baber/WOPTO huggingface dataset:
Patent GB-830033-A (GB)
Title: Operation of multi-stage steam turbine plants
IPC: F01K3/22
Filed: 1956-04-03
Abstract: 830,033. Steam-turbine plant. SULZER FRERES S.A. April 3, 1956 [April 19, 1955], No. 10214/56. Class 110 (3). [Also in Group XIII] A method of operating a multi-stage steam turbine plant with reheating between the stages for warming up the turbine and the pipes connecting it to the steam generator before increasing the load after a period of low-load running, comprises, while the plant is running at low-load, changing the amount of steam admitted to at least one turbine stage in such a manner that the temperature of the steam supplied to the stage or stages is raised, and then increasing the load on the plant. A steam generator 1 comprising a feed water preheater 3, evaporating tube system 4, a water separator 5 and a two-part superheater 6, 7 supplies steam to a turbine comprising high, intermediate and low-pressure stages 9, 10, 11. The steam is reheated between the turbine stages in reheaters 14, 17. A by-pass pipe 22, which is branched off from between the superheaters 6, 7, is connected to further pipes provided with valves 23, 24 leading to the exhaust pipes 13, 16 of the high and intermediate pressure turbines. Another pipe 27 with a shut-off valve 26 leads to a point in the plant between the inlet of the condenser 20 and the inlet to the feed water preheater 3. From the steam main 8 after the stop valve 30, branch pipes 31, 32, 33, 34 with shut-off valves 35, 36, 37, 38 are provided leading respectively to the highpressure turbine exhaust pipe 13, the intermediate pressure turbine inlet and exhaust pipes 15, 16 and the low-pressure turbine inlet pipe 18. Pipes 39, 42 with control valves 40, 41 connect the pipe 13 to the pipes 16, 18 and pipes 47, 49 with control valves 48, 50 connect the pipe 15 with the pipes 16, 18. Pipes 44, 45 with control valves 43, 46 connect the pipes 13, 16 with a part of the plant between the inlet of the condenser 20 and the inlet to the feedwater preheater 3. Pipes 47, 49 with control valves 48, 50 are provided to by-pass the intermediate pressure turbine 10 and reheater 17. When the plant is to be put on increased load after a period of low load running the temperature of the steam supplied to one or more of the turbine stages may be increased by opening one or more of the valves 23, 24, 26, 35, 36, 37, 38, 40, 41, 43, 46, 48 and 50.
Patent GB-527128-A (GB)
Title: Improvements in or relating to closing apparatus for electric circuit-breakers
IPC: H01H33/34
Filed: 1939-04-01
Abstract: 527,128. Hydraulic transmission of power. REYROLLE & CO., Ltd., A., and MIRREY, J. April 1, 1939, No. 10242. [Class 69 (ii)] A transportable closing-apparatus for electric circuit-breakers is constructed with a hydraulic jack R adapted to engage part of the circuitbreaker to close it, a flexible conduit S connecting the jack R to a source of hydraulic pressure Q the piston P of which is operated by a pair of helical springs B, in a casing B<SP>1</SP>. These springs are compressed by a hydraulic stressing jack C operated by a manual pump D, and the springs operate a cam F which operates the piston via a lever N and rod P<SP>1</SP>. The actuation of the cam F is normally delayed until the springs are compressed by means of a catch lever G held by a trigger H which is released by a lever L only when a projection M on the casing B<SP>1</SP> rises to such a height that the springs are compressed. Adequate power is thus applied to the piston P at the-start. The piston P cuts off communication with a reservoir U at the commencement of its stroke, and a throttle valve V controls the connection between the cylinder Q and jack R. When the jack R rests on its transporting truck a crank V on the flexible conduit S releases the trigger H so that the plunger R<SP>1</SP> of the jack R can be raised slightly without putting full power on the jack R.
Patent GB-545803-A (GB)
Title: Improvements in or relating to circuit arrangements for amplifying and separating two or more oscillations
IPC: H04N5/60
Filed: 1940-06-12
Abstract: 545,803. Electron multipliers and circuits therefor. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 12, 1940, No. 10263. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 16, 1940.] [Classes 39 (i) and 40 (v) ] A circuit for amplifying and separating two or more oscillations e.g. television signals, uses a secondary emission tube to the control grid of which the signals with, if desired, local oscillations are applied while impedances are included in the anode and auxiliary cathode circuits which have a high value respectively, for each of the oscillations to be amplified or for the corresponding intermediate frequency oscillations. Fig. 1 shows circuits 12, 13 coupling the secondary emitting electrode 5 to the sound output of a television receiver while the anode 6 through coupling 18, 19 applies picture signals to the amplifier 20. In a modification, Fig. 2 (not shown), a frequency changing secondary emitting tube is used, a local oscillator being coupled to the control grid through a small condenser in parallel with the signal input circuit. The electrode having the smaller capacity to the control grid is preferably used as the output for the signal most amplified, preferably the sound signal. Fig. 4 shows a tube construction comprising a cathode 2, control and screen grids 3, 4 respectively having a plate shaped anode 6 arranged outside the path of the electrons travelling to the auxiliary cathode 5. A grid 36 is arranged in front of and parallel to electrode 5 and connected through a condenser to the cathode and given a high positive potential. Screen electrode 38 forms an electrostatic field to determine the electron paths while a screen 39 prevents material vaporized from cathode 2 from reaching electrode 5. The grid electrode 36 may be connected within the tube to the anode 6 through a resistance or choke and to the cathode through a condenser. Specification 527,795 is referred to.
Patent GB-128720-A (GB)
Title: Improvements in and relating to the Raising of Water and other Liquids of Low Viscosity.
Inventor: GRANT JOHN CAMERON
IPC: F04B19/16
Filed: 1918-06-22
Abstract: 128,720. Grant, J. C. June 22, 1918. Chain-pumps. - A chain pump comprises two or more endless chains &c. 1, 2, the rising portions of which are so relatively situated that the space between them is filled with liquid, which travels upwards and is discharged at the upper pulleys 3, 4 into the rousing 12. Two or more chains &c. may be superposed on each pulley, and any number of pairs of pulleys 3, 4, each pair carrying a pair of chains &c., may be arranged co-axially. Specification 23735/14 is referred to.
Patent GB-1208131-A (GB)
Title: Improvements in or relating to constant-tension spring supports
Inventor: CIELUCH HENRYK
IPC: F16L3/205
Filed: 1967-03-04
Abstract: 1,208,131. Constant-tension spring supports. BRITISH INDUSTRIAL ENG. CO. (STAFFS) Ltd. 23 Feb., 1968 [4 March, 1967], No. 10337/67. Heading F2S. A constant-tension spring support comprises a lever 23 pivotally mounted between two plates 12, the lever having a connector 27, 28 for connection to a load and spring means acting on the lever 23. The spring means comprise two identical compression springs 17, 18 supported between three abutments 11, 20, 19, a rod 40 pivotally connected to the lever 23 passing through an aperture in the abutment 11 and into the opening of the compression spring 17, said rod being pivotally connected to a second rod 44 which passes through the abutment 20, the spring 18 and is connected to the abutment 19. Rod 44 is slidable in a sleeve 45 secured to the abutment 20. The lever 23 comprises two plates 24, and has first and second selectively operable pivotal mountings, the first being about a pin 31 received in slots 33 in the side plates 12, and the second being about the complementary axis of apertures 35 in the lever plates 24 and apertures 36 in the side plates 12, the pivoting being allowed by the slots 33. In both cases, a load connected to the connector means is supported by a substantially constant force.
Patent GB-1030142-A (GB)
Title: Improvements in centrifugal pots
IPC: D01H7/78
Filed: 1964-03-11
Abstract: 1,030,142. Centrifugal pots. CHIMIOTEX S.A. March 11,1964 [March 22, 1963], No. 10345/64. Heading D1D. A cover 3 for a centrifugal spinning pot 1 is provided with a skirt 5 adapted to seat upon a ledge 7 in the upper part of the pot 1. The cover 3 which is preferably of a plastics material is concave on the inside. The upper limit of movement of the yarn or filament delivery tube which extends through an opening 4 in the cover 3 is arranged to lie above the plane in which the skirt 5 contacts the ledge 7 so that the yarn or filament will be laid at an angle to this plane and will not tend to slip between the pot and the cover. The cover is formed with a taper 6 to facilitate initial positioning and is retained in the pot by a circlip engaging a groove 2 in the pot.
Patent GB-904043-A (GB)
Title: Improvements in or relating to electrical resistance alloys
IPC: C22C38/22
Filed: 1960-03-24
Abstract: An extremely ductile electrical resistance element, e.g. in the form of wire not more than 0.001 inch diameter, comprises an alloy which consists of by weight:-  .Cr.15 to 30% .Al.4.5 to 5.5% .Mo.3 to 5% .Si.up to 1% C up to 0.1%, with the balance iron, impurities and constituents conventionally added, which may include deoxidizers such as Ce, Ca or Zr.  The alloy has without heat treatment a temperature coefficient of resistivity of \sB0.000020 ohms per ohm per deg. C. within the range of - 55 DEG  C. to 150 DEG  C. and a resistivity at 25 DEG  C. of 800 ohms/C.M.F.  Two alloys not within scope of invention are disclosed in the Specification and have compositions:- .Cr.20%.20% .Al.3%.2 to 4% .Cu.3%.- .Fe.-.up to 6% .Ni.74%.balance
Patent GB-759587-A (GB)
Title: Improvements in or relating to moulds for the centrifugal casting of metals
Inventor: MILNES HUGH HERBERT MONCKTON
IPC: B22D13/10
Filed: 1952-04-25
Abstract: 759,587. Centrifugal casting-machines. ALLIED IRONFOUNDERS, Ltd. April 27, 1953 [April 25, 1952], No. 10462/52. Addition to 728,126. Class 83 (1). A permanent unlined metallic centrifugal mould 1 for casting metal comprises an integral extension 2 of reduced diameter to provide a pouring surface to receive molten metal. When wear occurs, the pouring surface can be machined until it reaches a limit corresponding to the bore 4 of the article 5 to be cast.
Patent GB-1223755-A (GB)
Title: Apparatus for promoting artificial breathing and more particularly with injured persons
Inventor: CEUSTER JOSEPH DE
IPC: A61M16/00
Filed: 1968-03-05
Abstract: 1,223,755. Surgical gags; facilitating breathing. J. DE CEUSTER. 5 March, 1968 [19 May, 1967], No. 10515/68. Headings A5R and A5T. A device for improving the air flow in through the patients mouth when applying artificial respiration comprises a cylindrical body 1 having a conical opening 4, at least one asperity (or corrugation) 2, and a projecting rim or collar 3, the asperity and the rim preventing the device from slipping when it is positioned in the patients mouth. It is stated that the device may be used in the corner of the patients mouth and in combination with apparatus which grips the patients chin, nose, and tongue so as to hold the mouth open and the tongue extended.
Patent GB-105352-A (GB)
IPC: C04B28/02
Abstract: 105,352. Gavin, P. Feb 29, 1916. Coating-compositions.-A composition for coating decks &c. consists of mineral pitch, resin, mineral oil, Roman cement, Arran lime, cork dust, and light silica in the following proportions : 11“ cwt. of mineral pitch is melted with 18 gall. of mineral oil, and 3 cwt. Roman cement, 28 lb. Arran lime, and 28 lb. resin are added, the mixture being boiled and cast into 1-cwt. blocks. For use, three blocks are melted, and 5 lb. cork dust and 14 lb. light silica are added. An under-coating may consist of equal parts of carbon, pitch, and resin dissolved in mineral oil.
Patent GB-555632-A (GB)
Title: Adjustable backrests for chairs
IPC: A47C1/027
Filed: 1942-07-28
Abstract: 555,632. Seats. HAYES, W. T. July 28, 1942, No. 10539. [Class 52 (ii)] A back rest 4, which may consist of a hollow pressed steel pillar, is adjustable angularly and vertically between cheeks 3 rigid with the seat frame 1 by a clamping bolt 9 passing through arcuate slots 11 in the cheeks and through a slot 5 in the pillar, another pin 6 fixed in the cheeks passing through the pillar to form the pivot for angular adjustment. Between the pillar and the cheeks are arms 13, slotted in correspondence with the slots 11, and washers 15, and the parts are secured in adjusted position by tightening a hand nut 12. The pillar may be of parallel bar form.
Patent GB-492822-A (GB)
Title: Improvements in and relating to toothed gearing
IPC: G07F15/00
Filed: 1937-04-14
Abstract: 492,822. Prepayment mechanism for meters. WILSON, J. H., and JOHNSON, S. April 14, 1937, No. 10560. [Class 27] [Also in Group XXVI] In a mechanism comprising one or more trains of gears in which the power available for operating the mechanism in one direction is very low, the torque available for actuating an element of the mechanism in that direction is augmented to compensate for the internal frictional resistance of the mechanism by means responsive to the force of gravity and in constant operative relation with the element during the continuance of the torque. The invention is particularly applicable to the prepayment mechanism of electricity meters and the like where the torque of the meter at low load is so small that the opening of the supply switch might be delayed. The Figure shows diagrammatically the invention applied to a mechanism of which the shaft a is adapted to be rotated first in one direction by the gears b, c and d and then in the other direction by the gears e, f, g. A gear-wheel n fixed to the shaft a is biassed in one direction by means of a weighted toothed quadrant l loosely mounted on a shaft m. The quadrant may be replaced by a freely moving vertical rack or by a biassed internally toothed wheel.
Patent GB-105692-A (GB)
IPC: F22B37/22
Abstract: 105,692. Shaw, C. M. Aug. 5, 1916. Water-tube boilers.-Relates to a boiler comprising sections built up of side drums connected bv banks of inclined curved tubes as described in Specification 10412/10. The lower drum F of the top section A is supported by a bracket K riveted to the drum and connected by a pin joint to a bracket J riveted to the lower drum E of the bottom section. The circular drum 0 may slide upon the bearers 8 supporting it upon the side columns M. The tube holes in the drums are so arranged that the tubes in one transverse row come opposite the spaces between the tubes in the next row. Baffles X, R resting on the tubes compel the gases to pass backwards and forwards across the tubes, as shown. An inclined baffle 2 B V prevents the bases from passing between the tubes to the uptake before passing across the upper bank. A feed-heater or a superheater T is arranged in an extension of the side of the boiler casing.
Patent GB-1351911-A (GB)
Title: Amino acid derivatives
IPC: C07F9/32
Filed: 1972-03-07
Abstract: 1351911 Derivatives and precursors for preparation of DOPA MONSANTO CO 7 March 1972 [8 March 1971] 10585/72 Heading C2C [Also in Division B1] 3-(3<SP>1</SP>,4<SP>1</SP>-Dihydroxyphenyl)-L-alanine is obtained by hydrolysis of the novel compound N- acetyl- - 3 - (4<SP>1</SP> - acetoxy - 3<SP>1</SP> - alkoxyphenyl)-L- alanine obtained by asymmetric hydrogenation of α-acetamide-4-acetoxy-3-alkoxy-cinnamic acid and/or a salt thereof, e.g. using a co-ordination catalyst comprising iridium, ruthenium, osmium, palladium, platinum or rhodium and an optically active phosphine or arsine ligand. The D-isomer of N-acetyl-3(4<SP>1</SP>-acetoxy-3<SP>1</SP>-alkoxyphenyl)-4-alanine is obtained as a by-product. The novel α-acetamide-4-acetoxy-3-alkoxycinnamic acid is prepared by mild hydrolysis of 2- methyl - 4 - (4<SP>1</SP> - acetoxy - 3<SP>1</SP> - alkoxybenzyl) - 5- oxazolone obtained from 4-acetoxy-3-alkoxybenzaldehyde acetyl glycine and acetic anhydride.
Patent GB-543147-A (GB)
Title: Improved product for use in covering or decorating floors, walls, furniture and the like
IPC: D06N7/00
Filed: 1940-06-19
Abstract: 543,147. Compound sheet materials. COMPTOIR DES TEXTILES ARTIFICIELS, June 19, 1940, No. 10590. Convention date, June 22, 1939. [Class 140] Compound sheet material comprises artificial threads having uniformly spaced swellings made as described in French Specification 803,144 and at least one layer of fabric, for example, viscose rayon or sheets of regenerated cellulose, cellulose derivatives or rubber hydrochloride. The layers are adhered by rubber latex or artificial resin. Layers of the artificial threads may be alternated with the other layers. The threads may be bound together by cotton threads. The product may be coated or impregnated with varnish or waterproofing or fireproofing materials or may be decorated. It may be used for covering or decorating walls, floors or furniture.
Patent GB-368111-A (GB)
Title: Improvements in or relating to the manufacture of pipes and tanks
IPC: B21C37/15
Filed: 1931-04-11
Abstract: 368,111. Making compound pipes and hollow-ware. KRAUSS, R., 24, Borsigstrasse, Breslau, Germany. April 11, 1931, No. 10691. [Classes 83 (ii) and 83 (iv).] Stamping.-Pipes or tanks are made from tubes, comprising rolled plate welded along the seam, by expanding one by fluid pressure into another of greater diameter and smaller length. A tube 3 is held between members 1, 2 which may form part of a testing machine, and fluid pressure is introduced at 6 to expand the tube into an outer one 4, the end portion 7, Fig. 2, being subsequently removed. A series of tubes may be expanded into the interior of a composite tube so formed. The seams of the tubes 3, 4 are preferably on opposite sides, and the diameter of the tube 3 is initially 20 per cent less than that of the tube 4. Tanks are formed in a similar manner by securing an endplate either to the final tube or to each tube before the operation, covers being afterwards provided.
Patent GB-1456238-A (GB)
Title: Fixing device
IPC: G03G15/20
Filed: 1973-11-07
Abstract: 1456238 Fixing electrostatic toner images OCE-VAN DER GRINTEN NV 7 Nov 1973 [8 Nov 1972 17 Sept 1973] 10735/76 Divided out of 1456237 Heading G2H Electrostatic toner images on copy material 10 are fixed by passage between two rollers 50, 60 forming a nip, one of the rollers 60 having a non- resilient or non-resilient cover and being heated, while the other roller 50 which contacts the images, has an elastically pliable cover with one or more circumferential grooves, each with a cooperating scraper or fixed or endless moving wire. The grooves are substantially fully closed in the nip, either by elastic deformation or by a combination of elastic deformation and wires extending through the nip. Both rollers may have grooves, which accomodate endless wires.
Patent GB-392723-A (GB)
Title: Improvements in or relating to reflecting devices
IPC: G02B5/126
Filed: 1932-04-14
Abstract: 392,723. Reflectors. JOBLING & CO., Ltd., J. A., Glass Works, Millfield, and STARKIE, D., 120, Durham Road, both in Sunderland. April 14, 1932, No. 10754. [Class 97 (i).] A reflecting device to be used as a sign or indicator comprises a glass body having one or more conical portions the apex angle of which is substantially a right-angle. The form shown in Fig. 6 comprises a body of clear or coloured glass having a single conical surface A and a convex face B around which is a flange C. Light entering the face B undergoes total reflection at the conical surface so that the device appears to be illuminated. One or more reflectors may be mounted on a plate D to form a sign, the face B being exposed at an aperture E and the reflector being secured to the plate by a ring F engaging the flange C. Figs. 9 and 12 show a form in which the reflecting surface comprises a cone A surrounded by a conical ring A<1>.
Patent GB-576650-A (GB)
Title: Improvements relating to the production of massive nickel for use as anodes
IPC: C25D17/10
Filed: 1944-06-05
Abstract: 576,650. Electrodeposition of nickel. MOND NICKEL CO., Ltd. June 5, 1944, No. 10799. Convention date, June 12, 1943. [Class 41] Nickel containing from 0.005 to 0.5 per cent. of sulphur is deposited from an acid electrolyte containing a nickel salt and a, compound of sulphur that is reduced to hydrogen sulphide at the cathode. The sulphur compound may be sulphur dioxide in solution or in gaseous form, or a normal or acid sulphite of an alkali metal and it may be added to the purified anolyte before it is passed into the cathode department of a diaphragm cell. The electrolyte may comprise nickel sulphate and chloride, sodium sulphate and boric acid and the compound of sulphur and if the deposited nickel contains from 0.03 to 0.5 per cent. of sulphur it may be used without further treatment as an anode in electrodeposition of nickel but if it contains from 0.005 to 0.03 per cent. of sulphur it may be heated to 1500 F. or 1800 F. in a non-oxidizing atmosphere to render it suitable. A small amount of copper and carbon may also be deposited with the nickel by introducing into the electrolyte a soluble copper salt and acetylene. Specifications 539,882, 553,781 and 569,444 are referred to.
Patent GB-682308-A (GB)
Title: Improvements in or relating to radio identification systems
IPC: G01S13/87
Filed: 1949-04-22
Abstract: 682,308. Radsolocation ; transponders. SPERRY GYROSCOPE CO., Ltd., and HANSFORD, R. F. April 20, 1950 [April 22, 1949], No. 10802/49. Drawings to Specification. Classes 40 (v) and 40 (vii). In a pulse radar system in which a response on a P.P.I. display due to a particular mobile craft is identified by modifying it by reply pulses transmitted by a responder carried by the craft, the radar pulses received at the craft are detected and applied through an amplifier, a multivibrator shaping circuit and a switch to modulate the carrier of a conventional communication transmitter operating in a different wave-band from the radar, the reply pulses being received and detected at the radar station by a communication receiver and applied through a short time constant circuit to the radar video stages where they are mixed with the detected radar echo signals. Due to the delay at the responder, the response due to the combined echo and reply pulses from the craft will be extended radially and thus readily identified. When the craft transmitter is used for communication purposes, the multivibrator output is disconnected by the switch which may also disconnect the H.T. supply from the amplifier and multivibrator.
Patent GB-432706-A (GB)
Title: Improvements in or relating to metal draft poles for use in connection with agricultural and like implements
IPC: A01D75/24
Filed: 1935-04-08
Abstract: 432,706. Draught appliances. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd., 259, City Road, London.- (International Harvester Co. ; 606, South Michigan Avenue, Chicago, U.S.A.) April 8, 1935, No. 10825. [Class 108 (ii)] In a draught pole of the kind constructed from a single metal sheet bent to a tubular form transverse reinforcing means are provided at one or more places, the reinforcing means comprising inner and outer concentric members connecting the opposite walls of the pole and serving as tension and compression members respectively. The pole tapers from the rear end and varies from an elliptical cross section at the rear to a circular cross section at the front. The concentric members 11, 12 are tubular and the outer member 11 is secured to the edges of transverse holes 10 while the inner member 12 has its ends flared and secured to the same edges. The single sheet 1 is bent round and its edges are formed as a rib of the construction shown at 4, 7, 8. The rib is discontinued at the front end and at the rear end is formed simply by bringing the two edges 2 together. The apertures 10 in the reinforced pole serves to receive bolts or pins for the attachment of the necessary equipment.