baber/WOPTO huggingface dataset:
Patent GB-1436774-A (GB)
Title: Developer for electrophotography and a method of manufacturing  the same
IPC: G03G9/12
Filed: 1973-05-07
Abstract: 1436774 Electrostatic developer AUSTRALIA DEPARTMENT OF SUPPLY  SECRETARY OF 7 May 1973 [15 May 1972] 21727/73 Heading G2H An electrostatic developer, of the kind having suspended toner particles in an insulating carrier liquid, is produced by causing the particles to be formed by precipitation within a liquid, so that they are not oxidized by the atmosphere during manufacture. Two insulating materials are dissolved in, or mixed homogeneously in, an insulating solvent or melt, and react to form suspended particles which are usable as toner particles or can be aggregated to form toner particles. Aggregation is brought about by diluting the liquid in which the particles were formed with a second insulating liquid, having a lower solvent power with respect to the material of the suspended particles. One of the materials used may be coloured, so that the toner particles produced are coloured. Materials which can be used are listed.
Patent GB-662440-A (GB)
Title: Improvements in or relating to coil winding machines and to methods of winding coilsthereby
Inventor: HARROLD ARTHUR EDWARD
IPC: H01F41/06
Filed: 1948-08-18
Abstract: 662,440. Coiling. GENERAL ELECTRIC CO., Ltd. Aug. 17, 1949 [Aug. 18, 1948], No. 21815/48. Class 83 (iv). [Also in Group IX] A machine for winding wire coils comprises in combination a former 7 for the coils adapted to be rotated about its longitudinal axis, and slidable means 12, 13 for guiding tensioned wire from a magazine 17, separate from the guiding means and not slidable therewith, on to the former at a predetermined angle, the guiding means being mounted on and supported only by the former, permitting relative movement in a direction parallel to the axis of the former, the arrangement being such that by fixing a portion of the wire to the former and causing the former to rotate, the wire is drawn on to it, against tension, to form a coil, the progressive laying of the wire turns along the former, causing the relative movement between the guiding means and the former. Wire 18 from the supply magazine 17 is pulled by the former 7 through a tension device 15 and over a guide 16, being coiled into a helix 19. As the helix builds up, the guiding member 12, 13, furnished with an arm 14 contacting a rod 4, slides along the former, driven by a motor 11, the coils closely spacing themselves. When multi-layer coils are to be wound a number of guide members 12, 13 are used. Specification 643,686 is referred to.
Patent GB-694763-A (GB)
Title: Defrosting means for refrigerating systems
Inventor: SMITH VICTOR WILLIAM
IPC: F25B47/02
Filed: 1951-09-18
Abstract: 694,763. Refrigerating. HILL & CO., Inc., C. V. Sept. 18, 1951, No. 21911/51. Class 29 The supply of heat for defrosting the evaporator 10 of a refrigerating system is controlled by a timer 24 the contacts 26 of which are connected in series with contacts 34 which open and close in response to a condition of the system in such a way as to terminate and restart the supply of heat during the time the contacts 26 are closed, so that the temperature during defrosting does not exceed a predetermined maximum. As shown, the contacts 26, when closed, energize a solenoid 28 which then opens a valve 40 to supply hot gas to the evaporator 10 from the compressor 2. The contacts 34 are actuated either by a bellows 48 responsive to pressure in the outlet pipe 18 of the evaporator or by a thermostat responsive to the temperature of the evaporator or of the refrigerated space. The bellows 48 can be adjusted by a screw 50. The control system may be applied to apparatus using electric heaters to effect defrosting. Specification 630,579 is referred to.
Patent GB-672731-A (GB)
Title: Improvements in or relating to gas burners for ovens
IPC: F23D14/10
Filed: 1949-08-24
Abstract: 672,731. Gas burners. VICARS, Ltd., T. & T., and NORMANSELL, G. Aug. 1, 1950 [Aug. 24, 1949], No. 21967/49. Class 75(i) Gas supplied to a burner tube 1, Fig. 2, passes through a slot 3 into bores 5 horizontally disposed in pairs and having their outer ends in surfaces which lie in substantially vertical planes and containing plugs of castellated, pinion, or any other multi-sided cross-section differing from the section of the bores 5 for forming small burner orifices to prevent lighting back. Alternatively multi-sided bores 5 may contain cylindrical plugs 6. The diameter of the plugs 6 may be reduced in the vicinity of the slot 3. The upper part 4 containing the bores 5 may be formed integrally with or welded to the remainder of the tube 1. The burner tube 12, Fig. 9, has an oval crosssection and diametrical perforations provided with plugs 13 of fluted or other irregular contour to provide the gas passages.
Patent GB-822927-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B61B10/02
Filed: 1956-07-16
Abstract: 822,927. Conveyers. KING Ltd., G. W. July 2, 1957 [July 16, 1956], No. 21986/56. Class 104 (2). In a conveyer trolleys 11 running on a branch track 10 are propelled by dogs 17 on reciprocating bars 16 during their forward movement to impart an intermittent motion to the trolleys, the dogs being supported for vertical displacement so that they ride over the trolleys during the rearward stroke. The bars 16 depend from spaced trolleys 13 running on an overhead track 12 and are reciprocated by a motor driving a crank and rod attached to a bar. A trolley arrested at the first station arrests the following trolley at the second station by contacting the upwardly curved end of a strip 20 connected to a hinged bracket 21 and to a bar 24 also supported by a hinged bracket 21 which bar extends to the second station. As the strip 20 lifts by contact with the first trolley a cam on the bar 24 also lifts and engages lateral rollers 26 on the dogs to lift the dogs out of driving engagement with the second trolley which is thereby arrested until the first trolley disengages the strip 20. The second trolley can similarly arrest the third trolley. Stops 27 (not shown) and 28 may be positioned on the bars 16 and 24 to prevent the trolleys from moving at the stations. The cam at the first station may be operated by any suitable means. Intermediate dogs without rollers 26 may be positioned between the dogs 17.
Patent GB-221940-A (GB)
Title: Improvements relating to casks and the like
IPC: B67D1/04
Filed: 1923-09-01
Abstract: 221,940. Scott, W. Sept. 1, 1923. Direct air-pressure apparatus, non-automatic. -In a cask &c., in which the contents are expelled by pressure introduced from an external source such as a pump a cylinder of carbon dioxide, &c., two openings at least are employed, and these are all arranged so that when on the stillage they are all submerged and leakage reduced by the swelling of the wood. The pressure is introduced through a tap 9, Figs. 1 and 3, which is T-shaped and which can be moved from the position shown on disconnection from the source of pressure with a position in which the stem lies parallel with the cask head, the tap then being closed. The tap is held by a casing 14, and a leather or other seating 12 is provided. A connection as shown in Fig. 5 may also be used. An exit tap 5 is provided for emptying the cask 12. Specifications 17292/15 and 221,096, [both in Class 21, Casks &c.], are referred to.
Patent GB-614619-A (GB)
Title: Improvements in electric tumbler switches
IPC: H01H23/12
Filed: 1946-07-24
Abstract: 614,619. Tumbler switches. ARNOLD, C. L., DOWSETT, R. W., DUFFIELD, J. F., and M. K. ELECTRIC, Ltd. July 24, 1946, No. 22098. [Class 38 (v)] The dolly 7 of a tumbler switch is pivoted at 8 and drives a cam 6 actuating a contact blade 4 against a spring 5. Above the blade 4 a ball 12 is held captive in a resilient strip 13 and is engaged by cam surfaces 6a, 6b having positioning depressions 10 corresponding with " on " and " off " positions of contacts 3, 1. A cam 6 may be arranged on either side of the dolly 7 to provide change-over switching. Specifications 532,336 and 610,490 are referred to.
Patent GB-1190983-A (GB)
Title: Planetarium System
IPC: G06G7/22
Filed: 1967-05-12
Abstract: 1,190,983. Computing for planetarium control. SPITZ LABORATORIES Inc. 12 May, 1967 [13 May, 1966 (2)], No. 22120/67. Heading G4G [Also in Division G2] A planetarium comprising a star field projector 4 having three axes of rotation, and planet projectors 5 each having a pair of reflecting mirrors 63, 65 mounted on a turntable rotatable about a vertical axis, the mirror 65 also being rotatable about a horizontal axis includes an electric analogue computer for controlling drive means associated with the projectors. The computer includes trains of electro-dynamic sine and cosine function generators and trains of hyperbolic function generators. In a sun-centred co-ordinate system the reference co-ordinates x p , y p , z p  of a planet are computed by feeding into sine/cos. generators 80, 82, 84 inputs representative of the planet's distance from the sun and angles #, i and Q (Fig. 11, and Fig. 10, not shown). The reference co-ordinates of the Earth and an observer at a general point in the Solar System are computed by similar trains of sin/cos. generators (Figs. 13 and 14). A general planet position can then be computed by summing by means of amplifiers (98x<SP>1</SP>, 98y<SP>1</SP>, 98z<SP>1</SP>, Fig. 16, not shown) the outputs from the train of Fig. 11 and the negative outputs from the train of Fig. 14. The vectors fed to sin/cos. generators 110, 112, 114, 77, 70 together with inputs #I, 90-#II, #III representative of the angular position of the star field projector result in signals Ep, Ap which control motors for varying the position of the mirrors 63, 65. A pitch, yaw and roll computing means for the star field projector includes hyperbolic function generators 336, 346 (Fig. 33). The inputs to the computing means represent the rate of pitch, roll and yaw, which inputs act via the generators, amplifiers 338, 344, 348, 354 and motors 340, 350, 356 and tachometers 342, 352, 358 to produce outputs A, H, B which form inputs for further computing elements (224, 220) (Fig. 29, not shown).
Patent GB-828870-A (GB)
Title: Improvements in or relating to skinning animal carcases
IPC: A22B5/16
Filed: 1957-07-12
Abstract: 828,870. Slaughter-houses. O'NEILLY, W. J. Oct. 7, 1958 [July 12, 1957], No. 22124/57. Class 20(1) [Also in Group VI] A turntable 7 with cradles 9A to 9D for holding a carcase in suitable position for flaying is located in an abattoir. The abattoir comprises an entrance 2, a stunning box 4 and a suspending conveyer 5 over a trough 6 to catch the blood. The carcase is then transferred to another overhead conveyer 54 where the head and foreshanks can be removed and each carcase is passed on to one of the cradles 9 where on rotation of the turntable to each station N.S.E.W. part of the skin is loosened by cutting, e.g. with tools as in Specification 609,236. The complete hide is dropped at station 15, the carcase is split at 16 and is conveyed by a conveyer 10 through a cooling booth 13 and then through a refrigerating chamber from which it exits at 3. There may be several co-axial turntables 7, one above the other.
Patent GB-1286226-A (GB)
Title: Protective package
IPC: B65D81/113
Filed: 1971-04-19
Abstract: 1286226 Moulding foamed articles with inserts PFAFF INDUSTRIEMASCHINEN GmbH 18 April 1971 [24 Feb 1970] 22165/71 Heading B5A [Also in Division B8] A mould 8 for producing a one-piece outer casing of semi-hard polyurethane foam around a sewing machine comprises a base 9, two side walls 10, 11, side wall 11 being hinged to the base, and two pairs of half walls 12 which form end walls each having a central slot (16, Fig. 4) to accommodate a plastics foil, e.g. of polyethylene placed around the article prior to insertion in the mould.
Patent GB-719293-A (GB)
Title: Improvements in or relating to supports for cameras, particularly television cameras
Inventor: JACKSON DONALD
IPC: G03B17/56
Filed: 1950-09-08
Abstract: 719,293. Mountings for cameras. PYE, Ltd. Dec. 5, 1951 [Sept. 8, 1950], No. 22214/50. Class 97(1) [Also in Group XXXVIII] A camera, e.g. a television camera, is carried by a support which also carries a seat for the camera operator, power driven means driving the seat to follow-up horizontal and/or vertical movements of the camera. The support comprises a lower portion 19 mounted for rotation about a vertical axis on a pillar 2 secured to a dolly base 55, and an upper portion 20, to which the camera 22 is secured, pivoted at 21 to the lower portion 19. The operator's seat 1 is carried on an arm 7 secured to a shaft 8 rotatably mounted in a collar 3 rotatable about the pillar 2. Vertical movement of the camera produced by rotating the upper member 20 about the pivot shaft 21 correspondingly adjusts a potentiometer 25, Fig. 3 (not shown), the track of which is fixed to a casing 26 secured to member 19, and coacts with a wiper fixed to the shaft 21 which rotates with the member 20. The potentiometer 25 forms one arm of an A.C. bridge, Fig. 5. The unbalance voltage produced by adjustment of the potentiometer 25 is amplified at 54 and drives a two phase motor 13. The motor through a worm 12 and quadrant gear 10 rotates the shaft 8 to adjust the seat 1 in the vertical direction, to follow-up the vertical movement of the camera, and at the same time adjusts a potentiometer 56 to rebalance the bridge. Horizontal movement of the camera, effected by rotating the lower support member 19, on the pillar 2, adjusts an annular potentiometer, Fig. 4 (not shown), carried by the pillar 2, through an arm 40 movable with the lower support member. This potentiometer controls a follow-up motor 17 in a manner similar to the motor 13 and drives a pinion 16, meshing with a ring gear fixed to the pillar 2, to rotate the collar 3, and with it the seat 1, to follow up the horizontal movements of the camera.
Patent GB-229720-A (GB)
Title: Methods of inserting fasteners
IPC: A43D69/04
Filed: 1923-09-04
Abstract: 229,720. Little Co., A. E., and Reed, J. H. Sept. 4, 1923. Machines using continuous wire or strip metal. -A method of inserting metallic fasteners so that they are anchored in the work without completely penetrating it, particularly suitable for attaching uppers to insoles, consists in progressively defecting the point of the fastener as it is entering the work. In apparatus described for carrying out this method staples S of the form shown in Fig. 8 are formed from wire or strip 25 which is bent over a part cylindrical anvil 26 by formers 27, one of which constitutes a movable cutter 29 co-operating with a fixed cutter 30. The formers are carried by a plunger 28 and are moved toward one another by cam surfaces 32. The completed staple is moved by a slide into a throat 15 and is driven by a plungger comprising members 16 pivoted to a plunger 17. The throat 15 has a part 19 of a width equal to the widest part of the staple prongs, and an open end 18 narrowed to the width of the staple head. When the staple is driven its prongs are continuously deflected towards one another by the narrowed opening 18, this deflection being assisted by the lateral movement of the driver members 16, which have projections 20 which engage the ends of the staple head. Specification 194,371 is referred to.
Patent GB-170422-A (GB)
Title: Improvements in and relating to the dampers of furnace flues and the like
IPC: F23L13/00
Filed: 1920-07-27
Abstract: 170,422. Ringrose, F., and Neil, J. M. July 27, 1920. Closure members.- A furnace-flue damper s or the like is sealed where it passes through the flue wall by rollers j retained in grooves in castings g secured to the wall and having inclined faces t. The grooves are closed at the ends by angleplates secured to the flue wall and secured to the castings by bolts and slots allowing of horizontal adjustment of the castings. The castings are bedded on the flue wall by means of fitting strips w and cement x.
Patent GB-332742-A (GB)
Title: Improvements relating to the manufacture of pressed nuts
IPC: B21K1/66
Filed: 1929-07-20
Abstract: 332,742. Fellows, J. July 20, 1929. Nuts.-Chamfered nut blanks are produced by shearing from a metal strip of width equal to or slightly greater than the distance between the opposite faces of the finished nut and curved on the face in contact with the die in a direction transverse to its length. The aperture in the die A tapers inwards from the shearing edge a to the edge b and then tapers out again, and the end c of the punch B is of a size to push the sheared blank past the edge b. The strip D, Fig. 4, curved transversely on its underface d, is guided in a groove e in the die. In the shearing operation the underside of the blank becomes curved in the direction of the length of the strip and as the latter is curved transversely to start with the completed blank has a part spherical or chamfered face. The blank is sized in passing through the restricted portion of the die opening, the edge b being sharpened if desired for trimming the blank. Specification 11326/06 is referred to.
Patent GB-476196-A (GB)
Title: Improvements in or relating to brassieres
IPC: A41C3/00
Filed: 1936-08-13
Abstract: 476,196. Brassieres. WILKINS, E., and WALTHER, D. R. P. Aug. 13, 1936, No. 22362. [Class 141] A brassiere of the kind comprising a pair of breast - receiving pockets, a short length of fabric, preferably elastic, connecting the outer ends of the pockets, and a pair of shoulder straps each extending from the apex of one pocket to the outer end of the other, or the same pocket, the straps either being crossed at the back or arranged in an equivalent manner, is characterized in that the rear ends of the shoulder straps are attached to the corners of the outer ends of the pockets in alignment with the lower edges thereof, while the ends of the short length of fabric are attached to the remaining corners of the outer ends of the pockets in alignment with the upper edges thereof. In the form shown, the outer end of each pocket 1, 2 is divided into two tails 9, 9a and 10, 10a, the free ends of the tails 9, 10 being connected to a piece of elastic fabric or the like 7, and the free ends of the tails 9a, 10a being connected to the ends of the shoulder straps 6, 6a. Each breast pocket is provided beneath the armpit with a dart or the like 13. In a modification, the shoulder straps are threaded through a ring or the like at the rear of the wearer to produce the effect of crossed straps. In another modification, the outer end of each pocket is formed with a double fold, the parts of which are stitched together to provide a rearwardly widening web connecting portions corresponding to the tails referred to above. In a further modification, the outer end of each pocket is merely folded once upon itself either inwardly or outwardly, and the parts of the fold stitched together to provide portions corresponding to the said tails. In a still further modification, the outer ends of the pockets are each tapered to a point to which is attached one end of one of the shoulder straps, and one end of the length of fabric connecting the outer ends of the breast pockets. Specification 471,414 is referred to.
Patent GB-985851-A (GB)
Title: Electric dry shavers
IPC: B26B19/28
Filed: 1963-06-05
Abstract: 985,851. Dry shavers. SPERRY RAND CORPORATION. June 5, 1963 [June 18, 1962], No. 22376/63. Addition to 904,810. Heading B4B. The dry shaver of the parent Specification is modified in that an end bell 46 for the drive motor 35 has legs 52 provided with (a) recesses 54 which engage projections 55 on the inner surface of the shaver casing and (b) bearings 57 formed with guide ribs 58 which support the leg portions of the drive member for the inner cutters 28 of the cutter head assembly 22. The bell 46 has lugs 45 which engage apertures 44 in the motor frame and an annulus 48 which receives the bearing 49 of motor shaft 51. Specification 798,757 also is referred to.
Patent GB-935307-A (GB)
Title: Improvements in or relating to methods of shaping solid semi-conductor crystals
IPC: H01L21/16
Filed: 1961-06-21
Abstract: A solid semi-conductor material (e.g. silicon or germanium) is shaped (cut, perforated or hollowed) by means of a gas jet directed thereon, the gas and/or the crystal being heated to a temperature below the melting point of the crystal, said temperature and the composition and pressure of the gas jet being such that a compound is formed between the gas and the crystal, which compound evaporates at said temperature, and the application zone of the crystal being exposed to visible or infra-red light. The gas may be chlorine, bromine, fluorine, hydrogen chloride, oxygen or ozone. The operation is effected in a vessel which is continuously evacuated.  The nozzle width is between 5 and 100m .ALSO:A solid semi-conductor material (e.g. silicon or germanium) is shaped (cut, perforated or hollowed) by means of a gas jet directed thereon, the gas and/or the crystal being heated to a temperature below the melting-point of the crystal, said temperature and the composition and pressure of the gas jet being such that a compound is formed between the gas and the crystal, which compound evaporates at said temperature, and the application zone of the crystal being exposed to visible or infra-red light. The gas may be chlorine, bromine, fluorine, hydrogen chloride, oxygen or ozone.  The operation is effected in a vessel which is continuously evacuated.  The nozzle width is between 5 and 100m .
Patent GB-301409-A (GB)
Title: Improvements in and relating to draught excluders for doors adapted for use also as brglar alarms
IPC: E06B7/20
Filed: 1927-08-29
Abstract: 301,409. Chadwick, T. Aug. 29, 1927. Burglar and like alarms.-A burglar alarm is actuated by a hinged-flap draught excluder on the bottom edge of a door and comprises an electric circuit adapted to be closed by the contacts H, H<1> in the jamb and excluder strip as the door is opened.
Patent GB-711620-A (GB)
Title: Improvements in or relating to bearing assemblies
Inventor: LOVE PHIL PRINCE
IPC: F16C33/12
Filed: 1951-09-28
Abstract: A method of incorporating poly-tetra-fluoroethylene into the surface of a bearing element comprises providing the surface with a superposed layer of sintered porous metal or, alternatively, phosphating or anodic etching said surface, degreasing this prepared surface, and then immersing it in an aqueous suspension of poly-tetra-fluoro-ethylene, preferably containing about 55 per cent. solids.  The immersion is carried out in a vessel in a vacuum chamber which is alternately exhausted and returned to atmospheric pressure. The element is then removed and dried in a warm current of air at about 50 DEG  C. and finally baked at about 350 DEG C. for 2 minutes. Alternatively the poly-tetra-fluoroethylene may be pressed into the pores or crevices at 350 DEG C.  Solid lubricant, for example molybdenum disulphide, may be incorporated in the co-operating element of the bearing by first phosphating to produce a receptive surface, degreasing, and then applying a paste consisting of 50 per cent. molybdenum disulphide and 50 per cent. vegetable syrup such as a sugar syrup.  The paste is heated to about 80 DEG C. and painted on to the porous metal surface and then heated to a temperature of 300 DEG C. which is maintained for a suitable period.  The metal surface is then scraped and the process repeated until a sufficiently thick coating is obtained.  Alternatively the molybdenum disulphide may be applied by rubbing into the pores or by applying it in suspension under the action of alternate vacuum and atmospheric pressure.ALSO:A bearing surface incorporating a solid lubricant such as molybdenum disulphide or tungsten disulphide is produced by providing a surface of the metal molybdenum or tungsten, preferably roughened or minutely creviced, and converting the surface of the metal to disulphide by suitable heat treatment in the presence of a sulphiding agent, such as hydrogen sulphide.  A suitable porous or creviced surface can be produced by conventional sintering or metal spraying techniques or by phosphating and after sulphiding the surface may be burnished to smooth and densify the surface coating of disulphide.