baber/WOPTO huggingface dataset:
Patent GB-697319-A (GB)
Title: Improvements in or relating to electric socket members
Inventor: WHALE THOMAS HARPER
IPC: H01R13/453
Filed: 1950-03-21
Abstract: 697,319. Two-part couplings. TELEPHONE MANUFACTURING CO., Ltd. March 21, 1951 [March 21, 1950], No. 7014/50. Class 38 (i). A socket for a three-pin plug has a shutter or shutters moved in a predetermined direction upon initial insertion of the plug to uncover the earth contact, and moved in the same plane in a different direction upon further insertion of the plug, to uncover the current-carrying contacts. The socket comprises a base 14 screwed to a metal saddle 11 which is fixed to a front plate having rectangular openings for receiving the three plug pins, Fig. 1 (not shown). The shutter 23 has a slot 23a co-operating with a pin 24 on the base 14 and is urged to the position shown by a spring 25 anchored at 14b and wrapped round a pin 26 on the shutter. In this position a chamfered shutter surface 23c covers the earthing socket contact 16a and the current-carrying contacts 15a are shielded by the main shutter body. Insertion of the plug causes the longer earth pin to engage the surface 23c and rotate the shutter so that the slot 23a is vertical and chamfered shutter surfaces 23d overlie the contacts 15a. The earth pin passes through a shutter cut-away portion 23b and further insertion of the plug causes engagement between the current-carrying pins and the surfaces 23d whereby the shutter moves rectilinearly to uncover the contacts 15a, the slot 23a permitting this movement. A metal insert 27 reduces the friction in the engagement of the earth pin. The saddle 11 carries the earth contact 16a and a screw for connection to an earth wire. In Fig. 3A the shutter 123 comprises two parts connected by a spring 125 and having chamfered surfaces 123c, 123d. Insertion of the earth pin into the socket contact 116 causes bodily displacement of the shutter against restoring means not shown. Further insertion of the plug causes the shutter ends 123a to be moved inwardly so that they overlap whilst the lower ends pivot about the earth pin, and the other pins enter the contacts 115.
Patent GB-493838-A (GB)
Title: A method of rendering cast iron immune from attack by sea water
IPC: F16L58/08
Filed: 1937-03-11
Abstract: To render them immune from attack by sea water, cast iron valve casings and cast iron pipes used for the conveyance of sea water are provided on their interior and exterior surfaces with a sprayed coating of aluminium or cadmium as free as possible from impurities and of a thickness of between six and ten thousandths of an inch.
Patent GB-622350-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J19/36
Filed: 1947-03-14
Abstract: 622,350. Cooling discharge apparatus; electrostatic precipitators. M-O VALVE CO., Ltd., ANDREWS, D., and TOWNSEND, P. G. March 14, 1947, No. 7163. [Class 39 (i)] The air supply used for cooling an electric discharge device is freed from dust by locating in the air supply path one or more electrostatic precipitating electrodes held at a positive potential with respect to earth by connection to an electrode of the electric discharge device. A wire mesh pad electrode 7 is electrically connected through the metal socket 6 and the finned radiation 4 to the anode of the thermionic valve 3. An electrode, held at negative potential with respect to earth, may be provided in the duct 2 to lie in the air-flow before the pad 7 to enhance the attraction of the pad 7 on the dust particles. Additional filters may be used earlier in the air supply path.
Patent GB-126125-A (GB)
Title: Improvements in or relating to Wheel Rims for Pneumatic Tyres and to the Process of Rolling the same.
Inventor: SLOPER THOMAS
IPC: B60B21/02
Filed: 1918-04-29
Abstract: 126,125. Sloper, T. April 29, 1918. Hoops and rings.-Wheel rims for aeroplanes &c. are constructed so as to be of light structure by rolling cold hard steel strips, which are preferably sheared to uniform width prior to passing them between rolls which bend them into the channel form shown in Fig. 2. Two pairs of bending rolls are used, the first of which forms one bend C<1> in the strip, and the second pair D, D<1> forms an additional bend C<2>. The rim is then completed by other rolls as E, E<1>, which maintain the channel form but are shaped to crush the upstanding edges inwards and laterally outwards, whereby such edges are thickened to form thickened edges C<3>. A final pair of rolls accentuates this thickening, and the finishing rim so formed is held together by ties C<5>, Fig. 5. The various rolls are shaped so that the spaces between them are entirely filled with metal where no thickening of the metal is required, and the edges of the rim which are to be crushed in are brought to such a position that they lie radially to the axes of the rolls when they are being crushed in.
Patent GB-991187-A (GB)
Title: Improvements in and relating to composite electric insulating material
Inventor: NETZE ERICH
IPC: H01B3/04
Filed: 1962-02-23
Abstract: 991,187. Laminates. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Feb. 23, 1962, No. 7204/62. Heading B5N. [Also in Division H1] An electrically insulating material comprises a fibrous supporting layer 1 of asbestos, glass or synthetic fibres or paper, a layer 2 of mica paper, and a layer 3 of mica flakes, the layers being united by a resin which softens on heating, e.g. shellac. The mica flakes, or both sides of the material, may be resin coated, e.g. with an alcohol solution of shellac.
Patent GB-850925-A (GB)
Title: Production of stabilised polymers
IPC: C08F212/10
Filed: 1957-03-05
Abstract: Vinyl aromatic polymers having a reduced tendency to discolour are made by polymerizing a monovinyl aromatic monomer, alone or together with a mono-olefinic monomer copolymerisable therewith, in the presence of (a) 0,001-1% of a mono- or poly-hydric phenol or of a partial ether of a polyhydric phenol in which at least one of the phenolic groups remains unetherified or of a phenolic diphenylmethane and (b) 0,01-0,5% of a free radical-liberating agent.  The aromatic monomer may be styrene or alphamethylstyrene and these may be copolymerised with acrylonitrile.  The phenol may be a methoxyphenol, a benzyloxyphenol, di-t-butyl cresol, 2.21-methylene-bisphenol, hydroquinone, catechol or resorcinol or the alkyl derivatives of these phenols.  The free radical-liberating agent may be a peroxide such as benzoyl, t-butyl, diacetyl, lauroyl or hydrogen peroxides or t-butyl or cumene hydroperoxides or diethyl peroxycarbonate, potassium persulphate or a perborate; or it may be an azo compound such as azodi-isobutyronitrile, p-bromobenzene-diazonium fluoborate, azomethane, phenyldiazonium halides, diazoaminobenzene, p-bromobenzenediazonium hydroxide or p-tolydiazoaminobenzene; or it may be hydrazine or its derivatives such as hydrazine hydrochloride or dibenzoyl hydrazine, N-nitroso-p-bromoacetanilide or tetraethyl lead.  The polymerization may be carried out in bulk, in solution in an organic solvent such as alcohol, acetone or pentane or in aqueous suspension.
Patent GB-538931-A (GB)
Title: Improvements in radio picture transmission
IPC: H04N1/00
Filed: 1940-04-22
Abstract: 538,931. Wireless signalling; copying telegraphy. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 22, 1940, No. 7265. Convention date, April 20, 1939. [Classes 40 (iii) and 40 (v)] In order to touch up the streaks in received pictures due to fading and like effects, a local source of oscillations 17, adapted to produce in the received signals a tone between white and black, is applied to the recorder 20 in place of the received signals when these fall between a predetermined level. In the system illustrated, frequency modulation is used and the frequency of the local oscillations lies between the frequencies of the carrier when unmodulated and when fully modulated. The frequency-modulated currents, transmitted by amplitude modulation of a radio carrier, are demodulated at 9, the frequency-modulated product passing through a limiter 10 to a filter 19, which converts frequencymodulations into amplitude-modulations which influence the recorder 20. If the amplitude falls below the determined limit, an electronic switch, represented as a contact-making relay 14, 16, connects up the local source 17 in place of the received signals.
Patent GB-1214351-A (GB)
Title: Improvements in and relating to a process for forming stoichiometric carbide coatings on filaments
IPC: C22C47/04
Filed: 1968-02-15
Abstract: 1,214,351. Stoichiometric SiC coatings. UNITED AIRCRAFT CORP. 15 Feb., 1968 [24 Feb., 1967], No. 7446/68. Heading C1A. Silicon carbide is stoichiometrically deposited from the vapour phase on to a resistively heated filament by drawing the filament through a reaction zone at a temperature of 1130-1400 C. and exposing to a gas stream comprising CH 3 SiHCl 2 , H 2  and a hydrocarbon gas, e.g. CH 4 . The CH 3 SiHCl 2 /H 2  molar ratio is preferably between 1 : 1 and 1 : 3 and the hydrocarbon gas may comprise 15À3-57 mole per cent of the gas flow. The filament may be a boron coated wire. In the preferred embodiment, a condenser is employed to yield a mixture of fixed dew point, e.g. 12-15 C. using H 2  or Aq as a carrier gas. In Fig. 2, H 2  is introduced through a conduit 60, pressure regulator 62, flowmeter 64 and a valve 66 to the evaporator 68. Part of the H 2  is bubbled through CH 3 SiHCl 2  70 on the evaporator 68 and the mixture is discharged through a conduit 72 to a condenser 74. The output is fed through an inlet 10 into the reactor 4 through which the filament 2 is drawn. A portion of H 2  may bypass the evaporator and be introduced through a line 76 to a throughway valve 80 for purging and/or finer control of the H 2  content of the reactant mixture. Cooling H 2  is admitted through the inlet 8 from the condenser 82. Methane is introduced through a conduit 90, valve 92 and a flowmeter 94. Fig. 1, not shown, illustrates in more detail the construction of reactor 4.
Patent GB-526081-A (GB)
Title: Improvements in tensioning devices for transmission chains and the like
IPC: F16H7/08
Filed: 1939-03-08
Abstract: 526,081. Chain tensioning arrangements. WELLER, J. March 8, 1939, No. 7521. [Class 80 (i)] In a tensioning device for roller chains comprising a slipper bearing upon the chain and so mounted that it can advance to take up the slack thereof, the surface of the slipper is adapted to bear both upon the edges of the link plates and also upon the rollers between such plates. The length of contact with the side plates may be greater than that with the rollers as, for example, when the slipper is arranged to act upon the inside of the chain and also upon the side plates of a portion of the chain on either side of the chain wheels as described in Specification 526,419, [Group XXXVI]. As applied to a duplex chain where a row of link plates runs between pairs of rollers, the slipper may be made wide enough to cover the pairs of rollers and provided with a groove down the centre to accommodate the said link plates, or it may bear upon the outside link plates also. Preferably the grooves are of such depth that, when the chain is new the link plates bear before the rollers. With a flexible slipper, it may be laminated and the first lamination slotted to receive the link-plates. Specifications 471,890, 477,399, 484,128, 505,746 and 510,957 also are referred to.
Patent GB-1528533-A (GB)
Title: Method of and apparatus for cutting and collating at least two sheets from a continuous web
IPC: B65H39/14
Filed: 1976-02-26
Abstract: 1528533 Sheet cutting and ordering apparatus PITNEY-BOWES Inc 26 Feb 1976 [11 June 1975] 07542/76 Heading B8R Apparatus for preparing stacks 30 of collated sheets from an input web 9 comprises a rotating collating drum 10 on which the web is wound a predetermined number of times, and severing means which are held inoperative until the required number of portions of the web are wound on the drum 10; when the wound portions are severed from the web. The drum 10 includes a knife well 15 to receive a blade 19 during a severing operation, and means to hold the free end of the web 9 on the drum 10, such means comprising for example vacuum ports 14 or mechanical grippers. The blade 19 is received in a recess in a drum 17 rotating in synchronism with drum 10 and can be projected for severing by solenoids 23 acting against return springs 22. In operation, the web is wound around the drum 10 a number of times corresponding to one less than the number of sheets required in the stack 30, the additional sheet being severed individually.
Patent GB-1462688-A (GB)
Title: Trucks or trolleys
IPC: B66F9/075
Filed: 1974-02-19
Abstract: 1462688 Masted lift trucks BYGG-OCH TRANSPORTEKONOMI AB 19 Feb 1974 [23 Feb 1973] 7574/74 Headings B8H and B8L A masted lift truck comprises a self supporting chassis 1 with forwardly extending support arms 2 with rollers 3 at their free end and rearwardly extending arms supporting swivellable wheels 4. A mast assembly 5 with forks 6 is fixedly mounted to stub posts on the chassis and a body with a driven and steerable wheel 8 is secured to the rearwardly extending arms. The mast and the body being securable to and detachable from the chassis independently of each other.
Patent GB-417854-A (GB)
Title: Improvements in and relating to electric converting systems
IPC: H02K29/06
Filed: 1933-03-13
Abstract: 417,854. Frequency and phase changing; motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Willis, C. H. ; 184, Prospect Avenue, Princeton, New Jersey, U.S.A.) March 13, 1933, No. 7607. Convention date, March 12, 1932. [Classes 35 and 38 (ii).] Machines with vapour or like rectifiers in place of commutators.-Relates to a frequency changer in which means are provided for varying the output frequency, a particular application being the speed control of A.C. motors. Each phase winding 12, Fig. 1, of a synchronous motor 10 is connected to the secondary winding 16 of a supply transformer 14 through a full-wave rectifier comprising a pair of valves, e.g. 17, 22, the common return circuit including the field winding 13 of the motor. The grids of the valves 17-22 are controlled so that the phase windings 12 receive current impulses in succession. Since the current through the field winding 13 is unidirectional the motor will run synchronously at a speed determined by the grid control. The grids are controlled by means of transformers 23-28 supplied from a phase-shifting transformer 34 through a commutator 31 having pairs of fixed contacts 36, 35 and 37 which are bridged successively by a member rotated by the motor so that the phase windings 12 successively receive current. By adjusting the phase shifter 32 the current supplied to the motor 10 can be varied. For each value of current the speed will adjust itself until the E.M.F.s and back E.M.F.s in the windings 12 balance. Thus the speed of the motor 10 can be varied by adjusting the phase shifter 32. In a modification of this the cathodes of the valves are connected to the end of the winding 13 and the transformer 15 has six secondary windings which are connected in the anode circuits of the valves. In a modification, Fig. 2, additional valves 17<1>-22<1> supplied from a secondary winding 161 are used so that current can be supplied in either direction to the phase windings 12 ; a closer approach to full-wave A.C. being thus obtained. The winding 13 is centre tapped, its ends being connected to the mid-points of the secondary windings 16, 161 so that current flow through it is unidirectional. In a further modification a 3-phase supply is used and the winding 13 is supplied separately through a rectifier. Specification 410,740 is referred to.
Patent GB-868122-A (GB)
Title: Improvements in or relating to printing inks
IPC: C08L61/02
Filed: 1957-03-07
Abstract: A moisture-setting printing ink comprises a dispersion of pigment in a glycol solution of a mixture of (1) either a novolak or a condensed cyclohexanone resin and (2) a drying or semi-drying oil modified alkyd resin.  The novolak may be formed from formaldehyde and phenol or cresol.  A suitable one is known as "Wresinoid 54."  A suitable cyclohexanone resin is known as Howards M.S.2.  The preferred alkyds are glycerine-phthalic acid condensates modified with linseed/tung, linseed or dehydrated castor fatty acids.  Suitable ones are available under the names "Paralac" (Registered Trade Mark) or Wresinol.  The preferred solvent is dipropylene glycol.  Di- or tri-ethylene glycol may be used in admixture with hexylene glycol or a high boiling glycol ether.  Driers, e.g. cobalt 2-ethyl-hexoate may be incorporated in the ink.  If necessary the two resins are heated together to make them compatible and the solvent then added.  In an example the pigment was "Monastral Green" (Registered Trade Mark) extended with a calcium carbonate extender known as Sturcal.
Patent GB-738999-A (GB)
Title: Copperable tris-azo dyestuffs
Inventor: LEGG NORMAN
Filed: 1953-03-20
Abstract: The invention comprises dyestuffs of formula:  <FORM:0738999/IV (c)/1> where X is O or NH and Ar is a radicle of the benzene or naphthalene series which may bear substituents other than COOH and SO3H, the two groups X and the two groups Ar being the same or different.  They are made by tetrazotizing 4,41 - diamino - 1,11 - azobenzene-3,31-dicarboxylic acid and coupling with the appropriate pyrazolone or pyrazole.  The dyestuffs dye cotton in orange to violet shades and may be after coppered.  In examples the above tetrazotized compound is alkaline coupled with (1) 1-(m-aminophenyl)-3-methyl-5-pyrazolone, and (2) 1-phenyl; (3) 1-(m-trifluoromethylphenyl), and (4) 1-(41-methylphenyl)-3-methyl-aminopyrazole.  In the Provisional Specification the dyestuffs are stated to be copperable in substance and Ar may contain up to two SO3H groups.
Patent GB-900412-A (GB)
Title: Improvements in track laying machines
Inventor: WEST JACK DENIS
IPC: E01B29/02
Filed: 1958-03-11
Abstract: 900,412. Laying railway track. BRITISH TRANSPORT COMMISSION. June 11, 1959 [March 11, 1958], No. 7814/58. Class 104 (2). [Also in Group XXXII] A track-laying machine in the form of a train which runs on the track being laid or relaid and operates by lifting and lowering complete track sections, includes a vehicle having end-supporting bogies 1, 2, sufficiently spaced to straddle a track section, which bogies are bridged by a structure 3 supporting a longitudinally reciprocable beam 4 with lifting appliances at each end of the beam so that while one of the lifting appliances is lifting a track section from the ground space between the bogies the other may be taking up a new track section from a stock wagon in the train. As shown, the structure 3 forms a tunnel within which the beam runs on roller bearings 5, 6 and is moved by cables driven by the winches 10. The lifting appliances 17, 18 at the ends of the main beam 4 each comprise a subsidiary beam suspended from the main beam by hoisting cables 13, 14 and incorporating hydraulically-operated track engaging members 19, 20. The pulleys over which the cables 13, 14 are trained as shown, are swivelmounted and means may be provided for automatically turning them on such mountings as the beam 4 reciprocates in accordance with any curve in the track being operated on. When the machine is used solely to recover old or to lay new track, the vehicle shown is placed at one end of the train and the lifting appliance at the free end shuttles track sections between positions beyond the end of the train and immediately below the structure 3 respectively, while the other lifting appliance operates between the same position under the structure and a stock or dump position on another wagon of the train. When the vehicle is used to lift old and lay new sections at the same time, the vehicle shown is used at the centre of the train and is preferably coupled at both ends to a transfer wagon, Fig. 3 (not shown). The latter comprises a flat-topped bogiesupported structure on top of which a trolley runs on guide tracks carried by the structure. These guide tracks may overhang the transfer wagon and be linked with like tracks on other wagons of the train so that the trolley may convey track sections further along the train. Traversing means may also be provided on the transfer wagon so that its trolley may be aligned with the beam 4 of the track-lifting vehicle shown, even when working on curved track. The relaying of track is effected by using one end of the beam 4 to lift an old section from the ground beneath the structure 3 while the other end takes up a new section from one transfer wagon, and subsequently the first end takes the old section to the other transfer wagon while the second end lowers the replacement section.
Patent GB-1384116-A (GB)
Title: Methods of electroplating bodies having low electrical conductivity
IPC: C25D5/54
Filed: 1972-02-19
Abstract: 1384116 Electro-plating bodies of low electrical conductivity CABOT CARBON Ltd 19 Feb 1973 [19 Feb 1972] 7814/72 Heading C7B A body having low-conductivity, e.g. of plastics material containing carbon black, is electro-plated, e.g. with Ni, Co or Cu, by initially applying a sufficiently low electric current whilst using an electrolyte having a sufficiently high availability of metal ions adjacent the connector which supplies current to the workpiece for metal to be electro-deposited on the workpiece adjacent to and in contact with the connector, gradually increasing the current as metal becomes deposited on the body, and thereafter completing the electroplating operation. For electro-plating with copper, either a pyrophosphate bath may be used, or the initial plating step may be performed by plating first in a high copper-content bath (e.g. CuSO 4 ), then with a copper plating bath having good throwing power, e.g. a sulphate bath with a lower copper content, and completing the operation using conventional bright acid copper bath. Layers of Ni and Cr may be deposited on the Cu layer.
Patent GB-677831-A (GB)
Title: Cooking implement and method of preparing
IPC: B05D5/08
Filed: 1948-03-16
Abstract: Cooking utensils are coated with a silicone resin formed from an alkyl, e.g. methyl or aryl, e.g. phenyl silicon - hydroxy compounds by applying to the utensil a solution of the resin in a volatile organic solvent and removing the solvent.  Specified utensils are saucepans, frying pans, baking tins, knives, forks, spatulas, flan cake turners, and ice cube trays.  Specification 637,424, [Group VI], is referred to.
Patent GB-398835-A (GB)
Title: Improvements in or relating to agricultural machines for distributing manure, seed and other substances
IPC: A01C15/12
Filed: 1932-03-16
Abstract: 398,835. Distributers for manures, seeds, &c. BRYAN, J., Hayden Villa, Staverton, Cheltenham, Gloucestershire. March 16, 1932, No. 7870. [Class 6 (i).] In a distributing- machine comprising a hopper 1 mounted on road wheels 5 and provided with a comb-like agitator 7 extending across the full width of the inclined bottom of the hopper with its teeth extending through an adjustable delivery opening 6 at the rear, the agitator is carried by a bar 8 disposed in front of and sealing a slot 6a at the base of the front wall of the hopper, and is driven by a connecting- rod 10 and an eccentric or crank operated by gear wheels 13, 14 driven from one of the wheels 5 and disposed in front of the hopper, the size of the delivery opening 6 being adjusted by moving the rear wall of the hopper. The agitator 7 is inserted through the slot 6a and held in place by slidably mounted clips 26. The rear hopper wall is adjustable vertically by means of a pivoted lever 24 secured by a bolt 25 and a wing nut. Provision may be made for varying the width of the tips of the teeth of the agitator 7. A seed tube may be provided between each pair of teeth.