baber/WOPTO huggingface dataset:
Patent GB-1166951-A (GB)
Title: Crank Drive Mechanisms, Particularly for Windscreen Wipers
Inventor: STEVENS DEREK NORMAN
IPC: B60S1/24
Filed: 1967-01-11
Abstract: 1,166,951. Pivots. GENERAL MOTORS Ltd. 14 Dec., 1967 [11 Jan., 1967], No. 1412/ 67. Heading E2F. [Also in Division F2] In a windscreen wiper drive mechanism, each end of a link 4 which interconnects a rotary crank 2 and an oscillatory crank 12 is pivotally connected to a crank-pin 3 of its associated crank by a bearing bush 5 formed as a rectangular prism two opposite faces 23, 24 of which are respectively of convex and concave curvature and form part of the surfaces of the larger and smaller of two concentric cylinders of different radii, the opposite faces being respectively engaged by opposite longitudinally spaced edges 25, 26 of a rectangular opening in the end. The bush 5 may be retained by a circlip 21, or, if the bush is made of flexible plastics material, flexible prongs may be moulded integrally therewith for engagement with a groove 22 formed in the crank-pin 3. The bush may be made of a polyamide resin, polyacetal resin, polypropylene or polyurethane or of metal such as sintered bronze, sintered stainless steel or of carbon. The longitudinal spaced edges 25, 26 of the recess may be folded over to form beaded edges adapted to receive the bush 5. Alternatively spring clips 40, 41, which may be linked by a connector strip, are used for mounting the bush 5. Similar bearings interconnect a link 8 with rotary crank 2 and an oscillatory crank 13.
Patent GB-606609-A (GB)
Title: Improvements relating to ring-spinning apparatus
IPC: D01H1/38
Filed: 1946-01-16
Abstract: 606,609. Ring spinning. BRITISH CELANESE, Ltd. Jan. 16, 1946, Nos. 1541 and 1542. Convention dates, Jan. 17, 1945 and March 17, 1945. [Class 120(ii)] A ring spinning machine has a ring which . is detachable, from its traversing means so as to be free to move beyond one end of the field of traverse, irrespective of the position of the traversing means, within limits defined by a stop, so that a length of yarn may be wound either above or below the main mass of yarn on a package by manually raising or lowering the ring. In one modification, Fig. 1, a ring 12 is carried on a plate 14 supported by a ring rail 15 common to several spindles. The plate 14 may be raised from the rail 15 by hand to a position, shown in dotted lines, above the normal traverse of the rail to permit an additional length of yarn to be wound on the bobbin above the main yarn mass. A sleeve 21 is fixed to the plate 14 and is slidable on a guide rod 22 fitted with a stop 23 to limit upward movement. In another modification, guide rods having a stop at their lower ends are attached to the plate 14 and slide in stationary tubes or bushings. A further modification, Fig. 4, has means for allowing the additional length of yarn to be wound at the bottom of a bobbin. A ring 35 is mounted on a plate 37 slidable on a shaft 42 which is fixed to a vertically reciprocating beam 45. The plate 37 is maintained in contact with the beam 45 by a tension spring 49. which is hooked over a stud 50 in a bushing 47 attached to the plate 37 by a member 48. Manual pressure on the plate 37 lowers the plate against an adjustable stop 63 to permit winding of yarn on the bobbin outside the field traversed by the beam 45. This last modification is particularly suitable for use on spinning machines in which the builder motion is operated as disclosed in Specification 568,139.
Patent GB-192591-A (GB)
Title: Apparatus for use in the estimation of suspended impurities in air and gases
IPC: G01N15/06
Filed: 1922-01-20
Abstract: 192,591. Owens, J. S. Jan. 20, 1922. Gas analysis.-An apparatus for use in estimating suspended impurities in air &c., comprises means for causing a known volume of air tn strike a glass &c. plate at such a high velocity that the suspended particles are caused to strike the plate and the moisture in the air is caused to condense on the particles prior to striking, and thereby cause the particles to adhere to the plate which is subsequently examined under a microscope. The gas is drawn through a tube T to an orifice A in the shape of a slot formed by the edges of two semicircular plates held in position by a ring R. The ring is recessed on its upper surface to form a seating for a microscope cover glass which is held in position by a plug C carrying a spring &c. The air is drawn through the apparatus by attaching a pump of known capacity to the connection E, the ring R being formed with air-channels N. The dust &c. deposited on the cover glass is examined under a microscope having an eyepiece with a suitable-graticule to facilitate counting the particles. The tube T may have a lining U of wet absorbent material so that the air may contain sufficient vapour to condense around the suspended particles.
Patent GB-768118-A (GB)
Title: Method and apparatus for the manufacture of corrugated metal sheets
IPC: B21D13/04
Filed: 1955-01-20
Abstract: 768,118. Corrugating. SOC. ANON. DES FORGES ET ACIERIES DE DILLING. Jan. 20, 1955 [March 16, 1954], No. 1729/55. Class 83 (4). A corrugated metal sheet is made by introducing a flat sheet 12 over its whole width between channelled cylinders 10, 11, which effect the formation of the corrugations in the sheet by drawing of the metal in a single operation. Following channelled cylinders 19, 20 may be provided to act as guiding means and to smooth the curves in the corrugations. The corrugated sheet has the same width as the flat sheet,
Patent GB-1360784-A (GB)
Title: Handling pallet for corrugated sheets
IPC: B65D85/46
Filed: 1973-01-12
Abstract: 1360784 Load handling pallets EVERITUBE 12 Jan 1973 [10 Feb 1972] 1753/73 Heading B8H A load handling pallet for sheets of corrugated material comprises a pair of support members 1, 2 supported at each end by a bearer 5 and held in parallel spaced relation by intermediate members 3, 4. The height of the bearers 5 is equal to or greater than that of the intermediate members 3, 4 and the spacing of the support members is equal to a multiple of the pitch of the corrugation of the sheet material.
Patent GB-779783-A (GB)
Title: Process for the manufacture of liquid reaction products from vinyl esters and aldehydes
IPC: C08G8/26
Filed: 1954-01-21
Abstract: A composition comprises 100 parts of polyvinyl chloride with 60 parts of a low polymer acetalized vinyl ester produced by heating under reflux vinyl acetate and butyraldehyde in the presence of a peroxide which is readily decomposable into volatile constituents, the mol. ratio of vinyl acetate to butyraldehyde in the polymer being 4 : 1 (see Group IV (b)).ALSO:Liquid addition products are produced by heating under reflux 1 part of a vinyl ester with 2-9 parts of an aldehyde in the presence of a peroxide which is easily decomposable into readily volatile constituents at the reaction temperature, e.g. diacetyl peroxide, hydrogen peroxide, vinyl acetate peroxide or di-(t-butyl) peroxide.  The reaction products may be split up by distillation in vacuo into a volatile component consisting of a 1 : 1 addition product of the aldehyde and vinyl ester, and a non-volatile component consisting of low polymer, acetalized vinyl esters. Suitable vinyl esters are the acetate, propionate, butyrate, benzoate and diethylacetic acid ester.  Any aldehyde may be used, saturated aliphatic aldehydes being preferred.  The peroxide catalysts are used in proportions of 5-10 per cent based on the weight of the vinyl ester.  By hydrolysis followed by dehydration or by splitting off a carboxylic acid from the volatile addition products they are converted to vinyl alkyl ketones and their polymers.  The non-volatile components may be used as plasticizers for synthetic resins, e.g. polyvinylchloride (see Group IV (a)).  In examples, (1) vinylacetate, butyraldehyde and a solution of diacetyl peroxide in ether or dibutyl phthalate are heated under reflux, and after removing excess butyraldehyde by distillation, the product is distilled under vacuum and the nonvolatile residue is purified by repeated reprecipitation and corresponds to a polymer of 4 mols. of vinyl acetate and 1 mol. of butyraldehyde; (2) in a similar process, the volatile component obtained by vacuum distillation corresponds to a 1 : 1 addition product of vinyl acetate and butyraldehyde; (3) diethylacetic acid vinyl ester and butyraldehyde are reacted together as in (1), freed from butyraldehyde by distillation and then distilled under vacuum giving a non-volatile component and a volatile 1 : 1 addition product which on hydrolysis yields diethylacetic acid.
Patent GB-450553-A (GB)
Title: Improvements relating to orthodontia appliances
IPC: A61C7/00
Filed: 1935-01-19
Abstract: 450,553. Regulating teeth. BAKER & CO., Inc., 54, Austin Street, Newark, New Jersey, U.S.A. Jan. 19, 1935, No. 1887. Convention date, Oct. 31, 1934. [Class 81 (ii)] In a device for moving or straightening the teeth, a block 1 of metal having curved sides to prevent irritation of the mouth is secured, preferably by soldering, to a tooth band 9 and is formed with a transverse slot 2 and an axial screwthreaded aperture 3, the axis of the aperture being substantially in the medial plane of the slot. A wire 4 of non-circular, preferably square, cross-section, to prevent relative rotation, is adapted to be secured in the slot by means of a plug 5 screwing into the aperture 3. The plug is formed with a central opening 6 to co-operate with a tool having a tapered end so as to engage the opening 6 frictionally; also the plug and tool may be of magnetic material and the plug or tool may be magnetized to facilitate handling of the plug. In use the wire is secured to blocks attached to anchor teeth, and bent to shape, blocks attached to the teeth to be operated upon being then secured in place. Preferably the blocks for use on the molars are formed with broader bases than those for the anterior teeth to distribute the pressure more evenly.
Patent GB-783106-A (GB)
Title: Improvements in or relating to electrical fuse holders
Inventor: BALL RICHARD THOMAS NATHAN
IPC: H01H85/62
Filed: 1955-01-21
Abstract: 783,106. Fusible cut-outs. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T. Jan. 4, 1956 [Jan. 21, 1955], No. 1903/55. Addition to 712,532. Class 38 (1). A modification of the split insertion piece for a fuse holder described and claimed in the parent Specification in which resilient clips 6 are provided in the gaps 3 in the walls of collar 2, ribs 9 on which retain the fuse end cap in the insertion piece. A part 5 of the clip element is screwed to a wall 4 of the collar. Two downward projections 14 extend from the wall 4 and join an insulating stem 15 which is formed with lugs 21 for engagement by a tool. The fuse is mounted in the insertion piece which is then screwed into a conducting ring 24, the other fuse end cap engaging a spring-pressed contact 25. The fuse is removed by unscrewing the insertion piece, the ribs 9 being prevented from snapping out of engagement with fuse 11 by a ring 24 even if the other end cap should stick slightly to contact 25.
Patent GB-344602-A (GB)
Title: Improvements in or relating to the manufacture of rubber compositions
IPC: A43B13/02
Filed: 1930-01-20
Abstract: Porous rubber compositions, are prepared by admixing granular, fibrous, or divided materials with aqueous dispersions of rubber and the like which have been or are thereafter converted into a frothy condition and the froth is caused to set to a permanent structure of irreversible solid material of sponge-like or cellular structure. The granular &c. materials comprise for example scrap rubber sponge, vulcanized rubber scrap, with or without fibre scrap, fibres such as cotton, paper pulp, leather trimmings, asbestos, abrasives and cork. The aqueous dispersions of rubber and the like comprise for example those described in Specifications 290,313 and 219,635, [both in Class 70, Indiarubber &c.].  The processes of forming frothy masses disclosed in Specifications 332,525 and 332,526, [both in Class 70, Indiarubber &c.], are particularly suitable.  Preferably the granular &c. materials are of larger average size than the average size of the cells of the froth.  In an example, 1000 grams of a rubber mix containing approximately 9 grams of sodium silicofluoride are whipped into a froth and 300 grams of vulcanized rubber sponge trimmings of approximately 0,5 inch diameter are added.  The mixture is poured into a mould and heated in an air oven at 100 DEG  C. for 3 hours to vulcanize.
Patent GB-490588-A (GB)
Title: Rotary machine
IPC: F04C2/344
Filed: 1938-01-20
Abstract: 490,588. Rotary engines. KNAPP, R. T. Jan. 20, 1938, No. 1915. Convention date, Jan. 30, 1937. [Class 110 (ii)] In a rotary engine of the axially-sliding vane type as described in Specification 452,829, the vanes 8 are pressed radially outwards by fluid and spring pressure to bear against an annular ring 14, and the cam-guides 11<1>, 12<1>. Intake and exhaust ports 15, 16 communicate with chambers 17, 18, and fluid is led into the working chambers 32, 33, by way of passages 22, 26. A cavity in each vane contains a packing block 42 supporting springs 44 which press the vane outwards. Spaces on each side of 42 are under pressures which are set up by fluid passing from separate working chambers. A hole 45 allows pressure fluid to pass through a vane to its outer edge. In a modification the shaft 2 has a sleeve containing radial holes in which spring-pressed pistons press upwards against each vane. A further arrangement describes vanes held in cylindrical sealing members which are under spring pressure.
Patent GB-1174944-A (GB)
Title: An Electric Cable, particularly for use in Telecommunication Systems, and a method of manufacturing same
IPC: H01B13/02
Filed: 1967-01-13
Abstract: 1,174,944. Stranding cables. TELEFONAKTIEBOLAGET L. M. ERICSSON. 13 Jan., 1967 [14 Jan., 1966], No. 1921/67. Heading H1A. A telecommunication cable comprises a group of at least three insulated conductors combined into sub-groups which are twisted together, each sub-group containing a single conductor or a plurality of conductors twisted together, and individual conductors are exchanged between sub-groups in a regular manner so that over a long length of cable the electrical characteristics of any one pair of conductors are the same as of any other pair. Alternatively, the subgroups may comprise individual subsets of conductors or a plurality of sub-sets. In the apparatus shown, individual conductors or subsets are wound on bobbins 1 and the constituents of each sub-group are twisted by rotating arms 17, 18 which guide the bobbins in circular slots 5, 6. The exchange of conductors between subgroups is effected by exchanging bobbins between slots 5 and 6 along transfer slots 7, 8. For this purpose an electromagnet 22 actuates a pin 21 which co-operates with a member 19 on the bobbin carrier to deflect it into the transfer slot along which it is driven by a belt conveyer. The twisted sub-groups are fed to a collector drum 32 carried in a rotating frame 33.
Patent GB-509777-A (GB)
Title: Improvements in or relating to the manufacture of ketene, acetic anhydride and homologues thereof
IPC: C07C51/56
Filed: 1938-01-20
Abstract: 509,777. Ketenes ; acid anhydrides. DREYFUS, H. Jan 20, 1938, No. 1924. [Class 2(iii)] Ketene acetic anhydride and their homologues are made by the thermal decomposition of aliphatic acid vapours in the presence of phosphoric acid and copper oxide or compounds yielding them under the reaction conditions. Ammonia or an organic nitrogen base may be present in addition. The presence of copper oxide suppresses the corrosive action on the apparatus. The phosphorus and copper compounds may be introduced in admixture with water or acetic acid into the bulk of the acid vapour. The vapour may be preheated to a temperature 20-100‹C. below or right up to the reaction temperature, which may be 600-900‹C., and reduced pressure may be employed, especially when ketene is desired. The reaction products may be cooled to condense water, acetic anhydride and acetic acid, or fractionally condensed to separate the anhydride from the water; liquids such as benzene, toluene, xylene, chlorbenzene and chloroform may be used to form azeotropic mixtures with the water. The process is described with reference to the treatment of acetic acid, but other acids such as propionic and butyric acids may be used. In an example acetic acid vapour preheated to 600- 650‹C. is heated to 670-720‹C. in a reaction tube near the entrance to which there is injected an aqueous solution of ammonia and phosphoric acid carrying copper oxide in suspension. The products are condensed fractionally. Specifications 280,972 and 317,907, [both in Class 2(iii)], are referred to.
Patent GB-1088883-A (GB)
Title: Fuel injection systems for internal combustion engines
Inventor: TBROOK MICHAEL HEREWARD WES
IPC: F02D41/36
Filed: 1964-01-17
Abstract: 1,088,883. Regulating I. C, engines. ASSOCIATED ENGINEERING Ltd. Jan. 15, 1965, No. 1976/65. Divided out of 1,088,502. Heading F1B. In a fuel injection system for an internal combustion engine in which pulses are supplied to the solenoids of electromagnetically actuated fuel valves, each solenoid is connected in series with a separate electronic gating device operated by triggering pulses. The gating devices may be silicon controlled rectifiers. In a first embodiment the gates are controlled by a mechanical, optical or electrical distributer which also triggers a pulse generator. In a modification a normally conductive transistor is connected in series with the solenoids and gates. The base of the transistor is connected to the collector of a second transistor which is normally non-conductive. A pulse generator is triggered from the distributer used for controlling the gates, as before, but in this arrangement the output of the pulse generator is differentiated and applied to the base of the second transistor. The trailing edge of a pulse renders the second transistor conductive and this in turn renders the first transistor non-conductive, to block current through the selected solenoid. The arrangement shown in Fig. 3 operates from the ignition distributer. A pulse supplied to a sparking plug S triggers gate G and at the same time a pulse is fed through a diode to transistor TR4 to trigger the pulse generator which is connected in series with the injector solenoids (not shown) and gates G. Each sparking plug actuates the injector for the cylinder displaced by 180‹ of the engine cycle.
Patent GB-1071621-A (GB)
Title: Rotary hydraulic actuators and hydraulically actuated valves
Inventor: BERTRAM BENJAMIN QUESENBURY
IPC: F15B15/12
Filed: 1963-01-16
Abstract: 1,071,621. Rotary fluid-actuated motors. SPERRY GYROSCOPE CO. Ltd. Jan. 15, 1964 [Jan. 16, 1963], No. 1978/63. Heading F1F. A rotary fluid-actuated motor, or so-called "actuator", of the oscillating-vane type comprises a stationary cylinder (1), Fig. 1 (not shown), situated between end walls 2, 3, a rotatable shaft 4 carrying a radial vane 5, a fixed abutment 6 provided with buffers or stops (10, 11) for the vane, and a valve of the spool type lodged in a cavity 17 within the shaft 4 for controlling the flow of working fluid e.g. oil, to and from working chambers (7, 8) on either side of the vane so as to effect rotation of the shaft in one direction or the other as required. The valve-member includes an axially-movable metal sleeve 33 containing an axially-slidable valve-spool 43. Three sets of annular grooves and transverse ports in the sleeve 33 are in register with passages 12, 13 communicating with the working chambers (7, 8), respectively, and a further passage 16 connected to an inlet passage 14 by an annular passage 15 in the end wall 3, the passage 14 being furnished with a sintered-metal filter. When the valve-spool 43 is in a neutral position (as shown), lands 44, 45 thereon are in register with the two transverse ports at the ends of the sleeve 33 to prevent fluid entering or leaving, the working chambers; and when the valve-spool is moved away from said position by an electric servomotor 47, fluid passes through the sleeve and one or the other of the passages 12, 13 to enter one of the working chambers and effect displacement of the rotor while fluid is ejected from the other working chamber through the associated passage 12 or 13, the sleeve, passages 22, 23, 24 and an outlet 25 in the end wall 2. Alternatively, the exhaust fluid reaches the outlet 25 through a fluid-filled chamber 26 containing the motor 47, according to the direction in which the valvespool is moved. The axially-outmost end 34 of the sleeve 33 is coupled to the shaft 4 by a pin 40 and has a screwthread engaging with a nut 35 that is coupled by a pin 36 to a manually-rotatable shaft 38, so that, when the motor 47 is stopped the shaft 4 continues to rotate and causes the sleeve 33 to move axially until the transverse ports at its ends are again in register with the lands 44, 45, thus preventing further angular displacement of the shaft. Rotation of the shaft 38 produces a corresponding change in the position of the sleeve 33 so that the valve can be manually operated. Back-lash in the screwthreads is taken up by a compression-spring 41 that presses the nut 35 against a stop 42.
Patent GB-973904-A (GB)
Title: Fluorinated polymers
IPC: C08G73/08
Filed: 1962-01-19
Abstract: Diethyl hexafluoroglutarate is prepared from hexafluoroglutaryl chloride by reaction with absolute ethanol.  Hexafluoroglutarodiamide is prepared from diethyl hexafluoroglutarate by reaction with ammonia in dry ether.  Hexafluoroglutarodinitrile is prepared from hexafluoroglutarodiamide by dehydration using phosphorus pentoxide in nitrobenzene in the presence of barium oxide.  The dihydrazone of perfluoro-1, 3-propanedicarboxamide is prepared from hexafluoroglutarodinitrile by reaction with hydrazine hydrate under an atmosphere of nitrogen.ALSO:Fluorinated polymers contain a plurality of units <FORM:0973904/C3/1> a plurality of units <FORM:0973904/C3/2> or a plurality of units (a) wherein some of the <FORM:0973904/C3/3> groups have been replaced by <FORM:0973904/C3/4> groups, wherein Rf is a bivalent perfluoroalkylene radical having at least 3 carbon atoms and Ar is an unsubstituted bivalent aromatic hydrocarbon radical of 6 to 18 carbon atoms, or such a radical substituted by one or more alkyl or alkoxyl radicals or halogen atoms and having its residual valences on different carbon atoms, the units being joined in head to tail fashion. The polymers of the formula (a) may be prepared by reacting the dihydrazone of the corresponding perfluoroalkylene dicarboxamide with the corresponding aromatic dialdehyde.  Groups of the formula <FORM:0973904/C3/5> may then be introduced by oxidative ring closure which may be affected by heating the polymer of formula (a) with iodine. Dihydrazones specified are those of perfluoro-1, 3-propane dicarboxamide; perfluoro-1, 4-butane dicarboxamide; perfluoro-1, 6-hexane; perfluoro-1, 8-octane dicarboxamide and perfluoro-1, 14-tetradecane dicarboxamide. Dialdehydes specified are terephthalaldehyde; 2, 5-dichloroterephthalaldehyde; 2, 3, 5, 6-tetrachloroterephthalaldehyde; 2, 3, 5-trichloroterephthalaldehyde; 2, 5-dibromoterephthalaldehyde; 2, 5-dimethylterephthalaldehyde; 2, 3, 5, 6-tetramethylterephthalaldehyde; 2, 5-dimethoxyterephthalaldehyde; 2, 5-diethoxyterephthalaldehyde isophthalaldehyde; 4-chloroisophthalaldehyde; 2, 4-dichloroisophthalaldehyde; 2, 4, 6-trichloroisophthalaldehyde; tetrachloroisophthalaldehyde; 4-methoxyisophthalaldehyde; 5-methylisophthalaldehyde; 4, 5-dimethylisophthalaldehyde; 4, 6-dimethoxyisophthalaldehyde; tetramethoxyisophthalaldehyde; 4, 41-diphenyldialdehyde and 4, 41-diphenyl ether dialdehyde.  Infusible polymers of the invention may be added to fusible polymers of the invention, or to the fusible N1-perfluoroalkanoyl-N2-aryl-methylenehydrazines of U.S.A. Specification 3,055,938, or to the 2-perfluoroalkyl-5-aryl-1, 3, 4-triazoles of U.S.A. Specification 3,115,498 to increase their viscosity at high temperatures.  The fusible polymers of the invention may be used as heat transfer media.