baber/WOPTO huggingface dataset:
Patent GB-773222-A (GB)
Title: Improvements relating to electric discharge devices and circuits thereof
IPC: H01J17/06
Filed: 1954-08-26
Abstract: 773,222. Converting. GENERAL LABORATORY ASSOCIATES, Inc. Aug. 26, 1954 [Sept. 11, 1953], No. 24842/54. Class 38 (2). [Also in Groups XXXVI and XL (a)] A tube having a semi-conductor thermionic cathode 8 capable of very rapid heating (see Group XL (a)) is used in a converting circuit where the cathode heating circuit is separately energized every cycle. As shown, a battery 14 energizes an interrupter 15 and transformer 18 to produce a high alternating voltage across condenser 20. In each cycle, when this voltage exceeds the breakdown voltage of spark-gap 22, heating current for cathode 8 passes through primary 23 and at the same time a voltage is induced in secondary 26. As soon as the tube conducts, a rectified voltage is applied to reservoir condenser 27 whence it may be transferred by switch 29 to load 30. When the spark-gap 22 goes out the cathode cools down ready for the next cycle.
Patent GB-831900-A (GB)
Title: Hydroxypropylation of hydroxy compounds
Filed: 1957-08-07
Abstract: The invention comprises the octakis-(2-hydroxy-propyl) ether of sucrose, 1 : 2 : 3-tris-(2-hydroxy-propoxy)-n-propane, the 1 : 2 : 3 : 4 : 5 : 6-hexakis-(2-hydroxypropyl)-ether of sorbitol and tetrakis-(2-hydroxypropoxymethyl)-methane and the preparation of these and certain other 2-hydroxy propyl ethers by reacting propylene oxide with glycerol, pentaerythritol, an n-hexitol or a sugar containing not more than 8 hydroxy groups in the presence of a catalytic amount of triethylamine or tripropylamine under a pressure sufficient to maintain the reactants in the liquid state.  In the reaction, each hydroxyl group of the polyol reacts only with one molecule of propylene oxide and each resulting hydroxypropoxy group so formed is inert towards propylene oxide. The specificity of the reaction allows glycerol to be reacted with 1 mol. of propylene oxide to form the a -ether, with 2 mols. to form the a  : g -ether and with 3 mols. to form the triether, without formation of other products. Examples describe the preparation of the first-named four ethers using excess of propylene oxide in the presence of triethylamine or tripropylamine, the products being obtained free from products p having polyoxypropylene chains; it is stated that with trimethylamine as catalyst the excess propylene oxide is used up with formation of polyoxyalkylene chains.  The products of the examples may be used as humectants, as plasticizers for paper (see Group VIII), regenerated cellulose sheet and cellulose ethers and for the production of alkyd and polyurethane resins and when esterified with a carboxylic acid such as acetic, propionic or benzoic acid they yield esters also suitable as plasticizers for cellulose resins.  Specifications 317,770, 375,842, 584,971 and 765,477 are referred to.
Patent GB-743235-A (GB)
Title: Improvements in or relating to the construction and mounting of the rotatable parts of a hydro-electrical unit operating about a vertical axis
Inventor: DANEL PIERRE FRANCOIS
IPC: F03B3/12
Filed: 1953-09-08
Abstract: 743,235. Mounting rotors of electric generators. ETABLISSEMENTS NEYRPIC. Sept. 8, 1953, No. 24876/53. Class 35. [Also in Group XXVI] The rotor core of a vertical spindle water turbine driven generator is carried on a flanged ring secured to a downwardly extending conical support the smaller end of which forms part of the connection to the shaft. As shown, the flanged member 38 secured to the turbine wheel 3 houses the servomotor for adjusting the blades and is connected through members 35, 42 and 45 with the conical member 48 forming with ring 13 the support of the rotor core. The member 45 carries the thrust ring while sleeve 35 rotates in bearing 34. The exciter rotor 63 may be mounted on the cover 52 forming part of the upper closure of the rotor spider. In other forms, a solid turbine shaft may be used, and the servomotor may be mounted inside the hollow rotor spider.
Patent GB-790832-A (GB)
Title: Improvements in or relating to reflecting prisms
Inventor: STRANG JOHN MARTIN
IPC: G02B5/04
Filed: 1953-09-09
Abstract: 790,832. Photographic apparatus. BARR & STROUD, Ltd. Aug. 10, 1954 [Sept. 9. 1953], No. 24892/53. Classes 97(1) and 98(1) Both sides of a diametral reflecting surface in a solid of revolution are reflecting and the reflector may be rotated at high speed in a high speed camera. Preferably the reflecting surface is plane and the solid of revolution is a sphere. As shown, reflectors 35, 36, sweep a beam of light from object 39 around a circular arc of lenses 47, 48 which form images on a stationary film 49. Reflectors 35 and 36 rotate about a common axis and, preferably, a continuous film 49a, b, c is disposed so that semicircular portions 49a and b are exposed in uninterrupted succession as the reflectors 35, 36 synchronously rotate through half a revolution. No exposure takes place on portion 49c of the film, since it is disposed between the planes of the reflected light beams. The beam diagram of the lens system 40, 41, 42 and 48 is shown in Fig. 5. It is stated that there is no movement of the images on the film if an intermediate image is formed at the axis of the reflectors. The reflectors may be provided with notches at the ends of the reflecting surface 38 for engagement by rotating means. Specification 790,833 is referred to.
Patent GB-502254-A (GB)
Title: Improvements in or relating to waterborne craft
IPC: B63B1/38
Filed: 1937-09-14
Abstract: 502,254. Hydroplane vessels. WHITE & CO., Ltd., J. S., and CAREY, H. C. Sept. 14, 1937, No. 24964. [Class 113 (ii)] Air is supplied to the ends of the space behind the step by conduits, the forward ends of which are shaped so that the air in them acquires a pressure corresponding to the velocity of the craft. In one form chocks D, E are secured to the side of the hull and covered by a plate G, these forming an air duct F. The edge G<1>, of the plate is curved inwardly. In a modification air is supplied to the vertical face of the step at its ends by a duct, the outer end of which is provided with louvres projecting from the side of the craft.
Patent GB-954191-A (GB)
Title: Agricultural chemical compositions
Inventor: HARTLEY GILBERT SPENCER
IPC: A01N25/08
Filed: 1959-07-22
Abstract: Methyl dibutylamine stearate and tri-n-propylamine stearate are prepared by reacting stoichiometric amounts of the amine and stearic acid.  Specification 738,665 is referred to.ALSO:A pesticidal or herbicidal composition comprises a fungicide, pesticide, herbicide or plant growth regulant and a mixture or salt of an amine of more than 6 carbon atoms with a long chain saturated aliphatic carboxylic acid of at least 13 carbon atoms in the chain.  Specified pesticides and herbicides are cuprous oxide; copper oxychloride; nickel hydroxide; tetramethyl thiuram disulphide; zinc and manganese ethylene - bis - dithiocarbamic acid; DDT; B.H.C.; a -naphthyl ester of N-methyl carbamic acid; aldrin; dieldrin; bis-N : N : N1 : N1-tetra - methyl - phosphorodiamidic anhydride; O,O - dimethyl - S - (N - methyl - carbamoylmethyl) phosphorodithioate; N - para - chloro phenyl - N1,N1 - dimethyl - urea and 2 - chloro-4 : 6 - bisethylamino - triazine. The compositions may be in the form of aqueous suspensions or solutions, pastes or powders and may additionally contain surface active compounds in which the hydrophilic property is derived from condensed alkylene oxide of the block polymer or complex type, alcohols of 3-5 carbon atoms and anti-flocculants.  Many amines and saturated carboxylic acids are specified, e.g. tri-n-propylamine dimethylcycloheyxlamine, benzyldimethylamine and dimethylbutylamine and stearic acid, palmitic acid and myristic acid.  Specification 738,665 is referred to.
Patent GB-1221542-A (GB)
Title: Wide band switching crosspoint system
Inventor: HINZE ROBERT E
IPC: H03K17/62
Filed: 1968-05-25
Abstract: 1,221,542. Transistor switching circuits; exchange systems. VISCOUNT VIDEO SYSTEMS Ltd. 29 April, 1969 [25 May, 1968], No. 25139/68. Headings H3T and H4K. In a switching system having N inputs any one of which is connectable to any one of N outputs (Fig. 1, not shown) by an appropriate gate (30), each gate increases the current load on its input circuit when it is blocked and to avoid this, means such as a transistor Q3, Fig. 3, disconnects the input A1 from the gate (e.g. Dy, Dx) when the gate is blocked, so that the input impedance of the gate circuit is increased. When the gate is unblocked by a + 15 V potential at D1, the diode Dy is reverse biased and the diode Dx (whose cathode is held at + 7 V by a divider R4, R5) conducts the input at A1, after it has passed through the transistor Q3, to the output line. When a nearly zero voltage at D1 allows Dy to conduct and Dx to be reverse biased, so that the gate is blocked, the current in Dy flows through R6 and R L  and causes Q3 emitter to fall in potential sufficiently to turn off the transistor. Thus Dy current is drawn from the + 18 V supply and not from the input A1, which is further isolated by a capacitor C2. Cross-talk due to the capacitance of the reverse biased diode, and to low input impedance is thus much reduced. A further transistor (Q2, Fig. 4, not shown) with its emitter-collector path between R5 and R4 and its base connected to the wiper of a potentiometer R9 is used to adjust the output levels (at B1).
Patent GB-1434915-A (GB)
Title: Automatic turret lathes
IPC: B23B29/24
Filed: 1972-05-30
Abstract: 1434915 Operating tool slides WARNER & SWASEY TURNING MACHINES Ltd 6 July 1973 [30 May 1972] 25186/72 Heading B3T In a method of machining a workpiece from bar stock in an automatic turret lathe a cross slide 30 is mounted on a tool turret 10 which is axially displaceable parallel to the lathe spindle axis, the cross slide 30 carrying a parting-off tool 60 and being urged into a retracted position by a spring 54, a rear cross slide 24 mounted on the bed carries a roller member 76 which, upon action of the rear cross slide, engages the surface 72 on the turret cross slide to push the slide and hence the parting-off tool towards the axis of the workpiece 20 carried by a chuck in the work spindle to effect a parting-off operation. A stock stop 96 carried on a lever 88 is supported on bracket means 80 attached to the turret 10 and is normally spring urged to pivot transversely out of axial alignment with the stock axis in the lathe spindle. However, when the parting-off operation is completed the retraction of the turret cross slide effects, by way of lever 122 engaging pin 100 on the stop mechanism, pivoting of the stop into axial alignment with the bar stock in readiness for the bar feed operation through the work spindle. The release of the stock stop, in order to permit it to pivot out of alignment with the newly fed stock, is effected with the indexing of the turret and its axial displacement to bring other turning tools into their operating position, in which the axial displacement of the turret effects, by cooperation with a traverse stop 136 and engaging plunger 150, the actuation of a release mechanism to pivot the lever 122 to release the pin 100 and allow the stock stop to pivot by the action of the spring 106 and plunger 102.
Patent GB-318513-A (GB)
Title: Improvements in furnace walls
IPC: F23M5/08
Filed: 1929-08-19
Abstract: 318,513. Nygaard, O. Sept. 4, 1926, [Convention date]. Bricks for furnace walls. - A furnace wall comprises a series of parallel tubes to which are secured refractory bricks having extensions projecting between adjacent tubes and provided with sockets for receiving pins extending substantially parallel with the tubes and holding the bricks to the tubes by engagement with their rounded surfaces. As shown in Figs. 2, 3 and 4, the refractory bricks 3, which may be made of fireclay, silicon carbide or the like, are approximately T-shape in section and have a tongue 4 which projects between adjacent tubes 2. Sockets 5, 6 are provided on one or other sides of the upper and lower portions of the tongues 4 to receive pins 7 of metal or silicon carbide which serve by their engagement with the tubes 2 and bricks 3 to secure the bricks in position. In the modification shown in Fig. 7, the sockets 11 are wedge shape adapted to receive similarly shaped wedges 10 having a curved surface in contact with the tubes. The tongues 4 are shorter than those shown in Fig. 3 so that the outer enclosing wall (not shown) may be brought nearer to the tubes. Also where the tubes are employed for superheating steam, bricks 3<11>, Fig. 10, which expose a considerable portion of the tubes are employed. Filling blocks 8 having inclined upper and lower edges to engage with corresponding inclined edges on the bricks above and below and held in place by gravity are inserted in the wall and are adapted to be readily removed when it is desired to remove any of the bricks 3 from the inside of the furnace.
Patent GB-259615-A (GB)
Title: Improvements in or relating to electric arc furnaces
IPC: H05B7/152
Filed: 1926-10-11
Abstract: 259,615. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). Oct. 9, 1925, [Convention date]. Regulation, automatic systems and apparatus for.-The motor f operating the furnace electrode d is supplied with current by a dynamo a<1> the field excitation of which is controlled by a vibrating regulator which may be of the Tirill type. The dynamo has a field winding b constantly energized from a 220 volt supply h and a winding c in opposition thereto. The winding c has twice the number of ampereturns of b and its excitation is controlled by the regulator so that the dynamo may supply current in either direction at 0 to 110 volts. The current coil i of the regulator is energized by the bar transformer j and the voltage supplied to the coil k is the algebraic sum of the constant voltage and the dynamo voltage. The dynamo a<1> is driven by a motor g which also operates dynamos a<2>, a' in a three-phase furnace.
Patent GB-534632-A (GB)
Title: Improvements in or relating to screening or similar devices for domestic fireplaces
IPC: A47G5/04
Filed: 1939-09-07
Abstract: 534,632. Screens for fireplaces. GARRETT, J. H. Sept. 7, 1939, No. 25302. [Class 52 (iv)] [Also in Group XI ] A firescreen which affords protection against falling embers and also serves to control or suppress combustion in domestic firegrates, comprises a fireproof curtain 24 mounted on a spring roller 23 arranged in a housing in front of the fireplace and adapted to be raised or lowered to suit requirements. The curtain may be placed close to the fireplace or spaced therefrom. An additional transparent curtain 48, which may be ornamented, mounted on a spring roller 47 may also be employed, when fires are not used. In applying the curtain to a fireplace of the kind shown, vertical adjustable rods 10 are secured between the hearth and upper part of the fireplace opening. The rods 10 carry brackets 15 and turnbuckles 17 are secured to the rods 10 and brackets 15 and acted on by springs 19, 20. The outer ends of the brackets 15 carry adjustable arms 16a provided with sockets 16 to receive pins 21 on side plates 22 which carry the spring roller 23. The curtain passes over guide rollers one 27 of which is mounted on arms 28 secured to the side plates 22 and tensioned by springs. The lower end of the curtain is provided with a metal strip 24a. The inner surface of the curtain is cleaned by brushes 31. When it is desired to lower the curtain in spaced relation to the fireplace, adjustable arms 33 are lowered to a position such as that shown in dotted lines and locked in position and the curtain is carried over a U-section bar 32 supported on the arms. The bar 32 has hinged thereto adjustable rods 38 which rest on the hearth when the curtain is in use and are folded up inside the bar 32 when not required for use. Specifications 9077/92, 21644/98, 17242/08, [all in Class 126], 329,058 [Class 52 (iv)], and 410,939 [Group XI], are referred to.
Patent GB-1212320-A (GB)
Title: Process for the polymerisation and copolymerisation of olefins
Inventor: DELBOUILLE ANDRE
IPC: C08F4/70
Filed: 1969-05-19
Abstract: 1,212,320. Olefin polymerization using supported catalyst. SOLVAY & CIE. 19 May, 1969 [12 June, 1968], No. 25322/69. Addition to 1,140,649. Heading C3P. Olefins are polymerized in the presence of an organometallic compound and a solid obtained by reacting, in the absence of a liquid diluent, a liquid halogen-containing compound of a transition metal and a solid support comprising an oxygen-containing compound of Mn, Co, Ni, Fe or Sn having a low hydroxyl content. In the examples, ethylene is homopolymerized in the presence of Al(-i-C 4 H 9 ) 3 - TiCl 4 -MnO, NiO, Co 2 O 3 , Fe 2 O 3  or SnO reaction products in hexane in the presence of hydrogen.
Patent GB-223937-A (GB)
Title: Improvements in or relating to fireplaces and the draft control thereof
IPC: F24B1/188
Filed: 1924-10-27
Abstract: 223,937. Bennett, J. S. Oct. 25, 1923, [Convention date.]. Open fireplaces; air-heating fittings; grates; draught, regulating; fenders. - Apparatus for controlling the draught of an open fireplace and for heating the room, comprises an air-heating conduit supplied with air from outside the room and the outlet from which is regulated by means of a damper which directs the air into the room or into the chimney, communication with the room being cut off in the latter case. In the fireplace shown, air is supplied from outside the room bv conduits 15, 14 to hollow andirons 4 and thence, by a manifold 5 bridging their rear ends, to pipes 6 extending over the back of the fireplace. The horizontal upper ends of these pipes terminate in a manifold 7 having outlets 8, 9 respectively to the room and to the throat 3 of the chimney, the outlets being simultaneously controlled by a damper 11. Fig. 2 shows a modification in which air supply conduits 14<1> form a guard to retain the fuel on the hearth. The Specification as open to inspection under Sect. 91 (3) (a) comprises also on open fireplace in which the draught is checked by air supplied to the throat of the chimney by a damper controlled conduit extending through the back of the fireplace, no air-heating means being provided. This subject-matter does not appear in the Specification as accepted.
Patent GB-848719-A (GB)
Title: Trialkylsiloxy monoaryl silicon compounds
IPC: C07F7/08
Filed: 1958-08-08
Abstract: Siloxanes of the formula :  <FORM:0848719/IV(a)/1> wherein R1 is an alkyl radical, R1 is an arylradical and n is 1, 2 or 3, may be made by slowly reacting mixtures of a hydrolysable trialkysilane and a hydrolysable monoarylsilane in a ratio of between 1 and 3 mols of the former to 1 mol of the latter, with as many mols of water as gram atoms of oxygen are stoichiometrically required for the formation of the siloxane bonds.  In the Example, water is injected into a stirred mixture of (CH3)3 SiCl and C6H5 SiCl3 during the course of 3 hours, the mixture being cooled to below room temperature as the reaction proceeds and HCl escapes.  The mixture is then heated to 100, C for a further hour and any residual HCl is subsequently neutralised.  After filtration the mixture is fractionally distilled under vacuum to yield tris-(trimethylsiloxy),phenylsilane, tetrakis - (trimethylsiloxy) - 1,2 - diphenyl - disiloxane, pentakis - (trimethylsiloxy) - 1,2,3 - triphenyl - trisiloxane and hexakis-(trimethylsiloxy)-1,2,3,4-tetra-phenyl-tetrasiloxane. Uses : as heat transfer agents, liquids in thermometers and thermoregulators, working fluids for high vacuum diffusion pumps and as intermediates for making other siloxane oils, lacquers, resins and rubbers.
Patent GB-368242-A (GB)
Title: Improvements in pocket match packets
IPC: A24F27/20
Filed: 1930-08-28
Abstract: 368,242. Cases for matches &c. KRAUSS, J., 37, Gartenstrasse, and LœCK, W., 35, Calwerstrasse, both in Stuttgart, Germany. Aug. 28, 1930, No. 25750. Convention date, Oct. 11, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 18 and 94 (i).] A pocket match case or packet of the type in which the matches are ignited as they are withdrawn, has the matches arranged in two groups side by side and spaced apart to leave a space for finger pressure while the matches are being withdrawn. The packet is formed from a strip of stout paper or cardboard g divided by fold lines into three main portions. The matches b are attached lightly by adhesive at e to one end portion, a space a being left between two groups of the matches. The ignition surfaces are provided at c. The portion of the strip carrying the matches is cut at h to form a flap which is turned down to expose the ends of the matches. The strip is folded to the form shown in Fig. 4 to form a match packet the subsidiary compartment d being useful for cigarettes or like articles. In a modification the case is formed by folding the strip g<1>, Fig. 5, about the fold line i, the packet thus formed being, if desired, rolled to a cylindrical form, the axis of the cylinder being parallel to the matches. Here again the central portion of the cylinder may be used as a receptacle for cigarettes.
Patent GB-1164707-A (GB)
Title: Hose Storage Cabinet and Retracting Device
Inventor: SMITH BERNARD JOHNSTONE
IPC: B05B15/00
Filed: 1967-06-05
Abstract: 1,164,707. Hose storage cabinet. DE VILBISS CO. Ltd. 23 May, 1968 [5 June, 1967], No. 25824/67. Heading B8M. A hose cabinet and retracting device in which each hose 3 is stored in a vertical loop about a pulley block 6 from a fixed point to an exit orifice, is provided with a counterweighted cable 10 carrying the pulley block 6 and connected with a partially toothed ratchet wheel controlled by a spring loaded pawl, the arrangement being such that free withdrawal of the hose is always permitted and retraction of the hose is automatically achieved upon a deliberate positioning of the ratchet wheel. A stop is preferably provided on the hose to prevent full retraction into the cabinet, and a tubular guide is preferably provided at the exit orifice of the cabinet. The pawl is provided with one rounded face and one straight acute angled face and is spring biased towards a radial position relative to the ratchet wheel. The ratchet wheel is provided with an arcuate set-back portion in which the pawl assumes the radial position, retraction of the hose is then permitted with the rounded face of the pawl riding over the teeth of the ratchet wheel.
Patent GB-616130-A (GB)
Title: Improvements relating to cocks for fluid pressure conduits
IPC: F16K5/20
Filed: 1946-08-28
Abstract: 616,130. Multiple-way valves. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd. Aug. 28, 1946, No. 25827. Convention date, Jan. 19, 1944. [Class 135] A stop-cock for fluid pressure conduits, particularly those on railway vehicles, has a part-spherical obturating member 1 rotatable to cover an exhaust aperture 5 when the cock is open and to uncover said aperture when the cock is closed. The aperture 5 is uncovered by an extension 2 of the member 1 when the main aperture 3, connected for instance to a vehicle brake pipe, is completely closed. The member 1 is operated by a handle (not shown) and is rotatably mounted on a spindle 8 by means of a slot 11 1 so that the obturating member may be pressed against a rubber or other plastic sealing gasket 6 surrounding the aperture 5 by the fluid pressure within the cock casing. The aperture 3 also has a sealing gasket 9. Specification 405,921 is referred to. According to the Specification as open to inspection under Sect. 91, the exhaust aperture 5 may be obturated by a separate spherical member carried by the member 1 or otherwise operated in unison therewith. This subjectmatter does not appear in the Specification as accepted.