baber/WOPTO huggingface dataset:
Patent GB-757556-A (GB)
Title: Watch strap clasp or fastener
IPC: A44C5/24
Filed: 1954-04-26
Abstract: 757,556. Watch bracelets. FIRTH, B. W. April 25, 1955 [April 26, 1954], No. 11955/54. Class 43. [Also in Group XXV] A clasp or fastener for wrist watch straps of the kind comprising two plate members 1, 2, of reversed curvature hingedly connected together and adapted to be folded and releasably secured on each other has a stud or other projection 11 on one plate member which is adapted to be engaged and retained in any one of the usual small holes in the strap. The stud or projection 11 is provided on a U-shaped bridge-piece 9 which acts as a strap retainer and which is hinged to the plate member 1 by means of projections 7 and 8 on the plate member which engage apertures in the bridgepiece 9. Upstanding ears 13 on the plate member 1 hold the bridge-piece in its normal position. The two plate members are hinged together by means of projections 3 on the plate member 1 which engage apertures 5 in ears 4 on the plate member 2. The plate member 2 has a transverse slot 15 for receiving part of the strap which is bent back on itself and sewn in place and it is also provided with an upstanding tongue 17 which is adapted to clip into a transverse slot 14 in the plate member 1 to lock the two plate members together. Specifications 259,878, [Class 43], 423,826 and 619,055 are referred to.
Patent GB-179805-A (GB)
Title: Improvements in or relating to cylinder covers for internal combustion engines
IPC: F02F1/10
Filed: 1921-04-26
Abstract: 179,805. Swan, Hunter, & W. Richardson, Ltd., Rowntree, F., and Belyavin, P. April 26, 1921. Cylinders, construction of.-To permit expansion, the inside wall C of the cylinder head is connected to the rigid outer wall B by flexible means. In Fig. 1 an intermediate wall F constituting the outer wall of the water jacket is connected at the top only to the outer wall B by the ribs G, thus leaving the lower part free to yield on the expansion of the inner wall C. In Fig 2, the inner wall C is connected to the outer wall B, which forms in this case the outer wall of the water jacket, by means of ribs G', which are flexible either by reason of their length, or are made S-shaped in plan for the same purpose.
Patent GB-308910-A (GB)
Title: An electric flasher
IPC: B61L5/18
Filed: 1928-04-24
Abstract: 308,910. Andersson, A., Ohlsson, K., Sanderson, G., and Sanderson, B., (trading as Sandersons Linjeringsmaskinfabrik, A.). April 24, 1928. Road signals. - A flashing railway or road crossing signal or advertising lamp comprises a stationary bulb or bulbs 1 provided with a reflector 17 and enclosed in a. rotatable cylinder 2 provided with lighttransmitting apertures 3, the cylinder being continuously rotated by a Ferraris motor 7, 8. A coloured screen 21 may be interposed in the beam by an electromagnet 18, 19. As shown applied to a railway signal lamp the apertured cylinder 2 is fixed to the shaft 4 of the rotor 7 which passes between the poles of an adjustable permanent magnet 10. A support 14 carries the lamp-holder 16 and is inserted in a guide box 13. Beneath a cap 23 extending from the casing 9 is arranged an outer reflector 25 having a central aperture 31 and a cover glass 26 and at the centre of the glass is fixed a convex reflector 27 adapted to reflect light on to the reflector 25. When the solenoid 18 is energized the red screen 21 rises in front of the bulb, between the apertures 3 and 31. In a modification for road signals the rotating cylinder 2 is common to four bulbs each with a reflector 17, and four outer reflectors 25 are arranged at right angles each with a cover glass 26, the coloured screens 21 and convex reflectors 27 being omitted. The cylinder 2 may rotate about a horizontal axis. Fig. 5 shows the circuit of the railway signal lamp including a local battery B which is switched into circuit by the contact 39 of a relay R if the alternating current mains V or transformer T fail, the circuit being then completed through a buzzer 43 from which the stator 8 of the Ferraris motor 48 obtains pulsatory current. The bulb 1 is provided with two filaments 32, 33, the filament 33 being used alone for the white flash and both filaments being used when the solenoid 18 is energized by a switch 34 to interpose the red screen 21.
Patent GB-381149-A (GB)
Title: Improvements in mechanism for winding yarns or threads on bobbins or other bodies mounted on spindles
IPC: B65H54/28
Filed: 1931-04-23
Abstract: 381,149. Bunch-building motions for machines for spinning or winding yarns. AMBLER, G. H., Chellow Grange, Bradford, and HOLT, Ltd., T., Atlas Iron Works, Whitworth Road, Rochdale. April 23, 1931, Nos. 12023/31 and 5312/32. [Class 120 (ii).] In machines for spinning or winding yarns &c. and comprising a main cam adapted to move a member which effects or controls the movement of a copping rail &c. and an auxiliary cam which takes over the control or operation of the copping rail &c. while a bunch is wound on the bobbin &c. either within or without the mass of yarn &c. ultimately to be wound, the main cam being thereafter brought into action to operate during the ordinary winding, a lever a, rocked by a main cam b, carries a pivoted plate or arm d which tends to turn into a position in which it is engaged by an auxiliary cam f but which is normally turned out of that position. The main heart cam b oscillates the lever a through a bowl c thereon and the lever a contacts with a bowl k<3> adjustable on a second lever k which controls the movement of a copping rail g. The cam b is rotated through a worm wheel m by a worm l adapted to be disengaged therefrom when an eccentric bush in which it is mounted is rotated by the stopmotion mechanism of the machine, the copping rail then rotating the cam until the bowl c engages the hollow portion thereof. By depressing a counterweighted foot-lever j, a bowl j<2> thereon displaces the lever k to the left and allows a weight h secured to the first lever a to swing that lever away from the cam b. The plate d, Fig. 3, pivoted on a stud c<1> near the lower end of the lever a, is thereupon swung upwards by a spring e until its end engages a rising portion D of the auxiliary cam f which is rotatable with the heart cam b and is shaped as shown. On re-engagement of the drive of the cam b, the lever a is moved outwardly from the shaft n of the cams, then inwardly, and when the next hollow E is presented to the corner of the plate d the plate is turned downwards thereby and the main cam b is again allowed to operate, friction between the bowl c and plate d aiding to keep the latter away from the cams. The arm d depresses the copping rail so far that the winding takes place outside the main wound mass. Alternatively, the rail may be raised so that the winding takes place in the wound mass. In a modification, a toothed cam y, Fig. 8, replaces the plate d and is engaged by a toothed wheel z on the shaft m, this arrangement rendering unnecessary the disconnection of the drive of the heart cam.
Patent GB-527851-A (GB)
Title: Improvements in or relating to air-purifying elements and air-purifying apparatus
IPC: H01F1/00
Filed: 1939-04-21
Abstract: 527,851. Air filters for gas masks &c. MINE SAFETY APPLIANCES CO. April 21, 1939, No. 12038. Convention date, April 26, 1938. [Class 81 (ii)] [Also in Group XXVIII] An air-filtering element consists of a sheet of filter material formed into a series of accordion folds one layer of each fold being narrower than its other layer, whereby the folds only partially overlap, and means, of about the same thickness as the sheet, spacing the folds apart, the element as a whole being substantially flat. The sheet 9 is folded as shown in Fig. 3 and between the folds are disposed narrow strips 19, which if of flexible material such as tape may be so located by placing the tapes on the filter material before folding, or if rigid or semirigid may be inserted after folding. In the construction shown, which is suitable for use in a canister of the kind described in Specification 450,369, the filter element is clamped between a casing 1 and a rib 17 of an outer casing 6 having a perforated face 8. The casing I is connected to breathing &c. apparatus by a coupling 4.
Patent GB-840495-A (GB)
Title: Accessory for tire shaping and curing presses
IPC: B29D30/06
Filed: 1958-04-16
Abstract: 840,495. Tyre-moulding machines. McNEIL MACHINE & ENGINEERING CO. April 16, 1958 [Aug. 21, 1957], No. 12067/58.. Class 87(2). In a dual tyre moulding press having a lower mould 1 and a pivoted upper mould 2, the green tyre bands are fed by a pivoted chuck 25 on to the lower bead 3, and if a band is not positioned correctly a swinging arm 60 paving a spring extension 61 hits the band causing a switch to open and stop the upper mould 2 from closing.
Patent GB-777290-A (GB)
Title: Improvements in or relating to manufacture of benzene hexachloride
IPC: C07C17/02
Filed: 1955-04-26
Abstract: Benzene hexachloride is made by a continuous catalytic chlorination process in which chlorine is added to a liquid reaction mass containing benzene and acetic anhydride, the amount by volume of acetic anhydride being in excess of the unreacted benzene present, at a temperature between 308 DEG  K. and 223 DEG  K. (35 DEG  C. to -50 DEG  C.), the rate of chlorine addition being sufficient to maintain a chlorine concentration in the reaction mass of between 0.241 X  DEG K. -53.8 and 0.01776 X  DEG K. -3.96 gms. of chlorine per litre of reaction mass, where  DEG K. is the temperature of the reaction mass in degrees absolute.  The reaction medium preferably contains between 66.6 mol. per cent and 99.5 mol. per cent of acetic anhydride and may also contain a chlorinated aliphatic solvent for hexachlorocyclohexane such as carbon tetrachloride in an amount such that the quantity of acetic anhydride is not less than a fourth of the total of the chlorinated solvent and acetic anhydride.  The reactants are preferably used in an oxygen-free condition and the reaction carried in the presence of an inert gas such as carbon dioxide. The required chlorine concentration is controlled by titrating a sample of the reaction mixture by means of potassium iodide and thiosulphate.  Apparatus for continuous operation of the process is described with reference to drawings.  An example of the light-catalysed chlorination of benzene according to the invention in this apparatus is given.
Patent GB-109075-A (GB)
Title: Improvements in or relating to Hollow Rubber Articles.
Inventor: WADE HAROLD
IPC: B29D22/00
Filed: 1916-08-25
Abstract: 109,075. Wade, H., (Aranar Co.). Aug. 25, 1916. Vulcanizing moulds and presses.-Hollow rubber articles are vulcanized in the moulding-press shown in Fig. 1; mould plates 10, 11, with the pin plates, Fig. 6, applied so as to close passages 14, are secured to the platens 31, 46, and the casing 38 is raised against the upper platen by rams 36 and steam admitted to the chamber thus formed and to the hollow platens; after vulcanizing, the parts are cooled by admitting water. To release the finished articles, the moulds are separated in an atmosphere of compressed fluid, the pressure being gradually reduced, causing the articles to be forced gradually out of the moulds. Vulcanization may also be effected in a separate apparatus by clamping the mould plates 10, 11 together by wedges 112, Fig. 7, prior to removal.
Patent GB-793844-A (GB)
Title: Pulsed rí¬f amplifier
IPC: H03F1/04
Filed: 1956-04-20
Abstract: 793,844. Pulsing carrier frequencies. STANDARD TELEPHONES & CABLES, Ltd. (International Telephone & Telegraph Corporation). April 20, 1956, No. 12128/56. Class 40(5). A chain of pulsed R.F. amplifier stages 17-19 is anode-modulated from a pulse generator 12 in such a way that the anode of a later stage is pulsed at a later instant than that of a preceding stage, to this end a tapped delay line being connected between the pulse source 12 and the various anodes. By this means the pulse rise and decay times are preserved. The relay line may use the stage decoupling capacitors 22- 24, and the impedance of the final stage is made equal to the terminating resistance of the delay line. A cathode injected input may be used at each stage. The amplifier stages 17-19 may also each be a frequency multiplier.
Patent GB-418514-A (GB)
Title: Improvements in or relating to impact breaking machines
IPC: B02C13/282
Filed: 1933-04-26
Abstract: 418,514. Impact pulverizers. JONES, H. O., Belle Ville, Old Nazeing Road, Broxbourne, Hertfordshire. April 26, 1933, No. 12136. [Class 59.] Each anvil bar 20 surrounding the beaters 10 is provided with a bearing in one of the side walls of the casing and the other engages a bearing aperture in the opposite wall of sufficient size for the passage of the bar and each bar is provided with an adjusting head accessible from the exterior of the machine. As shown, the beaters 10 are pivoted to discs 9 mounted on a shaft 8 supported in bearings 7 attached to the bottom 4. The side walls and impact walls 15 are bolted together and may be divided in the vertical axial plane and hinge about bolts 12 so that the two parts may be tilted about the hinge pins by a right- and left-hand screw 17 engaging pivoted nuts 18 mounted on the respective half casings. The impact wall comprises the bars or hollow rods 20 which may be in sections and may be mounted on hexagonal &c. bolts 21, one end of each being secured by washers to the casings whilst the other is provided with a washer of the same diameter as the bars 20 which extends through the casing and forms a support, the hole in the wall forming an orifice through which the bars 20 may be withdrawn. Alternate ends of bars may be fixed to each side casing and the bars 20 may be square, triangular, fluted &c. and may be rotated to present fresh impact surfaces. One or more layers of rubber 26 may be arranged behind the bars to protect the casing. Doors 11 may be formed in the base.
Patent GB-915460-A (GB)
Title: A device for the mechanical sorting and collecting of veneer sheets of different lengths
IPC: B07C5/14
Filed: 1960-04-06
Abstract: 915,460. Sheet delivery apparatus. MULLER, C. H. April 6, 1960 [April 22, 1959], No. 12146/60. Class 100 (1). [Also in Group XIX] Veneer sheets on a conveyer are sorted according to length and delivered to one of three piles 30, 31, 32 (see Group XIX). To prevent damage to the sheets when they are piled, each sheet drops first of all on to a pair of rails 45, 46 (Fig. 2) lying parallel to the direction of movement of the conveyer. When the leading edge of a sheet operates a contact 20a, a circuit is made through relays 152. These actuate valves 153 so allowing pressure fluid to flow into cylinders 35, 36 through a pair of conduits 156, thus displacing pistons 154 outwardly, and with them the rails 45, 46. The veneer sheet drops on to the pile below thus releasing the contact 20a. The pistons are then moved inwardly and the rails 45, 46 are ready to receive the next sheet. The whole device may be adjusted along tubes 37, 38 to accommodate different widths of sheets. The sheets are stacked on readily removable pallets 30, 31, 32 and these rest on platforms 24, 25, 26 which are lowered by piston-and-cylinder devices 27, 28, 29 supplied with pressure fluid controlled by valves H in accordance with the respective heights of the stacks as they increase.
Patent GB-871613-A (GB)
Title: Process of producing alkali metal adducts of benzene and alkyl substituted benzene
IPC: C07C51/377
Filed: 1959-04-10
Abstract: Adducts of potassium, rubidium and caesium with benzene and alkylsubstituted benzenes (e.g. 1, 4-dipotassio-2, 5-cyclohexadiene-see Group IV(b)) may be used as polymerization catalysts for olefines such as ethylene, styrene, and butadiene.ALSO:Potassium, rubidium or caesium or an alloy of said metals with sodium is reacted with benzene or an alkyl-substituted benzene at a temperature of -10 DEG C. or less in an inert liquid medium to give an alkali metal adduct of the hydrocarbon.  The alkali metal may be used in the form of pieces or as a dispersion, preferably in iso-octane, n-octane, kerosenes, mineral spirits and other saturated paraffinic hydrocarbons.  Aliphatic monoethers having a O:C ratio of not less than 1:4 and which are not cleaved under the reaction conditions, and polyethers derived by replacing all the hydroxyl hydrogen atoms of polyhydric alcohols form suitable reaction media.  A list of specified ethers is given.  It is preferred to use an excess of aromatic hydrocarbon over the theoretical quantity to form the dialkali metal adduct.  The dialkali metal adducts may be used without isolation in synthetic procedures.  Carbonation yields salts of dihydroaromatic dicarboxylic acids e.g. benzene and potassium yield 1,4 dipotassio-2,5-cyclohexadiene, which on carbonation yields the dipotassium salt of 1,4-dihydroterephthalic acid, which may be dehydrogenated and acidified to yield terephthalic acid. Hydrogenation of the 1,4-dicarboxy-2,5-cyclohexadiene yields 1,4-dicarboyxlcyclohexane.  Reaction of the adducts with epoxides (e.g. ethylene oxide) yields glycols e.g. bis-1,4-(21-hydroxyethyl)-dihydrobenzene.  The adducts may also be reacted with reagents useful in the Grignard synthesis such as oxygen, formaldehyde, acetaldehyde, acetone, acetonitrile, propionitrile, sulphur, sulphur dioxide, sulphur trioxide, thionyl chloride, chloromethyl ether, dimethyl sulphate, methyl chloride, ethyl chloride, chlorine, cyanogen and cyanogen chloride.  The following compounds are prepared in the examples: (1) 1,4 - dicarboxy - 2,5 - cyclohexadiene, (2) dimethyl terephthalate, (6) bis-1,4-(21-hydroxyethyl)-2,5-cyclohexadiene, (7) terephthalic acid, (8) 1,4-dicarboxycyclohexane.
Patent GB-549843-A (GB)
Title: Improvements in or relating to parachutes
IPC: B64D17/34
Filed: 1941-09-22
Abstract: 549,843. Parachutes. QUILTER, J. R. C., and GREGORY, J. Sept. 22,1941. No. 12231. [Class 4] To facilitate the opening of a parachute, the apex a<SP>1</SP> of the canopy is connected to the junction c of the shroud lines by a cable f of such a length that the apex is drawn down as shown when the canopy is folded, and the pilot parachute cable e, or the static line, is connected by a series of bridle lines h to points g in a zone of the canopy which is uppermost when folded. The radius of the zone when the canopy is completely open is less than the length of the bridle lines h. To prevent the lines h from entanglement when folded they are enclosed by a conical sleeve i attached to the cable e and having an elastic mouth embracing the top of the canopy from which it is dislodged as the canopy opens. Alternatively the bridle lines h may be replaced by a cone of fabric and the sleeve i dispensed with.
Patent GB-611145-A (GB)
Title: Improvements in and relating to beams for building constructions
IPC: E04B2/30
Filed: 1946-04-23
Abstract: 611,145. Composite blocks. JOHANSSON, A. April 23, 1946, No. 12246. Convention date, April 20, 1945. [Class 145 (ii)] [Also in Group X] Wooden beams consist of two or more spaced parallel carriers 1, 2 and transverse connecting members 3 arranged between the carriers and fixed thereto by dovetail connections 4, said members being of the same height as the carriers and provided with one or more vertical grooves 5 located opposite each other, in which partition plates may be inserted. The carriers may have any cross-section, and be provided with a tongue 7 at one edge and a groove at the other for interconnection.
Patent GB-643121-A (GB)
Title: Improvements relating quick inshot valves for fluid pressure braking apparatus for railway and other vehicles
IPC: B60T15/38
Filed: 1948-05-05
Abstract: 643,121. Fluid pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and SIMMONS, A. W. May 5, 1948, No. 12319. [Class 103 (i)] A quick inshot valve of the kind used in fluid pressure brake systems for railway vehicles and the like in order to provide a rapid initial application of the brake shoes to the wheels, is so constructed as to provide a snap-action when opening as well as closing the valve 3. This is done by locating the lower engaging rib 15 of the hollow piston member 8 at the extremity of a flange 13. When the valve 3 has been shut and the member 8 is in its lowest position in engagement with the gasket 16, brake cylinder pressure seeping through the clearance between the piston 8 and sleeve 7 builds up in the chamber 14. As soon as the rib 15 of piston 48 is moved away from gasket 16 on the upward movement, the pressure acting on flange 13 is reduced to atmosphere so that there is a substantial reduction in the force compressing spring 22 and the movement upwards is accelerated.
Patent GB-162657-A (GB)
Title: Improved manufacture of plastic material from casein
Filed: 1921-04-29
Abstract: Casein is treated with formaldehyde, dried, and shaped under heat and pressure.  The casein may be coarsely or finely ground and moistened with a solution of formaldehyde, or the unground casein may be soaked in the solution.  The drying is preferably continued until no trace of free aldehyde remains.  The material is moulded at a temperature above 90 DEG  C. and a pressure exceeding 100 atmospheres.
Patent GB-1499826-A (GB)
Title: Discharge tubes
IPC: H01J61/18
Filed: 1975-03-20
Abstract: 1499826 Metal vapour lamps HANOVIA LAMPS Ltd 20 March 1975 [20 March 1974] 12414/74 Heading H1D To prevent extinction of the arc during "burn-in" on switching on a Hg vapour discharge tube 2 in lamp 1 due to high leading-edge peaks in the current wave when run in a constant wattage mode in which the lamp is supplied via a transformer with a capacitor in series with the secondary (Fig. 2, not shown), an additive to the Hg + rare gas fill comprising In and/or Ga amalgams together with HgI 2  forms GaI 3  and/or InI 3  vapours during burn-in which limits the current peaks. The amalgams are preferably proportioned Hg : Ga 100 : 1 w./w. and Hg : In 200 : 1 w./w. The I added as HgI 2  should be up to 10% less than that required stoichiometrically for the Ga + In. Cool protrusions as 3 in the tube wall encourage nucleation of deposition of the iodides on switching off. Ga and In also enhance spectral UV emission at 417À2 and 451À1 mm. respectively.
Patent GB-1277715-A (GB)
Title: An improved stirrer mill
IPC: B02C17/16
Filed: 1971-04-30
Abstract: 1277715 Stirrer-ball-mills DRAISWERKE GmbH 30 April 1971 [19 June 1970] 12432/71 Heading B2A A stirrer ball-mill comprises a vessel 1 which is mounted so as to have an infinitely-variable inclination. As described, the vessel has an end wall 10 supporting a stirrer motor 16 with a transmission 14, 15, 26, a bearing 13 and a stirrer shaft 11 which are all mounted to pivot about end journals 20 which are rotatable in machine stands 21. Adjustment is effected through approximately 180‹ by a pinion 23 meshing with a toothed segment 22. The chamber 1 is jacketted at 2 and has an outlet sieve 6. The mill may include a pump (not shown), and an additional drive to actuate the pinion 23.
Patent GB-117986-A (GB)
Title: Improvements in and relating to Phase Advancers for Dynamo-electric Machines.
IPC: H02K17/38
Filed: 1917-08-30
Abstract: 117,986. British Thomson - Houston Co., and Shuttleworth, N. Aug. 30, 1917. Alternating-current motors.-Resistances care connected in parallel with the commutating phase-advancer a of an induction motor (not shown), enabling a smaller phase advancer to be used and the speed of the main motor to be regulated.