baber/WOPTO huggingface dataset:
Patent GB-915149-A (GB)
Title: Built-in switch for insulated portable electric tools
IPC: H01H1/16
Filed: 1961-07-17
Abstract: 915,149. Retractive switches. SINGER MANUFACTURING CO. July 17, 1961 [Aug. 2, 1960], No. 25745/61. Class 38 (5). Lugs 12, 13 formed integrally with the moulded insulating housing 10 of a portable electric tool have frictionally secured to them conductive wire terminals 16, 19 to form stationary switch contacts which can be selectively bridged or unbridged by a spring-biased conductive element 24 carried by an insulating trigger 20. The trigger 20 is biased to the unbridged position by a spring 25 in which position the ball 24 engages a third lug 14 also formed integrally with the housing 10 but carrying no conductive terminals. The pocket 21 in the trigger 20 in which the ball 24 is located provides sufficient clearance for the spring 23 so that it produces snap action.
Patent GB-988774-A (GB)
Title: Data handling system
IPC: G11C29/00
Filed: 1961-07-18
Abstract: 988,774. Superconductor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 18, 1961 [July 29, 1960], No. 25948/61. Heading H3B. In a data handling system using cryotrons, or similar inhibiting devices, circuits in -successive stages of the system perform logical operations and can be tested individually. Redundant circuits are included in a single stage, the output of the stage being derived from the circuits by a majority circuit. A fault in a single circuit does not affect the output of the stage. Symbol 1, Fig. 1a, represents a cryotron 7, Fig. 1b. Conductors 5, 9 control conductors 3, 11. By-pass control for testing, Fig. 7.-Alternate paths from terminal 60 signal 1 " or "0" under the control of arrays 58, 59 representing a function (f) and negation of the function (f). In normal use of the system, no currents are applied to terminals 67 to 70, but for testing, currents on terminals 67, 68 disable the outputs from functional arrays 58, 59 and a current on terminal 69 or 70 selects the output desired. The last stage of a system can be tested by controlling the penultimate stage to feed selected signals to the last stage. When the last stage has been tested and found correct, the penultimate stage is tested by feeding selected signals thereto. Bias control for testing, Fig. 8.-In normal operation, cryotron 74 is operated to de-couple the two output leads 65<SP>1</SP>, 66<SP>1</SP>, the output being determined by functioned arrays 581, 591. For testing, the cryotron 74 is allowed to lapse into its superconducting state to couple leads 651, 66<SP>1</SP> and one of the cryotrons 75, 76 is operated to select the desired output. Redundant circuits, Fig. 1.-Identical arrays A, A<SP>1</SP>, A<SP>11</SP> representing functions f<SP>1</SP>, f1<SP>1</SP>, f1<SP>11</SP> are controlled by identical sets of input signals an to al, a<SP>1</SP>n to all, a<SP>11</SP>n to a<SP>11</SP>l to feed binary outputs on line pairs to majority circuits M, M<SP>1</SP>, M<SP>11</SP>. Outputs f2, f<SP>1</SP>2, f<SP>11</SP>2 are normally identical but an error in one output is eliminated in a further majority circuit (see later). Majority circuit, Fig. 12.-A " 1 " signal on all three or on any two of terminals 81, 82, 83 gives a " 1 " output on terminal 85. Date handling system, Figs. 13, 14.-Majority circuits 175 are fed through three channels including logical arrays 151, 153, 155 controlled by signals a, b, a<SP>1</SP>, b<SP>1</SP> and all, b<SP>11</SP>. By-pass circuits 163, 165, 167 facilitate testing. Three majority circuit output pairs 176, 177, 178, 179 and 180, 181 feed logic arrays 183, 185, 187 which use further identical inputs c, c<SP>1</SP>, c<SP>11</SP> to derive further functions f2, f<SP>1</SP>2, f<SP>11</SP>2 and f3, f<SP>1</SP>3, f<SP>11</SP>3 which are fed to majority circuits 213, 214. As shown, bias control circuits are included in the outputs of logic arrays circuits 183, 185, 187 for testing purposes.
Patent GB-1481015-A (GB)
Title: Bonding of a semiconductor device to an electrical conductor on a supporting substrate
IPC: H01L21/60
Filed: 1974-06-25
Abstract: 1481015 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 25 June 1974 [25 June 1973] 25989/74 Heading H1K [Also in Division B3] In bonding a semi-conductor device to a conductor on a substrate by solder, the device is placed on the substrate with a solder pad on the device in contact with the conductor and the solder pad is reflowed, a ternary intermetallic including palladium being dispersed within the solder and the palladium being derived from a layer thereof provided on the device. A semi-conductor chip 70 comprising integrated circuits has deposited thereon a chromium layer 72, a copper-chromium layer 74, a copper layer 76, a palladium layer 78, a lead region 80 and a tin layer 82. The chip is heated to homogenize the structure and then with the solder resolidified is inverted on a printed circuit carrying ceramic substrate 90 carrying a chromium layer 92, a copper layer 94 and a chromium layer 96. At the interface between the chip 70 and the lead-tin solder 98 there exists a thin chromium layer 100, a binary copper-tin layer 102 and a ternary copper-tin-palladium within the solder. Different concentrations 104, 106 of the intermetallic exist in the solder. A similar prior art system is described in which instead of the palladium layer a gold layer is used and a binary copper-tin zone is produced. Reference is made to Specifications 1,159,979 and 1,143,815.
Patent GB-1509395-A (GB)
Title: Chronometric device
IPC: G04F5/10
Filed: 1975-06-18
Abstract: 1509395 Electronic timepieces BICOSA SOC DE RECHERCHES 18 June 1975 [19 June 1974 11 July 1974] 26036/75 Heading G3T [Also in Division H3] An electronic timepiece comprises an LC transistor oscillator circuit (110 Fig. 2) to provide a timing Reference signal which is applied via a capacitor 124 to a frequency divider 112 having an output at 1HZ to a decoder 113 which is connected to drive an electro-optical display unit 111 (e.g. liquid crystal). In addition the relatively high voltage (e.g. 7 volts peak) produced by inductor 119 is coupled via a diode 122 to the decoder to activate appropriate segments of the display unit 111. The LC resonant circuit includes the inductor 119 and the intrinsic capacitance of the junctions of transistors 115, 118 and of the inductor. A capacitor 120 plays no significant part in determining the oscillation frequency, its capacitance being low compared to the stray capacitances, and serving primarily to isolate the collector of transistor 118 from the base of transistor 115. The inductor may have a ferrite core. In an embodiment Fig. 3 (not shown) the inductor has primary and secondary winding on the same core whereby the collector of a transistor is coupled to the base thereof. The power source may be a mercury battery. A Zener diode (127) and capacitor (128) Fig.3 (not shown) may be used to stabilize the supply voltage. Suitable component values are given.
Patent GB-846246-A (GB)
Title: Improvements in rockets carried in clusters by a launching machine and in particular by an aircraft
IPC: F41A19/69
Filed: 1958-08-13
Abstract: 846,246. Suspending and launching rockets from aircraft. BREVETS AERO-MECANIQUES S. A. Aug. 13, 1958 [Aug. 27, 1957], No. 26055/58. Class 9(2). Electrically-fired rockets I, II, III are suspended horizontally beneath an aircraft wing, 1 in vertical rows, each rocket being supported by its slidable tail unit 3 and a frangible screw 6 which passes through a retractable member 5 of the rocket immediately above. On closing the firing switch 12 electricity from a source 8 passes successively through the conductors 10 and retractable members 5 of the superior rockets to the switch 14 and primer 7 of the lowest rocket, the circuit being completed through the metallic framework 9 of the rockets and aircraft. The switch 14 in each rocket is actuated by the retractable member 5 of the same rocket, whereby so long as the member 5 is in the vertical position (as when it supports the rocket immediately below) the primer 7 of the same rocket is short circuited and earthed to the metallic framework 9. When the rocket next below is fired, the screw 6 is broken and the propellent gases of the departing rocket urge the member 5 to the retracted or horizontal position, actuating the switch 14 and thus pulling the premier 7 in the firing circuit. Thus each rocket is fired in succession from the lowest. Delay means (which may be mechanical, electrical hydraulic or pneumatic) are provided. For safety in storage and transport a switch 15 shuts circuits and earths primer 7 except when the rocket is leaving from the aircraft or another rocket. Provision is made for single shot firing. Specifications 610,685, 738,870 and 771,852 are referred to.
Patent GB-338241-A (GB)
Title: Improvements in and relating to rotary internal combustion engines
IPC: F01C1/44
Filed: 1929-08-27
Abstract: 338,241. Meyer, R. J. Aug. 27, 1929. Working-fluid supply; fixed-abutment type; packing vanes; balancing moving parts; d,ischarge and suction pipes and passages for pumps, blowers, and exhausters. - Gaseous fuel compressed by a compressor A passes through a non- return valve 68 and a hand controlled valve 81 to an inlet port 41 of the engine B. The fuel fills a pocket 42 of an eccentric rotor 14 and is fired by a plug 61. Exhaust takes place through a port 62. Hollow pivoted vanes affixed to shafts 45 rock in recesses 53 of the rotor and have holes 57, Fig. 1, pierced in their outer walls in that part not exposed to the inlet port 41. End discs 15 on the sides of the rotor rotate in recesses 39 in packing rings 40. Passages 38 through the rotor connect the side chambers 36 and 37 for pressure equalizing purposes. Each vane is caused to press against the casing wall by a spring 52 which bears on a lever fixed to shaft 45 and has a weighted portion to balance part of the centrifugal force of each vane. Vane packing strips 54 are fixed in each rotor. The compressor piston vanes are similarly constructed but the bearing edges 55 move in front of the shafts 45 instead of trailing as in the engine, Fig. 2. The angle between a line passing through the centre of the rotor and the centre of the pivot 45, and a line through the centre of the rotor and the face of the packing 54 lies between 21¢‹ and 31¢‹.
Patent GB-443501-A (GB)
Title: Golf-ball lifting device or pick-up
IPC: A63B47/02
Filed: 1935-08-26
Abstract: 443,501. Picking up golf balls. HAMILTON, T. A., Yoredale, Clarence Road, Hale, Cheshire. Aug 26, 1935, No. 26146/34. [Class 61 (ii)] A golf ball lifting device comprises a tube a provided with a handle b and having the lower end enlarged and slit forming one or a number of springy tongues c, each provided with a semi-spherical indentation e.
Patent GB-458616-A (GB)
Title: Improvements relating to tank stabilising installations for ships
IPC: B63B39/03
Filed: 1935-09-20
Abstract: 458,616. Stabilizing ships. BARON, H., 231, Strand, London.-(Siemens Apparate und Maschinen Ges.; 4, Askanisher Platz, Berlin) Sept. 20, 1935, No. 26157. [Class 113 (i)] In non-activated tank installations for stabilizing ships a vigorous transfer of stabiliz. ing liquid at the moment when the ship rolls or pitches through its mean position is ensured by the operation of a shutting-off device which is controlled in rhythm with the oscillations of the ship. The drawing shows the condition of the liquid in the tanks 1, 2 connected by the conduit 3 at the instant of the ship passing through the mean position on an anti-clockwise roll. Water tends to flow from the tank 2 to the tank 1, but the movement is throttled by the valves 7 and 8 in the open pipes 4, 5. At this instant the valves are opened to secure the rapid transfer of liquid between the tanks. The mechanism for controlling the valves comprise hydraulic cylinders 10a, 10b, 11a, 11b, the piston rods of which can be moved to block the stem of a gravity device controlling the valves. The hydraulic cylinders are activated to repel and advance the piston-rods through the hydraulic slide-valve 14, the slider of which is operated in one direction or the other by the bell-crank levers 16, 17 operated by the electromagnets 18, 19. These electromagnets are energized in turn as the ship passes through its mean position from the gyroscopic or other pendulum 29 and the follow-up motor 28, the shaft 27 of which operates the switch arm 21, moving between the contacts 20 which control the electromagnets. Between the switch-arm 21 and the motor shaft may be interposed a phaseregulator comprising a spring-member 23 interposed between the shafts 27, 22 and controlled by hydraulic damping cylinders connected by a conduit with interposed throttle valve. This device is employed to obtain a delayed release of the shut-off device.
Patent GB-430649-A (GB)
Title: Improvements in or relating to apparatus for use in retorts for distillation treatment of materials containing hydrocarbons
IPC: C10B1/10
Filed: 1933-09-23
Abstract: 430,649. Rotary retorts. BROCKLEBANK, E. W., Fern Dell, New Penkridge Road, Cannock, Staffordshire, and MITFORD, W. B., Fleetwood, Chessington, Surrey. Sept. 23, 1933, No. 26290. [Classes 51 (ii) and 55 (i)] Metal rollers 16 are provided with spikes 19 for removing coke from the internal surface of a rotary retort 11. These rollers, which roll on the internal wall of the retort, may be formed from rods or pipes, and are coupled by yokes 29, eye-pins 30, and links 35, the eye-pins having collars 33, 34 enabling the pins to turn freely on their axes. The ends of the rollers are flexibly connected by chains 21 to the ends of the retort. Specification 393,601, [Group III], is referred to.
Patent GB-1279579-A (GB)
Title: Bistable circuit
IPC: H03K3/012
Filed: 1971-04-19
Abstract: 1279579 Bi-stable circuits ITT INDUSTRIES Inc 19 April 1971 [16 April 1970] 26302/71 Heading H3T A bi-stable circuit comprises two crosscoupled transistors T1, T2 and an additional transistor T41 of complementary type to transistors T1, T2 having its collector connected to the collector of T1, its base to the collector of T2 and its emitter to a power line via a resistive impedance R. Thus the resistive impedance serves as the load for both transistors T1, T2 via the collector-emitter and emitter base paths of T41. A further additional transistor T42 may be added as shown. The resistive impedance may be a resistor or a transistor constant current source. Control transistors T21, T22 of like conductivity type as transistors T1, T2 may be connected in shunt with transistors T1, T2 as shown and auxiliary transistors T31, T32 of like conductivity type as transistors T41, T42 may be used for steering. Signals are capacitively applied via reverse biased diodes D1, D2. Respective resistors may be connected in series with the base circuits of T31, T32. When two additional transistors are used, the impedance R may serve several bi-stables. The circuit may be integrated.
Patent GB-791700-A (GB)
Title: Improvements relating to hypodermic syringes
Inventor: EVERETT SAMUEL JAMES
IPC: A61M5/28
Filed: 1955-09-14
Abstract: 791,700. Hypodermic syringes. EVERETT & CO., Ltd., S. & R. J. Sept. 5, 1956 [Sept. 14, 1955; Oct. 17, 1955; July 16, 1956], Nos. 26318/55, 29549/55 and 21973/56. Class 81 (2). A hypodermic needle is enclosed within a filled syringe cartridge and is pulled through the end closure to its operative position by a connection member attached to the inner end of the needle and extending through or around the closure. As shown, the needle 5 is partially embedded in the closure plug 3 and has a member 6 attached to its inner end between two stops 7, 8. The two sides of the loop 6 pass between the plug 3 and the glass wall of the cartridge, the resilience of the plug ensuring retention of the contents. In order to enable the whole of the contents to be expelled fully, recesses 11, 12 in the closure plug 3 and piston stopper 2 allow these to be pressed close together. In other forms only a single connecting piece is used instead of the loop 6 and the inner end is attached to a cross-piece secured to or bearing on the needle and extending across the bore of the cartridge. The end 13 of the barrel may be curved inwards to prevent displacement of the plug 3 or a suitable stop may be provided on the cartridge holder assembly. The holder also has a hook or other device to which the connection piece 6 is secured during use of the syringe to ensure that the needle is not pushed back through the stopper while being inserted in the patient. Specification 776,768 is referred to.
Patent GB-744515-A (GB)
Title: Improvements in or relating to a machine for making cap screws or similar articles
IPC: B21K1/46
Filed: 1953-09-24
Abstract: 744,515. Forging screws. NATIONAL MACHINERY CO. Sept. 24, 1953 [Oct. 10, 1952], No. 26371/53. Class 83 (4). A machine for making socket head cap screws comprises a frame having a blank holding die 11, a reciprocating header slide 10 mounted on the frame and driven by a crank-shaft 54 through a pitman 51 pivoted to the header slide at 53, a die sleeve 14 slidably mounted in the header slide and adapted to surround the head of a blank 56 disposed in the holding die, a stripper sleeve 21 slidable in the die sleeve, a socketing punch 24 slidable in the stripper sleeve, means operatively connecting the stripper sleeve, punch and pitman to positively retain the punch and stripper sleeve stationary whilst the header slide moves away from the holding die, and means operatively connecting the stripper sleeve and pitman to retain the stripper sleeve stationary during further retracting movement of the header slide during which the.punch is withdrawn from the blank. The machine is similar to that described in Specification 677,937, in which the die sleeve 14 is slidable in the header slide by compressed air admitted through an inlet 17 and encloses the head of the screw blank 56 whilst the socket is punched therein. During the return stroke of the header slide, a surface 16 thereof engages the die sleeve 14 and withdraws it from the blank. Meanwhile the punch 24 and stripper sleeve 21 are both held stationary relative to the blank, so as to prevent the latter from being withdrawn from its holding die 11, by levers 36, 34 which act on the punch and sleeve respectively through slidable members 42, 41, 31 and 39, 38, 37 respectively. The levers are pivoted at 43 to the header slide and have cam surfaces 58, 59 co-operating with a follower roller 44 mounted on a toggle linkage. 46, 47. After withdrawal of the die sleeve 14 a surface 29 on the latter engages a block 26 connected to the punch and withdraws it from the blank. The stripper sleeve is still held stationary by its operating levers 34 and the toggle linkage, thereby retaining the blank in its holding die 11. A conical surface 23 on the die sleeve then engages the conical head 22 of the stripper sleeve and withdraws the latter to permit release of the blank from the die 11.
Patent GB-865975-A (GB)
Title: Measuring arrangement for radio frequency power
Inventor: KEJZLAR MILAN
IPC: G01R21/00
Filed: 1957-08-21
Abstract: 865,975. Power measurement. TESLA, NARODNI PODNIK. Aug. 21, 1957, No. 26385/57. Class 37. A microwave power measuring arrangement comprises a two-stage D.C. amplifier having a first grounded grid stage 1 controlled by a thermistor T, and a second stage 2 controlled by the anode voltage of the first stage; the thermistor forming a joint cathode resistance for both amplifier stages whereby its resistance, before and while microwave power is supplied to it, is maintained constant; means MI being provided to indicate the variation in D.C. power fed to the thermistor by the amplifier. Microwave power dissipated in thermistor T reduces the resistance thereof, thus decreasing the anode voltage of valve 1 and in consequence the cathode current of valve 2. The reduction in D.C. power dissipated across T by the change in this cathode current is arranged to balance the incident microwave power and thus maintain the resistance of the thermistor constant. The variation of the cathode current of valve 2 thus provides an indication of the incident microwave power, a direct reading of which is provided by a milliwattmeter MI connected between the cathode of valve 2 and a potentiometer tapping P. Resistors RS1, RS2, RS3 provide different measuring ranges, zero adjustment of the meter MI being effected by the tapping P.
Patent GB-443694-A (GB)
Title: Improvements in or relating to wedge block supports, particularly for use in coal and like mines
IPC: E21D15/60
Filed: 1935-09-24
Abstract: 443,694. Wedges. HEWITT, T. H., Hill Side, Tunnel Road, Ansley, Nuneaton, Warwickshire. Sept. 24,1935, No. 26388. [Class 89 (ii)] [See also Group X] A wedge-block or chock, particularly adaptable for supporting the material above a coal cut and for use with a mine-roof prop 18, comprises upper and lower wedge-members 1, 2, having overlapping oppositely-directed checks 5 on each side, and an intermediate wedge-member 4. The three members are interconnected by a pin or bolt 10, the arrangement being such that the upper and lower members have relative freedom of movement in a vertical direction while the member 4 is free to slide horizontally. To provide for such movements, the checks 5 and the wedgemember 4 are formed respectively with vertical slots 9 and a horizontal slot 8, through which slots the bolt 10 passes. The parts are locked in the adjusted position by nuts 11. The upper surface of the member 1 may be provided with serrations 14 or the like for gripping purposes, and with an end rib 15 by which the device may be correctly positioned. The upper and lower faces c of the inner wedge-member are joined by three vertical webs 7 as shown in Fig. 2.
Patent GB-740942-A (GB)
Title: Improvements relating to heat-resisting alloy steels
IPC: C22C38/58
Filed: 1953-09-24
Abstract: A heat-resisting austenitic steel consists of: 0.05-0.45 per cent C; 16-27 per cent Cr; 10-30 per cent Ni; 6-8 per cent in total of Co and Mn; 6-8 per cent in total of Mo, W and Nb and/or Ta; the balance Fe and impurities; the Co and Mn being present in approximately equal amounts (i.e. within \sB 0.5 per cent of exact equality) and the Mo, W and Nb and/or Ta being present in the relative proportions (3\sB 0.8) : (2\sB0.8) : (1\sB0.8).  Si up to 2 per cent, B up to 1 per cent and nitrogen up to 0.2 per cent may also be present in the steel.
Patent GB-463251-A (GB)
Title: Improvements relating to the preparation of shoe linings for cemented shoes
IPC: A43D37/00
Filed: 1935-09-24
Abstract: 463,251. Roughening leather. COMPO SHOE MACHINERY CORPORATION. Sept. 24, 1935, No. 26432. Convention date, Sept. 27,1934. [Class 60] [Also in Group VII] A machine for Toughing the margin of a shoe lining comprises a rotating disc 16 to which is secured by a washer 22 a paper disc faced with grit. The disc is on a shaft mounted in ball bearings 13 in a casing adjustable up or down by a hand wheel 56. A spring 57 urges the abrading disc towards the work. A driven feed wheel has a knurled conical surface 26 and a fiange 25. A second feed member comprises a rotating disc 37 driven by a friction clutch 38, the disc determining the width of the abraded portion. A spring 34 holds the clutch members in engagement and also urges the disc toward the work. An adjustable gauge comprises a step 54 engaging the edge of the lining and a yielding portion pressing the work against the surface 26. Beyond the tool the finished work is deflected towards the operator by a curved guide plate. The cutting particles of the abrading disc form parallel arcuate grooves across the margin of the lining.