baber/WOPTO huggingface dataset:
Patent GB-1387596-A (GB)
Title: Typewriters
IPC: B41J11/64
Filed: 1972-04-24
Abstract: 1387596 Typewriters B A BRANTINGHAMCOLLINS 28 June 1973 [24 April 1972] 18886/72 Heading B6F A transparent strip carrying on its underside the repeated imprint of the same single typed letter, for example eeee, is accurately affixable to the erasure plate of a typewriter. The line of letters is parallel to the normal print line of the machine and the imprint spacing also corresponds to that of the machine. Thus previously typed material may be slipped under the strip and accurately aligned for correction by ensuring coincidence of the imprint letter with the same letter in a typed line on the material. A tray of thin material may be provided spaced from the underside of the strip so that the typed material can be aligned away from the typewriter. The tray and strip are then affixed to the erasure plate.
Patent GB-417348-A (GB)
Title: Improvements in rotary type exhausters, compressors, superchargers and the like
IPC: F04C18/344
Filed: 1933-07-05
Abstract: 417,348. Rotary compressors. NICHOLS COMPRESSORS, Ltd., 302, Finsbury Pavement House, Moorgate, London, and HAGGO, M., Strathearn, Castle Hills, Northallerton, Yorkshire. July 5, 1933, No. 19062. [Class 110 (ii).] In compressors of the sliding - vane type, pairs of thrust rods f are placed between each pair of vanes b and holes h, of greater diameter than the rods, are provided in the shaft d. The vanes may bear centrally on the ends of the rods, or to one side as shown. Packing may be placed between the rods and the shaft in the holes h. The middle portions of the rods may be of smaller diameter than the ends.
Patent GB-1350826-A (GB)
Title: Method for the preliminary classification of material and a  plant for carrying out this method
IPC: B02C21/00
Filed: 1971-06-04
Abstract: 1350826 Milling systems; tube mills; impact pulverizers KLOCKNER - HUMBOLDT - DEUTZ AG 4 June 1971 [5 June 1970] 19065/71 Heading B2A A milling system comprises a preliminary impact pulverizer 1 followed by a tube mill 2 for fine grinding, the feed material being initially separated by a hot gas stream blowing across the hammer mill feed inlet, so that only the coarse material is ground in the hammer mill. The finer material is supplied to a grader 6. Coarse particles from the grader 6 are delivered by a screw 21 to the tube mill 2 and the fire particles are separated from the carrier gas in a cyclone 15 and delivered at 16. The initial separation is performed in a grading chamber 10, Fig. 2. Hot gas is supplied via a conduit 8, and the flow is adjusted by louvres 13, 22. The feed material is supplied via a twin flap lock 12. The gas is drawn through the system by a fan 17.
Patent GB-1063518-A (GB)
Title: Process for preparing rubbery polymers
IPC: C08F10/00
Filed: 1964-05-07
Abstract: Alpha-olefines are polymerized either in bulk or in diluents to solid high molecular weight rubber polymers using a catalyst comprising the product formed by mixing (1) a titanium oxyhydrocarbon wherein the hydrocarbon part is alkyl, aryl, alkenyl, cycloalkyl or cycloalkenyl, (2) a titanium trichloride and (3) an aluminium compound AlRnX3- n where R is an alkyl group containing 1 to 10 carbon atoms, X is hydrogen or halogen and n is a number from 2 to 3.  Component (1) has the formula Ti(OR1)4 where R1 is preferably an alkyl radical of 2 to 8 carbon atoms.  Component (2) preferably is n1TiCl3.MCln2 where n1 is 1 to 5, M is a metal such as magnesium, zinc or aluminium and n2 represents the valence of M. Using the catalyst system of the invention block copolymers of alpha-olefines may be prepared.  To form block copolymers propylene may first be polymerized using a two-component catalyst comprising TiCl3 and an organo-aluminium compound to form a crystalline polymer, then there is added the third component of the catalyst, the titanium oxyhydrocarbon, and polymerization is continued by introducing one or more monomers.  In the examples:-(1) Propylene is homo-polymerized using a catalyst comprising 3TiCl3.AlCl3, diethyl aluminium monochloride, triethylaluminium or diisobutyl aluminium hydride, and either tetraoctyl or tetrabutyl titanate; (2) Butene-1 is homopolymerized using 3TiCl3.AlCl3, diethylaluminium monochloride and tetraoctyl titanate; (3) Ethylene is copolymerized with propylene using 3TiCl3.AlCl3, diethylaluminium monochloride and tetrabutyl or tetraoctyl titanate; (4) To a partial polymer of butene-1, ethylene and propylene are added and the polymerization continued; (5) Propylene is polymerized using a two-component catalyst, the third catalyst component is then added and the polymerization of propylene continued; and (6) An ethylene-propylene copolymer rubber block is sequentially formed on polypropylene.
Patent GB-276814-A (GB)
Title: An improved method of and means for braking internal-combustion engines
IPC: F01L13/00
Filed: 1926-07-31
Abstract: 276,814. Marks, E. C. R., (Motorwagenfabrik Berna Akt.-Ges.). July 31, 1926. Stopping; starting. - In an arrangement for braking a four-stroke engine by rendering the inlet valve inoperative and interposing an additional exhaust cam, decompression during the compression stroke of the engine piston is effected in an intermediate position of the gear, the inlet cam remaining operative and the oblique lateral face of the additional exhaust cam causing the decompression. As shown, admission and exhaust cams E, A<1>, are mounted on a cam shaft which can be axially displaced and then turned through 90‹, or the axial and angular displacements of the cam shaft may take place simultaneously. In position I, Figs. 4 and 7, the cams act normally on the cam bowls 2, 3; in position II, the cams E, A<1> are still operative, the cam bowl 3 also being lifted momentarily during the compression stroke by the oblique face of the additional cam A<2>; and in position III, the cam shaft having been turned through 90‹, the inlet cam E is inoperative and the cams A', A<2> open the exhaust valve during the inlet and power strokes. The decompression in position II may be used to facilitate starting. The cam shaft S and the throttle valve are both controlled by a lever 4 on the steering wheel 5, Fig. 12, which is moved in one direction to open the throttle valve and in the opposite direction to effect decompression and braking. The shaft 15 of the lever 4 carries a worm 16 in engagement with a worm wheel 17, on the shaft 20 of which are rigidly mounted levers 18, 19. The free ends of these. levers engage slotted links 21, 22 which are pivotally connected respectively to an arm 26 on the shaft 27 of the throttle valve and to an arm 23 on a. shaft 24 carrying a pinion for moving the cam shaft axially.
Patent GB-335254-A (GB)
Title: Improvements in or relating to addressing and other similar printing machines
IPC: B41L47/18
Filed: 1929-06-21
Abstract: 335,254. Addressograph, Ltd., (Adressator Akt.-Ges.). June 21, 1929. Addressing and like machines; stopping-arrangements.-In addressing or similar printing- machines of the kind in which printing-plates are fed forward in succession to printing position, a slotted plate is attached to or inserted after the last plate of a series, and a lever is provided which slides over or under every plate and, on the arrival of the slotted plate, passes through the slot and actuates mechanism for stopping the machine. The lever may be spring or gravity controlled and may be rocked at the time of passing of each plate or may be held stationary by the moving plates until released by the slotted plate. As shown, an address printing-plate A, Fig. 1, provided in one corner with perforations B and protuberances C respectively to receive and retain the usual index &c. tabs, is provided at the opposite corner with a rectangular slot D. One arm of a bell crank E, Fig. 4, is adapted to pass through the slot D, and the other arm is connected to a lever F pivoted at f<1> and terminating in a catch G engaging a projection H on a rod J connected to the starting handle or pedal of the machine. The stop motion may, alternatively, comprise an electrical switch or a friction clutch.
Patent GB-1141747-A (GB)
Title: Production of fertilizer materials
IPC: C05B11/06
Filed: 1967-04-26
Abstract: 1,141,747. Calcium sulphate and ammoniumphosphate - nitrate mixtures. COMMERCIAL SOLVENTS CORP. 26 April, 1967 [12 May, 1966], No. 19246/67. Heading C1A. Rock phosphate is digested with nitric acid and sulphate ion is added to precipitate a minor amount of the dissolved calcium as calcium sulphate which is filtered off together with the coagulated insoluble fraction resulting from the digestion, more sulphate ion is then added to precipitate substantially all of the calcium remaining in solution and the relative pure calcium sulphate precipitate produced is filtered off. The acidic filtrate may be neutralized with ammonia, preferably anhydrous and the ammonium phosphate - ammonium nitrate mixture produced can be dried and granulated. Suitable sulphate ion sources are sulphuric acid, potassium sulphate, sodium sulphate and ammonium sulphate. When sulphuric acid is used the nitric acid formed may be separated by distillation and recycled to the rock digestion stage. In an example potassium chloride solution is added to the slurry after ammoniation.
Patent GB-499009-A (GB)
Title: Improvements in process for metal coating
IPC: C23C2/02
Filed: 1938-06-29
Abstract: 499,009. Coating with metals. TRIGGS, W. W. (Reynolds Metals Co.) June 29, 1938, No. 19248. [Class 82 (ii)] Compound metal sheets, strips, ribbons, &c. are formed by passing the metal base through a bath of molten coating metal and setting up a continuous series of small waves or ripples which travel over the surface of the bath and across the width of the face of the emerging metal on one or both sides thereof. In the form shown, the ripples 6 are produced by jets of fluid, e.g. compressed air, from a nozzle or nozzles 5 directed downwards on to the bath 3 so that the ripples run across one or both faces of the emerging metal 4. The process is of particular use in coating ferrous metal with aluminium or aluminium alloys, as it is stated to prevent irregularities and discolorations in the coating, probably owing to the ripples breaking up the film of oxide on the bath. U.S.A. Specifications 850,548 and 2,062,795 are referred to.
Patent GB-810555-A (GB)
Title: Improvements relating to apparatus for clamping together parts to be joined, such as in the closing and welding together of shell moulds
IPC: B22C23/00
Filed: 1955-07-04
Abstract: 810,555. Moulding-machines. REYNOLDS, T. July 3, 1956 [July 4, 1955], No. 19269/55. Class 83 (1). [Also in Group XXIII] Clamping apparatus (see Group XXIII) for pressing together the two parts of a shell mould, includes spring-loaded plungers through which pressure is applied to the parts. A sub-assembly of base plate, template and plungers forms a bearing plate. A lower mould part is placed on the plungers at 13L, Fig. 1, which is a waiting station, and located by butting it up against pins 30, 32, which are along the edges of the lower bearing plates. Adhesive material is placed on the lower mould part and the upper mould part is then placed on it, aligned by dowels and sockets. The bearing plate 19 carrying the assembled mould parts is pushed into a pressing station 13, displacing the other bearing plate 18 to the delivery station 13R, carrying the mould completed in the previous operation by the adhesion of the mould parts. Compressed air is admitted to a cylinder 17 and the outward movement of its plunger causes the upper bearing plate 16 to descend, and the mould parts are pressed together between the top and bottom plungers, any inequalities being taken up by their springs.
Patent GB-873546-A (GB)
Title: An indicator for use with fishing lines
IPC: A01K97/12
Filed: 1959-06-05
Abstract: 873,546. Fishing indicators. MULCHINOCK, F. W., and WATSON, W. E. May 17, 1960 [June 5, 1959], No. 19363/59. Class 48. A bite indicator comprises two nylon tubes 3 and 4 for guiding a fishing line to rub on a roughened wheel 12 mounted on a shaft 11, supported by plates 7 and 8, and carrying a pointer 13, visible through transparent cover 2 of casing 1, such that the line may run freely through the guide tubes 3 and 4 but any linear movement thereof causes pointer movement. Tubes 3 and 4, normally coaxially aligned as shown by dotted lines in Fig. 3, extend through and are fast with the wall of casing 1 and engage the limbs of a stirrup 5 by which they may be flexed. The stirrup is guided by a portion 6, stamped out from a plate 7, and a parallel plate 8 and is moved by a threaded spindle 9 and knob 10. By twisting the knob 10, the line is first threaded through the guide tubes, the latter then being flexed so as to cause the line to bear on the wheel 12 with any required degree of pressure. The indicator may be attached to a rod by wires 14 and a split tube 15 (Fig. 1). In a modified form (Fig. 6), the line guide is a metal tube 16 having a central aperture 161 in which is positioned a wheel 17. The one end 18 of tube 16 is fixed to the casing wall, whilst the opposite end 19 extends through a slot 20, the tube being urged towards the wheel 17 by a spring 21 fitted to a plate 22 fast on a threaded rod 23 meshing with a knob 24 rotatably mounted in the casing wall.
Patent GB-668414-A (GB)
Title: Improvements in and relating to safety releasing devices for wringers
Inventor: KUMM ROBERT WILLIAM
IPC: D06F45/00
Filed: 1949-07-22
Abstract: 668,414. Wringing-machines. ENGLISH ELECTRIC CO., Ltd. June 23, 1950 [July 22, 1949], No. 19367/49. Class 138 (ii). In a wringer having a top bar carrying a spring by which pressure is applied to the rolls and a release mechanism which operates to release one end of the top bar which can then swing upwards about a detachable pivot which secures the other end of the top bar to the wringer frame, the pivot is in the form of a pin engaged by an open hook-like member and resilient means are provided which can operate to disengage the pin from the member. In the arrangement shown, as applied to a wringer of the kind disclosed in Specification 593,931, in which a top bar 5 is connected at one end to a stile by means of releasable toggle mechanism, the other end of the bar is pivoted to a stile 2 by means of a pin 10 secured to that end of the bar and fitting into a curled-over edge of a bracket 11, secured to the stile 2. A spring 13, located in a recess in the stile 2 projects at its lower end through the bracket 11 and extends, at its upper end through a slot in the bracket. Upon operation of the toggle mechanism, the top bar 5 swings upwardly about the pin 10 which is subsequently released from the bracket 11 by the action of spring 13. The spring may operate on the pin on either side of the bracket.
Patent GB-796458-A (GB)
Title: Feeding mechanism for sewing machines
IPC: D05B27/22
Filed: 1956-06-22
Abstract: 796,458. Sewing machines. SINGER MANUFACTURING CO. June 22, 1956 [July 20, 1955], No. 19384/56. Class 112 Means for putting a sewing machine feed dog out of action comprise a member slidably but non-rotatably mounted on a feedlift rock-shaft, a bracket rockable with said shaft, a pin slidably mounted in said bracket, one end of the pin being tapered and the other end being engaged in a curved slot provided in the slidable member, whereby movement of the latter serves to engage or disengage said tapered end with or from a lever member. As shown in Figs. 2 and 3A a feed-bar 21, carrying a feed dog 22, is connected by a crank 19 to a feed-advance rock-shaft 17, the connection between the feed bar and a feed-lift rock shaft 18 being such as to permit the lowering of the feed dog below the cloth plate 16. Shaft 18 carries a bracket 52 pivoted at 62 to a lever member 69 provided with a roller 24 disposed in a forked end 23 of the feed bar, a spring 66 urging lever 69 in the clockwise direction. A pin 48, slidable in bracket 52, has a tapered end 49 and a groove 47 in the other end engaged with a curved slot 46 in a flange 44 of a member 39 slidable on shaft 18. A link 34 connects slider 39 with a lever 27 pivoted at 28 to the machine frame. Movement of lever 27 from one end position to another thereby serves to engage or disengage tapered end 49 with or from a fork 71 in lever 69, whereby moving feed dog 22 to the operative or inoperative position. In a modification, Figs. 6, 7, 9, a feed bar 121 carrying a feed dog 122 is connected by a crank 119 to a feed-advance rock-shaft 117, and a feed-lift rock shaft 118, having an arm which carries a roller 124 engaged in a forked end 123 of the feed bar, is adapted to be coupled or uncoupled from a driving shaft 191. A lever member 160, pivoted on shaft 118, has a fork 181 embracing a cam 189 fixed to shaft 191. A bracket 152, fixed to shaft 118, slidably carries a pin 148 having a tapered end 149 and a groove 147 at the other end engaged in a curved slot 146 in one arm of a U-shaped member 139 slidably mounted on shaft 118. A spring 166, connected between bracket 152 and lever 160, biases shaft 118 in the counterclockwise direction. A link 134 connects slider 139 to a crank 129 fixed to the lower end of a spindle 127, the upper end of which carries an operating knob 128. Turning of the latter to one or the other end position thereby serves to engage or disengage tapered end 149 with or from a fork 186 in lever 160, whereby moving feed dog 122 to the operative or inoperative position.
Patent GB-293358-A (GB)
IPC: C09B45/16
Filed: 1928-07-04
Abstract: 293,358. Soc. of Chemical Industry in Basle. July 4, 1927, [Convention date]. Azo dyes, soluble metal compounds of. - Coloured varnishes are made by employing as colouring agents metal, e.g. chromium or copper, compounds of o-oxyazo dyestuffs. The invention is applicable, for example, to varnishes having a basis of cellulose or a phenol-aldehyde condensation product. In an example the chromium cornpound of the dyestuff obtained by coupling diazotized 2-aminophenol-4-sulphamide with 1-(3<1>- sulphamino) phenyl-3-methyl-5-pyrazolone is dissolved in a varnish having a basis of nitrocellulose; the product gives intense orange transparent coatings, fast to light, on surfaces of metal, glass, leather, wood, celluloid, or silk, and by incorporating suitable additions may be converted into a, matte or covering varnish.
Patent GB-911550-A (GB)
Title: Automatic sample changer to be used in connection with an apparatus for measurement of radioactivity
Inventor: LIPPERT JORGEN EMIL
IPC: G01T7/08
Filed: 1959-06-08
Abstract: 911,550. Handling radio-active material. ATOMENERGIKOMMISSIONEN. June 8, 1959 [June 27, 1958], No. 19442/59. Class 39 (4). An automatic sample changer enabling a number of radio-active samples to be successively placed in a measuring chamber has means for codifying each radio-active sample holder comprising electric contact operating devices whereby the duration time in which each sample is in the chamber for counting is automatically varied according to the code. The arrangement permits samples having widely differing degrees of radio-activity to be measured, the necessary counting time being preset on each holder by the code in relation to the radio-activity of the sample. As shown, the samples are held in cups 5 carried by holders 2 slidably mounted one above the other in a rack 1. The rack 1 is automatically moved vertically in steps by a motor 4 and worm shaft 3 so that the holders 2 are presented in turn at the level of the bottom of a measuring chamber 11 having a screen 12. Each holder 2 has a T-shaped notch 6 in its front edge which is engaged by the head 7 of a tappet 8 when the holder is at the afore-mentioned level, the tappet then being automatically retracted by a motor 14 and worm shaft 13 so that the holder is drawn into the measuring field at the bottom of the chamber 11. The time during which the holder is held in the chamber is determined by pins 10 which are selectively placed in six holes 9 provided in the holder according to a code, these pins causing operation of certain elements 15 of an electric contact mechanism 16. After the preset time the tappet 8 automatically returns the holder to the rack and the rack moves a step to permit the sample in the next holder to be measured, the vertical movement of the rack causing the tappet head 7 to be automatically disengaged from the notch 6 of the first holder and to be engaged in the notch 6 of the next holder. The code may alternatively determine the number of counts or the range in which the measuring is to be performed. In a modified arrangement the pins 10 are slidable in the holders and the code is determined by the amount by which the pins project therefrom.
Patent GB-669638-A (GB)
Title: Improvements in or relating to sintered alloys
IPC: C22C33/02
Filed: 1948-07-20
Abstract: Shaped bodies produced by powder metallurgical methods are made from a metal powder which contains more than 90 per cent Fe and Cu in amount not exceeding 4.5 per cent for improving the strength properties, the C content being not more than 0.1 per cent.  Other alloying metals such as Cr, Ni or Mn may be present.  The shaped bodies after sintering may be subjected to hardening, precipitation hardening or other heat treatment.  The specification as open to inspection under Sect. 91, comprises also compositions containing Cu up to 14.5 per cent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1055454-A (GB)
Title: Improved gasket for pipe couplings
IPC: F16L23/20
Filed: 1964-05-11
Abstract: 1,055,454. Joint-making packing; pipe coupling. D. SMITH. May 11, 1964, No. 19509/64. Headings F2B and F2G. A gasket 9 for a pipe coupling comprises a corrugated sheet metal ring having end portions 24 parallel to the axis of the ring, the corrugations comprising at least two ridges 25 extending radially outwardly beyond the end portions and at least one V-section groove 26 separating the ridges and lying radially inwardly of them but radially outwardly of a cylindrical plane containing the end portions. The gasket is housed in notches 4 in the pipe flanges 3 with its ends 24 tightly and sealingly engaged in slots 5 in the flanges. The slots 5 are preferably tapered to provide a wedging action with the rectangular section ends 24 which sealingly engages the walls 30 and 32 of the slot. Alternatively, the ends 24 may be tapered and the walls 30 and 32 made parallel to each other. Preferably at least the ends 24 of the gasket are coated with a soft amalgam. In a modification, Fig. 6, a spreader in the form of a split ring 6 which may be corrugated, Fig. 8 (not shown), and has pressure equalizing holes 8 therein is inserted between the ends 24. In a further modification, Fig. 10, the gasket is surrounded by a split metal back-up ring 40 that engages recesses in the flanges 3 and has two circumferentially opposite slots 41 therein to facilitate removal of the ring 40 complete with the gasket 9 and spreader 6 from the flanges 3. The pipes are coupled together by a clamp 14 which it is stated may be of the bi-metallic type described in Specification 805,676.