baber/WOPTO huggingface dataset:
Patent GB-622006-A (GB)
Title: Improvements relating to electromagnetically operated switches
IPC: H01H43/00
Filed: 1947-02-28
Abstract: 622,006. Electrically released switches. WILMOT-BREEDEN, Ltd., and STEPHENSON, C. H. Feb. 28, 1947, No. 5813. [Class 38(v)] An electrically-released switch is used to permit the operation of a fluid-pressure system, such as the window-operating mechanism of a vehicle, a predetermined number of times after the main switch of the vehicle has been opened. The electrically-released switch has a solenoid 19, which attracts a plunger 18 against the pressure of a spring 20 to bring the switch to its normal " on " position. The plunger 18 has ratchet teeth 21 which co-operate with a fixed pawl 22 and a spring-loaded pawl 23 carried by a plunger 24 which is moved against the pressure of a spring 25 by a further solenoid coil 27. A moving roller contact 12 mounted on the plunger 18 co-operates with a pair of relatively insulated fixed contacts 9, 10 and a spring- loaded contact 14. In the system shown, when the main switch in line 29 is open several operations of a motor under the control of a fluid pressure switch (not shown) will result in the repeated energization and de-energization of the coil 27, which, as coil 19 is not energized, permits the step-by-step downward movement of the spring-loaded plunger 18 as the pawl plunger 24 moves in and out. After the required number of operations of the motor, the roller 12 will have moved far enough for it to move suddenly from contact 9 to 10 due to the action of the V- shaped contact 14 on a spring-loaded " lostmotion" connection between the roller 12 and plunger 18. The motor circuit is now open, but the closure of the main switch causes the energization of coil 19 which retracts the plunger 18 fully to reset the mechanism.
Patent GB-575657-A (GB)
Title: Improvements relating to the production of perforated designs in metal
IPC: B44C1/22
Filed: 1944-03-29
Abstract: 575,657. Etching. BOWDEN, C., and BULL, A. J. March 29, 1944, No. 5822. Drawings to Specification. [Class 100 (ii)] [Also in Groups XXII and XXXVI] Perforated designs are produced in plates of metal by indenting the design by a punch to a depth corresponding to the finished thickness of the disc or article to be produced and then removing material from the back of the plate by an etching liquid or electrolyte, whilst the front surface is protected by a resist, until the desired pattern is exposed as a perforation in the plate. The plate is supported by a polished steel &c. plate against the thrust of the punch, the leading face of which is lapped flat. A single punch may be used with a spacing template to produce a number of impressions successively or a multiple punch may be employed but all the designs impressed are etched simultaneously. The method may be applied to the production of fixed slits for spectographic work, television scanning discs and other photoelectric devices, and to the production of small holes in nozzles, carburettors, atomizers, wire-drawing dies, and spinnerets for extruding artificial fibres.
Patent GB-424920-A (GB)
Title: Improvements relating to trunk communication cables, in particular for the transmission of high frequency currents
IPC: H01B11/20
Filed: 1934-02-22
Abstract: 424,920. Electric cables. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Feb. 22, 1934, No. 5880. Convention date, Feb. 22, 1933. [Class 36] In order to prevent mutual interference between different " double conductors " i.e. conductors comprising out and return elements, the two elements are so arranged that their " electric axes ", i.e. the loci of the centroids of their cross-sections, are coincident and the pair are enclosed in a sheath of magnetic material. Fig. 1 shows an arrangement of four such double conductors, each consisting of two concentric conductors 31 .. 34, separated by an air space and a spiral cord 35 and enclosed in insulation 36 and a magnetic sheath 37. The sheaths 37 are in electric contact with each other and an enclosing sheath 38, but may be insulated. The air space and cord 35 may also be replaced by solid insulation. Fig. 3 shows an arrangement where each element of each double conductor consists of two conductors in parallel, the conductors 53, 54 of one element being situated at opposite angles of a square and the conductors 55, 56 of the other element at the other two angles. The magnetic sheath should be of material of high resistance and high permeability, it may be divided transversely, or may be made of powdered material applied to a strip of paper &c. wound helically about the conductor.
Patent GB-1089548-A (GB)
Title: Stoving lacquers
Inventor: BRUNNMUELLER FRIEDRICH
IPC: C09D167/08
Filed: 1965-02-11
Abstract: A stoving lacquer comprises at least one organic solvent and a mixture containing (i) at least 30 wt. per cent of an alkyd resin from (a) a C8- 20 aliphatic monocarboxylic acid; (b) a mixture of C4- 10 dicarboxylic acids, 1 to 80% being, 1,2-dihydrophthalic acid; (c) a C3- 10 higher than dihydric alcohol; and optionally (d) a C4- 10 higher than dicarboxylic acid; and (e) a C2- 10 dihydric alcohol, and (ii) up to 70% of an "aminoplast resin."  The term "aminoplast resin" is defined as including copolymers of N-alkoxymethyl amides of ethylenically unsaturated carboxylic acids as well as conventional etherified urea- or melamine-formaldehyde condensates but no specific example of the use of such co-polymers is given.  The lacquers may include curing catalysts, flow promoters and other binders, e.g. epoxy resins. They may be used to lacquer metals, e.g. sheet metals. In the example the solvent is xylene and TiO2 pigment is included.ALSO:A stoving lacquer comprises an organic solvent and a mixture containing (i) at least 30 wt. % of an alkyd resin from (a) a C8-20 monocarboxylic acid; (b) a mixture of C4-10 dicarboxylic acids, 1 to 80% being 1,2 dihydrophthalic acid; (c) a C3-10 higher than dihydric alcohol; and optionally (d) a C4-10 higher than di-carboxylic acid; and (e) a C2-10 dihydric alcohol, and (ii) up to 70% of an "aminoplast resin". The term "aminoplast resin" is defined as including copolymers of N-alkoxymethyl amides of ethylenically unsaturated carboxylic acids as well as the conventional etherified urea- or melamine-formaldehyde condensates but no specific example of the use of such copolymers is given.  The lacquers may include curing catalysts, flow promoters and other binders, e.g. epoxy resins. They may be used to lacquer metals, e.g. sheets, and may be stoved at 80 to 180 DEG C.  In the Example the solvent is xylene and TiO2 pigment is included; the lacquer is sprayed onto degreased and derusted iron sheets.
Patent GB-249658-A (GB)
Title: Improvements in or relating to lamps
IPC: F21S13/00
Filed: 1925-03-04
Abstract: 249,658. Tyer & Co., Ltd., and Lewis, W. W. March 4.1925. Vehicle and like lamps.-In a vehicle or like lamp comprising a top draughtchamber a, a bottom plate b and two side plates c all cast in one piece, the lamp body, which is preferably of rectangular shape and made of aluminium, is surmounted by an openended arched top d also formed as a casting and secured to the body by means of a handle e. The handle has side members f passing through the arched top and the draught-chamber and the lower portions of the side members are preferably of reduced crosssection and are secured to the lower side of the top plate g by means of nuts h. The front of the lamp is also formed as a casting and is hinged at its upper part and kept closed by a spring catch mounted on the bottom plate, and the body is cast integrally with bracket lugs n. The lamp is ventilated by holes r, s, t formed in the bottom plate b, the top plate g, and the side plates c respectively, downdraught being prevented by a baffle plate u secured to the top plate. The red bull's-eye y may be replaced by an adapter for an electric lamp bulb.
Patent GB-760108-A (GB)
Title: Improvements in the heating of railcars
Inventor: SPANNER EDWARD FRANK
IPC: B61D27/00
Filed: 1953-03-04
Abstract: 760,108. Heating by circulation of liquids. SPANNER BOILERS, Ltd. June 3, 1954 [March 4, 1953], No. 5989/53. Class 64(2) A hot-water circulating system, for space-heating in a railcar which is driven by an I.C. engine such as a diesel engine 1, includes a boiler 2 with automatically-igniting oil burner 4, a jacket of the engine 1 with a by-pass 9 and a water heater 3 fed with exhaust gas from the engine also with a by-pass 9, the operation of the burner 4 and the opening or closing of the by-passes being controlled respectively, by a switch 16 and by valves 15, 17, operated by the temperature of the water flowing through them. On starting from cold, the burner 4 with its electric pump is started together with a hot-water circulating pump 8 so that hot water circulates to panel space-heaters 7 and through the by-passes 9 back to the boiler 2. When the water temperature reaches 100‹F., the valve 15 is closed by thermostat and water flows through the engine jacket to facilitate starting. Heat from the engine aids further rise in temperature to 120‹F. so that the valve 17 is closed by its thermostat and the water passes through the heater 3 to gain heat from the exhaust gases conducted through a pipe 11. When 180‹F. is reached, the switch 16 operated by thermostat shuts off the burner 4 and the water is heated solely by engine waste heat. The water pump 8 can be shut off and its by-pass 13 opened simultaneously by a manual switch 25 so that the engine pump 23 alone maintains the hot water flow. Should the temperature of the water flowing to the engine jacket exceed 140‹F. a valve 19 is closed by its thermostat to shut off a by-pass 9 of an aircooled radiator 5. If the circuit temperature drops, the boiler switch 16 closes to re-start the burner 4. Manual valves 20 are provided in the by-passes 9 of the radiator 5, engine 1 and heater 3. The Provisional Specification describes also a system in which a boiler may be by-passed.
Patent GB-698564-A (GB)
Title: A method of decolourizing neutralised fatty oils
IPC: C11B3/06
Filed: 1951-03-13
Abstract: Fatty oils are decolourized and improved in flavour and odour by first neutralizing the free fatty acids, separating the soap <PICT:0698564/III/1> formed from the oil and then mixing with the oil an aqueous solution containing a salt of a strong base and a weak acid, such as soda or secondary sodium phosphate.  The free fatty acids are preferably neutralized with caustic soda lye, and the aqueous solution of the salt may also contain a strong neutralizing agent such as caustic soda lye.  The aqueous solution of the salt preferably has a pH value between 11.0 and 12.8 after dilution 100 times, and the time of contact may range from 10 to 30 minutes. The temperature during the final stage must be sufficiently high to cause any emulsion formed to be broken, such as 50-80 DEG C.  The aqueous solution is preferably mixed with the unheated oil after the soap has been separated or the oil may be cooled therebefore. The temperature is then raised immediately before the precipitated colouring matter is to be separated.  The soap produced by neutralizing the fatty acids may be separated by centrifuging, preferably before the lye has been mixed with the oil for two minutes.  The aqueous solution may be mixed with the oil in batches.  In a suitable plant, the oil is pumped through a heater 2, a mixer 5 where it is dosed with lye, to a separator 3.  After separation of the scap, the oil is pumped to a mixer 7 into which the aqueous salt solution is fed and the mixture is then led through a vessel 9, which may be provided with an agitator, to a final separator 10 to recover the purified oil.  In examples, rape-seed oil is purified by the process.
Patent GB-598106-A (GB)
Title: Improvements in photographic silver salt emulsions
IPC: G03C1/06
Filed: 1944-03-31
Abstract: A hydrazine derivative is formed by reacting hydrazine hydrate with o-benzoylbenzoic acid in methanol solution.  n-Amylsuccinic dihydrazide is prepared by condensing diethyl n-amylsuccinate with hydrazine hydrate.  4 - (p - Chlorophenyl) - semicarbazide is prepared by refluxing p-chloraniline with nitrourea and then refluxing the product with hydrazine hydrate.
Patent GB-802284-A (GB)
Title: Improvements in or relating to the purification of gases
Inventor: MARSH JOHN DAVID FRANCIS
IPC: C10K1/10
Filed: 1956-02-27
Abstract: 802,284. Purifying gases. GAS COUNCIL. Jan. 30, 1957 [Feb. 27, 1956], No. 6058/56. Class 55 (2). A process for the simultaneous removal of hydrogen sulphide and hydrogen cyanide from fuel gas comprises washing the gas with a neutral or acidic aqueous solution of copper sulphate. Fuel gas, preferably tar- and ammonia-free, is passed upward through a washer 1 in counterflow to an aqueous solution of copper sulphate and sulphuric acid, the hydrogen sulphide content of the gas being thereby lowered from 420 to 0.03 grains per 100 cu. ft. and the hydrogen cyanide content from 80 to 3 grains per 100 cu. ft. The wash liquor passes to a filter 2 where the filter cake is washed with water and passed to a dryer 9, the clear filtrate with added water being passed by a pump 3 to the top of a scrubber 4. The filter cake, comprising sulphide and cyanogen compounds of copper is dried at 9 and crushed at 10 and the powder is passed by a pump 11 to a roaster 12 having a fluidized bed. Combustion air is supplied by a blower 13, the temperature of the bed being limited to 700‹ C. by spraying in acidic copper sulphate solution from a pump 15. The resulting copper oxide and roaster gases are cooled at 14 and contacted by a downward flow of wash liquor in the scrubber 4 which dissolves part of the copper oxide and removes the acid fog from the roaster gases. The solution passes to a stripper 5, where sulphur dioxide is removed by a counter current of air, and then to a dissolver 6 where the dissolution of the copper oxide is completed. Some regenerated acidic copper sulphate solution is passed through a pump 7, cooled and re-used in the washer 1 and some is used as a coolant in the roaster 12. The roaster gases, freed from copper compounds in the scrubber 4 are mixed with sulphur dioxide-laden air from the stripper 5 and used for making e.g. sulphuric acid.
Patent GB-1509991-A (GB)
Title: Hydraulic system for operation of a winch
IPC: B66D1/44
Filed: 1975-02-13
Abstract: 1509991 Hydrostatic transmission control BERGENS MEKANISKE VERKSTEDER AS 13 Feb 1975 [21 Feb 1974] 6074/75 Heading F2W In a hydrostatic transmission for a winch wherein a pair of fixed displacement pumps 1a, 1b delivers through a reversing and throttle valve 3 to four dual capacity motors 2a, 2b, 2c, 2d connected in parallel and driving a common output shaft 37, valves 21a, 21b, 21c, 21d selectively connect the motors to the pumps and selectively determine the capacity of at least one of the motors to provide eight speed ratios. A pressure reducing valve 4 controlled in response to pump delivery pressure throttles the return line when the motors tend to overrun the pumps during load lowering. The braking effect on the motors is limited by a by-pass valve 6 controlled by pilot valves 7, 8 and 9. The pressure in the line having the higher pressure is transmitted through a shuttle valve 35 to the valves 6, 7. When the pressure exceeds a predetermined maximum value the valve 7 opens and permits the valve 6 to open and thus limit the pressure to the predetermined value for maximum driving torque as maximum braking. The valve 8 is responsive to return line pressure and opens when the latter exceed a predetermined value lower than the maximum predetermined value. When the valve 8 is open the valve 6 limits the overrun braking. When the valve 9 is open the valve 6 opens to permit unrestricted overrun of the motors. If during load lowering the output shaft speed exceeds 140 r.p.m. a pulse generator 30, 31 energizes a relay 32 to actuate a signal 34 and if the speed exceeds 150 r.p.m. the relay actuates a valve 33 to disconnected the return line pressure from the valve 8 which closes and thereafter maximum braking inder the control of the valve 7 is applied to the motors. When the reversing valve 3 is moved to its central neutral position the return line pressure is disconnected from the valve 8 which closes for maximum braking of the motors.
Patent GB-661978-A (GB)
Title: Improvements relating to spot-weld electrodes
Inventor: POPPE OLAV
IPC: B23K11/30
Filed: 1949-03-05
Abstract: 661,978. Making spot-welding electrodes. ROVER CO., Ltd. Feb. 9, 1950 [March 5, 1949], No. 6078/49. Classes 83 (ii) and 83 (iv). In reclaiming a water cooled, copperalloy spot - welding electrode, the working end is severed from the shank through the end of the water passage and a new working end having a spigot is soldered to a mating spigot provided on the shank without allowing the heat to travel and reduce the tip hardness. The tip 12, Fig. 1, of an electrode is severed from the shank 20 at 23 and an axial spigot 16, Fig. 2, is turned thereon to engage a recess 17 in a working end provided with the end 24 of the water passage 15. Tinman's solder and resistance heating are employed to join the parts quickly. A worn dressed tip may be replaced, after unsoldering the joint, by a new tip. Spanner flats 21 are provided on the electrode and on a cranked electrode described. Silver solder and easy flow types may be used.
Patent GB-530304-A (GB)
Title: Improvements in or relating to garment and like pressing machines
IPC: D06F71/06
Filed: 1940-02-22
Abstract: 530,304. Garment presses. BRAITHWAITE & SON, ENGINEERS, Ltd., I., BANKS, W., and O'BRIEN, T. H. Feb. 22, 1940, No. 6121/39. [Class 138 (ii)] The press described in Specification 504,727 wherein the swinging head is rocked through pivoted cam-shaped levers from a lever actuated by a hydraulic cylinder constructed as described in Specification 526,880 is according to this invention actuated by a pneumatic cylinder supplied with compressed air under the control of a valve which may be actuated by electrical or by manual mechanical means and is returned by a weight or spring. Further, two presses operating in tandem may have their control valve operating means interconnected so that the presses operate alternately, as for example the control of the solenoid actuated valve described in Specification 526,880, which also describes the dash-pot device for decreasing the motion of the head when almost closed and almost fully open. Fig. 4 shows a slide valve F' actuated through a spindle F by a solenoid S' to control the passage of compressed air from a passage A to one or other of the ports C, D connected with the lower and upper parts respectively of the pneumatic cylinder of the press, the valve being returned by a weight E or a spring when the solenoid is de-energized. Fig. 6 shows an arrangement for operating the valve manually necessitating the depression of two levers G, H spaced apart so that both hands of the operator are required for actuation as in the case of the solenoid actuation. The lever G is connected by a link M to the valve spindle F and is pivoted on a link L connected to a lever K on a shaft J on which the lever H is fixed. An arm R on a shaft N which also carries arms O, P adapted to engage lugs O<SP>3</SP>, P<SP>1</SP> on the levers G, H is normally held between springs Q, U on a slidable rod S so that the lugs are free. As the press closes a projection on the swinging head engages a collar S<SP>2</SP> and slides the rod S so that compression of the spring U overcomes the effect of the spring Q and turns the shaft N to engage the arms O, P with the lugs whereby the levers G, H are held with the valve raised so that compressed air can act on the piston to complete final closing of the head and maintain the pressure. A modification is described for a pair of presses operating in succession.
Patent GB-384859-A (GB)
Title: Improvements in or relating to feed regulators for steam generators, evaporators andsimilar plant
IPC: F22D5/14
Filed: 1932-06-04
Abstract: 384,859. Valve components. BROWN, A. S., 9, Langlands Road, Newlands, Glasgow. June 4, 1932, No. 6171. [Class 135.] Closure members, piston. - Feedwater regulators comprise a balanced inlet valve consisting of an axially hollow ported piston 1 with imperforate ends.
Patent GB-384300-A (GB)
Title: Petrol lighter
IPC: F23Q2/08
Filed: 1931-02-27
Abstract: 384,300. Frictional pocket igniters. BOHME,-, (trading as BÍHME, G. G. H.), 10, Offenbacherstrasse, Rumpenheim-on- Main, Germany. Feb. 27, 1931, No. 6173. Convention date, March 14, 1930. Void [Published under Sect. 91 of the Acts]. [Class 75 (iii).] The pivoted spring-loaded wickcap carrier 18 is held normally in the closed position by a projection 20 engaging in an aperture 10 in an upstanding flange 22 on a spring-pressed lever 9 connected with the friction-wheel 8 so that, on swinging the lever 9 in the direction of the arrow a against the action of the spring 11, the carrier 18 is released and swung into the open position and, on releasing the lever, the friction-wheel is rapidly rotated to ignite the wick 15. The projection 20 is formed with a bevelled lower edge 21 so as to re-engage automatically the lever 9 when the carrier 18 is pressed down into the closed position. The friction-wheel 8 is preferably connected to the lever 9 by means of a tube around which is coiled the spring 11.
Patent GB-170794-A (GB)
Title: Cigarette, loose leaf pocket wallet
IPC: A24F17/00
Filed: 1921-02-24
Abstract: 170,794. Levinson, F. E. Feb. 24, 1921. Flexible-band files. -A combined looseleaf pocket - book, wallet, and cigarette case comprises loose leaves m having slots through which straps f, , f<1> pass. The straps f, f<1> are secured to the case and after passing through the leaves are secured by press-buttons g, g<1>. A cigarette pocket a, a pocket c, and small pockets i, j are also provided.
Patent GB-1377494-A (GB)
Title: Method of and apparatus for pressurising a container with a non- flammable gas
IPC: F17C5/06
Filed: 1971-03-05
Abstract: 1377494 Welding by pressure JOSEPH LUCAS (INDUSTRIES) Ltd 21 Feb 1972 [5 March 1971] 6216/71 Heading B3R [Also in Division F2]  After a container 20 has been charged with gas through an inlet 23 around a closure member 24, the closure member 24 is welded to the inlet 23 by means of a welding electrode 17 which projects through an insulating bush 18 to abut the closure member 24. The closure member 24 is formed with ridges 27 (Fig. 2) which enable the gas to enter the container 20 during charging but which disappear on welding. Current supply to the electrode 17 is controlled by a time- and pressure-responsive unit 19.
Patent GB-1130353-A (GB)
Title: Manufacture of textile fabrics
Inventor: HASLER WILLIAM SANDFORD
IPC: D06B3/34
Filed: 1965-02-13
Abstract: 1,130,353. Tufting machines, knitting, treating warp yarns. SINGER-COBBLE Ltd. 14 Feb., 1966 [13 Feb.,- 1965], No. 6311/65. Headings D1C, DIE and D1G. Selected yarns on their way from a source of supply to a textile machine, which may be either a tufting machine, or a warp knitting machine, or a loom, are subjected to a treatment step, and the said yarns, or the remainder as appropriate, then pass through a storage zone of variable capacity. As described, the treatment comprises a dyebath, and the storage means includes a roller or rollers adapted, on displacement thereof, to vary the path length between the dyeing section or between such section and a tufting machine.