baber/WOPTO huggingface dataset:
Patent GB-938200-A (GB)
Title: Process for the isomerisation of unsaturated hydrocarbons
IPC: C07C5/54
Filed: 1962-02-15
Abstract: Olefins are isomerized in the presence of manganese iodide The catalyst may be supported on a carrier, e.g. pumice, silica, alumina, magnesia or silica-alumina, and reaction is effected at 300 DEG -700 DEG C.  The olefin may be formed in situ by dehydroiodination of an alkyl iodide or by dehydrogenation of an alkane in the presence of iodine and optionally oxygen, in which case the manganese iodide may also be formed in situ by reaction of the hydrogen iodide formed and manganese oxide, hydroxide, carbonate, bicarbonate or oxyiodide.  The olefin formed by isomerization may also be dehydrogenated in the presence of iodine to a diolefin; optionally oxygen is added, and/or a hydrogen iodide binder (e.g. manganese oxide or other compound) or oxidizer (e.g. molybdenum oxide) or a material which catalyses the dissociation of hydrogen iodide.  Butene -1 or -2 may be converted to isobutene and vice-versa, isobutane may be dehydrogenated to isobutene, isomerized and further dehydrogenated to butadiene. Specification 895,500 is referred to.
Patent GB-109751-A (GB)
Title: Portable Support for Cameras.
Inventor: LANDIS GEORGE
IPC: G03B29/00
Filed: 1917-04-26
Abstract: 109,751. Landis, G. April 26, 1917. Small-arms combined with cameras. - Consist in adjustably mounting a camera upon the barrel of a gun, the shutter being operated from the trigger by a wire 13, Fig. 1, or bulb 30, Fig. 4. In the form of support shown in Fig. 1, slotted straps 7 attached to the camera case are clamped between the straps 10 of circular bands 9 fitting over the barrel and separated therefrom by felt sleeves. Alternatively, an arc-shaped slot 20, Fig. 4, may be formed in a single strap 17.
Patent GB-103916-A (GB)
Title: Improvements in Buoyancy Varying Devices for Torpedoes and Torpedo Practice Heads.
Inventor: ASBURY DORSEY FROST
IPC: F42B19/42
Filed: 1916-04-25
Abstract: 103,916. Asbury, D. F. April 25, 1916. Torpedoes, locomotive.-Relates to buoyancy-varying devices for torpedoes, and more especially for practice-heads for torpedoes, in which the sinking of the torpedo to a predetermined depth causes automatic disengagement of one or more weights, and consists in using a weight made up of small pellets, and in means whereby the weight is also released on impact. A practice-head comprises an outer shell 12, Fig. 2, secured to the body 10 by a ring 13 and screws 14, and an inner shell B, the space between the shells forming a liquid reservoir 15 The inner shell comprises a front portion 17, an intermediate portion 16, and an aft portion 18, the portions 17, 16 being secured together by a binding-wire 19, and the portions 16, 18 by flanges 20 and a protecting-ring 21. The inner shell B is filled with buoyant material C, such as cork. The intermediate portion is fitted with a cross-tube 24, within which is arranged a container 26 for the releasable lead pellets 43. The inner end 27 of the container has secured thereto a casing 31 containing a collapsible diaphragm 30, and has openings 28 normally closed by disks 29 secured to the part 27 by means capable of being ruptured by a predetermined pressure. Slots 32 are provided in the casing 31 for admitting liquid to act upon the diaphragm. The lower end of the container is closed by a head 38 having a central opening 39 and a transverse groove 40, within which are pivoted two catches 41 adapted to engage a shoulder 42 on the inner wall ot the container, and at their inner ends to engage a head 36 on a rod 35 attached to the diaphragm. In operation, pressure due to depth of immersion acts upon the diaphragm by way of passages 39, 40, 32 and raises the rod 35, thereby releasing the catches 41 and allowing the head 38 and lead pellets to leave the torpedo, or impact of the head upon a target increases the pressure of the liquid in the reservoir 15, which, in turn, ruptures the disks 29 and acts upon the diaphragm. The outer shell carries the usual calcium-carbide pot 44 which serves as a tracer.
Patent GB-751387-A (GB)
Title: Improved device for mounting a conical yarn winding tube on the spindle of a winding frame
IPC: B65H75/24
Filed: 1954-03-01
Abstract: 751,387. Winding yarn. ALGEMENE KUNSTZIJDE UNIE, N.V. March 1, 1954 [April 29, 1953], No. 5965/54. Class 120 (2). A device for mounting a conical tube 10 on a yarn-winding spindle 1 comprises a tubular body 2 formed with spring-fingers 5 fixed to the spindle, a finger-spreading device 8 normally pressed by a spring 9 into finger-spreading position in which they grip the inside of the tube 10, but movable by a bar 15 and pin 16 to an inoperative position in which the fingers 5 release the tube 10, and a sliding centring bushing 11 spring-urged at 12 to hold the smaller end of the tube 10. The fingers are preferably provided with teeth 7, interrupted circumferentially, and the body 2 is provided with an abutment 19. In the modification of Fig. 3, the device 8 is formed integrally with a spring-urged plunger 20 slidably supported on the spindle 1.
Patent GB-466972-A (GB)
Title: Improvements in or relating to pen nibs
IPC: C22C5/04
Filed: 1936-02-28
Abstract: Pen-nibs are made from alloys consisting of over 50 per cent of palladium, 5-20 per cent of copper, and 5-44 per cent of silver. In making the alloys, 0,005-0,5 per cent of phosphorus, preferably in the form of copper phosphides, may be added.  The nibs may be plated with gold or rhodium.
Patent GB-1533161-A (GB)
Title: Patenting process and equipment
IPC: C21D1/19
Filed: 1976-02-17
Abstract: 1533161 Patenting process DECEMBER 4 DROTMUVEK 17 Feb 1976 [20 Feb 1975] 06071/76 Heading C7N  Steel wire 1 from a wire drawing drum 8 is tangentially fed on to the smaller diameter of a stepped drum 2 freely rotating or driven in an electrically conductive patenting medium contained in a two-tank system 5, 7. After some turns, the wire 1 is unwound and fed to a guide drum 3 outside the patenting medium and returned to the larger diameter of drum 2, on which it is wound for a number of turns before unwinding to a shaping element 9 and then rewound on a further drawing drum 8. Drums 2 and 3 are connected to an electrical supply so that the wire is heated by a current during its passage from drum 2 to drum 3 and back to drum 2, and since there is a difference in diameter between the two parts of drum 2, the wire is elongated in its travel. Thus the process both elongates and heat-treats the wire simultaneously. Since the patenting medium is electrically conductive, the voltage may be applied between the medium and drum 3. The two tank system 5, 7 in which the medium is contained may be externally heated to say 500‹C so that the patenting process may be carried out; the heated medium being pumped from tank 5 to tank 7 by a pump (6) Fig. 1 (not shown). The electrical supply may be two, three or multiple phase.
Patent GB-746034-A (GB)
Title: Improvements in or relating to rope leads
IPC: B63B21/04
Filed: 1953-03-05
Abstract: 746,034. Fairleads. MILLER & SONS, Ltd., J. N., and MILLER, W. P. March 4, 1954 [March 5, 1953], No. 6102/53. Class 78 (5). A rope lead comprises a davit arm 1, a crossarm 2 fastened to the davit arm, and brackets 3 each with an attendant rope sheave 4, said brackets being pivoted to the crossbar and each rope sheave being counterbalanced at 5 about the pivot of the associated bracket. As shown, the davit arm has a square spigot 8 engageable in socket 9 of platform 10 and the rope sheaves 4 are pivoted at 6 to brackets 3 and lockable in position by nuts 7.
Patent GB-549306-A (GB)
Title: Improvements in the manufacture of keto-alcohol acetates
IPC: C07C69/12
Filed: 1941-05-13
Abstract: 549,306. Keto-alcohol acetates. ROCHE PRODUCTS, Ltd., and BERGEL, F. May 13, 1941, No. 6192. [Class 2 (iii)] Keto-alcohol acetates are produced in one operation by decarboxylation and acetylation of lactones of the type in which R is an alkyl, aralkyl or aryl group, by heating the lactone with glacial acetic acid and anhydrous sodium acetate, or sodium acetate containing acetic acid of crystallization. In examples, γ-aceto-propyl acetate is made from α-aceto-γ-butyrolactone and γ-benzoylpropyl acetate from α-benzoyl-γ-butyrolactone.
Patent GB-608037-A (GB)
Title: Improvements in or relating to distillation method and apparatus
IPC: B01D1/00
Filed: 1945-03-13
Abstract: <PICT:0608037/III/1> In a thermo-compression evaporation-distillation system in which the vapour compressor is driven by an internal-combustion engine, and heat derived from the engine cooling circuit is used in the system, the distillation is started up by directing the liquid used in the engine cooling circuit, or vapours derived therefrom, into the vapour space of the system either directly or indirectly through a coil.  Evaporator 10, connected by suction line 12 to compressor 11, contains a heat-exchanger 13 in communication with the discharge side of the compressor by means of line 14.  The compressor is operated by internal-combustion engine 19 which is cooled by circulating a liquid through a jacket 28 around the combustion walls.  The mixture of liquid and vapour formed in the jacket passes through line 30 into separator 31 from which the vapour is passed into the vapour space of evaporator 10 through line 49 controlled by valve 50, while the liquid is returned to the jacket. The vapour may alternatively be introduced into the suction line 12 or into the pressure line 14.  Make-up cooling liquid is introduced into the separator through line 33.  The vapour heats the solution in evaporator 10 either directly or indirectly by circulation through coil 60, and is assisted by the compressor which in starting up is operated with valve 48, in byepass line 47, open, so that air and vapour withdrawn from the evaporator are compressed and returned directly thereto.  The solution may also be heated by circulating it through line 92, coil 95 situated in separator 31, and line 96.  As soon as the solution in the evaporator boils, valves 50 and 48 are closed so that the evaporator is heated solely by compressed vapour entering heat-exchanger 13.  The feed, which flows through line 23 and is preheated in heater 36 by condensate withdrawn from heat-exchanger 13, is then allowed to enter the evaporator and normal thermo-compression evaporation operates.  The feed may also be preheated by passing it through a coil 52 in the separator 31 which can be connected either in series or in parallel with preheater 36. In another embodiment, the engine cooling liquid, instead of vapour, is used to initiate distillation.  The liquid is either passed through a coil in the evaporator, or passed through an external heat-exchanger through which the solution to be raised to boiling is circulated.  Finally, the solution itself may be circulated through the engine jacket and evaporator until its temperature reaches boiling point.  Specifications 512,657, 536,371 and U.S.A. Specification 2,280,993 are referred to.
Patent GB-562536-A (GB)
Title: Improvements in elevating or conveying devices for grass and the like
IPC: F26B17/00
Filed: 1942-11-20
Abstract: 562,536. Drying grass &c. NEWMAN, J. E. and KENNEDY, D. S. Nov. 20, 1942, No. 6477/44. Divided out of 561,534. Drawings to Specification. [Class 34 (ii).] :[Also in Group XXX] In grass drying apparatus, the :grass is elevated along a slotted guide by prongs on parallel bars mounted on an oscillated framework as described in Specification 561,534.
Patent GB-998063-A (GB)
Title: Process and apparatus for the extrusion of fusible polymers
Inventor: BENTLEY WILLIAM ELDERKIN
IPC: B29C48/92
Filed: 1963-02-18
Abstract: 998,063. Extruding polymers; melt spinning. E. I. DU PONT DE NEMOURS & CO. Feb. 12, 1964 [Feb. 18, 1963], No. 6538/63. Headings B5A and B5B. Fusible polymers are formed into filaments, films, tubing &c. by extrusion while molten, through a screw extruder maintained at a suitable temperature, in which they are continually kneaded, the polymers passing through a vacuum degassing zone, in which volatile matter is continually removed through a vent port to regulate the relative viscosity, then through a superatmospheric pressure zone and finally out through the shaping means, e.g. a die or spinneret, the pressure in the pressure zone being continually measured and the polymer feed rate to the extruder and the extruder screw speed, both being continually regulated in proportion to said pressure to maintain the pressure constant. Suitable polymers include nylons (polyamides), polyesters (e.g. polyethylene terephthalate), olefins (e.g. polyethylene, polypropylene), vinylons (e.g. polyvinyl chloride), polymethyl methacrylate, cellulose acetate, polyxoymethylene polymers and co-polymers and mixtures of the polymers. Additives such as anti-oxidants, antistatic agents, stabilizers, colouring agents, filament surface rougheners, fillers, dye assistants, plasticizers and lubricants may be added through inlet ports upstream of the vacuum zone. The polymer is fed by pneumatic conveyer 2 from drum 1 to hopper 3 and into the inlet of the twin screw conveyer 4 in which it is intensively kneaded and passed through a vacuum zone created by steam jets 5, the volatiles passing out through parts 6, 7, 8, thus effectively regulating the relative viscosity of the polymer which then passes through a superatmospheric pressure zone to the transfer line 9 and spinneret 10 (or die). Pressure detector 13 measures the pressure in the superatmospheric zone and deviations from the preset value are transmitted from pressure regulator 15 to screw speed regulator 18 and feed speed regulator 17 to act to restore the pressure to its correct value. A further control over the extrusion conditions may be provided by measuring the pressure at a spinning block pump at the spinneret 10 and adjusting the degree of vacuum in the vacuum zone by suitable control means such that the differential pressure between the pressure zone and the spinning block pump is maintained constant. Specifications 687,021 and 755,069 are referred to.
Patent GB-546738-A (GB)
Title: Improvements in or relating to control circuits for vapour electric discharge devices
IPC: H02M1/02
Filed: 1941-05-23
Abstract: 546,738. Converting. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 23, 1941, No. 6631. Convention date, July 19, 1940. [Class 38 (ii)] In a polyphase converter comprising valves 4 of the immersion-ignitor type, saturable reactors 14 are inserted between the ignition electrodes and the transformer 9 supplying control current whereby the wave form of the ignition current is distorted to peaked impulses. Auxiliary rectifiers 17, 18 are connected as shown so that only impulses of positive polarity are applied to the control electrodes. In a modification, Fig. 2 (not shown) condensers are connected in series with the saturable reactors 14, and the anode shields 7, instead of being connected to the anodes as shown, are connected to tappings on the transformer supplying control current.
Patent GB-128528-A (GB)
Title: Improvements in Shoe Trees.
Inventor: MURRAY RICHARD
IPC: A43D3/14
Filed: 1919-03-17
Abstract: 128,528. Murray, R. March 17, 1919. Trees and stretchers.-The rear portion, consisting of a heel piece e, Fig. 1, and toggle levers d<4>, d, is connected at c<6> with a part c, Fig. 5, slid-. ing within a casing a carrying the front portion. The part c carries a pivoted pawl f arranged to engage a rack b attached to the part a, and the rack and pawl can be set according to an indicator c<5>. The forward part of the tree consists oi spring extensions h, Fig. 1, carried on levers g, g<2> pivoted to the casing a.
Patent GB-109591-A (GB)
Title: Improvements in Safety Devices for Relieving Strain in Machinery.
Inventor: JOHNSON JAMES YATE
IPC: F23K3/00
Filed: 1916-11-22
Abstract: 109,591. Johnson, J. Y., (American Engineering Co.). Nov. 22, 1916. Breaking-pieces for relieving strain. - A breaking-piece which breaks under excessive tension is headed at each end and is dropped into recesses in the two parts to be connected ; several such breaking-pieces may be employed to connect two parts. The invention is shown applied to the feed-hopper of a mechanical stoker such as described in Specification 109,539. The connecting- rod 7 is connected by a pin 6 to two blocks 5, Fig. 4, which are connected by the headed breaking-pins 14 to two blocks 11, Fig. 3, fixed on the end of the plunger 3. The pins 14 are dropped into corresponding recess 9, 12 in the blocks 5 and 11.
Patent GB-882175-A (GB)
Title: Method and apparatus for the manufacture of deeply-webbed girders
IPC: E04C3/04
Filed: 1958-03-03
Abstract: 882,175. Making girders; curving. LITZKA, F. March 3, 1958, No. 6669/58. Classes 83 (2) and 83 (4). A method for producing deeply webbed honeycomb girders having an increased loading capacity from H-section girders of low loading capacity is characterized in that the web of at least one H-section girder 1 is separated along a toothed line 2 by means of a separating device, e.g. a flame cutter or chip-removing device, by producing a movement of the H-section girder and the separating device relatively to one another, the separated girder sections 1a and 1b being separated from one another and one section longitudinally displaced so that the teeth of the two girder sections 2a, 2b are opposite one another, both girder sections being finally welded together at the abutting points with the interposition of web pieces 5. The portion S of the toothed line 2 may be arcuate if desired. To prevent buckling stiffening members 6 are inserted between the flanges of the girder and welded or riveted thereto. Honeycomb girders of various depth are formed by the method as shown in Figs. 8 and 9. In carrying out the method, each of the girders 1 to be separated, is clamped down by an auxiliary girder 60 or by means of hydraulically or pneumatically operated clamping cylinders 62 thus preventing the sections la, 1b after being separated from tilting or becoming distorted, Fig. 11. The foremost girder section is moved longitudinally by means of the auxiliary girder 60 whereupon web pieces are inserted between the butts or teeth of the sections la and 1b and the assembly tack welded. The girder assembly is then removed for the final welding operation. The clamping devices may be used for forming curved sections as shown in Fig. 12.
Patent GB-122342-A (GB)
Title: Improvements relating to the Carding of Cotton or Cotton Waste.
Inventor: STOTT WILLIAM
IPC: D01G15/02
Filed: 1918-04-20
Abstract: 122,342. Stott, W. April 20, 1918. Feeding carding-engines. - Cotton or cotton waste is fed direct from a scutcher lap to a finisher card without the intervention of a breaker card by means comprising an air trunk E and an oscillating telescopic trunk G provided at its lower end with collecting cages H which are traversed across the feed apron B of the finisher card A to deliver the fibre thereto. The laps fed from the holders C by rollers d are broken up by a spiked roller D and the fibres are drawn up the trunk E by a fan F. The trunk G is mounted to oscillate and the carriage carrying the cages H and the lower part of the trunk G is mounted on rails h<1>.
Patent GB-1040861-A (GB)
Title: Photographic processing machine
Inventor: DAVIES MICHAEL BASIL
IPC: G03D5/04
Filed: 1965-02-17
Abstract: 1,040,861. Photographic processing machines. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 17, 1965, No. 6751/65. Heading G2A. A photographic plate or print 6 is suctionally held on the lower surface of a lid 3 of a processing machine, the lid being hinged to a tank 2, and a carriage 7, carrying three tubes 8, 9, 10 which extend the width of the lid, moves backwards and forwards along the length of the tank, different processing liquids in turn being sprayed on to the emulsion surface of the plate by nozzles in the tube 8. The tubes 9, 10 are supplied with compressed air, and are provided with slots so as to provide air curtains in front of and behind the spray tube which curtains limit the spray and partly dry the plate. A system of pumps, multi-way valves and pipes supplies water, a developer, water, a fixer and water in turn to the tube 8, the developer and fixer being returned to the tanks 16, 17 respectively, and the water being sent to a waste outlet by means of the electrically controlled three way valves 14,18. Initiation of each processing step is controlled by a switching device operated when the carriage 7 reaches either end of the tank so that for each step the complete emulsion surface is scanned by the spray tube an integral number of times.
Patent GB-609060-A (GB)
Title: Improvements in or relating to an absorption device for ultra high frequency radiant energy
IPC: H01Q17/00
Filed: 1946-03-05
Abstract: 609,060. Testing radio transmitters. STEVENS, A. H. (Philco Corporation). March 5, 1946, No. 6780. (Class 40 (v)] An absorption device for ultra-high-frequency radiant energy comprises a surface made of a material having a high loss characteristic, the surface being composed of a plurality of individual surfaces each corresponding to a body having an apex. The device provides an absorbing surface against which directional ultra-high-frequency energy may be directed when testing radio transmitters under actual operating conditions. In Figs. 1 and 2, a base board 10 about eight feet square and made of wood, fibre board or metal is covered with square pyramids 11 of high loss material such as carbon in plaster of Paris, synthetic resin or other dielectric material. The angle of the pyramids is from ten to twenty degrees, and the height of the pyramids is between one and one and a half wavelengths. The heights of the pyramids need not all be the same but may be varied at random over the absorbing device. Fig. 5 shows a modification in which the absorbing surface is in the form of a high loss coating 21 on base 19 which is moulded in the form of hexagonal pyramids. Alternatively, the layer 21 may be made integral with the base.