baber/WOPTO huggingface dataset:
Patent GB-1116342-A (GB)
Title: Improvements in or relating to drive-reversing mechanisms
Inventor: SOMERVELL ROLAND WILLIAM GORDO
IPC: F16H25/12
Filed: 1963-09-03
Abstract: 1,116,342. Magnetic wire recorders. S. DAVALL & SONS Ltd. 3 Dec., 1964 [3 Sept., 1963; 4 Nov., 1963; 4 June, 1964], Nos. 34738/63, 43471/63 and 23262/64. Heading G5R. [Also in Division F2] In a magnetic wire recorder, a carriage 17 taking wire 12 from reel 13 and laying it on reel 14 is progressed along shaft 21 by means of a peg (32a) and one or other of two quarter nuts (37a, 38a) engaging one or other of two sets of grooves (see Division F2). The quarter-nuts are mounted on a bridge member (111) and held, by toggle action in contact with one or other set of grooves (33, 34). At the end of the shaft, the operative quarter-nut is lifted from its groove and due to the action of spring 129 reversal takes place and the carriage proceeds in the opposite direction with the other quarter-nut operative. The wire passes round a system of pulleys and rods as described in Specification 1,116,344. A drive unit, Fig. 4 (not shown), is coupled over members 147, 148 to drive the reels 13, 14 and shaft 21. To prevent the wire coming off the reels when the motor unit is disengaged, a friction disc 171, Fig. 21, is spring- urged into contact with discs 176, 177 but, pushed away therefrom by the drive unit pressing on shaft 178.
Patent GB-1490192-A (GB)
Title: Linearisation circuitry
IPC: G06G7/30
Filed: 1974-10-18
Abstract: 1490192 Non-linear amplifier circuits NORMALAIR-GARRETT (HOLDINGS) Ltd 18 Oct 1974 [20 July 1973] 34771/73 Heading G4G A non-linear amplifier circuit comprises an input amplifier A1 and a break-point amplifier A3, the latter having a negative feedback loop including a break-point transistor T1 and a protection diode D2, the inverting inputs of amplifiers A1 and A3 being connected by a resistance R3 and a reference voltage V REF  being applied to the non-inverting input of amplifier A3 to set the break-point level. Further breakpoint circuits can be provided as indicated in chain lines and these can be connected to increase or decrease the overall gain of the circuit at various input levels. More practical circuits using the same principle as in Fig. 3 are described.
Patent GB-191602-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B9/26
Filed: 1921-12-29
Abstract: 191,602. Beisel, W. J. Dec. 29, 1921. Spring wheels.-A series of curved leaf springs 10 have their inner ends secured in radial hubslots, the leaves at the outer ends of the springs being stepped and the outermost leaf being bolted to an inverted channel-rim 14, Fig. 1. The bolts 18 also serve to secure an outer rim 17 on which a detachable tyre-carrying rim may be secured by clamps 35 and bolts 36. The inner ends of the spokes are spaced by two-part wedge blocks 25 which are engaged by pins 26 passing through the springs, and hub-bolts 30. Fig. 3 shows a modification in which the outer leaf 13 of the springs is slotted to form two lugs 41, 42 bearing against the rim 14, and an intermediate lug coiled around a transverse bolt 40 ; or the end of the leaf 13 may be formed with lugs bolted to the flange of the rim 14. In the modification shown in Fig. 5, the inner rim is formed with webs 45 (for attachment to the outer rim 17) and with a narrow channel 46 to which the flanged end 49 of the spring is secured by bolts 50. In a further modification, oppositely-curved springs may be arranged side by side in the same wheel.
Patent GB-1132451-A (GB)
Title: Improved equipment for underwater swimmers
IPC: B63C11/14
Filed: 1959-10-15
Abstract: 1,132,451. Respiratory masks. K. R. TUSAN and J. BUCKINGHAM. 5 Oct., 1960 [15 Oct., 1959], No. 35027/59. Heading AST. Within the face piece 1 of underwater swimming equipment there is provided means giving visual indication to the swimmer of depth below the surface and/or of compass bearing. The depth gauge 2 may comprise a number of variously coloured lights each light being switched on by an associated pressure sensitive depth of water. The compass 3 is enclosed in a transparent plastic body incorporating a lens and a chronometer (not shown) may also be provided within the face piece, the lights providing a source of illumination to permit reading the compass and chronometer.
Patent GB-643269-A (GB)
Title: Apparatus for heating and controlling the temperature in a continuously operating digester
IPC: D21C7/14
Filed: 1945-12-28
Abstract: 643,269. Digesters. FAIRWEATHER, H. G. C. (Aktiebolaget Kamyr). Dec. 28, 1945, No. 35096. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 28, 1945.] [Class 64(i)] A continuously operating digester with main inlet and outlet at opposite ends has in its walls inlets 4, 6 and substantially opposite outlets 1, 5 each covered by a sieve, the-inlets and outlets communicating with external pipes connected to a pump 2, heat exchanger 3 and a valve 7 by which any of the pipes can be connected to the heat exchanger, so that a transverse flow of heated or cooled liquid, variable in direction, can be produced in the digester. Sulphur dioxide may be removed from, or acid, alkali, or sulphur dioxide may be added to, the withdrawn liquid before its return to the digester.
Patent GB-348665-A (GB)
Title: Improvements in processes of treating iron ores
IPC: C22B1/08
Filed: 1929-11-18
Abstract: In a modification of the parent Specification for chlorinating ores and materials containing iron, especially sulphide ores, the ferrous chloride obtained in the first stage is converted in the second stage by means of preheated air in admixture with a chlorinating agent, and with or without producer gas, into ferric oxide and inert gas with ferric chloride vapours, or with ferric chloride vapours and chlorine, or with chlorine.  The gaseous mixture, after conversion of the ferric chloride, if present, into ferric oxide and chlorine, is divided into a major sub-flow--for treatment of fresh charges, and a minor sub-flow--for use in the above-mentioned second stage.  In carrying out the invention, the ore is chlorinated by the major sub-flow, or, at the commencement of the process, by, for instance, ferric chloride vapours, chlorine, sulphur chloride or a mixture thereof, and the sulphur vapours and inert gases led to a condenser. Ferrous chloride formed is oxidized as above with preheated air and a chlorinating agent, or at the commencement of the process, with preheated air with or without producer gas, and ferric oxide, gangue, and chlorides such as of zinc, lead, and copper are removed.  Ferric chloride evolved from the second stage is oxidized by a mixture of air and producer gas, and the chlorine formed is divided into a major and minor sub-flow for use as above.  If desired, the ferric chloride vapours from the second stage may be condensed and resublimed prior to oxidation.
Patent GB-487793-A (GB)
Title: Improvements relating to regulator valve apparatus for locomotives
IPC: F01B25/00
Filed: 1936-12-24
Abstract: 487,793. Interconnected valves. SUPERHEATER CO., Ltd. (Superheater Co.) Dec. 24, 1936, No. 35383. [Class 135] In regulator-valve apparatus for locomotives of the kind having a housing with upper, middle, and lowest chambers 12, 13, 14, and a number of small poppet valves actuated by a rockshaft in the lowest chamber, the valves 17 are staggered and arranged in two rows with mutually inclined stems 19, the planes of which intersect in the lowest chamber. Cover plates 25 are formed with guide pockets 26 for stem extensions 18. A similar cover may be provided for the pilot valve stem. The wall W of the housing has portions in two planes at an angle, each of which has a row of openings closed by the plates 25. Specifications 248,239, 296,513, [both in Class 123 (iii)], 351,088, and 382,642 are referred to.
Patent GB-934063-A (GB)
Title: Improvements in or relating to close-up attachments for twin-lens photographic cameras
IPC: G03B17/12
Filed: 1960-10-17
Abstract: 934,063. Close-up attachments for twin-lens cameras. FRANKE & HEIDECKE G.m.b.H., [trading as ROLLEI-WERKE FRANKE & HEIDECKE]. Oct. 17, 1960 [Jan. 13, 1960], No. 35485/60. Class 98 (1). A supplementary optical component holding device for close-up exposures with a twin-lens mirror reflex photographic camera of the kind comprising an exposure chamber and a mirror reflex focusing view-finder chamber arranged above the exposure chamber, the front and rear walls of the light hood of the view-finder ground glass screen being formed as the front and rear components of a direct vision view-finder, is characterized by the frame carrying the supplementary components having connected thereto a separate direct vision view-finder frame of which the upper boundary is offset from the upper edge of the front component of the direct vision view-finder so as to compensate for the mean parallax of the upper view-finder boundary in the associated close-up focusing range when said device is fitted to the camera. As shown, a holder 8 for close-up components 6 and 7 which is releasably attachable to bayonet lugs 5 and 4 has a frame 10 hinged thereto, the upper limb 11 of which extends into and forms the upper boundary of the image field of the direct vision view-finder of the camera. In modifications, the frame 8 may be hinged to a second frame which is releasably attachable to the bayonet lugs 5, 4, the frame 10 may be made of wire and comprise three sides only (Fig. 2), and the frame 10 may be adjustably secured to the frame 8 by screws.
Patent GB-522376-A (GB)
Title: Improved interlocking means for the feed and rapid power traverse motions of turning lathes or like machine tools
IPC: B23Q5/54
Filed: 1938-12-07
Abstract: 522,376. Turning. CHURCHILL-REDMAN, Ltd.. and LEES, F. C. Dec, 7, 1938, No. 35619. [Class 83 (iii)] The feed and rapid power traverse motions of lathes &c. are interlocked. The powerfeed is engaged by lifting a shaft b on rotation by a handle a due to the action of cams a2, c. This is only possible when the shaft g controlling the rapid traverse is in neutral and permitting the arc b<SP>1</SP> to cam a plunger e into a bore g<SP>1</SP>. When the feed is engaged the plunger e prevents the shaft g from being rotated to engage the rapid traverse.
Patent GB-1307770-A (GB)
Title: Controlled reel for paying-off stock
IPC: B21C1/02
Filed: 1970-07-23
Abstract: 1307770 Automatic control of reeling FENN MFG CO 23 July 1970 [24 July 1969] 35673/70 Heading G3R In a system for automatically controlling tension in material being unwound from a reel driven by an electric motor, variation in the size of a loop of the material causes rotation of a sensing member, which when above a predetermined speed, varies speed to correct the changes in tension. In Fig. 2, a coil of tubular stock to be reduced in diameter and/or wall thickness, supported on a turn-table 14, is unwound by a reel 23 driven by a D.C. shunt motor supplied from anA.C. motorgenerator (not shown) and passed through a straightener 20, 22 to a drawing die 18. The stock is drawn through the die by a block 24 on which a few turns are held by members 32 pressing against the block, the surplus being shed downwards to coil up on a turn-table 26. Block 24 is driven by another electric motor (not shown) the speed of which is maintained constant at threading or running speed by tachometer generator feedback. An adjustable resistor in the field circuit of the motor driving reel 23 is set so that feed speed is insufficient and the loop of stock shortens until it engages and rotates a rotor 66. At a predetermined speed rotor 66 closes a switch to shortcircuit another adjustable resistor in the field circuit of the motor driving reel 23 so that the feed speed is then too great and this action occurs intermittently to maintain a correct average feed speed. Eddy-current braking slows rotor 66 when it is not engaging the stock. Jaws 30 are provided for gripping the end of the stock during the winding of the first few turns after starting.
Patent GB-755096-A (GB)
Title: Remotely-controlled evacuating device for hydraulic jack
IPC: F15B15/14
Filed: 1954-12-10
Abstract: 755,096. Hydraulic actuation of switches. GRATZMULLER, J. L. Dec. 10, 1954 [Dec. 24, 1953; July 30, 1954], No. 35772/54. Class 38(5) In a single-acting hydraulic jack which is actuated by liquid pressure against a counteracting force, means are provided giving a discharge rate of liquid greater than the feeding rate so that the return stroke of the jack is quicker than the forward stroke. The jack may be used to set a circuit breaker into contact-making position against the action of elastic means. A jack comprises a cylinder 3 and a, piston 4. a spring 5 ensuring the return stroke. For the forward stroke liquid from an accumulator 6 passes through ducts 8, 10 to the upper end of a cylinder 12 containing a piston 13, and through a passage 20 and past ball valve 21 in the piston to the lower end of the cylinder, thence through a port 14 to the jack cylinder. A spring 27 urges a valve 18 integral with the piston 13 on to its seat to close an outlet 15a. If a valve 7 is turned to connect the duct 8 to exhaust, piston 13 is raised, removing the valve 18 from its seat and enabling the liquid in the jack to pass to exhaust. The spring 27 may be replaced by a spring facilitating opening of the valve 18, in which case the spring urging the ball valve 21 to its closed position is strong enough to ensure sufficient differential pressure to hold valve 18 on to its seat.
Patent GB-1478906-A (GB)
Title: Process for the production of synthesis gas cracked hydrocarbon and calcined coal
IPC: C07C4/02
Filed: 1974-08-14
Abstract: 1478906 Production of synthesis gases MARATHON OIL CO 14 Aug 1974 [23 Aug 1973] 35783/74 Heading C5E In a process for the calcination of medium or high volatile coal, having greater than 25% volatiles, in which a bed of coal is moved in a generally downward direction through a calciner having a combustion zone, a calcination zone and a heat soaking zone, the combustion zone is maintained at an average temperature of 2000- 2500‹ F. by introduction of an oxidizing gas and at least a portion of the gases produced in the combustion zone, which comprise N 2 , Ar, CO 2  and H 2 O, are recovered and passed through the bed of hot coal below the combustion zone and are recovered from the calciner as a product synthesis gas stream. Steam and/or a hydrocarbon may also be introduced into the bed of hot coal together with the combustion gases. In the retort calciner shown in Fig. 1, oxidant is fed into the bed of coal through header 10 and a combustion zone 12 is formed. Combustion gases are withdrawn through header 13 and reintroduced, together with steam and/or hydrocarbon, through header 16 into the bed of coal. Synthesis gases and cracked hydrocarbons (if hydrocarbons are fed in through 16) are withdrawn through conduit 22 and calcined coal leaves through valve 28. Fig. 3 shows a rotary hearth calciner in which oxidant enters at 33 to form a combustion zone 42 where the coal is calcined. Combustion gases and unburned volatile matter are drawn through the coal bed 43 in the soaking pit 46. Hydrocarbons and/or steam may be introduced through pipes 48, 49. Product gases are withdrawn through conduit 52.
Patent GB-808541-A (GB)
Title: Circuit arrangement for the transmission of signals in shaft winding systems, from and to the cage
IPC: H04B3/60
Filed: 1956-11-23
Abstract: 808,541. Inductive telegraphy. STANDARD TELEPHONES & CABLES, Ltd. Nov. 23, 1956 [Nov. 24, 1955], No. 35880/56. Class 40(5). In an inductive signalling system for communication between a fixed station and a moving lift cage, one rope fastening on the cage is insulated, the other rope forming with it and the cage transmitter-receiver a closed circuit which is inductively coupled to a second fixed transmitter-receiver. In the embodiment shown, the circuit comprising carrying rope 2 and balance rope 3 is closed through the induction coils 1 of the cage telephone sets 6. The ropes are inductively coupled to the fixed station 10, 12, 13 through the window of an iron cored transformer 11. A further embodiment, not shown, employs a four-wire termination or separating filter for duplex telephony.
Patent GB-1166429-A (GB)
Title: Improvements in or relating to Shaped Carbon or Graphite Bodies
IPC: H05B7/085
Filed: 1968-07-26
Abstract: 1,166,429. Crucibles. SIGRI ELEKTROGRAPHIT G.m.b.H. 26 July, 1968 [26 July, 1967 (2)], No. 35916/68. Heading F4B. [Also in Divisions C1, C7 and H5] A carbon or graphite body such as an arc electrode or crucible is coated, e.g. by flame spraying with a coating comprising a first layer consisting of by weight 90-100% Si and a total of 0-10% of one or more of Na, Mg, Ca, B, Al, Ti, Zr, Mn, Fe, C, N 2 , P and O 2  and a second surface layer consisting of 85-100% Al and a total of 0-15% of one or more of Na, Mg, B, Si, P, O 2 , Cu, Zn, P6, Ti, Zr, Cr, Mn, Fe, Co and Ni. The first layer is 0À01-0À15 mm. thick and the surface layer 0À05-0À6 mm. thick. A sealing layer of an alkali metal borate and/or phosphate and/or silicate may also be applied. The coating may be fused by heating in argon arc or a plasma burner. The following alloys are disclosed: (1) 98À5% Si, 0À8% Fe, 0À5% Al, 0À2% Ca. (2) 95% Si, 3% Ti, 1À5% Fe, 0À5% Al. (3) 99% Al, 0À7% Mg, 0À3% Si. (4) 98À2% Al, 1À5% Mg, 0À3% Mn.
Patent GB-397000-A (GB)
Title: Means for regulating the voltage supplied to lamps, motors, or other current consuming apparatus which are supplied with alternating or pulsating direct current
IPC: G05F3/04
Filed: 1932-12-19
Abstract: 397,000. Electric supply systems ; condensers. ISEUS, A., Fristad, and OLSSON, O. H. T., Boras, both in Sweden. Dec. 19, 1932, No. 35982. Convention date, Dec. 1. [Classes 38 (ii) and 38 (iv).] In an arrangement foi supplying an alternating or a pulsating direct current tc lamps, motors, heating elements or other consuming apparatus 5 through a seriesconnected condenser compris. ing a number of condense] units 7 .. 10 arranged ir parallel and combined witl a change-over device for placing one or more of the units in circuit, such units are provided with a common solid dielectric layer 11, e.g. of impregnated paper, and with separate leads connected to the contacts 17 .. 20 respectively of the change-over device. The latter comprises a segment 13 carried by an arm 15 rotatable by a handle 16. The condenser units may be shunted through an additional contact 21 and a lead 22.
Patent GB-338735-A (GB)
Title: Improvements in vessels in which a pressure exists or is generated and especially inpots for the quick cooking of foods
IPC: A47J27/092
Filed: 1929-11-25
Abstract: 338,735. Moneta, G., and Bei, D. de. Nov. 23, 1928, [Convention date]. Pressure gauges.-In a pressure cooker, Fig. 1, the securing screw 5 is operated by means of wings 19, and when pressure exists within the vessel the operation of the screw is prevented by a detent 18 which is pushed upward by a piston 17 into the path of the wings 19. The member 18 provides an optical indication of the pressure within the vessel, or it may actuate another indicating member. In a modification. Fig. 3, the piston 14 acts on the arm 18<1> of a lever pivoted at 20 on the cross bar 1 and the other arm 18 of the lever is deflected into the path of the wings 19<1>. In a modified form, Fig. 9, of the indicator and detent for preventing premature opening, a spindle 26 carrying a conical part 14 and head 16, passes through a screwed plug 12. A surrounding ring 29 is provided with a handle 30 and with a pin 31 engaging a helical groove 25 in the plug 12. The ring 29 is rotated to its highest position when closing the vessel, and if pressure is to be tested, the ring 29 is rotated to its lowest position, when the pressure maintains the spindle 26 in its raised position to lock the screw 5, Fig. 1, and to provide an optical indication.
Patent GB-171915-A (GB)
Title: Improvements in and relating to wheeled toys provided with propelling and steering means
IPC: B62M1/14
Filed: 1920-12-23
Abstract: 171,915. McCarthy, J. H., and Murphy, R. Dec. 23, 1920. Combined hand and foot driving-mechanism; combined hand driving and steering mechanism; hand driving-mechanism.-A toy comprises a seat 1, a front wheel 3, and rear wheels 7 mounted on a crank-shaft 6 operated by a bar 10 from a lever 8, which is provided at the lower end with a foot-bar and at the upper end with a handlebar 13, so that it may be rocked by the hands and feet. The handle-bar is mounted on a shaft 14 carrying a drum 15, and a cable 16 passing round and secured to the drum and the front-wheel support 4 transmits the steering movements of the handle-bar. A bar 18 is provided to enable the toy to be steered by the feet when desired.
Patent GB-1109541-A (GB)
Title: Improvements in and relating to control devices for metallizing spray guns
IPC: B05B12/08
Filed: 1965-08-24
Abstract: 1,109,541. Controlling metallizing spray guns. COMMISSARIAT A L'ENERGIE ATOMIQUE. 24 Aug., 1965 [9 Sept., 1964], No. 36392/65. Headings F4F and F4T. A metallizing spray gun 8 supplied with combustible gas, e.g. acetylene, comburent gas, e.g. oxygen and projecting gas, e.g. compressed air through conduits 14, 15 and 16 has its ignition control by a piston and cylinder arrangement W. When the blowpipe is to be ignited an electric switch 52 is temporarily closed causing an electromagnetic valve V to open and allow the compressed air from conduit 16 to be admitted to an exchanger P. The pressure of the gas is transferred to an oil in the exchanger and this pressure acts on the piston 23 through a throttle 20. Since the piston is racked as it rises and engages gearwheels 27 and 32 it rotates cammed spindles 28 and 33. Spindle 28 initially partially opens combustible gas valve 29 simultaneously as spindle 33 closes switch 37 resulting in a spark between electrodes 9 and 10 which ignites the blowpipe. Upon further rotation of the spindles the valves 29, 30 and 31 are fully opened and also switches 38 and 39 closed which form a holding circuit for the valve V and cause shield 13 to be withdrawn from in front of the blowpipe and also operate a motor M 1  which rotates knurled wheels 6 and 7 to feed rods into the rear of the blowpipe. A photo-cell 41 is adapted to close the electromagnetic valve V after a time delay provided by a relay 43 if the flame is abnormal.
Patent GB-962106-A (GB)
Title: Reinforced plastic tapes
Inventor: SHARPLES EDWIN HOLROYD
IPC: D04H3/12
Filed: 1959-10-30
Abstract: A reinforced plastic tape comprises a tape of gelled plasticised polyvinyl chloride having a longitudinally embedded ribbon of substantially parallel continuous filaments of which each filament is coated with the plasticised polyvinyl chloride, (PVC), the weight of the latter being at least equal to that of the filaments.  Specified filaments are viscose rayon, nylon and polyester.  The tape may be manufactured by running a ribbon of substantially parallel continuous filaments through a channel supplied with a dispersion of polyvinyl chloride in a liquid plasticiser, then through a pair of mangle rollers to control the quantity of adherent dispersion and finally through a heated zone to gel the dispersion.  The tapes may be cured by heating, or may be woven to form a fabric of which the warp and weft have no twist, and then heated to melt and cure the PVC to form a continuous sheet or one having perforations corresponding to interstices in the fabric.  The gelled sheets may be impregnated with plasticized PVC before curing.  Alternatively, two or more tapes may be twisted together to form a thread from which a fabric may be woven with or without other threads.  Plasticizers mentioned are phthalate and phosphate esters, e.g. dioctyl phthalate and tritolyl phosphate. Three specific examples are given.