baber/WOPTO huggingface dataset:
Patent GB-802633-A (GB)
Title: Polymerisation of olefines
Inventor: STUART-WEBB JOHN
IPC: C08F110/06
Filed: 1955-12-14
Abstract: Propylene is polymerized in the presence of a catalyst formed by mixing an aluminium trialkyl with a lithium alkyl in a molar ratio of between 1 : 1 and 1 : 3 respectively, and then reacting the mixture with a titanium tetrahalide in a proportion of aluminium to titanium atoms between 0.75 : 1 and 2.0 : 1.  The polymerization is preferably effected with the catalyst dispersed in an inert hydrocarbon solvent, e.g. petroleum ether or methylcyclohexane, at from 0 DEG  to 150 DEG C. and from 50 to 500 p.s.i. pressure, or the propylene may be passed over the surface of the stirred medium.  The lithium alkyl may be lithium ethyl, propyl or n-butyl and the aluminium trialkyl may be aluminium trimethyl, triethyl, tripropyl, tri-n-butyl or tri-isobutyl.  The titanium tetrahalide may be the chloride or bromide.  The crystalline polypropylene product may be purified by washing with methanol and/or dilute methanolic hydrochloric acid. The Provisional Specifications specify also the polymerization of butene-1. Specification 785,314 is referred to.
Patent GB-1240150-A (GB)
Title: Improvements in or relating to the coiling of hot-rolled wire or rod
IPC: B65H54/80
Filed: 1968-07-26
Abstract: 1,240,150. Winding and reeling. MORGARD-SHAMMAR AB. 26 July, 1968 [27 July, 1967], No. 35881/68. Heading B3E. A method of coiling hot rolled wire or rod comprises guiding a leading end of the wire or rod from a finisher through a guide tube to a rotating coiler where it is caught by friction, the arrangement being such that the wire or rod forms a loop between the finisher and the coiler, the loop size being controlled by a sensing device which governs the speed of the finisher or the coiler to maintain the loop at or near a preselected size and causing relative to- and-fro motion between the guide tube and the coiler in the axial direction of the coiler so as to coil the wire or rod tightly layer by layer. Apparatus for carrying out the method comprises a loop regulator having outer and inner flanges 2, 3 and a guide tube 6 leading to a coiler. The guide tube can be moved through an angle 61 by a motor 64 and screw and nut means 62, 63 (Fig. 2). The coiler comprises a stand 21 and shaft 22 carrying a mandrel 24 comprising three segments 7, each of which is eccentrically and pivotally journalled and spring-loaded in a respective standard 71 so as to be collapsible. The segments have pegs 79 around which the wire is wound. After coiling the coil is raised by a lifting disc 27 fixed to a bar 26. The coiler also has an upper guide 8 provided with a flat disc 81 and an outer drum 28 has slots for coolant jets 91 from nozzles 9. The coiler axis can be vertical, horizontal or inclined.
Patent GB-347237-A (GB)
IPC: F16D43/284
Filed: 1929-11-25
Abstract: 347,237. Friction clutches. SKODA WORKS, PLZEN, 37, Jungmannova, Prague. Nov. 25, 1929, No. 36061. Convention date, Dec. 11, 1928. [Class 80 (ii).] In centrifugal friction clutches for allowing unloaded starting of motors and for other purposes, of the kind wherein the parts are pressed into engagement by oil or other liquid contained in the clutch and subjected to centrifugal action, the liquid-chamber is narrow at the periphery, where the liquid forms a ring during rotation of the clutch, and is abruptly enlarged or dished at the centre to form a storage reservoir. A driving-casing 2, Fig. 2, provided with a cover 4, contains one or more driving-discs 3 and one or more driven discs 7, the cover 4 being dished as shown. Packing 10 prevents leakage and mingling of the working-fluid with the lubricating oil. The clutch is applicable also to vertical shafts. The Specification as open to inspection under Sect. 91 (3) (a) contains also a form in which oil &c. is allowed to flow from a stationary pipe through the cover 4, any oil leaking past the discs 3, 7 being ejected through small holes in the end wall of the casing 2. It states also that if the casing is on the driven shaft, the driving-shaft carries a vane-wheel to rotate the oil &c. Fig. 4 (Cancelled) shows a clutch 25 for connecting a loose toothed wheel or pulley 19 to a motor-shaft 20. An oilfilled casing 22, 23, containing a piston 24, is secured to the driving-part 21, the piston acting on the clutch plates directly or through levers &c. In a disengageable form, Fig. 6 (Cancelled), a hollow disc or like container 26, having peripheral holes 29, is in driving-contact with a driving-clutch disc, but can be withdrawn and brought to rest by means acting on a collar 27, when, due to absence of centrifugal pressure, the oil &c. 28 in the driving-casing flows into it and the clutch disengages. If the shaft-functions are reversed, the part 26 is provided with vanes. This subject-matter does not appear in the Specification as accepted.
Patent GB-394695-A (GB)
Title: Improvements relating to compensators for railway signalling apparatus
IPC: B61L7/02
Filed: 1931-12-31
Abstract: 394,695. Wire compensators for railway signalling. BAKER, E. W., Assam Bengal Railway, Chittagong, India, and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Dec. 31, 1931, No. 36118. [Class 105.] A compensating device for double wire transmissions actuating railway signalling apparatus comprises a device such as a weighted lever adapted to apply tension to two or more of the double wire transmissions. Weighted levers 6 are secured to a squared spindle 4 to which are fixed pairs of bracket arms 7 .. 11, each carrying two pulleys 14 .. 18 respectively around which pass the two wires of a double transmission. Each wire also passes over two guide pulleys, such as the wire 22 over pulleys 19, 20. The bracket arms have a number of apertures 13 so that the axle pin 12 of a pulley pair can be inserted at a distance from the spindle 4 proportional to the length of the transmission wire, whereby with temperature variations, although the spindle 4 will move through an angle, all the transmissions will still be maintained under the same tension.
Patent GB-1402686-A (GB)
Title: Dividing knitted fabric being produced on a circular knitting  machine
IPC: D04B35/22
Filed: 1973-07-30
Abstract: 1402686 Knitting machines ELITEXZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 30 July 1973 [1 Aug 1972] 36180/73 Heading D1C [Also in Division F4] A knitting machine is provided with a nozzle supplied with hot air and so positioned as to slit the fabric longitudinally or transversely. The nozzle 8 carrying a heating element 20 and connected to an air line is mounted with its opening immediately below the knocking- over plane. A slit 7 is formed in the take down tube 4 above the nozzle. If the nozzle rotates with the needle cylinder a longitudinal slit is made in the fabric. If the nozzle is stationary the fabric is slit circumferentially. Power is supplied to the element 20 from a transformer via collector rings at the base of the tube 6; an on-off switch is controlled from the pattern drum. The stream of air is supplied from a fan via a distributor, which is positioned to suck air down through the nozzle when the element is not heated.
Patent GB-338382-A (GB)
Title: Improvements in typewriting machines
IPC: B41J11/48
Filed: 1929-11-27
Abstract: 338,382. Royal Typewriter Co., Inc., (Assignees of Handley, G. F.). Dec. 11, 1928, [Convention date]. Line-spacing mechanism. - The line-spacing lever is normally coupled to the mechanism by a latch which is released during movement of the line-spacing lever. To facilitate condensedbilling, paper-feed rollers may be released by the line-spacing lever after the latch is released. In the mechanism shown in Figs. 1, 2, and 5, a line-spacing lever 34 and an arm 35 carrying a pawl 37 are mounted on the platen axle 6 and are normally coupled by means of a latch 41 which is pivoted on the line-spacing lever and has a recess engaging a pin 45 on the arm. The pawl co-operates with a ratchet-wheel 38 on the platen axle. A pin 49 in the path of the latch releases the latch during the line-spacing movement. Line-spacing is regulated by a pawl-shield 51, Fig. 5, which is adjustably mounted on pins 54 on a bracket 28 and has teeth co-operating with a catch 56. Sheet-feeding arrangements.- Feed-rollers 7, 19, Figs. 1 and 2, are carried by rocking arms engaging flats on a shaft 14 which is provided with a sector 27 gearing with a sector 26 on a releasing-lever 24. The sector 27 is connected by a bar 62 to a sector 63 gearing with a sector 65 which is provided with a projection 67 arranged in the path of shoulders 60, 61 on the line-spacing lever 34. A bill 7 and a record sheet E are placed on shelves 74, 73 and, after operation of the lever 24, are passed round the platen B, the record sheet being passed also under feed-rollers 68 carried by a bail 70. On operation of the line-spacing lever, the bill and the record sheet are line-spaced, and the feedrollers 7, 19 are subsequently released to permit of removal of the bill. After insertion of another bill, the line-spacing lever is returned to restore the feed-rollers 7, 19.
Patent GB-323620-A (GB)
Title: Improvements in sound producing apparatus
IPC: H04R7/14
Filed: 1928-12-10
Abstract: 323,620. Benjamin, M. Dec. 10, 1928. Sound-box casings.-A diaphragm type soundbox is provided with means to separate the high and low frequency sound waves and subsequently unite them. The diaphragm 5 emits highfrequency sound waves from its centre, which travel up the central tube 2 while the low frequency waves emitted from the outer part travel up independent tubes 6 which subsequently open into the central tube. The central tube may be secured to the outer casing 1 by a rubber packing 4. In a modification, the central tubes 6 are replaced by a single cone surrounding a central rubber or like tube provided with intercommunicating holes.
Patent GB-1006341-A (GB)
Title: Method and apparatus for the manufacture of lattice frame structures
IPC: E04C5/065
Filed: 1962-09-26
Abstract: 1,006,341. Lattice girders. DAVUM. Sept. 26, 1962 [Oct. 27, 1961], No. 36546/62. Heading E1K. [Also in Division B3] The metal framework for a reinforced concrete girder comprises a V- or U-sectioned strip 8 connected by a bent steel wire 6 to steel wires 4 and 5 which may be smooth, notched or twisted.
Patent GB-845008-A (GB)
Title: Control circuits for dishwashing apparatus
IPC: A47L15/42
Filed: 1956-11-29
Abstract: 845,008. Electro-magnetic relays; pressureactuated switches; thermal switches. GENERAL ELECTRIC CO. Nov. 29, 1956 [Nov. 29, 1955], No. 36562/56. Class 38 (5). [Also in Group XXIII] An automatic dish-washing machine (see Group XXIII) includes a solenoid-operated fluid-pressure valve combined with a relay, and a combined temperature- and pressure-sensitive switch unit. The solenoid (see Fig. 4) comprises a valve member 126 biased in the closed position and opened by the solenoid action of the coil on a plunger 129. An armature 133 is also attracted by the solenoid to make relay contacts. The temperature- and pressure-sensitive switch unit 630 (Fig. 6) comprises a box 631 with pressure-sensitive bellows 632, and contact bridge 634 and a thermal element 637 connected via a capillary tube 638 to a further bellows 639, and contact bridge 640. Specifications 144,767 and 663,586 are referred to.
Patent GB-321859-A (GB)
Title: Improvements in catches for cabinet work
IPC: E05C1/10
Filed: 1928-12-12
Abstract: 321,859. Hopkins, C. Y., and Cartland & Son, Ltd., J. Dec. 12, 1928. Latches, sliding. - The latchbolt b has a recess b<2> to receive a spring d and a pin c, a shouldered end c<1> engaging a hole a<2> to the casing a. The bolt is shouldered to engage the hole a' in the casing, and has a thumb piece b<3>.
Patent GB-1111864-A (GB)
Title: Improvements in and relating to fuel cells
Inventor: DARLING ALAN SYDNEY
IPC: H01M8/06
Filed: 1965-08-26
Abstract: 1,111,864. Hydrogen/oxygen fuel cells. JOHNSON, MATTHEY & CO. Ltd. 9 Aug., 1966 [26 Aug., 1965], No. 36674/65. Heading H1B. A hydrogen/oxygen fuel cell having a hydrogen permeable cathode in contact with electrolyte on one of its faces is supplied with hydrogen by decomposing ammonia at the other face of the electrode. In the fuel cell of Fig. 1 ammonia supplied through tube 9 is decomposed by granular, porous catalyst material 10 carried in the tubular cathode 3 which is surrounded by electrolyte 5 carried in the tubular anode 2 concentric with cathode 3.
Patent GB-916588-A (GB)
Title: Improvements in or relating to devices for arresting aircraft on runways
IPC: B64F1/02
Filed: 1960-10-26
Abstract: 916,588. Aircraft arresting apparatus. BROWN (S.E.N.D.) Ltd., JOHN, and ROBERTSON, A. A. C. Oct. 26, 1961 [Oct. 26, 1960], No. 36792/60. Class 4. An aircraft arresting device has trough for housing a collapsed net, the lid of the trough being wholly below the mouth of the trough when open and being substantially flush with the runway when closed. The trough comprises several sections having walls 10-13, Figs 1 and 2, bolted together at flanges 14, walls 11, 12 forming the housing for the net. Plates 20 bolted to walls 17, 18 have drilled bosses 21 which with bosses 36 on lid 33 form a hinge for the lid which comprises several sections. Brackets 8 on lid 33 are connected to a linkage 72-76, a pin 77 on a connector 7 of rods 78, 6 being situated close to link arm 76, the rods 78, 6 of each casing being connected together. Lid supporting members 30, 31, 32 projecting through wall 24, are actuated by linkages 48-51 and 58-69 by connected rods 41, 42; springs 56 only one shown acting between fixed and sliding collars on rods 41, 42 bias the members 30, 31, 32 to the supporting position. A plate 25 bolted to each section covers the members 30-32 and their actuating mechanism. An end section 82a, 82b, Fig. 3, has an electric reciprocating motor 97 connected by rod 96, lever 85, pin and slot connections 91, 92 and 87,88, and rods 94, 90 to rods 78, 41 respectively of casings 10-13. A rubber lid 121 covers a compartment for the end of the net. Conduits 99, 100 connect motor 97 to a control switch, and a distributer 129 supplies heating cables 130 Figs. 1, 2. A lead 125 is connected to a switch 126 operated when the end lid 33 opens to actuate an indicator, the lids 33 having overlapping lugs 124, Fig. 6, so that the lids open in succession with the farthest from motor 96 opening first. The other end section 107, Fig. 6, has rods 112, 113 connected to rods 42, 6 respectively and connected together by a lever 109. In operation, to open the lids, motor 97 rotates lever 85 clockwise, Fig. 3, to pull rods 94, 78, 6 which through lever 109, Fig. 6, pulls rods 112, 42, 41 to retract support members 30, 31, 32. The pins 77 in connectors 7 then engage arms 76 to lower the lids into recesses in walls 12. On reversal of motor 97, the members 30, 31, 32 are projected into the trough and the lids are riased manually by levers inserted in sockets in the lids.
Patent GB-1511679-A (GB)
Title: Method of manufacturing an object of cross-linked polymer and compositions for use in the method
IPC: B29C48/05
Filed: 1975-09-08
Abstract: 1511679 Controlling cross-linking ASEA AB 8 Sept 1975 [9 Sept 1974 (2) 9 June 1975 (2)] 36808/75 Heading B1X [Also in Divisions B5 and C3] In the production of moulded objects by cross-linking polymers in the presence of a peroxide, the cross-linking is monitored by including in the polymer a substance which changes colour during the crosslinking, e.g. a dye. The substance may be dispersed throughout the polymer or present only in limited areas thereof, e.g. as a strip. Many suitable dyes are mentioned and the composition may also include a colouring agent which does not change colour during the cross-linking. The degree of cross-linking may be determined either visually or by an instrument, and cross-linking conditions adjusted as desired. In Examples the polymer is polyethylene, EPDM or a polychloroprene/ SBR mixture.
Patent GB-1040289-A (GB)
Title: Polyurethane elastomers
Inventor: BRITAIN J W
IPC: C08G18/82
Filed: 1963-09-19
Abstract: Shaped, non-porous elastomeric polyurethanes prepared by reacting a hydroxyl-containing compound and a chain extending agent containing amino groups and/or hydroxyl groups with an organic polyisocyanate and shaping the reaction product are post-cured by heating in the substantial absence of oxygen. The heating may be performed in an atmosphere of nitrogen, argon, xenon, hydrazine, hydrogen or helium or in a vacuum.  The hydroxyl containing compound may be a polyester, polyether, polythioether, polyesteramide or polyacetal. Many conventional polyisocyanates are specified.  In an Example (1) butanediol and 4,41-diphenylmethane diisocyanate were added separately to polyethylene adipate, cast into a mould and chopped up. The chopped particles were injection moulded and cured in a vacuum oven at 110 DEG  C. for 16 hours.
Patent GB-893471-A (GB)
Title: Process for dyeing or printing fibrous materials of aromatic polyesters
IPC: C09B1/26
Filed: 1960-10-27
Abstract: Aromatic polyester fibres are dyed or printed with a 1-amino-2-cyano-4-alkylamino-, 1-amino-2 -cyano-4-cycloalkylamino- or 1-amino-2 -cyano-phenylamino-anthraquinone dyestuff which is free from acid solubilising groups.  The alkyl residue may be substituted with a cyano group and the phenyl residue with a halogen atom or an alkyl, alkoxy or hydroxyl group.  Dyeing is effected from an aqueous dispersion containing dispersing and wetting agents, at temperatures up to or above 100 DEG C. and, if desired, in the presence of carriers such as benzoic or salicylic acids, o- or p-hydroxy-diphenyl, chloro-, dichloro-or trichloro-benzene, phenyl methyl carbinol or diphenyl.  Example 12 describes a printing operation.  The dyes are obtained by heating the appropriate 1-amino-4-alkylamino- (or 4-cycloalkylamino- or 4-phenylamino)-anthraquinone-2-sulphonic acid in water with an alkali metal cyanide.
Patent GB-626986-A (GB)
Title: Improvements in hopper fed furnaces
IPC: F23K3/06
Filed: 1946-12-16
Abstract: 626,986. Boiler furnaces. JANITOR BOILERS, Ltd., and RIDGLEY, G. A. Dec. 16, 1946, No. 37040. [Class 51 (i)] In a hopper-fed boiler furnace wherein the hopper 2 has openings 8 for the admission of ventilating air, a water way 10 carries a plate 11 defining the fuel outlet and having orifices for the passage of said air to the secondary combustion space, said orifices being protected by a shield plate 13. In a modification Figs. 4 and 5 (not shown) the air escape orifices discharge into ducts defined by side water walls of the boiler and plates forming a narrowing fuel discharge duct which consolidates the fuel at the discharge point.
Patent GB-1163301-A (GB)
Title: Improvements in or relating to Supporting Tubular Walls of a Vapour Generator
Inventor: BAGLEY ROY
IPC: F22B37/66
Filed: 1965-08-27
Abstract: 1,163,301. Once-through vapour-generators; tube walls. BABCOCK & WILCOX Ltd. 26 Aug., 1966 [27 Aug., 1965], No. 37040/65. Headings F4A and F4B. A once-through forced-flow vapour generator includes a furnace chamber into which front and rear wall burners 3 fire, and from which an upright gas pass 2 extends, leading into a lateral gas pass 7 containing reheater tubes 7a, and a downpass 9 containing economizer tubes 9a. The gas pass 2 up to the level of the lateral pass 7, is lined by parallel finned tubes 21, gas tightly welded together to form a membrane wall. At the level of lateral pass 7 in the front and side walls, the inclined tubes 21 each connect to a vertical tube which are welded side by side in groups 10, and which discharge into upper headers 14. The headers 14 discharge through conduits 14a to a central collector (not shown) which feeds a second pass of larger diameter vertical wall tubes 11 disposed in groups between the groups 10. Vertical external support straps 12 extending parallel to the vertical tube groups 10, support the front and side walls from spring mountings 13, some of which through beams 16 further support U-shaped superheater tube platens 15. In the rear wall the inclined tubes 21 connect to upright tubes which in turn discharge into headers 33. The vertical support straps 12 are attached to the inclined tubular walls 21 at differing levels P, Q. To attach the straps to the walls, blocks 31 with rear surfaces contoured to the tubes 21, are welded thereto, and the enlarged heads 12a of the straps 12 are held in abutment against these blocks by overlapping lugs 33 welded to the blocks. Alternatively (Fig. 4, not shown), a block having tubular conduits through it may be incorporated flush within the tubular wall, the enlarged strap head engaging against the lower edge of the block and the strap extending up along a recess in the outer surface of the block. Lugs welded to the block then overlie the strap.
Patent GB-821825-A (GB)
Title: Improvements relating to building construction
Inventor: VINCENT VINCENT ESME
IPC: E04B7/02
Filed: 1954-12-23
Abstract: 821,825. Roofs. BOXGROVE HOUSES Ltd. Dec. 20, 1955 [Dec. 23, 1954], No. 37198/54. Class 20(4) The A-shaped roof frames of a building are built up p by fixing spaced transverse floor joists 11 spanning the walls 10 of the ground or an upper floor, erecting a pair of spaced uprights 12 on each joist 11 securing a longitudinal 13 along the tops of each row of uprights 12, and fixing cross pieces 14 spanning the longitudinals 13 and adding sloping rafters 16 secured to a ridge board 17, and to the ends of the joists 11 and intermediately secured to the cross pieces 14. The uprights 12 and the ceiling members 14 are covered with heat insulant and boards to form the central upper attic room. Intermediate frames 13a-15, may be added. The side spaces can be boarded in to provide recesses R, Fig. 4, and cupboards C. Access to the room from below is provided by shortening the joists 11 and supporting their cut ends by a known transverse trimmer piece 20, Fig. 6, (not shown), to provide a space at the top of a staircase. The timbers may be pre-finished to suit the decoration.
Patent GB-861346-A (GB)
Title: Dielectric ceramic compositions and the method of production thereof
Inventor: PLANER GEORGE VICTOR
Filed: 1957-11-29
Abstract: An intergranular barrier layer ceramic dielectric material comprises conductive granules of a composition of either alkaline earth titanates; or of one or more such compounds with at least one of the group alkaline earth stannates, alkaline earth zirconates, and tantalum oxide; or of strontium titanate, bismuth oxide and titania, the granules being separated from one another by a non-conductive oxidized barrier layer.  The material is made by compacting powdered ingredients, sintering and reducing in an atmosphere substantially free from oxidising agents, thereby producing a porous conductive ceramic, followed by oxidising wholly in an oxidising atmosphere. The powdered ingredients are obtained by milling the starting material together, firing in air, and crushing the product, this product being substantially shaped with the addition of a temporary binder.
Patent GB-1174750-A (GB)
Title: Apparatus and Method for Drawing Stock
Inventor: DAVIS ROBERT NELSON
IPC: B21C1/28
Filed: 1968-08-05
Abstract: 1,174,750. Drawing. ALCAN RESEARCH & DEVELOPMENT Ltd. 5 Aug., 1968 [7 Aug., 1967], No.37337/68. Heading B3P.  A drawing carriage 10 has a rigid abutment 25 having a tapering recess 27 which receives and deforms the forward end of the drawn workpiece to absorb the released energy when the workpiece suddenly moves forward due to its trailing end leaving the die 14. The forward end of the workpiece, e.g. aluminium tube or rod, is automatically freed from the gripping jaws 20 of the chain driven carriage 10 as the workpiece leaves the die and is accelerated forward to be deformed into a conoid tapering shape by the conical recess 27. The recess portion 27a has a cone included angle of 30 degrees to receive small diameter workpieces whilst the portion 27b has an included angle of 40-45 degrees to receive larger diameter workpieces.