baber/WOPTO huggingface dataset:
Patent GB-1039886-A (GB)
Title: Improvements in and relating to devices for rapid opening of electric circuit breakers
IPC: H01H5/04
Filed: 1963-06-14
Abstract: 1,039,886. Electrically released switches. COMPAGNIE DE CONSTRUCTION ELECTRIQUE. June 14, 1963 [June 18, 1962], No. 23778/63. Addition to 1,009,988. Heading H2B. A flat torsion spring 8 having one end 8b fixed in a bearing 13 has its other end 8a arranged to coact with a release lock mechanism (Fig. 3, not shown), and to displace an insulating sheath 11 carrying the moving contact or contacts of a circuit-breaker. Sheath 11 rotates in bearings 13, 14 and carries a cam 27 which is driven by an intermediary part 16 to torsion spring 8 until a blocking hook 35 enters an opening 37 of part 16 (Fig. 3, not shown), the contacts then being closed and the torsion spring being suitably twisted, while a tooth 27c on cam 27 is held by a hook on an unlocking lever 29 pivoted at 31 on part 16. Spring 8 is replaceable by a plurality of superimposed flat springs separated by a thin layer or layers of synthetic plastics material.
Patent GB-191426-A (GB)
Title: Improvements in and relating to compositions for coating and like purposes
IPC: C04B28/24
Filed: 1921-09-07
Abstract: An irreversible alkaline silicic acid sol for use in the manufacture of paints is prepared by grinding in an alkaline solution.  Thus, silicic acid obtained by the action of acid on a soluble silicate may be ground in alkali; or sand or silica may be ground and heated with water, and the product ground with a solution of alkali.  Silica or diatomaceous earth may also be peptised by grinding in solutions of water-glass.  The alkali content of the peptising agent must be sufficiently low to ensure that on drying the product shall be insoluble in water.  In an example, 895 parts of 30 per cent sodium silicate of high silica content is agitated with 174.3 parts of dilute hydrochloric acid. The precipitated silicic acid containing adsorbed alkali is washed, and slowly added to 275 parts of sodium silicate in a pan mill, water being added as required.ALSO:An irreversible alkaline silicic acid sol may be prepared by grinding in an alkaline solution, silicic acid obtained by the action of acid on a soluble silicate; or by grinding and heating sand or silica with water, and grinding the product with a solution of alkali.  Silica or diatomaceous-earth may also be peptised by grinding in solutions of water-glass.  The alkali p  content of the peptising agent must be sufficiently low to ensure that on drying the product shall be insoluble in water.  In an example 895 parts of 30 per cent sodium silicate of high silica content is agitated with 174.3 parts of dilute hydrochloric acid.  The precipitated silicic acid containing adsorbed alkali is washed, and slowly added to 275 parts of the sodium silicate in a pan mill, water being added as required.ALSO:An irreversible alkaline silicic acid sol may be prepared by grinding in an alkaline solution, silicic acid obtained by the action of acid on a soluble silicate; or by grinding and heating sand or silica with water, and grinding the product with a solution of alkali.  Silica or diatomaceous earth may also be peptized by grinding in solutions of water-glass.  The alkali content of the peptizing agent must be sufficiently low to ensure that on drying, the product shall be insoluble in water.  In an example, 895 parts of 30 per cent sodium silicate of high silica content is agitated with 174.3 parts of dilute hydrochloric acid. The precipitated silicic acid containing adsorbed alkali is washed, and slowly added to 275 parts of the sodium silicate in a pan mill, water being added as required.
Patent GB-241005-A (GB)
Title: Improvements in direction indicators for road vehicles
IPC: B60Q1/34
Filed: 1924-10-09
Abstract: 241,005. Robinson, W., and Tunstall, J. W. Oct. 9,1924. Road-traffic signals on vehicles. - A directionindicator for road vehicles consists of a lamp-containing casing 20 carried by a radial arm 2a fixed on a horizontal shaft 3 on which two spiral springs 7, 7<a> are mounted, the arm being brought back to its normal central position, after deflection to either side, by the corresponding spring. The shaft 3 is mounted in a casing 4, and the arm 2<a> works in a slot in the cover 3b and has a downwardly-extending arm 8 having projections f at its lower end. One end of each of the springs 7, 7<a> rests upon the bearings 3<a> of the shaft 3 and the other end a, a<1> extends downwardly to contact with a stop 21. When the arm is deflected to the left the pin f of the arm 8 carries the end a<1> of the spring 7a with it and when the arm is freed the spring returns it to normal position. The spring 1 operates similarly on deflection of the arm to the right. The arm may be deflected by means of a pulley 9 and chain 10. For giving corresponding indications at the rear by illuminating arrows &c., the downwardlyextending arm 8 is adapted to close momentarily an electric circuit, to illuminate the corresponding arrow &c., by contacting with a spring terminal 10<a>, 10<b>.
Patent GB-517883-A (GB)
Title: Improvements in or relating to drafting machines
IPC: B43L13/08
Filed: 1938-08-13
Abstract: 517,883. Draughting-machines. TRYTHALL, W. C. Aug. 13, 1938, Nos. 23896/38 and 22260/39. [Class 97 (iii)] In a draughting machine the drawing head carrying the straight edges is provided with a spring-controlled movable member having a catch adapted to engage automatically with perforations or notches in a circular locating member, the movable member carrying a thumb piece adapted to be moved into position in which it causes the movable member to become firmly secured to the locating member with the catch in disengaged position. As shown in Figs. 1 and 3 (23896/38) the rotatable member 1 carrying the straight edges 1<11> is connected by a pin 6 with a cover 7 in which is pivoted at 8 the spring- controlled movable member 9 having catches 11 adapted to engage notches 5 in a locating member 4 secured to the pulley 2. To secure the rotatable member 1 at positions intermediate of the notches 5 the thumb piece 10 of the rocking member 9 is turned about its oval trunnions 12 causing the tail end of the movable rocking member 9 to press by means of a stud 15 on to the locating member 4. In the form shown in Fig. 1 (22260/39), the movable member comprises a head 11<1>, teeth 11 and rods 25 slidable in guides in the cover 7. The other end of the slidable member is connected to a plate 27<1> on which is mounted a clamp 28 having claws 29 adapted on operation of a thumb screw 31, 30 to grip the locating plate 4.
Patent GB-1356747-A (GB)
IPC: C07D211/46
Filed: 1972-05-22
Abstract: 1356747 Bis-phenoxy carboxylic acid derivatives SUMITOMO CHEMICAL CO Ltd 22 May 1972 [22 May 1971 (2)] 23920/72 Heading C2C Novel compounds of Formula I wherein R 1  and R 2  are independently a hydrogen atom or a C 1-4  alkyl group and A is a group of the formula wherein, R 3  is a hydrogen atom, and R 4  is an amino-C 1-4  alkyl group (the amino group of which may optionally be substituted by one or two C 1-4  alkyl groups or by a benzyloxycarbonyl group), a heterocyclic group, or an alkyl group substituted by a heterocyclic group, or alternatively each of R 3  and R 4  may, through an intermediary hetero atom, together form a heterocyclic group and if said hetero atom is a nitrogen atom, this group may be substituted on the nitrogen atom by a C 1-4  alkyl group; or a group of the formula (wherein R 5  is a hydrogen atom, a hydroxyalkyl group or a derivative thereof and R 6  is a hydroxyalkyl group or a heterocyclic group; or R 5  and R 6  may together form a cyclic group or may, through a further intermediary hetero atom, together form a heterocyclic group and if the said hetero atom is a nitrogen atom, this group may be substituted on the nitrogen atom by a C 1-4  alkyl group); or an acid addition salt thereof are prepared by one of the following methods (a) a derivative of an acid or the acid of Formula II is reacted with either an amine HN.R 5 .R 6  or an alcohol of formula HO.CH.R 3 R 4  or (b) an amine group in R 3 , R 4 , R 5  or R 6  is.alkylated or acylated or (c) a compound of Formula V wherein X is alkylene is heated and in all cases optionally converting to a salt or the free base. Pharmaceutical compositions in conventional forms for oral or parenteral administration and having cholesterol lowering activity in the body comprise an above novel compound and a diluent or carrier.
Patent GB-827557-A (GB)
Title: Improvements in or relating to cathodes for electron guns of cathode ray tubes
Inventor: DEBOO WILLIAM GEORGE
IPC: H01J29/48
Filed: 1957-07-29
Abstract: 827,557. Cathodes for electron guns. PYE Ltd. July 29, 1958 [July 29, 1957], No. 23949/57. Class 39(1). The cathode 1 is surrounded by a metal cylinder 3 having a polished inner surface and securely attached to the cathode at its lower end, the cylinder 3 being secured by rigid supports 4 and posts 5 to an insulating disc 6 carried in the grid shell 10. The cylinder 3 may be formed integral with the cathode by turning an extension of the cathode back on itself. The cylinder 3 may be directly supported in the insulating disc 6.
Patent GB-1255683-A (GB)
Title: Epoxy-phosphonic acid derivatives
Inventor: SCHOENEWALDT ERWIN FREDERICK
IPC: C07F9/655
Filed: 1969-05-12
Abstract: 1,255,683. Phosphonic acid derivatives. MERCK & CO. Inc. 12 May, 1969 [15 May, 1968], No. 23976/69. Heading C2P. The invention comprises compounds of the Formula (I) where X is chlorine, bromine or iodine, X<SP>1</SP> is hydrogen, chlorine or bromine, and R 1  and R 2 , which may be the same or different are hydrogen, an optionally substituted aryl, aralkyl, or alkenyl radical, an alkynyl radical or an alkali metal, alkaline earth metal, ammonium or organo-substituted ammonium ion. Compounds in which X<SP>1</SP> is hydrogen may be prepared by reacting a compound of the Formula (II)  with halogen and epoxidizing the product, while those in which X<SP>1</SP> is chlorine or bromine are obtained by reacting a compound of Formula (III) with chlorine or bromine and epoxidizing the product. Cis - 1,2 -  epoxypropyl phosphonic acid, or a non-toxic salt thereof, may be obtained by reacting a compound of Formula (I) in which X<SP>1</SP> is hydrogen with a dehalogenating agent. Cis- 1,2-epoxy propyl phosphonic acid may also be prepared by reacting a trans compound of the Formula (IV) or Formula (V) where Y is chlorine or bromine with an alkali metal borohydride in aqueous medium. Cis-propenyl-1-phosphonic acid may be prepared by reacting di-n-butyl-cis-propenyl phosphonate with concentrated hydrochloric acid. 2-Halo-propenyl- 1 -phosphonic acids may be obtained by reacting the corresponding propenyl-1-phosphonic acid with halogen. 2-Halo-propenyl- 1 -phosphonic acid dichlorides may be prepared by reacting the appropriate 2-halo-propenyl- 1 -phosphonic acid with phosphorus pentachloride. Dibenzyl and diphenyl-2-halo-propenyl-l-phosphonates may be prepared by reacting the appropriate 2-halo-propenyl-phosphonic acid dichloride with benzyl alcohol or phenol.
Patent GB-880204-A (GB)
Title: Improvements relating to coupling grooves in conduits
Inventor: FROST RAYMOND B
IPC: F16L17/04
Filed: 1959-07-13
Abstract: 880,204. Pipe couplings; metal pipes. VICTAULIC CO. of AMERICA. July 13, 1959, No. 23984/59. Addition to 797,914. Classes 99(1) and 99(2). The coupling groove in a conduit section has a flat bottom 3, and sides 4, 5 which extend as continuous curves from the bottom 3 to their junction with the outer surface of the tube at 4a, 5a. The grooving of the tube is effected preferably by rolling as in the parent Specification, downwardly inclined annuli 6 on the outside of the tube, and annular surfaces 8 on the inside, thus being formed. Two conduits are coupled together by a housing 11, Fig. 2, having key sections 12, the sharp edges 13 of which bite into the curved walls of the grooves in the tubes. Disposed within the housing is a resilient gasket 15, the lips 16 of which seat on the ends of the pipes, while the opening in the gasket overlies the space 17 between the tubes.
Patent GB-408009-A (GB)
Title: Improvements in or relating to the dehydration of gas
IPC: F26B21/08
Filed: 1933-08-11
Abstract: 408,009. Drying gases. WHESSOE FOUNDRY & ENGINEERING CO., Ltd., Darlington, and GRANT, A. G., 86, Coniscliffe Road, Darlington. Aug. 11, 1933, No. 24089/32. [Class 34 (i).] In gas dehydration apparatus in which a heat transferring fluid is circulated through two interchangers in a closed path, the gas before dehydration passes over the tubes in one interchanger and after dehydration over the tubes in the other interchanger, and in each interchanger both flow and return tubes for the circulating fluid are provided. In the form shown, gas supplied through duct b<1> passes over the gilled tubes c in the interchanger band through duct b<2> to the dehydrator, in which dehydration is preferably effected by cooling. Gas returning through duct a<1> passes over the pipes c in the interchanger a to the outlet a<2>. The circulating liquid, which is preferably of low viscosity, passes from the pump c<9> to a chamber c<4>, through pipes c, to the chamber c2, through more pipes c to the chamber c<5> and so to the second interchanger and back to the pump.
Patent GB-306791-A (GB)
Title: Improvements in pencil cases
IPC: B43K21/00
Filed: 1928-08-21
Abstract: 306,791. Etablissements M. Gaupillat. March 27, 1928, [Convention date]. Addition to 269,216. Pencil holders.-The base of the cone, which supports the spare leads in the modification of the parent invention, shown in Figs. 3 and 4 of Specification 296,220, is enlarged so as to fit snugly in the interior of the point member and act to centre the lead-supporting rod.
Patent GB-822276-A (GB)
Title: Process for bonding hydraulic cementitious materials to base material
IPC: C09J131/04
Filed: 1956-08-07
Abstract: 822,276. Plastering. LARSEN, P. H., and GROOME, G. G. Aug. 7, 1956, No. 24166/56. Class 20(4) Keying of hydraulic cementitious material such as lime gypsum plaster or Portland cement to a base material such as steel, concrete block, cinder block, wood, brick, "rock lath" or monolithic concrete is effected by first coating the base material with an aqueous emulsion of polyvinyl acetate, the deposited solids of which re-emulsify when the wet cementitious material is applied. Plasticizers such as polychlorinated diphenyl, tricresyl phosphate and hexylene glycol may be added to the emulsion, and a quantitative process example is given. Specification 822,277 is referred to.
Patent GB-501608-A (GB)
Title: Apparatus for the manufacture of scanning discs for television apparatus
IPC: H04N3/04
Filed: 1937-09-06
Abstract: 501,608. Television. RADIOAKT.- GES. D. S. LOEWE. Sept. 6, 1937, No. 24291. Convention date, Sept. 9, 1936. Drawings to Specification. [Class 40 (iii)] [Also in Group XXII] The Specification as open to inspection under Sect. 91 comprises the following subjectmatter. A scanning disc with spiral scanning holes and synchronizing slots is lighted by a lamp to form a ray of less width than the slots. A photo-cell is coupled to an amplifier with oscillatory circuits tuned to the frame frequency and provided with screening grid tubes. The frequency reducer comprises a pentode to the outer grid of which the amplified filtered slot frequency is conducted. The anode circuit is adjusted to one quarter of the slot frequency. The impulses are led to a circuit tuned to the reduced frequency. This subject-matter does not appear in the Specification as accepted.
Patent GB-1136755-A (GB)
Title: Articles reinforced with cord ply
IPC: B29C70/22
Filed: 1965-12-02
Abstract: 1,136,755. Uniting threads by adhesives. VAL. MEHLER A.G. 2 Dec., 1965 [4 Dec., 1964], No. 24335/68. Divided out of 1,136,754. Heading D1R. A cord ply for reinforcing resilient plastics or rubber, e.g. for reinforcing pneumatic tyres, conveyor belts or driving belts, comprises a number of parallel filaments 10 adherently held together by connectors 11 which extend transversely to the filament direction, which do not touch each other at least for the greater part of their length, and which consist at least partly of thermoplastic material and are firmly stuck through thermal softening to the filaments 10 at the points of contact, each connector 11 extending on one side of the cord ply. In one embodiment, Fig. 1 (not shown), the cord ply comprises rayon filaments (1) which are held by polyethylene filaments (2) of smaller cross-section than the filaments (1). To produce the cord ply, the filaments (1) are ordered by a weaving comb and guided over a support. The filaments (2) are pressed individually or in groups onto the filaments (1) by a ram heated above the the softening temperature of the filaments (2) so that the filaments (2) are flattened at the crossing points. This operation may be effected by a device comprising two conveyor chains extending transversely of the filaments (1) and which have grippers. In a second embodiment, Fig. 2 (not shown) loosely woven strips (4) are stuck to the cord filaments (3) by thermal softening. In a further embodiment, Fig. 3 (not shown) a coarse mesh woven net comprising thermoplastic connector filaments (6) and warp filaments (7), which latter need not be of thermoplastic material, is applied to the cord filaments (5) by welding. The net may be drawn from a reel and placed on the moving filaments (5). In a still further embodiment, Fig. 4 (not shown), tangled dry fibres (9) which are at least partly of thermoplastic material are blown onto or applied in fleece form to the cord filaments (8). Slight pressure is applied to the fibres (9) by a heated roller or bar. Alternatively, a thermoplastic fibre fleece is applied by heat softening between heated rolls before the filaments (8) are dipped. In another embodiment, Figs. 5 (not shown) and 6, thin polyethylene strips 11 are bonded to the filaments 10 by heat softening. In other embodiments (not shown), the connector layer comprises a highly porous tissue paper, e.g. manila hemp; the connectors are very thin and are disposed on both sides of the cord ply; or, for reinforcing conveyor belts, the connector filaments have a larger cross-section than the cord-ply filaments. The cord ply filaments may be multifilaments, monofilaments, yarns or threads and may be of natural fibres, glass fibres, metal wires or synthetic filaments, e.g. rayon or polyamide.
Patent GB-640864-A (GB)
Title: Oil supply control system for oil burning installations
IPC: F23K5/06
Filed: 1948-09-16
Abstract: 640,864. Liquid-fuel supply to burners. WALLSEND SLIPWAY & ENGINEERING CO., Ltd., and CORLETT, E. W. Sept. 16, 1948, No. 24336. [Class 75(i)] An oil supply control system for oil burning installations incorporates low pressure pumping means and high pressure pumping means arranged in hydraulic tandem, a heat exchanger intercalated between the high pressure and the low pressure pumping means, pipes by-passing the pumping means, pressure relief valves located in such by-pass pipes, and pressure control means to vary the pressure of oil delivered by the high pressure pumping means. The oil is supplied through an inlet pipe 6 to a low pressure pump 1 which feeds the fuel at low pressure to a preheater 3 and thence to the inlet of a high pressure pump 8. The latter supplies oil burning installations 10, 10<SP>1</SP> through pressure varying means 14, 14<SP>1</SP>, respectively. When the means 14, 14<SP>1</SP> are adjusted so that the burners 10, 10<SP>1</SP> consume less oil than can be supplied by the pump 8, the discharge pressure of the pump 8 rises and a pressure relief valve 13 in a byepass 12 opens to allow oil to escape to the inlet side of the pump 8. This results in an increase in pressure at the outlet side of the pump 1 causing a pressure relief valve 7 in a byepass 5 to open to allow fuel to escape to the inlet side of the pump 1.
Patent GB-660138-A (GB)
Title: Two-way time-sharing electric communication system
IPC: H04J3/18
Filed: 1948-09-17
Abstract: 660,138. Two-way transmission. STANDARD TELEPHONES & CABLES, Ltd. Sept. 17, 1948 [Jan. 13, 1948], No. 24408/48. Class 40 (iv). In a system in which signals are divided into trains and time-compressed so that in the period normally occupied by one train compressed trains can pass successively both in the transmit and receive directions, synchronizing signals for one of the stations are obtained from the signals received from the other, e.g. by differentiation of thin trailing edges. As shown, signals from a source 19 in the first station are impressed by the recording head 35 on a circular rotating magnetic strip and the pick-up head 38 is rotated with equal and opposite angular velocity to that of the strip. An erasing device 40 is located diametrically opposite the recording head. The output from the pick-up head 38, consisting of periods of signals having twice the original frequency, alternating with periods of absence of signal is fed via transmitting equipment 22 and a hybrid device 23 to the aerial 25. Signals received by the aerial 26 of the second station pass via the hybrid device 28 and receiving equipment 27 to the recording head 42 where they are recorded on a further rotating magnetic strip, cleared of previously recorded signals by the erasing device 45. The signals, picked up by the pick-up heads 47, 48, moving at half the angular velocity of the tape, are then fed to the output circuit 31, restored to their original form. Similar arrangements are provided for transmission in the opposite direction. The second station is arranged to detect the incoming signals by a device 32 whose output is fed to a differentiator 33 which produces a pulse each time transmission from the first station ceases. This pulse synchronizes the multivibrator 34 which feeds the synchronous motor 30 driving the recording and pick-up mechanism. Arrangements are provided, Fig. 7 (not shown), for providing a blanking pulse to the output circuits of the pick-ups every time they pass the signal erasing devices to eliminate undesirable noise therefrom. In another embodiment, Figs. 8, 10 (not shown), the frequency multiplication or division is effected by setting up a charge pattern on a mosaic by means of a recording beam moving at one speed and taking it off by a beam moving at a different speed.