baber/WOPTO huggingface dataset:
Patent GB-1527564-A (GB)
Title: Switchable fuse socket
IPC: H01H9/10
Filed: 1977-04-19
Abstract: The fuse base, which is designed from two identical housing halves (1), for a fuse link (8) which is provided with end-contact caps (15, 16) contains a switch (6) by means of which the power supply to the base contact (15) of the fuse link can be interrupted. The mechanism of the switch is provided with a locking device (11) by means of which the switch is blocked in its "off" position when the fuse link is unscrewed or is not completely inserted. <IMAGE>
Patent GB-771003-A (GB)
Title: Improvements in or relating to transistor oscillator circuit arrangements
Inventor: LIGHT LEON HENRY
IPC: H02M7/5383
Filed: 1954-06-02
Abstract: 771,003. Transistor generating circuits. MULLARD RADIO VALVE CO., Ltd. May 3, 1955 [June 2, 1954], No. 16329/54. Class 40(6) In a relaxation oscillator, an inductor is arranged in the emitter collector circuit, the base current being varied by a voltage derived over a rectifier from the oscillations to cut off the collector current, the base current not being derived from the oscillation energy. The inductor 5 forms the primary of a transformer having a secondary 7 connected to the base of the junction transistor 1 over a rectifier 8, the base being connected to a tapping on the battery 10 over resistor 9. When the circuit is energized, the transistor conducts so that the emitter-collector potential drop is small and most of the battery voltage appears across the inductor 5. The induced negative voltage in winding 7 biases off the diode 8 so that the collector current continues to increase. The current builds up until the knee of the collector current/voltage curve is reached when the rate of rise of collector current falls. The negative bias on the rectifier 8 continues to fall until it conducts, thereby causing a reduction in the base current which results in a fall in the collector current. This process is cumulative and the transistor cuts off. A large negative voltage appears at the collector and may be rectified to provide a high voltage D.C. When the energy stored in the inductor 5 is dissipated the base potential falls and current flows through resistor 9 again to complete the cycle. The power removed from the battery 10 may be varied by adjustment of resistor 9 or the tapping on battery 10 and the base current may be maintained more nearly constant by the use of a separate battery. A further resistor may be included in series with the emitter to assist in the cutting-off action, and a small negative voltage may be applied in series with winding 7 to assist in the switching-on action.
Patent GB-210354-A (GB)
Title: Improvements in or relating to universal couplings, and to the manufacture thereof
IPC: F16D3/78
Filed: 1923-06-25
Abstract: 210,354. Alpe, R. J. June 25, 1923. Universal ioints. - In universal joints for motor vehicles &c. of the type comprising a rubber, vulcanized fibre, or other non-metallic flexible disc or annulus, the disc is reinforced with cord, string, or yarn wound in crossed formation in superposed layers so as to permit the disc to stretch without permanent distortion when deflected. The cord &c. e, preferably a pure Egyptian cotton cord of, say, 15 lbs. tensile strength and impregnated with rubber solution, is wound in one continuous length on a frame comprising a circle of pins b upstanding from a base a, on which are arranged also four or six large pegs c, corresponding to the spider bolts, and smaller pegs d, corresponding to the rivets for attaching strengthening-plates. The cord e is wound in each layer in the form of loops e' running parallel to a line joining a pair of alternate pegs c, adjacent layers having the loops at an angle of 60‹ to one another or, when four bolts only are used, at 90‹, so that there are left a central space f and spaces g of approximately lozenge or rectangular shape between adjacent pegs. The reinforcement, when wound to the desired thickness, is removed from the frame and dried on a jig having pegs to ensure accurate spacing of the bolt holes. The winding is sandwiched between discs of, and surrounded by a strip of, rubber, the spaces being also filled with pieces of rubber, and the whole is vulcanized under great pressure. The finished disc or annulus is provided with strengthening-plates around the bolt holes. A lozenge-shaped, rubber-filled space q, Fig. 9, assumes under tension the shape shown in Fig. 10.
Patent GB-318570-A (GB)
Title: Improvements in anti-dazzle devices
IPC: B60Q1/14
Filed: 1928-06-06
Abstract: 318,570. Hyde, A. C., and Levy, L. A. June 6, 1928. Anti-dazzle screens.-To prevent the eyes of a vehicle driver from being affected by the glare of approaching headlights &c. a compound non- splinterable sheet or plate of transparent materials such as glass, celluloid, mica &c., one or more elements of which has applied thereto a film of gold, platinum, palladium, copper or other metal, is employed in the construction of the windscreen, or anti-dazzle screen, through which the driver views the road. The density of the film as applied to a screen may vary at different parts so that the driver may control the shading effect by movement of his head. According to one construction a thin layer of gold is deposited on one side of a sheet of glass, and a second sheet of clear glass is cemented thereto with the gold surface between the two sheets. In another construction two sheets of glass, to one of which a layer of metal has been applied, may be cemented on opposite sides of a sheet of celluloid; or two sheets of clear glass may be cemented to opposite sides of a sheet of coated celluloid. According to the Provisional Specifications the metallic film may be applied to a single sheet of glass &c.
Patent GB-294748-A (GB)
Title: Improvements in or relating to bathing caps and the manufacture thereof
IPC: A42B1/12
Filed: 1927-06-21
Abstract: 294,748. Macintosh & Co., Ltd., C., and Warren, F. W. June 21, 1927. Caps; waterproof. - An india-rubber bathing cap is provided with an inwardly - projecting rib or flange located around the base of the cap, the rib c having an extent of projection greatest at the sides of the cap adjacent the ears of the wearer and diminishing or tapering away to the part or parts situate at the nape of the neck or the forehead, or both, so that at such part or parts the rib is interrupted, leaving only the plain surface of the cap.
Patent GB-314981-A (GB)
IPC: F25B49/04
Filed: 1929-05-28
Abstract: 314,981. Deutsche Gasgluhlicht- Auer-Ges. July 6, 1928, [Convention date]. Refrigerating, absorption machines for. - The circuit 7 of the heating element 5 of the generator-absorber 2 of a small domestic machine is controlled by a manual switch 6, a switch 3 controlled by a thermostat in or near the evaporator 1, and a. further switch 4 controlled by a thermostat in the generator-absorber. The switches may be reversible mercury switches actuated by expansion members, and the thermostats are set so that the evaporator thermostat closes the circuit and the generator-absorber thermostat opens the circuit at moderate upper limits, whereby frequent heating and cooling periods are secured. The Specification as open to inspection under Sect. 91 (3) (a) comprises also control of the circuit by clockwork set to secure frequent reversals. This subject-matter does not appear in, the Specification as accepted.
Patent GB-876079-A (GB)
Title: Halogen-substituted amidoximes and manufacturing process
Inventor: D ALO' GIORGIO
IPC: C07C259/14
Filed: 1960-05-10
Abstract: The invention comprises compounds of the formula <FORM:0876079/IV (b)/1> wherein n is an integer between 1 and 4 inclusive and X is a halogen atom, and the preparation thereof by reacting a corresponding halogeno-phenyl-alkyl cyanide with a hydroxylamine salt in the presence of a base.  The products are hypotensive agents.  b -(o-Bromophenyl)-propionitrile is prepared by dehydrating the corresponding propionamide.  o-Bromophenylacetamide is a by-product of the treatment of o-bromobenzyl cyanide with hydroxylamine hydrochlorate in the presence of sodium ethoxide.
Patent GB-881319-A (GB)
Title: Composite brushing element
Inventor: PETERSON RUBEN OLOF
IPC: A46B13/00
Filed: 1960-05-11
Abstract: 881,319. Brushes. OSBORN MANUFACTURING CO. May 11, 1960, No. 16641/60. Class 19. In a method of making a brush a length of brush strip having an elongated back with a layer of brush material extending therefrom is formed and a layer of uncured elastomeric material is included substantially coextensive therewith, the brush strip assembly being enclosed and heated first to soften and intrude the elastomeric material into the brush material and then to cure the elastomeric material. As shown in Fig. 1, a layer of bristles 4 with a band 5 of elastomeric material thereon is layed transversely to a metal strip 1 having punched teeth 2, 3 and a wire 6 is placed on the band 5 so that when the strip 1 is formed into a channel the teeth 2, 3 overlie the wire 6 which secures the band 5 and the bristle layer 4 in place. A length of brush strip so formed may be helically wound on a mandrel 7, Fig. 2, and clamped between plates 8 and 9. A shaped steel band 11 may then be wound closely about the brush face and the assembly placed in an oven. Alternatively, the brush strip may be cut and formed into annular sections 14, Fig. 3, which may be stacked around a mandrel 12 attached to a base plate 13. Metal discs 16 are placed between the brush sections and an end disc 17 is pressed down to compact the stack and secured. A split cylindrical shell 19, 20 may be clamped about the assembly which is subsequently placed in an oven. The brush material, e.g. wire preferably has a Knoop hardness in excess of 600. The elastomeric material may be rubber, or neoprene having a blower which on heating produces a spongy layer which is more easily erodable than the bristles. The elastomeric material may have an abrasive embedded therein. A number of elsatomeric materials and abrasives are described. Specifications 637,322, 645,407 655,262, 839,777, 839,778 and U.S.A. Specification 2,091,995 are referred to.
Patent GB-713085-A (GB)
Title: Improvements in and relating to fluid controlling valves
Inventor: JARRETT CHARLES ROY
IPC: F16K31/12
Filed: 1951-07-13
Abstract: 713,085. Fluid-pressure servomotor-control systems. SAUNDERS VALVE CO., Ltd. July 14, 1952 [July 13, 1951], No. 16668/51. Class 135 A diaphragm valve comprises a diaphragm closure member movable to closed position by upstream pressure applied above a piston 2, under the control of a device 7, should the pressure fall below a predetermined value, the device then being locked to prevent re-opening of the valve if the pressure rises. The device comprises an auxiliary valve having a seat 26 and a closure member 27 which is urged away from its seat by an adjustable spring 13 and towards its seat by the upstream fluid pressure acting through passage 23 on a diaphragm 9. The auxiliary valve when open connects passage 23 to a passage 22 leading to the cylinder 3 above piston 2. Thus, if said pressure falls, spring 13 moves member 27 off its seat and is then aided by said pressure acting on a diaphragm 11, smaller than diaphragm 9, to fully open the auxiliary valve and hence cause seating of the diaphragm closure member. An exhaust valve controlling the outlet of passage 22 comprises a closure member 35 urged to its seat 34 by a spring 38 and movable off its seat by the action of a hand lever 54 on a stem 48. When 'both auxiliary and exhaust valves are closed and main diaphragm valve open, the lever is approximately vertical and a cam 55 on its arm 53 contacts a stem 15 extending from diaphragm 9. When the auxiliary valve opens, the lever pivots anticlockwise under its own weight or spring action to cause cam 55 to prevent closure of the auxiliary valve should the pressure subsequently rise. A plug 29 also engages a shoulder 52 on stem 48 to prevent opening of the exhaust valve. To open the main valve, lever 54 is pivoted clockwise to permit the auxiliary valve to close if the pressure is sufficiently high and, on closure of said valve, further movement of the lever opens the exhaust valve whereby line pressure acting on the main closure member moves it to open position. A second exhaust valve 69 is opened by piston 2 when in raised position to exhaust any fluid leaking past the auxiliary valve. Should the pressure fall while the exhaust valve member 35 is held in open position, sufficient movement is still available to the plug 29 to allow the auxiliary valve to open, and the flow through the exhaust valve is less than that through the auxiliary valve so that the diaphragm valve will reclose. Specifications 559,679 and 562,084 are referred to.
Patent GB-146112-A (GB)
Title: Improvements in telepathic appliances for amusement
IPC: A63F9/18
Filed: 1920-06-21
Abstract: 146,112. Fuld, W. Jan. 24, 1914, [Convention date]. Telepathic, automatic, and like messages, indicating.-An appliance moved by the touch of the hand so as to indicate letters, numerals, or symbols marked on a board such as that shown in Fig. 1 comprises an opaque table B with a central recess wherein is located a transparent glass disk 5 carrying a pointer 7. The legs of the table are tipped with felt 8. As the table is moved about the board, the operators can observe the indications of the pointer 7 through the disk 5.
Patent GB-322992-A (GB)
Title: Improvements in pumps
IPC: F04D7/04
Filed: 1929-06-01
Abstract: 322,992. Kraut, M. June 1, 1929. Worm fans and pumps; helico-centrifugal apparatus.-A combined centrifugal and screw pump of the overhung type has helical vanes 23 attached to a hollow conical extension 22, the base of which 24 forms part of an impeller 25. Fluid admitted through a pipe 14 to an annular space 15 passes by way of a number of ports 16 to the impeller 25 and projected outwards is picked up by the conical helix and delivered at the apex 18 into pipe 20. The runner is driven by a pulley 13 attached to a shaft 12 resting in bearings 9, 10, 11. Fluid leaking into the hollow cone is drained through holes 30 when the runner is stationary or impelled through them when the pump is in motion. The pump may operate with the shaft either horizontal or vertical.
Patent GB-1008592-A (GB)
Title: Production of substituted phenols
Inventor: MILLWARD BRIAN BEARD
Filed: 1963-04-30
Abstract: An ortho-substituted phenol is made by heating a phenol having at least one unsubstituted ortho position with an olefinic hydrocarbon or a nuclear substituted styrone at a temperature of at least 150 DEG C. in the presence of a borate ester and in the absence of a substance effective as a catalyst for the isomerization of ortho-hydrocarbon-substituted phenols to para-hydrocarbon-substituted phenols.  The process may be applied to phenol, cresols, polyhydric phenols such as resorcinol and hydroquinone, the naphthols and substituted phenols which have an ortho position free, the substituents being halogen, alkyl, cycloalkyl, alkoxy, aryl, aryloxy or carboxylic groups.  The olefinic hydrocarbons include straight and branched chain monoolefins generally, cyclic olefins, and aryl substituted olefins, examples being ethylene, propylene, butylenes, amylenes, diisobutylene and propylene tetramer; cyclohexene, styrene, a -methyl styrene, vinyl toluene and chlorostyrene. Preferred borates are aryl borates, especially triaryl borates, or alkyl or aralkyl borates.
Patent GB-956824-A (GB)
Title: Improvements in or relating to the moulding of contact carrier assemblies
IPC: H01H11/00
Filed: 1962-05-03
Abstract: 956,824. Moulding contact carrier assemblies. BROOKHIRST IGRANIC Ltd. May 3, 1962 [June 30, 1961], No. 16994/62. Heading B5A. [Also in Division H2] During the moulding of a contact carrier assembly 34 comprising a magnetically responsive armature 32 embedded in a moulded body, the armature 32 is held in one mould member 14 by magnetic means 20 and clamped between the mould members 10, 14 when the mould is closed. -A pad 28, vertically movable in the upper mould section 10 and biased downwards (limited by a stop 30) by spring or hydraulic means, is provided for the clamping. The mould cavity is wider near the armature end to allow for the shrinkage of the moulding material. The armature 32 consists of a plurality of laminations of magnetic material held together with rivets 38 and perhaps having notches or holes for the moulding material to grip. Contacts 54 (Fig. 12) are spring-loaded on moulded projections 56, each in a window 52 in the body of the assembly 34. The windows 52 are mutually insulated by dividers 86 having grooves 88. The assembly 34 is shown as part of a relay in Fig. 12, being pulled during operation against a spring 84 by the attraction between a coil 74 and the armature 32. Ribs in the relay casing fit in the grooves 88. The particular embodiment is a process of transfer moulding but compression, thermosetting and injection moulding are also mentioned.
Patent GB-142361-A (GB)
Title: Improvements in means for improving the draught in open fire grates
IPC: F24B1/19
Filed: 1919-07-08
Abstract: 142,361. Marguet, J. C. C., and Harris, F. July 8, 1919. Blowers or draw-plates.-The device is of truncated pyramidal form with its top entering the mouth of the chimney, and is composed of sheetmetal plates a, b, one sliding within the bentover edges of the other so as to provide adjustment of width. Fig. 1 shows a blank for one of the plates with the portion a' to form a slide piece and a portion a<2> to be bent inwardly to serve as a foot. In a modification, a third plate lies in front of the other two to allow cf further adjustment in width. In both cases each plate carries a handle f and there are connecting-chains e.
Patent GB-1018312-A (GB)
Title: New telomers and process for their production
IPC: C08F18/20
Filed: 1964-04-24
Abstract: Telomers of formula <FORM:1018312/C3/1> in which Y and Z stand for atoms and atomic groups originating by splitting a ketone, X is chlorine or hydrogen, R1, R2, R3 and R4 ar hydrogen, halogen or organic substituents containing together up to 30 carbon atoms, n and n are small numbers of value at least 1, the sum of n and m-1 being not less than 1 and not more than 50, the order of the structural unity being optional, are prepared by reacting one mol. of a ketone with n mols. of a bis 2-chlorallyl phthalate and/or allyl 2-chlorallyl phthalate, optionally together with m-1 mols. of a compound of formula R1R2C = CR3R4, preferably in the presence of a radical forming catalyst. The bis chlorallyl and allyl chlorallyl esters of phthalic, isophthalic and terephthalic acids may be used as taxogen and many suitable cotaxogens are specified including olefins and halogen-substituted olefins, vinyl aromatic compounds, vinyl ethers, esters, amides and nitriles of unsaturated acids, unsaturated epoxy compounds and esters of alkenols and substituted alkenols. Specified telogens are acetone, methyl ethyl ketone, methyl isopropyl ketone, diisopropyl ketone, methyl isobutyl ketone, diisobutyl ketone, cyclopentanone and cyclohexanone.  Other telogens, e.g. halogenated hydrocarbons, aldehydes, alcohols, phosphites and phosphates, may also be present. Preferred catalysts are hydrazine derivatives, organometallic compounds, azo compounds and peroxides, but telomerization may also be effected in the presence of cationic and anionic catalysts and actinic radiation.  Preferably telomerization is effected in the presence of an acid, e.g. p-toluene sulphonic acid, and in a liquid medium which may be excess telogen. The telomers may be stabilized with iron salts or hydroquinone, and used for moulding, casting, coating and laminating, if desired after compounding with conventional ingredients, e.g. aminoplasts, phenoplasts, epoxy resins, polyacetals, fillers, pigments, stabilizers and peroxide hardeners.  Examples describe the telomerization of (1) to (3) bis 2-chlorallyl phthalate with acetone and hydrogen peroxide; (4) bis 2-chlorally phthalate and diallyl phthalate with acetone and hydrogen peroxide; bis 2-chlorallyl phthalate with (5) methyl ethyl ketone; and (6) cyclohexanone and hydrogen peroxide; (7) and (8) allyl 2-chlorallyl phthalate with acetone and hydrogen peroxide; (9) bis 2-chlorallyl phthalate and styrene with acetone, hydrogen peroxide and p-toluene sulphonic acid; and (10) bis 2-chlorallyl phthalate and 2-chlorallyl ester of linseed fatty acids; (11) bis 2-chlorallyl phthalate and 2-chlorallyl ricinolenate; (12) bis 2-chlorallyl phthalate and 2-chlorallyl 2-ethylhexyl phthalate; and (13) bis 2-chlorallyl phthalate and 2-ethylhexyl acrylate in the presence of acetone, hydrogen peroxide and p-toluene sulphonic acid.  The telomer of Example 5 is mixed with a bis (4-hydroxyphenyl) propane/epichlorhydrin condensate and t-butyl perbenzoate and used to impregnate and laminate glass fibre fabrics.
Patent GB-960114-A (GB)
Title: Improvements relating to the manufacture of fastening elements
Inventor: WOODCOCK DONALD BERNARD
IPC: B21G3/30
Filed: 1961-05-11
Abstract: 960,114. Making nails etc.; rolling. G.K.N. GROUP SERVICES Ltd. Aug. 9, 1962 [May 11, 1961], No. 17170/61. Headings B3A and B3M. A method of producing fastening elements such as nails and pins comprises cold rolling rod-like stock between rolling surfaces each having a groove incorporating a head and a point forming portion, the point forming portion being provided with an obliquely extending ridge which serves to penetrate the stack to form point portions. Round mild steel, brass, or aluminium stock 16 is rolled to oval section in driven guide rolls 19 and then rolled between profiled rolls 21 to form a string of connected nails. The point portions of the stock are formed in a recess banded by ridges 30, excess metal, in the form of ribs 12, which are later removed, being accommodated in recesses 28. A shaped recess 33 banded by a ridge 34 forms the head portions. Several nail impressions are formed on each roll.
Patent GB-1486407-A (GB)
Title: Process for purifying sodium hydroxide
IPC: B03D1/02
Filed: 1976-04-28
Abstract: 1486407 Froth flotation ASAHI GLASS CO Ltd 28 April 1976 [28 April 1975] 17279/76 Heading B2H [Also in Division Cl] Aqueous solutions of sodium hydroxide containing soluble impurities are purified in a process comprising cooling the solution to form a slurry of sodium hydroxide hydrate crystals and fine impurity crystals, forming bubbles onto which the fine impurity crystals adhere by the introduction of a gas or vaporizable liquid, allowing these bubbles with the adhering crystals to float to the surface to form a foam and removing this foam containing the impurities. In an example sodium hydroxide containing sodium chloride as obtained during the electrolysis of brine by the diaphragm method is purified. The initial cooling of the solution may be achieved using a vaporizable liquid coolant e.g. a fluorochlorohydrocarbon, which is subsequently vaporized.
Patent GB-648482-A (GB)
Title: Aluminium solder and a method for the production thereof
IPC: B23K35/28
Filed: 1948-06-28
Abstract: A process for producing an aluminium solder, comprises fusing aluminium or aluminium alloy, fusing silver or silver alloy, mixing the two molten substances, leaving the mixture at least at the melting temperature of the silver, or that of the silver alloy if such is used, allowing the mixture to drop to the melting point of aluminium, or that of the aluminium alloy if such is used, and then slowly cooling the mixture.  70-95 per cent of aluminium or aluminium alloy may be combined with 30-5 per cent of silver or silver alloy. Suitable alloys are of the following composition: Al 79 per cent, Mg 11 per cent, Cu 9.5 per cent, P 0.5 per cent, and Ag 80 per cent, Sn or Zn 20 per cent.