baber/WOPTO huggingface dataset:
Patent GB-599007-A (GB)
Title: Improvements in or relating to temperature-responsive control apparatus, and refrigeration systems including such temperature-responsive control apparatus
IPC: F25B15/02
Filed: 1943-11-05
Abstract: 599,007. Refrigerating. GIBSON ELECTRIC REFRIGERATOR CORPORATION. Nov. 5, 1943, No. 18404. Convention date, Sept. 28, 1939. [Class 29] Absorption systems.-In a system in which the generator 10 is heated continuously and replenished intermittently with strong liquor from the absorber 25 by the action of a valve 36 providing communication between a transfer chamber 35 and a pressure chamber 37, the valve is controlled by a thermal element 54 in the generator, this element being surrounded by a jacket 47 through which cool strong liquor flows from the absorber to an analyser 13 above the generator, so that the element cools rapidly and causes a reverse movement of the valve to ensue quickly. The medium in the element is preferably a mixture of refrigerant and absorbent typically ammonia and water, of a concentration about that of the solution in the still at the time replenishment is desired. The refrigerant vapour from the generator rises to a rectifier 17 and flows down to a condenser 19 whence condensate is forced upwards to a receiver 21 having a float controlled or other valve 23 leading to the evaporator 22. The vapour from the evaporator passes through a coil 29 in the pressure vessel and thence by a pipe 30 to a riser conduit 28 in a liquor circuit 25, 28 from the absorber. The riser pipe has an outlet branch 28a into a jacket 38 connected to the pressure vessel by a pipe 39 and non return valve 40. The weak liquor from the generator flows through a pipe 33 and float valve 32 to the absorber, a fine stream being bled through a passage 49 into the pressure vessel. In one setting of the valve communication is provided from the pressure vessel at absorber pressure through conduit 41 to the transfer vessel, from which vapour is vented back through pipes 43, 44 to the pressure vessel. When the generator temperature rises sufficiently the thermal medium transmits pressure to the valve rod through a bellows 51 to shift the valve and provide communication between a branch conduit 45 at high pressure and the pipe 43, while a pipe 42 from the bottom of the transfer vessel is connected with a pipe 46 to permit flow of liquor from the transfer vessel back to the generator by way of the jacket 47 around the thermal element. As soon as the valve is again reversed the high pressure vapour flows through pipes 43, 44 to chamber 37, is cooled by coil 29 and absorbed by the liquor bleeding through the passage 49, whereupon the pressures in vessels 37, 35 momentarily drop below absorber pressure and liquor flows from absorber vessel to refill the transfer vessel, after which the bleeding of liquor through passage 49 raises the pressures again.
Patent GB-918624-A (GB)
Title: Improvements in automatic gas lighters
IPC: F23Q2/16
Filed: 1959-05-29
Abstract: 918,624. Cigarette lighters using liquefied gas. FLAMINAIRE M. QUERCIA. May 29, 1959 [June 3, 1958; May 4, 1959], No. 18448/59. Class 75 (3). A liquefied gas reservoir 2 is removably secured to a lighter and is provided with an outlet valve 5 actuated by a control-rod 4 adapted to be pushed in to open the valve by a rivet head 24 on a resilient lever 22 fixed at one end 23 to the lighter body, and a gas-tight connection between the outlet orifice of the valve and a tube 17 leading to the burner is provided by a bell-shaped connecting-piece 18 made of resilient material which is tightly pressed against the reservoir 2 when the valve is opened. The bell-shaped connecting-piece is secured to the resilient lever 22 by the rivet 24. The resilient lever 22 is moved to open the valve by a push-member 19 pivoted at 20 to an operating lever 6 and provided with a thickened end 21 which is pushed between the lighter body and the resilient lever 22. The push-member 19 and the resilient lever 22 are guided by lugs 25, 26 on the lighter body. The operating lever 6 is connected by a ratchet-wheel to a sparkwheel which co-operates with a spring-urged flint to form a jet of sparks which extends in the same direction as the stream of gas from the burner and passes through an aperture in an external casing (not shown). The burner is nearer to the outlet aperture than is the flint. The gas reservoir may be of circular oval or polygonal shape. In the lighter shown in Fig. 3 the control-rod 4a of the outlet valve of the gas reservoir 2a is adapted to be pushed downwardly to open the valve by a support 35 pivoted at 30 to the lighter body, and a rubber sleeve 18o connects the valve outlet to conduits 36, 37 leading to the burner 7a. Either the top edge of the sleeve 18a is connected to the support 35 or its other edge is connected to a flange 42 on the valve. The operating lever 6a is rigidly secured to a lever 32 pivoted at one end to an eccentric 33 for driving a ratchet-wheel and a spark-wheel 14 and at its other end to a link 34 pivoted to the support 35. A spring 50 acts between the support 35 and the lever 32 and a weaker spring 31 acts between the support 35 and the gas reservoir 2a. When the operating lever 6a is depressed the support 35 first moves downwardly to open the gas valve and further movement of the lever 6a then operates the sparkwheel and withdraws a resilient plate 52 covering a gas outlet aperture 53 in the lighter casing. The flow of gas can be throttled by a member 38 adapted to be screwed into a blind hole in the support 35 to compress a resilient washer 44. A milled edge on the member 38 projects through slots in the lighter body. The bottom of the blind hole is concave and the gas conduit 36 opens axially into the hole whereas the other gas conduit 37 opens into the hole near the periphery thereof. Specification 918,625 is referred to.
Patent GB-803890-A (GB)
Title: Improvements in or relating to lightning arresters comprising a gas discharge tube
IPC: H01J17/00
Filed: 1956-06-14
Abstract: 803,890. Cold-cathode tubes. TELEFONAKTIEBOLAGET, L. M. ERICSSON. June 14, 1956 [June 14, 1955], No. 18476/56. Class 39(1). A gas discharge tube, intended for use as a lightning or surge voltage arrestor, comprises two electrodes 1 and 2, arranged to form a discharge path, and a bridge 6 extending along the length of the path and spaced from the electrodes 1 and 2 for reducing the ignition delay of the tube. The bridge is made of a composition including an electrically conductive material, such as aluminium, tantalum, titanium or zirconium in powder form, and a binder such as sodium or potassium silicate, which forms a thin insulating layer on the surface of each of the metal grains by a chemical reaction. The material used for the bridge should have a non-linear voltage/current characteristic. When a surge voltage with a steep front appears, there will be a great number of very small discharges between the metal grains in the bridge, so that ionization is produced simultaneously at all points in the discharge path, thereby reducing the ignition delay. A small quantity of radium may be added to the electrode material for the same purpose.
Patent GB-270527-A (GB)
Title: Highway attachment for railway car wheels
IPC: B60F1/02
Filed: 1926-07-26
Abstract: 270,527. Thomson, S. G. July 26, 1926. Locking nuts. - In a road and rail wheel fitment, the boss 132 of the road wheel is fitted with a pin 136 which can be withdrawn against the pressure of a spring 138 to enable the road wheel to be passed over the threaded boss 133 of the rail wheel C. When the pin is released to enter the thread, the wheel H is turned and locked by the engagement of the pin in one of a series of holes 139. The pin may be fitted with a roller 140, Fig. 27<a>. In a modification of this arrangement of quick-release screw device, the spring-pressed latch pin 136 is replaced by one or more set screws threaded through the boss of the road wheel.
Patent GB-717505-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: B30B15/24
Filed: 1951-08-08
Abstract: 717,505. Hydraulic presses. SIEMPELKAMP, E. Aug. 8, 1951, No. 18658/51. Class 69 (2) A hydraulic press comprises a fixed platen and a movable platen operated by a plurality of hydraulic rams 1', 2<SP>1</SP> ... 7<SP>1</SP>, 8<SP>1</SP>, operating in cylinders 1, 2 ... 7, 8, connected in pairs to separate pumps 10, 11, 12, 13 each of which is separately regulated by control means maintaining a fixed inclination of the movable platen to the fixed platen, which means control electric motors which drive the pumps. The control means comprise vertical rods 18, 18<SP>1</SP> secured to the movable platen which detect deviation about the longitudinal axis and a further vertical rod 14 which detects deviation about the transverse axis. The rods carry contacts which on tilting contact stationary contacts to stop the motor driving the pump or pumps causing the tilting.
Patent GB-203122-A (GB)
Title: Method of and apparatus for drying materials
IPC: D06F34/26
Filed: 1922-07-07
Abstract: 203,122. Johns-Manville, Inc., and Walsh, J. H. July 7, 1922. Drying materials in long lengths. -Cloth, textile fibre, or other material which can be handled in sheet or stream form is dried by successive jets of hot air directed transversely against the material in a heat-insulated chamber, the same air being circulated repeatedly through the drying chamber, a condenser, and a heater. The walls comprise uprights 20 supporting inner and outer sheathing 21, 22 of asbestos wood, &c. and a packing 23 of asbestos paper, &c., with additional packing 24 if desired. Fabric is passed through the chamber over rollers 1 to 10; in another form, a series of endless carrier belts is provided for the passage of a stream of bulk material. Air circulated by a blower 63 passes into a chamber 30 formed by a partition 31 within the drying chamber, through a number of jet tubes 35 arranged transversely to the material, through the drying chamber, over the top of a partition 42 into a condenser chamber 48, and through a heater 61. The jet tubes 35 may be made of fibre or of asbestos wood, are conical and are provided with a tapered slot 37, Fig. 5, or a series of slots 37<a>, Fig. 6, wider towards the wider end of the tube so that the blast is delivered with uniform intensity from all parts of the tube. The small ends of the tubes may be open, or closed by sockets in the partition 42. The condenser may comprise pipe coils 50 delivering hot water to the wet room or to a boiler feed, and collecting troughs for condensed mois. ture or solvent. The heater comprises separate steam coils 64, 65, 66 with hand-valves and a valve 78 controlled by a thermostat 80 for regulating the temperature of the air. Part of the circulating air may be, renewed by means of the valve-controlled inlet 95 and outlet 90.
Patent GB-816473-A (GB)
Title: Improvements in reciprocating pumps for liquids
Inventor: CHESTER-BROWNE CHARLES HENRY
IPC: F04B9/14
Filed: 1954-06-25
Abstract: 816,473. Reciprocating pumps. SALISBURY PRECISION ENGINEERING Ltd. Sept. 26, 1955 [June 25, 1954], No. 18741/54. Class 102(1). [Also in Group XXX] A primary piston 61, Fig. 3, is reciprocated within a secondary piston 62 surrounded by a cylinder 60 by a handle 70 and a link 69 whereas the pressure and suction strokes of the secondary piston 62 are effected by abutment against a block 68 at the outer end of the primary piston 61 and by friction rings 63, 64 respectively unless the secondary piston 62 is held at the end of the pressure stroke by a disengageable locking plate 67 whereupon on the primary piston 61 working alone delivers through a ball valve 116 at a lower rate and at a higher pressure than obtains when both pistons are actuated. The pump is mounted on a trolley and delivers hydraulic fluid to a ram 50 serving to elevate a loading platform of the trolley (see Group XXX). The locking plate 67 is U-shaped and has a first arcuate portion 78, Fig. 5, through which the secondary piston 62 may slide and a second arcuate portion 79 which when the plate is depressed against springs 81 engages slots 80 of the secondary piston 62. Depression is effected by rocking a lever 89 to one end of which the plate is bolted by a rod 82. In a modification the secondary piston is automatically locked by engagement of an upwardly spring-biassed pin 167, Fig. 6, in a piston groove 180 when back pressure set up in the ram cylinder exceeds the power of the spring 172.
Patent GB-133819-A (GB)
Title: Improvements relating to Power Presses for Operating on Sheet Metal and for like purposes.
Inventor: GRIFFITHS HARRY ALBERT
IPC: F16D59/00
Filed: 1918-11-15
Abstract: 133,819. Griffiths, H. A., and Griffiths, R. H. Nov. 15, 1918. Periodic.-Metal-working presses are stopped after each operation by a brake comprising a band d in contact with a disk c which carries a ratchet g engaged by a pawl h on a disk i connected by a link j to a lug k on the plunger l. The shafts of the brake disk and plunger are parallel. The band d is adjusted by screws n, and the disk i may have a brake adjusted by screws p. The link and ratchet g are shaped so that the brake is operative during the latter half of the return movement of the plunger, whilst a fixed guard may hold the pawl h out of action during part of its stroke.
Patent GB-1162045-A (GB)
Title: An Arc Furnace having an Electrode to come into Contact with a Melt
IPC: H05B7/06
Filed: 1967-04-24
Abstract: 1,162,045. Furnace electrodes. BROWN, BOVERI & CO. Ltd. 24 April, 1967 [26 April, 1966], No. 18788/67. Heading H5H. An arc furnace electrode which is externally removable comprises a part 4 in contact with the melt which is made of the same metal as that of the melt and a part 5 of good thermal and electrical conductivity, electrically and thermally connected to the part 4 which extends to the outside of the furnace. If the melt is iron or steel, part 4 is of iron or steel and part 5 is of copper or silver. Part 5 has a plateshaped cooling surface 7 and is resiliently urged into the furnace lining 1 by three springs such as 12. Parts 4 and 5 are joined at 6 by pouring one part on to the other while still molten. In an alternative arrangement the parts 4 and 5 are formed individually, part 4 having a conical recess in which a conical projection of part 5 nestles. Vertical ribs are formed on the outside of part 5 between which copper bus-bars are accommodated. The bus-bars and part 5 may be in an air duct through which cooling air is passed. The cooling of the electrode may be increased temporarily when the melt is being poured from the furnace.
Patent GB-430942-A (GB)
Title: Improvements in and relating to eccentric toothed gearing
IPC: F16H55/08
Filed: 1934-06-26
Abstract: 430,942. Epicyclic toothed gearing; pulley-hoists. FLIESBERG, E. A. M., 4, Stora Mossens Backe, Appelviken, Stockholm. June 26, 1934, No. 18818. [Class 80 (i)] [See also Group XXX] In an eccentric epicyclic gear of the kind in which the radial middle planes of the gear wheels coincide, the sum of the addenda of the co-operating internal and external teeth does not exceed the eccentricity, so that the difference in the number of teeth may be as small as between 1 and 4. Means are provided for relieving stresses due to inaccuracies in the teeth. In the form shown in Fig. 2, eccentrics 25, 27 spaced 180‹ apart are journalled together and freely supported between a fixed bearing 29 and the motor shaft 3. The eccentrics are driven at 31<a>, 31b by a flexible shaft 40 splined at 31 to the shaft 3, and carry gyrating gears 140, 150 meshing with fixed externally-toothed gears 170 and with internal teeth 180 on the driven member 32. In the pulley-block shown in Fig. 3, the shaft 3 carrying the hand-operated chain-wheel 35 is formed with the eccentric 38 and is carried in self-aligning bearings 290, 291. The gyrating gear 131 meshes with teeth 181 on the fixed casing and with teeth 161 on the hoisting wheel 37, which is supported on shaft 3 by a bush 36 extending inside the gearing so as to withstand tilting movements due to any irregularities in the meshing of the gear teeth.
Patent GB-459156-A (GB)
Title: Improvements in or relating to circular looms
IPC: D03D37/00
Filed: 1935-07-02
Abstract: 459,156. Circular looms. BRITISH CELANESE, Ltd., 22, Hanover Square, London, DICKIE, W. A., and HALE, F. C., c/o British Celanese, Ltd., Spondon, near Derby. July 2, 1935, No. 18876. [Class 142 (ii)] The tangential vane wheel shafts 4 carried by columns 13 mounted on a ring 14 rotating about the loom axis are driven through universal couplings 20, 21, 22 of the Oldham type from bevel gearing 15 and shafts 16, which are mounted in the columns 13 and are furnished with pinions 17 engaging a stationary annular gear. Bearings 23 carrying the shafts are, moreover, bolted through slots to the columns. Each shaft can thus easily be adjusted in a direction parallel to itself so that the vane wheels 5 correctly engage the shuttles or be withdrawn therefrom to facilitate withdrawal of the latter. The vane wheels press against metal flanges of rollers, which may have bodies of fabric impregnated with synthetic resin and be mounted on horizontal axes 7. The shuttles carry rollers 10 bearing against a circular rail 8 having an inclined face with a rubber covering 9.
Patent GB-1136197-A (GB)
Title: Time delay relay
IPC: H01H61/06
Filed: 1967-04-25
Abstract: 1,136,197. Thermal flashers. WAGNER ELECTRIC CORP. 25 April, 1967 [29 April, 1966], No. 18996/67. Heading H1N. A snap-action switch comprises a buckling vane 10 with a natural curvature about a longitudinal axis (14, Fig. 1) provided with expansible pull means 16 secured to diagonally opposite corners on the naturally convex side so as to bow the vane when cold so that it is concave on the pull means side about an axis perpendicular to the longitudinal axis. A resistance coil 22 having a positive temperature coefficient of resistance, e.g. Ni alloy, is connected in parallel across said pull means 16 by a permanent junction 28 and contacts 20, 21 which close when means 16 is cold. A heater 30 is connected across said pull means 16 by junction 28 and contacts 19, 18 which close when means 16 is cold. A load 36 is energizable through contacts 31, 32, which close when means 16 is hot. When switch S is closed and a potential applied across terminals 6, 8 heater 30 and coil 22 are energized. As coil 22 is heated by heater 30, its resistance increases, thus causing the current through pull means 16 to increase sufficiently to expand means 16 to snap vane 10. Load 36 is energized and coil 22 and heater 30 are de-energized. The pull means 16 is maintained expanded till the potential is removed by the current therethrough. While load 36 is energized coil 22 and heater 30 cool to allow the switch to reset. In a modification (Fig. 4), the permanent junction 28 is replaced by contacts (42, 44) which close when the means 16 is cold and are connected to an additional load (38). In the hot condition, there is no current through the pull means 16; it is maintained expanded by an additional heater (46) adjacent or wound about it and energized with load 36. The load 36 may be a warning signal light on a motor vehicle.
Patent GB-1404342-A (GB)
Title: Spraying apparatus
IPC: A01M21/04
Filed: 1972-04-25
Abstract: 1404342 Spraying of weeds CHIPMAN CHEMICAL CO Ltd 3 April 1973 [25 April 1972] 19086/72 Heading AID A spraying apparatus is mounted in a standard-size freight container for mounting on a railway wagon, liquid herbicide being drawn from storage tanks 9 and 10 by variable metering pumps 13 and 12 at a rate proportional to the speed of the wagon and introduced into mixing chambers 15 and 14 fed with water by a pump 16, the diluted herbicide passing along conduits 21 to spray nozzles 22 and 24. The exterior fittings are demountable for storage within the container. The metering pumps may be driven by a wagon axle, or by a ground or rail-engaging wheel on the container, via a hydraulic, electrical or mechanical (belt or cable) transmission; alternatively the metering pumps may be driven electrically from a diesel generator at a speed controlled by an electric sensor at a wagon axle or rail-engaging wheel, the pump output being adjustable by a thyristor control. Water is supplied from the train to the conduit 6 and liquid herbicide to the conduits 7 and 8. Insoluble herbicide may be placed in tank 3 and mechanically agitated in water to form a suspension. Pump 5 passes liquid from conduits 6, 7, 8 or tank 3 to the storage tanks 9 and 10 which hold different herbicides.
Patent GB-775729-A (GB)
Title: Constriction band
IPC: A61B17/132
Filed: 1955-07-01
Abstract: 775,729. Tourniquets. SEGERSTAD, G. J. F. H. AF. July 1, 1955, [Oct. 5, 1954], No. 19122/55. Class 81(2) A tourniquet comprises a band 1 attached to, or integral with, a block 3 provided with a fastening peg 6 and having a bevelled face 9 so providing a space. 8 into which part of the arm 2 can rise without being pinched during the tightening operation.
Patent GB-404636-A (GB)
Title: Improvements in mechanically propelled vehicles
IPC: B60K17/16
Filed: 1932-07-07
Abstract: 404,636. Motor-vehicle driving-gear. EVANS, E., and WILLIAMS, G. M., 87, Lamb's Conduit Street, London. July 7, 1932, No. 19253. Drawings to Specification. [Class 79 (ii).] In a motor vehicle the driving shaft drives a transverse shaft or axle through multiplying bevel gearing, the driving bevel wheel being larger than the driven one. Reference has been directed by the Comptroller to Specification 20936/95, [Class 79, Locomotives &c.].
Patent GB-844256-A (GB)
Title: Improvements in or relating to a method of copying and multiplying documents
IPC: B41M5/025
Filed: 1957-06-19
Abstract: 844,256. Copying documents. D'HAUTERIVE, G. M. G. June 19, 1957 [July 24, 1956], No. 19344/57. Class 98(2) [Also in Group XVI] A printed or written document made with fatty ink is pressed onto a copying surface coated with chemical reagents to form a latent image on the copying surface as a consequence of partial migration of reagent to the document, and the copying surface is treated to form a visible image or a printing plate. In Example 1 an enamelled sheet metal is coated with monochlororesorcin, pressed on the document for 15 to 30 minutes to fix this reagent particularly on the black areas of the document, the latter is removed and the sheet metal constituting the copying surface is pressed against the paper coated from a solution of diazotised 1-amino-2-naphthol-4-sulphonic acid and aluminium sulphate for 30 minutes, when the paper is released and treated with ammonia vapour to yield an image of yellowish white lines on a red background. In Example 2 a glass plate coated with ammonium sulphocyanide is pressed on a document similarly and then on ferric chloride paper to give an image, which may be used as negative for photographic prints. Pyrazolone derivatives may be included with the ferric chloride. Example 3 describes production of a lithographic printing plate from a glass plate coated with aluminium sulphocyanate by similar pressure against a document and subsequent treatment with a specified aqueous liquid after which fatty ink is applied, and in Example 4 such inked glass plate is treated with metal powder adapted to adhere to the ink and make a very opaque image which may be used as photographic negative. Example 5 is generally similar to Example 3 but uses the formate of aluminium instead of sulphocyanate, and in Example 6 a metal powder is sprinkled on the ink-treated plate of Example 5. Other alternatives are indicated. Specification 844,077 is referred to.