baber/WOPTO huggingface dataset:
Patent GB-1337361-A (GB)
Title: Photoflash system
IPC: G03B15/04
Filed: 1972-01-27
Abstract: 1337361 Photographic flash control HONEYWELL Inc 27 Jan 1972 [28 Jan 1971] 3803/72 Heading G2A A photo-flash system has a flash tube VI, sensing LASCRI and integrating C3 means for generating a signal when the quantity of light reflected from a scene reaches a predetermined value, and means V2 for ending the flash thereupon, and including a bi-stable annuciator circuit comprising a visible indicator L1 and a switching device SCRI connected in series, the switching device operating the indicator in response to said signal. The lighting of the indicator thus indicates that a correct exposure has been given, e.g. that the total available light output from the flash tube has been more than adequate for a correct exposure. The switching device is preferably a thyristor as shown, the gate of which is connected via capacitor C6 to transformer T2 so that the thyristor is switched upon firing of quench tube V2. Alternatively, the light output produced in V2 when fired may be used to switch a further light activated thyristor which replaces SCRI, and the annunciator circuit may be electrically separate from the photo-flash circuit.
Patent GB-624190-A (GB)
Title: Improvements in and relating to compressed air picks
IPC: B23Q11/08
Filed: 1947-02-10
Abstract: 624,190. Compressed air picks. ATELIERS DE CONSTRUCTIONS MECANIQUES ARMAND COLINET SOC. ANON. Feb. 10, 1947, Nos. 3850 and 3851. Convention dates. June 21, 1946 and Aug. 13, 1946. '[Class 124] In a compressed air pick, water under pressure is fed into a space 11 surrounding the body 1 of the pick and open on the side nearer the tool 3 so that the water leaving the space is projected into the neighbourhood of the tool. In the form shown, water from an inlet 7 passes through a passage 8 into an annular chamber 9 and through radial or inclined holes 10, 13, respectively. into the space 11. The latter is formed by a cylindrical casing 14, which may be separate from or integral with either the pick body 1 or the handle 5, and which is centred by abutments 17 and has a bell mouth 16. The kinetic energy of the water leaving the space 11 is increased by the pressure of the compressed air, preferably the exhaust air from the control mechanism 2, which may enter the space 11 through holes 12 up stream of the holes 10, 13. The admission of compressed air and water is controlled simultaneously by a trigger 6 through the intermediary of rods 22, 24, valves or balls 18, 19, and springs 20, 21. The supply of water is controlled by a needle 25. Two other forms of pick described and illustrated in the Specification each include a deformable airtight partition between the compressed air and pressure water circuits, and a modified control of the water supply.
Patent GB-346503-A (GB)
Title: Improvements in means for regulating internal combustion engines for aircraft
IPC: F02D9/00
Filed: 1930-02-05
Abstract: 346,503. Regulating; spray carburetters. ELLOR, J. E., 149, Burton Road, Derby. Feb. 5, 1930, No. 3878. [Classes 7 (iii) and 7 (vi).] In altitude controls for aircraft engines provided with supercharging-blowers, in which full opening of the throttle at ground level is prevented by an aneroid device acting through relay mechanism, for example as described in Specification 346,892, means are provided for preventing damage to the aneroid device by backfires, or by excessive vacuum, as when the engine is idling. An aneroid device b<2> subjected to the pressure in the inlet manifold a4 actuates a valve d which connects one side of a relay piston b<7> to the blower intake a<1>, and the other side to the blower outlet a<4>, thereby actuating a cam c acting on the pilot's throttle control h, h<1>. Damage due to backfires is prevented by the provision of small holes d<3>, d<4> in the communication between the aneroid chamber bl and the pipe g connected to the inlet manifold. Damage due to excessive vacuum when the engine is idling is prevented by a valve j<1> connected to the throttle by a rod j<3>, so as to open the aneroid chamber to atmosphere at j when the throttle approaches the closed position. The opening j also serves to drain away liquid fuel.
Patent GB-276565-A (GB)
Title: Improvements in or relating to water heating systems
IPC: F24D3/08
Filed: 1927-02-12
Abstract: 276,565. Comery, B., and Duckering, G. F. Feb. 12, 1927. No Patent granted (Sealing fee not paid). Heating water: compound boilers.-A hot water sytem comprises an L-sectioned boiler having compartments 1a, 1b which supply independent circuits 3, 9 for domestic supply and heating systems respectively. The domestic supply circuit is provided with a cistern 4 which is supplied with water from a tank 7; this tank also supplies the boiler compartment 1b.
Patent GB-210985-A (GB)
Title: Improvements in towel cabinets
IPC: A47K10/28
Filed: 1923-02-09
Abstract: 210,985. Bigelow, A. P. Feb. 9, 1923. Roll holders and cases.-In a towel cabinet, a length of towelling is arranged between two rollers connected by gearing in such manner that as an unused length of towelling is unwound from one roller a used length is wound on to the other roller, a yielding connection being provided between one gear and roller so that an extra length of towelling may be drawn out independently of the effective diameters of the respective rolls. Rollers 2, 3, carrying a length of towelling 4, are detachably held in rotary sleeves or stubs mounted in the end walls of a cabinet or casing 1 and are connected by a chain 9 passing round gear wheels 7, 8, the " used " roller 3 preferably rotating at a slightly higher speed than the " unused " roller 2. A friction coupling 11 between one gear wheel and roller allows an extra length of towelling to be drawn out when required. Winding may be effected by a handle 10 and a detent may engage one of the gears to prevent backward movement. Instead of the friction coupling 11, the gear wheel may be connected to one roller through friction wheels.
Patent GB-115059-A (GB)
Title: Improvements in Apparatus for "Backing Off" Boring Tools or other Cutting Tools.
Inventor: MARSHALL THOMAS
Filed: 1917-03-20
Abstract: 115,059. Marshall, T., and Leigh, H. March 20, 1917. Vices.-In a vice for use in a shaping machine when backing-off boring &c. cutters for making shells &c., the blanks G are held in the correct position between oblique and undercut surfaces fnrmed either on the jaws A, B or on removable pieces E, F formed with flanges or with projections engaging the jaws A, B. The movable jaw B is adjusted by two parallel screws C and is clamped by a nut D. The ends and one half of the tops of the blanks are first shaped, and the blank is then turned round horizontally and the other half of the tops backed-off. In making lefthand cutters the blanks are inverted in the vice while the ends are backed-off. When the oblique surfaces are formed on the jaws A, B removable pieces similar to the pieces E, F and having square faces are provided for use with ordinary work.
Patent GB-197645-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B31/02
Filed: 1923-02-10
Abstract: 197,645. Witkowitzer Bergbau-und- Eisenhiitten-Gewerkschaft, and Hein, R. May 11, 1922, [Convention date]. Addition to 190,719. Rolling.-In a rolling mill of the type described in the parent Specification the middle roll M is arranged in bearings L<3>, L<4> secured in the roll stands while the bearing casings of the upper roll O and the lower roll U are connected rigidly together by bars e so that these rolls and their bearings are movable as units, the axial movement for pass adjustment being thus effected without disturbing the adjustment of the bearings. In the case of a two-high mill the lower roll bearings may be fixed and the upper roll be movable axially with its bearings.
Patent GB-229332-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1925-02-13
Abstract: 229,332. Siemens - Schuckertwerke Ges. Feb. 14, 1924, [Convention date]. Refrigerating, absorption systems for. -In a continuouscycle system a circulation of the gas through the evaporator and absorber, to facilitate absorption, is effected by introducing into the gas conduits or spaces at low pressure some of the gas from a part of the system at a higher pressure. A generator 1 heated electrically is connected to a separating chamber 2 from which gas passes through a pipe 6 to a condenser 7, while the weak liquor is lifted through a pipe 3 into the absorber 4. The condenser communicates with the evaporator 9 by a pipe 8, and the evaporator and absorber are in communication through a flow pipe 10 and a pipe 11. The evaporator and absorber are at a lower pressure than the generator and condenser, but may contain an added neutral gas such as air whereby the pressure difference in the system may be reduced, with a consequent shortening of the liquid columns in the upright connecting pipes 3, 5, 8. The high pressure gas for effecting the gas circulation is led from the pipe 6 through a pipe 12 forming an injector nozzle 13 in the pipe 10. Any unabsorbed gas may return to the evaporator through the pipe 11. Where only a small amount of added neutral gas is present, or where the evaporator and absorber are under vacuum and a small amount of air leaks into the system, the gas space of the absorber may be enlarged and the high pressure gas may be led directly into it and projected against a baffle to effect a circulation of gas over the absorbent, there being only a single passage between the evaporator and absorber. Specifications 199,366 and 206,609 are referred to.
Patent GB-582710-A (GB)
Title: Obtaining drinking water from sea and other saline waters
IPC: C02F1/00
Filed: 1943-03-13
Abstract: Drinking water is obtained from sea water by treating with reagents such as silver oxide, carbonate, or sulphate, and barium oxide to precipitate the chlorine ions and sulphate ions, and indirectly the magnesium ions, to yield a solution containing mainly sodium ions as hydroxides which after filtering is treated to remove the sodium ions for example, by precipitation with uric acid powder and subsequent filtration or by passing through a hydrogen-ion exchange apparatus of the resorcinol condensation product type which is capable of adsorbing cations only when associated with anions yielding an alkaline reaction. Re-activation is effected by running through tartaric or citric acid which can be dissolved in sea water since this still has its sodium and other cations associated with chlorine and sulphate ions and therefore inert to the exchange medium.  The apparatus may comprise a short tubular container the lower part containing the cation exchange material which is separated by a filter slab or cloth from the upper part in which the reaction is effected by emptying the ready mixed and packed reagents.
Patent GB-210987-A (GB)
Title: Improvements in carburettors
IPC: F02M19/03
Filed: 1923-02-12
Abstract: 210,987. Grand. H. H. Billon-. Feb. 12, 1923. Spray carburettors.- In carburettors wherein the fuel orifices f, g are formed in a removable hood a, the hood is of non-circular but symmetrical, e.g. lenticular, cross section. and may be replaced bv others of different thickness in order tc vary the air passage around the jet orifices. The hood is mounted on a spindle b in which flats are formed to produce channels e leading from the fuel space d' to the outlet orifices. The hood is secured by and may be remved by unscrewing the nut c.
Patent GB-607751-A (GB)
Title: Improvements in or relating to studio cameras
IPC: G03B3/00
Filed: 1946-02-11
Abstract: 607,751. Studio cameras. STEWART, J. C. Feb. 11, 1946, No. 4231. [Class 98 (i)] A studio camera is mounted for angular movement about a horizontal axis on an upwardly projecting rod pivoted on a fixed member about a horizontal axis therein (parallel to the pivot axis of the camera) and having cam means thereon whereby the focusing of the camera lens is correlated with the angular movement of the camera relative to the rod. As shown, a triangular rod 1, pivoted on a fixed member, has fixing snugly therein a lug 4 carrying a bracket 5 to which is pivoted at 5a a member 6 in which a lens mounting 7, spring- urged at 8, is slidable. The mounting 7 has two projecting pins 9 which resiliently engage the faces 10a of cams 10, also mounted on the bracket 5. Thus, as the lens mount pivots about the stud 5a, focus is maintained by movement of the lens through the pins 9 engaging the cam faces 10a. A cylindrical member 11 is rotatable about the member 6, axial movement thereof being prevented by a plate 12 which engages over a flange 6a on member 6 and is secured to an end plate 13 on member 11. The member 11 is provided with a view finder and may be rotated through a right angle due to a 90 degrees sector being cut out of the plate 12 so that photographs may be taken with the prism length vertical or horizontal, the film being carried by a member (not shown) which may be integral with or detachably mounted on the member 11.
Patent GB-681534-A (GB)
Title: Improvements in or relating to travelling cranes, transport bridges, sliding tables, turntables and the like movable structures
IPC: B66C13/30
Filed: 1951-02-23
Abstract: 681,534. Cranes; elevated railways. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 23, 1951. [Feb. 24, 1950] No. 4413/51. Classes 78 (iv) and 104 (ii). In travelling cranes, transporter bridges, sliding tables, turntables and like movable structures in which a movable member driven at normal or slow speed must stop in register with a stationary member and be locked thereto, contact devices arranged in proximity to the stationary member supply current (1) to the slow speed driving means when current to the normal driving means is cut off near the end of the movement of the movable member, and (2) to an electromagnet which actuates the catches locking the two members. The movable girder 1 of a bridge crane, which carries the load supporting trolley 9, is suspended below and travels along rails 3 so as to come successively into alignment with stationary girders 2 on to which the trolley can be run. Catches 7 pivoted on the ends of the girders 1, 2 are actuated by an electromagnet 8. The right hand catch 7 when in the unlocked position is in the path of stops 9<SP>1</SP> on the trolley and prevents the latter from moving over the end of the girder. The switch controlling the supply to the normal speed motor.is opened by hand when the girder 1 is an inch or two from the girder 2, &c. The girder 1 carries contact bars 10a, 10b, 10c and a current collector 12a for the supply to the low speed motor and bars 11a, 11b and a collector 12b for the electromagnet 8.
Patent GB-1524788-A (GB)
Title: Wire feeding apparatus and method
IPC: H01B13/012
Filed: 1977-02-03
Abstract: 1524788 Automatic control AMP Inc 3 Feb 1977 [23 Feb 1976] 04530/77 Heading G3N [Also in Divisions B3 and H2]  A machine automatically produces lengths of wire W1 ... W5 of pre-set lengths. Lengths of wire are manually led from reels 22-30, on to a drum 42, a pressure roller 58a is lowered on to one length of wire W1 to press it against roller 42, a motor 18 is then started to drive roller 42 to run wire Wl a  set distance and then motor 18 is stopped. A second pressure roller is lowered on to a second wire and again motor 18 started, the process being repeated until the different lengths of wire (L1- L5), Fig. 8 (not shown) are produced. The start and stop cycles for motor 18 for these lengths of wire are given in Fig. 9 (not shown). The lengths required are manually pre-set by switches (88a .. ... 96d), Fig. 6 (not shown) which feed into a computer (108), Fig. 6A (not shown) which automatically controls the production of the wire lengths including the raising and lowering of the pressure rollers by pneumatic cylinders. Fig. 7 (not shown) gives the motor control circuit.
Patent GB-532935-A (GB)
Title: Improvements relating to shear apparatus for molten glass
IPC: C03B9/29
Filed: 1939-07-31
Abstract: 532,935. Glass manufacture. CORNING GLASS WORKS. July 31, 1939, No. 4709/40. Convention date, Aug. 12, 1938. Divided out of 532,888. [Class 56] A shearing-apparatus for cutting a stream of molten glass comprises two blades rotated in opposite directions about a common axis, and means for swinging the axis in a vertical plane to move the blades to and from a cutting position. The blades 23 are secured to co-axial shafts 24, 25 which are rotated at high speed in opposite directions by a bevel wheel 56 and are provided with flywheels 58, 57, respectively, to keep the speed constant. The shafts are mounted in a casing 26 which is oscillated about an horizontal shaft 27 to move the blade to and from the stream of glass. The upper portion 59 of the casing 26 surrounds the blades and is provided with a pipe 60 through which cooling- medium is blown on to the blades. Specification 532,888 is referred to.
Patent GB-304934-A (GB)
Title: Improvements in apparatus employed in the shrinking or analogous treatment of fabrics
IPC: F26B13/10
Filed: 1928-02-15
Abstract: 304,934. Charlesworth, H. Feb. 15, 1928. Gases and vapours, treating with.- In the shrinking or similar treatment of fabrics, hanging loops are formed by a carriage traversed over the stationary bars, the carriage having means for drawing in the fabrics at a rate greater than that at which the carriage moves. The fabric F<1> is attached to the, carriage f and the carriage is traversed quickly to the far end of the machine by longitudinal side screws driven from a shaft g. The end of the fabric is then detached from the carriage and attached to the end cross-bar a. The carriage is then slowly traversed in the reverse direction, a draw-roller k mounted on the carriage and driven by chains j<2> drawing in the fabric at a speed sufficient to form the loops F. A nip roller m carried by arms n mounted loosely on the carriage holds the fabric against a cross-bar long enough to enable a loop of the desired depth to form. A draw-off roller p with cutter t draws off the fabric on completion of the operation. The carriage may be driven by chains instead of screws.
Patent GB-870083-A (GB)
Title: Improvements in or relating to the manufacture of borides
Inventor: COOPER GRAHAM BAPTIE
IPC: C01B31/36
Filed: 1958-02-13
Abstract: Boron carbide is prepared by heating a mixture of carbon and boric oxide (or one or more substances which provide boric oxide on heating) together with an organic binder to provide an expanded carbon skeleton or framework on which the other ingredients of the mixture are supported, and subsequently heating to 1300 DEG -1900 DEG C., e.g. in a carbon resistance furnace.  The binder is a carbonaceous material which will on heating char and expand forming the coherent carbon skeleton, e.g. sucrose, molasses, starch pitch, asphalt, tar, cork dust, leather dust, resin, or rubber.  The initial mixture may be moulded into cylinders or formed into pellets, and the binder may be mixed with water.  The ratio of boric oxide to carbon in the initial mixture including C in the binder is 1.6:1 to 2.5:1. The mixture may be first heated to 700 DEG C., or slowly dried at stepwise increases from 110 to 600 DEG C., to expand and render the binder coherent.  To remove oxides of carbon during boride formation the pressure may be reduced, or a current of inert gas, or a mixture 90/10 N2/H2 may be passed through.  In a modification an oxide of Ti, Zr, Nb, Ta, Mo, W, Cr, Ni, or a rare earth metal of At. No. 57-71 is added to the initial mixture to form the corresponding metal borides. Boron nitride may be prepared by passing N2 into the boron carbide forming mixture when heated to 1300 DEG -1900 DEG C.  Boron trichloride is formed by passing Cl, over the boron carbide at above 300 DEG C.  Boron tribromide is formed by passing Br2 vapour over the boron carbide at above 600 DEG C.  Boron sulphide is formed by passing S vapour over the boron carbide at above 1000 DEG C. Specification 870,084 is referred to.
Patent GB-1240561-A (GB)
Title: Improvements in or relating to methods of comparing two unknown electrical valves
IPC: H03M1/00
Filed: 1969-01-29
Abstract: 1,240,561. Analog/digital converters. SIEMENS A.G. 28 Jan., 1969 [1 Feb., 1968], No. 4738/69. Heading G4H. A non-linear digital measure of the difference between two signals is obtained by comparing in comparators 4, 9 (Fig. 1) the two signals with an exponentially varying reference signal u, signals 16, 17 being delivered at equality. The time interval between the two signals is measured by counting clock pulses in a counter 13. The count may be displayed together with a plus or minus sign dependent on which of the signals 16, 17 occurs first. The two input signals (U x <SP>11</SP>, U y <SP>11</SP>, Fig. 3, not shown) may be fed via a change-over switch (S1), rectifier (23) and a second change-over switch (S2) to the apparatus of Fig. 1, one of the signals (V y <SP>11</SP>) being stored on a capacitor (24). The count in the counter represents log To measure the absolute level of one of the signals a change-over switch may replace the second signal by zero volts (Fig. 4, not shown). A test object (X, Fig. 5, not shown) and a potentiometer (C) may be supplied with a common potential (25) and the outputs connected to the apparatus of Fig. 1 to give the attenuation of the test object.
Patent GB-853869-A (GB)
Title: Improvements relating to fluorescent lamp fittings
Inventor: HUBBLE LESLIE HOWARD
IPC: F21S8/04
Filed: 1957-02-12
Abstract: 853,869. Electric lighting fittings. BRITISH THOMSON-HOUSTON CO. Ltd. Feb. 12, 1958 [Feb. 12, 1957], No. 4780/57. Class 75(4). A fitting for elongated tubular discharge lamps comprises a metal tray 1 carrying the control gear 7 for the lamp and having depending clips 4 for supporting this and a trough-shaped cover member 5 substantially longer than the tray and formed of rigid plastic material which may be translucent, the tray being carried in the base of the member 5 and the electrical connections 6 for the lamp extending outwards from the ends of the tray and being provided with closely fitting covers 8 for connection to the lamp caps. The covers may be in the form of flexible sleeves of india rubber. The supply lead 10 may be provided with a grommet where it passes through the end wall of the cover 5 and where it enters the tray 1, similar grommets being provided for the leads 6 to the lamp. The fitting has supporting hooks 3 provided with washers 13 for excluding moisture where the hooks enter the cover 5 and tray 1.
Patent GB-785551-A (GB)
Title: Method and apparatus for generating magnesium vapour in the interior of a molten metal or alloy using magnesium oxide
IPC: C21C1/10
Filed: 1955-02-18
Abstract: 785,551. Refining metals and alloys. HURUM, F. J. O. Feb. 18, 1955, No. 4944/55. Class 82(1) Magnesium is added to molten, metals and alloys at a temperature above the boiling point of magnesium by means of briquettes which are kept submerged in the melt, the briquettes containing as reacting agents magnesium oxide and calcium silicide and being securely fixed in such a way that the magnesium vapour generated and the slag formed will rise unhindered to the surface of the melt. The briquettes may also contain fluxing materials such as CaF 2 . NaF. Na 2 SiF 6  or NaCl or oxides of alkaline earth metals or finely powdered or granulated aluminium or ferrosilicon. As shown in Fig. 4, the molten metal 2 in a furnace is treated with briquettes 44 strung on a rod 55, the rod being held on a rotatable arm 77 which can be raised or lowered by hydraulic ram 15. Prior to immersion in the metal the briquettes are heatedin a furnace 100. Reference has been directed by the Comptroller to Specifications 654,911 and 716.856.