baber/WOPTO huggingface dataset:
Patent GB-820532-A (GB)
Title: Process of producing crotyl alcohol
Inventor: MILLIDGE ALFRED FRANK
IPC: C07C33/025
Filed: 1957-07-17
Abstract: Crotyl alcohol is produced by heating 1-chlorbutene-2 and/or 3-chlorbutene-1 with water and at least two molar proportions of methyl vinyl carbinol per molar proportion of chlorbutene. Preferably the mixture is heated to a temperature in the range 30-80 DEG  C. The process is conveniently carried out by stirring the chlorbutene and methyl vinyl carbinol with water at elevated temperature and distilling the resulting mixture to separate the crotyl alcohol and methyl vinyl carbinol, in the form of their azeotropes with water from the hydrochloric acid produced.  The two water azeotropes may then be separated by a further distillation.  The crotyl alcohol may then be dried.  Preferably the separated methyl vinyl carbinol/water azeotrope is returned to the reactor.  Some methyl vinyl carbinol may be formed during the reaction but if it is recycled the concentration of methyl vinyl carbinol in the reaction mixture gradually increases until a concentration is reached which inhibits further formation of methyl vinyl carbinol.  Preferably the hydrolysis is begun with the excess of methyl vinyl carbinol already present but since in the absence of such an excess a considerable proportion of methyl vinyl carbinol is formed, the starting mixture may be obtained by heating chlorbutene with water with no methyl vinyl carbinol present; the resulting methyl vinyl carbinol may be separated from the hydrolysis product and recycled to the reactor, the recycling being carried out until the concentration of methyl vinyl carbinol has reached the necessary level.  In an example, one molecular proportion of crotyl chloride is heated with two molecular proportions of methyl vinyl carbinol and water to give crotyl alcohol with a small quantity of methyl vinyl carbinol.
Patent GB-705029-A (GB)
Title: Improved process and device for the continuous preparation of highly polymeric compounds
IPC: C08G69/04
Filed: 1951-09-27
Abstract: Polymerization of epsilon caprolactam is effected by flowing the monomer in a horizontal direction, while heating, through a spiral channel in a vessel, and discharging the product vertically through a tube in which a different temperature may be maintained (see Group III).  The epsilon caprolactam is mixed with phosphoric acid and water, and heated for 24 hours at 260 DEG C. and for six hours at 240 DEG C.; the product is formed into threads, fibres, ribbons, films, rods, &c.ALSO:Highly polymerized compounds are prepared by flowing monomeric or low polymeric compounds in a horizontal direction, while heating, through an open channel in a vessel 1, the successive parts of the channel being separated by common walls, and the product being discharged vertically through outlet 9 and tube 10 in which a different temperature may be maintained.  The feed enters at 5 and flows through a spiral channel formed by the bottom of the vessel and a bent metal sheet 12; baffles 16 prevent stratification of flow. The apparatus also includes heating jacket 6, inert gas inlet 11, gas and vapour outlet 3 provided with a condenser, and collecting channel 19 for guiding condensed <PICT:0705029/III/1> liquid to the beginning of the spiral channel.  After passing down tube 10 the polymerized product may be formed into threads, fibres, ribbons, films, rods, &c. An example describes the polymerization of epsilon caprolactam (see Group IV (a)).
Patent GB-762246-A (GB)
Title: Improvements in or relating to film carriers for photographic developing tanks
Inventor: BROWN JOHN NEVILLE
IPC: G03D13/14
Filed: 1954-08-04
Abstract: 762,246. Photographic developing tanks. BROWN & CO., Ltd., N. July 27,1955 [Aug. 4. 1951], No. 22640/54. Class 98(2) In photographic developing tanks having film carrier provided with spirally grooved end discs, a stop member is provided adapted to fit into a spiral groove and with 'means for detachably and positively engaging it therein, the member being so shaped that it closes the groove to a sufficient extent to prevent a strip of film from moving along the groove beyond the member. The stop member, of which more than one may be provided, prevents overlapping of the adjacent ends of two or more lengths of film inserted in the film carrier. As shown in Fig. 1, the film carrier comprises a fixed spirally grooved disc 2a and a movable spirally grooved disc 2b adjustable along the barrel 5 to accommodate films of different width. Each disc carries, about half-way along the length of the spiral groove, a boss 12 over one of the apertures in the disc and having an aperture 13, Fig. 3, through which passes a bifurcated stop member 15. The arms 16a, 16b of the member 15 carry lugs 18, and a further lug 19 is provided on the arm 16a. The groove under the boss 12 is straight and its sides are made vertical. The lugs 18 restrain ready withdrawal of the member 15 once inserted in the aperture 13, since they contact the shoulder 14, and when the stop is in operative position, the lug 19 engages under the shoulder 14 to prevent inadvertent displacement. The boss and stop may be both of moulded plastic, or one or both may be made from metal. More than one boss may be provided and the film carrier marked eo indicate the appropriate length of film. Only the upper disc may carry the stop member. Two outer discs each provided with stop members maybe used with a third intermediate disc spirally grooved on :both sides or with two intermediate discs each spirally grooved on one side and mounted back to back. The boss may :be detachably mounted in a slot or aperture in the disc so that it can be moved from one aperture to another. The stop member may be mounted on a shaft passing through the disc and rotatable to move the stop member between operative and inoperative positions, spring or other means maintaining the stop member in its operative position. The stop member may also be wedge-shaped and have spring fingers engaging over the walls of the groove.
Patent GB-940223-A (GB)
Title: Improvements in or relating to pneumatic tube conveyor systems
Inventor: KIRK JOHN ROBERT
IPC: B65G51/20
Filed: 1961-06-22
Abstract: 940,223. Pneumatic despatch apparatus. LAMSON ENGINEERING CO. Ltd. June 22, 1962 [June 22, 1961], No. 22641/61. Heading B8A. In a pneumatic tube conveyer system the sending and receiving stations 2, 3, Fig. 1, of similar construction have a compressed air supply through a pipe 5 of large diameter to propel the carrier from the sending station and a reduced supply through a smaller diameter pipe 7 for use when receiving and which forms a cushion of air for retarding the carrier. The pipes 5, 7 are connected to the ends of the pneumatic despatch tube 1 which is provided with exhaust valves 9, 9a near the ends to permit the escape of air. The system is operated through a time delay control relay 21 associated with a push button 22 and indicator lights. In operation, the carrier is placed in a cage 10, Fig. 2, which is raised by a pneumatic cylinder 12 to lift the carrier into the end of the tube 1. A limit switch (not shown) on a door 13 covering the cage 10 prevents operation of the cylinder 12 before the door 13 is closed. A catch mechanism 16, 17 holds the door 13 locked during despatch and is automatically released by the lowering of the cage 10 for release of a despatched carrier.
Patent GB-503173-A (GB)
Title: Improved screw-threaded closure cap for bottles and like containers
IPC: B65D41/04
Filed: 1938-02-02
Abstract: 503,173. Closure caps. MADAUS, G. G. W., MADAUS, F. J. N., and MADAUS, J. M. T., (trading as MADAUS & CO., DR.). Feb. 2, 1938, No. 22678. Divided application. [Class 125 (iii)] A screw-threaded closure cap for bottles &c. is formed with longitudinally extending peripheral grooves 2 of ratchet-tooth formation offering greater resistance to the fingers when unscrewing the cap than when screwing it on. Reference has been directed by the Comptroller to Specification 24095/11, [Class 125 (iii)].
Patent GB-1135280-A (GB)
Title: Photopolymerizable compositions and elements
IPC: C08F2/46
Filed: 1966-06-02
Abstract: 1,135,280. Photopolymerizable compositions. E. I. DU PONT DE NEMOURS & CO. 2 June, 1966 [3 June, 1965; 4 March, 1966], No. 24695/66. Heading C3P. [Also in Division G2] Photopolymerizable compositions comprise (1) at least one addition polymerizable non- gaseous ethylenically unsaturated compound, (2) a 2,4,5-triphenylimidazolyl dimer consisting of two lophine radicals bound together by a single covalent N-N bond, and in which one or more of the phenyl groups may be substituted, and (3) at least one compound which, on reaction with the free radicals produced on exposure of component (2) to actinic radiation, produces free radicals capable of initiating the addition polymerization of component (1). The compositions may also contain (a) an energytransfer dye which enables the component (2) to be sensitive to radiation wavelengths outside the U.V. range, e.g. in the visible region, and (b) an oxygen scavenger component, e.g. S-allylthiourea, N-allylthiourea, dimethyl sulphoxide or stannous chloride, which reduces the concentration of free, dissolved oxygen in the compositions. The components of the composition may be uniformly distributed in a film-forming binding agent, e.g. a cellulose derivative or a synthetic resin. Polymerizable components (1) specified include pentaerythritol triacrylate, polyethylene glycol diacrylate, triethylene glycol diacrylate, polyethylene glycol dimethacrylate, polyoxyethylated trimethylol propane triacrylate, polytetramethylene glycol diacrylate, and also the cross-linkable polymers described in Specification 1,110,050. Component (3) may be an amine, e.g. a tertiary amine, an amine-substituted leuco dye, a leuco triphenylamine dye or a salt thereof, carbon tetrabromide, bromoform, N-phenylglycine, 6-bromopiperonal, ascorbic acid, 2-allyl thiourea, thiourea, sarcosine, N,N-dimethyl- or N,N-diethyl-glycine, or a sodium salt of EDTA. The compositions may also contain other components, e.g. polymerization inhibitors, dyes, pigments, thermographic compounds and colour-forming components. The compositions are polymerized on a support material to produce image-bearing elements (see Division G2).
Patent GB-734735-A (GB)
Title: Windscreens and associated air deflectors for motor road vehicles
IPC: B60J1/20
Filed: 1953-08-18
Abstract: 734,735. Vehicle bodies. AUSTIN MOTOR CO., Ltd., and RIX, J. R. Aug. 17, 1954 [Aug. 18, 1953], No. 22698/53. Class 108 (1). A deflector 12 which may be of metal or glass is fixed to the bonnet 11 of a motor vehicle to deflect air over the upper edge of the windscreen 10 without causing obstruction to the driver's view of the road.
Patent GB-662132-A (GB)
Title: Fluid control valve
IPC: F16K27/02
Filed: 1946-07-30
Abstract: 662,132. Valves. NOCK, H. July 30, 1946 [Sept. 17, 1945]. No. 22729/46. Class 135. A valve assembly for a fluid control system comprises a body member with a plurality of intersecting bores in a single plane and extending from the outside of the body, each bore containing a valve closure member and a seat therefor, a fluid-pressure supply port intersecting one of the bores above the valve seat therein, an exhaust port intersecting another of the bores above the seat therein, a power device port communicating with the bores below their intersection, and means for selectively opening the valve closure numbers. In an embodiment, the assembly includes four movable valve members of which each pair, such as 12,.16, Fig. 6, control one side of a piston in a piston-and-cylinder power device, and each valve member is a lift valve loaded by a spring positioned between the valve member and a plug 35 closing the end of the bore in which the valve member is situated. Conduits, such as 48, lead from the back and front of each valve member and from the pressure and exhaust lines to a socket 9 which receives a pilot valve device, the latter comprising a cup-like member containing a number of discs, W, X, etc., Fig. 12, formed with passages, Cb-1 and grooves 65 which interconnect the conduits 48. The passages and grooves in the pilot valve are controlled by ball valves BV-1, BV-2 which are moved when buttons 82 are depressed. Depression of the appropriate pair of buttons, removes ball valve BV-1 from its upper to its lower seat and so seals off the flow of pressure fluid from the pressure source or back pressure from the power device from passage Cb-1 through groove 65 to the space at the back of the appropriate valve member 12 or 16 and, at the same time, places that space in connection with exhaust through groove 65 and upwardly past ball valve BV-2. Removal of the fluid pressure from the back of one valve member, say, valve member 16, allows pressure fluid from inlet P and groove 24 to lift member 21 and so expose passage C-2 leading to one side of the power device to the full inlet pressure. The fluid exhausting from the other compartment of the power device in the subsequent movement of the latter will force open the opposite valve member and the fluid in question will run to exhaust through a groove, similar to 32, and passage R. The ports and grooves in the discs of the pilot valve are surrounded by endless grooves 63 filled with packing material. The ball valves in the pilot valve may be depressed by tappets (not shown) which are actuated by disc armatures 100, 106, Fig. 24, of electromagnets 99, 107, respectively. In an emergency, discs 100, 106 may be depressed manually by rotating cap 140, the latter carrying a disc formed with cam slots in which engage loose balls on the upper ends of tappets 149, 150 whose lower ends engage the discs 100, 106.
Patent GB-715766-A (GB)
Title: Liquid heater units for use with radiators
Inventor: HAYLE JACK HEPWORTH
IPC: F24H3/00
Filed: 1951-09-28
Abstract: 715,766. Liquid boilers. MILLGATE ENGINEERING CO., Ltd. Sept. 25, 1952 [Sept. 28, 1951], No. 22734/51. Class 64(1) A heater for connection with a liquidfilled radiator comprises return and outlet headers 1, 3, a heat source, and two tubes 5, 6 coupling the two headers, the tubes running substantially parallel' to one another and being taken off the return header 1 at different levels between which the heat source is arranged. The tubes may be of S- or U-shape, or may be coiled. The inlet 2 and outlet 4 of the headers are in the same straight line. The heat source may be a gas or liquid fuel burner 10 or an electric heater. The casing 13 has at the front a downwardly directed outlet for hot gases and a ledge to support the radiator, and at the rear a false back through which cooling air circulates.
Patent GB-1471794-A (GB)
Title: Process for regenerating a solid reactant
IPC: A01N37/40
Filed: 1975-05-23
Abstract: 1471794 Regeneration of solid reactant CHEVRON RESEARCH CO 23 May 1975 [17 June 1974] 22737/75 Heading C1A A solid reactant consisting of metal or metal compounds on a porous support which has been expanded by reaction with hydrogen sulphide is regenerated by a three stage process comprising (i) contacting the expanded solid reactant with dilute oxygen in an inert diluent gas at a temperature in the range 200 to 425 F., (ii) contacting the solid material with a reducing gas at from 300 to 500 F., (iii) heating the solid material treated as above in an inert atmosphere at from 450 to 600 F. The use of a mixture of copper oxide and chromium oxide on an active carbon, alumina or silica support is preferred, the copper oxide and chromium oxide may be present in an amount of 7À8 to 16 weight per cent and 1À7 to 4 weight per cent respectively of the metals themselves based on the total weight of the solid reactant.
Patent GB-1040684-A (GB)
Title: Method of seperating solids from liquids
IPC: B04B5/10
Filed: 1963-06-07
Abstract: A mixture of solids and liquids from a wet-preparation plant (e.g. a jig) is separated in a centrifugal strainer separator, and a part of the filtrate therefrom is supplied to a device, e.g. a solid-walled centrifuge for separating the fine solids therefrom.  The "part of the filtrate" which is so supplied is selected to be of such quantity that the amount of solids contained in it corresponds substantially to the amount of solids of the same fineness absorbed by the liquid during each cycle. The liquid from the solid-walled centrifuge, together with the remaining filtrate from the centrifugal strainer separator, is returned as wash water to the preparation apparatus. In Fig. 2, (not shown), two filtrates are derived from the centrifugal strainer separator: that with low solids content is supplied to the solid-walled centrifuge and its liquid re-cycled as before; that with high solids content is further treated, and the resulting liquid optionally re-cycled.
Patent GB-802973-A (GB)
Title: Improvements relating to beet harvesting machines
IPC: A01D23/04
Filed: 1957-07-19
Abstract: 802,973. Beet harvester. JONGENEEL, A. M. July 19, 1957 [March 25, 1957], No. 22957/57. Class 6(3). A beet harvester for mounting on a tractor comprises a frame 20 fixed longitudinally between a rear wheel 4 of the tractor and the tractor body 2, a depth control frame 36 mounted on the fixed frame and movable up and down in relation to it, plough blades 9 projecting down from the depth-control frame and a spiked beet pick-up wheel 12 rotatably mounted on a floating frame 47 connected to the fixed frame. The fixed frame 20 includes side beams 21, 22, cross beam 23 and a rear crossbeam 24. A fixed cross-shaft 25 projects from between the side-beams 21, 22 to a point below a remote axle-housing 6 to which it is secured by a bracket 26, fitted with a clamp 27. A similar bracket 28 secures the cross-beam 24 to one of the axle housing 6 by a clamp 29. The crossbeam 23 extends laterally under the body 2 of the tractor to which it is attached by posts 30, 31, a connector plate 33 permitting lateral adjustment of the post 30. The depth control frame 36 is pivoted to the cross-shaft 25 by split collars 41 and includes side-beams 37, 38 connected by a cross-plate 39, the plough blades 9 and mounts 11 of disc coulters 10 being secured to the beams 37, 38. The frame 36 rests in its adjustable set-screw 42 on the plate 39, the lowered position on a stop made up of an screw 42 abutting against a stop 43 projecting from the beam 23. A ram 44, pivoted between the side-beam 21 and side-beam 37, may be extended by fluid pressure to swing the frame 36 upwards to an inoperative position and thereby raise the pick-up wheel 12 and a beet-topping unit, Fig. 1 (not shown) mounted on the floating frame 47, a stop formed by an adjustable set-screw 58 on a cross-plate 50 of the frame 47 abutting on a stop plate 59 on the plate 39. Side-beams 48, 49 of the frame 47 are pivoted by split collars 51 on the cross-shaft 25, and the beam 48 is offset, Fig. 2, to clear the ram 44. The pick-up wheel 12 is carried on a shaft 52 in the floating frame 47, the shaft 52 having a sprocket 53 driven by an endless chain 54 from a drive sprocket 55 on the tractor axle 5. A tightener 56, equipped with a tension spring 57, keeps the chain taut. Conveyers, Fig. 1 (not shown) are provided for removing the severed beets and the beet tops.
Patent GB-709329-A (GB)
Title: Improvements in waste heat tubulous vapour generators
IPC: F22B1/18
Filed: 1952-09-12
Abstract: 709,329. Waste-heat water-tube steam boilers. BABCOCK & WILCOX, Ltd. Sept. 12, 1952 [Sept. 15, 1951], No. 22983/52. Class 123(2) A steam boiler comprises a setting having tube-lined upright side walls 10, 10 and an inclined roof 13, a bottom with' ash pit 18 and dust hoppers 30, 37, a waste-heat gas inlet 15, and a damper-controlled gas outlet 21, said setting defining a gas-receiving chamber 14 and locating, in succession, a plurality of tube platens 57, 58, a superheater 32 and spaced banks 23, 24, 25 of steam-generating tubes extending between upper and lower drums 26, 27. As shown, the platens 57, 58 are disposed in vertical planes parallel to the side walls 10, the tubes of the platens extending between headers 61, 62, but with some of the tubes of the platens immediately adjacent the walls 10 extending between the headers 41, 42 of the tubes 10a lining said walls. Water is supplied to the lower headers of the setting wall tubes and platens from the lower drum 27 through downcomers such as 46, 47, 48, and to the header 54 of tubes 13a lining the setting roof 13 through downcomers 56. Tube cleaning openings 65, 67, 68, 69 are provided in the setting.
Patent GB-674248-A (GB)
Title: Apparatus for hauling supply waggons of mine-works, and other rail vehicles
IPC: E21F13/02
Filed: 1949-09-05
Abstract: 674,248. Rope railways. HENKEL, K. Sept. 5, 1949. [Oct. 1, 1948] No. 22993/49. Class 104 (ii). A creeper conveyer for rail waggons 11 comprises a driving member such as an endless chain 16 operating between a driving sprocket 6 and a guiding sprocket 5 in a vertical plane and carrying pusher members which are pivoted on the link pins and have an arm 13 arranged to project upwardly, when in the operative position, to engage behind an axle 12 of a waggon and propel the latter, the pushers being provided with guide rollers 14 journalled on extensions of the link pins, and rollers 15 pivoted on rearwardly extending arms of the pushers, these rollers being supported on flat tracks 17 located below the level of the rail track and arranged so that when the rollers 15 leave the end of the track they act as a counterweight and swing the pusher around the axis of the rollers 14 to disengage the arm 13 from the axle 12; the underside of the pusher between the rollers 14, 15 is given an arcuate shape and so dimensioned that it drops on to the axle 7 of the driving sprocket 6. During its return the pusher is suspended from the chain as shown in Fig. 1. The pusher members are arranged in pairs mounted separately on the same link pin, three such pairs being shown. To facilitate the tensioning of the driving chain 16 the shaft of the sprocket 5 is journalled within blocks 26, Fig. 4, which are slidable within slots 25 in the longitudinal side girders of the apparatus and can be adjusted by longitudinal movements of a rod 31. A continuous support for the guide rollers in all positions of adjustment may be provided by a flexible apron 29 comprising sheet metal tongue members with one end welded to shaftbearing bushes 28 on each side of the sprocket 5 and the other located between a slotted end 30 of the roller-grinding track. In the driving position of the pushers the rollers 14 are located between the track 17 and the upper flanges of I-sectioned girders at each side of the track, while the relative arrangement of the rollers 15 is such that they can be lifted from the track when the pusher is overrun and pivots about the axis of rollers 14.
Patent GB-221087-A (GB)
Title: Improvements in driving belts
IPC: F16G5/00
Filed: 1924-04-04
Abstract: 221,087. Dawson & Son, Ltd., J., and Dawson, J. April 4, 1924. Belts. - V-shaped &c. belts are formed of a number of flat belts of decreasing size superposed and secured together by rivets 8 of elliptic or oval cross section. Preferably a number of flat balata belts are used which may be also stuck together in the usual manner by gum. Elliptic or oval washers 9, 10 are arranged between the ends of the rivets and the belt.
Patent GB-250467-A (GB)
Title: Improvements relating to machines for drying and fixing the folds of pleated goods
IPC: D06J1/00
Filed: 1925-09-17
Abstract: 250,467. Ezbelent, G., and Ezbelent, R. Sept. 17,1925. Pleating. - To prevent the shrinking of the felt or other band a of a machine for drying and fixing the folds of pleated goods, blocks of wood, rubber, &c. c are attached to the inside or outside of the band at its edges b or the edges are beaded alone as shown in Fig. 3, or around blocks, springs, &c. h, Fig. 4, the blocks or beading engaging the ends of the rollers e, f or fixed guides or stops g. Specification 219,685 is referred to.