baber/WOPTO huggingface dataset:
Patent GB-554364-A (GB)
Title: Improvements in self-locking metal washers
IPC: F16B2/00
Filed: 1942-05-04
Abstract: 554,364. Producing coherent masses from powdered metal. LENNOX, J. W. May 4, 1942, No. 5975. [Class 82 (i)] [Also in Groups XXV, V and XXII] Lock washers have abrasive grains embedded in and projecting from at least one face and they are prepared from a mixture of metal powder and abrasive. Carborundum, corundum, or tungsten carbide loaded with cobalt may form the abrasive and be mixed with powdered iron, steel, alloy steel, copper, brass or bronze. The abrasive is ten to 20 per cent. of volume of the metal powder and is from 60 to 150 mesh. If pressing to form the compact is done cold the metal powder is from 200 to 400 mesh but if hot then from 80 to 200 mesh, the pressure being 15 to 40 tons per square inch from 2 to 12 tons respectively. For iron and powder the sintering temperature is between 1000 and 1100‹ C. A specific example is given.
Patent GB-584263-A (GB)
Title: Improvements in or relating to electric heaters
IPC: H05B3/34
Filed: 1944-03-31
Abstract: 584,263. Electric heating resistances. HUGHES, J. W. March 31, 1944, No. 5993. Drawings to Specification. [Class 39 (iii)] In a black-heat warming strip, weft-threads of resistance wire are insulated from any surface to which the strip is applied by causing both warp and weft threads of asbestos to be wrinkled and stand proud of the wire which alternates with weft threads of asbestos. For preventing freezing in cooling systems &c. the strip, which may have end portions of asbestos alone, is wrapped round the water pipe &c. and may be coated with an insulating varnish &c. The strip may alternatively be enclosed in an insulating sheath and is stated to be applicable to the warming of carpets, wall panels &c.
Patent GB-242499-A (GB)
Title: Improvements in and relating to the furnaces of boilers and the like
IPC: F23M3/00
Filed: 1925-03-05
Abstract: 242,499. Neil, J., and Neil, J. M. March 5, 1925. Fire-bridges of the type built up of spaced plate members arranged on edge, air from below the grate being passed behind the bridge and into the fire space between the front edges of the plate members, have brickwork built upon the horizontal upper edges of the plate members. The transverse bar 1 supporting the grate bars 2 has a ledge 3 upon which rest the front lower edges of the plate members 4 having projecting flanges 5, 9, 10. The rear lower edges of the plate members rest on a flange 8 projecting from a back plate 7 and the flat upper edges support the fire-bricks 6. Continuous walls are formed by the flanges 9, 10 so that air from beneath the grate is divided into two streams, part passing into the fire through the grating formed by the lower front edges of the plates 4 and part through openings 14 into a small space 11 between the back plate 7 and the fire-bricks 6, whence it issues through a grating 12. The openings 14 are controlled by a sliding damper 13 arranged horizontally on rods 15 and operated by a rod 16 extending to the front of the furnace.. In a modification the upper edges of the plate members 4 are flat and provided with flanges so that a continuous horizontal surface is formed on which the bricks 6 are built. The back plate 7 in this form has two walls enclosing the chamber 11, which may be provided with ribs or partitions, and the damper 13 is arranged vertically and controls an aperture in the lower part of the chamber 11.
Patent GB-1365652-A (GB)
Title: Vehicle steering wheels
IPC: B62D1/06
Filed: 1973-02-07
Abstract: 1365652 Vehicle steering wheels DAIMLERBENZ AG 7 Feb 1973 [16 Feb 1972] 6046/73 Heading B7J [Also in Division H1] A vehicle steering wheel has a rim comprising a rigid core 3 encased by a resilient, e.g. foamed polyurethane outer cover 3 in which there is embedded a flexible tube 5 containing electric contact ribbons 7, 8 which contact one another when pressure is applied to the cover 3 to actuate, for example, a horn. Leads 10, 11 in spoke 9 are connected with ribbons 7, 8.
Patent GB-396841-A (GB)
Title: Improvements in or relating to mandrels for use in making metal tubes
IPC: B21C3/16
Filed: 1932-03-01
Abstract: 396,841. Making tubes. GARNER, J. R., Sheffield Tube Works, Alsing Road, Wincobank, Sheffield. March 1, 1932, No. 6134. [Classes 83 (ii) and 83 (iv).] A mandrel 5 for making tubes is provided with a pointed or conical end 6 which pierces the billet as it is being cupped or reduced by pushing through dies. Fig. 2 shows the billet after this operation. The edges may be rounded at 8 and 9.
Patent GB-196760-A (GB)
Title: Improvements in, or relating to, motor cycles
IPC: B62M7/00
Filed: 1922-03-02
Abstract: 196,760. Downs, N. T., and Dyke, C. H. March 2, 1922. Motor-cycles; motors and gear-boxes, mounting or supporting.-In motor-cycles of the type in which the power unit is accommodated between the front diagonal and the seat tube portion of a loop type frame the engine is mounted by means of three brackets or sets of brackets d, d<1>, d<2>, the rearward bracket d<2> being adapted to support the magneto e and the change gear box f, which can be adjusted longitudinally or removed without disturbing the engine, or its supports.
Patent GB-734773-A (GB)
Title: Improvements in or relating to textile cap spinning frames
Inventor: HANNAH DOROTHY MARGARET
IPC: D01H1/06
Filed: 1952-03-10
Abstract: 734,773. Spinning caps. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 25, 1953 [March 10, 1952], No. 6191/52. Drawings to Specification. Class 120(2). A cap for textile spinning has the exterior surface at the lower end of the cap tapered so as to provide a progressively increasing external cap diameter from the lower edge upwardly, the inclination of the tapered formation with the cap axis being determined as a particular solution, or an approximation thereof, of the general equations of motion of yarn when it is flying freely in balloon formation and corresponding approximately to the solution for which the inclination of the yarn to the cap axis at the base of the balloon is greatest, the axial extent of the tapered formation being such as to compensate for all usual changes in bobbin size during spinning so that the usual fall in yarn tension in the balloon and between the cap edge and the bobbin during the build up of the latter is either prevented or greatly reduced. The theory of the equations of motion of yarn flying freely in balloon formation is dealt with briefly in the Specification and is given more fully in the papers entitled " Applications of a theory of the spinning balloon by D. M. Hannah, printed in the Journal of the Textile Institute, volume 43, No. 10, dated October, 1952.
Patent GB-124603-A (GB)
Title: Improvements in Means for Preventing or Consuming Smoke in Furnaces.
Inventor: HUELIN JAMES WILSON
IPC: F23L9/00
Filed: 1918-04-11
Abstract: 124,603. Huelin, J. W. April 11, 1918. Air, supplying; arir suppty, regulating; baffles.-A regulated supply of air is delivered through an opening in the deadplate, the air being heated by passing under and over a plate c beneath the grate. The deadplate is fitted with a flap valve a, the closing of which is automatically controlled by a dash-pot. The plate c is formed in one or more sections and is adapted to be tilted or otherwise moved by means of its supporting rods q, which are pivoted at t. A fire-brick baffle v is preferably arranged behind the fire-bridge.
Patent GB-1433621-A (GB)
Title: Tobacco moistening method open cores
IPC: A24B3/02
Filed: 1973-02-08
Abstract: 1433621 Moistening tobacco AMF INC 29 Jan 1974 [8 Feb 1973] 6357/73 Heading A2C A body 20 of tobacco leaves disposed in substantially horizontal layers and having at least one elongate cavity 22 formed therein is placed within an enclosed chamber 23 before evacuating the chamber e.g. through pipe 25, thereafter introducing steam into the chamber e.g. through pipe 28 and allowing steam to pass into the tobacco, the tobacco being unsupported at the elongate surface of the cavity, such that the tobacco receives a predetermined quantity of moisture. Fig. 2 shows a modification of the apparatus of Fig. 1 in which a perforated conveyor belt 36 running on pulleys 38, 39 convey tobacco bales to coring station, steaming and evacuating stations and finally delivers the tobacco having the requisite moisture content.
Patent GB-799364-A (GB)
Title: Pulverised fuel burners
Inventor: WADE GEORGE ROLAND
IPC: F23L17/00
Filed: 1956-03-01
Abstract: 799,364. Burners. LUCAS (INDUSTRIES), Ltd., J. Feb. 28, 1957 [March 1, 1956], No. 6431/56. Class 75(1) A pulverized fuel burner comprises a body a having at its centre an oil spraying nozzle e for providing an ignition flame, an annular cavity f surrounding the nozzle, an annular air duct g containing vanes h directing a swirling air stream into the open end of the cavity f and a tangentially arranged pulverized fuel inlet i situated adjacent the closed end of the cavity. The annular air duct g is formed by a pair of flat surfaces and receives air from an air jacket c surrounding the combustion chamber b. The annular cavity f is of tapered form.
Patent GB-1012195-A (GB)
Title: Vacuum furnaces
IPC: F27D11/02
Filed: 1964-02-17
Abstract: 1,012,195. Electric furnaces. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. Feb. 17, 1964 [March 26, 1963], No. 6524/64. Heading H5H. A vacuum furnace has heating elements 15a, 15b mounted above and below the charge 14 on a unit movable to the dotted position shown to facilitate the circulate of cooling, inert or reactive gas introduced at 21. Circulation is assisted by a fan 22. There are thermally insulated side walls (Fig. 2, not shown) and a door 19 raised when the heater unit is slid back. Cooling devices may be arranged between the side walls and the internal wall of the airtight vessel 11.
Patent GB-810403-A (GB)
Title: 1, 1, 2-tri-(1-cyanoethyl) hydrazine
Filed: 1957-02-27
Abstract: The invention comprises 1:1:2 - tri - (1-cyanoethyl) hydrazine of the formula <FORM:0810403/IV (b)/1> which is prepared by reacting one mol. of hydrazine with at least three mols. of lactonitrile at a temperature of from 0 DEG  to 100 DEG  C.ALSO:A nematocidal composition comprises 1 : 1 : 2-tri-(l-cyanoethyl) hydrazine and an inert liquid or solid carrier.  Solid carriers are fuller's earth, talc, pyrophyllite and diatomaceous earth.  Liquid carriers are aerosol sprays or water-immiscible organic solvents, such as benzene or kerosene. The latter solutions may be stirred into water, preferably in presence of a wetting agent, e.g. sodium dioctyl sulphosuccinate or alkylaryl polyether alcohols.  The composition may be used in conjunction with soil-conditioning and fertilizing materials.
Patent GB-194707-A (GB)
Title: Improvements in apparatus for dry shampooing hair
IPC: A45D19/06
Filed: 1923-03-08
Abstract: 194,707. Montjol, E. E. J. March 8, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Hair and head, special washing-appliances for.-Apparatus for dry-shampooing the hair with ether, benzine, &c. comprises a conical basin a, the upper edge of which is formed with a recess c on one side, the surface d below the recess being of less inclination than the opposite surface of the cone so as to form a greater surface area to receive the hair. A flask l is attached to the lower end g of the cone by means of a bayonet joint, and provided with a tap m. The apparatus is adjustably secured to the back of a chair by means of a bar f.
Patent GB-530238-A (GB)
Title: Improvements in or relating to the control of electric current by means of dischargeapparatus
IPC: B23K11/24
Filed: 1939-03-01
Abstract: 530,238. Control systems for resistance welding; rectifying alternate currents. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. March 1, 1939, Nos. 6698 and 6699. Convention dates, March 5, 1938, and June 16, 1938. [Classes 38 (ii) and 38 (iv)] In apparatus wherein an alternating current is controlled by " ignitrons " the potentials of the starting electrodes of the ignitrons are supplied from the source of the current to be controlled through circuits which do not include rectifying devices or other means for distorting the potential curve. Fig. 1 shows such an arrangement applied to a seam-welding machine. The ignitrons 41, 43 are connected back-to-back across the supply leads 35, 37 in series with the primary 33 of the welding transformer and their igniting electrodes 49 are connected by conductor 91, 93 and a switch 85. The switch 85 is operated by a relay controlled by a commutator 57 driven by a motor 55, so that its circuit is closed for definite periods, each of which comprises several periods of the current. The relation of these periods and the result of the switch being closed at different points of the current-cycle are discussed in the Specification. The igniting- electrode and cathode of each rectifier may be connected by auxiliary circuiting including rectifiers. In a modification the winding 33 may be supplied directly from the mains through a transformer in opposition to the current through the ignitron, and the igniting-electrodes supplied from the tapping secondary of the transformer. In another modification for spot welding the igniting electrodes are connected through a relay arranged to break the circuit after a definite adjustable interval. Fig. 22 shows an arrangement for rectifying and controlling the current. The ignitrons 301, 303 are connected to the secondary of a transformer 299 and the load 297 to a centre tapping on 'the transformer. The igniting- electrodes 309 are supplied from the secondaries 319, 317 of a transformer 321 through windings 323, 325 on the side limb of a reactor 315. The load is connected in series with a winding 313 on the centre limb of the reactor, which is presaturated from a source 329. By regulating the degree of the saturation the point of the cycle at which the ignitrons conduct can be adjusted.
Patent GB-1475984-A (GB)
Title: Mechanisms for transporting perforated strip material
IPC: G03B1/22
Filed: 1973-02-12
Abstract: 1475984 Film transport mechanism COLOUR CASSETTES Ltd and COLORCASSETTE Inc 9 May 1974 [12 Feb 1973] 6735/73 Heading G2E A transport mechanism for perforated film, suitable for use in a cinÚ camera or projector, or a flying spot television scanner apparatus, comprises a first lever movable cyclically by a first cam, and a second lever movable cyclically by a second cam, claw means being provided on one of the levers, and the levers being coupled together so that as the cams rotate, the claw means intermittently engage and transport the film. As shown in Fig. 2, the two cams 48 and 49 rotate on a common shaft 47 supported by a plate 46. Cam 49 is a profile cam having peripheral flanges 52, 53, and the profile is engaged by a lever 54 drawn thereagainst by a spring 58, and held against lateral movement by the flanges. Lever 54 is attached to plate 46 by a pivot 55 at one end, and is attached at its other end by a pivot 59 to a second lever 58. A pin 60 on lever 58 slides in a cam groove 50 in the second cam 49. The end of lever 58 remote from pivot 59 has three claws 61, 62, 63 which engage three successive perforations in the filmstrip. Each lever carries out one cycle of angular oscillation with one revolution of its respective cam, and as the two cams rotate together as one unit the claws carry out a four-sided motion, drawing the film a distance of one frame through the film gate. The shaft 47 may rotate at either 1000 or 1500 rpm, according to whether the film is to be drawn through the gate at 16<SP>2</SP>/ 3  or 25 frames per second. The pull-down action of the lever 58 is synchronized with the field flyback time when used with a flying spot scanner. Fig. 7 (not shown) is a mechanism for maintaining a loop between the film gate and a sound head, in which, when the loop becomes too short, a micro-switch is actuated which shuts off the transport sprocket.
Patent GB-890672-A (GB)
Title: Improvements in thrust bearing
IPC: E01D19/04
Filed: 1960-02-26
Abstract: 890,672. Resilent mountings. UNITED STATES RUBBER CO. Feb. 26, 1960 [March 12, 1959], No. 6775/60. Class 108(3). A thrust bearing. Fig. 5, for supporting heavy loads while permitting substantially friction-free movements transversely of the applied load comprises a pair of rigid plates 29, 30 with an interposed layer of rubber 31 which is confined as by flanges 29b or rocking plates 32 which restrict transverse flow of the rubber under compressive loads while permitting shear deformation thereof. The rigid flanges 29b of the plate 29 permit movements of the plate 30 in a direction parallel to the flanges resulting in the rocking of the plates 32 which are located in opposed dovetail grooves 34 in the plates 29, 30. The bearing may be used in place of thrust plates supporting the journal bearings in a calendar rolling machine to reduce the vertical adjustment forces under heavy side loads. The bearing may also be used as an end support for a bridge or for mounting machinery and a pair of bearings may be arranged, one above the other and disposed at right angles to permit relative movements in two directions.
Patent GB-702899-A (GB)
Title: Improvements in or relating to a windshield cleaner
IPC: B60S1/38
Filed: 1951-05-04
Abstract: 702,899. Windscreen wipers. TRICO PRODUCTS CORPORATION. May 4, 1951 [May 10, 1950], No. 6876/53. Divided out of 702,849. Drawings to Specification. Class 138 (1) A holder for a windshield wiper squeegee comprises a one-piece frame having side rails joined at intervals by upwardly arched cross straps between which are fingers which extend inwardly towards one another from the side rails. The subject-matter of this Specification is disclosed in Specification 702,849 which is referred to.
Patent GB-346535-A (GB)
Title: Improvements in head-rests
IPC: A61G15/12
Filed: 1930-03-03
Abstract: 346,535. Head-rests. WHITE DENTAL MANUFACTURING CO., S. S., 211, South 12th Street, Philadelphia, U.S.A. -(Assignees of Angell, R. C. ; Prince Bay, Staten Island, New York, U.S.A.) March 3, 1930, No. 6900. Convention date, March 23, 1929. [Class 52 (ii).] A head-rest assembly comprises a head-rest carrier 8 with a tang 5, and a support 1 having a clamp provided with relatively movable members, toggle means between said members, and means arranged to draw said members together to actuate the toggle means and thereby to clamp the tang in adjusted relation with respect to the support. Such a device is shown in the drawings, comprising a fixed member 2, movable members 25, 3, between which the tang 5 can be gripped, a toggle device 20, 21, 23, and a central bolt 42. When this bolt is tightened, the members 2, 25, 3 are drawn together, and the members 20 are thrust radially into frictional engagement with the member 2, while the tang 5 is gripped between the members 25, 3.
Patent GB-640646-A (GB)
Title: Improvements in or relating to glass stem structures, for electrical apparatus
IPC: H01J5/40
Filed: 1947-03-12
Abstract: 640,646. Discharge apparatus. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. March 12, 1947, No. 6913. Convention date, Jan. 15, 1946. [Class 39 (i)] [Also in Group XI] A method of fabricating a stem structure for electrical apparatus having an envelope at least part of which is of a vitreous material, comprises the steps of sealing one end of a tubular collar to a closure member carrying an electrical lead or leads, inserting the sealed end of said tubular collar into a tubular portion and sealing the overlapping end of said tubular portion to a peripheral part of said collar intermediate the ends thereof ; sealing is thus effected at outwardly exposed peripheries to which the flame has direct access. A stem for an electron discharge device comprises a tubular portion 17, collar 18, and bowl section or closure 19. The collar 18 is sealed to a large metallic eyelet 20 which serves as a grid support in the completed device. In the first sealing operation, the eyelet 20 is gripped by lathe jaws 22, and the closure 19, prefabricated with lead-in wires 23 therethrough and exhaust tube 30 is inserted into the lower end of the collar 18 and sealed thereto at the joint 26. The tubular portion 17 is approximately equal in diameter to the collar, but its upper portion is divergent to an extent sufficient to permit entry of the collar as far as the peripheral bead 27, which in the second sealing operation is sealed to the upper periphery of the tubular portion, which is gripped at the flange 15 by lathe jaws 31 during the operation.
Patent GB-1061171-A (GB)
Title: A laser oscillator
IPC: H01S3/121
Filed: 1964-02-20
Abstract: 1,061,171. Lasers. HITACHI SEISAKUSHO KABUSHIKI KAISHA. Feb. 20, 1964 [Feb. 23, 1963], No. 7171/64. Heading H1C. Q-switching of a laser is achieved by displacing one of the reflecting surfaces of the resonant cavity. In the embodiment of Fig. 1 (not shown) one end surface of the solid active medium is silvered to form a mirror 2 and the other end 3 left plain, the resonant cavity being completed by right-angled prism 3a positioned so that a transmitting surface of the prism is parallel with mirror 2. During pumping of the active medium by a Xenon lamp 4 the prism is rotated about axis x, y or (x), (y) so that light from the laser element 1 is not reflected back through surface 3 to maintain oscillation. After a state of large inverse population has been attained the prism is rotated back to its initial position to have its transmitting surface parallel with mirror 2 to form a resonant cavity and cause laser action to occur. In the arrangement of Fig. 4 (not shown) the active medium is gaseous helium, neon, and is pumped by alternating current from high frequency source (4). The resonant cavity is formed by confocal reflecting mirrors (2), (3a) the latter mirror being rotatable at a fixed frequency to cause Q-switching. Plane reflecting mirrors may also be used or prisms.
Patent GB-230868-A (GB)
Title: An improved manufacture of cylinders for internal combustion engines
IPC: B23K1/00
Filed: 1925-03-17
Abstract: 230,868. Zoller, A. March 17, 1924, [Convention date]. Cylinders, construction of and cooling.-Twin cylinders having a common combustion space are made of steel by welding the parts together. The inlet and exhaust passages 6 which are each formed in two pieces, stamped from sheet metal and welded together along the line XX, and the plates 2, 3, 4 are first welded in position on the cylinder barrels 1 and then the water jacket 5, formed of sheet metal in two pieces, united along the line YY, is welded around them. The part 7 of the cylinder head is stamped and in a multi-cylinder engine several of the parts are welded together. A stamped water jacket dome 10, common to all the cylinders, is then welded in position, tubular distance pieces 8 for holding down screws and branches 9 having been inserted.
Patent GB-1078228-A (GB)
Title: Acceleration measuring device
IPC: G01L1/16
Filed: 1965-02-19
Abstract: 1,078,228. Accelerometers. KISTLER INSTRUMENTS A. G. Feb. 19, 1965 [Feb. 19, 1964], No. 7247/65. Heading G1N. An accelerometer comprises a Piezo-electric element prestressed by seismic mass 1 and clamp sleeve 2, radial stresses due to differential thermal expansion of the Piezo-electric element and the seismic mass being reduced by providing discs 7, 8 having a coefficient of thermal expansion approximately equal to that of the element. One disc 8 may constitute an electrode connected to terminal 17 through a connecting spring 15. The Piezo-electric element consists of an odd number of quartz, barium titanate or lead zirconate discs 4. The prestressing of the element is adjusted by ring 11 and the device is pre-calibrated by removing material 13 from seismic mass 1. Casing 14 is evacuated. In a modification the Piezo-electric element is connected to a terminal at the side of the casing through a connecting pin attached to the lower disc 7. The seismic mass has a central conical depression for receiving a ball to which a static calibrating force may be applied. The coefficient of expansion of disc 8 may be greater than that of mass 1.