baber/WOPTO huggingface dataset:
Patent GB-1408532-A (GB)
Title: Self-tapping screw
IPC: F16B35/04
Filed: 1973-01-23
Abstract: 1408532 Self-tapping screws ITT INDUSTRIES Inc 23 Jan 1973 [25 Jan 1972] 3456/73 Heading B3N A self-tapping screw has a metal body or stem 10 and a head 20 made wholly of plastics material. The head has annular shoulders 22, 24 and a crown portion 28 which is at least as deep as a seat 32. End surface 18 of the body or stem is flat or concave.
Patent GB-1156540-A (GB)
Title: Aluminum Clad Electric Conductor Wire and Method of making such Wire
Inventor: ADLER ORVILLE ERNST
IPC: B21C23/24
Filed: 1967-01-24
Abstract: 1,156,540. Making composite wire. NATIONAL STANDARD CO. 24 Jan., 1967, No. 3461/67. Heading B3A. [Also in Division E1] A method of making aluminium-clad ferrous wire comprises coating a ferrous wire with either copper or nickel and extruding the aluminium on to the wire at a pressure and temperature sufficient to effect a recrystallization of the copper or nickel, all the metals remaining in the solid state throughout and the aluminium remaining unalloyed with any of the other metals. The wire is copper or nickel plated in any conventional manner and is pulled through the extruding die. An aluminium slug or billet is heated to 1000‹ F. and is extruded concentrically on to the plated wire under a pressure of at least 50,000 lb/sq. inch. A satisfactory bond may be obtained on a tarnished copper or nickel surface at an extrusion pressure of 70,000 1b/sq. inch.
Patent GB-1023763-A (GB)
Title: Improvements in firing control apparatus
Inventor: RUSHTON JOHN STANSFIELD
IPC: H03K17/28
Filed: 1964-01-27
Abstract: 1,023,763. Control systems for firing explosive fuzes. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. Jan. 27, 1965 [Jan. 27, 1964], No. 3476/64. Heading H2H. [Also in Division H3] A system for successively firing a plurality of explosive fuzes comprises a variable frequency pulse generator feeding pulses into a counter having five bi-stable sections, the counter being so arranged as to reset after counting 24 and arranged to control 24 AND gates each of which gates controls a separate transistor amplifier and hence a pair of fuzes in the form of rocket motor ignitors. An interlock switch is provided so that the amplifiers are only operative when the switch is closed. A timing circuit introducing a six second delay is incorporated into the system and comprises a capacitor charged at a constant current controlled by a transistor. When the capacitor acquires a given potential a further pair of transistors are cut off causing energization of a relay to initiate any desired function associated with the rocket motor ignitor firing mechanism.
Patent GB-881328-A (GB)
Title: Apparatus for producing moving light effects
IPC: A63J5/00
Filed: 1958-02-03
Abstract: 881,328. Theatrical appliances; optical toys. HOPPE, J. P. Feb. 3, 1958, No. 3481/58. Addition to 749,434. Classes 132(1), and 132(3) In an apparatus of the type claimed in the parent Specification, a slit 80 is formed in a flexible reflector near which means are attached to control the flexing of areas of the reflector adjacent said slit. As shown in Fig. 1, the slit 80 is provided in a coloured area 79. A push rod 81, Fig. 2, is connected by a flexible loop 83 with the sides of slit 80 and a U-shaped bar 84 is connected to the ends of slit 80, rod 81 and bar 84 being respectively pushed and pulled by finger rings 82, 85. Additional transverse slots 80a may be provided. The flexible reflector 86; Fig. 5, with a slit 87 and a separable portion 88 is provided with a pivoted part 90 which can be clipped on to the edge of reflector 86 to hold the parts together.
Patent GB-1214296-A (GB)
Title: Improvements in or relating to vehicle brakes
Inventor: SADLER FRANCIS ANTONY
IPC: B60T11/10
Filed: 1967-01-24
Abstract: 1,214,296. Vehicle brake lights. GIRLING Ltd. 19 Jan., 1968 [24 Jan., 1967], No. 3513/67. Heading G4Q. [Also in Division F2] A dual hydraulic brake system (see Division F2) has a separate stop light for each half of the system, each stop-light circuit containing one winding of a balanced-armature relay. If one hydraulic circuit should fail, only one brakepressure switch will operate, so that the relay is no longer balanced, and closure of its contacts lights a warning lamp. For testing, a threeposition switch shorts out each relay winding in turn, when depression of the brake pedal should cause the relay and warning lamp to operate.
Patent GB-609116-A (GB)
Title: Improvements in and relating to electro-magnetically operated switches
IPC: H01H29/16
Filed: 1947-02-27
Abstract: 609,116. Control systems for space-discharge lamps. McMILLAN, W. F. F. Feb. 27, 1947, No. 3543/46. [Class 38 (iv)] [Also in Group XXXVII] The preheating circuit of a thermionic discharge tube comprises a switch operated by the leakage flux of the choke coil 1 and having switch contacts 10, 11 co-operating with an armature 11 and contained in an evacuated or gas-filled non-magnetic tube 6 bearing a lateral projection 6a wedging into a space between the choke winding 4 and its core so that the switch may be readily replaced. In a modification, the armature co-operates with two mercury contacts.
Patent GB-872767-A (GB)
Title: Gear design
IPC: F16H1/10
Filed: 1960-02-01
Abstract: 872,767. Toothed gearing. BORG-WARNER CORPORATION. Feb. 1, 1960 [Feb. 4, 1959], No. 3550/60. Class 80 (1). In an external or internal gear each tooth has a pair of mirror edges defining the contour thereof and disposed on opposite sides of its centre line, and the addendum portion of each edge comprises two portions, a first portion being defined by a straight line and a second portion being defined by part of an epicycloid, in the case of an external gear, or part of a hypocycloid, in the case of an internal gear, having a starting point spaced a greater distance from the centre line on the pitch line circle than the dedendum line. In Fig. 7, each tooth 66 of an internal gear 65 has an epicycloid dedendum 70, which meets the pitch line circle PLI at a point 72, and an addendum portion 71 comprising a hypocycloid 76, having a starting point 78, and a straight line portion 75 joining the point 72 with a point 77 on the hypocycloid. Each tooth 80 of an external gear 79, Fig. 8, has a hypocycloid dedendum 84, which meets the pitch line circle PLE at a point 86, and an addendum portion 85 comprising an epicycloid 90, having a starting point 92, and a straight line portion 89 joining the point 92 with a point 91 on the epicycloid. Formulµ for the chordal tooth spaces are given. Corresponding formulµ for conventional cycloidal internal and external gears are also stated. The invention is applied to the gears of an internalexternal gear type pump.
Patent GB-1371314-A (GB)
Title: Hand towelling dispenser
IPC: A47K10/28
Filed: 1973-01-24
Abstract: 1371314 Towel dispensers NEUCO APPARATEBAU A G 24 Jan 1973 [28 Jan 1972 and 19 June 1972] 3620/73 Heading A4G A dispenser for a web of hand towelling comprises a housing receiving a supply 4, 4 'or 4'of towelling, a dispensing roller, 3, 3'or 3" over which towelling can be withdrawn from the supply, a wind-up roller 15, 15' or 15" for drawing in and winding up used towelling, a timing mechanism including a timing stop member 8, 8'or 8", a suction cup 9, 9', 9"carried on said member, said stop member being movable from a rest position shown dotted, against a bias into an operative position by the withdrawal of towelling, in which latter position, the suction cup adheres for a pre-set time against a counter element 10, 10' or 10", a limiting device arranged for being held in an effective position by said stop member when in its operative position, said limiting device in its effective position blocking said dispensing roller against rotation for said pre-set time after a predetermined length of towelling has been dispensed, an electric motor 17, 17'or 17" for driving said wind-up roller, and a switch S2 for switching the motor into operation by movement of the stop member back into its rest position. In Fig.1, an abutment 8b on member 8 engages a cog 12 on a toothed wheel 11 so as to block roller 3, wheel 11 being coupled to roller 3 via a one-way clutch, a toothed sprocket 13 and a toothed wheel 14. The motor 17 drives the wind-up roller 15 through a worm 18, pinion 19, and toothed wheels 21, 20. Wheel 21 only engages pinion 19 when stop member 8 is in its rest position. In the operative position, the windup roller can rotate in the unwind direction. This rotation is limited by a restricting roller 25 which has unlimited rotation in the wind-up direction, but limited rotation in the unwind direction. This limitation can be achieved by e.g. a groove of spiral or screw form and a counter element which can leave the groove at one end only (see Figs. 2 and 3, not shown). Alternative limitation arrangements are disclosed (see Figs. 4-6 and Fig.9 not shown). Further switches S1 and S3 in the motor circuit are opened by the tension in the towelling after dispensing and by the passage of the end of the towelling. When the roll 16 of used towelling reaches a predetermined size, a lever 26 carrying roller 25 can close a switch S to operate a signal. Then a presser roller 6 mounted on stop member 8 and over which the towelling passes can be held in the upper position and a switch (S4), Fig.7 (not shown), can be closed to operate the motor to wind up the remaining towelling. In Fig.8, wind-up roller 15' has limited rotation in the un-wind direction and wind-up roller 15' and toothed wheel 21' are coupled to the dispensing roller 3', via toothed wheels 51, 53, 14' and a chain 52, in the operative position of stop member 8'and to motor 17' in the rest position. In Fig.10, the coupling between the wind-up roller 15" and the dispensing roller 3" includes a shifting clutch 86, 87, 93 operated by the stop member 8". (For Figures see next page)
Patent GB-1398866-A (GB)
Title: Integrated circuits
IPC: H03K3/012
Filed: 1972-05-19
Abstract: 1398866 Integrated circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 May 1972 [22 May 1971] 3621/75 Divided out of 1398862 Heading HIK The subject-matter of this Specification is entirely contained in that of Specification 1,398,862, but the claims are concerned with an integrated circuit including a multi-layer current injector structure for providing bias current to at least one zone of a circuit element, the injector structure comprising at least three successive layers mutually separated by rectifying junctions and including a first, injecting layer and an adjoining second, intermediate layer, which two layers have connections to enable the junction therebetween to be forward biased so that charge carriers are injected from the former to the latter and charge carriers are collected by the zone to be biased, wherein an inset insulating layer is provided between two surface zones to be biased in the adjoining zone which is common to the injector structures for both zones to be biased. A variety of modifications are disclosed which do not lie within the terms of the present invention, but form the subject-matter of Specifications 1,398,862, 1,398,863, 1,398,864, 1,398,865, 1,398,867 and 1,398,868.
Patent GB-838843-A (GB)
Title: Process for preparing catalyst
IPC: B01J23/84
Filed: 1959-02-03
Abstract: Catalysts are prepared by contacting an aqueous solution of an amine-, ammonium- or alkali metalsalt of an acid of Mo, W or V with a protonated cation-exchange material, separating the aqueous solution from the latter and impregnating a porous carrier with the solution, a water-soluble salt of iron, nickel and/or cobalt being added to the cation-exchanged solution prior to impregnation. Preferably ammonium paramolybdate is the first-mentioned salt. Specified carriers are: activated alumina, silica-alumina, activated clays, diatomaceous earth, magnesia, silica-magnesia and silica gel. The catalysts may be used to hydrodesulphurize petroleum fractions such as furnace oil, whole or reduced crude, or reforming stock, as well as lubricating oils.  In the example, a furnace oil (213-338 DEG C.) was hydrodesulphurized under the following reaction conditions: 349 DEG  C., 42.7 kg./sq. cm. gauge, L.H.S.V. 4.02, S.C.M. H2/Bbl. 107, throughput 48.3.
Patent GB-324533-A (GB)
Title: Improvements relating to electric accumulators
IPC: H01M2/12
Filed: 1929-02-05
Abstract: 324,533. Chloride Electrical Storage Co., Ltd., and Dean, H. Feb. 5, 1929. Gas exits.-A gas exit consists of a chamber e containing one or more bobbin-like members each comprising a hollow stem a and flanges k, l. The stem a is open at the top and closed a.t the bottom and is provided with a side opening c. The lower flange of each bobbin is provided with an opening b. The chamber e has a restricted lower end i and a vent tube h at its upper end.
Patent GB-689183-A (GB)
Title: Improvements in or relating to earth working implements
IPC: A01B35/26
Filed: 1950-02-15
Abstract: A copper alloy, for coating a plough share, harrow tooth or other earth-working implement part, contains 2 per cent of nickel 0.8 of silicon and 0.2 of iron.
Patent GB-705511-A (GB)
Title: Improvements relating to safety devices for aircraft pilots
Inventor: LOBELLE MARCEL JULES ODILON
IPC: B64D25/00
Filed: 1951-02-16
Abstract: 705,511. Ejector seats for aircraft. M. L. AVIATION CO., Ltd., and LOBELLE, M. J. O. Feb. 8. 1952 [Feb. 16, 1951], No. 3868/51. Addition to 590,253. Class 4 A modification of the safety device for use by pilots of aircraft as claimed in the parent Specification including a gun for set ejection comprises three or more cylinders, telescopically arranged and mounted to slide in an upward direction, in which the outer cylinder is fixed to the aircraft and the inner cylinder to the seat and the remaining cylinder or cylinders are retained by the fixed outer cylinder when fully extended under the action of the explosive charge. The cylinder arrangement comprises an outer cylinder 1, formed with a sleeve 2, to which a base cap 3 is attached for connection to the aircraft structure; an inner cylinder 4 formed at its base with a sleeve 7 and at its upper end with a connection to a trunnion block 5 on the back of the seat, and an intermediate cylinder 6. The sleeve 2 is formed with radial grooves to accommodate balls 10 held in contact with recesses in the sleeve 7 by a retaining ring 14 held in the locking position by a spring 31. The end face of a sleeve 8 attached to the cylinder 6 is placed in communication with the explosive gases by the provision of ports 13 in the sleeve 7 and the outer face of the cylinder is formed with longitudinally directed serrations 16 which cut into a light alloy shock absorber ring 17 within the top of the outer cylinder when the cylinders are fully extended under the action of the explosive charge. The breech 18 is pivotally mounted at 28 to side plates 19 on the trunnion block 5, a roller 20 on the breech engaging an arcuate slot 21 in one side plate. The breech is swung out of engagement with an exhaust 35 and into line with the cylinders by means of a cam 22 which is pivoted at 23 and moved by a rod 34 to engage the roller 20. A pair of links 25, 27 actuate the cartridge firing mechanism when the breech 18 is aligned with the cylinders and expanding gases depress the ring 14 to free the balls 10 and release the inner cylinder which leaves the aircraft with the seat when the intermediate and outer cylinders are in their fully extended position. Specification 645,323 is referred to and the Provisional Specification refers to Specification 704,332.
Patent GB-253031-A (GB)
Title: Improvements in and relating to wheels for vehicles
IPC: B21K1/28
Filed: 1926-02-10
Abstract: 253,031. Michel, G. Aug. 5, 1925, [Convention date]. Disc wheels are formed of magnesium or a magnesium alloy, the hub being preferably formed integral with the wheel body. The rim. which may be segmental, is separately attached.
Patent GB-1210562-A (GB)
Title: Improvements relating to the treatment of sewage and like industrial waste
Inventor: NICOL JAMES BLACKBURN
IPC: C02F1/00
Filed: 1968-01-25
Abstract: 1,210,562. Sewage treatment. DRYSDALE & CO. Ltd. 21 Jan., 1969 [25 Jan., 1968], No. 3904/68. Heading C1C. A sewage treatment plant has a sewage receiving compartment 1 and two treatment compartments 2A, 2B having air introducing means 3A, 3B at their bases. Means 4A, 4B, which may be airlifts, are provided for the transfer of liquid from the sewage receiving compartment 1 to each treatment compartment 2A, 2B and similar means 5, 6 are provided for the transfer of liquid between the treatment compartments. The inlet of each of the liquid transfer means is at a lower level than that of the outlet. Means 9A, 9B, which may be weirs, are provided near the upper portion of the treatment compartments 2A, 2B for the discharge of effluent. Liquid transfer control means 7, which may incorporate a programmed clock, carry out a cycle of four steps: A first Fig. 2 (not shown), in which the liquid transfer means 4A and 5 are operative; a second, Fig. 3 (not shown), in which means 6 are operative; a third, Fig. 4 (not shown), in which means 4B and 6 are operative and settling takes place in compartment 2A; and a fourth, Fig. 5 (not shown), in which means 5 are operative. Means 8, which may also incorporate a programmed clock, or means to sense the levels of liquid in the compartments 2A, 2B, are operatively interlinked with the liquid transfer control means 7 and carry out a two-step cycle of operation of the air introducing means 3A, 3B: a first in which means 3A are operative during at least the latter part of the interval of the first step of operation of the liquid transfer control means 7 and during at least the initial portion of that of the second step of operation of the means 7; and a second step in which means 3B are operative during at least the latter portion of the interval of operation of the third step of the means 7 and during at least the initial portion of that of the fourth step of the means 7.
Patent GB-435685-A (GB)
Title: An improved wick for liquid fuels
IPC: F21V37/00
Filed: 1935-02-06
Abstract: 435,685. Wicks. SCHATTANECK, E., 4, Vereinsttiege, and HASCHEK, L., 29, Scheibenbergstrasse, both in Vienna. Feb. 6, 1935, No. 3907. Convention date, Feb. 6, 1934. [Class 75 (i)] Wicks for use in pyrophoric lighters, lamps, stoves, &c. burning liquid fuels are made from porous metal, metal alloys, or metal compounds either by cutting from a block of the material or by sintering a mass of powdered material of the dimensions required. Wicks for burning light fuels may have smaller pores than those for burning heavy fuels. The projecting end of the wick may be recessed to increase the vaporizing surface and to diminish the heat conducted to the fuel container. It may also be sealed or cemented in position if not required to be adjusted. The wicks may be provided with lower parts of textile materials.
Patent GB-146923-A (GB)
Title: Improvements in bearings
IPC: F16C17/06
Filed: 1920-02-09
Abstract: 146,923. Kingsbury, A. July 10, 1919, [Convention date]. Spring and other yielding supports.-In a thrust or other bearing having one of the bearing members supported by springs or other elastic means, vibrations which may be set up in the yielding member are damped by the use of dashpots. Fig. 2 shows a thrust bearing having a number of shoes 6 supported on springs 11 so as to be free to tilt and immersed in oil. Extensions 13 of the shoes fit into cylinders 12 containing the springs and control the flow of oil into and out of the cylinders, vibrations being thus damped. As shown in Fig. 5, each shoe is supported by two or more springs and rests on the stems 27 of pistons 26 against which the springs bear. The stems 27 may be fixed to the shoe so that the dash-pots act in both directions of movement. Fig. 7 shows a modification in which the shoes 36 are connected loosely by flexible plates 38 which confine the oil below the shoes so as to damp vibrations. Cooling-fluid may be circulated through passages 8, Fig. 2, in the
Patent GB-739052-A (GB)
Title: A device for tempering copper or copper-alloy wires, strips or the like produced in extrusion presses
IPC: B21B45/02
Filed: 1952-02-14
Abstract: 739,052. Annealing copper. LONGMAN, J. (Schloemann Akt.-Ges.). Feb. 14, 1952, No. 3969/52. Class 72. [Also in Group XXII] A device for treating extruded copper or copper alloys in strip or wire form, has three guiding parts, a first guiding part containing a hollow guide of angular cross-section having one angle facing downwards leading from the press to a chamber containing an inert gas, a second guiding part containing a hollow guide leading from the inert gas chamber to a chamber containing water under pressure, and a third guiding part containing a hollow guide through which cooling water flows in the direction of travel of the wire and into the inlet of which the second guiding part projects. As shown, copper wire 12 passes through a guide 1 of square cross-section into a chamber 3 containing an inert gas, e.g. nitrogen, and into a second guiding part 5. The discharge end of the second guide 5 is tapered and enters a truncated cone-shaped end of a third guiding part 9 contained in a chamber 6. Water fed into the chamber 6 under pressure flows through the annular space between the parts 5 and 9 and in the same direction as the movement of the wire. Any water passing through the part 5 against the movement of the wire is removed through holes 11 into the chamber 3 and removed therefrom by a valve. The angular shape of the guides 1 prevents twisting of the wire or strip. Specification 691,875, [Group XXII], is referred to.
Patent GB-470457-A (GB)
Title: Improvements in or relating to portable piano-players
IPC: G10F3/00
Filed: 1936-02-10
Abstract: 470,457. Piano-players. BARNETT, H., and COOKLIN, I. Feb. 10, 1936, No. 3973. [Class 88 (i)] In a portable player generally as described in Specification 470,455, a manually-operated cut-out valve 81 is provided between the tracker-bar treble and bass accenting holes 76, 77 and the accenting pilot valves 53, 54 whereby automatic accenting can be prevented when hand accenting-control of the valves 53, 54 (by finger-levers 74, 75 opening ducts 79, 79a) is to be exercised. Actuation of the valves 53, 54 opens (by connections 70, 71) valves 67, 68 permitting full suction applied at 55a to reach the actions connected at 59a, the normal passage being through the governor valve 61. The actions are cut off from suction during re-winding by a valve 56 operated by the opening of a duct 85 by the rocking of the frame which effects the gear change. Specification 470,456 also is referred to.
Patent GB-348075-A (GB)
Title: An improved heat-exchanger intended particularly for heating water
IPC: F28D21/00
Filed: 1930-02-06
Abstract: 348,075. Plate heat exchangers. MELLOR, P. H., Old House, Seend, Wiltshire. Feb. 6, 1930, No. 4001. [Classes 64 (i) and 64 (iii).] Apparatus in which water or other liquid to be heated or cooled is circulated through sinuous passages formed by partitions B in a chamber A, has spikes E on the outside of the chamber projecting into the heating or cooling medium and arranged opposite to and forming continuations of the partitions. The spikes may be joined together by webs. A number of chambers mav be secured together with their partitions so arranged end to end as to form a continuous sinuous passage for the water or other liquid.
Patent GB-724674-A (GB)
Title: Improvements in or relating to cement mixtures
IPC: C04B28/02
Filed: 1953-02-12
Abstract: A composition for addition to Portland or like hydraulic cements comprises chloride of lime with one or more additional substances having a decomposing action on the chloride of lime. Chloride of lime is defined, and 2.5 per cent by weight is preferably added.  The additional substances specified are ferric, manganous, ammonium and cobalt chlorides; ferrous, manganous and nickel sulphates; ferric oxide, manganic peroxide and hydrogen silico fluoride, preferably two gram equivalents thereof per gram mol of the chloride of lime.