baber/WOPTO huggingface dataset:
Patent GB-453818-A (GB)
Title: Improvements in or relating to draw-benches for the multiple drawing of metal tubes or pipes in one heating
IPC: B21C1/32
Filed: 1936-02-20
Abstract: 453,818. Drawing tubes. MASCHINENFABRIK MEER AKT.-GES., 29, Karmannstrasse, Gladbach, Munich, Germany. Feb. 20, 1936, No. 5196. Convention date, Jan. 18. [Class 83 (iv)] A draw-bench wherein tubes are subjected to a series of drawing steps without re-heating has a conveyer on to which a drawn tube is released, and which returns the tube to the entrance side of the die block. A tube 12 with a reduced end 5 is fed into the die 6 by a belt 2 which is raised to operative position by a piston 4. The end 5 is seized by jaws 13, operated by a sprocket chain 17 or by a cable, toothed gearing, or hydraulic means, and after the drawing operation the tube falls on to a conveyer 24, by which it is returned on to the conveyer band 2 and thereby fed through another die in the block. The dies are preferably mounted in a rotary head 8 which may be pedal operated to present successive dies to the work. The conveyer 24, which also serves to deliver the completely drawn tube to cooling or other devices, is raised or lowered by pistons 26, 27. Alternatively, the head 8 may be movable. Openings may be provided between the dies in the holder 8 for passage of the tube to the entrance side of the holder, when a single conveyer belt may replace the belts 2, 24. Other conveying means such as rollers may be substituted therefor. The upper guide 21 for the carriage 16 is pivotally mounted to facilitate mounting of the carriage. A number of drawbenches may be connected in series, or two drawbenches may be mounted in opposed relation. Tongs.-The gripping-jaws 13 are mounted in an arm 15 extending laterally from the carriage 16 so that they overlie the conveyer 24.
Patent GB-578015-A (GB)
Title: Improvements in or relating to high speed cameras
IPC: G03B39/02
Filed: 1943-04-01
Abstract: 578,015. High - speed kinematograph cameras. SCOPHONY, Ltd., and LEE, H. W. April 1, 1943, No. 5223. [Class 97 (i)] In a high-speed camera of the kind in which a series of images is projected by a stationary lens system and a rotary image-immobilising, element on to a film moving uniformly in an arcuate or circular path, the image-immobilising element comprises a regular polygonal mirror' prism with its faces tangential to a circular cylinder, which is mounted coaxially with the film path .and rotated at the same angular speed as that of the film, and the imaging lens system is so disposed that when a mirror face, is perpendicular to a plane containing the axis of the lens system and the axis of.rotation of the prism, the image of a point lying in this plane will also lie in the plane. As, shown diagrammatically in Fig. 2, the incident beam 30 falls with a small degree of obliquity on the mirror' prism 17, so that the beam 31 reflected on to the film 32 may clear it, both beams lying in the same radial plane. Preferably, as shown in Figs. 1 and 2, the whole, or at least a part, of the imaging lens system 21 is traversed both by the incident and reflected rays, so forming a symmetrical system compensating certain optical errors, and allowing the mirror faces of the prism to serve as stops at the centre of symmetry so that even illumination of the images is secured. Alternatively, part of the lens may be in the incident beam and part in the reflected beam. As shown in Fig. 1, the camera comprises a drum 9 having a rim 10 against the inner face of which the film is held by centrifugal force. To withstand high speeds of the order of 200 revolutions per second, the drum is formed of high tensile aluminium alloy and has a hyperboloidal hub which is secured to the shaft 5 of a two-pole polyphase induction motor 4. The motor may be driven at speeds of 200, 100 or 50 revolutions per second by current supplied from a frequency changer. The mirror prism 17 is also secured to the shaft 5 coaxially with the drum, and the main imaging lens 21 is supported adjacent to it by a holder secured to the cover 3 of the casing. An additional lens 24 may be swung into the path of the incident beam to focus near objects. A housing 20 contains a shutter which opens for a single revolution of the film and the operation of which is synchronized with the event to be photographed. A mask 23 cuts off light from non-operative mirror faces and may limit the exposure area to about half the image area to secure sharper images.
Patent GB-163775-A (GB)
Title: Improved device for carrying a spare wheel on motor road vehicles
IPC: B62D43/02
Filed: 1920-02-20
Abstract: 163,775. Mitchell, J. Feb. 20, 1920. Mounting and securing reserve tyres and wheels on vehicles.-For carrying a spare wheel on motor road vehicles, a frame or plate immovably secured to the back of the vehicle body carries a support adapted to coact with the wheel hub, means being provided for securing and locking the wheel to the support. As shown in Fig. 5, a plate 3, supported by arms or straps 1, 2 from the top rail 4 and bottom member 5 at the back of the body, carries a central stud 6 and bush 7 for engaging with the hub 8 of the spare wheel W, and an additional spare tyre T is also carried, the wheel and tyre being retained and locked in position by a washer 9, wing-nut 10, and a padlock (not shown) passed through a hole in the end of the stud. The washer 9 is carried by an arm 11 which is slidably engaged with a socket 13 on the arm 1, and two other arms 14 carried by the washer are cranked at their lower ends in order to support the tyre T. A distance-piece 15 is arranged between the hub 8 and the washer 9, but when it is desired to carry a wheel only, this distance-piece is arranged between the washer and the wing-nut 10, the washer being arranged to bear directly against the end of the bush 7. If it is not desired to provide for carrying an additional spare tyre, the stud 6 may be shorter and the parts 13, 14, 15 dispensed with. The washer 9 mav be separate from the arm 11. The arm 1 may also be dispensed with, the top of the wheel being held against the back of the vehicle by a strap or clip capable of being locked. According to a further modification, the plate 3 may be secured directly to a member forming part of the back of the vehicle body, such as an additional member disposed vertically between the top and bottom rails, and unauthorized removal of the tyre or wheel may be prevented by a locking-device secured to the top rail. One of the Provisional Specifications refers also to an arrangement wherein the central supporting- member is carried by two arms secured at each end to the vehicle body.
Patent GB-646918-A (GB)
Title: Improvements in and relating to the production of plastic masses, foils, films, coating compositions and the like
IPC: C08K5/1565
Filed: 1947-02-24
Abstract: Plastic masses comprise a cellulose ester or ether, or a polyvinyl compound and as solvent or plasticizer a cyclic acetal containing the grouping: <FORM:0646918/IV (a)/1> The thermoplastic substance may be a cellulose acetate, particularly a cellulose triacetate, or a polyvinyl chloride, polyvinyl acetal, polystyrene, or a co-polymer of vinyl chloride and vinyl acetate.  The cyclic acetals may be obtained by condensing chloral with a polyhydric alcohol, having hydroxyl groups on adjacent carbon atoms, in the presence of a strong condensing agent such as sulphuric acid.  Cyclic acetals so prepared and still containing a reactive group may be converted into derivatives, e.g. alcoholic groups may be esterified.  Cyclic acetals suitable for plasticizing cellulose derivatives or polyvinyl compounds are trichloro methyl dioxolan (from chloral and ethylene glycol); trichlorethylidene glycerol and the acetate, benzoate, formal, trichloracetal, adipate, and sebacate thereof; 4 - methyl - 2 - trichloro - methyl dioxolan-1 : 3; and 4-chloromethyl-2-trichloromethyl dioxolan 1 : 3.  In an example, 50 parts of cellulose acetate of combined acetic acid content of 52-56 per cent are mixed on hot rolls with 30 parts of trichloromethyl dioxolan and the homogeneous mass is moulded at 140 DEG  C.  In another example, 100 parts of polyvinyl chloride, 60 parts of trichloromethyl dioxolan, and 10 parts of lead silicate are mixed on hot rolls and the mass is moulded at 140 DEG  C.  In another example, cellulose triacetate, cyclopentanone, and trichloroethylidene glycerol are mixed together and tetrahydrofuran is added gradually. A lacquer is obtained. Coating compositions, foils, films, and moulded articles may be made.  The chlorine-containing cyclic acetals render the compositions resistant to fire.  Specification 511,861 is referred to.  The Provisional Specification refers also to the use of the corresponding bromine compounds obtained by condensing polyhydric alcohols with bromal.ALSO:Cyclic acetals containing the grouping <FORM:0646918/IV (b)/1> are obtained by condensing chloral with a polyhydric alcohol, having hydroxyl groups on adjacent carbon atoms, in presence of a strong condensing agent such as sulphuric acid. Cyclic acetals so prepared and still containing a reactive group, may be converted into derivatives, e.g. alcoholic groups may be esterified or converted into acetals.  Cyclic acetals specified are: trichloromethyl-dioxolan, trichloro-ethylidene glycerol, 4 - methyl - 2 - trichloromethyldioxolan - 1 : 3, 4 - chloromethyl - 2 - trichloromethyldioxolan-1 : 3, trichlorethylidene-glyceryl acetate, trichlorethylidene - glyceryl benzoate, bis-(trichlorethylidene-glyceryl)-formal, bis-(trichlorethylidene - glyceryl) - trichloroacetal, bis-(trichlorethylidene - glyceryl) - adipate and sebacate.  Specification 511,861 is referred to. The Provisional Specification includes also the production of cyclic acetals by condensing bromal with polyhydric alcohols.
Patent GB-1214288-A (GB)
Title: Guiding sleeve for automatic lathes with a sliding headstock
Inventor: HABEGGER HAROLD
IPC: F16C29/10
Filed: 1969-01-30
Abstract: 1,214,288. Work-holders. H. HABEGGER. 30 Jan., 1969 [9 Feb., 1968], No. 5271/69. Heading B3B.  A guiding sleeve for atuomatic lathes with a sliding headstock comprises rollers 7 wherein radial clearance with bar stock 4 is controlled by axial movement of a chuck 8 in housing 1 wherein a conical surface 18 of housing 1 cooperates with a conical surface 17 of the chuck 8 to operate its jaws (16), Fig. 2 (not shown), these conical surfaces could have a relatively small opening angle, axial clearance is controlled by a control member 9 which abuts a projection 12 of a nut 11, variation in clearance being achieved by a spacing ring 24 clamped between the nut 11 and body 1. Closing and opening of jaws (16) is brought about by relative rotary moveme t between member 9 and the chuck 8 so that screw threads 19 and 22 produce axial movement of the chuck. Body 1 and the chuck are held together for rotary motion by a stud 6 engaging a slot 15. The jaws of the chuck are defined by angled slots 14 engaging with slots 15, see Fig. 2 (not shown). Projection 12 has three radial slots 25 and the parts of the projections are slightly bent inwards to grip member 9 to avoid undesired rotation of the member. The rollers are preferably made of sintered metallic carbide and remain in position when no bar stock is in the sleeve due to very small clearances between adjacent rollers. The operation of member 9 could be automatic.
Patent GB-471060-A (GB)
Title: Improvements in or relating to apparatus for launching torpedoes
IPC: F41F3/08
Filed: 1936-02-21
Abstract: 471,060. Launching torpedoes. THORNYCROFT & CO., Ltd., J. I., and THORNYCROFT, SIR J. E. Feb. 21, 1936, No. 5274. [Class 9 (ii)] Relates to torpedo launching davits mounted on a horizontal pivot and associated with a rope which is attached to'the ship and adapted, when the davit is swung out, to become taut and cause the release of the torpedo from the davit. According to the invention, the rope 14, Fig. 2, is connected to a lever 13 on a pivot 11 on the tail 9b of one member of a pair of tongs 9 held locked by a link 10a pivoted on the tail 9a of the other member of the tongs, and the rocking of the lever 13 by the rope 14, when this becomes taut, is adapted to dislodge the link 10a, for example, by means of a lever arm 12 attached to the spindle 11 of the lever 13. The davit comprises two arms 1, la, Fig. 1, mounted on a common spindle 2 ; and two similar pairs of tongs 8, 9 are used to support the torpedo 5. The davit can be swung out by a ram 25 extending between a shaft 26 on the davit and a bearing on the ship ; and a plate 27 is provided for the torpedo to bear against. The ram can be operated by gases from an explosive cartridge. In a modification, Fig. 5, the lever 21 to which the rope 23 is attached is adapted to release a bell-crank lever 20, 19 connected by links 18 to levers 17, which in turn release a band 16 to drop the torpedo, two sets of such devices being provided corresponding to the two pairs of tongs in Fig. 1. Specification 129,376, [Class 9 (i)], is referred to.
Patent GB-870905-A (GB)
Title: Improvements in sensing devices for label-applying machines
IPC: B65C9/42
Filed: 1960-02-16
Abstract: 870,905. Labelling machines. ORTENBLAD, T. Feb. 16, 1960, No. 5420/60. Class 73. Relates to labelling machines in which labels are fed to the labelling station by a conveyer band on which they are lightly adhered and spaced apart in a row and to means for sensing the labels and causing actuation and regulation of such devices as label counting and printing apparatus. Labels 4a, 4b, 4c are fed on the conveyer band 5 below a feeler body 1 provided with arms 1a 2 . 1b, 1c and mounted for rotation about a pivot 2 carried at the end of a swinging arm 7 pivoted at 6 to a stationary upright 10. In operation two arms 1 a, 1 b, rest and slide on the underlying label 4a Fig. 2 either under their own weight or spring pressure. When the downwardly inclined rear arm 1a reaches the space 3a between labels 4a, 46, the end edge of the arm 1a enters the space and abuts the forward edge of label 4b. The arm 1a is then carried forward by the label 4b and swings forward about the pivot 2 to pass the vertical position and take up the position previously ,occupied by the arm 1b. At the same time, the arm 7 is raised, causing an abutment 8 to close an electric contact 9 for a short period until the arm 7 falls, the operation then being repeated with subsequent labels. The contact 9 completes an electric circuit 11 for operation of other parts of the machine. The feeler body 1 may coact with a guide during its elevation movement instead of being carried by the pivoted arm 7 and instead of closing an electric contact, the movement of the feeler body 1 may. be transmitted by mechanical means to the other parts of the machine..
Patent GB-766764-A (GB)
Title: Removal of heavy metal ions from non-aqucous sulphur trioxide solutions
IPC: C01B17/90
Filed: 1955-02-23
Abstract: Sulphur trioxide/sulphur dioxide mixtures which are used for sulphonating benzenesoluble thermoplastic alkenyl aromatic resins, such as polystyrene, polyvinyltoluene or copolymer of styrene and vinyl toluene, are pretreated with alkali metal form cation-exchange resins to remove heavy metal impurities which cause cross-linking of the polymers.  Specification 746,616 is referred to.ALSO:Non aqueous sulphur trioxide solutions in sulphur dioxide are treated with the alkali metal form of a cation exchange resin to remove heavy metal impurities, such as iron, copper and lead.  The exchange resin is preferably one containing sulphonic acid groups as the functional groups, such as a sulphonated copolymer of styrene, ethylvinylbenzene, and divinylbenzene.  Such solutions may be used for sulphonating poly (alkenyl-aromatic) compounds, e.g. by a method as in Specification 746,616 [Group IV(a)].
Patent GB-235268-A (GB)
Title: Improvements in or relating to elevators or dredgers for sewage, detritus and the like
IPC: E03F7/10
Filed: 1924-03-04
Abstract: 235,268. Birtwistle, R., and Overstall, F. P. March 4, 1924. Endless-chain machines.-An elevator or dredger of the kind which is adjustable as to the depth at which it will work, comprises a vertical dredger leg or ladder, means for transporting the ladder about the detritus chamber, an endless chain or buckets carried by the ladder, means whereby the point of discharge of the buckets is kept constant for all positions of the ladder at as low a point as possible, means for driving the chain of buckets, means for ensuring the complete inversion of each bucket when discharging, means independent of the chain for adjusting the vertical position of the ladder, and means for removing the dredged matter. The carriage 1 runs on rails 2 over the length of the chamber 3 and carries a framework 4, on which is a shoot 5 and an adjustable leg 7 carrying sprocket wheels 8 round which a chain of buckets 12 is arranged. An operating rope attached to the leg 7 is wound on a barrel 9 actuated by a handwheel 10 through gearing 11. Full buckets rising out of the chamber 3 are passed over sprockets 13 in a downward direction to discharge into the shoot and are passed thence over sprockets 14, 15 between which or elsewhere chain-tensioning sprockets 16 may be arranged. The buckets pass thence to the chamber 3 by way of the upper sprocket 8, which may have chain-tensioning means instead of those 16. The chain of buckets is driven from an electric motor 22 through gearing 23, 24, shaft 21 which is coupled to pulley 20, gearing 18, 19, and sprockets 13, and the carriage is propelled by a shaft 25 having a handle 25<a> and gearing 26 - - 29; or instead of the handle 25a power may be used with automatic means for reversing at the end of each travel. In Fig. 3 the carriage 1 runs on a gantry 31 so as to evacuate a number of parallel flow chambers 30, the gantry having a conveyer 32 for the shoot 5 and running on rails 34 under suitable driving power.
Patent GB-273244-A (GB)
Title: Process for the manufacture of hydroaromatic dicarboxylic acids
IPC: B65G39/14
Filed: 1927-02-28
Abstract: 273,244. Riedel Akt.-Ges., J. D. June 22, 1926, [Convention date]. Addition to 265,959. Hydroaromatic dicarboxylic acids are obtained by the oxidation of either wholly or partly hydrogenated cyclic alcohols and ketones, such as alpha-and #-tetrahydronaphthols, hydrindone, alpha-and #- decahydronaphthols, in the presence of oxygen carriers, for example, mercuric oxide, molybdenum pentoxide, vanadium pentoxide and the corresponding metallic salts. In an example a mixture of cis- and trans-hexahydro-o-phenylenediacetic acid and octohydrocinnamic-o-carboxylic acid are obtained by adding #- decahydronaphthol to 60% nitric acid which has been treated with vanadinate of ammonium and heating. The Specification as open to inspection under Sect. 91 (3) (a) states also that the derivatives of the acids may be obtained similarly. This subject-matter does not appear in the Specification as accepted.
Patent GB-736621-A (GB)
Title: Improvements in synchronising devices for the toothed clutches of change-speed gears
IPC: F16D23/02
Filed: 1953-02-27
Abstract: 736,621. Synchronized claw clutches. PORSCHE, F. Feb. 27,1953 [March 25, 1952], No. 5561/53. Class 80 (2). A split-ring synchronizer 18 for clutch-teeth 13, 15 is initially stressed on assembly by having its reduced end sprung into a recess 21 in the adjacent face of the toothed clutch element 13, and in addition the radial thickness of the ring increases uniformly from the ring-gap to the diametrically opposite point x-x of maximum bending-moment to ensure uniform radial pressure when compressed. The radial thickness a at the intermediate points y-y is less than the axial width of the ring. These factors reduce the necessary radial compression to be applied during synchronizing, thus permitting reduced axial travel and length of the synchronizer and hence of a change-speed gear using it. The spring rings 18 are freely mounted on the clutch-elements 13 and drivingly connected to them by radial pins 19 on each element engaging the ring-gap. The clutch elements 13 are fast on toothed wheels 4, 5 freely mounted and axially located on a shaft 6 on which is fast a carrier 7 having two to six radial lugs 25 drivingly engaging guide-slots in a slidable sleeve 8 having internal clutch teeth 15, which are interrupted at the guide-slots. Friction synchronizing is effected by radial contraction of the spring ring 18 caused by the interengagement of coned surfaces 23, 24 on the ring and in the clutch teeth 15, during initial axial movement of the clutch sleeve 8. The coned surfaces are followed by cylindrical surfaces 28, the junction of the surfaces on either the sleeve or ring or both being radiused. The clutch sleeve 8 is axially located in either fully engaged position by the engagement of one or other spring-ring 18 in a central depression 30 in the clutch sleeve. Concentricity of the outer surface of the rings is maintained by making the mounting surface of the clutch elements 12 eccentric. The cone angle of the synchronizing rings 18 is 6-25 degrees. Reference has been directed by the Comptroller to Specifications 653,328 and 666,422.
Patent GB-294627-A (GB)
Title: Improvements in or relating to the gearing arrangements of mangling and wringing machines
IPC: D06F45/18
Filed: 1928-02-22
Abstract: 294,627. Ateliers St. Eloi, and Louchet, E. July 29, 1927, [Convention date]. Driving-gear for mangles and wringers.- Means are provided whereby the upper roller may be driven at one of a number of slightly different speeds, and for this purpose one of the pinions P<5> of a train of gears P<3> - - P<8> driving the upper roller shaft is made removable so that it may be replaced by another having a slightly greater or less number of teeth. A set of seven such pinions may be provided for use with the machine, each successive pinion in the series having two teeth more than the one immediately preceding it, and the one that should be used for any given separation of the rollers is indicated by a pointer a working over a scale S and linked to a bearing of the upper roller. The first pinion P<3> of the train is a small toothed pinion and is fast on the shaft A<2>. It meshes with another small toothed pinion P<4> carried on a quadrant F which may be secured in any adjusted position about the shaft A<2> to keep in gear with the small toothed variable pinion P<5> removably carried on a shaft A<3> to which long toothed pinions P<6>, P<1>6 are secured. These pinions mesh with other long toothed pinions P<7>, P<1>7 loose on the shaft A<2> and gearing with pinions P<8> on the upper roller shaft A<1>. The shafts A<2>, A<4> are normally in the same horizontal plane, but the shaft A<4> can rise in the side frames without disconnecting the drive.
Patent GB-1123178-A (GB)
Title: Impact tool
Inventor: ROLL JACK ARTHUR
IPC: B25D11/10
Filed: 1967-02-06
Abstract: 1,123,178. Percussive tools. HUGHES TOOL CO. 6 Feb., 1967, No. 5644/67. Heading B4C. A percussive tool 10 comprises a driving shaft 20 mounted in a housing 12 and having at least one cam follower 22 adapted to cooperate with a cam surface 34 formed on a hammer 24 in order to raise the latter against the action of a spring 30, the spring having its ends connected by threads 40, 42 with the hammer and housing respectively. The shaft 20, which may be rotated by means of an hydraulic motor 18, is provided with a bore (46, Fig. 3) in which is mounted an axle 44 carrying a pair of cam followers 22 adapted to ride on the cam surfaces 34. The tendency for the hammer to rotate during operation is resisted by means of the spring 30 being anchored at its ends by the screw-threads 40, 42. The moving parts of the tool are lubricated and cooled by feeding hydraulic fluid into the interior 82 of the housing via an inlet 76 and an outlet 78.