baber/WOPTO huggingface dataset:
Patent GB-654237-A (GB)
Title: Improvements in or relating to high frequency electron discharge tube apparatus adapted to operate as amplifiers or frequency multipliers
IPC: F16F15/12
Filed: 1945-12-28
Abstract: 654,237. Valve amplifier, generator and multiplier circuits. SPERRY GYROSCOPE CO., Inc. Dec. 28, 1945, No. 35114. Convention date, Dec. 28, 1944. [Class 40 (vi)] [Also in Group XL (a)] "Transit time modulation" is effected in an apparatus comprising an electron-discharge tube having two regions A, B, Fig. 5, separated by an electron-permeable wall 13, means (such as cathode 15) for projecting an electron stream into the first region A, means (such as reflector 17) for producing a retarding field in A having a static component adapted to retard and reverse a component of the velocity of the electron stream whereby the stream is returned towards the wall 13 and passes through it into the second region B, means (such as transmission line 26, 27) for supplying a high-frequency signal to be amplified or frequency-multiplied to produce a high-frequency field in region A of suitable frequency to cause cyclical variations in the transit time of electrons through the retarding-field region so that cyclical changes of the current density of the stream passing through the wall 13 into the region B are produced, and means (such as resonator 12) in region B responsive to the cyclical changes of current density for abstracting high-frequency energy from the stream. Thus by applying a high-frequency signal to the ordinary reflex tube of Fig. 5, the tube may be made to operate either as a stabilized or "lock-in" oscillator, or as a driven frequency-multiplier. When used as a frequency-multiplier, as in Figs. 5 and 7, the stream may pass initially through the region B; it is shown that any initial velocitymodulation at the harmonic frequency so imparted to it does not materially impair, and may assist, the bunching by the fundamental signal in region A. When used as an amplifier it is preferred to arrange that the stream does not initially pass through region B, as in Figs. 11 and 15. The signal may be applied to a resonator connected between the permeable wall and the reflector, with a capacitative connection to the latter, Fig. 6 (not shown); or it may be generated within the valve by making the reflector the anode of a flat triode 52, 51, 17, Fig. 7, or a cylindrical one Fig. 8 (not shown), oscillating in a Hartley circuit; or may be selfgenerated within the region A, which is shown under certain conditions to have a negative conductance, Fig. 15. In Fig. 11, the main cathode 71, control grid 82 and earthed permeable-wall grid 72 form an oscillating triode, the reflector 76 receiving the signal from a tapping 98 on the oscillating coil 83. The electron stream may start in region A, for example from an annular cathode or from an electron gun firing a single beam in from the side. In an amplifier, the high-frequency energy is self-generated in resonator 138, Fig. 15, capacity-coupled to reflector 137 by flanges 141, and a modulating signal 150 may be applied to control grid 147.
Patent GB-1146433-A (GB)
Title: Improvements in or relating to louvre windows
Inventor: THOMPSON NORMAN
IPC: E06B7/084
Filed: 1965-08-17
Abstract: 1,146,433. Louvred ventilators. BETA ALUMINIUM PRODUCTS Ltd. 12 Aug., 1966 [17 Aug., 1965], No. 35139/65. Heading F4V. [Also in Division E2] A pivoted louvre window has a plurality of louvre panels 5 each mounted between a corresponding pair of end fittings 6 pivotally mounted in a frame 1 of the window about a common axis defining a fixed pivot axis for the panel, and regulator means comprising a linkage in two sections respectively connected to the fittings on the two sides of the window, so that an operative torque is in use applied to each end of each panel, whereby a satisfactory seal may be provided along the whole length of each louvre. The regulator means may comprise handle 20, torque tube 21, drive plates 22, drive studs 23, parallel links 24 and driving studs 26 on louvre bearing members 13. An alternative regulator means with the operating member in the form of a knob is illustrated with reference to Figs. 8 and 9 (not shown).
Patent GB-522310-A (GB)
Title: Improvements in wall structures and in glass construction blocks therefor
IPC: E04C1/42
Filed: 1938-12-02
Abstract: 522,310. Walls of glass bricks. HADDAN, R. (Corning Glass Works). December 2, 1938, No. 35185. [Classes 20 (iv) and 87 (i)] A wall structure of glass blocks or like units bonded together by mortar is provided with a peripherally-extending moisture stop 12 in the joints between the units. The stop 12 is of porous waterproof or absorbent material and is preferably resilient and of sufficient size to be slightly compressed when the blocks are in final position. The stop may be formed of asphaltimpregnated felt, ground cork cemented together by a waterproof resin, sponge rubber or bagasse wallboard. The glass unit shown in Fig. 2 is formed from two flanged sections 14 which are pressed together to form a unitary bond 15 while the edges of the sections are heated to softening temperature. The outer face of each of the flanges of these sections is outwardly flared as at 18 for a portion of its depth and then tapers inwardly as shown at 19. The adjacent surfaces 19 form a shallow groove for the reception of the stop 12; the space on each side of the strip 12 is of double-wedge cross-section and is filled with mortar which may be reinforced by expanded metal or wire mesh. The unit shown in Fig. 3 comprises two flanged sections 20 joined together by a metal strip 21 engaging shoulders 25 on the sections. These sections are joined together with an interposed glass plate 26, thin strips 27, 28 of impregnated cloth being disposed between the glass surfaces and mortar joints. The outer faces of the flanges of. the sections are such as to provide spaces of doublewedge cross-section between the units for the reception of mortar. Specification 522,311 is referred to.
Patent GB-392850-A (GB)
Title: Improvements in and relating to air-cooled condensers for refrigerating machines
IPC: F25B39/04
Filed: 1932-12-12
Abstract: 392,850. Refrigerating. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Steenstrup, C. ; 2250, Grand Boulevard, Schenectady, New York, U.S.A.) Dec. 12, 1932, No. 35196. Convention date, Dec. 12, 1931. [Class 29.] Compression machines and systems.-The aircooled condenser of a machine, e.g. of the type described in Specification 284,730, [Class 29, Cooling &c.], comprises a circular header 9 connected to the casing 1 containing the compressor and its driving motor and into which the compressed vapour is discharged and having vertical condensing tubes 14 closed at their upper ends. The tubes are secured to plates 18 which make contact with the sides of the heat-dissipating fins 8 secured to the casing as described in Specification 331,449, [Class 29, Cooling &c.]. The condensate passes from the header 9 through a regulating valve 5 to the evaporator, and the operation of the compressor motor is regulated by a thermostat in contact with the evaporator. The parts of the machine may be mounted upon the top of a refrigerator cabinet.
Patent GB-507666-A (GB)
Title: Improvements in or relating to pressure gauges
IPC: G01L7/04
Filed: 1937-12-20
Abstract: 507,666. Pressure gauges. BARNET INSTRUMENTS, Ltd., and GRANT, C. R. A. Dec. 20, 1937, No. 35263. [Class 106 (ii)] A pressure gauge having two pressure responsive means, comprised by Bourdon tubes and so connected with the indicating pointer that decrease in curvature of one or other tube tends to shift the pointer in opposite directions, has one of the pressure responsive means sealed and the other connected with a source of pressure and at least one of the pressure responsive means comprised by two or more Bourdon tubes. As shown the upper pair of tubes 11 extend anticlockwise from a support 12 and the similar .lower pair 13 extend clockwise from the same support. Their free ends 14, 15 lie diametrically opposite and the ends of each pair are connected by a light bar which is connected pivotally to links 16, 17 which extend inwardly and are connected by a pivot pin 20 to a quadrant member 22, the pin being adjustable in a slot in the quadrant which pivots about an axis 19. The upper pair of tubes are sealed while the lower communicate with the pressure via the hollow support 12. The external pressure influences both tubes to an equal and opposite extent. In a modification, both pairs of tubes run counterclockwise from the pillar and the free ends are connected on opposite sides of the axis 19 to the quadrant. In a further modification the pairs of tubes are in the same direction. The lower pair are connected by a link to a lever rocking about a fixed pivot. This lever at its mid point carries a pivot for a two-armed lever with equal arms the free ends of which are connected by links to the quadrant and the other pair of tubes respectively.
Patent GB-470911-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C25/08
Filed: 1935-12-20
Abstract: 470,911. Roller bearings. BUEL, H. Dec. 20, 1935, No. 35358. [Class 12 (i)] A taper roller bearing has a third race ss surface projecting inwardly from the larger end of the outer race ring, making an angle of 91‹ to 105‹ to the outer race surface and engaging the rounded ends of the rollers. If the inner cone is removed the rollers are retained by the rings 8 engaging the projections 7 on the roller ends.
Patent GB-680422-A (GB)
Title: Improvements in the production of metal drums
IPC: B21D51/34
Filed: 1947-12-31
Abstract: 680,422. Seamed joints. DEFAUW, M. Dec. 31, 1947 [May 27, 1946], No. 35403/47 Class 83 (iv). [Also in Group XVII] In a method of making a metal drum with seamed end covers and rolling rings moulded on the body of the drum, at least one reinforcing ring is introduced into the seamed joint between the body and each end cover and a reinforcing element is located internally within one or more of the rings. The reinforcing ring 1 in the joint between the body 2 and cover 3 may be a plain ring of rectangular section as shown in Fig. 1. Alternatively the ring may be hollow or may be of L-shape or may be of H -shape in cross-section. Other forms are shown in Figs. 4 and 5. A number of reinforcing rings may be used, as shown in Fig. 9. The joint may be reinforced by a ring 13 of angle section on the outside of the joint, Fig. 13. In other forms, Figs. 15, 16, a part 7 or 8 of the reinforcing ring extends downwardly along the inside of the drum wall. The internal reinforcing member 10 for the pressed-out rolling ring may be an anglesectioned ring, Fig. 18, a solid or hollow member of circular section, Fig. 19, or of semi-circular section, Fig. 22. The wall of the drum may also be reinforced in the region of the bung-hole.
Patent GB-155546-A (GB)
Title: A process for the manufacture of sulphur preparations of the thiophene series from tar oils of bituminous rock rich in oil
Filed: 1920-12-17
Abstract: The process of preparing oils containing thiophene derivatives described in the parent Specification is modified by additional treatment of the oils at 100-110 DEG  C. with sodium, sodamide, or sodium and dry gaseous ammonia.  After distillation in vacuo the oils require only small amounts of alkyl magnesium halide for the final treatment, or this latter may be omitted entirely.  The products have medicinal value.ALSO:The process of preparing oils containing thiophene derivatives described in the parent Specification is modified by additional treatment of the oils at 100-110 DEG  C. with sodium, sodamide, or sodium and dry gaseous ammonia.  After distillation in vacuo the oils require only small amounts of alkyl magnesium halide for the final treatment, or this latter may be omitted entirely.
Patent GB-176910-A (GB)
Title: Improvements in baling presses
IPC: B30B9/32
Filed: 1920-12-21
Abstract: 176,910. Shirtliff, F. Dec. 21, 1920. Baling-presses.-Relates to baling-presses for scrap metal &c. of the type in which baling takes place in two or more separate stages. The material is placed between two angular members a, b, Fig. 2, forming when opened a substantially rectangular receptacle open at the top. The members are closed by internally-toothed slotted members h, i engaged on a pinion k and operating through levers g and toggles e. This effects the first compression, extended and interfitting fingers o preventing the material from rising during the closing. A plunger c, Fig. 1, then forces the partially baled material past rollers d, which may be adjustable, or into a tapered shoot.
Patent GB-970254-A (GB)
Title: Clenching press for the attachment of pronged devices,such as pronged garment fastening devices,to material
Inventor: WILSON CLARENCE MARTIN
IPC: A41H37/02
Filed: 1962-09-21
Abstract: 970,254. Spiked plates; staples; washers. THOMAS WALKER Ltd. Sept. 13, 1963 [Sept. 21, 1962], No. 35928/62. Heading F2H. [Also in Division B4] A pronged fastener for garment material comprises a staple 1 having prongs 2 and a back-plate 5 having apertures 4 through which the prongs are inserted and bent over by a clenching press (see Division B4). In the modification, shown in Fig. 9, the staple portion is provided with double prongs 133 and a hook tongue 130, the back-plate 135 being corrugated.
Patent GB-471178-A (GB)
Title: Improvements in or relating to stocking, more particularly to stockings made by circular knitting
IPC: D04B9/46
Filed: 1935-12-30
Abstract: 471,178. Knitting. NEBEL, M. Dec. 30, 1935, No. 36003. [Class 74 (ii)] Plush sinker loops 8 are knitted in spliced area of stockings &c. made on circular machines, either with every loop 9 of the main yarn or with selected loops. The selection is made in the vicinity of fashioning marks &c., with a view to strengthening and masking such places as far as possible. The Figure shows the loop structure in the vicinity of the narrowing line 2a at the side of the heel pocket of a stocking &c., each loop 9 in the spliced area having a plush sinker loop 8. Specifications 13905/87, 4471/93, 9700/08, [all in Class 74], and 420,664 are referred to.
Patent GB-926369-A (GB)
Title: Awnings, particularly for caravans
IPC: E04H15/08
Filed: 1961-10-06
Abstract: 926,369. Awnings. R. G. ANDRAULT. Oct. 6, 1961 [Oct. 6, 1960; July 18, 1961; Sept. 28, 1961], No. 36019/61. Class 20 (1). [Also in Group XXXII] An awning for attachment to a caravan has a folding frame comprising two end sections 1, 2 and at least one intermediate section 3, each section having a post 5 adjustable in length, a crossbar 21 hinged to post 5 and the adjoining post by a removable joint 19, Fig. 2, and a ridge pole 17 hinged at 15 to post 5 and being attachable at 18 to the caravan to which canvas 49, Fig. 15, is attached at the same points as the ridge-poles by a batten 52 incorporated in edge 50 of canvas 49. The posts 5 and cross-bars 21 are adjustable in length by telescopic parts locked together by pins, and ridge-poles 17 are telescopic with the two parts biased apart by a spring, Figs. 3, 4 (not shown). The batten 52, which may comprise several pivoted sections, engages bolts 54, Fig. 16, fixed to caravan C; the ridgepoles are attached to bolts 54 by twisted plates 38, 39, which may be linked to the ridge-pole by a universal joint, interconnected rings, or elasticallyconnected telescopic members, Figs. 8-10 (not shown).
Patent GB-909400-A (GB)
Title: Improvements in or relating to universal couplings
Inventor: CAUNT ALAN
IPC: F16D3/28
Filed: 1959-10-23
Abstract: 909,400. Universal joints. METALASTIK Ltd. Oct. 20, 1960 [Oct. 23, 1959; June 2, 1960], Nos. 36028/59 and 19575/60. Class 80 (2). A universal coupling is formed by a number of pairs of flexible ball joints riveted or bolted axially to shaft members 20, 21, each ball joint comprising an inner ball 15 on which is bonded a rubber sleeve 16 housed in cup-like portions 17, 18 of two plates 25, 26 which are clamped face to face by a part or parts 30 surrounding a periphery of the plates and locked over the adjacent edge of at least one of the plates. The rubber sleeve may be of uniform thickness and may conform internally and externally to the spherical surfaces before clamping. The plates 25, 26, formed as an intermediate ring, are clamped at their outer and/or inner peripheries by spinning the peripheries 30, 31 of one plate over the other, or by spinning over separate endless channel-sectioned rings (Fig. 4, not shown) or by separate channel-sectioned straps fitted around the peripheries and welded or riveted to the plates at their ends. Separate links, each housing a pair of balls, may replace the common intermediate member 25, 26.
Patent GB-367065-A (GB)
Title: Improvements in or relating to the control and protection of electrical apparatus
IPC: H02H11/00
Filed: 1930-11-29
Abstract: 367,065. Protective cut-out arrangements. BRITISH JEFFREY-DIAMOND, Ltd., Stennard Works, Wakefield, Yorkshire, and TINSLEY, H., 289, Lidgett Lane, Moortown, Leeds. Nov. 29, 1930, No. 36031. [Class 38 (v).]. In the distant control combined with the protection of portable earthed electrical apparatus (such as coal-cutters) by means of a low voltage circuit derived from the mains and having an earth return through the earthed apparatus as in Specification 248,805, [Class 38 (v), Electric switches &c.], a low voltage direct current is used derived from a full-wave non-rotary rectifier 1 connected to the A.C. mains through a transformer 2. The D.C. side of the rectifier is connected on the one hand to the earthed frame 10 of the main gateend switch 4 and on the other, through a closing and maintaining coil 5 of the switch 4, through a pilot trailing cable 6, through a limiting resistance 7 and the starting switch 8 on the motor to the earthed frame of the motor. By closing the switch 8 the energized solenoid 5 raises the main switch to the closed position ; if the earthing circuit fails, so that the apparatus is no longer earthed, the solenoid 5 is deenergized and the main switch assumes the off position. On overload in the main circuit, the overload coils open the switch 14 in the maintaining circuit, or the core-balancing arrangement 11 breaks the circuit of the primary of the transformer 2 with the same result. If the low voltage trailing cable develops a fault to earth, the limiting resistance 13 is no longer in the circuit, the voltage across the solenoid 5 is excessive and, in consequence, an auxiliary solenoid 13 connected across the solenoid 5 becomes energized sufficiently to raise the switch 14 to the open position and break the maintaining circuit. Indicating lamps 15 show that the main switch is closed and that the rectifier is working.
Patent GB-1019233-A (GB)
Title: Blade wheel propeller for ships
IPC: B63H1/10
Filed: 1962-09-24
Abstract: 1,019,233. Blade wheel propeller. J. M. VOITH G.m.b.H. Sept. 24, 1962 [Sept. 28, 1961], No. 36158/62. Heading B7G. A propeller has a rotatable blade wheel 1 pivotally carrying blades 2 connected by linkage 8, 5, 7 to cross-heads 4 pivoted on a movable control plate 3, each lever 7 being pivoted at 6 to wheel 1 and being slidably mounted in cross-head 4, the axis of pivot 6 lying in the same radial plane as the axis of pivot 12 and the axis 11 of wheel 1. The arm of lever 7 which is connected to control plate 3 makes an angle of 10 degrees with said plane, whilst in Fig. 2 (not shown) it is coincident with the plane and the angle included by the arms of lever 7 is 100 degrees; in an arrangement in Fig. 3 (not shown) similar to Fig. 1, the included angle is 100 degrees. In Figs. la, 2a, 3a (not shown) the lever 7 is straight or nearly straight and is connected to wheel 1 by another lever, the ratio of the lengths of the arms of lever 7 is approximately 1.2: 1 and 1: 2 in Figs. 2a, 3a respectively. In Fig. 2a the pivot of the crosshead and the centre of the control plate coincide.
Patent GB-1235269-A (GB)
Title: Improvements in casting
IPC: B22C9/10
Filed: 1969-07-18
Abstract: 1,235,269. Moulding processes. IDEAL STANDARD Ltd. 18 July, 1969 [30 July, 1968], No. 36209/69. Heading B3F. Two halves 2, 4 of a core-box are packed with sand, e.g. mechanically or by compressed air, and include a body 3 of plastics material so that after the halves are assembled together to form a core, the core is subsequently baked, e.g. with the top half 4 removed, to cure the core and volatilize the body 3 to leave an air vent. The vent-forming body 3 is of an expanded polystyrene or expanded polyurethane polyester and may be shaped like a rod or an X or a Y to extend to the core-box sides.
Patent GB-1081452-A (GB)
Title: Block copolymer and process
IPC: B60C9/00
Filed: 1964-09-03
Abstract: Block copolymers may be prepared from  (i) a polyester of M.P. at least 200 DEG C. and having the formula <FORM:1081452/C3/1> and  (ii) a polyamide of M.P. at least 175 DEG C. and having the formula (A) H{HN-(CH2)c-CO}mOH; <FORM:1081452/C3/2> <FORM:1081452/C3/3> <FORM:1081452/C3/4> where A is a bivalent aromatic radical and a, d, e and f are each 2 to 10; c is 3 to 10; m is 10 to 300; x is 10 to 150 and y is 10 to 200 by melting (i) and (ii) in such proportions that the ratio of OH end units in (i) to NH2 and units in (ii) is from 2:1 to 1:2, maintaining the melt under reduced pressure to vaporize volatile matter until the copolymer formed is insoluble in boiling o-dichlorobenzene, and removing the molten product before its melting point drops below 200 DEG  C. or the M.P. of the lowest melting of (i) and (ii), whichever is higher.  The polymers may be spun into fibres useful in tyres.  Various polyester- and polyamide-forming reactants are listed.  In the Examples (i) is polyethylene terephthalate and (ii) is nylon 6 or 66.
Patent GB-985413-A (GB)
Title: Improvements in or relating to bells, chimes and like signalling devices
IPC: G10K1/26
Filed: 1961-10-11
Abstract: 985,413. Electric bells. V. & E. FRIEDLAND Ltd., and J. DOGGART. Oct. 10, 1962 [Oct. 11, 1961], No. 36457/61. Drawings to Specification. Heading G5J. An electric signalling device has a base and cover one of which is a moulding having shaped recesses to contain the battery cell or cells. Figs. 1-8 (not shown) illustrate a chime having two tone bars 29 each supported rigidly at one nodes and freely at the lower node in such a manner that they may be struck at their antinodes by a striker reciprocating in a solenoid of known type. Another embodiment using suspended sound tubes again struck by a reciprocating mechanism is described (Figs. 9-13 not shown). An embodiment using a dome type bell struck by a reciprocating striker in a solenoid is also described (Figs. 14-19 not shown). The connections between the cells may be made with phosphor bronze strips. By arranging that the contact to the solenoid is broken only when the striker is at the point of maximum flux the beat of the bell is made minimal. Specification 959,666 is referred to.
Patent GB-1377973-A (GB)
Title: Coupling devices
IPC: H01R4/60
Filed: 1972-08-09
Abstract: 1377973 Conduit couplings SIMPLEX POWER CENTRE Ltd 9 Aug 1972 [4 Aug 1971] 36543/71 Heading H2E A coupling device comprises a metal sleeve 31 having one or more tongues 21 within apertures 17 in the sleeve wall, the free end of the or each tongue having a sharp edge which lies inwardly of the internal surface of the sleeve and obliquely to a plane normal to the sleeve axis. The sleeve is stamped from sheet steel and the tongues simultaneously stamped such that the metal along the boundaries 18, 19, 22, 23 of the aperture 17 is dragged to form the sharp edge (24, Fig. 3, not shown). From the uncut end 20 the tongue is bent first to extend outwardly of the sleeve and then to extend through its aperture 17 beyond the internal surface of the sleeve, Fig. 5 (not shown). Side edges of the stamped sheet may be left unjoined to form a gap 32 to provide radial resilience. A sleeve may receive a conduit pipe at one end 33 and the sharp edge 24 will dig into the pipe and retain it; the other end may be welded to a box. A sleeve for joining two pipes has tongues 21 adjacent each end with the free ends facing towards the centre of the sleeve.