baber/WOPTO huggingface dataset:
Patent GB-881545-A (GB)
Title: Improvements in or relating to shoring for use underground
IPC: E21D11/18
Filed: 1959-05-08
Abstract: 881,545. Shores &c. PAWRAT, F. W. May 8, 1959 [May 12, 1958], No. 15867/59. Class 20(2) A yieldable telescopic shore, subjected to bending and shearing forces in the directions 3 by the shored material have sliding surfaces 4 typically of polyamide, engaging co-operating slide faces 2 with slight resistance to sliding, and yielding clamps, not subjected to the bending and shearing forces comprising wedge-form members forming part of the upper shore member engaging blocks 5, typically of paraffined wood.
Patent GB-1348021-A (GB)
Title: Convertible rotary printing machine
IPC: B41F5/12
Filed: 1971-05-19
Abstract: 1348021 Rotary web-fed offset printing machine MASCHINENFABRIK AUGSBURGNURNBERG AG 19 May 1971 [20 May 1970] 15882/71 Heading B6C A rotary offset printing machine comprises plate cylinders 12 and 13, blanket cylinders 10 and 11 and an impression cylinder 14. The cylinders 10, 11 and 14 are mounted in eccentric bearings such that operation of pistons 16, 17 and 18 causes the press to be converted from a two colour set-up, Fig. 1, to a perfecting set-up, Fig. 2. The cylinders are driven from two transmission lines employing interengaging gears, each line having a clutch such that when the clutch in one line is engaged the offset cylinders are arranged to be driven in the same direction (for the two colour set-up) and when the other clutch is engaged the offset cylinders are arranged to be driven in opposite directions (for the perfecting set-up). The clutches may be electromagnetically operated and each comprise two axially interengaging toothed discs. The teeth may be arranged to permit only one engagement position, thus ensuring registration of the cylinders. Two of the above-described units may be linked to provide a press adapted for three colours and one colour perfecting (Fig. 5), four colours (Fig. 6), and two colours and two colour perfecting (Figs. 7 and 8).
Patent GB-845451-A (GB)
Title: Improvements in and relating to water heaters
Inventor: KINNELL JAMES LINDSAY
IPC: F24H9/18
Filed: 1957-05-20
Abstract: 845,451. Grates. KINNELL & CO. Ltd., C. P. June 5, 1958 [May 20, 1957], No. 15981/57. Class 126. [Also in Group XIII] The grate of a hot-water boiler (see Group XIII) has a central grid 43 (which may be oscillated by a lever 44) and an outer annulus 40 in two halves.
Patent GB-203407-A (GB)
Title: Apparatus for producing rarefactions and/or compressions in a gas for use in agitating liquids and other purposes
IPC: B01J19/00
Filed: 1922-06-09
Abstract: 203,407. Hickman, K. C. D. June 9, 1922. Vacuum engines.-Hydraulic apparatus for producing rarefactions and compressions in a gas. which may be utilized for the agitation of a liquid or for performing work comprises long and short siphon limbs and a gas space in communication with the short limb and provided with means which, at a predetermined point of the operation, suddenly restrict the flow of gas into the gas space and so break a liquid seal communicating with it. Fig. 1 shows an apparatus comprising a gas vessel a connected to a siphon b, c, d, to which liquid is supplied by a pipe k. Two U-tubes p, n are connected to the top and bottom of the vessel, and a third tube f connected to the top of the vessel and at its other end to a power cylinder containing a piston or a flexible diaphragm, or to an open-ended reservoir r, Fig. 2, immersed in the liquid to be agitated. When using the reservoir r, the tube n is closed and water supplied through the pipe k drives air out of the U-tube and seals it. On rising to the top of the siphon tube, the water begins to escape faster than it is supplied, producing a vacuum in the vessel a and tube f and causing liquid to rise in the reservoir r until it reaches a constriction t, when its rise is checked, causing a rapid lowering of pressure in the vessel a and a consequent rush of the water in the U-tube p and breakage of the seal. Fig. 4 shows a modification in which a single water-seal U-tube 2 is provided, and the water enters by a pipe 3 and, when the apparatus is used for agitating liquid in a vessel 8, passes through a cock 6 to the vessel a. By immersing the agitating device in a vessel 9 having an overflow 10, closing the cock 6, and opening a cock 7, the agitating device may be washed out after use. In a further modification, the pipe 3 may end in a nozzle which by injector action forces into the vessel a an additional supply of water derived from the collected discharge of the siphon. When the apparatus is used as a vacuum engine, the retardation in the rate of flow of gas is effected by the piston or diaphragm reaching the end of its stroke, or it may be effected otherwise, for example by connecting apparatus such as is shown in Fig. 2 between the pipe f and the diaphragm or piston.
Patent GB-1602903-A (GB)
Title: Radiationsensitive copying composition
IPC: G03C1/00
Filed: 1978-04-24
Abstract: The photosensitive mixture contains, as the photosensitive compound, an s-triazine with two methyl groups which together contain at least one halogen atom, and an aromatic radical as a nuclear substituent.
Patent GB-291732-A (GB)
Title: Improvements in or relating to mixing machines
IPC: A21C1/14
Filed: 1928-06-01
Abstract: 291,732. Hobart Manufacturing Co., (Assignees of Johnston, H. L.). June 6, 1927, [Convention date]. Driving-mechanism. - A mixing-machine in which a mixing-tool is driven with a planetary motion about a vertical axis in a verticallyadjustable bowl, is provided with, (a) a friction clutch on the main shaft combined with a brake automatically brought into operation to stop the shaft when the clutch is disengaged, (b) lubricating means for the gearing driving the main shaft from the motor shaft comprising a sump of limited capacity to which oil is fed by a deflector plate as it leaks from the main gear case, and (c) handi-operated raising and lowering gear for the bowl and change-speed gear forming the subject-matters of Specifications 304,205 and 304,204 respectively. (a) The friction clutch comprises friction members 31 mounted on the main driving-gear 20 and driving-shaft 30 respectively and is controlled by a shaft 50 sliding in the latter and splined thereto. The shaft 50 is fitted with a conical member 52 engaging pivoted crank-members 44 engaging pins 41 in contact with the clutch ring 40. The crankmembers 44 are fitted with spring-pressed balls 60 engaging the member 52, the springs being adjustable and mounted in screwed sleeves 71 secured by locknuts 73. The pressure on the friction member is released on disengagement of the clutch by springs 85 on studs 86 carried by the clutch ring 40. Stoppage of the main shaft when the clutch is disengaged is effected by a member 91 held against rotation between friction discs 95, 96, and engaging the inner conical surface of the member 52. To prevent shock, the latter is splined to its shaft 50 and can move slightly against the pressure of springs 56. (b) Oil escaping from the main gear case through the gearing 113 is deflected by a plate 115 on to a wall 116 to fall into a well 111 of restricted size in which the gear 20 runs. The latter is driven by a gear 21 on the motor shaft and any oil thrown off by this gear is led by a deflector plate 120 on to the wall 114 and thence to the plate 115.
Patent GB-496966-A (GB)
Title: An improved manufacture of stabilised hydrocarbon polymers
IPC: C08K5/00
Filed: 1937-06-10
Abstract: Natural or synthetic high molecular weight linear hydrocarbon polymers containing no acetylene groups, e.g. derived from olefines such as isobutylene, styrol, and indene, diolefines such as isoprene, or butadiene, or hydrogenated rubber, gutta or balata, are stabilized towards heating by incorporating therewith 0,1-5 per cent of an aromatic compound having attached to the ring an -XH group, which may be alkylated or esterified by an organic acid and in which X represents an atom of oxygen, sulphur, selenium or tellurium.  The added substance may contain additional atoms of these elements which may also be present in either form or as disulphide.  Typical additions are indicated.  Examples are given of typical compounds and of the stabilization of polyisobutylene, obtained by the action of boron fluoride upon highly purified liquid isobutylene at a temperature of -100 DEG  C., with tertiary amyl phenol, tertiary amyl phenol sulphide and disulphide and b -thionaphthol.ALSO:Natural or synthetic high molecular weight linear hydrocarbon polymers containing no acetylene groups, e.g. derived from olefines such as isobutylene, styrol, and indene, diolefines such as isoprene, or butadiene, or hydrogenated rubber, gutta or balata, are stabilized towards heating by incorporating therewith 0,1-5 per cent of an aromatic compound having attached to the ring a -XH, group, which may be alkylated or esterified by an organic acid and in which X represents an atom of oxygen, sulphur, selenium or tellurium.  The added substance may contain additional atoms of these elements which may also be present in either form or as disulphide.  Typical additions are indicated.  Examples are given of typical compounds and of the stabilization of polyisobutylene, obtained by the action of boron fluoride upon highly purified liquid isobutylene at a temperature of -100 DEG  C., with tertiary amyl phenol, tertiary amyl phenol sulphide and disulphide, and beta thionaphthol.
Patent GB-199731-A (GB)
Title: Improvements in or relating to electric water heating apparatus
IPC: F24H1/10
Filed: 1923-06-21
Abstract: 199,731. Demole, E. June 22, 1922, [Convention date]. Heating by electricity.-An electrically-heated hot water supply is provided with a joint control of the water inlet cock and the current switch- A transversely-mounted hollow shaft b is mounted in the rear of the spigot of the cock a and is provided with an inlet orifice b<2> in communication with the cock c by way of an elbow joint d provided with a needle valve d<1> to control the supply to the cock c. The diameter of the connection is reduced inside the cold water pipe to facilitate the flow of water within the latter. The water from the cock is discharged between two casings f<1>, f<2> the latter being made of insulating material and provided with ducts f<4> which allow the water to circulate around a tubular heater f having a spiral groove cut in its surface and serving to house the electrical resistance g. The heated water is delivered by a nozzle f<6> to which a coffeemaking machine may be attached. The spigot of the cock c is integral with a cam h adapted to co-operate with a button of an electrical circuitbreaker housed in a case k fixed to the cock c.
Patent GB-1014682-A (GB)
Title: Improvements relating to radiation detectors
Inventor: HUNT STANLEY ERNEST
IPC: G01T1/24
Filed: 1961-06-04
Abstract: 1,014,682. Radiation - sensitive devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 10, 1962 [May 4, 1961], No. 16214/61. Heading H1K. A semi-conductor body containing a reversebiased PN junction with a thick depletion layer has an additional surface layer of a detector material which responds to radiation (e.g. neutrons) above a predetermined threshold energy level and releases secondary particles (e.g. α-particles) into the depletion zone to cause pulse discharge through the PN junction, means being provided for detecting the discharge pulses so produced. A radiation detector may comprise a plurality of such semi-conductor bodies coated with detector materials having different threshold energy levels.
Patent GB-162188-A (GB)
Abstract: 162,188. Dunbar, H. F., and Slater, J. May 1, 1920. Visible feeds; indicating. - In a force-feed lubricator, suction from an oil receptacle k to a pump a takes place through a sight-feed j and tube n, the glass j being held in position by a screwed plug 3 having a passage with a ball valve m. A cap 5 forms a sump below the plug 3. In a modification, the suction connection is direct into the interior of the receptacle and a test tap is provided above the delivery valve e to indicate the flow.
Patent GB-457345-A (GB)
Title: Method of producing laminated glass
Filed: 1935-06-04
Abstract: An intermediate layer for laminated glass is obtained by the polymerization of vinyl acetate or acrylic acid esters with the addition of softening agents and without solvents, the polymerization being carried to the middle stage and, after this stage is reached, all uncombined monomers being distilled off and the product rapidly heated to 120 DEG  C., and applied under pressure to a glass surface to which it adheres on cooling.  Suitable softening agents are tributyl phosphate, tricresyl phosphate and dibutyl phthalate, admixed with monomeric substance to the extent of 10,25 per cent. Thus, 15 per cent of softening agent may be added to vinyl acetate and polymerization rapidly effected by heating at above 80 DEG  C. Specification 381,693 is referred to.
Patent GB-1350024-A (GB)
Title: Agar and agarose
IPC: C08B37/00
Filed: 1972-04-10
Abstract: 1350024 Agar and agarose ethers and esters MARINE COLLOIDS Inc 10 April 1972 [7 June 1971] 16344/72 Heading C3U A modified agar or agarose which is alkylated, alkenylated or hydroxyalkylated and in which the alkyl groups contain 2-3 carbon atoms, the alkenyl groups contain from 1-3 carbon atoms and the hydroxyalkyl groups contain from 1-4 carbon atoms, in which the increase in the degree of substitution above that of the corresponding unmodified agar or agarose is from 0À01 to 1À0, which is water-soluble, and which has a gelling temperature at least 1‹ C. lower than the gelling temperature of the corresponding unmodified agar or agarose, may be obtained by alkylating, acylating or hydroxyalkylating the agar or agarose to introduce said groups, preferably after reducing the aldehyde end groups with, e.g. NaBH 4 . The reagents specified for use are:- 2-bromopropane, propylene oxide, ethylene oxide, 2-chloroethanol, epichlorohydrin, butylene oxide, diepoxybutane, acetyl chloride, and propionyl chloride.
Patent GB-694851-A (GB)
Title: Improvements in and relating to apparatus for curling longitudinal edges of strip metal, e.g., for producing fluxed solder wires
IPC: B23K35/40
Filed: 1949-06-20
Abstract: 694,851. Making solder wires. GAGARIN, S. June 20, 1949 [Aug. 14, 1948], No. 16352/49. Classes 83 (ii) and 83 (iv). Bending.-An apparatus for curling longitudinal edges of strips of deformable sheetmetal comprises an outwardly bowed supporting bed, means for drafting the strip along the curved bed, means for longitudinally tensioning the strip and die means fixedly located in at least one position on one or both sides of the bed so as to engage one or both edges of the strip to raise that edge or those edges away from the bed and then curl it or them back upon the body of the strip as it is drafted forward. The strip 68 is fed into an apparatus (Fig. 2) which comprises a frame structure 20, 21, 22 supporting a flat, widerimmed wheel 27 mounted on a shaft 25. A radial flange 29 on one side of the rim acts as an abutment for the strip which passes over the upper half of the wheel rim. A cross-plate 30, fixed to the frame structure, supports anglebrackets 31 to 35, each of which carries adjustable die rollers 42, 47 to 50 successively spaced around the upper half of the wheel 27 and arranged progressively nearer to the abutment flange 29. Each die roller has a concave die groove 43, 51 to 54, the diameter of which increases progressively from roller to roller to ensure uniform spacing between successive turns in the curling. The curled strip is shaped as shown in Fig. 10 by passing through one or more drawing dies 59. Initially the strip 68 passes beneath a guide roller 60 and over the upper portion of the rim 28 the strip being kept in close contact with the rim 28 by a slap shoe 61 and longitudinal tension applied by a driven take-up reel (not shown). The apparatus may be used for making a fluxed solder wire, the subject-matter of Specification 694,934, in which case the strip is next coated with a film of flux by an applicator 62 comprising a rotatablysupported roller 67 which transfers flux material from roller 65 to the strip. The coated strip, one edge of which abuts against the flange 29, then passes the die rollers 42, 47 to 50 which curl the strip into a roll which is finally drawn through the shaping die 59. The die rollers may have spring-biasing means to urge them towards the wheel rim 28 and the roller axes 46 may be inclined so that the inner edge of the bottom end 44 of the roller contacts the rim 28, causing the latter to rotate the rollers. A fixed curved plate or an endless belt may take the place of the wheel 27. When curling both edges of the strip the rim 28 (Fig. 14) is preferably of flattened " V " shaped cross-section, the die rollers being arranged in opposed pairs with their axes tilted towards the central plane 76 of the wheel. The die rollers contact the rim 28 at their innermost point 44, the peripheral edge of the bottom end 144 of the roller being chamfered, 78, to ensure a frictional drive. The curled strip then passes through a shaping die to form a circular rod of cross-section as in Fig. 13.
Patent GB-1270396-A (GB)
Title: Improvements in or relating to devices for providing illumination
IPC: F21W131/301
Filed: 1969-03-28
Abstract: 1,270,396. Lamps. MELUDE S.A. 28 March, 1969 [29 March, 1968; 8 July, 1968; 17 Sept., 1968; 22 Nov., 1968], No. 16391/69. Heading F4R. [Also in Division A4] A lamp comprises a rigid elongate shell 22 of symmetrical channel-shaped section having a bottom web 22a and a pair of side walls 22b which define a light-transmitting face 20, the channel being of generally U-shaped form and having a substantially rectilinear middle portion 27 and two substantially rectilinear end portions 24 1 , 24 2  set at an angle to the middle portion. The channel, which contains one or more electric lamp bulbs or tubes, may be made of metal, such as iron or aluminium, or a relatively opaque translucent synthetic plastics material, and the face 20 may be covered by a relatively transparent translucent material or a transparent material. The lamp may be pivotally mounted on a base 28 so that as it rotates suitably placed control contacts produce various lighting effects. Alternatively, it may be secured directly to a wall or ceiling or made of sufficient strength to serve as a table or bench, cushions or other accessories being retained thereon by magnetic means. A radio or loudspeaker may be incorporated in the lamp.
Patent GB-562784-A (GB)
Title: Improvements in and relating to machines for bending tubes
IPC: B21D7/022
Filed: 1941-12-19
Abstract: 562,784. Angular bending. BLACKBURN AIRCRAFT, Ltd., and NIVISON, D. B. Dec. 19, 1941, No. 16420. [Class 83 (iv)] A machine for bending tubes, particularly of small diameter, in one or more planes, comprises a base on which a freely rotatable toothed disc is mounted co-operating with a rack on a slide moved' along the base in a path parallel to a tangent to the disc, the slide carrying a shaping member with a pair of oppositely arranged shaping surfaces, which in turn co-operate with a pair of shaping surfaces on a member carried by the disc when the slide is displaced in opposite directions to bend the tube to the shape of the member carried by the slide. In bending tubes at two points or in effecting bends of opposite hand in a pair of axially aligned tubes, the tube or tubes are mounted between a member 16 and a double ended former 13 on a plate 12 mounted on a slide provided with a rack 4 engaging a toothed disc 3 freely mounted on a bed 1. The slide may be operated by a slotted lever 8 pivoted at 7 in one of a number of holes 6 in an arm 5 projecting from the bed. On the disc 3 is secured a double-ended co-operating shaping member 21. The opposite ends of the member 21 cooperate with the respective ends of the former during opposite strokes of the slide to bend the tube or tubes round the ends of the former 13. The former may be provided with two bending surfaces 14, 15 of different shape and arranged in superposed planes and co-operating with surfaces 22, 23 on the member 21 also arranged in superposed planes. When bending a tube in two planes at an angle to one another, after the first bend has been completed the tube is turned round and secured by a turn'buckle 20 in the recessed sides 18, 19 of pieces secured to a block 17 carried by the former 13 and a second bend effected between the members 13, 21 by traverse of the slide 12. The shaping members may be made of wood, metal or compressed fibre and may be replaceable by others of different shape. The machine may be operated by hand through a rack and pinion or by power.
Patent GB-827486-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C1/04
Filed: 1957-05-23
Abstract: 827,486. Spectacle frames. SOC. INDUSTRIELLE & COMMERCIALE DES OUVRIERS LUNETIERS, COTTET, POICHET, TAGNON ET CIE. May 23, 1957 [Sept. 11, 1956], No. 16420/57. Class 97(1) A spectacle frame comprises a brow bar C to which two lens mounts B are secured by screws V passing through nuts T on brow bar C and each'lens mount extends over a part only of the periphery of a lens and has anchored thereto the ends of a lens retaining wire F. One end of this wire is threaded through holes K in an anchoring piece A which is held on the mount by a screw V, and the outer end of wire F is passed through a hole M in the mount and knotted. Each lens mount preferably has an internal groove. Specification 762,055 is referred to.
Patent GB-827916-A (GB)
Title: Aircraft propeller
IPC: B64C11/18
Filed: 1958-05-22
Abstract: 827,916. Screw propellers. UNITED AIRCRAFT CORPORATION. May 22, 1858 [Nov. 1, 1957], No. 16458/58. Class 114. In an aircraft propeller blade of thin crosssection, the trailing edge over the outboard 25% of the blade span has a large camber between the last 15 % and the last 5% of the chord of the blade with the camber line deflected between 6 degrees and 13 degrees from the mean camber line of the blade. Specification 505,077 is referred to.
Patent GB-859380-A (GB)
Title: Improvements relating to combine harvesters
IPC: A01D41/12
Filed: 1957-05-24
Abstract: 859,380. Thrashing machines. MASSEY-FERGUSON Inc. May 24, 1957 [June 4 1956], No. 16473/57. Class 6(3). In a combine harvester which comprises a grain outlet, a bagging platform and mechanism for transmitting drive to its various components all mounted at the same side of the combine, the bagging platform is so mounted that it may be swung clear of the combine to afford easy access to the drive transmission members. The platform comprises a sheet steel floor 48 fixed on its underside to two channel members 52 and 53. A subframe, on which the platform is supported, comprises a V-shaped angle member 34 whose legs 35 and 36 are rigidly secured to the body of the combine, and the platform is pivoted to the subframe by means of a vertical bolt 80 passing through the floor 48, the channel member 53, and a horizontal flange of the angle member 34, so that the platform can be swung relative to the subframe into or out of its operative position. The platform is held securely in its operative position by a latch 84 welded to the floor 48 and co-operating with a bolt 86 upstanding from the angle member 34.
Patent GB-917833-A (GB)
Title: Apparatus for measuring or setting-out a compound angle
IPC: G01B5/24
Filed: 1960-05-11
Abstract: 917,833. Sine bars. TILLEY, F. July 5, 1961 [May 11, 1960], No. 16550/60. Class 97 (3). Compound angles are measured by a pair of sine bars one of which, 5, has a reference surface 8 and a pair of supporting cylindrical pins 6A, 6B, parallel thereto, pin 6A being supported on slip gauges 7 and pin 6B having an extension which is a push-fit in a hole in the second sine bar 1. Cylindrical pins 2A, 2B, define axes which are parallel to a reference surface 3 and at right-angles to the hole in which pin 6B is a push fit and are located near the ends of the limbs of the L- shaped sine bar 1 and near the junction of the limbs.