baber/WOPTO huggingface dataset:
Patent GB-447498-A (GB)
Title: Improvements in or relating to the production of substances of hormone action
Filed: 1934-11-26
Abstract: Ketonic by-products possessing the nucleus of the male sex hormone and obtained in the course of the production of the male sex hormone are treated to yield unsaturated halogen ketones by a process comprising halogenation, treatment with ketone reagents, isolation of the ketonic portion and separation of the free halogen ketone.  From these halogen ketones, saturated or unsaturated male sex hormones are produced by replacement of the halogen atom by the hydroxyl group and if desired hydrogenation. The two latter steps may be effected in either sequence.  Other starting materials than the urine of male individuals may be used for isolating the chlorketones possessing the nucleus of the male sex hormones, such for example as crude extracts obtained according to the method of Funk.  Suitable ketone reagents for use in extracting the chlorketone are semicarbazide, hydroxylamine, and phenylhydrazine.  The preferred halogenation reagent is alcoholic hydrochloric acid, but other hydrohalic acids may be used.  The hydrogenation is preferably carried out by a catalytic process using a metal such as palladium as the catalyst. The substitution of the hydroxyl group for the halogen is preferably effected by heating in a bomb tube with alcoholic acetic acid in the presence of potassium or other acetate, or in general by the use of salts of carboxylic or sulphonic acids.  However, other methods may be employed such as directly exchanging hydroxyl for chlorine or by introducing intermediate substituents such as the ester group or the amino group.  Ester formation may be either preceded by or followed by hydrogenation.  When esters are formed these may be purified by fractional sublimation in a high vacuum. In the de-halogenation process by-products consisting of unsaturated hydroaromatic ketones are formed.  In an example, by-products from the production of androsterone from male urine are halogenated using alcoholic-aqueous-hydrochloric acid, hydrogenated using a platinum catalyst, converted into the semicarbazone, the ketone regenerated by dilute acids, hydroxylated in a bomb tube with acetic acid and potassium acetate, purified by fractional sublimation in a high vacuum, and hydrolyzed to androsterone with methyl alcoholic potassium hydroxide.  A sample has been furnished under Sect. 2 (5) of dehydroandrosterone prepared by treating the chlorketone of the above example in a bomb tube with benzoic acid and potassium benzoate, crystallizing the resulting dehydroandrosterone benzoate from alcohol, and saponifying with caustic potash. Specification 390,441, [Group VI], is referred to.
Patent GB-403519-A (GB)
Title: Means for measuring the growth or production of hair
IPC: A61B5/107
Filed: 1932-12-01
Abstract: 403,519. Measuring the density of growth of hair. NESSLER, C., 10, East 49th Street, New York, U.S.A. Dec. 1, 1932, No. 34060. Convention date, Oct. 27. [Class 81 (ii).] Mechanism for ascertaining the density of the growth of hair comprises means for receiving a bunch of hair growing in an area of definite size upon the scalp, means for compressing the confined bunch of hair transversely of its length in the receiving means and recording means controlled by the compressing means for indicating any variation in the density of growth. The frame of the device comprises a strip of metal 1 doubled on itself to provide flat parallel members 2, 3. The member 3 at one end is formed into a V-shaped fork 4 in which the hair from a selected definite area of the scalp is gathered. The fork 4 communicates with parallel slots 5, 7 arranged in the members 2, 3 respectively. A manually operated sliding member 10 is detachably mounted in the slots 5, 7, which it engages by means of projections 11, 12. A recording means is detachably mounted on the frame 1 by means of inwardly projecting lugs 31, 32. The recording means comprises a pair of manually operated rollers 16, 17 between which are mounted a graduated record sheet 14 which passes over a supporting plate 27. A marking arm 35 carrying a spring finger 36, a tubular holder 38 and marking means 39 is attached to the sliding member 10. Hair gathered in the fork 4 is pushed by hand into the slot 5, 7. The sliding member 10 is then inserted in the slot and is allowed to compress by its own weight the hair therein. The arm 35 is then pressed and the record sheet is marked by a small rotation of the roller 17. A modified form of marking arm has a longitudinal opening through which a pencil may be inserted.
Patent GB-794504-A (GB)
Title: An improved bearing for weighing scales
IPC: G01G21/04
Filed: 1954-11-25
Abstract: 794,504. Knife-edge bearings. BERKEL AUTO SCALE CO., Ltd. Aug. 15, 1955 [Nov. 25, 1954], No. 34159/54. Class 12 (1). A knife-edge 1 rests in a V-shaped trough formed by the top surfaces of bearing plates 2 ... 5 which are supported on resilient stems 6 ... 9, respectively, of circular cross-section. The bearing plates are arranged alternately inclined in pairs, and the stems are mounted at their lower ends in a support 10. The stems may be of piano wire.
Patent GB-904069-A (GB)
Title: Post-detection diversity combining system
IPC: H04B7/08
Filed: 1959-10-09
Abstract: 904,069. Radio-receiving systems; valvelimiter circuits. STANDARD TELEPHONES & CABLES Ltd. Oct. 9, 1959 [Oct. 16, 1958], No. 34267/59. Classes 40 (5) and 40 (6). Relates to a diversity receiving system for angularly modulated waves in which either space, frequency, or time diversity may be used, and in which the signals from the respective channels are combined after being separately detected. A type of limiter is used in each receiving channel which suppresses or greatly reduces rapid variations in signal amplitude but in which the output signal varies in accordance with the input signal amplitude for longterm signal variations, so that the relative amplitudes of the received signals are preserved for linear addition at the detector outputs. As shown in Fig. 1, each receiving channel includes an R.F. amplifier 2, mixer and oscillator 3, 4, and an I.F. amplifier 5, and in the case of time diversity, a delay 6 is included in one of the channels to bring the received signals into time coincidence. The outputs of the I.F. amplifiers are supplied to respective limiter circuits 7, 7a, which provide equal gain from their input to the output of the discriminators 8, 8a, the detected outputs being added in network 10, 10a. The limiter circuits include an amplifier 11 whose output is coupled to a pair of diodes 12, 13, the limiting level being determined by a circuit 15, 16, having a time constant which does not permit the level to fluctuate rapidly but adjusts it to long-term signal changes. Additional limiting stages 17 may be included. Detectors 19, 19a receive a signal from the respective I.F. amplifier, and their combined outputs provide a common A.G.C. circuit for the I.F. amplifiers. In a modification, Fig. 2, the limiter includes an amplifier 21 and the input signal to this amplifier is rectified, amplified at 23, and supplied to a time constant network 24, to provide a bias level for the diode limiters 25, 26 which opposes a fixed bias 27. If desired, the fixed bias may be removed by the switch 28. The limiters operate as in Fig. 1, and the bias voltage produced in network 24 may be coupled to further limiters. In a further arrangement, Fig. 3 (not shown), in the limiter circuit the diodes are omitted and the output of the amplifier feeding the discriminator or further limiting stages is rectified, amplified and fed back via a capacitor to control the gain of the said amplifier. In this way, instantaneous amplitude fluctuations are suppressed but because of the capacitor in the feedback circuit, no long-term change in gain can occur. In an alternative arrangement, Fig. 4 (not shown), diode limiters in the two channels are interconnected and provided with a fixed bias opposing a variable bias on a common capacitor.
Patent GB-896961-A (GB)
Title: Improvements in rollers for the pressure treatment of material in web form
IPC: D06C15/08
Filed: 1960-10-06
Abstract: 896,961. Hollow rollers. KUSTERS, E. Oct. 6, 1960 [Oct. 9, 1959], No. 34285/60. Class 34(1) A pressure roller comprises a hollow cylinder having a spaced core rotating with it which has pressure loaded ends, the space between cylinder and core having chambers parallel to the roller axis formed by tubes of resilient-material deformable in cross-section. The hollow cylinder has a spaced rotating core 2 with pressure-loaded ends, the space 8 being divided by projections or ribs 4 on the core into pockets, each of which contain a deformable tube 5. The tubes are filled with liquid or gas and are successively connected to a source of pressure by a distribution valve (not shown) when in the vicinity of the surface 3 of a co-operating roller. Additional cushioning may be achieved by the insertion of elastic hollow spherical bodies and the space round the tubes may be filled with heat resistant oil which is circulated therethrough.
Patent GB-911309-A (GB)
Title: Improvements in or relating to rectifier arrangements
IPC: H02M7/08
Filed: 1959-10-09
Abstract: 911,309. Rectifying. SIEMENS-SCHUCKERWERKE A.G. Oct. 9, 1959 [Oct. 10, 1958], No. 34323/59. Class 38 (2). Unbalanced flow of current through parallel semi-conductor rectifiers 10 to 23, due to the skin-effect, is overcome by connecting the rectifiers to different lateral parts of bus-bars 1, 2. If current flows through the bus-bars in the same direction the innermost rectifiers 16, 17, which normally carry least current, are connected to the outer edges of the bus-bars, which normally carry most current, and outermost rectifiers 10, 11 are connected to the inner edges of the bus-bars (Fig. 1). If current flows in opposite directions through the bus-bars the positions are reversed (Fig. 2). The arrangement of Fig. 2 may also be used when the electrical connections are made mid-way along each busbar. One or both bus-bars may be provided with parallel rows of connections so that the arrangement may be varied for different current flow in the bus-bars. The connections of rectifiers to one bus-bar may be in a straight line (Fig. 4, not shown).
Patent GB-633083-A (GB)
Title: Improvements in automatic lubricators
IPC: F16N13/04
Filed: 1946-11-20
Abstract: 633,083. Lubricators. NUNN, H. L. Nov. 20, 1946, No. 34354. [Class 12 (iii)] [Also in Group XXVIII] A variable-stroke automatic lubricating pump comprises a pump actuating lever pivotally mounted in an oil reservoir, means for oscillating the lever, a hollow variable-stroke piston provided with a valve seat at its outer end (in the reservoir) and mounted in a pump cylinder communicating with the reservoir, and a valve mounted on the pump lever which is pressed on to the valve seat to close the cylinder and move the piston on its pumping stroke, said valve being supported entirely by the pump lever when it is retracted from its seating. As shown, a cylinder 2 screwed into a wall of a lubricant reservoir 1 contains a hollow piston 5 which projects at one end into the reservoir 1 and at the other end is fixed on to one end of a spring 11. The other end of the spring 11 is fixed to a gland nut 6 closing the outer end of the cylinder 2, and a rod 7 passing through the gland nut screws into one end of a strip-like member 10, which may be a flattened sheetmetal tube. The other end of the strip-like member is of increased width to form an abutment for the piston end of the spring 11, an upturned portion of which secures the strip-like member against rotation. To adjust the axial position of the piston 5, the rod 7 is rotated by a knurled head 8, a coned collar 9 bearing against the inner end of the gland nut 6 preventing any axial movement of the rod. An actuating lever 4 in the reservoir 1 is adjustably pivoted at one end and has a ball 12 riding in an elongated recess at the other end. The ball 12 seals the end of the piston 5 on the delivery stroke, the lever being operated by a cam 14 mounted on a rotating shaft 15. A member 16 engages the rear side of the cam to move the lever on the return stroke. A conical valvemember slidably-mounted on the actuating- lever 4 and engaging with a conical seating in the end of the piston 5 may be used in lieu of the ball 12. The lubricant may be delivered via a water-filled sight-feed casing 3, or, if grease is used, a spring-urged indicating plunger may be fitted direct in the delivery pipe. A steel liner (not shown) may be fitted in the cylinder 2 to receive the piston 5. The receiver 1 may have a gland hole at each side to allow a number of lubricating pumps to be ganged on a rod, the rod having gland washers at each end and the intermediate holes being sealed with packing. The actuating lever 4 may be operated by an oscillating shaft or a reciprocating member.
Patent GB-521774-A (GB)
Title: Improvements in and relating to the production of silver alloys
IPC: C22C5/08
Filed: 1938-11-25
Abstract: 521,774. Alloys. MALLORY METALLURGICAL PRODUCTS, Ltd. (Mallory & Co., Inc., P. R.). Nov. 25, 1938, Nos. 34433/38 and 7877/39. [Class 82 (i)] [Also in Group XXXVII] Alloys, particularly for electric contacts, consist of silver with 0À1 - 5 per cent. of nickel, 0À5 - 25 per cent. of cadmium, and 0À5 - 35 per cent. of copper. For D.C. purposes, the alloys may be used for the positive side, the negative side being either silver or a silver alloy substantially free from cadmium, examples'of such alloys being silver containing nickel, cobalt, iron, or manganese, or noble metal such as one or more of the metals palladium, platinum, or gold.
Patent GB-166873-A (GB)
Title: Improvements in or relating to traction vehicles
IPC: B62D49/00
Filed: 1920-12-07
Abstract: 166,873. Davison, G. C. July 22, 1920, [Convention date]. Axle structures.-A tractor of the kind described in Specification 154,552 comprises a front twin driving and steering wheel and rear wheels mounted on axles upwardly cranked to clear growing crops and adjustably transversely on the main frame to vary the track. The axles 160, with raised parts as shown, are mounted by means of bearings 166, 167, being secured in their adjusted position by means of a pin 168 passing through holes in the axles and bearing 167.
Patent GB-1256318-A (GB)
Title: Alpha-hydroxy-carboxylic acid penta-coordinate silicon complexes
Inventor: FRYE CECIL LEONARD
IPC: C07F7/18
Filed: 1970-07-17
Abstract: 1,256,318. Pentaco-ordinate silicon complexes. DOW CORNING CORP. 17 July, 1970 [19 Aug., 1969], No.. 34686/70. Headings C3B and C3S. Novel alpha-hydroxycarboxylic acid pentaco-ordinate silicon complexes of the formula wherein A is a cation formed from an amine, R is a C 6-18  aryl radical, R<SP>1</SP> is hydrogen or phenyl and n is an integer equal to the number of protonated nitrogen atoms in A, are prepared by reacting together an amine corresponding to A, an appropriate alpha-hydroxy carboxylic acid (viz. glycolic or mandelic acid) and a silane of the formula RSiX 3 , wherein X represents a hydrolysable group. A may be derived from primary, secondary and tertiary aliphatic, aromatic or heterocyclic amines, quaternary ammonium compounds, alkanolamines, polyamines, cyclic amines, guanidines, hydrazines and alkaloids. In examples R represents phenyl and A is variously derived from triethylamine, hexamethylenediamine, benzyldimethylamine and n-butylamine. The above complexes may be used both as catalysts and as cross-linking agents for epoxy resins, such use being exemplified by the cross-linking of a liquid epoxy resin derived from epichlorohydrin and Bisphenol-A in the optional presence of trimellitic anhydride.
Patent GB-1202401-A (GB)
Title: Nuclear reactor servicing installations
Inventor: JONES GRAHAM HENRY
IPC: G21C19/32
Filed: 1967-07-28
Abstract: 1,202,401. Fuelling and servicing reactors. ENGLISH ELECTRIC CO. Ltd. 6 Aug., 1968 [28 July, 1967], No. 34722/67. Headings G6C and G6R. An installation for dismantling or assembling a fuel or control rod assembly and especially intended for a fuel assembly which comprises a fuel stringer connected at its upper end to a plug stringer, consists of a concrete structure 10 adjoining the biological shield of the reactor (not shown), the top surface 11 being at the same level as the pile cap. A standpipe 13 enables a fuel or control rod assembly from the reactor to be lowered into the transfer chamber 12 by the reactor fuelling machine (not shown). Storage or transit tubes 21, 24 ... 29, 36 have their upper ends open to the chamber 12, the fuel or control rod assembly components being transferred to or from these tubes by a hoist unit 43 having a grab 44. The fuel or control rod assembly is lowered from the standpipe 13 into the tube 29 so as to be supported at its lower end on an elevator platform 33 extending through a slot in the tube wall, the platform being movable by an endless chain '34 to which it is attached. To dismantle a fuel assembly supported on the platform 33, manipulators 39 disconnect the tie rod, extending coaxially right through the assembly, from the plug stringer and the latter is withdrawn through the standpipe 13 by the fuelling machine. Hoist unit 43 lifts the neutron scatter plug from the assembly and deposits the plug in the tube 26. Manipulators 40 are operated to disconnect the tie rod from the remainder of the assembly and a cutting device 35 is operated to cut off a short portion of the rod and then support the remainder of it. The cut-off portion of the tie rod is removed by the manipulators 40 and deposited in a duct 16 leading to a disposal chamber 18. An opening in the platform 33 enables the tie rod to drop down whilst the remainder of the assembly is supported and thus by repeatedly operating the device 35 and manipulators 40 the tie rod may be disposed of. The platform 33 is raised in steps to bring the fuel elements comprising the stringer in succession to the top of the tube 29. Firstly, the grab 44 removes the graphite sleeve of the fuel element and places it in the duct 27 leading to a crushing machine 32, the crushed sleeve dropping into a disposal chamber 31. The grab 44 then drops the remainder of the fuel element down a duct 24 leading to a pond 30. A new fuel assembly may be assembled in the tube 29 by a reversed procedure, the tie rod being introduced through the standpipe 13 and the other components being introduced into the chamber 12 through the tube 22 leading to a loading chamber 20. The chambers 12, 15, 18, 19, 31 and pond 30 are totally enclosed and arranged to be supplied with a continuous flow of reactor coolant gas. Windows 40, 41 enable the manipulators 39, 41 to be observed.
Patent GB-1520442-A (GB)
Title: Skirt-tuned single oscillator transceiver
IPC: H04B1/40
Filed: 1975-08-21
Abstract: 1520442 Transceivers UNITED TECHNOLOGIES CORP 21 Aug 1975 [29 Aug 1974] 34757/75 Headings H3A and H4L A microwave transceiver interchangeably usable as a master or slave in a duplex system comprises an oscillator 14 selectably tunable by an arrangement including a fixed tuned resonant circuit 116, a synchronous detector 136 and a sweep circuit 140 to the resonant frequency fc of 116 in the master mode and to a frequency offset from fc by the I.F. frequency in the slave mode. In the master mode, the oscillator 14 is modulated by analog or digital information at 2 and transmitted at 22. In the slave mode, the received signal is mixed at 32 with an output of the oscillator 14 nominally tuned to the offset frequency and an AFC error voltage detected by 36g is applied to the sweep and integrator 140 when the received IF exceeds a threshold for a period determined by 144 to frequency lock the oscillator 14 at the correct offset frequency and the control path via 124, 136 is inhibited. In the slave or the receive mode, an arrangement including a variable gain amplifier 4, a synchronous detector 56 and two signal paths, one including a delay 54 and the other including the oscillator 14, the receiver 36 are utilized for preventing the modulation signals present at 2 from effecting the receiver output at 40. Fig. 2 (not shown) relates to the frequency control arrangement of 126.
Patent GB-967238-A (GB)
Title: Improvements in or relating to high temperature thermal insulation
Inventor: ARMSTRONG EDWARD
IPC: G21C11/08
Filed: 1959-10-14
Abstract: 967,238. Non-conducting coverings for heat. BRITISH REFRASIL CO. Ltd. Jan. 13, 1961 [Oct. 14, 1959], No. 34794/59. Heading F2X. A heat insulation unit comprises a number of superimposed stainless steel foils 1 each having projections 2 on one face and spacing bearer strips 3 disposed transversely of the said projections on the other. In attaching the unit to a surface of any shape the foils are formed to a greater convexity than that of the surface and the centre or central axis of the unit forced into contact with the surface. In the form shown in Fig. 2 the foil 1 is hexagonal, the projections 2 arcuate and the strips 3 radial, the unit being attached to a concave surface (Fig. 4) by the engagement of a nut 8 and washer 9 with a threaded stud 7 which is welded to the said surface and passes through a central aperture 5 in the foil. The unit may be rectangular (Fig. 5, not shown), in which case securing apertures are provided along its central axis.
Patent GB-841532-A (GB)
Title: Pressure intensifier
IPC: A47J31/24
Filed: 1956-11-15
Abstract: 841,532. Coffee making machines. FORGHIERI, R. Nov. 15, 1956 [Nov. 18, 1955], No. 34966/56. Class 129. [Also in Group XXIX] A differential piston assembly 3, 4 may be used for providing liquid at a pressure predetermined by valve 47 to, for example, coffee infusion preparing machines. The cylinder spaces respectively below and above the pistons 3, 4 are first filled with liquid via non-return valves which close when the spaces are full, whereupon the piston assembly rises under the differential action of the pistons and pushes high pressure liquid through valve 47. The spring 42, 43 are arranged to open exhaust valves 30, 31 at a compression reached just as the piston assembly reaches the end of its stroke, the piston assembly being returned by springs 24, 25. The cycle is then repeated.
Patent GB-1076866-A (GB)
Title: Bituminous paving composition
Inventor: METCALF CHARLES THEODORE
IPC: C08K3/06
Filed: 1965-08-16
Abstract: 1,076,866. Bituminous compositions. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Aug. 16, 1965, No. 34981/65. Heading C3N. A butuminous composition comprises an inorganic aggregate, e.g. crushed stone, sand, gravel, or slag, all of which is retained on a No. 200 U.S.A. Standard screen, and in which at least 60% of the voids are filled with a bitumen having elemental sulphur dispersed therein in the ratio of 1-4: 1. Pyrogenous bitumen derived from petroleum residues is preferably used and the addition of the sulphur is carried out between 112À8‹ C., the melting point of sulphur, and 177‹ C., the reaction temperature of sulphur and bitumen.
Patent GB-1524424-A (GB)
Title: Method of erecting offshore structures and apparatus therefor
IPC: E02B17/00
Filed: 1976-08-23
Abstract: 1524424 Offshore structures RAYMOND INTERNATIONAL INC 23 Aug 1976 [6 Oct 1975] 35027/76 Heading E1H The disclosures in this specification are substantially the same as that described in Specification 1524423 but the subjects of the claims is an offshore structure having at least one vertical leg with a jacking mechanism mounted on top and a jacking leg extending between the mechanism and a platform which is raised up from the water surface by the mechanism and a method of assembling this structure using the jacking leg and mechanism.