baber/WOPTO huggingface dataset:
Patent GB-892630-A (GB)
Title: Process for welding stretched foils of thermo-plastic artificial materials
IPC: B29C65/50
Filed: 1958-07-25
Abstract: 892,630. Seaming. FARBWERKE HOECHST A.G. July 25, 1958 [July 25, 1957], No.24110/58. Class 42 (1). Films of thermoplastic artificial material, articularly polyethylene and polypropylene, that have been strengthened by stretching are welded at a temperature within the range from the crystallite melting or softening point to about 20‹ C. thereabove while substantially preventing the film from shrinkage so that material orientation and strength are maintained in the heated zone. The seam may be stretched after welding. As shown, Fig. 1, the overlapping edges of foils 1 and 2 are welded by heated dies 5, 6 while restrained by holding members 3, 4. The free ends of the foils can undergo a low degree of shrinkage necessary for the welding process. With the seam constructions shown in Figs. 2 and 3 only one holding member 9 or 15, 16 is necessary.
Patent GB-1477392-A (GB)
Title: Process for making ethylene glycol
IPC: C07C29/15
Filed: 1974-05-31
Abstract: 1477392 Ethylene glycol and methanol from CO and H 2  UNION CARBIDE CORP 31 May 1974 [19 June 1973 15 May 1974] 24140/74 Heading C2C Ethylene glycol and methanol are made by reacting carbon monoxide and hydrogen, in contact with a catalytic amount of rhodium, at 100-375 C. under 500-50,000 p.s.i.a., such that the concentration of ethylene glycol is not allowed to rise above 5 gram moles per litre of reaction mixture and the molar formation rate ratio of ethylene glycol to methanol is not allowed to fall below 0À3. The reaction, may be performed in the presence of an organic diluent, and the invention includes processes in which the ethylene glycol reacts with a reactive diluent to form a derivative of the ethylene glycol.
Patent GB-862697-A (GB)
Title: Improvements in thread or thread chain severing devices for use on sewing machines
IPC: D05B65/00
Filed: 1959-07-15
Abstract: 862,697. Sewing machines. UNION SPECIAL MASCHINENFABRIK G.m.b.H. July 15, 1959 [July 23, 1958], No. 24259/59. Class 112 A thread-severing device for a sewing machine 1 comprises cutter blades 3, 4 pivotable about a common displaceable axis 5 and having arms extending beyond the latter, the end of one arm 6 being pivoted about a fixed axis, and the displaceable end of the other arm 7 being connected to an actuating element. As shown, arm 7 is pivoted to one arm of a bell crank lever 9, the other arm of which is connected by a link 13 to the armature 14 of a solenoid 15. Energization of the latter projects the blades 3, 4 upwardly through an opening 2 in the work support and simultaneously closes the blades. On deenergization of the solenoid, the blades are returned to inoperative position by a spring 16. It is stated that the actuating element may be directly connected to said displaceable end. When the device is incorporated in a suspended machine for sewing up the mouths of closed bags, the blade carried by the arm pivoted about a fixed axis is made larger than the other blade for early engagement of the thread to prevent the latter from falling.
Patent GB-439701-A (GB)
Title: Diaphragm valves
IPC: F16K7/12
Filed: 1934-08-23
Abstract: 439,701. Diaphragm valves. SAUNDERS INVENTIONS Ltd., 98, Beresford House, P.O. Box 6508, Main Street, Johannesburg, South Africa, and SAUNDERS, P. K., 5, Tettenhall Road, Wolverhampton. Aug. 23, 1934, No. 24293 [Class 135] In a diaphragm valve, the diaphragm 20 is provided with a resilient headed projection 19 which is held in an undercut recess 21 in the actuator mem ber. The projection 19 may be forced into the recess when it is made of rubber or similar material, or the actuator member may be made in two parts 12 hinged together and to the spindle 17 by a pin 16 so that by removing the cover 15 and actuating mechanism and moving the actuator outwardly from the cover the members 12 may be moved apart to insert the head 19 in the recesses thereof. The outside surfaces of the members 12 are shaped so that when withdrawn into the cover 15 they are caused to move together by contact with the cover to grip and compress the head 19. Specifications 362,084 and 434,665 are referred to.
Patent GB-481558-A (GB)
Title: Improvements relating to the winding or unwinding of spools of wire, cord, yarn and other materials
IPC: B65H54/54
Filed: 1936-09-05
Abstract: 481,558. Winding or unwinding spools of wire, yarn, &c. BRITISH INSULATED CABLES, Ltd., ROBERTSON & CO., Ltd., W. H. A., RICHARDS, S. H., and CLEMENTS, W. J. Sept. 5, 1936, No. 24297. [Class 120 (ii)] Spools of wire, cord, yarn, or other material are readily mounted or dismounted in machines by arranging two tapered supporting- centres 2, 3 so that they are simultaneously moved in opposite directions by lever-and-link mechanism 4, 5, 6, whereby the spool may be deposited upon or raised from an adjustable supporting-tray 11. As shown, the spool is adapted to be driven for winding, the centre 3 being driven by a pulley 7 and provided with a driving-disc 8. The Provisional Specification comprises an arrangement wherein one centre only is movable.
Patent GB-243343-A (GB)
Abstract: 243,343. Baumgõrtner Dr. Katz & Co. Ges. Nov. 24, 1924, [Convention date]. Moulding pulp.-In moulding pulp within pervious moulds by the aid of a gaseous pressure medium, the pulp is supplied through a preliminary container capable of being shut off from the mould and, after being forced into the mould, is subjected to the action of a gaseous heating medium which does not pass through the container. As shown, pulp enters through a valve a, a preliminary container b<2> adjustable in size by a piston f, and is forced into the mould d through a valve c either by gaseous pressure admitted through a valve i<2> or by the piston f. After deposition, the valve c is closed and a gaseous heating medium admitted by a valve e. Residual liquid may be removed from the mould through a pipe k and valve l. Specification 206,411 is referred to.
Patent GB-475783-A (GB)
Title: Wear resisting edge for skis
IPC: A63C5/048
Filed: 1937-09-07
Abstract: 475,783. Skis. KIELLAND, J. DE R. Sept. 7, 1937, No. 24440. Convention date, Sept. 8, 1936. [Class 132 (i)] A wear-resisting edge for skis comprises a metal ribbon 1 fitting into a lateral groove in the ski material 3 and having a substantially S- or Z- shaped profile with two substantially parallel edge members interconnected by a transverse member, the metal ribbon being held in position by a wood strip 2 or the like, the bottom surface of which engages the lower part of the metal ribbon while the upper surface is provided with a longitudinal substantially nose-shaped rib 7 adapted to fit into a correspondingly-shaped groove in the ski material.
Patent GB-1184545-A (GB)
Title: Filing Laces and the Manufacture Thereof.
Inventor: LUDLAM JOHN ALFRED
IPC: B42F13/04
Filed: 1966-05-13
Abstract: 1,184,545. Injection moulding. FAIRE BROS. & CO. Ltd. 12 May, 1967 [13 May, 1966; 1 June, 1966], Nos. 21432/66 and 24469/66. Heading B5A. [Also in Divisions A3 and E2] A method of manufacturing filing laces with tranverse end tags comprises passing a cord 3 through a passage in each half of a mould, injecting plastics material from a nozzle 6 in an inlet channel 1 into two passages 2 communicating with the passages for the cord, displacing a mould half, advancing a length of cord, replacing the mould half and moulding a further pair of tags. The operations are repeated and may be automatic. By providing the mould with a series of passages tags are moulded to a number of lengths of cord. A single tag or a pair of tags on the ends of one length of cord may be moulded at each injection.
Patent GB-395183-A (GB)
Title: Improvements in the manufacture and production of stable reduction products of dyestuffs of the indigo series
IPC: C09B67/28
Filed: 1932-09-02
Abstract: Stable indigo preparations.--Stable reduction products of halogen derivatives of indigo, indirubin and their homologues are prepared by heating the leuco compounds of the dyestuffs wholly or substantially in the free form, dispersed in aqueous or water-containing media until the leuco-compounds are converted wholly or substantially into compounds which are difficultly soluble or insoluble in cold aqueous solutions of caustic alkalies.  The dyestuffs may be reduced in alkaline, neutral or acid media, and the free leuco compounds heated simultaneously or subsequently or after isolation either alone in aqueous or water-containing media, or with acid agents; further organic solvents may be present.  The products may be obtained in one operation by reducing in the absence of alkalies, or in the presence of smaller amounts than are required for forming the mono-metallic salts of the leuco compounds, heating being continued until conversion is complete; a normally alkaline reducing bath is acidified by adding acids or acid salts, and the mixture then heated; a strongly acid solution is to be avoided. In examples (1) 5,5<1>:-7,7<1>-tetrachlorindigo is boiled in alcohol with ammonium formate and sulphur dioxide until a stable reduction product separates out; (2) 5,5<1> : 7,7<1>-tetrabromindigo is heated in aqueous-alcohol with sodium hydrosulphite, and after reduction the solution is boiled; or the dye is treated in very dilute alkali solution in presence of a nickel catalyst with hydrogen under pressure at about 90 DEG  C.; or the dehydroacetate derivative is boiled in alcohol with ammonium formate and bisulphite solution; (3) 5,5<1>-dibromindigo is heated in dilute alkali solution with sodium hydrosulphite at 60 DEG  C., and sulphur dioxide is passed in to precipitate the free leuco-compound which is then boiled in alcohol with exclusion of air and in presence of bisulphite; (4) tribromo-Indigo red and 4,4<1>-dichloro-5,5<1>-dibromindigo are treated as in (1); (5) 5,5<1>-dibromo-7-7<1>-dimethylindigo is reduced in alcohol by sodium hydrosulphite at 55 DEG  C. and the solution boiled; 4,4<1>-dichlorindigo is similarly treated, the products thus obtained are stable in air and may be dried without special precautions; they dissolve in hot alkali solutions and in cold alcoholic alkali solutions to give the ordinary leuco-compounds into which they may also be converted by steaming (when worked up as printing pastes).  Specifications 18023/08, [Class 2, Acids and salts, Organic &c.], 19848/14, 299,899, and 309,970, [all in Class 2 (iii), Dyes &c.], are referred to.  The Specification as open to inspection under Sect. 91 relates to a heat treatment of leuco compounds of halogenated dyestuffs of the indigo series to give stable reduction products, but this subject-matter does not appear in the Specification as accepted.
Patent GB-598870-A (GB)
Title: Improvements in or relating to pistons for internal combustion, steam and other engines
IPC: F16J9/00
Filed: 1945-09-21
Abstract: 598,870. Pistons. MADSEN, T. Sept. 21, 1945, No. 24511. [Class 122 (i)] An engine piston is composed of a central part A fixed to the piston rod 18 and a sealing part B concentrically surrounding the part A and built up of intermediate rings 3 bolted together by studs 5, the sealing part being detachable as a unit from the fixed part A to which it is secured by bolts 7 engaging its lowest ring 3 which rests on a flange 9 on the part A. A top ring 2 co-operates with a protection plate 12 to form the top of the piston and may be integral with the plate. Packings 11, 13, 14 may heat insulate the exposed parts and an air space 10 be provided between the parts A and B.
Patent GB-1217873-A (GB)
Title: Improvements in or relating to composite filter plugs and their manufacture
IPC: A24D3/02
Filed: 1968-05-23
Abstract: 1,217,873. Tobacco smoke filters. MOLINS MACHINE CO. Ltd. and D. W. MOLINS. 22 May, 1969 [23 May, 1968], No. 24556/68. Heading A2C, Composite filter rod comprising alternate filter plugs 2 and granular material enclosed in a wrapper which is at least partly airpervious is strengthened by the provision of an outer wrapper. A suction box 11 over which the pervious wrapper 3 passes assists the delivery of the granular material from pockets 10 in a rotary wheel 9, and the outer wrapper 4 is introduced over a pulley 7. A subsequent station of the apparatus has a garniture tape 5 where the two wrappers are folded simultaneously or successively and overlapped and sealed to enclose the plugs and granular material. Alternatively, the inner wrapper may not be sealed, or the edges of the outer wrapper may be butted instead of overlapped, or the width of the outer wrapper may be insufficient for its edges to butt. The inner wrapper may be preperforated, or perforated in the apparatus before reaching the wheel 9 as in Specification 1,106,931, or it may consist of porous paper. The invention is applicable also to the production of individual lengths of composite filter rod as distinct from continuous rod.
Patent GB-812725-A (GB)
Title: Improvements in the production of hot-pressing quality naphthalene
IPC: C07C7/14
Filed: 1956-08-10
Abstract: In the production of hot-pressing quality naphthalene from naphthalene oil by cooling to crystallize at least part of the naphthalene, passing through a worm press having apertures through which oil is discharged, collecting the oil in at least two fractions the first being obtained nearer the inlet than the second and being comparatively poor in naphthalene but rich in thionaphthene, the second being rich in naphthalene and recycling the second fraction to the starting naphthalene oil, the first fraction is cooled to form crystallized naphthalene solidifying at about 68 DEG  C. and a low naphthalene content oil solidifying below 25 DEG  C. the solidified naphthalene is melted and recycled with the second fraction.  The chilling of the first fraction is preferably performed batchwise but may be done continuously and the solid and oil separated by centrifuging.  The solid may be washed with a selective solvent to remove adhering oil before melting.  Specification 766,371 is referred to.
Patent GB-1136664-A (GB)
Title: Medical dressing
IPC: A61F13/00
Filed: 1966-06-02
Abstract: 1,136,664. Surgical dressings. DOW CORNING CORP. 2 June, 1966 [7 July, 1965], No. 24673/66. Heading A5R. A medical dressing comprises a liquid-tight sealed envelope containing a silicone liquid in which is freely suspended a quantity of absorbent material, the quantity of liquid being in excess of that which can be absorbed by the absorbent material so that there is a pool of liquid in the envelope. The envelope may be made of a plastics material, for example polyethylene. The absorbent material may be sponge-like or fibrous, for example absorbent cotton. The silicone liquid may be an endblocked dimethylpolysiloxane, for example trimethylsiloxy-end-blocked dimethylpolysiloxane of formula (CH 3 ) 3 SiO[CH 3 ) 2 SiO] x Si(CH 3 ) 3  where x is a number such as to give the liquid a viscosity of 100 centistokes. The silicone liquid may contain unspecified medicinal agents. In use of the dressing, for example in the treatment of burns, the envelope is opened at one end and the injured body portion is inserted into the envelope, the opening of which then may be sealed by adhesive tape to an adjacent part of the body; for treatment of a hand injury, the absorbent material is squeezed for exercise and to promote circulation and filtration of the liquid through the absorbent material.
Patent GB-200407-A (GB)
Title: Sash operating mechanisms for windows
IPC: E05F11/42
Filed: 1922-09-12
Abstract: 200,407. Chamberlain, C. P. Sept. 12, 1922. Sliding window opening and closing apparatus. A window opening and closing device comprises a fixed rack 26 and an engaging pinion 8, which is axially mounted on a travelling nut on the rotatable screw 11, and has an integral arm 7 engaging a slide on the bottom sash. The screw is rotated by bevel gearing operated by a handle and it rests on a ball which bears on a spring- pressed plate in a bracket in the well. A counterbalancing spiral spring 41 acts on the pinion 8.
Patent GB-682661-A (GB)
Title: Improvements in and relating to door fittings for motor vehicles
IPC: E05F5/02
Filed: 1950-08-28
Abstract: 682,661. Door stops. MULLINER & CO., Ltd., H. J., and WATTS, S. J. Aug. 28, 1950, No. 24717/51. Divided out of 682,634. Class 65 (i) A device for preventing rattle in a vehicle door comprises a tapered wedge member 10 adapted to be secured to an edge of the door, and a member 1 adapted to be secured to the fixed frame and provided with a dovetail recess engageable by the wedge member when the door is closed; one surface 5 of the recess being formed with a V-shaped groove 15 for receiving a V-shaped rib 14 formed on an edge 13 of the wedge member, and the other surface 7 of the recess being the edge of a block 6 biased outwardly by a spring 9.
Patent GB-389463-A (GB)
Title: A vacuum electric switch
IPC: H01H33/66
Filed: 1931-09-04
Abstract: 389,463. High-tension switches. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Sept. 4, 1931, No. 24883. Convention date, Sept. 6, 1930. [Class 38 (v).] Electromagnetic switches; bases; contacts; pneumatic blow-outs.-To produce a homogeneous field about the contacts of a vacuum switch in the open position thereof, the contacts are surrounded by protective annular bodies having surfaces which form a continuation of the parallel surfaces of the opened switch contacts, the potential distribution among the bodies always coinciding with the potential existing in the switch. The' movable contact 9 is operated to the open position by a solenoid 12 and plunger 11 which is guided in a non-magnetic tube 13. Insulating rings 5, 18 lie between the metal plates 1, 2 so as to form a vacuum-tight case, and a further covering plate 14 is also. provided. Ring- shaped conducting bodies 15, 16, 17 are provided within the casing such that the electric field is rendered uniform, and the plates 1, 2 are made of large diameter compared with that of the rings 5, 18 to render the field in the latter uniform. A counter-contact may also be provided having its contact surface flush with that of the plate 2, and means may be provided for maintaining the quality of the vacuum. To prevent the formation of ion avalanches at the points 20, further filling bodies, which are mutually insulated, may be arranged in the broadened spaces between the outer edges of the rings.
Patent GB-1175648-A (GB)
Title: Conveyor Arrangements
IPC: B65G17/12
Filed: 1968-05-24
Abstract: 1,175,648. Endless conveyers. INVENTIO A.G. 24 May, 1968 [24 May, 1967], No. 24939/68. Heading B8A. Trays 7 on carriers 6 mounted between a pair of endless driven chains 2, 3 are off-loaded by platforms 12 movable by a parallelogram linkage 34, 35 between a position remote from the carrier and an interdigitating position in the path of the carrier. Disposed along the carrier path and engageable by a rod 6.1 carried thereby are two pairs of contacts 46.1, 46.2, and 47.1, 47.2 connected in a circuit, Fig. 3 (not shown). The respective pairs of contacts are spaced apart and the length of the rod 6À1 is such that the path of the carrier adjacent to an off-loading station is divided into four zones wherein in zone 1 the approach of a tray 7 is detected by a photo-electric device 49 which reads a destination code on the edge 7À1 of the tray. The code comprises surfaces which are rotatable between reflective and non-reflective positions. If the code corresponds to that of the discharge station a motor 41 is started to move the platform from its remote position into the path of the carrier. Contacts 46.1 and 47.1 are closed. In zone II contact 46.1 opens to prevent initiation of the movement of the platform, if this has not taken place, and contact 46À2 closes to maintain any motion of the said platform until the same reaches its interdigitating position whereupon switch 40 is closed and switch 38 is opened to stop the motor 41. In zone III contact 47.1 is opened to break the hold circuit for a relay (53), Fig. 3 (not shown), whereby if the platform has failed to reach its extreme position the relay circuit is broken and the chains 2, 3 stopped. The tray is transferred in zone III. In zone IV contacts 46.1 and 47.2 are closed to effect reversal of the motor 41 to withdraw the platform until limit switch 37 is opened to stop the motor and thus complete the cycle. An arm 27À5 deflectable by a tray 7 on a platform into engagement with a feeler rod 6.2 of an approaching carrier will open a safety switch 27 and stop the chains 2, 3 should the platform for some reason already be loaded with a tray. The platform comprises parallel sets of rollers 12 inclined downwardly away from the carrier, so that trays thereon abut a stop 44. The stop is releasable by a lever 45 on arrival of the platform at its remote position to allow the tray to be delivered to further inclined rollers 32. The loading of the trays on to the carriers is similar to the above except that the platforms are downwardly inclined towards the carriers, which carrier is moving in the opposite direction. Pairs of contacts 28.1, 28.2 and 29.1, 29.2 are engaged in similar fashion by the carrier as it passes through the four zones to synchronize the movement of the platform 12 to that of the carrier 6. A safety switch 26 mounted on the platform and actuated by a loaded carrier breaks the drive circuit and stops the chains 2, 3.
Patent GB-811727-A (GB)
Title: Improvements in or relating to control valves
IPC: B25D9/14
Filed: 1955-08-31
Abstract: 811,727. Portable drilling machines. ARO EQUIPMENT CORPORATION Aug. 31, 1955 [Dec. 20, 1954], No. 25002/55. Class 83 (3). [Also in Group XXIX] In a pneumatic drill 10, a valve for controlling the supply and exhaust of compressed-air to and from a double-acting reciprocating motor 12, Fig. 1, and a rotary-vane motor 16, to feed and rotate the tool 18 respectively, comprises a valve-spool 22, Fig. 2, slidable in the bore 24 of a casing 14 on the end of the motor cylinder 12, valves 26, 28 manuallyoperable to vent end-chambers 38, 40, respectively of the bore 24, and a valve 30, operable on the piston 70 reaching the end of its forward stroke, to automatically reverse the piston. Air admitted to the port 56 passes to a chamber 64 to move the piston forwardly, and through the bore 68 of the piston-rod to rotate the vanes of the motor, whilst air admitted to the port 54 passes through a duct 58, annular groove 60 and a duct 62 to a chamber 72 to return the piston.
Patent GB-814020-A (GB)
Title: Cellulose acetate tapes and magnetic recording tapes produced therefrom
IPC: G11B5/73
Filed: 1956-08-16
Abstract: A tape having improved dimensional stability and high strength is prepared by stretching a tape, having a basis of cellulose acetate of combined acetic acid content of 60 to 62 per cent, beyond its elastic limit, e.g. by 15-25 per cent or until the yield point of the material is within 5 per cent of its breaking strength, preferably at an elevated temperature, e.g. 60 to 100 DEG  C., and allowing the tape to cool while in the stretched condition.  The tape may be made by casting a solution of the cellulose acetate and a plasticizer in a mutual solvent, e.g. methylene chloride, alone or in admixture with a lower aliphatic alcohol, e.g. methanol, ethanol, propanol, butanol, or a mixture thereof, on a suitable surface, e.g. a casting wheel, allowing the solvent to evaporate and stripping the film from the surface. Suitable plasticizers, which may be present in a proportion from 10 to 20 per cent by weight of the cellulose acetate, are triphenyl, trichlorethyl or cresyl diphenyl phosphate, or dibutyl or dimethoxyethyl phthalate.
Patent GB-1116254-A (GB)
Title: Weldable high tensile strength steel capable of giving weld heat-affected zone having high toughness and joint strength
IPC: C22C38/04
Filed: 1965-06-15
Abstract: A weldable high strength steel has the following percentage composition: -  .C.not more than 0.11 .Si.0.1 up to 0.75 .Mn.more than 1.2 up to 2.5 .Cr.0.1 up to 1.5 .Mo.more than 0.3 up to 0.8 .V.0.02 up to 0.15 .Al.0.003 up to 0.2 .Fe.the remainder The steel may also contain: -  .Ni.up to 1.5 .Ti.up to 0.1 .B.up to 0.006 .Cu.up to 0.5