baber/WOPTO huggingface dataset:
Patent GB-732108-A (GB)
Title: Improvements in or relating to plain bearings
Inventor: LOVE PHIL PRINCE
IPC: F16C33/24
Filed: 1951-10-19
Abstract: 732,108. Bearings. GLACIER METAL CO., Ltd. Sept. 24, 1952 [Oct. 19, 1951], No. 24441/51. Class 12 (1). [Also in Group VIII] A plain bearing which may be steel backed. comprises a porous metallic matrix incorporating poly-tetra-fluoro-ethylene so as to provide a bearing surface in which the metal is covered by at least a smear of poly-tetra-fluoro-ethylene, the metallic structure also having pores or the like containing another solid lubricant such as molybdenum disulphide capable of forming a film on the surface of a rotatable element running against the surface. Preferably, at least the surface pores are filled with polytetra-fluoro-ethylene which may be applied in suspension in alcohol for example under alternately applied vacuum and air pressure, (see Group VIII), sufficient poly-tetra-fluoroethylene being applied to leave a film over the metal. The surface is then indented to contain the second lubricant. The molybdenum disulphide may be applied in the form of a paste containing sugar syrup, and the bearing is then heated at about 300‹ C. until the syrup has reached a suitable decomposition form. The paste is then pressed into the cavities and baked, three applications usually being sufficient. Alternatively, an excess of the paste may be spread on, heated and pressed, and the excess removed by scraping or machining. The matrix may consist of sintered metal powders, such as copper-tin containing 10 per cent tin, and may be made porous by selective etching of one metal component, or by chemical or electro-chemical treatment. In a modification the second lubricant may also be applied in liquid suspension under vacuum and air pressure. Specifications 657,080, 677,240 and 711,620 are referred to.
Patent GB-318379-A (GB)
Title: Improvements in or relating to lasts, last-supports and stretchers for boots and shoes
IPC: A43D3/08
Filed: 1928-08-25
Abstract: 318,379. Cann, T. E. Aug. 25, 1928. Lasts; last supports for hand work.-A last or 'last stand wherein the fore part and/or the heel part is or are formed in sections, so as to be capable of expansion and contraction in a lateral direction, is provided with an operating member located between the sections in contact with each and operative, upon relative movement between it and the sections, to effect the required expansion. A rotatable cam 17, Fig. 1, may be located between the sections 12 of the fore part and operated by helical gearing actuated by a hand-wheel 22. The sections are guided in a groove 13, curved so that the separation is greater at the waist than at the toe end. In addition, the heel part 11 may be longitudinally adjustable. It is retained by a tapered dovetail 10 engaging a slide 5 moved longitudinally of the device by a screw 24 actuated by a hand-wheel 26. A ratchet 30 is provided for the hand-wheel 26. The screw 24 may be right- and left-hand. The parts mentioned are carried by a base-plate 3 which can be moved about a central pivot on a member 1 and be locked in adjusted position by a handle 37, Fig. 5. The plate 1 is itself pivoted at 36 to a fixed base-plate 31, so that the last can be thrown over on its side, for convenience in certain operations. The cam 17 is provided with limit stops at the extremes of its movement. In a modification, the fore part 12<a>, Fig. 6, are carried on a tongue 42 and normally drawn together by a spring 43. In another modification, the fore part halves 12<b>, Fig. 8, are moved apart while remaining parallel by a wedge 44 slit longitudinally. Specifications 21989/13 and 200,700 are referred to.
Patent GB-244882-A (GB)
Abstract: 244,882. Breeden, F., Breeden, F. V., and Kirk, T. Nov. 6, 1924. Moulding-machines of the inverting flask type are arranged so that after inversion about a pivot 8 and unclamping, the flask 6 and pattern-plate 5 are drawn by turning them back into their original position. The flask 6 has bevelled inner walls 6<a> and with the plate 5 is held by clamps 7a to a frame 7 pivoted at 8, counterbalanced by a weight 11, and held in normal position by a spring catch 21, Fig. 3. Sand is filled in and pressed by hand and then a plate 19 is placed in position and clamped by an arm 14 operated by a lever 20 which is held by a catch 7<e>. After inversion on to adjustable supports 26, Fig. 1, the clamp is released and the flask &c. is swung back. leaving the mould on the plate 19 ready for drying. Pattern-plates with patterns on opposite faces or side by side or with recesses for making half-core patterns may be employed. Guiding moulds.-The plates also have conical pins to form corresponding holes in the faces of the moulds so that the mould halves can be aligned by taper studs.
Patent GB-600420-A (GB)
Title: Lubricating and penetrating oil
IPC: C10M129/24
Filed: 1945-09-21
Abstract: A penetrating lubricating oil composition for loosening "frozen" bolts &c. and other purposes contains up to 25 per cent and preferably 3 to 20 per cent by volume cyclohexanone.  It may comprise cyclohexanone, e.g. 5 per cent, kerosene, e.g. 20 per cent, and lubricating oil.  The lubricating oil may be a petroleum hydrocarbon oil of about 80 to 100 S.U.S. at 100 DEG  F.  It is stated that the coefficients of friction of mixtures of cyclohexanone and a lubricating oil containing up to 25 per cent of cyclohexanone are lower than that of the lubricating oil alone, the minimum coefficient of friction being given by a mixture containing about 10 per cent of cyclohexanone.  It is also stated that mixtures containing 75, 20 and 5 per cent by volume of lubricating oil, kerosene and cyclohexanone respectively are superior for loosening "frozen" bolts to mixtures in which the cyclohexanone is replaced by carbon tetrachloride.
Patent GB-441215-A (GB)
Title: Improvements relating to grinding, blending and emulsifying machines
IPC: B02C13/22
Filed: 1934-08-27
Abstract: 441,215. Hoppers. S.O.S. PATENTS CO., Ltd., and REDDROP, H. C., 156, Charing Cross Road, London. Aug. 27, 1934, No. 24647. [Class 78 (i)] [See also Group II] A feeding device for a mill comprises an open-ended hopper 37 with an adjustable slide 39, Fig. 1, the bottom of the hopper being covered with a vibrating tray 42. The tray is eccentrically mounted on a pin 43 and is provided with a pair of depending lugs or stirrup 44 engaging an eccentrically mounted roller 45 driven by a shaft 46.
Patent GB-771749-A (GB)
Title: A method of evacuating natural and artificial products and an apparatus for carrying out said method
IPC: B65B31/00
Filed: 1955-08-30
Abstract: 771,749. Evacuating apparatus, AARDENBURG N. V., L. Aug. 30, 1955 [Sept. 1, 1954], No. 24786/55. Class 8(1) In a method of evacuating natural and artificial products, the product to be treated is introduced into, and removed from, a zone in which a vacuum is maintained, via a liquid lock. A U-shaped tube has legs 1 extending downwardly into open liquid containers 2 and a web 3 evacuated by a machine connected to a conduit 4. The product to be evacuated may be passed by means of a mechanical conveying means continuously via one liquid lock 2 through the tube and evacuated web 3 to be discharged via the other liquid lock. Conveyance of the product through the tube may be effected by maintaining a flow of liquid along the lower portion of the web 3, this being done by keeping the level of one liquid lock lower than that of the other, or the two liquid locks. may be connected by a conduit 5 and the liquid circulated by pumping. If it is desired to replace the gas or liquid expelled from the product by a specific liquid. the apparatus may be kept filled with said liquid so that the product which has passed the evacuation zone 3 may suck up same during its further travel through the apparatus.
Patent GB-791584-A (GB)
Title: Improvements in and relating to cutters for shaving gear wheels
IPC: B23F21/28
Filed: 1956-08-14
Abstract: 791,584.  Making milling-cutters. NATIONAL BROACH & MACHINE CO. Aug. 14, 1956 [Oct. 3, 1955], No. 24807/56. Classes 83 (2) and 83 (3). A shaving-cutter in the form of a plain spur or helical conical-involute gear comprises conical concave surfaces 18 forming the bottoms of the tooth spaces, the surfaces 18 intersecting the sides of the teeth in the surface 22 of an imaginary cylinder concentric with the cutter. The latter cylinder may be the base cylinder of the tooth involutes on one or other side of the teeth. The surfaces 18 are formed by drilling a cylindrical hole and then reaming it to size. The grooves 32 are cut in each tooth surface by a planing cutter passing into the clearance space at the tooth root.
Patent GB-1144298-A (GB)
Title: Radiation detector
IPC: H01L31/00
Filed: 1967-05-30
Abstract: 1,144,298. Semi-conductor photo-sensitive circuits. COMPAGNIE GENERALE D'ELECTRICITE. 30 May, 1967 [15 June, 1966], No. 24904/67. Heading H3T. [Also in Division H1] A photo-sensitive PN junction diode P 2 N 3  is connected across the collector junction P 1 N 2  of a transistor N 1 P 1 N 2  in such polarity that, when energized as shown, the emitter junction of the transistor will be forwardly biased and both the collector junction and the diode junction will be reverse biased. The collector junction is required to have a higher breakdown voltage than the diode junction, and in use the latter is biased to a value just below breakdown. Any incident radiation, by creating electron-hole pairs, will thus produce a controlled breakdown or " avalanche state " in which-as explained with reference to a characteristic diagram, Fig. 4 (not shown)- the output, as amplified by the transistor and detected at the terminals 33 and 34, is related to radiation intensity. The diode and transistor may be constructed as a single integrated device, the structure of which is depicted in Fig. 5 (not shown, but see Division H1). A matrix embodying a plurality of such diode-transistor pairs may also be manufactured as a single integrated device.
Patent GB-870695-A (GB)
Title: A new or improved valve for use in a blow-pipe
Inventor: LJUNGBERG FOLKE ANDERS UNO
IPC: F23D14/46
Filed: 1959-07-21
Abstract: 870,695. Valves. SVENSKA AKTIEBOLAGET GASACCUMULATOR. July 21, 1959, No. 24986/59. Class 135. [Also in Group XI] A valve for controlling cutting oxygen in a blow-pipe comprises a piston 9 having on one end a sealing ring 13 insertable into a cylindrical outlet 10 leading to the blow-pipe nozzle, and on its other end a further sealing ring 13 which slides in a guide sleeve 12 having an internal shoulder 14 serving as a stop both for opening and closing the valve. In the open position the outer end of the piston 9 abuts the stop 14 and in the closed position the end of a control plunger 11 screwed to the piston 9 and slidable in the guide sleeve 12 abuts the stop 14.
Patent GB-987102-A (GB)
Title: Improvements in multicolour intaglio printing by means of a single engraved printingplate
IPC: B41F9/02
Filed: 1961-07-11
Abstract: 987,102. Printing apparatus. G. GIORI. July 11, 1961, No. 25053/61. Heading B6C. In a multi-colour intaglio rotary press comprising sheet feeding rollers 1, 2, impression cylinder 4 and engraved plate cylinder 5 each of three inking mechanisms I, II, III, incorporates a hard, e.g. metallic, surfaced cylinder 13 which bears a partial image to thereby determine the areas of the plate on the cylinder 5 which are to be inked in the particular colour being fed by its associated mechanism. Each partial image is transferred from its associated cylinder 13 to the engraved plate upon the cylinder 5 through a transfer roller 12 having a smooth surface of resilient material. The surface of each cylinder 13 may be prepared by etching or cutting or may be magnetized in those areas which correspond to areas of the finished image that are to be inked in the relevant colour. Alternatively, ink-repelling means of the type used for lithographic printing processes may be employed.
Patent GB-876395-A (GB)
Title: Improvements in or relating to rubber compositions based on co-polymers of butadieneand acrylonitrile
Inventor: LIGGINS TOM
IPC: C08L9/02
Filed: 1957-08-08
Abstract: An elastic, non-cellular rubber-like composition, which will undergo a relatively small increase in volume when immersed in ester-base lubricants and negligible loss of volume when immersed in mineral oils, comprises essentially a butadiene-acrylonitrile co-polymer and a proportion of polyethylene constituting 5%-15%, preferably 10%-15%, of the total weight of the copolymer and polyethylene.  The molecular weight of the polyethylene preferably exceeds 20,000.  In preparing mixes, polyethylene powder may be blended with softened nitrile rubber along with other compounding ingredients on a conventional two-roll mill at a temperature above the melting point of the polyethylene, or the polyethylene may be blended with part of the nitrile rubber, and the remaining nitrile rubber and other compounding ingredients are added after the blend has been allowed to stand for several hours.  Examples are directed to compositions comprising butadiene-acrylonitrile copolymers, polyethylene of molecular weights 2,000, 24,000, 32,000 and 45,000, respectively, lampblack and suitable curing agents; in some, there are employed furnace black for lampblack and dicumyl peroxide as the curing agent instead of the conventional sulphur system.
Patent GB-251932-A (GB)
Title: Improved separation and recovery of arsenic and tin
IPC: C01G28/02
Filed: 1925-10-09
Abstract: 251,932. Vulcan Detinning Co., (Assignees of Lahey, J. A.). May 6,1925, [Convention date]. Tin, depositing.-Tin is deposited from a preferably hot solution of sodium stannate which is preferably circulated through the electrolytic cell. Both electrodes may be of iron or other insoluble material; the cathodes if desired may be of tin. Reference has been, directed by the Comptroller to Specification 245,479, [Class 82 (i), Metals, Extracting &c.].
Patent GB-322009-A (GB)
Title: Improvements in dog-racing apparatus
IPC: A63K1/02
Filed: 1928-09-03
Abstract: 322,009. Varvel, S. Le F. Sept. 3, 1928. Dog-racing apparatus.-The lure-carrying arm is in two parts 10, 11 pivoted together at 12, the part 10 carrying the lure 15 and the part 11 being carried on the conveyer 14 driven over a track 13 by motor 32. Means are also provided whereby the lure automatically hurdles obstacles, and for automatically lifting the lure and maintaining it elevated off the track when the electric current is cut off. A pillar 16 on the part 10 has an horizontal pin 17 moving in the slot 19 of an arcuate link 18. When the ground roller 39 on the part 10 meets a ramp 42 on the track the part 10 moves about pivot 12 and pin 17 moves along slot 19 so that the lure jumps the obstacle 41. A compression spring 33 between pillar 16 and part 11 damps this turning movement. The parts return by gravity. The link 18 is pivoted at 21 to a rod 20 which passes through an electromagnet 22 and carries the armature plate 30 thereof. A spring 29 is interposed between the head 28 of rod 20 and a. fixed bearing 27. 23, 24, 25 form the soft iron outer shell of the magnet; the latter being in electrical series with the motor 32. The rod 10 is pulled by hand to the horizonal position so that the head 28 is moved towards bearing 27, compressing spring 29 and bringing armature 30 up to the magnet. Current is then switched on, retaining the armature in position. If for any reason the current to magnet 22 or motor 23 is cut off the spring 29 moves the rod 20 to the right and the part 10 of the rod is raised about pivot 12. Details of the ground roller device 39 are described.
Patent GB-1007339-A (GB)
Title: Method of pyrolysis and production of terpene compounds
Inventor: BLACKMORE RICHARD LYE
IPC: C07C5/31
Filed: 1962-07-04
Abstract: Pyrolysable compounds, e.g. terpenes, which produce a thermally unstable pyrolysate are partially pyrolysed in a liquid environment by means of an element immersed therein and heated to at least the pyrolysis temperature whilst the temperature of the bulk of the liquid is maintained below that at which apprciable change in the structure or composition of the pyrolysate occurs. The liquid may be maintained under such reduced pressure that it is in a condition of ebullition.  A continous or semi-continuous process may be operated by withdrawing a portion of the liquid, removing the pyrolysate therefrom, e.g. by distillation, and returning the unchanged liquid to the process.  The pyrolysis of a -pinene with an electric filament heated to at least 500 DEG  C. in a liquid, the bulk of which is maintained below 100 DEG  C., is described.  The pyrolysis of b -pinene to myrcene and pinane to 3,7-dimethyl-1,6-octadiene is also described.
Patent GB-465709-A (GB)
Title: Improvements in mechanical loading apparatus
IPC: B66C3/10
Filed: 1936-09-21
Abstract: 465,709. Loading - apparatus. SOC. FRANCAISE DE CONSTRUCTION DE BENNES AUTOMATIQUES. Sept. 21,1936, No. 25632. Convention date, Sept. 25, 1935. [Classes 78 (iii) and 78 (iv)] A wheeled staith 4 carries a non-luffing fixed or slueing jib 5, a pivoted depending arm 7 on the jib carrying the crown 9 for a single-chain grab B, a receptacle 21 movable in guides 19, and two winches 18, 29. Operation of winch 29 hauls in the chain 10 to close the grab B and raise it into contact with the crown 9. Paying out of the chain first swings the arm 7 so that the grab registers with the receptacle 21 and then opens the grab to dump the contents into the receptacle ; the operation being repeated until the receptacle is filled. Operation of the winch 29 then hauls chain 24 to raise the receptacle to the top of the guides 19. A bottom door is then opened and the contents dumped laterally into a vehicle standing at one side of the apparatus. In the modified construction shown in Fig. 4, the arm 7 is pivoted at 31 to a link 32, which is pivoted on the fixed jib at 33, and also has a sliding movement over a pulley 35 fixed to the jib. In operation, the link 32 moves round the circle C and the crown 9 moves along the path a b c d e.
Patent GB-1055376-A (GB)
Title: Process
IPC: C10G45/40
Filed: 1965-06-17
Abstract: A method for hydrotreating a pyrolysis gasoline fraction separated from a gaseous mixture produced by the pyrolysis of a hydrocarbon boiling above propane to hydrogenate the diolefins contained therein comprises (a) introducing the pyrolysis gasoline fraction and a gaseous stream containing hydrogen into a reaction zone containing a noble metal catalyst, (b) maintaining the temperature in the zone at 49 DEG  to 204 DEG  C. and (c) withdrawing a hydrotreated product from the zone, a portion of the hydrotreated product being admixed with the pyrolysis gasoline feed fraction. A platinum or palladium catalyst is used.  The pressure may be from 200 to 1000 p.s.i.g.
Patent GB-877001-A (GB)
Title: Float made from cellular material
IPC: G01F23/76
Filed: 1958-08-11
Abstract: 877,001. Indicating liquid levels. FRANKMANN, H. Oct. 29, 1959 [Aug. 11, 1958], No. 25668/58. Class 123(1) [Also in Group XXVII] A gauge float consists of a body part and a protective cover therefor over at least those parts normally subjected to wear, the body part being of microcellular plastic material. As shown in Fig. 1 the body part 11 is of microcellular plastic material. The protective covering 12 may be of aluminium sheeting. In Fig. 3 the body part 11 of microcellular plastic material has a bore 13 axially thereof in which is located a metallic sleeve 14. The floats will retain their buoyancy even if punctured. The microcellular plastic material may be drilled and may provide a support for ancillary members. In a modification the body part is provided with a cylindrical sleeve thereabout and a concave disc in the top surface, the concave disc receiving one end of a pivoted valve operating lever. The protective covering may be of plastic material. The protective cover whether metallic or otherwise may be applied as a sheet or may be applied in liquid form.
Patent GB-1259855-A (GB)
Title: Strip handling apparatus
Inventor: WANGERIN ELMER OSCAR
IPC: G03B21/11
Filed: 1969-05-20
Abstract: 1,259,855. Film-strip handling apparatus. EASTMAN KODAK CO. May 20, 1969 [May 20, 1968], No.25684/69. Headings G2A and G2E. A strip handling apparatus, such as a film reader or cine projector, has automatic threading means for separating the leading end of the strip from the supply roll and securing it to the take-up reel and in addition has a spindle drive mechanism comprising a drive-shaft selectively rotatable in opposite directions and a drive transfer means which operates so that in the winding direction the take-up reel spindle rotates faster than the supply reel spindle and in the rewind direction the drive is disconnected from the take-up spindle and applied directly to the supply spindle. As shown in a film-reader including the threading means described in Specification 1,219,411 driveshaft 59, driven by reversible motor 67, supports helical gears 71, 72 in meshing engagement with corresponding helical gears 73, 74 mounted on supply reel and take-up reel spindles 18 and 19 respectively, for both axial and rotational movement relative thereto so that when drive-shaft 59 rotates in a winding direction the helical gears 73, 74 are pushed downwards allowing castellated attachment 87 to engage pin 88, thus transferring the drive to spindle 19, and similar attachment 96 to disengage pin 97 on spindle 18. In this position a spur gear 75 attached to gear 73 engages gear 77 and the drive is transmitted to spindle 18 via further gears 81, 82 the latter being rotatably mounted on spindle 18 but urged into driving connection with spindle 18 through toothed clutch members 84, 85. On rewinding, the direction of rotation of shaft 59 is reversed and gears 73 and 74 are forced upwards on spindles 18, 19 to disengage the drive from spindle 19 and to apply it directly to spindle 18. A friction brake 89 is provided on take-up spindle 19 and is urged upwards into engagement with deck 11 by spring, 94, the frictional drag being insufficient to prevent winding rotation of take-up spindle 19.
Patent GB-193352-A (GB)
Title: Improvements in hoists
IPC: B66D3/22
Filed: 1922-09-22
Abstract: 193,352. Johnson, G. W., (Motorbloc Corporation). Sept. 22, 1922. Motor-driven pulley hoists; winches; driving- gear.-Comprises a special power attachment for a hoist of the type adapted to be worked by hand or power, in which the end cover-plate of the motor is formed integral with the casing supporting and enclosing all the shafts of the transmission gear. In the present construction, a toothed wheel 3 is attached to the hand-chain wheel, and. the motor and gearing forming a complete unit is then attached to the hoist casing by a pair of brackets or straps 16. The end plate 15 of the motor casing 4 is formed integral with a onepiece casing which supports a worm shaft 7 and a shaft 12 gearing with the worm at one end and with the wheel 3 at the other end. A slipping clutch is included in the transmission gear.
Patent GB-997810-A (GB)
Title: Process for the manufacture of 2,2,2-trifluoro-ethyl alcohol
IPC: C07C31/34
Filed: 1964-06-22
Abstract: 2,2,2-Trifluoroethanol is prepared by treating fluoral or a hydrate thereof with hydrogen in the presence of a hydrogenation catalyst at elevated temperature, e.g. 50-150 DEG  C., under pressure. Aqueous solutions of the fluoral may be used.