baber/WOPTO huggingface dataset:
Patent GB-840914-A (GB)
Title: Rocket engines
Inventor: RAMSDEN PHILIP
IPC: F02K9/68
Filed: 1957-05-16
Abstract: 840,914. Generating combustion products under pressure. NAPIER & SON Ltd., D. Aug. 8, 1958 [May 16, 1957], No. 15668/57. Class 51 (1). [Also in Group XXVI] A rocket motor having two or more separate catalyst beds, for the decomposition of an oxidant such as hydrogen peroxide, arranged in line with and upstream of the combustion chamber, has means for causing the oxidant to flow in two or more divided parallel streams through the beds before entering the combustion chamber. The motor shown has two catalyst beds 10, 11 with a conical baffle 26 disposed between them. Hydrogen peroxide enters the motor by way of an annular gallery 23 and passes through an annular passage 25 surrounding the walls defining the nozzle 15, the throat 14 and the combustion chamber 13 to the upstream face of the upstream bed 10. Part of the hydrogen peroxide flows downstream through this bed, the decomposed products being deflected outwards by the baffle 26 to flow through the annular space 27 to the combustion chamber 13. The remainder of the hydrogen peroxide passes through the annular gap between the sleeve 18, to which the bed 10, is fixed and the tubular portion 19 of the burner 12 to reach and pass through the second catalyst bed 11 which is fixed to the portion 19, the decomposed product issuing through the channels 22 into the combustion chamber. Paraffin flows through the passage 28 to issue, through the channels 22, into the combustion chamber.
Patent GB-553351-A (GB)
Title: Improvements in and relating to bearings for vacuum or low pressure vessels
IPC: H01J35/10
Filed: 1941-12-05
Abstract: 553,351. Coating metals & alloys. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric X-Ray Corporation). Dec. 5, 1941, No. 15690. Addition to 542,665. [Classes 82 (i) and 82 (ii)] In an enclosed bearing as set out in the parent Specification, the thin film of lubricating medium comprises cobalt and an alkaline metal, such as barium, condensed thereon. The combination of cobalt and the other metal may be formed by the successive vaporization and condensation of these two metals. If the working surface is composed of an alloy containing cobalt, e.g. a high speed steel containing 18 per cent. of tungsten 9 of cobalt, 4.5 of chromium, 1.75 of vanadium, 1 of molybdenum, and 0.77 of carbon, the remainder iron, the film is produced by condensing the alkaline earth metal on the surface of the cobalt-containing alloy.
Patent GB-1431581-A (GB)
Title: Bulk material containers
IPC: B65D88/16
Filed: 1973-04-03
Abstract: 1431581 Bags F NATTRASS and P J NATTRASS 29 March 1974 [3 April 1973] 15798/73 Heading A4G [Also in Division B8]  A bulk storage bag is provided with four lifting loops 4 around its top, each loop being secured to the bag fabric by folding the fabric around each loop leg 7 and then back over itself and stitching through the three widths of the bag fabric and the leg. The bag may be woven from jute, polyethylene terephthalate, rayon, or nylon but is preferably woven from polypropylene, the fabric having a tensile strength of 150 Kg per inch width. The loop material has a breaking load of at least 600 Kg preferably 1810 Kg, and is formed by 2 inch wide woven polyethylene terephthalate webbing. The stitched-on cover 13 having a drawstring closeable opening is provided at the top of the bag, which may be provided with a detachable or fixed polythene liner. The bags may be stacked one upon the other when filled and are emptied by slitting the bottom. Alternatively, as described in Specification 1431582, a reusable bag may be provided by forming a hemmed aperture in the bottom and overlying the aperture with a replaceable polyethylene sheet, which is cut to release the contents. In another modification, the bag may be provided with a draw-string closure at its bottom.
Patent GB-308520-A (GB)
Title: Ball-game apparatus
IPC: A63F7/00
Filed: 1928-05-31
Abstract: 308,520. Handt, K. May 31, 1928. Games of chance. - A ball-game apparatus consists of an inclined playing board studded with pins down which a ball rolls by gravity into a catching space, the ball being lifted onto the playing board through an aperture by a lever mechanism operated by a cam shaft and then by dropping through one of the holes in the catching space onto a shoot under the playing board, is returned to the cup of the lever mechanism. The ball 43 is deliverred through a hole 6 in the playing board 2 and rolls between pins 1 into one of the holes 8 in a catching space formed by a curved bar 7. A number of discs 10 are loosely pivoted on an axle 9 beneath the holes 8, each disc containing an indentation 11 into which the ball may drop and cause the disc to rotate through a certain angle, the corresponding number attached to an arm 12 appearing at a window 14 in the playing board. On each end of the axle 9 is pivoted a twoarmed lever, one arm of which is attached to a bar 18 running the length of the discs and serving to keep the ball in the indentation 11 when the arm 12 is against the window 14. The other arm 19 of each lever is of loop shape and embraces an eccentric 20 mounted on a shaft 21 rotated by a handle from without the case. On the same shaft is mounted a cam 26 with laterally projecting tappets 27. The cam engages one arm 32 of a lever 30 and thereby raises to the level of the deck a cup 35 containing the ball. Simultaneously the tappets 27 engage the end 33 of another lever 31 and expel the ball from the cup onto the deck by raising a disc 36 within the cup. When the levers 30 and 31 are returned to their normal positions by the rotation off the shaft 21, the eccentric 20 working in the guides 19 of the levers causes the bar 18 to be moved so as to allow the ball to leave the recess 11 and return to the cup 35 by means of a guide 15 and a shoot 16. The shaft 21 is locked in position by a spring-controlled bolt 41 engaging in one of two notches in a disc 40 secured to the shaft 21.
Patent GB-272919-A (GB)
Title: Method of rendering higher alcohols soluble in aqueous media
IPC: C09K23/00
Filed: 1927-06-15
Abstract: 272,919. B÷hme Akt. - Ges., and Bertsch, H. June 15, 1926, [Convention date]. Carbonizing fibres, rags, and fabrics.-Stable aqueous dispersions or solutions of higher alcohols, i.e. alcohols containing four or more carbon atoms in the molecule are obtained with the use as dispersing agents of the products obtained by the method of Specifications 261,385, [Class 2 (iii), Dyes &c.], and 263,117, i.e. the products obtained by sulphonating a fat or its acid in the presence of a concentrated aliphatic acid or its anhydride or chloride. Suitable proportions are given for the preparation of solutions of (1) butyl alcohol, and (2) amyl alcohol and cyclohexanol, and reference is made also to the treatment of lydronaphthols. The dispersions or solutions may be added to the baths employed in carbonizing wool.
Patent GB-240546-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B33/04
Filed: 1924-07-03
Abstract: 240,546. Howden & Co., Ltd., J., Hume, J. H., and Owen, W. H. July 3, 1924. Composite boilers.-A boiler comprises a cylindrical shell having at least one furnace flue, a water-tube element 4 so spaced from the rear end of the shell as to form a combustion chamber 3, a mechanical stoker 15, and an ash-receiving chamber 16 below and open to the bottom of the combustion chamber.
Patent GB-185521-A (GB)
Title: Pneumatic milk extractor
IPC: A61M1/06
Filed: 1921-06-10
Abstract: 185,521. Del Castillo, M. R. June 10, 1921. Breast pumps.-Air is exhausted from a receiving-chamber E by means of a hand pump K having pivoted arms H closing against the pull of a spring I, and being adapted for use with one hand. A filter G of absorbent cotton is placed between the pump and the receiver, and from the latter a branch pipe leads to a cup A, through a valve C. The outlet pipe F also contains a valve, so that, when in use, on pressing the handles H, milk is withdrawn and collects in the receiver E, and is ejected on allowing the handles to spring apart.
Patent GB-1169316-A (GB)
Title: Installation and Process for Spraying a Medium
IPC: B05B15/50
Filed: 1968-04-03
Abstract: 1,169,316. Spray producers. STAMICARBON N.V. 3 April, 1968 [8 April, 1967], No. 16063/68. Heading B2F. Apparatus for delivering a liquid or gaseous medium to a plurality of discharge points 3 in a feed line 2, comprises a feed line having said discharge points arranged at intervals along said feed line 2, a first supply line 6 for the medium connected to one end 4 of said feed line, a second supply line 6<SP>1</SP> for the medium connected to the other end 4<SP>1</SP> of said feed line, a valve (5, 5<SP>1</SP>) in each of said first and second supply lines which valves are so interconnected 7 that when the flow of medium is at a maximum in the first supply line, the flow of medium in the second supply line is at a minimum and vice-versa, whereby on operation of the valves during continuous flow of the medium a zone of no or minimum flow velocity travels in said feed line from one end thereof to the other. The valves may be coupled mechanically, pneumatically, magnetically or electrically, and more than one feed line and more than two valved supply lines may be employed. The apparatus may be used to spray molten urea in the manufacture of melamine.
Patent GB-597397-A (GB)
Title: Improvements in or relating to piezoelectric devices
IPC: H03H3/02
Filed: 1944-08-24
Abstract: 597,397. Heating by electricity. BRUSH DEVELOPMENT CO. Aug. 24, 1944, No. 16142. Convention date, March 22, 1943. Addition to 575,068, [Group XL]. [Class 39 (iii)] [Also in Groups VIII and XL] Figs. 1 and 3 show the invention applied to joining two plates 1, 5 of pjezo-electric material. Either or both plates are provided on one surface with an electrode 3 of granular conducting material such as graphite, and the two plates are pressed together, with the interposition of metallic foil lead extensions 7, between a metallic weight 11 and a metal support 9. An electric current from a source 13 is passed through the granular electrode layer under the control of a timer 15 for a period of time sufficient to cause fusion of the material of both plates adjacent the electrodes, thus autogenously welding the plates together. The invention is applicable to piezo-electric materials such as Rochelle salt and its isomorphs and the primary alkali phosphates and arsenates. Specification 454,595, [Group XL], and U.S.A. Specification 2,266,333 are referred to. According to the Specification as open to inspection under Sect. 91, the invention may also be used for joining other fusible, electrically non-conducting materials such as cellulose acetate and other plastic materials. The electrode may be heated inductively if desired. This subject-matter does not appear in the Specification as accepted.
Patent GB-262836-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B3/04
Filed: 1925-06-23
Abstract: 262,836. Knudsen, H. June 23, 1925. Spray burners; liquid fuel supply.-A boiler adapted to operate above critical temperature and pressure is fitted with a burner of the kind described in Specification 258,657. Superheated steam generated in a coil 16 is injected into the flame close to the burner jet. The air and fuel are heated in annular passages 8, 4 in the burner by steam coils.
Patent GB-806474-A (GB)
Title: Electric lamp bulbs for road vehicle lamps
Inventor: MASTERTON JOHN
IPC: H01K1/62
Filed: 1955-06-07
Abstract: 806,474. Electric incandescent lamps. LUCAS (INDUSTRIES), Ltd., J. June 4, 1956 [June 7, 1955], No. 16289/55. Class 39(2) In order to dip the beam of light emitted by a road vehicle lamp comprising a lamp bulb associated with a reflector, the filament e is resiliently supported within the bulb, and magnetizable means are provided for moving the filament to an alternative position within the bulb. As shown, a pair of current-conducting wires b arranged parallel with each other are looped over at their ends within the bulb and secured by an intermediate insulating bridge member c to a pair of filament-supporting wires d, and another pair of wires f extending rearwardly and downwardly from the bridge c carry a piece of soft iron g between them at their outer ends. Another piece of soft iron h is embedded in an insulating plug a within the lamp cap. Magnetization of the iron parts may be effected by passing a current through a coil i surrounding the usual bulb holder. The filament normally occupies a position relative to the focus of the reflector j such that a horizontal beam is emitted by the lamp. To dip the beam the coil i is energized through a switch operable by the driver, whereby the magnetic attraction set up between the iron pieces in the bulb causes the movable piece g to move towards the fixed piece h, thereby moving the filament to the dipped-beam position.
Patent GB-457796-A (GB)
Title: Improvements in the manufacture and production of colour lakes
IPC: C09B47/24
Filed: 1935-06-05
Abstract: Colour lakes are prepared by treating a sulphonic acid of the phthalocyanine series with metal compounds suitable for laking. Suitable metal compounds are salts, oxides and hydroxides of calcium, strontium, barium, magnesium, aluminium, iron, cobalt, zinc, manganese and nickel.  In some cases laking may take place in the presence of additional substances such as resin soaps, soluble synthetic resins or dispersing agents.  In examples: (a) the sulphonation product of copper phthalocyanine is converted to the sodium salt and an aqueous solution treated with barium chloride, calcium chloride, zinc chloride, magnesium or manganese salts, aluminium hydroxide, barium chloride in presence of resin soap, a substratum of heavy spar, aluminium hydroxide and blanc fixe, followed by precipitation with aqueous barium chloride, a substratum of lithopone, zinc white or calc spar, followed by precipitation with barium chloride; alternatively, the dye is suspended in solution with the azo dye 2.5-anilinedisulphonic acid --> 1-(2<1>.5<1>-disulphophenyl)-5-pyrazolone-3-carboxylic acid and with a substratum prepared by treating a suspension of heavy spar in a solution of aluminium sulphate and soda with barium chloride, and the lake precipitated by adding barium chloride; the resulting filtered paste together with vegetable glue may be brushed on wall paper (green); more greenish shades are obtained by using a metal-free phthalocyanine sulphonic acid; (b) the sulphonation product of a nickel phthalocyanine in the form of the sodium salt is mixed in aqueous solution with the precipitate prepared from barium sulphate, aluminium sulphate, sodium carbonate and barium chloride and a colour lake precipitated by adding barium chloride; the sulphonation product of a zinc phthalocyanine may similarly be converted into a lake, and also the phthalocyanine derived by heating 2.3-dicyanonaphthalene with a mixture of nitrobenzene, pyridine and cuprous chloride followed by sulphonation with oleum at room temperature, this latter lake being suitable for colouring wallpaper (green); (c) an aqueous solution of the sodium salt of the sulphonation product of the metal-free phthalocyanine is mixed with resin soap and precipitated by means of barium chloride. Specification 322,169, [Class 2 (iii)], is referred to.
Patent GB-1416032-A (GB)
Title: Alarm clock mechanism
IPC: H01H43/10
Filed: 1973-04-05
Abstract: 1416032 Time switches GENERAL ELECTRIC CO 5 April 1973 [7 April 1972] 16401/73 Heading H1N [Also in Division G3] An alarm clock mechanism comprises a switch 202, a timing motor (not shown), a sleep cam 215 operably connected to said switch for closing it for a predetermined time interval, manual means for moving said sleep cam to open or close said switch, ratchet teeth 298 on said sleep cam 215 for moving it from a switchclosed position to a switch-open position by said timing motor, a pawl lever 300 with a pawl 305 and means to move it into engagement with said teeth 298, drive mechanism connected to said timing motor for moving said pawl back and forth to step said sleep cam 215 as a function of time to thereby open said switch at the end of said time interval. As shown the alarm cam mechanism is as disclosed in Specification 1,416,031 and actuates switch 202 by specially shaped lever 212 upon axial movement of rod 242, the lever 212 being coupled to sleep cam 215 by lever 268 which is pivoted at 274 and has a cam-follower nose 276. An eccentric (106, Fig. 2, not shown) driven by a synchronous motor (111) oscillates lever 86 (Fig. 9) about pivot 88 once per minute. Lever 86 carries a pawl (84) to step a cam 52 for digital time indication, but the pawl 300, pivoted at 307 on lever 86, engages ratchet teeth 298 only when permitted by flats 324 and 326 twice per revolution of cam 52, i.e. every five minutes. Thus sleep cam 215 is stepped one increment every five minutes. After a sleep period, predetermined by setting the initial angular position of cam 215 by means of shaft 304, notch 294 is brought under nose 276, and lever 268, urged by a spring (278, Fig. 5, not shown), lifts lever 212 which is cammed by shaft 242 to move transversely and opens contacts 206, 208. Besides setting a short time interval the sleep cam 215 may be set manually to ON and OFF positions in which the lever 268 is respectively cammed into high or low notches 301 and 294, to close or open the contacts 206, 208. In these positions of cam 215 a smooth portion 306 without ratchet teeth is adjacent pawl 305 and no stepping can occur.
Patent GB-983066-A (GB)
Title: Improvements in or relating to vacuum pumping sets
Inventor: ROLLINGER WILLY
IPC: F04C28/28
Filed: 1962-04-30
Abstract: 983,066. Vacuum pumps. LEYBOLD HOLDING A.G. April 30, 1962, No. 16480/62. Heading F1F. A vacuum pumping set comprises an exhauster in which there is no contact between the periphery of the rotor, such as a Roots blower, and a backing pump of smaller capacity than the blower and preferably of the rotary type. The Roots' blower is driven by an electric motor which is stopped when the pressure rise across the blower reaches a predetermined valve to prevent jamming due to excessive thermal expansion. A time switch switches the electric motor on at prescribed intervals, and a thermal cut-out responsive to the temperature rise, and hence the pressure rise in the blower stops the motor before an excessive temperature develops. Eventually, the blower inlet pressure will be so small that a temperature rise sufficient to operate the cut-out is not produced, and the blower will operate continuously. The cut-out may alternatively be responsive to the load on the driving motor, or the current supplied to the motor
Patent GB-594197-A (GB)
Title: Improvements relating to worm gear drives
IPC: F16H1/16
Filed: 1945-06-28
Abstract: 594,197. Worm and wheel gearing. PRECISION DEVELOPMENTS CO., Ltd., and OLAH, G. June 28, 1945, No. 16501. [Class 80(i)] For cooling, a worm gear drive the side covers 9 of the casing are arranged close to the lateral faces of the worm wheel 2 so that heat is readily conducted through an oil film maintained between the faces of the worm wheel and the casing by discs 17 rotating with the worm shaft and supplying oil by viscosity action through channels 22, 21. Fins 26, 27 are supplied on the external parts of the casing and a fan 24 is mounted on the worm shaft to direct air over these fins.
Patent GB-601694-A (GB)
Title: New cellulose derivatives and their process of preparation
IPC: D06M15/41
Filed: 1945-06-28
Abstract: Cellulose derivatives having low swelling characteristics in water are obtained by adding a monomeric trimethylolphenol to an aqueous dispersion or solution of cellulosic material containing free hydroxyl groups whereby the trimethylolphenol forms bridge linkages between the cellulose molecular chains, separating the so-treated cellulosic material and subjecting it to heat, if desired in the presence of an acid catalyst, whereby the bridge linkages undergo internal polymerisation.  The catalyst, e.g. lactic, acetic or phosphoric acid may be added to the dispersion medium or the cellulose derivative may be treated with the catalyst after being precipitated or separated from the dispersion medium.  Examples are given, in which (1) trimethylolphenol is added to aqueous cellulose pulp which is then converted into paper, the paper being treated with lactic acid and heated at 140 DEG  C.; (2) trimethylolphenol is added to an aqueous solution of oxyethylcellulose, the solution being poured on to glass and the so formed film dried at 80 DEG  C.  The film is then rinsed with aqueous lactic acid and heated at 120 DEG C.  Specifications 601,695 and 601,696, [Group IV (b)], are referred to.
Patent GB-240107-A (GB)
Title: Improvements in steam or other fluid engines
IPC: F01B3/00
Filed: 1925-06-26
Abstract: 240,107. Reede, A. A. W. van. June 26, 1925. Rotary conical valves.-In a steam or other fluid-pressure engine acting upon the uniflow principle and comprising cylinders 2<a> &c. parallel to a shaft 8 carrying a swashplate 5, the engine pistons 3 carrying rotatable thrust-rods 4 with shoes 6 bearing against the swashplate, the cylinders have different diameters and the pistons have different strokes to enable the working fluid to pass through the cylinders in succession and expand down to its end pressure. As shown, admission, distribution, and exhaust are effected by a conical valve made in two or more parts 14, 15 adjustable relatively to one another and to a spindle 30 by a set screw 31, in order to vary the times of admission and cut-off. A bush 16 for the valve is seated in a sleeve 29 concentric with the shaft 8, and is secured to a shaft 17 carrying a handle 18 by which it is adjusted for reversing. High-pressure fluid is admitted by an inlet 19 and passages 202, 201, 20 in the valve, the bush 16, and the cylinder 2<a> respectively. At the end of the stroke, the fluid passes through a cylinder port 23 to a chamber 24, from which it enters the low-pressure cylinder through a valve port 211 and ports in the bush 16 and the cylinder- The low-pressure cylinder exhausts through terminal ports to an exhaust chamber 27. Specification 218,061 is referred to.
Patent GB-755366-A (GB)
Title: Improvements relating to fluid-pressure actuators
IPC: F15B11/22
Filed: 1954-06-04
Abstract: 755,366. Single stroke apparatus. GENERAL MOTORS CORPORATION. June 4, 1954 [June 22, 1953], No. 16557/54. Class 8(2).] Also in Group XXIX] A plurality of fluid-pressure operated self-locking actuators are interconnected for operation in synchronism, and if for some reason the locking mechanism of one or more, but not all, of the actuators fails to release upon the application of pressure fluid, all the actuators will nevertheless move in synchronism. Each actuator comprises a cylinder 15 and piston 18 co-operating with a screw shaft 29. One end of the shaft 29 carries a cam 31, pairs of rollers 41 being disposed on flats 33 of the cam and urged apart by springs. Arcuate surfaces of the cam are surrounded by fingers 43 carried by a flange of a shaft 36, and there is a tongue-and-slot connection between the cam 31 and the flange. A brake band 45 co-operates with a ring 44 surrounding the fingers 43 and rollers 41 and in the absence of pressure fluid in the cylinders the brake is applied to lock the screw shaft, and hence the piston, in position. On application of pressure fluid to either side of the piston, pressure is also applied to a piston 50 which is moved against spring pressure to release the brake. Each shaft 36 carries a sprocket wheel 65, and the sprocket wheels of all the actuators are inter-connected by a chain so that the actuators are moved in synchronism. If the lock mechanism of one of the actuators fails to release, the chain is driven by the other actuators and thus the shaft 36 and fingers 43 of the locked actuator are rotated, partially releasing the rollers 41 and allowing the cam 31 to be rotated. Rotation of the screw shaft effects movement of the piston of the actuator in synchronism with the others in the absence of pressure fluid being applied to this actuator. Specification 683,633 is referred to.