baber/WOPTO huggingface dataset:
Patent GB-448232-A (GB)
Title: Improvement in charge forming devices for internal combustion engines
IPC: F02M7/22
Filed: 1935-12-28
Abstract: 448,232. Vaporizers. AKTIEBOLAGET WEIERTZ PATENTER, 17, Roslagsgatan, Stockholm. Dec. 28, 1935, No. 35928. Convention date, Dec. 29, 1934. [Class 7 (iii)] In a charge-forming device in which exhaust gases heat the fuel before air is mixed therewith and fuel and air control valves are operated simultaneously through a control mechanism associated with a dashpot adapted to retard the closing of the air valve relatively to the fuel valve, as described in Specification 429,421, the vaporizer consists of a hollow body 9 secured on the inside of a cover 4 for an opening in the side of a housing 1 connected to the exhaust pipe. A flap valve 8 controls the portion of the exhaust gases which flow past the vaporizer and a small portion of the gases enter a curved channel 10 to vaporize fuel supplied through an annular nozzle 41 between a valve seat 34 and the body of the vaporizer, the amount being controlled by a valve 47 formed with a cylindrical extension 47a which confines the gases to an annular channel opening immediately behind the fuel nozzle. A helical rib 53 in the channel 10 throws drops of fuel against the hot wall of the channel which opens into an inlet 14a in a housing 14 comprising a mixing chamber to which air is fed past a valve 16. Apertures 97 in a cone 95 in the inlet communicate with a vacuum tank from which fuel is supplied to a nipple 27, Fig. 3, secured to a fuel valve housing 25. An air chamber 32 above the fuel inlet pipe 31 to the nipple ensures adequate fuel for acceleration. The nipple 27 leads to a passage 26 communicating with a seat 33 for a valve 37 controlling a passage 38 leading by bifurcated passages 40 to the fuel nozzle 41. The valve 37 is opened against a spring 72 by a lever 70 actuated by an eccentric 68 on a shaft 56 which carries rigidly arms 57, 57a and loosely an arm 58. A control rod 60 actuates the arm 57 to open the valve and an abutment 61 on the arm limits the clockwise movement of the arm 58 which is connected by an arm 59, link 63 and arm 62 to the spindle 15 of the air valve 16 which is urged to close by a spring 88. When the abutment 61 is moved to permit such closure, a piston 75, the rod 74 of which is connected to the arm 58 moves downwards in a dashpot 76 forcing the liquid beneath it through restricted orifices 82, 83 which are superposed to retard the motion more towards the end of the stroke of the piston. As the fuel valve 37 reaches its closed position, the second arm 57a on the shaft 56 engages a roller 65 or a lever 66 to rotate a shaft 51 rigid with an arm 50 supporting the valve 47 in the housing 1, and the valve closes the channel 10 to the exhaust gases. The mixing chamber leads by a curved conduit 14<c>, and tube 22 to a branch member 18 in the induction pipe, the lower end of the member being connected to a petrol carburetter for starting. A stop 91 may be manually brought into the path of the arm 57 to permit idling on the heavy fuel.
Patent GB-1524077-A (GB)
Title: Crosslinkable rubber mixture
IPC: C08L21/00
Filed: 1975-09-02
Abstract: 1524077 Rubber mixtures comprising organo silanes DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT 2 Sept 1975 [18 Aug 1975] 36074/75 Heading C3K A crosslinkable rubber mixture, which does not contain elemental sulphur and when polychlorobutadiene is present does not contain zinc oxide or magnesium oxide, comprises at least one silica or silicate filler and at least one organosilane of formula in which each Z represents a group of formula in which radicals R<1> and R<2> in the same compound may be the same or different and R<1> represents a C1 to C4-alkyl group, C5 to C8- cycloalkyl group or a phenyl radical, R<2> represents a C1 to C4-alkoxy group, C5 to C8-cycloalkoxy group or a phenoxy group, Alk represents a divalent straight-chain, branched chain or cyclic hydrocarbon radical with 1 to 8 carbon atoms, and x is a number from 2À0 to 6À0, Examples are given in which the organosilane is bis(3-triethoxysilylpropyl)-tetrasulphide or bis- (3-trimethoxysilylpropyl)- tri- or di-sulphide. The filler may comprise a blend of carbon black with silica.
Patent GB-431905-A (GB)
Title: Improvements in and relating to precision drilling and like machines
IPC: B23Q17/22
Filed: 1934-12-17
Abstract: 431,905. Drilling; gauging-devices. LINDNER, H., 9, Lubarser Strasse, Wittenau, Berlin. Dec. 17, 1934, No. 36173. Convention date, May 9. [Class 83 (iii)] In setting the carriage of a machine tool such as the table of a precision drilling machine, a member which is independent of the table is displaced accurately by the required amount and the table is then displaced to cause a mark thereon to coincide with a mark on the member. The member 10 consists of a slide movable in guides 9 parallel to the guides 2, 3 for the machine table 1 by means of a screw 11. Coarse adjustment of the member 10 is effected by a hand wheel 14 and a linear scale 16 and fine adjustment by a hand wheel 15 acting through a worm gear on the screw 11 and a cylindrical scale and vernier 18 reading in thousandths of a millimeter. When the member 10 has been displaced to the required position, the table 1 is moved to a corresponding position by means of a screw 6 operated by a hand wheel 7 and fine adjustment hand wheel 8 acting through a worm gear, a microscope 17 being provided on the table to read an indication mark 10<a> on the member 10. Alternatively, the mark may be on the table and the microscope on the member 10. The screw 6 may be of ordinary construction or may be replaced by other mechanism, but the screw 11 is of high accuracy and is ground and polished and may be provided with correcting devices, whilst the slide 10 is constructed as a split nut in order to reduce play on the screw.
Patent GB-362249-A (GB)
Abstract: 362,249. Hair - - waving appliances. KALLMANN, S., 7, Rue des Pyramides, Paris. Feb. 18, 1931, No. 5137. Convention date, April 10, 1930. [Class 131.] An electric heating sleeve 1 for use in hair waving is surrounded by a heat insulating device comprising a series of blades 5 which are detachably mounted in the flanges 2, 3 of the sleeve and are of such a length that they assume an outwardly curved disposition relatively to the sleeve, thus permitting the circulation of air between the sleeve and the blades. The blades are provided at the ends with tenons which engage in holes in the flanges. In a modification, the sleeve is provided with a longitudinal gap through which the curler 11 can be introduced laterally, instead of axially as in the Figure.
Patent GB-1281621-A (GB)
Title: Improvements in or relating to chucks for machine tools
Inventor: FORKARDT PAUL
IPC: B23B31/177
Filed: 1970-07-28
Abstract: 1281621 Chucks P FORKARDT 28 July 1970 [9 Aug 1969] 36370/70 Heading B3B In a chuck of the kind having a body 1 with movable jaws 2 each actuated by co-operating oblique splines 2b, 7a on a jaw and respective slide member 7, the members 7 being actuated by a plunger 6 displaceable axially in the chuck body, means is provided to permit rapid radial adjustment of the jaws to suit different diameter workpieces. The means comprises bolts 10 which engage in radial slots 2d in each respective jaw, whereby, when the plunger 6 displaces the slide member 7 to an extremeposition, the splines 7a are disengaged from the jaw splines 2b, the jaws are displaceable radially outwardly by centrifugal force until the bolts 10 engage the end of the slots 2d. The jaws are then displaceable radially inwardly by a roller member on the machine tool to an appropriate diameter of the work to be gripped whereat the splines are reengaged by actuation of the plunger 6 to grip the workpiece in the jaws.
Patent GB-941072-A (GB)
Title: Improvements in or relating to seats upon aircraft
Inventor: BASNETT JAMES THOMAS
IPC: B64D11/06
Filed: 1960-10-24
Abstract: 941,072. Inflatable cushions. G. Q. PARACHUTE CO. Ltd. Jan. 23, 1962 [Oct. 24, 1960], No. 36401/60. Heading A4M. An inflatable aircraft seat cushion 1 is such that the whole of its top is raised on inflation, the rear portion being raised more than and above the front edge of the top thereby to assist the occupant to a standing position. The cushion is inflated from a gas bottle by manual operation of a handle 6 and lanyard 7. The inflatable bladder 2 includes a pressure relief valve 8 and is secured at its corners to a flexible cover 3 having a closable access aperture 4 and an eyelet strap 9 for fixing to a seat.
Patent GB-934256-A (GB)
Title: Improvements in the manufacture of bread dough
Inventor: BAKER DAVID KING
IPC: A21C1/06
Filed: 1959-10-27
Abstract: 934,256. Continuous discharge mixers. BAKER PERKINS HOLDINGS Ltd. Oct. 21, 1960 [Oct. 27, 1959], No. 36429/59. Class 86. [Also in Group VI] A mixing chamber 10, Fig. 2, for fermented dough ingredients (see Group VI) has a jacket 11, supplied by a motor-driven pump with water from a refrigerated tank at a rate indicated by a flowmeter. The mixing chamber stirring mechanism is driven by a motor 17 via variable-speed gearing 18 (see Fig. 1, not shown), which through chain gearing 66, 65, 64, Fig. 2, rotates chamber ends 55 carrying rigidly a bar 60 and rotatably a worm 62 having three bars 63, the worm being rotated in the same direction as the ends 55 by gears 68 fast on its shaft and meshing stationary gears 69. The bars 60, 63 coact to stretch the chamber contents C, Fig. 3, as indicated at D. The chamber 10 has an inlet 56 supplied by a worm 19 and an inlet 57 for liquid ingredients, developed dough being discharged cyclically by the worm boss 70 through an outlet controlled by a pivoted door 58, Fig. 4, held open to a suitable amount by a hand wheel 59. Specification 729,981 is referred to.
Patent GB-177852-A (GB)
Title: An improved device for controlling carburettors
IPC: F02M7/22
Filed: 1920-12-30
Abstract: 177,852. Warner, W. D. Dec. 30, 1920. Controlling different functions by same handle or lever.-The fuel needle-valve 3 and the air valve of a spray carburettor are independently or simultaneously operated from a common handle 28 through a slip joint and a universal joint. The head 2 of the fuel valve 3 is engaged by a fork 1 the shank of which extends through an angle bracket 5 on the dash-board 6 and terminates in one member 7 of a universal joint; the other member 12 of the joint is carried by an operating- rod 11 provided with a flat 13, Fig. 4, engaging a corresponding flat 16 on an operating rod 15 attached to the handle 28. The rod 15 is secured by a pin 18 to a sleeve 17 surrounded by a casing 19 carrying a link 21 which is connected to the air valve through a bell-crank lever 22, a rod 24, and one arm 25 of a bell-crank lever; the air valve may be operated also by the usual rod 27 attached to the other arm 26 of the bell-crank lever. The handle 28, which is provided with markings and with a flat 30 to facilitate cutting, is rotated to operate, the fuel valve, and pulled to operate the air valve.
Patent GB-820922-A (GB)
Title: Improvements relating to inking systems in printing machines
IPC: B41F31/18
Filed: 1957-11-25
Abstract: 820,922. Inking apparatus. MASCHINENFABRIK WINKLER, FALLERT & CO., A. G. Nov. 25, 1957 [Dec. 8, 1956], No. 36614/57. Class 100(2) Inking apparatus for printing machines comprises a plurality of feed rollers mounted so as to come in contact with ink in fountains and able to be driven by the frictional contact of projections on their surfaces with an ink transfer drum fitted with a doctor which has recesses in its frontal edge corresponding to the fronts of the ink transfer drum which do not have ink placed on them by the feed rollers. Fountains 1, Figs. 1 and 2, for each colour are arranged side-by-side, and rotatable in each on pins 4 is a feed roller 3 having circumferential projections 5 engaging an ink transfer drum 6, which rotates the feed rollers by friction. The ink film is regulated in thickness by a doctor blade 7, Figs. 1 and 3, adjustable by screws 8 and having recess 13 aligned with each colour boundary. A roll of ink. 9 formed under the blade is thus formed into annular beads 14, which are removed by strippers 15, surplus ink being returned to the fountains. The projections 5 may be helical.
Patent GB-454088-A (GB)
Title: Improvements relating to colour photography
IPC: G03C7/26
Filed: 1934-12-21
Abstract: 454,088. Colour photography. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.- Ges.; Frankfort-on-Main, Germany) Dec. 21, 1934, No. 36693. [Class 98 (ii)] A copying material for colour photography comprises a plurality of silver halide emulsion layers arranged on one or both sides of a support, one or more layers containing the dyestuffs for the finished pictures and the other layers which serve also to produce colour component pictures, , do not contain such dyestuffs or substances capable of conversion into such dyestuffs. In one example, a support is coated on one side with an emulsion coloured blue green with Chicago Blue, and on the other side with an emulsion dyed with Sirius Ruby and sensitized to red, and an uncoloured layer which is not specially colour-sensitized. After copying, the layers are developed, and the uncoloured layer is dyed by a suitable yellow solution, e.g. of Chrysophenine Yellow and the silver parts bleached out as in the process described in Specification 133,034, [Class 98 (ii)], or Specification 401,340. The layers may also be arranged on one side of the support. In another example the support is coated on one face with a red-sensitized emulsion coloured purple, and a yellowcoloured emulsion not specially colour-sensi. tized, and on the other face with an uncoloured green-sensitized emulsion. The two coloured layers are exposed behind intermediate positives while the back face is exposed behind a negative, and they are converted to the appropriate colour images by a bleaching out process and a ferrocyanide bath respectively. The green-sensitized layer may be dyed yellow as by Korallin yellow in order to obtain a gradation adapted to the other sensitive layers. Specification 395,124 also is referred to.
Patent GB-859887-A (GB)
Title: Improvements in or relating to methods of sealing mica sheets to metal
Inventor: LAMBERT DONOVAN ERNEST CHARLES
IPC: H01J19/42
Filed: 1958-11-14
Abstract: 859,887. Waveguide seals. STANDARD TELEPHONES & CABLES Ltd. Nov. 14, 1958, No. 36703/58. Class 40(8). [Also in Group XL(a)] A mica sheet is sealed to a metal surface by serrating the edge of the sheet and sealing the serrated edge to the metal by means of a glass bead. The sheet may form a sealing window for a waveguide 12 constituting the output of a velocity-modulated beam tube. The window assembly consists of a silver-plated nickel-iron cup 2 having a central depression 3 forming a frame for an aperture with parallel sides and rounded ends. The serrated edge of a mica sheet 5 of similar profile is painted with an aqueous glass paste and placed within the depression. After the paste has dried, the assembly is placed in an oven to fuse the glass which forms a hermetic seal. The window assembly is attached to the waveguide 2 by means of a short cylindrical casing 13 having a hollow stem 14 of rectangular cross-section which fits over and is soldered to the end of the waveguide. The interior surfaces of the waveguide and the casing are covered in the vicinity of the joint by thin sheets 16 of copper foil which are soldered in position. Interposed between the window and the casing is a thin disc 18 of goldplated phosphor-bronze having a central aperture the rim of which is formed into a number of twisted prongs 20. These contact the surfaces on either side and the gold plating forms a golddiffusion seal. After assembly, a hermetic joint is made between the cylindrical surfaces of the cup 2 and the casing 13. The flange of a further waveguide may be arranged to fit within the cup 2.
Patent GB-1236425-A (GB)
Title: Shaped articles
Inventor: CALLOWAY GEORGE PATRICK JR
IPC: C08L1/10
Filed: 1968-08-01
Abstract: 1,236,425. Articles of cellulose ester blends. EASTMAN KODAK CO. 1 Aug., 1968 [4 Aug., 1967], No. 36768/68. Heading C3F. A matte-surfaced, shaped article, e.g. a steering wheel, comprising a blend of 20-80% of a non-crystalline cellulose ester and 80-20% of a crystalline cellulose ester, the esters having an I.V. of at least 1 at 25‹ C. after heating for ¢ hour at 250‹ C. in a 9:1 w./w. methylene chloride / methanol mixture, is made by condensing on the article the vapour of a volatile solvent which preferentially dissolves or attacks the non-crystalline ester and allowing the condensate to run off. The crystalline ester contains at most 0À5% OH; at least 1/3 of the combined acyl is C 3-4  fatty acid radical, and at least 95% of the acyl groups do not differ by more than one C atom. The article may be plasticized, e.g. with dibutyl sebacate. In examples the crystalline ester is cellulose tripropionate containing 0.1% OH, the non- crystalline ester is cellulose acetate (2À2%) propionate (45À7%) containing 2À1% OH and the solvent is trichloroethylene. A temperature differential of at least 5‹ C. between the article and the vapour is recommended.
Patent GB-1317753-A (GB)
Title: Footwear and stiffeners therefor
IPC: A43B23/17
Filed: 1970-07-29
Abstract: 1317753 Boots &c A W CLOSSON 29 July 1970 [5 Aug 1969] 36798/70 Heading A3B A counter stiffener suitable for use in shoes with moulded-on soles consists of a sheet of foamed elastomeric polymer having a Vicat softening point of 140‹F or above and a sheet of fabric, the foamed sheet forming the major thickness of the stiffener. The preferred foamed polymer is an ethylene-vinyl acetate copolymer but other useful polymers include styrenebutadiene rubber, polyvinyl chloride, polyurethane elastomers, polyethylene, chlorinated or chlorosulfonated polyethylene and the like.
Patent GB-918106-A (GB)
Title: Improvements in and relating to voltage selectors
Inventor: BURROWS GEOFFREY HAROLD
IPC: G01R19/00
Filed: 1959-10-30
Abstract: 918,106. Voltage testing. SMITH & SONS (ENGLAND) Ltd., S. Jan. 26, 1961 [Oct. 30, 1959], No. 36971/59. Class 37. Apparatus selecting a median input voltage having a magnitude intermediate the magnitudes of two other input voltages comprises three comparators receiving the first and second, second and third and first and third input voltages ; each comparator selecting that one of the two applied voltages which is of a given comparative magnitude referred to the other ; all three comparators selecting voltages of the same comparative magnitude ; together with a fourth comparator receiving the outputs of the first three comparators to select that one of the voltages applied thereto which is of a comparative magnitude referred to the others opposite to the said given comparative magnitude. In Fig. 1, three nominally equal positive direct voltages are applied from corresponding transmission channels to apparatus for selecting the median voltage of three under fault conditions of one or more channels, wherein voltages at a, b ; b, c ; and c, a are connected by opposed paired forward conducting silicon diodes whose junctions are earthed through load impedances 10, 11, 12, over which the larger voltage of each corresponding input pair establishes a voltage drop cutting off the remaining rectifier so that the largest voltage of the three appears across two load impedances and the median voltage appears across the remaining impedance. The load impedances are connected to the cathodes of diodes 15, 16, 17 returned to an output X and over resistance 13 to a positive direct voltage source V exceeding the highest voltage on a, b, c, so that the output voltage is determined by the median voltage input; the remaining rectifiers being backed-off since the median voltage is applied to their anodes and the largest voltage to their cathodes. In Fig. 2 (not shown) the polarities of the rectifiers are reversed and the junctions of the input rectifier pairs are returned to source V greater than any input voltage, while the output resistance is earthed, so that the smallest voltage of the three inputs appears across two of the corresponding load impedances, and the median voltage appears across the remaining impedance. The output consequently is still determined by the median voltage of the three inputs, which may be derived, e.g. from potentiometers driven from mechanical inputs. Response to negative inputs is achieved in Fig. 1 by returning impedances 10, 11, 12 and in Fig. 2 (not shown) by returning the output impedance to a direct voltage less the lowest of the three input voltages.
Patent GB-1495256-A (GB)
Title: Singlephase motors
IPC: H02K29/00
Filed: 1975-08-15
Abstract: 1495256 Control of A.C. motors NATIONAL RESEARCH DEVELOPMENT CORP 15 Aug 1975 [22 Aug 1974] 37007/74 Heading H2J A single phase A.C. motor comprises a rotor, a wound stator, a pair of terminals for connection to a single phase A.C. supply and static switching means for energizing the stator winding from the A.C. supply, the rotor having asymmetry in two axes electrically at right-angles, the wound stator comprising at least three phase windings and the switching means supplying current from the A.C. supply terminals to the phase windings selectively and progressively around the stator axis, whereby a rotating single-phase electromagnetic field is set up. The motor shown in Fig. 1 includes a two-pole machine element such as one of the pair described in Specification No. 1,448,990, the star-connected three phase stator winding 1, 2, 3 being wound on a laminated cylindrical core in a conventional induction motor manner and the rotor 7 being of salient pole type with coils 8, which may be shortcircuited individually or in series connection. The windings 1, 2, 3 are connected to a single phase supply through a bridge of six triacs, Fig. 4 (not shown), which are controlled to produce a rotating field by progressively switching the windings so that all or two of them are alternately connected to the terminals 11, 12, whereby the field rotates 30 degrees for each winding connection. Figs. 2(a), 2(b) and 2(c) (not shown). A typical twelve-step sequence is described. The switching may be controlled by a system sensing the rotor position and the rate of switching may be varied to vary the motor speed or progressively increased from zero to start it. The motor configuration may be disc, tubular or linear. In Fig. 3 the rotor 7 is provided with a winding 18 on the quadrature axis 10, this winding being connected through an impedance 19 to an A.C. supply 20 of the same frequency as that of the supply to the stator winding 1, 2, 3. Connection to the winding 18 is through slip rings and it may be so connected to the stator supply instead of supply 20, for example at terminals 11, 12 of Fig. 1 in series or parallel with the stator winding, the former connection producing maximum developed torque. The latter feature may be obtained, for a parallel connection or a separate rotor supply, by variation of impedance 19 to bring the stator and rotor currents into phase. Alternatively the impedance 19 may be in the stator circuit. Two rotor windings, one in series with the stator and the other in parallel, may be used. The angle of switching the triacs may be varied to vary the phase angle between the positions of the field and rotor and so vary the motor torque. Undesired vibrations and torque variations may be reduced by using two or more motor elements as aforedescribed, different or identical, mechanically coupled and/or supplied in parallel, the respective triacs being phase displaced relative to each other in their switching operations.