baber/WOPTO huggingface dataset:
Patent GB-619226-A (GB)
Title: Improvements in or relating to variable-ratio power transmission apparatus
IPC: F16H37/04
Filed: 1946-04-17
Abstract: 619,226. Change-speed gear; friction and positive clutches. HOBBS TRANSMISSION, Ltd., and HOBBS, H. F. April 17, 1946, No. 11847. [Class 80 (ii)] Relates to a change-speed gear of the kind (e.g. as described in Specification 549,988) wherein a pair of hydraulically-actuated nested friction disc-clutches 17, 18, in a driving drum 10, drive selectively or together a planetcarrier 25 and sun 20 of an epicyclic train the third element, a ring-gear 22, of which is fast with the final driven shaft 19, to which the sun 20 can also be drivingly connected through wheels 35, 36, a counter-shaft 37 and a combined sliding-wheel and dog-clutch 33 splined on the driven shaft, whereby in some ratios a simultaneous differential drive is imparted to the driven shaft 19 both directly and through the countershaft. According to this invention a hydraulically-operated disc-brake 30 can be applied to the sun 20, which, by engagement of the disc-clutch 17 and disengagement of the dog-clutch 33, produces overdrive, during which the countershaft is also held stationary by the brake. The two lowest speeds are produced by sliding the dog-clutch wheel 33 into mesh with a countershaft-wheel 47, first speed being by engaging the disc-clutch 18 alone to drive through the countershaft-wheel 47, and second by engaging the disc-clutch 17 alone for a differential drive both direct and through the same countershaft-wheel 47. By meshing an idler, not shown, with the wheels 33, 47, two reversed speeds are obtained in the same manner. With the dog-clutch wheel 33 slid to the left to clutch the wheel 39 to the driven shaft, two higher reduced speeds are obtained, first by engaging the disc-clutch 18 alone to drive through the countershaft-pairs 35, 36 and 38, 39; second by engaging the discclutch 17 alone for a differential drive both direct and through the same countershaft pair. Disengaging the dog-clutch 33 and engaging the disc-clutches 17, 18 together, locks the epicyclic train solid for direct-drive, which, with the overdrive above described, makes six forward and two reverse ratios. A coned balkring 42, Fig. 3, for the dog-clutch, has its teeth cut thin at the tops and the inner ends of the teeth 28 of the sliding dog 33 are cut away for a short distance as at 45 to provide circumferential balking clearance. The disc-clutches 17, 18 and brake 30 are operated by diaphragms 11, the clutches being disengaged by common springs 15. Control is as described in Specification 619,234.
Patent GB-542330-A (GB)
Title: Improvements in or relating to the recovery of precious metals lost during the catalytic conversion of gases
IPC: C22B11/02
Filed: 1940-07-19
Abstract: 542,330. Recovering catalysts. BAKER & CO., Inc., and HERCULES POWDER CO. July 19, 1940, No. 11925. Convention date, Aug. 12, 1939. Addition to 519,082. [Class 1 (i)] Precious metal catalysts used in such reactions as ammonia oxidation are recovered from the reacted gases by passing these while still at a temperature above the condensation point through a conglomerate mass of electrically conductive material. Suitable masses are composed of metal wool, e.g. of stainless steel, monel, or nickel. The catalyst may be recovered from the filter mass by dissolving the latter in an acid in which the precious metal is insoluble.
Patent GB-1009673-A (GB)
Title: Improvements relating to jig washers
IPC: B03B5/24
Filed: 1964-03-20
Abstract: 1,009,673. Jig washer. STAMICARBON N.V. March 20, 1964 [March 26, 1963], No. 11925/64. Heading B2H. A jig washer comprises independent air inlet and exhaust valves 18, 20 for supplying and discharging air to and from one. or more air chambers 16 disposed under a screen plate 4 (or 4<SP>1</SP>), the mechanism for controlling the valves including means by which the exhaust valves can be held closed during an initial period following the starting of the jig so as quickly to restore the liquid levels in the air chambers. During idle periods of the jig, the liquid rises up through the air distributer pipe 17 to the level N and the starting procedure only allows operation of the inlet valves. The cycle of valve operations is governed by a cam shaft 23 driven by a motor 22, each cam 24 actuating a microswitch 25 incorporated in an electrical circuit for operating a valve arrangement 30, 31 which controls compressed air to and from a piston 34 mounted on the stem of the air valve 18 (or 20). When the jig is restarted after an idle period a preferably manually-operated push-button 28, which is incorporated in the electrical circuits for the exhaust valves 20, is pressed to maintain the valve in its closed position. Raw coal fed through an inlet 6 is separated on the screens 4, 4<SP>1</SP>, the shale and the middlings discharging respectively through float-controlled flap-valves 8, 12 and the clean coal discharging over a weir 14 into a shoot 15.
Patent GB-107292-A (GB)
Title: Improvements in Method and Machine for Grinding Rolls and Balls.
Inventor: HEIM LEWIS RASMUS
IPC: B24B11/06
Filed: 1916-08-23
Abstract: 107,292. Heim, L. R. Aug. 23, 1916. Disk apparatus.-Rollers and balls are ground between the opposing faces of a pair of disks 10, 11 which rotate on axes inclined to each other in a plane inclined to the vertical. The upper disk 10 is the grinding-disk; it is driven at a high speed in one direction; the lower disk 11, driven at a low speed in the opposite direction, serves to hold the rollers up to the grinding-disk. The disks, or one of them, have bevelled working faces; the inclination of their axes to each other causes them to diverge from each other in plan, Fig. 5, so that, on one side of a vertical diameter, the bevel faces form a parallel grinding-channel from the periphery inwards; whereas on the other side a free space is provided for the delivery of the treated rollers. The rollers are fed upon the outer end of a guide-bar 12 which is clamped at the required inclination on a post 42 that is adjustable vertically and laterally; a discharge shoot 46 is secured to the inner end of the bar. The spindles of the disks are each carried in bearings on a slide which is adjustable on an angularlyadjustable plate. The slide of the grinding-disk spindle is provided with a rack in gear with a pinion, the spindle 22 of which carries a handle and an arm connected to a spring 26. The disks are enclosed in a casing 14 through which a water pipe may be introduced. The upper edge of the guide-bar is fitted with a wearing-piece having a number of faces which may be used in succession.
Patent GB-1061071-A (GB)
Title: Improvements in or relating to mine roof supports
Inventor: POLLARD THOMAS
IPC: E21D23/00
Filed: 1964-03-20
Abstract: 1,061,071. Advancing mine-roof supports. GULLICK Ltd. Feb. 4, 1965 [March 20, 1964], No. 11979/64. Heading E1E. In an advancing mine-roof support comprising at least one rear prop 11 and at least one forward prop 12 articulatedly mounted on a common base 10, the forward prop or props are tilted as shown. Each prop assembly 11, 12 is provided with a cantilever extension 21 which is individually and manually set by a wedge 22 or jointly set by a jack 23, 24 and link mechanism 25. A telescopic shield 28, 29, 31 is carried by the rear part of the support being secured to the base 10 and articulated to the roof-bar structure by a pin and slot connection 30. A jack 32 is provided to compensate for roof convergence when the support is set.
Patent GB-611115-A (GB)
Title: An improved toggle lever more especially designed for the releasing of automatic electric switches
IPC: H01H71/50
Filed: 1946-04-18
Abstract: 611,115. Toggle linkages. LANDIS & GYR SOC. ANON. April 18, 1946, No. 12080. Convention date, May 3, 1945. [Class 80 (iii)] [Also in Group XXXVII] A toggle lever, more particularly for releasing automatic installation switches. is held locked in its extended position by a bolt 7 guided on the pivot axes 1, 2 of the level arms 3, 4 respectively, the pivot shafts 1, 2 engaging in longitudinal slots 8 in the bolt 7. The bolt 7 is formed with a recess 9 which engages the middle pivot shaft 5 when the lever is extended nearly up to its dead point to hold it locked. To break the toggle, a force P is applied to one of the surfaces 11, 12, 13 of the bolt 7 against a spring 14, and the levers 3, 4 bend under the action of forces indicated by the arrow P<1>. On extending the arms, a curved surface 10 of the bolt guides the shaft 5 into the seat 9. The levers 3, 4 are formed as U-shaped members with the bolt 7 between them.
Patent GB-240089-A (GB)
Title: Improvements in apparatus for ejecting fire extinguishing and other liquids from containers
IPC: A62C13/74
Filed: 1925-05-09
Abstract: 240,089. Graham, H. B. May 9, 1925. Direct gas apparatus, non-automatic.-A fireextinguisher or like apparatus for ejecting liquids, of the kind including a bulb of compressed or liquified gas adapted to be pierced, in order that the gas may eject liquid from a container, by depressing a plunger, is provided with means for simultaneously locking the plunger and controlling a delivery port for the liquid. The gas bulb 22 is pierced by the point 5 of a spring-held plunger 4, and the extinguishing or other medium passes from the container 3 by way of a pipe 11, port 10, chamber 12 and nozzle 21. The port 10 is controlled by a screwdown valve 8 operated by a lever 15. When the valve 8 is closed lugs 18 on the lever 15 engage between the knob 6 of the plunger 4 and the head or cap of the container, and a hooked extension of the lever partly encircles the sleeve 7 of the plunger 4, thus locking the plunger against inward movement.
Patent GB-1458340-A (GB)
Title: Ixo
IPC: C12P1/04
Filed: 1975-03-24
Abstract: 1458340 Antibiotic compositions UPJOHN CO 24 March 1975 [17 April 1974] 12105/75 Heading A5B [Also in Division C2] Antibiotic compositions comprise a compound U43795 of formula I a salt, hydrate, zwitterion or acyl derivative thereof and a carrier therefor optionally with a further antimicrobial compound which if acid or base may form a salt with U43795.
Patent GB-124363-A (GB)
Title: Improvements in or relating to Aircraft Controls.
Inventor: WALSH FRANK FORD PEREGRINE
IPC: G09B19/16
Filed: 1918-07-26
Abstract: 124,363. Walsh, F. F. P., (Swan, P.). July 26, 1918. Steering and balancing.-The secondary control lever of an aeroplane fitted with dual control is made in two parts connected by a ball joint but normally held rigidly in alinement by a sliding bolt, means controlled by the pilot being provided for withdrawing the bolt into one of the parts to render the secondary lever inoperative. Fig. 3 shows the upper and lower parts a, a<1> of the secondary lever connected together by a ball b<1> and socket d. A hollow bolt c slides in the ball b<1> and is pressed into engagement with a core piece e by a spring g. The bolt is locked in position by balls l pressed through holes in the side of the bolt c by an inner sliding member m pressed upwards by a spring n. A Bowden wire is led from the member m to a control lever near the pilot's seat, so that a pull on the wire first withdraws the member m to release the balls l and then withdraws the bolt c. A modification is described in which the locking-members m, l are omitted.
Patent GB-391972-A (GB)
Title: Contrivance designed to prevent vehicles from skidding
IPC: B60B39/00
Filed: 1932-04-28
Abstract: 391,972. Preventing skidding. SCHWIETERT, C., 32, Deurloostraat, Amsterdam. April 28, 1932, No. 12225. Convention date, May 16, 1931. [Class 108 (ii).] A vehicle antiskid device includes a shoe 2 integral with guides 1 situated near the extremities of the shoe and which co-operate with guides 3 situated at each end of a rectangular box secured to the vehicle axle near a road wheel. The shoe is lowered on exerting a pull on a cable 17 which rotates a lever 12 and a bell-crank lever 5 mounted on a spindle 6 against the action of a spring 14. The lever 5 is connected to a similar lever 8 and each is connected by rods 4, 10, respectively, to the shoe. A spring 13 is interposed in the cord 17. Two such devices may be mounted on the rear axle of the vehicle and may be operated severally or simultaneously from the driver's seat. The shoe is faced with hair and an elastic buffer.
Patent GB-157674-A (GB)
Title: Heel breasting machine
IPC: A43D87/00
Filed: 1920-05-04
Abstract: 157,674. Fairweather, W. C., (Hamel Shoe Machinery Co.). May 4, 1920. Breasting.-In a heel-breasting machine of the type in which a knife reciprocates towards and from a work support, a work-contacting feeler lightly pressed against the shank of the shoe before the descent of the knife is arranged to disconnect the knife from its actuating-mechanism as it reaches the shank. As shown, a breasting- knife 18 is carried by a slide 16 normally connected by a pawl 20 engaging an abutment 27 with a slide 14 vertically reciprocated by a crank on the main shaft of the machine. The pawl has a cam-surface 23 by which the pawl is tripped by engagement with a cam-face 36 vertically fixed relatively to a feeler 41 previously pulled down to engage the shank of the shoe. The heel abutment comprises a plate 64<a>, Fig. 1, adjustable about a pivot 65 by a set-screw 67. The worksupport is pivoted at 44, adjustable in height by a hand-wheel 46 engaging oppositely screwthreaded rods, and is raised to clamp the shoe against the plate 64a by sliding cam-surfaces 48, 50 of which the lower is operated by a pedal 57 provided with locking-means 71. The pedal 57 also pulls down the feeler 41 into contact with the shank of the shoe. When the pawl 20 is tripped by the cam 36, the knife-carrying slide is immediately raised by springs 30.
Patent GB-843270-A (GB)
Title: Method of and means for testing ferrous material
Inventor: BENDER JOHN CARLOS
IPC: G01N27/90
Filed: 1957-04-15
Abstract: 843,270. Electromagnetic method of testing. HOUSTON OIL FIELD MATERIAL CO. Inc. April 15, 1957, No. 12291/57. Class 37. Anomolies in magnetic material are detected by means of an energising coil 12 and a detector coil 18 in a fixed geometrical relationship, direct inductive coupling between the two coils being prevented by mounting an impermeable shield between them. The device may be enclosed in a housing and moved through successive cylindrical specimens such as testing pipes used in oil wells. It is stated that the sensitivity of the device is increased by magnetizing the specimen or by subjecting the specimen to strain.
Patent GB-595699-A (GB)
Title: Improvements in or relating to tensioning devices for controlling the unwinding of fine material
IPC: H01G13/02
Filed: 1945-05-18
Abstract: 595,699. Unwinding foil &c. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 18, 1945, No. 12534. Convention date, May 18, 1944, [Class 120 (ii)] A tensioning device for controlling the unwinding of thin strip material, particularly thin foil which with lengths of paper 252, is to be wound into an electrical condenser, comprises a mandrel 220 for the material 227 to be unwound, bearings 214, 217 at opposite ends of the mandrel, one of said bearings being provided at one end of a supporting member 203 which at its other end pivots against a fulcrum 209, and resilient means 233 acting on the member 203 intermediate the ends thereof in such a way that the bearing 214 carried by the member can exert an axial pressure on the mandrel to exert a frictional drag thereon. The front and back members 203, 202 are supported on a rod 208, the fulcrum collar 209 being attached thereto by a set screw 210. The back plate. 202 carries a housing 215 for the pivot 217 which may be oiled at 218. The front pivot 214 is received in an aperture 212 in the plate 203. Adjustment of the nut 232 on the rod 24 varies the spring compression at 233 and, therefore, the frictional drag at the pivot 214. The collar 209 may be turned to vary the fulcrum point of the plate 203. Adjustment of the nut 230 moves the roll 227 in relation to the paper strip 252. For loading or unloading mandrels, the member 207 is moved away from. the plate 202, against spring pressure at 233, and then turned to free. the member 203 from rods 208, 205.
Patent GB-451876-A (GB)
Title: Improvements in or relating to translating devices for translating electrical variations into light variations
IPC: G02F1/07
Filed: 1935-04-26
Abstract: 451,876. Electro-optical light valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and MYERS, L. M., Roseberry, Cornfield Road, Middlesbrough. April 26, 1935, No. 12557. [Class 40 (iii)] A Kerr cell utilizes both the ordinary and extraordinary beams which are circularly or elliptically polarized. An Iceland spar block ISP produces the two beams plane polarized, and a quarter wave plate QP, e.g. of mica, renders the beams circularly or elliptically polarized. The analyzer comprises a similar quarter wave plate QA and an Iceland spar block ISA. The Iceland spar blocks may be replaced by double image prisms.
Patent GB-1275530-A (GB)
Title: Embossing tool
Inventor: BREMER GEORG FRITZ
IPC: B41J3/39
Filed: 1971-04-30
Abstract: 1275530 Selective embossing DYMO INDUSTRIES INC 30 April 1971 [30 April 1970] 12558/71 Heading B6F An embossing tool has a generally rectangular frame 12, an embossing station 26 adjacent a first corner 27 of the frame and an actuating lever 74 pivoted and 78 adjacent a diagonally opposite comer 80 of the frame. A supply of strip material is held in a casset 18 adjacent a third corner 66 of the frame and a link 100 is pivoted at 104 adjacent the fourth corner. The lever 74 and link 100 are arranged end to end in general alignment between the second and fourth comers of the frame and coupled at juxtaposed ends therof such that upon depression of the activating lever 74 intermediate the two corners, the link will pivot laterally to operate embossing means at the embossing station. The link 100 carries a cam 116 (Figs 6 and 7) which co-operates with an actuator (30) mounted on a cantilever (120). The cantilever is fixed to the frame and biases the actuator (30) downwardly away from the fingers of an embossing disc rotatively held in the clip 34, Fig. 3. The first portion (130) of the cam moves the actuator into contact with a selected finger, and the second portion (132) causes the actuator 30 to deflect the selected finger (42) of the disc so that the plastic strip is embossed. Web feeding.-The strip 14 is first of all twisted at 50 through 90 degrees and is then advanced by a ratchet driven feed roller 60 which urges the strip 14 against pressure pads 62 when the lid 20 is closed. The pawl (144, Fig. 7) which drives the ratchet (148) is formed on a slide (140) driven by the link 100. Transverse severing.-(Fig. 9) An anvil (166) is moved up to co-operate with a pair of spaced blades (164, 162) by a cam (174) on a spring loaded actuating lever 170.
Patent GB-1534934-A (GB)
Title: Production of composite images
IPC: H04N9/75
Filed: 1976-03-29
Abstract: 1534934 Television EVERSHED POWER-OPTICS Ltd 28 March 1977 [29 March 1976] 12589/76 Heading H4F In a chroma-key arrangement signals representing the panning and tilting movements of the foreground camera are generated and used to control the position of the background image relative to the background camera in two mutually perpendicular direction in a plane perpendicular to the optical axis of the background camera, so that the image provided by the background camera appears to move in a direction opposite to the direction of panning or tilting movement of the foreground camera i.e. a realistic composite picture is produced when the foreground camera is panned or tilted.
Patent GB-1426138-A (GB)
Title: Textile strang-crimping apparatus
IPC: D02G1/12
Filed: 1974-03-21
Abstract: 1426138 Crimping apparatus TEXTURED YARN CO Inc 21 March 1974 [22 March 1973 5 July 1973 11 Oct 1973 19 Feb 1974] 12681/74 Heading D1F A crimping apparatus has an entrance 25 and exit 35 for the strand and means to laterally confine the strand therebetween with fluid jetting means 24 adjacent the entrance to forward the strand and with openings 34 forming a fine screen adjacent the exit, the screen contacting the external atmosphere outside and the strand inside. The inside of the confining means enlarges either in steps 32a, 32b and/or by flaring of the end. Additional apertures may be provided in the form of backwardly raked openings 7a, 7b, 7c which can have a sleeve or sleeves with further apertures 37a, 37b, 37c (Fig. 13) which can be moved relative to the apertures 7a', 7b', 7c' to control the eflux of fluid. The crimper may have feed rolls 16 to feed material into the crimper. Strand fed to the crimper may be passed through a drawing zone formed by godet and separator rolls, Fig. 1 (not shown).
Patent GB-1462318-A (GB)
Title: Shaft coupling
IPC: F16D3/18
Filed: 1975-03-26
Abstract: 1462318 Shaft couplings RELIANCE ELECTRIC CORP 26 March 1975 [12 April 1974] 12722/75 Heading F2U A shaft coupling comprises a pair of hubs 5, 6 provided with external teeth, a sleeve 9 comprising at least two arcuate sections 11, 12, the sleeve 9 being split along longitudinally extending radial planes and having internal teeth which engage the teeth of the hubs, the sleeve 9 having radially inwardly extending flanges 18, 19 and an outer shell 14 encompasses the sleeve 9 to hold it together and on the teeth of the hubs 5, 6. The hubs 5, 6 are fixed to respective shafts 7, 8. The flanges 18, 19 each have a groove for a respective sealing ring 27, 28. Ridges 16 on the sleeve 9 ensure that the shell 14 is a tight fit, it compressing or cutting the ridges when fitted. Each sleeve section may have a tongue engaging a recess of an adjacent section. Rings 31, 32 may protect the flanges 18, 19 from wear due to contact with the hub teeth. In the embodiment shown the shell 14 is axially retained by a flange 43 and a snap ring 45. Two snap rings can be used instead (Fig. 5, not shown) or snap ring 45 can be replaced by radial projections which give a snap fit (Figs. 7 and 8, not shown). Three sleeve sections can be provided instead of the two shown (Fig. 9, not shown). The sleeve 9 can be of injection moulded self-lubricating plastics material such as polyurethane or nylon. The shell 14 can be steel.
Patent GB-695697-A (GB)
Title: Improvements in and relating to sheathed electric heater insulating material
IPC: C04B35/48
Filed: 1952-05-20
Abstract: A binder-free, refractory, heat-conductive, embedding and electrically insulating material for sheathing electrical heating resistances comprises a mixture of 20 to 40 per cent. by weight of granular magnesium oxide of such a particle size that at least 22 per cent. is retained on a 60 mesh standard U.S. screen and all passes through a 60 mesh screen and zirconium silicate with or without silica, of a particle size less than 80 mesh and with at least 80 per cent. less than 100 mesh.  The powder comprises 20 to 40 preferably 30 per cent. fused magnesium oxide, 30 to 70 preferably 50 per cent. fused zirconium silicate and up to 40 preferably 20 per cent. silica. The powder is introduced around a resistance wire in an open-ended metal tube and is compacted by reducing the diameter of the tube (see Group XI).