baber/WOPTO huggingface dataset:
Patent GB-1362050-A (GB)
Title: Kickdown unit for an automotive automatic power transmission
IPC: F16H59/20
Filed: 1971-12-16
Abstract: 1362050 Change-speed control NISSAN MOTOR CO Ltd 16 Dec 1971 [18 Dec 1970] 58391/71 Heading F2D A kickdown valve for an automatic transmission on a motor vehicle is arranged in the line supplying governor pressure to a shift-valve and, when operated, produces downshift by reducing the supplied governor pressure below its normal value. Three embodiments are described. In the kickdown valve 10 of Fig. 1 a large land 15 of the valve spool controls an exhaust port 24 from a valve chamber connecting a line 18 supplying governor pressure Pg to a delivery line 20, leading to the shiftvalve, under the influence of downward bias by a spring and governor pressure acting on the differential land 15, against upward loading of delivery pressure 20, acting, through a restricted passage 23 in a lower part of the chamber having a controllable exhaust nozzle 25. With the nozzle 25 open, governor pressure Pg passes freely to delivery 20, producing a normal governor pressure curve (a, Fig. 2, not shown), at the shift-valve. Energizing a solenoid 26, by kickdown, closes the exhaust nozzle 25, providing an upward load on the spool, which now regulates to provide a lower pressure governor curve (b) lying below the normal curve. In Fig. 3 (not shown), the bias spring is arranged between the spool lands abutting a shoulder in the valve body. In Fig. 4 (not shown), the spool has a third and lower land equal to the large land 15, the space therebetween being connected to auxiliary supply and delivery passages. The shift valves respond to governor (output speed) pressure and engine intake depression or throttle setting.
Patent GB-1125267-A (GB)
Title: Improvements in temperature sensitive devices
IPC: G01K5/44
Filed: 1966-12-30
Abstract: 1,125,267. Temperature sensitive devices. J.E. LINDBERG. Dec.30, 1966 [Jan. 14, 1966], No.58392/66. Heading G1D. A temperature sensitive device having an elongated wire-like temperature sensing member 22 comprises a rod-like support member 20, the sensing member being wound helically round the support member. The invention is particularly described with reference to fire-detectors in aircraft, and the support member may be of any desired section, solid or tubular and may be of metal in which case a heat insulating coating 21 is provided or of a heat insulating material. The pitch of the helical windings may be even or made smaller at certain points where fire is more likely to occur. In order to protect the sensing member 20 a protecting wire of larger diameter than the member 22 may be wound on the support member 20 between the windings for the sensing member or over the sensing member in the opposite direction. Alternatively, the support member 20 may be grooved to accommodate the helical windings of the sensing member 22, and in another arrangement the sensing member may be helically wound before winding on the support member 20. Arrangements are also described for clamping the device at support points and for connecting the sensing member 22 at the ends of the support member.
Patent GB-1283938-A (GB)
Title: Improvements in the production of tobacco foils
IPC: A24B15/12
Filed: 1969-12-03
Abstract: 1283938 Reconstituted tobacco HENKEL & CIE GmbH 3 Dec 1969 [4 Dec 1968] 58925/69 Heading A2C Tobacco dust or a water-based paste thereof is mixed with an aqueous solution of methyl cellulose which contains 0.05 to 2.5 carboxymethyl groups per anhydro-glucose unit so as to form a shapeable mass which can be formed into a film or foil and dried. Wet-strength improvers such as tannins or divalent aldehydes, softeners such as polyhydric alcohols, and fillers such as kaolin, bentonite &c. or fibres of tobacco, cellulose or glass, may be added. In an example, commercial methyl cellulose, with 1.7 methoxy groups per anhydroglucose unit, is moistened with caustic soda liquor and neutralised monochloroacetic acid and the mixture stored for 20 hours at 60‹C after which it is diluted with water together with magnesium oxide, potassium nitrate and aqueous glyoxal solution and allowed to stand at room temperature for 16 hours. The resulting solution is mixed with a water-based paste of tobacco dust, phosphoric acid being added to adjust the pH value to 5, and a layer of the mixture is spread on a stainless steel sheet and dried at 100‹C.
Patent GB-1372266-A (GB)
Title: Wire-rope with permanently lubricated core
IPC: D07B1/16
Filed: 1971-12-22
Abstract: 1372266 Core ropes; lubricating; anti-vibration arrangements BETHLEHEM STEEL CORP 22 Dec 1971 [24 Dec 1970] 59675/71 Heading D1T A rope has a wire core 55 of single or multi-strand construction, containing a lubricant, a flexible plastics jacket 59 surrounding the core and retaining the lubricant, and a plurality of wire strands 53 laid on the jacket. The jacket 59 may be an impervious sheath 61 and/or a dense layer 63 of fibres, e.g. braided filaments, and may be made of nylon, polyethylene or polypropylene. It serves to prevent transmission of vibration through the rope as well as to retain the lubricant, and may surround the core either tightly or loosely.
Patent GB-1363439-A (GB)
Title: Set of question-carrying media for use with an apparatus for p laying an educational game
IPC: A63F9/18
Filed: 1971-04-19
Abstract: 1363439 Question-and-answer apparatus W HESENER 19 April 1971 [31 March 1970 29 May 1970] 59909/73 Divided out of 1363436 Heading G5G The subject-matter of this Specification is substantially identical with that described in Specification. 1,363,436. The claims relate to a set of question-and-answer carrying media for use with the apparatus described.
Patent GB-1273617-A (GB)
Title: Film structure having undulating surface
Inventor: WHITFIELD HAROLD BARNARD JR
IPC: B29C48/30
Filed: 1969-12-09
Abstract: 1,273,617. Film with undulating surface. E. I. DU PONT DE NEMOURS & CO. 9 Dec., 1969 [10 Dec., 1968], No. 60063/69. Heading B5B. A biaxially oriented thermoplastics film is disclosed, characterized by one undulating surface, the wavelength and amplitude of the undulations being such that the ratio of wavelength to amplitude is less than 2000/1, and preferably between 500/1 and 1500/1. The film is made by the extrusion of molten thermoplastics material through an orifice having one serrated lip on to a cooled quench drum and biaxially orienting the film 2.5 to 5 times in each of two mutually perpendicular directions in the plane of the film. Preferably the serrated extrusion lip has from 50 to 500 serrations per inch and each serration has a depth of from 1 to 10 mils. The amplitude of the undulations may be less than 10% of the total thickness of the film. In a preferred method, the depth and number of serrations on the extrusion lip and the degree of orientation are adjusted to produce a film having the desired ratio of wavelength to amplitude on the surface thereof. Up to 1200 parts per million of particulate filler preferably calcium carbonate, but alternatively silica or lithium hydride, may be added. Pigments may also be added. Examples illustrate the production of such films from polyethylene terephthalate using hopper lip serration dimensions of radius 1 mil, height 4 to 9 mils, width 4 to 14 mils and number per inch 56 to 112. The films are stretched from 2.6 to 3.2 times in each direction, giving surface undulations with a height of 0.015 to 0.040 mils, a wavelength of 32to 65 mils, and a wavelength to amplitude ratio of 750 to 2670. A control film with no undulations is also made. The winding slopes of the examples vary from 135 to 237.
Patent GB-1293177-A (GB)
Title: Improvements in or relating to removal of at least one constituent from a gas mixture by selective absorption
Inventor: RANKE GERHARD
IPC: B01D53/18
Filed: 1969-12-10
Abstract: 1293177 Gas separation LINDE AG 10 Dec 1969 [11 Dec 1968] 60236/69 Heading B1L In the removal of a constituent from a gaseous mixture by means of a solvent the gaseous mixture is passed upwardly through a plate column 6 in countercurrent to a solvent and the heat of solution is at least partly removed by withdrawing the gaseous mixture at 7 below a plate, passing it through coolers 8 and 9 and returning it to the column above the plate. The gaseous mixture is cooled by indirect heat exchange with cold solvent withdrawn from the column 6 for regeneration in a column 16 after being cooled in a refrigerator 11. In one application H 2 S and CO 2  are removed from a hydrogen containing gas by means of methanol at a low temperature the gaseous mixture withdrawn at 7 having a temperature of -20‹C and the returned cooled gas has a temperature of -45‹C. In an alternative embodiment the withdrawn gaseous mixture is passed through a liquid separator after passing through the coolers 8 and 9 before being returned to the column 6.
Patent GB-1240507-A (GB)
Title: Fire resisting doors having metallic outer layers
IPC: E06B5/16
Filed: 1968-12-19
Abstract: 1,240,507. Fire resisting doors. BADISCHE ANILIN-& SODA-FABRIK A.G. 19 Dec., 1968 [20 Dec., 1967], No. 60333/68. Heading E1J. A fire resisting door has a frame work 1 of cement bound asbestos members with stiffening members 2 of strips of hardboard or wood-base material arranged crosswise to form cells and at least one thermally insulating layer 5 of cement bound asbestos and/or of alkali or sodium, silicate boards 6 containing glass fibres and water and which expand at temperatures above 250‹C and an outer metallic layer 7 of sheet steel or aluminium covering the layers 5 and/or 6 and secured thereto by an organic adhesive which looses its bonding properties to destroy the joint under the action of heat at temperatures of 60‹ to 400‹C e.g. epoxide resin and/or polyvinyl acetate and/or a copolymer of ethylene and vinyl acetate and/or acrylic ester, or by screws or rivets made of organic material such as mentioned above, or of Wood's metal or aluminium, or wood which are destroyed at the temperatures specified above, the edges of the door being covered with strips 8 of U- section aluminium. The gap between the strips 8 and the sheet steel plate 7 is filled with silicone rubber.
Patent GB-1372109-A (GB)
Title: Electromagnetic flaw detector
IPC: G01N27/90
Filed: 1971-12-30
Abstract: 1372109 Electromagnetic flaw detectors CANADIAN INDUSTRIES Ltd 30 Dec 1971 [21 Jan 1971] 60728/71 Heading G1N Flaws due to magnetic or non-magnetic inhomogeneities in electrically conducting material such as tube 7 are determined by detecting inphase components or quadrature components respectively of the signal induced in a pick-up winding 3 when an excitation winding 1 is energized. The pick up winding 3 is connected with reference pick up winding 4 and potentiometers 5,5A in a bridge circuit the output of which after amplification is applied to a phase sensitive detector including switching transistors 36, 37 and 38, 39. The transistor pairs alternately are rendered conducting in synchronism with the changing amplitude of the current in excitation coil 1 by means of transformer 40 connected to the excitation winding source via switch 41. With the switch 41 in the position shown the in-phase component is detected which after smoothing and amplification is applied to meter 56, earphones 67 or loudspeaker 68. When the switch 41 is connected to capacitor 42 the quadrature component is detected and applied to the meter &c. Calibration. For magnetic flaws a magnetic test ring is placed inside an undamaged section of a tube and the coils placed distant therefrom. With switch 41 in the in-phase position potentiometer 5 is adjusted so that meter 56 reads zero. The coils are then moved adjacent the test ring and the gains of amplifiers 14 and 50 adjusted by resistors 26 and 55 until the meter 56 reading is 50% full scale and variable resistor 66 adjusted so that an audible output is obtained from headphones 67 or loudspeaker 68. For non-magnetic flaws a tube containing known fissures or cuts is used and resistors 26,55 and 66 altered to give correct meter deflection and sound.
Patent GB-1369610-A (GB)
Title: Arrangement for packing debris in an underground mine
IPC: B65G47/76
Filed: 1972-11-10
Abstract: 1369610 Mining conveyers COAL INDUSTRY (PATENTS) Ltd 10 Nov 1972 [31 Dec 1971] 60944/71 Addition to 1232182 Heading B8A [Also in Division E1] The goaf-packing assembly of referred to Specification 1,232,182 is modified by providing the deflector 2, that is movable to and fro along the conveyer 1 for diverting debris from the conveyer and packing the debris where desired in a mine working, with a conveyer-contacting wiper 20 that is mounted on the deflector for movement, preferably vertically, relative to the deflector. Other vertically movable conveyer-contacting wipers may be mounted within the body of the deflector 2 and on a fixed deflector at the discharge end of the conveyer. The conveyer, which is mounted on skids 5, has debris-carrying slats connected between parallel endless driven chains, the slats being either hollow and wedge shaped in a vertical plane parallel to the longitudinal centre axis of the conveyer or have stepped sides and are bolted to cross-bars secured between the driven chains. Both forms of slats ensure that the conveying surface of the conveyer is substantially continuous whilst allowing of satisfactory passage of the slots around the drive and idler sprockets of the conveyer.
Patent GB-722144-A (GB)
Abstract: 722,144. Turning-gear. INNOCENTI SOC. GENERALE PER L'INDUSTRIA METALLURGICA E. MECCANICA. July 17, 1952 [July 17, 1951], No. 18120/52. Class 7 (5). In a spring-powered engine-starter comprising a spring 1 arranged about one end portion of a rod 3 that is actuated for starting purposes by expansion of the spring, and the rod 3 having a rack 4 at its other end which through speed-multiplying gears such as a pinion 6, a toothed segment 5 and pinion 12, acts on the crankshaft (not shown), a locking member 8 is positioned adjacent the other end of the rod for co-operating with the rack and is directly or remotely controlled by a lever 9 at the time of starting whilst a foot or hand actuated gear 7 is provided to compress the spring. Upon operating the lever 9 either directly or through a cable, for example, the locking member 8 is released and permits the compressed spring 1 to move the rack 4 and so through gears 5, 6 and 12 to rotate a shaft 10 bevel geared to the crankshaft ; the gear 12 has a one-way connection with the shaft 10. After complete expansion of the spring 1 the sector 5 no longer meshes with the gear 12 so that the latter can freely rotate. The spring is re-stressed through a reduction gear comprising the segment 5 and the gear 7, the latter being actuated by a handle or pedal 11 ; the member 8 automatically engages the rack immediately the spring has been compressed.
Patent GB-2001062-A (GB)
Title: Preparation of Pyridinecarboxylic acid piperazides
IPC: C07D213/81
Filed: 1978-06-28
Abstract: Piperazides, having the general formula I   <IMAGE> and their acid addition salts, wherein R<1> is a methyl or a benzyl group are prepared by reacting a compound of the general formula IV   <IMAGE> wherein R is alkyl of 1 to 3 carbon atoms with a substituted piperazine of the general formula V   <IMAGE> The compound of general formula IV may be made by reaction of a salt of pyridinecarboxylic acid with an alkyl chloroformate and can be used without isolation.
Patent GB-2000576-A (GB)
Title: Pivotally mounted automatic firearm
IPC: F41A9/54
Filed: 1978-06-30
Abstract: An automatic firearm pivotally adjustable through a large angle for sighting purposes and having a feeding device for feeding an ammunition clip (6) from a magazine (7) to a feed window (2) of the firearm. The feeding device comprises a first transfer gear (8) which transfers the clip (6) from the magazine to move in a first plane perpendicular to the pivot (3) of the firearm, a second transfer gear (11) which reverses the movement of the clip (6) to move the latter in a second plane perpendicular to the pivot (3) of the firearm, and a third transfer gear (12) which transfers the clip (6) from the second plane to the feed window (2). The first transfer gear (8) occupies a fixed position relative to the magazine (7) whereas the third transfer gear (12) is fixed to the firearm for movement therewith. The second transfer gear (11) is pivotally adjustable in order to vary the lengths of the runs of the clip (6) in the first and second planes so as to compensate for the pivotal adjustment of the firearm. To this end, the second transfer gear (11) is coupled via an arm (13) and a differential transmission (14) with the pivot (3) so that pivotal adjustment of the firearm through a given angle in either direction is accompanied by pivotal adjustment of the second transfer gear (11) in the same direction but through one half of the given angle. <IMAGE>
Patent GB-2007180-A (GB)
Title: Non-pivotal Modular Conveyor Belt and Modular Links Therefor
IPC: B65G15/30
Filed: 1978-08-24
Abstract: The present disclosure is directed to a non-pivotal modular conveyor belt and modular links therefor wherein a belt is made up of modules 20, 20A interfitted and joined by a non-pivotal connection 26 passing laterally through adjacent interfit modules at their ends and wherein the module has a flexible member 23, jointing a pair of link ends. When assembled with the nonpivotal connection through the interlocked link ends with the adjacent flexible members in abutting relationship the point of abutment of the flexible members may be fused so that there is no open joint into which foreign matter may enter requiring cleaning. <IMAGE>
Patent GB-2013137-A (GB)
Title: An Electro-Photographic Copying Machine
IPC: G03G15/00
Filed: 1978-12-22
Abstract: In an electrophotographic copying machine the recording sheet feeding means (7) is reciprocable in a plane parallel to a stationary flat photosensitive member (13) between a remote position and a position overlying the member (13). An optical system (1) is similarly reciprocable between a remote position and a position where it reflects light from the original (12) onto the photosensitive member (13), the sheet feeding means being moved concurrently with the optical system but at a different speed. Developing means (15) is located below the path of the sheet feeding means (7) and is located in substantially the same plane as the photosensitive member. The photosensitive member (13) is preferably a grid, the image transfer to the recording sheet involving ion projection. The machine is compact and of simpler design than those with rotary photoconductive drums and simplifies registration in multi-colour copying. <IMAGE>
Patent GB-2017507-A (GB)
Title: Automatically controlled device for the inhibition of birth pain
IPC: A61B5/03
Filed: 1979-03-29
Abstract: The pulse amplitude produced by at least one pulse generator 1 in an automatically controlled device for relieving labour pains by transcutaneous electrostimulation is automatically adjusted in dependence on the output of a cardiotocograph 4 used to measure uterine contraction and/or on the output of an electromyograph 6 measuring the labour pain caused by the uterine contraction by measuring potentials at muscles reacting to the labour pain. The muscle potentials with and without stimulation may be periodically compared and the stimulation level controlled in response thereto by a computer programmed with the optimum relationship between the sensation of pain and the stimulation intensity. <IMAGE>
Patent GB-2024517-A (GB)
Title: An improvement in Electrical Switch
IPC: H01H9/38
Filed: 1979-04-10
Abstract: The specification describes an electrical switch in which movable and stationary contacts of the switch are provided integral with respective contact-bearer bars, and in which the contact-bearer bars are so shaped and located such that between the end portion of one and the end portion of the other, during the opening of the contacts a gap less than the contact gap occurs. The arrangement of switch is such that the electric arc is ignited between the end portions and does not effect the contact surfaces or the remaining components of the switch. The bar carrying the stationary contact may be provided at its free end portion with a segment to "encircle", without contacting, a segment provided on the free end portion of the bar bearing the movable contact. <IMAGE>
Patent GB-2021650-A (GB)
Title: Process for dyeing synthetic polyamide fibres and polyurethane fibres
IPC: D06P3/24
Filed: 1979-05-15
Abstract: To dye synthetic polyamide fibres and polyurethane fibres with after-chroming dyestuffs, after absorption of the dyestuff the fibre is treated with a chroming agent in a molar ratio of dyestuff: chromium of 3 to 1.5:1 in the absence of water- soluble acids and/or salts with phosphorus, sulphur and/or chlorine in the anion. The chroming agent may be potassium dichromate.
Patent GB-2021781-A (GB)
Title: Device for measuring the spacing between two floating bodies
IPC: B63B49/00
Filed: 1979-05-15
Abstract: A device is disclosed for the measurement of the spacing between two floating bodies (1,2). One floating body (2) is provided with transmitting and measuring equipment (4), (5), each with a transmitter (6) for the radiation of alternating magnetic fields in the audio- frequency range. The transmitted field causes eddy currents and alternating fields in the other floating body (1), which are detected by a detector (8) with directional characteristics which render it insensitive to the transmitted field. The magnitude of the amplitude of the received alternating fields is indicative of the spacing between the floating bodies. The results are processed for automatic regulation of the spacing. <IMAGE>
Patent GB-2025073-A (GB)
Title: Apparatus for Monitoring the State of an Electrical Circuit
IPC: G01R23/15
Filed: 1979-06-22
Abstract: Apparatus for monitoring the state of a first circuit (19) by means of a second circuit (29) has an inductive coupling (23) linking the circuits across a gap (32). The second circuit embodies an oscillator (27) producing primary oscillations in that circuit and, through the coupling, secondary oscillations in the first circuit (19). If the state of the first circuit (19) is changed as by opening or closing of contacts (17, 18) the resulting change in the impedance of the first circuit results in a change in the frequency of the primary and secondary oscillations. The second circuit (29) is connected to a detector (35) producing a signal (37AI) when the frequency changes. Instead of an inductive coupling, a capacitative coupling may be used. The apparatus is described as applied to a machine for measuring length. The first circuit (19) is embodied in a probe (12) whereby the machine contacts a workpiece to be measured. The first circuit is opened by such contact. The second circuit (29) is embodied in a head on which the probe is releasably mounted. Since the first circuit (19) is a passive one, the probe does not need an independent power supply, and a power supply in the head serves any one such probe that may be mounted on the head. <IMAGE>
Patent GB-2056371-A (GB)
Title: Ink unit for offset printer
IPC: B41F31/02
Filed: 1979-08-15
Abstract: An ink unit for an offset printer includes a duct roller (9), and, in place of the usual ink trough, a surface (26) which is generally planar and parallel to a tangent to the duct roller (9) but closely spaced from the surface of the duct roller. Ink is supplied to the working gap between the duct roller (9) and the surface (26) by means of supply ports fed from an ink pump, in this case a can having a barrier member which is driven along the can towards a closed end thereof to expel ink through a central opening of the barrier member.   <IMAGE>