baber/WOPTO huggingface dataset:
Patent GB-1179891-A (GB)
Title: Improvements in or relating to Gas Generators
Inventor: MAIZEL LAZAR MOISEEVICH
IPC: F02B71/06
Filed: 1967-02-14
Abstract: 1,179,891. Free piston gas generators. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT ZHELEZNODOROZHNOGO TRANSPORTA. Feb. 14, 1967, No.7028/67. Heading F1Q. In a free piston gas generator wherein at least one pair of oppositely acting free pistons 5 have small diameter ends slidable in a central diesel engine cylinder 1 and large diameter ends continuously subjected to the pressure of gas in buffer spaces 3 for the return stroke, the scavenging air is compressed in the annular spaces 2 between the small and large piston ends and the spaces communicate through passages 8 with auxiliary chambers 9 containing pistons 10 movable automatically to vary the effective volume of the compression chamber so as to maintain the piston strokes constant. The pressure of the gas in the buffer spaces 3 is also automatically controlled to maintain the stroke constant. If the fuel supply to the generator is increased the stroke of each piston 5 also increases, whereby the amplitude of rotary oscillation of a synchronizing cam-shaft 6 driven by racks 7 movable with the pistons 5, Fig. 2 (not shown) similarly increases. The increased angle of turn of the cam-shaft 6 causes cams 36, 37 thereon to intermittently open pilot valves 31, 32 to thus direct air from a bottle 38 to the respective chambers 23, 29 of distributer valves 19, 25. Pressurization of the chamber 23 causes movement of a spring-loaded spool 20 to a position which supplies hydraulic fluid to the chamber 16 of an hydraulic cylinder 14 containing a piston 13 connected by a rod 12 to the auxiliary pistons 10 which thereby move to decrease the volume of the auxiliary chambers. The pressurizationof the chamber 29 connects the buffer chambers 3 to an annular gas receiver 4 receiving the air compressed by the pistons and supplying scavenging air to the engine cylinder 1. When the fuel supply is decreased the pilot valves 31, 32 do not open and air in the chambers 23, 29 bleeds away through orifices 24, 30. If the fuel supply, and thus the load, is at a minimum the pistons 10 uncover ports 11 to connect the auxiliary chambers to atmosphere.
Patent GB-932000-A (GB)
Title: Improvements relating to gas turbine engines
Inventor: URMSTON BERTRAM HARRY
IPC: F04D27/02
Filed: 1962-02-22
Abstract: 932,000. Gas-turbine plant. ROLLSROYCE Ltd. Feb. 22, 1962, No. 7032/62. Class 110 (3). A gas-turbine engine includes compressor means which cause dust to concentrate in the part of the air flowing adjacent the radially outer wall of the duet 22 and at least one hollow compressor outlet guide vane 10 whose interior communicates with the duct solely through one or more passages 33, located in the radially inner wall of the duct 23 so that the dust-free air may be conducted to the exterior of the engine for ancillary purposes. Air flowing from compressor 5 is straightened in the main annular duct 9 by the hollow guide vanes 10, of aerofoil cross-section, which are located at the point of maximum compression. Each vane is divided into three radial ducts by walls 15, 16. The dust-free air flows through apertures 33, chamber 35, inner manifold 15, apertures 18, the ducts in vanes 10, outer manifold 16, apertures 16a and 16b and pipe 38 to pressurize the pilots cabin.
Patent GB-586836-A (GB)
Title: Elastic fluid pumps and turbines
IPC: F04D29/66
Filed: 1943-05-04
Abstract: 586,836. Centrifugal pumps. NEWTON, E. P. (Turbo Engineering Corporation). May 4, 1943, No. 7065. [Classes 110 (i) and 110 (iii)] [Also in Group XXXII] To reduce vibration in the blades of centrifugal pumps and the like, the rotor is divided by a radial plane into parts 158,160, Fig 15, so that the natural vibration of the two blade parts have different periods. Frictional contact between the tips of the blade parts is secured by a slight undercut 162 ; the closing pressure may be provided by the fluid being pumped. A disc 166 may provide a damping friction on the discharge ends of the blades. Instead of the undercut, the rotor portions may be divided by thin inserts of an artificial resin, or be linked by small steel balls housed in complementary recesses in the meeting faces of the vanes. In another form, the rotor is not divided and small bodies such as rivets or clips, are attached with a slight play to non-nodal parts of the vanes. To reduce the cause of vibration, supports or vanes in the inlet and outlet channels, for example, the vanes 12, Fig, 2, are arranged out of line with the vanes 6.
Patent GB-1062296-A (GB)
Title: Improvements in or relating to ion exchange apparatus
Inventor: WACE PETER FREDERICK
IPC: B01J47/10
Filed: 1965-02-18
Abstract: 1,062,296. Countercurrent flow ion exchange. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 10, 1966 [Feb. 18, 1965], No. 7087/65. Heading B1J. A single stage for a countercurrent flow ion exchange apparatus, for example stage 100 in the drawing, comprises a column 101 having a liquid inlet means 108 on its bottom, a liquid outlet means 107 in its upper portion, a resin discharge tube 109 within the column extending upwardly from near the base of the column and passing out of the column at a position below the top of a fluidised resin bed within the column, and a resin inlet tube 110 terminating slightly above the top of the resin bed. The resin discharge tube and the resin inlet tube may have internal diameter 5-10 times the mean size of the resin particles, the column may have internal diameter at least 100 times the mean size of the resin particles. The single stage may be included in apparatus for effecting continuous ion exchange processes; the apparatus may have a closed cycle for resin flow in which the resin is circulated alternately through a liquid treatment section and a resin regeneration section. In Fig. 1, 100 is a last deionization stage and 200, 300 are regeneration stages. Liquid entering the beds from inlets 108, 208, 308 fluidises the resin in the respective beds. The fluidised resin expands in the discharge tubes 109, 209, 309 and overflows into the preceding beds. A flow control device may be provided to prevent mixing of liquid leaving a bed with liquid transferred with the resin from a subsequent bed. Thus in stage 100, the height of weir gate 119 is automatically controlled in response to the pressure differential registered by pitot head 116 to ensure a net upward flow of liquid across the surface 106 of the resin bed.
Patent GB-758276-A (GB)
Title: A new antibiotic totomycin
Filed: 1954-03-11
Abstract: <PICT:0758276/IV(a)/1> A new antibiotic is produced by cultivating streptomyces crystallinus (described) or a mutant thereof, in an aqueous nutrient medium containing essential mineral salts and assimilable carbohydrate and nitrogeneous substances under aerobic conditions at a pH of 6.5 to 8.0, and preferably 7.5, and a temperature of 24 DEG  to 35 DEG  C., preferably 28 DEG  C., for 40 to 80 hours and especially 60 to 65 hours.  Specified carbohydrates are starch, dextrin, maltose, dextrose, zylose, galactose and glycerol; nitrogen compounds are amino acids, casein and casein hydrolysates, soyabean meal, peptones, e.g. soya peptone, corn steep liquor, meat extracts, yeast extract, skim milk and distillers solubles; inorganic substances are sodium, potassium, calcium and magnesium in the form of chlorides, sulphates and phosphates and trace elements, e.g. boron, molybdenum and chromium.  The antibiotic is recovered from the fermentation broth by (a) solvent extraction, or (b) adsorption on a hydrated magnesium silicate.  Solvent extraction is by means of a water-immiscible solvent such as n-butanol, sec-butanol, acetone, amyl acetate or amyl alcohol, the broth first being adjusted to pH 6.9 to 7.9 and preferably 7.5.  The pH of the extract is adjusted to pH 1.7 to 3.3 and preferably 2.2 to 2.5 by a mineral acid such as sulphuric acid, water is separated by adding a water-immiscible non-solvent such as n-pentane, chloroform, carbon tetrachloride or hexane.  The aqueous phase is mixed with a water wash of the residual extract, concentrated and acetone added to precipitate the antibiotic.  Alternatively, the fermentation liquor is adjusted to pH 1.7 to 3.3 and preferably pH 2.2, extracted with the solvent, the extract neutralized, n-pentane added to separate an aqueous phase which is treated with acetone to precipitate the antibiotic.  In the adsorption purification, hydrated magnesium silicate is stirred in the fermentation broth which is filtered with a filter aid.  The filtrate at pH 7.0-7.5 is treated with activated carbon and the antibiotic eluted therefrom with n-butanol, methyl ethyl ketone or ethyl acetate, all of which are water-saturated. Further purification is by adsorption or partition chromatography. The antibiotic has an empirical formula C21H29NO11; it is soluble in water, methanol, ethanol, beta methoxyethanol, 1,4-dioxane, n-butanol, formamide and dimethylformamide; sparingly soluble in acetone, ethyl methyl ketone, diethyl ketone and watersaturated ethyl acetate; insoluble in chloroform, ether, benzene and petroleum ether; Rf value=0.96 (n-butanol saturated with water); infra-red absorption spectrum in mineral oil exhibits maxima at approximately the following wavelengths 3400, 1725, 1660, 1620, 1283, 1215, 1170, 1137, 1070, 1028, 964, 915, 850, 816 and 722 cm-1.
Patent GB-749834-A (GB)
Title: Relay valve particularly for incorporation in electro-pneumatic system
IPC: F15B13/042
Filed: 1953-03-14
Abstract: 749,834. Fluid-actuated valves. DUNLOP RUBBER CO., Ltd., and TREVASKIS, H. W. Jan. 26, 1954 [March 14, 1953], No. 7121/53. Class 135. A relay valve for controlling the flow of air under pressure to the combustion chamber of a starter motor of a gas turbine engine comprises a movable, tubular, valve member 12 having a knife-edge coacting with a seat 16 and controlling ports 11 in a stationary member 10, and a spring-loaded piston 18 connected by a rod 19 with the valve member. High-pressure air enters at 5 and may pass, when a solenoidactuated valve (not shown) is energized, through a connection 6 and a pressure-reducing valve (not shown) to a connection 8 opening to an operating chamber 3 above the piston so as to open the relay valve. The pressure in the outlet chamber 4 of the relay acts on the lower face of the piston in opposition to the reduced pressure so as to regulate the delivery pressure. Specification 704,342 is referred to in the Provisional Specification.
Patent GB-825018-A (GB)
Title: Explosive type circuit interrupting device
IPC: H01T1/14
Filed: 1957-03-04
Abstract: 825,018. Lightning arresters. McGRAWEDISON CO. March 4, 1957 [Nov. 9, 1956], No. 7137/57. Class 38 (4). In an explosive-type interrupting device for disconnecting the earth lead of a lightning arrester in the event of the arrester not clearing a fault, the explosive is mounted so that it is shielded from the arc. An arrester 2, Fig. 1, of known type, has an explosive interrupting device 1 mounted at its earthed end comprising an insulating housing 22, Fig. 2, having an upper electrode 15 secured by a screw 18 and spaced by gasket 21 and a lower electrode 30 in continuity with earthed conductor 35 through being clamped by a metal ring 33, washers 36, 39, 40 and bolt 37, the assembly being protected by an insulating shroud 41. Electrode 30, Fig. 3, has a counterbored hole 46 to receive an explosive cartridge 47, 51 with a stepped portion 48, 50 to protect the cartridge from the arc 55, 56. In the event of the arrester not clearing the fault, the heat developed by the arc detonates cartridge 47, 51 which blows away the lower portion of the device 1, which is arranged to have a fragile section for this purpose. The explosive may be in cartridge form, or disposed loose in bore 46 necessitating hermetic sealing of device 1. Other arrangements of cartridge mounting and arc chambers are described.
Patent GB-379996-A (GB)
Title: Improvements in and relating to electric gas blast switches
IPC: H01H33/83
Filed: 1932-03-10
Abstract: 379,996. High-tension switches. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitats-Ges; 2, Friedrich Karl-Ufer, Berlin.) March 10, 1932, No. 7211. Convention date, March 10, 1931. [Class 38 (v).] In a gas-blast switch in which compressed gas is admitted to the switch from a reservoir by a single valve for the dual purpose of opening the switch contacts and extinguishing the arc, means are provided responsive to the circuit current to close the valve as soon as the arc is extinguished and thereby to avoid waste of gas pressure, and a reserve of gas pressure is maintained for ensuring the completion of the separating movement of the contacts. As shown, the single valve b is opened electromagnetically on energization of a coil supplied from the main circuit. This valve admits pressure from the container a to the switch chamber d and to the cylinder h containing the piston g. The piston operates the switch to the open position and the gas pressure, escaping between the separated contacts f, e, extinguishes the arc. With the circuit broken, the opening coil of the valve is deenergized and the valve closes. The resulting withdrawal of pressure from the supply pipe i to the cylinder h causes a valve m to close thereby segregating an adequate supply of pressure gas in the cylinder to ensure completion of the opening movement. This supply may be increased by including a small reservoir k in the supply connection.
Patent GB-382856-A (GB)
Title: Improvements in or relating to carburetters for internal-combustion engines
IPC: F02M3/04
Filed: 1932-03-10
Abstract: 382,856. Spray carburetters. SCHMID, K., 3, Bayernallee, Charlottenburg, Berlin. March 10, 1932, No. 7226. [Class 7 (iii).] The intake tube of a carburetter is connected at a point in front of the throttle with the float chamber prior to or simultaneously with a closing movement of the throttle, by a device actuated by movements of the throttle, whereby negative pressure is transmitted to the float chamber and the supply of fuel restricted, said connection being interrupted during the opening movement of the throttle. The intake tube a, Fig. 1, is provided with a nozzle q having various apertures r connected by means of flexible tubes p, o and a slide valve t to the float chamber d. The slide valve comprises a piston s connected to the throttle actuating rods k, i, and a casing t connected to the throttle rods i, h. During opening movements of the throttle rods k, i the piston s first moves to the right and interrupts the connection between the tubes p, o and then moves the valve casing t to actuate the throttle. Similarly during closing movements of the throttle, the tubes p, o are put into connection before the throttle is moved, whereby the floatchamber pressure is diminished and the fuel flow to the jet b diminished. In a modification the slide valve is not interposed in the control rod i, but is actuated by a separate rod connected to the arm h. In a further modification, Fig. 3, the orifices r<1> and tube p<1> are formed integrally with the intake tube a. The float chamber d is connected by a flexible tube o<1> to a passage t<1> formed in the segment y, which segment is mounted loosely on the throttle spindle g and is moved frictionally by a spring-loaded ball w<1> in the throttle arm h<1>, the movement of the segment being limited by a stop z. The passage t<1> terminates in an aperture which coincides with the end of the passage pl for that position of the segment y which it assumes upon closing movements of the throttle as in Fig. 3, and the connection is broken upon opening movements of the throttle.
Patent GB-540258-A (GB)
Title: Improvements in or relating to electric switches of the rotary distributing type
IPC: H01H19/62
Filed: 1940-04-22
Abstract: 540,258. Rotary switches. EDISON SWAN ELECTRIC CO., Ltd., and NORMAN, E. W. April 22, 1940, No. 7239. [Class 38 (v)] A rotary switch which can be readily adjusted to close a plurality of circuits in any. desired sequence or combination comprises a number of insulating discs 6 mounted on a rotatable shaft 1 and carrying on their peripheries selectively-arranged contacts 8 each adapted to bridge two fixed contacts 14, 15 at an appropriate position of the shaft 1. The shaft 1 is of polygonal section and the discs 6 have holes of corresponding shape enabling them to be placed on the shaft in different angular positions. Each disc has slots 7 round its periphery adapted to receive the contacts 8 which are in the form of short rods. Insulating discs 9 are also arranged on the shaft 1 to separate adjacent discs 6 and a spring catch, Fig. 3 (not shown) engaging teeth of a wheel on the shaft determines the angular positions of the shaft.
Patent GB-106337-A (GB)
Title: Improvements in Endless Band Grinding and Polishing Machines.
Inventor: TOWNSEND CHARLES RALPH
IPC: B24B21/00
Filed: 1916-05-23
Abstract: 106,337. Townsend, C. R. May 23, 1916. Band apparatus.-In endless-band grinding and polishing machines of the kind in which the band runs on end pulleys and over a bed, the bed is made adjustable transversely in relation to the hand so that the edge of the bed may be set to the edge of the band. The frame of the machine is provided with slotted lugs 2, Fig. 1, and the bed C is formed with corresponding lugs C<2> tapped to receive clamping-screws 3. In the modification shown in Fig. 4, which is an horizontal section through the bed, the lugs 2 are pivoted to the frame and one pair of them is adjustable towards and from the bed. This construction provides for varying the inclination as well as the lateral position of the bed. The flat bed may be replaced by a convex one as shown in dotted lines in Fig. 1.
Patent GB-733250-A (GB)
Title: Improvements in or relating to crystal triode circuits
IPC: H03F3/26
Filed: 1953-03-17
Abstract: 733,250. Transistor amplifying circuits. GENERAL ELECTRIC CO., Ltd., and MISSEN, J. I. Feb. 24, 1954 [March 17, 1953], No. 7368/53. Class 40 (6). In an amplifier comprising transistors 1, 2 fed in push-pull, the emitters are biased to pass heavy current and the collectors are fed with current from a supply 3 through separate inductors 8, 10 and resistors 9, 11. The load 14 is arranged across the inductors and resistors and is isolated for D.C. by capacitor 15, a blocking capacitor 13 in the input load isolating the two emitters for D.C. Due to the heavy collector current, the collector-base potential is low and dissipation remains low. In one half cycle of input current, the collector current in transistor 1 is reduced and current flowing through the path 8, 9 is diverted through the load 14 and the collector of transistor 2. In the succeeding half cycle the action of the transistors 1, 2 is interchanged.
Patent GB-104276-A (GB)
Title: Improvements in or relating to Spring Mountings for Motor and other Vehicles.
IPC: B60G11/14
Filed: 1916-05-24
Abstract: 104,276. Birmingham & Midland Counties Transport Co., and Ralls, G. E. D. May 24, 1916. Connexions applicable generally for compresive springs.-In a spring-suspension for motorvehicles, the position of a vertical lever m is controlled by springs s, both springs being compressed by a movement of the lever m. The springs s are carried by a rod p which slides in a fixed hollow boss q. The springs bear against plates t atttached to sleeve u encircling the rod p and disposed adjacent to the bifurcated end of the lever m. Fibre or rubber buffers v may be provided between the plates t and the boss q.
Patent GB-693549-A (GB)
Title: Improvements in or relating to bushings for abrasive wheels
IPC: B24D18/00
Filed: 1952-03-21
Abstract: 693,549. Abrasive wheels. CARBORUNDUM CO. March 21, 1952 [March 24, 1951], No. 7420/52. Class 60. [ Also in Group V] A bushing of organic resinous material is formed in situ within the mounting or arbor hole of an abrasive wheel, the bushing being formed by injection, jet, or transfer moulding. Fig. 1 shows a grinding wheel 4 centered about a core pin 9 by three devices 10. The bushing 22 is formed between the wheel and the core pin by injecting material through nozzle 19 and sprue bushing 14. The material may be thermoplastic or thermosetting resins or cellulose derivatives.
Patent GB-328730-A (GB)
Title: Improvements relating to the ornamentation of fabrics, paper and other materials
IPC: B41F15/08
Filed: 1929-03-07
Abstract: 328,730. Lowe, W., and Fleuret Fabrics, Ltd. March 7, 1929. Bronzing and the like.-In a machine, for ornamenting textile fahries, paper, leather, &c., adhesive is applied to the material by means of a stencil, cylinder, so as to produce a design, and a powder, such as powdered cotton, wool, silk, or metal, is then applied to the adhesive by means of a rotating perforated cylinder, and is consolidated on the fabric by pressure. The fabric passes from a roller a over tension bars b, c, and between a stencil roller d and a, drum e. Adhesive is fed to the stencil from a duct f, having doctor-blade elements contacting with the interior of the stencil. The stencil and the drum e are positively driven. The fabric then enters a box or easing g, and passes beneath a rotating perforated cylinder h containing the powder. The powder is pressed into the material by a roller i, and the material then passes over heated drying- rollers j, k, l, m. Loose powder is removed by a brush n, and is exhausted through a duct o. In a modification adapted to ornament both sides of the material, the adhesive is caused to penetrate the fabric, the stencil being supported at its edges only. The powder is applied to both sides of the fabric by two distributing-cylinders acting in succession.
Patent GB-1214352-A (GB)
Title: Improvements in and relating to composite boron filaments
IPC: C22C47/04
Filed: 1968-02-15
Abstract: 1,214,352. Silicon carbide coated boron filaments. UNITED AIRCRAFT CORP. 15 Feb., 1968 [24 Feb., 1967], No. 7447/68. Heading C1A. [Also in Division C7] A composite filament for use in fibre re" inforced articles comprises a filamentary substrate coated with amorphous chemically deposited boron upon which is adhered a thin protective coating of stoichiometric silicon carbide. The silicon carbide layer is preferably formed to the minimum thickness which will effect a diffusion barrier, e.g. between 3-81 x 10<SP>-4</SP>-5À08 x 10-4 cm. (0À15-0À2 mil) in thickness. The coating process is as described in Specification 1,214,351 and the filament may be incorporated in a matrix of Al, Ti, Mg or of a resin.
Patent GB-1039533-A (GB)
Title: A two-stroke engine
Inventor: MANTZEL ALBRECHT-WOLFGANG
IPC: F02B75/02
Filed: 1963-02-25
Abstract: 1,039,533. Two-stroke engines. INPACO TRUST. Feb. 25, 1963, No. 7497/63. Heading FIB. In a two-stroke crankcase compression engine having at least one pair of cylinders 1, 2, in opposed or V relation, a common crankcase for the pair of cylinders is divided into two chambers by a rotary sealing member 11 on the crankshaft. The air or combustible mixture is fed to the separate crankcase chambers through inlet 15, Fig. 1 (not shown) under the control of the member 11. A charge pump 5, Fig. I, (not shown) associated with each pair of cylinders, is actuated by an eccentric on the crankshaft, and has opposite sides of its piston in communication with the separate crank chambers which are connected through ports 13, 14, and transfer passages to the associated cylinders. The complete crankcasing is formed by two identical shell halves 17.