baber/WOPTO huggingface dataset:
Patent GB-535753-A (GB)
Title: Improvements in audiphones
IPC: H04R25/00
Filed: 1940-05-21
Abstract: 535,753. Hearing aids for the deaf. ELECTRICAL RESEARCH PRODUCTS, Inc. May 21, 1940, No. 9004. Convention date, June 20, 1939. [Class 40 (iv)] In a portable set for deaf persons, the pick-up microphone 12, the input and output units 14, 15 of a microphone amplifier, the receiver 16 and a single battery are connected in a series circuit, a large condenser being connected between the common point of the amplifier units and a point between the instruments 12, 16, or two large condensers 21, 22 being connected as shown to the common point and to opposite sides of a choke 23 in the series circuit to prevent retroaction. Volume is controlled by a rheostat 11. In a modification, Fig. 3 (not shown), flow of direct, current through the input unit of the amplifier is prevented by means of a series condenser and a byepassing choke.
Patent GB-170819-A (GB)
Title: Improvements relating to wheels for vehicles
IPC: B60B19/06
Filed: 1921-03-23
Abstract: 170,819. AndrÚs, F. B. de. Oct. 29, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Air tubes and chambers. - To increase the cushioning effect, and for cooling-purposes one or more air-tight metal chambers C are mounted on the wheel in communication with the air tube of a. pneumatic tyre.
Patent GB-293369-A (GB)
Title: Improvements in machines for distributing manure or the like
IPC: A01C15/16
Filed: 1927-04-02
Abstract: 293,369. Bamford, J., and Bamford, C., J. April 2; 1927. Manure &c. distributers; multiple-tool implements. - In distributers comprising a box or hopper having a discharge opening in its lower part in which works distributing-apparatus comprising a toothed reciprocating plate, means are provided for controlling the passage of material on to or through the reciprocating plate so that discharge only takes place at points spaced apart across the machine, bars also being provided for carrying funnels for guiding the material and tines &c. for operating on the land. The reciprocating toothed plate 34 may work in contact with a delivery roller 16. A rotary agitator shaft 20 may be provided inside the hopper 3. The roller 16 is driven from both travelling wheels 1 by pawls and ratchet wheels and spur gearing, spur wheels on the roller shaft 15 being provided with a second set of teeth for driivng the agitator shaft 20. The plate 34 is connected to a rod 30 reciprocated by means of a crank shaft 27 driven from the shaft 15 by bevel gearing. The flow of material is controlled by sliding shutters 36 operated by means of racks and pinions. Interceptor plates 39 are provided between the shutter 36 and the side of the hopper for stopping the flow except at certain points. Flow may take place between the plates 39 or through gaps in their edges. The ends of the teeth on the reciprocating plates 34 may be of dovetail form. Parts. of the plate may be without teeth to stop the flow at those parts. Funnels 47 may be suspended from hangers 46 adjustably clamped on a transverse bar 45. The funnels may swing to and frc in the direction of travel, the movement being limsted oy plates 49 carried by clamps 51. A second bar 52 may carry tines 53 or other tools for operating on the land in advance of the stream of manure. According to one Provisional Specification, the interceptor plate may be adjustable and of L.shape, or mav extend across the lower part of the hopper, or may be secured in the reciprocating plate. Specification 7121/13 is referred to therein. According to the other Provisional Specification, the tools working in advance of the manure feed may consist of a horizontal hoe and a vertical tine for each row of crop.
Patent GB-669759-A (GB)
Title: Improvements in or relating to the production of power
IPC: F02C7/22
Filed: 1949-04-04
Abstract: 669,759. Gas turbine plant. STEINSCHLAEGER, M. June 26, 1950. [April 4, 1949] No. 9140/49. Class 110(iii). The discharge of the compressor 2 of a gas turbine plant passes through a first heat exchanger 5 and is then divided into two streams. One stream is fed to the gas producer 7, the gaseous products of which are cooled in a second heat exchanger 10 and then passed through a cooling and purifying system 11 and the second heat exchanger 10 to the combustion chamber 14 in which they are burnt in air supplied by the second stream. The combustion products from the chamber 14 are also divided into two streams. The first stream passes through third and fourth heat exchangers 16, 18, to a first turbine 20, the exhaust gases of which pass through a fifth heat exchanger 22 to a second turbine 23. The second stream is cooled in the fifth heat exchanger 22 and then passed into the first turbine 20 together with the first stream. A further stream of air from the compressor is heated in the fourth heat exchanger 18, expanded in the third turbine 29, reheated in the third heat exchanger 16 and then passed through a fourth turbine 31 before being cooled in the heat exchanger 5. Steam or carbon dioxide or both is admitted to the gas producer 7 through a conduit 8. If liquid fuels such as oils or tars or such solid fuels as pitches or powdered pitches or powdered coal are used, the gas producer may consist of a burner generating hot gases the sensible heat of which is used to crack or gasify the fuels. The coolers may be of the direct or indirect type and the precipitators may be of the electrostatic or cyclone type.
Patent GB-406138-A (GB)
Title: Improvements in and relating to cockpit wind screens particularly for aircraft
IPC: B64C1/14
Filed: 1933-03-27
Abstract: 406,138. Aircraft &c. wind-defecting screens. PETTERS, Ltd., and DAVENPORT, A., Westland Works, Yeovil, Somerset. March 27, 1933, No. 9152. [Class 4.] In a high-speed vehicle or craft such as aircraft having two cockpits disposed in line one behind the other, a readilydetachable and laterallyadjustable curved windscreen d is provided in front of the rear cockpit. Two brackets f are secured to the screen and to a stiffening member e reinforcing the lower end of the screen, claws g on the lower front ends of the brackets engaging the projecting portion h of a ring at the front edge of the cockpit while the lower ends of spring-pulled levers k engage the vertical portion j of the ring. The brackets are shaped to form handles m enabling the screen to be moved by applying thumb. pressure to the ends n of the levers k.
Patent GB-1031270-A (GB)
Title: New anthraquinone dyes and their production
Inventor: WEIDINGER HANS
IPC: C09B1/46
Filed: 1965-03-04
Abstract: The invention comprises compounds of the formula <FORM:1031270/C4-C5/1> wherein R1 is alkyl, aryl, alkoxyl or amino bearing one or two hydroxyalkyl or alkoxy-alkyl radicals, R2 and R3 are H, alkyl, alkoxy-alkyl hydroxyalkyl or form a heterocyclic ring with N, ring A may have halogen, alkyl, alkoxyl, hydroxyl, carbomethoxy, alkylsul-phone or substituted sulphonamido substituents. The compounds are prepared by reacting an azine chloride of the formula <FORM:1031270/C4-C5/2> with an amine of the formula HN(R2)R3.  The compounds may be used to dye polyester or polyamide materials blue.
Patent GB-251091-A (GB)
Title: Improvements in or relating to blowpipe apparatus
IPC: F23D14/54
Filed: 1925-04-07
Abstract: 251,091. Carbic, Ltd., and King, O. C. F. April 7, 1925. Blowpipe burners. - An oxyacetylene or other blowpipe burner is provided in the base or stock with a mixing or expansion chamber C which is connected by a number of tubes D to a burnerhead F formed with a straight or curved narrow slot or flame orifice G. In the form shown in Figs. 2 and 4, the tubes D enter a number of holes c<2> arranged in a semi-circle in a diaphragm C<1> at the front of the chamber C. A plate H formed with a semicircular or segmental wing may be rotated in front of the holes c<2> so as to cut off some of the tubes D to vary the width of the flame. The stock A is clamped to the diaphragm C by means of a clamping ring M and contains an injector nozzle B supplying oxygen under pressure and acetylene. The burner-head F is attached to a stop d<1> in which the tubes D terminate, and, in order to reduce the conduction of heat to the tubes, the head is formed with a narrow neck j<2> and with heat-radiating fins f'. The fins may also serve to guide or support the burner-head relatively to the work. The gaseous mixture passes from the tubes D through channels f<4> to a tubular expansion and mixing chamber E formed immediately behind and parallel to the flame orifices. In order to prevent the flame from spreading along the orifice G when some of the tubes only are supported with gas, a checking device may be fitted in the mixing chamber E. This checking device may comprise a ribbed rod, each annular channel between the ribs corresponding to one passage f<4>. A ventilating cover J may be provided around the tubes. This cover is preferably made in two sections which when clamped in position by a nut K place the tubes D in tension so as to maintain the tool rigid. In the form shown in Figs. 5 and 7, the stock is formed with an elongated tapered mixing chamber C from which lead tubes D to the burner-head F. The burner-head F is secured to the base by a tension rod P. The tubes D are of smaller diameter at their inlet ends so as to throttle the gas momentarily. The burnerhead is provided with wedge-shaped partitions N formed with apertures n' and having knife edges approaching closely the lips of the orifice G. Guide rollers may be provided on the burnerhead so as to support the tool during its movement on the work. The Provisional Specification states that a twisted sheet-metal strip may be inserted in each tubular passage to give a spiral movement to the gases.
Patent GB-126398-A (GB)
Title: Improvements in Machine Guns.
Inventor: LEWIS THEODORE HARDING
IPC: F41A9/35
Filed: 1917-06-28
Abstract: 126,398. Lewis, T. H., and Leonard, H. M. June 28, 1917. Machine guns; cartridge magazines. - Relates to machine guns in which the magazine is rotated step by step to deliver cartridges one by one, means being provided to bring the cartridges into alinement with the barrel and to ram it therein by a reciprocating breech block. According to the invention, the magazine has a plurality of chambers each containing a plurality of cartridges end on. The invention is shown applied to guns having any number of sets of four barrels 40, Fig. 5, with breech blocks 23, Figs. 1 and 9, which slide along a fixed cylinder 4 and are worked by a rotating drum 13 situated within the cylinder, the drums being rotated through bevel gears 18, 20 by a main transverse shaft 21 actuated by mechanical power or by a handle 96. The four barrels are enclosed in a cylindrical casing 45 containing air or water, and the casing is detachably secured on a seat 53, 87 in front of the fixed cylinder 4 by means of bent lugs 50, 51, Fig. 6, on the cylinder fitting into bent notches 48, 49 in an arm 47 extending rearwards from the barrel casing 45, a lever 52 being provided to lock and unlock this attachment. Each breech block 23 is bevelled at its front end 30, and carries a cartridge-extractor 95, and a radial pin and roller, by means of .which it is reciprocated by a groove 14 in the rotating drum 13. A locking lug 15 on this drum fits into a notch 31 in the breech block when the breech is closed. A pivoted spring hammer 33 is provided for each barrel. The hammer is cocked by the recoil of the breech block and is released by a notch 37 in a collar 36 on the spindle 17 of the rotating drum 4, when this notch is again brought in line with the hammer by the rotation of the drum. A magazine is provided for each barrel. The magazine has an outer tube 64 which is rotated step by step in the gun mounting by means of ratchet wheel 68, pawl 69, Fig. 2, link 72, and lever 71 rocked periodically by crank 70 on the drum spindle 17. The rear end of the tube 64 is open and admits another tube 77 containing a plurality of smaller tubes 78, each loaded with a plurality of cartridges end on against a spring 85. The front end of the tubes 64 and 77 are closed bv disks which are perforated with holes 73 corresponding to the smaller tubes 78, in order to deliver, by the step by step rotation of the magazine, one cartridge at a time from each of the smaller tubes in succession. The cartridge passes through a notch in a fixed disk 99 into a star wheel 88, and is carried by the star wheel along a curved guide 94 into line with the gun barrel, into which it is rammed by the forward stroke of the breech block 23. The perforated disk 79, which closes the front end of the inner tube 77 of the magazine, can be rotated to shut off the cartridge-containing tubes 78, this rotation being performed by means of a central longitudinal spindle 80 and external handle 82 provided with a spring catch 83 to hold the parts in the open and closed positions.
Patent GB-385930-A (GB)
Title: Improvements relating to manifolding
IPC: B41L11/00
Filed: 1931-03-27
Abstract: <PICT:0385930/III/1> In apparatus for copying book-keeping entries &c. from an original provided on the reverse side with a mirror copy, on to cards &c. moistened with a readily volatile liquid adapted to dissolve the ink, the original is wrapped reverse side out around a roller with the lines of characters perpendicular thereto, and each card is p  moistened at one operation along one or more strips of line breadth according to the number of lines to be copied.  As shown, the original is wrapped around a roller 1, and the card is placed in a gripper 9 on a roller 4 carried by an arm 8 mounted on a shaft 3.  The roller 4 is of the same diameter as the roller 1 and is preferably of line breadth; it may or may not act as an impression roller.  A series of additional rollers 4<1>, 4<11>, separately movable into operative positions, is provided adjacent the roller 4, and a corresponding number of moistening devices 6 also independently movable into operative positions, is mounted on a shaft 5.  The shafts 3, 5 are screw-threaded and are intermittently rotated to displace the rollers and moistening devices into successive lateral positions. There may be as many impression and moistening-devices as there are lines of characters in the original so that a copy of the whole of the original may be printed at one operation.  In a modification, a single roller 4 of line width and a single moistening device are mounted on parallel screw-threaded shafts rotated intermittently to print from each line in succession.
Patent GB-721382-A (GB)
Title: Improvements in or relating to water heaters
Inventor: CHAPMAN FREDERICK WALTER
IPC: F24H1/10
Filed: 1952-04-15
Abstract: 721,382. Heating water by direct contact with combustion gases. MAIN WATER HEATERS, Ltd. May 29, 1953 [April 15, 1952], No. 9412/52. Class 64 (1). A water heater in which jets of water are heated by direct contact with combustion gases from a burner 10 comprises a cold water supply pipe 40 arranged in a casing 19 above three superimposed tray-like baffles 42, 45, 50. The top and bottom baffles 42, 50 have gaps around their outer edges, and the middle baffle 45 has a central upwardly flanged opening 46, for the passage of the combustion gases. Water from the pipe 40 flows in jets downwardly into the top baffle 42, and through holes or nozzles in the latter part into the middle baffle 45 and partly through its central hole 46 on to the bottom baffle 50..The water overflows from the bottom baffle 50 and is collected by a trough 20 at the bottom of the casing. The outer flange 48 of the middle baffle 45 is spaced from, and has holes 49 for directing water against, casing 19. The bottom baffle 50 has spouts 51 also directing water against the casing 19. The Provisional Specification describes a water heater comprising a vertical water supply pipe surrounded by three coaxial cylindrical shells. The innermost shell rests on a transverse baffle carried by the water pipe. Combustion gases from a burner surrounding the bottom of the water pipe flow into the space inside the intermediate shell below the baffle, and then partly through the annular space between the inner and intermediate shells and partly through apertures in the intermediate shell to the.annular space between the outer and intermediate baffles. Water is sprayed through rings of holes in the water pipe against the shells and against a ring above the top of the inner shell, and .flows down the shells into an annular trough at the bottom of the outer shell.
Patent GB-1139377-A (GB)
Title: A thermo-luminescence type radiation dosimeter
Inventor: YAMASHITA TADSOKI
IPC: G01T1/11
Filed: 1967-02-28
Abstract: 1,139,377. Calcium sulphate. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 28 Feb., 1967, No. 9424/67. Heading C1A. [Also in Divisions C3 and C4] Calcium sulphate, containing as impurity ions manganese and at least one of Pb, Ni, Co, Zn, Cd, Li, Be, Na, Th, Zr, Re and W, is used as a part of a thermo-luminescent radiation dosimeter, calcium sulphate comprising the major proportion. A particular example comprises calcium sulphate containing 0À05 to 0À5% by molecular weight of Pb and 1 to 5% by molecule weight of Mn as the impurity ions. The part can be made by heating a concentrated sulphuric acid solution which contains calcium sulphate, manganese ions and at least one ion selected from the above mentioned group, crystallizing the calcium sulphate containing the impurity ions by evaporating the sulphuric acid solution. The crystals or powdered calcium sulphate containing the said impurities may be dispersed in a transparent resin preferably consisting of fluoro-ethylene polymers. The calcium sulphate part described above has a high sensitivity to ionizing radiation but is not sensitive to neutron dosage. A thermo-luminescent radiation dosimeter, which comprises a combination of the said calcium sulphate part 11 and a part which responds to neutron dosage 12 preferably lithium or boron compounds, can be adapted for measuring both ionizing radiation and neutron dosage, Fig. 5a. A modification consists of a combination of at least two parts of the said calcium sulphate system, the additional ones being used for supplementary measurements. The most reliable system consists of a calcium sulphate part of high sensitivity 17, a supplementary part of calcium sulphate 18, and a part for measuring neutron dosage 19 such as LiF, Fig. 5c.
Patent GB-548126-A (GB)
Title: Electrical recording stylus and method of making the same
IPC: H04L21/00
Filed: 1941-07-26
Abstract: 548,126. Making electric components. CREED & CO., Ltd. July 26, 1941, No. 9518. Convention date, Aug. 3, 1940. [Classes 83 (ii) and 83 (iv)] [Also in Group XL] Cutting by spark discharge.-A stylus for scanning a recording medium and applying thereto electric marking currents is made by producing a core 12b of relatively soft conducting material such as iron, steel, bronze and beryllium copper, and coating it with refractory conducting material such as chromium, rhodium, tungsten and molybdenum. The end of the stylus is formed with a cavity c by passing an alternating current between the end 12c and an opposed electrode. During use the cavity tends to be preserved and if alternating current be used in recording the cavity need not be preformed. The outer layer may first be formed and then filled with the core material or the core may be first formed and the outer layer applied by means such as electrodeposition. In a preferred form the core is of steel piano wire and the outer layer is of chromium. The core diameter may be from 8 to 10 mils and the outer layer may be 1 mil thick, and the stylus is particularly for use in a telegraph system.
Patent GB-1104969-A (GB)
Title: 3-aza-a-homo-steroids and their preparation
IPC: C07J41/00
Filed: 1965-11-19
Abstract: The invention comprises compounds of formula <FORM:1104969/C2/1> wherein R is hydrogen, methyl, ethyl, chlorine, bromine or fluorine, R1 is hydrogen or a C2- 12 alkanoyl group and R11 is hydrogen or methyl, and their preparation by reaction of a steroid of formula <FORM:1104969/C2/2> with an acidic reagent.  The compounds of the invention have progestational activity.
Patent GB-216280-A (GB)
Title: Improvements in or relating to shop blinds and the like
IPC: E04F10/06
Filed: 1923-04-09
Abstract: 216,280. Page, A. C. April 9, 1923. No Patent granted (Sealing fee not paid). Roller blinds, spring.-In a sun blind of the awning type the front rail is provided at each end with a flexible band &c. k secured to grooved pulleys i each of which is secured to a shaft g journaled in blocks b in the roller a, coil springs f providing a resilient connection between the shafts g and the roller upon which the blind is wound in a direction opposite to that of the flexible members k upon the pulleys. The arrangement retains the blind at any desired position.
Patent GB-287938-A (GB)
Title: Method of and apparatus for working explosion turbines by means of coal dust
IPC: F02C7/264
Filed: 1928-03-30
Abstract: 287,938. Holzwarth, H. March 30, 1927, [Convention date]. Generating combustion products under pressure.-In an explosion turbine in which coal dust is used as fuel, ignition is facilitated by injecting liquid fuel into the explosion chamber*with the coal dust. The fuel supply apparatus. for the explosion chamber v comprises a valve body a and a valve b which is opened periodically when oil under pressure is supplied through a pipe q to the back of a piston e. Air under pressure is supplied by a connection r ; coal dust is supplied from a hopper t through a connection s when the cam-operated slide valve h is opened, and igniting oil is fed through the channel n in the valve b. Discs c<1> are arranged to spread the coal dust in the air current, and the end of the oil channel n is provided with a valve d, and spraying channels d<2>. The cam m which opens the coal dust valve h may be adjusted by a governor. A modification of this valve, in which the coal dust container is isolated from the charging valve a, b, is referred to. In the arrangement shown, the dust hopper t is placed under the pressure of the charging air by a pipe connection t<1>. The oil pump o is cam operated, and an oil-actuated scavenging air valve x and an igniter y are provided.
Patent GB-566057-A (GB)
Title: Wrinkle varnish base
IPC: B05D5/06
Filed: 1942-07-10
Abstract: A wrinkle varnish base is prepared by heat reacting a drying oil, an oil-soluble resin and air, for approximately one hour at a temperature of between 375 and 400 DEG  F.  Specified drying oils are dehydrated castor oil, linseed, perilla, soya bean, tung, oiticica and fish oils, and specified oil-soluble resins are maleic acid glycerol resin, rosin-modified alkyd resins, rosin-modified phenol-formaldehyde resins, and run natural resins such as run Congo, Kauri, Batu, Zanzibar, Manila and Pontianak.  Specified optional additions to the varnish bases are toluol, xylol, naphtha, hydrogenated naphtha, mineral spirit and cobalt resinate, linoleate or naphthenate driers.