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The dataset generation failed
Error code: DatasetGenerationError
Exception: TypeError
Message: Couldn't cast array of type
struct<OCL: list<item: string>, XCL: list<item: string>, EDF: list<item: string>, ICL: list<item: string>, FSC: list<item: string>, FSS: list<item: string>, DCL: list<item: string>>
to
{'OCL': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'XCL': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'EDF': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'ICL': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'FSC': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'FSS': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None)}
Traceback: Traceback (most recent call last):
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1870, in _prepare_split_single
writer.write_table(table)
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/arrow_writer.py", line 622, in write_table
pa_table = table_cast(pa_table, self._schema)
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2292, in table_cast
return cast_table_to_schema(table, schema)
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2245, in cast_table_to_schema
arrays = [
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2246, in <listcomp>
cast_array_to_feature(
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 1795, in wrapper
return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 1795, in <listcomp>
return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2005, in cast_array_to_feature
arrays = [
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2006, in <listcomp>
_c(array.field(name) if name in array_fields else null_array, subfeature)
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 1797, in wrapper
return func(array, *args, **kwargs)
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2013, in cast_array_to_feature
casted_array_values = _c(array.values, feature[0])
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 1797, in wrapper
return func(array, *args, **kwargs)
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2108, in cast_array_to_feature
raise TypeError(f"Couldn't cast array of type\n{_short_str(array.type)}\nto\n{_short_str(feature)}")
TypeError: Couldn't cast array of type
struct<OCL: list<item: string>, XCL: list<item: string>, EDF: list<item: string>, ICL: list<item: string>, FSC: list<item: string>, FSS: list<item: string>, DCL: list<item: string>>
to
{'OCL': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'XCL': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'EDF': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'ICL': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'FSC': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'FSS': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None)}
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1417, in compute_config_parquet_and_info_response
parquet_operations = convert_to_parquet(builder)
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1049, in convert_to_parquet
builder.download_and_prepare(
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 924, in download_and_prepare
self._download_and_prepare(
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1000, in _download_and_prepare
self._prepare_split(split_generator, **prepare_split_kwargs)
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1741, in _prepare_split
for job_id, done, content in self._prepare_split_single(
File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1897, in _prepare_split_single
raise DatasetGenerationError("An error occurred while generating the dataset") from e
datasets.exceptions.DatasetGenerationError: An error occurred while generating the datasetNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
text string | meta dict |
|---|---|
The invention pertains to the field of motion damping devices used with submerged marine instrumentation for damping instrumentation movement and displacement due to wave and water motion.
In underwater transducer and hydrophone installations, such as in a sonobuoy system for detecting submarine sounds and the like, th... | {
"bibliographic_information": {
"Patent Number": "RE0286710",
"Series Code": "5",
"Application Number": "500649&",
"Application Type": "2",
"Art unit": "315",
"Application Filing Date": "19740826",
"Title of Invention": "Hydrophone damper assembly",
"Issue Date": "19760106",
"Numb... |
(1) Field of the invention
The invention is directed to the method of packaging and preserving perishable products after being packaged by purging the package of air after the perishable product is packaged and substituting an inert fluid for the air.
(2) Description of the prior art
Applicant is not aware of prior art... | {
"bibliographic_information": {
"Patent Number": "RE0286737",
"Series Code": "5",
"Application Number": "5479657",
"Application Type": "2",
"Art unit": "324",
"Application Filing Date": "19750207",
"Title of Invention": "Method of preserving perishable products",
"Issue Date": "197601... |
1. Field of the Invention
This invention pertains to new and novel improvements in motor vehicles, and more particularly to a heavy duty vehicle such as a tractor-trailer truck combination.
2. Statement of the Prior Art
It has heretofore been proposed to provide removable sub-chassis assemblies for motor vehicles. Exam... | {
"bibliographic_information": {
"Patent Number": "RE0286753",
"Series Code": "5",
"Application Number": "491922&",
"Application Type": "2",
"Art unit": "316",
"Application Filing Date": "19740725",
"Title of Invention": "Removable vehicle chassis sub-frame with engine",
"Issue Date": ... |
1. Field of the Invention
This invention relates to a device designed to improve a golfer's grip on a golf club, and more particularly, to a device to assist a golfer in maintaining the proper position of the fingers of one hand with respect to the other hand on the club during the entire swing of the golf club.
2. Des... | {
"bibliographic_information": {
"Patent Number": "039302717",
"Series Code": "5",
"Application Number": "5328756",
"Application Type": "1",
"Art unit": "353",
"Application Filing Date": "19741216",
"Title of Invention": "Golf glove",
"Issue Date": "19760106",
"Number of Claims": "... |
This invention relates to juvenile furniture hardware. It relates more particularly to an improved leg lock for a crib, playpen or other height adjustable enclosure.
There is a growing awareness of the need to make juvenile furniture even safer for children. In the specific case of height-adjustable cribs and pens, con... | {
"bibliographic_information": {
"Patent Number": "039302725",
"Series Code": "5",
"Application Number": "5015332",
"Application Type": "1",
"Art unit": "355",
"Application Filing Date": "19740910",
"Title of Invention": "Crib leg lock",
"Issue Date": "19760106",
"Number of Claims"... |
This invention relates to an assembly usable as a boat or as an accessory with sailboats and powerboats and may be employed for many purposes to add to the comfort, convenience and safety of the boating public. The assembly may also be used as a vehicle on land or ice.
It is known in the prior art to use the weight of ... | {
"bibliographic_information": {
"Patent Number": "039302741",
"Series Code": "5",
"Application Number": "5139813",
"Application Type": "1",
"Art unit": "315",
"Application Filing Date": "19741011",
"Title of Invention": "Assembly for use in recreational activities",
"Issue Date": "197... |
This invention relates to automobile washing apparatuses and in particular to the means for automatically conveying an automobile through the apparatus.
One of the problem areas with automatic washing of automobiles is the thorough cleaning of the wheels and it has become the practice to spin the wheels at a rate more ... | {
"bibliographic_information": {
"Patent Number": "039302768",
"Series Code": "5",
"Application Number": "2782588",
"Application Type": "1",
"Art unit": "242",
"Application Filing Date": "19720807",
"Title of Invention": "Wheel spinning and vehicle conveying apparatus for automatic wheel w... |
This invention relates generally to removable attachments for paintbrushes, and more particularly to an attachment device for use on a paintbrush to assist in forming straight uniform edges at the interface of intersecting surfaces and allow application of paint to the intended surface while preventing unintentional sm... | {
"bibliographic_information": {
"Patent Number": "039302784",
"Series Code": "5",
"Application Number": "459696&",
"Application Type": "1",
"Art unit": "242",
"Application Filing Date": "19740410",
"Title of Invention": "Paintbrush and guard attachment for edging",
"Issue Date": "1976... |
The present invention relates to a bottle insert for sealing between a reservoir assembly and an applicator in a product container, especially such an insert for providing a noncylindrical wiping action over a comb type applicator tip. Bottle inserts are utilized in reservoir assemblies containing products for a wide v... | {
"bibliographic_information": {
"Patent Number": "039302806",
"Series Code": "5",
"Application Number": "4836944",
"Application Type": "1",
"Art unit": "243",
"Application Filing Date": "19740627",
"Title of Invention": "Bottle insert for product container",
"Issue Date": "19760106",
... |
The present invention relates to a new and improved construction of floor cleaning machine constructed in the form of a carriage or mobile car equipped with a shaft or center pole and having at least one motor-driven cleaning implement or tool, such as a brush or pad, rotating about a substantially verical axis for the... | {
"bibliographic_information": {
"Patent Number": "039302814",
"Series Code": "5",
"Application Number": "4889819",
"Application Type": "1",
"Art unit": "242",
"Application Filing Date": "19740716",
"Title of Invention": "Floor cleaning machine",
"Issue Date": "19760106",
"Number o... |
It is to be understood that the present invention pertains to removing skin from the backs of poultry and fowl including old and young chickens, at least small turkeys, ducks, and guineas, but for simplicity; the same are hereinafter defined by the generic term "poultry".
In the commercial processing of poultry for hum... | {
"bibliographic_information": {
"Patent Number": "039302822",
"Series Code": "5",
"Application Number": "5074371",
"Application Type": "1",
"Art unit": "333",
"Application Filing Date": "19740919",
"Title of Invention": "Machine for processing the backs of poultry",
"Issue Date": "197... |
Various methods have been employed heretofore in mechanically pulling the hides from meat animals, as a step in the processing of meat on a rapid production basis. According to one method, as disclosed in U.S. Pat. No. 3,626,550, a carcass is suspended by the hind legs and mechanical means are provided for stripping a ... | {
"bibliographic_information": {
"Patent Number": "039302849",
"Series Code": "5",
"Application Number": "304386&",
"Application Type": "1",
"Art unit": "333",
"Application Filing Date": "19721107",
"Title of Invention": "Hide pulling method and apparatus",
"Issue Date": "19760106",
... |
There is a definite need for inexpensive holding straps for any desired purpose e.g., wrist watch straps, belts, head bands, and binding and strapping means in general, and it is the object of the present invention to provide a very inexpensively manufactured, long lasting strap having a connection that is easily opera... | {
"bibliographic_information": {
"Patent Number": "039302873",
"Series Code": "5",
"Application Number": "5258219",
"Application Type": "1",
"Art unit": "351",
"Application Filing Date": "19741121",
"Title of Invention": "Adjustable strap",
"Issue Date": "19760106",
"Number of Clai... |
Slub catchers and tensioning devices are the subject matter of numerous patents. In a recently issued U.S. Pat. No. 3,769,668 a device combining slub catching and tensioning was designed to enable reducing the distance involved in obtaining both slub removal and tensioning in one passage of the yarn as distinguished fr... | {
"bibliographic_information": {
"Patent Number": "039302911",
"Series Code": "5",
"Application Number": "4669827",
"Application Type": "1",
"Art unit": "352",
"Application Filing Date": "19740506",
"Title of Invention": "Combination tension and slub catching device",
"Issue Date": "19... |
The invention relates to an apparatus for processing yarn packages for dyeing and, in particular, to an apparatus for replacing a relatively impervious transfer core of a yarn package with a dye penetrating foraminous core.
Yarn that has been processed for dyeing may be in the form of bulked continuous filament thermop... | {
"bibliographic_information": {
"Patent Number": "039302938",
"Series Code": "5",
"Application Number": "4838149",
"Application Type": "1",
"Art unit": "352",
"Application Filing Date": "19740627",
"Title of Invention": "Method of replacing the transfer cores of yarn packages with resilie... |
Reference may be had to the patents to S. E. Kalen, U.S. Pat. Nos. 3,626,560; 3,736,633 and that to C. A. Kruse, Jr., U.S. Pat. No. 3,656,333 and the references cited therein for a disclosure of the pertinent prior art. | {
"bibliographic_information": {
"Patent Number": "039302946",
"Series Code": "5",
"Application Number": "5439701",
"Application Type": "1",
"Art unit": "324",
"Application Filing Date": "19750124",
"Title of Invention": "Cylindrical surface finishing device",
"Issue Date": "19760106",... |
The present invention relates generally to the field of film winding and packaging devices and techniques, and more specifically, to a machine and method for winding film into a scroll and loading it with a film take-up spool into an empty film cartridge such as commonly used in photographic still cameras.
Cartridges o... | {
"bibliographic_information": {
"Patent Number": "039302962",
"Series Code": "5",
"Application Number": "4919947",
"Application Type": "1",
"Art unit": "321",
"Application Filing Date": "19740726",
"Title of Invention": "Method and machine for loading and assembling film cartridges",
... |
1. Field of the Invention
This invention relates to metalworking and more particularly to a mechanical process by flaring an inserted tube end or expanding a part in an aperture or radial expanding an internal fitted tube.
2. Description of the Prior Art
The prior art of metalworking has known many types of tube and fi... | {
"bibliographic_information": {
"Patent Number": "039302989",
"Series Code": "5",
"Application Number": "554971&",
"Application Type": "1",
"Art unit": "321",
"Application Filing Date": "19750303",
"Title of Invention": "Method of forming a tube fitting assembly",
"Issue Date": "19760... |
1. Field of the Invention:
The present invention relates generally to junction field effect transistors and more particularly to the fabrication of a junction field effect transistor with the aim of minimizing the devices "on resistance" and thereby increasing the yield of acceptable devices.
2. The Prior Art
Typically... | {
"bibliographic_information": {
"Patent Number": "039303004",
"Series Code": "5",
"Application Number": "3476812",
"Application Type": "1",
"Art unit": "325",
"Application Filing Date": "19730404",
"Title of Invention": "Junction field effect transistor",
"Issue Date": "19760106",
... |
The present invention relates to a machine tool provided with an automatic tool change device and a guard cover apparatus.
In a machine tool with an automatic tool change device wherein a tool storage magazine storing a plurality of radially arranged tools is provided above a spindle, a guard cover or net has usually b... | {
"bibliographic_information": {
"Patent Number": "039303020",
"Series Code": "5",
"Application Number": "5395135",
"Application Type": "1",
"Art unit": "324",
"Application Filing Date": "19750108",
"Title of Invention": "Machine tool with guard cover apparatus",
"Issue Date": "1976010... |
1. Field of the Invention
The present invention relates to a method for manufacturing compact thermoelectric modules.
2. Description of the Prior Art
Thermoelectric modules comprising P type elements and N type elements stacked alternately, each element of one type being connected to the neighbouring elements which are... | {
"bibliographic_information": {
"Patent Number": "039303039",
"Series Code": "5",
"Application Number": "5437423",
"Application Type": "1",
"Art unit": "325",
"Application Filing Date": "19750124",
"Title of Invention": "Method for manufacturing compact thermoelectric modules",
"Issue... |
The present invention relates to a process for attaching a thermally and electrically conductive lead to a refractory metal contact of a semiconductor device by a high temperature brazing process.
Passivated semiconductor devices generally include a semiconductor body composed substantially of silicon, a layer of passi... | {
"bibliographic_information": {
"Patent Number": "039303063",
"Series Code": "5",
"Application Number": "4636783",
"Application Type": "1",
"Art unit": "325",
"Application Filing Date": "19740424",
"Title of Invention": "Process for attaching a lead member to a semiconductor device",
... |
This invention relates to a method and apparatus for the assembly and testing of intricate components. One example of the use of such a method and apparatus is in the assembly and testing of wiring harnesses for vehicles, such as automobiles. Such wiring harnesses require the assembly and testing of a plurality of intr... | {
"bibliographic_information": {
"Patent Number": "039303071",
"Series Code": "5",
"Application Number": "4845307",
"Application Type": "1",
"Art unit": "321",
"Application Filing Date": "19740701",
"Title of Invention": "Assembly of wiring harness",
"Issue Date": "19760106",
"Numb... |
The conventional knife with a folding blade can be conveniently carried and handled since the blade of such a knife can be inserted into the slot of the handle, where the cutting edge and tip of the blade are shielded and the knife is effectively shorter. The conventional folding knife usually requires the presence of ... | {
"bibliographic_information": {
"Patent Number": "039303098",
"Series Code": "5",
"Application Number": "474389&",
"Application Type": "1",
"Art unit": "323",
"Application Filing Date": "19740530",
"Title of Invention": "Ring lock knife",
"Issue Date": "19760106",
"Number of Claim... |
U.S. Pat. Nos. 2,972,363 and 3,438,410 disclose annular ring saws which employ apertured circular blades. These portable power saws permit a depth of cut greater than the radius of the blade.
The ring blades shown in these two patents are each peripherally driven by a power roller. Each blade has grooves formed in its ... | {
"bibliographic_information": {
"Patent Number": "039303101",
"Series Code": "5",
"Application Number": "4464990",
"Application Type": "1",
"Art unit": "324",
"Application Filing Date": "19740227",
"Title of Invention": "Stable power ring tool",
"Issue Date": "19760106",
"Number o... |
The present invention relates generally to fitting doors to selected door openings, and more particularly to a method and apparatus for quickly and easily sizing a selected door opening and cutting a door member to fit the opening. | {
"bibliographic_information": {
"Patent Number": "039303152",
"Series Code": "5",
"Application Number": "4864433",
"Application Type": "1",
"Art unit": "243",
"Application Filing Date": "19740708",
"Title of Invention": "Apparatus for sizing a door to fit a selected doorway",
"Issue D... |
Various equipments and techniques are known for establishing azimuth or other position data for gun or missile batteries. One such technique employs surveying techniques using transits or their equivalents. This technique is slow, requires at least two men to perform, and requires quite a bit of skill on the part of th... | {
"bibliographic_information": {
"Patent Number": "039303179",
"Series Code": "5",
"Application Number": "4687248",
"Application Type": "1",
"Art unit": "243",
"Application Filing Date": "19740510",
"Title of Invention": "Electronic azimuth transfer method and system",
"Issue Date": "1... |
1. Field of the Invention
This invention provides an apparatus for drying a travelling web which may, for example, be a web of paper or paperboard.
2. Description of the Prior Art
The introduction of various new methods of forming paper and board in the last ten years has led to significant increases in paper machine s... | {
"bibliographic_information": {
"Patent Number": "039303195",
"Series Code": "5",
"Application Number": "5295831",
"Application Type": "1",
"Art unit": "344",
"Application Filing Date": "19741204",
"Title of Invention": "Drying apparatus",
"Issue Date": "19760106",
"Number of Clai... |
This invention relates to a clog and more particularly, to a pliable synthetic resin thong for use with the clog.
There have been proposed and practically employed a great variety of clogs and one of the most common type clogs comprises wooden body having a round hole positioned at a point in the longitudinal axis of t... | {
"bibliographic_information": {
"Patent Number": "039303225",
"Series Code": "5",
"Application Number": "5681464",
"Application Type": "1",
"Art unit": "353",
"Application Filing Date": "19750414",
"Title of Invention": "Clog",
"Issue Date": "19760106",
"Number of Claims": "1",
... |
1. Field of the Invention:
The invention herein pertains to a steam iron soleplate, generator, and steam distributor subassembly using inexpensive parts in an arrangement for easy cleaning and efficient conversion of all water to steam in a simplified arrangement that permits use of any number of soleplate surfaces.
2.... | {
"bibliographic_information": {
"Patent Number": "039303250",
"Series Code": "5",
"Application Number": "4914635",
"Application Type": "1",
"Art unit": "353",
"Application Filing Date": "19740724",
"Title of Invention": "Steam iron soleplate construction",
"Issue Date": "19760106",
... |
1. Field of the Invention.
The present invention relates to a calendar and more particularly to a calendar indicating the day, the date and the month of the year, for desk use.
2. Prior Art.
Heretofore, numerous calendars have been provided in the prior art which required a great deal of manipulation in order to change... | {
"bibliographic_information": {
"Patent Number": "039303268",
"Series Code": "5",
"Application Number": "4793757",
"Application Type": "1",
"Art unit": "336",
"Application Filing Date": "19740614",
"Title of Invention": "Desk calendar",
"Issue Date": "19760106",
"Number of Claims"... |
Various signboard constructions are shown in the prior art, one such construction being shown in U.S. Pat. No. 3,722,120 granted Mar. 27, 1973 to Henry Finkel. This Patent discloses a signboard construction having a four member frame formed of four aluminum extrusions having identical cross-sections, and a plurality of... | {
"bibliographic_information": {
"Patent Number": "039303276",
"Series Code": "5",
"Application Number": "5217334",
"Application Type": "1",
"Art unit": "333",
"Application Filing Date": "19741107",
"Title of Invention": "Signboard assembly",
"Issue Date": "19760106",
"Number of Cl... |
One common form of bait used for fishing is bread dough or dough balls. This type of bait is used by embedding a fishhook within the dough ball or otherwise forming the dough ball around the hook. Most generally, the bait is molded around the entire hook.
One of the problems encountered in molding the bait around the h... | {
"bibliographic_information": {
"Patent Number": "039303292",
"Series Code": "5",
"Application Number": "4996313",
"Application Type": "1",
"Art unit": "333",
"Application Filing Date": "19740822",
"Title of Invention": "Bait molding device",
"Issue Date": "19760106",
"Number of C... |
This invention relates generally to an outrigger fishing line release clip, and specifically to a clip which engages and holds a fishing line to the pay-out line on an outrigger pole, the clip providing predetermined tensioning for holding the fishing line such that when the line is hit by a fish, the clip will release... | {
"bibliographic_information": {
"Patent Number": "039303306",
"Series Code": "5",
"Application Number": "5461006",
"Application Type": "1",
"Art unit": "333",
"Application Filing Date": "19750131",
"Title of Invention": "Outrigger fishing line release clip",
"Issue Date": "19760106",
... |
With increasing number of apartments and condominiums, there has been a proportional increase in the demand for indoor plants. This demand is primarily based upon the desire to bring a little bit of the outdoors inside for a natural beautifying effect. Many of these plants are supported in various types of macrames whi... | {
"bibliographic_information": {
"Patent Number": "039303349",
"Series Code": "5",
"Application Number": "4716612",
"Application Type": "1",
"Art unit": "337",
"Application Filing Date": "19740520",
"Title of Invention": "Hanging apparatus for falls and hanging plant",
"Issue Date": "1... |
Windows embodying sash members which are both vertically slidable and tiltable are extremely well known in the art, as exemplified, for example, by Rodriguez U.S. Pat. No. 3,464,157 dated Sept. 2, 1969; Weidner et al. U.S. Pat. No. 3,434,236, dated Mar. 25, 1969; and Woodhams U.S. Pat. No. 3,091,005 dated May 28, 1963.... | {
"bibliographic_information": {
"Patent Number": "039303365",
"Series Code": "5",
"Application Number": "515099&",
"Application Type": "1",
"Art unit": "351",
"Application Filing Date": "19741015",
"Title of Invention": "Window construction",
"Issue Date": "19760106",
"Number of C... |
Cable window regulators of this form are used where, in pursuance of the trend in modern automobile construction, the window height is relatively large compared to the height of the wall part of the bodywork or door casing which must receive the opened window. In such cases, a relatively large travel distance must be a... | {
"bibliographic_information": {
"Patent Number": "039303390",
"Series Code": "5",
"Application Number": "4813952",
"Application Type": "1",
"Art unit": "351",
"Application Filing Date": "19740620",
"Title of Invention": "Window regulator, especially for automobiles, with a threaded cable ... |
The present invention relates to improvements in vertical truing apparatus, especially those intended for simultaneous truing of the bore and the periphery of annular rings.
Known machines of the kind in question comprise as we know a horizontal crosspiece associated with two fixed uprights supporting one or more heads... | {
"bibliographic_information": {
"Patent Number": "039303411",
"Series Code": "5",
"Application Number": "4387708",
"Application Type": "1",
"Art unit": "323",
"Application Filing Date": "19740201",
"Title of Invention": "Universal vertical grinding machine",
"Issue Date": "19760106",
... |
The present invention relates to a self-contained apparatus designed to sharpen general purpose right hand twist drills approximately one-eighth inch to approximately one-half inch in diameter to commercial tolerances. A large number of prior art twist drill grinding machines are known in the art. These machines grind ... | {
"bibliographic_information": {
"Patent Number": "039303420",
"Series Code": "5",
"Application Number": "4569466",
"Application Type": "1",
"Art unit": "323",
"Application Filing Date": "19740401",
"Title of Invention": "Sharpener for twist drills",
"Issue Date": "19760106",
"Numb... |
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