baber/WOPTO huggingface dataset:
Patent GB-239974-A (GB)
Title: Improvements in or relating to dies for making or sharpening rock and coal cutting tools
IPC: B21K5/06
Filed: 1924-07-22
Abstract: 239,974. Heginbotham, R. July 22, 1924. Forging-dies for the manufacture of rock and coal cutting tools and of the type adapted to form or partly form tools, simultaneously point to point, and separate them from a bar at one operation of a power hammer &c., are provided with upper and lower auxiliary dies adapted to finish the partly forged tools or to sharpen a finished blunt tool. Means are provided transversely of the dies for adjustably supporting and positioning the tool between the auxiliary dies. The stationarv die a and the movable die b have angular cutters c, d adapted to forge two tools e, f, Fig. 5, in a bar disposed between the dies, the tool c being thereby severed. The tool e is then placed in a socket g in the die a and rests on a tapered key q, which is adjustable in a transverse groove p by a pivoted hand lever r so that the pointed end of the tool may be positioned opposite the face h of an auxiliary die slidable in dovetail grooves k. A removable member n on the die b has a die face o coacting with die face h for finishing the end of the tool to the shape shown in Fig. 2. The second tool f is severed from the bar by the cutter x, and finished in similar manner by the die faces. h, o, which may be employed also for re-sharpening worn tools. Faces t, u and v, ware provided on the dies for trueing up the bar when necessary. The die face o may be formed on a hinged portion 6, Fig. 4, of the member n, a lug 7 engaging a recess 8 to prevent strain on the hinge. Gauges 2, 3 on the die a determine the length of the tool cut off. Die b has a shank 5 to receive the percussive blows from the power-operating apparatus and an eye 4 on each side for securing it thereto.
Patent GB-659057-A (GB)
Title: Improvements relating to the production of substituted styrene homopolymers
IPC: C08F12/18
Filed: 1947-07-03
Abstract: a -methylstyrenes containing two or more nuclear chlorine substituents are polymerized.  In examples: (1) a -methyldichlorostyrenes, and (2) a -methyltrichlorostyrenes are polymerized in a methyl chloride solution containing anhydrous aluminium chloride at a temperature of - 70 DEG  C. and purified by precipitation from a methyl ethyl ketone solution by methanol; poly-a -methyltetrachlorostyrene is prepared from isopropyl-tetrachlorobenzene by (3) distillation under a fractionating column, or (4) hydrolysis with sodium hydroxide to the tetrachlorostyrene monomer which is polymerized by distillation, and the residues purified as above; (5) the redistillation of chloroisopropyl pentachlorobenzene gives poly-a -methylpentachlorostyrene which is purified by precipitation from an acetone solution.ALSO:a -Methyl polychlorostyrenes are obtained by (1) chlorinating cumene to nuclear dichlorocumene, using an iron catalyst in the absence of light.  A second chlorination in light without catalysts yields chloroisopropyl-dichlorobenzene, which is dehydrochlorinated at 280 DEG  C. in steam using a silica gel catalyst and fractionated to yield a -methyl dichlorostyrene; (2) light-chlorinating nuclear trichlorocumene without a catalyst to a -chloro-isopropyl trichlorobenzene which is dehydrochlorinated at 300 DEG  C. and fractionated to yield 2-methyltrichlorostyrene; (3) nuclear-chlorinating trichlorocumene and fractionating to tetra- and pentachlorocumene.  The tetra fraction is light-chlorinated and on fractionation yields chloroisopropyl tetrachlorobenzene which on fractionation is polymerized, or (4) treated with aqueous sodium hydroxide for 18 hours at 100 DEG  C. to give a -methyl tetrachlorostyrene; (5) the pentachlorocumene from (3) is light-chlorinated and on fractionation yields chloroisopropylpentachlorobenzene, which on refractionation is polymerized.
Patent GB-126317-A (GB)
Title: An Improved Apparatus for Driving Pipes and the like.
Inventor: HUMPHRYES JAMES HULSE
IPC: E21B7/04
Filed: 1916-12-08
Abstract: 126,317. Humphryes, J. H. Dec. 8, 1916. Bore-hole apparatus.-Pipes for oil and water pipe systems, culverts, &c. are driven horizontally or at an inclination, without previous boring operations, by apparatus in which means for engaging the pipes and means for rotating them are mounted on a running frame which is impelled bodily forward to impart a longitudinal push to the pipes. As shown, the motor c, mounted on a truck b, acts through spur or worm gearing g to drive a spindle h which is connected to the pipes t at the front, and at the rear bears against the hydraulic ram cylinder e through a thrust bearing. The motor also drives a pump d which supplies water to the cylinder e to act on the ram f; this pump may also drive a hydraulic motor which replaces the gearing g. A winch p may return the ram or the machine, or the ram may be double-acting. An extension piece m may be provided for the ram and the positions of the cylinder and ram may be interchanged. The chuck l for the pipes comprises hinged members u, v for gripping the pipeunions, and a central projection r which enters the union and presses against the end of the pipe. The hydraulic ram may be replaced by a screw ram. The machine is employed in connecting the pipes. The Provisional Specification states also that the ram extension may be pivoted.
Patent GB-419655-A (GB)
Title: Improvements in or relating to road traffic signalling means
IPC: G08G1/096
Filed: 1934-06-14
Abstract: 419,655. Road signals for controlling traffic. SOUTHGATE, J. F., 311, Bramford Lane, Ipswich, and DOBSON, H. M., Dairy Green, Crockham Hill, Edenbridge, Kent. June 14, 1934, No. 17679. [Class 118 (ii).] Auxiliary groups of lamps are provided to indicate the time available before the change of signal, a group being lit when the corresponding main signal is lit and the lamps of the group being cut out in succession. As shown in Fig. 1, the main signal comprises a single lens or ground glass sheet 3 illuminated by a number of green lamps G or red lamps R or by the amber lamp A. When the green lamps G are lit the auxiliary green lamps g are also lit and these lamps are cut out in turn at the end of a quarter, half, and threequarters of the " go " period, the fourth auxiliary lamp being extinguished when the main signal changes to amber. The main signal is then illuminated by the red lamps R and the auxiliary lamps r are lit and successively cut out as in the case of the green lamps g. Alternatively, the main signals may be of the usual form, as shown in Fig. 6, with the auxiliary lamp groups surmounting the red and green lamps. The auxiliary lamps may be luminous electric discharge tubes. Reference has been directed by the Comptroller to Specifications 316,598 and 396,120.
Patent GB-530647-A (GB)
Title: Improvements in or relating to torpedo tubes
IPC: F41F3/08
Filed: 1939-06-16
Abstract: 530,647. Torpedo tubes. PAINE, H. SCOTT-. June 16, 1939, No. 17690. [Class 9 (ii)] A piston for use in a torpedo tube 10 comprises in combination, a central boss 15 to engage the casing 17 of the torpedo, circumferentially disposed abutments 20 to engage the brackets of the torpedo fins 18, and a crown or disc 14 on which they are mounted, the crown being sufficiently flexible as to ensure that the propulsive effort is applied to the central boss and all the fin brackets of the torpedo. To the rim of the crown 14 is secured a flange 19 carrying a sealing leather 21 and having an inturned lip 20 to abut the fin brackets. Stiffening ribs 23 extend radially from the boss 15 to the flange 19. The crown is domed outwardly so as to reduce the space to be filled with the propellant gas entering at the port 13. Either compressed air or gas from the combustion of a slow-burning explosive may be used. The closure 11 of the tube is preferably also domed.
Patent GB-348913-A (GB)
Title: Change speed gear mechanism
IPC: F16H3/08
Filed: 1930-06-07
Abstract: 348,913. Change-speed gearing. TRIUMPH CYCLE CO., Ltd. and SYKES, A. A., Priory Street, Coventry. June 7, 1930, No. 17720. [Class 80 (ii).] In four-speed gearing having a fixed gear 26 at one end of a lay shaft 20 and a free gear 21 at the other end in constant mesh with gears 4, 8 fast on driving and driven shafts 2, 6, and having also between these pairs further constant.mesh pairs 14, 29 and 12, 27, of which latter each gear is movable axially into clutch engagement with the adjacent end gear, such clutch engagement is effected in each case by the gear teeth of one of the gears. Thus the gear teeth of gears 4, 29, 12, 21 are used as clutch teeth. In changing, the gears 14, 12 are moved together to left and right to produce two speeds, and the gears 29, 27, to produce the other two speeds. The gears 14, 12 have grooves 18, 17 on their adjacent ends for engagement with one striker, and the gears 29, 27 similar adjacent grooves 31, 32. In a modification, the gear 12 is larger than the gear 8 so that the highest geared drive is effected through the end gear pairs which may have helical teeth. A modification suitable for motor-cycles is described with a kick-starter acting on the lay shaft.
Patent GB-613167-A (GB)
Title: Improvements in and relating to magnesium-base alloys
IPC: C22C23/00
Filed: 1946-06-13
Abstract: Magnesium-base alloys of low density and good tensile strength-some of which are also susceptible to heat-treatment hardening-comprise from 1-12 per cent lithium, 0.5-11 per cent zinc, not over 0.1 per cent sodium and the remainder magnesium with or without traces of impurities.  Sodium is preferably absent as it is said to have a deleterious effect upon the mechanical properties of the alloys, and to minimize its amount the alloys are prepared by melting the magnesium under a flux preferably comprising one part lithium fluoride and three parts lithium chloride, and adding the zinc and lithium the latter being held beneath the molten metal surface by means of e.g., an inverted perforated steel cap.  The alloys may be cold rolled after hot rolling, and are said to be suitable for wrought fabrication and castings, and particularly for rivets.
Patent GB-440162-A (GB)
Title: Improvements in and relating to stereotype matrix and method of forming the same
IPC: B41D1/00
Filed: 1935-06-21
Abstract: 440,162. Stereotype matrices ; chases. BUNGAYTYPE - DELAWARE, Inc., 216, East 45th Street, New York, U.S.A. June 21, 1935, No. 17840. Convention date, Nov. 8, 1934. [Classes 100 (ii) and 100 (iii)] In the preparation of a stereotype matrix, the matrix is secured on the forme and is impressed into the type and the back is treated, while the matrix is still on the forme, to produce a plane surface. The matrix 25 is provided with side and end extensions adapted to be received in wedge-shaped grooves 20 in the side members of the chase and the bearers 14, and to be secured in position by correspondingly-shaped locking-bars 27 which act to tension the matrix and may be provided with teeth to assist in gripping the matrix. In order to avoid difficulties due to warping of the chase the frame-members may be less than type high, and the type &c. be secured in place by type-high bearers formed with the grooves 20. In a further modification, an ordinary chase may be employed with a grooved enclosing frame. The matrix is secured in position and a soft backing-material 50 is secured thereto by gum. The chase, matrix, and backing are then placed in a press with a backing 51 of absorbent material such as blotting-paper, and if desired a layer of cloth 52 to prevent the backing-paper and absorbent material from adhering, and a sheet 53 of material such as brass to prevent the absorbent material from adhering to the platen of the press. Heat and pressure are applied for a sufficient time to expel a substantial amount of the moisture from the matrix. The forme and the matrix are then removed, the cloth and absorbent material stripped off, and while the matrix is still in position its back surface is treated, as by grinding, to remove the backing 51 from the high portions and produce a matrix of uniform thickness. The matrix is then removed from the forme, trimmed, and baked to remove residual moisture.
Patent GB-1022350-A (GB)
Title: Frequency modulation reception system
IPC: H03G3/20
Filed: 1963-05-06
Abstract: 1,022,350. Frequency detectors. HITACHI Ltd. May 6, 1963 [May 21, 1962], No. 17842/63. Heading H3A. An FM signal is applied across one diagonal of a bridge L 1 , L 2 , C v , C tuned to the mean frequency of the signal and having a non- linear capacitor C p  in one arm of the bridge and a tunnel diode D R  producing negative resistance across the other diagonal so that self oscillations are generated in the bridge and 90 degrees out of phase with the input FM signal at the mean frequency. The generated frequency varies with and follows the incoming frequency deviation but the phase difference varies from 90 degrees in accordance with the magnitude and sense of the instantaneous frequency deviation and so producing a corresponding variation in amplitude of the resultant combined output signal which, detected, produces a demodulated FM signal. The variable capacitor C v  may be supplemented or replaced by a variable inductor.
Patent GB-1110892-A (GB)
Title: Improvements relating to wave soldering
Inventor: WALKER BRIAN THOMAS
IPC: B23K3/06
Filed: 1965-04-28
Abstract: 1,110,892. Soldering. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. 22 April, 1966 [28 April, 1965], No. 17888/65. Heading B3R. The subject matter of this Specification is substantially the same as that described in Specification 1,110,891 but the claims are concerned with a method of wave soldering parts mounted on a board wherein the solder encountered by the parts to be soldered as the board passes over the solder wave flows in a direction opposite to that of the board's travel having emerged from a nozzle and travelled along an upwardly inclined member extending from the nozzle and been reversed in direction by an upstanding lip at the end of the inclined member and with apparatus for use in the method.
Patent GB-1433553-A (GB)
Title: Automatic feeding of workpieces of limp sheet material
IPC: D05B3/20
Filed: 1973-04-13
Abstract: 1433553 Workpiece guides SAMCO-STRONG Ltd 13 April 1973 [14 April 1973] 17907/73 Heading DIG A work guidance mechanism for feeding limp sheets in a sewing machine comprises sensing means for determining the edge contour of the workpiece, and workpiece orientating means actuable in response to the sensing means to maintain a workpiece edge in contact with a workpiece edge guide and having a workpiece clamp rotatable about an axis normal to the worktable and a workpiece engaging member movable about an arc about said axis, means to move the members towards and away from the table and to rotate them to maintain the workpiece edge in contact with the guide. As a workpiece is fed along below an adjustable plate 72 by a normal feed arrangement 20 parallel to edge guides 36, 38 until photocell 28 detects the end of the workpiece. The rotatable member 34 is then lowered until it touches the top of the workpiece, this being achieved by means of a solenoid 52 operated by the photocell. Clutch parts 46, 48 engage to rotate the member 34 and with it the attached work engaging finger 32 to rotate the workpiece to bring the next seam into line. At this point the work guide 36 is retracted to allow the corner of the workpiece to move outwards as it turns. At this point a downwardly directed air jet 79 is is released to keep the corner in contact with the work surface. Stitching then continues until all four sides are stitched. As the termination of stitching nears work guide 38 is moved towards the needle to move the line of stitching away from the workpiece. A thread cutter 152 slidably mounted in a slidable holder 150 on a frame 142 is urged downwardly by a piston and cylinder arrangement 144 the holder 150 being connected to the piston rod 146 by a spring 158. A lever 162 is pivoted on the slide 150 and has a work engaging foot 160. The arrangement can be moved downwardly until the holder 150 is stopped by an abutment 168. Lever 170 pivoted on the slide 154 then moves a link 180 downmards and the knife and foot 100 move the last amount. At this point the plate 72 is moved down to clamp the workpiece with the thread tensioned. The thread is cut the plate 72 released and the foot 160 acts to remove the finished workpiece. Attaching labels:-Labels L placed in a hole 120 in plate 72 are moved by a cranked finger 126 acted on by two pneumatic rams 106, 116 to feed them to a point below the plate 72 and into the line of stitching where they are attached to the workpiece. Work supports:-When the stitching operation is nearly completed an additional support surface 200 may be raised by a pneumatic piston 212 through a chain 204 and sprocket 202 under the signal from the counting device, described in the parent application, which determines when the stitching operation has been completed.
Patent GB-727953-A (GB)
Title: Improvements in vulcanizing butyl rubber and curing bags made therefrom
IPC: B29C33/76
Filed: 1953-06-29
Abstract: Butyl rubber is vulcanized by heating with dimethylol phenol in the presence of from 1 to 10 parts of chlorosulphonated polythene per 100 parts rubber.  The butyl rubber may be prepared from isobutylene or ethyl methyl ethylene and butadiene, isoprene, piperylene, 1,2-, 1,3-, 1,4- or 2,3-dimethyl butadiene or methyl butadiene.  The preferred dimethylol phenols, which may be resinous or not, are 2-6-dimethylol-4-hydrocarbon-phenol, where the hydrocarbon is methyl, t-butyl, octyl, t-octyl, dodecyl, phenyl, benzyl, alpha,alpha-dimethyl benzyl and cyclohexyl. Preferred proportions of phenol are from 0.2 to 20 parts per 100 parts butyl.  Preferred vulcanization temperatures are from 200-400 DEG  F. for 5 minutes to 3 hours.  Carbon black and such materials as stearic acid may be present in the rubber which may be used in making curing bags. U.S.A.  Specification 2,296,800 is referred to.
Patent GB-121173-A (GB)
Title: Improvements in connection with the Leading-in Wires, or Conductors, of Incandescence Electric Lamps, High Vacuum Apparatus, and the like.
Inventor: HOGE FREDERICK
IPC: C03C27/04
Filed: 1917-12-04
Abstract: 121,173. Hoge, F. Dec. 4, 1917. Leading-in wires for high-vacuum apparatus are made of iron, steel, or an alloy thereof such as nickel-steel, coated with a mixture of powdered glass and tungsten, molybdenum, vanadium, or uranium, or an oxide of one of these metals, For instance, eight parts of tungsten or the dioxide may be mixed with one part of powdered glass and with water or alcohol. The paste may be applied by inserting the wire in a hole in the end of a glass tube which has been dipped in the paste. When coated, the wire is heated by passage of electric current or otherwise, to melt the paste. According to the Provisional Specification, other metals ha.ving thermal expansion coefficients approximating to that of glass may be used, and enamel may be substituted for glass.
Patent GB-1069827-A (GB)
Title: Improvements in or relating to runway trolleys for hoists
IPC: B66C7/00
Filed: 1966-04-25
Abstract: 1,069,827. Recovery trolleys for hoists. BIR. FIELD ENGINEERING Ltd. April 25, 1966, No. 17988/66. Heading B8B. A hoist (12), Fig. 1 (not shown), is suspended from a beam 16 by a trolley 14 which has downwardly converging links 48, 54 fast with crossshafts 70, 76 which are resiliently mounted in bearing blocks 84, 94 on the hoist housing 18 by torsion bushes 86, 95. Grooves 74, 80 in the cross-shafts provide adjustment of the lateral spacing of the wheels 28, 30 to suit girders of various widths. Stops 96 on the links 48, 54 restrict the lifting of the wheels from the supporting flange 38. To prevent the hoist from falling due to a failure of the trolley a C-shaped link, which embraces the flange 38, is pivoted to the bearing block 94. The hoist may be as described in British Specification 1,013,587.
Patent GB-186695-A (GB)
Title: Appliance for use in the drying of gloves
IPC: D06F59/04
Filed: 1921-07-02
Abstract: 186,695. Strathern, I. T., Strathern, A. G., and Neilson, R. M. July 2, 1921. Glove trees and stretchers.-A frame for supporting gloves during drying is formed of rustless wire bent into the shape of the hand and wrist and having a hook formed out of the same piece of wire. In a modification, the hook is formed at right angles to the plane of the frame. Reference has been directed by the Comptroller to Specifications 534/03, 28666/04, [Class 34, Drying], and 113.906.
Patent GB-1066778-A (GB)
Title: Tools for tyre valves
Inventor: KOSSOWSKI JANUSZ
IPC: B60C29/00
Filed: 1965-04-29
Abstract: 1,066,778. Reachers. FORD MOTOR CO. Ltd. April 29, 1965, No. 18004/65. Heading B4W. A tool for removing and replacing the valve cap 12 on the valve fitted to the inner tyre of a double wheel and tyre arrangement, comprises a tubular member 16 of resilient plastics material and a handle by which the resilient member can be forced over the valve cap and rotated to unscrew the valve cap or renew the valve cap on the stem. The member 16 may be fitted over one end of the tubular handle part 15 or the handle and tubular member 16 may be moulded in one piece from plastics material.
Patent GB-1147963-A (GB)
Title: Apparatus for producing carbon black
IPC: C09C1/50
Filed: 1967-04-20
Abstract: 1,147,963. Apparatus for carbon black. UNION CARBIDE CORP. 20 April, 1967 [20 April, 1966; 10 April, 1967], No. 18132/67. Heading C1A In a burner for producing carbon black, a combustion chamber, in communication with a processing chamber, wherein pyrolysis of feedstock occurs, whose inlet has a smaller crosssection than said chamber, has at its inlet end passage means for introducing oxidant gas and fluid fuel concentrically disposed around passage means for introducing fluid feedstock thereinto, and both zones are defined by fluidcooled metal walls. As shown, oxidant gas enters combustion chamber 16 via inlet port 34, passage 36, annular cavity 38, passages 40 (see also Fig. 2, not shown) and discharge port 42, while fuel enters via corresponding members 44-52. Ports 42, 52 discharge streams to intersect a short distance downstream of end 54, thus giving good mixing. Hydrocarbon feed enters via inlet port 72, central passage 74 and discharge port 76, discharging as a coherent stream along line 80 to throat 82 at the entrance to processing chamber 18. Hot products of combustion flow through throat 82 with substantial turbulence and at near-sonic velocity; the hydrocarbon stream is thus dispersed and pyrolysed. Products may be discharged at 20, passed to a conventional reactor for further reaction, quenched, and the carbon black collected. The apparatus may be made of copper and cooled by water flowing via port 56, passage 60, annular chamber 28, passage 68, annular chamber 69 and conduit 70. The oxidant is preferably pure oxygen and should be the stoichiometric amount required to burn the fuel, this giving a temperature of 2200 to 3300 C. in the combustion chamber 16. Discharge temperature is 1370 to 1930 C. Carbon black so produced has an average particle size of 50 to 550 A, a surface area 20 to 1000 m.<SP>2</SP>/g., an oil absorption of 0À8-5À0 cm.<SP>3</SP>/ gm. and nigrometer values of 50-100. In another embodiment (Figs. 4-6, not shown) the processing chamber is reduced to a short throat portion, and interchangeable head portions enable either gas or oil to be used as a fuel; if oil is used, it may be mixed with the oxidant before introduction into the combustion chamber.