baber/WOPTO huggingface dataset:
Patent GB-838963-A (GB)
Title: Improvements in or relating to copolymers
IPC: C08K5/14
Filed: 1958-05-15
Abstract: Copolymers of ethylene, and up to 70% of propylene which may also contain a minor proportion of another unsaturated hydrocarbon are cross-linked by heating the copolymer in the presence of from 0.1 to 20% by weight of the copolymer, of a peroxide of the formula <FORM:0838963/IV (a)/1> where R1 and R6 are aryl groups and R2, R3, R4 and R5 are hydrogen or an alkyl group of less than 4 carbon atoms. The heating is preferably effected within the range of 132 DEG  to 190 DEG  C.  The Specification contains an extensive list of peroxides in accordance with the above formula. p  Preferred peroxides are bis (alpha, alpha-dimethylbenzyl) peroxide, bis (alpha, alpha-dimethyl - p - isopropyl - benzyl) peroxide, bis alpha, alpha - dimethyl - p - methylbenzyl) peroxide, and bis (alpha-isopropylbenzyl) peroxide.  The third ingredient of the copolymer may be allo-ocimene, vinyl cyclohexane, dipentene, myrcene or isoprene.  The polymers may be made using "Zeigler-type" or supported metal oxide type catalysts e.g. in accordance with the processes described in Specifications 748,583 or 804,641.  The crosslinking may be effected throughout the whole polymer mass or confined as in the case of films to a surface cross-linking.  Wires or filamentary materials may be coated with the cross-linked polymer.
Patent GB-567512-A (GB)
Title: Improved mechanism for the remote actuation of a diaphragm, or the equivalent at predetermined time intervals
IPC: F15B11/20
Filed: 1943-09-23
Abstract: 567,512. Hydraulic or pneumatic transmission of power. DEMPSTER, Ltd., R. & J., SHEERAN, A. J., and SAVAGE, W. A. Sept. 23, 1943, No. 15644. [Classes 69 (ii) and 135] [Also in Group XXVIII] A diaphragm or like pressure-sensitive device 14 actuating a valve &c., and operated hydraulically or pneumatically at predetermined time intervals, is controlled by two drums 17, 18 rotated by a constant speed shaft and controlling supply and exhaust of pressure fluid, respectively. The drums are enclosed in housings connected to the pressure supply and exhaust respectively, and are grooved at 29 to co-operate with ported valve members 25, pressed by springs 28 into contact with the drums and connected by conduits 21, 23 with the devices 14. A number of such devices may be operated in sequence to open or close valves 10, 11, 12 controlling flow of gas through an adsorption filter A or B.
Patent GB-814543-A (GB)
Title: Improvements relating to the manufacture of bricks, tiles and the like
IPC: B28B7/44
Filed: 1956-05-22
Abstract: 814,543. Compression-moulding powdered materials. WILKINSON, J. May 20, 1957 [May 22, 1956], No. 15721/56. Class 87(2). A brick or tile press, comprising a ram 7 coacting with a mould assembly and a relatively movable sealing head 9 adapted for sealing engagement with the mould assembly, has valve means adapted not only to effect the connection of air extraction means to the upper part but also to the lower part of powdered material in the mould when the mould is enclosed by the sealing head. The mould assembly comprises sections 4a, 4b, 4c bolted together. Interconnecting air passages B and C are formed in the base and walls of the mould, the openings to the latter being shielded by a shroud 4e. A port 13a in the housing of a poppet valve 12 is connected to vacuum and a valve 14 controls an opening to atmosphere, both valves being carried on the sealing head 9 and operated electrically, in timed sequence, or mechanically from the movements of the ram 7. A bottom ejecting plunger 5 has a plate 6 which fits in the mould cavity, leaving an air gap at A. The ram 7 descends and the sealing head 9 covers the top of the mould, rings 10 and 11 providing airtight seals ; as the pressing member 8 enters the mould the valve 12 opens and, during compression, air is drawn from the top of the powder and, through the gap A and passages B, C, from the bottom also. After compression, the valve 12 closes and the valve 14 opens to reestablish atmospheric pressure to the mould cavity, the ram then re-ascending and the ejector 5, 6 rising to expel the article.
Patent GB-601693-A (GB)
Title: Rivet setting tool
IPC: B21J15/02
Filed: 1945-06-20
Abstract: 601,693. Riveting. DEHN, F. B. (North American Aviation, Inc.). June 20, 1945, No. 15732. [Class 83 (iv)] Sets and snaps.-A tool for setting a malleable collar 18 in an annular groove in the end of a rivet 10, the groove having a frusto-conical base 20 connected by a curved surface to a reversely disposed frusto-conical top portion 21, comprises a frusto-conically shaped interior surface 22, the angularity of which with respect to the axis of the rivet is more acute than that of the base 20 of the groove so that the two conical surfaces of the set collar are in outwardly diverging relation to each other. In operation, the collar 18 is engaged by the conical mouth 22 of the tool 19 which is pushed towards the work 13, 14 thereby forcing the collar into the groove, any excess metal being sheared from the end of the collar against a shearing edge 24 formed on the rivet and discharged from the tool through an opening 25. Specification 567,446 is referred to.
Patent GB-707751-A (GB)
Title: A tool for making joints in pipes and tubing
IPC: B21D39/04
Filed: 1951-07-03
Abstract: 707,751. Jointing by rolling. HARDING, E., and HARDING. L. July 2, 1952 [July 3, 1951], No. 15738/51. Class 83 (4) Pipes 6, 7, Fig. 3, to be joined are assembled in telescoped relationship and are indented by a ring of rollers 9 with annular flanges 13, 14. The rollers 9 are assembled in a link chain 5, Fig. 2, attached at one end to a handle 1 and looped round the pipes and engaged at one of the links by a claw 8 which is adjustable along the handle for tightening the chain. An additional roll 15 attached to the end of the handle 1 completes the ring of rolls. The claw 8 is adjusted by a screwed rod 20 keyed in the handle by a screw 28 and rotated by a lever 21 which is located in operative and inoperative positions by a spring loaded ball 26. An adjustable stop 29 on the handle 1 limits the movement of the claw 8 to prevent excessive deformation of the pipes. Specification 648,652 is referred to.
Patent GB-272563-A (GB)
Title: Anode for electrolytic purposes and method of producing the same
IPC: C25B11/00
Filed: 1927-06-13
Abstract: 272,563. Kelsen, E. June 11, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Electrodes; iron and other metals, obtaining.- Anodes for use in electrodeposition consist of metal, particularly iron, chips of any size or shape compressed hydraulically into plates:
Patent GB-1392790-A (GB)
Title: Attachment device
IPC: F16B12/42
Filed: 1973-04-03
Abstract: 1392790 Clamps; hook fastenings SHELL & BP SERVICE CO (PTY) Ltd 3 April 1973 [5 April 1972] 15897/73 Headings E2A and E2B A device for attaching a furniture component 28 to a tubular frame 14 comprises elements 10, 38 having concave cavities 12, 40 and interfitting arcuate formations 18, 20 and 42, 44 which permit the elements to be moved longitudinally with respect to each other to surround a frame portion and releasable means, such as a screw 46, to lock the elements against longitudinal movement relatively to each other and to the frame portion. The element 10 has a flat surface 22 for engagement with a surface of the furniture component and hole 24 in that surface for reception of a member, i.e. a screw, to secure the element to the component. As shown, the element 10 has a hook member 32, provided with holes 34, for engagement with a hook member 36 on a further furniture component 39.
Patent GB-1458750-A (GB)
Title: Apparatus for performing catalytic endothermic reactions
IPC: C10G9/00
Filed: 1974-04-10
Abstract: 1458750 Protection from overheating FRIEDRICH UHDE GmbH 10 April 1974 [10 April 1973] 15905/74 Headings B1F and B1X Downward flowing reaotion gas is conveyed from catalyst 1 beyond inner tube sheet 6 into heat exchange tube 7 by tube 8 to give the gas time to cool before it contacts tube sheet 6. Insulation 9 and 10 and the length of the catalyst free part of tube 2 also help to protect weld 15 and tube Sheet 6 from excess heat. The apparatus may be used for steam reforming of hydrocarbons at >5 atm. g.
Patent GB-950355-A (GB)
Title: Blades for fluid flow machines
Inventor: POWELL FREDERICK BOWEN
IPC: F01D5/18
Filed: 1961-05-02
Abstract: 950,355. Making turbine blades. ROLLSROYCE Ltd. April 27, 1962 [May 2, 1961], No. 15925/61. Heading B3A. [Also in Division F1] A blade for a fluid flow machine such as a turbine has passages, conduits and drillings formed within it. The blade may be a close forging which is subsequently machined by an electrolytic or spark process and may be formed in two halves which abut at the midchord line and are secured together by brazing or electron beam welding. Tho passages, conduits and drillings may be formed by spark machining or by an electrolytic process.
Patent GB-756740-A (GB)
Title: Improvements in or relating to conveyor mechanisms for use in sterilising or preserving apparatus
Inventor: JONES THOMAS MARSDEN
IPC: A23L3/04
Filed: 1953-06-10
Abstract: 756,740. Endless-belt or chain conveyers and elevators. MITCHELL ENGINEERING, Ltd., and WEBSTER & CO., Ltd., R. W. Aug. 18, 1954 [June 10, 1953], No. 15959/53. Class 78 (1). A conveyer 6, Fig. 2, for carrying rows of containers 12 through sterilizing or preserving apparatus 1 comprises a pair of endless chains 10, 11, Fig. 3, between which carrier members 7 in the form of I-section bars are mounted in parallel spaced relationship, the flanges 8, 9 of the bars being of such width that when the chains flex, the distance between the flanges of adjacent bars increases sufficiently to permit the insertion or removal of the containers. The chains are arranged in a guide 13, Fig. 4, which is so shaped that the conveyer follows a curved path opposite collecting devices 16, 45 and feedfeeding devices 15, 44. These devices are endless-belt conveyers disposed in shallow troughs. Each conveyer has a stop 34, Fig. 6, consisting of a bell-crank lever which is pivoted at 35. One arm of the lever has a head 37 and a spring- loaded telescopic arm 38 which bears against the side 39 of the conveyer casing. The other arm 40 carries an adjustable stop 41 which projects through a slot in the guide 13 into the path of the rollers 42 of the conveyer chain 10. The stop 41 is so set and the speeds of the conveyers so adjusted that a complete row of containers is assembled on each conveyer 15, 44 opposite to the open jaws of the conveyer 6, into which they roll, between successive movements of the stops 34. The carriers 7 may be mounted only on one side of the conveyer 6.
Patent GB-1337635-A (GB)
Title: Method for polymerizing alpha olefins
IPC: C08F2/00
Filed: 1971-05-20
Abstract: 1337635 Polymerizing α-olefins DOW CHEMICAL CO 20 May 1971 [22 May 1970] 15964/71 Heading C3P Polymerization or copolymerization of α-olefins in an inert organic diluent is carried out by means of two catalyst compositions in combination, (A) the reaction product of a compound of a metal of the first transition series with a reducing compound, and (B) the reaction product of a zirconium compound with a reducing compound, the molar ratio of zirconium to the other transition metal in the combined catalyst being 0À1 : 1 to 2 : 1 and the temperature and pressure being such that the polymer remains in solution in the diluent. The reducing compounds both have the formula MR n X m  where M is a metal of Group Ia, IIa or IIIb or zinc, R is hydrogen or C 1 -C 8  alkyl, X is halogen, n is 1, 2, 3 or, in (A) only, 4 and m is 0, 1 or 2, m+n being the valency of M. Examples describe the polymerization of ethylene in iso-octane by means of a catalyst formed by combining a ZrCl 4 /AlEt 3  composition with a VOCl 3 /AlEt 3  or TiCl 4 /AlE@ 3  composition in the presence of the monomer. The resulting polymers have a broad molecular weight distribution.
Patent GB-541539-A (GB)
Title: Improvements in and relating to the preparation of artificial dispersions of rubber and the like
IPC: C08J3/03
Filed: 1940-11-01
Abstract: 541,539. Rubber dispersions. BRITISH RUBBER PRODUCERS' RESEARCH ASSOCIATION, and BLOW, C. M. Nov. 1, 1940, No. 15985. [Class 1 (i)] Dispersions of rubber or rubber-like materials are prepared by milling with rubber cholesterols such as wool wax, and emulsifying the soft mix. Bentonate or other emulsifying agent, and vulcanizing ingredients may be milled with the mix. A'cationic soap such as octadecyl trimethyl ammonium bromide or an anionic soap such as cetyl sodium sulphate may also be milled into the mix to obtain a positively or negatively charged dispersion. Specification 538,505 is referred to.
Patent GB-875269-A (GB)
Title: Automatic disconnect apparatus in a telephone answering device
Inventor: ZIMMERMAN JOSEPH JAMES
IPC: H04M1/654
Filed: 1958-05-19
Abstract: 875,269. Sub-station equipment. GENERAL TELEPHONE LABORATORIES Inc. May 19, 1958, No. 16050/58. Class 40 (4). A telephone answering apparatus is disconnected and reset to stand-by on receipt of dial tone at the sub-station thereby freeing the line and apparatus as soon as a connected subscriber hangs up. Incoming signals are picked up by an inductive attachment 3, Fig. 1, on the earpiece of the telephone set and energize a relay 11 to connect up a synchronous motor 13 which drives a cam 20 towards a switch 33 from a stop 26. Should the motor 13 be disconnected before cam 20 reaches the switch 33 a coil spring biasing the cam towards stop 26 returns the cam back to the stop. Normal speech therefore does not drive motor 13 very far as it is subject to breaks and only intermittently energizes relay 11. Dial tone, however, energizes relay 11 continuously for sufficient time to operate switch 33 which causes energization of a solenoid 34 to actuate the reject mechanism of a phonograph 1. In place of the synchronous motor the slow-acting relay of Fig. 3 may be used in which an iron core 45 in an oil-filled capsule 44 is drawn slowly into the coil 42 when this is energized and gradually increases the magnetic field of the coil until it becomes sufficient to operate armature 46.
Patent GB-359989-A (GB)
Title: Improvements in the manufacture and production of sulphates from water-soluble sulphites or bisulphites
IPC: C01C1/246
Filed: 1930-05-24
Abstract: Alkali metal or ammonium sulphites or bisulphites are converted to thiosulphates by means of sulphur or alkali metal or ammonium polysulphides, the thiosulphates are converted to polythionates by means of sulphur dioxide, and the polythionates heated to obtain sulphates and sulphur, if necessary after addition of further sulphite or bisulphite.  The sulphur obtained may be re-used in the process, and the sulphur dioxide necessary be obtained by burning a part of the sulphur, or when bisulphites are present in the initial material, be in part that recovered in the first step of the process. Sulphur may be recovered from the final solutions by heating them under pressure until the sulphur liquefies. Examples refer to the use in the process of ammonium sulphite with or without bisulphite, and of potassium bisulphite or sulphite.  In the latter case the addition of ammonium sulphite before carrying out the final step of the process gives a mixture of ammonium and potassium sulphates which may be used as a fertilizer.  Specification 5838/11, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.  According to the Provisional Specification any substance containing or supplying sulphur may be used in the first step of the process.
Patent GB-1310716-A (GB)
Title: Cine projector
IPC: G03B19/18
Filed: 1970-04-06
Abstract: 1310716 Intermittent film feed mechanisms AGFA-GEVAERT AG 6 April 1970 [5 April 1969] 16119/70 Heading G2E In a cine projector the pull-down motion of feed claw 5 is provided by the engagement of follower block 6 with either of cams 8, 9 which are selectively slidable on shaft 1, one cam providing forward film feed and the other cam providing reverse feed, the in-and-out motion of claw 5 being provided by the engagement of block 6 with face cam 4, the maxima and minima of reverse feed cam 9 being radially displaced to allow for the longitudinal clearance between claw 5 and the transverse edge of each film perforation which would produce a framing shift on reversing the feed. Cams 8, 9 are mounted on a sleeve 7 slidable on shaft 1 against spring 21 in response to displacement of push-rod 12 by a member 13 shiftable on shaft 1 by lever 14 held by an overcentre spring system. Rod 12 passes through a hole in a sleeve 2 fixed on shaft 1 and carrying face-cam 4, to make a driving connection with a further hole in flange 7a of sleeve 7. Shutter 20 is carried by a sleeve 18 fixed on shaft 1.
Patent GB-1045117-A (GB)
Title: Improvements relating to print wire lubrication systems
IPC: B41J2/265
Filed: 1965-04-21
Abstract: 1,045,117. Selective printers. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 21, 1965 [May 29, 1964], No. 16746/65. Heading B6F. The print wires of a wire printer are automatically forced lubricated by the impression action of the wires. Each wire 14 in its flexible sheath 14a, terminates in a drive slug 32 provided with a cylinder 66 of sufficient size to slidingly receive a plastic sleeve 14b surrounding the end of the flexible sheath 14a. The cylinder is kept filled with oil from a recess 68 in the slug which is replenished from an oil reservoir 30, Fig. 2 (not shown), supplied by a tube 28, Fig. 1 (not shown), into which the oil is supplied by a pump 60 driven by a shaft 19. The shaft 19 also drives the slugs 32 to effect selection or impression through a series of separate electro-adhesive rotors 18 and individual clutch bands 52, when the required signals are directed thereto by a control device 20. Operation of the various electro-adhesive clutches drives an associated bar 36 upwardly, advances the slug 32 and hence its associated print wire to effect impression. The impression action may be applied mechanically after electro-adhesive selection. Letter-spacing of print-head.-The print-head 15 is advanced by a tape 25 passing over a pair of continuously rotating drive members 23, 24. The latter is a clockwise electro-adhesive clutch so that when a letter-space signal is received the print-head 15 is advanced. Drive member 23 rotates in a counter-clockwise direction and is used to selectively stop the forward motion of the print-head by the application of an equalizing force. Carriage-return.-The drive member 23 effects carriage return when operated alone.
Patent GB-883275-A (GB)
Title: Improvements in and relating to thermoplastic compositions
Inventor: BARFORD JOHN COWPER
IPC: C08J3/28
Filed: 1958-05-20
Abstract: A blend comprising a rubbery copolymer and a thermoplastic hard and normally inelastic synthetic resin in which the resin constitutes from 25 to 90% by weight of the blend, is subjected to ionizing radiation so as to effect crosslinking and/or grafting of the rubber-resin constituents.  The rubbery copolymer may be a copolymer of butadiene with acrylonitrile, styrene or an acrylate or a terpolymer of butadiene with any two of these and the inelastic resin may be a copolymer of styrene or a methyl styrene with acrylontrile or an acrylate, or a graft copolymer of the monomers of these resins on polybutadiene.  The irradiation may be carried out with accelerated electrons, g -rays, b -rays, thermal neutrons, accelerated deuterons, accelerated protons or X-rays.  Specification 805,897 is referred to.
Patent GB-470480-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: H01J29/24
Filed: 1936-02-13
Abstract: 470,480. Luminescent screens. BAIRD TELEVISION, Ltd., and BAIRD, J. L. Feb. 13, 1936, No. 16259/37. Divided out of 470,347. [Group XL]. Drawings to Specification. [Class 98 (i)] [Also in Group XL] In a cathode-ray tube the luminescent screen comprises a roll of pliable material mounted upon rollers which can be rotated, for example by a magnet, so that a used portion of the screen can be replaced by an unused portion.
Patent GB-1312854-A (GB)
Title: Non-linear block copolymer and its preparation
IPC: C08G81/02
Filed: 1971-05-21
Abstract: 1312854 Non-linear asymmetric block copolymers SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 21 May 1971 [22 May 1970] 16263/71 Heading C3P A block copolymer has the formula where C is a residue of a multifunctional coupling agent, A is a non-elastomeric polymer block, B is an elastomeric polymer block, D is further polymer block which is non-identical with the unit (A-B-)-, x is an integer of at least three, and n is 10-65% of x. It is obtained by forming a mixture of living AB and D polymers and coupling with a polyfunctional coupling agent. The copolymer may be hydrogenated using mild conditions and a Zeigler-type catalyst. In the example a copolymer of formula is obtained by polymerizing styrene in the presence of sec-butyl lithium in cyclohexane, adding a butadiene, cyclohexane, isopentane, sec-butyl lithium mixture and continuing polymerization to form block- and homo-polymer chains in a 3 : 1 ratio, and finally coupling with dimethyl adipate.
Patent GB-1056644-A (GB)
Title: Graft polymers of vinyl chloride
Inventor: HARDT DIETRICH
IPC: C08F2/02
Filed: 1965-04-15
Abstract: Graft copolymers are made by polymerizing a mixture of vinyl chloride and a monoethylenic acid or derivative thereof or an organic vinyl ester upon a partially hydrolyzed copolymer of ethylene and a vinyl carboxylate.  Suitable comonomers for use with vinyl chloride are acrylic, methacrylic, fumaric and maleic acids and their esters with monohydric and dihydric alcohols. Vinyl esters specified are vinyl acetate, propionate, butyrate and benzoate and monovinyl oxalate. Grafting is preferably effected by polymerizing in aqueous suspension a solution of the partially hydrolyzed copolymer in the vinyl chloride monomer mixture. Specified polymerization catalysts and lauroyl and benzoyl peroxides and azodiisobutyronitrile. The resulting graft copolymers may be cross-linked by reaction through their hydroxyl and carboxyl groups, if the latter are present, suitable cross-linking agents being polyisocyanates, N-methylolmelamine ethers and diisonitriles.  Solutions of the polymers are used as coating compositions.  Examples polymerizing in aqueous suspension solutions of partially hydrolyzed ethylene-vinyl acetate copolymers in (1) a mixture of vinyl chloride and monopropyl and monododecyl maleates, followed by cross-linking of the graft copolymer with a reaction product of trimethylolpropane and toluylene diisocyanate, (2) a mixture of vinyl chloride, vinyl acetate and monopropyl maleate, and (3) a mixture of vinyl chloride, vinyl acetate and 2-hydroxypropyl methacrylate, followed by cross-linking of the graft copolymer by the diisocyanate reaction product used in (1) or by N-hexamethylolmelamine hexabutyl ether.ALSO:Surfaces of metal, glass, paper and textiles are coated by applying thereto solutions in organic solvents of graft copolymers of vinyl chloride and a monoethylenic acid or derivative thereof or an organic vinyl ester upon a partially hydrolyzed copolymer of ethylene and a vinyl carboxylate (see Division C3).  After application, solvent is removed from the composition to leave a film which may be cross-linked by means of cross-linking agents present therein, e.g. polyisocyanates or N-methylolmelamine ethers.  Examples describe coating metal and glass with (1) a graft copolymer of a mixture of vinyl chloride and monopropyl and monododecyl maleates on a partially hydrolyzed ethylene-vinyl acetate copolymer, the resulting films being cross-linkable with a polyisocyanate (2) a graft copolymer of vinyl chloride, vinyl acetate and monopropyl maleate on a partially hydrolyzed ethylenevinyl acetate copolymer the resulting films being cross-linkable with polyisocyanates and methylolmelamine ethers, and (3) a graft copolymer of vinyl chloride, vinyl acetate and 2-hydroxypropyl methacrylate, the resulting films being cross-linkable with a polyisocyanate or N-hexamethylolmelamine hexabutyl ether.