baber/WOPTO huggingface dataset:
Patent GB-543230-A (GB)
Title: Cylinders for two stroke oil engines
IPC: F02F1/10
Filed: 1940-08-27
Abstract: 543,230. Cylinders ; cooling. CAMPBELL, H. Aug. 27, 1940, No. 13493. [Class 7 (ii)] A water-jacketed two-stroke heavy-oil engine is of the " uniflow " type, having pistoncontrolled exhaust ports c opened towards the end of the piston stroke, the only admission of scavenging air being from the cylinder head. The cylinder liner a is formed in one piece, the exhaust ports c communicating with exhaust pipes d each attached to the liner and passing laterally through the water jacket b by means of a sliding joint e without a stuffing box. The water jacket b is in two parts bolted together along a longitudinal dividing line. The liner is located by pins f and a plate g closes the lower end of the jacket. In a modification, the jacket is in one piece, the liner being bolted to a plate fixed to the upper end of the jacket.
Patent GB-1060515-A (GB)
Title: Rotating strip dispensing apparatus
IPC: B65H81/08
Filed: 1965-03-30
Abstract: 1,060,515. Feeding webs. DOWSMITH Inc. March 30, 1965 [April 1, 1964], No. 13497/65. Heading B6B. [Also in Division F2] Tubes are formed by winding a resin-impregnated glass fibre web 5 on to mandrels 1 passed continuously through apparatus, Fig. 5. The apparatus includes a plurality of concentrically mounted reels 12 to 15, each capable of being rotated relative to each other. The web 5 enters the apparatus and is wound on to the outermost roll 19 from whence it is unwound from the inside thereof on to the adjacent inner roll 18 and so on, finally being unwound from the inside of the innermost roll 17 on to a mandrel 1. Each of the three inner reels comprises a plurality of circumferentially spaced rollers 24 or 55, Fig. 3 (not shown), journalled between circular end plates 25, 26 or 56, 57, respectively. The circular end plates are supported for rotation, vertically by rollers 48, 49 and 62, 63, Figs. 3 and 4 (not shown) and radially by rollers 47, 58 and 60, Fig. 5. The outermost reel 15 comprises only a single roller 73 journalled between endplates and is provided with a releasable clamp 74, Fig. 2 (not shown), to hold the outermost trailing edge of the web 5. Each reel has a separate driving source which comprises an electric motor, a change-speed gear-box and coupling, Fig. 1 (not shown). However, a single motor may be used with separate gear trains for each reel. In operation the relative speeds of the reels are controlled so that the web is fed progressively from an outer reel to an inner reel and finally wound on the mandrel 1. When the roll 19 on reel 14 is exhausted, reels 14 and 15 are stopped. The trailing edge of the web 5 is released from the clamp 74 and spliced to the loading edge 11 of a replacement web-roll 10, Fig. 3 (not shown). Reel 14 is then rotated so that the web is wound thereon. When full, reel 14 is stopped, the trailing edge of the web is is held in clamp 74 on reel 15 and reels 14 and 15 are then rotated together at the same speed.
Patent GB-1298725-A (GB)
Title: Piston with heat dam
Inventor: FANGMAN CHARLES NEAL
IPC: F02F3/18
Filed: 1970-03-20
Abstract: 1298725 Cooling pistons CATERPILLAR TRACTOR CO 20 March 1970 13508/70 Heading F2T A piston has an annular oil cooling groove 20 formed in its head 10, which groove opens into the interior of the head and is disposed between the piston crown 11 and the top compression ring groove 12. A boss 14 extends from the underside of the crown 11 and forms therewith a chamber 15 closed by a plug 16 and containing a coolant, such as a mercury-sodium mixture. The opposing surfaces 17 and 18 of the head and boss respectively form a tapering chamber through which, in use, cooling oil, as indicated by the arrows 19, is supplied to the groove 20 which is inclined to the piston working surface 21 at an angle a of between fifteen and forty-five degrees. The boss 14 and skirt 13 are secured to the head 11 by welding.
Patent GB-1440409-A (GB)
IPC: C09J7/02
Filed: 1974-03-27
Abstract: 1440409 Laminates MINNESOTA MINING & MFG CO 27 March 1974 [28 March 1973] 13614/74 Heading B5N [Also in Division B2] A pressure-sensitive adhesive tape comprises an elastomer-based backing sheet capable of being stretched at least 50% of its original length without breaking and having a tensile strength of at least 200 pounds per square inch, and a layer, at least  mil. in thickness, of pressure-sensitive elastomer-based adhesive bonded firmly to one major surface of the backing sheet, the adhesive having an adhesion to the polished surface of a flat stainless steel plate of at least 3 ounces per inch width and the backing sheet and adhesive being selected to conform with a physical incompatibility test details of which are given. The tape which may be used for electrical insulations may be wound upon itself without the need for a liner, in the form of a roll and subsequently unwound without damage thereto. The elastomer-based backing may comprise an ethylene-propylene copolymer, ethylene-propylene-diene copolymer, polyisobutylene, butyl rubber, styrenebutadiene rubber, natural rubber, polychloroprene, polyacrylonitrile, silicone rubber, acrylate rubber, styrene-butadiene block copolymer, polyolefin rubber or poly-(epichlorohydrin/ ethylene oxide) elastomer, and may also contain a thermoplastic resin, e.g. polyethylene or polypropylene, a curing agent, e.g. dicumyl peroxide, a nitrosoamine or polymethylol phenol, a resin tackifier, e.g. a glyceryl ester of hydrogenated rosin, a terpene resin or a petroleum hydrocarbon resin, a plasticizer, e.g. chlorinated polyphenol resin, a naphthenic oil or a paraffin oil, a filler, e.g. soft clay, diatomaceous silica or an inorganic oxide, carbon black, a lubricant, e.g. polyethylene or stearic acid, and a flame retardant, e.g. particulate polyvinylchloride with antimony trioxide. The elastomer-based adhesive may comprise a polyacrylate, silicone rubber, polyurethane, polyvinyl ether or natural rubber, and may also contain tackifying resins, vulcanizing agents, plasticizers, antioxidants and fillers. The adhesive may be applied to the backing by hot melt or solution coating techniques or applied to a release liner and then calendered on to the backing with the application of heat and pressure. Adhesion of the adhesive to the backing may be improved using a primer, e.g. comprising rubber and styrene-butadiene rubber. An electrically conductive tape may be produced by including carbon black in the backing and adhesive compositions.
Patent GB-133640-A (GB)
Title: An Improved Doll.
Inventor: HANSEN KAREN MARIE
IPC: A63H15/06
Filed: 1919-05-29
Abstract: 133,640. Hansen, K. M. May 29, 1919. Dolls.-A doll is provided with a large, slightly curved base 1, so that it can be stood up easily. A central rod 2 connects the head 3 with the base 1. The body 4 is stuffed. as usual, and the edge 5 of the casing is glued or tacked to the base 1.
Patent GB-1463883-A (GB)
Title: Production of a floor tile of a thermosetting polymer
IPC: D06N3/08
Filed: 1974-03-27
Abstract: 1463883 Photopolymerisable coatings on floor tiles G A F CORP 27 March 1974 [3 April 1973] 13634/74 Heading B2E A floor tile is produced by (a) calendering a uniform mix of asbestos, filler(s), polymer containing units derived from vinyl chloride or binder material based on asphalt and/or synthetic resin to form a continuous sheet discharged at a rate of at least 80 ft/min at 110 to 180‹F; (b) printing an image on a planar surface of the sheet while it travels at said rate; (c) coating the travelling printed sheet with a liquid containing at least one organic compound containing at least two photopolymerisable ethylenically unsaturated groups per molecule to a thickness of 0.001" to 0.005"; (d) initiating curing of the coating on the travelling sheet to form an adherent clear layer by exposing it to U.V. radiation of 2500A to 4000A wavelength in a non-oxidising atmosphere at 110 to 220‹F for 0.2 to 15 seconds, (e) cutting the travelling sheet into tiles at not less than 120‹F. Valley printing or embossing may be performed before step (b). Suitable inks for printing the flat surface (and the optional valley printing) comprise TiO 2  pigment, vinyl chloride/vinyl acetate (86:14 by wt) copolymer, stabilizer, plasticiser and mineral spirits or polyethylene glycol mono-oleate viscosity controller. Suitable photopolymerisable compounds include conventional prepolymers containing acrylyl or methacrylyl groups, urethanes, ureas, amides, esters or epoxy groups many examples of which are indicated, and mono-functional and/or multifunctional vinyl monomers many of which are indicated. A typical tile mix for calendering comprises asbestos 18 wt %, vinyl chloride/vinyl acetate (86:14) copolymer 17%, phthalate plasticiser 5.5%, limetsone 55%, TiO 2  3% and stabilisers 1.5%; a typical ink has the formulation green pigment 3%, Ba/Cd stabiliser 2%, phthalate plasticiser 38%, vinyl chloride/vinyl acetate copolymer 57%; and a typical coating is U.V. cured glycerine diacrylate maleate (optionally mixed with n-hexyl methacrylate monomer). TiO 2  pigment may be partly replaced by C black, or yellow or red iron oxide. The tile may be alternatively printed with a multicoloured image and coated with a U.V. curable composition of the urethanoethyl acrylate 2-ethylhexyl acrylate, 2-hydroxyethyl acrylate and benzoin methyl ether. Other tiles may contain binders such as Gilsonite, blown asphalt, polyolefins, coumarone-indene resins, polystyrene, and tall or mineral oil plasticisers, one such tile formulation being 23.5% binder, 23% asbestos, 50% filler (e.g. limestone), 0.5% antioxidant and 3% pigment.
Patent GB-1421768-A (GB)
Title: Electronic integrators
IPC: G06G7/186
Filed: 1972-03-23
Abstract: 1421768 Integrating circuits GEC MEDICAL EQUIPMENT Ltd 23 March 1973 [23 March 1972] 13637/72 Heading G4G An integrator circuit comprising a differential operational amplifier 2 has means for compensating the non-zero amplifier input current IB1 and the amplifier offset voltage VO. To compensate for the current IB1 a capacitor C2 is connected between the non-inverting amplifier input and earth to provide a second amplifier input current IB2. It is shown that by choosing IB2/IB1 =C1/C2, where C1 is the value of the capacitor integrating the current from source S, then the effect of IB1 is cancelled. Prior to integration when switches SW2, SW3, SW4 are closed, capacitor C2 is held at a potential which is equal and opposite in polarity to the output of amplifier 2 thereby automatically cancelling out the offset voltage. A simpler circuit suitable for achieving a similar object with a high impedance current source is illustrated in Fig. 4 (not shown) in which the non-inverting input of a differential amplifier is connected to a source (S), a capacitor (C1) is connected across the current source and a capacitor (C2) is connected between the inverting input of the amplifier and the centre of a potential divider (R2, R3) across the amplifier output.
Patent GB-592774-A (GB)
Title: Improvements relating to high-pressure ram pumps
IPC: F04B53/14
Filed: 1945-05-31
Abstract: 592,774. Actuating reciprocating pumps. PRECISION DEVELOPMENTS CO., Ltd., and OLAH, G. May 31, 1945, No. 13645. [Class 102 (i)] A high - pressure grease pump has eccentrics 1 provided with anti-friction bearings arranged on a shaft 2 to impart reciprocatory motion to the piston 4, and a thrust block 6 is interposed between the actuating eccentric 1 and the piston 4, while guides 7, being extensions of the thrust block 6, guide the thrust ' block axially. Anti-friction elements 12 may be interposed as shown, and the thrust block 6 may have a depending sleeve surrounding the cylinder instead of the extensions 7. A return spring may also be incorporated supported on projections from the cylinder block.
Patent GB-1499934-A (GB)
Title: Alloy treatment
Inventor: BERCOVICI SERGE
IPC: C22C1/02
Filed: 1975-04-03
Abstract: 1499934 Alloy treatment in pressure die casting SOC DE VENTE DE L'ALUMINIUM PECHINEY 3 April 1975 [4 April 1974 13650/75 Heading B3F In a process for treating a metal alloy in the form of a mixture of liquid and solid phases, the normally cast alloy is heated to a temperature between the liquidus and solidus points to liquefy a well defined proportion, greater than 40% by weight, and is maintained for a period of a few minutes to a few hours, preferably 5 minutes to 1 hour, so that the original dendritic phase at least starts to globularize. The solid/liquid material thus formed may be pressure cast into a mould at pressures similar to those used in casting liquid metal, with the advantage of reducing die wear, better quality and greater throughput, since the heat needed to be removed by the die is reduced. The treated material may be cooled and reheated without affecting the thixotropic characteristics. Examples of aluminium alloys of the A-S9U3 [Al-9%, Si-3% Cu) type and A-4USG [0À2% Fe, 4À3% Cu, 0À75% Si, 0À5% Mg and 0À6% Mn) type continuously cast in the normal manner and then reheated to 580 and 630 C. respectively show that the time held at temperature significantly affected the thixotropic casting properties of the materials.
Patent GB-739884-A (GB)
Title: Magnetic amplifier
IPC: G05B11/01
Filed: 1954-05-11
Abstract: 739,884. Magnetic amplifiers. BENDIX AVIATION CORPORATION. May 11, 1954 [May 21, 1953], No. 13740/54. Class 40 (4). In a magnetic amplifier in which two variably saturable transformers have their primary and secondary windings so connected in a balanced circuit that the induced output is normally zero, and direct current supplied to the control windings is varied in opposite senses by an input current to unbalance the system and thereby produce an output from the secondary windings, the amplifier includes means for supplying to the control winding of each transformer direct current obtained from the secondary voltage induced in the other transformer in addition to the direct current obtained from the input signal. Field winding 53 of motor 55 is fed by the difference between the outputs of secondary windings 46, 47 of the two saturable transformers 40, 41. Primary windings 42, 43 feed also windings 90, 91 which supply current to the control windings 61, 60 in the other transformer, and the nature of the load current with regard to amplitude and phase is determined by the phase of the A.C. control current supplied to terminals 63, 64 with respect to the alternating current supplied to the primary windings. The double triode tube 68 which rectifies the control current is replaced by metal or germanium rectifiers in further embodiments described with reference to Figs. 3 and 4 (not shown). In the latter of these two embodiments feed-back windings are also provided. A modified arrangement of the coils 90, 91, 60, 61 is also described with reference to Fig. 2 (not shown).
Patent GB-976444-A (GB)
Title: Improvements in or relating to a spindle for spinning frames
IPC: D01H7/12
Filed: 1963-04-05
Abstract: 976,444. Bearings. A. F. MARTINEZ. April 5, 1963 [April 7, 1962], No. 13747/63. Heading F2A. [Also in Division D1] A spindle for a spinning frame has a housing 3 made from sheet-steel and has a radial bearing 4 and a footstop bearing 5 mounted thereon for guiding and supporting a spindleblade 1. The footstop bearing 5 is inserted in, and supported by, a sleeve 8, the latter being resiliently supported in a radial direction by a flat-steel spring 11 having successive zig-zag folds and forming an incomplete ring of approximately 300 degrees. The spring 11 is immersed in oil and has its outermost section urged against a shoulder 12 on the housing 3 by a spring-disc 13 which is abutted by a closurecap 14.
Patent GB-333178-A (GB)
Title: Improvements in or relating to the carding of cotton and other fibres
IPC: D01G15/20
Filed: 1929-05-03
Abstract: 333,178. Crabtree, S., and Catlow, H. May 3, 1929. Carding-engines.-In the carding of cotton or other fibre the usual large wire-covered highspeed cylinder is dispensed with and the fibre is fed by a series of rollers of the licker-in type, rotating at high speeds, which progressively increase, to a slow running doffer. The fibre is fed to a licker-in a and then transferred by a second similar roller b to the doffer c. The second roller is provided with teeth in the reverse direction to the roller a and rotates at a higher peripheral speed in the reverse direction. The doffer is clothed with the usual wire teeth and rotates slowly in the reverse direction to the roller b. Closely fitting covers d are provided over the rollers. The usual mote knives d<1> and grid e are provided below the licker-in. A strip f is fixed below the point of contact of the rollers a and b. The roller a has a high peripheral speed and the speed of the roller b is increased over this by 10 per cent to 20 per cent.
Patent GB-968985-A (GB)
Title: Electrically heatable ceilings
Inventor: TIBBY LEONARD
IPC: F24D13/02
Filed: 1960-04-21
Abstract: 968,985. Electrically-heated ceilings. VOLEX ELECTRICAL PRODUCTS Ltd. Jan. 19, 1961 [April 21, 1960], No. 13938/60. Heading H5H. An electrically heatable ceiling comprises a plastics sheathed heating cable 13 disposed in runs in contact with the upper surfaces of plasterboards 18 (Fig. 1) or panels 11 (Fig. 2) of the ceiling and located in position by resilient or rigid strip formers 20 (Fig. 1), 23 (Fig. 2) extending transversely of the runs. In Fig. 1, the ends 21 of the formers 20 are held between joists 19 and the plasterboards 18 and the cable 13 is covered with strips of wire netting 26 or aluminium foil acting as a heat diffuser and earthing means which may in turn be covered with pads of insulating material such as mineral wool. In Fig. 2 the formers 23 bear resiliently against the sides 12 of the panel 11. Alternative formers are angle sections (Fig. 4, not shown) provided along the apex of the angle with grooves to locate the cable. The cable may be held in contact with a suspended tile ceiling by formers which grip the edges of the tiles resiliently. A thermal cut-out device may be associated with the heating cable in each individual panel to cut out a panel which overheats.
Patent GB-821551-A (GB)
Title: Improvements in or relating to methods of soldering
Inventor: COLSON IAN DOUGLAS
IPC: H01L23/045
Filed: 1956-05-04
Abstract: 821,551. Soldering; welding by pressure. GENERAL ELECTRIC CO. Ltd. May 3, 1957 [May 4, 1956; March 22, 1957], Nos. 13954/56 and 9417/57. Class 83 (4). [Also in Group XXXVI] In soldering two members together, both of metal or one of metal and the other a semiconductor, a metal member has bonded to it, prior to the heating operation, solder, in the solid state, to be used in the soldering operation, the bond being brought about by pressing together clean mating surfaces on the solder and the member. In making a transistor a plate 1, Fig. 3, of N-type germanium is provided with an indium emitter electrode 2 and an indium collector electrode 3 by cold bonding. The face of the plate on which is bonded the electrode 2 is soldered to one side of an annular dished nickel mount 4 having an indium bead 10 cold-bonded to the other side. The mount is cleaned by heating in dry hydrogen to 1000‹ C., a solder washer 11 of 60% tin, 40% lead, by volume, is scraped on each face and fitted into the mount and is cold bonded thereto by placing the mount on a die-block and applying pressure to the solder by means of a punch struck by a mallet. The plate 1, having previously been cleaned in a reagent comprising acetic, nitric and hydrochloric acid and bromine, is placed in contact with the solder and the assembly is heated to 500‹ C. in dry hydrogen to solder the plate to the mount and to form PN junctions adjacent the indium beads on the plate. Two copper wires 19, 20 are sealed in glass beads in a copper base 14, Fig. 2, and a third wire is soldered to the base. Flattened ends 23, 24 on the wires 19, 20 are tinned in molten eutectic tin 48%, indium 52%, solder (m.p. 117‹ C.), and the top of a plinth 22 on the base is tinned with this solder by melting the solder thereon, this tinning being machined flat when solidified to form a layer 25. After cutting away the tops of the beads 2, 3 the plate and mount assembly 1, 4 are mounted on the base 14, the cut surface of bead 3 being pressed against the layer 25 to effect a bond therewith and the tinned portions 23, 24 of the wires being scraped and held against the indium beads 10 and 2. The assembly is heated to 135‹ C. to solder the bead 2 to part 24, bead 3 to plinth 22 and bead 10 to part 23. Finally an upper copper part 13 is cold-welded to the base 14 in dry nitrogen. Specifications 785,467, [Group XXXVI], and 817, 636 are referred to.
Patent GB-275369-A (GB)
Title: Improvements in means for tipping vehicle bodies
IPC: B60P1/10
Filed: 1926-06-02
Abstract: 275,369. Chandler, J. H., and Lloyd, G. E. June 2, 1926. Tipping-wagons.-In tipping wagons of the kind which are tipped by means of an extensible pair such as a screw and nut the displacement of one or both elements is increased by means of a lever or levers pivoted to the body or chassis at one end and sliding on the chassis or body at the other end. Figs. 3 and 5 illustrate diagrammatically examples in which the nuts 7 in Fig. 3 is pivoted to the chassis 20 and the screw 5 bears upon a lever 18 pivoted to the chassis at 21 and sliding on the body at 23, while in Fig. 5 both the nut 7 and screw 5 are pivoted to levers 18b, 18<c> respectively pivoted to the body and to the chassis. In Fig. 6 the screw 5 bears upon the body 1 and rotates in a nut 7 mounted on pairs of trunnions 16, 17 at right-angles to one another and carried by a pair of levers 18, 19, Figs. 6 and 7. The levers are pivoted to the rear part 20 of the chassis to which the body is fixed and which tips about an axis 26 connecting the rear part to the front part 25 of the chassis. The front ends of the levers 18, 19 slide by means of rollers 23 on cams 24 carried by the front part 25 of the chassis, the trunnions 16, 17 by permitting angular movement of the screw 5 in any direction preventing distortion due to the position of the wheels on an uneven road and at the same time allow the body to be tipped either sideways or to the rear at will. To permit sideways tipping the body is supported by rockers 32 which can pivot in, and rise out of, seats 33, Figs. 7 and 15, mounted on the chassis. Grippers comprising screwoperated levers 36, Fig. 17, engaging parts 34 on the chassis retain the body rockers in their seats at the appropriate side during side tipping.
Patent GB-423997-A (GB)
Title: Improvements in and relating to the manufacture of a fabric from elastic threads
IPC: D03D15/56
Filed: 1933-05-13
Abstract: In making elastic fabrics, the rubber threads, either bare or wound with cotton &c., are rendered temporarily inelastic by coating them with glue, gelatine, solution of cellulose derivative, wax, resin, starch or a varnish such as gum damar or copal, the coating, after drying, making the threads semi-rigid. After weaving the fabrics, the coating is removed partly or entirely by washing, and the elasticity of the rubber threads therein is thus restored.
Patent GB-264723-A (GB)
Title: Improvements in tobacco pipes cigarette holders and the like
IPC: A24F7/02
Filed: 1926-06-03
Abstract: 264,723. Barker, D., and Lowry, W. A. June 3, 1926. Tobacco pipes and cigar and cigarette holders. -The stem and mouthpiece are formed with a number of interengaging projections and recesses at their junction. The Figure shows a mouthpiece having projections 2 and 4 engaging recesses 6 and 7 in the stem, but the arrangement may be reversed. Either pair of engaging surfaces may be threaded.