baber/WOPTO huggingface dataset:
Patent GB-415159-A (GB)
Title: Improvements in jam jars and like containers and in closures therefor
IPC: B65D51/16
Filed: 1933-03-07
Abstract: 415,159. Jars etc.; closures. WALLIS TIN STAMPING CO., Ltd., Carpenters Road, Stratford, London, and JONES, W. B., 56, Barn Hill, Wembley, Middlesex. March 7, 1933, No. 6902. [Classes 66 and 125 (iii).] A jam jar or like container has a one-piece sheet. metal closure comprising a disc secured to the container by integral tongues depending from the periphery of the disc and engaging under a shoulder on the container and the under surface of the disc or the top surface of the rim of the container or both are formed with projections which space the disc from the rim of the container to allow access of air to the contents while excluding dust &c. As shown, the disc 2 is formed with a flange 3 from which the securing tongues depend and the projections 5 are formed by radial depressions in the upper surface of the disc while vertical projections 7 in the flange 3 space the latter from the rim 6 to allow the air access to the space under the disc ; vertical projections may be formed on the rim of the container in place of, or in addition to, the projections 7.
Patent GB-652430-A (GB)
Title: Improvements in or relating to boxes or like containers
IPC: B65D6/16
Filed: 1949-04-04
Abstract: 652,430. Boxes. BENNIE, J. April 4, 1949, No. 6931/48. [Class 18]  Two end pieces 14 of a collapsable box, preferably constructed of aluminium alloy, are hinged to upstanding edges 12 of a base piece 11, and two side pieces 15 are detachable, said side and end pieces having U-shaped channels along their upright edges which slidably interengage and interlock with corner pieces similarly provided with channels when the box is set up. A lid 16 having edges 17 is provided with toggle clips 18 engaging holes or indentations 19 in the box sides. When the box is collapsed, the lid and base form a flat box for the side and end pieces, the toggle clips engaging further holes or indentations 19<SP>1</SP> in the base. A rubber sealing strip 20 may be provided round the inside of the lid, which may serve to render the box water-tight or air-tight, in which case the holes 19 may be replaced by indentations or projections.
Patent GB-830142-A (GB)
Title: Sonic and ultrasonic cutting tools
IPC: A61C3/03
Filed: 1956-03-06
Abstract: The tool bit of a vibratory dental drill, such as those operated ultrasonically, is set at an angle, preferably 45 degrees, and this causes the tip to oscillate in an elliptical path and allow cutting in two or more directions.  Thus the tool may be advanced straight into a tooth to the required depth and then moved sideways to enlarge the hole.  Various shapes of tool are described for different operations including undercutting, treating root canals and periodontal treatment.  A suitable handpiece comprises a hollow handle enclosing a magnetostrictive element connected to the tool-holder and having narrow bore tube directed towards the tip of the tool for carrying a supply of abrasive in liquid to the area being treated.  Specification 602,801 is referred to.
Patent GB-330251-A (GB)
Title: Improvements in and relating to interlocking frames for railway point and signal apparatus
IPC: B61L19/16
Filed: 1929-03-01
Abstract: 330,251. British Power Railway Signal Co., Ltd., Glenn, S. L., and Pierce, E. E. March 1, 1929. Divided on 330,241. Hand-levers, interlocking.-In an interlocking frame a push-button with a spring-pressed plunger is associated with each operating lever and is locked in normal position until the lever is moved to a definite position and when pushed inwardly to make the desired electrical contacts is then locked until the lever returns to normal. The pushbutton device 91 is shown associated with a miniature lever 1 of an interlocking frame as described in Specification 330,241. The push-button plunger 90 is locked by the engagement in locking faces 108 or 110 thereof of a spring-pressed collar 104 or 105 slidable on a rod 98 which is moved bv a cam web 102 on the electrical lock tappet or transmission bar 38 of the lever 1. The movement of the rod 98 disengages by means of a collar 106 that spring-pressed collar which is in engagement. The push-button 91 is returned by its spring 95 when the lever 1 is returned to normal.
Patent GB-125775-A (GB)
Title: Improvements in or relating to Exhaust Silencers for Internal Combustion Engines.
IPC: F01N13/08
Filed: 1918-04-27
Abstract: 125,775. Vickers, Ltd., and Spencer, R. P. April 27, 1918. Exhaust-silencers. - In a silencer for aircraft or other engines, the exhaust issues with a whirling motion and mixes with a surrounding stream of air. The exhaust passes into a tapered inner tube A open at the end B and formed with helically-arranged slots C, adjacent to which are curved deflectors D carried by an outer air conduit. The air and exhaust move in paths indicated by arrows I, H respectively.
Patent GB-535558-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B15/20
Filed: 1940-04-20
Abstract: 535,558. Cellulose-derivative and syntheticresin articles. COTTON, Ltd.. W., and WILDERS, G. April 20, 1940, No. 7148. [Classes 2 (ii) and 2 (iii)] [Also in Group VIII] Needle-bars of knitting-machines are made from thermo-plastic material incorporating a filler. The plastic may be synthetic resin of the phenol-formaldehyde or phenol-cresol-formaldehyde type, cellulose acetate or nitrocellulose, with a reinforcement or filler of metal rods, wires or mesh, and/or fabric, paper or fibrous material. Laminations of paper or fabric impregnated with phenol-formaldehyde or cresol-formaldehyde resin are particularly suitable.
Patent GB-197787-A (GB)
Title: Improvements in or relating to valves for pneumatic tyres
IPC: F16K15/20
Filed: 1922-03-10
Abstract: 197,787. Schrader's Son, Inc., A., and Schweinert, M. C. March 10, 1922, Addition to 157,174. Tyre-inflating valves. -In valves of the type described in the parent Specification, t h e spindle n<1> of the lower valve n is of such a length that when the pressure gauge is applied to the open spindle s it depresses both spindle and their corresponding valves simultaneously to open them. The valve u, which can be inserted through the top of the supplemental valve casing b, is of a type differing from that of the valve n which is inserted through the bottom of the casing b. The coupling h surrounding the casing b is swivelled thereto or may be loose thereon.
Patent GB-550720-A (GB)
Title: An improved dispensing capsule
IPC: A61J1/06
Filed: 1941-06-06
Abstract: 550,720. Capsules. SCHERER, R. P. June 6, 1941, No. 7213. Convention date, June 6, 1940. [Class 81 (i)] A dispensing capsule, formed of gelatine or other flexible plastic material, is provided with an element, not forming part of the capsule body, attached positively or adhesively to the wall of the capsule but not protruding therethrough, which on removal causes puncture of the wall to provide a discharge opening. The opening element may be formed of metal or other material and comprises a handle part 14 and a projecting part 18 which extends into the capusle wall and is attached to it either by adhesive as in the form shown in Fig. 1 or positively as in the forms shown in Figs. 7 and 8 in which the capusle wall is moulded round a contracted part of the projection. The opening element is attached to the capsule by pressing it into contact while in heated condition so that the capsule material is stretched to produce a thinned-out portion 24 readily fractured by the removal of the opening element. Specification 395,546 is referred to.
Patent GB-725842-A (GB)
Title: Improvements in electrically operated hand tools
IPC: H02K7/14
Filed: 1953-03-17
Abstract: 725,842. Motor-driving arrangements. BOSCH GES., R. March 17, 1953 [April 30, 1952], No. 7271/53. Class 35. [Also in Groups XXII and XXIII] A portable electrically driven hand tool such as a grinding or drilling machine has a metallic supporting member 41 carrying on one side a gear casing 31 and on the other side an electric motor 11 covered by an insulating cap 21, and an insulating member 17 clamped between the motor and the support 41 having a centreing surface(s) for the motor and being itself centred in the support 41. The latter is cast from light metal and is in the form of a tube open at both ends and having a perforated transverse wall 42. The motor 11 is mainly supported by the support 41 by bolts 43 threaded into a tension plate 20 having radial projections 20a engaging slots in the motor casing 16. The insulating plate 17 insulates the support 41 from the casing 16 and the bolts 43 are almost completely covered by insulating bushes 46, furthermore the insulating plate 17 has an annular groove 44 the outer walls of which help to centre the casing 16. The gear side bearing 15 of the motor shaft is located in a bore provided in the plate 17. At the inner end of the cap 21 there are mounted a condenser 27, a reversing switch 26 and contact springs 28, 29 engaging contact strips 52, 53, Fig. 3 (not shown), so as to form an electrical connection of the motor with the incoming leads 22 when the switch is on. With this mounting arrangement, the supply to the motor is completely cut off as soon as the cap 21 is removed.
Patent GB-1499231-A (GB)
Title: Flail type harvester
IPC: A01D34/535
Filed: 1976-02-25
Abstract: 1499231 Flail type harvester A J VOGELENZANG 25 Feb 1976 [5 March 1975] 07355/76 Heading A1F Flails 23 are secured to a rotor shaft 4 of a flail type harvester, by coupling means, each of which comprises a bolt 15, 26 extending diametrically through the shaft 4 and carrying a hook at one or each end. One end of each bolt is screw threaded to receive a nut 16, 27. A hook is integrally formed at an end of the bolt 15 but hooks 25 have bored flange plates through which the bolt 26 passes. Flails 23 pivot into the dotted line position shown in Fig. 1 on contact with an obstacle.
Patent GB-851024-A (GB)
Title: Improvements in machines for stacking containers
IPC: B65G57/30
Filed: 1959-03-03
Abstract: 851,024. Stacking apparatus. BARANCIK, C. March 3, 1959 [June 12, 1958], No. 7433/59. Class 94(1). A stacking apparatus for crates &c., of the kind in which the articles are raised to form a column, being added to the base of the column and held by dogs until raised by the next article, has a through conveyer which delivers each article to the column elevator and removes the finished stack when the latter is lowered on to it. The apparatus has mechanical automatic controls and is adjustable for various article sizes. Articles e.g. crates C enter the stacker from the right on the conveyer 11, as shown in Fig. 3, the first engaging a trip lever 167 to cause a roller stop 140 to project into the path of those following and stop them. The first crate then abuts a lever stop 61 and operates a switch through levers 63, 65 causing an elevator 16 to rise beneath and engage the crate with pivoted latches 36, Figs. 5, 11. The elevator carries the crate past opposed pairs of dogs 17 and then descends, its movement being imparted by a crank 52 driven from a motor 14. In its downward movement, the elevator engages a lever 151 causing pivoting of a rod 148, Figs. 1, 3, which withdraws the roller stop 140 to re-latch it in its retracted position and permit another crate to advance. When the last crate is raised, the uppermost crate of the stack thrusts upwards on adjustable bar 19. The bar is connected by rods 93, Figs. 1, 13, to cam elements 96 which in rising retract the dogs 17. A latch 100 prevents return of the elements and dogs while the elevator descends to deposit the stack on the conveyer 11. The raising of the plate 19, through leverage 120-122, 125, 63, Fig. 1, pivots the stop 61 out of its crate engaging position and thus the stack can pass out of the machine. In passing, the stack strikes a lever 20, Figs. 3, 13, whereby the latch 100 is withdrawn permitting lowering of the plate 19 and cam elements 96 with consequent release of the dogs 17 for a further stacking cycle and replacement of the stop 61 in crate engaging position.
Patent GB-906117-A (GB)
Title: Improvements in or relating to vinyl acetate copolymer compositions
Inventor: MAYNE JOHN EDWIN OAKLEY
IPC: C08L91/00
Filed: 1958-03-07
Abstract: A composition comprises a copolymer of vinyl acetate with a copolymerizable ester in which the average number of carbon atoms in the side chains attached to the copolymer chain is greater than 2 but not more than 6 in admixture with an amount of a drying or semi-drying oil such as to produce a substantially compatible film on drying.  The copolymerizable ester may be a vinyl ester of a fatty acid containing at least 4 carbon atoms in the molecule such as commercial capric acid, stearic acid or myristic acid, an alkyl diester of an unsaturated polybasic carboxylic acid such as a maleate, fumarate or itaconate; or an acrylate.  The oil may be linseed oil, tung oil, or dehydrated castor oil.  Non-ionic or ionic emulsifying agents such as sulphated or sulphonated soaps may be added.  In a typical example, a copolymer of vinyl acetate and vinyl caprate is prepared by adding these monomers continuously at 60 DEG C. to a mixture of hydroxyethyl cellulose, dodecyl toluene sulphonic acid, sodium salt, polyethylene oxide alkyl ether, sodium bicarbonate, and potassium persulphate in water over a period of 2 1/2 hours.  After cooling linseed oil or other oil is then added and the product filmed.
Patent GB-807837-A (GB)
Title: New tertiary amines and their salts and process for their preparation
IPC: C07D295/03
Filed: 1955-09-23
Abstract: The invention comprises tertiary amines of the general formula <FORM:0807837/IV (b)/1> and acid addition and quaternary salts thereof, in which R1 and R2 are each an alkyl or hydroxyalkyl group of 1-6 carbon atoms or a cycloalkyl, monocyclic aryl, or monocyclic aralkyl group or NR1R2 together forms a heterocyclic ring which may contain a further hetero-atom, for example a pyrrolidine, piperidine or morpholine ring, R3 is hydrogen or an hydroxyl or an alkyl or alkoxy group of 1-6 carbon atoms, R4 is hydrogen or together with R3 forms a methylene dioxy group, R5 is hydrogen or an alkyl or alkoxy group of 1-3 carbon atoms and Z is a straight or branched chain alkylene residue of 2-4 carbon atoms.  The amines are prepared by condensing a tertiary aminonitrile of the formula <FORM:0807837/IV (b)/2> with an organo-magnesium halide of the formula Hal-Mg-Z-C6H4-R5 or, in the case where Z contains 2 or 3 carbon atoms, by condensing a nitrile of the formula <FORM:0807837/IV (b)/3> with an organo-magnesium halide of the formula <FORM:0807837/IV (b)/4> the reactions being carried out in an inert solvent such as ether, dioxan, benzene, dibutyl ether or a mixture of benzene and tetrahydrofuran, preferably at the boiling-point of the solvent, followed by hydrolytic decomposition of the initial condensation product.  The amines may be converted into their acid addition salts such as the hydrochloride, hydrobromide, sulphate, phosphate, nitrate, acetate, propionate, butyrate, valerate, oxalate, malonate, succinate, maleate, fumarate, lactate, tartrate, citrate, malate, benzoate, phthalate, cinnamate, salicylate, nicotinate or furan-2-carboxylate, or into their quaternary salts with alkyl halides, dimethyl sulphate, diethyl sulphate, alkyl p-toluenesulphonates, cyclohexyl halides or cyclopentyl halides. Preferred products include the 1-(4-methoxyphenyl)-1-dimethylamino -, 1 - (4 - ethoxyphenyl) - 1 - dimethylamino -, 1 - (4 - ethoxyphenyl) - 1 - diethylamino -, 1 - (4 - methoxyphenyl) - 1 - pyrrolidino -, 1 - (4 - methylphenyl) - 1 - dimethylamino - and 1 - (4 - methylphenyl) - 1 - piperidino -, 3 - methyl - 3 - phenyl - propanes; the 1-(3:4 - methylenedioxyphenyl) - 1 - dimethylamino-, 1-(4-methylphenyl)-1-piperidino-, 1-(4-methylphenyl) - 1 - dimethylamino -, 1 - (4 - isopropylphenyl) - 2 - methyl - 3 - dimethylamino- and 1 - phenyl - 3 - dimethylamino -, 3 - phenyl - propanes; 1:4 - diphenyl - 1 - pyrrolidino - butane; 1 - phenyl - 1 - methyl - 2 - dimethylamino - 2 - (4 - methoxyphenyl) - ethane and 1 - phenyl - 3 - dimethylamino - 3 - (4 - methoxyphenyl) - propane.  Many other examples are given.  a  - Tertiary amino nitriles of the formul II and III are made by known methods, for example by the reaction of the appropriate phenylalkyl aldehyde with potassium cyanide and a secondary amine of the formula NHR1R2.
Patent GB-342570-A (GB)
Title: Improvements in and relating to bearings for the rolls of rolling mills
IPC: A47L5/18
Filed: 1930-03-07
Abstract: 342,570. Bearings. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. March 7, 1930, No. 7522. Convention date, April 24, 1929. [Class 12 (i).] Pressure rolls for roll ing mills. In order to compensate for whip in the shafts the usual fit ting containing the two ball or roller bearing 3, 4 is made in separate halves as shown at 5, 6 while a pressure member 8 having curved bearing surfaces 9, 10, 11 is interposed between the parts 5, 6 and the pres sure spindle 7. The parts 5, 6 are flexibly connected together by bolts 12 and springs 14 and a packing-ring 17 is placed between them. Reference has been directed by the Comptroller to Specification 335,120, [Class 12 (i), Bearings &c.].
Patent GB-371119-A (GB)
Title: Cutting machine with rotating knife disc for cutting small boards, as, for instance,shingles and the like
IPC: B27M3/02
Filed: 1931-03-12
Abstract: 371,119. Cutting small boards. HELLMERING, C., (trading as HELLMERING MASCHINENFABRIK, C.), 23, Dovenstorsteinweg, Bremen, Germany. March 12, 1931, No. 7628. Convention date, April 9, 1930. [Class 145 (i).] A rotating disc 1 carrying knives 2 for cutting small boards, such as shingles, from a piece of work 7, is guided by rollers 10, 12, set to include a segment of 90‹, within which the work support is situated. The knives may be inclined radially, one inwards and one outwards, as shown in Fig. 5, so as to cut tapered boards. The wood is fed by means of a fence 8, which may be serrated on its front face, actuated by a screw 23 driven through a friction coupling 28 on a countershaft 21, so that the feed pressure on the wood is limited by the compression of the adjustable coupling springs 26.
Patent GB-512647-A (GB)
Title: Improvements in or relating to absorber-generators for absorption refrigerators
IPC: F25B35/04
Filed: 1938-03-11
Abstract: 512,647. Refrigerating. SIEMENS-SCHUCKERTWERKE AKT.-GES. March 11, 1938, No. 7684. Convention date, March 11, 1937. [Class 29] Absorption machines. - A generator-absorber of the kind having a central heating tube 2 and an annular space for solid absorbent is provided with heat-conducting longitudinal partitions 3, 10, 13 so spaced by flanges at their edges that the shortest distance, measured within adjacent 'pairs of partitions between the inner tube and the outer casing is greater than the radial distance therebetween. The spaces between some of the partitions may be packed with copper wool, while the remainder are packed with the absorbent, e.g., calcuim chloride, which expands during absorption. The partitions may be of V-shape or longitudinally corrugated. In a modification, the generator-absorber is provided with transverse partitions 26, 30, Fig. 5.
Patent GB-1167793-A (GB)
Title: Separation of Methacrylic Acid and Acrylic Acid
Inventor: NONNENMACHER HELMUT
IPC: C07C57/07
Filed: 1967-02-17
Abstract: 1,167,793. Acrylic, methacrylic acids. BADISCHE ANILIN- & SODA-FABRIK A.G. 17 Feb., 1967 [19 Feb., 1966], No. 7688/67. Heading C2C. Acrylic and/or methacrylic acid is/are separated from mixtures containing them by extraction with a 4- to 7-membered lactam with a hydrocarbon (6-20 C) radical as a substituent on the nitrogen atom. Propiolactams, pyrrolidones, piperidones and caprolactam with an alkyl, alkenyl, cycloalkyl, aryl or aralkyl radicals as substituents are used, e.g. N-isooctylpyrrolidone, N-dodecylpyrrolidone, and N- oleylpyrrolidone. The extraction may be bathwise or continuously in one or more stages, and may be liquid-liquid extraction or extraction from the gas phase.
Patent GB-446362-A (GB)
Title: Improvements in or relating to spectacle lenses
IPC: G02C7/02
Filed: 1935-03-12
Abstract: 446,362. Spectacle lenses. OSTWALT, F., 8, Rue J.-B.-Clement, Ivry-sur-Seine, France. March 12, 1935, No. 7697. Convention date, March 16, 1934. Drawings to Specification. [Class 97 (i)] In an anastigmatic spectacle lens having spherical, cylindrical, or toric surfaces which are not deformed aspherically, the astigmatism resulting from movements of the eyes behind the lenses is corrected by calculating the curvature of the lens surfaces on the basis of principal rays directed in the object space towards the image of the ocular centre of rotation formed by the combined system of spectacle lens and eye lens. A table is given showing the refractive powers, calculated on the above basis, of the front surfaces of lenses of various total refractive powers ranging from + 5D to -16D, there being two different front surface curvatures for each lens power.
Patent GB-116138-A (GB)
Title: Improvements in Machine Dogs.
Inventor: BARBER THOMAS WALTER
IPC: B23B31/16
Filed: 1917-05-30
Abstract: 116,138. Barber, T. W. May 30, 1917. Work-holders; chucks.-In detachable machine dogs comprising a fixed member N, a sliding member M, and a screwed spindle C operating in bearings in the two members, one or both bearings are provided with renewable bushes D, E, which may be shouldered and split, and screwed or pinned in position. In the form shown in Fig. 3, a holding-down bolt K provides one bearing for the spindle and may have a renewable bush. The bolt may be mounted in a slot in the base provided with an expanding collet.
Patent GB-928181-A (GB)
Title: Brake actuators
Inventor: PARR DEREK KEPPEL
IPC: F16D65/14
Filed: 1961-03-03
Abstract: 928,181. Internal shoe-drum brakes. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Feb. 13, 1962 [March 3, 1961], No. 7778/61. Class 103 (1). In a brake actuator having a linearlymovable cam element 4 engaged by a member 3 operatively connected to a brake shoe 1 such that movement of the element 4 actuates the brake, the element 4 is operatively connected to a wall 16 of a chamber 10 to which fluid may be applied so as to move that wall and thereby the element 4 through the medium of a member 5 which is guided in a second wall 9 of the chamber 10. The arrangement is such that both the end portion of the member 5 connected to the wall 16 and the portion of the member 5 guided in the second wall are laterally displaceable so that the member is self-aligning. As shown, the chamber 10 is in the form of a fluid-tight bag the lower wall 9 of which is formed with a central re-entrant portion that is secured by a clip 8 to a rigid guide sleeve through which the rod 5 passes. The end of the rod 5 is provided with a locknut 12 which is urged by a spring 6 against a collar 13 on a plate 14 between which and an annular plate 15 the wall 16 is clamped. The brake may alternatively be applied by means of a pin 24 secured to the brake rigging having a lost-motion connection with a slot 23 in a bracket 22 secured to the plate 15. The wall 16 may be constituted by a diaphragm, in which case, the member 5 may be guided in the second wall by a tubular element of flexible material encircling the member, one end of the tubular member being connected to the second wall and the other end being slidably connected to the member 5. Alternatively, the chamber may be constituted by a bellows.