baber/WOPTO huggingface dataset:
Patent GB-439507-A (GB)
Title: Improved method of and apparatus for holding glass plate during tempering
IPC: C03B35/20
Filed: 1934-06-08
Abstract: 439,507. Tempering glass. PILKING- TON BROS., Ltd., Tower Building, Water Street, Liverpool, and FORBES, L. J. B., The Crossways, View Road, Rainhill, St. Helens, Lancashire. June 8, 1934, No. 17049. [Class 56] [See also Group XXX] A device for holding a glass plate during tempering comprises two pivoted members which are pressed against two opposite side edges of the plate so that they enter a predetermined distance into the glass as it softens, the pressure of the points on the glass then being released. The device comprises two carriages 3, one of which is shown in Fig. 1, both carriages being provided with screws 6 whereby they can be secured in any desired position on an horizontal bar 2. A lever, pivoted to each carriage at 9, has an horizontal arm 8 which carries a weight 11, and a depending arm 7 provided with a point or knife edge 10. The arm 8 is free to move between an upper stop 12 and a lower stop 13. In use, the two carriages are clamped in position on the bar 7 with the points 10 gripping the opposite side edges of the glass plate 1 while the arms 8 are against the upper stops 12. The weights 11 maintain sufficient pressure between the points 10 and the plate 1 to support it. As the glass softens during tempering, the weights 11 force the points into the glass until the arms 8 rest on the stops 13, thus releasing the pressure of the points on the glass. In another construction, shown in Fig. 3, a bell-crank lever 15, pivoted to the carriage 3, has one arm 14 furnished with a point 10 while the other arm has a forkedrecess which embraces a stop 19. When the lever is in the position shown, the lever arm 14 points upwards towards the glass sheet 1, and the weight of the sheet, gripped between the points 10 on two carriages, causes the points to press strongly against the edges. As the glass softens, the points 10 enter the glass until the side 18 of the forked recess meets the stop 19 when further movement of the lever is thus prevented. In another construction, shown in Fig. 4, the glass sheet 1 is supported in a frame composed of a bottom bar 20 to which side bars 21 are pivoted. The side members are suspended by hooks 27 from a bar 2, and they are also provided with pins 25 which enter slots 29 in a cross-bar 28, thus permitting limited movement of the members 21 to and from one another. Rods 30, having points or knife edges 10, are adjustably secured to the side members 21, and in operation, these points 10 are arranged to press against the edges of the sheet 1 when the pins 25 are at the outer ends of the slots 29. The hooks 27 are attached to the bar 2 in such a position that the weight of the frame presses the points 10 against the glass. When the glass softens, the points 10 enter until the pins 25 reach the inner ends of the slots 29 and thus release the pressure of the points on the glass.
Patent GB-1160058-A (GB)
Title: Method for Establishing During Manufacture Regions having Different Carrier Lifetimes in a Semiconductor Body
Inventor: LESK ISRAEL ARNOLD
IPC: H01L21/8222
Filed: 1968-04-09
Abstract: 1,160,058. Semi-conductor devices. MOTOROLA Inc. 9 April, 1968 [26 April, 1967], No. 17068/68. Heading H1K. A method of establishing local variations of carrier lifetime in a semi-conductor body 10 during manufacture comprises forming a metal impurity gettering region 14 in a part of the body adjacent that region of the body where the carrier lifetime is required to be long, and then diffusing a metal impurity into the body to shorten the carrier lifetimes in the body other than in that region influenced by the gettering region. The metal impurity diffused in the silicon body to create the gettering region is phosphorus, arsenic, antimony, boron, gallium or aluminium, the diffusion being carried out from a vapour stage through a window 13 in a silicon oxide coating 12. Both the doped silicon region 14 and the oxide layer 12 in combination at those parts where they have a common interface provide the gettering effect, although the doped silicon region 14 alone can provide the effect. The metal impurity diffused in the body to shorten the carrier lifetime is gold, copper, iron or nickel, the diffusion being carried out from a metal surface film deposited on the semi-conductor body.
Patent GB-199599-A (GB)
Title: Improvements in or relating to vacuum brake apparatus for railway trains
IPC: B60T13/46
Filed: 1922-06-21
Abstract: 199,599. Luard, E. S. June 21, 1922. Fluid-pressure.-The release of the brakes in vacuum-brake apparatus of usual construction is accelerated by the combination therewith of means, operated by pressure of air, adapted to connect the bottom of the brake-cylinder of each vehicle automatically to a release reservoir when the driver's valve is moved to the release position and exhaustion begins in the train-pipe. The means employed are so arranged that the release reservoir is normally maintained at the normal running train-pipe vacuum, and destruction or reduction of the vacuum in the release reservoir when the brakes are applied is prevented. In the form shown, the train-pipe 2, Fig. 1, is connected through the pipe 9, valve casing 4, and pipes 8, 10 with the release reservoir 3 and brake-cylinder 1 respectively. In the valve casing 4, Fig. 2, is situated a piston member 11, carrying a valve 12 which is adapted to seat on a seating 13 to close the passage to the release reservoir 3. The member 11 is provided with a plurality of air-passages 16 controlled by a non-return valve 17, and the bore of the casing 4 is provided with longitudinal grooves 23. Additional air passages 24, Figs. 2 and 4, by-passing the piston, may be provided. When air is admitted to the train-pipe to apply the brakes, the valve 12 is forced on its seat 13, thus closing the passage to the release reservoir, and air will pass through the passages 16, spigot 7 and pipe 10 into the brake-cylinder. When the driver's valve is moved to the 'release' position, and exhaustion begins in the train-pipe, the piston 11 will be urged to the right, the valve 12 will be unseated and the brake-cylinder will be placed in communication with the release reservoir through the spigot 5 and pipe 8, so that release of the brakes is accelerated. Studs 34 may be provided to limit the travel of the piston 11, and the flexible pipe 10 may be replaced by a rigid metal pipe, in which case the spigot 6 is screw-threaded.
Patent GB-171838-A (GB)
Abstract: 171,838. Still, W. J. Sept. 20, 1920. Valves. - In a twostroke engine having terminal air-inlet and main exhaust ports 1, 2 respectively, auxiliary exhaust ports 5 are located above the level of the air-inlet ports and controlled by a cam-actuated piston valve 7. The ports 5 are closed by the valve before the ports 1 are overrun by the piston during its compression strode.
Patent GB-347933-A (GB)
Title: Production of ketones from secondary alcohols
IPC: C07C45/00
Filed: 1930-06-04
Abstract: The catalytic conversion of secondary alcohols to ketones in presence of steam which forms the subject of the parent Specification is applied to the production of camphor from isoborneol and of acetophenone from methyl phenyl carbinol.
Patent GB-441253-A (GB)
Title: Improvements in or relating to the curing of articles of rubber
Filed: 1935-06-14
Abstract: Rubber articles are covered before vulcanization with a coating of an organic material which shrinks during drying and tightly surrounds the article during vulcanization, but can subsequently be removed before the article is used.  Suitable organic materials are solutions of cellulose derivatives from which the solvent may be removed, or from which cellulose may be precipitated.  These may be applied as liquids to the rubber article, or may be formed into tapes, films, tubes or the like which are moistened, e.g. with glycerine containing water to render them pliable before applying them to the article. These coatings also form a protective covering for the vulcanized articles while stored before use.
Patent GB-1526642-A (GB)
Title: Current distribution circuit arrangement for realizing a plurality of currents having a specific accurately defined ratio relative to each other
IPC: H03M1/00
Filed: 1977-04-26
Abstract: 1526642 Transistor current sources; digital to analogue conversion PHILIPS GLOEILAMPENFABRIEKEN NV 26 April 1977 [29 April 1976] 17318/77 Addition to 1479535 Headings H3T and H3H The arrangement of Parent Specification for producing n accurately identical currents from n approximately identical currents by switching them to each output in turn is modified to provide currents in accurately defined ratios other than unity. Nominally equal currents I, to I q , Fig. 2, are switched to outputs U 1 , U 2  by differential switches T 11  T 21 , T 12  T 22  . . . T 1q  T 2q  under the control of a cyclic shift register S 1 . The switching is such that if a ratio of r and (q - r) is required for the output currents I u , and I u2 , the r of currents I 1 -I q  are connected to U, at any time and during the cycle of shift registers S 1 , every one of currents I 1 -I q  are connected to U, r times and to U 2  (q-r) times. Currents in ratios which add up to q or a factor thereof may be obtained by loading a suitable sequence of digits into shift register S,. Other ratios may be obtained by means of a further shift register S 2  which disables one or more of transistors T s1 -T sq  at those times when the corresponding current I 1 -I q  would be switched under the control of selected ones of the digits circulating through shift registers S 1 . More outputs may be provided by further columns of transistors each controlled by a further shift register, Fig. 3 (not shown). Three arrangements according to the invention may be connected in cascade, Fig. 4, so that the output current at 5 may be selected in decades, U 32  supplying the hundreds, U 22  the tens and U 12  the units. Negative feedback by amplifiers A 1  A 2  A 3  ensures that I r =I u11 ; I e1  = I u21 ; I e2  = I u31 . An alternative arrangement for decade selection is described with reference to Fig. 5 (not shown).
Patent GB-587628-A (GB)
Title: Improvements in, or relating to, cooking vessels
IPC: A47J27/08
Filed: 1944-09-12
Abstract: 587,628. Cooking-vessels. MILLER, F. J. Sept. 12, 1944, No. 17386. [Class 66] [Also in Group XVIII] A steam-pressure cooking-vessel 1 with a resiliently retained lid 2 (see Group XVIII) is provided with a removable perforated tray 32 with a flange 33 around its lower edge to prevent foodstuff in the tray from being immersed in water. The handles of the vessel may be secured between the upper ends of arms 20 forming parts of sheet metal brackets 16 in which engage the ends of the yoke 14 by which the lid 2 is held in position.
Patent GB-1245343-A (GB)
Title: Improvements in or relating to conduit for electrical wiring installations
Inventor: GOODIER GEOFFREY THOMAS
IPC: H02G3/06
Filed: 1969-04-03
Abstract: 1,245,343. Plastics conduit. VOLEX ELECTRICAL PRODUCTS Ltd. 3 April, 1970 [3 April, 1969], No. 17432/69. Heading F2P. [Also in Division H2] A flat-sided oval-section plastics conduit, e.g. of P.V.C., comprises an earthing strip of metal foil M, e.g., of aluminium, adhered or bonded thereto along the length of the conduit on its flat outside surface A. The metal foil is provided with a wire-tail P at an end for earthing purposes. The conduit is for use in wiring installations concealed in a wall or the like wherein a nail inadvertently driven into the wall to contact live conductors (not shown) in the conduit is earthed by the metal foil M which is on the flat side of the conduit nearer the wall surface. The metal foil may be bonded to the conduit when the latter is extruded. The wire tail may be secured to a bolt N passing through an aperture in an end of the foil which may be folded over the wall of the tubing. An end of the conduit may be chamfered (Fig. 5, not shown) to facilitate the entry thereof with the bolt N in a oval aperture in a junction-box. The conduit may have an end enlarged for snugpivotal engagement by an oval or round crosssection tubing; it may be bent edgewise or flatwise for installation.
Patent GB-353619-A (GB)
Title: Improvements in or relating to caps for self-lubricating wheels and axles
IPC: B61F17/00
Filed: 1930-06-06
Abstract: 353,619. Axle-caps. FINLAY, R. P., Lincombe, Temyson Avenue, Llanwern, near Newport, and FINLAY CONVEYOR CO., Ltd., Transporter Bridge, Newport, Monmouthshire. June 6, 1930, No. 17507. [Class 12 (iii).] In an axle-cap M for a wheel hub formed with an oil hole H normally closed by a spring- pressed valve E, the spring F is arranged between the valve and a pin G diametrically mounted in the cap. Recesses I, J allow free passage of oil to the hub, while parts K, L are adapted to take the end thrust of the axle.
Patent GB-1221826-A (GB)
Title: Device for adjusting a direct current, particularly the control current of a transductor for welding current sources
IPC: B23K9/10
Filed: 1968-04-11
Abstract: 1,221,826. Control circuits for arc-welding systems. MESSER GRIESHEIM G.m.b.H. 11 April, 1968 [15 April, 1967], No. 17547/68. Heading H2H. Device for controlling current supplied to the control winding of a transductor in a welding circuit includes a pulse-controlled thyristor disposed in the D.C. circuit. In the arrangement shown, a pulse generator 16 is driven from a source 10 through either one of two adjustable potentiometers 11, 12, and a delay circuit 14, 15. Pulses from the generator 16 control the thyristor 18 connected in series with the winding 19. A relay 21, connected across the winding, is arranged to disconnect the source 10 when a weld has been completed. The pulse generator may include a transistor, a unijunction transistor, and an output transformer, Fig. 3 (not shown). In an alternative embodiment, Fig. 2 (not shown), pulses for the thyristor are derived from a full-wave rectified supply by way of a Zener diode and a unijunction transistor, the length of the pulses being controlled by a potentiometer. In operation, the delay circuit 14, 15 causes the firing angle of the thyristor 18 to be progressively decreased after the circuit is energized, and progressively increased when welding is terminated in order to prevent the formation of end craters in an arc-welding process by gradually reducing the welding current to a low value. The sequence may be controlled by a predetermined programme which varies the resistance in the timing circuit.
Patent GB-579663-A (GB)
Title: Improvements in the manufacture of insulated electric cables and wires
IPC: H01B13/08
Filed: 1943-10-25
Abstract: 579,663. Electric cables. DIXON, N., ROBINSON, R. S., and GLOVER & CO., Ltd., W. T. Oct. 25,1943, No. 17583. [Class 36] Adjacent layers of synthetic thermoplastic insulation, such as a polyvinyl compound, in sheet form, are coalesced by a thin coating of plasticiser which is substantially inactive at normal temperature but softens and unites the layers when heated without the use of pressure. The plasticiser may be liquid, e.g., benzyl abietate, dehydrated coal tar or coumarone resin, or a fine powder, e.g., acetanilide. The plasticiser may be applied to the exterior surface of a layer in position or to the interior of a layer whilst being applied. The method may be applied to the attachment of a thermoplastic identifying strip, as disclosed in Specification 563,441.
Patent GB-520219-A (GB)
Title: Improvements in or relating to bottles and like receptacles
IPC: B65D23/06
Filed: 1938-07-12
Abstract: 520,219. Bottles &c. STOOP, L. F. July 12, 1938, No. 17607/39. [Class 125 (i) ] A construction to prevent drip from bottles and like receptacles comprises either an extension of the neck or an insertion therefore made of glass or moulded material. The device is formed on the inside with a shallow outwardly flared surface 1 terminating at an upper edge 2 and with an outer surface 3 outwardly and downwardly inclined at an acute angle and a lower surface 4 again inclined at an acute angle and meeting the top outer surface of the bottle neck. This arrangement of surfaces with a sharp edge 5 between the surfaces 3, 4 and with the surface 4 frosted or otherwise treated to alter its physical characteristic has been found a remedy against drip whilst the shallow and solid construction of the neck or insertion allows the device to withstand strain in capping and cleaning.
Patent GB-153937-A (GB)
Title: Improvements in draught preventers for doors
IPC: E06B7/20
Filed: 1919-07-15
Abstract: 153,937. Holmes, D. July 15, 1919. Draught excluders.-In a draught-excluder for doors of the kind described in Specification 23338/14, the operating levers b, b<1>, are pivoted to the excluding strip c at the inner ends and on the opposite side of the centre to that at which the fixed pivots d are placed. Greater movement of the strip c is thereby obtained. The levers may be actuated as described in Specification 23338/14 or by a bell-crank lever r on the hinged side and a roller on the frame engaging the protruding end m of a lever on the opening side.
Patent GB-1157866-A (GB)
Title: Vertical Continuous Casting Installation for Casting Metals
IPC: B22D11/08
Filed: 1967-04-18
Abstract: 1,157,866. Continuous casting-machines. SOCIETE DES FORGES ET ATELIERS DU CREUSOT, and SOCIETE INDUSTRIELLE DELATTRE-LEVIVIER. 18 April, 1967 [18 July, 1966], No. 17676/67. Heading B3F. In a continuous casting installation for producing cast strands of different cross-sections and using a universal starter bar comprising a head 7 suitable for the cross-section of the strand to be cast and a body 6, the extraction cage 2 includes fixed rollers 16, adjustable rollers 17 and the bottom roller 19 on the inside of the curve through which the strand 1 is passed is controlled by an hydraulic jack 20 having an adjustable stop. The stop is adjusted so that when the thin section of the starter bar body 6 has passed through the extraction cage the roller 19 is moved outwards on to its stop to allow the head 7 of the starter bar and the strand 1 to pass through the cage 2, and the stop takes the reaction of an hydraulic jack controlled roller 3 that curves the strand 1 to direct it to a radial guide 4 and straightening cage 5. The roller 3 also acts to separate the starter bar from the strand 1 by initially positioning the starter bar between the roller 3 and a guide 30 when the roller 3 is in the position indicated at 3<SP>1</SP> and retracting the ram 29 of the hydraulic jack 28 at the appropriate time when the strand 1 is supported by a flat stop 27. The starter bar is raised and lowered in a carriage 10 within a fixed basket 8 by a cable 12 attached to a drum 11 of a winch. The operation of the installation may be under automatic and remote control and may include a television camera.
Patent GB-1016191-A (GB)
Title: Improvements in and relating to softening, plasticizing and stretching leather
IPC: C14B1/40
Filed: 1963-05-06
Abstract: In continuously softening, plasticizing and stretching leather, a sheet of leather 15, Fig. 1, is carried, from a table 13 to a table 14, between the upper run of an endless, elastic conveyer 2 and the lower run of a similar conveyer 3 and subjected to action on both surfaces, by projections 7 secured to slats 5 and 6 oscillated, e.g. at a frequency between 5 and 60 oscillations per second, towards and away from each other by coupled mechanisms (each including a cam, a cam follower and a return spring) actuated by a motor 9, through a belt 11 and pulley wheel 10, so that portions of the elastic belts with the leather sheet sandwiched between them are forced, by the projections 7 on one slat, into gaps between projections 7 on the other slat, when the slats approach and interengage each other.  The endless belts carry the leather sheet through the apparatus, e.g. at a speed between 5 and 60 cm. per second, when the slats are moved apart and the belts are substantially disengaged from the projections 7. In a modification, Fig. 6, each slat comprises a plurality of independently oscillated portions 27, 28 and 29 each connected, by an adjustable tappet 34, to a piston 32 which is reciprocated, in a cylinder 33, by a rod 30 connected to a <PICT:1016191/C6-C7/1> <PICT:1016191/C6-C7/2> rotating crank shaft 37 coupled, by a sprocket 38 and chain 39, to mechanism reciprocating portions of a similarly divided upper slat (not shown).
Patent GB-1385236-A (GB)
Title: Magnetic printing system
IPC: G06K15/14
Filed: 1972-04-18
Abstract: 1385236 Control of printers DATA INTERFACE Inc 18 April 1972 [30 April 1971] 17859/72 Heading G4H [Also in Divisions B6 and H4] Printer control circuitry includes provision for the printer to be used for 12-line mosaic alphanumeric or for facsimile printing. Data supplied to the printer includes a CHAR/FAX code determining the form of printing in operation, to operate a data switch 112 controlling either a parallel to serial converter 118 if facsimile printing is required or a character generator 120 if alphanumeric printing is required. The CHAR/  FAX code also determines the length of line feed. The character generator 120 comprises a read only memory (210, Fig. 9, not shown) containing data for each character to be printed, a storage buffer (204) identifying a character to be printed, and a clock (212) operating through a latching gate (214) and dividers (216) to identify the columns of a character to be printed. The system may be linked to a television receiver.
Patent GB-767222-A (GB)
Title: Improvements in and connected with electromagnetic contactors
IPC: H01H50/88
Filed: 1954-06-18
Abstract: 767,222. Electromagnetic switches. CRABTREE & CO., Ltd., J. A., and WINTLE, T. D. G. May 13, 1955 [June 18, 1954], No. 17896/54. Class 38(5) Mounted in the cover 1 of a three-pole contactor 2 as disclosed in Specification 633,393 is a pneumatic time-delay mechanism as disclosed in Specification 681,851 [Group XXXII] this mechanism being actuated by a projection 10 of a horizontally-slidable armature carrier 5 when the armature 4 is attracted to the magnet 3 to close bridging contacts 6, the mechanism actuating a micro switch 19. The projection 10 operates a spring-biased lever 11 to rotate a spindle 16 retarded by the pneumatic device 14, the cranked end of the spindle actuating the switch 19 through an arm 17 and a blade 18. When the contactor opens the switch 19 immediately resets. The time delay is adjustable by a knob 15.