baber/WOPTO huggingface dataset:
Patent GB-1219781-A (GB)
Title: Improvements in or relating to a metal/air battery with replaceable anode
IPC: H01M10/04
Filed: 1968-01-26
Abstract: 1,219,781. Metal-air cells. LEESONIA CORP. 26 Jan., 1968 [8 Feb., 1967], No. 4218/68. Heading H1B. The invention is concerned with replaceable consumable metal anodes for metal-air or metal-oxygen cells which include a top portion having a terminal which automatically engages a terminal on the cathode when the electrodes are mated. According to one aspect, the cell comprises an envelope cathode consisting of a non-conductive frame 1.1, a hydrophobic polymer membrane 1.6, and a conductive, catalytic coating 1.8, on the inner surface of the membrane, the anode inside the cathode and an electrolyte in the space between the electrodes, the cathode frame having a terminal adapted to removably receive the anode terminal when the anode is placed in the cathode. According to another aspect the anode comprises a metal body and a non-conductive top of greater width than the body, the top projection including a socket or plug suitably positioned to engage a plug or socket on the cathode when the two electrodes are mated. The anode may comprise a porous zinc body wrapped in separator paper impregnated with electrolyte and a top of plastics material encapsulating the body. In the cathode the hydrophobic polymer membrane 1.6, may comprise PTFE of porosity 15-85%, pore size 0À01-100 Ám. and thickness 0À5-10 mils, supported by screen 1.7 and the catalytic coating 1.8 may be of Pt and PTFE binder. The electrolyte may be aq. KOH. Each electrode may have a terminal on both sides, 1.4a and 2.3 to provide a spare wiring system. A plurality of cells 10 separated by spacers 25 are packed up to form a battery. The spacers must allow air-access to the cathodes. The cells may be compressed between a fixed end-plate 23 and a screw-mounted end-plate 24. The bottom of the battery case is lined with foam material 22. The cells are joined in series or parallel to terminals on top of the case.
Patent GB-747981-A (GB)
Title: An improved method and apparatus for shrinking knitted fabric
IPC: D06C21/00
Filed: 1954-02-15
Abstract: 747,981. Shrinking fabrics. ANDERSON, S. Feb. 15, 1954 [April 22, 1953], No. 4323/64. Class 42 (1). A method of shrinking knitted fabric is characterized in that the fabric is introduced between two elastic webs of helical springs which are driven in the same direction and run parallel with each other, said springs being contracted during their motion, whereby the fabric is compressed in a longitudinal direction at the same time as it is being subjected to steam and heat. The fabric may also be shrunk in the transverse direction by causing the helical springs to approach each other during their motion. In the apparatus shown two webs are formed by continuous helical springs 19, 20 passed round rollers 1 to 7. The rollers are driven so that their peripheral speeds gradually decrease from the top downwards so that the springs are stretched on the outside travel and allowed to contract on the inside travel. Fabric passed between the inner webs formed by the springs is thus caused to contract. The rollers 1 and 2, and 6 and 7 are formed with grooves 18 to guide the springs, the grooves on rollers 6 and 7 being closer together than those on rollers 1 and 2 so that the springs converge as they travel from top to bottom thus also causing the fabric to shrink transversely. The apparatus is enclosed in a casing provided with steam generating means.
Patent GB-534552-A (GB)
Title: Improvements in or relating to means for conveying or threading strip material over rollers
IPC: G03C1/74
Filed: 1940-03-08
Abstract: 534,552. Feeding webs. KODAK, Ltd. March 8, 1940, No. 4346. Convention date, May 9, 1939. [Class 100 (i)] Means for threading strip material over the rollers of a coating, dyeing, drying or other machine comprises a leader bar to which the end of the strip is attached having at each end a fixed jaw member and a pivoted arm carrying a pair of jaws either of which can co-operate with the fixed jaw to clamp the leader bar to a conveyer belt for guiding the strip over the rollers. The strip S, Fig. 1, is connected to the leader bar 4 by cables 3 passing over guide pulleys within the bar and connected to a spring by which the pull on the cables is equalized. The bar is connected at each end to a conveyer belt 6 by clamping jaws shown in Fig. 5. An extension 12 of the bar 4 having smooth belt engaging surfaces 15 on opposite sides forms a fixed jaw against which the belt 6 is gripped by one or other of two jaws 18 carried by an arm 16 pivoted to the bar and connected to a spring rod 19 which holds the acting jaw in operative position. The jaw 18 carries a spring pressed belt gripping member 31, Fig. 7, mounted on a spindle 30 inclined to the face of the belt 6 so that slip can take place if relative movement of the belts and strip occurs. The two jaws 18 permit the leader bar to be transferred from one pair of belts to an adjacent parallel pair. For this purpose, a sharp edged cam 45,Figs. 10 and 11 is positioned in the part of each end of the leader bar so as to engage between the acting movable jaw 18 and the adjacent face of the fixed jaw 12 so that the arm 16 is moved about its pivot until the spring rod 19 moves past the dead centre and turns the arm completely 'so that the previously inactive gripper 18 is moved into clamping position on the adjacent belt. The leader bar, during the change over while it is not clamped to either conveyer belt, is supported and conveyed by a box like conveyer 46 which is projected under the bar and then moved in the direction of the belts. This conveyer is slidably guided on a bar 47 1  projecting from a carriage 47 movable on a guide 49. A pin 52 on the conveyer is connected to an endless chain 50 which is caused to make one revolution by a known form of drive mechanism 54 which is set into operation pneumatically upon the opening of a valve 57. When the leader bar reaches the change over pbsition, it operates arm 61 to open the valve 57. During the resultant revolution of the chain 50 the pin 52 projects the conveyer beneath the fixed jaw 12 and then carries it upwardly at the same speed as the belts during which time the change over is effected by the cam 45.
Patent GB-840745-A (GB)
Title: Improvements in or relating to pliable printing master sheets
IPC: B41F27/12
Filed: 1957-02-08
Abstract: 840,745. Printing surfaces. RITZERFELD, W., and RITZERFELD, G. Feb. 8, 1957 [Feb. 24, 1956], No. 4373/57. Class 100(2) A printing master sheet 1 of pliable material comprises step-like raised marginal portions 3 at both sides of the master sheet, at least one at each side, the portions 3 being shaped and adapted to engage behind complementary step-like edges 11, 12 of an attaching device of a printing drum 8 when the sheet is attached thereto, whereby to secure an edge of the master sheet 1 to the drum 8 in the circumferential direction of the drum. The portions 3 may be made by folding over the ends of the master sheet, by fixing a U-shaped strip over the ends of the sheet 1 or by fixing two separate strips to both sides of the ends of the sheet 1. The attaching device comprises a steplike ledge 12 formed on the body of the drum and a clamp 10, pivoted about a shaft 13, having formed thereon a step-like ledge 11. The clamp is biased to closed position by a spring 14. The other end of the master sheet is secured to a second similar clamping device but which is slidably mounted so as to tension the sheet 1, a spring 15 being provided for this purpose. The attaching device may also be provided with pins or projections to engage corresponding holes or recesses in the ends of the sheet 1. Where it is desired to fix a masking sheet over the master sheet, a double clamp is provided. In this case the first clamp is formed with a second step-like ledge on its upper surface which co-operates with a further step-like ledge formed on the under side of a second clamp pivoted and mounted on the first clamp. Specification 799,988 is referred to.
Patent GB-116305-A (GB)
Title: Improvements in Catapults for Throwing Projectiles and other Objects.
Inventor: WYE GARRY PEATE VAN
IPC: F41B3/03
Filed: 1917-03-26
Abstract: 116,305. Wye, G. P. van. March 26, 1917. Ordnance, mechanical. - Relates to catapults for throwing projectiles or other objects, and consists in providing a frame manually supported with one end resting on the ground and a throwing arm pivotally connected to the frame and provided with a semi-circular guide over which passes a wire cord connected to a spring or springs adjustably connected to the frame, the throwing arm being held in its retracted position with the spring or springs stressed and substantially parallel with the frame by a releasable trigger device. In the form shown in Fig. 1, a throwing-arm 5 is pivoted at 13 to a frame 6 which is held at the inclination shown, with an adjustable spade 57 engaging the ground, by two operators each gripping two handles 52, 53 on either side of the frame. The arm 5 carries at one end a projectile-holder 23 and at the other end a semi-circular structure 10 around which passes a wire rope 18, one end of which is fixed to a pin 16 on the structure, the other end being connected through a plate x to a set of tension springs 35 anchored to an adjustable plate 38. The arm 5 is held in the position shown in full lines, with the springs stressed, by a trigger 43 which is tripped to release the arm by means of a spring-controlled pivoted plate 47 operated by a cord 48. The arm is arrested by buffers 56 engaging with projecting portions of the pin 16.
Patent GB-473946-A (GB)
Title: Improvements in the production of adhesives for leather
Filed: 1937-02-15
Abstract: An adhesive composition for leather comprises a solution of celluloid and a resin in acetone with addition of a tannin extract obtained by subjecting oak bark and galls to extraction with acetone and methylated spirit.  Castor oil, eucalyptus oil, or oil of mirbane may be added to the tannin extract during or after the extraction.  In an example, celluloid and tree resin are mixed and dissolved in acetone, and a separate mixture of cut oak bark, ground galls, castor oil, eucalyptus oil, oil of mirbane, acetone and methylated spirit is prepared.  After standing for two weeks, the tannin solution is filtered and mixed with the celluloid solution.
Patent GB-120547-A (GB)
Title: Improvements in or relating to Carburettors for Explosion Engines.
Inventor: FEROLDI ENRICO
IPC: F02M1/00
Filed: 1918-03-13
Abstract: 120,547. Feroldi, E. Oct. 9, 1917, [Convention date]. Spray carburettors. -The float valve of a carburettor is prevented from opening too far and admitting an excess of fuel in the event of the float failing to act. This is effected either by forming the cover of the chamber as a stop 11 against which the valve 7 strikes after having risen to admit the normal quantity of fuel, or by forming on the valve a head 8 which is prevented from rising too far by striking the bottom of the float which, having been damaged and partly filled with fuel, rests on the sleeve 9. The Specification as open to inspection under Sect. 91 (3) (a) states also that a number of float chambers may be connected above the constant level so that, in the event of the fuel rising too high in any chamber, the excess will overflow to the next. This subject-matter does not appear in the Specification as accepted.
Patent GB-539487-A (GB)
Title: Improvements in the separation of acetone and cyclic ethers
IPC: C07D307/08
Filed: 1940-03-11
Abstract: 539,487. Acetone ; cyclic ethers. BRITISH CELANESE, Ltd. March 11, 1940, No. 4505. Convention date, March 11, 1939. [Class 2 (iii)] An azeotropic mixture of acetone and a cyclic ether of higher boiling-point is separated by treating its vapour with a liquid solvent of the cyclic ether which has a higher boiling point than the ether whereby the ether is dissolved and the acetone remains in the vapour form. The initial mixture may be obtained from a ternary azeotropic mixture of methanol, acetone and tetramethylene oxide from the oxidation of hydrocarbons by washing the vapour of the mixture with water. In an example the vapour of the mixture is introduced into the base of a fractionating column near the top of which ethylene glycol is admitted. The tetramethylene oxide is recovered by distillation of the glycol solution. Other solvents mentioned are diethylene glycol, 2-3-butylene glycol, glycerol and partial ethers such as monomethyl and monoethyl ethers of ethylene glycol.
Patent GB-340839-A (GB)
Title: Improvements relating to fishing line reels or winches
IPC: A01K89/015
Filed: 1930-02-11
Abstract: 340,839. Fishing reels. HAINES, D. J. P., of Westley Richards & Co., Grange Road, Bournbrook, Birmingham. Feb. 11, 1930, No. 4524. [Class 48.] The rollers 4 of a brake for a fishing reel line drum are both maintained out of contact with the drum when the lever 6 is oscillated, by a headed stud 9 which is adapted to engage a slot 5<a>. The stud 9 may be secured to the frame and engage a slot 5<a> in plate 5 carrying the rollers as shown, or the stud may be carried on the plate 5 and engage a slot in the frame.
Patent GB-1169231-A (GB)
Title: Wire Utilizing Machines
Inventor: ALEXANDER ANTHONY PETER
IPC: B21C19/00
Filed: 1966-01-21
Abstract: 1,169,231. Drawing wire. GEORGE H. ALEXANDER MACHINERY Ltd. 13 Jan., 1967 [21 Jan., 1966; 2 Feb., 1966], Nos. 2820/66 and 4555/66. Heading B3P. A wire drawing attachment for a heading or nut forming machine comprises a bed, a drawing die holder reciprocably mounted on the bed, uni-directional gripping means on the bed for acting on a wire extending through the die and means for reciprocatingt the die-holder comprising a double acting hydraulic cylinder unit, a lever pivotally mounted on the bed and pivotally coupled at one end to the cylinder unit, the other end of the lever abutting the die-holder to move it along the bed away from the gripping means, and means actuable by the machine with which the attachment is to be used for supplying pressurized liquid to the cylinder unit in synchronism with the machine. The die holder 21 is a hollow block which is secured to the ends of two parallel bars 22 which slide in bushes (18 and 19), Fig. 1 (not shown) which are carried respectively by members 17 and 20 of a box-shaped bed 12, 13, 14, 15, 16. The interior of the die holder forms a lubricant box which is closed by a lid 26. The die 25 is mounted in the die-holder which also has hardened wear pads 48. The bars 22 are connected at their ends remote from the die holder by a block which carries a straightening bush 23. The uni-directional wire gripper has jaws 31 which run on roller bearings in convergent guideways. The jaws are biased to the closed position by a spring 33. A trunnion-mounted hydraulic cylinder 51 has its piston-rod connected to one end of a lever 45 which is pivotally mounted near the middle of its length and has hardened wear pads 47 which abut the die-holder. Adjustable stops 72 limit the oscillation of the lever and are positioned by a hand operated screw 74. The cylinder 51 receives pressure fluid from a master cylinder, the piston of which is reciprocated by a variable throw eccentric mounted on the crank-shaft of the machine to which the attachment is connected. In a modification the cylinder is supplied from a pump and the flow of fluid is controlled by a valve actuated by a cam or eccentric on the crank-shaft of the machine. In a further modification the master cylinder is driven from the crank-shaft through a 1: 2 reduction unit. An inching feed arrangement to enable wire to be initially fed into the jaws 31 includes a fixed uni-directional gripper 34 and a reciprocable uni-directional gripper 35, each generally similar in construction to the gripper 30. In both the grippers 34 and 35 however the guides for the jaws are pivotally mounted and are spring-biased to a position in which the grippers are inoperative. A screw engages each guide and is employed to move the guide against the spring to bring the jaws to an operative position. Cams 41 manually operated by levers 42 hold the jaws apart while the wire is inserted.
Patent GB-556488-A (GB)
Title: Improvements in maximum demand tariff meters
IPC: G01R11/60
Filed: 1942-04-09
Abstract: 556,488. Electricity meters. LANDIS & GYR SOC. ANON. April 9, 1942, No. 4680. Convention date, May 5, 1941. [Class 37] [Also in Group XIX] A maximum demand meter is provided with a counting mechanism for registering the number of times an agreed maximum is exceeded, the said counting mechanism being actuated by an auxiliary force independent of the meter. In accordance with the invention a manually set stop device, movable with the meter mechanism and returned to the starting position at the end of the measuring period, co-operates with the armature of a relay, which is energized at the end of each measuring period to free the armature for effective action, to advance the counting mechanism only when the set maximum value is exceeded. As shown applied to an electricity meter, the meter 1 is connected through gearing 2 ... 6 to one sun wheel 7 of a differential gear 8, the other sun wheel 9 of which can be adjusted by a manual setting device 12 and gearing 10, 11. The shaft of the planet wheel 18 is connected by gearing 15, 16 and 17 to a stop or abutment disc 13. The shaft 19 of the gear wheel 5 carries a member 21 for actuating a maximum pointer 22 and a restoring spring 20. The shaft of the gear wheel 4 is mounted on the armature 23 of an electromagnet or relay 29. The armature 23 is controlled by a spring 24 and carries a pawl 28 to actuate a counter 27. In operation at the end of each measuring period, say quarter of an hour, the relay is de-energized and the armature will be released and if the maximum has not been exceeded, will rock until the resilient member 30 on the end of the armature meets the stop disc 13. If, however, the maximum has been reached the armature is freed from the surface 32 of the disc 13 to execute a complete movement to actuate the counter 27. The setting device 12 is utilized to indicate the maximum value for which the disc 13 is adjusted.
Patent GB-139174-A (GB)
Title: Improvements relating to means for disintegrating curled metal turnings
IPC: B22C3/00
Filed: 1920-02-16
Abstract: 139,174. Rheiaische Metallwaarenund Maschinenfabrik. Aug. 21, 1918, [Convention date]. Mills and apparatus.-The disintegration of curled metal turnings is performed by feeding the material into a hopper or casing c containing two disk members a revolving in opposite directions, the disks being provided with teeth or other projections b on their opposing faces. The shafts carrying the disks may be in alinement or inclined to each other, and means for adjusting the distance between the disks may be employed,
Patent GB-728475-A (GB)
Title: Improvements in the production of hydrogen by conversion of carbon monoxide
IPC: C01B3/16
Filed: 1953-02-19
Abstract: <PICT:0728475/III/1> Hydrogen is produced by reacting carbon monoxide with a hydrogen-containing reactant in two stages, viz. (a) carbon monoxide and ammonia are passed over a catalyst to form hydrogen, hydrocyanic acid, and carbon dioxide; (b) residual carbon monoxide is reacted with steam.  The invention is described with reference to the removal of carbon monoxide from gases used in the synthesis of ammonia from nitrogen and hydrogen.  A gas mixture containing carbon monoxide, carbon dioxide, hydrogen, and nitrogen from gas producer 3 is treated with steam in converter 5 where some of the carbon monoxide reacts to form hydrogen and and carbon dioxide; the carbon monoxide remaining is removed by treatment with an ammoniacal copper salt solution in pressure washer 8, and the residual gas is washed with water under pressure at 12 to remove carbon dioxide, and then passed to ammonia synthesis reactor 16.  The ammoniacal copper salt solution is heated at 21 to liberate gas containing carbon monoxide and carbon dioxide which passes through compressor 23 and is washed with water at 24 to remove carbon dioxide; the carbon monoxide is mixed with ammonia from line 28 and passed over catalyst in converter 29 at a temperature above 580 DEG  C.; the reaction products are washed with water under pressure at 31 to remove hydrocyanic acid and some carbon dioxide, and the remaining gases are passed to the converter 5; alternatively the hydrocyanic acid may be removed by passing the gases over alkali or alkaline earth hydroxide.  The catalyst used in converter 29 contains aluminium oxide, zinc oxide, nickel oxide, and cobalt oxide.  If the nickel and cobalt oxides are replaced by compounds of vanadium, chromium, or uranium, and the reaction is carried out at 520-620 DEG  C., residual ammonia is not split up into nitrogen and hydrogen, and may be separated by washing with sulphuric acid, by adsorption on a selective adsorbent, or by the process of Specification 706,659. The invention is also applicable to the treatment of carbon monoxide-hydrogen mixtures used for the synthesis of hydrocarbons.
Patent GB-914863-A (GB)
Title: Production of barium oxide compositions
IPC: C01F11/02
Filed: 1961-02-09
Abstract: Barium oxide compositions are produced by heating particulate barium oxide (preferably 5 to 65 mesh in size U.S. Standard Sieve) to at least 700 DEG C. and preferably below 1300 DEG C. in the presence of water.  An inert gas, such as nitrogen, argon, or neon, containing water vapour may be used as a carrier gas.  The process is preferably continued for at least 5 minutes, and preferably for 30 minutes to 2 hours, until 0,2 to 5 weight per cent of water based on the barium oxide is adsorbed.  The barium oxide may be agitated by effecting the process in a rotary kiln, or in a fluidized or extended bed.  If a fluidized or extended bed is employed the fluidizing gas may comprise an inert gas containing water vapour.  The resulting barium oxide composition may be used to produce barium detergents (see Group IV(b)).  Specifications 759,765, 759,766, 759,821, 836,797 and 845,122 are referred to.ALSO:Barium oxide is treated with methanol to produce a barium methylate solution which may be treated with a sulphonic acid for example benzene sulphonic acid to produce a barium detergent.  In an example 15 grams of barium oxide is treated with 100 millilitres of methanol at 30 DEG  to 40 DEG C., and the solution is filtered at 30 DEG  to 40 DEG C.  The preparation of the barium oxide is described in Group III.  Specifications 759,765, 759,766, 759,821, 836,797 and 845,122 are referred to.
Patent GB-151895-A (GB)
Title: Improvements in cylinder-flat-forme letter-press printing machines
IPC: B41F3/52
Filed: 1920-02-17
Abstract: 151,895. Winkler, C. Feb. 17, 1920. Addition to 115,358. Cylinder machines; inking-apparatus.-A cylinder printing-machine having means for electrically heating the forme or forme bed as described in the parent Specification, is provided with means for internally cooling the forme-inking rollers or the distributing-rollers with which they are in contact. As shown, the metal distributing-rollers l, k which supply ink to the forme-inking rollers b, b<1>, b<2>, are cooled by water passed through them from a supply-pipe o.