baber/WOPTO huggingface dataset:
Patent GB-296349-A (GB)
Title: Improvements in or relating to vacuum electric discharge devices
IPC: H01J19/42
Filed: 1928-08-25
Abstract: 296,349. Westinghouse Electric & Manufacturing Co., (Assignees of Mouromtseff, I. E.). Aug. 29, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vacuum tubes. - A discharge device, mainly intended for a high-voltage oscillation generator, comprises two electrodes having supports lying in different planes and mutually registered by an insulator having pairs of radial arms, one pair of which engage the supports of one electrode and another pair engage the supports of the other electrode, and the anode is flanged and corrugated to give it mechanical strength. The anode 22 is formed of two trough-shaped members having longitudinal flanges 24 which are riveted together and pressed around molybdenum support wires 7 that pass through holes 8 in one pair of arms of the insulator 11 and extend to a supporting collar 6 clamped on an extension 5 of a re-entrant part 2 of the tube, which encloses the press in which the. cathode leading-in wires 4 are sealed. Corrugated flanges 25 and other corrugations 26 are formed on the anode to strengthen it. Support wires 13 for the control electrode engage in holes 14 in the other pair of arms 12 of the insulator, and if a cathode is present its support wires 17, 19 are. also mounted in these arms. Duplicate insulators may be mounted above and below the electrodes. The leading-in wires 29, 30 of the anode and the control electrode are sealed in the extreme end of the tube.
Patent GB-786632-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/48
Filed: 1953-09-04
Abstract: 786,632. Thermionic valves. M-O. VALVE CO., Ltd., and WINDSOR, L. R. E. Aug. 23, 1954 [Sept. 4, 1953], No. 24526/53. Class 39(1). A thermionic valve has an elongated thermionic cathode 1 located by at least one mica plate 2 disposed perpendicular to the longitudinal axis of the cathode adjacent one end thereof, the cathode passing through an aperture 3 in the plate 2 and being pressed against the V-shaped sides 5 thereof by a flexible tongue 7 formed in the plate and having slots 6 on either side thereof. The plate 2 has apertures for locating one or more support wires 4 for electrodes in addition to the cathode, the arrangement shown in Fig. 1 being applicable to a pentode. The cathode 1 and other electrodes can be located by mica plates at each end thereof, both plates being of the form described above or one of them being such as to hold the cathode rigidly. Additional mica plates may be provided to locate one or more electrodes not located by the plate 2 serving to locate the cathode.
Patent GB-1205728-A (GB)
Title: Signal-transmission system
IPC: H04B1/68
Filed: 1969-05-14
Abstract: 1,205,728. Compandor systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 14 May, 1969 [17 May, 1968], No. 24532/69. Addition to 1,137,457. Heading H4R. In a compander system of the type described in Specification 1,137,457 in which the degree of compression given to a signal is signalled as frequency modulation of a pilot signal, which is also transmitted through the compandor system so that restoration of the pilot signal to the standard level is controlled both by the frequency and the amplitude of the pilot signal, the control signal which varies the degree of compression at the transmitter is applied to the variable gain network via a delay network which has a delay equal to the difference in time taken for the signals to travel from the compressor to the expander, relative the time taken for the control signal to travel from the frequency demodulator controlling the compressor at the transmitter to the frequency demodulator controlling the expandor at the receiver. The transmitter, Fig. 1, is identical to that of the parent Specification referred to above except for the addition of the delay network 53 in the control line of the compression network 9 and the addition of a frequency transposition by modulator 47 in the pilot signal feed, which arrangement increases the accuracy of the frequency modulation by allowing the use of a low-frequency oscillator 31. The receiver, Fig. 2, is the same as that of the parent save for an additional expandor network 54 connected in front of the normal expandor network 21 and controlled directly by the output of the frequency demodulator 39, and a frequency transposition including modulator 50, the inverse of that in the transmitter.
Patent GB-344333-A (GB)
Title: Improvements in or relating to combined kinematograph and sound record films
Filed: 1930-08-16
Abstract: 344,333. Combined picture and sound films. KODAK Ltd., Kingsway, London.- (Assignees of Capstaff, J. G. ; Kodak Park, Rochester, New York, U.S.A.) Aug. 16, 1930, No. 24581. Convention date, Aug. 30, 1929. [Class 40 (ii).] In the production of a combined kinematograph and sound film having a tinted picture area and an untinted sound track the tinting dye which has been applied over the whole film, either before or after slitting, is removed from the sound track by scraping or grinding the dyed surface. Fig. 1 shows apparatus with adjustable scrapers 7, slitting discs 10, and a suction box 13 for taking off loose scrapings. Fig. 2 shows apparatus in which the dye is removed from the sound tracks 8 by grinding discs 16. The scraping or grinding apparatus may be combined with apparatus for perforating the sprocket apertures in the film.
Patent GB-1040214-A (GB)
Title: Method of and apparatus for setting tire bead rings
IPC: B29D30/32
Filed: 1963-06-20
Abstract: 1,040,214. Building tyres. YOKOHAMA RUBBER CO. Ltd. June 20, 1963 [June 28, 1962], No. 24614/63. Heading B7C. A method of setting a plurality of bead rings and a chafer strip in a tyre comprises the steps of slidably fitting the bead rings over an axially reciprocable tribular member 6 arranged in axial alignment with a tyre building drum 1 and then transferring the bead rings and the chafer strip one after another on to the tyre being built so that they are bonded thereto by a transferring unit including a split barrel 16-17-18 which releasably embraces the member 6 and is axially reciprocable therealong. The member 6 is supported by a housing 4 which is mounted on the drum shaft 2. The split barrel is opened and closed, and moved axially over the member 6 by means of hydraulic or pneumatic assemblies 15, 7 respectively, while the member 6 is moved along the shaft 2 by means of a further hydraulic or pneumatic assembly 20. After the bead rings 9, 9A and the chafer strip 10 have been positioned on the member 6, the split barrel is closed about the said member so that the front and rear flanges 16, 17 are located immediately behind the rings 9, 9A respectively. When the member 6 is moved forward towards the drum 1, the bead ring 9 is forced against the partially built tyre by inflated bladders 24 attached to the front flanges 16. The member 6 is then withdrawn and the split barrel is opened and moved axially until the flanges 16, 17 are immediately behind the bead ring 9A and the chafer strip 10 respectively. The split barrel is closed and advanced along the member 6 until the bead ring 9A occupies the original position of the bead ring 9 and the chafer strip 10 that of the bead ring 9A, so that the second bead ring may be applied to the tyre as before. Finally the chafer strip 10 is advanced by means of the split barrel to the original position of the bead ring 9 and is subsequently applied to the tyre.
Patent GB-343424-A (GB)
Title: Improvements in the manufacture of optical metal mirrors
IPC: C03C17/09
Filed: 1929-08-12
Abstract: In the manufacture of optical metal mirrors, a melt of silver and aluminium is vaporized in a high vacuum and the vapours condensed on to a base which is preferably highly polished.  The base may be of metal, quartz or glass having a low alkaline content, and may be heated to increase the adhesion of the reflecting coating.  The composition of the melt may vary in wide limits, an advantageous composition consisting of 92,2 per cent of silver and 7,8 per cent of aluminium.  According to the first Provisional Specification the aluminium and silver layers may be deposited successively, and silver may be combined with metals other than aluminium, such as silicon, nickel and magnesium-aluminium alloys.
Patent GB-1108195-A (GB)
Title: Improvements in or relating to the production of filter material, particularly for tobacco goods
IPC: D04H1/407
Filed: 1966-06-02
Abstract: Tobacco smoke filters are manufactured by adding to cellulose based fibres of a non-woven fabric surface-active substances, e.g. activated charcoal, during lye-steeping treatment carried out for consolidating the fibres, the surface-active substances also being fixed during subsequent acid treatment, in the fibre surface.  Loose active substance particles are removed during the after-treatment. The particles of surface active substances are held in continuous suspension in the lye by mechanical agitation.
Patent GB-805113-A (GB)
Title: Improvements in or relating to gas producing compositions
Inventor: HOLKER KENNETH URMSTON
IPC: C06B31/30
Filed: 1956-08-13
Abstract: 805,113. Gas producing compositions. IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 24, 1957 [Aug. 13, 1956], No. 24678/56. Class 9(2) A gas-producing composition adapted to be compressed into pellets comprises an alkali-metal or ammonium nitrate, guanidine nitrate or nitroguanidine, an agent adapted to sensitize thermal decomposition of the foregoing and magnesite or dolomite. Sensitizing agents may be pulverulent copper and copper compounds, chromates and poly-chromates such as potassium chromate and ammonium dichromate. Artificially prepared magnesium and calcium carbonates are not effective in the compositions. The natural magnesium carbonates may be employed in amounts not exceeding 40 per cent. In an example a composition comprising guanidine nitrate, ammonium nitrate, potassium nitrate, dolomite, ammonium dichromate and copper oxalate is described.
Patent GB-385356-A (GB)
Title: Apparatus for automatically controlling the heating of liquids
IPC: G05D23/275
Filed: 1931-09-03
Abstract: 385,356. Regulating combustion. WOOD, J. H. P., 34, Mulgrave Street, Swinton, near Manchester. Sept. 3, 1931, No. 24716. [Class 51 (i).] In apparatus for controlling the temperature of circulating water for heating purposes, water from the boiler circulates through a hollow member 2 provided with a thermostat 4 and an indicating thermometer 3, the former operating through an electric circuit to control a fan supplying air for combustion to the furnace serving to heat the boiler. The hollow member comprises two vertical members 2a, 2b connected at the ends by substantially horizontal members which are in turn connected with the boiler. The upper ends of the vertical members are fitted with valves 15, 15a for the release of air pockets. The thermostat is connected with a mercury switch by a lever 9 pivoted at d. In a modification, steam pressure is used as the controlling medium and the thermostat and thermometer are replaced by a pressure actuated control means and a pressure gauge.
Patent GB-333734-A (GB)
Title: Improvements in or relating to brake bands particularly for free-wheel differential devices
IPC: F16D49/10
Filed: 1929-08-13
Abstract: 333,734. Oliver, A. V., and De Lavaud Free-Wheel Differential, Ltd. Aug. 13, 1929. Band.-Brake bands for freewheel differential devices of the kind described in Specification 316,312, [Class 80 (ii), Gearing, Variable-speed &c.], comprise a continuous ring-like outer portion 1 and an inner portion 2 adapted normally to rotate with the brake drum and so formed and associated with the outer portion that when the band is held stationary by arrest of the outer portion at any point, constant braking efforts are provided which have different values for forward and reverse rotation of the drum. The outer portion 1 is recessed at 7 to accommodate an arcshaped pin 8 and the inner portion is provided with end flanges 10, 11, one of which slides over the pin while the other is secured against one wall of the recess. A spring 12 acts on the flange 10 to cause the inner portion 2 to grip the drum, and the outer portion is provided with a number of radial stops 13. When the drum is rotating clockwise and an abutment is moved into the path of one of the stops 13, the inner portion 2 will tend to become more closely wrapped upon the drum, and in the reverse direction of rotation, the tendency will be for the inner portion to become unwrapped exerting a lesser braking effort. Since the force is transmitted to the inner portion 2 always at the point 11 the braking effort is constant whichever abutment 13 is arrested. To guide the outer portion upon the inner portion, slots and pins 14, 15 may be provided. A brako lining 3 is secured to the inner portion by rivets 4 and to facilitate mounting, the outer portion is split and the ends 5 connected by a rivet or screw 6. In a modification, the inner band is adapted to grip the drum 7 by its own resiliency and secured to the outer portion by a stud. Instead of securing the two portions of the band together, means such as an abutment may be provided for limiting relative movement between them.
Patent GB-615430-A (GB)
Title: Improvements in and relating to the manufacture of photographic silver halide emulsions
IPC: G03C1/28
Filed: 1945-09-24
Abstract: a -Carbamylmercapto fatty acid arylides (including the aryl-substituted fatty acid arylides) are prepared by reacting a -bromo-fatty acids with an aromatic amine and KSCN.  a -Carbamylmercapto-n-butyl-a -naphthylamide is prepared by reacting a -bromo-n-butyric acid with a -naphthylamine and KSCN. a -Carbamylmercapto - propionyl - p - toluidide, a  - carbamylmercapto-iso-valeryl-p-chloranilide, a -carbamylmercapto - iso - butyl - p - toluidide, a  - carbamylmercapto - diphenylacet - p - chloranilide, and a  - carbamylmercapto - phenylacet - p - chloranilide are similarly prepared.  a -Mercapto-fatty acid arylides (including the aryl-substituted fatty acid arylides) are prepared by reacting the corresponding a -carbamylmercapto-fatty acid arylides with ammonia. a -Mercapto-n-butyryl-a -naphthylamide, a -mercapto-propionyl-p-toluidide, a -mercapto-iso - valeryl - p - chloranilide, a  - mercapto - iso - butyryl-p-toluidide, a -mercapto-diphenylacet-p-chloranilide, and a  - mercapto - phenylacet - p - chloranilide are so prepared.
Patent GB-1034803-A (GB)
Title: Improvements in or relating to hosiery footwear
IPC: D04B9/46
Filed: 1961-07-08
Abstract: In a stocking or the like made substantially wholly by rotary knitting from thermoplastic yarn, the heel part and, if desired, the sole contains tuck stitches which are more centrated than any that may be formed in the instep fabric and the stocking is completed by joining the blank across the foot end and boarding it.  The tuck stitch fabric may comprise wales of tuck stitches alternating with wales of plain stitches or pairs of wales forming combined tuck stitches alternating with pairs of wales of plain stitches.  The toe may be reinforced in the normal way.  The stocking may be knitted on the machine described in Specification 1,034,805.
Patent GB-942094-A (GB)
Title: Differential refractometer
Inventor: MUNDAY CHARLES WALTER
IPC: G01N21/41
Filed: 1961-07-08
Abstract: 942,094. Refractometers. DISTILLERS CO. Ltd. July 5,1962 [July 8,1961],No. 24788/61. Addition to 899, 973. Heading G1A. The invention relates to a differential refractometer which is a modification of the radiation fluid analyser described in the parent Specification and similarly comprises a source of radiation 1 producing a radiant beam, means 4 for splitting the beam into two beams, means 5 for sequentially chopping the beams, a sample cell 14 containing a fluid to be tested placed in the path of one beam, a detector system to which both beams are sequentially presented, means 24 for discriminating between the signals induced by each of the beams in the detector system, means 27 for amplifying and converting each of the signals to a D. C. signal and means 28 for measuring the ratio of one of the D. C. signals with respect to the other, but in which the sample cell 14 is so placed in the said one beam that refraction occurs and means are included for changing the radiation intensity of the said one beam in a manner related to the lateral shift thereof due to the said refraction. In the embodiment shown in Fig. 1 a liquid to be tested is passed continuously through the sample cell 14 which is so placed that its entrance and exit faces presented to the beam are not at right angles to the beam, and through a reference cell 13 whose exit and entrance faces are at right angles to the other beam thus causing no refraction of that beam. Immediately in front of and behind each cell are grids 15 . . . 18 each positioned in a plane at right angles to the beams entering the cells and having parallel bars at right angles to the plane containing the lateral shift of the beam passing through the sample cell 14. The lateral shift of this beam due to a change in refractive index of the sample liquid and the grids 17 and 18, cause a change in the intensity of the radiation striking the detector 22 and the ratio of this intensity to the intensity of the radiation due to the unrefracted beam which has passed through the reference cell 13 is detected and recorded in the same manner as in the parent Specification, the ratio of the D. C. signals being displayed on a chart record; any change in this ratio is a direct measure of the change in refractive index of the sample liquid. In a further embodiment (Fig. 2 not shown) to compensate for ambient temperature fluctuations only one cell has the sample liquid passing through it and both cells are inclined so as to cause refraction of their emergent beams. In a preferred embodiment shown in Fig. 3'the sample cell 14 consists of an outer portion and inner wedge-shaped portion. The sample liquid is passed through the outer portion and also through the reference cell 13. By selecting dimensions such that the path length of the beam through the reference cell contents is the same as that of the beam through the sample liquid in the sample cell, compensation for changes in ambient temperature and absorption or scatter of radiation by the sample liquid is afforded.
Patent GB-773287-A (GB)
Title: Photographic objective shutter with swinging blades
Inventor: NOACK ROLF
IPC: G03B9/22
Filed: 1955-08-30
Abstract: 773,287. Photographic shutters. VEB ZIESS IKON DRESDEN. Aug. 30, 1955, No. 24830/55. Class 98(1) A photographic shutter has a number of blades pivoted on a spring-urged blade ring which rotates to open and close the ,shutter by rotation of the blades in one direction and has a spring-urged control ring, which may co-operate with retarding means, which can actuate by means of a cam surface two pawls controlling the movement of the blade ring. As shown, the control ring 2 and the blade ring 3 are urged counterclockwise by the springs 4 and 5 respectively, and the blade ring 3 has a projection 19 co-operating successively with the spring-urged pawls 6, 7. In setting, the ring 2 is rotated clockwise by the arm 15 until the projection 18 is engaged by the latch 14, and the pin 16 on the ring 2 engages the projection 17 on the ring 3 to rotate it clockwise until the pawl 6 falls behind the projection 19. The retarding member 9 is urged by the spring 22 into the path of the ring 2. In the position shown, the hook 10 on the ring 2 can engage with the hook wheel 11 of the delay-action mechanism for selfportraiture, but clockwise movement of the arm 21 causes the cam surface 12' to engage the lug 23 on the hook 10 to prevent the hook 10 from engaging the hook wheel 11. Depression of the trigger 13 engages the latch 14 to free the ring 2 for counter-clockwise movement, whereon the cam surface 8 thereon raises the pawl 6 to permit the blade ring 3 to move until the projection 19 engages the pawl 7, in which position the shutter blades are in open position. The further movement of the ring 2, retarded by the engagement of the lug 24 with the retarding means 9, permits the cam surface 8 to strike the lug 27 of the lever 31 to remove the end face 32 from engagement with the nose. 33 of the pawl 7, which pivots under the control of the escapement 30 (the pawl 7 being formed as a toothed segment), to permit the ring 3 to move on to close the shutter. For very short exposures, the time-setting member is moved to bring the cam surface 26 under the lug 27 and tilt the lever 31 so that the pawl 7 is free to move immediately, while for an even shorter exposure, the cam surface 2b is brought under the lug 27 to tilt the lever 31 so far that the push member 34 strikes the edge 35 of the pawl 7 to move it out of the path of the projection 19, so that the movement of the blade ring is not arrested at all.
Patent GB-477713-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/06
Filed: 1936-09-11
Abstract: 477,713. Gas burners. MAIN, Ltd., R. & A., and WORTLEY, G. W. Sept. 11, 1936, 24831. [Class 75 (i)] In a gas burner having an outlet slit encircling the head, the appropriate length of the slit for a required heating capacity is provided in a head having a comparatively small periphery by arranging the slit to follow a tortuous path around the head. As shown, the slit 14 is formed between serrated conical faces 15, 16 of an annular member 12 and a solid cover 13 secured by a bolt 19 to the body 10. Three equidistant rounded or conical projections on the face 12 engage recesses 18 on the face 16 for spacing, and preventing relative rotation of, the parts 12, 13. The slit extends inwardly and downwardly through the head at an angle of between 30‹ and 45‹ to the vertical. The upturned end 11 of the body 10 is located in a recess or channel in the member 12. Dimensions of a head are given.