baber/WOPTO huggingface dataset:
Patent GB-843300-A (GB)
Title: Improvements in or relating to moulding apparatus, the manufacture of such apparatusand moulding processes
IPC: B29C33/10
Filed: 1958-03-20
Abstract: A metal mould particularly for moulding natural and synthetic rubbers and resins has a moulding surface of porous metal at least part of which is impregnated with a non-adhesive non-metallic porous material with a non-adhesive non-metallic porous material. The mould may be of aluminium, iron, or stainless steel having a porous metal moulding surface provided by sintering or electro-chemical treatment.  The porous metal surface is impregnated with a solution or dispersion of a natural or synthetic polymer and/or resin such as polytetrafluoroethylene, polytrifluoromonochloroethylene, or a silicone or silicones, or a mixture thereof, and heated to dry the impregnant and to sinter it to form a porous mass.  The solution or dispersion may contain a blowing agent such as ammonium nitrate or chloride, urea, or a polyacrylate.  The porosity of the sintered mass may also be improved if the mould is used before the application of the solution or dispersion for the moulding of a carbonisable natural or synthetic rubber or resin, the deposits of which in the pores of the metal are carbonised during the subsequent-heat treatment. Specification 664,730 is referred to.
Patent GB-297853-A (GB)
Title: Improvements in and relating to the manufacture of detonators for blasting and industrial purposes and for shells, mines and the like
IPC: C06C7/02
Filed: 1927-04-01
Abstract: 297,853. Nobel's Explosives Co., Ltd., and Morris, G. April 1, 1927. Blasting detonators; projectile fuzes.-Detonators for blasting &c. purposes, and for shells, mines, and the like, are provided with a main charge of explosive of high density by loading the charge into the detonator casing in a molten state, and allowing it to set while in the casing. Alternatively, the charge is introduced in powdered form, and is then melted and allowed to solidify. The detonator may comprise a main charge and an initiating charge, separately loaded. One method of carrying out the invention consists in loading into a tube a dry mixture of 70 parts tetryl and 30 parts trinitrotoluene, melting by heating to about 115‹ C. for five minutes, and allowing to set; a priming charge of lead azide and lead styphnate is then pressed on the main charge. In a modified process, the mixture is poured into the detonator tube in a liquid state. In a further example, instead of using a mixture for the main charge, erythritol tetra-nitrate is used, melted at about 61‹ C. In addition to a priming charge, a lightly pressed charge of a secondary explosive such as tetryl may be used. Specifications 15355/14, 139,811, and 164,362 are referred to.
Patent GB-1472801-A (GB)
Title: Polymerisation process
IPC: C08F10/00
Filed: 1974-02-28
Abstract: 1472801 Polymerizing ethylene IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Feb 1975 [28 Feb 1974] 9067/74 Heading C3P Ethylene is polymerized, optionally with other olefinically unsaturated monomers by contacting with a catalyst composition which is the product of reacting with finely divided alumina R m MX p  where M is zirconium or hafnium, R is hydrocarbyl or substituted hydrocarbyl, X is a singly charged anionic ligand or monodentate neutral ligand, m is 2, 3 or 4 and p is 0, 1 or 2, the process being conducted under oxygen- and moisture-free conditions in the presence of a hydrocarbon diluent the impurity level of which is maintained throughout the reaction at or less than 1 p.p.m. and the process being continued until the ash content of the product polymer is less than 0À05 weight per cent. The ethylene may be copolymerized with butene-1 or hexene-1. Preferred catalysts are reaction products of alumina with zirconium or hafnium tetrabenzyl, tetra-(trimethylsilylmethyl) or tetra-(#-allyl). Hydrogen may be present as chain transfer agent. The products are obtained in the form of hard attritionresistant particles suitable for direct blowmoulding.
Patent GB-872771-A (GB)
Title: Apparatus for developing sensitized material
Inventor: GOODMAN ROBERT CHARLES
IPC: G03D7/00
Filed: 1960-03-15
Abstract: 872,771. Developing apparatus. GENERAL ANILINE & FILM CORPORATION. March 15, 1960 [March 25, 1959], No. 9126/60. Class 98(2) An apparatus for developing sensitized material comprises a chamber having opposed end walls 2, 3 with slots 4, 5 therein, a belt conveyer means for the sensitized material 27 comprising two sets of belts each set being composed of a plurality of individual openwork endless narrow bands positioned side by side, e.g. coiled springs 21, means for moving the belts longitudinally in the chamber, vaporizing means 22, 23 for vaporizing the developing fluid and means 8, 9, 12, 13 positioned outside the chamber adjacent the slots for moving the material towards and away from said slots and means 10, 11, 14, 15 co-operating with said last-mentioned means 8, 9, 12, 13 for sealing the space between the slots and said means. In the apparatus shown the springs 21 are passed over circumferential grooves in pulleys 16-19.
Patent GB-506562-A (GB)
Title: Improvements in gas-tight seals whereby electric conductors pass into a vitreous envelope
IPC: H01J5/32
Filed: 1938-03-25
Abstract: 506,562. Sealing lead - in wires. GENERAL ELECTRIC CO., Ltd., BREADNER, R. L., and FRANCIS, V. J. March 25, 1938, No. 9174. [Class 36] A method of sealing a conductor through a wall, at least 3 mm. thick, of a vitreous envelope comprises the following steps in the following order: (1) making a hole through the wall by mechanical cutting or grinding; (2) passing into the hole the conductor, which has been coated along part of its length with vitreous material having a softening temperature substantially the same as that of the vitreous material of which the wall is made; and (3) making a gas-tight joint between the wall and the vitreous coating on the conductor by applying heat so as to soften at least tho external surface of the wall. As shown in Fig. 1, a metal electrode-supporting rod 2, connected at its outer end to a conductor 4, preferably a strip, sealed into a quartz tube 10, projects through a hole drilled in a quartz wall 1 of the envelope of a high-pressure metalvapour discharge lamp. The tube 10 is sealed to the wall 1 by quartz 5 which is fused in a flame to the external surfaces of the wall and tube. In a modified construction the tube 10 projects through the wall 1. Specifications 456,662; and 487,722, [Group XXIII], are referred to.
Patent GB-609007-A (GB)
Title: An improved resilient shock absorber
IPC: F16F9/516
Filed: 1946-03-25
Abstract: 609,007. Hydraulic shock-absorbers; liquid springs. DOWTY EQUIPMENT, Ltd., and ORD, L. R. March 25, 1946, No. 9183. [Class 108 (iii)] A hydraulically damped resilient device comprises a damping chamber 6, a plunger 1 with a damping head 7 which provides damping on both compression and extension strokes, and by which liquid is displaced on the compression stroke through a flow restriction outlet 26, to provide hydraulic damping with resilient compression of liquid entrapped in the chamber 6 at a high rate of plunger travel, a recuperation chamber 17 communicating with the damping chamber through a non- return valve (not shown) which is automatically closed on the compression stroke and opened on the extension stroke. In the construction shown in Fig. 2 a cylinder 14 encloses the damping chamber 6 which is in communication with the recuperator chamber 17 through the ducts 26 at the upper end and the non- return valve at the lower end (not shown) of the shock absorber. The ducts 26 are formed by radial slots in shims 25 positioned between the end of the cylinder wall 14 and a head 5 of the damping chamber 6. In a modified construction, Fig. 1 (not shown), a single leakage port formed in the wall of the cylinder 14 is employed. The plunger 1 passing through low and high-pressure glands 35, 29 carries a damping head 15 having two sets of ports 8, 9 controlled by a ring 13 and a spring-loaded valve 10 respectively. An annular baffle (not shown) in the recuperator chamber prevents emulsification of the damping liquid. Liquid which may escape through the high-pressure gland 29 is returned through passages 32, 34, to the recuperator chamber 17. Operation.-On compression at a normal rate, the non-return valve at the bottom of the damping chamber is closed and liquid displaced by entry of the plunger 1, flows with damping action through the ducts 25. Damping also occurs through the ports 8 in the damping head 15. At a high rate of compression resilient compression of the liquid momentarily occurs in the chambers 6 due to the large restriction caused by the ducts 25. On extension, the damping chamber 6 is replenished from the recuperator chamber 17 by opening of the non-return valve ; the ports 8 in the damping head are closed by the ring 13 but damping takes place through the ports 9.
Patent GB-818863-A (GB)
Title: Improvements relating to window glazing
Inventor: THOW JAMES
IPC: E04D3/08
Filed: 1956-03-24
Abstract: 818,863. Glazing; draught excluders. THOW Ltd., J. June 24, 1957 [March 24, 1956], No. 9261/56. Class 20(3) A weather bar 15 of sheet metal, e.g. aluminium, or plastics material, particularly for roof glazing, consists of a base 16 which rests on a bearer or purlin 12, a portion extending upwardly at 17 and then inwardly at 18 to fill the gap between the bearer or purlin 12 and the glass pane 10, and an upper inwardly extending portion 19 substantially parallel with the base 16, the part 19 having a longitudinally extending recess 20 in which is fitted a weather strip 21 preferably of rubber or plastic, to bear on the adjacent face of the pane 10. The weather bar 15 runs between adjacent glazing bars 11 and the portion 17 is slotted at both ends 22 adjacent the base 16 to accommodate the sides of shoes 13 which retain the panes 10 against sliding and clamp the bar 15 to the bearer or purlin 12 by screws 14.
Patent GB-102024-A (GB)
Title: Improved Collapsible Wheel.
Inventor: KENNEDY GUY LEROY
IPC: B60B1/02
Filed: 1916-07-03
Abstract: 102,024. Kennedy, G. L. July 3, 1916. Compression - spoke wheels; spokes, securing and adjusting.- Crossed spokes 12 have their outer ends engaged in sockets 14 on the rim 1, and their inner ends clamped in sockets formed by registering grooves in a pair of hub rings 7 and flanges 9. The spokes are adjusted by means of nuts 6, the bottoms of the sockets being preferably perpendicular to the axes of the spokes.
Patent GB-565967-A (GB)
Title: Improvements in mop fittings
IPC: A47L13/46
Filed: 1943-06-11
Abstract: 565,967. Mops. BRIGGS, EMMOTT, & CO., Ltd., BANHAM, W., and NEAL, G. B. June 11, 1943, No. 9406. [Class 19] Means for attaching a mop-head to a socket comprises one or more lengths of wire bent to form a loop of any desired shape with three or more legs projecting at right angles from the plane of the loop. The legs are held together adjacent the loop by soldering, brazing or welding, by twisting the lower ends, or by a cross-piece apertures in which are passed over the legs. The material A to form the mophead is laid across the loop a, formed by bending two pieces of wire and assembling them together, Fig. 1, and legs a<2> are folded down to clamp it in position, Fig. 2. A crosspiece of wire similar to that mentioned above may be placed over the mop material before the legs a<2> are bent. The remaining legs a<1 >are passed through holes b<1> in a socket fitting, Fig. 2, and bent down to attach the mop-head to the socket B.
Patent GB-909304-A (GB)
Title: Improvements in or relating to insecticidal compositions
IPC: A01N25/20
Filed: 1959-03-18
Abstract: An insecticidal composition comprises an active insecticidal agent, e.g. Lindane, and colophonium in a proportion at least 50% by weight based on the active insecticidal agent.  There may also be included a thermally dissociatable substance such as ammonium p  nitrate which yields heat upon thermal dissociation and also dicyandiamide preferably in the proportions by weight of dicyandiamide to ammonium nitrate of 2 : 3.  The composition may be wrapped between a plurality of layers of a combustible material preferably impregnated so as to burn substantially without flame, e.g. paper or cotton fabrics to produce an insecticidal smoke on burning.  Specification 684,069 is referred to.
Patent GB-1201081-A (GB)
Title: Improvements in or relating to trays for packaging jars, cans and similar articles
Inventor: STEVENS ROY ALBERT
IPC: B65D5/36
Filed: 1967-02-28
Abstract: 1,201,081. Trays. LANDOR CARTONS Ltd. 31 Oct., 1967 [28 Feb., 1967], No. 9483/67. Heading B8P. A tray of the kind made from a blank comprising a base panel 1 with rounded corners, one or two side walls 2 and end walls 3, the or each side wall having extensions 2a joined, e.g. by gluing to the end walls, includes a crease line 4 in the base panel parallel with but spaced from each end wall, and crease lines 5 in the or each side wall so arranged that the end walls can be folded inwardly about the crease lines in the base panel. Two such trays (Fig. 4) may be interconnected by a strut (7) secured to the trays, e.g. by adhesive. The upper tray may have one or two side walls. Alternatively the upper tray may be formed integrally with and as an extension of a wall of the base tray.
Patent GB-218391-A (GB)
Title: Improvements in the agglomeration of fuel
IPC: C10L5/22
Filed: 1923-04-06
Abstract: 218,391. Martel, L. April 6, 1923. Composition fuel.-In agglomerating fuel by means of pitch, medium, or heavy oils derived from the distillation of coal tar or petroleum, alone or dissolved in tar, are atomized upon the ground coal &c. and ground pitch at or before the entry of the components into a mixer, after which the sprayed mass passes to a briquetting press or the like. In an example the oils are heated by a steam coil to 40-50‹ C. and atomized by compressed air or steam upon the ground coal-pitch mixture.
Patent GB-1292882-A (GB)
Title: Improvements in or relating to the production of laminates
Inventor: OXLEY DAVID FAIRCLOUGH
IPC: B29C45/16
Filed: 1970-02-27
Abstract: 1292882 Injection moulding IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [27 Feb 1970] 9545/70 Heading B5A In a process of making laminates by sequentially injecting two or more synthetic resins into a mould, a compound to improve the adhesion between the resins is also injected into the mould. This compound may be atactic polypropylene modified with maleic anhydride or a polyurethane and may be injected between the injections of the resins so as to form an adhesive layer therebetween. Preferably three injection barrels are used, feeding through a common sprue. Alternatively the compound may comprise two components each of which is incorporated into one of two adjacent layers of resin so that the components react along the joint between the resins to form a bond. Thus the adhesion-improving compound may be a polyurethane which comprises an isocyanate component and a polyester component. The article produced may have a cellular core and an unfoamed surface skin. Reference has been directed by the Comptroller to Specification 1,156,217.
Patent GB-560028-A (GB)
Title: Improvements in coin-controlled vending machines
IPC: G07F5/16
Filed: 1942-07-09
Abstract: 560,028. Vending machines. LEE, B., HARPER, P. S., and HARPER AUTOMATIC MACHINE MANUFACTURING CO., Ltd. July 9, 1942, No. 9568. [Class 27] In a coin-freed vending machine electromagnetic means are provided whereby any one of a plurality of different kinds of articles to be sold at different selected prices, within limits, can be obtained. A plurality of coin shoots, each for a different denomination of coin, are presented for receiving coins 'summing up to the value of a selected article, and pushbuttons, one for each article, effect on operation the delivery of the article. Enough, or more than enough, coins for the purchase of several articles may at one time be put into the machine, and any surplus coins, after purchases have been completed, may be retrieved by the usual mechanism. The distributing switches 5 employed for effecting delivery are shown in Fig. 1, two being depicted each with its corresponding pushbutton 111a. The switch comprises a spring- supported platform 102 fitted with contacts 15b, 16b, 11b, 11d, 16d, 15d, and surmounted by a spring-supported disc 103 carried on a stem 105 which passes through the platform 102 and the switch base 2 and registers the two springs 107, 108. Pivoted to the disc 103 are arms 12b, 12d, one for each coin shoot, carrying downward projecting contacts 100, 101 adapted in certain angular locations of the arms to engage the contacts on the platform 102. The arms 12b, 12d are set by the vendor in positions which determine the total number and type 'of coins which must be inserted before pressure on the button 111a will, on bringing the contacts together, effect closure of circuits resulting in operation of a delayed-return relay switch which allows the coins to fall and causes any selected article to be delivered. Fig. 4 shows a shoot holding a number of superposed coins, the lowest of which rests on an electromagnetically-operated platform and one or more of which have coin stack supports 10 controlled by coin-operated switches 9, preferably of the mercury type: These allow the required, number of coins to fall to cash reservoir when the button is pressed. Means may be provided to prevent more than one button 111a being pushed in simultaneously. Specifications 409,552 and 550,228 are referred to.
Patent GB-202926-A (GB)
Title: Improvements relating to double window panes
IPC: E06B3/663
Filed: 1923-04-09
Abstract: 202,926. Unmack, E. April 9, 1923. Windows, fanlights, &c.-Double window panes are formed by placing two glass sheets at a slight distance apart and interposing along their edges an elastic and homogenous filler, the surface of which is previously treated by an adhesive agent dry at normal temperatures but fused by subsequent heating of the glass and thus caused to adhere, the adhesive agent being a vegetable juice product such as a resin, balsam or polyterpene in an alcoholic solution, or an alcoholic solution of a formaldehyde condensation product such as that known under the registered Trade Mark " Bakelite."
Patent GB-394100-A (GB)
Title: Improvements in or relating to junction boxes for electric cables
IPC: H02B1/00
Filed: 1932-04-05
Abstract: 394,100. Junction boxes. SYKES & DYSON, Ltd., SYKES, P., and COOPER, W., Queen's Mill Road, Huddersfield. April 5, 1932, No. 9700. [Class 38 (i).] Multicore cables are connected up, even when their respective conductors are out of alignment, by means of slidable units, each mounted on a cross conducting-bar and consisting of a conducting member and an insulated member adapted to be coupled by a removable link. As shown applied to a box for four cables, the units slide on pairs of connected bars such as f, fl, &c., disposed in compartments e<1> &c. The member f<3> of a unit is in electrical contact with the bar f and through this and a bridge j also with the parallel bar f<1>. The companion member f<4> is insulated from the bar f, is coupled with the member f<3> by a link m, and is provided with a depending stalk f<7> for connection with a cable conductor. The stalks of the units mounted on one bar extend in one direction while those pertaining to the other bar in the compartment concerned extend in the opposite direction.
Patent GB-417199-A (GB)
Title: Improvements in or relating to slicing machines for meat and the like
IPC: B26D7/01
Filed: 1933-04-01
Abstract: 417,199. Slicing-machines. GOULDING, W. G., and AUTOMATIC SCALE CO., Ltd., Broadheath, Altrincham, Cheshire. April 1, 1933, No. 9815. [Class 28 (ii).] A last-slice holder d mounted for angular feed movements to compensate for an initial taper in the substance being sliced, is hinged at f to the carrying frame c and is urged, by coil springs g surrounding the pivot pin away from the carrying frame, i.e. into the inclined position. A rod is pivoted at h to the back of the holder d and passes into a sleeve c<4> extending rearwardly from the frame c. The rod j has a pawl tip j<1> which engages teeth k inside the sleeve, a spring j<3> normally holding the pawl in engagement with the teeth. A handle j<2> is provided for disengagement. The pawl may be provided on the sleeve and the teeth on the rod j. The pawl engagement holds the holder d against the action of the coil springs g. In one manner of operation, the angular movements of the holder are effected by the cam l abutting against a stop of the reciprocating carriage, and in another manner of operation, a pivoted member q on the holder engages a stop or stops on a lazy-tongs member n, one member n<1> of the lazy-tongs being pivoted at m to the reciprocating carriage, whilst a member n at the other end is pivoted at n<3> to a member o which advances with the feed table b. The member q is swung down to lie between the stops p<1>, p, which stops move towards the cutting plane at a rate which is slower than the bodily feed movement of the holder. This arrangement is used for slicing long pieces of meat &c. In order to prevent fouling of the knife by incomplete projection of the meatholding prongs, a pivoted lever r is provided, one end of which engages a stop as the lastslice holder approaches the cutting plane, the other end carrying a wedge-shaped cam r<4> which engages a correspondingly shaped cam s on a crank-arm e on the prong-projecting lever. According to the Provisional Specification, a moving stop engaging the member q is carried by an arrangement of links.
Patent GB-1127624-A (GB)
Title: Improvements relating to organic aluminium compounds
Inventor: TURNER JOHN HARRY WALLICE
IPC: C07F5/06
Filed: 1965-03-09
Abstract: 1,127,624. Organic aluminium compounds. HARDMAN & HOLDEN Ltd. 16 Feb., 1966 [9 March, 1965], No. 9883/65. Heading C2C. Compounds of the general formulµ (wherein (C 8 H 8 O 2 N) is a p-acetamidophenate group and X is a hydrolysis controlling group derived from stearic acid, stearyl alcohol, oleic acid, oleyl alcohol, cetostearyl alcohol, castor oil or benzoic acid) or of the general formula (wherein p is 0 or an integer, some of the groups X are p-acetamidophenate groups, some are hydrolysis controlling groups as previously defined, and the rest, if any, are hydroxy groups) are prepared by reacting an aluminium alkoxide with paracetamol and a substance containing a hydrolysis controlling group in the presence of water.
Patent GB-541761-A (GB)
Title: Electrical calculating apparatus
IPC: G06G7/16
Filed: 1940-06-06
Abstract: 541,761. Electrical calculating apparatus. CONTRAVES AKT.-GES. June 6, 1940, No. 9937. Convention date, June 10, 1939. Addition to 520,228. [Class 40 (i)] [Also in Group XIX] The electrical calculating apparatus of the parent Specification is modified by arranging that the various networks, which are adjusted in accordance with the values of the respective variables, are located at separate positions at which the values are originally determined, the networks being interconnected by transmission lines the impedance of which matches the impedance of the networks.