baber/WOPTO huggingface dataset:
Patent GB-1301260-A (GB)
Title: Improvements in and relating to machine tools
Inventor: WYLES RAYMOND ALLEN
IPC: B23Q15/00
Filed: 1969-11-22
Abstract: 1301260 Machine tool details W O M JONES 22 Nov 1969 29407/72 Divided out of 1291561 Addition to 1291561 Heading B3B A machine tool has a stop device for controlling the stroke and rate of feed of an assembly 20, e.g. a tailstock, headstock, or saddle and the speed of rotation of a chuck or spindle, the device comprising a drum 10 having a number of keys 27 and a flange 24 perpendicular to the keys a removable setting strip 12 on each key and held against the flange, a stop block 14 adjustably mounted on a strip 12 so as to engage and stop assembly 20, the position of the block 14 having been set to a predetermined position relative to the end of the strip 12 and means 44 for rotatably indexing drum 10. Each key is secured on the drum by screws 26. A small air bleed valve 112 is provided in a block 74 which is adapted to actuate a valve controlling the feed rate so as to prevent damage to the stop mechanism. Chamfered block 16 slides along the strip, is secured in the required position by screws 68, and is adapted to control the limit of quick traverse by engagement with a roller 80. The position of block 64 and stops 30, 32 is checked and preset remote from the machine tool. The drum is indexed by a pawl-and-ratchet 44. Drum 10 is connected to reference flange 24 by a sleeve 25, and the indexing pawl mechanism 44 is applied to the drum at the left hand end as shown. Each strip 12 comprises a rack which is located and secured on a key 27, and each stop block 14 is formed with rack teeth adapted to co-operate with the rack teeth on strips 12. A block 14 is placed on strip 12 as close to the desired position as the teeth permit, and is locked by a screw 68, fine adjustment is then effected by a screw 56. A feed start block 16 can be positioned on each strip which actuates a roller 80 for controlling the limit of quick traverse. Buttons 30, 32, on the strips control the valves 94, 96, governing the tool feed, and rotational speed of the chuck or spindle of the machine tool.
Patent GB-1007368-A (GB)
Title: A spirit level protractor
IPC: G01F23/00
Filed: 1963-07-25
Abstract: 1,007,368. Levels. H. E. WYATT. May 26, 1964 [July 25,1963], No. 29506/63. Heading.G1F A liquid level protractor comprises a flat rigid rectangular body having a circular transparent area 5 within its edges, furnished on both faces with a circular graduated angular degree scale 6 with diametral hair lines 7 crossing at right angles to one another and each being parallel to a pair of opposite edges of the body, a hollow chamber being visible through the area 5 and containing a liquid 8 which exactly half-fills the hollow chamber. The chamber is formed between two flat plates of transparent plastics material e.g. of Perspex., (Registered Trade Mark), the plates being in rectangular opaque rings. The liquid 8 is preferably coloured. Alternatively the hollow chamber may be formed as a well in the body enclosed by one plate of transparent material. The diameter of the hollow chamber may be greater than that of the scale 6 to allow for meniscus effects, and if desired the hollow chamber may be square.
Patent GB-1376289-A (GB)
Title: Constant-velocity universal joints
IPC: F16D3/20
Filed: 1973-06-21
Abstract: 1376289 Universal joints GENERAL MOTORS CORP 21 June 1973 [12 July 1972] 29507/73 Heading F2U A cage 30, 230; for the torque transmitting balls 32 of a homokinetic universal joint 12 comprising outer and inner members 14, 20 with axial grooves 16, 26 for the balls 32; comprises two axially spaced end rings 238, 240 connected by two sets to define ball pockets, each of at least three bars 242a, 242b, of uniform thickness, the bars 242a of one set defining a part-spherical outer surface 242c, extending on each bar, across the bisector plane 250, the bars 240b of the other set defining a partspherical inner surface 242d, extending on each bar across the plane 250, the surfaces 242c and 242d have centres 256, 254 respectively on the cage axis 248 and equidistant from and on opposite sides of the plane 250. The surface 242c may merge with a frusto-conical surface at one end limiting joint articulation. The ball pockets may be circumferentially elongated and axially limit the balls by tabs 245, 247 or dimples (347), Fig. 10 (not shown), or by straight edges of the end rings.
Patent GB-891712-A (GB)
Title: Improvements in and relating to combined plastic and metallic structures
Inventor: GREEN PHILIP RICHARD
IPC: H01Q15/14
Filed: 1957-09-20
Abstract: 891,712. Moulding radar reflectors &c. ENGLISH ELECTRIC CO. Ltd. Sept. 16, 1958 [Sept. 20, 1957], No. 29607/57. Class 87(2). [Also in Group XL(c)] A concave wire-reinforced plastic structure such as a radar aerial or reflector is made by applying an epoxy resin which is tacky for a limited period to the convex surface 6 of a mould 5, causing relative straight line motion between the mould and a frame 7 in which a number of spaced parallel conductor wires 12 are arranged under tension by means of pulleys 9 and weights 13 so that the wires are located on the resin without lateral movement, and completing the structure with further epoxy resin or with a resin which unites therewith. The structure may be reinforced with glass-fibres and a wax parting agent may be used on the surface 6.
Patent GB-504400-A (GB)
Title: Improvements relating to the separation and feeding of the filaments of yarns or bundles of continuous filaments
IPC: B65H54/00
Filed: 1937-10-29
Abstract: 504,400. Unwinding bobbins; separ. ating and stapling continuous filaments. POOL, W. Oct. 29, 1937, No. 29633. Drawings to Specification. [Classes 120 (ii) and 120 (iii)] A method of and apparatus for separating and feeding continuous filaments from a bundle comprises drawing the bundle over and in contact with a roller having a surface of material which is removed in the electrostatic series from the material of the filaments, and rotating the roller with a peripheral speed different in magnitude and/or direction from the speed of the filaments so as to impart to the filaments a charge of static electricity and to cause them to separate from one another; the separated filaments may be then cut into staple lengths. The filaments may be traversed laterally to and fro across the roller and the bundle may be drawn over-end from a stationary flanged bobbin or the like by means of feed rollers or from a rotating bobbin or it may be fed positively to the surface at a predetermined rate and be drawn in a non- positive manner over and past the surface. The apparatus is described in Specification 504,399, which is referred to. Specifications 484,190, 489,273, and 504,401, also are referred to.
Patent GB-1126865-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/06
Filed: 1967-06-27
Abstract: 1,126,865. Piston rings. BAMSEY CORP. 27 June, 1967 [9 Feb., 1967], No. 29665/67. Heading F2T. An expander-spacer ring of channel section for piston oil rings 11, 12 comprises axiallyspaced oil ring support segments 26, 29 connected together by circumferentially-spaced legs 24 around the inner periphery, fingers 38 being provided for preventing an oil ring from being assembled in the channel portion by mistake. Preferably, the fingers extend alternately from segments in opposite rows. In another embodiment, the cuts 39 in the segments are made radially and the fingers bent downwardly towards the centre of the bottom row of segments. In a further embodiment, no cut 39 is made and the fingers are bent from the full width of the segment.
Patent GB-660541-A (GB)
Title: Improved method and means for continuously growing crystals
IPC: C30B7/00
Filed: 1949-11-21
Abstract: <PICT:0660541/III/1> Crystals are grown from seeds 9 immersed in a mother solution 1 in a closed container 2 by condensing vapour from the solution and allowing the condensate to return to the mother solution after dissolving more solute.  As shown the vapour condenses on the surface of a tube 12 depending into the container and cooled by a cooling liquid in pipe 13.  A basket 16 containing solute is suspended below the tube, condensate dripping through the solute back to the solution 1.  The crystals 9 are agitated by a vertical or rotary motion.  The container is maintained at constant temperature by the thermostatically controlled heating jacket 3.
Patent GB-1382379-A (GB)
Title: Gaming machines
IPC: A63F5/04
Filed: 1973-06-22
Abstract: 1382379 Gaming machines BELL-FRUIT MFG CO Ltd 22 June 1973 29713/73 Heading A6H [Also in Division G4]  In a gaming machine comprising a set, e.g. three as shown, of rotatable discs R each of which is spun and stopped at random by a latch L at one of a plurality of stop positions during each game to determine one or more symbols in a combination displayed to the player, there is associated with each disc a binary counter C which cyclically changes its state in step with the rotation of the disc R and which assumes a corresponding state for each of the stop positions, the input pulses of the counter being derived from sensing means including a light source F, a disc B fast with the disc R and provided with a series of holes equal in number to the number of stop positions of the disc R, and two photocells P1, P2, the latter providing one reset pulse for the counter for each complete revolution of the disc R. The outputs from each counter C are converted into signals characteristic of the stop positions by a binary/decimal decoder E, and logic circuitry including NOR gates G analyses the signals from all the counters to produce win signals when the stop positions correspond to a prize winning combination.
Patent GB-328000-A (GB)
Title: Improvements in or relating to transmission gearing
IPC: F16H33/10
Filed: 1928-10-15
Abstract: 328,000. Bullock, H. W., and Bridgland, C. W. S. Oct. 15, 1928. Variable-speed epicyclic gearing.- In epicyclic gearing of the kind in which the ratio varies automatically with the load, due to the action on the planet wheels of inertial and gyroscopic resistance, supplementary fluid or solid frictional resistance is provided. A driven shaft 2, Fig. 1 (Prov.), carries a sun bevel wheel 5 meshing with bevel pinions 6 revoluble on opposed or equiangularly-spaced arms 7 rigid with the driving-shaft 1. Splined on the boss 8 of each pinion are a cup 15 and friction discs 9 alternating with discs 10 slidable on studs 11 on a plate 12 fast on the spindle 7, the cup 15 being screwed to a drum 16 containing oil or other viscous fluid. Each drum 16 is formed with curved radial blades 18 coacting with like blades 17 fixed to the spindle 7 to produce turbulence in the oil &c., and thus, in conjunction with the gyroscopic effect of the drum 16, resist the rotation of the pinions 6 and start the drive. Centrifugal force on the parts 10, 15, 16, 18 also presses the friction discs together and may produce a solid lock at high speeds. In a modification, Fig. 1 (Comp.), the pinions 6 have rotary and slight axial freedom on the preferably bushed spindles 7 extending from radial arms 48 and carry conical brake elements 32 adapted to coact with elements 34 fixed to the spindles 7. Each member 32 carries a massive rim 33 and is pressed by a spring 36 acting through a ball race 37. Initial drive to the sun bevel 5 is effected by gyroscopic action, but -when centrifugal force overcomes the springs 36, the brakes 32, 34 engage under a pressure dependent on the speed. The pinions 6 may be axially immovable and the rims 33 &c. slidable thereon. The gear-ratio of the wheels 5, 6 should lie between 4 : 1 and 6 : 1. The device is preferably enclosed in a divided casing 40, 41 with an access door 42, and may be used in conjunction with an ordinary gear-box.
Patent GB-895773-A (GB)
Title: Improvements in and relating to colour television systems
Inventor: GRAHAM REGINALD
IPC: H04N9/24
Filed: 1958-09-17
Abstract: 895,773. Colour television tubes. SYLVANIA-THORN COLOUR TELEVISION LABORATORIES Ltd. Oct. 19, 1959 [Sept. 17, 1958], No. 29784/58. Class 39(1). In a colour television receiver tube having a multi-colour strip screen, the screen includes a layer of photo-emissive material selectively responsive only to certain of the strips which act as indexing strips. The emitted electrons pass to a collecting coating on the wall of the tube and the indexing signal is derived directly from this coating or from an aluminium coating on the screen, or indirectly from the coating on the tube wall by coupling to an exterior overlying coating. In Fig. 1 the screen includes colour strips R, G, B, guard strips A of a phosphor which does not emit light, a transparent aluminium layer 11 and the photo-emissive layer 12. The exciting radiation for the photo-emissive layer may be the light emitted by one of the colour strips, or a phosphor emitting the exciting radiation may be mixed with the phosphor of certain of the strips R, G, B or A. The indexing strips may emit ultra-violet radiation, the photoemissive layer being responsive only to this radiation. Alternatively, or in addition, a colour filter passing only the desired radiation may be provided between the phosphor strips and the photo-emissive layer. The colour strips may be of phosphors having a long afterglow compared with the indexing strips so that the colour strips produce a negligible effect. The indexing strips may be spaced by distances not equal to those between the groups of colour strips, as described in Specification 895,772, so that the frequencies generated by scanning the colour and indexing strips respectively are different. In Fig. 3 a layer 11<SP>1</SP> of a material, e.g. aluminium, opaque to the light emitted by the colour strips is applied over the colour phosphor strips R, G, B. The indexing strips 1 are applied over the aluminium layer 11<SP>1</SP> and finally the photo-emissive layer 12 is applied. The photo-emissive layer may be continuous or applied in strips over the indexing strips.
Patent GB-197267-A (GB)
Title: Improvements in demountable rims for vehicle wheels
IPC: B60B25/14
Filed: 1922-11-01
Abstract: 197,267. Sowden, C. N. Nov. 1,1922. Tyre attachments to rims.- A divisible rim comprises two flanged rings 1, 2 formed with alternating notches 3, the intervening edge portions being formed with depressions 5 so that the rim parts overlap when assembled. The parts 5 are formed with flanges 6 between which a split locking-ring 8 is sprung.
Patent GB-157879-A (GB)
Title: Improvements in methods for the production of barium chloride
IPC: C01F11/26
Filed: 1920-10-22
Abstract: 157,879. Mathieson Alkali Works, Inc., (Assignees of MacMahon, J. H.). Jan. 20, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Ammonia and ammonium sulphide are obtained in the preparation of barium chloride from ammonium chloride according to the following process. The ammonium chloride may advantageously be obtained from the " feeder liquor " resulting from the ammonia-soda process by employing the plant shown in the diagram. In the still A, supplied with " feeder liquor " at the top, the ammonium bicarbonate is driven off by the exhaust steam led in at the bottom, and the remaining solution containing ammonium chloride and sodium chloride is passed to the evaporator A<2>. Sodium chloride is deposited in the latter and is removed while the residual ammonium chloride solution is purified by recrystallization in tanks A<3>, A<4> and is conveyed to the still B. Clear barium sulphide solution obtained by lixiviation of black ash in tanks B<1>, is also conveyed to the still B and the resulting liquor, after being freed from ammonium sulphide by the passage of exhaust steam, is led to the tank B<3> and thence to the evaporator B<4> and crystallizing pan B<5> in which barium chloride is deposited. Ammonia may be recovered from the ammonium sulphide evolved from the still B by absorbing the vapours in caustic soda in the still C and passing steam. The ammonia is utilized in the ammonia-soda process while the solution of sodium sulphide which is also produced is concentrated to 50 per cent strength, by evaporation. Alternatively the barium sulphide may be mixed with the " feeder liquor " before the sodium chloride is separated, and the sodium chloride separated from the barium chloride at a subsequent stage.
Patent GB-700658-A (GB)
Title: Method of producing shaped metal bodies by the hot pressing of metal powders
IPC: B22F3/14
Filed: 1951-12-20
Abstract: 700,658. Powder metallurgy. METRO-CUTANIT, Ltd. Dec. 20, 1951 [June 26, 1951], No. 29901/51. Class 83 (4) In a method of producing metal bodies by hot pressing metal powders at between 100‹ and 800‹ C., a protective atmosphere is obtained by mixing the metal powders with substances which give off neutral or reducing gases at or below the pressing temperature and then applying the pressure immediately after all the gas has been given off. The substances to be mixed with the metal powders may leave a solid residue, for example, hydrides, or may be completely transformed into gas or vapour, for example, ammonium carbonate, methyl alcohol and other volatile organic reducing agents. Copper powder mixed with methyl alcohol is loaded into a die heated to 400‹ C. and after the complete evolution of the vapour, in 10 to 20 seconds, is pressed at 5 tons per square cm. In another example, to a mixture of silver and nickel powders is added 4 per cent of ammonium carbonate and the mixture loaded into a die heated to 350‹ C.
Patent GB-1474649-A (GB)
Title: Klystron-accelerator system
IPC: H05H7/02
Filed: 1975-07-17
Abstract: 1474649 Particle accelerators ATOMIC ENERGY OF CANADA Ltd 17 July 1975 [5 Nov 1974] 30029/75 Heading H1D A coupled-cavity particle accelerator 3 is energized by a klystron oscillator 2 the output cavity 5 of which is cavity coupled to the accelerator to form a part of the latter. For a travelling-wave accelerator, the cavity 5 is coupled directly to the accelerator structure. For a standing-wave accelerator, as shown, the accelerator, is divided into two sections 4 and 4<SP>1</SP>, coupled to the klystron cavity by a pair of coupling cavities 6 and 6<SP>1</SP>, respectively. The klystron and accelerator form a continuous evacuated enclosure.
Patent GB-958675-A (GB)
Title: Clinching apparatus
IPC: B21D39/02
Filed: 1960-08-31
Abstract: 958,675. Seaming. BRITISH FEDERAL WELDER & MACHINE CO. Ltd., and T. F. TRIBE. Aug. 16, 1961 [Aug. 31, 1960], No. 30076/60. Heading B3J. Apparatus for clinching the upstanding marginal flange of a curved panel over the marginal edge of another panel has a clinching member carried by a parallelogram linkage for movement substantially normal to the surface of the panels. A flange 4 on an outer panel 1 resting on a bed 2 is partially bent over the margin of an inner panel 3 by a member moved in the direction 5. A member 6 carried by parallel links 8 is then moved down by an hydraulic jack to complete the folding over and press or clinch the bent-over flange. The axes y of the links 8, on completion of the clinching are inclined a tangent X which touches the curved panel 1 at T, at an angle A not greater than 12 degrees and is preferably 5 degrees. The links 8 may be parallel to the tangent x or their axes converge to intersect inwardly of the panels from the point T or outwardly therefrom, the angle A not exceeding 12 degrees and being preferably 5 degrees. Specifications 958,671 and 958,673 are referred to.
Patent GB-781170-A (GB)
Title: Improvements in belting
Inventor: LORD WILFRID
IPC: D03D3/00
Filed: 1953-10-31
Abstract: 781,170. Belting. DUNLOP RUBBER CO., Ltd. Oct. 26, 1954 [Oct. 31, 1953], No. 30130/53. Drawings to Specification. Class 140. [Also in Group IX] In belting comprising woven fabric impregnated and coated with an elastomeric material, the fabric consists of a plurality of layers of weft thread interwoven with warp threads all of the same interlacing pattern. The elastomeric material may be vulcanized natural or synthetic rubber or a plasticized polyvinyl compound, e.g. polyvinyl chloride, or a copolymer of vinyl chloride with vinylidene chloride and/or vinyl acetate. The elastomeric material may be applied by spreading or by calendering on a friction calender. A number of weaves are illustrated in the drawings.
Patent GB-1400735-A (GB)
Title: Apparatus for a toy building
IPC: A63H33/04
Filed: 1972-06-27
Abstract: 1400735 Structural elements; stud-andsocket fasteners PLAYART LTD 27 June 1972 30150/72 Headings E1K and E2B [Also in Divisions A6 and F2] A rod-like frame element 18, Fig 1, in a toy construction set for assembly into a doll's house comprises two angle sections 22, 24 forming a pair of mutually perpendicular slots, the frame element having a generally arrowshaped cross-section with a head and tail 32, 34, Fig 2. The lower end of the frame element 18 has transverse notches 42 for engagement by a pivoted latch 30 beneath a doll's house base 2 when the element is inserted through a slot 20. The latch 30 is of T-shape, and turns about a pivot 36, to engage in one of its arms 38 and its tail 40 in the two notches 42. Above the notches 42 are second notches 44, for engagement by lugs 46 at the bottoms of wall panels 4, 6, 8. Axial slots 48 at the top ends of the frame elements receive lugs 52 on the wall panels 4, &c. In the form shown, a doll's house has a front and two side walls 4, 6, 8 and the rear wall is omitted: alternatively, a rear wall may also be provided. Following erection of the frame rod elements 18 upon the base 2, together with the side and rear walls, an internal floor partition 14 is slidden into place from the rear, so that it forms the first floor of the doll's house, with its corners 56 resting upon flanges 58 half-way along the frame elements. A vertical partition 16 is then slidden into a slot 60 extending half-way across the floor partition until a coacting slot 62 is received between ridges 64 on the floor partition. Roof panels 10, 12 are placed on top of the side walls to align holes 72 in end flanges 68 with holes 74 at the top of the wall panels 4, &c. Finally studs 82 on lock bars 80 are inserted through the aligned holes 72, 74 to secure the roof panels 10, 12 in place.
Patent GB-1099589-A (GB)
Title: Improvements in loading devices for heat treating furnaces
IPC: C21D1/74
Filed: 1966-07-05
Abstract: 1,099,589. Charging heat treatment furnaces. ILLINOIS NATIONAL BANK & TRUST CO. July 5, 1966 [Aug. 18, 1965], No. 30184/66. Heading F4B. Apparatus for charging a continuous heat treatment furnace 12 comprises a hopper 34 with a sliding door 41 feeding a shoot 37 attached to a pair of shaker trays 30 with corrugated bores extending through the furnace, said shoot and trays being reciprocated by a pneumatic motor. The end of hopper 34 forms a preheating vestibule 15 with the adjacent end of the furnace casing 16, and door 41 is reciprocated at regular intervals by pneumatic motor 51 feeding workpieces on to the shoot 37. A wedge-shaped baffle 59 on the latter distributes said workpieces evenly on to trays 30. The door 41 slides in L-shaped ways 42 biased against a seal (49). Fig. 4 (not shown), between the bottom wall 39 of the hopper and the door. A neutral or inert atmosphere may be preserved in the furnace 12.