baber/WOPTO huggingface dataset:
Patent GB-561105-A (GB)
Title: Improvements in or relating to thiobarbituric compounds
Inventor: SHONLE HORACE ABBOTT
Filed: 1942-04-30
Abstract: 5 : 5-Disubstituted thiobarbituric acids are prepared by condensing thiourea with a disubstituted malonic or cyanacetic ester in which one of the substituents is either an n-propyl or an n-butyl group and the other substituent is a 1-methylallyl group, and hydrolysing the imine as produced to the required thiobarbituric acid.  The compounds have the general formula: <FORM:0561105/IV/1> where R is either n-propyl or n-butyl and X may be hydrogen, an alkali metal, an equivalent of an alkaline earth metal, ammonium, monoalkyl ammonium such as -NH3.CH3, dialkyl ammonium such as -NH2(C2H5)2, and alkanol ammonium such as -NH3.CH2.CH2.OH.  It is important that the n-propyl- or the n-butyl-1-methyl-allyl ethyl malonate or ethyl cyanacetate should be free from isomers and, if necessary, a separation must be performed to remove any such isomer which may have been formed on standing.  In examples: (1) Thiourea and 1-methylallyl n-propyl ethyl malonate are added to a solution of sodium in ten times its weight of absolute alcohol and the mixture refluxed for 15 to 20 hours.  The alcohol is removed and dilute hydrochloric acid is added to an aqueous solution of the residue to form 1-methylallyl n-propyl thiobarbituric acid.  The corresponding n-butyl compound may be similarly prepared.  (2) Thiourea and 1-methylallyl-n-butyl-ethylcyanacetate are added to a solution of sodium in alcohol as in example (1) and the reaction mixture worked up as before to give 1 - methylallyl - n - butyl thiobarbituric acid. The corresponding n-propyl compound may be similarly prepared.  The preparation of the following intermediate compounds is also described:-  1 - Methylallyl - n - propyl - ethylmalonate is formed by the condensation of 1-methylallyl chloride with n-propyl ethylmalonate in the presence of a solution of sodium in ethyl alcohol.  The corresponding n-butyl compound is similarly prepared. Alternatively there may be condensed in a similar manner n-propyl chloride and mono-1-methylallyl-ethylmalonate.  1-Methylallyl ethylmalonate is made by condensing one mol. of ethyl malonate with about 1.1 mols. of 1-methylallyl chloride in the presence of a solution of 1 mol. of sodium ethylate in absolute alcohol.  1 - Methylallyl - n - propyl - ethylcyanacetate is prepared by reacting n-propyl chloride with 1-methylallyl ethylcyanacetate in the presence of a solution of sodium ethylate in absolute alcohol. 1-Methylallyl-ethylcyanacetate is prepared from ethyl cyanacetate and 1-methylallyl chloride in a similar way to the preparation of 1-methylallyl ethylmalonate.  Specification 457,762 is referred to.
Patent GB-643666-A (GB)
Title: Improvements in and relating to aprons for textile machinery
IPC: D01H5/74
Filed: 1947-02-28
Abstract: A draft apron for textile machinery comprising a body of rubber-like material in which is embedded a plurality of textile cords is prepared from synthetic resin compositions.  The following examples of synthetic resin compositions are given: (1) polymerized chloroprene, zinc oxide, magnesium oxide, "Cumar" (Registered Trade Mark), whiting and cottonseed oil; (2) butadiene-acrylic nitrile copolymer, zinc oxide, benzothiazyl disulphide, whiting and mineral oil; (3) olefine polysulphide resin, zinc oxide, diphenyl guanidine, benzothiazyl disulphide, whiting and stearic acid, these compositions being vulcanized for 30 minutes at 300 DEG  F. steam cure; and (4) "Glyptal" (Registered Trade Mark) resin, neoprene binder, and "Bakelite" (Registered Trade Mark) resin, and vulcanizing at 120 minutes at 300 DEG  F. dry heat.  The neoprene binder may comprise neoprene (polymerized chloroprene), litharge, wood rosin, phenylnaphthylamine, zinc oxide, "Cumar" (Registered Trade Mark), and medium oil. Specification 641,941, [Group VIII], is referred to.
Patent GB-763219-A (GB)
Title: Improvements in or relating to milling machine control system
Inventor: ROEHM ERWIN GRANT
IPC: F15B11/16
Filed: 1954-03-30
Abstract: 763,219. Copy-milling. CINCINNATI MILLING MACHINE CO. March 30, 1954, No. 5958/54. Class 83 (3). A machine-tool control-system comprises a pair of hydraulic motors 15, 17 for operating a pair of slides 12, 13 movable in angularlyrelated directions, conduit-means for connecting each of a pair of parallel valves 69, 70 with the respective motors, a shaft 37 adjacent the valves on a parallel but offset axis, an angularly-adjustable frame member 49 pivoted on the shaft and having an annular abutment 50 extending in a direction at right angles to the shaft, and rods 71, 72 between the abutment and the valves. The hydraulic motors 15, 17 drive rack-and-pinion gearing 16, 19. The slide 13 carries a cutter-head 93 and a tracer-headframe 38 on which is mounted a hydraulic motor 34 which is rotated in one or other direction according to the deflection of a tracer 30. The tracer causes movement of a conicallyended valve 25, 27 which directs fluid to the motor 34 by way of a short-circuiting valve 32 and a reversing valve 33. The motor 34 rotates the shaft 37 and the casing 43 of the valve-mechanism. Rotation of the shaft 37 with the ring 50 in the position shown in Fig. 2 causes no movement of the ends of the valve rods 71, 72 which are spaced apart by 90 degrees around the ring. If, however, the frame 49 and the ring 50 are tilted one way or the other by initial manual adjustment of sleeve 56 axially of the shaft 37, then rotation of the shaft causes movement of each valve. The path of the tracer and cutter is thus the vectorial resultant of the paths of the slides 12, 13 determined by the pattern 91 through the setting of the valve. The tracer 30 is slightly offset to anticipate the pattern. Specifications 753,620, 762,298 and 763,220 are referred to.
Patent GB-126421-A (GB)
Title: Improvements in or relating to Valves or the like.
Inventor: IONIDES ALEXANDER CONSTANTINE
IPC: F16K11/065
Filed: 1918-04-08
Abstract: 126,421. Ionides, A. C. April 8, 1918. Piston valves.-A valve device particularly applicable for controlling the supplies of air and gas to a combustion or heating device has long narrow ports simultaneously altered in length by manipulating a single actuating handle, one or both of the ports being independently adjustable in width. In the form shown, the two ports l, m are formed in hollow cylindrical liners i, j, the one i being rotatably adjustable by means of a lever k passing out through a slot in the casing so that the slot l may coincide more or less with a similar slot in the fixed casing. If both liners are adjustable, the arms may be connected together to ensure simultaneous angular adjustment. The slots are altered in length bv piston valves comprising tubular members p, p<1> closed at the top by disks p<2>, p<3> slotted to receive nuts o, o<1> on the spindles r, r<1>. The spindles pass out through stuffing-boxes f, f' and are coupled to a cross-head q adapted to be reciprocated by a screw s rotatably mounted in the cross-head and engaged by a nut formed in a bar connecting the two casings. The lower part of the screwed spindle is unthreaded and provided with graduations to act as an opening indicator.
Patent GB-666159-A (GB)
Title: Improvements in and relating to gas turbines
IPC: F01D5/08
Filed: 1949-03-04
Abstract: 666,159. Gas turbines. SIMMERING- GRAZ - PAUKER AKT. - GES. FUR MASCHINEN-, KESSEL-UND WAGGONBAU, and LEDINEGG, M. March 4, 1949 [Nov. 26, 1948], No. 5994/49. Class 110(iii) In a gas turbine in which the rotor blades have bores through which circulates a primary cooling liquid which itself is cooled by a secondary cooling medium, the primary cooling liquid flows upwardly in one or more large bores 9 into a space 16 at the tip of the blade and flows downwardly in a larger number of bores 7 of smaller diameter disposed near the surface of the blade. The vapour produced by the primary cooling liquid flows into the spaces 8 between the rotor discs 3 and from there through pipes 18 having inwardly projecting ends into the hollow space 25 within the rotor where it is condensed by the secondary cooling medium, which may be water, flowing in coils 26. Annular rings 19 are disposed around the rotor discs 3 to form a closed path for the primary cooling liquid. Hoods 6 are secured to the blade roots and extend radially inwards, the hoods standing above the level 15 of the cooling liquid which forms upon rotation of the rotor. Cooling liquid enters the bores 9 through transverse tubes having filter plates which are disposed within the hoods 6. Pressure gauges 41, 45 are provided to give an indication should the level 15 of the primary cooling liquid fall below the point 42. Specification 623,841 is referred to.
Patent GB-433957-A (GB)
Title: Improvements in or relating to the construction and treatment of road and the like surfaces
IPC: E01C11/24
Filed: 1934-02-23
Abstract: A bituminous composition for road construction comprises magnesium chloride, the particles of which are embedded in a bituminous or like substance such as tar, pitch, asphaltum, wax, paraffin, or the like.
Patent GB-1375662-A (GB)
IPC: E21D11/10
Filed: 1972-02-09
Abstract: 1375662 Wells &c HOESCH AG 9 Feb 1972 [27 Feb 1971] 6030/72 Heading E1F A lining cemented to a shaft or tunnel wall comprises abutting rings or arches formed by segments 3, the section of each segment having one flange thickened at 7a and the other flange offset at 8a. A seal 12 may be incorporated between adjoining rings and welds 13 may fix adjoining rings in their final positions. Longitudinal members 17 which take the thrust of a tunnelling shield may be removably fixed or welded to the rings. The ends of longitudinally arranged segments are welded to longitudinally extending bars, and seals are placed between adjacent pairs of bars before they are welded together.
Patent GB-159467-A (GB)
Title: Improvements in and relating to burners for oil stoves
IPC: F21V37/00
Filed: 1920-07-06
Abstract: 159,467. Central Oil & Gas Stove Co., (Assignees of White F. E., and Hooper, F. E.). April 4, 1916, [Convention date]. Wick burners, blue flame; burners, adjusting.- In an oil stove, an oil-tight connection is provided between a vertically movable burner and the oil-supply pipe supporting it. The invention is described with reference to an oil stove having blue flame burners h containing initial lighting mediums x and supporting combustion chambers consisting of concentric perforated tubes v, a bottom seat perforated section v<1>, and an upper section v<11> having a central opening. Oil is supplied from a reservoir of' the maintained oil level type through a pipe l having vertical extensions m in which tubes y on the burners are slidable. The upper part of each extension m is threaded externally and has its internal diameter reduced at b<1> to fit the tube y closely, the oil-tight connection being made by means of a nut z and asbestos packing a<1>. A wrench c<1> is mounted on the connection to facilitate adjustment or removal of the nut z. The burners are raised and lowered by means of handles o' mounted in long bearings p<1> on sheet metal brackets c<11> secured to the extensions m. The handles o<1> operate pinions n<1> engaging racks l<1> bolted in U-metal parts i<1> to brackets k<1> on the burners. The racks slide in ears h<1> in vertical extensions f<1> on the brackets c<11> and are provided with projections m<1> which extend through openings in the parts i' and act as steps to limit the movement of the burner. The handles o<1> carry pointers s<1> indicating on a front plate q<1> the position of the burner. Specification 147,078 is referred to.
Patent GB-747614-A (GB)
Title: Improvements in the viscosity stabilisation of polyamides
Inventor: HOWLETT FRANK
IPC: C08G69/02
Filed: 1953-03-05
Abstract: Polyamides are viscosity stabilized with o-phenylene diamine or a C or N substitution derivative thereof, the substituent group not being reactive with an amino or carboxy group.  Only one hydrogen on one amino group may be substituted.  The o-aromatic diamine may be included in the reaction mixture or may be reacted with the formed polyamide and is used in a quantity up to 4 mol. per cent of the dicarboxylic acid (in a dicarboxylic acid-diamine reaction) or of the amino-acid (in an amino-acid condensation). Twenty-nine suitable substitution derivatives are specified.  In examples (1) 225 parts hexamethylene diammonium adipate, 150 parts water and 1.02 part o-phenylene diamine are heated at 290 DEG  C. in an autoclave for 3 1/2 hours, the pressure then being released slowly.  The relative viscosity, dye uptake and carboxy and amino end group content are compared with those from a polyamide viscosity stabilized with acetic acid.  Example (2) is similar but using different polymerization conditions.  (3) A short chain polymer is made from hexamethylene diammonium adipate by heating at 220 DEG  C. for 3 hours.  To 10 parts of the polymer 0.046 parts o-phenylene diamine are added and the mixture heated at 285 DEG  C. for 30 minutes.  The relative viscosity and amino end group content of the polymer are compared with those of an acetic acid stabilized polymer.  Example (4) demonstrates the stabilizing effect of o-phenylene diamine when the polymer is heated at 285 DEG  C. for 1 hour.  In further examples 1 - methyl - 3 : 4 - diaminobenzene, 1 : 2 - dimethyl - 3 : 4 - diaminobenzene, 1 : 2-diaminonaphthalene, 1 - chloro - 3 : 4 - diamino benzene and N-methyl-o-phenylene diamine are used instead of o-phenylene diamine.  Specifications 461,236, 461,237, 495,790, 533,306 and 533,307 are referred to.
Patent GB-563104-A (GB)
Title: New or improved locking means for cycles to prevent unauthorised use or theft thereof
IPC: B62H5/14
Filed: 1943-04-19
Abstract: 563,104. Locking cycles against theft. WILDRIDGE, H. E. April 19, 1943, No. 6230. [Class 79 (iii)] Means for locking the front wheel of a cycle against rotation comprise a rod 7 carried within the handle-bar stem 1 and controlled. by a lock 6 at its upper end, whereby it may be moved axially, (1) to cause members 14 to grip the wheel rim 16, and (2) to connect the stem 1 and wheel' fork stem 2 against relative rotation, thus preventing the wheelgripping device from being loosened by twisting the stem 1 about the fork stem 2. In the construction shown, the rod is normally pressed down by a spring 19 to open a pair of jaws 14 pivoted at 17 and having a slotted connection with the rod. The rod is raised by means of a crank-pin 6a when a key is inserted in a lock fixed to the stem 1 and turned. The stem 1 is adjustable as usual in the stem 2 of the wheel fork 11 and is secured in any desired position by a clamping ring 3. When the wheel is locked as shown, a coned member 21, adjustable on the rod 7, enters the lower part 1a of the stem 1 and expands it against the stem 2, a cork sleeve 26 being interposed to provide a tight grip. This lower part 1a can rotate relatively to the part 1, but relative axial motion is prevented by a screw in one part engaging a groove in the other; thus the gripping members 14 cannot be released by rotating the handle-bars relatively to the fork, and thereby unscrewing the lower part 9 of the rod from the main part 7. In a modification, applied to a steering head of the kind having a central bolt for adjusting the height of the handle-bars, a pair of rods, one on each side of the central bolt, are used instead of the single central rod 7.
Patent GB-751126-A (GB)
Title: Improvements in or relating to methods of producing semi-conductive monocrystals
IPC: C30B13/10
Filed: 1954-03-03
Abstract: 751,126. Zone-melting process. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 3, 1954 [March 6, 1953], No. 6236/54. Class 82(1). [Also in Group XXXVI] A monocrystal semi-conductor having portions of different resistivities and/or different conductivity types is produced by placing the semi-conductor material 5 in an elongated vessel 1, producing a molten zone 3 which travels along the body so that a monocrystal is formed behind the zone, and adding acceptor or donor materials locally to the molten zone. The acceptor or donor impurity may be placed on the semiconductor as at 6 and 7. Germanium or silicon may be used, and heating may be effected by a high frequency coil 4.
Patent GB-703324-A (GB)
Title: Improvements in or relating to methods of and apparatus for generating, amplifying or converting ultra-high-frequency electric oscillations
IPC: H01J25/20
Filed: 1948-02-28
Abstract: 703,324. Velocity-modulated tubes. LELAND STANFORD JUNIOR UNIVERSITY, BOARD OF TRUSTEES OF. Feb. 28, 1948 [April 20, 1939], No. 6238/48. Drawings to Specification. Class 39(1) The subject-matter, a single-resonator oscillator with separated bunching and catching regions, is identical with Figs. 1 to 7, 9-12 of Specification 548,725, but the claims differ. Specification 523,712 is referred to. The Specification as open to inspection under Sect. 91, included (a) the subject-matter of Specifications 703,325 and 703,375 (i.e., all Figs. of Specification 545,146), (b) Fig. 8 of Specification 548,725 and (c) (Cancelled) Fig. 16 of Specification 548,725 (as open to inspection under Sect. 91). This subjectmatter does not appear in the Specification as accepted.
Patent GB-1167465-A (GB)
Title: A Method for the Recovery of Hydrocarbons
Inventor: ALTAMIRA ANTHONY F
IPC: E21B43/30
Filed: 1968-02-08
Abstract: 1,167,465. Wells. TEXACO DEVELOPMENT CORP. 8 Feb., 1968, No. 6311/68. Heading E1F. In a method of producing hydrocarbons from an underground formation using wells located at the vertices and on the sides of a triangle and a well located therewithin, fluid is introduced into the formation through the wells located at the vertices and hydrocarbons are withdrawn from the wells located on the sides until breakthrough thereat of the fluid, and then fluid is introduced through the side wells and hydrocarbons withdrawn from the well located within the triangle. Alternatively fluid may be initially introduced through the well located within the triangle and hydrocarbons withdrawn from at least the side wells, and then fluid is introduced through the side wells and hydrocarbons withdrawn from the wells at the vertices. The triangle may be an equilateral triangle, or an isosceles triangle with the tangent of the equal angles being .5. The method may be used for primary or secondary production and the fluid may be water or gas.
Patent GB-1449925-A (GB)
Title: Orbital sanders
IPC: B24B23/04
Filed: 1974-02-12
Abstract: 1449925 Grinding ROBERT BOSCH GmbH 12 Feb 1974 [13 Feb 1973] 06347/74 Heading B3D An orbital grinder comprises a grinding plate 15 adapted to be moved with a circular transiatory movement by a motor in a housing 10, the plate being resiliently supported, and ball friction gear 21, 23, 24 between a drive shaft 16 of the motor and the grinding plate for transmitting the movement to the plate. The housing 10 of the motor is secured by an intermediate plate 12 to a housing 13 of the grinder, the housing 13 being connected by rubber columns 14 to the grinding plate 15 which has clamps 28, 29 for holding grinding paper on the plate. The shaft 16 of the motor has a concentric pin 18 on which a ball race 19 and a bush 21 having a groove 22 are mounted. A flanged ring 24 is secured to the plate 15 and a ball 23 is disposed between the bush 21 and flanged ring 24, the ball being of such size that the plate is moved against the resiliency of the rubber columns a distance e relative to the axis of the shaft 16 and pin 18. Because of the frictional engagement between the ball 23 and the bush 21 and ring 24, rotation of the shaft causes orbital movement of the ball and imparts a circular translatory movement to the grinding plate. The movement of the plate is counterbalanced by a weight 26 mounted on the ball race 19 and having projections 27, 27<SP>1</SP> one each side of the ball. In another embodiment, the resilient connection between the plate 15 and housing comprises a rubber ring (33, Fig. 2, not shown). In a further embodiment, the counterbalance weight is also frictionally driven by a ball engaging an outer surface of a flanged ring on the grinding plate, the inner surface of the ring being engaged by the ball 23.
Patent GB-216936-A (GB)
Title: Improvements in high speed dynamo-electric machines for continuous current
IPC: H02K23/62
Filed: 1923-03-05
Abstract: 216,936. Kostenko, M., and Japolsky, N. March 5, 1923. Commutators and collecting-rings; rotary converters and transformers. - In a high-speed continuous-current generator with a stationary armature and rotating magnet, and collector rings and a commutator, all rotating at a lower speed than that of the magnet, in which the armature is connected to brushes on the rings and the rings are connected to the commutator segments, the product of the magnet speed and the number of its poles is equal to that of the commutator speed and the number of its brush rows. Fig. 2 shows a form in which the stationary armature S is connected to rings I II - - XVI, each of which is connected to three segments of a commutator K 120‹ apart. The bipolar magnet N, S is excited from the commutator. By means of gearing, the rings and commutator are driven at one third of the speed of the magnet. The leads from the stationary armature bars 1, 2, 3 - - to the brushes are brought out through ventilating ducts in the stator iron. The armature may have two independent windings, each connected to a set of rings and a commutator, as shown in Fig. 2, the terminals of the two commutators being connected either in series or in parallel. Fig. 5 shows the application to the conversion of alternating into continuous currents by means of a stationary armature S, supplied from a transformer T, and a rotating magnet R which drives a combination of slip-rings Q and commutator K as previously described. The apparatus is started by disconnecting the armature from the transformer, exciting the magnet from an external source and driving it independently until the voltages induced in the armature are in phase with those of the supply, as shown by synchronizing lamps. Connection is then made to the alternating supply, the magnet excitation is transferred to the continuous-current terminals of the commutator and the independent drive is removed. A form is also described. in which the transformer T is embodied in the armature structure and in which the commutator is driven by a synchronous motor from the alternating supply instead of from the magnet.
Patent GB-860566-A (GB)
Title: Improvements in the preparation of transparent electrically conductive layers
IPC: H01B1/00
Filed: 1957-02-26
Abstract: In a method of preparing an electrically conductive layer transparent to light of the visible and/or infra-red and/or ultra-violet range of the spectrum on a carrier body composed of siliceous material, a synthetic resin or a photosensitive material which is an element or a sulphide, a network layer of very fine metal particles is applied to the carrier body and a metal compound as a covering and filling agent is then applied to the network so as to pass through the spaces thereof and adhere to the carrier body.  The metal particles preferably have a size of less than 1000  .u., and are applied by rapid evaporation in vacuo, if desired with cooling of the carrier body, or by chemical reduction of a salt solution.  The metal compound is applied by reactive sputtering.  Exemplified layers are silver particles covered with indium oxide or zinc oxide, and gold particles covered with bismuth oxide.  Further layers such as of lacquer or for light-filtering or absorption purposes may be applied. The electrically conductive layers may be applied (i) to cathode ray tubes to reduce space charge effects and electron deflections, (ii) to mass spectrometers and electron optical systems to accelerate or focus electrons or remove space charge effects, (iii) to windscreens for infra-red reflecting and de-icing purposes, and (iv) in the manufacture of photo-conductive and photo-voltaic cells.