baber/WOPTO huggingface dataset:
Patent GB-806399-A (GB)
Title: Method of and apparatus for internal gear finishing
IPC: B23F19/06
Filed: 1957-03-29
Abstract: 806,399. Gear-finishing; chucks. NATIONAL BROACH & MACHINE CO. March 29, 1957 [May 28, 1956], No. 10327/57. Class 83 (3). A method of loading an internal-gear G into a gear-finishing machine consists in supporting the gear G on the tool T in mesh therewith, and relatively moving the tool and a chuck 30 until the gear is within the chuck, where it can be clamped. The chuck is rotated on a head 16 and the tool T is carried on a slide 22 reciprocable on a vertically-adjustable knee 12. The gear is clamped by three dogs 48 on rods 46 which are moved by arms 40 attached to the head 39 of a pneumatically-operated draw-bar 36. Each rod 46 is helically slotted to engage a fixed pin 56 which rotates the dog out of the path of the gear when the draw-bar is moved forwardly to engage ejector pins 60. An ejected gear is caught by springs 62 and removed manually. A gear to be finished is first placed on the tool and is then clipped under a spring 78 on a locating-device 68, 72 secured to the toolspindle support 66. The locating device also has two fingers 76 which prevent rocking of the gear but do not normally come into contact therewith. When the gear has been moved towards the chuck, it is pulled thereinto by the dogs 48, the parts then being in the positions shown in Fig. 3, which is a view from below. The fingers 76 may extend on the outside instead of within the chuck, the dogs. 48 may be radially movable instead of swinging, and the tool, instead of the work, may be rotated.
Patent GB-907658-A (GB)
Title: Improvements in or relating to textile raising machines
Inventor: MAGARSHACK JOHN MARTIN
IPC: D06C11/00
Filed: 1958-04-01
Abstract: 907,658. Nap raising machines. COTTON, SILK & MAN-MADE FIBRES RESEARCH ASSOCIATION. April 1, 1959 [April 1, 1958], No. 10358/58. Class 42 (1). A nap-raising machine is provided with means for indicating the torque input to at least one roller of a series which means includes a dynamometer comprising a drive transmission assembly subject to a deflection, the magnitude of which is in direct proportion to the torque being transmitted, and means for visually indicating the magnitude of the deflection. A belt pulley 13, Fig. 2, loose on the end of a roller 11, transmits drive to the roller via a leaf-spring 18 secured at one end to the roller by a clamp 19 and at the other end to pulley 13 by two adjustable screws. The transmitted torque causes deflection of spring 18 and relative displacement between two commutators 14, 15 secured, respectively, to the pulley and the roller, the magnitude of the displacement being proportional to the torque. In each commutator, every third segment is connected together, and the commutators and their brushes 25, 26 are connected through slip-rings to a source of power and a meter so that the meter will indicate the torque. A suitable circuit is shown in Fig. 4a, the timing of the commutator switching being as in Figs. 4b and 4c, so that a square waveform current flows through meter M only when the commutators A, B are relatively displaced, the pulse length and hence the mean current being proportional to the displacement and hence to the torque.
Patent GB-232952-A (GB)
IPC: F16D41/061
Filed: 1925-04-21
Abstract: 232,952. Salomon, F. M. M. B. April 26, 1924, [Convention date]. Ratchet gearing.-In friction ratchet gearing of the kind depending on the jamming-action of rocking cams, such cams are carried by radial camshafts and act on the faces of discs concentric with the driving or driven shaft. An oscillating driving drum 10<a>, 10<b>, 11, Fig. 1, runs freely on the shaft 1, which carries a wheel-like member 2, 4', 4 having bearings for four pairs of camshafts 7<a>, 7b. The wedging-cams 8a, 8<b> roll on each other by concentric surfaces, which merge into eccentric surfaces for preventing excessive movement in the disengaging-direction, and, during backward motion of the driving-member, present to the walls 10<a>, 10<b> thereof concentric surfaces which may be either almost or just in contact therewith. Auxiliary cams 9<a>, 9b, having concentric arcuate surfaces rolling on each other and on inner zones of the walls 10<a>, 10<b>, act to bring eccentric surfaces on the cams 8<a>, 8<b> into jamming-contact with the driving-member when it turns forward and to bring them out of effective contact on backward movement. Fig. 5 shows a modification, in which the camshafts are carried by the driving-drum 23, the wedging cams 30<a>, 30<b> and the auxiliary cams 31<a>, 31<b> acting on the walls 34<a> 34b thereof and on a driven disc 22. Extensions 29a, 29b of the cams 30a, 30b roll on each other and are provided with eccentric parts to limit the camshaft movement. In both forms, adjustable thrust bearings 32 are provided for the camshafts, the oscillating member may be lightened by drilling holes therein, and the functions of the driving and driven parts may be interchanged. Eccentrically-mounted rollers on the camshafts or springs, or both may be used for limiting the camshaft movement. The Specification as open to inspection under Sect. 91 (3) (a) states that the camshafts may be carried by the part 22. This subject-matter does not appear in the Specification as accepted.
Patent GB-711658-A (GB)
Title: Improvements relating to modulating apparatus
Inventor: ROBERTS WALTER GEORGE FRANCIS
IPC: H03C1/00
Filed: 1952-04-25
Abstract: 711,658. Photo-electric modulating systems FERRANTI, Ltd. April 27, 1953 [April 25, 1952], No. 10407/52. Class 40 (3). [Also in Group XXXVI] In apparatus for amplitude modulating an A.C. signal, the electron beam of a cathode ray tube is intensity varied at the frequency of the signal while being made to produce a persistent linear trace ; the amplitude modulating signal is then used to displace the trace in a direction perpendicular to its length, and a mask situated on the front of the tube is so shaped as to vary the length of the trace from which a photo-electric cell receives light so that the cell output is at the input frequency but amplitude modulated by the modulating signal according to a law determined by the mask. The invention is described with reference to amplitude modulating a 50 cycle A.C. servo signal linearly in accordance with the position of a shaft. As shown the position of the shaft 10 with respect to a datum, is translated into the position of a potentiometer slider 12 with respect to the centre tap. The centre tap and slider are connected to the " Y " plates 16 of a cathode ray tube. The A.C. signal to be modulated is app'ied to the grid 22 of the tube and to the "X" plates 20 is applied a high frequency saw tooth signal. The persistence of the cathode ray tube screen is such as to be short with respect to the grid signal but long with respect to the time base. Thus the trace is a horizontal line which varies in intensity at the frequency of the grid signal. In front of the cathode ray tube is a mask 30 with a triangular aperture. According to the value of the deflecting signal on the "Y" plates, more or less of the trace is obscured by this mask and in consequence the output of photo-cell 25 receiving light through the mask is a signal at the frequency of the grid but linearly amplitudemodulated in accordance with shaft position. If the amplitude modulation is to be other than linear, e.g. exponential, a differently shaped aperture is employed A number of modulated signals may be provided by means of several masks each passing a part of the trace and each with its associated photo-cell. If a number of modulating voltages are to be combined this may be done in the external circuit or by applying different voltages to different deflecting plates. The output may also be modulated by moving the mask or by applying a signal to the cathode of the tube.
Patent GB-573558-A (GB)
Title: Printing of textile fabrics
IPC: D06P1/44
Filed: 1941-08-15
Abstract: Textile fabrics are printed by applying thereto a pigmented emulsion of the water-in-lacquer type, of which the continuous phase is a solution in a volatile organic liquid of a thermo - hardening melamine - formaldehyde resin, in which up to 85 per cent of the melamine may be replaced by urea, and then subjecting the printed fabric to a heat treatment, e.g. steaming at 100 DEG  C. The resin may be modified with a monohydric alcohol, e.g. butyl alcohol.  The solution preferably contains also a plasticizer, e.g. oil-modified alkyd resin, linseed oil, castor oil and dibutyl phthalate.  Suitable organic liquids are benzene, toluene, xylene, solvent naphtha, white spirit, butyl, isobutyl and amyl alcohols. Suitable pigments are azo pigments, metallic salts of nitroso-b -naphthol, phthalocyanine pigments, vat dyestuffs, chrome yellow, iron oxides, titanium oxide and lithopone.  The emulsion may also contain emulsifying agents or stabilizers, e.g. barium oleate, calcium and aluminium stearates, lanoline, bentonite, calcium or barium hydroxides, and precipitated chalk. Zinc oxide and strontium or barium carbonates may also be added. The emulsion may be applied to fabrics of cotton, viscose, or cellulose acetate by engraved rollers, from a block or by using a screen or stencil.  Specifications 482,345, 523,090, 538,993, 539,737, 544,157, 548,704 and 573,368 are referred to.
Patent GB-916514-A (GB)
Title: Improvements in or relating to industrial lift trucks
Inventor: POCHIN ALFRED DAVIS
IPC: B66F9/06
Filed: 1960-03-24
Abstract: 916,514. Lift trucks. INTERNATIONAL FURNACE EQUIPMENT CO. Ltd. March 16, 1961 [March 24, 1960], No. 10422/60. Class 78 (3). The lifting assembly of a lift truck comprises a carriage 13 which is movable vertically on a mast 27 and which is provided with upwardlydirected recesses or projections for detachably engaging with and supporting either forks or the like or a mast on which forks or the like are vertically movable. As shown, Fig. 1, the carriage 13, which is raised and lowered by an hydraulic ram 14, is provided with upwardly-facing recesses 16 which receive transverse bars 21 connected to forks 22, and a spring-loaded plunger 18 is provided to lock the upper bar 21 in position, the plunger being withdrawable by means of a pedal 19. The mast 27 is tiltable under the action of an hydraulic ram 15 and the truck is driven by a drive unit 11 incorporating a single steerable ground wheel 12. In a modification, Fig. 3, a lifting assembly comprising a mast 23, which incorporates an hydraulic ram together with an hydraulic pump and motor for raising forks 24 on the mast 23 is secured to the bars 21 which are detachably connected to the carriage 13 as before. The pump motor is provided with either a flexible lead 25 and socket 26 connected to the truck battery or a flexible hydraulic pipe connected to the main pump on the truck.
Patent GB-105784-A (GB)
IPC: F41G1/35
Abstract: 105,784. Graham, L. J., and Graham & Latham. March 27, 1916. Sights and methods of sighting.-Relates to sighting or laying devices of the kind in which the correct position of the gun for firing at a distant target is initially determined and recorded by reference to a fixed map or chart, the gun being subsequently aimed when the target cannot be seen, by restoring it to such position. According to the invention, a suitable source of illumination such as an electric lamp 6 is secured to the gun and projects an image or sighting mark on to the chart. The lamp is fixed in a tube 1 provided with a focussing lens 11, 12 and a ray shield 13. The tube is adjustable in any direction, on a clamp 3 secured to the rear cross-piece 2 of the gun. The device is applicable to a small arm mounted on a tripod.
Patent GB-105829-A (GB)
IPC: F23M5/02
Abstract: 105,829. Hamer, W. June 27, 1916. Settings.-To form a yielding joint between the shell a of a Lancashire or like boiler and the side walls c, spaces f of considerable depth are formed between the top tiles d of the side flues and the cover flags g, the spaces being filled with flax asbestos, slag wool, or similar material. The tiles are covered with sheet asbestos e to prevent the material in the space f from passing between the tiles and the boiler shell into the flues.
Patent GB-106744-A (GB)
IPC: F01L13/00
Abstract: 106,744. Butler, L. F. G., and Brazil, Straker, & Co. Sept. 15. 1916. Regulating. - Control mechanism, particularly adapted for the engines of aircraft, comprises means by which the throttle valve and the fuel-supply valve or the supplementary air valve may be opened independently, the backward movement of the throttlevalve lever returning the air valve or the fuel valve to a closed or predetermined position. In the arrangement shown in Fig. 2, a lever a has an arm 2 connected to the throttle valve, and an arm 3 carrying a rod 5 which slides freely in a tube 7 connected to the supplementary air valve or fuel-valve lever. In operation, the throttle valve may be opened by moving the lever a to the position 9, without moving the lever 4; the lever 4 may then be moved independently to open the air or fuel valve, and the closing movement of the lever a brings a nut 6 into contact with the tube 7 and returns the lever 4 to the closed position. A modification is described in which the control levers are adjacent; in returning. a projection on the throttle-valve lever engages the other lever and moves it into its closed position.
Patent GB-594021-A (GB)
Title: Improvements in self-closing nozzles
IPC: F16K3/26
Filed: 1945-04-27
Abstract: 594,021. Valves. HIGGINS, H. R. April 27, 1945, No. 10707. [Class 135] In a self-closing nozzle suitable for hosepipes and having an outer tubular member 2 into which screws an inner tubular member 1 having a quick pitch thread, and having at its inner end ports 4 and a sealing buffer washer 5 in a cup 11, the outer tubular member carries a ring 7 clamping a sealing member 8 between the tubular members to prevent seepage of liquid. The cup 11 is preferably conical, tapering away from the washer when the pressure is high and concave away from the washer when the pressure is low. Specification 434,968 is referred to.
Patent GB-417669-A (GB)
Title: Process for the separation of carbonic acid from gases containing the same
IPC: C01B32/50
Filed: 1933-04-10
Abstract: Carbon dioxide is separated from gases containing it by treating the gases with a solution of an alkali monochromate under pressure and at elevated temperature and liberating the carbonic acid by reducing the pressure.  The gases must contain no constituents which under the reaction conditions exert a reducing action on the chromate solution so that gases such as sulphur dioxide or hydrogen sulphide, if present, should be removed prior to the process.  The absorption stage may take place at temperatures of 50--100 DEG  C. and the carbon dioxide may be recovered from the solution at the same or higher temperature. The recovery of the carbon dioxide may be assisted by the employment of reduced pressure.  Stirring of the solution assists the absorption and the withdrawal of the carbon dioxide.  The energy required to compress the gas can be recovered by driving an engine with the gas coming from the absorption plant.  The escape of water during the reduction of pressure may be avoided by the use of a condenser.  An example relates to the recovery of carbon dioxide from lime kiln gases after the prior removal of sulphur dioxide, a sodium monochromate solution being employed.
Patent GB-1443442-A (GB)
Title: Lighting column
IPC: E04H12/00
Filed: 1973-03-06
Abstract: 1443442 Lamp posts PETIT JEAN & CO (UK) Ltd 6 March 1974 [6 March 1973] 10794/73 Heading E1B A metal, preferably aluminium or galvanized steel, lamppost has an access opening in its lower portion framed by strip material 12, 13, 16 extending perpendicular outwardly of the body of the post and the opening receives a door made from the material removed to form the opening. The frame may be made up of 4 straight members, a U section member and a straight member, 2 L section members and a straight member or 2 C section members. The upper member 13 of the frame has a downturned lip and the lower member 16 carries a captive nut 18 vertically movable between two supports 19. The upper edge of a door 21 is inserted under the lip and the other edges are pressed against the frame by engagement of a captive Allen screw 23.
Patent GB-540468-A (GB)
Title: Improvements in or relating to the manufacture of pockets or the like for garments
IPC: A41H33/00
Filed: 1940-06-25
Abstract: 540,468. Pockets, belts &c. GOORWITCH, N. June 25, 1940, No. 10850. [Class 141] [Also in Group VIII] A patch pocket is made by depressing the cloth by means of a former 3 into a shallow recess 2 in a block 1, causing the edges of the cloth to turn up, and then pressing or ironing down these edges 5 When removed from the block, and after removal of the former, the patch pocket is attached to the garment. The invention may also be used in the manufacture of belts.
Patent GB-1166305-A (GB)
Title: Improvements in or relating to Vapor Generators.
IPC: F22B1/18
Filed: 1967-08-31
Abstract: 1,166,305. Cooling reactors. GULF GENERAL ATOMIC Inc. 31 Aug., 1967 [22 Sept., 1966], No. 10885/69. Divided out of 1,166,304. Heading G6C. In a gas cooled, steam generating nuclear reactor, the core, heat exchangers and pumps are mounted within a prestressed concrete pressure vessel. To prevent the sudden, large, discharge of water and steam into the vessel interior upon the rupture of a individual heat exchanger tube, each tube is separately connected to exterior steam and feedwater heaters. A slow discharge of steam into the vessel occurs upon the fracture of a tube, so permitting detection and the application of safety measures. A steam reheating tube bank is placed in the gas coolant flow, upstream of the superheating banks, thus damping temperature fluctuation at the superheating barks. In an emergency, the reheater is connected to an auxiliary cooling system and overheating of the heat exchangers prevented. The superheating and evaporating sections of the exchangers are formed of different materials and the welded junction between the two is protected from the reactor coolant gas by a deflecting baffle.
Patent GB-685598-A (GB)
Title: Improvements in motor vehicles
IPC: B60B35/10
Filed: 1951-05-10
Abstract: 685,598. Spring suspensions; wheel arrangements; changing wheel gauge. HANNOYER, R. May 10, 1951 [May 10, 1950; Nov. 7, 1950], No. 11090/51. Class 108 (ii). An automobile vehicle comprises a shell of which the maximum width does not exceed the space occupied by one person, a seat in the shell, a parallologram link suspension device at each side of the vehicle, wheels carried by the devices and means whereby the devices may be deformed in such a manner as to cause the wheels to have the maximum track in the normal position, while in the garaging position the wheels are positioned below the vehicle by lifting the latter. In the arrangement shown in Fig. 1, front steerable wheels are connected to a tubular chassis 1 through parallelogram link suspensions and each of a pair of rear wheels 8, 8 is connected to the chassis through a pivoted link 9, one of the wheels 8 being driven from an engine 12. Each front suspension comprises an upper rigid arm 2 pivoted to the chassis and to a wheel carrier 15, and a leaf-spring 16 pivoted to the chassis and to a lower extension of the carrier 15. The spring 16 normally bears against a stop 21, Fig. 2. Steering is effected through a rack-and-pinion and an articulated track rod 7. In one arrangement, Figs. 10 and 11 (not shown), the track rod is adjustable in length. Locking means may be provided to retain the suspension in its operative position, or in its reduced track position. In another arrangement, Fig. 4 (not shown), the vehicle comprises a single steerable front wheel and a pair of reducible track wheels at the rear. In both arrangements coil or torsion rod springs may replace the leaf-springs 16. In another arrangement, Figs. 5 and 6 (not shown), the parallel link suspension is attached to a cradle member which is secured to the vehicle body. In an arrangement for attaching a rear wheel system, the end part of the body is formed as two ribs which are connected together by U-shaped vertical plate members between which are clamped a pair of longitudinals forming an engine cradle and a pivot for a wheel carrying arm. In a coil-spring suspension arrangement, Fig. 12 (not shown), the spring is secured to a lower rigid suspension link and normally bears against an abutment on the cradle while in the reduced track position the spring is disposed horizontally between the lower link and the wheel. In this arrangement the upper and lower links comprise tubular forks, Figs. 13 and 14 (not shown).
Patent GB-636213-A (GB)
Title: An improved apparatus for projecting images for eye testing
IPC: A61B3/032
Filed: 1947-04-25
Abstract: 636,213. Sight-testing apparatus. AUSTRALIAN OPTICAL CO.; Ltd. April 25, 1947, No. 11167. Convention date, Oct. 24, 1941. [Class 97 (i)] A sight-testing apparatus consists of a projector which forms an image of a sighttesting chart on a translucent screen disposed in front of said projector, and a plane mirror which is normal to the axis of the projector, is centred thereon and is located on the side of the screen remote from the projector to reflect the image on the screen to the eyes of a patient. In form shown, the projector 1 and the translucent screen 12 are formed as a single unit, the projector 1 being mounted on a pedestal 3 from which extend horizontal arms 4, 5 on which can slide carriers 8, 9 for the screen 12. The mirror forms a separate unit and is positioned to reflect the image of a sight-testing chart 2 formed on the screen by. the projector 1 to the eyes of a patient placed near the projector.
Patent GB-166952-A (GB)
Title: A safety device for preventing explosions in air compressors, delivery pipes and adjacent receivers
IPC: F04B39/00
Filed: 1920-04-22
Abstract: 166,952. 'Smith, W. April 22, 1920. Alarms operated by fusible devices; alarms for parts of machinery.-A fusible plug in contact with air from a compressor liable to overheating actuates an alarm. As shown, the delivery pipe 3 of a compressor 1 comprises a section 4 formed with an air chamber 5 communicating with the interior of the pipe by an opening closed by a fusible plug 7. The chamber is connected by a pipe 8<c> to a whistle or other alarm. A by-pass 25 with a cock 26 is provided for testing purposes.
Patent GB-665766-A (GB)
Title: Improvements in or relating to mechanical transmissions
Inventor: EDGE STANLEY HOWARD
IPC: G05G9/08
Filed: 1949-04-27
Abstract: 665,766. Fluid-pressure brakes. CLAYTON DEWANDRE CO., Ltd. April 6, 1950 [April 27, 1949], No. 11213/49. Class 103 (i). A mechanical transmission system, which is particularly suited for use in fluid-pressure braking systems for tractor-trailer units, is dependent on the provision, as shown diagrammatically in Fig. 1, of a cylinder f having a piston e therein, the force exerted on which by a constant vacuum or pneumatic pressure must first be overcome before the pedal a can be depressed to operate a brake through the linkage c. In Fig. 4, the invention is shown applied to a tractor trailer brake system in which the tractor brakes are applied hydraulically by a master cylinder 9 and the trailer brakes by a vacuum system comprising a reservoir 19 and control valve 13. Until the vacuum force acting on a piston in the cylinder 8 has been overcome, the brake pedal part 1, 11, pivots about point 2 and operates the valve 13, thereby applying the trailer brakes first and avoiding the jack-knifing of the vehicles. Thereafter, the force on the piston in cylinder 8 having been overcome, the pedal pivots as a whole about point 4 and applies the tractor brakes by the master cylinder 9. The lostmotion connection 5, 6 prevents interference with the normal operation if the cylinder 8 is inoperative. In a modified arrangement described, the pedal actuates directly a master cylinder, the delivery from which passes straight to a relay valve operating the trailer brakes and also acts against a resisting piston, according to the invention, controlling the tractor brake regulating valve.