baber/WOPTO huggingface dataset:
Patent GB-679889-A (GB)
Title: Improvements relating to beam compasses
IPC: B43L9/04
Filed: 1950-07-17
Abstract: 679,889. Curve - describing instruments. HARLING, Ltd., W. H., BERG, A. H., and BEAVEN, H. K. Jan. 19, 1951 [July 17, 1950], No. 17859/60. Class 97 (iii). In a beam compass wherein the or each movable beam head is held frictionally in adjusted position on the lath, the head being itself of resilient construction, each head comprises a U-shaped body, the vertical side cheeks 4, 5, Fig. 2, of which press frictional surfaces 13, 14 against co-operating surfaces on the lath. The frictional surfaces consist of frusto-conical rollers 13, 14, which are pressed against the upper edges of the equilateral triangular sectioned lath 1, each roller rotating on a tubular pin 15 secured by a screw 16 to the adjacent cheek with a phosphor bronze washer 19 interposed. The base of the lath 1 is a precision fit within the cheeks 4, 5 and rests upon a friction pad 7 which overlies one or more strips of sheet metal 8, the parts 7, 8 being secured to the base 6 of the head by a screwed spigot 9 integral with a portion 10 of the mounting for the point or the like, screwing into a tapped socket 11 countersunk into the pad. The portion 21 of the mounting for the interchangeable point is pivoted to portion 10 by a pin 22. Two movable heads may be provided or in a modification, which may be considerably smaller than normal beam compasses, the mounting for the centre point, Fig. 6, may be fixed to the lath. A rigid leg has a tapped hole 24 at its upper end to receive a screw-threaded spigot 25 projecting from a knurled handle 26, the spigot extending through a hole 27 in the crown of the lath and a tapped hole 28 in the base thereof, a V-shaped ferrule 29 being interposed between the base of the handle and the crown of the lath. The mounting for the ink point may be mounted nearer one end of the movable head than the other to increase the range of the instrument.
Patent GB-120725-A (GB)
Title: Improvements in Reversible Motor Tractors.
Inventor: LAPPARENT PIERRE DE
IPC: B62D49/06
Filed: 1918-11-01
Abstract: 120,725. Lapparent, P. de. Aug. 29, 1916, [Convention date]. Steering-gear.-A two-way agricultural tractor comprises a driving-wheel at one side of the frame and a pair of alined steering-wheels at the other. The steering-wheels are mounted in forks having arms 7, 8 connected by adjustable rods 9 and are operated either from a side or rear hand-wheel.
Patent GB-983139-A (GB)
Title: An improved seal for use between relatively rotatable elements
IPC: F16J15/54
Filed: 1960-05-20
Abstract: 983,139. Seals; bearings. G. BLAIR. Aug. 18, 1961 [May 20, 1960; Aug. 12, 1960], Nos. 17905/60 and 28030/60. Headings F2A and F2B. An annular gap between relatively rotatable elements, such as an axle 4 and the end cover 2 of a railway axle box 3, Fig. 1, is sealed, to prevent escape of lubricant, by a resilient ring supported by a non-rotatable carrierplate 8 and having a cellular, slitted, pitted or equivalent by interrupted surface layer, e.g. at its inner periphery, which engages with that one or each of the elements which is movable with respect to the ring. The interrupted surface of the ring 7 serves to retain lubricant so as to reduce friction between the ring and the shaft and may be grooved or slotted to facilitate entry and distribution of the lubricant. The ring may be of plastic or rubber, e.g. neoprene, and is secured by pins 9 to the carrier-plate 8 which is transversely floating and abuts an obliquely surfaced annular lip 11 within the end cover 2 so that a small portion 12 of the inner periphery of the ring is exposed as a lip to catch lubricant. The ring is surrounded by an annular tension spring 10. A wick 20 located in a gap at the lower end of the ring dips into lubricant in a cup 22 formed in the axle box 3. The plate 8, which is substantially square, is urged against the lip 11 by springs 18, Fig. 2, located in recesses in the interior of the axle box. A pair of buffer springs 19 secured to the plate 8 bear against the inner surface of the cover 2. In a modification, Fig. 4, the sealing ring 23 is slidably held between two rectangular plates 24, 25 supported by part-annular surfaces of four spacers 27 located between the corner portions of the plates. The seal assembly is constrained against rotation by a lug engaging a gap in one of the plates. The contact pressure between a surface of the seal ring and the corresponding surface of a rotatable element may also be wholly or partly controlled by a shoulder or a support member for the ring or by internal stiffening of the ring.
Patent GB-753320-A (GB)
Title: Improvements in or relating to chain link fencing
IPC: B29C67/00
Filed: 1953-06-29
Abstract: Chain link fencing is woven from rods, filaments or tubes of a polymer or copolymer of vinyl chloride or vinyl acetate or from a metal wire covered with such polymers.ALSO:Chain link fencing is woven from rods, filaments or tubes of a polymer or copolymer of vinyl chloride or vinyl acetate, or from a metal wire covered with such polymers.
Patent GB-901670-A (GB)
Title: Improvements in or relating to electrical installations for refrigerated motor vehicles
IPC: B60H1/00
Filed: 1960-05-20
Abstract: 901,670. Control of A.C. motors. MARCHIORELLO, G. May 20, 1960 [Oct. 12, 1959], No. 17960/60. Class 38 (3). A refrigerating installation in a refrigerated motor vehicle comprises a compressor driven by an electric motor M and a three-phase generator G driven by the engine P of the vehicle, the generator G being connected to the motor M and being provided with two separate field windings E, Es connectable to the vehicle battery B by switches N, S respectively, the field winding E only being excited when the motor is running normally, but when the motor requires additional energy at starting the field winding Es is also excited to boost the output of the generator G. A switch Ls is supplied whereby the motor M can be connected either to the generator G or an alternative supply K. An overload device D is provided and the motor M has an associated stardelta switch O. A reversing switch I is provided to ensure the correct rotation of the motor M when connected to the alternative supply K.
Patent GB-596017-A (GB)
Title: Improvements in or relating to a work holder for a gear testing machine
IPC: G01B5/20
Filed: 1945-07-13
Abstract: 596,017. Testing gears. KODAK, Ltd. July 13, 1945, No. 17972. Convention date, July 13, 1944. [Class 106 (ii)] A work holder adapted to be mounted on a gear-testing machine comprises a supporting block formed externally with a pad having a predetermined relationship to the pitch circle of a gear to be tested, the gear being adapted to be rotatably mounted in a recess or slot having a depth less than the diameter of the gear so that a segment of the gear projects beyond the block adjacent to the pad. As shown in Fig. 1, the gear W to be tested is rotatably mounted on a trunnion 12, one end of which is secured in the supporting block 1 which has a pad 2 to define the pitch circle of the gear. A cylindrical extension of the block 1 passes through an arm 5 of the gear-testing machine and is secured therein by a nut 7, the block being orientated by means of a shoulder 9 which engages a complementary shoulder on the arm 5. A block 14, provided with a handle 15 and a recess for the outer end of the trunnion 12, is carried by a rod 16 and is urged inwardly by a spring 20 within the cylindrical extension of the block 1. In order to change the gear W, the block 14 is moved outwardly and may be retained in the outward position by rotating it so that it rests on shoulders (not shown) formed on the block 1. In a modification (Figs. 4 and 5), the gear W<1> is retained in a block 35, provided with a cylindrical pitch circle pad 36, by means of a removable pin having a tapered section 31. Specifications 577,217, 577,218 and 596,016 are referred to.
Patent GB-670736-A (GB)
Title: Improvements in or relating to internal combustion turbine power plants
Inventor: SAMMONS HERBERT
IPC: F02C7/00
Filed: 1949-07-07
Abstract: 670,736. Jet propulsion plant. NAPIER & SON, Ltd., D. June 29, 1950 [July 7, 1949], No. 17980/49. Class 110(iii) [Also in Groups XXIV and XXXIII] A turbo-jet comprises three independently operable I.C. turbine assemblies B, C, D which are arranged with their axes on the apices of an isosceles triangle, preferably one having the base larger than the sides, and each assembly comprises a rotary air compressor which receives air direct from the atmosphere through an inlet passage, a turbine which is co-axial with the compressor and one or more combustion chambers therebetween. The assemblies may have a common nozzle, separate nozzles or a nozzle which is subdivided by partitions and one or more exhaust reheaters may be used therein. Each compressor has a separate inlet or, as shown, an inlet which is divided into two passages E<SP>1</SP>, E<SP>2</SP> which merge into three inlets. Auxiliaries positioned in the space bounded by the assemblies, are driven through a differential gearing (see Group XXIV). A cockpit is arranged in the space F bounded by the passages E<SP>1</SP>, E<SP>2</SP>. Specification 593,403 is referred to.
Patent GB-599449-A (GB)
Title: Improvements in or relating to the hot working of metals
IPC: B21B45/02
Filed: 1945-07-13
Abstract: A lubricant for use in operations involving the plastic deformation of hot metals comprises a sol or a gel of silica or alumina.  A silica gel may be produced by treating a solution of sodium silicate with hydrochloric acid.
Patent GB-778885-A (GB)
Title: An improved reflector
Inventor: FINK JAN
IPC: B62M3/12
Filed: 1955-06-23
Abstract: 778,885. Reflex reflectors. FINK PRODUCTIONS, Ltd. June 23, 1955, No. 18156/55. Class 3 (2). A reflector for attachment to a cycle pedal 24, glove or rucksack comprises a reflex reflector 11 of transparent plastic material which is wedged into an opening 20 formed in a sheet metal frame 10 shaped as shown, The frame is provided with ears 16 locating holes 22 and an apertured channel 15 having bowed edges 21, see Fig. 2 (not shown). In a modification Fig. 4 and 6 (not shown), the ears are bent and slotted for attachment to a cycle pedal.
Patent GB-154878-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H01R39/08
Filed: 1920-07-02
Abstract: 154,878. L÷cknitzer Eisenwerk Ges. Dec. 2, 1919, [Convention date]. Collecti7ig - rings. - The slip-rings 7, 8, 9 of a dynamo machine are secured on the sleeve 3 by forming their hubs 10, 11, 12 so as to engage one under the other, the last one 10 engaging beneath an undercut ring 4 on the sleeve and the whole being held tight by an end ring 14 which engages under the hub of the first slip-ring 9. Insulation 13, 6 is placed between the hubs and the sleeve. The current is led to the rings through shanks 15 screwed into the arms of successive rings and passing freely through holes in the other arms. The cross-section of the hubs may be a parallelogram, as shown, or any other figure giving an undercut effect.
Patent GB-725488-A (GB)
Title: Improvements in dispensing apparatus
IPC: B67C3/28
Filed: 1953-07-01
Abstract: 725,488. Delivering measured quantities of liquids. KELLER & ROMER GES. July 1, 1953 [Oct. 2, 1952], No. 18290/53. Class 106(5). Apparatus for dispensing measured quantities of liquids comprises several measuring vessels a rotated by toothed gearing g, h in relation to a disc i provided with ports which place the vessels in communication with a reservoir x under pressure, an overflow passage and a vessel to be filled. The vessels are held between a base member c and a cover d, fitted with packings f, by a screw e and are each provided with a transversely and longitudinally extending bore b. When the vessel is in filling position over a port o, the bore b communicates through ports in the disc i with the following vessel, which thus receives excess liquid, the bore b of the following vessel being connected to a bore z for regulating the air escape. At the discharge position, the vessel traverses a port n and has its bore b in communication with a bore y connected to a source of compressed air or carbon dioxide. The disc i which is preferably of leather, is fixed in a stationary moulded member k connected through a further fixed disc t with a rotating filling head u.
Patent GB-934921-A (GB)
Title: Improvements in or relating to apparatus for inking rotary type drums
Inventor: EISEFELDT ERICH
IPC: B41J27/12
Filed: 1962-05-12
Abstract: 934,921. Typewriters. SIEMENS & HALSKE A.G. May 12, 1962, No. 18320/62. Class 100 (4). A type roller 1 drives frictionally an intermediate roller 2, which drives frictionally a felt or ultramide ink supply roller 3, ink being supplied from the roller 3 to the roller 1 through the roller 2. The speed of the roller 3 is reduced by a brake comprising a spring steel band engaging a brake drum 3a and attached to an adjusting screw 6 through a spring 7. The roller 3 is mounted on a shaft 8 pivoted to a shaft 9 and urged towards the roller 2 by springs 10.
Patent GB-636491-A (GB)
Title: Improvements in or relating to blasting-explosive charges
IPC: F42B3/00
Filed: 1947-07-11
Abstract: 636,491. Blasting cartridges. ATLAS POWDER CO. July 11, 1947, No. 18460. Convention date, April 20, 1944. [Class 9 (i)] A blasting-cartridge comprises a paper tube 11 lined with a flame - suppressing composition 13 incorporating expanded perlite, the composition surrounding a paper-covered explosive charge 21. The ends of the cartridge are closed by wads 15, 17. The paper tube, 1¥ inches in diameter and 8¢ inches long, is placed over a mandrel, diameter 1<SP>5</SP>/ 16  inches, and the composition is then packed between the tube and the mandrel. The mandrel is then removed, the sheath thus formed is then dried at 65 C., the charge placed in position and the end wads secured to the cartridge. The flame-suppressing ingredient of the composition may be sodium bicarbonate, sodium chloride or borax. Magnesium sulphate or short-fibred asbestos may be incorporated as a binding agent.
Patent GB-648445-A (GB)
Title: Improvements in electrical protective systems
IPC: H02H3/28
Filed: 1949-07-13
Abstract: 648,445. Protective cut-out arrangements. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. July 13, 1949, No. 18527. Convention date, July 30, 1948. [Class 38(v)] In a differential protective system for a section such as a feeder, bus-bar, generator, or other machine, a relay 24 having a highimpedance operating circuit is connected in parallel with the secondary windings 17- 21 of current transformers in the conductors connected to the section, so as to prevent operation on an external fault and to protect the relay against excessive voltages during internal faults. As shown, the secondaries 17-21 are connected in parallel to points 22, 23, to which the high impedance coil 24a of relay 24 is connected, through a rectifier bridge 37 and a tuned circuit 35, 36, so as to block d.c. and harmonic components. In addition, a voltagelimiting device 38, such as a ceramic, a glow tube, or a spark gap, having a negative resistance-voltage characteristic is connected to points 22, 23. On external faults, any voltage at points 22, 23 due to current transformer saturation is insufficient to energize coil 24a, but on an internal fault, e.g. at X, the coil is energized to close its contact 25, thereby energizing the trip coil 26 of a hand-reset switch 27, having contacts in the respective trip coil circuits. Operation of switch 27 also causes a contact 34 to change over and short-circuit the operating circuit of relay 24. In a modification, Fig. 2, (not shown), the relay coil 24a is connected directly in series with device 38 across the points 22, 23, and the arrangements of Figs. 1 and 2 may be combined, Fig. 3, (not shown).
Patent GB-363674-A (GB)
Title: Improvements in or relating to methods of averaging shredded tobacco
IPC: A24C5/39
Filed: 1930-06-17
Abstract: A method of averaging shredded tobacco, for instance in feeding tobacco to the rod-forming mechanism of cigarette-making machines, comprises the step of subjecting a stream of tobacco to a projecting operation at such a speed (insufficient to effect winnowing) that shreds of different length, thickness, weight, &c. travel along different trajectories such that all the shreds are deposited upon a cylindrical tobacco-receiving surface in a direction approximately tangential thereto, producing a "carpet" of tobacco having a density more uniform than that of the original stream.  The tobacco may be subject to a series of such operations and the length or thickness of unit mass of the tobacco "carpet" may be varied from stage to stage, the width of the stream remaining substantially constant.  The apparatus employed is described in Specification 322,821, [Class 130, Tobacco].
Patent GB-585920-A (GB)
Title: Improvements in power plant comprising internal-combustion-operated motive-gas generators of the free-piston type
IPC: F02C5/06
Filed: 1943-11-08
Abstract: 585,920. Gas turbine plant. MUNTZ & CO., Ltd., A., BEALE, E. S. L., and BAYNES, L. E. Nov. 8, 1943, No. 18550. [Class 110 (iii)] [Also in Groups XXVII and XXXIII] A battery of two or more internal-combustion gas generators of free piston type, particularly adapted to constitute a power unit for driving aircraft, has the generators disposed with their longitudinal axes parallel and rigidly connected together by pipes which put the scavenge air casings of the generators into communication with each other. 'As shown, four compressionignition, two-stroke generators 10 are arranged round a central axis. Each generator casing is provided at each end with a pair of flanged connections 32 disposed at 90‹ so that the' generators may be bolted together with the casings in communication, thus minimising fluctuations in scavenging air pressure. The operating cycles of the generators may be phased in the manner described in Specifications 561,536 and 580,362. A ring frame 39 surrounds an air duct 37 connected to casings 35 enclosing the compressor cylinders, the duct being supplied with air from a supercharger G. The radial exhaust connections of the generators are connected by longitudinal pipes 40 to an annular manifold - combustion chamber B. Looped balance pipes 41 connect adjacent gas delivery pipes to ensure that if one generator accidentally stops hot gas will flow to the delivery pipe of this generator to minimise temperature stresses. The power unit includes an auxiliary take-off turbine C, high-pressure turbine 'D, both connectible through epicyclic reduction gear E to the airscrew, and a low-pressure turbine F driven from the exhaust from turbine D and driving the blower G. The manifold is provided with liquid fuel burners, an electrically heated igniter being provided for initial combustion. When the manifold thus acts as a combustion chamber, the take-off turbine C is brought into action and is coupled to the high pressure turbine D by a clutch 47 to give increased power for taking off. Radiators for oil and cylinder coolant are housed in a duct 57. The turbine assembly is supported on tubular beams 42, 43, which are connected to engine bearers which are anchored to the air-frame.
Patent GB-498139-A (GB)
Title: Improvements in or relating to filtering devices
Filed: 1937-07-03
Abstract: 498,139. Filters. SQUIRE, A. E., and ANGEL & CO., Ltd., H. R. July 3, 1937, Nos. 18561 and 26260. [Class 46] A container housing an upwardly-extending filtering material 21 is in two parts, the part 2 being shaped to the contour of the filtering material and spaced a relatively short distance therefrom, and the part 1, which receives the material to be filtered, being of large volume compared to the volume of the space between the filtering material 21 and the inner surface of the part 2. The filtering material 21 consists of filter paper surrounding a perforated support 7 and clamped between the part 2 and a funnel member 4. A pipe 20 extending into the outlet of the funnel 4 may be provided to create suction within the filter as the filtrate discharges. The lower part of the container may be placed on one floor of a building and the upper part placed on the floor above, the two parts being connected by a pipe. Specification 487,333 is referred to. The first Provisional Specification describes an arrangement in which the container housing the conical filter is of cylindrical form.
Patent GB-185742-A (GB)
Abstract: 185,742. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of McNeill, R. W., and Shaw. G. R.). Sept. 12, 1921, [Convention date]. Drawings to Specification. Scoop-arm machines.-Relates to the control of direct-current motors for performing hoisting and other operations in electrically driven powershovels. One or more motors driving a hoisting drum which raises and lowers the shovel, are fed from a generator having a separately-excited field-winding and a differential series fieldwinding. The direction, speed, and braking functions of the motors are controlled bv varying and reversing the current in the separately excited field of the generator. Throughout the operations, the generator armature remains connected in a closed circuit with the two motor armatures in series. The generator forms one element of a motor-generator set, which, together with the motors and the exciter, is situated in the cab of the power-shovel. Regenerative braking is obtained either by weakening the generator field with the controller on the reverse side, or by allowing the load to overhaul the motor with the controller in the off position. Characteristic curves are given to show the different stages of control. The motors for performing swivelling and thrusting operations are controlled similarly to the hoisting motors.
Patent GB-677340-A (GB)
Title: Improvements in revolving sewage distributors
IPC: C02F3/04
Filed: 1949-07-14
Abstract: 677,340. Spray-producers &c. WALSH, W., and TUKE & BELL, Ltd. Oct. 9, 1950 [July 14, 1949], No. 18610/49. Class 69 (iii) A rotary sewage distributer of the type comprising a revolving circular sewage container 5 supporting a number of distributing arms 13, is driven by the sewage acting on one or more water wheels 16, 17 housed within the container and rotating on radially disposed spindles 19, and means are provided for transmitting the drive from the wheels to a circular driving rail 23 concentrically disposed within the container. The spindles 19 are hinged on pins 20 on a fixed column 4, and the outer end of each wheel hub 18 carries a roller 18a which grips or meshes with the rail 23. The container is carried within a frame 12a which rotates on bearings about the column. The sewage is fed upwardly through the column and through orifices 4b to troughs 14, 15 which have oppositely arranged outlets directing the sewage to vanes providing deep pockets in the wheels, and the wheels are rotated in opposite directions. The sewage passes through orifices 5a to the distributing arms 13. A ratchet device may be provided so that when the sewage flow diminishes the distributer may continue to revolve under its own momentum without driving the water wheel or wheels. Alternatively, the sewage may be fed through an overhead feed pipe.
Patent GB-1262293-A (GB)
Title: Improvements in or relating to laser systems
Inventor: BRADFORD WILLIAM ROBERT
IPC: H01S3/083
Filed: 1968-04-20
Abstract: 1,262,293. Lasers. EMI Ltd. 21 April, 1969 [20 April, 1968], No. 18762/68. Heading H1C. In a ring laser, back scatter of the circulated light is reduced by prismatic corner reflectors 4, 5, 6 formed with their incident faces 12, 14 at the Brewster angle. Each side of the ring laser consists of a laser discharge tube 1, 2, 3 which is sealed to the incident faces of the adjacent corner prisms. Circulated light is extracted by a frustrated total internal reflection arrangement using a further optical surface positioned in near contact with the total internal reflection base 7 of one of the prisms. In operation the laser action is preferably maintained at a level just sufficient to generate and maintain the circulation of light plane polarized by the Brewster angle incident surfaces.