baber/WOPTO huggingface dataset:
Patent GB-1071201-A (GB)
Title: The preparation of polymers containing vinyl chloride
IPC: C08F14/06
Filed: 1966-02-22
Abstract: Polymers of vinyl chloride are made by polymerizing vinyl chloride alone or with minor amounts of copolymerizable monomers in the presence of a polymerization catalyst other than a peroxy compound wherein the polymerization is stopped at a desired degree of conversion by adding at least one peroxy compound of the formula, R-O-O-H in which R represents hydrogen, or an alkyl, arylalkyl, cycloalkyl, cycloalkylalkyl group or their alpha-hydroxy, alpha-hydroperoxy, alpha-alkylperoxy or halide substitution products, aryl halides, acyl or aroyl groups or their halide-substitution products, or alkyloxycarbonyl, aryloxycarbonyl, alkylidene, or hetercyclic or alkenyl residues. The polymerization is preferably effected at low temperature, and in the presence of a catalyst comprising a tetravalent cerium salt and an organometallic compound of germanium, tin or lead, and the reaction is generally stopped at a pH below 4.  The polymers are highly crystalline with a syndiotactic configuration.
Patent GB-366768-A (GB)
Title: Improvements in picking mechanism for looms
IPC: D03D49/24
Filed: 1931-03-13
Abstract: 366,768. Loom picking mechanism. BATTY, G. F., Woodholme, Harlow Oval, Harrogate, Yorkshire. March 13, 1931, No. 7849. Addition to 344,568. [Class 142 (iii).] Spring picking motions checking shuttles; pickers and connections.-The picking mechanism of the parent Specification is modified to permit of further energy being imparted to the resilient buffer means without giving additional movement to the shuttle or the picker block. The arrangement is such that the more the initial energy supplied to the buffer means during the absorption of kinetic energy from the shuttle, the less is the further energy subsequently supplied and the total energy supplied to said buffer means is substantially constant for every operation of the mechanism. The shuttle 29a, on entering the box, engages and forces outwardly the picker block 11a, thereby rocking a lever 16a and extending a spring 14a, the latter having a. movable anchorage in the form of a rocking arm 106. Movement of the lever 16a causes a brake 28a to be applied to the underside of the shuttle,. by means of connections 16b, 32a, 30, and at the same time serves to move a member 113 a proportionate distance so that a nib 112 thereon may be positioned below one of a series of teeth 111 on a bell-crank lever 110, the latter being connected to the arm 106 by a link 109. During the subsequent rocking movement of the bell-crank lever 41a by the action of a cam 58a, the nib 112 is brought into engagement with the appropriate tooth and the lever 110 is rocked about its pivot 17a. This movement results in the arm 106 being moved away from a fixed stop 108 and the spring 14a being further extended until the lever 41a rocks an arm 37a in a clockwise direction thereby permitting the brake to be released and the shuttle to be propelled across the shed. A spring arm 11b associated with the picker block 11a is provided to lessen the blow with which the shuttle impinges upon the picker at the end of its stroke.
Patent GB-1254131-A (GB)
Title: Improvements in static network protective relay
IPC: H02H3/00
Filed: 1969-02-13
Abstract: 1,254,131. Protective arrangements; circuit-breaker reclosing arrangement. GENERAL ELECTRIC CO. 13 Feb., 1969 [21 Feb., 1968], No. 7862/69. Heading H2K. A static power-directional relay arrangement comprises means 14, 15 for deriving a first A.C. signal RI a  proportional to the current in a protected system, means 28 for modulating the first signal according to the polarity of a second signal V a  proportional to the voltage of the protected system to produce a bipolarity signal whose average value is proportional in magnitude and sense to the power flow, and means responsive to the polarity of the average value   having a predetermined direction to effect the opening of a network protector 8 or other function. In the three phase arrangement shown, signal deriving means and modulators are provided for each phase, the bipolarity signals being summed at 29 and the resulting output signal being supplied through a filter 30 to a polarity detector 31 and thence to an output stage 32 which controls a trip coil 17 of the protector 8. A time delay circuit 34 may be connected between the detector and output in which case an overcurrent detector 36 causes immediate tripping in the event of reverse fault current. The system shown also includes a static reclosing arrangement which comprises means 61 for deriving a first A.C. signal proportional to the voltage on the network side of the network protector 8, phase shifting means 67, 68 responsive to the first signal to produce second and third signals shifted in phase relative to the first signal by different amounts, a level detector 64 responsive to the difference between the voltages on both sides of the protector 8 and producing a fourth signal when the voltage on the transformer side is higher, a logic circuit 65 to which the second, third and fourth signals are applied to produce an output signal V 2  when these signals have a predetermined polarity, and a timing circuit 69 to initiate the closing of the protector 8 when the output signal has persisted for a predetermined period. The timing circuit 69 controls a closing coil 19 through an output stage 70. A further signal for the logic circuit is derived from a summation unit 66 which sums the voltages on both sides of the protector 8 for a phase other than used for the level detector 64. This reclosing arrangement only allows the protector to reclose if (a) the transformer voltage exceeds the network voltage, (b) the difference voltage has a phase angle in a determined range and (c) the conductors on each side of the protector have the proper phase sequence. The various circuit components are transistorized and are described and illustrated.
Patent GB-1381714-A (GB)
Title: Mixer taps
IPC: F16K11/078
Filed: 1971-03-24
Abstract: 1381714 Valves H & D E WATTS Ltd 22 March 1972 [24 March 1971] 7882/71 Heading F2V  The volume of flow through a mixing valve is varied by rotating a lever 27, Fig. 2, connected to a valve member 10 while the proportions of hot and cold flow from inlets 11 and 12 is varied by swinging the levers to move the members in a straight path, the levers having a journal 28 provided with a sealing ring. The valve member is confined against its seat by a member 21 which has extensions 38 to guide the valve members in its linear movement and to co-operate with faces 40 to limit the members angular movement. A further sealing ring is provided between the member 21 and a cylindrical casing 2 closed by a screwed cover 24 which also serves to clamp a member 23 against the member 21 to provide a bearing for the journal 28. The sealing ring for the latter may be provided in a groove in the journal instead of the in the member 21. The lever 27 has a spherical lower end provided with holes or a slot to receive a pin 36 connected to the valve. In a second embodiment, the member 23 is modified to serve as a guide for a sleeve (45, Figs. 5 and 6) secured to the handle. The extensions 38 may, in this case, be omitted.
Patent GB-295203-A (GB)
Title: Improvements in and relating to producing effects on pile fabrics
IPC: D06Q1/06
Filed: 1928-03-15
Abstract: 295,203. Livsey, H., Holden, G. E., and Worrall, Ltd., J. & J. M. March 15,1928. Designs, producing; singeing. - A design is printed on a pile fabric With a powerful oxidizing agent and the fabric then singed to burn away the pile on the treated parts.
Patent GB-314848-A (GB)
Title: Improvements in or relating to mechanically propelled sweeping machines
IPC: E01H1/05
Filed: 1928-04-03
Abstract: 314,848. Schmidt, K., and Kreis, F. April 3, 1928. Divided on 314,841. Sweeping-machines.-A hollow rotary brush 56, used mainly for sweeping road gutters, has an interior spring-pressed wheel 90 running on the ground and serving, through gearing such as 92, 93, to rotate the brush around the running-wheel. The brush is in sections 94, Fig. 3, insertable laterally in the stock and retained by springs 96, the sections being also displaceable in vertical guides against the action of springs 97. The brush is manipulated by a lever 57. Fig. 1, mounted on a pivot 64 on a shaft 62. Side move - ment of the lever produces a rotation of the shaft 62 which, through a link 69, displaces the brush frame 70 laterally to and from the gutters on guide-shafts 71, 72. Movement of the lever about the pivot 64 causes a rotation of the shaft 72 and, through oppositely-threaded members 75 and lazy-tongs 78, raises or lowers the brush in guides 80 on the frame 70.
Patent GB-473597-A (GB)
Title: Improvements in or relating to induction systems for internal combustion engines
IPC: F02M1/00
Filed: 1936-03-17
Abstract: 473,597. Cylinders; pumps. FLETCHER, A. H. CUDDON-. March 17, 1936, No. 7947. [Class 7 (ii)] An induction system comprises two manifolds 6, 7, located on opposite sides of the cylinders 8 and connected at 10, outside a supplementary throttle valve 9 in one of the manifolds. The velocity of flow of the combustible mixture, or air, is increased at low speed by closing the valve 9, which can be effected automatically by connection with the main throttle valve, or the carburetter choke, or by a thermal device. As shown, separate carburetters 2, 3 and pumps 4, 5 are used, but the manifolds may be supplied by a single carburetter and pump.
Patent GB-470243-A (GB)
Title: Improvements in or relating to press-beds for laundry presses
IPC: D06F71/32
Filed: 1937-03-18
Abstract: 470,243. Ironing shirts. ANDREWS, A. March 18, 1937, No. 7949. Addition to 460,749. [Class 138 (ii)] The work support of an ironing-press, particularly for ironing Marcello-fronted and other dress shirts, comprises a flat surface a having a straight front edge h, hollowed corners j and straight parallel sides k. The length of the surface is roughly that of the shirt front and it is slightly wider than the front. The support is steam or otherwise heated and is provided with means to secure it to the bed of the press and may be provided with studs and brackets to retain the padding or neck-band.
Patent GB-342187-A (GB)
Title: Snap hooks
IPC: F16B45/06
Filed: 1930-03-12
Abstract: 342,187. Snap-hooks. QUICK, H., 1776, Broadway, New York, U.S.A., and COOPER, W. R., Huntingdon, Quebec, Canada. March 12, 1930, No. 8011. [Class 89 (ii).] A snap-hook comprises two members, 21a, 22a, Fig. 8, pivoted at 30a, having an eye at one end and a hook at the other, the hook on each member being provided with teeth 42, adapted to engage corresponding teeth on the other. Projecting lugs 44 facilitate the insertion of the load and projections 41 serve to protect the teeth from contact therewith. The extent of the opening movement may be limited by a T-piece 46 on the shank of one member, engaging a slot in the other member. The eye-bolt 51 may be threaded at its lower end to receive a nut 52, shaped to coact with the surfaces within the eye. In a form shown in Fig. 15, the shank 50 of the bolt is held between two recesses 58, formed on the upper ends of the hook members, such that, when closed, the recesses overlap as shown. In a smaller type of hook, the T-piece 46 and projections 41 are dispensed with, the two hooked members being held together by a spring.
Patent GB-642049-A (GB)
Title: Improvements relating to socketed electrical contacts
Filed: 1948-03-18
Abstract: 642,049. Two-part couplings. GEORGE & BECKER, Ltd., W. & J., and MORRIS, R. H. March 18, 1948, No. 8057. [Class 38 (i)] A socket contact is formed of conductive parts 11, 12 and 111, 112, insulated from each other by an intervening part 16 and 18, the parts being bonded together to constitute a single socket of uniform bore. One socket, Fig. 5, comprises a rod 12a having an upstanding portion 12c which is inserted in an insulating sleeve 16 which in turn is pushed into a recess 11c in a socket portion 11e which is in line with the socket portion 12c. The co-operating plug 13 has a resilient sleeve 13b which bridges the socket portions 11e, 12c. When used in a resistance box, the rod 12a carries and is connected to a resistance coil 17 and the socket portion 11e is connected to a successive rod 12a by a strip 15 which is secured on the socket by a nut 14 and an eyelet 15a. In a modification, Fig. 9, the socket is formed in two split portions 111, 112, which are separated by an insulating lamina 18. The eyelet 151a on the strip link 15 is held in the lamina by projections 151b and the nut 14..
Patent GB-839923-A (GB)
Title: Composition for use in the permanent waving of hair
IPC: A61Q5/04
Filed: 1958-03-13
Abstract: Amides or esters of alpha, alpha1-dimercaptoadipic acid are made according to the examples as follows: (5) alpha1, alpha1-dimercaptoadipic acid, p-toluene sulphonic acid and benzene are reacted in absolute ethanol with the formation of water to give diethyl dimercaptoadipate; (6) alpha, alpha1-dimercaptoadipic acid, benzene and sulphuric acid are reacted in methoxy-ethanol with the formation of water to give di-methoxyethylmercaptoadipate and this compound is, in Example (7), amidated with ammonia; (8) diethyl alpha, alpha1-dimercapto-adipate is reacted with monoethanolamine and the product is dissolved in water and treated with an acid ion-exchange resin until a pH of 6.0 is obtained; the product is bis-N (beta-hydroxyethyl) dimercaptoadipamide; (9) hydrazine hydrate is reacted at 50 DEG  C. with diethyl alpha, alpha1-dimercapto adipate in methanol to give S,S1dihydrazinobisdimercapto adipic acid hydrazide.ALSO:A dry solid composition for use in hairwaving comprises: (1) alpha, alpha1-dimecaptoadipic acid or a mono- or di-salt, ester or amide thereof, and (2) a solid, non-volatile, water-soluble alkaline material such as sodium carbonate or a non-volatile amine, present in excess of the amount required to neutralize any acidic group present in the first component to the extent of 0.3 to 1.5 equivalent weight for each equivalent weight of the first component.  Compounds specified under (1) are salts of the acid with sodium, potassium, calcium, magnesium, ammonium, monoethanolamine, diethanolamine, monoisopropanolamine, di-isopropanolamine and 2-amino-2-methyl-propanediol-1,3; its esters with methyl, ethyl, propyl, butyl, methoxy ethyl and iso-propoxy-propyl alcohols and other alkoxy alkyl alcohols having up to 7 carbon atons, and its amides obtained from ammonia, hydrazine, methyl-, ethyl-, N-propyl-and butyl-amines, mono- and diethanolamine, mono-isopropanolamine and diisopropanolamine. Compounds in which one carboxyl group is esterified and the other is neutralized to form a salt or is amidated are also specified. Amines specified as the second component include monoethanolamine and 2-amino-2-methyl propane diol-1,3, and other alkaline materials specified are ammonium hydroxide, ammonium carbonate and ammonium bicarbonate.  Other reducing agents, e.g. ammonium thioglycollate, may be included.  The composition is applied in aqueous solution to the hair, which is then wound upon a former and may again be treated with the lotion and, after a period, may be neutralized with sodium bromate or perborate or simply rinsed with water and subjected to aerial oxidation.  The composition may include perfumes, opacifying agents, dyes or "hair conditioners".  In examples, the treating composition comprises, (2) diammonium alpha, alpha1-dimercaptoadipate, magnesium thioglycollate, and 2-amino-2-methyl propanediol-1,3; (8) bis-N-(beta - hydroxyethyl) - dimercaptoadipamide, and (9) S,S1-dihydrazinobisdimercapto-adipic acid hydrazide.
Patent GB-1144871-A (GB)
Title: Improvements in or relating to display devices
Inventor: BLOCH CYRIL ETTIENNE
IPC: G09F9/302
Filed: 1966-02-24
Abstract: 1,144,871. Display devices. STANDARD TELEPHONES & CABLES Ltd. 17 Feb., 1967 [24 Feb., 1966], No. 8161/66. Heading G5C. A display device, suitable for displaying monogrammic symbols, comprises two light polarizing means 2, 3 (Fig. 1, not shown) having their planes of transmission at right angles to each other, and positioned between them a further light polarizing means 4 which responds to an applied electromagnetic or electrostatic field by altering the angle of polarization of light passing through it. Means 4 suitably consists of a matrix of elements from which several may be selected at any one time to produce the desired monogrammic symbol. Such elements, which are desirably mounted on electrically conductive glass, may consist of Z-cut crystals of ammonium or potassium dihydrogen phosphate, or gadolinium or yttrium iron garnet; of these four materials, the first three are responsive to electrostatic and the last two to electromagnetic fields.
Patent GB-634727-A (GB)
Title: Improvements in and relating to buoyancy power engines
IPC: F15B21/00
Filed: 1947-03-26
Abstract: 634,727. Buoyancy motors. LUSTIG, E., and GILLIS, W. A. C. (Jauram, K.). March 26, 1947, No. 8252. [Class 69 (i)] A buoyancy power engine comprises a cylindrical container 1, the lower chamber 2 of which is of smaller diameter than the upper chamber 3, partly filled with liquid and two floats 4, 6, one in the upper chamber and one in the lower chamber. The container and contents are intermittently rotated, by a falling body 12 or by a motor - driven rotating shaft, at a speed sufficient to cause all the liquid to ascend into the upper chamber, due to centrifugal forces, so that the float 6 rises and the float 4, deprived of liquid support, drops to the bottom of the chamber 2. When the driving torque to the cylinder is removed, the liquid returns to the lower chamber and the floats regain their original positions. The motion of the floats is transmitted to any suitable point through shafts 5, 7 which pass out of the cylinder. The removal of the driving torque is due to relieving the falling body of part. of its mass, the body then being restored to the original position by the transformation of the kinetic energy of rotation of the chamber and liquid in coming to rest to potential energy of the body. When the body has reached its original position its mass is again increased so causing the cycle of operations to be repeated. The length of each piston is equal to the length of its stroke.
Patent GB-231854-A (GB)
Title: Device for starting automatic apparatus wherein the introduction of a coin causes electrically a band such as a cinematographic film to move
IPC: G07F17/16
Filed: 1925-03-27
Abstract: 231,854. Escofet, J. Ortiz-, Triana, A. E. L., and Triana, R. J. A. April 1, 1924, [Convention date]. Exhibiting moving pictures; coin action, electric-connection; coin-discharging mechanism.- In a starting device for apparatus of the kind in which the insertion of a coin closes an electric circuit for moving a band such as a kinematograph film, a coin 6, Fig. 3, inserted in a shoot makes contact with two conducting rods 4, 5 spaced apart a distance equal to the diameter of the coin, and completes the circuit of an electric motor 9, Fig. 1, which drives a film 10. The coin is retained by a sliding rod 12 passing through the conductor 4 and having a projection 13 at one end to bear against the edge of the 'film which is provided on that edge with a notch 19. The film is moved in the direction of the arrow f until the notch 19 comes opposite the rod 12 which is then pressed into the notch by a spring 16 acting against a pin 14 on the rod, thereby allowing the coin to drop and break the motor circuit. The film comes to rest with the notch 19 just past the rod 12, as shown in Fig. 3, ready for the insertion of another coin.
Patent GB-1022281-A (GB)
Title: Circuit arrangement for amplifiers
IPC: H03F1/07
Filed: 1963-03-01
Abstract: 1,022,281. Valve amplifying circuits. STANDARD TELEPHONES & CABLES Ltd. March 1, 1963 [March 5, 1962], No. 8315/63. Heading H3W. The invention relates to a high-efficiency linear amplifier, i.e. one of the type in which a first valve R 01 , Fig. 2, is biased for linear class B operation and delivers power to the load via an artificial quarter-wave line, and in which an auxiliary valve R 02  is biased to operate in class C and delivers power to the load directly. The drive to the two valves includes in one path a 90 degree phase-shifting element to compensate for the 90 degree shift introduced by the quarter-wave line, so that the outputs of the two valves add in phase at the load. Valve R 01  is operated so that when the exciting voltage is the unmodulated carrier it is just beginning to saturate with a load which is twice the optimum load which would be used to develop maximum output; this load impedance is obtained by using an actual load of half the optimum value and a quarter-wave line of characteristic impedance equal to the optimum value of the load. Valve R 02  is adjusted so as to come into operation when the exciting voltage exceeds unmodulated carrier level, the effect of the current supplied by it to the load being to increase the effective value to the optimum value, so that from this point onwards the first valve R 01  operates into the optimum load. Such an arrangement shows a change in the slope of the input/output characteristic at the point at which the second valve R 02  comes into operation. To compensate for this and linearize the arrangement, according to the invention positive feedback is applied to the first valve R 01 . This may be effected by forming the capacity of the first element of the quarter-wave line of two series-connected capacitors C 1 , C 2  the second of which C 2  is also connected in the cathode circuit of the valve R 01 . Alternatively, an inductor L 1 , (Fig. 3, not shown), may be connected in series with the first capacitor C 1  and the voltage across it fed to the screen grid of the first valve. In this arrangement the feedback of opposite sense through the interelectrode capacities of the valve is neutralized by means of an auxiliary capacitor C 2  connected between anode and grid of the valve.
Patent GB-933287-A (GB)
Title: Improvements relating to propellant charges
Inventor: GORDON STUART
IPC: C06B45/12
Filed: 1961-03-07
Abstract: 933,287. Propellant charges. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 16, 1962 [March 7, 1961], No. 8336/61. Class 9 (1). An inhibiting sheath which allows combustion at an end surface only of a doublebase propellent charge comprises a cup having a base 1 and integral peripheral walling 2 and an extension tube 8 which is bonded to the cup. The tube and cup may be made from cellulose acetate, the former by extrusion moulding or by winding a strip of the material on a mandrel and bonding together successive layers and the latter by injection or compression moulding. The propellent charge is cast within the sheath by placing granular propellant therein and adding a casting liquid containing a nitric ester such as desensitized nitro-glycerine. A spigot 5 with orifice 3 is provided to allow either escape of air when liquid is added at the open end of the sheath during top casting or to allow bottom casting by pumping or suction of the casting liquid through the spigot. The charge becomes bonded to the sheath during the curing process which is preferably carried out in an inert atmosphere and at an elevated pressure. After curing, the spigot 5 is cut-off and the base 1 is sealed by a disc 10.