baber/WOPTO huggingface dataset:
Patent GB-794211-A (GB)
Title: Improvements in and relating to motor cycle rear wheel suspension systems
IPC: B62J13/04
Filed: 1955-07-28
Abstract: 794,211. Spring frames for motor-cycles; chain-cases. JUTTING, T. March 20, 1956 [July 28, 1955], No. 21804/55. Classes 136(1) and 136(3) [Also in Group XXXII] In a motor-cycle rear wheel suspension system embodying a rear fork member d pivoted about a horizontal axis c in the region of the gear box and carrying the rear wheel axle e movement of the fork member d is spring-controlled and constrained to movement in a longitudinal plane fixed in relation to the frame by two cylinders j rigid with the frame and containing and supporting rebound springs s. A pair of bolts g project laterally from each side of the members d and are each encircled by a pair of blocks h which may rotate about the cylindrical surface of the bolts. The blocks h have flat surfaces h<SP>1</SP>, h<SP>2</SP>, Each surface h<SP>1</SP> engages a piston member i mounted to reciprocate within a cylinder j which is slotted to enable the bolt g to move up and down. The lower flat surfaces h<SP>2</SP> engage spring cup members k which are slidable in housings n rigidly secured to the cylinders j. The members k are integral with the pistons i. Rotatable eccentric members q are provided on fixed spindles r at the tops of the cylinders j. The members q have a plurality of flats to bear on spring abutment plates e and may be rotated and locked in alternative positions to vary the compression supplied to the springs s. The motor cycle saddle is pivoted to the frame and is connected by a spring link v to a lever w, the remote end of which is connected by a link x to the fork member d so that the saddle movements are co-ordinated with the rear wheel spindle movements. Lubricant may be passed through grooves y in the piston member i. A chain-case formed in two relatively movable parts 2, 3 is provided for the chain 4 connecting the driving sprocket 5 with the wheel sprocket 6, telescopic means being shown at 7, 8. Four guide pins 9, which are rigid with the rear portions 2 of the chain case, slide in guides 8 in the forward part 3 which rocks about the axis of the driving sprocket 5. In an alternative arrangement shown in Fig. 11, the two portions 2, 3 of the casing are mutually rigid but are adjustable in position by means of slots 12. The front portion 3 is rockable and slidable upon a freely rotatable ring 20 on a flanged plate 13 attached to the gear box. In a further alternative arrangement shown in Fig. 13 the forward end 3 is supported by a pin 16 carried on a lug 17 rigid with the end 3. The pin 16 is supported in a curved slot 18 in a part 19 rigid with the gear box.
Patent GB-441866-A (GB)
Title: Improvements in and connected with the control of the flight of projectiles
IPC: F41G7/26
Filed: 1934-07-25
Abstract: 441,866. Automatic control of a body in motion. SANDOR, N., 33, Hook Road, Surbiton, Surrey. July 25, 1934, No. 21812. [Class 38 (iv)] A projectile 1 is provided with four lightsensitive cells 2 controlling four vanes 3, for example, by means of valve amplifying systems S and electromagnets M, to maintain the projectile in the central umbra of an annulus of searchlight rays projected from the gun station towards an aircraft target.
Patent GB-423308-A (GB)
Title: Improvements in and relating to the manufacture of rubber
IPC: C08L7/00
Filed: 1933-08-03
Abstract: Rubber compositions containing large proportions, e.g. 30-60 per cent by weight, of cork, are vulcanized with the aid of an organic accelerator in the presence of a small proportion (0,3-1 per cent), of piperidine, dipiperidyl, triethanolamine, dimethylamine, derivatives of these such as piperidine tartrate, piperidine acid stearate, and aldehyde condensation products of piperidine.  The latter counteracts the retarding of vulcanization due to the cork. The reaction products of these bodies with accelerators, particularly the addition product of zinc pentamethylene dithiocarbamate and piperidine may retain both properties.  Accelerators specified are dithiocarbamates, thiuram mono and disulphides, mercaptoarylthiazoles.  The mix is vulcanizable with a small percentage of sulphur, of the order of 1/2 -1 per cent, whereby bloom may be prevented. Specification 376,318 is referred to.
Patent GB-740935-A (GB)
Title: Improvements in or relating to fluorocarbon bromides
IPC: C07C17/093
Filed: 1953-08-07
Abstract: An improvement in or modification of the method of making fluorocarbon bromides of the parent Specification comprises heating <FORM:0740935/IV(a)/1> to decomposition temperature where Rf is a perfluorocarbon radical.  In examples: a mixture of C3F7Br and unconverted C3F7COBr is obtained by passing C3F7COBr through a heated, carbon-lined tube and treating the product with mercury to remove free bromine (I); and CF3Br is obtained similarly from CF3COBr (II).  Other acid bromides which can be converted into the corresponding fluorocarbon bromide include C4F9COBr, perfluorohexylcarboxylic acid bromide, perfluoro octanoic acid bromide and perfluorodecanoic acid bromide.  Reactors may be of steel, graphite, glass, porcelain and platinum.  Trifluoroacetyl bromide is obtained by passing trifluoroacetyl fluoride over a mixture of calcium bromide and sodium fluoride in a heated carbon tube.  Perfluorobutyryl bromide is obtained by (a) recting perfluorobutyric acid, red phosphorus and bromine; (b) heating perfluorobutyric acid anhydride and sodium bromide under reflux and (c) heating perfluorobutyryl fluoride with aluminium bromide and activated carbon in a sealed ampoule.
Patent GB-1528518-A (GB)
Title: Leveller doors for coke ovens
IPC: C10B25/06
Filed: 1976-05-26
Abstract: 1528518 Leveller doors P C CAMPANA 26 May 1976 [16 Sept 1975] 21910/76 Heading C5E A leveller door for a coke oven comprises a mild steel plate having sealing means 120 extending generally peripherally around the inner face 58, the means including a knife-like sealing edge 126 extending perpendicularly to the inner face, and a sealing-edge-retaining groove 124, the groove 124 having a lesser depth, as shown in Fig. 5, at least adjacent the corner points 68, 74 of the door. The sealing edge is bowed outwardly from the door between the points of lesser depth. On closing of the door, the sealing edge is forced into the groove and this accommodates thermal distortions of the door.
Patent GB-410080-A (GB)
Title: Improvements in or relating to sealing or locking devices
IPC: A44B19/14
Filed: 1932-08-04
Abstract: 410,080. Fastenings. NAGY, O., 3, Berlini-Ter, Budapest. Aug. 4, 1932, No. 21921. Void [Abridged as open to inspection under Sect 91 of the Acts, Aug. 6, 1932]. [Class 44.] A fastening for effecting an air- or liquidtight joint applicable to fastening wearing- apparel, air-cushions, &c. consists of two resilient members, provided with smooth interengaging surfaces, which engage one another in tongue and groove manner, the cavity of the groove being smaller than the tongue when the fastening is open. In one form, Fig. 3, a tongue portion consisting of a tube 7 permanently secured to an outer part 6 engages in a groove portion 6a and mechanical connection of the parts is made by hook-like projections 8 on the groove 6a engaging over corresponding projections on the tongue ; sealing is effected by expanding the tube 7 by inflation through a valve or by the insertion of a cylindrical body. In a modification, the tube 7 is integral with the part 6 and the projections 8 are replaced by ribs each having a portion of substantially semi-circular crosssection to engage a corresponding recess in the tongue member ; the tongue may be inflated through a valve or it may be formed as a solid resilient body. In another form, Fig. 8, the fastening consists of two air chambers 6, 6<a> having interengaging tongues 22 and grooves 21, mechanical connection being made by necks 22a in the tongues and grooves. The chambers may be inflated through a single valve 5 and may be reinforced by inserts 20. Fig. 4 shows the fastening applied to the closure of a rigid vessel 1. The parts 2, 3 of the fastening seat in grooves along the edge of the vessel 1 and are mechanically connected together by a hooklike part 13 engaging over a projection 12, sealing being effected by inflating the part 2 through an opening 14. In a modification, a rigid vessel is provided with a circular opening bordered by an inwardly-facing groove ; a circular closure member therefor has an edge adapted to enter the groove and to be inflated so as to make an air-tight joint. In addition, a fastening is shown in Fig. 6 comprising interengaging tongues 15 on the edges of a vessel, one edge of the vessel having secured to it below the tongues, a hollow tube adapted to be inflated to effect sealing.
Patent GB-981967-A (GB)
Title: Improvements relating to waveguide systems
Inventor: STEWART JOHN
IPC: H01P1/00
Filed: 1962-06-07
Abstract: 981,967. Waveguide accessories. FERRANTI Ltd. June 4, 1963 [June 17, 1962], No. 21982/62. Heading H1W. A device for protecting a waveguide system against arcing comprises a section 11 of rectangular waveguide having in the centre of one broad wall an aperture 13 housing an electrode 14 the inner surface of which is co-planar with the waveguide wall. Occurrence of an arc between the electrode and the opposite broad wall of the guide causes the circuit through relay 23 (or equivalent device) to be completed and protective switches to be operated. The device is placed immediately on the output side of the generator since arcs occurring in a system invariably travel towards the generator. The electrode is provided with a flange 18 which, together with a dielectric disc 19 and the opposed outer surface 12<SP>11</SP> of the waveguide wall, forms a by-pass capacitor for R.F. energy. A plug 22 of lossy material is provided to absorb leakage.
Patent GB-615105-A (GB)
Title: Improvements in coin testing devices
Filed: 1946-07-24
Abstract: 615,105. Coin-freed apparatus. IMPERIAL TOBACCO CO. (OF GREAT BRITAIN & IRELAND), Ltd., and HASTED, H. C. July 24, 1946, No. 22000. [Class 27] Testing coins.-Gate mechanism on a coin runway for arresting counterfeits which are oversize in diameter or over thick, especially just within the rim, has diameter and thickness gaps which vary simultaneously, one gap increasing as the other decreases. The runway shown comprises a fixed plate 7 hinged to it at 4 and provided with a ledge 8 along which the coin rolls. A pair of rockers 11, 12 are pivoted at 13, 14 to the plates 2 and 7 respectively, and comprise opposed inwardly directed arms 15, 17 and inwardly directed claws 16, 18 just below the arms. Stops 25, 26 limit movement of the rockers under the weight of the arms 15, 17 and with the claws 16, 18 separated sufficiently to pass the rim of the coin but with the arms 15, 17 spaced from the ledge 8 a distance less than the diameter of the coin. When a coin reaches the gate it first enters freely between the claws 16, 18 but when the rim contacts the arms 15, 17 the claws move inwardly and arrest it if it is overthick or oversize in diameter. The clearances are, however, sufficient to pass a correct coin, so that it continues down the runway to the coin-freed apparatus. The claws preferably engage the coin just inside the rim where it is not subjected to wear. An aperture in the plate 2 releases underdiameter coins before they reach the gate. Modifications are described: (1) in which the rockers are mounted at the bottom of the runway to co-operate with a ledge, similar to 8, at the top, (2) in which one of the rockers is omitted and (3) in which both rockers are mounted on the fixed plate 2. This prevents fraudulent passing of a counterfeit through the gate by the operator easing the plate 7 by the means provided for swinging the plate to clear the mechanism. Clearing-apparatus. -To release coins held in the gate, the plate 7 is moved on its hinge pivot 4 away from the fixed plate 2. The plate 7 has an extension arm 9 connected by a wire 22 to, for example, the coin-freed delivery mechanism so that attempted operation of the delivery mechanism moves the plate 7 sufficiently to release the coin. The ledge is narrowed beneath the gate to reduce the movement necessary to a minimum.
Patent GB-599844-A (GB)
Title: Improvements relating to signal transmission systems
IPC: H05K9/00
Filed: 1945-08-28
Abstract: 599,844. Preventing inductive disturbance. SPERRY GYROSCOPE CO., Inc. Aug. 28, 1945, No. 22056. Convention date, Aug. 28, 1944. [Class 40 (iv)] [Also in Group XL] Interfering potentials are excluded from a lead 16<1> by means of a screen 171 whose potential varies with that of the lead 16<1>, and radiation from the screen 17<1> is prevented by an earthed screen 35<1>. A source 11<1>, which may be a probe for testing high-frequency apparatus feeds a utilization circuit, such as a cathoderay oscillograph or valve voltmeter, through an earth-return circuit 16<1>, 15<1>, and interference from outside is prevented by the screen 17<1>. In order that the source 11<1> may not be shunted by high capacitance between lead 16<1> and screen 17<1>, the potentials of the latter are subjected to the same variations and to this end they are connected to the control grid 21<1> and cathode 22<1> of a cathode-follower valve 19<1> having an amplification factor approximating to unity. The valve 19<1> may be a triode, Fig. 1 (not shown), or a tetrode whose screen grid 38<1> is connected as shown to reduce gridplate capacitance.
Patent GB-398331-A (GB)
Title: Improvements in or relating to cans and like containers
IPC: B65D45/16
Filed: 1932-08-06
Abstract: 398,331. Labels. ROBINSON, F. G., Springfield House, Sutton-on-Hull. Aug. 6, 1932, No. 22087. [Class 73.] The heads of lugs 1<x> employed for securing the lids of cans &c. in place are utilized to give an indication of the colour or other particulars of the contents of the can.
Patent GB-221048-A (GB)
Abstract: 221,048. Soandinavia Belting, Ltd., and Fenton, J. July 12, 1923. Materials, special, ropes of; machines for making.-A rope-like body used in the manufacture of friction linings is formed by feeding a group of yarns or strands of asbestos &c. a from bobbins e through a gathering nozzle b, and feeding the centre of the group with short staple asbestos or yarn waste by means of a revolving hopper c. The frame d carrying the bobbins e revolves with the hopper, and some of the yarns mav be led through the hopper to facilitate the feeding of the core. The nozzle b also rotates with the hopper, so that a twist is imparted to the issuing mass, which is removed by a roller h rotated slowly by worm gear j. The yarns may, however, be plaited round the core. Specification 178,883, [Class 80 (ii), Gearing, Variablespeed &c.], is referred to.
Patent GB-473101-A (GB)
Title: Securing means for the screw spigots of electric current connections on electric lamps, connecting plugs, fuse plugs and so forth
IPC: H01R33/97
Filed: 1936-08-12
Abstract: 473,101. Locking screws. KROS, J. Aug. 12, 1936, No. 22172. [Class 89 (i)] [Also in Group XXXVI] A screw spigot 9 such as an electric lamp-cap, fuse, or coupling is locked against loosening under vibration &c. by a pawl 15 that is mounted on a resilient support 10 on the screw socket 14 and enters a slot 16 in the socket so as to engage the spigot 9. When the spigot is screwed up the pawl acts to prevent it from loosening, but if the spigot is unscrewed by hand the resilience of the pawl is overcome and it reverses, allowing free movement of the spigot. The pawl is formed by the end 15 of a helical spring 10 located around a wire 11 fixed in lugs 12, 13 pressed out from the socket 14. The spring 10 may closely surround the wire 11 at its lower end and be flared at the upper end to allow the necessary freedom.
Patent GB-442020-A (GB)
Title: Improvements in the production of cellulose
IPC: D21C3/16
Filed: 1934-07-30
Abstract: In the extraction of cellulose from wood, straw, wood pulp, &c., the materials are opened up by treatment with nitric acid under pressure, for example, a pressure exceeding 10 atmospheres. Nitric acid of 2--10 per cent strength is conveniently used, and the acid may be produced in situ; also in order to protect the cellulose it is desirable that the acid should contain dissolved p  or suspended therein a wood substance.  The temperature is conveniently maintained at 60--90 DEG  C., the higher temperatures being generally employed with the lower pressures and vice versa. After the nitric acid treatment, the wood &c. is extracted with alkali of either low or high concentration and in the cold or at raised temperatures and if desired under pressure, for example, with dilute alkali under 6--10 atmospheres at 100--130 DEG  C.  The treatment with alkali may be in two stages, first with dilute alkali at elevated temperatures and at atmospheric or raised pressure, and then with cold, more concentrated alkali.  Any of the treatments may be repeated.  The purified cellulose is suitable for the manufacture of cellulose derivatives or of paper. Specifications 263,938, 312,098, [both in Class 2 (ii)], 438,433, 438,435, and 438,643 are referred to.
Patent GB-577484-A (GB)
Title: Filter
IPC: B01D35/06
Filed: 1944-11-10
Abstract: 577,484. Filters. BENDIX AVIATION CORPORATION. Nov. 10, 1944, No. 22222. Convention date, Nov. 18, 1943. [Class 46] [Also in Group II] A filter comprises a head with inlet and outlet openings therein and a chamber between the openings containing a filter element, the bottom of the chamber being closed by a bowl which has an upwardly-extending tube sealed therein and is held in place by a bolt passing through the tube. In the construction shown, a filter head 10 is provided with inlet passages 20, 21 outlet passages 14, 15-and a chamber 18 containing a filter element 30 preferably of the edge filter type. The chamber is closed by a bowl 44 which contains a disc magnet 70 apertured to fit over a tube 54 secured to the bowl. The element 30 and bowl 44 are held in place by means of a bolt 28 and nuts 34, 56. The nut 34 is provided with pins 42 for engaging a projection 64 inside the bowl whereby the nut cannot work loose. The magnet 70 which has a slot 72 to clear the projection during 64 dismantling or assembly, is secured to a non- magnetic support 76, which is slidable on the tube 54 and is held in position by a spring 80. The bowl 44 has a sump 48 within which is a reinforcing member 50. As shown, the filter is arranged for the inlet of liquid through opening 20 and the outlet through opening 14, but these openings may be closed by plugs 22, 16 taken from the other inlet and outlet openings 21, 15, if it is desired to connect these latter openings to the fluid-circulating system. The outlets 14, 15 may be used for connecting the filters to more than one mechanism requiring filtered fluid.
Patent GB-1038129-A (GB)
Title: Manufacture of organic polyisocyanates
Inventor: NICHOLAS ANDREW JOHN
IPC: C07C263/10
Filed: 1964-05-29
Abstract: In a continuous process for the manufacture of organic polyisocyanates, a polyamine hydrochloride is formed by reaction between HCl and a solution of polyamine in an inert solvent at a temperature up to 50 DEG  C. and the hydrochloride reacted with phosgene.  Diisocyanates derived from benzene, toluene, diphenylmethane, 3-methyldiphenylmethane, biphenyl and naphthalene are specified.
Patent GB-183728-A (GB)
Title: Improvements in or relating to the lubrication of internal combustion engines
IPC: F01M1/04
Filed: 1921-08-23
Abstract: 183,728. Petter, P. W., and Petters, Ltd. Aug. 23, 1921. Force-feed lubricators; lubricant conveyed by mechanical means.-Oil is supplied to the main bearings of a two-stroke internal-combustion engine, and thence to the connecting-rod bearings, by pipes i<1>, i<2> from a reservoir f maintained under the pressure in the crank case by a pipe h fitted with a non-return valve. A small leakage hole is provided in the reservoir f so that the pressure is relieved when the engine stops. In a modification, oil is supplied by ring-oilers dipping in wells which may be supplied from the pressure reservoir f.
Patent GB-1493571-A (GB)
Title: Electric switch actuating means
IPC: H01H23/14
Filed: 1976-05-28
Abstract: 1493571 Pivots CUTLER - HAMMER WORLD TRADE INC 28 May 1976 [28 May 1975] 22423/76 Heading E2F [Also in Division H1] An electric switch actuator comprises a pivotable lever 14 having a pair of trunnions 14e, 14f positioned in holes 16c, 18c of a pair of inserts 16, 18 which are mounted with an interference fit in a bore of a mounting member 12. The lever 14 has an intermediate spherical portion 14d from which the trunnions 14e, 14f extend, each being received in a hole 16c, 18c in one of a pair of semi cylindrical plastics inserts 16, 18. The pair of inserts 16, 18 is fitted together by a projection (16a), 18a on each one fitting into a notch (18b), 16b in the other and is located in a bore of a bushing 12 of a switch housing 10 by tapered or rounded detents 18d provided at the lower ends of the inserts 16, 18 which are snap fitted into holes, recesses or an annular groove 12d in the bushing 12. Alternatively, the inserts 16, 18 are located in the bushing 12 by providing them with holes (20a) (Fig. 6, not shown), cutting a pair of vertical slits in the bushing 12 opposite each hole (20a) and bending the strip (12g) so formed into each hole (20a).
Patent GB-877022-A (GB)
Title: Improvements in and relating to the construction of piles piers, jetties, bridges and the like
IPC: E02B3/06
Filed: 1959-07-01
Abstract: 877,022. Building and structures subaqueous. ROBERTSON, A. M. June 30, 1960 [July 1, 1959], No. 22619/59. Class 68(2). A method of constructing piled piers, jetties, bridges, and the like consists in driving bents of piles, comprising a single pile 14 and a pair of raker piles 15. A piling frame 11 and crane 12 are supported on rails 10 mounted on girders 10a, a cantilever structure 13 enabling the first bent to be driven a suitable distance off shore. A preformed shuttering structure 16 is fitted over the piles forming a beam 26 when concrete is introduced having shoulders 23 and bearer pads 24 for supporting the rail girders 10a. Reinforced planks 28 are then fitted supported by a shoulder 23 and by a shore support and the rails and girders are extended to rest on the pads 24 so that the piling frame and crane are moved forward and the next pile bent can be driven.