baber/WOPTO huggingface dataset:
Patent GB-737870-A (GB)
Title: System for the scanning and selection of electrical circuits or equipments
IPC: H04M15/08
Filed: 1950-05-05
Abstract: 737,870. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. May 5, 1950 [June 2,1949], No. 11161/50. Class 40 (4). The first idle outlet in any desired one of a plurality of groups of outlets is chosen by a single set of static electrical switches (viz. cold cathode tubes or the like), which set is caused to respond to signals from free outlets of the desired group only. In the arrangement described three groups, each of three outlets, are provided, the test wires, e.g. C11, and busy contacts, e.g. BC11, being shown. The test wires of the first circuit of each group are multipled to wire IW1, those of the second circuits and third circuits being similarly multipled to wires IW2 and IW3 respectively. The wires IW1, IW2 and IW3 are connected to the control electrodes of cold cathode tubes Vb1, Vb2, and Vb3 respectively, either by separate conductors TW1, TW2, and TW3, or by connection to common conductor TW via gates which effectively connect each wire to the corresponding tube only. The groups of outlets are characterized by pulses #1, #2, and #3 (Fig. 2) applied to the test wires, and the control wire MW may be connected to the # source corresponding to the desired group. Pulses PI, P2, P3 (Fig. 2) are connected to gates individually associated with tubes Vb1, Vb2, Vb3 respectively. These gates are such that the potential of the control electrode rises to - 50 v. (the firing potential) only when pulses are simultaneously applied by the # source connected to MW, the P source relevant to the tube, and the # source connected to a free outlet of the desired group. Thus the set of tubes Vb can respond to outlets of the wanted group only, the first, second, and third outlets of which are tested in succession by the tubes Vbl, Vb2, and Vb3 respectively. Assuming the desired group to be the second group and the first circuit thereof to be free, Vb1 will fire when #2 and P1 pulse simultaneously. Vb1 remains fired, disables the tubes Vb2 and Vb3, and operates relay Rb1 to register the fact that the first outlet of the desired group is free. The pulses on wire MW are also applied to the tubes Va1, Va2, Va3 of a second set of tubes via gates controlled by pulses #1, #2, #3 respectively so that the tube Va2 corresponding to the desired group is fired and operates the corresponding relay Ra2 to register the identity of that group. Over front contacts of the operated relays Ra2 and Rb ground is applied to a lead corresponding to the first free outlet of the desired group to control the setting of a selector switch (not shown) to that outlet. One of the pulse sources P may also be connected to MW by inserting a resistance in the # connection to MW and a rectifier in the P connection or vice versa, whereby a particular outlet of any desired group may be selected. Specifications 737,876 and 737,877 are referred to.
Patent GB-1249591-A (GB)
Title: Copolymers of substituted maleimides useful as dye mordants
Inventor: COHEN HYMAN L
IPC: G03C7/25
Filed: 1969-03-03
Abstract: 1,249,591. Copolymers of substituted maleimides. EASTMAN KODAK CO. 3 March, 1969 [1 March, 1968], No. 11278/69. Headings C3H and C3P. [Also in Division G2] A copolymer containing repeating units of Formula I: or Formula II: where each of R‹ and R<SP>1</SP> is H or a C 1-7  alkyl group, each of R<SP>3</SP>, R<SP>4</SP>, R<SP>6</SP> and R<SP>7</SP> is a C 1-4  alkyl group or, in Formula I, R<SP>3</SP> and R<SP>4</SP> together with the N atom to which they are bonded represent the atoms necessary to complete a monoaza heterocyclic ring, R<SP>5</SP> is a straight or branched | chain alkylene group, Q is -N-, a | -N#-R<SP>6</SP> group or the group -CH-, X | is an anion and, in Formula II, m is 0 or 1 and n is 1 or 2, n being 1 when Q is | -CH- and n being 2 and m being 1 when Q is | -CH- and n being 2 and m being 1 when Q is | -N#-R<SP>6</SP> and repeating units derived from another ethylenically unsaturated monomer. The copolymer may be made by treating a copolymer of maleic anhydride and styrene, ethylene or tetramethylbutadiene with an amine of formula where R<SP>3</SP>, R<SP>4</SP>, R<SP>5</SP>, R<SP>7</SP>, Q and n are as before, and quaternizing at least some of the reacted maleic anhydride units with an alkylating agent of formula R<SP>6</SP>X where R<SP>6</SP> is as before and X is a group which forms an anion. The copolymer may be mixed with a waterpermeable hydrophilic organic colloid, e.g. gelatine, and the mixture may be dyed with an acid dye which is mordanted by the copolymer.
Patent GB-526999-A (GB)
Title: An improved control device for variable delivery pumps
IPC: F04B49/12
Filed: 1939-04-13
Abstract: 526,999. Controlling variable-delivery pumps ; hydraulic presses. ERNST, W. April 13, 1939, No. 11284. Convention date, July 19, 1938. [Class 102 (i)] [Also in Group XXIX] The stroke of a revolving radial cylinder pump is varied by adjusting the eccentric ring 15 by a piston 51 exposed to the delivery pressure, the adjustment being opposed by a spring 74. The piston 51 is stepped and either one or both faces 59, 60 may be exposed to the delivery pressure by connecting the pipe 150 to either port 62 or 64 and suitably arranging the plugs 67, 68. The setting of the spring 74 is adjusted by either the handwheel 79 or moving the abutment 70 by fluid pressure applied to the pistons 87 whose movement is limited by stops 95 adjusted by the handwheel 101. Fig. 2 shows the pump supplying a press 126 controlled by a lever 135. When the press nears the end of its stroke, an arm 128 operates a switch 164 which, through a time delay switch 161, energizes a solenoid 154 to actuate a switch 153, which energizes a solenoid 145 to actuate a valve 142 and connect the pump delivery to the pipe 147 connected to the cylinders 84 and thus increase the delivery pressure of the pump. Specification 526,782 is referred to.
Patent GB-237991-A (GB)
Title: Electric plug and socket connectors
IPC: H01R13/652
Filed: 1924-05-07
Abstract: 237,991. British Thomson-Houston Co., Ltd., and Wheat, H. C. May 7, 1924. Plug connectors for walls &c. have reversible covers for securing them upon or flush with a surface. Earthing means are incorporated. A stamped or spun metal cover c has an inwardly turned flange d<1> at one end and an outwardly turned flange d at the other. Fig. 1 shows a socket a secured on a wall and Fig. 2 the same secured flush with a wall surface, a separate annular plate or flange e then holding the socket within the cover. The plug f has a metal cover j secured over the hand shield portion, and in electrical connection with this cover is a spring tongue k adapted to make contact with the edge of the socket cover or plate before the plugs g connect with the sockets b. A binding screw k<1> may be used to connect the earth lead of a three-core flexible cable.
Patent GB-696894-A (GB)
Title: Improvements in or relating to scaffolding clamps
Inventor: HAWES ALBERT HENRY
IPC: E04G7/16
Filed: 1950-05-08
Abstract: 696,894. Scaffold clamps. KWIKFORM, Ltd. May 7, 1951 [May 8, 1950], No. 11331/50. Class 20(ii) A scaffold clamp comprises two jaws 13, 23 hinged together by a pivot 22 and has a clamping screw 16, engaging the scaffold tube 10 by means of a pressure piece 17 and the jaw 23 is arranged so that the scaffold tube must take the jaw 23 with it into the operative clamped position and into the inoperative position, with the tube in engagement with the seating 24 of the jaw. This is ensured by a circumferential extension 26 on the jaw 23 which prevents the tube being inserted between itself and the end 19 of the jaw 13 without moving the jaw 23 to operative position. The length of the extension 26 in relation to the length of the slot 29 engaging the pivot 22 prevents the jaw 23 moving to inoperative position without the tube. The slot 29 allows the clamping screw 16 to move the jaw 13 bodily and the hook 28 into engagement with a securing pin 20 on the jaw 13. The jaw 13 is. cut away adjacent the extension 26 to permit the engagement of the latter with the tube. A nose 31 limits the opening movement of the jaw 23 which it holds in a position as a rest for the scaffold tube. The jaw 13 may be pivoted by a pin 14 or fixed: at right-angles to a similar clamp. Specification 642,367 is referred to.
Patent GB-706203-A (GB)
Title: Automatic winding device for wristlet watches
IPC: G04B5/14
Filed: 1951-05-15
Abstract: 706,203. Watches. JUNGHANS AKT.- GES., GEB. May 15, 1951 [May 15, 1950], No. 11341/51. Class 139 An automatic winding mechanism for wrist watches comprises a watch frame, a winding pendulum capable of oscillatory movement and having a pinion mounted thereon, a reversible imput torque-unidirectional output torque gearing consisting in a rockable member having two intermeshing gears mounted thereon, one of which being in constant mesh with the said pinion and both being alternatively engageable with a gear of the gearing which is intermediate said pinion and the gear of the main spring, said rockable member being mounted on a fixed axle on the watch frame, control means secured on the rockable member being engageable with the said pinion on the winding pendulum for moving the rockable member upon reversal of the movement of the pendulum into the alternative engagement position. The weight or pendulum 1 carries a pinion 3 which constantly meshes with a gear 4 carried by a rockable member 6 pivoted at 7. The gear 4 constantly meshes with a gear 5 also carried by the member 6. A spring member 21 is fixed at one end to the member 6 and at the other end 21a projects into the teeth of the pinion 3. The arrangement is such that when the weight 1 swings clockwise the gear 4 drives a gear 8 anticlockwise through the gear 5 but when the weight 1 swings anticlockwise the gear 4 directly drives the gear 8 anticlockwise. The change in the drive is effected by a rocking movement of the member 6 about its pivot 7 which movement is caused by the action of the teeth of the pinion 3 on the gear 4 and on the spring 21. The gear 8 drives the barrel gear 16 through the train compressing pinion 9, gear 10, pinion 11, gear 12, spring pawl 13, ratchet 14 and pinion 15. Reverse rotation of this train is prevented by a pawl 17 which engages the teeth of the gear 8. The gear 16 may be rotated through the usual keyless mechanism (not shown), during which rotation the teeth of the ratchet 14 slip past the pawl 13 as the ratchet moves anticlockwise.
Patent GB-1082642-A (GB)
Title: Electrically conductive resistance element
Inventor: PAUL PETER FERGUSON MACLACHLAN
IPC: H05B3/28
Filed: 1963-03-22
Abstract: 1,082,642. Flexible resistance element. COAL INDUSTRY (PATENTS) Ltd. June 22, 1964 [March 22, 1963], No. 11423/63. Heading HIS. [Also in Division H2] A flexible electric resistance element comprises a powdered electrically conductive carbonaceous substance, e.g. powdered carbon, pitch coke, calcined petroleum coke, blast furnace coke or foundry coke, having a particle size predominantly not less than 45 microns, compounded with an electrically insulating material such as a natural or synthetic rubber (e.g. butyl rubber) or a thermoplastic resin (e.g. polyvinyl chloride). Preferably the maximum dimension of the particles is not greater than 125 microns. In an example, unvulcanized butyl rubber was compounded in a mixer with various concentrations of calcined petroleum coke or acetylene black, three parts by weight lead stearate per hundred parts mix being added as lubricant, and the mixes were sheeted on conventional sheeting rolls. Metal electrodes were attached by using butyl rubber latex containing 70% by weight on dry rubber of 5 micron calcined petroleum coke. A table gives the mean resistivities of the various mixes and shows that the replacement of acetylene black by the coarser petroleum coke can be compensated in respect of conductivity by increasing the proportion of carbonaceous material only from 50 to 70%. Electrically insulating sheets comprising natural or synthetic rubber or fibres, or a thermoplastic resin, may be placed one either side of the resistance element and the whole laminated together. The laminated sheeting may be manufactured as a roll from which appropriate lengths may be cut, the outer layers of the laminate being cut back for the attachment of terminal members and the exposed edges of the central conducting sheet being electrically shielded by welding a folded strip of a suitable flexible insulating plastic along the edge of the sheet. The dimensions of the resistance element and/or its electrically conductive material content may be adjusted to provide desired values of electrical resistance.
Patent GB-1307033-A (GB)
Title: Clamping devices
IPC: B23B31/117
Filed: 1971-04-26
Abstract: 1307033 Clamps A PLANCK and A FRAUZ [trading as FOUQUET-WERK FRAUZ & PLANCK] 26 April 1971 [27 April 1970] 11447/71 Addition to 1256975 Heading E2A A clamping device as described in the main Patent employs two or more modified axiallycompressed, radially-expansible annular elements I which are of generally Y-shaped cross-section having limbs 3, 4, 6 and a groove 5 beneath the limb 6 to improve resilience. Compression bolts pass through holes 7. The edges of limbs 3 and 4 may be bevelled as shown in Fig. 2.
Patent GB-512585-A (GB)
Title: Improvements in or relating to air raid shelters, and sections and parts thereof
IPC: E04H9/12
Filed: 1938-04-14
Abstract: 512,585. Air-raid shelters. KEALL, F. B April 14, 1938, No. 11524. [Class 20 (i)] An air raid 'shelter is of tubular form comprising contiguous hollow sections each section being formed of concrete members comprising two base portions and two side portions which abut at their upper ends, the abutting ends of all the portions having interfitting parts and fitting together without connecting means. The base portion comprises similar arcuate concrete blocks 1, 4 abutting together at the centre line of the shelter each -having horizontal and inclined outer surfaces 5 and 6 respectively, to fit into a trench with inclined sides. The side portions 2, 3 are also similar and are of channel section with interfitting ends 8, 9, these portions abutting at their upper ends to close the shelter. The side portions may be provided with strengthening ribs. The contiguous hollow sections are simply laid together, without positive connection, to form any length of tunnel which may be only partially or wholly disposed below the ground level and covered with earth or bags of sand. Seats are attached to the inside of the tunnel.
Patent GB-355652-A (GB)
Title: Improvements in the production of artificial filaments, ribbons and like materials
IPC: A47F7/14
Filed: 1930-04-11
Abstract: In the production of artificial filaments, ribbons, or the like by the dry or evaporative method from cellulose derivatives, a liquid is applied thereto during an early stage of their drying, while they still contain a relatively high proportion of solvent. Preferably the liquid is less volatile than the solvent used. Suitable liquids are water, xylene, toluene, petrol, paraffin, alcohols, glycols, glycerine, other polyhydric alcohols, acetic, formic, lactic, or other organic acids, diacetone alcohol, ethers of olefine glycols, of polyolefine glycols or of other polyhydric alcohols, dioxane, phenols, mono-, di-, and triacetin, dichlorethylene, ethylene dichloride, or lubricants such as olive oil, castor oil, animal oils, or mineral oils.  They may be applied within the spinning cell by one or more wicks, the filaments being suitably arranged, say by using ring or perforated plate jets and subsequently aligning the filaments, or by using a jet having orifices in one or more lines. Tension may be applied to the whole length of the filaments or only to the wetted portion; or different tensions may be applied at different parts. The wick, roller, or other liquid-applying device may prevent tension operating on the part nearest the nozzle.  Wicks may be placed on alternate sides of the filament so as to produce friction to resist an increased tension; or independent means for this purpose may be provided.  According to the position of application of the liquid, a reduced, increased, or unchanged lustre is obtained, but in any case there is an improvement in the properties such as extensibility, tenacity, cross section, and regularity of dyeing.  The cellulose derivatives may be the acetate, formate, propionate, or butyrate, or methyl, ethyl or benzyl cellulose.  Specification 330,950, [Class 2 (ii), Cellulose &c.], is disclaimed.  According to the Provisional Specification, formaldehyde or acetaldehyde may be the liquid used.
Patent GB-1348339-A (GB)
Title: Methods of and apparatus for coating surfaces
IPC: B05B7/14
Filed: 1971-04-27
Abstract: 1348339 Coating apparatus and coated products RANSBURG CORP 27 April 1971 [27 April 1970] 11626/71 Headings B2L and B2E Spray coating apparatus comprises nozzles 12, 13 which eject intersecting jets of a coating medium, a nozzle 14 which ejects a jet of a suitable curing agent for the coating medium which jet intersects the main jets and a tube 21 which sprays fluidised granular material at an angle to the plane containing the axes of the main sprays. Coating material is fed under pressure through a pipe 18 to manifold 17 and from thereto nozzles 12, 13. The curing agent is fed under pressure via a pipe 31 to manifold 19 and from there to outlet 14. Air from pipe 23 creates a partial vacuum in tube 21 which draws fluidised powder from a container 24. The main spray material in liquid form may be polyester resin or epoxy resin and the curing agent may be an organic peroxide, or amine or anhydride, respectively, or the resin may be polyurethane or silicone rubber. Additives may be introduced for colouring or Antimony oxide or chlorinated waxes may be introduced for colouring. The granular material may be perlite, clay, sand, talc, mica, calcium carbonate, calcium silicate, glass beads or plastics spheres. The coated surface may be wood, paperboard, plasterboard, polyester, brick, stone, cement or cement impregnated paper.
Patent GB-270705-A (GB)
Title: A process for the manufacture and production of hydrocarbons
IPC: C07C1/32
Filed: 1927-05-02
Abstract: 270,705. I. G. Farbenindustrie Akt.- Ges. May 10, 1926, [Convention date]. Hydrocarbons. - Hydrocarbons, principally such as are liquid at ordinary temperature, are produced by heating metal carbonyls, such as the carbonyls of iron, cobalt, nickel, and molybdenum, in presence of hydrogen or gases, such as water gas, containing hydrogen, or in presence of steam, to a temperature sufficient to decompose the carbonyl with separation of the metal; the amount of hydrogen is less than that theoretically required for the production of methane. Mixtures of metal carbonyls may be used, and substances, such as ammonia, finely divided copper or iron, or alkali metal hydroxides or carbonates, which facilitate the production of the. hydrocarbons and/or the decomposition of the carbonyl may be added. The reaction may be effected under diminished or increased pressure, and the deposited metal may be used again for the production of carbonyls. In an example, iron carbonyl vapour and hydrogen are admitted to the upper end of a shaft furnace which is externally heated to 240‹ C. The resulting fine iron powder is separated in dust chambers, and the issuing gas is freed from hydrocarbons by passing it through a layer of active silica. The less volatile hydrocarbons which may have been adsorbed in the deposited iron may be recovered therefrom by heating.
Patent GB-568296-A (GB)
Title: Improvements in or relating to heat exchange devices
IPC: F28D9/00
Filed: 1942-08-24
Abstract: 568,296. Cooling radiators for aircraft &c. COLTMAN, J. L., BARNSLEY, F. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 24, 1942, No. 11873. [Class 64 (iii)] [Also in Group XXII] In a radiator having spaced elements formed of corrugated sheets 4 in thin sheet-metal envelopes 5 and with end plates 9 flanged over the end elements and secured by soldering, a thin metal sealing strip 10 is folded over an end element and secured to the flanged portions of the end plate 9 by soldering.
Patent GB-1463157-A (GB)
Title: Hand operated wheel-chair
IPC: A61G5/00
Filed: 1974-03-18
Abstract: 1463157 Wheelchairs PERMOBILSTIFTELSEN 18 March 1974 [19 March 1973] 11894/74 Heading B7B In a wheelchair including a pair of main wheels 2 at least one of which being a driving wheel with a seat 8 carried in a sprung and height adjustable manner on a central column 1 mounted on a chassis, further support wheels 3, 4 are positioned to the front and to the rear of the main wheels to allow the chassis to be tilted for either the front wheels 3 or the rear wheels 4, but not both, to be in touch with a planar ground surface. In a preferred embodiment rear non-castor support wheels 4 and forward castor wheels 3 are mounted on the chassis. Alternatively the rear support wheels 4 may be castor. The seat 8 is supported by springs on the central column 1 which may be adjusted in height by a jack 5. The seat is also telescopically adjustable with respect to column 1 and may be rotatable about a vertical axis and slidable in a seat frame 7. For certain patients a wheelchair in which one of the main wheels 2 is constructed as a large driving wheel is of considerable advantage. Arm or hand supports 13 comprising bars which are insertable into support members 17 are connected with elements 15 effecting brakes of the main wheels through a lever 16. A foot rest 18 is pivotally mounted in a frame 12 which in turn is pivotally connected with spring steel supporting members 11 connected to the chassis. A foot plate may also be positioned at the same end as the non-castor wheels 4.
Patent GB-1371463-A (GB)
Title: Unbalance determination
IPC: G01M1/22
Filed: 1972-03-15
Abstract: 1371463 Pulse delaying and thresholding circuits W & T AVERY Ltd 15 March 1972 [10 May 1971] 11933/72 Heading H3T [Also in Divisions G4 and G1] A pulse delay circuit shapes an incoming pulse, integrates it, stores the integral value, and initiates an output pulse when the integral of the next input pulse equals a predetermined proportion of the stored value. Delay circuit.-The input pulse train is shaped by threshold device 7 and fed via switchable resistor chain 10-14 to integrator 15. An input pulse is integrated by the integrator 15 and the trailing edge of the pulse trips monostable 33 and renders transistor 25 conducting so that the integrated voltage is transferred to store capacitor 22 via amplifier 21. At the end of the mono-stable period, bi-stable 35 is reset and capacitor 17 of integrator 15 is shorted by transistor 18. The voltage on storage capacitor 22 passes via F.E.T. 23 and potential divider 27, 28, 32 to an input of comparator 30 and the integrator output is connected to the same input with reversal polarity. The next input pulse is integrated until the integrated voltage is equal to the proportion of the stored voltage and an output is then generated at 31. The voltage on capacitor 22 is updated each cycle. In an alternative embodiment (Fig. 3, not shown) two integrators in parallel serve alternately as integrator and store.  Threshold circuit.-The threshold circuit comprises a peak value amplifier composed of amplifier 89, parallel diode 90 and series diode and resistor 91, 92. The negative peak value is stored in capacitor 93 and an output is produced from switch amplifier 95 when the sum of potentials U 14  and U 15  changes sign. Potentiometer 87 adjusts the threshold value i.e. the proportion of input U 14  at which an output is generated.