baber/WOPTO huggingface dataset:
Patent GB-796734-A (GB)
Title: Magnetic recorder and reproducer
IPC: G11B5/17
Filed: 1955-07-15
Abstract: 796,734. Magnetic recording and reproducing heads. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 15, 1955 [July 19, 1954], No. 20517/55. Class 40 (2). In order to permit of its being rapidly repositioned the core 15 of a magnetic recording and reproducing transducer embodied in a magnetic recorder and reproducer is so formed that it may slide along the transducer winding 16 in a plane parallel to the surface 22 of a magnetic record medium 21 with which it coacts, and the winding is arranged to be mounted adjacent the surface. As shown, the winding comprises a single turn of low resistance material and forms the sole support for the core which may be laminated and has a non- magnetic gap 17. The winding is linked with a transformer 18 comprising a multi-turn winding 19 and a core 20.
Patent GB-320420-A (GB)
Title: Improvements in sticks for playing the game of polo
IPC: A63B59/16
Filed: 1928-07-14
Abstract: 320,420. Adeney, E. S. July 14, 1928. Shafts.-A shaft for a polo stick comprises a core 1 of flexible material encased by a number of cane strips 2 secured together along their adjacent faces, a coating 3 of wax applied to the outer surface of the strips, a thin layer 4 of flax wound thereon, a layer of paper 5 wound on the flax and an outer covering 6 of braided flax or other textile material. The core is formed of steel and may vary in cross-section along its length. The cane strips are preferably three in number and are tapered longitudinally.
Patent GB-693875-A (GB)
Title: An improved apparatus for moving heavy loads such as engine housings in rooms with solid floors
IPC: B62B5/00
Filed: 1951-08-31
Abstract: 693,875. Skids. BORKEY, W. Aug. 31, 1951. [Sept. 29, 1950] No. 20559/51. Class 78 (ii). A skid for supporting heavy loads comprises a chain of rollers e which is free to move around a crosspiece b secured to side frames a ; the upper edge of each side frame being toothed and together supporting the load.
Patent GB-1147501-A (GB)
Title: Magnesite refractories
Inventor: DAVIES BEN
IPC: C04B35/03
Filed: 1967-05-03
Abstract: 1,147,501. Magnesite brick. DRESSER INDUSTRIES Inc. 3 May, 1967 [7 June, 1966], No. 20576/67. Heading C1J. Magnesite brick consists of at least 85% MgO, less than 3% Al 2 O 3 +Fe 2 O 3 +Cr 2 O 3 , and CaO, SiO 2  and P 2 O 5  together totalling at least 2% and being in substantially the proportions enclosed by the area ABCD shown in Fig. 1, with the proviso that (a) the shape contains at least 0À2% P 2 O 5 ; (b) said P 2 O 5 , CaO and SiO 2  are substantially all combined as calcium silicophosphates; and (c) the B 2 O 3  content is sufficiently low and the proportions of the said P 2 O 5 , CaO and SiO 2  are such that the shape has a modulus of rupture at 2,600 F. in excess of 500 p.s.i. It is essential that the CaO and P 2 O 5  are allowed to react with each other rather than with the magnesia. The brick-making batch may be made by: (a) forming the batch from size-graded dead burned magnesite, finely divided silica, lime-yielding materials and calcium phosphate-yielding materials such as monetite, whitlockite, brushite, fluorapatite, chlorapatite, hydroxylapatite, carbonateapatite and isoclasite; (b) forming a prereacted grain from dead-burned magnesite, caustic magnesia, silica, lime-yielding materials and calcium phosphate-yielding materials, intimately mixing, burning, e.g. at 3140 F. and sizing and grading to form the brick-making batch; and (c) burning and ball-milling a binder batch of lime, silica, lime-yielding and phosphateyielding materials to form a prereacted binder batch which is then added to a size-graded dead burned magnesite brick-making batch. The brick-making batches are tempered with 5% lignin liquor pressed into brick at 10,000 p.s.i., dried at 250 F. for 10 hours and fired at 2800 F. for 10 hours. The fired brick may be impregnated with a non-aqueous cokeable binder such a star.
Patent GB-128125-A (GB)
Title: Improvements in Floor Coverings.
Inventor: ROY NORMAN BUCHANAN
IPC: D06N1/00
Filed: 1918-12-11
Abstract: 128,125. Roy, N. B. Dec. 11, 1918. Carpets etc.; materials, special, fabrics containing; yarns specially treated, fabrics with.-Floor coverings are composed of fabrics woven according to a design with differently coloured strands of rubber or rubberized material, the fabric being passed through a calender, joined to a rubberized fabric backing, and vulcanized, preferably under pressure. The strands are formed by forcing rubber or rubber-compound through a forcing- machine, with or without a fabric core, and may ba coated with talc, passed through soapy water, or otherwise treated prior to or during the weaving operation. According to the Provisional Specification, the use of a backing is optional.
Patent GB-710238-A (GB)
Title: Improvements in or relating to a method for chamfering circular gear like elements
IPC: B23F19/10
Filed: 1952-08-19
Abstract: 710,238. Gear-finishing. MICHIGAN TOOL CO. Aug. 19, 1952 [Aug. 30, 1951], No. 20788/52. Class 83 (3) A method of chamfering the ends of the teeth of circular toothed work consists in positioning the work 17, Fig. 1, relatively to a shaving cutter 12 so that its end face makes an angle of 15-75 degrees with the pitch surface of the teeth of the cutter and then reciprocating the cutter. During the reciprocation, the cutter is fed vertically and may be moved at right angles to its direction of reciprocation to distribute wear. In a modification, the work axis is horizontal and the cutter has inclined cutting edges 13<SP>1</SP> Fig. 2. Corresponding rotary cutters as shown in Figs. 4 and 5 may be used, the latter having a hypoid-like tooth form. For helical gears, the teeth of the cutters are modified. The chamfering is done after roughing and before final shaving of the teeth.
Patent GB-495663-A (GB)
Title: Improvements in or relating to fluid cooling arrangements for electron discharge tubes
IPC: H01J19/36
Filed: 1937-07-27
Abstract: 495,663. Condensers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 27, 1937, No. 20793. Convention date, July 30, 1936. [Class 37] [Also in Group XL] The anode which forms part of the envelope of an electron-discharge tube is fitted with a tapered sleeve held within a tapered opening in a cooling block. An aluminium, copper, or brass block 1 is adapted to receive a thermionic valve 33 and a condenser. The condenser plates are formed by the block and by an electrode 9 which is secured by screws 9A into a guide 8. A stem 6 is screwed into the guide 8, and a shoulder on the stem is secured, through a gasket 11, against a shoulder on an insulator 2 by nuts 23. The insulator is secured to the block through a lead, rubber or varnished silk gasket 5. A rounded ridge 34 on the insulator acts as a corona shield. Adjustment of the capacity is effected by an electrode portion 17 which is mounted on a member 16 forced against a rod 15 within the stem 6 by the fluid pressure. The electrode parts 9, 17 are connected by a bellows 18 and the rod 15 presses through a steel ball 14 against a nut 13, which is used for moving the electrode portion 17. The condenser may be filled with compressed air or liquid, and a valve 26 and pressure gauge 29 are provided. The valve anode fits within a tapered copper member 55 held by a copper member 50 which is provided with a helix 51 for the cooling liquid and is soldered to the block 1. Inlet and outlet pipes 46, 47 are secured to a plate 43 which, with an intermediate plate 40, is suitably grooved to connect the pipes to the helix. Water, which may be mixed with alcohol, air, hydrogen, oil, or carbon tetrachloride may be used for cooling. The member 55 may be secured or removed by a bolt 42. The apparatus may be used in amplifiers having a balanced input or output circuit, the condenser being used as a neutralizing condenser.
Patent GB-491683-A (GB)
Title: Improvements in and relating to mattresses
IPC: A47C23/155
Filed: 1937-07-27
Abstract: 491,683. Mattresses. HALL, W. J. July 27, 1937, No. 20796. [Class 52 (iv)] A mattress surface is built up from diamondshaped links 2 with extended tail-pieces 3 fashioned with hooks to engage the adjacent link in a row, the rows being interconnected by separate hooks 12 engaging the lateral angles of the links 2.
Patent GB-1223454-A (GB)
Title: Improvements relating to shear-blade assemblies for cutting metal sheets or plates
IPC: B23D35/00
Filed: 1968-05-02
Abstract: 1,223,454. Shear blades. SCHLOEMANN A.G. 2 May, 1968 [11 May, 1967], No. 20801/68. Heading B3W. A blade 5 screwed to a holder 4 is mounted on a shear saddle 1 by means of one or more wedges 10 which are releasably secured to the saddle by spring-loaded bolt(s) 12, a wedge surface of the, or each, wedge bearing against the blade holder 4 so as to urge a vertical face 3a and an inclined face 2a on the holder into engagement with faces 3 and 2, respectively, on the saddle. To release the wedge(s) 10 fluid under pressure is applied to a cap 14 to compress springs 18. Alternatively the lock-nut 15 securing the cap on the bolt may take the form of the piston of a fluid pressure cylinder. The wedge(s) may alternatively be released by fluid pressure applied to the side of the cap.
Patent GB-442861-A (GB)
Title: A safety device to prevent the toppling and/or crashing of railroad cars in train collisions and derailments
IPC: B61D15/06
Filed: 1934-07-17
Abstract: 442,861. Preventing derailing of railway vehicles ;fluid - pressure brakes. WITTICH, P., 25, Kottbuser Ufer, Berlin. July 17, 1934, No. 20872. [Classes 103 (v) and 103 (vi)] [See also Group XXXIV] In order to prevent overturning of railway vehicles, in the case of collision or derailment, catches b, Fig. 1, with hook-shaped ends e pivoted under the vehicle body, are adapted to be released, when the vehicle tilts or leaves the rails, and to fall with their free ends on to the rails so that, on any additional tilt or lift, the hooks e engage behind the rail flanges. Automatic actuation of the pneumatic brakes may occur simultaneously. Preferably the pivotal axes of the catches are associated, as shown, with pawl-andratchet devices x to prevent free upward movement of the catches b, the pawls being released preliminary to resetting the catches. In case of shocks sufficiently violent to derail the vehicle instantaneously, the catches are provided on the inside with additional hook surfaces f also designed to engage the rails. The actuation of the catches when the vehicle tilts is effected by means of pivoted contact levers l, Fig. 4, which strike the ground and, through the medium of cables o attached to their inner ends, displace a longitudinal rod p, which in turn, through operating levers i, Fig. 5, causes the withdrawal of a second rod h fitted with supports g for the catches b. A strong spring k retains the rod h in its normal position. Movement of the rods p and h may also control the vehicle brakes. Each vehicle may be provided with several sets of catches, and the actuating mechanisms on all the vehicles of a train may be interconnected for simultaneous operation. In another construction the operating levers i are controlled by electromagnets adapted to be energized when the vehicle tilts or is raised at one end by the displacement of mercury in V-shaped tubes fitted with suitable circuit contacts. According to another arrangement, (Fig. 7, not shown) the rod p is actuated, when one end of the vehicle rises, by a spring-controlled pivoted lever having at its lower end a roller normally in contact with the rail. In a still further modification, the buffers on the locomotives may befitted with two relatively slidable sleeves which, in the event of a collision, are pressed towards each other against the action of a spring and close an electric circuit for operating all the automatic catches on the train.
Patent GB-993311-A (GB)
Title: Flow insensitive blood densitometer
IPC: G01N21/31
Filed: 1961-06-09
Abstract: 993, 311. Photo-electric blood densitometers. WATERS CORPORATION. June 9, 1961 [July 1, 1960], No. 21005/61. Heading G1A. A blood densitometer comprises a source of radiation a sample chamber and two photosensitive devices each receiving a portion of the radiation transmitted through the chamber, the first portion comprising radiation of a first wavelength and the second portion comprising radiation of second and third wavelengths respectively longer and shorter than the first wavelength. Light from an incandescent lamp 11, Fig. 1, is passed through a sample chamber 12 on to a dichroic mirror 13 which reflects light of wavelength approximately 800 mÁ through a band-pass filter 17 on to a photoresistive cell 19, and transmits light of wavelengths approximately 640 mÁ and 950 mÁ through filter 14 passing light of these wavelengths to a similar cell 16. The outputs of the cells 16 and 19, Fig. 2, are connected in series opposition across potentiometers 24 and 30, the tappings of which are adjusted to give zero indication on a galvanometer 32 prior to the injection in the bloodstream of a dye exhibiting absorption in the 800 mÁ wavelength range; the absorption is subsequently measured to indicate and record the blood's condition. It is stated that the connection of the outputs of the two cells eliminates the effects on measurement of variation of flow through the sample chamber and, due to the spectral characteristics of the cell-filter combinations, those due to the presence of oxygen in the blood. Specification 990,540 is referred to.
Patent GB-1190613-A (GB)
Title: An Encased Motor Driven Refrigeration Compressor.
IPC: F04B39/12
Filed: 1967-05-05
Abstract: 1,190,613. Induction motors for refrigeration compressors. LICENTIA PATENT-VERWALTUNGS G.m.b.H. 5 May, 1967 [6 May, 1966], No. 21008/67. Heading H2A. In an encased refrigeration compressor driven by a single-phase induction motor having an auxiliary phase, the motor stator winding coil heads projecting outwards from that end of the stator lamination stack which faces a bearing end-plate 8 to which the compressor is connected leave over at least one sector a gap where no coil heads project and in which are a portion of the bearing end-plate and of the drive connection between the motor and compressor. This minimizes the axial length, and in Fig. 1 is achieved by disposing the auxiliary winding coil heads 12 in recesses 13 in the stack, whilst between the main winding coil heads 11 are the flat non-magnetic bearing end-plate 8 and the compressor and its drive connection 5, 6, 14 ... 20 such plate and compressor being similar to those described in Specification 1,189,812. In Figs. 3 and 4 (not shown), the auxiliary winding embraces and is normal to the main winding, whilst in Figs. 5 and 6, it is in the same slots as the main winding but the head 12 is disposed around one side of the stack end face.
Patent GB-162581-A (GB)
Title: Improvements in joint making packing
IPC: F16B43/00
Filed: 1920-07-12
Abstract: 162,581. Robinson, S. July 12, 1920. Joint-making packing. - A packing-washer for the bolts of tunnel sections &c. is made of lead, lead composition, or similar soft material. The washer has a flange 11, which is gripped 'between the flange on the tunnel section and the bolt head or nut, a bevelled flange 12 which enters the bolt hole and a. bevelled flange 13 which enters the bore of a. steel &c. washer placed between the flange 11 and the nut. The bore 10 of the packing-washer fits the screwthreads or an enlarged part of the bolt. A beading 22 may be formed on the flange 11.
Patent GB-441395-A (GB)
Title: New and useful improvements in furnace construction
IPC: F23M5/02
Filed: 1934-07-19
Abstract: 441,395. Liquid, gaseous, and pulverulent fuel furnaces. STURROCK, A., 1421, Richardson Street, Victoria, British Columbia. July 19, 1934, No. 21192. Convention date, July 22, 1933. [Class 51 (i)] The base 5 and flash wall 7 of a furnace burning liquid, gaseous, or pulverulent fuel is formed of courses of imperforate firebrick units 6 each having a channel 8 on its underside and grooves 9 and 10 on its side faces leading from the channel 8 to the upper surface of the unit. The grooves of adjacent units correspond to form air ducts 11. The outer grooves 9 are inclined to the vertical so that the air currents passing upwardly through the ducts 11 of adjacent units intersect.
Patent GB-532524-A (GB)
Title: Improvements in gas producers
IPC: C10J3/34
Filed: 1939-07-24
Abstract: 532,524. Gas producers ; grates. FITTON, A., and HURLEY, T. F. July 24, 1939, No. 21409. [Classes 51 (i) and 55(i)] A combustion zone is initiated in a constricted part 3 of the producer by a water cooled tuyere 9 and the gases pass downwardly and obliquely through the hot fuel to an outlet grid 24, the ashes passing to a grate 20 immediately below the tuyeres. The grate is formed in the upper part of a partition 17 and comprises a cylindrical portion 20 movable about a pivot 23 by a hand lever or mechanically, over curved surfaces 19 the ashes being swept through openings 21 into an ash pit 27. In modifications, the body of the producer may be formed with a water jacket which encloses the tuyere, or may have a refractory lining in the vicinity of its throat.
Patent GB-848968-A (GB)
Title: Mechanism for intermittently feeding a web to a treating machine
IPC: B65H20/04
Filed: 1958-07-04
Abstract: 848,968. Feeding webs. HESSER, MASCHINENFABRIK A. G., F. July 4, 1958 [July 6, 1957], No. 21482/58. Class 100(1) A mechanism for intermittently feeding a web of material to an intermittently-operating treating machine or tool, is characterised by two or more spaced rollers arranged to rotate eccentrically in synchronism with the machine or tool and disposed between two guide rollers in the path of travel of the web, the eccentric rollers being adapted, in conjunction with succeeding draw rollers to form positively a loop between the guide rollers of a length which is adjustable, whereby a continuously-fed web of material will alternatively undergo an acceleration and retardation and the speed of this web will thereby alternate from zero to a maximum and vice versa. As shown a web B, Fig. 1, is fed intermittently to a punch not shown, by rollers 2, 2a, and 27, 28, of which the rollers 2, 28, are driven, an arresting device 25 holding the web stationary during the operation of the punch. The web is fed continuously at uniform speed to the roller 3. Looping rollers 6, 7, are eccentrically mounted on shafts 4, 5, driven through gearing timed so that a loop is formed to render the web stationary under the punch during its operation. The guide rollers 6, 7, may be adjusted in phase relatively to one another by turning the shaft 4 and roller 6 relatively to a pinion 11 releasably locked to the shaft 4 and engaging a pinion 10 on the shaft 5. Adjustment in phase of the rollers 6, 7 causes variation of the size of loop formed. In a modification (Figs. 6 and 7, not shown) the guide rollers may be driven through differential gearing such that the period during which the loop is being formed is increased, while the period of release of the loop is decreased; in this case, the casing of the differential gear is rocked by a continuously driven crank. The differential gear may be replaced by elliptical gearing (Figs. 8 and 9, not shown) to achieve the same object.
Patent GB-143771-A (GB)
Title: Improvements in and relating to automatic fluid pressure regulating valves
IPC: G05D16/18
Filed: 1919-09-02
Abstract: 143,771. Marshall, H. C. Sept. 2, 1919. Fluids, regulating volume of flow of.- A valve, more particularly for use with steam plant, is provided with means whereby the amount of fluid which passes through it is maintained uniform notwithstanding variations in the pressure of the supply. The tubular member a is provided with a series of spiral ridges a<1> at its outlet end, and with a conical bore having ribs or projections a<2> at its inlet end. A flange a<4> receives a ball race b', the other race b<2> of which is seated in a sleeve c. A worm-wheel d is retained in position by a screwed ring a<5> and is attached to one end of a helical spring e, the other end of which is secured to a ring e<1>. The whole device is secured in a casing provided with screwed ends for connexion to the steam conduit. The member is provided with a projecting part g<1> to receive the bearings for a worm j meshing with the worm-wheel d. The worm spindle j<1> is adapted to receive a key or handle on its projecting end for hand operation. The sleeve c carries a fixed valve member k having a conical bore and provided with two diametrically-opposed ribs k' separated by longitudinal channels. The ribs a<2>, k' are so positioned that they may be in register with one another so that the longitudinal channels are open, or, by a relative rotation of 90 degrees, the ribs on one member may be brought opposite to the channels in the other, so that the fluid passage is reduced to the central bore only. The lateral walls of the ribs are disposed at a greater angle than 90 degrees, so that, on rotating the parts, the ribs a<2>, k<1> meet first at points farthest from the centre line to prevent the formation of narrow films of steam. The movement of the member a may be limited by a pin m<1> moving in a groove m. The rotation of the member a is effected automatically by the impact of the steam on the ribs a' against the resistance of the spring e, the extent of throttling increasing with the pressure of the steam.
Patent GB-1488568-A (GB)
Title: Container for salt melts
IPC: G11B23/023
Filed: 1975-05-20
Abstract: 1488568 Salt bath container VVB HAUSHALTSUND VERPACKUNGSGLAS 20 May 1975 [31 July 1974] 21537/75 Heading F4B A container for molten salt, particularly for use in the heat treatment of glass, comprising an outer shell 3 mounted on skid rails 34, an inner container 2 removably mounted within the outer shell to leave a space for the circulation of heating gas, and a guide system for the heating gas comprising T-section ribs 14, one rib 15 being arranged vertically at the mid point of a longitudinal side to divide the hot gas circulation space. The vertical rib 15 is sealed to the inner container, and holes 5 are arranged at different heights in diagonally opposite areas of the walls to accommodate inlet and overflow pipes. Temperature sensors are mounted in the inner tank and a drain hole 8 is provided for emptying the inner container. A baffle guides the hot gas flow below the inner container and co-operates with a channel and outlet 12 to form a leakage or spillage collector. Blocks 31 with bores to allow circulation of the melt and arranged in the container, and a series of containers are connected to allow continuous glass treatment.
Patent GB-531508-A (GB)
Title: Power multiplier
IPC: H01J43/18
Filed: 1939-07-25
Abstract: 531,508. Electron multiplier. FARNSWORTH TELEVISION & RADIO CORPORATION. July 25, 1939, No. 21545. Convention date, Aug. 3, 1938. [Class 39 (i)] In a multiplier primary electrons from the thermionic cathode 11 are controlled by a signal grid 12 and accelerated by an electrode 14 to impact a first secondary emitting electrode 16. The electrons therefrom are accelerated and guided onto a second conical emitter 17 by a perforated electrode 20, a negatively biased disc 41, rings 19 and perforated screen 21 together with the potential on the emitter 17. The rings 19 form the third stage of the multiplier, electrons leaving the emitter 17 at right angles thereto impinging on the rings ; the secondaries emitted by the rings are free to pass to the output anode 4 through the accelerator grid 25. The negatively biased plate 41 opposite a hole in the electrode 20 spreads the electrons over the emitter 17 as described in Specification 521,299. By making the anode 4 form part of the envelope, cooling thereof by a water jacket is facilitated.
Patent GB-1588481-A (GB)
Title: Needlefelt machine
IPC: D04H18/02
Filed: 1978-05-23
Abstract: Needle felt machine in which the needle beam worker arm is articulated on a supporting bearing.