baber/WOPTO huggingface dataset:
Patent GB-1192884-A (GB)
Title: Spindles for Door Handles
Inventor: HOLDEN ERNEST JOHN
IPC: E05B3/08
Filed: 1968-03-04
Abstract: 1,192,884. Handle spindles for locks and latches. E. HOLDEN & CO. (B'HAM) Ltd. 25 Feb., 1969 [4 March, 1968], No. 10325/68. Heading E2A. A spindle 10 for a door handle is provided with at least one protrusion 13 and on one of its corners or sides which protrusion extends over the region of the spindle which engages a part of a lock or latch mechanism when in use, the protrusion being shaped to bear upon or deform the part of the lock or latch mechanism. As shown, protrusions. 13 are formed at diagonally opposite corners by grooving the spindle at 14.
Patent GB-358444-A (GB)
Title: Process for the production of emulsions rich in fat
IPC: A23L9/20
Filed: 1930-04-01
Abstract: Artificial cream and other emulsions rich in fat are made by using as protective colloids concentrated protein solutions such as concentrated whole or skimmed milk or natural solutions of other phospho-proteins to which may be added dissolved proteins, preferably globulins and albumen.  The oil or fat is added gradually with stirring to the protein solution and the mixing, when effected by simple stirring, may be at a temperature at which the fat is liquid. With some kinds of emulsifying machines the mixture may be effected at below the melting-point of the fat.  A fat having the desired melting-point may be prepared by melting together oils and hard fats which may be obtained by hardening oils.  In making artificial cream, for example, arachis oil and hard fat are mixed to give a product having the melting-point of milk fat, and this mixture may be sterilized before use by heating at 100 DEG  C.  The fat is added at above 30 DEG  C., preferably 40 DEG  C., to milk evaporated preferably under vacuum at 50-60 DEG  C. and containing 50-70 per cent of fat.  Milk or water is added during addition of the fat to keep the mixture at suitable consistency. After thorough stirring the mixture is homogenized while hot.ALSO:Artificial cream and other emulsions rich in fat are made by using as protective colloids concentrated protein solutions such as concentrated whole or skim milk or natural solutions of other phospho-proteins to which may be added dissolved proteins, preferably globulins and albumen.  The oil or fat is added gradually, with stirring, to the protein solution and the mixing, when effected by simple stirring, may be at a temperature at which the fat is liquid.  With some kinds of emulsifying machines, the mixture may be effected at below the melting point of the fat.  A fat having the desired melting point may be prepared by melting together oils and hard fats which may be obtained by hardening oils. In making artificial cream, for example, arachis oil and hard fat are mixed to give a product having the melting point of milk fat, and this mixture may be sterilized before use by heating at 100 DEG  C. The fat is added at above 30 DEG  C., preferably 40 DEG  C., to milk evaporated preferably under vacuum at 50-60 DEG  C. and containing 50-70 per cent of solids.  Milk or water is added during the addition of the fat to keep the mixture at a suitable consistency.  After thorough stirring the mixture is homogenized while hot.
Patent GB-234789-A (GB)
Title: Improvements in oil-break electric switches and the like
IPC: H01H33/75
Filed: 1925-04-21
Abstract: 234,789. Forges et Ateliers de Constructions Electriques de Jeumont. May 27, 1924, [Convention date]. Oil switches.-The fixed and movable contacts D. C, Fig. 1 are situated at the bottom end of a funnel extension L of an oil-container N, and just above the level of oil in a pipe M with a flared end communicating with the closed expansion chamber K, which may be filled with inert gases, and communicate with the atmosphere through adjustable valves. The gases formed when the, air is drawn escape easily into the chamber K. In the developed form shown in Fig. 2, the movable contact is in the form of a hollow tube A containing a spring pressed subsidiary contact D of the stationary contacts D, B. On opening the switch, the tube A rises leaving the contacts C and D in contact until the pawl H keeping the contact carrying rod E is tripped by the bottom of the slot in the tube A through which the pawl projects when C snaps away from D. The chamber K is shown with adjustable outlet valve 0, filling tap T, baffles P and a coil j in a reservoir to heat the oil. The incoming current passes round horse-shoe shaped magnets d, d' and an overload, these compress the parallelogram g between them to trip the circuit-breaker.
Patent GB-845246-A (GB)
Title: Improvements in or relating to the manufacture of shell moulds and cores
Inventor: ALMOND EDWARD GEOFFREY
IPC: B22C1/16
Filed: 1958-04-01
Abstract: Foundry shell moulding compositions comprise (a) a thermoplastic novolak resin or (b) a phenolic thermosetting resin. Specific examples are, by weight, (1) novolak resin 200 mesh 20 parts, silica flour 180 parts aluminium powder 200 mesh 4 parts mineral oil 20 parts heavy naphtha 130 parts (2) micaceous iron ore 100 parts, novolak resin 20 parts (3) Congleton silica sand 96 parts, novolak resin + 10% hexamine 4 parts (4) sand 100 parts novolak resin 4,5 parts hexamethylene tetramine 0,5 parts. Specification 845,245 is referred to.
Patent GB-663814-A (GB)
Title: Improvements in means for separating a liquid from solid material
IPC: B04B3/04
Filed: 1946-04-04
Abstract: 663,814. Centrifugal-separators. SOC. ANON. FRANCAISE POUR LA SEPARATION L'EMULSION ET LE MELANGE (PROCEDE S.E.M.). April 4, 1946 [April 12, 1945], No. 10456/46. Class 23 Apparatus for separating solid from liquid comprises a horizontal, rotary chamber 24 into which the liquid to be treated is fed and in which solids are projected to and temporarily held on the inner surface, a further chamber 25 having a filter 12 in contact with the liquid in the rotary chamber, means for withdrawing the centrifugally separated and filtered liquid from the. further chamber, and extraction means within the rotary chamber for the continuous removal of solids. The extraction means for the liquid comprises an adjustably mounted siphon pipe 19, and the extraction means for the solids comprises a helical conveyer 10 driven at a speed slightly different from that of the rotary chamber.
Patent GB-983673-A (GB)
Title: Improvements in the production of polyoxymethylene polymers
IPC: C08G2/10
Filed: 1963-03-15
Abstract: Trioxane is compacted to a bulk density above 1 gram per cubic centimeter then irradiated in the solid state with high energy ionizing irradiation, then raising the temperature to above 30 DEG C. to cause polymerization and finally separating the polyoxymethylene from unchanged trioxane.  The trioxane may be compacted by melting it and allowing the melt to solidify or by subjecting it to a compressive force of at least 14 kg./cm.2.  The trioxane may be polymerized while confined in a polymerization zone containing no free space, preferably in an inert atmosphere, while unpolymerized trioxane may be removed by solvent extraction or evaporation.
Patent GB-311064-A (GB)
Title: Improvements relating to drills for drilling shot holes in coal and similar material
IPC: E21B44/08
Filed: 1928-04-10
Abstract: 311,064. Donaldson, J. April 10, 1928. Drills.-Machines for drilling shot-holes in coal &c. are supported on a strut 1 by an adjustable collar 5 to which is pivoted a rack 8 engaging the coal face. The fluid or electrically operated drill has a lug 10 sliding on the rack bar for feed by a lever 12 a spring pawl 15 preventing reverse movement.
Patent GB-105599-A (GB)
IPC: B21D39/08
Abstract: 105,599. O'Donnell, J. P., (Grant & Co., P.). April 15, 1916. Driving machines. - Driving-mechanism for tube expanders and other tools comprises a tubular body portion 1 with extensions 2, 2<a>, in which is journaled a boss 16 having an angular bore and carrying a bevel wheel 5 driven by a pinion 4 on a shaft 6 squared for a handle and rotating in a sleeve 18 screwed into the body. Lubricant is fed at 23 to a space formed by a reduced part of the sleeve provided with holes 24. A guard 27 may be fitted.
Patent GB-244329-A (GB)
Title: Improvements in lathing for walls and other plastered surfaces
IPC: E04F13/04
Filed: 1925-04-23
Abstract: 244,329. Mond, A. L., (Mitchell Holding Corporation). April 23, 1925. Walls; ceilings; lathing. - Plaster is applied to walls and like surfaces against a lathing consisting of a flexible fibrous board 1, which may be corrugated, as in Figs. 1 and 3, or flat, as in Fig. 8, and reinforcing and supporting cross-bars 3, provided on the front of the board, are held in position by members 2, 4 arranged in connected alignment on both sides of the board. The cross-bars 3 have alternate flanges 7, Fig. 5, extending in opposite directions on the inner and outer edges. The wires 4, in the case of corrugated boards, have loops 5 which pass through the crests of the ridges and are hooked or pass over the corresponding inner wires 2, the cross-bars being held in the furrows of the board. When the hoard is flat, the bars 3 are retained by wires 12, of which loops 13, 14, extend through the backing and are bent around the inner wires 2. The backing is fastened in position by staples 8, Fig. 1. The fibrous board may be coated, impregnated, or otherwise treated with asphaltum &c.
Patent GB-105299-A (GB)
Title: Improvements in and connected with Attachments to Ladders to Prevent Slipping thereof.
Inventor: ALLISON GEORGE
IPC: E06C7/46
Filed: 1916-07-29
Abstract: 105,299. Allison, G. July 29, 1916. Ladders. - Metal attachments for the bottom ends of ladders, to prevent slipping, each comprise a ring or band a shaped to fit and grip the end of the ladder, a base b, and a spike c, the parts being made integral by welding. The spike and b a s e are formed in one piece and may be f o r g e d or stamped. The slots d enable the attachments to be forced on to the ladder ends, screws passing through holes e being used to secure them.
Patent GB-242179-A (GB)
Title: Cockless siphon
IPC: F04F10/00
Filed: 1925-04-25
Abstract: 242,179. Schafferus, H. April 25, 1925. Loose ball valves. - A siphon is provided with a casing e, between the suction pipe a and outflow pipe b containing a ball g, which by suitable manipulation may be caused to close either pipe or may be received in a groove f.
Patent GB-513533-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: H04J1/14
Filed: 1938-04-08
Abstract: 513,533. Multiplex systems. STANDARD TELEPHONES & CABLES, Ltd., and TERRY, V. J. April 8, 1938, No. 10857. [Class 40 (iv)] [Also in Group XL] In a carrier system in which speech is transmitted on a single side-band and the carrier is keyed at a low frequency for the transmission of dialling or supervisory signals or for telegraphy, une speech is demodulated by the addition of a locally-produced carrier of the same frequency as the original carrier, whilst for the other signals a locally-produced carrier of a different frequency is used, the difference frequency being then,rectified and used to control a relay. In the multi-channel system shown, Fig. 1, speech and signals modulate the carrier O and the filter SF1 transmits one speech side-band and both signal side-bands. At the receiving end, these are applied through a bridge BN (to prevent interference between the two carrier sources) to demodulators DMf1, DMs1. Speech is demodulated by the addition of carrier O1 of the same frequency as O and passed through an amplifier A with a filter Fx to remove any low frequencies corresponding to the signals. In the demodulator DMs1 a source On of a different frequency is added and this may be the carrier for one of the other channels or for the return path of the same channel. The difference frequency with signal side-bands is selected by a narrow band-pass filter RFs1, rectified at D and applied as grid bias to the amplifier A to control a relay R in the anode circuit. Fig. 2 shows a suitable circuit for filter RFs1, detector D, and amplifier A. The demodulated speech is applied over transformer T1 to the grid of valve V1 and the rectified signals are applied over resistances D2, D1 as grid bias to control relay R. Transformer T1 is inefficient for low frequencies and resistances D2, D1 render the signal path inefficient for high frequencies. The amplifier may comprise a pair of valves connected in push-pull for the speech and in parallel for the signals or vice versa. The Provisional Specification refers to arrangements for ordinary telephone repeater systems in which the signals are transmitted on a carrier just above the speech range, the same valves being used for the speech currents and the rectified signals. In two-wire circuits, different carrier frequencies are used for the two directions and singing in intermediate repeaters is prevented by a band-stop filter in one path and a low-pass filter in the other.
Patent GB-591179-A (GB)
Title: Improvements in or relating to electric motor control gear
IPC: B60L11/18
Filed: 1945-04-30
Abstract: 591,179. Interlocked controllers. WEST & CO., Ltd., A., and DAVID, O. T. April 30, 1945, No. 10862. [Class 38 (iii)] In a control system for a vehicle of the trolley bus type provided with a reversing controller 2 and main controller 3, and interlocking means whereby the main controller cannot be operated unless the reversing controller is in either the "ahead" or "reverse" position, and the latter cannot be operated unless the former is in the "off" position, the respective controllers are located at the rear of the vehicle and the interlocking mechanism is at the forward end adjacent to the drivers controls. The system is also arranged for connecting a lighting or other battery to the driving motor for slow running. A reversing lever 4 secured rigidly to a pivoted shaft 8 is connected by links 20, 21, which may include a hydraulic transmission, to the drum 2, and a quadrant 7 secured to the shaft 8 and rotatable therewith is provided with notches 12- 14 to co-operate with a pin 11 projecting laterally from the upper end of a lever 9 mounted on a fixed pivot 10. The lower end of the lever 9 is pivotally connected to a link 24 in the transmission between a pedal. operated lever 5 and the main controller 3. The notches 12-14 in the quadrant 7 correspond respectively with "ahead," "reverse," and "test" connections of the drum 2, the "reverse" notch 13 being of less depth than the others, and when the lever 4 is rotated to align any one of the notches with the pin 11 depression of the pedal causes the pin to enter that notch and also rotates the control drum 3 to an extent determined by the depth of the notch. Further movement of the lever 4 is prevented until the pedal lever is returned to its "off" position. The arcuate position of the quadrant between the notches 14, 13, when registered with the pin 11 determines the setting of the drum 2 for " reverse " drive by the battery. At the " off " position of the drum 2 the part of the quadrant between notches 13 and 12 registers with the pin 11, and the port immediately below the notch 12 corresponds to the "coasting" position, the battery "forward" position being lower down the quadrant. The battery system includes a push-button or like switch for completing that circuit.
Patent GB-232990-A (GB)
Title: Improvements in and relating to pit props
IPC: E21D15/18
Filed: 1925-04-27
Abstract: 232,990. Kaasmann, P. April 26, 1924, [Convention date]. Mine props.-Wooden props are provided with tubular ends having constrictions which allow of slow settling during yielding. The tubular end 3 is provided with a constriction 6 which allows yielding of the wooden prop 1, a foot or head rest 4 being provided for the tube. The tubular portion may be adjustable and may be bent from sheet metal to have overlapping ends, a clamp 8, 9 being provided at the constricted portion to regulate adjustment; or the tube may be continuous and an adjustable clamping plate 10 is provided to regulate the adjustment; also the tube may be formed in two longitudinal sections with overlapping ends.
Patent GB-600322-A (GB)
Title: Improvement in art of impregnation
IPC: H01G13/04
Filed: 1945-05-01
Abstract: 600,322. Impregnation for electric insulation. AEROVOX CORPORATION. May 1. 1945, No. 10982. Convention date, Sept. 7, 1944. [Class 140] " Paper " wound capacitor sections in a container are impregnated by evacuating the said container, for instance through a vent in the top thereof, and feeding the oil or other liquid through an aperture in the floor of such vented but otherwise sealed container at a controlled rate of feed so as to take at least as long to fill all the voids to the top of the porous material in the container as the capillary filling time. Other cellular and cellulosic material may be used intead of paper. Preferably the cans are immersed in a bath of impregnating oil the head of oil and the aperture in the bottom of the container being correlated to give the appropriate filling time. With capacitors of varying cross sections the filling apertures may be calibrated in accordance with the cross section, the head of oil never being sufficient to exceed the capillary filling time of the smallest unit. After impregnation the vacuum is broken and the venting or filling apertures sealed. The filling aperture may be provided with a gravity seated valve such as a solid rivet, the effective filling aperture being the annulus about the valve stem. Oil may be fed directly to the container. In Fig. 7 part of the capacitor container is shown having a countersunk portion 16<1>, an aperture 171 and a rivet valve 18<1> having lugs 19<2> . The oil inlet pipe 50 extends through the floor F of the vacuum tank being welded to ring 53, a gasket 54 both preventing leakage of oil and also lifting the rivet valve 181.
Patent GB-229905-A (GB)
Title: Improvements in or relating to binding materials
IPC: C09J105/00
Filed: 1924-05-05
Abstract: 229,905. Nagel, T. May 5, 1924. Briquetting processes. - A binding material suitable for briquetting finely-divided ores is made by mixing together 1-10 parts by weight of pure or crude ortho-phosphoric acid and 6-30 parts by weight of an adhesive carbohydrate such as blackstrap molasses, so that, upon heating to a temperature between 400‹ and 1000‹ F. the binding material is made tenacious, waterinsoluble and non-fusible. The phosphoric acid may be replaced by an acid phosphate such as that of calcium and the blackstrap molasses bv beat-sugar residue, starch paste, concentrated sulphite liquor, concentrated molasses residue after producing alcohol, or other saccharine material.
Patent GB-1008580-A (GB)
Title: Light polarizing materials
IPC: G02B5/30
Filed: 1963-03-20
Abstract: <PICT:1008580/C6-C7/1> Light polarizing material of the light transmitting or reflecting type is made by vacuum depositing a substance on a substrate surface while so controlling the rate of evaporation and the volume, dimensions and direction of the vapour stream that it is incident on the surface at an acute angle to the plane of the surface and is evaporated thereon as a plurality of laterally spaced filaments.  These may be secured to the substrate by applying a protective coating.  Specified vaporizable substances are Al, Ag, Pt, Pd, Au, Cr, W, C, Fe, Co, Ni, and alloys thereof, organic dyes in powder form such as isoviolanthrone, copper phthalocyanine and direct blue 87, AgBr, ZnS, AgCl, CdS, CaWO4 and diazo compounds. Specified substrates are methyl methacrylate, poly CF2CFCl and mica. Specified protective coatings are molten glass, clear plastic or a lacquer.  According to one method of making a polarizing material, a transparent sheet 10, Fig. 1, e.g. of methyl methacrylate or poly CF2CFCl, is fed through a vacuum chamber 24 wherein vapour from a strip of metal, e.g. Al or Ag, or a dye powder heated in a heater 16 is directed by an orifice 16a on to the sheet at an acute angle. Protuberances in the sheet cast shadows which remain uncoated, the vaporized material being laid down in the unshaded areas as filaments.  The sheet is given a binding and protective coating of plastic 34 from a dispenser 36 and is dried by an electric heater 38 and air circulator 40.  Light passing through the polarizer so formed is plane polarized.  In addition to or in place of guide elements forming the orifice 16a, the deposition may be directed by electric, magnetic or electromagnetic devices, e.g. when depositing ionized metal, the substrate or an element adjacent thereto is given an opposite charge.  The vapour deposition may be through a mask, e.g. a silk screen.  Specific polarizers referred to are a plane polarizer; a plane polarizer operating in a radial manner; an interference type colour transmitting polarizer; a circular polarizer; polarizers including phosphors for use in television receiver tubes; and polarizers having two images in displaced stereoscopic relation deposited in directions at 90 degrees to one another so that a three dimensional image can be seen through light polarizing viewers. Photosensitive materials may be deposited which can be converted into light polarizing images.
Patent GB-1458258-A (GB)
Title: Conveyor for providing extended cooling periods for articles carried thereon
IPC: B65G25/08
Filed: 1974-03-13
Abstract: 1458258 Reciprocating conveyers for cooling moulds HUNTER AUTOMATED MACHINERY CORP 13 March 1974 [16 March 1973] 11134/74 Heading B8A Moulds M to be cooled are drawn along a stationary base 13 step-by-step by transverse members 17 of a frame 14 movable in a closed path, Fig. 7, by motor means 32, 36. The frame 14 is supported by two pairs of rocking members 21 connected by links 28, the members being pivoted at 22 to the base 13 and having rollers 26 which engage between flanges 27 of the sides of the frame 14. At the beginning of a conveying sequence frame 14 is lowered by extension of motors 36 to engage a mould fed from a side portion 13A of the base. The frame and mould are drawn along the lower path, Fig. 7, by retraction of the motor 32. The frame is then raised, disengaging from the mould, by retraction of the two motors 36, and returned to the start position by extension of the motor 32. In the next cycle the frame engages a fresh mould and previously conveyed moulds.
Patent GB-441454-A (GB)
Title: Improvements in or relating to the flotation of ores
IPC: B03D1/012
Filed: 1934-04-13
Abstract: A reagent for use in the flotation concentration of ores, particularly non-sulphide ores such as phosphate rock, limestone, bauxite, barytes, and ilmenite, comprises a metal salt of an organic compound which comprises an aliphatic group which may be either saturated or unsaturated and has 8-18 carbon atoms and which is linked directly to a sulphato-group -O-SO3H, or to a sulphonic group -SO3H, or indirectly to an aliphatic group carrying a sulphonic group, the linkage being either -CO-O- or -CO-NH-.  The aliphatic group with 8-18 carbon atoms may be for example an octyl, lauryl, myristyl, cetyl, oleyl, ricinoleyl, stearyl, or linoleyl group, and the salt used may be an ammonium salt, a salt of an alkali metal, or of an alkaline earth metal, e.g. calcium or magnesium, or of certain of the heavy metals, e.g. lead or aluminium.  The reagents, which are of a soapy nature, may be used alone or with other flotation agents such as pine oil, cresol, or xanthates.  The flotation may be carried out in an acid or alkaline pulp.