baber/WOPTO huggingface dataset:
Patent GB-948811-A (GB)
Title: Improvements in and relating to stands for letter trays and the like
Inventor: GOULDING ERNEST HENRY
IPC: A47B55/02
Filed: 1959-08-18
Abstract: 948,811. Stands; racks. HALL & GOULDING Ltd. Aug. 18, 1960 [Aug. 18, 1959], No. 28182/59. Heading A4H. A stand for holding trays &c. comprises a base 1, uprights 2 at the rear of the base and a pair of spaced wires 6, extending between the uprights, a ledge-forming element 8 projecting from the lower wire to support the tray 11 in cantilever fashion with the rim 12 of the tray engaged beneath a forward and downward projection 7 fixed to the upper wire. As shown, two projections 7 are formed by the ends of a wire bent to form, also, the element 8 and welded to the wires 6. The uprights which also consist of bent wire members 5 are connected by welding to the wires 6 and are welded to the sides 3 of the base or are releasably connected thereto by anglebar sockets 20. A tray may also be supported on the base a bent wire 14 welded to the base 1 forming projections 15 which engage the rim of the tray to retain it.
Patent GB-194346-A (GB)
Title: Electric oven light
IPC: A21B3/10
Filed: 1921-10-24
Abstract: 194,346. Shade, P. H., and Hitchmough, W. Oct. 24, 1921. Lighting-devices for ovens. -Comprises a pivoted electric-lamp bracket adapted to be mounted outside an oven, as shown in Fig 9, so that it can be turned to bring the lamp into position to illuminate the interior of the own, the light being switched on automatically. The pivoted end of the bracket comprises an insulating-member e, Fig. 5, fitted with two electric conductors g which are brought by the movement of the bracket into and out of contact with spring plungers c, to which the electric leads are connected at b, to switch the light on and off.
Patent GB-999641-A (GB)
Title: Process for the preparation of aqueous dispersions of vinyl chloride-acrylic ester copolymers
Inventor: PERRONIN JEAN
IPC: C08F214/06
Filed: 1961-08-03
Abstract: Aqueous dispersions of vinyl chloride-acrylic ester copolymers are obtained by copolymerizing the monomers in aqueous emulsion in the presence of a redox catalyst and a sulphonated condensate of a phenolic compound and an aldehyde which still contains phenolic hydroxyl groups.  Sulphonation may have been effected before, during or after the condensation. Specified acrylic esters are methyl, ethyl and butyl acrylates.  The redox catalyst comprises an oxidizing agent, e.g. hydrogen peroxide, a persulphate or a perborate, a reducing agent, e.g. a ferrous salt, and optionally a sequestering agent, e.g. an alkali metal pyrophosphate. The sulphonated condensate may be prepared according to Specification 597,016, several examples of such condensates being given. Other dispersants and auxiliaries may also be present, ammonium lauryl sulphate and a condensate of 1 mol oleyl alcohol and 20 mols ethylene oxide being employed in various specific examples.  Polymer compositions.-In examples the aqueous dispersions obtained are mixed with urea-formaldehyde precondensate, hydrocarbon fractions, additional oleyl alcohol-ethylene oxide condensate, various pigments or dyes and ammonium nitrate and the products used to print on dye fabrics.
Patent GB-966845-A (GB)
Title: Fixture for holding workpieces
IPC: B24B41/06
Filed: 1963-07-17
Abstract: 966,845. Grinding; work holders. BARNES DRILL CO. July 17, 1963 [July 18, 1962], No. 28313/63. Headings B3B and B3D. A fixture for holding a plurality of workpieces 11, Fig. 4, such as connecting rods which are to have their bores 12 honed, comprises a body 19 having a plurality of laterally opening slots spaced apart longitudinally of the body and overlying each other, each slot being defined in part by a clamping surface 22 facing longitudinally of the body, a plurality of movable members 21, one for each slot, opposed and spaced from the corresponding clamping surface, means supporting the movable members for movement toward and away from the corresponding clamping surface, and mechanism selectively operable to move the members simultaneously toward the surfaces to clamp workpieces received in the slots. The body has two sets of slots each set having clamping surfaces and movable members so that while one set of slots has workpieces therein being honed, the other set is unloaded and loaded with fresh workpieces. The body is mounted on the table 20 of the honing machine, which has a tool on a spindle 15 rotatably carried by a head 16 vertically reciprocatable on guides 17, and consists of a plurality of members 22 provided with clamping surfaces on one side and spaced apart a distance slightly thicker than that of the workpieces by plates 24. The other sides of the members 22 are formed with annular grooves 29, Fig. 7, in which are slidably disposed the movable members in the form of annular pistons 21 which have seals 31 and surfaces 23 for engaging the workpieces when moved by fluid pressure supplied to a manifold 40 from a connection 35 in a trunnion 36 depending into a bore in the body 19 from an arm 50 projecting from the machine. In operation, while workpieces in one set of slots are being honed, other workpieces are placed in the other set of slots and a locator 46 in the form of a cylinder, which co-operates with a stationary piston 51 and is normally disposed below the table 20, is raised by fluid pressure to engage the bores on the workpiece and a bush 49 in the arm 50 to axially align the workpieces. Fluid pressure is then supplied to the connection 35 and manifold 40 to urge the annular pistons into clamping engagement with the workpieces. Thereafter, the locator is withdrawn and fluid pressure is supplied to a motor 65 having a piston rod 66 formed with a rack engaging a pinion 67 on a shaft 63 secured to the body 19 which is thereby rotated to bring the workpieces into alignment with the honing tool of the machine, the fluid pressure to the annular pistons clamping the honed workpieces being disconnected so that the honed workpieces can be removed and replaced with new workpieces. An interlock mechanism 20 prevents rotation of the body when the locator is engaged in the bore of the workpieces. Coolant is supplied through a pipe 73 to an opening 75 connected to a passage 76 and manifold having openings 78 of the set of slots in the honing position.
Patent GB-856884-A (GB)
Title: Improvements in the grafting of monomers to hydrogen-containing high-polymeric materials
IPC: B01J19/12
Filed: 1957-09-09
Abstract: Graft polymers are made by irradiating a hydrogen containing high-molecular weight organic material with ultra violet light having a wavelength of between 170 and 300 millimicrons in the presence of an organic activator, which is capable of absorbing ultra-violet light with a quantum efficiency between 10-2 and unity, for a period of time sufficient to form freeradicals in the polymeric material and simultaneously or subsequently contacting the polymeric material with at least one ethylenically unsaturated organic monomer capable of polymerizing in the presence of free radicals, e.g. acrylonitrile, acrylamide, N-octyl acrylamide, methyl methacrylate, acrylic and methacrylic acids, styrene, vinyl chloride, vinyl acetate, vinyl pyridine, vinyl pyrrolidone, vinyl pyrrolidine and allyl alcohol. Specified polymeric materials are polypeptides (listed), paper, wood, regenerated cellulose, cellulose nitrate and acetate, natural rubber, polyethylene, polypropylene, polyisobutylene, polystyrene, polyacrylonitrile, polyvinyl chloride, polyvinyl acetate, polyvinyl pyrrolidine, polyacrylic and polymethacrylic acids, polyethylene terephthalate, nylons, polyethers, phenol-formaldehyde condensates, melamine condensates and urea-formaldehyde condensates.  Activators specified are diphenylamine, benzyl disulphide, acetophenone, benzophenone, acetone, thiamine chloride, alkaline cystine and ninhydrin.  The process may be applied to polymeric materials in the form of fibres, films, blocks, &c. whereby desirable surface characteristics may be imparted, e.g. dyeability, moisture affinity and resistance and adhesiveness.  Alternatively the polymeric material may be in divided form or in solution or dispersion.ALSO:The tendency of a nylon fabric to accumulate electrostatic charges is reduced by irradiating the fabric, to which benzophenone has been added, with ultra-violet light, and then contacting the fabric with a mixture of vinyl pyridine and vinyl pyrrolidone to provide a graft polymeric coating.ALSO:Tubes, bottles, containers and other shaped objects made from high-polymeric organic materials e.g. polypeptide materials, cellulose and its derivatives, and synthetic resins, are coated by irradiating the object with ultra-violet light in the presence of an activator (see Group IV(a)) and simultaneously or subsequently contacting the irradiated object with an ethylenically unsaturated monomer e.g. acrylamide, acrylonitrile, styrene, methyl methacrylate, vinyl pyrroline, methacrylic acid, vinyl chloride and alkyl alcohol, which graft polymerizes on to the object.  In Examples: (6) a slab of natural rubber is coated with an aqueous solution of acrylamide and then irradiated with ultra-violet light thereby producing a hydrophilic surface on the rubber; and (10) a block of wood is coated with N-octylacrylamide and then irradiated with ultra-violet light thereby rendering the surface of the block hydrophobic.
Patent GB-681857-A (GB)
Title: Improvements in or relating to pipe swivel joints and packing therefor
IPC: F16L27/08
Filed: 1949-11-07
Abstract: 681,857. Stuffing-box substitutes. DEHN, S. G. (Chiksan Co.). Nov. 7, 1949, No. 28479/49. Class 122(v) [Also in Group XXVIII] A sealing ring F for a spigot and-socket swivel joint is locatec in an annular space 10 betweer the spigot D and the socket C the ring having a rubber body 40 sealingly engaging both th( spigot and the socket and a rigid L-shaped checked ring 41 bondec to one corner of the body t( prevent the ring being forced ou. of the annular space 10. In its free state the side walls 45, 46 of the ring are radially inwardly diverging, the wall 45 in contact with the socket C being radially longer than the wall 46 engaging the spigot D and, as the outer periphery 42 of the ring engages the socket, it is held therein, its wall 46 being in rubbing engagement with the surface 27 of the spigot when swivelling occurs.
Patent GB-391115-A (GB)
Title: Improvements in or relating to the compounding of rubber or the like materials
IPC: C08J3/215
Filed: 1931-10-14
Abstract: Vulcanizing-ingredients in solution, paste, or dispersion in water or a mixture of water and a rubber non-solvent such as alcohol are added to a rubber cement, solution, or dough in an organic solvent.  The rubber solution may also contain an agent, such as a heavy metal soap, to assist the dispersion of the added ingredient.  The Provisional Specification refers also to the introduction of compounding ingredients in this manner.
Patent GB-1056742-A (GB)
Title: Electric lampholder
Inventor: HEATH CLARENCE WILLANS
IPC: H01R33/09
Filed: 1963-06-14
Abstract: 1,056,742. Lamp-holders. CARR FASTENER CO. Ltd. April 8, 1964 [June 14, 1963], No. 28508/66. Divided out of 1,056,741. Heading H2E. A lamp-holder for receiving an electric lamp 15 having a flattened oblong base, comprises a resilient or semi-resilient body having an enlargement 5b to engage in a notch 16a in the base of the lamp. The holder is formed of two relatively movable portions which move apart when the lamp is inserted, the outward movement of portion 5a being limited by engagement with an edge 5c of a flange 7 used in conjunction with a camming surface in the skirt 9 for mounting the holder in an aperture of a printed circuit board.
Patent GB-1398314-A (GB)
Title: Process for the manufacture of hexahydroindane-4-carboxylic acid derivatives
IPC: C07C51/36
Filed: 1972-06-19
Abstract: 1398314 Preparation of hexahydroindane-4- carboxylic acid derivatives SCHERING AG 19 June 1972 [18 June 1971] 28516/72 Heading C2C A compound of formula wherein R 1  represents a (C 1-4 )alkyl group and R 2  represents a hydrogen atom or a hydrocarbon group, is prepared by the reduction of a compound of formula in which R 1  and R 2  have the meanings given above, in the presence of palladium or rhodium and in the presence of a tertiary amine. The starting compound is prepared by the reaction of 3-keto-4-pentene acid ester with 2-alkyl-cyclopentane-1,3-dione.
Patent GB-1025789-A (GB)
Title: Conveyor-driven filing or storage apparatus
IPC: G06K17/00
Filed: 1964-07-10
Abstract: 1,025,789. Filing papers. SPERRY RAND CORPORATION. July 10, 1964 [July 22, 1963], No. 28530/64. Heading B6E. In apparatus for filing papers &c. in trays on movable carrier shelves which can be brought to a working position by a motor-driven conveyer, each shelf has a tray-retaining device which is released only when the shelf is opposite the working position. As shown, the apparatus is housed in a cabinet having a work-table 35 which can be adjusted vertically to one of two working positions, and a vertically slidable front cover 36. Carriers 31 having shelves 32, on each of which a number of filing trays 33 is placed, are carried on two endless chains 44 which can be driven by a motor so that the carriers can be raised or lowered, and the carriers are supported and guided so that they remain horizontal even when passing around the sprocket-wheels 48, 51 on which the chains 44 are mounted. A flange 43 secured to the front end of each carrier shelf 32 has several inclined slots 71, and has mounted thereon a U-shaped strip or lip 72 which is retained on the flange by studs 76 which engage the slots 71. A tension spring 77 is attached at one end to the side of the carrier 31, and at the other end to the nearest stud 76, so that the strip 72 is urged upwardly of the flange 43 by virtue of the inclined slots 71 and studs 76 and retains the trays 33 in position on the shelf 32. Means for lowering the strip 72 when a shelf is opposite the work-table 35 in either of the two working positions, so that the trays can be removed, comprises end lugs 83 on the strip 72 which can be engaged by plunger plates 109 which can move the strips to the left (Fig. 6) and thus depress the strips. Fig. 6 shows two plungers 109 acting on the top and the bottom carriers, respectively, which are in the two working positions. The plungers 109 are slotted to receive studs 118 which engage inclined slots 119 in a vertical bar 117 which can be raised and lowered by crank mechanism operated from a motor 130: thus, as the bar 117 reciprocates vertically, the plungers 109 reciprocate horizontally. The motor which drives the chains 40 is reversible, and supplied with direct current, and the motor 130 is unidirectional and supplied with alternating current. The bar 117 has three spaced abutments 136, 137, 138 which operate switches 140, 141, and the left-hand lugs 82 on the two strips 72 of the two operative carriers 31 can also operate switches 156, so that the carriers can be located at their respective positions. If a tray 33 is partly on the table 35 and partly on the shelf 32 of a carrier, it prevents the strip 72 of the shelf from rising (and consequently moving endwise), and this disables the control circuit and prevents the chains 40 being driven. Any selected tray can be brought opposite the table 35.
Patent GB-332131-A (GB)
Title: Improvements in direct-acting internal combustion air compressors
IPC: F04B27/02
Filed: 1929-09-20
Abstract: 332,131. Pescara, R. P. Sept. 20, 1929. Two-stroke-cycle engines.-In a free-piston air compressor, the pump pistons during the first part of the work stroke compress air to a reservoir 14; this air is admitted to the combustion chamber 3 between the two pistons by the pipe 17 and ports 10 to scavenge the cylinder and form the charge. The pistons are caused to move synchronously by the lever 8 and links 6. Air is admitted to the pump cylinders 4, 5 through valves 11 carried by the pistons.
Patent GB-467660-A (GB)
Title: Improvements in or relating to mercurial electrical cut-outs
IPC: H01H87/00
Filed: 1935-10-16
Abstract: 467,660. Mercury switches. JENKINS, F. T. Oct. 16, 1935, No. 28624. [Class 38 (v)] [Also in Group XXXVI] A mercury thread cut-out comprises two mercury columns 1, 2 each contained in a ceramic body and connected at their lower ends with conductors, either of which can be connected at will by a change-over switch 17 to an incoming lead not shown. The upper ends of the columns communicate with a chamber formed in a metal block 53 to which is connected an outgoing lead (not shown). As shown, column 2 is completed, the upper end being in connection with the block 53 and the lower end is connected in circuit bv switch 17. On overload, the column 2 is ruptured and the ejected mercury is deflected by a surface 3b of a plug 50 so as to fall on the other side of a ridge on block 53 to complete column 1. This can then be connected in circuit by turning the switch 17. Fig. 6 shows a form of cut-out adapted for mounting in a screw socket of the Edison type. In this form the mercury columns 1, 2 discharge into trap chambers on opposite sides of a ridge on the common terminal block 15, each trap chamber having a sloping floor causing the discharged mercury to flow to complete the other column. The lower ends of the columns are connected to contact blocks which may be selectively connected by a rotary change-over switch 17 to a central terminal 24 of a screw coupling. The outer coupling member comprises a screwed sleeve 22 rotatable but not axially movable on the body of the switch. The sleeve 22 has a flange 40 which projects beyond the body of the switch and is knurled or has a series of holes in it to enable it to be screwed into a socket while the switch is kept upright. A spring 47 connects the flange 40 with the common terminal block 15. Specification 438,190 is referred to.
Patent GB-226927-A (GB)
Title: Improvements in or relating to joints for metallic tubing
IPC: B62K19/26
Filed: 1923-11-14
Abstract: 226,927. Foster, W. A. Nov. 14, 1923. Joints formed by brazing.-Relates to a method of constructing a joint between metallic tubing, such as the tubular elements 1, 4 of a cycle frame. The two tubes 1, 4 are arranged to extend into the arms 2, 3 respectively of a lug until an inwardly directed extension or extensions 5 formed on the end of the tube 4 abuts against the surface of the other tube 1, whereupon the said extensions 5 and the tubes 1, 4 are rigidly secured to the tube 1 and lug, respectively, by brazing. The tubes are further secured to the lug by rivets 6, 7. The extensions 5 are shaped by inserting the tube 4 and a mandrel, similar to the tube 1, into the arms 2, 3 of the lug respectively, and applying force to the tube 4 in the direction of its axis..
Patent GB-680292-A (GB)
Title: Improvements in mixing machines
IPC: B01F9/10
Filed: 1949-11-08
Abstract: 680,292. Mixing appliances. DONOGHUE. M., and McALPINE, R. E. Oct. 12, 1950 [Nov. 8, 1949], No. 28657/49. Class 86 A mixing apparatus capable of mixing unusually sticky and stiff materials comprises an opentopped drum 2, Fig. 1, mounted coaxially and detachably upon a power driven rotary support 1, and at least two scraper blades 12 depending into the drum from a detachable stationary bracket 6 over the mouth of the drum, the blades 12 having vertical and horizontal edges lying respectively along the wall and bottom of the drum and being set at such an angle, Fig. 3, as to urge the contents of the drum away from its periphery in response to rotation of the drum. The drum is preferably provided with a blade 5 upstanding from its bottom in the neighbourhood of its centre. The blades 12 may be adjusted angularly about their supporting bolts 13 and radially along the slots 16 in the bracket 6. The bracket 6 may be locked to the side posts 7 by means of cranked levers 9 of which tail pieces 11 are engagable in registering holes in the side posts 7 and extensions 8 of the bracket 6. The levers 9 serve as lifting handles for the scraper assembly.
Patent GB-1400626-A (GB)
Title: Composite of a metallic material and vulcanized rubber and process for production thereof
IPC: B29C70/68
Filed: 1972-06-19
Abstract: 1400626 Coating with rubber BRIDGESTONE TIRE CO Ltd 19 June 1972 [21 June 1971 8 Jan 1972] 28664/72 Heading B2E [Also in Divisions B7 C3 and D1] A composite is formed by vulcanizing a rubber article containing a steel reinforcement comprising a central steel core, an inner coating for said core of brass and an outer coating of tin or lead having a thickness of from 0.001 to 0.14 microns overlying the inner coating. The reinforcement is preferably in the form of a steel cord e.g. a brass-plated steel wire which is i) coated with tin, drawn and twisted, ii) drawn, coated with tin and twisted or iii) drawn, twisted and then coated with tin. Examples are given in which steel cords formed from twisted brass- and tin-coated strands and filaments are embedded in a formulation comprising natural rubber, alone or together with polybutadiene or polychloroprene, or butadiene-styrene rubber, and the composite is vulcanized.
Patent GB-774579-A (GB)
Title: Improvements in or relating to television receivers
Inventor: COPE JOHN EDWARD
IPC: H04N5/53
Filed: 1954-02-09
Abstract: 774,579. Automatic gain control. PYE, Ltd. Feb. 1, 1955 [Feb. 9, 1954], No. 28794/56. Divided out of 774,578. Class 40(5) In a television receiver the demodulated video wave, with the synch. pulses positive-going is applied over a condenser C1 to a clamping circuit comprising a pair of diodes V1A, V2A connected in series, each of the diodes being shunted by a resistor. The diodes are rendered conductive during the " back-porch " period by pulses derived from the line timebase over a transformer T. Alternatively the pulses may be derived from the frame timebase during the post-frame synch. suppression period. In either case the waveform is clamped at black level and is applied to the grid of a valve V3 which is so biased by means of a potentiometer P1 as to be conductive only during the positive-going synch. pulses periods. Negative-going pulses of amplitude proportional to the amplitude of the synch. pulses appear across the anode resistor of the valve V3 and are rectified by a diode V4 and smoothed to constitute the A.G.C. voltage. The arrangement is insensitive to noise-impulses, the gating pulsese being made of such amplitude that the diode V1A cwts off for amplitudes appreciably in excess of the peak video waveform. Specification 715,331 is referred to.
Patent GB-1088635-A (GB)
Title: Treatment of silica sand
IPC: C01F7/54
Filed: 1963-07-20
Abstract: Iron sulphide contaminates in silica sand are decreased by leaching with a solution of sodium, potassium or calcium hypochlorite, at an acid pH, e.g from 1-3.  The hypochlorite may be obtained by the reaction of Cl2 on a solution of Ca(OH)2 or CaO, or of Cl2 on NaOH or KOH solutions. The hypochlorite may also be obtained by the elctrolysis of the respective brine solution, collection of the products and reacting as above sodium hypochlorite may be obtained by hydrolysis of a brine solution in a direct electrolytic cell.  It is advantageous to remove coarse sulphides, e.g. by gravity tables, floatation, Humphrey Spirals etc., before leaching. It may be necessary to precondition the sand by vigorous attrition and/or acid leaching. The hypochlorite solution may have up to 1% available chlorine and the temperature may be in the range 45-75 DEG  C. Leaching may be for up to 24 hours.  Sand containing up to 0.04% Fe2O3 may be so treated.