baber/WOPTO huggingface dataset:
Patent GB-377247-A (GB)
Title: An automatic electric brake for railway trucks
IPC: B60T13/74
Filed: 1931-03-14
Abstract: 377,247. Vehicle brakes. SCOTT, J. R., Upwood Lodge, West Morton, Bingley, Yorkshire. March 14, 1931, No. 7867. [Class 103 (i).] The brakes of railway trucks are applied automatically by electromagnets by bufferoperated switches when the buffers are compressed as on downgrades. In addition to the ordinary buffers, the vehicles are provided at each end with a pair of buffers 3 each of which is connected through the buffer spring with one of a pair of wires 5. One of the wires is connected also to the electromagnet shown in Fig. 1 adapted to apply brake blocks 19 to the vehicle wheels by a lever 20. The two wires 5 are also connected respectively to the contact 14 and contact arm 13 of a switch which is normally closed, as shown, so as to connect the two wires but is opened when the buffers are pressed inwards by a member 6 and connections 8, 12. The source of current is carried by the locomotive or the guard's van. Thus when the buffers 3 of adjacent vehicles come into contact, the wires 5 are connected to the source and the' opening of the switches by the pressing in of the buffers opens the short circuit between the wires and causes the current to be supplied to the electromagnets 22.
Patent GB-550864-A (GB)
Title: Improvements in or relating to cold chamber die-casting machines for aluminium, brass and the like
IPC: B22D17/26
Filed: 1941-06-23
Abstract: 550,864. Hydraulic presses. DANIELS, Ltd., T. H. & J., and DANIELS, J. L. June 23, 1941, No. 7891. [Class 69 (ii)] [Also in Group XXII] In a die-casting machine of the kind having a cold chamber to receive a charge of molten metal for the die 11, 13 this is opened and closed by a plunger 19 which is connected to the die part 13 by a head 15a, rods 15, and head 14, operates in a fixed cylinder 20 and has a longitudinal bore 22, Fig. 4, in which fits a fixed ram 23 having a longitudinal passage 30 for motive fluid. When pressure fluid is admitted through the passage 30 as it passes through a small passage 38 in a spring-pressed valve 34 into the space 122 thus moving the plunger 19, die part 13, and valve slowly to the left. When the valve 34 uncovers the ports 37 the plunger moves rapidly to close the die, prefiller fluid from a tank 23a passing, through a non-return valve into the space 222 behind the plunger 19. When the die is closed pressure fluid is applied to the space 222 and the molten metal is forced into the die. After casting, pressure fluid is admitted to the space 120 to move the plunger 19 to the right, some of the fluid passing through a gate 19a to open the non- return valve and allow the fluid behind the plunger to return to the tank 23a. When the die is almost fully open the valve 34 is moved to the right to slow down the die-opening movement.
Patent GB-231491-A (GB)
Title: Improvements in chassis of side cars for motor cycles
IPC: B62K27/02
Filed: 1925-03-24
Abstract: 231,491. Yeats, J. A. March 29, 1924, [Convention date]. Side-cars, attaching. - The chassis comprises two rigid members pivoted respectively to a forward part and an upper part of the cycle frame, one or more resilient connections being provided between the chassis and lower part of the cycle frame to absorb stresses causing relative pivotal movement of the chassis and cycle frame. As shown in Fig. 1, the chassis comprises a forward diagonal bar 7 secured to a transverse bar 9 by a lug 10 and ball-jointed at 8 preferably to the lower forward part of the cycle frame, but the bar 7 may be extended upwards as shown in dotted lines for attachment to the cycle frame at a higher point. The bar 9 extends inwards forwardly and then upwardly, and is secured by a clip 25 to a bar 26 ball-jointed to the cycle frame adjacent the cycle saddle. The resilient connection comprises a spring-controlled lever 16 mounted on the chain stays of the cycle and adjustably connected by a member 14, preferably ball-jointed to a stay on the side-car chassis. The movement of the lever may be limited by stops. The stay may form part of a longitudinal chassis member 13, Fig. 1, or, when such a member is not used, may comprise a member 12, shown in Fig. 3, which illustrates a modified resilient connection. The member 12 which is secured to a strengthening web 24 formed on the bar 9, slides under the control of adjustable springs 30 on a rod 27 balljointed to the cycle frame. The stay may, alternatively, be formed at its inner end with a head working, under the control of a spring or springs, in a sleeve-like member jointed to the cycle frame. The member 12 may be adjustable in length and an additional resilient connection may be provided at 39, Fig. 1, when the bar 7 is connected to a higher part of the forward end of the cycle frame.
Patent GB-622545-A (GB)
Title: Folding hand truck
IPC: B62B1/12
Filed: 1947-03-24
Abstract: 622,545. Folding hand-trucks. WELCH, O. J. J. I., and MERTENS, A. P. J. March 24, 1947, No. 7953. [Class 108 (i)] A folding hand-truck for use in transporting suitcases, shopping baskets, wickerwork chairs for carrying very young children, and like articles, comprises a central rod or tube 1a to which are pivoted upper and lower pairs of arms 3a and 3b having their outer ends pivoted to anglesection side members 2, which when extended lie parallel with, and when folded nearly parallel with, the central member 1a. A disc 5, slidable on the member 1a, acts to lock the arms 3b in the open position and angle-section bars 6 pivoted to the flanges of members 2 may be erected to support the load. A strut 1b and a hanger 1c are also pivoted to the central member 1a, the end of which may be in the form of a crook.
Patent GB-349179-A (GB)
Title: Improvements relating to refrigerating apparatus
IPC: F25B49/02
Filed: 1930-03-12
Abstract: 349,179. Refrigerating. METERS, Ltd., Blackfriars House, Parsonage, and APPLETON, C. C., 13, Croft Street, Lower Broughton, both in Manchester. March 12, 1930, No. 8018. [Class 29.] Compression machines.-A vessel e containing a thermostatic fluid, the pressure of which is transmitted through a tube h to actuate the switch of the compresser driving motor, is arranged in the top of the evaporator vessel d, with its cover subject to the temperature of the air of a refrigerating chamber. The wall of the vessel e is surrounded by an annular space f to which the vapour return pipe g extends. The evaporator may be fitted with external gills c on sleeves b, and the inlet valve a is controlled by a float as described in Specification 348,754.
Patent GB-641946-A (GB)
Title: Metal planks
IPC: E04C2/292
Filed: 1947-03-25
Abstract: 641,946. Metal building units. MACDONALD, A. S. March 25, 1947, No. 8082. Convention date, April 16, 1946. [Class 87(i)] An elongated hollow metal building unit comprises two channel members 5, 6 secured together at their edges and each provided on its side faces with a tongue 18 and a groove respectively formed by springy ribs 19. The unit is stiffened by vertically spaced trays 14 fixed to the flanges 7-10 by punched and rolled connections 16. The edges 11, 12 of the members 5, 6 may be shaped to interengage with the interposition of insulating material, if desired, and be secured by crimping, or they may be nailed to vertical wooden frame members which support a sheet of aluminium foil or are connected together by wooden bars adjacent the faces of the unit. A package of rock &c. wool may be supported between the pairs of trays 14, or the unit may be filled with rock &c. wool. The faces of the unit may be corrugated and coated inside with insulating material.
Patent GB-861953-A (GB)
Title: Improvements in pressure-medium operated flexible sleeve valves
IPC: F16K7/07
Filed: 1959-03-09
Abstract: 861,953. Valves. VEREINIGTE ARMATUREN G.m.b.H. March 9, 1959 [March 11, 1958], No. 8116/59. Class 135. A flexible sleeve valve 7 clamped in a housing 1, 1<SP>1</SP> at its ends 6, 6<SP>1</SP>, when actuated by pressure applied at 12 via ports 11, 11<SP>1</SP>, closes on a hollow streamlined pipe insert 15 having openings 20, 20<SP>1</SP> at each end closed by non-return valves 22, 22<SP>1</SP> preventing flow into the interior, and by-pass orifices 19 symmetrically disposed in the wall of the insert upstream of the first place of closure contac tof the sleeve and insert and adapted to be covered as closure of the valve proceeds. Flow to the right seats valve 21 on the insert end 20 and through connecting rod 22<SP>11</SP> opens valve 21<SP>1</SP> from end 20<SP>1</SP>. As the longitudinally grooved sleeve is pressurized it first makes contact with the insert downstream of axially elongated orifices 19, due to displacement by the flowing fluid, whereby substantially full flow passes through openings 19, 20<SP>1</SP>. On further pressurization, the grooves close and the sleeve gradually closes openings 19 and prevents water hammer. For reverse flow valve 21 opens, valve 21<SP>1</SP> closes and first contact is made on the other side of openings 19.
Patent GB-637242-A (GB)
Title: Novel compositions of matter
IPC: C08L81/00
Filed: 1947-03-26
Abstract: A cold-setting composition comprises a mixture of a liquid thioplast having terminal mercaptan groups with at least 10 per cent by weight of a monomeric organic compound containing at least two groups of the type -NCX, where X is oxygen or sulphur.  In a modification a thermosetting composition is obtained by employing in place of the monomeric compound a thermally unstable compound which will yield on heating 10 per cent by weight of the composition of the monomeric compound.  The liquid thioplasts with terminal mercaptan groups may be prepared according to the process of Specification 600,644. Suitable monomeric organic compounds are ethylene diisocyanate, hexamethylene-1,6-diisocyanate, phenylene-1,3-diisocyanate, chlorphenylene-2,4-diisocyanate, tolylene-2,4-diisocyanate, tolylene-2,6-diisothiocyanate, diphenyl - 2,6 - 41 - triisocyanate, ethylene diisothiocyanate, phenylene - 1,4-diisothiocyanate, phenylene - 1,3 - diisothiocyanate, and hexamethylene - 1 - isocyanate-4-isothiocyanate.  Suitable thermally unstable compounds are addition compounds of polyisocyanates with diarylene amines, e.g. 4,41-diphenylene diamine or with malonic esters.  Also suitable are polymeric polyisocyanates, e.g. the dimer of toluene diisocyanate. The compositions are suitable as sealing or coating compositions. They adhere well to glass and aluminium.  In examples the liquid product prepared according to example 2 of Specification 600,644 is mixed with hexamethylene-1,6-diisocyanate or with toluene-2,4-diisocyanate.
Patent GB-1153974-A (GB)
Title: A-nor-Gonane Compounds
Inventor: JOHNSTON DAVID BRUCE RANDOLPH
IPC: C07J71/00
Filed: 1967-02-21
Abstract: 1,153,974. [2,3-c]Pyrazolo-A-nor-steroids. MERCK & CO. Inc. 21 Feb., 1967 [28 Feb., 1966], No. 8238/67. Heading C2C. Novel A-nor-steroids of the formula (wherein R 1  is H or CH 3 ; R 2  is C 1-6  alkyl; R 4  is H, phenyl or p-fluoro-phenyl; and Q is oxo, OH, C 1-6  acyloxy, tetrahydro-pyranyloxy, or #-OH with α-(alkyl, alkenyl or alkynyl which may be halogenated) are prepared by reacting the corresponding 2-keto-A-nor-steroids containing in the 17-position a hydroxy, anyloxy or tetrahydropyranyloxy group and a hydrogen atom with a C 1-5  alkyl formate in the presence of an alkaline reagent to give the corresponding 3 - hydroxymethylene - 2 - keto- A - nor - steroids and heating these in a C 1-6  aliphatic alcohol with hydrazine hydrate or the appropriately substituted hydrazine hydrate. Products containing 17#-acyloxy or -tetrahydropyranyloxy groups are hydrolysed to the free 17#-ols with an aqueous mineral acid. The 17#-ols may be hydrolysed to the 17-ones which may be reacted with hydrocarbon metal compounds to give the 17α-hydrocarbyl-17#-ols. 17α - Alkynyl compounds may be partially or completely hydrogenated to 17α-alkenyl or 17α-alkyl compounds. 17#-Tetrahydropyranyloxy - A - nor - 5α - androstan - 2 - one is prepared from the free 17#-ol and dihydropyran. The A-nor-steroids of the invention, which are stated to be potent inhibitors of progesterone, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-739854-A (GB)
Title: Arrangement in motor-driven worm gears cooled by fans
IPC: F16H57/04
Filed: 1954-03-22
Abstract: 739,854. Toothed gearing. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 22, 1954 [March 30, 1953], No. 8264/54. Class 80 (1). A cooling fan 4 for a worm-gear 1 is arranged on the worm-shaft 3 between the worm and an electric driving motor 2. The end bracket 5 of the motor is secured to the gear casing 6 through an intermediate member 7 and has inlet openings 8 for the cooling air. Air from the openings 8 may also be sucked through openings 11 into the motor by another fan (not shown).
Patent GB-238812-A (GB)
Title: Apparatus for use in the laying of bricks and similar elements in building
IPC: E04G21/22
Filed: 1925-03-27
Abstract: 238,812. Wight, G. E. March 27, 1925. Addition to 237,475. Brick-laying machines. -The brick-engaging members 4, 4a described in the parent Specification are operated by a hand-lever 7 which is hinged to the transfer device 1 and pivotally connected by a link 10 to a swivel-link 6 extending between the members 4, 4<a>. The bricks are gripped between the fixed members 3, 3<a> and the movable members 4, 4<a>, when the latter are operated by depressing the handie 7 against a spring 9. An arm 7<c> of the handle projects through a slot in the casing and is connected to the link 6 by a link 10. The link 6 is attached to slides 5 carrying the members 4, 4<a>. A grip member 8<a> is associated with the handle.
Patent GB-589781-A (GB)
Title: Improvements in coloured cellulose ester and ether textile fibres, foils, films, moulding powders, lacquers, and the like
IPC: C09B19/00
Filed: 1945-04-04
Abstract: Textile fibres, foils, films, moulding powders, lacquers and the like of cellulose esters or ethers are coloured by means of 1,3-dinitrophenoxazine or 1,3-dinitrophenthiazine.  Textile materials may be dyed by applying the dyestuff from an aqueous dispersion prepared with the aid of soaps, sulphonated oils, sulphuric esters of long chain alcohols, sulphonated condensation products from naphthalene and formaldehyde or other dispersing agents, or from solutions in organic liquids, e.g. aqueous ethyl alcohol.  The dyestuffs may be incorporated in solutions of cellulose esters or ethers from which the fibres, foils and the like are prepared.  In an example, scoured cellulose acetate fabric is dyed from a bath prepared by adding to a boiling the dyestuff with pyridine and turkey red oil.  1,3-Dinitrophenoxazine and 1,3-dinitrophenthiazine are prepared by condensing picryl chloride with o-aminophenol and o-aminothiophenol, respectively, and then treating with alkali.
Patent GB-626698-A (GB)
Title: Improvements in and relating to optical apparatus
Filed: 1946-03-18
Abstract: 626,698. Indicating-apparatus. SCHOUTE, C. March 18, 1946, No. 8373. [Class 106 (iv)] [Also in Group XX] The apparatus comprises a substantially plane mirror which reflects a parallel light beam on to a circular cylindrical or spherical concave mirror positioned so that the minimum length of the light path between the common and plane mirrors lies between 0.43 and 0.37 times the radius of curvature of the concave mirror, said plane mirror being rotatable about an axis lying in or near the reflecting surface thereof and parallel to the geometrical axis of the cylindrical mirror or perpendicular to the optical axis of the spherical mirror. As shown in Fig. 1, the shaft A as of a mirror galvanometer carries a plane mirror directing a parallel light beam on to a concave circular cylindrical mirror E. The light from this mirror converges to a line B and it is shown in the Specification that, for angular displacements of the plane mirror through approximately 70 degrees, the locus of the line images B is a plane surface; a plane scale 5 can thus be employed, this scale being disposed parallel to the axis of the shaft and orthogonal to the plane containing the shaft axis and the geometrical axis of the cylindrical mirror E. A plane mirror may be interposed between the rotating mirror and the concave mirror to reduce the size of the apparatus, and thus in the form shown in Fig. 5, parallel light from a source 3 is directed from a rotating plane mirror 2 of a galvanometer on to a concave circular cylindrical mirror 6 via a plane mirror 5, the concave mirror returning the light to mirror 5 so that it is reflected to a plane scale 7 mounted at 8 in a housing 1 containing the galvanometer. In another embodiment, the concave mirror is spherical and receives light from several plane mirrors in turn, these mirrors being arranged in the form of a polygon and being coupled to a shaft so as to rotate therewith ; the light from the spherical mirror converges to a point and so a succession of light spots can be made to scan a substantially straight line in a plane surface.
Patent GB-1408072-A (GB)
Title: Panel construction
IPC: E04F13/18
Filed: 1973-02-20
Abstract: 1408072 Building panels ARCHITECTURAL RESEARCH CORP 20 Feb 1973 8376/73 Heading E1B [Also in Divisions B2 and B5] An ornamental panel comprises as shown in Fig. 2 a first layer 14 of resin, a foraminous sheet 20 free from wrinkles or bubbles, a second layer 24 of resin encasing a solid mass of rigid foam 30 having a plurality of spaced apart openings 26 through which the resin of layer 24 extends, a second foraminous sheet 3'8 free of wrinkles or bubbles and a third layer 44 of resin, the surfaces of the layers being parallel, the layer 14, sheet 20 and layer 24 being bonded together and layer 24, sheet 38 and layer 44 being bonded together and the three resin layers each comprising 60%-90% by volume of mineral particles intermixed therein. The third layer 44 may have mineral chips 46 embedded in its outer surface. A reinforcing element e.g. steel structure 31 of ladder-like construction may be provided along the edges of the panel adjacent the rigid foam 30. Grooves 36 along two adjacent edges of the panel and tongues 34 along the remaining edges for interfitting with adjacent panels to form a wall structure may be provided. The resin may be a polyester consisting of the reaction product of a dibasic acid e.g. phthalic anhydride, isophthalic acid, adipic acid, tetra-phthalic anhydride, maleic, fumaric or itaconic acid, and a dihydric alcohol e.g. ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol or 1-3 butylene glycol dissolved in a polymerizable monomer e.g. styrene, vinyl toluene, methyl methacrylate or diallyl phthalate. The resin may contain a filler e.g. asbestos fibres, perlite, ground chalk, wood chips, fibre glass wool, and preferably sand, marble or granite. The foraminous sheet may be wire screen, woven fibre glass fibre glass mat. Preferred foam is foamed polyurethane or foamed glass or honeycomb. The panel may be produced by partially filling a frame with a dough-like mass of resin and filler and smoothing the upper surface to form the first resin layer 14, applying foraminous sheet 20 before the resin cures, applying more of the same dough-like resin and placing thereon foam block 30 then placing more of the dough over the block to complete layer 24, placing the second foraminous sheet on top of layer 24 and applying another layer of the same dough and finally embedding pieces 46 e.g. of glass, quartz, marble or granite. The bottom surface of layer 14 may be left smooth or textured.
Patent GB-526439-A (GB)
Title: Improvements in or relating to indicating instruments
IPC: G01R1/40
Filed: 1939-03-16
Abstract: 526,439. Indicating instruments. REYROLLE & CO., Ltd., A., and LINSTOW, F. N. March 16, 1939, No. 8393. [Class 106 (iv)] [Also in Group XXXVI] In an indicating instrument having a pointer and scale and means which retain the movable member -usually the pointer -in position when it moves beyond a predetermined limit, the retaining means consists of a latch C and an armature F so arranged that the latch moves independently of the armature when engaged by the needle D but is moved by the armature to release the needle when amagnet is applied to the exterior of the instrument casing. As shown for an ammeter, the wire latch C is bent to a shoulder at C1 and is attached to a lug Al, A2, A3 on the ammeter dial, the part A3 carrying a spring blade E on which are mounted an armature F and hook G. When the needle D moves in excess to the right, as when overload occurs, it lifts the wire C in hook G and latches behind shoulder C1. The needle is released again when a magnet is placed over armature F to lift the hook G and latch wire C.
Patent GB-686785-A (GB)
Title: Hair pin
IPC: A45D8/06
Filed: 1950-04-04
Abstract: 686,785. Hair pins. KLEMENT, F. J. July 2, 1951 [April 4, 1950], No. 8424/50. Class 131 A U-shape hair pin has a filament of wire; thread, plastic fibre &c. wound round, and fixed to the legs so that there are gaps between the windings. As shown a filament 4 wound round the corrugated legs 1, 2 and connecting part 3 of a hair pin is secured thereto, by applying a coat of varnish after the winding operation.
Patent GB-1114026-A (GB)
Title: Fuel injector for gas turbine engines
Inventor: HARVEY RICHARD ALFRED
IPC: F23D11/10
Filed: 1967-02-22
Abstract: 1,114,026. Burners. ROLLS-ROYCE Ltd. 20 March, 1967 [22 Feb., 1967], No. 8539/67. Heading F4T. A fuel injector for a gas turbine engine has a hollow central body 21, an outer body 17 forming a flow passage therewith, the body 21 and the flow passage being supplied with compressed air, fuel is supplied through a pipe 32 and aperture 31 to form an annulus of fuel flowing downstream and the flow of fuel and compressed air is deflected outwardly by a conical member 28.
Patent GB-345089-A (GB)
Title: Improvements in centre boards and drop keels for yachts and other sailing craft
IPC: B63B41/00
Filed: 1930-03-18
Abstract: 345,089. Centreboards and drop keels. WHITE, T., 70, Portsmouth Road, Woolston, Southampton. March 18, 1930, No. 8620. [Class 114.] Centreboards and dropkeels of the kind which can be adjusted laterally at an angle to the vertical plane of the longitudinal axis of the keel and are also connected with other operating gear so as to be free to rise on grounding are provided with actuating-gear of the screw and nut kind. When two centreboards are used a common actuating gear may be provided. The centreboard C, B is adapted to be lowered and raised within a well M by means of the screw and nut gear. The guide sleeve B for the stock C is externally threaded and is raised and lowered by the nut D beneath the flange. The upper end of the stock C has a flange F which takes the weight of the centreboard and between which and the nut is a buffer spring. The sleeve is prevented from turning by a key. The stock has a tiller whereby the centreboard can be set at an angular position to the keel line. In this form the centreboard is free to rise within the sleeve B on meeting an obstruction. In a modification the spindle is stationary relatively to the actuating gear but is free on the centreboard so that it is the centreboard only which rises in this case on meeting an obstruction. In another arrangement two centreboards are provided adjacent each other on the fore and aft line and are connected by pinions with a gear-wheel on a common operating stock.
Patent GB-175553-A (GB)
Title: Improvements in appliances for playing table cricket
IPC: A63F7/06
Filed: 1921-03-21
Abstract: 175,553. Dowling, F. March 21, 1921. Table games.-Table cricket is played upon a table made of three-ply wood covered with baize and having a recess f, to enable the batsman to reach the crease. The portions of the table from a to c and d to e are enclosed by netting, and movable model fieldsmen i are placed upon the table.