baber/WOPTO huggingface dataset:
Patent GB-369864-A (GB)
Title: Improvements in or relating to change-speed gear devices for motor vehicles
Filed: 1931-09-03
Abstract: 369,864. Controlling change speed gearing. MAYBACH-MOTORENBAU GES., Friedrichshafen, Lake Constance, Germany. Sept. 3, 1931, No. 24704. Convention date, Sept. 8, 1930. [Class 80 (ii).] In changing upon a vehicle from a higher to a lower speed involving the shifting of a double dog clutch 14, 16 the teeth of which have bevelled end faces, the engine throttle 29 is opened automatically until the clutch tooth engagement is completed. There is no engine clutch disengagement. The two-speed gear shown is in series with another change-speed gear, not shown, and operates as described in Specification 298,186, [Class 80 (ii), Gearing, Variable-speed &c.], to yield a direct drive and an overdrive. The clutch 14, 16 is splined on a driving-shaft 6, and a pinion 5 is fast on a driven shaft 9. A control lever 11 is connected to a striking lever 13 by a toggle spring 12 only, which shifts the double clutch only after the load has been taken off the clutch teeth by a closing of the throttle 29 by the driver allowing the accelerator pedal 32 to rise. In changing from direct drive to overdrive there is no difficulty because the clutch half 14 in driving connection with the engine loses speed more quickly than a clutch half 15 in driving connection through the gear train with the road wheels as the drive of the engine is stopped by the closing of the throttle. The slipping into full engagement after ratcheting to synchronize is natural. In changing down into direct drive, as when the vehicle is descending a bill, the full engagement would never take place because the faster - moving cardriven clutch half 17 is accelerating. To enable the engine-driven clutch half 16 to overtake the half 17, the engine throttle 29 is opened. The lever 11 having been moved to the right so that the spring 12 pulls at the striker 13, on raising the pedal 32 to unload the clutch 14, 15, the double clutch 16, 14 shoots across carrying with it by a lever 18 a slide valve 20. In the position of ratcheting engagement of the ends of the teeth 16, 17 shown in Fig. 2, a port 21 in the valve 20 registers with a pipe 22 leading to the induction pipe 36 of the engine. Suction is thus passed on through the valve 20 and a pipe 23 to a cylinder 24 causing a piston 25 to rise and through a linkage 28 to open the throttle 29. When the speeded-up clutch half 16 snaps in fully, the valve 20 is shot further to the position of Fig. 3, whereby the port 21 connects the cylinder 24 to the atmosphere and the throttle 29 returns to its dependence on the pedal 32. A spring 35 allows the suction to act independently of the pedal. On returning to the overdrive, the port 21 shoots past the end of the pipe 22 so that the suction does not act
Patent GB-1176119-A (GB)
Title: Semiconductor Device Having Improved Insulation.
IPC: H01L23/051
Filed: 1968-05-23
Abstract: 1,176,119. Semi-conductor devices. COMPAGNIE GENERALE D'ELECTRICITE. 23 May, 1968 [24 May, 1967], No. 24780/68. Heading H1K. A method of increasing the breakdown voltage between the electrodes 11, 12 of a semiconductor element 13, where the electrodes are separated by a thin insulation 14, is to apply a thicker insulation 15 over and completely covering the outside surface of the thin insulation and the projecting rims 11a, 12a of the electrodes. The insulation 14 may be of ceramics or epoxy resin and the outer insulation 15, which may have a corrugated outer surface, Fig. 2, (not shown), may be of the same material as insulation 14 or of a polymerized elastomer. The outer surface of insulation 14 may be roughened prior to the application of insulation 15 to facilitate adherence.
Patent GB-877299-A (GB)
Title: Roll film cassette
IPC: G03B17/30
Filed: 1958-08-01
Abstract: 877,299. Roll-film cassettes. AGFA A. G. Aug. 1, 1958 [Aug. 31, 1957], No. 24944/58. Class 98(1) Each circular rim of the cylindrical cassette shell 5 has an annular depression 7 and outwardly turned lip-portions 9 between which internal projections 4 on the skirt 3 of each end cap are passed and under which they engage on turning the end cap. Preferably, each end cap is locked on the shell by the wedging engagement of one projection 4 with a widened lip-portion 10.
Patent GB-1342000-A (GB)
Title: Process for the preparation of block polymers
IPC: C08G61/08
Filed: 1971-04-19
Abstract: 1342000 Preparation of block copolymers BAYER AG 19 April 1971 [9 April 1970] 24972/71 Heading C3P Block copolymers are prepared by reacting together two or more polymers each containing C = C double bonds using a catalyst comprising (a) a compound of a metal of Group Va or VIa; (b) an organometallic compound of a metal of Group Ia, IIa or IIIb, or a trialkoxide of a metal of Group IIIb; and optionally (c) a co-catalyst such as a 1,2-haloalcohol, a halophenol or an epoxide of formula where X is hydrogen, alkyl, aryl or aralkyl and Y is hydrogen, alkyl, aryl, aralkyl, -CH 2 Hal or -CH 2 OR (R = alkyl or aryl). In one modification of the process one of the starting materials is a polyalkenamer prepared by polymerization of a cycloalkene in situ using a catalyst as defined above, which is then treated with the second polymer without deactivation of the catalyst. Examples describe the preparation of block copolymers from trans-polypentenamer and various polybutadienes, or a butadienestyrene block copolymer, using a catalyst derived from Et 2 AlCl and the reaction product of WCl 6  with epichlorhydrin. The preparation of the polypentenamer and of a predominantly 1,2- polybutadiene is also described.
Patent GB-216429-A (GB)
Title: Tire mold
IPC: B29C33/42
Filed: 1923-04-24
Abstract: 216,429. Rett, C. E., and Anderson, G. S. April 24, 1923. Moulding wheel tyres. -Relates to moulds for pressing and vulcanizing solid tyres of the type described in Specification 183,744, and particularly applicable to the method described in Specification 216,300, and comprises mould halves 1, 2 abutting peripherally and each formed with an inner wall 7 adapted to engage the side of the rim 8, and an annular groove 9 with bevelled surface 10 adapted to engage the rim flange 11 to centre the rim in the mould. The member 1 carries dowel pins 16 engaging corresponding holes in the member 2. Core pins 4 are permanently attached to the member 1 by shanks 5 riveted at 6 and engage corresponding holes 18 in the member 2. The member 2 is furnished with steam-circulating grooves 17 extending approximately tangentially.
Patent GB-411809-A (GB)
Title: Underframe for vehicles
IPC: B60G3/01
Filed: 1932-09-08
Abstract: 411,809. Motor-vehicle frames with axle gnideways. PROUVOST, J. B., 222, Rue de Lille, Wasquehal, LEFEBVRE, F., 155, Rue Jules-Guesde, Croix, and DESMURS, C., 106, Boulevard de la Republique, La Madeleine, all in Nord, France. Sept. 8, 1932, No. 25015. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 20, 1933]. [Class 79 (iv).] In a vehicle suspension, the axle ends move in guides 10, secured at the side of an aperture 4 to the web 1 of a girder forming a longitudinal member of the vehicle frame, against the action of pairs of laminated springs shackled to lugs situated in pairs one on each side of the web 1. In a modification one end of each spring is articulated on the web the other end being shackled thereto, play being allowed in the guide 10.
Patent GB-1263497-A (GB)
Title: Alpha olefin and diene polymerization catalyst
Inventor: COZEWITH CHARLES
IPC: C08F10/00
Filed: 1969-05-16
Abstract: 1,263,497. Polymerisation catalysts. ESSO RESEARCH & ENG. CO. 16 May, 1969, No. 25031/69. Heading B1E. [Also in Division C3] A polymerisation catalyst system comprises a solid hydrocarbon soluble adduct of a titanium halide of formula Ti.Y a  in which Y is halogen and a=2 or 3, a Lewis base and an organo aluminium compound, the mole ratio of titanium halide to Lewis base being 1:2 to 1:3 and the Lewis base being a methyl or dimethyl substituted tetrahydrofuran or a methyl or dimethyl substituted tetrahydrothiophene. The catalyst may be made by (a) forming in the substantial absence of oxygen and moisture a complex of a titanium sub-halide and a Lewis base by mixing together in the presence of a solvent (b) adding the organo aluminium compound thereto. Polymerisation of α olefins, e.g. ethylene or propylene and con- α olefins, e.g. ethylene or propylene and conjugated dienes, e.g. butadiene, isoprene or piperylene may be effected in the presence of such catalysts. Examples describe the preparation of cis and trans polybutadiene, polyethylene, copolymers of ethylene and propylene and polypiperylene.
Patent GB-259603-A (GB)
Title: An improved shock absorber
IPC: F16F9/04
Filed: 1926-10-08
Abstract: 259,603. Monge, G. de. Oct. 8, 1925, [Convention date]. Pneumatic springs; fluid - friction vibrationdampers.-The reactions of the usual suspension springs of a vehicle are damped by an apparatus comprising two relatively movable elements 5 having between them a chamber formed by a bellows from which air is freely expelled through a one-way valve 7 when the elements approach one another, a partial vacuum being formed in the chamber when the elements separate and small openings being provided to allow air to re-enter slowly. The bellows may be strengthened by rings 11. The small openings 12 may be provided in the valve 7.
Patent GB-1379266-A (GB)
Title: Wiring device mounting frame
IPC: H02G3/18
Filed: 1972-05-30
Abstract: 1379266 Distribution boxes; two part couplings J IZUMI 30 May 1972 [9 June 1971] 25176/72 Heading H2E An insulating block 16 for releasably mounting wiring devices such as a lamp 24, switch 26 and outlet 28, in a plurality of positions 18, 20, 24 comprises at least two conductors 50, 52 each having a terminal means 32, 34 for connection to an A.C. supply and extending continuously between two ends of the block through each of the positions, and a plurality of additional conductors 56-66 having a respective terminal 36-46 with at least one further conductor disposed at each position. The block is located within a box 12 by screws through holes 96 and each position comprises four slots 70-86 through which contacts of the devices enter to mate with one or other of the conductors 32, 34, 56-66. The additional conductors 56-66 are provided for connections to earth or other components such as a lamp 120 or switch 122, as also are additional terminals 32a-32d, 34a-34d of the conductors 50, 52. A cover plate 30 retains the devices 24-28 in position.
Patent GB-978257-A (GB)
Title: Two-speed rotary hydraulic motors
IPC: F04C14/00
Filed: 1963-06-25
Abstract: 978,257. Rotary hydraulic motors. COMMERCIAL SHEARING & STAMPING CO. June 25, 1963 [Jan. 31, 1963], No. 25205/63. Heading F1F. A two-speed rotary hydraulic motor comprises a pair of motors 10, 12, Fig. 2, having driven elements, which may be vane type rotors, or of gear type, mounted on a common shaft 13 with a bearing carrier 11 therebetween which houses a first spool valve 18, Fig. 1, a second spool valve 21 and check valves 24, 26, 28. In operation, a direction control valve 40, Fig. 3, connects a source of pressure liquid through a line 43 with the inlet port 41 to the first motor 10 and through a branch 14 to a passage 16 interconnecting the right-hand ends of the valves 18, 21. The valve 18 is thence pushed leftwardly and some of the liquid discharged from the motor 10 and passing through the return line 46 and a branch 15 therefrom passes the open left-hand land of the valve 18 to a passage 25, past the check valve 26 and through a passage 23 to the inlet port 42 of the second motor 12 so that a small quantity of liquid circulates through this motor to keep it lubricated. The motor then operates at high speed and low torque. If the load on motor 10 increases the pressure in the passage 16 increases to move the valve 20 leftwardly to connect the passage 16 with a passage 29 and the passage 23 to supply the second motor 12 with pressure liquid. The check valve 26 then closing and the check valve 24 opening. The motor then operates at low speed and high torque. The two ends of the bore in which the spool of the valve 20 slides are inter-connected by a passage 27 which through the normally closed check valves 28 maintains low pressure on the ends of the valve 20. By operation of the valve 40 the flow of pressure liquid to the motors may be reversed to reverse the rotational direction of the motors. Check valves 24, 26 associated with the branch 15 are not shown in Fig. 1.
Patent GB-246411-A (GB)
Title: Illuminating devices for hand bags
IPC: B63B25/08
Filed: 1925-10-09
Abstract: 246,411. McKee, J., and McKee, A. E. A. Oct. 9, 1925. Battery lamps. - Relates to a holder for a lamp bulb and a battery therefor, provided with clips to enable it to be attached to one of the partitions of a hand bag. The device comprises a holder of metal provided with clips B, Fig. 1, for attachment to the bag, a reflector A, and fitting C for the lamp, clips D, D<1>, D<2>, Fig. 2, for holding the battery in place, and a lever switch E to connect the body of the holder to the negative battery terminal F, the positive terminal H being connected to the rear terminal of the lamp.
Patent GB-1136134-A (GB)
Title: Improvements in interior rear-view mirrors and lamps for vehicles
Inventor: MCKERCHAR JOHN STEWART
IPC: B60Q3/02
Filed: 1966-06-07
Abstract: 1,136,134. Combined rear view mirror and lamp. WINGARD Ltd. 25 May, 1967 [7 June, 1966], No. 25306/66. Heading B7J. [Also in Division F4] A combined interior rear-view mirror and lamp for vehicles comprises a plastics base 10 adapted to be fixed to the vehicle and formed with a socket 14 to take the ball-end 15 of a mirror support 9, a transparent or translucent cover 16 fitting over the socket to secure the ball and said cover housing a bulb 13 carried by mounting strips 12. In a modification the mirror is housed in the base and the assembly support by the support 9.
Patent GB-877520-A (GB)
Title: Decorative laminates
Inventor: PHIPPS DOUGLAS
IPC: C03C17/02
Filed: 1959-07-23
Abstract: 877,520. Decorative glass laminates. CIBA (A. R.L.) Ltd. July 6, 1960 [July 23, 1959], No. 25336/59. Class 140. [Also in Group XV] Decorative glass laminates are produced by adhesively laminating together two glass sheets of normal impact resistance or two sheets of another transparent or translucent material which will not crack under normal impact, e.g. a polystyrene, polymethyl methacrylate, a polyester, or a polyalkylene, with an intervening sheet of toughened glass, and thereafter generating cracks throughout the body of the toughened glass. The toughened glass interlayer may be exposed at some point and the generation of cracks induced by subjection of that point to impact or chipping. The adhesive may be an epoxide resin, a polyvinyl acetal, or a polyester, may contain a pigment or dye, and may be rendered more flexible by the addition of an organic polysulphide. Alternatively, transparent sheets of cellulose acetate or nylon may be interposed between the outer layers of the laminate and the sheet of toughened glass. Where the laminate is non-planar, the sheets may be shaped during manufacture and before cracking the toughened glass. In an example, two sheets of window glass are bonded to opposite sides of a sheet of toughened glass with a liquid epoxide resin containing triethylenetetramine and " Thiokol " (Registered Trade Mark) LP3. After assembly, the laminate was maintained at room temperature for 17 hours to allow the adhesive to cure, and the toughened glass is then chipped at an exposed edge. The laminate may contain additional layers.
Patent GB-430322-A (GB)
Title: Structural plates for producing walls, ceilings, coverings and so forth
IPC: E04C2/06
Filed: 1933-09-14
Abstract: 430,322. Bricks. HELFENSTEIN, C., 28, Ladelistrasse, Lucerne, Switzerland. Sept. 14, 1933, Nos. 25434 and 25435. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 16, 1934]. [Class 87 (i)] A structural plate, Fig. 3, for the production of walls, ceilings, and the like, consists of a base 3 of cement, gypsum magnesite or bitumen, which may be mixed with sawdust, cinders, brick dust, or the like, and have a reinforcement 1 of crossed rush stalks 1. Cavities may be provided in the base materials. The reinforcements 1 are tied together by wires 2. Three layers of reinforcement may be used. In a modification, Fig. 4, channels 4 may run parallel with the central reinforcing layer which is of corrugated form. In another modification, Fig. 5, the structural plate has reinforcing wires between layers of reinforcement and is bent to form an arch.
Patent GB-1182615-A (GB)
Title: Improvements in or relating to the Separation of Mixtures of Gases
Inventor: STOKLOSINSKI ROMAN
IPC: F25J3/04
Filed: 1967-06-01
Abstract: 1,182,615. Gas mixture separation process. R. STOKLOSINSKI. 1 June, 1967, No. 25441/67. Heading F4P. A binary gas mixture e.g., air rectification column 24 has at least two superposed reboilers 26, 27 heated respectively by a portion of the air feed and by at least a portion of nitrogen effluent fraction, and the column also has at least two superposed condensers 28, 29 located above the highest reboiler 27 and at least one of which condensers is cooled by at least a portion of the liquid oxygen bottoms fraction. In operation feed air at just above atmospheric pressure having been freed of water vapour and carbon dioxide at 20 and cooled to dew point in an exchanger 22 is fed to about the mid-point of the column 24. Nitrogen effluent having been warmed in exchanger 22 is in part directed through purifiers 20 and in part to a compressor 30 by which it is forced through exchanger 22 and the reboiler 27 where it is liquefied after which it is expanded at a valve 34 and returned to the column as reflux. Air for heating reboiler 26 is withdrawn from the feed stream at the warm end of exchanger 22, compressed at 32, cooled in exchanger 22 and after being liquefied in said reboiler 26 is expanded at 36 and fed to the column as reflux. As shown both condensers 28, 29 are cooled by liquid oxygen bottoms expanded at valves 42, 40 and the resulting oxygen vapour having been warmed in exchanger 22 is compressed at 31 and discharged as product. Build-up of impurities in the boiling oxygen in condensers .'28, 29 is avoided by withdrawing a portion thereof : by a pump 44, purifying at 46 and returning -to the condensers.
Patent GB-343874-A (GB)
Title: Apparatus for automatically testing gases
IPC: G01N7/06
Filed: 1929-08-21
Abstract: <PICT:0343874/III/1> In automatic volumetric gas analysis apparatus in which a reaction gas acts on several gases in the mixture to be tested, e.g. in the determination of residual oxygen in flue gases by the addition of hydrogen, the reaction chamber contains a catalyst and the temperature of the chamber is maintained between two limits, e.g. 150-350 DEG  C., of which the lower one is determined by the commencement of the main reaction, and the upper one by the commencement of undesirable subsidiary reactions.  In the apparatus shown, the gas to be tested is drawn in from a to the reservoir c, and the reaction gas, e.g. hydrogen or hydrogen-containing gases such as coke oven gas, through k to the reservoir h by lowering vessel d which acts as a pump.  On the upward stroke of d, the gases in c and h are forced into the mixing vessel n and thence through the reaction chamber q, heated electrically and kept between 200 and 300 DEG  C. approximately.  The change of volume is recorded in known manner by the bell s.  By means of the tubes r and w, and the liquid seal v, the residual gases are expelled by the pump d.
Patent GB-443300-A (GB)
Title: The preparation of a new barbituric acid and salts thereof
Filed: 1934-09-04
Abstract: C - Ethyl - C<1> - 2 - ethylhexyl - barbituric acid is prepared by treating a 2-ethylhexyl-ethyl-malonic ester or halide with urea, or by hydrolyzing the reaction product of a 2 - ethylhexyl - ethyl - cyanacetic ester with urea.  The acid may be converted into its alkali metal, ammonium and amine salts. Examples of each method of preparing the acid are given and the production of the sodium, potassium, lithium, ammonium, mono- and di-methylamine and mono- and di-ethylamine salts is described. Specifications 364,041 and 365,135 are referred to.  Malonic esters and halides; cyanacetic esters.--2 - Ethylhexyl - ethyl - malonic ethyl ester is obtained by the interaction of ethyl diethyl malonate with a 2-ethylhexyl halide or the p-toluenesulphonate in the presence of sodium alcoholate. 2-Ethyl-hexyl-ethyl-malonyl chloride is prepared by hydrolyzing the corresponding malonic ester and heating the resulting acid with thionyl chloride.  The 2-ethyl-hexyl-ethyl-cyanacetic ethyl ester is obtained from ethyl ethylcyanacetate by the same treatment as the malonic ester.  2 - Ethylhexanol is prepared by hydrogenating n-butyl-ethyl-malonic ester under pressure in the presence of a nickel catalyst.  Its p-toluenesulphonate results from treatment with the sulphonyl chloride.  2 - Ethylhexyl halides are prepared from 2-ethylhexanol by treatment with thionyl chloride, or with sodium bromide and aqueous sulphuric acid, or with iodine and red phosphorus.
Patent GB-424480-A (GB)
Title: Improvements in circuit arrangements comprising a gasfilled electric discharge tube
IPC: H05B41/04
Filed: 1934-09-05
Abstract: 424,480. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Sept. 5, 1934, No. 25569. Convention date, Sept. 15, 1933. [Class 39 (i)] In a circuit comprising a gas or vapour electric discharge tube in series with an inductance, a switch is provided to connect a capacity in parallel to the tube for starting the discharge and in parallel to both the tube and inductance for phase compensation after the discharge has started. The switch may be operated automatically by the leakage field of the inductance, or by a bimetallic strip heated by the discharge current. The capacity may comprise at least two condensers 11, 12 and the switch 13, which is shown as operated electromagnetically by a coil 20 in series with the inductance 2 and the neon lamp 1, then connects the condensers in series with each other across the tube 1 forming a resonant circuit for starting the discharge and in parallel to each other across the supply 3, 4 after starting.
Patent GB-997528-A (GB)
Title: Improvements in lawn mowers
Inventor: KLINGOFSTRIOM SVANTE
IPC: A01D43/077
Filed: 1964-06-20
Abstract: 997,528. Rotary-scythe mowers. FLYMO A.B. June 20, 1964, No. 25598/64. Heading A1F. In a lawn-mower of the kind comprising a power-driven vertical shaft 7 carrying a rotary-scythe cutter 15 and an air-impeller 12, the cutter and impeller being surrounded by a housing 1 with a cut-grass discharge shoot 16, the lower boundary 6 of the housing is continuous and uniplanar so as to restrict the escape of air between housing and ground during operation. As shown in Fig. 2 the mover is wheel-less and rests upon an air-cushion produced by the impeller 12 which has an air-intake 5 at the top of the housing. The shoot 16 curves rearwardly and upwardly and receives a gauze bag on its rear end. Removable shims 9, 10 are arranged on. the. shaft 7 for adjusting the cutting height. In a modification, (Fig. 3, not shown) the housing is wheeled and a pendant rubber skirt seals the area between the housing and the ground, so that the weight of the machine is reduced although the machine is not fully supported. Specification 929,610 is referred to.
Patent GB-1279593-A (GB)
Title: Keyboard for electrically controlled machines
Inventor: VANDERHEYDEN KLAUS
IPC: H01H13/70
Filed: 1970-05-28
Abstract: 1279593 Keyboards KOMBINAT SCHALTELEKTRONIK VEB 28 May 1970 25619/70 Heading B6F The keys of a keyboard are each mounted for sliding motion in lugs 1<SP>1</SP> of a respective microswitch 2.