baber/WOPTO huggingface dataset:
Patent GB-1066960-A (GB)
Title: Breakage indicating device for wire stranding machines
Inventor: KUNZE HUBERTUS
IPC: D07B7/08
Filed: 1964-08-20
Abstract: A breakage indicating device for stranding machines of the rotatable cage type comprises a plurality of spokes rotating with the cage, but positioned between the cage and the stranding point, there being a sliding member at the outer end of each stroke, there sliding members tending to move outwardly under centrifugal force but being prevented from doing so by the stranding material passing through the sliding members.  Should a stranding material break its associated sliding member moves radially outwards to close an electrical circuit whereby some indication of the breakage is signalled and/or the machine is stopped.  Each sliding member may be provided with a ceramic nipple through which the stranding material is threaded.
Patent GB-1415445-A (GB)
Title: Method of measuring strain and a high sensitivity semiconductor strain transducer assembly
IPC: G01L1/22
Filed: 1973-07-18
Abstract: 1415445 Semi-conductor strain transducers BELL & HOWELL CO 18 July 1973 [28 July 1972] 34193/73 Heading H1K A semi-conductor strain gauge transducer comprises a piezo resistive semi-conductor layer of one conductivity type having a hexagonal wurzite crystal structure with C axis strain sensitive resistivity and contacts defining a current path parallel to the axis, and voltage applied across the contacts, whereby the resistance therebetween is measured, and means securing the layer to a member the strain in which is to be determined. A substrate 12 (Fig. 1) of, e.g. glass, molybdenum, silicon supports electrodes 14, 16 with terminal wires between which piezo resistive layer 22 is sandwiched; having strain sensitive resistance in a predetermined direction to which the current path is parallel; the inter-electrode resistance being measured in series with a voltage by an ohm meter. Layer 22 may be of hexagonal wurzite structure, e.g. cadmium sulphide without diode characteristics. The transducer assembly may be deposited directly on a member to be investigated. The layer 22 of cadmium sulphide may be deposited (Fig. 2) over electrode 14 with electronically active components diffused through surface 26 to increase sensitivity, while the opposed electrode 16 is directly applied or may include a metal contact layer 10 of aluminium, chromium, titanium, gallium, indium, tin, alloy of tin, and gold or chromium or alloy of aluminium and titanium. Terminal layer 32 may be of gold, silver or other conductor, whole wires 18, 20 may be connected directly to the metal terminal layers. The in-diffused substances may be copper, silver, gold as acceptors and chlorine, bromine, iodine, indium, gallium, aluminium as donors applied by sonic bombardment or thermal in-diffusion from solution. Compound in diffusion of halogenides of copper, silver, gold, indium, gallium, aluminium may be employed. The basic cadmium sulphide may be deposited with the vertical C-axis orientation by vacuum deposition or liquid or chemical vapour deposition. Strain resistance characteristics are given (Fig. 3, not shown). The device may be A.C. energized, and connected in a bridge circuit. In manufacture, plurality assemblies may be produced simultaneously by depositing gold on an extended substrate and masking for vacuum deposition of circles of cadmium sulphide. Cupric chloride to be in-diffused, the ohmic contact layer, and a gold layer thereon are deposited using further masking technique and the assemblies are separated by dicing.
Patent GB-640195-A (GB)
Title: Improvements in or relating to melting, re-melting and recovering of aluminium and its alloys
IPC: C22B21/06
Filed: 1947-12-24
Abstract: A method of melting aluminium and aluminium alloys in a rotary furnace under a salt bath comprises the steps of introducing into the furnace a batch of salt having a melting point equal to or nearly equal to that of the charge to be melted, heating the salt to its melting temperature as the furnace is rotated at a speed intermediate between its minimum rotational speed and the highest rotational speed at which no centrifuging takes place, heating the melted salt to a temperature higher than its melting point while rotating at the said highest rotational speed, cutting off heating while maintaining high rotational speed and charging the metal to be melted until the salt cools and solidifies forming a conglomerate with the metal to be melted, heating the conglomerate while rotating the furnace at its minimum rotational speed till liquefaction commences, rotating the furnace at the said intermediate speed between the start and end of liquefaction and then at the said highest speed until the casting temperature of the metal is attained.  As a modification of the method, during the stage of charging the metal, the furnace may be alternatively rotated at a low speed through a small angle and held stationary. The treatment of aluminium-copper alloys is referred to.
Patent GB-1437537-A (GB)
Title: Vehicle cab
IPC: B60R21/11
Filed: 1973-07-18
Abstract: 1437537 Tractor cabs; cab mountings INTERNATIONAL HARVESTER CO OF GREAT BRITAIN Ltd 18 July 1973 34231/73 Headings B7B and B7D A vehicle cab, particularly for a tractor, includes a frame 2 comprising front and rear pairs of uprights 4, 6 interconnected at their lower ends by longitudinals 8, rearwardly extending longitudinals 10 connected to the upper ends of the rear uprights and cross members 14, 12 respectively. interconnecting the upper ends of the front uprights and the longitudinals 10, each cross member being provided with pairs of resilient mountings 18, 20 adapted for mounting the frame on the vehicle. The front cross member 14 carries upstanding U-brackets 16 on which each mounting 18 is supported. The frame may be provided with a detachable superstructure comprising a roof and side walls and with doors having separately mounted upper and lower parts. The cab's floor is formed of a plastics material moulded in one piece which may be integral with a driver's seat. The vehicle may have a roll-over protective structure comprising four uprights interconnected at the top by a rectangular frame. No rigid connection between the roll-over structure and cab frame or superstructure exists.
Patent GB-898646-A (GB)
Title: Improvements relating to shoe-drum brakes for vehicles
Inventor: WALKER STANLEY
IPC: F16D65/09
Filed: 1957-11-02
Abstract: 898,646. Internal shoe-drum brakes. GIRLING Ltd. Nov. 3, 1958 [Nov. 2, 1957], No. 34274/57. Class 103 (1). In-an internal shoe-drum brake, the shoes 10, 11 are pivoted at their ends remote from the actuating means 12 on pins 14, 15 which are held rigidly in a fitting 16 welded to the inner face of the back plate 13 of the brake and the pins are retained in the fitting by means of a locking plate 19 which is secured by a bolt 20 passing through the back plate into a tapped hole in the fitting 16; the locking plate 19 being so shaped as to engage in annular grooves 18 in the pins 14, 15 such that when the locking plate 19 and the pins 14, 15 are removed, the shoes can be withdrawn in directions substantially parallel to the back plate.
Patent GB-1435834-A (GB)
Title: Condenser discharge stud-welding tool
IPC: B23K11/26
Filed: 1973-07-18
Abstract: 1435834 Stud welding apparatus HILTI AG 18 July 1973 [4 Aug 1972] 34286/73 Heading H2H A condenser discharge stud welding tool comprises a condenser battery 1, a welding current switch 3, a trip circuit including a relay A for simultaneously disconnecting a supply source from the condenser battery and for closing the welding current switch, and a safety circuit including a relay C responsive to a voltage greater than a predetermined level existing between the welding electrodes when the switch 3 has not been closed by the trip circuit to discharge the condenser battery and disconnect it from the supply source. Initially the relays A, C and a further relay B are de-energized, as shown, the condenser battery 1 being charged by the output of a bridge rectifier 14 via closed contacts a 1 -a 2  and c 3 -c 4 . When the gun 6 is placed on a workpiece 7 and a switch 24 closed, the relays A, B are energized thereby changing over their contacts so that the thyristor switch 3 is triggered via the closed contacts a 3 -a 4  and the condenser battery 1 is discharged to weld a stud 8 to the workpiece. On removing the gun from the workpiece and opening the switch 24, the relay B is de-energized, a self-holding circuit maintains the relay A energized and the relay C is energized. The contacts of the relay C change over the discharge the condenser battery via a resistor 28 and short circuit the holding circuit of the relay A. The relay A is therefore deenergized and the opening of contacts a 3 -a 4  deenergizes the relay C so that all the relays are now in their initial state. If the safety relay C does not operate, the holding circuit of the relay A is not short circuited via the contacts c 1 -c 2  so that the relay A remains energized and prevents further charging of the condenser battery. Also, if the thyristor 3 is defective and remains conductive after a welding operation, a potential exists on lead 4, which potential energizes the relay C via contacts b 5 -b 6  to discharge the condenser battery. In the event of the disconnection of the mains supply to a transformer 12, the de-energized relay A allows a welding tool with a defective thyristor 3 to be operated on reconnection of the mains supply for an initial welding operation but further operation is prevented due to the energization of the relay A. In a modification, a defective welding tool is prevented from operating even if the mains supply is disconnected and then re-connected. The relays may be replaced by transistors or thyristors.
Patent GB-814215-A (GB)
Title: Improvements in or relating to jacks for supporting caravans and like vehicles
IPC: B60S9/06
Filed: 1956-11-09
Abstract: 814,215. Jacks. BOWLEY, G. Nov. 4, 1957 [Nov. 9, 1956], No. 34321/56. Class 78 (3). The screw and nut mechanism which actuates the ground-engaging lever 8 of a trailer jack is housed within a pair of telescopic tubes 10, 13 which contain lubricant. The nut (not shown) is secured in tube 13 which carries a guide roller 16 and is slidable within tube 10 which is secured to the trailer by means of a frame 1. The lever 8 is pivoted on the frame 1 about an axis 8b and is connected with roller 16 by an actuating link 17. A pair of struts 23 extend in a V from the lower end of the lever to laterally spaced pivots on the axis 8b. A plate 22 supports roller 16 when the leg is retracted. The ground-engaging foot comprises a piece of tube 9 welded to the leg.
Patent GB-894952-A (GB)
Title: Improvements in means for damping tuned radio-frequency circuits in am/fm receivers
IPC: H04B1/26
Filed: 1960-10-07
Abstract: 894,952. Radio receiving circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 7, 1960 [Oct. 10, 1959], No. 34461/60. Class 40(5). In a radio receiver which can be switched to work on a broadcast (A.M.) waveband or on a high frequency (F.M.) waveband, in which each 1.F. circuit comprises a highintermediate-frequency transformer 21 connected in series with a low-intermediatefrequency transformer 22, the transformer 21 is short-circuited by means of a diode 20 in series with a D.C. blocking condenser 19 when working on the broadcast waveband. The arrangement prevents breakthrough of harmonics of the local oscillator. Switch 30 is so arranged that when on contact 32 it energizes the local oscillator for the broadcast band and the cathode of the diode being earthed over resistors 16, 17 and its anode connected to the anode of valve 9, it is conductive to short-circuit the primary of the high-intermediate-frequency transformer 21. When switch 30 is on contact 31 it energizes the local oscillator for the high frequency waveband and at the same time applies a positive bias to the cathode of the diode via resistor 17 which is greater than that applied to the anode, so rendering the diode non- conductive.
Patent GB-1483846-A (GB)
Title: Eccentric rotary plug valve
IPC: F16K3/22
Filed: 1975-08-20
Abstract: 1483846 Valves H D BAUMANN 20 Aug 1975 [26 Aug 1974] 34581/75 Heading F2V A rotary valve plug 6 having a frustospherical head 21 is eccentrically mounted, on a shaft 7, with respect to an adjustable seat ring 5. The shaft 7 is mounted in a yoke 4 comprising end rings 17 and connecting ribs 20. The mounting permits small axial movement along the shaft. The centre line A of the bore 35 in the seat ring is slightly off-set from the valve centre line B so that the seat may be adjusted for close mating with the head 21 of the valve plug by rotating the seat ring with respect to the yoke 4 in which it is mounted, the axial movement of the valve plug also assisting. The valve is operated by an actuator 31 through a stem 26 which engages in a pin 8 carried by two ribs 24 attached to the pivoting limb 22 of the valve plug. The stem flexes in operation to allow for the change in effective length of the ribs 24 as the valve is operated. A screw 40 provides an adjustable stop path valve plug.
Patent GB-925127-A (GB)
Title: Three-phase load interrupter
IPC: H01H33/12
Filed: 1961-09-27
Abstract: 925,127. Arc-rupturing in switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 27, 1961 [Sept. 28, 1960]. No. 34603/61. Class 38 (5). A three - phase loadbreak switch for a system having an insulated neutral, is provided with arcrupturing means in two phases only, these two phases being opened before the remaining phase. Fig. 1 shows a contact-blade 1 for each of the two phases, connected to an operating shaft 3 by a link 4 and lever 2. Fig. 2 shows the contact-blade 5, for the remaining phase, connected to the shaft 3 by a link 7 and a lever 6 which is secured to the shaft at an angle of approximately 90 degrees to the lever 2. Thus when the shaft 3 is turned through an angle α, each blade 1 separates from its co-operating fixed contact before the blade 5 does so.
Patent GB-936026-A (GB)
Title: Improvements in or relating to the dispensing of liquids containing dissolved gas under pressure
Inventor: LORD GEORGE MONTAGU ROCHFORT
IPC: B67D1/12
Filed: 1959-10-13
Abstract: 936,026. Dispensing liquids by gaseous pressure. AMF Ltd. Oct. 27, 1960 [Oct. 13, 1959], No. 34623/59. Addition to 868,674. Drawings to Specification. Class 102(2). In the apparatus for dispensing liquid in which gas is dissolved, according to the parent Specification, the mechanical means for disengaging gas from solution is replaced by means for locally heating or electrolysing the liquid.
Patent GB-600442-A (GB)
Title: Projection lamps
IPC: F21V7/16
Filed: 1945-12-21
Abstract: 600,442. Projection lamps. HEWITT, N. E. Dec. 21, 1945, No. 34685. [Classes 75(ii) and 75(iv)] A projection lamp comprises a light source and a plurality of reflectors which are pivoted in a supporting frame and may be adjusted to vary the light beam by levers carrying tappets engaging an axially movable cone. In Fig. 1, a number of reflectors 14 pivoted at their inner or outer ends in the lamp casing 12 are adjustable simultaneously by levers 16 carrying tappets 18 engaging a cone 19 threaded on a rotatable screw 20. In Fig. 9, overlapping reflecting plates 24 surrounding a fixed parabolic reflector 31 and pivoted at 25 to the casing are adjustable by levers 26 carrying tappets 27 engaging an axially movable cone 28. In Fig. 12 annular reflectors 23 pivoted at 38 are adjustable by rods 39 pivoted to levers 40 having tappets 41 engaging a movable cone 42. In another construction a number of reflectors pivoted to a cylindrical casing and reflecting light back towards a fixed main reflector are similarly adjustable. The wall and reflectors may be formed with vacuum chambers. Specification 400,680 is referred to.
Patent GB-944629-A (GB)
Title: Improvements in or relating to unsaturated polyesters
IPC: C08F2/02
Filed: 1961-09-27
Abstract: In a process for the preparation of copolymers by copolymerizing an ethylenically unsaturated monomer with an unsaturated polyester, the latter is obtained by condensing a tri- or higher polyhydric alcohol with an aldehyde in the presence of an a ,b -ethylenically unsaturated dicarboxylic acid or an anhydride thereof to form an acetal containing two or more hydroxyl groups per molecule and esterifying this acetal with the unsaturated dicarboxylic acid or anhydride.  The condensation reaction may take place prior to or simultaneously with the esterification. Small amounts of monohydric acetate may be present in the mixture undergoing esterification. Specified polyester components are:-acids-maleic, fumaric, itaconic, citraconic or mesaconic acids, possibly in admixture with succinic, adipic, azelaic, sebacic and the phthalic acids; alcohols-glycerol, trimethylol ethane, trimethylol propane and pentaerythritol; aldehydes-form-, acet-, butyr-, croton-, furfur-, cinnam-, benz- or tolyl-aldehyde or ethyl hexanol. Specified monomers are styrene, vinyl toluene, acrylonitrile, ester of acrylic or methacrylic acid, allyl acrylate or methacrylate, and diallyl maleate, sebacate, azelate or phthalate. In examples, unsaturated polyesters derived from (a) maleic anhydride (b) phthalic anhydride (c) trimethylol propane and pentaerythritol and (d) formaldehyde, benzaldehyde or butyraldehyde are copolymerized with styrene to provide coatings free from surface tackiness.
Patent GB-503111-A (GB)
Title: Improvements in or relating to toy motor-cycles
IPC: A63H29/04
Filed: 1937-12-15
Abstract: 503,111. Mechanical toys. KELLERMANN, W. Dec. 15, 1937, No. 34761. [Class 132 (iii)] A toy motor-cycle carries in addition to the rider, the figure of a pillion rider h which swings in the same direction as the motor cycle when it describes a turn in its path. A cam i on the spindle of the driving motor oscillates a lever d about a pivot c, a projection o on the lever d engaging an aperture n in an extension of the front forks of the machine to swing the front wheel from side to side, while an aperture in the rearward extension g of the lever d, engages a pin u secured to the figure h to turn it about a pivot in the same direction as the front wheel. A lever q hinged at q<1> to the lever arm e, carries a lateral oxtension s which is pressed against the casing by a spring p and a rotating finger r engages the extension s repeatedly so producing a noise simulating that of an exhaust.
Patent GB-357419-A (GB)
Title: Rubber vehicle tyre with tread of different heights and resiliencies
IPC: B60C11/18
Filed: 1930-11-20
Abstract: 357,419. Tyres. COLEMAN, E. W., Lawn View, Edwards Avenue, Northolt Junction, Middlesex. Nov. 20, 1930, No. 34911. [Class 144 (ii).] A tyre tread comprises soft rubber ribs D<1>, D2, D3 projecting outwardly beyond relatively hard rubber ribs E<2> .. E<5> with a soft rubber cushion layer D extending across the tyre between the tread and the casing. As shown, the tread ribs are spaced by V-section grooves.
Patent GB-639254-A (GB)
Title: Methods of and means for producing time-modulated pulses
IPC: H03K7/08
Filed: 1946-11-25
Abstract: 639,254. Pulse modutation; phase modulation. PATELHOLD PATENTVERWERTUNGS- & ELECTROHOLDING AKT.-GES. Nov. 25, 1946, No. 34946. Convention date, Dec. 18, 1945. [Class 40 (v)] Duration modulated pulses are produced by mixing two phase modulated sets of oscillations and'subsequent shaping. The oscillations may be sinusoidal, rectangular, or trapezoidal in waveform. The output of a constant frequency oscillator G is divided between phase modulators P1, P2, a network K in the lead to modulator P1 effecting a fixed phase-shift of 90 degrees. Signals applied to an amplifier V phase modulate the oscillation by means of current variable iron-cored anode reactances which are connected so that the phase-shift in P1 is in opposition to that in P2. Harmonics arising from the modulation are suppressed by filters. Amplitude limiters B1, B2 are used to produce approximately rectangular pulses which are then multiplied together by a mixer M. The resultant duration modulated pulses are used to key an H.F. oscillator (not shown). In a modification, Fig. 11 (not shown), the outputs of the two modulator valves are multiplied together by a balanced ring type rectifier modulator before passing to a pentode limiter and two diode limiters. The Specification as open to inspection under Sect. 91 also disclosed that two phase-modulated pulses may be added together instead of being multiplied. This subject - matter does not appear in the Specification as accepted.
Patent GB-1535497-A (GB)
Title: Recovery of rubber from a latex effluent
IPC: C08C1/14
Filed: 1977-10-07
Abstract: 1535497 Flocculating latex effluent SOCFIN CO BERHAD 7 Oct 1977 34952/77 Headings C3E and C3L Rubber is recovered from a latex effluent from a latex concentration plant by adding to the latex effluent a flocculating agent comprising a cationic polymeric compound containing one or more polyoxyethylene groups in a liquid medium to effect flocculation of the latex and separating flocculated rubber from the liquid phase. Specified cationic polymers are poly - [oxyethylene - (dimethylimino)ethylene- (dimethylimino)ethylene dichloride], poly- [hydroxyethyl - (dimethyliminio)ethylene- (dimethyliminio)methylene dichloride] and a copolymer of epichlorohydrin and a diamine.
Patent GB-343156-A (GB)
IPC: B23K35/00
Filed: 1929-11-15
Abstract: Aluminium alloys for use in welding consist of (1) 80 parts of aluminium, 1 part of bismuth, 2 parts of tin, 12 parts of zinc, and 5 parts of cadmium; or (2) 90 parts of aluminium, 2,5 parts of bismuth, 2,5 parts of tin, and 5 parts of cadmium.
Patent GB-487781-A (GB)
Title: Improvements in centrifugally controlled electric switches
IPC: H01H35/10
Filed: 1936-12-21
Abstract: 487,781. Centrifugal switches; control of D.C. motors. RANSOMES, SIMS, & JEFFERIES, Ltd., and ROGERS, B. S. Dec. 21, 1936, No. 35059. [Classes 38 (iii) and 38 (v)] An electric switch comprises a series of individually movable electric contacts which are operable to make or break contact with complementary fixed contacts, in a predetermined order, by, and in accordance with, the extent of travel of a common travelling element to which travelling movement is imparted by a centrifugal device. The shaft 3 driven by a motor &c., the speed of which is to be controlled has weighted arms 6 pivotally mounted on a disc 4 secured thereon and arranged to move a sliding sleeve 7 against a spring 13 as the speed of shaft 3 and the centrifugal force on weights 6 increase. A frame 11 is pivoted to the casing at its lower end 12 and is arranged to be moved about the pivot 12 by movement of the sleeve 7. It is provided at its upper end with a long insulated roller or a roller of insulating material 15 which is adapted to contact successively with cam members 26 attached to switch fingers 16 so that as the speed rises and falls, pairs of contacts 19, 20 are opened and closed in a predetermined sequence. In another arrangement, Fig. 4, weighted arms 6 are rotated with the shaft 3 and move outwards under the influence of centrifugal force to move a flanged sleeve 33, carrying an insulating disc 32, along the shaft 3 against a spring 13. The disc 32 then contacts in succession the rear ends of a number of spring-pressed contact-carrying pins 30 of different lengths arranged on an insulating disc 29. The contact members 19 carried on the pins 30 normally connect pairs of contacts secured to the disc 29, movement of the pins 30 by the disc 32 as the speed of shaft 3 increases causing the members 19 to be moved sequentially to break the connection between these pairs of contacts. The switch contacts may be connected in circuit with contactors for controlling rheostatic braking of an electric motor-driven vehicle or may control the shunt field circuits for regenerative braking or the contactors controlling the starting resistance. Further, the switch may be used to effect a change-over from regenerative to rheostatic braking.