baber/WOPTO huggingface dataset:
Patent GB-1245667-A (GB)
Title: Improvements in control valves for air braking systems
Inventor: DAWSON STUART BRUCE
IPC: B60T8/34
Filed: 1969-04-18
Abstract: 1,245,667. Brake valves. GIRLING Ltd. 13 July, 1970 [18 April, 1969], No. 19922/69. Heading F2F. In an air-operated brake system a control valve is provided which in normal braking permits direct communication between a pedal operated valve and a brake actuator 50 through an inlet 35 and outlet 36 by way of a chamber 37 between a seating 29 and valve member 30 but which closes such communication when a signal is detected indicating that a wheel deceleration has fallen below a predetermined value. A normally closed valve 42 is provided in a passage 40 and connects by way of passage 41 the outlet 36 and the space above a piston 15, valve 42 being opened when a solenoid detects the signal so that air is passed to the space above piston 15 which is thus moved downwardly, carrying with it a tubular valve stem 14 engaging valve member 30. After valve member 30 engages seat 29 to close communication between inlet 35 and outlet 36, piston 15 continues moving until it engages a seat 19, air in outlet passage 36 passing through the hollow stem 14 to act on the opposite side of a diaphragm 49 in the actuator 50 to reduce the braking effort. This continues until the differential pressure acting across diaphragm 49 is equalized, the pressure acting on the opposite side being relieved through ports 26. The actuator 24 may include a wedge 48 for separating adjacent brake shoe ends.
Patent GB-688147-A (GB)
Title: Improvements in or relating to the production of carbon disulphide
Filed: 1950-08-10
Abstract: <PICT:0688147/III/1> <PICT:0688147/III/2> Carbon disulphide is prepared by fluidizing with sulphur vapour at elevated temperature, a finely grained carbonized hard coal which has been treated with oxidizing gases such as air at 200-300 DEG C before carbonization. The pre-oxidation and the carbonization, (the latter at 700-1000 DEG C with preheated nitrogen, hydrogen, coke oven gas or recycled gas), may both be effected under fluidized conditions.  In Fig. 1, sulphur from a hopper a is fed through an evaporator d and superheater e to a furnace f, thus fluidizing the pre-oxidized carbonized hard coal fed thereto from hopper i.  The sulphur vapour may be distributed by small ceramic bodies at the base of the furnace or injected through a plurality of pipes.  Carbon disulphide is withdrawn at k.  The furnace is heated by gas burners g the gases from which heat the sulphur.  In Fig. 2 a cylindrical insert m is provided in the furnace whereby the carbon, fluidized by the sulphur from n is caused to circulate around the cylinder m and thus keep the walls free from sulphur.  Finely-divided carbon, escaping with the gases from the furnace may be converted by blasting sulphur vapour into the gas current leaving the furnace.  Specification 620,315 is referred to.
Patent GB-1201835-A (GB)
Title: Improvements in or relating to meat cutting machines
Inventor: DUCOURNEAU PIERRE JEAN RENE
IPC: B26D1/153
Filed: 1968-04-26
Abstract: 1,201,835. Meat slicing machine. P. J. R. DUCOURNEAU. 26 April, 1968 [28 April, 1967], No. 19970/68. Heading A4C. A slicing machine comprises a frame 1 having mounted thereon an electric motor 2 to drive the circular rotary cutter 3 which is provided at its upper part with a protective case 4, a fixed plate 7 having a curved notch 8 into which the knife 3 is mounted, secured to frame 1 by means of a bracket 6 and a movable platform 9 extending at right angles to the fixed plate 7 and cutter 3, the lateral edge furthest from the cutter being bent up at 90 degrees to form a bearing face 10, said platform being fitted with a pair of adjustable transverse partitions 25 and 28 for clamping in position a piece of meat, e.g. sausage, to be cut by the machine in such a way that the main piece of meat, held in position by a sliding member 23, need not be removed from the machine. The machine is fitted with a meat collector 16 parallel to the fixed plate 7 secured to an arm 17 adapted to pivot around shaft 18, said meat collector having a substantially semi-cylindrical upper face and parallel and vertical lateral faces 19 and 20 and a row of small points or studs 21 on its upper face for holding in position a stack of paper sheets for receiving the slices of the main meat, and one or more points or studs 22 on its lateral face 20, said collector also having a front extension in the form of a horizontal tray 29 for receiving the cut pieces of sausage &c. and a raised edge extension 30 to facilitate gripping of the sheets of paper.
Patent GB-320133-A (GB)
Title: Improvements in or relating to means for operating and controlling gearing variable step-by-step
IPC: B62M25/04
Filed: 1928-07-10
Abstract: 320,133. Newley, F. P. July 10, 1928. Controlling variable-speed gearing.-In order to impart definite stepped displacements to a lever 4, Fig. 1, which controls the variable-speed gear of a motor-cycle, repeated oscillations are given to a pedal-lever 1, which actuates the lever 4 through ratchet crowns 5, 6, alternatively, one for each rotary direction. The lever 4 extends from a double ratchet crown 3 loose upon a shaft 2 to which the lever 1 is secured. The crowns 5, 6 are also loose and are adapted to be actuated one at a time by cam projections 7, 10, fast upon the shaft 2. One projection 7 is moving its crown 5 into engagement with crown 3 while the other projection 10 is moving its crown 6 out clear; continued movement of lever 1 until arrested by stop 1<c> or stop 1<d> then moves lever 4 one step, where it is held by suitable means. The lever 4 may be moved a further step in the same direction, or a step back, on the next oscillation of lever 1 according to whether end ' H1 ' or end 'L0' is depressed. A spring 29 returns shaft 2 to neutral. Controls for operations incidental to the gear change such as engine clutch, or throttle, or exhaust valve, are effected from the initial foot &c., lever 1. For this purpose, the shaft 2 is provided with a cam 19, Fig. 4, for each such control adapted to coact with a lever 20 to pull a Bowden cable 21. In Fig. 6 is shown means for producing a doubled displacement by the Bowden mechanism by having two actuated levers 20, 20<a>, acting on the cable 21 and the guide-tube 21<a> respectively. Means forgiving a visible indication of the speed in use is described. The arrangement of Fig. 1 is. adapted to move a gear-change lever 36, Figs. 9 and 10, in a gate with an H slot upon a car by connecting a system of cams 32 - - 85 to the stepwise-moved lever 4. Cam slots 37 in plates 32, 33 move the lever 36 perpendicularly to the plane of Fig. 10, and edge cam plates 34, 35 move it in that plane. These cams act on a plunger 38 resiliently carried by the lever 36.
Patent GB-581009-A (GB)
Title: Improvements in or relating to absorption refrigeration apparatus
IPC: F25B15/02
Filed: 1943-12-01
Abstract: 581,009. Refrigerating. STEVENS, A. H. (Gibson Electric Refrigerator Corporation). Dec. 1, 1943, No. 20081. [Class 29] Absorption systems.-For a system of the kind in which the generator 10 is replenished periodically with strong liquor from an absorber vessel 25 through a transfer vessel 35 alternately at generator and absorber pressures, a "pressure vessel" 37 is provided between the absorber and transfer vessels, whereby residual vapour vented from the transfer vessel is quietly absorbed in liquor in the pressure vessel, and a change-over valve device 36 is subject to opposed high and low pressures for a short period only at each transfer. The system shown includes an analyser column 13, rectifier 17, air cooled condenser 19, refrigerant receiver 21 and evaporator 22, and vapour from the evaporator is led through a cooling coil 29 in the pressure vessel and then to the riser limb 28 of a cooling circuit 26, 27, 28 for liquor from the absorber vessel. The vapour lifts the liquor in limb 28 and is absorbed therein. Part of the liquor flows out of branch nozzles 28a into a jacket 38 leading by pipe 39 and check valve 40 to the pressure vessel. Weak liquor flows from the generator by a pipe 33 to a float valve 32 in the absorber vessel. The valve device 36 is moved, when high temperature affects a thermostat element 54 in the generator, to connect a high pressure vapour conduit 45 with a conduit 43 to the transfer vessel and a conduit 42 with a conduit 46 to discharge the contents of the transfer vessel to the generator. The conduit 46 connects with a jacket 47 around the thermal element and the liquor rapidly cools this element to produce a reverse movement of the valve 36. The conduits 45, 46 are cut off, the conduit 43 is connected with conduit 44, and a conduit 41 to conduit 42. Vapour rising from the transfer vessel is absorbed by residual liquor in the pressure vessel and by weak liquor bleeding through a small orifice 49, a reduction of pressure ensues and liquor enters the pressure vessel past the check valve until both'transfer vessel and pressure vessel are filled, when the continued bleeding of liquor raises the pressure to close the check valve. As shown in Fig. 2 the check valve 40 is a metal disc, while the bleeder orifice is provided by a small fluted passage in a plug fitted in a sleeve. Modifications are described in which the pressure vessel is built into the lower part of the absorber vessel, and the bleeder orifice replaced by a valve held open by a spring except under high pressure in the pressure vessel.
Patent GB-583303-A (GB)
Title: Improvements in or relating to the manufacture of lithium base greases
Filed: 1944-10-17
Abstract: In the manufacture of greases and lubricating oil compositions containing lithium soaps, a quantity of a free soap-forming acid containing at least 16 carbon atoms in the molecule in solution in a lubricating oil is contacted with an equivalent quantity of a normal oxide of lithium at a temperature of 30 DEG  to 100 DEG  C., preferably 35 DEG  to 45 DEG  C., for a time sufficient to react at least 90 per cent. by weight of the oxide of lithium and the acid to form a soap.  The lithium compound includes Li2O, LiOH and hydrates of the latter.  The water of reaction is subsequently removed from the lubricant by heating to a temperature not exceeding 110 DEG  C. The fatty acids specified comprise stearic, palmitic, arachic, hydroxy-stearic, oleic, and ricinoleic acids and mixed fatty acids from tallow, lard, seed oils, wool fat, naphthenic acids derived from petroleum oils, rosin acids, tall oil acids, acids produced by the oxidation of paraffin wax or by the controlled oxidation of hydrocarbons and acids from montan wax and beeswax.  The lubricating oils are preferably of low aromatic content, i.e., solvent-extracted oils and also preferably of aniline point of at least 80 DEG  C. with a difference in aniline point before and after sulphation not exceeding 15 DEG  C.  A mineral oil prepared by solvent extraction from a gas oil fraction is exemplified.
Patent GB-202310-A (GB)
Title: Improvements in or relating to fire-arms
IPC: F41A3/82
Filed: 1923-08-09
Abstract: 202,310. France, State of, (Assignees of Reibel, J. F. J.). Aug. 11, 1922, [Convention date]. Machine guns.- A device for regulating the speed of discharge comprises a spring-controlled mass 5 which is set in motion bv the recoil of the breech-block so as to oscillate in guides parallel to the breech-block guides and thereby time the closing movement of the breech-block. The mass 5 is moved rearwards by the engagement of its finger 9 with a projection 3 on the breech-block or motor piston 11, thereby permitting a tumbler 1 to rise, into engagement with the projection 3 to delay the closing movement of the breech-block until the tumbler is lowered by the return of the mass 5. The finger 9 is controlled by a spring 12, and is released from the projection 3 by passing beneath a tumbler .1 of inverted U-section, the tumbler rising into angagememt with the projection 3 under the influence of the spring 12. When the mass 5 returns under the action of a tension spring 6, inclines 7 on the mass 5 engage inclines 8 on the tumbler to lower it and permit the breech to close. The spring 6 is adjusted to vary the rate of fire.
Patent GB-983238-A (GB)
Title: Process for hardening epoxide resins
IPC: C08G59/50
Filed: 1961-06-05
Abstract: A process for hardening epoxide resins comprises using as hardener a reaction product of at least one alpha, beta-alkylene imine which carries a hydrogen atom at the nitrogen atom and at least one primary and/or secondary mono- or poly-amine, the reaction product still containing a primary or secondary amino group.  Specified imines are 2 - ethyl - ethylene imine, 2: 2 - di-methyl - ethylene imine, 2: 3 - dimethyl - ethylene imine, 2: 2: 3-trimethyl-ethylene imine, 2-methyl - 3: 3 - diethyl - ethylene imine, 2: 2 - dimethyl - 3 - n - propyl - ethylene imine, 2 - phenyl - ethylene imine and 2: 3 - diphenyl - ethylene-imine. Specified amines are ethanolamine, diethanolamine, p-aminophenol, ethylene diamine, hexamethylene diamine, decamethylene diamine, 3: 31-diaminodipropyl ether, diamino diethyl sulphide, diethylene triamine, triethylene tetramine, 4: 41-diamino-dicyclohexyl-methane, phenylene diamine, 4: 41-diamino diphenyl methane, xylylene diamine and naphthylene diamine. Specified epoxy resins are the reaction products of epichlorhydrin with polyhydric phenols and alcohols, e.g. 4: 41-dihydroxydiphenyl dimethyl methane, dihydroxy diphenyl methane, dihydroxy-di-o-cresy. methane and 1: 4-dihydroxybutane.  Fillers, e.g. quartz powder, may be included in the reactive composition.  In the examples, epoxy resins made from epichlorhydrin and:-(1) and (7) 4: 41-dihydroxy-diphenyl methane; (2) and (5) di-o-cresyl methane and (3) and (6) a novolak are cured by reaction with:-(1) and (4) a reaction product of monoethanolamine with ethylene imine; (2) and (5) a reaction product of hexamethylene diamine with ethylene imine; (3) and (6) a reaction product of diethylene triamine with ethylene imine and (7) a reaction product of monoethanolamine with ethylene imine together with a reaction product of m-phenylene diamine with ethylene imine.
Patent GB-478880-A (GB)
Title: Improvements in alternating current measuring bridges
IPC: G01R17/00
Filed: 1936-07-22
Abstract: 478,880. Capacitance and resistance measurements. SIEMENS & HALSKE AKT.- GES. July 22, 1936, No. 20302. Convention date, Oct. 3, 1935. [Class 37] An alternating-current bridge for measuring complex resistance values has the potential across the instrument diagonal measured on a complex compensator connected into this diagonal. The bridge 1 ... 4 has compensating voltages fed to its instrument diagonal by wattmetric instruments 16, 17, the rotors of which vary sliders on resistors 10, 12 in the diagonal circuit. The input source to the bridge also energizes an amplifier 13 in the diagonal circuit, and a phase-shifter 20. The output of the amplifier 13 supplies the current windings 14, 15 of the instruments 16, 17, the potential coils 18, 19 of which are fed from the phaseshifter 20 with voltages displaced 90‹. A transformer 6 in parallel with the supply to the bridge has two secondary circuits 7, 8 one of which contains an ohmic resistor 9 and the other a capacitance 11. The potential on the slide wire 10 is thus 180‹ displaced from that supplying the bridge and 90‹ displaced from that on the slide wire 12. The positions of the slider arms 22, 24 when the bridge is balanced are measures of the unknown quantity 2, for example, a capacitance or condenser loss angle.
Patent GB-782393-A (GB)
Title: Improvements in or relating to thermosetting coating compositions curable at room temperature
IPC: C09D167/08
Filed: 1955-07-13
Abstract: A composition curable at room temperature and particularly suitable for coating cellulosic materials, e.g. wood, paper or cloth, comprises a thermosetting resin, an alkyd resin, a thermoplastic resin and a small amount of acid catalyst for curing the thermosetting resin.  The thermosetting resin may be a urea-, melamine- or phenol-formaldehyde one or an epoxy resin or a mixture of these resins.  Thermoplastic resins mentioned are polyvinyl chloride, polyvinyl acetate, polyvinyl formal, polyvinyl butyral or mixtures thereof.  A suitable alkyd contains 30-45 per cent phthalic anhydride and is modified by 35-65 per cent of soya, linseed or other drying oil.  It may be used with a small amount of metallic drier, e.g. Pb and/or Co naphthenate.  The acid catalyst is preferably 5-10 per cent of a 10 per cent solution of phosphoric acid or of a mixture of hypophosphorous acid and mono-, butyl- or ethyl-acid orthophosphate.  The catalysts may be dissolved in n-butyl alcohol, isopropanol or methyl ethyl ketone. Suitable solvents for the resins are xylene or toluene for the alkyd, di-isobutyl ketone, toluene and isopropanol for the vinyl resin, and alcohol, glycol ethers and aromatic solvents for the thermosetting resin.  In the examples, the alkyd resin is "Beckosol 1397" (Registered Trade Mark) solution, the thermoplastic resin is a solution containing polyvinyl chloride, polyvinyl acetate and polyvinyl alcohol, and the thermosetting resin is ureaformaldehyde in Example (1) and melamineformaldehyde in Example (2).  Solvents and alkyd driers are present.  The acid catalyst mixture in Example (1) contains monoethyl acid orthophosphate and hypophosphorous acid or phosphoric acid, dissolved in n-butyl alcohol, isopropanol and methyl ethyl ketone, and in Example (2) contains in addition mono-n-butyl acid orthophosphate. The compositions may also include pigments and dyes.
Patent GB-439650-A (GB)
Title: A new or improved anti-splash device for taps
IPC: E03C1/086
Filed: 1934-07-11
Abstract: 439,650. Anti-splash devices for taps. STEVENS, A. J., 9, Cambridge Street, Eccleston Square, London. July 11, 1934, No. 20329. [Class 135] An anti-splash device for insertion in a tap outlet comprises a flexible strip A bent to sinuous shape and then coiled on itself with more than one convolution. A plain integral or separate backing-strip A<1> may separate the convolutions. To facilitate insertion the coiled strip may be bound with wire C having loops C<1>.
Patent GB-661515-A (GB)
Title: Process for the production of naphthyridine derivatives
Filed: 1949-08-04
Abstract: Naphthyridines of the formula <FORM:0661515/IV (b)/1> in which R1 is alkoxy or alkythio wherein one hydrogen atom of the alkyl group has been replaced by alkoxy or dialkylamino, R2 is alkyl, aryl or aralkyl and R3 is amino, alkylamino, dialkylamino or acylamino or has the same meaning as R1, are prepared by treating <FORM:0661515/IV (b)/2> where X is halogen and Y is halogen, amino, alkylamino, dialkylamino or acylamino, with the appropriate alcohol or mercaptan, preferably in the presence of a condensing agent which may be the alkali derivative of the alcohol or mercaptan.  In the examples: 2-chloro-4-methyl-7-amino-1 : 8-naphthyridine and 2 : 7-dichloro - 4 - methyl - 1 : 8 - naphthyridine are reacted with diethylaminoethanol and diethylamino-ethanethiol.  Other products mentioned are the 2 - (31 - diethylaminopropoxy) - 4-benzyl - 7 - amino -, 2 - ethoxyethoxy - 4-phenyl - 7 - amino -, 2 : 7 - bis - (31 - diethylaminobutoxy) - 4 - ethyl-, 2 - (41 - diethylaminobutylthio) - 4 - propyl - 7 - diethylamino-, 2 - butoxyethylthio - 4 - (21 - phenylethyl) - 7-valeroylamino -, 2 - (31 - dibutylaminopropylthio) - 4 - t. - butyl - 7 - (21 - butylamino) - and 2 : 7 - bis - (di - t. - butylaminoethylthio) - 4-(11 - phenylethyl) - 1 : 8 - naphthyridines. The products may be isolated in the form of salts, e.g. citrates. The Specification as open to inspection under Sect. 91, describes the preparation of compounds of the first general formula above, where R1 and R3 may be any alkoxy or alkylthio radical.  Further examples are given of the preparation of 2-butoxy-4-methyl-7-amino-and 2 : 7 - bis - butoxy - 4 - methyl - 1 : 8-naphthyridines, using sodium in butanol as alkylating agent.  2-(41-Diethylamino-21 : 31-buten - 11 - oxy) - 4 - butyl - 7 - acetylamino-1 : 8-naphthyridine is also mentioned. This subject-matter does not appear in the Specification as accepted.
Patent GB-471137-A (GB)
Title: Improvements relating to mesh screens for use in television or like transmitting tubes
IPC: H01J29/43
Filed: 1936-01-27
Abstract: A mosaic screen for cathode-ray tubes, more particularly for television, comprises an electrically-conducting grid coated on at least one side with insulating material, a second conducting grid mounted on the insulating coating in such manner that the p apertures in the grids are in alignment, and electrically conducting mosaic elements which are mounted on and insulated from the first grid in such manner that they close the apertures in the first grid but do not extend within the apertures of the second grid.  A grid coated with insulating enamel is lowered, on a frame, into a tank of water on which is floated a film of platinum chloride dissolved in lavender oil.  The grid is then raised horizontally so that the film is deposited on one side thereof; air is blown from the uncoated side through the apertures in the grid to remove parts of the film which may close them.  The film is reduced by heat to form the second grid. Specifications 447,819 and 471,109, [both in Group XL], are referred to.
Patent GB-275973-A (GB)
Title: Improvements in or relating to the manufacture of chains
IPC: B21L11/14
Filed: 1927-08-03
Abstract: 275,973. Reid, J., Leahy, A. M., and Lutts, C. G. Aug. 10, 1926, [Convention date]. Chains. - In the manufacture of chains two portions of a link are united by forcing the heated metal of one portion into locking engagement with the cold metal of the other portion. As shown in Figs. 1, 2 each chain link is formed in two portions 1, 5. The legs 1<a> of the portion 1 are formed with necks 2 provided with a series of collars 3 of decreasing size separated by reduced portions 4, whilst the legs 5<a> of the portion 5 have stepped recesses 7 punched or drilled therein. The portion 1 is heat treated to high tensile strength and the portion 5 is similarly treated except for the parts round the recesses 7. The two link halves are united by means of dies 8, 10, Fig. 4, formed with continuous recesses 9, 11; the metal of the portion 5 round the recesses 7 is heated to a high temperature before being fitted over the necks 2 of the portion 1, and when the upper die 10 descends the plastic metal round the recesses 7 is interlocked with the collars 3 and reduced portions 4. The contact of the hot metal at the recesses 7 with the cold portion of the link and with the cold dies tempers the metal round the recesses simultaneously with the interlocking. If chains of the stud link kind are required the link portions 5 are forged with the cross piece 6. The modified construction of chain shown in Fig. 8 comprises solid links 14 connected by locking links 15, which are formed as shown in Fig. 6 with one end open and the cross piece 16 divided; after slipping the solid links in position the metal round the stepped recess 19 is interlocked by hot swaging with the collars 17 and reduced portions 18.