baber/WOPTO huggingface dataset:
Patent GB-1438899-A (GB)
Title: Friction rollers for twist tubes in false-twising apparatus
IPC: D02G1/06
Filed: 1974-07-01
Abstract: 1438899 Friction discs KUGELFISCHER GEORG SCHAFER & CO 1 July 1974 [10 April 1974] 29069/74 Heading F2Q [Also in Division D1] A friction roller 2 for driving a high speed twist tube in a false twisting apparatus comprises a carrier of inelastic material with a radial annular flange 6 around the periphery of which is secured an elastic synthetic resin friction ring 3. The friction ring 3 has a peripheral running surface for engagement with a twist tube and a protective layer (as shown formed by the annular flange 6) which is on at least one side of the running side of the running surface and which serves to protect the running surface from any oil thrown off from the twist tube. The protective layer is associated with a slinger edge 6<SP>11</SP> at which any oil present is flung off by centrifugal force when the roller is in use. The slinger edge is defined by the intersection between two annular surfaces each of which has a radially outwardly directed component at the slinger edge. The protective layer can be integral with the carrier flange 2 (as shown) or be formed by a separate coating comprising the slinger edge. The friction ring and protective layer can be anchored to each other by dovetailing or moulding. The protective layer can be a lacquer layer.
Patent GB-930894-A (GB)
Title: Load-sensing dead line anchor
IPC: B66C13/16
Filed: 1959-08-25
Abstract: 930,894. Measuring tension. MARTIN - DECKER CORPORATION. Aug. 25, 1959 [April 23, 1959], No. 29090/59. Addition to 837,320. Class 106 (2). A device for anchoring a loaded line L and measuring its tension comprises a drum 1 around which the line is wrapped and to which it is anchored by a clamp 17, the drum having an arm 20 which carries an hydraulic cell S and a line-engaging lever 24, pivoted by pin 23 on the arm 20, the lever 24 bearing against a diaphragm 28 in the cell S, the pressure in which is indicated by the gauge I. The clamp 17 forms part of one of the sideplates of the drum, the other side-plate 5 being extended to form the arm 20. The lever 24 carries a line-engaging block 44 which is mounted on bearings 42 to reduce friction.
Patent GB-1075497-A (GB)
Title: Glycol ethers
Inventor: REID JAMES ANGUS WILSON
IPC: C07C43/23
Filed: 1965-07-09
Abstract: Monophenyl ethers (I) of ethylene glycol are prepared by reacting diphenyliodonium salts (II) with ethylene glycol; diphenyl ethers of ethylene glycol are prepared by reacting II with I.  The diphenyl ethers which are p-alkyl substituted may be oxidized to the di-(p-carboxyphenyl) ether.  The preparation of the mono- and di-p-tolyl ethers is exemplified; the di-p-tolyl ether of diethylene glycol is a by-product.
Patent GB-743194-A (GB)
Title: Improvements in and relating to synthetic reverberation systems
Inventor: AXON PETER ERIC
IPC: G10K15/10
Filed: 1952-11-19
Abstract: 743,194. Reverberation systems. BRITISH BROADCASTING CORPORATION. Feb. 19, 1954 [Nov. 19, 1952], No. 29270/52. Class 40 (4). A reverberation system comprises a plurality of recording heads A, B, C fed with the same signals and arranged to produce a corresponding set of recordings on tracks a, b, c which are passed in staggered relationship under a single pick-up S. As shown recording takes place on a single strip X, which may be of magnetic tape or light-sensitive film. A plurality of pick-ups S .. W situated at different distances from the recording heads may be used. The outputs from the pick-ups are given different attenuations and combined, the combined output being either used by itself or in conjunction with the original signal. The outputs from the pick-ups may also be fed back to the recording heads for producing further reverberations. Tho arrangement has the advantage that with a plurality of recording tracks and the consequent mechanical independence of the positions of the recording heads, the reverberation time may be made as small as required. Specification 258,864, [CLass 40 (iv)], is referred to.
Patent GB-432535-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H9/04
Filed: 1933-10-23
Abstract: 432,535. High tension switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Oct. 23, 1933, No. 29320. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 23, 1934]. [Class 38 (v)] Arc-rupturing devices ; cases ; pneumatic actuation.-Switches in which the arc comes into contact with the surrounding atmosphere are adapted for use in mines or other places where an explosive atmosphere may exist, by providing means (controlled by the operating gear of the switch) for scavenging the switch chamber with an incombustible gas immediately before a switching operation. A gas-blast blow-out switch has a movable contact 2 connected to a piston 3 in a cylinder 4 and has gas-supply pipes 7, 8 for opening, and a pipe 9 for closing, the switch, these pipes having control valves 11, 12. A silencer 10 is located behind the fixed nozzle contact 1, and non- return valves 15 .. 17 are provided. In switching-off, gas for example, air, passes through a pipe 13 into the space between 1, 10 and expels any explosive gas which may be there, so that when the contacts separate and the arc is blown into that space by the gaspressure in chamber 6, no explosion occurs. While the switch is open, explosive gas may enter the chamber 6 through the contact 1, so that before the contacts engage in switching-on, gas from the pipe 14 scavenges the cylinder 6. The correct time of scavenging is generally ensured by the inertia of the moving switch parts, but means such as the design of valve 11 or a damping device on the valve 16, may be provided for retarding the movement of those parts. The invention is also applicable to an expansion-chamber, water- or other liquidbreak switch, Fig. 2 (not shown), operated by gas-pressure and scavenging on the closing movement, although it is stated to be adapted to scavenging also on the opening movement. In this form also, a wire gauze may surround the chamber outlet so as to confine any hydrogenflames which may be in the chamber. For operation by other than gas, a special gas source is provided.
Patent GB-302020-A (GB)
Title: Improvements in, and relating to, key hole covers
IPC: E05B65/50
Filed: 1927-11-03
Abstract: 302,020. Bucknall, G. H., and Bucknall, T., (trading as Herbert & Co., T.). Nov. 3, 1927. Keyholes, obstructing.-In a lock, for a suitcase, trunk &c. of the kind in which the bolt F is withdrawn by a slidable nozzle or boss B, a keyhole cover-plate H is pivoted to the nozzle to move parallel to the front-plate of the lock, being urged to the covering position by a spring. As shown, the plate H is pivoted on a post D within the sliding boss or nozzle B, and is urged by a spring J, its movement being limited by the ends of a lateral slot L in the nozzle through which the neck G of the plate passes. Fig. 3 shows the plate swung against the action of the spring to expose the keyhole. According to the Provisional Specification a fixed boss may be riveted to the lock case in the absence of a slidable boss.
Patent GB-393265-A (GB)
Title: Improvements relating to the production of water-free ethyl alcohol
IPC: B01D3/00
Filed: 1931-10-22
Abstract: In dehydrating alcohol by passing alcohol vapours in countercurrent to an anhydrous molten dehydrating salt dissolved in absolute alcohol as described in Specification 368,793 a mixture of potassium and sodium acetate is used comprising preferably 70 per cent potassium acetate and 30 per cent sodium acetate.
Patent GB-334087-A (GB)
Title: Improvements in or relating to ground rope rollers
IPC: A01K75/06
Filed: 1929-09-30
Abstract: 334,087. Sorensen, S. W., Taylor, J. W., and Wise, G. S. Sept. 30, 1929. Trawling - gear. - A ground-rope roller 2 rotates on a fixed inner bush 5 which is provided with longitudinal ribs 8 between which the ground - rope is adapted to engage. The ribs 8 may be either equally or unequally spaced. The roller comprises a sleeve 3 which is flanged at 4 to support end plates 1 and is grooved at 9 to allow the escape of sand. The bush 5 grooved at 9 to allow the escape of sand. The bush 5 is retained in the sleeve 3 by a flange 6 and ring 7.
Patent GB-781305-A (GB)
Title: Improvements in or relating to roofing tiles
IPC: E04D1/04
Filed: 1954-10-13
Abstract: 781,305. Roofing tiles. MADURA CO., PRIVATE, Ltd., [formerly MADURA CO., Ltd.]. Oct. 13, 1954 [Jan. 27, 1954], No. 29501/54. Class 87(1)  An interlocking tile is provided on its upper face along one side edge with ribs 22, 23 separated by a groove 24 and on its lower face along the other side edge with corresponding grooves 28, 25 separated by a rib 27. The groove 24 opens at 29 into one of two main channels 20, 21 in the upper face of the tile and a marginal rib 26 rests in the channel 20 of an adjacent tile. The lower edge of the tile has a depending rib 41 which is received in a groove 42 of a lower tile and channels 47 are provided between the upper wall 44 of the groove 42 and the upper end of the tile to drain away any water rising above the groove 42. Specifications 366,526 and 456,256 are referred to.
Patent GB-464797-A (GB)
Title: Manufacture of aromatic carboxylic acid chlorides
IPC: C07C51/60
Filed: 1935-10-25
Abstract: Aromatic carboxylic acid chlorides are manufactured by causing phosphorus oxychloride, advantageously in excess, to act at a raised temperature on a free aromatic carboxylic acid not containing amino or hydroxy groups, in the presence of an alkali metal chloride in a proportion about equivalent to the metaphosphoric acid formed during te reaction.  In examples, phosphorus oxychloride is heated with: (1) benzoic or p-toluic acid in the presence of sodium and potassium chlorides; (2) p- or m-nitrobenzoic acid or halogen substituted benzoic acids in the presence of sodium and potassium chlorides; (3) terephthalic or isophthalic acid in the presence of sodium chloride (yielding the dichlorides); (4) naphthalene-1 : 4-dicarboxylic acid in the presence of sodium chloride (yielding the dichloride).
Patent GB-819499-A (GB)
Title: Improvements in or relating to apparatus for separating hop flowers and hop stems from a mixture thereof
IPC: B07B1/14
Filed: 1956-09-27
Abstract: 819,499. Sorting solid materials. HINDS, G. A. Dec. 27, 1957 [Sept. 27, 1956], No. 29587/56. Class 117 A mixture of hop flowers and stems is carried by open mesh conveyers 10-12 and a paddle type conveyer 15 to an adjustable endless belt 16 which delivers it to two sets of smooth surfaced steel rollers 17 and 18. The rollers of each set lie in an inclined plane, are spaced apart, and rotate in the same direction so that the mixture is fed downwardly away from a central vertical plane and on to two further sets of similar rollers 19 and 20 which are spaced apart and lie in the same horizontal plane. The rollers in each of the latter sets rotate in the same direction and the hop flowers fall through the spaces between adjacent rollers and on to inclined endless belt conveyers 24, 25. The inclinations of the belts are adjustable so that the flowers roll downwardly on to conveyers 31, 32, and any stems which have also fallen between the rollers 19 and 20 cling to the belts and are delivered to a conveyer 30. Stems which do not pass between the rollers 19 and 20 are carried by them towards the central vertical plane and to a gap 21, and they also fall on to the conveyer 30. Hop petals which fall through the conveyers 10-12 are collected on a conveyer 14 and join the flowers on the conveyer 31.
Patent GB-997218-A (GB)
Title: Diamond grinding of glass
IPC: B24B7/24
Filed: 1961-08-16
Abstract: 997,218. Grinding. ENGELHARD HANOVIA Inc. Aug. 16, 1961 [Aug. 18, 1960], No. 29626/61. Heading B3D. A method of grinding plate glass comprises advancing the plate glass through successive grinding stations having diamond or like grinding wheels to remove stock from the surface of the plate glass. The plate glass 12, Fig. 2, is fed by rollers 14 ... 17 beneath a grinding-wheel 18 rotated by a motor 22 mounted on a frame 26. The glass may be supplied in continuous form from a melting furnace 48, Fig. 4, and annealing chamber 49 to the grinding stations 50 of which there may be fourteen, and may then pass through a number, e.g. 21, iron oxide polishing stations 51 before being reversed and passed through a similar number of grinding and polishing stations for operation on the other side of the glass. Alternatively, both sides of the glass may be operated on at the same time. The Specification includes details of the stock removed at each grinding station and the grit size of the abrasive of the grinding-wheel at each station. The depth of glass removed in the stations varies from 0.006 to 0.0001 inch and the grit size from 50-60 at the first station to 1250-2500 at the final station, corresponding to a particle size of 275 to 5-10 microns. The surface finish varies from 180-230 microinches r.m.s. at the first station to 2-3 microinches r.m.s. at the final station. The grinding wheels cut at a speed of between 2000 and 4000 feet per minute, the glass is fed through the stations at 200 inches per minute, and a coolant consisting of a mixture of water and oil is fed to the grinding-wheels. The grinding-wheels are constructed so that the radial width of their operative surfaces can be varied. Each wheel comprises a support 18, Figs. 9 and 10, having a ring of holes which receive the studs 96, Fig. 12, of segment holders 94. The holders have three recesses 100 into each of which a segment comprising a mount 104 and abrasive grinding element 106 can be retained by a screw in a threaded hole 112. The element is of elongate shape as shown in Fig. 15 and the segments of each holder can be adjusted so as to be in line or parallel. Each holder has a bore 116, Fig. 12, for a screw which can be received in any one of a plurality of holes in the mount 18 so that its segments may be arranged circumferentially, radially or inclined at various angles to the radius of the mount. Bores 81-84 permit the passage of coolant to the grinding surfaces. The abrasive of the segments may be of natural or synthetic diamond in a matrix of copper, zinc, silver-copper solder, iron and manganese. The abrasive concentration in the matrix may vary from 9 to 40 carats per in.<SP>3</SP> between the first and last grinding stations, but the product of particle size and concentration is approximately constant for each of the grinding stations. A known process for grinding glass is described which uses 28 beach sand grinding stations and 42 iron-oxide polishing stations for each side of the glass.
Patent GB-728133-A (GB)
Title: Lubricant for two-stroke cycle internal combustion engines
IPC: C10L1/14
Filed: 1951-12-18
Abstract: A lubricant for two-stroke internal-combustion engines comprises a lubricating oil having an initial boiling point of 550-650 DEG  F. and a mineral oil fraction having an initial boiling point in the range 365 DEG -375 DEG  F. and a final boiling point in the range 660-680 DEG  F.  The ratio of the oil to the mineral oil fraction is from 2 : 1 to 0.5 : 1.  The lubricant may be mixed with a fuel having a lower boiling range than that of the mineral oil fraction.
Patent GB-671640-A (GB)
Title: Improvements in pressure-applying devices for roller mountings in textile fibre drafting machinery
Inventor: AMBLER GEOFFREY HILL
IPC: D01H5/50
Filed: 1947-11-07
Abstract: 671,640. Textile drafting apparatus; weighting arrangements. AMBLER SUPERDRAFT, Ltd. Oct. 30, 1948 [Nov. 7, 1947], No. 29683/47. Class 120(ii) A pressure appplying device for a roller mounting of the kind in which a pair of rollers is supported on a shaft arranged in opentopped bearings and has pressure applied by a spring-loaded member adjustable by means of a thumb-screw has the spring-loaded member formed with two depressions of different depths, the shaft resting in the shallower depression during normal running and in the deeper when pressure is reduced by moving the spring-loaded member. When applied to feed rollers, the lower of which may be grooved as described in Specification 671,641, the upper rollers 13 are secured in pairs on shafts 22 arranged to bear in slots 23 and pressure is applied to each pair by a spring-loaded spindle 26 and a slotted member 29 freely mounted on the spindle 26. The slot in member 29 has two depressions 33, 34 of different depth and the pressure is adjusted for normal running by a wingnut 31 with the shallower depression 34 in engagement with the shaft 22. The invention may. be applied to the drafting apparatus described in Specification 671,633.
Patent GB-292833-A (GB)
Title: Improvements in driving gear for electrically driven locomotives
IPC: B61C9/38
Filed: 1927-11-07
Abstract: 292,833. Buchli, J. Nov. 7, 1927. Addition to 273,507, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of]. Axle-bearing guiding-arrangements.-Electric locomotives having reduction gearing of the kind described in the parent Specification are fitted with radial axles such as the Adams type. In the construction shown curved faces 15 on the axle-boxes 14 enable the axle 7 to move about a centre S.
Patent GB-896987-A (GB)
Title: New hydrazine derivatives and a process for their manufacture
IPC: C07D211/58
Filed: 1958-09-18
Abstract: The invention comprises piperidyl-hydrazine derivatives of formula <FORM:0896987/IV (b)/1> where R1 is C6H5O-, C6H5- or <FORM:0896987/IV (b)/2> They may be prepared by reacting 1-methyl-piperidyl-4-hydrazine with acetone, acylating the o  - (1 - methyl - piperidyl - 4) - o 1 - isopropylidene hydrazine thus obtained with a carboxylic acid chloride R1COCl, and splitting off the isopropylidene group from the acylated o -(1-methylpiperidyl-4)-o 1-isopropylidene hydrazine thus obtained by means of alcoholic hydrogen chloride or other method known to split off an alkylidene group from an acylated hydrazone without affecting the acyl group.
Patent GB-384751-A (GB)
Title: Improvements in or connected with loom oscillatory back bearer motions
IPC: D03D49/06
Filed: 1931-10-29
Abstract: 384,751. Letting-off warps in looms. RUSHTON, J., 41, Garden Street, and NELSON, Ltd., J., Valley Mills, both in Nelson, Lancashire. Oct. 29, 1931, No. 29949. [Class 142 (ii).] The warp passes over a roller A supported in any one of a number of bearings formed by notches in arms a<1> on a shaft a<2> having an arm C linked to a bellcrank lever c<1>, c<2> acting on a spring c<8> bearing against a collar c<9> on a forked connecting-rod c<4> slotted to receive a displaceable pin c<7> acting on the weight lever. When the shed opens and the warp tension increases, the arms a<1> rock, the arm c<2> raises the rod c<4>, and the weight lever and the tension of the ropes or chains passing around the warp beam ruffles &c. is momentarily decreased so that the warps are maintained at a constant tension during the opening and closing of the shed. The weight lever may carry at its end a two-armed rocking member connected by chains &c. to bell-crank levers connected to the beam frictioning chains &c., or two weight levers may be used connected directly to the beam frictioning chains &c., the parts c<1>, c<4> &c. being duplicated. The Provisional Specification describes an arrangement wherein the spring c<8> is omitted.
Patent GB-1147230-A (GB)
Title: Improvements in or relating to telephone apparatus for selective connection at points along a four-wire transmission path
Inventor: WARBURTON CLIVE ROWLAND
IPC: H04J1/00
Filed: 1966-07-04
Abstract: 1,147,230. Two-way transmission. GENERAL ELECTRIC CO. Ltd. 3 July, 1967 [4 July, 1966], No. 29994/66. Headings H4K and H4R. Telephone equipment which enables a main tenance engineer to tap into a 4-wire line comprises two both-way lines A, B connectec to the pairs of the 4-wire line and coupled by transformers 17, 24 to a telephone instrument by way of transistor amplifiers 21, 25, 35, 38 and variable attenuators 13, 15. The attenuators are varied in opposite directions by movable contacts 14, 34 to compensate for the distances of the equipment from the terminal station X, Y. The transistors are arranged as emitter followers and further amplifiers 27, 28, 32 may be provided. The direction of speech transmissior to and from the stations X, Y is changed by means of a key K1, and an additional key K2 having two off-normal positions provides for D.C. signalling to each station.
Patent GB-975374-A (GB)
Title: Improvements in or relating to steam boilers
Inventor: GOLDFLAM OTTA
IPC: F22B31/04
Filed: 1962-08-03
Abstract: 975,374. Pulverulent fuel furnaces; watertube steam boilers. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. Aug. 3, 1962, No. 30003/62. Headings F4A and F4B. In a slagging pulverized-fuel fired steam boiler with auxiliary firing of a variable amount of gas, especially a gas of low calorific value, separate combustion chambers are provided for the two fuels and a mixing chamber receives the completely combusted gases from the separate chambers. Furthermore, the heating surfaces of the auxiliary combustion chamber or chambers are connected to the boiler system as separate circuits independently of the main boiler circuits. In the form shown, the boiler has a main combustion chamber 1 with a flat floor 2 and slag tap 3 and is fired by corner mounted pulverized fuel burners 4. Above the chamber 1 the lining water tubes are bent to form a throat 6 providing a passage for completely burnt gases into a mixing chamber 5. The lining tubes discharge into a drum 14. On each side of the chamber 5 are located auxiliary gas combustion chambers 7 fired by burners 8, completely burnt gases leaving the chambers through outlets 16 to enter the mixing chamber 5. Downcomers 13 supply water from the drum to tubes lining the drambers 7, whilst risers 15 convey the steam-water mixture from these lining tubes directly to the drum. With this arrangement any or all of the auxiliary chambers can be taken out of service without affecting the pulverized fuel firing and without the risk of the fouling of the unused gas burners by slag.
Patent GB-850231-A (GB)
Title: Improved building block
IPC: E04C1/41
Filed: 1956-10-02
Abstract: <PICT:0850231/III/1> The walls of the cavities 3 in a building block 1 are spray-coated by means of 360 degree spray nozzles 27 connected to a pipe 23 carrying the coating material.  Swivel bearings 29 allow for vertical movement of the pipe and nozzles.  The coating material may be a latex-base paint, an oil paint, asphalt, asphaltum, or a synthetic vinyl plastic.
Patent GB-1276733-A (GB)
Title: Gas distribution method and apparatus for effecting heat exchange
Inventor: CORHANIDIS SEBASTIEN SEBASTIEN
IPC: F28F27/02
Filed: 1969-06-13
Abstract: 1276733 Containers S S CORHANIDIS 13 June 1969 [14 June 1968] 30082/69 Heading F4H A cooling or heating system for packages contained in an enclosure 1 comprises a heater or cooler 2 and fans 3 from which air is supplied through a vertical passage to a ceiling space 6 and distributed through outlets 7, 8, floor openings 13, 14 being provided for the return of the air to fans 3, the openings 8 and 13 being larger than the openings 7, 14, so that air tends to flow transversely across the enclosure from openings 8 to openings 13. If the packages are impermeable, air flows from openings 7, 8 to openings 13, 14 respectively. A cooler 2 may be replaced by a spray system for liquefied nitrogen or carbon dioxide, which is circulated by the fans 3. The enclosure 1 is thermally insulated. The openings 7, 8 may be adjustable.