baber/WOPTO huggingface dataset:
Patent GB-801676-A (GB)
Title: Infinitely variable regulating and reversing gear
IPC: F16H15/04
Filed: 1956-08-03
Abstract: 801,676. Variable-speed gearing; friction gearing. FARBENFABRIKEN BAYER A.G. Aug. 3, 1956 [Aug. 5, 1955], No. 24033/56. Classes 80 (1) and 80 (2). A continuously variable ratio gear which can drive either forwards or in rereverse comprises a gear member either made of or covered with a resilient wear-resistant material into which are pressed driving and driven grooved or toothed wheels. The gear member may be a belt or chain. As shown, a toothed driving gear 5 is pushed into a layer of resilient material 4 on a disc 2 rotatably supported by bearings 3 in a casing 1, a driven gear 8 similarly engaging another layer of resilient material on the other side of the disc. The driving and driven gears 5, 8 are moved axially to vary the velocity ratio by turning threaded spindles 7, 10 co-operating with control forks 6, 9. The resilient material 4 may be a cross-linked reaction product of polyesters and polyisocyanates. Instead of the manual control shown, the ratio selecting positions of the driving and driven gears 5, 8 may be controlled electrically, pneumatically or hydraulically.
Patent GB-1091912-A (GB)
Title: Injection moulding tools
Inventor: MANN JAMES WADSWORTH
IPC: B29C45/26
Filed: 1964-06-10
Abstract: 1,091,912. Injection moulding. JOSEPH LUCAS (INDUSTRIES) Ltd. June 11, 1965 [June 10, 1964], No. 24033/64. Heading B5A. The adjacent faces of two die halves 10, 11, in which a plurality of cavities 13 are defined are spaced apart, as at 14, when in the closed position so that the moulded components are joined by a substantially continuous web of the injected material. As shown, the components are rubber cup members.
Patent GB-989129-A (GB)
Title: Apparatus and method for reducing logs and sawmilling
IPC: B27B1/00
Filed: 1963-06-18
Abstract: 989,129. Woodworking. GRIFFWOOD Inc. June 18, 1963 [July 3, 1962], No. 24220/63. Heading BSL. A method of reducing logs and for producing as a by-product chips of generally predetermined length comprises feeding a log between one or more pairs of cutter members arranged to remove wood particles from opposite sides of the log, the cutter members comprising individual cutters mounted side-by-side and with the teeth of contiguous individual cutters offset from each other. The cutters are arranged to cut into the material to a depth of approximately <SP>1</SP>/ 5 th to <SP>1</SP>/ 20 th of the diameter of the cutters and the rate of feed of the logs is such that the bite of the teeth of the cutters is substantially in the range of <SP>1</SP>/ 8 th to 1 inch. In apparatus for carrying out the method, the log 2, Figs. 1 and 2, is fed by a conveyer 10 between one or more pairs of spaced chipping cutters 11, 12, 13, each of which consists of a plurality of toothed discs 21 mounted on shafts 24 rotated by a belt-drive 28 from a motor 26, the teeth of adjacent discs being offset. A roller 16 on a shaft 17 is yieldablymounted in bearings 18 to press the log against the conveyer. The log, which now has flat sides, is then passed by rollers 14, 15 to a further array of horizontally-mounted chipping cutters to produce a square cant which may have rounded corners. The cant is then sawn into boards, those boards which have rounded edges being reduced to squared shape or particles by being passed between chipping cutters 46, 47, 48, Fig. 6, and under a vertically adjustable chipping cutter 50. In another embodiment, one or both sides of a log is/are formed with a flat vertical face by chipping cutters 71, 72, 73, Fig. 8, rotated about horizontal axes. Specification 989,128 and U.S.A. Specification 3,024,820 are referred to.
Patent GB-886282-A (GB)
Title: Improvements in or relating to concrete pumps
Inventor: SHIMATANI MINESABURO
IPC: F04B7/00
Filed: 1959-07-15
Abstract: 886,282. Reciprocating pumps. SEIWA MACHINERY CO. Ltd. July 15, 1959, No. 24354/59. Class 102(1). A concrete pump comprises a pump piston actuated by a crankshaft driven through gearing 17 by an electric motor 18; the gearing also drives a valve 20 which distributes pressure liquid to cylinders 8, 8<SP>1</SP> and 12, 12<SP>1</SP> having pistons 7, 7<SP>1</SP> and 11, 11<SP>1</SP> respectively connected to an inlet valve 2 and an outlet valve 4, from a system comprising a pump 24 driven by an electric motor 29, a reservoir 22, an accumulator 25 and relief valve 34, so that at the end of each stroke of the pump piston the positions of the valves are reversed. The inlet valve 2 is mounted on a shaft 5 connected to a link 6 to the ends of which the pistons 7, 7<SP>1</SP> are connected. The cylinders 8, 8<SP>1</SP> are mounted on a member which is angularly adjustable to vary the opening of the valve. The outlet valve is similarly mounted.
Patent GB-382018-A (GB)
Title: Improvements relating to continuously-working absorption refrigerating machines
IPC: F25B15/10
Filed: 1931-08-29
Abstract: 382,018. Refrigerating. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Aug. 29, 1931, No. 24365. Convention date, Aug. 30, 1930. [Class 29.] Absorption machines and systems.-In a continuously acting machine in which all parts are in open communication with one another and in which the pressure difference between the generator and the absorber is balanced by columns of the liquid absorbent, a mixture of potassium and sodium hydroxides is used as the absorbent. The mixture may contain 40 to 60 per cent of potassium hydroxide. To prevent decomposition of the mixture a small percentage, e.g. 0À2 per cent, of ammonium bichromate may be added to it.
Patent GB-264104-A (GB)
Title: Improvements in milk purifiers or filters
IPC: B01D25/00
Filed: 1926-10-02
Abstract: 264,104. Carbines, F. O. Oct. 2, 1926. Filters having sheet filtering - materials. - A milk filter comprises superposed sections B, C with filter elements K held between the joints, the lower section B having an inlet H for the milk to be filtered and the top section C an outlet D for the filtrate. The section B is formed with a sump F and drainage outlet G and may be fitted with a gauze strainer J. Each filter element consists of a cloth K drawn over a ring M and clamped by a ring N. The edges of the walls of the sections are formed with recessed flanges to receive rubber rings P, which in addition to forming liquid tight joints serve to hold the rings N against ledges O on which the filter elements are supported. The sections are held together by tie rods R extending upward from a base A and threaded to receive nuts R<1> which engage lugs on a domed cover E.
Patent GB-1071074-A (GB)
Title: Dyeing and printing process
Inventor: CAPPONI MIRO
IPC: D06P1/613
Filed: 1964-06-12
Abstract: Dyeing or printing vegetable fibres, alone or blended with other fibres, by applying a solution of a dye suitable for after-coppering, drying and exposing to dry heat in the presence of at least one anhydrous assistant capable of dissolving the after-coppering dye and thus causing fixation followed by after-coppering the fixed dye or print.  The fibres may be cotton or viscose and may be blended with polyamide, polyester, acrylic or triacetate fibres in which case the dye liquor may also contain a disperse dye.  The anhydrous assistants may be added to the dye liquor or paste which may have a pH range of 6-11 and among the many assistants specified the following are typical:-urea, thiourea, dimethyl formamide, polyacrylic acid amide and salts, morpholine, diethanolamine, alcohols, ketones, esters, glycols, polyglycols, glycolethers, esters and acetates, ethylene oxide-alkyl phenols and-fatty alcohol condensates and esters thereof, formaldehyde-phenol or -naphtholsulphonic acid condensates or their sulphonation or sulphation products and highly sulphonated of higher unsaturated fatty acids.  The heat treatment may be at 160-230 DEG C. and the after-coppering may be effected with a solution of copper sulphate or acetate at pH 2-7.5 especially in the presence of a cationic assistant (many specified).  Examples of dyeing and printing are given.
Patent GB-730084-A (GB)
Title: Improvements in and relating to patterning mechanisms for knitting machines
Inventor: DEANS FREDERICK EDWARD
IPC: D04B9/10
Filed: 1950-10-09
Abstract: 730,084. Knitting-machines. BENTLEY ENGINEERING CO., Ltd. Oct. 2, 1951 [Oct. 9, 1950], No. 24566/50. Class 74 (2). The pattern drum for a knitting-machine and particularly a superposed cylinder machine is adapted to be racked in two directions. The drum which is preferably a pin drum is arranged to actuate levers 41 which rock about a fulcrum plate 54 to influence selector cams 51 controlling jacks for patterning, as described in Specification 730,083. A square-toothed rack wheel 17 is provided at the top end of the drum and is racked in opposite directions by two opposed clawkers 18, 19, a bluff plate 20 being provided and controlled by pins in the drum to be in either of two positions so as to render one of the clawkers inoperative. The clawkers are attached to a slide 35 which is spring-urged towards the needle cylinder of the machine to engage a cam 36 which imparts a reciprocatory motion to the slide thereby operating the clawkers. When it is desired to stop racking of the drum a catch 38 is released to engage a corresponding catch 39 on the slide and holds the slide inoperative. In addition, the levers 41 may be rendered inoperative by moving the fulcrum plate 54, thereby moving the levers to an inoperative position, at the same time releasing a catch 42 which engages the catch 39 on the slide to render the clawkers inoperative. Since, however, it is desirable that the drum should come to rest in a position where patterning commences, a corrector plate 45 is attached to the drum which prevents the catch 42 from engaging with the slide until a recess 46 in the corrector plate releases it. This recess corresponds with the commencement of the pattern. The fulcrum plate 54 may be made in two parts both of which are separately operable, thereby enabling the upper part of the drum to be devoted to one pattern and the lower part to another. Reference has been directed by the Comptroller to Specification 443,736.
Patent GB-863777-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J75/00
Filed: 1957-08-02
Abstract: The invention comprises a steroid compound having the formula: <FORM:0863777/IV (b)/1> wherein R is a alkyl or aryl radical and R1 is a hydroxy or keto group, a process for the preparation thereof which comprises dehalogenating the corresponding 6-alkyl or 6-aryl-21-iodo-pregnene to obtain 6-methyl-9a -fluoro-11b , 17a - dihydroxy- 4- pregnene- 3, 20- dione and if desired oxidising the 11-hydroxy group if present to an 11-keto group. The dehalogenation may be effected by a reducing agent such as zinc dust and acetic acid, sodium or potassium thiosulphate or sodium bisulphate.  In preparing the 21-iodo compound 9a -fluoro-6-methyl hydrocortisone is treated with the acid halide of an organic sulphonic acid such as methanesulphonic acid, ethanesulphonic acid, propanesulphonic acid, benzenesulphonic acid, p-toluenesulphonic acid and a  or b -naphthanesulphonic acids, in a solvent to produce a 6- methyl- 9a - fluoro- 11b , 17a , 21-trihydroxy-4-pregnene-3, 20-dione 21-alkyl or arylsulphonate, which is reacted directly with sodium or potassium iodide in acetone solution.  In the iodination step a molar excess of sodium iodide is preferred.  The 6-methyl-9a -fluoro- 11b , 17a - dihydroxy- 4- pregnene- 3, 20 dione may be oxidised to the corresponding 6-methyl-9a -fluoro- 17a -hydroxy-4-pregnene-3, 11, 20-trione in acetic acid solution with chromic anhydride or with a halo amide or imide of an acid e.g. n-bromoacetamide, N-chlorosuccimide or nbromosuccimide.  Examples describe the preparation of 6a -methyl- 9a - fluoro- 11b - 17a - dihydroxy- 4-pregnene-3, 20-dione, 6a -methyl-9a -fluoro-17a -hydroxy-3, 11, 20 trione and other 6-substituted steroids.  Specification 863,782 is referred to.ALSO:Steroid compounds having the formula <FORM:0863777/VI/1> wherein R is an alkyl or aryl radical and R1 is a hydroxy or keto group are employed in oral, parenteral and topical compositions.  The topical compositions may take the form of ointments, lotions, jellies, creams, suppositories, bougies and aqueous suspensions.  A dermatological and ophthalmic ointment incorporating 6a  - methyl - 9a  - fluoro - 11b ,17a  - dihydroxy - 4 - pregnene - 3,20 - dione may also contain antibiotics such as neomycin sulphate, bacitracin, circulin, polymyxin B sulphate, gramicidin, streptomycin sulphate, dihydrostreptomycin sulphate, oxytetracycline, chlorotetracycline, tetracycline and chloramphenicol, and the sulphonamides.  Specification 863,782 is referred to.
Patent GB-1437331-A (GB)
Title: Moulding of frozen foodstuffs
IPC: A22C25/00
Filed: 1972-05-25
Abstract: 1437331 Moulding frozen foodstuffs UNILEVER Ltd 23 May 1973 [25 May 1972] 24685/72 Heading B5A Apparatus for moulding frozen food products comprises a compression chamber 1 leading to a plurality of mould cavities 12 in a moulding chamber block 8, the block 8 being displaceable transversely to an ejection position (Fig. 2, not shown), the moulding chamber block 8 being divided by a demarcation surface 11 into separate sections 9, 10 which are displaceable relatively to one another to shear the moulded portions into smaller portions of non-rectangular cross-section. Ejection is effected by ejection fingers 18 having staggered ends so that each engages the material at a slightly different time. As shown the demarcation surface 11 is an oblique planar surface which subdivides the moulded portion into portions of trapezoidal shape. Portions of other shapes may be produced by appropriately shaping the surface 11. The mould sections 9, 10 are displaced by hydraulic cylinders 14, 15, the latter having a longer stroke. In a modification (not shown) the separate sections are moved out at different times to effect shearing and then moved back into alignment so that a single set of ejection fingers ejects both sets of moulded portions.
Patent GB-228591-A (GB)
Title: Improvements in and relating to quick-action air-break electric switches
IPC: H01H33/06
Filed: 1923-10-04
Abstract: 228,591. Baur, M. F. Oct. 4, 1923. Arc-rupturing devices. -A quick-action airbreak switch has two main contacts and one or more pairs of subsidiary contacts in parallel, one or more plates of insulating material being adapted to be rapidly inserted between the subsidiary contacts to break the circuit and to lengthen the air gap between them. As shown in Figs. 1 and 2 the main contacts 103, 104 are arranged to be bridged by a brush 31 carried by a vertically-movable switching frame a which also carries an insulating plate 1 the lower edge of which is tapered. Auxiliary contacts 8, 36 are mounted on pivoted rods 11, 37 and are pressed together by springs 14, 15, the rods 11, 37 being connected by leads 102, 101 to the main contacts so that normally the three pairs of subsidiary contacts are connected in parallel with the main contacts. On lowering the frame a, by quick-acting mechanism the brush 31 first breaks contact with the main contacts 103, 104 after which the circuit is broken by the insulating plate 1 moving between the contacts 8, 36. Below the contacts 8, 36 are disposed rollers 4, 34 carried by arms 6, 35 secured to the shafts 11, 37 and these rollers are engaged by the lower tapered end of the frame a to draw the contacts 8, 36 from the sides of the insulating plate 1. To prevent the lengthening of the arc between the subsidiary contacts, rollers 16, 33 engage its two surfaces, the lower of the plate 1 finally passing between fixed insulating plates 18, 32. Numerous modified arrangements of the auxiliary contacts are described. In Fig. 3 the auxiliary contacts 47, 48 normally engage in an opening 44 of a fixed insulating plate 43 and are separated by the downward motion of insulating plates 41, 42. In Fig. 5 the subsidiary contacts are in the form of floating plates spring pressed together and separated by the downward movement of the insulating plate 56. A number of such contacts in series may be provided as shown in Fig. 13 separated by insulating plates 93 .. 116 carried by the movable frame 19. Alternative means described for preventing the lengthening of the arc between the subsidiary contacts include spring pressed plungers bearing on the sides of the insulating plate 1, vessels of insulating liquid into which the lower end of the plate 1 may slip after the contacts are separated and stationary insulating plates separated from the surface of the movable plate by narrow air gaps.
Patent GB-725792-A (GB)
Title: Improvements in variable speed driving mechanism for beaming machines and like textile machines
IPC: D02H3/00
Filed: 1949-09-27
Abstract: 725,792. Change-speed control. HOLT, Ltd., T., and LEE, G. Sept. 27, 1950 [Sept. 27, 1949], No. 24730/49. Drawings to Specification. Class 80 (2) [Also in Group IX] To keep a constant tension in yarn being wound on a beam despite the increasing driving torque needed as the diameter builds up, the beam drive includes a positively-infinitely-variable gear and a slipping friction clutch. The input and output sides of the clutch are coupled to the sun and annulus respectively of an epicyclic gear in such a way that when the yarn tension causes 10 per cent. slip in the clutch, the planet carrier of the epicyclic gear remains stationary; when the slip exceeds this value, the planet carrier rotates and adjusts the variable gear to reduce the speed of the beam. The variable gear is re-set in readiness for the next winding operation by clutching its output side to the annulus of the epicyclic gear, whereby the planet carrier is driven rapidly to return the variable gear to its initial adjustment.
Patent GB-1342565-A (GB)
Title: Mouldable compositions for articles which are resistant to shock  and to wear at high termperature
IPC: C08L79/08
Filed: 1972-05-26
Abstract: 1342565 Mouldable polyimide compositions RHONE-POULENC SA 26 May 1972 [26 May 1971 2 Aug 1971] 25076/72 Heading C3R A mouldable composition comprises, by weight: (a) 10 to 70% of a prepolymer binder obtained from 0À55 to 25 mols. of an unsaturated bis-imide per molar NH 2  group of a polyamine R(NH 2 ) x , where x is at least 2 and R an x-valent organic radical, A is a C 2-30  divalent radical and D is unsaturated: (b) 5 to 30% of polyamide-imide and/or aromatic polyamide fibres, the former comprising recurring units where Q contains at least one benzene ring and R 3  is a trivalent aromatic radical; and (c) 20 to 70% of particulate graphite, MoS 2 , lead, bronze or fluorinated hydrocarbon polymers and/or asbestos fibres. Numerous suitable prepolymers (a) and polymers (b) are specified. The polyamide-imide may contain 30 to 100% of the specified units, 0 to 20% units and 0 to 50% unit where M is an alkali or alkaline earth metal ion, p is 1 or 2 and Z is aromatic, aliphatic or cycloaliphatic. They may be prepared from a diisocyanate Q(NCO) 2  and the appropriate anhydride and diacid(s). The fibres (b) may have a length of 0À5 to 20 mm. and gauge of 50 to 20,000 dtex and be in the form of one or more yarns each having 6 to 1000 strands; they may have been wet-spun and stretched. The particulate fillers (c) may have an average particle size of 0À1 to 100 Á; suitable fluorinated hydrocarbon polymers are homopolymers of tetrafluoroethylene or copolymers thereof with hexafluoropropylene. The asbestos fibres may have a length of 0À5 to 20 mm. and diameter of 10 Á to 1 mm. Methods of compounding and moulding the compositions are described. Specified applications are compressor segments, valve seats and brake, clutch or transmission linings. In specific examples, (a) is derived from 2À5 mols. N,N<SP>1</SP>-4,4<SP>1</SP>-bis-(diphenylmethane)-maleimide per mol. of bis-(4-aminophenyl) methane and is in the form of a 50 Á powder; (b) is polym - phenylene - isophthalamide 600 strand 1330 dtex gauge fibre of average length 6 mm. and density 1À38 (Example 1) or similar fibres of a polyamide-imide of I.V. 1À01 from equimolar properties of bis - (4 - isocyanatophenyl) methane and 80/20 molar mixture of trimellitic anhydride and terephthalic acid (Examples 2 and 3); and (c) is a mixture of 1 to 11 Á micronized graphite and 1 to 5 Á per cent S 2 . Reference is made to Specifications 1,190,718, 1,263,234 and 1,280,846.
Patent GB-704411-A (GB)
Title: Improvements in or relating to machines suitable for roughing shoe soles
IPC: A43D37/00
Filed: 1951-10-26
Abstract: 704,411. Grinding roughing-tools. BRITISH UNITED SHOE MACHINERY CO., Ltd., and BOOTHROYD, H. Oct. 24, 1952 [Oct. 26, 1951], No. 25081/51. Class 60 [Also in Group VIII] A machine for roughing the margins of shoe soles (see Group VIII) is provided with an attachment for grinding the tips of the roughing tool comprising a grinding wheel 22 and a jig in which the tool is supported in correct relation to the grinding wheel. The jig consists of an inclined bracket 322 adjustable to and from the grinding wheel and provided with two V-blocks 324, 326 in which the tool is supported. The tool, which consists of two wire strips mounted in a holder 70 with their tips projecting slightly, is correctly positioned in the V-blocks by means of an abutment screw 328 disposed in the block 326 and engaging the end of the 'holder; first one tip is ground and the holder is then rotated in the jig to position the second tip for grinding. The grinding wheel is rotated from an electric motor through a belt-andpulley drive, the belt being movable on to the driving pulley by a clutch lever which is connected with the mechanism of the roughing machine in such a way that it can only be moved to operative position when the sole-carrying carriage is in operative position: in addition, the clutch lever must be moved to inoperative position before this carriage can be moved to operative position.
Patent GB-302335-A (GB)
Title: Method of constructing pneumatic tyre casings
IPC: B29D30/08
Filed: 1928-08-31
Abstract: 302,335. Goodyear Tire & Rubber Co., (Assignees of State, W. C.). Dec. 15, 1927, [Convention date]. Tyre covers, making. - In building a tyre cover, the tread 20 is applied as a complete annulus over the shaped casing 25, which is first collapsed by connection to a suction-device 27, to facilitate assemblage of the tread band, after which the casing is expanded by connection to a pressure-supply 29 and the band rolled down by the usual means. Figs. 5 and 6 show the casing in its collapsed and expanded condition respectively.
Patent GB-182725-A (GB)
Title: Improvements in anti-skid chains for vehicle wheels
IPC: B60C27/06
Filed: 1921-09-23
Abstract: 182,725. Nach's Nachfolger Ges., E., and Badrian, H. Sept. 23, 1921. Tread bands.-Sections of chain cords, or other tension elements e, e<1>, e<11> are wound round the rim and tyre, one end d, d<1>, d<11> of each section being permanently secured to a central ring a not attached to the wheel, theother end k being secured to the ring by means of spring hooks l so as to permit of taking up slack.
Patent GB-212497-A (GB)
Title: Improvements in or relating to tins, cans, boxes and other vessels or containers for packeting granular pulverulent liquid and similar material
IPC: B65D47/06
Filed: 1923-10-10
Abstract: 212,497. Salt Union, Ltd., and Malcolm, G. W. Oct. 10, 1923. Powder distributors.-In a box or container for granular, pulverulent, &c. material of the kind having an open-ended slidable tubular member for pouring out the contents, the tubular member C is capable of occupying a retracted position within the box &c. with its inner end c closed to the passage of the contents when the box &c. is upright. As shown, the end c of the member C rests, in its retracted position, upon a disc or platform D having a conical or similar protuberance which enters the end of the member C, the disc being supported by radial strips d bent and engaged in holes b<1> in the lid or other part of the box &c. Radial fins or a flange may be formed on the member C so that the weight of the material assists the member to open when the box &c. is inverted or the member may be provided with a cord fastened to a hole c<2> for opening purposes.