baber/WOPTO huggingface dataset:
Patent GB-233660-A (GB)
Title: Improvements in or relating to starting devices for internal combustion engines
IPC: F01L13/00
Filed: 1925-03-04
Abstract: 233,660. Schoonhoed, L., (Assignee of InchauspÚ, L.). May 10, 1924, [Convention date]. Valve gear; regulating. - A single lever 17 is arranged to effect either mechanically or pneumatically, the successive axial displacement of a valve member 4 serving to put the cylinder in communication first with the atmosphere and afterwards with a fluid-pressure tank for starting purposes. As shown, a cam 16 on the lever 17 has notches I--IV for engagement with a roller 15 on a lever 14 bearing against the member 4, which carries a valve 5 normally cutting off communication between the device and the engine cylinder. When the movement of the lever 17 brings the roller 15 into notch I, the valve 5, is opened and the cylinder is in communication with the atmosphere by way of the valve 5 and passages 3, 18, 19, causing the engine to stop. In position II, the valve 5 opens further, relieving compression sufficiently to allow the engine to be started by hand. In position III, a piston 10 on the member 4 closes the passage 19 and the cylinder compresses air into the starting tank by way of valves 5, 8. In position IV, a cam 6 on the member 4 lifts the valve 8 and allows starting air to be admitted past the valves 8, 5 to the engine. During the return of the member 4 to the normal position, compressed air from the space 3 escapes to the atmosphere through the passages 18, 19. In a modification, the operations are effected in sequence by the admission of compressed air behind a piston on the member 4 when the roller 15 engages notch I. An arm on the axis of the lever 17 is arranged to open a valve in a compressed-air pipe leading past a cam-actuated valve 26, Fig. 5, to the space behind the piston on the member 4, so that the valve 5 is opened when the engine piston is in a suitable position for starting. The valve 26 comprises a pair of pistons controlling compressed air ports 29, 30 and an air escape port 28.
Patent GB-373288-A (GB)
Title: Improvements in or relating to facsimile telegraph television and like apparatus
IPC: H04N1/04
Filed: 1931-02-26
Abstract: 373,288. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, and DOWSETT, H. M., 47, Drayton Gardens, Winchmore Hill, both in London. Feb. 26, 1931, No. 6066. [Class 40 (iii).] A tape or band T, carrying a single-line message or picture of greater length than the portion to be transmitted, is moved through an area XX, where television scanning is effected in straight parallel lines wholly within, and wholly occupying, a predetermined length of the strip. A prism 5 reflects light through a helix of apertures or lenses in a rotating drum 6 so positioned that the light emitted passes over the scanning area in straight lines parallel to the direction of movement of the tape, and is reflected to a photo-electric cell, not shown. If a transparent tape is used, the cell is placed behind it. At the receiver, the signals control a discharge lamp or a Kerr cell, and a sensitized tape, moving synchronously with the transmitter, is scanned by an apertured drum or a mirror wheel so that the elements of the reproduced image register correctly.
Patent GB-693395-A (GB)
Title: Method of making benzene hexachloride
IPC: C07C17/02
Filed: 1951-03-13
Abstract: Benzene hexachloride is made by mixing from 50 to about 3 per cent by weight of benzene with 50 to about 97 per cent of methylene chloride, chloroform, ethylene chloride, ethylidene chloride, a trichloroethane or a tetrachloroethane adding chlorine in the dark while continuously introducing ethylene or propylene or a mixture thereof as an initiator for the reaction in a small amount relative to benzene, but sufficient to induce rapid reaction; maintaining the temperature at 8-40 DEG  C., and separating benzene hexachloride from the products. The hexachloride is rich in the gammaisomer, e.g. a content of about 17 per cent or more is obtained.  25 per cent of ethylene or propylene based on benzene may be used although amounts of about 5 per cent or 0.9 per cent are also indicated.  The amount of chlorine added is usually at least 10 per cent in excess of theoretical. Preferably the temperature is 20-35 DEG  C.  Reaction may be effected under pressure.  Preferably the solvent comprises less than 5 per cent of benzene, precipitation of product then being avoided.  In examples: (1) benzene is chlorinated in the dark in 20 times its weight of methylene and ethylene chlorides at 20-35 DEG  C. with about 0.2-0.25 mol. of ethylene and 4.4 mols. of chlorine per mol. of benzene and results are contrasted with a similar experiment in which carbon tetrachloride is the solvent; (2) as in (1) but propylene is the initiator and methylene chloride the solvent about 0.2 mol. propylene and about 4 mol. of chlorine being used per mol. of benzene; (3) is as (1) but about 0.4 mol. ethylene and about 8.8 moles of chlorine are used per mol. of benzene with methylene chloride as solvent, and in (4) equal parts of benzene and methylene chloride are chlorinated at about 20-40 DEG  C.  About 1.4 litres of ethylene and 100 grams of chlorine being used per 200 grams of benzene.  Specification 653,364 is referred to.
Patent GB-161793-A (GB)
Title: Improvements in connection with scooters
IPC: B62K3/00
Filed: 1920-03-01
Abstract: 161,793. Alexander, (nÚe O'Brien), M., March 1, 1920. Treadle mechanism.-Foot-cycles or scooters of the kind described in Specification 105,710 have the treadle-operated driving - wheel A formed with a continuous flange a<1> upon one edge of its periphery and two or more projections a<2>, a<3> around the other edge. In this way, an ordinary sprocketwheel is dispensed with, and the endless transmitting-medium may consist of a band portion secured to the wheel A and an ordinary chain portion engaging with a sprocket-wheel on the axle of the rear road wheels. The treadle arm or crank B is formed with the wheel A and extends from the hub or the side thereof.
Patent GB-745383-A (GB)
Title: Improvements in or relating to emulsion polymerisation
Inventor: BARNES ARTHUR WILLIAM
IPC: C08F2/22
Filed: 1953-03-06
Abstract: Aqueous dispersions of copolymers of a conjugated diolefine and a monolefinic monomer are made by polymerizing an aqueous mixture of the monomers, preferably in the presence of a polymerization catalyst, and introducing into the mixture only after polymerization has commenced but before any coagulation of the polymer dispersion occurs, an emulsifying agent.  The emulsifying agent may be added portionwise or continuously during the polymerization and a further portion may be added at the end of the process, which may be different from the original emulsifying agent.  The polymerizable mixture may include a chain-terminator, an anti-freeze agent, e.g. methanol, and also "seed" copolymers of the above type.  Diolefines mentioned are butadiene-1,3, isoprene, dimethyl butadiene-1,3, and piperylene.  The other monomer may be styrene, alpha-methyl styrene, acenaphthylene, vinyl carbazole, vinyl acetate, vinyl pyridine, acrylonitrile, methacrylonitrile, methyl methacrylate, methyl acrylate, methacrylamide, methacrylic acid, or methyl alpha-chloroacrylate. Specified emulsifying agents are sodium lauryl sulphate, sodium oleyl sulphate, sodium cetyl sulphate, the sodium salt of sulphonated castor oil, the sodium salt of sulphonated or sulphated methyl oleate, sodium oleate, sodium palmitate, sodium stearate, and an oleyl alcohol or dioctyl cresol/ethylene oxide condensate.  The catalyst may be hydrogen peroxide, potassium persulphate, or a redox system consisting of cumene hydroperoxide or benzoyl peroxide mixed with a ferrous sulphate-potassium pyrophosphate complex, and sorbose or fructose.  Chain terminators mentioned are alphatic mercaptans, dialkylxanthogen disulphides, di-(benzoic acid ester) tetra-sulphides, tolyldisulphides, and tolyltrisulphide.  The copolymer dispersions may be used in water paints, for coating paper and making films; they may also be mixed with natural or other synthetic latices, e.g. in the production of foamed latex sponge.
Patent GB-811275-A (GB)
Title: Control switch mounting for motorized hand truck
Inventor: ULINSKI BRONISLAUS I
IPC: B60Q1/22
Filed: 1957-02-26
Abstract: 811,275. Electrically propelled vehicles; controls. YALE & TOWNE MANUFACTURING CO. Feb. 26, 1957. No. 6403/57. Class 79(3) [Also in Group XXXVII] Relates to a truck (Fig. 7, not shown) with a tractor unit consisting of a motor,. a gear case and a traction and steering wheel rotatable in a horizontal plane together by a steering handle 12 having control switches 27 mounted at its end and: itself hinged for vertical motion; the switches 27 are housed in a casing 11 supporting a movable actuator 42 that can be engaged with the flexible end 44 of a contact finger 46 fixed to a removable casing cover 34 that supports electrical contact fingers 52-a-b and 53-a-b operated by movement of the finger-end 44. The switches are operated by a plate 36 which is journalled in the top 31 of the casing on spaced pins 38 under a curved guard plate 39. The actuating plunger 42 is pivoted at 41 so as to be moved when the plate 36 is rocked and has a slit 43 to engage the forked end 44 of the finger 46. The fingers are all resilient and the finger 46, when moved upward, will make electrical contacts successively with the fingers 52, 52a. and 52b, and when moved downward successively with the fingers 53, 53a, and 53b. The various fingers control the motor in such a way that manipulation of the plate 36 in one direction causes the truck to move forwards first at a slow speed when only the fingers 46 and 53 are in electrical' contact, and then, as more contact fingers are brought together by further movement of the plate 36, at succesively increasing speeds. Manipulation of the plate 36 in the opposite direction causes similar rearward movement of the truck at successively increasing speeds. The end 59 of a push button 58 passing through the casing wall 31 engages the upper unit of another pair of contact fingers 56, 56a which operate a warning horn for the vehicle. Plug holes 78 are provided in the cover 34 to accommodate push buttons for other control features of the truck if desired.
Patent GB-1522904-A (GB)
Title: Piezoelectric transducer assemblies
IPC: B06B1/06
Filed: 1976-02-18
Abstract: 1522904 Piezoelectric transducers FRANCE ARMED FORCES MINISTER OF 18 Feb 1976 [27 Feb 1975] 06473/76 Heading H4J A high power sonar antenna particularly for under water use comprises a plurality of stack piezoelectric transducer assemblies 6 arranged around the inside surface of a cylinder 1, the arrangement being characterized by the provision of a single central countermass 7 common to all the assemblies. The arrangement is constructed by first bolting each assembly 6 to the counter mass 7 and then heat shrinking the cylindrical housing 1 around the assemblies. Several of the units of Fig. 2 may be arranged along a common counter mass and the housing may be filled with a dielectric liquid, e.g. oil (Fig. 3, not shown). In such arrangement the cylindrical housing parts 1 are acoustically separated from each other and an outer flexible housing is provided, e.g. of a particular type of rubber, having the same density as rubber. The piezoelectric elements may be of a ceramic material.
Patent GB-322140-A (GB)
Title: Improvements in or relating to means for supporting hats or hat bodies during drying
IPC: F26B25/18
Filed: 1929-02-28
Abstract: 322,140. Hulme, T. Feb. 28, 1929. Racks. - Relates to means for supporting hat bodies during drying e.g. after dyeing of the kind comprising a central support provided at the top with a hook and having a series of projecting pegs inserted in slanting staggered holes therein, and consists in arranging the pegs to project in four different directions and displaced or staggered both vertically and circularly to provide a large space between the ends of adjacent pegs. The pegs 5 are, preferably, of substantial thickness, as shown. The hook 14 is slidable on a rail supported by brackets 16 which permit the hook to slide past them on the rail.
Patent GB-272285-A (GB)
Title: Improvements in line-spacing mechanism for typewriting machines
IPC: B41J19/84
Filed: 1926-03-09
Abstract: 272,285. Fairweather, W. C., (Underwood Typewriter Co.). March 9, 1926. Line-spacing mechanism. - The line-spacing pawl is pressed into contact with a ratchet-wheel on the platen by a spring co-operating with an abutment arranged to increase the pressure at the beginning of the stroke, overthrow of the platen being thereby prevented; the ratchet-wheel may co-operate with a detent releasable by a cam so arranged that if the detent is in released position it is automatically restored when the line-spacing mechanism is operated, In the mechanism shown in the Figure, a slide 13 operated by a lever 10 and carrying the pawl 15 is provided with a spring 27 which presses on the pawl and rides under an abutment 29 so arranged that a tooth 17 on the pawl is pressed firmly into engagement with the ratchet-wheel 18 at the beginning of the stroke. At the end of the stroke the spring is disengaged from the abutment and an incline 32 arrests and jams the pawl by contact with an incline 31 thereon. The slide is connected to a returning-spring 25 and has a screw 23 engaging a guide-slot 24 in the end plate 21. Spacing is regulated by means of an adjustable shelf 34 on which the pawl normally rests. The shelf is formed on an arm 33 pivoted on the platen shaft 20 and adjustable by a knob 35, a yielding detent 37 retaining the arm in adjusted position. A roller-detent 39 engaging the ratchet-wheel is carried by a spring arm 40 and is releasable by a cam 42 on a finger-lever 41. If the line-spacing mechanism is operated when the finger-lever is in the released position, the slide 13 engages the finger-lever and the detent is automatically restored,
Patent GB-372459-A (GB)
Title: Improvements in or relating to the polishing of hot mill rolls
IPC: B24B5/36
Filed: 1931-03-04
Abstract: 372,459. Grinding. CONTINENTAL CAN CO., Inc., 100, East 42nd Street, New York, U.S.A. -(Assignees of Geeseman, D. B. ; c/o Standard Tin Plate Co. ; Canonsburg, Pennsylvania, U.S.A.) March 4, 1931, No. 6682. Convention date, July 17, 1930. [Class 60.] Block, rubber, and like apparatus ; rollers, treating.-A polishing-mechanism for the rolls of a hot mill, which operates during the rolling operation of the mill, consists of abrasive blocks traversed along the rolls on the discharge side of the mill and disposed within the area bounded by the surface of the rolls and a line tangent to the rolls. The mill has housings 1 supporting the rolls 2, 3 and on each housing, at the roll side thereof, are bushings 6, 9 slidably supporting rods 7, 10 respectively, the rod 7 carrying an arm 8a having secured thereto a polishing block 9a, and the rod 10 similarly carrying a polishing-block 12. The blocks are respectively pressed against the rolls 2, 3 by a spring 17 carried by a rod 18 and acting on arms 13, 14 secured to the rods 7, 10, a second spring 26 on a rod 25 also acting on the rods through collars 21a, 23 secured to the rods. The rods 7, 10 have reduced portions engaging a bracket secured to a crosshead 21 so that the rods are moved axially by the crosshead to traverse the blocks along the rolls, and the crosshead is guided by a rod 31 mounted in a frame 28 secured to the housing 1. In the frame 28 are mounted sprocket wheels carrying an upper chain 45 and a lower chain 56 with parallel runs, and driven from a motor M through a speed reducing gear 61 by a chain 63, and the chains 45, 56 each has laterally projecting links 47, 48 adapted respectively to engage lugs 34, 35 carried by slots in the crosshead, so that the chain 45 carries the crosshead to the left, Fig. 1, and the chain 56 then carries the crosshead to the right, thus moving the polishing blocks along the rolls, with a slight dwell at each end of the strokes. In a modification, Fig. 12, a single chain 75 is employed carried in a frame 64a secured to the housing 1, the chain having projections 78 to engage either lugs 73a or lugs 74 of a dog slidably mounted in a crosshead 67 movable between the runs of the chain, and the dog being moved up or down in the crosshead, at the ends of the strokes, by trips 81, 82 adjustably mounted on the frame.
Patent GB-609048-A (GB)
Title: Improvements in and relating to ignition systems for internal combustion engines
IPC: H02K21/38
Filed: 1946-03-04
Abstract: 609,048. Ignition magnetos. WIPAC DEVELOPMENT, Ltd., and LUTTMER, W. March 4, 1946, No. 6732. [Class 35] In an inductor magneto, two permanent magnets are arranged relatively to the armature core so that their fields are normally in opposition, but at intervals the magnets are shunted alternately by an inductor carried by the fly-wheel but disposed away from the axis of rotation thereof. As shown, the magnets 10, 11 which are short-circuited by the inductor 29 on the fly-wheel 27, may be in a sealed container with the polepieces 12, 13, 15, core 14 and windings 22, 23 or they may be embedded in a non-magnetic casting or moulding, or only the windings may be in such a container. For multi-cylinder engines additional inductors are provided and if unsymmetrical are balanced by non-magnetic material on the fly-wheel.
Patent GB-253972-A (GB)
Title: Improvements in automatic or semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1925-03-12
Abstract: 253,972. Standard Telephones & Cables, Ltd., (formerly Western Electric Co., Ltd.), and Gould, J. R. March 12, 1925. Automatic and semi-automatic exchange systems.-In a test or trunk-offering distributor switch, the switching relay H energizes over the forward loop to the succeeding switch. When the switch is taken into use by an operator, line and release relays A, B energize, and the first train of impulses are repeated to the vertical magnet V. series relay C relapsing at the end of the train to connect up the rotary magnet R, which responds to the second train. Series relay E operates during this train, making the driving circuit independent of test relay G, and energizing this relay, and falls back when the wanted connector is reached. If this is in use, relay G is held by ground over the test wiper, so that the rotary magnet circuit is maintained open and busy tone is sent back. If the wanted connector is free, relay G falls back and grounds the test wiper. Switching relay H energizes over the line wipers in series with the line relay of the connector, and subsequently locks over the test wiper when ground is returned back thereover.
Patent GB-889624-A (GB)
Title: Improvements in apparatus relating to the mixing of vapour and liquid
IPC: B01D3/16
Filed: 1959-02-27
Abstract: 889,624. Contacting a gas with a liquid. GLITSCH & SONS Inc., FRITZ, W. Feb. 27, 1959 [Sept. 8, 1958], No. 6878/59. Class 55 (2). [Also in Group XXIX] Apparatus for contacting a vapour with a liquid comprises a column containing a liquid supporting tray having orifices for the upward flow of vapour, each orifice having a closure adapted to be lifted by a predetermined pressure differential above and below the tray and provided with means to control the movement of the closure in at least two stages, whereby the closure is lifted initially to provide a uniform flow passage permitting a minimum and maximum rate of initial flow of vapour through the orifice and on a predetermined increase in the pressure differential above and below the tray, is further lifted to provide a larger minimum and maximum rate of subsequent flow of vapour through the orifice, each closure being seated on the tray over an orifice and being moved when lifted completely out of engagement with the tray. As shown in Fig. 5 a tray 11 has an orifice 17 with a closure consisting of a domed plate 19 which can seal the orifice, domed plates 20 and 21 supported above the plate 19 on legs 32 and 33 respectively and a cover plate 22 supported and secured by studs 40 (one only shown) at a height above the tray corresponding to a predetermined maximum opening of the closure. In operation pressure of upwardly flowing vapour first lifts the plate 19 until it contacts the plate 20, and on increasing flow of vapour the plates 19 and 20 are lifted up to the plate 21 and finally all the plates are lifted up to the cover plate 22. The orifice 17 preferably has a seat forming member 25 as shown. The undersurface of the plate 22 has downwardly extending tongues 45 and the undersurfaces of the plates 20 and 21 have protuberances to prevent adherence of the plates when wetted by the liquid on the tray. The cover plate 22 may have a skirt extending downwardly to the surface of the tray, the skirt being provided with passages 69 for the flow of vapour as shown in Fig. 14. The weights of the liftable plates may be varied in each closure and from closure to closure.
Patent GB-558077-A (GB)
Title: Improvements in electric generators
IPC: H02K1/27
Filed: 1942-05-21
Abstract: 558,077. Magnetos. WATSON, F. (Aktiebolaget Elektrolux). May 21, 1942, No. 6903. [Class 35] A lighting generator, principally for cycles, has a rotary permanent magnet carrying soft iron pole pieces, the magnet 14 consisting of a polyhedron having end faces and a periphery of which successive faces are inclined at equal opposite angles to a plane at right angles to the magnet axis. The end faces lie preferably at right angles to the axis of rotation. Soft iron plates 15 are secured in contact with the end faces 22, portions of these plates having tongues forming pole shoes 25, preferably parallel to the axis. Wedge shaped air gaps lie between each of these shoes and the contiguous face of the polyhedron as shown in Fig. 1. Figs. 4 and 5 are respectively elevation and planes of such a polyhedral magnet, the medial plane of which is, in this case, a hexagon.
Patent GB-1027641-A (GB)
Title: Improvements in washers
Inventor: EAST EDWARD JESSE
IPC: F16B43/00
Filed: 1962-02-22
Abstract: 1,027,641. Washers; joint-making packing. E. EAST & SON (MANUFACTURING) Ltd. Feb. 4, 1963 [Feb. 22, 1962], No. 6948/62. Headings F2B and F2H. A flexible sealing washer comprises a hollow cylindrical body 1 for reception of a bolt or pin, an encircling, dished flange 2 and an integrally formed annular ring 4 of tapered cross-section encircling the body and extending within the flange, the flange having two different radii of curvature in different axial planes. The dished flange has a thickened periphery 3 which is rhomboidal having major or minor axes in the perpendicular, axial planes.
Patent GB-1039883-A (GB)
Title: Breast box assemblies for paper making machines and method of operating the same
IPC: D21F1/02
Filed: 1963-02-21
Abstract: 1,039,883. Pulp supply in paper-making machines. ESCHER WYSS G.m.b.H. Feb. 21, 1963 [Feb. 21, 1962], No. 7042/63. Heading D2A. A breast box for a paper-making machine comprises a mixing chamber 4 into which pulp flows from a distributor before flowing through a channel 5 into a compartment 6 having an open liquid surface 7 and an outlet 8 leading on to a machine wire 13. The open liquid surface in the compartment 6 is maintained at between 1.1 and 1.3 times the height of the channel 5. The distributor comprises individual pipes 2 connected to a feed pipe 1 and having flexible portions 3. It tapers from a rectangular inlet pipe 28 to a circular return pipe 29 that has a built-in regulating member. The distances A and B between rotatable perforated rollers 23, 24, 25 are 10-15 times the diameter of the perforations. The compartment 6 has spray nozzles 18 and a pipe 17 connected to a source of pressure or vacuum. The plate 10 of the outlet 9 at its upper end forms a sluice which is adjustable. The breast box can be moved towards the wire 13 by eccentric rollers 35 arranged to lift the base 30 off the foundation 31 on to rollers 34. Removable covers 26, 27 are provided for the chamber 4 and compartment 6.