baber/WOPTO huggingface dataset:
Patent GB-387936-A (GB)
Title: Improvements in or relating to sound recording or reproducing apparatus
IPC: G11B15/46
Filed: 1932-08-02
Abstract: 387,936. Driving sound-films. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Mottram, E. T., 61, Sunset Avenue, Lynbrook, New York, U.S.A.) Aug. 2, 1932, No. 21.685. Convention date, Feb. 3. [Class 40 (ii).] Comprises film-driving mechanism for optical sound recording or reproducing apparatus wherein the film is given a substantially uniform speed and is supported at the point of exposure to the light beam by an idler roller which is restrained against free rotation by one or more spring-pressed friction discs. As shown, applied to a sound recorder, the film 10, Fig. 1, is drawn from a reel 11 and fed to a take-up reel 12 by means of a sprocket 7. The sprocket 7 is mounted on a shaft 8 driven by a worm gear 5 from the shaft 3 of the driving motor 2, as shown by Fig. 2, which is a section on the line 2-2 of Fig. 1. The film is kept in engagement with the sprocket 7 by retaining rollers 13, 13 and 14, 14 movable by means of eccentricallymounted thumb-screws 15, 16 respectively. Uniform speed is imparted to the film by a sprocket 18 mounted on a shaft 19 which is driven by a second worm gear 6 on the shaft 3, a loosely-mounted worm wheel 21, and an elastic system including springs 23 and a flywheel 24 secured to the shaft 19. The film is maintained in contact with the sprocket 18 by a roller 75 mounted on a triangular member 26 pivoted at 27. The roller 75 may be removed from film-engaging position, against the action of a spring 28, by lifting a spring-held pin 30 out of a recess and engaging it in a second recess 31. The film is supported at the exposure point by a roller 40 rotatably mounted on a fixed shaft 41. The roller 40 is rotated by the film but held against free rotation by means of annular friction discs 43, 44, Fig. 3, which are slidably mounted'on the shaft 41 but fixed against rotation thereon. A coil spring 45 exerts pressure on a member 46 which is slidably mounted on the shaft 41 but prevented from rotating thereon by a key 47, and a pin 48 extending from the member 46 to the disc 43 prevents rotation of the latter. The disc 44 is held against rotation by a pin 49 extending from a fixed member 50. The pressure exerted by the friction discs is adjustable by rotating a knurled nut 53 threaded on the shaft 41 and bearing against one end of the coil spring 45. The film is held against the roller 40 by a roller 58, Fig. 1, mounted on a leaf-spring arm 62 of a bell-crank lever 59 on the other arm of which is a pin 60 held by a spring 61, Fig. 2, in a recess. The roller 58 may be held in disengaged position by moving the pin into a recess 64.
Patent GB-1389286-A (GB)
Title: Wiper systems for vehicle windows
IPC: B60S1/34
Filed: 1972-05-10
Abstract: 1389286 Windscreen wipers ROBERT BOSCH GmbH 10 May 1972 [11 May 1971] 21723/72 Heading A4F The rear or other window of a vehicle, is provided with a wiper system comprising a wiper blade 20 pivotably connected to a wiper arm 14 mounted on a pivot 15 in or near the vertical plane of symmetry of the window, and a guiding member, e.g. a roller 22, is pivotably or rotatably connected to the inner end of the blade 20 and moveable in a slot 23, or other guide, adjacent the edge of the window to rotate the blade 20 relatively to the arm 14 during the wiper operation . In other embodiments the roller 22 is replaced by an arm carrying a slider 27, Fig.2 (not shown) slidable in a guide 26, or a sleeve 32, Fig. 3 (not shown) slidable on a guide tube.
Patent GB-1387855-A (GB)
Title: Curtain fittings
IPC: A47H1/142
Filed: 1972-05-10
Abstract: 1387855 Brackets SWISH PRODUCTS Ltd 9 May 1973 [10 May 1972] 21775/72 Heading A4B A curtain pole supporting bracket includes a foot having an annular groove 14 in which is positioned an annular covering member 16 to cover fixing screws inserted through holes 15 in the foot. The foot supports a stem 11 having at its outer end an eye 13 for receiving the pole. The member 16 may be a wooden or plastics curtain ring of circular or oval section and may be press-fitted and optionally glued in the groove. The bracket components may be made of turned wood.
Patent GB-423795-A (GB)
Title: Processes for the treatment of waters
IPC: C02F5/02
Filed: 1933-08-03
Abstract: Potable water containing soluble and stable magnesium or lithium salts, for example, chlorides or iodides, is obtained by adding a suitable acid to the water and then passing it through a mass containing magnesium or lithium compounds.  When the water contains calcium bicarbonate initially the treatment with acid may follow the passage through the mass containing magnesium or lithium compounds.ALSO:Potable water containing soluble and stable magnesium or lithium salts, for example, chlorides or iodides, is obtained by adding a suitable acid to the water and then passing it through a mass containing magnesium or lithium compounds.  When the water contains calcium bicarbonate initially the treatment with acid may follow the passage through the mass containing magnesium or lithium compounds.
Patent GB-172353-A (GB)
Title: Improvements in electric illuminating devices for theatrical stages, cinemas, and the like
IPC: F21S8/00
Filed: 1920-07-21
Abstract: 172,353. Rochford, T. H. July 21, 1920. Stage and like lamps; revolving lamps; lantern glasses.-Relates to apparatus for changing the colour of the lighting in theatres, kinematographs, and the like. According to the invention, thelamps 1 are enclosed in a casing 3 and an opening 4 is made in front of each one. A frame 5<a>, in which are mounted coloured glasses 5, can be moved in a slide 6 so as to change the colour of the lighting. In theatres, the foot-lights, sidelights, and batten lights may all be arranged in this way and worked from a central control. Kinematograph lenses may be fitted with similar movable colour screens. Fig. 17 shows a rotary lamp embodying the invention.
Patent GB-1125012-A (GB)
Title: Thermal insulation and processes for the manufacture thereof
IPC: B32B15/08
Filed: 1966-05-17
Abstract: 1,125,012. Thermal insulation. LINDE A.G. 17 May, 1966 [18 May, 1965], No. 21859/66. Heading F2X. [Also in Division F4] Heat insulating material for use in vacuum insulation, particularly of a container for a liquefied gas, comprises a packing of heatinsulating bodies each of which is of substantially cylindrical form and is made from plastically deformable non-metallic foil 1, such as a polyterephthalic acid ester having a coating 2 of metal, such as aluminium on the outer side. The coating may be applied by vaporization and the bodies are heated to a temperature such that the difference in coefficients of thermal expansion of the foil and coating causes them to curl. The bodies may have a length and periphery of about 4 mm. and have a bulk weight around 20 kgs. per cubic metre. A space containing the packing may be evacuated to a pressure of 10<SP>-4</SP> mm. Hg.
Patent GB-597767-A (GB)
Title: Thread controlling means for sewing machines
IPC: D05B47/00
Filed: 1945-08-25
Abstract: 597,767. Sewing machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Aug. 25, 1945, No. 21881. [Class 112] Intermittent tensioning-devices.-A device for applying heavy tension to the thread during stitch-setting in machines for sewing heavy or hard materials comprises a pair of thread-engaging members to which pressure is applied through a yielding thrust member by a reciprocating member; means are provided for adjusting the tension and also for varying the duration of application of the tension. In the arrangement shown, the tension discs 31, between which pass both threads of a two-needle machine, are mounted on a plunger 23 slidable in a bushing 15 secured in the frame of the machine by a plate 18 ; the plunger is reciprocated by an eccentric 13 on the needle bar shaft 6. The threads pass to and from the discs through slits such as 22 in lugs standing up from the plate 18. The outer disc 31 is engaged by the rim of a cap 38 adjustably carried on a rod 35 which is housed in a bore of the plunger 23 and acted on by a compression spring 40; the inner disc bears against a collar 26 adjustably fixed on one end of the bushing 15. Adjustment of the tension is effected by adjusting the nuts holding the cap 38 on the rod 35, and the duration of tension, which also determines the instant in the stitch-forming cycle at which tension is applied, depends on the lost motion between the discs 31 (which are normally separated by reason of the cap 38 bearing on the end of the plunger) and thus on the position of the collar 26. Specification 565,581 is referred to.
Patent GB-532709-A (GB)
Title: Improvements in or relating to explosive compositions
IPC: C06B29/02
Filed: 1939-07-27
Abstract: 532,709. Explosive compositions. DU PONT DE NEMOURS & CO., E. I., and DAVIS, C. O. July 27, 1939, No. 21885. [Class 9 (ii)] In a method of manufacturing explosive compounds, especially chlorate and perchlorate explosives, a sensitizing ingredient is dispersed in a solution of a stable inorganic chlorate or perchlorate in substantially anhydrous liquid ammonia, and the ammonia is subsequently removed from the resulting dispersion. Sodium chlorate and the perchlorate of ammonium, sodium, calcium, magnesium, and barium are mentioned. The sensitizer may be inorganic, such as aluminium, magnesium, antimony, zirconium, ferrosilicon, calcium silicide, and sulphur, or organic, such as diphenylamine, dicyandiamide, acetamide, mono-nitronaphthalene, dinitrotoluene, trinitrotoluene, pentaerythritol, various sugars, paraffin wax, and ammonium salts of organic acids. If the sensitizer is insoluble in liquid ammonia, it is preferably employed together with a dispersing agent. The ammonia is removed by evaporation, which may be at a reduced pressure, and the maintenance of the dispersion during the evaporation may be assisted by mechanical action.
Patent GB-913809-A (GB)
Title: Improvements in or relating to looms
Inventor: SCHWABE KURT
IPC: D03D49/36
Filed: 1961-06-17
Abstract: 913,809. Picking motions. BRITISH NORTHROP Ltd. June 17, 1961, No. 21973/61. Class 142 (2). A loom underpicking motion, giving substantially straight-line picking action, comprises a picking stick 14 pivoted at 22 to a lever 20 pivoted at 21 to the sley sword and pivoted at 30 to a control-rod 26 which is pivoted at 24 to the sley.
Patent GB-188793-A (GB)
Title: Improvements in apparatus for washing and steaming milk churns and the like
IPC: B08B9/08
Filed: 1921-08-19
Abstract: 188,793. Carter, P. F., and Gallimore, P. H. Aug. 19, 1921. Cans, washing and cleaning.-In apparatus for washing and steaming milk churns either steam and water or steam alone is supplied to the churn, while it is inverted over a steaming-block, by means of a special valve. A port e in the valve casing is connected to the water supply and a port d to the steam supply, the outlet f being attached to a pipe g leading to a jet h in a steaming-block j. The plug c of the valve is bored with a passage l straight through, passages p, q at an angle to this passage, and a smaller hole n containing a tuba n projecting in the direction of the outlet f. A slot r in the back of the plug engages a stud s to limit the turning of the cock in either direction. In the position shown, water passes through the passages l, p while steam is supplied through the tube n; both pass through the pipe g and swill out the churn. Turning the plug righthandedly brings the passages q, l into connection with the ports d, f respectively, thus supplying steam alone, and turning left-handedly closes all the ports. An indicating pointer k fixed to the operating-handle registers with a scale to show the position of the valve.
Patent GB-1480028-A (GB)
Title: Battery-powered cart
IPC: A63B55/60
Filed: 1975-05-21
Abstract: 1480028 Battery-powered cart HIRANO DENKI KK 21 May 1975 [29 Oct 1974] 22007/75 Heading B7H A battery-powered cart to be controlled through the medium of a rope 18 by an operator walking ahead thereof, such as a golf bag trolley, comprises an electric motor 24 engaged with a wheel shaft 22 and an electromagnetic brake 25, either of which may be supplied by the battery E, and speed control mechanism including rope 18 connected to a sliding member 20 and forwardly pullable against the bias of a spring 21, member 20 being movable along a pair of electrically conductive guide rods 26 and 27 which form parts of circuits to the motor 24 and brake 25, and member 20 carrying contacts M and N which are electrically connected to the rods 26, 27 and engageable with fixed contacts A 1 , A 2 , A 3 , B 1 , B 2 , and B 3  on the cart for completing the circuits to effect acceleration or deceleration of the cart by motor 24 and fixed contact D to actuate the electromagnetic brake 25. The rope 18 extends through a pivotable handle 17 by which steering of a front wheel unit 11 is effected.
Patent GB-735443-A (GB)
Title: Improvements in or relating to counting devices
Inventor: GREENHOW HENRY
IPC: G06M1/34
Filed: 1952-09-02
Abstract: 735,443. Counting-apparatus; zeroizing mechanism. ENGLISH NUMBERING MACHINES, Ltd. Sept. 2, 1953 [Sept. 2, 1952], No. 22058/52. Class 106 (1). [Also in Group XXIV] A composite member in a counter is rotatable as a unit and comprises two relativelyrotatable parts one of which is made of a plastic material and is so shaped that at least one integral and inherentlyresilient pawl is formed for co-operating with a recess or recesses in the other part. A number wheel, Fig. 1, has an outer part 24 formed with ratchet teeth 25 which are engaged by pawls 21 -integral with an inner part 20. The outer part has teeth 28 by which it is driven and transfer teeth 30 while the inner part is formed with a re-setting cam 29. Driving teeth may alternatively or additionally be carried by the inner part. The inner part is formed by moulding or machining a plastic such as a self-lubricating polyamide. The outer part may be similarly formed or it may be of cast or machined metal. The pawls may alternatively be formed with the outer part. The arrangement allows the number wheels to be re-set to a pre-set number. In a different arrangement, Fig. 4, a units number wheel 124 has ratchet teeth engaged by pawls 121 formed integrally with an inner part 120 fast on a driving shaft and by non- return pawls 155 integral with a fixed disc 154. The counter may thus be advanced by rotation or oscillation of the driving shaft. In a further arrangement, Figs. 6 and 9, a counter is actuated by rocking a shaft 282 which is then restored by a spring 287. Ratchets fast with a gear 289 co-operate with ratchettoothed sleeves 292 and 293, fixed and non- rotatable relative to the shaft 282 respectively, under the action of a spring 296. The gear 289 is thus advanced in one direction at each oscillation of the shaft 282. Geared to the gear 289 is an inner part 220 with integral pawls 221 engaging ratchet teeth in an outer part 224 fast with the units number wheel 280. Integral with the wheel 280 and with each of the higher order wheels, which are of plastic material, is an inherently resilient pawl 299 which co-operates for zeroizing with a longitudinal notch in the shaft 223 on which the wheels are rotatable. Zeroizing is effected by rotation of a knob 301 fast on this shaft.
Patent GB-780842-A (GB)
Title: Improvements in or relating to steam boilers
IPC: F22D7/08
Filed: 1952-09-03
Abstract: 780,842. Promoting circulation in steam boilers. VORKAUF, H., [trading as LA MONT KESSEL HERPEN & CO., KOMM.- GES.]. Sept. 3, 1952 [Sept. 8, 1951], No. 22172/52. Class 123(2) In a steam boiler comprising steamgenerating tubes 20, Fig. 1, extending between lower water distributing headers 19 and upper collecting headers 21, the latter communicating with a steam-andwater drum 1, the downcomer 2 terminates in a nozzle 3 located in an expansion chamber 4 which is provided with a steam outlet 8, including stop and regulating valves 9, 22, and a restricted water outlet 5 merging into a diffuser 6 leading to the lower headers 19. Water at the temperature and pressure of the saturated steam in the drum 1 flows through the downcomer 2 to the chamber 4 where steam formed due to the fall in pressure escapes via the outlet 8 to a point of low pressure, the water continuing through the diffuser 6 in which its pressure is increased above that in said drum 1. A non-return valve 10 is fitted between the diffuser and lower headers, and the diffuser is preferably provided with an outlet or sediment valve 23. In a modification" Fig. 2, a steam-water mixture is supplied to the expansion chamber 4 from the upper headers 21, said chamber having a steam outlet 22 leading to steam space of the drum 1 and a water outlet 5 surrounded by a second chamber 17, to which make-up water is fed from the drum through a pipe 33. In further modifications, Figs. 3 and 5 (not shown), a steamwater mixture is supplied tangentially to a cylindrical casing wherein the steam and water are centrifugally separated, the casing having an axial steam outlet communicating with the steam drum and a tangentially-directed water outlet leading to a diffuser. A mechanically-driven circulating pump may be disposed in a circuit parallel with the downcomer 2.
Patent GB-888932-A (GB)
Title: Improvements in or relating to articles made of transparent or translucent material
IPC: E04C1/42
Filed: 1958-07-10
Abstract: 888,932. Glass &c. building blocks; daylight refractors. COMPAGNIE DE SAINT GOBAIN. July 10, 1958 [July 10, 1957], No. 22219/58. Classes 20(3) and 87(1) [Also in Group XXIII] A glass &c. plate 1 is provided on opposite faces with relatively staggered opaque or less transparent strips 2a, 3a. The strips may be of aluminium, paint or enamel, or be produced by sand-blasting. In a modification, a series of differently coloured strips are provided on one face. The sheet may form one wall of a hollow building block which may include an intermediate diffusing screen.
Patent GB-511813-A (GB)
Title: Improvements in self-lubricating valves
IPC: F16K5/22
Filed: 1938-07-26
Abstract: 511,813. Lubricating valves. LINKOPINGS ARMATUR - OCH. METALLFABRIKS AKTIEBOLAG. July 26, 1938. No. 22241. Convention date, Aug. 13, 1937. [Class 135] In a valve of the kind in which lubricant is forced from one pressure chamber 15 to another pressure chamber 15a through a system of channels 6, 7, 7a in the contacting surfaces of the valve and its seat, when the valve member is moved from one position to another, the valve member 2 is of conical form so that it may be adjusted in relation to its seat by the valve cover 3, and the pressure chambers are both disposed at the larger end of the valve member so that thickening of lubricant in either the vertical or the annular channels is avoided. An arcuate member 16 carried by the stem 5 serves to displace lubricant from one chamber to the other. The annular channels 6 are formed in the valve casing 1 and the vertical channels 7, 7a are formed in the valve member or the valve casing 1 or as shown partly in each. The valve stem has supply ducts 5a, 5b.
Patent GB-336670-A (GB)
Title: Method of separating zinc, tin, lead, bismuth, cadmium, antimony, arsenic and similar elements from sulphide ores or secondary products by means of blast-smelting
IPC: C22B19/04
Filed: 1929-07-19
Abstract: 336,670. Kohlmeyer, E. J. July 19, 1929. Rotary furnaces.-A furnace, for use in blast smelting sulphidic ores, consists of a short rotating drum, the diameter of which is about equal to the length, and which is closed at one end so that the flame is compelled to enter and leave the furnace by the same side. Air is blown on or into the melt.
Patent GB-882560-A (GB)
Title: Method of polymerising unsaturated hydrocarbons
IPC: C08F2/00
Filed: 1958-07-11
Abstract: Unsaturated hydrocarbons of formula CH2= CHR, wherein R is a C1 to C3 alkyl radical, are polymerized with a catalyst prepared by contacting an alkyl beryllium compound with a solid, hydrocarbon-insoluble, crystalline compound of a IVa, Va or VIa metal, the metal in the compound having a valency lower than the maximu.  The olefins disclosed are propylene, butene and pentene, and catalyst components specified are TiCl3, TiCl2, VCl3, ZrCl3, CrCl3, BeEt2 and EtBeCl. Catalyst protective agents also may be present and preferred are metal alkyls, e.g. of alkali metals or Al, Grignard compounds, AlEt2Cl and complexes of triethyl aluminium with ether, pyridine or quinoline.  Polymerization may be in bulk or in a hydrocarbon solvent.  Hydrogen may be used to control the molecular weight. Methanol, methanolic HCl, water, benzene and acetone are used in the examples in the destruction of the catalyst and the purification of the product.  Fractionation of the polymers obtained may be effected with acetone, ether, hexane, heptane and octane.  The polymers obtained are almost completely isotactic and may be used directly for the production of film, fibres and shaped articles.  Specifications 810,023 and 828,791 are referred to.
Patent GB-751439-A (GB)
Title: Construction clip and locking plate therefor
IPC: F16B5/06
Filed: 1954-07-30
Abstract: 751,439. Clips for securing wall &c. linings. ECKEL, O. C. July 30, 1954, No. 22312/54. Class 20(4). A clip for securing insulation g, Fig. 4, to a wall or ceiling C comprises a flat base 10, Fig. 1, having holes 11 through which nails may pass to secure it to the ceiling, an offset portion 12 in base 10 to receive the tongue 15 of a shank 14, the opposite end of the shank being slotted at 16 to form fingers 17, and a locking plate 25 to co-operate with notches 20 on the shank 14. In assembling layers of insulation a number of clips 33 are secured to the ceiling C and a locking plate 25 is slipped on to each shank and when alongside two opposite notches 20 is rotated to lock it thereon. Other layers of insulation are added and a locking plate slipped on to each shank and rotated to hold each layer in position. Some clips 34 may have their bases spaced from the ceiling C and lying between two layers of insulation, the outer layer of insulation being held by the outwardly turned shank fingers 17 of such clips so that conduction of heat through the whole thickness of insulation may be avoided. The locking plates 25 are each formed with opening 27, Fig. 2, having a slot-like portion 27a longer than the width of the shank 14, and a minimum length portion adjacent border line 30 which is longer than the width of shank 14 between two notches 20 but shorter than the unnotched width of the shank. In a modification the slot-like portion 27a is narrower. The base 10 of the clip may be secured to a ceiling by cement or adhesive.
Patent GB-189212-A (GB)
Title: Improvements in or relating to cartons for fragile materials
IPC: B65D75/06
Filed: 1921-08-23
Abstract: 189,212. Smith, C. H. Aug. 23, 1921. Packing tailors' chalks etc.; unpacking. - A carton for tailors' chalks and other flat articles comprises a wrapping of corrugated paper A folded transversely to the corrugations A<2> so as to surround the articles with their edges engaged between opposed corrugations and spaced apart by the intervening ribs of such corrugations. The wrapping may be provided with a strip of adhesive paper C, by which the meeting edges thereof are secured together and one or more walls of the carton may have lines D drawn thereon, so as to indicate where cuts may be made to liberate one or more of the articles; or perforations E may be made in the walls; or a thread F, running in zig-zag fashion around the inner face of one wall and attached thereto by strips F<1>, F<2>, may be provided for the same purpose.