baber/WOPTO huggingface dataset:
Patent GB-481091-A (GB)
Title: Improved method of and apparatus for fitting turbine blades to turbine rotors or casings
IPC: F01D5/30
Filed: 1937-10-22
Abstract: 481,091. Assembling turbine blades; caulking. STEPHEN & SONS, Ltd., A., and GRANGE, G. R. Oct. 22, 1937, No. 28817. [Classes 83 (ii) and 83 (iv)] Turbine blades fitted tightly in grooves are assembled by a tool L carried by an arm A, which is mounted concentrically with the rotor and operated by a pinion C from a rack integral with a cylinder D moved by fluid pressure over a piston F. A supply pipe N delivers fluid by means of a, valve O either through a pipe P and hollow rod H to one side of the piston or through a pipe R and a pipe S to the other side thereof. When the tool L forces the blade to its final position the resistance encountered opens a release valve T in the pressure system.
Patent GB-655751-A (GB)
Title: Method of surface treating thin metal strip or members
IPC: C21D7/04
Filed: 1948-11-05
Abstract: 655.751. Sand-blast. KAYSER, J. F., and GILLETTE INDUSTRIES, Ltd. Nov. 5, 1948. No. 28837. [Class 60] [Also in Group XXII] Cold-rolled steel strip of a thickness of not more than fifteen thousandths of an inch, such as that used for safety razor blades, previously hardened and tempered, or members made therefrom, has the surface stress relieved by scarifying one or both faces of the strip or member. The scarifying may be by emery cloth, liquid honing, by etching, or by the following methods:-(1) steel strip of a hardness between 750 and 850 Vickers units is scratched by one or more diamond points with an angle of about 135 degrees operating under a load of 200 grams to produce 15 scratches per millimeter, the scratches having a depth of, for example. 0.6 microns; (2) angular grit, such as that known under the Registered Trade Mark " Aloxite," with major and minor dimensions of 250 and 125 microns respectively used in conjunction with an air blast of 5 lbs. per square inch to grit blast both sides of the strip simultaneously. The scarification may be made longitudinally or transversely and is generally at right angles to the direction of the stress to be'applied.
Patent GB-266048-A (GB)
Title: Improvements in self-feeding electrically-heated water boilers
IPC: F24H1/20
Filed: 1925-11-17
Abstract: 266,048. Jackson Boilers, Ltd., and Hargreaves, H. Nov. 17, 1925. Heating by electricity.-Relates to an electric boiler, preferably self-feeding, comprising a water chamber 4 connected to a boiling chamber 8 having a pipe 10 leading to a collecting chamber 11 fitted with draw-off means 12, and consists in providing an overflow pipe 13 extending from the collecting chamber to the lower part of the water chamber. In Fig. 1 a baffle 15 is fitted in the water chamber above the opening to the overflow pipe. In Fig. 2 the pipe 13 may be fitted in either of the positions shown. The water supply is connected to a chamber 17 fitted with a floatoperated valve. Any steam formed in the water chamber is conducted to the chamber 17 by a connection 22. The immersion heaters 9, 19 are inclined to prevent collection of fur thereon. The heater 19 is sufficient to maintain the water at boiling point and the main heater may be cut out by a thermostatic switch when boiling point is reached. A switch for the main heater wired in parallel with the thermostatic switch may be operated by the draw-off tap.
Patent GB-1338787-A (GB)
Title: Optical equipment
IPC: G06V10/88
Filed: 1971-06-21
Abstract: 1338787 Finger-print recognition KMS INDUSTRIES Inc 21 June 1971 [22 June 1970] 28902/71 Heading G4R [Also in Division G2J] An arrangement for confirming the identity of  a person includes an optical system for comparing a finger-print of the person with a Fourier transform finger-print hologram mounted on an identity card presented by him.  The arrangement includes two contra-rotating transparent plates which cause the image of the finger-print to be moved over the hologram to compensate for mispositioning of the fingerprint. In operation, the user places his identity card at 52, Fig. 1, and rolls his finger, coated with a light oil, on transparent plate 46 to deposit a finger-print there. Light from laser 20 passes through the finger-print and is directed on to the hologram on the identity card 52. The  image of the finger-print is moved in a rosettelike scan over the hologram by contra-rotating  inclined plates 118, 120. The plates rotate at different speeds. If the finger-print and holo-  gram match, and if the hologram has been prepared using an optical system identical to that used in the identifying arrangement, a correlation spot of light will be formed and imaged on detector 70. Since the total light output energy from the hologram when the finger-print does not match may be about the same as that of the correlation spot occurring when there is match, a slit is moved repeatedly across the face of the detector so that the detector receives a pulse whenever the slit is aligned with the spot. Detection of the pulses indicates that the identity card hologram matches the finger-print placed on plate 46. To prevent false operation due to the brightness of the D.C. spot, this area is blanked off, either by an opaque region on a plate 51 or by rendering the centre of the hologram opaque during its  preparation. The hologram is prepared by placing the identity card with an unexposed film at 52 and placing a finger-print on plate 46. Light from laser 20 is split in two beams 30, 40. The paths of the beams are as shown, resulting in the  formation of a hologram on the film. The plates 118, 120 are not used during preparation of the hologram.
Patent GB-901262-A (GB)
Title: Electrical switch contact arrangement
IPC: H01H1/24
Filed: 1960-08-22
Abstract: 901,262. Press-button retractive switches; contact-members for switches. SQUARE D CO. Aug. 22, 1960 [Nov. 16, 1959], No. 28924/60. Class 38 (5). A switch, e.g. for operation by a push-button pilot light assembly such as that of Specification 899,706 comprises two elongated members 32, 34 the latter being flexible, which are riveted together at 36 and are rockable between casing projections 56, 57. A bridging contact 40 or 42 is resiliently clamped between adjacent ends of the members 32, 34, rocking of the contacts 40, 42 being possible to provide contact wiping, but other displacement being prevented by lugs 44, 45, 46, 47. An operating plunger 16 has a notch 60 receiving one end 62 of the member 32. In a modification, Figs. 7, 8 (not shown), members 32, 34 are both resilient.
Patent GB-953801-A (GB)
Title: Improvements in or relating to getter ion pumps
IPC: H01J41/12
Filed: 1960-08-22
Abstract: 953,801. Ion-getter pumps. W. C. HERAEUS G.m.b.H. Aug. 22, 1960 [Aug. 20, 1959], No. 28970/60. Heading H1D. In a getter pump or ion-getter pump in which a getter layer is formed by evaporation, a barrier layer is evaporated on top of the getter layer when the latter is saturated and a fresh getter layer is evaporated on top of the barrier layer, the diffusion of gas or vapour molecules, or ions from the getter layer to the freshly vaporized getter layer thus being prevented. The barrier layer may be evaporated after admission of air into the pump and intermittently during operation, getter layers also being evaporated intermittently during operation. The getter layer is of titanium and the barrier layer is of gold, silver, platinum, ruthenium, rhodium, palladium, osmium, iridium, copper, nickel, cadmium or tantalum, or fluorides e.g. of magnesium or thorium.
Patent GB-1317799-A (GB)
Title: Socket
IPC: F16B37/06
Filed: 1970-06-16
Abstract: 1317799 Welding by pressure AGA-PLATFORADLING AB 16 June 1970 29023/70 Heading B3R [Also in Division F2] A self piercing socket has a frusto-conical body provided with a flange 14 at its smaller end and its larger end forming a cutting edge 11. A weld edge 13 projects from the flange 14 so that after the socket has pierecd the wall of the workpiece a pair of electrodes 9, 10 applied to the socket and workpiece cause the socket to become welded to the workpiece through the weld edge 13. The bore of the socket is screw threaded and in addition or alternatively the peripheral wall of the flange may be screw threaded. The upper surface of the flange may be plane or grooved to receive an O-ring.
Patent GB-1519612-A (GB)
Title: Cassettes for cameras
IPC: G03B17/30
Filed: 1975-07-10
Abstract: 1519612 Film cassette H A H SPENCEBATE 10 July 1975 [18 July 1974] 29115/75 Heading B8M In a light-tight microfilm cassette 1 unexposed film 7 is fed by rollers 13, 14 from a supply means 2 round a guide 11 to a suction platen 4 where it is held between the platen 4 and a filming aperture, and the then exposed film 7 is supplied via guide 12 to a film take-up means 3. A take-up spool 3 is driven by a belt pulley arrangement wherein drive is transmitted to a roller 19 by a drive roller 20 of the camera in which the cassette is used. A roll pin 28 periodically rotates a geneva wheel 29 provided with a segment 32 which, when contacts a reed switch 33 of the camera, stops the motor of the camera. In another embodiment, instead of the spools, a microfiche laminae is used which is provided with unexposed and exposed film retaining compartments separated by a resilient partition (64) Fig. 2 (not shown). In this embodiment the exposed film, leaves via a door (66) for processing by deflecting first a diverter guide (65). Fig. 3 shows cassettes movable by means of an activator 45, a lens turret 47 having at least one camera lens, a record to be filmed in an object plane 48 and a tilting card 49. In the Fig. 5 embodiment the suction platen 81 itself causes film stepping while the spools 83 may remain locked. When the film has been exposed the take-up spool 83 is unlocked and rotated to take-up the exposed film.
Patent GB-489910-A (GB)
Title: Improvements in or relating to the manufacture of articles having hard metal surfaces or inlaid parts
IPC: B23K28/00
Filed: 1937-10-25
Abstract: 489,910. Casting. NAAMLOOZE VENNOOTSCHAP WALLRAMIT HANDEL MAATSCHAPPIJ. Oct. 25, 1937, No. 29134. Convention date, Nov. 10, 1936. [Class 83 (i)] In a method of giving a metal article, such as a drawing die, milling cutter, or dredger tooth, one or more " hard metal " surfaces, coatings, or inlaid portions, the hard material in granular or powdery form is introduced into a mould and retained in position by perforated grids, sheets or meshed members and the body of the article, which may consist of one or more metals, subsequently integrated therewith in a casting operation performed with said grids, sheets or members in position. For casting a drawing die, the mould 1, has the interior space 2 first filled with the desired " hard metal " in granular form, such as a carbide, boride, or nitride of a heavy metal, a perforated grid 3 of steel sheet or wire is then inserted and secured by a pin 4. The free space 6 is then filled by casting in the carrier metal such as steel, iron or any other metal or alloy. The mould is preferably preheated, although the carrier metal may be introduced into the mould cold, and the mould then heated ; it is stated to be advantageous to shake the mould slightly during casting. The material of the grid may be such as to melt and combine with the carrier metal, or it may be of a material such as molybdenum which does not melt during the casting operation. A small quantity of cast metal may be provided around the " hard metal " portion in a first casting operation and a cheaper metal then used to fill the mould to complete the article, also in producing complicated articles the " hard metal portions may be first sintered or cold-pressed and then introduced into the mould for the finished article.
Patent GB-1385816-A (GB)
Title: Vent opening grill with adjustable louvres
IPC: F24F13/08
Filed: 1972-06-22
Abstract: 1385816 Making ventilation grilles FAREX FABRIKKER AS 22 June 1972 [22 June 1971] 29274/72 Heading B3A [Also in Division F4] A ventilation grille comprises a rectangularly shaped frame having at least two opposite sides provided with at least one groove 9, rails 13 located in the grooves 9, and louvre blades 11 pivotally mounted on the rails 13. In the form shown, each side of the frame includes two grooves 9, 10 and two sets of louvre blades 11, 12 at right angles to one another are supported by rails 13, 14 respectively. The sides of the frame are riveted, stuck or welded together. The rails 13, 14 include integral pins for supporting the blades 11, 12 or holes for engagement by pins on the blades or separate therefrom. The grille is made of metal or plastics. In another embodiment, two opposite sides of the frame are cut and bent from a single sheet to form a frame having a surrounding flange. The sides of the frame are shaped by stamping, punching or rolling.
Patent GB-319784-A (GB)
Title: Improvements in motor vehicles
IPC: B62D7/08
Filed: 1929-09-27
Abstract: 319,784. Reigneron, J. B. Sept. 29,1928, [Convention date]. Addition to 269,432. De-clutching for steering.-Comprises clutch mechanism actuated by the steering-gear whereby both rear wheels are normally driven, but the inner wheel on a curve is de-clutched from the driving mechanism. A gearwheel n, mounted on the front axle and oscillated by the steering-gear as described in the parent Specification, drives a chain-wheel q connected by chains q<2>, 19 and rods 16 to a chainwheel q<3> carried by the rear axle and actuating a clutch fork 62<1>. A collar 58, engaged by the clutch fork, is slidably-keyed on a short central driving shaft 56 rigid with the driving bevel wheel 57, and is provided with pins 59 projecting on both sides of the collar and sliding in holes in the bevel wheel and in the inner ends of the axle shafts 63, 69 so as to couple the bevel wheel and the collar to the axle shafts. When the collar is in its central position the pins 59 engage both axle-shafts, but when the steering gear is actuated the chain wheels are rotated and the clutch fork is moved in one direction or the other so as to cause the axle shaft driving the inner wheel on the curve to be disconnected from the driving gear. A spring pawl or slipping clutch is provided between the driving gear and the axle shaft 69 as described in the parent Specification.
Patent GB-939054-A (GB)
Title: Data processing system
IPC: G11C15/04
Filed: 1962-08-01
Abstract: 939,054. Digital computers. RADIO CORPORATION OF AMERICA. Aug. 1, 1962 [Aug. 8, 1961], No. 29628/62. Class 106 (1). A computer having a magnetic core memory 14 in which certain storage locations are defective has an auxiliary store 40 containing the addresses of the defective locations and associated replacement location addresses, the arrangement being such that each address word is compared with all the addresses stored in the auxiliary store 40 and if an equality is detected a replacement address is read out and is effective to address the memory 14 instead of the original address. In the auxiliary store 40, Fig. 6, the defective addresses are stored by connecting diodes such as 112-118 between a row wire and appropriate ones of " 0 " and " 1 " outputs of the flip-flop stages of an input register in which each memory address word is entered in turn. If the input address word corresponds to the number stored in a particular row, an output on that row wire is effective to produce a replacement output address on leads 64 via diodes such as 120-124.
Patent GB-481619-A (GB)
Title: Improvements in or relating to methods of stabilizing shortening, and the stabilizedshortening resulting therefrom
IPC: C11B5/00
Filed: 1936-10-31
Abstract: A shortening preparation stabilized against rancidity is prepared by mixing a shortening thoroughly with a relatively small amount, e.g. 1-10 per cent by weight, of hydrogenated refined soya bean oil.  The soya bean oil may be hydrogenated to the consistency of the shortening and may be deodorized, or deodorization may be effected after the mixing and at a temperature sufficiently high to destroy lecithin.  In a modification, refined soya bean oil is added to the shortening and the mixture subjected to hydrogenation.  The shortenings treated include lard, beef fat and hydrogenated cotton-seed oil.ALSO:A shortening preparation stabilized against rancidity is prepared by mixing a shortening thoroughly with a relatively small amount, e.g. 1-10 per cent by weight, of hydrogenated refined soya bean oil.  The soya bean oil may be hydrogenated to the consistency of the shortening and may be deodorized, or deodorization may be effected after the mixing and at a temperature sufficiently high to destroy lecithin.  In a modification, refined soya bean oil is added to the shortening and the mixture, subjected to hydrogenation.  The shortenings treated include lard, beef fat and hydrogenated cottonseed oil.
Patent GB-627233-A (GB)
Title: Improvements in or relating to hair driers
IPC: A45D20/22
Filed: 1946-10-04
Abstract: 627,233. Hair dryers. DEXTER, F. C., and DEXTER, F. W. Oct. 4, 1946, No. 29715. [Class 81(ii)] A recirculatory hair drying hood of the type in which air is electrically heated in the hood and circulated in a closed cycle therein by means of a fan or blower, is provided with air inlets at the end remote from the head-receiving end, which inlets are regulated by a rotary control means to vary the temperature of the interior. As shown in Fig. 2, the hood comprises a cylindrical sleeve 3 detachably clamped to annular metal castings 1. 2, the casting 2 having head opening 10 surrounded by an inturned rim 11. The casting 1 has an end wall 4 to which the electric motor 6 is bolted, the motor shaft 7 passing through an opening 8 and having a centrifugal fan 9, with vanes 27, secured to it. An inner hood 19, having a guard cover 21 at its upper end, is secured to the sleeve 3, air, deflected by the rim 11, returning through this hood to the fan. A pair of spaced annular heating elements 25 secured to insulating brackets 24 carried by a lining 23 within the hood, heat the air from the fan 9. A back plate 26 of the fan is provided with air inlet openings. As shown in Fig. 3, the end wall 4 is also provided with air inlet opening 29' and a shutter plate 31, having corresponding openings 32, is mounted for oscillation on an annular boss 30 and is held in contact with the wall 4 by means of radial spring- controlled pressure plates 34. An operating arm 38, which is provided to adjust the position of the shutter plate and has a pointer moving over graduations, extends through an arcuate slot in a detachable end cap 40 provided on the casing 1, Fig. 2, and may be operated by remote control. The cap encloses the motor and has air inlet apertures 41 at its upper end.
Patent GB-466547-A (GB)
Title: Improvements in electric cooking stoves
IPC: F24C15/34
Filed: 1936-11-02
Abstract: 466,547. Electric cooking stoves. FLURY, A., and BRUNOLD, W. Nov. 2, 1936, No. 29759. [Class 39 (iii)] In an electric cooking stove the individual hot plates 8 can be brought under a cooking utensil or under a hot water reservoir 3 at will. The hot plates run on a rail track 17 and the top cover of the stove is hinged at point 12 so that it may be raised to free the plates to run on their track when necessary. Couplings 13 and 18 supply current to the plates in either of their two heating positions. When under the reservoir 3 the heating of the plate is regulated by a thermostat 20. A compartment 5 for articles to be warmed projects into tank 3. Automatic switches cut off the current when the plate moves..
Patent GB-184105-A (GB)
Title: Improvements in and relating to garments
IPC: A41B13/04
Filed: 1921-11-08
Abstract: 184,105. White, A. E., (Kleinert Rubber Co., I. B.). Nov. 8, 1921. Pants, baby.-The expansible openings such as leg holes 2 or waist parts 3 of moisture-proof garments of the type worn by infants are sealed by a binding-strip 4 which encloses the shirring 5. The binding-strips are of elastic material, preferably rubber, and are attached by the stitches 6 which produce the shirring.
Patent GB-680183-A (GB)
Title: Improvements in machines for producing gears
IPC: B23F9/10
Filed: 1948-07-06
Abstract: 680,183. Gear-cutting and grinding. GLEASON WORKS. July 6, 1948 [Oct. 15, 1947], No. 29777/50. Divided out of 680,104. Class 83 (iii). A gear-cutting machine comprises a tool support C, a work-spindle 308 journalled in a work support, a movable carrier 35 on which one of the supports is mounted, means including gearing for driving the work spindle 308 and the carrier 35 in timed relation, at least one of which means includes change gears, a rotary cam 150 for actuating both means and for reversing the directions of their drive, and means for rotating the cam always in one direction. The machine described and its modifications are identical with those of Specification 680,104.
Patent GB-1374198-A (GB)
Title: Process and apparatus for use in making raw fibre and for making  pulp from agave plants
IPC: D01B1/10
Filed: 1972-06-26
Abstract: 1374198 Obtaining fibres; pulp manufacture STADLER HURTER Ltd 26 June 1972 29795/ 72 Headings D1F and D2W In obtaining raw fibres from plants of the agave group and/or hybrids thereof e.g. sisal, the leaves (and if desired up to 23% by weight of boles of the plants) are chopped or shredded in a direction perpendicular to their longitudinal axis into short sections e.g. of 0.5-2.0 inches in length. Within eight hours of shredding, skin, pith and other waste materials are separated from the fibres by first refining the sections and then screening the refiner output. The raw fibre is softened or "welted", as by wetting or soaking with a liquid and/or steam, to raise the bulk density and may then be fed into a digestor to be converted, as by an alkaline treatment, into pulp. In the operation of the apparatus shown, sisal leaves or bundles &c force fed by belts 4 are chopped by cooperative action of an anvil 5 and a cutter A formed by a roller 1 with radially extending blades and collecting grooves 3. Cut sections are fed e.g. by screw extruder (not shown) perhaps with water supplied through line 20 to a refiner B between opposed serrated faces of adjustably separated discs 6, 7, of which the sections are finely reduced. The reduced leaves &c pass through a water bath C, which further separates fibres and waste, and the mixture flows onto screening apparatus D (comprising a flooded screen 11 over a bath 12 and overhead showers 13 and 14) whereon raw fibre is retained and water and waste withdrawn. Screen 11 has a flattened U-shaped cross-section and vibrates with elliptical motion, the fibres being shaken therealong. Repeated treatments by secondary refining and screening apparatus (not shown) may be applied. The obtained fibres may be stored or proceed directly or by way of a conveyor 16 to a continuous digestor E the pulp from which is treated by washing and screening apparatus 17, bleaching apparatus 18, and centrifugal cleaner 19.
Patent GB-303955-A (GB)
Title: Improvements in or relating to apparatus for use in drilling wells
IPC: E21B19/08
Filed: 1927-11-07
Abstract: 303,955. Vickers, Ltd., Childs, J., and Little, H. L. Nov. 7, 1927. Variable-speed epicyclic gearing.-A sprocket 63 drives a sun gear 65, and planet gears 67 mesh with the sun gear and with an internal gear 64 and are carried by a slidable member 66 keyed to a part 8 of a differential through which parts of a welldrilling plant are driven. For a low speed drive, a dog 70 is engaged with teeth 69 to hold the internal gear 64 stationary, and for a high speed drive, the member 66 is moved by a lever 75 to lock with the internal gear through clutch teeth 68, the dog 70 and lever 75 having common controlling means 73, 72, 71.