baber/WOPTO huggingface dataset:
Patent GB-581828-A (GB)
Title: Method and apparatus for use in production of sleepers, beams and similar structures of pre-stressed reinforced concrete
IPC: E04G21/12
Filed: 1944-08-24
Abstract: 581,828. Wire-straining devices. DOWSETT ENGINEERING CONSTRUCTION, Ltd., BARBER, R. S. V., SMYTH, A. H., and LESTER, D. R. Aug. 24, 1944, No. 16166. [Class 45] [Also in Groups X and XXIX] In a method for applying tension to the reinforcing wires of sleepers, beams &c. made of pre-stressed reinforced concrete [see Group X] the straining device comprises a wire-tensioning truck movable on rails running transversely to the production lines described in Specifications 572,385, 572,390, 572,391, [all in Group V], and 581,815, [Group X]. Upon a rectangular chassis of channel bars 13 fitted with grooved wheels 15 and a clamp 16, two longitudinal bars 14 carry a base plate having secured thereto a cross bar 24 from which two fluid filled cylinders 17 are suspended by means of the weighted levers 23, the hinged levers 22 and the collars 21. The rear ends of the cylinders are connected to the flange 19 of the base plate by the brackets 18 and universal joints 20. The cylinders are fitted with vanes and piston rods 29 to which a wire securing device 27 is connected to effect the tensioning of the wire 26 by the pressure of the fluid which enters the cylinder by the conduits 31 from the reservoir 32. The cylinders are double acting and the piston rods may be fully extended from the cylinder. Control valves 34 and 36 are provided for connecting the fluid conduits to the compressed air inlet 35 or to the exhaust 37. After tensioning the wires are held in pedestals or jackheads as described.
Patent GB-594271-A (GB)
Title: Improvements in and relating to wire-cutting pliers
IPC: B26B17/00
Filed: 1945-06-26
Abstract: 594,271. Pliers. PHILIPS LAMPS, Ltd., and BOUETTE, R. A. F. June 26, 1945, No. 16289. [Class 61 (ii)] Wire-cutting pliers have the jaws provided with a hood adapted to form, together with the cutting edges, a closed box when the jaws are closed so as to retain the severed ends. The attachment consists of a plate 4 secured by a screw 5 to the back of each jaw, the two plates 4 having right-angled extensions 3 which meet when the jaws are closed in the plane of the cutting edges and are curved over at the top to lie against the rear faces of the blades. Spring plates 6 may be introduced between the plates 4 and their holding screws 5 to enable longer severed pieces of wires to be held between the edges of the parts 3.
Patent GB-380769-A (GB)
Title: Improvements in or relating to microscopes
IPC: G02B21/08
Filed: 1932-06-09
Abstract: 380,769. Microscopes. LEITZ GES., E., Optical Works, Wetzlar, Germany. June 9, 1932, No. 16320. Convention date, Dec. 5, 1931. [Class 97 (i).] Illuminating and observing apparatus of the type in which the rays for illu. minating the object are transmitted from behind the objective comprises a dry objective, an annular condenser surrounding the objective and adjustable relatively thereto, and an immersion attachment preferably adjustable relatively to the condenser, and having a glass front of thickness not less than that of the front lens of the objective. As shown, the dry objective A having a front lens A<1> is surrounded by an annular condenser B in a threaded mount B<1> engaging an internally-threaded tube C, concentric with which is a sleeve D secured to the mount B<1>. Rotation of the sleeve D adjusts the condenser B relatively to the objective A. An immersion cap E engaging an external thread on the sleeve D has a conical glass front E<2> of thickness at least equal to the thickness of the lens A<1>. Rotation of the cap E adjusts it relatively to the objective and condenser. The construction is such that the image-forming rays X passing up through the front E<2> to the objective are always when they leave the glass front E<2> inside and clear of the annular illuminating rays Y. Movement of the front may be used to flatten the object. The back surface E<3> of the front may be spherical. Specification 373,080 is referred to.
Patent GB-530115-A (GB)
Title: Improvements in or relating to frequency changing circuits
IPC: H01J43/02
Filed: 1939-06-03
Abstract: 530,115. Valve modulating circuits. KOLSTER-BRANDES, Ltd., SHANNON, D. S. B., and CHATTERJEA, P. K. June 3, 1939, No. 16373. [Classes 39 (i) and 40 (v)] A modulating or frequency changing circuit comprises separate oscillatory circuits L1 C1; L2 C2 associated by switches with separate parts F1, F2 of a divided electrode of a valve. The circuit shown is adapted to receive one or other of two television transmissions. The signal is applied to the control grid B of a dynatron oscillator valve, the electrons being accelerated by grid C, and deflected by electrode D on to the secondary emitting electrodes F1, F2, only one of which is in action. The collecting electrode E receives the resultant intermediate frequency signal. The electrode E may be split instead of the electrode F. Frequency changing circuits as disclosed in Specification 524,049 may be used with the split electrode valve assembly.
Patent GB-333327-A (GB)
Title: Improvements in closure means for canisters, jars and the like
IPC: B65D43/02
Filed: 1929-05-28
Abstract: 333,327. Croxford, F. C., and Oxo, Ltd. May 28, 1929. Closures completed by outstanding packing - rings. - Closures for jars, canisters, &c. comprise a cap b having an outwardly tapering or flared flange b<1> and a packing ring p, of circular cross section, of rubber &c. placed around and at or near the upper end of the jar etc.; application of the lid compresses the ring between the lid flange and the jar &c. by rolling contact. The flange of the cap may have a parallel portion above the flared portion.
Patent GB-169243-A (GB)
Title: Improvements in and connected with telephone instruments
IPC: H04M1/04
Filed: 1920-06-18
Abstract: 169,243. Lazarus, S. A. June 18, 1920. Supporting.-The receiver c is carried in a bracket on the end of a lazy-tongs or like extensible support, so that it falls naturally to the correct position when the support is extended and comes also to the correct position on the hook d when the support is collapsed.
Patent GB-129283-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: JUNGERSEN THOGER GRONBORG
IPC: F02B75/02
Filed: 1919-07-02
Abstract: 129,283. Jungersen, T. G. July 1, 1918, [Convention date]. Driving-gear.-To impart strokes of different lengths to the piston of a four-stroke-cycle engine, the connecting-rod is attached to a crankarm 7 carrying the wheel 3 of a sun-and-planet gear. During the suction and compression strokes, the crank-pin traverses the portions I, II and II, III respectively of path shown in dotted lines in Fig. 6, the portions III, IV and IV, I being traversed by the pin during the combustion and exhaust strokes.
Patent GB-242198-A (GB)
Title: Improvements in and connected with boiler furnaces
IPC: F23M5/08
Filed: 1925-06-26
Abstract: 242,198. Stirling Boiler Co., Ltd., and Horsman, H. S. June 26, 1925. Walls. - A water-cooled furnace wall is provided on the surface exposed to the fire with shallow corrugations, channels, or recesses in which are arranged water tubes, as shown in Fig. 2. The recesses are of greater curvature than the tubes which are exposed to direct or reflected heat over substantially the whole of their surface.
Patent GB-240772-A (GB)
Title: Improvements in vehicle wheels
IPC: B60B25/16
Filed: 1925-06-26
Abstract: 240,772. Kendell, T. B. June 26, 1925. Rim flanges, tools for removing and replacing. - A tool for manipulating a detachable rimflange is formed with a cranked end p to engage a fulcrum-hole q in the wheel, and a projecting stud r for disengaging the flange locking-bolt l.
Patent GB-276474-A (GB)
Title: Improvement in combination grease gun and booster pump
IPC: F16N3/12
Filed: 1926-07-01
Abstract: 276,474. Hundemer, W. F. July 1, 1926. Single-acting suction valveless pumps; suction reservoirs.-A grease pump comprises a reservoir 1 fitted with a cap 4 in which a transverse bore 7 is formed to serve as the barrel for a pump plunger 11. The grease enters the barrel 7 from the reservoir 1 through two ports 8 and is delivered through a port 9 when the plunger 11 is depressed by a lever 12. The reservoir is fitted with a rod 18 on which a piston 19 is slidably mounted and held against an end nut 23 by a spring 24. The rod 18 is locked against outward movement by a spring catch 31 embracing it. The reservoir may be filled by extracting the cap 4, immersing the open end in grease, and withdrawing the piston 19. In another form the grease enters the barrel 7 through a nipple screwed into the conical end of the reservoir, and the barrel carries an annular flange which supports the end of the reservoir. Air entrapped in the reservoir 1 may be released by unscrewing the end 4 sufficiently to open a vent 35.
Patent GB-1212415-A (GB)
Title: A method and apparatus for packaging a mass of compressible of resilient material
Inventor: HULLHORST WILLIAM BREED
IPC: B65B63/02
Filed: 1968-04-05
Abstract: 1,212,415. Packaging-machine. OWENSCORNING FIBERGLAS CORP. 5 April, 1968, No. 16622/68. Heading B8C. Fibrous, sponge or like material, compressed between two surfaces, is pushed from between the surfaces into a receptacle inside which is provided air film bearing surfaces to reduce the friction of insertion. In one embodiment, a stack of fibrous bats placed in a container 10, Fig. 2, is compressed by a ram 20 to a position shown in chain lines. The ram and container base 30 have perforations, slots &c. 24, 34 respectively through which air is blown to form an air cushion which reduces the frictional forces between the stack and the base and ram. A ram 41 pushes the stack laterally out of the container into a receptacle, e.g. a sleeve, held by a clamp 45 over the end of a shoot 50 also having air holes 55, 56. Side walls (58, 59) may be added to the shoot, Fig. 3, not shown, and a low friction plastics sheet (46) adhered to the top of the shoot may assist guiding the stack into the receptacle. In a further embodiment, Fig. 4, a perforated platen 72, separated from the ram 20, and a ram 71 having an extended perforated base portion are provided. As the stack 15 is compressed the ram and platen 72 interlock to form a U-shaped carrier, air being supplied along the shaft 73. The perforations may extend through the carrier to form air cushions between the ram and the base and the receptacle walls as the carrier moves into the receptacle. The package is held at the sides by grippers (81, 82), Fig. 5, not shown, as the carrier is withdrawn. In a modification of the arrangement of Fig. 1 a pair of opposed plenums (110, 120), Fig. 7, not shown, having perforations on their facing sides lie in extension of the top and bottom walls of the shoot and outside of the receptacle. Air is blown into the receptacle 105, Fig. 8, an open ended sleeve, by the plenums through perforations 106, 107 in its sides to form the air cushion during insertion of the material.
Patent GB-140949-A (GB)
Title: Spark-gap device
IPC: F02P17/12
Filed: 1919-07-03
Abstract: 140,949. Meissner, G. R. July 3, 1919. External sparkgaps.-A sparkintensifier consists of an insulator 10, preferably transparent, having centrally alined cavities 11, 12 separated by a partition 13 but conr.ected electrically by a bridge 14. Metal caps 17, 18 are secured at each end of the insulator, with paper washers 19, 20 interposed, and are formed with sockets 21, 24 projecting within the cavities 11, 12 respectively. The inner end of the socket 21 terminates in a rounded contact-point 22, but the end of the socket 24 is open so that the contact carried by the screwed electrode 25 may be adjusted with respect to the bridge 14.
Patent GB-791628-A (GB)
Title: Improvements in and relating to steam admission systems for turbines
IPC: F01D9/06
Filed: 1956-05-30
Abstract: 791,628. Turbines. NAAMLOOZE VENNOOTSCHAP BRONSWERK. May 30, 1956 [Aug. 2, 1955], No. 16754/56. Class 110 (3). [Also in Group XXVIII] Live steam is admitted to a turbine casing made of cast iron through a steel tube which is supported in the turbine casing and connected to the turbine nozzle. Live steam flows through the admission pipe a to the nozzle b. A ring f welded on the end of pipe a is enclosed, together with gaskets, between a nut c screwed on the nozzle b and a nut e screwed into the turbine casing g.
Patent GB-1046313-A (GB)
Title: Process for the preparation of chlorine, bromine or iodine and for the preparation of halogenated hydrocarbons
IPC: C01B7/13
Filed: 1965-04-21
Abstract: Cl2, Br2 and/or I2 are prepared by contacting a gaseous mixture of the corresponding hydrogen halide and O2 with a catalyst containing at least one Ru compound. The compound may be RuCl3 and may be present as 0.1 to 15% of a support e.g. silica gel, Al2O3, pumice. The reaction may be carried out at 250-500 DEG  C. and a pressure of 0.1-100 atm.
Patent GB-330396-A (GB)
Title: Vehicle bodies
IPC: B60N2/14
Filed: 1929-05-31
Abstract: 330,396. Riley, A., and Hallwood, R. May 31, 1929. Seats and seat backs, arrangement and disposition of.-In vehicle bodies having side doors hinged at their rear edges a seat 2 is connected with a side door 3 so that the front of the seat is turned towards or through the door aperture when the door is opened, the seat moving about the axis of the door hinge. Clips 6 secured to the seat 2 slide on the bar 5 attached to the horizontal member 7 of a triangular metal frame 8 fixed to the door. The seat is provided on the side remote from the door with rollers or the like running on metal tracks 11, or on the floor of the vehicle, and it may be adjusted longitudinally.
Patent GB-604262-A (GB)
Title: New or improved manually-operated mechanism for producing rotary motion
IPC: F16H21/44
Filed: 1946-06-03
Abstract: 604,262. Hand or foot driving-mechanisms. WATKINS, W. J. June 3, 1946, No. 16787. [Class 136 (ii)] [Also in Group XXXIII] Hand or pedal driving- mechanism for a crankshaft 20 with a pair of cranks 21 set at 180 degrees, comprises a pair of operating levers 24, each connected at one end 25 to a crank and fulcrumed intermediate its ends at 26 on a link 23, or equivalent, mounted to rock on a fixed pivot 22. The link 23 resists bodily lateral movement of the lever 24, whilst allowing longitudinal movement and pivotal movement on the fulcrum 26, so that both downward and longitudinal movements applied by the operator to the free end 27 of the lever are effective in driving. Dead-centre positions are thus eliminated. The mechanism is shown in Fig. 1 applied to a water craft comprising a pair of parallel floats 1 connected by parts 2 and 3, the drive being transmitted from the crankshaft to a propulsion screw 16 through bevel gears 28, 29 and a flexible shaft 17. A vertical plate 4 acts as a bearing for the crank-shaft 20 and also as a mounting for a shaft 22 on which the rockers 23 are carried. Steering is effected by swivelling the screw 16 laterally. For this purpose it is carried in a bearing 14 mounted on a vertical rock-shaft 12 connected by cords 10 to arms 9 on a steering member 8. The levers 24 are furnished with bobbin pedals 27 for operation by a person seated at 18.
Patent GB-745938-A (GB)
Title: Improvements in or relating to duplex aluminium base alloy products
IPC: B32B15/01
Filed: 1953-06-18
Abstract: A duplex aluminium base alloy product in the solution heat treated and artificially aged condition comprises a core member containing 1,83-4,5 per cent Cu, 6,9 per cent Zn, the ratio Cu : Zn being within the range 0,2-0,7, 1-3,5 per cent Mg and the balance Al, and a protective coating containing 0,5-2,5 per cent Zn, balance Al, the core having a maximum solution potential of 0,840 volts and the coating a minimum solution potential of 0,925 volts.  The core member may also comprise 0,0005-0,05 per cent Be; up to 1 per cent in all of B, Nb, Mo, Ta, Ti, W, V and Zr; up to 2 per cent in all of Cr and Mn; and Li, the content of Li + Be being 0,001-0,02 per cent; and the coating may comprise 0,01-0,5 per cent Sn or 0,01-1,5 per cent Cd or both, the content of Cd + Sn not exceeding that of Zn; and up to 0,05 per cent Cu.  Fe and Si may be present as impurities in both base and coating; nickel should be absent but, if present, should not exceed 0,1 per cent.  The coating may be on one or both surfaces and may be applied by mechanical working e.g. rolling of a superposed wrought sheet or a cast or wrought base, or by spraying or casting.  The solution heat treatment may comprise heating at 800-975 DEG F. for 5 minutes to 5 hours, followed by quenching to room temperature and ageing may comprise heating at 200-350 DEG F. for 2-50 hours and allowing the products to cool to room temperature: ageing may be carried out at a constant temperature or at progressively increasing temperatures within such range, increase being continuous or stepped.
Patent GB-1094288-A (GB)
Title: Photosensitive material
Inventor: DANHAUSER JUSTUS
IPC: G03C1/695
Filed: 1966-04-18
Abstract: 1,094,288. Photo-sensitive material. AGFAGEVAERT A. G. April 18, 1966 [April 27, 1965], No.16882/66. Heading G2C. A print out photo-sensitive material in the form of a layer comprises an aryl sulphazide or alkyl sulphazide in which the alkyl or aryl groups may be substituted e. g. by alkyl, alkoxy, sulphazide, chloro, bromo, cyano, nitro, hydroxyphenyl, carboxyl or functional derivatives thereof or sulpho groups, or a dialkyl amino sulphazide; and one or more dye forming compounds of the following formulae: - in which y = S, O, Se, - CH 2 . or NH, Ris analkyl group and the fused benzene nuclei may also be substituted or fused with other benzene rings. The layer may comprise a binder e.g. gelatine, cellulose and ethyl hydroxy ethyl cellulose, polystyrene, and polyvinyl-chloride, -acetate or -alcohol or copolymers thereof, and be coated on a support.
Patent GB-236731-A (GB)
Title: Dust allayer
IPC: C09K3/22
Filed: 1924-07-15
Abstract: Dust-laying compositions are prepared by mixing up to 5 per cent of cresols, preferably commercial cresylic acid, with a mineral oil of specific gravity 0.89 at 60 DEG  F., close flash point 350 DEG  F., and Redwood viscosity of 182 secs. at 70 DEG  F. and 50 secs. at 140 DEG  F.
Patent GB-240579-A (GB)
Title: Improvements in or relating to temporary binders or loose sheet holders
IPC: B42F13/04
Filed: 1924-07-15
Abstract: 240,579. Petty, J. P., and Petty &. Sons (Reading), Ltd. July 15, 1924. Flexible-band files; covers; clamping-devices.- Loose-leaf binders employing clamping-bars, of the kind set forth in Specification 240,580 adapted to receive binding-thongs and winding chains having sprocket drives therefor, are provided with mechanism for engaging with the teeth of the winding-sprockets so as to lock the clamping-bars in adjusted position. Mounted in one clamping-bar b are a winding-spindle h, a locking-spindle i, and a hinge pin r, the spindle h being provided with sprockets g over which pass chains d secured to the other clamping-bar c. Notches k, k<1> in the spindle i allow rotation of the winding-spindle until the locking-spindle is rotated to bring the reduced portions i<1>, i<2> into the position shown in dotted lines in Fig. 4. Endwise movement of the locking-spindle is prevented by the engagement of the sides of the sprockets with the notches in which they are housed formed in the clamping-bars. In a modification, the notches k, k<1> are formed in helical grooves cut in the spindle, a guide block acting as a part nut being carried by the clamping-bar. Squared ends are formed on the spindles h, i for engagement by winding keys.
Patent GB-1371426-A (GB)
Title: Automatic gain control in radio navigation systems
IPC: G01S13/78
Filed: 1972-04-13
Abstract: 1371426 Radio navigation INTERNATIONAL STANDARD ELECTRIC CORP 13 April 1972 [20 April 1971] 17059/72 Heading H4D A known airborne TACAN apparatus incorporates automatic gain control (A.G.C.) of receiving I.F. amplifier 6, the A.G.C. voltage being derived by an integrator 15 (of time constant T 0  about one second) the input to which is taken from an AND gate 15 supplied from a circuit 14 which introduces a delay such that the second pulse of a responding pulse pair overlaps the pulse produced by a monostable 12. If a high amplitude signal is received, amplifier 6 saturates and the receiver may remain blocked at high gain and no further pulse pair can be decoded. According to the invention the blocking is alleviated by adding a circuit between the points a, b. Said circuit (in the embodiment) consists of a circuit 17 which delivers a logic level "1" when its input is a D.C. voltage close to E or otherwise a logic level "0" ; a NOT gate 18; a multivibrator 19 delivering a logic level "1" every T 2  seconds, where T 2  is approximately equal to T 0 ; an AND gate 20; and an OR gate 21. When a distorted output (due to amplifier 6 saturation) issues from decoder 9, 10, 12 cannot operate correctly and no pulse is produced at the output of mono-stable 12 thereby blocking the receiver. After a time logic level "0" issues from circuit 17 thus producing an A.G.C. voltage proportional to the amplitude of the output of detector 7 whereby the gain of amplifier 6 is reduced and the receiver unblocked. Circuit 17 may comprise an operational amplifier (22, Fig. 2, not shown) with a negative feedback circuit of a specified time constant, followed by an inverter (26).
Patent GB-723424-A (GB)
Title: Improvements in milking machine pulsators
IPC: A01J5/10
Filed: 1951-07-18
Abstract: 723,424. Pulsators. HARKEY, M. R. E. Oct. 20, 1952. [July ]8, 1951] No. 17110/51. Class 84. A pulsator for a milking-machine, of the type employing pistons sliding freely in a cylinder and moving over ports in the wall of the cylinder, is characterised in that the cylinder wall is a separate liner rigidly located within the outer body of the pulsator. The ports U in the liner may be long circumferentially and short axially and may have a number of strips D integral with the liner and extended across the ports to enable the piston to pass smoothly over them. The piston assembly is accessible through detachable pulsator ends E which bear adjustable screws A serving to limit the stroke of the piston assembly M, and also to give accessibility to passages 8, 9 and 12 by the continued bores F. Air enters the pulsator through a filter H and the vacuum connection is made at V. Restrictions K in the transfer ports 8, 9 and needle valve C control the pulsation rate. The teat-cup connections P, Q may have sight glasses T, T<SP>1</SP>, to indicate ingress of milk or water to the pulsator.
Patent GB-297664-A (GB)
Title: A cover for the mouthpieces of telephones
IPC: H04M1/19
Filed: 1928-06-13
Abstract: 297,664. Howes, R. H. June 13, 1928, Mouthpieces and attachments. - A device adapted to be removably fitted over a telephone mouthpiece so as to prevent, when desired, a person at the other end of the line from hearing what is being said near the telephone, comprises a plate part 1 with a flange 2 having a gap 3 at one side to enable the device to be slipped edgewise into position over the mouthpiece a, the part 1 and flange 2 being made in one integral piece of india-rubber. The inner face 4 of the flange is undercut and a hole 5 is provided for the attachment of a tape, chain &c. by which the device may be secured to the telephone pillar or to which a pencil &c. can be attached. The outer side of the part 1 may carry advertisements, an almanac or a pad on which notes can be made.