baber/WOPTO huggingface dataset:
Patent GB-198107-A (GB)
Title: Improvements in sliding bolt latch and lock fastenings for use upon attache and other cases
IPC: E05B65/50
Filed: 1922-03-09
Abstract: 198,107. Hill, W. J. March 9, 1922. Hasp locks; locking sliding latches; hasp fastenings.-In a hasp fastening for use on attachÚ &c. cases in which the sliding latch 5 and keyoperated sliding locking catch 8 are arranged in a single plane and in superficial contact with the casing 1 and back-plate 6, the latch 5 has a part 4 provided with a handle 14 projecting through a slot in the rear wall of the casing.
Patent GB-1524766-A (GB)
Title: Zoom lens camera equipped with flash unit
IPC: G03B7/16
Filed: 1977-02-18
Abstract: 1524766 Zoom lens cameras with flash WEST ELECTRIC CO Ltd 18 Feb 1977 [19 Feb 1976]  06989/77 Heading G2A A camera having a zoom lens with means for adjusting the magnification has a flash source with means for adjusting the illuminating angle of the source, the two adjusting means being linked so as to act in conjunction. Since the angle of view changes when the magnification changes, if the illuminating angle of the flash has been set for a particular focal distance, it will not be used to its maximum efficiency for a different focal distance. The purpose of the invention is to adjust the illuminating angle automatically as the focal . distance alters. Fig. 2 shows a zoom lens 6, and a flash source 4 having a reflector 2 for producing a specific illuminating angle, in front of which is a lens 5. Zoom lens 6 has a pin 8 which engages in an inclined slot 10 in a sliding member 9, and lens 5 has a pin 11 which engages in an inclined slot 17 in the slider. Slots 10 and 17 are inclined in different directions, so that as the slider moves in the direction of arrow 16, lens 6 and lens 5 move in opposite directions, indicated respectively by arrows 11' and 13. Thus the illuminating angle becomes smaller as the zoom magnification becomes greater. In the modification of Fig. 4 (not shown), in which is provided a light sensor (18) for sensing the quantity of light reflected from the object through a lens (19) and so controlling the amount of flash-light, the lens is again movable by a similar pin and slot arrangement. In the further modification of Fig. 6, a limiting bar 24, co-acting with a pin 29 on the focusing ring 23 of the zoom lens, sets a limit on the movement of the ring. The position of the bar is set, via a gear 25, by the position of slider 7, so that the zoom lens cannot be focused outside the limit of the flash illumination.
Patent GB-878424-A (GB)
Title: An improved expanding core for producing cylindrical holes in concrete
IPC: B28B7/30
Filed: 1959-02-27
Abstract: 878,424. Expanding cores. JANSSON, E. B. Feb. 27, 1959, No. 7013/59. Class 87(2). The cone, shown in its fully expanded position, comprises a sheet 1 bent into a hollow cylinder, the edges of the sheet overlapping, and inside the cylinder is mechanism comprising an axial pull bar 2, on which are fixed collars 15 with a sleeve 3 between them, and link mechanism 4, 5, 6. The members 4, three in number, are rigidly secured to the sleeve 3 and the members 6, also three in number, are rigidly secured to the wall 1, the links 5 being pivoted at each end to the members 4, 6. On the rim 7 of an end cover is a cam 10 and cam rail 11. The pull bar 2 is attached to the cover to allow relative rotary but not axial, movement. When the cover is rotated the cam 10 rides on a projection 13 or 13<SP>1</SP> from the wall 1 and the pull bar rises, causing the links 5 to pivot and pull the wall inwards. When the cover is rotated in the opposite direction the cam rail 11 is forced downwards, by a projection 13 or 13<SP>1</SP>, and the consequent downward movement of the cones and pull bar pivots the links to expand the cone. The projectors 13, 13<SP>1</SP> form parts of a bayonet cover securing catch.
Patent GB-656513-A (GB)
Title: Improvements in or relating to venting arrangements for oil cargo tanks
IPC: F16K17/19
Filed: 1947-03-13
Abstract: 656,513. Venting. LARSEN, F. B., and LARSEN, A. C. March 13, 1947, No. 7019. [Class 21] [Also in Group XXIX] In a venting arrangement for oil tanks on board ship of the kind comprising a housing with a compartment connected to a tank and containing vacuum and pressure relief valves 9, 5 to permit communication with, respectively, atmosphere and a vent line 1B, the valves are co-axial and the pressure relief valve is provided with an external handle 13 by which it can be opened and also held open. After the handle has been pulled up to open the valve 5, it is retained in that position by rotating it through 90 degrees so that abutments 13A thereon engage over the arms of a yoke 2A upstanding from the housing. Valve 9 is urged to the closed position by its own weight, but valve 5 is loaded by a spring 7 and is connected to its spindle by a cup-shaped nut 6. Inlet 1A is connected to the ullage hatch of the tank, and outlet 1B, to a venting header. The air inlet 12A is covered by a wire gauze screen. Several valves connected to different tanks may be combined in a single unit.
Patent GB-131092-A (GB)
Title: Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus.
Inventor: LATOUR MARIUS
IPC: H03F3/48
Filed: 1918-04-26
Abstract: 131,092. Latour, M. April 30, 1917, [Convention date]. Addition to 127,318. Wireless signalling.-In a lamp amplifier for wireless telegraphy comprising several lamps interconnected by iron-cored transformers, the same lamp is employed to amplify the high-frequency current and the low-frequency current. In the arrangement shown, the high-frequency current is amplified in the lamps 1 and 2 and detected in the lamp 3. The rectified current is supplied to the filament and grid circuit of the lamp 2 through the transformer 9 and the amplified low-frequency current supplied to the receiver 10, which is shunted by a capacity 14 to prevent high-frequency currents from passing through it. The windings of the transformer 9 are shunted by capacities 12 and 13 to prevent the passage of high-frequency currents through them.
Patent GB-1104767-A (GB)
Title: Field effect transistor and method of manufacture
IPC: H01L29/06
Filed: 1967-02-14
Abstract: 1,104,767. Insulated gate field effect transistors. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. 14 Feb., 1967 [1 July, 1966], No. 7133/67. Heading H1K. In an insulated gate field effect transistor a dielectric layer with a relatively low surface charge density is provided over the channel region and a dielectric layer of higher surface charge density elsewhere. In the embodiment, Fig. 2, which is otherwise of conventional structure, the silicon oxide dielectric 20 over the channel is formed, after removal of the oxide layers used in diffusing the source and drain regions, by thermal growth in a dry atmosphere at 1200 C. or by anodic growth or vapour deposition followed by heating at 750-900 C. An oxide layer of higher surface charge density is subsequently formed over the remainder of the silicon body by a low temperature process such as anodization or vapour deposition. In an alternative form silicon oxide is used as the gate dielectric while the rest of the body is covered with silicon nitride. In any case the dielectric is made thinner over the channel than elsewhere. This measure and the use of the different surface charge density dielectrics reduce the risk of uncontrollable source-drain current paths being formed.
Patent GB-823445-A (GB)
Title: Improvements in and relating to injectable corticotrophin preparations
Inventor: MICHAEL STEPHEN ERNEST
IPC: A61K38/35
Filed: 1957-03-05
Abstract: Injectable preparations are made by dissolving Corticotrophin (A.C.T.H.) in an aqueous solution of an acidic gelatine derivative, i.e. one which the amino or hydroxyl groups of the gelatine have been substituted in such a way as to introduce organic or inorganic acidic groups.  Examples of such derivatives are the products of reaction of gelatine with homo or chloro-acetic acid, POCl3, phthalic anhydride, succinic anhydride.  The corticotrophin used may be highly purified or of a lower intrinsic potency.
Patent GB-144593-A (GB)
Title: Apparatus for offence or defence against submerged or partially submerged obstructions
IPC: B63G9/02
Filed: 1916-05-22
Abstract: 144,593. Burney, C. D. May 22, 1916. Coupling and capping.-Consists in modifications in "paravanes," i.e. towed or moored mines of the kind described in Specification 8117/15, [Class 113 (i), Ship and boat fittings &c.], and the Specification describes inter alia an elastic coupling for the towing cable. The cable C is resiliently connected to the shackle 128 - - 131 by a rubber buffer 125, and its end is splayed over, and held in a conical block 126 by a white metal filling. The hole in the block 126 is coated with resin to prevent the white metal sticking in it, and thereby preventing rotation of the cable in the cup.
Patent GB-716736-A (GB)
Title: An improvement relating to the production of electric fuses
Inventor: BRIMLEY KENNETH JOHN
IPC: H01H69/02
Filed: 1952-03-21
Abstract: 716,736. Electric blasting fuses. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 19, 1952. [March 21, 1952], No. 7335/52. Class 9(1) [Also in Group XXII] In producing electric fuses, a bare end 5 of an insulated wire 6 is soldered to each of two metal foil pole pieces 3 separated by a sheet of non- conducting material and extending from a fusehead 2, by using a pair of electrodes 7, 7 to apply a current to heat each end and to press the end and an intervening portion of solder 4 against a pole piece.
Patent GB-885737-A (GB)
Title: Improvements in or relating to control arrangements for power transmission systems
IPC: F16H63/30
Filed: 1959-03-03
Abstract: 885,737. Change-speed controls. REGIE NATIONALE DES USINES RENAULT. March 3, 1959 [March 7, 1958], No. 7340/59. Addition to 769,862. Class 80 (2). In the automatic change-speed control of the parent Specification wherein a succession of current pulses are fed to a relay winding 6 by charging a capacitor 10 from a battery 5 and discharging it to the relay through contacts operated by the gear output shaft la so that the mean intensity of the current in the winding is proportional to the speed of the said shaft, the relay acting to energize a gear-change coil at a predetermined speed, and a variable resistor 11 controlled by the accelerator 11d renders the gear change responsive also to engine load, a further adjustable resistor 27 is connected between the battery and the relay for engagement of 2nd gear, whilst the vehicle is standing and the said pulse feeding means is inoperative, and is so adjusted that when engine load at starting is low and the resistance at 11 is high the relay is actuated and when engine load at starting is high and the resistance at 11 is low the relay is released for low-gear restoration. In Fig. 1 wherein the pulse feeding means comprises brushes 2, 3, 4 co-operating with a conductive angle piece 29 keyed on the shaft 1a and the accelerator controlled variable resistor 11 is shunted across the winding 6, the adjustable resistor 27 is shunted across the pulse feeding means 1. In Fig. 2 (not shown) which is similar to Fig. 1 of Specification 885,736 wherein the capacitor 10 is carried by a bar-type commutator rotating with the shaft 1a, the accelerator-controlled variable resistor 11 is battery connected in series with an additional and opposing relay winding and the adjustable resistor 27 is battery connected in series with a further relay winding. The relay energizes the winding 9 of an electromagnetic friction plate clutch (Fig. 3, not shown) to engage the second gear of a constant mesh box which has a one-way clutch on its countershaft permitting the first gear to be overrun and has a sliding dog clutch for direct drive. Specification 799,196 also is referred to.
Patent GB-244621-A (GB)
Title: Improvements in or relating to electrically controlled lifts
IPC: B66B1/50
Filed: 1925-03-19
Abstract: 244,621. Fothergill, J. March 19, 1925. Lift cages and doors, locking and unlocking and operating.-Lock operating mechanism for lift doors of the kind in which the lock is operated by an arm moved by the cage is provided with means whereby the lift controlling circuit is opened and the lift stopped if the cage commences to move away from the doorway when the arm operating the locking mechanism fails to lock the door. The door bolt is held in the locked position by a spring pressed rod b which engages the bolt retaining lever and in turn is locked by a projection d on a spindle q, as described in Specification 242,144. The spindle q has a projection e carrying one contact of a switch a and also has an arm j carrying one contact of a switch f the other contact of which is carried by a pivoted extension c on the arm j, the extension being pressed outwards by a spring and adapted to be operated by a cam m on the cage. Two such switches are provided at each floor and are arranged in parallel and in the electrical control circuit of the lift. If the lift is started and the arm i fails to return the projection d to the locking position, then as the cage moves away from the doorway the cam m will release the extension c so that the switch f will be opened and the lift stopped. The cam may be attached to a solenoid in the electrical circuit so that the cage can move past any floor without operating the locking mechanism.
Patent GB-115907-A (GB)
Title: Improvements in Apparatus for Grinding Twist Drills.
Inventor: WEIDLICH ARTHUR
IPC: B24B3/24
Filed: 1917-05-24
Abstract: 115,907. Weidlich, A. May 24, 1917. Twist drills, sharpening.-In a device for use in grinding the lips of twist drills, a sleeve g of the drill chuck is mounted in the eccentric eye of a bush f, which in turn is carried in a ring a that is pro. vided with an inclined stem d, which is carried in a support and about which the ring may be swung. The axis of oscillation x-x and the axis y-y of the chuck cross each other, but lie in different planes, and by turning the eccentric bush the distance apart of these planes may be adjusted. The bush is turned by a handle m and is locked by a setscrew. The chuck is locked to the ring in one of two positions, 180 degrees apart, by means of a spring plunger o.
Patent GB-570104-A (GB)
Title: Stabilization of polyvinyl acetal
IPC: C08K5/17
Filed: 1943-05-11
Abstract: Polyvinyl acetal resins are heat-stabilized by incorporating therein ethylene diamine or a derivative thereof having the formula R1R2N.C2H4NR1R2, in which R1 is an aryl or hydrogenated or substituted aryl group and R2 is hydrogen or alkyl and both R2's may constitute an ethylene group forming a piperazine derivative. When R2 is hydrogen, the stabilizer may be an amino salt. Polyvinyl acetal, propional and butyral are specified. Stabilizers specified are N,N1-dicyclohexyl ethylene diamine or piperazine, N,N1 - di - 2 - methyl cyclohexyl ethylene diamine or piperazine, N,N1-di-o-tolyl ethylene diamine or piperazine, N,N1-diphenyl piperazine, N,N1 - (2,4 - dimethyl cyclohexyl) piperazine, N,N1 - di - (3 - methyl cyclohexyl) dithiocarbamate of ethylene diamine.  The examples describe casting films from solutions in alcohol of polyvinyl butyral and N,N1-di-2-methyl cyclohexyl piperazine or N,N1-bis-(2-methyl cyclohexyl) piperazine acetate.
Patent GB-1220203-A (GB)
Title: Tobacco smoke filters
IPC: D04H1/425
Filed: 1969-02-12
Abstract: 1,220,203. Tobacco smoke filters. H. F. & PH. F. REEMTSMA. 12 Feb., 1969 [13 Feb., 1968], No. 7521/69. Heading A2C. [Also in Division D1] In order to enable a method involving the reflection of infra red radiation to be used to control the proportion of an esterbased plasticizer and binder, e.g. glycerine triacetate or diethyl citrate, added by spraying to a fibrous cellulose acetate material used in the manufacture of tobacco smoke filters, the plasticizer and the cellulose acetate material having similar infra-red absorption characteristics, an indicator substance having different infra-red absorption characteristics is added to the plasticizer. A suitable indicator is an aliphatic polyglycol monoether, e.g. diethyleneglycol monoethylether, diethyleneglycol monomethylether, or triethyleneglycol monomethylether.
Patent GB-986610-A (GB)
Title: Improvements in and relating to switch devices for vehicle heaters
IPC: B60H1/22
Filed: 1964-02-24
Abstract: 986,610. Controlling vehicle heaters. WEBASTO-WERK G.m.b.H. Feb. 24, 1964 [May 24, 1963], No. 7560/64. Heading F4T. The motor 10 driving the fuel pump 9 of a vehicle heater is energized by a relay 6 connected in parallel with an engine-driven generator 2 connected in series with a lamp 3, the ignition key 4 of the engine and the vehicle battery 1. When the engine is stationary the current from the battery is insufficient to close the relay switch 8 but when the engine is running the generator closes the relay switch 8. A further switch in the circuit of the pump motor 10 permits the heater to be switched on when the relay switch 8 is closed.
Patent GB-684697-A (GB)
Title: Lubricating grease containing soaps of tall oil
Filed: 1950-03-27
Abstract: The process for manufacturing lubricating grease according to the parent Specification (in which lubricating oil is thickened with a metal saop of a fatty acid having from 12 to 22 carbon atoms in the molecule and there is added from 2 to 20 per cent by weight of the total composition of a metal salt of a heterocyclic carboxylic acid) is modified by the complete or partial substitution of tall oil acids for the C12-C22 fatty acid.  Suitable heterocyclic carboxylic acids are furoic acid and thiophene carboxylic acid.  The salt of the heterocyclic carboxylic acid may be prepared as in the parent Specification by the Cannizzaro reaction on the corresponding aldehyde.  In the case of sodium furoate (which is the preferred salt) the furfural may be added to the tall oil and the soap and salt prepared together in situ by the action of sodium hydroxide, or the furfural may be present as an impurity in commercial tall oil. In this latter case the amount may be adjusted to form the requisite proportion of sodium furoate.  Preferred proportions are 2-10 per cent, particularly 3 to 7 per cent of salt and 8 to 15 per cent of soap.  The lubricating oil may be a mineral oil of viscosity from 35 to 150 S.U.S. at 210 DEG F or 50 to 1,000 S.U.S. at 100 DEG F. Synthetic oils may also be used.  Antioxidants, oiliness agents, corrosion inhibitors and extreme pressure compounds may also be added.  In an example (all parts by weight) 10 per cent of furfural and 30 per cent of mineral oil of viscosity S.U.S. at 210 DEG F are charged into a grease kettle and 3.18 per cent of caustic soda added as a 33.4 per cent aqueous solution.  After completion of reaction, 15 per cent of tall oil (acid No. 183.2 and saponification No. 185.2) is added and neutralized with 2 per cent of caustic soda added as a 40 per cent aqueous solution.  The mixture is heated to 400 DEG F and 38.82 per cent of the same mineral oil added in small portions. Finally 1 per cent of phenyl alpha naphthylamine is added and the grease allowed to cool.
Patent GB-682060-A (GB)
Title: Improvements in or relating to toy vehicles
IPC: A63H30/06
Filed: 1950-09-29
Abstract: 682,060. Mechanical wheeled toys. FLORY PATENTS, Ltd., H., and FLORY, H. E. Sept. 29, 1950. No. 7734/52. Divided out of 682,032. Drawings to Specification. Class 132 (iii). [Also in Groups XXIV and XXVI] The Specification claims the transmission mechanism described in Specification 682,032.
Patent GB-1515496-A (GB)
Title: Oxygen sensor having protective hood around solid electrolyte tube
IPC: G01N27/409
Filed: 1977-02-24
Abstract: 1515496 Solid electrolyte oxygen sensor NISSAN MOTOR CO Ltd 24 Feb 1977 [24 Feb 1976] 07799/77 Heading G1N In an oxygen sensor comprising a closed ended solid electrolyte tube 12 surrounded by a closed ended, cylindrical, protective cap 30, the gas inlet to the protective cap is an axially elongated aperture 38 and the gas outlet comprises one or more apertures 40, diametrically opposite the inlet and having a smaller total area than the inlet, and the sensor comprises means for locating the sensor with the inlet facing into the approaching gas stream. The outlet may comprise several, preferably equally spaced, circular holes, either uniformly spaced along or at one end of the cap, or may comprise a slit. The ratio of inlet area to outlet area is between 2:1 and 15:1. The locating means may comprise a pin to co-operate with a hole or slot on a gas pipe.
Patent GB-858682-A (GB)
Title: Improvements in or relating to sheet feeding devices
IPC: B65H1/04
Filed: 1958-03-11
Abstract: 858,682. Feeding sheets. ROSS, H. H. Nov. 19,1958 [March 11,1958], No. 7821/58. Addition to 799,806. Class 100(1) The sheet-separating device described in the parent Specification is modified in that the tension springs or elastic bands 14 of the friction separator arm 10 are secured to a plate 9 which forms one of a number of division plates which are arranged horizontally in a vertical filing tray, these plates each supporting a pile of filing cards, with the arm 10 arranged beneath each plate. Fig. 2, which is a view from the underside of a plate 9, shows the arm 10 having an end 12 carrying a strip 13 of rubber or other friction material which rests on the top card of the pile, and the tension springs in the form of rubber bands 14 which are secured to the arm 10 at 15 and are anchored on lugs 16 on the plate 9. The plate 9 has an extension 17 carrying a lug 20 which serves as a name or index plate. The vertical tray and division plate 9 may be constructed as described in Specification 750,467.
Patent GB-535925-A (GB)
Title: Improvements in or relating to deposition backings or blankets for the production of perforated films or sheets of rubber or similar material
IPC: B29C67/24
Filed: 1940-05-01
Abstract: 535,925. Coated fabrics; compound sheet materials. INTERNATIONAL LATEX PROCESSES, Ltd. May 1, 1940, No. 7823. Convention date, May 13, 1939. [Class 140] [Also in Group V] A deposition backing or blanket for the manufacture of perforated rubber films or sheets consists of a minutely perforated rubber sheet one surface of which is rendered non-adherent to rubber, the other surface being united to one surface of a base layer of air-impervious sheet material which may be rubber sheet and may have a reinforcing layer attached to the other surface. The perforated sheet of unvulcanized rubber 1, Fig. 1, which may be produced as described in Specification 419,015, [Group V], is united for instance by passing between rolls with an air-impermeable unvulcanized sheet 3, the compound sheet being then vulcanized and the deposition surface 4 treated by halogenating or oxidizing agents to render it non-adherent to the coats of latex to be applied to it in the preparation of perforated sheets therefrom. Replicas of the blanket so formed may be prepared by backing with impermeable rubber perforated sheets produced by the deposition of layers of latex thereon. The base layer may comprise a sheet of rubber calendered to a fabric or to alternate layers of fabric and rubber bonded together. An alternative method of preparing a backing is shown in Fig. 4, where layers 19 of latex are successively superposed over woven threads 15 coated or impregnated with rubber 16 and attached to a rubber sheet 17, heat being applied to expand the air in the interstices between the threads and thus to form perforations 20 in and also to dry the latex layers, so building up a sheet 21 having perforations 22. Final latex sealing layers are applied over the perforated layers for instance at room temperature so that perforations are not formed therein, and a stiffening layer 24 which may be bonded with fabric layers is applied. The under-surface of the finished backing is treated to render it non-adherent to rubber. The blankets may .also be prepared by depositing sealing layers over perforated rubber base sheets produced as described in Specification 416,904, [Group V].