baber/WOPTO huggingface dataset:
Patent GB-593802-A (GB)
Title: Improvements in plug valves
IPC: F16K11/076
Filed: 1944-12-12
Abstract: 593,802. Rotary plug valves. CARTER, S. C. Dec. 12, 1944, No. 24925. [Class 135] A rotary plug valve having packing 15 surrounding ports 20 in the casing has a member 62 slidable in the plug 14 to occupy a port 30 therein, so that the plug, when rotated presents a smooth surface to the, packing and does not cause damage thereto. As shown, the valve has one inlet port 22 and four outlet ports 20, as seen in Fig. 4, which is a section on the line 4-4 of Fig. 1, communication between the inlet port and any of the outlet ports being by way of a passage 30a and the port 30 in the plug. Movement of the member 62 is effected by an eccentric pin 75 engaging a slot 76 in the member 62, the pin 75 being formed on a spindle 73 mounted for rotation in the plug, and operable by a lever 80 pivoted, about a pin 81 in a block 86 fixed to the spindle. A finger 84 carried by the lever 80 engages a notch 83 on an arm 82 keyed to a hollow stem 70 integral with the plug, whereby the spindle 73 and the stem 70 may be rotated together so that the member 62 remains in the port 30 when the plug is rotated. An inwardly formed flange 85 at the top of the valve casing prevents the finger 84 from being disengaged from the notch 83, except when the port 30 in the plug is in register with one of the outlet ports 20, when one of four slots 90 in the flange permits the lever 80 to be raised about the pin 81 so that the spindle 73 can then be rotated through 180 degrees independently of the plug, to remove the member 62 from the port 30, and permit the passage of fluid.
Patent GB-985453-A (GB)
Title: Hawaiian or plectrum guitar tuning changer
IPC: G10D3/14
Filed: 1962-06-29
Abstract: 985,453. Stringed musical instruments. A. H. JENKINS. June 4, 1963 [June 29, 1962], No. 24960/62. Heading G5J. The basic tuning of a stringed musical instrument (e.g. a guitar) is raised or lowered by means of suitably shaped cam members 5 (Figs. 1 and 2) operated by means of a lever 7.
Patent GB-625983-A (GB)
Title: Improvements in or relating to generators for signals of short duration
IPC: H03K5/07
Filed: 1946-08-21
Abstract: 625,983. Pulse generating circuits. O'BRIEN, W. J. Aug. 21, 1946, No. 24983. Convention date, Aug. 27, 1945. [Class 40 (v)] The output of a sine wave generator 10, applied to valve 11, which is normally selfbiassed beyond cut-off, causes the valve to pass a pulse of anode current near the peak of each positive half-cycle. The inductor 24 is shockexcited to produce a highly damped wave, the first positive half-cycle being effective to cause normally non-conducting valve 27 to pass current to give an output pulse. By returning the grids of the valves to a positive potential the resistance of resistors 18 may be made greater than normal. Specification 584,727 is referred to.
Patent GB-1501130-A (GB)
Title: Locking mechanism for pedestal seat
IPC: B60N2/14
Filed: 1975-06-11
Abstract: 1501130 Rotatable vehicle seats UOP Inc 11 June 1975 [12 June 1974] 24997/75 Heading A4J A rotatable vehicle seat is locked in a forwardly facing position by engagement of a detent 58 in aligned slots 60 and 30 in inner and outer tubes 14, 16 the outer tube being rotatable and being fixed to the seat frame 24. Brackets 36, 38 fixed to the outer tube on each side of the slot are moved towards each other to cause frictional engagement between the two tubes by the interaction of a cam 52 fixed to a rotatable shaft 46 with a cam 54 fixed to the bracket 38. The detent 58 is also mounted on the shaft which is biased towards a position in which the detent engages the slot 60 and the tubes are frictionally engaged by a spring 62.
Patent GB-375613-A (GB)
Title: Improvements in or relating to pistons
IPC: F02F3/00
Filed: 1931-09-05
Abstract: 375,613. Pistons. KREISINGER, J., 10, Averhoffstrasse, Hamburg, Germany. Sept. 5, 1931, No. 25003. [Class 122 (i).] To eliminate piston slap the cast-iron &c. skirt b is formed with. two or more resilient tongues d, e in each main pressure face. One or more tongues f may be out in the subsidiary pressure faces. Holes g are formed in the skirt to reduce weight. The head a is of light metal.
Patent GB-443033-A (GB)
Title: Improvements in or relating to hydraulic braking systems
IPC: B60T11/16
Filed: 1934-08-30
Abstract: 443,033. Hydraulic brakes. BROWN, E. L., Belfield House, West Road, Bowden, near Manchester. Aug. 30, 1934, No. 26038. [Class 103 (i)] If the master piston b of a hydraulic brake system fails in making an application of the brakes to meet the normal resistance of the liquid, due to leakage, it engages a piston or abutment j connected by a rod g to a lever m pivoted at n and connected to the brakes which are normally applied hydraulically, or to other brakes so that these brakes are applied mechanically. The lever m may be connected to the cross-shaft of the hand-brake system of a vehicle. The rod g slides through a bearing f screwed into the end of the cylinder a and carries a piston or abutment l sliding in a tube h and on which a return spring k bears. In a modification in which the cylinder a is disposed in the reservoir, the tube h is secured to the cylinder by the unions such as c to which the outlet pipes are connected. According to the Provisional specification, when the hand-brakes are applied by the hydraulic piston, the handbrake lever may be disconnected from the cross-shaft so that the ratchet on the lever will not hold the brakes on after the pedal has been released.
Patent GB-947728-A (GB)
Title: Method for the photopolymerization of acrylonitrile in aqueous zinc chloride solution
IPC: C08F20/00
Filed: 1961-07-11
Abstract: Acrylonitrile or a mixture of comonomers containing at least 85% of acrylonitrile and up to 15% of another monoethylenically unsaturated compound is photopolymerized in an aqueous solution containing at least 55% of zinc chloride, based on the weight of salt and water, at a temperature below 40 DEG C. under radiation with near-ultra violet rays of wave length 3500 to 3700<\>rA and sensitised with a mixture of hydrogen peroxide and an acid or acids.  Specified acids are hydrochloric, phosphoric, acetic and formic acids.  An example describes the copolymerization of acrylonitrile, methyl acrylate and sodium allyl sulphonate in aqueous zinc chloride solution in the presence of hydrogen peroxide and hydrochloric acid.  The polymer solutions obtained may be spun directly into fibres.
Patent GB-711038-A (GB)
Title: Improvements in or relating to the melt spinning of artificial filaments from high polymer substances and to spinnerets for use therein
IPC: D01D5/08
Filed: 1950-10-13
Abstract: <PICT:0711038/IV (a)/1> A spinneret for use in the meltspinning of artificial filaments comprises a base 1 of non-precious metal chemically inert to the melt and of high strength and at least one precious metal member 6 provided with a spinning orifice 12 secured by a force-fit in an aperture in the base, the member having a completely frusto-conical outer surface which engages a corresponding frusto-conical surface defining the aperture.  The base may be of stainless steel and the member of a gold-platinum alloy.  The member may be cupshaped internally.
Patent GB-930539-A (GB)
Title: Improvements in or relating to x-ray examination apparatus
IPC: G03B42/02
Filed: 1960-07-20
Abstract: 930,539. Retractive switches. SIEMENSREINIGER-WERKE A.G. July 20, 1960 [July 22, 1959], No. 25368/60. Class 38 (5). [Also in Group XX] X-ray spot-film apparatus Z has a handle 14 consisting of two coaxially aligned portions 15, 16 mounted on the front face of the apparatus, a further actuating member being disposed between the handle and said front face for electrically controlling various operations or movements. In the form shown, this actuating member is a switch 20, having two trigger parts 21, 22 which may be conveniently operated by a finger of a hand gripping the handle 14. The switch 20 slides concentrically on a pin 19 secured to the flat face 11 of the apparatus Z, and has fixed to it a push-rod 35 ending in a cam 36. In the pin are recesses 25, 26 in which engage spring-loaded balls 31, 32. The switch can thus be pulled upwards (i.e. in the direction of arrow 37) in two stages, the first where balls 31, 32 engage in the recesses 25, 26, and the second where they are moved past the recesses. In these two stages, the cam 36 causes first contact sets 38, and then 39, to close, causing first a photographic cassette to be moved into the field of a fluorescent screen, and then the X-ray exposure made. On moving the switch in the other direction (arrow 42), cam 36 operates contact set 43, closing a circuit for initiating radioscopy. Two further coaxial portions of the switch, a tube 46 and a pin 52, can be rotated by end members 44, 45. These cause respective rotation of levers 48 54, each of which controls two sets of contacts respectively 50, 51, and 56, 57. These are arranged to control circuits operating the four blades of an X-ray diaphragm.
Patent GB-387957-A (GB)
Title: Improvements in or relating to electric water heaters
IPC: F24H9/20
Filed: 1932-09-12
Abstract: 387,957. Thermal switches. BRITISH THERMOSTAT CO., Ltd., Windmill Road, Sunbury, Middlesex, and PAYNE, M., 50, Hook Road, Surbiton, Surrey. Sept. 12, 1932, No. 25378. [Class 38 (v).] A mercury tilting switch for a thermostatically controlled electric heating unit is carried by a bracket 10 pivoted at 10a and is tilted on expansion of a thermally expansible bellows 6 by a push rod 9 acting against a spring 12, a nut 14 being provided to adjust the tension of the spring and thus regulate the temperature at which the switch acts. The switch is carried on a plate 17 which bears an insulating plate 18 to carry the switch terminals.
Patent GB-976256-A (GB)
Title: Improvements in or relating to harvesting machines
IPC: A01D90/00
Filed: 1962-07-03
Abstract: 976,256. Forage harvesters. W. G. MORGAN. Oct. 3, 1963 [July 3, 1962], No. 25389/62. Heading A1F. A forage-harvester 1 is pro vided with a platform 5 to receive a detachable receptacle 7 in a position to collect the crop delivered by the discharge-spout 2 of the harvester. The receptacle is of open-work construction with mesh sides 7a, 7b, 7c and with forwardly-projecting. pins 14 which engage below lugs 6 on the front of the platform. At the rear, the receptacle carries a pair of hooks 8 and a lug 9; the hooks engage over a bar 10 carried by the lower hitch-links 11 of a tractor and the lug is engageable by a hook 12 carried by the upper link 13, whereby the receptacle, when full, can be carried away by a tractor for discharge of its load. Empty receptacles may be placed around a field so that harvesting may proceed while filled receptacles are being emptied.
Patent GB-389017-A (GB)
Title: Improvements in, and relating to, air compressors
IPC: F04B39/10
Filed: 1932-09-12
Abstract: 389,017. Air-compressers. RAYNER, G. H. T., 14, Broomhall Road, and RAYNER, P. T., 37, Ashland Road, both in Sheffield. Sept. 12, 1932, No. 25396. [Class 8 (i).] An air-inlet valve for an air-compresser comprises a piston valve 13, the axis of which is perpendicular to the axis of the cylinder 2. The valve is actuated by a cam groove 21 in which is guided a roller 22 secured to a forked rod 19. The arms of the fork surround the crankshaft and fins on the fork may fit in grooves in the crankcase.
Patent GB-481891-A (GB)
Title: Improvements in or relating to containers for electric storage cells
IPC: H01M2/02
Filed: 1936-09-18
Abstract: 481,891. Batteries. INDIA RUBBER, GUTTA PERCHA, & TELEGRAPH WORKS CO., Ltd., and WALKLEY, B. Sept. 18, 1936; No. 25477. [Class 53] [Also in Group XVII] An accumulator container is formed on its outer surface with vertical ribs 10, 12 having arms 11, 13 extending therefrom. When the container abuts against a wall or against a similar container indirect passages are formed for air over the outer surface of the container. The arms 11, 13 may slope up wards and passages 16 for air may be formed in the ribs 10, 12. Channels 15 allow rising air to escape to the atmosphere.
Patent GB-532763-A (GB)
Title: Improvements relating to electric selector switches or regulators
IPC: H01H43/10
Filed: 1939-09-11
Abstract: 532,763. Controllers. CONTACTOR SWITCHGEAR, Ltd., and BRADBURY, C. A. Sept. 11, 1939, No. 25531. [Class 38 (iii)] A regulator such as the speed-varying resistance of a motor, comprises an arm 1 which is rotatable by means of an auxiliary motor 21 over a series of studs 2 from an initial or starting position; and carries with it an insulating disc 6 which is locked to an adjustable arm 3 rotatable on a trunnion 5. When the arm 1 is on the desired stud, the motor 21 is stopped, and the solenoid 18 can be energized to move a pivoted catch 14 and free the arm 3 from the arm 1, a reversing switch (not shown) then being operable to drive the motor 21 to bring the arm 1 back to the initial position. After a slight movement back, a contact 12 on arm 3 comes on a part-circular track 7 on the disc 6, so that when the arm 1 is again driven from its initial position by closing an auxiliary switch (not shown) in the circuit of 7, 12, and re-energizing motor 21, the arm 1 continues to rotate until it reaches the arm 3, when the contacts 7, 12 separate and open the motorcircuit, and at the same time the catch lever 14 rides up an inclined part 10 of disc 6 into slot 11, so positively arresting the arm 1. The main motor is thus caused to run at the same speed as previously, which speed is variable by operating the arms 1, 3 in unison. A solenoid and ratchet-and-pawl device may replace the motor 21. The motor may drive the arms 1, 3 independently of one another, a solenoidoperating clutch serving to couple either arm to the motor, Fig. 6 (not shown), or the arm 3 may be driven by a separate motor, Fig. 5 (not shown), or be hand-adjusted. The invention is stated to be applicable also to regulators of the straight-line type. Specification 379,148 is referred to.
Patent GB-1174863-A (GB)
Title: Improvements in or relating to Rotary Piston Internal Combustion Engines
Inventor: SCHUSTER ROLAND
IPC: F02B53/04
Filed: 1967-06-02
Abstract: 1,174, 863. Rotary piston internal combustion engines. MOTORRADWERK ZSCHOPAU VEB. June 2, 1967, No.25628/67. Heading F1F. A rotary piston I. C. engine comprising a threesided piston 5, Fig. 1, mounted for planetary rotation within a casing formed by side parts 2, 3 and a central part 1 having a bi-arcuate epitrochoidal inner profile, includes in the side part 2 an inlet port connected by a duct 10 to an ellipsoidal recess 13. The recess 13 communicates with a control port 15 through which part of the intake mixture is admitted to the engine suction chamber 7 and through cavities 17 in the piston 5 through which the remainder of the mixture passes to cool the piston before entering a similar ellipsoidal recess 14 in the side part 3. The remaining mixture then passes through a control port 16 to enter the suction chamber on the other side of the piston and an additional duct 11 to enter the chamber just prior to the chamber reaching its smallest volume at "top dead centre" to ensure adequate filling of the chamber. In addition to the duct 11 a lubricating passage 12 to the shaft bearing 9 may be provided. In an alternative construction, the duct 11 may extend from the shaft bearing 9 to the inner profile so that the fuel-air mixture is drawn through the bearings 8, 9 to ensure cooling and lubrication thereof.
Patent GB-209390-A (GB)
Title: Improvements in engine starters
IPC: F02N15/06
Filed: 1923-10-15
Abstract: 209,390. Eclipse Machine Co., (Assignees of McGrath, W. L.). Jan. 4, 1923, [Convention date]. Turning-gear.-In an electric or other starter comprising a driving member or pinion 12, mounted for rotary and longitudinal movement on a screw-threaded sleeve 6, and automatically disengaged from the engine fly-wheel 13 when the engine starts, the sleeve and pinion are movable by hand or foot actuation along a shaft 2 driven by the starting-motor 1, to bring the pinion 12 into engagement with the fly-wheel. The shifting means comprises a plunger 25 acting upon a bell-crank 26, 30 connected by a rod 31 to a lever 32 engaging a grooved head 10 on the sleeve 6. The arm 26 of the bell-crank actuates tha switch 3 of the motor 1. The pinion 12 is normally held by a light spring 24 against a stop 9 on the sleeve 6. If the engine starts while the motor is still in rotation, the pinion 12 is returned along the threaded sleeve 6 and is held by a pivoted catch 14 engaging in a longitudinal groove in the pinion. The catch 14 is pivoted in a groove 15 in the sleeve 6, and a spring- controlled plunger 17 acting on the rear end of the catch tends to lift the forward end into engagement with the pinion. When the plunger 25 is released and the parts return to the position shown in Fig. 4, the forward end of the catch is engaged by the part 22 of a sleeve 4 pinned to the shaft 1, so that the catch is withdrawn into the groove 15. In a modification, the motor 1 and shaft 2 are arranged vertically, the spring 24 is replaced by the action of gravity on the pinion, and the pinion engages teeth on the face of the fly-wheel.
Patent GB-368236-A (GB)
Title: A process for the production of plastic masses from the condensation products of phenol and aldehyde
IPC: C08G8/00
Filed: 1930-08-28
Abstract: Acid-resistant plastic masses are made by mixing hard rubber powder with phenol aldehyde condensation products in the A stage, and converting the resin to the C stage.  The rubber compound known as "Stabilit" may be employed.  Asphalt, organic or inorganic fillers, &c. may also be added.
Patent GB-501612-A (GB)
Title: Thermally-operated automatic switch
IPC: H01H73/30
Filed: 1937-09-22
Abstract: 501,612. Two-part couplings combined with switches. STOTZ-KONTAKT GES. Sept.- 22, 1937, No. 25754. Convention date, Sept. 22, 1936. [Class 38 (i)] [Also in Group XXXVII] An automatic circuit-breaker comprises a bimetallic strip c carrying a contact f cooperating with a contact e on a spring arm d provided with, a latch engaging a hole in a plate i carried by the strip c. Circuit is normally completed from terminal n through a pair of coupling members x, y, arm d, contacts e, f, strip c, arm z and a second pair of coupling members y, x. to terminal k. On overload strip c moves upwards carrying arm d with it until the latch h is disengaged. Arm d then springs downwards and circuit is broken at e, f. To reset the device, the cover p is removed together with the attached switch parts, and the latch is reset by hand. Circuit is then completed by replacing the cover, causing the pairs of coupling members x, y to engage.
Patent GB-995884-A (GB)
Title: Improvements in or relating to loom dobbies
IPC: D03C1/12
Filed: 1962-07-05
Abstract: 995,884. Loom dobbies. RUTI MACHINERY WORKS Ltd. July 5,1962 [July 26, 1961, No. 25784/62. Heading D1E. Heald frames are actuated by levers 116-118 rocking on a spindle 119 which are in turn operated by eccentrics 131, 130, 129 through links 122, 123 and 125 respectively. Each eccentric such as 131 is attached to a gear 134 freely mounted upon a driving shaft 137 to which is secured a gear 140 adjacent the gear 134. A drive from the shaft 137 is effected to actuate lever 116 when another gear 143 rotatably carried on an arm 146 is moved into engagement with both gears 134, 140. The heald frames can thus be selectively operated by suitable connections to the levers 116-118 by controlling the movement of the arms 144-146 by cam discs 153-155 under control of a suitable dobby control mechanism.
Patent GB-241570-A (GB)
Title: Improvements in fabrics made of textile materials and process of making the same
IPC: D04H11/08
Filed: 1925-10-15
Abstract: 241,570. Duratex Corporation, (Assignees of Smith, P. S.). Oct. 16, 1924, [Convention date]. Fabrics, pile.-A fabric is made by placing a mass of loose wool or hair fibres 10 on one side of a base fabric 12 of burlap, heavy cotton open-mesh cloth, or thin sheeting, projecting the fibres through the base 12 by barbed needles, removing the excess of fibres on the underside of the fabric by singeing &c., fixing the fibres by rubber cement, pyroxylin, or oxidized oil, and then combing, brushing, raising, and shearing the projecting fibres 18 to form a pile surface. The projected threads may be sheared near the surface to resemble plush, velvet, or velour, or they may be covered with a coating of rubber cement &c. as shown in Fig. 6, and felted to produce, a woollen appearance. A coating of cellulose ester such as is used in making artificial leather may be applied to the face of the fabric, which may be calendered. The fabric may have additional coats of rubber cement, pyroxylin, or oxidized oil to render it waterproof, and it may be, treated further with aluminium acetate. A sheet of fabric may be cemented to the rear side of the product. Specification 8202/15, [Class 140, Waterproof &c. fabrics], is referred to.
Patent GB-780144-A (GB)
Title: Improvements relating to food mixers
IPC: A47J43/044
Filed: 1955-09-09
Abstract: 780,144. Food mixers. HOOVER, Ltd. Sept. 9, 1955 [Sept. 10, 1954], No. 25907/55. Class 86  A food mixer comprises an elongated spinner shaft 25 one end of which is adapted to be detachably connected to, and driven by a power unit 10, the other end, carrying a spinner 42, being engaged and steadied by a guide 16 which has a part adapted to be detachably received by the power unit. As shown, the power unit 10 has a handle 11 which fits in a socket 13 in the handle of a mixing cup 15. The guide tube 16 at its upper end is detachably received in a socket 17 formed in the casing 18 of the power unit 10. The casing has a recess 19 to receive arms 20 of a latch 21, the upper end of which lies in a recess 23 and engages beneath a protuberance 22 on the guide tube 16. At its lower end the tube 16 has a nylon bearing 26 for the spinner shaft 25 which is reduced at its upper end and fits within a hollow connector 32 containing a spring 40. The connector has a hemispherical portion 33 and a lug 34 which fit into correspondingly shaped portions of the end of the armature shaft 31 of the power unit. The inner wall of the connector has longitudinal grooves 38 to receive protuberances 39 formed on the reduced portion 37 of the spinner shaft. The lug 34 on the connector readily breaks off if the spinner should become stalled, requiring a new connector.
Patent GB-445517-A (GB)
Title: Improvements in or relating to concrete mixers
IPC: B28C5/42
Filed: 1935-09-18
Abstract: 445,517. Mixing-machines. WITHERS, J. S., 51, Chancery Lane, London.-(Jaeger Machine Co.; 520, Dublin Avenue, Columbus, Ohio, U.S.A.) Sept. 18, 1935, No. 25919. [Class 86] A portable mixing-machine is provided with means including a reversing clutch for rotating the drum in opposite directions for mixing and discharge, means being provided for preventing the reverse rotation until a predetermined number of rotations in the mixing direction. The drum is mounted on rollers on a chassis and is rotated by means of a shaft which is connected by a clutch to oppositely driven members actuated by chain-and-spur gearing respectively from a shaft driven from the engine. The clutch is operated by an arm 35 which, on being moved to drive the drum in the mixing direction, engages a projection 60 on a pivoted member 58 having an inclined nose 59 which rides up a fixed member 58<a> and lies out of the path of the arm 35 near the end of its stroke. The member 58 is pivoted to a bar 51 sliding through a casing 84 and having a notch 52 engaged by a detent 49 when the bar is moved to the left. In this position of the parts a second projection 61 on the member 58 prevents movement of the clutch arm to its reversing position. The controlling device comprises a ratchet-wheel 48 rotated step by step by a pawl 47 on an arm 46 in one with an arm 44 engaged by a projection on the drum. The ratchet-wheel carries an adjustable member 54 which engages an arm 50 in one with the detent 49 thus releasing the bar 51 ; the arm also releases the pawl 47 and a retaining pawl 55, the ratchet then returning under the influence of a spring 50<a> till a stop 56 thereon engages the arm 46.