baber/WOPTO huggingface dataset:
Patent GB-974662-A (GB)
Title: Improvements in or relating to steam producing apparatus
IPC: F22B1/02
Filed: 1961-03-24
Abstract: 974,662. Feedwater supply systems for forced flow steam boilers. P. LEGRAND. March 24, 1961 [March 29, 19601, No. 10935/61. Heading F4A. In a forced flow, once-through steam generator having a low pressure drop between the feedwater inlet and steam outlet, a reserve of water is provided to supply the boiler ternporarily should the pressure in the feed supply line suddenly fall due to feed pump failure, or to supplement the supply in the event of a feed line pressure drop due to excessive demand for steam, by connecting a water storage vessel in parallel with the tube system, the vessel being of such a height or located at such a level that the stored water is automatically delivered by gravity into the feedwater inlet when said pressure, drop occurs. In the form shown in Fig. 1, the generator consists of an upright vessel 1 located within the shield 12 of a nuclear reactor, the coolant gases from the reactor flowing downwardly through the vessel to heat a tube nest 9 therewithin. Connected between the feed inlet 4 and steam outlet 6 of the generator but located outside the shield 12 is a vertical columnar tank 2 with an upward extension 13 of height sufficient to prevent water flowing from the vessel 2 into the steam outlet. The tube nest 9 consists of layers of tubes wound helically around a core 10. In a modification the tube nest is of the type descrided in Specification 970,722, the tubes being grouped in threes connected by trifurcating pieces to the water and steam headers, each tube being double-walled and terminating in fittings as described in Specification 955,147, which constrain the water and steam to flow within the annulus between the double walls and the heating fluid to flow through the inner tube as well as flowing around the outer tube. In a further modification, Fig. 6, several heat transfer cells 35a, 35b &c. are disposed within the shield 12 and connected to coolant gas manifolds 42, 43. The water in the make-up tank 34 connected in parallel with the tube systems of the cells is heated by a coil 41 in a vessel 38, thermosiphon circulation being established between the tank and vessel through lines 39, 40. Steam flows from the generator to a turbine 49 the exhaust from which is reheated by indirect contact with live steam in a reheater 48 and flows to a lowpressure turbine 50. A drum 44 is disposed at such a height that it fills with water under full load conditions providing the auxiliary reserve.
Patent GB-1534725-A (GB)
Title: Rocker arm for actuating a valve of an internal combustion engine
IPC: F01L1/18
Filed: 1976-03-18
Abstract: 1534725 Rocker arm construction SELZER & CO KG 18 March 1976 [18 March 1975] 10969/76 Heading F1B A rocker arm for actuating a valve of an I.C. engine is produced from sheet-metal and comprises two juxtaposed sheet-metal plates 1, 2 attached together by welding, the plates being formed with collars 29, 30 defining a bore 31 for housing a bearing sleeve 3 and with depressions 8, 8', 9, 9', which, in the juxtaposed position of the plates 1, 2, form bores 32, 34 to receive an impact pin 4 and a setscrew 5 respectively. The sheet-metal plates are produced by precision stamping and the welds (spot welds at 24-27 and elongate projection welds at 23, 28) are electrical resistance welds. Cylindrical projections 10, 11 stamped out in plate I engage recesses or holes 12, 13 in plate 2. Bevelled edges 15, 16 form an oil channel 17 leading to the impact pin 4 and the setscrew 5 and grooves 18, 19 formed during the stamping operation define an oil duct 20 which communicates with a bore 21 in sleeve 3 to supply oil to the bearing surface. If force feed lubrication is to be used instead of drip feed lubrication, a duct 37 defined by two grooves formed during stamping is provided to conduct oil to an axial bore (not shown) in the setscrew 5, the axial bore opening at the spherical surface 38. Another duct may lead to the impact pin 4.
Patent GB-520569-A (GB)
Title: Improvements in and relating to the utilisation of exhaust steam for the creation ofdraught required for the combustion of fuel in steam or like power plant
IPC: F23L17/16
Filed: 1939-04-11
Abstract: 520,569. Blast-apparatus. KURETSCHKA F. J. April 11, 1939, No. 10975. [Class 51 (i)] The exhaust steam from the blast pipe 5 of a locomotive may be diverted from the smoke box through a by-pass pipe 4 to the atmosphere or to a receptacle under the control of a valve 7 in the by-pass pipe which is operated by the steam distributing valve gear of the engine or other regulator of the steam supplied to the engine.
Patent GB-935563-A (GB)
Title: Improvements relating to the production of sintered thermoplastic material in sheet form
Inventor: HONEY ERIC MAURICE O'CONOR
IPC: B29C67/20
Filed: 1961-03-27
Abstract: 935,563. Making sintered thermoplastic sheets. PRITCHETT & GOLD & E.P.S. CO. Ltd. June 13, 1962 [March 27, 1961]. No. 11028/61. Class 87(2). In an apparatus for continuously producing sintered thermoplastic sheets with ribs transverse to the length of the sheet, a continuous layer of a thermoplastic polymer powder is delivered on to a continuous belt 2 the width being defined by side plates 9, 10, an adjustable gate 8 allowing a uniform depth of powder to flow on to the belt 2, the powder layer then passing under a doctor blade 11 which is reciprocated between an upper and a lower position, the lower position defining the depth of powder corresponding to the required thickness of the main body portion of the final sintered sheet, and the upper position defines a thicker depth of powder corresponding to the transverse ribs, after which the layer of shaped powdered material passes to a sintering oven (not shown). The reciprocating blade 11 is supported in a mounting independent of the hopper and conveyer in order to prevent vibratory movements being transmitted through the doctor blade 11 to the material on the belt. Further it is reciprocated by a cam means which is geared to the driving mechanism for the continuous belt 2. The doctor blade 11 may have a tapered lowered edge. Specification 829,305 is referred to.
Patent GB-715120-A (GB)
Title: Improved process for the recovery of gold from solutions and suspensions thereof
Inventor: LEWIS JOHN AUGUSTUS
IPC: C01G7/00
Filed: 1951-05-11
Abstract: Gold is recovered from aqueous solutions or suspensions by bringing the solution or suspension into contact with a cellulose ether, the resulting insoluble product containing gold and cellulose substance being separated and decomposed to isolate the gold.  Ethyl cellulose ether as an insoluble powder may be dispersed in the gold solution, or mixed with cellulose it may form a filter-pad through which the gold solution is passed.  The solution may be acidified before treatment with the cellulose ether.
Patent GB-902592-A (GB)
Title: Halogenated benzotriazines and methods of preparing the same
IPC: C07D253/08
Filed: 1961-03-27
Abstract: The invention comprises benzotriazines of the formula <FORM:0902592/IV (b)/1> wherein X is halogen or a trifluoromethyl radical and R is hydrogen or a lower alkyl, ar-lower alkyl, amino, di(lower alkyl)aminoalkyl or a -lower alkyl-benzylideneamino group, wherein the word "lower" indicates a group of 1-6 carbon atoms, and salts thereof (with acids or bases), and their preparation by diazotising an anthranilic acid derivative of the formula <FORM:0902592/IV (b)/2> wherein A is NH2 or a group-O Alkyl which is reacted with an amine RNH2 after diazotisation, or A is an a -methylbenzylidene hydrazino group, to form an intermediate diazonium compound of the formula <FORM:0902592/IV (b)/3> which is then cyclized and, if desired, in the case where R is hydrogen, the product is alkylated to introduce an alkyl, aralkyl or dialkylaminoalkyl group in the 3-position.  Specified products include 7-chloro-6-sulphamoyl-1,2,3-benzotriazin-4(3H)-one and its 3-ethyl-, benzyl-, b -dimethylaminoethyl-, methyl-, a  - methylbenzylideneamino- and aminoderivatives.  Methyl 4-chloro-5-sulphamoyl-anthranilate is made by esterifying 4-chloro-5-sulphamoylanthranilic acid with methanol and is converted into the corresponding amide, N-methylamide, N-ethylamide, N-b -dimethylaminoethylamide and hydrazide by reaction with ammonia, an appropriate amine or hydrazine; the latter compound is converted into the corresponding N-a -methylbenzylidene-hydrazide by reaction with acetophenone.  5-Sulphamoyl-4-trifluoromethyl anthranilamide is made by fluorinating N-acetyl-5-carboxy-toluidine with sulphur tetrafluoride, chlorosulphonating the resulting N-acetyl-5-trifluoromethyl-toluidine followed by treatment with ammonia to give N-acetyl-4-sulphamoyl-5-trifluoromethyl-toluidine, oxidising with permanganate to 5-sulphamoyl-4-trifluoromethyl-N - acetyl - anthranilic acid, refluxing with methanol and conc. sulphuric acid to give methyl 5 - sulphamoyl - 4 - trifluoromethyl - anthranilate and converting to the amide by treatment with ammonia. Pharmaceutical preparations having diuretic activity comprise the above compounds of the invention, together with suitable fillers, excipients and diluents, preferably in the form of tablets, pills or capsules.
Patent GB-129427-A (GB)
Title: Improvements in or relating to Rails for use in Tramway and like Lines.
Inventor: BUTLER SAMUEL
IPC: E01B5/10
Filed: 1918-07-08
Abstract: 129,427. Butler, S. July 8, 1918. Rails, metallic built-up.-Relates to tramway rails having a removable and reversible guard rail 1 supported by brackets 6 and clips 7, and con. sists in arranging the bolts 20 clear of the rail 1 so that it can be renewed without removing the bolts. The rail 1 has ribs or recesses interlocking with the clip 7.
Patent GB-436794-A (GB)
Title: Improvements in the construction of footwear
IPC: A43B7/14
Filed: 1934-04-13
Abstract: 436,794. Boots and shoes. BOEHMER, F. L., 159, Berliner Strasse, Lichterfelde-Ost, Berlin. April 13, 1934, No. 11241. [Classes 17 (i) and 17 (ii)] Lasts ; anatomical boots ; insoles ; soles. -In an anatomical shoe the insole is cut away at the inside of the waist in a curve extending at least as far inwards as the seam between the third and fourth metatarsals. The sole is of similar shape. The last has a base corresponding to the insole, with a pronounced hollow at the inner longitudinal arch. The ankle part of the last is shaped with projections for the ends of the fibula and tibial bones. The heel is, preferably, oval in shape, and its major axis lies along the line F of the heel bone.
Patent GB-1333181-A (GB)
Title: Investment casting apparatus
IPC: G05D11/035
Filed: 1971-04-26
Abstract: 1333181 Pneumatic conveyers PRECISION METALSMITHS Inc 26 April 1971 [9 July 1970] 11288/71 Heading B8A [Also in Divisions B1 E2 and G1] In apparatus for weighing out powdered material and mixing it with liquid and other materials (see Divisions G1 and B1), a pneumatic transfer system is provided to convey the weighed powder from a weigh hopper 11 to a mixing vessel 65. As shown, with the weighed powder in the hopper 11 an electric switch is actuated to switch on vibrators 12 on the hopper and simultaneously to actuate an aerator 84 and to connect a vacuum source 75 with a conduit 70 connecting the hopper 11 to the mixing vessel 65. At the end of a preset period set by a timer 83 the vacuum source 75 is shut-off together with the vibrators 12 and the aerator 84. Pinch valves 71, 80 which can be actuated by a compressed air source under the control of solenoid operated valves 73, 82 are arranged to control the pneumatic transfer of the powder from the hopper 11 and subsequently to isolate the pneumatic transfer system from a vacuum line 115 connected to the mixing vessel.
Patent GB-113520-A (GB)
IPC: B61L13/04
Abstract: 113,520. Wood, S. P., and McKenzie & Holland. March 23, 1917. Track apparatus actuating signals other than on trains.-Treadle mechanism for operation by passing trains to close an electric circuit is arranged so that the circuit is closed by the armature 6 of an electro-magnet 7 which is previously energized so as to draw the armature after it has been lifted mechanically by the treadle 5 and to hold the armature and maintain the circuit closed until the magnet is de-energized. The armature 6 may be raised directly by the treadle 5, or as shown in Fig. 2, may be lifted by an intermediate lever 17 into a position from which the magnet is able to lift it to complete its stroke to close the contacts 16. Bv this device, effective closure of the contacts 16 is obtained even though the treadle 5 is displaced for a very brief time.
Patent GB-561179-A (GB)
Title: Improvements in the preparation of fat-soluble vitamin compositions
IPC: A61K31/59
Filed: 1942-08-14
Abstract: Fat soluble vitamin compositions are prepared by agitating, under reduced pressure, a crude sugar syrup with a fat soluble vitamin containing material.  In examples, shark liver oil and a corn oil solution of irradiated 7-dehydrocholesterol are emulsified in black strap molasses.  In a further example, inverted molasses is used to form an emulsion of cod liver oil. The emulsions are stable, uniform and do not ferment.  They may be added to feeds, milk products and other foods.  Materials containing vitamins A, D, E and K may be used; fish liver oils, sardine oil, herring oil, irradiated ergosterol, chemically activated Liebermann-Burchard sterols and provitamin A are specified.  Emulsifying agents may be employed to assist emulsification.  Before or after emulsification, vitamin C, consistuents of the vitamin B complex, nicotinic acid and the filtrate factor may be added.ALSO:Fat soluble vitamin compositions are prepared by agitating, under reduced pressure, a crude sugar syrup with a fat soluble vitamin containing material in examples, shark liver oil and a corn oil solution of irradiated 7-dehydrocholesterol are emulsified in black strap molasses.  In a further example, inverted molasses is used to form an emulsion of cod liver oil. The emulsions are stable, uniform and do not ferment. They may be added to feeds, milk products and other foods.  Materials containing vitamins A, D, E and K may be used; fish liver oils, sardine oil, herring oil, irradiated ergosterol, chemically activated Liebermann-Burchard sterols and provitamin A are specified. Emulsifying agents may be employed to assist emulsification.  Before or after emulsification, vitamin C, constituents of the vitamin B complex, nicotinic acid, and the filtrate factor may be added.
Patent GB-238001-A (GB)
Title: Improvements in or connected with hydraulic power transmission apparatus
IPC: F15B21/04
Filed: 1924-05-08
Abstract: 238,001. Carey, R. F. May 8, 1924. Maintaining vacuum in pump casing.-In revolving cylinder apparatus for the hydraulic transmission of power, means are provided for producing a vacuum in the enclosing casing B, and for sealing the casing against the entry of air. The casing is initially filled with Liquid, which is withdrawn by a pump E and delivered into a tank D, which serves for leakage replenishing and cooling purposes and seals the casing B. The pump E may be disposed as shown, or in connection with the lower end of a pipe of sutEeient length to contain a column of liquid to balance atmospheric pressure. In a modified form, the casing B is not immersed in liquid and grooves K around the shaft J are fed with liquid from an overhead reservoir.
Patent GB-768791-A (GB)
Title: Fluid-pressure braking device for motor-vehicles
IPC: F16D57/06
Filed: 1955-04-20
Abstract: 768,791. Steering vehicles by braking. GALLAY, R. and STERN, C. April 20, 1955 No. 11429/55. Class 79(2). [Also in Group XXXIV] In a fluid friction brake for motor vehicles in which a gear wheel pump 1 in a fluid pressure circuit is fitted to each of the vehicle wheels such that the vehicle wheel is connected with the driving pinion 6 of the pump ; the housing 5 of the pump being connected to a non-rotary part of the vehicle frame, a valve 13, controlled by a brake lever, may be inserted in the pressure pipe 10 of the pump so as to throttle the output of the pump and thereby brake the wheel. As the wheel rotates oil is circulated from reservoir 8, via suction pipes 9 into the gear wheel chamber, via aperture 15 in valve 13 operating in pressure pipe 10 and back to the reservoir 8. Braking is effected by operation of a hydraulic master cylinder system such that pressure exerted upon the valve 13 to move same in the direction of the arrow F3 against the pressure of spring 14 closes or partially closes the bore of the pressure pipe 10 to cause a certain resistance to the rotation of the intermeshing pinions 6, 7 to produce a braking action upon the wheel. The oil in reservoir 8 may be cooled by the provision of cooling ribs 8a or other means. In order to provide differential braking action on the wheels of the motor vehicle dependent on the load supported by each wheel, each gear wheel pump unit 1 is secured to leaf spring 17 by tie member 21 and wheel axle 20 of the vehicle is coupled to pinion 6 of the pump unit. Link-work 22, 23, 26, connects a piston 27 with the chassis-beam 36 such that the compression of the spring 14 may be adjusted to vary the amount by which the valve 13 may be moved by the hydraulic pressure supplied from the master cylinder circuit to vary the amount by which the aperture 15 restricts the pressure pipe 10 in order to vary the braking effect on each wheel according to the load supported by that wheel. It is stated that control of the valves of the gear wheel pumps could be effected by any fluid pressure means ; such as compressed air, or by a mechanical or electrical device.
Patent GB-718145-A (GB)
Title: Improvements in or relating to dry-shaving apparatus
IPC: B26B19/14
Filed: 1952-05-06
Abstract: 718,145. Dry shavers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 6, 1952 [May 9, 1951], No. 11438/52. Class 131 A dry shaver head having a hair chamber, and a cutter rotating behind a shear plate, is provided with a rotatable ring having at least one aperture communicating, in a given position of the ring, with an aperture in the wall of the hair chamber, the ring clamping the shear plate against the end of the hair chamber and being secured to the shaver by means of a bayonet joint, which is formed by a projection on the ring. formed by a bent-over tag engaging an edge of the aperture in the wall of the hair chamber. As shown, a shear plate 2 and rotating cutter 3 are secured to a dry shaver by the inturned edge of a rotatable ring 4, a groove 12 and aperture 6 in the wall of the hair chamber 7 and bent over tag 10 on the edge of an aperture 5 in the ring 4 forming the bayonet joint. In the position of the ring in which the aperture 6 is closed the tag 10 rides up an oblique side 9 of a sunken part 8 which forms a prolongation of the aperture 6. In the position in which the apertures coincide for the evacuation of cut hair the tag 10 engages the portion 13 of the edge. In a modification the rotatable ring is integral with the shear plate.
Patent GB-382221-A (GB)
Title: Electro- therapic massage apparatus
IPC: A61H15/00
Filed: 1932-04-21
Abstract: 382,221. Magnetos. BIANCA, J. CAPO-, 1, Rue du Helder, Paris. April 21, 1932, No. 11467. Convention date, Dec. 24, 1931. [Class 35.] The magnet 23 of a magneto, driven by a massage roller 7, is provided with a slidable keeper 22 operated by a slider, protruding through the wall of the magneto casing 18, to vary the tension of the current generated.
Patent GB-381112-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B11/00
Filed: 1932-04-21
Abstract: 381,112. Steam boiler water-tubes. JOHNSON, J., Green Shutters, The Highway, Sutton, Surrey. April 21, 1932, No. 11478. [Class 123 (ii).] Water tubes 7 forming the back wall of the combustion chamber of a return-tube boiler are connected to the boiler water space below and above the furnace without the aid of intermediate drums, headers or branches. The combustion chamber of a boiler having a number of furnaces may be divided by tube walls 11 to form separate return chambers for the gases from each furnace. The lower ends of the tubes 7 follow the circumference of the boiler shell, and the tubes may be so arranged that their outer surface is curved from side to side of the boiler. A superheater of the kind described in Specification 310,981, [Class 123 (iii), Steam separators &c.], projects into the upper part of the combustion chamber.
Patent GB-989985-A (GB)
Title: Surface finishing machine
IPC: B24B19/00
Filed: 1963-03-22
Abstract: 989,985. Abrading. CLAIR MANUFACTURING CO. Inc. March 22, 1963 [Oct. 11, 1962], No. 11505/63. Heading B3D. A surface finishing machine comprises means 60 for driving a surface finishing roll 16, a workholder adapted to mount a workpiece to extend into bearing engagement against the roll, gravity powered means 59 operable to bias the roll toward a workpiece finishing position, and hydraulic power means 48, 50 operable to move the roll against the gravity powered means. As described, the machine has two rolls 14, 16 carried at the ends of arms 20, 32 secured to shafts 24, 30 connected for movement together by gears 57. A lever 58 extends from the shaft 30 and adjustably supports a weight 59 comprising the gravity powered means. Levers 40, 45 also extend from the shafts 24, 30, lever 40, at its end, having a block screw-threaded to receive a threaded rod 52 which slidably extends through a ball-shaped bearing in the end of the lever 45 and is connected to the piston 50 of the hydraulic power means, the piston being slidable in a cylinder 48. Rotation of the rod 52 varies the spacing between the rolls in the operative position shown, and hydraulic fluid supplied to the cylinder 48 acts to separate the rolls against the force acting on the weight 59. The workpieces can be mounted on a plate 124 to extend towards the rolls, the plate being mounted on a slide 80 reciprocatable parallel to the axes of the rolls on a platform 20 by an hydraulic piston- and-cylinder unit, the platform being reciprocatable to-and-from the rolls by a further hydraulic piston-and-cylinder unit.