baber/WOPTO huggingface dataset:
Patent GB-958935-A (GB)
Title: New or improved cylinder head for an air-cooled internal combustion engine
IPC: F02F1/34
Filed: 1961-12-15
Abstract: 958,935. Cylinder heads and valve gear. DAIMLER-BENZ A.G. Dec. 15, 1961 [Dec. 20, 1960], No. 45052/61. Heading FIB. A cylinder head for an overhead valve air cooled engine comprises a head part 3, containing valve seats, valve guides 7, an injector nozzle 27 upstream of the valves and cooling ribs 14 in the space between the guides 7, and a separate valve chest 4 containing the bearing means 20 for the valve rockers 22. The ribs 14, Fig. 5, are slightly S-shaped and run in a cavity between the inlet and outlet passages 10, 11, the air flow to and from which is guided by further ribs 15, 16. The tops of the ribs 14 are accessible upon removal of the valve chest 4, the ends of the cavity being bridged across by bridge pieces 35, 36, Fig. 6. The rocker box cover 30 is secured by bolts 31, Fig. 7 screwing into the pillars 20. The ribs 15 also direct cooling air on to the fuel injector 27, Fig. 5.
Patent GB-1516098-A (GB)
Title: Ignition control means for a gas-fired appliance
IPC: F23N5/20
Filed: 1975-11-21
Abstract: 1516098 Burner ignition control PARKINSON COWAN APPLIANCES Ltd 21 Nov 1975 [19 Oct 1974] 45346/74 Heading F4T Ignition control means for a gas-fired apliance having an electrically actuated igniter for a pilot flame or main burner bypass flame comprises a clock-controlled switch and a thermostat switch arranged in series, and a shunt circuit arranged to short-circuit the clock-controlled switch for a predetermined short period as the thermostat switch is closed. Thus even if the clock switch is open ignition will be provided for a short period so that any leakage resulting from a fault in the main gas valve or its associated controls will be ignited at once instead of being left to accumulate until the clock switch closes. The shunt circuit may include a thermal switch (13), Fig. 1 (not shown), in parallel with clock switch (11) and arranged to be closed until resistance element (14) has warmed sufficiently to open it. Or the shunt circuit may comprise an electronic delay circuit such as a simple capacitor/resistor link, Fig. 2 (not shown), and Fig. 3 or an A.C. operated thyristor-switched circuit, Fig. 4 (not shown), or a D.C. operated transistor switched circuit, Fig. 5 (not shown). The clockcontrolled switch and its shunt circuit may be in the main supply to the igniter, or in the biasing circuit of a thyristor (TY1) of the igniter, Fig. 2 (not shown). The circuit may also include a switch 15 controlled by a flame failure device, arranged in series with clock switch 20 to be bypassed by the shunt circuit. The igniter may be a spark device or a glow coil device.
Patent GB-1518694-A (GB)
Title: Vehicle wheel and a combination of such a vehicle wheel and a valve assembly
IPC: B60B21/02
Filed: 1975-10-31
Abstract: 1518694 Vehicle wheels GEORG FISCHER AG 31 Oct 1975 [15 Nov 1974] 45472/75 Heading B7C The rim 1 of a vehicle wheel has a well base 10 formed in one circumferential zone with a radially outwardly projecting portion 14 having an opening 12 for the passage therethrough of an element of a valve assembly. The illustrated wheel is intended for use with a tubeless tyre and the opening 12 in the projecting portion 14 receives a screw-threaded member 16 of a valve pipe 4. In a modification, the wheel is intended for use with a tube tyre and a valve fixed to a tyre inner tube is guided through the opening in the projecting portion.
Patent GB-1242719-A (GB)
Title: Aperture controlled electrostatic printing system and method
Inventor: PRESSMAN GERALD L
IPC: G03G15/34
Filed: 1968-09-25
Abstract: 1,242,719. Electrostatic printing; stencils. ELECTROPRINT Inc. 25 Sept., 1968 [6 Oct., 1967], No. 45571/68. Heading B6C. [Also in Division G2]  An apparatus for electrostatic printing employs a two-layer composite screen on which an electrostatic charge image is formed so as to area-modulate a flow of charged toner particles. The composite screen comprises an apertured layer of insulative material in contact with an apertured layer of conductive material the apertures in the two layers coinciding. Preferably the insulative layer is photoconductive so that the charge image may be formed optically. A layer of induced charge is formed at the junction of the layers of the opposite polarity to an imagewise charge on the surface of the insulative material so that at a distance of more than a few screen thicknesses away from the screen, the resultant field is near zero allowing charged toner particles to pass through the screen in non-charged areas uninfluenced by the charged areas, while in the fully charged areas the particles fall on to the screen. The areas with reduced charge effectively limit the apertures of the screen, Fig. 9 (not shown). In a printing apparatus a continuous screen 121 comprising a photoconductive layer passes over rollers 122- 125. The screen is image-wise charged at station 130 then moves to a toner transfer station 140 where a toner agitating device 143 and an electric field produced by roller electrode 150 propel the toner particles towards the screen, those emerging falling on to a copy sheet 145 on which the image is fused by a heater 157.
Patent GB-927069-A (GB)
Title: Seat suspension
IPC: B60N2/06
Filed: 1961-12-20
Abstract: 927,069. Resilient seat mountings. CLARK EQUIPMENT CO. Dec. 20, 1961 [Dec. 29, 1960; Nov. 6, 1961], No. 45700/61. Class 52 (1). A seat suspension includes a seat supporting member, e.g. cover-plate 46, connected in vertically spaced relation to a seat by resilient shear means permitting limited universal movement. A pivotally mounted plate 46 (Figs. 2, 3) having openings 54, is secured to a seat frame 74 by brackets 56, 62 via a resilient member 58, the brackets 62 extending through the openings 54. Alternatively, the plate 46 and the seat are interconnected via a resilient member 100 (Figs. 6, 8) having outer and inner annular portions 102, 104 and a web portion 106, the outer portion 102 including a circumferential, forked flange 108 bonded to a metal flange 110 for fixing to the plate 46 and the inner portion 104 being sleeved at 116 to receive a stud 118 carried by a load-equalizing plate 120 secured to the seat tracks 68. The seat position is longitudinally adjustable.
Patent GB-1125905-A (GB)
Title: Paper manufacture
IPC: D21F1/52
Filed: 1965-10-29
Abstract: 1,125,905. Paper-making. TIME Inc. 29 Oct.. 1965 [29 Oct., 1964], No. 45946/65. Heading D2A. In a paper-making machine in which a web is formed between two wires 26, 28, means are provided to cause the web to follow one of the wires when the wires separate, with the other wire being free of restraint at the point of separation of the wires. The means may be a suction roll 50 as shown, or roll 50 may be omitted and roll 54 made a blow roll. There is an inner wire 30-for example of nyloninside wire 26. Suction box 32 has an arcuate surface 33 which may be part of a circle, parabola, hyperbola, or a sine wave. Suction box 32 is divided up into zones of increasing degrees of suction in the downstream direction. Surface 33 is formed by slats which may extend transversely, or which may be comprised of two groups of parallel slats, each group extending substantially longitudinally but slightly and oppositely angled thereto. The latter form of surface 33 may be moulded and covered with silicon carbide, polished to a mirror-like finish.
Patent GB-1081407-A (GB)
Title: Improvements relating to the application of electrodes to semi-conductor devices
Inventor: GERLACH WILLI
IPC: H01L21/00
Filed: 1964-11-11
Abstract: 1,081,407. Semi-conductor devices. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Nov. 11, 1964, No. 45969/64. Heading H1K. An electrical connection to a silicon body comprises a wirelike lead provided at one end with a flat disc or strip having an aluminium surface which is ultrasonically welded to the silicon body. The lead wire may be of nickel and the disc or strip may be of tungsten, molybdenum, iron, nickel, iron-nickel alloy, or iron-nickelcobalt alloy, with an aluminium coating on the surface joined to the silicon body. The lead may comprise a wire of nickel, copper, iron, or iron-nickel alloy provided with an aluminium " head." The invention may be utilized to form the gate electrode of an SCR.
Patent GB-1204695-A (GB)
Title: Seed trays
Inventor: MARCAN BETTY MURIEL
IPC: A01G9/10
Filed: 1967-10-09
Abstract: 1,204,695. Seed trays. B. M. MARCAN. 4 Oct., 1968 [9 Oct., 1967], No. 46067/67. Heading A1E. [Also in Division B8] A plastics seed tray has partition walls 1, 4 all of which are of less depth than the side walls 2 and non-parallel partition walls being of different heights. In a modification, Fig. 7, alternate walls 4 of one set of partition walls are approximately half the height of the others. The trays may be nested.
Patent GB-1474889-A (GB)
Title: Card clothing
IPC: B21F45/10
Filed: 1973-10-04
Abstract: 1474889 Fillet card clothing ENGLISH CARD CLOTHING CO Ltd 27 Sept 1974 [4 Oct 1973] 46296/73 Heading D1N Wires 20 project from the surface of a fillet card clothing by an amount a in the range 0.050 to 0.090 inches and the tips of the wires are hardened where they project from the clothing after fitting into the foundation material. The angle # of the wire tip is in the range 20‹ to 30‹. The foundation 10 comprises layers of woven fabrics 12 secured together by latex with a surface layer 14 of polyvinylchloride. The surface may incorporate a silicone release agent as in Specification 1362602. The wires can be of rounded cross section, Fig. 3 (not shown) with a straight cut top edge. The clothing may be employed in card clothing elements as described in Specification 1474888.
Patent GB-1527530-A (GB)
Title: Impeller for axial-flow fans
IPC: F04D29/36
Filed: 1976-11-08
Abstract: 1527530 Variable pitch axial flow fans ANTON PILLER KG 8 Nov 1976 [12 Nov 1975] 46334/76 Heading F1C The pitch of an axial-flow fan blade 12 is varied incrementally by an index plate 28 containing drillings 56, 58, 60, 62 which may be selectively aligned with drillings 48, 50, 52, 54 in blade root 16, the two sets of drillings having different angular spacings so that alignment of any pair is associated with a given pitch, the alignment being maintained by a plate 40 bearing an index pin 42 which passes through the aligned drillings, the assembly being clamped in position by a screw 34. Stop dogs 44 which abut a shoulder 26 of the fan hub 4 prevent the plate 28 from rotating relative to the hub. In another embodiment, Figs. 3 to 7 (not shown), the blade root contains eight drillings spaced at 45 degrees intervals, and the index plate contains 9 drillings spaced at 40 degrees intervals, this giving a range of adjustment for blade pitch of Œ 90 degrees in steps of 5 degrees. To provide a continuous range of adjustment between the steps, the stop dogs may be formed by screws (104) which abut shoulder 26 and which may be adjusted to rotate the index plate relative to the hub.
Patent GB-977885-A (GB)
Title: Improvements in or relating to sheet cutting apparatus
Inventor: SUTHERWOOD GORDON RICHARD
IPC: B26D1/30
Filed: 1962-12-07
Abstract: 977,885. Cutting apparatus. GUTTERIDGE, SAMPSON Ltd. Dec. 6, 1963 [Dec. 7, 1962], No. 46349/62. Heading B4B. Sheet cutting apparatus comprises a work platform 10 and a blade 15 which is mounted on a blade carrier 16 arranged for pivotal movement relatively to a cutting edge 11 and projects laterally therefrom towards the cutting edge of the work platform, the thickness of the blade in the plane of its cutting movement being less than its breadth. The cutting edge 11 of spring steel is screwed to a channel member 14, Fig. 2, and is inclined slightly to the vertical and the blade comprises a length of spring steel 15 mounted on a carrier 16 of inverted-U section. A sleeve 23 and spring 24, Fig. 3, form a pivot for the carrier 16, and adjustment of a nut 26 threaded on the spring urges the blade towards the platform with the desired tension. A nose 28 on a lug 29 at the pivoted end of the carrier 16 acts as a stop when the blade carrier is raised, and engages the corner 10a of the platform, limiting the upward pivotal movement of the carrier, a stop 30 limiting downward movement. The handle 31 is extensible to vary the leverage exerted. Part of the blade 15 adjacent the pivot is formed as a cam, coacting with the edge 11, and the cutting edge of the blade 15 extends at approximately 89 degrees relative to the pivot axis, so that the tension spring 24 urges the blade and carrier hard against the cutting edge 11. In a modification the blade carrier comprises a spine with a pocket at each end to receive the ends of a strip of spring steel, bowed to the extent desired for rigidity. The edge of the blade may be ground, the blade lying in a plane declining towards the work platform.
Patent GB-1483266-A (GB)
Title: Tobacco-cutting machine
IPC: A24B7/14
Filed: 1974-10-25
Abstract: 1483266 Cutting tobacco HAUNI-WERKE KORBER & CO K G 25 Oct 1974 [27 Oct 1973] 46379/74 Heading A4C [Also in Division B8]  A tobacco cutter comprises a pair of convergent chain conveyers 4, 6 which compress tobacco into a cake at a mouth 14, the lower conveyer 6 extending further rearwardly than conveyer 4 and receiving the tobacco from a shoot 1, one wall of the shoot consisting of vertically arranged spaced slats 24 provided at their ends with eccentric discs 29 mounted on shafts 27, 28 such that as the shafts are rotated by a motor 26 via pulleys 41, 42 alternate groups of slats 32, 32 oscillate vertically whilst moving rotationally, the slats in their forward position with respect to the shoot causing the tobacco to be compressed with a constant horizontal force and at the same time moved downwardly. The opposite wall of the shoot may also be formed of slats driven in the same manner. The conveyers are driven by a motor 7 with conveyer 6 fixed in position but conveyer 4 pivoted at 8 and acted upon by a pressure generator 11 at its opposite end. The tobacco is cut by knives 16 on a drum 17 rotated by a motor 18, the knives being sharpened on a grinding wheel 19 dressed by a diamond 21 and co-operating with a fixed cutter on the lower mouthpiece portion 13, cut tobacco exiting via channel 46.
Patent GB-1129985-A (GB)
Title: Device for adjustably fixing a facing to a wall
IPC: E04F13/08
Filed: 1965-11-03
Abstract: 1,129,985. Facing walls. A. DRAGUET. 3 Nov., 1965 [6 Nov., 1964], No. 46483/65. Heading E1H. A device for fixing a facing to a wall 1 is disposed in a vertically extending space between two adjacent facing slabs 2 is arranged so that height and depth adjustments are possible from outside by actuation of one and/or the other of two screw threaded rods respectively provided for each of the said adjustments. The device comprises a bracket 3 secured to the wall 1 and having a hollow projection 5 into which the end of a first screwthreaded rod 7 fits a tapped cylindrical member 23 connecting the rod 7 to a link 19 which is provided with pivot pins 20 that engage in cavities formed in the facing slabs 2 a link 15 secured in the projection 5 in which it terminates as a head so disposed as to hold the rod 7 in an axial position, a pivot 18 connecting the link 15 to the link 19 a second screw threaded rod 27 applied (at 29) to the bracket 3 and a tapped cylindrical member 26 connecting the link 19 and the second rod 27, and locking means (24, 30) for each of the screw threaded rods. Rotation of the first rod 7 by a key fitted in a cavity 7' therein produces horizontal movement of the slabs 2 while rotation of the second rod 27 produces vertical displacement of the slabs.
Patent GB-953024-A (GB)
Title: Friction clutches
Inventor: HOBBS HOWARD FREDERICK
IPC: F16D43/284
Filed: 1961-12-29
Abstract: 953,024. Friction clutches. HOBBS TRANSMISSION Ltd. Nov. 29, 1962 [Dec. 29, 1961], No. 46657/61. Heading F2C. In a friction clutch for an automatic transmission on a motor vehicle wherein a driven disc 26 is clamped to a driving housing 16 through a presser plate 24, heat-insulator plate 35A and diaphragm 35, or piston, by supplying liquid pressure to a space 33, the exhaust of pressure from which is controlled by a radial centrifugal valve 44, outward movement of the valve 44 is opposed by liquid pressure in the space 33 acting constantly through a port 47, and also by a spring 62 which is itself acted on by a separate centrifugal mass 61 which, above a predetermined speed, which is a little above engine idle, fully compresses the spring 62 against a cap 18 so that it no longer loads the centrifugal valve 44. Rapid clutch disengagement on decreasing speeds is thereby obtained without interfering with the normal clutch engaging characteristic of the valve. The centrifugal valve provides automatic clutch disengagement at engine idle speeds, and engagement at both higher and lower speeds, the latter for a push engine start. As shown, there are two such clutches 26, 27, engaged separately and together to provide ratios in the automatic transmission. Each clutch is controlled by an automatic centrifugal valve such as 44. Fluid pressure is supplied selectively to the clutch pressure spaces 33, 34 under control of a valve (not shown) through pressureopened spring loaded valves 40. Initially, with the engine stopped, each centrifugal valve plunger 44 is urged by the spring 62 and a further spring 63 to its innermost position blanking ports 46, 49 to maintain clutchengaging pressure. Increase in speed to engine idle causes the plunger 44 to move centrifugally outwards, against the shoulder of the mass 60, opening the port 46 to exhaust the clutch pressure via a plunger groove 54 and a port 48. Should, during this idling condition, the plunger 44 move inwards, the second port 49 opens and relieves the pressure acting at the outer end of the plunger, thus maintaining its intermediate position. Further increase in speed above idling causes the mass 60 to move out and seat against the cap 18, removing the bias of the spring 62 from the plunger 44 which subsequently moves outwards and again blanks the port 46 for clutch re-engagement. The action of the centrifugal valves may be matched to a suitable shift pattern of speeds of up and down changes. Specifications 628,499, 673,737, 707,313 and 738,590 are referred to.
Patent GB-1533189-A (GB)
Title: Information-transmitting apparatus
IPC: G06Q50/00
Filed: 1975-11-12
Abstract: 1533189 Data processing CASIO COMPUTER CO Ltd 12 Nov 1975 [15 Nov 1974] 46678/75 Heading G4A Information, such as sales data, in the form of a series of information groups separated by positioning codes R e , each information group consisting of a plurality of items separated by positioning codes C p  is processed to eliminate those digits in selected items which are the same as the corresponding digits of the corresponding items in the preceding information group. The information is supplied to a coincidence detector 11 which also receives from a buffer register 8 the selected items of the previous information group, noncoincidence causing a flip-flop 5 to be set to enable an AND gate 9 to pass the information to an OR gate 10, coincidence causing gate 9 to be disabled. The identifying numbers of the selected items are entered in a memory 1 which, together with a counter 3, is reset by each group positioning code R e . The counter 3 is advanced by each item positioning code C p  as is the memory 1 for the selected items. When a coincidence detector 6 detects coincidence between the outputs of memory 1 and counter 3 this indicates a selected item, and enables, via an AND gate 7, shifting of buffer register 8, partially enables AND gate 9 and disables an AND gate 14. When coincidence detector 6 detects non-coincidence this indicates a non-selected item, disables AND gate 9 and shifting of buffer register 8 and enables AND gate 14 to pass the information to OR gate 10. The information from OR gate 10 may be stored in a memory (15, Fig. 6, not shown) from which it is subsequently read out and processed using a further buffer memory (28) to derive the original information with the eliminated digits re-inserted.
Patent GB-1314867-A (GB)
Title: Flexible moulds and process for their production
IPC: B29C33/38
Filed: 1970-10-02
Abstract: 1314867 Making polyurethane moulds GOODYEAR TIRE & RUBBER CO 2 Oct 1970 [3 Nov 1969] 46888/70 Heading B5A A method of making a flexible polyurethane mould, comprising the steps of (a) coating a plaster of Paris model with a suitable mould to release agent (b) spraying a "hydrocarbon polyurethane " (see below) on to the model to give a film of 10-100 mil thickness, (c) placing the model and film into the cavity of a retaining mould in such a manner that there is a clearance of at least <SP>1</SP>/ 10  inch between the cavity surface and the film on the model, (d) filling the cavity with a liquid polyetherurethane or polyesterurethane reaction mixture, and reacting the mixture to form a flexible polyurethane layer adhered to the film, and (e) stripping the formed flexible mould from the retaining mould and model. The hydrocarbonpolyurethane is the reaction product of a hydrocarbon polyol of 2-3 hydroxyl groups, an organic diisocyanate, and an organic diamine. The hydrocarbon polyol is hydroxyl terminated polymers of a conjugated diene of 4-10 carbon atoms or a copolymer of the diene with styrene.
Patent GB-1280386-A (GB)
Title: Anti-fertility agents
Inventor: HELLER MILTON DAVID
IPC: A61K31/573
Filed: 1970-10-08
Abstract: 1280386 Contraceptive compositions AMERICAN CYANAMID CO 8 Oct 1970 [13 Oct 1969] 48025/70 Heading A5B [Also in Division C2] Compositions for inhibiting fertility in warmblooded female animals comprise a compound of the formula: wherein X is H or Cl; -A-B< is a trivalent H radical selected from -C = C< and H  -C-C<; R is C 1-4  alkyl; R 1  is C 1-4  alkyl Cl Cl  or phenyl; and - indicates a double or single bond; and a pharmaceutically acceptable oral carrier or diluent. The compositions are administered orally in the form of tablets capsules, suspensions, syrups, elixirs, emulsions, wafers or chewing gum. Fertility in warmblooded female animals may be inhibited by the oral administration of the above active compounds.
Patent GB-1448315-A (GB)
Title: Universal coupling
IPC: F16D3/20
Filed: 1974-11-08
Abstract: 1448315 Universal joints L F SCHMID 8 Nov 1974 [8 Nov 1973] 48393/74 Heading F2U A constant velocity-ratio universal joint comprises three equally circumferentially spaced members 5 having each a cylindrical portion 6 engaging slidably and rotatably in a respective radial bore 4 of an inner coupling member, the members 5 being biased radially outwardly to engage axial grooves 7 of an outer coupling member by biasing means acting on the radially inner ends of cylindrical portion 4. As shown in Fig. 1 the biasing can be by a spring-biased member 12 having a conical surface 13 engaging a part-spherical surface 16 of each cylindrical portion, the surface 16 may be conical with the member 12 replaced by a ball. In the embodiment shown in Fig. 5 the biasing is by a resilient block 31 (e.g. of polyurethane rubber). The members 5 have each a part-spherical surface 27 engaging in a groove 7 and the outer and inner members can move axially relative to one another.
Patent GB-1524289-A (GB)
Title: Magnetic holding or release device
IPC: H01H71/32
Filed: 1976-11-19
Abstract: 1524289 Magnetic switches FELTEN & GUILLEAUME 19 Nov 1976 [2 Dec 1975] 48428/76 Heading H1N A holding magnet having a release coil 2 for energization to release an armature 3 for tripping a circuit-breaker (not shown) has a permanent magnet 1 across separated laminations 4, 5 which are normally bridged by the hose of the Y-shaped armature 3 whose other arms form knife edge pivots and is biased by a spring 7.