baber/WOPTO huggingface dataset:
Patent GB-201115-A (GB)
Title: Improvements relating to homopolar electric current generators or motors
IPC: H02K31/04
Filed: 1922-12-09
Abstract: 201,115. Gill, J. F., and Chaviara, J. N. Dec. 9, 1922. Homopolar or acyclic machines ; mercury and other liquid collecting-devices.- In homopolar dynamo - electric machines in which relatively rotatable concentric members are electricallv connected bv a ring of mercury or other liquid metal in the gap between the members, channels c are provided on one of the members adjacent to the gap which conduct the mercury from one side of the gap to the other. In order to resist the lateral flow of the mercury in the gap the adjacent surfaces of the gap may be formed with grooves. Guard rings d are provided to catch the mercury thrown out by the rotating member. The surfaces of the channel c may be lightly insulated or other wise rendered poorly conducting in order to prevent any appreciable current flowing across it. The invention is particularly applicable to the machine described in Specification 197,406.
Patent GB-232637-A (GB)
Title: Improvements relating to thread traverse mechanism for cop winding machines
IPC: B65H54/14
Filed: 1925-04-20
Abstract: 232,637. Hahn, G. [Firm of]. April 19, 1924, [Convention date]. Winding-machines.-In cop-winding machines, of the kind wherein the thread guide is fed along a screwed spindle by means of a friction wheel that contacts with the cop and the friction wheel is connected to the nut on the screwed spindle by speed-reducing gearing, the friction wheel 13 is mounted on a lever 8 pivoted about the screwed spindle 1 on a plate 6 carrying the thread guide 7, so that it may be removed from contact with the cop, a locking-pawl 9 being provided to hold the lever in the operative position during winding. The. nut 3 is provided with a toothed internal rim which is connected to the wheel 13 by gearing 10, 11, 12. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also the arrangement shown in Fig. 4 (Cancelled), wherein the friction wheel 13<1> is concentric with the screwed spindle 1, which is mounted on a lever 8<1> corresponding to the lever 8 in the arrangement above described, and is connected by gearing 18, 19, 20, 22 with a conical shell 24 which forms the nut and acts as a cover for the gears. This subject-matter does not appear in the Specification as accepted.
Patent GB-632695-A (GB)
Title: Improvements in or relating to hydraulic control systems
IPC: B60T11/16
Filed: 1947-04-18
Abstract: 632,695. Hydraulic master cylinders. GIRLING, Ltd., and DAVIES, I. G. April 18, 1947, No. 10303. [Class 103 (i)] Communication between the pressure chamber a of a hydraulic master cylinder for operating brakes and the reservoir connected at p, is controlled by a ball-valve s supported by a spring, so that normally it provides restricted communication, but if during the retracting movement of the piston c the pressure in chamber a falls below atmospheric, the valve is moved downwards into a wider part of the passage q to permit relatively free flow back to the chamber. The pipe connection n for the brakes is connected to the passage q by an annular groove l and the radial ports shown. When the piston is moved inwards, the flow from the chamber a carries the valve upwardly to close the passage p to the reservoir. The capacity of the lower part of the passage q may be increased by means of slots w.
Patent GB-1504437-A (GB)
Title: Rubberplastics composites
IPC: B32B25/08
Filed: 1974-03-08
Abstract: 1504437 Laminates; moulding composite articles DUNLOP Ltd 5 March 1975 [8 March 1974] 10432/74 Headings B5N and B5A A rubber-plastics composite is produced by contacting a vulcanized or vulcanizable polyacrylate rubber with a thermoplastic polyvinylidene fluoride or vinylidene fluoride/tetrafluoroethylene copolymer, fusing at least the contact surface of the thermoplastic material, cooling the thermoplastic material in contact with the polyacrylate rubber, and, when a vulcanizable rubber is used, vulcanizing the rubber prior to solidification of the thermoplastic material. The polyacrylate rubber may be based on polymerized ethyl or butyl acrylate containing a minor amount, e.g. 5% by weight, of polymer units of one or more monomers selected from butadiene, isoprene, acrylic acid, acrylonitrile, 2-chloroethyl acrylate and 2- chloroethyl vinyl ether. The thermoplastic material may be fused by direct heating or by molecular vibration methods, e.g. radio frequency techniques. The rubber and plastics material may be bonded together in a mould, the thermoplastic material optionally being injection moulded on to the polyacrylate rubber.
Patent GB-1526454-A (GB)
Title: Catalytic converter and heat insulating device therefor
IPC: F01N3/28
Filed: 1976-03-16
Abstract: 1526454 Protecting exhaust gas silencers NISSAN MOTOR CO Ltd 16 March 1976 [25 March 1975] 10450/76 Heading F1B A heat insulating device, for protecting the ground surface beneath a vehicle from the heat of the exhaust system, comprises a casing consisting of an upper part 21 and a lower part 22 the bottom wall 23 of which is formed with louvres. The openings 32 are at an acute angle # to a plane perpendicular to exhaust pipe 13. At the front of the casing the openings face to the rear and vice versa. The casing is shaped to enclose catalytic converter 12. In a modification, a shield 40 of semi-circular cross-section is positioned so that clearance h is substantially less than clearance H. Louvres are formed along the centre of the shield.
Patent GB-944200-A (GB)
Title: Improvements in processes and apparatus for regulating the draft in textile drafting machines
Inventor: NEIL HUGH GROSS
IPC: D01H5/42
Filed: 1961-03-22
Abstract: 944,200. Automatic control of textile drafting. SPECIAL INSTRUMENTS LABORATORY Inc. March. 22, 1961, No. 10511/61. Heading G3R. [Also in Divisions D1 and G1] In a process for automatically regulating the thickness of a sliver or yarn from a textile drafting mechanism, the short and long term variations in mass per unit length of the sliver are independently detected and the draft ratio is adjusted in response to these variations. As shown in Fig. 4 a sliver 84 is drafted by pairs of rollers 80 and 82 and the short term and long term variations in sliver mass per unit length are detected by detectors 86 and 88 respectively. A servo-mechanism 90 which is operated by the long term detector 88, adjusts the standard against which the short term detector 86 compares the mass per unit length of the sliver; this detector operates a further servo-mechanism 92 which adjusts a control mechanism 94 to regulate the draft ratio and so compensate for the measured variations. In Figs. 1 and 3 a suitable detector and control circuit are shown. A source 12 of beta rays (e.g. radio strontium or thallium) is placed close to a sliver 2 emerging from drafting rollers 4 and 6. Ionisation chambers are positioned at 14, 16 so as to measure the absorption of the beta rays passing through the sliver and an adjustable absorber 18 respectively. The absorber 18 gives a standard rate of absorption against which the rate of absorption in the sliver is measured. The ionisation chambers are connected to a circuit 59 (shown in detail in Fig. 3) which control, via a servomotor 52 and variable transmission unit 62, the relative speed of rotation of the drafting roller pairs to regulate the thickness of the sliver. As shown in Fig. 3 the difference in degree of ionisation in chambers 30 and 31 (i.e. those shown at 14 and 16 in Fig. 1) is measured by triodes 38, 40, the outputs from which are fed to a push-pull D.C. amplifier 42 and then to a phase converter 44, for converting D.C. to A.C. signals. The signals from converter 44 are then amplified by an A.C. amplifier 46 and a power amplifier 48. The plate circuit of amplifier 48 includes a coil 50 of the two phase servomotor 52 having a field coil 54. This circuit causes motor 52 to rotate in one direction when the mass of the sliver is below the standard value and in the opposite direction when the mass of the sliver is above the standard value. Alternatively the collecting potential in one chamber could be held positive while the collecting potential in the other chamber is held negative and the collecting electrodes could be connected together and linked to a single electrometer tube. In the arrangement of Fig. 4 the detector 88 may take the form of that in Fig. 1 and the drive from the motor 52 may be used to alter the standard against which the short term detector makes its comparisons.
Patent GB-556730-A (GB)
Title: Sewing machine
IPC: D05B73/12
Filed: 1942-04-15
Abstract: 556,730. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). April 15, 1942, No. 10572/43. Divided out of 556,717. [Class 112] A needle-bar 21 reciprocates in a frame 24 mounted on a compound pivot 27 one axis of which is in line with the top shaft 14. It is vibrated transversely for maknig zig-zag stitches by means of a pitman 39 and an eccentric on a cross-shaft 42. It is vibrated in the line of feed, for feeding in co-operation with a feed foot and a feeddog, by reason of the sliding engagement of the part 37<SP>1</SP> between spaced guides 65 on a frame 46 swingingly mounted the top shaft 14. The frame 46 carriesthe looptaker which is mounted on a cross-shaft and is driven by a shaft 83 also mounted in the frame 46 and connected by a belt 87 with the topshaft. The frame 46 is oscillated by a pitman 58 and lever 59 on the feed shaft 60 actuated from a variable feed-advance eccentric 64. The cross-shaft 42 giving the lateral vibration to the needle-bar is mounted in the frame 46. The needle-bar driving pin 19 is pivotally connected to the needle-bar and rides in a block 71 which is embraced by the pitman 18. The block 71 reciprocates in guides 70 in a part 68 carried by the frame 46. The feeding mechanism is as described in Specification 556,717.
Patent GB-1033572-A (GB)
Title: Improvements in or relating to methods of depositing layers from the vapour phase
IPC: C23C14/04
Filed: 1963-03-18
Abstract: <PICT:1033572/C6-C7/1> An article is coated by vapour deposition in which a temperature gradient is applied to the article which determines the thickness of the coating, the less hot area being more heavily coated. Thin uniform coatings may also be formed on curved surfaces.  A flat glass surface 1 is mounted in vacuo above a source of vapourized material e.g. SiO2, ZnS, CdS, MgF2, TiO2, Na3AlF6, SnO2 or a metal or metalloid, which passes to the surface in free and unimpeded flow, and above the surface is mounted obliquely, a spiral heating element 10. A heavier coating is formed on the cooler right-hand side.  In other forms, not shown, corrugated coatings are formed using strip heating elements in contact with the glass; a lens concentrates the heat rays; or a mask partly blankets the heat rays, which with a curved surface may be arranged to give a uniform coating, or a coating thicker at the edges of the substrate than in the middle. The heating source may be infra-red, high frequency field, or normal radiation.
Patent GB-454858-A (GB)
Title: A process for improving the properties of phthalocyanine dyestuffs
IPC: C09B63/00
Filed: 1935-04-05
Abstract: Pigment compositions are prepared by treating a solution of a phthalocyanine dye with an aqueous dispersion or solution containing a substratum or an agent capable of forming a substratum by action with the dye solvent, the process being carried out if desired in the presence of a dispersing or emulsifying agent while heating. Substrata specified are barium sulphate, kieselguhr, silica gel (stable to acids) and suspended pigment dyes (stable to acids).  When a pigment dye serving as substratum is soluble in the phthalocyanine dye solvent, the two may be co-precipitated from this solvent. Barium chloride is instanced as an agent capable of forming a substratum with the dye-solvent sulphuric acid.  Specified dispersing agents are the water soluble reaction products of ethylene oxide with alcohols, carboxylic acids and amines of high molecular weight, the polymerization products of ethylene oxide itself, the amide derived from oleic acid and methylamino-ethanolsulphonic acid, sulphite cellulose waste liquor, alkylated naphthalene sulphonic acids and their salts.  In examples: (1) the phthalocyanine dye obtained according to example 1 of Specification 453,767, is dissolved in concentrated sulphuric acid and stirred into a solution of barium chloride and oleic amide of methylaminoethane sulphonic acid in water; a suspension of barium sulphate may replace the barium chloride solution; (2) the pigment prepared by heating o-phthalodinitrile in phthalic acid diethyl ester with cuprous chloride is dissolved in concentrated sulphuric acid and poured into an aqueous suspension of kieselguhr containing the water soluble reaction product of ethylene oxide and octadecyl alcohol; (3) the pigment prepared by heating o-phthalodinitrile with cuprous chloride or cuprous bromide is dissolved in chlorsulphonic acid and stirred into a suspension of 10 parts of silica gel containing the water-soluble reaction product of ethylene oxide with octodecyl alcohol; chlorsulphonic acid may be replaced by trichloracetic acid as solvent for the pigment, in which case it is preferable to heat; (4) the pigment obtained by heating a mixture of o-phthalodinitrile, pyridine and cuprous bromide is dissolved in concentrated sulphuric acid and stirred into an aqueous suspension of the azo dye 4-chloro-2-nitraniline --> acetoacetyl-o-chloranilide containing the ethylene-oxide-octodecyl alcohol reaction product; a green composition is obtained.
Patent GB-957814-A (GB)
Title: Improvements in or relating to neutron shielding
Inventor: LAWSON DONALD WILFRED
IPC: G21C11/00
Filed: 1962-03-20
Abstract: 957,814. Fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 12,1963 [March 20, 1062] , No. 10642/62. Heading G6C. The vertical fuel elements in a steam generating water moderated reactor are each provided with neutron shielding at the upper end in the form of a neutron scatter plug. The coolant light water flows into the fuel channel at the lower end and the steam generated there passes upwards through helical paths in the plug. To prevent rotation of the plug by the entry of the steam into the plug, the outlet ends of the helical paths are provided with extensions which change the direction of flow of the coolant and produce a torque opposed to that produced at the entry. The plug is formed of helical stainless steel fins and may be used to lift the fuel element from the channel. Each element comprises UO 2  pellets enclosed in stainless steel sheaths. The reactor upper shield is formed of light water and boron steel plates. Specifications 897, 446 and 897, 457 are referred to.
Patent GB-571284-A (GB)
Title: Improvements in or relating to the production of cellular synthetic resin compositions
IPC: C08L61/10
Filed: 1943-07-03
Abstract: Non-abrasive cellular products are moulded by forming a flowable mix from a phenol-, cresol- or resorcinol-aldehyde resin syrup, a strong acid or a strong base, and a substance which reacts with the acid or base to form a gas, and placing the flowable mix in a mould.  No external heat is applied, though the mould may be preheated or heat-insulated.  The syrups evolve heat of the order of 100 calories per gram in a few minutes when treated with the acid or base, contain 80 per cent solids, and have a viscosity of 1000 centipoises.  The gas-generating substance may be calcium carbonate (which may be used in the form of one of the naturally-occurring minerals containing also calcium sulphate or silicate) when hydrochloric acid is used, or aluminium powder when caustic soda is used.  The inside surfaces of the mould may be lubricated with a mineral oil, and on removal from the mould, the composition may be heated to 120 DEG  C. for two minutes to remove volatile constituents such as hydrochloric acid gas.  In examples (1) and (3), a mix formed from a phenol-formaldehyde resin syrup, plaster of Paris, and concentrated hydrochloric acid is moulded in a wooden mould, and in a rubberlined wooden mould, the interior surfaces of which are lubricated with a solution of triethanolamine alginate.  In example (2), a resorcinol-formaldehyde resin syrup is mixed with aluminium powder, paraformaldehyde, and caustic soda solution. Specifications 356,664, 384,854, [both in Group V], and 454,251 are referred to.
Patent GB-1417068-A (GB)
Title: Flexile core material for laminated structures and method of producing the same
IPC: B29C45/00
Filed: 1973-03-06
Abstract: 1417068 Rigid foam laminates; cutting plastics material CHEMACRYL PLASTICS Ltd 6 March 1973 [18 April 1972] 10891/73 Headings B4B and B5N [Also in Division C3] A laminate comprises a flexible core material sandwiched between a pair of rigid skins, the core material consisting of a sheet of a rigid elastic foam plastics material (i.e. a closed cell plastic foam material having a compressive strength of at least 25 p.s.i. and being compressible at 20 C. to 50% of its original thickness without rupture of the cell structure and recovering its original shape after compression) the sheet being slotted to define an array of contiguous discrete, block-like elements which are articulately interconnected by discrete hinge pieces constituted by unsevered portions of the sheet at which the slots do not extend through the full thickness of the sheet. The foam plastic may be polyvinyl chloride. In Fig. 4, a portion of a mould 15 has placed thereon a liner 16 which is a sheet of impermeable reinforced plastics material coated with an adhesive, the foamed core material 10 (having square block-like elements 11 with unslotted portions 14 constituting the hinge pieces) is placed in contact with 16 and a second skin (not shown) is bonded on to the exposed side of 10 to form a laminated structure. A knife assembly for production of slots in the above foamed sheet is shown in Fig. 5. Slots are formed in a sheet 10 which is placed on platen 17 of a cutting press 18 having blades 20 and cutters 21.
Patent GB-537911-A (GB)
Title: Improvements in and relating to apparatus for circulating and heating water, and to methods and plant involving the use of said apparatus
IPC: F24D1/00
Filed: 1940-06-26
Abstract: 537,911. Steam regenerative accumulators. BRITISH BOILER ACCESSORIES, Ltd., and GOLDSTERN, W. June 26, 1940, No. 10925. [Class 123 (ii)] The water in a stand-by boiler 3 is heated by steam taken from the steam main 10 through a pipe 14 and injected through a jet 33 into a water chamber connected to the bottom of the boiler and communicating through a , tube 38 of reduced cross-section with a chamber 13 connected to the top of the boiler water space. The boiler normally serves as an accumulator with the furnace damped down and the damper closed, and is brought into operation as a fired boiler when required.
Patent GB-203636-A (GB)
Title: Improvements in and relating to vitreous enamelled tiles, bricks and the like
IPC: E04F13/12
Filed: 1923-04-23
Abstract: 203,636. Francis, J. H. E. April 23, 1923. Sheet-metal tiles.-In vitreous enamelled tiles, flanges a<1> which provide keying-means for the cement backing, are each turned through an angle greater than 90‹ without cutting the metal plate a so that there are no corner joints. Additional keying-means for the backing may be provided by forming shallow corrugations or bosses in the outer surface of the plate, and by crimping or corrugating the flanges a<1>.
Patent GB-646093-A (GB)
Title: Improved moulding compositions
IPC: C08K3/38
Filed: 1948-04-21
Abstract: Phenol-furfural moulding compositions are made by incorporating a boric acid into a filled or unfilled resin composition in which the resin component is a two-stage resin formed by mixing together a fusible soluble phenol-furfural condensation product and hexamethylene tetramine, the boric acid being used in amount of 0.1 to 20 per cent based on the weight of such components. Pure orthoboric acid is preferred and 2 to 6 per cent water may be added. Suitable phenols are phenol, m-cresol, resorcinol, 3 : p  5-xylene, and mixtures of these and their isomers.  In an example phenol (1 mol.) and furfural (0.38 mols.) are reacted at temperatures rising to 200-205 DEG  C. using a potassium carbonate catalyst.  Moulding compositions are prepared by adding to 42 parts of the resin 53.5 parts wood flour, 3 parts hexamethylene tetramine, 0.5 parts zinc stearate, 1.0 parts nigrosine, 4 parts water, and 3 parts boric acid. The cup flow, cup cure, and ease of deformation of mouldings from the compositions are given. According to the Provisional Specification paraformaldehyde or polyoxymethylenes may be used instead of hexamethylene tetramine. Specification 622,332 is referred to.
Patent GB-315463-A (GB)
Title: Improvements relating to printing presses
IPC: B41F35/04
Filed: 1928-04-13
Abstract: 315,463. Schultz, J. April 13, 1928. Inking-apparatus. -Means for cleaning the inking-apparatus of a printing-press comprises a normally stationary wiper of rubber in combination with a trough to receive the removed ink. In one form, Fig. 1, the wiper consists of strips of rubber 1 clamped to a carrier 2 rockable on pins 3 carried by a bracket 4 which is mounted on bars 5, 6 and is finely adjustable by screws 7, 8. Pressure is applied to the carrier 2 by a bar 9 adjustably clamped to the bar 5. The trough 11 is supported on the bar 6 and a cross-bar 12. In a modification, the pressure is applied to the carrier 2 bv a bar forming one member of a screw shackle whereby the pressure can be finely adjusted.
Patent GB-179156-A (GB)
Title: Improvements in mechanism for fluid motors and pumps
IPC: F01B3/00
Filed: 1922-04-19
Abstract: 179,156. Michell, A. G. M. April 29, 1921, [Convention date]. Rotary cylindrical v a l v e s ; toothed gears.-In a fluid motor employing the means for conversion of reciprocating and rotary motion described in Specification 118,098, the turning moment on the rotary wobbler plate 1 due to the pressures A, C of opposite pairs of pistons such as 5a, 5<c> is balanced by the opposite moment due to the fluid pressures A<1>, C' on the surfaces of the rotary valves 20, 21 which are mounted on the shaft 2 of the plate 1. Thrust bearings 30, 31, with spherical castings are provided between the plate 1 and the valves. In the form shown in Fig. 5, suitable for an internal-combustion engine, the valves are driven from the shaft 2 through toothed gearing 46, 47, 48, 51.
Patent GB-260169-A (GB)
Title: Improvements in or relating to the gears of automobiles
IPC: B60K25/00
Filed: 1926-04-27
Abstract: 260,169. Smith, C. H., and Smith, L., (trading as Smith, C. H., & L. 0.), and Sinclair, J. April 27, 1926. Driving auxiliary parfs or external machines.-In an auxiliary casing 9 attached to the main gear-box 1 motion is transmitted from the main driving-shaft 6 to a shaft 18 driving an auxiliary machine through one or more gear-wheels 15 intermediate the driving and driven gearwheels 14, 17. The shaft 18 is actuated from the gear-wheel 17 through a handoperated clutch 21 and may carry a pulley driving a fan, pump, dynamo or other machine. The casing 9 comprises a plate 3, a flanged or hollowed part 10. and a cover or covers 11, 12, all bolted together. The central part 10 may be formed in one with either of the other parts 3, 11. The plate 3 is bolted to the engine end of the gear-box 1 after the usual cover plate of the bearing 2 has been removed, and both plates 3, 11 are formed with lugs which rest on the sub-frame supporting the gear-box. Lubricant from the gear-box passes into the auxiliary casing.