baber/WOPTO huggingface dataset:
Patent GB-282968-A (GB)
Title: Improvements relating to casement windows
IPC: E05D3/06
Filed: 1926-12-08
Abstract: 282,968. Tucker, R. A. Dec. 8, 1926. Stays.-A casement window of the kind having doublejointed hinges permitting an opening at the hinged edge has a spring-extended, telescopic stay 6, 6a which tends to open the sash when released. The sash is retained in any position by a serrated plate 4 on the sill and a plate 8 on the sash adapted to engage same or by a recessed plate on the sill and a pivoted hand-operated catch on the sash.
Patent GB-1527799-A (GB)
Title: Tanks
IPC: B60P3/24
Filed: 1977-05-10
Abstract: 1527799 Tank vehicles CLARKE CHAPMAN Ltd 10 May 1977 [27 July 1976] 31161/76 Heading B7B A tank, which is light but provides mountings for running gear, landing legs and other fittings, comprises an aluminium, magnesium or aluminium or magnesium alloy barrel formed of a base plate 26 connected to side plates 18, 20 through connection pieces 34, 36 and the base plate includes downwardly extending flanges 30, 32 secured by fastening members to one or more steel mountings, e.g. 60, 62, 64.
Patent GB-857775-A (GB)
Title: Improvements in or relating to transistor oscillator circuits
Inventor: DAVIES IAN FREDERICK
IPC: H02M7/5383
Filed: 1958-09-30
Abstract: 857,775. Transistor oscillator circuits. GENERAL ELECTRIC CO. Ltd. Sept. 2, 1959 [Sept. 30, 1958], No. 31189/58. Class 40(6). [Also in Group XXXV] A transistor oscillator comprises two transistors 1, 2 having their emitter collector paths connected in series in the same sense between the terminals of a supply source 3 and an output transformer which also provides a regenerative feedback voltage such that the two transistors conduct alternately in the saturated condition, the transformer primary winding 10 being connected between the junction point of the two transistors and the junction of two equal capacitors 5, 7 connected across the supply source and of such magnitude that the voltage at their junction remains constant during the oscillation cycle. In the circuit shown the output transformer feeds a discharge tube 12 supplying the discharge current through a capacitor 14 and the heater current through windings 15, and 16. Feedback is provided through windings 19 and 20 and resistors 21 and 22 which limit the collector current when the transformer saturates and as the conductive condition of the transistor reverses. These windings could alternatively be connected to a further transformer connected in series with the main secondary winding of the output transformer. Resistors 6 and 8 assist in equalizing the voltage across capacitors 5 and 7, resistor 9 provides a load when the discharge tube is removed and resistor 23 assists the starting of oscillation.
Patent GB-1503089-A (GB)
Title: Retractable headlight assembly for motor vehicles
IPC: B60Q1/05
Filed: 1976-07-27
Abstract: 1503089 Retractable headlamps DR ING hcf PORSCHE AG 27 July 1976 [9 Aug 1975] 31280/76 Heading F4R Mechanism for moving a headlamp between a retracted position A and an operative position B and for locking the lamp in the operative position comprises an electric motor 18 driving a crank 20 fixed on the motor drive shaft, a pair of pivoted links 21, 22 connecting the crank to the shaft 3 on which the headlamp is secured, and a lever 9 freely rotatable on the shaft 3 and adapted to abut a pin 23 on the crank. When the motor is energized to rotate the crank in a clockwise direction the first part of the rotation, between the lines E and F, produces no rotation of the shaft 3 but turns the lever 9 in a counterclockwise direction causing a simultaneous rotation of a locking lever 10 which is connected to the lever 9 by a link 11. A lug 14 on the lever 10 is thereby disengaged from a recess 15 in a locking member 16 secured to the headlamp. Further rotation of the crank 20 through 180 degrees brings the headlamp from its operative position B to its retracted position A. When it is desired to return the headlamp to its operative position the motor is again energized and the clockwise rotation of the crank is continued through a further 180 degrees so that the crank resumes its original position, the shaft 3 being rotated in the reverse direction by the links 21, 22. The lug 14 abuts a cam surface 26 on the locking member 16 as the headlamp approaches its operative position and snaps into the recess 15.
Patent GB-902705-A (GB)
Title: High temperature siloxane composition
IPC: C08K3/22
Filed: 1960-09-12
Abstract: A siloxane moulding or coating composition consists essentially of from 5 to 30% (by wt.) of an alkylphenylsiloxane resin having an average of from 0,9 to 1,5 total phenyl and lower alkyl radicals per Si atom and from 70 to 95% of a volatile-free filler selected from magnesium silicate, lithium aluminium silicate, aluminium silicate, magnesium oxide, silica, alumina and zinc oxide.  The fillers are freed of volatiles, such as adsorbed or combined water, carbonates and organic matter, by calcining at temperatures above 500 DEG C. The compositions may also contain curing catalysts, e.g. lead stearate or 2-ethylhexoate, dibutyl tin diacetate or zinc octoate, mould release agents and pigments, e.g. Fe2O3.  Examples are given. Uses: As conventional or ceramic moulding compositions for making electrical insulators and connector bases; for coating articles. Specification 822,859 is referred to.
Patent GB-1248996-A (GB)
Title: Apparatus for controlling electric circuits
IPC: H01H43/24
Filed: 1969-06-20
Abstract: 1,248,996. Magnetic switches. LA TELEMECANIQUE ELECTRIQUE. 20 June, 1969 [20 June, 1968], No. 31390/69. Heading H1N. [Also in Division G3] Magnetic control apparatus comprises a fixed non-magnetic plate 9 of castellated cross-section with magnetic flux producing or diverting devices 14 adjustably mounted in grooves 10 of the plate 9 to co-operate with magnetic contact units 20 or other magnetically sensitive circuit control devices mounted in a movable carrier 15 with flux guides 25, 26 which extend into gaps in respective magnetizable gutters 16 which co-operate with the plate 9. The gaps in adjacent gutters 16 are offset in the direction of movement of the carrier 15 to prevent magnetic interference. The carrier 15 is mounted on a continuous belt 6 which may move in response to movement in a machine tool or milling machine part and the belt may engage in rebates 7a and 5a to provide a dust-proof chamber for the contact unit assembly. As shown, the flux producing devices each include a permanent magnet 35 and have a clamping screw 30 which forces side plates 33 against the sides of the respective groove 10. The magnet 35 is mounted in a pivoted body 36, spring- biased against a screw 34 permitting fine adjustment of the magnet position. The contact units 20 may be replaced by inductances which are influenced by magnetic masses on the devices 14 or alternatively permanent magnets may act on magnetically responsive semi-conductors.
Patent GB-955879-A (GB)
Title: Improvements in apparatus for clearing silt and mud
Inventor: HOLLYOAK WILLIAM HENRY
IPC: E02F3/76
Filed: 1961-09-01
Abstract: 955,879. Jetting apparatus. PROPRIETORS OF HAY'S WHARF Ltd. Aug. 2, 1962 [Sept. 1, 1961], No. 31534/61. Heading E1F. A jetting head 2 is secured to the lower end of a rigid vertical tubular member 3 so supported on a vehicle, such as the hull of a ship, that the member may be both rotated about and moved along the vertical axis by winch-controlled cable and pulley systems. A mixture of air and water under pressure emerges as a jet from the or each jetting nozzle of the head, which can be adjusted relative to the member about an axis at right angles to the longitudinal axis of the member.
Patent GB-1180683-A (GB)
Title: A Proximity Detector
IPC: G06K7/02
Filed: 1968-07-02
Abstract: 1,180,683. Sensing records. TATEISI ELECTRONICS CO. 2 July, 1968 [11 July, 1967], No. 31578/68. Heading G4M. [Also in Division G3] A fluidic device for sensing an object is characterized in that blockage of an aperture 17 of a fluidic oscillator 1 allows oscillation and removal of the blockage allows fluid to escape via the aperture so that there is no feedback along the channel 16 and consequently there is no oscillation. An application to the sensing of perforations in a card (Fig. 4, not shown) is described whereby a reading station consists of a plurality of such fluid devices arranged with their apertures 17 all facing the card. As the card moves upwards, columns of perforations (27) are sensed, producing corresponding changes in outputs (S1), (S2), (S3) while the blank portion of the card ensures that an oscillatory output (S4) is unchanged until the card has passed completely through the reading station.
Patent GB-163380-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B63/00
Filed: 1919-12-17
Abstract: 163,380. Carson, L., and Douthart, W. Dec. 17, 1919. Drawings to Specification. Sewing-machines; lock-stitching by shuttles.- A thread guiding and tensioning device is substituted for the usual spool and spool case and a thread is led from an external supply to the thread-guiding device in the shuttle.
Patent GB-681275-A (GB)
Title: Improvements in or relating to coil holders
IPC: B65H49/28
Filed: 1949-12-09
Abstract: 681,275. Feeding webs. CLARK & SONS (TOOLMAKERS), Ltd., G. F., CLARK, G. F., CLARK, J. G., and CLARK, R. W. June 16, 1950 [Dec. 9, 1949], No. 31671/49. Class 100 (i). [Also in Group XXII] A coil 9 of strip metal for feeding to a pressing machine (not shown) is supported on a horizontal disc 6 having a well 7 formed by a flange 8, such that the metal is unwound from the inside of the coil. The disc 6 is freely mounted by antifriction bearings on a post 2 fitted to a base 1. The post 2 carries a slidably adjustable boss 10 carrying arms 13, 14 and 15 adapted to be positioned slightly above the coil 9. The arm 13 forms a guiding loop 16 through which strip metal passes first to a U-shaped loop 18 formed on the end of a detachable resilient member 17 and then to the feeding mechanism of the pressing machine. The disc 6 may be assisted in its rotation induced by the unwinding of the strip metal, owing to its natural resilience, by an air jet 28.
Patent GB-677851-A (GB)
Title: Improvements relating to electronic repeater systems
IPC: G01R17/08
Filed: 1949-12-09
Abstract: 677,851. Electric indicating systems. EVERSHED & VIGNOLES, Ltd., and BOUNDY, J. R. Nov. 29, 1950. [Dec. 9, 1949] No. 31715/49. Class 40 (i). Apparatus for indicating at a distance a movement produced by a torque or a force as in Specification 589,423 is characterised by two transmitters operating in parallel to give signal currents of different frequencies which are separated at the receiver. As shown, one transmitter DT has a valve DV with a moving coil 8 in its anode circuit, fixed to a movable contact 6 assembled between two fixed contacts 2, 3 respectively connected to a negative and positive potential source, so that movement of a shaft 1 geared to the moving coil 8 causes change in the grid potential of the valve DV, modifying the D.C. anode current passing through coil 8 until the moving contact 6 is again floating between contacts 2, 3, the magnitude of the D.C. anode current, which is a measure of the movement of the shaft 1, being sent through transmission lines 11, 12. A second transmitter AT operates in a similar manner but with unsmoothed rectified A.C. on the anode of its valve AV, the unidirectional anode current, having a frequency of twice the supply frequency, being sent through the transmission lines 11, 12, a choke 13 being inserted in the lines to prevent the A.C. flowing in the D.C. circuit. At the receiver the lines 11, 12 are branched to operate an indicator DR by the D.C. signal through a series choke 48, and an indicator AR by the AC signal through a series condenser 49.
Patent GB-1452261-A (GB)
Title: Display models
IPC: G09B25/04
Filed: 1972-07-06
Abstract: 1452261 Models B DIMITRIOU 8 Oct 1973 [6 July 1972] 31781/72 Heading G5G A model layout of an architectural scheme such as a housing estate comprises a base sheet, e.g. of glass or flexible vinyl, and a plurality of threedimensional models of houses or other buildings each having at least one surface which is removably adherent to the base sheet. Each model is of expanded polystyrene and the adherent surface may be constituted by an attached piece of vinyl sheet. In use, the models when pressed firmly against the base sheet adhere thereto even when the sheet is vertical. The base may be modelled to simulate land contours, being terraced to provide a series of surfaces to which model buildings can be applied.
Patent GB-465527-A (GB)
Title: Improvements in electric motor control systems
IPC: B65H23/198
Filed: 1935-11-16
Abstract: 465,527. Control of two D.C. motors. ENGLISH ELECTRIC CO., Ltd., CARNEGIE, H. S., and ROGERS, A. E. Nov. 16, 1935, No. 31788. [Class 38 (iii)] Varying E.M.F.-A motor driving a reel on which stripe material is coiled on itself, and operating normally as a purely series-wound motor, is supplied from a source including one or more generators so excited in accordance with load that the voltage applied'to the motor decreases in proportion to any increase in the load current taken thereby, and the strip tension remains constant. A rolling mill drives a generator 1, Fig. 1, having a separately excited field 2 opposed by a series field 3, the generator supplying the series-wound reel motor 4 on which the roller material is wound. The generator field 2 is controlled by resistances 8, 9, whereby the tension maintained in the rolled material may be adjusted, and inching of the motor 4 effected. The torque of the motor 4 may be maintained at standstill by a generator 11 connected in series or in parallel with the generator. The motor 4 may be provided with a field winding 12 whereby electric braking may be effected when the generator field 2 is deenergized, and this field 12 may be used at starting. In a modification, the generator 1 has a single field supplied from an exciter on which the fields 2 and 3 are provided. In a further modification, the generator 1 is driven not by the mill but by independent means, and the exciter provided with the field windings 2, 3 is driven by the mill. In this further modification, the motor torque at standstill is obtained by providing the generator 1 with a field winding additional to that supplied from the exciter. The generator may also have a series " suicide " winding. Where the mill driving motor and the reel motor 4 are supplied from a Ward-Leonard generator 26, Fig. 4, the generator 1, excited in the same manner as in the system shown in Fig. 1, or from an exciter, coupled to the mill, is connected in series with the motor 4. The generator fields 2, 3 in this arrangement may assist or oppose but the field 3 produces a voltage in the generator 1 opposing the voltage of the generator 26. A similar arrangement may be used when the motor 4 is supplied from a constant voltage source, suitable starting means being provided for the motor. When the generator 1 is provided with an additional field winding to obtain a torque from the motor 4 at standstill, this field winding may be excited to an extent weakened by resistance during normal running, and may be employed for inching.
Patent GB-499489-A (GB)
Title: Thread-controlling mechanisms for sewing machines
IPC: D05B3/14
Filed: 1938-11-03
Abstract: 499,489. Sewing - machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.) Nov. 3, 1938, No. 31842. [Class 112] In a sewing-machine, particularly for attaching flat buttons, in which the needle and work have relative lateral movement during part of the sewing operation and no relative movement during the final part of the operation, a member is operated during the latter part to produce a bight in the needle thread above the work. The invention is described as applied to a button-sewing machine having a rotary looper and eyed needle 5 forming a single-thread chain-stitch, the needle descending through the same hole several times at the end of the attaching operation to produce knotted stitches. Before the second descent of the needle through the same hole, a finger 31 is moved across the needle path so that a bight of thread is formed about it when the needle descends, thus ensuring that the bight will not be pulled right through the work by the needle ; the bight slips off the finger 31 as it continues its motion. The finger 31 is operated by a projection 42 on the needle-vibrating cam 22 engaging a member 38 carried on the bent end of a rock-shaft 32, which is provided with a return spring 40.
Patent GB-144569-A (GB)
Title: Improvements in apparatus for heating water and other liquids
IPC: F24H1/10
Filed: 1919-12-19
Abstract: 144,569. Brewtnall, A. W. Dec. 19, 1919. Instantaneous water-heaters.-An instantaneous heaber for water or other liquids comprises upper and lower corrugated plates d, b having flat borders a, the corrugations of the two plates running in different directions, and the plates being clamped at their edges between two rings f, g connected by screws j. The liquid flows through the space between the two plates, where it is heated by means of a gas burner, electric heater, or the like, the space having an inlet connexion i for connexion to a supply source and an outlet connexion m. The plates and clamping-rings may be circular, square, or polygonal, and the upper clamping-ring f may be provided with lugs k having screw-threaded holes for attaching the heater to a support.
Patent GB-800130-A (GB)
Title: Ripper tooth structure
IPC: E02F9/28
Filed: 1956-10-19
Abstract: 800,130. Ripper teeth CATERPILLAR TRACTOR CO. Oct. 19. 1956 [July 25, 1956], No. 31855/56. Class 107 A replaceable tip 12 for a ripper tooth structure is provided with a socket loosely fitting on the boot 11 and retained in position thereon by a retaining pin 19 passing through aligned bores in the tip and boot. Projecting members 18 on the boot receive the thrust of the tip. The retaining pin 19 is secured in position by a spring 21 engaging a central annular groove 20 formed in the pin.
Patent GB-783188-A (GB)
Title: Valve
IPC: F16K3/24
Filed: 1954-11-04
Abstract: 783,188. Valves. RAY GLASS, Ltd. Nov. 4, 1954 [Aug. 2, 1954], No. 31869/54. Class 135. A valve device comprises a body 1 having a bore 2 with a coaxial fluid inlet 12 and an outlet 3, a plunger precisely dimensioned to fit the bore and adjustable to seal the outlet, the overlapping between the plunger and bore being at least twice the diameter of the bore. The cap 7 for the manual screw 9 may screw into an intermediate joint which may contain a graphite, lead or asbestos gasket or a chemical to absorb or render harmless any gas or liquid which may leak between the plunger and bore.
Patent GB-173937-A (GB)
Title: Improvements in or relating to perambulators and the like
IPC: B62B9/18
Filed: 1920-11-12
Abstract: 173,937. Sillers, H. Nov. 12, 1920. Frame construction; springs, arrangement of and mounting bodies and undercarriages on.-The central portion of each suspension spring of a perambulator or the like is turned on edge or twisted at right-angles to its extremities so that the wheels may be brought nearer to the body of the vehicle. The springs A' are turned on edge throughout the central portion A<2> which lies below the axles G and is suspended therefrom by laminar springs E or brackets.
Patent GB-750450-A (GB)
Title: Manufacture of a beaded shoe welt
IPC: A43B15/00
Filed: 1953-11-18
Abstract: 750,450. Shoe welts. ARNOLD, J. C. (Barbour Welting Co.). Nov. 18, 1953, No. 32015/53. Class 17 (2). A welt having upper and lower welt extension-forming sections 32, 34, an inseam flange 36, and a bead 50 is cut from a leather fillet 10. A vertical cut 22 is made in the lower flesh side and is extended horizontally and then downwardly to a point 30 towards the edge 18 from which a thin strip 20 has been removed. The fillet is then folded as shown in Fig. 3, and the ports are stuck together. To prevent the bending of the welt at the shoe toe displacing the sections 32, 34, the upper section 32 may be slashed on its lower flesh side.
Patent GB-499062-A (GB)
Title: Improvements in and relating to automatic windshield cleaners
IPC: B60S1/04
Filed: 1937-11-23
Abstract: 499,062. Windscreen-cleaners. TRICO PRODUCTS CORPORATION. Nov. 23, 1937, No. 32198. Convention date, Dec. 9, 1936. [Class 138 (i)] A windscreen-wiper unit comprises a wiper support which is movable bodily from a position in which it is clear of the windscreen to operative position in front of the windscreen, and vice versa, such movements being effected automatically by means of the wiper-actuating mechanism. Each wiper arm 135 is carried by a tubular support 116 which is slidable in a boss 118 in the engine cowling 12 and is provided with a rack 145 meshing with a pinion 146, rotation of which is effective to slide the support to and from the operative position shown in dotted lines. In the full-line position of the support, the windscreen 140 is free to open about a hinge at its upper edge. The wiper arm 135 is oscillated by gearing 130, 136 driven by a flexible shaft 115. The pinion 146 is driven by a flexible shaft 147. The shafts 115, 147 are driven by gear-wheels 108, 150, Fig. 5, which are mounted freely on the shafts in a casing 90 and are themselves driven by racks 105, 106 on a slide bar 100. The latter is reciprocated by a cam 95 on a flexible shaft 33 adapted to be driven by a worm wheel 17 and a worm 16 driven by a rotating part of the engine. The wheel 17 is adapted to be clutched to the shaft 33 by a clutch member 28, Fig. 1, actuated by a push-and-pull rod 46 which lies within, and is keyed to, the shaft 33 and is connected, through springs, to a manual control knob on the dash. The gear-wheels 108, 150 are adapted to be clutched to the shafts 115, 147 by clutch members 157, 177 respectively, these members being actuated by a slide 170 provided with cams 196, 197 for co-operation with fingers 200, 200a on the rod 46. The clutching arrangements are such that actuation of the rod 46 to start the wipers first clutches the wheel 17 to the shaft 33 and the wheel 150 to the shaft 147. The first halfrevolution of the wheel 17 is thus effective to move the supports 116 to operative position. The fingers then move the slide 170 to unclutch the wheel 150 and to clutch the wheel 108 to the shaft 115, so that the wipers are oscillated. When the rod 46 is actuated to stop the wipers, the wheel 108 is unclutched and stoppage of the wiper arms in a predetermined, parked position is obtained. The wheel 150 is then clutched to the shaft 147 so that the supports 116 are withdrawn, unclutching of the wheel 17 being prevented, until this has been effected, by a plate 56. In a modification, the supports are withdrawn wholly below the cowling through apertures provided with spring covers.