baber/WOPTO huggingface dataset:
Patent GB-219551-A (GB)
Title: Improvements in shoes for train-carried contact members interacting with apparatus on the track
IPC: B60L5/38
Filed: 1923-01-22
Abstract: 219,551. Webb, J. F. Jan. 22, 1923. Shoe collectors. - A vertically sliding contact member carried by a train for interaction with track ramps includes a sole plate 8 having a circular groove 13 in its under surface and a circular edge 12. The sole plate shown is frusto-conical and has a recess 9 to receive the base 5 of a shank 1 to which it is secured by bolts. A number of sets of holes are provided in the sole plate in order that it may be secured to the shank member in several positions to compensate for wear. The shank member comprises a flat web 1 and two end portions 5, 2; the portion 2 is fixed by screws to the lower end of the plunger 20. Specifications 145,580, and 219,345, [Class 105, Railway signals &c.], are referred to.
Patent GB-1485031-A (GB)
Title: Spindles for reels and other sleeve-like bodies
IPC: B65H75/08
Filed: 1974-06-22
Abstract: 1485031 Self-locking mandrels; friction Clutches E A EBERLIN 22 May 1975 [22 June 1974 31 Oct 1974] 27805/74 and 47249/74 Headings F2U and F2C A self-locking mandrel for receiving a reel comprises helical springs 17 to 21 which extend axially and move transversely in their grooves during drive to cause the locking action. The springs may be retained by a ring 22 and pegs 23 to 27 at one or both ends. The grooves 12 to 16 may have concave or flat bottoms and the pegs may be replaced by screws. For long mandrels, a row of springs may be employed in each groove; alternatively, each groove may be sub-divided to receive the individual springs of the row.
Patent GB-285117-A (GB)
Title: Improvements in propelling sea ships, airships, planes, cars and the like
IPC: B63B1/32
Filed: 1926-11-06
Abstract: 285,117. Taft, H. E. Nov. 6, 1926. Driving-arrangements for screw propellers. - Ships are provided with fore and aft tubes and rear propellers, water or air issuing from the tubes impinging on and rotating the propellers to give a propulsive thrust. A ship is provided with open tubes E, F, G which have propellers L, K at the rear end, and a tube D feeds an upper tank C from which fluid is supplied to the propellers for starting when no other power plant is available. The tubes may be externally fitted to existing ships. Valves H, I are provided on the tubes for draining or flooding the ship when necessary.
Patent GB-724756-A (GB)
Title: Improvements in variable speed power transmission mechanism
Inventor: HOPWOOD HERBERT
IPC: F16H63/14
Filed: 1951-11-29
Abstract: 724,756. Change speed control; ratchet gearing. BIRMINGHAM SMALL ARMS CO., Ltd. March 2, 1953 [Nov. 29, 1951], No. 27975/51. Classes 80 (2) and 80 (3). Stepwise turning movements in either direction are imparted to a face-cam 22, transversely operating two shift forks 24, 25 of a four-speed motorcycle gear by repeated strokes in the appropriate direction of a pedal-lever 3 secured to a spindle 1, rotatable about an axis at right-angles to that of the selector-cam 22, and carrying for rotation with it on a flatted portion a plate 14 having two axially extending ratchet teeth 17 spanning two teeth 19 on a quadrant 18 in toothed engagement with a pinion 21 fast with the cam selector 22. The pedal spindle 1 is centralized by a torsion spring 8 having limbs 9 spanning a fixed stop 7 and an axially bent projection 6 on a stop plate 5 mounted to turn with the spindle and having a hinge-plate 12 welded to it and providing a fulcrum edge 13 about which the ratchet plate 14 can tilt axially against a compression spring 15 during the idle return stroke of the pedal. Fixed casing-stops 11 limit angular movement of the stop-plate 5. A detent 28 locates gear and neutral portions.
Patent GB-646686-A (GB)
Title: Improvements in pulverisers
IPC: B02C15/12
Filed: 1948-10-28
Abstract: 646,686. Ball-and-ring mills. BABCOCK & WILCOX, Ltd. Oct. 28, 1948, No. 27982. Convention date, Oct. 31, 1947. [Class 59] A pulverizer of the kind in which a plurality of rolling, grinding elements are disposed in a circular row between members respectively arranged to be rotated and to be anchored against rotation has resilient means arranged to enable the anchored member to move during operation of the pulverizer in requisite manner in relation to the rotatable member, but to anchor the anchored member against rotation. An upper stationary grinding ring 21, 22 is anchored against rotation, centred, and pressed on to grinding balls 20 by four single coil springs 23 arranged around its periphery. The ends of each spring, which lie parallel to the spring axis. are anchored, the lower end 37 in a bore 41 in an extension 40 of the member 22, and the upper end 38 in a cap 44. The cap 44 is keyed on the lower end of a bolt 24 itself keyed, at 55, in a bracket 25 secured to the mill cover. The bolt 24 is adjustable vertically in the bracket 25, to vary the compression of the spring 23, by a nut 58 on its upper threaded end 51. Specification 523,753 is referred to.
Patent GB-697338-A (GB)
Title: Improvements in or relating to paper-making machines
IPC: D21F3/04
Filed: 1950-11-16
Abstract: 697,338. Wet presses of paper-making machines. HEYS, R. C. Nov. 15, 1951. [Nov. 16, 1950] No. 28003/50. Class 96. Upper press rolls 8, Fig. 1, of a wet press of a paper-making machine are supported from a piston 4 at each end of each roll 8, the piston being moved hydraulically or pneumatically by fluid supplied at 15 or 16, above or below the piston in accordance with the setting of a valve 13 actuated by a hand-wheel 17, to increase or reduce the press pressure, or to raise the rolls 8 clear of the lower suction press roll 2. The cylinders 1 may be cast with the main bearing- housing 3, or they may be supported on pedestals &c. The invention is applicable to multiple presses as disclosed in Specification 617,280. Fig. 5 shows a paper web 21 couched at 22, passed through a multiple, wet press 24, 25, 26, 27, picked off by a suction roll 52 and passed to a pre-drying roll 53, from which it may be creped off by a doctor 57. In a modification, a smoothing press is interposed between the pickup roll and the pre-drying roll.
Patent GB-297991-A (GB)
Title: Improvements in steam generators or water heaters
IPC: F22B13/02
Filed: 1927-10-21
Abstract: 297,991. Marriott, H. F. Oct. 21, 1927. Water-tube boilers.-In a boiler having a number of closed-ended tubes C projecting radially from an annular water space A into a central heating space B, the casing D forming the outer wall of the annular water space is provided with a series of hand-holes G so arranged that, by breaking the joints of the casing and rotating it, access is afforded to all the tubes for examination and repair.
Patent GB-1017585-A (GB)
Title: Process for the removal of straight chain hydrocarbons from petroleum fractions
IPC: C10G32/00
Filed: 1962-09-28
Abstract: In the process of Specification 1,017,584 in which straight chain hydrocarbons are removed from petroleum fractions by cultivating a yeast adapted to grow on straight chain hydro-carbons in the presence of the petroleum fraction, aqueous nutrient and an oxygen-containing gas and separating from the product a petroleum fraction of reduced n-paraffin content and a yeast, the yeast is recovered containing hydro-carbon contaminants, e.g. in amounts of about 1%.  After separation of the pasty phase of yeast impregnated with hydrocarbon and aqueous medium, this product is washed to remove traces of surfactant.ALSO:In the process of Specification 1,017,584 in which straight chain hydrocarbons are removed from petroleum fractions by cultivating a yeast adapted to grow on straight chain hydrocarbons in the presence of the petroleum fraction, aqueous nutrient and an oxygen-containing gas and separating from the product a petroleum fraction of reduced n-paraffin content and a yeast, the yeast is recovered containing hydrocarbon contaminants, e.g. in amounts of about 1%.  After separation of the pasty phase of yeast impregnated with hydrocarbon and aqueous medium, this product is washed to remove traces of surfactant.
Patent GB-1384349-A (GB)
Title: Means for displaying ophthalmic spectacles
IPC: A47F7/02
Filed: 1973-06-13
Abstract: 1384349 Displaying spectacles LE PRESENTOIR SEILLER 13 June 1973 [20 Sept 1972] 28112/73 Heading A4T A display device for spectacles comprises a support Z Fig. having a V-shape (in plan) with a notch 3 for the bridge piece of the spectacles, each wing 2a, b having a vertical aperture 5 to receive a leg of the spectacles. Each V-shaped piece is formed e.g. of resilient plastics and has hooks 6 to engage vertical rods 7 which with horizontal bars 8, Fig.3 form a display stand. The supports 2 may be staggered as shown in Fig.3 or arranged in any other desired pattern.
Patent GB-856287-A (GB)
Title: Improvements in or relating to explosive compositions
Inventor: BEAN CECIL MORRIS
IPC: C06B25/06
Filed: 1958-09-02
Abstract: Compounds obtained by condensing one or two molecules of T.N.T with the tosyl derivatives of aromatic hydroxy aldehydes are used as additives to T.N.T. explosives (see Group XXI).  Examples of such compounds are 2, 4, 6-trinitro -8-tosyloxystilbene (prepared by condensation of one molecule of T.N.T. with tosylsalicylaldehyde) ; 2, 4, 6-trinitro-10-tosyl-oxystilbene (one molecule of T.N.T. with tosyl-parahydroxybenzaldehyde) ; 1, 3-bis (2, 4, 6-trinitrophenyl)-2-(2-tosylphenyl) propane (2 molecules of T.N.T. with tosyl-salicylaldehyde) ; and 1, 3-bis (2, 4, 6-trinitrophenyl)-2-(3-methoxy-4-tosyloxyphenyl) propane (from 2 molecules of T.N.T. and tosyl vanillin.
Patent GB-633203-A (GB)
Title: Improvements in and relating to the precipitation and filtration of gold and silver from cyanide solution
IPC: H02M3/10
Filed: 1947-10-22
Abstract: 633,203. Filters; filtering media. HUNTINGTON, HEBERLEIN & CO., Ltd. (Molloy, E. N. H.). Oct. 22, 1947, No. 28234. [Class 46] [Also in Group II] Granular diatomaceous earth and zinc dust are added to gold or silver cyanide solution to precipitate the gold or silver prior to delivering it to a filter. Cyanide solution containing initially only coarse diatomaceous earth of preferably 100-325 mesh is pumped at 8 into a filter casing 1 having a removable top cover 2, and passes in parallel through layers of canvas or metal filter cloth 7 resting on the perforate tops 6 of four horizontal hollow trays 4 supported on brackets 5 and having outlet pipes 9 which embody quick release coupling devices 10. When a layer of filter acid is formed on the canvases, zinc dust is introduced into the solution along with diatomaceous earth. The latter is in the proportion of 25 to 30 per cent of the weight of the zinc dust. Preferably the outlet pipes 9 are led to, or each continued as, a pipe carried above the top of the filter to avoid eddying of the solution within the filter casing. Vacuum is applied to the outlet pipes 9 to dry the deposit before removal.
Patent GB-1015707-A (GB)
Title: Ferromagnetic electric circuit elements and devices including such elements
IPC: H01F1/03
Filed: 1962-07-24
Abstract: Europium oxide, EuO is prepared by heating Eu2 O3 with the amount of elemental Eu required to bring the composition to the EuO stoichiometry at about 1190 DEG  C. for about eight hours. The reaction takes place in sealed quartz tubes and air need not be excluded although the use of a helium atmosphere may be desirable.
Patent GB-298163-A (GB)
Title: Improvements in or relating to watches
IPC: G04B37/12
Filed: 1928-10-03
Abstract: 298,163. Amida, Ltd. Oct. 4, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cases, watch.-The back 7 of a watch 1 carries a mirror 8, facing outwards. In a modification, the back is solid and the mirror is set in a recess therein.
Patent GB-916086-A (GB)
Title: Improvements in and relating to electric immersion water heaters
Inventor: HULSE RAYMOND
IPC: H05B3/78
Filed: 1960-08-17
Abstract: 916,086. Preventing corrosion. SIMPLEX ELECTRIC CO. Ltd. Aug. 22, 1961 [Aug. 17, 1960], No. 28443/60. Class 123 (1). An immersion water heater of the kind having an electric resistive heating element enclosed in a watertight metal sheath has an outer covering of a thermally stable dielectric material of such low porosity as to be substantially impervious and thus to protect the sheath from corrosion and erosion. The covering may be a thermosetting resin such as phenol formaldehyde or a thermoplastic material such as polyethylene or polytetrafluorethylene or a vitreous enamel and may be extended to cover parts of the mounting member or the thermostat container. Alternatively the mounting member may be coated with a corrosion-resistant waterproof paint.
Patent GB-172794-A (GB)
Title: Improvements relating to wall ties
IPC: E04B2/86
Filed: 1920-10-07
Abstract: 172,794. Malcolm, D. Oct. 7, 1920. Wall-ties. -A wall-tie for double slab walls with concrete filling is formed from hoop iron or like material by slitting the ends and bending the tongues c upwardly and downwardly, and also slitting the body at two places between the ends and bending the tongues b upwardly or downwardly.
Patent GB-730563-A (GB)
Title: Improved glues for use on aluminium surfaces
IPC: C09J1/00
Filed: 1951-12-04
Abstract: A non-corrosive, drying glue for use on aluminium surfaces contains one or more metallic silicates, excepting aluminium silicate, which are insoluble in water but can be decomposed by a strong acid.  The glue may contain up to 10 per cent, preferably 0.02 to 5.0 per cent, of its weight of metallic silicate. Suitable metallic silicates are those of barium, cadmium, calcium, lead, cobalt, zinc, iron manganese, nickel and chromium.  In examples, 3 parts by weight of magnesium trisilicate are dispersed in 97 parts of animal glue or 2 1/2 parts in 97 1/2 parts of dextrin glue.
Patent GB-376118-A (GB)
Title: Polishing and brightening apparatus
IPC: B24B41/00
Filed: 1931-10-14
Abstract: 376,118. Polishing vehicle bodies, floors, &c. CASTELLS, M., 7, Rue de Tanger, Paris. Oct. 14, 1931, No. 28481. [Classes 19, 60, and 138 (i).] Apparatus for polishing the paintwork of vehicle bodies, furniture, floors, &c. consists of a casing 1 having end-plates 1a supporting in ball bearings two parallel shafts 2 each carrying discs of flexible material P held by nuts 14 and washers 13. The shafts are driven in opposite directions through gearing 7, 8, 9 by an electric motor M or by a flexible shaft, and the apparatus may be supported by handles thereon or on a carriage. The discs P may comprise circular pieces of textile fabric, for example, flannel.
Patent GB-226655-A (GB)
Title: An improved framework for use in the construction of gas holders
IPC: E04H7/06
Filed: 1923-11-13
Abstract: 226,655. Westwood, W. W. S., (trading as Westwood & Wrights). Nov. 13, 1923. Holders.-A framework for use in the construction of gas-holders comprises triangular girder structures connecting the top curb 9 to a central lattice column 10, pairs of girder structures being arranged in line diametrically. The girder structures consist of an L-sectioned tie-rod 5, a top rod 7 curved to the shape of the gas-holder top, and vertical and inclined rods 6, 8 connecting the rods 5, 7. The rods 5 and attached angle-plates 14 are provided with elongated slots 5<a> for the passage of bolts 13 adjustably securing the rods to the lower flange 10<b> of the column 10. The rim of the lower flange 10<b> is attached to angle-cleats 11 on the rods 5 by bolts 12.
Patent GB-483651-A (GB)
Title: Improvements in the extraction of the valuable content of ores
IPC: C22B3/00
Filed: 1936-10-20
Abstract: 483,651. Treating solids with liquids. DEHN, F. B. (Vacuum Process Extraction Corporation) Oct. 20, 1936, No. 28561. [Class 82 (i)] Disintegrated. ores are extracted with a solvent solution by subjecting the solution and the particles therein to leaching by causing a reduced pressure or vacuum to act thereon in an upward direction only through a horizontal filter, agitating the solution beneath the filter to circulate the particles and cause repeated leaching thereof and to prevent caking on the filter. A tank 1 containing a solution of cyanide houses a rotary agitator 3 and a series of dome-shaped casings 2 of which the lower end of each is closed by filtering material, e.g. canvas, held in place by a wire screen. Each casing is connected by pipes 20 having transparent portions 22 to zinc coils 23 where the metal is precipitated and whence the cyanide so regenerated passes to a tank 31, in which reduced pressure is maintained by a vacuum pump 33. Thereafter the cyanide passes to a tank 25<1> from which it is pumped to a tank 26 whence it is returned as desired to the tank 1.
Patent GB-504188-A (GB)
Title: Improvements in or relating to methods of constructing mosaic electrodes
IPC: H01J29/43
Filed: 1937-10-20
Abstract: 504,188. Cathode-ray tubes. BAIRD TELEVISION, Ltd., and KING, E. B. Oct. 20, 1937, Nos. 28570/37 and 9627/38. [Class 39 (i)] The mosaic electrode is formed by depositing on to a mica &c. base silver from its vapour in the presence of sulphur vapour; the silver deposits as discrete particles. In modifications : (i) a layer of silver is deposited in vacuo on an insulated base and then heated in the presence of sulphur vapour to form discrete particles-; (ii) a thin film of sulphur is formed on the base and silver is deposited thereon by evaporation. Mosaics formed by these methods may have a reddish brown or black film on their surfaces ; this film may be removed by an electric discharge in a hydrogen atmosphere. The silver particles are subsequently photo-sensitized.
Patent GB-1488456-A (GB)
Title: Current driver for inductive load
IPC: G11C11/02
Filed: 1975-06-07
Abstract: 1488456 Switching inductive loads AMPEX CORP 7 July 1975 [15 July 1974] 28579/75 Headings H3B and H3T An inductive load and particularly a senseinhibit line pair 16, 18 of a 3D magnetic core memory is D.C. pulse energized over a transformer 30, the pulse leading edge being steepened by an enhancement voltage obtained by discharging a capacitor 38, and the kick back voltage from the inductive load at the end of the pulse being used to reacharge the capacitor. The D.C. pulse is induced in the transformer secondary winding 32 when a transistor switch Q1 is closed, a circuit being then completed through the primary winding 34 between a source - V 1  and a grounded diode 36. A grounded transistor switch Q2 is also closed during the rise time period of the induced D.C. pulse so as to increase the primary winding voltage by permitting the capacitor to discharge. The D.C. pulse is terminated by switching off transistor Q 1, the capacitor immediately commencing to re - charge over a diode 46 from the induced kick back voltage at the inductive load. Charging is completed from a source - V 2  by closing transistor switch Q3.
Patent GB-609733-A (GB)
Title: Improvements in or relating to cable advancing mechanism and method
IPC: F42B23/00
Filed: 1945-10-29
Abstract: 609,733. Land mines; projectiles. INTERTYPE, Ltd. Oct. 29, 1945, No. 28646. Convention date, June 29, 1944. [Classes 9 (i), 9 (ii) and 77] [Also in Group XXX] A method of advancing a land mine against enemy lines from a base station 10 (Fig. 2) to an advance point A comprises projecting a single cable B from the base station to the advance point and anchoring the cable at the advance point A so as to extend the cable between the base station and the advance point, fastening the base station end of the cable to take-up reel mounted on a frame E for hauling the mine, unwinding a second cable G from a second reel also mounted on the frame and applying the rotation of the second reel to the first reel to wind the first cable thereon and so advance the frame. The projectile A which is connected to cable B wound on reel 11 is of the anchoring kind described in Specification 627,835 and is projected from gun 10 so as to embed itself securely. The free end of the cable is passed through nose 32 of frame E and is attached to drum D (Fig. 6) which is geared by chain 19 to drum H, both being mounted on frame 13, which is slidden into frame E on rail 22 and secured therein by lug 26 which is snapped in by spring 25. When tension is applied to rope G wound on to drum H, rotation of the latter drum causes rotation of the first drum and the carriage moves forward. The nose 30 may be pivoted at 31 so as to wobble and avoid obstables and the cable may be guided by one or two guides 28. Drum H may be divided into sections (Fig. 4a) so as to vary the driving ratio and hence the force propelling the frame forward, and the projectile may be weighted and spiked.
Patent GB-423260-A (GB)
Title: Improvements in cross-cut saws
IPC: B23D61/12
Filed: 1933-10-17
Abstract: 423,260. Cross-cut saws. CAMPBELL, D., Murlaggan, Roy Bridge, Inverness-shire. Oct. 17, 1933, No. 28681. [Class 145 (ii)] A double-handed cross-cut saw has a single middle tooth-group comprising two oppositely directed cleaning teeth 1, and tooth-groups each comprising a single cleaning tooth 2 and oppositely set cutting teeth 3, 4. The end groups comprise cutting teeth 3<1>, 4<1> only. The gaps 5 may be parallel sided, or may diverge outwardly. At the ends of the saws the tooth-groups decrease progressively in height.
Patent GB-513147-A (GB)
Title: Improvements relating to the introduction of foam-stabilising solutions into water streams
IPC: A62C5/00
Filed: 1938-10-03
Abstract: 513,147. Mixing fluids in flow. PYRENE CO., Ltd. Oct. 3, 1938. No. 28710. Convention date, Oct. 2, 1937. [Class 86] [Also in Group XXI] Means for feeding a foam-stabilizing solution from a closed container into a water stream, particularly for making air foam, by using a pressure differential at two points in the stream, comprises a solution container 14 the cover 12 of which carries a Venturi-section tube 29 having inlet and discharge connections 32, 29b for water under pressure. The upper end,of the container is connected by a passage 33, 34 to a point up-stream of the Venturi constriction, and the lower end of the container is connected by a tube 40 to the constriction. The passage 34 includes a baffle device 36, 38 which causes the water to enter the container without turbulence, so that it does not mix substantially with the solution. The container has a charging cap 23 with a vent cock 27, and a discharge valve 15 controlled by a rod 18. If the solution is lighter than water, the connections to the Venturi are reversed. Further, the passage 33 may be connected down-stream of the constriction.
Patent GB-1147288-A (GB)
Title: Rotodynamic pump
Inventor: BAUM ENGELBERT
IPC: F04D3/02
Filed: 1967-06-21
Abstract: 1,147,288. Mixing apparatus; homogenizing pump; comminuting pump. ALFA-LAVAL A.B. 21 June, 1967 [23 June, 1966], No. 28720/67. Headings B1C, B1V and B2A. [Also in Division F1]   A pump suitable for pumpinig and homogenizing viscous fluids containing, fibrous materials, has a pair of opposed : screw, impellers delivering to an intermediate centrifugal impeller. The screw impellers may be, of the double-start type, the centrifugal impeller then having two impelling members 4. The screw threads 3 may increase from zero height at their inlet ends to a maximum height at their outlet ends. The threads have crushing and cutting ,serrations 8, e.g. cemented carbide tips brazed in position, co-operating with carbide ribs 9 extending along or at an angle to the longitudinal direction of the casing 6.