baber/WOPTO huggingface dataset:
Patent GB-911667-A (GB)
Title: Connections to semiconductor bodies and methods of making such connections
IPC: H01L21/48
Filed: 1959-01-30
Abstract: Superposed layers of gold and silver (or predominantly silver) are deposited on germanium or silicon bodies in the following manner to provide ohmic contacts thereto.  A silicon body comprising zones of different conductivity types so disposed as to make it suitable as a transistor (see Group XXXVI) is masked, enclosed in a vacuum chamber provided with heater filaments loaded with silver and a gold antimony alloy (0.1% by weight antimony) respectively and heated to 500 DEG C.  The gold loaded filament is first energised to evaporate gold on to the wafer through the mask to provide a series of groups of three parallel elongated gold layers.  When the layers are about 200 thick the silver loaded filament is energized and the other switched off as soon as silver begins to deposit.  The amount of silver is limited so that its complete evaporation results in layers 5 m thick.  A further layer of gold is provided by re-energizing the gold loaded filament.  In an alternative method, after deposition of the first gold layer the silver and gold are evaporated simultaneously, the evaporation of the measured amount of silver being so much more rapid that while it lasts the layer is essentially of silver. When the silver is exhausted the gold continues to evaporate to provide the outer layer.  When germanium is used instead of silicon it is maintained at a temperature of only 390-400 DEG  C. during the deposition process.  Specifications 809,642, 809,643, 821,832 and 821,834 are referred to.
Patent GB-434644-A (GB)
Title: Improvements relating to balanced and semi-balanced rudders
IPC: B63H25/38
Filed: 1935-02-02
Abstract: 434,644. Ships' rudders. HIORTH, J. B., Hovik, near Oslo, Norway. Feb. 2, 1935, No. 3437. [Class 114] A balanced or semi-balanced rudder 1 mounted on pintles 3 on the upper part of the rudder post and on a sole piece has a removable abutment 5 arranged on the centre line of the pintles with engaging surfaces 8, 9 between the rudder post and the upper edge of the rudder or its balancing part and is provided with a filling piece 11 formed on or attached to the rudder post which fills the space between the post and the upper edge of the forward part 2 of the rudder, and its forward edge is shaped to correspond with that of the rudder. Alternatively the piece may be provided on the rudder, and in both constructions it extends below the upper sweep of the propeller 12.
Patent GB-1400456-A (GB)
Title: Sealing sttrips
IPC: A63C1/00
Filed: 1972-01-25
Abstract: 1400456 Sealing strip SILENT CHANNEL PRODUCTS Ltd 22 Nov 1972 [25 Jan 1972] 3527/72 Heading E1J An internally reinforced sealing strip, e.g. for a slidable vehicle window 15, has a portion 3 with two parallel sides and a flexible projection 10 with an enlarged end 12 projecting from one side and defining one side of a recess 9 in said side such that the portion 3 may be mounted in a channel member 13, the enlarged end 12 of the projection being deflected into the recess 9 to form an interference fit in the channel. The seal may have a flock coating. For Figure see next column
Patent GB-175270-A (GB)
Title: New or improved method for the working of petrol and like engines with gases of inferior power value
IPC: C10L3/00
Filed: 1922-02-07
Abstract: 175,270. Daimler-Motoren-Ges. Feb. 7,1921, [Convention date]. Plant. - Liquic fuel engines, particularly for vehicles may, without constructional alteration, work with gaseous fuel of low calorific value supplied under pressure. As shown in the Figure, a compressor c is located between a gas generator b and an engine a. A carburettor may be placed in the delivery pipe of the compressor. The engine may use air gas, water gas, or Dowson gas.
Patent GB-128329-A (GB)
Title: An Improved Construction of Laminated Spar for Aircraft.
Inventor: THOMAS GEORGE HOLT
IPC: B64C1/00
Filed: 1918-03-01
Abstract: 128,329. Thomas, G. H., and Hiscocks, S. W. March 1, 1918. Drawings to Specification. Framework.-Laminated spars for aircraft are constructed from comparatively short lengths of wood, the joints in the laminµ being arranged with reference to the bending-moments and stress shears to which the spars are subjected when in use. The spars are spindled out whereever required, in accordance with stress considerations, and different grades of wood may be used in different parts, e.g. light poplar for the central laminµ, and first-grade spruce for the outer laminµ constituting the flanges of the spars.
Patent GB-411971-A (GB)
Title: Improvements in or relating to machine guns
IPC: F41A3/82
Filed: 1933-02-06
Abstract: 411,971. Machine guns. VICKERSARMSTRONG, Ltd., LARSSON, C. A., and HIGSON, P. R., Vickers House, Broadway, Westminster. Feb. 6, 1933, No. 3640. [Class 92 (ii).] Relates to recoiling-barrel guns of the Vickers type in which the crank B is connected to a centrally-arranged compression returnspring D, and in which symmetrically-disposed projections B<2> engage a member E on the gun casing to initiate the angular movement of the crank. According to the invention, the compression spring is arranged at an angle to the axis of the gun with its forward end bearing against a part D<1> pivoted to the crank above the crank axis, and its rear end supported by a curved bearing D<3> on a part D<4> mounted on the rear wall of the gun casing. The part D<4> is preferably in the form of a screw-threaded plug adjustably carried by the handle-block for the purpose of varying the initial compression of the spring. The angular movement of the crank is limited by the engagement of faces B<3> on the crank with stop faces B<4>.
Patent GB-194670-A (GB)
Title: Improvements in or relating to cans or the like
IPC: B65D43/02
Filed: 1923-02-07
Abstract: 194,670. Passaic Metal Ware Co., (Assignees of Gueritey, C.). March 11, 1922, [Convention date]. Cap-stoppers, bayonet-joint.-A can 1 or other container having a flexible open end provided with inclined projections or threads 7 is closed by a lid 3 having a flange 4 provided with inclined indentations 9 to co-operate with the projections 7, and an annular indentation 3<a> is formed in the top of the lid to engage the rolled-up edge 6 of the body during the co-operation of the parts 7, 9 and thus maintain the shape of the open end of the body and an efficient relation between the parts 7, 9. As shown, the edge 6 is rolled inwards, and the projections 7 overlap one another, the indentations 9 entering between superposed projections 7 as the lid is closed by a turning movement. On reverse turning movement of the lid, the lower projections 7 co-operate with the projections 9 to move the lid upwards.
Patent GB-524721-A (GB)
Title: Improvements in and relating to "stressed skin" fuselages or nacelles for aircraft
IPC: B64C1/00
Filed: 1939-02-04
Abstract: 524,721. Aircraft fuselages. AMIOT, F. Feb. 4, 1939, Nos. 3767 and 3768. Convention dates, Feb. 5, 1938 and Jan. 14, 1939. [Class 4] A fuselage or nacelle for aircraft is built up of sections each comprising a stressed skin mounted on a framework of transverse and longitudinal elements, the various sections being united end to end by means of rims secured to the skin and to the longitudinal elements so as to give mechanical and surface continuity. Each section comprises a skin 5 secured to Z-section longitudinal elements 4 and to transverse frames 12, Fig. 8, which are cut to embrace the longitudinal members 4 to which they are secured by brackets 15. Intermediate rings 13, Fig. 9, are secured to the members 4 by brackets 17. The ends of each section have L-members 7, Fig. 3, secured to the skin and to brackets 10 which are riveted to the longitudinal members 4, and adjacent sections are secured together by bolts 8 passing through the radial flanges of the members 7. Fig. 10 shows a modification in which, in addition to end rims 19, the skin of one section overlaps and is riveted to a recessed portion of the skin of the adjacent section. To facilitate assembly longitudinal members may project from one section to engage within an adjacent section.
Patent GB-791890-A (GB)
Title: Improvements in or relating to locking plates for stays for concrete shuttering
IPC: F16B21/14
Filed: 1956-02-07
Abstract: 791,890. Friction grip fastenings. GUSTAFSSON, E. R. Feb. 7, 1956, No. 3769/56. Class 44 [Also in Group X] A locking plate which can be anchored to a round of flat stay comprises a metal plate 1 and a U-shaped member 2 whose legs 3 are secured to the plate thus forming a slot 4 between the plate and U-shaped member; a stay, of round 7 or flat section 8, passes through triangular registering holes 6 in the plate and U-shaped member, and is clamped between the sides 9 or against the side 10 of these holes by a wedge 5 inserted in the slot 4. An embodiment in which the edges 9 are curved to include a more acute angle affording better grip for the round stay is also described, Figs. 4, 5 (not shown).
Patent GB-1376551-A (GB)
Title: Mixed polysulphones and a method for producing the same
IPC: C08G75/00
Filed: 1973-01-25
Abstract: 1376551 Polysulphones CESKOSLOVENSKA AKADEMIE VED 25 Jan 1973 [4 Feb 1972] 3936/73 Headings C3R and C3P Polysulphones are obtained by reacting sulphur dioxide with a mixture of chloroprene and another unsaturated organic compound, by contacting the reactants with a polymerization initiator at - 185‹ C. to 50‹ C. In examples the other unsaturated compounds reacted with chloroprene and sulphur dioxide are styrene, isobutylene, cyclopentene, vinyl acetate, methyl methacrylate, 2,3-dimethylbutene-1, butadiene and a mixture of isobutylene, butene-1, butene-2 and butanes; the polymerization initiators are tert. butyl hydroxymethyl peroxide and tert. butyl hydroperoxide. Uses.-mouldings, panelsand insulationfoams.
Patent GB-539819-A (GB)
Title: Improvements in or relating to slicing machines
IPC: B26D1/50
Filed: 1940-03-02
Abstract: 539,819. Positive clutches. MICRO-WESTCO. Inc. March 2, 1940, No. 3953. Convention date March 6, 1939. [Class 80 (ii)] [Also in Groups I, XXX and XXXVII] In a machine for slicing loaves, conveyers are geared together and are driven from the wrapping machine by a chain shaft 182 and positive clutch, which comprises a housing 183 loose on the shaft 182 and having pivoted thereon a crescent-shaped member 187 which is engaged by the lug 186 on a dog 185 fixed on the shaft 182. The member 187 is held in the driving position shown by a spring 195 acting through lever 190 and link 189. When a solenoid 204 is de-energized a spring-pressed cone 196 slides to the right along the shaft 182 and deflects anti-clockwise an arm 194 which thereupon moves lever 190 to disengage member 187 from lug 186. One revolution of the shaft 182 corresponds to the distance between successive flights of the conveyer, so that the driving connection 186-187 is always established when the flights are in predetermined positions.
Patent GB-1406972-A (GB)
Title: Coil ignition system for an internal combustion engine
IPC: F02P9/00
Filed: 1974-01-29
Abstract: 1406972 Ignition systems DUCELLIER & CIE 29 Jan 1974 [13 Feb 1973] 04022/74 Heading F1B A coil ignition system for an internal combustion engine comprises an electromagnetic contactor 13 having a coil 14 associated with the primary circuit of the ignition coil 4 in such a manner that the contactor is held open by the energized coil 14 until the engine reaches a predetermined speed whereupon the current in this coil becomes insufficient to maintain the contactor open and closing of the contactor occurs to connect a resistance circuit 20 across the primary winding 3 of the ignition coil so that ignition sparks are partially or totally suppressed. As shown the coil 14 is connected in series with the primary winding 3 but it may be in parallel with this winding.
Patent GB-354160-A (GB)
Title: Improvements in motor cycle frames
IPC: B62K19/26
Filed: 1931-02-09
Abstract: 354,160. Motor cycle frames. NEIMAN, A., 19, Erftstrasse, Cologne, Germany. Feb. 9, 1931, No. 4037. Convention date, Feb. 7, 1930. [Classes 79 (iii) and 136 (iii).] The frame members of motor cycles are cut to the required lengths from uniform girdershaped bars, instead of being separately stamped or forged to the required shape. As shown, a duplex frame comprises two rearwardlydiverging upper members 1, two downwardlydiverging front members 2, and two parallel lower members 3, all of channel cross-section, with the channel facing inwards, and with small outwardlyprojecting strengthening-ribs d<1>, d<2>. Connecting- plates 6, 7, riveted to the frame members, are recessed to fit between the ribs d<1>, d<2>. The steering- head 8 is provided with box-shaped extensions whereby it is secured to the frame members 1, 2 by rivets 9, 10, the extensions fitting into the inwardly-directed channels. The gear-supporting bridge consists of cross-members 18 connecting the frame members 3, and a longitudinal member 17 provided with three upturned flanges. Enginesupporting plates 19 bear on the gear-supporting bridge, and are connected to the members 1 by stays 5.
Patent GB-825211-A (GB)
Title: Improvements in or relating to point retracting mechanisms for writing instruments
Inventor: HUTCHINSON HAROLD
IPC: B43K24/08
Filed: 1956-02-09
Abstract: 825,211. Writing instruments. MABIE, TODD & CO. Ltd. Nov. 29, 1956 [Feb. 9, 1956], No. 4042/56. Class 146(3) A retractable writing instrument has a rearwardly biased writing unit 2, a sleeve 4 to receive said writing unit, a cylindrical cam member 6 rotationally mounted on said sleeve and disposed coaxially of the unit and secured against appreciable axial movement relative thereto, and cam followers formed or mounted on the casing for co-operation with cam faces 9, 10 at the opposed ends of the member 6, the cam faces being such as to rotate the cam member on the sleeve on successive actuations of the mechanism to positions wherein the writing unit adopts alternately the retracted and projected positions. The rear end of the writing unit 2 is push-fitted into the sleeve 4, and the rear end of the sleeve projects from the barrel to carry an actuating knob 5. The upper and lower cam faces 9, 10 are arranged as shown in Fig. 3. When the unit 2 is retracted splines 11 formed on the barrel part 26 engage the bottoms of the deep depressions 15 of the upper cam face 9 of the member 6 which is held in this position by a spring 13 urging the sleeve 4 rearwards. On depression of the knob 5 the member 6 is carried forward until projections 12a on a bush 12 which unites the barrel portions 25, 26 engage the inclined -faces of the depressions 16 of the cam face 10, cause the member to rotate and come to rest in the bottoms of the depressions. When pressure on the knob is released, the spring 13 carries the member 6 back until the splines 11 engage the inclined surfaces of the depressions 14, cause the member to rotate, and come to rest in the bottoms of the depressions. The unit 2 is now in projected position. A second actuation of the knob 5 causes the unit 2 to reassume the retracted position. The bush 12 threadedly engages the barrel part 25 and carries splines 27 and beads 28 to co-operate with corresponding slots 29 and recesses 30 in the barrel part 26.
Patent GB-352964-A (GB)
Title: Process for improving iron-titanium alloys
Filed: 1930-02-07
Abstract: Iron-titanium alloys are hardened by quenching or cooling in air from a temperature between 700 DEG  C. and 1350 DEG  C. and then artificially ageing by annealing at a temperature between 320 DEG  C. and 600 DEG  C.  The process may be applied to binary iron-titanium alloys with or without carbon, the titanium content being for example between 3 and 6 per cent; to alloys of iron, from 0,5 to 8 per cent titanium and up to either 40 per cent nickel or 8 per cent manganese with or without carbon; or to these alloys with additions of up to 25 per cent chromium, 15 per cent cobalt, 5 per cent molybdenum, 3 per cent vanadium, 4 per cent silicon, 25 per cent tungsten, or any combination of these elements, the minimum iron content being about 50 per cent.  To obtain maximum hardness the nickel content is preferably greater than the titanium content.  Alloys referred to contain 5,54 per cent titanium, 7,4 per cent nickel and the balance iron; 5,4 per cent titanium, 7,6 per cent nickel, 12,3 or 20,4 per cent chromium and the balance iron; and it is stated that the process may be applied to the stainless steels containing 20 per cent chromium and 7 per cent nickel after addition of titanium and to the titanium steels containing about 36 per cent nickel and 4,5 per cent titanium.  The alloys may be cooled after the first heating by spraying with compressed air.  The Specification as open to inspection under Sect. 91 (3) (a) states that similar effects were produced "with additions of zircon."  This subject-matter does not appear in the Specification as accepted.
Patent GB-285903-A (GB)
Title: Improvements in internal-combustion hammers or like percussive tools
IPC: B25D9/10
Filed: 1928-02-10
Abstract: 285,903. Gas Tool Patents Corporation, (Assignees of Saunders, S. R.). Feb. 25, 1927, [Convention date]. Percussive tools.- In a two-stroke cycle internal-combustion percussive tool the striker 6 is carried by a skirted piston 8 in which is formed a cam groove 37 co-operating with a movable contactoperating member 36 to close the timing circuit by the action of the cam nose 38 shortly before the piston reaches its uppermost position under the action of the return spring 10. The timing contacts are protected from the combustion gases by the piston rings and the member 36 serves to prevent the piston from rotating. The anvil block 13 is supported by a stout spring 45, which cushions an idle blow but does not spoil normal working. Fuel is contained in a tank 19 and is led to an air inlet valve 20 by a conduit (not shown), the charge being compressed in the space 23 and transferred to the combustion chamber through a port 22a. The exhaust from the port 26 may be used to clear the drill point as shown. When at rest the piston is held in its uppermost position, so that the ignition circuit is necessarily broken. To start, the piston is depressed by a hand-operated rod 40. The tool is in three main parts, a cylinder head 2, cylinder 1 and base plate 3, all held together by through bolts 4.
Patent GB-570797-A (GB)
Title: A combined chair and truck
IPC: B62B3/02
Filed: 1944-03-09
Abstract: 570,797. Convertible perambulators. PARLETT, R. S.- March 9, 1944, No. 4348. [Class 108 (i)] [Also in Group XIV] A combined child's chair and truck and rocking chair or sleigh comprises a detachable seat 8 resting between curved side frames 1 which form the rockers. To convert it into a truck, wheels 5 on brackets 3 swing down, the brackets being secured by bolts 6 with wing nut heads. A pivoted tray 11 is provided which may come down in front of the child when needed. The tray is mounted on arms 12, extending behind the back 13 of the chair, and are connected at the rear end by a hand rail 14 to help the child to walk. The vehicle may be pushed or pulled from either end by a push rod 15 with a cross handle 16, the push rod being fitted into one or other of the brackets 17 mounted in the middle at each end. The chair can be detached from the framework bv disengaging bolts 9 and lifting it out.
Patent GB-563371-A (GB)
Title: Improvements in and relating to ships' side lights
IPC: B63B19/00
Filed: 1943-03-17
Abstract: 563,371. Cabin lights. THOMPSON, J. S., and THOMPSON, W. G. March 17, 1943, No. 4357. [Class 113 (i)] The frame a of a ship's sidelight is provided with a mild steel ring b which can be attached by welding to the ship's plating. The ring may be made separately, split, assembled on the frame and its ends then welded together ; or the ring may be shrunk or screwed on to the frame.
Patent GB-1467594-A (GB)
Title: Hydraulic braking equipment
IPC: B60T13/12
Filed: 1975-01-31
Abstract: 1467594 Tractor-trailer braking systems ROBERT BOSCH GmbH 31 Jan 1975 [31 Jan 1974] 4400/75 Heading F2F Hydraulic braking equipment for a tractortrailer arrangement comprises means in the form of a pump 19 for directing pressure fluid to a trailer brake cylinder through a brake valve 22 under the influence of the force used for braking the tractor 10, an hydraulic coupling 52 for two sections of the trailer brake line mounted respectively on the trailer 11 and tractor 10, an accumulator 76 connected through a non-return valve to that section mounted on the trailer and an electro-magnetically operated valve connected in that section and controlling communication between the coupling 52 and the brake cylinder and between the latter and the accumulator, the electromagnet of the valve being connected to an electrical circuit of the traction vehicle containing at least one switch so that interruption of the electrical circuit causes application of the trailer brakes. As shown the circuit includes a switch 84 coupled to the vehicle ignition switch, a differential pressure switch 33 with switching pistons 37, 38 responsive to pressures in the brake line 32 and brake part 28 supplying trailer brake pressure and a switch 90 which operates when the maximum permissible travel of the brake pedal is exceeded. The differential pressure switch is provided with a time delay member 49 to prevent the device interrupting the first circuit 83 and releasing the safety braking of the trailer before the trailer brake pressure can build up during normal braking.
Patent GB-415333-A (GB)
Title: Improvements in focusing lens mounting
IPC: G02B7/04
Filed: 1934-02-12
Abstract: 415,333. Lens mounts. FOLMER GRAFLEX CORPORATION, 154, Clarissa Street, Rochester, New York, U.S.A. Feb. 12, 1934, No. 4564. Convention date, May 18, 1933. [Class 97 (i).] A barrel member 10 carrying lenses is provided with a threaded portion 22 engaging with a nut 23, the latter having a ring 26 secured to it which can move freely over the smooth portion of the barrel but is not of sufficient diameter to allow it to be drawn over the threaded portion. Movement of the nut in the opposite direction is checked by shoulder 12 on the barrel. Movable flanges on the body of the camera engage with a groove 28 on the nut to support the lens unit and yet allow rotation of the nut. Projecting fingers on the camera front engage with grooves 33 in a ring 32 on the barrel to maintain the latter against rotation so that rotation of the nut will cause an axial focusing movement of the barrel. An iris diaphragm 16 operated by a knurled ring 17 is provided. The screw threads 22 are formed on a bushing secured by a set screw 19 and nut 20.
Patent GB-288776-A (GB)
Title: Improvements in or relating to the protection of electrical apparatus
IPC: H02H3/32
Filed: 1927-02-18
Abstract: 288,776. General Electric Co., Ltd., and Wilson, W. Feb. 18, 1927. Cut-out arrangements.-An isolated electric system such as bus-bars 2, 3 and feeders 4, 5 and 6, 7 is protected against earth faults by a relay comprising differentially-acting coils 56, 59 connected between the busbars 2, 3 and earth 8. Assuming an earth fault develops upon the feeder 5, the potential across coil 57 increases while that across coil 59 decreases, whereupon relay contacts 27, 29 close thus causing a heavy current to flow through feeder 5 and earth 8. As there is not a corresponding increase of current in associated feeder 4, differential relay 10 operates to energize coil 45 of circuit-breaker 11 and thereby isolate the feeders 4, 5. Closure of contacts 27, 29 also short circuits coil 57, and therefore this relay returns to its mid-position and the sound feeders 6, 7 are left in operation. The relay 57, 59 might connect the bus-bar to earth through a resistance or it might directly cause operation of the circuit-breakers. The arrangement can be applied to a three-phase A.C. system by using instead of the coils 57, 59. three coils acting on a steel disc at equallyspaced peripheral points, the disc being supported near its centre on three pins.