baber/WOPTO huggingface dataset:
Patent GB-486252-A (GB)
Title: Improved photographic material
IPC: G03C1/32
Filed: 1937-05-03
Abstract: 486,252. Photographic light-sensitive material. GEVAERT PHOTO-PRODUCTEN N. V. May 3, 1937, No. 12567. Convention date, May 2, 1936. [Class 98 (ii)] A photographic material comprises a silver halide emulsion layer in which portions of emulsion project above the general layer owing to the presence in the emulsion of a multiplicity of relatively coarse solid grains or conglomeration of grains. The grains may be incorporated in the emulsion by stirring. The grains should have a low covering power and may be organic substances, e.g. artificial resin or inorganic products, e.g. ground glass. The previous use of kieselguhr and of fibre dust (as disclosed in Specification 274,075, [Class 98 (ii)]), also is described. The Specification as open to inspection under Sect. 91 also describes grains of a size which pass through a sieve of 20 meshes per linear centimetre. Grains of silicates or of condensation products of urea or phenol with an aldehyde may be used. This subjectmatter does not appear in the Specification as accepted.
Patent GB-761357-A (GB)
Title: Improvements relating to the manufacture of organo-tin compounds
Inventor: POLKINHORNE HARRY
IPC: C07F7/22
Filed: 1953-05-06
Abstract: Compounds of formula R4Sn are prepared by reacting a halide of formula RX in which R represents a hydrocarbon group containing at least two carbon atoms and X represents a halogen atom with an alloy of magnesium and tin which has been prepared in vacuo or in a chemically inert atmosphere.  The alloy may be prepared in a rare gas atmosphere (see Group II) and stored under xylene.  In an example anhydrous n-butyl bromide is refluxed with the ground xylene damped alloy (29 per cent Mg.: 71 per cent Sn ­ Mg2Sn).  The residue is extracted with benzene and after removal of the benzene solvent is fractionated under high vacuum to give tetra-n-butyl tin.  Other examples describe the preparation of tetra-ethyl tin, tetra-n-propyl tin, tetra-iso-amyl tin and tetra-phenyl tin.ALSO:A magnesium-tin alloy suitable for the preparation of organo-tin compounds (see Group IV(b)) is prepared by fusion of the metals in vacuo or in a chemically inert atmosphere, e.g. argon or other rare gas.  The preferred alloy has a constitution corresponding to 29 per cent of magnesium and 71 per cent of tin, i.e. of formula Mg2Sn.  In an example tin and magnesium are heated to 900 DEG C. in a stainless steel crucible in an atmosphere of argon.  The coded alloy hammered out under anhydrous xylene and ground in an iron mortar under xylene.
Patent GB-1436805-A (GB)
Title: Hydraulic pile driver
IPC: E02D13/04
Filed: 1974-03-21
Abstract: 1436805 Pile drivers FRIED KRUPP GmbH 21 March 1974 [22 March 1973] 12653/74 Heading E1H A hydraulic pile driver comprises a carrier frame (not shown) and a column 1 fixed to carrier element 2 for vertical movement in guide 3 on the carrier frame. The column consists of overlapping upper 1' and lower 1" parts pivoted together at 6 so that the column may be erected or broken by pivotal movement of its upper part with respect to its lower part. Endless chain 14 encircles the column longitudinally, hammer 4 attached to the chain is .slidably mounted on. the column and elements 12 guide the work 11 to be driven by the hammer. A motor 19 external to the column is operatively connected to the chain, a hydraulically operated locking device 34 locks the lower part of the column against movement with respect to the carrier frame and a hydraulically operable brake 27 locks the chain to the upper part of the column. The motor is effective, through the agency of the chain, to impart pivotal movement to the upper part of the column with respect to the lower part when the brake and locking device are both engaged, to raise and lower the hammer with respect to the column when the brake is released and the locking device is engaged and to raise and lower the chain with respect to its guide when the brake is engaged and the locking device released.
Patent GB-1345910-A (GB)
Title: Gas turbine engines
IPC: F02C7/18
Filed: 1971-05-03
Abstract: 1345910 Gas turbine engines - control of cooling air GENERAL ELECTRIC CO 3 May 1971 [3 Aug 1970] 12679/71 Heading F1G A gas turbine engine comprises a compressor and a vortex chamber in communication with the working fluid path of the compressor, there being an outlet from the vortex chamber, and means for varying the strength of a natural vortex which forms in the chamber upon rotation of the rotor so as to vary the mass flow rate of fluid passing through the chamber from the fluid path of the compressor to the outlet. The engine shown comprises a compressor 14, combustion equipment 16 and a turbine 22, the compressor rotor comprising discs 26 and the turbine rotor comprising discs 42, the compressor and turbine rotors being connected together by a shaft member comprising conical portions 52, 54. One of the compressor rotor discs comprises two discs 62 spaced apart to form a vortex chamber 64 therebetween into which air tapped off the compressor flow path through openings 66 flows, the air discharging from the vortex chamber into a first plenum chamber 68 defined within the compressor rotor, as indicated by arrow 76. The air then flows through openings 72 in the conical portion 52 of the shaft into a second plenum chamber 70, then through openings 82 in the conical portion 54 of the shaft into a third plenum chamber 78 defined within the turbine rotor. The air then flows radially outwardly between the turbine rotor discs 42, through openings in the connecting member 46 to passages in the turbine rotor blades for cooling thereof. Air under higher pressure is tapped from the compressor through openings 102 and passes through line 100 to a control valve 98 then through line 96 to a manifold disposed adjacent one of the discs 62. The air then discharges through a series of nozzles 92 into the vortex chamber 64, the nozzles discharging in a circumferential direction opposite to the direction of rotation of the rotor. The valve 98 is of centrifugal type such that at maximum speed the flow of air through nozzles 92 is a maximum so that formation of a natural vortex in chamber 64 is prevented and flow of cooling air from the chamber 64 is a maximum.
Patent GB-290282-A (GB)
Title: Improvements in grids for saw gins
IPC: D01B1/08
Filed: 1928-05-01
Abstract: 290,282. Soc. Alsacienne de Constructions MÚcaniques. May 12, 1927, [Convention date]. Gins.-The bars 1 of a grid for a saw gin are made from drawn or rolled iron and are of a cross-section which diminishes in width from the upper to the lower side of the grid. The ends of the bars 1, Fig. 6, are secured at the correct distance apart in racks 3, which are secured by bolts 5 to the cross bars 6, 7 of the gin. Each rack 3 carries a number of bars, and the racks are capable of slight adjustment on the cross bars 6, 7.
Patent GB-477943-A (GB)
Title: Improvements in or relating to sound film apparatus
IPC: G11B15/34
Filed: 1937-05-04
Abstract: 477,943. Kinematograph apparatus. ZEISS IKON AKT.-GES. May 4, 1937, No. 12744. Convention date, May 8, 1936. [Class 97 (i)] In sound-film apparatus having a filmdriven rotatable drum film guide and a pair of interconnected sprockets or a single sprocket over which the film passes during its passage both to and from the drum, the sprockets are driven solely by the film and means are provided for tensioning the part of the film between the sprockets or sprocket and the guide. The tension necessary to draw the film over the guide is less than that applied by the tensioning means. As shown the film-driven sprockets T<1>, T<2> are carried respectively on gears Z<1>, Z<2> interconnected by a gear Z<o>, the sprocket T<1> being connected to the gear Z<1> by a spring K so that on threading the film over the guide B a tension S can be applied to the film. The film F is fed by a sprocket T' and drawn over the guide by a sprocket T<3>, an oil or air stream D assisting to drive the guide. Where a single sprocket is used the tension is applied by a roller spring- pressed against the film between the guide and the sprocket.
Patent GB-345853-A (GB)
Title: An improved side-delivery hay rake, swath turner or like machine
IPC: A01D80/00
Filed: 1930-04-25
Abstract: 345,853. Haymaking. MARTIN'S CULTIVATOR CO., Ltd., MARTIN, W. E., and MILLS, F. W. J., Ryhall Road, Stamford, Lincolnshire. April 25, 1930, No. 12779. [Class 6 (iii).] In a side-delivery rake, swath-turner or like machine short shafts p carrying flyers connected by rake bars are mounted in fittings o as described in Specification 345,537; these fittings are carried at the ends of an arched crossbar n secured to the main frame a by brackets m and also carrying a pulley over which an adjusting chain g passes. The chain is connected at one end to a lever k and, after passing over the pulley on the bar n, passes under a pulley h on the main frame and is connected to a bracket supported by the caster wheel fork e. The main frame is fixed to a sleeve riding on a stem attached to this fork. The sheave i of the pulley on the arched bar is mounted upon two similar castings each having a flange r to hold the sheave in position and each having an inclined lug fitting the bar. Pins t passing through the castings and the arched bar hold them in position. The middle part j of the bar is preferably made tubular.
Patent GB-110177-A (GB)
Title: Improvements in Telephone Systems.
IPC: H04M5/08
Filed: 1916-09-09
Abstract: 110,177. Western Electric Co., and Reinke, A. E. Sept. 9, 1916. Exchange systems.-A toll line terminates at each end in a jack and a plug cord so that the toll line operator may act as an A-operator when using the jack to establish an outgoing call or as a B- operator when using the plug to extend an incoming call. The toll line is supervised at the outgoing end only, the B-operator receiving a single lamp clearing signal when the connexion is taken down at the A-end of the toll line. The Figure shows a toll line 1, 2 extending from one exchange to another, and it is assumed that a subscriber 100 on one exchange is to be connected to a subscriber 200 on the other. The A-operator, having selected an idle toll line, depresses the key 102 associated therewith, thus connecting the 110-volt battery 103 to the toll line and through relays 107, 108, wire 109 to ground. Relay 107, polarized to respond to this current, connects the B-operator's speaking set to the toll line, and closes the circuit of the toll line lamp 128 to indicate to the B- operator the line to which she is connected. The B-operator receives particulars of the call required and inserts plug 111 in a jack 112 leading to the desired exchange. The insertion of the plug 111 energizes relays 110, 114, the former removing the short circuit around a 12,000-ohm resistance 115 in series with the relays 107, 108. Having communicated with the B-operator, the A-operator connects the calling-line to the toll line by a double cord, the insertion of the plug in jack 101 closing a circuit through relays 129, 117 to ground at the armature of relay 118. Relay 129 lights the lamp 130 and relay 117 (1) open-circuits relay 119 to prevent this from energizing, and (2) closes a circuit for relay 120 which connects the negative pole of a 110-volt battery 122 through relay 123 and both sides of the toll line to relays 107, 108, and resistance 115 to earth, relay 110 being energized at this stage. The relay 123 does not energize in series with the resistance 115, and relay 107 is polarized so as not to respond to this current, but relay 108 energizes and opens the circuit of lamp 116. When the wanted subscriber removes his receiver, relay 110 is de-energized, thereby short-circuiting resistance 115 so as to energize relay 123, which in turn energizes relay 118, which throws the right-hand winding of relay 117 into circuit with relay 129, causing this to de-energize and extinguish the lamp 130. When the called subscriber replaces his receiver, relay 110 throws the resistance 115 in circuit with relay 123, causing the relay 129 to energize again and glow the lamp 130. The withdrawal of the plug from jack 101 by the A- operator releases the relay 117, which de-energizes relay 120, causing the disconnexion of the battery 122 from the toll line and relays 107, 108, the latter lighting the clearing lamp 116 to inform the B-operator that the A-operator has taken down the connexion.
Patent GB-201654-A (GB)
Title: Improvements in or relating to artificial hands
IPC: A61F2/58
Filed: 1922-05-06
Abstract: 201,654. Hanton, T. May 6, 1922. Limbs, artificial. - Relates to artificial hands of the type in which the fingers and thumb are operated from a movable plate and each contain a spiral spring and a flexible wire; and consists in providing a flat spring 3 within each spiral spring, one end being attached to an end cap 4, the other to the movable plate. A separate plate 10 is provided for the thumb and is attached to the main plate 7 by a wire 12. The plates are mounted on guide-rods 8, 9, 11 and are moved forward to close the fingers by means of a connecting-link 14 on a pivoted ratchet sector 15 operated by a wire 16. A detent 18 locks the ratchet in any position and can be withdrawn by means of a second wire 19, the spiral springs 1 and flat springs 3 causing the hand to open.
Patent GB-311322-A (GB)
IPC: B43M3/02
Filed: 1929-04-25
Abstract: 311,322. Spohn, G. May 9, 1928, [Convention date]. Creasing.-Letters are creased so as to be folded for insertion in envelopes, by a device comprising a base-plate a on which the letters are placed, and one or more pivotally-mounted creasing bars b, c adapted to press the letters into grooves a' formed in the plate a. The bar b is carried by levers e pivoted at d to brackets on the plate a and the bars c are similarly pivoted at f, springs i, k being provided to hold the bars b, c raised normally. In operation, the bar b is first separated to crease the letters which are then folded over by hand, whereupon the blades c are operated so as to crease the letters at rightangles to the first crease and the folding is completed by hand. The bars b, c may be made adjustable for various size letters and a number of grooves a<1> provided on the base plate to cooperate therewith.
Patent GB-205840-A (GB)
Title: Improvements in or relating to wheel rims
IPC: B60B25/16
Filed: 1923-02-09
Abstract: 205,840. Thomas, J., Thomas, J., and Thomas, F. Feb. 9, 1923. Tyre attachments to rims. - The detachable side-flange A having key-hole slots E to co-operate with studs E' projecting from the main rim-part B is locked by means of a spring-actuated plunger L. The latter is formed with a T-head P which is turned across a slot in the flange A when this is in its operative position. For adjusting the flange A for attachment or detachment, a cottar is driven into one or other of pairs of slots G, G<1>-H, H<1> formed in the rim-parts A, B respectively. For tightening purposes, the flange A is formed with wedge surfaces adjacent the slots E.
Patent GB-567468-A (GB)
Title: Improvements in adjustable inductive coupling devices for radio circuits
IPC: H03H7/01
Filed: 1943-08-11
Abstract: 567,468. Inductances. JOHNSON LABORATORIES, Inc. Aug. 11, 1943, No. 13009. Convention date, May 16, 1942. [Class 38 (ii)] In a coupling coil arrangement for high-frequency circuits in which each of the coils 15, 16 is provided with a screw-adjusted core 21, 22, the core 21, which is adjusted by a screwed tube 23, is made hollow to afford screw-driver access to the core 22 which is carried on a screwed rod 25. Friction locking devices 26, 33 are provided for retaining the cores in adjusted position. The coils are surrounded by a screening can, the top of which is apertured to afford screw-driver access to both cores, the aperture being normally closed by a pivoted shutter.
Patent GB-1003192-A (GB)
Title: Improvements in hoppers for skip winding and discharging installations
Inventor: PRICE EDWARD LESLIE
IPC: B65G69/00
Filed: 1961-04-11
Abstract: 1,003,192. Feeding material from skip hoists; hopper. QUALTER, HALL & CO. (SALES) Ltd. April 10, 1962 [April 11, 1961], No. 13055/61. Headings B8E and B8S. A shoot or hopper is provided between discharging skips and a feed conveyer, to reduce the degradation of the material being handled by the provision of a fixed curved portion beyond the discharge door, in place of the shoot conveyer combination of Specification 888,060. In Fig. 1, the hoppers 7 have curved floors sloping from the inlet to a door 10 horizontally slidable by a motor 11 to allow discharge to a vibratory conveyer 9. In the embodiment of Fig. 4, the hoppers 7 have curved floors 7c and a pivoted door 14 operated by an hydraulic cylinder 20 to allow discharge to an endless conveyer 21. It is stated that the shaping of the hoppers absorbs the momentum of the coal or other bulk material, thus avoiding degradation thereof.
Patent GB-643618-A (GB)
Title: Pumping unit
IPC: E21B43/12
Filed: 1948-05-13
Abstract: 643,618. Toothed gearing. OIL WELL SUPPLY CO. May 13,1948, No. 13126. Convention date; May 13, 1947. [Class 80(i)] The crankshaft housing and gear box 10 of a pumping unit for oil wells for transmitting rotary movement to a crankshaft 9 for oscillating a beam 4 which operates " sucker" rods is fabricated. from welded members 11, 12 and portions of the supporting frame members 1. Bearing housings 13 for the crankshaft 9 are also welded into the side walls 11 and re-inforced by members 18.
Patent GB-663478-A (GB)
Title: Improvements in folding furniture
IPC: A47B3/12
Filed: 1949-05-18
Abstract: 663,478. Collapsable furniture. RUSSELL, A. H. May 18, 1950. [May 18, 1949] No. 13204/49. Class 52 (iii). A folding seat has two legs 2, 4 hinged together at their inner edges to open out in alignment or to fold with the outer face of one leg lying over the outer face of the other leg, a third leg 3 hinged to the inner side of leg 2 to fold flat thereagainst or to open out at right angles thereto and a seat member 1 hinged to the third leg 3 so as to fold flat on to it or to be opened out to rest on top of the three legs. The top 1 may be held in the opened out position by a spring clip 9. A case for a set of such seats is described, the top and bottom of which can be opened out to form a picnic table, folding legs being hinged to the inside of the case.
Patent GB-216686-A (GB)
Title: Heat spreader for hot plates
IPC: F24C15/10
Filed: 1923-05-17
Abstract: 216,686. Flavel, P. W. May 17, 1923. Heat-distributors.-A heat-spreader A for use over a gas ring D on hot-plates is made with exhaust apertures E at the further end and with a supporting skirt B. Reference has been directed by the Comptroller to Specification 6355/01.
Patent GB-132363-A (GB)
IPC: B60K17/16
Abstract: 132,363. Lanchester, F. W. Sept. 17, 1918. Springs, arrangement of; guiding vertical play. -The driving wheels are mounted on stub axles fitted with resilient hydraulic suspension means as described in Specifications 121,765 and as described in Specifications 121,765 and 121,767, [Class 108 (iii), Springs &c.], and are driven by cardan shafts passing through the stub axles. The suspensions for each wheel may be independent and the cardan shafts also act as tie rods. The axle comprises a pair of hollow members 8, Fig. 1, which may be partitioned at 15 to form separate reservoirs, and are fitted with pairs of cylindrical members 10 in which ride plungers 12 supported by cylindrical members 2 which carry the stub ales 1, Fig. 4. Replenishers of the kind described in the abovementioned Specifications are mounted on the lugs 9.
Patent GB-510914-A (GB)
Title: Improvements in or relating to fire extinguishing apparatus
IPC: A62C31/24
Filed: 1938-05-04
Abstract: 510,914. Load-handling machines. TAPPE, W. May 4, 1938, No. 13330. Convention date, May 31, 1937. [Class 78 (iii)] [Also in Groups XXI, - XVII, and XXII] Means for attacking fires, particularly in tank installations, comprises an extensible, rotatable, and transportable pipe for discharging a medium, such as foam, upon the fire, and associated tools for,facilitating approach to the seat of the fire. As shown, a telescopic pipe 3-5 is adjustably pivoted at 11 on a wheeled turntable 10, and has, at its outer end, an elbow pipe 6 connected to a casing 15, Fig. 2. The casing has lateral outlets fitted with normally open valves 21, 21<1> and a central passage normally closed by a valve 20, and supports worm spindles 12, 12<1> meshing with a central worm 13 carrying a cutter 8. A hood 18 is arranged about the casing. In use, the pipe 3-5 is adjusted so that the cutter engages a suitable part of the burning tank. Water under high pressure is admitted from a hose 31 to the pipe. The water closes the valves 21, 21<1>, opens the valve 20, and rotates the spindles 12, 12' to operate the cutter. When the latter has cut a suitable hole in the tank, the supply of water is cut off, and foam under low pressure is admitted to the pipe, so that it flows past the open valves 21, 21<1> and through the hood 18 into the tank. The cutter, whilst in action, is cooled by the waste water issuing from ports 17. The motor 12-13 may be driven by steam, gas, or electrically. The cutter 8 may be replaced by a gripping member, rotation of which is used to open or close valves used for emptying the tanks. In a modification, used for cutting a hole in the side of a tank and draining the contents therefrom, the hood 18 has an enlarged mouth provided with a sealing ring, and is connected to a discharge conduit for leading the contents of the tank to a remote position. In another modification, an oxy-acetylene blowpipe or an electrical cutter is arranged at the end of the pipe, through the interior of which the gas-supply pipes or electric leads are carried. Such apparatus may be used for cutting up structural material which impedes approach to a burning tank. In another arrangement, a mechanical or electro-magnetic grab is arranged on the pipe, for moving obstructive material. Additional pipe sections may be arranged adjacent the casing 15 for supplying cooling fluid to the cutter or other tool.
Patent GB-197952-A (GB)
Title: Process for the production of silicon-containing aluminium alloys of great strength and ductility
IPC: C22C21/02
Filed: 1923-05-18
Abstract: 197,952. Goldschmidt Akt.-Ges., T. May 20, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Alloys.-Aluminium alloys of great strength and ductility containing silicon are made by melting pure aluminium or an aluminium alloy with a silicofluoride; the alloy may take up from 5 to 20 per cent of silicon.
Patent GB-133892-A (GB)
IPC: A47H1/142
Abstract: 133,892. Holm, S. V. March 4, 1919. Clip and like brackets.-Curtain-rods, drapery poles, &c. are supported between two clamping- plates mounted on bent arms supported in fixed sockets. The clamping-plates 7, 8 carry cord pulleys 11 and are held between a screw 10 and a shoulder on the bent arm 4 which is supported by the socket 2.
Patent GB-134049-A (GB)
IPC: D01H7/16
Abstract: 134,049. Lacroix, J., and Hitch, M. R. Oct. 30, 1918. Shuttles.-Yarn is wound upon receiving- spindles that are adapted to be mounted in a ring spinning-frame of a mule and, when filled, to be transferred to the shuttle of a loom. The spindle is connected to the revolving supporting-member in the spinning-machine and the the loom shuttle by a device comprising a socket 39, Fig. 9, threaded for attachment to the pivoted support 51 in the shuttle. The walls of the socket are split longitudinally and recessed to receive a spring 55, which engages a sliding sleeve 49 and forces it outwards to cause the socket to grip the stem 47, Fig. 7, of the yarn-receiving spindle 45. The sleeve can be retracted manually to release the stem. To prevent accidental loosening of the sleeve in the shuttle, a loching- pin 59<1> passes through apertures in the sleeve and the socket. A duplicate retaining-device is fitted on the supporting-member of the spinning- frame.