baber/WOPTO huggingface dataset:
Patent GB-848155-A (GB)
Title: Improvements in or relating to gear systems
IPC: F16H1/22
Filed: 1958-07-25
Abstract: 848,155. Rotary transmission dynamometers. WESTINGHOUSE ELECTRIC CORPORATION. July 25, 1958 [Aug. 8, 1957], No. 23993/58. Class 106 (2). [Also in Group XXIV] A gear system for use in measuring the torque transmitted by a shaft 22 comprises a first helical gear 20, a plurality of helical gears 26 meshing with the first gear 20, and a third helical gear 36 meshing with the gears 26, along a pitch circle differing from the pitch circle along which they mesh with the first gear. A turbine (not shown) drives the shaft 22 and with it the first gear 20. This in turn meshes with three pinions 26, mounted on shafts 28 free to slide axially, and the pinions 26 mesh with a ring gear 36 driving a propeller 39. Since all the gears are helical, a resultant thrust to the right (as viewed in Fig. 1) is imparted to the pinions 26 by reason of this difference of pitch circles, and this thrust is proportional to the torque being transmitted by the system. Oil under pressure is supplied to chambers 51 in which the shafts 28 slide, and leakage along a passage 63 allows the pressure set up to balance that due to the thrust on the pinions 26. This pressure, indicated by a pressure gauge connected at 65, is a measure of the torque.
Patent GB-734652-A (GB)
Title: Improvements in and relating to luminescent materials
IPC: H05B33/14
Filed: 1953-08-31
Abstract: 734,652. Luminescent materials. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 31, 1953 [Aug. 29, 1952], No. 24044/53. Class 39 (1). A copper-activated zinc sulphide phosphor having yellow or orange emission under ultraviolet excitation contains aluminium, the molar ratio of Cu to Allying in the range 1: 1 to 1 : 30 and the copper content lying in the range 0.3 to 1 per cent by weight of ZnS, but preferably 0.3 per cent. The phosphor may be prepared by moistening 20 gms. of ZnS with an aqueous solution of Cu(NO 3 ) 2  containing 0.06 gms. Cu and with a solution containing 0.41 gms. Al 2 (SO 4 ) 3  ; the mixture is dried, sieved and then fired for hour at 1100‹ C. in an atmosphere of H 2 S. After cooling to room temperature in this atmosphere the phosphor is a fine yellow powder of yellow fluorescence. If the amount of Al 2 (SO 4 ) 3  in the mixture is increased to 0.87 gms. the phosphor has an orange fluorescence. The peak emission of these phosphors under 3650 Š radiation varies from 5100 Š to 5800 Š becoming increasingly orange as the content of Cu and Al is increased. Under electron bombardment these phosphors give the green and blue bands characteristic of ZnS phosphors. Phosphors prepared with equal molar proportions of Cu and Al are electroluminescent. Substitution of other trivalent elements such as gallium, yttrium, indium, boron and lanthanum for the aluminium is referred to. Reference has been directed by the Comptroller to Specification 676,753.
Patent GB-751325-A (GB)
Title: Novel organosilicon compound
IPC: C07F7/21
Filed: 1954-08-18
Abstract: The invention comprises bis(heptamethyl cyclotetra siloxanyl) ethane, of the formula <FORM:0751325/IV(a)/1> The compound can be polymerized alone using reagents, such as alkali metal hydroxides or mineral acids, or can be copolymerized with other siloxanes forming cross-linked resilient gels useful as mould release agents and which may be compounded with fillers and vulcanized.  In the example, the above compound is prepared by heating octamethylcyclotetra siloxane with tert.-butyl perbenzoate, and is then copolymerized in very minor proportion with octamethylcyclotetrasiloxane by heating in the presence of KOH.ALSO:The invention comprises bis-(heptamethylcyclotetrasiloxanyl)-ethane, of the formula <FORM:0751325/IV(a)/1> The compound is prepared by heating octamethylcyclotetrasiloxane with tertiary butyl perbenzoate.ALSO:A mould release agent for organic plastic materials comprises a cross-linked polymer prepared by copolymerizing bis (heptamethylcyclotetrasiloxanyl) ethane with another siloxane.
Patent GB-1316913-A (GB)
Title: Toy
IPC: A63H13/12
Filed: 1971-04-19
Abstract: 1316913 Swimming and walking toys GAKKEN CO Ltd 19 April 1971 [7 March 1970] 24164/71 Heading A6S A swimming and walking toy comprises a casing 10 in the shape of an animal, a watertight propulsion unit 22 including a motor removably mounted in said casing and having a semicircularly shaped base 39 on which are formed a plurality of spaced abutments 40, a drive shaft (35) (Figs. 5, 6, not shown) connected to said motor and extending from both sides of said unit adjacent the base thereof, cranks 37, 38 coupled to respective ends of the drive shaft, a further shaft (46) movable around the curved base and which may be held in a selected position by means of said spaced abutments and a pair of foot members 48, 49 pivoted on said further shaft and moved respectively by said cranks. The adjustable shaft (46) enables the foot members to be set at appropriate angles to the axis of the propulsion unit for swimming with either head-up or head-down attitudes (Figs. 9C, 9D, not shown) or walking. The shaft (46) is mounted in a bearing 45 extending between plates 43, (44) which are loosely mounted on the drive shaft 35. In the embodiment described, the propulsion unit has three portions, the first portion 23 containing a switch mechanism which is actuated by an elongated lever 24 that extends through a mouth-portion of the animal-shaped casing, the second portion 25 containing the motor and electric cells (Fig. 5, not shown) and the third portion 31 housing gears and driving mechanism. The casing is provided with manually settable rudders (20), (21) (Fig. 1, not shown) and a bouyancy tank 13 which may be filled through normally plugged port 14 to enable the toy to swim submerged.
Patent GB-766068-A (GB)
Title: Improvements in or relating to ultra high frequency electro-magnetic wave guides
Inventor: LATHAM ROBERT
IPC: H01P1/08
Filed: 1953-09-01
Abstract: 766,068. High frequency discharge apparatus. ENGLISH ELECTRIC VALVE CO., Ltd. Sept. 1, 1954 [Sept. 1, 1953], No. 24189/53. Class 39(1). [Also in Group XL(b)] A dielectric window DW between input and output waveguides WGI, WGO, which may be at the output of a magnetron or klystron, lies in a plane perpendicular to the direction of the electric field of the dominant mode energy passing through the guides. In a modification, Fig. 3, the window DW<1> is in the form of a tube sealed at one end by a metal plate MD. In a further modification, Fig. 4 (not shown) the output guide is bent back on and then curves away from the input guide. Choke ditches CD and impedance matching irises (not shown) may be provided.
Patent GB-1407307-A (GB)
Title: Device for moving and positioning an element of a machine
IPC: F15B11/00
Filed: 1973-05-21
Abstract: 1407307 Hydraulic control of machine slides COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 21 May 1973 [23 May 1972] 24206/73 Heading F1P When a pilot valve 58, Fig. 2, is in the position shown, fluid passes through a line 28 and moves a spool 3 to the right by forcing a plunger 34, Fig. 1 against a stop 36. This permits pressurized fluid to pass from a chamber 12, Fig. 2, into a line 21 and a chamber 57 of an hydraulic ram 42, thus moving the body of the ram to the right. When an adjustable stop 45 on the body of the cam abuts a member 47 the spool 3 is pulled back to its central position by links 48, 51, 38. The spool 3 is held centralized by a combination of the action of the mechanical linkage to the ram and the pressure of fluid in the control duct 28. With the pilot valve 58 in the opposite position to the one shown the spool 3 and ram body move to the left. Adjustable throttles 59, 60, 62 control the speed of movement of the ram body. A push-button by-pass valve 63 allows rapid movement when desired.
Patent GB-978052-A (GB)
Title: Improvements in lug straps for looms for weaving
IPC: D03D49/38
Filed: 1962-06-23
Abstract: A lug strap of U-shape is made in the flat condition and consists of relatively rigid straight portions joined by a flexible portion which accommodates itself to the shape of the picking stick.  The strap may be made of fabric or leather folded upon itself, or laminated, and impregnated in the end zones with hard-setting wax or resin; or it may be made from rigid and flexible materials joined end to end by bonding or riveting.  The transition from the rigid to the flexible zones may be gradual.
Patent GB-1437290-A (GB)
Title: Rotary piston internal combustion engine
IPC: F02B3/06
Filed: 1974-05-31
Abstract: 1437290 Rotary positive-displacement fluidmachines ROPARCO Ltd 31 May 1974 [1 June 1973] 24293/74 Heading F1F In an I.C. engine that may be of the trochoidal type fuel-air mixture is inducted through an opening 5 and after compression ignited by a spark-plug 8, partially expanded combustion-products receiving fresh fuel-air mixture through an opening 6, and the resulting weak mixture of fuel, air and exhaust gases being ignited by e.g. a spark-plug 9 or a catalyst incorporated in a portion of the casing 1 wherein transfer passages 12 for the combustion products may be formed.
Patent GB-637202-A (GB)
Title: Improvements in or relating to hinge checks
IPC: E05C17/24
Filed: 1947-09-04
Abstract: 637,202. Stays for hinged articles. EVANS, W. Sept. 4, 1947, No. 24379. [Class 65 (i)]  A stay comprises a friction member 13 connected by a linkage 14, 15 to a hinged member or lid 16 and having a plane surface which slidingly engages a vertical plane surface on a fixed guide member 12 under resilient pressure, and means for varying the pressure automatically according to the angular position of the hinge. A lever arm 20, pivoted at its lower end 21, is urged against a projection 19 on the friction member by a leaf spring 22. The lid is held in the closed position by the engagement of said projection with a recess 27 in the lever arm. In a modification spring blades bear upon a cam surface formed on the friction member. The cam surface is so shaped that the blades are deflected away from said member when the lid is lowered, while one of the blades rides over a hump to hold the lid in the closed position.
Patent GB-586498-A (GB)
Title: Improvements in or relating to hand grenades or other light bombs
IPC: F42B27/08
Filed: 1944-12-06
Abstract: 586,498. Hand grenades &c. JEFFERIS, M. R., MACRAE, R. S., SINCLAIR, A. L., HARTLEY, H. K., and KAY BROS., Ltd. Dec. 6, 1944, No. 24444. [Class 9 (i)] A hand grenade or light bomb according to Specification 572,542 comprises a sealing plug g and a washer 3 for the frangible explosive container b, the sealing plug having a cavity for the reception of an igniter unit i and being screwed in the neck t of the container into which the handle s also screws. The igniter unit comprises a detonator cap holder i, a time fuze member j and a detonator k. A concussion explosive primer pellet 2 is fitted in a primer tube f. A two-part casing o as described in the prior Specification is provided with a stirrup q for carrying the grenade. The container b is in two halves cemented at c. The bore of the sealing plug is provided with longitudinal gas escape channels for the burning fuze.
Patent GB-244749-A (GB)
Abstract: 244,749. Fourment, M. Dec. 22, 1924, [Convention date]. Induction furnaces. - An electric furnace for processes involving gas reactions consists of a tube 1 of graphite or other conductive material surrounded by a heat-insulating substance 2 enclosed in a silica or like tube 3 on which is wound a coil 4, preferably of copper tubing, through which cooling-water flows. The furnace is heated by the currents induced in the tube 1, which may have a protective lining of refractory material such as zirconia. A silica delivery tube 6 may be screwed to the end of the tube 1 and secured by a refractory cement. The tube 6 may pass through a water-chamber 8 so as to cool the gases suddenly when the reaction is complete.
Patent GB-640869-A (GB)
Title: Tractor seat construction
IPC: B60N2/38
Filed: 1948-09-20
Abstract: 640,869. Seats ; resilient mountings. FORD MOTOR CO., Ltd. Sept. 20, 1948, No. 24600. Convention date, Sept. 19, 1947. [Classes 52 (i) and 52 (ii)] A tractor is provided with a bucket seat which is hinged to its resilient mounting so that it may be turned over so as to face generally downwardly in its inoperative position to allow space for the driver to assume a standing position when the tractor is in motion and to protect the seating surface from dew or rain. As shown, the bucket seat 32 is hinged at its upper rear part to the rear end of a generally U-shaped spring bar 33, 36 by means of hinged brackets 43, 49 which afford abutments to support the bucket seat in both its operative and inoperative positions. A catch 59, 61 is provided to retain the bucket seat in its operative position. The figure shows the bucket seat 32 in both of its positions.
Patent GB-210374-A (GB)
Title: A new or improved device for unloading timber from vehicles
IPC: B60P1/52
Filed: 1923-10-05
Abstract: 210,374. Tappin, A. H., and Tait, J. Oct. 5, 1923. Vehicle fittings. - The rear end of a load of timber rests upon a roller d which can be rotated to move the load rearwardly until it tilts on to the ground or on to a trestle so that unloading can be completed by moving the vehicle forwardly. As shown, the roller d can be rotated by a handlever j and ratchet gear. The surface of the roller d is formed with sharp projections to engage the load. An actuating lever may be provided at each end of the roller.
Patent GB-1334407-A (GB)
Title: Transistor switching amplifier
IPC: H03K6/02
Filed: 1971-04-19
Abstract: 1334407 Transistor switching circuits XEROX CORP 19 April 1971 [31 March 1970] 24980/71 Heading H3T [Also in Division H2] In a symmetrical switching amplifier circuit comprising two symmetrical halves each half comprises an inductive load, a first transistor circuit which includes a first transistor Q18 or Q11 responsive to input operating alternating current signals of opposite phase for each half for selectively connecting and disconnecting an external source of potential 3 which is common to each half to the load, a capacitor C2 or C3 coupled between the collector and base of the first transistor for controlling the rise and fall times in the output signal from the first transistor Q18 or Q11 so as to reduce exposure of the first transistor to voltage and current transients and a diode CR14 or CR15 coupled between the emitter and base of the first transistor for shunting transients and a second transistor Q8 or Q9 coupled to a source of square waves 1 or 2, of opposite phase for each half, for generating the operating alternating current signals which are coupled to the first transistor circuit. Resistor R20 and capacitor C2 provide an integrator amplifier operation of the switching transistor Q18 (Figs. 3 and 4, not shown) between switching on and switching off so as to protect the transistor Q18 from transients. Diode CR14 also protects the base-emitter junction of the transistor from voltage transients. Transistors Q8 and Q18 are rendered conducting by positive input pulses 1. Diode CR12 limits the negative going input signal to Q8. Input signal 2 which is 180 degrees out of phase with input 1 operates the switching transistors Q9 and Q 11. The inductive load may be a four pole, capacitor phased, hysteresis synchronous motor. Other inductive loads mentioned include transformers, relays and solenoids.
Patent GB-740938-A (GB)
Title: Improvements in or relating to high voltage insulators
Inventor: CLARK COLIN HENRY WILLIAM
IPC: H01B17/50
Filed: 1953-09-09
Abstract: 740,938. Insulators. STEATITE & PORCELAIN PRODUCTS, Ltd. Sept. 3, 1954 [Sept. 9, 1953], No. 24937/53. Class 36. A high-voltage insulator is provided with means which operate as and when required to maintain a supply of a non-conducting hydrophobic liquid at least to its upper external surfaces, the rate of supply of the liquid being adjusted to maintain a slowly gravitating film over the external surfaces. A reservoir provided with one or more drip feeds, formed at least partly of porous material or having a base comprising a porous gasket or washer may be located above the insulator. The liquid may comprise a hydrocarbon oil or may incorporate a silicone. The sheds of the insulator may be so arranged that drips fall from each on to the next lower shed or they may be provided with drip-lips. The flow of the liquid may be arranged to take place only when conditions prevail which would cause fouling of the insulator surface and a consequent current leakage, or may be increased under such conditions.
Patent GB-821759-A (GB)
Title: A harpoon for the introduction of anaesthetic, lethal, or preserving etc. means into the interior of harpooned marine animals
IPC: A61D7/00
Filed: 1957-08-07
Abstract: 821,759. Harpoons. KRISTOFFERSEN, A. K. Aug. 7, 1957 [Dec. 15, 1956], No. 24959/57. Class 9(1) A harpoon is provided with a chamber containing lethal, anaesthetizing or preservative fluids which are released into the whale or other target after penetration by the harpoon, the release being caused by a pull on a rope attached to the harpoon.
Patent GB-958373-A (GB)
Title: Extrusion process and apparatus
Inventor: BARBER BRIAN KENNETH
IPC: B29C48/15
Filed: 1960-07-18
Abstract: 958,373. Coating wire cores by extrusion. BRITISH OXYGEN CO. Ltd. July 14, 1961 [July 18, 1960], No. 24976/60. Heading B5A. In the production of welding electrodes having an extruded flux coating, flux in a pasty condition is fed into, and tamped and compressed in, a cylinder 11 which is thereafter moved to an extrusion station at which the flux is extruded on to a succession of wire cores. An arm 10, rotatably mounted on a pillar 8, carries a pair of cylinders 4 and 11, the cylinder 11 being shown in position over a fixed, cylindrical extension 13 to receive pastry flux from a hopper 18, and the cylinder 4 being located over a die block 2 and beneath a reciprocating ram 6. A tamping ram 20 is operated to compact the flux in the cylinder 11 and the extension 13 whereafter a gate 16 is closed over the cylinder 11 and a ram 14 is moved upwardly to compress the flux to exactly fill the cylinder 11. Simultaneously the ram 6 is moved downwardly to force compressed flux from the cylinder 4, which has been previously filled and rotated through 180 degrees on the arm 10, into the die block 2 and around core wires, short lengths of which are passed continuously through the die block 2. An arm 10, rotatably mounted on a pillar 8, carries a pair of cylinders 4 and 11, the cylinder 11 being shown in position over a fixed, cylindrical extension 13 to receive pastry flux from a hopper 18, and the cylinder 4 being located - over a die block 2 and beneath a reciprocating ram 6. A tamping ram 20 is operated to compact the flux in the cylinder 11 and the extension 13 whereafter a gate 16 is closed over the cylinder 11 and a ram 14 is moved upwardly to compress the flux to exactly fill the cylinder 11. Simultaneously the ram 6 is moved downwardly to force compressed flux from the cylinder 4, which has been previously filled and rotated through 180 degrees on the arm 10, into the die block 2 and around core wires, short lengths of which are passed continuously through the die block 2.
Patent GB-1503131-A (GB)
Title: Tube branch tool
IPC: B21D41/04
Filed: 1976-06-16
Abstract: 1503131 Pipe branch tools RAST PATENT MFRS PTY Ltd 16 June 1976 [18 June 1975] 24977/76 Heading F2G [Also in Division B3] The end of a branch pipe 12 is cut to match the internal wall of a main pipe by a tool comprising a die 3 apertured to closely receive the end of the branch pipe 12 and having a pair of diametrically opposed cutters 8 slidable within a bore passing transversely of the aperture, the end of the pipe 12 fitting into slits 10 of the cutters 8, the cutters 8 being urged together by a spring circlip 20 and forced apart by a tapered drift 15 to remove curved end sectors of the pipe 12 within the slits 10. The drift 15 is moved by a cam 19 on the end of a lever 17 pivoted to the tool, a second lever 17 being fixed. A protrusion on a member removably fixed to one or each of the cutters 8 and cooperating with a depression in the die 3 may form a dimple or ridge in the pipe wall. A sleeve 2 holds the circlip 20 in place and may be removed for replacement of the cutters 8. The slits 10 may comprise narrow central portions extending through the cutters 8 to allow cut segments to be ejected from the rear.
Patent GB-602900-A (GB)
Title: Improvements in or relating to charging process for glass furnace or kilns
IPC: C03B1/00
Filed: 1945-09-26
Abstract: 602,900. Glass manufacture. GLACERIES DE ST. ROCH, SOC. ANON. Sept. 26, 1945, No. 25019. Convention date, Jan. 31, 1944. [Class 56] A charge for a glass furnace is introduced in block form, the blocks, each of the order of from 50 to 1000 kgs. or more, being charged one by one. The batch, suitably wetted, and with or without a binding agent, may be poured directly from the mixer into a metal mould, e.g. of truncated cone form, open top and bottom and mounted on a plate, the mould or the plate or both being vibrated or subjected to percussive shocks to compact the material. A counterweight having a wedge-shaped, conical, pyramidal, &c. bottom may be placed on top to compress the upper layers. After withdrawal from the mould, each block, still on its supporting plate, is taken, e.g. by roller conveyers, first to a drying store and then to the furnace.