baber/WOPTO huggingface dataset:
Patent GB-677434-A (GB)
Title: Improvements in or relating to lubricants for metal patterns used in a moulding process
Inventor: FALLOWS JOHN
IPC: B29C33/60
Filed: 1949-08-30
Abstract: A liquid lubricant comprises kerosene (i.e. ordinary domestic paraffin oil), and mountain wax in the proportion of 0.8-1.2 ounces of montan wax to each pint of kerosene.  The lubricant is suitable for the lubrication of the metal patterns used in producing casting moulds and/or cores by a method consisting in applying to a heated pattern a finely divided moulding mixture containing a thermo-setting resin.  According to the Provisional Specification, the lubricant is suitable for the lubrication of the metal patterns used in the method of producing casting moulds and/or cores described in Specification 674,421, [Group IV(a)].
Patent GB-910077-A (GB)
Title: Improvements in or relating to draperies or curtains for windows
IPC: A47H23/08
Filed: 1961-06-21
Abstract: 910,077. Curtains. UNITED MERCHANTS & MANUFACTURERS Inc. June 21, 1961 [Aug. 12, 1960], No. 22498/61. Class 52 (5). A composite window curtain has an outer liner part 14 secured to an inner drape part 15 by sewing for only a portion of the length of each with the top parts 17, 18 being unfastened and provided with a sleeve 19 for a curtain rod, and the opposite edges of parts 14, 15 being independent of one another to permit independent lateral movement of the two parts 14, 15.
Patent GB-655003-A (GB)
Title: A process for the manufacture of siloxanes
IPC: C08G77/00
Filed: 1948-08-26
Abstract: In the preparation of siloxanes by condensing a silane or a mixture of silanes having on the average from one to two hydrocarbon radicals attached to the silicon atom the remaining valencies of which are satisfied by chlorine and alkoxy radicals and the total number of alkoxy radicals being at least as great as the total number of chlorine atoms, the condensation is effected under anhydrous conditions in the liquid phase in presence of ferric chloride.  The alkyl chloride formed as a by-product is distilled off.  In examples: (1) CH3Si(OC2H5)3\t and CH3SiCl3 are heated in presence of FeCl3; (2) (CH3)2SiOC2H5Cl is heated in presence of FeCl3; (3) CH3OH and (CH3)2SiCl2 are reacted to form (CH3)2SiOCH3Cl, which is heated in presence of FeCl3; (4) C6H5SiCl3, C6H5CH3SiCl2 and CH3SiCl3 are treated with C2H5.OH and the mixture heated with FeCl3; (5) as in (4) except that the mixture is diluted with toluene before addition of the FeCl3; (6) FeCl3 is added to (CH3)2SiCl2 and (CH3)2Si(OC2H5)2, the mixture saturated with HCl and heated; (7) C2H5OH is added to a mixture of C6H5CH3SiCl2, C6H5SiCl3 and CH3SiCl3, FeCl3 added and the mixture heated; (8) C6H5SiCl3 and C2H5OH are reacted to give C6H5Si(OC2H5)2Cl, which is heated in presence of FeCl3; (9) CH3Si(OC2H5)3 and C6H5CH3SiCl2 are heated in presence of FeCl3; (10) CH3 Si (OC2 H5)3, (C6H5)2 Si Cl2 and C6H5CH3SiCl3 are heated in presence of FeCl3; (11) C6H5Si(OC2H5)2Cl is heated in presence of FeCl3; (12) isopropyl alcohol and (CH3)2SiCl2 are reacted to form (CH3)2SiOC3H7Cl, which is heated in presence of FeCl3; (13) butyl alcohol and (CH3)2SiCl2 are reacted to give (CH3)2SiOC4H9Cl, which is heated in presence of FeCl3; (14) stearyl methyl dichlorosilane and ethyl alcohol are reacted and the product heated in presence of FeCl3.ALSO:Alkyl chlorides of formula R1Cl are prepared by heating RSi(OR1)2Cl or R2SiOR1Cl where R is an alkyl or aryl group in presence of anhydrous ferric chloride.  Silanes of formula RSi(OR1)2Cl or R2SiOR1Cl where R is an alkyl or aryl group and R1 is an alkyl group are prepared by reacting polychloro-silanes of formula R4-mSiClm where m=2 or 3, with silane esters of formula R4-nSi(OR1)n where n = 1, 2, 3 or 4 or with alcohols.  In examples the following are reacted: (1) CH3Si(OC2H5)3 and CH3SiCl3 in presence of FeCl3; (3) CH3OH and (CH3)2 SiCl2 to form (CH3)2SiOCH3Cl; (4) C6H5SiCl3 C6H5CH3SiCl2 and C2H5OH; (6) (CH3)2SiCl2 and (CH3)2Si(OC2H5)2 in presence of FeCl3 and HCl; (7) C2H5OH, C6H5CH3SiCl2, C5H5 SiCl3 and CH3SiCl3; (8) C6H5SiCl3 and C2H5OH to form C6H5Si(OC2H5)2Cl; (9) CH3Si(OC2H5)3 and C6H5CH3SiCl2 in presence of FeCl3; (10) CH3Si(OC2H5)3, (C6H5)2SiCl2 and C6H5CH3SiCl2 in presence of FeCl3; (12) Isopropyl alcohol and (CH3)2SiCl2 to form (CH3)2SiOC3H7Cl; (13) butyl alcohol and (CH3)2SiCl2 to form (CH3)2 SiOC4H9Cl; (14) ethyl alcohol and stearylmethyldichlorosilane.  In all examples the product is heated in presence of FeCl3 to yield a siloxane (see Group IV (a)).
Patent GB-753288-A (GB)
Title: Improvements in or relating to draw bar attachments
IPC: A01B69/00
Filed: 1954-08-03
Abstract: 753,288. Draw-gear connections. DARVILL, A. B. Oct. 5, 1954 [Aug. 3, 1954], No. 22560/54. Class 103 (5). The transverse member 2 at the rear of a tractor has a number of holes 14 for the attachment of crossed links 7, 8 which are connected by further universal joints to the transverse member 3<SP>1</SP> on the trailer and the points of attachment to the towing vehicle are spaced apart to a greater degree than those on the towed vehicle.
Patent GB-256414-A (GB)
Title: Improvements in or relating to the valves and valve gear of internal combustion engines
IPC: F01L1/12
Filed: 1925-09-10
Abstract: 256,414. Douglas Motors, Ltd., and Pullin, C. G. Sept. 10, 1925. Valve chests.-Instead of providing separate caps over the valves as indicated, there may be one large cap or cover, leaving a large opening for extraction of the valve.
Patent GB-708141-A (GB)
Title: Hydraulic braking system for vehicles
IPC: B60T17/18
Filed: 1951-09-28
Abstract: 708,141. Hydraulic brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Aug. 19,1952 [Sept. 28, 1951], No. 22653/51. Class 103(1) In an hydraulically-operated braking system which comprises a braking member 1 rotatable with the vehicle wheel 2, a non-rotatable friction member freely movable to frictionally engage said braking member, hydraulically-operated brake operating mechanisms 4 for effecting said engagement, a master cylinder 6 for pressurizing said system and a liquid reservoir 5 for replenishing said system, the liquid reservoir 5 is so positioned that the level of the liquid contained therein is not higher than the lowest of the said brake operating mechanisms 4. The Figure shows the application of the invention to a motor vehicle fitted with'hydraulically-operated disc brakes of the type described in Specification 688,382. Each wheel 2 has a disc 1 rotatable with it and a caliper-type housing 3 containing hydraulically-operated piston and cylinder mechanisms 4, straddles a portion of the outer periphery of the disc. The reservoir 5 is located above the master-cylinder 6 in which a piston 7, acting against a spring 12, operates when the footpedal 8 is actuated; thus feeding hydraulic fluid to the operating-mechanisms 4 through pressure lines 10. Friction pads slidably associated with the housing 3 are not spring retracted and the liquid level AA in the reservoir is below the level of the lowest brake operating mechanism.
Patent GB-1037704-A (GB)
Title: Storage of bromine
IPC: C01B7/09
Filed: 1964-06-02
Abstract: In storing bromine in stainless steel containers a nitrogen oxide e.g. below 0.1% is mixed with the bromine to prevent corrosion of the container. The nitrogen oxide may be NO, N2O, NO2, NO2, N2O3 and may be added as a gas or by agitating fuming nitric acid with bromine.ALSO:In storing bromine in stainless steel containers a nitrogen oxide, e.g. below 0.1%, is mixed with the bromine.  The containers may be of chromium, nickel or molybdenum steels and the nitrogen oxide may be N2O, NO, NO2 or N2O3.  The oxide may be added by bubbling gas through bromine or by agitating fuming nitric acid with bromine, when after phase separation, excess nitric acid is removed. The container may have lead fittings and the outside may be coated with bromine-resistant material, e.g. silver or lead.
Patent GB-757336-A (GB)
Title: Improvements in or relating to couplings, particularly for well head equipment
IPC: E21B33/04
Filed: 1953-08-18
Abstract: 757,336. Joint-making packing. GRAY TOOL CO. Aug. 18, 1953 [March 4, 1953], No. 22725/53. Class 122(3) [Also in Group XXVIII] A sealing ring S of steel or brass, comprises an inner, annular flange portion 110 including oppositely disposed, flexible lips 111, 112 and an integral, centrally disposed, external rib 24, the lips having exterior sealing surfaces 26, 28 which taper outwardly toward the rib and engage with tapered sealing surfaces 14, 30 on a pair of conduit parts, and the rib being of substantial thickness as compared. with the lips and having opposite faces F engageable with end surfaces on the conduit parts. As shown in Fig. 10, the acute angle between the horizontal centre line of the rib 24 and the surfaces 26, 28 is greater than the acute angle between the centre line and the surfaces 14, 30, and the corner points B on the conduit parts are in longitudinal alignment with the junction P of the surfaces 26, 28 and F of the ring S; also, the angle of taper of the inner surfaces of the lips 111, 112 is less than that of the outer surfaces of 28, 26. In drawing the conduit parts together initial contact between the surfaces 14, 30 and 26, 28 is made at points A' and when the flanges 16, 20 of the conduit parts engage the surfaces F of the rib 24 those sealing surfaces are parallel with and flush against one another as shown in Fig. 11, the lips 111, 112 having been flexed inwardly so that the entire length of the inner face of the flange 110 is substantially straight.
Patent GB-349839-A (GB)
Title: Improvements in projectiles having means for illuminating the trajectory
IPC: F42B8/02
Filed: 1930-07-29
Abstract: 349,839. Projectiles. NABL, A., 11, Christallinggasse, Baden, near Vienna. July 29, 1930, No. 22814. [Class 9 (i).] A tracer projectile carries a plurality of charges adapted to produce differently coloured flames and to come successively into operation. As shown, the projectile contains flaine-producing charges a, b, of which the outer charge b may form a protection for the inner charge a, which latter may be composed of chemicals more sensitive to moisture. The charge b may be composed of material capable of being ignited by the firing of the shot and be protected by a piece of lacquered tinfoil d or the like. On firing, the tinfoil collapses into a cavity c at the base of the charge b. The colours of the flames emitted by the charges a, b are preferably complementary to each other. The projectile may contain more than two charges. The compositions a, b are of the nature commonly used in coloured fireworks.
Patent GB-845519-A (GB)
Title: Device for ejecting a detachable appurtenance from a vehicle
IPC: B64D25/10
Filed: 1956-07-24
Abstract: 845,519. Discharging from aircraft. REACTION MOTORS Inc. July 24, 1956 [July 26, 1955], No. 22867/56. Class 9(2). [Also in Group XXXIII]. Apparatus for discharging an article from a height, which in the embodiment consists of seat ejecting mechanism on aircraft wherein the ejection forces are derived from a rocket, comprises a seat 23 mounted within the cockpit 10 by means of a hollow member 20 which co-operates with laterally disposed guide rails (not shown) secured to the cockpit structure. The member 20 is shaped to partially surround a catapult tube 15 fixed to the floor 14 of the cockpit by a bracket 16. An inner catapult tube 17 fits slidably within tube 15 and is sealed by an O-ring 18 and secured at its upper end at 19 to the seat member 20. A source 27 of high pressure gas having a control 28 mounted on one side 29 of the seat is connected by a tube 30 to a chamber 33 in the base of tube 15. A sealed piston 34 is mounted in chamber 33 and terminates in a firing pin 36 in alignment with an aperture 37 formed in a partition 38 in the tube 15. A percussion cap 40 and an ignition charge 39 are mounted above aperture 37 and when ignited by impact of pin 36 furnishes the necessary pressure and temperature to ignite the main rocket charge 43. The gases generated by the burning rocket pass out of tube 17 through a downwardly and rearwardly inclined nozzle 44 whereby the seat is driven to a height at which it is safe for the occupant of the seat to deploy his parachute. U.S.A. Specification 2,552,181 is referred to.
Patent GB-1134476-A (GB)
Title: Improvements in or relating to devices for heating currents of gas
IPC: F27B9/30
Filed: 1967-05-17
Abstract: 1,134,476. Circulating furnace atmospheres. INDUGAS, GESELLSCHAFT F R INDUSTRIELLE GASVERWENDUNG, m.b.H. 17 May, 1967 [13 July, 1966], No. 22911/67. Heading F4B. . A heating flue in a continuous heat treatment furnace of the forced convection type comprises a fan 4, radiant heaters 7 e.g. gas-fired radiant tubes, and a series of metal lattices or nets 8 disposed between said heaters. Members 8 may be of intersecting corrugated or zig zag formation to define parallelogram shaped cells encircling the heaters, Fig. 3 (not shown). They may be made of creep- and scale-resistant metal in the form of strips or wires. The heaters may be electric radiators.
Patent GB-531942-A (GB)
Title: Improvements in and relating to the measurement of deformations of pieces subjected to stresses
IPC: G01B5/30
Filed: 1939-08-08
Abstract: 531,942. Extensometers. PICCARD, A., and GUILLISSEN, J. Aug. 8, 1939, No. 22917. [Class 106 (ii)] The deformations of a specimen under test are measured by photographically registering the spacing apart of lines or marks on the specimen which does not as usual have the measuring apparatus secured to it. Two tubes 3, 4 carrying half transparent mirrors 5, 6 are arranged to rotate about their axis and to slide telescopically above an electric lamp 2 in a casing 1. Two objectives 7, 8 are secured to a thick metal plate 9 the position of which relative to the specimen is adjusted by legs 10, 11. A third non-adjustable leg 12 carries the apparatus. The legs 10, 11 are mounted upon screws 13 of fine pitch the leg 11 being secured to the plate 9 by a spring blade 14 permitting oscillation in one direction only. The legs terminate in pointed heads 15. The device may be fixed temporarily to the specimen by electromagnets of which the leg 12 and a core 16 form the two cores. A metal plate 17 carries two transparent micrometric scales located upon the diameters of tubes 3, 4. A photographic plate is placed sensitized face downwards on the plate 17 against which it is held by a pad on the inside of a cover 18. The plate registers the image of the marks on the test piece and at the same time the micrometric scales.
Patent GB-239886-A (GB)
Title: Improvements in or relating to wireless telegraphy and telephony
IPC: H04B7/12
Filed: 1925-09-14
Abstract: 239,886. Telefunken Ges. fiir Drahtlose Telegraphie. Sept. 15, 1924, [Convention date]. Void [Published under Sect. 91 of the Act],. Atmospherics and undesired signals, eliminating or limiting.-In order to secure intelligible disturbance-free reception, messages are transmitted simultaneously on two widely-different frequencies. Keying is effected from the service exchange over a common conductor to the transmitting station. At the receiving end messages are fed to a common telephone or recorder or they may be led to different receivers each provided with a disturbance limiter or filter.
Patent GB-1496358-A (GB)
Title: Gear change mechanisms
IPC: F16D21/04
Filed: 1975-05-12
Abstract: 1496358 Positive clutches; couplings ROLLSROYCE Ltd 12 May 1975 [22 May 1974] 22987/74 Headings F2C and F2U A double positive clutch for a reverse gear between a gas turbine engine and a rail vehicle comprises an axially slidable sleeve 28 splined at 30, 32 to a driving shaft 14 and formed with internal teeth 28a, 28b selectively engageable with externally toothed rings 18b, 20b connected to gears 18a, 20a freely rotatable on the shaft 14 by torsionally resilient couplings 34 which, if the teeth to be engaged are out of register, yield to permit engagement. The torsionally resilient couplings each comprise rubber blocks 34 bonded to metal plates 36, 38 received between projections 30b, 31a on the ring 18b and a hub 31 fast with the gear 18a. If during clutch engagement the teeth 30 on the ring 18b are out of register with the teeth 28a on the sleeve 28, the ring 18b rotates relative to its hub to permit engagement of the clutch teeth 28a, 30. During drive torque is transmitted from the ring 18b, to the hub 31, through the projections 30b, 31a. The ends of the teeth 30 are inclined to facilitate clutch engagement. The sleeve 28 is moved axially by selectively supplying pressure liquid through lines 40, 42 to chambers 44, 46. The toothed rings 18b, 20b are spaced so that the sleeve 28 is always in engagement with one of the rings and during a ratio shift is in engagement with both rings. The gears 18a, 20a mesh output gears 22, 26 directly and through an idler 24.
Patent GB-384356-A (GB)
Title: Novel or improved locking device for the forward end of a sliding roof of a vehicle b
IPC: B60J7/185
Filed: 1931-08-15
Abstract: 384,356. Road-vehicle opening tops. AUSTIN, SIR H., Lickey Grange, Bromsgrove, Worcestershire. Aug. 15, 1931, No. 23029. [Class 108 (i).] In sliding panels for the roofs of road vehicles the sliding panel is adapted to be manipulated by a lever on the panel co-operating with an arm secured to the body of the vehicle and the panel is adapted to be held in closed position by co-operating ledges on the panel and body respectively and also if desired by a spring plunger. The panel B is provided with a ledge b which is adapted to overlap, when in the closed position, a ledge a on the body. A bracket C on the panel B has mounted thereon, by means of lugs d, d<1>, a lever E of the shape shown, the lever E being adapted to co-operate with an arm G extending rearwardly and upwardly. In operation depression of the lever E elevates the front of the panel, the arm G acting as a fulcrum for the lever and the panel can then be withdrawn by the lever E. A spring plunger H mounted on the lug d<1> is adapted to enter an aperture g<1> when the panel is closed in order to lock it securely.
Patent GB-275536-A (GB)
Title: Process of treating crude oils and fats
IPC: C11B3/12
Filed: 1926-09-20
Abstract: 275,536. Metallbank. und Metallurgische Ges. Akt.-Ges. Aug. 9, 1926, [Convention date]. Fats and fatty oils, purifying.-Suspended and colloidal impurities in crude animal and vegetable oils obtained by pressing, extraction, melting out, &c. are freed from water by a combined heat and vacuum treatment, preferably at a relatively low temperature, whereby they are completely removed from the oil in the subsequent filtration step, and the formation of sediment when the oil is stored is avoided. The vacuum may be increased by interposing injectors or similar devices between the treatment vessel and a condenser for the steam evolved, whereby the temperature used may be reduced. In an example, cold pressed, crude, sesame oil is heated under high vacuum and with repeated stirring at 50‹ C. for ¢ hour, and the steam passed to a condensing plant. After cooling to 22‹ C., the vacuum is released, and the oil passed to a filter press. Alternatively the oil may be sprayed into the treatment vessel.
Patent GB-659690-A (GB)
Title: Improved full reflection mirrored clock face for incorporation into any household mirror
IPC: G04B47/02
Filed: 1949-09-08
Abstract: 659,690. Clocks. BACHLEDA, J. Sept. 8, 1949, No. 23246. [Class 139] In a clock the hands are rotated between two mirrors a and b, Fig. 1, the outer one a of which is formed by a portion of the glass on which the dial markings are made.
Patent GB-821859-A (GB)
Title: Manufacture of ornamental and display plastic sheets of thermoplastic resins
IPC: B29C48/17
Filed: 1956-07-28
Abstract: <PICT:0821859/IV (a)/1> <PICT:0821859/IV (a)/2> <PICT:0821859/IV (a)/3> A process of making an ornamental and display sheet from thermoplastic resin comprises rapidly cooling the resin from a plastic state to a set whilst under asymmetrical stress to impart to the set resin a state of "plastic memory" forming the internally stressed resin into pellets or granules, arranging the pellets or granules in a layer, heating the layer to a temperature between the softening and melting point of the resin until the internal stresses relax and the pellets alter their shape, at least some of the pellets tilting with respect to the layer and cooling the layer to cause the softened pellets to adhere together to form the sheet.  The resin may be polyethylene and the heating temperature be between 170 DEG  C. and 210 DEG  C.  The pellets may be arranged upon and become adhered to a solid sheet of thermoplastic resin, paper or cloth.  Differently coloured pellets may be used and may be arranged in definite designs. Resin 4 is extruded from a cylinder 1, is cooled and cut into pellets 10 by a knife 7.  The pellets 10 may be arranged in an open mould 13 for the heating process.
Patent GB-741517-A (GB)
Title: Typewriting machine
IPC: B41J7/60
Filed: 1953-08-25
Abstract: 741,517. Typewriters. OLIVETTI & C., SOC. PER AZIONI, ING. C. Aug. 25, 1953 [Sept. 6, 1952], No. 23454/53. Class 100 (4). [Also in Group XXIV] Type-wheel machines; power type actions.- The type-wheel 31 of a typewriter or like machine is rotatively selected in either of two directions from a normal position to a selected position with harmonic motion through a linkage having a movable fulcrum and is then returned to starting position. The type wheel is detachably mounted on hub 30, Figs. 1, 2, driven from a gear sector 28 which is rotated various amounts by a lever 26 moved by a lever 24 adjustably fulcrumed to an oscillating cage 13, 14, Fig. 2. The cage 13, 14 is pivoted at 12 and oscillated by a link 19 connected to a crank 20 on a shaft 21 which makes one revolution each time a key 1 is operated. The fulcrum between the cage 13, 14 and the lever 24 is one of a series of fulcrum pins 37, Figs. 1, 3, selectively positioned by a key action to form a connection between the cage and lever. Actuation of a key 1 effects sliding movement of the corresponding pushbar 4 so that it is positioned below a thrust-pin 36 and engages a universal bar 38. This rocks arms 39, 41 to release a clutch 42 and effect a onerevolution power drive to shaft 43 and a disc 51. Rotation of the disc 51 via mechanism 53, 62 removes ejector pins 61 and allows a clockwise action of a bail 45 which engages below the shifted push-bar 4 and pushes a selected fulcrum pin 37 into position. At the same time a lever 52 releases a clutch 22 to effect one revolution of the shaft 21. Alignment for impression; hammer impression arrangements.-A few degrees before the completion of half a revolution of the crank 20 a cam 80 engages a roller 81 which turns a lever 82 counterclockwise. A compression spring 83 shifts the lever 76 and moves a rod 72 which causes an aligner 73 to engage a slot of an index wheel 75. If, at the moment the lever 73 is swung clockwise, the type wheel 31 has not yet completed its rotation, the lever 73 may no t be able to enter a slot of the index wheel 75. In this case the spring 83 is compressed until the lever and slot are in alignment when the rod 72 suddenly moves to the left under urge of the spring 83. At the 180 degree position the cam 80 gives maximum movement to the rod 72 and impression of a character is made by the operation of a hammer 71 situated in the centre of the type-wheel. Type-wheel construction.-The type 68 are mounted on shanks 69 slidably mounted in a series of radial slots in the type-wheel.