baber/WOPTO huggingface dataset:
Patent GB-482056-A (GB)
Title: Braking system
IPC: B60T8/34
Filed: 1936-11-23
Abstract: 482,056. Fluid - pressure brakes. COMPAGNIE INTERNATIONALE DES FREINS AUTOMATIQUES, SOC. ANON. Nov. 23, 1936, No. 31996. Convention date, Nov. 22, 1935. [Class 103 (i)] A liquid circulating system comprising a pump 7 and operating a brake cylinder 5a, is controlled by a valve 10 held on its'seat by a closing force which decreases with the speed of the vehicle, such as an electromagnet 11 energized from a dynamo 12 driven by the vehicle wheels so that as the vehicle slows the valve is allowed to rise and release pressure from the brake cylinder 5a allowing the liquid to escape back to the reservoir 22. Braking is first obtained by a cylinder 4a supplied with compressed air from a reservoir 6 by a valve 14, further movement of which by means of contact 19 closes the circuit fo dynamo 12 and electromagnet 11. A second electromagnet 16 may hold the valve 10 open, which is closed by a spring 15 when the circuit of the magnet 16 is broken by a break away of the train, thus automatically producing braking. A single cylinder may replace the cylinders 4a, 5a and the reservoir 6 is adapted to supply liquid under pressure to this cylinder. The valve 10 or the electromagnet 11 may be controlled by a centrifugal device or the electric circuit of the valve may be controlled by a centrifugal device. The contact 19 may be operated automatically by a piston acted on by the pressure fluid in the cylinder 4a.
Patent GB-320436-A (GB)
Abstract: 320,436. Astrawerke Akt.-Ges., and Greve, J. E. W. July 25, 1928. Adding-apparatus ; displaying items. - In a single bank machine such as is described in Specification 183,881, with a travelling field of stops 18a, set column by column by the key depressions and controlling eventually the descent of type bars 13, item-indicating sectors 27 are freed successively by the key depressions and move differentially under spring action until arrested by the stops set. The sectors pivoted at 26 have toothed extensions 25 meshing with racks 24 guided vertically in the stop carriage 8. When a key is depressed a universal bail 12 rocks a lever 34 to withdraw a plate 28 holding up a corresponding rack 24. The rack thereupon descends under the action of a spring until it meets the stop protruded by the key. The 00 and 000 keys are extended as at 43 and 44 to take under pins on supplementary levers 45, 46 which have overlapping lugs 45<a>, 46<a>. When either of these keys is depressed therefore it produces the withdrawal of its own stop and also of those one or two places to the left. In the subsequent operation of the machine, the sectors and racks are restored by a bail 41 and the plates 28 are pushed back by a bar 42.
Patent GB-506011-A (GB)
Title: Improvements in vessels for use in the melting of butter, lard and other fats
IPC: C11B1/12
Filed: 1937-11-22
Abstract: 506,011. Butter &c. softeners. DEWHURST, J. Nov. 22, 1937, No. 32048. [Class 84] A device for use in melting butter, lard, and other fats consists of a hollow vessel a adapted to be filled with hot water, the vessel being of wedge shape and having a handle b secured to its broader end, a conical strengthening piece b<1> being disposed at the join between the vessel a and the handle b and fixed to the vessel and to the handle. In one form, the body portion of the vessel a, Fig. 3, is provided with a filling opening closed by a screwed stopper d. In a modification, the handle b, Fig. 4, is secured to a metal portion b<3> which screws into a filling aperture in the end of the vessel and acts as stopper, In a further form, the hot water is inserted through the, handle b, Fig. 5, the filling aperture being closed by a wooden plug f which has an extension g secured to a screw nut h which can be turned by means of a key inserted in holes therein to secure the plug f in position. The handle b is provided with a porcelain cover k. The vessel a and handle b are preferably made of sheet metal.
Patent GB-324947-A (GB)
Title: Improvements relating to seats, mattresses or the like
IPC: A47C23/30
Filed: 1928-11-05
Abstract: 324,947. Lamplugh, H. A., and Lamplugh Spring Seats, Ltd. Nov. 5, 1928. Spring surfaces.-A resilient edge is provided for a spring surface of the blade-spring type by positioning above the springs 4 a resilient frame or panel 2, preferably built up of strip steel, the edges of which are capable of free movement independently of the blade springs. The latter may if desired be reinforced by other similar springs 21 and the sides 6 of the seat frame may act as stops to limit the deformation of the main springs.
Patent GB-357403-A (GB)
Title: Improvements in and relating to sound warning devices
IPC: G10K9/04
Filed: 1930-10-27
Abstract: 357,403. Warning horns. RONCONI, D., 2659, East 75th Street, Chicago, U.S.A. Oct. 27, 1930, No. 32215. [Class 13.] A power-operated motor vehicle horn of the type in which air under pressure is supplied to trumpets, is provided with a disconnectible clutch 9, 13 between the blower and the motor of the vehicle. A series of reeds 36, giving a melody warning, have the outlets closed by valves 37 on levers 38 which are operated by cams on a rotary controller 80. Two or more series of cams may be provided on the controller, each series belonging to a separate melody, and the controller is removed bodily and displaced longitudinally to bring a fresh series of cams into operation. The cam shaft is geared to a shaft 6 carrying a fan blower in a casing 33. To sound the horn, the switch 20 of a magnetic clutch 9, 13 is closed to couple the shaft 6 to a continuously driven shaft 4. Another form of controller, Figs. 4 and 5, comprises a perforated cylinder 85, rotated from the shaft 23, Fig. 1, and two perforated pipes 87, 88, the latter rotating with the cylinder 85. Air from the pipe 87 can thus pass to one or more holes d .. k leading to the reeds 36.
Patent GB-660082-A (GB)
Title: Preparation of 2-chloro-4-alkoxy-5-nitrotoluene and 2-chloro-4-alkoxy-5-aminotoluene
Filed: 1949-12-15
Abstract: 5-Nitro-4-alkoxy-2-chlorotoluene, wherein the alkoxy group contains 1 to 2 carbon atoms, is prepared by reacting 5-nitro-2,4-dichlorotoluene with the desired alkali metal alcoholate in the presence of the corresponding alcohol at a temperature from 65 DEG  to 80 DEG  C., the amount of said alcoholate not exceeding 1.1 mol. per mol. of 5-nitro-2,4-dichlorotoluene.  In the preferred method, equimolecular quantities of reactants are used.  The resulting compound may be reduced to the corresponding 5-amino-4-alkoxy-2-chlorotoluene, e.g. with acetic acid and zinc. The Specification also states that 5-amino-4-methoxy-2-chlorotoluene has been prepared by acylating 2-methoxy-5-methylaniline, e.g. introducing the acetyl or oxalyl radical, chlorinating the resulting acylated compound and hydrolysis of the acylamino group in the resulting 5-acylamino - 4 - methoxy - 2 - chlorotoluene. 5-Nitro-2,4-dimethoxytoluene by heating 5-nitro-2,4-dichlorotoluene with sodium methylate in methanol at 115/120 DEG  C., the amount of alcoholate being approximately 2 mols. per mol. of dichlorotoluene. 5-Nitro-2,4-dichlorotoluene by the action of concentrated sulphuric and nitric acids on 2,4-dichlorotoluene.  5 - Nitro - 1 - chloro - 2 : 4 - dimethoxy benzene is obtained by heating 5-nitro-1,2,4-trichlorobenzene and approximately two mols. of sodium methylate in methanol.
Patent GB-533904-A (GB)
Title: Improvements in and relating to lighter-than-air craft
IPC: B64B1/58
Filed: 1939-12-14
Abstract: 533,904. Aerostats. R.F.D. CO., Ltd., and WILLIAMS, P. W. L. Dec. 14, 1939, No. 32241. [Class 4] In the construction of inflatable envelopes from a number of pieces of material for lighterthan-air craft, each piece is cut at the end which is to be joined to another piece at an angle offset from its centre line, the pieces so cut being assembled so that alternate pieces have crossseam edges of opposite angles. The nose pieces 7, middle pieces 8, and tail pieces 9 of a kite balloon are assembled in this manner, the resulting cross-seams 10, 11 being of zig-zag form. The offset angle is preferably 45 degrees.
Patent GB-290523-A (GB)
Title: Improved process for the oxidation of ethyl alcohol
IPC: C07C45/38
Filed: 1927-11-30
Abstract: 290,523. Imray, O. Y., (Goldschmidt, S.). Nov. 30, 1927. Acetaldehyde; acetic acid.-In the manufacture of acetaldehyde and acetic acid from a mixture of ethyl alcohol vapour and air or oxygen with the use of silver as a catalyst, the catalyst is maintained at a temperature of 380-440‹ C., and preferably between 400 and 420‹ C. If the heat of reaction is insufficient to maintain the desired temperature, the reagents or the catalyst may be separately heated. For example, the air or the mixture of air and alcohol vapour may be pre-heated by the heat of the reaction. Preferably, however, the temperature is adjusted by regulating the speed of the gas current or by varying the proportion of oxygen in the mixture. It is preferred to use a comparatively small or no excess of oxygen. The reaction may be performed at diminished, ordinary, or elevated pressure, and the reaction products should be rapidly cooled. In one example, air saturated with ethyl alcohol vapour is passed over or through silver wire gauze at such a speed that the temperature of the catalyst, as measured by a thermocouple, remains at 408-410‹ C. Instead of silver wire gauze, the catalyst may be silver deposited on a carrier such as asbestos. Another example describes the treatment of a mixture of air and ethyl alcohol vapour containing an amount of oxygen only 30 per cent in excess of that necessary to convert all the alcohol into acetaldehyde.
Patent GB-1007412-A (GB)
Title: Multi-deck apparatus with roller conveyors
IPC: D21F5/00
Filed: 1964-08-07
Abstract: 1,007,412. Textile treating apparatus. SVENSKA FLAKTFABRIKEN A.B. Aug. 7, 1964 [Aug. 7,1963; March 19,1964], No. 32276/64. Heading D1L. [Also in Division F4]. Apparatus for the gaseous treatment of webs of material 5 comprises a series of roller conveyers, each conveyer being formed from upper and lower rollers 3, 4 between which the web advances while a treatment medium is blown against both surfaces from apertured distribution boxes 6 mounted therebetween. The rollers 3, 4 are supported-bearings 16, 17, respectively mounted on horizontal framework beams 15a, 15b of flat iron bars and connected by inclined struts 15c, and the distribution boxes are also secured to the beams. The bearings 16 fixedly support the shafts of the lower rollers 3, and the bearings 17 on the lower beams 15b support the shafts of the upper rollers 4 of an adjacent lower conveyer series, which bearings 17 allow vertical adjustment of the rollers 4. The medium flows from fans mounted in a suction chamber, Fig. 1 (not shown) along one side of the conveyers and passes along a passage above the conveyer runs housing a heater and into a pressure chamber along the opposite longitudinal side of the treatment chamber for passage into the distribution boxes.
Patent GB-825364-A (GB)
Title: Improvements relating to anti-friction bearings
IPC: F16C33/78
Filed: 1955-11-11
Abstract: 825,364. Stuffing-box substitutes. ZILLER, H., [trading as ZILLER & CO.]. Nov. 11, 1955 [Nov. 11, 1954], No. 32379/55. Class 122 (5). [Also in Group XXXIV] A ball or roller bearing is sealed on each side by a resilient sealing ring 4 which is rigidly connected by being cemented or welded to the end face of the inner race 2 and has an inturned edge 5 which rests resiliently on the end face of the outer race 1. Alternatively, the sealing rings 4 are secured to the outer race 1 and bear against the inner race 2.
Patent GB-1267585-A (GB)
Title: Process for converting ammonium paratungstate to ammonium metatungstate
Inventor: HAY JOHN OLIVER
IPC: C01G41/00
Filed: 1969-06-26
Abstract: 1,267,585. Ammonium metatungstate. KEWANEE OIL CO. 26 June, 1969, No. 32420/69.. Heading C1A. Ammonium paratungstate is converted into ammonium metatungstate by forming an aqueous slurry of up to 22% by wt. of ammonium paratungstate calculated as WO 3 , ensuring acid conditions and a pH of at least 1À75 in the slurry by the addition of an acid or a material liberating H<SP>+</SP> ions, then heating the slurry to a temp. of 50-120‹ C. until dissolution of the paratungstate is substantially complete. The acid used may be a mineral acid, e.g. HMO 3 , H 2 SO 4  or HCl, and is preferably added as a dilute aqueous solution. The slurry may contain at least 10% by wt. of the paratungstate, preferably 12-18% by wt. of the paratungstate. The pH of the slurry may vary between 1À75, and 3À5 preferably between 1À75 and 2À2 during the process. The acid used may be an organic acid having no functional groups other than acid groups reactive with the ammonium ions of the paratungstate. The acid may be a monobasic organic acid having a dissociation constant of from M x 10<SP>-3</SP> to M x 10<SP>-5</SP>, or from M x 10-1 to M x 10<SP>-2</SP> where M has a numerical value of from 1 to 9À9. Exemplified acids are formic, acetic, lactic and glycolic acid. When formic acid is used the slurry may be heated under reflux. The temp. is preferably maintained at 70‹ to 101‹ C. until the paratungstate is completely dissolved. If desired after such dissolution the pH may be adjusted to 3À5. The solution may be evaporated if desired to crystallize the metatungstate.
Patent GB-773065-A (GB)
Title: Improvements in or relating to propellers for aircraft
IPC: B64C11/38
Filed: 1955-11-14
Abstract: 773,065. Variable-pitch propellers. HARTZELL INDUSTRIES, Inc. Nov. 14, 1955, No. 32532/55. Class 114. In an adjustable-pitch propeller in which one or more radially projecting blades are carried on a central hub and are rotatable about their axes between feathered and minimum pitch positions, the blades are continuously urged towards the feathered position by resilient means while fluid operable means are provided acting in opposition thereto to reduce the pitch of the blades. The outer end of the hub 10, to radial extensions of which the blades 24 are secured, carries a fixed cylinder 26 having its outer end closed by a member 28 formed with a sleeve 30 in which a tube 32 slides. At the inner end of the tube 32, a collar 34 engages one end of a spring 36 which abuts against the member 28 to urge the tube 32 inwards and through links 46 to increase the pitch of the blade 21. At its outer end the tube 32 carries a cylinder 40 sliding in fluid-tight manner on the cylinder 26. A pump 74, Fig. 5, supplies hydraulic liquid through the tube 32 to the cylinder 40 to decrease the blade pitch, the action being under control of a centrifugal speed governor 84 which actuates a control valve 78 in a cylinder 70. When it is desired to feather the blades with the propeller turning at speed, a manually operated cam 86 is turned to raise the valve 78 against the governor action and open the tube 32 to an exhaust passage 80 whereby the cylinder 40 empties quickly as the spring 36 turns the blades to the full feathered position. In this, the spring is assisted by counterweights 52 mounted on the member 22 which clamps the blade 24 to the hub 10. When the propeller slows down normally, movement to the feathering position is prevented by a spring-pressed plunger 56 normally held by centrifugal force out of notches or apertures in a plate 54 secured to the clamping member 22 but engaging therein to stop blade turning when the speed falls to 500-1000 R.P.M.
Patent GB-366099-A (GB)
Title: Improvements in or relating to punching or drifting machines
IPC: B21K5/06
Filed: 1930-10-29
Abstract: 366,099. Forging rock-drills. RULE, J., 54, Hughville Street, and HOLMAN BROS., Ltd., both in Camborne, Cornwall. Oct. 29, 1930, Nos. 32550/30 and 11772/31. [Class 83 (iv).] Perforating by forging.-In a fluid-operated punch for drifting the ends of rock drills with a hammer piston 7 working within a cylinder C, fluid-operated means is provided on the front of the cylinder for releasing the tool. The tool 3 is secured to an anvil 2 by a pin 11 held by a spring 12. Freely movable within the cylinder and surrounding the anvil are sleeves 4, 5 shaped as shown. On the forward stroke pressure in a cushion space 14 holds the parts 2, 4, 5 in the relative positions shown in Fig. 1 and blows from the hammer 7 operate the tool 3. To release the tool 3 from the drill 13 the machine is pulled back and the parts 2, 4, 5 assume the position shown in Fig. 2 (not shown). Blows from the hammer, through sleeves 4, 5, cause pressure pulsations in the cushion space 14 which, through an internal projection on the sleeve 4 and a collar 8 on the anvil, release the tool. A collar 10 on the anvil 2 forms a forward stop for the anvil.
Patent GB-296927-A (GB)
Title: Improvements in or relating to tobacco and like jars
IPC: B65D45/16
Filed: 1927-12-03
Abstract: 296,927. Colledge, A. H., and Bourne & Son, Ltd., J. Dec. 3, 1927. Stoppers, retaining-devices for.-The lid of a tobacco or like jar is provided with an operating knob 10, Fig. 3, attached to a spindle passing through a hole in the lid, the lower end of the spindle being threaded to receive a diametral or radial arm or arms 6, suitable washers 11 or other means being provided to prevent removal of the arm therefrom. Between the arm and the cover a spring 12 is interposed, bearin against a washer 13 surmounted by an indiarubber disc 14 The lid, which has an indiarubber edging adapted to contact with the container, is placed thereon with the arm 6 passing through gaps 3 in the flange 2, Fig. 2; on turning the operating knob the arm is first swung aside against a stop 5 and thereafter upon continued turning is raised on the threaded stem to bear against the underside of the flange and hold the lid tightly in place. Reverse movement of the knob ultimately releases the arm from the flange and causes it to turn against the other stop 4 in position for removal of the lid.
Patent GB-1308178-A (GB)
Title: Method of producing aromatic carboxylic acids from alkylbenzenes
IPC: C07C51/265
Filed: 1970-07-06
Abstract: 1308178 Aromatic carboxylic acids SOC ITALIANA RESINE SpA 6 July 1970 [7 July 1969] 32723/70 Heading C2C In a process for the continuous production of aromatic carboxylic acids by the oxidation in the liquid phase of alkyl benzenes in an aliphatic carboxylic acid environment and in the presence of cobalt or manganese salts, the alkyl benzene hydrocarbon aliphatic carboxylic acid and catalytic salts are fed, along with an activator selected from bromides and chlorides of chloracetic acid and bromacetic acids, to the top of an elongated tubular reaction vessel, the content of bromine and chorine lying within the range 1 x 10<SP>-3</SP> to 100 + 10<SP>-3</SP> gram-atoms of halogen per mol. of the hydrocarbon being subjected to oxidation, air is fed to the base of the reaction vessel at a rate such as to ensure that oxygen is not in excess of 50% of the amount required theoretically for oxidation, the remainder of the oxidizing gas is fed, in the form of oxygen or a gas containing more than 90% of molecular oxygen, to at least one point along the body of the reaction vessel, oxidation is carried out at temperatures of 150‹ to 220‹ C. and pressures of up to 30 atmospheres, the reaction products are collected from the base of the reaction vessel and the aromatic carboxylic acids are separated. In an example p-xylene is oxidized to terephthalic acid in the presence of acetic acid, manganous and cobalt acetates, dichloroacetic acid chloride and monobromoacetic acid bromide. A tubular reactor is used, air being fed to the base and commercial oxygen being fed in at two points situated about one third and two thirds of the way up the vessel.
Patent GB-175094-A (GB)
Title: Improvements in presses for moulding plastic or semi-plastic substances
IPC: B28B1/44
Filed: 1920-11-20
Abstract: 175,094. Taylor, Tunnicliff, & Co., Ltd., and Cooper, P. Nov. 20, 1920. Presses; moulds; pressing plungers and dies.-Pierced articles, for example, insulating-beads, are formed from plastic, semiplastic, or powdered substances by moulding in dies in a press, the die in which the mould recesses are formed being detachable from its support. In the construction shown in Fig. 1, the material is pressed into mould recesses 2, in the lower die 1 by an upper die 7 carried by a member 11, and the articles are pierced by pins 16, which pass through the member 11 and are carried by a plate 13 secured to the press plunger 14. The facilitate removal of the articles. In the modimember 11 is movable relatively to the plate 13 fied construction shown in Fig. 5, the articles are under the control of sliding guide-rods 12 and moulded in the upper die 7 by the lower die 1 ccmpression springs 15, the articles being and are pierced by pins 16. After completion of moulded by the first movement of the plunger the moulding and piercing, hooks 20 are moved and pierced by subsequent movement thereof. aside from pins 21 and the upper die is removed. After withdrawal of the pins 16 and the upper Hooks similar to the hooks 20 may be employed die, the die 1 is removed from its support 9, and to hold the lower die in position when it is may be subjected to heat or other treatment to detachable. Specification 113,233 is referred to.
Patent GB-1469420-A (GB)
Title: Electrical connections
IPC: H01R4/62
Filed: 1975-07-02
Abstract: 1469420 Electrical connections DAVID GRIFFIN Ltd 2 July 1975 [25 July 1974] 32833/74 Heading H2E An electrical connection is made between a conductor 4 and a non-metallic conductive material 5 (e.g. a heating panel of a conductive non-woven fabric) by bonding the two together with a thermoplastic material 3 under the application of heat and pressure. As shown a strip of the thermoplastic material (e.g. P.V.C. or polyurethane) may be placed over the conductor 4 and bonded to the material 5 by platens at 200‹ C. and 100 p.s.i. Alternatively, Figs. 2 and 3 (not shown), the conductor is provided with a thermoplastic sheath the assembly of which is bonded to the conductive material, the heat and pressure causing the conductor to be pressed into good electrical contact with the material.
Patent GB-299217-A (GB)
Title: Improved gas burner with tangential supply nozzles
IPC: F23D14/20
Filed: 1927-12-05
Abstract: 299,217. Bansen, H. Dec. 5, 1927. Atmospheric gas burners. - In a burner in which the gas or air is supplied by tangential nozzles into a mixing and combustion chamber, the nozzle or groups of the nozzles extend to different depths into the chamber so as to form a number of spiral flames of different diameter. In one form, gas is supplied from an inlet b, Fig. 2, through groups of nozzles e, f, g into a chamber h and air enters through an annular inlet i. The ends of the nozzles may be bent laterally to displace the outflow openings. In a second form, a casing k, Fig. 4, is arranged centrally of the nozzles and provided with a slot m opposite each nozzle, so that, for example, air is drawn from the space n through the slots by means of gas supplied by the nozzles.