baber/WOPTO huggingface dataset:
Patent GB-333267-A (GB)
Title: Improvements in or relating to sliding clasp fastenings
Inventor: CRAWFORD CHARLES JOHN
IPC: A44B19/14
Filed: 1929-04-08
Abstract: 333,267. Powell, T. B., and Crawford, C. J. April 8, 1929. Fastening strips and tabs.-Sliding-clasp fastenings have interpenetrating interlocking pieces engaged by successive rotations about axes parallel to the line. The pieces are first rotated in one direction and then in the opposite direction by a slider 5, Fig. 3, having a cam surface 7 to present the converging rows obliquely to each other, the slider being actuated by a grip 10. The pieces are defected downwards by cams 9 before reaching cam 7. The slider may have continuous or interrupted grooves engaging ribs or bars formed on or secured to the strips. The bars may be secured by a central row of stitches to enable the slider to engage behind the bars. The slider may be formed of two parts 21, 22, Fig. 13, the part 21 having a base 24 engaging a channel 23 in the part 22. The strips may be formed by stamping out leather, fabric, rubber &c. and the projections may be tipped with metallic edgings or margins. Two strips may be cut from one piece, or separate strips united by a two-partbuckle 28. Two forms of teeth are shown in Fig. 1 and 8.
Patent GB-253083-A (GB)
Title: Improvements in belt tensioning devices
IPC: F16H7/08
Filed: 1926-04-24
Abstract: 253,083. M³hlschlegel, K. June 2, 1925, [Convention date]. Tension arrangements for use with belt gearin which the pulleys are interchangeable, the device being movable as a unit to position the tension pulley always adjacent to the smaller pulley. The pulley f is carried on an arm g formed on a disc h which rotates loosely on the sleeve of a drum i. Springs q bear upon pins p carried m the drum and engage also with forks r secured in the disc h so as to maintain them normally in register with the pins. The drum i may be maintained, by a pin m engaging the framing n adjacent to one pulley d and by a nut s, in such a position as to press the pulley f against the belt e, or may be removed and placed similarly with relation to the pulley c, the springs allowing the pressure to be applied in either direction.
Patent GB-396724-A (GB)
Title: Improvements relating to the manufacture of ethyl alcohol
IPC: C07C29/04
Filed: 1932-01-29
Abstract: Ethyl alcohol is produced by passing a mixture of ethylene and steam over a catalyst comprising phosphoric acid and boron oxide, the amount of phosphoric acid present being at least 10 per cent more than that corresponding with the orthophosphate but not more than 95 per cent of the catalyst.  The catalyst may be used in granules or tablets, and may be supported upon or mixed with inert but not siliceous carriers, which may be impregnated with the catalyst in liquid form and used with or without drying.  If the catalyst is liquid under the conditions of operation, the reaction mixture may be passed through the catalyst.  The process may be effected at 100-300 DEG  C. and at atmospheric pressure or pressures up to 250 atmospheres.  Examples describe the use of a catalyst made by evaporating a mixture of 1 mol. boric anhydride, with 2,2 mols. phosphoric acid and heating at 200 DEG  C.  Specification 378,865 is referred to.
Patent GB-974637-A (GB)
Title: A device for producing underwater explosions
IPC: F42C5/00
Filed: 1962-03-21
Abstract: 974,637. Depth charges. J. MENA Y VIEYRA DE ABREU. March 21, 1962 [March 25, 1961], No. 10830/62. Heading F3A. [Also in Division B7] A detonating fuze, which may be used to fire depth charges and marine mines, comprises a head member 10 from which depend coaxial tubes 19, 25, the inner tube housing firing and safety means and the annular space between the tubes forming an expansion chamber which is sealed by a membrane 21 placed between two washers, the washers and membrane being held in position by a cylindrical cover 27 screwed on to the outer tube 25. Within the tube 19 is a piston 12 carrying a detonator 20, which is aligned with a firing pin 22 axially placed in a booster charge 24. The piston is immobilized by a spring-supported member 16 which prevents movement of balls 14 housed in the piston wall and engaging a shoulder 15 of the inner surface of tube 19. During transport and storage, the member 16 is secured by a safetypin 7 extending through openings 4, 6 and 13. This pin is curved at one end 9 and has a latch 8 at the other end to secure it in position. To withdraw the pin, a cover 1 is unscrewed and the latch 8 rotated to lie within the profile of the pin. With the pin withdrawn, the fuze is ready for use and may be screwed into the body of a mine by means of threading 28. When the mine is laid, water enters through an opening 3 and as the hydrostatic pressure increases the member 16 is depressed against the thrust of spring 17. At a given depth the balls 14 escape and the piston 12 is freed. Piston 12 is then driven against the membrane 21 and, after puncturing the membrane, hits the pin 22 which set off the detonator 20. The depth at which the fuze operates is controlled by the choice of spring 17 and a vent 29 allowing passage of air between the interior of the piston 12 and the annular chamber 25. The membrane 21 may be of tinfoil and the spring 17 may be regulated by the insertion of one or more discs within the piston 12.
Patent GB-1308543-A (GB)
Title: Rotary mechanism operable as a pump a motor or a combustion engine
IPC: F04C18/10
Filed: 1970-03-06
Abstract: 1308543 Rotary machines J W TYREE 6 March 1970 [10 March 1969] 10902/70 Heading F1F A rotary machine operable as a pump, motor or combustion engine comprises an outer component or housing having a multi-lobed inner periphery of hypocycloid configuration, Fig. 3, consisting of two halves 10a, 10b, Fig. 4, or a peripheral shell 10, Fig. 8, closed by end-plates, shown dotted, and a preferably fixed pintle 14 having passages 18, 20 from either end and formed with an eccentric portion 16 on which an inner component or rotor 26 having one less lobe than the outer component is rotatably mounted. The inner and outer components are coupled together to rotate in the same direction at different speeds. The passage 18 communicates via an opening 22 in the eccentric portion with parts 28, 30 in the rotor and the passage 20 via opening 24 with parts 32, 34. Operating as an IC engine fuel/air mixture is drawn in through passage 20, compressed by relative rotation of the two components, transferred through a passage 25 in the eccentric and pintle and ignited by a spark-plug 36. The expanding gases of combustion then rotate the components and exhaust through the passage 18. Instead of a charge of fuel and air, air only may be drawn into the passage 20 and the spark-plug replaced by a fuelinjector through which the fuel is injected. The engine may be operated from an external source of power such as compressed air, steam or hydraulic fluid by a simple modification of the porting. The machine alternatively may be driven to operate as a pump. Fig. 14 (not shown) illustrates a modified engine having a cylindrical stator and rotor, with radial sealing fins on the rotor.
Patent GB-237366-A (GB)
Title: Apparatus for delivering articles such as balls of dough at regular intervals
IPC: A21B5/00
Filed: 1924-05-03
Abstract: 237,366. Melvin & Sons, Ltd., T., and Paterson, J. C. May 3, 1924. Rolling-machines.-An endless conveyer A<1> for dough lumps comprising a receiving portion which is substantially horizontal, and a delivery portion inclined at an angle greater than the angle of repose, whereby the dough portions remain at the angLe until they are picked up with fingers C associated with the belt, may be associated with a balling-conveyer. The conveyer A' comprises sprocket chains connected by transverse slats A covered with felt, and the chains are trained over rollers A<3>, A<5> to produce the re-entrant angle contour. The dough lumps fall from a hopper C<1> and are prevented from dropping on the fingers C by a pivoted flap C<2> operated by the fingers.
Patent GB-454941-A (GB)
Title: Improvements in water-heating apparatus
IPC: F24H1/12
Filed: 1935-04-09
Abstract: 454,941. Water heaters. DARBY, H. G., 39, Broad Street, Birmingham. April 9, 1935, No. 10923. [Class 64 (i)] [See also Group XI] A water heater comprises a vessel with a tapering vertical flue having its smaller end at the top and receiving a heating unit 5 at the lower end, a sleeve 10 in the lower part of the flue to prevent condensation fitting closely with pockets 11 between the flue wall and the sleeve, and a baffle unit comprising a central member 13 in the upper part of the flue for preventing flow of gases in the centre and ribs 14 between the central member and the flue allowing passage of gas. The pockets 11 are formed by indentations in the flue wall or the sleeve or both. A deflecting ring 8 at the base of the flue guides entering air to the centre, and a baffle ring 12 in the flue prevents down draught of. gases. Radial fins 14 formed by angle section plates or by bending blanks of metal into zigzag form, are attached to the flue wall, or preferably to the central hollow member 13 with closed ends. The sleeve and baffle may be withdrawn as a unit. A thermostat 4 is placed in the water inlet 3, hot water being withdrawn at 9.
Patent GB-109404-A (GB)
IPC: B60B35/02
Abstract: 109,404. Krussand, D., and Steen, A. March 21, 1917. Vehicle-axle bearings.-The hub of a vehicle wheel is closed at its outer end 3 and is held on the axle by a collar 6 made in two or more parts provided with flanges 8, 9 to engage grooves 10, 11 in the axle. The collar is held against a shoulder in the hub by a screwed ring 12 locked by a spring catch 16. A chamber 5 in the end of the hub receives oil through an opening fitted with a non- return valve 4. A packing-ring 14 and a dustcollecting groove 18 prevent dust from gaining access to the bearing.
Patent GB-294289-A (GB)
Title: Improvements in or relating to drying
IPC: F26B17/10
Filed: 1927-04-23
Abstract: 294,289. Soderlund, O., Gram, T., and Techno-Chemical Laboratories, Ltd. April 23, 1927. Gaseous currents, materials carried by.-The heat of the vapourladen gaseous medium from one stage of a drying operation is recovered bv direct contact with a liquid which is used to heat the material in another stage. Peat &c. fed through a hopper i<2> is entrained in a current of air generated by a fan i and forced through the tubes e<1> of a low-temperature drier e, the tube e<3>, and the tubes cl of a higher temperature drier c to a cyclone separator g from which the material is discharged at an outlet g', while the vapour-laden air passes into the heat-exchanger d in which it contacts directly with water distributed by a perforate tray d<2> and circulated between the drier e and the heat exchanger by a pump k. The drier c is heated by water which is circulated through the heat exchanger b and the drier by a pump j, the water being heated by the vapour-laden air from a steam-heated drier a through which the material discharged from the cyclone g and fed into the hopper a<2> is conveyed by a current of air which is circulated by a fan h between the drier and the heat exchanger b. Specification 251,344, [Class 64 (i), Heating liquids &c.], is referred to.
Patent GB-142296-A (GB)
Title: Improvements in and relating to dies and like tools for riveting, caulking, stamping and other purposes
IPC: B21J15/36
Filed: 1919-05-02
Abstract: 142,296. Hall, J. W. M., and Speers, S. K. May 2, 1919. Forging-dies; caulking; riveting. - To prevent the shanks 2 of riveting, caulking, stamping, and like dies from breaking off, an annular groove 1 is formed in the die head 3 around the shank 2. The flat surface 4 left outside the groove may rest directly on the end 7 of the socket, or a leather or like washer 9 and retaining-cup 10 may be interposed. In another modification, a shoulder or step 11, Fig. 5, is formed round the base of the head, and a binding-band 12 forced thereon so that it rests on the socket.
Patent GB-475350-A (GB)
Title: Improvements in the manufacture of artificial threads, fibres and like materials from cellulose solutions
IPC: D01D10/04
Filed: 1936-04-16
Abstract: In manufacturing artificial threads, fibres, and like materials from cellulose solutions, e.g. viscose, the freshly spun material is laid continuously on a flat support, rotating about a vertical or slightly inclined axis, in a form which substantially fills the surface of the support, e.g. in a zigzag form, is subjected on the support to after-treatment and is then continuously removed before it can form a <PICT:0475350/IV/1> <PICT:0475350/IV/2> second layer.  Threads are laid in the annular space between rims a and b on a plate C slowly rotating, e.g. once per minute, on a shaft C<1>.  Treatment liquid is supplied by sprinklers D and flows away through perforations c, d, to a receiver F or suction device G, a separate one of which is provided for each liquid. The threads are pressed by rollers W irrigated by sprinklers to prevent sticking of the threads thereto.  For treatments with gases or vapours a housing H is provided for the apparatus with inlet K and outer J.  A series of plates may be provided the thread being led from one to another and subjected to successive treatments thereon.  The hollow space on the plate may serve as a bath through which liquid flows continuously or to which chemical is added as it is used up.  Cut fibres may be laid on the plate by a depositing device, treated, and removed by a lifting device.
Patent GB-1326457-A (GB)
Title: Method and apparatus for dissolving gas in and stripping gas from water
IPC: C02F3/20
Filed: 1971-04-23
Abstract: 1326457 Dispersing gases in liquids R E SPEECE 23 April 1971 [29 April 1970] 11058/ 71 Heading B1C Gas such as air or oxygen is dissolved in and gas such as nitrogen is stripped from a body of water by inducing a downflowing stream of the water in the body of the water and injecting bubbles of the first said gas into the upstream end of the stream which has at that point a velocity greater than the buoyant velocity of the bubbles and confining the stream of water and gas bubbles in a downwardly extending flow path having a progressively increasing transverse cross-sectional area whereby the bubbles have prolonged contact with the water. The stream of water is induced by an impeller 20 to flow through an intake tube 14 leading to an inverted funnel 16, and the treating gas is introduced from a source 30 under static pressure through a bubble dispersed 34. In a modification, Fig. 2 (not shown), the downflowing stream is induced by a hydrostatic head of water. A plurality of apparatuses may be used in one body of water. The apparatus may be placed at the water intake from a lake, or it may be used to aerate the stratified cold layer at the bottom of an impoundment of water used for the generation of hydroelectric power, or to aerate water having a microbial activity, e.g. activated sludge waste water treatment and yeast fermentation.
Patent GB-331875-A (GB)
Title: Improvements in and relating to fluid pressure braking apparatus
IPC: B60T15/30
Filed: 1929-04-10
Abstract: 331,875. Farmer, C. C., and Westing- house Brake & Saxby Signal Co., Ltd. April 10, 1929. Fluid-pressure. - In fluid-pressure braking apparatus fluid is vented from the train-pipe, in applying the brakes, through a cavity in the main slide valve of a triple valve to a chamber, and is vented from the chamber after a brake application through this cavity and a restricted passage to the brake cylinder. On brake application the triple valve piston 2 moves the slide valve 10 so as to connect by means of a cavity 11, ports 12, 13, which allow fluid to vent from the train-pipe 5 to the accelerating chamber 16. When the brakes are released the slide valves move back so that the chamber 16 is connected through the cavity 11, a restricted passage 17, a cavity 18 and a passage 21 to the brake cylinder, which is connected to exhaust through a cavity 26 in the slide valve and an exhaust port 27. The brake cylinder is supplied on brake application by a graduating valve 8 and a passage 22 in the main slide valve.
Patent GB-217004-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M6/06
Filed: 1923-04-24
Abstract: 217,004. Pepper, D. April 24, 1923. Electrodes; electrolytes; supports for electrodes.-A battery particularly suitable for a flash lamp comprises a leaden or lead-antimony cell A, coated first with electrodeposited lead peroxide and then with a layer of the same substance applied mechanically, and a zinc electrode D in the form of an inverted cup, spaced.from the cell A by a seal J of non- permeable non-conducting material such as asphalte. The second layer of lead peroxide may be mixed with a binder and applied to the cell. A porous layer C separates the electrodes. As electrolyte there may be used dilute sulphuric acid or bisulphate of sodium or potassium, in liquid, jelly, or paste form. The zinc cup D is amalgamated when peroxide of lead is used. It may be coated on its non-active surfaces with layers F<1>, F<2> of asphalte or the like. A washer I is inserted before formation of the seal J. The cell bottom may be provided with internal ribs, or may be plain. In a modification the zine cup is perforated, and is in contact internally and externally with layers of paper thinly coated with zinc amalgam. A helical spring of stiff paper presses the inner layer of paper against the zinc. The top of the zinc cup has strengthening ribs radiating from a hollow boss which is fitted with a screw plug and serves for the introduction of the electrolyte. The asphalte plug extends over the whole end of the zinc cup.
Patent GB-409505-A (GB)
Title: Improvements in free-wheel devices
Filed: 1933-04-13
Abstract: 409,505. Freewheel clutches. MOREAU, P., 22, Rue d'Orleans, Neuilly-sur- Seine, France. April 13, 1933, No. 11146. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 19, 1933.] [Class 80 (ii).] Freewheel mechanism comprises a screw 42, Fig. 7, which is formed on the driving shaft 40 and which co-operates with a nut 45 having projections 46 engaging bayonet slots 51 in the hollow driven member 44. The nut carries blade springs 47 in frictional contact with a flange 48 on the shaft 40. In the over-running position, the projections 46 are positioned as shown, so maintaining the nut out of engagement with the screw. During drive, the drag on the springs 47 causes the nut to turn so that its projections come opposite the axial part 51<1> of the slots 51, and a spring 49 moves the nut into engagement, the drive being transmitted solely through the threads. A spring 53 assists the reverse movement of the nut. In a modification, the shaft 40 is constituted by an extension of the input pinion of a motor-vehicle gear-box, the sleeve 44 carrying the driven disc of the engine clutch, and a dog clutch member is provided for positively connecting the shaft 40 and sleeve 44 when bidirectional drive is required. In another form, the driving member comprises a pinion with internal helical teeth co-operating with external teeth on an axiallymovable member, which latter has internal projections engaging bayonet slots in a driven shaft and has a cylindrical part embraced by spring-loaded brake shoes carried by the pinion. The Specification, as open to inspection under Sect. 91, includes also a construction comprising a screw 15, Fig. 1 (Cancelled), formed on the driving shaft 1 and a nut 6 splined in a casing 3 secured to the driven shaft 2. A ring 10, having a one-way connection with the shaft 1 through the medium of wedging rollers, carries pins 11 passing through inclined slots 22 in a sleeve 9 splined in a part 20 of the casing and through circumferential slots 21 in the part 20. A spring 8 is arranged between the nut 6 and the sleeve 20, and the nut is urged towards the sleeve by springs 7. During drive, the ring 10 turns with the shaft 1, the pins 11 cause the sleeve 20 to move towards the nut, and, through the spring 20, the nut is thus brought into engagement with the screw. Finally, the nut abuts against the wall of the casing. Bidirectional drive may be obtained by means of a dog clutch member 4 splined on the shaft 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-237559-A (GB)
Title: Improvements in or relating to lubrication
IPC: F16N39/06
Filed: 1925-04-29
Abstract: 237,559. Renault, L. July 22, 1924, [Convention date]. Cooling lubricant; force-feed lubricating. - Oil draining into a chamber 2 in the crank case of an engine is delivered by a pump 6 through a centrifugal purifier 15 and a cooler into a chamber 3 separated from the chamber 2 by a partition 1', whence a pump 8 delivers it to the parts to be lubricated through a pipe 14. The output of the pump 6 is greater than that of the pump 8, and the surplus oil delivered to the chamber 3 returns to the chamber 2 through a communicating passage 4<1>. The purifier 15 may be arranged to act as a pump, in which case the pump 6 is omitted.
Patent GB-307038-A (GB)
Title: Improvements relating to blank-holder cushioning devices in presses for drawing metal plates or sheets
IPC: B21D24/08
Filed: 1928-04-16
Abstract: 307,038. Schuler Akt.-Ges., L. March 2, 1928. [Convention date]. Addition to 297,355. Piston-packing substitutes. -The piston 1 of a pneumatic device for supporting a drawring or blank holder in a sheet metal drawing-press is packed by leathers 9 and an intermediate liquid seal exposed at 11 to the pressure of the air in the cylinder 2.
Patent GB-509812-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F29/02
Filed: 1938-04-12
Abstract: 509,812. Transformers. BRITISH THOMSONHOUSTON CO., Ltd. April 12, 1938, No. 11224. Convention date, April 15, 1937. [Class 38 (ii)] In a regulating transformer provided with a main winding 1 which co-operates, through a change-over switch 5, with a regulating coil 2 which can be operated as a series buck or boost connection and is temporarily separated from the main winding during the change over, the regulating coil 2 is provided with a potential surround 6 which is maintained at substantially the potential of the point of the main winding to which the regulating coil is connected. As shown in Fig. 1 the regulating coil 2 is formed as a single layer coil of several conductors arranged as a multiple-helix over a core, the ends of the coil being respectively connected to the contacts 3, 4 of a change-over switch, the movable contact 5 of which is connected to one end of the main winding 1. The potential surround 6 consists of a metal screen which is preferably slit longitudinally and connected by a conductor 7 to one end of the main winding 1. In a modification, part of the main winding is used as a potential surround at both sides of the regulating coil, and the contact arm of the change-over switch is connected to one end of the regulating coil and co-operates with contacts respectively connected to the end of the main winding and to a tapping on the winding, whereby the regulating coil can be connected either in series with the main winding or in parallel with the portion up to the tapping. Fig. 3 shows a further modification, wherein the regulating coil 2 comprises a normally wound tapped cylindrical coil, and the potential surround is formed on one side by a part 8 of the main winding 1 and on the other side by a balancing winding 9 of several parallel connected coils connected to the lower end of the part 8 by a conductor 10. A slit metal cylinder may be used instead of the balancing winding 9.