baber/WOPTO huggingface dataset:
Patent GB-1279838-A (GB)
Title: Improvements in or relating to control circuits for d.c. electric motors
Inventor: MORTON JOHN
IPC: H02P7/28
Filed: 1969-10-28
Abstract: 1279838 Control of D.C. motors CABLEFORM Ltd 12 Oct 1970 [28 Oct 1969] 52679/69 Heading H2J A motor, which has an armature A associated with diode D1 and field winding F, is supplied from battery B through thyristor switch S, a unit, responsive to pulses of armature voltage, starting to count from zero each time a fieldreversing switch FR moves into or through an "off" position. A relay RLA restricts the motor current when the counter operates between zero and a predetermined number, but permits full current at other times. The pulses of armature voltage are applied to a network R4, Z1, which ensures constant amplitude pulses. The counter comprises small capacitor C1, large capacitor C2, diode D2, and resistor R3 so that the charge on capacitor C2 increases with each pulse until diode D3 breaks down and transistor T1 conducts to energize relay RLA. The capacitor C2 is discharged through transistor T2, the transistor T1 being held conductive through resistor R1. Contacts RLA2 then change over the control voltage for the switch S from a low range to a high range, ensuring that the motor is stopped before a high range of current is applied.  The relay RLA is de-energized when the switch FR passes through the "off" position, the control range being changed to low values suitable for braking.
Patent GB-1435992-A (GB)
Title: Cloth cutting machines
IPC: B26F1/38
Filed: 1973-04-25
Abstract: 1435992 Machinery guards WOLF MACHINE CO 25 April 1973 [20 Sept 1972] 53343/75 Divided out of 1435991 Heading F2J The subject-matter of this Specification is identical with that of the parent Specification 1,435,991 but the claims are directed to the blade sharpener device 26, together with its auxiliary guard section 37, of the cloth cutting machine.
Patent GB-1293953-A (GB)
Title: Apparatus for the manufacture of metal carbide products
IPC: C04B35/56
Filed: 1969-10-31
Abstract: 1293953 Metal carbides UNION CARBIDE CORP 31 Oct 1969 [1 Nov 1968] 53352/69 Heading C1A [Also in Division F4] Metal carbides are produced by feeding briquettes containing metal oxide and carbon into the top 28 of a vertical, refractory lined (which lining includes at least one monolithic liner unit extending the length of the shaft) reaction vessel, which vessel has a heated upper portion 30 and a cooled lower portion 32 with cooling means 16 which are placed immediately below the heated zone, such that the carbide formed in the heated zone is cooled before being automatically removed 36 from the vessel. The upper portion of the vessel may also be provided with a sleeve of insulating material 24 which surrounds the lining. The lining may be graphite. Specified carbides are those of V, Nb, Ta and Ti.
Patent GB-1412978-A (GB)
Title: High speed logic circuits
IPC: H03K3/84
Filed: 1972-11-20
Abstract: 1412978 Parity checking circuits; pseudo random pulse generators RCA CORPORATION 20 Nov 1972 [22 Nov 1971] 53455/72 Headings G4D and G4A [Also in Division H3] A logic circuit suitable for use in a pseudo random pulse generator comprises an arrangement 16, 18 for presenting logic signals to a wired or phantom OR circuit 76 immediately after the clock signal period of a clock signal, a flip-flop 12 having an input coupled to the OR circuit 76 output, a clock input T, and a complementary output Q, of the logic circuit being available to a utilization circuit 70, 14 immediately after the the clock signal period of the next succeeding clock signal. The logic circuit may be connected in a feedback loop in a sequence generator or may simply be connected in an open feed-forward arrangement (Fig. 6, not shown). In the sequence generator of Fig. 2 including shift register stages 12, 14, 16, 18, points A, B, C, D are at "0" level to start with, a "1" level is shifted forward at each clock pulse and the initial pattern repeats after 15 clock pulses. The feedback loop includes further flip-flops 52, 66 and wired OR circuits 58, 76 so that the only delays occur in the flip-flops and a high speed of operation is possible. In the alternative embodiment of Fig. 4 (not shown) the flip-flop 52 is dispensed with and the line 60 is connected to an auxiliary Q<SP>1</SP> terminal on 16 electrically isolated from Q. In the embodiment of Fig. 5 (not shown), the OR gates 58, 76 and 70 are formed by electrically isolated D inputs on the flipflops 66, 12 and 14 respectively. In the sequence generator arrangements of Figs. 2, 4 and 5, the signal processed is the clock itself. In the feed-forward arrangement of Fig. 6 (not shown), signals representing various combinations of binary digits are applied to the input gates to perform a desired logic function. The electrically isolated dual inputs may be provided by two input transistors having a common or parallel output circuit point. A circuit arrangement for performing digital data parity checks includes (as shown in Fig. 6) a logic circuit arrangement comprising wired OR gates 58, 70, 76 and shift register flip-flops 12 and 66. Logical signals A, B, C, D to be processed are presented to OR gates 58, 76 immediately after a first clock signal and the final output is obtained immediately after the next clock signal.
Patent GB-538335-A (GB)
IPC: F16D65/22
Abstract: 538,335. internal expanding brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and CHOUINGS, L. C. Sept. 30, 1940, No. 14723. [Class 103 (i)] Relates to operating mechanism for brakes of the internally expanding type, the mechanism being of the kind in which the shoes are spread by a wedge or toggle-like device actuated by a thrust applied perpendicular to the direction of movement of the shoe ends and which is produced by either of two operating systems, such as a fluid pressure system and a mechanical linkage. In the invention as shown in Fig. 2, a fluid-pressure cylinder 28 closed at its end remote from the spreading device is mounted on the back-plate 14 for supporting the brake and the piston 29 is formed with a deep diametral slot 33 receiving the inner end of a lever 36 pivoted in a cylindrical flange projecting from the wall of the cylinder 28, a mechanical linkage being connected to the outer end of the lever 36 ; the piston and lever each act directly on the thrust member 21 carrying the pivoted spreading members 23, 24 acting on the inclined ends of tappets 16, 17 engaging the brake shoes. The thrust member 21 is prevented from lateral movement by fingers 42 projecting inwardly from a washer 43 clamped between the cylinder 28 and the back-plate 14, further fingers 44 projecting from the washer serving to limit the movement of the spreading members.
Patent GB-1404640-A (GB)
Title: Gas discharge panel display apparatus
IPC: H01J17/49
Filed: 1972-11-22
Abstract: 1404640 Gas discharge display panels INTERNATIONAL BUSINESS MACHINES CORP 22 Nov 1972 [30 Dec 1971] 45049/72 Heading H1D A gas discharge panel display apparatus comprises a plurality of cells 9-17 each having a cathode 7, an anode 21, a control electrode 27 and a collector electrode 49-57; means for applying potentials to the cathodes and anodes of the cells to produce a low intensity glow D.C. discharge therein; and means for applying potentials to the control and collector electrodes of the individual cells whereby the individual cells can be selectively operated either in a state wherein the control electrode maintains an ion sheath sufficient to block flow to the collector electrode and thereby permit the low intensity glow discharge or in a state wherein charge flow to the collector electrode occurs to permit a high intensity glow D.C. discharge.  The cathode 7, which may be divided into strips and may be pulsed, may be of Mo or Ta in the form of a plate or a stack of thin sheets, the anode 21 of Mo, the control lines 27 of Mo or W, and the collector electrodes 49-57 of indium oxide or tin oxide which may be deposited on the face plate 1. Control lines 27 are spaced from the anode 21 by insulating spacers 29-37 or by metallic spacers, e.g. of gold, if these are mounted on the glass insulating spacer 38. The cathode 8 and anode 21 are separated by a glass spacer 19. Apertures 39-47 in control lines 27 are offset from apertures 9a-17a in the spacer 19 so that the low intensity glow discharge between the cathode 7 and anode 21 is largely obscured from a viewer. The gas filling may be pure helium at a pressure of 90 torr., helium with 2% argon at 70 torr., or neon with 1% argon or nitrogen.
Patent GB-1129810-A (GB)
Title: A vibration damping and shock-resistant support and device for use in the manufacture of the support
IPC: F16F7/14
Filed: 1965-12-21
Abstract: 1,129,810. Vibration damping mountings; cable tensioner. C. CAMOSSI. 21 Dec., 1965 [21 Dec., 1964; 14 Jan., 1965; 13 July, 1965], No. 54062/65. Headings F2G and F2S. A vibration damping mounting comprises two parallel bars 2 preferably of plastics material having connected therebetween lengths 3<SP>1</SP> of a stranded, preferably metal, cable, the ends of the lengths of the cable being embedded in the bars 2 by a die-casting process. The plastics material may comprise a polyamide resin. The cable before it is partly encased in the bars may have a zig-zag configuration or a helically coiled configuration (Figs. 4, 5, not shown). In the case of the zig-zag configuration the cable is at first strained into the configuration on a device comprising two parallel plates each having a plurality of upwardly projecting spokes, the spokes of one set being staggered with respect to the other (Figs. 6, 7, 8, not shown). The cable is wound about the spokes and its ends are held in clamps provided one at each end of one of the plates, the plates being then urged apart by a screw device. When in tension the parallel parts of the cable are clamped between two further plates (Figs. 9, 10, not shown), the unit comprising the cable and two further plates being then transferred to the die-casting position whence the bars are formed on the cable, the two plates being then released from the parallel portions of the cable.
Patent GB-1326960-A (GB)
Title: Switch arrangements for motor vehicles
IPC: B60Q1/14
Filed: 1970-11-13
Abstract: 1326960 Windscreen wipers WESTFALISCHE METALL INDUSTRIE KG HUECK & CO 13 Nov 1970 [27 Nov 1969] 54126/70 Heading A4F [Also in Division H1] A switch arrangement for a motor vehicle comprises a lever 1 adapted to be mounted on the vehicle steering column with an end projecting adjacent the steering wheel, and having at said end a switch with an operating member 8 for switching on a windscreen wiper motor in different speed stages, and a switch having an operating member 9 for intermittently energizing the wiper motor. The member 8 comprises a ring rotatable on a switch housing 2 and having an inwardly directed lug for rotating a part of electrically insulating material carrying contact bridges pressed by springs 16, 17, 18, Fig.3 (not shown) on to contacts on a baseplate 19. The member 9 comprises a rotary cap on the housing 2 and carries a contact bridge 13 urged by a compression spring 14 on to a contact 15 and a resistance track 11, and towards an arcuate contact 12 on a baseplate 10. When the member 9 is rotated for intermittent operation of the wiper motor the contact bridge slides from engagement with the baseplate 10 to engage the contact 12 to switch on the motor, and rotary adjustment of the member 9 to vary the length of resistance track 11 short circuited by the contact bridge determines the interval between successive energizations of the wiper motor. In an alternative embodiment the rotary cap 9 is replaced by a rotary member 20 Fig. 4 (not shown) projecting from the housing 2 and of smaller maximum diameter than the ring 8. The lower end of the lever 1 projects into a housing (not shown) containing switches e.g. for controlling flashing direction indicator lamps or the vehicle lighting system, which switches are operated by pivoting the lever 1.
Patent GB-1112948-A (GB)
Title: Oil evaporation burner
IPC: F23D5/00
Filed: 1966-12-05
Abstract: 1,112,948. Oil burners. G. BAUKNECHT G.m.b.H. ELEKTROTECHNISCHE FABRIKEN. 5 Dec., 1966 [7 Jan., 1966], No. 54302/66. Heading F4T. An evaporation type oil burner comprises a pan 1 supplied with air through a pipe 4 which extends through an outer wall 5, there being fixed to the outer wall a bi-metallic element 9 having attached to it a lid 16 which gradually closes pipe 4 as the burner heats up from cold to its operating temperature. That part of the bi-metallic element next to the wall 5 is corrugated and the lid is supported on a bolt 17 slidable in a hole 18 in an arm 15 attached to the free end of the element 9. A spring 19 is compressed between the arm 15 and lid 16.
Patent GB-545364-A (GB)
Abstract: 545,364. Interrupters. BRITISH THOMSONHOUSTON CO., Ltd., and GRIFFITHS, L. Jan. 22, 1941, No. 842. [Class 38 (v)]. A contact - breaker arm 2 has two heels 5a, 5b co-acting with a cam which has a number of lobes 1 which is half that of the desired number of interruptions per revolution, each lobe bearing on the two heels in succession, as indicated by the dotted outlines.
Patent GB-1415885-A (GB)
Title: Lamp holders
IPC: H01R33/46
Filed: 1972-11-23
Abstract: 1415885 Mounting lampshades on lamp holders J R TAIT 20 Feb 1974 [23 Nov 1972 19 March 1973 4 May 1973] 54550/72 13154/73 and 21336/73 Heading F4R [Also in Division H2] A lampshade 34 may be retained on a lampholder 2 by a helical spring 36 fitting a conical groove with upper and lower abutments 30, 32, the upper end of the spring having a short tangential extent 38 (Fig. 1, not shown) and the lower end a loop or tab 40 to facilitate fitting.
Patent GB-1081059-A (GB)
Title: Improvements in or relating to spot-type disc brakes
IPC: F16D55/00
Filed: 1965-12-24
Abstract: 1,081,059. Disc brakes. BUDD CO. Dec. 24, 1965 [Dec. 24, 1964], No. 54814/65. Heading F2E. A spot-type disc brake comprises a rotatable, axially-fixed disc 16, a pair of anchor pins 13 fixed to a stationary component, such as the lugs of a spindle member 15, Figs. 1 and 4 (not shown), or a fan-shaped fixed plate, which pins are located radially outside the disc and extend parallel to the disc axis, a pair of backing plates 11 carrying friction pads 17, each of said plates being carried at or adjacent its ends on said pins and capable of axial movement to and from the disc thereon, and a C-shaped calliper 10 which is supported from said backing plates by a pair of pins 12 slidably extending therethrough and which houses at least one fluid piston/cylinder assembly 31 in one limb for biasing the pads towards the disc. The twopart piston 34, 35 urges one backing plate/pad assembly against one disc side and reactively applies the other pad assembly through the opposing calliper limb, the line of thrust acting on said assemblies being radially offset from the disc axis by a distance less than the radial offset of the pads' centre of area from the disc axis, Fig. 3 (not shown). Each pad comprises segmental portions 17a, 17b (Figs. 5 and 16 not shown), of which the trailing portion with respect to normal disc rotation may be of greater arcuate extent. Each backing plate has elongated holes 21, 22 in chordwise extensions to ensure that circumferential forces exerted by the disc on the pad are transmitted to the anchor pin located ,at the leading end of the pad. In a modification, Figs. 7 and 8 (not shown), two piston/cylinder assemblies are located in one calliper limb, said calliper being supported by a pair of pins passing through a second pair of extensions 42 on the backing plate. Single or dual pistons may be provided in each limb of the calliper.
Patent GB-1313719-A (GB)
Title: Ice cream machines
IPC: A23G9/16
Filed: 1971-11-25
Abstract: 1313719 Ice cream freezers A PAW SA 25 Nov 1971 [28 Nov 1970] 54844/71 Heading F4H An ice cream freezer comprises a mixing and freezing chamber 3 of the continously dispensing type and an upper storage vat 1 connected thereto by a conduit 2, the chamber and vat being surrounded by series connected evaporators 8, 10 res pectively of a compression refrigeration system having a thermostatically controlled valve 13 positioned between the evaporators responsive to the temperature of the vat to switch the evaporator 10 into and out of the circuit.
Patent GB-1172140-A (GB)
Title: Improvements in or relating to Machines for Shaving, Smoothing and Stretching Leather, Hides and like materials
IPC: C14B1/10
Filed: 1967-12-05
Abstract: 1,172,140. Shaving, smoothing and stretching machines. MASCHINENFABRIK MOENUS A.G. Dec.5, 1967 [Feb. 7, 1967], No.55308/67. Heading C6C. [Also in Division F2]  A machine, Fig. 1, for shaving, smoothing and stretching leather, hide and like material 19 incorporates a composite feedroll 6, having several sections, e.g. 26, 21 and 24 Fig.2, which are substantially equal in diameter, but have tapering end-portions, 48, 52, 50 and 46. Each roller section may be provided with a peripheral facing of rubber or like resilient material, and the different facings may have different degrees of resilience. For example, the two outer roller sections 26 and 24 may have equally resilient facings 44 and 42, and the central section 21 may have a facing 40 which is harder, by 10 Shore hardness units, than the facings 44 and 42. The roller sections 24 and 26 are mounted on journals 22 and 23 projecting axially from the central section 21, and run on needle bearings 36, 38. Means e,g. comprising a counter-shaft 34, pulleys 32, 30 and belts, are provided for driving the sections 26 and 24 at the same angular speed, which is slower, faster or equal to the speed of the central section 21, which may be driven by a chain-or belt-drive 28. The machine also comprises a rotatable slicking roll 14, which is provided with peripheral slickers running helically outwards from its centre, and can be moved out of or into its working position, as by hydraulic mechanism controlled by a pedal; a rotatable shaving cylinder 4 provided with helical peripheral blades; a  rotatable supporting roll 10, e. g. having a chromium plated metal surface, which can be moved to and fro along a slot 12, as by said hydraulic mechanism, out of or into its working position; and a grinder 8 rotatably mounted, in adjustable bearings, so that it can be moved towards or away from the cylinder 4.
Patent GB-1501089-A (GB)
Title: Coating compositions
IPC: C09D5/00
Filed: 1974-12-23
Abstract: 1501089 Thermosettable coatings ROHM & HAAS CO 23 Dec 1974 [17 Jan 1974] 55540/74 Heading B2E [Also in Division C3] Metals are coated with thermosettable coatings comprising an alkaline aqueous blend of a binder comprising (A) a water-soluble salt of a tertiary amine and a water-insoluble copolymer having a viscosity average molecular weight of 20,000 to 200,000 and derived from (1) at least one C 1 -C 16  alcohol ester of an α, #-ethylenically unsaturated carboxylic acid, (2) 1-4% by weight of an ethylenically unsaturated mono- or poly-carboxylic acid or a salt thereof with a volatile base or a partial ester or partial amide of such a polycarboxylic acid, and (3) 3-20% of a C 2 -C 4  hydroxyalkyl acrylate or methacrylate and/or a methyl or ethyl ester of α-methylolacrylic acid; (B) a water-soluble condensation product of urea and/or a triazine with formaldehyde or a water-soluble methyl or ethyl ether thereof; and (C) 1-5% by weight (based on A and B) of poly(ethylene glycol) or poly(ethylene oxide) as water-soluble rheology modifier having a number average molecular weight of from 400 to 100,000, the weight ratio of A to B being from 85:15 to 65:35, the minimum filmforming temperature of the composition being at most 25C, and the solids content of the composition being from 30-80% by weight. The compositions may additionally contain organic solvents or coalescents, and pigments. The copolymer may optionally be derived from further monomer components such as esters of unsaturated acids having up to 20 carbon atoms in the alcohol moiety, as well as vinyl aromatic monomers, vinyl chloride, vinyl acetate or a nitrile monomer. The condensation product B is preferably a urea- or melamine - formaldehyde reaction product etherified with methanol. The compositions may be applied to metal substrates, e.g. of iron, steel, chrome-plated steel, tin-plated steel, aluminium, copper, bronze or brass in forms such as sheets or coils, and also to ceramic and wood surfaces. Application may be by direct-roll, reverse-roll or mandrel coater, or by spray-gun. Curing is suitably effected at 250-350F.
Patent GB-1206949-A (GB)
Title: Fastener pack for use in fastening machines
Inventor: HILLIER MALCOLM EDWARD
IPC: F16B15/08
Filed: 1966-12-16
Abstract: 1,206,949. Fastener packages. GASTON E. MARBAIX Ltd. 1 Dec., 1967 [16 Dec., 1966], No. 56475/66. Heading B8C. Fasteners, e.g. nails 1, are joined in spaced relationship by one or more strips having perforations (not shown) or slits 5 to assist separating when used in a nail gun &c. Two facing pairs of pressure sensitive adhesive tapes may be used with apertures 4 at the leading end for engagement by means in the gun to initiate feed, e.g. as described in Specification 1,206,948. The strip may be coiled or folded in a disposable cartridge having an exit passage 8 fitting a nail gun.  Staples may be attached by one leg only and may overlap along the strip.
Patent GB-1178899-A (GB)
Title: Horizontal Coke Oven
IPC: C10B5/02
Filed: 1967-12-13
Abstract: 1,178,899. Coke oven inspection ports. GOSUDARSTVENNY VSESOJUZNY INSTITUT PO PROEKTIROVANIJU PREDPRIATY KOKSOKHIMICHESKOI PROMYSHLENNOSTI. 13 Dec., 1967 [17 Dec., 1966], No. 56662/67. Heading F4B. In a horizontal coke oven battery of the Coppic type with inspection channels 8 extending through the roof 7 and upper wall portion 6 to each limb of the hairpin heating flues 4, the extreme heating flues 8<SP>1</SP> are of greater crosssection than the inner ones. The cross-section of said channels 8<SP>1</SP> is equal to or less than that of the heating flues and said cross-section is greater in the upper wall portion than in the roof portion.
Patent GB-1275809-A (GB)
Title: Process for preparing an organic isocyanate
IPC: C07C265/00
Filed: 1969-11-21
Abstract: 1275809 Cyanamide-containing catalysts OLIN CORP 21 Nov 1969 [21 Nov 1968] 57068/ 69 Heading B1E [Also in Division C2] A catalyst system comprises either (a) at least one cyanamide compound of the formula: RR'NCN wherein R and R' may be hydrogen, alkyl, aryl, alkaryl, aralkyl, alkoxyaryl, alkoxy, aryloxy, and (b) at least one noble metal halide or oxide; or a complex of (a) and (b). R and R' are hydrogen, C 1 -C 8  alkyl or alkoxy or C 6 -C 10  aryl, aralkyl, alkaryl, aryloxy or alkoxyaryl. Many particular cyanamides and noble metal halides are specified. Noble metals are ruthenium, rhenium, rhodium, palladium osmium, iridium, platinum, silver and gold. The catalyst system may also contain oxides of iron and metals of groups Va and VIa, those specified being V, Mo, W, Nb, Cr, Ta and Fe. The preferred ratio of cyanamide to noble metal halide is between 0.05 and 10. The catalyst may be self-supported or deposited on a carrier, those carriers specified being alumina, silica, carbon, barium sulphate, calcium carbonate, asbestos, bentonite, diatomaceous earth and fullers earth. The examples describe two-component catalysts of Pd, Rh or Ir chlorides plus a cyanamide.