baber/WOPTO huggingface dataset:
Patent GB-690691-A (GB)
Title: Improvements relating to electrical resistors and printed circuits
IPC: H05K1/09
Filed: 1949-10-29
Abstract: 690,691. Compound sheet materials. STRONG, H. V., and EISLER, P. Oct. 25, 1950. [Oct. 29, 1949] No. 27782/49. Drawings to Specification. Class 140. [Also in Group XXXVI] A multi-layer sheet material, for use in the production of printed electric circuits and resistors, comprises an insulating support, at least one layer of electrical resistance material adhering to the support, and a layer of highly conductive material adhering to the resistance material and in intimate electrical contact tlierewith. The material may be made by coating a sheet of copper foil with a mixture of colloidal graphite, water and bichromated fish glue. The coating is dried and heated to 350‹C. to burn the carbon into the foil. The coated side of the foil is then cemented to an insulating support such as impregnated paper. The highly conductive layer may alternatively consist of tinned copper foil, aluminium foil, zinc foil or silver foil, a convenient thickness being 0.002 inches. The resistance layer may also be of metal, lead, a niekel-chromium alloy and various other alloys being suitable, or various semiconductive materials, such as silicon, germanium or lead sulphide may be used. The insulating support is preferably flexible, and may consist of impregnated paper or fabric or a plastic film or varnish. The Provisional Specification refers to Specifications 639,658, 690,328 and 690,696, [all in Group XXXVI]
Patent GB-171575-A (GB)
Title: Improvements in hydraulic oil storing and delivery systems
IPC: B67D7/32
Filed: 1920-09-30
Abstract: 171,575. Dow, E. Y., and McClelland, N. E. Sept. 30, 1920. Direct liquid-pressure apparatus. - A system wherein oil is stored over and displaced by water comprises an oil-storage tank 1 connected by a pipe 4 to a filling-compartment 2 and by a pipe 5 with a tell-tale compartment 2<a>, a water-header 8, 9 provided with a valve-controlled supply-pipe 10 and an cverflow pipe 11, an'd an oil-delivery pipe 7 connected to the pipe 4. To the top of the header 8 is connected a small pipe 12 having an open end above the level of the chamber 2. The compartments 2, 2<a> are connected by a pipe 13 fitted with a stop-cock for testing whether the level of the oil is correctly indicated by the level in the tell-tale compartment 2a. The pipe 13 is preferably in the form of a siphon, for drawing off any water in the pipe 5 into the pipe 4 and .thence back to the tank 1.
Patent GB-865515-A (GB)
Title: Improved painting device
IPC: A46B11/06
Filed: 1959-08-14
Abstract: 865,515. Reservoir brushes. RALPH, V. J. Aug. 14, 1959, No. 27860/59. Class 19. Paint is drawn from a bulk supply container 13 past a non-return valve 11 in a flexible pipe line 15 by a hand-actuated pump 10 and is pumped on through a spring-biassed, non-return valve 9 in a flexible pipe line 6 and a bore 5 in the stock of a pint brush 1 to be discharged in the bristles 3 adjacent the tips thereof through flexible ducts 2. The container 13 and pump 10 may be replaced by a collapsable tube containing paint. Two other forms of pump 10, which as shown consists of a resilient ball, are also described.
Patent GB-1360491-A (GB)
Title: Textile article dyeing apparatus
IPC: D06B5/12
Filed: 1971-06-15
Abstract: 1360491 Dyeing machines M BLUMENKAMP 15 June 1971 [16 June 1970] 27930/71 Heading D1L [Also in Divisions E2 and F2] A dyeing apparatus, shown partly in section in a side view has a tank rotatable about its horizontal axis, has inlets 11 and 12 for the supply of, and outlets 13 and 14 for the withdrawal of, a dye bath, and has a hermetically sealable opening 18 for the placing of textile articles in the tank. In addition a heating coil 15, shielded from the rest of the tank by a cover 1a and a grating 10 which covers the inlets and outlets 11, 12, 13 and 14 are provided, the tangential positioning of the inlets causing the bath to rotate around the tank, which tank is itself rotated, the closure 18 being opened, to discharge the contents of the tank after the completion of the dyeing. A motor, by means of gearing, rotates the tank, the closure 18 is opened by a piston and cylinder arrangement and a further piston and cylinder arrangement may disconnect the inlets from their supply pipes before rotation of the tank.
Patent GB-1220956-A (GB)
Title: Improvements in nails
Inventor: HUMPHRIES OLIVER ROBSON
IPC: F16B15/00
Filed: 1968-06-13
Abstract: 1,220,956. Nails. O. R. HUMPHRIES. 11 June, 1969 [13 June, 1968], No. 28095/68. Heading F2H. An assembly for temporarily securing shuttering boards 10 to timber bearers 11 comprises a nail provided with a groove or notch 14 between a head 12 and pointed end 13 and a sleeve 15 loosely encircling a part of the nail, that portion adjacent the pointed end 13 and which is not encircled by the sleeve 15 being provided with one or more longitudinal flats 17. With a board and bearer secured together as shown the nail may be broken at the groove or notch 14 by applying partial rotary motion to the head 12 whereby the board 10 can be easily removed from the bearer leaving the sleeve 15 embedded in the board 10. The head may be square or hexagonal in cross-section and the sleeve 15 may be bevelled at its leading end.
Patent GB-359150-A (GB)
Title: Arrangement for freeing boats from water
IPC: B63B13/00
Filed: 1930-09-19
Abstract: 359,150. Removing leakage. CLASON, J. C., 10, Kammakaregatan, Stockholm. Sept. 19, 1930, No. 28101. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 20, 1930.] [Class 113 (i).] A device for removing leakage from boats operated by suction created by the motion of the craft through the water comprises a casing 5 arranged beneath an aperture in the bottom and provided with an opening 8 between transverse lips 6, 7. The inboard side of the aperture is provided with a grid 22 in which is mounted a spring-operated spindle 17 terminating in a valve 18 which can be moved to close apertures 15 in a bridge-piece 16. The suction created by the motion of the craft pulls down flap valves 20 controlling the apertures 15 and withdraws water from the craft. When the boat is at rest, the valves are pressed on their seats by the water. In a modification, the suction lips are arranged on either side of the casing.
Patent GB-1102829-A (GB)
Title: Contact structure for a power circuit breaker
IPC: H01H71/24
Filed: 1966-06-23
Abstract: 1,102,829. Heavy current switches; switch contacts. SQUARE D CO. 23 June, 1966 [1 Oct., 1965], No. 28126/66. Heading HlN. A contact structure for a low-voltage power circuit-breaker includes a contact frame 80 pivoted on a conducting shaft 76 and carrying a main contact pivot-pin 87 on which pivot several movable main contact arms 109 and the two legs 114, 115 of a hinge fork 116 providing part of the operating member, the fork 116 carrying a pin 120 on which pivots a movable arcing contact arm 121, and the shaft 76 carrying spring-pressed pivotable conducting contact pressure fingers 90, 90a for biasing the movable contact arms 109, 121, respectively. Movement of the operating member 129/128/116 causes the arcing contacts 41, 122, to engage before the main contacts 51, 110, the arcing contact arm 121 rotating about its pivot-pin 120 against the bias of fingers 90a, and then the main contact arms 109 rotating about pivotpin 87 against the bias of fingers 90 after contacts 51, 110 have engaged. The contact pressure is determined by springs 102. Upon break, the main contacts 51, 110 separate first (Figs. 8, 9, not shown)' A conventional magnetic trip means (not shown) is used for actuation. Eleotrodynamic forces hold the contacts closed.
Patent GB-646064-A (GB)
Title: Machine for hardening felt
IPC: A42C1/02
Filed: 1947-10-21
Abstract: 646,064. Hat-making machines. MERRIMAC HAT CORPORATION. Oct. 21, 1947, No. 28148. Convention date, April 24. [Class 42 (ii)] [Also in Group VII] A machine for hardening felt and particularly hat bodies comprises a rotatably mounted cone-shaped central member which can be indexed to advance successive portions of a hat body placed over it into the operating areas of oscillating side- and tip-hardening members situated on opposite sides of the central member, and means to direct an air stream between the felt and the central member in a position in advance of the hardening process. A hollow cone-shaped internal hardening member 14 having a roughened outer surface impervious to steam is mounted on a shaft 16 centrally bored at 22 to admit steam and rotatably supported by bearings in a base 10. The member 14 can be rotated in steps by means of a hand-operated or automatic pawl, not shown, which coacts with a ratchet-wheel 24 mounted centrally on the shaft 16. A hollow side-hardening member 30 is supplied with steam, through a pipe 34, which permeates through the shell to its curved, roughened, felt-engaging surface. A support arm 36 which is pivoted on shafts 42 carried by upstanding brackets 44 on a mounting 28 slidable in the base 10, resiliently suspends the member 30 by means of rods 38 which slide in pivoted blocks 40. A fluid pressure piston and cylinder unit 50 moves an adjustable lever 60 through a bell-crank lever system so that the member 30 can be raised about the axis of shafts 42 each time the central member 14 is indexed forwardly, and an eccentric strap driven indirectly by an electric motor is pivoted at 48 to rapidly oscillate the member 30 during stationary periods of the member 14. Mechanism which is generally similar to that operating the side hardener 30 also operates in unison, a tip hardener D of similar construction to the side hardening member 14. A spring 72 surrounding a rod 80 pivotally connected to an arm 68 supporting the tip hardening member carries the weight of the latter, whose downward movement is limited by an adjustable stop striking a bracket 84 fixed to a frame 62. A pipe 12 directs a jet of air between the hat body and the central member 14 to prevent wrinkles forming in the hat body.
Patent GB-922932-A (GB)
Title: Adsorbing agent
IPC: B01D39/06
Filed: 1960-08-15
Abstract: An adsorbing material consists of grains of silica sand, stone meal, ground quartz or ground flint having a continuous coating of free carbon, said carbon constituting between 0,25 and 1,5% by weight of the whole.  The material may be used for the disposal of oil from roads and streets, and for binding and submerging oil floating on water.  In the example, the material is prepared by heating 98 parts by weight of dry sand with 2 parts by weight of a solar oil-diluted asphalt emulsion for 15-20 minutes in a rotary retort to a temperature of between 400 and 450 DEG C., during which time the hydrocarbons of the asphalt are decomposed to carbon. The material is then allowed to cool, and on analysis shows a pure carbon content of 0,9% by weight.ALSO:An adsorbing material consisting of grains of silica sand, stone meal, ground quartz or ground flint having a continuous coating of between 0,25 and 1,5% by weight of free carbon, may be used for the disposal of oil from roads and streets, and for binding and submerging oil floating on water.ALSO:Silica sand, stone meal, ground quartz or ground flint is coated with between 0.25 and 1.5% by weight, of the whole, of free carbon by heating it with liquid materials which deposit free carbon.  In the example, 98 parts by weight of dry sand are heated with 2 parts of a solar oil-diluted asphalt emulsion for 15-20 minutes in a rotary retort to a temperature of between 400 DEG  and 450 DEG  C., during which time the hydrocarbons of the asphalt are decomposed to carbon.  The product is cooled, and on analysis shows a pure carbon content of 0.9%.
Patent GB-333423-A (GB)
Title: Improvements in anti-cavitation plate for outboard motors
IPC: B63H20/06
Filed: 1929-09-17
Abstract: 333,423. Percival, S., (Outboard Motors Corporation). Sept. 17, 1929. Detachable propelling installations.- The anti-cavitation plate of an outboard motor installation is formed as a discharge outlet for the exhaust gases. The anti-cavitation plate 6 is formed with a rearward flared opening 7 and is connected bv an exhaust pipe 8 with the exhaust manifold of the engine. The plate is of ovoid form in horizontal cross section.
Patent GB-874691-A (GB)
Title: Improvements in or relating to multivibrators
IPC: H03K3/282
Filed: 1959-08-18
Abstract: 874,691. Pulse modulation circuits. LANDIS & GYR A.G. Aug. 18, 1959 [Aug. 20, 1958], No. 28197/59. Class 40(5) The repetition frequency of a pulse train generated by a multivibrator T 1 , T 2 , is made linearly proportional to a D.C. control voltage Us by including a parallel resistance-capacitance network R 2 , C 2  in the input circuit of the multivibrator.
Patent GB-516954-A (GB)
Title: Improvements in and relating to electromagnetic switches
IPC: H01H71/24
Filed: 1938-09-28
Abstract: 516,954. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 28, 1938, No. 28231. Convention date, Oct. 1, 1937. [Class 38 (v)] An electromagnetic switch comprises an armature 10 biassed to the open position by gravity, closed by the connection of the operating coil, 16, to a source of direct current and maintained in the attracted position by the residual magnetization of the core which consists of a section of soft iron, 19, 20, and a section 18 of magnetic alloy having a high residual magnetic flux. In closing, the armature opens a switch 35 against its bias spring, 37, to de-energize the operating coil. Coils, 13, 14, carry the switch current so that, on overload, the residual magnetization is destroyed and the switch opened while coil, 15, may be energized to produce the same effect. In the position shown in Fig. 2, the solenoid, 28, is energized so that the switches 29, 30 are closed. On depressing switch 31, coil 16 is energized through lead, 38, switches, 29, 31, 30 and lead 40 so that the armature moves to the attracted position, switches 21, 34 are closed and switch 35 opened, thus disconnecting solenoid 28 and allowing switches 29, 30 to open and disconnect the supply to coil 16. The armature is maintained in the attracted position by residual magnetization which may be destroyed by energizing coil 15 through switches 41, 34 and lead 42, or by excessive current in the coils 13, 14 which are connected in two of the supply lines to a motor 25. this allowing the armature to fall back and switch 21 to open. The opening coil 15 may be energized with alternating current. Specification 424,746, [Group II], is referred to.
Patent GB-509913-A (GB)
Title: Process for manufacturing synthetic resin compounds
IPC: C08L61/06
Filed: 1937-10-18
Abstract: 509,913. Gelatine compounds ; phenolaldehyde condensation products. MONIER, J. B. Oct. 18, 1937, No. 28308. Void. Convention date, March 8. [Class 2 (iii)] Gelatine (including bone- or other gelatinous glue) is swelled in water, dissolved in glycerine and heated with acetic acid with or without the addition of colophony, boric acid, or both. The product is incorporated in a phenol-aldehyde initial condensate which is then dehydrated in vacuo. The product obtained may be used in varnishes, for impregnating wood, for making paper, e.g. insulating paper, and for moulding, e.g. gramophone records.
Patent GB-1563439-A (GB)
Title: Centrifugal fan with sound-absorbing means
IPC: F04D29/66
Filed: 1977-07-06
Abstract: The noise of the radial-flow fan (5) is attenuated by a sound-absorbing insert (3). In order to achieve attenuation even at low frequencies, the thickness of the sound-absorbing insert (3) deviates from the average thickness. The internal interface (2) over more than one tenth of the rotor perimeter of said insert has the approximate shape of a helix. <IMAGE>
Patent GB-1432130-A (GB)
Title: Electrostatic copying machine
IPC: G03G21/14
Filed: 1974-06-26
Abstract: 1432130 Electro-photography ING C OLLIVETTI & C SpA 26 June 1974 [9 July 1973] 28394/74 HeadingG2H A copying machine comprises a motor, a first transport system actuated by the motor for transporting an original along a scanning zone 96 past an illuminating system 91, a second transport system actuated by the motor for transporting a photo-conductive copy sheet fed from a feed station 44 through a corona-effect electrostatic charging device 27 and through an exposure zone 93 at which an image of the original is formed by an optical system 92, means for synchronizing the movement of the said first and second transport systems and for co-ordinating the actuation of the charging device 27 and the illuminating system 91 with the movement of the first transport system, the said means being constituted by first, second and third integral cams actuated by the motor, a clutch device controllable into a first operative position of transmission of the motion from the motor to the cams and into a second position of non-transmission of the motion from the motor to the cams, a key coupled to the clutch device for controlling the same into its first operative position and for activating the corona charging device 27, means actuated by the second cam for transmitting the motion from the motor to the first transport system and for activating the illuminating system 91, actuating means actuated by the first cam and controlling the clutch device into the second operative position, and second actuating means actuated by the third cam for feeding the copy sheet to the second transport system. The copy sheet may be fed from a roll 52 from which it is cut-off by a cutter 46, or single sheets may be fed into the machine on a withdrawable tray 47.
Patent GB-660342-A (GB)
Title: Improvements in and relating to anchorage means for use in concrete and like constructions
Inventor: BERTLIN DENNIS PERCY
IPC: E04B1/41
Filed: 1949-11-07
Abstract: 660,342. Wall shuttering. NUTTALL, SONS & CO. (LONDON), Ltd., E. Nov. 7, 1949, No. 28422/49. Class 20(ii) [Also in Group XXV] Shuttering for use in casting concrete walls &c. is secured by bolts 15 screwed into the heads of coarse, left hand thread screws 5 embedded removably in the concrete during castin. Shuttering in the form of a flanged plate 7 is fixed in position by means of a pair of connected but spaced rails 8 having a lifting eye 11 and a retaining angle bar 10 for the top of the plate 7. Clamping is effected by a bolt 15, screwed into the head of embedded screw 5 (described in Group XXV). in conjunction with wedges 18. In the case of long walls the rails may carry a plankway 14. A bolt and washer 20 support a screw 19 to be embedded to serve as pinning screw for a subsequent cast. A previously embedded screw has been removed from 22.
Patent GB-1137435-A (GB)
Title: Improved device for tripping a circuit breaker
IPC: H01H83/12
Filed: 1966-06-24
Abstract: 1,137,435. Automatic circuit - breakers. HEINEMANN ELECTRIC CO. 24 June, 1966 [6 July, 1965], No. 28437/66. Heading H1N. A tripping device is provided with a link 75 pivotally connected to an armature 22 and at 77 to a tripping finger 35 which is pivoted at 74 on a support. As shown, a spring 45 overcomes the force exerted by an electromagnet on the armature 22 when under-voltage conditions occur and the finger 35 engages and moves a tripping armature 40 of the circuit-breaker unit to which the tripping device is attached. By interchanging the functions of the pivots 74, 77, the device may cause tripping in response to over-voltage conditions, or act as a shunt trip which responds to the operation of a switch. The circuit-breaker to which the device is attached may be that of Specification 1,011,422.
Patent GB-616934-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M50/514
Filed: 1946-09-23
Abstract: 616,934. Battery lamps. SMITH, L. H., and SMITH, J. W. Sept. 23, 1946, No. 28463. [Classes 39 (ii) and 75 (iii)] [Also in Group XXXVI] A battery is provided with a holder A for a lamp bulb, gas lighter or other appliance, the centre contact of the holder being connected permanently, by soldering for example, to the battery terminal B. A brass strip D is connected to the outer contact of the holder and terminates near an opening H in the battery carton. The circuit is completed by pressing the end of the strip D so that it makes contact with the zinc can C of the battery or with a metal strip soldered to the zinc can of the end cell if the battery comprises more than one cell. The space G is filled with sealing compound which covers the connections to the holder A.
Patent GB-519147-A (GB)
Title: Improvements in multi-ply non-sifting bags
IPC: B65D30/00
Filed: 1938-09-30
Abstract: 519,147. Multiply bags. WEBER & CO., Inc., H. G, Sept. 30, 1938, No. 28528. Convention date, June 6. [Class 94 (ii)] A multiply bag tube, which may be gusseted is slit at 7, 11 ; 8, 12 ; along the respective plies so that when the diamond fold is formed portion of underlying plies will be exposed in order that the gum track D, which extends in two parallel lines across the end flaps 1, 2 may lie on each side of the exposed inner plies, and also form a connecting gummed line 15 for sealing the closure flap. In a modification, Fig. 4, the inner ply is uncut, being folded at 23. The plies may be adhered together by paste spots 16.
Patent GB-749622-A (GB)
Title: Improvements in and relating to shirts and like articles of clothing
IPC: A41B1/00
Filed: 1951-12-05
Abstract: 749,622. Shirts &c. CURRAN, D. J. Dec. 2, 1952 [Dec. 5, 1951], No. 28563/51. Class 141. A reversible shirt &c. has the margins 2, 3, Fig. 1, of the front opening reinforced by doubling the material on itself or by means of separate reinforcing straps, at one side outwardly and at the other side inwardly the two margins having like sets of button holes. The garment is made with its seams, cuffs and neckband neat on both sides. The garment may have a completely divided front or may be of tunic type, in which case the ends of the margins are narrowed, as at 16, 17, Fig. 3, so that either may be disposed on top of the other. Reversible double cuffs each secured to the sleeve end by a seam which takes up a dart 21 in the sleeve end, may be provided, and the wrist openings may have marginal straps overlying one another at the point 28, Fig. 1, of attachment to the sleeve.
Patent GB-422726-A (GB)
Title: Coreless induction furnace
IPC: H05B6/02
Filed: 1933-10-16
Abstract: 422,726. Electric induction furnaces. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Oct. 16, 1933, No. 28641. Convention date, June 30. [Class 39 (iii)] The shield for protecting the furnace frame from the magnetic field is composed of two or more layers of different metallic materials which are in contact or are separated by an air space or spaces. Copper and aluminium or zinc may be used. The overall thickness of the plates is equal to or greater than the depth of penetration of the magnetic field.
Patent GB-467399-A (GB)
Title: Device for the production of centrifugal castings
IPC: B22D13/00
Filed: 1936-10-21
Abstract: 467,399. Casting machines. BREITBART, H. Oct. 21, 1936, No. 28674. [Class 83 (i)] Moulds ; cores.-Bodies of any cross-section and solid or hollow with one or both ends open or closed are made by centrifuging molten material 2 in a container 1 to separate gases and dross, which can then be removed, and then forcing into the container an open bottomed mould 5, having one or more cavities 6 of the desired form. The mould is preheated by radiation from the molten metal while the impurities separate. The lower end of the mould is made a good fit with the sides of the container by means of dried clay, asbestos, &c. 9. The moulds have a vent 8 at the top and may be rotated with the container during insertion. A core 4 may be mounted in the bottom 1a of the container 1, Fig. 2, or on the top plate 10 of the mould 5, Fig. 4. The container may consist of ceramic material when casting heavy metals or of metal when casting light metals and may be provided with an electrical or other heating device. The core may be made of or coated with clay or, in the case of containers closed at both ends, of sand &c. so that it can be removed through holes which are then closed, as by welding.