baber/WOPTO huggingface dataset:
Patent GB-1104139-A (GB)
Title: Polytetrafluoroethylene resin sheets and films and process for their production
IPC: C08L27/18
Filed: 1966-05-03
Abstract: Polytetrafluoroethylene films and sheets having planar orientation, as characterized by an A X-ray ratio of 1 to 0.4 and a B X-ray ratio of 0.7 to 0.05, and having a melting point above 340 DEG  C., may be produced by (a) passing the charge through the nip of at least one pair of heated nip rolls to form a flat sheet; (b) folding the sheet so formed back on itself in the direction of rolling; (c) passing the folded sheet through the nip of at least one pair of heated nip rolls in a direction of from 30 to 90 degrees transverse to the previous rolling direction; and (d) repeating steps (b) and (c) a sufficient number of times to obtain a final sheet or film of the desired thickness and orientation and to impart to the sheet or film a melting point above 340 DEG  C., at least the final rollings being conducted through rolls maintained at a temperature of at least 50 DEG  C.  The rolls may be maintained at a temperature of at least 120 DEG  C. during the final rollings. The sheet or film finally produced may be treated at a temperature below the melting point of the sheet or film and not higher than 340 DEG  C. to prevent subsequent delamination of the sheet.  The particulate polymer may be blended with up to 90% by volume of a particulate solid filler prior to being hot rolled.  The blending may be effected in the presence of a volatilizable hydrocarbon liquid (which in this case functions as a lubricant) to form a slurry from which most of the hydrocarbon liquid is filtered off. The filler may be a substance which can be dissolved out of the final sheet or film by means of a solvent for the filler but not for the polymer so that the final film or sheet is thereby rendered porous.  The filler may be finely divided sodium chloride and the salt and the particulate polymer may be mixed in the presence of four volumes of Stoddard solvent which is then filtered off from the mixture.  The final sheet or film may then be leached in warm water containing a detergent for several days to dissolve out the salt and subsequently washed with hot water containing a detergent.
Patent GB-1332374-A (GB)
Title: Prestressed press frame
IPC: B30B15/04
Filed: 1971-06-09
Abstract: 1332374 Press frames SCHLOEMANN AG 9 June 1971 [11 June 1970] 19639/71 Heading B5F  A pre-stressed press frame comprises two opposed load-bearing members 1, 2 spaced apart by thrust members 4, and tensioned members 5 interconnecting the load-bearing members and applying thrust to the thrust members 4, the tensioned members 5 being in the form of plates, each plate having at least one bilaterally-projecting end portion 6 for transmitting force to the respective loadbearing member 1, 2 either directly or through an interposed member 7. As shown, the thrust members 4 are hollow and house the tensioned members 5. The members 5 may extend through openings 8 in the members 1, 2, the openings also having a slot (10) large enough to receive the end portions 6. Alternatively the openings to receive the members 5 may be recesses on the outside of the members 1, 2 provided with cover members (14), Fig. 4 (not shown). Pre-stressing may be effected mechanically or by heating, shims 12 being inserted between the members 2 and 4. Guide strips 13 are provided for a ram 3 operated by an hydraulic cylinder 2a.
Patent GB-240416-A (GB)
Title: Improvements in means for utilizing waste gases in locomotives
IPC: F23M20/00
Filed: 1925-08-05
Abstract: 240,416. Krupp Akt.-Ges., F. Sept. 29, 1924, [Convention date]. Regenerators.-Air heaters of the kind which are placed in the smoke box of the locomotive and have the flue gases drawn through them by means of a blower are arranged in such a manner that the flue gases are subjected only to a comparatively small deflection on their path into the blower. The airheating tubes b<2> are fixed in the smoke-box B between a circular plate b<1> and a casing b<3> communicating with the blower C driven by a steam turbine D, so that the gases are drawn from the smoke tubes a<2> through the tubes b<2> and forced out at the funnel c<1>. Air enters through perforations in the smoke box door b<4>,is deflected by a partition b<5> so as to pass over the tubes b<2>, and passes by a pipe E with a throttle valve e' to the fire-box a<3>. The valve e<1> is connected by a system of levers e<2> - - e<5> with a rod F which prevents the fire door a<4> being opened until the valve e<1> has been closed. In modifications the smoke box has a rectangular cross section so as to accommodate a larger air heater and the air is carried by two lateral pipes to the grate; a feedwater heater may also be interposed between the boiler and the air heater in such a manner that the gases have an almost rectilinear path. A cleaning door may be fitted in the lower part of the plate b<1> allowing of access to the superheater and boiler tubes.
Patent GB-221065-A (GB)
Title: Improvements in or relating to automatic liquid meters
IPC: G01F3/26
Filed: 1923-08-01
Abstract: 221,065. Stiernspetz, F. G. N. Aug. 1, 1923. Liquid-meters. - In an automatic liquid-meter having two oscillating measuring vessels operated by the weight of the liquid which overflows from them into two oscillating containers, the containers are arranged to discharge their contents into that measuring vessel which is about to be filled. The liquid enters the meter through a pipe 2 which divides into two branches 3, 4 leading to measuring vessels 5, 6 respectively. The measuring vessels are mounted on pivoted arms 34 and are guided by a third arm 8. As shown, the vessel 5 is in the raised position and is retained by a catch 9 formed integral with a lever 11 pivoted to the pipe 3. A rod 26 connected to the lever 11 maintains a valve 22 in open position so long as the lever is supported by a catch 17. The vessel 5 is adapted to overflow when full into a container 27, causing the container to descend and rotate a shaft 20 upon which it is mounted. As the shaft 20 rotates, a projection 21 on the shaft trips the catch 17 and allows the lever 11 to fall, thus closing the valve 22 and releasing the vessel 5, which as it descends raises the vessel 6 into the filling position, while a yoke 45 engages the arm 8 and raises the discharge valve 43. Pins 32 projecting from arms 31 on the rod 20 engage recesses 33 in the pivot arms 34, so that as the arms 34 are turned the container 27 is raised and discharges its contents into the vessel 6, while a second container 28 is brought into position to receive the overflow from that vessel. An inverted pendulum 40, Fig. 6, serves to keep the measuring vessels in their extreme positions. A float 56 causes a catch 52, Fig. 2, to engage recesses 50, 51 in a quadrant 49 connected to the shaft 20 by an arm 48, and so prevents the rotation of the shaft until the casing 1 is empty.
Patent GB-860353-A (GB)
Title: Improvements in polymerisation of ethylene
IPC: C08F10/00
Filed: 1958-06-20
Abstract: Polyethylene is made by contacting ethylene with a catalyst formed by the reaction of an aluminium trialkyl or triaryl compound and a metal alcoholate of the general formula <FORM:0860353/IV (a)/1> where M is titanium, zirconium, hafnium, thorium, vanadium, niobium, or tantalum, and R1, R2, R3, R4 and R5 are hydrogen atoms or hydrocarbon radicals which may be linked to form a ring and n is an integer of at least one and not greater than the normal valency state of the metal. The polymerization is preferably effected in the absence of water, and a compound containing hydroxyl groups, and in the presence of a hydrocarbon solvents.  The metal alcoholate may be tetra-alkyl, tetra-methallyl, tetra-cinnamyl, or tetra-geranyl titanate, or vanadyl alloxide, or tetra-methallyl vanadate.  The aluminium compound may be aluminium tri-isobutyl, or triethyl, or triphenyl. The hydrocarbon solvent may be benzene, xylene, cyclohexane, or heptane.  The polymer of ethylene is branched and is believed to be a copolymer of ethylene and another alphaolefin formed from the ethylene in the polymerizable mixture.  The polymer may be fabricated into articles, films, and sheets, or used to coat wire and other surfaces.ALSO:A polymerization catalyst consists of the reaction product of an aluminium trialkyl or triaryl compound and a metal alcoholate of the general formula <FORM:0860353/III/1> where M is titanium, zirconium, hafnium, thorium, vanadium, niobium, or tantalum, and R1, R2, R3, R4, and R5 are hydrogen atoms or hydrocarbon radicals which may be linked to form a ring, and n is an integer of at least one and not greater than the normal valency state of the metal.  The catalyst is generally prepared in the presence of hydrocarbon solvents.  The metal alcoholate may be tetra-allyl, tetra-methallyl, tetra-cinnamyl, or tetra-geranyl titanate, or vanadyl alloxide, or tetra-methallyl vanadate. The aluminium compound may be aluminium triisobutyl, triethyl or triphenyl. Hydrocarbon solvents mentioned are benzene, xylene, cyclohexane, and heptane.
Patent GB-735970-A (GB)
Title: Improvements in or relating to horticultural irrigation apparatus
Inventor: CHASE JOCELYN LEATHLEY HEBER
IPC: B05B15/658
Filed: 1953-07-17
Abstract: 735,970. Liquid distributing apparatus. CHASE PROTECTED CULTIVATION, Ltd. April 23, 1954 [July 17, 1953], No. 19828/53. Class 69 (3). Horticultural irrigating apparatus consists of a flexible tube 1 with holes spaced along it into which studs 3 are inserted. Each stud has a small hole 9 allowing the seepage of water from the tube into a larger hole 8 and onto the ground.
Patent GB-1032027-A (GB)
Title: A control device for the lens focal length variation and the operation of a camera
Inventor: BABUSHKIN SVJATOSLAV GRIGORJEV
IPC: G03B17/14
Filed: 1964-05-13
Abstract: 1,032,027. Cine cameras; mounts for lenses. LENINGRDSKOJE OBJEDINENIJE OPTIKOMEKHANICHESKIKH PREDPRIJATY. May 13, 1964, No. 19857/64. Headings G2E and G2J. In a cinÚ camera the camera release button 8 and zoom control lever 1 are located one on the other to enable their operation by a single hand. As shown the zoom control lever 1 is coupled by a hollow bushing 2 and lever 3 to the zoom control element 5, and button 8 is on a lever 7 pivoted at 6 to lever 1 and controlling a rod 10 slidable within bushing 2 and coupled by peg 11 and lever 12, pivoted at 13, to the camera starting mechanism 14. A single frame release button 9 may be provided on the opposite end of lever 7 from button 8.
Patent GB-1217112-A (GB)
Title: Closure for a container
IPC: B65D83/14
Filed: 1969-04-18
Abstract: 1,217,112. Sheet-forming. STERLING SEAL CO. 18 April, 1969 [18 April, 1968], No. 19867/69. Heading B5A. [Also in Division B8] A flanged cap, for a container such as an aerosol can, is made by drawing a sheet of thermoformable material into a mould 21, the rim of which is furnished with radially reciprocable fingers 13. After the drawing, the fingers are retracted to allow portion 17 of the drawn material to sink into portion 15 after which the cap is removed from the mould and the excess material 18 removed.
Patent GB-205230-A (GB)
Title: Improvements in or connected with spanners
IPC: B25G1/06
Filed: 1922-07-20
Abstract: 205,230. Wadeson, H. July 20, 1922. Ratchet wrenches.-In a spanner of the kind having a head pivoted on the end of a handle and held in adjusted position by a pivoted, spring- pressed pawl engaging ratchet teeth on the back of the head, the pawl is wholly enclosed on its sides by the side members of the handle between which the pawl and head are pivoted, and the pawl is releasable by a projecting key. The toothed rear part 7 of the head 1 is pivoted at 3 in the slotted end of the handle 2, and the pawl 4 is pivoted near the pivot of the head on a pin 5 in the handle slot. The pawl 4 is wholly enclosed on its sides by the side members of the handle 2 and is held is engagement with the teeth 7 on the spanner head by a spring 8 secured at the bottom on the outside of the handle. A thumb operating-key 6 projects from the pawl above the handle for releasing it. The side members of the handle are connected by a bar 9. Specifications 11476/03 and 7294/04 are referred to.
Patent GB-515919-A (GB)
Title: An improved board for use in playing a game of darts
IPC: A63F9/02
Filed: 1938-07-05
Abstract: 515,919. Dart boards. SALTER, A. W. W. July 5, 1938, No. 19922. [Class 132 (iii)] A dart board, for use in playing a game simulating football, has the playing surface divided into a plurality of sections with indicating means adjustable relatively to the board to predetermine the. sections of the board to be aimed at. The playing surface is of the type shown in Fig. 2 and the indicating means are pins as shown in Fig. 6 carrying distinctively coloured discs 7g, 7r and which are inserted in holes 8 in the board. A kick-off area 4 is formed in the centre of the board and corner-flags may be also attached to the board. In a modification the sides of the playing area may converge towards the goals. Flags may be inserted at the corners of the field of play for appearance sake.
Patent GB-242922-A (GB)
Title: Ironing-horse for sleeves
IPC: D06F81/12
Filed: 1925-08-07
Abstract: 242,922. Rehfeldt, A. Aug. 7, 1925. Ironing-boards.-A sleeve board comprises an angular pad a having two arms a<1> a<2> and is pivoted in supports c carried by a base plate t so that either arm can be swung into ironing positior and be locked therein by bolts e.
Patent GB-388289-A (GB)
Title: Improvements in and relating to hand bags and frames therefor
IPC: A45C13/04
Filed: 1932-07-14
Abstract: 388,289. Handbags. KARRON, D., 1958, Pitkins Avenue, Brooklyn, New York, U.S.A. July 14, 1932, No. 19957. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 10, 1932.] [Class 133.] A handbag is provided with flat metal &c. supplementary frames 6 of #-shape, and the bag material 15 extends over the inner flat sides, outer edges, and outer flat sides thereof. The main frames 5 which are hinged together are placed in registration with the frames 6 so as to overlie the bag material on the inner flat sides of the supplementary frames, and the two frames with the bag material between them are secured together by rivets &c. 16. The frames 6 carry lugs 6a to clamp the bag material ; and the frames 5 are provided with flanges 13 on their inner edges. Handles 10 with catches 11 are provided on the frames 5.
Patent GB-849954-A (GB)
Title: Liquid level control apparatus
IPC: F16K31/18
Filed: 1958-06-23
Abstract: 849,954. Regulating liquid levels. DRESSER INDUSTRIES Inc. June 23, 1958 [June 28, 1957], No. 19996/58. Class 123(1) [Also in Group XXIX] The level of water in a container, for example the casing of a hydromatic brake, is kept constant at any desired point by supplying water to the lower portion of the container through a pipe 16 from a tank 10 in which the same level is maintained by the operation of a float 20 to the lower end of which is secured a valve 24 closing an outlet port 18. Water is supplied to the tank 10 through a pipe 15. To adjust the point at which the valve 18 opens to release water and hence to control the level of the water in the tank and container the buoyancy of the float can be varied by applying an adjustable downward pressure to a stem 26 attached thereto through an arm 34 which is pivotally connected to a rod 29. The rod 29 is urged downwardly by a spring 38 bearing on a diaphragm 35 to the underside of which air at an adjustable pressure may be admitted through a pipe 40a to offset part of the spring pressure. In modifications the load on the float is applied by means of a beam carrying a sliding weight or by springs applying pressure to each side of a disc adjustably mounted on the float stem.
Patent GB-1317863-A (GB)
Title: Container for surgical instruments and appliances
IPC: A61B19/02
Filed: 1971-04-19
Abstract: 1317863 Surgical implement container MEDIPAK CORP Ltd 19 April 1971 [21 Jan 1970 14 July 1970] 20048/71 Heading A5G [Also in Division B8] A re-sterilizable surgical implement storage container comprises a tray 15 into which are fitted one or more elements 11 and 12 for holding the implements, and a fitting lid 21 which is transparent. The lid and elements are manufactured from a plastics material having a low friction co-efficient, which is capable of retaining its dimensional stability at autoclave temperatures and is substantially non-immune reacting. Suitable materials are: nylon; polycarbonate, polysulphone, annd tetrafluoroethylene-hexafluoropropylene copolymers. The lid and bottom tray may contain small holes to allow sterilant (e.g. steam) to enter the container.
Patent GB-140962-A (GB)
Title: Improvements in centrifugal apparatus with planetary movement
IPC: B04B5/02
Filed: 1919-08-15
Abstract: 140,962. Mauss, W. Aug. 15, 1919. Density separators.-In a machine of the planetary drum type, the drums 7 are supported on flanges 8 on the arcuate seatings 4 of the drum casing 2. The drums 7 are intermittingly retracted from the seatings 4, and are then rotated bv straps 15 connected at each end by links 16 pivoted to the strap 19 of an eccentric sheave 20 operated by gears 22 from a pinion 23 on the central shaft 9. The length of the straps 15 can be adjusted by screws 21. The pinion 23 is prevented from turning by an arm 24 which engages a pin 25 projecting from a collar 26, rotatably mounted on the shaft 27. Attached to the collar 26 are spring arms 28 coupled at their outer ends to fixtures.
Patent GB-959560-A (GB)
Title: An apparatus comprising a roller, for use in paper-making machinery
IPC: D21F1/32
Filed: 1960-06-08
Abstract: 959,560. Hollow rollers. J. M. VOITH G.m.b.H. June 8, 1960 [June 10, 1959], No. 20134/60. Heading F2U. [Also in Division D2] An apparatus, e.g. for drying a felt in a papermaking machine, comprises a roller, a bearing at each end of the roller, a housing which surrounds the bearing and has a spigot, passages running along the roller and opening on to its surface between the bearings, a non-rotary duct mounted on the spigot, a seal between the non- rotary duct and some of the passages in the roller, the selection of the passages remaining in communication with the non-rotary duet depending on the angular position of the roller in relation to the non-rotary duct, and resilient means arranged around one of the bearings to ensure that the seal is fluid-tight. As shown, the inlet duct 3 is mounted on a spigot 12 of the housing 17 containing the bearings 10 and 10a on which one end of roller 1 is mounted. It is pressed against the roll by springs 13 in bores 19 acting on rods 14. Plates 21 and 22 are fast to the duct, but sealing ring 11 rotates with the roller. All have openings 21a, 22a and 11a, but openings 22a do not extend the whole way round the axis. Hot air admitted to duct 3 passes through these openings into passages P running along the roller, and thence through openings 0 in its surface and so through a felt (shown cross-hatched) that is to be dried. Where (as shown at the top of the Figure) the felt is not in contact with the roller, the hot air is cut off from these passages by the plate 22.
Patent GB-1043476-A (GB)
Title: Air diffuser
IPC: F24F13/072
Filed: 1965-05-12
Abstract: 1,043,476. Ventilators. ALLIED THERMAL CORPORATION. May 12, 1965 [June 5, 1964], No. 20138/65. Heading F4V. The deflecting element of a slot diffuser comprises a cylinder 50 having tabs extending axially from its circumference and engaging holes such as 48 in vertical walls to allow rotation with respect to such holes. The described diffuser includes two deflector elements each covering approximately half the slot length and being independently adjustable. The tabs of adjacent deflector ends are accommodated in holes in a U-shaped member 35 which has a spring action to retain the deflectors in a desired position. Air flow to the diffuser is controlled by a manually operated damper 43. Preferred dimensions are disclosed.
Patent GB-1061936-A (GB)
Title: Epicyclic gearing
IPC: F16H1/36
Filed: 1964-05-14
Abstract: 1,061,936. Toothed gearing. R. G. PREUX. May 14, 1964 [May 25, 1963], No. 20160/64. Heading F2Q. Epicyclic gearing comprises a sun gear on a driving shaft E 1 , an internally toothed annulus C3 mounted in a fixed casing, C1, and a train of three pairs of stepped planet gears R<SP>1</SP> P<SP>3</SP>, R 2  P 4 , R 3  P 5 , mounted in a three-part carrier A 2 , A 3 , A 4  secured by screws V 1  to an output shaft A 1 . The number of planet gears may be increased two, three or four times in order to transmit larger torques.
Patent GB-776166-A (GB)
Title: Improvements relating to the preservation of tea
Inventor: MAURICE PHILIP
IPC: A23F3/14
Filed: 1954-07-09
Abstract: Tea is preserved by incorporation of benzoic acid, preferably in the proportion 0.1-2 per cent by weight of tea.  A benzoate such as sodium benzoate may alternatively be used.
Patent GB-478707-A (GB)
Title: Improvements in or relating to the manufacture of bricks, blocks and other shaped articles from materials typifiable by dolomite
IPC: C04B35/06
Filed: 1936-07-21
Abstract: 478,707. Moulding dolomite; furnaces. DUFFIELD, F. L. July 21, 1936, No. 20187 [Classes 22 and 87 (ii)] [Also in Group XII] In the method of manufacturing bricks &c. from materials typefiable by dolomite described in Specification 278,120, [Class 22], the material is sintered in an oscillating furnace having a spout-like outlet fitted with a door to enable it to be closed to the atmosphere during sintering so that during discharge the outlet is at substantially the same temperature as the furnace. The furnace comprises a body a lined with refractory b and having a tapering spout m, also lined and closed by a hinged door o. Powdered fuel is supplied from a hopper c to a burner e and a movable flue g at the opposite end of the furnace is water cooled by rings h. The furnace is oscillated by rings k running on rails l. The sintered material is run directly into the moulds which may be continuously moved under the discharge spout.
Patent GB-1508440-A (GB)
Title: Method for the production of carbon composite articles and articles made thereby
IPC: C04B35/83
Filed: 1974-05-08
Abstract: 1508440 Carbon composite articles DUNLOP Ltd 28 April 1975 [8 May 1974 (2)] 20218/74 and 20200/74 Heading C1A A carbon-fibre reinforced, all carbon annular composite article is produced by winding a flattened, multi-filament tow of continuous filament carbonizable material onto a mandrel to form a tube of filamentary material, removing the tube from the mandrel, carbonizing in an inert atmosphere and subjecting the resultant substrate to the carbon vapour deposition process (carbonaceous gas and heated substrate) to deposit a carbon matrix on the substrate and then cutting the tube in planes perpendicular to its longitudinal axis to obtain a plurality of annular articles. The mandrel may be metal, such as steel, which may have a polished surface, or a carbonaceous material, such as graphite, or a carbonizable material such as textile, paper or cardboard. The substrate may be made from a continuous filament carbon fibre tow which is preferably surface treated. The tow is wound onto the mandrel at a predetermined winding angle, such as low or nil angle to produce piston rings, and are preferably contacted with the mandrel surface under a flow of 12¢% w/v of resin in acetone. The annular articles may be cut in one or more planes parallel to its axis to give a part annular object or a ring with a lug. A high temperature seal may be made wholly of carbonaceous material with outer and inner circumferential rubbing surfaces which are mutually offset along the axis of the seal. The annular body of the invention has improved resilience and mechanical strength.