baber/WOPTO huggingface dataset:
Patent GB-1034595-A (GB)
Title: Improvements in the continuous casting of foam sheet material
IPC: C08G18/00
Filed: 1964-02-24
Abstract: 1,034,595. Sheet casting. SPECIALTY CONVERTERS Inc. Feb. 24, 1964 [Feb. 26' 1963], No. 7603/64. Heading B5A. [Also in Division B1] In a process for continuously casting thin foam sheets on a moving surface, a prepolymer reservoir and a catalyst reservoir are connected through separate circuits to a mixing head 10, - control means being provided to regulate the supply of the prepolymer and catalyst to a predetermined proportional relationship. The mixing head is movable transversely of the belt 13 and feeds the polyurethane foam mixture on to a plate which directs it between metering rolls 15, 16 having edge guides 17. A cover sheet 26 is fed from a supply roll 25. Gaseous expansion begins to occur after the rolls 15, 16 and the chemical reaction is advanced in heating zones 27, 28, 29 until the sheet becomes selfsupporting and non-tacky. The cover sheet and the carrier belt are then stripped from the foamed sheet which is conveyed back through the curing oven. In another example, the belt is moved in a convex path through the oven. The prepolymer reservoir comprises a double walled tank 43, Fig. 2 (not shown), containing an agitating propeller 60 and a wall scraping mechanism 51. A refrigerant is circulated in coiled pipes between the inside and outside walls of the tank 43. The catalyst is fed from a reservoir 80 to the mixing head by a pump 82, a return pipe between the mixing head and reservoir also being provided. The prepolymer pump is driven directly by a variable-speed motor which also drives the catalyst pump through a variable-speed drive which is pre-set to determine the proportion of pre-polymer to catalyst. The mixing head may comprise a housing 98, Fig. 7 (not shown), having a mixing chamber to which is fed the prepolymer via pipe 102, valve 103 and pipe 107, the catalyst via pipe 108, valve 109 and pipe 111 and air via tube 112. A screw type mixer 113 effects the mixing.
Patent GB-101327-A (GB)
Title: Apparatus for the Detection of Leakages in the Water Jackets of Blast Furnaces.
Inventor: BURT LAWRENCE STEVENS
IPC: C21B7/10
Filed: 1916-05-31
Abstract: 101,327. Burt, L. S., (Retuerto y Rizo, E.). May 31, 1916. Leakage in water jackets, detecting; indicators. -An apparatus for detecting leakages in the water jackets of blast furnaces comprises a chamber through which the water from the jacket passes, and at the top of which any gas forced from the furnace into the jacket is collected. The chamber 1 is connected to the outlet from the water jacket by a slightly inclined pipe 2 fitted with a controlling-valve 6 and pressure gauge 10. The water is deflected upwards in the chamber by a baffle 12 and is exhausted from the bottom bv a pipe 3 having an upwardly-turned end, and of a length equal to the height of the jacket above the ground. A gauge 5 indicates the level of the liquid within the chamber, and a thermometer may be fitted in the socket 11. Any gas which collects in the chamber may be expelled through the pipe 4, either by water from the jacket, or by pouring in water through the funnel 14 and pipe 13. In operation, the apparatus is connected up to the water jacket, and after the gas has been expelled by opening the valve 6 the two valves 6, 8 are adjusted until the gauge 10 indicates a pressure slightly greater than atmospheric. Any accumulation of gas in the chamber 1 will then indicate a leakage, probably between the furnace and the water jacket. The gas which collects may be expelled from the chamber and analysed, and the presence of carbon monoxide will confirm the existence of a flaw in the water jacket. In a modification, the chamber 1 is of glass, and the pipe 4 is fitted within and extends nearly to the top.
Patent GB-876634-A (GB)
Title: Thiocyanhydrins of the steroid series and a process for their manufacture
IPC: C07J31/00
Filed: 1958-03-10
Abstract: The invention comprises 5a -ol-6b -, 11b -ol-9a -, and 17a -ol-16b -thiocyano compounds of the steroid series, and the preparation thereof by reacting 5a ,6-, 9b ,11-, and 16a ,17-oxido compounds of the steroid series with thiocyanic acid or a salt thereof with an organic base such as pyridinium thiocyanate, preferably with the exclusion of light and in an inert atmosphere such as nitrogen.  An excess of thiocyanic acid gives advantageous results.  The steroid reactant may be saturated or unsaturated and may contain substituents such as keto and/or hydroxyl groups as well as the usual 17-side chains.  The products are useful as intermediate compounds for the introduction of -SH, -S-S-, -S-Alkyl, -SO3H and -OH groups, particularly at the 6- and 9-positions, and may also be converted into unsaturated thiocyanosteroids by splitting out water.  In the examples the following compounds are prepared: 6b -thiocyano-cholestan-3b ,5a -diol, 9a -thiocyano-11b -hydroxy- 17a-methyl-testosterone, 9a -thiocyano-hydrocortisone 21-acetate, 5a -thiocyano-allopregnan-3b ,6b -diol-20-one and 16b -thiocyano-D 5-pregnen-3b ,17b -diol-20-one 3,17-diacetate.
Patent GB-162489-A (GB)
Title: Improvements in or relating to perambulators and the like
IPC: B62B9/18
Filed: 1920-03-15
Abstract: 162,489. Marmet Baby Carriage Syndicate, Ltd., and Morriss, E. T. March 15, 1920. Springs, arrangement of.-In a spring suspension for perambulators &c., comprising two sets of tension springs connecting the body c to the frame a at each end as described in Specification 1217/12, a set of compression springs e is substituted for one of the sets of tension springs or is mounted between the two sets of tension springs. In a modification, a single compression spring may be mounted in a central position at each end of the body to bear against a cross-bar on the frame. The ends of the compression springs may be carried by studs e', or the springs may be mounted in telescopic tubular members pivotally mounted on the body and frame.
Patent GB-450562-A (GB)
Title: Improvements in latches and locks
IPC: E05B63/22
Filed: 1935-03-13
Abstract: 450,562. Locks and latches. WITHERIDGE, A. J., Linkside, Broadway, Walsall, and HALLDRON, C. R., Granville, Portobello, Willenhall, both in Staffordshire. March 13, 1935, No. 7756. [Class 44] A sliding plate 1 movable by a key which also actuates a tumbler 16 has two notches 5 receiving the flanged ends of cylindrical latch bolts 6, the latch bolts being thrust out to act as dead-locking bolts when the plate 1 is moved. Each bolt has a rounded or bevelled outer end and is bored at its inner end to receive a spring 8 seated on a projection 10 on the plate. A modification is described having a single latch bolt.
Patent GB-715094-A (GB)
Title: Improvements in rotating wing aircraft
IPC: B64C27/54
Filed: 1952-03-26
Abstract: 715,094. Helicopters. SAUNDERS-ROE, Ltd., and WATSON, K. Nov. 17, 1952 [March 26, 1952], No. 7761/52. Class 4 A mechanism for automatically and collectively changing the pitch of the blades of a helicopter rotor in the event of a power failure in order to initiate autorotation comprises a hollow drive shaft 10 formed at its upper end with a 45 degrees helical thread 17 co-operating with a threaded portion of the hub 18. A rod 22, axially movable within the shaft 10 carries a flange 23 at its upper end to cooperate with stop faces 24, 25 formed by a recess in the hub 18 to limit collective pitch change movement and at its lower end the rod terminates in a piston 11 which accommodates a ball head 12 of a pilot's pitch control rod 30. The ball carries a spider 13 connected by rods 15 to the pitch control arms on the blades 16, and the shaft 10 has a flange 20 to co-operate with stop faces 19, 21 in the hub. The torque couple on the helix is normally much greater than the lift couple so that in powered flight the shaft 10 and the hub 18 rotate as a unit with the lower face of the collar 20 in contact with the face 21. Release of the drive torque, however, will cause the lift on the rotor to displace the hub 18 upwardly until the collar 20 is held by the face 19, so causing an automatic change in the blade pitch to an autorotative setting. Specification 423,371 is referred to.
Patent GB-730503-A (GB)
Title: Dropping or pouring insert for liquid containers
IPC: B65D47/18
Filed: 1953-03-20
Abstract: 730,503. Drop delivery or pouring stoppers. BRUNE, H. March 20, 1953 [July 3, 1952], No. 7810/53. Class 125 (3). A polyethylene dropping or pouring insert 3, for bottles &c. with a retaining member with sealing flanges 4 has a liquid outlet duct 5 completely open or partly obturated with a small outlet 6, Fig. 4, surrounded by an annular chamber 10 having a cylindrical wall 7, a base 8 and air inlet aperture 9. The bottle may be closed by a stopper 15, Fig. 5, having a pin 18 to close the liquid outlet aperture 6. In a modification the insert has flow-retarding members in the duct 5 which may be tabs or threads or spirals.
Patent GB-894265-A (GB)
Title: Glycyrrhetinic acid esters
Inventor: GOTTFRIED SIEGFRIED
Filed: 1960-03-04
Abstract: The invention comprises dialkylaminoalkyl esters of 18b -glycyrrhetinic acid, wherein the alkyl groups contain 1 to 6 carbon atoms, and acid addition and quaternary salts thereof, and the preparation of the esters by reacting 18b -glycyrrhetinic acid with a dialkylaminoalkyl halide and subjecting the resulting haloalkyldialkyl-ammonium salt of glycyrrhetinic acid to the Horenstein-Pahlicke rearrangement (Berichte 71.  1644 (1938)), suitably by heating in an alcoholic medium.  Examples describe the preparation of the dimethylaminoethyl, diethylaminoethyl and bromocholine esters of 18b -glycrrhetinic acid.  Specification 843,133 is referred to.
Patent GB-350038-A (GB)
Title: Improvements in or relating to spring balances
IPC: G01G3/06
Filed: 1930-03-11
Abstract: 350,038. Spring balances. HARTMANN & BRAUN AKT.-GES., 97, Konigstrasse, and TROLL, G., 155, Wolfegangstrasse, both in Frankfort-on-Main, Germany. March 11, 1930, No. 7899. [Class 143.] A sensitive spring balance of the type wherein the load is balanced by a coil spring encircling the pivot of a weighbeam is provided with an adjustable zero point thereby permitting zero errors to be eliminated without influencing the spring. The beam a, controlled by a coil spring F, carries a hand b adapted to be brought into alignment with a zero mark n constituted by the end of a lever h. The position of the zero mark n may be adjusted by means of a screw i and spring f<1> without influencing the weighing spring F, contrary to the adjustment previously provided by means of a coil spring f<1> and knob g. The material to be weighed is suspended from a hook x, and its weight is ascertained by rotating a lever d carrying a pointer c attached to the outer end of the spring F, the rotation being continued until the hand b is brought into alignment with the zero mark n. In this position the pointer c indicates the weight. Specification 350,590 is referred to.
Patent GB-709015-A (GB)
Title: Improvements in or relating to apparatus for controlling electrically-operated sluice gates or valves automatically in accordance with a water level
IPC: G05D9/12
Filed: 1951-04-05
Abstract: 709,015. Automatic water level control systems. RANSOMES & RAPIER, Ltd. SNELL, M. H., and SPALL, G. W. July 3, 1952 [April 5, 1951], No. 7917/51. Class 38(4). In Fig. 6 a potentiometer Q controlled by a float (not shown) responsive to water level, and a potentiometer Q<SP>1</SP> controlled by the position of a sluice gate (not shown) controlling the level, are arranged in a bridge network to which a direct voltage is applied and which provides an output, on lack of correspondence between the position of the float and the gate, to energize, through thyratron valves P, the appropriate relay H or H<SP>1</SP> to cause a reversible electric motor (not shown), adjusting the gate, to run in the correct sense to restore correspondence and maintain water level at a desired value. Means are provided to maintain the motor in operation for a predetermined time or until it has effected a predetermined movement of the gate. In a modification, Fig. 4, particularly suitable when the float and gate are miles apart, movement of the float controls through a spring K5 the position of one moving coil K3 relative to its magnet K4, while movement of the sluice gate controls the position of the other moving coil K3 in a similar manner. Each coil K3 moves a contact K6 relative to opposed contacts K7 and K8 to control the bias of a thermionic valve L, the anode current of which, passing through the coil K3, re-centres contact K6. The anode currents of the valves L which are thus indicative of the position of float and gate respectively are applied differentially to a two-way relay F2 controlling the relays H, H<SP>1</SP>. In further modifications: (a) the output of a bridge circuit including potentiometers operated by the float and gate respectively is applied directly to a two-way moving-coil relay controlling the relays H, H<SP>1</SP>; (b) potentiometers operated by the float and gate respectively are arranged with rectifiers in a circuit to which an alternating voltage is applied and which provides a D.C. output component to operate a two-way relay controlling the relays H, H'; (c) the float and the gate vary an inductance and a capacity respectively in a resonant circuit to which an alternating voltage is applied and which provides an A.C. output to A.C. operated thermionic valves differentially controlling the energization of a two-way relay controlling the relays H, H<SP>1</SP>; (d) the float and the gate operate selsyn transmitters connected to a differential selsyn movement of the rotor which operates contacts corresponding to those of the relays H, H<SP>1</SP> Specification 347,976, [Group XXXVII], is referred to.
Patent GB-272996-A (GB)
Title: A process of and apparatus for manufacturing cyanides
IPC: C01C3/00
Filed: 1926-03-23
Abstract: 272,996. Stalhane, O. March 23, 1926. Resistance furnaces.-A furnace for manufacturing cyanides is shown, in which briquettes 29 are fed by means of a plunger 23, reciprocated by an eccentric 25, through metal or fireproof pipes 6 heated by resistances 26. The pipes 6 are loosely supported within larger metal pipes 13, each of which has an inlet 28 for nitrogen and an outlet 19 leading into a water-container 20 provided with a transport screw 21. The pipes 13 are surrounded by heat-insulating material 14 and have openings 16 through which pipes 6 may be removed. Nitrogen is introduced through pipes 27, 28, from the latter of which it passes round the heating resistance 26 to prevent oxidation. The pipes 6, if of metal, may be heated by passing a current through them. The section of the pipes may be circular, elliptical, rectangular, &c., and they may be arranged vertically, horizontally, or inclined. The pipes 6 may be constituted by two concentric pipes, between which the charge is fed.
Patent GB-677328-A (GB)
Title: Improvements in or relating to endless driving and conveying chains and belts
Inventor: HIGGINS EDWARD GEORGE
IPC: F16H7/12
Filed: 1949-03-24
Abstract: 677,328. Endless conveyers. MINISTER OF SUPPLY. June 21, 1950. [March 24, 1949] No. 8122(49. Class 78 (i). [Also in Groups XXII, XXIII and XXIV] The tension of an endless conveyer band 7 having at least a portion thereof extending along boom 1 rotatable about an axis 1b into a number of different positions is maintained constant as the boom structure is rotated about said axis by means of two wheels 2, 4 in engagement with the endless member of the conveyer or drive, one wheel 2 being free to idle on the said axis while the other 4 is capable of epicyclic motion around the first, under the control of the rotatable boom structure. As shown the two runs of the band 7 pass from a pulley 6 at the head of boom 1 over pairs of sprockets 2, 4 and 5. The wheels 4 are mounted for epicyclic motion on a director arm 3 mounted for rotation about the axis 1b, the boom 1 and arm 3 being interconnected by gearing (not shown) such that as boom 1 is rotated about axis 1b arm 3 rotates at one quarter the speed. The wheels 5 are mounted on a relatively fixed framework (not shown) on which the driving pulley for the band is mounted.
Patent GB-1362301-A (GB)
Title: Arrangement for measuring and evaluating the main cutting force of  a lathe
IPC: G01N3/58
Filed: 1972-02-22
Abstract: 1362301 Measuring force electrically WERKZEUGMASCHINENKOMBINAT "7 OKTOBER" BERLIN VEB 22 Feb 1972 8127/72 Heading G1N [Also in Division B3] To measure the cutting force of a cutting tool 8 in a tool holder 7 in a housing 1 mounted on a lathe, the tool holder is carried by a shaft 3 which is rotatably mounted on bearings 4, 5 and is provided with an arm 9. The end of the arm 9 is disposed between two pre-stressed force measuring cells 13. Rotation of the arm increases the pressure on one cell and decreases that on the other. The corresponding electric outputs are applied to a differential electric circuit to obtain a measure of the force.
Patent GB-415172-A (GB)
Title: Improvements in the catalytic oxidation of ketones
IPC: C07C51/31
Filed: 1933-03-17
Abstract: Apparatus for the oxidation by means of air or oxygen of cycloaliphatic ketones to dibasic acids in presence of an oxidation catalyst, comprises a vertical cylinder with a fritted glass filter at the bottom for dispersing the oxidizing gas.  The cylinder may be of glass, ceramic material, or alloys such as chrome nickel steels or nickel alloys free from iron, and, filter bodies of the same materials may be used.ALSO:Dicarboxylic acids are produced by the oxidation in the liquid phase of cycloaliphatic ketones by means of oxygen or air in the presence of oxidation catalysts.  Suitable ketones are cyclopentanone, cyclohexanone, and methyl - cyclohexanone, and suitable catalysts are metals having an atomic weight between about 50 and 200 such as vanadium, chromium, iron, manganese, cobalt, nickel, copper, molybdenum, the rare earth metals such as cerium, praesodymium, neodymium, lanthanum, samarium, the terbium earths, tungsten, platinum, iridium osmium, and gold, or the oxides, carbonates, chlorides, sulphates and carboxylates (e.g. formates, acetates, propionates, stearates, oleates, tartrates, and enolates such as acetyl acetonates), manganese and cobalt, preferably in the form of formates, acetates, or acetyl-acetonates being especially useful.  The ketones may be dissolved in solvents such as carboxylic acids having 1--3 carbon atoms or their methyl or ethyl esters, or halogenated hydrocarbons such as carbon tetrachloride or chlorbenzene.  The use of acetic or formic acid as solvent is advantageous when a metal catalyst is employed, as the metal is then readily dissolved.  When an acid is not employed as solvent, it is advantageous to add a small quantity of one of the acids mentioned to help to initiate the reaction.  The reaction may be effected at 50--120 DEG  C. and at atmospheric or higher pressure, such as up to 20 atmospheres, and the reaction vessel may be a vertical cylinder with a fritted glass filter at the bottom for dispersing the oxidizing gas.  The vessel may be of glass, ceramic material, or alloys such as chrome-nickel steels or nickel alloys free from iron, and filler bodies may be used of the same materials.  Examples describe the oxidation of cyclohexanone to adipic acid, and methyl cyclohexanone to methyl adipic acid, the ketone being dissolved in glacial acetic acid containing manganese acetate.
Patent GB-786789-A (GB)
Title: Improvements in or relating to torsional vibration dampers
Inventor: HIRST ARCHIE JOHN
IPC: F16F15/14
Filed: 1955-03-21
Abstract: 786,789. Motor vehicle driving gear. METALASTIK, Ltd. March 9, 1956 [March 21, 1955], No. 8136/55. Class 79(2) [Also in Group XXXII] A torsional vibration damper (see Group XXXII) for the propeller shaft 6 of a motor vehicle comprises a ring-like inertia member 13 co-axial with a hub member 12 associated with the transmission to the shaft 6, and three or more equi-spaced rubber vibration - damping elements 14 clamped in radial relation between the hub 12 and the member 13.
Patent GB-967869-A (GB)
Title: Process for preparing a modified starch derivative of reduced water-solubility
Inventor: THAYER FREDERICK D
IPC: C08B31/00
Filed: 1962-03-02
Abstract: A modified starch derivative of lower water solubility than the parent derivative is made by reacting, in aqueous medium, with a polyaldehyde, a starch amide containing two hydrogen atoms attached to the nitrogen atom, or a starch aminotriazine ether, adjusting the pH to 4-11 and drying the product. The parent starch derivative may be e.g. starch propionamide, starch 2,4-diamino -striazine ether, and starch carbamate. The starch derivatives may be made from granular or pasted, raw or modified starches, amylose or amylpectin. Specified polyaldehydes are dialdehyde starch, glutaric aldehyde, a -hydroxy-adipic aldehyde and glyoxal. A water-resistant film may be made by adjusting the pH of a gelatining paste of the parent starch derivative and polyaldehyde to 4-11, casting the paste on a support, and drying. A mixture of the parent starch derivative, polyaldehyde and clay may provide a water-resistant, adhesive coating for paper.ALSO:Paper is coated with a water-resistant adhesive comprising the reaction product of a starch amide containing 2 hydrogen atoms attached to the nitrogen atom, or a starch aminotriazine ether, with a polyaldehyde.  The pH is adjusted to 4-11.  In examples, paper is coated with adhesive compositions containing starch propionamide, kaolin and dialdehyde starch or glyoxal.
Patent GB-489450-A (GB)
Title: Improvements in drawing or gill frames for flax, wool and other fibres for forming slivers or yarn
IPC: D01H5/10
Filed: 1937-03-20
Abstract: 489,450. Gill drawing - frames. GREEVES, Ltd., J. & T. M., and EVES, R. V. March 20, 1937, No. 8228. [Class 120 (i)] In a gill drawing-frame of the push-bar type for flax, wool, &c., means are provided for varying the holding capacity of the paths or tracks a, Fig. 1, for the push-bars. In one form, the plates or blocks carrying the paths a are divided, each forward part A<1> being fixed to the carriage plate 1 and each rear part A<2> being carried by swinging arms or members P so as to be adjustable to and from the part A<1>. The arms P are pivoted to the carriage plates 1 on studs or pins H and the part A<2> is fixed thereto by studs L. The parts A<1>, A<2> are tapered to overlap at U. The shaft 4 carrying the driving wheels is mounted in bearings in the arms P. In another form, the part A<2> is carried .by a sliding plate P<1>, Fig. 3, and is adjustable by means of slots d, d<1>. In a modification of the first arrangement, an additional swinging arm P<2>, Fig. 5, may be provided to give a preliminary adjustment of the arm P. The arms P on the two sides of the machine are adjusted simultaneously by an eccentric F on a shaft E or by means of pins moved by the action of inclined slots. Specification 448,890 is referred to.
Patent GB-1489989-A (GB)
Title: Alpha,alpha-diaryl-beta-(tert-amino)-propanols processes for their preparation and pharmaceutical compositions containing them
IPC: C07D295/084
Filed: 1975-02-27
Abstract: 1489989 α,α, - Diaryl - # - (tert - amino)- propanols TEMMLER AG 27 Feb 1975 [4 March 1974 26 Feb 1975] 8236/75 Heading C2C Novel compounds II and their salts in which R<SP>1</SP> and R<SP>11</SP> are C 1-6  alkyl or NR<SP>1</SP>R<SP>11</SP> is a 5- or 6-membered ring and R<SP>1</SP> to R<SP>10</SP> are H, halogen, C 1-6  alkyl, C 2-3  alkenyl, OH, C 1-4  alkoxy, or benzyloxy or any two adjacent substituents together form a 5- or 6-membered heterocyclic ring and the other substituents are as defined above with the proviso that at least one of the rings A and B contains two or more substituents are prepared by reacting a compound III with a Grignard solution in diethyl ether, of magnesium and a compound IV wherein R<SP>1</SP> to R<SP>5</SP> are as defined above except for C 2-3  alkenyl but may additionally represent a vicinal dibromo-C 1-3  alkane. Compounds I have saluretic activity and form with a carrier or diluent a pharmaceutical composition which may be administered orally, parenterally or rectally.