baber/WOPTO huggingface dataset:
Patent GB-862656-A (GB)
Title: Improvements in or relating to control circuits for thyratrons
IPC: H02P7/00
Filed: 1957-11-25
Abstract: 862,656. Control of D.C. motors. RESEARCH-COTTRELL Inc. Nov. 25, 1957 [Dec. 3, 1956], No. 36641/57. Class 38 (3). [Also in Group XXXV] A control circuit for a thyratron 10 for converting A.C. to D.C. comprises a saturable transformer 13 having a reactor winding 14 in series with a rectifier diode 16 and the grid of the thyratron, and a control winding 15 in series with an amplifier tube, both circuits being fed with a current synchronous with the supply current by windings 17, 18, whereby currents i 1 , i 2  flow in the circuits in alternate half cycles. Variation of the current i 1  by a signal voltage on the grid of the amplifier tube varies the degree of saturation of the transformer core, and dependent on this saturation the subsequent voltage pulse in the reactor circuit in the next half-cycle is absorbed to a greater or lesser degree so that the time and value of a trigger pulse E 2  on the grid of the thyratron is varied. Various biasing arrangements (Figs. 2-5, not shown) are described for the amplifier tube, which may be provided with a plate resistor, and may have two control grids to permit control by two signals. Alternatively two or more amplifier tubes may be provided in parallel or series. Positive or negative feedback from the output may be supplied to the cathode circuit of the amplifier tube. The arrangement may be utilized for a three-phase amplifier, each phase having a thyratron whose grid is controlled by a circuit as shown, the grids of the three amplifier tubes being supplied with a common D.C. signal. As shown in Figs. 13, 14, a pair of thyratrons each with a control circuit may be used to supply the field windings of a split-phase D.C. motor, a signal being applied across the grids of the amplifier tubes whose polarity determines the direction of rotation of the motor. This may be used for automatic flow control, wherein the fluid flow along a conduit 50 is controlled by a transducer 51 providing a voltage E which is added to a reference voltage F to provide a voltage G which is zero at the desired flow rate. This voltage G is fed to the arrangement of Fig. 13 the motor 40 controlling a valve 55 in the conduit. Specification 862,657 is referred to.
Patent GB-978273-A (GB)
Title: Improvements in and relating to filter press trays
Inventor: JONES SAMUEL
IPC: B01D25/21
Filed: 1962-09-27
Abstract: 978,273. Filter trays. EDWARDS & JONES Ltd. June 18, 1963 [Sept. 27, 1962], No. 36645/62. Heading B1D. A filter press tray comprises a frame 10, feed holes 21 and a thinner face 20 with ribs 24 which accommodate drainage ducts 30 and 31 with filtrate outlet holes 22 and 26 leading from the face. The ducts may discharge individually or into a collecting duct usually cored into the bottom of the frame.
Patent GB-302249-A (GB)
Title: Improved alloys
IPC: C22C19/05
Filed: 1928-12-12
Abstract: 302,249. Soc. Anon. Commentry- Fourchambault et Decazeville. Dec. 12, 1927, [Convention date]. Alloys.-A corrosion-resisting alloy comprises 21-49 per cent of nickel, 16-25 per cent of chromium, 1-5 per cent of manganese, up to 1 per cent of carbon, and 2-8 per cent of tungsten, or 2-5 per cent of molybdenum, or 2-8 per cent of tungsten and molybdenum together, the balance being iron. In some cases there may be added 0.2-1 per cent of vanadium, or 0.1-0.2. per cent of titanium, or 0.1-1 per cent of vanadium and titanium together; up to 10 per cent of cobalt may also be added. Specifications 140,507, 140,508, 159,492, and 159,857 are referred to. According to the Specification as open to inspection under Sect. 91 (3) (a) the alloy may contain 20-50 per cent of nickel, 10-25 per cent of chromium, and 0.5-8 per cent of tungsten or 0.2-5 per cent of molybdenum, or 0.2-8 per cent of tungsten and molybdenum together. This subject-matter does not appear in the Specification as accepted.
Patent GB-1104526-A (GB)
Title: Improvements in or relating to mechanical punches
Inventor: OLEY NICHOLAS RICHARD
IPC: B21D39/03
Filed: 1966-08-17
Abstract: 1,104,526. Punching; making electrical contacts; semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. 17 Aug., 1966, No. 36811/66. Headings B3A and B3W. A punch for placing an insert 7 cut from a sheet 3 into a sheet 4 comprises a hollow punch 1 which cuts the insert from the sheet 3 and a piston 6 which operates within the punch 1 to eject the insert which co-operates with a die 8 to form an aperture in the second sheet into which at least part of the insert is placed. The strip 3 is preferably solder and the strip 4 copper. The punch may be used to insert silver contacts into leaf springs. Reference has been directed by the Comptroller to Specification 776,373.
Patent GB-781315-A (GB)
Title: Improvements in wallboards
IPC: C04B18/26
Filed: 1954-12-20
Abstract: 781,315. Fibrous compositions. ELMENDORF, A. Dec. 20, 1954, No. 36844/54. Class 70. [Also in Group X] A non porous wallboard comprises a non- porous matrix of gypsum, Portland, magnesite, or other inorganic cement having wood strands embedded therein, the fibres of each strand being generally parallel to its length, the weight of the matrix exceeding the weight of the strands and the length of the bulk of the strands being between one-half inch and 6 inches, their width being very much less than their length. The wood strands 4 are preferably substantially straight and of about 0À01 inch thickness. In the surface layers a, b of the board the volume of cement exceeds the volume of the strands, whilst in the zone c between the zones a, b, the volume of the strands exceeds the volume of the cement. Preferably at least one face of the board is surfaced with a thin layer of cement completely free from fibres.
Patent GB-956106-A (GB)
Title: Cup type fuel filter
IPC: B01D35/027
Filed: 1962-09-28
Abstract: 956,106. Filters. FRAM CORPORATION. Sept. 28, 1962 [Dec. 4, 1961], No. 36913/62. Heading BID. A cup-shaped porous filter 13 is removably insertable in the neck 11 of a fuel tank 10, has an outwardly extending annular flange 16 at its open end, and yielding spacing means disposed at the under face of the flange to hold it slightly above the neck 11 of the tank, providing an air vent while the tank is being filled, but compressible under the clamping pressure of the cap so that a seal is formed between the top of the neck and the cap when the cap is screwed home. Thus dirt entering through the air vent in the cap (not shown) is retained in the filter. Preferably, the annular flange is itself formed of compressible material, e.g. fuel resistant rubber or other plastic material to constitute a sealing gasket, and the filter cup may be moulded of porous paper or porous plastic material or may be a fine wire screen. As shown, Figs. 3, 4, compressible lugs 17 constitute the yielding spacing means. Alternatively, Figs. 6, 7, the filter 131 has a flange 15 with a flat underside, and an annular corrugated metal washer 20, interposed between the flange and the neck of the fuel tank, constitutes the yielding spacing means.
Patent GB-1114927-A (GB)
Title: Fluid-pressure-operated telescopic prop assembly
Inventor: LAMPL FREIDRICH
IPC: E21D15/44
Filed: 1964-09-10
Abstract: 1,114,927. Hydraulic pit-props. DOWTY MINING EQUIPMENT Ltd. 26 Aug., 1965 [10 Sept., 1964], No. 37081/64 Heading E1E. A fluid-pressure-operated telescopic prop assembly includes an outer member 1, in which an intermediate member 6 is slidably, and having a piston 7, with which together with a base 3 it forms a first pressure chamber 15, an inner member 12 slidably mounted in the member 6, having a piston 13 and forming a second :pressure chamber 16 with it and the piston 7, a tube 19 carried by the piston 7, passing through the chamber 16 and slidable in the piston 13 to connect the chamber 15 with the member 11, having inlet means 42, 39, 41, 48 from which for prop extension, fluid can pass into the chamber 15 through the tube 19 and into the chamber 16 through a valve 23, 25, a first relief valve 45 to relieve excess pressure in the chamber 15 and a second valve 29 to do so in the chamber 16. In the member 6 is a non-return valve 22 for fluid to pass from the chamber 15 to the chamber 16, which is opened when the base 3 of the outer member 1 is contacted by the propection 26. The valve 29 at an end of the member 12 communicates with the chamber 15 through a portion 41.
Patent GB-996243-A (GB)
Title: Benztriazine derivatives and stable dye preparations containing same
Inventor: PIZON STANISLAW
IPC: C07D253/08
Filed: 1961-10-17
Abstract: The invention comprises compounds of the general formula <FORM:0996243/C2/1> wherein the nucleus A represents a benzene, naphthalene or anthracene nucleus containing at least one carboxyl or sulphonic acid substituent group, and optionally containing additional substituents selected from halogen atoms, nitro, carboxy aryl, and carboxy alkyl groups, and wherein the nucleus B represents a benzene, diphenyl or naphthalene group which may contain substituents selected from alkyl, alkoxy, aryloxy, alkylamino, arylamino, benzoylamino, nitro, dialkyl sulphonamido or diaryl sulphonamido groups or halogen atoms. They may be prepared by treating a compound of the general formula <FORM:0996243/C2/2> with nitrous acid in an acid medium.  Under the action of alkali the compounds of the invention are converted into diazoamines of the general formula <FORM:0996243/C2/3> wherein Me represents an alkali metal, which diazoamines will couple with naphthal "A.5" dyes in the presence of developing agents.ALSO:Cellulosic textiles are dyed by applying thereto a dry admixture of a naphthol A. S. compound and a compound of the general formula <FORM:0996243/D1-D2/1> wherein the nucleus A represents a benzene, naphthalene or anthracene nucleus containing at least one carboxyl a sulphonic acid substituent group, and optionally containing additional substituents selected from halogen atoms, nitro, carboxy aryl and carboxy alkyl groups, and wherein the nucleus B represents a benzene, diphenyl or naphthalene group which may contain substituents selected from alkyl, alkoxy, aryloxy, alkylamino, arylamino, benzoylamino, nitro, dialkyl sulphonamido or diaryl sulphonamido groups or halogen atoms, and developing the dye in situ.  The compounds of the above general formula under the action of alkali are converted into diazo amines of the general formula <FORM:0996243/D1-D2/2> wherein Me represents an alkali metal, which diazoamines couple with the naphthal AS compounds in the presence of developing agents, e.g. organic or mineral acids or steam, to dye the cellulosic fibre.
Patent GB-1514800-A (GB)
Title: Ducted fan engine oil disposal means
IPC: F02K3/04
Filed: 1975-09-11
Abstract: 1514800 Axial-flow fans; ducted-fan gas turbine engines UNITED TECHNOLOGIES CORP 11 Sept 1975 [12 Sept 1974] 37379/75 Headings F1C and F1J In a ducted-fan gas turbine engine, oil leaking past the support bearing of a fan blade 14 is collected in an annular recess 36 and conducted radially outwardly via a tube or, as shown, a drilling 38 to a point where it is vented into the portion of the air-stream which is discharged through the duct exit instead of being ingested into the engine.
Patent GB-310092-A (GB)
Title: Improvements in or relating to stuffing boxes and the like for preventing the escapeof fluid under pressure
IPC: F16J15/40
Filed: 1928-01-18
Abstract: 310,092. Schering-Kahlbaum, Akt.- Ges., and Baensch, W. Jan. 18, 1923. Divided on 307,681, [Class 122 (v), Stuffing- boxes &c.]. Cylinders.-In a two-stage compressor, compressible packings 26, 3 of the larger plunger are compressed by screws 37, set in the cylinder cover, and acting through a ring 36, compressible packing 35 and a follower 34 surrounding the cover.
Patent GB-929995-A (GB)
Title: Improvements in and relating to the drive of composite plants such as plants for producing blanks from double-faced corrugated cardboard web
Inventor: BARANY THOMAS ERNEST
IPC: B31B50/16
Filed: 1958-11-21
Abstract: 929,995. Cutting box blanks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 20, 1959 [Nov. 21, 1958], No. 37587/58. Class 31(1). A multi-station plant comprises a means driving machinery at a main work station, and driving through a unidirectional coupling other machinery at a following work station, while a workpiece proceeds from the main station to the following station, where it is subjected to a different operation, an auxiliary drive being provided to increase the speed at the following station as compared with the normal speed of the plant. The plant shown for producing box blanks from a cardboard web comprises a main electric motor MM which is provided with speed control means TG and drives through a gear-box G 1  a double-facer DF for continuously facing corrugated web, and also drives a slitter SL through a uni-directional clutch CL, and a gear-box G 2 . A transverse cutter TC is driven from a gear-box G 3  through a similar uni-directional clutch CL 2  and a gearbox G 4 . A separate drive for the slitter comprises an electric motor MS connected to the gear-box G 3  through an automatic clutch TC 1 . A separate drive for the transverse cutter comprises an electric motor MTC connected to the gear-box G 4  through a similar automatic clutch TC 2 . To allow for changing the blank dimension, a severing cutter is arranged after the double-facer DF. Normally, the motors MS and MTC are de-energized and the motor MM drives the double-facer, slitter and transverse cutter in synchronism. When changing of the blank dimension is desired, the continuity of the web is interrupted by the severing cutter, the speed of the motor MM is reduced to its minimum speed and the motors MS, MTC started, to take over the drive of the slitter and transverse cutter. A gap is thereby formed between the double-facer and the slitter and transversecutter stations which allows the slitter blades to be adjusted. Then the motor MS is deenergized and as soon as the speed of the slitter decreases to the creep speed at which the doublefacer is still operating, the slitter is again driven by the motor MM while the transverse cutter may continue to cut blanks from the severed web portion. When this portion has been exhausted, the motor MTC is de-energized and the speed of the transverse cutter falls until it is again driven by the motor MM. When all these stations are thus recoupled together, the motor MM can be accelerated again to the desired working speed.
Patent GB-1287343-A (GB)
Title: N-carbamoylethyl aromatic amine compounds
Inventor: LOFFELMAN FRANK FRED
IPC: C07C237/00
Filed: 1970-08-04
Abstract: 1287343 N-Carbamoylethyl aromatic amine compounds AMERICAN CYANAMID CO 4 Aug 1970 37677/70 Heading C4P [Also in Division C2] The invention comprises dyes having the general formula wherein Ar is benzene, biphenyl, or naphthalene; R 1  is 2-carbamoylethyl amino or bis-(2-carbamoylethyl amino); R 2  is amino, nitro, hydroxy or R 1 ; and R 3  is hydrogen, halogen, alkyl, alkoxy, amino, nitro or R 1 . The compounds are prepared by various methods, e.g. by reacting an aromatic amine or nitroamine with acrylamide in acetic acid at 50-120‹ C., to replace one or more of the amino hydrogen atoms with a carbamoylethyl group; by reacting an aromatic nitroamine with acrylamide at 25-145‹ C. in a non-polar non-hydroxylated solvent in the presence of a basic catalyst to give a product having a nitro group and at least one propionamide group, or by reacting a halo substituted aromatic compound with amino propionamide in an alkanol. Preferably the groups R 1  and R 2  are ortho or para to each other. The compounds of Formula I may also be used as intermediates in the synthesis of dyes, e.g. by diazotizing compounds containing an amino group and coupling with a coupling component. The compounds of Formula I and their derivatives are used for dyeing keratinaceous fibres particularly hair, with or without other colour modifiers and additives.
Patent GB-1352985-A (GB)
IPC: F16B21/07
Filed: 1972-08-14
Abstract: 1352985 Stud and socket fastening GULTON INDUSTRIES Inc 14 Aug 1972 [23 Aug 1971] 37755/72 Heading E2B A fastener assembly 10, Fig. 1, comprises a fastener 12 having a shank 18 and a head 16, and a member 14 which receives the shank 18, the latter having a polygonal cross-section with alternate plain and serrated faces 20, 22, and the member 14 having resilient fingers 34, 36, Fig. 3, with the end portions 38, 40 thereof at least partially defining an opening for receiving the shank 18. The member 14 is provided with mounting holes 28, Fig. 1, through which rivets 47, 48 are passed to secure the member 14 to a panel 44 as shown in Fig. 3. A sheet 52 is held against the head of the fastener by a pressed on collar 56 and the shank 18 is positioned in the member 14, the end portions 38, 40 of the fingers 34, 36 being adjacent the plain surfaces 20 of the shank 18. The fastener is then rotated to the position shown in Fig. 4 to effect the clamping of a gasket 50 between the panel 44 and the sheet 52, the serrations engaging the end portions 38, 40 of the fingers 34, 36 and, being inclined, generating a screw or wedging action. In a modification a fastener head 16a, Fig. 7, is formed as a thumb screw and a member 14a has mounting holes 28a in a portion 24a thereof, the latter being substantially at right angles to a portion 58 thereof having fingers 34a, 36a therein. The member 14 may be replaced by member 14b, Fig. 8, or member 14c Fig. 9.
Patent GB-788448-A (GB)
Title: Improvements in and relating to electric storage battery carriers
Inventor: WALKER ROY LAWTON
IPC: H01M2/10
Filed: 1954-12-31
Abstract: 788,448. Batteries. PRITCHETT & GOLD & E.P.S. CO., Ltd. Dec. 9, 1955 [Dec. 31, 1954], No. 37768/54. Class 53. A monobloc storage battery b is secured to a separate rigid base e by means of bolts d engaging inserts c moulded in the battery casing and rigid base is mounted on a supporting structure by integral lugs h. The bolts d, which may be replaced by nuts, are filled with resilient washers g. The base e, which may be of glass fibrereinforced polyester resin, aluminium or light alloy, has a protecting flange e<SP>1</SP> spaced from the battery container and brackets i to support a handle k.
Patent GB-772765-A (GB)
Title: Improvements in gas-sealed liquid systems
Inventor: BELL ALAN
IPC: F16J15/40
Filed: 1954-12-31
Abstract: 772,765. Stuffing-box substitutes. FOSTER WHEELER, Ltd. Nov. 17, 1955 [Dec. 31, 1954], No. 37800/54. Class 122 (5). [Also in Group XIII] In a system in which liquid is maintained under pressure by gas supplied to an expansion header tank, the tank is disposed at the point of highest pressure in the liquid and seals in the system are packed by gas fed from the tank. In the arrangement shown liquid sodium is circulated through a heat exchange circuit by a pump 10 under pressure maintained by a supply of inert gas, such as argon or nitrogen, to a header tank 12 placed at the discharge of the pump which is preferably arranged at the point of maximum static head. Gas is fed from the tank to sealing points in the system and valves 16 and 18 are provided so that gas may be fed directly to the sealing points through a line 20 when the pump is not running.
Patent GB-966266-A (GB)
Title: Production of aralkyl esters dicarboxylic acids
Inventor: KAY RONALD WILLIAM
IPC: C07C69/60
Filed: 1961-10-21
Abstract: Esters are prepared by heating together an aralkyl halide and an aqueous solution of an alkali metal salt of a dicarboxylic acid in the presence as catalyst of a quaternary ammonium salt. Ammonium or alkali metal salts may be phthalate, isophthalate, terephthalate, succinate, sebacate, maleate, adipate, or isosebacate and the catalyst may be a quaternary ammonium salt of trimethyl- or triethylamine with an alkyl or aralkyl halide. Examples describe the preparation of dibenzyl phthalate.
Patent GB-1355772-A (GB)
Title: Device for the fixation of bearing stands on machine beds
IPC: F16M7/00
Filed: 1972-08-14
Abstract: 1355772 Machine supports W & T AVERY Ltd 14 Aug 1972 [13 Aug 1971] 37817/72 Heading F2X A dynamic balancing installation includes a pair of spaced-apart structural members (only one shown) fixedly secured to a foundation 20 by bolts 11, 12, the heads of which are accommodated within recesses 15, 16 formed in the respective structural member. The installation also includes a bearing stand, of which only part of an oblique strut 1 is shown, releasably clamped to each structural member by screwthreaded bolts 2, 3. The recesses 15, 16 are each closed by a respective cover-plate 17, 18 clamped between opposed faces of the respective structural member and the bearing stand. The screw-threaded bolts 2, 3 pass through holes in a fixing element 1a on the strut 1 and have nuts 4, 5 screwed to them. The nuts 4, 5 are each formed with obliquely extending lateral shoulders which engage in corresponding grooves 7, 8 formed in wall portions 13, 14 of each structural member. The cover-plates 17, 18 seal the recesses 15, 16, and hence the fixation points for the structural members, from the interior of a vacuum chamber inside which the bearing stand is mounted. This chamber is bounded by a shell 10a, 11a which forms the machine bed together with the structural members. The bearing stand includes a second strut (not shown) extending perpendicularly to the strut 1 and clamped to a structural member in an identical manner to the strut 1.
Patent GB-912046-A (GB)
Title: A photo-sensitive detecting system
IPC: H01J40/14
Filed: 1959-11-09
Abstract: 912,046. Photo-electric detection systems. GURI, A. V. Nov. 9, 1959 [Nov. 8, 1958], No. 37926/59. Class 40 (3). A detecting system comprises at least two  photo-cells arranged in a differential circuit. If an object wholly or partially interrupts the light falling on one of the cells C or D a pulse passes to a phase splitter J, which feeds a rectifier M. The output of the rectifier is a pulse which has the same polarity whichever cell is interrupted, and this actuates an electronic relay device Q. This in turn actuates a relay S which controls a visible or audible indicator and, if required, provides a control signal.
Patent GB-1034349-A (GB)
Title: Improvements relating to power assisted steering or like gear
Inventor: ADAMS FREDERICK JOHN
IPC: B62D5/083
Filed: 1964-09-18
Abstract: 1,034,349. Power steering. HYDROSTEER Ltd. May 19, 1965 [Sept. 18, 1964], No. 38164/64. Heading B7H. In a power-assisted steering mechanism, which may be a rack-and-pinion mechanism, in which the power assistance is controlled by a rotary valve, which may be of the open or closed centre type, the functioning of which is by the relative rotation of two parts through the intermediary of a resilient member, e.g. a torsion bar, means are provided (a rotary member 7 having an eccentric 7A engaging a slot 6 in one part 5, Fig. 1, not shown), for moving one valve part axially relatively to the other, the co-operating valve ports and lands being so shaped, as indicated by the lines 4C, 5B in Fig. 3, or 9A, 9C, 10A, 10C and 10B in Fig. 4, whereby the axial movement in one direction or the other exposes a greater or less exposure area between the ducts for the transmission of fluid in one direction or the other, so that the adjustment may provide for a fluid balance, or for a bias of pressure in one direction or the other. The adjustment device (7) extends beyond the valve casing and may be operated locally or by remote control.