baber/WOPTO huggingface dataset:
Patent GB-781350-A (GB)
Title: Improvements relating to railway track circuits
IPC: B61L23/16
Filed: 1955-08-31
Abstract: 781,350. Railway track circuits. GENERAL RAILWAY SIGNAL CO. Aug. 31, 1955 [Sept. 9, 1954], No. 24994/55. Class 105. A railway track-relay circuit comprises an impulse transformer having two opposing primary windings, one 10 in a connection across the rails at the entrance end of the section and the other 5 in the battery feed circuit across the exit end of the section, a track relay winding TR in a connection across the rails at the entrance end of the section and an impulse relay or winding energized from a secondary winding of the transformer and contact means actuable by de-energization of the track relay winding and by energization of the impulse relay or winding for indicating that the track section is occupied. The impulse winding may be a winding on a polar biased type of relay, Fig. 2 (not shown). In the arrangement shown in Fig. 1, the primary winding 10 is predominant, under normal unoccupied conditions of the track section, and in occupied conditions the primary winding 5 is predominant, so that on occupation of the section a reversal of flux in the transformer takes place producing a current impulse which flows through the rectifier 17, front contact 25 of the track relay TR, lower winding H of the impulse relay IR upper winding L of this relay (which windings Hand L in series render the relay very sensitive) to the tap contact on the secondary winding 15 of the impulse transformer TF. At back contact 21, on operation of relay IR, track repeater relay TRP is caused to drop away to indicate pressure of a vehicle in the section by opening its front contact 27. At the same time, should the shunting effect of the vehicle on the track circuit be sufficient, relay TR drops away, opening its front contact 20 in the energizing circuit of the repeater relay TRP as in known arrangements. Departure of a vehicle from the section produces an impulse in the reverse direction to that on entry, the impulse current flowing through the rectifier 16, back contact 26 of relay TR, winding L of the impulse relay to the tap contact on the secondary winding 15. The winding L has a relatively low inductance and resistance as compared with that of the winding H and is bridged by a capacity C1 and the winding H is bridged over front contact 22 of relay TR by a series connected resistance-capacity R3, C2, when the relay TR is picked up. The purpose of the two windings L, H is to make the control of the impulse relay IR quicker, both to close and release upon departure of the vehicle I of relay TR remains picked up during variable and insufficient shunting effect by a vehicle occupying the section, due to bad condition electrically of the running surface of the rails, the impulse current relay IR under these conditions remains picked up by the slow release characteristics provided by resistance capacity R3, C2. Specification 632,271, [Group XXXVII], is referred to.
Patent GB-838128-A (GB)
Title: Improvements in or relating to sealing rotary pump shafts
Inventor: SMITH LESLIE JOHN
IPC: F04D29/10
Filed: 1957-08-08
Abstract: 838,128. Stuffing-box substitutes. GIRDLESTONE PUMPS Ltd. Aug. 20, 1958 [Aug. 8, 1957], No. 25073/57. Class 122 (5). The drive-shaft 2 of a rotary pump is sealed by a centrifugal liquid seal of leakage liquid created by impeller blades 13b on each side of a rotor 13 secured to the shaft within a chamber 9. To form a reservoir of leakage liquid in the chamber 9 when the pump is at rest, an annular wall 4b on the pump casing 4 closely surrounds the shaft and extends into a counterbore in the rotor 13, the latter being sealed to the shaft by a packing-ring 14.
Patent GB-832498-A (GB)
Title: Improvements relating to the dyeing or other wet-processing of yarns or like textilematerials in hank form
IPC: D06B5/20
Filed: 1955-09-01
Abstract: <PICT:0832498/IV(c)/1> <PICT:0832498/IV(c)/2> <PICT:0832498/IV(c)/3> Apparatus for dyeing or otherwise liquid treating hanks suspended in a tank from sticks or the like hanging from a lid frame 4, comprises top sticks 2, Figs. 1 and 2, formed as open frames 2a from stainless-steel rods suspended from hooks 5, and lower sticks 1, formed as shown in Figs. 1 and 3, which are passed through the hanks and suspended from the lid frame by longitudinal rods 3 and supports 7.  The lower sticks 1, Fig. 3, are provided with eyes 1a through which are passed the rods 3 to form a lower frame with the sticks 1, and the supports 7 may comprise an upper hooked rod connected to welded-together chain links so that the rods 3 may be inserted through the links at various heights.  Other forms of supports 7 are described and shown, and modified top and bottom sticks may be used.
Patent GB-819791-A (GB)
Title: Improvements relating to centrifugal clothes driers
Inventor: HOBBS VERNON HARRISON
IPC: D06F49/00
Filed: 1956-08-17
Abstract: 819,791. Centrifugal clothes driers. THERMAIR DOMESTIC APPLIANCES Ltd. Nov. 18, 1957 [Aug. 17, 1956], No. 25166/56. Class 34(2) The basket 23 of a clothes drier has a cover comprising a central stabilizing weight 35 carrying a disc 37 forming the actual cover and having radial slits, the metal adjacent which is pressed upwards to form the vanes 38 of an impeller for drawing air through openings 30 in the hinged cover 26 of the drier and over an electric heater 28 and forcing it into the basket and out through the perforations therein to outlets 30a in the casing 5, which has a water outlet 16. The basket is secured to a disc 21 mounted on the shaft 20 of an electric motor supported on a rubber block 17 carried by a spider 18. The underside of the disc is formed with impeller vanes 45 to assist the circulation of the air. The weight 35 is supported by a cross-pin 36 resting in a slot at the end of a tube 31 secured to the disc 21. Closure of the drier cover 26 completes the circuit to the heater and the motor and releases the motor brake. An independent switch enables the heater current to be cut off before the motor circuit is opened by the spring of the cover 26. Specification 819,792 is referred to.
Patent GB-631540-A (GB)
Title: Improvements in and relating to apparatus for controlling the line of aim of a sighting device
IPC: F41G5/00
Filed: 1943-02-18
Abstract: 631,540. Gun-sighting apparatus. SPERRY GYROSCOPE CO., Inc. Feb. 18, 1943, No. 25181/47. Convention date, July 23, 1941. Divided out of 631,517. [Class 92 (ii)] [Also in Group XXXVIII] In a fire-control system in which a sight under normal control is caused to follow a moving target, a generator, driven by or with the sight, generates a voltage which is dependent upon the angular velocity of the sight and is used to obtain the prediction correction for the gun or guns. The system is described in connection with the apparatus described in Specification 631,517, wherein angular movement of a handle 11 for controlling the servomotors 17, 17<SP>1</SP> of a sightdriving mechanism produces voltage signals corresponding in magnitude and sense to the angular displacement of the handle. Prediction data is applied through prediction servomotors 27, 27<SP>1</SP> which exercise a controlling effect on mechanical differential units 21, 211 located in the transmission system between the sighting device and coarse and fine selsyn transmitters 31, 33 and 31<SP>1</SP>, 33<SP>1</SP>, Fig. 1, leading to the elevation and deflection control of a gun or guns. The prediction motor 27 has a mainsenergized field winding 125 and a controlled quadrature winding 123 energized through a rate amplifier 113 of known type. The data allowed for may include time of flight of the projectile super-elevation, wind velocity, &c. Time of flight is accounted for by a tapping 107 on a potentiometer 105 connected across the generator 19, so that assuming that full generator voltage corresponds to maximum time of flight and necessitates an angular lead of Wt, the tapping is adjusted so that a proportion of the generator voltage corresponding to the actual time of flight is effective. This tapped voltage is connected in series with the other prediction voltages fed to terminals 109 and applied through the rate amplifier 113 to the field winding 123 of the prediction motor 27 which rotates until halted under the action of a potentiometer 29. This potentiometer has rotary contact arm 121 driven by a shaft 25 from motor 27, and is moved from its normal mid-point 120 to another point such that the voltage between the latter and point 120 is equal and opposite to the sum of the prediction voltages applied to the rate amplifier. The voltage applied to the prediction potentiometer 29 is derived from the secondary winding of a mains-energized transformer 111. In a modification, Fig. 4 (not shown), a D.C. tachometer generator is employed. Specification 631,541 also is referred to.
Patent GB-934756-A (GB)
Title: Improvements in or relating to racks for use in plating or otherwise treating a metal surface
Inventor: ESSEX FREDERICK JAMES
IPC: C25D17/08
Filed: 1960-07-20
Abstract: 934,756. Supporting racks for use in plating or otherwise treating articles. W. CANNING & CO. Ltd. July 12, 1961 [July 20, 1960], No. 25243/60. Class 41. A rack for supporting one or more articles whilst carrying out surface treatment operations such as electroplating is constructed such that an article can be moved on its supports during treatment so that no part remains untreated due to masking by the supports. Fig. 1 shows relatively movable vertical frames 10 and 11, e.g. of brass, each bearing supports 16. Frame 10 is substantially rectangular and has brackets 12 through which members of the frame 11 are vertically slidable against the action of springs 14. An annular article 24 having an inturned flange is supported by supports on frame 10. On relatively moving the frames 10 and 11, the article is engaged by supports on frame 11 and thereby moved. The relative movement of the frames may be caused by manually rotating a handle 20 about a stem 22, the handle acting on a cam 21. Alternatively, the movement may be by power actuated means such as a solenoid. Current for electrolysis may be supplied to the articles through one of the frames and its supports.
Patent GB-714084-A (GB)
Title: Improvements relating to regenerators for furnaces or the like
IPC: F28D17/00
Filed: 1951-10-29
Abstract: 714,084. Regenerators for furnaces. HEUER, R. P. Oct. 29, 1951 [May 15, 1951], No. 25247/51. Class 64(1) In regenerators for furnaces, particularly open-hearth reverberatory furnaces, the tendency of corrosive gases to impair the heat-absorptive properties of the usual refractory silica or fireclay housing is avoided by using a non-acid refractory material such as magnesite, chrome, or magnesite-chrome which also permits the use of a working-temperature of up to 2600 ‹F. As shown, the furnace has a central hearth 21 and is oil fired at each end alternately, the waste gases passing downwardly by flues 32, 31, round a curtain wall 38, through multiple restricted flue passages 42<SP>2</SP> in a heat absorber 42, through flue 45, past a baffle wall 43, and downwardly through chequer blocks 51. All the walls encountered by the hottest gases, including the sides and bottom of the flue 31, slag pocket 36, curtain wall 38, heat absorber 42, baffle wall 43 and regenerator roof and' side walls 44, are made of non- acid refractory. Beyond the wall 43, the regenerator may be made of fireclay or silica. The ratio of the total cross-sectional area of the flues 42<SP>2</SP> to the horizontal crosssectional area of the hearth is between 0.01 and 0.06, preferably 0.02-0.045.
Patent GB-245069-A (GB)
Title: Improvements in or relating to transformers for use with electric welding machines
IPC: H01F38/08
Filed: 1925-10-09
Abstract: 245,069. Soc. Anon. des Ateliers de Secheron, (Assignees of W÷rtmann, F.). Dec. 23, 1924, [Convention date]. Regulating transformers.- In a transformer used for arc welding the no-load voltage is compulsorily increased as the transformer is adjusted for working with a lower welding current. In one form the primary winding is divided, the main part being on the limb A, Fig. 2, of the core and a subsidiary part on the limb B. The secondary winding is also distributed as shown. Tappings are provided on the primary; when the main part only of the winding is in use the no-load voltage is highest but the leakage is greatest and corresponds to low welding current. If a part of the primary on the limb B is cut in, the induction and no-load voltage decrease, but the leakage is less and a higher welding current is obtained. In another arrangement the secondary winding is divided and placed on different limbs of a core; tappings are provided on both parts so that as a portion of one secondary part is cut out more turns are added to the other part. In a third arrangement the secondary winding is distributed on the two limbs F, G, Fig. 4 of the core, that part of the winding on the limb G having tappings as shown. The variation in the no-load voltage may also be effected by adjusting the air gap between the main part of the core and the limb H. A combination of the means above described can also be used.
Patent GB-1514966-A (GB)
Title: Golf club shaft and method of making same
IPC: A63B53/10
Filed: 1975-06-13
Abstract: 1514966 Golf club shaft EXXON RESEARCH & ENGINEERING CO 13 June 1975 [24 Sept 1974] 25357/75 Heading A6D A golf club shaft comprises at least two layers of thermoset resin impregnated, unidirectional, graphite fibres and at least one layer of woven glass fabric, the graphite fibres of each of the graphite fibre layers and the glass fibres of the glass fabric layer being orientated at predetermined specific angles with respect to the longitudinal axis of the shaft. A shaft may be made by cutting two flat sheets 10, 12 from a sheet of resin impregnated undirectional graphite fibres, arranging them in alternate overlapping arrangement with two similarly shaped sheets 14, 15 cut from a sheet of woven glass fabric, wrapping the so arranged sheets at least once, around a mandrel, curing the resin in an oven and removing the mandrel from the shaft. The unidirectional graphite fibres of layer 10 are arranged at an angle of between 13 and 26 relative to the longitudinal axis of the shaft, whilst the graphite fibres of layer 12 are arranged at an angle of between -13 and -26 relative to said axis. The glass fabric sheets 14, 15 each comprise fibres arranged at an angle of from +40 to +50 (preferably +45) and fibres arranged at an angle of from -40 to -50 (preferably -45) relative to the axis of the shaft. Layer 10 conveniently has a thickness of 0.007 to 0.010 inches and contains between 50 and 60 (preferably 54 to 58) volume percent graphite fibres in an epoxy resin matrix. Layers 14 and 15 conveniently have a thickness of 0.001 to 0.002 inches. The resin may be a polyester or an epoxy resin and cellulose acetate tape may be wrapped around the layers 10, 12, 14, 15 to keep them in position on the mandrel during curing. The mandrel is preferably tapered and the sheets 10, 12, 14, 15 are suitably shaped so that a tapered shaft may be produced.
Patent GB-242064-A (GB)
Title: Improvements relating to dough moulding machines
IPC: A21C7/02
Filed: 1924-10-25
Abstract: 242,064. Pointon, J. E., and Baker, Perkins, Ltd. Oct. 25, 1924. Rolling-machines.-A dough moulding machine comprises a conical table g combined with a plurality of spiral troughs f adapted to receive the whole of the dough portions on the discharge of a multiple box divider a and to deliver them. after moulding to the shelf or tray of a prover c. As shown, the troughs are supported from a bridge o and are arranged to give substantially equal travel to the dough portions. A shoot q may extend between the dividing outlet band the lowest trough. At the discharge end, the portions pass down extensions r into the hopper s of the prover, which is fitted with timing-flaps t. The machine is driven from the divider through a shaft h and gearing i - - m, the shaft h driving the prover chains d through gearing v.
Patent GB-518589-A (GB)
Title: Improvements in or relating to fastening devices for stair carpets
IPC: A47G27/06
Filed: 1938-08-31
Abstract: 518,589. Stair-carpet holders. DAVIS, F. L. Aug. 31, 1938, No. 25463. [Class 52 (v)] In a stair carpet fastening device comprising an angle shaped attachment bracket having a pair of lugs arranged in the same plane and a twoarmed holder comprising superposed slider and holding arms connected by an integral portion, the latter portion is reduced to enable the holder to be slid into position in the direction away from the centre line of the carpet and the holder. is provided with stops. The bracket 10 is provided with upset lugs 15 arranged in the same plane providing grooves 16 which may be engaged by the flat surface of the slide portion 20 of -the holder. Projections 23 are provided as stops for the sliding of the portion 20. The holder may be of. the form described in Specifications 422,727 and 471,111 or as shown in Fig. 4 may be formed of a rod having one flat face and one rounded and bent to U-shape, portions 24 being cutaway.
Patent GB-1491309-A (GB)
Title: Method of and tool for use in setting expansible dowels
IPC: B27F4/00
Filed: 1975-06-16
Abstract: 1491309 Screw sockets HILTI AG 16 June 1975 [8 July 1974] 25563/75 Heading F2H [Also in Division B4] A screw socket (20a) is secured in a prepared hole by driving a plug (20b) into a leading portion of the socket bore to expand the leading end of the socket against the wall of the hole. The leading end portion of the bore is of smaller diameter than the plug and the threaded rear portion of the bore.
Patent GB-1092435-A (GB)
Title: Copolyesters
Inventor: MCINTYRE JAMES ERIC
IPC: C08J3/05
Filed: 1964-05-15
Abstract: The invention comprises aqueous dispersions of a water insoluble, crystallizable block or graft copolymer of m.p. above 100 DEG  C. containing polyester segments which are linked to water solvatable polymer segments derived from a water soluble polymer having an average molecular weight of at least 300.  The polymers may have a relative viscosity between 1.1 and 1.5.  Polyesters specified are poly (ethylene terephthalate), poly (tetramethylene terephthalate), poly (1,4 - bismethylenecyclohexane terephthalate), poly (ethylene naphthalene-2,6-dicarboxylate) and poly(ethylene diphenoxyethane - 4,41 - dicarboxylate). Water soluble polymers specified are poly (vinyl alcohol), poly (vinyl methyl ether), poly (N,N-dimethyl acrylamide), methyl cellulose, hydroxyethyl cellulose, polyethylene glycol, polypropylene glycol, poly (trimethylene glycol), polytetramethylene glycol and polybutylene glycol.  The polyalkylene glycols may have molecular weights up to 6000.  The copolymer may be branched by adding monomers or polymers having a functionality of 3 or more to the reaction mixture, e.g. trimethylol propane, trimethyl trimesate, glycerol/ethylene oxide adduct and pentaerythritol/ethylene oxide adduct.  A particular linear polymer specified contains 10-50% of ethylene terephthalate units and 90-50% polyoxyethylene terephthalate units, the mole ratio of the former to the latter being between 2 and 6 to 1.  The products form a stable dispersion when added in molten form to agitated water.  The water may be heated for example to 40-60 DEG  C.  Antioxidants may be added to the dispersion, e.g. zinc dinonyldithiocarbamate, 2 - a  - methylcyclohexyl - 4,6 - dimethylphenol, pyrogallol and zinc diethyldithiocarbamate. In examples the reaction mixtures include in addition to the above reactants zinc acetate (1 and 2) calcium acetate (3), antimony oxide (3), phosphorous acid (3), lead oxide (5), and 2,6 - ditertiarybutyl - 4 - methyl phenol (5).  The dispersions of the invention are suitable for application to fibres and fabrics of similar polyesters.
Patent GB-492217-A (GB)
Title: Improvements in or relating to switches for controlling direction indicators on vehicles
IPC: B60Q1/34
Filed: 1937-09-22
Abstract: 492,217. Indicators for switches. DAY, H. F. Sept. 22, 1937, No. 25674. [Class 38(v)1 When a two-way switch lever 3 is moved from the central position shown to either of its side positions to operate the direction indicators of a vehicle, a disc 5 is moved into one of the dotted positions thereby exposing to view a warning sign such as a red disc 2. The disc 5 is pivoted at 4 and connected to the switch lever 3 by a flexible connection consisting of two coil springs.
Patent GB-975437-A (GB)
Title: Improvements in and relating to frames for printed-circuit card assemblies
Inventor: BONNER LINDSAY
IPC: H05K7/14
Filed: 1962-07-04
Abstract: 975,437. Mounting electrical equipment. SOLARTRON ELECTRONIC GROUP Ltd. June 26, 1963 [July 4, 1962], No. 25685/62. Heading H1R. A frame for a printed circuit card 42 comprises two parallel spaced-apart rails 10a, 10b having mutually facing grooves 12 which are flared at one end and at the other end terminate in cavities wider than the grooves which accommodate inserts 20; the latter are bifurcated for part of their length and, over the rest of their length, have a longitudinal groove on one side only (shown in the upper insert 20 in Fig. 6). The printed circuit card 42 has two cut-out corners 44, 49, the former being larger; if the card is inserted into the frame the wrong way up, shoulder 49a on the card fouls shoulder 46 on the lower insert, and the full engagement of the card with end connector 34 is frustrated. The rails, which may be made of plastic, e.g. polystyrene, have keyways 40 for mounting on rods 38, and coloured coding indicators may be inserted in the recesses in the front edges of the rails.
Patent GB-591151-A (GB)
Title: Improvements in or relating to hinges for relatively hinged members
IPC: A45C13/00
Filed: 1944-12-21
Abstract: 591,151. Hinges. HOWE, E. A. Dec. 21, 1944, No. 25690. [Class 65 (ii)] A cheap hinge, usable without modification at either end of a box lid, comprises a flat plate of triangular or equivalent (e.g. L-shaped or, according to the Provisional Specification, square or quadrantal) form which projects downward from the lid as shown in Fig. 5, which also shows how the arrangement holds the lid in an open position. One of these plates is fixed to each end of the lid, in a recess if desired, being preferably fixed by two screws and hinged by a third, as shown, or the plates may be inserted in slits in the lid and box, the screws then being replaced by wire or like pins driven across the slits from the end of the lid and box. The plates may be of metal, fibre, plywood, or synthetic resin, the latter being reinforced if desired by paper or otherwise. According to the Provisional Specification the plates may be formed integral with the flange of a sheet metal lid, and they may be pivoted by projections bent up to project into small holes in the ends of the box.
Patent GB-650600-A (GB)
Title: Fermentation process
IPC: C12P25/00
Filed: 1948-10-02
Abstract: In a process of producing riboflavin by fermenting a culture medium with Erethemocium Ashbyii under submerged aerobic conditions, an antibiotic material is added, e.g. a penicillin salt.