baber/WOPTO huggingface dataset:
Patent GB-898870-A (GB)
Title: Portable container for use with liquid fuel distributing apparatus
IPC: F24C5/18
Filed: 1959-07-17
Abstract: 898,870. Portable tanks, filling and emptying. BRITISH PETROLEUM CO. Ltd., and PHILLIPS, R. M. July 1, 1960 [July 17, 1959], No. 24624/59. Class 21. [Also in Group XVIII] A portable container 14, Fig. 4, to be filled from below by a liquid supply pipe 4, has a valve 15 in its base and a fixed projection 16 adjacent the valve 15 such that when the container 14 is placed on the supply pipe 4 the projection 16 opens a valve 10 in the pipe 4 and the pressure of the liquid in the pipe 4 then opens the valve 15. The valves 15 and 16 may be biased by springs to the closed position. The pipe 4, Fig. 1, includes a meter 5 preset to deliver a fixed quantity of liquid, for example liquid fuel, through a coin-operated device 7. The liquid may be supplied via a pump started by the insertion of a key in a switch 8. A drain line 12 returns spilt liquid to a main tank 1. When delivery ceases the container 14 is removed and placed on a lower container 18, Fig. 3, the container 18 having a pin 20 that opens the valve 15 in the upper container. Liquid then flows into the lower container until the level therein covers some holes 21 in a recess 19 in the upper wall of the container. The lower container 18 has a feed line 22 to a fuel consuming appliance. Vents 17 and 23 and a level indicator 24 are included where shown. The vent 17 may be replaced by a pressure relief valve.
Patent GB-795845-A (GB)
Title: Production of nitrogen oxides
IPC: C01B21/20
Filed: 1956-08-13
Abstract: <PICT:0795845/III/1> Nitrogen oxides are prepared by confining in one portion of a reaction space a gaseous mixture of nitrogen and oxygen, and in another portion of the space a detonatable material preferably a mixture of hydrogen and oxygen.  The material is detonated and the detonation wave is impinged on the nitrogen-oxygen mixture, causing reaction.  Means of separating the detonating material from the reaction mixture, such as inert gases or a thin diaphragm, may be used.  In the preferred method of working the invention, hydrogen and oxygen are introduced into the reaction tube 1 by tubes 7 and 8, controlled by stopcock 9.  Nitrogen and oxygen are introduced through tubes 2 and 3, mixed in chamber 5, and enter the reaction tube via the copper coil 6, which prevents the shock wave entering the rest of the apparatus.  The hydrogen-oxygen mixture is detonated using electrical igniting means 12, and the products of reaction are withdrawn through tube 10 and valve 11.
Patent GB-1388154-A (GB)
Title: Photographic material useful in dye diffusion transfer processes
IPC: G03C8/00
Filed: 1972-05-25
Abstract: 1388154 Photographic silver halide dye diffusion transfer material EASTMAN KODAK CO 25 May 1972 [28 May 1971] 24717/72 Heading G2C A photographic assemblage comprises a photosensitive element comprising a support bearing at least one silver halide emulsion layer having associated therewith a non-diffusible coupler capable of reacting with oxidized aromatic primary amino colour developing agent to produce a diffusible dye, a dye image-receiving layer and a rupturable container retaining an alkaline processing composition, the assemblage containing an aromatic primary amino colour developing agent and a developing agent scavenger layer comprising an aldehydebisulphite addition product which may have the formula:- R-CH(OH)SO 3 M or MO 3 S-CH(OH)- (CH 2 ) n -CH(OH)-SO 3 M or be a polymer or copolymer having recurring units of the formula:- | -CH 2 -C(R)-CH(OH)-SO 3 M where R is H or optionally substituted alkyl; n is 1 to 6; and M is alkali metal or ammonium, and may be sodium formaldehyde or acetaldehyde bisulphite adduct or bis (sodium succinaldehyde or glutaraldehyde bisulphite) adduct. The photo-sensitive element may comprise red-, green- and blue-sensitive negative or direct-positive silver halide emulsion layers having associated therewith cyan, magenta and yellow non-diffusible couplers respectively. The dye image receiving layer may be coated on a separate support. The developing agent scavengerlayer may be located between the dye imagereceiving layer and its separate support (see Ex 1 to 5 and 14 to 16), on an opaque process sheet (see Ex 7 and 9), on a transparent process sheet (see Ex 11 and 13) or between the dye image-receiving layer and the nearest silver halide emulsion layer when there is only one support. A dye image-receiving material comprises a support bearing, in order, a developing agent scavenger layer comprising an aldehyde-bisulphite addition product and a dye image-receiving layer. A timing layer which may contain a light-reflective material may be present between the scavenger and image-receiving layers (see Ex 2.) The material may contain a pH lowering material e.g. in the scavenger layer (see Ex 1,2 and 14-16). Yellowish-brown stain in the image-receiving layer caused by aerial oxidation of unused colour developer present in the layer is reduced.
Patent GB-637552-A (GB)
Title: Machine for manufacturing buttons from sheet material
IPC: B21D53/48
Filed: 1947-09-09
Abstract: 637,552. Drilling, turning, and cutting-out buttons. HEIDEN, A. L. VAN DER. Sept. 9, 1947, No. 24747. Convention date, Sept. 13, 1946. [Classes 83 (iii) and 83 (iv)] A button-making machine comprises a spacing-mechanism from which a sheet 40 is suspended above a frame 1 on which the holedrilling devices 13, 14, the shaping device 18 and cutting-out device 17 are arranged, the sheet being moved stepwise along a guide block 16 fixed to the frame 1. The sheet is moved by means of a weight 54 and a pawl 49 engaging one of two racks 47, 48, the pawl being operated by cam or like means arranged on a shaft 23 driven from a motor-driven shaft 6. The tools are mounted on slides 15, 19 controlled by cams 24, 25 on the shaft 23. The spacing-mechanism is supported on pairs of vertical racks 71-74 co-operating with detents 76 provided on blocks 56, 57, the spacing mechanism being lowered, when desired, by means of handles 77. Each pair of vertical racks is hinged at 75 to a lever 69 pivoted to a fixed arm 67, the levers 69 being connected by a rod 68 so that by lowering the latter, the spacing-mechanism as a whole can be raised to enable it to be pushed back to the starting position. The sheet is pressed against the block 16 by means of a resiliently-mounted plate 32 connected to the slide 19. The cutout buttons are ejected by a resilientlymounted hollow spindle 39 connected to the slide 19. The cuttings are removed by suction.
Patent GB-728577-A (GB)
Title: Improvements in or relating to a support shelf for attachment to the head of a railway car coupler
IPC: B61G3/04
Filed: 1953-09-08
Abstract: 728,577. Automatic couplers. NATIONAL MALLEABLE & STEEL CASTINGS CO. Sept. 8, 1953 [Sept. 27, 1952], No. 24809/53. Class 103 (5). A shelf 10 having a knuckle-supporting surface 30 is attached to existing couplers and is retained in position by a boss 37 which engages the hole 26 in the coupler projection 23, a vertically extending lug 36 engaging the side of tha projection, and a vertically arranged boss 33 which enters the recess in the coupler below the knuckle pivot pin and is secured therein by a transverse pin. The shelf may alternatively be secured to the underside of a coupler by welding. Specification 660,410 is referred to.
Patent GB-1337446-A (GB)
Title: Method of producing synthetic resin foam
IPC: B29C44/42
Filed: 1971-04-19
Abstract: 1337446 Open-cell foams HIROSHIMA KASEI Ltd 19 April 1971 [13 Jan 1971] 24821/71 Heading C3C  An open-cell foam is produced by melting a thermoplastic synthetic resin composition with a foaming composition which contains short (as herein defined) fibre lengths with one or more blowing agents attached, machine casting the melt into a mould and cooling the cast melt to solidify it. The fibres may be natural or synthetic, examples disclosing the use of fibres of cotton. A number of chemical blowing agents, all conventional, may be used. They may be attached to the fibre by binding agents such as polyisocyanates or compositions containing them together with one or more of natural rubber, synthetic rubbers, polyurethane, chloroprene, nitrile-butadiene rubber, methyl methacrylate, and ethylene-vinyl acetate copolymer. Many thermoplastic resins may be used, the examples illustrate the use of polypropylene and polyvinyl chloride.  Plasticizers such as DOP or epoxy resins may also be present.
Patent GB-885144-A (GB)
Title: Method of producing shaped parts by sintering
IPC: C22C1/04
Filed: 1958-08-01
Abstract: A mixture of brass and more than 1% up to 20% by weight of iron powder is pressed at 2 to 6 tons per sq. cm. and sintered in hydrogen at 890 DEG  to 920 DEG C.  The atomised brass powders used have the following composition:- 85% Cu-15% Zn, 78,5% Cu-20% Zn-1,5% P6, 70% Cu-30% Zn and 60% Cn-40% Zn.  The powders are mixed with zinc stearate and preferably double pressed and sintered.
Patent GB-599517-A (GB)
Title: Improvements in or relating to safety devices for hand operated flat-irons adapted to be heated electrically
IPC: D06F75/26
Filed: 1945-09-26
Abstract: 599,517. Retractive switches; thermal switches. GAUNT, E. Sept. 26, 1945, No. 24924. [Class 38(v)] [Also in Group XXXVI] An adaptor for an electrically heated flat iron includes a switch, controlled by a lever which is operated to switch on the current when grasped with the handle of the iron or when the iron occupies an up-ended position on a support. A thermal control switch is also provided in the adaptor (see Group XXXVI). The lever is spring - anchored to a rock-shaft 9 provided with a flat 9A which causes resilient blades 17, 17A to abut contacts 19, 19A when the lever is operated. The thermal switch consists of a bimetallic strip 23 anchored at 23A to the adaptor casing 8 and is provided with an insulating block 24 disposed adjacent to a resilient contact blade 25 which is connected to a terminal 21 and contacts another blade 26. The blade 26 is depressed by a spindle 28 operated by a knob 27 and carrying a pin 29 abutting a cam track 30. A heat conducting blade 31 is connected with the strip 23 which when distorted into engagement with the blade 25 opens the circuit.
Patent GB-1375465-A (GB)
IPC: F16L58/06
Filed: 1972-05-26
Abstract: 1375465 Pipes BRITISH PETROLEUM CO Ltd 19 April 1973 [26 May 1972] 24933/72 Heading F2P A concrete or like weight coating 21 has a row of narrow annular slots 24 so that, when the pipe 23 is flexed slightly in laying under water, the coating 21 does not crack. A steel pipe 23 has an anti-corrosion coating 22 of coal tar enamel and fibre glass. In moulding the coating 21, spacers are positioned in the mould to form the slots 24 and steel reinforcement mesh 25, 26 is arranged to lie in the centre of the coating. The slots 24 may be filled with rubber or polyurethane foam. Alternatively, the slots 24 may be cut after the concrete has set. Instead of concrete, resin bonded aggregate or bitumen aggregate may be used as the weight coating.
Patent GB-507659-A (GB)
Title: Electrical indicating systems and apparatus
IPC: G01F23/36
Filed: 1937-09-14
Abstract: 507,659. Current and voltage measurements. ANDERSON CO. Sept. 14, 1937, No. 24980. Convention date, Sept. 15, 1936. [Class 37] [Also in Group XXXVIII] In a system for indicating the level of a liquid or the pressure of a fluid in which the transmitter and indicator each include a bimetallic element wound with a heating coil, a series circuit through the coils being completed by contact between the bimetallic element at the transmitter and a member controlled by the liquid level or fluid pressure, the transmitter is provided with a shunt resistance of suitable value to correct for variations of response occurring in manufacture. The bimetallic elements are arranged to compensate for changes of atmospheric temperature. Indicator, Figs. 2, 4, 7. The bimetallic element which is sup ported by a pillar 27 on a plate 22 is of U -shape and its upper limit is wound with a coil 31 and terininates in a hook 29 at its free end. An arm 25 supported on a pillar 24 on a plate 21 terminates in a hook 26. The two hooks are threaded through a slotted plate 36 which carries a pointer 20 outside the casing, so that the pointer follows the warping of the upper limb of the element 28. By introduction of a tool through apertures 40, 42 the plates 21, 22 may be moved about their pivots 23 to effect adjustment. A modified construction shows a different method of mounting the bimetallic element, and the arm 25. Transmitter, Figs. 13, 15, 18. When controlled by the level of a liquid, a downward extension 158 of a copper strip 157 is moved by a lever 125 which is suspended from a diaphragm 128 and is capable of limited deflection in accordance with the fall of a float 123. When controlled by Buid pressure, the extension 158 is moved directly by a diaphragm. The strip 157 is mounted on pillars 155, 156 and supports a bimetallic strip 159 having at its end a contact 160 which co-operates with a contact 167 carried by a second bimetallic strip 166 supported by a copper strip 165 and wound with a coil 169 connected at one end to the strip 166 and at the other end to a copper strip 162. The strips 162, 165 are mounted on the pillars 155, 156 and are insulated from each other and from the strip 157. The strip 162 is connected to the outgoing lead 112 by an upward extension 163, while the circuit through the strip 165 is completed through a screw contact 173. Upward extensions 164, 168 from the strip 165 form spring clips for supporting a resistance unit 170 shunting the heating coil 169. When the strip 159 is moved upwardly the heating circuit is closed at contacts 160, 167 and is maintained until the strip 166 has warped sufficiently to break the circuit, the duration being dependent on the pressure between the contacts. Adjustment. The transmitter is tested in conjunction with a master indicator, and a shunt resistance is chosen to give a slight over-. reading, which is then corrected by adjustment of the screw contact 173.
Patent GB-936683-A (GB)
Title: Improvements in or relating to road constructing machinery
IPC: E01C19/18
Filed: 1960-07-18
Abstract: 936,683. Distributing road working materials. A.B.G.- WERKE G.m.b.H. July 18, 1960 [April 20, 1960], No. 25027/60. Class 107. In a bucket distributer for road making materials of the type which operates on side forms and comprises a frame 1 which supports a pair of transverse rails 9, 10 along which the bucket is traversed when distributing materials from an aperture 27 in its base, the bucket and an attached shoot 20 and feed hopper 19 are mounted in a frame 18 which can be tilted by hydraulic rams 22 from its distribution position to a position in which the hopper may receive a load of new material from an end-tipper lorry positioned in advance of the distributer. Means are also provided for adjusting the height of the bucket relative to the frame 1 so as to vary the thickness of the distributed layer.
Patent GB-370321-A (GB)
Title: Improved process and device for making acoustic registrations on record blanks
IPC: G11B3/08
Filed: 1931-09-07
Abstract: 370,321. Electric hot plates. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Sept. 7, 1931, No. 25064. Convention date, Sept. 9, 1930. [Class 39 (iii).] A body 4 provided with two discs 5, 6 is mounted on a turntable 3, and the disc 6, which carries the sound record blank 8 is furnished with a cavity housing electric heating means 9. The heating means can be connected to a current source by plug pins 11 mounted in the disc 6 and is arranged between two asbestos layers 10, the upper layer being covered by a plate of mica 12.
Patent GB-484447-A (GB)
Title: Duplicating finely contoured surfaces such as phonograph record matrices
IPC: G11B3/70
Filed: 1937-09-15
Abstract: 484,447. Duplicating sound-records ; making metal dies ; coating with metals. ELECTRICAL RESEARCH PRODUCTS, Inc. Sept. 15, 1937, No. 25074. Convention date, Oct. 3, 1936. [Class 40 (ii)] [Also in Groups II and XXII] In the production of a die or matrix for moulding duplicates of a finely contoured surface, such as that of a gramophone record disc 10, Fig. 2, the vapour of a hard, corrosionresistant metal, such as chromium, is condensed on the contoured surface to form the surface layer of the die, and in order to render this layer electroplatable to receive a mechanically strong backing layer 15 of copper, the vapour of the latter metal is introduced in increasing amount into the chromium vapour, in order to deposit a layer 18 of chromium-copper alloy, and the proportion of chromium vapour is then reduced gradually until pure copper 14 only is deposited. The process is carried out in a chamber 19, Fig. 4, provided with an airpump 29 and containing two heating elements 35 in the form of tungsten wires on the surfaces of which the respective to be vaporised have been deposited. The wax record or the like 22 is secured to the lid of the apparatus, which is formed with openings 26, 27 to permit circulation of a suitable cooling liquid, and the pump is operated until the pressure within the chamber is of the order 10<-3> to 10<-7> m.m. of mercury. Current is first supplied, to the chromium heating-coil ; then, after a sufficient period of time, to the copper heating coil, and after a further suitable time interval the current to the chromium heating-coil is cut off. When a sufficient thickness of pure copper has been deposited the record is removed and the backing layer of the die deposited electrolytically in known manner. Instead of using chromium and copper in the process nickel and iron. or gold and copper may be employed. Specifications 374,447 and 378,355, [both in Group XXXVI], are referred to.
Patent GB-383342-A (GB)
Title: Improvements in or relating to electric lamps
IPC: H01J61/54
Filed: 1931-09-07
Abstract: 383,342. Discharge lamps. ZAIDANHOJIN AOYAGI KENKYUSHO, 9, Nishikujoincho, Shimokyo-ku, Kyoto, Japan. Sept. 7, 1931, No. 25120. Convention date, Sept. 22, 1930. [Class 39 (i).] In arc lamps in which a heater F<1>, F<2> and normally closed contacts C are shunted across the main electrodes B all within an envelope V containing inert gas at low pressure and in which a bimetallic strip D or other means opens the contacts C when current flows through the heater, the spark produced at the contacts starts a glow which travels to the electrodes B to start the arc between them. The heater may comprise two filaments F\ F<2> forming a V with arms diverging towards the electrodes B, the glow travelling down the arms. The envelope V may contain argon with mercury M added to produce ultra-violet rays and the electrodes B may be tungsten balls. A voltage drop after starting is produced by a resistance R or inductance or by supplying the lamp through a leakage transformer with a drooping characteristic.
Patent GB-1223157-A (GB)
Title: Mechanism for varying the phase relation of two eccentric weights
IPC: E02D3/074
Filed: 1968-05-27
Abstract: 1,223,157. Vibrators; chain gearing. DELMAG - VERWALTUNGS G.m.b.H. 27 May, 1968 [27 May, 1967], No. 25177/68. Headings F2Q and F2X. The phase relation between two eccentric masses 4, 5, Fig. 2, connected to drive wheels 6, 7 so as to rotate in opposite directions is varied by moving two reversing wheels 11, 12, transmitting the drive by a chain 8 from one wheel 7 to the other wheel 6, equally in opposite directions by two racks 13, 14 engaging opposite sides of a gear 15. In another embodiment, Fig. 3, the reversing wheels 11a, 12a are rotatable on the ends of levers 31, 32 and are engaged by the forked ends of a lever 34 pivoted on an axially adjustable pivot 35 and rotated by for example a cable 37 to move the wheels 11a, 12a equally in opposite directions. Alternatively the levers 31, 32 may be replaced by levers shown in dotted lines or the wheels 11a, 12a may be rotatable on the ends of the lever 34, the levers 31, 32 guiding the wheels 11a, 12a or being dispensed with.
Patent GB-170998-A (GB)
Title: Improvements in machines for sharpening saws
IPC: B23D63/14
Filed: 1920-09-01
Abstract: 170,998. British Saw Sharpening Machines, Ltd., and Dwyer, D. A. Sept. 1, 1920. Saws, sharpening. - A h a n d - operated saw - sharpener, in which a power - driven grinding wheel e, Fig. 2, follows the contour of the sawteeth, comprises a grinding-wheel carriage c slidable upon bars b, b<1>, a cup and cone i on which the saw is mounted, and a saddle f adjustably secured to the bars b, b<1>. The carriage c is moved towards the saw, against the pull of a spring c<1>, by a lever d contacting with a stud d' on the carriage. The saw is fed forwards by a cranked hand-lever g pivoted at g<1> to the saddle f. The lever g operates a lever g<6> pivoted at g<7> and carrying a spring-pressed arm g<9>, on the end of which is a pin g<11> engaging the saw-teeth. A roller g<3> on the crank g<2> of the lever g moves over an adjustable cam e' fixed to the carriage c and causes the grinding-wheel e to move over the back of the teeth in a path determined by the shape and position of the cam e<7>. Adjustable stops f<3> on the frame f limit the movement of the lever g, and a stop h<1> secured to the rod b <1> limits the depth of cut of the grinding-wheel. The cup and cone i, Figs. 2 and 3, is adjustable cross-wise of the machine on a rod k so as to vary the under-cut of the teeth. The rod k is rotatable about the rod b, and can be clamped by a nut k<1> so as to give the required set to the teeth. An arm f<7> attached to a rod f<5> slidable under the action of a spring in an arm f<4> of the saddle f, presses on the saw and steadies it. The machine can be adapted to sharpen band and flat saws.
Patent GB-1434583-A (GB)
Title: Monitoring of web or sheet feeding apparatus
IPC: G03B27/14
Filed: 1973-05-29
Abstract: 1434583 Feeding sheets HARPER & TUNSTALL Ltd 29 May 1974 [29 May 1973] 25524/73 Heading B8R Originals being fed into a copying machine are monitored by a mechanically-actuated switch 40, located between endless belts 10, 20 at a point where one or more of the belts is diverted by a spindle 50. Either the leading or trailing edges of the originals may be monitored, and the output of the switch may be used to initiate co-ordinated feeding of photo-sensitive paper.