baber/WOPTO huggingface dataset:
Patent GB-175345-A (GB)
Title: Improvements in or relating to strainer apparatus for removing solids from liquids
IPC: B01D35/06
Filed: 1920-10-14
Abstract: 175,345. Chapman, E. B. Oct. 14, 1920. Magnetic separators.-Strainers are made of a metal that is permanently magnetized or can be magnetized electrically. Fig. 1 shows apparatus for straining oil comprising cylindrical elements 1, 2, connected to polar members 5, 6, carried by a non-magnetizable cover 7 and protruding therethrough to receive energizing coils 8. The elements 1, 2 can thus be magnetized with opposite polarity. The oil passes through the casing from the inlet 3 to the outlet 4. Fig. 6 shows apparatus with flat strainer plates through which the liquid flows as indicated by the arrows. The apparatus shown in Fig. 7 has additional separate polar members 18 adapted to collect magnetizable matter in a manner analogous to that of the apparatus described in Specification 150,101. The members 18 may be arranged around a central member which is shorter than the others.
Patent GB-1471608-A (GB)
Title: Apparatus in combination with an aircraft for use in the loading and unloading thereof
IPC: B65G67/02
Filed: 1974-07-01
Abstract: 1471608 Platforms for loading aircraft MESSERSCHMITT - BOLKOW - BLOHM GmbH 1 July 1974 [14 Aug 1973] 29158/74 Heading B8E Apparatus for use in the loading and unloading of an aircraft is pivotally attached to the fuselage 4 of the aircraft and comprises a cargo platform 1 and a support therefor, the support consisting of two foldable elongated members 2, 3 which are pivoted at their ends to the fuselage 4 and in their operative condition extend between the fuselage and the ground, each member 2, 3 being divided intermediate its ends into two parts which are pivotally connected at respective points 5, 6, that part of each member 2, 3 which is further from the aircraft in the operative condition of the members being pivotable about the joint 5 or 6 to the folded position shown as 2<SP>1</SP>, 3<SP>1</SP> in Fig. 2, the axes of pivotation being generally perpendicular to the plane which contains the members 2, 3 when in their operative condition, and the folded members 2, 3 can then be rotated into an inoperative condition 7 within the aircraft. The platform 1 is pivoted at 10 to guide means which engages the members 2, 3, and the latter are folded by means of foldable struts 11, 12 in association with a drive mechanism 17.
Patent GB-187975-A (GB)
Title: Improvements in the method of and apparatus for moulding building blocks and tiles
IPC: B28B3/12
Filed: 1922-10-26
Abstract: 187,975. Guy, F., and Davey, M. L., (Assignees of Evans, P.). Oct. 27, 1921, [Convention date]. Building - blocks, special shapes of.-A block, Fig. 20, for forming hollow walls comprises two slabs connected by a bridge portion reinforced by a metal tie. The blocks are faced with colour during the moulding process.
Patent GB-224725-A (GB)
Title: Selective information apparatues
IPC: G09F11/06
Filed: 1923-11-20
Abstract: 224,725. McDonald, L. R. Nov. 20, 1923. Hinged elements, rotary apparatus with; actuating.-In information apparatus in which a number of flexible placards &c. are attached to the circumference of a carrier rotating step-bystep to release in turn the free end of each placard as it passes round the carrier and allow it to fall into display position in front of the previously dropped placard, the normal movement of the carrier may be interrupted and a selected placard brought into display at will. The carrier is located behind a window 2 in a casing 1 and comprises end discs 3, 4 fixed detachably to a shaft 22 and removably supporting, in circumferential notches, bars each attached to one edge of a placard 19. The rim of the disc 3 has half as many teeth 43, Fig. 5, as there are placards, which teeth actuate a counterbalanced pallet 44 secured to a shaft 45 having an upwardly bent extension 46. A slot 48 in a bracket 49 steadies the extension 46, which passes also through an inclined slot in a pivoted arm 51, which is thus given a complete oscillation by the passage of each tooth 43. The free edges of the placards are provided with slightly overlapping steps 20, 21, and each half oscillation of the arm 51 releases a placard. Springs 53 assist in wrapping the placards round the carrier. The carrier is driven intermittently by a motor 60 rotating through worm gearing 62, 63 a head 65 carrying a pin 70, Fig. 9, which at each turn moves the carrier through the distance of one placard by engaging detent-controlled teeth 72 on the disc 4. The manually-operated placard-selecting device comprises a shaft 29 geared one-to-one with the carrier and having fixed thereon a selector plate 30. A loose handle 31 on the shaft 29 carries a preferably spring-pressed pin 34. which can be forced to enter one of a number of holes through the plate 30. The holes are preferably located at the bottom of a series of concentric grooves in the plate 30, and the handle 31 is connected to the shaft 29 by a slot to enable the pin 34 to be brought over any one set of holes. Each hole is marked to correspond with a placard, and when the pin 34 has been pressed through a selected hole, the plate 30 is turned anticlockwise till the rearwardly extending part of the pin 34 comes against a stop 39, in which position the required placard is displayed. To enable the teeth 72 to over-ride the pin 70, Fig. 9, the latter is fixed on a spring-pressed member 67 pivoted at 66 to the head 65 and abutting against a stop 71. To stop the motor 60 when a selected placard is being observed, the pin 34 is made, when up against the stop 39, to close a switch 38 which shortcircuits the motor and also reduces the circuit resistance of an illuminating lamp 76.
Patent GB-617448-A (GB)
Title: Improvements in methods of making aryloxymonocarboxylic acids
IPC: C07C51/48
Filed: 1946-10-01
Abstract: In the manufacture of aryloxymonocarboxylic acids which may be substituted with halogen, alkyl, alkoxy, aryl, amino or nitro groups, the impure reaction product consisting of acid and phenol is melted and run in a thin stream into a selective solvent for the phenol, the pure acid being precipitated.  The selective solvent should be a very good solvent for the phenol, a poor solvent for the aryloxy acid and alkali, capable of readily giving up dissolved phenol and substantially insoluble in water.  As examples of solvents petroleum distillates such as kerosene, gasoline, and Diesel oil are mentioned. In an example an alkaline solution of 2 : 4-dichlorophenol is heated to dryness with monochloracetic acid and the product acidified with aqueous hydrochloric acid and boiled.  Crude molten 2-4-dichlorophenoxy acetic acid which settles at the bottom of the vessel is run off into kerosene and the precipitated acid separated. The kerosene phenol solution is treated with aqueous sodium hydroxide and the phenol and kerosene recovered.  In a similar way the substituted or unsubstituted aryloxymonocarboxylic aliphatic acids (e.g. acetic acid) made by reacting chlorinated aliphatic acids with o- or p-chlorophenol, 2,4,5 or 2,4,6-trichloro-phenol, 2-chloro-5-hydroxy-toluene, 2,4-, 3,4-and 3,5 - dimethyl - phenol, 2 - chloro - 4 - methyl phenol, 2-chloro-4-phenyl phenol, p-chloro-thymol and a  or b -naphthol may be purified.
Patent GB-207532-A (GB)
IPC: F16H55/38
Filed: 1923-11-21
Abstract: 207,532. Koch, W. Nov. 21, 1922, [Convention date Clutches, friction.-The surfaces of pulleys and belts, clutches, and brakes are of such materials that the slip incidental to the drive produces electricity on the adjacent faces, the attraction of which increases the driving grip. The belt may be of leather, and according to the Specification as open to inspection under Sect. 91 (3) (a), the pulley covering may be of manganese dioxide, lead sulphate, and linseed oil, of manganese dioxide, zinc white, and borax, of powdered lead oxide and glycerine, of tar, sulphur, and wax, of casein and water glass, or of shellac and turpentine. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 12687/93, 12970/93, 10747/95, 25073/02, 202/03, 22970/06 and 23620/06.
Patent GB-391151-A (GB)
Title: Improvements in automatic switches for use in telephone or like systems
IPC: H01H67/16
Filed: 1931-10-14
Abstract: 391,151. Automatic exchange switches. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, and SAXBY, R. N., 36, Millersdale Road, Mossley Hill, both in Liverpool. Oct. 14, 1931, No. 29409/32. Divided on 391,123. Drawings to Specification. [Class 40 (iv).] A bi-directional switch has the stepping magnets arranged in the same horizontal plane and all the mechanically operated spring sets in a second horizontal plane. The switch is identical in construction with that described in Specification 391,123, but the claims refer to (i) the use of the vertical magnet to provide rotary release, and (ii) the provision for direct release if release is initiated before rotation of the wipers has been effected and rectangular release if the switch is released at a large stage.
Patent GB-1525797-A (GB)
Title: Pipe connection
IPC: F16L25/12
Filed: 1976-07-15
Abstract: 1525797 Pipe joints K WEINHOLD 15 July 1976 [23 July 1975] 29415/76 Heading F2G A connection between two pipe ends 10,11 is effected by means of a sleeve 14 into one end of which a plug part 10a on the pipe end 10 fits with the interposition of a seal 12 located in a groove 10b, the other end of the sleeve 14 having an interior surface for sealing engagement with a seal 13 located in a groove 11b in a collar 11a formed on the pipe end 11, the collar 11a having a part-spherical outer surface allowing misalignment between the pipe ends 10, 11, this being limited by a flange 14b on the sleeve 14, the assembly being held together by shell parts 15, 16 closed by means of a tensioning lever lock (not shown), the shell parts having flanges 15a, 16a engaging with collars 10c and 14a on the pipe end 10 and sleeve 14. The groove 11b preferably widens in a radially outward direction.
Patent GB-643791-A (GB)
Title: Improvements relating to the production of magnetic records
Inventor: DUTTON GILBERT FARADAY
IPC: G11B5/02
Filed: 1947-11-05
Abstract: 643,791. Magnetic sound-recording apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Nov. 5, 1947, No. 29471. [Class 40 (ii)] [Also in Group XXXIX] A number of magnetic sound records 9 are produced simultaneously from a master record 3 and signals are reproduced from each of the copy records and are compared with signals reproduced from the master record so as to operate a monitoring signal if the signals differ. The master record and the copy records are driven synchronously by a motor 6. Signals picked-up by a reproducing head 1 are fed through an amplifier 13 to the recording heads 14. The comparison between signals reproduced from the master and a copy is made by a rectifier 22 to which the signals are connected in phase opposition. In a modification, Fig. 2, the high and the low frequencies are separately monitored. The rectifier used for highfrequency monitoring comprises two diodes 28, 31 connected so that the potential across 29, 32 together is a measure of the difference in the signals.
Patent GB-445706-A (GB)
Title: Improvements in or relating to the production of effects on fabrics, foils, films, fibres and the like containing cellulose esters or ethers
IPC: D06M15/07
Filed: 1934-10-16
Abstract: Effects are produced on fabrics, foils, films, fibres or the like made of cellulose esters or ethers, by applying to the materials a composition containing an effect material, a cellulose ester or ether thickening agent, and a plurality of volatile solvents for the cellulose derivative in the materials treated, which differ considerably in boiling point from each other.  The thickening agent is conveniently cellulose acetate of low viscosity.  Suitable effect materials are pigments, metal powders, lamp black, charcoal, and fish scale essence, and these are preferably dispersed in the cellulose derivative thickener by kneading in presence of a volatile solvent which is afterwards dried out on a hot roller, leaving them in the form of thin films which may be broken into chips for use as required.  The mixed solvent of the invention preferably contains a low boiling solvent with a medium or high boiling solvent, the boiling points differing by 45--120 DEG  C. or more.  Small proportions of non - volatile solvents or plasticizers may also be present.  When producing effects on pile fabrics, the composition applied should be so viscous as not to reach the bottom of the pile. The following examples are given of compositions for application to cellulose acetate materials: (1) cellulose acetate, acetone, dioxane, resorcinol, benzyl alcohol, and bronze powder; (2) cellulose acetate, acetone, dioxane, resorcinol, and bronze or aluminium powder; (3) acetone, dioxane, resorcinol, and cellulose acetate lacquer chips; (4) cellulose acetate lacquer chips, acetone, diacetone alcohol, benzyl alcohol, and triacetin.
Patent GB-629492-A (GB)
Title: Improved means for use in loosening sugar beet and like roots prior to lifting from the soil
IPC: A01D25/02
Filed: 1947-11-06
Abstract: 629,492. Loosening root-crops. WALLEY, H. L. Nov. 6, 1947, No. 29571. [Classes 6(i) and 6(iii)] A machine for loosening root crops before they are lifted from the ground comprises a tool-bar frame 10, 11 mounted on the power-lift links of a tractor and carrying a pair of sub-soil ploughs 40 pivoted to the frame about vertical pivots 33 so that they may be adjusted laterally during working. The tool-bar frame comprises two parallel beams 10, 11, interconnected by members 19 and by a beam 28 which is extended to carry a seat 30 for an operator who steers the tools by handles 38. The plough beams 32 are pivoted to brackets 34 on the forward beam 11 and are guided in yokes 35 on the rearward beam 10. Working depth is adjustable by wheels 20 mounted on screwed rods 23. A disc coulter 27 precedes the ploughs 40. The tool-bar frame is itself pivoted to the links 42, 43, so as to be laterally adjustable relatively to the tractor.
Patent GB-1391754-A (GB)
Title: Process for the purification of 1,3-dioxolane
IPC: B01D3/34
Filed: 1973-06-21
Abstract: 1391754 1,3-Dioxolane MONTECATINI EDISON SpA 21 June 1973 [22 June 1972] 29595/73 Heading C2C Pure anhydrous 1,3-dioxolane is obtained from raw aqueous 1,3-dioxolane by azeotropically distilling the impure dioxolane in the presence of cyclohexane to give a head fraction, which after condensation separates into a cyclohexane-dioxolane layer which may be recycled and a dioxolane-water layer, and a tail fraction which is an anhydrous dioxolanecyclohexane mixture and is rectified to give pure anhydrous 1,3-dioxolane. In an example, formaldehyde and ethylene glycol are reacted in the presence of sulphuric acid to give a mixture containing dioxolane. The mixture is treated with ammonia and the resulting mixture is rectified and the head fraction having a boiling point of 70-71 C. and consisting of impure aqueous 1,3-dioxolane is treated as above.
Patent GB-1413188-A (GB)
Title: Mounting devices for a blade of a rotary cutting machine
IPC: B26D7/26
Filed: 1973-06-22
Abstract: 1413188 Cutting apparatus MASSON SCOTT THRISSELL ENG Ltd 19 June 1974 [22 June 1973] 29660/74 Heading B4B A rotary drum for a rotary cutting machine comprises a mounting device for a blade 32, Fig. 2, the device comprising an eccentric or cam 35 pivotally mounted on the drum and arranged to bear directly or through a locating or clamping element 34 on a part of the blade to vary the position of the blade in a tangential direction with respect to the drum and means 31 for fixing the eccentric or cam in the desired position of adjustment. As shown in Fig. 2, the blade 32 is formed with a groove 33 in which engages a projection 29 on the clamping element 34. The eccentric member 35 is located in a bore in the clamping element and is formed with a hexagonal head 27; by rotating the eccentric with a spanner the projection forces the blade against a resilient strip 36 located in the drum. A screw 31 is provided for locking the eccentric in the adjusted position. The strip may be secured by adhesive to the blade or a metal or plastics back-up member 37. In the modification shown in Fig. 5 the clamping element is provided with flanges 57, 58 for engagement with a shoulder 46 on the blade 45. When the cutting edge of the blade is re-ground, one or more suitable skims (66), Fig. 6 (not shown), is or are fitted under the knife so that the cutting edge is returned to its correct radial distance and the clamping element is positioned such that one or other of the surfaces of the flanges 57, 58 engages the shoulder.
Patent GB-979833-A (GB)
Title: Electric cable joints
Inventor: EYRE JOHN RICHARD
IPC: B29C57/00
Filed: 1963-07-26
Abstract: 979,833. Insulating cable and wire Joints. STANDARD TELEPHONES & CABLES Ltd. July 26, 1963, No. 29707/63. Heading H2E. A method of jointing electric cables 1, 2 (Fig. 1) having organic thermoplastic insulation, includes the steps of placing a tube 6 of organic thermoplastic material over a bare conductor joint 5 and over a portion of each insulating sheath, then covering only the end portions of the tube 7, 8 with heat-shrinkable thermoplastic material 9, 10, having a higher melting point than the insulating sheaths and the tube 6, and then heating the heat-shrinkable material to cause it to shrink and fuse the ends of the tube with the insulation (Fig. 2). The heat-shrinkable coverings 9, 10 may be in the form of sleeves of irradiated thermoplastic material, which may be polythene. The sleeves have previously been expanded when hot, and cooled such as to retain them in an expanded state. The cable cones 3, 4 are joined by a compression ferrule 5 or by soldering &c. After assembling, the sleeves 9, 10 are gripped by heated plier jaws 11, 12 until they have shrunk to their original dimensions. The pliers are removed, and the molten tube ends 7, 8 and insulating sleeves allowed to cool and fuse. The sleeves and tube may be of polyvinyl chloride. For ease of positioning, the tube 6 is preferably translucent. Instead of the sleeves 9, 10 wrappings of heat-shrinkable thermoplastic tape may be used.
Patent GB-1000555-A (GB)
Title: Improvements in or relating to lifting devices
IPC: B66B9/08
Filed: 1960-08-29
Abstract: 1,000,555. Staircase lifts; catchgear. A. COUSINS. Aug. 10, 1961 [Aug. 29, 1960], No 29708/60. Headings B8H and B8L. A lift mechanism adapted to be mounted on a staircase comprises a platform 3 pivoted about a hinge pin 6 on a bracket 7 which is adjustably mounted about an axis 8 on a carriage 4 provided with pairs of rollers 14 running within a channel-section rail 2. In the operative position of the platform, a roller 5 runs on a rail 1, whilst, in its inoperative position, the platform is pivoted to the vertical position at one side of the staircase, Fig. 2. The carriage is traversed up and down the rails by a winch driven by a reversible electric motor, the winch cable 11 passing round a pulley at the top of the stairway to a spring-urged pawl 15a pivoted on the axle of the lower pair of rollers 14, whereby, if the cable becomes slack, the pawl will be urged downwardly into engagement with pegs 16 on the lower flange of the rail 2. The cable also engages a tension-sensitive switch in the winch motor circuit which is broken if the cable becomes slack. The motor is controlled by a three-position switch 20 on the handle 21 and a low voltage system including a wiper blade engaging a conducting strip countersunk into and insulated from a thrust rail 2d which is mounted on top of the rail 2 and which is engaged by a pair of rollers or sliding blocks mounted on the carriage. Movement of the carriage is arrested at the upper and lower ends of the staircase by limit switches, and over-ride switches may be provided at the top and bottom of the staircase for closing the appropriate motor winding circuit to bring the lift to the upper or lower end of the staircase.
Patent GB-262756-A (GB)
Title: Improvements in or relating to valves
IPC: F16K29/00
Filed: 1926-11-24
Abstract: 262,756. Merco Nordstrom Valve Co., (Assignees of Nordstr÷m, S. J.). Dec. 14, 1925, [Convention date]. Lift valves; grinding valves on seats; leakage, preventing.-In a screw-down lift valve of the globe type having provision for rotating the valve member upon its seating for grinding, the screwed spindle 17 is disposed in a bushing 19 provided at the lower end with an internal flange 21 seating on metal and compressible washers 38, 39 and at the upper end with a securing nut 26 which, when released, allows the bushing to be rotated and with it the valve member 11 upon its seating. The valve seating and the bevelled valve facing are each provided with annular grooves 10. and the spindle is formed with a chamber to contain an abrasive mixture or lubricant which can be forced by a screw 34 along passages 25 into the annular grooves 10. The compressible washer 39 allows a slight separation of the valve closure surfaces through which the abrasive mixture oozes. The lower end of the bushing 19 is provided with a lip portion 36 to coact with a fillet 37 on the valve when fully open so as to prevent leakage along the spindle thereby allowing the packing at 28 to be replaced.
Patent GB-154793-A (GB)
Title: Improvements in baking trays
IPC: A21B1/00
Filed: 1919-11-29
Abstract: 154,793. Herbert, F. E., and Taylor, J. W. Nov. 29, 1919. Baking-trays.-In a tray having a number of openings in which pans are firmly secured, each pan 9 is formed with an external corrugation 10 which engages with the underside of the opening 7 in the tray 5, the pan being secured by pressing or beating down the upper edge 11 to form a flange, which may lie flushed in a dished portion of the tray. The tray is formed with depending flanges, strengthened with metallic strips, forming a rim which maintains the pans out of contact with the oven, and a stiffening- strip is stretched across the underside of the central pans, which act as distance-pieces, and is bolted to the tray.
Patent GB-1513947-A (GB)
Title: Method of and apparatus for opening bales of fibrous material
IPC: D01G7/00
Filed: 1975-07-17
Abstract: 1513947 Pneumatic bale openers H HERGETH [trading as HERGETH KG MASCHINENFABRIK UND APPARATEBAU] 17 July 1975 [17 Aug 1974] 29965/75 Heading D1N A bale is opened by means of suction applied through a suction head 17 and maintained until the suction head is moved to a material discharging position. The suction heads are raised and lowered by rams 19 which are initiated when the suction in the heads reaches a predetermined degree. The heads are mounted on a turntable so they can be swung around to deposit the material on a conveyor 34. Wheels 27 allow the heads to be moved along a row of bales, Fig. 5 (not shown), the conveyor carrying the fibre to a mixed bale breaker. The suction may be generated by a fan on the suction head or a fan on the turntable. The suction air is passed through a filter.