baber/WOPTO huggingface dataset:
Patent GB-1100147-A (GB)
Title: Dehydrodimerisation process using metal oxide catalysts
IPC: C07C15/52
Filed: 1966-03-25
Abstract: Compounds of formula Y-CH2-CH2-Y where Y is phenyl, vinyl, or a radical of formula <FORM:1100147/C4-C5/1> where R is a radical having up to 10 carbon atoms, e.g. methyl or phenyl, are prepared by dehydrodimerizing a compound of formula Y-CH3 in the vapour phase at a temperature of at least 300 DEG  C. and in the presence as catalyst of one or more of lead oxide, cadmium oxide and thallium oxide.  The catalyst may be supported, e.g. on activated alumina, diatomaceous earth or firebrick, and may contain other oxides, e.g. silver oxide. The catalyst may be formed in situ, e.g. by passing oxygen over molten lead.  Oxygen may be present in the gaseous reaction mixture in amount of 3-10 vol. per cent.  The following compounds are prepared:-  1,5-Hexadiene from propylene;  2,5-Dimethyl-1,5-hexadiene from isobutylene;  Dibenzyl(1,2-diphenyl ethane) from toluene; and 2,5 - Diphenyl - 1,5 - hexadiene from alphamethyl-styrene.ALSO:Succinic acid and succinonitrile are prepared by dehydrodimerization of acetic acid and acetonitrile, respectively, in the vapour phase at a temperature of at least 300 DEG C. and in the presence as catalyst of one or more of lead oxide, cadmium oxide and thallium oxide.  The catalyst may be supported, e.g. on activated alumina, diatomaceous earth or firebrick, and may contain other oxides, e.g. silver oxide. The catalyst may be formed in situ, e.g. by passing oxygen through molten lead. Oxygen may be present in the gaseous reaction mixture in amount of 3-10 vol. percent.  In an example for preparing succinic acid, the product is conventionally esterified to diethyl succinate.
Patent GB-133843-A (GB)
IPC: B60Q1/04
Abstract: 133,843. Butlers, Ltd., and Reeves, A. Dec. 20, 1918. Vehicle lamps, attaching to lamp brackets.- The sockets on automobile &c. lamps for engaging the supporting-rods of the lamp-brackets each comprise a boss or housing manufactured by stamping, pressing, or similarly working the metal and a separate tubular part secured, preferably permanently, within the boss or housing. In one form, a boss-like part c is pressed from a metal sheet curved to conform to the lamp body, and a short length of tube d is inserted within the hollow interior of the part c and secured in position by brazing, soldering, or the equivalent, and, in some cases, by means of a rivet. The tube d may be shouldered and its reduced part inserted within a perforation in the lower horizontal part of the boss-like part c.
Patent GB-514447-A (GB)
Title: Improvements relating to shuttles of looms for weaving
IPC: D03J5/24
Filed: 1938-05-06
Abstract: 514,447. Loom shuttles. SPENCER, T., and SPENCER, A. May 6, 1938, No. 13519. [Class 142 (iii)] A shuttle is threaded by drawing the weft along a slit D, Fig. 3, in the top of the shuttle, communicating with a tunnel A in line with the shuttle peg, passing the weft round a horn E, in a cavity C, and back again through the slit, pushing it through a finger hole F in the side of the shuttle, and finally grasping the end and drawing it along a slit H, Fig. 1, communicating with the tunnel and with the cavity, into a split eye G. The split eye is formed by a coiled wire g. The Provisional Specification describes an eye formed by a split tube having an integral horn at its inner end a. tongue at its outer end cranked to lie within the bore to prevent unthreading.
Patent GB-135401-A (GB)
IPC: B24B9/14
Abstract: 135,401. Rittmeyer, H. E. March 5, 1919. Lenses and curved surfaces, grinding.-In a machine for grinding the edges of lenses of the kind in which the lenses and a templet are mounted on a rocking support to rotate together about an axis parallel to the axis of the grinding, wheel, the templet hearing against an abutment. the abutment is carried upon a support mounted to rock about the axis of the grinding-wheel and is so connected with the lens-support that it is rocked with and by the rocking movement of this. The lenses and the templet are carried by a spindle B mounted in a support C adapted to rock about an axis C<1>, and the spindle is rotated through gearing B<2> by the grinding-wheel shaft A<1>. An arm D, slotted at D<1>, is mounted to swing about the shaft A' and has formed thereon a. head D<2>, carrying an adjusting-nut H, and a clamp D<3>; the slot D' is engaged by a slidable block L embracing the spindle B and by a roller carried by a saddle E, on which is mounted the abutment J having a. face J<1> of the same radius as the grinding-wheel A. The saddle E has formed thereon a clamp E<1> adapted to slide on a spindle F which has at one end a screwed part F<1> engaging the nut H: the spindle F is also slidable in the clamp D<3>. The machine is set by means of two disks B<3> mounted on the spindle B. and by means of the clamps E<1>, D<3> and the adjusting-nut H; the rocking movement of the arm D causes the points of contact of the lenses with the grinding-wheel and of the templet with the abutment always to lie in the plane of the axes of the grinding-wheel and of curvature of the templet at its point of contact with the abutment. In a modification, Fig. 4, compensation for the wear of the grinding-wheel A is provided for by mounting on the saddle E an extension with a rack 0 on its underside engaging a pinion O<1> loosely mounted to rotate on the axis of the shaft A<1> and engaging a second rack P connected with a roller S mounted on a spindle S<1> slidable in a guide S<2>, .so that pressure of the templet on the abutment, due to a weight T, holds the roller constantly against the surface of the grinding- wheel; as this wears, the abutment moves radially inward by an amount equal to the wear.
Patent GB-135558-A (GB)
IPC: F23D11/38
Abstract: 135,558. Naylor, A. E. Nov, 13, 1918. Spray burners.-In a liquid-fuel burner, the fuel passes from the body a of the burner through inclined passages h in a flange of a cone g to a conical space f between the cone and a cup d and issues from an annular space between the cup and a flared head i formed on a spindle j which is a continuation of the apex of the cone g. A nut c holds the member d and cone g in position on the burner body and a cavity k is formed on the nut c and a slight depression on the cup d at the outer face where the spindle passes through.
Patent GB-758282-A (GB)
Title: Improvements relating to pipe couplings
IPC: F16L19/02
Filed: 1954-05-10
Abstract: 758,282. Pipe joints. GUILLOU, F. May 10, 1954 [May. 20, 1953] No. 13561/54. Class 99(1). A sealing ring 12, Fig. 2, has an internal annular or helical rib or ribs 16 which is or are pressed into a registering groove or grooves 11 in the pipe when the sealing ring is compressed thereon by interengaging coupling members such as a fitting 2, Fig. 1, and a nut 7 ; alternatively, the ring may have a recess co-operating with a part on the pipe. The ring is located by a terminal flange 15 engaging the end face of the pipe. Conical surfaces 13, 14 of the ring are engaged by a chamfer 9 of the nut and a conical bore 4 of the fitting which is adapted to receive a pipe at each end. The conical bore 4 terminates in a short cylindrical bore 5 providing a shoulder against which the flange 15 is compressed. Several forms of sealing ring are shown varying in shape, in the disposition of the conical surfaces, and in the nature and position of the ribs 16. In the form shown in Fig. 6 the nut engages a plane end surface 19 of the ring having an annular rib 22. The inner end of the ring is slit at 21 so that when the coupling is made the tongues thus formed are bent over the end of the pipe to constitute the end flange. In Fig. 9, two pipe ends 10 of different diameters are connected by rings 12, 121 fitting in flanged sockets drawn together by bolts 24, the rings having interfitting ends 25. Fig. 12 (not shown) illustrates various forms of the inter. fitting parts.
Patent GB-476685-A (GB)
Title: Improvements in or relating to machine guns and automatic small arms
IPC: F41F1/10
Filed: 1936-05-13
Abstract: 476,685. Automatic guns. VICKERSARMSTRONGS, Ltd., and HIGSON, P. R. May 13, 1936, No. 13593. [Class 92 (ii)] An automatic gun, especially for use in tanks, comprises a number of barrels 1 and a single breech-body 5, the latter being in the form of a self-contained unit which can readily be removed from one barrel and placed in position on another barrel. Further, the breech-body is fitted with locking mechanism, such as a locking nut 8, for locking it in position upon its associated barrel in a quickly detachable manner. The nut 8 shown has teeth which co-operate with teeth or projections 7 formed on the rearwardly projecting part 6 of each barrel. The barrels shown are each fitted with a block 4 and cylinder for gas operation, and are arranged side by side upon a gimbal or similar part of a mounting 2.
Patent GB-684266-A (GB)
Title: Improvements in electric heaters
IPC: F24C7/06
Filed: 1950-05-31
Abstract: 684,266. Electric air heaters and radiators. ROSS, F. A. May 31, 1951 [May 31, 1950], No. 13597/50. Class 39(iii) An electric heater comprises two vertical heating elements d oi flat rod form, each of the elements being mounted in front of a parabolic reflector c and to the rear of and parallel to a lamp p protected by a tubular air conduit n. Perforated frontal guards r and horizontal plates e, f permit passage of air which, after being heated, passes out through louvres in the upper front portion of the heater, the louvres extending progressively rearwardly above the reflectors c. The rear of the heater casing in cludes a baffle plate h spaced to provide sup plementary air exits which are said to avoid build-up of heat when the frontal exits are obstructed, e.g. by drying garments. A lamp and a tubular air conduit may be disposed between the elements d and reflectors c instead of or in addition to those shown in the drawing. The heating elements have their ends secured on slotted bracket members.
Patent GB-733221-A (GB)
Title: Improvements in or relating to magnesium base alloys
Inventor: JESSUP ALFRED CLAUDE
IPC: C22C23/00
Filed: 1950-06-02
Abstract: A magnesium-base alloy consists of 0.1-0.9 per cent Zr, at least 0.1 per cent being present in the soluble condition 1.0-6.0 per cent Th, 0.5-5.0 per cent Zn and the remainder Mg, the percentage of Th being between nine-tenths and three times the percentage of Zn but not exceeding nine-tenths of the Zn content by more than 2.75 per cent, the Th and Zn together not exceeding 10.0 per cent.  One or more of the following elements may also be present: rare earth metals up to 4, Be up to 0.1, Ca up to 0.2, Ag up to 1.0, Cu up to 1.0, Hg up to 1.0, Pb up to 1.0, Tl up to 1.0, Li up to 1.0 per cent, in which case the content of Mg is at least 85.0 per cent.  Specification 511,137 is referred to.  The Provisional Specification describes also alloys in which the maximum Zn content is 6.0 per cent and in which Ag, if present, may be up to 5.0, Cu up to 2.0, Pb up to 2.0, Tl up to 5.0, Hg up to 3.0 and Li up to 12.0 per cent.
Patent GB-422558-A (GB)
Title: Improvements in carburetters
IPC: F02M11/08
Filed: 1933-05-13
Abstract: 422,558. Spray carburetters. PORTES, E. J. A., 2, Place Ramond, BagnÞres-de- Bigorre, Hautes PyrÚnÚes, France. May 13, 1933, No. 13964. Convention date, May 13, 1932. [Class 7 (iii)] A large number of minute spraying orifices 6 are formed in a thin wall of a tubular member 5 arranged adjacent a horizontal edge of an elongated air inlet 9 to a mixing chamber 10. The air inlet and the number of orifices in action are adapted to be controlled by a sliding plate 13 loaded by a spring 14 and actuated from the accelerator pedal through a rod 15. The diameter of the holes and the thickness of the wall in which they are formed are of the order of from one to three or four millimetres. An aperture 17, Fig. 4, in the end of the plate 13, adapted to be adjusted by a plate 18, serves to expose one or more fuel outlets to provide a mixture for slow-running. The mixing chamber 10 may be provided with a valve 20 adapted to be opened through a rod 21 to admit air only for braking. A separate plate 25, Figs. 3, 4, secured by screws 27 in slots 26 may be adjusted to vary the cross-section of the air inlet for any position of the plate 13. The control edge of plate 25 may be curved as in Fig. 4. The diameters of the orifices and the distances between them and from the air slot need not be uniform. The orifices may be at different distances from the air inlet, and may be formed in two tubes placed side by side. The Specification as open to inspection under Sect. 91 states also that to improve acceleration of the engine, the plate 13 may be in two parts resiliently connected so that when the plate is moved abruptly it uncovers a number of spraying holes without appreciably increasing the air flow section, the increase of this section taking place with some delay. To facilitate starting from cold, an auxiliary closing plate may be provided adapted to act as a shield in front of the slowspeed holes. The air inlet 9 may consist of two superposed slots one of which has constant but small height above the spraying holes. The air inlet may be provided with curved surfaces to guide the air stream. A further means of facilitating acceleration is described in connection with Fig. 6 (Cancelled) in which an additional tube 30 is provided which communicates with the float chamber. Tubes 31 project into the chamber and communicate therewith through a small orifice. A tube 32 dips into each tube 31 and its delivery end is directed towards the air inlet. The orifices in the tube 5 may be inclined in different directions. This subject-matter does not appear in the Specification as accepted.
Patent GB-854890-A (GB)
Title: Improvements connected with oscillating seats
Inventor: WILLINGS EDWARD ASHLEY
IPC: A47C3/18
Filed: 1958-05-02
Abstract: 854,890. Rotatable seats. TAN-SAD CHAIR CO. (1931) Ltd. May 1, 1959 [May 2, 1958], No. 14011/58. Class 52(2) The base frame a of a rotatable oscillatory seat, instead of being fastened to floor as in the Specification 793,578 has rollers a<SP>2</SP> working in a track b resting on or secured to the floor.
Patent GB-1498864-A (GB)
Title: Manufacture of tiles
IPC: E04F13/14
Filed: 1976-04-05
Abstract: 1498864 Ceramic tiles PILKINGTON'S TILES Ltd 5 April 1976 [4 April 1975] 14025/75 Heading E1B A ceramic tile comprises a glazed body with a glazed spacing lug 1 extending substantially the full length of each side and terminating short of-the corners, enabling the tile to be used as a plain tile or as an edging tile.
Patent GB-662570-A (GB)
Title: Improved inking or damping roller trip in printing machines
IPC: B41F7/40
Filed: 1949-05-26
Abstract: 662,570. Printing-machines. RAS, M. May 26, 1949 [Nov. 22, 1948], No. 14104/49. Class 100 (ii). Inking and damping apparatus.-In an inking or damping roller trip the pivot pin 6 at each end of the roller 7 has a conical face 10 seating on, and is rigidly screwed to, a revolving part 8 carried, without play at one end of the roller and with axial play at the other end of the roller, by a ball-bearing 5 eccentrically mounted on an axle pin 3 carried eccentrically in a trip member 2 rotatable in the machine frame 1. As shown the ball-bearing 5 is clamped within the part 8 by a screwed ring, but the corresponding bearing at the other end of the roller 7 is held with limited axial play (to allow for thermal expansion of the roller in use) by a ring engaging an internal groove in the part 8. The roller is initially adjusted by rotation both of the axle 3 (by its knob 4) relative to the member 2, and of the member 2 relative to the trip sprocket 13, these settings being held respectively. by a clamp 22 and by a brake block 15 having a skewed face 16 and which grips the inner surface of the sprocket as it is moved axially by a bolt 18 rotated by a collar 20 abutting against a' washer 21. By forming the seating face of the pivot pin 6 as an internal cone 10 it is protected from damage when the roller 7 is removed from the machine.
Patent GB-311280-A (GB)
Title: Improvements in or relating to the hydrogenation of the gases derived from the low temperature distillation of solid fuels
IPC: C10G47/00
Filed: 1929-05-07
Abstract: 311,280. Compagnie Internationale pour la Fabrication des Essences et Petroles. May 8, 1928, [Convention date]. Materials for making gas; condensing plant. - In the low temperature distillation of coal, lignite, shale, &c. and subsequent production by catalysis of liquid fuels from the distillation gases the whole of the water content of the fuel is removed either from the fuel or from the gases before the catalytic treatment with the exception of the water of constitution. If the fuel is not pre-dessicated the gases from a retort A, are passed to a, separator B, e.g. an electrical precipitator maintained at such a temperature that tar and a quantity of water equal to the water of constitution are condensed. The gases with remaining water vapour are passed through a condenser C to remove this water and some tar oil and a reheater C<1> into a purifier E, E<1>, maintained at about 350-400‹ C., and thence into catalytic reaction chambers F. Tar from the separator B is vaporized in a reheater D and mixed with the gases in the purifiers. When the gases have a slight content of hydrogen sulphide the revaporized tar may be led direct to the catalytic chambers, the gases being purified separately. Vapours from the chambers F are condensed in a receiver H and light constituents absorbed in apparatus I containing activated carbon or other material. The hydrogenating gases may comprise wholly or in part the resiresidual gases issuing from a purifier-separator g<1>.
Patent GB-909612-A (GB)
Title: Loading devices for tire handling and curing presses
IPC: B29D30/06
Filed: 1959-04-22
Abstract: The subject-matter of this Specification is contained in Specification 909,611 but the claims relate to the loading device.
Patent GB-575157-A (GB)
Title: Improvements relating to liquid projection and injection nozzles
IPC: F02M61/06
Filed: 1943-08-31
Abstract: 575,157. Fuel injectors. FRASER, R.P. Aug. 31, 1943, No. 14207. [Class 7 (iii)] [Also in Group: XXIX] A fuel injector comprises a nozzle body 1 with a conical valve or pintle 4 raised by fuel pressure in a chamber 2, after air pressure in a chamber 5 has been released, to allow fuel to issue through a conical outlet 3. The valve 4 may have a flared end 4b which projects well beyond the end of the nozzle body 1. A spring may supplement the air pressure acting on the back of the valve 4. In the system shown in Fig. 5, injectors 7 ... 10 of a Diesel engine are supplied with fuel from a chamber 13 subjected to the air pressure and a rotary distributer 16 is provided to allow the air pressure from the back of each valve to exhaust.
Patent GB-491839-A (GB)
Title: Improvements in or relating to apparatus for use in separating and sorting materials
IPC: B03B5/66
Filed: 1937-03-04
Abstract: 491,839. Separating solid materials. WITHERS, J. S. (Battelle Memorial Institute) March 4, 1937, No. 14346/38. Divided out of 491,791. [Class 82 (ii)] Apparatus for separating materials such as coal and ore has wedge shaped pockets into which the materials are caused to flow and to become compacted by adjustment of the apical angles of the pockets, means being also provided for adjusting the apical outlets from the pockets. In Fig. 1, a launder is formed of a series of units comprising a base 1 and end walls 2, 3, with rearwardly and upwardly inclined extensions 4, 5. Screen plates 7, 6, extend forwardly from extension 5, and upward currents of water, which may vary, are supplied in compartments 8 below the screens by independently regulated pipes 9 with gauges 10 ; inclined floors 12 of the compartments lead to drain cocks 11. Each unit has an outlet 13 controlled by an angularly adjustable gate 14, with holding means 14b and an adjustable plate 16, and by a plate 17, with adjustable extension 19, oscillated by an eccentric 22 and adjustable crank 20 ; a rubber apron 17a may prevent material falling behind the plate 17. Material discharged from each or several outlets 13 passes to an inclined pipe 26 containing a screw conveyer and extending above the level of the material, or below the level if a flow of liquid is desired in outlet 13. Transparent wall sections 62 facilitate control. The material to be sorted and a minimum of water are supplied at the upper end of the launder, and the lighter material is discharged at the lower end of the launder into the boot of an elevator. The launder may be supported at its ends on adjustable means to vary its slope, or further means may be provided intermediately to give different slopes at different parts of the launder. In Fig. 6, the oscillating plate 17 is replaced by a vaned wheel 50 rotated step by step by ratchet means 52, 53, 54, and housed between a fixed plate 55 and a plate 57 pivoted at 60 and provided with a counterweight 61. Overflow gates may be provided at intervals along the launder. The units may be spaced and connected by launder sections which may be provided with upward currents of water. Specification 491,791 is referred to.
Patent GB-542059-A (GB)
Title: Improvements relating to electrical fuses
IPC: H01H85/30
Filed: 1940-09-20
Abstract: 542,059. Fusible cut-outs. MIDLAND ELECTRIC MANUFACTURING CO., Ltd., and VICARY, A. W. Sept. 20, 1940, No. 14405. [Class 38 (i) ] An indicator for a bridge-carrier fuse comprises a bead g or the like held in a recess f on the exterior of the body a of the fuse by a thin wire e lying in a groove d and attached at its ends to the fuse element or to the end contacts c of the carrier. When the fuse blows the wire e also fuses releasing the bead &c. The wire e may be secured by cement in the groove d of the bead being left free.
Patent GB-900809-A (GB)
Title: Improvements in or relating to starters for fluorescent lamps
Inventor: COSNUAU BERNARD
IPC: H05B41/06
Filed: 1960-04-25
Abstract: 900,809. Supply systems for space discharge apparatus. FLUOTECHNIC. April 25, 1960, No. 14437/60. Class 38 (4). In a fluorescent lamp starter comprising a thermal switch 1 and a ballast impedance 3, a non-linear resistor 2 is connected in series with and between the lamp filaments. Initially, with almost all the supply voltage across the resistor its resistance is low so that the lamp filaments and the thermal switch heat up. When the lamp is running the resistance increases due to the decreased voltage across it so that the filament current is negligible, while the thermal switch re-closes for further operations. The switch may comprise a bimetal strip or a wire which expands upon heating, and it may be heated from a secondary winding on the ballast impedance.