baber/WOPTO huggingface dataset:
Patent GB-1252169-A (GB)
IPC: B60T13/00
Filed: 1969-09-25
Abstract: 1,252,169. Brake valves. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. 25 Sept., 1969 [3 Oct., 1968], No. 47139. Heading F2F.  In a duct circuit fluid pressure braking system in which an emergency brake is spring applied and fluid pressure released, a valve 46 provides for controlled release of pressure to the brake when a leak develops in the system. Fluid pressure is supplied from reservoirs 10, 14 through conduits 18, 19 to the upper and lower halves 20, 21 of a dual pressure brake valve 22 connected respectively via pipes 24, 26 to the rear and front service brakes of a trailer, the rear brake 27 having a chamber 28 and push rod 30 and including a spring operated brake 32 with a release chamber 34. Fluid passes from pipe 24 to a chamber 97 of valve 46 by way of conduit 100 and port 98, and to chamber 34 from reservoirs 10, 14 past a pressure protection valve 16 and a check valve 12, a parking valve 90, inlet port 87 and cavity 52 a centrally located inlet port 60 and delivery cavity 48. A combined inlet and exhaust valve member 64 engages a seat 62 to disconnect cavities 48, 52 and is urged into its closed position by a spring 84 surrounding a sleeve 76 through which extends a plunger 114 having an upper piston 106 and engaging at its lower end a piston 68. In normal operation a manually or hydraulically operated handle 92 opens a valve 90 to admit fluid pressure to chamber 34 to hold the brakes released. On actuation of valve 21 the brakes are operated, fluid pressure also passing to ports 104 and 98 to equalize pressure acting oppositely on pistons 106, 68. When pressure is lost in pipe 24, valves 12, 16 close and if the valve 20 is actuated the combined downward pressure of fluid acting on pistons 106 and 68 being greater than that acting upwardly on piston 68 causes the latter to move downwardly against the action of spring 70 to close off the inlet port 60 and to cause valve member 64 to disengage seat 66 and partially exhaust pressure in line 36 via chambers 74, 78 and port 80. Spring 70 then causes valve 64 to be engaged by seat 66 again to momentarily trap pressure in chamber 34. On further application of the brakes the piston again moves downwardly and the sequence of opening and closing valve member 64 continues to give controlled application of the emergency brakes. In a further embodiment the service pressure is fed to the underside of the upper piston, and in normal operation the inlet and delivery are disconnected and the inlet and exhaust valves are lapped. In this embodiment the lower piston is made responsive to a selected pressure by means of an adjusting bolt urging the spring.
Patent GB-1259043-A (GB)
IPC: E02F9/14
Filed: 1970-03-11
Abstract: 1,259,043. Securing rope in a taper sleeve. NAUCHNO - ISSLEDOVATELSKY I OPYTNO-KONSTRUKTORSKY I N S T I T U T AUTOMATIZATSII CHERNOI METALLURGII. 11 March, 1970, No. 11620/70. Heading D1T. The end of a multi-layered wire rope 1 is held together, e.g. by welding, and the rope is held in a clamp 2 whilst a tapered sleeve 7 is placed over its end. The sleeve 7 contains a soft metal, e.g. copper, gasket 8. A washer 12 is placed over the rope end, which is held together by a flexible strap 11, the welded portion being cut away with an abrasive disc. Conical rings 13 to 18, having wedge-like ribs in their outer surfaces, are successively driven into the rope end by a hydraulic cylinder 20, expanding the rope. Strap 11 and washer 12 are removed, and retraction of piston 19 draws sleeve 7 onto the spread rope end by means of spring-loaded levers 21, squeezing the rope end so that the rings, whose material has a lower yield point than the wire's, deform to fill the interstices between the wires of the rope.
Patent GB-1265342-A (GB)
IPC: F24F6/00
Filed: 1969-02-20
Abstract: 1,265,342. Electrode boiler. FABERGE Inc. 20 Feb., 1969 [20 Feb., 1968], No. 49038/71. Divided out of 1,265,341. Heading H5H. To minimise the risk of electric shock during filling of the electrode boiler 40 of a vaporizer, liquid is introduced into a filling trough 50, is discharged therefrom by an orifice or orifices 52 in the form of discrete drops on to the upper end of an inclined channel 56, 58, flows down the channel 56, 58 and falls from the discharge end 60 in the form of discrete drops into the boiler 40. Liquid droplets from orifice or orifices 52 impinge on a curved fillet 57 of the channel thereby introducing further dis-continuity. The slope of channel 56, 58 is such that the flow rate of the droplets increases so that they spread lengthwise with a consequent reduced cross-section and increased resistance. Vapour is discharged when a spring-closed valve 78, 80, 84 is opened by means of a vapour discharge tube provided with a bayonet fitting which is pushed against the valve when a supply of vapour is desired.
Patent GB-1288511-A (GB)
IPC: G01K5/34
Filed: 1970-09-02
Abstract: 1288511 Remote indicating thermometers M K JUCHHEIM 2 Sept 1970 41924/70 Heading G1D A liquid expansion type remote indicating thermometer has a sensing bulb (not shown) connected by a capillary tube 5 to a capsule 6 the diaphragm wall 6<SP>1</SP> of which carries a bolt or pin 9 which acts on a lever 11 to move a pointer (not shown) on a shaft 15. Lever 11 is pivoted at 13 to a base 3 and is urged against the bolt 9 by a spring 12. The capsule 6 is secured to the base 3 by a screw 7 in a slot, movement in a direction 8 adjusting the transmission ratio of the linkage. A slot in the lever 11 engages a bolt 17 on a gear sector 16 which meshes a pinion (not shown) on the pointer shaft 15. The illustrated assembly is mounted on a single screw (2) on a base-plate (1) Fig. 1 (not shown) so that it can be rotated relative to a scale on the base-plate for zero adjustment.
Patent GB-1290315-A (GB)
IPC: G01L1/02
Filed: 1970-02-19
Abstract: 1290315 Fluid regulation COMPAGNIE DES COMPTEURS 19 Feb 1970 [26 Feb 1969] 8123/70 Heading G3H [Also in Division G1] In a fluid-type indicator which is suitable for detecting the position of a movable element 1, two nozzles 2 and 3 are arranged opposite one another with the element 1 being arranged for movement in the vicinity of the first nozzle 2, The second nozzle 3 is disposed within a chamber 6 whose one wall 5 is formed with an aperture of dimensions slightly greater than those of the jet issuing from nozzle 3. With both nozzles 2 and 3 being supplied from a common line 4 at a pressure Pa, the monitoring pressure Ps available at a port 7 extending from chamber 6 is directly proportioned to the degree of interference between element 1 and the jet issuing from nozzle 2.
Patent GB-1290783-A (GB)
IPC: H01R13/7197
Filed: 1970-01-13
Abstract: 1290783 Two-part couplings BUNKER-RAMO CORP 13 Jan 1970 [22 Jan 1969] 1533/70 Heading H2E In an electrical connector the outer casing of filters 58 contained on contacts 54 are earthed via spring clips 24 to a bulkhead 20 formed integrally with an aluminium casing 10. The spring clips 24 are prevented from moving by flanges 26 and a hard dielectric insert 28. After the contacts 54 are positioned in the casing 10 an insert 12 is screwed into the end of casing 10 and the end pieces 56 of a plastics insert 50 wedge the contacts in place, the end 44 of the shell 40 of insert 12 riding in groove 46 in plastics insert 50. Conductors 60 are connected to contacts 54 and resilient grommets 30, 62 are provided in the casing. A flange 14 is provided on casing 10 for securing it to some external member and a screw thread 16 is provided for connection to the other part of the connector.
Patent GB-1295018-A (GB)
IPC: G03H1/16
Filed: 1971-05-19
Abstract: 1295018 Uses of photochronism NATIONAL CASH REGISTER CO 19 May 1971 [18 June 1970] 15727/71 Heading C4S [Also in Division G2] In forming a hologram an object beam 34 is derived from an object pattern, and a reference beam 35 is derived from a recording 23 of a Fraunhofer diffraction pattern of an encoding pattern 46, the reference beam 35 being directed through a Fourier transform lens 38 on to a recording medium 40 (e.g. a photochromic glass plate) at the back focal plane of the lens where the reference beam interferes with the object beam. Preferably the object beam 34 also passes a Fourier transform lens 36 at the back focal plane of which is located medium 40. The encoding pattern is recorded by illuminating desired elements of pattern 46 with collimated laser light through appropriate shutters 13, 15 of a shatter matrix 12 aligned with the said elements. The Fraunhofer diffraction pattern so formed may be recorded on a photochromic plate 22 where it is illuminated with light from a laser 7. The object pattern 32 preferably consists of a transparent configuration in an opaque background. Using different encoding patterns a plurality of holograms may be superimposed on medium 40. To reconstruct the object pattern a recording of the diffraction pattern of the encoding pattern is formed, which recording is then illuminated to give the readout beam. The hologram is located at the back focal plane of a transform lens and at the front focal plane of a read-out lens in whose back focal plane the image is formed (Fig. 5, not shown). Print-out may be on a heat sensitive paper.
Patent GB-1296410-A (GB)
IPC: G01S13/75
Filed: 1970-09-04
Abstract: 1296410 Radio signalling; transponders MARCONI CO Ltd 2 July 1971 [4 Sept 1970] 42374/70 Heading H4L In a system for locating vehicles in a given area a plurality of radio responders consisting of one or more cavity resonators directly connected to aerials are erected at predetermined positions in the area, the resonant frequencies or frequency radiated from each responder forming an identification signal peculiar to that transponder, and each vehicle has means for transmitting a radio-frequency signal which is swept over the full range of response frequencies available to all the responders and means responsive to the signals received from an adjacent responder in response to the interrogation signal from the vehicle to retransmit them to a base station on a carrier frequency which does not affect the responders. The carrier frequency or other means such as a distinctive modulation or time of transmission may be used to identify the vehicle.
Patent GB-1297776-A (GB)
IPC: B60B29/00
Filed: 1969-12-04
Abstract: 1297776 Trollies for handling vehicle wheels R S PLATT & SONS Ltd 19 April 1971 [4 Dec 1969] 59261/69 Heading B7B A trolley for supporting and lifting vehicle road wheels has arms 3 carrying rollers 4 which support the wheel and permit its rotation for alignment with hubs studs of a vehicle. The arms may be lifted and lowered simultaneously or individually by a lifting screw 11 or hydraulically.
Patent GB-1302529-A (GB)
IPC: C04B41/49
Filed: 1969-04-18
Abstract: 1302529 Treating masonry with alkoxy organopolysiloxanes DOW CORNING Ltd 20 April 1970 [18 April 1969] 19881/69 Heading C3T [Also in Division D1] Masonry is rendered waterproof by applying thereto an organic solvent solution of an organopolysiloxane having the general unit formula wherein R is an alkyl radical, at least 3 %, preferably 8-30%, of the radicals R having 6-20 C atoms, R<SP>1</SP> is a C 1-4  alkyl radical, a is 1À0-1À1 and b is 0-0À5. The polysiloxanes may be prepared by hydrolysis of the corresponding mixture of alkyl trichlorosilanes with a small amount of a dichlorosilane and/or in the presence of an alcohol, or by alcoholysis then hydrolysis of the chlorosilanes. The solution may be applied by brushing, flooding, or spraying, and may include 2-120 wt. per cent of an alkyl silicate and 2-40 wt. per cent of a tetraalkyl titanate (based on the polysiloxane), and preferably contains 1-10 wt. per cent solids. In Examples the adduct from di-isobutylene and HSiCl 3  is hydrolysed alone in water/methanol (Example 1), or with MeSiCl 3  (Example 2) or a methyl chlorosilane mixture (Example 3) in xylene/ methanol/water; in Example 4 hexadecyl trichlorsilane is cohydrolysed with MeSiCl 3  as in Example 2. The products are applied to sand/ cement mortar blocks as 5% solutions in xylene. In Example 5 the product of Example 2 is mixed with ethyl polysilicate and tetraisopropyl titanate (50 : 20 : 5 ratio) and used at 5% total solids in xylene.
Patent GB-1303301-A (GB)
IPC: B64C1/00
Filed: 1970-02-13
Abstract: 1303301 Laminating process DEFENCE SECRETARY OF STATE FOR 19 April 1971 [13 Feb 1970] 6971/70 Heading B5N A method of manufacturing a composite material article in the form of a sandwich structure of metal sheets 53 having bonded between them a layer 51, 52 of fibrous reinforced plastics material comprises securing the end regions of lengths of fibrous reinforcement to a massive backing member, impregnating the reinforcement with uncured or partially cured hot curing resin, interposing a first metal sheet between the backing member and the fibrous reinforcement layer and laying a second metal sheet at the other face of the fibrous reinforcement layer, the backing member having a similar or identical coefficient of thermal expansion as the metal sheets, pressing the metal sheets and the fibrous reinforcement layer together against the backing member and applying heat to cure the resin and to bond it to the metal sheets and removing the sandwick so formed from the backing member, the steps of securing the fibrous reinforcement, impregnating it, and interposing the first metal sheet not necessarily being in the order stated. In an embodiment, a continuous tow 13 of the fibrous reinforcement e.g. carbon fibres, is wound round spaced support bars 12 held in side plates 11 and clamped by plates 14, the assembly being laid on a heated table 16 and impregnated with a diluted hot curing epoxy resin and the tows rolled flat by a heated hand roller 17. The side plates 11 are then removed and the bars 12 carrying the tow 13 are secured in the apparatus of Fig. 3 comprising an aluminium backing member 32 by clamps 33, the dimensions of the apparatus being such that the lengths of tow are tightly stretched, a sheet of aluminium alloy 36 being supported on the backing member 32. A further sheet of aluminium 37 being laid on the tow 13 and the whole overlaid by a weighted pressure plate (not shown) prior to transfer to an oven. The end frames 31 may be provided with means for varying the taughtness of the resin impregnated tow. Glass fibres may be used as a replacement for or in addition to the carbon fibres.
Patent GB-1311768-A (GB)
Title: Cotton reel
IPC: B65H75/14
Filed: 1970-08-28
Abstract: 1311768 Cotton reels G N HUGHES 23 Nov 1971 [28 Aug 1970] 26431/70 Heading B8M A cotton reel of thermoplastics material, e.g. polystyrene, comprises an outer tubular portion 1, an inner tubular portion 2 retained coaxially within the portion 1 by a plurality of longitudinal radial webs 5, an annulus of thermoplastics material 6 joining the tubular portions 1 and 2 at one end and formed integrally therewith, and an initially separate end cap 3 which is interfitted between the tubular portions at the other end thereof to close the space therebetween. The reel is preferably provided with four webs 5 disposed mutually at right angles. The end cap 3 may be in the form of a disc which fits within the portion 1 and abuts the end'of the portion 2. Alternatively, the end cap may be provided with a tubular portion 8 abutting the tubular portion 2. The end cap 3 may be welded or adhesively secured in position. The ends of the tubular portions 1 and 2 receiving the end cap 3 may be undercut to accommodate the cap. The tubular portion 1 is provided with flanges 4 retaining thread wound on the reel, which flanges may be nicked to receive a thread end.
Patent GB-1317798-A (GB)
Title: Contact extraction tools
IPC: H01R43/22
Filed: 1970-06-15
Abstract: 1317798 Tools for removing contacts from electrical connectors HARVEY HUBBELL Inc 15 June 1970 28869/70 Heading B4C [Also in Division H2] An extraction tool 19 for removing a contact 13 from a collet 12 mounted within a bore 11 of an electrical connector 10 by means of abutment surfaces formed on a protrusion 14 and a recess 16 respectively comprises a body having a tubular tip 20 the end 27 of which is slid over the end of the contact to spread resilient fingers 12a, 12b and disengage abutting shoulders 17, 18, a plunger 23 for pushing the contact out of the collet when the fingers are spread out, and shear means 29, 30 interconnecting the body and the tip for shearing the tip from the body when the tip is subjected to an axial force approaching the maximum axial force to which the protrusion on the connector bore can be subjected without breakage. The collet is split to allow it to be sprung in position on the protrusion 14 which is made of rigid but brittle plastics or rubber insulating material. The plunger 23 is made of plastics material with a metal nose 38 and is moved by hand against the action of a spring 43 by means of a knob 40 which is axiallyslidable along the body and provided with radial legs 41 for contacting a collar 36 on the plunger. The tip 20 is made of metal and is held on to the body by a screwcap 32, the shear means being provided by a shoulder 29 on the tip co-operating with a groove 30 in the body. As a further safety precaution, the tip may be arranged to collapse before the shearing force has been reached by providing the portion 28 of the tip with axially-extending ribs and slots 48. A warning device in the form of a clicking signal mechanism 53 may be incorporated in the end cap 51 of the body to indicate the maximum force which should be applied. The plunger collar 36 may also be arranged to shear upon excessive application of the knob 40 and the body itself arranged to collapse upon excessive axial force by the provision of slots 50.
Patent GB-1317960-A (GB)
Title: Vapour degreasing process and apparatus
IPC: C23G5/04
Filed: 1970-07-22
Abstract: 1317960 Vapour degreasing apparatus DOW CHEMICAL CO 22 July 1970 35573/70 Heading C7E Vapour degreasing apparatus comprises a vapour zone housed in a main chamber 1 with means for confining a volatile liquid solvent below the vapour zone, and a heat-exchanger in open communication with the vapour zone; the heat exchanger comprises a surface 14 inclined and adapted to accommodate a falling liquid film comprising contaminated condensate, heating means to re-evaporate volatile solvent from said falling film, and trap means 17 at the lower end of said surface for collecting and removing high-boiling liquid contaminants. In use, degreasing solvent such as trichloroethylene is pumped by pump 18 via 19 to flow down surface 14 which is heated by steam, hot gas or electricity, giving rise to vapour which is confined below level 20 by watercooled tubes 2 and cold wall 4, condensed solvent passing via trough 3 and pipe 5 to separator 6, whence, after removal of water through 7, solvent passes back into vessel 1 through 8. The dirty articles may be dipped into the degreasing solvent or cleaning may be assisted using a spray lance; however, normal cleaning is achieved merely by condensation of vapour on the articles.
Patent GB-1324100-A (GB)
Title: Three phase current control system
IPC: H02M1/08
Filed: 1970-11-19
Abstract: 1324100 Electric furnace control systems KOMBINAT SCHALTELEKTRONIK VEB 19 Nov 1970 55134/70 Heading H2H A system for controlling the currents flowing in the heating elements 2 of an electric furnace 1 which is connected to an A.C. supply RST by way of pairs of reversely connected thyristors Th 1 , Th 2 , comprises a ring counter Z energized by pulses generated by a Schmitt trigger circuit T connected to the A.C. supply, the output of the counter Z being fed to a logic circuit LV by means of which the pair of thyristors Th 2  is controlled directly and the pair of thyristors Th 1  is controlled by way of a delay unit V. The pulses generated by the trigger circuit have the lagging edges thereof coinciding with zero passages of the A.C. supply voltage and a switch G is provided to control the output signals from the circuit LV. A phase shifting element A may be used to control the logic circuit LV.
Patent GB-1334173-A (GB)
Title: Twisted vane heat sink
IPC: H01L23/40
Filed: 1971-06-02
Abstract: 1334173 Bending cutters REDPOINT Ltd 1 June 1972 [2 June 1971] 18683/71 Heading B3W [Also in Division H1] The fins 2 of a heat sink for a semi-conductor device are formed by a series of slits along the edge of a metal blank and are simultaneously twisted to reduce the degree of cross-radiation between fins while minimizing the amount of metal removed from the heat sink. Preferably the fins 2 are then bent out of the plane of the blank, and as shown this may be done on two edges to provide a U-shaped heat sink. Fins 2 may similarly be provided on four or more edges of a heat sink, and two such sinks may be nested together. The fins are formed by placing the blank on two spaced dies having saw-toothed profiles and pressing a mating pair of dies down on to the blank to slit and twist its edges.
Patent GB-1342309-A (GB)
Title: Segregation unit
IPC: B07C5/00
Filed: 1972-01-24
Abstract: 1342309 Sorting by weighing; sorting by gauging AMF Inc 24 Jan 1972 [3 Feb 1971] 3786/71 Headings G1M and G1W Uniformly shaped articles, e.g. cigarettes, to be sorted according to a parameter such as weight, diameter, length, or density, pass singly in succession to means 12 which measures the parameter and emits a signal dependent on the magnitude of the parameter, each article then being transferred to a ramp having doors 50, a respective actuator 52 being operable to open one of the doors 50 dependent on the emitted signal to allow the article to pass through the ramp. The apparatus illustrated separates cigarettes into six weight categories, and counts the number in each category. Each cigarette passes from a hopper 11, via an adjustable width throat having one adjustable wall (30) Fig. 3 (not shown), and a cam-operated gate (33), to the pan 41 of a weigher of the type described in Specification 982091 which produces an electrical signal proportional to weight. A photo-cell 73 detects the cigarette and activates a circuit by which an appropriate one of counters 16-21 is advanced, one counter being for each weight category as measured by the weigher. Arms 42 lift the weighed cigarette from the pan 41 to the top of the ramp, adjacent a gate 55 having an actuator 56. The gate 55 holds the cigarette momentarily to straighten it prior to release down the ramp. Dependent on which door 50 has been opened by the weight signal, the cigarette falls down a labyrinth passage on to a respective one of conveyers 64-69 for transfer to a bin 15. A modified conveyer system Figs 11, 12, (not shown) feeds the cigarettes into the bottoms of the bins.
Patent GB-1342468-A (GB)
Title: Security detection systems
IPC: G08B13/10
Filed: 1969-10-16
Abstract: 1342468 Capacitative alarm transducer CHUBB ALARMS MFG Ltd 18 Jan 1971 [16 Oct 1969] 50957/69 Heading G4N The presence or absence of a body is detected by a pressure sensitive capacitor. The capacitor may comprise two aluminium foil electrodes separated by polyurethane foam 14. In a preferred embodiment, the foam is folded round one electrode 12 and a second electrode 10 is wrapped round the foam. To avoid risk of short circuiting, the foil may be coated with a plastic film such as "Melinex" (Registered Trade Mark) or polythene. In operation a number of pressure senstive capacitors may be connected together in parallel and/or series and a small current is applied to charge the capacitors. If the capacitor separation is changed a voltage surge is produced. This is detected by a circuit comprising an input amplifier, a detector, and an output driver. The detector consists of two complementary connected transistors VT4, VT5, such that an output is produced if the voltage falls or rises. The two outputs are fed to an OR gate comprising transistors VT7, VT6, and then to an inverter stage VT8.