baber/WOPTO huggingface dataset:
Patent GB-593766-A (GB)
Title: Improvements relating to pyrophoric lighters
IPC: F23Q2/42
Filed: 1945-06-11
Abstract: 593,766. Pocket igniters. LOWEN. THAL, B. June 11, 1945, No. 14760. [Class 75 (iii)] In a pyrophoric lighter, the filling opening 4 of the fuel reservoir 1 is closed by two movable members which remain permanently attached to the lighter both in its open and closed positions. The opening 4 may be closed on its inside by a plug 8, Fig. 3, held by a leaf spring 15, and on the outside by a slide 10 provided with two indentations into one or other of which a spring- pressed ball 12 snaps to hold the slide in its open or closed position. The slide may be replaced by a pivoted cover as in Fig. 4, where the cover 16 may be opened with snap action and a plate 6 moved into its open position by a spring 9 to remove the plug 8 and allow access to the filling opening 4. When the cover is closed a spring 11 presses on the plate 6 to hold the plug securely in the opening 4. A slide may be provided instead of the cover 16, if desired.
Patent GB-736778-A (GB)
Title: Improvements in shoe drum brakes
IPC: F16D51/54
Filed: 1951-06-22
Abstract: 736,778. Shoe-drum brakes. BRISSON, L. C. June 22, 1951 [June 30, 1950], No. 14946/51. Class 103 (1). A shoe-drum brake comprises an actuating cylinder 2 containing a double ended piston assembly 3, 4, pivoted shoes 7, 11, 18, a bell-crank lever 20-21 pivoted at 22, and a bell-crank lever 34 fixed to a pin 32 on the lever end 21 and operating a cam 37. The lever 20-21 has clevis ends, the part 20 of which carries slide blocks 26, 27 which engage a slot 30 in a lug 31 on the shoe 18, and the part 21 being embraced by a forked end-piece 5 pivoted to the pin 32 and arranged to abut against the cylinder 2 while being free to move away from it. In operation, movement of the lever 34 by means of a hand brake cable 36 moves either the lever 21 to lower the pin 32 by the action of the cam 37 against the piston 4, or displaces the piston 4 which pushes back the end 3, Wrapping action of the shoes against the drum in the direction of movement f1 applies the part 5 against the cylinder 2 with a greater force than that applied by the cam 37 which will in consequence be displaced. In reverse movement the ratio of forces is reversed and the part 5 moves away from the cylinder 2. For hydraulic operation the expander member through the action of the head 4 would itself act directly upon the cam 37 and the lever 21. In the direction f the instantaneous centre of revolution and the pivotal point of the shoe 18 are thrown off to infinity, while the instantaneous centres of revolution of the two adjacent shoes and their pivotal connection are aligned in a straight line. Specification 681,657 is referred to.
Patent GB-801279-A (GB)
Title: Improvements in or relating to the manufacture of ceramic materials
Inventor: HERBST HENRY
IPC: C04B33/13
Filed: 1956-05-14
Abstract: A ceramic body (see Group V) has its surface metallized by spraying or brushing a lacquer of 80 per cent molybdenum, 20 per cent manganese, both as powders, in a binder of ethyl lactate and pyroxylin, heating to evaporate the binder and firing at 1350 DEG C. for 30 minutes.ALSO:A gas-tight ceramic is obtained by pressing a mixture, in per cent by weight, of pure alumina 80 to 99,5; glass 0,5 to 20; and firing, during or after pressing, to the temperature at which all the glass melts.  A binder, e.g., starch, can be added when firing follows pressing.  1400 DEG  to 1650 DEG C. is the specified firing range.  The ceramic may have its surface metallized, an 80:20 molybdenum; manganese being described.  The glass specified contains, in per cent by weight, silica 48,3; potassia 8,5; calcia 3,0; baria 31,5; magnesia 2,5; boric oxide 5,6 and arsenious oxide 0,6.
Patent GB-1422170-A (GB)
Title: Pneumatic electric transit systems
IPC: B61B13/12
Filed: 1973-03-28
Abstract: 1422170 Railway systems; propelling vehicles W K CROWDER 28 March 1973 [5 April 1972] 14976/73 Headings B7L and B7H A transit system comprises vehicles 16 each supported on rollers 30 on a track 28 the vehicles being driven by traction wheels 52 which run in a helical path round the inside surface of a guide tube 25 the wheels being carried on a three armed yoke 63 which is rotated by an electric motor 54 and the motor being carried on an arm 36 connected to the vehicle and passing through a slit seal 42 in the tube 25, and the pitch of the helical path of the wheels 52 being variable to control the speed of vehicle between a zero speed position in which the wheels 52 rotate about axes parallel to the guide tube 25 and a desired maximum speed position. Each vehicle 16 is supported by rods 34 on ball supports 32 on the arms 36 and the electric motor 54 (Fig. 8) drives a shaft 56 which has disposed therein an axially slidable rod 58, the yoke 63 being connected to a flange 72 on the rod 58. The wheels 52 are each mounted on the yoke 63 in a pivotally mounted U-shaped bracket 60. Axial movement of the rod 58 causes pivotal movements of the brackets 60 to vary the angular relationship of the wheel 52 axes relative to the guide tube 25, and such movement of the rod 58 is effected by pivotal movement of a control arm 46 also passing through the slit seal 42, the arm 46 being moved under control of cams as 50 along the vehicle track to move the wheels 52 to stop the vehicle 16 when desired. This action is resisted by a spring 66 which normally maintains the wheels 52 in a position in which the vehicle speed is 40 m.p.h. The speed of the vehicles 16 is also controlled by air pressure in the tube 25 to the extent that if the air pressure in front of a diaphragm 74 (Fig. 12) movable in the tube 25 with the vehicle decreases, i.e. when there is no other vehicle in close preceding proximity, the diaphragm 74 moves under the action of a spring 80 to pivot the wheels 52 by means of a link 78 to a position in which the vehicle speed is increased to 55 m.p.h. When the vehicle is stationary a latch 90 carried by the link 78 is adapted to engage door open indexing serrations 92 at a terminal so that the vehicle is positively held with the wheel 52 axes parallel to the tube 25 when the vehicle doors are open. Various traffic systems are described in the Specification in which trains of vehicles 16 run on closed non-intersecting loops, each loop having a series of stations spaced therealong and with the vehicles destined for each station being stopped sequentially threat and being disposed in order and taken from the rear of the train with the remainder passing to their distinations without stopping the frequency and number of vehicles stopping at each station being controlled by a computer in response to destination cards purchased by the users and inserted at the departing terminal.
Patent GB-581097-A (GB)
Title: Improvements relating to electric lamp holders
IPC: H01R33/08
Filed: 1944-08-08
Abstract: 581,097. Lamp-holders. CROSSLAND, A. G. Aug. 8, 1944, Nos. 15054/44 and 1304/45. [Class 38 (i)] A holder for electric lamps having contact pins at one or each end comprises a hollow body a of insulating material, having contacts b within, and across it a rotary member e in which together with an adjacent part of the body member a are slots f, i for the insertion of the lamp contact pins g, after which insertion, rotation of the member e by manipulation of the lamp causes interengagement of the pins g and contacts b. The contacts b of resilient metal are fixed to the body by bolts c and have terminals d and recesses b<1>. Location ofthe rotating member e in the " off " and " on " positions of the lamp is achieved by the co-operation with the recesses b<1> of the ends of one arm of a cruciform part e<2> of the member e and the lamp pins g respectively. A modification is described in which a shroud on the rotary member cooperates with a shroud on the body member to secure safety in the " on position, in which separate slots are provided for each lamp pin, and in which the location in position is not achieved lay the cam which moves the blades but by the co-operation of a spring blade on the , body member with recesses in the rotary member, Figs. 6 to 10 (not shown).
Patent GB-329830-A (GB)
Title: An improved electric furnace
IPC: A61C13/20
Filed: 1929-05-15
Abstract: 329,830. Campbell, H. G. May 15, 1929. Resistance furnaces.- A hinged door at one end of a furnace, particularly for use in dental work, is provided with a heating element which is connected in series in all positions of the door, with heating elements embedded in the furnace walls. The heating elements are embedded in the walls of a muffle 1 arranged in a casing formed by a tray 4, end plates 5, 6, and an inverted U-shaped member 9. Heat insulating material 8 is arranged between the muffle and the casing. A renewable refractory slab 13 fitted with a heating element 15 is dovetailed into the door 12. The two heating elements 2, 3, in the muffle and the element are connected to termnials 16, 17 on the furnace, and the terminals 1 are connected to the supply through rheostat 18 and a fuse 19, Fig. 11. The connections between the door and muffle elements are enclosed by segmental shields 28, 29. The door is operated by a handle carrying a weight. 23 and secured to the hinge-pin 10 of the door. A boss 24 secured to the pin is formed at 25 so as to co-operate, with a blade spring 26 to retain the door in the open position. A refractory tray 27 is arranged in front of the door. External metallic parts of the furnace are earthed.
Patent GB-501836-A (GB)
Title: Improvements in or relating to processes for engraving metals
IPC: B41C1/02
Filed: 1937-05-31
Abstract: 501,836. Printing- surfaces. SOC. ANON. DE PUBLICATIONS PERIODIQUES IMPRIMERIEE DESECSSES. May 31, 1937, No. 15142. Void. Convention date, May 30, 1936. Application for addition to 446,793. [Class 100 (ii)] An intaglio printing-block, plate or cylinder is provided " both with elements which reproduce a line engraving, with or without texture. and with elements which reproduce a heliogravure with a texture" and the line engraved portions are then deepened by one of the processes described in the parent Specification.
Patent GB-738528-A (GB)
Title: Air blast electric circuit breaker
IPC: H01H33/56
Filed: 1953-06-01
Abstract: 738,528. Air-blast circuit-breakers. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. June 1, 1953 [May 31, 1952], No. 15156/53. Class 38 (5). A plurality of circuit-breakers similar to that of Specification 713,798 are connected in series and are arranged in pairs in separate containers mounted on separate insulators, the containers being in communication with each other and compressed air being supplied through at least one delivery pipe to the containers. As shown in Fig. 1, three containers 7 ... 9 are mounted on insulators 1 ... 3, air being supplied to the container 8 via a pipe E and thence to containers 7, 9 via pipes 16, 17 which also serve to connect the circuit-breakers 10... 15 in series. Condensers 20 ... 25 are connected in parallel with the contact gaps to divide the voltage evenly. The contact-operating mechanisms 30 ... 35 are supplied with air via pipes 36 ... 38. Fig. 3 shows an enlarged view of mechanism 33. The moving contact 47, which is carried by a piston 49, is separated from the fixed contact 40 by supplying compressed air via pipe 37 to a membrane 64 which changes over a valve 70 to vent the underside of a piston 56. At the same time, air is supplied to the underside of a piston 54 so that a cylinder 50 carried thereby is moved upwards to open an outlet opening 53 so that the housing 45 is evacuated. The contact 47 is thus moved down by the pressure around it in the container 8 until a collar 73 meets the upper end of cylinder 50. The arc formed is extinguished by air flowing between the contacts. Air is also supplied over a throttle valve 66 to the upper side of piston 54 to reclose the opening 53, the contact 47 following, to insert an isolating gap, until piston 49 abuts a sealing ring 61. To reclose, the pipe 37 is evacuated so that valve disc 70 moves to the right and air is supplied to the space below piston 56 which is moved upwards to reclose the contacts by means of a rod 57.
Patent GB-748357-A (GB)
Title: Improvements in the manufacture of wire and the like
Inventor: HANN KENNETH GRAEME
IPC: C21D8/06
Filed: 1953-06-01
Abstract: 748,357. Annealing. SOMERSET WIRE CO., Ltd. May 18, 1954 [June 1, 1953; Aug. 10, 1953], Nos. 15235/53 and 22055/53. Class 72. [Also in Group XXII] A method of straightening cold drawn wire, rod or tube of high tensile steel, that is medium or high carbon steel or suitable alloy steel, comprises heating successive lengths of the wire or the like to a tempering temperature e.g. 220-500‹C. for carbon steels and up to 600‹C. for cold workable alloy steels, and subjecting the heated wire at this temperature to a tensile force to give it a permanent elongation and straighten it. Cold drawn wire 12 wound on a braked drum 24, Fig. 3, is unwound therefrom and stretched by a winding onto a capstan 11, being heated between the drum and capstan by electric current from a generator 14 passing through bushes 16 along the wire 12 to the drum 24 and by a lesser current passing through the brushes 16 along the wire 12 to the capstan 11. The wire is cooled by water in a tube 20 through which the wire passes. In the arrangement of Fig. 1 the wire is drawn by the capstan 11 through a die 10, connected to the generator 14. For high carbon steel the temperature of the wire reached is between 250‹-350‹C., preferably between 270‹-310‹C., e.g. 277‹-300‹C. The steel wire may include À8 per cent C., À7 per cent Mn, À2 per cent Si and less than À05 per cent each of S and P. If the wire is galvanised the brushes 16 may be dispensed with and the current allowed to flow directly between the die 10 and the capstan 11, Fig. 4 (not shown). Instead of electric resistance heating, induction heating may be employed or the wire may be heated by passing through a lead or salt bath.
Patent GB-126018-A (GB)
Title: Improvements in the Firing Mechanism of Automatic Guns.
Inventor: HARTLEY ARTHUR CLIFFORD
IPC: F41A19/05
Filed: 1916-10-26
Abstract: 126,018. Hartley, A. C. Oct. 26, 1916. Fire between aircraft propeller blades, controlling and synchronizing.-Relates to guns, the firing of which is synchronized with some moving part which crosses the line of fire as, for example, the propeller blades on aircraft, and consists in providing the firing-pin with external operating mechanism and a stop controlled by the synchronizing means for operating the mechanism. The invention is shown applied to a Lewis gun having a strikerpost d carrying a firing-pin a which extends rearwards through the casing b, and is connected through a spring f with an arm e extending from a bar h also connected with the strikerpost. The pin a and rod h, together with a lever g, l pivoting on the rod hand abutting against the pin a, recoil and return together, and the pin a is pressed inwards to fire the gun by the contact of the arm l with a plunger m only when the latter is advanced by the action of the synchronizing mechanism.
Patent GB-803938-A (GB)
Title: Saw blade
IPC: B27B33/02
Filed: 1957-05-14
Abstract: 803,938. Sawing. DEBOURDEAU, P. May 14, 1957 [May 18, 1956], No. 15305/57. Class 145. A reciprocating saw blade is of hollow construction to form an interior channel 12 for the evacuation of sawdust. The blade may be made from a flat strip 1, Fig. 1, of metal which is perforated at 2 so that, on folding it to a triangular shape, Fig. 4, triangular projections 3 form side-cutting teeth and portions 5 between the projections 3 form planing teeth ; the teeth are bevelled on both sides in order to cut in both directions and may be given a curved crosssection in order to provide rake angles. In the modification shown in Fig. 8, a metal strip 13 is welded to a tube 14 having cut-outs formed to produce side-cutting teeth 15 and planing teeth 16. When the blade is driven by an engine, the exhaust may be used to blow the sawdust from the channel 12.
Patent GB-935784-A (GB)
Title: Improvements in or relating to the extrusion of thermoplastic tubes
Inventor: ADAMS JOHN FRANCIS EDWARD
IPC: B29C48/09
Filed: 1961-04-27
Abstract: 935,784. Extruding thermoplastic tubing for blow moulding bottles. METAL BOX CO. Ltd. Feb. 8, 1962 [April 27, 1961], No. 15312/61. Class 87(2). In a method of producing an extruded synthetic thermoplastic tube the material is extruded through a die 1 comprising an annular cover 4, a co-axial core 5 and means for rotating the core and cover relative to one another so that the weight per unit length of the tube is controlled by varying an induced unidirectional circumferential shearing action which determines the degree of contraction of the tube as it leaves the die. The external diameter of the tube may be varied by altering the speed at which the core 5 is rotated by a pinion 8 meshing with a toothed rack 9 reciprocated by a pneumatic piston and cylinder device 11, 10. When the extruded tube is used for the blow moulding of a bottle the core 5 is not rotated during the extrusion of the length 13, Fig. 2, which expands on leaving the orifice, but is rotated whilst the length 15 is extruded so that, due to the shearing action, the latter contracts to form the neck portion of the bottle.
Patent GB-375957-A (GB)
Title: Improvements in or relating to the manufacture of leather
IPC: C14B1/56
Filed: 1931-05-26
Abstract: 375,957. Boots &c. JOHNSON, J. W., Chebula, Rocksavage Road, and NOWELL, J. W., Green Lands, Moughland Lane, both in Runcorn, Cheshire. May 26, 1931, No. 15322. Drawings to Specification. [Class 17 (ii).] Sole leather is embossed in the piece to present a uniformly broken or small patterned surface over its entire area so that when soles &c. are cut therefrom the necessity of scouring or other finishing is avoided.
Patent GB-388727-A (GB)
Title: Improvements in wired wireless systems
IPC: H04B5/00
Filed: 1931-05-26
Abstract: 388,727. Wired-wireless systems. EISENBAHNRADIO-GES. H. BUBNALITTITZ & CO., 4, Brucknerstrasse, Vienna. May 26, 1931, No. 15395. Convention date, May 28, 1930. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 40 (v).] A system for use in limited spaces comprises a transmitting line and counterpoise, receivers being located in the high-frequency field between them. In the example described, a transmitter energized from a portable battery is arranged in one of the carriages of a railway train and a transmitting line extends into all the carriages, the framework of which affords the counterpoise and prevents external radiation.
Patent GB-1414439-A (GB)
Title: Plate valve
IPC: F04B39/10
Filed: 1974-04-08
Abstract: 1414439 Valves HOERBIGER VENTILWERKE AG 8 April 1974 [11 April 1973] 15422/74 Heading F2V The opening movement of a closure member 3 of a ring plate valve for a compressor is damped by contact with a domed spring stopplate 8 rigidly fixed at its centre and having a paraboloidal form. Loading is by means of a spring plate 7 having tongues 9 in contact with the closure member. In an alternative embodiment the spring plate is omitted and loading is provided by tongues (10), Fig. 2 (not shown), integral with the stop-plate. The closure member is guided at its centre by a ring 4 but alternatively it may be guided by flexible members integral with it and providing the necessary loading, the spring plate being omitted. The stop-plate may have an axial height of about 40-60% of the valve stroke.
Patent GB-496731-A (GB)
Title: Improvements in or relating to electric cables employing pulverulent mineral insulation
IPC: H01B7/16
Filed: 1937-06-03
Abstract: 496,731. Cable end sleeves; cable joints. DEAN, W. J., and CLOTHIER, M., [Representatives of CLOTHIER, H. W.], CLOTHIER, G. D., and PYROTENAX, Ltd. June 3, 1937, No. 15467. [Classes 36 and 38 (i)] A method of sealing the end of a cable of the kind comprising one or more conductors insulated from a surrounding metal sheath by compressed mineral insulating powder, such as magnesia or steatite, comprises applying endwise-pressure to the cable insulation so as radially to expand the sheath and to form an end recess into which non-hygroscopic, insulating and sealing material, or a bush of solid insulating material may be inserted. The bush may be provided with a central tubular conductor so that the recessed and expanded ends of two cables may be connected together and sealed by the bush. Figs. 1 and 2 show apparatus for recessing and expanding a cable end. The conductor A<2> is bared at the cable end and the sheath A is gripped near its end between a pair of clamping plates B, B<1> which are grooved to accommodate the cable, the grooves being flared at their ends adjacent the cable end. Bolts C extending through the clamping plates B, B carry a head D which may be urged towards the end of the sheath by nuts D<2>. The head D has an aperture D<1> through which the conductor A<2> passes and is formed with a recess D<3> in which fits an apertured conical die E. To recess and expand the cable end, the nuts D<2> are tightened so that the die E is forced into the cable insulation A<1>, as shown in Fig. 2. If the die is of insulating- material it may remain in the cable end and serve as an insulating bush, otherwise the die is removed and a separate bush fitted in the recess. The end of the sheath is then swaged on to the bush. In effecting a joint between two cable ends, the ends are recessed and expanded as described with reference to Figs. 1 and 2 and a jointing element comprising a tubular conductor J, Fig. 5, separated from a sheath J<2> by an insulating layer J<1> having conical ends and preferably consisting of the same material as that used in the cables, is inserted between the cable ends. The ends of the sheath J<2> fit over the enlarged ends of the cable sheaths A. Clamps B are then attached to each sheath A and are drawn together by bolts C so that the conical surfaces of the cable and joint insulation are pressed firmly together. The ends of the sheath J<1> are then swaged to the cable sheaths. In a modified process the insulating layer J<2> is of solid material and is used to expand the cable ends, a separate expanding operation being unnecessary. In the case of a multicore cable, the expansion of the sheath is effected in a number of stages by a succession of dies having successively larger spacing between the holes through which the cores pass and additional insulation is introduced into the cable end after each die is withdrawn.
Patent GB-947592-A (GB)
Title: Nuclear reactor duct closure device
Inventor: FLEM LEON LE
IPC: G21C13/067
Filed: 1960-05-03
Abstract: 947,592. Reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 3,1960 [May 5, 1959], No. 15546/60. Heading G6C. To permit the insertion of samples to be irradiated into the interior of a reactor, access to ducts in the reactor reflector is obtained through cast-iron blocks which are rotatable relative to each other so as to align internal ducts with those in the reflector. As shown, the sample racks 4 are placed in the vertical ducts 1, 2 in the reflector 3 for irradiation purposes. The base 7, which secures 1,2, also supports the sealed sheath 9 which passes through the shield 11. The castiron cylindrical blocks 12,13 are rotatable about the vertical axis xx<SP>1</SP> above 7 and contain the ducts 16a, 17a, 16b, 17b which may be aligned with 1,2 by rotation of 12,13 about bearings 14,15. The racks 4 are cooled by CO 2  gas which passes in through 24 and out through 25. After an initial rotation of 13 a finger and recess mechanism between 13, and 12 engages to cause 13 and 12 to rotate together until a similar mechanism between 12 and 7 engage's when all the ducts are aligned.