baber/WOPTO huggingface dataset:
Patent GB-327546-A (GB)
Title: Improvements in and relating to plate clamps for the cylinders of printing machines
IPC: B41F27/10
Filed: 1929-03-11
Abstract: 327,546. Marks, Sir G. C., (Wood Newspaper Machinery Corporation). March 11, 1929. Printing-surfaces.-Plate-clamps for the cylinders of a. printing-press are provided with releasing-means which are operated by the press and, for instance when the cylinders are driven at printing speed, can be rendered, inoperative. In the arrangement shown in Figs. 1 and 3, each cylinder 11 is provided at the ends with two halfrings 10 having guide-rods 19 engaging springs 18 which normally hold the rings in engagement with the platen P. Each half-ring is formed with a groove 20 containing a cam 21 for cooperating with a coned roller 26 on a yoke 23 secured to a shaft 27 which is provided with an arm 28 engaging the plunger 29 of a solenoid 30. The roller is normally out of the groove, the yoke being held up by a spring 31 on the plunger, and a latch 34 co-operating with the arm 28. Stops 33 limit the movements of the arm. On depression of one of a pair of push-buttons 14, the yokes 23 at one side of the press are depressed, and the cylinders are driven at low speed until the cams on the top rings at one side of the press engage the. rollers 26 and retract the half-rings, thereby releasing the top plates at, one side of the press and permitting removal thereof. The half-rings are held retracted by co-operation of the rollers with undercuts in the cams.. On re-starting the cylinders, the cams leave the rollers and the half-rings are restored to clamping position. The press is driven normally by a motor 16, or is driven at low speed by another motor, and to prevent operation of the motor 16 when the solenoids 30 are energized, the pushbuttons 14 open contacts 13 in circuit, with the motor 16. Similarlv when the motor 16 is running, a circuit breaker 9 opens contacts 8 in circuit with the solenoids. The solenoids may be dispensed with, the arms 28 being provided with handles for depressing the yokes 23 ; or handles may be provided in addition to solenoids.
Patent GB-1274661-A (GB)
Title: Improvements in and relating to probes
Inventor: PALMAN LEONARD
IPC: G02B23/24
Filed: 1968-02-16
Abstract: 1,274,661. Optical probes. L. PALMAN. May 16, 1969 [Feb. 16, 1968], No. 7857/68. Heading G2J. A probe for use by an electrician when threading wires between cavity walls comprises a tubular body 1 constructed from three telescoped parts 1A, 1B, 2 housing a telescope, an eyepiece 2A, and a mirror assembly 3 which is angularly adjustable relative to the eye-piece about the optical axis of the body 1 for scanning in a direction transverse to the optical axis of the telescope. The mirror assembly comprises two generally triangular mirrors 3A, 3B which are attached to each other at 90 degrees and which lie offset a distance d from and are inclined at 45 degrees to the optical axis of the telescope. The assembly also includes a top plate 3D having a viewing aperture 3E in line with the mirror 3A. The mirror assembly may be adjusted by a collar which is mounted on the tube 1A and has a rubber or plastics facing for engaging the wall surrounding the aperture through which the probe is inserted. A lamp having a directional bulb and mains or battery powered is provided adjacent the mirror assembly for illuminating the wall cavity. The probe may carry a grappling device for catching a searching wire, the device either comprising filamentary material carried on a reel and fed through a tube and hole in the body 1 to a fixing point to form a loop extending transversely of the body 1 or comprising flexible material supporting a hook. Graduations may be provided on the tube 1A and eye-piece 2A to indicate the relative angular position and distance of an object.
Patent GB-1040832-A (GB)
Title: Herbicidal compositions
IPC: A01N39/04
Filed: 1963-02-27
Abstract: A herbicidal composition comprises 1 to 10 parts by weight of 2, 4-dichloro phenoxyacetic acid or a salt or ester thereof and at least 10 parts by weight of 2-(2, 4-dichlorophenoxy)-propionic acid or a salt or ester thereof or at least 10 parts by weight of 2-(2, 4, 5-trichlorophenoxy)-propionic acid or a salt or ester thereof. Specified salts are the alkali metal, alkylamine and alkanolamine salts and specified esters are the alkyl, cycloalkyl aryl, arylalkyl hydroxyalkyl and alkoxy alkyl esters.  The compositions may be in the form of solutions, emulsions, suspensions powders or granules and may contain adjuvants toxic to weeds such as phenols, kerosene, fuel oil, gas oil and coal tar derivatives.  Fertilisers e.g. urea and ammonium nitrate and compounds containing Zn, Fe, Mn, Cu, Co and Mg may also be present.
Patent GB-658548-A (GB)
Title: Improved moulding apparatus for forming pipes or other cylindrical bodies of concrete or like material
IPC: B28B21/24
Filed: 1949-03-23
Abstract: 658,548. Moulding pipes &c. from concrete &c. ROCLA, Ltd. March 23, 1949, No. 7950. Convention date, July 20, 1948. [Class 87 (ii)] The mould 1 is supported internally by a freely rotatable roller 3 eccentrically disposed within the mould. The mould is rotated by a belt 4, the concrete or like material C being carried around and compressed between the roller &c. and the mould. The roller is supported in three spaced bearings 6, 7, 8. The bearing 6 can be swung clear to allow removal and replacement of the mould. Collars 13 on the roller keep the mould in place. In a modification (Fig. 5, not shown), these collars have stepped portions on which the mould may be supported with the formed pipe clear of the roller, to allow trowelling of the inside of the pipe. The mould 1 is made of a metal plate flexed to form a tube, the flanges 1a thereof being bolted together. End rings 2 are secured to the mould by beads 12 pressed out of the metal plate. The belt 4 is disposed between stiffening flanges 9 on the mould. The Specification as open to inspection under Sect. 91 states that the rotatable ring 3 may be replaced by a fixed support of cylindrical or part-cylindrical section. This subject-matter does not appear in the Specification as accepted.
Patent GB-1298995-A (GB)
Title: Improvements relating to disc brakes
Inventor: REES JOHN ROBERT
IPC: F16D55/14
Filed: 1970-02-19
Abstract: 1298995 Disc brakes GIRLING Ltd 19 April 1971 [19 Feb 1970] 7991/71 Heading F2E In a disc brake wherein two adjacent pressure plates 6, 7 are moved axially outwardly against rotatable friction plates, e.g. by balls in inclined recesses, the pressure plates are actuated by a cam 11 which, when rotated, causes push rods 12, 13 having ends 16, 17 in pockets in the cam, to move pressure plate lugs 14, 15 apart, the push rods being biased into the cam pockets by resilient clips 23, 24. Each clip is formed from spring steel wire and comprises two arms 24 with  inwardly bent parts at one end to locate in 4 holes in a corresponding pressure plate lug 14, 15, a loop 23 at the other end to locate in a groove in the corresponding push rod 12, 13. The unstressed clips are of the shape shown in  broken lines, and are stressed when located in the lugs 14, 15. This allows a face 22 in each pocket 19, 20 to be extended back to position 28  to allow greater range of adjustment for brake wear. Alternatively, both clips are formed from a single wire, each clip part having a single arm 24 and a loop 23 and being joined by a coil around the cam 11. Each friction plate has friction rings or pads on either side, the outer side contacting a housing wall. Reference has been directed by the Comptroller to Specification 1,244,906.
Patent GB-460936-A (GB)
Title: Method of transforming a reciprocating rectilinear movement into a circular movement or conversely
IPC: F16H21/30
Filed: 1936-03-17
Abstract: 460,936. Converting reciprocating into rotary motion. MARCHOU, E. R. March 17, 1936, No. 8001. Convention date, March 20, 1935. [Class 80 (i)] [Also in Groups XXVI, XXVII, and XXVIII] In mechanism for converting reciprocating into rotary motion and vice versa, applicable to steam and internal-combustion engines, compressors and pumps, a shaft 1 has a crank 2, on the pin 3 of which is loosely mounted a toothed wheel 4 in constant mesh with an internal gear ring 5 fixed relatively to the machine frame. The diameter of wheel 4 is half that of the gear ring. On the face of wheel 4 is eccentrically secured a disc 6 the centre of which is at 7, and this disc is surrounded by a strap 8 to which is secured a connecting-rod 9 connected to a piston 10. The locus of the centre 7 during a complete revolution is an ellipse, the slope of the axes of which can be varied by variation of setting of the toothed wheel 4. The movement of the piston 10 from upper dead-centre position differs from that of an ordinary crank drive, in fact the point 7 may even rise after the crank 3 has passed its vertical position, thus increasing the force of expansion of the gases in an internal-combustion engine.
Patent GB-526312-A (GB)
Title: Rammer especially for road making
IPC: E01C19/32
Filed: 1939-03-13
Abstract: 526,312. Road rammers. BORGMANN, J. and BRUCH, G. March 13, 1939, No. 8010. [Class 107] A rammer, particularly for road making, comprises a triangular prism 1 mounted on an axle 3 carried by U-section members 2 connected to a handle 6. Forked members 16, at the end of rods 15 lock the rammer with any desired one of its faces in working position, the rods 15 having handle portions 18 whereby the rods may be lifted against the pressure of springs 19 to free the rammer, so that another of its faces may be brought into use. A container 4 for liquid, communicating with a spraying- tube 5 by means of a valve 8 controlled by a pressbutton 10, is located between the members 2 so that cleaning liquid may be sprayed on the inoperative faces of the rammer. The container 4 has a filling connection, and the tube 5 is provided with a detachable cover sealing an aperture by means of which the valve 8 may be inspected or renewed.
Patent GB-752452-A (GB)
Title: Improvements in or relating to electron discharge devices
Inventor: KREUCHEN KARL HEINZ
IPC: H01J23/027
Filed: 1953-03-24
Abstract: 752,452. Velocity-modulated tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 15, 1954 [March 24, 1953], No. 8013/53. Class 39 (1). In an electron discharge device having a hollow elongated electron collecting electrode, a barrier is provided within and extending across said electrode away from the open end thereof and is arranged so as to allow electrons to pass into said electrode but substantially prevents electrons or charged particles from escaping therefrom. The structure shown is part of a high-power klystron and comprises a drift tube 1 and resonator 2 through which an electron beam is projected into a hollow collecting electrode 4 of stepped construction which is cooled in operation by the circulation of fluid or forced air over its external surface. The electrode 4 is made of copper or iron which readily acquire an oxidized surface which is bombarded by electrons so that secondary electrons and charged particles such as positive ions are released. In the normal course of events these secondary electrons and charged particles would return through the resonator 2 to form an additional beam loading which would reduce the efficiency of the device, while the positive ions would bombard the cathode, resulting in poisoning in the case of an oxide cathode. According to the invention a barrier comprising four structures, Fig. 2, each in the form of a grid having a series of slats 7 arranged across a circular frame 8 is secured to the annular steps 6 along the wall of the electrode 4 to collect the secondary electrons and charged particles. The barrier structures are arranged so that the slats 7 in successive structures assume different angular positions relatively to the axis of the electrode 4. The secondary electrons and charged particles travel mainly in a direction towards the axis of the electrode 4 and will thus in all probability strike one of the slats 7 and be collected thereby. The open end of the electrode 4 is made conical in shape to collect any secondary electrons produced by electrons of the beam striking the edges of the slats 7 of the first barrier structure. A more efficient arrangement whereby the charged particles are fixed or absorbed as by a gettering action may be achieved if the slats 7 are either formed of or coated with a getter material such as zirconium, thorium, tantalum, molybdenum or hafnium. By suitably selecting the surface area of each slat 7 it may be arranged that the centre of the slat attains a temperature of about 1000 C. under the primary electron bombardment, at which temperature the getter materials are most efficient. Since positive ions are prevented from returning to the cathode, an oxide-coated cathode may be employed in the high-power device. A barrier of the kind described may be employed in the collecting electrode of a travelling-wave tube.
Patent GB-374891-A (GB)
Title: Device for printing or reproducing coloured images from negatives on colour screen material
IPC: G03C7/04
Filed: 1931-03-17
Abstract: 374,891. Colour photography. LINDEMANN, F. A., Christ Church, Oxford. March 17, 1931, No. 8108. [Class 98 (ii).] Relates to apparatus for printing multicolour screen photographs of the type in which spaced negative and positive films &c. are fed past a printing light, and consists in the provision of an optical system so arranged as to project smultaneously two or more rays of light in different directions through the negative screen elements so as to produce corresponding separate but closely adjacent images of the screen elements upon the positive film and eliminate screen pattern. As shown in Fig. 2, two lamps 16, 17 are so disposed in front of apertures 18, 19 as to project rays from two different directions upon the negative film 11 and produce two corresponding images of each colour element upon the positive film 15. Fig. 3 shows a modification in which a single lamp 21 is employed in conjunction with a lens 23 and bi-prism 24. In further modifications, a set of mirrors arranged at a small angle, or suitably cut lenses may be employed. The optical system is preferably such as to produce a series of images disposed in a similar pattern to the colour screen. Specification 15937/08, [Class 98, Photography], is referred to.
Patent GB-403362-A (GB)
Title: Complete and continuous change speed and drive gear
IPC: F16H37/00
Filed: 1932-03-18
Abstract: 403,362. Variable-speed gearing. LAILLE, J. R., 29, Quai Maubec, La Rochelle, Charente-Inferieure, France. March 18, 1932, No. 8117. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 21, 1932]. [Class 80 (ii).] A drum B, Fig. 1, secured to the driving shaft A of a variable-speed gear carries worms C, engaging a worm wheel D<1> on the driven shaft D, the worms being connected through gears E, F, G, H to an expansible pulley I loose on the shaft D and connected by a belt I<1> to a similar pulley J rigid with a pinion K engaging a toothed part L of the drum, the pulleys I, J being adapted to be simultaneously expanded and contracted, so as to vary the speed of the driven shaft, by means of sleeves Q, Q<1> movable, through the intermediary of a member M<1>, by a screw M. Each pulley comprises side plates with cross members P, Fig. 3, which form the tread and which are slidable in radial grooves P<1> under the action of wedge members R formed on the sleeves Q, Q<1>.
Patent GB-1111451-A (GB)
Title: Improvements in or relating to pharmacologically-active secondary amine compounds
IPC: A61K31/135
Filed: 1965-02-25
Abstract: Racemic and optically active 1-(p-hydroxyphenyl) - 2 - [21 - (p - hydroxyphenyl) - ethylamino] propanol and acid addition salts thereof are prepared by standard methods, such as reducing an aminoketone of the general formula <FORM:1111451/C2/1> (wherein Y and Y1 represent hydroxy or etherified or esterified hydroxy groups) or an acid addition salt thereof and hydrolysing or hydrogenolysing the product if necessary, optionally followed by salt formation, separation of a mixture of the racemates and/or resolution.  The preparation of aminoketones of the above general formula is described.  The compounds of the invention possess uterospasmolytic and broncholytic activity, and may be administered in the form of pharmaceutical preparations containing them together with a carrier.
Patent GB-314596-A (GB)
Title: Improvements in or relating to straining-covers or closures for drains, waste pipes for sinks, and the like
IPC: E03C1/282
Filed: 1928-12-17
Abstract: 314,596. Pratt, A. R. Dec. 17, 1928. Traps.-A strainer cover or closure for drains, waste pipes of sinks, &c. comprises a perforated or strainer disc 1, a tubular member 2 depending from the disc, and a pivoted trap disc or flap 3 normally closing the end of the tubular member but adapted to be moved by the weight of liquid passed through the strainer, approximately one half of the pivoted flap overlapping the corresponding half of the inclined lower edge of the tubular member 2 to form a seal and to limit the closing movement, and the other half of the flap 3 being weighted and reduced in size to pass into the tubular member 2 when the flap is opened and to form a seal against the interior wall of the tubular member when the flap is closed. The perforations in the disc 1 are located only over the outlet half of the pivoted flap 3.
Patent GB-1211402-A (GB)
Title: Improvements relating to electrodes for rechargeable cells and cells incoporating such electrodes
Inventor: POPAT PRANJIVAN VELJI
IPC: H01M10/34
Filed: 1968-02-20
Abstract: 1,211,402. Cadmium electrodes; secondary cells. TEXAS INSTRUMENTS Inc. 20 Feb., 1968 [5 May, 1967], No. 8191/68. Heading H1B. A cadmium electrode comprises a particulate, electrochemically active cadmium material bound by an organic binder to a foraminous substrate, all the surfaces of which are of cadmium. The substrate can be a cadmium wire screen or a cadmium plated nickel screen. Electrodes may be made by pasting the substrate with a mixture of CdO and polyethylene particles in water, drying and compacting the pasted substrate and heating to 300‹ F. to fuse the binder and form the electrode. PTFE can also be used as the binder. The electrodes can be used in sealed, alkaline Ni-Cd secondary cells in which the container is preferably coated with cadmium on the inside.
Patent GB-550327-A (GB)
Title: Improvements in safety razors
IPC: B26B21/24
Filed: 1941-07-30
Abstract: 550,327. Safety razors. BENJAMIN, S. H. June 30, 1941, No. 8209. Convention date, July 27, 1940. [Class 30] A safety razor has movable abutments adapted to secure a razor blade and to be actuated to release the blade by a blade-ejector magazine which deposits a new blade and withdraws the used blade without detaching the clamp plate. The guard 30, Fig. 1, for a double-edged blade has an end incline 32 to enter the top face of the magazine between the guard and the blade 100. The blade is retained by fixed abutments on the guard and by pivoted abutments 47, 62 held up by spring-pressed levers 46, 55 having arms 41, 54 which project above (he sides of the guard into the path of the magazine. The clamp plate 74 has a spindle 77 with an elongated part 76 so that it can be raised without rotation for blade changing br raised further and rotated to hold it in this position for cleaning, the guard having openings 65 for the passage of water. The guard has a threaded extension 66 receiving the handle.67 which carries a sleeve 69 connected to a flat member 73. This member 73 engages slits in a sleeve 80 threaded on to the spindle 77, a spring 83 being provided between the guard and sleeve 80. The blade may have two or three apertures on each side of a central recess, or an elongated slot may be used instead of the apertures. A guard 200, Fig. 26, for single edged blades, has fixed abutments 204 and movable abutments 219 which are either at or just within the side edges of the blade, the abutments 219 being released by spring-pressed arms 214. Apertures 203 are provided for cleaning water and for shaving waste. Specification 550,328 is referred to.
Patent GB-127873-A (GB)
Title: Process of Producing Propellant Explosives.
IPC: C06B21/00
Filed: 1917-06-09
Abstract: 127,873. Du Pont de Nemours & Co., E. I., (Assignees of O'Neil, A. S.). Aug. 17, 1916, [Convention date]. Explosives.-Relates to grains of propellant explosives coated with a deterrent material such as dinitrotoluene, and consists in subjecting the explosive to a heat-treatment in the presence of the deterrent mixed with a substance adapted to lower the melting-point of the deterrent. For example, the explosive is rumbled in a drum with a mixture of dinitrotoluene and camphor, to which diphenylamine may be added; the drum is allowed to stand over night, then rumbling is again performed, this time at a temperature of 65‹ C., and graphite is added in two stages, first to prevent the grains from sticking, and finally to complete the glazing of the grains.
Patent GB-375307-A (GB)
Title: Improvements in electric devices for driving the turntables of talking machines
IPC: G11B17/00
Filed: 1931-03-18
Abstract: 375,307. Gramophones. POLLUXMOTOREN-VERTRIEB GES., 2A, Antonstrasse, Albertplatz, Hochhaus, Dresden, Germany. March 18, 1931, No. 8327. Convention date, Sept. 27, 1930. [Class 40 (ii).] Comprises an electric-motor turntable unit of the kind contained in a disc-like casing which can be mounted on an existing talking machine after removal of the old turntable, the cover of the casing being rotatable to serve as a turntable and being driven by means of an electric-motor accommodated, together with a governor, within the casing. According to the invention, a comparatively high-speed electricmotor is used which drives the turntable through speed-reduction gearing which may comprise a friction roller. As shown, a casing 1 contains an electric -motor 2 whose shaft carries a friction roller 5 against which a roller 6 is pressed. The roller 6 is arranged on a lever 7, Fig. 3, provided with a slot 8 through which projects a pin 9 and the roller is pressed by a spring 10 into contact with the roller 5 and the cover 11 of the casing, to drive the latter which forms the turntable. The turntable drives a governor 12 whose shaft B carries a friction roller 14 in contact with a roller 15 which is secured to a lever 17 and is similarly spring-pressed by a spring 19. The governor can be adjusted to the required speed of rotation by turning a nut 24 to move a slide 21, biased by a compression spring 25, into contact with the collar 20. The original turntable spindle is accommodated in a bore 27 of a pin 26. Screwed to the turntable 11 is a bush 28, and a slide 30 is adapted to engage a groove 29 in the bush 28, the front end of the slide projecting from the outer wall of the casing 1 so that the turntable 11 may be locked by a screw and nut 31. The casing is carried on three adjustable screw feet 38 each of which passes through a threaded guide 39, and the lower end of each foot is provided with a resilient covering 40. To eliminate noise, the motor 2 is disposed on a frame 32 connected with the bottom of the casing by elastic holders 33 and plates of sound-deadening material 34.
Patent GB-854138-A (GB)
Title: Improvements in or relating to drafting machines
Inventor: DARGUE ERIC LEWIN
IPC: B43L7/00
Filed: 1958-03-15
Abstract: 854,138. Draughting machines. DARGUE BROS. Ltd. March 9, 1959 [March 15, 1958], No. 8384/58. Class 97(3) A draughting machine comprises a protractor head provided with one or more arms 32, 34, which are apertured at 38 to receive three studs 36 protruding from an adjusting plate 22 secured to a scale 10. The studs 36 are shewn as being pressed out of plate 22 but they may be formed by pegs fitted into holes in the plate. In another form the three studs are provided on the arms 32, 34, to enter holes in the plate 22. The plate 22 is secured to scale 10 by screw 24 passing through hole 30 into a screwed ferrule 16 and screw 26 passing through elongated aperture 28 into screwed ferrule 18 to allow limited adjustment of the scale 10 relative to the plate 22. The arm 34 and scale 10 are locked together by screw 48 entering screwed ferrule 20.