baber/WOPTO huggingface dataset:
Patent GB-552773-A (GB)
Title: Improvements in fuel injection apparatus for internal combustion engines
IPC: F02M53/04
Filed: 1941-10-21
Abstract: 552,773. Fuel injectors. BENDIX AVIATION CORPORATION. Oct. 21, 1941, No. 13544. Convention date, Oct. 11, 1940. [Class 7 (iii)] The nozzle 24 is formed in or attached to a guide 17 for the injection valve 19, and a cooling-chamber 40 is formed between the valve guide and a thin casing 35, which is screwed at its lower end to the nozzle, and has a flange 37 held between the valve guide and the nut 14 securing the nozzle to the body part 10. Cooli ng-fluid is circulated through the chamber by passages 42 .. 45. The casing 35 is preferably of stainless steel, but may be of chrome-plated bronze or brass ; and fins may be provided on its interior or on the tapered portion of the valve guide 17 forming the inner wall of the chamber 40. Other arrangements of the cooling-chamber, more or less below the injection valve, are described.
Patent GB-766130-A (GB)
Title: Improvements in or relating to conveyor drives
IPC: F16H57/025
Filed: 1954-05-10
Abstract: 766,130. Conveyer driving gear. JOCHUMS, A., and WITTKOP, E., [trading as HAUHINCO MASCHINENFABRIK G. HAUSHERR JOCHUMS & CO.]. May 10, 1954 [Feb. 2, 1954], No. 13559/54. Class 78 (1). The driving head of an endless jointed band conveyer comprises a main drive shaft 2 journalled in the conveyer frame 4and a gearbox, motor and clutch assembly which is overhung by means of the gear-box output shaft 8 on the main shaft, in which the two shafts are connected together in alignment by coupling flanges or coupling discs 10, 11 on the respective shafts secured together by bolts 9, and means are provided for preventing the gear-box from turning about the axis of the main shaft. The motor 5 is mounted independently on a base 16 secured to the conveyer frame while the gearbox 6 is restrained from movement around the axis of shaft 2 by a double link 17 pivotally connected between it and the base 16, one pivotal connection being adjustable to align the motor and gear-box shafts vertically, while lateral movement of the gear-box in the event of distortion of the frame 4 is allowed by the interposition of a clutch 15 incorporating a flexible coupling. In an alternative form, Fig. 2 (not shown), the motor and clutch assembly is bolted directly to the gear-box, the complete assembly being prevented from turning around shaft 2 by interengaging ledges on the motor and frame 4 allowing lateral movement as above.
Patent GB-497216-A (GB)
Title: Improvements in and relating to tipping vehicle, wagon and like bodies
IPC: B60P1/32
Filed: 1937-05-13
Abstract: 497,216. Vehicle fittings for loading. RATCLIFFE, J. T. May 13, 1937, No. 13560. [Class 78 (iv)] [Also in Group XXXII] A load-carrying platform, of the kind mounted for tipping about a horizontal transverse axis for movement at rightangles to the axis of tipping whereby tipping occurs automatically as the platform moves beyond a balance point, is movable beyond the balance point until it lies substantially fully extended beyond the tipping axis so as to assume the least possible inclination to the horizontal permissible according to the relation between the length of the platform and the height of the tipping axis. As shown, a loadcarrying platform for a vehicle comprises two connected ramps which may be formed entirely of metal but are shown each consisting of wooden battens 23, 24, Fig. 3, separated by a plate 12 and bordered by plates 25, 26, the plates 12 projecting downwardly to engage rollers 11 mounted in interconnected, longitudinal, platform guides 9, 10 which are pivotally mounted on the chassis 7 about the tipping axle 8. A chain 13, Figs. 1 and 4, secured at its ends to, the platform, engages a manually-rotatable sprocket 30 on the axle 8, so that on rotation of the sprocket the platform slides longitudinally on the rollers 11 until it overbalances, the platform and the guides 9, 10 tipping about the axle 8. A winch 15 is provided for hauling a load on to the platform which may contain a stop adapted to be engaged by the load, after which the platform is pulled into its level position by the winch. A jib 20 also may be provided. Means are described for securing the sprocket in any position. Instead of chain-and-sprocket mechanism, rack-and-pinion or other mechanism may be used. In order to haul, for example, a vehicle having a broken wheel, on to the platform, a trolly-like device adapted to travel on one of the ramps may be provided on which the stub-axle of the broken wheel may rest.
Patent GB-825241-A (GB)
Title: Antibacterial cyanonitrovinyl-benzenes and thiophenes
Inventor: VECCHI ALBERTO
IPC: C07D333/38
Filed: 1957-04-29
Abstract: The invention comprises antibacterial compounds of the general formula <FORM:0825241/IV (b)/1> (wherein X represents sulphur or vinylene, R is hydrogen or, when X is vinylene, a nitro group, and R1 is hydrogen or bromine) and their preparation by reacting an aldehyde of the general formula <FORM:0825241/IV (b)/2> with an excess of nitromethane in the presence of alcoholic potash, refluxing the resulting mixture with acetic anhydride, and isolating the product either directly or after treatment with dilute hydrochloric acid.  If required, the product so obtained (in which R1 is hydrogen) is reacted with two equivalents of bromine, and the resulting di-bromo derivative is dehydrobrominated, without isolation, with an equivalent of potassium carbonate.  Examples describe the preparation of 4-cyano- and 4-cyano-b -bromo-b -nitrostyrene, 4-cyano- and 4-cyano-b  - bromo - 2,b  - dinitrostyrene, and 1 - (5 - cyano - 2 - thienyl) - and 1 - (5 - cyano - 2 - thienyl) - 2 - bromo - 2 - nitroethylene.  2 - Methyl - 5 - cyanothiophene, prepared by refluxing 2-methyl-5-iodothiophene with cuprous cyanide in pyridine, is oxidized in acetic acid with chromium trioxide/sulphuric acid to 2 - formyl - 5 - cyanothiophene di-acetate which is hydrolysed with sulphuric acid in aqueous ethanol to the aldehyde.
Patent GB-988235-A (GB)
Title: Improvements in scouring pads
IPC: A47L17/08
Filed: 1961-04-15
Abstract: 988,235. Scouring pads. H. GROPPER. April 15, 1961, No. 13659/61. Heading A4F. A scouring pad has a flexible porous main core body 20, e.g. of natural or synthetic sponge, and a flexible porous abrasive sleeve 12 forming a cover for the body which substantially fills the interior of the sleeve. The latter is of knitted or woven fabric having two yarns in combination, namely a monofilamentous ribbon yarn having abrasive edges and of a non-absorbent plastic, e.g. polyethylene terephthalate, and a softer and twisted reinforcing yarn, e.g. of nylon. The body is anchored by stitching 22 to one end of the sleeve, the other end of which is seamed at 16. The stitching 22 is also used to secure a protective covering 24 of frangible material which is readily torn therefrom prior to use of the pad. Specification 988,236 is referred to.
Patent GB-695620-A (GB)
Title: Improvements in or relating to lapping apparatus
IPC: B24B15/00
Filed: 1952-05-30
Abstract: 695,620. Lapping valve seats. DEWRANCE & CO., Ltd. May 30, 1952 [June 1, 1951], No. 13764/52. Class 60. Apparatus for lapping a valve seat 23, such as that of a pop safety valve, comprises a rotary carrier 28 carrying at least one rotatable lap 47 rotatably mounted in the carrier which moves the lap bodily in a circular path, and means for effecting simultaneous rotation of the lap and the carrier about their respective axes, the carrier including a part 54 to fit and rotate within a cylindrical part of the valve. The apparatus, in its preferred form, includes four laps 47 each connected by a pair of dowel pins with a pinion 43. The assembled laps and pinions are rotatably mounted with slight axial play on pins secured by nuts 40 to the carrier 28 and are held in place by bolts 50. A layer W of hard fibre or other anti-friction material may be provided. A stationary annular gear 51 temporarily secured to the lower end of the valve sleeve 27 meshes with the pinions so that they rotate together with the laps on their own axes when the carrier 28 is rotated by a shaft 62 with which it is connected by a bolt 60, cup-shaped member 59 and a universal joint 61. The laps are correctly positioned in relation to the valve seat 23 by the part 54 which rotates as a unit with the carrier 28 in the sleeve 27. The gear 51 and pinions 43 may be provided with triangular teeth or coarsely knurled surfaces instead of properly developed teeth and the gear ratios are so chosen that the laps rotate at different speeds and frequent coincidence of a particular point on a lap and a particular point on the seat is avoided during lapping. The laps may be of abrasive material or of cast iron.
Patent GB-234817-A (GB)
Title: A condensate controlling device for vaporous fluids under pressure
IPC: F16T1/14
Filed: 1925-05-26
Abstract: 234,817. Ludeman, O. H. May 28, 1924, [Convention datc]. Valves controlled by pilot or relay valves.-A condensate-release valve is controlled by a second valve operated through a pressure-responsive member such as diaphragm which is subjected on one side to the fluid pressure and that of a varying head of condensate and on the other side to the fluid pressure and an approximately constant hydrostatic head. Steam from the boiler enters the space. 4 of the container 2 by the opening 3, passes down through the perforated plate 7 and up on the other side of a baffle 5 to ports closable by a valve 44 in the pipe 6 leading to the point of utilization. Water accumulates in the container until the head is sufficient to move the diaphragm 9 against the practically constant head of condensate in the exposed pipe 11 connecting the space on the outer side of the diaphragm with the container. This movement of the member 9 alters the position of a valve 14, through the loosely connected rod 16, from the seat 15 to the seat 15<a>. The main discharge valve 28 moving in a cylinder 27 is normally kept on its seat 29 by a spring 32 and steam pressure communicated through a slotted guide 31 and the passage 25 to the upper side of the valve. The movement of the valve 14 cuts off the pressure and opens the passage 25 to the atmosphere through the discharge pipe 24. The steam pressure, operating through a discharge port 30 in the wall of the cylinder 27, upon a shoulder 28<a> of the valve in an annular space above the seating 29, lifts the valve 28 and accumulated water passes to the discharge. To close the steam valve 44 when there is too great an accumulation of water than the trap can discharge normally, the abnormal operation of the flexible diaphragm 9 causes a rod 33 to displace a ball 36 in a chamber 36a communicating with a space on the outer side of the diaphragm, thus allowing steam pressure through a pipe 37, to move a piston 39 in a cylinder 38. A spring 57 is compressed and a part 41 bears against an arm 42 to rotate the valve spindle 43, locking means 50, 52 being put out of operation by the motion. The cylinder 38 can be drained for the return of the piston 39 by operation by the lever 55 of a relief valve 55<a>. Means are described for re-opening the valve 44 by hand. The valve 44 can be closed quickly during ordinary operation by admitting pressure to the cylinder 38 by pressing down the lever 55 to the full distance, again displacing the ball 36, the valve 55<b> closing the lower orifice. Means are described for displacing the ball 36 by fluid pressure on a piston operating the sliding tube 75 (Fig. 14) in connection with a device for closing the valve 44 in case of development of too great a speed by the engine &c. driven by the steam supplied by the steam line in which the steam trap works.
Patent GB-901638-A (GB)
Title: Improvements in or relating to carbon brushes
IPC: H01R39/24
Filed: 1959-04-23
Abstract: 901,638. Carbon brushes. SOC. LE CARBONE-LORRAINE. April 23, 1959 [April 29, 1958], No. 13872/59. Class 35. A carbon brush 1 for use at high altitudes or in rarified atmospheres has formed therein at least one channel or other receptacle 2 which contains a mixture of tin sulphide and a binding agent comprising either a styrene/polyester resin or a low melting-point highly electrically conductive metal. The mixture may comprise by weight 90% sulphide and 10% binder, the metal binder may be silver powder, and the resin binder may be cured in situ in the channel either by the application of heat or in the cold. The receptacles 2 may be staggered pockets as in Fig. 1, deep slots, not shown, parallel with the longest side of the brush, or slots which extend diagonally or obliquely (Fig. 6) across the brush end face.
Patent GB-549566-A (GB)
Title: Improvements in or relating to dish washing machines
IPC: A47L15/50
Filed: 1941-10-28
Abstract: 549,566. Dish-washing machines. ABBEY, A. (Bolinder's Fabriks Aktiebolag). Oct. 28, 1941, No. 13890. [Class 138 (i)] In a dish-washing machine of the kind described in Specification 515,322, the locking device for maintaining the dish support in its raised position is pivotally connected with the link mechanism between the lid and the support, so that springs can be dispensed with. Each of the links 34 described in the prior Specification is pivoted to a. locking arm 44 pivoted at 46 to the sliding support and provided with a stop member 54 having an inclined face 64 adapted to co-operate with the guide rail 32. As the lid is opened the pull of the links 34 raise the dish support, the stops sliding against the guide rails until they can swing over their tops. The stops are prevented swinging too far by engagement with stops 56 on the support. When the lid is required to be shut, the initial thrust of the links 34 swings the stop members against stops 58, and allows the support to descend. To allow the support to be changed, the upper ends of the links 34 carry buttons 60 which can be removed from the lid when this is wide open, the end 62 of the slot in the brackets 40 being formed to allow of this detachment. A perpendicular from the contacting faces of the stop 54 and rail passes through the pivot 46.
Patent GB-863721-A (GB)
Title: Improvements in or relating to halogenated cyclobutane derivatives
IPC: C08F14/18
Filed: 1959-04-23
Abstract: The invention comprises vinyl-chlorohexafluorocyclobutane having the formula:  <FORM:0863721/IV (b)/1> which can be prepared by reacting the compound of the formula: CF2=CF CF2 CH2 Br which the compound of the formula CF2=CFCl at about 200,C. and dehydro brominating the resulting compound of the formula Cl CF CF2 CF2 CF CH2 CH2 Br.  In an example the first step of the process is effected in an autoclave and the dehydrobromination is carried out with ethanolic potassium hydroxide.  The product of the invention forms silicon-containing adducts with compounds containing silicon-bonded hydrogen and also takes part in conventional vinylic polymerisation reaction (see Group IV(a)).  Specification 863,722 is referred to.
Patent GB-1343649-A (GB)
Title: Clamping devices for pipe testers
IPC: G01M3/02
Filed: 1971-05-10
Abstract: 1343649 Testing pipes FRIEDRICH KOCKS 10 May 1971 [27 May 1970] 13953/71 Heading G1S A clamping insert for a clamping and sealing head of a pipe tester comprises, a pressure collar 1, Fig. 1, of a highly resilient material, a clamping bush 4 formed of segments 5, see also Fig. 2, with gaps 6 therebetween, inserts 7 of springy metal which expand and urge the bush 4 against the inside wall of the collar 1, and masking parts 8 which are non-resilient and prevent parts of the collar 1 from being squeezed into the gaps between the segments 5 and consequent failure of the test. A modification, Fig. 4, has flat strip masking parts 14 recessed into the segments 5.
Patent GB-1392331-A (GB)
Title: Recovery of mercury from chlorine cells utilizing mercury cathodes
IPC: C01D1/40
Filed: 1972-03-24
Abstract: 1392331 Electrolysis of brine using a mercury cathode F M C CORP 24 March 1972 [25 March 1971] 13980/72 Heading C7B  Mercury values are recovered from solutions produced by the electrolysis of brine using a mercury cathode electrolytic cell by precipitating the mercury values, treating the precipitate with a hypochlorite solution to dissolve the mercury values, separating the resulting solution from the insolubles, supplying it with a brine stream to a mercury cathode electrolytic cell, and removing depleted brine from the cell having a lower amount of mercury values dissolved therein than the brine entering the cell. Mercury values may be recovered from material including mercury values which is precipitated from the brine, e.g. by addition of sodium or barium carbonate, prior to recirculation thereof to the cell; or from the sodium hydroxide formed by decomposition of the amalgam formed during electrolysis or from wash water used to wash mercury or amalgam, the mercury being precipitated from the latter solutions by addition of sodium sulphide. Apparatus is shown schematically including a mercury cathode electrolysis cell, amalgam decomposer, various treatment stations, wash units, &c.
Patent GB-750558-A (GB)
Title: Improvements relating to circulatory fluid pressure power steering mechanisms for motor vehicles
IPC: B62D5/06
Filed: 1954-05-13
Abstract: 750,558. Fluid-pressure servomotor-control systems. GENERAL MOTORS CORPORATION. May 13, 1954 [Aug. 14, 1953], No. 14007/54. Class 135. The control valve of a fluid-pressure power steering mechanism is connected between two parts of the steering mechanism through which manual steering is normally effected and it is provided with a pair of reaction surfaces subject to the fluid-pressures in opposite ends of the servomotor cylinder to assist re-centring of the valve, and the effective area of the surface subject to the pressure in the cylinder chamber containing the piston-rod is less than that of the other surface. The invention is described with reference to a mechanism similar generally to that disclosed in Specification 747,309. Chamber 154 communicates through passages 161, 160, port 158, and passage 138 with the left-hand end of cylinder 18, and chamber 156 communicates through passages (not shown) and annular conduit 70 with the right-hand end of the cylinder which contains the piston-rod. The dimensions of the various surfaces in the two chambers 154, 156 are so chosen that the effective areas conform to the condition stated above. Specifications 704,058 and 746,564 also are referred to.
Patent GB-1127310-A (GB)
Title: Centrifugal pump having thrust balancing means
IPC: F04D13/06
Filed: 1967-03-28
Abstract: 1,127,310. Centrifugal pumps. PALL CORP. March 28, 1967 [March 30, 1966], No. 14047/67. Heading F1C. In a centifrugal motor-pump unit, a pressure chamber at the forward side (i.e. pump side) of a pressure divider (i.e. rotor 66) receives pressurized fluid from an impeller and delivers it through a restricted passage (i.e. rotor peripheral clearance) to a pressure chamber at the rearward side of the divider; the rearward pressure chamber is connected to the impeller inlet side through an opening or openings (i.e. three passages 36) and an axial passage 233 in the shaft; and the opening is controlled by a slide valve 94 in telescopic-sliding relationship with axially movable impeller shaft 224 to control the pressure drop across the divider and thereby provide a rearward axial thrust: The rearward thrust at least partially balances the axial thrust exerted on the shaft by the pump. The end pressure faces of the rotor may be of different areas. The motor may be of the planar air-gap type. The impeller may be the pump impeller 221 delivering to the forward pressure chamber via passages through partition 237 and through bearing support 246, or an auxiliary impeller 253 connected to the axial passage 233 by passages 254. In the former case the axial passage extends right through the shaft to communicate with the interior of impeller 221, Partial balance of the axial thrust may be achieved by isolating, by seal rings 248, 252, a portion of the outside face of the back plate of impeller 221 and subjecting this portion to a pressure lower than the pump delivery pressure by communicating the portion with the impeller inlet through passage 234, the auxiliary impeller circuit than balancing the residual axial thrust. The slide valve 94 is loosely connected to a carrier 92 so as to be movable radially to maintain its concentricity in axial passage 233. The slide valve may be in the form of an annulus surrounding the shaft and loosely connected to a spider carrier. Bearings 68, 86 are lubricated and cooled by the balancing fluid through passages 73, 27 and passages 87 respectively, the discharge from bearing 86 passing through restricted passages 99 in slide valve 94. The motor is cooled by the balancing fluid. The housing 11 may be cast in two halves divided axially. The halves of the axially-split housing or the parts of the divided housing shown may be connected together by bolts, welding or brazing or by press-fitting with an adhesive.
Patent GB-1058151-A (GB)
Title: Improvements in or relating to drying
IPC: F26B5/06
Filed: 1964-04-06
Abstract: 1,058,151. Drying foods. FMC CORPORATION. April 6, 1964 [April 8, 1963], No. 14054/64. Heading A2D. [Also in Divisions B1 and F4] A method of drying foods disposed in a drying chamber 10 comprises the steps of introducing a dry carrier gas into the chamber 10 at a sub-atmospheric pressure, supplying to the carrier gas heat sufficient for vaporization of the water from the food, the water vapour being swept away by condensing the mixture of carrier gas and water vapour at a total pressure below that of the carrier gas entering the drying chamber. The food is supported on mesh trays 14 within the chamber 10 after having been previously frozen.
Patent GB-200974-A (GB)
Title: Improvements in or relating to electrical control gear
IPC: H01H19/62
Filed: 1922-05-18
Abstract: 200,974. Clarke, Chapman, & Co., Ltd., and Harris, R. C. May 18, 1922. Controllers, multiple rocking bar. - A motor controller is constituted by a row of snap-action switches, each actuated by a pair of cams on a shaft turned by a handle. Each switch comprises a pivoted contact arm 7, toggle levers 10, 12, a spring 14 joining the centre of the toggle to a transmission lever 16, and a pair of cams 3 mounted in different planes on the shaft 1. As the shaft is turned the opening and closing of the switch is effected quickly by the passage of the spring 14 across the dead centre position. An extension 20 of the transmission lever 16 may initiate the collapse of the toggle.
Patent GB-514649-A (GB)
Title: Improvements in or relating to the production of luminescent screens
IPC: C09K11/02
Filed: 1938-05-12
Abstract: 514,649. Luminescent materials. FRANCO - BRITISH ELECTRICAL CO., Ltd., and BRACKENSEY, A. H. May 12, 1938, No. 14169. [Class 39 (i)] [Also in Group IV] A process for preparing a binding agent for attaching luminescent materials to a glass screen which does not blacken on exposure to electric discharges consists in reacting upon anhydrous phosphorus pentoxide with substantially absolute alcohol; i.e., alcohol of at least 99.9 proof. The binding agent may be made by dissolving up to 60 per cent. by volume of the pentoxide powder in ethyl alcohol, the product being believed to be ethyl hexametaphosphate. It is not highly deliquescent and may therefore be stored. The binding agent may be introduced either with or before the luminescent material, preferably by the method described in Specification 468,543, [Group XX], in the case of deposition on the inner surface of the discharge tube.
Patent GB-198549-A (GB)
Title: Improvements in pneumatic hammers
IPC: B25D9/18
Filed: 1922-05-19
Abstract: 198,549. Bird, P. C. May 19, 1922. Percussive hand tools.-The handle 18, valvechest 15, and barrel 11 are made separate and bolted together, and the leading end of the groove in the throttle-valve 19 is made convex to ensure delicate fluid control.