baber/WOPTO huggingface dataset:
Patent GB-476052-A (GB)
Title: Toy vehicles
IPC: A63H29/06
Filed: 1936-06-02
Abstract: 476,052. Toy vehicles. WOLVERINE SUPPLY & MANUFACTURING CO. June 2, 1936, No. 15462. Convention date, June 14, 1935. [Class 132 (iii)] A toy vehicle has bent leaf springs which drive the vehicle and which are tensioned by relative movement between the frame of the toy and a supplementary frame carried thereby. The driving wheels 20 are mounted on an axle 19 carrying a pinion 22 and journalled in the side beams 13 of the supplementary frame pivotally attached to the side walls of the vehicle body 10 by a cross-pin 16. The side beams 13 are connected by a cross-bar 14 and cross-beam 15 having mounted on them a housing 18 formed by bending a metal plate. A shaft 26 is mounted in the housing 18 and rotatably carries the hub 28 of a sector gear 27 meshing with the pinion 24 fixed with the gear 23 on the shaft 25 journalled in elongated bearings 29 in the housing 18 and having the shaft 26 as axis. A pair of bent leaf springs 31 are fixed at one end to the cross-beam 15, bear on projecting ends of the shaft 26 and are hooked at their other ends to the crosshead 30 mounted on the sector gear 27. On depressing the rear portion of the vehicle body 10 a cross-bar 35 mounted therein engages an arcuate recess 36 in the sector gear 27 which is thereby rotated counterclockwise to compress the springs 31 and move the shaft 25 to the right of the slots 29 to disengage the gear 23 from the pinion 22. When pressure on the vehicle body 10 is relaxed, the springs 31 expand to rotate the sector gear 27 clockwise and move the shaft 25 to the left of the slots 29 causing the gear 23 to engage with the pinion 22 which is thus rotated together with the driving wheels 20. The clockwise movement of the gear 27 is limited by the engagement of a finger 34 thereon with the wall 17 of the housing 18, but the clockwise movement of the pinion 22 assisted by gravity causes the shaft 25 to move to the right of the slots 29 with unmeshing of the gear 23 from the pinion 22 which thus continues to rotate. Counterclockwise movement of the sector gear 27 is limited by the cross-head 30 engaging in slots 33 in the housing 18.
Patent GB-876078-A (GB)
Title: Polymerization of ethylene with monovalent titanium halide
IPC: C08F10/00
Filed: 1960-05-03
Abstract: A polymerization process comprises polymerizing ethylene in the presence of a halogenated aromatic diluent and a catalyst consisting essentially of TiX,AlX3, where X is halogen, and prepared by reacting stoichiometric amounts of aluminium and titanium tetrahalide at 200 DEG -400 DEG C. in the absence of a diluent. Specified titanium tetrahalides are the tetrachloride and tetrabromide.  Specified diluents are monochlorobenzene, bromobenzene, dichlorobenzenes and dichlorotoluenes.  The products may be recovered and deashed by treating with isopropanol and acetylacetone.  The process of the invention is compared with processes using catalyst compositions corresponding to Ti 4/3 ,AlCl3; TiCl2,0,67AlCl3; TiCl3,O,33AlCl3; Ti,0,5AlCl3; Ti,AlCl3 and Ti2,AlCl3.ALSO:Compounds of formula TiX.AlX3 where X is halogen may be prepared by reacting stoichiometric amounts of aluminium with a titanium tetrahalide at 200 to 400 DEG C. in the absence of a diluent. The compounds, particularly the chlorides, are catalysts for the polymerisation of ethylene.  The preparations of compositions corresponding to Ti4/3.AlCl3; TiCl2.O,67AlCl3;
Patent GB-663963-A (GB)
Title: Improvements in liquid dispensing machines with variable stroke measuring units
IPC: G01F11/02
Filed: 1949-06-10
Abstract: 663,963. Reciprocating pumps. COZZOLI, F. J. June 10, 1949 [Nov. 26, 1948], No. 15537/49. Class 102 (i) (i) A machine for filling ampules comprises a variable stroke piston pump 24 which delivers liquid in measured quantities to a filling needle 45 and has valve means 26, controlling suction and delivery, which maintains the delivery passage open until after the suction stroke has commenced in order to prevent drip. The pump comprises a bucket 24a connected to a valve body 25 pivoted on a shaft 28, and a cylinder 24b slidable over the bucket and detachably connected to a yoke member 20 which is adjustably clamped to an arcuate actuating lever 19. The latter is secured to and oscillated by a rocking shaft 18 driven through a link 17, connecting rod 15 and crank member 14 by a variable-speed geared motor 13 having a graduated speed adjuster 13b. The pump stroke is varied by adjusting the position of the yoke 20 on the calibrated lever 19 which at its upper limit, corresponding to the end of delivery, is concentric with the pivotal axis on the bucket so that the  cylinder always reaches the same upper limit. A valve slide plate 27 is actuated through a link 32 and lever 51 by a roller 50 engaging an axial cam groove on the crank member. The needle is connected to the valve outlet nipple 41 by a flexible pipe 42. The valve and pump unit are readily dismantled from the machine for cleaning A shroud 24e prevents dirt entering the cylinder.
Patent GB-1155472-A (GB)
Title: Clip for Attachment to an Apertured Support for Securing an Article thereto
Inventor: FORD DAVID JULIAN
IPC: F16B5/06
Filed: 1967-04-05
Abstract: 1,155,472. Spring clips; stud and sockel fastenings. CARR FASTENER CO. Ltd. 30 Jan., 1968 [5 April, 1967], No. 15558/67. Heading E2B. A clip for detachable attachment to an apertured support for securing an article thereto comprises a base 1 having stud means 2 projecting from one face for insertion into the aperture in the support to detachably secure the clip thereto, a first resilient arm 5 extending integrally from one end of the base in spaced over lapping relation thereto and a second resilient arm 7 forming an integral extension of the free end of the first arm and disposed between and in spaced relation to the first arm and the adjacent surface of the base for resiliently holding the article 20 be secured when positioned on the base. In the construction shown the arm 7 has a concavely curved portion for engaging the article to be secured and the arm 5 is connected to the base by an arcuately shaped bight portion. The two arms are also connected together by an arcuately shaped bight portion 8. The clip is formed as a one piece moulding of synthetic plastics material.
Patent GB-1408496-A (GB)
Title: Pneumatic tyres
IPC: B60B21/12
Filed: 1973-03-30
Abstract: 1408496 Pneumatic tyres MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS MICHELIN) 30 March 1973 [31 March 1972] 15584/73 Heading B7C A protective flap 1 which in use is interposed between an inner tube and a wheel rim, has a rigid insert 12 defining a hole 10 for receiving the inner tube valve stem, and a strip of rubberized cloth reinforcement 13 provided on the radially inner surface 16 of the flap, the thickness of the flap being increased in the region of the insert and the radially outer end of the insert 12 being embedded in the flap. The flap may be produced by moulding an elastomer; the rubberized cloth reinforcement 13 may be adhered to the flap by glueing and by application of heat and pressure. The insert 12 may be formed of metal or plastics and as shown is generally tubular and has flanges 22 and 24. The flange 22 is separated from the radially external surface 14 of the flap by a layer 15. As shown part of the reinforcement 13 is gripped between the insert 12 and the flap.
Patent GB-574315-A (GB)
Title: Improvements in cable ways
IPC: B61B12/10
Filed: 1944-08-16
Abstract: 574,315. Rope railways. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 16, 1944, No. 15610. Convention date, Aug. 16, 1943. [Class 104 (ii)] A sectionalised travelling ropeway has a separate motor 4 for each section, each motor having a starter 5 with a hand switch 6 which is shunted by a filter or condenser 12 to allow the passage of signal or telephone currents along the starter circuit. The starting current is direct and the signal current is alternating, of an audible frequency. The sections may have local current sources and be coupled by relays similarly shunted.
Patent GB-1002814-A (GB)
Title: Improvements in and relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B21/08
Filed: 1962-04-24
Abstract: 1,002,814. Stud fasteners. F. T. PRODUCTS Ltd. April 22, 1963 [April 24, 1962], No. 15615/62. Heading E2B. A one-piece fastener is made of a resilient synthetic plastics material and comprises a head and an elongate hollow shank 12 depending from the undersurface of the head, the shank being open at the end remote from the head, increasing in diameter from its ends to a maximum at a position intermediate the ends and having a slot 17 extending longitudinally from the open end of the shank to a position short of the position of maximum diameter of the shank. In the construction shown the shank is convexly curved in the longitudinal direction throughout the major part of the length but in a modification the shank can have a shoulder at the position of maximum diameter; in another modification the portion adjacent the head is concavely curved. The head instead of being of the shape shown can be adapted to secure a member such as a cable or beading to a panel.
Patent GB-515219-A (GB)
Title: Improvements in or relating to bathing trunks, drawers or like garments for male wear
IPC: A41D7/00
Filed: 1938-05-25
Abstract: 515,219. Suspensory bandages. ELSTON, F. W. May 25, 1938, Nos. 15625 and 15626. [Class 81 (ii)] [Also in Group VII] . Bathing trunks and like articles of wear having a central front or fly opening 11 adapted to be closed by a fastener 12 are provided with a fabric panel 15, forming a body supporter or suspensory bandage, located at the front interior immediately behind the fly opening and extending downwards from a position adjacent to the waist line, whereat it is secured to the garment at each side of the fly opening as at 16-161, the upper part of the panel being capable of lateral extension. In a particular construction, a portion of the upper part of the supporter embodies a V-shaped elastic insert 18. The lower end of the supporter may be attached near the crutch 17, or may extend partly up the back and have straps attachable to the waist back, whereby the length of the supporter may be adjusted. The garment is suspended at the waist by suitable means. Thus -a band of elastic material 23 may extend round the back from hip to hip and be anchored at its ends, and elastic bands 26, 261 may extend forward from each hip being attached thereat to the former band and to the garment, means being provided for connecting their free ends together, for example a buckle 27. The garment may be provided with one or more pockets.
Patent GB-900366-A (GB)
Title: Improvements in or relating to electrical storage and gating arrangements
Inventor: BREWSTER ARTHUR EDWARD
IPC: H03K3/45
Filed: 1960-05-04
Abstract: 900,366. Semi-conductor gating circuits; pulse code modulation circuits. STANDARD TELEPHONES & CABLES Ltd. April 28, 1961 [May 4, 1960], No. 15660/60. Classes 40 (5) and 40 (6). A gating and storage circuit includes a gating pair of tunnel diodes 1, 2 and a storage pair of tunnel diodes 3, 4, the diodes of each pair being serially connected with like polarity to voltage sources B, C. The voltage sources are controlled so that an input signal applied to a common connection of the elements of the gating pair at predetermined instants will set the gating pairs into one of two stable states, which is then transferred to the storage pair, and so that except at these instants the gating pair present a low impedance shunt across the input signal. The input at A is derived from the coder of a pulse modulation system and may be either a positive (MARK) or negative (SPACE) pulse, Fig. 2 (a), and the voltage applied to B comprises positive-going sampling pulses, Fig. 2 (b), so that a MARK on A switches diode 2 to its high state, with a corresponding change in potential at X, Fig. 2 (c). The input at C, Fig. 2 (d), causes the data to be transferred to the storage pairs at the end of the sampling period, and removal of the sampling pulse from B allows the gating pair to put a low impedance shunt across input A to shunt spurious signals between the sampling periods. Read-out signals, Fig. 2 (e), are applied at D and the resulting output, Fig. 2 (9), has its positive-going part clipped by a diode (not shown). The two tunnel diodes of each pair may be different portions of a multiple junction semi-conductor device. In a pulse code modulation communication system, each element of the binary data corresponding to the amplitude of a signal at the sampling time is fed to a circuit of the type shown in Fig. 1, and the outputs of the circuits are connected together. The read-out pulses are applied to each circuit at appropriate times to produce a sequence output of pulses. Specification 847,334 is referred to.
Patent GB-1038375-A (GB)
Title: Improvements in means for controlling phase-controlled switch circuitry
Inventor: LEAVERLAND ANTHONY ROY
IPC: H02M1/08
Filed: 1963-04-20
Abstract: 1,038,375. Transistor pulse circuits. PARMEKO Ltd. April 20, 1964 [April 20, 1963], No. 15664/63. Heading H3T. [Also in Division H2] A circuit TRIG1 is used to trigger the gate of a first silicon controlled rectifier controlling the drive and acceleration of an electric motor, whereas circuit TRIG2 triggers a second rectifier controlling the braking of the motor, as described in Specification 1,038,374. Capacitor C1 is charged when transistor VT1 is rendered conductive so that circuit TRIG1 produces a pulse output to trigger the first silicon-controlled rectifier, the voltage across circuit TRIG2 being removed. Current is maintained through circuit TRIG1 by Zener diode D1 until termination of the relevant half-cycle of the voltage applied to rectifier MR1. When there is no input to the transistor VT1, capacitor Cl is charged through resistor R2 to a value insufficient to fire the circuit TRIG1. At the end of a cycle of the supply voltage, the base potential of circuit TRIG2 falls as the voltage across diode D1 reaches zero, the base potential of circuit TRIG1 being prevented from falling by diode D4. Accordingly circuit TRIG2 will fire at the end of the cycle.
Patent GB-1328599-A (GB)
Title: Protable power-driven harvesting implement
IPC: F02B1/04
Filed: 1972-04-05
Abstract: 1328599 Harvesting fruit WELLS MFG CORP 5 April 1972 [6 April 1971] 15707/72 Heading A1F [Also in Division F1] A hand carried tree shaker 10 comprises a plant engaging V-shaped clamp 13 which is reciprocated by a light weight internal combustion engine 11 via a centrifugal clutch 27, a spaced reduction spur gear train, a crankshaft, a connecting rod 15 and an elongated link 14. The hand grip 16 incorporates a trigger 18 to control the engine speed, and hence the frequency of reciprocation, via a throttle linkage 19 and a ventless fuel tank 34 Fig. 4 (not shown), made of collapsible material e.g. neoprene, is provided in the housing 12 so as to allow the shaker to be held at any angle without a spillage of petrol.
Patent GB-1508344-A (GB)
Title: Vehicle wheel
IPC: B60C17/08
Filed: 1975-04-16
Abstract: 1508344 Pneumatic tyres FIRESTONE TIRE & RUBBER CO 16 April 1975 [23 April 1974] 15747/75 Heading B7C A pneumatic tyre and wheel run assembly comprises a radial ply tyre having rubber inserts 22 between the carcass ply or plies and liner 23 and an outer lower sidewall contour such that, when distance AC is equal to 10% of the width of the tyre and BC is perpendicular to AC, the angle X is not greater than 40 degrees. The tread width is greater than the width of the tyre at the bead heels and the aspect ratio of the - tyre is not greater than 70%. Two or more breaker plies 21 have cords of steel, glass, nylon and/or rayon at 30 degrees to the midcircumferential plane. The Specification discloses a preferred rubber for the inserts and preferred carcass ply cord construction.
Patent GB-1040415-A (GB)
Title: Copolymerization process
IPC: C08F222/08
Filed: 1963-04-22
Abstract: Copolymers are produced by simultaneously bringing an olefinically unsaturated monomer, e.g. styrene, and maleic anhydride, which may be halogenated, in 1:2 to 2:1 molar proportions and a free-radical catalyst into contact with a solvent which has been preheated to the desired polymerization temperature and which is a solvent for both the monomers and the copolymer, the copolymer having a solution viscosity in 10% acetone solution of up to 7 centistokes.  The solvent may be methyl ethyl ketone optionally with cumene or acetone. The catalyst may be benzoyl peroxide, hydrogen peroxide or dicumyl peroxide together with an activator, e.g. N,N-dimethyl aniline. The solvent may be preheated to 150-250 DEG  C. and may contain less than 3% of unreacted monomers. The monomers and catalyst may be dissolved in a solvent to form a feed solution which is fed to the pre-heated solvent.
Patent GB-687367-A (GB)
Title: Improvements relating to electrical monorail installations
IPC: H02G5/04
Filed: 1950-06-23
Abstract: 687,367. Supplying current to moving conductors. TOURTELLIER, M. June 23, 1950, No. 15784/50. Class 38 (i). [Also in Groups XXX and XXXI] In an electric monorail installation in which the monorail 1 is of inverted U-shape with inwardly upturned arms forming a double track for supporting and guiding pairs of load-carrying wheels 5 the rail serves both as a support and a protective sheath for electric conductors 2 arranged therein and insulated therefrom. Contact with the conductors 2 may be by rollers, as shown, or brushes, Fig. 6 (not shown). The conductors 2 may be disposed in the horizontal plane, as shown, or in the vertical plane, Figs. 7 and 8 (not shown).
Patent GB-448299-A (GB)
Title: Process for preventing oxidation and other losses in coals and the like and more especially in bituminous coals
IPC: C10L9/10
Filed: 1935-05-31
Abstract: A semi-colloidal fuel is prepared by mixing coal &c. which has been finely ground in presence of a neutral gas, with an equal weight of a mixture of oil and tar acids or phenolic oils.
Patent GB-1423868-A (GB)
Title: Forming electrically-conductive solder-connections between  current-conductors on a substrate and conductor-tracks  of an insulating flexible foil
IPC: H05K1/14
Filed: 1973-04-03
Abstract: 1423868 Soldering PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 April 1973 [6 April 1972] 15905/73 Heading B3R [Also in Division H1] In joining conductor tracks 2 on one side of an insulating flexible foil 1, to which conductor tracks is connected an electrical element carried by the foil, to solder carrying current conductors 6 on a substrate 5, the side of the foil remote from the track 2 is placed on the substrate with the terminal portions of the tracks aligned with the conductors on the substrate, a heated element 7 is placed on the conductor 6 to melt the solder thereon, the end of the element 7 is raised above the level of the track 6 to cause the solder to wet the track and the element 7 is then raised further so that the molten solder is detached from the element to form a hill 8 of solder between the conductor and track the solder connections being made in this manner either separately or in a group. The foil 1 may be of polyimide and has a number of conductor tracks thereon which are gold plated and a semi-conductor integrated circuit 3 is soldered to the tracks. The substrate 5 is a printed circuit panel or ceramic plate having a number of conductors 6 carrying lead-tin solder. The foil 1 is placed on the substrate, overlying the ends of the conductors 6, with the tracks aligned with the conductors and the soldering of the tracks to the conductors is effected simultaneously or one by one. The heated element 7 is placed on the conductors 6 to melt the solder thereon and is moved to the position A, Fig. 3, carrying solder with it and is then moved up to the position B when the solder detaches from the element to form a hill 8, Fig. 2. A cooling member 10, Fig. 4, may be secured to the rear side of the semi-conductor element 3 with depression 11 in engagement with the foil.
Patent GB-677034-A (GB)
Title: Improvements in motor cycle and like vehicles
IPC: B62K15/00
Filed: 1950-06-26
Abstract: 677,034. Collapsable motor-cycles. INNOCENTI SOC. GENERALE PER L'INDUSTRIA METALLURGICA E MECCANICA. June 26, 1950 [Dec. 28, 1949], No. 15936/50. Class 136(iii) A foldable motor-cycle has a hinge joint 2 which comprises two U-shaped members 7, 9 secured respectively to the front part 1 and to the rear part 3 of the frame, the members 7, 9 being pivotally mounted on a hinge pin 8 and locked so that the parts 1, 3 are in alignment by pressure exerted by a roller 21 which is supported on a lever system pivoted at 16 to the member 7. To regulate the pressure of the roller 21 the length of the lever arm is variable by having a lever 18 adjustably screwed into a support 23 which is fulcrummed at 17 to a bracket 15 pivoted at 16 to the member 7. The roller has an elastic core 22. To ensure centering of the portions 1, 3 of the frame, they are provided respectively with parts 10, 11 of a spherical seat inside which are two rigid pieces 12, 13 adapted to slide axially and spaced apart by an elastic block 14. One half 6 of the handlebar is hinged at 24 for folding upon the other half. The handlebar halves are locked in operative position by a tooth 30 in the half 6 engaging a notch in a screw 29 on the other half. A cap 27 is urged by a spring 28 into the locking position. The footrest may be swung into a non-protruding position.
Patent GB-1215582-A (GB)
Title: Improvements in or relating to transistor amplifiers
Inventor: LIEPINS VALDIS
IPC: H03F3/21
Filed: 1967-04-07
Abstract: 1,215,582. Transistor class B amplifier. MARCONI CO. Ltd. 31 Jan., 1968 [7 April, 1967], No. 16007/67. Heading H3T. In a class B transistor amplifier having a class B amplifying transistor T1, a bias source 3 is connected to the base of a biasing transistor T2, the output from which is fed to the base of the amplifying transistor T1 through a current path of a further transistor T3 which is resistance shunted, the further transistor T3 having its saturation voltage below the cut off voltage of the class B transistor T1. The biasing voltage Vb is arranged to be substantially constant over a limited range (X, Fig. 3, not shown) of current I b , the current through the transistor T3 decreasing as the current I b  drawn by the class B amplifying transistor T1 increases. The voltage Vb is adjustable by resistor R5. When the current I b  increases so that the collector current of T3 is zero (at I 1 =I o ), on further increase of I b  the voltage Vb decreases on a sloping characteristic (Y) and when the transistor T2 saturates the voltage V b  is reduced further on a sloping characteristic (Z) which may be varied by adjusting the resistor R4. The biasing circuit stabilizes the voltage V b  against changes in output power and if the transistor T3 is subjected to the same temperature as the transistor T1 and has similar temperature characteristics to T1 the bias voltage is stabilized against temperature changes. A plurality of transistors T1 can be connected in parallel and supplied from a single biasing circuit T2, T3.
Patent GB-1431699-A (GB)
Title: Pressure fixable magnetic toners
IPC: G03G9/093
Filed: 1973-04-04
Abstract: 1431699 Electrostatic toner XEROX CORP 4 April 1973 [10 April 1972] 16092/73 Heading G2H An electrostatic toner which can be pressure fixed without heat, and magnetically applied without the use of carrier particles, is made up of particles each of which has a pressure-rupturable polymeric shell with an adhesive polymer and particles of a magnetically-attractable substance inside. In use, fixing may be by pressure alone, or by a combination of heat and pressure. Lists of polymeric materials which can be used and methods of preparation are given. The magnetically attractable particles may be metallic and contain Co, Fe, Ni, Al, Cu, Pb, Mg, Sn, Zn, Au, Ag, Sb, Be, Bi, Cd, Ca, Mn, Se, Ti, W, V or Z as elements or alloys, or may be of oxides of Al, Fe, Ni, Zn, Z, Ti or Mg, of nitrides of V or Cr, of carbides of W or Si or of ferromagnetic ferrites. A pigment, which may be carbon black, and/or a dye colourant, may also be present.