baber/WOPTO huggingface dataset:
Patent GB-183427-A (GB)
Title: Improvements in hoists
IPC: B66D1/26
Filed: 1922-05-22
Abstract: 183,427. Ingersoll-Rand Co., (Assignees of Ditson, J.). July 20, 1921, [Convention date]. Winches; driving-gear; brakes.- A compact winch is fitted with two drums arranged to be coupled automatically to the driving-mechanism and driven alternatively, one drum being operative for each direction of rotation of the motor. The Figures show the application of the invention to a main and tail rope haulage system in which the two drums are connected to opposite sides of the load. A reversible fluid-pressure motor D is mounted in a casing to which is secured one end of a tube Q carried by the gear box at its other end. The motor drives the central shaft a by means of a crank e, and the drive is transmitted bv spur gear to a driven clutch member u. This member carries a radiallyguided pawl 9, Fig. 3, which projects into the annuLar space between two rings z, 5 carried respectively by the drums v, x. When the clutch member u rotates in the direction of the arrow shown in Fig. 3, the pawl 9 is pushed outwards by cam surfaces 3 on the ring z, and drives the ring 5 by contacting with the teeth 6. Similarly, when the clutch member is reversed, the pawl is pushed inwards by the cam surfaces 7 and drives the ring z. A band brake, operated by a lever 17, is applied to a rim 14 on the drum x. An adjustable compression spring 24 tends to keep the brake lightly applied, but the friction between the brake strap and the drum, when the latter is being driven positively tends to raise the lever 17 and take off the brake. One drum is arranged to rotate on a projecting sleeve of the other drum in order to decrease the overall length of the appliance. All the shafts of the driving-mechanism are fitted with ball bearings, and the framing is provided with a saddle clamp B for securing the appliance to a column, cross-bar, or other support.
Patent GB-235553-A (GB)
Title: Improvements in electron discharge apparatus
IPC: H01J19/82
Filed: 1925-06-04
Abstract: 235,553. British Thomson-Houston Co. Ltd., (Assignees of Warner, J. C.). June 16, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Vacuum tubes. - In a valve having a space-charge grid, a direct connection forming a part of the valve is made between the grid and anode. A four-electrode valve may thus be used with an ordinary four-pin cap. As shown, a cathode 1 is surrounded in turn by a space-charge grid 4, a control grid 3, and an anode 2, and a resistance 8 mounted in the bulb is connected between the space charge grid and the anode. When a direct connection, without the resistance, is made between the grid 4 and anode, the valve is designed so that the current to the grid 4 is small, and of constant value.
Patent GB-539139-A (GB)
Title: Improvements in fluid pressure joints for pipes and other conduits, fittings and the like
IPC: F16L15/04
Filed: 1940-09-23
Abstract: 539,139. Pipe joints. CUTHILL, J., and BOLTON, E. A. Sept. 23, 1940, No. 14484. [Class 99 (i)] In a screwed spigot-andsocket joint in which the spigot has a deformable lip 3 engaging a conical surface 5 in the socket, a shoulder 7 on the spigot is caulked in a recess at the mouth of the socket. The recess 8 may be tapped by a hole through the socket for testing the joint.
Patent GB-198691-A (GB)
Title: Improvements in or relating to gas flow meters
IPC: G01F5/00
Filed: 1923-06-01
Abstract: 198,691. Compagnie pour la Fabrication des Compteurs et Materiel d'Usines Ó Gaz. June 1, 1922, [Convention date]. Closure members, simple lift.-A gas meter is provided with means whereby water is caused to flow at a rate proportional to the flow of gas, the water flow being measured by any suitable liquid meter. The supply of water is regulated by a valve D carried by a floating bell C, the interior and exterior of which are subject to a differential pressure varying with the gas flow and the valve being so shaped that its cross-section at any point is proportional to the square root of the distance from its upper end. The gas conduit A has a Venturi tube or apertured diaphragm, or is provided with a converging-diverging section receiving a Pitot tube.
Patent GB-199571-A (GB)
Title: Improvements in window sashes
IPC: E06B7/14
Filed: 1922-05-23
Abstract: 199,571. Hyde, W. G. May 23, 1922. Windows, preventing condensation on. - The lower and centre rails of window sashes are formed with drainage channels 5, made shallow at the ends, and increasing in depth towards the centre, for conveying water of condensation to drain holes 6, 7. Ventilation apertures 11 are provided in the upper rails 10, in order to reduce condensation on the glass.
Patent GB-1176115-A (GB)
Title: Improvements relating to Food Preservatives comprising Sorbic Acid
IPC: A23L1/00
Filed: 1968-03-26
Abstract: 1,176,115. Sorbic acid. UENO PHARMACEUTICAL CO. Ltd. 26 March, 1968 [27 March, 1967], No. 14539/68. Heading C2C. [Also in Division A2] Sorbic acid powder particles are coated with an edible hardened glyceride oil with a melting temperature in the range 40 to 90 C. such as hardened rape oil, castor oil, beef tallow and whale oil. The product is prepared by melting the hardened oil, adding and dispersing therein a fine powder of sorbic acid the temperature of the melted mixture being maintained below 90 C., and cooling the mixture by spraying into a low temperature chamber.
Patent GB-227720-A (GB)
Title: Improvements in or relating to electrodes for jet-wave commutators and interruptors
IPC: H02M1/30
Filed: 1924-06-16
Abstract: 227,720. Hartmann, J. F. G. P. June 16, 1924. Mercury interrupters.- In a jet-wave commutator or interrupter, which may be used for rectifying alternating currents as described in Specifications 102,977 and 166,654, instead of using solid electrodes for leading in current or taking current from the jet, liquid jets are employed for this purpose, the jet wave passing undamaged through the electrode jets. In the arrangement shown in Fig. 5 in which the jet wave issuing from the nozzle N carries an alternating current introduced through the nozzle N and the electrode E and is put into wave. form by the constant magnetic field F, the rectified current is taken from the electrode E<1> and one or other of the electrodes E1, E2, alternately, which are separated by the insulating wall P with a sharpened edge. The electrode E<1> is constituted by a metal tube with orifices through which parallel jets of mercury are forced under pressure. The jets may impinge on a solid bar connected with the metal tube so as to improve the electrical connection with the jets. The jet electrode may be vertical instead of horizontal. The solid electrodes E<1>, E<2> may be replaced by jet electrodes as shown in Fig. 7, or each of these electrodes may be made up of a single inner jet and a number of outer solid electrodes.
Patent GB-882291-A (GB)
Title: Improvements in expansion joints
IPC: E01D19/06
Filed: 1959-04-29
Abstract: 882,291. Road &c. expansion joints. B.T.R. INDUSTRIES Ltd., and BEAZLEY, T. A. March 18, 1960 [April 29, 1959], No. 14687/59. Class 20(4) A roadway expansion joint which comprises a series of strips or plates 35, Fig. 2, e.g. of metal, held in opposed relation by resilient spacers 40, bearing edgewise upon an underlying support 17 and extending along the gap between concrete slabs 11, 12 to support a resilient closure 20 at the top of the gap, is provided with means which constrains the strips against relative lengthwise movement whilst permitting movement of the strips towards and away from one another. In the exemplified embodiment the means preventing relative lengthwise movement comprises tongues 60, 60a projecting from the strips each slidably engaging a hole 61a, 60, respectively, Fig. 6, in an adjacent strip. The end plates 35a, 35b of the series are provided with apertured lugs 45 which receive dowels 46 projecting into holes 52 in the concrete slabs 11, 12 in order to anchor the end plates to the slabs. The joint may be employed between the approach and roadway of a bridge.
Patent GB-183307-A (GB)
Title: Adjustable forms and bearers for supporting shuttering for concrete floors, beams and the like
IPC: E04G11/48
Filed: 1921-05-27
Abstract: 183,307. Shingleton, L. May 27, 1921. Casting floors in situ. -Floor shuttering supports are formed of flanged bar sections 13, adjustably secured back to back with overlapping joints by means of metal caps 16 which are adapted to receive the heads of shores 21. Each cap is provided with lugs 17, 18, between which the bars 13 are clamped by a screw 20, Fig. 3, or projections 19 on the lug 18 or projections 31 on a washer 30, Fig. 7, may enter holes in the bars to stiffen further the support. The beam shutters are supported by adjustable angles 25 also supported at their overlapping joints by props entering metal shoes on the angles. The depth of the beams is adjustable by forming the sides of adjustable bars 32, 33, secured together by fishplates 35 which have projections 36 entering the holes in the bars. The floor and beam moulds are adjustably connected together. In a modification, the shoe 26 for receiving the head of the prop is provided with only one lug, to which the angles are secured, a recess being formed to receive wedges. The tops of the beam shutters are bevelled at 47, and angle packing 48 is used at the bottom to obviate sharp corners on the beams.
Patent GB-530971-A (GB)
Title: Improvements in and relating to multibreak gas blast circuit breakers
IPC: H01H33/14
Filed: 1939-05-18
Abstract: 530,971. Gas-blast switches. AKT.-GES. BROWN, BOVERI, & CIE. May 18, 1939, No. 14829. Convention date, May 27, 1938. [Class 313 (v)] An air-break isolating switch a1, a2 is placed in series with a gas blast circuit-breaker comprising the series-connected breaks b1... b8 mounted on insulators c1, c2, on a movable framework, the longitudinal members of which serve as air containers d, whereas the cross members house the control valve or valves e and blast valve or valves f. The spacer g communicates with containers d and leads by pipes h1, h2 to, respectively, the switching points and piston i for the isolating blades al, a2. The switching points are shunted by impedances, such as high resistances r1 ... r8, the purpose of which is to equalize the voltage-drops across the individual breaks and reduce the current subsequently to be broken by the isolating switch. The resistances may be located inside or outside the extinguishing chambers. Alternatively, the walls of the latter may be sprayed or metallized inside or out, or be composed of semi-conductive material. Condensers may be used instead, the chamber material having a dielectric-constant greater than 10. Chokes are also referred to. The valves e, f, may, alternatively, be located in the insulator caps k1, k2 containing the pistons i. Each break comprises a fixed nozzle contact m1 and movable pin contact m2, or movable nozzle contact, Fig. 2 (not shown) operated by air-pressure, the contact-members being united to members s1 ... s8 for separating the individual breaks and formed with the blast inlets p and outlets q.
Patent GB-149159-A (GB)
Abstract: 149,159. Benard, H. L. M. J. May 2, 1919. Flash signals.-In a signal lamp for aerial navigation, the supply of illuminant is controlled by any one of a number of interchangeable rotating cams, each adapted to co-operate with a lever, which can be operated by hand without interfering with the cam. Fig. 2 shows a double form of lamp in which a toothed cam d<5> rotated by a clockwork motor operates a bent lever d<3> for controlling the distributing-valve D of the two sets of gas burners B. In a modification, the lever d<3> opens or closes the circuit through one or two electric lamps.
Patent GB-988771-A (GB)
Title: Improvements in or relating to the manufacture of polyetherurethanes
IPC: C08G18/24
Filed: 1961-04-25
Abstract: A method of producing a polyurethane comprises reacting (1) at least one polyisocyanate with (2) at least one polyol selected from the group consisting of a polyether polyol, a mixture of a polyether polyol and a polyester polyol, said mixture having a major amount of ether linkages as compared to ester linkages and a polyether-ester polyol having a major amount of ether linkages as compared to ester linkages, and containing at least two active hydroxyl radicals in amounts sufficient to form a polyurethane in contact with (3) a minor amount by weight based on the total weight of polyol present and sufficient to catalyze the reaction between the polyisocyanate and the polyol and to prevent dry heat degradation of the resulting polyurethane, of at least one of the following catalysts, viz. a divalent beryllium, magnesium, calcium, zinc, strontium, cadmium or barium salt of a carboxylic acid free from ketone groups, a divalent beryllium, magnesium, calcium, zinc, strontium, cadmium or barium phenate salt, or a divalent beryllium, magnesium or calcium derivative of a beta diketone or of an alkyl acetyl acetate.  The reaction may be conducted additionally with a minor amount by weight of a blowing agent sufficient to provide foaming. a tertiary amine catalyst may also be present. Foams can be prepared by the one-shot or prepolymer methods, the catalysts being added in the foaming step. The acids, phenols, diketones and acetoacetates of which the metal derivatives are prepared, and also the polyols, polyisocyanates, blowing agents, amine catalysts and other additives to the reaction mixture are specified; these are largely the same as those of Specification 991,545.  Flexible foam products can be squeezed or wrung after curing to break the cell walls.  In Examples (1) a prepolymer is prepared from hexane 1, 2,6-triol/propylene oxide adduct, hexanetriol-1,2,6, toluene-2,4- and 2,6-diisocyanates, tri-(2-chlorethyl)phosphite and benzoyl chloride.  It is converted to a foam by mixing with a propylene oxide adduct of sorbitol, a propylene oxide adduct (a triol), trichlorofluoromethane and zinc naphthenate; (9) flexible foam is produced by the one-shot method from a glycerol/propylene oxide adduct, polyalkylene oxide polysiloxane block copolymer, water, toluene-2,4 and 2,6-diisocyanates, cyclic triethylenediamine and zinc octoate.  Other catalysts used in examples are mixed cadmium and barium stearates; strontium naphthenate; beryllium di - 2 - ethyl hexoate; tetramethylbutanediamine and mixed strontium and barium laurates; N - dimethyl - N1 - betadimethylaminoethyl piperazine and strontium naphthenate or zinc naphthenate or calcium ethylacetoacetate; cyclic triethylene diamine and beryllium di-2-ethyl hexoate; tetramethyl butanediamine and beryllium acetylacetonate; calcium naphthenate, N-methyl morpholine and cyclic triethylene diamine; cyclic triethylenediamine and beryllium acetylacetonate.
Patent GB-221279-A (GB)
Title: Improvements in or relating to the preparation of sizing glue or the like
IPC: C08B30/12
Filed: 1923-06-08
Abstract: Modified starch for use as an adhesive or a size, is prepared by treating starch with an alkali or alkaline carbonate (1) under diminished pressure, or (2) while passing air or other indifferent gas through the mass, or (3) in presence of a condensing agent such as ammonia, alkaline acetates or bisulphites, or aniline.  In an example, 15 kilos, potato starch suspended in 60 kilos. water are treated on the steam bath with 4 kilos. sodium carbonate at a pressure of 30-40 cms.  The process occupies 1 1/2 hours, after which the product is neutralized, diluted with water to 100 kilos., and stirred until cold.
Patent GB-997436-A (GB)
Title: Means for effecting an operation after a predetermined rotation of a rotatable member
IPC: G05G15/04
Filed: 1962-04-18
Abstract: 997,436. Clutch control. ALLMANNA SVENSKA ELEKTRISKA AB. April 18, 1962 [April 26, 1961], No. 15012/62. Heading F2L. A two-donominational pre-settable counter controls the connection of a driven gear to a rotatable shaft. A shaft 1 carries two freely rotatable gears 2 and 3 driven through gearing at the speed ratio 1 : 10. Adjacent the gear 2 is a numeral drum 4 angularly settable to one of ten positions on the shaft 1 and a similar drum 5 is adjacent the gear 3. The numeral drums and the associated gears have cam projections 8 which engage to provide successive axial movement of the drums 4 and 5 after the predetermined rotation of the gears 3, 4 respectively to cause the drum 10 to engage and be driven by the gear 9.
Patent GB-110574-A (GB)
Title: A New or Improved Electrical Intensifying System.
Inventor: LONGFORD HERBERT GEORGE
Filed: 1916-10-23
Abstract: 110,574. Longford, H. G., Longford, W. W., and Clark, W. A., (trading as Sphinx Manufacturing Co.). and Morris, T. Oct. 23, 1916. Systems for charging and discharging condensers.-A sparking-plug q for an internal combustion engine or any electrode used with high tension current is supplied from a generator a<1> through a condenser, the current passing along one set of the plates. The other set are connected to the return conductor, which may be earthed.
Patent GB-1004213-A (GB)
Title: Semiconductor switching arrangement
Inventor: BAILEY FREDERICK RICHARD
IPC: H03K17/72
Filed: 1963-04-17
Abstract: 1,004,213. Semi-conductor switching circuits. STANDARD TELEPHONES & CABLES Ltd. April 17, 1963, No. 15071/63. Headings H3R and H3T. A switching circuit comprises a semi-conductor controlled rectifier SCR switched on and off by control signals applied to its gate, the current flowing in the " on " state being less than the hold current. As described, the rectifier is connected into the cathode circuit of a transmitter valve V to key it on and off. Closing the key K causes the rectifier SCR to conduct, and the current then flowing through the rectifier is arranged to be less than the hold current so that release of the key K turns the rectifier off. The transmitter may comprise a number of similar stages keyed sequentially or simultaneously.
Patent GB-544419-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B71/00
Filed: 1940-10-10
Abstract: 544,419. Sewing-machines. UNION SPECIAL MACHINE CO. Oct. 10, 1940, No. 15105. Convention date, Jan. 8. [Class 112] Lubricating channels. Oil thrown up from a sump L by gears 47, 46, 45, Fig. 1 is caught in the open end 141 of a tube 140 and delivered by means of wicks to the needle-driving mechanism. The oil drains to a recess 145 and thence is syphoned by wicks in a tube 147 to a reservoir 112. Oil passes from the reservoir by ports to shaft bearings, by the hollow looper shaft 31 to a hook race (this supply being regulated by a screw 34) and by wicks to the pivots &c. of the feed-bar mechanism. Feed by dogs. The feed-bar mechanism is the same as that described in Specification 413,120, but the adjustment of the shaft carrying the arm that determines the stitch length is varied by means of a threaded spindle bearing against an abutment on the shaft to move it against the force of a spring. Specification 544,016 also is referred to.
Patent GB-631368-A (GB)
Title: Improvements in caps for lip stick holders and like containers
IPC: A45D40/06
Filed: 1947-06-09
Abstract: 631,368. Boxes. ELISHA, H. June 9, 1947, No. 15143. [Class 18] A cap C of a captive closure for a tubular lipstick holder A, is divided into two parts C<SP>1</SP>, C<SP>2</SP> connected to a hinge D, pivotally mounted within a U-shaped member G, the extremities of which are pivoted to the holder A. Closure is maintained by a spring E the effect of which, during the opening and closing operation, is overcome by,rocking the member G.
Patent GB-117364-A (GB)
Title: Improvements in the Construction of Vessels in Reinforced Concrete.
IPC: B63B5/16
Filed: 1917-10-18
Abstract: 117,364. Marks, E. C. R., (N.I.C.A. Soc. Anon. Navi Italiane Cemento Armato). Oct. 18,1917. Concrete vessels. - A reinforced-concrete vessel comprises an outer structure or skin 1, of the usual shape, and an inner skin 2 of curved tubular form connected to the inner bottom 6 and deck, respectively. Transverse bulkheads 3, and longitudinal and transverse webs 4 between the skins, are provided, the latter forming compartments with hatchways 9 in the deck. The compartments may be watertight and utilized for cargo or ballast. Openings 7, closed by watertight doors, provide for access for the removal of goods from the side compartments.
Patent GB-953369-A (GB)
Title: Improvements in or relating to the production of melamine
Filed: 1961-04-26
Abstract: Melamine is produced from a melamine-forming substance and excess ammonia at elevated pressure and temperature in the absence of catalysts by introducing the melamine-forming substance and ammonia into the lower part of a vertical reaction tube at such a temperature that reaction occurs in the gas phase (e.g. 300-600 DEG C. at 40-200 atmospheres), wherein the reaction is completed by the reaction mixture moving upwardly through a sufficiently long zone of the reaction tube free of solid particles and expanding in gaseous form at the upper end thereof. The reactants may be pre-heated externally of the reaction tube, or may passed to the bottom of the tube through pipes passing down through the reaction tube. Specified melamine-forming materials are cyanamide, dicyandiamide, ammonium cyanate, urea or a derivative thereof, guanidine, or mixtures thereof.  Specifications 704,593 and 719,662 are referred to.
Patent GB-495117-A (GB)
Title: Improvements relating to control mechanism for variable throw hydraulic pumps
IPC: F04B49/02
Filed: 1937-06-01
Abstract: 495,117. Pump control systems. NEWTON BROS. (DERBY), Ltd., and BODDY, W. H. June 1, 1937, No. 15176. [Class 135] [Also in Group XXVIII] Control mechanism for a variable-throw hydraulic pump is arranged so that when the pump stops the loading pressure on the control member against which the pump outlet pressure acts is reduced to a minimum to allow the pump on restarting to reach full speed with a minimum of power, after which the load is progressively adjusted until the normal pressure is reached. The Figure shows the application of the invention to a system including a fluidpressure servomotor having a double-acting cylinder or two single-acting cylinders controlled by a piston valve a. This valve is connected by a lever d to a tubular member g slidably mounted on a stationary plunger h having an axial passage h<1> through which pump outlet pressure is admitted to the inside of the member g. The member g is loaded by a spring m arranged between a flange k and a piston m subject to pump outlet pressure. The outward movement of the piston and therefor the compression of the loading spring is limited by co-operating shoulders s, t. Pressure is admitted to the cylinder o through an adjustable needle valve q and is exhausted, when the pump stops through a non-return valve r. Specification 460,453 is referred to.
Patent GB-229925-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1924-06-24
Abstract: 229,925. Dickinson, W. June 24, 1924. Tobacco pipes.-A vertical chamber 6 bored in the rear wall of the bowl A crosses the stem bore c and houses a replaceable absorbent plug D. The plug D is provided at its upper end with a ring or knob d<1> and is preferably stiffened with wires d. The chamber b may be wholly or partly lined with metal or other material b<1>. The tobacco chamber in the bowl A may be bored eccentrically.