baber/WOPTO huggingface dataset:
Patent GB-969896-A (GB)
Title: Process and apparatus for preparing polyester resins and products resulting therefrom
IPC: G05D9/00
Filed: 1961-01-03
Abstract: <PICT:0969896/C3/1> Alkyd resins are prepared at least partially or are after-processed in an inert organic solvent in an amount of 30-70% of the alkyd or its components under superatmospheric pressure whereby resins having a smaller amount of low and high molecular weight components are produced.  The process may be effected (a) by reacting a mixture of a polycarboxylic acid, a polyhydric alcohol and a fatty acid, at least the latter part of the reaction being effected in the presence of the solvent with reflux of solvent and removal of water; (b) effecting an alcoholysis reaction between a triglyceride oil and a polyhydric alcohol under conventional conditions, then adding the balance of the alkyd formulation and the inert solvent and proceeding as above; (c) heating a preformed alkyd in the presence of the solvent with little or no change in acid number and removal of any water of reaction.  Specified are:-polycarboxylic acids-phthalic, isophthalic, maleic, fumaric, adipic, sebacic, dimer and trimellitic acids; polyhydric alcohols-ethylene glycol, propylene glycol, glycerol, pentaerythritol, dipentaerythritol, trimethylol propane, trimethylol ethane and sorbitol; monocarboxylic acids-various vegetable, marine and animal oils and their fatty acids, also pelargonic, benzoic, p-tertiary butyl benzoic and cyclohexane carboxylic acid and resin; solvents-aliphatic, cycloaliphatic and aromatic hydrocarbons and chlorinated aliphatic and aromatic hydrocarbons boiling at 66 DEG -215 DEG C.  The resins may be made in an apparatus comprising an autoclave 10 connected to a condenser 12, a condensate and water trap 14 and a solvent return pump 19.  Various valves in the apparatus are so arranged that the autoclave 10 may be operated under increased pressure and in this case a valve 44 is automatically adjusted to establish system equilibrium between the high pressure reacted by the reaction and solvent and the normal pressure in the condenser and trap.  Also the pump 19 operates to draw the solvent condensate from the trap 14 and force it back into the reactor 10.  Examples describe the preparation of alkyds from phthalic anhydride, soya fatty acids and pentaerythritol together with glycerol or ethylene glycol. The resin may be compounded with the usual metallic driers and with butylated melamine-formaldehyde resins.
Patent GB-1176121-A (GB)
Title: Improvements in or relating to Grid Electrodes for Electron Tubes.
IPC: H01J19/30
Filed: 1968-01-02
Abstract: 1,176,121. Electrode materials and processing. SIEMENS A.G. 2 Jan., 1968 [4 Jan., 1967], No. 258/68. Heading H1D. In a grid electrode, e.g. for a transmitter tube, in which the grid wire or element consists of a high melting point metal, such as Mo or Ta, with a coating of zirconium, zirconium oxide is incorporated in the electrode either as an addition to the base metal of the grid wire or element in an amount of 0À1 to 2À0% by weight, or in the zirconium coating which is formed from a zirconium powder prepared by the incomplete reduction of zirconium oxide and having a zirconium oxide content of from 10 to 50% by weight. When the zirconium oxide is present in the coating, its content therein is preferably 25% by weight. It is stated that the presence of zirconium oxide at the grain boundaries of the wire metal prevents the undesirable diffusion thereat of zirconium itself.
Patent GB-685806-A (GB)
Title: Apparatus for briquetting finely granular materials
IPC: B30B11/20
Filed: 1951-01-03
Abstract: 685,806. Roller-and-ring briquetting machines. HUBMANN, O. Jan. 3, 1951 [Jan. 23, 1950; Oct. 17, 1950], No. 275/51. Class 87 (ii). Pulverulent or granular material e.g. ores, coal, peat, is briquetted in moulds arranged in a groove in either the ring or the roller of a ring - and - roller machine, the moulds being arranged in such a manner that adjacent briquettes are joined by an interconnecting rib which breaks when the mould opens. In the construction shown in Fig. 3 the roller 2, comprising two screw-threaded parts 3, 4, contains moulding channels 7 which co-operate with an annular pressing member 5 on the ring 1. The pressing member carries ribs 8 for subdividing the pressed material. The briquettes are ejected by a loose ring 6 whose diameter is larger than the least diameter of the groove in which it lies. In the construction shown in Fig. 4 the moulds are provided by chamfering the annular pressing member 13 alternately to the right and left, ribs 18 being left between the chamfered portions. The ejection ring comprises two closely fitting parts 16, 19. The moulds of Fig. 5 are arranged side by side in the roller 31, dividing ribs being provided on the ring 32. The feeding mechanism may comprise a chute or a centrifugal wheel and the discharge mechanism may be in the form of a spur against which the briquettes are carried.
Patent GB-631392-A (GB)
Title: Apparatus for comparing angles
IPC: G01B5/24
Filed: 1947-01-03
Abstract: 631,392. Gauging-apparatus. BOOTH, C. H., and STOKES, C. Jan. 3, 1947, No. 305. [Class 106 (ii)] [Also in Group XX] An instrument for gauging the flatness of a vertical surface of a body comprises a table 1, Fig. 1, to which is attached a plate 3, fitted with gauge inserts 16, Fig. 5a, of a wear-resisting material and a dial indicator 17 mounted for freedom of movement about two horizontal axes on a connector block 6 carried by a movable arm 2 which is accurately mounted in the side of the table 1. The body whose flatness is to be gauged is placed on the table 1 with the surface to be tested in contact with the inserts 16 and the indicator plunger moved over the surface as the body is moved horizontally over the table.
Patent GB-575044-A (GB)
Title: Glass severing apparatus
IPC: C03B33/095
Filed: 1944-02-22
Abstract: 575,044. Glass tubing &c. CORNING GLASS WORKS. Feb. 22, 1944, No. 3282. Convention date, June 1, 1943. [Class 56] In an apparatus for cutting off lengths of glass tubing or the like issuing from a continuous drawing machine, the tubing 11 at the point at which it is to be cut is heated by a ring burner 30 supported by a horizontally-reciprocating carriage C. Movement of the carriage in the heating direction is effected by the forward movement of the tubing itself so that the heat plays on the same portion of the tubing throughout the heating, and in the .form shown the reverse movement of the carriage is also effected by the continued forward movement of the tubing. In other forms during the forward movement of the carriage, a chain connected thereto becomes somewhat tightened and the weight of the sagging chain is used to effect the reverse movement of the carriage. Forward movement of the carriage is effected by fluid-pressure operated chucks 28, Fig. 4, carried by the carriage, being moved to grip the advancing tubing, the chucks being mounted in a member rotating concentrically about the tubing so as to compensate for the rotating motion of the tubing. During this forward movement of the carriage a cable 31 secured to the carriage is uncoiled from a drum 32 secured to a wheel 33 in a pivoted frame 34, the frame being moved by a piston and cylinder mechanism 36 to raise the wheel out of contact with the tubing. Control of the fluid pressure to and from the cylinders 25 operating the chucks 28 and to the cylinder 36 is effected by a cam 45 on the carriage operating valves 42, 43 which in turn operate the fluid pressure supply valve 41, and the operation of the piston and cylinder 36 is so timed that when valve 43 is operated to exhaust the chuck cylinder, it swings the frame 34 so that the wheel 33 contacts the tubing still issuing from the drawing machine and is rotated thereby to rewind the cable and retract the carriage. The valves 42, 43 are adjustably mounted to control the timing and thereby to determine the lengths of the tubing to be cut. The cutting is effected by the contact of a chilled iron or shoe 50 with the heated glass ; an adjustable stop may be placed-beneath the shoe to prevent it from falling into the path of the oncoming tubing. In a modification, the supply of fluid pressure to the chucks is controlled by a solenoid operated by a cam driven from the driving mechanism of the drawing-machine.
Patent GB-770703-A (GB)
Title: Improvements in or relating to letter-box covers
Inventor: HARRISON WILLIAM DOUGLAS
IPC: A47G29/126
Filed: 1955-01-05
Abstract: 770,703. Letter-box covers. HARRISON (BIRMINGHAM), Ltd. Jan. 2, 1956 [Jan. 5, 1955], No. 346/55. Class 18. A letter box cover in the form of a canopy 10 with closed ends 11 is secured to the inside of the door 13 above the letter box opening 14, by a flange 12 and supports a curtain 19 by a detachable bar 17. The canopy 10 extends downwardly and rearwardly from the flange 12, and has an upturned lip 15 forming a channel-shaped guide 16 which receives the slidable bar 17 of channel section having a handle 18. The bar 17 receives the upper edge of the curtain 19 which screens the back of the opening 14. The letter box has the usual spring-loaded closure flap.
Patent GB-249939-A (GB)
Title: Equipotential cathode tube
IPC: H01J1/20
Filed: 1925-01-06
Abstract: 249,939. Western Electric Co., Ltd., (Western Electric Co., Inc.). Jan. 6, 1925. Thermionic valves. - An equipotential-cathode tube has the cathode made thermionically active by an electric heating device placed outside the tube. In the construction shown, the wall 1 of the tube is of conductive material and forms the cathode. A grid 2 and an anode 3 are arranged within the tube and are supported by a glass stem 4 which is sealed on to the wall 1. The inner face of that part of the wall which constitutes the cathode is coated or otherwise lined with electron emitting material, such as alkaline earth oxides, and this material is rendered active by a heating-device 6 placed outside the coated part of the tube and connected to a source of current 7. In a modification, the walls of the tube are of glass, and the cathode may be of sodium or other alkali metal.
Patent GB-620197-A (GB)
Title: Improvements in or relating to fuel-systems for gas-turbine engines
IPC: F02C7/22
Filed: 1947-01-07
Abstract: 620,197. Fluid-pressure servomotor-control systems. DAVIES, K. R. Jan. 7, 1947, No. 584. [Class 135] [Also in Groups XXVI and XXVIII] A pump 38 driven from the turbine delivers oil through an orifice 33. A turbine control lever 35 positions a valve 34 and the pressuredrop across the orifice 33 is used to determine the rate of supply of fuel to the combustion chambers. In the pump shown, a swash-plate 15 is driven by an oblique crank 16 on a turbinedriven shaft and the stroke of the plungers 11 is varied by an axial shift of the crank. This is effected by a piston 17 subjected on one side to the pressure of a spring 25 and on the other to the fluid pressure in the space 39. This fluid pressure is maintained by a turbine-driven pump 26 and is varied by means of a leak valve 29. The leak valve is directly connected by an arm 30 to a capsule 31 which is subjected to the pressure-drop across the orifice 33. A delaying action is imposed by a second capsule 41 connected to the cylinder 18 and provided with a restricted orifice 40. It is connected to the arm 30 by a hook device 42 with some lostmotion. Flow in and out of the cylinder 18 is by way of the orifice 40 and distortion of the capsule 41, beyond the amount of the lost motion, will oppose the action of the capsule 31. The area of the orifice 40 may be varied by means of a barometric device. In the pump shown, the suction and delivery valves are ports 22 in a disc 20. The disc is toothed peripherally and meshes with a fixed annulus 23. It is given a gyratory motion by an eccentric 19 on the shaft of the crank 16. The cylinders 12 have separate delivery pipes 13, each to its associated burner 14, and the flow in the pipes 13 is smoothed by means of crossconnected passages containing pistons 24. Specification 618,486, [Group XXVI], is referred to.
Patent GB-547406-A (GB)
Title: Improvements in or relating to internal combustion engine installations
IPC: F01P1/02
Filed: 1941-01-17
Abstract: 547,406. Cooling cylinders and exhaust. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and THOMAS, F. M. Jan. 17, 1941, No. 705. [Class 7 (ii)]  In an air-cooled engine installation, the cold air for cooling the engine, the air which has become heated in cooling the engine and the exhaust gases are so disposed in ducts 15, 25, 24, that the cold air and the exhaust gases are separated by the heated air. As shown, the installation comprises radial-cylinder engines 10 which are arranged coaxially face-to-face in a casing 17 in the fuselage of an aircraft and drive airscrews through laterally extending shafts 13. Air is admitted through the ducts 15 in the wings to a space 12 between the engines, and is deflected by tubular partitions 19 over the cylinder heads and barrels as described in Specification 547,404. The heated air then passes around exhaust rings 22 and the tailpipes 24 to outlets 28 at the rear of the wings. Oil coolers 26 may be arranged in ducts 27 branched. from the air ducts 15 and leading to the outlet duct 25. Specifications 546,630, [Group XXXIII], 547,403 and 547,405 also are referred to.
Patent GB-706762-A (GB)
Title: Improvements in or relating to connecting means for caps used in mining, more particularly for pivot-jointed steel caps
IPC: E21D17/086
Filed: 1949-01-11
Abstract: 706,762. Mine roof supports. DOLLERY & PALMER (PNEUMATIC TOOLS), Ltd., (Soc. d'Etudes et de Recherches Industrielles et Minieres (S.E.R.I.M.)). Jan. 11, 1949, No. 765/49. Class 20 (2). [Also in Group XXV] I-section. bars for mine roof support are connected end to end for pivotal movement in a vertical plane by connecting means at one side of the web so that the longitudinal axes of the bars are displaced from one another by an amount not exceeding the thickness of the web. In Fig. 3 plates 2 fixed to the sides of the webs 2' of the I-section bars are joined by a pin 3' passing through holes in the plates and secured by a ring 3a and split pin 4 connected by a chain 5. The bars may be aligned by a shim between the plates. In Fig. 5 a plate 8 is welded to the flanges at one end of each bar and carries a pin 3' adapted to pass through plates 11 fixed to each side of the web at the other end of another bar. In a further modification the plates 11 may be in the form of a U and a sliding bolt locks the parts together. In another modification a pair of plates welded to the flanges at each side of one end of a bar carry a pivot pin 3, Fig. 10, having a flattened part 19 to enable it to be passed into and locked in holes in plates 21 welded to the web of another bar. The pin on one connecting plate may have a radially directed stud which registers with an arcuate opening in the other plate when the bars are assembled which stud moves out of register with the opening when the bar is moved to working position and locks the parts.
Patent GB-209753-A (GB)
IPC: B23P9/04
Filed: 1924-01-10
Abstract: 209,753. British Ulco Co., Ltd., (Assignees of Metallbank und Metallurgische Ges- Akt.-Ges.). Jan. 11, 1923, [Convention date]- Void [Published under Sect. 91 of the Act]. Bearings.-Bearing liners of scft metal such as alloys containing a large proportion of lead are consolidated in their shells by applying, as the radial component of an axial thrust through the base of the liner, a radially directed pressure on the bearing surface, without entailing any appreciable cutting of the metal at the surface. The pressure may be progressively increased in stages, each stage being preferably separated by an interval of time during which the metal is maintained by holding means, against recovery from the strain to which it has been subjected at the previous stage. The operation may be performed by a cylindrical drift the leading edge of which is bevelled so as to apply the pressure without appreciable cutting of themetal at the bearing surface. Where the pressure is applied in stages a stepped drift with bevelled sections of successively increased diameter is used. In the form shown the stepped drift consists of a series of separate sections 1 of successively increased diameter connected together by spigots 3 and sockets 4. The pressure is applied by the bevelled portions 2 which are slightly rounded and the metal is held against elastic recovery by the cylindrical portions, and is also polished thereby.
Patent GB-574207-A (GB)
Title: Improved apparatus and method for drying disintegrated foodstuffs, grain and the like
IPC: F26B11/04
Filed: 1944-01-17
Abstract: 574,207. Drying apparatus. ANDERSEN, A. T. FRIIS-, and MURCH, W. R. Jan. 17, 1944, No. 856. [Class 34 (ii)] Disintegrated foodstuffs, grain, &c., is dried by heated air during downward passage through a kiln 1 which is divided into tiered stages A, B, C by trough-shaped partitions 21, 22, 23, alternate partitions stopping short of opposite sides of the kiln so as to permit heated air to flow upwardly in a sinuous path and each being formed with a channel 19 locating a screw conveyer 11, 12, 13, the first two conveyers traversing the material across the kiln to openings 19a at the ends of the corresponding locating channels, where it falls on to inclined chutes 20, preferably reticulated, and the third delivering the material to an outlet 32 which may, if desired, lead to a cooling chamber. The chutes 20 are suspended at one end by links 33, which may be pivoted to vertically adjustable brackets, and they are agitated or rocked by eccentrics 24 through links 25, the eccentrics being driven by the same motor, not shown, which rotates the conveyers 11, 12, 13 and also a further conveyer 10 between the outlet 9 of a cyclonic preheating chamber 5 and the upper conveyer 11. Drying air, which is heated by passage over grille heat-exchange tubes 30, is forced through the kiln by a fan disposed at the bottom thereof, and is exhausted by an upper fan 8 to a conduit 4 which is provided with a material supply hopper 6 and projects tangentially into the peripheral wall of the chamber 5. Heating conduits 31 leading from the tubes 30, may be located in the upper stage A of the kiln.
Patent GB-283487-A (GB)
Title: Improvements in floor treating machines
IPC: A47L11/18
Filed: 1928-01-10
Abstract: 283,487. Inventia Patent-Verwert-. ungs-Ges. Jan. 10, 1927, [Convention date]. Planing.-An electrically operated machine for smoothing, cleaning or polishing floors comprises two or more operating rolls, discs or like members adapted to be brought individually into a position for use, and to take the weight of the machine when in the operative position. In the construction shown in Fig. 1, an electric motor 2 is mounted in a cylindrical casing 1 which carries two discs 6 adapted to be driven, through bevel gearing, from the shaft 3 of the motor. The discs 6, each of which is mounted reversibly, are provided on opposite sides with material 7 for treatment of the floor, so that the machine contains means for smoothing, cleaning, waxing, and polishing. Means may be provided for disconnecting from the motor shaft the disc which is in the inoperative position. The discs 6 are fitted with rubber rims, and may act as wheels for the machine when it is not in use. The Specification as open to inspection under- Sect. 91 (3) (a) refers to the smoothing operation. being effected by steel chippings. This subjectmatter does not appear in the Specification as accepted.
Patent GB-442966-A (GB)
Title: Improvements relating to strainers for foot-valves
IPC: F04B53/10
Filed: 1935-01-10
Abstract: 442,966. Moulding processes. HOWL & CO., Ltd., L., and HOWL, C., Tipton, Staffordshire. Jan. 10, 1935, No. 907. [Class 83 (i)] [See also Group I] A cast iron strainer a for use with a foot valve of a pump suction pipe is of such a conical, and preferably stepped, shape that the slots or perforations d can be formed in the wall by an outer mould part having projections or corrugations on its inner surface in association with a plain inner mould part shaped to the desired inner surface of the strainer. According to the Provisional Specification, the projections may be on the core of the mould.
Patent GB-372255-A (GB)
Title: Process for the manufacture of 3.5-diiodo-4-pyridone
Filed: 1932-01-12
Abstract: 3 : 5-Diiodo-4-pyridone is obtained by acylating diiodo-chelidamic acid with an acyl anhydride and saponifying the 3 : 5 diiodo-4-pyridone acyl compound.  According to examples acetic anhydride and benzoic anhydride are specified as acylating agents.
Patent HK-99192-A (HK)
Title: Storage box for disc-shaped information carriers with a high recording density
Inventor: GROBECKER HERMANN
IPC: G11B23/02
Filed: 1992-12-10
Abstract: High storage density information carriers, particularly optically readable video discs and digital records, can only be read error-free by a playback device when the high requirements made of freedom from warping also remain guaranteed over long storage times. A cassette is provided to support and fix an information carrier only within its central portion which is free of information tracks and, by a sufficient spacing of the information carrier in the support-free area between a bottom portion and a cover portion contact with the information carrier in this area is avoided, even given consideration of maximally-admissible warping tolerances of the storage cassette and of the information carrier.
Patent JP-S61160853-A (JP)
Title: Optical recording medium
Inventor: SAWAMURA MITSUHARU
IPC: G11B11/10
Filed: 1985-01-07
Abstract: PURPOSE:To improve the corrosion resistance of a recording medium by providing a protective film consisting of a nitride, carbide or a mixed film composed of the nitride and carbide and a metallic film between an undercoating layer consistingof silicon oxide and optical recording layer provided adjacently to a substrate. CONSTITUTION:This optical recording medium is constituted by forming the undercoating layer 2 consisting of silicon oxide on the writing side substrate 1a, providing successively a protective film 8, metallic film 9, recording layer 3, spacer layer 4, reflecting layer 5 and protective layer 6 thereon and pasting further said substrate via an adhesive layer 7 to a substrate 1b for protection. The undercoating layer 2 consisting of the silicon oxide is thus provided adjacently to the substrate 1a and the protective film 8 consisting of the nitride or carbide or the mixed film composed of the nitride and carbide as well as the metallic film 9 consisting of Al, Cr, etc. are provided between at least said undercoating layer 2 and the optical recording layer 3, by which the oxidation of the recording ayer 3 is prevented and the corrosion resistance of the recording medium is improved.
Patent JP-S61162448-A (JP)
Title: Method of wind-up film
Inventor: MORITA AKIRA
IPC: B65H18/00
Filed: 1985-01-07
Abstract: PURPOSE:To make it possible to reduce or eliminate the occurrence of micro- globule traces, by winding up a high frictional coefficient plastic film having a smooth surface onto a spool core formed of a plastic pipe having a surface roughness Ra which is greater than 1mum but less than 6mum. CONSTITUTION:In the case of wind-up of a smooth polyester film onto a plastic spool core having a surface roughness Ra which is greater than 1mum but less than 6mum after lathing, a large amount of air exists between the film and the core upto several tenth to several hundred millimeters in the initial stage, and serves as a cushion member so that micro-protrusions may be reduced. Thereby the problem of rubbing or catching may be reduced, and therefore, micro-globule trances may be greatly reduced. Further, the entanglement of a suitable amount of air restrains the glowth of micro-globule traces or serves to eliminate the same. Further, it is particularly effective for a polyethylene terephthalate film having Ra less than 0.015mum and a thickness of 5-30mum.