baber/WOPTO huggingface dataset:
Patent GB-151664-A (GB)
Title: Improvements in systems of automatic train controls
IPC: B61L3/12
Filed: 1919-03-26
Abstract: 151,664. Finnigan, G. P. March 26, 1919. Electrical systems, automatic; track apparatus actuating signals on trains and for stopping trains and actuating signals other than on trains.-The electric currents in two closed circuits on a passing train are varied by the inductive action of an electro-magnet and a permanent magnet on the track. The electro-magnet precedes the permanant magnet and is energized during safety conditions only of the track. When energized, it causes the currents in the train circuits to increase, and thereby prevents the operation of train-stopping devices during the decrease in the train-circuit currents invariably produced by the permanent magnet. The electro-magnet is energized by a track circuit and is short-circuited by a train in the section. The inductive action of the train circuits on the circuit of the track electro-magnet may be used to cause the operation of signalling devices. The closed train circuit I includes a source K, coils J loosely enveloping the wheels and the electro-magnets L, M. The magnet L normally holds down a trip-lever L<1> which, when released, permits the plunger O to descend and brake the closure P<1> of the brake pipe. The magnet M has an armature m which normally it is not strong enough to lift. The second train circuit T' includes coils J<1>, similar to coils J, and an electro-magnet T but no source. In the safety condition of the track, the track electro-magnet being energized, when the train passes over the magnets the current in the circuit I is increased sufficiently to cause the magnet M to lift its armature m. The circuit T<1> is excited also and the magnet T lifts the armature S. The action of the magnet T is very slow, so that at the time when the train passes over the permanent magnet and the excitation of the electro-magnets L, M is reduced so that both release their armatures, the armature S is still held and the detent R prevents the armature m from falling. Thus, the piece Q attached to the rod of the armature m remains below the abutment Q" and the end Q<1> of the trip lever, and although the magnet L no longer holds the lever, the part Q prevents the operation of the train-stopping device. In danger conditions, the track electro-magnet is not energized, the electromagnet M does not lift its armature m, and when the track permanent magnet produces a reduction in the current in the train circuit I, the magnet L ceases to hold the lever L<1> and the train is stopped.
Patent GB-597985-A (GB)
Title: Improvements in or relating to door latches and locks
IPC: E05B55/00
Filed: 1946-03-29
Abstract: 597,985. Locks and latches. BACK. HOUSE, H. T; March 29, 1946, Nos. 7629/47 (divided out of 9886/46 [597,984]), and 22743/46; [Class 44] A door latch mechanism of the kind having two independently operable handles, each of which may be operated in one direction to retract the bolt and in the reverse direction to block the bolt in shot position, is combined with a key lock operable from one side to block the latch. The latching mechanism shown is of the kind described in Specification 597,984 comprising a pivoted pawl 111, shown dotted in the free position, which may be engaged by one of the arms 108, 109 independently actuated by the handles so as to bring it into the position shown in full lines where the arm 113 of the pawl engages the face 110 of the latch to prevent retraction and the arm 115 to engage the arm 109 not already turned to prevent its now being turned in the locking direction. The key lock 121 is provided with a bolt 122 adapted to move the pawl 111 to the locking position. 'The lock 121 has a cylindrical casing and is mounted in a cylindrical housing in which it is registered by a member 175 engaging a longitudinal groove in the casing. In the form shown, the member 145 is constituted by the head of a pivot of a plate 117 turnable to block either of the arms 108, 109 in the blocking direction as described in Specification 597,983. Alternatively, the key lock may be outside the casing of the latching mechanism, the key lock bolt actuating a pin passing through the pivot 116 to engage the pawl. Specifications 496,776, 572,586 and 597,949 also are referred to.
Patent GB-780322-A (GB)
Title: Dry composition comprising a hydraulic setting material
IPC: C04B24/26
Filed: 1954-03-16
Abstract: A dry composition comprises a hydraulic setting material and a solid finely divided synthetic thermoplastic resin which can form a latex-like dispersion with water.  Other additions are a dispersing agent, e.g., an alkyl sulphate or other organic salt, and a solid alkaline material.  Resins specified are polyvinyl, polyacrylic, polystyrene, polybutadiene, and polychlorobutadiene, in amounts up to 25 per cent.  The hydraulic setting material is cement, gypsum, sorel cement or lime.
Patent GB-1425012-A (GB)
Title: Display package
IPC: B65D5/68
Filed: 1972-02-18
Abstract: 1425012 Packages ANGLO-WEIGHTMAN Ltd 2 March 1973 [18 Feb 1972] 7687/72 Heading B8P A display package for, for example packaged straps for wrist watches comprises a shallow rectangular tray 1 and partition walls 3, 5 of greater height than the tray to form rectangular compartments 2. The compartments 2 may be of different width for different width straps. The tray 1 and walls 3 and 5 may be made of cardboard. There is a lid 6 which may be made of cardboard or a transparent plastics and may be reinforced by an insert.
Patent GB-589691-A (GB)
Title: Improvements in or relating to apparatus for detecting the presence of explosive or other dangerous gases
IPC: G01N27/16
Filed: 1945-03-27
Abstract: In apparatus for detecting the presence of explosive, toxic, or other dangerous gas and causing the operation of associated apparatus when the concentration exceeds a predetermined value, of the kind actuated by the variations in the temperature and hence the resistance of a electrically-heated filament, a main relay operating the associated apparatus is constructed to have a time-lag so that it does not respond immediately to sudden large changes in resistance such as the failure of the filament would produce, and a subsidiary relay is so arranged to be operated without appreciable time-lag on the filament but to be inoperative for normal changes in the filament resistance, and when operated to render the main relay ineffective.  An arrangement is described with reference to a circuit diagram in which a dash-pot device provides the time-lag in the main relay, and operation of the subsidiary relay breaks the main relay. Alternatively operation of the subsidiary relay may prevent the main relay controlling the associated apparatus, or may short circuit the filament through a resistance equivalent to the compensating filament.  The subsidiary relay may operate an alarm and bring into the circuit a spare detecting filament.  Specification 567,101 is referred to.
Patent GB-1155791-A (GB)
Title: Improvements in or relating to Polyvinyl Chloride Fusion Coating Compositions
Inventor: MACEWAN THOMAS HOOD
IPC: C08L61/20
Filed: 1967-02-20
Abstract: 1,155,791. Coatings. BAKELITE XYLONITE Ltd. 20 Feb., 1968 [20 Feb., 1967], No. 7891/67. Addition to 1081462. Heading B2K. [Also in Divisions B5 and C3] A PVC composition for fusion coating of metals contains triaminoimelamine and a polyepoxide, e.g. diglycidyl ether of bisphenol A, bis (3,4-epoxy-6-methyl-cyclohexylmethyl) adipate or 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexane carboxylate. There may also be present a plasticiser, e.g. diisooctyl phthalate, organotin stabiliser, carbon black and a vinyl chloride-vinyl acetate-maleic anhydride copolymer. The composition is applied to gritblasted mild steel, cold rolled steel, polished steel or aluminium by a fluidised bed, electrostatic or dip coating technique. In a preferred method the coating is applied then a second coating' comprising only polymer and plasticiser is applied. The coatings are stored at 270-290‹C for up to three minutes.
Patent GB-165161-A (GB)
Title: A device for use in drying clothes and for other similar purposes
IPC: D06F57/12
Filed: 1920-03-17
Abstract: 165,161. German, J. March 17, 1920. Clothes racks.-A clothes rack which may also be used for displaying articles comprises a stationary frame upon which is slidably mounted a second frame having a pivoted bracket carrying arms for supporting the clothes, the arms being arranged to hang in vertical position when not in use and to be opened fanwise for use when the bracket is supported in an horizontal position. As shown, the rack comprises a pillar A having slotted sides a and upon which the frame B is adapted to slide and a bracket C to which the supporting-arms D are pivoted. The bracket is pivoted at its inner end to the upper portion of the frame and at its outer end to a U-shaped member c<1> having the depending arms c<2> which are pivoted to the sides of the frame. The bracket and the arms are maintained in an horizontal position by a spring-lath c<3> which coacts with the U-shaped member. When not in use, the bracket and the arms may be collapsed into a vertical position by pulling the U-shaped member outwards against the resistance of the lath. The frame may be maintained in position upon the pillar by a plate which is carried by a bar b<2> secured to the frame and which engages with one of the slots a<1> formed in the pillar. The position of the frame upon the pillar may be adjusted by an extension b<3>. The pillar may be secured to a wall or rotatably mounted upon a pedestal, and the rack is used for displaying purposes, the arms may be provided with hooks from which articles are suspended.
Patent GB-722922-A (GB)
Title: Resilient seal gate valves
IPC: F16K3/02
Filed: 1952-03-27
Abstract: 722,922. Gate valves. GARROTT, J. C. March 27, 1952 [April 10, 1951], No. 7897/52. Class 135. A gate valve comprises a tongue-shaped gate member 12, Figs. 1, 3, 5, formed on a screwthreaded operating spindle 50 which on rotation of a nut member 53 opens and closes the valve. The gate is formed with recesses 41 housing an annular resilient washer 26 which when the valve is closed sealing engages a U-shaped resilient gasket 25 clamped between a base-plate 28 and a bonnet 32. Metal wearing pads 44 are inserted in recesses 42 in the gasket 25 to provide a metal-to-metal joint with the parallel faces 17 formed on the valve casing 10. To prevent leakage from the valve casing annular sealing rings 60 are mounted in recesses 31 formed on coned projections of the base-plate and bonnet. If desired, the coned projections may be screw-threaded and engage complementary threads in the casing whereby the recesses 31 and rings 60 are dispensed with. In a modification. Fig. 7, the base-plate 28 is formed integral with the valve casing 10 and removable members 21 are held in position by dowels 65 inserted in the casing 10.
Patent GB-243219-A (GB)
Title: Improvements in and connected with machines for extracting the juice from lemons and other like fruits
IPC: A47J19/02
Filed: 1925-03-25
Abstract: 243,219. Brooke, H. K. March 25, 1925. Pressing and squeezing lemons and the like.- A machine for expressing the juice from lemons and the like comprises upper and lower pairs of rotary drums 15, 17 and 14, 16, which revolve in the directions indicated by the arrows, the drums 15, 17 carrying radially arranged cups 26 which may be elongated in their line of travel and register adjacent to a knife edge 27, the halves of the fruits passing down the curved sides of the knife stand 28 to be engaged by high-speed rotary pulpers 87 arranged in the gutter-shaped peripheries of the drums 14, 16. The cups 26 are slida.ble radially to the drums 15, 17 and are urged outward by coiled springs 43, the stems 40 of the cups accommodating rind-ejecting rods 46 operated by stationary cams 25. The pulpers 37 are driven by spur or friction gearing and are slidable radially and are urged outwards by springs 35. The juice runs down the gutter-shaped peripheries of the drums 14, 16. Suitable gearing is provided for driving the various elements from a common shaft.
Patent GB-414455-A (GB)
Title: Improvements in and relating to liquid-break electric switches
IPC: H01H33/70
Filed: 1933-03-16
Abstract: 414,455. Arc-rupturing in switches. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats Ges. ; 2, Friedrich Karl-Ufer, Berlin.) March 16, 1933, No. 7989. Convention date, March 16, 1932. [Class 38 (v).] A switch has its contacts b, c arranged in a chamber a into which extinguishing liquid (e.g. water) is injected during the opening movement, and the pressure exerted on the injecting means is equal to the maximum pressure allowable in the chamber, so that when that pressure is reached no more liquid is injected. At the moment of interruption of contact, a definite pressure is turned on to a piston g from a pipe i whereby liquid which has been fed through an opening h into the cylinder e, opens the non- return valve f and passes into the chamber a. When the pressure in the chamber a equals that applied to g, no more liquid is injected, and when the chamber-pressure is a little greater it closes the valve f. In another form, Fig. 2 (not shown), a spring or air-buffer is located in a rod connection between g and the operating-pressure.
Patent GB-1517848-A (GB)
Title: Cartridge-powered fastener-driving tool
IPC: B25C1/10
Filed: 1976-03-01
Abstract: 1517848 Caseless propellant powered fastener driver HILTI AG 1 March 1976 [1 April 1975] 08003/76 Heading B4C An explosive-powered fastener-driving tool comprises a housing 1, a barrel 2 a carrier 8 having one or more recesses 8a for caseless propellant charges 9, a combustion chamber 1a, a feed member 2b for feeding the propellant charges from the carrier to the combustion chamber, and a tappet 10a disposed on the opposite side of the combustion chamber to the feed member, the tappet having a cross-section corresponding to that of the combustion chamber and adapted to penetrate the combustion chamber to eject combustion residues or a misfired charge back into a recess 8a in the carrier. Preferably the feed member 2b and tappet 10a have identical cross-sections, are arranged co-axially and serve as ends of the combustion chamber. As shown carrier 8 is a magazine (alternatively it is a slider 68, Fig. 7). The magazine is advanced by a forward movement of barrel 2 via lever 15. Pressing the barrel against workpiece 20 causes feed member 2b to penetrate a recess 8a in the magazine and deliver a charge 8 to the combustion chamber la. The charge is detonated by pin 13, causing piston 5 to drive nail 4. Release of the pressure of the driving tool against workpiece 20 allows spring 12 to cause tappet 10a to push any residual charge from the combustion chamber back into magazine aperture 8a. In the embodiment of Fig. 3, feed member 31 and tappet 28a are not coaxial with barrel 22, thus reducing the length of the tool. In the embodiment of Fig. 7, pressing barrel 64 against workpiece 20 causes feed member 64a to press charge 71 from aperture 68a in slider 68 to combustion chamber 62b. After firing barrel 64 is pulled forwards to allow spring 80 to rotate lever 7a and thus move slider 68 to its lower position (Fig. 8, not shown) opposite magazine channel 62a from whence a fresh charge is pushed by spring 72. A control member 6a, Figs. 7, 10, mounted on leaf spring 70 prevents spring 72 from delivering more than one charge to slider 68.
Patent GB-213610-A (GB)
Title: Safety appliance for use in acetylene generators
IPC: C10H21/00
Filed: 1924-03-31
Abstract: 213,610. Autogenwerk Sirius Ges. March 31, 1923, [Cenvention date]. Void [Published under Sect. 91 of the Act]. Solid supply to liquid.-To prevent an explosion due to the supply of carbide to an insufficient body of water, the carbide-feed is controlled according to the level of water in the generating chamber. Thus, shutters 5, Fig. 1, carried by a float-rod 2 and working against an abutment 6, serve to close, as the float 1 falls, the passages 4 between the feed-mechanism 8 and the generating chamber 9; alternatively, as shown in Fig. 2, the float 10 serves to open the connection between the feed-drum 11 and the gearing 12 connected to the gas-holder bell.
Patent GB-198338-A (GB)
Title: A new and improved pump diaphragm
IPC: F04B43/00
Filed: 1923-03-22
Abstract: 198,338. Dorr Co., (Assignees of Reybold, E. C.). May 24, 1922, [Convention date]. Compound fabrics. - The diaphragm 4 of a pump consists of a fabric composed of a number of layers 14, 15 of parallel threads 23, 24, embedded in and coated with a skin of rubber 16, 17 and enclosed in layers of rubber 21, 22. The threads of one layer are arranged at an angle to those of the other. The threads of each layer are held together by a few light weft threads 25. The material may be used also for making flexiblechamber pumps.
Patent GB-609595-A (GB)
Title: An improved terminal device for electrical apparatus
IPC: G01R1/20
Filed: 1946-03-18
Abstract: 609,595. Binding-posts. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd., WHITESIDE, H. J., and ROBARTS, W. A. March 18, 1946, No. 8344. [Class 38 (i)] A terminal comprises an insulating housing 1 having a mounting flange 2 and carrying a terminal rod 4 movable in a central cylindrical passage therethrough, the lower end of the rod carrying a nut 5 and washers 6 to receive a wire and serving to limit the upward movement thereof. The upper end of the rod carries an insulating cap 8 overlapping the housing and urged upwardly by a spring 11 housed in the top of said housing, depression of the knob bringing transverse holes 12, 14 in the housing and rod respectively into alignment to enable a wire to be inserted therein, where it is gripped on release of the knob. Alternatively, one side of the housing and rod may have inclined slots, Fig. 6 (not shown). Further, the rod or the housing and overlapping part of the knob are of square or polygonal cross-section to prevent relative turning of the rod and housing.
Patent GB-1029402-A (GB)
Title: Method of and apparatus for heat treating metal products
IPC: C21D9/54
Filed: 1963-03-04
Abstract: <PICT:1029402/C6-C7/1> In a method and apparatus for heat treating metal products, particularly open-wound coils of strip, the products are treated in at least one pair of cells, of which each cell is provided with means for circulating a suitable gas round the product and with means by which controlled minor amounts of gas may be exchanged between the cells in closed circuit so that equalisation of temperature between the two products is achieved.  As illustrated in Fig.1 coil 18 stands on plate 1 and is enclosed by cover 8, which is itself surrounded by bell 11 equipped with burner 10 and outlet 12 to heat exchanger 13.  Gas is caused to circulate through the turns of the coil and the central orifice by contrarotating impellors 31,32 working in shield 30 and by deflector plates 37.  Annular manifold 15 having openings 17 is sorrounded by manifold 19 having openings 20, these manifolds being connected through valves 22 and 26 to conduits 24 and 28 respectively by means of which gas is exchanged with a similar cell.  An arrangement of cells and pipe-work including a blower for circulating gas and a heat exchanger with the aid of which a cell may be isolated and its charge cooled are also disclosed.
Patent GB-553734-A (GB)
Title: Improvements in or relating to multiple-break gas-blast circuit-breakers
IPC: H01H33/14
Filed: 1941-07-04
Abstract: 553,734. Gas-blast circuit breakers. AKT.- GES. BROWN, BOVERI, & CIE. July 4, 1941, No. 8484. Convention date, Feb. 27, 1940. [Class 38 (v)] In a gas-blast circuitbreaker with multiple interruption by means of a plurality of switch elements arranged in series, only the outer points of interruption are bridged over by impedances which are so dimensioned that the voltage to be interrupted is distributed as uniformly as possible over the individual points of interruptions so that the arc is certain to be extinguished. The residual current arising from the interruption of the arc is interrupted by the remaining points of interruption which are not bridged) over and at least one point of interruption at each end of the series of switch elements is bridged over by a resistor or capacity. The ends of the supporting tubes for the switch elements are constructed to act as resistors or capacities which may be graded and are provided with an external layer of semi-conductive material. High ohmic resistors in the form of tubes l', l<SP>2</SP> fixed to both ends of tubes f are connected in parallel with each of the two points of interruption a<SP>1</SP>, a<SP>2</SP> and a', a<SP>8</SP> of a series of points of interruption a<SP>1</SP> . . . a<SP>8</SP>, arranged in extinguishing chambers formed inside the insulators e arranged in between the tubes f. Capacities instead of resistors may be provided on the tubes f. The insides and outsides of the extinguishing chambers may be provided with layers of semi-conductive material and the walls of such chambers may be made of a material of high ohmic resistance. When condensers are used, those parts of the chambers surrounding the arcing contacts of the switch points may be used as condenser elements or the walls of the chambers may be made from a material having a high dielectric constant. An air isolating switch may be connected in series with the switch points arranged in series. In another form of circuit breaker, the outer points are located inside insulators and are bridged over by protective cylinders provided with insulating covers to act as condensers.
Patent GB-659116-A (GB)
Title: Improvements in or relating to the preparation of phenthiazine derivatives
Filed: 1949-03-29
Abstract: The isomeric compounds N-(21-diethyl-amino-21-methyl-ethyl)-phenothiazine and N-(21-diethylamino - 11 - methyl - ethyl) - phenothiazine are prepared by reacting phenothiazine with a - (or b -) methyl-b -diethylamino-haloethane in the presence of an acid acceptor.  The two isomers are formed together and may be separated by fractional crystallization of alcoholic solutions of the hydrochlorides. Examples are given in which phenothiazine is heated with (1) a  - methyl - b  - diethylamino - chloroethane and (2) b  - methyl - b  - diethylamino - chloroethane in the presence of xylene and sodamide. Specification 608,208 is referred to.
Patent GB-395457-A (GB)
Title: Improvements in and relating to methods of operating explosion chambers, in particular for internal combustion turbines, and apparatus therefor
IPC: F23C15/00
Filed: 1932-03-22
Abstract: 395,457. Gas turbines. HOLZWARTH, H., 7, Goethestrasse, Dusseldorf, Germany. March 22, 1932, No. 8530. [Class 110 (iii).] In a gas turbine, at the beginning of admission of fuel to the explosion chamber 1, the portion of the chamber adjacent to the air inlet valve 3 is filled with fuel from the valve 2 and the charge is driven forwards uniformly towards the ignition point 5 in front of the discharge valve 4. Ignition may be continuous or controlled. The cam controlling the fuel pump may be formed so that the rate of feed increases during its stroke. One or more extra fuel supply pipes 7 may be fitted to the explosion chamber, which may be oil cooled.