baber/WOPTO huggingface dataset:
Patent GB-764764-A (GB)
Title: Improvements relating to electric arc stud welding and pin brazing
IPC: B23K9/20
Filed: 1955-03-28
Abstract: 764,764. Welding by pressure. CROMPTON PARKINSON, Ltd. March 28, 1955 [April 8, 1954], No. 9004/55. Class 83 (4). In electric stud welding or soldering apparatus including a tool having a solenoid coil for retracting the stud against a spring, the'coil is connected in series with the welding circuit so as to be energized to retract the stud as soon as the circuit is completed and a contactor is provided for short-circuiting the coil after retraction of the stud to apply full welding or soldering current. A gun has a two-part solenoid coil 10a, 10b about a stationary armature 11 and a movable armature 12 mechanically connected to the stud chuck 21, the armatures being pressed apart by a spring 13. The gun is connected in a circuit as in Fig. 2, the D.C. source P being a motor generator set or rectifier. With the stud S in contact with the work W the button PB is pressed to energize a timing relay TR and a control relay CR having contacts CR1, CR2 and CR3. The contacts CR1 energize the coil 10a through a lead 16, the stud S and the work W to lift the stud and strike a low current arc. When the arc voltage is established the coil 10b in parallel with the arc is energized to hold the stud retracted. Contacts CR2 short-circuit the button and CR3 energize contactor C, whose contacts C1 close to shortcircuit the coil 10a, full welding current then flowing. The arc continues until contacts TR1 of relay TR open to de-energize relay CR and in turn contactor C to interrupt the welding current and to de-energize coil 10b, allowing the stud to be thrust down by the spring 13. In a modification the coil 10b is connected through further contacts CR4 (not shown) of the relay CR so that the stud may be thrust downwardly before the welding current is interrupted. In a further modification the coil 10b is opencircuited so that the stud is thrust downwardly immediately the coil 10a is short-circuited. In another modification a further time delay relay controls the main contactor so that the welding current may be allowed to flow until after the stud has reached the workpiece. Specification 580,702 is referred to.
Patent GB-986242-A (GB)
Title: Low temperature separation of methane from gas mixtures
Inventor: SCHUFTAN PAUL MAURICE
IPC: F25J3/02
Filed: 1963-03-06
Abstract: 986,242. Cold separation of gas mixtures. BRITISH OXYGEN CO. Ltd. March 6, 1964 [March 6, 1963], No. 9011/63. Heading F4P. Methane is separated from admixture with lower boiling gases, e.g. hydrogen, nitrogen and carbon monoxide, and with higher boiling gases, e.g. ethylene, in insufficient concentration to form solid condensates by cooling compressed feed gas in exchangers 1-3 traversed by cold separated constituents insufficiently to form a primary condensate containing methane in excess of that to be recovered, expanding said condensate in a valve 6 into a rectification column 5b, withdrawing crude liquid methane from the base of the column, optionally expanding in a valve 10 and partially vaporizing in exchanger 3 thereby producing product gaseous methane which after removal of cold therefrom in exchanger 1 is discharged through a valved duct 13; the liquid residue being expanded at a valve 15 and added to gaseous overhead from column 5b prior to passage through exchanger 2. Expansion valve 6 is controlled by means responsive to feed gas flow through an orifice 20, valves 10, 15 are controlled by local indicators in the reboiler and in a liquid separator 12 respectively.
Patent GB-819126-A (GB)
Title: Method for the preparation of piperazines
IPC: C07D295/023
Filed: 1958-03-20
Abstract: Piperazine or an alkyl piperazine is prepared by dispersing an alkanolamine hydrohalide in an inert organic dispersant liquid, cyclizing the alkanolamine hydrohalide by heating it while it is maintained in liquid dispersion until substantial portions of the alkanolamine hydrohalide are converted to a piperazine hydrohalide and recovering piperazine therefrom.  Preferably the reaction mass is maintained at a pH of at least 3.5.  The preferred starting materials are those of formula HO-CHR-CHR-NH2.HX in which R is hydrogen or an alkyl radical containing 1-4 carbon atoms and X is chlorine or bromine. The piperazine product obtained is of formula <FORM:0819126/IV (b)/1> Mixed products are obtained by using a mixture of starting materials.  The inert organic dispersant liquid may be, for example, diphenyl ether, biphenylyl phenyl ether, naphthyl phenyl ether, biphenyl, alkyl benzenes and alkylates of diphenyl ether. The preferred temperature range for the reaction is 200-350 DEG  C. Basic materials, such as tributylamine, triethylamine, trisodium phosphate and various sodium acid phosphates may be added to control the pH of the mixture.  The process may be carried out batchwise or continuously and the product may be recovered after neutralization of the piperazine hydrohalide with caustic soda or other neutralizing substance.  In the example, ethanolamine is added to hydrochloric acid solution and phenyl xenyl ether is added to the mixture; the resulting mixture is heated for 1 1/2 hours, cooled, treated with caustic soda solution and distilled to give piperazine.  In a similar manner 1-amino-2-propanol hydrochloride is converted to 2,5-dimethyl-piperazine and 1-amino-2-butanol hydrochloride is converted to 2,5-diethyl-piperazine.  Specification 595,430, [Group IV], is referred to.
Patent GB-404171-A (GB)
Title: Improvements in the application of liquid treating agents to yarns and like materials
IPC: D06B3/04
Filed: 1933-03-27
Abstract: 404,171. Moistening yarns &c. during winding. BRITISH CELANESE, Ltd., 22, Hanover Square, London. March 27, 1933, No. 9201. Convention date, March 26, 1932. [Class 120 (ii).] In the application of treating liquids to yarns, threads, &c. the speed of which varies during the application, e.g. during winding, the amount of liquid applied per unit length is kept constant by moving the line of contact with a surface wetted by the liquid into a different plane to vary the length of contact. In the apparatus shown, the thread A is led over a revolving felt &c. cone 2 dipping into a trough 1 containing the liquid to be applied. The thread is supported by guides 5, 6 carried by a bridge-piece 4 having a horizontal arm 7 secured by a lock screw 8 to a member 9 adapted to slide on a guide at the side of the trough, the mounting being such that the thread can be set at the desired inclination to the axis of the cone. Reciprocation of the slide 9 is effected by a lever pivoted at 14 and connected by a link 18 to the slide. One arm of the lever carries a thread guide 13 which is pressed into contact with the winding spool by a weight 16 carried by the other arm 15 of the lever so that, as the size of the spool increases, the bridge-piece and the thread are moved toward the larger end of the cone 2. Motion is imparted to the lever by means not shown to produce the form of spool required. The invention may be applied to the application of oils, sizing or colouring liquids to yarns or threads of any origin, e.g. to the treatment with aqueous swelling-agents of threads formed of cellulose derivatives, such as cellulose acetate.
Patent GB-615704-A (GB)
Title: Improvements in or relating to the production of iron in blast furnaces
IPC: C21B5/00
Filed: 1940-05-24
Abstract: In the production of iron in the blast furnace in which the sulphur is removed from the charge which may be rich in sulphur by the introduction of steam, the steam is superheated to 400-800 DEG C. and supplied to a zone of the furnace, the temperature of which corresponds to that of the steam, the latter being partly reduced to hydrogen by reaction with the carbon monoxide flowing upward in the furnace, the resulting hydrogen and the undecomposed steam converting the sulphur into sulphur compounds which are carried away with the furnace gases.  The steam may be superheated in a separate chamber and mixed with flue gases to bring it to the required temperature. The process may be applied to acid or basic blast furnaces. Specifications 351,892, [Group XII], 454,562 and 607,944 are referred to.
Patent GB-385808-A (GB)
Title: A process of direct photographic production of copy in full tone from relief printing formes
IPC: G03F1/90
Filed: 1932-03-31
Abstract: 385,808. Photo-mechanical printing- surfaces. BELCOLOR GES., 31, Neuenburger Strasse, Berlin. March 31, 1932, No. 9260. Convention date, April 1, 1931. [Class 98 (ii).] A direct photographic full - tone copy is obtained from letterpress and/or block printing formes by covering by spraying the complete upper surface of the forme with a colour which is as actinically active or inert as possible, clearing the printing portion of the surface and coating the cleared surface by rolling thereon a colour having opposite actinic properties, and photographing. To obtain full contact, the developed negative may be treated by a known etching process. In an example, a bookprinting composition is sprayed with thin black pyroxylin, the printing parts are cleared and rolled with a good white paint. The prepared composition is either (1) photographed on to a film, through the support, the film being developed with pyrocatechin without sulphite and etched with warm water followed by further development or treatment with sodium sulphide; or (2) photographed on to bromide paper which is developed with a non-hardening developer, bleached with acidified peroxide of hydrogen solution, re-exposed and re-developed.
Patent GB-804794-A (GB)
Title: Improvements in or relating to the sealing of capacitors and other electrical components
Inventor: DALY RONALD DOUGLAS
IPC: H01G2/10
Filed: 1954-03-30
Abstract: 804,794. Capacitors; mounting terminals. HUNT (CAPACITORS) Ltd., A. H. March 30, 1955 [March 30, 1954], Nos 9282/54 and 15742/54. Classes 37 and 38 (1). A housing for a capacitor or other electrical component 11 comprises an aluminium can 12, Fig. 1, having a flared open end within which is inserted a rigid insulating plate 15 having a rubber sealing disc 18 bonded to its inner surface and around which is placed a steel mounting ring 19 having a flange 22 which is spun or bent inwardly into firm engagement with the flared end of the can 12, thus compressing the rubber disc 18 radially to provide a good seal. The mounting disc shown in plan view in Fig. 3 has upwardly bent lugs 21 whereby the component can be attached to a chassis. Terminal members 13 are led through the discs 15 and 18 to terminals 16 by rivets 17 which compress the rubber disc 18 to ensure that a seal is provided around each rivet. A rubber disc may alternatively be provided on each side of the insulating plate. In a second embodiment, Fig. 4, the can 24 is provided with a metal cap 27 through which passes a tubular porcelain insulator 32 soldered to the cap 27, the terminal member 31 being led through the insulator 32 to a terminal 35. The can is provided with a peripheral groove at its outer end; a rubber sealing ring 26 is arranged within this groove and the seal is completed by bending the flange of the cap 27 inwardly against the outer surface of the can to compress the sealing ring radially. Specification 635,537 is referred to.
Patent GB-879934-A (GB)
Title: Improvements in or relating to mixing circuits for high frequencies
IPC: H03D7/08
Filed: 1960-03-16
Abstract: 879,934. Frequency changing circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 16, 1960 [March 19, 1959], No. 9286/60. Class 40(6) In a self-oscillating frequency changer feeding into an 1.F. bandpass filter having a primary inductance 8 within the screening compartment containing the frequency-changer, coupled to the secondary 13 which is without the screening compartment by means of a series-connected coupling coil 10 and screened cable 12, the coil 10 is resonated by a capacitance, which may take the form of a feed-through condenser 11 to a frequency lower than the intermediate frequency. The arrangement is designed to prevent the escape of local oscillations from the screening compartment via the I.F. circuits and permits of I.F. regeneration being applied to the frequency changer by means of resistor 17 and condenser 15.
Patent GB-557738-A (GB)
Title: Potato picker
IPC: A01D33/10
Filed: 1942-07-04
Abstract: 557,738. Potato harvesters. BROCKETT, G. F. July 4, 1942, No. 9291. [Class 6 (iii)] [Also in Group XXX] A potato harvester for attachment to the rear of a digger comprises an endless opengrate conveyer having a low level stretch A for receiving potatoes from the delivery shoot 6a of the digger and an elevating stretch B discharging through a shoot D into a receptacle on a rear platform E. Potato-retaining walls 17 aextend longside the conveyer and shoot, the walls 17 at the stretch A being angularly adjustable and converging rearwards to form a wide mouth. Rubber-faced slots 7a are secured at intervals to conveyer rods 7. The shaft 9 of the driving sprockets 8 of the conveyer is driven from the wheels by a chain 10 passing over guide sprockets 11 and a loosely-mounted driving sprocket 10a acting through a clutch. The shoot D comprises a longitudinallybarred grid and a pivoted guide plate to enable bags &c. to be filled continuously. Side platforms 15 are provided for attendants to remove stones from the conveyer and a platform 16 for an attendant to operate the guide plate.
Patent GB-107629-A (GB)
Title: Improvements in and connected with Travellers for Ring Spinning and Doubling and the like.
Inventor: BRANDWOOD JOHN
IPC: D01H7/60
Filed: 1916-07-03
Abstract: 107,629. Brandwood, J., and Hargreaves, J. July 3, 1916. Spindle apparatus.-A traveller of the type comprising a central bar with forked ends to embrace the ring which can be used to spin either twist way or weft way without alteration of its position on the ring is provided with a closed or nearly closed yarn guide eye. Fig. 5 shows a wire traveller provided with a closed guide eye D, and Fig. 3 shows a flat metal traveller with a nearly closed eye D formed by bending the strip down below the central bar A. A strip may extend across from one fork to the other. The guide may be formed on an arm extending from one fork. The yarn may be led direct to the spindle through the guide, or may be passed also through one of the forks.
Patent GB-1345109-A (GB)
Title: Organosilanes
IPC: C07F7/18
Filed: 1972-02-29
Abstract: 1345109 Glass cloth laminates QUAKER OATS CO 29 Feb 1972 [3 March 1971] 9358/72  Heading B5N [Also in Division C3] Six-ply glass cloth laminates are bonded with a furan resin based on a reaction mixture of furfuryl alcohol, formaldehyde, methanol, water and oxalic acid, and using a para-toluene sulphonic acid curing catalyst and an N,N<SP>1</SP>- bis[(trisubstituted)silylalkylene] - 1,4 - xylenealpha,alpha<SP>1</SP>-diimine adhesion promoter.
Patent GB-183893-A (GB)
Title: An improved pneumatic pump
IPC: F04B1/02
Filed: 1921-03-29
Abstract: 183,893. Hanlon, W. P. June 21, 1921. Paper-weights; writing tablets.-A desk article adapted to serve as a memorandum appliance, a paper-weight, a pencil and pen rack, and an advertising medium comprises a base 1 formed from sheet metal and provided with apertures to receive hooks on a removable upper member 2 stamped from a single sheet of metal and bent to form a flat top 16, a flat end 17, and two sides 14, 15 carrying the hooks, the member 2 being provided with rollers carrying a belt 18 supported by the top 16 and end 17 and formed of celluloid or other material from which written information and memoranda can be erased. The base 1 may be provided with stamped-up ears 3 to form pen and pencil racks. The sides 14, 15 may be connected together by a tubular member 19 adapted to hold water or other liquid for use in erasing marks from the belt 18, swabs carried by handles 32, 33 being provided for this purpose. The belt is preferably carried by two rollers 22, 23 supported on removable pins 25, 26, 29, the pins 25, 26 serving as handles to rotate the roller 22 to move the belt. The pins 25, 26 and handles 32, 33 are shaped as cannons to increase the resemblance of the member 2 to a military tank.
Patent GB-526706-A (GB)
Title: Improvements in or relating to arrangements of carbon or like transfer sheets
IPC: B41L1/16
Filed: 1939-03-25
Abstract: 526,706. Carbon-sheet holders. WILKES, jun. J. March 25, 1939, No. 9376. [Class 16] In a carbon pack for use with record webs and consisting of a backing sheet 1 or a strip 2 attached thereto slotted from near one edge to near the opposite edge for the passage of the webs and with the carbon sheets 5 attached to the bars 6 between the slots 3, the edges 4 of the sheet or the strip beyond the slots are turned in and fixed to the rear face of the backing- sheet. The carbon sheets are substantially the same width as the webs. The strips 2 may be formed of paper reinforced by a fabric mesh backing. Specification 488,526 is referred to.
Patent GB-1182322-A (GB)
Title: Transducer Unit
IPC: H01H35/24
Filed: 1967-02-28
Abstract: 1,182,322. Magnetic switches. SAIA A.G. 28 Feb., 1967 [4 March, 1966], No. 9469/67. Heading H1N. [Also in Divisions F2 and G1] A pneumatic relay has a double acting piston with permanent magnet means thereon controlling switch contact means. As shown, a measuring nozzle 13 communicates with one end of the cylinder 9 whilst its other end communicates with a regulating outlet needle valve (Fig. 3, not shown). Both ends of the cylinder are provided with pressure air from an inlet 3 through flow resistors 8. The piston 19 has a permanent magnet 20 axially magnetized and co-operating end faces 22 of the piston-andcylinder end plugs 21 are roughened to avoid excessive adhesion. A sealed magnetic reed contact unit having contact reeds 28 is mounted adjacent the non-magnetic cylinder wall. The needle valve may be replaced by a rod 30 (Fig. 5) extending from the piston 19 and through a baffle 31. The rod 30 has reduced cross-section for part 32 of its length so as to allow for movement of the piston at different pressure differences and stopping of the piston at an intermediate position. A tapered pin may be provided in place of the rod 30. Adjustable valves may be provided at each end of the cylinder (Figs. 7 and 8, not shown).
Patent GB-1356642-A (GB)
Title: Modified polymeric substances as washing assistants
IPC: C08J9/36
Filed: 1971-04-15
Abstract: 1356642 Polyurethane foam PROCTER &  GAMBLE Ltd 12 April 1972 [15 April 1971] 9517/71 Heading C3R An adsorbent mass comprises polyurethane foam to the surface of which has been chemically bonded by means of a polyfunctional coupling agent an organic nitrogenous substance selected from polyethyleneimines; copolymers thereof with alkylene oxides; acylated polyethylene imines; pyridine; quinoline and tertiary amines having 3 to 6 carbon atoms. The polyurethane foam may be treated with the coupling agent in a solvent which is not a solvent for the foam and after removal of any surplus reagent or solvent with the nitrogenous substance dissolved in a solvent. The coupling agent is a compound with at least two functional groups and can be bonded to the polyurethane via the amino and/or hydroxyl groups thereof whilst still having a functional group reactive with the nitrogenous substance, and is preferably a di- or higher chloride, bromide or iodide of a polybasic acid, e.g. terephthaloyl chloride, cyanuric chloride, succinoyl chloride and sebacoyl chloride. The preferred nitrogenous substance is polyethylene imine of M.W. from 100 to 5000. The foam is suitable for use in a process of washing articles in an aqueous wash liquor, the wash liquor being caused to flow over and/or through the foam. Dirt and fugitive dyes released from the articles being washed are scavenged by the foam.
Patent GB-1179021-A (GB)
Title: Electrolytic Surface Treatment of Metals
IPC: C25D11/38
Filed: 1967-02-28
Abstract: 1,179,021. Electrolytic production of chromate coatings. KOBE STEEL Ltd. Feb.28, 1967 [March 11, 1966], No.9556/67. Heading C7B. A metal surface is treated electrolytically as cathode to form a corrosion resistant film thereon using as electrolyte an aqueous solution prepared by adding a water soluble organic compound containing a thioradical, e.g. thioformamide thiourea, thiosemicarbazide, thioacetate, thioglycol or thiosalicylate, to an aqueous solution of a chromium compound in which the chromium is predominently present in the solution in the form of hexavalent chromium ions. The chromium may be present as chromium trioxide or as sodium bichromate. The surface to be coated may be of iron or steel and the anode used may be of graphite or lead.
Patent GB-375810-A (GB)
Title: A valve gear and valves for internal combustion engines
IPC: F01L5/04
Filed: 1931-03-31
Abstract: 375,810. Valves ; valve gear. COX, R. H., Highways, Knebworth, Hertfordshire. March 31, 1931, No. 9668. [Class 7 (vi).] Inlet at C<1> and exhaust at B<1> are controlled by piston valves C<2>, B<2> actuated by cranks or eccentrics on a pair of overhead half-speed shafts C<5>, B<5> rotated in the same direction and arranged so that the force of the explosion on one valve is counteracted by that on the other. The cylinders B, C in which the piston valves operate are inclined, preferably at 45‹, to each other. The valves are fitted with piston rings B7, C<7> at their lower ends, and also at their upper ends in the case of multicylinder engines.
Patent GB-141352-A (GB)
Title: Improvements in or relating to electric furnaces
IPC: F27B3/12
Filed: 1920-04-06
Abstract: 141,352. Assie, E. Aug. 9, 1917, [Convention date]. Electrode furnaces.-A furnace suitable for making a refractory or abrasive substance such as artificial corundum comprises a hearth and outer wall i both of beaten graphite, an inner wall j conductive only when hot, a metal casing B, and a movable electrode. The graphite may be mixed with tar while hot. The hearth is enclosed in a shallow casing to which two terminal strips dare attached. A sheet-metal shaft B, slightly tapered, is detachably secured to the casing A. Both the the shaft and the casing are strengthened by angle-irons, and are interrupted by vertical non- magnetic distance-pieces, for instance, pairs of bronze angle-bars. The shaft lining i may be a mixture of 1 part calcined magnesia, 1 part dehydrated bauxite, 2 parts waste material from previous charges, for instance corundum dust, and enough carbon to reduce any heavy metals with which the bauxite is contaminated. Tar, starch, sodium silicate, or other binder is added to the latter mixture. A part of the inner lining may be fused with the charge, which is removed after dismantling the shaft and its linings.
Patent GB-263477-A (GB)
Title: Loud speakers
IPC: H04R7/12
Filed: 1926-04-13
Abstract: 263,477. Hopkins Corporation, Assignees of Hopkins, M. C.). Dec. 22, 1925, [Convention date]. Loud-speakers; diaphragms. - A Loud-speaker of the kind having a large conical diaphragm is provided with a sounding board to which the cone is flexibly attached, the sounding board or portions thereof extending across the base of the cone. As shown, the circular sounding board 2, larger than the base of the diaphragm 7, is made of three-ply wood and is carried by a base piece 1. For mounting the diaphragm, an annular groove 4 is formed on the board and the forwardly flared rim 5 of the diaphragm is cemented to the outer bevelled edge of the groove. The annular portion of the board surrounding the diaphragm forms the sounding board proper. The inner portion of the board within the circumference of the cone is pierced with three holes a - - c and carries the electromagnetic device. Specifications 263,478, 263,481 and 263,484 are referred to.