baber/WOPTO huggingface dataset:
Patent GB-958783-A (GB)
Title: Improved delay circuit
IPC: H03K3/284
Filed: 1960-09-13
Abstract: 958,783. Transistor pulse circuits. SPERRY RAND CORPORATION. Sept. 13, 1960 [Sept. 14, 1959], No. 31556/60. Heading H3T. A delayed pulse generator comprises a pair of transistors in cascade, with a feedback circuit comprising a diode and capacitor in series between output and input, the capacitor charging rapidly via the diode when an input signal is applied and discharging via a resistor. In Figs. 1, 2, the input signal V1, applied to terminal 13. renders transistors T1, T2 conductive, charging capacitor 10 rapidly via diode 39 and the base/emitter path of transistor T1 to provide the step 1. The charge is terminated when the capacitor 10 is approximately charged to + E3 when diode 39 is cut-off. Transistors T 1, T2 remain conductive for a short period due to charge storage, providing a pedestal 2. When the charge carriers are dissipated, transistors T1, T2 become non-conductive and capacitor 10 discharges via resistors R1, R2 which are connected to a high voltage source E4 to provide the linear discharge 4. Transistor T3 is rendered conductive when capacitor 10 is discharged to +E5, terminating the delay period. Transistor T4 is rendered non-conductive, cutting off T5, terminating the output pulse A at terminal 75. The fall of voltage at the collector of T4 is differentiated at 86 and provides an output pulse B at terminal 92 by rendering transistor T6 conductive for a short period. A negative output pulse C is similarly provided by cutting-off transistor T7 by the rise in collector voltage of transistor T4 at the beginning of the next delay period. The circuit shown may be reset during the delay period as shown in Fig. 2 and hence output C may be used to identify the first pulse of a train whilst output B occurs at a fixed interval after the last pulse. The period of the delay is adjustable by R2, coarse adjustment being provided by replacement of capacitor 10. Fig. 3 shows an alternative input circuit in which transistor T8 is normally conductive and transistor T9 normally non- conductive the states being reversed during the charge of capacitor 10 when a trigger pulse is applied to terminal 13. The transistors are protected against excessive voltages by diodes 122, 152.
Patent GB-1401792-A (GB)
Title: Process for electrolytically applying polymer coatings on  electroconductive articles
IPC: C09D5/44
Filed: 1972-07-06
Abstract: 1401792 Electro-coating with polysulphonium compounds DOW CHEMICAL CO 6 July 1972 31597/72 Heading C7B Electroconducting substrates are cathodically electro-coated using as electrolyte a solution containing a polysulphonium salt of the general formula [R 1 R 2 S<SP>#</SP>] n X.A<SP>n#</SP> wherein R 1  and R 2  are hydrocarbon or hydroxy-substituted hydrocarbon groups; X is a hydrocarbon radical or a radical of sulphur, nitrogen, keto, ester or amide linkages and A is a compatible anion; whereby a resinous coating insoluble in the solvent of the electrolyte is deposited on the substrate. The solvents which may be used include water, dimethylformamide, acetonitrile, dimethyl sulphoxide, hexamethylphosphoramide, tetrahydrofuran, lower alkanols, and mixtures of the above organic substances with water. Substrates to be coated may be Fe, Al, Mg, Zn, Pb, Cu, Pt, Cr, Ag, Sn or alloy thereof; carbon or graphite; germanium or gallium; conductive plastics material; plastics material coated with aluminium; or Cr- or Ni-plated Fe or Fe alloys.
Patent GB-340659-A (GB)
Title: Improvements in or relating to continuously acting absorption machines for producing cold or heat
IPC: F25B15/10
Filed: 1929-10-17
Abstract: 340,659. Refrigerating. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin- Oct. 17, 1929, No. 31610. Convention date, Oct. 26, 1928. [Class 29.] Absorption systems. -In a continuouscycle inert gas system, the circulation of gaseous mixture between the evaporator 9 and absorber 7 may be modified as desired by feeding more or less solution into the absorber from a reservoir 11 under the action of heat applied to the reservoir. In the arrangement shown the vessel 11 is connected by a branch pipe 15 to the conduit 14 conveying strong liquor to the generator 1. Normally gas and liquid rise from the generator to a separator vessel 4 whence liquid flows by a pipe 6 to the absorber and gas to the condenser 5. An electric or other heater 13 is provided in the reservoir 11 and when this is in action the pressure developed forces the liquor back into the absorber, where it throttles the pipe 8 conveying gaseous mixture from the evaporator. The reservoir 11 may be located in the conduit between the separator and the absorber, and gas developed from the liquid may be led back to the separator or to a nozzle in the gas expulsion pipe or in the inert gas pipe. In this arrangement the concentration of the solution in the generator is modified by the additional heating. Specification 279,898, [Class 29, Cooling &c.], is referred to.
Patent GB-1500959-A (GB)
Title: Photographic exposure device
IPC: G03F7/20
Filed: 1975-07-29
Abstract: 1500959 Exposing light-sensitive layers through fine masks INTERNATIONAL BUSINESS MACHINES CORP 29 July 1975 [16 Aug 1974] 31636/75 Heading G2A In an arrangement for exposing a light-sensitive layer through a mask having a finely structured pattern, the light source is annular in shape, and disposed in the focal plane of an optical system. The arrangement is similar to that disclosed in Specification 1362139 for the manufacture of integrated circuits. In order to provide sufficient energy to expose the photo-resist layer an extended light source is used such as the annular lamp 1, which may be a flash lamp or a continuously emitting thin filament lamp. Alternatively it may comprise a plurality of individual light sources arranged in a circle. Such an arrangement will provide satisfactory imaging of a pattern of slit openings 8a, 8b, 8c, 8d in the mask 5 which slits may be disposed in different directions as shown. The mask 5 is spaced about 20 Ám from a semiconductor wafer 6 covered with the photo-resist 7, and arranged in an adjustable vacuum holder 9. The lamp is disposed in the focal plane of a lens 3.
Patent GB-751210-A (GB)
Title: Improvements in and relating to ball and socket joints
IPC: F16C11/06
Filed: 1954-11-02
Abstract: 751,210. Ball-and-socket joints. THOMPSON PRODUCTS, Inc. Nov. 2,1954 [May 25, 1954], No. 31690/54. Class 65 (2). In a ball-and-socket joint a stud is provided with bearing means tiltable on a bearing wall, and has a rounded head which engages and distorts a member of elastomeric material, whereby the bearing means and wall are urged into en. gagement with each other to compensate for wear in the joint. A stud 30 passes rotatably through a ball member 25 seated on a hardened insert 18 fixed in a housing 10, a row of ball bearings B being interposed between the ball member and a rounded head 31 provided on the stud, and said head seats on and compresses a rubber-like disc 40 carried in a dished closure plate 36 for the housing. Lubricating channels 28 are formed in the outer surface of the ball member. The ball bearings may be omitted. The closure plate may be secured to the insert to form a replaceable unit. The hardness of the elastomeric member can be varied to vary the " stiffness " of the joint. The Specification gives examples of elastomeric materials suitable for use in the joint.
Patent GB-874309-A (GB)
Title: Improvements in or relating to electronic speed controls
Inventor: WARD RICHARD
IPC: H02P7/26
Filed: 1958-10-06
Abstract: 874,309. Control of motors. LINOTYPE & MACHINERY Ltd. Oct. 6, 1959 [Oct. 6, 1958], No. 31775/58. Class 38 (3). Remote control of the speed of a printing press is effected from either of two stations each of which comprises a potentiometer P1S or P1D switched into circuit selectively, sudden changes in speed being prevented when one control station supersedes the other. While the potentiometer P1S is being adjusted in either direction, a friction-operated microswitch MS is closed, a relay RC being energized, provided that relay RE is energized to close contacts RE2. Relay RC then switches potentiometer P1S into the machine control circuit, energizes warning lamp LS, and closes holding contacts RC3. Adjustment of potentiometer P1D opens contacts MD, the relay RC being de-energized, provided that relay RE is energized to open contacts RE1. Relay RC, when de-energized, switches potentiometer P1D into the machine control circuit and energizes warning lamp LD. The relay RE is in the anode circuit of valve V1 which passes current only when the potentiometers P2S, P2D are adjusted to corresponding positions, these potentiometers being mechanically coupled to each of the speed control potentiometers P1S, P1D respectively.
Patent GB-948593-A (GB)
Title: Hydrostatic transmission for conversion of a reciprocating movement into rotary movement
IPC: F01B11/08
Filed: 1962-08-20
Abstract: 948,593. Liquid piston I.C. engines; hydraulic apparatus. BETEILIGUNGS-PATENTVER WALTUNGSGESELLSCHAFT. Aug. 20,1962 [Aug. 23, 1961], No. 31929/62. Headings FIB and F1P. A liquid drive between the engine pistons 7, 8, and the output shaft 18a comprises an eccentric 18 surrounded by a ring 19 having sealing faces 23, 24 engaging corresponding sealing faces on slide members 25, 26, which slide in the engine housing 17 and form two sealed pressure spaces 34, 35 on opposite sides of the ring 19. The engine pistons 7, 8, are directly connected to hydraulic pistons 11, 12, which transmit pressure through the liquidfilled chambers 34, 35, alternately to opposite sides of the ring 19 and thereby rotate the eccentric 18 and shaft 18a. Sealing strips 38 ... 41 may be provided on the ring 19 and slides 25, 26, the projecting stems 27, 28, of which are also sealed by rings 31, 31a. The spaces behind the stems 27, 28, are interconnected by a pipe 29a and filled with liquid. In a modification, Fig. 2, the ring 47 has projections 51, 52, sealingly engaging slides 53, 54.
Patent GB-1127282-A (GB)
Title: Polymer-containing adhesives
IPC: C09J109/00
Filed: 1966-07-15
Abstract: 1,127,282. Laminates. POLYMER CORP. Ltd. 15 July, 1966 [23 Aug., 1965], No. 31952/66. Heading B5N. [Also in Division C3] Surfaces are bonded together by interposing between them an anhydrous adhesive composition comprising a mixture of a polar copolymer of 51 to 80 mole per cent of isoprene and 49 to 20 mole per cent of acrylonitrile, the copolymer having a Mooney viscosity (ML-4 at 100‹ C.) of from 1 to 100, and a compatible resin, the resin having a softening point between 50‹ and 160‹ C. The composition may be suitable as a hotmelt adhesive composition. In the examples, the following surfaces were bonded: cotton duck strips, cotton duck to fabric backed PVC sheet, fir plywood strips, aluminium plates, cotton duck to polished steel, polyurethane foam to wood and kraft paper to aluminium foil.
Patent GB-631959-A (GB)
Title: Improvements relating to cloches
IPC: A01G13/04
Filed: 1946-10-28
Abstract: 631,959. Cloches. JONES, P. Oct. 28, 1946, No. 31958. [Class 20(i)] A cloche clip comprises a spring loop 1 having crossed limbs 2 provided with gripping means 5, 6, 7 to hold sheets o f glass, and  means 8 adapted to hold the limbs 2 in a position permitting assembly of the cloche and subsequently to release them to assume, or to lock them into, the position in which the assembly is firmly retained. In a flat roofed type of cloche shown in Fig. 3, sheet metal members 5, 6, having grooves to receive the adjacent edges of the sheets, are threaded on to the limbs 2 which terminate in gripping portions 7 to engage the lower edges of the bottom sheets. A slidable member 8 consisting of a piece of wire with an eye surrounding each limb 2 closes the assembly as it is slid away from the crossing point 3 and opens it when slid towards the crossing point. The member 8 may be slid up into the position where it is under compression, thus more positively locking the assembly. Specification 596,805 is referred to.
Patent GB-1491189-A (GB)
Title: Connection of filamentary electrical conductors
IPC: H01R4/10
Filed: 1976-08-02
Abstract: 1491189 Sleeve connectors NITRO NOBEL AB 2 Aug 1976 [2 Sept 1975] 32058/76 Heading H2E The end of the bared end of a wire 4 is clamped between two cylindrical members 1, 2, a second wire 7 inserted with its bared end 8 adjacent that of the first wire, and connection made between the wires by holding the wires and rotating the members 1, 2 with respect to them, thereby twisting the bared ends 5, 8 together, no relative rotation occurring between 1 and 2. The ends of both wires may be clamped (Fig. 3, not shown). The cylindrical members may be of plastics, cardboard, wood, or insulated metal and may be constructed as one item, being separated before use, and may have anti-rotation means on at least part of the mating surfaces such as a non-circular, e.g. hexagonal cross-section, or a groove and protrusion, and means to limit their relative axial movement, e.g. internal or external barriers or tapered surfaces.
Patent GB-715005-A (GB)
Title: Improvements in or relating to ingot moulds and the process of casting of metal ingots therein
IPC: B22D7/10
Filed: 1952-12-18
Abstract: An alloy comprises 22 cobalt, 18 chromium, 42 nickel, 0.7 manganese, 0.7 silicon, 2.1 titanium, 0.3 aluminium, (all as percentages), and the remainder essentially iron.  Specification 686,766 is referred to.
Patent GB-175715-A (GB)
Title: Improvements in and relating to control devices for motor vehicles
IPC: B60T13/36
Filed: 1920-11-13
Abstract: 175,715. Green, H. Nov. 13, 1920. Pneumatic transmission; controlling different functions with the same handle or lever. - The clutch and brakes are operated pneumatically, the depression of a lever being arranged to throw out the clutch and operate the foot brake, a further movement operating the emergency brake. The clutch pedal 13 is connected to a piston 18 working in a cylinder 17, the foot brake and emergency brake being similarly connected to pistons in cylinders 20, 40. The cylinders are connected to a compressed-air chamber 16 through a valve - controlled by a hand-lever and comprising a spring plunger 46 having ports 47, 48, 49 of diminishing size. The. ports in their normal position are open to exhaust. The chamber 16 may be fitted with a nipple for connecting a flexible pipe thereto for inflating the tyres. The chamber is charged by a pump 23 driven from the fan shaft 11 or other engine part, a clutch operated by a piston 31 in cylinder 30 being provided to disconnect the pump when a predetermined pressure is reached. A starting-device 28 is provided and is ccntrolled bv a valve 38 on the dash-board or steering-handle.
Patent GB-400783-A (GB)
Title: Improvements in and relating to electric drives for oscillating systems such as pendulums
IPC: G04C3/02
Filed: 1932-11-14
Abstract: 400,783. Metronomes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Allgemeine Elektricitats-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Nov. 14, 1932, No. 32190. [Class 88 (ii).] In electric driving means for oscillating systems wherein one part of a resijient member is attached to the system and another part actuates switching means in the circuit of an electromagnetic operating device and is moved by the operating device to maintain the oscillation, this other part is brought to rest by the operating device before each switching operation and remains inoperative until motion is transmitted to it by the continued motion of the oscillatory system. In the form shown in Fig. I the pendulum supporting springs (not shown) are carried by the horizontal knife-edge supported extension c of the actuating lever f which is oscillated by the attraction of armatures o, p by electromagnets q, r which are energized alternately by the engagement of roller g on the lever f with contact plates i or h. When armature o is attracted, the roller g is pressed to the right, the springs are slightly bent and the pendulum is urged to the right, but as the springs straighten before it reaches the extreme position, the rocker c rocks slightly in the same direction and the disengagement of members g, i ensues permitting the armature carrying lever k to be returned to the middle position by spring n. As the roller g is still in its righthand position, it is then engaged by the contact h. The contacts are so shaped that no further acceleration of the lever f takes place during the final movement of the lever k into its end position. When used as a metronome, the upper part of the pendulum may be lengthened and the drive arranged to produce an acoustic signal on movement of the armature and may be adapted to give a further signal on the completion of a predetermined number of oscillations. Alternatively lamps may be used as signals. In the form shown in 'Fig. 3, the lever f is pivoted between rigid stops t, u attached to the rocker c and is deflected by segmental weights g, h. Just before the pendulum reaches its extreme left position, the supporting springs are stretched and the rocker c is moved to the left further from the position shown whereby the contacts carried by lever f break with that on stop t and engage the one on stop u to cause weight h to be raised and enable roller o to be pressed to the right by segment g and again cause the springs to be strained. As an alternative, the rocker c and lever f may be rigidly connected, the roller o serving as one contact and segments g, h the counter contacts. The release of the elements may be determined by impulses controlled by the pendulum other than those caused by making and breaking contact, e.g. photoelectric cells may be used, and cranks may replace the cam action of the falling weights. In both forms, there may be only one actuating impulse per complete oscillation.
Patent GB-174783-A (GB)
Title: Sprocket drums and films for motion picture projecting machines
IPC: G03D15/00
Filed: 1920-11-15
Abstract: 174,783. Darby, J., and Flindell, E. F. Nov. 15, 1920. Kinematograph picture films are formed with oppositely-inclined perforations for engagement by correspondingly inclined teeth 303, 304 on the driving sprocket 300 in order to avoid lateral displacement of the film in the gate and to flatten the film by a lateral stretching at the gate.
Patent GB-410475-A (GB)
Title: Improved means for use in destroying weeds, melting ice, heating asphalt in position or otherwise heating the ground
IPC: A01M15/00
Filed: 1932-11-15
Abstract: 410,475. Treating land, roads, &c. with flame and heat. STEELWAY, Ltd., and GOODYEAR, C. W., Queensgate Works, Monmore Green, Wolverhampton. Nov. 15, 1932, No. 32262. [Class 6 (i).] Apparatus for destroying weeds on roads, yards, &c., for heating old asphalt, and for drying or for melting ice round manhole covers and tramway points &c., comprises a fuel burner and a fuel reservoir mounted on a twowheeled truck provided with a rigid handle, the arrangement being such that the burner is relatively near the ground and by manipulation of the handle may be directed to cause the flame to impinge on the ground from any desired direction and at any angle, within limits, to the plane of the ground. The frame A of the truck comprises a longitudinal strip a and a cross strip a<1> forming an axle for two wheels B. It is provided with a supporting foot M. The handle C is pivoted at b and secured by a clamping screw b2. The reservoir E is secured by bolts D and provided with an air pump H, filler cap J, and shut-off cock K. The fuel pipe G leading from the reservoir to the burner F may be flexible to allow of adjustment of the burner about a clamping screw c<1>. The burner F comprises a heating tube f, a jet nozzle g, and a shield h formed as a spreader to produce a fan-shaped flame. There may be two or more burners of blow-lamp type. According to the Provisional Specification the reservoir, or a pump therefor, may be mounted on the handle shaft, and the burners are adjustably mounted on an adjustable cross-bar on a pillar extending upwards from the centre of the axle. Reference has been directed by the Comptroller to Specifications 27220/96, [Class 6], and 1704/12, [Class 107].
Patent GB-486084-A (GB)
Title: Improvements in aerials for aircraft radio compasses
IPC: H01Q1/28
Filed: 1936-11-25
Abstract: 486,084. Wireless signalling. BASHENOFF, V. I. Nov. 25, 1936, No. 32315. [Class 40 (v)] A loop aerial for an all-metal aeroplane is mounted inside the cabin which has glass or celluloid windows. It is mounted so as not to obscure the view through the windows, the vertical limbs being spaced away from the walls, whilst the horizontal limbs may be placed close to the metal framework. It may follow the contour of the dielectric as shown at A in Fig. 1 where the nose of the cabin is fitted with a window, and at A in Fig. 2 where it is fitted around the transparent windscreen. The aerial may also be located outside the machine in a position where it closely follows the contours of a dielectric surface. The arrangement prevents frictional drag, reduces ice-formation, and minimizes the effect of rain-static. The aerial may be adjusted relatively to the plane of symmetry of the craft to compensate for wind " drift," or one end of the coil windings may be loaded relatively to the other end for the same purpose. Specification 473,866 is referred to.
Patent GB-1508886-A (GB)
Title: Manufacture of water-insoluble and only slightly water-swellable polymers of n-vinyl lactams of adsorptivity
IPC: A23L2/80
Filed: 1975-08-04
Abstract: 1508886 Clarifying beverages BASF AG 4 Aug 1975 [5 Aug 1974] 32428/75 Heading C6E [Also in Division C3] A method of clarifying a beverage such as beer, wine or fruit juice, comprises adding thereto an insoluble, slightly swellable polymer of an N-vinyl lactam prepared by polymerizing the vinyl lactam or mixture of vinyl lactams with a cyclic acid amide under alkaline conditions using an α- or #-ketocarboxylic acid or its methyl or ethyl ester as catalyst. The cyclic acid amide contains at least two ethylenically unsaturated groups of which at least one is attached to an amide nitrogen atom and polymerization occurs only via the vinyl and ethylenically unsaturated groups present [see Division C3].
Patent GB-1048162-A (GB)
Title: Electrical signal responsive apparatus for use with industrial process instrumentation systems
IPC: G05B11/26
Filed: 1964-01-29
Abstract: 1,048,162. Semi-conductor rectifier circuits. FOXBORO CO. Jan. 29, 1964 [Feb. 1, 1963], No. 32452/65. Divided out of 1,048,161. Heading H3T. The subject matter is identical with that in the parent Specification but the claims relate to the use of a semi-conductor device in the input circuit of a semi-conductor controlled rectifier to compensate for changes with temperature of the gate firing voltage.
Patent GB-1448202-A (GB)
Title: Flue outlets
IPC: F23L17/02
Filed: 1972-07-12
Abstract: 1448202 Making flue outlets ENVIROMARK Ltd 12 Oct 1973 [12 July 1972] 32501/72 Heading B3A [Also in Division F4] A method of making a flue outlet, which includes a body having at one end an elongated rectangular opening 10 bounded by a flange 11 and at its other end a circular collar, tube or sleeve adapted to engage with the upper part of a flue, comprises forming the body in two similar halves and securing the halves together, the dividing plane of the halves passing through the longer centre line of the elongated rectangular opening and the centre of the circular collar tube or sleeve. The opening 10 is shaped to match a rectangular opening in the upper end of a flue outlet from, e.g. a gas operated furnace or boiler. The body halves are made by high pressure die casting a light alloy such as aluminium alloy and they are secured together by riveting, screwing, welding or brazing or by means of an adhesive. The halves are handed and formed with inter-engaging ribs 18.