baber/WOPTO huggingface dataset:
Patent GB-1443088-A (GB)
Title: Facsimile transceiver
IPC: F16D41/00
Filed: 1974-03-11
Abstract: 1443088 External drum-brakes; one-way brakes XEROX CORP 11 March 1974 [12 March 1973] 10757/74 Heading F2E [Also in Division H4] A facsimile transceiver comprises a rotary member 10 for conveying sheet material past a station for scanning, a band 11 of resilient material arranged for rotary movement with the rotary member 10, and a pivoted rigid arm 14 arranged with one end in frictional contact with the band 11, the arm applying a braking force to the rotary member 10 when the latter rotates in a first direction 16 and the arm depressing the band 11 when the rotary member 10 tries to rotate in the reverse direction, so that continued reverse rotation is prevented. As shown, arm 14 is biased by a torsion spring 15 for the above purposes.
Patent GB-689361-A (GB)
Title: Improvements in heat exchangers
Inventor: JR JOHN WESLEY BROWN
IPC: F28F3/02
Filed: 1951-05-08
Abstract: 689,361. Plate heat-exchangers. BROWN FINTUBE CO. May 8, 1951, No. 10787/51. Class 64 (iii). Secondary heating surfaces for heat-exchangers comprise a stack of metal strips each having a greater thickness along its longitudinal edges than between such edges and having a series of pin-like fins extending from a zone adjacent one of the thick edges to a zone adjacent the other of said thick edges. The thickened edge portions of the strips may be of bulbous cross-section as shown in Fig. 4, formed by a rolling or extruding operation or alternatively a flat strip may be turned at the edges. The pin-fins are formed by perforating the strips with either elongated-oval or rectangular openings, the ligaments between the perforations constituting the pinfins 48. The pin-fins may be bent out of the plane of the strip. A plate heat exchanger having such secondary heating surfaces in the fluid passages is shown in Fig. 3 and comprises nested flanged plates 20-24 with the two fluids flowing in heat exchange relation through alternate passages between the plates, a plurality of strips being stacked in each of the fluid passages and bonded to the walls thereof Adjacent the inlet and outlet conduits to and from each of the fluid passages, a number of stacked channel members is provided, extending transversely to the stacked strips, these channel members being bonded to the side walls of the fluid passages and being provided with holes in their base portions so that they serve to distribute the fluid uniformly across the stacked strips, Fig. 2 (not shown).
Patent GB-1070933-A (GB)
Title: Improvements to fuel cells
Inventor: PIRET JEAN
IPC: H01M8/10
Filed: 1964-03-13
Abstract: 1,070,933. Fuel cells. SOC. D'ETUDES DE RECHERCHES ET D'APPLICATIONS POUR L'INDUSTRIE "S.E.R.A.I." June 1, 1964 [March. 13, 1964], No. 10794/64. Heading H1B. An electrolyte for a fuel cell comprises a membrane containing a carrier or binder mixed with crystalline grains of an acid salt of a polybasic acid selected from phosphoric, vanadic, tungstic, phosphotungstic, molybdic and phosphomolybdic acids, and of a metal selected from titanium, zirconium, tin and niobium. The carrier or binder may be asbestos, polyethylene, a halogenated polyethylene or a polysiloxane. The electrolytic membrane may be interposed between two electrodes in a fuel cell. The crystalline grains preferably are prepared by size-reduction, for example to below 50 microns, of crystalline grains having a particle size of at least 1.5 millimetres. The crystalline grains either may be prepared by heating a compound of the metal with concentrated sulphuric acid until a clear solution is obtained, adding the polybasic acid in anhydrous form to the solution, and heating the resulting mixture to give a gel from which crystalline grains are recovered, or may be obtained by heating grains of the amorphous salt with an aqueous solution of sulphuric acid or nitric acid and of the polybasic acid from which the amorphous salt is derived; the above two methods are fully described and exemplified in Specification 1,070,932.
Patent GB-1145372-A (GB)
Title: Electrolytic dechlorination of chlorine-bearing organic compounds
IPC: C25B3/25
Filed: 1966-03-11
Abstract: 1,145,372. Electrolytic partial dechlorination of chloroaliphatic compounds. AJINOMOTO CO. Inc. March 11, 1966 [March 13, 1965; May 1, 1965], No.10842/66. Heading C7B. A polychloromethyl group of a compound Cl n H 3-n   CR is electrolytically converted into the corresponding monochloromethyl group by forming a solution in a mixture of water and a water-soluble organic solvent of the compound and an ionizable salt and passing a current through the solution via a cathode contacting the solution until the desired conversion is achieved; n being 2 or 3, R being an aliphatic radical having at least two carbon atoms, and the ionizable salt being a halide of an alkalimetal, ammonium or an alkaline earth metal or a salt of a C 1  to C e  alkyl amine, benzylamine, or a C 1  to C B  lower alkyl quaternary ammonium compound with a mineral acid or a strongly acidic organic sulphonic acid. In the examples given the compound dechlorinated is a straight chain compound in which R has at most 6 Catoms, the polychloromethyl group is attached to one terminal member of the chain and the other terminal member of the chain is -CH 2  X where X is H, Cl, OH, CN, COOH or a C 1  to C 6  alkyl-carboxy group; the organic solvents specified are methanol, ethanol and glycol monomethyl ether; the temperature does not exceed 35C.; the cathode is Hg or Cd although reference is made to using other metals not affected by the electrolyte such as Cu, Zn, Al, Sn, Pb; and the anode is chlorine-resistant or economically expendable. The anode may be located in a separate compartment from the cathode by means of a porous diaphragm e. g. porcelain. The cathode compartment may be externally heated and provided with a thermostat and a magnetically operated stirrer. The anolyte may be an aqueous solution of one of the ionizable salts specified for the catholyte.
Patent GB-255930-A (GB)
Title: An electric heating device for burning and drying purposes
IPC: B44D3/16
Filed: 1925-04-28
Abstract: 255,930. Cooper, W. April 28, 1925. Electric stoves.-A device primarily intended for removing paint but which may be used for drying the surfaces of sand moulds and other purposes, comprises a detachable electric heater mounted in a holder B having a closed back and an open front, an insulating handle C formed with a prong c and connected at one end to the back holder by a screw c<1> and insulating washers, preferably bone and asbestos washers arranged alternately, and means for connecting an intermediate portion of the prong to the holder and insulating it therefrom. This connecting and insulating means comprises a bracket D and screws c<3>, c<4> fitted with insulating washers. Terminal plugs a<4> connected to the end of the heating resistance engage sockets held in clips d secured to the bracket D by a bolt d<2>. The current supply leads pass through the handle, which is provided with a switch. Specification 207,866 is referred to.
Patent GB-527419-A (GB)
Title: Prevention of explosions and backfire in oxy-acetylene or the like burners
IPC: F23D14/82
Filed: 1939-04-11
Abstract: 527,419. Blowpipe burners. NATIONAL CYLINDER GAS CO. April 11, 1939, No. 11030. Convention date, July 1, 1938. [Class 75 (i)] [Also in Group XXIX] In an oxy-acetylene or like torch, particularly for surface hardening, in which the supply pipes 10, 11 communicate through a mixing-chamber in the handle 16 with the tip 18, the stop valves in the pipes 10, 11 are operated simultaneously and the oxygen valve is adapted, on closing, to open the pipe 11 on the discharge side directly to the atmosphere so as to reduce the proportion of oxygen in the mixture and thereby prevent backfiring. As shown in Fig. 4, the acetylene valve comprises a slidable sleeve 22 having a chamber 23 adapted to be brought into register with annular series of ports 20, 21 on opposite sides of a partition 19 in the pipe 10. In the closed position, the ports 21 register with a closed chamber 27. Spring-pressed gaskets 24, 25, 28 are provided. In the oxygen valve, Fig. 5, the chamber 27 is omitted so that, in the closed position, oxygen can escape through the ports 21. The sleeves 22 are provided with annular grooves 39 engaged by pivoted levers 33, each engaged between a pair of arms 36 on a common operating lever 30. The initial setting of the levers 33 may be adjusted by means of screws 37. Alternatively the lever 30 may be adapted to engage the sleeves directly. In a modification, the pipes 10, 11 are provided with a common stop cock 40, Fig. 8, the oxygen pipe 11 on the discharge side being connected in the closed position, with an outlet 44 through the main oxygen passage 42 and a branch 43. Specification 525,971 is referred to.
Patent GB-914399-A (GB)
Title: Improvements in directional aerials
IPC: H01Q21/22
Filed: 1960-03-29
Abstract: 914,399. Aerials; R.F. couplings. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 29, 1960 [April 10, 1959], No. 11084/60. Class 40 (7). A directional aerial comprises an array of parallel and similar radiating sources located in one plane to form a rectangular aerial aperture, the longitudinal axes of adjacent sources being less than the operating wavelength apart, and includes between the energy source and each radiating source phase and amplitude adjusting means and means for preventing energy from flowing towards the energy source. In a first embodiment, Figs. 1 and 2, the aerial aperture is formed by the mouths 1-5 of waveguides 11-15. Each guide is connected to a junction 201 and the energy source 20 through separate ferrite insulators 21-25, attenuators 31-35, and phase shifters 41-15. By adjustment of the attenuators and phase shifters, a highly directional radiation beam is obtained: The guides 11-15 are preferably tapered towards their mouths, this providing matching sections. A second embodiment, Figs. 7 and 8, for use at lower frequencies comprises an array of dipoles 1<SP>1</SP>-5<SP>1</SP>. The means for preventing reverse energy flow are valves 31<SP>1</SP>-35<SP>1</SP>, and the adjustable phase shifters and attenuators are as 51<SP>1</SP>, 55<SP>1</SP>.
Patent GB-546610-A (GB)
Title: Improvements in or relating to a microscope objective
IPC: G02B21/02
Filed: 1941-09-01
Abstract: 546,610. Microscope objectives. KODAK, Ltd. Sept. 1, 1941, No. 11164. Convention date, Jan. 6. [Class 97 (i)] The first components I of a microscope objective is a positive element having an index of refraction between 1.7 and 2.0; it may have a high dispersive index, e.g. between 45 and 50, or a refractive index about 1.74, its first surface being immersed in methylene iodide. The objective may include a hyperchromatic doublet III, IV, near the first component, and also one or more doublets V, VI, VII, VIII, each with a positive fluorite element. A positive meniscus component II with an aplanatic rear surface may be included between the components I, III. The Specification includes complete data for one example in which component I is strongly positive, has a front surface much weaker than the rear surface and a thickness of the same order of magnitude as the focal length of the objective. U.S.A. Specification 2,050,024 is referred to.
Patent GB-768779-A (GB)
Title: Improvements in or relating to the preparation of glycerine
IPC: C11D19/00
Filed: 1955-04-18
Abstract: Glycerin is prepared by hydrolysing a 1-halo-2.3-epoxy-propane by contacting it with an aqueous solution of an inorganic carbonate at a temperature between 130 DEG  and 200 DEG  C. for a period between about 5 and 20 minutes in the presence of carbon dioxide under a pressure sufficient to maintain the reactants in the liquid phase. The "inorganic carbonates" are inorganic carbonate or bicarbonate salts or mixtures thereof.  The preferred inorganic carbonates are the alkali metal carbonates and bicarbonates.  The process may be carried out batchwise, intermittently or continuously.  The starting 1-halo-2.3-epoxypropane can be formed in the reaction mixture from the corresponding dihalohydroxypropane by using an increased amount of sodium carbonate.  In the examples: (a) 1-chloro-2.3-epoxy propane, produced by steam stripping an allyl chloride chlorohydrination product in the presence of a base, is hydrolysed by contacting with sodium carbonate under varying conditions to give glycerin.  Specification 711,657 is referred to.
Patent GB-895662-A (GB)
Title: Measuring equipment, particularly suitable for machine tools comprising a measuring scale capable of displacement relative to an optical reading device
IPC: B23Q17/22
Filed: 1960-03-30
Abstract: 895,662. Machine-tool details. HENSOLDT & SOHNE OPTISCHE A.G., M. March 30, 1960 [April 17, 1959], No. 11189/60. Class 83 (3). [Also in Groups XIX and XX] In a machine tool a measuring device comprises a measuring scale adjustable relative to an optical scale-reading device, and a row of numbers displaceable relative to the scale, but capable of movement with the scale, the scale and numbers being projected by the optical device. A base 1 attached to the part of the machine to be displaced carries an adjustable slide 3, having a measuring scale 4 marked with double lines at centimetre intervals. A second slide 6 movable on the slide 3 has numbers 7 thereon, and light rays from the numbers and scale are projected into a scale reading device 8 through prisms 11, 12, and an objective 13, the scale being illuminated through a surface 22 on the prism 11 by a light source 11a. The head of the device 8 is rotatable by a knurled ring 15, and a cam on the ring displaces a glass plate 17 having a scale 14 thereon, in a direction normal to the axis of the ring. The scale 14 subdivides one interval of the image of the scale 4 into ten parts, and the ring has a circular millimetre scale 18, which co-operates with a fixed index 19. In operation to enable a zero basis of measurement without returning the machine parts to their original position, the slide 6 is adjusted by a screw 10 until the figure 0 appears in the device 8 next to a twin stroke, instead of the number 50, and the ring 15 is rotated until the index 19 points to zero on the scale 18. The slide 3 along with the scale 4 and the numbers 7, are now adjusted by a screw 9 until the zero on the scale 14 is framed by the image of the twin strokes of the scale 4. This setting may however be obtained by displacing the device 8 in a guide 20, by a screw 21. In a modification, the slide 6, having the numbers 7 thereon may be normal to the scale 4, a diaphragm preventing the ray path of the numbers appearing on the scale 4. In a further modification, the numbers 7 are carried by a transparent tape wrapped on rollers mounted vertically on the base 3, and the scale 4 is displaced by a rack and pinion drive. In a still further modification, the tape is of metal, lies adjacent the scale 4, and is adjustable on horizontal rollers. The metal tape may be wide enough to cover the double lines on the scale 4, and windows may be provided through which the lines are viewed. The vertically mounted tape may be replaced by an octagonal rotatable drum having a row of numbers on each face displaced from each other so that on rotation of the drum a figure 0 may be placed next to a selected stroke on the scale 4.
Patent GB-108520-A (GB)
Title: Improvements in and relating to Drying and Aerating Machines.
Inventor: SPARKS JONAS ALBERT
IPC: B04B15/12
Filed: 1916-08-08
Abstract: 108,520. Sparks, J. A., Clark, C. E., and Clark, W. M. Aug. 8, 1916. Treating substances with gases.-A drying and aerating machine for use in connexion with processes of dry cleaning comprises a rotatable perforated basket 37, carried by a spider 43 on a shaft 47 and enclosed in a casing 33 having an air spout 60 and an outlet 35. The currents of air set up by the rotation of the basket induce an inward current of air through the spout 60 which passes through and effectually aerates the articles to be dried. The outer casing has a conical lid 58 and the basket a frusto-conical cover 40. The basket spindle 47 is supported on a ball thrust bearing 50 and is steadied by a bearing sleeve 56.
Patent GB-586324-A (GB)
Title: Improvements in and relating to the preservation of grain and the like
IPC: A23B9/18
Filed: 1944-06-12
Abstract: 586,324. Drying and conditioning grain &c. JEANS, T. K. June 12, 1944, No. 11228. [Class 58] [Also in Group XIII] Grain and the like stored in sacks, bins, &c. is dried and conditioned by heated and/or dried air which is preferably distributed therethrough by a perforated tube a having a pointed cap b at its lower end and of such length as to extend from the mouth to near the bottom of the sack, &c., the air being supplied to said tube by a portable unit comprising an electric fan f, an electric, &c., heating chamber e and an inner perforated feed tube w. A wheelshaped device g, attached to a guard t at the upper end of the tube a, may be provided to facilitate handling and for retaining open the mouth of the sack, and a thermostat chamber d is preferably disposed between the feed tube w and heating chamber e. In a modification, the fan f is mounted on a truck and is connected to the feed tube w, &c., by a flexible pipe. The tube a may be left in the sack to serve as a ventilator.
Patent GB-179917-A (GB)
Title: Medical apparatus for hot air supply
IPC: A61H33/08
Filed: 1922-04-21
Abstract: 179,917. Viard, M. May 11, 1921, [Convention date]. Air, gas, and vapour injectors and douches. - A hot-air douche for medical treatment consists of a lamp like a soldering blowlamp carrying a chimney porton into which air is drawn by injector action supplemented by an airinsufflation tube. The fuelreservoir a is surrounded by a corrugated jacket c, serving as a hand-grip, and is screwed to a body-piece d. through which the nipple tube f passes. A needle-valve h controls the supply of gasoline, the vaporization of which is started by burning spirits in the attached cup. Supported by the body-piece d are the air inlet sleeve g and chimney k. The hot gases from the lamp passing into this chimney produce an injector action at the inlet-end n. Air may also be blown into the chimney by the operator through the insufflation tube l.
Patent GB-830336-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F02M69/00
Filed: 1956-04-13
Abstract: 830,336. Two-stroke engines. EBERHARDT, H., and ZIMMERMANN, H. G. April 13, 1956 [April 14, 1955], No. 11400/56. Classes 7(2) and 7(3) A pump piston 4, Figs. 3 and 4, delivers combustible mixture tangentially into a power cylinder 1 via a duct 6 which is horizontal or downwardly directed on to the working piston 2 which may be flat-topped or have a co-acting recess 13, scavenging air inlet ports 10 and an exhaust port 11 being provided. The duct 6 is fed by a pump piston duct 7 which lies adjacent the power cylinder wall to effect charge pre-heating and which ends in a cylindrical or tapered portion 8. The piston 4 may compress the mixture to 3 or 6 atmospheres and its swept volume may be 5% to 15% of that of the piston 2. In Fig. 6 there are two ducts 6 which may have two coacting recesses 13 in the flat-topped or slightly domed working piston. In Fig. 7 (not shown) a piston 4 is driven from the main crankshaft, in Fig. 8 (not shown) it is driven from an auxiliary shaft chain-driven from the main crankshaft, whilst Fig. 9 shows such an auxiliary shaft 23 driving an inverted piston 4. Reference is made to the use of carburetted fuel oil.
Patent GB-254447-A (GB)
Title: Improvements in spinning mules
IPC: D01H3/04
Filed: 1926-02-01
Abstract: 254,447. Stocks, R., and Haworth, G. Feb. 1, 1926. No Patent granted (Sealing fee not paid). Mules.-In an arrangement for driving the tin roller at two speeds during the outward run, the rim band pulley A is loose on the tin roller shaft C and is mounted to slide on a sleeve carrying a bevel pinion F. The pulley A is formed as one part of a clutch and can be moved by a lever E to engage the other part B fixed on the shaft. When the clutch is open at the commencement of the outward run, the drive is transmitted from the pulley A through reducing gearing F, G, G<1>, H. The gears G, G<1> are mounted on the shaft and the gear H is held stationary by a pawl J engaging a ratchet wheel I on the boss of the gear. When the clutch is closed and the wheel I is freed, the drive is transmitted directly through the clutch. The lever E and the pawl J are operated by a sliding rod D controlled by a spring M, and carrying an inclined arm K to operate the pawl J. The rod D is locked by a catch which is released bv an incline on the headstock. The rod is returned by the inclined slide P engaging a bowl O on the bar.
Patent GB-1044598-A (GB)
Title: Improvements in overhead tow conveyors
IPC: B61B10/02
Filed: 1965-03-18
Abstract: 1,044,598. Conveyer systems. JERVIS B. WEBB CO. March 18, 1965 [March 20, 1964], No. 11435/65. Heading B7L. An overhead tow conveyer comprises an overhead track 22, Fig. 3, trolleys 24 running on the track and secured to an endless driving chain 26, a pusher 20 secured to each pair of trolleys 24 and engaging over the upper end 15 of a tow mast upstanding from a tow truck movable over a floor. Each pusher 20 comprises a base structure 30 from which are depended side members 31, 32, Fig. 5, parallel to the direction of movement of the chain and a pusher member 36 extending transversely of the direction of chain movement, each side member having an opening adjacent the pusher member 36 to permit passage therethrough, in a transverse direction, of the mast end 15, a retainer 46 pivoted at 38 on the pusher normally blocking the movement of the mast end, and means, e.g. followers 54, 55 on side flanges 51, 52 of the retainer 46 engageable with the inclined end 77 of a cam track 76, Fig. 2 (not shown), to move the retainer to an upper non-blocking position to permit the mast to be disengaged from the pusher by engagement with a switch 74 for diverting the truck to a branch line. The top of the mast 12 has an enlarged cap 16 so that forward movement of the mast relative to the pusher is limited by abutment of the cap with holdback members 40, 41 also pivoted at 38 on the pusher. Upper portions 62 of the hold-back member are received in slots in the base 30 when the members are raised as the mast end 15, 16 enters the pusher. The side members 31, 32 each have a flange 34 so that when the vertical distance between the track 22 and the floor is increased, at an incline on the floor, Fig. 1 (not shown), the flanges 34 lift the cap 16 and thus the front end of the truck to improve the control of the truck movement on the incline. The retainer 46 may be raised manually to permit release of the mast transversely from the pusher. The mast is hollow, as shown in dotted lines in Fig. 3, to receive a release rod provided at its lower end with a handle movable in a bayonet slot on the mast.