baber/WOPTO huggingface dataset:
Patent GB-564668-A (GB)
Title: Improvements in gear wheel pumps for liquids
IPC: F04C11/00
Filed: 1943-05-13
Abstract: 564,668. Gear-wheel pumps. HAMILL, W. W., and MEADOWS, Ltd., H. May 13, 1943, No. 7614. [Class 110 (ii)] A gear-wheel pump has duplicated inlet and outlet valves tc secure one-way de. livery of fluid being pumped, for either direction of rotation of the gears. The casing 1 is connected to bifurcated inlet and outlet branches 2, 3 respectively. Non - return valves, preferably of the ball type as shown, control the fluid flow. The valves may be of rubber or synthetic rubber. The inlet valves may be located in the branch 2. Two pumps in series may be arranged in one casing, their capacities differing.
Patent GB-182861-A (GB)
Title: Improvements relating to bedsteads
IPC: A47B85/08
Filed: 1921-03-10
Abstract: 182,861. Wellfare, J. March 10, 1921. Bedsteads combined or fitted with wardrobes, drawers, and other fittings.-The foot end of a bedstead is fitted with a centrally-positioned wardrobe A, and drawers N arranged to slide with a dust-proof box, trouser press F and dropdown mirror O. The box member has the sides detachably secured to the bedposts, and it is of such a height that the mattress may lie over it. The trouser press F is hingedly mounted on the inside of the wardrobe door D, and it is supported in the raised position as shown by an arm M hinged to the side of the wardrobe.
Patent GB-365864-A (GB)
Title: Improvements relating to bolt anchors
IPC: F16B13/08
Filed: 1931-03-12
Abstract: 365,864. Screw sockets. PLEISTER, H. W., 239, Walnut Street, Westfield, New York, U.S.A. March 12, 1931, No. 7624. [Class 89 (i).] A hollow screw socket 1 has a threaded wedge portion 6 integrally connected to it by webs 8. When the bolt 11 is revolved to secure the work the portions 8 are broken and the wedge 6 expands the socket 1, which has slots engaging webs on the wedge to prevent relative rotation. In a modification a wedge portion is formed at each end of the socket. The socket may be secured by hammering before the bolt is applied.
Patent GB-926434-A (GB)
Title: Improvements relating to dynamo-electric machines
Inventor: JOTTEN ROBERT
IPC: H02P7/282
Filed: 1962-02-27
Abstract: 926,434. Control of D.C. motors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Feb. 27, 1962, No. 7644/62. Class 38 (3). A resistor 13 in the output stage of a multistage transistor amplifier develops a control voltage for the field winding of a D.C. motor. Potentiometer 22 produces a voltage which is proportional to the maximum field current, and is opposed by the voltage across resistor 21, representing the actual field current. Transistor 1 conducts, transistor 2 is blocked, and transistor 3 passes full load current until maximum field current is reached, whereupon the output stage is switched off. The armature voltage of the motor is developed across resistor 25 and is opposed by a voltage across potentiometer 26 representing the value at which field reduction is to be initiated. The signal which is the difference between these two voltages controls transistors 5 and 4, the latter providing a voltage in opposition to the input voltage of the transistor amplifier when the armature voltage exceeds a predetermined value. When the actual field current falls below a minimum safe value, transistor 6 is rendered non-conductive to prevent further weakening of the field.
Patent GB-512331-A (GB)
Title: Improvements in or relating to storage bins, bunkers or the like
IPC: E04H7/28
Filed: 1938-03-11
Abstract: 512,331. Storage bins. WADDON CONCRETE & BUILDING MATERIAL CO., Ltd., and KNIGHT, R. E. March 11, 1938, No. 7653. [Class 20 (i)] A storage bin is built of precast concrete slabs A, B having interfitting vertical edges which are secured together by bolts or the like, one of the slabs being provided with an opening K extending upwardly from the lower edge and adapted to receive a door L which opens or closes the aperture. The door may be hinged or sliding and if sliding undercut grooves may be provided in the concrete at each side of the opening to receive its edges. The securing bolts for the edges of the slabs may be cast in the edges thereof with projecting portions to engage apertures in the abutting slabs. A flanged lid J of wood or concrete is fitted to the upper end of the bin. The slabs may be decorated by brushing off part of the outer cement surfaces to expose the aggregate which may be coloured. A baffle M is bolted to the front panel over the door opening.
Patent GB-1128864-A (GB)
Title: Improvements in electrohydraulic shock wave emitters
IPC: G01V1/157
Filed: 1966-02-22
Abstract: 1,128,864. Seismic energy generation. GENERAL ELECTRIC CO. 22 Feb., 1966 [31 March, 1965], No. 7668/66. Heading H4P. A reflector 12, Figs. 1 and 2, is utilized to direct in a required direction the shock-waves produced by an electric discharge between the tip 10 of an electrode 4 and a coaxial electrode 2. To ensure uniformity of shock-wave energy when the device is used repeatedly the discharge is arranged to occur in a fluid (e.g. water) of known density and viscosity contained in a deformable member 16. Admission and discharge of the fluid is effected via tubes 24 which also allow waste gases to be exhausted. When the device is employed for the production of seismic energy in a water-filled bore-hole, the member 16 is expanded as at 32 to seal the hole completely to improve the efficiency of shock-wave transmission. Since the shock-waves penetrate to a depth much deeper than the bottom of the bore-hole before they spread a shallow borehole only is required. Additionally, because of the shielding effect of the reflector, surface waves are not produced.
Patent GB-1358369-A (GB)
Title: Energy absorbing frame structure for a motor vehicle
IPC: B60R19/34
Filed: 1973-02-16
Abstract: 1358369 Vehicle frames FORD MOTOR CO Ltd 16 Feb 1973 [29 March 1972] 7669/73 Heading B7B The longitudinals 12 of a frame for a vehicle are provided with sections 20, 22, 24 of localized reduced bending strength, the arrangement being such that on end impact the longitudinals collapse by bending at those sections in a progressive manner thus absorbing the impact energy. The frame 10 comprises two box section longitudinals, having tapered end portions, which are interconnected by a cross member 16. The lower edge of each tapered portion is scalloped at 20, 22, 24, the cross-sectional depth reducing at these points from 20 to 24, and a bumper bar 28 is mounted in the cross member by box section corrugated supports 30 (32) (Fig. 3, not shown) which are aligned with the longitudinals. On end impact the bumper supports collapse first, and then the longitudinals undergo collapse by bending progressively at sections 24, 22, 20 (Figs. 5-7, not shown). A spare wheel carrier 44 may be pivotally supported on the frame by an arm 50 and locked in its out-of-use position by a releasable bolt 49.
Patent GB-1243850-A (GB)
Title: Stretcher support apparatus for an ambulance
IPC: A61G3/00
Filed: 1969-02-12
Abstract: 1,243,850. Ambulances. BINZ & CO. 12 Feb., 1969 [18 July, 1968], No. 7683/69. Heading B7B. A stretcher carrier 14 is supported at its forward end by links 17 pivoted at 18 to brackets secured to the floor 12 and at its rear end by toggle links 28, 29. The links 17 have integral arms 21 carrying resilient buffers 22 to prevent road shocks from being transmitted to the stretcher if desired although levers 24 pivoted to the arms 21 may be raised to the dotted position where the roller 27 engages the part 11 when the resiliency is not required. The rear links 28, 29 are maintained in their extreme positions by a spring-loaded pin mounted on the arm 29 entering holes 35, 36 in the other arm 28, the pin being remote controlled via a cable 40.
Patent GB-954561-A (GB)
Title: Improvements in or relating to methods of manufacturing "cermet" casting moulds
IPC: C22C32/00
Filed: 1961-03-02
Abstract: Permanent moulds or casting dies for casting metals and alloys are formed by sintering cermet agglomerates under a pressure of 7,100 to 71,000 p.s.i. and a temperature of 2190 to 2640 DEG  F., the cermet agglomerates consisting of alumina or a high alumine-content compound containing more than 55% by weight of combined alumine and a ferrous metal phase containing chromium and/or aluminium.  A preferred cermet consists of 45 to 75% of iron, 3 to 20% of chromium and 5 to 40% of alumina or bauxite.  The constituents are mixed in powder form, pressure applied and the powder sintered in a hydrogen atmosphere for 1 hour to give a product having a porosity from 3 to 25%.  When bauxite is used it is advantageous to roast it in a reducing hydrogen atmosphere before mixing it with the metal powders.  The metal phase of the preferred cermet may contain up to 12% of aluminium, part of the chromium being substituted by the aluminium. The sintering may be carried out in a neutral or reducing atmosphere.  The dies or moulds may be selectively oxidized to cause a thicker oxide coating or film to cover the mould.  The mould portion which will be in contact with molten metals may be coated with alumina, silica, silico-aluminate, graphite, lamp or acetylene blacks.ALSO:Permanent moulds or coating dies are formed by sintering, e.g in a neutral or reducing atmosphere, cermet agglomerates under a pressure of 7,100-71,000 p.s.i. and a temperature of 2,190-2,640 DEG F., the cermet agglomerates consisting of a ceramic phase which is alumina or a high alumina-content componud containing more than 55% by weight of combined alumina and a metal phase which is a ferrous metal containing chromium and/or aluminium. A preferred cermet consists of 45-75% of iron, 3-20% of chromium and 5-40% of alumina or bauxite. The constituents are mixed in powder form, pressure applied and the powder sintered in a hydrogen atmosphere to give a product having a porosity of 3-25%.  When bauxite is used it is advantageous to roast it in a reducing hydrogen atmosphere before mixing it with the metal powders.  The metal phase of the preferred cermet may contain up to 12% of aluminium, part of the chromium being substituted by the aluminium.  Cermets containing 45-75% of iron, 3-15% of aluminium and 5-40% of alumina or bauxite may also be prepared. The dies or moulds may be selectively oxidized to cause a thicker oxide coating to cover the mould.  The mould portion which will be in contact with molten metals may be coated with alumina, silica, silico-aluminate, graphite-lamp black or acetylene black.
Patent GB-526206-A (GB)
Title: Improvements in and relating to the production of threads, filaments and the like from viscose
IPC: D01F2/08
Filed: 1939-03-10
Abstract: 526,206. Artificial filaments etc.; viscose. COURTAULDS, Ltd., STOKES, W. H., and ROSE, L. March 10, 1939, No. 7804. [Class 2 (ii)] Artificial filaments are obtained by extruding into a coagulating bath, viscose made from highly purified wood-pulp containing less than 0.5 per cent. of acetone-extractable matter, with which viscose at least one substance having the property of reducing the surface tension of the viscose has been incorporated. The added substance may be a resinous substance extracted from wood pulp, such as pulp resin soap obtained in the manufacture of Kraft pulp from pine wood or obtained from the medullary ray fibres separated mechanically from sulphite wood pulps. The added substance may be a terpene carboxylic acid, terpineol, a terpene compound sold under the Registered Trade Mark " Petrex," the essential constituent of which is 3-isopropyl-6-methyl-3.6-endoethylene-#<SP>4</SP> -tetrahydro phthalic anhydride, a derivative of tauro-cholic acid, e.g. the sodium salt of tauro-cholic acid, an alkali salt of a sulphonated fatty acid or hydrocarbon, or a soap. The proportion of added substance is in general less than 0.5 per cent. The addition may be made at any stage of the manufacture of viscose. In an example, a purified wood pulp containing 0.12 per cent. of matter extractable by acetone is converted into viscose and during the dissolving step there is added a little ox-bile salt which comprises a mixture of sodium tauro-cholate and sodium glycocholate. The surface tension of the viscose is thus reduced. The solution is spun into an acid-salt bath. Specifications 340,564, 363,908, and 364,995, are referred to.
Patent GB-1045138-A (GB)
Title: The preparation of ferric oxide coated powders and manufactured ferrites
IPC: C01G49/00
Filed: 1964-02-25
Abstract: A process for making a ferric oxide coated powder which may be converted into a ferrite comprises depositing ferric oxide directly upon a support consisting of a finely divided divalent metal oxide suspended in an aqueous medium comprising an aqueous solution of ferrous sulphate containing free metallic iron and stirring the mixture while blowing air therethrough.  The reaction is carried out at between 50 DEG  and 80 DEG  C., preferably 75 DEG  C.  The quantities of reagents are such that the mixture contains not more than 120 g. of ferric oxide coated powder per litre per litre of solution.  The product is filtered and washed and then stamped or pressed, with or without a binder, and finally heated to convert it to a ferrite.
Patent GB-255774-A (GB)
Title: Improvements in gas welding torches
IPC: F23D14/54
Filed: 1926-03-22
Abstract: 255,774. Awa Autogen-Werkzeug-& Apparatebau-Ges. July 25, 1925, [Convention date]. Blowpipe burners. - In a gas welding torch the conical jet c on the oxygen supply pipe a and the induction jet d are enclosed in a sleeve i in the heating gas tube b and any oxygen escaping between the jets c, d passes into the atmosphere through holes k in the sleeve i and holes in the tube b. The heating gas passes to the. induction tube e through channels m formed in the outer surface of the sleeve i.
Patent GB-594678-A (GB)
Title: Improvements in and relating to rim or flush latches and combined rim or flush locksand latches
IPC: E05B3/06
Filed: 1945-03-29
Abstract: 594,678. Locks or latches. PARKES & SONS, Ltd., J., FRYER, E. C., and BUTTER, F. J. March 29, 1945, No. 7904. [Class 44] A rim or flush lock or latch, having its handle or one of its handles already attached, is inserted by threading a handle through a bole in the lock, or through a plate covering a flush lock, and has extending from its inner face a screw or boss which either fills the hole or receives a rose or door plate which is threaded over the handle to cover the hole. When a socket is employed it may be formed on the lock, the handle shank passing through it, whereas a boss may be formed on the handle shank itself. A rim lock B has a cap plate b having on its outer face an integral socket b<1> through which passes the shank of a lever handle C, on which is a boss or collar c. A hole a in the door, and a hole d in a plate D secured to or forming part of the door, are large enough for the handle C to pass through and to allow lateral displacement of the lock. A rose E has an internal diameter sufficient to permit its threading over the handle and its fitting over the boss c and an external diameter sufficient to permit its covering the hole d. Projecting inwardly from the rim of the rose are two oppositely disposed lugs e, slotted at e<1> to leave overhanging parts e<2> which engage under the edges of their respective notches d<1> in the edge of the hole d, when the lock is displaced to the right. Instead of lugs, the rose may have an internal screw thread engaging an external thread on the socket b<1> ; the lock is not displaced in this case. The rose may be replaced by a door plate. Instead of the handle,C a knob capable of going through the hole in the door may be used. For use with a flush lock the socket bl is made much shorter.
Patent GB-219360-A (GB)
Title: Improvements in electrical soldering irons
IPC: B23K3/03
Filed: 1923-03-20
Abstract: 219,360. Beasley, J. F. March 20, 1923. Soldering-irons.-In an electric soldering-iron, the heating element is secured between the shanks of a pair of T-headed bars, which are enclosed within a tube secured to the handle, the bit being secured to the heads of the bars. The bit 1, which may be of ordinary shape or of thin oblong shape for soldering the ends of armature coils to commutators, has an extension which is secured by a screw 4 between the heads 8 of a pair of segmental copper bars that are slid into a steel cylinder 6 and secured thereto. The cylinder is secured to a steel cylinder 14, in which is screwed the tube 16 carrying a wooden handle. Four flat heating elements, which are provided at each end with metal strip contacts so that they are connected in series, and secured between the flat sides of the shanks of the bars by screws 13, 13', the end elements being connected by contacts 24 to the leading-in wires 22, and the screw 13 being provided with insulating washers. Each element consists of a wire wrapped on mica and having strips of mica on opposite sides partly covered by tin strips, leaving gaps through which the strip contacts are exposed. The leading-in wires 22 are insulated by beads, pass through a round fibre block 20, and are secured to terminals 21 thereon. The handle has a detachable portion 18, which is secured to a fibre washer 19, itself secured to the portion 17 by screws inserted through grooves in the portion 18.
Patent GB-1092910-A (GB)
Title: Improvements relating to the preparation of master recording discs
Inventor: SOBY WILLIAM
IPC: G11B3/70
Filed: 1964-02-26
Abstract: A film for use on the recording surface of a master recording disc (see Division G5R) comprises cellulose acetate butyrate in combination with di-octyl phthalate, epoxidized linseed oil and di-tridecyl phthalate, or in combination with other epoxidized oils.
Patent GB-486472-A (GB)
Title: Apparatus for controlling a character-bearing tape for movement through a projection field
IPC: G03B21/134
Filed: 1937-03-18
Abstract: 486,472. Feeding webs. ROLLINSON, E. W. (Trans-Lux Daylight Picture Screen Corporation) March 18, 1937, No. 7989. [Class 100 (i)] An apparatus for controlling a characterbearing tape which is fed from a printing- mechanism for subsequent passage through a projection field, comprises a motor for drawing the tape through the projection field, a movable member resting upon the tape between the printing-mechanism and the projection field, this movable member being solely under the control of the tape, forming a taut loop in the tape of variable length, and serving to control the operation of the motor, means whereby the movable member controls the starting and stopping of the motor, and means controlled by the movable member for substantially increasing the speed of the motor in the event that the length of tape loop increases beyond a predetermined extent whereby the tape is maintained constantly in contact with the movable member. The printing-mechanism comprises a stock ticker mechanism P wherein a pair of feed rolls 1, 1a, feed the tape T from a roll 2 to a typewheel 2a and out of the ticker. The tape is then drawn across a light projection field, preferably comprising a light housing A having a lamp, reflector, and lenses, which projects the images on the tape through a lens 12 on to mirrors, and the latter project the images on to a screen. The means for drawing the tape comprises rollers 14, 15, the former being driven from a motor 23 by sprocket and chain means. The tape is rewound on a reel 19 driven from the motor through a spring belt. Resting on the tape between the ticker and light housing is a member 27 which bears on the tape, either centrally or at the two edges, and guides the tape at the two edges, and forms part of a pivoted bell-crank lever 28. The other end 28b of the lever forms part of a rheostat in the motor circuit. In the position shown, when there is practically no loop in the tape T due to the stopping of the ticker, the motor circuit is broken and no tape is pulled by the rollers 14, 15. When the ticker operates, the size of the loop increases so that the end 28b of the lever 28 moves to complete the motor circuit, first through resistances 39, 40, then through resistance 40 only, and finally without these resistances, according to the size of the loop in the tape. The speed of the motor 23 is thus controlled by the size of the loop in the tape ejected from the ticker P. The member 27 damps down vibrations &c. in the tape before it passes to the light projection field.
Patent GB-144417-A (GB)
Title: Improvements in or relating to acetylene generators
IPC: C10H1/00
Filed: 1919-04-01
Abstract: 144,417. Challenor, A. E., and Woollen, H. April 1, 1919. Drip-feed apparatus; solid in separate charges in generator; securing holders for solid to superimposed liquid chambers. -Relates to drip-feed acetylenegenerators in which the carbide container is divided into a series of compartments, any one of which can be set to receive a supply of water. According to the present invention, the compartments are closed by a lid or cover g adapted to seal by means of a rubber &c. washer h the compartments not in use, and provided with openings g<1> forming a grid 'which allows the escape of gas from the compartment in use while preventing the escape of carbide; when the carbide in this compartment is exhausted, the carbide holder is rotated to bring another compartment into position, and for this purpose lines or projections are provided on the carbide holder and water chamber. The lower part of the generator may be divided by radial partitions and constitute the carbideholder; or the latter may be separate, in which case it is provided with ribs c<3>, Fig. 2, to engage corresponding grooves in the outer case so that the parts rotate together. In the construction shown in Fig. 1, the carbideholder is provided with a central passage to receive the valve-plug f attached to the drip-pipe m and provided with a radial passage f<2> which can be brought opposite either of the openings e communicating with the several compartments of the holder: a perforated shield plate d, Fig. 8, removable for cleaning, serves to distribute the water to the carbide. Or the plug f may be arranged as shown in Fig. 6 to bear on the upper face of the cover, the passage then communicating with an eccentric opening in the latter. The parts of the generator are secured together by the usual bail, not shown, or by a nut p, Figs. 8 and 9, screwed to a rod n carried by the plug f; and the cover f may be formed so as to constitute a partition between the two main parts of the generator, for example as shown in Fig. 8, in which it is carried on a shoulder of the plug f in this case secured to the drip-pipe, or as shown in Fig. 9, in which case it is secured to the water-chamber by external fastenings consisting of clips t carried on pins t<1> and engaged by nuts s; in the latter construction the plug f is integral with the cover g. The removable shields d may be constructed so as to form the carbide holders which, when lifted out of their compartments, can be opened out or have their sides removed to facilitate cleaning.
Patent GB-164172-A (GB)
Title: Improvements in the application of trousers presses to wardrobes and such like
IPC: A47G25/72
Filed: 1920-03-19
Abstract: 164,172. Everitt, J. March 19, 1920. Wardrobes.-A trouser press is supported in a wardrobe by a hinged rod g<2>, g<3> on which it is slidably mounted by means of brackets i<2> having gaps j for the purpose of passing over the bars c<2>, c<3>, which support the rod. The press normally hangs downward in the wardrobe but may be drawn out on the unfolded rod, turned into the horizontal and supported at its other end on a telescopic rod l.