baber/WOPTO huggingface dataset:
Patent GB-849903-A (GB)
Title: Improvements in and relating to the testing of servo systems
Inventor: CATHERALL REGINALD
IPC: G05B23/02
Filed: 1956-01-18
Abstract: 849,903. Electric tests. SOLARTRON ELECTRONIC GROUP Ltd. Dec. 28, 1956 [Jan. 18, 1956], No. 1758/56. Class 37 Apparatus for testing servo-systems comprises a source of electrical oscillation 10 supplying an input signal sin wt to the servo-system 33 to produce an output signal of angular frequency w, a reference indicator 12 and a quadrature indicator 21, each indicator having two pairs of inputs and means, e.g. dynamometer type wattmeters 13, 14, 22 and 23, for multiplying one input of each pair with the other to produce a resultant, the two resultants in each indicator being added together by coupling the shafts of the wattmeters to a zero centre torque meter 19 or 28, meter 19 indicating the component of the output signal of servo system 33 in phase with sin wt and meter 28, the component in quadrature with sin wt. The output of servo system 33 is applied to the coils 27 and 18 of wattmeters 23 and 14 and to a phase shift network 29, producing a phase shift of 90 degrees, the output of the network 29 being applied to coils 25 and 16 of wattmeters 22 and 13, respectively. The oscillations sin wt, from source 10, are also applied to coils 17 and 24 of meters 14 and 22 respectively and oscillations cos wt from source 10 are applied to coils 15 and 26 of meters 13 and 23 respectively. If servo 33 is operating ideally, i.e. its output equals the input, then the torque on meter 19 is proportional to sin<SP>2</SP>wt+cos<SP>2</SP>wt which is unity, and the torque on meter 28 is sin wt cos wt -sin wt cos wt which is zero, the minus sign arising due to the reversal of the sense of coil 27 relatively to that of coil 26. A tuning capacitor of the phase shift network 29 is shown ganged to the tuning capacitor 11 of the generator 10 so that at all settings of capacitor 11 the network 29 produces 90 degrees phase shift to any input signal of the frequency of generator 10. In an embodiment (Fig. 2 not shown) the indicators each comprise two analog multipliers, the outputs of each pair of multipliers are combined in summing and integrating D.C. amplifiers to remove any disturbing effects of voltages arising in the servo-system, the indicating means being ammeters or voltmeters. The dynamometer type-wattmeters may be replaced by other suitable devices, e.g. electrical or electro-mechanical four quadrant analog multipliers. Specification 772,235 is referred to.
Patent GB-100757-A (GB)
Title: Improvements in and relating to Cutting Off or Parting Machines for Cutting Off Lengths or Pieces from Bars, Billets, Tubes and the like.
IPC: B23B5/14
Filed: 1916-02-07
Abstract: 100,757. Clifton & Baird, and Clifton, C. H. Feb. 7, 1916. Lathes.-Cutting-off lathes of the type employing a rotary tool-head have means for maintaining the cutting speed constant, notwithstanding a change in the rate of feed. The driving-shaft B transmits motion through expanding pulleys and a belt 1 to a shaft geared at 5 to a shaft 9 geared to the spindle at 10 and to the feedmechanism at 12. The tool-slides are fed by an overrunning annulus 39, driven for feed by a clutch 37 and braked at 36 for a quick return. The rate of feed is varied by a sliding key nest of gears 25. In order to maintain the cutting speed constant, the control lever 33 serves also for a sliding key 30 transmitting drive to a shaft 40 worm-geared at 44 to a sector 50 actuating the expanding pulleys through levers connected for adjustment by a screwed rod provided with a hand-wheel. The levers control collars acting on the movable flanges through springs. A hand-controlled clutch 49 provides for throwing out the worm drive 44 and putting in a chain drive 47 for rapid resetting of the control mechanism. The sliding key nest of gears may be replaced by hand change-gears, and the worm gear 44 may actuate a controller for an electric motor driving the shaft 4 directly, the belt drive being dispensed with. In this case, the driving-sprocket 63 is placed on the shaft 4.
Patent GB-509890-A (GB)
Title: Manufacture of ethers of mono-hydroxy-halogen-1:4-benzoquinones
IPC: C07C50/28
Filed: 1938-01-20
Abstract: 509,890. Ethers of mono-hydroxy-halogen 1; 4-benzoquinones. GROVES, W. W. (I.G. Farbenindustrie Akt.-Ges.). Jan. 20, 1938, No. 1910. [Class 2 (iii)] Ethers of monohydroxy-halogen-1 ; 4-benzoquinones are made by treating a 1 ; 4-benzoquinone containing more than one halogenatom with an alcohol in the presence of a quantity of an acid-binding agent not exceeding the equivalent of the amount of quinone used. A diluent which may be the same alcohol may be used. In examples. (1) Chloranil is heated with methanol and sodium acetate to yield 2-methoxy-3 ; 5 ; 6 ;-trichloro-1; 4-benzoquinone. (2) Bromanil heated with ethanol and potassium carbonate yields ethoxytribromo-1 ; 4-benzoquinone. (3) Trichloro-tolu-1 ; 4-quinone heated with methanol and sodium acetate to yield methoxy-dichloro-tolu-1 ; 4-quinone. (4) Chloranil heated with n-butanol and potassium acetate yields butoxy-trichloro-1 ; 4-benzoquinone. (5) 2:5 dichloro-6-methyl-1 ; 4-benzoquinone heated with methyl alcohol and sodium acetate yields a methoxy-chloro-tolu-quinone. The products may be used, if desired, without isolation from the reaction mixtures for the preparation of gyes or dye intermediates. (Cf. Specifications 509,891, 509,893, and 509,898.)
Patent GB-692247-A (GB)
Title: Improvements in or relating to frequency-demodulation circuits
IPC: H03D3/22
Filed: 1952-01-24
Abstract: 692,247. Frequency modulation. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 24, 1952 [Jan. 27, 1961], No. 1984/52. Class 40 (v). Frequency-modulated oscillations are demodulated, and amplitude variations removed, by an electronic tube 3 having two or more control grids 4, 5 to which the oscillations are applied with a mutual phase displacement determined by the frequency deviation. The grid 4 is so biased as to block the tube during part of the oscillatory period, and the grid 5 operates as a current distribution electrode between the anode 9 and a screen grid 10 lying between the control grids 4, 5. The screen 10 is connected to HT+ through a resistor 11 which is decoupled for the oscillation frequency by a capacity 13, but not for the demodulated signal. The control grid 5 is so biased that the negative half-cycles block the tube whilst the positive half-cycles drive the tube to saturation. A preceding amplifier 1 has its tuned anode circuit 7 connected across the grid 5 and the cathode of the tube 3, and a coupled tuned circuit 6 is connected to the grid 4, the smoothed voltage across the anode resistor 12 yielding the demodulated signal. Should the input oscilla. tions vary in amplitude, their effect on the anode output current is reduced by an opposing variation in the voltage on the screen grid 10 due to the resistor 11. On the other hand, deviations of input frequency have an enhanced effect on the anode current due to the robbing action of the outer control grid 5 on the screen current. The voltage on the screen may be fed back to the grid of the tube 1 to control its gain. The outer screen 14, if present, may be connected to the screen 10, or to a fixed voltage point. The demodulated signal may be taken from the screen 10, and the anode 9 connected to the grid of the tube 1.
Patent GB-245284-A (GB)
Title: Improvements in mechanical lead pencils
IPC: B43K21/20
Filed: 1925-01-22
Abstract: 245,284. Pollak, A. Jan. 22, 1925. Pencil holders. - In pencil holders of the type in which a lead-carrying member is pressed forward by hand against the action of a spring and is provided with wedging-means for gripping the lead during the forward stroke to impart a step-by-step feed to the lead, the lead-carrying member is provided with a number of spring members of wedge formation adapted to cooperate with a sleeve and having a longitudinally-extended leadgripping surfaces. Preferably a magazine chamber is provided from which leads are automatically and successively fed to the lead-carrying member. As shown, the lead-carrying member 30 is connected to a member 27 inserted in a magazine tube 26 and provided with a conical portion adapted to direct the leads one at a time to the member 30. The magazine tube is closed at the rear end by an eraser 44 and is frictionally connected to a cap 21 slidable on the end of the outer casing 20. The front end of the lead-carrying member is split to form a number of spring arms 45, the outer sides of which are inclined downwardly and outwardly. A conical sleeve 36 encircles the arms 45 and is movable in a chambered member 35 between a nut 34 and a shoulder 38. In the normal position when the magazine tube is held retracted by a spring 33 interposed between the nut 34 and the member 27, the sleeve 36 is forced down on the arms 45 to cause them to grip the lead. To feed the lead forward, the magazine tube is pushed in and the lead is propelled by the arm 45 under the influence of the sleeve 36 until the latter is arrested by the shoulder 38, when the arms are allowed to spring apart. During the rearward movement, the arms remain free of the lead until the sleeve, which is carried back by the arms, is stopped by the nut 34, when, during the slight further movement of the magazine tube, the arms are caused to grip the lead again. To ensure that the arms release the lead at the end of the forward movement, the rear end of the tip 23, which screws into the front end of the member 35, is provided with a conical end adapted to engage correspondingly-shaped parts at the front ends of the arms. The tip, which serves to lock the mechanism in the casing and to prevent the retraction of the lead during the rearward movement of the magazine tube, is provided with a shoulder adapted to engage the front end of the casing when the tip is screwed into the member 35.
Patent GB-719036-A (GB)
Title: Improvements in or relating to asphalt production
IPC: C10C3/02
Filed: 1953-01-23
Abstract: 719,036. Asphaltic material. STANDARD OIL DEVELOPMENT CO. Jan. 23, 1953 [April 1, 1952], No. 2010/53. Class 55 (2) An asphaltic material of high softening point, ductility, and penetration properties is obtained from the distillation residue of petroleum oil by treatment within a temperature range of 350‹ to 600‹ F. with not more than 5 per cent of carbon tetrachloride and continuously removing the hydrogen chloride evolved. To ensure this the reaction is preferably conducted under refluxing conditions at atmospheric pressure. Or hydrogen chloride absorbents such as clay, talc or asbestos may be mixed with the residual oil. Liquid or semi-solid residues from the distillation under vacuum of the tar obtained by atmospheric distillation of petroleum, crude oil or from the fluxing of harder residual asphalts with heavy distillates, but not asphaltic residues which have been subjected to steam reduction or oxidation may be utilized as starting material. The product may be mixed with small quantities of natural or synthetic rubber, and polymerized hydrocarbons.
Patent GB-831873-A (GB)
Title: Analgesic compositions
Inventor: MARTIN BERNARD KEAT
IPC: A61K31/485
Filed: 1957-01-18
Abstract: An analgesic composition suitable for injection, oral or rectal administration, comprises an acid addition salt of amiphenazole (2:4-diamino-5-phenylthiazole) and a hydrochloric or tartaric acid addition salt of an active analgesic constituent selected from morphine, a synthetic analgesic or an analgesic chemically related to morphine, having an analgesic effect comparable with that of morphine, the ratio of parts by weight based on the active analgesic constituent, being from 50 to 0.167 parts of the amiphenazole salt for every part of morphine or analgesic chemically related thereto, and from 20 to 0.167 parts of the amiphenazole salt for every part of synthetic analgesic. The acid addition salt of amiphenazole may be the hydrochloride salt.  Examples of analgesics chemically related to morphine are diamorphine, 6 - acetyl - morphine, dihydromorphinone, metopon, levorphanol and levomethorphan.  Examples of synthetic analgesics are perhidine, amidone, ketobemidone, alphapradine, and phenadoxone.
Patent GB-326606-A (GB)
Title: A commutator for use with electric filament lamps
IPC: H01R33/955
Filed: 1929-01-21
Abstract: 326,606. Leff, M. Jan. 21, 1929. Multiple-filament lamps; holders.-Relates to a switch for connecting the two filaments of a lamp in parallel or in series, or for enabling either to be used, or none at all, the switch being arranged in a lamp holder in one form of the invention. The three aligned contacts of a bayonet lamp engage contacts 47 - - 49, of which 47 has a spring 54 engaging the centre of a rotatable barrel. Conducting sleeves 51, 52, provided with extensions as shown; frictionally engage plates 55, 56 connected to the supply, and a ball 57 engages a hole in the barrel at each of the five positions of the switch, to ensure correct positioning. Fig. 4 shows an Edison lamp socket, one contact 2<1> of which is connected to a plate 60 surrounding, but insulated from, the centre contact 3'.
Patent GB-1457794-A (GB)
Title: Lampshades
IPC: F21V1/12
Filed: 1974-01-16
Abstract: 1457794 Lampshades P W READING 16 Jan 1975 [16 Jan 1974] 02118/74 Heading F4R A lampshade comprises side members 14 each formed from a blank by folding and engagement of slits, e.g. 22 with 23, each member 14 further having two slots 24 for engaging end members 10 and being retained by latching means comprising radially inwardly directed tabs 12 pressed out of end members 10. The members are formed from stiff resilient thin paper or plastics and may be black, white or coloured, plain or patterned. A bulb-holder 28 may be attached.
Patent GB-650165-A (GB)
Title: Improvement in clothes lines and improved clothes grips therefor
IPC: D06F55/00
Filed: 1948-01-23
Abstract: 650,165. Clothes pegs. SAMUEL, C. E. M., and SAMUEL, F. E. Jan. 23, 1948, No. 2163. Convention date, Jan. 24, 1947. [Class 44] A device for suspending clothes, comprises a line 4, Fig. 1, on which the clothes are hung and a second line 5 spaced therefrom and carrying a number of longitudinally slidable clothes gripping devices each of which may have its free end swung over to grip clothes on the line 4. In one embodiment of peg formed from a single length of wire, two nearly complete coils 8 constitute clothes gripping portions, their ends being twisted together and bent to form a pair of spaced horizontal arms 6 terminating in eyes 7 through which passes the line 5. In a modification the wire is formed into a double inverted U- shape, the base of each U being coiled with one pair of ends integral and the other pair twisted together and extended as spaced arms. The peg may be sprung on to the line 5 by means of spring hook portions on the ends of the arms. In another embodiment, a moulded peg is formed with a stem 14, Fig. 3, whose eye 15 engages the line 5, and jaws 16, each having a gripping convexity 17 upon its inner face near the outer end. In a modification the stem is of wire formed with a line-engaging eye at one end and hinged to the peg at the other.
Patent GB-1041491-A (GB)
Title: Detergent alkylate composition of secondary phenyl-substituted n-alkanes
IPC: C11D1/22
Filed: 1965-01-18
Abstract: Detergent alkylate compositions comprise secondary, phenyl-substituted n-C11-C14-alkanes of which at least 50% wt. is phenyl C12-C14 alkanes of which (a) a major proportion (referred to the sum of (b) and (c)) is mid-chain (i.e. other than 2-, 3- and 4-substituted) phenyl-substituted alkanes, (b) 4-30% wt. is 4-phenyl alkanes and (c) not more than 36% is 2- and 3-phenyl alkanes.  The phenyl alkanes are obtained by alkylating benzene, toluene or xylene with a n-alkene or n-alkyl halide and reducing the content of terminal, 2- and 3-phenyl C12-C14 alkanes by distillation. Distillation can be effected on cuts containing a single carbon number mixture or two carbon members, e.g. phenyl C11 and C12 alkanes to remove 2- and 3-phenyl C12 alkanes and C13 and C14 mixtures to remove 2- and 3-phenyl C14 alkanes.  Detergent compositions comprise neutralized sulphonates of the above alkyl benzene mixtures. The composition may contain by weight, 10-30% alkyl benzene sulphonate together with a builder, e.g. sodium tripolyphosphate, tetrasodium pyrophosphate or sodium polymetaphosphate particularly a mixture of 80% tripolyphosphate and 20% pyrophosphate, about 5% of sodium silicate having a silica to soda ratio of 1:2 to 2:3, 1-3% of sodium carboxy-methylcellulose, about 5% of a mono- or diethanolamide of a fatty acid, e.g. lauric isopropanolamide, 2-5% of sodium perborate or percarbonate, up to 30% of an inorganic sulphate, carbonate or borate, less than 1% of tetrasodium ethylene diamine and 0.1-0.2% of an optical brightener, e.g. a triazinyl or aroylstilbene, benzidine-sulphone, bisbenzimidazole, triazole or amino coumarin.
Patent GB-1108388-A (GB)
Title: 14-hydroxydihydronormorphinone derivatives
Inventor: BLUMBERG HAROLD
Filed: 1967-01-17
Abstract: Novel N - (31 - methyl - 21 - butenyl) -, N-cyclopropylmethyl -, and N - cyclobutylmethyl - 14 - hydroxydihydronormorphinones and the physiologically acceptable acid addition salts are prepared by reacting the corresponding N-unsubstituted compound with an alkyl halide, sulphate or sulphonate, or by reacting the corresponding N-unsubstituted compound or an acetal derived thereof, such as the ethylenedioxy derivative, with the required carboxylic acid chloride or anhydride, reducing the N-carbonyl group in the resulting 6-keto(or protected keto) - 3 - acyloxy - N - acyl - 14 - hydroxydihydronormorphinan, and in the morphine product oxiding the 6-hydroxy group into a keto group or converting the 6-protected keto group to a 6-keto group respectively.  Therapeutic compositions contain the above novel compounds or their physiologically acceptable acid addition salts as the active ingredient. The compositions are analgetics as well as narcotic antagonists and may be in the form of tablets, liquids, syrups, elixirs and suppositories.
Patent GB-813055-A (GB)
Title: Improvements in or relating to devices for the dampening of printing plates
Inventor: SCHONE HELMUT
IPC: B41F7/26
Filed: 1956-01-25
Abstract: 813,055. Damping apparatus. DRUCKMASCHINENWERKE PLANETA V.E.B. Jan. 25, 1956, No. 2439/56. Class 100(2) In a dampening mechanism for planographic printing machines in which the dampening liquid, taken by means of an immersion roller 1 out of a water container 2 passes over a transferring roller 5, a water distributer cylinder 7 and adjoining dampening rollers 8 to a plate cylinder 9 and in which the speed of the immersion roller can be regulated, the immersion roller is eccentrically mounted so that it can approach near to the transferring roller sufficiently for the delivery of a film of moisture. The roller 1 is provided with eccentric bearings and the roller 5 is mounted on levers 4 pivoted to bearing plates 12. The gap between the rollers 1 and 5 when they are in their closest positions to each other is adjusted in accordance with the speed of the machine, so that efficient water transfer takes place, by means of screws 13 which bear on the plates 12, the roller 5 being in contact with the roller 7. In the event of a faulty supply rotation of a shaft 14 carrying an eccentric 15 operates linkage 16, 17-20 so as to turn a lever 21 so that adjustable screws 22 bear on the levers 4 to move the roller 5 out of contact with the roller 7. The linkage may be operated manually by means of a hand lever 23.
Patent GB-736952-A (GB)
Title: Improvements relating to optical projection apparatus
Inventor: TAYLOR JOHN HARRY
IPC: H04N5/74
Filed: 1951-02-02
Abstract: 736,952. Optical projection apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 23, 1952 [Feb. 2, 1951], No. 2580/51. Class 97 (1). [Also in Group XL (b)] In a television receiver in which images on a cathode-ray tube 2 are projected, as by a Schmidt system 3, 4 and mirror 6, on to a translucent screen 5 having refractive elements which render it directional at least in the vertical sense, the screen is inclined away from the viewer and projection is effected, preferably normally to the screen, so that the central ray substantially intersects the eye-level of an average person seated at the minimum distance where the line structure of the image is unobjectionable.
Patent GB-122516-A (GB)
Title: Improvements in the Manufacture of Sulphuryl Chloride.
Inventor: POPE WILLIAM JACKSON
IPC: C01B17/45
Filed: 1918-02-13
Abstract: 122,516. Pope, W. J. Feb. 13, 1918. Sulphuryl chloridc.-A mixture of sulphur dioxide and chlorine in equimolecular proportions is passed over charcoal which acts as a catalyst to produce combination with evolution of heat. The temperature should preferably be kept down to about 30‹ C.
Patent GB-632127-A (GB)
Title: Improvements in or relating to gas-turbine engines
IPC: F02C7/36
Filed: 1948-01-28
Abstract: 632,127. Gas turbine plant. HAWORTH, L. Jan. 28, 1948, No. 2611. [Class 110(iii)] In a gas turbine plant comprising two turbine rotors 12, 16 driving, respectively, the air compressor 10 and an air or marine propeller 15, the turbine shafts 11, 17 are connected by an over-running clutch 23 so that the speed of the propeller-driving turbine cannot exceed that of the compressor. The elements of the clutch 23 may be driven through gears to provide for overrunning when the ratio of the speeds of the two turbines tends to exceed a predetermined value and the gears may include an idler wheel for plants in which the turbine rotors rotate in opposite directions. The fuel supply may be additionally controlled by a speed-governor on the compressor shaft.
Patent GB-686463-A (GB)
Title: Improvements in or relating to anti-skid devices for automotive vehicles
IPC: B62D37/04
Filed: 1950-02-01
Abstract: 686,463. Anti-skid devices. SINGER, O. G. Feb. 1, 1950, No. 2628/50. Class 108 (ii). An anti - skid device comprises an inertia mass 6 mounted in a tubular guide 1 for displacement parallel to the rear axle against the action of resilient elements 7 which tend to maintain it in a median position, each end of the mass 6 carrying three roller elements 8 equidistant from each other. The inertia mass is of lead &c. and is closed by plugs 5 which carry the rollers 8. One roller 8 in each plug 5 is eccentrically-mounted relative to the pivot 10 of a lever 11. The latter is outwardly urged by a spring 12 so as to press the respective roller 8 against the bore of the tube 1. There may be several masses 6 and the springs 7 may be of rubber.
Patent GB-954639-A (GB)
Title: Gear-operating mechanism for lathes and other similar or suitable appliances
Inventor: DENFORD GERALD HAROLD REGINALD
IPC: F16H3/16
Filed: 1959-01-24
Abstract: 954,639. Change-speed gear. DENFORD SMALL TOOLS (BRIGHOUSE) Ltd. April 25, 1960 [Jan. 24, 1959], No. 2673/59. Heading F2D. A sliding clutch and pinion change-speed gear for lathes &c. comprises a spindle 2 to which the chuck is attached or geared and a layshaft 9, the spindle 2 carrying an integral pulley 4A and pinion 5, and a sliding pinion 6, while the layshaft 9 carries a sleeve 10 with integral and sliding pinions 11, 12, respectively. Pulley 4A and pinion 6 are each formed with clutch dogs which are engaged as shown, for direct drive between pulley 4A and spindle 2. Upon disengaging the clutch members and sliding pinions 6, 12 into engagement with pinions 11, 5, drive is transmitted from pulley 4A, through pinions 5, 12, sleeve 10, and pinions 11, 6 to spindle 2. Pinions 6, 12 may be operated simultaneously by a forked hand lever.