baber/WOPTO huggingface dataset:
Patent GB-1109843-A (GB)
Title: Improvements in or relating to organic polyalkyleneoxy carbonates
IPC: B23B47/28
Filed: 1965-03-31
Abstract: A polyalkylene oxycarbonate having surface-active properties has one of the formulae <FORM:1109843/C3/1> <FORM:1109843/C3/2> These carbonates may be synthesized by ester-interchange between the appropriate aryl-polyalkyleneoxy alkanol and a diphenyl carbonate or a substituted diphenyl carbonate at a temperature of from 200 DEG  to 230 DEG  C., and a pressure of from 5 to 15 mm. for 1 1/2 to 3 hours.ALSO:Organic polyalkyleneoxy carbonates of the following formulae may be used as hydraulic fluids or synthetic lubricants or may be added to mineral oil lubricants:  <FORM:1109843/C4-C5/1> <FORM:1109843/C4-C5/2> <FORM:1109843/C4-C5/3> <FORM:1109843/C4-C5/4> <FORM:1109843/C4-C5/5> <FORM:1109843/C4-C5/6>ALSO:An organic polyalkyleneoxy carbonate having surface active properties has one of the following formulae <FORM:1109843/C2/1> <FORM:1109843/C2/2> <FORM:1109843/C2/3> <FORM:1109843/C2/4> <FORM:1109843/C2/5> <FORM:1109843/C2/6> These carbonates may be synthesized by esterinterchange between an alkyl- or aryl-polyalkyleneoxy alkanol and a diphenyl carbonate or a substituted diphenyl carbonate at a temperature of from 200 DEG  to 230 DEG  C. and a pressure of from 5 to 15 mm. for 1 1/2 to 3 hours.
Patent GB-475496-A (GB)
Title: Improvements relating to the fuel supply of direct injection oil engines
IPC: F02M43/00
Filed: 1936-05-14
Abstract: 475,496. Direct - - injection engines. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) May 14, 1936, No. 13669. Drawings to Specification. [Class 7 (iii)] Before operating a direct-injection engine with products of high boiling-point obtained by the extraction or destructive hydrogenation of coal, a tar oil, preferably of an aromatic nature, is introduced into the fuel supply system. The engine may be started on gas oil and flushed with tar oil before being operated with the products, or the engine may be started with a mixture of gas and tar oil. A little wood tar oil may be added to the products which are kept at a temperature of 100‹ C.
Patent GB-1434212-A (GB)
Title: Production of heterocyclic endo alicyclic end capped prepolymers
IPC: C07D487/04
Filed: 1973-03-21
Abstract: 1434212 Unsaturated polyimidazole and polyoxazole prepolymers and foams thereof TRW Inc 21 March 1973 [3 April 1972] 13677/73 Headings C3R C3P and C3C Curable prepolymers are prepared by reacting (A) an aromatic tetramine or dihydroxy or dithiol diamine with each amino group ortho to another or to a thiol or hydroxy group, (B) a dicarboxylic aromatic compound and (C) an end-cap component comprising an endo-compound wherein Y 1  to Y 7  are independently H, Ha, NO 2 , aryl, alkaryl or C 1-6  alkyl or alkoxy, or for Y 7  only, amino; X is CO, O, S, CH 2  or halogen, alkyl or aryl substituted CH 2 ; Z 1  is a direct link, arylene or C 1-4  alkylene; Z 2  is -COF, -COCl, -COBr, -COI, -COOH, -COOR or -NH 2 ; and R is aliphatic or aromatic. (C) may also include acrylic acid. The prepolymers may be cured at 230‹ to 370‹ C. for up to 4 hours at up to 700 atmospheres, optionally in conjunction with an olefinic monomer as cross linking agent. Various suitable reactants and olefinic monomers are specified. Additional cross-linking sites may be provided in the polymer chain by use of olefinic reactants, e.g. stilbene tetramine and pcarboxy cinnamic acid. In examples the prepolymer is prepared in solution in dimethylformamide and obtained as a powder by evaporation; the powder is cured at 350‹ C. to give a rigid foam in Examples II-IV.
Patent GB-103456-A (GB)
Title: Improvements in or relating to Folding Legs for Tables and like Articles of Furniture.
Inventor: CLEMENTS WILLIAM JOHN
Filed: 1916-09-28
Abstract: 103,456. Clements, W. J. Sept. 28, 1916. Folding tables.-In a table provided with legs adapted to be folded under the table top, the legs are held in extended position by bolts engaging sleeves carried by the table frame and legs. The sleeves F on the legs are adapted to fit between, and in line with, sleeves C on angle plates secured to the corners of the table frame. Stops are provided on the frame to prevent complete withdrawal of the bolts.
Patent GB-993571-A (GB)
Title: Improvements in wheel-flange lubrication
IPC: B61K3/02
Filed: 1962-04-10
Abstract: 993,571. Lubricating. C. VOGEL, [trading as W. VOGEL [firm of]. April 10, 1962 [April 11, 1961], No. 13814/62. Heading F2A. In apparatus for lubricating wheel flanges in locomotives or other vehicles running on wheels by means of pneumatically-operated spray heads 7, 8, 9, 10 (Fig. 1), supplied with lubricant through quantity-regulating devices 33 (Fig. 4) by a periodically-operated pump 6 (Fig. 1), the heads 7, 8, 9, 10 and the pump 6, joined by a main pipe 21, are operated by a compressed-air system through a pipe 11) controlled by a valve 13, e.g. an electromagnet valve, operated by an impulse-emitting device 14 in dependence on specific distances of travel. A three-way air supply valve 17 in the main air pipe 11 is acted on by an air-storage device 15, charged periodically from the pipe 11 by the valve 13 attached thereto, and has passages for the pipe 11, a control pipe 16 (with an air throttle 24) from the valve 13 and a venting pipe 25. In a main compressed-air pipe 18 from the valve 17 to the heads 7, 8, 9 and 10 is a non-return valve 26. The valves 13 and 17, the device 15, the air throttle 24 and their connecting pipes, form a self-contained unit on the air pipe 11. Each spray head, connected at 34 to the pipe 18, comprises a shut-off valve (Fig. 4) the spray nozzle 32 of which is closed when the pressure is reduced a certain amount, a valve member 36 carrying a pin 37 extending through the nozzle aperture on closure. On the valve 17 there is a control knob 30 for additional manual operation.
Patent GB-691924-A (GB)
Title: A process for recovering carotene from carotene-containing oils and derivatives thereof
Inventor: BOLDINGH JAN DR
Filed: 1950-06-02
Abstract: Carotene is extracted from oils and derivatives thereof (e.g fatty acids) by contacting them with finely-divided activated carbon which has been freed of oxygen and eluting the carotene from the carbon. The oil is preferably de-aerated prior to treatment and may be warmed or diluted with a solvent (petroleum ether, acetone or ether) to reduce its viscosity.  The eluting solvent is preferably an aromatic hydrocarbon, e.g. benzene, toluene or xylene, and this may be used a number of times until a sufficient concentration of carotene is obtained.  Pure carotene may be obtained from the concentrate.  The absorption and elution may take place on a column, in batches or continuously as in Specification 691,355.  Examples show the extraction of carotene from Bissao palm oil and red palm oil.  Carrot oil may also be used.ALSO:Carbon for the chromatographic treatment of carotene-containing oils is freed of oxygen by (1) treatment at a normal or slightly elevated temperature with a reducing agent, or (2) heating to 350 DEG C or above in an oxygen-free gas such as hydrogen, nitrogen, steam or carbon monoxide or dioxide.  Suitable reducing agents are hydroquinone, formic acid and sodium sulphite, dissolved in benzene, ether, alcohol or water.  After such treatment, the reducing agent is removed by washing with benzene, and the latter expelled by a fat solvent such as petroleum ether, acetone or ether. Examples are given.
Patent GB-794883-A (GB)
Title: Cast cylinder for hydraulic systems
IPC: F16D65/22
Filed: 1956-05-04
Abstract: 794,883. Making composite cylinders; jointing by forging; tube expanders. SCHAFER INDUSTRIEGES SCHWEINFURT. May 4, 1956 [May 4, 1955], No. 13951/56. Classes 83 (2) and 83 (4). [Also in Groups XXVI and XXXIV] In order to prevent the formation of rust in the zones of a wheel brake cylinder not normally engaged by the piston or pistons, a cylindrical sleeve member 9 of non-rusting material is inserted in the cylinder; the sleeve 9 having an outside diameter slightly smaller than the inside diameter of the bore such that when a mandrel of slightly greater diameter is passed through the sleeve 9, the sleeve is expanded and part of the material of the sleeve member 9 is forced into grooves 10 in the wheel cylinder to retain the sleeve member in the cylinder. In the embodiment disclosed in Fig. 3, the length of the sleeve may correspond with the length of the zone of the cylinder bore not normally engaged by the pistons.
Patent GB-717204-A (GB)
Title: Firing means for anti-tank mines or similar weapons
IPC: F42C7/06
Filed: 1952-06-04
Abstract: 717,204. Land mines. SANTUCCI, G. June 4, 1952 [June 4, 1951], No. 14160/52. Class 9(2) An anti-tank mine comprising an explosive container 6 has a domed lid 5 responsive to pressure, so that when a tank passes over the mine the lid is deflected downwardly and thus compresses the air within to deform a resilient diaphragm 3 and thereby initiate the mine. The diaphragm closes a box 4 defined by an upstanding flange on the bottom of the container. Above the diaphragm is an apertured structure supporting a striker 1, a fuse and a detonator. Within the box is a perforator 2 which penetrates the diaphragm 3 when the latter is deformed to a predetermined extent. The firing pin 1 is then forced upwardly to initiate the detonator 28. In the modification shown in Fig. 2 a resilient plate 5<SP>1</SP> spaced from the bottom of the container defines a chamber 25 communicating through a passage 21 with the interior of the mine. On pressure being applied to the mine, the perforator 2<SP>1</SP> is carried upwards by the plate 5<SP>1</SP> to penetrate a flangible disc 22 in the base 23. By this means a sealed chamber 20 formed in the base of the mine by a-partition 24 is put in communication with the chamber 25. The pressure on the diaphragm 3 is thus relieved and the firing pin 1 moves upwards as before. This form of the mine may be modified to increase its sensitivity by providing a small-bore conduit between the passage 21 and the space above the diaphragm 3'. The passage 21 may be closed by a valve 27 to prevent sympathetic explosion of the mine by neighbouring mines. In a third embodiment, the firing means comprises a box 12 supported in the mine and closed at one end by a deformable diaphragm 9 communicating with the interior of the mine through an opening in a cover 9<SP>1</SP>, so that on increase of pressure within the mine the diaphragm moves downwardly pressing a firing pin 7 against a detonator assembly to detonate the mine. The sensitivity may be increased by providing a second diaphragm 13 carrying a perforator 13<SP>1</SP> adapted to fracture an evacuated capsule 11 and thus reduce the pressure within the box 12 causing depression of the diaphragm 9. Mechanical means may be provided for fracturing the capsule. The mine may also be fired by remote control. Fig. 4 (not shown) shows a pressure sensitive chamber connected by a pipe to the interior of the container 6. The mine may have a bracket attached on which is pivoted a bar so that when the mine is straddled by a tank both ends of the bar will be loaded by the tank tracks and the mine will be actuated.
Patent GB-1464175-A (GB)
Title: Operating assemblies
IPC: H01C10/40
Filed: 1974-04-01
Abstract: 1464175 Variable resistors WILHELM RUF KG 1 April 1974 [19 April 1973] 14276/74 Heading H1S [Also in Division H3] An operating spindle assembly, for use with a resistor or conductor track or an insulating baseplate 8, comprises a metal housing 4 which is forced to the base via tabs 7 and carries an operating spindle 2 which drives a wiper carrier 6, the carrier having a protrusion 16 which slides in a slot in housing 4 and engages a movable indicating scale 17, the scale being visible through one or more windows (20, 21, Figs. 2, 3, not shown) in a second housing 10. The scale is constituted by a band which rides over pegs 14, 15. Housing 10 is snap fastened to flanges 13 of housing 4 by means of barbs 11, 12 of different lengths.
Patent GB-1066486-A (GB)
Title: A tool holder for a screw cutting tap or die
IPC: B23B31/08
Filed: 1963-08-16
Abstract: 1,066,486. Machine tool details. D. E. FITTON, and R. A. FITTON. July 3, 1964 [Aug. 16, 1963], No. 14293/65. Divided out of 1,066,485. Heading B3N. A tool holder is locked in a lathe turret (12) and comprises a slidable member (17) carrying a tap (13) keyed to a body (14) at (18). The member is urged inwardly by a tension spring (22) and this movement is resisted by a compression spring (25). In a modification a die holder (17), Fig. 3 (not shown), has a peg (30) which passes through body (14) and engages an adjustable stop (31) to limit the in-feed.
Patent GB-168372-A (GB)
Title: Improvements in or relating to flexible pipe couplings
IPC: B60T17/04
Filed: 1920-05-25
Abstract: 168,372. Howorth, F. W., (Vapor Car Heating Co., Inc.). May 25, 1920. Couplings, disconnectible.-An all-metal articulated coupling for train pipes, either steam or air, has universal joints O<1>, P<1> connected to the coupler heads L<1> by elbow pipes M<1> and to oneanother by straight tubular members N'. Continuity is maintained through the universal joints by flexible corrugated tubular diaphragms, suitably held in the yokes of the joint and made in. two parts 71a, 71b, Fig. 18, held to one another and to a pivoted supporting element 67 so as tolimit the flexure impossible. Springs, such as 47, may be fitted in such a way as to keep the coupler heads off the ground when in disconnected positions. Such springs may be in the form of stout helical springs surrounding the tubular diaphragms.
Patent GB-769762-A (GB)
Title: Means for cooling electrical windings
Inventor: LADELL EMIL
IPC: H05B6/42
Filed: 1955-05-18
Abstract: 769,762. Induction coil for heating. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. May 18, 1955, No. 14314/55. Class 39(3) Electrical windings, especially for heating, have hollow cooling turns 2 arranged at intervals along the winding between solid winding turns 1, each cooling turn 2 consisting of an outer electrically conducting sheath 3 of substantially O or U cross section and an inner'tube 4, the ends 5 of which are bent outwardly from the winding for .connection in an insulating manner to the source of the cooling fluid, while the ends of the sheath are joined with the ends of the solid winding on each side of it. The inner tubes 14 are of the same material as that of the sheath or a different material and have on their outer surfaces a coating of high thermal conductivity. The tube 4 is placed centrally in the sheath 3 or is placed in an open or a semi-closed slot in the sheath. The tubes may be connected in series or parallel with each other. Specification 759,806 is referred to.
Patent GB-992841-A (GB)
Title: Improvements relating to drawers
IPC: A47B88/16
Filed: 1964-04-07
Abstract: 992,841. Drawers. K. H. KOLBL. April 7, 1964, No. 14320/64. Heading A4B. An arrangement for horizontally retaining a drawer 2 in its drawn out position comprises on the lower edge of drawer rear wall 7 a support strip 8 and behind an upper edge a catch arm 9. The strip 8 and arm 9 engage U-shaped members 3 horizontally arranged on the inside of the cabinet front wall 1. A stop 12 prevents accidental complete removal of the drawer.
Patent GB-1207092-A (GB)
Title: Phase shift detector
Inventor: GAINES BRIAN RONALD
IPC: G01S3/52
Filed: 1969-03-19
Abstract: 1,207,092. Selective signalling. STANDARD TELEPHONES & CABLES Ltd. 19 March, 1969, No. 14389/69. Heading G4H. [Also in Division H4] In a system for measuring the phase of a signal 9, Fig. 1, of the form sin (wt + #) obtained from, for example, a doppler radar system, the signal is multiplied 14, 15 by coswt and 20, 21 by sinwt, the products are integrated 17, 23 to provide signals proportional to cos# and sin#, and then, the integration being complete, two gates 25, 26 are opened to cross-couple the integrators to form an oscillator which is so arranged that it starts to oscillate with a phase of - # (i.e. the initial amplitude of the output signal will not be zero but the amplitude that exists an angle # before zero) and the time taken for the oscillator output signal to reach zero is measured by counting 27 relatively high frequency clock-pulses 28. The multiplication is effected by a hybrid analogue-digital arrangement. The signal sin(wt + #) appearing on lead 9 in analogue form, is gated 14, 15 and 20, 21 with pulse trains synthesized by a control unit 11 to represent the signals cowl and sinwt. These signals are produced by a counter having a capacity of sixty-four by an arrangement of gates (Figs. 2, 3, not shown).
Patent GB-333255-A (GB)
Title: Fire preventing means for motion picture projecting machines
IPC: G03B21/18
Filed: 1929-05-08
Abstract: 333,255. Withers, J. S., (Sentry Safety Control Corporation). May 8, 1929. Kinematograph apparatus. - Ignition of the film in a projector is prevented by including in the lamp circuit a switch which is biassed to open on the failure of the current in the motor-circuit. The arrangement shown in Fig. 1 comprises two projectors having motors 6, 7 and arc-lamps 13, 12, respectively. The motors are fed in parallel from mains 4, 5 provided with a fuse 8 and are independently controlled by switches 9, 10. The arcs 12, 13 are in series with a D.C. generator 11 and are independently controlled by switches 14 - - 17. The generator circuit is controlled by a switch 18 biassed to open by a spring and closed by the energization of a solenoid 20 when included in the mains circuit bv the switch 19. Failure of the mains service to the motors allows .the generator circuit to be broken and so extinguishes the arcs. In a modification the solenoid may be arranged in series with each of the motors and is arranged to control the generator for each arc. In a further modification, the motors may be arranged in series with each other and with the solenoid which controls a common generator supplying all the arcs, switches being provided to shunt the motors and arcs when required.
Patent GB-593301-A (GB)
Title: Rotary pump
IPC: F04C2/344
Filed: 1945-06-07
Abstract: 593,301. Rotary pumps; shaft packing. DEHN, F. B. (Adel Precision Products Corporation). June 7, 1945, No. 14403. [Classes 110 (ii) and 122 (v)] A roller-vane pump with one inlet pipe 23 leading to pumping- chamber inlets a, b, and two delivery pipes fed by chamber outlets c, d, has an axial floating connection between the pump-rotor shaft 35 and the driving-motor shaft 15. The rollers, of hard material, have freedom to move from one side to the other of the slots 36, under liquid pressures. The inlet 23 leads to inlets a, b through holes 21 in a gasket 20 against which the stator 25 is pressed by a ring 26 which is screwed against a packing ring 27. Bearing blocks 30, 31 are tapered in the stator bore 29, the annulus 32, whose bore forms the pumping chamber, being clamped between the blocks. A slip coupling comprises a sleeve 43 loosely fitting on the shaft 15 to which it is held for rotation by a pin 44 in slots 45. The sleeve extends over the shaft 35 which is driven by a pin 46 in open-ended slots 47. Sealing means comprises a friction ring 48, preferably made of copper and carbon, and axially spring-pressed discs 51, 52. Pump suction acts on the bore of the ring 48, by way of a conduit in the shaft 35 to help sealing and also remove leakage fluid. A chamber c, between the motor and the pump, is vented to atmosphere. The pump is very small. In a modification, the pump is made larger by elongating the pumping chamber having a number of inlets and complementary outlets leading to two outlet pipes.
Patent GB-180208-A (GB)
Title: Improvements in or relating to extra air inlets for internal-combustion engines
IPC: F02D9/00
Filed: 1921-05-24
Abstract: 180,208. Roxburgh, A. B. May 24, 1921. Piston valves.-An extra air valve for an internal combustion engine comprises an axially sliding plunger c controlling cne or more air inlet ports d<1>, d<2>, d', in a flange a fitted in the induction pipe, the return spring h for the plunger being disposed externally of the flange a. The plunger may be operated by a Bowden wire g or by a nonflexible connection such as rods and levers. The air inlet ports d<1>, d<2>, d<3>, which open into a circumferential groove p around the aperture e in the flange, may be all the same size or may increase in size in the order in which thev are uncovered by the plunger. When used in conjunction with a dual or twin carburettor, the flange a is provided with two apertures e each provided with inlet ports, the two sets of ports being simultaneously controlled by a single plunger having two ports of different diameters.
Patent GB-311379-A (GB)
Title: Salvage-buoy for submarine vessels
IPC: B63G8/41
Filed: 1929-05-09
Abstract: 311,379. Albers, F., and B÷geholz, A. May 10, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Sunken objects, indicating position of.-Means for indicating the position, and facilitatng raising, of submarine vessels comprises one or more buoys normally resting on a perforated rubber packing ring K on the deck of the vessel, and each comprising a compartment B open downwardly and adapted to be exhausted of air through a pump H and pipe E within the vessel, whereby the buoy is held to the versel; the buoys are released by opening valves J. Each buoy contains a drum with a small rope 1 connected to a large rope 2 on a drum d within the vessel and for use in lifting the latter. A vacuum indicator is provided and comprises a piston G adapted to be raised in a cylinder F. Electrically operated means may also be provided to hold the buoys.
Patent GB-650939-A (GB)
Title: Improvements in or relating to the production of bis-alkylol-amides of dimerized fatty acids
IPC: C07C233/12
Filed: 1947-06-02
Abstract: Bis-alkylolamides of a dimerized fatty acid of the formula <FORM:0650939/IV (b)/1> where R is the residue of a dimerized polyunsaturated fatty acid of approximately 18 carbon atoms (the dimer being a dicarboxylic acid of the cycloaliphatic series), n is 2-4, and R1 is hydrogen or -CnH2n.OH, are prepared by heating one mol. of the dimerized polyunsaturated fatty acid or a lower alkyl ester thereof with at least two mols. of an alkylolamine of formula NHR1.CnH2n.OH, e.g. mono-or di-ethanolamine, or mono- or di-butanolamine.  The acids, which are dimerized by heating, are obtained by hydrolysis of drying oils such as linseed or fish oils. The condensation with the alkanolamine is preferably carried out at 130-200 DEG  C.  An inert solvent may be used, with azeotropic removal of water.  In the examples the dimerized cottonseed fatty acid is reacted (1) with monoethanolamine, and (2) diethanolamine to give the corresponding amides; (3) the dimethyl ester of dimerized linseed acid is similarly reacted with ethanolamine; dimerized soya bean fatty acid is reacted (4) with propanolamine; (5) with 2-amino-1-butanol; and (6) the dimethyl ester of dimerized tung oil fatty acid is reacted with ethanolamine.  Specification 650,940 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the reaction of the above amides with lower alkylene oxides, e.g. ethylene, propylene and butylene oxides, epichlorohydrin, and glycidol to give water-soluble products.  The reaction may be carried out by heating in a polar solvent in the presence of a catalyst such as triethylamine, or by heating under pressure without a solvent in presence of e.g. sodium alcoholate. This subject-matter does not appear in the Specification as accepted.