baber/WOPTO huggingface dataset:
Patent GB-1425217-A (GB)
Title: Photographic processing apparatus
IPC: G03D9/00
Filed: 1973-04-26
Abstract: 1425217 Photographic processing apparatus T W SLINGSBY, H C NEVILLE AND K A HEISE 26 April 1973 [22 June 1972] 19908/73 Heading G2X A photographic diffusion transfer type processing machine comprises a casing 12 transport means for negative and positive members and a tank 28 for developing liquid. The transport means comprises a plurality of transport elements, at least some of which are arranged in aligned successively spaced relation so as to define a substantially first path of travel through the casing for one member, and a guide 31 defining a second path of travel for the other member, said paths being so positioned in at least partially separated relation to one another that developer liquid in the tank can be applied to both members. As shown, the positive and negative sheets are fed in by rollers 34, 36. The negative sheet passes through bath 28 and the positive sheet passes between rollers 48, 60; the two sheets are then pressed together by exit rollers 70, 72. In embodiments, roller 72 may apply wash or fixer to the negative sheet Fig.2 (not shown) and a pivoted plate (110) may separate sheets 14, (16) before processing Fig.3 (not shown).
Patent GB-183822-A (GB)
Title: Improvements in steam superheater appliances for locomotive and other boilers
IPC: F22G7/06
Filed: 1922-07-20
Abstract: 183,822. Pearson, G. A., (Assignee of Marchbanks, J.). July 27, 1921, [Convention date]. Smoke-tube superheaters, - A smoke-tube steam-superheater is fitted with valves which mav be so operated in the event of the superheater becoming damaged as to cut off the supply of saturated steam to the superheater and allow it to pass into the engine cylinders directly. A valve K, Fig. 2, at the entrance to a saturated steam header A in the smoke-box of a locomotive may be turned so as to divert the steam into a branch J leading into a steam-pipe G opening on to one of the engine cylinders, a flap valve M in the branch being thrown over by the steam pressure so as to close the outlet from the superheated-steam header C. A spring-controlled valve m, Fig. 2A, in the valve M allows a small quantity of steam to pass into header C when the superheater is out of action. A similar valve a in the bottom of the header A allows steam to escape at excessive pressures. Saturated and superheated-steam headers are connected by a pipe H, Fig. 1. Doors B' in the sides of the smoke-box afford access to the covers C<1> on the sides of the superheated-steam headers. A plate D<1>, Fig. 5, fixed to the end of an element protects the element and deflects the hot gases outwardly along the inside of the smoke-tube.
Patent GB-721974-A (GB)
Title: Improvements in or relating to a dryer for dry-creping paper tissue and a method of making and using the same
IPC: B31F1/12
Filed: 1952-08-08
Abstract: 721,974. Creping and drying cylinders of paper-machines. PAPER PATENTS CO. Aug. 8, 1952 [Sept. 19, 1951], No. 20011/52. Class 96. [Also in Group XIII] The surface of a fabricated or cast creping and drying cylinder of a paper-machine is chromium plated and pitted as at 53, Fig. 5, e.g. with at least 25 depressions per inch (measured in any direction), the depressions being e.g. from 20 to 200 micro-inches in depth. (Fig. 5 also shows polishing scratches 55.) The depressions may be made by etching, or by sand-blasting before or after plating. The internal construction may be as illustrated in Fig. 2, steam supply to the jacket space 17 being from an axial bore 25 and along spokes 23 covered at their ends by baffle-plates 29 to prevent irregular heating of the cylinder surface. Condensate is drawn off through pipes 37 &c.
Patent GB-149525-A (GB)
Title: Improvements in vaporizers for internal combustion engines
IPC: F02M31/08
Filed: 1919-08-14
Abstract: 149,525. Jackson, W. J. Mellersh-, (Butler, J. TV., and Metcalf, F. G.). Aug. 14, 1919. Vaporizers, external.- A multi-tubular vaporizer has its tubes 8 arranged within the circumference of the induction pipe 7, and is normally heated by gases passing through a small branch 10 from the exhaust pipe, so that only a limited portion of the exhaust passes through the vaporizer. At starting, hot water is poured into the pipe 13 and flows around the tubes of the vaporizer.
Patent GB-993710-A (GB)
Title: Improvements in or relating to novel metal carbonyl catalysts and the uses thereof
Inventor: BANKS ROBERT LOUIS
IPC: B01J31/12
Filed: 1963-05-21
Abstract: A process for converting an acyclic monounsaturated hydrocarbon to a hydrocarbon of different molecular weight comprising at least some higher molecular weight hydrocarbon comprises contacting the reactant with a catalyst containing a Group VIa metal carbonyl supported on one or more of SiO2, Al2O3 or SiO2/Al2O3.  Preferably the mono-unsaturated hydrocarbon is an alkene having 2-16 carbon atoms. A long list of polymerizable olefins and acetylenes is given. Examples describe the polymerization of ethylene and acetylene in the presence of Cr(CO)6, Mo(CO)6 or W(CO)6 on appropriate supports.ALSO:Polymerization, cyclization or disproportionation of unsaturated hydrocarbons is effected in the presence of a carbonyl of chromium, tungsten or molybdenum supported on silica and/or alumina. The amount of carbonyl, based on the support, may be 0.01-20% wt. Cyclopropane or methylcyclopropane are obtained from ethylene, butenes are also obtained from ethylene, aromatic compounds are obtained from alkynes and C3-C16 1-or 2-olefines are disproportionated.  General conditions used are 0-600 DEG  F., 0-3000 p.s.i.g., 0.1-20 vol vol/hr. with liquid phase and 50-10,000 vol/ vol/hr. with gaseous phase reactions, contact times of 1 second to 10 hours and catalyst concentrations of 0.5-40% wt.  Hydrocarbon diluents may form up to 95% wt. of the reaction mixture.ALSO:Polymerization and hydrocarbon conversion catalysts comprise a Group VIA metal carbonyl on one or more of silica, alumina, or silica-alumina.  Specified carbonyls are Cr(CO)6, Mo(CO)6 and W(CO)6.  The catalyst may be used as a fixed or fluidized bed. The support may be synthetic or naturally occurring.  Examples are given in which the supports are either mixed with the required carbonyl or are impregnated with a hydrocarbon solution of carbonyl.
Patent GB-400153-A (GB)
Title: Improvements in and relating to elastic fluid generators
Filed: 1933-07-17
Abstract: 400,153. Gas turbines. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) July 17, 1933, No. 20184. Convention date, July 16, 1932. [Class 110 (iii).] In apparatus of the type in which an explosion chamber a is arranged inside a steam generator e, and the products of combustion pass through heating tubes b to a turbine c which extracts some or all of the residual energy, the flow of gas to the turbine is regulated in dependence upon the condition of the gases at the end of the heating tubes. The object is to counteract the ill-effects consequent upon variations in the rate of flow due to the periodic explosions. The admission apparatus g, which may control groups of nozzles, is regulated by a device f in the supply pipe. When the pressure of the supply falls, part may be diverted by a valve h to an intermediate stage of the turbine. Each heating pipe discharge may be regulated, or the pipes may be grouped. The principal use of the turbine may be to drive the compressor for the combustion air.
Patent GB-507974-A (GB)
Title: Improvements in or relating to the cooling of the exhaust valves of four-stroke internal combustion engines
IPC: F01P1/08
Filed: 1938-07-07
Abstract: 507,974. Four-stroke engines; cooling exhaust; pumps. TENNANT, W. J. (Aktiebolaget Milo) July 7, 1938, No. 20198. [Class 7 (ii)] In a four-stroke engine in which an exhaust-driven turbine 20 drives a charging blower 18, part of the charging air is diverted by a pipe 29 to mix with the exhaust gas and so to cool the exhaust valve 13 and the passage 30 adjacent thereto. The remainder of the charging air passes to an inlet valve 12, liquid fuel being added in a carburetter 16, or through a nozzle fed by a pump controlled to supply fuel during a period intermediate the opening and closing of the valve 12. By providing large overlap of the exhaust and inlet periods some of the air supplied through the pipe 29 enters the cylinder.
Patent GB-384693-A (GB)
Title: Improvements in or relating to motion picture cameras
IPC: G03B19/18
Filed: 1931-07-14
Abstract: 384,693. Kinematograph cameras. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. July 14, 1931, No. 20263. Convention date, July 14, 1930. Addition to 350,766. [Class 97 (i).] In apparatus according to the parent Specification, wherein means for varying the frequency of exposure and means for varying the lens diaphragm are interconnected, means is provided to cause the square of the diameter of the diaphragm aperture to vary in the same ratio as the speed of the film whatever the initial diaphragm opening may be. As shown, the speed of the film in a motor driven camera may be varied by sliding a knob 18 carried by a slide 161 having a projection 19 engaging the stepped end 20 of a lever which is pivoted at 22 and carries a brake shoe 23 engaging the disc 24 of a centrifugal governor 25. The slide 161 carries an arm 16 provided with a pin 17 engaging a slot 15 in an arm 11 turning about a pin 13 and carrying a pin 12 engaging in a slot 10 in a lever 6 which is pivoted at 8 and carries a pin 7 engaging a slot 5 in a radial arm projecting from the diaphragm ring. The shape of the slot 15 depends upon the particular diaphragm in use, and the pin 13 is adjustable in a slot 14, having its centre in the lens axis, to vary the initial diaphragm opening. The slot 5 is open at its end so that the pin 7 passes from it when the maximum diaphragm open. ing is attained. A modified construction is described, for hand-driven cameras, in which the variation of the diaphragm opening is varied by the governor movements produced by variation in the rate of turning the handle.
Patent GB-1022555-A (GB)
Title: Swaged fittings for hoses
IPC: F16L33/207
Filed: 1963-05-21
Abstract: 1,022,555. Hose couplings. AEROQUIP A.G. May 21, 1963 [June 6, 1962], No. 20263/63. Headings F2G and F2P. A tubular body 10 has a nipple 20 and a concentrically related annular projection 30, the latter being thickest at that end thereof connected to the body and having inner and outer annular ribs 36, 44. The end of the hose, comprising a tube 64 of tetrafluoroethylene and a braided wire reinforcement 68, is received in the recess formed between the projection and nipple and a sleeve 56 is radially contracted to force the hose on to the nipple and radially deform the projection inwardly into sealing relation with the hose. The body has an annular rib 52 which co-operates with a groove 60 in the sleeve 56, and the sleeve has a number of ribs 62 of helical form. Deformation of the projection is such that the inner surface thereof does not engage the outer surface of the hose 64.
Patent GB-728674-A (GB)
Title: Improvements in or relating to compositions comprising acrylonitrile polymers
Inventor: KOWOLIK ERNEST JAN
IPC: C08J3/09
Filed: 1952-08-14
Abstract: Acrylonitrile polymers are dissolved in or swollen by a liquid comprising an acyloxy aliphatic nitrile containing up to 5 carbon atoms, such as formyloxy-acetonitrile, acetoxy-acetonitrile, beta-formyloxy-propionitrile, and beta-acetoxy-propionitrile. Acrylonitrile polymers specified are polyacrylonitrile and copolymers with vinyl acetate, beta-morpholinoethyl vinyl ether, styrene, methyl acrylate, phenyl acrylate, methacrylonitrile, vinyl and vinylidene chlorides, 2-vinyl pyridine, and 2-methyl-5-vinyl pyridine.  The acyloxy nitriles may be used alone or diluted with compounds which are solvents or non-solvents for polyacrylonitrile such as dimethyl formamide, sulpholane, butyrolactone, valerolactones, maleic acid and anhydride, succinic and glutaric anhydrides, nitromethane, resorcinol, catechol, meta- and para-nitrophenols, nitroethanol, ethylene glycol carbonate, ethylene cyanhydrin, water, methanol, and ethanol.  The solutions may be used in the preparation of films and fibres, and in the production of coatings.  Specifications 636,476, 711,344 and 712,984 are referred to.ALSO:The Provisional Specification describes the preparation of acyloxy aliphatic nitriles, such as formyloxy-acetonitrile, acetoxy-acetonitrile, beta-formyloxy-propionitrile, and beta-acetoxy-propionitrile, by heating a corresponding halogenonitrile with an alkali metal carboxylate, preferably in aqueous solution.  The preparation of formyloxy-acetonitrile is exemplified.  Specifications 636,476, 711,344 and 712,984, [all in Group IV (a)], are referred to.
Patent GB-662826-A (GB)
Title: Air blast electric circuit breaker for large currents
IPC: H01H33/14
Filed: 1949-08-08
Abstract: 662,826. Gas-blast switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 8,1949. [Aug. 7, 1948] No. 20552/49. Class 38 (v). Each phase of an air-blast switch is provided with two or more series connected interruptors to which air is supplied through parallel delivery pipes or channels, and one or more parallel connected bridging contact pairs arranged before the interrupters with respect to the delivery of compressed air. In Fig. 3 the arrangement comprises two pairs of interrupting contacts 5, 6 connected in series by means of conductors 19, 20, 22, and two pairs of bridging contacts 11, 12 connected in parallel with each other and with the series connected interrupting contacts. An interrupting unit and a bridging contact unit are arranged in each of two insulating columns to which compressed air may be admitted by blast valves 2 from a container 1. An isolator or disconnecting switch 14, 16, may be provided. In a .modification, Fig. 2, (not shown) one bridging contact assembly is used in. conjunction with two interrupting units, the latter being housed in two parallel insulating cylinders joined by a common pipe to the single insulator housing the bridging contact assembly. Figs. 1a and 1b (not shown) illustrate an arrangement having three pairs of interrupting contacts and three pairs of bridging contacts.
Patent GB-1220072-A (GB)
Title: Improvements relating to foamed materials
Inventor: BROWN JOHN WATSON
IPC: B29C69/00
Filed: 1967-05-03
Abstract: 1,220,072. Moulding foamed articles. BAXENDEN CHEMICAL CO. Ltd. 5 Aug., 1968 [3 May, 1967], No. 20613/67. Heading B5A. A process for the production of shaped foamed articles comprises introducing a curable foam forming composition into the two parts of a two-part mould while they are horizontal, allowing the composition to foam and partially cure until it is self-supporting, closing the mould so that the foam surfaces contact or face each other and continuing the curing and foaming in the closed mould. The mould preferably comprises two rectangular halves hinged together, the two halves having the same or different volumes and the two halves are preferably brought together with the junction plane vertical. The rise due to forming may be between 5 and 99% (preferably 85-90%) of the total free rise when the mould is closed and the foamed article may be post cured at elevated temperature before or after removal from the mould. The foaming material is preferably polyurethane or a natural or synthetic rubber.
Patent GB-1394140-A (GB)
Title: Foam fire extinguishing system
IPC: A62C5/02
Filed: 1973-05-01
Abstract: 1394140 Fire fighting H C STULTS 1 May 1973 [2 May 1972] 20627/73 Heading ASA [Also in Division B1] High expansion foam producing solution for a fire fighting system is prepared from a concentrate composed of, in percent by weight from 3.0 to 4.5 percent Neodol 24, 30 to 35 percent Neodol 23-3A, 26 to 30 percent mono ether dietheolene glycol and the balance of 30.5 to 41 percent being of water. The concentrate is diluted by water to form a solution containing, in percent by volume in excess of 4 percent of the above concentrate and 96.0 percent water. Neodol 23-3A, is an aqueous solution of an ammonium salt of a sulfated primary alcohol ethoxylate containing on the average three ethylene oxide units. Neodol 23-3A has a molecular weight of approx. 423, a content of ethylene oxide by weight of 31.2 percent, a specific gravity at 25‹C of 1.01 and a pH of 7.3. It is a light coloured viscous liquid containing about 60 percent by weight surfactant and ethanol is included as a solubilizer. Neodol 25 is a blend of linear primary alcohols with 12, 13, 14 and 15 carbon atoms. The physical characteristics of Neodol 25 are a molecular weight of approx 207 a specific gravity at 35‹C of 0.834, and a viscosity of 18.3 centipoise at 100‹F.
Patent GB-928559-A (GB)
Title: Improvements in or relating to feeding devices for feeding pieces of cloth, paper orthe like
IPC: D05B33/00
Filed: 1961-06-08
Abstract: 928,559. Feeding sheets. G. M. PFAFF A.G. June 8, 1961 [June 23, 1960], No. 20669/61. Class 100 (1). Apparatus for picking-up pieces of cloth or paper and feeding them to a sewing or other machine includes a number of pick-up elements having adhesive-surfaced ends which are projected through spaced openings in a plate, disposed parallel to the cloth &c. pieces, and are then withdrawn so that the pieces are removed from the elements by the plate. As shown, an L-shaped frame comprising a baseplate 8 and vertical plate 6 is secured to a pair of slides mounted for manual or automatic vertical movement on posts 2 which are connected by cross-bars 3 and provided with rollers 4 which engage a top and a bottom rail 1, whereby the frame can be moved from pick-up to depositing positions. In the pick-up position shown, the plate 8 is disposed over a stack of pieces of cloth 40 on a table 41 provided with rods 42 slidable in holes in a fixed frame 43, the table being urged upwardly by springs 44. A sleeve 11, slidable on a vertical post 10 secured to the plate 8 and urged upwardly by a spring 20, has a pair of lateral arms each carrying an arm 13 having six extension arms 13a, 13b, 13c. The arms 13a carry the supply and take-up spools 14, 15 of an adhesive tape 16 which is passed around rollers 17, 18, 19 on the other arms 13b, 13c. The four rollers 18 are disposed over apertures in the plate 8 so that, when the sleeve 11 and arms 13 are depressed, the rollers pass through the plate to press four portions of adhesive tape 16 on to the top piece of cloth 40. When the frame 6, 8 rises, the top piece 40 is separated from the pile, and the frame can then be transported along the run-ways 1 to a processing station; in this position, the sleeve 11 is allowed to rise, and the cloth piece is stripped from the rollers 18 by the plate 8 as the rollers pass upwardly through the plate apertures. The sleeve 11 is held in the depressed condition by a stop 22 on a cross-rod, which is actuated by a fixed cam-wedge at the processing station, to release the sleeve. Also, at the processing station, a ratchet-operated shaft 29 carrying the take-up spool 15 is operated by a lever 32 engaging a fixed rod, as the sleeve 11 rises, whereby the tapes 16 are advanced to expose fresh portions thereof to the cloth pieces. In modifications, the pick-up elements may be fingers which are coated with adhesive each time they are retracted, or may be tubes supplied with adhesive through spring-urged ball valves in the ends of the tubes.
Patent GB-826931-A (GB)
Title: Improvements in or relating to heat transfer systems
Inventor: DALTON GEORGE CLIFFORD JAMES
IPC: G21C1/02
Filed: 1949-08-11
Abstract: 826,931. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 4, 1950 [Aug. 11, 1949], No. 20889 /49. Class 39(4). A nuclear reactor comprises a shell, tubes traversing the shell, couplings for connecting the tubes in a coolant flow circuit, solid fissile material packed between the tubes, and a metal of low melting point in the shell for maintaining effective thermal contact between the fissile material and the tubes. Fig. 1 shows cross-section of a fast reactor comprising a cylindrical steel shell 1, corrugated to allow for thermal expansion, and top and bottom cover plates 3, 4 between which extend steel tubes 5. The spaces between the tubes 5 are packed with fissile material 6, either in the form of suitably shaped blocks or in granular form. The spaces between the fissile material and the tubes 5 are filled through a feed tube 7 with a liquid metal such as sodium. A fuel element is positioned in each of the tubes 5 and F 81 comprises a rod 10 of uranium 235 or plutonium 239 in a steel sheath 11, sodium being provided between the rod and the sheath. The lower end of the fuel elements are provi. ded with locating lugs 13 which are a light force fit in the tubes 5 so that the lower ends can slide in the tubes to accommodate thermal expansion. The upper ends of the fuel elements are similarly provided with locating lugs 15 which are force fits in the conically expanded upper ends of the tubes 5. The reactor core is provided with upper and lower tampers comprising tubes 21, 18 respectively surrounded by lead or natural uranium and sodium; the tubes 18, 21 serve to feed the coolant, which may be a sodium potassium alloy, into and out of the tubes 5. In making the fuel elements a rod 10 is inserted in its sheath, the lower end cap 12 with an axial bore through it is fixed in position and a small yielding packing -tube 22 is inserted in the top of the sheath. The sheath is warmed and scavenged and sodium is introduced through the bore in the lower end cap until it overflows through the packing tube. The bore is then plugged, and when the element cools the sodium solidifies and temporarily seals the sheath. Excess sodium is removed and the top end cap 14 is applied and welded in position, this end cap providing an inert gas-filled space into which the sodium can expand.
Patent GB-919611-A (GB)
Title: Improvements in removable buttons
IPC: A44B1/28
Filed: 1959-06-18
Abstract: 919,611. Buttons. HOLMAN, M. S. June 8, 1960 [June 18, 1959], No. 20930/59. Class 43. A removable button comprises, as a single member, a head 1, a resilient flexible shank 3 of flat strip form and a retaining arm 2 extending transversely of the end of the shank, the retaining arm having a first portion which projects to one side of the shank and is substantially the length of the shank and a second portion which projects to the opposite side of the shank and is at least equal to the length of the first portion. The button is attached by passing one portion of the retaining arm through a button-hole the cord of the other portion engaging under a projection 6 or in a groove in the button head by flexing the shank the end of the retaining arm is released so that the head is on one side of the button hole and the retaining arm on the other side. The rear surface of the head may be dished. The button may be formed as a onepiece moulding of a synthetic resin material.
Patent GB-121731-A (GB)
Title: Improvements in Sheet Metal Radiators for Heating Buildings and the like.
Inventor: CARDELL OLOF VALFRID
IPC: F28D1/03
Filed: 1918-12-17
Abstract: 121,731. Cardell, O. V. Dec. 18, 1917, [Convention date]. Addition to 119,448. Radiators.-The radiator described in the parent Specification is modified in that, instead of the portions of the two sides between adjacent sections being riveted in contact for the greater part of their height, a narrow opening 1 is left between these portions extending almost the full height of the radiator and merging at one or both ends into openings 2 of rounded form. Longitudinal stays 3 are passed through the openings 1 and fastened to the end sections of the radiator for strengthening purposes. Some of the rivets passing across the openings 1 may also pass through the stays 3.