baber/WOPTO huggingface dataset:
Patent GB-755178-A (GB)
Title: Improvements in or relating to steam traps
IPC: F16T1/16
Filed: 1954-09-07
Abstract: 755,178. Steam traps. SPIRAX-SARCO, Ltd. (Sarco Co., Inc.). Sept. 7, 1954, No. 25872/54. Class 64(2). Relates to steam traps comprising a body 1 formed internally with a high pressure chamber U and a low pressure chamber L which communicate with one another, one of which chambers contains a sealing member 4 adapted to co-operate with one fixed seat 10 to cut off free communication between the chambers and with a second fixed seat 8 to cut off, simultaneously, all communication between the low pressure chamber L and an inlet passage 9 adapted to be connected into a steam system,. from which low pressure chamber L an uncontrolled discharge passage 7 opens. According to the invention, the sealing member 4 is adapted simultaneously to abut the seat 10 between the high and low pressure chambers and the seat 8 between the inlet passage and the low pressure chamber and thereby cut off completely all inter-communication between the said chambers and passage. The trap shown operates as follows :Initially, e.g. when steam is being admitted to the system the pressure of the steam causes air and condensate to accumulate in the passage 6 where eventually the rising steam pressure is sufficient to lift the valve plate 4 so that the air and condensate flow through the port 9 to the low pressure chamber and thence to the trap outlet 7. As the system receives still more steam and becomes hotter, some of the condensate leaving the trap flashes into steam as it flows across the seat 8, and enters the chamber U where a steam pressure is gradually built-up until ultimately the pressure in the chamber U overcomes the pressure at the trap inlet 6 and moves the valve plate on to the seats 8, 10. The valve plate then remains in this position, the vapour pressure in chamber U being maintained by heat transferred through material of the valve plate from the steam at the inlet passage 6. When, however, air and condensate begin to collect at the passage 6 the heat is insufficient to maintain the steam pressure in the chamber U, which pressure eventually falls and allows the steam in the system to lift the valve plate and force out the accumulated air and condensate to the outlet 7.
Patent GB-882384-A (GB)
Title: Improvements relating to hand tools
Inventor: CHANCE JOHN ROBERT WILLIAM
IPC: B25G1/00
Filed: 1959-07-29
Abstract: 882,384. Hand-tool handles. RABONE & SONS Ltd., JOHN. July 25, 1960 [July 29, 1959; Dec. 15, 1959], Nos. 25949/59 and 42518/59. Class 61. [Also in Group XX] A saw or other metal blade, such as the blade 3 of a try square, is secured within a slot in a handle or stock 4 by a plurality of metal studs 8 welded to the face of the blade 3 and projecting normally thereto through closely surrounding apertures in the handle or stock. The studs 8 are cup-shaped to facilitate welding and the mouths are closed by facing discs 9.
Patent GB-1509418-A (GB)
Title: Coating compositions
IPC: C08G18/67
Filed: 1975-06-18
Abstract: 1509418 Urethane group-containing coating compositions PROLUX PAINT MFRS (PTY) Ltd 18 June 1975 [25 June 1974 (2)] 25955/75 Heading C3R Urethane group-containing coating compositions comprise adducts prepared by reacting isophorone diisocyanate in the presence of a catalyst and a solvent with a polyhydroxyl compound in an amount of substantially 1 mole of the diisocyanate to each hydroxyl group, and then condensing the product so obtained with an hydroxyl group-containing allyl ester of an aliphatic diol or polyol in the presence of a solvent. The preferred polyhydroxyl compound is the reaction product of a polybasic acid with an epoxy compound, which is suitably a glycidester of the formula wherein R is the residue remaining after removal of the carboxylic acid group from a carboxylic acid. Alternatively the polyhydroxyl compound may be a copolymer of (i) an alpha,#-ethylenically unsaturated ester containing at least one hydroxyl group and (ii) one or more other ethylenically unsaturated compounds. Monomer (i) is most suitably a reaction product of an alpha,#-ethylenically unsaturated mono- or di-basic carboxylic acid or anhydride, and/or an (oxy)alkyl hemiester of such a dibasic acid, with an epoxy compound which is preferably a glycidester of the above formula. The allyl ether may be allyloxyisopropanol, trimethyl propane diallyl ether, trimethylol propane monoallyl ether, glycerol diallyl ether or pentaerthritol triallyl ether. The allyl groups in the final product may be partially polymerized in the presence of a peroxide catalyst. With the addition of cobalt soaps, the allyl ether derivatives dry to form hard films.
Patent GB-1518701-A (GB)
Title: Generating musical sounds
IPC: G10H1/46
Filed: 1975-06-19
Abstract: 1518701 Electrophonic musical instruments CMB COLONIA MANAGEMENT - UND BERATUNGSGES mbH & CO KG 19 June 1975 [21 June 1974] 26074/75 Heading G5J In synthesizing a sound of fixed pitch but with a partial tone structure in which the partial tones (fundamental and harmonics) vary in relative amplitude in dependence on volume, a plurality of electrical signals is provided each having a frequency or frequency components corresponding to one or more partial tones of the desired sound and these signals are combined in proportions dependent on volume so that the amplitude of each partial tone frequency in the combination is a smooth function of volume. In Fig. 1 two signals are generated at 12, 14 which are the "loud" and "soft" versions of the sound (independent of the actual level at which they are reproduced) and these are mixed by potential dividers 16, 18 according to the setting of a key 20; as shown the soft version predominates when the key is first depressed and as the key is depressed further for a louder sound more of the "loud" version is mixed in. Each version may be provided by oscillators and filters or individually recorded or (Fig. 2, not shown) each may be filtered from a single signal containing all the harmonics. Alternatively (Fig. 3, not shown) the individual harmonics are separately produced by frequency division and the desired proportions mixed by voltage controlled amplifiers. In another alternative (not shown) the "loud" and "soft" signals are recorded on adjacent magnetic recording tracks and mixed by a single head which can be moved across the tracks to adjust the proportion of each.
Patent GB-775168-A (GB)
Title: Improvements in or relating to closures for pressure vessels
IPC: F16J13/10
Filed: 1955-09-12
Abstract: 775,168. Closures for resisting fluid pressure. LUMMUS CO. Sept. 12, 1955 [Sept. 24, 1954], No. 26098/55. Class 123 (1). A closure 16, Fig. 1, for, for example, the high-pressure heat exchanger described in Specification 639,902, is retained within an annular wall 10 by the engagement of a shear key element 18, in the form of a split or segmental ring, with a groove 10a in said wall, and fluid tightness is effected by a channelshaped soft metal, &c. gasket 24 which is located in the groove 10a to embrace a projecting portion 18a of the element 18 and extends from the groove at 24a to lie between an outer face 16c of the cover and the opposed face of the key portion 18a. As shown, the end 24b of the gasket 24 preferably extends along the load-resisting surface 10c of the wall 10. The key element 18 is secured in position by a ring 20 which is interposed between the projecting outer end 16a of the cover and the element and is retained in place by keepers 22. In a modification, Fig. 5, a split key ring 138 and gasket 140 are retained in the annular channel 136 of a wall 134 by a solid ring 142 bolted to the cover 132. The key element may be provided with hardened ring inserts adjacent the terminal sealing surfaces of the soft metal gasket in which case the opposed seating surfaces 10c, 16c are preferably serrated.
Patent GB-1024124-A (GB)
Title: Improvements relating to engine indicators
IPC: G01L23/26
Filed: 1963-07-02
Abstract: 1,024,124. Engine indicators. C. CONNELL. Sept. 18, 1964 [July 2, 1963], No. 26113/63. Heading G1L. In a device for use with pressure/volume indicators for reciprocating multi-cylinder engines a piston 18 driven by a crank-shaft 12 rotated by the engine crank-shaft at engine speed rotatively oscillates the indicator drum by a flexible member 26 and is slidable in a cylinder 17 provided in a housing 16 rotatably mounted and held in the adjusted position by bolts 22 and a ring 27 so that the piston 18 reaches its top-dead-centre position at the same time as any one of the engine cylinders under test.
Patent GB-361455-A (GB)
Title: Improvements in or relating to hub structures
IPC: B60B3/16
Filed: 1930-09-02
Abstract: 361,455. Detachable wheels. BUDD WHEEL CO., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Reed, G. B. ; 2500, Hunting Park Avenue, Philadelphia, U.S.A.) Sept. 2, 1930, No. 26156. Convention date, Sept. 3, 1929. [Class 144 (i).] The bolt holes for use in attaching a wheel having a hollow metal hub are formed by tubes each having a seat for a nut &c. arranged within the body of the hub. The invention is shown applied to wheels formed from two metal stampings welded together in the mid-plane of the wheel. As shown in Fig. 2, the metal of the stampings 12, 13 is offset at 15, 14 around the bolt holes and formed with two facing flanges 16 in different diameters. Tubes 17, each having a flared portion 18 between its ends, are welded to the flanges 16, and these tubes may be reinforced by shorter tubes 19<1> having correspondingly flared end portions 20. The flared , portions form seats for the nuts 23, the construction permitting artillery wheel hubs to be fitted over short bolts 22 such as are used with the hubs of disc and wire wheels. In a modification, the tube 17 may be formed with a thickened flared portion instead of using a reinforcing sleeve 19<1>. Fig. 8 shows a modification in which the flanges 16 are connected by plain tubes 25 each having a spherical seat 271 for the nut 30. Fig. 10 shows a further modification in which the hub portions 31, 32 of both wheel stampings are outwardly offset and then inwardly flanged to receive mating flanges on the tubes 35.
Patent GB-163631-A (GB)
Title: Improved spring suspension for railway wagons
IPC: B61F1/14
Filed: 1920-09-11
Abstract: 163,631. Addis, F. H. Sept. 11, 1920. Axle-trucks and hogies; springs, arrangement of.-In a four-wheeled railway wagon, a frame fixed on the axle boxes of one pair of wheels forms a carrier for the supporting-springs placed near the centre-line of the vehicle, the other pair of wheels being supported in the usual manner, thus permitting the weight of the wagon to be more equally distributed on all four wheels. A rectangular framework encloses both wheels of the axle, the two end members 1 being fixed to the axle-boxes 2. Two longitudinallyplaced leaf springs 3, spaced near the centre-line of the vehicle, have their free ends supported by the side members 4 of the frame, each being fixed at its centre to the underframing of the vehicle. The other pair of wheels are supported in the usual manner so that the wagon is supported by springs at approximately three points.
Patent GB-518298-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K21/20
Filed: 1938-09-07
Abstract: 518,298. Alternating-current motors. BRITISH THOMSON-HOUSTON CO. Ltd. Sept. 7, 1938, No. 26162. Convention date, Sept. 8, 1937. [Class 35] A synchronous motor has on the rotor an axially magnetised magnet extending between disc members having the same number of evenly spaced teeth, alternate teeth in each member extending axially in opposite directions, and each rotor member co-operates with a stator element having a winding concentric with the rotor and having two sets of teeth extending axially towards one another, there being equal numbers of evenly spaced-teeth in the stator and rotor members and the teeth of one of the stator or rotor elements being displaced with regard to those of the other stator or rotor element. In the form shown, discs 13 at one end of the magnet 10 have equally spaced teeth 18, 19 extending in opposite directions and co-operating with teeth 25a, 26a extending from discs 22a, 23a on each end of a stator winding 20a. Discs 12 at the other end of the magnet have teeth 16, 17 co-operating with stator teeth 25, 26 associated with winding 20, the four sets of stator teeth being in axial alignment. The windings may be in series or parallel or may carry currents phase displaced by a condenser 33. The sets of teeth at the two ends of the rotor may be staggered a quarter or a half rotor tooth pitch. One coil only may be energized if desired. Specifications 490,708 and 490,875 are referred to.
Patent GB-1500276-A (GB)
Title: Two-part electrical connectors and electrical interlocks including them
IPC: H01R13/707
Filed: 1974-06-12
Abstract: 1500276 Two part couplings SMITHS INDUSTRIES Ltd 12 June 1975 [12 June 1974] 26177/74 Heading H2E A two part electrical connector 1, 3 has main contacts 8, 9 and auxiliary contacts comprising pin contacts 14 on the first part 3 and a resilient wire loop forming a single bridging contact 15 on the second part 1. The auxiliary contacts may form an isolation circuit for the main circuit as follows. Engagement of the two parts completes an auxiliary circuit including a switch 5. Thus causing the main contact 9 to be energized. Similarly on disengagement the main contact is de-energized. This ensures that the contacts are never live when disengaged. The two parts of the connector may be held in place by a bayonet ring fixing 11 engaging studs 12 on the outer casings of the two parts (depicted in detail in Figs. 2 and 3, not shown). In the embodiment shown the part 3 represents the E.H.T. power supply to a cathode ray tube and the part 1 terminates the cable leading to the tube.
Patent GB-1412515-A (GB)
Title: Manufacture of organosiloxane-oxyalkylene block copolymers
IPC: C08G77/46
Filed: 1973-06-01
Abstract: 1412515 Preparation of organosiloxaneoxyalkylene block copolymers; stabilizing polyurethane foams WACKER-CHEMIE GmbH 1 June 1973 [2 June 1972] 26181/73 Headings C3T and C3R An organosiloxane-oxyalkylene block copolymer is obtained by reaction of an organopolysiloxane having at least one Si-bonded H atom with a polyoxyalkylene having at least one alcoholic OH group in the presence of an undissolved alkaline substance of surface area at least 20 m.<SP>2</SP>/g. Preferably the alkaline substance has a surface area below 800 m.<SP>2</SP>/g. and gives a pH of 7.5-10.0 at 18 C. in a 10 wt. per cent aqueous suspension: alkaline clays and earths, activated sodium bentonite and active charcoals are suitable. The process is desirably carried out at 20-180 C. and 680-800 mm. Hg, and may be continuous-the entire mixture being passed through a heated zone, or the siloxane and polyoxyalkylene being passed over a fluidized bed of the catalyst. In examples activated Na bentonite is added to and a CH 3 SiO 1.5 /CH 3 SiHO/(CH 3 ) 3 SiO 0.5  copolymer in toluene, and an activated charcoal is added to HO(C 2 H 4 O) 8 H and a (CH 3 ) 3 SiO/ CH 3 SiHO/(CH 3 ) 3 SiO 0.5  copolymer in xylene; after reflux the solvent and catalyst are removed to give oils of viscosity 850 or 1580 cSt/25 degrees. Uses.-Stabilizing polyurethane foams; emulsifying and de-emulsifying, levelling lacquers, antistatic agents, cosmetics, fire-extinguishing, yarn lubricants, textile brighteners, cleaning agents in windscreen washer units, and rubber inner-tube lubricants.
Patent GB-1085932-A (GB)
Title: Improvements in or relating to discharge trolleys for twinslotted bunkers or dumps
IPC: B65G65/48
Filed: 1965-06-21
Abstract: 1,085,932. Emptying storage chambers from below. MASCHINENFABRIK BUCKAU R. WOLF A.G. June 21, 1965 [June 24, 1964], No..26237/65. Heading B8E. A trolley for discharging material from twinslotted bunkers or dumps comprises a rotatable bucket wheel 9, Fig. 1, adapted to selectively enter each slot 6, 7 of the bunker or dump, the trolley having a table 29 or 30 on each side thereof adapted to form an extension of an adjacent bunker or dump delivery table 4 or 5, and a delivery shoot 33 is arranged between the tables 29, 30 for receiving the material. The trolley has wheels 13 running on rails 14 and is driven by a motor 38. A wheeled frame 15, Fig. 2 (not shown) is mounted on the trolley frame 12 for lateral movement along rails 17 and carries the wheel 9. Operating stands 20, 21 are provided at the ends of the frame 12 with access ladders or steps 22, 23. The shoot 33 delivers the material to a conveyer 11 the upper belt run of which is supported by deflectable rollers 25 preventing jamming of the material between the shoot and the belt. A driven roller grid 36 is provided in the shoot 33 to break the fall of larger pieces of the material. The side walls 34 of the shoot may be vertical. The trolley may be supported on the conveyer frame. Several trolleys may feed the same conveyer.
Patent GB-1435607-A (GB)
Title: Method of frictionally butt welding  pipes
IPC: B23K20/12
Filed: 1973-06-01
Abstract: 1435607 Welding by pressure KAWASAKI JUKOGYO KK 1 June 1973 26367/73 Heading B3R In friction butt welding metal pipes 1a, 1b having externally bevelled ends a metal ring 3 having a radially outwardly diverging crosssection located in abutting relationship to the bevelled ends, the ring is forcibly rotated between the pipes while applying a compressive force between the pipes to raise the temperature of the abutting surfaces, the rotation of the ring is terminated and a final compressive force is applied to the pipes to weld the pipes to the ring. In an embodiment the bevelled ring 3 is of a metal, the same as or different from, that of the pipes and is provided with external gear teeth 20 and these teeth are engaged with teeth 21 on a ring gear 4 which is rotated by a gear 5 on a shaft 22. The ring 3 is rotated while the pipes are under an initial compressive force and when welding temperature is reached, rotation of the ring is stopped and an increased compressive force is applied. The ring may be of triangular cross-section as in Fig. 5 or may alternatively be of trapezoidal cross-section as in Fig. 6. A number of pairs or pipes may be welded by employing a single central drive gear to rotate a number of ring gears arranged on the insert rings.
Patent GB-444189-A (GB)
Title: Improvements in or relating to shuttleless looms
IPC: D03D47/24
Filed: 1934-09-14
Abstract: 444,189. Looms with stationary weft supplies. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and POOL, W., c/o British Celanese, Ltd., Spondon, near Derby. Sept. 14, 1934, No. 26415. Addition to 412,612. [Class 142 (ii)] In weft measuring and selecting devices of the kind described in the parent Specification, the latches 64a .. 64d for locking the discs 30a.. 30d against rotation form part of a rectangular framework 62, 63 that is moved vertically by an horizontally-reciprocated slotted bar 67 engaging pins in the frame members. The upper latches are spring loaded, while spring-loaded plungers engage notches opposite to those engaged by the latches to prevent back lash. The holding and cutting trapping members are loaded independently by springs 91 engaging loose plates connected to the spindles of the trapping devices. The weft length compensating devices described in the parent Specification may be dispensed with by causing the cutting trapper to produce a shorter weft loop when severing the loop from the supply than the loop formed while the cutting trapper merely holds the weft end.
Patent GB-284379-A (GB)
Title: Improvements in or relating to the manufacture of engine cylinders and valve chests
IPC: B23K31/02
Filed: 1926-10-22
Abstract: 284,379. Whitehead Torpedo Co., Ltd., and Jones, A. E. Oct. 22, 1926. Valve chests.-The valve chest, particularly of a radial-cylinder torpedo engine, is formed separately as a steel forging A having projections A<1>, A<2> at right angles to each other, in which the outlet passage B and the inlet passage D, respectively, are formed by milling or pressing. The lower part of the outlet passage is completed by a curved plate C, preferably cut from a cupped disc. The plate C is attached by welding and the end of the passage B is curved to fit the engine cylinder, to which it is secured by welding. The passage D may be inclined downwards by cutting notches in the side walls and bending the top wall down from the position D<1> and welding up. The shape of the passage D is preferably triangular to correspond to a similar flange on the inlet nozzle E, which is secured by welding. The ports b, d are preferably formed by slot milling. Specifications 228,313; and 284,024, [Class 122 (i), Engine and like cylinders &c.], are referred to.
Patent GB-723227-A (GB)
Title: Machine for gauging cylindrical articles
Filed: 1951-11-12
Abstract: 723,227. Gauging-apparatus. VELLA, L. Nov. 12, 1951 [Nov. 16, 1950], No. 26434/51. Class 106 (2). A machine for gauging the diameters of cylindrical articles, e.g. pressure rollers for spinning - machines, comprises two rotat - able cylindrical rollers 3, 4 with parallel axes, one roller 3 being mounted for rotation on an eccentric axis 3<1> passing therethrough and means being provided to rotate this roller to vary the gap between the rollers until a cylin. drical article with its axis parallel to the rollers is able to pass between them. As shown in Fig. 3, rollers 3, 4 are mounted between uprights 2, and the roller 3 is rotated in discrete steps under control of a lever 5 which is rocked about 24, Fig. 4 to cause a pin 25 to operate, alternately pawl levers 19, 20 connected by a spring 23, each operation permitting a half step of spring-urged ratchet-wheel 18 carried at one end of the roller 3. The pivot 22 of lever 19 is eccentrically mounted so that the offsetting between the pawl ends of the levers can be adjusted by lever 15. The roller 4 has a pinion 26 at each end which engages the teeth of a rackplate 17, Fig. 5, secured to the associated upright 2, one plate 17 being slightly adjustable by a handle 16 to set the roller 4 initially in exact parallelism with roller 3; the roller 4 carries also a knob 8, Fig. 3, at each end, one knob being screw-threaded for clamping and the other being fixed to the roller for rotating it along the rack plates for coarse setting. In operation, the roller 4 is first set by the knobs 8 at a distance from 3 slightly less than the minimum diameter. of the articles to be gauged. A feeder 12, Fig. 6, supported by trunnions 33 on brackets 11 is loaded with articles and is tilted to discharge an article between rollers 3 and 4. The lever 5 is then operated to step the roller 3 and, simultaneously, an indicator.7, until the article falls on to the opened cover 10 when it is placed in a compartment of a sorting rack 13 corresponding to the indicated diameter. The indicator 7 and roller 3 can be reset to the initial position by lever 6.
Patent GB-1397893-A (GB)
Title: Pharmaceutical compositions
IPC: A61K47/38
Filed: 1973-06-04
Abstract: 1397893 Pharmaceutical compositions MERCK & CO INC 4 June 1973 [9 June 1972 30 June 1972] 26492/73 Heading A5B Anti-inflammatory compositions for topical administration comprise 2'-(4-pyridyl)-6, 16α- dimethyl-11#-17α, 21-trihydroxypregna-4, 6-diene [3, 2-c] pyrazol-20-one or a pharmaceutically acceptable salt thereof and a clear waterwhite gel including water, at least one organic solvent such as ethyl alcohol, isopropyl alcohol, propylene glycol, glycerine, 2-octyl dodecanol and methyl pyrrolidine, and at least one thickening agent such as hydroxyethyl cellulose, hydroxypropyl cellulose and a carboxypoylmethylene having a molecular weight of 940. The composition may also contain a stabilizing agent such as disodium edetate, sodium citrate, dipotassium edetate and citric acid.