baber/WOPTO huggingface dataset:
Patent GB-940361-A (GB)
Title: Process for the polymerisation of vinyl chloride in suspension
IPC: C08F2/10
Filed: 1960-02-26
Abstract: 940,361. Addition polymerization processes. WACKER-CHEMIE G.m.b.H. Feb. 26, 1960 [Feb. 26, 1959], No. 6898/60. Heading C3P. Vinyl chloride is homo- or co-polymerized in aqueous suspension in the presence of a protective colloid containing hydroxyl groups, a monomer-soluble catalyst, and 0À1 to 3% by weight based on the monomer(s) of an acyloxy compound obtainable by reacting a C 6 + saturated carboxylic acid with an inorganic hydroxide having a dissociation constant below 10-<SP>9</SP>. Comonomers mentioned are vinyl acetate, ethyl acrylate, acrylonitrile, malaic and fumaric acids and their ethyl esters and vinylidene chloride. Specified C 6 + acids are capric, lauric and stearic and specified hydroxides are those of aluminium and silicon. In the example the protective colloid is partially acetylated polyvinyl alcohol, the catalyst is lauroyl peroxide and the acyloxy compound is aluminium stearate. Polyvinyl chloride so prepared gives a colourless product when hot compounded with octyl phthalate and dibasic lead stearate but if the aluminium stearate is omitted the product is yellow to brown. Specification 841,172 which claims an aqueous polymerization process effected in the presence of a suspending agent, at least one metallic salt of a carboxylic acid containing at least 3 carbon atoms, and at least one ester of a carboxylic acid and a polyhydroxy compound is acknowledged and the use of esters of carboxylic acids and polyhydroxy compounds in addition to such a metal salt and a suspending agent is disclaimed.
Patent GB-783057-A (GB)
Title: Improvements in or relating to electric contact converters
IPC: H02M1/26
Filed: 1956-03-05
Abstract: 783,057. Converting. SIEMENS-SCHUCKERTWERKE AKT.-GES. March 5, 1956 [March 4, 1955], No. 6900/56. Class 38 (2). In a contact converter which has switching chokes 3 for creating circuit opening and closing current steps, for back-magnetizing the chokes 3 to a suitable extent of circuit closing, each choke 3 carries an auxiliary winding 9 connected in series with the winding 10 of an auxiliary saturable choke 11, an asymmetrical alternating voltage being applied across the series connection. The asymmetrical voltage may be derived from the series connection of sources of A.C. 13, and of variable D.C. 14; from an A.C. source connected in series with a rectifier having a resistor connected across it, Fig. 9 (not shown), or from an A.C. source connected in series with a rectifier through which D.C. is passed, Fig. 10 (not shown). The D.C. source may be a three-phase rectifier, Fig. 8 (not shown). The direct components of the asymmetrical voltages may be variable to control the degree of back magnetization of switch chokes 3. Fig. 6 shows the voltage across winding 10 having a direct component Ug, the voltages E2 and A resulting from the circuit closing and opening stages of the switch choke 3. With zero direct component the whole alternating voltage would be absorbed by the choke 10, its core being taken round its hysteresis loop between saturation in opposite directions, areas E2 and A being equal. As shown in Fig. 6, the result of the direct component is that core 11 is saturated in one direction but not in the other, the asymmetry freeing volt seconds R2 for back magnetization of choke 3, area E2 being reduced. Hatched are V2 represents ohmic loss.
Patent GB-372875-A (GB)
Title: Improvements relating to electric batteries
IPC: H01M50/147
Filed: 1931-03-06
Abstract: 372,875. Dry cells. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and RIBER, C. R., 24, Dorville Road, Lee, both in London. March 6, 1931, No. 6996. [Class 53.] Dry cells are sealed by means of a viscous material contained in perforations or pockets in a plate provided above the depolarizing mix. The plate may take the form of a washer having a central hole for the central electrode, and other perforations for the sealing material. In the cell illustrated in the drawings, a cylindrical cardboard jacket 1 encloses a cylindrical zinc container 2 having an impregnated paper liner 4. The carbon rod 5 has longitudinal channels 6, and is grooved as shown at 15. The ends of the liner 4 are turned over on to the top of the mix 14, and one or more calico washers 8 placed over it. Above there is the washer 9 having perforations 10 filled with sealing material, and covered by another calico washer. A spacing piece 11 rests on the washer 9, and the whole cell is sealed by a composition 13 such as pitch, carried by a washer 12. A washer 18 of the type disclosed in Specification 372,874 may be used at the bottom of the cell.
Patent GB-346925-A (GB)
Title: Improvements in striking plates for use in connection with locks and latches
IPC: E05B15/02
Filed: 1930-03-04
Abstract: 346,925. Striking plates for latches &c. BURGESS & SONS, Ltd., B. and BURGESS, B., Temple Bar, Willenhall, Staffordshire. March 4, 1930, No. 7043. [Class 44.] A striking plate for locks, latches, &c. is strengthened by a rectangular box-like structure g surrounding and extending backwards from, the apertures E, F which receive the heads of the bolts. A single structure may surround both apertures, as shown, or a separate structure may be provided for each aperture. The invention is also applicable to a striking plate with a single aperture. In use, the bottom of the structure, which may be open or closed, rests against the bottom of the receiving hole cut in the woodwork.
Patent GB-575969-A (GB)
Title: Improvements in the construction of houses and the like
IPC: E04B1/34
Filed: 1944-04-17
Abstract: 575,969. Walls, floors and roofs. INTERNATIONAL BITUMEN EMULSIONS, Ltd., and ELLIS, P. April 17, 1944, No. 7090. [Classes 20 (ii) and 20 (iv)] To cause the pre-cast concrete floor beams i<1> to exert a uniform pressure on the lower external wall a their ends overhang the wall and carry the upper external wall a<1> built flush with the beam ends. The roof beams i<2> overhang the wall a<1> and support at their ends or beneath their bearings a gutter k. All external walls may be 4¢ in. brickwork or interlocking pre-cast concrete blocks, the spine wall on the ground floor, and the party wall to its full height, being of 9in. brickwork or blocks, and may be erected by semi-skilled labour without scaffolding, a curb beam f of interlocking pre-cast concrete units serving to set out the plan. Capillary action between the curb and the site concrete i is prevented by lateral lugs f<1> and by a bituminous membrane g. A similar membrane h seals the ends of the beams i', and bituminous emulsion is used to seal the reveals at window and door jambs, to attach to the walls a cork lining c beneath the normal plaster finish, to set waterproofed felt flashings m, and, mixed with foamed slag, to set a layer of granulated cork i', l, l<1> on the roof and floors.
Patent GB-1530134-A (GB)
Title: Heat exchanger
IPC: F28D7/02
Filed: 1976-02-04
Abstract: 1530134 Tubular heat exchangers COVRAD Ltd 4 Feb 1976 [20 Feb 1975] 7112/75 Heading F4S A heat exchanger comprises a rigid tube 11 (e.g. of metal) wound in the general form of a helix or spiral but with the tube turns having a shape, when viewed in the direction along the axis of the winding, which is polygonal (as shown), oval or elliptical, said rigid tube being disposed within a pipe 13 of flexible (e.g. plastics) material the wall of which contacts the rigid tube at a plurality of locations spaced apart along its length. In the form shown, where the tube assembly is in the form of a helix, the turns of the rigid tube 11 are hexagonal in shape and contact is made between the two tubes at radially outer portions of the wall of the flexible tube by bend portions of the rigid tube, and at radially inner portions of said wall by straight portions of the rigid tube lying between the bends. The tubes may be in the form of a flat spiral, and the wall of the flexible tube may be corrugated. In use, a beverage such as beer flows through the tube 11 and a coolant such as water flows through the tube 13.
Patent GB-177038-A (GB)
Title: Improvements in and relating to link belting
IPC: F16G5/18
Filed: 1921-03-04
Abstract: 177,038. Hawkesworth, J. A. March 4, 1921. Belts.-In link driving- belts of the kind in which hooked metal links alternate with and connect non-metallic friction links, layers of vulcanized fibre a are faced with leather b and separated centrally by fibre layers c shaped to contact with the hooked ends of metal links f passing over the flattened centre d<2> of circular pins d carried in the layers a, b and thus turning therein rigidly with the links f. Alternate links must be turned at right-angles before they can be separated. According to the Provisional Specification, the friction links may be strengthened by providing them with metal rims or facings.
Patent GB-911775-A (GB)
Title: Improvements relating to a cathodic corrosion control system
Inventor: LOWE RICHARD ARNISON
IPC: C23F13/02
Filed: 1958-03-05
Abstract: 911,775. Automatic cathodic corrosion control systems. CATHODIC CORROSION CONTROL Ltd. March 5, 1959 [March 5, 1958], No. 7163/58. Class 38 (4). In an automatic cathodic corrosion control system a lead-coated cable 1 as disclosed in Specification 880,519 is supported parallel to a hull 2 of a ship by brackets 3 having neoprene bushes 3a. One end of the cable passes through a stuffing-box 5 into a liquid-tight housing 8 where it is connected to a mineral-insulated cable 10 feeding a direct-current supply from a rectifier 14. The potential between the hull and a zinc plug reference electrode 16, as disclosed in Specification 911,774, is amplified by an amplifier 17 and fed to a transformer 14 feeding the rectifier 13 so as to modify the flux in the transformer core. Variation in flux causes a variation in the alternating voltage applied to the rectifier 13 tending to maintain the potential between the hull 2 and the cable 1 at a value dependent on the potential of the reference electrode 16. An alternating voltage supply to the transformer 14 is obtained from the ship's supply 15.
Patent GB-329728-A (GB)
Title: Improvements relating to dishes for carving and the like
IPC: A47J47/00
Filed: 1929-03-05
Abstract: 329,728. Adami, G. March 5, 1929. Plates and dishes.-To anchor poultry and game while carving, the plate or dish is provided with fixed or detachable posts b on which a sliding crossbar c furnished with spikes c<2> can be fixed bv means of screws d. In one modification, the bar c is formed as a skewer to impale the bird, the one end being formed with a socket c<1> as in Fig. 1, while the other protruding end is engaged and forced down by a similar loose socket bearing upon its upper side. In some cases the spikes c<2> are separate from the bar, being formed like staples which hook over the latter when in the clamping position. The posts also may be furnished with a series of holes or notches to engage the ends' of the bar. The posts and bar may be formed as a single integral member adapted to be detachably engaged with holes in the plate or dish. More than one bar may be provided and the posts may be attached to a liner plate fitted within or upon the dish proper.
Patent GB-366319-A (GB)
Title: A device for facilitating the insertion of piston rings and pistons
IPC: B25B27/12
Filed: 1931-03-10
Abstract: 366,319. Pistons. FORTUNE, G. S., 361, Revidge Road, Blackburn, and FORTUNE, S. L., Asterville, Chirnside, Berwickshire. March 10, 1931, No. 7314. [Class 122 (i).] Rings are inserted into their grooves, and the pistons into their cylinders, by means of a split, spring sleeve A the exterior portion of which is reduced for a portion of its length a<1> and tapered slightly to a thin edge a<2>. The other portion of the sleeve is provided with a gripping surface, and the bore of the sleeve is chamfered or rounded at its end a<4>. The split portion a is made wide enough to pass over the connecting- rod C. To insert the rings in the piston, the rings b are slid over the sleeve, and the sleeve slid over the piston, Fig. 3. To insert the piston in the cylinder, the sleeve is first slid over the piston containing the rings to close them in, and then the piston slid through the sleeve into the cylinder, Fig. 5.
Patent GB-437332-A (GB)
Title: Improvements in electric transformers
IPC: H01F29/10
Filed: 1935-03-08
Abstract: 437,332. Transformers. GENERAL TRANSFORMER CO., Ltd., Pennack Road, Peckham, HAWKINS, J. B., 241, Peckham Rye, and LYONS, B. S., 44, St. Asaph Road, Brockley, all in London. March 8, 1935, No. 7328. [Class 38 (ii)] A high-reactance transformer for supplying current simultaneously to two discharge tube circuits comprises a primary winding 3 and two secondary windings 4, 5 on the same core limb with independently adjustable magnetic shunts between the respective secondaries and the primary. The shunts comprise fixed parts 6, 7 and adjustable parts 10 mounted in tubular guides 12. The parts 10 are carried by rods 13 slidable through holes in a bowed spring strip 17 which may be caused to flatten by a screw adjustment 19 so as to clamp the rods 13 in adjusted position.
Patent GB-512523-A (GB)
Title: Improvements in or relating to shoemaking or means suitable for use therein
IPC: A43B13/34
Filed: 1938-03-09
Abstract: 512,523. Shank stiffeners. BRITISH UNITED SHOE MACHINERY CO., Ltd., and BRAY, W. N. March 9, 1938, No. 7332. [Class 17 (i)] Shoe bottom units of the kind described in Specifications 418,669, 465,807 and 474,811, comprising an insole and a reinforcing piece with a shank stiffener therebetween, are secured to an upper, outsole and heel, an aperture being formed at the heel end of the shank stiffener through which a fastening member is driven from the inside of the shoe into the heel. In forming the aperture 105, part of the metal is removed but a portion is left which is bent at an angle to form a prong 107. When the unit is assembled the prong indicates the position of the aperture by forming an elevation on the reinforcing piece. To make a hole for the fastener, the unit is slid over a table 117, the projection being guided by a groove 119 and hollows 123 to an end portion 121 of circular section. A spike registering with the bore 121 is then depressed by a handle.
Patent GB-1105360-A (GB)
Title: Radiation suppressor for a turbopropeller engine exhaust
IPC: F02K1/82
Filed: 1967-02-16
Abstract: 1,105,360. Gas turbine propeller engine exhaust ducts. GENERAL MOTORS CORPORATION. Feb. 16, 1967 [Feb.23, 1966], No.7382/67. Heading F1J. The invention relates to an infrared emission suppressor for the exhaust of a gas turbine propeller engine, the suppressor comprising a tubular inlet 36 adapted to be mounted on and continuous with the engine exhaust, a bell-shaped housing 38 on the inlet, the housing having a radially outward portion 45 and a portion 46 extending downstream from the radial portion, there being an insulated plate 40 mounted within the housing and axially spaced downstream from the inlet, the maximum peripheral dimension of the plate being sufficiently greater than the inlet so as to prevent any viewing of the engine exhaust from the outlet end of the housing. The exhaust duct of a gas turbine propeller engine is shown at 34 and the tubular member 36 of the emission suppressor is secured thereto. The bell-shaped housing 38 is secured to the member 36, the housing 38 being formed by overlapping corrugated ring members 47 which provide inlet passages 48 for flow of ambient air. The plate 40 is supported within the housing 38 by means of brackets 58, the plate comprising sheet metal layers 52 alternated with insulation layers 54, the outer periphery of the plate being of frusto-conical form. The peripheral edge 62 of the plate lies on a frustoconical surface which contains the inlet and outlet edges of the housing 38. The object of the invention is to prevent detection by infrared seekers. Ambient air is drawn through the slots 48 by the action of the discharging gases thus serving to cool the wall of the housing 38.
Patent GB-783404-A (GB)
Title: Improvements in or relating to the production of photographic dye images
IPC: G03C7/25
Filed: 1956-03-09
Abstract: 783,404. Photographic dye image production. TECHNICOLOR MOTION PICTURE CORPORATION. March 9, 1956 '[March 28, 1955], No. 7445/56. Drawings to Specification. Class 98(2) A dye image, usually for use in the imbibition transfer process, lying in a planographic matrix and having the sharpness resulting from frontal exposure is made by contact or optical printing, of the outer strata of sliver halide emulsion, developing, bleaching out the developed silver, reexposing and re-developing to form a complemental image in the inner strata, rendering such image impermeable to dye by treatment with a metallic ferricyanide. and absorbing dye into the bleached outer strata. Three examples specify the printing on to a red-dyed film to limit penetration of light, and quote the processing procedure in full detail. Acid dyes are used for the imbibition transfer in the same manner as with ordinary relief matrices, and it is explained that these dyes do not affect the lower, ferricyanide treated strata rather more because of an interfacial resist than non-absorptivity of such strata.
Patent GB-1055013-A (GB)
Title: Improvements in and relating to room air heaters or coolers comprising induction type air transport systems
IPC: F24F1/01
Filed: 1965-02-22
Abstract: 1,055,013. Air conditioning apparatus. P. W. A. VAN-HATTUM. Feb. 22, 1965, No. 7481/65. Heading F4V. In an air conditioning induction unit having a heat exchanger 5 and a primary air pipe 7 a valve arrangement controls air flow through the heat exchanger and a by-pass 12 and coinprises two rigidly interconnected plates 9 and 10 pivotable about an axis 11. In a modification, Fig. 3 (not shown), the heat exchanger is located with its longer transverse dimension horizontal and the pipe 7 has two rows of outlet apertures and two associated valve arrangements located symmetrically about a vertical plane.
Patent GB-476359-A (GB)
Title: Method and device for utilising and measuring variations of illuminations
IPC: G01J1/54
Filed: 1937-03-15
Abstract: 476,359. Mercury switches. CHILOWSKY, C. March 15, 1937, No. 7492. Convention date, March 14, 1936. Addition to 463,994 and 469,636. [Class 38 (v)] [Also in Group XX] In apparatus as described in the parent Specifications for utilizing or measuring variations in illumination by causing the light to be incident on a closed chamber containing a mixture of hydrogen and chlorine produced by electrolysis of HC1, the said chamber has the form of a shallow container lying parallel to a glass membrane to which the variations of pressure in the chamber are transmitted, the chamber and the membrane structure being made as a unit. In Fig. 1 the membrane 3 is enclosed between glass plates 1, 2 and the reaction chamber 8 is formed between the plate 1 and a slightly curved plate 4, the plates 1, 2, 4 being united at their peripheries. Owing to capillary action the liquid in the chamber 8 is located near the periphery and the gases occupy the central portion which communicates with the membrane by an aperture 9. The lower surface of the membrane communicates with a mercury column through either a peripheral tube 10 or a central tube 11 passing through the plate 2. Figs. 8 and 9 show a form in which the entire apparatus consists of two suitably-shaped plates 46, 47 enclosing the membrane 3. The upper parts 42, 43 of the plates form the reaction chamber which communicates with one side of the membrane through a passage 48. The other side of the membrane communicates through a passage 49 with a U-shaped channel 50 formed in the plate 47 and containing mercury and contacts a, b, c.
Patent GB-1373542-A (GB)
Title: Moisture detection
IPC: G01N27/04
Filed: 1972-01-13
Abstract: 1373542 Measuring moisture content EAST MIDLAND INSTRUMENT ERECTION CO Ltd 13 Jan 1972 [22 March 1971] 7495/71 Heading GIN The moisture content of granular material (e.g. sand, soil, ash, peat) is measured by passing an alternating current between two non-corrodible spike electrodes 2 inserted into the material thereby measuring its electrical resistance, and one electrode includes a temperature compensating N.T.C. thermistor 3. Relay 7 may control the supply of irrigation water. The electrodes may be of cadmium plated copper or platinum.
Patent GB-558427-A (GB)
Title: Improvements in a method and apparatus for applying fastener elements of a sliding clasp fastener to stringers
IPC: A44B19/46
Filed: 1942-06-02
Abstract: 558,427. Sliding-clasp fasteners. WINTERHALTER, M. June 2, 1942, No. 7512. Convention date, March 22, 1941. [Class 44] A machine for assembling and fixing the fastener elements F of a sliding-clasp fastener on the beaded edge 29 of the stringer tape S, the elements having jaws 25 which embrace the bead and interlocking projections and recesses 37, 39, comprises a vertical tubular guide 41 down which the elements are fed with jaws 33 downwardly directed into the spaces between opposed teeth 23 on the edge of continuously rotated rings 7 carried by discs mounted on spindles 3 which are obtusely inclined as shown so that the toothed rings come sufficiently close together (as seen in Fig. 8) shortly after passing under guide 41, to compress the jaws 33 into permanent gripping engagement with the tape bead. A motor 17 drives, through gear wheels 18, a pair of spindles 15 having meshing endgears 19 and pinions 13 which engage peripheral teeth 11 on the rings 7, the rings 7 running in contact with abutment rollers 22 near their position of minimum separation. The guide 41 is of rectangular section with a slot 43 in one face guiding the projections 37 of the elements which encounter teeth 47 of a wheel 45 continuously driven through a spring-loaded friction clutch, the teeth engaging the elements F through the slot 43 as in Fig. 5, to force the elements positively into position on the tape, after which they are carried under the inclined surface 69 of a fixed block 67 which forces the elements home into position with their upper ends flush with the outer surfaces of rings 7 prior to compression. of the jaws 33. The tape S is led through a fixed guide 31 past the lower end of guide 41 and the teeth 23 have notches 25 which receive and support the bead 29.
Patent GB-835843-A (GB)
Title: A process for improving low pressure polyolefines
IPC: C08K3/32
Filed: 1958-03-10
Abstract: Low-pressure polyolefins are stabilized by incorporating therein 0.004 to 2% by weight with reference to the polyolefine, of an alkali or ammonium inorganic salt of an oxygen acid of phosphorus and optionally a substituted phenol and/or an amine. The polyolefine may be a polyethylene, polypropylene, or polybutylene made in accordance with the Ziegler process.  The acid of phosphorus may be orthophosphoric acid, pyrophosphoric, phosphorous acid, or metaphosphoric acid.  The optional ingredients may be diphenylamine, dianils, 2,21-methylenebis - (4 - methyl - 6 - tert. - butylphenol), orthocresylcamphane, or methylglyoxal-di-(aminophenol).  The compositions may be injection moulded.
Patent GB-327835-A (GB)
Title: Improvements in or relating to route indicators
IPC: G09B29/06
Filed: 1929-03-08
Abstract: 327,835. Tidman, S. R. March 8, 1929. Reel and non-endless web apparatus.-A route indicator comprises a strip of writing paper which is mounted on rollers C, D within a casing A so as to be wound from one to the other by means of external knobs E, F. The strip is detachably held to the rollers by slots M and longitudinal springs, and a transverse braking spring I bears on each roller. The casing is furnished with an inspection opening, and may be in two parts hinged together and may carry illuminating means. Reference has been directed by the Comptroller fo Specifications 3906/01, [Class 146, Writing- instruments &c.]; 24055/03, [Class 16, Books]; 6610/04, 8974/05 and 2709/08.