baber/WOPTO huggingface dataset:
Patent GB-947215-A (GB)
Title: Welding guns
Inventor: HAWTHORNE LOWELL HUNTER
IPC: B23K9/028
Filed: 1960-04-28
Abstract: 947,215. Welding by fusion. REVERE COPPER & BRASS Inc. April 28, 1960, No. 15032/60. Heading B3R. [Also in Division H5] In a portable gas shielded arc welding gun similar to that described in Specification 824,586 for making circular welds, e.g. between tubes 133 and a tube plate 135, in which a barrel 95 holding the welding electrode 33 is mounted in a carrier 23 rotatable in the casing 1 of the gun, the barrel 95 is cooled by coolant flowing through concentric annular passages communieating at the front end of the barrel 95. The barrel 95 comprises rearward and forward heads 51, 49 respectively interconnected by outer and inner tubes 59, 61, the space between which is divided by a tube 73 to form the coolant passages 75, 77. An inlet 81 and an outlet 85 in the rearward head 51 are connected by bores 83, 87 to the passages 77, 75.
Patent GB-1097922-A (GB)
Title: Improvements in fluid supply regulators
IPC: H01M8/04
Filed: 1965-04-09
Abstract: 1,097,922. Valves. UNION CARBIDE CORPORATION. April 9, 1965 [April 30, 1964], No. 15065/65. Heading F2V. In a single stage pressure regulator, for supplying gaseous fuel and oxidant at a pressure of about 1 p.s.i.g. at varying rates from a supply pressure of up to 200 atmospheres or for supplying chemical reaction vessels with reactive gases or apparatus for measuring uptake of gases by living matter, the high pressure inlet 51 to a chamber 46 is controlled by a closure 50, seating at 52, which is connected to a stem 48 passing into a chamber 41 through a resilient gland seal 47, of natural rubber, a copolymer of hexafluoropropylene and vinylidene fluoride, neoprene rubber on an organopolysiloxane rubber, which also acts as a pivot for the stem 48 connected by yoke 49 to move with an adjustably spring-loaded diaphragm 42, constructed from the same materials as the resilient gland or from polytetrafluoroethylene, poly-(alpha olefins) or polyurethane elastomers or thin metal sheet, which is acted upon, via a passage 57, by the outlet pressure at 56 of a fuel cell electrode 105 which may (as in the Fig. 3 embodiment) be connected with chamber 53 wherein low-pressure gas is fed to electrode supply conduit 55 from a constricted jet outlet 54 of the chamber 46 to ensure a gas circulation through the loop formed by elements 53, 55, 105 and 56. In a further embodiment (Figs. 4 to 6, not shown), the constricted outlet is formed from a length of glass capillary tubing (68) which delivers the gas into a Venturi throat (78) within the diaphragm chamber (61) and a pressure relief valve may be provided between the valve chamber (66) and diaphragm chamber (61) to cater for high rates of gas consumption. In an alternative embodiment (Fig. 7, not shown), the chambers (66 and 61) may be connected through a spring-seated valve which is unseated upon excessive movement of the yoke (65) which connects valve stem (73) to the diaphragm (62).
Patent GB-1267374-A (GB)
Title: Free exciton indirect transition laser material and apparatus
IPC: H01S5/30
Filed: 1969-03-21
Abstract: 1,267,374. Lasers. MINNESOTA MINING & MFG. CO. 21 March, 1969 [25 March, 1968; 3 March, 1969], No.. 15065/69. Heading HlC. A room temperature semi-conductor laser, Fig. 5, comprises a crystalline compound which. is cut or. cleaved to form. opposed major faces 104, 106 which define the resonator, the semiconductor being end. pumped. by an. electron beam. 114 or by optical methods and being chosen for use by comparison. of its. reflection and spontaneous emission spectra at. 77‹ K. The semi-conductor crystal 100 is mounted on a sapphire support 102, and its end faces may be silvered to. about 90% reflectivity, the stimulated emission passing through the support at 116. The semi-conductor is of a direct band gap kind, that is the.minimum energy in the conduction band lies at substantially the same position in the Brillouin zone as the maximum energy in the valence band, is chosen by comparison of its side pumped reflection and spontaneous . emission spectra at 77‹ K., Figs. 7-14 (not shown), suitable materials for use at room temperature including theoxides; sulphides, telurides or selenides of zinc or cadmium. A xenon lamp or a further laser may also be used to pump the semi-conductor; and a theoretical derivation of the minimum pumping energy required is given.
Patent GB-258003-A (GB)
Title: Improvements in or relating to hospital and like bedsteads with "on and off" castors
IPC: A61G7/05
Filed: 1925-06-10
Abstract: 258,003. Whitfield, S. L., and Whitfields Bedsteads, Ltd. June 10, 1925. Means to facilitate moving bodily.- At one end or both ends of a bedstead, fixed direction or swivelling castor wheels are provided in addition to stump feet y. The wheels are mounted on vertical rods t sliding in tubes f forming part of the frame and can be pressed down by pivoted levers k linked to the rods t to form a toggle. In both extreme positions, shown in Figs. 1 and 3 the levers k lie past their dead centres, and are thus automatically positioned.
Patent GB-855490-A (GB)
Title: Process for concentrating plutonium and/or uranium
IPC: C22B60/02
Filed: 1959-05-04
Abstract: The uranium content of an alloy of aluminium and uranium is increased by heating the alloy with a metal halide in order to volatilize aluminium halide.  The alloy may be heated stepwise to 1000 DEG C. or more with zinc chloride, preferably under vacuum, aluminium chloride being volatilized.  Alternatively the alloy may be heated to 800 DEG -1000 DEG C. under vacuum with aluminium fluoride (cryolite) in which case aluminium monofluoride volatilizes.  The process may be used to regenerate nuclear fuel element, fission products being removed at the same time (see Group XL(a)).
Patent GB-144638-A (GB)
Title: Improvements in sheet metal stamping dies
IPC: B21D22/02
Filed: 1920-06-07
Abstract: 144,638. Budd Manufacturing Co., E. G., (Assignees of Weaver, C. B.). Feb. 13, 1918, [Convention date]. Road vehicles.-Sheet-steel automobile bodies 25, Fig. 9, with wheel housing 26 are stamped by an internal die and a number of external dies co-operating therewith. The internal die consists of two blocks 12, Fig. 2, having a raised surface 24, corresponding in shape to the sides 25, Fig. 9, of the body, which surface co-operates with the dies 21, 22, 23, Fig. 2, to shape the sides 25 and form the flanges 26, 27, 51. The steel sheet preliminarily bent is placed upon the dies 12 and secured by a gate comprising bars 54, 55, 56, 59 hinged at 57 and held by a wedge 62. The dies 12 are separated, against the action of springs 19, by wedges 15 and then the dies 21 &c. are moved in, against counterweight 30 and springs 44, by wedges 35. The plate 17 which carries the wedges 15 has a projection 53 which presses a retaining plate 52 upon the edge on the work. The dies 21, 22, 49 move together by reason of the plate 39 and are guided by pins 37. The dies 23 are recessed at 42 to receive the guide-plate 43, and the dies 12 may be supported on antifriction rollers 18. The sides 11 of the structure are connected by bars 65, 66, the last being in two parts, hinged at 67 and connected by a pin 68.
Patent GB-390969-A (GB)
Title: Improvements in or relating to hair combs
IPC: A45D24/28
Filed: 1932-05-30
Abstract: 390,969. Hair combs. BRASSEL, E., St. Margrethen, St. Gallen, Switzerland. May 30, 1932, No. 15330. [Class 131.] A comb for applying liquid to the scalp during combing comprises a liquid container 2 provided with hollow prongs 13, the container being closed by a lid 1 in which is mounted a pump 4. The pump comprises a cylinder 9 containing a piston 5.mounted on a hollow piston-rod 14 to the interior of which air gains access through a port 15. The end 12 of the cylinder is provided with apertures 11 and a ball valve 7, and a ball valve 6 is mounted at the inner end of the piston-rod 14. In operation, compressed air us forced into the container by pressure on the head 8 of the piston-rod. The hollow prongs 13 may be made of rubber.
Patent GB-325178-A (GB)
Title: Improvements in machines for perforating paper and the like
IPC: B26F1/02
Filed: 1929-05-16
Abstract: 325,178. Haupt, A. May 16, 1929. Reciprocating-punch machines.-In a machine for punching a web an operating shaft 1 carries tappets 2 which depress punches 4 against the urge of springs 6. The shaft 1 is carried in bearings 26 movable for throwing the punches out of operation. The web is fed over a plate 8 bv rollers 11, 13 through sprocket gearing 17, from the shaft 1, which is changeable to vary the speed of the web. The punches and the dies may be adjusted laterally. Each punch-holder may carry a number of punches.
Patent GB-1464353-A (GB)
Title: Compensating circuits for electronic switches
IPC: H04Q3/52
Filed: 1975-04-15
Abstract: 1464353 Gating circuits INTERNATIONAL STANDARD ELECTRIC CORP 15 April 1975 [22 April 1974] 15410/75 Heading H3T In a circuit for compensating for damping due to an electronic switch RON, e.g. a switching element of a telephone exchange, a negative resistance -R is connected in series with the switch, rectifier circuits G1, G2 are connected in shunt with the switch and the resistance, and the outputs from the rectifiers are compared in a comparator K to provide a control signal to adjust the value of the negative resistance so that the absolute values of the voltage drops across the switch and resistance are equal. In a modification, Fig. 2 (not shown) employing transformers (U1, U2) coupling the input and output of the circuit between an exchange and a subscriber a further switch (RON2) is connected in series with rectifier circuit G1 across the first switch (RON1) and the second rectifier circuit G2 is connected across only a portion of the negative resistance. This arrangement provides additional compensation for losses in the transformers. Two similar circuits may be employed in a balanced system Fig. 3 (not shown).
Patent GB-563630-A (GB)
Title: Improvements in and apparatus for the liquid treatment of fibrous material
IPC: D01D10/04
Filed: 1942-11-03
Abstract: Apparatus for the liquid treatment of fibrous material comprises perforate conveyer means for continuously transporting fibrous material through a path, spray means above the conveyer for applying liquid to the material along one or more portions of the path, means for drawing the applied liquid through the material and means in advance of and beyond each of said portions of the path for guiding the conveyer <PICT:0563630/IV/1> means through portions of the parts elevated above the liquid-applying portions.  The conveyer comprises perforated plate sections 2 pivoted together and having overlapping vertical side portions.  The conveyer is supported by rollers 3 travelling on a track 5 which is elevated between liquid treating stations comprising spray heads 13, 14 and suction boxes 11, 12.  The apparatus is intended for successive liquid treatments of viscose rayon staple fibre.  Squeeze rollers may be positioned at the elevated parts of the track to assist in preventing the mixing of liquids from successive stages.  U.S.A. Specification 1,723,998 is referred to.
Patent GB-701011-A (GB)
Title: Improvements in or relating to electrical signal transmission systems
IPC: H03M3/04
Filed: 1951-06-29
Abstract: 701,011. Television. WESTERN ELECTRIC CO., Inc. June 29, 1951 [June 29, 1950], No. 15478/51. Drawings to Specification. Class 40 (3). [Also in Group XL(c)] In a signal transmission system, the value of each successive sample of the message signals to be transmitted is predicted, having regard to the individual values of a plurality of preceding samples, and the transmitted signals represent the errors in such predictions derived by subtracting the predicted samples from the message samples. At the receiver, the original message signal samples are reconstituted by a similar predictor and an adder. The predictor, which is of one of the types described in Specifications 688,099 and 701,012, may for example be a circuit for combining a plurality of preceding samples suitably weighted and of selected polarity to supply the predicted value. In the transmission of television signals the prediction is based on preceding samples in the same line, the preceding lines and preceding frames. The samples and predicted values may each be quantized before subtraction. In another arrangement, the subtractor output is quantized and feeds the predictor which is the same circuit as that used at a receiver for reconstituting the message samples. The transmitted error signals may be sent, for example, as two or three digit binary pulse code groups or error values of below a certain value may be sent as amplitude quantized pulses, greater values being sent as code groups preceded by an identifying pulse. In another arrangement the amplitudes of two error pulses may be jointly transmitted as a pulse with 16 or 25 quantization levels. If the error signal, or any digit of the code group representing the error signal, contains many successive zero values, a code group specifying the number of zeros may be sent in place thereof. Long runs of any particular amplitude may be specified by the same method, the sample amplitude as well as the length of the run being specified. Specification 679,725, [Group XL (c)], also is referred to.
Patent GB-422827-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F38/30
Filed: 1934-05-24
Abstract: 422,827. Transformers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. May 24, 1934, No. 15533. Convention date, May 24, 1933. [Class 38 (ii)] A pot-type transformer has its primary winding contained in a shell, advantageously of metal and connected to a high potential, the shell being open at the top and embedded in a liquid or solid insulating material contained by the pot. A current transformer is shown having a two-part outer casing 11, 13 containing insulating material 12 in which is imbedded a casing 2, connected to the primary terminal 10, and supported by an insulating ring 15. The casing 2, if of metal, is slotted at 6 across its lower end and is lined as shown with heat insulating material 9, while it supports the primary winding 1. Inside and concentric with the primary winding are disposed respectively an insulating tube 8 and the secondary winding wound directly on the core 4 which passes through the shell 2 and the outer casing 13 and has its magnetic circuit completed by a yoke 5 passing round the casing 13. The tube 8 presses through the shell 2 and makes a tight joint with the casing 13 through packing material 14, so that the insulation 12 cannot enter the casing 2 The shell 2, if made of metal, acts as a cooling fin.
Patent GB-117868-A (GB)
Title: Silencer for Engines.
Inventor: HOOTON WILLIAM
IPC: F01N1/06
Filed: 1917-10-26
Abstract: 117,868. Hooton, W. Oct. 26, 1917. Exhaust-silencers.-The exhaust is divided into two streams of equal intensity, which are passed through pipes of different lengths or bores in order to produce interference. In one form, Fig. 1, the exhaust pipe a opens into a chamber b provided with two tubes h, j leading to a single outlet l. The intensities of the two streams may be equalized by adjusting a pivoted plate c in the chamber b'. In order to allow variation of the difference in length between the two tubes h, j, the outlet l is formed on a slidable tube k. In a modification, the plate c is fixed, and the adjustment of the intensities of the two streams is permitted by providing a slotted flange on the exhaust pipe a bolted to a flange on the member carrying the pipes h, j. Fig. 2 shows an arrangement in which the two streams pass through coaxial pipes of different bore, the streams reuniting in an outlet pipe q. The pipe n has an extension t to facilitate its longitudinal adjustment relatively to the pipe m. In the case of multi-cylinder engines, two separate exhaust pipes A, B, each connected to half the total number of cylinders, are connected near their outlets by a passage C, Fig. 5.
Patent GB-311567-A (GB)
Title: Improvements in or relating to wood and like moulding or copying machines
IPC: B44B5/00
Filed: 1928-05-29
Abstract: 311,567. Fairhurst, H. May 29, 1928. Moulding.-A moulding-machine, for example, of the kind described in Specification 287,289 is provided with a work-positioning gauge 1 pivoted at 3 to a sleeve 2 on the pivot post j<1> so as to be horizontally and vertically adjustable. The gauge is attached by a rod 12 to the upper link u so that, on releasing a foot lever to close the work clamp r, the gauge 1 is lowered to the position shown in full lines, but on raising the work-clamp the gauge is raised with it. Handles 26, 27 are provided as shown, and ball bearings m for the work table.
Patent GB-656171-A (GB)
Title: Improvements in or relating to electron discharge apparatus
IPC: H01P5/04
Filed: 1941-12-03
Abstract: 656,171. Velocity - - modulated tubes. LELAND STANFORD JUNIOR UNIVERSITY, BOARD OF TRUSTEES OF. Dec. 3, 1941, No. 15611.. Convention date, May 17. [Class 39 (i)] [Also in Group XL (b)] In a velocity-modulated electron discharge tube in addition to resonator chambers 7, 9 separated by a drift tube 25, a third-bufferresonator chamber 11 is provided close to resonator 9, power taken from this third chamber having no effect on the working of the first two chambers; power may also be taken from the second " catcher " resonator. The electron gun comprises the cathode 3 and control grid 5, the wall 13 of the chamber 7 acting as the first accelerator electrode for the beam which reaches eventually the cooled collector electrode 71. Each resonator chamber comprises a stiff wall 13, 15, 17 and a flexible wall 19, 21, 23 and sets of tuning screws 39, 65 and 77 with lock-nuts are provided for independent tuning, a flange 29 in the drift tube forming an abutment for the screws 39, 65. A further fine adjusting means is provided for tuning the resonator chamber 7; this consists of a stiff spring 49 fixed at 47 to the flange 29, a micrometer screw 57 for flexing the end of the spring, and a thrust-rod 41 bearing on the spring near its fixed end and through a screw 37 on a flange 35 integral with the wall 13 of the resonator chamber. Output loops 85 in resonators 719 may be connected by a concentric line 83 to provide feed-back. Specifications 523,712, 564,858 and 581,983 are referred to.
Patent GB-544818-A (GB)
Title: Improvements in or relating to devices for saving life at sea and the like
IPC: B63C9/04
Filed: 1940-10-26
Abstract: 544,818. Lifesaving-appliance. FLEMING, I. R., and FLEMING, F. E. Oct. 26, 1940, No. 15728. [Class 77] Lifeboats and rafts are fitted with boxes 18 each containing a float 10 capable of being thrown by hand a considerable distance and attached by a life-line 16 to a reel 17. The float may consist of a closed rectangular canvas bag stuffed tightly with kapok or similar buoyant material. Rope hand-grips 13, 13a are stitched to the bag. The lid 19 of the box is attached by chains 20 and hook-and-eye catches. The floats may be coated with luminous paint or fitted with electric lamp. An alternative construction of float consists of two sheets of expanded rubber stiffened by an intermediate sheet of ply-wood.
Patent GB-1525647-A (GB)
Title: Spring suspension system with torsion bars
IPC: B61F5/30
Filed: 1976-04-20
Abstract: 1525647 Torsion bar spring assemblies POLITECHNIKA POZNANSKA 20 April 1976 [18 April 1975 (2)] 15786/76 Heading F2S [Also in Division B7] A torsion bar spring assembly connecting a suspended part 2 to a fixed part 6 includes two torsion bars 1, 1<SP>1</SP> each of which is rotatably mounted on the part 2 and has fixed to each end thereof a respective lever 4, 5 operatively associated with the part 6, the two levers 4, 5 being of different lengths so that displacement of the part 2 relative to the part 6 results in twisting of the bar 1. As shown in Fig. 1, the torsion bar 1 is mounted on the part 2 by bearings 3, the longer lever 4 is connected to the part 6 by a cylindrical pivot, and the shorter lever 5 bears at its end on the part 6. In a suspension for a railway waggon axle 10, Figs. 16 and 17, the two torsion bars 1, 1<SP>1</SP> rotatably mounted on a frame 2 and the longer levers 4, 4<SP>1</SP> co-operate with the shorter levers 5, 5<SP>1</SP> either directly or through slide elements, rollers articulated connectors, cams, toothed segments or rubber elements. In Figs. 20, 22 (not shown) similar arrangements are used to suspend a railway waggon body on a bogie. In a road vehicle suspension, Fig. 18 (not shown) an axle for a road wheel is secured to each of the longer levers. In alternative arrangements there may be two co-axially-aligned integrally-connected torsion bars fitted with a common central lever and two end levers, the end levers being of the same length and the central lever being longer or shorter than the end levers. The torsion bars may be tubular and may have disposed therein auxiliary torsion bars having one fixed end.
Patent GB-400553-A (GB)
Title: Inking roller drive for platen printing presses wherein the inking rollers revolve round the printing form
IPC: B41F1/40
Filed: 1933-06-01
Abstract: 400,553. Printing-machines. SCHWEIZ. INDUSTRIE-GES., Neuhausen, Schaffhausen, Switzerland. June 1, 1933, No. 15867. Convention date, June 9, 1932. [Class 100 (ii).] Inking-apparatus.-In an inking-apparatus for a platen press in which the inking rollers revolve round the forme bed 5, the inking rollers are mounted in a pair of gear wheels 4, 24 eccentrically mounted on the hubs 12 of the bed 5 and engaging gear wheels 3, 22 eccentrically mounted on the main driving shaft 2. The wheels 3, 4 and 22, 24 are connected together by links 11, 23 engaging bosses 3b, 4b, 22b, 24b on the gear wheels. The hubs 12 are mounted in blocks 14, 14a slidably mounted in guide slots 26, 26a in the main frame 1. As the shaft 2 rotates the bed 5 is reciprocated to and from the impression bed and the inking rollers are revolved round the bed 5. The inking rollers comprise a pair of forme-inking rollers 9 engaging inclined slots 17, 18, Fig. 4, in the gear wheels, and a distributing roller 10 mounted in members 19 engaging the spindles of the rollers 9 and drawn inwardly by springs 20. By this arrangement, the rollers 9 are pressed apart out of contact with the roller 10 during their passage over the forme 7.
Patent GB-687138-A (GB)
Title: Improvements relating to the variation of reactance in electrical induction apparatus
IPC: H01F29/10
Filed: 1949-06-14
Abstract: 687,138. Transformers and inductors. BEDIL, M. F. Sept. 13, 1950 [June 14, 1949], No. 15883/49. Class 38 (ii). A core of a variable-reactance induction apparatus is divided. in a direction parallel with the flux path into two mutually movable members F, M, and each is provided with equally spaced transverse regions 2 of high reluctance, which may be air gaps or non-magnetic fillings, whereby the reactance is varied by moving the member M between the limits of its regions 2 being coincident with or intermediate (as shown) those of the member F, the flux respectively passing through the regions 2 or following a zig-zag lower reluctance path to avoid them. Two windings may be carried by the limbs of a core-type core having coupled together two separate elements of the member M adjacent the limbs, and where the member M is split into two elements, working in conjunction with either one or two cores, the gaps 2 may be so arranged that when those of one pin of members F, M are coincident, those of the other pair are at a maximum displacement. This latter arrangement is applied to double- and auto-wound transformers, A.C. potentiometers, and a reactor for varying the voltage between two extreme tappings on a H.V. winding. Many modified arrangements of the cores and coils are disclosed.