baber/WOPTO huggingface dataset:
Patent GB-909128-A (GB)
Title: Improvements in or relating to shearing and welding machines
IPC: B21B15/00
Filed: 1959-06-03
Abstract: 909,128. Making metal sheets; welding; shearing. BRITISH FEDERAL WELDER & MACHINE CO. Ltd., and TRIBE, T. F. May 30, 1960 [June 3, 1959], No. 18915/59. Classes 83 (2) and 83 (4). In a machine for joining strip-stock 12, strip is fed to a shearing station where its leading edge and the trailing edge of a preceding strip are sheared simultaneously, the trailing edge is then retained by a clamp 16 while the succeeding strip is fed forward to engage or overlap the trailing edge and a welding device 15 joins the strips automatically. The end of the succeeding strip is clamped to a carriage 27, Fig. 4, by a pivoted clamp 23 operated by cylinders 26, clamp 16 securing the end of the preceding strip also being operated by a cylinder 24. The limbs of a resilient holddown 34 on the upper cutter-head 41 press the strip-ends against the lower shear-blades 28, 29 as the head 41 is lowered by cylinders 36, 38, Fig. 5, operating through levers 37, 39, including a lost-motion connection 40 facilitating the return stroke effected initially by cylinder 36 alone. The severed ends fall down a shoot 19, the cover 21 of which is lowered by levers 22 connected at 45 to the cutter-head mechanism. Adjustment of the lower shear-blades 28, 29 is by screws 31, 33. After return of the head 41, the carriage 27 and clamp 23 are advanced by cylinders 46 in the table 18, which has bars 48 engaged in slots in the carriage. Thus the succeeding strip is advanced over the preceding strip held by clamp 16, until its end strikes the clamp. A clamp 14 operated by a cylinder 58 then clamps the strips to a copper electrode 17, while the strips are joined by roller-electrodes 15 lowered about a pivot 51, Fig. 3, on a carriage 50 which is traversed across the strips by a screw 54 driven by a belt 56 from an electro-motor 55. A brake 57 is provided, and cylinders 52 for lowering the rollers 15 beneath the carriage 50, which runs on rollers 82. A switch 64, closed by contact between a lever 63 and the strip when the roller-electrodes 15 run on to the strip, maintains the welding circuit while the rollers remain on the strip. At the end of a welding run the rollers 15 are raised and the carriage 50 returned by operation of a switch 60 by an abutment 61 on the carriage. A switch 62 operated by an abutment 65 stops the motor, switch 66 being in the welding circuit. The cylinders 24, 26, 36, 46, 52 and 58 operate the switches of a control system so that the various operations are performed automatically. Instead of a double-seam weld, a single seam may be effected, or the joint may be by flash, flash-and-mash, or spot-welding.
Patent GB-748150-A (GB)
Title: Improvements relating to electric plug and socket cable couplings
Inventor: STENT BERTRAM HENRY GEORGE
IPC: H01R13/502
Filed: 1953-07-08
Abstract: 748,150. Two-part couplings. SIMMONDS & STOKES (NIPHAN), Ltd. June 21, 1954 [July 8, 1953], No. 18968/53. Class 38 (1). The insulating contact-carrying blocks 2, 2A of a waterproof plug and socket coupling are each held in their respective casings 1, 1A by a dowel pin 4 screwed into the block engaging a groove 5 in the casing, the block and casing being assembled by inserting the former so that the pin 4 passes through a slot 6 in the lip 12 and then rotating the block. A tongue 9 on a spring 7 engages slot 6 to prevent further rotation of block 2, the spring 7 having a washer-like part encircling the earthing pin 8 and serving to press it against the metal casing 1. A joint washer 11 and spring washer 19 are provided in the plug part. The spring which prevents rotation of the block 2 may alternatively be secured to one of the pins by a screw (Fig. 5, not shown).
Patent GB-147068-A (GB)
Title: Improvements in or relating to bevel wheel shapers
IPC: B23F5/12
Filed: 1920-07-06
Abstract: 147,068. Barth, C. Sept. 27, 1918, [Convention date]. Gear-cutting.-In a bevel-gear shaping-machine of the kind in which the tooth curve is generated by rolling the blank against shaping cutters forming a tooth of a crown wheel, the revolving table 18 carrying the cutter slides 19, and the work-holder are both driven through independent change speed and other gears 13-16 and 32-24, from a shaft 5, preferably in line with the main driving-shaft, and driven from it direct by a clutch or through slow speed gear 10, 10<a>, &c. The work-holder 21 is mounted on a. carriage 33 pivoted about the vertical axis of the bevel wheel 29. A crank 20 may operate the slides 19 through racks as shown.
Patent GB-581398-A (GB)
Title: Improvements in electric insulators
IPC: H01B17/34
Filed: 1945-07-25
Abstract: 581,398. Insulators. COMPAGNIE GENERALE D'ELECTRO-CERAMIQUE. July 25, 1945, No. 19070. Convention date, July 29, 1939. [Class 36] In a cap-and-pin suspension insulator with inverted bell for containing oil and the bell sealed to both pin and cap, the free length of the connecting pin 2 is equal to the depth of the bell 3. The protective cap 4 has a downwardly-projecting threaded socket 5 engaging the insulator cap 1 which has a depth substantially the same as that of the cap 4.
Patent GB-223655-A (GB)
Title: Improvements in or relating to work holders or fixtures for use in cutting cams
IPC: B23Q27/00
Filed: 1923-07-25
Abstract: 223,655. Bishop, R. July 25, 1923. Milling helical surfaces.-In a work-holder for cutting helical cams the blank is moved in relation to a milling or grinding tool, the motion consisting of a rotation about the blank axis which is simultaneously moved parallel to itself in such manner that every point on it describes an arc of a circle, the motion of the axis being similar to that of the movable member of a pair of parallel rulers. The blank is mounted between a chuck on the shaft 7 and a tailstock 5 adjusted by a milled head 5b, the tailstook and shaft bearings being carried by a slide 4 movable longitudinally and transversely between guides 3. The slide is connected to a base 1 by two pairs of integral or attached discs 11, 12, the discs 11 being pivoted on the base and the discs 12 on the slide. Rotary motion is transmitted to the shaft 7 by a wormwheel 19 driven in either direction by gearing, and the shaft carries a screwed sleeve 24 engaging a nut 25, the worm-wheel and nut being free to move laterally on guides a, b respectively. In a modification, the work is rotated about a stationary axis and the cutter, which has a cutting face corresponding in shape to a section of the roller which co-operates with the cam, is mounted on a slide having a motion similar to that of the slide 4, the cutter axis moving parallel to itself.
Patent GB-191090-A (GB)
Abstract: 191,090. Taylor, H. S., and Taylor, W. P. July 2, 1921. Rope grips.-In haulage systems where the load is suspended from a carrier running on a fixed track or rope b and is hauled by means of a travelling rope a arranged above the track, the rope grip i is carried by an arm g pivoted at h to the carrier e in a line parallel to the track, so that the arm and grip can swing over from one side to the other as the relative positions of track and haulage rope vary. The pivoted arm may be telescopic to lessen sideways pulling of the haulage rope, and more than one arm may be provided each carrying a rope grip.
Patent GB-801213-A (GB)
Title: Improvements relating to optical instruments containing meniscus-shaped optical elements
IPC: G02B7/02
Filed: 1956-06-20
Abstract: 801,213. Optical apparatus. OPTISCHE INDUSTRIE DE OUDE DELFT N. V. June 20, 1956 [June 20, 1955], No. 19154/56. Classes 97(1) and 98(1) A meniscus shaped optical element such as a mirror or a lens is supported in the housing of an instrument by means having a plurality of recesses symmetrically disposed around the element facing one surface thereof, a segment shaped as a section of a sphere of a plane, or near plane, being disposed in each recess and held with its base against the surface, the segments being free to rotate about their centres under eccentric forces external of the element. As applied to a photographic camera comprising a concave image-forming mirror and a correcting meniscus lens 20 the mirror 1 is mounted in the housing 5 on three supports arranged round its circumference at intervals of 120 degrees each support, e.g. support 3, having secured to it a bolt 8 passing through a hole 10 in the mirror 1 the axis of which hole passes through the centre of curvature of the reflecting surface 2 of the mirror. A segment 11 having a base surface of the same curvature as the surface 2 is provided between the mirror and the support 3 and the bolt is held in place by nuts 18, 19 with the interposition, if desired, of a spring 16. The lens 2 is held in place at three points by clamps one of which is shown in section and comprises a part spherical segment 22 held in a ring 22 to which is clamped a bolt 25 carrying a fixing piece 31 also supporting a spherical segment 33 the line joining the spherical segments passing through the common centre of curvature of the surfaces of the lens 20. Specifications 637,645 and 638,975 are referred to.
Patent GB-578885-A (GB)
Title: Improvements in or relating to the manufacture of gelatine detonating explosives
IPC: C06B25/30
Filed: 1943-11-17
Abstract: 578,885. Explosives. HARRIES, C. R. S., HORNEL, J. C., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 17,1943, No. 19167. [Class 9 (ii)] Chopped cereal straw shreds 1/3 to 1 centimetre in length are distributed throughout a gelatine detonating explosive composition which comprises a solution of nitrocellulose in a liquid nitric ester and solid ingredients insoluble in the ester. The shreds may be obtained by feeding chopped straw into a disintegrator which splits the straw tubuli.
Patent GB-885124-A (GB)
Title: Process for purifying high molecular weight olefin copolymers
IPC: C08F6/02
Filed: 1958-06-16
Abstract: Linear copolymers of b -olefins with each other and/or with other unsaturated hydrocarbons, obtained by the use of catalysts formed by contacting compounds (e.g. halide, oxyhalide or alkoxyhalide) of Group 4a, 5a or 6ametals with organo-metallic compounds (e.g. aluminium alkyls), are purified by a process comprising mixing a hydrocarbon solution of the copolymer with aqueous mineral acid, allowing separation of the mixture into two layers of which the aqueous layer is removed, and then mixing the non-aqueous layer with water to remove acid from the polymer solution.  In examples, ethylene/propylene copolymers in heptane or benzene are purified with nitric, sulphuric or hydrochloric acid.  Alcohols may be used both in transforming catalyst residues into soluble complexes and in final precipitation of polymer. Apparatus is described for effecting a continuous process. Specifications 856,733, 856,734 and 858,067 are referred to.
Patent GB-422560-A (GB)
Title: Improvements in or relating to machines for exercising a pressing or pressing and rubbing action upon seamed workpieces of sheet material
IPC: A43D55/00
Filed: 1933-07-07
Abstract: 422,560. Boot - making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., Belgrave Road, Leicester.-(United Shoe Machinery Corporation; 140, Federal Street, Boston, U.S.A.) July 7, 1933, No. 19248. [Classes 17 (i) and 112] Uppers, machines for; seams.-A seam pressing machine has a work support 16 in the form of a freely rotatable roll, a seam crease guide 35 on the roll, a seam ridge guide 36, a gauge for engaging the free end edge face of the ridge and a seam pressing member 17 and a seam setter 18 simultaneously moving in the same direction. The ridge guide comprises a pair of bell-crank levers 42, 43 geared together by a tooth 49 on one engaging a recess in the other, and urged towards each other by springs 50, 51 to a limit determined by an adjustable eccentric 52. The gauge comprises a grooved arm 37 having an upstanding shank slotted for adjustment and clamped by a screw 72. These members are carried by a block 47 laterally adjustable along the head of a rod 61 prevented from turning but allowed to rise against a spring 67. The seam presser has a fin 76 and a hammer portion 17 both with roughened surfaces. It is carried by a link engaging an eccentric 23 on a driven shaft at its upper end and slotted to engage a guide block 27 pivoted at 28. The seam setter 18 is heated and carried by similar mechanism, the pivot 34 of its guide block being nearer the eccentric than the pivot 28. In operation, a work-piece, e.g. a pair of quarters 11, 12 connected by the usual seam are positioned over the crease guide and between the flared ridge guides, the edge of the seam abutting against the gauge 37. As the presser descends the fin 76 forms a groove and as it moves rearwardly its roughened face feeds the work, the presser then rising and advancing out of contact wth the work to continue the grooving and feeding. Subsequent cycles cause the hammer portion 17 to flatten the out-turned edges and cause the heated setter 18 to smooth down these edges, the setter having a longer travel than the presser.
Patent GB-695565-A (GB)
Title: Improvements in or relating to hitch connections for connecting belt or the like driven apparatus to tractors
Inventor: CHAMBERS JOHN MALET
IPC: B62D49/02
Filed: 1950-08-02
Abstract: 695,565. Mounting hammer mills on tractors. FERGUSON, Ltd.. H. Aug. 2, 1951 [Aug. 2, 1950], No. 19272/50. Class 59 A tractor provided at the rear with upper and lower hitch links 1, 6 pivoted at. their front ends for up-and-down movement, by means of a power unit on the tractor, and a driving pulley 26 driven from the tractor power takeoff shaft is combined with a hammer mill which is pivotally connected to the rear ends of the hitch links for up-and-down movement therewith and includes a pulley 28 which is adapted to be driven from the pulley 26 by means of an endless driving belt 27, and check means 33, 34 for arresting the lowering movement of the links and mill to support the latter clear of the ground, the axis of the pulley 28 moving eccentrically with respect to the axis of the pulley 26 during up-and-down movement of the links so as to cause non-driving belt slackness when the mill is raised and adequate driving tension when the mill is lowered to the limit of the check means. The mill casing 8 has lateral flanges 38, Fig. 2, which are slidably supported on angle members 15, the latter being attached at their front ends to an upright frame formed by vertical angle members 17 and 22, Fig. 3, and horizontal angle members 18 and 19. On one side of the frame is attached an angled member 24 which together with the member 22 carries pins 23 whereby the frame can be attached to apertured balls 3 in the rear ends of the links 1. The attachment of the frame to the hitch links is completed by a pin 21 which is passed through an apertured ball in the rear end of the upper link 6 and through the apertured limbs of a U-member attached on the top angle member 19. The members 15 are also attached to the frame by a tie-member 16. The check means comprises a double strap 33 connected at its upper end to the link 6, which is adjustable, and pivotally attached at its lower end to a single strap 34, the latter being pivotally attached to lugs 35 on a transverse angle member 39 in the vertical frame. To adjust the belt tension, the mill. casing is adjustable by means of a screw 36. The casing flanges 38 are guided with respect to the angled members 15 by means of co-operating bolts and slots. A conduit 8A leads from the mill casing to a blower 9 discharging up a conduit 10 into a centrifugal separator 11 which has bifurcated discharge shoots 12. A feed hopper 14 for grain or the like and a feed shoot 13 for sheaves or the like are provided.
Patent GB-245680-A (GB)
Title: Improvements in or relating to combined electrical condensers and resistance units, more especially for use in radio circuits
IPC: H01G2/00
Filed: 1925-07-30
Abstract: 245,680. Dubilier Condenser Co. (1925), Ltd., (Assignees of Dubilier, W.). May 2, 1925, [Convention date]. Composite units.- In a combined resistance and condenser unit, more particularly for wireless circuits, the condenser mounting has two supporting brackets 6 connected to the condenser terminals, the resistance (e.g. grid leak) is mounted on these brackets, and one or both of the brackets is or are provided with a movable insulating block or bushing 12 so that the resistance may be connected up either in series with, in parallel with, or independently of, the condenser. The bushing may be fitted with an extending sleeve 15 for making contact with the terminal 10 of the resistance and use itself as a terminal, or the terminals themselves may be formed with extensions 18, Fig. 4, so that they will fit the bushings, or alternatively make contact with the bracket 6 when the bushing is not used.
Patent GB-775945-A (GB)
Title: Improvements in or relating to telescopic pit props
Inventor: WEINERT HANS
IPC: E21D15/34
Filed: 1955-07-05
Abstract: 775.945. Pit props. LINSINGEN, M. VON.. [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. July 5, 1955, No. 19455/55. Class 20(2) A telescopic pit prop has an inner member 1 gripped between a pair of diametrically opposite jaws 4, 5, each of which engages over half or a substantial proportion of half of the periphery of the inner member 1, at least one of the jaws being deformable about a central part 11 and being supported at its rear face, directly or indirectly by the prop lock 3, only at its side edges 8, whereby the side parts of the jaw are caused to turn inwards in pincer fashion to grip the prop part 1. In Fig. 2 both jaws 4, 5 are deformable about webs of material formed by grooves 7, 7a cut in the rear faces of the jaws which are concave. The jaw 4 is constructed as a drag wedge and its rear side edges 8 engage a distance piece 6 abutting a transverse locking wedge 13. A spring for returning the jaw 4 to its starting position when the prop is released is housed in an enlargement of the groove 7a. In a modification, Figs. 3 and 5, the outer prop part has an inclined wall 3a against which a jaw 4a of concave roller form having a weakened central portion bears by means of its edges 8b. The jaw 4a serves to hold the prop in an extended position when the prop is being prepared for setting. A release wedge 12 is provided beneath the jaw 4a. An inwardly and outwardly movable clamping jaw 4b tightened by a transverse wedge 13 is provided above the jaw 4a and a jaw 5a is provided diametrically opposite thereto, both of these jaws having the clamping forces applied to rear edge portions 8 so that they are deformed about a weakened central portion to produce the pincer like clamping movement. In a modification the web 11 is replaced by a leaf spring.
Patent GB-750805-A (GB)
Title: Improvements in or relating to waterproffing processes and materials
IPC: C04B41/49
Filed: 1953-07-14
Abstract: A composition for waterproofing masonry comprises an organopolysiloxane resin and an organic ester of titanic acid. The resin is preferably a methyl or methyl phenyl polysiloxane having an R/Si ratio of between 1 and 1.7.  Butyl titanate is the specified ester.  The composition may be in the form of a solution in a common solvent to which other ingredients such as paraffins, waxes and stearates have been added.  The resin and titanate may be applied successively to the masonry and the resin may also be formed in situ, e.g. by applying a solution of methyl tri-(2-chloroethoxy)-silane and butyl titanate in white spirit and allowing to dry.  Specifications 708,821, [Group VIII], and 723,989 are referred to.ALSO:Materials employed in masonry, such as brick, cement and plaster, are waterproofed by applying a coating of an organopolysiloxane resin and an organic ester of titanic acid, e.g. butyl titanate.  The resin and ester may be applied in admixture in a common solvent or as successive coatings.  Other materials such as paraffins, waxes and stearates may be added to the solutions.  The resin may also be formed in situ by applying a solution of titanate and hydrolysable silane which, after evaporation of the solvent, undergoes hydrolysis to the polysiloxane.  Specifications 708,821 [Group VIII] and 723,989 are referred to.
Patent GB-410635-A (GB)
Title: Purifying zinc
IPC: C22B19/04
Filed: 1933-07-10
Abstract: 410,635. Distilling zinc. NEW JERSEY ZINC CO., 160, Front Street, New York, U.S.A.-(Assignees of Ginder, P. M., Peirce, W. M., and Waring, R. K.; Pahnerton, Pennsylvania, U.S.A.) July 10, 1933, No. 19563. Convention date, May 26. Addition to 395,602. [Class 82 (i).] In a modification of the method of purifying zinc described in the parent Specification, zinc vapour is withdrawn from the rectifying column for removing cadmium and other contaminants of lower boiling point than zinc and delivered to a rectifying column for removing lead and other contaminants of higher boiling point than zinc. The cadmium eliminating column comprises an upper heat-insulated portion built of trays 20 and surmounted by a dephlegmator 24, and a lower portion built within a heating chamber 11 and comprising trays 13. The trays 20 are provided with openings 21, Fig. 3, and transverse ribs 22 of progressively increasing height, and the trays 13 comprise peripheral channels 15 with ribs 19, and opening 18, the ribs and channels of the trays serving to retain molten metal. Condensation in the dephlegmator is controlled by heat insulation and the condensed metal passes under a curtain or skimmer 25, Fig. 2, and over a dam 26, any floating dust being removed through a hole 27. Impure zinc is introduced continuously to the cadmium column from a well 31, Fig. 1, supplied through a valve-controlled opening 32. Metal from the cadmium column is conveyed through a tube 36 to the lead eliminating column which comprises lower trays 44, similar to the trays 13, built in a heating chamber 41, and insulated upper trays 50, similar to the trays 20. Purified zinc vapour passes through an exit 45 for further use, e.g., into a combustion chamber 46 where it is oxidized to zinc oxide. Impure zinc high in lead is discharged through a pipe 49.
Patent GB-320111-A (GB)
Title: Improvements in inhaling apparatus
IPC: A61M15/00
Filed: 1928-07-06
Abstract: 320,111. Riley, E. July 6, 1928. Inhalers. - A rubber or other flexible shield A, fitting over the nose, is divided into two chambers A', A<2> by a perforated partition B. The chamber A<1> is filled with cotton-wool or the like impregnated with inhalable liquid and is provided with one or more holes b<2> in its lower wall and a row of holes b<1> opposite the lips. The chamber A<2> is provided with exhalation apertures b<3> in its upper part. The device is secured by a rubber band passing round the head and provided with hooks engaging eyelets a ia the edges of the shield.
Patent GB-777408-A (GB)
Title: Estimation of dross in feathers
IPC: G01N5/00
Filed: 1955-07-07
Abstract: 777,408. Sifting apparatus. HARRISON & JONES Ltd., and HARRISON, W. A. July 7, 1955, No. 19622/55. Class 117 A machine for separating dross from a sample of feathers consists of a fixed cylmetrical chamber C which is supplied with the feathers through, an inlet 17 and which has detachable perforated upper and lower outlet members 16 and 11 and an agitator system A. The smaller feathers and dross pass through the member 11 on to a vibrating screen S, and the smaller feathers are retained on the screen and the dross passes on to a tray R. The agitator system consists of a rotary shaft 20 with radial arms 21 carrying scoops 22. Vibration of the screen is effected by an eccentric shaft 30 mounted with its ends in fixed bearings and its eccentric portion mounted in bearings 33, 34, carrying the screen frame .35. Tension springs 36 anchor the frame at its corners and the screen is retained by clips 37, 38. A duct 50 extends upwardly from the outlet member 16 and suction fans F, F<SP>1</SP>, assist the agitation within the chamber and draw material upwardly through ducts 50-53 and feed it to a bar 55. A motor M drives the agitator and vibrator systems and the fans through belt and chain drives.