baber/WOPTO huggingface dataset:
Patent GB-541616-A (GB)
Title: Improved cooling means for electrical induction apparatus
IPC: H01F27/08
Filed: 1940-12-02
Abstract: 541,616. Cooling reactors etc.; induction motors. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 2, 1940, No. 17137. Convention date, Dec. 1, 1939. [Classes 35 and 38 (ii)] A reactor or other static inductive apparatus is cooled by a fan driven by an induction motor comprising an unwound rotor and a stator consisting of pole-pieces provided with shading coils and so shaped and located as to be energized by the flux of the apparatus to be cooled. In an air-cored reactor, Fig. 3, comprising air-spaced turns 21 supported by radial members extending between outer and inner concrete rings 23, 24, the fan 30 is located in the centre opening and is mounted on the shaft of rotor 34 which is arranged between pole pieces formed of laminated members 32, 33 extending as shown so as to collect part of the flux of the reactor. The fan and motor may be mounted in other positions within the field of the reactor either inside or outside of the winding structure, the stator elements being shaped accordingly. Specification 523,926 is referred to. The Specification as open to inspection under Sect. 91 comprises also an iron-cored reactor, Fig. 13 (Cancelled) in which one of the yokes is partially cut away to form stator poles between which the rotor 75 of the fan motor is mounted. This subject-matter does not appear in the Specification as accepted.
Patent GB-855171-A (GB)
Title: Improvements in or relating to resilient compression devices for windings of transformers and choke coils
Inventor: ZURICH WOLFGANG
IPC: H01F27/30
Filed: 1957-05-30
Abstract: 855,171. Transformers and inductors. TRANSFORMATORENWERK K. LIEBKNECHT VEB. May 30, 1957, No. 17162/57. Class 38 (2). A device for taking up shrinkage of the windings of a transformer comprises a spring or springs 11 disposed between a thick plate 1 secured to a magnetic core 2 and a thin plate 10 resting on end blocks of the windings 8, 9. The springs may be of the plate or spiral type. Wedges 7 rigidly brace the plate 1 against the core. In assembly the plates 1 and 10 are screwed together until the winding is properly assembled, whereupon the screws are removed allowing the springs to be effective.
Patent GB-732365-A (GB)
Title: Steroids
IPC: C12P33/00
Filed: 1952-07-08
Abstract: The invention comprises 11a -hydroxy-4-androstene - 3,17 - dione and the preparation thereof by bringing 4-androstene-3,17-dione into contact with oxygenating substances produced by a growing fungus of the genus Rhizopus, e.g. Rhizopus arrhizus or Rhizopus nigricans, under aerobic fermentation conditions.
Patent GB-832927-A (GB)
Title: An improved inking mechanism for rotary printing machines
IPC: B41F31/08
Filed: 1957-05-30
Abstract: 832,927. Rotary pumps. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. May 30, 1957 [July 20, 1956], No. 17200/57. Addition to 814,193. Class 110 (2). [Also in Group XVI] In an inking mechanism for a rotary printing machine as claimed in the parent Specification, the pump vanes 3 are urged outwardly by compression springs 4 in recesses 5 in the vanes, and each vane has an external groove 6 through which the vane compartment 7 communicates with the pump displacement chamber 8. The carriage 1 is adapted for movement in a direction perpendicular to the axis of the rotor.
Patent GB-848099-A (GB)
Title: Heat exchange apparatus
IPC: B64D37/34
Filed: 1957-05-30
Abstract: 848,099. Tubular heat exchangers. WILLIAMS, W. P. (United Aircraft Products Inc.). May 30, 1957, No. 17244/57. Class 64(3)  Apparatus in which a heat transfer surface separates two heat exchanging fluids and which includes means for by-passing around said surface all of one of said fluids in excess of that required for a predetermined rate of heat transfer, includes means responsive to the temperature of said one fluid passed in contact with the heat transfer surface or a mixture of the by-passed fluid and said one fluid passed in contact with said heat transfer surface, for controlling the rate of flow of the other fluid over the heat transfer surface. In the apparatus shown, liquid fuel flows through the tubes 24 and engine oil flows over the tubes in a meandering path defined by baffles 37, 38. A relatively large conduit 27 extends through the tube assembly and is normally closed at its outlet end by a spring-pressure actuated valve 28 which opens when the fluid pressure drop through the tube exceeds a predetermined maximum value. The fuel on leaving the tubes passes into an outlet header 26 and thence to a chamber 52 of valve housing 44 mounted on the, shell 11 which surrounds the tube assembly. In the chamber 52 the fuel passes over a thermally sensitive element 72 which above a predetermined minimum temperature causes movement (to the right as viewed in the drawing) of a plunger 71 which movement, acting upon the valve stem 61, tends to close oil inlet valve 68 and to open a bypass valve 64 thus interconnecting the oil inlet and outlet chambers 48, 49 in the valve housing and preventing flow of oil to the oil inlet port 31 in the shell 11. The by-pass valve 64 is slidable in the valve stem 61 and opens aaginst the action of springs 65, 66, independently of the action of the thermal element should an excessive pressure differential occur between the chambers 48, 49, e.g. when starting the engine. Reference has been directed by the Comptroller to Specification 799,571.
Patent GB-1219795-A (GB)
Title: Nuclear reactor refuelling installation
Inventor: CHEVEREAU GERARD
IPC: G21C19/10
Filed: 1968-04-10
Abstract: 1,219,795. Fuelling reactors. COMMIS SARIAT A L ENERGIE ATOMIQUE. 1( April, 1968 [21 April, 1967], No. 17268/68 Heading G6C. A fuel handling arrangement for transferring spent elements from the core 12 of a gas-cooled heavy water moderated reactor to a pond 124 and for introducing new elements comprises a facility A disposed in a space 18 in the pressure vessel 10 above a shielding slab 20. The facility A includes a beam 22 rotatable about the axis of the reactor and supporting a carriage carrying a grab, whereby the grab may be aligned with a selected servicing channel 14 and transfer fuel elements from the core 12 into a thimble (not shown) disposed in a pick-up pit 90. The drive motors for the beam, carriage and grab are contained in a dome 66. An ancillary enclosure 92 contains a lock 100 bounded at one end by valves 96, 98 and at the other end by a valve 104, this lock being in alignment with the pit 90 whereby a grab controlled by a winch 102 may raise the thimble through guide sleeves 95, 94 into the lock, the valve 104 being closed. The thimble is retained in the lock 100 by a latch so that the grab may be disconnected and moved laterally out of alignment with the lock. The valves 96, 98 are closed, the gas pressure in lock 100 is reduced to atmospheric, valve 104 is opened and a grab controlled by a winch 106 is lowered through a guide sleeve 110 to engage the thimble. The winch 106 is supported by a carriage on rails 108 so that the thimble may be lowered through a discharge channel 112 into a receptacle carried by a carriage 118 running on rails 116. Undamaged fuel elements are transferred one-by-one from the carriage 118 by means of a winch 130 through a passage 126 into a duct 133. The duct 133 is carried by an arm movable about a vertical axis whereby the duct may be brought beneath a grab carried by a travelling bridge 132 and the fuel element taken to a selected part of the pond 124. Damaged elements are placed in a flask 140 by means of a winch 135. New fuel elements are introduced into the receptacle carried by carriage 118 by means of a winch 142 situated above a fuel element store 144.
Patent GB-139992-A (GB)
Title: Improvements in or relating to ovens or the like for domestic fire places
IPC: F24B13/00
Filed: 1919-07-10
Abstract: 139,992. Lyon, J. W. July 10, 1919. Ovens.-The saddle for protecting the lower corner of a Yorkshire-range oven adjacent to the fire is made with a side cheek, whereof the part b is embedded in the brickwork, and the part f is integral with an horizontal part d fitted slidably in, and shown partly withdrawn from, one or more dovetail grooves c in the plate a, so that the part d, f may be withdrawn and renewed.
Patent GB-1474145-A (GB)
Title: Reducing the contents of heavy metals in solution
IPC: C02F1/52
Filed: 1975-04-25
Abstract: For the purification of effluents containing heavy metal compounds, these waters are contacted with an element selected from those more electropositive than hydrogen. The reduction reaction must be carried out at a pH less than or equal to 3. The water to be treated is caused to flow through one or more columns filled with the more electropositive element in the form of granules, beads, strips, shavings or any form compatible with the dimensions of said column. If, for example, the waters to be treated contain chromates, the element used is iron. In this case, the exit pH from the reduction system is kept below the value corresponding to that at which the iron is precipitated as hydroxide. In this way, purification of the waters is achieved with a reduced consumption of more electropositive elements, in this example, iron.
Patent GB-1427927-A (GB)
Title: Hardener for urea-formaldehyde resin foams
IPC: C08J9/00
Filed: 1972-04-14
Abstract: 1427927 Hardeners for urea-formaldehyde resin foams BRITISH INDUSTRIAL PLASTICS Ltd 16 April 1973 [14 April 1972] 17432/72 Addition to 1344261 Headings C3C C3R A foaming hardener for use in the production of urea formaldehyde resin foams comprises an aqueous acidic solution of a foaming agent containing up to 25 wt. per cent of urea and dipropylene glycol in such an amount to give on dilution of the hardener to the level used in the foam production 0À2-1À0 wt. per cent of the glycol on the diluted hardener. The foaming hardener, after dilution, is aerated to produce a foam into which the urea-formaldehyde resin solution, which may be foamed, is mixed to produce a urea-formaldehyde resin foam. The foaming agent may be an alkyl aryl sulphonate or sulphonic acid which may be mixed with phosphoric or oxalic acid and the glycol, urea and water to form the hardener.
Patent GB-1463969-A (GB)
Title: Process for making a substantially closed fabric by compressive redistribution of the filaments of at least some yarns of an open mesh fabric
IPC: D06C15/02
Filed: 1975-04-28
Abstract: 1463969 Closed mesh fabrics; hot pressing fabrics to reduce the open area BAY MILLS Ltd 28 April 1975 [26 April 1974] 17465/75 Headings D1K D1R and D1S A "closed" fabric having an open area of not more than 35% of the area of the fabric is formed by compressing a woven or non- woven fabric having an open area of at least 70%, the starting fabric comprising at least one layer of warp yarns constituting a first group of yarns and at least one layer of fill yarns arranged at an angle to the warp yarns and constituting a second group of yarns, the yarns of both groups having a coating of at least 5% by weight of a thermoplastic material of lower softening point than that of the yarns, the denier per inch of at least one group of yarns being at least 4000 and the yarns of at least this group each containing at least 20 filaments and having 0 to 1 turns per inch of twist. Preferably the starting fabric comprises three superposed arrays of parallel yarns, the yarns of one array being perpendicular to those of the other arrays, the yarns being identical and all having the properties specified above. The filaments may be rayon, nylon, polyester, polypropylene or glass. Each yarn may have a denier of at least 200. In the example three layers of 7¢ polyester yarns/inch, each yarn being of 1000 denier, 192 filaments, having 0.035 turns per inch and a 53% by weight polyvinyl chloride coating formed a fabric which was 48% open. It was passed at 18 ft./minute over preheating roll 18 at 260‹F then between the nip formed by steel roll 15 at 360‹F and cotton roll 16 which was maintained at 160‹F by coating roll 17. The heat and pressure soften the polyvinyl chloride so that the yarns are flattened. The fabric is maintained in contact with roll 16 long enough for the polyvinyl chloride to harden and thus bind the filaments in their new positions. The open area of the fabric is reduced by 96% and its thickness by 56%. The coating may alternatively be polyvinyl acetate or low melting polyester.
Patent GB-979552-A (GB)
Title: Improvements in or relating to photosensitive printing plates
Inventor: SMITH ALBERT HENRY
IPC: A23L1/00
Filed: 1961-05-12
Abstract: 979,552. Photosensitive materials. PRINTING, PACKAGING & ALLIED TRADES RESEARCH ASSOCIATION. May 7, 1962 [May 12, 1961], No. 17469/61. Heading G2C. A light sensitive composition for use in printing plates comprises ammonium dichromate and a polymeric vinyl compound comprising acylate groups, hydroxyl groups and free maleic acid semi-ester groups. alkai-metal-substituted maleic acid semi-ester groups or amine-substituted maleic acid semi-ester carboxyl groups. The free or substituted maleic ester groups being at least 25% of the substituents. This composition is coated in a metal plate, preferably aluminiuin or zinc pre-treated with a cronak solution, exposed and the unhardened areas washed off, etched and used as a lithographic plate. The preferred vinyl polymer is one of formula in the free acid or amine salt form wherein x:y:z is 60:25:15 and n is 110 to 190. The composition may also contain an alhyl vinyl ether/dibasic acid copolymer preferably methyl vinyl ether/maleic anhydride copolymer. Specification 615,778 is referred to.
Patent GB-680848-A (GB)
Title: Improvements in magnetic workholders
IPC: B23Q3/154
Filed: 1950-07-12
Abstract: 680,848. Magnetic work-holders. HITCHCOCK, S. I. July 12, 1951 [July 12, 1950], No. 17483/50. Class 60. [Also in Group XXXV] A magnetic work-holder comprises a block built up of laminations 1, Fig. 2, of magnetic material separated by laminations 2 of non- magnetic material, the block being divided into halves in a vertical plane at right angles to the laminations by non-magnetic material 5, Fig. 1, so as to form two pole-pieces to co-operate with a diametrically magnetised permanent magnet 7 mounted for angular movement between operative and inoperative positions. The laminations 1, 2 may be of soft iron and aluminium respectively. They are secured together by bolts 3, which may be non-magnetic, and tapped inserts 4. The two pole-pieces are connected by bolts 6 of aluminium or other non-magnetic material. The magnet 7, which may be built up from laminations formed from a hard magnetic alloy, is provided with a bore lined for half its length with white metal 13 which is extended into the other half of the bore by splines on a shaft 9 when the latter is driven into the magnet. This shaft is mounted in bearing bushes 10 supported by non-magnetic end caps 11 and carries a lever 14 which co-operates with fixed stops to determine the operative and inoperative positions of the magnet. The poles of the latter are formed as two arcuate faces which when positioned opposite the pole-pieces provide flux paths E through the work-piece C and through the surface supporting the block. The underside of the block is cut away at 16 to restrict the flow of flux into the supporting surface. Rotation of the magnet through 90 degrees to the inoperative position produces the flux paths D. To hold flat work-pieces an auxiliary work-holding surface (not shown) is provided. This also consists of alternate laminations of non-magnetic and magnetic material arranged to form a flat surface and adapted to bridge the sloping faces of the block with its laminations perpendicularto those of the latter. The block may have its faces case-hardened and accurately machined to enable it to be used for marking off. A pillar.(not shown) adapted to screw into one face of the block may be used to carry a dial gauge, scriber or other instrument. Specifications 576,710 and 578,075 are referred to.
Patent GB-807472-A (GB)
Title: Improvements in or relating to apparatus for washing and disinfecting receptacles
Inventor: FARNSWORTH DAVID
IPC: B08B9/28
Filed: 1956-06-06
Abstract: 807,472. Washing bed-pans, &c. SUMERLING & CO. Ltd. June 8, 1957 [June 6, 1956], No. 17491/56. Class 26. In apparatus for washing and disinfecting receptacles having a chamber closable by a door, means for holding one or more receptacles therein and inlet and outlet pipes for fluids applied by nozzles at their ends, flow of fluids thereto is controlled by valves operated by motor means put into operation by a device which causes the door to be locked and to stay locked until the end of a predetermined cycle. In the form shown a chamber 1 has a removable door 4, rods 16 mounted thereon for holding a bed-pan, arms 17 for holding bottles and inlet pipes 21 and 20 for washing and disinfecting fluids, having nozzles 22 and 23, a motor 34 operating in sequence two valves to control the flow of the fluids and switched on by pushing in a rod 32 on the control panel 33, which also rotates bell-crank lever 38 about pivot 39 by collars 40 thereon to push down the spring-actuated rod 41 which contacts a flat 44 on a bush 45 rigid with the shaft 31 of a lever 28, so that the closed door 4 is kept locked until the cycle of operations is over. It is previously locked by swinging the lever 28 to wedge on a tapered cam 30 on the door face. On rotation of the wheel 47 on a cam shaft 35, a dog 46 thereon engages the rear collar 47 to return the rod 32 to the outer position, and the motor is also switched off. On the shaft 35 are cams 36, 37 each operating a valve. For rotation by hand the cam shaft 35 may be declutched from the motor 34 by a cranked arm 60 swung about shaft 35, on which an idler gear 58 between the driving gear 57 and the driven gear 59 on the shaft 35 is mounted, by means of a knobbed handle 61 on the panel 33. To lock the arm 60 in the clutching or declutching position of the drive the handle 61 is spring- loaded to reciprocate in a sleeve 64, its end 65 engaging in a recess in a projection 66, mounting a bolt 67 traversing slot 68 to limit movement of the arm 60. In manual operation shaft 35 is driven through a gear train and a shaft 51 (having a removable handle) with which may be incorporated an indicator dial 75, usable also when the motor 34 is running. The door 4, pivoting about links 13 and 14, hinged to the opening 2 by trunnions 5, has flanges 7, and a counterbalancing weight 8 to assist in automatic closing. It is opened by a pedal 9 on an arm 10 and a lever 12 between the links 13 and 14, the arm 10 pivoting on the frame 3, a microswitch 48 being made to act at the same time to prevent the apparatus from operating, e.g. through the motor 34. The pedal mechanism may have a counterweight 49. The chamber and its interior fittings are preferably of stainless steel. According to the Provisional Specification the door may be automatically closed by a spring mechanism or the entry of water and steam into the apparatus may be boosted with pumps.
Patent GB-117022-A (GB)
Title: Improved Egg Food Preparations.
Inventor: CUTLER MORRIS
IPC: A23L15/00
Filed: 1917-11-28
Abstract: 117,022. Cutler, M. Nov. 28, 1917. Egg preparations.-Liquid obtained by boiling linseed in water is added to liquid whole egg, or to the yolk only, or to egg in a powdered form.
Patent GB-801141-A (GB)
Title: Improvements in or relating to vehicles for carrying out public works
IPC: E02F3/36
Filed: 1955-06-17
Abstract: 801,141. Motor vehicles. ETABLISSEMENTS BELINGARD. June 17, 1955 [July 29, 1954], No. 17607/55. Classes 79(1) and 79(4) On each side of a vehicle engine 10 and transmission members 6, 7, 9, 'but within the wheel base, is disposed a longitudinal frame member 14 having at the rear a downwardly curved profile 15 ending in a notch 48 and being traversed by vertical and horizontal perforations 22. As shown, the longitudinal frame members 14 are connected by a front transverse member 13 to which the steerable front axle is pivoted and detachably connected by a longitudinal pin 4. A unit comprising the engine 10, the clutch and flywheel casing 9, the change speed gearing 7, the differential housing 6 and rear axle casing 5 for driving wheels 2, is connected to the frame. The notches 48 and perforations 22 serve for the attachment of various equipment, such as a platform, Fig. 3 (not shown) dumper, Fig. 4 (not shown), truck pusher, Fig. 5 (not shown), crane, Fig. 6 (not shown), loader, Figs. 7, 17 and 18 (not shown), elevator, Fig. 8 (not shown), bucket handling equipment, Fig. 9 (not shown), sweeper and water tank, Fig. 10 .(not shown), skimmer, Fig. 11 (not shown), multi-bucket dumper, Figs. 12 and 13 (not shown), and dumper and loading shovel combination, Figs. 14 to 16 (not shown).
Patent GB-497376-A (GB)
Title: Improvements in or relating to fabric drawing-off or take-up mechanism for circular knitting machines
IPC: D04B15/88
Filed: 1937-06-25
Abstract: 497,376. Knitting - machines. DAVIS & SONS, Ltd., S., and WIGLEY, A. June 25, 1937, No. 17687. [Class 74 (ii)] The fabric take-up means of a circular machine includes a circular driving member 3, the eccentricity of which with respect to the axis of the needle cylinder determines the speed of rotation of the take-up roller or rollers. The member 3 may be adjusted manually, or automatically when changes are made in the knitting operations. The manual adjusting means comprises a screw 19 acting against a spring 16. For automatically adjusting the disc or member 3 a vertical push rod 21 is provided, having a wedge-shaped part 22 for action upon a roller 14 carried by the ring. The rod 21 is controlled by a pattern drum or a timing chain. The intermediate mechanism through which the disc 3 imparts intermittent rotation to the take-up rollers 2 may comprise a friction ratchet mechanism including a disc 36 keyed to one of the rollers, and a driver 37 having a part oscillating about the periphery of the disc 36, balls or rollers being placed between the disc 36 and the driver. Inclined or cam surfaces are arranged upon either the disc 36 or the driver, so that movement of the driver 37 in one direction wedges the balls or rollers and transmits the drive to the takeup roller, and movement in the opposite direction releases the balls or rollers. The driver 37 may consist of a disc freely mounted coaxially with the disc 36, or of a lever formed with a similar operative part, and is operated by means of a bell-crank lever 47 one arm 47<1> of which carries a roller 52 engaging the eccentric driving disc 3. A block with strips or shoes of leather may be provided for preventing fluff &c. entering the ratchet mechanism, and a brake device may prevent reverse rotation of the take-up rollers. Specification 357,323 is referred to.
Patent GB-515283-A (GB)
Title: Improvements in or relating to manifold recording appliances
IPC: B41L3/14
Filed: 1938-06-14
Abstract: 515,283. Book-keeping appliances. GILBERT, A. June 14, 1938, No. 17722. [Class 16] Manifold recording-appliances of the type described in Specification 488615, are modified by using smaller receipt forms 4 with a folded collecting-strip 17 having a row of apertures 27 so that the strip can be advanced step-by-step upon the registration pins 5. The plate 1 carries a hinged cover 7, a hinged backing- plate 10, and the pins 5, some of which enter apertures 6 in the pad 4 which is secured by screws 2 passing through apertures or openended slots in the pad. The receipts are in pairs, the upper one having its entire rear surface carbonised and the lower one having a strip 15 for the important data which is copied on to strip 17. The perforations in strip 17 coincide when it is folded into any of its possible positions so that the whole strip can be filled line by line.