baber/WOPTO huggingface dataset:
Patent GB-970705-A (GB)
Title: Improvements in or relating to methods of forming conductors on insulating supports
Inventor: NEWTON GEORGE CHARLES
IPC: H05K3/40
Filed: 1960-01-02
Abstract: 970,705. Terminal boards. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 15, 1960 [Jan. 2, 1960], No. 154/60. Heading H2E. A process for making a conductor on an insulating support for use, for example, with a magnetic storage device, with part of the conductor extending therebeyond, for use as a terminal, comprises, sticking a copper sheet 7 (Fig. 3), for examples 7 inches square, on to a 6 inches square, “-inch " Paxolin " (Registered Trade Mark) base 6, coating the copper sheet with a photo-resist material, clamping the base and adherent sheet in a three (8, 9, 10) pin jig (Fig. 2), supporting the ¢-inch overhanging copper sheet on foam rubber strips 13. The photo-resist coating is exposed by U.V. radiation through a negative pattern 14 of the conductor arrangement to be produced, supported and guided above the copper sheet 7 by carrier 15 and the Paxolin base and copper sheet removed from the jig for development. The underside of the overhanging portion of the copper sheet is coated with cellulose lacquer and the parts not covered by the photo-resist pattern of the sheet, etched away with ferric chloride, leaving the conductor with its overhanging portion. Additional layers of conductors, e.g. 3 and 4 can be added by similar means using intermediate layers 17, 18 of kraft paper. The overhanging conductor portions can be connected to a terminal strip (Fig. 5, not shown). Alternatively, a thin conductive coating can first be applied to the base, then plating resist material applied to define areas not corresponding to the conductors and the uncovered areas plated with further conductive material, finally removing the plating resist material and the thin conductive coating thereunder. Specification 940,834 is referred to.
Patent GB-803105-A (GB)
Title: Textile yarns and methods of thermally processing them
IPC: D02G1/02
Filed: 1955-01-04
Abstract: 803,105. Treating and finishing yarns. SEEM, W. A., STODDARD, N. J., TECCE, F., and BERGER, H. P., '[trading as PERMATWIST CO]. Jan. 4, 1955 [Jan. 4, 1954], No. 257/55. Drawings to Specification. Classes 120(2) and 120(3) In order to impart to thermoplastic yarns an increased uniformity of appearance, denier size, dyeing properties, elongation, elasticity, strength or residual shrinkage, the travelling yarn is softened by heat while under constant and, preferably, regulatable tension and then cooled, the heating device being automatically controlled to maintain the yarn temperature within predetermined limits. These limits may be Œ 1 per cent. If it is desired to shrink or stretch the yarn, the tension applied will be less or greater respectively than the contractile force of the yarn at the treatment temperature. The yarns employed may be nylon or those sold under the Registered Trade Marks "Vinyon", "Orlon", "Velon", "Dacron" and "Saran". The apparatus used may be as described in Specification 803,106. Yarns for welts of ladies' stockings may be treated at an effective temperature of 350‹ F. to stabilize them and tensioned at 0.4 grammes per denier, or at a higher or lower tension according to whether shrinkage or stretch is desired. In another example, a yarn that had been re-drawn under tension at 400‹F. is twisted with an untreated yarn and heated to 400‹F., whereupon the untreated yarn shrinks and is wrapped by the other yarn to give a corkscrew effect. Crepe yarns may be produced by heating during uptwisting. The heat treatment may be carried out simultaneously with other processes, for example, yarns may pass through a dye solution on a cone winding machine and the dye be developed by the heat treatment. In one example of a plied yarn, two 70 denier ends are separately S twisted to 24 turns per inch at 350‹F. and 70 grammes tension, plied with 20 turns of Z twist at 380‹F. and 100 grammes then further Z twisted 20 turns at 400‹F. and 160 grammes. When plying with cotton yarns, the thermal stretching of synthetic yarns is carried out to obtain similar elongation at break as in the cotton yarns. Bulked yarns may be made by twisting on an uptwister provided with heating and tensioning devices followed by untwisting, or a false-twisting tube be used. Specification 803,107 also is referred to.
Patent GB-155459-A (GB)
Title: A locking device for the steering wheels of motor vehicles
IPC: B60R25/022
Filed: 1920-01-05
Abstract: 155,459. Pyke, R. A. Jan. 5, 1920. Guarding against unauthorized use.- The object is to render the hand steering-wheel of the vehicle temporarily inoperative during the driver's absence, and it comprises means for engaging and disengaging the hand-wheel with the steering-rod under the control of combination mechanism. The device, as shown in Fig. 2, consists mainly of an apertured barrel 15, forming part of the steering- wheel arms 13, surrounding a core 28. The core is connected with the steering-rod 31, and contains apertures 29, corresponding to those in the barrel, into which spring-controlled pins 17 may be forced by the cam-shaped sides of a cam-cup 33, fitting concentrically about the barrel. When the pins are " in, " the steering-wheel is operative, and vice versa. The rotatable cam-cup is locked or unlocked either in the position in which the pins are in or in the position in which the pins are out by a combination device consisting of the cup, the rotatable cap 42, and the grooved spring- controlled bolt 37. Fig. 4 shows the cam-pins 17 engaged in the core holes. The cam-cup and the rotatable cap each have rings engaging with notches in the spring-controlled bolt, the rings being notched so that only in one position of the cap, and the cup, can the bolt be withdrawn to permit the cam cup to be rotated for operating the pins.
Patent GB-818387-A (GB)
Title: Improvements in or relating to palladium reforming catalysts
IPC: B01J37/02
Filed: 1956-01-04
Abstract: A catalyst for use in reforming hydrocarbons consists of palladium deposited on alumina, then activated by heating to at least 1200 DEG F. in an oxygen-containing atmosphere for 15 hours or longer and at atmospheric or higher pressures up to 500 p.s.i.g. The alumina used is in gamma form as described in the parent Specification, may also contain silica and acidic activating components, e.g. halogens. After the heat treatment in oxygen, the catalyst may be reduced with hydrogen.  For example, alumina is precipitated from a solution of aluminium chloride by adding ammonia; the alumina is washed and filtered in several stages until substantially free from chloride, and then allowed to age at room temperature.  The resulting aluminium trihydrate is then slurried with de-ionized water, and a dilute solution of palladium chloride added.  Water containing H2S is then slowly stirred in, and the slurry dried in air at 120 DEG  C.  The dry product is ground, mixed with a fatty oil and formed into tablets and heated at 900 DEG  F. in a mixture of nitrogen/air.  The tablets (containing 0.95 per cent palladium) are then heated at 1300 DEG  F. for 66 hours in a slow current of oxygen.  The catalyst may also be formed into particles of 100/400 mesh, e.g. by spray drying, for use in a fluidized bed.
Patent GB-579854-A (GB)
Title: Improved method of and means for producing paper tubes
IPC: B31C1/00
Filed: 1944-01-08
Abstract: 579,854. Coating fabrics. STEEL & CO., Ltd., J. and SMITH, T. P. Jan. 8, 1944, No. 391. [Class 140] [Also in Group XXVIII] A machine for making paper tubes by winding an adhesive-coated strip around a mandrel includes a coating device comprising an electrically heated and thermostatically controlled bath 12, an electrically-heated drum 21 mounted in the bath, a scraper roll 31, spreader roll 38 and a coating roll 37 which transfers the adhesive to the paper strip passing over the adjacent roll 42. The bath has a cylindrical shell containing heat insulating material and electrically heating elements longitudinally arranged in an arcuate row. The nip rolls 42 are heated to pre-heat the paper strip. The scrapper roll is adjustably pivotally mounted at 33 to control the thickness of adhesive on the drum 21.
Patent GB-213680-A (GB)
Title: Improvements in and relating to rotary speed indicators
IPC: G01P3/18
Filed: 1923-01-05
Abstract: 213,680. Bulle, M. P. Favre-. Jan. 5, 1923. Centrifugal speed indicators.-Weights g are carried by stems h pivoted to a plate d on a shaft c connected by the usual flexible shaft to the part of which the rotational speed is to be measured. Links l are secured to the weights g and to a member m which is connected to the plate d by adjustable spring q and on which a steel ball e<1> rests. The shaft c extends upwards in the form of a sleeve e which is provided at its upper extremity with a worm f driving a distance register. The speed indicating pointer, normally tending to return to zero under ihe action of a spring x is fitted with a shaft v extending into a bearing in a stem t projecting downwards from the top plate of the speedometer case. A projection c<1> at the lower end of the shaft, v extends into a slot b<1> formed in a member resting on a plate d' carried by the ball e'. This member slides on the stem t and carries a finger a<1> engaging a spiral slot formed in the stem. To mount the speedometer on its board p' the case is pushed through an opening until stopped bv the projecting rim p<2>. A circular band is then deformed until studs projecting internally from it can be sprung into openings o<2> in the sides of the case. A stop n<1> at one side of the band then bears against the board p<1> and the other side of the band is then adjusted by a knurled screw n<2> until the speedometer is firmly clamped.
Patent GB-523432-A (GB)
Title: Improvements relating to burners and fittings for radiant tube furnaces and the like
IPC: F16L58/08
Filed: 1939-01-06
Abstract: 523,432. Gas-fired heaters. SANDERSON BROS. & NEWBOULD. Ltd., and HOLMES, J. G. Jan. 6, 1939, No. 512. [Class 126] [Also in Groups XII and XXII] In gas fired radiant tube furnaces or domestic heaters the radiant tubes have an outer casing composed of a material which is resistant to scaling and maintains its mechanical strength at high temperatures, and an inner casing composed of material that is resistant to scaling at high temperatures and to attack by the products of combustion including sulphur and its compounds. The tubes b may be arranged vertically, as shown in Fig. 3, within the furnace a and supplied with gas from burners c the combustion products being exhausted into flues d<SP>2</SP> or the tubes may be arranged horizontally in the furnace. Fig. 5 shows a section of a tube having an outer casing e and inner casing f. The tubes may be formed by taking a plate of nickel chromium steel for the outer casing e containing 20 to 80 per cent. of nickel and 5 to 30 per cent. of chromium, and welding it to a plate for the inner casing f containing about 20 per cent. of chromium and little or no nickel since the nickel is attacked by the sulphur compounds in the combustion products. The plates are welded together by the process described in Specification 446,439, [Group XXII], or by centrifugally casting the outer casing from the nickel chromium steel and by centrifugally casting the inner casing from chromium steel on the inside of the outer casing. The composite tubes may also. be produced by forging or pressing the two layers together or by an extrusion process in which the inner and outer casings are extruded separately and united to form the composite tube by the method described in Specification 446,439 or the two parts may be extruded simultaneously so that they are bonded together by the extrusion process.
Patent GB-410905-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B23Q15/00
Filed: 1933-01-06
Abstract: 410,905. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Crown House, Aldwych, London.-(General Electric Co. ; Schenectady, New York, U.S.A. Jan. 6, 1933, No. 548. [Class 38 (iii).] A motor 10 driving the feeding means 11, 12 in a machine for pulping wood is controlled in accordance with the pressure at the bearings of the grindstone 17, and means are providec for reversing the motor for a predetermined time in the event of a jam in the feeding means. The motor is sup plied with current from a generator 18 on the Ward Leonard system. The oil pressure at the bearings o: the grindstone is transmittec through a pipe 25 to a Bour don tube 26 connected to a pivoted contact lever 27 If the pressure on the grind stone falls below a prede termined value, a contact 30 on the lever 27 engages a contact 31 and energizes a winding 37 on a relay 39 which is normally maintained open, against the action of a spring 40, by a winding 38 Energization of the winding 37 neutralizes the action of the winding 38 and permits the relay to close, thereby short-circuiting a resistance 20 in the field circuit of the generator 18. The speed of the motor 10 is thereby increased to increase the pressure on the grindstone. To prevent hunting, the contact 31 is mounted on a lever 32 under the control of a voltage winding 34 across the generator ; the net result being a vibratory action of the contact 31 which maintains the voltage of the generator at the desired value. If the pressure on the grindstone falls below a predetermined amount, contacts 29, 41 are closed by the movement of the lever 27. If the reduced pressure on the grindstone is due to a jam in the feeding mechanism, the load current on the motor will remain high, coils 44, 45 on a differential relay 42 in series with the contacts 29, 41 will neutralize each other and permit the relay to close, to complete an energizing circuit for the relay 46 which, in turn, energizes the coil 85 of the reversing switch 21 and reverses the direction of rotation of the motor. When the reversing switch operates, a switch 90 establishes an energizing circuit for a timing device 47 including a motor 92, winding 94 and switches 88, 96. The energization of the coil 94 tends to open the switch 88 and close the switch 96, but this is prevented by a latch 97 until the latch is released by a pin 101 on a gear wheel 100 rotated by the motor 92. On release of the latch, the coil of the reversing switch is de-energized and the normal rotation of the motor 10 is restored.
Patent GB-738027-A (GB)
Title: Improvements in or relating to roller refiners
Inventor: TUNLEY ALLAN ASHMEAD
IPC: B02C4/44
Filed: 1953-01-08
Abstract: 738,027. Roller mills. BAKER PERKINS, Ltd. April 7, 1954 [Jan. 8, 1953], No. 599/53. Class 59. [Also in Group XIII] In a refiner roll of the type comprising a roll shell in the form of a smooth hollow cylinder supported only at each end on a shaft or stub shafts, the outer surface of the roll shell is a true cylinder and the wall thickness of the shell increases towards the centre of the roll, being greatest at or in the region of the transverse centre line of the roll. The increase in thickness may be continuous by forming the inner surface of the shell as a convex curve, Fig. 1 (not shown), or the thickness may increase in steps towards the centre of the shell, Fig. 3 (not shown). Alternatively and as shown, the inner surface 5a of the shell 1a, which is supported on stub shafts 2, tapers in a straight line 7 from each end-plate 3 to the centre of the shell. In a modification, Fig. 4, the shell la is supported at its ends on stub shafts 10, 11 through the intermediary of resilient annular steel members 16 to which the shell is keyed at one or both ends, i.e. at 28, 29 to transmit drive thereto. Rigid tie means in the form of tie-rods 13 are permanently secured, as by welding 21, at one end to one of the annular members 16 and detachably secured at the other end to the other annular member. Cooling water is circulated to the interior of the shell through an axial bore 15 in the stub shaft 10. In a further modification, Fig. 5 (not shown), a ring of resilient material, e.g. of rubber, is provided between the roll shell and the outer periphery of each annular member and is vulcanised to the shell or annular member or to both. The roll shell is keyed to one or both annular members by key(s) carried on the plate(s) closing the end(s) of the roll. The tie-rods may be replaced by a cylindrical tubular member concentric to the roll axis and having a mean diameter substantially equal to the mean diameter of the annular members. In another modification, Fig. 6 (not shown), the roll shell is supported on a continuous shaft through the intermediary of the annular members but the tie means are omitted. In a further modification, an annular resilient packing may be interposed between each end of the roll shell and the periphery of the adjacent end-plate, e.g. it may be located between cooperating bevelled faces on the roll shell and the end plate or in opposed annular rebates.
Patent GB-1519731-A (GB)
Title: Apparatus for controlling a gas fuel outflow from a vehicle gas fuel tank
IPC: B60K28/14
Filed: 1976-12-31
Abstract: 1519731 Pendulum switches ROLLS-ROYCE MOTORS Ltd 31 Dec 1976 [8 Jan 1976] 00604/76 Heading H1N [Also in Division G4] A solenoid valve 33, Fig. 3, for controlling the outflow of gas from a vehicle gas tank 29 is automatically closed when a tilt switch device, Fig. 1, having a pendulum 10 tilts beyond a certain angle, e.g. 28 degrees. The pendulum 10 is mounted on one end of a shaft 8 whose other end carries a switch actuating arm 16 for operating, depending on the direction of tilt of the device, one of two microswitches 14 supported on adjustable plates 11. The lower end 10 of the pendulum is immersed in oil to provide a damping effect. Upon actuation of either of the microswitches 14, contacts C2, C3 of a relay connected in circuit with the solenoid are opened to cause the valve 33 to close. The system may be reset by opening a switch 42 The tank 29 may supply a gas engine, cooker or heater of a vehicle.
Patent GB-1088251-A (GB)
Title: Improvements in or relating to transistor amplifiers
Inventor: GERARD ROGER EDWIN JOHN
IPC: H03F1/34
Filed: 1965-01-06
Abstract: 1,088,251. Transistor amplifying circuits. MARCONI CO. Ltd. Oct. 28, 1965 [Jan. 6, 1965], No. 654/65. Heading H3T. A transistor amplifier has two negative feedback loops of which one is a current feedback loop for stabilizing gain and the other is a voltage feedback loop including an impedance 6 dimensioned to match the output impedance of the circuit to the impedance of the load 5. The current and voltage feedback loops comprise transformer 3, and resistor 6 and transformer 8, respectively. Transformer 8 may be omitted (Fig. 1, not shown), resistor 6 being directly connected to the base of transistor 2, although its presence permits a larger resistor 6 and hence reduces the loss therein. Transformers 3 and 8 may be replaced by a single three-winding transformer (Fig. 3, not shown), the windings being both of the primaries and one of the secondaries of transformers 3, 8. Capacitor 10 compensates for phase shift in transistor 2. A plurality of output transistors 2 may be connected in parallel.
Patent GB-122234-A (GB)
Title: Improvements in Carding Engines.
IPC: D01G15/20
Filed: 1918-01-11
Abstract: 122,234. Potters Asbestos Co., and Tillotson, E. Jan. 11, 1918. Feeding carding-engines.-Fibres, such as cotton and asbestos, which are to be mixed in the carding-engine, are fed simultaneously to two or more points on the licker-in B and are passed thereby to the same point on the main cylinder A. One set of fibres may be fed loose on a lattice F through feed-rollers D<1> and another set from a lap E by a feed-roller D and feed plate.
Patent GB-1012251-A (GB)
Title: Trace emulsifier latexes
IPC: C08F220/12
Filed: 1964-01-07
Abstract: A latex composition comprises a stable aqueous dispersion of water-insoluble copolymerized monomers comprising from 1 to 10% of the total monomer weight of an a ,b -ethylenically unsaturated carboxylic acid and at least one ethylenically unsaturated ester of the cyclohexyl esters and the C1 to C18 alkyl esters of acrylic acid or methacrylic acid, any balance of monomer being a monovinylidene monomer having the formula <FORM:1012251/C3/1> wherein R is hydrogen or methyl and Q is the radical -CN or an aromatic hydrocarbon having from 6 to 12 carbon atoms, in an aqueous system containing from 0.004 to 0.1 weight per cent, based on monomer weight, of predominantly anionic water-soluble emulsifier.  Many monomers are listed, those exemplified areacids-acrylic acid and methacrylic acid; esters-ethylacrylate, butylacrylate, and methyl methacrylate; other monomers-styrene and acrylonitrile. The anionic emulsifier may be an alkyl aryl sulphonate, an alkali metal alkyl sulphate, a sulphonated alkyl ester, or a fatty acid soap.  Those exemplified are dioctyl sodium sulphosuccinate and disodium dodecyldiphenyl ether disulphonate.  The usual peroxide or peracid free radical catalysts may be used to copolymerize the monomers, optionally activated with reducing agents to form redox systems.  The catalyst exemplified is sodium persulphate.  After polymerization the latex may be rendered mildly alkaline, preferably by the addition of ammonia.  The usual additives may be included in the composition.
Patent GB-1207200-A (GB)
Title: Improvements in or relating to mining machines
Inventor: WHITE WILLIAM
IPC: E21C35/08
Filed: 1968-01-05
Abstract: 1,207,200. Mineral-mining machines. MAVOR & COULSON Ltd. 12 March, 1969 [5 Jan., 1968], No. 742/68. Heading E1F. A mineral-mining machine has a sensor system for permitting of a rotary cutter to automatically follow the roof or floor of a seam. An advancing rotary feeler - a disc 34 associated concentrically with and of slightly greater diameter than the cutter 2-encountering a change of rock conditions causes variation in the pressure in the hydraulic supply line to hydraulic means 4, 5 biassing the cutter and feeler into rock surrounding the mineral seam being mined. This pressure variation in the supply line effects, according to the setting of a cross over valve 14 in the supply and return lines to the biassing means, one of two three valves 22, 28 connected in parallel between the lines to appropriately control the supply of pressurised liquid to the biassing means to raise, lower or lock the means in accordance with the operating conditions encountered by the sensor so as to ensure the cutter correctly follows the roof or floor of the seam.