baber/WOPTO huggingface dataset:
Patent GB-608331-A (GB)
Title: Improvements in or relating to apparatus for locating leaks in pipe lines, fluid-filled electric cables and the like
IPC: G01M3/28
Filed: 1946-02-20
Abstract: 608,331. Locating leaks in pipes. GENERAL ELECTRIC CO., Ltd., and DAUNCEY, L. A. Feb. 20, 1946, No. 5299. [Class 99 (ii)] A leak in a pipe line or fluid-filled electric cable is located by isolating a faulty section, filling the section with a fluid A at a given pressure, supplying a fluid B to one end of the section at a measured rate to maintain said pressure, the fluids A and B having different rates of discharge at a given pressure, and determining the position of the leak by a calculation based on the quantity of fluid B supplied before a change takes place in its rate of supply. Hydrogen is supplied as fluid B to a cable normally filled with nitrogen. Branches 6, 7 supply hydrogen and nitrogen alternatively through a filter and gas-drier 16, reducing valve 18, gauges 17, 19 and a flowmeter 20. The meter may be byepassed, and valves 22, 24 are provided so that the apparatus may be filled with hydrogen before beginning the timed supply thereof. A check test may be made from the other end of the section.
Patent GB-1341354-A (GB)
Title: Pilot axle arrangement for a railway vehicle truck
IPC: B61F5/48
Filed: 1972-02-04
Abstract: 1341354 Railway vehicle undercarriages MLW-WORTHINGTON Ltd 4 Feb 1972 [11 Feb 1971] 5313/72 Heading B7L In a railway vehicle truck 10 having a frame 11 carrying driven wheelsets 12 and a non- powered front pilot axle assembly 13, the assembly 13 comprises a non-powered axle 18 with wheels 20 supported by an axle housing 15 which is connected to the frame by precompressed resilient means formed by elastomer blocks 30a, 30b, 30c and 30d permitting movement of the axle housing 15 relative to the frame vertically and in an arcuate path 60 in a horizontal plane. Elastomer blocks 30a and 30b extend between vertical front faces 25, 26 of the axle housing 15 and the inner face 34 of the front end 14 of the truck frame 11. Elastomer blocks 30c and 30d extend between parallel pairs of faces of housing 15 and frame 11 and are inclined so that their central longitudinal axes 32 intersect on the longitudinal vertical central plane 16 of frame 11. The elastomer blocks preferably comprise alternate metal plates and elastomer elements. Precompressed vertical helical springs 50, 51 and 52 extend between the top surface 22 of the housing and the frame. A centering device 55 holds the pilot axle 18 centred until a predetermined flange force at the wheels 20 is exceeded, and assists the elastomer blocks and springs 50, 51 and 52 in exerting a restoring force once displacement of the pilot axle 18 has taken place.
Patent GB-438766-A (GB)
Title: Improvements in or relating to vehicle windows
IPC: B60J1/17
Filed: 1935-02-19
Abstract: 438,766. Vehicle windows. AUTOMOBILE VENTILATION, Inc., 2559, Union Guardian Building, Detroit, Michigan, U.S.A.- (Assignees of Crowell, W. D.; 1620, Chemical Building, St. Louis, Missouri, U.S.A.) Feb. 19, 1935, No. 5336. Convention date, March 31, 1934. [Class 20 (iii)] A vertically sliding vehicle window is adapted to provide a continuously increas ing ventilation open ing at its front edge when adjusted vertically. The sash and frame may be formed with convex and concave contours by which a crescent-shaped opening of increasing size is formed during vertical movement, extending along part of the front edge and top of the window.
Patent GB-368951-A (GB)
Title: Improvements in apparatus for the elimination of undesirable harmonics in electricalgenerating, transmission and distribution systems
IPC: H02J3/18
Filed: 1931-02-20
Abstract: 368,951. Supply systems ; phase changing; modifying wave form. HIGHFIELD, J. S. and HIGHFIELD, W. E., 36, Victoria Street, London. Feb. 20, 1931, No. 5432. [Classes 38 (ii) and 38 (iv).] Controlling frequency by auxiliary machines; systems depending on static transformers.-In a distribution system embodying transformers distortion of the e.m.f. wave form is prevented by supplying the magnetizing current from an over-excited multiphase synchronous motor connected to the mains through a phasemultiplying transformer. A generator A, as shown in the Figure, supplies three-phase busbars B from which high voltage distribution lines C are supplied through a step-up transformer T<1>, T2. A step-down transformer supplies a load E such as an A.C. motor. To prevent distortion of the e.m.f. wave form; which would cause undesirable harmonics to be supplied to the transmission line C, a twelvephase synchronous motor F, R is supplied from a transformer P<1>, P<2>. This transformer comprises a core with three legs on which are mounted the mesh-connected primary windings. The secondary is composed of twelve coils mounted four on each leg. The three in the first row are connected in delta, those in the second row in star, those in the third row in inverted delta, and those in the fourth row in inverted star. These connections give a twelvephase output.
Patent GB-745292-A (GB)
Title: Improvements in bevel gear generating machines
Inventor: DEAKIN THOMAS MEYRICK
IPC: B23F5/06
Filed: 1953-02-26
Abstract: 745,292. Gauging toothed gears. DEAKIN GEARS, Ltd. Feb. 25, 1954 [Feb. 26, 1953], No. 5442/53. Addition to 718,101. Class 106 (2). [Also in Groups XXII and XXIII] An improvement in or modification of the bevel gear generating machine as claimed in the parent Specification comprises two forming or measuring tools 2, 2<SP>1</SP> which are alternatively engageable with different tooth flanks and are mounted on assemblies 175, 175<SP>1</SP>, each pivoted on a common tool carriage 50 about its own axis 173, 173<SP>1</SP> lying in the generating plane 3-3 and parallel to the generatrix of the tool profile, and means for displacing the carriage laterally by a distance equal to the distance apart of the axes (d). For generating spherical involute profiles on a tooth 9 the face of each grinding wheel is set vertical. For octoid forms, the brackets 175, 175<SP>1</SP> are set over. Movement of the tool carriage 50 through the distance d may be imparted by the cam 31 which is used, as in the parent case, when crowning teeth. The cam 31 then has two separate lifts or the follower arm 32 is made adjustable in length. The cam 31 is connected to the tool carriage 50 by the arm 32, a crank 33, bands 36, and a slide 37 on which the carriage may be adjusted by a screw 52. Each tool is mounted on a slide 40, 40<SP>1</SP> which is reciprocated by a crank driven by a motor 189, 1891 carried by the slide. Each tool is moved to or from the work by hydraulic means 184, 185 controlled by a master cylinder 186 as in the parent Specification. In a modification, movement of the carriage 50 through the distance d is effected by relative displacement between the carriage and a control slide 51, Fig. 4, connected to the cam 31 by a band assembly 57 and a slide 37a. The carriage 50 on a yoke 58 is moved by hydraulic means 60, 60<SP>1</SP>, 61 into one of two positions determined by the engagement of lugs 59, 59<SP>1</SP> with blocks, such as 631, on an abutment 62. To set over the carriage 50 for offset gears, it is adjusted on the yoke 58 by a screw 53 into positions determined by blocks 64, 65. Means are provided to ensure the correct phasing of the feed and tip and root relief cams 27, 28 when changing over from one flank to another.
Patent GB-594676-A (GB)
Title: Improvements in or relating to hand grip devices
IPC: A47J45/08
Filed: 1945-03-05
Abstract: 594,676. Hand-grips for hardware. STADIUM, Ltd., and BLACKWELL, T. E. March 5, 1945, No. 5497. [Class 66] [Also in Group XXIII] A hand-grip is formed in two parts 1 and 3 which fit one on each side of a metal handle 6 so that the lateral edges of the parts partially lap in a sliding manner to accommodate, in a close fit, sections of a metal handle of different thickness without uncovering the lateral edges thereof. The two parts may be of moulded plastic material and may have recesses 7 for the fingers.
Patent GB-143651-A (GB)
Title: Improvements relating to acid-proof and oil-proof containers
IPC: B65D85/84
Filed: 1919-03-05
Abstract: 143,651. Jones, T. W. March 5, 1919. Tanks.-Tanks and cardboard containers, floors, &c. are rendered acid and oilproof by coating them with a layer of fire-proof cement, such as Keene's cement or other hard finish plaster, allowing the coating to dry and set, washing the surface of the coating with refined petroleum, and covering it with a solution of shellac in rectified or methylated spirit, with or without colouring-matter. The cement, reinforced or otherwise, may itself form the wall of the tank &c.
Patent GB-850362-A (GB)
Title: Manufacture of combustible gas
Inventor: WILLIAMS NORMAN HENRY
IPC: C01B3/46
Filed: 1956-02-22
Abstract: 850,362. Combustible gas. HUMPHREYS & GLASGOW Ltd. Jan. 22, 1957 [Feb. 22, 1956], No. 5512/56. Class 55 (2). In a cyclic process for producing a combustible gas by reacting a vaporized liquid hydrocarbon with steam in the presence of a catalyst and wherein the liquid hydrocarbon is vaporized in a chamber 4 before entering the catalytic zone 2, during a plant heating phase air added at 10 and preheated in a regenerator 1 and hot combustion gases from a combustion chamber 6 are passed through the catalyst and extra air is added at 18 to these gases after they have passed through the catalyst, the air added at 18 being at a temperature, e.g. atmospheric temperature, substantially lower than the temperature of the gases to which it is added and in an amount such that carbon deposited in the vaporizing chamber 4 is burned off to the required extent. Some of the heated air and combustion gases from conbustion chamber 6 may at the beginning of a heating period by-pass the catalytic zone 2 and steam may be added at 17 to the gases entering the vaporizing chamber.
Patent GB-433267-A (GB)
Title: Improvements in brake riggings of the variable leverage type
IPC: B61H13/32
Filed: 1935-02-21
Abstract: 433,267. Brakes. SVENSKA AKTIEBOLAGET BROMSREGULATOR, 5, Adelgatan, Malm÷, Sweden. Feb. 21, 1935, No. 5591. Convention date, March 7, 1934. [Class 103 (i)] Brake transmission, especially for railways which can be set at different leverage ratios by the use of different tie rods is provided with means to produce in the transmission additional idle motion simultaneously with the setting of a lower leverage ratio to compensate for the difference in brake piston travel when braking at low and high leverage ratios. In one arrangement the brake rod leading from the dead lever to the brakes is in two parts one carrying a casing in which is contained a collar on the other part normally retained in fixed position by catches adapted to be released by the conical end of a sleeve sliding on the brake rod and operated by connections from the leverage changing device. A spring in the casing returns the collar to normal position. In a modification the nut 15 of a screw and nut type of slack adjuster 47, Fig. 4, forms the abutment which when released by catches 13 gives the additional idle motion. The catches 13 are operated by the conical end of a sleeve 16 operated by abutments 52, 53 on a sleeve 49 adapted to be moved axially by rotation of screw-thread 49 by rod 20. The nut 15 is splined to a sleeve 11 adapted to bo turned by the slack adjuster when taking up slack. In a further modification the additional idle motion is obtained by the release of a slack adjuster comprising split nuts 25, 26, Fig. 5, which are adapted to be displaced over the screw-thread on a rod 9a of the brake rigging to take up slack. In normal operation the pull of the brake lever 2a is transmitted through member 9b, spring 32, casing 28, nut 26 and rod 9a until spring 32 yields when the pull is transmitted through the nut 25. If slack has occurred an abutment 33 on the casing 28 strikes an abutment 29 on a rod 20, freeing the nut 26 which can then be moved along the rod 9<a> by the housing 28. When the brake is released a corresponding movement of the nut 25 takes place. This adjusting action can take place when the higher leverage ratio is in action, but when the lower leverage ration is in action a sleeve 34 is released by a pawl 40 and is forced by a spring 35 against the nut 26 which it maintains released from its seating on the casing 28, consequently also preventing nut 25 from coming into action and the rod 9a slides through the nuts giving the necessary idle motion to compensate for the difference in brake piston travel. The pawl 40 is operated by the rod 20 connected to the leverage changing mechanism and in the low leverage position the abutment 29 is turned to clear the abutment 33 and eventually strikes an ear 31 supporting the shaft 20 moving the casing 28, compressing the spring 32 and releasing the nut 25 into engagement with the casing 27 so that the braking effort is transmitted to the brakes after the desired idle motion.
Patent GB-327817-A (GB)
Title: A case for various articles particularly for a watch
IPC: G04B37/04
Filed: 1929-02-20
Abstract: 327,817. Bosch, F. Feb. 20, 1929. Lids; opening arrangements. - A case for a watch or similar article comprises a bottom tray b having sides c and an end piece d, and a hinged lid l to which the article a is attached. By the application of pressure in the direction A on an end piece e a lever k is rotated and the lid l is opened. The extent of opening is limited by stops m. The end piece e is formed integrally with a base plate a sliding under guides h and with a partition f acting against compression springs n. The springs are too weak to move the lid when in its open position but serve to return the end piece e to its initial position when closed. The article can be swung out about a hinge a' for winding, and is normally retained by a catch p and a button q. Specification 313,868 is referred to.
Patent GB-252469-A (GB)
Title: Improvements in means for adjusting electric condensers or the like
IPC: H03J1/14
Filed: 1925-03-03
Abstract: 252,469. Jemmison, J. W. March 3, 1925. Wireless tuning-apparatus, adjustment and indicating devices for.-Coarse-and-fine adjustment devices for the rotary spindles of electric condensers, variometers and the like comprise a gear d. Fig. 2, fast on the spindle a, to be adjusted, a gear e rotatable about the spindle a and having one less tooth than, or otherwise differing in its number of teeth from, the gear d, and a ring f rotatable about the spindle a and carrying a revolubly mounted pinion g meshing with the teeth of both gears d, e. A brake, such as a spring-urged block l in the fixed dial c acting against the hub e<1> of the gear e, prevents the gear e from rotating when the ring f is turned, the gear d and spindle a then being rotated slowly by the pinion g, but allows the gear e to turn with the gear d when the spindle a is directly rotated by a knob i. The knob i is held on the spindle a by a screw j and carries a pin k engaging a notch in the hub d<1> of the gear d. The spindle a carries a pointer b moving over the dial c. In a modification, Fig. 3, the gears d, e are replaced by discs d<2>, e<2> of different diameters and the pinion g by a roller having portions g<1>, g<2> of different diameters engaging the peripheries of the discs d<2>, e<2>, the friction edges of the parts d<2>, e<2>, g<1> g<2> being plain or knurled or grooved to receive a rubber or other friction band.
Patent GB-249102-A (GB)
Title: A drive for the inclined spindles by means of tapes, flat bands or belts, for continuous spinning or twisting machines
IPC: D01H1/241
Filed: 1926-03-02
Abstract: 249,102. Soc. Alsacienne de Constructions MÚcaniques. March 13, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Spindle driving apparatus. - Relates to the driving of inclined spindles in continuous spinning and twisting machines by means of tapes, flat bands, or belts. In the arrangement shown in Fig. 1, groups of four spindles 3 - - 6 are driven by a drum 1 or pulleys so arranged that the driving portion of the belt is perpendicular or approximately so to the axis of the spindle 3, the tension pulley 7 is movable about an axis perpendicular to the portion of the belt which runs therefrom to the spindle 3, the tension pulley 7 is movable belt is altered but slightly as the pulley 7 moves, and a directive pulley or drum 8 is applied so that the belt is perpendicular or approximately so to the axes of the spindles 5, 6. The pulley or drum 8 may be freely rotatable, or may be driven positively from the drum 1 or by a shaft arranged in the machine, and it may be arranged to act as a tension pulley. In the arrangement shown in Fig. 3, the spindles are arranged in quincunx order and the pulley 7 is inclined so that the spindles may be driven in either direction. Two' pulleys or drums may be used to direct the belt between the spindles 4, 5. The arrangement may be applied to any other grouping of spindles and to single-sided machines.
Patent GB-354169-A (GB)
Title: Improvements in and relating to endless conveyors
IPC: B66B21/04
Filed: 1930-02-21
Abstract: 354,169. Bucket elevators ; dredgers. GRANGES, L., 145, Rue du Faubourg St. - Denis, Paris. Feb. 21, 1930, No. 5869. [Class 68 (i).] An endless chain conveyer applicable to bucket elevators, dredgers and the like wherein long pitch chains are used and the driving and idle sides must undergo deflections to allow them to follow any desired path, comprises a chain structure having a pair of chains with ball - and - socket jointed links connected by axles having ball- and-socket joints with the chains so that the chain has sufficient flexibility to allow the runs to be laterally displaced with respect to one another. As adapted for a moving stairway, double link chains 9 have their links connected bv ball - and - socket joints 13, the chains being connected by shafts 16 having hall and - socket connections 17 with the chain joints. The shafts carry rollers 18 running on tracks 27 and are fitted with slidable sleeves 19. When assembling the parts the shafts pass through the restricted openings 25 of bearing sockets 24 in the step frames 1. The sleeves 19 are then pushed into the sockets and are laterally secured by a halfround distance sleeve 21 secured to the shaft. The jointed construction of the chains allows the drums 36, 37, Fig. 12, over which a vertical run of the chain passes to have non-parallel axes. A helical spindle 43 is arranged under the lower run of the chains and engages the rollers 28 on the ends of the trailer axles thus tilting the steps so that the rollers engage a track 41 curved round to the upward run. A compensating device for the chains comprises a pinion 46, Fig. 21, driving a chain 47 engaging a polygonal drum 48 on a shaft 34 also carrying a drum 35 for the main chain 49, the faces of the drums corresponding to a multiple of the pitch of the links of the respective chains. Pinions 52 fitted with balance weights and idler rollers 51 engage the driving chain 47 and keep the chain in tension. When there is a considerable difference in level between two landings the strain on the chains may be reduced by using one or more relays. Sprocket wheels on a carriage fitted with a counterpoise may be used, or an additional drive from a motor 87, Fig. 23, driving sprocket wheels 69 engaging the chains 49 and mounted on a carriage 75 running on a track 77 and fitted with a counterpoise 78 may be used. The drums may have built-up and adjustable teeth. The teeth 88, Fig. 24, fit slots in the drum and are secured by studs 90 in slots and screw studs 91. Wedges 92 and packing plates 97 are also provided.
Patent GB-850738-A (GB)
Title: Improvements in rotary regenerative heat exchangers
IPC: F28D19/04
Filed: 1957-02-21
Abstract: 850,738. Thermal regenerators. SVENSKA ROTOR MASKINER A.B. Feb. 21, 1957 (Feb. 27, 1956], No. 5869/57. Classes 64(1) and 64(2)  In a rotary matrix type thermal regener-- ator, the normal sealing gap provided between each of the two stationary end sealing plates and the rotor is automatically maintained by means of a thermally sensitive compensating device which interconnects the end plates. The sealing gap between the rotor and a circumferential sealing plate may be similarly maintained. The minimum sealing gap applicable under continuous operating conditions is set by manual adjustment and the arrangement is such that thereafter, owing to the compensating device, substantially no movement of the seals takes place due to temperature changes. Hence when the apparatus is shut down and the rotor contracts on cooling, theactual sealing gap tends to increase so that on restarting a sufficient gap always exists to allow for the normally rapid expansion of the rotor. Fig. 5 shows one form in which the compensating device interconnecting the opposed sealing end plates 18, 19 comprises telescoped members- 20, 21, 22 interconnected at their ends in the manner shown, the expanding member 21 being made of a material such as aluminium having a relatively high coefficient of thermal expansion and the other members 20, 22 being made of material having a relatively low coefficient of thermal expansion, e.g. "Invar" (Registered Trade Mark) steel. The upper sealing plate 18 is resiliently mounted and the initial manual adjustment of the sealing gap is made by means of nut 25. A further form is described (Fig. 6, not shown) utilizing two rods of different material, one of which is secured at one end to a circumferential sealing plate, itself directly attached to the lower end sealing plate. In Fig. 7, showing a circumferential seal, the thermally sensitive device comprises bimetallic washers of circular or rectangular shape which, placed under the adjusting nut, assume the cross-sectional form illustrated when hot and which distort on cooling so as to present a concave face to the stationary casing portion 52 thereby widening further the gap between circumferential sealing plate 53 and the surface of rotor 54. Arrangements are also described in which either the end or circumferential sealing plates serve as one of the members of the compensating device.
Patent GB-838959-A (GB)
Title: Improvements in the mounting of movable contacts on the armature of electromagnetic relays
IPC: H01H50/54
Filed: 1958-02-25
Abstract: 838,959. Electromagnetic switches; contactmembers for switches. BERNIER, R. Feb. 25, 1958 [Feb. 28, 1957], No. 5990/58. Class 38 (5). A contact-carrying insulating block 13 is supported on the armature 6 by a gudgeon pin 14 and located by a hole and projection 18. The block is assembled by passing the gudgeon pin through slightly larger apertures in the armature and block from beneath and forcing a spring 19 over the conical head 17. Alternatively, a cylindrical spring may be employed having its top coil tightened to lodge in an annular groove in the gudgeon pin.