baber/WOPTO huggingface dataset:
Patent GB-683493-A (GB)
Title: Improvements in or relating to bleaching processes
Inventor: SEYB LESLIE P
IPC: D06L4/23
Filed: 1950-06-21
Abstract: Cotton materials are bleached continuously in the following steps: (1) steeping in hypochlorite solution of pH 7.0-9.5 and available chlorine content 0.3-4.5 g./litre containing a wetting and penetrating agent; (2) treatment with 0.5-3 per cent caustic alkali, and (3) further bleaching in hypochlorite as in (1); the materials are in contact with the solutions for a time up to 1 minute, followed by steeping for a time up to 20-60 minutes.  In modifications: (a) the wetting agent and hypochlorite are provided in separate solutions, the goods being passed through them in succession, and (b) the caustic alkali treatment is split into two or more steps, first at a concentration of 0.5 per cent and then at 3 per cent. Preferably the hypochlorite steeping is followed in each case by a cold water wash for up to 1 minute. The caustic steeping is preferably carried out in the presence of steam for 20-60 minutes, followed by a hot water wash, white sour (e.g. 1 per cent hydrochloric acid) and cold water wash, all for up to 1 minute. After the final hypochlorite treatment and washing, the goods are subjected to an anti-chlor and are then cold-water washed and dried. An anti-chlor may also follow the first hypochlorite treatment. Suitable wetting-agents for the initial treatment are sodium lauryl sulphate and sodium alkylbenzene sulphonates.  No initial desizing is necessary.  The desired pH of the bleaching solution is maintained by the natural buffer which exists between hypochlorite ions and hypochlorous acid over this pH range.  The whole process (except steaming and hot-water washing) is operated at room temperature and at atmospheric or higher pressure.  The caustic alkali is preferably sodium hydroxide, with sodium silicate, pine oil, soaps or other detergents, if desired.  Mercerization may be effected after or during the bleaching process.  The operation may be totally continuous, or the goods may be moved by hand or conveyer from one zone to another.  Examples are given of the bleaching of cotton gray goods.
Patent GB-770255-A (GB)
Title: Diphenyl ether-4:4-disulphonyl azide and the use thereof in rubber compositions
IPC: C08J9/10
Filed: 1955-05-31
Abstract: The invention comprises diphenyl ether-4 : 41-disulphonyl azide which is prepared by adding an alkali metal nitrite, preferably dry sodium nitrite, to an acetic acid suspension of diphenyl ether - 4 : 41 - disulphonyl hydrazide.  An excess of sodium nitrite is preferred and other alkali metal nitrites specified are potassium and lithium nitrites.  The compound is used as a blowing agent in rubber compositions (see Group V). U.S.A. Specification 2,552,065 is referred to.ALSO:Diphenyl ether-4 : 41-disulphonyl azide (see Group IV(b)) is used as a blowing agent in rubber compositions.  In an example natural rubber smoked sheet was milled, compounded with zinc oxide, whiting, lithopone, stearic acid, hydrocarbon oil, sulphur, benzothiazyl disulphide and diphenyl ether-4 : 41-disulphonyl azide and cured to give a cellular product.
Patent GB-508134-A (GB)
Title: Improvements in box-magazines with narrowly spaced lips for long cartridges
IPC: F41A9/70
Filed: 1938-05-25
Abstract: 508,134. Magazines for firearms. WALTHER, F., WALTHER, G., and WALTHER, E., (trading as WALTHER, WAFFENFABRIK, C.). May 25, 1938, No. 15576. Convention date, April 16. [Class 119] A box-magazine for firearms has spring lips 2 at. least one of which is out away at 7 to provide access for the thumb of the user, so that the follower 6 may be depressed, the gap 7 being located approximately in the transverse plane in which lies the centre of pressure of the magazine spring on the follower. Tendency of the follower to tilt during depression is thereby eliminated.
Patent GB-716461-A (GB)
Title: Improvements in or relating to piston rings
Inventor: NORTON SAMUEL H
IPC: F16J9/20
Filed: 1952-06-20
Abstract: 716,461. Piston packing. THOMPSON PRODUCTS, Inc. June 20, 1952, No. 15577/52. Class 122(1) A piston ring comprises axially spaced side walls composed of a number of ring segments 14, 15, each segment being supported by an integral web 16, adjacent webs being oppositely inclined between the sides. Each segment has an extended portion 16a, merging into a cross piece 16c, at 16b merging at 16d into the opposite segment radially outwardly of the point 16b. The ring is made from a flat sheet slit and formed into a channel section, the outer edges 22. 23, Fig. 8, of which are rolled to taper the edges and form the segments to wedge shape to maintain an equal gap between them when the channel section is formed into a ring. In a modification the flat sheet is formed with apertures in addition to the slits so that in the finished ring each segment has an open slot at its inner periphery.
Patent GB-1419962-A (GB)
Title: Free-radical reagent for oxidation
Inventor: BARTON, DEREK HAROLD RICHARD
IPC: C08J9/36
Filed: 1972-04-05
Abstract: 1419962 Free radical reagents for oxidation processes BEECHAM GROUP Ltd 14 March 1973 [5 April 1972] 15592/72 Headings C2C and C2U The invention comprises free radical reagents consisting of a solution of an adduct of a stable tris-phenyl aminium cation radical in which the substituents are electro-negative, and oxygen in a neutral non-hydroxylic solvent. They may be prepared by dissolving a stable trisphenyl aminium salt in a neutral non-hydroxylic solvent in the presence of oxygen. The preferred aminium cation radical is the tris-(pbromophenyl)-cation radical and suitable aminium salts are hexachloroantimonate and tetrafluoroborate of tris - (4 - bromophenyl) - amine. Suitable non-hydroxylic solvents are, hydrocarbons, halohydrocarbons, acetonitrile or nitromethane. The free radical reagents may be used for oxidation processes, particularly for the oxidation of compounds containing cis-1,3-diene groups. In the examples (a) ergosteryl acetate is reacted with tris-(p-bromophenyl)-aminium fluoroborate and oxygen to give ergosteryl-5,8α- peroxido-3#-acetate and (b) bicyclohexenyl is similarly oxidized to bicyclohexenyl peroxide of formula
Patent GB-713335-A (GB)
Title: Catalyst recovery process
Inventor: GRAFF-BAKER CAREY
IPC: C07C45/81
Filed: 1951-07-02
Abstract: Hydrogen fluoride and boron trifluoride are separated from tolualdehyde-hydrogen fluoride-boron trifluoride compositions by evaporation in a continuous manner in the presence of an inert liquid.  The compositions occur in the manufacture of tolualdehyde by reacting toluene and carbon monoxide in the presence of a hydrogen fluoride-boron trifluoride catalyst, for example as described in Specification 633,176, [Group IV (b)].  The composition is mixed with toluene or chlorobenzene and passed down a packed column fitted at the top with a reflux condenser and at the bottom with a boiler or a falling film evaporator.  The evaporator may comprise an externally heated vertical tube lined with metal gauze down which the liquid flows as a film.  Hydrogen fluoride and boron trifluoride pass out the top of the reflux condenser, while tolualdehyde mixed with the inert liquid is continuously removed from the evaporator.  U.S.A. Specification 2,534,017 is referred to.
Patent GB-575421-A (GB)
Title: Improvements in or relating to nail-driving apparatus
IPC: B25C1/00
Filed: 1943-09-23
Abstract: 575,421. Hand tools for nailing. HOTVEDT, L. C. Sept. 23, 1943, No. 15612. [Class 89 (iii)] A hand tool for nailing comprises a driver which is cocked and then released for 'its driving stroke by pressure on a trigger, and a rotary magazine mounted adjacent to the driving nozzle and adapted automatically to supply successive nails to the nozzle in time with the strokes of the driver. As shown, the trigger 14 is connected by a pivoted link 15 to a lever 12 pivoted at 13 in the handle 11 of the tool and urged in an anticlockwise direction by a spring 19. A bracket 22 pivoted'to the lever 12 and biased by a spring 36 has pivoted to it a detent lever 24 which is biased by a spring 30 and has a hook 32 adapted to engage in front of a lug 33 on the rear extension 34 of the driver 35, which is slidable within the barrel portion 10 of the tool and has a reduced extremity 41 operating in the nozzle 68. Normally, the detent lever, 24 is held against rotation in a clockwise'direction by the engagement of its tail 26 with' an extension 27 of'the lever 12. When'the trigger 14 is pressed, the lever 12 and detent lever 24 retract the driver against its 'spring 40 until the extension 27 moves clear'of the tail 26. The spring 40 then overcomes the spring 30 and the driver is released for its driving stroke. The nail magazine comprises rotatable discs 51 and a fixed trough 53 mounted on an inclined spindle 54. The discs 51 are slotted to receive nails 52 by their heads., and are rotated step-by-step by a ratchet 56 and a pawl 57 operated by a rod 63 and a plate 64 on the lever 12. Successive nails are thus presented in horizontal position to the driver nozzle, which comprises two upper jaws 43 which are held closed by a light spring 47 and a lower jaw 44 adapted to be opened bodily, in time with the steps of the discs 51, by a lever 48 operated by a second pawl which engages the ratchet 56, so as'to provide a free entry for successive nails into the nozzle. Alternatively, the nails may be supplied to the nozzle by a paper strip. A fixed guard may be provided to keep the ends of the nozzle jaws clear of the work into which nails are to be driven. The tool may be adapted for operation pneumatically, hydraulically or electrically by arranging for the lever 12 to be swung by an eccentric driven, for example, by an .electric motor mounted on the handle, the lug 33 being provided on a bell-crank lever pivoted to the hammer so as to be moved into position to co-operate with the hook 32 when the trigger is depressed.
Patent GB-457395-A (GB)
Title: Improvements in oil-immersed circuit-breakers
IPC: H01H33/57
Filed: 1935-05-29
Abstract: 457,395. Oil - break switches. WEST & CO., Ltd., A., and BREEZE, V., Lewes Road, Brighton. May 29, 1935, No. 15632. [Class 38 (v)] Cases.-An oil-immersed switch has a tube through which oil disturbed by the arc produced when the circuit is broken is adapted to be discharged, and partitions or enclosures for the break-gap are dispensed with so that the break takes place in the main body of oil in the tank. The tube is located with one end adjacent but not enclosing the break-gap. Each terminal 1 is connected to spring-controlled main and arcing contacts 2, 3 co-operating with contacts 8 on the movably bridging-member 4. The tube 13 depend from openings 14 in the cover 11 separating the oil tank 9 from an upper chamber 10, and have their lower ends cut away to present a wide opening to the arcing region. Oil discharged by the arcing will flow back through the tubes 13 into the tank. The tubes are braced against outward movement under the oil-impact by means of brackets 15 on the contact supports 16, and collars 17. The tubes can be coiled or bent if it is desired to increase their length.
Patent GB-1431029-A (GB)
Title: Mojnting adaptor
IPC: F16B2/06
Filed: 1974-04-09
Abstract: 1431029 Clamps HONEYWELL GmbH 9 April 1974 [12 April 1973] 15650/74 Heading E2B An adaptor 9 for mounting an article such as a temperature controller 6, to an hexagonal support comprises a body provided with two internal hexagonal surfaces of different widths across the flats 10, 15 to accommodate different sized supports, the body including an extension 11 to which the article is fastened. As shown, the controller is mounted on a vessel wall 1 into which is screwed by means of a threaded neck 2 a tubular member 3 accommodating a liquid filled temperature sensor 4 which is connected to the controller by a capillary tube 5. The tube 5 has a hexagonal head 8 comprising the support, the adaptor being fixed thereto by a screw 14. The extension 11 is fixed to a cylindrical spigot 12 of the controller by a screw. In the arrangement shown, the flats 10 and 15 are offset only in a circumferential direction but they may also be longitudinally spaced.
Patent GB-685868-A (GB)
Title: Improvements relating to sliding doors
IPC: E05D15/06
Filed: 1950-06-23
Abstract: 685,868. Vehicle doors. PEARSON, D. A. May 28, 1951 [June 23, 1950], No. 15696/50. Class 103 (ii). [Also in Group XXXIV] A sliding door for a vehicle is suspended by means comprising a bracket adapted to be rigidly secured to the door, a hollow cup-shaped runner bearing rigidly secured to the bracket and having an internal substantially hemispherical bearing surface, a runner ball within the hollow interior of the runner bearing for engaging a track, and bearing balls confined between the bearing surface and the runner ball permitting the runner ball to rotate freely in any direction. The door 15 is suspended at its front and rear ends by runners 14 which engage front and rear tracks 13, 12, positioned on the interior of the vehicle structure above the door opening. The front track 13 is curved inwardly and rearwardly and the front end of the rear track is cranked outwardly and forwardly in order that the door, during its opening movement, may be moved from the closed position x, in which it abuts a shut pillar 24 and is flush with the outer panel 23 of the body, to an open position y in which the door is located within an opening in the wall of the body behind the panel 23. Each track 12, 13 comprises a channel-section member having upstanding flanges 17 and a part-circular depression 16 formed in the web to accommodate a ball runner 14. Each runner comprises a hollow inverted cup-shaped bearing body 27 having an internal hemispherical surface 28 within which are located a runner ball 29 and a number of bearing balls 30, retained in position by a ring 31. A freely rotating sleeve 35, which may be faced with rubber, surrounds the body 27 and rolls on one of the flanges 17 if the ball 29 tends to run out of the depression 16. The surface 28 of the body 27 may be casehardened or a suitable hard material may be electro-deposited or a separate hardened shell may be inserted in the body 27. The tracks 12 and 13 each comprise the formed members shown in Fig. 11 or they may comprise moulded rubber bonded within the rectangular section supporting channel members, which members are welded to a central bar 21. An additional horizontal supporting-bar, Fig. 3 (not shown), may be used. Each runner body 27 carries a screwed shank 27a for attachment to an angle bracket 36, Fig. 11, secured to the inside or outside wall of the door 15. Resilient spacing members, Fig. 4 (not shown), may be secured to the top of the door adjacent each bracket 36 and the bottom of the door may be provided with spring-loaded rollers 38 which engage guide tracks 37 on the floor of the vehicle. Dust excluding brushes 45 may be fitted and similar brushes may surround the door opening.
Patent GB-1204412-A (GB)
Title: Improvements relating to rotary machines
Inventor: VOSE JOHN KENNETH
IPC: H02K5/173
Filed: 1968-04-02
Abstract: 1,204,412. Bearings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 1 April, 1969 [2 April, 19681, No. 15748/68. Heading F2A. [Also in Division H2] A bearing of a rotor of a rotary machine (e.g. a dynamo-electric machine) is protected from stationary vibration marking by providing an auxiliary electric motor having a rotor which is rotationally fast with the rotor of the machine, switching means being provided to cause the shaft to move when the machine is not in use. As illustrated a rotor shaft 1 of an induction motor is supported in roller bearings (not shown) and has a main rotor 2 provided with ventilation ducts 3 and conductors 4 connected to end rings 5. The main stator 6 is supported in a casing 7. A centrifugal cooling fan backplate 8 is secured to a ring 10 on the shaft and carries fan blades 11. The backplate serves as the rotor of the auxiliary motor.
Patent GB-1603586-A (GB)
Title: Sound-absorbing ventilation installation for openings in buildings
IPC: E06B7/10
Filed: 1978-04-20
Abstract: Above a window there is arranged a ventilation lock (2) which permits air to enter into the room, but prevents noise from penetrating. A roller-blind casing (3) is located in front of the ventilation lock, the intermediate wall (6) exhibiting, laterally, an opening (9) for the passage of air, and an air-outlet opening (12) into the building interior being arranged on the wall (7), of the ventilation lock, which is laid against the room, to be precise on the side located opposite the opening (9). All the walls (6, 7) as well as the lateral closing-off means (4) with respect to the window reveal, consist of sound-absorbing material. In the intermediate wall (6), a suction blower (8) may be arranged in the opening (9). The arrangement is preferably suitable for windows glazed with toughened safety glass. <IMAGE>
Patent GB-799375-A (GB)
Title: A friction clutch
IPC: F16D25/10
Filed: 1955-06-02
Abstract: 799,375. Change-speed gear; friction clutches. PAPST, H. June 2, 1955 [June 5, 1954], No. 15811/55. Class 80 (2). Toothed wheels 7, free and axially movable on a driving or driven shaft 1, and meshing wheels fast on a parallel driven or driving shaft, are frictionally and selectively clutchable thereto to vary the speed ratio, by air or liquid pressure applied to cylindrical spaces 10 formed between the wheel 7 and pistons 2 fast both axially and in rotation with the shaft, and having also friction faces 8 for clutch engagement with the adjacent face of the next smaller wheel 7. The largest wheel 7 clutches at 8 a fast end disc 2 not formed as a piston. Seal rings 11 are provided and pressure is directed selectively to the cylinders 10 by an axially slidable fitting 16 having a pressure inlet 17 and feeding through shaft passages 13. In Fig. 1 the pistons 2 are secured to the shaft by an end nut 6 clamping through spacers 4 on which run the wheels 7. In Fig. 2, not shown, the pistons 2 are secured by radial set screws, the wheels 7 run directly on the shaft, and an additional end piston is provided for actuating a brake disc.
Patent GB-474843-A (GB)
Title: Improvements in conveyors
IPC: B65G23/34
Filed: 1936-06-06
Abstract: 474,843. Endless - belt conveyers. PEARSON, T. F. June 6, 1936, No. 15863. [Class 78 (i)] A belt 1 is driven by a pair of drums 5, 6 provided with ribs 11, 12 which are so arranged that the belt becomes corrugated when passing between them. The ribs may be disposed helically about the drums and may be of semi-circular cross-section. The belts are arranged to have contact with each drum over an arc which is greater than 180‹.
Patent GB-957291-A (GB)
Title: Improvements in or relating to devices for use between the beds and rams of presses
IPC: B23D15/00
Filed: 1963-04-23
Abstract: 957,291. Sub-press mechanism. HOUDAILLE INDUSTRIES Inc. April 23, 1963 [April 23, 1962], No. 15985/63. Heading B3W. A sub-press mechanism comprises a base 11 arranged to be secured to the press bed and to support a die 24, a standard 12 which has a front slide surface 27 and a rear slide surface 28, a punch holder 13 slidably disposed against the front surface 27 and connected by a member 15 to a plate 14 slidably disposed against the rear surface 28, a cheek plate 16, 17 carried by the standard in direct engagement with the punch holder, and spring means biasing the punch holder away from the die. The spring means comprise compression springs located in pockets 42 and 43 which are each formed half in the punch-holder and half in the associated cheek plate 16, 17. There is a slug ejection shoot 26 under the die opening 25. The corners 40 and 41 of the cheek plates are cut-off at 45 degrees and form work guides.
Patent GB-252098-A (GB)
Title: Improvements relating to draughtsmen's scales
IPC: B43L7/00
Filed: 1925-06-20
Abstract: 252,098. McCarthy, F., McCarthy, F., and McCarthy, C. June 20, 1925. Scales.-Boxwood scales in which the graduated edges are constituted by strips of white celluloid are prevented from expanding and warping by bonding the ends of the scale by means of celluloid let into the ends of the boxwood strip and incorporated therewith and with the longitudinal graduated celluloid strips, the fnished scale having the appearance of a wood centre with a celluloid surround. The boxwood strip a has at each end a slot b in which is inserted a celluloid strip c extending beyond the end of the strip a. The strips a, c are then bevelled down to knife edges and celluloid strips e are cemented to those parts of the strips c extending beyond the strip a. Strips g extending over the whole length of the scale are cemented to each side of the bevelled parts of the strips a, c and to one another at their edges and are then bevelled down to a fine edge. In a modification, Fig. 8, the strip c is let into the groove b and into a, groove h of a celluloid end member i which is cemented to the strips a, g, the members g, i being then bevelled off to a fine edge.
Patent GB-529912-A (GB)
Title: Improvements in or relating to dual wheel structures for vehicles
IPC: B60B11/02
Filed: 1939-05-31
Abstract: 529,912. Brakes ; double vehicle wheels. DIFFERENTIAL WHEEL CORPORATION. May 31, 1939, No. 16020. Convention date, July 29, 1938. [Classes 103 (i) and 144 (i)] A dual wheel structure for vehicles comprises an inner and outer wheel 12, 22 independently mounted upon an axle 1. a brake drum 51 on the inner wheel with a brake shoe adapted to exert pressure on that drum, and another brake drum 71 mounted on the outer wheel ; the structure is characterized by an annular expansible brake shoe 77 within this other drum with a single gap therein in which is arranged a stop 83 fixed on the inner wheel normally to prevent relative circumferential movement of the annular shoe, and means, in the form of a plate or finger 103, adapted to be moved angularly to expand the gap to cause braking action on the drum 71, the plate or finger being automatically operated when braking pressure is applied to the inner wheel. In the construction shown, the hub 11 of the inner wheel 12 is mounted on roller bearings on the axle 1 and serves as a bearing for the hub 21 of the outer wheel 22. The wheel 12 has a portion 39 on which is mounted a support 40 for the brake drum 51. The support 40, the brake drum 51 and an apertured annular plate 96 are connected together by bolts 95 which pass through arcuate slots 93 in the web of the wheel 12. The plate 96 carries the finger 103 which extends between pieces 79, 80 fixed to the ends of the shoe 77.
Patent GB-1480104-A (GB)
Title: Composite catalyst for hydrocarbon cracking
IPC: B01J29/70
Filed: 1974-07-10
Abstract: 1480104 Cracking catalyst W R GRACE & CO 10 July 1974 16025/74 Heading B1E [Also in Divisions Cl and C5] A hydrocarbon-cracking catalyst composition comprises (a) an inorganic oxide matrix and (b) a synthetic gmelinite of silica-alumina mole ratio greater than 4.5:1 and containing hydrogen cations introduced by ion exchange with an acid, any alkali metal cation being present in an amount of less than 4% wt (as oxide on the weight of gmelinite). The matrix may be amorphous, e.g. silica-alumina hydrogel or clay, or crystalline, e.g. a further zeolite. The gmelinite may be further exchanged with metals of Groups IB to VIII. The Example describes a hydrogen gmelinite in a silicaalumina-kaolin matrix.