baber/WOPTO huggingface dataset:
Patent GB-1508427-A (GB)
Title: Direction indicator switch
IPC: B60Q1/42
Filed: 1974-07-17
Abstract: 1508427 Self-cancelling direction-indicators LUCAS ELECTRICAL Ltd 9 July 1975 [17 July 1974] 31567/74 Heading G4Q A direction-indicator switch for a road vehicle includes a body 11, a rotor 14 rotatable relative to body 11 about a first axis 15 between a central rest position and first and second operative positions on opposite sides respectively of the central rest position, detent means (notches 18, 19, 21 and a spring-loaded plunger 22, Fig. 2, not shown) on the body and on the rotor for resiliently retaining the latter in any one of its three positions, a detent release member 23 movable with the rotor and movable relative to the rotor to release the detent means, and a pawl 26 resiliently urged towards a position wherein in use the pawl projects into the orbit of a striker rotating with the vehicle steering shaft; the pawl is permitted to move to the latter position when the rotor is moved to either its first or second operative position; the pawl when in the projecting position is capable of pivoting relative to the body 11 about either of a pair of spaced parallel axes-the axes of posts 27, 28-; and the pawl includes parts co-operating with the detent release member 23 whereby when the rotor is in one or other of its operative positions and the pawl is moved about the appropriate one of the spaced parallel axes by cancelling movement of the striker, then one of the pawl parts co-operates with the detent release member to move it relative to the rotor thereby releasing the detent means and freeing the rotor for movement back to the central rest position.
Patent GB-505842-A (GB)
Title: Improvements in or relating to display apparatus
IPC: G09F13/00
Filed: 1937-11-17
Abstract: 505,842. Moving signs. GOTTHARDT, C. F. Nov. 17, 1937, No. 31572. [Class 3 (i)] In an advertising or like display device of the type comprising transparent or translucent drums located coaxially one within the other, one or both of which. are rotated relatively by air convection currents rising from an interior illuminating lamp, means are provided for centering the pivotal axis of one drum within the other by adjusting at least one pivot bearing in a plane substantially at right-angles to the axis of the other drum. The Figure shows the upper pivot 31. of the inner drum 37 carried by a spring-strip bracket 34, the outer end of which is clamped by a nut 16a to a lug 12 on a ring 10 supported by hollow struts 15. A distance piece 35 holds the bracket 34 in adjusted position. The lower bearing 30 lies in the angle between two lamps 38. A brake may be incorporated to prevent too high speed, and would consist of an expansion member carrying a felt brake pad directed toward the spindle or periphery of the drum. The drums may be of inverted frusto-conical form.
Patent GB-488347-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/36
Filed: 1937-11-17
Abstract: 488,347. Vacuum cleaners. ELECTROLUX, Ltd. (Aktiebolaget Elektrolux) Nov. 17, 1937, No. 31609. [Class 8 (i)] In a vacuum cleaner of the type in which a motor-fan unit 29, Fig. 4, and a main dust bag are enclosed in a casing 11, the discharge opening is provided with vanes 44, Figs. 4 and 6, for directing the air current away from the surface being cleaned. The vanes 44 are carried by a sleeve 42 which is moved axially to the left when a blowing hose 15 is connected to the discharge opening. In the arrangement shown, the sleeve 42 controls ports 41 through which part of the air is discharged in normal use. The air discharged by the motor housing 29 passes through a filter comprising a cloth 59 between discs 56, 57 spaced by a perforated cylinder 58. The discharge passes through a sleeve 38 supported between the disc 57 and an end cap 34 secured to the casing 11 by means of screws 35. Part of the air passes through the ports 41 to ports 37 in the cap 34, the ports 37 also being upwardly directed. The hose 15, when inserted, presses the sleeve 42 to the left against the action of a spring 45. The hose is locked by means of balls 14a, which engage a groove in sleeve 38, and are wedged by a tapered sleeve in the hose union 14. In a modification, the hose is secured by a spring latch. In place of the screws 35, the cap 34 may be secured by a central screw, rotatable in a sleeve carried in the cap, and engaging a screwed sleeve carried in the casing 11. As shown in Fig. 13, the screw engages a screwed socket 85 carried by an arm 86. The head 74 of the screw 65 is accessible by pushing the sleeve 42 to the left. The arm 86, which is rotatable on a pin 77 and is secured by a spring detent 91, serves to secure an auxiliary filter 99. The latter comprises a filter bag carried by a ring 96 and a disc 94, which are connected by spring fingers 95.
Patent GB-599303-A (GB)
Title: Improvements in gas and vapour ignition devices
IPC: F23Q2/28
Filed: 1945-11-23
Abstract: 599,303. Electric igniters. WALKER, S. W. Nov. 23, 1945, No. 31611. [Class 75 (iii)] An electric lighter comprises a petrol or like torch 12 detachable from a torch locating pin 1, Fig. 2, or cradle, which can move within restricted limits relative to an assembly 10 provided with fuel replenishing, igniting arc furnishing and flame extinguishing means. The torch 12 may be a friction fit on the pin 1, pivoted by links 5, 34 to the casing 10, so that on withdrawing the torch, it swings upwardly to contact a conducting brush 13 mounted in a rotatable holder 38. A blade 2 may be attached to the holder 38 so that when the holder is rocked, the blade contacts a conductor 39 to complete a circuit through the brush 13, conductor 39, blade 31, induction coil 27 or transformer, battery 25, casing 10, links 5, 34 and the torch 12, sparks being produced to ignite the torch when it breaks contact with the brush. The end of the pin 1 may be provided with an insulating tip 33 so that when the pin is returned to normal position, this tip depresses a disc 30 on a diaphragm 20 and causes a blade 42 to close against the blade 31 and free it from contact with the conductor 39. The torch 12 may be provided with one or more layers of wire gauze interleaved with asbestos paper 29, and have telescoped within the torch a spirallywound wire tube 15, Fig. 3, to grip the pin 1 frictionally so that as the torch is withdrawn from the casing 10, the pin 1 is rocked to cause the torch to contact the brush 13, after which the torch may be detached from the pin 1 which is returned into the casing by a spring 6. The diaphragm 20 is adapted to move to close the contacts 31, 39 when the torch 12 is withdrawn, and also to force a puff of inflammable gas to issue through a slot in a saturated pad 26, which may be fed from a. reservoir of petrol or methylated alcohol by a wick 8. The space immediately surrounding the brush 13 may be enclosed by a shroud having a hole for the torch and air ingress vents, so that momentary ignition of the torch 12 can take place upon uninterrupted withdrawal of the torch, but the ventilation being sufficiently restricted to extinguish the torch if'its withdrawal from, or replacement into the casing is delayed. In a modification, the links 34 are omitted and the pin 1 is adapted to slide, within limits defined by shoulders on the pin, in a bush in the diaphragm 20, which in this case is positioned as shown by the dotted line 41, the insulating lip 33 of the pin operating the blade 31 by direct pressure or release.
Patent GB-191243-A (GB)
Title: Improvements in and relating to a process for the manufacture of cement articles andof reinforced concrete members and the like
IPC: C04B40/02
Filed: 1921-11-25
Abstract: 191,243. Roucka, O. Nov. 25, 1921. Stone, hardening.-Cement or concrete articles' are heated in a closed vessel at the rate of 1-5‹ C. per minute, to a temperature of 60-80‹ C., small quantities of steam, insufficient to cause condensation, being admitted. The heating is then continued at a rate of 0.1-1‹ C. per minute by the admission of steam either alone or acting in conjunction with external heating means, until a pressure of 7-13 atmospheres is attained.
Patent GB-1028873-A (GB)
Title: The production of crimped polyacrylonitrile filaments
Inventor: DAWSON JOHN BURT
IPC: D01F8/08
Filed: 1961-09-04
Abstract: 1,028,873. Crimped polyacrylonitrile filament. COURTAULDS Ltd. Sept. 3, 1962 [Sept. 4, 1961], No. 31671/61. Heading B5B. Crimped polyacrylonitrile filaments are made by spinning simultaneously and adjacently into a liquid coagulant two solutions containing different concentrations of the same acrylonitrile polymer, the difference in concentrations being at least 4% of the smaller concentration and the two solutions being allowed to come into contact with each other before the polymer therein is wholly coagulated, stretching the resulting filaments to at least four times their unstretched length arid drying the filaments under conditions allowing them to shrink. Both acrylonitrile homopolymers and copolymers containing at least 80% by weight of acrylonitrile units, preferably 90-95% of such units, with e.g. styrene, methyl acrylate, itaconic acid, methallyl sulphonic acid and its salts, vinyl acetate and vinyl pyridine may be used. The two solutions may be spun into the coagulant through closely adjacent jet holes, or, preferably, simultaneously through the same jet hole, by using a divided jet hole or bringing the solutions into contact with each other only immediately behind the jet hole. Both solutions may be in the same solvent, for example an aqueous inorganic thiocyanate solution, sodium thiocyanate being specified. Desirably, the difference in concentrations is at least 10% of the smaller concentration and optionally 25%. Stretching of the filaments may be to 4-18 times, preferably to 8-10 times, their unstretched length, and drying may be effected at 60-80 C. Examples describe the spinning of solutions containing from 6À4-12À4% of polymer in a spinning solvent comprising 51% aqueous sodium thiocyanate into a coagulant comprising 11 % aqueous sodium thiocyanate, the filaments being stretched eight-fold. Filaments have crimp ratios of 1À14-1À49 and 11-35 crimps per inch were obtained.
Patent GB-141017-A (GB)
Title: Improvements relating to rotor and stator elements for turbines and in the method ofmanufacture thereof
IPC: F01D5/34
Filed: 1919-12-17
Abstract: 141,017. Escamez, J. M. April 2, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Rotors; casings. - Turbine disks and diaphragms are built up of many thin plates stamped with openings and assembled so that the openings form passages of the required shape. Fig. 6 shows diagrammatically a diaphragm 8 and a rotor disk 1.
Patent GB-960237-A (GB)
Title: Improvements relating to mass spectrometer ion sources
Inventor: CRAIG ROBERT DEREK
IPC: H01J49/14
Filed: 1961-09-04
Abstract: 960,237. Ion sources. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 24, 1962 [Sept. 4, 1961], No. 31743/61. Heading H1D. A mass spectrometer ion source has in its chamber wall and communicating with a sole channel leading to the main body of the spectrometer a variable width exit slit-two movable plates 53, 54, Fig. 4, chamfered at 62, 63 to form a knife edge slit can be moved to the right within tapered guide plates 55, 56 by a plunger 59 which carries a peg 68 extending through a hole formed by triangular recesses in the plates 53, 54; the plates 53, 54 are returned to the left by springs 64, 65. The plates 53, 54 move apart as they are moved to the right. Plate 51 is a carrier plate and plates 57, 58 resilient retaining plates. In a variation a peg on each movable plate co-operates with a 90 degree wedge on the plunger. In Fig. 2 plates 36, 37 are moved apart against leaf springs 41, 42 by a tapered plunger 27. Fixed and movable parts in both embodiments are made of dissimilar metals and molybdenum sulphide may be used as a lubricant. In a further embodiment similar to that of Fig. 4 all relatively moving parts are spaced apart by sapphire balls or rollers.
Patent GB-259423-A (GB)
Title: Improvements in bolts or like door fastenings
IPC: E05C1/04
Filed: 1925-12-16
Abstract: 259,423. Robinson, F. Dec. 16, 1925. Sliding bolts for sheet metal doors such as are used with bathroom cabinets, are mounted in a slotted or cut-away part of an embossed or recessed part of the door. The door a is embossed or recessed as at b and slotted to receive the casing c of a bolt d in the way shown in Figs. 1, 5. and 7. The casing and bolt are made from sheet metal stampings bent to angle-shape and fitting one within the other as shown in Fig. 8. The bolt may be solid and of square cross-section or may be a flat stamping d<2> with handle e<1> bent from the stamping as shown in Fig. 9.
Patent GB-788201-A (GB)
Title: Improvements relating to closure plugs for containers
IPC: B65D39/08
Filed: 1955-11-07
Abstract: 788,201. Stoppers. AMERICAN FLANGE & MANUFACTURING CO., Inc. Nov. 7, 1955 [July 5, 1955], No. 31774/55. Class 125(3). In a screw-plug closure with a shoulder 4 and seat 5 for a gasket 6 the thread 7 and the end near the plug head is diminished uniformly around the circumference, to prevent interference with the seating of the gasket, as for example, by having its pitch halved.
Patent GB-369586-A (GB)
Title: Treatment of textile materials made of or containing organic esters of cellulose
IPC: D06M11/38
Filed: 1930-10-22
Abstract: <PICT:0369586/IV/1> Textile materials made of or containing acetate or other organic esters of cellulose are partially saponified in a uniform manner, so as to raise their safe ironing temperature by treatment successively with alkali solutions of diminishing alkalinity, the first solution having an alkalinity not less than that of a 1 per cent caustic soda solution.  Instead of caustic alkalies, alkali carbonates, silicates, or sulphides may be used. Good results are given by the use of a solution of alkalinity corresponding to 4 to 7 per cent of caustic soda, preferably at room temperature, followed by a solution of alkalinity corresponding to 2 to 4 per cent of caustic soda, preferably at 70-85 DEG  C., and then washing with water at 70-85 DEG  C.  The fabrics may be dyed before treatment or dyed or printed afterwards.  They may contain also cotton or regenerated cellulose.  The fabric may pass through tanks containing the alkaline solutions and then through washing tanks between which it may be sprayed.  In another apparatus, the fabric passes under a roller 22 in strong alkali solution, between padding rollers 23 and around a compensator 26, and then through tanks 28, 30, 33 containing weak alkali solution and running water; sprays are shown at 31, 34.
Patent GB-1529453-A (GB)
Title: Record players
IPC: G11B19/26
Filed: 1976-10-26
Abstract: 1529453 Record changer BSR Ltd 26 Oct 1976 [30 July 1975] 31848/75 Heading G5R In a record changer gramophone the normal drive to the usual change-controlling cam gear 15 is interrupted for a predetermined period during the record dropping part of the change sequence to allow sufficient time for the lowermost record, which tends to adhere to the remainder of the stack on the record changer centre spindle, to drop on to the turntable. The normal gear drive is interrupted by the provision of a second toothless gap 19, in addition to the usual gap 20, in which drive pinion 12 can rotate without moving the gear and is restarted when tooth 13 forming part of the usual tap-tap mechanism co-operating with teeth 22, 23 moves the gear into re-engagement with the pinion.  In a second arrangement the recoupling arrangement uses a lost-motion mechanism.
Patent GB-1206117-A (GB)
Title: Method of heat treating alloy steel for welding
Inventor: SUZUKI KAZUHISA
IPC: C21D1/20
Filed: 1967-07-11
Abstract: 1,206,117. Heat treating alloy steel. MITSUBISHI JUKOGYO K.K. July 11, 1967, No.31857/67. Heading C7A. The steel is heated above its As transformation temperature, cooled from A3 to 500‹ C, in 5 to 55 seconds and from 500‹ C. to 200‹ C. in 20 to 3, 500 seconds, and finally to room temperature. It may then be tempered at a temperature between 150‹ C. and the A1 transformation temperature. The treatment reduces loss of toughness on subsequent welding. Preferably the cooling rates employed are such that the cooling curve of the treated steel substantially corresponds to that of the weld. As exemplified the process is applied to steels containing in percentage by weight:
Patent GB-1346233-A (GB)
Title: Single volume control for multi-channel audio systems
IPC: H03F3/68
Filed: 1971-07-07
Abstract: 1346233 Stereophonic amplifiers MOTOROLA Inc 7 July 1971 [20 July 1970 (2)] 31911/71 Heading H4R Sterophonic amplifier has a transistorized volume control circuit in each channel the gain of each of which is controlled by a common D.C. voltage derived from a variable resistance. As described the gain control is effected by a differential amplifier circuit in which either the total current is varied or the division of current between the two halves of the differential amplifier. A tone control circuit can be provided, also including an electrically variable impedance controlled by a common D.C. signal for each channel. Fig. 2 shows one embodiment in which the two channel signals are applied to the inputs of respective differential amplifiers 40, 52 which have their gains controlled by varying the current feed through the transistors 43 and 55, which are controlled by the potential derived from potentiometer 32. A tone control is provided by placing a capacitor 70 or 80 in series with the collector emitter impedance of a respective transistor 71, 81, across the signal path in each channel and varying the collector emitter impedances by the voltage derived from the potentiometer 36. The circuit provides treble cut which is changed to bass boost by interconnecting the output from potentiometer 36 with the volume control output from potentiometer 32 so that as treble cut is introduced the volume is increased. Balance of the volume levels in the two channels is provided by differential variation of the output loads of the two differential amplifiers at potentiometer 69. In an alternative arrangement, Fig. 3 (not shown) volume control is effected by feeding the signal to the common emitter transistor (143, 158) of the differential amplifiers and then varying the division ratio of the current in the two halves of each differential amplifier by varying the base bias on one half of each differential amplifier.
Patent GB-757864-A (GB)
Title: Two-piece hinge fitting
IPC: E05D5/02
Filed: 1954-11-04
Abstract: 757,864. Hinges. PFAFFLI, W.' Nov. 4, 1954 [June 26, 1954], No. 31942/54. Additi. to 737,344. Drawings to Specification. Class 65(2). In a hinge comprising two pivoted-together parts, each of which is provided with a pin for securing said part, and at least one pin being formed with a screw-thread having a pitch not greater than 1.5 mm., the axes of said pins, when the hinge is in operative position, are in line or offset by a distance which does not substantially exceed the sum of the two pin diameters.
Patent GB-665265-A (GB)
Title: Process for bleaching textile materials with chlorite solutions
IPC: D06L4/70
Filed: 1947-12-03
Abstract: Textile materials are bleached by first immersing them in a solution or suspension of an activator which increases the rate of bleaching by a chlorite bath, and then transferring them to a neutral or alkaline chlorite bleaching bath, so that the impregnated material brings the necessary activating agent into the bleaching bath. Suitable activators are solutions, emulsions or suspensions of compounds of elements of Group V or VI of the Mendelieff classification as described in Specification 639,235, or hydrolysable organic solvents as described in Specification 651,405.  In examples: (1) and (2) unbleached flax yarn is immersed in a solution of sodium thiosulphate, drained and then immersed in a solution of sodium chlorite; (3) unbleached flax yarn is immersed in a solution of sulphur in tetrachlorethane, centrifuged and immersed in a solution of sodium chlorite; (4) and (5) unbleached cotton cloth is immersed in tetrachlorethane, centrifuged and immersed in a solution of sodium chlorite.
Patent GB-487673-A (GB)
Title: Improvements in and apparatus for the removal of hydrogen sulphide from hydrocarbon liquids
IPC: C10G29/06
Filed: 1936-11-23
Abstract: Hydrocarbons such as benzine or crude benzol, are freed from hydrogen sulphide by treating with an aqueous washing liquid containing an alkaline-reacting salt of an amino acid.  Cracked benzine is pumped into the bottom of a washing tower 3 to which a 20 to 50 per cent solution of the sodium salt of alanine is admitted at the top.  Both liquids are dispersed in fine drops by sieve plates 5 and 6.  The tower is made of aluminium, iron lined with acid-proof materials, or of acid-proof metal <PICT:0487673/III/1> alloys, and is subdivided into small chambers to provide intimate contact of the liquids.  The purified benzine passes to two settling vessels 8, 9, where the separated aqueous liquid is drawn off into the aqueous washing liquid circuit.  The benzine layers are drawn off through a pipe 11.  The combined used washing liquids pass to settling vessels 13, 14 where any separated benzine is removed through a pipe 15, and the washing liquid is pumped through a heater exchanger 17 at 90 DEG  C. where any residues of benzine are removed into a vessel 18, and the washing liquid is then regenerated and freed from sulphuretted hydrogen by heating in a steam boiler 19.  Steam, inert gases or vapours of hydrocarbons or chlorinated hydrocarbons may be admitted.  The regenerated liquid passes through a pipe 20, heat exchanger 17, and cooler 25 to the tower 3.  Vapours from the boiler 19 are condensed and separated in a separator 23.  The settling vessels may be provided with electrically heated wire nets, heating coils, or a layer of filter material to separate any emulsion.  The salts of amino acids used are made from alkalies, alkaline earths or strong organic bases with, for example, glycocoll, methyl alanine, N-monomethyl taurine, hydroxyethyliminodipropionic acid, methylene diaminodiacetic acid, beta-methylenediaminolactic acid, or ethylene diamino-acenaphthene carboxylic acid.  With hydrocarbons containing carbon disulphide and similar sulphur compounds in addition to sulphuretted hydrogen, it is preferred to use compounds in which the amino-hydrogen atoms are all substituted with organic radicals.  The process may be effected under pressure, and at ordinary or elevated temperature. Liquefied hydrocarbons such as propane and butane may be treated. In the regeneration of washing liquids anti-foaming agents may be added, and the final traces of sulphuretted hydrogen may be removed by washing with another liquid.