baber/WOPTO huggingface dataset:
Patent GB-558949-A (GB)
Title: Improvements in apparatus for feeding ammunition belts to machine guns
IPC: F41A9/51
Filed: 1942-04-25
Abstract: 558,949. Fluid-pressure servomotor-control systems. BOULTON PAUL AIRCRAFT, Ltd., and DOE, A. April 25, 1942, No. 5584. [Class 135] [Also in Group XXI] A cartridge belt 10 is fed to the feed box of a machine gun at a rate equal to that at which ammunition is consumed by the gun by means of a feed roller 11 which moves the belt towards an idler roller 12, the feed roller being driven in synchronism with the idler rollers by a hydraulic motor 18 to which the supply of liquid is controlled by the idler roller. As shown, the hydraulic motor 18 is of the reciprocating followup servo kind comprising a grooved distributor rod 20a, Fig. 1A, slidable with respect to a ported piston 42 from which extends a rod 21a. The rods 20a, 21a are linked to cranks 19, 22 on the idler and feed rollers respectively. To overcome the dead centre positions, a duplicate cylinder 18 is connected to cranks arranged at right-angles to the cranks 19, 22. Fig. 3 shows a rotary vane motor 118 for driving the feed roller 11, a liquid feed to the motor through a diametral passage 24 and pipe 30 being controlled by a sleeve valve 25 driven by the idler roller. The sleeve has apertures which pass into and out of register with the supply passage 24 in the member 23 fast with the vane to cause the vane to follow-up the movement of the sleeve.
Patent GB-217181-A (GB)
Title: Improvements in or relating to vices
IPC: B25B1/12
Filed: 1924-03-04
Abstract: 217,181. K÷th, B. June 4, 1923, [Convention date]. Vices.-Relates to a quick-adjustment screw vice in which the screw, nut and'sliding jaw are normally arranged to slide freely in the fixed jaw, but on the inward rotary movement of the operating spindle, the nut becomes locked in the fixed jaw so that a final adjustment can be made with the screw-and-nut mechanism. According to the invention in order to provide for its locking on the inward movement of the spindle, the nut rotates a portion of its guid'e and on the reverse movement of the spindle moves this portion back into register with the remaining portion. The movable jaw 2 slides on, and tne screw spindle 16 rotates in, a sleeve 5 attached to the fixed jaw 1. A nut 13 engages the screwed part of the spindle and is provided with projections 14 engaging guide grooves 7 formed by slots in a number of discs 6 held within the fixed jaw. Each disc 6 has a projecting piece 11 engaging with a recess 12 in the fixed jaw to limit the movement of the disc, all the discs being normally held with their slots in alignment by spring-pressed pins 8 to form the grooves 7. A bush 20 is secured to the reduced inner end of the spindle 16 and has mounted therein two outwardly-pressed pins 21 which can engage recesses in an extension 18 of the nut 13. On screwing in the spindle 16, the pins 21 turn the nut 13, and those discs 6 engaged by the projections 14 on the nut, until the pieces 11 on the discs engage the upper end of the recesses 12 so that further rotation of the nut and discs is prevented. The spindle can now be turned to clamp the work, the pins 21 being forced inwardly on the relative movement of the nut and spindle, the necessary amount of which movement is less than the thickness of one of the discs 6. In the reverse rotation of the spindle 16, the nut 13 and the displaced discs 6 are returned to their initial positions so that the nut is free to slide in the groove 7 and with it the spindle and sliding jaw. A pin is provided on the spindle to limit its longitudinal movement in one direction, the cap 25 limiting its movement in the opposite direction.
Patent GB-512887-A (GB)
Title: Electrical transformer tank with cooling radiator
IPC: H01F27/12
Filed: 1938-02-22
Abstract: 512,887. Transformer tanks with radiators. BINDER, H. G. Feb. 22, 1938, No. 5599. [Class 64 (iii)] An electrical transformer tank is combined with a radiator made in sections of pressed metal, connected together at the top to form a passage from one section to another and to the tank which is substantially flat on the top and has angular or rounded corners b, and connected together at the bottom to form a passage of similar cross section which is flat at the bottom. This cross-section of the transverse passages facilitates cleaning by plummet a, Fig. 1. In a modification, the pipe connections between the radiator and the tank may be of circular or other cross-section.
Patent GB-894988-A (GB)
Title: Identification of sound and like signals
Inventor: HEMBROOKE EMIL FRANK
IPC: H04K1/00
Filed: 1959-02-18
Abstract: 894,988. Sound records. MUZAK CORPORATION. Feb. 18, 1959, No. 5606/59. Class 40 (2). [Also in Group XXXIX] In order to identify the origin of a recorded musical or other audio programme, a narrow band within the programme range is modulated in accordance with a characteristic code, e.g. by Morse interruptions, the presence of the code being imperceptible to a listener in normal reproduction. The narrow band may, for example, be 10 cycles in width in the vicinity of 1000 cycles. As shown, the audio signals are switched by means of a coding key 12, which may be cam-controlled, either directly from terminal 11 to terminal 13 or through a filter 14 which rejects the narrow band. In order to detect the identifying code in reproduction, the narrow band is selected by a filter 22 and fed to a transducer 23 which may comprise a recording meter, an oscilloscope or a loud-speaker.
Patent GB-163805-A (GB)
Title: Improvements in and relating to keyless locks
IPC: E05B37/16
Filed: 1920-02-25
Abstract: 163,805. Leeuw, J. de. Feb. 25, 1920. Locks, permutation. - The elements 2 are mounted is concentric circles in stationary plates 3, 4, 5 and are adapted to be pressed inwards, their extended flat portions projecting into the broad parts of the slots 2a of the movable plate 1 so that the tongues 4<a> have their ends close to the elements. In each of these elements is a hole 5<a>, situated in some of them opposite the corresponding tongue 4<a>, and in others above it, when all the elements are in the initial position, so that the tongues cannot all enter the holes and allow the plate 1 to be rotated to operate the bolt. The elements 2 are inaccessible from the outside, and those that require to be pressed in to bring their holes opposite their corresponding tongues, are operated by a finger 6 attached to a sleeve 7 of a knob 8, which can be rotated and pressed inwards. The external finger 15, working on a dial on the casing, enables the correct elements to be found and operated, to bring all the holes 5a in position to receive the tongues 4<a>, allowing the plate 1 to be turned through a small angle by the handle when the stud 9 is engaged in the slot 10, whereby the projection 17 of the plate shoots the bolt 18. The plate 16 can be pulled inwards to restore the pressed-in elements to their initial position after the bolt has been operated, thus re-locking the bolt.
Patent GB-640326-A (GB)
Title: Improvements in or relating to a carry-type earth moving scraper
IPC: E02F3/64
Filed: 1948-02-26
Abstract: 640,326. Bowl-type earth scrapers. RUSTONBUCYRUS, Ltd. Feb. 26, 1948, No. 5769. Convention date, April 3, 1947. [Class 68 (i)] In a bowl-type earth scraper of the type described in Specification 562,181, the motion of the bowl from its carrying to its dumping position is directly controlled by movement of the front apron from a partial dumping to a full dumping position. A rope 49 is symmetrically disposed about the centre plane of the bowl 27, passing over a pulley 55 mounted on a tension device 56 secured to the bowl and thence over direction-changing pulleys 541 on the bowl, and pulleys 531 and 521 on the front and rear portions of the scraper framework, the end being finally deadended at 50<SP>1</SP>. As the apron 37 is raised by cables 45 from its partial open position to its fully open position, a sheave of pulleys 48 carried on the apron 37 first engages the lower reach 57 of the rope 49 causing a lengthening of that reach with a consequent turning force being applied to the bowl which slowly turns about pivot 33. Further raising of the apron results in a second sheave of each pulley 48 engaging the upper reaches of the rope with consequent lengthening of these reaches and a more rapid turning movement of the bowl.
Patent GB-1087451-A (GB)
Title: Apparatus for playing a game
Inventor: BARGE RONALD MANSFIELD
IPC: A63B67/14
Filed: 1964-02-11
Abstract: 1,087,451. Games. J. & E. HALL Ltd. Feb. 10, 1965 [Feb. 21, 1964; Feb. 11, 1965], Nos. 5773/64 and 7266/64. Heading A6D. [Also in Division F4] Apparatus for playing a miniature form of curling comprises an open-topped, shallow tank 1 fitted along its base with heat exchangers 8 in communication with a refrigeration system, for forming an ice layer in the tank, a run-off area adjacent to at least part of the perimeter of the tank for the reception and slowing down of stones passing off, the playing area, together with a set of miniature curling stones. The markings on the "rink" may be painted on the heat exchangers, or may comprise metal strips embedded in the ice. A sloping run-off 28 borders the scoring end of the "rink", and comprises a sloping plate of metal or synthetic resin covered by a sheet of resilient material such as rubber, and the apparatus preferably includes a refrigerated cabinet for storing the stones when not in play. Air-filled resilient tubes extending along the sides of the "rink" and connected to a pressure sensitive switch may be utilized to operate a signal to indicate stones passing out of play.
Patent GB-720768-A (GB)
Title: Improved method of controlling automatic balance-beam hinge leaf gates subjected to the impulse of downstream waters
IPC: E02B7/44
Filed: 1953-03-02
Abstract: 720,768. Sluice and like gates. NEYRPIC PORTUGUESA, Ltd. March 2, 1953 [March 3. 1952], No. 5779/53. Class 68(2). In apparatus for regulating the water level on the upstream side of a leaf gate 1, pivoted at 2 and linked to a beam 4 from the other arm of which a counterweight 5 is suspended, in order to neutralise the back pressure of the downstream water on the gate when the downstream water rises above the pivots 2, which tends to prevent the gate from opening, the counterweight is arranged to be immersed in the downstream water when the latter rises above the pivots. The hydrostatic effect of the rising water on the counterweight thus enables the gate to open as fully as is required.
Patent GB-1533952-A (GB)
Title: Anti-microbial bis-pyridinium compounds
IPC: A61P31/12
Filed: 1977-02-11
Abstract: The compounds of formulae I and II in which the symbols have the meaning given in Claim 1 are prepared by reaction of 2 mole parts of a compound <IMAGE>  or, respectively, <IMAGE>, with one mole part of a compound Z-Y-Z or, respectively, <IMAGE>, Z being an atom or radical which splits in the form of an anion which is then the anion A. The latter can be exchanged by metathesis against other anions A. The compounds thus prepared have antibacterial, fungicidal and viricidal properties and can be used, for example, in medicine, as disinfectants and as antimicrobial agents. <IMAGE>
Patent GB-1223812-A (GB)
Title: Improvements in or relating to gas heating appliances
IPC: F23N3/04
Filed: 1969-02-04
Abstract: 1,223,812. Flue dampers. HALLER MEURER-WERKE A.G. 4 Feb., 1969 [13 Feb., 1968], No. 5976/69. Heading F4W. In a gas fired heater having an auxiliary compartment 4, and a thermally operated flue damper, the flue damper is mounted within the casing of the auxiliary compartment. A cover 12 for an opening in the top of the auxiliary compartment has a frame 19 supporting the flue damper 10. The damper 10 is formed of two bimetallic members, with slits recurring perpendicularly to the fixed edge of each member, and there is an auxiliary outlet 6 for directed gases 6.
Patent GB-1451592-A (GB)
Title: Substituted tetrahydrofurans their preparation and use as insecticides
IPC: C07C47/14
Filed: 1975-02-12
Abstract: 1451592 Substituted tetrahydrofurans ROUSSEL UCLAF 12 Feb 1975 [13 Feb 1974] 6001/75 Heading C2C Compounds of the formula wherein R represents a straight or branched C 1-10  alkyl radical, R<SP>1</SP> represents a straight or branched C 1-5  alkyl radical, and X represents a chlorine or bromine atom, a hydroxyl radical, or an alkylcarbonyloxy radical having from 2 to 5 carbon atoms, may be prepared (a) where x is OH, by subjecting a compound of the formula to acidic conditions, (b) where X is Cl or Br, by chlorinating or brominating a corresponding compound of Formula (I) where X is OH, or (c) where X represents a C 2-5  alkylcarbonyloxy radical, by acylating a corresponding compound of Formula (I) where X represents OH. Mixtures of isomers may be separated. Starting materials of Formula (II) may be obtained, for example, by reacting an α- chloro substituted aldehyde with ethyl-γ-propargyl # ethoxy crotonate to produce an ethyl 3-oxo 8-hydroxy 9-chloro 6-alkynoate, hydrogenating said product to give the corresponding 6-alkenoate, and eliminating HCl from this product to give an ethyl-3-oxo 8,9-epoxy 6- alkenoate. The compounds of Formula (I) possess insecticidal properties and may be formulated and applied in a conventional manner.
Patent GB-1383863-A (GB)
Title: Production of thermally stable fibre-reinforced composite bodies
IPC: C04B35/83
Filed: 1973-02-07
Abstract: 1383863 Forming a carbon body SIGRI ELEKTROGRAPHIT GmbH 7 Feb 1973 [12 Feb 1972] 6118/73 Heading C1A A reinforced composite body is formed by providing a body of reinforcing fibres in a carbonizable resin matrix and curing and carbonizing the resin by heating in an inert atmosphere at a temperature of at least 800‹ C., the reinforcing fibres being formed from a non- cellulosic polymer which undergoes cross linking when treated with an oxidizing agent, said fibres having been so oxidized to convert them to a thermally stable condition and then having been heated in an inert atmosphere to a temperature of from 300‹ to 500‹ C. for from 5 to 10 mins. until the fibres achieve a state in which during carbonization of the cured resin matrix they shrink by an amount of from 6% to 10%. This shrinkage is approximately the same as that suffered by the matrix during carbonization. The fibres may be formed from a homo polymer or copolymer of acrylonitrile, e.g. acrylonitrile with up to 15 mole per cent of one or more of methacrylate, vinyl chloride, vinylidene chloride, and styrene. The fibres may be oxidized by heating in an air stream, or by reacting with a halogen or peroxy compound, the oxidation of the fibres being effected at from 180‹ to 300‹ C. If desired before being oxidized the fibres may be contacted with a Lewis acid, e.g. the tetrachloride of Ti or Sn. The Lewis acid may be complexed with its solvent. A nitrogen atmosphere may be used to heat the reinforcing fibres. The resin matrix may comprise a phenolic resin, furan, resin, a melamine resin or an epoxy resin. The heat-treated fibres may be covered with resin, laid in a mould, and compressed and the fibres may comprise 30-70% by volume of the body formed with the resin prior to carbonization. The resin matrix may be cured at 120‹ to 180‹ C. under a pressure of 2-10 kp./cm.<SP>2</SP> The carbonized body may be graphitized by heating to 2500‹ to 2800‹ C. in an inert atmosphere.
Patent GB-420429-A (GB)
Title: A combined silt recovery plant and continuous filter for use in coal washeries and the like
Filed: 1933-03-01
Abstract: 420,429. Filters. NORTON, G., Devon Lodge, Sandwell Road, Handsworth, Birming- ham. March 1, 1933, No. 6199. [Class 46] A device for removing silt from coal-washing water comprises a trough-shaped tank C fitted with a grid E on which solid matter settles to form a filter-bed through which water filters into a compartment F. The water is withdrawn from the compartment F by a pump or ejector or through a fall pipe M. Surplus solid matter is removed from the bed and delivered to a shoot Y by a scraper conveyer D, slides G being provided to space the scrapers from the grid. The bed itself is removed at intervals by one or more sets of deep scrapers R, Fig. 4, a multi-way plug cock N on the outlet pipe from the compartment F being simultaneously turned so that fluid under pressure is admitted from a branch pipe to assist in the clearing of the grid. The valve may be operated automatically by levers S and links T moved by the scrapers R. Air collecting in the compartment F during filtration may be withdrawn therefrom by a small ejector. The wash water is supplied to the tank by a trough K and there is an overflow trough L. The Provisional Specification describes the installation of a tank C as described above in the upper portion of a conical settling tank,
Patent GB-779854-A (GB)
Title: Improvements in polymers of vinyl chloride
IPC: C08F18/04
Filed: 1956-02-29
Abstract: Terpolymers of vinyl chloride, a vinyl ester of a saturated aliphatic monocarboxylic acid containing 8 to 18 carbon atoms, and a dialkyl maleate containing 7 to 18 carbon atoms in each alkyl group are made by polymerizing, preferably in aqueous suspension, a mixture of the monomers containing at least 50 per cent vinyl chloride.  The preferred ester is vinyl stearate.  The alkyl groups may be obtained from pure or commercial lauryl alcohol or commercial tridecyl alcohol.  The suspension polymerization may be effected in the presence of a dispersing agent such as gelatin, polyvinyl alcohol, or cellulose ethers, with or without a small amount of an emulsifier such as sodium lauryl sulphate or sodium laurate, catalysts such as benzoyl peroxide, lauroyl peroxide, azo-bis-isobutyronitrile, and buffers such as disodium hydrogen phosphate, sodium tetraphosphate, or a sodium carbonate-bicarbonate mixture.  The polymers may be mixed with pigments, fillers and stabilizers and used to insulate metallic conductors, e.g. wire, e.g. by extrusion or by forming the copolymer into a tape.
Patent GB-218355-A (GB)
Title: Improvements in method of sealing the liners of containers for food products and thelike
IPC: B65B7/08
Filed: 1923-03-05
Abstract: 218,355. Imray, O. Y., (Kellogg Co.). March 5, 1923. Paper and like bags folding down mouths of after filling.-Relates to the closing and sealing of waxed liners of cartons containing food &c. According to the invention, the liner or bag is closed by pressing the opposed sides into intimate engagement and simultaneously applying heat. Bellows folds may be previously formed in the liner &c. and the closed end may be doubled to crimped. As shown, the carton 2, Fig. 1, containing a liner 1 is placed upon a support or carrier, one side being engaged by an arm 9 to position it, the flaps 8 held open by wires 10, and the liner extending above the material. Bellows folds 3 may be formed in the liner in any desired manner, and the sides 4 of the top are brought together and sealed by heated presser-plates 5. The free end of the fold may be folded upon itself as indicated at 6, Figs. 5 and 7, and the resulting fold may be crimped as shown at 7, Fig. 8, and subjected to pressure while cooling. As shown, the fold 6 is 'produced by an arm 13 hinged to a head 11 movable on a bar 12. The head and bar are moved against the liner and press the fold against an abutment 16, and the continued movement of the head causes the free end of the folding arm to ride over the abutment and to fold the liner edges 4 as shown. The carton is then moved to bring the doubled fold between endless chains 18, Fig. 6, on rollers 19 to hold the parts in position until cool. The crimping shown in Fig. 8 may be produced by the chains. The cartons may be moved to the various positions of work in intermittent movements with periods of rest, or the operating mechanisms may be caused to travel with the continuously moving cartons. Specification 201,559 is referred to.
Patent GB-645722-A (GB)
Title: Improvements in or relating to the mounting and driving gear of internal combustion engines
IPC: F02B75/02
Filed: 1948-02-29
Abstract: 645,722. Crank chambers and driving- gear of two-stroke engines. SHERWOOD, (nÚe KALZ), A. M. Feb. 29, 1948, No. 6374. Convention date, Dec. 13, 1946. [Class 7(ii)] [Also in Group XXXI] An engine is mounted on a bar 28 which extends through the crank-case parallel to the crank-shaft 21, and the driven member, which may be a motor-vehicle wheel 44, is mounted on a sleeve 39 surrounding the bar 28 which is yieldingly prevented from rotating, preferably by an arm 47 thereon held between springs 48 which soften the drive. The sleeve 39 is driven from the crankshaft 21 by a chain and sprocket wheels 30, 32, a clutch 33, an idler wheel 34 and a spur wheel 35. A twin two-stroke engine is described in which parallel cylinders have a common combustion chamber and the two pistons are connected by a forked connecting rod to the crank shaft. The bar 28 and sleeve 39 are surrounded by a further sleeve 36 which seals the crankcase, the engine operating with crankcase compression.
Patent GB-511707-A (GB)
Title: Improvements relating to window raising and lowering mechanisms
IPC: E05F11/38
Filed: 1938-03-01
Abstract: 511,707. Hand-cranks. WILMOT-BREEDEN, Ltd., and SMYE, A. March 1, 1938, No. 6380. [Class 136 (ii)] [Also in Groups X and XXIV], A window regulator of the kind in which a spring-loaded rotary arm is adapted to support the window, comprises a frictional retaining device on its pivot, consisting of two plates formed with interengaging parts which under the pressure of a spring serve to secure the arm in any desired position, whilst at the same time permitting the arm to be readily actuated. In the form shown, the spring-loaded arm d is provided with a circular plate f, formed with radial corrugations g, and which is held in engagement with a similarly corrugated plate a, secured to a fixed portion of the window structure, by means of a spring member comprising a number of resilient fingers i mounted on the spindle c of the arm d. Instead of forming radial corrugations in the plates a, f, one of them may be provided with small, shallow protuberances which engage apertures or depressions in the other plate. The regulator may be operated by a lever k secured to the spindle c, or by gearing interposed between an operating handle, and the arm d.
Patent GB-1165957-A (GB)
Title: Improvements in or relating to an Ice Tray
Inventor: STERNER BERNARD
IPC: F25C1/24
Filed: 1967-02-10
Abstract: 1,165,957. Ice making. B. STERNER. 10 Feb., 1967 [15 Feb., 1966], No. 6408/67. Heading F4H. An ice tray grid has at least one extensible longitudinal wall to which handles are pivoted for stretching and raising the grid to remove ice blocks. As illustrated, a one-piece grid is formed with transverse walls 5 and two longitudinal walls 4 which are of zig-zag form and which have thin portions 8 to allow of extension. Handles 15 pivoted to the walls 4 at 14 have projections 17 which, when the handles are raised, engage tray flanges 2 to raise and stretch the grid. In the inoperative position the handles 15 rest on raised portions 16 of two of the transverse walls. The walls are formed of a plastics material or of thin sheet metal. In other embodiments, Figs. 3-6 (not shown), there may be a single longitudinal wall of zig-zag form with two or four transverse walls to each undulation of the zig-zag wall, and the transverse walls may carry additional short walls to form further ice block compartments. The grid walls need not form a one-piece structure, and the longitudinal walls may be made of rubber.