baber/WOPTO huggingface dataset:
Patent GB-669905-A (GB)
Title: Improved roll holder for a photographic camera
IPC: G03B9/70
Filed: 1949-03-04
Abstract: 669,905. Photographic roll-film holders. WRATE, A. E. March 8, 1950 [Mareh 4, 1949], No. 6014/49. Class 98 (i). A roll-film holder for a photographic camera wherein imperforate light-sensitized material is wound from a supply spool to a take-up spool past a picture gate, is characterized in that two rollers, arranged close together and geared together, are mounted therein, the lightsensitized material being led between and around the rollers, at least one of the rollers being surfaced for frictional engagement with the material, and having a circumference equal to a multiple of the dimension of the picture gate in the direction of the run of the film, and stop mechanism is combined with the rollers for metering the light-sensitized material frame by frame. The said roller may have means to perforate the material to indicate the division between exposed frames. As shown. Fig. 1, a roll holder has a rectangular casing 10 closed by a cover 33 in which a rectangular aperture 34 is formed. At one side of the aperture a guide roller 22 is pivoted, and a frame 19 carrying a pressure plate-21 is Hinged; to the same pivots. A roll of sensitized paper covered by an opaque leader strip, is loaded into the holder by removing cover 34 and swinging frame 19 outward. The leader strip is then led over roller 22 and plate 21, and over rubber-covered rollers 23, 24 (see also Fig. 2), mounted in frame 19 and geared together by gear-wheels 25, and fixed to a take-up spool 12. The cover 34 is replaced and the holder attached to the camera. A knob 17 with a ratchet attachment is turned to wind the leader strip on to spool 12 and to bring the sensitized film or paper -18 into position. Roller 23 carries a projection 29 which engages a stop -30 at each revolution; this stop is moved clear from the path of projection 29 until the paper is in position for an exposure. Winding continues until projection 29 abuts stop 30, tension being maintained in the strip by the ratchet. When the knob is pressed, roller 23 is released and rotates slightly so that stop 30 does not engage projection 29 until roller 23 rotates once as the film or paper is wound for the next exposure, the circumference of roller 23 being equal to the width of the frame in the direction of movement of the paper. A pin 27, mounted in a groove 26 of roller 23, perforates the film or paper at each revolution to indicate the division between exposed frames.
Patent GB-191308-A (GB)
Title: Improvements in apparatus for vulcanizing tyre covers and the like
IPC: B29D30/06
Filed: 1922-03-02
Abstract: 191,308. Bowker, W. J., (Doughty, H. J.). March 2, 1922. Vulcanizing - moulds; presses. - In moulds for vulcanizing tyre covers of the kind comprising separable upper and lower members 18, 19 and a third separable member 20 that determines the. rim diameter of the tyre and carries a ring 32 for sealing the tvre when steam is admitted into it by a tube 34, the parts 18, 19 are correctly positioned by their oppositely bevelled edges 22, 23 engaging with corresponding edges of the tread-heating chamber 21, these edges being shaped so that when the lower platen 15 of the press is lowered the tyre and the parts 19, 20 of the mould descend with it, and the part 18 of the mould remains positioned against the upper platen 10 by the heater 21. The member 20 is made in two interlocking parts to facilitate assembly of the mould. Steam is passed from the upper platen to the interior of the tyre through a valve 39, as known, which automatically closes when the lower platen is lowered.
Patent GB-307878-A (GB)
Title: Photographic bellows camera for roll films
IPC: G03B17/04
Filed: 1929-02-25
Abstract: 307,878. Neithotd Akt.-Ges., C. March 15, 1928, [Convention date]. Cameras, roll-film, bellows for.-The end 7 of the bellows furthest from the lens is bent over outwardly in tubular form round the body of the bellows and secured to the inner surfaces of flanged edges 5 on the camera body, which are parallel to the axis of the bellows. The bellows is folded so that the apexes of the undulations on the four sides are in the same plane.
Patent GB-391578-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/30
Filed: 1932-03-01
Abstract: 391,578. Vacuum cleaners. HOOVER, Ltd., Perivale, Greenford, Middlese.- (Hoover Co. ; North Canton, Ohio, U.S.A.) March 1, 1932, No. 6196. [Class 8 (i).] In a vacuum cleaner having a high-vacuum nozzle 7 and a low-vacuum nozzle 11, the high vacuum is produced by two or more fans 4, 3 in series, and the low-vacuum nozzle 11 is attached to a chamber 9 into which the fan 4 discharges through a pipe 8. A rotary or other agitator 14 in the nozzle 11 is driven by a belt 15, which can be removed through the gap between the spindles of the fans 4, 3, the spindles being connected by pin-and-slot engagement with a sleeve 20, movable axially against the action of a spring 23. The nozzle 11 can be closed by a pivoted plate 18 acted on by a spring 19. A hand-dusting appliance can be connected to an opening in the nozzle 7 closed by a cover 26.
Patent GB-159475-A (GB)
Title: Process for the direct manufacture of iron and steel
IPC: C21B13/08
Filed: 1921-02-24
Abstract: 159,475. Basset, L. P. Feb. 24, 1920, [Convention date]. Extracting.-In a direct process for the manufacture of iron and steel, a mixture of iron ore, coal and basic fluxes is heated in a furnace, preferably rotary, by means of a flame containing practically only carbon monoxide, and the reduction of the ore is effected in an incomplete manner by mixing the ore with a quantity of carbon insufficient for reducing the whole of the ore so that a certain fraction of the ore escapes reduction and, with the help of the basic slag, prevents the reduction of the lime, phosphates, silicates &c. in the ore, thus avoiding phosphoration of the metal. The fuel is injected into the furnace in a very finely divided condition in the form of an impalpable powder and is mixed with superheated air. The process may be carried out in the rotary furnace shown. The iron ore &c. is fed into the furnace a by a screw m or other means, and the finely divided fuel from a hopper g is blown into the furnace by superheated air from a blast pipe f. Tap-holes i, j for the metal and slag respectively are provided as shown. The gases from the furnace pass into a brickwork chamber k and are removed by a fan l, part being used for the heating of the air injected by the nozzle f. A finely pulverised hydrocarbon may be used instead of coal in the hopper g.
Patent GB-1380871-A (GB)
Title: Transhipment devices
IPC: B65G67/00
Filed: 1973-02-08
Abstract: 1380871 Loading and unloading ships CREUSOT-LOIRE 8 Feb 1973 [8 Feb 1972] 6315/73 Heading B8 A ship transhipment device comprises a portal 2 movable by rollers 5, 6 on rails 7, 8 along a quay 4 and mounting conveyers 1 elevatable and extendable to reach a moored ship at any tide height. The conveyers are supported by rolling members 10 in all their working positions A-C, Fig. 2, and can be extended by a haulage member 18 passing over pulleys 21, 22 with horizontal axes, to a motorized drum 23 while it can be elevated by a haulage member 14 passing over a similar pulley 15 to a motorized drum 17. The haulage devices allow a ship to be reached however it is moored and at any tide height while they can be operated to raise the conveyers to a substantially vertical inoperative position clear of the edge of the quay. As an alternative the members 15, 21 can be motorized.
Patent GB-789492-A (GB)
Title: Infusible coffee bag
Inventor: WEISMAN MAURICE
IPC: B65D85/808
Filed: 1956-02-29
Abstract: 789,492. Coffee bags. MODERN COFFEES, Inc. Feb. 29, 1956, No. 6321/56. Classes 94(1) and 94(2). An infuser bag for coffee &c. is formed from webs sealed about the contents, the webs each having one or more pleats 6 which are incorporated into the end seals 10 of the bags. A series of bags may be formed joined by portions 18 having cuts 19 to assist separation.
Patent GB-374083-A (GB)
Title: Improvements in or connected with clutch and reverse gears
IPC: F16H3/60
Filed: 1931-02-28
Abstract: 374,083. Oil pumps. LANGDON, A. G., 77, Derby Road, Northam, Southampton. Feb. 28, 1931, No. 6330. [Class 12 (iii).] In a transmission unit for marine use, comprising a clutch and an epicylic reversing gear enclosed in a casing 2, an oil pump 23 is operated by a wheel 24 engaging teeth 25 cut in the shaft 4.
Patent GB-1029030-A (GB)
Title: A process for the preparation of alpha,beta-ethylenically unsaturated carbonylic compounds
IPC: C07C45/31
Filed: 1965-02-15
Abstract: a ,b -Ethylenically unsaturated carbonylic compounds are prepared by contacting a C3-C6 acyclic mono-olefin having a terminal double bond and at least 2 allylic hydrogen atoms with a mercury salt, an inorganic compound containing pentavalent vanadium and oxygen, and an aqueous solution of a strong acid, hydrolyzing the resulting mixture containing a mercuric salt-olefin complex with water at 80-150 DEG C. to produce the desired product, separating the resulting mercurous salt from an aqueous solution containing reduced vanadium, treating the latter at 120-250 DEG  C. with oxygen under pressure to form a pentavalent vanadium product, and recycling this and the mercurous salt to the initial reaction.  The mercury may be present initially in the mercurous or mercuric state and vanadium in the tetravalent state. The acid should have a pH below 3 in 0.1N solution at 25 DEG C., and should not be a hydrogen halide or contain an anion complexing with Hg. Sulphuric is preferred and may be used in 0.5-15% by weight aqueous solution.  Mercury and vanadium sulphates are then preferred.  Temperatures of 0-70 DEG  C. and pressures of 1-30 atm., preferably sufficient to liquefy at least part of the olefin, are used.  The conversion of propylene to acrolein is exemplified. Isobutylene yields methacrolein, butene-1 methyl vinyl ketone, and hexene-1 principally propyl vinyl ketone.
Patent GB-203774-A (GB)
Title: Improvements relating to vehicle lamps
IPC: F21V11/08
Filed: 1922-12-04
Abstract: 203,774. Barrett, A. Dec. 4, 1922. Lantern shutters.-In a vehicle lamp provided with an anti-dazzle device of the iris diaphragm type, the arcuate members 1 are provided on their ends with spherical projections 2 which engage radial recesses 3 in annular rings 4, the members 1 being provided with shoulders to limit their movement. Between the two groups of projections 2 is a plate 15 having annular races or grooves 16 one for each group. Each ring 4 is provided with a separate housing, the housings 5, 6 being rotatably connected together by pin and slot connections 7. The front glass 17 is provided with a central aperture in which is secured a ring or carrier 18 for a disc 19 of coloured glass. The head-lights on a vehicle may be provided with coloured discs of different colours, and two or three of the members 1 may be similarly coloured.
Patent GB-155728-A (GB)
Title: Improved construction of apparatus for enabling internal combustion engines to be readily started
IPC: F02N99/00
Filed: 1920-03-31
Abstract: 155,728. Daniels, E. March 3, 1920. Spray carburettors. - A device for enabling an engine to be started on petrol and afterwards run on heavy fuel comprises a casing A containing a spring-pressed piston K carrying two oppositely-arranged valves J, I. the casing being provided with an opening D to the induction pipe above the piston, an inlet E for heavy 'fuel between the piston and the valves, an inlet F for petrol below the valves, and an outlet G to the carburettor between the valves. When the engine is stopped, the pressure of the spring L on the pistons closes the heavy fuel valve J and opens the valves I, placing the carburettor in communication with the petrol supply. On starting, the piston is lifted by suction closing the valve I and opening the heavy fuel valve J.
Patent GB-212929-A (GB)
Title: Improvements in and relating to cocks provided with electric liquid heating means
IPC: F24H1/10
Filed: 1924-03-13
Abstract: 212,929. Hanson, A. F. E. March 16, 1923, [Convention date]. Switches, quick-break. -A valve combined with electric heating means has a press button for actuating both the valve and the switch controlling the heater. The actuating spindle is moved by a rod 26 adjustably mounted in a member 12 provided with a push button 11 and prevented from rotating by a pin 13 engaging a slot 14 formed in a boss on the cover 15. The spindle carries a contact bridge 16 adapted to engage contacts 17 and complete the heater circuit when the spindle is depressed to its lowest position. The spindle is held in its intermediate or lowest positions, corresponding to the delivery of cold or hot water by a pivoted spring pressed catch 23 engaging one or other of the notches 21, 22 in the spindle. The catch is provided with a slot having enlarged ends engaged by a pin 29 mounted on a member 30 rotatably mounted on the cover 25 and fitted with a hand lever 31. The member 30 is normally retained in one of its extreme positions by a spring tumbler 35 but when moved to its central position it releases the catch allows the switch to open and the valve to close under the action of the spring 9 assisted by the fluid pressure. The actuating spindle has a pin 38 adapted in one extreme position of the handle 31 to contact with the member 30 and so prevent the valve being moved beyond its full open position but in the intermediate and the other extreme position the pin passes through a segmental slot 37 in the member 30. The device may be arranged so that the intermediate position corresponds to the delivery of hot water. The valve may be held open by a. slidable bolt and adjusting discs may be placed between the valve and actuating spindles.
Patent GB-1038764-A (GB)
Title: Improvements in or relating to a method of and apparatus for filling rod-like articles (e.g. cigarettes) into a container
IPC: A24C5/354
Filed: 1962-02-20
Abstract: 1,038,764. Packaging cigarettes or the like. MOLINS ORGANISATION Ltd., D. W. MOLINS, and H. A. STONE. Feb. 19, 1963 [Feb. 20, 1962], No. 6572/62. Heading B8C. Apparatus for transferring the bottom row of a stack of rod-like articles on to the top row of an adjacent stack at a lower level comprises support means on which the bottom row rests, pusher means to push the bottom row in the direction of the axes of the articles and resilient means to apply to the trailing ends of the articles being transferred, a downward force so as to prevent their tilting prior to falling on to the second stack. The apparatus is particularly applicable to tipped cigarettes with which tilting might cause the leading ends of the moving cigarettes to engage the ridge due to the tips of the cigarettes in the second stack. Cigarettes in a hopper 1 pass between pairs of vanes 5 and agitators 2, 4 and are restrained from endwise movement by members 6, 7, both of which stop short of the cigarettes in the bottom two rows of the so-formed stack. The cigarettes C, in the bottom row rest between flutes 13b in a support plate 13 and the cigarettes C 2  in the row above rest on the flutes and both rows are moved through the resilient means by a pusher 8. The cigarettes in the hopper then rest on the pusher and at the same time the plate 13 is moved so that another two rows of cigarettes are formed in the same positions as before after the pusher has moved back to its original position. The plate 13 is then also moved back to its original position. The resilient means comprises three flexible polyvinyl chloride strips 10, 11, 12, strip 11 being thicker and less flexible than the other two. As the cigarettes are pushed through the means, strip 12 bends, the bending being localized by the action of strip 11 against strip 12 and grips the moving cigarettes, thus keeping them horizontal. Strip 10 also bends and exerts a downward force on the trailing ends of the articles as they are discharged to cause closer nesting in the second stack. The second stack is formed in an open-sided container 15 which is lowered in increments by a support 16. A hinged door 18 permits the contents to be removed and a plate 19 mounted on the door locates the incoming cigarettes endwise.
Patent GB-1475062-A (GB)
Title: Method of producing a polymer of 2-pyrrolidone suitable for melt spinning
IPC: C08G69/24
Filed: 1976-02-19
Abstract: 1475062 White polypyrrolidene A C BARNES 19 Feb 1976 [3 March 1975] 06596/76 Heading C3R Melt-spinnable poly(2-pyrrolidone) prepared by polymerization in the presence of an alkaline catalyst and 0À01 to 0À03 moles SO 2  polymerization activator per mole of monomer is rendered white by sequential treatment with a liquid oxidizing agent and then a reducing agent. Specified oxidizing agents are solutions of hydrogen peroxide, potassium persulphate and sodium perborate. The reducing agent may be sodium metabisulphite; its use is stated to prevent polymer bleached by the oxidizing agent from becoming discoloured again on remelting. It is indicated that the process could also be applied to poly(piperidone).
Patent GB-239445-A (GB)
Title: Improvements relating to the working of two-cylinder four-stroke cycle gas engines
IPC: F02B43/00
Filed: 1925-03-11
Abstract: 239.445. Ehrhardt & Sehmer Akt.- Ges., and Drawe, R. March 11, 1925. Drawings to Specification. Four-stroke-cycle engines.-In a double-acting, twin-cylinder gas engine the whole of the air for scavenging and for forming the charge is supplied by a piston pump. The scavenging takes place throughout the whole of the exhaust stroke in each cylinder, so that in effect the air pump is in continuous communication with the exhaust pipe. Since the back pressure at low load is less than at full load a greater amount of air will be used for scavenging at low loads than at full load, thereby preventing undue dilution of the charge. The air supply to any one cylinder is throttled during the suction stroke to allow the gas to be drawn in, most of the air for forming the charge entering the cylinder at the commencement of the compression stroke. In a tandem cylinder engine the piston pump is in line with the working 'cylinder, all the pistons being on one rod. The use of a rotary blower working in a similar manner is disclaimed.
Patent GB-963218-A (GB)
Title: Improvements in or relating to gaskets and packings and methods of making them
Inventor: HERRINGTON MAURICE GERALD
IPC: F16J15/12
Filed: 1961-02-23
Abstract: 963,218. Joint-making packing. COOPERS MECHANICAL JOINTS Ltd. Feb. 23, 1962 [Feb. 23, 1961], No. 6727/61. Heading F2B. A gasket for a specific combination of two components to be joined together, particularly a cylinder head gasket for a specific internalcombustion engine, is made by obtaining the optimum load distribution pattern for the combination, making a die arranged to compress local areas of a sheet of non-fluent material in accordance with the pattern, and wiring the gasket with the die. The optimum load distribution pattern is obtained by the steps of inserting a gasket of compressible non-fluent material of uniform thickness between the components to be jointed; tightening fastening means securing the components together to a predetermined value; removing the gasket and measuring its thickness at points all over its surface; converting the compression set values into pressure values and compiling a " before modification " load distribution pattern; reducing the thickness of the gasket in local areas in accordance with the " before modification " pattern; re-inserting the gasket and repeating the process to obtain a second load distribution pattern after modification; and further repeating the process until the optimum load distribution pattern is obtained. The non-fluent material may be a sheet of asbestos fibres held by a binder and two layers of metal, e.g. copper, may be used therewith to form a metal asbestos gasket.
Patent GB-1426645-A (GB)
Title: Pipstick and similar holder
IPC: A45D40/06
Filed: 1973-02-12
Abstract: 1426645 Lipstick and like cases EJECTORET SA 12 Feb 1973 [14 March 1972] 6761/73 Addition to 1278087 Heading B8P In a lipstick case having bosses 23A, 23B, 23C which prevent unwanted movement of a lipstick relative to its casing, the bosses (of which there are at least two) are located at uneven spacings around the peripheries of the opposed surfaces of the outer sleeve (18) and the inner sleeve 2.
Patent GB-898098-A (GB)
Title: Acrylic acid derivatives
Inventor: FARRINGTON JOHN ALAN
Filed: 1960-02-26
Abstract: The invention comprises acrylic acid derivatives of formula R1S.CH2.C(R3)=CH.CO.OR2 where R1 is hydrogen, alkyl, aralkyl or alkylthio, or a radical of formula R2O.CO.CH = C(R3).CH2.S-, R2 is hydrogen, alkyl or aralkyl, and R3 is hydrogen or alkyl. R1 may be r-butyl, benzyl, methylthio, ethylthio or n-propylthio; R2 maybe methyl, ethyl, n-propyl, t-butyl or benzyl; and R3 may be methyl or ethyl.  The compounds are prepared by reacting a ketone of formula R1S.CH2.CO.R3 with a compound of formula (R4)3P = CH.CO.OR2, where R1, R2 and R3 are as abov and R4 are aryl eg. phenyl, at -25 DEG C. to 150 DEG C. with or without an inert solvent or diluent. Compounds wherein R2 is alkyl may be hydrolysed, e.g. with hydrochloric, hydrobromic or sulphuric acid, to compounds where R2 is hydrogen.  In examples ethyl b -(benzylthiomethyl) crotonate is prepared by reacting ethoxycarbonyl-methylene triphenylphosphine with benzylthioacetone; t-butyl b -(benzylthiomethyl) crotonate is prepared by reacting t-butoxy-carbonylmethylenetriphenylphosphine with benzylthioacetone, and is hydrolysed in acetic acid saturated with dry hydrogen chloride to b -(benzylthiomethyl) crotonic acid; and ethyl b -(t-butylthiomethyl) crotonate is prepared by reacting ethoxycarbonylmethylenetriphenylphosphine with (t-butylthio) acetone. The t - butoxycarbonylmethylenetriphenylphosphine mentioned above is prepared by reacting triphenylphosphine with t-butyl chloroacetate in toluene to form t-butoxymethyltriphenylphosphonium chloride which is reacted with sodium in methanol. The (t-butylthio acetone) mentioned above is prepared by reacting t-butyl mercaptam with sodium in methanol, adding chloracetone followed by sodium bisulphite solution to obtain a solid which is filtered off and shaken with sodium hydroxide solution and ether, and the product is recovered by distillation from the ether layer.
Patent GB-984715-A (GB)
Title: Tent strainers
Inventor: GABBAY DAVID ALBERT
IPC: E04H15/32
Filed: 1963-02-20
Abstract: 984,715. Strap fasteners. SHERBORNE RUBBER CO. Ltd. Feb. 19, 1964 [Feb. 20, 1963], No. 6816/63. Heading E2A. A tent strainer formed as a unitary moulding of rubber or rubber-like material comprises an extensible shank 10 of elongated form with a head 11 at one end and a loop 12 at the other end, the arrangement being such that the loop and shank can be passed through an eyelet in a tent, the loop being adapted to be secured to a tent peg, and the head being of such a size that in use it cannot be pulled through the eyelet. The head 11 is substantially hemispherical with the shank projecting radially from the centre of the hemisphere.