baber/WOPTO huggingface dataset:
Patent GB-366086-A (GB)
Title: Improvements applicable to apparatus used in the electrical reproduction of sound
IPC: G11B17/00
Filed: 1930-10-24
Abstract: 366,086. Valve amplifying circuits. CONSTABLE, F. H., St. Johns, Cashio Lane, Letchworth, Hertfordshire, and RADIOVISOR PARENT, Ltd., 28, Little Russell Street, London. Oct. 24, 1930, No. 32065. [Class 40 (v).] In a talking picture installation selectively using either a photo-electric cell or a gramophone pick-up as a source of voice currents, a shaping amplifier is switched in when the source is a photo-electric cell. The output of cell 1 is applied to the grid of valve V<1> through condenser C<1> and grid leak R<4>. The coupling between valves V<1>, V<2> comprises a transformer T<1 >having resistances R<5>, R<6> and inductance L connected in series across its secondary. The common point of resistances R<5>, R<6> is connected to the grid of V<2> and the coupling favours the higher frequencies owing to the increase of impedance of L with frequency. The cell 1 and anodes of the valves are fed through resistances from a common source, and grid bias for valve V<2> is obtained by the use of series-connected heaters.
Patent GB-176845-A (GB)
Title: Improvements in or relating to the distribution of stone or other incombustible dust in coal mines and the like
IPC: E21F5/10
Filed: 1920-11-13
Abstract: 176,845. Oldham, O., (trading as Oldham & Son), Oldham, G., and Oldham, J. Nov. 13, 1920. Dust distributors. - A stone dust distributor for coal mines and the like comprises a colliery tub or other suitable wheeled vehicle supporting a hopper c, Figs. 1 and 2, for the dust and a fan d adapted to drive a blast of air through a pipe d' and out of an upwardly-curved emitting nozzle or jet d<2>, the fan being driven either through a train of gears enclosed in a box g from the wheel shaft b<2> or by hand - operated means when the vehicle is stationary. A claw or other clutch controlled by a fork is fitted on the fan spindle in order that the vehicle may be moved without operating the blast. A free-wheel f is also fitted to the fan shaft so that the blast &c. may be inoperative during the return journey of the device. The hand-operating means comprise a ratchet-lever h fitted to a second free-wheel j on the shaft i and operated by a lever k fitted within handle m. A spring l ensures the return of the lever k after each depression. The air tube outlet nozzle d<2> is arranged in proximity to an opening o situated at the lower end of the hopper; this opening is adapted to be closed or regulated by a pivotally mounted clap valve p, capable of being held inclined to the opening as required. In a modification the hopper opening is adapted to be closed by a sliding shutter. The dust in the hopper is agitated by a pair of rods t coupled by connecting rods u to an eccentric v driven from the shaft i. The rods t may support a sheet or may be connected at intervals by chains &c. to assist in the agitation of the dust. A modified manual operating means comprises a lever pivoted to the gear box and provided with a spring-controlled handle adapted to turn up when not in use. The lever is fitted with a return spring and is connected to the free-wheel f by a chain in which a compensating spring is interposed. In this construction the automatic drive is obtained from all four vehicle wheels, the two axles being connected by a chain and sprockets.
Patent GB-386085-A (GB)
Title: Improved rubbing board
IPC: D06F1/00
Filed: 1932-08-17
Abstract: 386,085. Rubbing-boards. SIMM, M. A., 36, Cranleigh Villas, Kenton, Middlesex. Aug. 17, 1932, No. 32168/31. [Class 138 (ii).] A board d having a brush surface constituted by tufts of hair, bristles, fibre, &c., and with draining apertures d<1> between the tufts is inserted between the grooved side members a of a frame with the grain of the board running transversely to the frame. Reference has been directed by the Comptroller to Specifications 23756/93, 11652/98, 25976/03, and 25173/04, [all in Class 138, Washing &c.].
Patent GB-1182897-A (GB)
Title: Process for Separating and Recovering a Hydrocarbon from a Fermentation Liquor.
IPC: C10G32/00
Filed: 1968-07-05
Abstract: 1,182,897. Recovering hydrocarbons. KYOWA HAKKO KOGYO CO. Ltd. 5 July, 1968 [10 July, 1967], No. 32250/68. Heading C5E. [Also in Division C6] A process for separating the hydrocarbon remaining after fermentation from a fermentation liquor obtained by culturing a hydrocarbon-assimilating micro-organism in a liquid medium containing a hydrocarbon as the main carbon source comprises freezing the fermentation liquor, heating the frozen liquor to melt the same, optionally further heating the melted liquor and separating and recovering the hydrocarbon from the melted liquor. The process is applicable both to the crude fermentation liquor and to a concentrated cell slurry formed therefrom. Formation of the slurry and separation of the hydrocarbon may both be brought about by centrifugation; the liquid may then be permitted to stand for a further time and again centrifuged to separate further hydrocarbon. The hydrocarbon may be a crude oil, heavy oil, light oil or kerosene.
Patent GB-821940-A (GB)
Title: Improvements in or relating to flexible metal tubes
IPC: B21D15/04
Filed: 1955-11-11
Abstract: 821,940. Helically corrugating tubes. POWER AUXILIARIES Ltd. Nov. 5, 1956 [Nov. 11, 1955], No. 32366/55. Classes 83 (2) and 83 (4). A metal tube is formed with continuous helical corrugations by a blade having a substantially continuous, inwardly projecting constant-pitch helical ridge having a lead-in part, the inner radius of which decreases progressively from a radius exceeding, one half of the original outside diameter of the tube to the finishing radius corresponding to the desired depth of corrugation followed by a finishing blade having said finishing radius, the blades being engaged on the tube and caused to move therealong by producing relative rotation about the axis of the tube whereby the tube is progressively corrugated from end to end. A seamless tube 4, or seamwelded tube redrawn after welding, with its leading end tapered, is fed by hand over rolls 5 through a hollow spindle 3 in a headstock 2 to rotary helically corrugating means 11. The rear end of the tube is held against rotation so that the leading end of the tube is corrugated. A cylindrical mandrel 12 is then passed down the tube and it and the leading end of the tube is gripped in a chuck 8 on an axially movable carriage 7 urged away from the means 11 by a weight 9. The corrugating means 11 comprises helically edged blades 13, 14 on a head 15. The edge of the first blade 13 is clear of the tube at 18 then at 16a decreases in radius from slightly in excess of that of the uncorrugated tube to a point 13b where it corresponds to that of the bottom of the corrugations. The second blade 14 of a constant radius equal to that of the point 13b closely follows the trailing end 13b of the first blade 13 and serves to feed the tube axially through the corrugating means 11. Lubricant, e.g. chlorinated wax suspended in a light oil, is fed between the spindle 3 and the tube 4. After corrugating the tapered leading end of the tube is cut off, the tube is cleaned, stress-relieved for about thirty minutes at 700-750‹ F. and then, or immediately after the corrugating, the corrugations are pressed together. This latter operation is effected by placing the corrugated tube 26, Fig. 6, on a mandrel 25. An hydraulic cylinder 19 is then operated to move the mandrel 25 so that a stop member 29 thereon compresses the tube 26 axially against a rotatable thrust pad 27 on a fixed anvil 24, thus closing up the corrugations. Making corrugating means. The blades 13, 14 are first made as radially slotted blades of a flat shape, which are clamped to the helical face of the body 15 to give the desired helix shape, are then heated and quenched, cleaned, chrome-plated and polished. Instead of a helical face on the body 15, spacers may be used.
Patent GB-778458-A (GB)
Title: Altitude control system
IPC: G05D1/06
Filed: 1954-11-09
Abstract: 778,458. Automatic control systems for aircraft. BENDIX AVIATION CORPORATION. Nov. 9, 1954 [Nov. 13, 1953], No. 32426/54. Class 38 (4). To maintain a two-engined aircraft automatically at a chosen altitude, an altituderesponsive bellows is clutched to an inductive type pick-off at that altitude to produce in a stage 14, Fig. 1, A.C. altitude error signals which are applied through a thermionic valve circuit 16 and an amplifier 40 to operate a two-phase reversible servomotor 42 adjusting a propeller speed controller 43 correcting altitude. Propeller speed controller 43 may alternatively be operated manually. Circuit 16 provides signal limiting with operation of an alarm if the altitude error signal exceeds a predetermined value and includes thermally controlled bridge circuits which introduce components dependent on the rate of change of error and the integral of the error. Displacement and rate feedback is provided through stages 46 and 44. The signal from stage 46 is also applied through amplifiers 50, 51 to control servomotors 52, 53 adjusting the aircraft engine throttles, signals dependent on the engine manifold pressures, developed in stages 60, 61, also controlling the engine throttles to ensure a predetermined relationship between the setting of propeller speed controller 43 and engine manifold pressure. This relationship is made non-linear by a stage 58 which is introduced to apply a further signal to the throttle servo systems when the movement of the propeller speed controller 43 exceeds a predetermined upper speed setting. The outputs of amplifiers 50, 51 are maintained at a null when automatic control is not in use by feedback which is then effective through stages 62, 63. An altitude error signal from stage 16 is also combined with a signal from the pitch pick-off of a gyro vertical 28 to control, through a combined thermionic and magnetic amplifier 18, a two-phase reversible servomotor operating the aircraft elevators 22 which thus assist in the attainment of the desired altitude. Displacement and rate feedback is provided through stages 26 and 24. If one engine fails, manual operation of a feathering switch causes a bias voltage to be applied to the input of amplifier 40 to increase the thrust of the other engine. Specifications 603,610, [Group XXXVI], 662,831, 662,833, 662,853, 670,568, 679,560 and 693,085, [Group XL (c)], are referred to.
Patent GB-938496-A (GB)
Title: A loading device for thread winding arrangements
IPC: B65H54/52
Filed: 1961-09-09
Abstract: 938,496. Winding threads and slubbings. E. ASPINALL, J. H. SIMPSON, and A. RATCLIFFE. Aug. 20, 1962 [Sept. 9, 1961], No. 32439/61. Classes 120 (1) and 120 (2). A textile apparatus in which yarn or thread is wound on to a bobbin core 34, Fig. 1, by frictional contact of the core 34 or the package thereon with a driving roller 12, includes a loaded lever 14 having a bobbin engaging part 22 thereon, the bobbin engaging part being formed with a recess 28, Fig. 3, that is open at its rear and along its bottom sides, but closed at its front and along its top sides to engage with a peg 36 of the bobbin. When the lever 14 is in its lowest position, as defined by a stop member 20, the setting of the part 22 is as in Fig. 3, wherein the top side of the recess is slightly nearer at the front than at the rear to the arcuate path P which is followed by a bobbin peg axis as an empty bobbin is carried by the winding on roller 12 into a position beneath the member 22. As the diameter of the package increases, the loaded lever 14 rises to cause the setting of the part 22 to change to that shown in Fig. 5 wherein the inclination of the top side of the recess with respect to the path P is now in the opposite direction to that in Fig. 3, whereby the peg 36 is effectively locked in said recess. The part 22 may be capable of a slight rocking movement with respect to the lever 14. The apparatus may be employed in the condenser of a carding machine. Specification 918,030 is referred to:
Patent GB-1006443-A (GB)
Title: Improvements in or relating to lasts for use in the manufacture of footwear
IPC: A43D3/02
Filed: 1961-09-11
Abstract: 1,006,443. Lasts. T. CHATJIMIKES. Sept. 11, 1961 [Sept. 10, 1960; May 10, 1961], No. 32569/61. Heading A3B. A detachable toe piece 1 is attached to a last 2 by means of a removable threaded screw or bolt 3, and at least one mortise 23 and tenon 2, or like joint is formed between the last and the toe piece to assist registration therebetween. The screw may be disposed in an orifice 31 in the last, as shown, and engage a nut 33 in an orifice 32 in the toe piece, being turned by means of pin 4, or may pass through the toe piece into the last. In the construction shown in Fig. 6 having tenons 23 and securing bolt 22, an interchangeable portion 24 is attached to the last by screws 25.
Patent GB-399667-A (GB)
Title: Improvements in and relating to coats
IPC: A41D1/02
Filed: 1932-11-18
Abstract: 399,667. Wearing-apparel. ROSS, C. J., 227, High Street, Exeter. Nov. 18, 1932, No. 32626. [Class 141.] Coats, particularly for riding and sports purposes, are provided under the arms with box pleats 2 opened and closed by sliding clasp fasteners 4 so as to render the coat adjustable to the wearer's figure. If the coat has a vent, such vent may have a similar fastener. For a loose fit in riding, the fastener 4 opens upwards to expand the coat more at the bottom than at the top. A flap 8 provided with a press stud 9 serves to cover the fastener, the tab 6 of which, when the fastener is fully closed, snaps into a press stud 7 in the coat. In a sports coat where the shoulders require more freedom, the fastener opens downwardly to allow expansion in the upper part.
Patent GB-798719-A (GB)
Title: Furnace closure means
IPC: B01J8/06
Filed: 1956-10-26
Abstract: <PICT:0798719/III/1> <PICT:0798719/III/2> <PICT:0798719/III/3> A catalytic reaction tube 10 (Fig. 2) suspended from the top of a furnace is held at the bottom of the furnace by means of supporting elements comprising grid bars 11 which are connected to one another honeycomb fashion (Fig. 1) with openings 12 for the tubes.  Resting on the grid bars 11 of the supporting elements are insulated bricks 13 of similar cross-section between which gaps 14 are left to prevent direct contact between the bricks.  Each brick is provided with opening 15 for the passage of one of the reaction tubes and may be connected to another brick by means of sealing brick 17 inserted laterally in pocket-like recesses 16.  The supporting elements rest on an angle member 19 which may be rigidly connected to the furnace body (see Fig. 3).
Patent GB-745290-A (GB)
Title: Improvements relating to electric condensers
IPC: H01G5/06
Filed: 1952-12-24
Abstract: 745,290. Temperature sensitive capacitors. OXLEY, R. F. Dec. 17, 1953 [Dec. 24, 1952] No. 32769/52. Class 37. A capacitor with a variable temperature coefficient of capacity comprises a set of parallel semicircular plates 16 angularly adjustable by a screwdriver which intermesh with plates 18 of horseshoe form which are moved laterally (see arrow 19) by a supporting bimetal strip 13 anchored at 11 to ceramic base 10. If the plates 16 are adjusted to equally overlap the two limbs of 18, temperature variation causes no overall change in area of overlap, whereas if they overlap only one limb or more of one limb than the other, rise of temperature causes increase or decrease in overlap area and thus of capacity according to which limb is overlapped most in the neutral position. At a certain temperature, i.e. that at which the axis of rotation coincides with the horseshoe axis, the capacity is independent of the position of the rotating plates within limits. The bimetallic strip may be replaced by an expansible bellows or a thermometer operating a Bourdon tube. In the Provisional Specification further arrangements are described in which the horseshoe shaped electrodes are each replaced by two interconnected semi-circular electrodes spaced apart in the same plane with their diameters parallel. In another arrangement a cylindrical electrode moved normal to its axis by a temperaturesensitive element or a pair of spaced-apart semicylindrical electrodes similarly moved cooperates with a semi-cylindrical electrode which is axially adjustable within it to vary the temperature coefficient according to its position. The rotatable plates in the two cases need not necessarily be semi-circular or semi-cylindrical but may comprise any sector of a circle or segment of a cylinder respectively.
Patent GB-782279-A (GB)
Title: Method of grinding gear teeth and the like
IPC: B23F19/00
Filed: 1954-11-12
Abstract: 782,279. Grinding gear teeth &c. NATIONAL BROACH & MACHINE CO. Nov. 12, 1954 [Dec. 21, 1953], No. 32804/54. Class 60. Gear teeth and the like are ground with longitudinally convex or concave modification by providing a grinding wheel having its edge shaped to conform to profile of a gear tooth and with the plane of the wheel parallel to but offset substantially from a line radial of the gear, rotating the wheel at grinding speed, relatively traversing the gear and wheel parallel to the gear axis to cause the wheel to engage a gear tooth from end to end, controlling the rotation of the gear in accordance with relative traverse in conformity with its helix angle, and imparting a controlled non-uniform rotation to the gear in timed relation to traverse. Apparatus comprises a base 70 on which is a slide 72 carrying stocks 74, 76 mounting a gear G for rotation. The gear is carried by a fixture 78 having rigidly secured thereto a radially projecting arm 80 carrying at its outer end an involute acorn 82 engaging a sine bar 84 carried by a cross slide 86 having a roller 88 engageable with a second sine bar 90 adjustably carried by the base 70. The angularity of the sine bar 90 is set in accordance with the helix or lead angle of the gear. To effect the modification of the teeth, the part of the sine bar 84 co-operating with the acorn 82 comprises a flexible plate 94 in conjunction with means 96 for raising or lowering the central portion of the plate. A pair of co-axial grinding wheels may be provided ; both wheels may be employed simultaneously to produce unmodified accurately ground profiles; the means provided for varying the rotation of the gear as described above is then brought into action to impart a modification to the teeth, this being operative on only one tooth surface at a time. This is applicable to spur gears. For a helical gear 100, Fig. 3, two grinding wheels 102, 104 are provided with their axes separated by a distance D. Reference is made to the grinding of splined discs having peripheral recesses opposite sides of which may be flat, and, to the grinding of gear-like cutters used for finishing gears. Specification 731,331 is referred to.
Patent GB-410214-A (GB)
Title: An automatic regulator for hot water systems
IPC: F24H9/20
Filed: 1932-11-21
Abstract: 410,214. Domestic water heating installations. HARGER, J., 166, Bedford Street South, Liverpool, and GREENE, C., Newyn, Fleetwood Road, Southport, both in Lancashire. Nov. 21, 1932, No. 32810. [Class 64 (i).] The hot water outlet 6 of a storage tank is controlled by a valve 5 opened or closed at predetermined temperatures below the boiling point of the water in the tank by a thermostat 2 close to the outlet, and an unobstructed vent pipe 3 to the atmosphere is also provided. The temperature at which the thermostat acts may be varied by rotating the nut 7. Specification 362,468 is referred to.
Patent GB-988149-A (GB)
Title: A method of producing an electrical contact in the form of a rivet
IPC: B22F3/16
Filed: 1961-09-13
Abstract: 988,149. Forging electrical contacts. SIEMENS SCHUCKERTWERKE A.G. Sept. 13, 1961 [Sept. 13, 1960], No. 32878/61. Headings B3A and B3H. In the after-compacting of rivet shaped electric contacts 1 of sintered material, a threepart pressing mould is used comprising a single piece head former 2 having a head forming recess, a stem former 3 having an opening to receive the stem, and an ejecting and limiting punch 4 dimensioned to fit into the opening, the three parts being relatively movable and so arranged that after the pressing the recess is in close contact with the upper and side surfaces of the head. The contact may be of sintered silver-nickel or copper-lead powder and following the after-compacting it may be surface finished by tumbling with magnesium oxide.
Patent GB-208629-A (GB)
Title: Improvements in connection with machinery for breaking pig iron
IPC: B23D31/00
Filed: 1922-12-02
Abstract: 208,629. Lamberton, J. R. Dec. 2, 1922. Breaking. - A machine for breaking pig-iron has intergeared " pig " and " sow " breaker shafts A, A<1>, Fig. 3, driven through reduction gearing from an electric motor A<5> and is provided with a wedge-actuated head B which clamps the work on a table comprising a pair of fixed parallel bars E, E<1>, the work being fed intermittently along these bars by pawls carried in a reciprocating wheeled carriage mounted on rails beneath the work table. The clamping head B is pivotally mounted in a ram B' provided with a series of superposed wedge surfaces D<1> with which coact wedges D mounted in a slide C<2> which is actuated through linkage C<1>, C, B<6> by a cam B<4>. The bell-crank lever B<6> is also linked to a cross-head B<3> carried by vertical rods on the clamping ram. The feed carriage consisting of two parallel members, one of which is shown at E5, Fig. 5, is reciprocated by a crank-operated rocking shaft and is provided with a series of weighted pawls H which feed the pigs in one direction owing to the engagement of their lower ends with stops H'. The clamping head B and the pawls H on the feed carriage may be simultaneously thrown out of gear without stopping the machine, by a hand lever J'. This lever operates a link L' which releases a spring-preeaed pawl L<2> and enables it to engage with a recess in the spindle C<3> of the clamping wedge slide. The lever J<1> also rocks a bar K<2> into a horizontal position thereby actuating through a roller K<3> and link K<5> a sliding stop-bar K<6> provided with pins K<8> which rock the feed pawls H into a horizontal position thereby arresting the feed.
Patent GB-604855-A (GB)
Title: Improvements relating to dry gas meters
IPC: G01F3/22
Filed: 1945-12-06
Abstract: 604,855. Gas meters. METERS, Ltd., and SIDES, H. Dec. 6, 1945, No. 33026. [Class 54] A dry gas meter is made from easily assembled sections and comprises two casing parts b, c having mating flanges f, g between which is held the edge of the division wall h between the diaphragms. The division wall is attached to the valve plate a which nests into the flanges i on the parts b, c, the valve chamber enclosure k being placed on the plate a before the vertical parts o of the flanges are turned over the flanges m to hold the nested parts. The ends p of the enclosure k extend over the flanges on the plate a and are soldered thereto. The end covers of the casing are soldered to the inwardly flanged ends of the parts b, c and to the ends p of the enclosure k. The gas inlet and outlet branches, Fig. 7, are soldered to opposite sides of the meter case over the projecting joints formed by bending the flanges f over the flanges g.
Patent GB-1404522-A (GB)
Title: Mixtures of monoazoo dyestuffs
IPC: C09B29/08
Filed: 1973-07-12
Abstract: 1404522 Dyeing polyesters BAYER AG 12 July 1973 [13 July 1972] 33291/73 Heading D1B [Also in Division C4] Polyester fibre materials are dyed or printed by treating them with a dyestuff mixture comprising, as its components, at least two different dyestuffs of formula I where X is CN, NO 2  or C 1-4  alkylsulphonyl, Y is H, -CH 3 , -OC 2 H 5  or -OCH 3 , R 1  is H or C 1-4  alkyl, R 2  is C 1-4  alkyl or optionally Cl- or CH 3 -substituted phenyl or phenylalkyl with 1 or 2 C atoms in the alkyl group and Ac is -CO-Q or -SO 2 -Q where Q is C 1  or C 2  alkyl or optionally Cl- or CH 3 -substituted phenyl or phenylalkyl with 1 or 2 C atoms in the alkyl group. The dyestuff mixtures, which give blue or blue-green shades may be applied 'by exhaustion padding and printing processes or by a thermal process.