baber/WOPTO huggingface dataset:
Patent GB-1029341-A (GB)
Title: Improvements in or relating to bearings
Inventor: HARRISON RONALD GEORGE
IPC: F16C19/46
Filed: 1964-02-19
Abstract: In a roller bearing, the rollers are made of low friction resilient material and a pair of annular end-caps are provided. The rollers 5 may be of nylon or P.T.F.E. and may incorporate graphite or molybdenum disulphide.  The inner race is a bush 4 of nylon having molybdenum disulphide incorporated therein, for example, and the outer race is an axial flange 3 of a wheel 1 which is also made of synthetic plastics material and has an external axial flange 2.  The bush 4 has radially outwardly directed portions 6, 7 which may be integral therewith or each may be mounted on a shoulder 8 of the bush.  The portions 6, 7 serve as annular end-caps and, having inwardly-turned rims 9 which are slidably received in annular recesses in the side faces of the flange 3, prevent relative axial movement between the bush 4 and the wheel 1.  The wheels are said to be suitable for roller skates and wheel-barrows &c.
Patent GB-491857-A (GB)
Title: Urea-aldehyde resins
IPC: C08G12/04
Filed: 1937-03-09
Abstract: Synthetic resinous material is obtained by causing to interact in presence of an aliphatic monohydric alcohol containing three to five carbon atoms or of an alkyl monoether of an aliphatic dihydric alcohol, e.g. the monoethyl ether of ethylene or diethylene glycol, and in presence of an acid or acid-yielding substance as catalyst, a product obtainable by alkaline condensation of formaldehyde with urea and a product obtainable by alkaline condensation of formaldehyde with a carbamic ester, and removing water of reaction.  In place of separately-prepared products, a crude mixture obtained by heating a mixture of urea and a carbamate with formaldehyde under alkaline conditions in an alcohol solvent may be employed.  Specified carbamates are propyl, amyl, butyl, benzyl, methylcyclohexyl, and those of the monoethyl and monobutyl ethers of ethylene glycol and the monoethyl ethers of diethylene glycol.  Generally the molecular ratios of the carbamate-formaldehyde product to the urea-formaldehyde product is 1 to 3 or more.  Water of reaction is conveniently removed by azeotropic distillation; if the alcohol is miscible with water, an aromatic hydrocarbon, e.g. benzene, toluene or xylene is added. Suitable catalysts are carboxylic acids, e.g. phthalic, citric, maleic, succinic and lactic, or anhydrides, e.g. phthalic.  The products have good solubility in aromatic hydrocarbons and are used in paints, varnishes, lacquers and coating-compositions. Plasticizers or softeners, e.g. dibutyl phthalate, tricresyl phosphate or castor oil, other film-forming materials, e.g. drying oils, alkyd resins, nitrocellulose or benzyl cellulose, and colouring matters may be added.  Examples are given of the production of resinous masses from the following carbamates in n-butyl alcohol: (1)-(3) n-butyl, (4) amyl, benzyl or of the monoethyl ether of diethylene glycol, (5) methyl cyclohexyl, (6) ethylene glycol monoethyl ether, and (7) dodecyl.  In example (2), the product is neutralized with sodium carbonate before distillation.  The product of example (7) is compatible with drying oils, and a further example (8) illustrates the working-up with linseed oil. Specifications 309,108, [Class 2 (iii)], and 383,025 are referred to.
Patent GB-630712-A (GB)
Title: Process of preparing intermediates useful in the preparation of penicill amine
IPC: C07D263/42
Filed: 1947-03-13
Abstract: Addition compounds or salts are formed by treating an N-a -haloacyl valine with a nitrogen heterocyclic compound having a pyridine nucleus.  Treatment of the product with acetic anhydride gives a 2-alkyl-4-isopropylidene-5-oxazolone which may be treated with water, e.g. by adding the reaction mixture to water, to form an a -acylamino-b  : b -dimethylacrylic acid.  If the reaction mixture is added to anhy drous alcohol such as benzyl alcohol, methyl alcohol or ethyl alcohol, the corresponding ester is formed instead of the free acid.  Reaction of the oxazolone or dimethylacrylic acid products with hydrogen sulphide followed by hydrolysis gives dl-penicillamine. The N-a -haloacyl valine is prepared by treating valine with an a -haloacyl halide in aqueous alkali.  In examples (1) N-chloroacetyl valine prepared by treating dl-valine in aqueous sodium hydroxide with chloroacetyl chloride is reacted with pyridine to form a crystalline compound. this product is heated with acetic anhydride and the reaction mixture is poured into water giving a -acetylamino-b : b -dimethylacrylic acid; (2) the reaction mixture obtained as in (1) is distilled in vacuo to give 2-methyl-4-isopropylide-5-oxazolone.
Patent GB-762299-A (GB)
Title: Improved machine for mining and loading coal and other minerals
Inventor: TALBOT GEORGE KEITH
IPC: E21C27/12
Filed: 1954-03-11
Abstract: 762,299. Mineral-mining machines. MAVOR & COULSON, Ltd. June 29, 1955 [March 11, 1954], No. 7052/54. Class 68 (1). In a mineral-mining machine that cuts at the buttock of a face of a seam, there is transversely disposed of and on a frame 10 hauled along the face by a winch 30, a chain cutter assembly, a vertically-adjustable rotary cutter assembly, a conveyor behind and beneath the rotary cutter assembly but 15 above the frame, and a conveyor behind the frame. The cutter assemblies extend from and beyond or beyond the side of frame adjacent the seam to the other side of the frame. The chain cutter assembly preferably includes a pair of endless, pick-carrying chains 14, 15 and is so designed as to cut the mineral away between the level of the floor and the level of, or higher than, a platform 13 on the frame. The rotary cutter assembly comprises a pair of pick-armed scrolls 20 and a bar cutter 25 rotatably mounted in and at the end of a vertically adjustable arm 27 pivotally mounted on the frame. The cutter assemblies together with the conveyors, preferably screw conveyors 30, 33 eject all the mineral sidewards of the frame on to a face conveyor. The conveyor 30 deals with all the mineral moving rearwards over the platform 13 and the conveyor 33 with all the mineral scraped off the floor from beneath the frame by a plate 33A.
Patent GB-919154-A (GB)
Title: Improvements in and relating to gramophone pickups
Inventor: FOOT GEORGE OWEN
IPC: H04R1/16
Filed: 1958-03-05
Abstract: 919,154. Pick-ups. COSMOCORD Ltd. June 5, 1959 [March 1, 1958; April 1, 1958], Nos. 7059/58 and 10405/58. Class 40 (4). In a piezo-electric pick-up for use with lateral cut or 45/45 records each of two styli is coupled to both of two piezo-electric elements by means of an open integral ring-like member 17 (Fig. 5) having two integral arms each of which connects one element to the stylus carrier 20 (Fig. 2), the lateral and longitudinal compliances of the arms differing from one another. Two bimorphs; of which one, 14, is shown in Fig. 2, are located within the casing 10, 11 by projections 13 on the inner walls thereof, their rear ends being located in a restraining pad 15 and their front ends being received in slots in the two upper sides of the square- or diamondshaped member 17. The pad 15, the member 17 and an intermediate pad 16 are all made of compliant material such as plasticized polyvinyl chloride. The forward part of the stylus carrier 20 consists of a thin walled tube 21, the front end of which is flattened and carries two styli 22, 23, while the rear part of the carrier 20 is a spring wire 24 having its forward end inserted into the tube 21 which is crimped at 25 (Fig. 1) and its rear end secured in a turnover mounting member 26. The shank portion 26a of the member 26 is accommodated in a groove in the underpart of the casing 10, 11, being held therein by metal spring member 30 the arms of which are passed beneath two lugs 31, 32 of the casing. The stylus carrier 20 and member 26 may be removed as a unit by withdrawing the spring member 30. The stylus carrier 20 engages in a groove in the lowermost part of the coupling member 17. The cartridge is mounted in a U- shaped cradle consisting of a relatively stiff portion 40 and a resilient portion 41 (Fig. 3) by springing it into position, a projection 43 on the front of the casing engaging in a hole in portion 41, and two projections 45 on the rear thereof engaging in a slot in portion 40. The lower arms of the member 17 have a compliance in the compression direction which is substantially less than that in the direction at right angles so that the two signals from a 45/45 recording are transferred to the respective bimorphs with substantially no crosstalk.
Patent GB-1046571-A (GB)
Title: Two-wire circuit protector
Inventor: CHERNETT PETER RUSSELL
IPC: H01H71/00
Filed: 1965-02-19
Abstract: 1,046,571. Automatic circuit breakers; fusible cutouts. STANDARD TELEPHONES & CABLES Ltd. Feb. 19, 1965, No. 7252/65. Headings H2B and H2G. The melting of a fuse 5 in one wire of a twowire circuit permits a lever 3 to pivot upwards to allow a spring blade contact 1 to separate from a fixed contact 2 in the other wire so that upon overload both supply wires are interrupted. Various materials are suggested for the contacts, the fuse wire and the insulating lever 3.
Patent GB-481047-A (GB)
Title: Improvements in screw caps for electric lamps and electric discharge vessels
IPC: H01K1/46
Filed: 1937-03-12
Abstract: 481,047. Two-part couplings. GENERAL ELECTRIC CO., Ltd., PIRANI, M., and SMITHELLS, C. J. March 12, 1937, No. 7313. [Class 38 (i)] The usual brass &c. screw cap 2 of a lamp is protected from contact with the fingers by covering the exposed part of the cap with a sleeve 8 of aluminium electrolytically oxidized on its outer or inner surface or both. The sleeve may be held in place by engagement with the upper part of the screw threads of the cap. The lead-in wire 6 may be brought out and soldered at the exposed edge 13 of the cap. The invention may be applied to the caps of discharge vessels.
Patent GB-779195-A (GB)
Title: Improvements relating to hermetically sealed barrier-layer rectifiers
Inventor: MORRISON SAMUEL JAMES
IPC: H01L23/051
Filed: 1954-03-12
Abstract: 779,195. Hermetically sealed rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd. March 11, 1955 [March 12, 1954], No. 7327/54. Addition to 749,030. Class 37. In an hermetically-sealed electric rectifier of the type claimed in the parent Specification in which rectification takes place over an extended area of the rectification element in which germanium or silicon is used as the semiconductor or rectifying element, for example the rectifier may be of the P-N junction type, two metal plates 1, 2 are spaced apart by a ring of insulating material 4 (i.e. glass or vitreous enamel) hermetically sealed directly to one of the plates 1 and to the other plate 2 through the intermediary of a ring-shaped metal disc 7 which is sealed to the other plate 2, the rectifying element 3 being located between the ring of insulating material 4 in electrical contact with both plates 1 and 2, the ring of insulating material 4 being hermetically sealed between concentric flanges 5, 6 formed on plate 1 and metal disc 7 respectively.
Patent GB-565583-A (GB)
Title: Improvements in dispensing cartons
IPC: B65D83/08
Filed: 1943-05-11
Abstract: 565,583. Dispensing folded sheet material. BURGESS, A. F. (International Cellucotton Products Co.). May 11, 1943, No. 7471. [Class 18] A dispensing carton for interfolded sheet material, such as " cleansing tissue," has its withdrawal slot 20 arranged substantially perpendicular to the lines of folding of the interfolded sheet material so that the sheet withdrawn is crumpled transversely and the leading edge of the succeeding sheet which is caused automatically to project through the slot is also crumpled so that it will not fall back by gravity into the carton. The slot may have pointed ends and may have bendable lips along its borders. It may be formed by tearing a strip from the carton along scored lines. When succeeding sheets are bonded together, the grip on the second sheet suffices for rupturing the bond. The slit may extend into two sides of the container.
Patent GB-288173-A (GB)
Title: Driving and clutching device for rotary air compressors of aeroplane engines
IPC: F16D43/12
Filed: 1928-03-10
Abstract: 288,173. Farman, H., and Farman, M., (trading as Farman, H. et M.). April 2, 1927, [Convention date]. Clutches, friction.-In centrifugally-operated disc clutches for connecting the crank-shaft of an internal-combustion engine in an aeroplane with epicyclic speed-multiplying gearing driving a centrifugal air-compressor for supercharging, clutch engagement is initiated by the pressure of springs on the weighted clutch-actuating levers, which are carried by the driven clutch-parts. The crank-shaft 1 drives the driving clutch disc 4 through a torsionally flexible shaft 3 provided with fluted ends engaging corresponding parts on the hub of the disc 4 and the member 2 secured to the shaft 1 so as to provide for misalignment of the parts. The disc 4 and the driven plate 7, which is secured to a drum 9, are carried in a bearing 20 in the casing 21. A presser-ring 10 slides in the drum 9 under the pressure of levers 11 pivoted upon the plate 7 and impelled by springs 15 and subsequently by the centrifugal effect of the weights 12 thereon, so that the clutch grip, and thus the air pressure, increases as the drum 9 accelerates. The clutch is disengaged by the action of levers 16 engaged by a sliding collar 18 operated by a lever on a rock-shaft which carries a second lever 33, Fig. 4, on a roller 34 on which bears a cam 37 operated by a lever 35 and so formed that the movement of the collar 18 is slower during the earlier part of the disengaging action. The drum 9 is formed with journals 40, upon which turn planetary pinions 41 gearing with a stationary annulus 42 and with a pinion 43 upon the compressor shaft, which is thus driven at increased speed. Lubricating-oil passes through holes to the bearings of the parts 4, 7 from a central tube 22 and is deflected from the clutch faces to the journals 40 by plates 26, 27, 28. Oil also passes through holes 45 to the teeth of the pinion 43. Escaping oil may also be caught by the pinions 41 and passed through peripheral holes to their teeth.
Patent GB-697090-A (GB)
Title: Improvements in or relating to radar systems
Inventor: WASSELL HAROLD JOSEPH HUGHES
IPC: G01S7/20
Filed: 1950-03-27
Abstract: 697,090. Radiolocation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 6, 1951 [March 27, 1950], No. 7660/50. Drawings to Specification. Class 40 (vii). A height-finding pulse radar system comprises a continuously rotating azimuth searching aerial system transmitting exploring pulses and receiving echo signals which are displayed on a plan-position indicator, and also a directional aerial scanning in elevation and transmitting pulses simultaneously with the azimuth aerial and displaying received echo signals on the plan-position indicator. The scanning of the elevation aerial is synchronized with that of the azimuth aerial and is arranged to commence its sweep when the azimuth aerial is directed towards a chosen target, the elevation aerial being directed in a corresponding direction in azimuth, so that a separation between the target indications derived from the two aerial systems appears on the display, this separation being a measure of the elevation of the target. By arranging a suitably calibrated cursor over the face of the cathode-ray tube the height of the target may be read directly. The sweep of the elevation aerial may take place according to either a symmetrical triangular or a saw-tooth law; in the former case echo signals are displayed in one direction of sweep only. The echo signals from the two aerials may be mixed before application to the cathode-ray tube or they may be applied thereto in alternate radial sweeps of the cathode-ray beam.
Patent GB-493943-A (GB)
Title: Improvements in or relating to air heating apparatus
IPC: F24C3/04
Filed: 1937-03-16
Abstract: 493,943. Heating air. BATT, C., and BATT, E. W. March 16, 1937, Nos. 7705/37 and 11143/38. [Class 64 (i)] In a gas or oil fired incan descent stove, an air-heat ing chamber f through which the products of com bustion from the radiants d pass to the chimney b is so set back from the front of the stove surround that air can flow around the sides, front and top of the chamber but not along the back. The chamber is made of corrugated sheet metal and is provided with one or more baffles g which may be formed with fins Air flows upwards along the sides and rear of the firebricks c at the back of the radiants, then around the chamber f and enters the room through aperture: a<2> at the front of the stove casing. Auxiliary burners k at the sides of the main burner heat the sides of the casing and assist the heating of the air. The products from the auxiliary burners may be conducted into the air-heating chamber.
Patent GB-1412143-A (GB)
Title: Cleaning apparatus
IPC: B08B3/10
Filed: 1972-02-19
Abstract: 1412143 Cleaning oily articles DAWE INSTRUMENTS Ltd 29 Jan 1973 [19 Feb 1972] 7783/72 Heading A4F [Also in Division C7] After the cleaning of oily articles in a heated washing compartment 10 of a cleansing apparatus, a valve 13 is opened to allow some of the cleaning liquid to flow to a compartment 11 where it is vaporized by a heater 14, the vapour passing via a conduit 17 to the compartment 10, and the oil and sludge residue being withdrawn via a drain tap 18 and a sludge door 19, and further cleaning of the articles is effected by transferring them from the compartment 10 to a compartment 20 supplied with cleansing agent by condensation of the vapour and provided with ultrasonic vibrating means. Finally the articles may be suspended in the vapour. Condensation of the vapour where required is effected by water cooled tubes 22, 23.
Patent GB-390314-A (GB)
Title: Improvements in and relating to gas regulators for gas-fired steam boilers
IPC: F23D14/60
Filed: 1932-03-16
Abstract: 390,314. Valves for gas-fired boilers. LARKIN, H., 76, South Park Road, Wimbledon, London. March 16, 1932, No. 7786. [Class 135.] Safety cut-off valves.-Relates to valve devices for automatically controlling the supply of gas to a gas-fired steam boiler of the kind in which a pressure gauge cuts off the gas supply when the boiler pressure reaches a predetermined maximum and reopens the gas supply when the pressure drops again. A ball valve 21, Fig. 1, interconnected with a hand-actuated gas cock 10 by a cam 11 and slotted push tube 12, opens the top of the gas supply tube 7 when the cock 10 is opened. The passage of gas from the gas casing 1 is controlled by a dual rotary sliding valve 24, 25 secured to a disc 16 associated with a Bourdon-tube pressure gauge 2 having a dial and pointer 3, 4. In operation when the cock 10 is opened the ball valve 21 is lifted up from the end of the tube 7 and out of a circular hole 17 in the disc 16 on which it rolls clockwise into a second hole 18 (not shown) in the disc 16 and rests against a stop finger 23 projecting inwards from the casing wall ; the slotted push tube 12 meanwhile falls back and gas passes to a pilot burner, and also to the main burner through the only partly opened valve 20, 24 and passage 14. A small gas supply is thus given until the boiler pressure is at, say, 5 to 10 lbs., whereupon the pressure gauge has moved the valve element 24 to the fully open position, at the same time the moving disc 16 has caused the stop finger 23 to push the ball valve 21 from the hole 18 (not shown) along a guide-way back into the hole 17 which is now clear of the gas tube 7. If the boiler pressure becomes excessive the Bourdon gauge causes the second element 25 of the valve to cut off or restrict the gas supply at the port 20. If the gas supply fails, or is cut off at the cock, or if the boiler pressure drops unduly from any cause, such as by the breaking of a gauge glass, or the fusing of a safety plug, the reduction of pressure allows the Bourdon gauge to rotate the plate 16 carrying with it the ball 21 until the ball drops back on the top of the gas tube 7 and cuts off the gas supply ; the gas supply to the boiler can thus only be restored after a manual operation of the cock 10. In a modification the inlet to the gas casing 1 and the outlet to the boiler are both controlled by ball valves operating in an analagous manner. Fig. 6 shows a further modification in which the ball valve 21, when lifted, rotates a rotary cylindrical valve 39 by means of a pusher bar 35 and crank 36, giving gas supply through a byepass tube 47 and opening also an air supply at a hit-and-miss disc valve 41. The Bourdon tube gauge 1 operates through spaced striker arms 52, 53 adapted to coact with pins 49, 50 projecting from the valve tube 39 through arcuate slots in the casing.
Patent GB-781292-A (GB)
Title: Improvements relating to magnetron oscillators
Inventor: LINHART JIRI GEORGE
IPC: H01J25/54
Filed: 1954-03-17
Abstract: 781,292. Magnetron oscillators. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 24, 1955 [March 17, 1954], No. 7790/54. Class 39(1). In a magnetron with single cylindrical resonant cavity 1 and axial magnetic field, the electrons are injected at the perimeter from conventional guns or annular cathode 5 with radial and tangential components of motion, and circulate in orbits of decreasing radius about the collector electrode 15. The anode 4 of the electron gun is integral with the cavity. Electrode 15 may be negative to reduce the velocity of impact. Electrode 15 may be omitted and the electrons collected on the end walls of the cavity. Electrode 15 or end walls are liquid cooled. The electrons are guided into their orbits by an auxiliary magnetic field generated by coils 10 and pole pieces 11. This field is reverse to the main field generated by coils 7 and pole pieces 9. A permanent magnet structure may be used. Amplitude modulation may be effected by a control grid.
Patent GB-674881-A (GB)
Title: Improvements in or relating to combined pallets and shipping containers
IPC: B65D19/20
Filed: 1949-03-22
Abstract: 674,881. Load-handling pallets. ADDISONSEMMES CORPORATION. March 22. 1949. No. 7819/49. Class 78 (iv). [Also in Group <SP>XVII]</SP> A combined box and load handling pallet comprises platform having sides hinged thereto, the sides carrying securing flaps 20, 21 and top closure flaps 19. The platform has members 13 secured to its underside to permit raising by a lift fork. The box and pallet are wholly constructed of paper stock, corrugated cardboard or the like. the members 13 being spirally wound strips. The members 13 may be of hollow section to accommodate parts of the load e.g. the legs of a sofa, which are passed through holes in the The lower ends of the members 13 may he sealed by a sheet, of the same width and length as the platform, being secured to them. The sides and flaps are foldable flat onto the platform. U.K. Specifications 620,701 and 638,033 are referred to.