baber/WOPTO huggingface dataset:
Patent GB-879759-A (GB)
Title: Outward flow pressure screen
IPC: D21D5/06
Filed: 1960-04-27
Abstract: 879,759. Centrifugal strainers ; filters. CANADIAN INGERSOLL-RAND CO. Ltd., and BIRD MACHINE CO. April 27, 1960 [May 5, 1959], No. 14825/60. Class 46. A screening device for aqueous paper pulp includes an annular passageway bonded on its outer side by a cylindrical screen 26 supported by a grid of spaced ribs 28. There is an inlet 32 at the upper end for the liquid suspension to be screened and an outlet 36 at the lower end for the rejected material, both the inlet 32 and the outlet 36 being tangential to the annular passageway. An outlet 34 for screened suspension is disposed outwardly of the screen 26 and a device for cleaning the screen 26 having foils 38 and 40 which traverses the annular passageway wherein the inner boundary wall 12 is smooth and imperforate with the width of the passageway equal to 2% to 20% of the diameter of the screen 26. The foils 38 and 40, suspended from arms 44, rotate on radially supported bearings 16 and 18 and are driven through the shaft 20, interconnected with an electric motor by driving belts 24. The reject outlet may, in an alternative embodiment, extend radially outwards of the screen 26.
Patent GB-1422628-A (GB)
Title: Shuttle
IPC: D03J5/00
Filed: 1974-04-04
Abstract: 1422628 Shuttles BANCROFT SHUTTLES & BOBBINS Ltd 4 April 1974 14907/74 Heading D1E A pirn head gripping portion of a shuttle comprises an outer portion of resilient material, e.g. cellular rubber or plastics, and an inner wear resistant portion 26 of lesser resilience. The inner portion 26 may have a vertical groove 34 and a longitudinal groove 38 so that the pirn head is gripped at four spaced apart portions, thus providing a recess for the head rings.
Patent GB-868167-A (GB)
Title: Improvements relating to the electrolytic protection of ships against corrosion
Inventor: HOLDSWORTH MAURICE POOLE
IPC: C23F13/04
Filed: 1959-05-01
Abstract: 868,167. Preventing corrosion. SHELL RESEARCH Ltd. May 1, 1959, No. 14942/59. Class 123(1) In an impressed current cathodic protection system of the kind in which a direct electric current is passed along a trailing aluminium wire 6 coiled upon the drum 5 of a power-driven winch 3 mounted in the stern of the hull of a ship, means are provided for automatically driving the winch 3, regularly at a controlled rate, to pay out the wire 6 and compensate for consumption due to the passage of current. The drum 5 is mounted in bearings 8 through which direct current from a lead 9 is passed to the wire 6 and returned from its submerged end 7 to the hull 4, the magnitude of the current being controlled in accordance with the indications of a reference electrode 11. An electric motor 12, which drives the drum 5 through worm and worm gear 13, 14, is supplied with electric power through two solenoid-controlled, multiplegauged, switches 19, 20 which respectively control the rotation of the motor 12 in the haul and pay-out directions. The solenoids of the switches 19, 20 are controlled by current from a transformer 21 whose secondary includes a wire chute switch 22. To haul in the wire 6 either a local or a remote push-button switch 25 or 26 is pressed to close solenoid holding contacts, break the circuit to the solenoid of the switch 20, and supply current to the motor 12. Paying out can be carried out manually by making a switch 29 to supply current to the actuating solenoid of the switch 20, open the circuit to the solenoid of the switch 19, and energise the motor 12. Automatic pay out is effected by a process timer 31 which is supplied with current through a limit switch 20, a switch 32, which is closable by the timer 31 at regular intervals, periodically completing the circuit to the solenoid of the switch 20 to energise the motor 12. The delay action of a mechanism 34 allows an initial rotation of the drum 5 until the particular cam, of a number of cams 25 on the drum 35, is cleared from a switch 33 which then closes to complete a holding circuit. The drum 5 continues to be driven in the pay-out direction until the next cam 35 opens the switch 33 to de-energise the solenoid of the switch 20 and stop the motor 12. When the tension of the wire 6 being paid out becomes excessive the shaft of the motor 12 is moved axially against a spring 15 to open the limit switch 16. In rough weather it may be expedient to close the switch 32 by hand so that the wire 6 is paid out until a tension sufficient to open the limit switch 16 is reached, the tension of the wire being determined by the adjustment of a spring 15. The current, supplied by a source 36, is returned through an ammeter 38 and an adjustable resistance 37 and also through a parallel path comprising the propeller shaft 42, a slip ring 4, an ammeter 40, and an adjustable resistance 39. Specification 816,417 is referred to.
Patent GB-293679-A (GB)
Title: Tensioning device for anti-skid chains for vehicle wheels
IPC: B60C27/16
Filed: 1928-05-22
Abstract: 293,679. Goodyear Tire & Rubber Co., (Assignees of Burkley, C. J.). Sept. 2, 1927, [Convention date]. Tread bands.-The side-chains 11 of a detachable non-skid band are connected, as by hooks 14, to rubber or like resilient tensioning- rings 13, of smaller circumference than the chains.
Patent GB-560065-A (GB)
Title: Improvements relating to the directional control of air currents produced by fans and other rotary devices, for cooling aircraft engines
IPC: F01P7/02
Filed: 1942-10-28
Abstract: 560,065. Cooling cylinders. CONSTANT SPEED AIRSCREWS, Ltd., and BURTON, P. Oct. 28, 1942, Nos. 15102/42 and 4595/43. [Class 7 (ii)] In cooling an aircraft engine by fan blades f<2> in the spinner e<2>, the air is directed in a straight path through the engine cowling by the provision of a fan k rotating in the opposite direction to the airscrew. The fan may be driven from the crank-shaft m by a gear l, idlers o, double pinions n and a gear q. In an engine driving oppositely rotating airscrews, each airscrew hub has a spinner provided with helical fan blades. Specifications 535,729, 543,219, [both in Group XXXIII], and 559,436 are referred to.
Patent GB-745749-A (GB)
Title: Improvements relating to vacuum driven hair clipping or shearing machines
IPC: B26B19/24
Filed: 1953-05-30
Abstract: 745,749. Horse &c. clippers. WOLSELEY ENGINEERING, Ltd., [formerly WOLSELEY SHEEP SHEARING MACHINE CO., Ltd.]., and DRAKE, R. S. May 26, 1954 [May 30, 1953], No. 15110/53. Class 131. In a shearing or clipping head having a cutter reciprocated relatively to a comb by a vacuum operated rocker, a hair-excluding elastic closure, with a throat engaging the rocker, is fitted in the rocker chamber between the cutter and the forward end of the chamber. As shown, in a clipping machine as disclosed in Specification 515,915, in which a vane D, secured to a lever E engaging a slot in the rocker F to reciprocate the cutter G, is oscillated in a chamber B by the alternate application of vacuum and atmosphere to opposite sides of the vane by a valve at the rear end of the clipper, a channel-section flexible rubber closure 1 comprising a web 2, a front wall 5 with a throat 6 engaging the rocker, and side flanges 4 is secured in the rocker chamber C by screws passing through tapped apertures 11 in a channel-section, metal bridge 9 and aligned apertures 12 in the flanges 4. Teats 7 on the closure seat against the forward corners of the rocker chamber and flexibility-increasing ribs 8 are provided. The rear end of the clipper is provided with openings 19 to the atmosphere which are protected by a detachable gauze filter 20 supported by a cap 21 removably secured to the screw-threaded end of a suction pipe 18.
Patent GB-529080-A (GB)
Title: Improvements in and relating to valves or cocks
IPC: F16K5/16
Filed: 1939-05-20
Abstract: 529,080. Valves. VERVOORT, B. May 20, 1939, No. 15111. Convencion date, April 17. [Class 135] Pressure on the conical plug B by the stuffing-box packing is prevented by a ring E screwed into the casing. Alternatively it may be supported in a recess in the casing, washers being interposed as required. Plugs are loosened by turning an additional handle G which engages a fixed nut member by means of a fine thread and is formed with a hammershaped lower end. A removable base D closes the lower end of the casing. Remote control of the handles F, G may be provided.
Patent GB-875094-A (GB)
Title: Improvements in or relating to stereophonic radio and like transmission and receiving systems
IPC: H04H20/88
Filed: 1960-04-29
Abstract: 875,094. Transformers. TELEFUNKEN G.m.b.H. April 29, 1960 [May 2, 1959; Aug. 29, 1959], No. 15112/60. Class 38 (2). [Also in Group XL (c)] A transformer comprises two toroidal ferrite cores AF separated by an air gap AL, earthed end-plates AS 2 , AS 3 , separate secondary windings AW 2 , AW 3  which are shielded from primary winding AW 1  by an earthed foil screen AS 1 , a thick, preferably perforated, insulating layer being included between windings AW 2 , AW 3  and screen AS 1 . The transformer is described as part of a radio receiver in a stereophonic transmission system and is designed to eliminate capacitive coupling between winding AW 1  and windings AW 2 , AW 3 , switching from one sound channel to the other being effected by means of an alternating voltage, having a frequency of 40 kc/s. for example, applied to winding AW 1 .
Patent GB-728146-A (GB)
Title: Improved jack device
IPC: E21D15/54
Filed: 1952-06-16
Abstract: 728,146. Lever load-handling machines. MOXON (MINING), Ltd., G., and MOXON, J. E. March 30, 1953 [June 16, 1952], No. 15119/52. Class 78 (3). [Also in Group X] In a rack-and-ratchet jack mounted on a strut which may be wedged between a pair of opposed surfaces, e.g. a mine roof and floor, to form a reaction member, the jack is mounted on the strut for rotary movement about the longitudinal axis of the rack bar. The jack comprises a rack 23 slidable through a housing 21 by a lever 28 pivoted at 27 to a link 26 which is pivoted at 25 to the housing; a pair of spring- pressed pawls (not shown) being provided in the casing to sustain the load whilst the pin 29 is disengaged from the rack teeth. A member 34 is provided to render the pawls inoperative. A cylindrical portion 19 on the housing 21 is rotatably mounted between a pair of half bearing members 16, 17 on the floor engaging foot 11 and flanges 22 on the portion 19 prevent it moving axially. The load-engaging head 48 is mounted on the rack for universal movement about axes 50, 52. Pivoted to the housing at 14 is a tubular member 13 provided with pairs of holes 39 co-operating with a pin 40 which adjustably supports a rod 12 provided with a roof-engaging head 42, sliding movement of the rod in the tube being limited by a pin 46 engaging a slot (not shown) in the rod. The strut 12, 13 may be wedged between a pair of horizontal surfaces instead of the roof and floor.
Patent GB-677674-A (GB)
Title: Improvements in rotary pumps or engines
IPC: F01C1/44
Filed: 1950-06-16
Abstract: 677,674. Rotary engines and pumps. BOURQUIN, E. J. June 16, 1950 [June 17, 1949], No. 15170/50. Class 110(ii) The engine or pump has an eccentric rotor 29, in an oval casing 23, and hinged vanes 33 which may have plain ends or rollers 42 (preferably of hardened steel) which are restricted by friction from rolling freely on their pins 43. Recesses in the rotor allow a vane to lie on the peripheral line while passing the nearest portion of the casing bore. An adjustable plate 46, Fig. 7 (not shown), has one edge bearing on the vane roller, to prevent free rotation thereof. Pairs of vanes, with their pivots close together, allow a pump to be reversible. Cooling channels may be provided in the end walls 22 and casing ring 25. A shaft 27 is supported in journals 28 which may be of phosphor bronze; ball or roller bearings may be used. Packing pieces 34, 36, S, are pressed axially by springs 35, 37, S<SP>1</SP>. The vane pivots are held in their sockets by mountings extending over 180 degrees to prevent their withdrawal from the rotor. Lubricating ducts are provided in the shaft and vane sockets. As an internal-combustion engine, two rotors may be arranged side by side, one a compressor and one an engine.
Patent GB-152086-A (GB)
Abstract: 152,086. Murray, J. Erskine-. July 3, 1919. Thermionic relays; electric oscillations, producing.-In low-frequency amplifiers, for use in receiving or transmitting circuits, of the type in which a series of valves is connected in cascade by transformers, the valves are arranged so that their characteristics are graduated, the characteristic of any one valve being higher than that for the valve next preceding it. The voltage applied to the anode circuits of the valves may be graduated, that is, the voltage for the first valve is lowest, and for the last valve is highest, with intermediate increasing values for intermediate valves. Alternatively, the current for heating the filaments is graduated in like manner. Specification 131,362 is referred to.
Patent GB-990960-A (GB)
IPC: B22D27/04
Filed: 1964-04-13
Abstract: An aluminium alloy contains 4.6% zinc, 3.3% magnesium, 0.65% copper, 0.32% iron, 0.3% manganese, 0.17% silicon, 0.18% chromium and the remainder aluminium.  0.1% titanium may also be added to the above constituents, if required, to promote nucleation.
Patent GB-348887-A (GB)
Title: Improvements relating to sugar casters and like ingredient delivery containers
IPC: A47G19/24
Filed: 1930-05-20
Abstract: 348,887. Sugar &c. distributers ; stoppers. HITCHINSON, E., 3, Legge Lane, Birmingham. May 20, 1930, No. 15432. [Classes 18 and 125 (iii).] A sugar &c. caster or container comprises a glass body a with a screw-threaded neck on which can be screwed a sheet metal collar b with a lead, antimony, or other soft metal, lining c, and a cap d which engages over projections on the collar b by means of bayonet slots. The collar is flanged at b<1> and the lining c may be fastened therein by a press punch, soldering, riveting, &c. The cap d is perforated and may engage over the collar by a rotary movement in the opposite direction to that by which the collar engages over the body.
Patent GB-670795-A (GB)
Title: Improvements in or relating to centre filling apparatus for use in the manufacture of sweets
IPC: A23G3/20
Filed: 1949-06-10
Abstract: 670,795. Confectionery. SANDALL PRECISION CO., Ltd., and BARKER, A. W. June 12, 1950 [June 10, 1949; Jan. 10, 1950], Nos. 15519/49 and 629/50. Class 28 (i). [Also in Group XXVIII] In the manufacture of boiled sweets having soft, plastic or liquid centres, a reciprocating pump, for feeding the centre filling into the batch of plastic sugar, has a cylinder 7 communicating with a reservoir 12 and containing a piston 8 actuated, through a spring 31 and rod 23, by a radial cam 24 which is driven, through a belt 42, chain or gearing, by an electric motor 40. The cam has a groove 38 engaged by a roller follower 37 on the rod, and shaped to effect a quick return motion for the piston. The stroke of the latter is varied by adjusting the vertical position of the fulcrum 43 of the rod. and a calibrated scale is provided to indicate the stroke. The piston delivers through a ball valve 65, which is readily removable for cleaning, to a flexible pipe. A heating chamber containing a steam, gas or electric heater may be provided in the pump body 4. An annular chamber 20 is supplied with water for cleaning the piston.
Patent GB-1527336-A (GB)
Title: Ornament for spectacle frames
IPC: G02C11/02
Filed: 1977-04-14
Abstract: 1527336 Spectacle frame MARWITZ & HAUSER 14 April 1977 [14 April 1976] 15548/77 Heading G2J An ornamental plate having a heat-sensitive adhesive layer on its flat back is secured to the side piece near the hinge joint.
Patent GB-792269-A (GB)
Title: Improvements in or relating to holdalls or the like
Inventor: WYCHERLEY WILLIAM JAMES
IPC: A45C13/36
Filed: 1955-05-31
Abstract: 792,269. Holdalls and like bags. SLAZENGERS, Ltd. May 31, 1956 [May 31, 1955], No. 15578/55. Class 133. A reinforcement for the upper part of a bag consists of a rod 4 having the ends socketted into elements 8 secured to the bag. The elements may have integral eyes 9 and be attached to the bag by riveting. The rod may be of spring steel and be enclosed in a pocket 5. It passes through handle loops 12. The invention may be applied to flap closed bags, as shown, or to the meeting edges of cricket bags or the like. An additional external reinforcing strip (not shown) may be provided over the rod.
Patent GB-1432315-A (GB)
Title: Device for filling upright botteles with a liquid
IPC: B67C3/16
Filed: 1974-04-09
Abstract: 1432315 Bottling STORK AMSTERDAM BV 9 April 1974 [25 April 1973] 15588/74 Heading B8T A device for filling bottles 10 comprises a liquid container 1 at sub-atmospheric pressure which supplies liquid to a plurality of filling valves 2, each consisting of a liquid valve 3 and a central gas pipe 4 having two transverse channels 5, 11, a vertically slidable supporting table 6 forming part of a structure moving in the arrowed direction, and a stationary runway 9 having a bearing surface. In use the filling of the bottle 10 ceases when the liquid level reaches the upper channel 11 preventing gas escaping from the space A into the container 1 via the pipe 4. As the roller 8 contacts the inclined part 12 of the runway 9, the table 6 and bottle 10 descend and thus atmospheric pressure in the space A pushes liquid up the pipe 4 until the liquid level reaches channel 5. This ensures a constant level in each bottle 10, independent of the after-drop from the valve 2.
Patent GB-483949-A (GB)
Title: Conveyors
IPC: B65G17/34
Filed: 1937-06-05
Abstract: 483,949. Endless chain conveyers. PERKINS, F. P. June 5, 1937, No. 15668. [Class 78 (i)] In a conveyer C of the kind in which the load carrying plates 30 are formed with corrugations 31, an unloading structure comprising a plurality of rods 33 is provided across which the articles are pushed to the conveyers 165, 166. Each rod lies within a corrugation and has a bevelled inner end 34. The outer ends of the rods are secured to an angle member 35. Each plate 30 is secured to flanges 27 formed on the legs of the T-shaped chain links 24 by threaded studs &c. 19.
Patent GB-156708-A (GB)
Abstract: 156,708. F÷ge, H. Feb. 5, 1918, [Convention date]. Casings.-A screw fan or ventilator a has a casing c which extends from the suction side to the position of the smallest cross sectional area of the air current on the delivery side. It is there bent inwards as shown until it coincides with the extreme outside diameter of the screw. In a modification. the casing may be contracted as indicated by the dotted line d. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a screw fan tapered to fit the conical part of the casing. This subject-matter does not appear in the Specification as accepted.
Patent GB-273478-A (GB)
Title: Improvements in and relating to locomotive "platform" trolleys, trucks and other vehicles
IPC: F28G11/00
Filed: 1926-06-22
Abstract: 273,478. Grist, G. June 22, 1926. Motor forecarriages.-In a vehicle of the kind having a road wheel driven in one direction only from the power unit, reversal of travel of the vehicle being provided for by turning the wheel axle through 180‹ about a vertical axis, the wheel is carried by a framework having a disc-like bearing ring 16 which is in engagement with a coaxial ring 15 fixed to the chassis frame, and means are provided to maintain the said bearing rings co-axial, such means being free to rotate relatively to the wheel-carrying framework. In the construction shown, the rings 15, 16 are kept. co-axial by an inner loose ring 17, or, rollers carried by the ring 16 may be used. The engine 29 is carried by the framework 20 fixed to anglestrips 18, 19 secured to the ring 16. The road wheel 27 is mounted on an axle carried by a spring-controlled U-shaped member 23 pivoted to the framework 20, and is driven through a clutch 31 and the chain gearing shown. The ring 15, which rests on the ring 16, is secured to the side frame members 10, and separation of the rings 15, 16 is prevented by angle-strips 21, 22 secured to the framework 20. The fore-carriage, is steered by means of a handle 35.
Patent GB-742417-A (GB)
Title: Improvements in parachute canopy construction
IPC: B64D17/02
Filed: 1953-06-08
Abstract: 742,417. Parachutes. QUILTER, Sir J. R. C., and G. Q. PARACHUTE CO., Ltd. June 4, 1954 [June 8, 1953], No. 15715/53. Class 4. A parachute canopy comprises a number of segments which are provided along their edges with loops 25 formed by webbing 24 laid zig-zag on an edging tape 23 and stitched thereto. The loops of adjacent segments are connected by a cord 19 which may be one of the rigging lines. Each segment may comprise a plurality of gores and the edge connection described facilitates production and the repair of a damaged canopy. When the cord 19 is not a rigging line means may be provided to vary its tension to enable the gap between adjoining segments to be varied for the purpose of spilling air. The canopy comprises a vent similar to that described in Specification 722,442 except that the vent ring 29 for securing the seam tapes 15 is formed in four segments 31 detachably connected by bolts 33, each portion of the ring being connected to its respective segment of the canopy.
Patent GB-710275-A (GB)
Title: Improvements in or relating to devices for counting leaves or sheets in a pile or packet
IPC: G06M9/02
Filed: 1951-07-03
Abstract: 710,275. Counting-apparatus. ROSSWALL, A. E. Oct. 3, 1952 [July 3, 1951], No. 15729/51. Class 106 (1) A device for counting sheets comprises a number of suction nozzles and means for moving them in the same closed path and for rocking them so that they are brought successively beneath the corner of a sheet and so that one nozzle flexes one sheet to allow the next nozzle to enter the gap so formed to engage the next sheet. As shown, two nozzles are provided so that each cycle of operation corresponds to a count of two. The cycles are counted by a counter (not shown). Four successive positions of one nozzle 12 having a suction outlet on its upper surface are shown. The nozzle is carried by a shaft pivoted in the end of a connecting rod 15, the other end of which is pivoted to a crank pin 17 offset from a shaft 18, and which is suspended from a fixed point 29 by links 28. Projecting laterally from the shaft carrying the nozzle and secured therto is a rod 30-slidable through a rod 31 pivoted longitudinally. The other nozzle is similarly moved by a second connecting rod operated in antiphase by the shaft 18. The nozzles may alternatively be guided by cam means, in which case each may be rocked by the engagement of a pinion secured thereto with a toothed track. The whole mechanism may be arranged to climb the pack of sheets as described in Specification 688,251 or the support for the pile may be gradually lowered. Reference has been directed by the Comptroller to Specification 557,086.
Patent GB-877403-A (GB)
Title: Improvements in or relating to the production of organic nitrogen compounds
IPC: C07D233/32
Filed: 1960-05-04
Abstract: 2-N-b -Hydroxyethyl-imidazolidone and N-b -hydroxyethylethylenediamine are produced simultaneously by reacting 2-aminoethanol with substantially one molecular equivalent of carbon dioxide in the presence of a quantity of water at most equal to the weight of the 2-aminoethanol under a pressure of at least 50 atmospheres and a temperature of at least 200 DEG C.  The two products may be separated from each other by fractional distillation under reduced pressure.