baber/WOPTO huggingface dataset:
Patent GB-1437109-A (GB)
Title: Plough
IPC: A01B15/12
Filed: 1973-11-20
Abstract: 1437109 Pivoted plough frames D J FARRANT 19 Nov 1974 [20 Nov 1973] 53858/73 Heading A1B A plough comprises a tool supporting boom comprising two boom parts pivotally connected about a vertical axis afforded by rod 26 and tube 35 and forming part of a respective frame 11, 12. The frame 11 is connected to a tractor via a framework which includes a hydraulic jack 22 that governs the relative angle of the frames 11, 12 to the tractor. The frames 11, 12 and framework are supported by wheel assemblies 15 which are aligned by respective hydraulic jacks 32. The boom is also supported by a castor wheel 31. A telescopic connection 28 connects rod 26 to the front boom part at 27 to allow the frames to adjust to ground variations. The plough shares can be lifted from, the: ground by extension of wheel jacks 33 and the boom parts are connected via a universal joint 25. Each boom part comprises sections 13 having a removable wheel or plough share.
Patent GB-1262834-A (GB)
Title: Improvements in magneto design for internal combustion engines
IPC: F02P7/063
Filed: 1970-11-16
Abstract: 1,262,834. Mechanical interrupters; switch contacts. VICTA Ltd. 16 Nov., 1970 [17 Nov., 1969], No. 54444/70. Heading H1N. A shield 5 for the contact breaker points 12, 13 of a magneto comprises an electrically insulating tube 6 with at least one longitudinally extending lateral aperture 9, Fig. 3 (not shown), or 17, Fig. 5 (not shown), in the tube wall and a formation 10 on the tube wall to shift the centre of gravity of the tube 6 towards the aperture so that the aperture is always beneath the breaker points 12, 13. The purpose of the shield is to exclude foreign particles such as dust and the presence of the aperture is to allow any foreign particles that have entered to fall away from the breaker points. When the aperture extends right through the tube wall, as aperture 9, Fig. 3, cooling air can also circulate. The shield 5 is preferably made of an acetal resin.
Patent GB-1500500-A (GB)
Title: Method and apparatus for steam/water separation
IPC: F22B37/30
Filed: 1975-12-08
Abstract: 1500500 Steam separator CLARKE CHAPMAN Ltd 8 Dec 1975 [17 Dec 1974] 54520/74 Heading BIT [Also in Division F4]  A steam/water separator apparatus (e.g. for use in nuclear powered steam generating plant) comprises a vessel 10, steam/water mixture inlets 18 leading to perforated pipes 16, a scrubber assembly 14 which receives the mixture ejected from the pipes, and a perforated baffle 12 through which separated steam passes to an outlet 24. In the arrangement shown each inlet 18 feeds three pipes 16 and each pipe is perforated to direct mixture against the internal vessel wall so that the mixture stream reverses direction towards the assembly 14. Upright hollow columns 60 support superimposed scrubber units 62 and water separated from each unit is directed along a base plate of the unit into the adjacent columns and then within the columns via inclined plates to output 22. The units 62 comprise sets of zig-zag shaped plates of thin metal and each unit is inclined to the vertical.
Patent GB-1485795-A (GB)
Title: Hand-held nibbling machine
IPC: B23D27/02
Filed: 1974-12-20
Abstract: 1485795 Nibbling SANWA SEIKI KK 20 Dec 1974 [21 Dec 1973] 55282/74 Heading B4B [Also in Division B3] In a hand-held nibbler, a piston 5 carrying a blade 54 is mounted for relative reciprocation in a support 6 which also carries a fixed blade 63 and is connected to the tool body B by a ring 66 which can be loosened to allow rotation of the support 6. Since the blade 54 is eccentrically mounted on the piston rotation of the support rotates the blade so that the direction of cut can be varied without moving the tool body. The support is held in the desired angular position by engagement of a pin of the tool body in a flange 65 of one support 6. The piston is reciprocated by a crank-shaft 1, driven via gears 2, 13 by an electric motor or other rotary drive, the crank-pin 14 engaging in a rectangular plate 3 slidable between portions (42), (43), Fig. 2 (not shown), of a guide 4 which has a groove (44) fitting closely about a coaxial extension 52 of the piston 5. A disc 53 secured to the extension 52 rests on guide portion 42. Alternative transmission means, Fig. 3 (not shown), comprise a semicylindrical guide (4<SP>1</SP>) and a disc (3<SP>1</SP>) which has an eccentric pin (31<SP>1</SP>) to engage in the guide (4<SP>1</SP>) and an eccentric hole to receive the crank-pin (14).
Patent GB-1189740-A (GB)
Title: Improvements relating to Contact Electrodes for Semi-Conductor Devices and Methods for the Production Thereof.
IPC: H01L21/60
Filed: 1968-11-22
Abstract: 1,189,740. Electrodes for semi-conductor devices. SEMIKRON GES. FUR GLEICHRICHTERBAU UND ELEKTRONIK m.b.H. 22 Nov., 1968 [24 Nov., 1967], No. 55416/68. Heading H1K. An electrode is applied to a semi-conductor body 1 by applying a first metal layer to the body, applying a second layer of a ductile metal over the first layer, and heating the arrangement to a temperature which is lower than the eutectic temperature between the ductile metal and the semi-conductor but higher than that between the ductile metal and the first metal and between the first metal and the semi-conductor. The layer thicknesses and heating conditions are selected so that the major part of the second layer retains its ductility after heating. Thus, as shown, the final structure comprises the semi-conductor body 1, a layer 4 consisting of a ternary alloy of the semi-conductor and both metals and a layer 3 still comprising the ductile metal. Ge, GaAs and SiC are referred to, but the body 1 preferably comprises Si, the first layer being of Al or Mg and the ductile metal being Ag or Pd. Cu may also be used as the ductile metal, in which case a protective coating 6 of Ag or Au is required. Various methods of applying the metal layers are referred to, including vapour deposition while the body 1 is heated to 200- 300‹ C., cathode sputtering and electrolytic or electroless plating. Alloying is effected at 600-700‹ C. in vacuo or a protective gas. The ductile metal may be applied as two successive laminae and a further layer of the first metal may be situated between the laminµ. Electrical connections may be hard soldered to the ductile layer using eutectic Au/Sn, Au/Ge or Au/Si alloy solders. The invention may be applied to rectifiers, transistors or thyristors and the electrodes so formed may be ohmic or rectifying.
Patent GB-1485478-A (GB)
Title: Beater roll for open-end spinning machines
IPC: D01H4/32
Filed: 1974-12-23
Abstract: 1485478 Open end spinning beater rollers HOLLINGSWORTH GmbH 23 Dec 1974 [24 Dec 1973] 55471/74 Heading DIN A beater roll for open-end spinning machines comprises a roll body 1 with a cylindrical surface on which a saw tooth wire 5 with a transverse root face is wound under tension, adjacent windings being spaced apart and the ends being secured to the roll body. As shown, the wire ends extend into grooves 4 in the body and are locked there by deformation of the side faces of the grooves. The wire may be additionally secured to the body by adhesive. The tooth cross section may be as shown in Fig. 1 or may be of conical form.
Patent GB-1146808-A (GB)
Title: Interchangeable four-track and eight-track magnetic recording and reproducing device
IPC: G11B15/12
Filed: 1967-12-06
Abstract: 1,146,808. Tape recorders. BELTEK K.K. 6 Dec., 1967 [10 Dec., 1966], No. 55524/67. Heading G5R. A tape recorder is set in appropriate operation by the insertion of either a four-track or an eight-track tape cassette, one type of cassette having an aperture for operating a pinch roller in the recorder and distinguishing from the other type of cassette. As shown, an eight-track cassette (which contains its own pinch roller) on insertion into a slot 10 depresses a lug 5 on a leaf-spring 4 so that a cam 3, which is allowed limited rotary play about a shaft 1 carrying a pinch roller assembly 2, remains below the level of the base-plate 6 (Fig. 4(b)) under the action of a spring (8, Fig. 3) wound on the shaft 1, and pinch roller 2 is not brought into action. The underside of a four-track cassette 7b, however, has an aperture 7ba to receive lug 5 and permit spring 4 to raise cam 3 into the path of the leading edge of the cassette 7b which rotates the cam 3 and subsequently the shaft 1 so that pinch roller 2 enters the cassette through the aperture 7ba. A toggle-action spring 1a helps to urge the pinch roller 2 towards the capstan 11, and to return the pinch roller to its original inoperative position when the cassette is withdrawn.
Patent GB-1381706-A (GB)
Title: Water filters
Filed: 1970-11-24
Abstract: 1381706 Loose bed filter J W L NOLAN [trading as WATER FILTRATION ENG SERVICES] 30 Dec 1971 [24 Nov 1970] 55811/70 Heading B1D An apparatus for filtration of water comprises a cylindrical vessel 1 having a flat bottom 2 and water inlets 17 and 18 and outlet 19. The interior of the vessel is divided by annular screens 4 and 7. Coarse filter material 5 and 10, e.g. granite clippings, are packed around the outside of the screen 4 and within the screen. 7. A finer filter material fills the space 11 between the two screens. The screen 7 carries a perforated cover 10a to form a chamber 8 communicating with outlet 19 through a pipe 6 having perforations in its side and a cover 9 at its upper end, the cover also having perforations therein. The perforations in the pipe 6 are of the form of overlapping rows of slit-like apertures (6a, Fig. 2 not shown). During filtration liquid enters at 17 and 18, in the latter case via distributing trough 17a and passes both downwardly and laterally through the filter material before leaving via pipe 6 and outlet 19. The filter material is cleaned by back washing and for this purpose lateral and radial backwash pipes 13 and 15, respectively, are fitted in the vessel 1 and spaced above the floor thereof. The backwash pipes have perforations in the vertically upward direction and downwardly and outwardly to each side. Backwash fluid leaves at 17. An inwardly inclined baffle 12 prevents the finer filter material being carried over. A filter head drain, pipe 25 is also provided.
Patent GB-1284138-A (GB)
Title: Methionine purification
Inventor: BORNENGO MARIO
IPC: F21S8/00
Filed: 1969-11-18
Abstract: 1284138 Methionine purification MONTECATINI EDISON SpA 18 Nov 1969 [18 Nov 1968] 56324/69 Heading C2C A process for separating methionine from the crude reaction product obtained by the hydrolysis of 2-amino-4-methylmercaptobutyronitrile with sulphuric acid and the subsequent neutralization of the hydrolysis product to a pH of from 6À2 to 6À3 with ammonia, comprises heating the crude reaction product in the presence of sufficient water to dissolve completely the methionine, separating the insoluble sludge that is formed and then cooling the remaining solution to crystallize the methionine.
Patent GB-1380426-A (GB)
Title: Multiple gaseous discharge display and memory panel
IPC: H01J17/49
Filed: 1971-12-06
Abstract: 1380426 Gas discharge display panels OWENS-ILLINOIS Inc 6 Dec 1971 [7 Dec 1970] 56507/71 Heading H1D An A.C. operable multiple gaseous discharge display and memory panel has an ionizable gaseous medium consisting of He, Ne, Ar, Kr and/or Xe between opposed dielectric charge-storage members having mutually transverse electrode arrays, at least one dielectric member being constituted, incorporating, or in juxtaposition with at least one photoluminescent phosphor excitable by U.V. of 500 to 2500 Š. 25 To 200 torr for 100% Xe and up to 800 torr for Ne-Ar, (e.g. 99À9 : 0À1), and Ne-Ar-Xe are instanced. The phosphor may be solid, liquid, inorganic or organic, and the dielectric member may be luminescent glass or a phosphor may be within or a coating on the dielectric surface. Many phosphors and methods of deposition are disclosed, and the phosphors may be directly exposed to the gas, or be coated with transparent dielectric. The phosphor layer may be 100Š to 10Á or 1mm. thick and photographically deposited in a pattern. Two or more phosphors produce a multi-colour display and one phosphor may excite the other. Adjacent cross-points may be differently coloured or three colour dot systems employed, individual intensity control being by varying the voltage selectively, varying discharge duration, or by use of multilayers of glass and phosphor and addressing various layers independently. Operational gas mechanisms are discussed, panel dimensions given, and frequencies may be 25 to 300 khz for optimum "memory margin", depending on wave shape and pressure. An example includes detailed panel fabrication procedures and has glass panels with Au electrodes covered with glass. Panels with and without physically confining structures for each discharge unit are mentioned, and also particular forms of display.
Patent GB-1286504-A (GB)
Title: Game apparatus comprising a bobbin and ejector device
Inventor: CRAMP BENJAMIN
IPC: A63B67/16
Filed: 1969-11-19
Abstract: 1286504 Devil-on-two-sticks toy BENTO PRODUCTS Ltd 19 April 1971 [19 Nov 1969] 56571/69 Heading A6S A double headed top 2 is ejected from a device 1 having two interconnected arms 3, 4 one of which, 4, is a single blade arranged to work in a slot 5 in the other, which has two parallel blades 3', 3". The top 2 has an axle with two end parts 16, 16' arranged to engage the blades 3', 3", the end parts having a larger diameter than the middle part 17 which contacts the blade 4 so that the top spins when ejected. The top may have conical or part spherical heads 12, 13. The arms of the device 1 may be scissor-like, Fig. 1; pivoted at their base; or one may be a sliding fit in the other, Fig. 4 (not shown); they may be urged to the open position by springs or elastic 8. The device I and top 2 may be of plastics.
Patent GB-1174100-A (GB)
Title: Improvements in or relating to Double Tool Holders
IPC: B23B27/16
Filed: 1966-12-23
Abstract: 1,174,100. Lathe tools. WILHELM HEGEN-SCHEIDT K.G. 23 Dec., 1966 [24 Dec., 1965; 7 Jan., 1966], No. 57769/66. Heading B3T. A lathe tool comprises two cutting inserts 2, 2<SP>1</SP> secured in a body 1 by screws 7, 7<SP>1</SP> and two chip breakers 3, 3<SP>1</SP> secured in a lever 4 by pins 16. The lever is supported by a screw 10, is longitudinally adjustable by a second screw 12, is clamped by a spring 5, and is transversely adjustable by an eccentric 19. In a modification, inserts 33, 33<SP>1</SP>, Figs. 3, 4, are clamped by a plate 32, chip breakers 37 are soldered in lever 38, and a conical segment 41 of a ring 42 co-operates with a conical recess 40 in the lever. A lever 44 is connected to segment 41, and is guided in an arcuate groove 53, in the lever 38, so that the wedge action of segment 41 due to the tightening of a nut 43 displaces the lever 38 longitudinally, and movement along the arcuate groove displaces the lever in the transverse direction.
Patent GB-1317970-A (GB)
Title: Frequency shift data transmission system
IPC: H04L27/10
Filed: 1970-12-09
Abstract: 1317970 Digital transmission systems; transistor pulse circuits INTERNATIONAL BUSINESS MACHINES CORP 9 Dec 1970 [16 Dec 1969] 58403/70 Headings H3T and H4P In a frequency shift digital transmission system clock signals define the length of each transmitted bit, a full cycle of a carrier signal of frequency f represents one bit state, and a half cycle of a second carrier of frequency 2f represents the other bit state, the leading edges of the clock pulses and the zero or reference value transitions of the full and half cycles being simultaneous. Referring to Figs. 1 and 2, shift register 20 provides serial data D under the control of clock pulses B, data D being sampled at midbit by clock pulses C to provide data train E. By addition of data E to clock B in gate 24 signal F is derived. Signal F is fed to bi-stable 26 which outputs G to transmitter 28 (described below) which delivers frequency shift (double frequency) signals H to the transmission line. The signals transmitted are distorted by the line and arrive at receiver 32 in the form shown at I. Receiver 32 (see below) regenerates the signal and outputs signal J, equivalent to G. Signal J passes direct, and via delay 36 and inverter 40, to gate 38 which delivers M. Signal M is gated at 54 with a clock signal R derived from the received data signals, gate 54 delivering signal T to bi-stable 56 which provides RZ data signal U to the output shift register 58. Clock signal R is derived as shown by units 42, 44, 46, 48, 50 and 52. The transmitter, Fig. 3, comprises transistors 70, 72 which conduct alternately under the control of transistor 98. Transistor 98 is normally held non-conductive by bias 116, capacitor 106, while charging, holding transistor 72 conductive. When the input signal G rises to + 3v. transistor 98 conducts, causing transistor 70 to conduct and current to flow in transformer primary 78, inducing +6v. in secondary 84 to which the transmission line is connected. Capacitor 106 discharges via transistor 98, biasing transistor 72 non-conductive. If now the input signal falls to 0v. transistors 98, 70 become non-conductive and transistor 72 conductive, so that current in primary 80 induces - 6v. in secondary 84. To prevent damage to transistor 70 should the input signal remain at +3v. with consequent saturation of the transformer core, diodes 100, 102 and coil 104 are provided. When transistor 98 conducts for sufficiently long the current in inductor 104 will have risen to such a value that the voltage drop across it renders transistor 98 con-conductive. The receiver, Fig. 4, comprises alternately conductive transistors 130, 132 and step-up transformer 150. Diodes 160, 162 prevent excessive drive to transistor 130 when the signal from the transmission line is too high positive or negative. When the input signal is positive transistor 130 conducts, providing + 3v. at the receiver output. When the signal is negative transistor 132 conducts, providing 0v. at the output.
Patent GB-1208916-A (GB)
Title: A flux for welding titanium and its alloys
Inventor: GUREVICH SAMUIL MORDKOVICH
IPC: B23K35/36
Filed: 1967-12-27
Abstract: 1,208,916. Welding by fusion. INSTITUT ELEKTROSVARKI IMENI E O. PATONA. 27 Dec., 1967, No. 58642/67. Heading B3R. [Also in Division C7]  A flux for welding Ti and its alloys contains by weight: CaF 2  .. .. .. 77À5-99À5% Simple sodium halide .. . 0À5-2À0% e.g. NaF and NaCl. The flux may also contain 5-21% BaCl 2  and is used in automatic argon arc welding at a welding rate of 40-60 m./hr.
Patent GB-1332028-A (GB)
Title: Machine for processing sleeves or other cylindeical workpieces
IPC: B21D19/00
Filed: 1971-12-22
Abstract: 1332028 Beading; flanging; rolling and shearing L SCHULER GmbH 22 Dec 1971 [23 Dec 1970] 59636/71 Headings B3E B3M and B3W A cylindrical workpiece W is beaded, knurled, flanged or trimmed by placing the workpiece on a spindle, e.g. S1, S2 or S3 carrying one or more annular tools Z, moving the spindle along a stationary tool G whilst simultaneously rotating the spindle by means of an infinitely variable positive drive so that slipping between the outer surface of the workpiece and the tool G is eliminated. In the embodiment shown three spindles S1, S2 and S3 are mounted on a head S which is rotationally fixed together with a gear ZS on a rotatable shaft III. The gear ZS and hence the head S is rotated by a motor M via an infinitely variable transmission A and a gear ZR. The spindles are rotated by the transmission train comprising infinitely variable transmissions A, B and drives a, b and c. In a second embodiment (Fig. 3) the drive b is driven directly from the infinitely variable transmission B.
Patent GB-1317699-A (GB)
Title: Torsional vibration damper
IPC: F16F15/167
Filed: 1971-12-22
Abstract: 1317699 Torsional vibration dampers CATERPILLAR TRACTOR CO 22 Dec 1971 [23 Dec 1970] 59725/71 Heading F2S A torsional vibration damper comprises a hub 11, an outer annular inertia weight 22-24 rotatably mounted on the hub and housing an inner annular inertia weight 15 also rotatably mounted on the hub, a viscous fluid in the space between the weights and shear inducing means 18, 19 attached to the hub and positioned adjacent to the inner and outer weights. The weights are rotatably mounted on the hub by bearings 13, 14, 29, 30. The discs 18, 19 increase the area available for shear damping. Flanges 16, 17, 33, 34 on the bearings locate the weights with respect to the discs 18, 19. The viscous fluid may be a putty-like silicone of 20 million centi-stokes viscosity which tunes the inertia weights in addition to damping them. The outer weight could be enclosed in a housing connected to the hub. The housing could also contain viscous fluid for increased damping.
Patent GB-1280429-A (GB)
Title: Motor drive positioning apparatus
IPC: F16K31/04
Filed: 1970-12-22
Abstract: 1280429 Valves HELMUT BALZ GmbH 22 Dec 1970 [12 Sept 1970] 60843/70 Heading F2V [Also in Division H1] An overload torque sensing device for switching off an electric motor 26, Fig. 2, in a drive for opening and closing a fluid valve comprises a gear drive housing 31 resiliently located in position and rotatable on a shaft 28 carrying an arm 34 which actuates micro-switches 35, 36 when a predetermined torque is exceeded. In the example the housing is resiliently held against rotation by a leaf spring (38), Fig. 3 (not shown), in a fixed housing (8) and engageable with a flat face 37 on the rotatable housing 31. In the example the motor drives a screw 7 of a screw and nut gear, Fig. 1 (not shown), through gears 27, 29, 33, 30, 12 to operate a fluid valve (2), Fig. 1 (not shown), and is resiliently located by a U- shaped leaf spring 13 holding ball bearings 9, 10 axially in guideways 18, 19. Elastic rings 24 in conjunction with notched plates 22, engaging projections 19 operate to brake the torque applied to the screw 7 before the motor 24 has been stopped by operation of one or other of the micro-switches 35, 36.
Patent GB-667004-A (GB)
IPC: H01H33/70
Abstract: 667,004. Air-break switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Jan. 31, 1950. No. 2466/50. Class 38 (v). A compressed-air blast circuit-breaker comprises a movable pin contact 3 co-acting with a fixed sleeve contact 1 and an arcing contact 4, which is carried by a disc 5, urged downwards by a spring 9 and connected to contact 1 by flexible conductors 6. When contacts 1, 3 separate, an arc is struck until contacts 3, 4 separate subsequently, the arc 11 then being maintained central in the contact 1 by the air blast which also moves the contact 4 upwards.
Patent GB-677485-A (GB)
Abstract: 677,485. Gas turbine plant. SOC. RATEAU, and ANXIONNAZ, R. July 4, 1950 [Aug. 31, 1949], No. 16687/50. Class 110(iii) A power plant comprising a closed circuit gas turbine unit having a high-pressure compressor discharging into a high-pressure gas turbine i and an open circuit gas turbine unit having a low-pressure compressor a driven by a low-pressure gas turbine c wherein the discharge end of the low-pressure compressor is connected to a first point of the closed circuit upstream of the high-pressure compressor and the intake end of the low-pressure gas turbine is connected to a second point of the closed circuit downstream of the highpressure gas turbine is characterized in that an auxiliary compressor n is arranged in series with the high-pressure compressor and is driven by the low-pressure gas turbine. A useful power turbine l is arranged in series with the turbine i and the exhaust therefrom, after feeding a recuperator g, is divided into two flows. One flow is fed to the combustion chamber e of the turbine c and the other flow, after passing through a cooler m and mixing with the air supplied by the compressor a, is fed to the compressor n. The compressor and turbine units may comprise one or more stages in series or in parallel with intermediate cooling and heating respectively.