baber/WOPTO huggingface dataset:
Patent GB-817545-A (GB)
Title: Improvements in or relating to fluid pressure responsive indicator devices
Inventor: MITCHELL ALEXANDER
IPC: B60Q1/44
Filed: 1956-06-09
Abstract: 817,545. Brake indicators. VAUXHALL MOTORS Ltd. May 10, 1957 [June 9, 1956], No. 17886/56. Class 103 (1). [Also in Group XXXVIII] A fluid pressure-responsive indicator device comprises an indicator member in the form of a pivoted lever biased to a visible or concealed position by a snap-action spring, the member being connected to a diaphragm to which the fluid pressure is applied and also being movable against the bias to the concealed position in response to fluid pressure differential relative to atmosphere above a predetermined value. As shown, an indicator lever 1 is pivoted at 3 and its movement about the pivot is controlled by a secondary pivoted lever 20 having a lost-motion pin and slot connection at 32, with a link 21 connected to diaphragm 22 in a casing 24. Lever 20 pivots on a pin 34 and in the normal position face 30 of slot 28 engages the pin 29 on lever 1, being urged into contact by over-centre springs 37 attached to lever 20 at 36 and to the bracket 4 at 38. When the vacuum in chamber 24 which communicates with a vacuum servo assisted braking system decreases, spring 25 expands and pushes diaphragm 22, link 21 and trunnion 32 towards the right, the latter moving in slots in the lever arm 27 (Fig. 4). When the pressure differential. exceeds some predetermined value the trunnion will force the lever arm and lever 20 clockwise against the tension of springs 37 until pins 36, 34, and 38 are in line, whereafter the rotation of the lever is aided by the tension in the spring, giving a snap action. Lever 20 comes to rest against a stop 39. This movement of the secondary lever causes pin 29 to be engaged by face 31 of slot 28 and lever 1 is caused to rotate about its pivot 3 into the warning position (vertical in this case). Lever 20 finally comes to rest against a stop 39 (Fig. 6).
Patent GB-613270-A (GB)
Title: Improvements in or relating to mercury displacement switches
IPC: H01H29/18
Filed: 1946-06-14
Abstract: 613,270. Mercury switches; magnetic switches. ELECTRICAL STEAM & MINING EQUIPMENT (LONDON), Ltd., and WEBB, E. F. D. June 14, 1946, No. 17931. [Class 38 (v)] In a switch wherein the movement of a permanent magnet 15 causes corresponding movement of an armature 11 floating in mercury in a sealed envelope 10, spaced members 12, 13 of non-permanent magnetic material are arranged so as to be opposite to the poles of to magnet, when it is moved into the operating position " b," Fig. 1. In this position, the magnet attracts the armature 11 into the position shown. When the magnet 15 is in position " a," both poles are opposite to the sleeve 13 which provides a closed circuit for the flux so that the armature 11 is unaffected and returns to its floating position. The polepieces of the magnet 15 are preferably ground concave to conform to the tube 14 of non-magnetic material. The opposed ends of the sleeves 12 and 13 may be chamfered from the outer to the inner radius in order to concentrate the flux as near as possible to the armature. Also the magnet 15 may be of tubular form to surround the tube 14.
Patent GB-1117196-A (GB)
Title: Cylinder lubrication of engines with separate cylinder and crankcase lubrication
IPC: C10M159/20
Filed: 1966-04-25
Abstract: A cylinder lubricant for engines with separate cylinder and crank-shaft lubrication comprises one or more lubricating oils, a dispersed alkaline earth metal salt and/or hydroxide and at least one oil-soluble polymer having carboxyl groups, carboxylic anhydride groups, hydroxyl groups, epoxy groups and/or nitrogen-containing groups, which polymers may be considered to result from polymerization of olefinically unsaturated compounds. Alkaline earth metal salts specified are carbonates and those of aliphatic and aromatic carboxylic acids and hydroxycarboxy-lic acids and aliphatic and aromatic sulphonic acids; naphthenates being preferred.  An exhaustive list of suitable polymers is given which embraces polymers derived from vinylpyrollidones and pyridines, acrylates and methacrylates.  The base oil may be a refined naphthenic oil.
Patent GB-1068184-A (GB)
Title: Improvements in travelling cranes
IPC: B66C6/00
Filed: 1964-05-01
Abstract: 1,068,184. Travelling cranes. BABCOCK & WILCOX Ltd. May 1, 1964 [May 3, 1963], No. 18099/64. Heading B8B. A travelling crane has a boom framework comprising a tubular upper member 1, Fig. 1, and a lower member 2 forming a trackway for the hoisting device 54. Extensions 64 at the ends of the boom 1 are welded to support members 5 comprising parallel spaced beams adapted to receive driving and idler rollers (10), (11), Fig. 2 (not shown), running on fixed trackways 17. The end joints may be reinforced by welded gussets 13, 13a. In a modification, Fig. 4 (not shown), the upper tubular-member (31) is separated from the lower beam but is welded thereto by vertical gussets (31), end sections (36) of the tubular member being inclined downwards for welded connection to the lower beam (32) and to the wheeled support members (5).
Patent GB-1428655-A (GB)
Title: Sliding panel constructions
IPC: E05D15/36
Filed: 1972-04-19
Abstract: 1428655 Up-and-over window INTERNATIONAL HARVESTER CO OF GREAT BRITAIN Ltd 18 April 1973 [19 April 1972] 18157/72 Heading E1J An up-and-over window for e.g. a tractor cab includes two spaced pairs of rollers 24 guided in L-shaped, channel sectioned tracks 10, each pair of rollers being mounted at opposite ends of a rotatable bar 19 with the axes of rotation of the rollers being offset from the bar's axis of rotation whereby, when the bar is rotated about its axis into a displaced position, the panel is urged into contact with fixed abutments against the inherent resilience of the components whereby to frictionally hold the panel in position relative to the track. The window has a raised rubber surround engageable, in the open position, with abutments on the cab's roof and, in the closed position, with resilient flanges 14 on the window aperture's surround. The bar 19 is held in its rotated position by means of a spring-loaded finger 36 engageable with flat lands on the bar.
Patent GB-639575-A (GB)
Title: Improvements in and relating to the uniting of polythene and like substances with other materials
Inventor: MILDNER RAYMOND CHARLES
IPC: H01B3/44
Filed: 1947-07-09
Abstract: <PICT:0639575/III/1> A method of uniting a polythene body to a metallic or other surface comprises the application of a thin film consisting solely of polythene to the surface and then welding the body of polythene to the film.  In one application, the jointing of a polythene insulated cable 1 to another cable 6, comprises the steps of stripping the serving 4 and the armouring 3 of the cable 1, inserting a metal tube 9 into the armouring, and providing it with an internal polythene film 10 and a nozzle 14 through which is injected a polythene filling to be welded to the insulation of the cables. The joint is protected by a box 11 which is plumb-joined at 13 to the tube 9 and the sheaths 8 of the cable 6. For a straight joint, Fig. 2 (not shown), the metal sheath of one cable is covered with a polythene film and a body of polythene is applied to this and replaces the joint box.  The polythene may either be pure or mixed with other polymerized hydrocarbons such as polyisobutylene.
Patent GB-772959-A (GB)
Title: Improvements in or relating to hoists
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B66D3/24
Filed: 1954-06-22
Abstract: 772,959. Hoists. KING, Ltd., G. W. June 22, 1955 [June 22, 1954], No. 18223/54. Class 78 (5). A rope feed control device for application to a power-operated hoist, comprises means 20, 23 movable in dependence upon the tension of the rope A, and a member 30 adapted on movement of said means resultant upon slackening of the tension in said rope to effect actuation of a switch 26 thereby to cut off the drive to the hoist or the like. As shown, hoist rope A is threaded between sheaves 20, 23, 25 carried by linkage 21, 22 so that, if the rope slackens, the consequent movement of the linkage causes counterbalance arm 15 to pivot about 14 so that abutment 30 operates switch 26 to cut off the drive to the hoist. Similarly, the apparatus acts as an upper end-stop, an abutment on rope A contacting and lifting arm 15 so that abutment 31 operates switch 27 to cut off the hoist motor.
Patent GB-1433611-A (GB)
Title: Electric power generating plant
IPC: G05B17/00
Filed: 1973-04-16
Abstract: 1433611 Automatic control systems WESTINGHOUSE ELECTRIC CORP 16 April 1973 [24 April 1972 25 April 1972 26 April 1972] 18237/73 Heading G3R Steam valves in an electric power generating plant are controlled by a position reference signal digitally derived in response selectively to any of the following control loops:-speed (by analogue or digital signals) impulse chamber steam pressure, or megawatt output, and the invention is concerned with "bumpless" transfer from one control loop to another by calculating and applying a new reference value such that after change over the control signal will have the same steady state value as it had before change over. Details of the calculations for various combinations of transfer are given.
Patent GB-1220433-A (GB)
Title: Piezoelectric resonators
IPC: H03H9/13
Filed: 1969-04-09
Abstract: 1,220,433. Piezo-electric resonators. THOMSON-CSF. 9 April, 1969 [11 April, 1968], No. 18269/69. Heading H1E. In order to damp the third overtone mode of an X+5 cut piezoelectric plate resonator of rectangular form, the electrodes on one side of the plate are symmetrically truncated. The major surfaces 1 of the plate are perpendicular to the X axis of the crystal and the longitudinal dimension L lies at an angle of between 0 and + 7 degrees to the Y axis. Such a plate resonates in an extensional mode. The aspect ratio l/L lies between 0À07 and 0À2. It is known to eliminate the 5th and higher overtones by using the electrode configuration 2, Fig. 1, bounded by two arcs of equal radius which are tangential to the longer sides and intersect at the shorter sides. According to the invention, the electrode 2 on the opposite side (Fig. 2) of the plate is terminated symmetrically at a distance d#L/10 from the shorter sides.
Patent GB-1431044-A (GB)
Title: Method and apparatus for treating wire rod
IPC: B05C3/12
Filed: 1972-04-20
Abstract: 1431044 Coating wires ABRASIVE DEVELOPMENTS LTD 29 May 1973 [20 April 1972] 18289/72 Heading B2E [Also in Divisions B3 and D1] A method of coating a wire rod with a liquid which acts as a lubricant during a wire drawing step and/or helps to retain a drawing lubricant on the rod comprises abrading the rod to clean its surface, passing the cleaned rod through a coating chamber (see Division D1 for details), having inlet and outlet apertures for the rod dimensioned such that coating liquid within the chamber can escape therethrough, drying the coated rod and then drawing down the rod to a required dimension. The coating liquid may produce a conversion coating of e.g. a phosphate, chromate or oxalate on the surface of the rod or may be an adherent coating, e.g. lime. Before abrading the rod may be passed through a scale breaker and after coating it may be air-doctored and washed before the drying step and lubricated in a soaping 'box before the drawing step.
Patent GB-296168-A (GB)
Title: Leaves or sheets divided into detachable portions such as form slips and tickets
IPC: B41L1/24
Filed: 1927-07-11
Abstract: 296,168. Ashbee, G., Beatson, W., and McLay & Co., Ltd., A. July 11, 1927. Books with tearout portions. - In books, stationery, and the like of the type in which the leaves or sheets are divided into detachable portions such as form - slips and tickets, one or more horizontal slits d extend from one or more points, near the vertical edge right through towards the binding of the book, stopping short of a line of vertical slits d adjacent to the bound edge, thereby leaving uncut portions e which enable the page c to be turned as a whole for the insertion beneath it of a carbon paper. The book may be provided with uncut pages b Specifications 9843/98 and 9389/04 are referred to.
Patent GB-827785-A (GB)
Title: Improvements in furniture and like castors
Inventor: ATKINS LAURENCE
IPC: B60B33/02
Filed: 1957-06-11
Abstract: 827,785. Castors. HOMA ENGINEERING CO. (COSBY) Ltd. June 10, 1958 [June 11, 1957], No. 18389/57. Class 52(1) A swivel lock for a castor consists of a split ring 13 on the yoke head expanded within a skirt 6a on the fixed part of the castor mounting. The ring is expanded by a conical pin 16 actuated by a pedal 8 rotatable on a screw 12. A blade spring 18 serving simultaneously to brake the castor wheel 3 may be provided and limit stops 21 which contact the wheel tyre may be carried by the pedal. Specification 719,166 is referred to.
Patent GB-313325-A (GB)
Title: Method and apparatus for casting ceramic pieces
IPC: B28B3/00
Filed: 1928-06-25
Abstract: 313,325. Austin, A. O. June 25, 1928. Moulds ; processes.-Ceramic articles are produced by depositing slip about a yielding core adapted subsequently to be removed from the formed article. The core, which is of a definite shape, may comprise a central support and a covering of yielding material. As shown, a two-part mould, consisting of porous mould sections 11 backed with metal 13, is furnished with a core comprising a central tube 16 covered with wax portions 17, 18 in turn covered with shaped rubber envelopes 19, 20. A flange 22 locates the core. Slip is introduced through the core via apertures 24; alternatively, or in addition, it may be introduced through feed tubes 25 in the mould. After filling the mould, pressure is applied through the tube, 16 and openings 26 to expand the members 19, 20 to drive off excess water and compact the material. The wax layers 17, 18 are softened by passing steam &c. through the tube 16 or by electrical heating, and the tube 16 is withdrawn. The envelopes 19, 20 may remain in the article during drying and are removed by stretching. The members 17, 18 also may be made of rubber.
Patent GB-183963-A (GB)
Abstract: 183,963. Macnamara, C. M. May 25, 1921. Draught, inducing ; s m o k e, preventing ; baffles ; grates. - To effect complete combustion and prevent smoke in stoves, ranges, &c. the gases are drawn through flues in a slab of refractory material by a fan. In the range shown, a block of refractory material d with passages e is arranged at the rear of the grate and in front of a boot boiler c, the toe c<1> of which fits into an opening in the block. The passages e lead to flues f on each side of the boiler, which communicate with the chimney g and also with down-flues h leading to below the grate. Fans i, connected by a chain drive i' and rotated by a handle i<2> or other means are located within the flues. On starting a fire, the chimney damper g<1> is closed and the fans i rotated to draw the gases through the passages e, up the flues f and down the flues h to be returned to the fire. When the block d is incandescent the fans are stopped and the damper g<1> opened. In a modification, in which the flues f, h are dispensed with, the space behind the block is enclosed by a casing in which is a fan for causing the circulation of the gases, there being a damper which allows the gases to pass to the chimney when the fan is stopped. The refractory blockmay be capable of adjustment towards and from the back of the grate. Fig. 5 shows a block having a second series of passages o<1> crossing the passages o, and Fig. 5a a block having tubularpassages v moulded in or secured to it.
Patent GB-712114-A (GB)
Title: Improvements relating to spectrographic arc alignment
Inventor: DAVIS HERBERT MACDONALD
IPC: G01J1/26
Filed: 1951-08-03
Abstract: 712,114. Photo-electric control systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 3, 1952 [Aug. 3, 1951], No. 18498/51 Class 40 (3). [Also in Group XXXV] Apparatus for maintaining the image of a light source capable of slight lateral movement on a required optical axis by means of a concave mirror, comprises means for focusing the image between two photo cells, so that uneven illumination of the cells produced by movement of the source provides a voltage for rotating the concave mirror to reposition the image on the axis. As shown in the Figure the light from arc electrodes 2 is imaged by concave mirror 3 at a point S on the optical axis A - A of a spectrograph, whereby light from S is focused by a lens 6 to illuminate two photo cells 7 by an equal amount. Movement of the image S from the axis A - A unbalances the illumination of photo cells 7, whose output after amplification is applied to a moving coil movement 8 of the type described in Specification 677,739, [Group XXXV], to rotate the mirror 3 about an axis 4, bringing the image S back on to the optical axis A - A. An alternative moving coil movement employing a loud-speaker type permanent magnet is also described.
Patent GB-576844-A (GB)
Title: Improvements in or relating to route or destination indicators
Filed: 1943-11-08
Abstract: 576,844. Destination indicators. TURNER, H. Nov. 8, 1943, No. 18520. [Class 3 (i)] In route and destination indicators in which either roller for the display web can be made the winding-on roller automatically according to the direction of winding, the shafts 1, 2 which drive the roller stubs 10 through bevel &c. gearing are made axially non-slidable. A helical wheel 14 driven by hand or power engages a wheel 13 slidable axially so that one of the two sets of clutch teeth 16 is brought into engagement with a corresponding set on either the shaft 1 or shaft 2, the wheel 13 sliding one way or the other according to the direction in which the wheel 14 is turned. The wheel 13 may be mounted on a short shaft 15 furnished with the teeth 16, or may itself be formed with the teeth. The three sets of bearings 5, 6 and 11 are mounted on a back plate 7. The wheel 13 may be braked to make the sliding thereof more certain. Reference has been directed by the Comptroller to Specification 434,479.
Patent GB-1358395-A (GB)
Title: Manufacture of synthetic fibres and filaments
IPC: D01D5/00
Filed: 1972-09-04
Abstract: 1358395 Synthetic filaments C Z CARROLLPORCZYNSKI 4 Sept 1972 [2 June 1971] 18587/71 Heading B5B Synthetic fibres or filaments are made from synthetic plastics materials found to be capable of producing shavings by forming the resin into a rod or wire shaped configuration, and shaving filaments from the surface of the resulting rod or wire-shaped body using a wire shaving machine or a turnscrew-equipped lathe. Specified materials include polyethylene and polypropylene, and halogenated hydrocarbons e.g. polytetrafluoroethylene and copolymers of hexafluoropropane and vinylidene fluoride. Polybenzimidazole may also be used. Filaments so made are of an angular cross-section.
Patent GB-677682-A (GB)
Title: Non-emissive electrode for electron discharge device
IPC: H01J19/00
Filed: 1950-07-28
Abstract: 677,682. Electrode materials and processing. STANDARD TELEPHONES & CABLES, Ltd. July 28, 1950 [Jan. 18, 1950], No. 18897/50. Drawings to Specification. Class 39 (i). In an electron discharge device an electrode, other than a cathode, comprises a refractory metal base and an outer coating of alkaline earth oxide poisoned by the presence of carbon to render it thermionically non-emissive at temperatures attained during normal operation of the device. The electrodes may be formed from tantalum, platinum, molybdenum, or nickel, and coated with at least one of the oxides of barium, strontium, or calcium, and to make them non-emissive they may be mounted in a vacuum chamber connected directly with an oil diffusion pump, and provided with means for heating the electrode under a subatmospheric pressure to a temperature approximating or preferably substantially exceeding the normal operating temperature of an alkaline earth oxide coated filament in a vacuum tube, the normal vapour pressure of the oil in the diffusion pump providing a sufficient quantity of carbonaceous component in the atmosphere to effect the change in the coating.
Patent GB-498403-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B43/08
Filed: 1937-07-07
Abstract: 498,403. Bellows pumps. STANCLIFFE, C. W., and WINGET, Ltd. July 7, 1937, No. 18904. [Classes 8 (i) and 102 (i)] A pump comprises two bellows 11, 12 on opposite sides of a valve box 1. The end plates 13 are connected by side bars 24, which are driven by connecting-rods 26 from discs 25, driven through gearing 27 from an engine 28. The apparatus is mounted on a trolly 29. The valve box 1 is divided into two compartments by a partition 4, each compartment having an inlet valve 5 and a discharge valve 8, with common inlet and discharge pipes 9, 10. Each bellows may consist of sections 15 secured to the box 1 and end plates 13 by means of hose clips 19, and by means of beads on the sections engaging grooves in the parts to which they are attached. The sections 15 are preferably similar in cross-section to a motor tyre, and may be reinforced with canvas. The bellows are supported, in the collapsed position, by suitably formed rings 22, and by suitable formation of the parts to which they are secured.
Patent GB-1393844-A (GB)
Title: Benzylurethane derivative
IPC: C07D263/04
Filed: 1973-04-19
Abstract: 1393844 Benzylurethane derivatives SOC FARMACEUTICI ITALIA 19 April 1973 [19 April 1972] 19031/73 Heading C2C The invention comprises 4-chloro-2-butene-1- ol-N-benzylurethane (III<SP>1</SP>). This compound may be obtained by the reaction of 4-chloro-2- buten-1-ol (I) with benzyl isocyanate (II). The following derivatives are obtained by treating the compound (III<SP>1</SP>) with a strong alkali: (a) 3 - benzylamino - 4 - vinyl oxazolidine - 2 - one (IV) and 2-benzylamino-3-butene-1-ol (V).
Patent GB-1462783-A (GB)
Title: Purification of adiponitrile
Filed: 1973-04-24
Abstract: 1462783 Purification of adiponitrile IMPERIAL CHEMICAL INDUSTRIES Ltd 24 April 1974 [24 April 1973] 19271/73 Heading C2C Adiponitrile containing traces of heavy metals is purified by distillation in the presence of from 10 to 10,000 p.p.m. of phosphoric acid or an acid salt thereof, e.g. orthophosphoric acid, pyrophosphoric acid or an acid salt of phosphoric acid. The adiponitrile to be purified may be obtained by the amination of adipic acid.
Patent GB-855663-A (GB)
Title: Reinforced rubbery materials and method of making same
IPC: C08K5/18
Filed: 1957-06-19
Abstract: To 100 parts of the rubbery compositions of the parent Specification is added 0,5-10 parts of at least one compound of the formula: <FORM:0855663/IV(a)/1> where A is oxygen or a <FORM:0855663/IV(a)/2> radical, R is hydrogen or alkyl, M is sulphur, selenium or tellurium or their mixtures and b is at least 2.  A list of morpholine and piperidine compounds is given.
Patent GB-276315-A (GB)
Title: Improvements relating to the manufacture of corrugated metal tubes
IPC: B21D15/06
Filed: 1927-07-20
Abstract: 276,315. Meyer-Keller et Cie, O. Aug. 19, 1926, [Convention date]. Tubes.-A corrugated metal tube is made by bending or coiling a flat strip into tubular form with a longitudinal or helical seam, autogenously butt welding the seam, forming initial corrugations c, Fig. 3, in the plain tube and finally completing the corrugations by axial upsetting, to form the tube shown in Fig. 4.