baber/WOPTO huggingface dataset:
Patent GB-306181-A (GB)
Title: Improvements in valve devices for vacuum ejectors, vacuum pumps and the like
IPC: F04F5/48
Filed: 1927-11-17
Abstract: 306,181. Brackenbury, A. G., and Westinghouse Brake & Saxby Signal Co., Ltd. Nov. 17, 1927. Fluid-pressure.-In vacuum braking apparatus, a graduated flow of fluid from the train pipe is effected automatically in releasing the brakes. A graduated flow of fluid to the train pipe may also be permitted in applying the brakes while the flow from the train pipe is controlled automatically in accordance with the vacuum therein. A valve device 20, Fig. 1, is provided between the ejector and the train pipe 8 and is adapted automatically to control communication therebetween. The supply of motive fluid to the ejector is controlled by a rotary valve device 12, Fig. 3, having ports 13 corresponding to the number of ejector nozzles 2 - - 5 and operatively connected by the handle 14 to another rotary valve device 15, 18 which permits the graduated supply through ports 16, 17 of air to the train pipe for applying the brakes. The valve 20 having ports 24, 25 comprises a member adapted to permit the graduated opening and closing of the communication between the ejector and the train pipe 8 connected to a piston 23 subject on its upper side to the pressure conditions in the train pipe and on its lower side to atmospheric pressure, and maintained in its lowest position by a spring 22. In a modification, the automatic graduating valve comprises a rotary member 29, Fig. 5, in a casing 28 connected by a rod 30 to a piston 23 and maintained open by a spring 22. Atmospheric pressure on the upper side of the piston 23 closes the valve as the pressure in the train pipe falls.
Patent GB-1429375-A (GB)
Title: Protective device for flexible supply lines
IPC: E21F17/06
Filed: 1973-06-29
Abstract: 1429375 Stress limiting devices COAL INDUSTRY (PATENTS) Ltd 14 June 1974 [29 June 1973] 31000/73 Heading B8B A protective device (shown exploded in Fig. 1) for flexible supply lines, includes a guide 4, a mounting 2, mounted on the guide 4, locating means 10 for a supply line (e.g. an electric power cable 16 for a movable mineral mining machine), the locating means 10 being movable relative to the mounting 2, resilient biasing means 8 and a connector 17 on the locating means 10 adapted for connection in use to a control of the machine. In use the device is connected to a cut-out for the machine by a chain with a certain amount of slack (not shown) and above a certain load on the cable 16 the connection 17 trips the cut-out thus stopping the machine from further movement. Once the cause of the excessive load is removed the biasing means 8 restores the slack in the chain. In the embodiment illustrated a water supply hose is protected by further locating means 22, retaining plate 24 and biasing spring 20.
Patent GB-1387856-A (GB)
Title: Remotely controlled lighting system
IPC: H05B37/02
Filed: 1972-07-03
Abstract: 1387856 Transistor pulse discriminating circuits J M MALATCHI 3 July 1972 [12 July 1971] 31101/72 Heading H3T [Also in Division H2] A circuit 25 for energizing a relay 225 when a signal applied to an input terminal 118, 119 or 120 exists for longer than a predetermined time comprises a transistor 206 which is switched off by the signal to enable a capacitor 214 to be charged from a D.C. supply fed to a terminal 210. If the input signal exists for a sufficient time, the voltage across the capacitor rises to the voltage at the control electrode 217 of a programmed unijunction transistor 218 which is therefore switched on and in turn switches on a transistor 224. The discharge of a capacitor 229 through the transistor 224 switches off a transistor 235 and therefore switches on a transistor 245 which in turn switches on a transistor 248 to energize the relay 225 via a D.C. supply terminal 110. The relay closes contacts 222 in the six channels of a stage lighting system (see Division H2).
Patent GB-402588-A (GB)
Title: Process for the production of mullite
IPC: C04B35/18
Filed: 1932-11-04
Abstract: In the manufacture of refractory materials containing a high proportion of mullite from silica or aluminium silicates and added alumina, accelerators are used comprising aluminates, alumino silicates such as the natural or artificial zeolites, and ultramarines such as lapis lazuli are used.  The composition is finely ground, moulded and fired at Seger cones 14 to 30 for 2 to 30 hours.  In addition, known mineralizers such as fluorine compounds, sulphates, phosphates, cerium and zirconium compounds or already burnt grog may be used.  Part of the material may be prefired before the final firing.  In the firing it is preferred to slow down the temperature rise between 740 and 860 DEG  C.  In examples are (1) sillimanite, fused alumina, sodium aluminate, calcium zeolite; (2) fired kyanite, electro-corundum, calcium aluminate, ultramarine blue; (3) anhydrous alumina, quartz sand, sodium permutite, potassium aluminate; (4) fired andalusite, anhydrous alumina, potassium-sodium-aluminate, barium zeolite; (5) fired Rakonitz argillite, alumina hydrate, ultramarine green, barium aluminate; (6) Zinzendorf clay, alumina hydrate, potassium aluminate, natrolite; (7) fired mixture of Example 1, Zinzendorf clay, alumina hydrate, ultramarine green, barium zeolite, sodium aluminate; (8) Zinzendorf clay, anhydrous alumina, ultramarine violet, barium aluminate, mullite grog.  Details of fineness, and firing time and temperature are given for each example.
Patent GB-795046-A (GB)
Title: Improvements in or relating to gloves
IPC: A41D19/02
Filed: 1956-10-12
Abstract: 795,046. Gloves. BAKKEN & CO. AKTIESELSKAP. T. Oct. 12, 1956 [Oct 15, 1955], No. 31174/56. Class 141. The portion of a glove which covers the front of the hand is made un from two blanks comprising the palm, thumb 4<SP>1</SP>, first finger 14<SP>1</SP> and fourth finger 15<SP>1</SP>, Fig. 3, and the second and third fingers, Fig. 4. The outside edges 1<SP>1</SP>, 2<SP>1</SP> of the main blank diverge towards the wrist and slots 16<SP>1</SP>, 17<SP>1</SP>, 22, 24, 26 and 27 are provided to give freedom of movement.
Patent GB-1434953-A (GB)
Title: Solutions for forming heat-resistant polymers
IPC: C08G18/64
Filed: 1973-06-29
Abstract: 1434953 Laminating glass cloths NITTO ELECTRIC INDUSTRIAL CO Ltd 29 June 1973 [1 July 1972] 31252/73 Heading B5N [Also in Divisions B2 and C3] Laminates are made from glass cloths impregnated with a solution (S) for forming a heat-resistant polymer which comprises (1) a solution of a prepolymer (P) and (2) a blocked polyisocyanate or polyisothiocyanate compound, where (P) is prepared by reacting excess polyvalent glycine derivative with the terminal -NCO groups of an oligomer itself prepared by the reaction of a tribasic acid anhydride (A) with excess diisocyanate; (P) has a amide group, an imide group, and a hydantoin ring in its main chain and a glycine derivative at the chain terminations, (1) and (2) being within 20% of stoichimetric equivalence. Anhydride (A) may be partially replaced with tere- or isophthalic acid. The glycine derivative may be [R 1 OOC(R 2 ) 2 CHN] 2 R 3 , where R 1  and R 2  are H or lower alkyl and R 3  is organic. Blocked polyisocyanate or polyisothiocyanate (2) may be the reaction product of a polyisocyanate or polyisothiocyanate with ROH, where R is aromatic, alicyclic, or aliphatic, e.g. phenol, cresol, xylenol, or an alcohol. (2) may contain an imide or amide group or hydantoin ring in its main chain, and may be made by heating excess diisocyanate in a blocking solvent, e.g. phenol, cresol, xylenol or an alcohol, with 1,2,3,6- butanetetracarboxylic acid or dianhydride, a tribasic anhydride, or a glycine derivative.
Patent GB-1118086-A (GB)
Title: Terry towelling loom
IPC: D03D27/08
Filed: 1965-07-22
Abstract: To vary the beat-up position of the reed in a gripper shuttle loom weaving terry fabric, the reed and the shuttle guide are mounted on a shaft in such a way that they can be moved bodily backwards and forwards while still performing the same angular oscillation with the shaft.  The bodily movement is effected by toggle links which are aligned for beating-up the fast pick, and are broken for the two loose picks.  The toggle links are operated by a cam rotating at one-third of the loom speed, but can also be kept aligned by the pattern mechanism for weaving zones without pile.
Patent GB-451688-A (GB)
Title: Improvements relating to the maintenance of a uniform load distribution between parallel-connected mechanically operated electrical converters and electric discharge rectifiers
IPC: H02M7/02
Filed: 1934-11-01
Abstract: 451,688. Converting. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Nov. 1, 1934, No. 31387. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 7, 1935]. [Class 38 (ii)] Comprises an arrangement for maintaining load division between a compounded mechanical converter 2, 3 and a grid controlled rectifier 4. The relay 20, which controls the synchronous motor 7 driving the grid potential distributer 6, has a winding 13 energized from across the series field 15 of the generator 2, and a further winding 12 energized in dependence on the voltage of the D.C. line.
Patent GB-340351-A (GB)
Title: Binder for pamphlets and booklets
IPC: B42F11/02
Filed: 1929-10-16
Abstract: 340,351. Filing papers &c. DAVIES, F. B., 22, Penwortham Road, Sanderstead, Surrey. Oct. 16, 1929, No. 31508. [Class 146 (i).] Fold-engaging files. -In fold - engaging files of the kind provided with one or more pivoted retaining wires or rods engaging fastening means, the ends of the retaining wires are adapted to be passed under or through the fastening means by bowing the wires laterally so as temporarily to reduce their length. A bracket 14, Figs. 1 and 2, provided with upstanding lugs 15 each formed with a hole 16 for the reception of a pin 17, is secured to the back 13 of the binder, and a number of spring wires 18 which are formed at one end with an eye 19 for engagement with the pin 17 are spaced apart by washers 20 ; the other ends of the wires are adapted to engage each in a hole formed in a catch member 22 also attached to the inside of the back 13. Any one wire may be disengaged from the catch member 22 by deflecting the middle portion of the wire so as temporarily to reduce its length. In a modification the wires are formed into helices which extend with their axes at rightangles to the straight portions of the wires, so as to constitute both a pivotal bearing and a spacing means. The pin which acts as a pivot for the wires is screwed at one end and screws into a correspondingly screwed lug in the bracket. The catch member for the retaining wires may be tubular, Z-shaped, or may consist of a length of wire formed at each end with a loop for attaching the member to the back of the binder, the middle portion being raised from the inner surface of the back of the binder and being of corrugated or wavy formation for positioning the free ends of the retaining wires. In the modification shown in Fig. 6, the wire 18 is looped at 31 and continued at 32 parallel with the wire 18 to form an eye 34, which engages the free end of the wire 18 as shown ; the lower limb 32 is attached directly or indirectly to the back 13. The bracket and catch member may be formed in one piece or may be attached to a sheet or frame adapted to be fastened detachably to the binder; where the back of the binder is curved the bracket and catch member may be correspondingly curved. The retaining wires may be made of non-corrosive springy material, such as phosphor bronze or rustless steel. To prevent the wires from rattling when in engaged position, an upstanding flange may be provided on the members 14, 22, upon which the wires bear near their corresponding ends.
Patent GB-814739-A (GB)
Title: Production of laminated structures
IPC: B32B27/00
Filed: 1956-10-17
Abstract: 814,739. Laminates. MONSANTO CHEMICAL CO. Oct. 17, 1956 [Oct. 17, 1955], No. 31583/56. Class 140. Laminated structures having a foamed thermoplastic cellulose derivative or resinous stratum are prepared by pressing a sheet of paper or textile material into contact with a surface of a foamed thermoplastic cellulose derivative or resinous sheet material, the temperature of the surface of the paper or textile sheet material being sufficiently high to raisa the temperature of the thermoplastic material with which it is in contact to one at which the two materials will bond whilst being pressed into contact. Both sides of a sheet of foamed thermoplastic material may be coated simultaneously in this way. The Specification includes lists of cellulose derivatives, thermoplastic resins, including synthetic rubbers, and textile materials that may be used. In a modification, paper or a textile material is cemented to a desired external covering material, e.g. metal foil or plastic sheets by known means. This two-ply covering material is then laminated to a foamed thermoplastic material by the method previously described, the paper or textile material being in contact with the foamed thermoplastic material. As shown, a sheet of foamed thermoplastic cellulose derivative or synthetic resin 22 is driven between pressure-applying nip rollers 34, 35 and 39, 40 by driving rollers 30, 31. Sheets of covering material 36, 37 are drawn over rollers 34, 35 and 39, 40, and are pressed on to the surfaces of sheet 22. The sheets of covering material are heated above the softening point of the thermoplastic material by passing between pairs of heated platens 38 and rollers 34, 35 and 39, 40 are heated to maintain the temperature of the covering sheets. In a modified apparatus, the covering material is not heated before bringing it into contact with the thermoplastic material, but the rollers 39, 40 are replaced by a pair of heated light pressure-applying platens.
Patent GB-528034-A (GB)
Title: Improvements in rotary liquid pressure motors
IPC: F04C15/06
Filed: 1939-12-06
Abstract: 528,034. Rotary engines. RALSTON, G. Dec. 6,1939, No. 31588. [Class 110 (ii)] Relates to the rotary engine described in Specification 528,033. The stator surface between the points 8, 9 is concentric with the rotor. The vane has an arcuate pivoted shoe 25. The inner end of the vane is T-shaped and forms a piston in a chamber 15a. When working fluid is shut off from the passage through the vane by the stationary sleeve 18, fluid, which has constant access to the spaces 15b, presses the vane inwards.
Patent GB-428612-A (GB)
Title: Yieldable pit prop
IPC: E21D15/32
Filed: 1933-11-13
Abstract: 428,612. Pit - props. MEYERHOFER, A., and MEYERHOFER, E. A., (trading as MEYERHOFER & CO.), 3, Seehofstrasse, Z³rich, Switzerland. Nov. 13, 1933, No. 31629. Convention date, June 30. [Class 20 (ii)] A telescopic pit-prop of the kind described in Specification 13188/10, [Class 20 (ii)], in which a tapered portion of one prop-member coacts with a clamping member which abuts on the end of another propmember, has the tapered member c of hollow section and provided with an enlarged extension d which acts as a guide within the other propmember a, which is also hollow. The bolts of the clamp g may be provided with hammer-shaped heads to pass through and engage over the edges of elongated grooves l in the clamping members. The coacting surfaces of the clamping member and of the conical propmember may be roughened to increase the friction.
Patent GB-506035-A (GB)
Title: Improvements relating to projecting lamps
IPC: F21S8/00
Filed: 1937-11-17
Abstract: 506,035. Projector, lamps. HARLEY, M. C. Nov. 17, 1937, No. 31672. [Classes 75 (ii); 75 (iii), and 75 (iv)] A projector lamp, suitable for use as a landing or take-off lamp for aircraft, vehicle headlamp, searchlight, &c., comprises a doubleended lamp e, e.g. a high-pressure mercury vapour lamp providing a substantially pointsource of light, so arranged that the source is at the focus f of a parabolic reflector a, the latter being mounted to pivot about a diametral axis passing through the focus f. The reflector is formed with bushes p<1>, p<2> which embrace tubular elements (d<1>, d<2> clamped in bearings c<1>, c<2> on the ends of the arms of a fork b, a remote control, such as a Bowden cable, being provided for tilting the reflector. The complete lamp is mounted so that it may be swivelled about a vertical axis n. The lamp e is carried by brackets h attached, so as to provide for initial adjustment of the lamp, by slotted connections to a bridge-piece which unites the tubular members d<1>, d<2>, the latter serving to accommodate the current leads m<1>, m<2>. When the lamp is fitted to aircraft, the members d<1>, d<2> may be rotatable in the bearings c<1>, c<2> and crank means provided to enable the lamp to be " trimmed " when the aircraft is diving or climbing at a steep angle. Specifications 372,285 and 453,940 are referred to.
Patent GB-1280538-A (GB)
Title: Improvements in permanent magnet material powders
IPC: H01F1/055
Filed: 1969-06-23
Abstract: 1280538 Magnetic compositions GENERAL ELECTRIC CO 23 June 1969 [21 June 1968] 31677/69 Heading H1H [Also in Division C7] A magnetic powder is prepared by treating particles of a cobalt-rare earth compound with zinc or arsenic in liquid or vapour form. The compound is for example Co 5 Y, Co 5 Sm, or Co 5 M where M is cerium-rich mischmetal. The powder may be treated first with a mixture of acids and then mixed with zinc and heated; alternatively the powder may be heated in a quartz tube on the inside wall of which zinc is deposited. Heating takes place in a vacuum or in a stream of hydrogen or helium. The zinc or arsenic forms a film on the surface of the particles or diffuses into the surface and so stabilizes the magnetic properties, especially the coercive force. The powder may be bonded with epoxy resin, elastomers, or non-magnetic metals to form permanent magnets.
Patent GB-964101-A (GB)
Title: Improvements in and relating to electrical relays incorporating shock damping devices
Inventor: YEATES KENNETH THOMAS
IPC: H01H53/10
Filed: 1959-09-17
Abstract: 964,101. Buffers. ENGLISH ELECTRIC CO. Ltd. Sept. 16, 1960 [Sept. 17, 1959], No. 31715/59. Heading F2S. [Also in Division H2] A backstop which does not transmit vibrations to a member biased against it comprises a biased pivoted lever which is engaged by the member. As shown a pin 10a projecting from the rotor disc 10 of an induction relay is biased to the left by a spring (not shown) and engages the end 13g of a lever 13 pivoted at 13d on a fixed bracket 13a. The lever 13 is biased by a weight 13e so as to bear on a stop 13f formed by one end of the bracket 13a, the other end of which carries an adjustable stop screw 13b. Vibration of the relay causing movement of the bracket 13a to the right or left does not result in movement of the rotor 10 since in the former case the lever 13 pivots in an anticlockwise direction and in the latter case the pin 10a and lever end 13g separate for a short period during which the inertia of the disc assembly prevents any appreciable movement due to its biasing spring.
Patent GB-819305-A (GB)
Title: Improvements in or relating to anodic treatment of tin and tin alloys
Inventor: RUSSELL JOHN JAMES
IPC: C25D11/34
Filed: 1955-11-07
Abstract: A baking pan having an anodically-formed meta-stable tin oxide coating (see Group XXXVI) is coated with a bread-releasing film of an alkyl aryl silicone or of high polymers such as those of tetrafluoro- or trifluoromonochloro-ethylene, or of mixtures of such substances, preferably with an intermediate coating of an epoxide resin to improve adhesion, and the pan is then heated to convert the oxide to the stable form and to cure the bread-releasing film.
Patent GB-1347072-A (GB)
Title: Ignition systems for internal combustion engines
IPC: F02P15/12
Filed: 1971-07-07
Abstract: 1347072 Ignition systems DUCELLIER & CIE 7 July 1971 [27 July 1970] 31800/71 Heading F1B In an ignition system for an internal combustion engine comprising an ignition coil 4 having a low voltage primary winding 6 connectible to a battery 1 by switch means 5, a resistor 7, a contact breaker assembly 2 of an ignition distributor 11 and a first condenser 14 connected across the contacts of the contact breaker assembly, a second condenser 15 is provided connectible during the starting of the engine in such a way that its effect reinforces the effect of the first condenser. The closure of a contactor 16 can be controlled by a solenoid of the engine starter. In modifications the second condenser is connectible in parallel with the primary winding or in parallel with the combination of the primary winding and the resistor 7.
Patent GB-379151-A (GB)
Title: Improvements in electrical musical instruments
IPC: G10H3/03
Filed: 1931-11-17
Abstract: 379,151. Electrical musical instruments. ROUZET, L., 11, Avenue Gambetta, Clichy, Seine, France. Nov. 17, 1931, No. 31851. Drawings to Specification. [Class 88 (ii).] An instrument of the type wherein rotary toothed wheels produce currents in coils which either directly or through an amplifier actuate a loud speaker or the like, comprises two main groups each of six wheels with a ratio 3/2 between the numbers of teeth on consecutive wheels, and with a ratio 5/4 between the numbers of teeth on the third wheel of the first group and the first wheel of the second group. Supplementary wheels on the same shafts, or on shafts geared thereto, provide notes in other octaves. By the instrument, music may be played in either Pythagorean or Zarlino or allied scales. Transposition may be effected by control of the speed of rotation, the type of scale of course remaining as in the original key. Loudness may be varied by varying a condenser, self-inductance, or resistance in the circuits of the coils, or by varying the amplification, or the distance betweeen the cores of the coils and the toothed wheels. The ends of the cores may be shaped, or the cores may be twisted, to alter the timbre.
Patent GB-786169-A (GB)
Title: New photographic sensitisers
Inventor: ANDERSON GEORGE DE WINTER
IPC: C07D235/16
Filed: 1954-11-04
Abstract: Polymethine dyes of the general formula: <FORM:0786169/IV (b)/1> wherein R is an alkyl radical and A and B are hydrogens or together complete a fused on benzene ring are prepared by heating a quaternary salt of the formula: <FORM:0786169/IV (b)/2> (wherein X is halogen, sulphonic acid or sulphuric ester) or an acyl derivative thereof with malonic dinitrile in the presence of an organic amine.  In an example, 2-b -acetanilidovinyl - 1 : 3 - dimethyl - benzimidazole iodide is heated in ethanol with malonic dinitrile in the presence of triethylamine.  According to the Provisional Specification the dyes may have the formula: A=CH-CH(CN)2 wherein A may be any nitrogen containing radical such as <FORM:0786169/IV (b)/3> as well as the imidazole or benzimidazole as above, where R is an aliphatic radical. An example is given of the condensation of 4-b -anilidovinyl pyridine methiodide with malonic dinitrile in pyridine in the presence of piperidine.  Specificatio 555,936, [Group IV], is referred to.
Patent GB-207038-A (GB)
Title: Improvements relating to mats, scrapers and the like
IPC: A47L23/22
Filed: 1922-11-22
Abstract: 207,038. Baker, T. G. St. B. Nov. 22, 1922. No Patent granted (Sealing fee not paid). Boots and shoes, cleaning.-A brushing or scraping device, adapted to be secured to the floor, comprises a base-plate with an upwardly-directed brush &c., and two pivoted side wings each holding a brush &c. in a vertical position when open, but which may be folded over to enclose the brushes. The side wings 4, 5 have L-shaped ends and are connected by a link 10 so that they open and close simultaneously. One wing which overlaps the other slightly in the closed position, carries a spring catch 11 to secure both wings.