baber/WOPTO huggingface dataset:
Patent GB-363121-A (GB)
Title: Improvements in and relating to manually and automatically controlled electric switches
IPC: H01H37/00
Filed: 1930-12-05
Abstract: 363,121. Automatic circuit-breakers ; thermal switches ; snap-action switches ; control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hutt, L. P. ; Story Avenue, Schenectady, New York, U.S.A.) Dec. 5, 1930, No. 36755. Convention date, Dec. 5, 1929. [Classes 38 (iii) and 38 (v).] A switch 28, 29 for controlling the motor of a refrigerator &c. is operated on and off according to temperature variations in the refrigerator and may also be moved off either manually or thermally by an overload current in the motor circuit. A rise of temperature of the refrigerator causes the expansion of a bellows 20 which moves a pivoted arm 14 to the left and carries an arm 18 past the line of a spring 27 which thereupon snaps the lower end of the arm 18 to the right against a stop. The lower end of the spring 27 is now to the right of the pivot 9 of the contact member 26 which therefore moves quickly to the right into engagement with the fixed contact 29. A similar action occurs when the bellows 20 contracts. Adjustment is effected by an adjustable spring 31 bearing on the arm 14 and by an adjustable stop 261. Also mounted on the pivot 9 is a member 23 which bears against the contact member 26 and under the action of a spring 25 tends to hold the switch open. The member 23 may however be moved downwards by hand and be held there by a bimetallic strip 46 mounted in a member 44. The strip 46 is heated by a winding 48 in circuit with the motor and upon overload bends to the right and releases the member 23 so that the switch is opened. The whole member 44 may also be rotated by hand to open the switch. The motor 63 has running and starting windings 61, 62, the former being switched in by the large starting current by means of a relay 50 and held switched in until the motor has reached normal speed. Specification 282,074, [Class 38 (iii), Electric motor control systems &c.], is referred to.
Patent GB-1224538-A (GB)
Title: Electrical terminal block
Inventor: HEATH CLARENCE WILLANS
IPC: H01R13/68
Filed: 1968-08-01
Abstract: 1,224,538. Two part coupling. CARR FASTENER CO. Ltd. 4 July, 1969 [1 Aug., 1968], No. 36755/68. Heading H2E. A plurality of contacts mounted on an insulating body 1 wherein each contact consists of an arm 8a extending normally to one face of the body for engaging an electrical component, a second arm normal to the first extending outwardly of the side wall 7 of the body 1 having a lug 10a adjacent the junction of the arms which engages a lip 5 in the body 1 and a resilient tongue 12a which engages an abutment adjacent the side wall of the body from which the arm extends. In the preferred embodiment a one piece moulding of synthetic plastics constitutes the body 1 of a carrier for cartridge fuses, having two rows of opposed contacts stamped from sheet metal, the contacts in one row having single fuse engaging arms 8 (Figs. 5-7, not shown), the contacts in the other row having double arms 8a (Figs. 8-10, not shown). The contacts are held in the body by the edges of the arms (9), 9a engaging under lips 5 in the body, the lugs (10) 10a engaging lips 5 and the resilient arms (12) 12a engaging the end wall of a recess 4 in which an abutment 6 supports the contact. The ends of the contacts extending outwardly of the body are formed into portions 11, 11a for receiving lead wires. A detachable resilient transparent cover (15) is retained by latching members (17) engaging recesses (3) in the body (Fig. 4, not shown), and a spare fuse is carried in a recess (14).
Patent GB-1392572-A (GB)
Title: Dyestuff salts and process for their manufacture
IPC: C09B67/32
Filed: 1972-08-08
Abstract: 1392572 Dye salts CIBA-GEIGY AG 8 Aug 1972 [10 Aug 1971 11 Oct 1971] 36953/72 Heading C4P [Also in Divisions C3 and G2] The invention comprises dye salts of the general formula wherein A is the radical of an anionic dye, R, R 1  and R 2  are alkyl radicals having a total of 9-23 carbon atoms and n is 1 to 4. The anionic dye may be of the mono- or dis-azo optionally metallized (Cr or Co), anthraquinone, phthalocyanine, nitro, azine, dioxazine, methine, azomethine, quinacridone or quinophthalone series which preferably contain carboxylic or sulphonic acid groups. The dye salts are prepared by reacting the free dye with the amine. They are used to colour cellulose acetates, polystyrenes, polyamides, natural and synthetic resins, cellulose ethers, nitrocellulose, polyvinyl acetates, polyacrylic resins, lacquers, metal foils, paper and glass.
Patent GB-1015608-A (GB)
Title: Improvements in binary systems for coding the position of a shaft
IPC: G08C19/46
Filed: 1963-09-20
Abstract: 1,015,608. Electric selective signalling systems. C.S.F.-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FILS. Sept. 20, 1963 [Sept. 28, 1962], No. 37190/63. Heading G4H. A shaft position encoder comprises gear coupled coarse and fine Selsyn-type resolvers whose outputs are digitized and is characterized in that the coarse resolver includes an additional stator winding controlled by the highest bit from the fine resolver to prevent transitional errors. Each resolver, Fig. 3, includes a stator winding 4 and two mutually perpendicular rotor windings 6, 7. The coarse resolver also includes an additional stator winding 5 perpendicular to the main stator winding 4. The outputs from the resolvers are digitized in the following manner. With a stator 4 voltage of cos wt. the rotor windings 6, 7 produce voltages e 1  = cos wt. cos # and e 2  = cos wt. sin # respectively. The voltage e 2  is phase-shifted 8 by 90 degrees to give a voltage u = sin wt. sin # which is added 10 and subtracted 9 from the voltage e 1  to give voltages e 1 +u = cos (wt. - #) and e 1  - u = cos (wt.+#) which voltages differ in phase by 2#. This phase difference is digitized by starting a count 13 of clock pulses 17 when the voltage e 1  - u passes positively through zero and transferring the count reached via gates 14 to a register 15 when the other voltage e 1 +u passes positively through zero. Thus the register 15 indicates the extent of rotation of the resolver rotor and also, since the phase digitized is twice the angular displacement of the resolver rotor the digitized output repeats every half revolution of the rotor. To compensate for this the shaft 1 whose position is to be encoded over a range of one revolution is coupled to the coarse resolver via a 2 : 1 reduction gear. The fine resolver is similar to the coarse and is coupled to it via a 1 : 128 step-up gear. The additional stator winding 5 on the coarse resolver has a small amplitude voltage applied to it either in phase with, or 180 degrees out of phase with, the voltage applied to the main stator winding 4 in accordance with the highest bit of the fine register 35 and its effect is either to increase or to decrease the phase difference between the voltages e 1 +u and e 1  - u as compared to the case when no voltage is applied to the winding 5. Thus the coarse output either " leads " or " lags " with respect to its theoretically correct output and the change from lead to lag is so controlled as to prevent transitional errors.
Patent GB-1276895-A (GB)
Title: High efficiency dc-dc converter
IPC: H02M3/337
Filed: 1969-07-24
Abstract: 1276895 Automatic voltage and current control WESTINGHOUSE ELECTRIC CORP 24 July 1969 [8 Aug 1968] 37267/69 Heading G3R [Also in Divisions H2 and H3] A D.C./A.C./D.C. converter, e.g. for charging a pulse forming network 54 which produces a pump pulse for a laser system 56, operates in "D.C. Resonance" mode and comprises an inverter including push-pull transistors 16, 18, a step-up transformer 10, and driven by a driver 26 (e.g. a bi-stable multi-vibrator), a D.C. input being applied at 14, 20. The inverter stage output is fed via a choke 30 which limits the rate of rise of secondary winding current and a rectifier 38, to charge the pulse forming network 54. The driver circuit 26 is controlled by a circuit 58 which produces a signal when the load current as sensed by a C.T. 34 exceeds a limit set by a current reference potentiometer 66, which signal switches the bi-stable 26 thereby causing a phase reversal of the current by switching off one transistor and switching ON the other. The voltage across the network 54 is sensed by a potentiometer 73 and compared with a reference value set on a potentiometer 72 and when the pulse forming network 54 is charged to the set voltage level the control circuit 60 feeds a "stop" signal to the driver circuit 58. The inverter stage is thus rendered inoperative and no further energy is added to the pulse forming network until the network voltage falls below the pre-set level. Diodes 22, 24 serve to feed back reactive energy from inductor 30 and transformers to the source 14, 20.
Patent GB-1244119-A (GB)
Title: Improved safety closure for containers
Inventor: ANDERSEN CHARLES MARTINUS BECH
IPC: B65D50/06
Filed: 1969-07-25
Abstract: 1,244,119. Caps for bottles. C. M. B. ANDERSEN. 25 July, 1969 [29 July, 1968; 6 May, 1969], No. 37423/69. Heading B8T. A closure device 5 for a screw or bayonet jointed cap has at least one locking or coupling device movable under the influence of gravitation between two alternative positions one in which the closure is locked and the other in which it is free to be removed. The coupling device may be a ball 10 in a channel 9 or may be a pin (28), Fig. 7 (not shown), in a recess (27). In the locking position, the ball may engage under an annular rib 2 on the container 1, in an axial groove (90) in the annular bead (4), Fig. 4 (not shown), or in an axial groove in the thread 3. To release the locking device the container is inverted, so that the ball 10 runs to the opposite end of the channel 9. A second locking device, a ball 12 in a channel 11 or a pin (34) in a recess (32), Fig. 7 (not shown), in this case in the container, may be incorporated to allow only a limited rotation of the cap while the container is inverted and thereby maintain the seal formed by the expanding gasket 8. In this case, on placing the container upright again the ball 12 runs back in the channel 11 to free the closure which has already been turned sufficiently to prevent the ball 10 sealing under the rib 2 and the cap can be removed freely. The channels 9 and 11 may be joined (13), Fig. 6 (not shown), so that one ball may perform both locking movements. The channels may be formed by the arms (81) of a single tube, Fig. 3 (not shown), each crimped at its free end to prevent the ball dropping out. The locking device may be incorporated in an annular locking sleeve (70), Fig. 2 (not shown), which holds the cap 5 by means of coacting annular flanges (73) and (75) on the sleeve and cap respectively.
Patent GB-343224-A (GB)
Title: Improvements in high boots
IPC: A43B3/02
Filed: 1929-12-06
Abstract: 343,224. Top boots. RANDALL & CO., Ltd., C. W., 143, Shoreditch High Street, London.-(Hood Rubber Co. ; 98, Nichols Avenue, Watertown, Massachusetts, U.S.A.) Dec. 6, 1929, No. 37496. [Class 17 (ii).] A rubber top boot 1 is provided with a flexible waterproof sleeve 2 adapted to be contracted round the leg by a boot lace or the like 5 in a hem 4 formed by turning over the top and securing it to the sleeve. The sleeve 2 is preferably of rubberized fabric cemented to the top of the boot 1 at 3, and can be turned down inside the boot when desired.
Patent GB-1310654-A (GB)
Title: Accelerator operating devices for motor vehicles
IPC: B60K26/04
Filed: 1971-08-10
Abstract: 1310654 Linkwork ZAHNRADFABRIK FRIEDRICHSHAFEN AG 10 Aug 1971 [18 Aug 1970] 37510/71 Heading F2K [Also in Division F1] An accelerator operating device includes an accelerator pedal I which is connected by a connecting rod 3 and intermediate lever 5 to a rotatable shaft 6 which is connected to an injection pump or throttle control linkage 18, the shaft carrying a lever arrangement which is adjustable by a servo motor 15 so that the movement of the throttle or pump linkage 18 can be prevented. Normally the depression of pedal 1 causes movement of shaft 17 and clockwise pivoting of linkage 18. When pressure fluid is admitted to casing 11, e.g. on separation of an engine brake, the bell crank lever 13 is rotated until arm 16 abuts stop 9 so that pivot 21 is aligned with the axis of shaft 6 and unintentional depression of pedal 1 has no effect on linkage 18.
Patent GB-325634-A (GB)
Title: Improvements in or relating to shades for electric lamps
IPC: F21V17/04
Filed: 1928-12-20
Abstract: 325,634. Anns, H. F. Dec. 20, 1928. Shades; mounting shades on electric lamp bulbs.-A suspended electric lamp bulb 3 is fitted with a single shade 1 of bowl form having a central aperture 2 and connected by elastic members 6 to a ring 7 adapted to rest on the enlarged part of the bulb or on the bulb cap. The shade may be of inverted conical form and may be made of parchment, paper, glass, or other material, whilst the aperture is of such a size as will allow the bulb to project a short distance therethrough but will not allow it to pass completely therethrough. The elastic members may comprise short spiral springs and may be attached directly to the shade, to a metal ring 4 surrounding the aperture, or to the radial members 5 of the framework upon which the shade is built. The bulb may be positioned a short distance away from the apex of the shade by means of a ring 8, Fig. 3, engaging the end of the bulb and mounted on struts 9 carried bv the radial members 5, the elastic members 6 being connected at one, end to the ring 7 and at the other end to the ring 8 or to the radial members 5.
Patent GB-1116645-A (GB)
Title: Improvements in or relating to radio frequency transmission paths
IPC: H01R24/44
Filed: 1965-09-03
Abstract: 1,116,645. Matching impedances. AMP Inc. 3 Sept., 1965 [9 Sept., 1964], No. 37642/65. Heading H1W. [Also in Division H2] A coaxial connector for use with an R.F. transmission line comprises inner and outer conductors 4 and 5 which are spaced apart by two different dielectric materials, in the example given an insulating material 6 separated from the cable insulation 1 by air, the dielectrics being arranged in such a way that the transmission impedance at any point in the connector is equal to the transmission impedance of the line itself. At any discontinuity in the diameter of either of the conductors, a change from one dielectric to the other is made, the end portions of the dielectrics being shaped to render the impedance constant. The shaping may be determined graphically or by calculation.
Patent GB-1517389-A (GB)
Title: Electrical switch assemblies
IPC: H01H1/58
Filed: 1975-09-12
Abstract: 1517389 Snap-action switches P R MALLORY & CO Inc 12 Sept 1975 [12 Sept 1974] 37657/75 Heading H1N A switch assembly, suitable for structural combination with a radio volume control potentiometer, for example, comprises an insulating terminal board 12, at least two conductive members (16, Fig. 1, not shown), each secured thereto by parts 26, 28, 30, 32 passing through the board 12 and then deformed, and a conductive spring blade member 18 pivotally mounted for movement between electrical engagement with one and electrical engagement with both of said conductive members (16), the spring member 18 exerting pressure on the conductive members by its own resiliency imposed between the pivot mounting and the members. As shown the conductive members are metal plates having integral plug-in terminals 52, 54 for insertion in a printed-circuit board, or eyelet terminal tags (96, Fig. 4, not shown), and one has a portion 40 forming a pivot for one end 18<SP>1</SP> of a spring blade 18 whose other end 1811 engages a notch 50 in a yet further portion 36 of the said one conductive member or in a gap between a part 44 of said portion 36 and a part 48 of a portion 34 integral with the other conductive member. An actuator 60 carried by a rotatable shaft 62 snaps the end 18<SP>11</SP> between the full line and broken line positions. A cup-shaped housing 14 is attached to board 12 by tangs 58.
Patent GB-1398995-A (GB)
Title: Electric motor drives
IPC: D01H1/24
Filed: 1972-08-11
Abstract: 1398995 Spindle drives SIEMENS AG 11 Aug 1972 [13 Aug 1971] 37670/72 Heading DID [Also in Division F2] A shaft 2 in a spinning machine is engaged and driven at high speed by pairs of friction wheels 7, 9 and 8, 10, the wheels 7, 8 being driven by an electric motor 5 and the wheels 9, 10 being driven by an electric motor 6. A magnet 14 holds the shaft 2 in engagement with the friction wheels. The motors may have internal rotors or external rotors. In a modification, three motors drive arrangements of three friction wheels 13 at each end thereof, Fig. 4.
Patent GB-321102-A (GB)
Title: Machine for sewing turn-shoes
IPC: D05B15/00
Filed: 1928-12-20
Abstract: 321,102. Gill, H. A., (Maschinenwerke zu Frankfurt-am-Main vorm. Kolb, Rieber, Ges. & Co.). Dec. 20, 1928. Chain-stitching.-A machine for sewing turnshoes has a curved hook needle and a loopspreader moving in a plane parallel to the needle path and adjacent thereto. The needle 1 is carried by a segment 10 working on an arc 21 under the influence of a rod 12. The rod 12 is pivoted at 22 to an arm 14 and rides with a roller 15 in a cam groove 25 in the fixed part 16. The arm 14 is oscillated by the pinion 13 and segment 23 which has an extension 18 engaging the cam groove 26 in the wheel 19. The loopspreader 2 is pivoted to the frame at 5 and is linked to the take-up lever 8 by members 6, 7. The needle fits in a bifurcation of the member 2, Fig. 3. With the needle and loop in the position shown in Fig. 6, the work is fed forward. The member 2 moves downwards in a plane parallel to and adjacent to the needle path. The barb 3 enters the loop 4 and returns it while the needle re-penetrates the work, spreading the loop 4 for entry of the succeeding loop pulled up by the needle.
Patent GB-1526077-A (GB)
Title: Vehicle or vessel display instrument
IPC: G01D11/26
Filed: 1975-09-12
Abstract: 1526077 Instrument housings VDO ADOLF SCHINDLING AG 12 Sept 1975 [13 Sept 1974] 37679/75 Heading G1J In an indicating instrument including a cylindrical housing 3 containing a measuring assembly 1 with a dial 2, the front of the housing being sealed by a cover glass 12, a bezel 17 is securable to the front of the housing 3 by an interrupted thread connection 16, 20 having at least one end stop 21 to limit relative rotation, and a resilient ring 22 between the bezel 17 and the housing front endface. Thus, the bezel is secured by being pushed on to the housing front and turned through part of a complete turn, e.g. one eighth of a turn. The front of the housing 3 comprises an enlarged diameter portion 4 into which a retaining ring 13 is screwed to secure the cover glass 12. Ribs 16, 20 forming the interrupted threads, and stops 21 are moulded in the surfaces of the housing 3 and bezel 17, which are of plastics. In a modification, the retaining ring 13 is integral with the bezel 17. The bezel 17 is of opaque, preferably black plastics, and may be chromium plated on its front surfaces. It is square in shape, with a circular window 18 and recess 19. The housing 3 is of transparent plastics, to carry light from a bulb 8 to the front of the dial 2.
Patent GB-875922-A (GB)
Title: Improvements in or relating to an electric current source for arc welding
IPC: B23K9/073
Filed: 1957-12-04
Abstract: 875,922. Automatic control systems for electric arcs. LINDE'S EISMASCHINEN A.G., GES. FUR. Dec. 4, 1957 [Dec. 4, 1956], No. 37793/57. Class 38 (4). The current/voltage characteristic of the supply to a welding arc 6 can be made horizontal (i.e. constant voltage), or rising or falling voltage with varying current, within the limits of saturable reactor 2, by comparing the arc voltage between conductors 10 with a constant reference voltage from potentiometer 9 to which is added (or subtracted, according to the position of switch 15) a voltage proportional to arc current derived from current transformer 16. The unbalance current in control winding 11 of  self-saturating reactor 12 with main windings 19 controls the current in the control winding 3 of the reactor 2 ; the current in a bias winding 13 is adjusted so that control is only operative when the arc voltage falls below its desired value.
Patent GB-1118814-A (GB)
Title: Improvements in or relating to liquid grit blasting apparatus
IPC: B24C5/00
Filed: 1965-09-03
Abstract: 1,118,814. Blasting. AJEM LABORATORIES Inc. 3 Sept., 1965 [3 Sept., 1964], No. 37820/65. Heading B3D. Liquid grit blasting apparatus comprises a blast tube through which a liquid grit blast is passed and a deflector plate mounted at a glancing angle to the blast issuing from the blast tube to deflect and direct the blast. Apparatus, Figs. 1 and 2, is partially submerged, e.g. up to liquid level 20, in a reservoir of liquid containing suspended abrasive grit. Driving liquid under high pressure is supplied through a port 22 to a manifold 24 and ejected at high velosity through jet orifices 26 into blast tubes 28 of larger internal diameter, entraining a considerable quantity of the grit-laden liquid. The outer ends of the tubes 28 pass through a plate 32 to ports in the foot 44 of a deflector 30 which directs the abrasive blast against the workpiece 37. The deflector comprises a plate 36 with end members 40 to prevent undue lateral spread of the blast. In a modification, Fig. 5, the deflector plate 36a has welded thereon mounting lugs 46a which are bolted at 45a to uprights 42a on a foot 44a, so that the deflector plate can be removed and replaced by one of different configuration. The foot 44a has ports 48a and tapped holes 50a for bolting the assembly to the blast tube assembly. In a modification, Fig. 8, the deflector plate 36b is corrugated, the troughs being aligned with the ports 48b in the foot 44b. In a modification, Figs. 9 and 10, the apparatus is mounted on a frame 56 and enclosed in a shield 58. The workpiece 37c is carried on a rotating table 62. Short jet tubes 26c convey the driving liquid to the blast tubes 28c from manifolds 24c supplied through pipes 66. Abrasive slurry is collected below the table 62 and returns to a feed hopper 68 from which it is supplied to the blast tubes 28c. Return pipes 70 conduct the slurry from a collector sump to the hopper 68 via a slurry guide baffle 72. A screen 76 below the table 62 prevents recirculation of over-sized particles.
Patent GB-1129030-A (GB)
Title: Epoxy resin moulding compositions
IPC: C08G59/42
Filed: 1967-08-17
Abstract: 1,129,030. Triglycidyl isocyanurate. HENKEL & CIE G.m.b.H. 17 Aug., 1967 [18 Aug., 1966], No. 37835/67. Heading C3B. Curable triglycidyl isocyanurate (T.G.I.) compositions contain reaction product of T.G.I. and a polycarboxylic acid anhydride. Three combinations are possible: (i) a mixture of a reaction product of from 1-25% of the total quantity of T.G.I. with an anhydride together with the remainder of the T.G.I; (ii) a mixture of the reaction product of from 1-25% of the total anhydride with T.G.I. together with the remainder of the anhydride; and (iii) a mixture of two separate reaction products, (a) reaction product of from 1-25% of the total T.G.I. with 75-99% of the total anhydride, (b) reaction product of 75-99% of the T.G.I. with from 1-25% of the total anhydride. The quantity of polycarboxylic acid anhydride present is such as to provide from 0À6 to 1À2 anhydride groups per epoxy group. The T.G.I. may be crystalline and contain at least 14% by weight of epoxide oxygen. The compositions may additionally contain from 0À5-5% based on the T.G.I. of an accelerator, e.g. trimethylbenzylammonium chloride, triphenylphosphine or dicyandiamide. The compositions may also contain conventional fillers, lubricants, stabilizers, dyestuffs and plasticizers. Up to 1/3 of the epoxy groups in the T.G.I. may be replaced by another epoxy resin, e.g. a diglycidyl ether of a polyhydric phenol.