baber/WOPTO huggingface dataset:
Patent GB-193817-A (GB)
Title: Improvements in oil pressure intensifiers
IPC: F16N13/16
Filed: 1922-10-16
Abstract: 193,817. York, R. S. Feb. 23, 1922, [Convention date]. Intensifiers.-In a differential-piston intensifier for supplying oil under pressure in which a charge chamber is in communication with the oil cylinder, fluid-pressure is supplied to the charge chamber so as to fill the oil cylinder and retract the plungers. The intensifier comprises a hollow stepped plunger 7, 7<a>, the ends of which are grooved at 34, a power cylinder 5, and an oil cylinder 20. The cylinders fit the plunger only at their necks and are provided with stuffing boxes, the glands, 9, 21 being connected by integral bars 22. A U-shaped steam pipe 11 extends from the head of the power cylinder into the open end of the plunger in order to heat the oil. The charge chamber 23 communicates with the oil cylinder by a port 31 and is provided with a filling plug 24 and a strainer 25. The power cylinder is provided with a safetyvalve 13. By means of a two-way cock 17, fluid pressure is supplied from a pipe 18 either to a pipe 16 leading to the power cylinder or to a pipe 30 leading through a non-return valve 28 to the chamber 23. When the plunger has reached the end of its power stroke, the chamber 23 is drained through a cock 26 and then filled through the opening closed by the plug 24. The cock 17 is then manipulated to supply fluid-pressure to the chamber 23, a drain-cock 15 on the power cylinder being opened. If the fluid is water or steam, water accumulating under the oil forces oil into the oil cylinder and causes the p.unger to be retracted. If compressed air is used, it is introduced above the oil and the port 31 is disposed at the bottom of the chamber. At the end of the retracting stroke, the cock 15 is closed and fluid-pressure is supplied to the power cylinder, oil being delivered through a non-return valve 32 to the delivery pipe 33.
Patent GB-1237093-A (GB)
Title: Filters for liquids
Inventor: BUCKMAN KENNETH ERNEST
IPC: B01D35/00
Filed: 1968-06-13
Abstract: 1,237,093. Oil filter. GENERAL MOTORS Ltd. 5 June, 1969 [13 June, 1968], No. 28131/ 68. Heading BID. [Also in Division F2] An oil filter for an I.C. engine has a main filter element 12 (Fig. 2) across which is connected a main pressure-operated by-pass valve 10, an upstream wire screen 6 protecting valve 10 and the oil circuit against passage of completely unfiltered oil when valve 10 opens, and a further by-pass valve 8 being connected across screen 6 and opening if the screen clogs. In Fig. 2, valve 8 is a resilient collar which is compressible to uncover apertures 7 when the pressure across screen 6 rises, and other figures illustrate alternative types of valve 8. In Fig. 3 (not shown) the valve comprises thin portions (19) of a cylindrical elastomeric wall which deform under pressure away from end disc (16) of the filter element. Studs (21) secure the wall and screen 6 to disc (16). Fig. 4 (not shown) illustrates a similar valve but having a square crosssection with corner posts 32 (Fig. 4a) which are bent inwards to engage flexible wall sections 31 when the valve-screen unit is in place, sections 31 bending under pressure to by-pass the screen. In Fig. 5 (not shown) screen 6 is mounted across an aperture in a flap (43) which bends to open the valve, an extension (44) of the flap restraining solids trapped by screen 6 from passing through the aperture. In Fig. 6 (not shown) screen 6 is loaded by a spring and moves off its annular seat to by-pass the screen. Fig. 7 shows a composite valve annulus 64 with a flap 65, which acts as an anti-drain valve for the filter cartridge, and a flap 63 which serves as the main by-pass valve across filter element 62. Screen 6 is of annular form and is by-passed by deformation of portion 74 of resilient annulus 73. Fig. 8 shows a cylindrical screen 6, one end of which is closed by a metal foil 82 which ruptures under pressure to by-pass the screen. In Fig. 9 (not shown) the construction is similar but the foil and screen are interchanged.
Patent GB-139441-A (GB)
Title: An improvement in the purification of carbazole
IPC: C07D209/84
Filed: 1919-11-14
Abstract: Carbazole is purified and obtained in well-defined crystals by slow dilution of its solution in concentrated sulphuric acid, this may be effected by exposing the solution to the atmosphere or other moist gas, with or without agitation, or by blowing air or other moist gas through the solution.  The solution may first be diluted rapidly to a degree short of precipitation and then diluted slowly as described above.
Patent GB-1493843-A (GB)
Title: Apparatus for monitoring a web of material for faults
IPC: G01N21/89
Filed: 1975-07-04
Abstract: 1493843 Detecting flaws in sheets photoelectrically ERWIN SICK GmbH OPTIKELEKTRONIK 4 July 1975 [12 July 1974] 28282/75 Heading G1A In an apparatus for detecting flaws in a moving sheet, a scanning light spot 26, Fig. 3, is directed on to the sheet 12 by a cylindrical lens 11; light reflected by the sheet is collected by an optical rod 13 and passes to. one or more detectors 28, 30, while light scattered by the sheet is collected by another rod 14 and passes to one or more detectors 18, 19. Preferably the angle at which the scattered light is collected is such that the lens 11 may be used to direct the light on to rod 14 with the aid of a further lens 20. The light may be provided by mixing light from a He-Ne laser and a Xe lamp, and filters 21, 22, 27 and 29 may be provided so that the detectors receive different portions of the spectrum; the detectors may also have different spectral responses. The detector outputs may be logically combined to give information about the flaws.
Patent GB-290903-A (GB)
Title: A new or improved process for electro-plating the surface of aluminium or aluminium alloys
IPC: C25D11/04
Filed: 1927-10-25
Abstract: 290,903. Gower, C. H. R., and O'Brien & Partners, Ltd., S. Oct. 25, 1927. Metals, pickling; copper, silver, nickel, zinc. and cadmium, depositing; preparing surfaces; treatment after electrolysis. - Aluminium or an aluminium alloy is prepared for plating by anodic treatment in a bath containing sulphuric acid or a substance giving rise to sulphuric acid at the anode. The following are suitable baths (a) sulphuric acid 1¢ pints, hydrochloric acid ¢ pint, water 12 pints (b) sulphuric acid 1 lb., hydrochloric acid lb., sodium sulphate 1 lb., water 1 gallon (c) sodium sulphate ¢ lb., ammonium chloride 6 oz., acetic acid 2 pints or sulphuric acid ¢ pint, water 1 gallon. The current density may be 40 amps. per sq. ft. at 4-5 volts. The article is introduced into the bath with the current on: the connections to one article should be arranged to give a uniform current distribution. The cathodes of lead or carbon. The treatment lasts from one to four minutes. Castings may be given a second anodic treatment for 30 seconds in a bath consisting of 1 gallon of a 6 per cent solution of brown potash and 2¢-3 oz. liquid ammonia. Articles of rolled aluminium or of the alloy known by the registered Trade Mark Duralumin may be given a second anodic treatment in a bath constituted as above with the addition of 5 oz, of nitric acid. The articles. after treatment should be washed and placed in the plating bath while wet. Prior to the anodic treatment the articles may be treated with a boiling solution of brown potash to remove grease and scoured with pumice powder or lime. The plating baths are preferably about 2‹ BÚ above the usual strength. A suitable copper bath contains copper sulphate 2“ lbs., potash alum 2 oz., sulphuric acid 5 fluid ounces, water 1 gallon. This is electrolyzed at 65-70‹ F. with a current density 16 amps. per sq. ft. at 2 volts. A suitable nickel bath contains nickel sulphate 1¥ lbs., citrate of soda 3 oz., water 1 gallon, together with sufficient nickel carbonate to render the solution neutral. This is electrolyzed at 120-140‹ F. at 5 volts reduced after a short time to 2 volts, the solution or the cathode being agitated. The nickel-plated article is washed and dried and baked for 10 minutes at 350‹ F. In the case of cadmium, zinc, and silver a voltage of 1¢ is sufficient.
Patent GB-826296-A (GB)
Title: Means for regulating the flow of cooling air to an internal combustion engine
IPC: F16D33/16
Filed: 1957-09-09
Abstract: 826,296. Axial-flow fans. DAIMLERBENZ A.G. Sept. 9, 1957 [Sept. 8, 1956], No. 28390/57. Class 110 (1). [Also in Groups XXVII and XXIX] An I.C. engine cooling fan 8 is driven by the engine via an hydraulic coupling 7 which an outflow resistance 19 retains completely filled and therefore substantially slip-free up to a speed determined by a valve 22 controlled by a thermostat 21 in an engine cooling water exit duct. The coupling 7 has a double runner 13 driven by a double impeller 12 mounting a drive pulley 11, and is supplied with sump oil continuously circulated by a pump 26 via the valve 22, a duct 28, fixed scoop tubes 16, a duct 29 and an interchangeable Venturi 19. A bore 20 always allows a minimum flow through the valve 22 which, with increasing engine coolant temperature, is progressively opened to retain complete coupling filling up to correspondingly higher engine speeds. Once slip has set in it increases with engine speed to a point where fan speed decreases as engine speed increases.
Patent GB-880307-A (GB)
Title: Improvements in or relating to lifts
IPC: B66B9/187
Filed: 1959-08-19
Abstract: 880,307. Taking up slack of electrical conductors. TORNBORG & LUNDBERG A.B. Aug. 19, 1959 [Sept. 1, 1958], No. 28407/59. Class 78 (2). An electric cable A connected between a lift 2 and its surrounding fixed framework 1 passes over a guide 3 and around a pulley 5 finally entering the lift 2 through a conduit 13. The pulley 5 is mounted on a carriage 7 which has pulleys 8 to enable it to be displaced relatively to guide rails 9. Further guides for the cable A comprise a member 10 surrounding the cable A and closed by resilient members 11, 11. In operation, as the lift descends from the position shown in Fig. 1, the pulley 5 moves downwards, and pointed portions 12 on the carriage 7 come into engagement with respective members 11 so as to spring them apart and permit the cable A to pass into engagement with the guides 10. Similarly the pulley 5, on its upward movement when the lift rises, draws the cable A out of engagement with the guides 10. The conduit 13 is formed with a curved portion 13a the end of which is thus in alignment with the guides 10 so that it can draw the cable A into and out of engagement with the guides 10. The resilient portions of the guides 10 may be coiled springs or alternatively the guides may be opened and closed by counterweight action.
Patent GB-260111-A (GB)
Title: An improved clamp for louis heels, with attachment for fixing sole extension
IPC: A43D25/12
Filed: 1925-11-13
Abstract: 260,111. Cooper, C., Valters, W. C., Jackson, W., and Crago, S. Nov. 13, 1925. Heels, attaching by cement; heels, facing. -A device for holding heels in position while the adhesive by which they are to be secured is setting comprises a base member 1 and a substantially U-shaped frame 5, 6 detachably mounted on the base and provided at the end of one arm with a shoe support and at the end of the other arm with a screw threaded member carrying a heel clamping plate adjustable to wards or away from the support. The frame is retained by a pin 4 in a groove in an arm 2 pivoted to the base, and is hinged at 7. An adjustable toe rest 12 is provided, carried by the base. An attachment for holding the usual cemented sole-extension to the breast of the heel comprises a bent plate 17 carrying a pad consisting of a rubber sheath packed with sponge, and springs 19 connecting the plate with links 18 formed with holes adapted to engage a pin on the part 6 of the frame.
Patent GB-682190-A (GB)
Title: Improvements in a sanitary napkin
IPC: A61F13/15
Filed: 1949-11-08
Abstract: 682,190. Sanitary towels. OAKLEY, J. L. D. (International Cellucotton Products Co.). Nov. 8, 1949, No. 28608/49. Class 81 (ii). A sanitary napkin having an absorbent pad 1 is enclosed in a wrapper 2 which comprises a web of gauze having thereon an applique of non- woven fibres some of which are adhesively united to portions of some of the threads of said gauze web in discrete areas. As shown on a gauze web 5 comprising lengthwise and crosswire threads 6, 7, an applique of cotton fibres 8 is deposited some of the fibres being attached by adhesive applied in areas such as 9, 10. The adhesive employed is preferably thermoplastic and is preferably applied to the gauze and dried or partially dried before applying the fibres 8. The applique has a basis weight of about 1¢ grams to 6 grams per square yard of web. Specification 553,657 is referred to.
Patent GB-761513-A (GB)
Title: Method of preparing agglomerates containing vulcanization accelerators for rubber
Inventor: HAYES DONALD W
IPC: C08J3/22
Filed: 1954-10-05
Abstract: Agglomerates containing a vulcanization accelerator for compounding into rubber are prepared by mixing an aqueous slurry of a powdered accelerator selected from tetramethyl thiuram disulphide or monosulphide, and zinc diethyl or dimethyl dithiocarbamate with a latex containing a maximum of 10 per cent synthetic rubber by weight, a water-soluble non-volatile stabilizer and an anti-oxidant, and selected from polychloroprene, polybutadiene, butadiene-styrene, and butadiene-acrylonitrile latices, the amount of latex being such that the natural or synthetic rubber content of the mixture is at least 4 per cent (preferably 4 to 6 per cent) by weight of said powdered accelerator, heating the mixture to coagulate the latex, removing excess water and the stabilizer, forming agglomerates of the mixture, and drying.  The stabilizer may consist of sodium chloride or sodium or potassium hydroxide, and the antioxidant may be non-discolouring, e.g. a styrenated phenol.ALSO:Agglomerates containing a vulcanization accelerator for compounding into rubber are prepared by mixing an aqueous slurry of a powdered accelerator selected from tetramethyl thiuram disulphide or monosulphide, and zinc diethyl or dimethyl dithiorcarbamate with a latex containing a maximum of 10 per cent natural or synthetic rubber by weight, a water soluble non-volatile stabilizer and an anti-oxidant, and selected from natural rubber, polychlorofrene, polybutadiene, butadiene-styrene, and butodiene-accrylonitrile latices, the amount of latex being such that the natural or synthetic rubber content of the mixture is at least 4 per cent (preferably 4 to 6 per cent) by weight of said powdered accelerator, heating the mixture to coagulate the latex, removing excess water and the stabilizer, forming agglomerates of the mixture, and drying.  The stabilizer may consist of sodium chloride or sodium or potassium hydroxide, and the anti crudant may be non-discolouring, e.g. a styrenated phenol.  In an example 1000 grams of water are added to 46 grams of a butadiene-styrene latex containing 21,53 per cent synthetic rubber and 0,27 per cent of a styrenated phenol by weight.  The diluted latex is added to an aqueous slurry of 2000 grams water, 100 grams sodium chloride, and 190 grams tetramethyl thiuram disulphide.  The mixture is agitated and steam heated to coagulate the latex.  The excess water is decanted, and the residue washed with water, filtered, extruded into strings or rods, and dried.
Patent GB-815369-A (GB)
Title: Improvements in pea and bean depodding machines
Inventor: MATHER WILLIAM LORIS
IPC: A23N15/10
Filed: 1955-10-10
Abstract: 815,369. Shelling peas &c. MATHER & PLATT Ltd. Nov. 6, 1956 [Oct. 10, 1955; Oct. 22, 1955], Nos. 28765/55 and 30259/55. Class 6(3). A pea depodding machine comprises a series of revolving beaters mounted between a pair of moving members, one of which is perforated to allow the passage of separated peas therethrough. In the embodiment, Fig. 1, beaters q are mounted between revolving drums a and i, the outer drum a being formed of wire mesh so as to allow peas separated by the beaters q to fall on to a conveyer u for conveyance out of the machine. One beater is driven by means of a belt r from a power unit 16, and that beater in turn drives the rest by means of a belt p, the latter being so arranged that for the most part adjacent beaters rotate in opposite directions. Another beater also serves to drive a shaft d through a belt 23, the shaft d in turn being operatively connected to the drums a and i so as to rotate them both in a clockwise direction as seen in Fig. 1. At the inlet end of the machine the outer drum a is discontinued and the shafts x<SP>1</SP> are fitted with spiral blades in place of the beaters q, in order to feed the vines from the inlet into the annular space between the two drums. As shown in Fig. 4, the beaters may be mounted between two endless belts 6 and 7, the lower belt 7 being perforated to allow peas to fall therethrough on to the conveyer 8.
Patent GB-1426369-A (GB)
Title: Hoses and hose ends fittings
IPC: F16L25/01
Filed: 1973-06-18
Abstract: 1426369 Two part coupling MILES REDFERN Ltd 19 April 1974 [18 June 1973] 28775/73 Heading H2E A hose 11 having an earthing wire 34 has an end fitting having a tubular spigot 15, which may have peripheral shoulders 16 to engage the inside of the hose, at the end of the wheel spigot there is an outward step 18 which has at least one hole 20 in which the earthing wire may be soldered or clamped by a grub screw 21. The step may be a separate collar 30. Two such end fittings may be joined by a union nut 28 and matching thread 14 and a seal 29 may be placed between. The earth wire may lie helically within the hose wall. There may also be lengths of reinforcing material 33 in the hose walls. The hose may be of extruded plastics.
Patent GB-390232-A (GB)
Title: Electric clock movement
IPC: G04C3/04
Filed: 1931-10-16
Abstract: 390,232. Electric clocks. BUTTICAZ, E., Corcelles, NeuchÔtel, Switzerland. Oct. 16, 1931, No. 28781. [Class 139.] Escapements.-In an electric clock driven by a spring periodically stressed by an electromagnet, the armature of the latter is locked in the energized position by a device released by the impulse pin of a balance wheel, a member rigid with the armature imparting an impulse directly to the balance as the armature moves to the de-energized position. The armature 3 pivoted at 4 is stressed by a spring 8 to assume the position shown in the Figure, the circuit of magnet 1 being completed at 2, 12. The armature pulls up, stressing the spring whereupon member 12 pivoted at 12<1> rocks to break the magnet circuit. The armature is held against retraction however by a jewel pallet 14, carried on an arm 15 pivoted at 16 and sprung against a stop 19 by a spring 17. At the end of the clockwise movement of the balance the impulse pin 6 thereon rocks member 15 to release the armature at 5<11>. The balance now completes an anticlockwise swing and as it reverses to move clockwise again, its pin 6 receives an impulse from an arm 5 rigidly fixed to the armature, as the latter is moving under the action of spring 8. A pawl 11 also rigidly fixed to the armature advances the train through a ratchet 9.
Patent GB-898048-A (GB)
Title: Process for the production of neutral alkali metal salts of isomeric phthalic acids
Filed: 1959-08-24
Abstract: A process for the production of neutral alkali metal salts of iso- or terephthalic acid, or a mixture of ortho-, iso and terephthalic acids from the free acid comprises heating the iso- or terephthalic acid or mixture of ortho-, iso- and terephthalic acids at a temperature of 250 DEG C. to 370 DEG C. with neutral alkali metal phthalate or alkali metal biphthalate under a pressure of 0.1-1.5 atmospheres with constant stirring whereby phthalic anhydride and reaction water formed continuously distil from the reaction mixture.  In a modification a stream of inert gas is passed through the reaction vessel at a pressure of 1.0-1.5 atmospheres The examples relate to the production of neutral potassium terephthalate and isophthalate mixtures thereof and sodium isophthalate.  In Example 8 the reaction is carried out in a heated ball mill through which carbon dioxide is passed.
Patent GB-1249085-A (GB)
Title: Machine for printing and/or embossing conical cups
IPC: B41F17/28
Filed: 1970-06-15
Abstract: 1,249,085. Printing conical cups; embossing. DART INDUSTRIES Inc. 15 June, 1970 [20 June, 1969], No. 28919/70. Headings B6C and B6J. Paper cups 20 are printed and/or embossed in a machine which comprises a vertical turret wheel having radially located rotatable cup holding means 14 alternating with similarly shaped inking rollers 15. The wheel rotates in a vertical plane within a housing having two vertical doors 17 on one face, each door being partially lined with either an inking pad or a printing plate (or an embossing die) and so disposed that when the doors are shut and the turret is rotating the inking pad transfers ink to the inking rollers which carries the ink to the printing plate which transfers impressions on to the cups as they roll over the plate. Each cup is magazine fed through a vacuum pipe 25 to a holder positioned at the bottom of the turret and is removed after printing through a vacuum tube 34 connecting with a holder positioned at the top of the turret. When used for embossing the inking pad is inoperative.
Patent GB-724053-A (GB)
Title: Improvements in and relating to tables
IPC: A47B13/08
Filed: 1952-11-17
Abstract: 724,053. Tables. WATSON, A. H. V. Nov. 16, 1953 [Nov. 17, 1952], No. 28990/52. Class 52 (3). A table with an invertible top has a rectangular panel 7 enclosed by a frame 6 and with central pivot pins 8 fitting in slots 9, one side 12 of the frame being slidable horizontally and the panel 7 forming tongue and groove joints 11, 12a with the frame. The slide 12 is withdrawn by means of finger pieces 14, the panel rotated 180 degrees and the slide replaced. One face of the panel has a felt facing.
Patent GB-533339-A (GB)
Title: Improvements in filters for vacuum cleaners
IPC: A47L9/12
Filed: 1939-10-30
Abstract: 533,339. Filters and disinfectors for vacuum cleaners. ELECTROLUX, Ltd. Oct. 30, 1939, No. 28995. Convention date, Dec. 19, 1938. [Classes 8 (i) and 8 (ii)] Disinfectant &c to be vaporized is introduced into a double - faced disc filter 16 in a vacuum cleaner casing through an opening in one of its flat faces having a rapid closure such as a zip fastener 21. The whole of the air passes through the filter. The filter area may be restricted, and thus the temperature raised to hasten the vaporization, by inserting a card board between the walls, which may be sewn in.
Patent GB-1199594-A (GB)
Title: Rectractable Locating and Restraining Device for Freight Containers
Inventor: BRAMHILL JOHN
IPC: F16B21/14
Filed: 1967-06-23
Abstract: 1,199,594. Clamps. HOLT WILLIAMS & CO. Ltd: 20 Sept., 19682 [23 June, 1967], No. 29002/67. Heading E2B. A twist-lock fastener 13 for locking a freight container to a transporter is mounted in a retractable plug 14 so that it may be withdrawn into the body 10 when not in use. The fastener spindle has a stepped portion mating with an operating collar 18 mounted on the base plate and rotatable by a lever 37 extending through aperture 38. The lever 37 and collar 18 are held in position by spring 40. The plug 14 has a cylindrical lower portion fitting in bore 11 but its top part is of the same profile as the fastener head 13. It is prevented from rotation by a pin 28 in slot 20. The spindle is retained in the plug 14 by nut 24. Flats 31 on the spindle engage a slot 42 in a turning member 25 26 as well as the operating member 18. When in use, the sides of extension locking member 25, 26 engage projections 29, 30 to prevent retraction. For retraction, arms 26 are turned by 90‹ out of register with projections 29, 30, so that the head 13, 14 may be manually depressed. The lower end of the spindle, then passes through hole 32 in the base of the block, and may be locked at reduced shank 44 by rotation through ,90‹. Alternatively, locking-down may be provided by further abutments, engaging arms 26. Retraction may be achieved by a Z-shaped cam slot in the body 10 instead of manual depression,' or the spindle may be screwthreaded. The device may be right or lefthanded.