baber/WOPTO huggingface dataset:
Patent GB-365110-A (GB)
Title: Process for the manufacture of acetone soluble primary acetates of cellulose
IPC: C08B13/00
Filed: 1930-07-09
Abstract: Acetone-soluble, "primary" acetates of cellulose are obtained by acetylating a mono-hydroxy-alkylether of cellulose by means of acetic anhydride, glacial acetic acid and a catalyst at a low temperature. The mono-hydroxy-alkyl celluloses are obtained by the action of halogenated alcohols on alkali cellulose; or by the action of alkylene oxides on cellulose in the presence of tertiary bases with controlled quantities, temperature and time of reaction. Hydroxy-ethyl, -propyl and -butyl ethers are suitable. In an example, alkali cellulose is etherified with an excess of chlorethyl alcohol, the formation of the di-ether being avoided by employing not too large quantities of concentrated alkali; the insoluble monohydroxyethyl cellulose, which displays complete fibrous structures, is worked up with acetic anhydride, glacial acetic acid and sulphuric acid in a kneading apparatus at a temperature below 25 DEG  C. until a structureless, glassy mass is produced which is then poured cautiously into much cold water. According to a second example, 120 parts of cellulose impregnated with 12 parts dimethylaniline is mixed in an autoclave with an excess of ethylene oxide, e.g. 500-600 parts, and heated to 100 DEG C. for 3-10 hours, yielding a monohydroxyethyl cellulose or an hydroxyethyl ether thereof, according to the time of reaction. After evaporating excess of ethylene oxide, the catalyst is removed by alcohol or by blowing off with steam and the product is worked up in a similar manner to the first example.
Patent GB-771171-A (GB)
Title: Improvements in or relating to electric transformers
Inventor: SEELEY WILLIAM
IPC: H01F27/26
Filed: 1955-07-20
Abstract: 771,171. Transformers. KOLSTERBRANDES, Ltd. July 20,1955, No. 20966/55. Class 38 (2). A transformer for a hearing aid comprises a frame having a tag 5 blanked out on opposite sides thereof, the tags 5 engaging slots 11 in a panel 9 so that the transformer is held in an aperture 10 in the panel 9 with most of its height below the panel. The frame consists of two L-shaped parts 4, one side of each of which has slots 6 cut therein and the other side of each having a large window cut therein and tags 7 formed at the end thereof. Laminations 2 forming the magnetic core each comprise two F-shaped parts, the short limbs projecting into the windings 1, the long limbs extending around the windings. When mounted in the frame the windings 1 and the former 3 project through the windows in the L-shaped parts, the assembly being held together by passing the tags 7 through the slots 6 and bending the tags over. Metallic screening members 8 may be clamped to the laminations by means of the frame parts and when the transformer is placed inside a hearing aid case the screens 8 may be arranged to contact metal foils inside the case. An earthing lead for the transformer may conveniently be soldered to one of the tags 5.
Patent GB-1085279-A (GB)
Title: Variable flow metering devices
Inventor: CURRAN JOHN PATRICK STEWART
IPC: G05D7/01
Filed: 1964-05-21
Abstract: 1,085,279. Gas turbine engine fuel systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug.19, 1965 [May 21, 1964] ,  No.20982/64. Heading F1G. [Also in Division F2] A metering valve for gas turbine fuel systems, is of the kind comprising a pair of outer sleeves 10, 11 of which one sleeve, 11, is movable, and an inner tube 12 slidable in the sleeves and having an opening 13 with opposite edges diverging axially, the axial and circumferential dimensions of the resulting flow port being varied by the movements. Sleeve 11 responds to engine speed whilst tube 12 is moved by a fluid pressure device and is rotatable through a rod 17. Sleeve 11 has a passage 14 extending through the wall thereof and inclined as shown to the sleeve axis. The portion in which the passage is formed overlaps the sleeve 10. The arrangement of passage 14 counteracts a tendency, arising from the Bernoulli effect, of the movable sleeve to move toward the fixed sleeve, in that a counter force is applied to the outwardly presented surface of the passage by the fluid.
Patent GB-346628-A (GB)
Title: Improvements in or relating to separable fasteners
IPC: A44B19/36
Filed: 1930-07-11
Abstract: 346,628. Sliding-clasp fasteners. POUX, N. J., 745, North Street, Meadville, Pennsylvania, U.S.A. July 11, 1930, No. 21008. Convention date, June 6. [Class 44.] In a sliding-clasp fastening the movements of the slider are limited by stops formed of masses of stitching on the stringers. Fig. 9 shows the stringers 1 secured together by cross-stitches 13 embracing the beaded edges 2. A longitudinal row of stitches 25 may be provided between the edges to bind the cross-stitches together. A mass of longitudinal stitches 19 form an abutment for a stop plate 20 (shown separate, Fig. 11), against which the slider 8 contacts at the end of the opening movement. Stitches 26 on each stringer limit the closing movement. In modifications the stitches 19 are omitted, the stitches 13, 25 being used alone, or with a stop plate. Fig. 13 shows a further form in which a filling-piece 23 is placed between the stringers, the whole being bound together by cross-stitches 24 and two rows of longitudinal stitches 25.
Patent GB-749702-A (GB)
Title: A process for extracting oil from cooked material comprising flesh, oil, gluewater and bone of whalesand other aquatic creatures
IPC: C11B1/00
Filed: 1953-07-29
Abstract: <PICT:0749702/III/1> In a process for extracting oil from cooked material comprising flesh, oil, gluewater and bone particles of whales and other aquatic creatures, which material is sieved in one or more stages to separate liquid constituents for subsequent centrifuging, oil-bearing dust-like bone particles produced in the cooking are separated, before the sieving, from the flesh fibres by agitation and, after the sieving, the mixture of gluewater, oil and bone particles is centrifuged.  As shown, the cooked material is fed continuously to a container A, from which it overflows continuously into a settling container C.  A gluewater mixture is taken from the middle of container C by a pump D and is returned to container A through nozzles E, whereby a whirling effect is produced in container A and the particles of bone dust are caused to separate from the flesh fibres.  The flesh fibres settling in container C are withdrawn by means of a pump F or a worm conveyer or worm press and fed to a coarse rotating or shaking sieve or filter G, from which coarse solids are removed in the direction of the arrow S.  A mixture of gluewater, oil and bone dust is withdrawn by a floating extractor H from the surface in container C and is fed partly to a chamber J of the sieve G, in order to wash off the oil adhering to the flesh fibres and to effect a more intensive washing out of the bone particles, and partly to a rotating or shaking sieve or filter K, in order to effect a final screening of the flesh fibres from the mixture of gluewater, oil and bone dust.  The remaining flesh fibres are removed from K as indicated by the arrow T.  The mixture of gluewater, oil and bone dust passing through the sieves enters a chamber P, from which it is withdrawn and partly fed to a nozzle separator N by a pump L, and partly reintroduced under pressure through a nozzle M into the chamber P to assist in the delivery of bone dust particles to the separator N, in which the mixture is separated into its various components and from which gluewater is returned to the sieves as shown.  The oil, flesh and bones may be initially cooked in a rotary cooker and fed to a fat separator, from which the cooked residues are fed to the container A.  A mixture of bone dust and gluewater may be taken direct from the container A and fed to the sieves.
Patent GB-855622-A (GB)
Title: Improvements in or relating to mortar boards
IPC: E04G21/00
Filed: 1959-06-19
Abstract: 855,622. Mortar boards. HIGGINBOTHAM, A. June 19, 1959, No. 21131 /59. Class 61. A mortar board, which may be made of steel, comprises abase plate C provided with upwardly directed walls A, D along its front and back edges respectively and preferably with an upwardly directed wall B extending along one of its side edges.
Patent GB-441690-A (GB)
Title: Improvements in electric heating appliances
IPC: F24D13/02
Filed: 1934-07-20
Abstract: 441,690. Wall and ceiling coverings. CAMPBELL, A. J., Oulton Croft, Stone, Staffordshire. July 20, 1934, No. 21204. [Class 20 (iv)] [See also Group XI] Coverings for walls, ceilings, and floors comprise thin sheet metal boxes 5 containing wire resistance heating elements 6 and mechanically connected by wire ties 13 passing through their adjacent walls. The boxes are of nickel-chromium alloy preferably mixed with iron, and the surfaces may be oxidized, blackened or polished. The ties 13 are enclosed in ceramic tubes 17 filled with cork and seating on indentations in the boxes receiving enlarged ends of the ties 13. Groups of boxes may be connected by short bolts 10, and may have thin metal boxes filled with kieselguhr at the back. The heating boxes have hinged or detachable lids.
Patent GB-499453-A (GB)
Title: Improvements in apparatus for the continuous production of closed channels, pipes and the like under the ground
IPC: F16L1/038
Filed: 1938-07-18
Abstract: 499,453. Moulding concrete pipes in situ. JANERT, H. July 18, 1938, No. 21205. Convention date, July 17,1937. [Class 20 (ii)] Underground pipes, closed channels, and the like are moulded in a continuous manner by a travelling apparatus comprising a shaft c through which cement, concrete, or the like is fed, and means for imparting a shaking movement of the shaft in the direction of its length. The shaft shown is shaken by a rod d connected to a lever e which is moved up and down by an eccentric f. The apparatus comprises a member a fitted with a base b adapted, when the apparatus is moved forwardly, to cut a trench in the earth. A driving shaft i within the member a is geared to a shaft carrying a core g and a spiral feeding screw h, the latter being arranged beneath the lower end of the shaft c. As the material passes out of the shaft, it is consolidated and shaped by a member k secured to the lower end of the shaft. Guard plates m secured to the member a are arranged on both sides of the member k, and carry scrapers n which, by scraping away some soil at the sides of the trench, produce a protecting layer p for the pipe.
Patent GB-281366-A (GB)
Title: Improvements in or relating to electrical plug-and-socket couplings or connectors and switches
IPC: H01R13/633
Filed: 1926-08-28
Abstract: 281,366. Scholes, G. H., Pearce, F. J., and Scholes &. Co., Ltd., G. H. Aug. 28, 1926. Plug couplings. - The plug member 8 carries a projection 14 having an enlarged head 14<a> that is forced past a resilient stop 16 or a set of such stops as plug is inserted to give a quickaction make and break. The, stops consist of balls 16 prised forward by springs 17 to project into a recess 13 which the projection 14 enters. Two sets of stops 16, Fig, G. may be employed, the head 14<a> being suitably formed, one set effecting the quick make and the other the quick break action. Two enlargements on the projection 14 may also coact with one set of stops. The projection 14 may engage with a pin 23 to form an earth continuity coupling. A plate 25 is rotated by a spring 26 to cover the sockets when the plug is withdrawn, the plugs being inserted through apertures in the plate.
Patent GB-646035-A (GB)
Title: Means for securing a sheet member to an electrically insulating rod
IPC: H01J29/82
Filed: 1947-08-05
Abstract: 646,035. Supporting conductors. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 5, 1947, No. 21273/47. Convention date, June 7, 1946. [Class 36] [Also in Group XL (a)] An electrically insulating rod and a sheet member with a struck-out flat portion are secured to. gether by means of two clamping members which grip the rod, one of the clamping members being an integral portion of the sheet member bent out of the plane of the flat portion. Disc electrodes 5, 6, 7, cylindrical electrodes 11, 12 to which collars 13 are welded, and deflection plates 14, 15 are secured on four parallel ceramic columns or rods 19 by struck-out curved portions to which are welded similar separate elements 23. As seen in Fig. 7, the semi-cylindrical part 20 is struck from the sheet metal disc 5 and in combination with the similar part 23 which is afterwards welded to it, encircles the post 19. The circular arc of the element is just less than 180 degrees to produce a stressed grip on the post. For the deflector plates 14, 15, the bracket-members are welded to the outside of the plates, whilst the collars 13 have radially-projecting portions on the periphery bent at right angles to co-operate with similar clamping members welded thereto.
Patent GB-212897-A (GB)
Abstract: 212,897. Grimme, Natalis, & Co. Akt.- Ges., (Assignees of Hoffmeister, H.). March 12, 1923, [Convention date]. Multiplying and dividing apparatus. -A machine is provided with means whereby one or the other, or both, of two revolutions counters may be operated by a single tooth movable with the laterally-movable totalizing-counter carriage. The two revolutionscounters a, b are adapted to be operated by a single tooth c through wheels a<1>, b<1> which are staggered so that the tooth c may in three positions engage with only a<1>, with only b<1> ,or with both a<1> and b<1>. This tooth c is on a sleeve c<2> carried so as to rotate with a shaft d in the counter carriage and displaceable relatively thereto by a groove c<1> and fork e rigid with a bar f carried by screws f<1> passing through slots g<1> in a plate g rigid with the counter carriage. The bar f is adjustable relatively to the plate g for the said three positions of the tooth c and is locked in adjusted position by a spring-pressed pin h in this bar f engaging in notches i<1>, i<2>, i<3> in the plate g. Rigid with the bar f is a block k passing through the plate g and having on its underside slots n<1>, n<2>, n<3> which co-operate with pins o on a shaft p there being one pin for each denomination, and the shaft p having a handle p<1> adapted for three positions q<1>, q<2>, q<3>. According to the position of this handle p<1> the appropriate pin o is in the central slot n<2> or is moved along either of the slots n<1>, n<3> to move the bar f and to force the pin h into the notch i<1> or i<3> respectively, thus moving the bar f and tooth c relatively to the plate g and the counter-carriage into one of the three positions relative to the revolutions-counters. This shifting mechanism may displace the revolutions-counters instead of the tooth c.
Patent GB-222287-A (GB)
Title: Improvements in oil coolers for use with internal combustion engines
IPC: F01P11/08
Filed: 1923-08-23
Abstract: 222,287. Armstrong Siddeley Motors, Ltd., and Smith, F. R. Aug. 23, 1923. Cooling motors and radiators, air blast for.-Apparatus for cooling lubricating-oil for vehicle engines that are cooled by air circulated by a centrifugal fan comprises a group of tubes G coiled round the inside of the casing B of the fan and connected to headers E, F situated at the sides of the outlet D of the fan. The tubes are preferably connected in pairs to branches from the headers, to lessen the number of joints, and the headers are divided by baffles such as E<2>, Fig. 3, into compartments to provide a circuitous path for the oil. A by-pass pipe J controlled by a spring-loaded valve contained in the valve-box J<2> connects the two headers outside the fan casing.
Patent GB-893754-A (GB)
Title: Improvements in and relating to containers for biological liquids
IPC: A61M39/14
Filed: 1959-06-22
Abstract: 893,754. Polyethylene containers. BRAUN, B., [trading as BRAUN, B. [firm of]]. June 22, 1959 [June 28, 1958; July 10, 1958; Aug. 22, 1958], No. 21375/59. Drawings to Specification. Class 2(6) [Also in Groups VI and XVII] Thin-walled containers are made of high pressure polyethylene of relative density 0À921 to 0À925 and preferably 0À922. In a modification the containers are made of mixtures of high pressure polyethylene and, e.g. 10 to 20%, low pressure polyethylene, the relative density of said mixtures being 0À921 to 0À925 and preferably 0À922. The containers may be used for taking, preserving and giving biological liquids, e.g. blood.
Patent GB-441409-A (GB)
Title: Improvements in vaporisers for internal combustion engines
IPC: F02M21/10
Filed: 1934-07-21
Abstract: 441,409. Vaporizers. SOC. DES CARBURATEURS OILGAZ, 45, Rue De Colombes, Courbevoie, Seine, France. July 21, 1934, No. 21390. Convention date, July 22, 1933. Addition to 405,800. [Class 7 (iii)] The parent Specification describes a vaporizer in which mixture flows around a number of tubes traversed by the exhaust gases, the tubes being of oblong cross-section arranged with their major axes at right angles to the flow of mixture. These oblong tubes, Fig. 2, produce zones of eddies 2 in which impurities collect and which enhance the cracking of the fuel. These zones may be increased by lengthening the major axes, but this checks the flow of mixture unduly. According to the invention, therefore, the tubes are provided on their outer surfaces with notches . 3, Fig. 3, or projections to divert or detach the mixture stream from the tube and produce the increased eddy zones 4. The projections or uneven parts may be on both the front and rear faces as shown at 10, 11, 9 in Fig. 6, or the front face may be convex. Such tubes 14, Fig. 7, which facilitate the purification and gasification, may be combined with other tubes 13 to which the mixture adheres throughout to increase the heating effect. The tubes may be cast in frames forming blocks or units.
Patent GB-354966-A (GB)
Title: The method of manufacturing bells
IPC: C22C9/00
Filed: 1930-07-15
Abstract: Bells are made of copper-silicon alloys containing up to 6 per cent of silicon, with or without the addition of about 1 per cent of tin, or up to 20 per cent of zinc, or both.  An example contains 81 per cent of copper, 4,5 per cent of silicon, 0,5 per cent of tin, and 14 per cent of zinc.
Patent GB-484954-A (GB)
Title: Improvements in or relating to means for controlling the movement of gun turrets andsimilarly movable bodies
IPC: F41G5/04
Filed: 1935-07-27
Abstract: 484,954. Controlling gun turrets; hydraulic apparatus. FAIREY AVIATION CO., Ltd., and LOBELLE, M. J. O. July 27, 1935, No. 21435. [Class 92 (i)] [Also in Group XXIX] Relates to handle devices for controlling guns and similarly mounted bodies of the kind in which movement of the handle about one or both of two intersecting axes produces, through liquid pressure or like means, corresponding movement of the control device of the driving means for the gun &c. to effect movements thereof in the same sense as the handle is moved. According to the invention, the handle has three limbs a, a, b arranged in T-form with the central part c between the upper limbs a bowed to accommodate parts of the transmission mechanism. In the form shown, vertical movements of the limb b cause rotation of a shaft d, crank arms f on which engage one or the other of pistons g working in oil cylinders h connected by pipe lines j to the control member of the driving means not shown. Traversing movements of the limbs a cause rotation of a shaft k, crank arms n on which engage one or the other of pistons o working in cylinders p connected to the control member of the driving means by pipe lines q. The bracket r supporting the mechanism is shown clamped to a tube z. The driving means may be in the form of a reversible infinitelyvariable-speed gear, effecting training movements of a gun turret and elevational movements of the gun in the turret.
Patent GB-355461-A (GB)
Title: An improved appliance for withdrawing pit-props and the like
IPC: E21D15/60
Filed: 1930-07-16
Abstract: 355,461. Chain and like wrenches. SKELLINGTONS, Ltd., WOOD, G., and PITT, G. N. A., Atalanta Steel Works, Princess Street, Sheffield. July 16, 1930, No. 21467. [Class 61 (iii).] A wrench, primarily for withdrawing pit props, comprises two semicircular or other-shaped jaws a, b pivoted together at c and a lever d connected to the jaw b by a pair of links e and provided with a cam end f shaped to bind against a slight recess in the jaw a when the lever d is pulled in the direction of the arrow by an appliance such as a " Sylvester," thus drawing the. jaws together and preventing circumferential slipping.
Patent GB-903102-A (GB)
Title: Improvements relating to pneumatic conveyors for loose materials
Inventor: STRIBLING JOHN BRIAN
IPC: B65G53/60
Filed: 1959-06-23
Abstract: 903,102. Pneumatic conveyers. ACME VENTILATING Ltd. June 23, 1960 [June 23, 1959], No. 21472/59. Class 78 (1). Material such as damp foundry sand is admitted to a pipe 2 through a hopper 20 and air is drawn through the system from an inlet 19 by means of an exhauster unit 13 driven by a motor 17. The material is conveyed to an outlet at 10 controlled by a valve 15 and a filter is provided for the air at 16. In a modification (Fig. 1, not shown) the exhauster unit 13 is replaced by a piston-type compressor pump at the other end of the system. The hopper 20 may be formed with a Venturi shape (Fig. 3) and may be controlled by an adjustable slide 25. Air may be admitted through side panels 27 of porous material. In an alternative combined hopper and air inlet (Fig. 5), a Venturi action is produced by a tapered air inlet passage 35 leading to the base of the hopper 29. Electrical or mechanical vibrations may be applied to the passage 35 at 36. The outlet chamber 10 may comprise a series of weighted rubber curtains 39 which tend to deflect the material entering at 38 to an outlet 40. Air passes to the exhauster at 41.
Patent GB-668877-A (GB)
Title: Control of variable pitch propellers driven by gas turbine engines
IPC: B64C11/30
Filed: 1949-08-18
Abstract: 668,877. Variable-pitch propellers. ARMSTRONG SIDDELEY MOTORS. Ltd., LINDSEY, W. H.. and CASWELL, E. G. June 23, 1950 [Aug. 18, 1949; Nov. 4. 1949], Nos. 21481/49 and 28308/49. Class 114. A unit placed between the engine throttle and the propeller speed control unit so that when the throttle is opened quickly the propeller pitch is temporarily coarsened to give an extra thrust. A valve inner body 11. is connected by the lever 10 to the throttle. When this is moved quickly it admits pressure fluid from passage 19, port R and passage 21 to move the piston 24. decreasing the speed setting of the control unit governor. Pressure fluid also flows through the restricted passage 15 to the vane 13 moving the valve casing to follow the inner body, thus restoring the valve setting in its new position. Fluid pressure is thus cut off from the cylinder space 23 and the piston is restored to its initial position, resetting the governor control. The width of the ports 32, 35 and the lands on the piston allows continual slow circulation of operating fluid in the mid position through the passages 28, 29, 30. ln the position 42 of the lever 10 for take off the fluid does not act on the vane 13 and the propeller unit is moved to its extreme position. Specification 638,672 is referred to.
Patent GB-805379-A (GB)
Title: Spray drying
IPC: A23B5/035
Filed: 1956-07-12
Abstract: Powdered egg albumen is prepared by spraying liquid egg albumen by means of a gas of a pressure between 7 and 15 pounds per square inch, through an atomizer having a plurality of nozzles, in a diverging pattern into a hot gaseous medium, the liquid albumen, supplied to the atomizer, being maintained at a pressure of about 7 p.s.i.  The use of a low-pressure atomizer minimizes shearing action during the spraying, and the albumen is dried without being denatured.  In the apparatus <PICT:0805379/III/1> shown, air at a temperature of 350 DEG F., supplied through conduit 5, is forced into chamber 2 through inlets 6.  Liquid egg albumen is pumped from tank 12 through piping 11, 13 to atomizers 10 (see Group XXIX), from which it is sprayed into chamber 2 by air from compressor 17.  The hot air in the chamber dehydrates the spray droplets, and powdered egg albumen collects on the floor of the chamber.  The moist gas, leaving the chamber, flows through filter bags 7 to outlet 8.