baber/WOPTO huggingface dataset:
Patent GB-167803-A (GB)
Title: Improvements in air-cooled or evaporative surface condensers
IPC: F28D5/00
Filed: 1920-03-17
Abstract: 167,803. MacLeod, J. March 17, 1920. Surface condensers.-In an air-cooled and evaporative surface condenser, the tubes are arranged in sections in which straight rows of tubes are separated by straight passages for air, &c., and the sections are arranged with the tube rows of one section in line with the air passages of adjacent sections. Steam, entering at inlet A, passes downward through the tubes of a group of four sections C to header D, then up a group of three sections E, and down a group of two sections G. Air is forced through the condenser by a propeller U and evaporative liquid is sprayed into it at the entrance to the group C and into the spaces b, c between the groups. The tubes may be arranged vertically or inclined and may be of flattened cross-section. Alternatively, the air may be passed through the tubes and the steam through the passages between them.
Patent GB-550251-A (GB)
Title: Manufacture and use of nitro dyes
IPC: C09B51/00
Filed: 1941-06-24
Abstract: 550,251. Nitrodyes ; dyeing cellulose esters and ethers ; cellulose solutions. OLPIN, H. C., and ARGYLE, C. S. June 24, 1941, No. 7928. [Classes 2 (ii), 2 (iii) and 15 (ii)] Textile materials are coloured by means of esters and amides of nitrodiarylamine carboxylic acids in which there are no more than two cyclic radicles apart from any cyclic radicle that may be present in the amide or ester group. Cyano, halogen, alkoxy, hydroxyalkyl, hydroxyalkoxy, alkylsulphone, sulphonamide and acetylamino groups may be present. The hydrogen of the amide group may be substituted by alkyl, hydroxyalkyl, aralkyl; hydroxyaryl or aryl, and the nitrogen may form part of a heterocyclic ring, e.g. a piperidine ring. The following dyestuffs are specified: the amide, dimethylamide, amylamide, anilide, hexahydroanilide, o-anisidide and o-phenetidide of 2 -nitrodiphenylamine -4 -carboxylic acid, of 2 -nitro -41 -methyldiphenylamine -4 - carboxylic acid, of 2 -nitro -2<SP>1</SP> -methoxydiphenyl amine -4 -carboxylic acid, of 2 -nitrodiphenylamine -21 -carboxylic acid, of 2 - nitrodiphenylamine -4<SP>1</SP> -carboxylic acid and of 4 -nitrodiphenylamine -4<SP>1</SP> -carboxylic acid ; the isopropyl, benzyl, phenyl, phenylethyl, p-cresyl, o-anisyl, #-naphthyl, and tetrahydrofurfuryl esters of the same carboxylic acids and the amide and ethyl ester of N - -(2<SP>1</SP> -nitro -4<SP>1</SP> -carboxyphenyl) -1 -naphthylamine. In examples, cellulose acetate yarn and fabric are dyed yellow with dispersions of 2 -nitro diphenylamine -4 -carboxylic acid phenyl ester and of the o-anisidide of 2 -nitrodiphenylamine -4 -carboxylic acid. Textiles may be dyed with aqueous dispersions of the dyestuffs and solutions of the latter in organic solvents and mechanical impregnation methods, e.g. using padding or printing processes, may also be used. The dyes have no affinity for cellulose or animal fibres when free from sulpho and carboxy groups. Two colour effects can thus be obtained with mixed fabrics. Coloured fibres, straws or films may be produced by spinning the coloured cellulose ester and ether solutions. Cellulose formate, propionate, butyrate or acetate-butyrate, cellulose methyl, ethyl and benzyl ethers and polyamide fibres, e.g. derived from adipic acid and hexamethylene diamine are specified materials which may be coloured. The dyestuffs may be prepared by amidating or esterifying the free carboxylic acid or its acid chloride. The simple amide may be reacted with an alkylating,. arylating, cycloalkylating or aralkylating agent. The amides may also be prepared by hydrolysis of the nitriles. The nitro groups are preferably already present in the starting materials but nitration may be effected. The preparation of the phenyl ester and o-anisidide of 2-nitrodiphenylamine -4 -carboxylic acid is described. According to the Provisional Specification the dyes may be used for colouring lacquers.
Patent GB-897932-A (GB)
Title: Improvements in collapsible cartons
IPC: B65D5/36
Filed: 1959-03-07
Abstract: 897,932. Cartons. WALMSLEY Ltd., R. C., and SMYTH, V. H. May 20, 1959 [March 7, 1959], No. 7970/59. Class 18. In the blank shown in Fig. 6 corner gussets 12, 13 have extensions 16, 17 which overlap and may be stuck together when the box is erected. The carton has a flange 7 on the lid 6 which engages a packet formed by the extensions and the wall 5. An additional panel 28 having tabs 29 engaging slots 30 stiffens the wall 5. The gussets 22, 23 may be formed as shown in Fig. 6 or, as shown in Fig. 3, are not creased diagonally but merely folded to lie against the rear wall 4, or they may be creased diagonally but have no extensions. Alternatively, gussets 10, 11 may be stuck to the rear wall 4. Side flanges may be provided on the lid 6, and flanges 31 provided on the sides 2, 3 of the carton.
Patent GB-512895-A (GB)
Title: Improvements in or relating to railway signal and/or points control systems
IPC: B61L19/14
Filed: 1938-03-15
Abstract: 512,895. Railway signalling apparatus. STANDARD TELEPHONES & CABLES, Ltd., GRIFFITHS, J. B., and BROWN, A. March 15, 1938, No. 8023. [Class 105] Miniature-diagram control panels for railway signalling purposes have means to notify the operator if operation of a manual control switch for route, points or signal setting is undesirable; such means may consist of an electromagnet detent restricting the movement of the control switch. Tne route control switch shown is rotated to a position corresponding to the desired route and is then pushed in. A detent I engaging a disc H limits the inward movement but is released when a magnet M is energized over contacts D controlled by cams C on a spindle U rotated by the hollow shaft B of the switch, contacts L closed by a cam collar J, and contacts of other route control switches checking that no conflicting route is set up. The inward movement can then be continued to close contacts O which in conjunction with contacts D effect operation of the various points in the route. A detent N is released when all the points for the route are set and thereupon the inward movement of the switch can be completed so closing contacts Q which with contacts D clear the signal. The return outward movement first opens contacts Q to set the signal at danger but the 'complete return can only be effected if an approach section is free so that a detent R is released over contact S and contacts D. This locking of the route switch is also described as applied to the route setting apparatus having motor-driven sequence switches described in Specification 496,495 the first detent being released when the sequence switch has stopped in route-setting position and the second detent when the points for the route have been set. Specifications 498,143 and 518,387 also are referred to.
Patent GB-540182-A (GB)
Title: Improvements in or relating to refractory material, such as high temperature insulation bricks for furnace linings and the like
IPC: C04B41/50
Filed: 1940-05-04
Abstract: 540,182. Refractory materials. LUCAS, A. R., and LUCAS, L. R. J. May 4, 1940, No. 8041. Addition to 539,957. [Class 22] Refractory material such as high temperature insulation bricks are coated with a blend or mixture of two or more refractory materials of different thermal co-efficients of expansion, the mixture having substantially the same co-efficient of thermal expansion over each part of the working temperature range as the material to be coated. Mixtures of cordierite and magnesite, corundum and aluminous firebrick or mullite brick, magnesite and chrome are suitable. They are mixed with clay and water and a flux such as sodium silicate for coating.
Patent GB-717266-A (GB)
Title: Improvements in and relating to parachutes
IPC: B64D17/34
Filed: 1952-03-31
Abstract: 717,266. Parachutes. BEADLE, J. C. W. March 31, 1953 [March 31, 1952], No. 8115/52. Class 4 A parachute comprises a main canopy 10 fitted internally with a false canopy 15 made of flexible material having a relatively porous or open texture and attached at its edges to or near the periphery 13 of the main canopy, shroud lines being secured to the periphery of the main canopy, this false canopy being provided with one or more control lines 16 secured to the crown or vent hem and operable independently of the shroud lines whereby the false canopy can be pulled out from inside the main canopy to a greater or lesser extent. In the embodiment of Figs. 1 and 4, the shroud lines 12 are attached to a load suspending device 14, and the user, by actuating the control line 16, can vary the configuration between those of Figs. 1 and 4, varying his rate of fall. An intermediate position is stated to be the most stable. In modifications the apex 17 of the false canopy is joined to the vent hole 11 of the main canopy by elastic cords, or the apex 17 is attached by a cord passing through the vent hole 11 to a small auxiliary parachute. In the embodiment of Fig. 7, the control line 16 is passed round a pulley 25 attached to the load and passes through the vent hole 11 to a small auxiliary parachute 24, which determines by its size the limiting speed of descent. The invention may be used as a brake parachute attached to the tail of an aeroplane, in which case the control line may be actuated manually or by a winch. When fully everted, the false canopy together with the main canopy preferably form a streamlined body.
Patent GB-911122-A (GB)
Title: Improvements in or relating to photographic objective systems
Inventor: KUPKA FRANTISEK
IPC: G02B13/00
Filed: 1959-03-10
Abstract: 911,122. Lens systems. MEOPTA, NARODNI PODNIK. March 10, 1959, No. 8171/59. Class 97 (1). A photographic objective system comprises five lens components, three in front of a stop and two behind, arranged in the following order: two simple converging lens which may be menisci, a diverging meniscus doublet with a positive front element and a negative rear element joined at a positive surface and with its concave surface facing the stop, another diverging meniscus with its concave surface facing the stop and a biconvex component. The sum of the powers of the first two lenses is greater than ¥ power of the system, at least two of the converging lenses in front of the stop are menisci and the focal length of the part of systems in front of the stop is less than twice the total focal length. Two examples are given. Specification 419,552 is referred to.
Patent GB-288138-A (GB)
Title: Improvements in compression refrigerating apparatus
IPC: F25D23/00
Filed: 1928-03-19
Abstract: 288,138. Grier, J. A., and Warren, J. A. March 31, 1927, [Convention date]. Machinery, securina to beds. -In order to obviate vibration, a compression refrigerating machine is supported by a member 24 and a saddle 44 upon rubber blocks 52 enclosed in wooden frames 60 secured to a base 55.
Patent GB-1420352-A (GB)
Title: One-way drive rotary couplings especially mechanisms of the free wheel type
IPC: F16D41/06
Filed: 1973-02-20
Abstract: 1420352 Ratchet clutches AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 20 Feb 1973 [23 Feb 1972] 8321/73 Heading F2C A friction ratchet clutch comprises shoes P which wedge between a cylindrical surface G of a driven drum B and a block S which slides on a flat surface C of a driving shaft A (or the shoe P) and pivots relative to the shoe P (or driving shaft A). The elements are held in contact by compression springs R and/or tension springs (R T ) (Figs. 6 and 11, not shown). As shown the shoes P and blocks S are provided on each side of a flat portion of a driving shaft A. The surface G is engaged by contact zones DD<SP>1</SP>, EE<SP>1</SP> at the ends of the shoes P. In Figs. 3-7 (not shown) three shoes P and blocks S are provided around a triangular part of the driving shaft- A. The shoes P may have V-shaped wedge surfaces which engage a V-shaped groove in the drum B (Figs. 3 and 4, not shown). The shoes P may be formed with axial grooves (1) and the drum B with circumferential grooves (2) to prevent the formation of an oil film therebetween (Figs. 8 and. 9, not shown). In Figs. 10 and 11 (not shown) the blocks S slide on flat surfaces of the shoes P and pivot relative to the driving shaft A. In Fig. 11 (not shown) a single shoe P and block S is mounted in a slot in the driving shaft A. The shoes and blocks may be reversed to reverse the direction of coupling. The blocks S may have a low coefficient of friction, e.g. may be bronze, plastics or have a sulphinized surface. The shoes P may be cast iron. The Specification gives relations between the coefficients of friction and the dimensions of the elements.
Patent GB-570585-A (GB)
Title: Improvements in or relating to the treatment of solid fuel
IPC: C10L5/06
Filed: 1943-05-25
Abstract: 570,585. Agglomerating fuel. WILTON, N., FEGAN, T. G., and CHEMICAL ENGINEERING & WILTON'S PATENT FURNACE CO., Ltd. May 25, 1943, No. 8346. [Class 50] [Also in Group II] A combustible agglomerate of coke breeze and about 15 per cent of pitch is formed without briquetting by showering the breeze into a horizontal mixer and simultaneously dispersing in the shower a spray of molten pitch at above 200‹ C. Coke breeze is supplied by an elevator 12 from a hopper 11 to a shoot 13 from which it is showered into an open-topped jacketed mixer 14. Pitch passes from a breaker 16 to an elevator 20 feeding it to a melter 22 from which, at over 200‹ C., it is led through a valved pipe 28 to a nozzle 30 dispersing it into the coke shower. The pipe 28 is enclosed by a pipe 25 conveying hot gases from the chimney 24 of the melter furnace 23 to the mixer jacket and thence through a fan 26 back to the chimney. Vane-carrying shafts 31, 32, of the mixer are oppositely rotated by means of spur wheels, belt 38 and chain drive 40 driven by an electric motor 41 which also operates the elevators, hopper feed, and pitch breaker mechanisms. The mixer vanes are progressively displaced 90 degrees along the length of the shafts with their faces inclined so as to feed the mixture to the open discharge end. The product may be crushed. The pitch nozzle or nozzles may be of drip-feed or pressure spray type. The mixer may be fitted to the front plate of a boiler or furnace. - Other ingredients such as sawdust, coal or waste oil may be added. Specifications 100,158, 158,686, 198,432, 270,976, 304,812, 306,085 and 322,220, [all in Class 50], are referred to.
Patent GB-705634-A (GB)
Title: Improvements in draught excluding strips, beadings, mouldings and the like
IPC: B60J10/08
Filed: 1952-04-03
Abstract: 705,634. Draught excluding &c. strips, mouldings &c. BRIGHT, T. J. R. April 3, 1952, No. 8555/52. Classes 20 (3) and 20 (4) In a draught excluding strip, beading, moulding, or the like 1, composed of rubber or other soft but resilient material, and carried by a substantially inverted U-shaped clip 4, or a series of spaced similarly shaped tags which embrace the edge of a supporting flange &c., 3, the strip fitting closely over the exterior surface of the clip &c. with its lower edges 6 turned inwardly and upwardly around the lower edges of the clips &c. and including oppositely arranged inwardly directed bead-like parts 7 which engage opposite faces of the supporting flange, the upwardly turned edges are formed with outwardly directed bead-like parts 7a which enter longitudinal recesses 4a in the clip &c. The strip may have an integral effective portion 2 of the tubular D section form shown, of sponge rubber, of split tube form, or formed with a rubber lip. If a continuous clip 4 is used it is preferably formed with staggered slits to aid bending. The beads 7 grip the flange 3 as shown, and may override a lateral projection on the flange. The limbs of the clip may be of tapering form to increase the grip on the flange. A covering material may be applied to the strip. Specifications 649,137 and 655,268 are referred to.
Patent GB-968199-A (GB)
Title: Immunising preparations
Inventor: EPPS HARRY BERNARD GEORGE
IPC: A61K39/08
Filed: 1961-03-08
Abstract: A veterinary immunizing preparation comprises a clostridial toxoid and an antitoxin formed in response to Clostridium tetani toxoid or toxin.  A toxoid preparation made by treating cultures of Clostridium perfringens Type D with formaldehyde is adjusted to pH 6.0 to 6.2, precipitated by the addition of potash alum and preserved with phenol.  This was mixed with peptic-refined serum containing tetanus antitoxin.
Patent GB-292705-A (GB)
Title: Improvements relating to coin freed mechanism of gas and similar meters
IPC: G07F15/02
Filed: 1927-03-29
Abstract: 292,705. Simpson, S. March 29, 1927. Coin action, thrust and multiple-coin.-A coinholder mechanism for gas and similar meters. particularly for use with coins of more than one size or value and adapted for the operation of a measuring wheel having peripheral teeth, comprises a diametrical casing a, Figs. 1 and 2, carried by a disc b rotatable by a handle b<1> on the inside of a price-changing disc c. The chamber for the coin is defined by a plate f adjustable according to the value of the coin to be used, and by the bent end d<3> of a plate d slidable on the outside of the casing a, the other inturned end d<1> of the plate engaging in a slot a<4> in the casing and having a tooth d<2> for engagement with the teeth of a measuring wheel e. A coin inserted through a slot c<1> in the pricechanger engages the plate f and the end d' thereby sliding the plate d against the action of a spring g to bring the tooth d<2> into engagement with the measuring wheel. The spring, g is anchored to a hook d<6> on the plate d and to a pin a<3> on the casing protruding through a slot d<5> in the plate. The plate f has an enlarged portion to engage in either of two cross-slots a<2>. To adjust it, it is pulled against the action of a spring f<3> and then moved along vertical slots a'. The coin holder mechanism may be used with the adjustable measuring-out mechanism described in Specification 258,367. Coin-discharging mechanism.-At the end of a revolution by the handle b', the casing a comes against a stop h<6> and the end d<3> of the plate d meets a stop h<5>, so that the plate is swung laterally about the end a<4> of the casing against the action of the spring f<3>. This allows the coin to drop through an outlet h<4>.
Patent GB-239560-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/26
Filed: 1924-04-07
Abstract: 239,560. British Thomson-Houston Co., Ltd., and Pollock, A. A. April 7, 1924. Windings; armatures, cooling. - Armature windings for commutator machines are arranged so that the current in one coil side is divided and returns through two parallel coil sides located two pole pitches apart. In one arrangement, Figs. 3 and 5, a four layer winding comprisescoil sides X, Y, Z with end windings 1, 2, the end portions 1 being straight extensions of the slot conductors. The current in conductors Y returns through conductors X, Z. In another arrangement, both slot conductors X, Z are offset by the full pole pitch, no straight end portions being provided, and the conductor Y may comprise a single bar of double cross-section. The series of axial channels formed between the top and bottom layers provides increased ventilation.
Patent GB-1437163-A (GB)
IPC: F02C7/262
Filed: 1974-02-27
Abstract: 1437163 Gas turbine jet engines-re-heat equipment SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 27 Feb 1974 [26 April 1973] 8780/74 Heading F1J The invention relates to an arrangement for detecting operation of the re-heat system of a gas turbine jet engine. The engine indicated in Fig. 1 is a gas turbine jet engine of the two-spool type and comprises a re-heat duct 6 and a convergentdivergent propulsion nozzle 7. The re-heat duct comprises a flame holder 8; the nozzle 7 comprises adjustable flaps 9 for variation of the area S of the nozzle throat. A regulator device 11 is provided and comprises a pilot's throttle lever 12; input signals N 1 , N 2 , T 2 , P4 and P 7  are fed into the regulator, N 1  being speed of LP rotor assembly N 2  being speed of HP rotor assembly T 2  being temperature at intake of LP compressor P 4  being pressure at outlet of HP compressor P 7  being pressure of gas flow at outlet of LP turbine. P x  is the static pressure and P x <SP>1</SP> the total pressure of gas at a point in the re-heat duct, and it is taken that P x =P 7 . Py is the static pressure of gas flow at the throat 10 of the nozzle. The two pressures P x (or P x <SP>1</SP>) and Py are utilized to detect operation of the re-heat system, it being found that the value P x -P y  is always greater than a certain reference pressure when re-heat is in operation. In Fig. 1 the static pressure P x  (or the total pressure P x <SP>1</SP>) in the re-heat duct provides a first signal X which is communicated to device 22; similarly the static pressure Py at the nozzle throat provides a second signal Y which is communicated to device 22. When the difference X-Y is greater than a predetermined value the device 22 transmits a signal Z which indicates operation of the re-heat system by lighting of a lamp 24. In Fig. 2 the devices 20, 21 transmit electric signals V x  and Vy to the device 25, the resulting signal V x -V y  being passed to a comparator 26 to which a reference signal V ref  is passed-if the difference between signals (V x -V y ) and V ref  is above a predetermined value, the indicator light 24 indicates. In Fig. 3 fluid-pressure signals P x  and P y  are transmitted to opposite sides of a diaphragm 30, the diaphragm closing contacts 34, 35 when P x -P y  is greater than a predetermined value. In Fig. 6, a fluidic device is utilized and comprises a monostable fluidic trigger stage 60 having an input passage 61 from which lead two output passages 62, 63 connected to opposite sides of a diaphragm 70. The device also comprises two control passages 64, 65 which receive pressure signals P x  and Py respectively which deflect the power fluid either into passage 62 or passage 63 depending on their values. If P x  is greater than Py the fluid is directed into passage 63 and the diaphragm 70 moves to close contacts whereby the lamp 24 is lighted.
Patent GB-293119-A (GB)
Title: Improvements in and relating to tyre vulcanizing moulds
IPC: B29D30/54
Filed: 1927-03-31
Abstract: 293,119. Barnes, J. r., Barnes, W. T., and Kennedy, M. D. March 31, 1927. Moulding wheel tyres.-A mould for retreading and vulcanizing tyre covers comprises laterally separable hollow mould sections of similar curvature, one section being furnished with a hollow lateral extension to overlap and accommodate the other section, lugs being provided on both sections and furnished with holes beyond the lateral extension to receive securing-bolts. As shown, a mould section 5 provided with a heating cavity 7 telescopes into a second section 4 having a heating cavity 6 and provided with a lateral extension embracing the section 5. An interchangeable tread ring 27 is supported within the mould. Bolts 26 passing through lugs on the sections draw them together against the ring 27. The sections are formed with divergent faces 15 and the cover 29 is supported by an air or sand cover 31 which is forced outwardly by screws 33 passing through brackets 34 secured to, or embracing the sections. The mould may be circular or segmental.
Patent GB-328090-A (GB)
Title: Improvements in and relating to the washing of pulp
IPC: B01D41/02
Filed: 1929-03-20
Abstract: 328,090. Blair, Campbell, & McLean, Ltd., and Hutchin, S. March 20, 1929. Agitating materials and liquids together.-In washing pulp for use as a filtering medium, the pulp is introduced into a cylindrical vessel a and the washing water and pulp are drawn downwards together by an air or steam injector h into a pipe f which returns them to the vessel past a deflector g adapted to impart to them a swirling motion about the longitudinal axis of the vessel. Water enters the vessel continuously by a pipe k and escapes at the top through a screen b which may be provided with a water spray to avoid clogging.