baber/WOPTO huggingface dataset:
Patent GB-589180-A (GB)
Title: Device for the feathering of oars
IPC: B63H16/06
Filed: 1945-03-16
Abstract: 589,180. Rowlocks. LUNDIN, N. E., and OLSSON, J. March 16, 1945, No. 6697. Convention date, July 6, 1944. [Class 114] Rowlock 3 is of the type rotatably mounted in the gunwhale of a boat, its rear shank 4 viewed in the direction of motion as indicated by arrow 6, is formed with an hook 7, on which by means. of ring 8 is removably suspended an oar 1. During the feathering stroke the oar 1 takes up the position bearing against shank 4, shown in Fig. 1, and as the oar 1 is actuated it automatically swings upwards, its blade 2 assuming a near vertical position, ready for the oar stroke as in Fig. 2 ; on completion of this stroke the oar 1 will.swing down to its original position, and is guided by a pin 10 in groove 9 of the fore-shank 5, during the swinging movements.
Patent GB-449816-A (GB)
Title: Improvements in yarn winding and like machines
IPC: B65H54/52
Filed: 1935-03-04
Abstract: 449,816. Winding yarns &c. ARUNDEL, COULTHARD, & CO., Ltd., RIDGWAY, F., and FLINT, S. O., Sovereign Works, Stockport. March 4, 1935, No. 6711. [Class 120 (ii)] The arrangement described in Specification 415,505 is modified to reduce the physical effort required for setting on while retaining the rapid and efficient brake action and requisite pressure between the cheese and drum for all diameters of the cheese. The torsion spring a which bears at one end on the cradle f bears, at the other end, upon a part of or on the inclined member d which is pivoted to the cradle and adjusts the position of the brake g which engages the cheese h when the cradle falls at knock-off. As shown, the spring bears against a pin c projecting from the side of the member d.
Patent GB-469568-A (GB)
Title: Improvements in or relating to pipe clips
IPC: F16L33/02
Filed: 1936-03-06
Abstract: 469,568. Strapping-machines. BAKER, R. G. March 6, 1936, No. 6757. [Class 45] [Also in Group XXV] Relates to means for tightening and severing band clips for securing hose - pipes &c. The clip shown comprises an eyemember 11 punched from sheetmetal in substantially rectangular washer form, and a strip of metal provided with one or more apertures. A suitable length of strip is connected at one end 16 to member 11 and the other end is passed round the pipe and through the aperture 15 in member 11. The tightening implement comprises a hollow slotted shank 17 within which a nut 33, having an abutment 29 projecting through the slot can be moved axially by a screw 30 with thrust bearing 31 and operable by a handle placed in an aperture 35. A head secured to the shank comprises side cheeks 20 between which parts 21, 22 are secured as by rivets 23 and brazing, leaving an intermediate slot in which a guillotine blade 36 is slidably housed. The head has an integral claw 25 and may have a wider auxiliary claw 26 pivotally mounted so that it can overlie claw 25 if required for use with larger sizes of clip. A slot 37 in part 21 co-operates with the blade 36 which is operated by the nut 33 at the end of its travel. In use, claw 25 (or 26) is engaged with one edge of aperture 15 and abutment 29 is engaged with one of the apertures in strip 12. Screw 30 is operated to tighten the strip and the implement is then moved as a lever to dotted line position, Fig. 4, to bend the strip against eye 11. The screw is then loosened to release abutment 29 from the strip, the end of which is passed through slot 37 and surplus length cut off by operation of blade 36. The remaining end is then bent down against the pipe by. hammering.
Patent GB-384650-A (GB)
Title: Improvements in sheet holders for photographic printing and other purposes
IPC: G03C7/04
Filed: 1931-03-04
Abstract: 384,650. Photographic printing- apparatus. ZELLER, M., 61, Georgenstrasse, Munich, Germany. March 4, 1931, No. 6761. Convention date, Sept. 18, 1930. Void [Published under Sect. 91 of the Acts]. [Class 98 (ii).] Photographic sheets provided with line or other screens are registered by mounting the sheets with one edge held against relative motion by means of studs on a support which may be arched to a variable extent to effect the registration. As shown a flexible steel plate n supported by arms p pivoted to a ring s rotatable on a nut r may be arched by rotating the nut r to move the threaded spindle o. The negative a and the sensitive paper h are held on the plate n by a celluloid sheet m attached at one edge to the flat bar m<3> hinged to the fixed support, and attached at the opposite edge to the flat bar m<2> connected to tension springs m<1>. Study h on the plate n pass with clearance through holes in the photographic sheets, and at the top and bottom edges of the negative a and the sheet b are guage marks corresponding to the lines of the screen.
Patent GB-525891-A (GB)
Title: Improvements in closure caps for bottles, jars and like containers
IPC: B65D41/02
Filed: 1939-03-02
Abstract: 525,891. Closures for containers. WHITE CAF CO. March 2, 1939, No: 6870: Convention date, Nov. 10, 1938. [Class 125 (iii)] A closure cap, pressed from sheet metal, for a bottle or like container for preserving and dispensing food has a top 20 with a dependent skirt 21 with a lower flared part 22. The lower part contains an elastic compressible gasket 24 the lower end portion of which is secured by the curled prongs 25 at the bottom of the flared skirt part 22. The container neck has a sealing portion 11 with a shoulder 15, and a lip 16 having a smaller diameter than the sealing portion and having a height sufficient to prevent the cap from toppling off when it is placed on the container without any engagement of the sealing surfaces. When the closure is effected the cap is pressed home so that the gasket is wedged as shown between the sealing parts 11, 15 and the skirt of the cap. A prising tool may be inserted between the shoulder 12 of the container and the bottom of the cap to effect the opening. The interior surfaces of the cap may be lacquered where any acid or like liquid is stored in the container. Specification 525,102 is referred to.
Patent GB-831517-A (GB)
Title: Improvements in cinematograph screens
Inventor: HARKNESS THOMAS SMITH
IPC: G03B21/60
Filed: 1957-03-01
Abstract: 831,517. Luminescent screens. HARKNESS Ltd., A. B. Feb. 18, 1958 [March 1, 1957], No. 6905/57. Class 39(1). [Also in Group XX] A fabric or synthetic plastic cinematograph screen has at least one coating containing an optical brightener. The brightener may be in a transparent layer overlaying a reflecting coating, or carried in the reflecting coating or may be carried in both coating and layer. A priming layer, e.g. of titanium dioxide also containing the optical brightener may be provided.
Patent GB-1330999-A (GB)
Title: Smoking product from coffee bean hulls and method for making same
IPC: A24B15/16
Filed: 1972-02-15
Abstract: 1330999 Tobacco substitute PHILIP MORRIS Inc 15 Feb 1972 [17 March 1971] 6941/72 Heading A2C  A smoking product comprises a component of coffee bean hulls, i.e. outer rind, pulp, parchment or chaff. The hull components are slurried and brought to a pH of 9 by the addition of concentrated ammonia solution, optionally after the addition of diammonium phosphate or citric acid, to release coffee pectins and refined and heated and the refined slurry is cast to form sheets. Bright tobacco stem water-insoluble solids may be mixed with coffee bean hulls and refined together, or the two ingredients may be separately refined and the two resultant slurries combined, and the final refined slurry cast to form sheets. Alternatively the coffee bean hull component(s) may be blended with a tobacco filler.
Patent GB-164483-A (GB)
Title: Improvements in or relating to strip perforators
IPC: B41B25/00
Filed: 1920-03-08
Abstract: 164,483. Lanston Monotype Corporation, Ltd., (Lanston Monotype Machine Co.). March 8, 1920. Feeding webs.-For perforating paper strips such as used in type-casting or composing machines, the punches move with the strip which is fed at uniform speed by a feed roller the teeth of which enter the perforations made. After passing the feed roller, the strip travels over a detector surface which brings into action stopping-mechanism if holes are present in the strip. From the detector the strip passes to a winding roll, which automatically stops the machine when it reaches a predetermined diameter. The paper passes over the feed wheel 43 and thence over the surface 44, shown separately in Fig. 9. This has a groove 62 along its width which is ordinarily covered by the paper strip and a partial vacuum is maintained behind it. Should the strip have a defect in passing over the groove, air will pass through and destroy the vacuum. The diaphragm valve 72 will then open admitting a rush of air through the port 74 to prevent premature re-adjustment of the parts. At the same time a motor is started which acts to shift the driving belt of the machine on to its loose pulley. During the latter operation, through a bell crank lever 84, the diaphragm valve is once more raised into its closed. position and a partial vacuum once more formed in the detector. The winding-on roller 46 is driven by rollers 45 and is pressed upon by the roller 47, the axle of which is connected to a frame adapted, when the roller has reached a predetermined diameter, to press against a projection carrying upward a spring rod which ordinarily locks a bell-crank lever by a latch. This lever is then freed and under the influence of a spring shifts the driving-belt lever and stops the machine. The roller 46 is then removed and a new core put into position. The strip is wound round it and the winding up started by pressing against the strip by the spring blade 59.
Patent GB-493261-A (GB)
Title: Improvements in and relating to the silencing of the exhaust of outboard engines
IPC: F01N13/12
Filed: 1938-03-07
Abstract: 493,261. Detachable propelling - installations; exhaust-silencers. KOVACS, G., and KOVACS, S. March 7, 1938, No. 7045. [Class 114] [Also in Group XXVII] In an outboard motor the silencer casing 19 surrounds the propeller shaft, and a jet of water is directed through a pipe 23 from the exhaust pipe jacket 20 on to the silencer casing. The casing contains baffles 25 having openings 27 at the top, the exhaust gases leaving through an opening 28 at the top of the casing. A plate 33 for keeping the propeller under water has means for varying its inclination comprising a bolt 32 and interengaging serrations 37 on the plate and skeg 29.
Patent GB-1576997-A (GB)
Title: Apparatus for the conversion of waste material by pyrolysis
IPC: F23G5/20
Filed: 1978-02-22
Abstract: The device essentially consists of an externally heated, elongate, rotatable retort. This is associated at one end with a waste inlet and at the other end with a discharge for pyrolysed material and pyrolysis gas. The retort (2) is provided with an internal screw (25) having a central bore. Its pitch is smaller in the region of the discharge (4) for the pyrolysed residue than in the region of the waste inlet (3). This device ensures a uniform degree of filling of the retort over its entire length and precludes damage to the retort by jammed waste parts. <IMAGE>
Patent GB-381088-A (GB)
Title: Improvements in or relating to the protection of magnesium and high grade magnesium alloys from the action of corroding agents
IPC: C23F11/18
Filed: 1932-03-09
Abstract: To protect magnesium or high grade magnesium alloys from corrosion by water, alcohols, or non-oxidizing saline melts, particularly at elevated temperatures, the metal is exposed to the action of an alkali metal sulphide, e.g. sodium or potassium sulphide or liver of sulphur.  The metal may be treated with an aqueous solution of the sulphide prior to contact with the corrosive agent or a small amount of sulphide may be added to the corrosive agent.  For example, a small amount of sulphide, e.g. 3 per cent, is added to a potassium thiocyanate melt used in the heat treatment of magnesium or its alloys.  Water may be rendered non-corrosive in contact with the metal by adding 0,2-0,5 per cent of sulphide to the water.  Cooling liquids which come in contact with magnesium or its alloys, particularly in internal-combustion engines, and which consist of one or more alcohols, e.g. glycol or glycerine, or aqueous solutions thereof are rendered non-corrosive by adding 0,1-0,5 per cent of alkali sulphide.
Patent GB-803279-A (GB)
Title: A guard for disc knives
Inventor: LEWIN FRANK
IPC: B26D7/22
Filed: 1956-03-07
Abstract: 803,279. Slicing machine guards. SMITH & CO. (DESBOROUGH), Ltd., G, A. March 7, 1957 [March 7, 1956], No. 7145/56. Class 28 (2). Before removing a slicing machine disc knife to be washed a circular guard 16 is attached to cover or overlap the edge, the guard 16 being secured by captive screws 24 on an inner ring 15 joined by spokes 17 to the guard 16. The spokes 17 may be bowed to form handles. The ring 16 may have radial grooves to allow detergent to seep through.
Patent GB-754666-A (GB)
Title: Improvements in or relating to pyrotechnic masses
Inventor: HALL RONALD GIBSON
IPC: C06C15/00
Filed: 1954-03-11
Abstract: 754,666. Pyrotechnic compositions. BROCK'S CRYSTAL PALACE FIREWORKS, Ltd. Jan. 28. 1955 [March 11, 1954], No. 7160/54. Class 9(2) Compositions are given which comprise an intimate mixture of a phenol-formaldehyde resin, a urea-formaldehyde resin or a melamine-formaldehyde resin and an oxidizing agent. The oxidizing agent is an ammonium, alkali metal. alkaline earth metal or urea nitrate or an alkali metal or alkaline earth metal cholarate or an ammonium, alkali metal or alkaline earth metal perchlorate or chromate. A material which produces colour on ignition may be included in the composition. An organic nitro-compound may be included. A small quantity of copper nitrate or lampblack may be added to give even burning. The solid ingredients are ground to pass a 120 B.S. sieve, added to the liquid condensate and then stirred. When urea-formaldehyde resins are used, the catalyst is added last to prevent premature polymerization and setting of the mixture. The polymerization catalyist is preferably urea nitrate or ammonium perchlorate. Hydrochloric acid or phosphoric acid may also be used as polymerizer. Hexamethylenetetramine may be added to increase the time taken to polymerize the mass. Compositions are given suitable for the production of coloured smoke, coloured stars, fountains, tourbillons, &c., also for filling rockets. In one example 160 grams of melamineformaldehyde syrup was mixed with 160 grams of ammonium perchlorate, 40 grams of strontium, nitrate and 40 grams of aluminium powder. The mix can be extruded into casings or cast and hardens into a solid mass. If magnesium or iron is used as colouring agent, the particles of metal are first coated with a varnish to prevent reaction with any acid in the composition or produced by the catalyst.
Patent GB-1464704-A (GB)
Title: Process for n,n,n,n,-tetraaryl-quinonediimonium salts
IPC: C25B3/23
Filed: 1975-02-20
Abstract: 1464704 N,N,N<SP>1</SP>,N<SP>1</SP> - Tetraarylquinonediimonium salts AMERICAN CYANAMID CO 20 Feb 1975 [25 Feb 1974] 7253/75 Heading C2C Diimonium compounds of the formula wherein A<SP>1</SP> is a quinonoid radical derived from benzene or naphthalene; B, D, E and F are benzene or naphthalene radicals; R, R 1 , R 2  and R 3  are H, alkyl, alkoxy, alkenyl, aralkyl, aryl, alkaryl, acyl or radicals in which R 4  and R 5  are H, alkyl, alkenyl, aralkyl, aryl, alkaryl or acetyl radicals; and when the said radicals specified for A<SP>1</SP>, B, C, D, E, F, R, R 1 , R 2 , and R 3  are other than H they may be substituted by (C 1 -C 6 ) alkyl, (C 1 -C 6 ) alkoxy, OH, CN, COOH, SO 3 H or halogen; n is 1 or 2; and X- is an anion; are obtained by oxidizing a diamine of the formula wherein A is a benzene or naphthalene radical, with a cupric salt in the presence of an organic solvent. Specified cupric salts are CuCl 2 , Cu(NO 3 ) 2 , CuBr 2 , CuSO 4  and Cu(OCOCH 3 ). Specified solvents are acetone, dimethylformamide and dimethylacetamide. The anion obtained as a result of the reaction with the cupric salt may be exchanged by further reaction with a hexafluoroantimonate or hexafluoroarsenate salt which is soluble in the oxidation reaction solvent.
Patent GB-237214-A (GB)
Title: Improvements in spinning machines for artificial silk
IPC: D01D7/00
Filed: 1925-03-19
Abstract: 237,214. Kohorn & Co., 0., and Lehner, A. July 17. 1924, [Convention date]. Addition to 235,527. Spinning and twisting machines; building- motions; spindle apparatus; spindle-driving apparatus; driving-arrangements.-One or more closed casings containing oil as described in the parent Specification, are adapted to enclose the gearing of artificial silk spinning machines of the centrifugal type. The shafts 61 of the guide rollers 41 and the gearing thereof are mounted in a casing 62; the traverse mechanism of the funnels 54, comprising cams 43 which oscillate a shaft 48 by means of levers 47 and are driven by worm-gearing 66, is mounted in a casing 42; and the driving gear of the centrifugal boxes 55, comprising friction wheels 58, 59, is mounted in a casing 56, the bearings of the shafts 60 being mounted in oil casings 68. Casings are provided for, say, sections of three spinning devices on each side of the machine and are connected bv pipes and may be fed from a common source. The casings 42, 62 may be connected by a lubricant-raising device such as the bucket mechanism described in the parent Specification, or a pump. The U-shaped rails 51 that carry the funnels are provided with guide rollers 67 and guide brackes 52 and are oscillated by arms 49 mounted on the shaft 48 outside the casing.
Patent GB-237556-A (GB)
Title: Improvements in chilling chambers for meat and other food substances
IPC: F25D17/00
Filed: 1925-03-19
Abstract: 237,556. Haysun, C. H. M. Jan. 12, 1925, [Convention date]. Lift-valves; locking catches.-In a chilling-chamber for carcasses of meat &c. wherein a positive circulation of the air in a closed cycle is effected by a fan, the air inlet and outlet openings in the floor and ceiling respectively are controlled by adjustable valves 8, 9 of improved construction. The inlet valves comprise discs 8 carried on stems 18, Fig. 4, which may be threaded for manual adjustment in the crossmember 17 of a bushing 16 secured in the floor opening by a flange 14. Preferably, however, the valve is adjustably set by engaging a cross-pin 21 on the stem with one of a series of steps 19 on a member on the bushing, the pipes being adjustable in length and also angularly about T- pieces. The outlet valve comprises a disc 9, Fig. 8, loosely mounted on a stem 23 adjustable in the top of a bushing 28, the disc having pins 25 engaging holes in the bushing and ceiling so as to centre the valve during adjustment. In a modified form of inlet valve, the stem below the disc is fitted with curved vanes serving to give a whirling motion to the air and to guide the valve in the bushing.
Patent GB-287059-A (GB)
Title: Improvements in and relating to electric relays
IPC: H03K17/54
Filed: 1928-03-12
Abstract: 287,059. Lorenz Akt.-Ges., C. March 10, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Thermionic relays. - To prevent the sticking of contacts of sensitive relays, particularly of the moving - coil type, the movable contact is arranged, when brought into engagement with a fixed contact to apply a negative potential to the grid of an electron tube, the consequent variation of the current in the anode circuit operating a. relay or indicating instrument included therein. As shown in the Figure, when the moving coil 6 is excited to bring contacts 1, 3 into engagement a negative potential is applied to the grid of the electron tube 2 and the variation in anode current operates a relay 8 or indicating instrument connected in the anode circuit.
Patent GB-1219182-A (GB)
Title: Improvements in or relating to the production of cyanogen chloride
IPC: C01C3/00
Filed: 1968-02-16
Abstract: 1,219,182. Cyanogen chloride. AGRIPAT S.A. 16 Feb., 1968 [17 Feb., 1967], No. 7597/68. Heading C1A. Cyanogen chloride is prepared by flowing water downwardly through a perforated plate column and passing gaseous chlorine upwardly through the column and flowing gaseous hydrogen cyanide into the column. The temperature in the reaction zone of the column is controlled by extracting heat from the reaction zone. The relative proportions of water, chlorine and hydrogen cyanide are adjusted so as to produce hydrochloric acid at the bottom of the column at a concentration of between 5% and 23% weight. Gaseous cyanogen chloride flows up through the scrubber and is washed by the down-flowing water. The hydrochloric acid is saturated with chlorine and cyanogen chloride which may be stripped from the acid to improve the efficiency of the process. The hydrochloric acid formed is sufficiently concentrated to be a useful by-product.
Patent GB-1163961-A (GB)
Title: Apparatus for Treating Textile Fibres or Slivers
Inventor: BRAMWELL MYLES IVOR
IPC: D06B3/02
Filed: 1966-02-22
Abstract: 1,163,961. Conveying textile materials through liquid treatment baths. TAYLOR, WORDSWORTH & CO. Ltd. 22 Feb., 1967 1[22 Feb., 1966], No. 7741/66. Heading D1L. Textile fibres or slivers are conveyed through a bath of liquid 1 on a conveyor 2 which passes around and drivably engages the underside of a rotary member 3. The conveyor comprises a plurality of transverse slats 4 linked at their ends in uniformly spaced relationship and is driven by a sprocket 7. The rotary member is in the form of a cape wheel comprising a pair of end plates 14 which are peripherally toothed to form sprockets suited to the pitch of the conveyor slats and are held apart by transverse slats 16. By suitable relative positioning of the slats 16 and the slats 4 of the conveyor the conveyed material can be subjected to a squeezing pressure while it is conveyed around the underside of the cape wheel. Correct tracking of the conveyor is ensured by the provision of guide plates against which the ends of the conveyor slats slide. A pair of squeeze rollers 10, 11 are arranged at the exit end of the bath.
Patent GB-584265-A (GB)
Title: Improved method of coating lenses and other articles to reduce surface reflection and articles coated thereby
IPC: G02B1/10
Filed: 1944-04-25
Abstract: A solution of (a) a solvent, (b) a silicon compound, and (c) an acid is applied to and evaporated on lenses or other articles (including plastic and metal articles) in such a manner that an optical reflection reducing film of silicon dioxide of the required thickness and index of refraction (see Group XX) is deposited.  Suitable organic solvents may comprise one or more of the following: ethyl or methyl acetate or alcohol, denatured alcohol, amyl acetate, isopropylalcohol, cellosolve, butyl cellosolve, butyl alcohol.  The silicon compound may be tetraethylorthosilicate, an alkyl silicate such as tetramethylorthosilicate or other silicic acid esters. Hydrochloric, nitric, sulphuric, hydrobromic or other acid inert with respect to silica may be used.  After "ageing," the solution is applied, e.g., by immersion of the article, even distribution being secured in the case of lenses &c. by spinning, and in the case of larger surfaces by multiple dips in a more dilute solution followed by draining.  The coating thus applied may be hardened by moist heat treatment, by subjection to the action of cool or warm water or by exposure at room temperature. To modify further the porosity of the coating such substances as urea, paraphenylenediaminedihydrochloride, glycerine, caffein hydrochloride, magnesium chloride or calcium chloride may be added to the original solution, to be leached out from the coating, after hardening, by means of water.  The solution may also include dyes, pigments, fluorescent compounds or compounds capable of absorbing ultra-violet radiation.  When applied to plastic materials the coating forms a surface of increased abrasive resistance which will protect the materials from attack by liquids or their vapours in which they would normally dissolve.