baber/WOPTO huggingface dataset:
Patent GB-726745-A (GB)
Title: Improvements in fuel feeding apparatus
IPC: F23K3/00
Filed: 1953-06-18
Abstract: 726,745. Conveyers. BABCOCK & WILCOX, Ltd. June 18, 1953 [June 18, 1952], No. 16832/53. Class 78 (1). [Also in Group XII] Fuel feeding apparatus for a cyclone furnace comprises an endless feeder conveyer 34 within a housing 20 and receiving on its upper run fuel from an inlet 18, and a nozzle 41 discharging preheated primary combustion air under pressure on to the fuel to discharge it at a uniform rate from the conveyer into a shoot leading to the furnace. As shown, the conveyer 34 is composed of articulated slats and feeds the fuel under an adjustable gate 39 for determining the depth of material and between side walls 38 defining a channel towards a stripping plate 45 arranged around the end sprockets 36 and bent to a curve such as to give increasing clearance between it and the sprocket-wheel in the direction of feed. The material falls into the bottom of the housing 20 formed as a shoot which is cleared by air supplied through a hinged flap 48 providing with the casing a narrow adjustable opening at its lower end. A damper 53 is disposed in the conduit leading to nozzle 41. Specifications 552,747, [Group XII], and 715,272 are referred to.
Patent GB-1071495-A (GB)
Title: Panelled ceiling
IPC: E04B9/00
Filed: 1963-04-29
Abstract: 1,071,495. Ceiling lighting fittings; ventilation. W. A. TROTT. April 28, 1964 [April 29, 1963], No. 16842/63. Headings F4R and F4V. [Also in Division E1] A suspended ceiling panel has a framed central aperture 11 with sloping side walls 25, one of which is louvred for air-conditioning purposes, the louvres possibly being connected via a duct 27 to an air-conditioning system. A light fitting 9 may be mounted over the aperture, being hinged at one end, and being surmounted by a easing 32, the fitting being held up by a lock and catch arrangement 30, 31, and the electrical connection being made by a plug and socket connection 33, 34. A hinged pane 35 of translucent material may close the aperture.
Patent GB-1507526-A (GB)
Title: Expansion joint means
IPC: E04B1/68
Filed: 1975-04-23
Abstract: 1507526 Expansion joints T SCHOOP 23 April 1975 [25 April 1974 19 June 1974 21 March 1975] 16850/75 Heading E1B An expansion joint cover strip comprises side portions 18 with an integral resiliently sitretchable connecting portion 14 of thinner section therebetween. The strip is preferably formed of synthetic rubber and has reinforcing washers 34 embedded therein around holes 32 for receiving screws 8. Cross, angle and T-shaped members are provided for junctions of expansion joints, and the ends of the strip are feathered for jointing thereto. The side portions of the strip may be replaced at the end by metal inserts which are used for soldering the strip to a metallic roof flashing.
Patent GB-1500052-A (GB)
Title: Process and apparatus for pressing meat from a mixture of meat and bones
IPC: A22B7/00
Filed: 1975-04-23
Abstract: 1500052 Separating meat and bones PROTECON BV 23 April 1975 [24 April 1974 30 Aug 1974] 16857/75 Heading A2U A press for separating meat and bones comprises a chamber with a movable wall, perforations through a wall of the chamber through which meat can be pressed out and a closable opening opposite the movable wall through which the residual meat and bone press cake can be ejected. The apparatus shown comprises a cylinder I closed at one end by a cover 2 incorporating a plunger 3 and at the other end by closure 11 incorporating an opening 22 closable by sliding cover 12. As the plunger is moved meat is pressed out via channels 7 and 8 and pipe 9 and through apertures between plates 15, 16 and 17 and pipe 20.
Patent GB-659013-A (GB)
Title: A process for preparing thermoplastic organo polysiloxanes
IPC: C08G77/06
Filed: 1949-06-24
Abstract: An hydroxyl free thermoplastic organopolysiloxane is made by heating an organopolysiloxane containing at least 0.1 per cent by weight of hydroxyl radicals and having a degree of substitution of between 0.9 and 1.77 organic radicals per silicon atom, which radicals are aryl radicals with or without methyl radicals and in which siloxane there is at least one aryl radical per 20 silicon atoms, in solution in an inert solvent, the solution having a concentration less than 2(45D-30) per cent by weight of the polysiloxane based on the weight of the solution (where D is the degree of substitution of the siloxane) at a temperature between 30 DEG  and 250 DEG  C., with an alkali metal hydroxide in an amount of from one alkali metal atom per 10,000 silicon atoms to one alkali metal atom per 50 silicon atoms, until a hydroxyl-free polysiloxane is obtained.  The heat treatment may be continued until the siloxane solution has reached a constant viscosity. Preferably the aryl radicals are phenyl or tolyl radicals and the alkali metal hydroxide is KOH.  In examples: (1) a toluene solution of a copolymer containing C6H5SiO1.5 and CH3SiO1.5 units is mixed with an aqueous solution of KOH in methanol and refluxed with removal of water, methanol and some toluene until a solution of desired concentration is formed, when refluxing is continued until the viscosity of the solution is constant.  The solution is then cooled, diluted with ether and washed with dilute acid and water until neutral, to give a hard brittle solid upon removal of the solvent.  A similar procedure is adopted in subsequent examples except (6) in which the alkali is neutralized by trimethylchlorosilane and (8) in which heating is effected in sealed tubes, and the siloxanes used contain the following units: (3, 4) (CH3)2 SiO, C6H5SiO1.5 and CH3SiO1.5; (5, 6) monophenyl-, monomethyl-, phenylmethyl- and methyldiphenyl-siloxane units; (7, 8) C6H5CH3 SiO, C6H5SiO1.5 and CH3SiO1.5; (9) tolyl-methyl-, dimethyl- and monomethyl-siloxane units.  Other solvents specified are benzene, xylene, petroleum ether, cyclohexane, isopropanol and dibutyl ether. The products, which may be oils, soft thermoplastic resins or hard high-melting solids according to the concentration at which the alkali treatment is effected, may be further polymerized to infusible solventresisting resins by heating with catalysts, e.g. alkali metal hydroxides, alkali metal salts of organo-silanols and alkali metal and lead salts of carboxylic acids.  Specification 583,875 is referred to.
Patent GB-740573-A (GB)
Title: Improvements in or relating to organopolysiloxane adhesive compositions and adhesive tapes
IPC: C09J7/38
Filed: 1953-06-18
Abstract: An adhesive composition suitable inter alia for making pressure-sensitive tapes (see Group VIII), comprises a mixture of (a) 5 to 70 per cent by weight of a benzene-soluble copolymer resin consisting of SiO2 and R3SiO 1/2 units and from 0 to 0.2 R2SiO units per SiO2 unit, R being alkyl up to three carbon atoms or phenyl and at least 90 per cent of the R radicals being alkyl, and the ratio of R3SiO 1/2 plus R2SiO units to SiO2 units being from 0.6 : 1 to 0.9 : 1, and (b) 95 to 30 per cent of a benzene soluble organosiloxane having a viscosity of at least one million cs. and having the formula Rl2SiO where R1 is methyl or phenyl and at least 90 per cent of the R1 radicals are methyl.  The composition may also contain up to 10 per cent by weight of a titanium orthoester or a hydrocarbon-soluble partial hydrolysate thereof, the organic radicals in the ester being aliphatic or hydroxylated aliphatic having less than 20 carbon atoms. The copolymers (a) may be made by the co-hydrolysis of the appropriate chloro- or alkoxy-silanes in the presence of a water-miscible solvent, but are preferably prepared by the process of Specification 706,719.  The compositions may contain curing catalysts such as alkyl zirconates and borates, metal alkoxides, metal salts of carboxylic acids and alkoxy silanes such as ethyl silicate, and fillers, e.g. ferric oxide, titanium dioxide and zinc oxide, up to 3 per cent of the composition.  The compositions are prepared by mixing the ingredients alone or in a common solvent such as an aromatic or petroleum hydrocarbon solvent. After coating any suitable surface with the composition the composition is cured by air drying or heating at temperatures up to 300 DEG  C.  The adhesives will adhere to practically any solid surface including fluorocarbon polymers and polyethylene.  A typical copolymer (a) was prepared as follows:-450 grams of isopropanol was added to a solution of 432 grams sodium silicate in 864 grams water acidified with 252 grams concentrated hydrochloric acid, followed by 222 grams trimethylchlorosilane and 288 grams hexamethylsiloxane, and the mixture refluxed for half-an-hour.  The resulting resin was separated as a toluene solution.  The resin had a (CH3)3Si:SiO2 ratio of 0.8.  In examples 1, 2, 4 and 5 compositions containing various quantities of resin (a) prepared as above and a high molecular weight dimethylpolysiloxane or phenyl methylpolysiloxane dissolved in a petroleum hydrocarbon solvent were applied to glass tapes. The adhesive strengths were tested either after removing the solvent by air drying or by drying at 250 DEG C. for 5 minutes.  In example 4, 2 per cent (of the total polymer weight) of various titanium esters were added.  In example 5 various curing catalysts were employed with heat treatment at 150 DEG or 250 DEG  C. for five minutes.  In example 6 various other backings for adhesive tapes were employed.  In example 7 a different resin (a) was employed.
Patent GB-1027821-A (GB)
Title: Improvements in or relating to temperature sensitive controllers for use with gas turbines
Inventor: HANSOM BERNARD STEPHEN
IPC: G05D23/24
Filed: 1961-05-10
Abstract: 1,027,821. Automatic temperature control systems. GRAVINER MANUFACTURING CO Ltd and WILKINSON SWORD Ltd. Aug. 3, 1962 [May 10, 1961], No. 16939/61. Heading G3R. [Also in Division F1]  An automatic temperature control system for a gas turbine comprises a first elongated temperature sensitive device 10 exposed to the exhaust gases and a second temperature sensitive device 11 exposed to air entering the turbine both connected to a bridge circuit R4-R9 which is balanced when the temperature difference is greater than a determined amount causing a transistor VT3 to conduct and VT4 to block, thus de-energizing a relay RLA/1 to operate an alarm or control the fuel supply. During starting a centrifugally operated switch 14 shunts a resistor R15 across R4 to maintain the bridge unbalanced. A test circuit controlled by a manual switch 15 and a relay RLB/1 de-energizes the relay RLA/1. A milliammeter scaled in terms of exhaust temperature may be connected across R7.
Patent GB-769853-A (GB)
Title: A machine for shrinking knitting fabrics
Inventor: ROSEN KARL ISAC JOEL
IPC: D06C21/00
Filed: 1955-06-14
Abstract: 769,853. Shrinking fabrics. ANDERSSON, S. G. June 14, 1955, No. 17045/55. Addition to 747,981. Drawings to Specification. Class 42 (1). The machine for shrinking knitted fabrics disclosed in the parent Specification, is modified in that in each annular groove in the rollers and under the spring therein, there is provided a ring of greater internal diameter than the diameter of the bottom of the annular groove, and in that the grooves are of such a depth that the portion of the ring at the top of the roller will engage the bottom of the groove and be free of the spring. The purpose of the modi. fication is to permit the springs to contract whilst still bent over the rollers.
Patent GB-1066114-A (GB)
Title: Method of photonitrosation of cycloalkane
IPC: B01J19/12
Filed: 1965-04-22
Abstract: Cycloalkanone oximes are obtained by the photonitrosation of cycloalkanes, under irradiation of light from a thalium lamp, while maintaining the concentration of nitrosating agent in the reaction system at the equivalent of 0.15-0.8 weight per cent nitrosyl chloride. Specified starting materials are cyclohexane, cyclooctane and cyclododecane.
Patent GB-1509903-A (GB)
Title: Impellers or rotors
IPC: F01D5/14
Filed: 1974-04-19
Abstract: 1509903 Impeller or rotor blades ANDESTER IMPELLERS Ltd 14 April 1975 [19 April 1974 20 Aug 1974] 17198/74 and 36559/74 Headings F1C and F1T [Also in Division B7] An impeller or rotor comprises non-rigid helical blades 12 secured to a spindle 1 by curved leading edge supports 2, 3 and by trailing edge supports 4, 5 normal to the plane containing the roots of supports 2, 3 and the spindle 1, each blade also being stitched to the spindle along its length. The blades may be made of terylene (R.T.M.) proofed with polyurethane or of plastics material such as ABS plastics. A sinusoidal support member 6 connects the ends A, B of the inner supports 2, 3 to the spindle at E. A modification having six blades is described.
Patent GB-482355-A (GB)
Title: Improvements in methods of making ceramic bodies
IPC: B28B1/44
Filed: 1936-06-22
Abstract: 482,355. Moulding sparking - plugs etc.; refractory substances. GENERAL MOTORS CORPORATION. June 22, 1936, No. 17286. Void. Convention date, June 27, 1935. Application for addition to 472,110. [Classes 22 and 87 (ii)] Articles such as sparking-plug insulators are moulded from finelyground non-plastics such as aluminium oxide or zircon, in some cases with clay as a binder, or hydrochloric acid, gum arabic, gum tragacanth, flour paste, or gelatin as a temporary binder. The non-piastics are ground to a grain size not exceeding 43 microns, and are moulded in granular or slip form in a closed mould under pressure up to 60,000 pounds per square inch. The are sintered after moulding at temperatures between cones 12 and 30. In some cases, the material is de-gassed by vacuum treatment, by the addition of gas-absorbing substances, or by operating in a gas which is liquefied at the high pressures employed. In some cases, sparking-plugs are moulded in moulds having yieldable rubber parts as described in Specification 477,287. In the form shown in the Figure, the article is moulded from slip between upper and lower movable die members 12, 14. The die 12 is formed of sleeves for determining the end and shoulder parts of the plug and has an aperture to receive the central pin extension of a screwed part 24 of the die 14 which is also formed with sleeve parts, as shown.
Patent GB-311578-A (GB)
Title: Improvements relating to the preparation of moisture-absorbing material
IPC: C01B33/113
Filed: 1928-06-15
Abstract: 311,578. Ormandy, W. R., Craig, T. J. _., :and Spence & Sons, Ltd., P. June 15, 1928. Desiccants.-Gares are dried by passage over a desiccant made by treating with mineral acid a silicate of alumina in lump form which will give a hard, porous, siliceous residue, impregnating the residue with a drying-agent and driving off the solvent. A fireclay showing a conchoidal fracture is treated with sulphuric acid until almost all the alumina is removed, and the porous residue is washed, calcined, soaked in calcium chloride solution and dried. The desiccant preferably contains 25-33 per cent of calcium chloride and is revivified by heating to 150‹ C.
Patent GB-421471-A (GB)
Title: Indirectly heated electronic tube
IPC: H01J1/22
Filed: 1933-06-19
Abstract: 421,471. Thermionic valves. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and KAPTEYN, P., 52, Steinstrasse, Steinst³cken, Neubabelsberg, both in Berlin. June 19, 1933, No., 17385. Convention date, June 25, 1932. [Class 39 (i)] In an indirectly - heated cathode having a heating filament 3 inside an insulating tube 6, the ends of the filament projecting from the tube are thickened so that they do not emit electrons. The anode and grid are screened by a mica plate 9 and their leads by insulating tubes or by metal tubes 10 connected with one end of the filament. The thickened ends may be overheated for a short period to drive off electron emitting metal. In a modification the end of the cathode is flared to form a screen.
Patent GB-180229-A (GB)
Title: Improvements in and relating to cigarette making machines
IPC: A24C5/26
Filed: 1921-06-25
Abstract: 180,229. Baron, L. B. June 25, 1921. Right to Patent relinquished. Cigarette-making machines. - Rapid drying of the pasted seams of cigarettes made in a continuous - rod machine is effected by means of an electrically-heated iron e, carried by a lever d provided with an adjustable screwed stop j. The heating-element is clamped to the iron e within a casing g and current is supplied through insulated terminals and wires g', h<1>. The iron is formed with a curved tapered rib i to fit the cigarette within the former b.
Patent GB-146205-A (GB)
Title: Improvements in or relating to butt hinges
IPC: E05D3/02
Filed: 1920-06-26
Abstract: 146,205. Heckert, E. Feb. 14, 1916, [Convention date]. Attaching to articles.-A butt hinge is formed by bending, out of sheet metal, sockets c, d, with projecting pieces e, f, the projections being formed from two tongued portions brazed together at l, one portion of each socket projection being provided with flattened abutments o, p, to take lateral stresses. The projecting pieces are let into the wood g, h, and may have notches m to resist withdrawal. Screws i, k may be provided to give additional security.
Patent GB-197226-A (GB)
Title: Improvements in pyrometers
IPC: G01J5/02
Filed: 1922-06-24
Abstract: 197,226. Hase, R. June 24, 1922. Pyrometers.-In a radiation pyrometer embodying optical elements for focussing &c., a thermocouple to receive the radiation, and a galvanometer, the parts are all arranged within a single casing. The lenses D, E, are mounted in a tube, A having an enlargement A, containing the thermo-couple and the galvanometer. The thermo-couple consists of a platinum &c. disc B to the rear face of which is secured an alloy rod C. Leads G, J, are secured to the rim of the disc and to the rear end of the rod. The couple is sealed into a glass bulb N which is exhausted of air. The annular magnet coil F of the galvanometer is coaxial with the tube A and the pointer F, moves in a plane at right-angles to the axis of the coil. The pointer may be arranged to be visible in, the field of the eyepiece E or the moving coil of the galvanometer may carry a mirror &c. which can be observed though the eyepiece. A diaphragm O comprising an annulus of translucent material impervious to heat rays is inserted between the lens D and the couple. The scale of the galvanometer reading may be automatically varied according to the diaphragm used, as by causing the diaphragm to control resistances in the galvanometer circuit. the resistance in circuit depending on the size of the diaphragm aperture.
Patent GB-476972-A (GB)
Title: Improvements in or relating to variable pitch airscrews
IPC: B64C11/42
Filed: 1936-06-23
Abstract: 476,972. Thrust bearings. JABLONSKY, B. June 23, 1936, No. 17472. [Class 12 (i)] [Also in Group XXXIII] An initial pressure is imparted to the assembly of variable-pitch propeller blades by the provision of rollers which are resilient. The blades 1 are supported in sleeves 6 screwed into the boss 3, ball bearings 7 being disposed between a flange on the part 6 and a flange 5 on the blade root. The base of the root is coned and between opposite blades are disposed conical rollers 8 which are formed of spring steel. The sleeves 6 are screwed in so as to give the rollers 8 an initial pressure equal to the maximum centrifugal force called into play when the propeller is rotating. At high speeds these rollers 8 expand and take up any slack. Where three or more blades are used then a central block is used with which these rollers contact. Specification 441,738, [Group XXXIII], is referred to.
Patent GB-1234689-A (GB)
Title: Doctor blade holder
IPC: D21G3/00
Filed: 1969-04-03
Abstract: 1,234,689. Papermaking. LODDING ENG., CORP. 3 April, 1969 [8 April, 1968; 27 Jan., 1969], No. 17666/69. Heading D2A. [Also in Division F2] A doctor blade assembly includes a doctor blade, a support member, and a yieldable displacement member comprising a longitudinally hollow tubular member having a base wall located on the support member, at least one flexible wall of the tubular member bearing against the doctor blade, the tubular member being sealed and containing a fixed volume of a non-compressible fluid, i.e. a liquid or a finely divided solid, to the exclusion of compressible material, the fixed volume being limited so that the member is not filled to its full capacity under pressure sufficient to cause substantial elastic deformation of the wall, and the material of the wall being such that, in use, it is substantially unstretched. As shown, doctor blade 16 is retained between upper jaw 15 and flexible lower jaw 17. Displacement member 26 bears on support plate 24, which is in contact with the blade. Dimples 18 retain the blade in the assembly. Stop 27 prevents removal of the displacement member 26. The member may also be extended so that it may be attached to the spacer means 19, and to perform the functions of bottom jaw 17 (Fig. 5, not shown).
Patent GB-582868-A (GB)
Title: Improvements relating to horticultural frames
IPC: A01G13/04
Filed: 1944-09-18
Abstract: 582,868. Horticultural frames. CATON, H. F. P. Sept. 18, 1944, No. 17804. [Class 20 (i)] A cloche has a main metal frame having vertical sides b and ends and a central upper ridge d, roof frames h hingedly attached at their lower edges to the upper edges of the sides of the main frame, and a catch or catches j for securing the roof frames in open positions, the main and roof frames being adapted to be fitted with glass or other transparent panes. Handles g are provided at the ends of the main frame, and metal strips m secured to the upper horizontal side members limit the opening movement of the roof frames and may also serve to retain the upper edges of the side panes. The catches j may be pivotally attached at their centres to the ridge member d and turned to lie along it when the frame is closed.