baber/WOPTO huggingface dataset:
Patent GB-183565-A (GB)
Title: Improvements in binding posts for loose-leaves and the like
IPC: B42F13/12
Filed: 1921-04-23
Abstract: 183,565. Wells, G. N. April 23, 1921. Post files. - In binding-posts of the pin-andsheath type, the head 5 of the sheath 4 is formed with flats 5a to permit opening the leaves close to the binding-posts ; or the head 2 of the pin 1 may be formed with flats. The pin may be formed with fine ribs 6, and the pin or sheath may be split. A number of pins or sheaths are secured to a base.
Patent GB-329120-A (GB)
Title: Receptacle for aseptically storing and dispensing surgical napkins or other sheets
IPC: A47K10/02
Filed: 1929-04-16
Abstract: 329,120. Johnson & Johnson (Gt. Britain), Ltd., (Johnson & Johnson). April 16, 1929. Contents delivering.-A receptacle for aseptically storing and dispensing surgical napkins or other sheets is provided with a cover which, when it is lifted, removes the top sheet; the removing device comprising adhesive means and an arm, spring urged into contact with the top sheet. The receptacle and its cover are preferably of glass, and to the cover is bolted a spring finger 10 with its free end bent at right angles to form an axle for a roller 13 which is always in contact with the top sheet of the pile 9. This roller has an adhesive surface 14 which may consist of surgical tape so as to be renewable.
Patent GB-200615-A (GB)
Title: Improvements in and relating to tapping or screw-threading machines
IPC: B23G1/18
Filed: 1922-04-27
Abstract: 200,615. British Thomson-Houston Co., Ltd., (General Electric Co.). April 27, 1922. Screwing and tapping.-In a screwing or tapping machine the tool-spindle is yieldingly fed bv means of the end thrust provided by helical gears. As applied to a machine for tapping nuts, the spindle 25 is rotated and fed by a helical gearwheel 23 engaging a mating wheel 24 on the spindle, and driven by means of a pinion 21 and toothed sector 19 oscillated through a link having an adjustable throw. The link is connected to a crank-pin on a worm-wheel driven from a continuously rotating belt-pulley. An adjustable brake is provided for retarding the rotation of the spindle and producing the feed when the tap is not cutting, and consists of a U-shaped member 28 loosely mounted on the spindle and gripped between discs 29, of leather or like material, by means of a nut 31 and rings 30 slidably keyed to the spindle, rotation of the member 28 being prevented by a rod 32. The nuts fall by gravity down a hopper 33, and when a nut has been tapped it falls through a slot 45 in an adjustable spring member 36 which is reciprocated by means of a roller, a face cam on the sector, rod 41 and spring 42. The hopper is adjustably mounted on two rods 34 secured to the machine frame at each side of the spindle and parallel therewith.
Patent GB-437111-A (GB)
Title: Improvements relating to the milling of grain
IPC: B02C4/06
Filed: 1934-04-20
Abstract: 437,111. Roller and roller - and - breast mills. HIBBS, S. F. TATTON-, Gilnahirk Road, Belfast. April 20, 1934, No. 11911. [Class 59] In roller-and breast mills arranged in series and having grooved rollers and breasts, the flutes or grooves on each roller are arranged spirally and flutes or grooves of the breast are arranged parallel to the axis of the roller. As shown spirally grooved or fluted rollers 2, 3, driven by separate motors, work in conjunction with breasts or segments 6, 7, having straight grooves or flutes. The breasts are mounted in side brackets and are adjustable by screwed bolts. Grain is fed to a feed hopper 8 provided with a pair of fluted break rolls 9, 10 and drops on to a deflector 14 which directs the material between the roller 2 and breast 6. The material then passes to the roller 3 and breast 7 having grooves of finer pitch, the roller 3 running at a higher peripheral speed than the roller 2. The casing is provided with doors 15<a>, 15<b> and the deflectors may be hinged to direct the material at any stage through an outlet in the casing. The grain may be discharged directly from the break rolls through an orifice in the mill casing.
Patent GB-108889-A (GB)
Title: Improvements in or relating to Apparatus for Generating Gas.
Inventor: MARVIN CORNELIUS JAMES
IPC: A01M13/00
Filed: 1916-08-23
Abstract: 108,889. Marvin, C. J. Aug. 23, 1916. Pumping successive charges of one reagent into another reagent; purifying and drying gases. - Portable apparatus for generating gas by the reaction of two liquid reagents, for example hydroorganic acid gas for fumigating fruit trees, by the reaction of dilute sulphuric acid on a cyanide solution as described in Specification 108,807, [Class 1 (ii), Inorganic compounds other than &c.], comprises two chambers containing the two reagents, a pump connected to the two chambers by means of which successive measured charges of one reagent are pumped from one chamber into the body of reagent in the other chamber, and a gas exit. In the construction shown in Fig. 3, a chamber 7 containing sulphuric acid is surmounted by an annular chamber 6 containing cyanide solution, successive charges of which are pumped into the acid by the pump 31. The piston 43 of the pump is operated by a cross-head 46, guide-rods 47 connected to a ring 48 on the barrel, and handle 49. The stroke of the piston, and consequently the amount of cyanide delivered per stroke to the acid chamber is determined by means of a notched bar 51, Fig. 2, parallel with the pump barrel and carrying a slide 54 which can be set to any desired position corresponding with a scale ma.rked on the pump barrel; a projection 57 on the ring 48 comes into contact with the slide and limits the stroke. The gas generated passes up the neck 9 of the generator, through openings 15 into the annular chambers 16, 17, and then into the chamber 19 and out by the pipe 22. The chamber 19 is provided with an aperture 61 by which liquid carried over can drain back into the chamber 7. The gas is further freed from liquid by means of the trap shown in Fig. 5, which is fitted on the end of the pipe 22, and consists of a metal cylinder 63, the surface of which is covered with perforations 64 and baffles 65, and an outer cylinder 67 in which liquid collects. The whole apparatus is mounted on a wheeled frame.
Patent GB-129819-A (GB)
Title: Improved Barless Front Fitting for a Domestic Cooking Range.
Inventor: KIRBY JOHN IRVING
IPC: F24B1/193
Filed: 1918-07-23
Abstract: 129,819. Kirby, J. I. July 23, 1918. Grates.-A barless grate front fitting, of the kind consisting of a well a<2> with front lip a<6> and sides a<9>, a<10>, has rigidly secured to it, by bolts e, the wing extensions c integral with a lower front plate d and formed with slots by which the whole fitting is secured to the grate.
Patent GB-852718-A (GB)
Title: Improvements in chairs
Inventor: ARENSON ABRAHAM
IPC: A47C5/04
Filed: 1959-04-09
Abstract: 852,718. Chairs. CRONDALE FURNITURE CO. Ltd. April 9, 1959, No. 12002/59. Class 52(2) In a knock down chair in which two similar frame members are collapsible after removal of the back rest 2, each member has a tubular portion 3 carrying legs 5 in which an angle member 6 is rotatably mounted. After removal of the seat 1 and back rest 2, each member 6 is swivellable to a position adjacent a leg 5 (Fig. 2, not shown) so that the chair can be packed flat. Preferably, portion 3 is of square section tubular steel and screws 7 pass through tubular members 6 and enter nuts captive in the base board of upholstered seat 1. Back rest 2 is secured by wood screws 9 or captive nuts and legs 5 are of tubular metal.
Patent GB-529581-A (GB)
Title: Improvements in or relating to assemblies adapted for use in brakes or clutches
IPC: F16D25/04
Filed: 1939-04-21
Abstract: 529,581. Clutches. FAWICK, T. L. April 21, 1939, No. 12037. Convention date, May 13, 1938. [Class 80 (ii)] [Also in Group XXXIV] An assembly for use as a brake or clutch comprises two relatively rotatable structures, one having a conical friction surface and the other including friction members and a directly-acting fluiddistensible member for moving the friction members for engagement with and disengagement from the conical surface in directions oblique to the axis of rotation or substantially normal to the conical surface. On the construction shown, the hub 10 of a wheel is provided with an annular conical brake member 13 adapted to work with arcuate brake shoes 15 mounted on an annular member 16 which is secured to a hub member 18 splined on the axle-housing 20. The member 18 is pressed by springs 23 against an adjustable nut 24. The member 16 has a channel defined by flanges 26, 27 with lug portions fitting in notches formed in the shoes 15. The shoes are pressed to their non-braking positions by springs. Beneath the shoes is a fluid-distensible annular rubber bag 32 having a stem 33 for connection to a source of fluid pressure. Instead of a rubber bag a series of bellows-like metal members, one for each shoe 15, may be provided, such member preferably having filter means, in the form of a cup, for lessening its fluid capacity.
Patent GB-944476-A (GB)
Title: Improved apparatus for supplying disinfectants to water closets and urinals
IPC: G03G9/10
Filed: 1960-04-05
Abstract: 944,476. Disinfecting apparatus for waterwaste preventers. R. H. TURNBULL. June 22, 1961 [April 5, 1960], No. 12043/60. Heading E1C. Apparatus for supplying liquid disinfectant to water closets or urinals of the kind flushed with water from a main syphon tank A, comprises a container D for liquid disinfectant . which has an outlet D1 to the closet or urinal, means for diluting concentrated disinfectant to produce a diluted supply in the container D before it is required and means controlled by a float responsive to the level in the syphon tank A to discharge at least a portion of the diluted disinfectant through the outlet D1 when the float rises in re-filling the tank. In one form to provide diluted disinfectant there is a tank B for concentrated disinfectant and a water-operated vacuum pump C connected to a supply main Cl and drawing concentrated disinfectant from the tank B, mixing it with the water to supply the mixture to the container D, when the valve F is opened. This form is more suitable for a closet and the syphon tank has the float A1 controlling valves F and G. In a modified form for a urinal the float is in a tank for the diluted disinfectant operated by a valve or syphon started by means operated by a float in the main syphon tank towards the end of a flush. This tank operates automatically when filled from a tap which also supplies water to dilute the concentrated disinfectant. In another modification of the first form the vacuum pump is omitted and the tank for concentrated disinfectant is above the container D, into which disinfectant may thus flow under gravity on opening a valve in a connecting pipe when the container float falls for the entry of water from the supply, on opening a valve in the container to flush itmainly when the float of the syphon tank A is beginning to rise after dropping.
Patent GB-575117-A (GB)
Title: Improvements in or relating to air and gas compressors
IPC: F04B39/10
Filed: 1944-06-24
Abstract: 575,117. Valves. HARRIS, K. J., and JACKSON, A. June 24, 1944, No. 12047. Drawings to Specification. [Class 135] [Also in Group XXVIII] The inlet valve of a compressor is a flexible disc of U form anchored at the ends.
Patent GB-660413-A (GB)
Title: A method of preparing solid hydroxylamine sulphate
IPC: C01B21/14
Filed: 1949-05-06
Abstract: Solid hydroxylamine sulphate is prepared by subjecting a solution of the salt in dilute sulphuric acid, obtained by hydrolyzing hydroxylamine disulphonates of alkaline earth metals, to concentration and precipitating the hydroxylamine sulphate by adding a liquid which is miscible with sulphuric acid but which does not easily dissolve hydroxylamine sulphate e.g. aliphatic alcohols or dioxan.  Solutions of calcium nitrate and calcium bisulphate are mixed with stirring at up to 10 DEG C and the mixture saturated with sulphur dioxide to pH.3.6.  The solution of calcium hydroxylamine disulphonate formed is hydrolyzed by heating to 80 DEG C for 1 hour and the calcium sulphate precipitate is filtered off.  The filtrate is concentrated in vacuo at 30 DEG -40 DEG C, and any further calcium sulphate precipitated is filtered off, then further concentrated at 40 DEG -60 DEG C.  The concentrate is either treated directly with denatured alcohol to precipitate the hydroxylamine sulphate or subjected to preliminary cooling to crystallize some of the salt.
Patent GB-339584-A (GB)
Title: Improvements in mixers for road materials and the like
IPC: E01C19/10
Filed: 1930-04-17
Abstract: 339,584. Braham Brown, Ltd., Braham, W. E., and Poynor, F. W. April 17, 1930. Stirrers. - A mixing- blade comprises a cap e which forms the wearing face f and both wearing edges, and is formed with. an undercut groove for fitting on to the projecting portion d on the shank, being secured in position by a single bolt i. The projecting part d is formed with grooves k thus effecting line contact between the parts.
Patent GB-514062-A (GB)
Title: Improvements in or relating to tools for performing finishing operations upon boot or shoe parts
IPC: B24D9/02
Filed: 1938-04-25
Abstract: 514,062. Polishing pads. BRITISH UNITED SHOE MACHINERY CO., Ltd., BULLOCK, A. R., and KING, J. April 25, 1938, Nos. 12276 and 33737. [Class 19] A polishing roll for the bottoms of boots or shoes comprises a wooden hub 10 which is secured on a metal tube 12 and which has adhesively secured thereto, with the interposition of a single wrapping 16 of canvas, a layer 14 of comparatively-hard sponge rubber, to which is adhesively secured another layer 17 of comparatively-soft sponge rubber. Over the layer 17 is adhesively secured a layer 18 of thin leather, the joint of which is arranged spirally. The ends of a renewable fabric cover 20 are gripped against the sides by spikes 24 projecting from metal discs 22 pressed towards each other by a flange 28 and a nut 26 on the tube 12. The hub 10 may have a central groove in which the layer 14 is arranged, the layer 17 then overlying both the layer 14 and the hub flanges. The layers 14 and 17 may be interchanged, and the layer 18 may be of crepe rubber. In a convex heel-finishing roll, the convexity is produced by reducing the thickness of the layer 17 towards its edges. Specifications 332,525 and 322,526, [both in Class 70], are referred to.
Patent GB-111497-A (GB)
Title: Improvements in or relating to Apparatus for Converting or Transforming Electric Currents.
Inventor: WANG KI TUNG
IPC: H02M7/54
Filed: 1916-08-30
Abstract: 111,497. Wang, K. T. Aug. 30, 1916. Commutator switching - arrangements; frequency, changing; polyphase transformers.-Apparatus for converting polyphase current to continuous current or vice versa comprises two transformer cores A, B arranged according to the Scott connexion for transformation from three-phase current to two-phase current, each core having primary windings connected to the three-phase leads X, Y, Z, and secondary windings divided into two sections, each section being' sub-divided into a number of coils having different numbers of turns varying according to a stated law, a coil on one core being connected in series with a coil on the other core and to a segment of the commutator L, M, the brushes of which are driven by a synchronous motor and are connected to the direct-current leads Q. The width of the commutator segments varies with the ratio of the numbers of turns in the two connected coils on the two cores. The phases X, Z are connected so that they produce a resultant magnetic flux in the core A 90 degrees different in phase from that produced in the core B by the phase Y. The secondary S on core A is divided into two sections, that comprising the coils D to E on the right end of the core being wound in the opposite direction to the coils comprised in the parts F to G. Similarly, the coils wound on the core B are divided, those on the upper part being wound in the opposite direction to those in the lower part. In the example described, the coils on cores A, B have respectively 1, 2, 2, 3, 4, 5, 5, 5, 5, 7 7 turns, the coil being connected to the coil on core B having seven turns, the width of the commutator segment to which these coils are connected being given in angular measure as tan -1 1/7 The apparatus may be used for converting alternating current to continuous current or vice versa, and for converting continuous current at one voltage into continuous current at another, two converters being used, one acting as an inverted converter. For changing the frequency, two converters may be used, or only one converter may be used with the brushes driven out of synchronism. The converter may also be used for exciting, compound. ing and cross-compounding, polyphase alternators.
Patent GB-908275-A (GB)
Title: Improvements in or relating to electric motor control systems
Inventor: FRIEDLANDER ERICH SIEGFRIED
IPC: B60L7/04
Filed: 1960-04-08
Abstract: 908,275. Control of several D.C. motors. GENERAL ELECTRIC CO. Ltd. March 28, 1961 [April 8, 1960], No. 12602/60. Class 38 (3). For braking, motors 1 are operated as separately excited generators with their field windings 5 connected in series and their armatures in closed circuits with resistors 10. A magnetic amplifier 6 controls the excitation current in accordance with a current signal, from one of the braking resistors, which is opposed by a signal from rheostat 25, controlled by a braking controller, subject to a modification due to a voltage-feedback winding 22. For motoring, the motors operate as parallelconnected series wound machines. As shown, two rectifiers 2, 4 are used, one for the motoring supply and the other for the braking supply. In a modification, a single rectifier is used for both supplies in association with a change-over switch connected to a tapping on transformer winding 9.
Patent GB-508616-A (GB)
Title: Improvements in and relating to gauge operated relay circuits
IPC: H02P7/20
Filed: 1938-04-27
Abstract: 508,616. Electric control systems. BRITISH THOMSON-HOUSTON CO., Ltd. April 27, 1938, No. 12631. Convention date, April 27, 1937. [Class 40 (i)] [Also in Group XL] The moving member of a magnetic gauge is arranged to upset the balance of a bridge so that relays in the plate circuits of associated valves are operated to indicate the amount of movement. The moving member 18 of the gauge is situated between inductances 16, 17 which are connected in a bridge circuit, the output being connected over high ratio transformer 2 to a number of parallel-connected gasdischarge valves 5, 6, 7 having varying biasses so that relays in the plate circuits of the valves operate in turn to indicate the degree of movement of the pointer. The valves are connected across an alternating or pulsating supply to enable the discharges to be extinguished. The invention is for use in connection with automatic controls such as feed controls for machine tools.
Patent GB-372090-A (GB)
Title: Improvements in or relating to high frequency signalling
IPC: H03C1/50
Filed: 1931-04-29
Abstract: 372,090. Wireless transmitting systems. SOC. FRANCAISE RADIOELECTRIQUE, 79, Boulevard Haussmann, Paris. April 29, 1931, No. 12660. Convention date, May 6, 1930. Addition to 270,749, [Class 40 (v), Wireless signalling &c.]. [Class 40 (v).] The system of modulation by phase-variation of the kind described in the parent Specification is characterized by the use of a balanced-bridge of four tuned impedances, an unmodulated carrier-wave being supplied across one diagonal of the bridge and a modulated carrier-wave, in quadrature with the first, being fed across the other diagonal. The resultant waves, after amplification, are superimposed in opposition in a common circuit feeding the aerial. The balanced bridge comprises four inductances L1, Section 3, Fig. 1, shunt resistances r<1> and two push-pull valves, and is tuned to the frequency of the carrier-wave by condensers C1, C1<1> in the diagonals of the bridge. The bridge circuit is energized by unmodulated waves from a master-oscillator, Section 1, through a coupling L<1>0, and with modulated waves from the same source through a coupling LO and an amplifier, Section 2, the output from which is modulated by the valve amplifiers shown in Section 4. The bridge is capacitatively coupled by the condenser CC1 to the primary circuit L<11>, C<11>, and gives a band filter effect as regards the modulated energy. The modulated currents are in phase-quadrature with the unmodulated wave owing to the tuned coupling. The subsequent amplifier stages 5, 5a are accordingly excited respectively through the couplings L0, L<1>0 to a constant degree but in a varying phase these amplified currents being reproduced in the output circuits L6, C6 of the stages 6, 7 and 6a, 7a respectively. By adjusting the sense of the intervalve couplings the unmodulated excitation due to the coupling L<1>0, Section 1, gives rise to no potential differences across the condensers CC6 feeding the aerial, whilst the modulated currents transferred through the coupling L0, Section 1, set up aerial oscillations similar to the currents flowing in the circuit L11, C1, Section 2. The arrangement is stated to increase the maximun output obtainable from the valve amplifier stages. The anode of each valve comprises a primary circuit L3, C3 damped by the internal resistance of the preceding valve and capacitatively coupled by a condenser CC3 to a secondary circuit L<1>3, C<1>3 damped by a shunt resistance r3, the net effect being that of a band filter. Gridbias for parallel-connected amplifier valves in stages 6, 7 is taken from separate windings such as those shown from the secondary of the coil L<1>4. Valve capacities are neutralized in each case by a coil L7 and condenser N. A corrector circuit L, C, R in Section 4 comper.sates for irregularities in the filter action of the valve anode circuits in Sections 3, 5, 5a, 6, 6a, 7, and 7a.
Patent GB-310192-A (GB)
Title: Improvements in spools for textile threads
IPC: B65H75/18
Filed: 1928-04-30
Abstract: 310,192. Poreye, H. April 30, 1928. Bobbins, spools &c.- A spool comprises a metallic tube 1 having integral annular projections 2 to maintain the wound thread in position. The tube 1 may be formed of a bent sheet with overlapping edges and the thread-end secured there between while characters or other protuberances 3 may be embossed on the tube to prevent slipping of the thread.
Patent GB-552429-A (GB)
Title: Improvements in or relating to looms
IPC: D03D47/00
Filed: 1941-10-03
Abstract: 552,429. Shuttleless looms. ASSOCIATED WEAVERS, Ltd., SEWELL, H. R., and HARWOOD, G. W. Oct. 3, 1941, No. 12771. [Class 142 (ii)] A needle loom for use in weaving fabrics having textile fibres or yarn and metallic wire in both warp and weft has the bobbin 1 carrying the wire weft 2 mounted upon the moving part of the needle mechanism so that as the needle 10 carries the wire weft through the shed the bobbin follows the needle and reduces strain on the wire. A spring 5 adjustable by a nut 6 presses upon the bobbin 1 to tension the wire, or alternatively a felt or like washer may be arranged beneath the bobbin. A pivotally mounted hook 14 is provided upon the fixed loom frame 15 adjacent the fabric selvedge and engages the wefts 2, 12 as the needle enters and withdraws from the shed and ensures a clean selvedge. The sley 18 in beating up forces the weft off the hook 14 which thereafter falls to engage the next wefts.