baber/WOPTO huggingface dataset:
Patent GB-766590-A (GB)
Title: "carbon monoxide indicator"
IPC: G01N25/32
Filed: 1954-07-27
Abstract: <PICT:0766590/III/1> <PICT:0766590/III/2> Apparatus for measuring the carbon monoxide concentration in a gas comprises means for continuously passing samples of the gas through a tube containing a thermistor-catalyst, whereby the carbon monoxide is oxidized to produce a rise in temperature which is measured by the change in resistance of the thermistor.  As shown (Fig. 1) a sample of the gas is forced by a pump 28 into the lower compartment 12 of a reservoir 10, driving a quantity of water, normally filling this part 12, into an upper compartment 14, whereby a float 20 rises until at a predetermined level, a float switch arm 52 operates microswitches 46, 48, 50 to stop the pump 28, close valve 26, and open valve 44 and the first valve 38, whereby the gas sample is forced through the first thermistor-catalyst reaction tube 36, the consequent change in resistance of the thermistor being measured in a self-balancing bridge circuit (Fig. 8, not shown), to which the thermistor is connected after a short delay, when a steady state condition has been reached.  The relative humidity of the gas sample is maintained at 50-70 per cent by causing the gas to flow through a tube 40 containing glass wool moistened with a saturated solution of calcium nitrate.  When the water in chamber 14 reaches a predetermined lower level the float 20 again operates the micro-switches to repeat the measuring cycle using the next reaction tube 36 of the bank 34. Thermistor-catalyst reaction tube construction (Fig. 6) A glass tube 60 contains a sensing thermistor 66 and a balancing thermistor 68, held in position by stainless steel clamps 70, and connected to contact rings 62, 63, 64 at the lower end.  The sensing thermistor 66 is in a catalyst chamber 72 containing granules of silver permanganate retained by end cups 74, 76.  The two thermistors 66, 68 are initially balanced.  A bank of six reaction tubes are supported in an insulating block provided with the appropriate contact devices for contact rings 62, 63, 64 and suitable pipe connections to the top and bottom of the tubes for the gas flow.
Patent GB-479846-A (GB)
Title: Improvements in or relating to optical sound recording systems
IPC: G11B7/00
Filed: 1936-08-10
Abstract: 479,846. Optical sound recording process and apparatus. KLANGFILM GES. Aug. 10, 1936, Nos. 22028 and 22029. Convention dates, Sept. 12, 1935 and Oct. 22, 1935. [Class 40 (ii)] In a process for supervising the recording of sound on a film, the recording-apparatus is arranged to control two different beams of light emanating from a single light source, one beam serving for the sound recording and the other for supervising the sound recording. With such an arrangement the quantity of the supervising light may be made greater than that serving for the sound recording. As shown, light from a lamp 10 passes through a lens 11 and through two different paths through apertures B<1>, B2 in a screen B. The two beams then pass through a lens 12 on to a mirror 13 vibrated in accordance with the sound currents. Aperture B<1> is of rectangular shape whilst the aperture B2 has one edge vertical and the opposite edge of serrated or toothed formation. The beams are reflected by the mirror on to a second screen A-A, the image of the aperture B2 being moved across a slot 20 therein, the light passing through this slot falling on a film to produce the sound record ; whilst the image of aperture B<1> is moved across the edge K of this second screen, the light passing this edge falling on a monitoring photo-cell. The edge K is preferably inclined in relation. to the image B<1> to an extent corresponding to the width of the slot 20. In order to prevent any stray light from the monitoring light beam which may reach the path of the recording light beam producing distortion, the monitoring light is preferably arranged to embrace a spectral range which is photographically not, or only slightly, effective with the film emulsion used. Thus red light or infra red light would be used with the usual film emulsions whilst with panchromatic films a green light would be used. The colour of the light is obtained by inserting a corresponding filter in the path of the monitoring light. A monitoring photo-cell is also preferably selected which is particularly sensitive to the particular light employed, e.g. with a red light a cell having a layer of caesium or caesium oxide is preferably used. When the invention is used in an anti-ground noise recording system, an anti-ground noise shutter or shutters is or are arranged to control the monitoring light and the recording light to the same extent, Fig. 4 (not shown). According to a modification, Fig. 5 (not shown), the screen A-A is dispensed with and a prism is arranged to reflect the monitoring light beam on to the photo-cell.
Patent GB-310247-A (GB)
Title: Improvements in motor blocks for motor-cycles, motor-cars and the like
IPC: F02B75/02
Filed: 1928-07-30
Abstract: 310,247. Geert, M. J. P. van. July 30, 1928. Driving-gear.-Two rows of two or more cylinders in each row drive on to independent crank shafts 1, 2; the cylinders may be vertical or inclined as shown. The two shafts drive, through a two to one gear, the shaft 9, which is the main shaft of a, change-speed gear 1; this gear is housed in the casing on which the cylinders are mounted.
Patent GB-1510333-A (GB)
Title: Colour image reproduction system
IPC: G03B33/00
Filed: 1975-05-22
Abstract: 1510333 Colour image reproduction; controlling light XEROX CORP 22 May 1975 [20 Sept 1974]  22039/75 Headings G2F and G2J A colour image reproduction system is described and claimed in which there are recorded at different angular orientations on an imaging member 10 at least two images respectively corresponding to the colour content of at least two different colours of a multicolour original image. Readout illumination, provided by extended light source 30 is converted (e.g. by mask 36) to a plurality of point sources and deflected to the imaging member 10 by a combined filter/reflector element 42 which comprises a transparent substrate 44 carrying a plurality of mirrored areas 46. The information-modulated illumination is then reflected through appropriate light filters in element 42 to provide a reproduction of the original at the output plane 52. The imaging member 10 may be as shown in Fig. 2 comprising a 3-colour diffraction grating 22, index matching liquid 26, fibre optic plate 28, transparent conductive layer 12, photo-conductive insulating layer 16, deformable elastomer layer 18, flexible metallic layer 14 and A.C./D.C. source 20. Layer 18 may be of Piezo-electric material. Frost or relief imaging members may also be used. In a transmission version of the system, Fig.6 (not shown), the functions of the mask 38 and filter/reflector 42 of Fig.1 are combined in a single element 54. Filters. The 3-colour grating 22 of Fig.2 is made up of vertical stripes 23a of magenta, horizontal stripes 23b of cyan and 45 degree stripes 23c of yellow. The stripes are provided on a transparent substrate 34 and have a periodicity of 40-100 1p/mm. Alternatively, Fig.3 (not shown), three separate fibre optic plates each carry a set of differently coloured stripes e.g. formed in photo-resist. The filter 42 of Fig.1 may be as shown in Fig.5 in which there are provided red strips 48a, green strips 48b, blue strips 48c and mirrored areas 46 corresponding to the apertures in mask 36.  Fibre-optic plate 28 may be electrically insulating or conductive,  inch thick and contain fibres of  3-20 Ám average diameter. The fibres may be rodlike, thread-like or conical and clad with absorbing or non-absorbing material. The plate may transmit U.V. and near I.R. Specification 1510332 is referred to.
Patent GB-1282848-A (GB)
Title: Cross wedge rolling tool
Inventor: HENCL VLADIMIR
IPC: B21H1/18
Filed: 1971-04-19
Abstract: 1282848 Making rolling tools VYZKUMNY USTAV TVARECICH STROJU A TECHNOLOGIE TVARENI 19 April 1971 [19 Feb 1970] 22086/71 Headings B3A and B3M In a method of making a tool for use in crosswedge rolling, a plurality of blades 1a are secured by welding, brazing &c., to a longitudinally extending base-plate 1b which is in the form of a V-shaped flat plate. Each blade is of substantially equal contour and each blade is positioned off-set with respect to the next and is welded to the base-plate to form two converging lines constituting a wedge formation, a single starting wedge portion 2d being located at the region of convergence of the two lines of blades. The base member is then bent longitudinally around a former 3 and secured thereto for subsequent attachment to a roll in a rolling machine. The wedge-shaped radial space between the blades produced by the bending of the base-plate may be filled completely or partly by low melting point metal, metal ceramic powder which can be sintered or by magnetic powder
Patent GB-652545-A (GB)
Title: Improvements in the heat treatment of textile materials
IPC: D06C15/10
Filed: 1948-08-24
Abstract: Textiles are heat-setted by continuously passing the material through a heating zone and continuously directing high velocity heating gas current of predetermined heat-setting temperature for said material on to the same while travelling through said heating zone and over a length of travel of said material in said heating zone to expose each portion thereof to said heating gas current for 1 to 10 seconds.  The heating gas current may be directed on to said material at a velocity of an order of magnitude in excess of 400 feet per minute <PICT:0652545/IV (c)/1> <PICT:0652545/IV (c)/2> while at a predetermined heat-setting temperature of 300-500 DEG  F. A device for carrying out the process comprises two rolls 1 and 2 within a housing 3 within which is mounted a branched housing 4 which extends into curved branches 5 and 5a.  The inner surfaces 6 and 6a of the ducts 5 and 5a define a heating space above the corresponding surface portions of the rolls 1 and 2 and carry the nozzles 7 and 7a extending longitudinally of the surfaces of these respective rolls. A fan 15 is utilized to force air heated by burners 24 through the open neck 18 and through the nozzle openings 7, 7a, 8 and 8a on to the fabric web 71.
Patent GB-1302826-A (GB)
IPC: H01J35/24
Filed: 1971-04-19
Abstract: 1302826 X-ray tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [25 Feb 1970] 22298/71 Heading H1D An X-ray tube comprises a pair of adjacent evacuated envelopes 2, 3 in which are secured respectively an anode 4 and a cathode 5 and which communicate through a deformable coupling tube 10 through which an electron beam 11 passes, means being provided for displacing the envelopes and hence the electrodes relative to one another to adjust the position of the area of impact of the electron beam on a target 13, in such a way that only the coupling tube is deformed. The anode and cathode are mounted respectively on insulators 6, 7 which are secured to their respective envelopes. The coupling tube may be of a bellows formation and may be in two halves 10a, 10b which are welded together. The envelopes are surrounded by a casing 1 provided with an X-ray window 14.
Patent GB-1386516-A (GB)
Title: Latex compositions
IPC: C08L23/08
Filed: 1972-05-12
Abstract: 1386516 Polymer latex composition UNION CARBIDE CORP 12 May 1972 [13 May 1971] 22307/72 Heading C3P A polymer latex composition for use as a coating composition, mastic, sealant &c. comprises a latex of an alkyl acrylate copolymer having dispersed therein a monovalent secondary or tertiary amine salt of a copolymer of ethylene and acrylic acid containing 14 to 54% by wt. acrylic acid and having a melt index of 0.1 to 1000 decigrams per minute, determined at 190‹ C. The acrylate copolymer preferably contains at least 50 wt. per cent of an alkyl acrylate, e.g. ethyl acrylate, together with one or more comonomers, acrylonitrile, N-methylol acrylamide, acrylic acid, itaconic acid, styrene, glycidyl acrylate, methyl methacrylate and methacrylic acid being exemplified. The composition may also contain thickeners and fillers, e.g. SiO 2 , TiO 2 , mica, asbestos, CaCO 3  or clay; surfactants and dispersants, e.g. sodium polyphosphates; fire-retardants, e.g. Sb 2 O 3  and a chlorine compound; anti-foamers; plasticizers and solvating media, e.g. tricresyl phosphate or tri(butoxyethyl) phosphate; biocides, e.g. phenyl mercury acetate; and waxes, e.g. chlorinated hydrocarbon wax or carnauba wax dispersed with a fatty acid and an amine.
Patent GB-1490619-A (GB)
Title: Solvent-refining of coal
IPC: C10G1/06
Filed: 1975-05-22
Abstract: 1490619 Hydroliquefaction of coal SOUTH AFRICAN COAL OIL & GAS CORP Ltd 22 May 1975 [24 May 1974] 22330/75 Heading C5E In a process for the production of solventrefined coal by heating a slurry of the coal in a solvent (e.g. creosote or anthracene oil) having hydrogen transfer characteristics at a hydrogen partial pressure of several times atmospheric pressure, the heating temperature and hydrogen partial pressure are controlled so that a rate of free radical formation which exceeds the rate of radical hydrogenation is maintaned for a period of time such that up to 9% by weight of the liquefiable matter of the coal is chemically combined with the formation of larger non- dissolved solid particles which facilitate the separation (e.g. filtration) of non-dissolved solids from the solution. The chemical combination can be achieved by one or more of:- (a) carrying out a first portion of the heating with less hydrogen than that required to prevent the free radicals combining and thereafter increasing the amount of hydrogen, (b) carrying out the process under a hydrogen partial pressure which is less than the predetermined partial pressure necessary for maximum extraction, (c) carrying out the process with controlled localized high temperature zones, e.g. adjacent heating surfaces, and (d) post-heating the digested slurry, e.g. in a tube furnace.
Patent GB-225183-A (GB)
Title: Improvements in driving means for auxiliary machines on condensing steam locomotives
IPC: B61C1/00
Filed: 1924-09-22
Abstract: 225,183. Boltshauser, H. Nov. 22, 1923, [Convention date]. Automatic control. -In a condensing locomotive in which at least one auxiliary prime mover drives at least one auxiliary machine, means are provided for automatically cutting out the auxiliary prime mover and driving the auxiliary machine from the main prime mover when the locomotive exceeds a certain predetermined speed, the reverse process being carried out when the speed falls again. Auxiliary pumps 4 - - 7 are driven by a shaft 15 which can be connected by a clutch 16 either to an auxiliary turbine' 1 or to the locomotive axle 11. The clutch 16 is controlled by a centrifugal governor 14 which is driven from the axle 11 and also operates the valve 2 of the turbine 1. Each auxiliary machine may be driven separately or in groups by separate prime movers and from separate moving parts of the transmission mechanism between the main prime mover and the axles.
Patent GB-1523834-A (GB)
Title: Games racket
IPC: A63B59/04
Filed: 1976-05-28
Abstract: 1523834 Bats DARSPEMAR Ltd 28 May 1976 [28 May 1975] 22367/76 Heading A6D A bat including its handle 2 is formed of a single piece of sheet material, e.g. plywood, cut to the general form of the outline shown.
Patent GB-1578213-A (GB)
Title: Coin storage device
IPC: G07F1/04
Filed: 1978-05-25
Abstract: The device has a blocking pin (7) which projects into the coin channel (2) and which prevents the coins (8) from falling further. Connected to the blocking pin (7) is a lever (10) which, at its end, carries an inclined plate (11) which likewise projects into the coin channel. By means of an electromagnet (6) acting on the blocking pin, the coin channel can be opened briefly. During an energisation time of the electromagnet (6) which is shorter than the falling time of the coin (8), the latter is deflected by the plate (11) into a return channel, whereas it is collected in the event of a longer energisation time. The two functions of storage and diversion can thereby be controlled with low energy consumption by means of a single electromagnet. If the collecting device is used in a coin-operated telephone, the electromagnet (6) is fed from the telephone loop. <IMAGE>
Patent GB-1202352-A (GB)
Title: Improvements relating to joints for tubular structures
Inventor: PACKMAN PERCIVAL JAMES
IPC: E04B1/58
Filed: 1966-05-19
Abstract: 1,202,352. Connecting structural tubes. STEWARTS & LLOYDS Ltd. 21 Aug., 1967 [19 May, 1966], No. 22387/66. Heading E1K. [Also in Division F2] The ends of tubular members having axes passing substantially through a common point and which are connected to a jointing member in a space structure, are each located by a projecting stud welded to and located by a hole in the surface of the jointing member. In the embodiments of Fig. 2 (not shown) and Fig. 1, studs 30 each located by a dowel portion 31 engaging a hole 18 in the connector 1 and welded to the connector at 32 serve to locate the ends of the tubes 20, 21, 22 which are welded either directly to the connector 1 as at 35, or as in Fig. 2 are welded to the stud. which diverges to a reduced section at which the stud is welded to the connector. In the embodiments of Fig. 3 (not shown) and Fig. 4 the stud 46 terminates at a clamping flange 50 with a frusto-conical .surface which co-operates with a clamp 55 and with a similar clamping flange on a fitting 65 adjustably screw threaded into the tube 69 or welded to the tube as in Fig. 3.
Patent GB-170811-A (GB)
Title: An improved clip for neckties and the like
IPC: A44B6/00
Filed: 1920-10-01
Abstract: 170,811. Stevens, W. H. Oct. 1, 1920. Clips, sheet-metal.-A clip for neck-ties &c. is formed from a sheet-metal blank having a tongue 9 stamped therefrom bent near its root at 14, saw-tooth portions at the forward end of the tongue and at the inner edge of the frame, indicated at 11, being reversely bent to form oppositely projecting and alternately-disposed teeth 12, 13. In use, the clip is held with the thumb under the bend and with two fingers above the respective side pieces 5, 6, pressure upon the frame and tongue in opposite directions bringing the parts to the position shown in Fig. 3, so that the neck-tie may be slipped between the frame and tongue as shown.
Patent GB-649669-A (GB)
Title: An improvement in or relating to machines for rigging, measuring and plaiting textile fabrics
IPC: D05B35/00
Filed: 1948-08-28
Abstract: 649,669. Folding fabrics. SELLERS & CO. (HUDDERSFIELD), Ltd., and SELLERS, E. R. Aug. 26, 1948, No. 22480. [Class 42 (ii)] A machine for rigging, measuring and plaiting textile fabrics, in which the material is folded longitudinally, comprises a centrally-pivoted detector member d which, if either edge of the longitudinally-folded fabric tends to run out of alignment, is caused to close a circuit through the coil of one or the other of two electromagnets e, e<SP>1</SP> between which and fast on a spindle f carrying a gear-wheel i are two bevel discs g, g<SP>1</SP>. One or the other of discs g, g<SP>1</SP> according to which magnet coil is energized, is attracted towards the adjacent magnet and thereby carries the other disc into contact with a constantly-rotated friction disc h located between the discs g, g<SP>1</SP>, the resultant rotary movement of spindle f in one direction or the other being utilized to move the guide bars c, between which the folds b of the fabric pass, in the appropriate direction to restore the correct run of the fabric. As shown, movement is transmitted from spindle f to bars c by gears i, j, pinion m and rack n.
Patent GB-798803-A (GB)
Title: Improvements in or relating to automatic telephone exchanges providing automatic transfer service
IPC: H04M3/54
Filed: 1956-07-20
Abstract: 798,803. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. July 20, 1956 [July 20, 1955], No. 22555/56. Addition to 798,749. Drawings to Specification. Class 40 (4). In the system described in the parent Specification, facilities are provided for making calls to a station from which calls are normally diverted. In the main register, a further relay is provided to respond to the prefix 08. When operated, the relay disables the transfer circuit and the call proceeds normally.
Patent GB-1323622-A (GB)
Title: Fermentation of fermentable substrates
IPC: C12G1/036
Filed: 1971-04-19
Abstract: 1323622 Decanting apparatus DONNBACCHUS Ltd 19 April 1971 [2 Oct 1970] 22570/71 Heading B1D [Also in Division C6] An apparatus for fermenting, settling and decanting fermented beverages comprises a collapsible sack 10 contained within a rigid support structure 12 and having an opening 14 which may be closed or connected to an air-lock 22 by means of tap 16. When fermentation is complete the container is turned on one side so that sediments may settle and the clear beverage may be decanted off via tap 16.
Patent GB-877901-A (GB)
Title: Improvements relating to electrodes and uses thereof
Inventor: COTTON JOSEPH BERNARD
IPC: D06M23/00
Filed: 1957-07-17
Abstract: An electrode for use in electrolysis comprises a support having a surface of titanium or titanium alloy which is wholly or partly in contact with a platinum group metal or alloy thereof.  The titanium surface may comprise a solid body of the metal e.g. a rod of pure Ti or Ti alloyed with 5% Zr, or may have an inner core of a metal of lower electrical resistance e.g. Cu or Al, in the form of a rod, strip or tube.  The platinum group metal includes the pure metals, Pd, Pt, Os, Ru, Rh, Ir or alloys e.g. Pt/Pd, Pt/Rh, Pt/Ir, Os/Ir. This coating may be applied by (1) electro-deposition, electro-less plating, (2) by applying sheet, wire, or foil by spot welding, riveting, or bolting on, (3) rolling on Pt in powder form, (4) drawing Ti wire through an all-Pt die, or a die with Pt inserts to provide a discontinuous coating, and (5) spark transfer, sputtering and evaporating.  A final coating of Pd or Pt black may be applied to the smooth Pt coating.  A coating of about 0.0001 inch is suitable. The electrode may be formed into a mesh or grill.  The titanium surface is preferably pre-etched with couc. HC1 as described in Specification 758,013.
Patent GB-1167057-A (GB)
Title: Improvements in Electric Circuit Breakers with Electromagnetic Means for Opposing Contact-Repulsion Forces.
IPC: H01H33/666
Filed: 1967-05-16
Abstract: 1,167,057. Automatic circuit - breakers; vacuum switches. GENERAL ELECTRIC CO. 16 May, 1967 [16 June, 1966], No. 22643/67. Heading H1N. A circuit-breaker has a rigid movable conductor 20 connected to a moving contact 12 and a rigid movable member 40 for developing a magnetic closing force on the conductor which varies in dependence on the square of the current through the contacts 11, 12. In the arrangement shown, the rotation of a cam 70 straightens a toggle 52, 54 and moves the magnetic member 40 upwards until it engages and releases a latch 28. A spring 24 now causes the anticlockwise motion of the conductor 20 to close the contacts 11, 12. As the contacts close, current flowing through the conductor 20 creates a flux through the member 40 which then provides a closing force acting on the conductor 20. The circuit-breaker may be tripped open under overload conditions on the energization of an electromagnet 64 to release a latch 62. The circuit-breaker is opened by a spring 48 which moves the member 40 until it strikes and then moves the conductor 20. In a modified arrangement, Fig. 5 (not shown), the member 40 is replaced by a further conductor connected in series with, and arranged below, the conductor 20. The current flows in opposite directions in the two conductors so that the force of repulsion between them provides a closing force. In another embodiment, Fig. 4 (not shown), the latch 28 and the spring 24 are replaced by an overcentre spring toggle. The contact assembly may be provided by a vacuum switch as shown.