baber/WOPTO huggingface dataset:
Patent GB-133400-A (GB)
IPC: F04D27/02
Abstract: 133,400. British Thomson - Houston Co., (General Electric Co.). Sept. 9, 1918. Regulating and controlling.- A pulsation-preventing valve mechanism is combined with a constant-volume regulator of known type. The pivoted beam 13 and sliding weight 17 of the constant-volume regulator are connected to the usual float 18 in the inlet 7 of the compressor 6, which is driven by the turbine 5. Regulation of the turbine speed by the constantvolume regulator is obtained through a lever 12 actuating the pilot valve 11 of a fluid-actuated motor 10, which controls a valve in the pressure-fluid inlet 9 of the turbine. The pulsation-preventing gear comprises a lever pivoted on a fixed arm 16 and connected at one end by a link 47 to a pressureresponsive device connected by a pipe 46 to the compressor delivery 8. A shaft 14, around which the lever 15 can turn, is rigidly connected to the beam 13. The lever 15 is connected to the bypass valve 32 by a link 43, a lever 42, a shaft 41, a sliding plate 36 containing a cam-groove, a rod 34, and an arm 33. The pivot point B of the beam 13 in the lever 15 is lowered either by an increase in pressure in the delivery 8 raising the link 47, or by a decrease in the volume lowering the float 18. When this happens, the link 43 is lowered and consequently the cam-plate 36 is moved. The cam-slot in the plate 36 has two straight portions and a curved portion. When the pin of the rod 34 is in a straight portion, the by-pass valve is not affected; but when the pin is in the curved portion, a movement of the plate 36 operates the by-pass valve in the correct direction to prevent pulsations. Stops 49, 50 limit the movements of the bell-crank lever 23 and correspond to maximum and minimum speeds at which it is desired to run the machine. If, for instance, the float rises to an extent corresponding with the maximum desired speed, the bellcrank lever is moved against the stop 49 and prevents further operation of the steam-regulating mechanism 9 by the volume governor. The speed governor 30 then takes control. Even in this state of affairs, the pulsation-preventing mechanism remains under the control of the force on the float 18 and the discharge pressure, because the pivot point B can move about the pivot of the lever 15 independently of the fixing or otherwise of the bell-crank lever 23. The pulsation-preventing mechanism may thus be brought into operation under all conditions.
Patent GB-133485-A (GB)
IPC: H05B3/00
Abstract: 133,485. Kent, H. A. Oct. 28, 1918. Resistance furnaces.-A crucible 14 heated by current passing through its walls is mounted between graphite blocks 1, 2 held by metal conductors 3, 4 which are free to rotate in bearings 5, 6 when the crucible is tilted ; the conductors 3, 4 carry disks 7 dipping in mercury troughs 8 connected to the mains, and are adjusted by screws 12 one of which carries a spring 13 to keep the blocks 1, 2 held against the crucible. The blocks 1, 2 may be secured to the conductors 3, 4 by water-cooled caps 20. The crucible may be of graphite, a carbide, or a mixture of refractory material with graphite, or may be of a substance conductive only when hot, such as zirconia, thoria, or yttria; in the latter case, it is heated first by radiators 16 at the bottom and sides. A mould may be attached to the furnace so as to assume a vertical position when the crucible is tilted into a horizontal position.
Patent GB-133748-A (GB)
IPC: H02K9/10
Abstract: 133,748. Thompson, H. F. J., and Wood, T. H. Oct. 12, 1918. Addition to 121,005. Drawings to Specification. Feed-water, heating.-Carbon dioxide, ammonia, or other gas which will not support combustion, or compressed air or other gas, is used as the circulating medium through the electric apparatus in the cooling system described in the parent Specification. The circulating gas may be cooled by the condensate and make-up feed-water on their way to the boiler.
Patent GB-1034394-A (GB)
Title: Sleighs, for instance sports sleighs
IPC: B62B13/06
Filed: 1965-03-30
Abstract: 1,034,394. Sleighs. F. A. PORSCHE. March 30, 1965, No. 13375/65. Heading B7B. A sleigh made in the form of a one-piece plastics moulding has an upwardly curved bow 6 and two longitudinally extending ribs 17 on the underside. The side walls are formed with upper horizontal extensions apertured to receive hand holds 15 and a back rest or propelling handle 14.
Patent GB-127584-A (GB)
Title: Improvements in and relating to Air Brake Systems.
IPC: B60T13/36
Filed: 1919-05-27
Abstract: 127,584. Automatic Straight Air Brake Co., (Assignees of Neal, S. G.). May 11, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Pressure-regulating valves.-A feed valve B for a compressed air brake system comprises the supply passage 21 connected to the main reservoir E by pipe 2 and fitted with supply valve 24 controlled by diaphragm 26 separating chambers 19, 20. The chamber 19 is connected to the train-pipe by pipe 3 and the driver's valve A. The chamber 20 is connected with the small chamber 33 in which is the pilot valve 34 adapted to connect the chamber 33 either to the main reservoir chamber 22 or to chamber 27 which is connected by passage 16 with the chamber 19. The valve 34 is connected to the spring plunger 30 to which is also attached the diaphragm 28.
Patent GB-253346-A (GB)
Title: Improved means for starting synchronous alternating current machines
IPC: H02K19/12
Filed: 1925-05-22
Abstract: 253,346. General Electric Co., Ltd., and Garrard, C. C. May 22, 1925. Rotary converters.-In starting a synchronous motor, as in a motor converter, three-phase rotor windings 10, 11, 12 are connected through sliprings to external windings 31, 32, 33, arranged on a magnetic core, and when the machine approaches synchronous speed a switch 34 is closed across one of the three windings so as to produce a synchronizing torque due to the magnetizing effect of the unbalanced windings. The connections are made through ohmic resistances 28, 29, 30, and part or the whole of the resistance 30 is short-circuited together with the winding 33. The magnetizing effect may be obtained by altering the relative numbers of turns on the phases instead of by short-circuiting. Specification 10841/13, [Class 38 (ii), Electric currents, Converting &c.], is referred to.
Patent GB-955210-A (GB)
Title: Improvements relating to information storage devices
Inventor: GRIBLE MAURICE WOOLMER
IPC: G11C17/02
Filed: 1962-04-07
Abstract: 955, 210. Table look-up arrangements for digital computers. FERRANTI Ltd. March 29, 1963 [April 7, 1962], No. 13487/62. Heading G4A. A semi-permanent matrix store comprises a set of parallel conductors 1A, 1B &c., a further set of conductors 2A, 2B &c., generally perpendicular to the first set but bent to form parallel sections at the cross points, and a sheet of electrically conductive material, not shown, between them and having apertures at selected cross-overs so that the screening between the sets is broken at these points to enable electromagnetic coupling. Storage units employing this principle may be built up from printed circuit sheets carrying the conductors and copper sheets with holes obtained from a standard punched-card punch. The conductors may each be terminated at one end by their characteristic impedances so that a read-out pulse applied to them will not be reflected; this is stated to enable faster read-out.
Patent GB-406888-A (GB)
Title: Improvements in carburettors
IPC: F02M1/00
Filed: 1933-05-09
Abstract: 406,888. Spray carburetters. BOLSEZIAN, G., 4, Rue de Liege, Paris. May 9, 1933, No. 13505. Convention date, May 10, 1932. [Class 7 (iii).] Fuel flows from the float chamber 1 through a siphon 3, 4, the limb 4 of which extends into the suction passage, and is provided with an emulsifying tube 6 having a restricted air inlet 11 and two spraying orifices one 10, above, and the other 9 considerably below the normal fuel level 2 .. 2. The tube 6 discharges into the Venturi tube 8. When the engine is at rest, air enters through orifice 10 and stops the siphon action. Fuel remaining in the limb 4 because of capillarity in the orifices 9, 10, provides a supply to facilitate starting. A mixture throttle 7 is provided, as well as an automatic air shutter 12, the spindle 15 of which is eccentric both to the axis of the carburetter and to the plane of the shutter. The part 14 of smaller area is loaded, whilst the part of larger area has an upturned extremity 16, or is wholly bent, so that complete opening of the shutter is ensured after it has reached its position of balance. The shutter in its closed position leaves a small air space to permit of slow-running. To facilitate starting from cold, an arm 17, Fig. 2, on the shutter 12 is connected by a spring 18 to an arm 19 on the throttle valve 7 in such a manner that the load on the shutter is removed when the throttle is opened and vice versa. The spring loading may be controlled from a distance by a rod 20. In modifications, Figs. 3 and 4 (not shown), the siphon is described in connexion with an updraught and with a horizontal straightthrough type of carburetter respectively. In both of these, the air inlet valve is in two parts one of which is adapted to admit air for slowrunning. In a further modification, the shutter closes the air inlet completely, an auxiliary inlet controlled by a screw being provided. In a further modification, Fig. 6, the loading spring 18 of the air shutter is connected at its lower end to the casing and has an abutment 34 and a straight portion on which a member 33 carried by the throttle arm 19 is adapted to slide. The spring-load is not relieved until the throttle has opened sufficiently for the member 33 to engage 34. In a still further modification, the shutter is completely free but is controlled by a lever actuated from the throttle valve through a resilient connexion.
Patent GB-975908-A (GB)
Title: Improvements in or relating to nuclear reactors
IPC: G21C5/18
Filed: 1961-04-14
Abstract: 975,908. Nuclear reactors. GUTEHOFFNUNGSHUTTE STERKRADE A. G. April 14, 1961 [April 16, 1960], No. 13561/61. Heading G6C. A nuclear reactor utilizes as a first moderator, heavy water contained in tubes dispersed in a mass of a second different moderator, fuel elements being disposed inside the tubes containing the heavy water moderator. In the embodiment illustrated, tubes 2 of pure aluminium containing heavy water are distributed throughout an annular zone in a second moderator comprising graphite rods 3 of hexagonal cross-section. The rods 3 lie within a cylinder of diameter d coaxial with the pressure vessel 1,d being about 8/11ths of the internal diameter of the vessel 1, each rod 3 having a longitudinal bore through which extends an aluminium tube 4. Similar tubes 4 are uniformly distributed in each of the tubes 2. Solid graphite rods 5 lie between the rods 3 and the vessel 1 to form a reflector. Fuel elements (not shown) are supported within the aluminium tubes 4, through which tubes a coolant may be passed, The vessel 1 is surrounded by a lead thermal shield 6 through which extend tubes conducting cooling water and a concrete biological shield (not shown). The fuel may be natural uranium which would not be possible if the heavy water was housed in a single tank having necessarily thick walls. Such reactors, employing heavy water and graphite as moderators, have a much higher conversion ratio (U<SP>238</SP> to Pu<SP>239</SP>) than do reactors employing only graphite.
Patent GB-106044-A (GB)
Title: Improvements in Electric Resistance Furnaces.
Inventor: LANDTMETERS JOSEPH CHARLES
IPC: F27D11/02
Filed: 1916-09-25
Abstract: 106,044. Landtmeters, J. C. Sept. 25, 1916. Resistance furnaces.-A resistance 3 surrounding but spaced from a crucible 13 is of helical or other form providing a long current path and is enclosed in an outer tube also heated by current. Both the resistances may be of graphite. The inner heating-resistance may be made by cutting a carbon or graphite tube so as to leave one or more helices or zig-zag portions. The turns of the helix may be of rectangular, circular, or other section. In the arrangement shown, the inner and outer resistances 3, 4 are attached to a movable upper terminal block 1 provided with handles 6 The crucible 13 rests on or fits into a lower terminal block 7. A brickwork chamber with a refractory lining encloses the furnace. A single crucible may be surrounded by more than one helical resistance. Such furnaces are suitable for the treatment of ores, metalloids, and metals, especially refractory materials such as tungsten.
Patent GB-238328-A (GB)
Title: Improvements in stops for colliery & other vehicles
IPC: B61K7/22
Filed: 1924-06-04
Abstract: 238,328. McCallum, R. June 4, 1924. Wheel stops; buffer stops E are operated by a hand lever M which at the same time actuates pawls I which support the stops and take the greater part of the strain of the impact. The lever is connected to the stop by a slotted link L so as to remove the pawls before the stop is operated. The lever M is also connected by rod N and lever 0 with a wheel stop P which is in operation when the buffer stop is depressed.
Patent GB-356697-A (GB)
Title: Hair waver
IPC: A45D2/42
Filed: 1930-05-03
Abstract: 356,697. Hair - waving appliances. FULTON, N., 45, West 32nd Street, New York, U.S.A. May 3, 1930, No. 13696. [Class 131.] In a hair waver of the kind comprising a comb 13 and a base member 10 pivoted together at one end and provided with locking means at the other, the comb is provided with lateral flanges 22 extending the full length of the comb and situated midway between the longitudinal edges thereof. The flanges 22 are curved upwardly, project beyond the longitudinal edges of the base member 10, and may be of greater height than the upper edge of the comb. The end of the comb remote from the pivot 14 is formed with a projection 16, provided with a rounded front edge 18 and a flat rear edge 19, and adapted to engage in a slot 17 in the base member 10. In use, the wavers are placed in the hair in offset relation as shown in Fig. 1 so as to curve the hair as shown at 26, 27, alternate wavers facing in opposite directions, and are secured in position by clips 20 engaging the upper parts of the combs, the portion of the hair between the wavers being forced upward into a crest or wave by the flanges 22 of adjacent wavers.
Patent GB-1306301-A (GB)
IPC: C11D17/00
Filed: 1970-03-20
Abstract: 1306301 Detergents containing sodium silicate C J GAISER 20 March 1970 [28 July 1969] 13751/70. Heading C5D [Also in Division C1] A detergent composition comprises a watersoftening chelating agent, a surfactant and amorphous sodium silicate in the form of non- glassy, low-bulk-density particles having a plurality of spurs and voids, the said particles being capable of forming a colloidal dispersion in water. The sodium silicate is preferably prepared by the method of United States Specification 3,450,494 which comprises heating an aqueous 45 to 80% by wt. sodium silicate dispersion under a pressure of at least 500 lbs. per sq. inch, and flashing off water by spraying into an expansion zone of lower pressure and of ambient temperatures (see Division C1). The surfactant may be anionic or nonionic, and the chelating agent may be sodium ethylene diamine tetraacetic acid or nitrilotriacetic acid. Tablets containing amorphous sodium silicate, EDTA, a nonyl phenol ethylene oxide condensate, carboxymethyl cellulose, an optical brightener and perfume are coated with a molten alkylarylpolyethylene glycol.
Patent GB-854540-A (GB)
Title: Catch for vehicle bonnets or other closures
Inventor: WHITEHOUSE SAMUEL
IPC: E05C19/14
Filed: 1958-05-01
Abstract: 854,540. Toggle fasteners. BLOXWICH LOCK & STAMPING CO. Ltd. April 30, 1959 [May 1, 1958], No. 13857/58. Class 44. A catch for releasably securing together two members such as a car bonnet side 10 and a fixed part 11 comprises a keeper 12 on one member 11, a spring pressed latch 14 pivotally mounted on the second member 10 and a toggle lever 18 pivoted on the second member 10 and adapted to engage the latch and move it angularly about its pivot 16 into locking engagement with the keeper and in another position to allow the latch to be moved angularly in the opposite direction by its spring clear of the keeper so that the members can be separated. Both the latch and the toggle lever are pivotally mounted on a bracket 13 which is fixed to the second member 10 and the toggle lever has a pin 20 for engaging the latch; in the released position of the catch it engages a shallow recess 21 in the outer edge of the latch 14 and in the locked position engages a flat abutment portion 22. The toggle lever is moved by means of a finger piece 23 and its movement is limited by a pin 24 in the bracket against which the upper arm of the toggle lever abuts. The upper end of the bracket has a roller 28 to locate the member 10 relative to the member 11.
Patent GB-388009-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/20
Filed: 1931-05-12
Abstract: Azo dyes are made in substance on a substratum or on the fibre by coupling the diazo compound of an o-nitroaminodiarylether with an arylide of 2 : 3-oxynaphthoic acid or a derivative thereof further substituted in the naphthalene nucleus.  In examples (1) the dyestuff 3-nitro-4-aminodiphenylether --> the b  - naphthalide is prepared in substance, (2) cotton is impregnated with the p-chloranilide and developed with diazotized 4<1>-chloro - 3 - nitro - 4 - aminodiphenylether.  Other diazo components specified are the 4<1>-bromo-or iodo- or 2<1> : 4<1>-dibromo-3-nitro-4-amino-diphenylether and other coupling components the anilide, o- and m-chloranilide, a -naphthalide, o-, m-, and p-toluidide, 4- and 5-chlor-2-toluidide, o- and p-anisidide, o- and p-phenetidide, 4-chlor-2-anisidide, di-anisidide, and 3 : 4- or 2 : 5-dichloranilide.  The dyestuffs may be produced on wool, silk, and artificial silk.
Patent GB-1088587-A (GB)
Title: Process for preparing ethane-1-hydroxy-1, 1-diphosphonic acid
Inventor: ROGOVIN LAWRENCE
IPC: C07F9/38
Filed: 1966-03-30
Abstract: Ethane - 1 - hydroxy - 1,1 - diphosphoric acid (EHDP) is prepared by (1) continuously making a substantially anhydrous reaction solution by mixing together phosphorous acid, acetic acid and acetic anhydride, the acetic anhydride being in molar excess of the phosphoric acid, (2) passing the substantially anhydrous reaction solution to a reaction zone and maintaining the solution at 150-350 DEG  F. to effect reaction between the acetic anhydride and phosphorous acid, (3) continuously withdrawing a stream of reaction solution containing acetyl-containing compounds and (4) continuously metering water into the withdrawn reaction solution to hydrolyse the acetyl containing compounds to form a mixture containing EHDP and CH3COOH from which the EHDP is recovered.  The acetic anhydride is preferably metered into a premixed solution of phosphorous acid and CH3COOH.  The molar proportion of (CH3CO)2O to phosphorous acid is suitably in the range 1.1:1 to 2:1 and preferably 1.3:1 to 1.5:1. The molar ratio of CH3COOH to phosphorous acid is suitably 0.1:1 to 13:1. The reaction zone may comprise a constant volume back mixing reaction system consisting of a plurality of reaction stages, the amount of reaction solution being continuously added to the first stage of the reaction zone being equal to the amount being withdrawn from the last stage.  In the hydrolysis stage it is preferable to use the theoretical amount of water required to hydrolyse all the acetyl groups.  The final product can be dried for use as the free acid or neutralized to form any desired salt.
Patent GB-739773-A (GB)
Title: Method of forming a point-contact on a wire
IPC: H01L21/00
Filed: 1954-05-14
Abstract: 739,773. Semiconductor devices. STANDARD TELEPHONES & CABLES, Ltd. May 14, 1954 [May 23, 1953], 'No. 14188/54. Class 37. The point on a wire electrode for a semiconductor device is produced by passing a high voltage discharge between the wire and another electrode, in an atmosphere containing a gaseous compound of a significant impurity, some of which is thereby introduced into the wire. The compound may be a hydride, lower alkyl or carbonyl of impurities such as phosphorus, arsenic, antimony or boron. The process may be carried out by pushing the wire through a rubber diaphragm into a chamber containing the other electrode. Reference is made to Belgian Specification 520,268.
Patent GB-1236913-A (GB)
Title: Manufacture of silicon carbide
Inventor: DYNE MICHAEL DAVID CAMERON
IPC: C30B25/00
Filed: 1967-03-29
Abstract: 1,236,913. Silicon carbide whiskers. NATIONAL RESEARCH DEVELOPMENT CORP. 1 July, 1968 [29 March, 1967], No. 14211/67. Heading C1A.  Silicon carbide whiskers are made by reacting SiO vapour and CO in the presence of H 2  and solid phase carbon at a temperature between 1200 and 1600 C., adjacent to a substrate which is heated to a temperature greater than 1200 C., upon which SiC whiskers are formed. Preferably the reactants are present in the molar ratios SiO: CO of 1:1 and H 2 : CO of at least 2:1. SiO vapour may be generated by heating a substantially equimolar mixture of Si and SiO 2  to a temperature of at least 1200 C. and the evolved vapour may then be flushed into contact with the other reactants by a stream of inert gas. The reaction is preferably carried out at a reduced pressure of about 10 Torr. The specified substrates are SiC, Si 3 N 4 , Al 2 O 3 , mullite and carbon.
Patent GB-808057-A (GB)
Title: Improvements in or relating to lead pencils
IPC: B43K29/00
Filed: 1957-05-03
Abstract: 808,057. Pencils. EAGLE PENCIL CO. May 3, 1957 [May 18, 1956], No. 14213/57. Class 146(3) In a lead pencil of the type comprising a shaft and a burnishing cap at one end thereof, the burnishing cap consists of a plate of relatively smooth. hard material having a keying structure extending downward from its periphery into notches in the end of the shaft, the plate being securely bonded to the shaft. As shown, the cap H, which may be made of metal or a non-hygroscopic plastic e.g. polystryene, is hexagorial to fit on the rear end of a pencil having a wooden shaft C of hexagonal cross-section, the upper surface 15 of the cap is rounded so as to be suitable for smoothing the drawing paper after erasure. Three prongs 16 of triangular cross-section and tapering at their lower ends to points 19 are formed integrally with the cap H on the lower surface and at alternate sides thereof. The notches 18 are cut in the rear end of the pencil shaft C so that when the cap H is cemented thereon the prongs 16 are seated in the notches and the outer faces of the prongs are flush with the surface of the shaft.
Patent GB-813098-A (GB)
Title: Improvements in or relating to scintillation detectors
Inventor: COOK JEREMY DAVID
IPC: G01T1/20
Filed: 1957-05-06
Abstract: 813,098. Scintillation detectors. MULLARD Ltd. May 6, 1957, No. 14345/57. Class 40 (3). A scintillation detector comprises a chamber 1, part of the inner surface of which is a planar phosphor screen 2 and which is light tight except for a window 3, a light-sensitive element 4 and a cylinder 5 normal to the planes of the window and screen, the dimensions of the inner lightreflective surface of the cylinder being so chosen to increase the amount of light passing through the window to an extent greater for scintillations occurring at the parts of the screen remote from the centre than for those in the centre of the screen. The light-sensitive cathode of a photomultiplier tube 4 may be a coating on the inside of the circular window 3 and the inner surface of the tight cylinder 5 a white matt finish. Light from corner C impinges directly on window 3 (ray c) and is reflected from the inner surface of cylinder 5 (ray b). Light from the centre 4 is received only directly (ray a).