baber/WOPTO huggingface dataset:
Patent GB-227483-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: B30B11/02
Filed: 1923-09-14
Abstract: 227,483. Greenwood & Batley, Ltd., and Barker, J. H. Sept. 14, 1923. Extrusion machines.-An extrusion press for cordite &c. comprises a main inverted hydraulic cylinder 15, Fig. 2, the ram of which carries a plunger 26 adapted to press cordite from a cylinder 11 through a die 56, pressure liquid being forced into the cylinder 15 by a ram 24 working in a cylinder 18 of smaller diameter than the cylinder 15. The ram 24 is screwed at its lower end, so that it may be reciprocated from a shaft capable of being driven in opposite directions through a worm, worm-wheel and nut. The cylinders 11, 15, 18 are carried by cross-pieces secured to pillars 4. The cordite &c. is placed on the die 56 which is raised by means of a third hydraulic cylinder 72, until interrupted screw threads on the die-holder 57 engage similar threads at the lower end of the cylinder 11. The die-holder is then rotated to lock it in position by means of rack bars engaging a mutilated pinion on the holder. The driving shaft is then rotated to raise the ram 24, thus causing the plunger 26 to be depressed and the cordite to be extruded on to a conveyer 66. The ram 24 rises until a rod 137, Fig. 14, has been lifted by a pin 144 and arm 142 to cause a collar 166 to lift a lever 159 and so cause a belt-shifter 193 to move a belt from a fast pulley 191 to a loose pulley 190. The die is then released from the cylinder 11 and lowered. Should it then be desired to inspect the lower end of the plunger 26, the rod 137 is partially rotated, so that the arm 142 is moved out of the path of the pin 144 and the driving shaft is again rotated, being stopped when the pin 144 contacts with an arm 141 on the rod 137. The ram 24 is moved downwardly by rotating the driving shaft by a cross belt on a fast pulley 189, the downward movement continuing until a pin 145 operates a lever 147 to cause a belt-shifter 192 to move the belt on to a loose pulley 188. The plunger 26 and its ram are returned to their upper positions by counterweights; should the plunger 26 have seized, it may be raised by substituting a cylindrical steel bar for the die. The rod 137 is capable of being lifted automatically to stop the driving shaft on the occurrence of excessive pressure in the cylinder 15, by means of a plunger positioned under the lower end of the rod and acted on by the pressure in the cylinder.
Patent GB-651054-A (GB)
Title: Improvements in or relating to universal joints
IPC: F16D3/36
Filed: 1948-09-02
Abstract: 651,054. Universal joints. KALSTROM, K. E. N. Sept. 2, 1948, No. 23193. [Class 80 (ii) ] A close-fit intermediate spherical shell 6, between ball-and-socket shaft members 3, 5, is in driving connection therewith by single ball-pivots 8 lying on diameters respectively at right-angles, the shell 6 and socket 5 being split on axial planes including these diameters.
Patent GB-824445-A (GB)
Title: Carriage-like rack for use in the manufacture of shoes
Inventor: AUER EDWIN
IPC: A43D117/00
Filed: 1957-07-23
Abstract: 824,445. Shoe racks. KOPP AKTIENGESELLSCHAFT ELKA-SCHUHFABRIK, L. July 23, 1957, No. 23288/57. Class 52(3) A shoe rack consists of units 1 mounted one above the other by means of spring catches 4, 4a and supported on wheels, lasts and shoe holders being removably and unrotatably supported on pegs 8 on a transverse member 7 of each unit. A shoe holder comprises a cranked loop of wire 9 mounted on a collar 13 at an angle as shown. A hook 12 on the peg 8 interposes between the sides of the loop and prevents rotational movement of the shoe holder. An ordinary last is provided with bores to receive the peg 8 and hook 12. For boots the peg 8 is provided with a removable extension which also has a hook.
Patent GB-404755-A (GB)
Title: Improvements in or relating to process and means for treating soil and other materials used more particularly in raising and cultivating plants
IPC: A01G11/00
Filed: 1932-08-20
Abstract: 404,755. Treating soil with electricity; manures. GROEN, J. VAN, 329, Meerssenerweg, Maastricht, Holland. Aug. 20, 1932, No. 23415. Convention date, Aug. 20, 1931. [Classes 6 (i), 6 (ii), and 111.] Mould, manure, sand, peat-dust, &c. for growing plants and for other purposes are heated by passing through them, between the boundaries of suitable masses, an alternating or direct electrical current, the current density being such, and the treatment of such duration, that the temperature is raised up to about 100‹ C, or above. By this process the soil or other material is sterilized, electrolytes in it are decomposed, and the hydrogen ion concentration may be controlled. The soil is made loose and porous by the water vapour developed and the gases evolved. Electrolytes may be mixed with the soil to alter its resistance, and materials may be added which are converted by the electric current into substances favourable to plant growth, or having a sterilizing action. Albumen may be decomposed. Chlorine may be liberated from the chloride in potassium fertilizers, and " Surrol " (K2CS3) may be decomposed into potassium carbonate, carbon disulphide, and sulphuretted hydrogen. Apparatus for carrying out the process consists of a tank or box 1 of wood or other material of low conductivity, with a cover 4 and with metallic plates 2 fixed against two opposite walls and connected to a plug contact 3. The plates may'be perforated. The mass of soil between the plates should be of uniform section. The tank may be entirely surrounded by, and insulated from, an earthed metallic container 6 having a metallic lid which may only be opened when the current is cut off. If the tank is gastight the temperature may be raised above 100‹ C. under super-atmospheric pressure. After a temperature of 100‹ C. has been reached the current will automatically be reduced after a time, owing to the drying of the soil near the electrodes. It may be reduced to a very small value by regulating the current density near the electrodes. The container is preferably of such dimensions and the electrodes are of such a size and so spaced that, at the potential for which the apparatus has been designed, with a soil having normal water content a temperature of 100‹ C. is reached in less than eight hours. The current may be obtained direct from the ordinary distribution system, or through a transformer. The soil in the tank may be divided by partitions, the parts being connected up in parallel or series. A self-induction coil may be connected in series with the tank. Single-phase or poly-phase alternating current may be employed. Spades, flower-pots, &c. may be placed in the tank for sterilization by the vapour developed. The Specification as open to inspection under Sect. 91 states that the electric current may be induced through the mould &c. This subjectmatter does not appear in the Specification as accepted.
Patent GB-155561-A (GB)
Title: Improvements in and relating to parachutes
IPC: B64D17/78
Filed: 1920-08-10
Abstract: 155,561. Kaminski, A. Dec. 17, 1919. [Convention date]. Aerial machines without aerostats; propelling. - A parachute device comprises a screw-propeller with foldable blades which are opened when in use and driven as required by a compressed air or similar motor. Fig. 1 shows the device with the propeller blades folded. A plate 5, adapted to be strapped to a person's back, is connected by a chain 8 to a member 7 which has a rim for holding the ends of the propeller blades 20 in their folded position. The blades are hinged to a plate 19 secured to a tubular shaft 13 which is geared, as shown, to the spindles of two vane wheels contained in casings 18. The vane wheels are driven when required by compressed air &c. from a reservoir 30 through inclined passages 31 provided with valves 32 controlled by a cord 33 passing through the tube 13. The member 7 is secured to a telescoping part 9 of the central tubular stem so as to be moved downwardly by the load to release the blades 20, which are drawn up by springs 25, 23 until the blades abut against the edges of the plate 19, as shown in Fig. 5. The springs 23 are secured to a plate 22 fixed on the tube 13.
Patent GB-841937-A (GB)
Title: Gas density banlance employing differential flow measurement
IPC: G01N30/66
Filed: 1958-07-22
Abstract: <PICT:0841937/III/1> In apparatus for testing gases in which the cooling effect of gases on electrical insistance is measured, a reference gas flows through two conduits 12, 13 containing detectors 14, 15, across which a vertical conduit 16 is connected down stream from the detectors, and provided with a central inlet 17 for the sample gas, the respective outlets being joined to an outlet 20 which is restricted.  The reference gas admitted through an inlet 10 is split into two streams flowing in tubes 12, 13, and the sample gas if heavier than the reference gas, tends to flow into the lower tube which thereby slows the flow of that reference gas in the conduit 15, creating an imbalance and the temperature of the resistance rises. The resistances may be replaced by transistors. These are connected in a wheat-stone bridge circuit which may also include a direct recorder.  The apparatus is mounted in a chamber maintained at constant temperature, and may be used for testing sample gases from gas chromatography processes.
Patent GB-647261-A (GB)
Title: Improvements in the manufacture of artificial teeth from plastics such as methyl methacrylate
IPC: A61K6/083
Filed: 1947-08-26
Abstract: 647,261. Moulding artificial teeth. PILE, R. J. Aug. 26, 1947, No. 23539. [Class 87 (ii)] Teeth are formed from material such as methyl methacrylate by forming a plaster mould 4 having tooth cavities 7 from a flexible pattern, see Fig. 2 (not shown), pouring into the cavities first material to form the tooth facing and then dentine-forming material, and then moulding the material under heat and pressure. The mould is removed by breaking it. Grooves may be formed in the facing- material, before adding the dentine-forming material, to simulate natural faults. A pressure plate, used to apply the pressure to the material in the cavities, may have pins to form a recess in the back of each tooth.
Patent GB-180950-A (GB)
Title: An improved hand hammer
IPC: B25D1/00
Filed: 1921-09-05
Abstract: 180,950. Debenham, J. S. Sept. 5, 1921. Hollow handles.-The ordinary wood handle of a hammer is formed with a recess, closed by a cover, for holding nails and similar loose articles. Fig. 1 shows the recess B in the handle A open at the side and closed bv a slide C, while Fig. 2 shows the recess open at the end and closed by a pivoted cover E.
Patent GB-808448-A (GB)
Title: Improvements in or relating to reducing hum in valve circuits
Inventor: BOWERS DOUGLAS FREDERICK
IPC: H04B15/00
Filed: 1956-07-31
Abstract: 808,448. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. April 2, 1957 [July 31, 1956], No. 23591/56. Class 40 (6). In a circuit in which a valve is heated with A.C. from winding 7 of a transformer, hum is balanced out by applying to the screen-grid a balancing A.C. potential, which is derived from tertiary winding 8 via an adjustable phase-shifting network comprising potentiometer 10 and condenser 9 in series. The screen-grid is fed with D.C. via resistor 12 and decoupling condenser 14, which is of low impedance at the hum frequency. The condenser 9 may alternatively be made variable for adjusting the phase.
Patent GB-1002143-A (GB)
Title: Electrical capacitors
IPC: H01G13/02
Filed: 1961-06-29
Abstract: 1,002,143. Capacitors. A. H. HUNT (CAPACITORS) Ltd. June 21, 1962 [June 29, 1961], No. 23612/61. Heading H1M. In a method of making a wound capacitor composite strips 11, 11a comprising flexible material, e.g. polyethylene terephthalate, attached to dielectric material, e.g. cellulose acetate polyethylene carbonate, thermo-plastic, thermo-setting plastic or polyester material, 13, 13a, respectively, carrying a layer of metal, e.g. aluminium, cadmium, magnesium or zinc, 14, or 14a, are fed over electrically-conducting rollers 17, 17a to pass around an electrically non-conducting roller 18 and beneath electrically-conducting rollers 19, 19a whilst material 12, 12a is peeled away from material 13, 13a by rollers 25, 29, rollers 17, 17a, 19, 19a being subject to positive and negative potentials, as shown, to volatilize metal lodged in flaws within material 13, 13a before it is wound on a spindle 21 to form a capacitor. A roller 22 brings layers 14, 14a to face spindle 21 and supports material 13, 13a during its passage from roller 18. Rollers 19, 19a may be omitted (Fig. 4, not shown) and rollers 17, 17a subject to negative and positive potentials, respectively, to volatilize metal lodged in flaws within material 13, 13a. Layers 14, 14a may be deposited on strips of material 13, 13a by evaporation in vacuo, and may form longitudinal bands on dielectric material which is subsequently slit along its length between said bands to produce strips having one unmetallized margin, the thickness of the layers of metal being 1 to 4 microns.
Patent GB-1063335-A (GB)
Title: Screens, strainers and the like and the manufacture thereof
IPC: B29C67/00
Filed: 1964-06-09
Abstract: 1,063,335. Making filters for liquids. B. R. THOMPSON. June 9, 1964 [June 11, 1963], No. 23765/64. Heading B1D. [Also in Division B5] A filter screen is made by forming spaced hollow projections 18 (Fig. 4) in a plastics member 16, moulding an outer reinforcing plastics layer 10 about the member 16 such that the projections are completely embedded therein, and finally reducing the thickness of the screen so that the closed outer ends of the projections are removed and holes 12 extend through the screen (Fig. 3). The projections may be formed by drawing spaced portions of a heat softened thermoplastics sheet 20 into spaced openings in one forming member 22 by means of corresponding projections 28 on a coacting forming member 26 (Fig. 6). Alternatively a sheet 20 is passed between upper and lower rollers 34 and 35 and the projections are formed by radial teeth 34c (Fig. 11). Fig. 12 shows blind holes 36 formed in a moulded plastics bed 38 by a member 40. The reinforcing layer is of thermosetting resin such as epoxy resin. Reinforcing fibreglass asbestos, or metal wire may be embedded in the reinforcing layer. The screen may be formed into a tube.
Patent GB-1047706-A (GB)
Title: Improvements in or relating to electrical devices wherein an electric arc may be produced in operation
Inventor: HOLLIDAY JOHN HUBERT
IPC: H01J17/26
Filed: 1963-06-14
Abstract: 1,047,706. Cold-cathode tubes. GENERAL ELECTRIC CO. Ltd. June 5, 1964 [June 14, 1963], No. 23810/63. Heading H1D. [Also in Division H2] In a discharge tube for use as a switch, at least the cathode of the pair of electrodes between which the controlled current passes includes absorbed hydrogen which, upon initiation of a discharge, is liberated and ionised to provide a high conductance arc, the rapid recombination of the hydrogen ions upon extinction of the arc preventing subsequent undesired reformation of the arc. High-voltage pulses are produced by discharging a bank of capacitors across the electrodes of which one (3, Fig. 1, not shown) may be movable, to permit initiation of the discharge by breaking its contact with the other electrode. Alternatively (Fig. 2, not shown), a control grid 19 and trigger electrode 21 may be provided, a pulse applied between the trigger and the cathode 20 liberating hydrogen ions from the latter, whereby a pulse applied to the grid produces a highcurrent arc between the cathode and the anode 18. The metal and glass envelope is filled with hydrogen, maintained at 100 millitorrs by an electrically heatable source 35, and the electrodes, of titanium, zirconium, or titanium/zirconium alloy, are saturated with hydrogen prior to assembly by heating to 800 C. and cooling in hydrogen. The grid, anode, and cathode are provided with coolant tubes, and with baffle plates 28, 24, and 32 respectively, and such liberated hydrogen as is not reabsorbed by the electrodes is removed by the electrically heated getter 12.
Patent GB-319606-A (GB)
Title: Improvements in rotary compressors, motors, pumps and the like
IPC: F03C1/36
Filed: 1928-06-15
Abstract: 319,606. Holman Bros., Ltd., Shaw, H. S. Hele-, Beacham, T. E., and Mills, E. C. June 15, 1928. Divided on 319,386. Drawings to Specification. Revolving radial-cylinder engines, reciprocating-piston type; driving-gear.-In a rotary reversible motor, compressor pump, &c. operated by compressed fluid as described in Specification 319,386, the cylinder carrier is supported by the boss passing through the annular ring and received in a ball-bearing in the casing and the valve is recessed in a ball-bearing in the carrier. Specifications 240,773 and 246,933, [both in Class 8 (i), Air and gases, Compressing &c.], are referred to.
Patent GB-688227-A (GB)
Title: A cutting and loading machine for the working of coal seams of minor thickness
IPC: E21C27/02
Filed: 1950-09-29
Abstract: 688,227. Mining-machines. CZECHOSLOVAK HEAVY ENGINEERING WORKS, NATIONAL CORPORATION, and SKLENAR, A. Sept. 29, 1950 [Oct. 24, 1949], No. 23859/50. A mining-machine provided with two cutter drums 8, 9 projecting at different heights laterally is characterized in that the shaft of one drum 8 is mounted in the head 7 of the machine so that it mines the lower part of the seam whilst the shaft of the other drum 9, which works the upper part of the seam, is supported in casings 11 and 12 free to be swung around the shaft of the first-mentioned drum by a hydraulic piston-cylinder unit 13 which urges the ,casings against the roof at a predetermined pressure so that any variation of this roof level varies the pressure in the cylinder to cause automatic adjustment thereof until the predetermined pressure is regained so that the upper drum 9 follows accurately any variations in the roof level of the seam. The drums rotate in opposite directions, the upper drum rotating in such a direction that its cutters, when engaging the seam, move in the direction of travel of the machine. Each drum is equipped with rows of cutters 15 inserted into bores, the longitudinal axis of each lying in a plane perpendicular to the drum axis and angularly displaced with respect to the radius in the said plane so that the free end of the cutter is inclined to the direction of rotation. Each cutter is secured in the borehole by a screw 16 the longitudinal axis of which forms an acute angle with the longitudinal axis of the cutter. A cutter disc is secured on the free end of each cylinder.
Patent GB-337787-A (GB)
Title: Improvements in and relating to liquid fuel burners
IPC: F23D11/10
Filed: 1929-08-06
Abstract: 337,787. Pyankow, S. M. Aug. 6, 1929. Spray burners. - In a liquid fuel burner the fuel traverses helical passages in a hollow adjustable member through which passes steam, air or other atomizing fluid. Fig. 1 shows a burner designed to give a circular flame, said burner comprising a casing 1 with a flange 2, and a hollow member 3 longitudinally adjustable in the casing 1 by means of a handwheel 5. Steam or air is admitted at an inlet 7 and flows through a central opening in the member 3 around the outside of which are helical grooves 11 for the passage of fuel, which is supplied under pressure. An additional connection is provided for blowing through and clearing the fuel passages. In a modification the burner is adapted to give a flat flame. In a further modification the burner is adapted to be supplied with preheated gases such as air from chimneys, heating chambers, cupolas or the like as the atomizing medium.
Patent GB-921675-A (GB)
Title: Improvements in portable cabins
IPC: E04H15/06
Filed: 1961-07-03
Abstract: 921,675. Portable cabins. C. C. BARKER. July 3, 1961, No. 23977/61. Class 20 (1). A portable cabin comprises a rigid roof shel<SP>1</SP> 1 of aluminium, fibreglass, plastic, or sheet steel, and walls, of flexible material, which roll up for stowage under the roof, cross-members 18 being provided which bolt both to the roof 1 and to a car roof rack, whereby the cabin is secured in position upon a car roof. Corner supports 6 are engaged in sockets in the roof 1. The front wall 13 may be raised and supported by members 18 which during storage assist in supporting the cabin on the car roof-rack.
Patent GB-816238-A (GB)
Title: Improvements in textile articles
Inventor: MANN RALPH JAMES
IPC: A41B3/00
Filed: 1956-08-03
Abstract: A cellulose triacetate fabric is treated with a water-soluble resin precondensate and is heated to insolubilize the resin.  The precondensate may be obtained from 1 mol. of melamine and 2 to 6 mols. of formaldehyde or from 1 mol. of urea and 1.5 to 2.5 mols. of formaldehyde, which products may be formed in the presence of methyl, ethyl or propyl alcohol, or from formaldehyde and acetone. The resin may be applied in aqueous solution, which may contain tartaric acid, ammonium chloride or diammonium phosphate.  The fabric may be pretreated with a swelling agent, e.g. acetic acid, acetone, ethyl lactate, acetone alcohol, or water-miscible carboxylic esters, ethers or ether-carboxylic esters of ethylene glycol, diethylene glycol or glycerol wherein the ethers are C1 to C4 alkyl ethers and the carboxylic acids are acetic or formic acid; specified compounds include diacetin, di-ethylene glycol mono- and di-acetate, glycol monomethyl ether, glycol monoethyl ether acetate and glycol monobutyl ether acetate. The swelling agent may be removed by washing with water and the water content of the fabric may be reduced prior to the application of the resin.  The fabric may contain cotton or regenerated cellulose fibres either as a mixed-yarn fabric or as a fabric woven from yarns spun from a mixture of fibres. Specification 758,442, [Group IV (a)], is referred to.
Patent GB-1061154-A (GB)
Title: Grain drill
IPC: A01C7/08
Filed: 1964-06-10
Abstract: 1,061,154. Seed and like material distributers. MASSEY-FERGUSON Inc. June 10, 1964 [July 2, 1963], No. 24003/64. Heading A1D. A machine for distributing materials e.g. seed and fertilizer, into two parallel furrows comprises two hopper compartments 20, 21 having metering devices 23, 24 for feeding the materials via tubes 29 to outlet nozzles 36, 37, a double disc furrow-opener 31 for forming the furrows, and laterally spaced plates 40a, 40b which direct the materials into the furrows and are pivotally mounted at their forward ends on a support member 30. Each plate is provided with a cut-away portion such that upward movement of the plates relative to the nozzles will not obscure their outlets. The discs converge in the forward direction of the machine. A subframe 15 carrying the member 30 may be connected via a link 18 to a rockable lever 17 whereby the discs may be raised from or lowered into the ground. The member 30 on which the discs are mounted and the nozzles may be formed as an integral casting.
Patent GB-1402678-A (GB)
Title: Connecting plugs for optical glass fibres
IPC: G02B6/38
Filed: 1973-05-21
Abstract: 1402678 Light guides SIEMENS AG 21 May 1973 [10 July 1972] 24034/73 Heading G2J A plug for connecting two optical glass fibres 1, 2 comprises a glass capillary tube 3 of the shape shown, the inner diameter at its central part being only slightly greater than that of the fibres. A liquid 4 having a refractive index equal to that of the core of the fibres may fill the tube 3, the refractive index of which should equal that of the cladding of the fibres. The liquid may contain an adhesive if a permanent connection is required. A plurality of connectors may be arranged in parallel on a strip.