baber/WOPTO huggingface dataset:
Patent GB-646599-A (GB)
Title: Improvements in or relating to methods of applying impervious films to articles suchas radio components
Inventor: JONES GEOFFREY CHARLES
IPC: B05D7/16
Filed: 1948-04-15
Abstract: Hermetically-sealed components for radio or electrical apparatus are made by applying an adhesive film of polyisobutylene to the component and then a solution of polythene in a solvent having a boiling point higher than the melting point of polythene, and evaporating the solvent.  The solution may be applied by dipping, spraying, painting, moulding or other known method and the component may be preheated to a temperature higher than the boiling point of the solvent before applying the solution which may also contain fillers.  The polyisobutylene is preferably applied as a solution in a similar solvent, e.g. xylene.  The Provisional Specification discloses a process in which the polythene solution is applied without the initial polyisobutylene coating and lists polyisobutylene, rubber-like materials, gums, waxes, natural and synthetic resins, plastics, mica, silica, clays, and ceramic materials and silicones as suitable additives for the polythene solution.
Patent GB-1220208-A (GB)
Title: Trigger switch speed control unit with electrical feedback
Inventor: RUTCHIK WALTER LAURENCE
IPC: H02P7/295
Filed: 1969-02-27
Abstract: 1,220,208. Retroactive switches, resistance motor controllers. CUTLER-HAMMER Inc. 27 Feb., 1969 [27 Feb., 1968; 19 July, 1968], No. 10497/69. Headings H1N and H1S. [Also in Divisions H2 and G3] A trigger operated, combined on/off switch and speed control for a portable power tool has a first sliding contact 8a co-operating with a fixed conductive strip 8b, a first fixed contact 8c connected through a controlled semiconductor rectifier (Figs. 1-3, not shown-see Division G3), and a second fixed contact 8d connected directly to the motor of the tool for full speed operation; and a second sliding contact PS bridging a conductive strip CS to a resistive strip PR thus forming a potentiometer which is connected to provide a set speed reference voltage for a retroactive speed control circuit employing the controlled rectifier. The two sliding contacts 8a, PR are mounted in the trigger operator 12 and the speed control elements are contained in a casing 10, the top cover 24 of which carries the fixed contacts 8b-8d and the potentiometer PR, CS. The trigger 12 is mounted to the casing 10 by a metal cover 14 which also carries a conventional locking button (14a, Fig. 6, not shown).
Patent GB-656155-A (GB)
Title: Improved pressure-oil controlled marine gears
IPC: F16H3/00
Filed: 1948-04-15
Abstract: 656,155. Thrust bearings. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. April 15, 1948, No. 10532. Convention date, April 23, 1947. [Class 12 (i)] [Also in Group XXIV] A member 24 rigid with the housing 23 of a marine reversing-gearing (see Group XXIV), acts both as the casing of a valve 36 controlling the admission of pressure oil to the gear clutches and as the fixed member of a bearing absorbing the axial thrust of the propeller, collars 25, 26, fast on and preferably integral with the gearing output shaft 14 coupled to the propeller shaft, taking up forward and reverse drive thrust respectively. The valve 36 can supply oil to one or other of ducts 28, 30 to effect engagement of the forward or reverse drive gear clutch respectively, and oil is also constantly supplied to a duct 29 to hold both clutches disengaged when the valve 36 communicates with neither of the ducts 28, 30, the clutches being of the kind described in Specification 207,318, [Class 80 (ii)], having both engaging and disengaging fluid spaces. A lubricating duct 35 leads from the duct 29 to the thrust surface of the collar 26, which is under load both during reverse drive and when the ship is moving ahead without drive, so that this surface is constantly lubricated, and a lubricating duct 34 leads from the duct 28 to the thrust surface of the collar 26 so that this is lubricated only during forward drive.
Patent GB-826859-A (GB)
Title: Improvements in rotary regenerative air preheaters
IPC: F28D19/04
Filed: 1956-04-06
Abstract: 826,859. Regenerators. SVENSKA ROTOR MASKINER A.B. April 6, 1956 [April 6, 1955], No. 10588/56. Class 64(1) In a rotary regenerative air preheater the rotor 1, Fig. 1, at one or both of its end faces carries a grating 6 having bars with their edges located exactly in a plane disposed perpendicular to the rotor axis. The grating bars which may have a height of between 20 and 40 mm. and a thickness of a few millimeters may also have rounded edges to facilitate air flow. They form a square, rectangular or trapezoidal mesh with the bars running towards the periphery lying either radially or parallel to a bisector of the sector 3 to which they are fitted. Alternatively, radial bars connected by radially extending corrugated bars may be used. Each grating may cover a single sector 3, part of a sector or a number of sectors. Fig. 2 shows a rotor with a vertical axis, three gratings 6<SP>1</SP>, 61<SP>1</SP> and 6<SP>111</SP> and two layers of transfer plates 7<SP>1</SP> and 7<SP>11</SP>, the lowest grating being supported by strips 8 secured to the lower edges of the partitions 2 between the sectors 3. When corrugated transfer plates are used, the grating is applied so that a bar extends along each of the straight lines defined by the points of contact between the corrugations. To prevent thermal deformation of the rotor from impairing the seal between the gratings and the cover plates 4, 5, each grating 9, 10, Fig. 3, may be formed as a single element which is secured to the rotor shaft 11. Sealing elements 12, 13 are used in the gaps between the gratings and the rotor.
Patent GB-902448-A (GB)
Title: Improvements in or relating to cigarette displacement devices
Inventor: AHNE OTTO
IPC: A24C5/47
Filed: 1960-03-25
Abstract: 902,448. Cigarette - making machines. TABAK-UND INDUSTRIEMASCHINEN DRESDEN VEB. March 25, 1960, No. 10591/60. Class 130. A pair of cigarettes 10 with an interposed filter tip carried in grooves on a suction drum 5 are abutted together axially by spring tongues 20 which are moved inwardly by a roller 17. The tongues 20 are formed by a slotted disc 18 and the cigarette and filter tip groups are moved sideways against adjustable stops 21 at a point immediately preceding the position at which connector bands are applied to the groups. The roller 17 is carried by a block 15 adjustable in a groove 14 in an arm 13 clamped to the stationary axle 2 of the drum 5.
Patent GB-763002-A (GB)
Title: Improvements in or relating to television camera or like head amplifier arrangements
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H04N5/228
Filed: 1954-04-10
Abstract: 763,002. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 24, 1955 [April 10, 1954], No. 10604/54. Class 40 (3). A head amplifier utilizing transistors is employed for amplifying signals derived from a picture signal generating tube. Fig. I shows the arrangement employing cascade connected transistors 5, 10 for use with a tube 1 of the photo-emissive type and Fig. 2, the arrangement when a tube 20 of the photo-conductive type is employed. An advantage of the invention is stated to be an improvement in the signal/noise ratio and in the frequency response characteristic over conventional head amplifier arrangements in which the signal currents produced by the pick-up tube are employed to develop a voltage across a high resistance for application to a thermionic valve amplifier. The effect of noise components of frequency below the line scanning frequency (in which range transistor noise is relatively large) may be reduced by employing a D.C. restorer of the clamp type operating at line frequency (e.g. as described in Specification 449,242) at a point subsequent to the transistors.
Patent GB-106502-A (GB)
IPC: F02F3/02
Abstract: 106,502. Larsen, E. April 28, 1916, [Convention date]. Pistons, balancing laterally. - The piston of an internalcombustion or other engine is balanced laterally by fluid pressure in chambers 2, 3 formed either in the piston or in the cylinder or in hoth. The chambers are connected with the combustion chamber or other source of pressure by passages 5, 6, which may be controlled by non-return or by mechanically-operated valves.
Patent GB-422544-A (GB)
Title: Method of and means for shaping butter and similar materials
IPC: A01J19/00
Filed: 1933-04-10
Abstract: 422,544. Butter-curlers. WUSTER, H., 22, Leipzigerstrasse, Gera, Germany. April 10, 1933, No. 10664. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 29, 1933]. [Class 84] [See also Group V] A butter-curler comprises a handle a provided at one end with a scraper c having blunt front end c<1> formed on its upper and lower surfaces with sharp conical notches d. The oblique surfaces of the notches are so disposed that they form a zig-zag or wavy line on the front edge of the scraper.
Patent GB-106645-A (GB)
IPC: B64C35/00
Abstract: 106,645. Quick, W. B. May 25, 1916. Planes, construction of, aerostats.-The whole extent of the planes of aeroplanes and seaplanes is divided into a number of spaces having air-tight con. tainers adapted to be in flated with air, hydrogen, or other gas to render the planes more buoyant. The containers have each a nozzle l and a valve by means of which they are inflated separately or by a common supply pipe.
Patent GB-612334-A (GB)
Title: Improvements in or relating to the firedoors of stoves or the like
IPC: F24C15/12
Filed: 1946-04-08
Abstract: 612,334. Stove doors. MITCHELL, RUSSELL, & CO., Ltd., and PRESTON, T. B. April 8, 1946. No. 10714. [Class 126] [Also in Group XIII] A solid-fuel stove has two firedoors at the front of the stove hinged for lateral movement to an open position, the open firedoors being concealed by hinged side-panels. Two doors 15 are hinged to the front corner of the stove, the hinges allowing the doors to swing laterally to stowed positions inside . the side air-heating passages 11 formed between the inner and outer casings of the stove. The outer walls of the side passages consist of panels 19 hinged at the rear and having inturned front portions 20 which conceal the hinges 18 of the firedoors when the latter are stowed. The hinge parts of each door 15 have cam surfaces 22 which engage when in the closed position with surfaces 23 on the side panels so that when the firedoors are opened initial opening movement of the side panels is effected automatically. Handles 28 are provided on the side panels and each door has a projection 27 which can be engaged by a tool when the door is drawn forward from the stowed position. The hinges 21 of each side panel are carried by a vertical plate 24 having therein vertical slots engaged by screws 26, thus permitting adjustment of the position of the side panels.
Patent GB-574817-A (GB)
Title: Improvements in or relating to the mounting on a bogie of the body of a rail vehicle
IPC: B61F5/14
Filed: 1943-07-02
Abstract: 574,817. Railway vehicle bogies; dashpots. SULZER FRERES SOC. ANON. July 2, 1943, No. 10764. Convention date, July 18, 1942. [Classes 103 (vi) and 108 (iii)] In a mounting on a bogie for the body of a railway vehicle and which is of the type including spring side-bearings and hydraulic damping-devices, single structural elements each comprising a spring side-bearing and a hydraulic damping-device are arranged directly between the bogie frame and the vehicle, a swing bolster being omitted. In the construction shown in Figs. 1 and 2, the top part 5 of each side bearing is fixed to the body 1 and forms a casing for the spring 8 ; the bottom part 6, which forms a guide for the spring, slides in the upper part 5 and is supported by a part-spherical socket 7 mounted on the bogie frame 2. The hydraulic damping-device is provided by hollow guiding parts within parts 5 and 6 which provide liquid-containing spaces 13, 14 of which 13 diminishes in oil capacity as parts 5 and 6 are pushed together so that liquid is forced through a throttle opening 10 in a plug 9 carried at the bottom end of the part containing the space 14. In a modification, Fig. 3, the throttle opening 10 is not in the plug 9 but in a spring-loaded valve 15, the liquid passing from space 13 during slow movements between the parts 5 and 6 through the opening 10 and a large opening 17, but under higher pressure in space 13 the valve 15 lifts so that liquid can pass readily through openings 18, 19. In another modification, which is designed to limit the pressure occurring in the liquid spaces during movements in each of the two directions, the spring valve 15 is made as a differential piston. A further modification with double-acting dampers exerting equal forces in the two directions is also described.
Patent GB-610495-A (GB)
Title: Improvements in or relating to power plants
IPC: F01K23/14
Filed: 1946-04-08
Abstract: 610,495. Aircraft propelling plant. HOOKER, S. G. April 8, 1946, No. 10807. [Class 4] [Also in Group XXVI] A power plant comprises a gas turbine driving a rotary air compressor delivering air at its delivery pressure to the turbine, a load driven by the turbine, the torque reaction of which is variable to enable the speed of the turbine and the delivery pressure of the compressor to be varied and a reciprocating engine driving a separate load arranged to exhaust to the gas turbine against the back pressure of the compressor delivery. In the plant shown, a gas turbine 17 which drives a rotary air compressor 18 supplying air to the turbine and a variablepitch propeller 14 is combined with a reciprocating engine 10 which exhausts into the pipe 19 connecting the compressor 18 and turbine 17 and drives a separate propeller 11. The speed of the turbine 17 and, indirectly, the pressure at the discharge of the compressor is controlled by varying the pitch of the propeller 14. Since the reciprocating engine 10 exhausts against the back pressure of the compressor delivery, the output from this engine will also be controlled by the pitch of the propeller 14. The pitch of the propeller 14 may be controlled by a variable-datum constant speed unit, and datum speed of which may be adjusted either manually by reference to a gauge indicating the back pressure in the reciprocating engine exhaust or automatically by an altitude responsive device. The arrangement is such that at ground level the front propeller 14 is adjusted to maximum coarse pitch so that the turbine 17 and compressor 18 run at their slowest speed and lowest output. The reciprocating engine 10 then exhausts against a minimum back pressure and develops its maximum power. As the aircraft gains altitude, the propeller 14 is set to a fine pitch, the turbine 17 gains speed and develops more power whilst the increase in back pressure on the reciprocating engine lessens the power developed by it. In a modification, two or more turbine-driven compressors 17, 18 are employed to drive the propeller 14. It may be desirable to supply an over-rich mixture to the reciprocating engine at altitude or to inject additional fuel into the air delivered from the compressor 18.
Patent GB-996429-A (GB)
Title: Improvements in or relating to gas-blast electric switches
IPC: H01H33/83
Filed: 1964-03-13
Abstract: 996,429. Gas blast switches. SIEMENSSCHUCKERTWERKE A.G. March 13, 1964 [March 22, 1963], No. 10872/64. Heading H2B. A gas blast circuit breaker has a hollow cylindrical moving contact 2, with arc resistant tip 4, which is engageable with fixed resilient finger contacts 12 supported in a guide 25 and surrounded by an insulating nozzle 30 having a cylindrical mouth 35 through which passes the contact 2 and a smoothly tapering portion 26 which co-operates with the outer surface of guide 25 to form an annular channel 40 for arc extinguishing gases, there being an arcing pin 20 located concentrically of the contacts 12 and having a tip 21 in the region of the transition between the cylindrical and tapering parts of the nozzle 30. Passages 39 feed the blast gas which may be SF 6  from the port 38 to the annular channel 40; additional passages 42 pass gas to the region of the arc through the spaces between the contacts 12. The moving contact 2 is mounted upon a piston 6. To open the contacts the port 38 is connected to compressed gas source. The gas passes through channel 40 and between the contact 2 and the nozzle 35 and acts on piston 6 to open the contacts. The contacts only open when the pressure is sufficient for the blast action. The blast gas may be recirculated through a compressor (not shown).
Patent GB-181547-A (GB)
Title: Improvements in and relating to portable stands for vices and the like or other tools
IPC: B25H1/04
Filed: 1921-04-14
Abstract: 181,547. Steele, G. A. April 14, 1921. Tripod and like stands.-A portable stand for vices and other tools comprises a supporting member to which are pivoted four legs adapted to be extended and held so that they intersect a horizontal plane in positions forming an isosceles trapezium, and an anchoring platform consisting of two parts, each carried by a front leg. As shown, for supporting the vice described in Specification 181,546, [Class 61 (ii), Hand tools], a rectangular supporting plate 1 is provided with four twisted lugs 2 to which, by means of lugs 4, are pivoted four legs 3 adapted to extend and to be held by a stay 8 pivoted to one front leg and attached by a hook 9 to the other and by a plate 11 bent over the stay 8 and attached by similar hooks to the back legs, the plate having upturned edges 12 to adapt it as a tool tray. Two members 13, together constituting an anchoring platform, have bevelled meeting edges 16 and are pivoted by slidable lugs 14 to the front legs 3. In the folded dotted line position, Fig. 1, the legs are folded together, the members 13 are suspended by pins 5 on chains 6, and the stay 8 together with the tray 11 is swung down. The pins 5 also pass through coinciding holes in the lugs 2, 4 when the legs 3 are in the extended position.
Patent GB-115548-A (GB)
Title: Improvements in and relating to Reversing Mechanism for Grinding and other Machines.
Inventor: MARKS EDWARD CHARLES ROBERT
IPC: B24B47/04
Filed: 1917-07-30
Abstract: 115,548. Marks, E. C. R., (Norton Grinding Co.). July 30, 1917. Addition to 105,973. Driving and feed devices.-In a reversing arrangement of the type claimed in the parent Specification, the driving-connexion between the worm and its shaft includes (a) means for cushioning the relative movement between the worm and shaft when the latter is reversed, and (b) opposed clutch members connected respectively to the worm and shaft and engaged at the completion of the gradually increasing movement of the worm wheel to drive the worm and wheel at normal speed. The cams 20, 21, carried by the worm 15, which are engaged by the rolls 25, 26 carried by driving-arms 23, 24 mounted on the driven shaft 16, are provided with conical clutch surfaces 30, 31, adapted to engage the clutch surfaces 32, 33 on the arms 23, 24 at the completion of the axial movements of the worm. The device runs in oil, and the liquid trapped between the approaching parts 20, 23, and 21, 24, acts to cushion the movements of the worm. The oil is expressed through holes 35 in the form of jets which lubricate the worm.
Patent GB-542283-A (GB)
Title: Improvements relating to electric arc rectifiers
IPC: H01T11/00
Filed: 1940-06-27
Abstract: 542,283. Arc rectifiers. BRITISH THOMSONHOUSTON CO., Ltd. (Tokyo Shibaura Denki Kabushiki Kaisha). June 27, 1940, No. 10970. [Class 39 (i)] In an arc rectifier a magnetic field transfers the arc 3 from the igniting points 8, 9 integral with the main electrodes to a place where the arc is inter-. rupted. The transfer may be completed by an air blast which drives the arc on to a divided baffle plate 7 ; the igniting points are screened from the full pressure of the air by a grid 10. In a modification the arc is driven into a liquid by the magnetic field.
Patent GB-459596-A (GB)
Title: Manufacture of solutions of polymerisation products
IPC: C08J3/03
Filed: 1935-04-09
Abstract: Aqueous solutions of polymeric compounds of the vinyl series are prepared by dissolving the polymeric compound in a substantially saturated aqueous solution of a salt derived from a monobasic acid and a metal of groups I, II or III, the salt being capable of forming aqueous solutions of at least 50 per cent strength at ordinary temperatures.  The solutions, which may also contain polymeric carbohydrate such as cellulose, cellulose ester or ether, polypeptides such as fibroin, a filling agent, pigment or softening agent, may be used in the manufacture of threads, films, sheets or other shaped articles.  In examples: (1) polyacrylic nitrile is dissolved in aqueous lithium bromide to form a solution which can be ejected from jets or slits to form threads or films; (2) polyacrylic nitrile is dissolved in aqueous zinc chloride, sodium sulphocyanide or in aqueous lithium bromide containing hydrated cellulose and silk waste; (5) a polyvinyl formal is dissolved in aqueous aluminium perchlorate; (6) a condensation product of polyvinyl alcohol and butyraldehyde is dissolved in aqueous calcium sulphocyanide; (7) interpolymers of acrylic acid and methyl acrylate, vinyl chloride and acrylic nitrile and methyl acrylate and acrylic nitrile are dissolved, respectively in aqueous cadmium bromide, calcium sulphocyanide or calcium perchlorate.  The Provisional Specifications refer in general terms to the use of concentrated aqueous solution of metal salts as solvents for the polymers.
Patent GB-103950-A (GB)
Title: Improvements in or relating to Phonographs and like Machines.
Inventor: DICKINSON JOSEPH HUNTER
IPC: B65D90/08
Filed: 1916-01-06
Abstract: 103,950. Dickinson, J. H. Jan 6, 1916. Sound magnifying and directing appliances. - In a phonograph or like talking-machine the turntable brake and the soundcontrol valve are operated through elongated flexible members from a single handle containing a pair of control elements. Fig. 1 shows a sectional view of a handle containing a pair of control elements 73<a>, 64 connected respectively to the sleeve 73 and rod 63, adapted to be moved relatively to the sheath 60 so as to operate the flexible connexions 74, 65. Fig. 2 shows an inverted plan of the cabinet having legs 41 and clips 71, 72, in which the control handles 60 and flexible control can be housed when out of use. The brake is operated through the rod 78 and vertical spindle 80. The sound-control valve is connected to the crank 45 on the shaft 46 and is held in its inoperative position by a spring 50 connected to a crank 49 on the shaft 46. The crank 49 carries laterally projecting pins whereby it can be operated by either of the cranks 51, 52 mounted loosely on the same shaft. The crank 51 is connected to a secondary control, and the crank 52 to one of the elongated flexible members.
Patent GB-1191651-A (GB)
Title: Mixer Valve
Inventor: KIESLICH HORST
IPC: F24D19/10
Filed: 1967-04-09
Abstract: 1,191,651. Valves. ONDAL G.m.b.H. 9 April, 1967, No. 11057/67. Heading F2V. [Also in Division F4] A mixing valve for controlling the degree of communication between the boiler and radiator circuits of a central heating system (see Division F4) comprises inlets 10A, 10B and outlets 10C, 10D, a rotary valve member 14 mounted on a spindle 14a and a bimetallic coil 11 for rotating the spindle as a function of the temperature of the fluid entering inlet 10B. As shown in Fig. 3, the valve element comprises a flap 14c having semicircular end flanges 14e, 14f projecting on opposite sides of the spindle. Outlet 10D includes a check valve comprising a plate 12a which is urged against its seat 10k by a spring 12b. The mixing valve never completely prevents communication between the two circuits and has a manually operable lever 10/for opening element 14 and check valve 12a for filling the circuits with fluid.