baber/WOPTO huggingface dataset:
Patent GB-1511287-A (GB)
Title: Coder for the secam colour television system
IPC: H04N9/71
Filed: 1975-10-03
Abstract: 1511287 Colour television THOMSON-CSF 3 Oct 1975 [4 Oct 1974] 40667/75 Heading H4F S.E.C.A.M. coder for alternately generating the line sequential chrominance signals 1À5(B - Y) and - 1À9(R - Y) + D, where D is a signal for compensating for the difference between the resting frequencies of the subcarrier which is frequency modulated by the alternate chrominance signals, comprises an operational amplifier formed by a differential amplifier 2 and two parallel networks 21-23 and 31-34 of resistances connected to the two inputs of the differential amplifier which are line alternately blocked by a switching device 3 controlled by a half line frequency squarewave signal. Signals k,B and k 3  Y are applied to resistors 21 and 22, and signals k 2 R, k 3 Y and k 4 D to the resistors 31, 32 and 34 where algebraical factors k 1  and k 2  have the opposite sign to k 3  and k 4 . The standard sawtooth identification signals I R  and I B  = - I R  may be inserted in the composite chrominance signal produced by amplifier 2 during nine vertical blanking interval line periods by supplying a signal I' to the two inputs of amplifier 2 via resistors 23 and 33. The composite chrominince signal from amplifier 2 is fed to a pre-emphasis circuit 6 which is preferably blocked during the horizontal and vertical blanking periods, and then a clipping circuit 7. The luminance signal - Y is  formed by operational (differential) amplifier 1.
Patent GB-1459086-A (GB)
Title: Manually operable braking means for motor vehicles
IPC: B60T7/10
Filed: 1973-08-30
Abstract: 1459086 Hand brake mechanisms J WOOD 5 Sept 1974 [30 Aug 1973] 40762/73 Heading F2E A vehicle parking or emergency brake is applied indirectly by a hand-operated rocking device 1 mounted adjacent a brake hand lever 17, Fig. 1. Fig. 3 shows the rocking device 1 alone seen from the side opposite to that shown in Fig. 1. A lift arm 6 connected by a pivot pin 18 to a handle arm 5 and when the latter is pulled clockwise in relation to Fig. 3 a roller 12 at the end of lift arm 6 engages the underside of lever 17, raising it to the brake applied position. Movement is continued past a top dead centre position of arm 6 relative to lever 17, whereupon movement of handle arm 5 is arrested by an adjustable stop 7. The assembly is now in the position of Fig. 1. Return of handle arm 5 permits controlled release of the brake. The pawl-and-ratchet mechanism (not shown) controlled by button 19 is permanently disengaged by a pin 20. A carrier bar 3 on which the bearing 9 of pivot pin 18 is mounted is vertically adjustable to adapt the device to existing vehicles.
Patent GB-933018-A (GB)
Title: Improvements in and relating to speed measuring apparatus for rail vehicles
Inventor: PUGH DAVID FREDERICK
IPC: B61K7/00
Filed: 1960-11-29
Abstract: 933,018. Measuring electrically. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Sept. 22, 1961 (Nov. 29, 1960], No. 40930/60. Class 40 (1). [Also in Group XXX] Apparatus for measuring the speed of a railway vehicle comprises an endless roller chain 10 mounted on sprocket wheels 14, 14a, between rails 11, spring-loaded catches 17 attached at intervals along the chain being engaged by the axles of a vehicle passing over the chain, the rotation thereby imparted to the sprocket wheel 14 being transmitted via a pulley 19 and belt 20 to a tachometer generator 21 to produce a voltage which is directly proportional to the velocity of the vehicle. This voltage is converted to D.C. and compared with a " velocity required " signal in a speed control panel the output of which is fed to an electropneumatic control valve in a retarder 13 controlling clamping members 12. Several chains &c. may be used in various sections of a retarder. A chain may also be used to drive a pump or generator to operate the thruster of a Saxby type retarder.
Patent GB-1107512-A (GB)
Title: Automatic adjuster for vehicle brakes
Inventor: EATON MAURICE BARRY
IPC: B61H15/00
Filed: 1964-10-08
Abstract: 1,107,512. Disc brakes; brake rigging. GIRLING Ltd. 8 Nov., 1965 [8 Oct., 1964], No. 41008/64. Heading F2E. A slack-adjuster for incorporation in a brake rigging, or in a disc brake assembly (Fig. 2, not shown), particularly for use on a rail vehicle, comprises a cylindrical body 1 secured to a clevis 2 or other means for connecting it to the brake blocks to be actuated, a nut 8 secured to or formed integrally with the body 1, a screw-threaded rod 3 engaging the nut and which is rotatable within a collar 6 secured to a clevis 7 or other means connecting it to a brake actuating member, and an arrangement for automatically rotating the rod 3 to effect adjustment which consists of a ratchet or other one-way clutch 14, 16 between a sleeve 9, rotatable on rod 3, and a wall 17 of a normally stationary but manually rotatable cylinder 18, and a pin 11 on the rod 3 engaging by way of a roller 12 with an inclined slot 13 in the sleeve 9 so that during operation of the brake the sleeve is rotated and adjusts the rod 3 via the one-way clutch. Manual adjustment of rod 3 can be effected by rotation of cylinder 18, a flange 26 of which is urged against a stop plate 27 by a spring 21 to frictionally retain its adjusted setting. A further spring 19 maintains the teeth 14, 16 of the one-way clutch in engagement. In the application to a floating-caliper disc brake (Fig. 2, not shown), the body (1) is received directly in an aperture in the pad to be actuated directly and is extended to surround both the sleeve (9) and a collar (7) which replaces the clevis 7 and is provided with trunnions extending out through slots in the body (1) to a lever (34) connected both to a motor diaphragm (37) and to a hand brake cable (38), the rod (3) being rotatable within the collar. The cylinder 18 is omitted, the modified wall member (17) being rotatable, against resistance provided by a friction washer, in the end of a portion of the brake housing which surrounds the body (1), this portion also providing the pivot for the lever (34).
Patent GB-1076708-A (GB)
Title: Device for regulating the power level of a nuclear reactor
Inventor: COSTES DIDIER
IPC: G21C7/14
Filed: 1965-09-27
Abstract: 1,076,708. Controlling reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 27. 1965 [Oct. 13, 1964], No. 41008/65. Addition to 1,064,382. Heading G6C. In a modification of the device of Specification 1,064,382 for regulating the power of a nuclear reactor, a neutron-absorbing element consisting of at least one neutron-absorbing chain is adapted to be manipulated within the vertical reactor channel, each chain comprising a first portion of neutron-absorbing material and a second portion of non-absorbing material, the portions extending end to end so that they act on the reactivity of the reactor according to which portion of the chain is situated in the reactor channel. A detachable container is mounted at the bottom of the channel to receive the first portion when withdrawn from the channel and the links of the second portion co-operate with a sprocket wheel placed at the top of the channel, along with the sprocket drive, in a second detachable container in which the entire neutron-absorbing element can be stored. The non-absorbing chain portion may be fabricated of aluminium or zirconium metal or alloys, or of a steel which does not contain boron. Boron steel may be used for the neutron-absorbing chain portion. The device is particularly advantageous in the case of reactors in which a coolant gas flows downwardly through the channels in the direction opposite to the movement of insertion of the neutron-absorbing elements since the resultant deformation of the neutron flux distribution and hence of the thermal flux distribution improves the cooling of the fuel elements located within the adjacent channels. The device can be used for emergency shut down in which case the neutron-absorbing chain portions are fabricated of steel having a high boron content and, in normal operation of the reactor, have their free ends located at the level of the top of the moderator stack. The length of chain between this level and the sprockets constitutes sufficient driving weight to cause the chains to drop into the channel when the electromagnetic clutch of the drive mechanism is no longer supplied with current. In this modification, it is no longer necessary to employ a detachable container at the bottom of the channel.
Patent GB-949602-A (GB)
Title: Improvements relating to the electro-deposition of brass
Inventor: HILL HORACE EDGAR
IPC: C25D3/58
Filed: 1958-11-27
Abstract: Bright brass is electrolytically deposited from a solution containing Cu and Zn ions, Ni and/or Co ions, a substance including an NH2 or NH4 radical and an alkyl aryl ethylene oxide condensation product, e.g. of the alkylated phenol-ethylene oxide condensation type of the general formula R-O-C2H4(-OC2H4)nOH where R is an aryl alkyl radical and n is a number depending on the length of the polyethylene glycol chain.  Possible Ni and Co salts are nickel sulphate, chloride, cyanide, potassium nickel cyanide and cobalt cyanide.  Electrolysis may be at 95-150  DEG F., 4.5-18 amps./sq. ft. and a pH of 8-13. During deposition the solution may be agitated by air or mechanically. A specific plating solution contains Cu, Zn, Na and Co cyanides, NH4OH, Rochelle salt and alkylated phenylpolyethylene glycol.  The electrodeposited brass may contain small quantities of Co.  Base metals to be plated may be Zn or Ni, "Mazak" (Trade Mark), or dull brass.  Cu andes may be used with replenishment of the Zn in solution as it becomes exhausted or, using brass anodes, the Cu and Zn concentrations are periodically ascertained and adjusted by adding Cu or Zn cyanide.  The electrodeposited brass may be mechanically polished.
Patent GB-908860-A (GB)
Title: Improvements in and relating to the production of boron nitride coatings
Inventor: POPPER PAUL
IPC: C23C16/34
Filed: 1959-12-05
Abstract: Boron nitride is produced by the thermal decomposition of B-trichloroborazole (B3N3H3-Cl3).  This method of production is used in a process for coating graphite, copper or nickel (see Group II).ALSO:A process for forming a boron nitride coating on a surface (e.g. graphite copper on nickel) is carrier out by the thermal decomposition of b -trichloroborazole in a flow system at atmospheric pressure or in a closed system.  The object to be coated is heated to above 800 DEG C., directly if it is a conductor or indirectly if not, and the b -trichloroborazole, with or without an oxygen carrier gas, is led in and decomposed on the surface of the object.  The stability of the coating may be increased by heat treatment.
Patent GB-1150013-A (GB)
Title: A Process for the Production of a Silver Halide Emulsion
IPC: G03C1/035
Filed: 1966-09-16
Abstract: 1,150,013. Emulsions making. FUJI SHASHIN FILM K. K. Sept. 16, 1966 [Sept. 22, 1965], No. 41435/66. Heading G2C. Photographic silver halide emulsions are obtained by preparing a silver iodide suspension containing a protective colloid and an amount of silver ions in excess over those required to form the silver iodide and adding said silver iodide suspension to an aqueous solution containing a bromide in an amount in excess of that required to precipitate the excess silver ions in said suspension to form a silver iodo-bromide emulsion. The protective colloid may be gelatine (active or inactive), polyvinylalcohol, a polyvinyl lactam or polyacrylamide. The emulsion may be chemically sensitized with sodium thiosulphate, auric chloride, aurochlouric acid and potassium isothiocyanate and may contain 4-hydroxy-6- methyl-1, 3, 3a, 7-tetra-azaindene as stabilizer.
Patent GB-1427052-A (GB)
Title: Electromagnetically operated hydraulic valve
IPC: F16K31/06
Filed: 1973-09-04
Abstract: 1427052 Valves HOERBIGER HYDRAULIK KG 4 Sept 1973 [4 Sept 1972] 41568/73 Heading F2V An electromagnetically-operated valve has an outlet bore 3 and an inlet bore 7 respectively opening into the opposite ends of an armature chamber into which an always open consumer bore 4 also opens. The armature having through flow bores (10) is moved between opposite ends of the chamber against the bias of springs 12 which act between pressure balancing pistons 13 and the armature. An emergency operating button 6 is provided. The armature may be turned through 180 degrees in which case additional biasing springs are placed in the bores (10) to maintain an overall bias to the right. Either bore 3 or bore 7 may be closed to convert the valve from 3-way to 2-way.
Patent GB-1405676-A (GB)
Title: Bicycle or motor bicycle brake arrangements
IPC: G11B/
Filed: 1972-09-07
Abstract: 1405676 Cycle brakes W R MATHAUSER 7 Sept 1972 [9 Sept 1971 13 April 1972] 41654/72 Heading B7E [Also in Division F2] An hydraulic cycle brake arrangement comprises a handle bar lever 12 which when moved to position 12<SP>1</SP> pressurizes fluid in a pair of master piston and cylinder devices 49, 49<SP>1</SP>, the fluid passing through lines 48, 48<SP>1</SP> to front and rear brake assemblies respectively, the line just prior to the assemblies forking with branches of the fork going to respective slave piston and cylinder devices 13, 14, one on each side of a wheel rim. The slave piston and cylinder devices each consist of a finned cylinder 50 containing a bellows 51 connected at one end to a piston 52 and communicating at its other end with a fluid blanch line at 45, the piston-rod 15 extending through the cylinder to connect, by a set screw 5, with a finned brake pad holder 19, the pad 22 being formed with circular projections 23 which engage the wheel rim. The cylinder 50 is retained on fork 4 by a split cylinder clamp 25 having a projection 33 which engages an aperture 39 in bracket 38 welded to the fork, a bolt 40 passing through the clamp and projection and engaging a handled nut 42 for retention on the bracket. Slight unscrewing of nut 42 allows the slave piston and cylinder to slide in the clamp towards and away from the wheel rim and also allows pivoting of the device and clamp away from the rim to enable removal of the wheel. The fluid line may pass from the lever 12 to the brake assemblies inside frame members of the cycle. In a modification, Fig. 7, the slave piston and cylinder devices 13, 14 are clamped in split cylinders 24, 25 and movable vertically in the lower ends of pivoted arms 63, 64, the upper ends of the arms being connected by a threaded bolt 69 and nut 71. The arms are pivoted to a yoke 67 connected by bolt 68 to the forks. In a further embodiment the devices 13, 14 are vertically movable in the slots in the free ends of an inverted U-shaped member connected by bolt 68 to the forks.
Patent GB-1100799-A (GB)
Title: Self ventilating cooking range
IPC: F24C15/20
Filed: 1966-09-19
Abstract: 1,100,799. Ventilating cooking stoves. JENNAIR CORPORATION. 19 Sept., 1966 [28 July, 1966], No. 41722/66. Headings F4V and F4W. Cooking vapours are removed from a cooking range by means of a grille 23 in the surface of the cooking range, below which there is a fan 28 which withdraws air through the grille. A filter 35 is employed for removing grease from the cooking vapours. The grille 23 comprises ribs which may project at different angles at each side of the grille in order to be effective with vapours from low levels on one side and higher levels on the other side (Fig. 3).
Patent GB-1315507-A (GB)
Title: Conveyor device
IPC: B65G43/08
Filed: 1970-09-01
Abstract: 1315507 Feeding to dryers CLAAS Gebr 1 Sept 1970 [5 Sept 1969] 41790/70 Heading F4G [Also in Division G1] In a conveyer apparatus for feeding green fodder to a drying drum 7 a pair of endless conveyers 4, 5 are arranged to deliver a continuous flow of fodder to an inclined endless conveyer 6. The conveyers 4, 5 have side walls (2), (3), Fig. 2 (not shown), to retain fodder fed thereto and the conveyer 5 is driven by a variable speed drive system (not shown) controlled by a pressure sensitive device 10 supporting the lower end of the conveyer 6 to thereby control the rate or which the fodder is conveyed. The conveyer 4 is also driven by a variable speed drive system and is normally driven at a faster rate than the conveyer 5 to ensure the latter conveyer is always supplied with fodder.
Patent GB-1155994-A (GB)
Title: A Control Device for Providing a Signal Responsive to a Variation in a Liquid Level.
IPC: G01F23/56
Filed: 1966-09-20
Abstract: 1,155,994. Fluid actuation of switches. CORY CORP. 20 Sept., 1966 [21 Oct., 1965], No. 41843/66. Heading H1N. A switch unit 11 having an actuating arm 12 is pivoted at 15 and balanced by weight 18. Float 24 acts on arm 12 by means of adjustably positioned collars 26, 27 such that the switch unit is pivoted without operation of the switch until it abuts an adjustable cam 22 (for low liquid levels) or adjustable screw 20 abuts a fixed pin 21 (for high liquid levels).
Patent GB-1484528-A (GB)
Title: Disconnectable steering system for industrial truck
IPC: B66F9/075
Filed: 1975-10-15
Abstract: 1484528 Vehicle steering systems ALLISCHALMERS CORP 15 Oct 1975 [29 Oct 1974] 42258/75 Heading B7H An industrial fork lift truck comprises an operator's station 61 movably supported on a frame 12 for movement between a lowered position and raised working positions, the operator's station being provided with a steering control member 63 which is operable, when the operator's station is in its lowered position, to effect steering movements of a drive wheel 17 through means including a socket 72, Fig. 3, drivingly engaging a projection member 78, the socket 72 being automatically disengaged from the projection member 78 when the operator's station is raised a predetermined distance from the lowered position. As illustrated, the socket 72 is slidably supported by a square-section portion 71 of a rotatable shaft 68 connected to a shaft 64 carrying the control member 63 by a chain 69 co-operating with sprockets 66, 67. The projection member 78 is provided on a rotatable shaft 79 carrying a spool 81. A cable 86 is wound around the spool 81 and around a spool 87, Figs. 1 and 2, arranged to actuate a power steering motor 88. The power steering motor 88 has an output shaft 96 arranged to effect steering movements of the drive wheel 17 through sprockets 97, 98 and a chain 99. The drive wheel 17 is supported in a drive unit 16 including an electric motor 15 supplied by a battery 14. The operator's station 61 is provided on a carriage 37 supported for vertical  movement by rollers 38 engaging a vertical mast 32. The carriage 37 carries a loading structure 53 which is movable transversely of the truck and includes load supporting forks 54. The forks 54 are pivotally mounted about a horizontal axis 56. The truck is provided with support wheels 19, 21, 22, 23, 24 in addition to the drive wheel 17. The truck is intended for use in the aisle between racks 60 and comprises rollers 101 for guiding engagement with the racks.
Patent GB-1222064-A (GB)
Title: Improvements in or relating to conveyor structures
Inventor: SULLIVAN ARTHUR
IPC: B65G21/06
Filed: 1967-09-18
Abstract: 1,222,064. Endless conveyers. DISTINGTON ENG. CO. Ltd. 16 Oct., 1968 [18 Sept., 1967], No. 42386/67. Heading B8A. [Also in Division E2] A stand for a belt conveyer comprises a U-shaped member 10 whose upwardly-extending arms 11 are received in leg members 12, the arms being secured by locking pins 13 which pass through holes 14 in the arms and legs 11, 12. When inserting a pin, an arm 23 is passed through the aligned holes in the arms and legs and a tail portion 22 is lifted clear of the arms and legs, Fig. 4B. The pin is then pivoted downwardly so that an arm portion 21 abuts the arm 11 and the tail portion 22 overlaps the side of the leg 12, Fig. 5B, thereby preventing extraction of the pin until it is pivoted upwardly sufficient to lift the tail 22 from its overlapped position. Brackets 16 receive the rope of a rope side-frame but the brackets may be replaced by sockets for rigid side-frame members. Lugs 17 receive a roller for the return run of the conveyer belt.
Patent GB-1038399-A (GB)
Title: Improvements in or relating to devices for feeding paper sheets
Inventor: JURNY JOSEF
IPC: B65H3/08
Filed: 1964-10-19
Abstract: 1,038,399. Feeding sheets. ADAMOVSKE STROJIRNY, NARODNI PODNIK. Oct. 19, 1964, No. 42490/64. Heading B6B. Sheets are separated from the top of a pile and fed to forwarding rollers 14, 15 by suction nozzles 8 fixed to a suction tube 7 secured to the end of the longer arms 4<SP>11</SP> of two-armed levers 4 pivoted at 3 to levers 1 oscillated about a shaft 2 by a cam 11, the shorter arms 4<SP>1</SP> of the levers 4 having attached thereto a spring 17 and carrying a roller 5 movable along a fixed guide surface 9. The combined effect of the cam 11 and surface 9 is to cause the nozzles 8 to bend up the edge of the top sheet and then move the sheet forward horizontally into the bite of the rollers 14, 15.
Patent GB-938279-A (GB)
Title: Improvements in or relating to shears with exchangeable blades
IPC: B23D35/00
Filed: 1960-12-12
Abstract: 938,279. Shearing. SCHLOEMANN A.G. Dec. 12, 1960 [Dec. 10, 1959; Jan. 7, 1960], No. 42696/60. Class 83 (4). In a shears with exchangeable blades 12, 17, these may be removed from the shears attached to angle-plates 11, 16. The shears may comprise a stationary upper blade 12 and a lower blade 17 on a beam 2 swung about a pivot 9 by a connecting-rod 3. A crank 5 for the rod 3 is driven through gears 7, 8 by a motor 6, and the work 22 is held down by a plunger 20 biased by a spring 21. The blades are bolted at 14, 14a to the angle plates, and the assembled units are fixed by bolts 13 to the blade supports 10, 15. The bolts 13 pass through large openings 29 in the supports and through straps. 25 which may be moved longitudinally to align openings 27 with nuts 13a on the bolts 13 so that the bolts may be withdrawn and the blade units released without removal of the nuts. Locating pins 26 on the angle-plates engage pockets 15b in the blade supports. Handling of the units is facilitated by lugs 16a. The blade units may be dismounted from a shear with a stationary lower blade support 33 and a movable upper support 32 by means of a table 42 having pins 49 in pockets 50 in the shear-frame and supporting a slide 43. Opposite a counterweight on the slide is a pedestal 44 carrying screw-threaded pins 48 that may be turned to engage pockets 38 in the angle-plate 35 and support the unit during withdrawal of the slide. The blades are re-ground in the angle-plates in which they may then be repositioned by spacers.