baber/WOPTO huggingface dataset:
Patent GB-512172-A (GB)
Title: Improvements in fluid pressure hammers
IPC: B21J7/24
Filed: 1938-05-03
Abstract: 512,172. Power hammers. NAZEL, B.S. :May 3, 1938, No. 13188. [Class 83 (iv)] In a pump piston power hammer the ram may be held up for manipulating the work and may be operated to strike single blows or a succession. The hammer comprises a power cylinder 2, with piston 4 driven by electric motor, ram cylinder 2 with hollow ram 3 having a cushioning chamber 25, cylindrical valves 11, 12 operated by linkage from a handle 19, spring pressed check valves 13, 14. and spring pressed suction valves 15, 16. The casing of the valve 11 has a series of ports one communicating with a chamber 24 of the power cylinder above the piston, a second with a chamber 22 above the ram, a third port leading to an atmospheric chamber 36, a fourth communicating with a chamber 33 and finally one communicating with a reservoir or pressure chamber 35. Similarly ports in the casing of the valve 12 lead respectively to a chamber 23 below the piston 4, a chamber 21 below the head of the ram 3, atmosphere through the hollow pedestal 1, a chamber 34, an auxiliary reservoir 47, and the reservoir 35. Air may be drawn from the chamber 36 into the chambers 33 and 34 through the suction valves and therefrom respectively through the check valves into reservoirs 35, 47. A bye pass connecting the upper and lower parts of the cylinder 2' through the cylinder wall, is controlled by a rotary valve operated by a starting lever 20 which is shown in Fig. 1 in the starting position with the byepass opened. The lever 19 is preferably placed in the position indicated as "suspended full blow." The piston 4 reciprocates idly until the motor and power piston have reached working speed whereupon the lever 20 is put to a vertical position to close the bye-pass. On the up stroke of the piston 4 air is compressed and passes to the reservoir 35 to build up pressure and air is sucked into the chamber 23. The latter air is on the down stroke compressed and passes to the auxiliary reservoir 47 and into the chamber 21 to elevate the ram. The movement of the lever 19 to the position marked as "full blow" results in the ram being selfacting, and if such movement is not complete a succession of light blows results. For obtaining a single blow arms 19b and 19c are turned on pivots and the lever 19 moved to the left to a position against the new position of a stop 19d on the arm 19b. The ram 3 remains suspended to manipulate the work on the anvil. By moving the lever 19 to the left until it is adjacent a stop 19e on the arm 19c a maximum single blow operation results which decreases with the distance away from the stop.
Patent GB-787165-A (GB)
Title: Instruments improving the operating of telephones in connection with telephone amplifiers
IPC: H04M1/62
Filed: 1956-04-30
Abstract: 787,165. Substation apparatus. CORONEL, H. S. Sept. 10, 1956 [April 30, 1956], No. 13280/56. Class 40 (4). In a substation apparatus including an amplifier having a microphone fed by the sound output of the telephone receiver, a platform is provided to support the telephone set and an arm at the back of the platform is actuated by manually operated means, e.g. a lever or pushbutton, at the front or side thereof so as to move the receiver rest up and down at the beginning and end of a call, so that the telephone handset may be permanently positioned adjacent the amplifier microphone.
Patent GB-753768-A (GB)
Title: Improvements relating to electric storage battery plates
Inventor: SMYTH JOHN REILEY
IPC: H01M4/20
Filed: 1954-05-06
Abstract: 753,768. Batteries. ELECTRIC STORAGE BATTERY CO. May 6, 1954, No. 13293/54. Drawings to Specification. Class 53. The negative active material of an accumulator consists of yellow sublimed lead oxide which is made into a paste with dilute sulphuric acid. The pasted electrode is exposed to air at 60-80‹ F. with a relative humidity of 70-95 per cent to set the paste which may be done by hanging them on racks beneath a canvas cover.
Patent GB-133120-A (GB)
IPC: F02M21/10
Abstract: 133,120. Jordan, G. D. Sept. 3, 1918. Vaporizers, external.-A kerosene vaporizer comprises an exhaust-gas passage 3, Figs. 2 and 3, an air and mixture conduit 3d leading to the inlet ports of the engine, and a gasifier 8 for the kerosene, heated by the exhaust gas and supplying gasified kerosene to a nozzle 3k in a constricted part of the conduit 3d. Primary and secondary air supplies to the conduit 3<d> are controlled by interconnected butterfly valves 3<o>, 3<p>, and the secondary supply is also controlled by an automatic spring-controlled valve 4. The gasifier Fig. 11, has a thin annular fuel space between two pipes 8<a>, 8<d>, and may be supplied by a twoway valve with kerosene or gasolene from one of two float chambers. It is heated at starting by an electrically-heated coil 8n. The exhaust passage 3 communicates with a casing 1, Fig. 8, fitting directly over the exhaust ports 1<a> of the engine and enclosing an inlet conduit 2, 2<c> in communication with the conduit 3d. In a modified arrangement, the kerosene-supply pipe passes through the exhaust passage, and the secondary air supply enters through a lateral inlet regulated' only by an automatic valve, which is fitted with an adjustable spring.
Patent GB-133226-A (GB)
IPC: A43B21/42
Abstract: 133,226. Oyler, A. W., and Jennings, F. Dec. 24, 1918. protectors, construction of.-A reversible elastic heel-pad 1 is provided with an interchangeable packing-piece 2 made of canvas, leather, rubber, &c. adapted to fill in the recess in the pad and form a bearing especially after one side of the pad is worn and reversed,
Patent GB-971906-A (GB)
Title: Method of processing flexible sheets
Inventor: HAWKES HOWARD THEODORE
IPC: B65H3/32
Filed: 1960-11-03
Abstract: 971,906. Loading and unloading pallets; lift trucks. SOUTHWORTH MACHINE CO. Nov. 3, 1960, No. 13337/64. Divided out of 971,905. Headings B8C and B8H. [Also in Division B6] The subject-matter is the same as that of Specification 971,905, but the claims relate to the method of use of the apparatus described.
Patent GB-432825-A (GB)
Title: Improvements in sanitary towels, surgical dressings and analogous articles
IPC: A61F13/15
Filed: 1934-05-03
Abstract: 432,825. Catamenial appliances; surgical dressings. TAYLOR, L., 3, Broughton Lane, Manchester. May 3, 1934, No. 13343. [Class 81 (ii)] Relates to a sanitary towel, surgical dressing, or similar fluidabsorbing article of the kind which comprises a number of layers of material having different powers of absorption, one or more of the layers acting as spreaders to cause the fluid to diffuse over the greater part of the article. According to the invention, the device consists of one or more layers of paper which has had its absorptive properties increased and one or more layers of material which is less absorbent. The absorption of the paper may be increased either by having its surface broken up by inmunerable very fine punctures, as described in Specification 423,828, [Group VIII], or by passing it over a series of stationary straight edges, as described in Specification 423,834, [Group VIII], or by a combination of both methods. The less absorbent material may consist of cotton wool, cellulose wadding, textile or gauze-like material, or paper which is initially less absorbent but has had part of its area treated by the processes referred to so as to leave strips or areas of untreated surface. The paper may also be coated in places with wax to form non-absorptive areas. The sanitary towel or surgical dressing may consist of a number of layers of the absorbent paper enclosed in a sleeve of gauze, or the layers a, Fig. 4, may be separated by layers c of relatively non - absorbent but fluid-transmitting material to act as spreaders. The layer c may have strips c<1>, Fig. 6, of untreated surface alternating with strips c<2> which have been treated by the processes described in Specifications 423,828 and 423,834. The paper layer may be provided with a backing d of relatively non-absorbent material such as unbleached cotton fibres or impermeable paper, the sides of which may be turned over the absorbent layers. The device may also include a central layer of gauze-like material which projects beyond the ends to receive rings or other means of attachment.
Patent GB-114575-A (GB)
Title: Improvements in or relating to Furnaces.
IPC: F23C1/02
Filed: 1917-09-18
Abstract: 114,575. Howden & Co., J., and Hume, J. H. Sept. 8, 1917. Liquid-fuel furnaces.- In a furnace adapted for burning oil or coal alternatively or together, a segmental piece 8 is attached to the handle 7 of the oil cock 5, so that the oil supply must be cut off and the piece 8 moved aside before the latch 3 can be removed from the catch 4 and the door opened.
Patent GB-313273-A (GB)
Title: Improvements in or relating to non-splintering glass sheets and plates
IPC: B32B17/08
Filed: 1928-05-07
Abstract: 313,273. Talbot, J. May 7, 1928. Compound transparent sheets. - A sheet of glass is interposed between two sheets of cellulose acetate, to make a non-splintering transparent sheet. The glass, when clean and dry and preferably warmed, is coated with a solution of 1¢ oz. gum arabic in 5 oz. of distilled water to which is added 1 drachm of glycerine and onehalf fluid oz, of acetic acid at a temperature of 100‹ F. When dry, a second coat is given of a solution of 1 oz. of gum elemi in 2¢ fluid oz. of acetone, 2¢ fluid oz. alcohol, and 1 fluid oz. of ethyl acetate, to which is added a solution of 1 fluid oz. of Canada balsam dissolved in benzole. The cellulose acetate sheets are coated with a solution consisting of 1 pint of a mixture of 4 parts of alcohol and 1 part of acetone to which is added 5 fluid oz. of Canada balsam dissolved in benzole and 1 fluid oz. of gum elemi dissolved in alcohol. When partly dry, the sheets are fixed to the glass by pressure and heat. The edges of the compound sheet may be sealed with a viscous solution of cellulose acetate.
Patent GB-140930-A (GB)
Title: Improvements in liquid spraying or atomising apparatus
IPC: F24F6/12
Filed: 1919-05-28
Abstract: 140,930. Andrew, T. May 28, 1919. Air-pressure sprayers.-The liquid nozzle b, mounted on the reservoir k, carries a curved arm c swivelling about the nozzle support e and being locked by the stud c<1>. The arm c has a slot d, through which a pin g carrying the air nozzle a is passed and secured in any position by a locknut and wing-nut. A spring-loaded valve n, a modification of which is shown in Fig. 4, is provided to prevent the formation of drops when the liquid supply is shut off. The Provisional Specification describes a form of filter m movable under the pressure of the liquid, but brought back to its normal position by a spring when the pressure is shut off.
Patent GB-135076-A (GB)
IPC: B44C5/06
Abstract: 135,076. Hudson, G. M., and Foreman, P. W. Feb. 17, 1919. Artificial flowers.-An artificial flower or plant is combined with the head or body of a doll or figure as shown so that the doll appears to be growing from the flower.
Patent GB-618439-A (GB)
Title: Antenna loading apparatus
IPC: G05D3/12
Filed: 1946-05-03
Abstract: 618,439. Inductances. BENDIX AVIATION CORPORATION. May 3, 1946, No. 13542. Convention date, April 14, 1943. [Class 38 (ii)] [Also in Croup XL (c)] A transmitter aerial loading unit comprises a motor pre-selector assembly 42 and series connected variometers with stators 24, 25, 26 and rotors connected in parallel, the rotor coils, Fig. 3, being connected to shaft stubs 46 secured in the hubs of flexible couplers which make sliding peripheral contact with brushes 28 connected to the stator terminals 15, 16, 17. The rotors incorporate as shown, iron cores 53. The rotor shaft terminates in a semi-circular switch contact 36 (Fig. 6, not shown), which disconnects the variometer just beyond its 180 degree control arc. Simtiltaneously at this point a relay 6, Fig. 1, operated by the ratchet motor driven pre-selector disconnects the other variometer contact, e.g. 15, 16 or 17, from the transmitter and connects the latter directly to the aerial to wholly isolate the variometer inductance.
Patent GB-670498-A (GB)
Title: Improvements relating to the regulation of high frequency oscillators
IPC: H05B6/04
Filed: 1948-05-19
Abstract: 670,498. Automatic current control systems. BRITISH THOMSON-HOUSTON CO., Ltd., and GULLICK, O. F. May 17, 1949 [May 19, 1948], No. 13551/48. Class 38 (iv). In a system for automatically maintaining constant the current in the resonant tank circuit of a high-frequency electronic oscillator, the control electrodes of a polyphase arc rectifier supplying the oscillator are supplied with a D.C. bias potential dependent on the alternating current in the tank circuit and with alternating potentials of fixed phase relative to the corresponding anode potentials. In Fig. 1, anode current is supplied through a three-phase arrangement of grid-controlled arc rectifiers V<SP>1</SP>, V<SP>2</SP>, V<SP>3</SP> to a valve oscillator (not shown) which may be employed for H.F. heating. A conductor X carrying the current in the oscillator tank circuit or a circuit coupled thereto forms the primary of a current transformer, the voltage across the secondary winding T<SP>2</SP> of which is rectified by a diode V' to produce across a resistor R<SP>6</SP> a corresponding D.C. voltage which is applied as negative gridbias to rectifiers V<SP>1</SP>, V<SP>2</SP>, V<SP>3</SP> and serves to maintain constant the current in conductor X should the load on the oscillator vary. A three-phase winding T<SP>1</SP> on the main transformer (not shown) supplying rectifiers V<SP>1</SP>, V<SP>2</SP>, V3 provides A.C. bias and the mean current through the rectifiers may be adjusted by phase-shift of this bias or by adjustment of a potentiometer R<SP>7</SP> providing a further D.C. bias. Resistance R<SP>6</SP> may also be adjustable for setting the value of current to be maintained in conductor X. In a modification, Fig. 2 (not shown), the secondary winding T<SP>2</SP> energizes the filament of a diode rectifier in shunt with a resistance across which is obtained a D.C. voltage drop variable with current in the oscillator circuit. Specification 439,166 is referred to.
Patent GB-807952-A (GB)
Title: Improvements in and relating to withdrawable electric switchgear
Inventor: WILSON JOHN THOMAS
IPC: H02B11/24
Filed: 1955-05-13
Abstract: 807,952. Switchgear structures. ENGLISH ELECTRIC CO. Ltd. May 11, 1956 [May 13, 1955], No. 13868/55. Class 38 (5). An isolatable circuit-breaker 10 is supported on runner wheels 11 in channel-section rails 12. As shown, the breaker is in the service position with isolating contacts 13, 14 connected. When the breaker is withdrawn to the isolated position, the pin 23 moves along the top of guide 27, between guide 27 and guide 26, and along the bottom of guide 26. This movement of pin 23 rotates a plate 24 pivoted to rail 12 and a link 25 rotates a plate 21 on spindle 22. The movement is transferred by links 19 and 20 to shutters 16, 17 which come together and cover the fixed contact aperture in a plate 15, the guide 26 locking the pin 23 against movement in the opening direction. When the breaker is moved back to the service position the action of the shutters is reversed. The two shutters can be padlocked together if the breaker is removed for servicing.
Patent GB-1048193-A (GB)
Title: Process for refining raw lactam
IPC: C07D201/16
Filed: 1964-04-03
Abstract: Raw lactam, produced by subjecting a cycloalkanoneoxime obtained by the photonitrosation of a cycloalkane, to Beckmann's reaction, is refined by treating with alkali in a liquid phase and subsequently or simultaneously hydrogenating in the presence of a catalyst.  The lactam may thereafter be treated with an ion exchange agent.  The alkali may be NaOH, KOH, Na2CO3 or K2CO3.  The hydrogenation may be carried out in water, alcohol or benzene using Ni, Co, Pt or Pd based catalysts. Examples relate to the treatment of caprolactam, capryllactam and lauryllactam.  Reference has been directed by the Comptroller to Specification 1,002,424.
Patent GB-1456282-A (GB)
IPC: C06C5/04
Filed: 1974-04-22
Abstract: 1456282 Detonating fuse-cords IMPERIAL CHEMICAL INDUSTRIES Ltd 8 April 1975 [22 April 1974] 13931/75 Heading F3A A detonating fuse-cord comprises a cap of heat-shrunk plastics material sealing one end of the cord. A plurality of the capped cords may be bound together by a sleeve of heat-shrunk plastics material to form a blasting cartridge.
Patent GB-782897-A (GB)
Title: Manufacture of polychlorobenzenes
IPC: C07C17/00
Filed: 1954-05-12
Abstract: A process for the manufacture of polychlorobenzenes comprises reacting benzene hexachloride in the gas phase with chlorine at a temperature between 200 DEG  and 350 DEG  C. in the presence of a chlorination catalyst which is nonvolatile within this temperature range.  The catalyst may be active alumina.  The polychlorobenzenes are separated by absorption in a solvent, preferably trichlorobenzene which may be prepared by the present process.  The solvent is subsequently cooled, whereupon solid hexachlorobenzene is separated out.  Hexa-, tetra- and tri-chlorobenzenes may be obtained by the process.  In an example a mixture of vaporized benzene hexachloride and chlorine is passed at 300 DEG  C. through a nickel tube filled with active alumina, and hexachlorobenzene is obtained.
Patent GB-630428-A (GB)
Title: Improvements in or relating to hot-gas engines
IPC: F02G1/055
Filed: 1946-05-09
Abstract: 630,428. Hot-gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 9, 1946, No. 14023. Convention date, Oct. 30, 1941. Drawings to Specification. [Class 7 (i)] In a hot gas engine in which a heat conveying medium is provided between the source of heat for the engine and the heater, which heat conveying medium receives through a wall heat from the source and entirely or partly passes from the liquid phase into the vapour phase and delivers heat through a wall of the heater to the working medium in the engine while entirely or partly passing from the vapour phase to the liquid phase, the temperature in the hot space during operation of the engine exceeds 400‹ C. and metals, metal alloys, salts for instance metal salts or mixtures thereof which do not decompose at the highest temperature to which the heat conveying medium is required to be heated are used for the heat conveying medium. A burner heats the heat conveying medium in a chamber where it entirely or partly passes from the liquid phase into the vapour phase. It then circulates to a heating jacket around the engine heater in which it gives up heat to the working medium in the engine while passing entirely or partly into the liquid phase. The medium then circulates back to the chamber to be reheated by the burner. The following' metals are suitable for the heat conveying medium : Sodium, potassium, cadmium calcium, mercury, zinc and lead or the following salts may be used : Metal halides for instance zinc chloride, aluminium bromide or mixtures thereof. Also metal nitrates, nitrites or mixtures thereof. It is advantageous if the heating medium is arranged to flow within the heating jacket in a number of parallel channels each having a small cross-sectional area. The Specification as open to inspection under Sect. 91 states also that cadmium iodide, calcium iodide or zinc bromide may be used as the heat conveying medium. This subject-matter does not appear in the Specification as accepted.
Patent GB-234828-A (GB)
Title: Improvements in electric remote control apparatus
IPC: H02J13/00
Filed: 1925-05-28
Abstract: 234,828. British Thomson-Houston Co., Ltd., (Assignees of Perkins, L. J.). May 28, 1924, [Convention date]. Wired wireless systems; thermionic relays.-In remote-controlled apparatus for giving an indication, or performing an operation, comprising a discharge device which is normally energized to a point short of that which will cause a discharge, the superposed current which increases the energization and causes a discharge and the operation of the indicating or other apparatus, is generated by a thermionic oscillator which is normally de-energized but is electrically connected to an energy source by means operated in accordance with the condition to be indicated. A high frequency generator 7 and amplifier 8, normally de-energized, may be caused to send high frequency impulses through a feeder 2, connecting a station B with a station A, when a circuit breaker 3. 4 opens, and give an indication bv a lamp 36. A contact 13 carried by a movable member on the circuit breaker connects a source of alternating current 10 to transformers 11. 12 supplying the plate and filament circuits of the valves 7, 8 and closes a circuit from earth at 15 through a tuning inductance 17, secondary of a coupling transfor. mer 9, and a condenser, to supply impulses of a definite frequency to the feeder 2. These are received.at station A by a tuned circuit comprising condenser 19, coupling transformer 20, and tuning inductance 21. A transformer 32 is adjusted'to apply an electromotive force to the electrodes of a discharge device 23, which is somewhat below that required to produce a discharge, and the received impulses are added thereto by the coupling transformer, the resulting current operating a relay 33 which closes a switch 37 in the circuit of the lamp 36. The discharge device may be that shown in Fig. 2 comprising dissimilar electrodes 27, 28 in a receptacle filled with a gas such as neon at a definite pressure and passing current in one direction only so long as the requisite potential is applied to the electrode.
Patent GB-1198230-A (GB)
Title: System of Movable Frets for Stringed Musical Instrument
Inventor: BARTH CARL
IPC: G10D3/06
Filed: 1969-03-18
Abstract: 1,198,230. Fretted fringerboards C. BARTH. 18 March, 1969 [27 May, 1968], No. 14261/69. Heading G5J. In a system of movable frets for stringed instruments each fret 24 is urged toward an associated string 16, as that string is depressed, by means of an actuator 26. The actuator is orientated and supported in position by a bracket 50 and a spring 38 biases an actuator finger portion 56 and biases the arcuate fret 24 downwardly for clockwise rotation, the frets, brackets and springs being housed in channels in the fingerboard 10 of the instrument (Fig. 1, not shown). Depression of the actuator 26 causes it to rotate the fret 24 against tab 54 of spring 38 resulting in engagement between the fret and the string in a plane which is located above the static fret plane 32. When the pressure is released the bias of the spring returns the fret and actuator to their initial positions.
Patent GB-193803-A (GB)
Title: Improvements in lubricating systems for locomotives and similar vehicles
IPC: B61F17/02
Filed: 1922-05-20
Abstract: 193,803. Aktiebolaget Ljungstr÷ms Angturbin. Feb. 24, 1922, [Convention date]. Dust - excluding casings.-In lubricating systems for locomotives and like vehicles of the type described in Specification 138,617, in which the driving- gear and coupling-rods are enclosed in dusttight casings -which collect oil from the bearings and may form part of a system of forced lubrication, each casing is composed of upper and lower parts connected by a substantially horizontal joint. Figs. 1 and 3 show the transmission gear and coupling rods of a turbine-driven locomotive enclosed in divided casings, the upper parts 11 of which are connected to the framing while the lower detachable parts 12 are connected to the upper parts by angle irons 36. To prevent the escape of oil at the axles, while providing for relative movement between the casings and the axles due to the play of the springs, the axle bearings are fitted with discs 17 which can slide between other discs 18, 19. This construction allows vertical oscillations and pitching movements of the frame. In addition, a spherical bearing is provided between the discs 18, 19 and discs 20, 21 carried by the casing, to permit swaying and rolling of the framing and casings relatively to the axles. The application of the invention to a locomotive driven by reciprocating engines also is described. When a system of forced lubrication is employed, the pump withdraws oil from the lower portion of the casings and delivers it to the various bearings.