baber/WOPTO huggingface dataset:
Patent GB-841730-A (GB)
Title: Improvements in relief valves
Inventor: PACKENHAM EDWARD WILLIAM
IPC: F16K17/04
Filed: 1958-01-10
Abstract: 841,730. Valves. INTEGRAL Ltd. Nov. 4, 1958 [Jan. 10, 1958], No. 1084/58. Class 135. A piston valve 11 loaded by a spring 17 and opening to relieve excess pressure to an outlet 16 when the inlet pressure, applied at 14 to the end of the piston, overcomes the force of the spring has a waisted portion 12 of the piston and a surrounding chamber 18 so formed that fluid entering the chamber is caused to circulate to apply an opening force to a curved shoulder 23 of the valve.
Patent GB-1164391-A (GB)
Title: Improvements in or relating to a Roadway for Wheeled or Track-Laying Vehicles
IPC: E01C9/08
Filed: 1967-01-10
Abstract: 1,164,391. Temporary roadways. THYSSEN ROHRENWERKE A.G. 10 Jan., 1967 [11 Jan., 1966], No. 1255/67:Heading E1G. A temporary roadway is composed of hexagonal plates 5, one edge of each pair of edges being provided with. holding element 3 extending in the direction of the edge and engaging below and supporting an edge of an adjacent plate. The plates may have reinforcing, which may be a tube 6, extending round the edges. The plates have holding elements on alternate edges, which elements may be rigid or fold relative to the plate. Supporting means 8 may be provided under the plates 5.
Patent GB-567607-A (GB)
Title: Improvements in and relating to tin openers
IPC: B67B7/40
Filed: 1944-01-24
Abstract: 567,607. Tin - openers. KORNFELD, W. Jan. 24, 1944, No. 1260. [Class 66] A key for opening sardine &c. tins comprises two parts a, b with sleeves c, f secured thereon by indents e, g so that the ends of the part a can be inserted in the sleeve g and leave a slot d for engaging the tongue on a tin. The parts a, b are made of wire or the like, preferably of semicircular cross-section. One part may be secured to a clip on the other part for storage or one of the handles may have a gap for receiving the other handle.
Patent GB-700490-A (GB)
Title: Improvements in and relating to the making of connection between multicore electric cables
IPC: H05K3/32
Filed: 1949-05-11
Abstract: 700,490. Electric coils. STRONG, H. V., and EISLER, P. May 11, 1950 [May 11, 1949], No. 1280/52. Divided out of 700,458. Class 35. [Also in Group XXXVI] The ends of a length of multicore cable of tape form having flat section-cores are joined together (see Group XXXVI) with said ends displaced one corepitch so as to form a coil with ends 69, 70 to which lead-wires may be attached. If the ends are displaced two core-pitches, two separate circuits are formed and so on.
Patent GB-534993-A (GB)
Title: A process for improving compressed yeast
IPC: C12N1/04
Filed: 1940-01-22
Abstract: 534,993. Yeast. ELION, L. Jan. 22, 1940, No. 1293. Convention date, Jan. 25, 1939. [Class 14 (ii)] The tendency of compressed yeast to crumble is reduced by mixing with the yeast before pressing or at any other stage, a small proportion of magnesium or calcium carbonate or a mixture thereof. The lightness of colour may be enhanced by a mixture of an emulsifying agent such as ammonium soap, or a fatty acid ester of a polyhydric alcohol.
Patent GB-109730-A (GB)
Title: Improvements relating to Leather Bags or Cases.
Inventor: HOUGHTON GEORGE WILLIAM
IPC: A45C3/00
Filed: 1917-01-26
Abstract: 109,730. Houghton, G. W. Jan. 26,1917. Hand and like bags; suit cases.-A leather attachÚ case, suit case, &c., is made from a composite blank formed by stitching and riveting four parts a, c, f to a central portion e intended to form the back of the case. The bottom blank c and the top blank a have integral extensions d, b, which are bent at right-angles to the parts c, a to form respectively the front of the case and the turned-down part at the front of the top of the case. The turned-down parts g at the ends of the top a are formed from separate pieces of leather. When the case has been erected, the meeting edges are secured by stitching. The front of the case is provided with a handle. The lid may be arranged to turn about its junction with the back e, but, when it is desired to hinge the lid along a line 5, 6 below the upper edge of the back e, the parts f are notched at j, and the end pieces g are secured to the upper portions of the back. The leather may be backed by cardboard, &c.
Patent GB-680881-A (GB)
Title: Improvements in and relating to locking means for rotary central buffers
IPC: B61G7/04
Filed: 1951-01-17
Abstract: 680,881. Coupling-buffers for railway vehicles. GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES. Jan. 17, 1951 [Nov. 21, 1950], No. 1331/51. Class 103 (v). A locking device for rotary central coupling- buffers, for trucks which are emptied by rotary tippling, is characterized in that the coupling- buffer, preferably a stop projecting from its underside, is engaged by a locking arrangement projecting from the track and capable of being lowered, which prevents rotation of the coupling-buffer relative to the track. In the embodiment shown, buffers 2 on trucks 1 carry couplings 3, and projections 4 which are engaged by a U-shaped member 5 when a truck is to be tipped. The member 5 is carried on the arms 6, 6<1> of two pairs of bell-crank levers, the other arms 7, 7<1> of which are connected by a link 8 and to an operating device, e.g. a compressed air cylinder 10. After tippling, the member 5 is lowered to the position shown in dot-dash lines.
Patent GB-1376244-A (GB)
Title: Method and apparatus for the manufacture of concrete products
IPC: C04B24/26
Filed: 1972-01-12
Abstract: 1376244 Fast-curing concrete panels U S TERRAZZO PANELS Inc 12 Jan 1972 [14 Jan 1971] 1356/72 Heading B5A [Also in Division C1] Concrete articles such as terrazzo panels are made by compressing in a mould a mixture comprising 20-25% by weight of hydraulic cement, 60-75% by weight of aggregate, 1-2% by weight of a vinyl acetate-dibutyl maleate copolymer and 5-10% by weight of water. The compressed mixture is removed from the mould and then cured in an atmosphere of CO 2  gas so that it undergoes an exothermic temperature rise of at least 20‹ F. in less than 5 minutes. Portland cement is used with aggregates of sand, gravel, marble or granite dust or chips, crushed limestone, quartz crystal dust, seashells, broken and coloured glass, and crushed concrete, mortar or bricks. The aggregate has mixed fine and coarse particles to give less than 1-4% volume of voids. The water includes dies or pigments. The vinyl acetatedibutyl maleate copolymer comprises 77% by weight of vinyl acetate and 23% by weight of dibutyl maleate in an emulsion form with polyvinyl alcohol as the colloid. As described, the dry components are mixed, sprayed with a mixture of copolymer and water, and blended in a double screw blender 10. The mixture is screwfed to a high pressure hydraulic press 14, fed into a mould 18, and compressed at more than 1 million 1b./sq. yd. to form a panel. The panel 22 is ejected by a plunger 20 on to an open mesh conveyer 30, and led into a CO 2  chamber having flexible seals 26, 28. The CO 2  pressure is 1-80 p.s.i.g., and the chamber height 1¢-4 times the thickness of the panel. After about 10 minutes, the cured panel 22 is ground and polished using diamond wheels and a water coolant. Several examples are described.
Patent GB-1407112-A (GB)
Title: Portable sewing machines and cases therefor
IPC: D05B73/10
Filed: 1973-01-10
Abstract: 1407112 Sewing machine cases FRITZ GEGAUF AG BERNINA-NAHMASCHINENFABRIK 10 Jan 1973 [18 Jan 1972] 1367/73 Heading A4B [Also in Division D1] A sewing machine case comprises a pair of side covers 2 or 42, 42 hinged about vertical axes 52 either to an end column 1b of the machine or to the side edges of a plate 2c detachably fitted to the end column 1b. Lower covers 44, 44 may be similarly fitted. The covers may be detachable from their hinges and may be provided with brackets 56, 56' for supporting accessories The plate 2c has projections 5 with grooved ends engaged with a snap action by a spring-loaded plate latch 7. The machine includes a carrying handle 3 extendable from a recess.
Patent GB-1151037-A (GB)
Title: Control System for a Stepping Motor.
IPC: H02P8/32
Filed: 1968-01-10
Abstract: 1,151,037. Control of stepping motors. NATIONAL CASH REGISTER CO. 10 Jan., 1968 [25 Jan., 1967], No. 1385/68. Heading H2J. For stopping a stepping motor, the production of drive current pulses is terminated and a braking current pulse of the same polarity as the drive current pulses is applied to a selected first one of the motor windings upon receipt of the last one of the drive current pulses by a second one of the motor windings, whereby the braking torque tends to reverse the motor. A multivibrator 12 supplies a number of output pulses 14 in accordance with the width of input pulse 10, a clockwise signal CW or counter-clockwise signal CCW being applied to lines 16 or 18 respectively. AND gate 20 is adapted to pass the pulses 14 to a ring counter 22 when enabled by the signal CW, the counter operating in the sequence A, B, C for clockwise rotation of the rotor 82. Alternatively, the signal CCW enables the gate 30 whereby the counter operates in the sequence A, C, B for counter-clockwise rotation. The input pulse 10 is also applied to inverter 32 which supplies pulse 34 to an AND gate 36 which is enabled by the last pulse of a delayed pulse train from delay circuit 38 connected to the multivibrator 12. AND gate 40 or 42 is enabled by the last delayed multivibrator pulse depending on whether the signal CW or CCW is effective. The outputs of the ring counter 22 are individually coupled to OR gates 56, 58, 60, associated with transistors 62, 64, 66 for energizing the motor windings 70, 72, 74 in the desired sequence. The outputs from the ring counter are also coupled selectively to AND gates 44-54, the gates 44, 46, 48 being associated with the gate 40, whilst the gates 50, 52, 44 are associated with the gate 42. Assuming that the ring counter ends in the A count stage after receipt of the last pulse 14, the rotor moving from phase C to phase A, gate 40 produces a short pulse to appear at the input to gate 44. The final count stage of the unit 22 enables gate 56 to saturate the transistor 62, thereby tending to lock the rotor at phase A. The delayed pulse from gate 40, however, initiates an output from gate 60 a predetermined period after the transistor 62 is saturated, the transistor 66 being saturated temporarily to supply a delayed torque which tends to drive the motor towards the phase C winding 74. This brakes the rotor at position A without overshoot or oscillation. When the rotor is moving from the position B to position A, the final stage of the unit 22 being an A count, a delayed braking pulse is applied by transistor 64 in response to an output pulse from gate 58, due to a short pulse from gate 42.
Patent GB-576346-A (GB)
Title: Improvements in or relating to sockets for electric lamp bulbs or the like
IPC: H01R33/46
Filed: 1944-01-25
Abstract: 576,346. Lamp-holders. ANTROBUS, R. S. Jan. 25, 1944, No. 1388. [Class 38 (i)] [Also in Group XXV] A holder for a bayonet-cap lamp comprises a flat body 5 of insulation having a central opening which may be lined with metal 1 and has slots 1a to receive the pins on the lampcap, the contacts 3 consisting of shaped strips arranged radially to protrude into the opening and resiliently mounted to engage the contacts of the lamp. The strips 3 are located in grooves 6 and loosely secured by screws 7 passing through clearance holes in the body 5 and strips 3 and screwed into terminal blocks 4. Springs 8 beneath the heads 7a of the screws 7 provide the resilience and allow the terminal blocks 4 to be raised clear of the grooves 6 for screwing up, both the blocks 4 and the heads 7a of the screws being restrained against rotation when assembled by the sides of the grooves 6, 9. The screws may be inserted from above and the blocks 4 arranged below the body 5.
Patent GB-650435-A (GB)
Title: Improvements in or relating to arrangements for the generation and counting of electrical impulses
IPC: H03K21/02
Filed: 1948-01-17
Abstract: 650,435. Supply meters. GUNNING, P. F. Jan. 17, 1948, No. 1520. [Class 37] [Also in Group XIX] In an arrangement for generating electrical impulses in response to, e.g., the revolutions of an electric meter spindle, to facilitate the counting of such revolutions, a contact M1 is arranged to be connected alternately to potentials of opposite polarity, thus charging a condenser C1 in one direction or the other and sending an impulse to a relay 1A connected by a rectifier bridge RB1 to a point of neutral potential N. General operation. As shown, three contacts M and corresponding circuits are each associated with a kilowatt-hour meter (not shown) arranged to send an impulse to the relay 1A, 2A or 3A each time a given amount of energy is registered. A small quantity of energy (measured on meter 3) is to be subtracted from a larger quantity (measured on meters 1 and 2), e.g. for finding the net output of power-generating equipment. Relays 1A, 2A cause impulses to be sent to a relay X to operate a grand total counter Su, while relay 3A sends an impulse to the binary relay chain O, T, F (described in Specification 650,441, [Group XIX]), until it is cancelled by a subsequent X-impulse. The A-relays can send through impulses only one at a time in a definite priority order, due to a delay relay DEL. Delay circuit. Operation of relay 1A, for example, closes contacts 1A1 in a locking circuit including an individual register R1, which is not operated due to the resistance of the relay, and also shifts contacts 1A2 to complete a circuit from a point N through contacts DEL2 to relays 1B and X. Contacts 1B1 are then closed to shunt contacts DEL2, contacts 1B2 to delay operation of any other B-relay, and 1B3 to prepare a circuit for operating the register R1. Relay X shifts contacts X1 so that an impulse is sent to the counter Su and relay DEL is released thus closing contacts DEL1 to complete the register-operating circuit and release relay 1A thus releasing relays 1B and X. Contacts X1 then again complete the circuit for DEL and the circuit is ready to send through another impulse from an A-relay. Operation of relays 2A, 3A in the meantime merely effects completion of their locking circuits, other operations being prevented due to the shifting of contacts 1A2. In simultaneous operation of two or more A-relays, the uppermost has priority. Relay 3A sends an impulse to relay Y which shifts contacts Y1 to release DEL as before and complete a circuit to the storage relay chain. The locking contacts of the A-relays may be replaced by resistances.
Patent GB-103840-A (GB)
Title: Improvements in and relating to Apparatus for Heating and Circulating Water.
Inventor: COFFIN AMBROSE GILBERT
IPC: F24H1/50
Filed: 1916-02-02
Abstract: 103,840. Coffin, A. G. Feb. 2, 1916. Heating water. - Relates to water-heating apparatus for two separate circulating systems, of the kind comprising a boiler H and a superposed tank G, the water in which is heated by the circulation of water from the boiler through the tank. The boiler and tank are connected together by a flanged tubular piece E fitting over the end of a chamber C in the tank and having a partition separating the ends of the flow and return pipes D, T for the boiler water circulating through the chamber. The flow pipe of a circulating system using the boiler water is connected to an opening A in the side of the tubular connexion.
Patent GB-470807-A (GB)
Title: Improvements in or relating to sliding bearings
IPC: F16C33/20
Filed: 1937-01-19
Abstract: 470,807. Bearings. ELECTROLUX, Ltd. Jan. 19, 1937, No. 1582. Convention date, Jan. 21, 1936. [Class 12 (i)] [Also in Group V] A bearing for rotating shafts comprises an outer metal bearing sleeve 12, and an inner softer bush 11 moulded on the shaft 10 and formed of a porous metal or a porous artificial resin. This bush is moulded in a sleeve 13, heated electrically and pressed by a piston 17, moved by the screw 19. In a modification the mould is formed in two halves and the plunger is pressed in by a vice.
Patent GB-112681-A (GB)
Title: Improvements in Slide Rules.
Inventor: CHRISTINE MAUD ALICE
IPC: G06G1/08
Filed: 1917-02-01
Abstract: 112,681. Christie, M. A., (Christic, R. A.). Feb. 1, 1917. Scale rules particularly adapted for artillery calculations. A disk a is-provided with a range scale f and an ''inclined angle " scale e, that is, the angle formed by the lines joining the observer with the target and the base. The central disk c has a base scale g and an " apex angle " scale h, that is the angle subtended by the base from the target. A cursor d of sector shape is pivoted on the centre.
Patent GB-345722-A (GB)
Title: Improvements in or relating to radio apparatus employing ganged condensers
IPC: H01F21/02
Filed: 1930-01-17
Abstract: 345,722. Inductances. PYE RADIO, Ltd. and ROOT, E. V., 176, Milton Road, both in Cambridge. Jan. 17, 1930, No. 1725. [Class 37.] An inductance coil structure for use in wireless receivers employing ganged condensers comprises separate long and medium wave coils and separate fine adjusting means for each. The Figure shows a medium wave coil adjusted by a disc 9 and a long wave coil 2 adjusted by a cup-shaped member 10. A condenser 8 is provided to compensate for the difference between long and medium wave length aerial capacities when used in a portable receiver. The coils are enclosed in a metal shield 3 which is electrically connected to the members 9, 10.
Patent GB-168816-A (GB)
Title: Improvements in and connected with pumps for lubricators or for other pumping or forcing purposes
IPC: F16N13/10
Filed: 1921-01-12
Abstract: 168,816. Richardson, C. W. Jan. 12, 1921. Pumps with reciprocating and oscillating piston.-A valveless pump for lubricant &c. comprises a barrel 1 with inlet 3 and outlet 4 and a reciprocating and oscillating piston 5 controlling the inlet and outlet. During the suction stroke, the piston is turned so that the ports 7 in the piston are out of register with the delivery port 4; during the delivery stroke it is turned to bring them into register and enable the liquid to pass through the passage 6 and ports 7 to the outlet. The piston is actuated by an eccentric 12, the strap 10 of which carries a cross pin in which the head of the piston is revolubly mounted. An arm 11<x> carried by the strap is connected by a rod 14 to a pin 13 on the piston, so that the movements of the arm impart an oscillating movement to the piston.
Patent GB-574503-A (GB)
Title: Improvements in and connected with electric switches of the ceiling or pull-operatedtype
IPC: H01H17/08
Filed: 1944-02-04
Abstract: 574,503. Actuation of switches. CRABTREE & CO., Ltd., J. A., and MORGAN, R. W. Feb. 4, 1944, No. 2081. [Class 38 (v)] A ceiling type switch has an insulator inserted in the actuating chain at its entry into the switch to provide safety for the user. In the Figure, the ends e of the chain pass into two parallel holes b, b<1> in the spherical insulator a and are retained in position by washers f resting on shoulders formed by changes in cross-section of the holes.
Patent GB-1319373-A (GB)
Title: Disproportionating saturated hydrocarbons
IPC: C07C6/10
Filed: 1971-01-15
Abstract: 1319373 Disproportionating saturated hydrocarbons CHEVRON RESEARCH CO 15 Jan 1971 [16 Jan 1970] 2191/71 Heading C5E Saturated hydrocarbons are disproportionated in the presence of a catalytic mass comprising a group VIb component and a group VIII component, the olefin concentration in the disproportionation zone being maintained at not more than 5 wt. per cent. A preferred catalyst comprises Pt and an alkali metal on Al 2 O 3  admixed with tungsten oxide on SiO 2  particles. The feedstock is preferably propane, n-butane or n-pentane but the disproportionation of alkyl aromatics to products having alkyl groups of different size is included.
Patent GB-470854-A (GB)
Title: Improvements in or relating to elastic bands such as waist bands, for wearing apparel
IPC: A41F9/02
Filed: 1936-01-23
Abstract: 470,854. Elastic bands for garments. ELSBACH, K. Jan. 23, 1936, No. 2219. [Class 141] [Also in Group XXV] An elastic band, e.g. a waistband, for garments, comprising a flat rubber strip stitched to covering layers of stretchable fabric, is characterized in that the rubber strip 4, and the layers 5 of stretchable fabric are stretched by like amounts, and then connected together by a plurality of parallel, straight, longitudinal, rows of stitches 6, so that the band is flat and unwrinkled in the unstretched condition.
Patent GB-555494-A (GB)
Title: Improvements in or relating to footwear
IPC: A43B13/28
Filed: 1942-02-20
Abstract: 555,494. Sole protectors. MAYER, C., and MAYER [nee HERHAUSEN], E. Feb. 20, 1942, No. 2282. Addition to 537,340. [Classes 17 (ii) and 17 (iii)] For mounting sole protectors according to the parent Specification, there is now used a plate 6 of skeleton form and constructed so as to be yieldable in the sense that it is ductile or resilient. The plate comprises a backbone with cross bars 7 having hooks 9 at their ends to engage undercut recesses 4 in the sole pad, the plate also carrying a spring tongue 8 for snap engagement in a recess 5 in the pad.
Patent GB-579568-A (GB)
Title: Solidifying normally liquid hydrocarbons
IPC: C10L7/02
Filed: 1944-02-08
Abstract: 579,568. Solidified liquid fuels. CLARK, D'A. M. (Safety Fuel, Inc.). Feb. 8, 1944, No. 2351. [Class 91] In the solidification of normally liquid inflammable hydrocarbons by the formation in situ of gels of metallic soaps, by reacting a fatty acid and abietic acid or rosin in solution in the hydrocarbon with a saponification agent which is suspended in the solution in a dry pulverulent form, a proportion of an alcohol is added to the stabilized mixture shortly before complete solidification is desired so as to cause the abietic acid or rosin saponification to be expedited. The use of abietic acid or rosin ensures that the mass remains sufficiently fluid for convenient filling of the fuel containers, solidification then ensuing owing to the presence of the alcohol. Slight heating of the mass prior to filling or whilst in the containers may also be used. In a modification of the process, the abietic acid or rosin, with or without the equivalent saponification agent and if desired in suspension in a proportion of the hydrocarbon, is also added to the reaction mixture at a later stage of the process in the presence of, or followed by, addition of the alcohol and proceeding as before. The hydrocarbon to be solidified, the fatty acids (the salts of these are not used in the present invention) and the saponification agents preferably used are all as specified in Specification 576,180 which is referred to. The added alcohol is preferably a primary aliphatic alcohol such as methyl or ethyl alcohol.
Patent GB-491442-A (GB)
Title: Improvements in electric clocks
IPC: G04C3/06
Filed: 1937-01-27
Abstract: 491,442. Electric clocks. LANFRANCONI, F. A., and BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd. Jan. 27, 1937, Nos. 2401 and 16476. [Class 139] In an electric clock of the type in which movement of the balance is maintained by an electromagnet energized intermittently under the control of a contact device actuated bv the balance, the electromagnet is arranged to drive the clock train through the medium of a separate oscillating member mechanically independent of the balance. An electromagnet 8 has two pairs of polepieces 10-13 and is mounted between two independent, hairspring-controlled, armatures 15, 27. The armature 15, by causing the bridging of two contacts 20 at each oscillation, gives intermittent energization to the electromagnet 8, while the armature 27, oscillating in sympathy with the magnetic impulses, actuates the clock train through a step-by-step mechanism. The hair-spring 16 tends to cause the contacts to be closed and, consequently, the clock is self-starting. Specification 491,487 is referred to.