baber/WOPTO huggingface dataset:
Patent GB-772969-A (GB)
Title: Method of printing on continuous metal bands
IPC: B41F23/04
Filed: 1955-07-19
Abstract: 772,969. Feeding webs. MADSEN, A. V. BORSCH-. July 19, 1955 [July 24, 1954], No. 20839/55. Class 100(2) A metal band which is printed on at a plurality of successive printing stations (e.g. in multi-colour printing) and heated after each printing to dry the colour, is subjected to a controlled cooling operation after each heating operation so as to be given a constant predetermined temperature over the length to be printed before entering each printing station, to avoid variations in length and ensure correct registration. Preferably the temperature of the band is the same at each station, in which case the diameters of the printing rollers would be the same. The band may be heated or cooled to a predetermined temperature before entering the station. Cooling may be by passing over cooling roolers or by air-cooling.
Patent GB-1069128-A (GB)
Title: Calculator decimal point alignment apparatus
IPC: G06F3/027
Filed: 1965-05-17
Abstract: 1,069,128. Electronic calculator apparatus. WYLE LABORATORIES. May 17, 1965 [June 12, 1964], No. 20845/65. Heading G4A. Decimal point alignment apparatus comprises a memory store having at least one register including a number of stages, one of which is identified by decimal point identifying means, means for storing a number in the memory, the most significant digit of the number being stored in an arbitrarily chosen stage and the rest of the digits being stored in adjacent stages, apparatus for initiating an align operation and apparatus for shifting the stored digits until the least significant digit in the whole portion of the number is stored in the stage identified by the decimal point identifying means. In operation in a computer of the kind described in Specification 1,031,235 a number is manually entered into the store with the most significant digit or initial digit entered into the most significant digit sector, the next significant digit into the next sector and so on until the number to the left of the decimal point is centred. An align key 62 is then pressed, causing the number to be shifted until the number is aligned with the predetermined decimal point position. During the edit operation flip-flop L0 is set by the Od pulse provided once each memory cycle and acts with bit pulse P1 and a pulse K<SP>1</SP>DC which is a coincidence pulse KDC delayed by one digit period. KDC is produced by a comparison circuit between a digit counter 18 (Fig. 1, not shown) and a control counter 56 and signifies which digit position is being examined. If the digit examined is one or more positions to the left of the decimal point AND gate 82 sets flip-flop L1 which in turn sets L2 during resetting pulse Od at the end of each memory cycle and causes a shift right pulse to be applied to shift right means 38 (Fig. 1, not shown). During the subsequent cycle L1 is reset when the K<SP>1</SP>DC pulse coincides with the decimal point indicating pulse Kp thus resetting at the end of the cycle, creating a terminating pulse and stopping the shift right means. The input and output amplifiers and heads for a magnetic disc memory are positioned one digit space apart (Fig. 2, not shown) and the digits are shifted right by connecting the output amplifiers directly to the input amplifiers (Fig. 4, not shown). An overflow gate 100 indicates when the number inserted has too many digits for them all to be situated to the left of the decimal point.
Patent GB-358142-A (GB)
Title: Manufacture of materials for road construction
IPC: C08L95/00
Filed: 1930-07-10
Abstract: A bituminous composition, for producing a rough surface on roads, comprises a natural or petroleum asphalt having a melting point above 55 DEG  C.  Kramer Sarnow, an oil or solvent boiling between 150-400 DEG  C., and a small porportion of rubber.  Suitable oils and solvents are oils distilled from coal, mineral oil, wood, shale, or the like, gas oils, solvent naphtha, low viscosity tars and natural oils such as Texas oil.  The rubber is preferably added in solution in benzole, benzine, solvent naphtha, tar oil, &c.  The mixture may be emulsified.  In an example, 840 kg. of petroleum bitumen of melting point 90-100 DEG  C. are melted and mixed with 120 kg. of gas oil.  To this mixture is added 40 kg. of a 5 per cent solution of rubber.  Existing roads which have been made of bituminous material of sufficiently high melting point may be roughened by treating with an oil or solvent, having a boiling point between 150-400 DEG  C., containing rubber in solution.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also compositions not containing rubber.  This subject-matter does not appear in the Specification as accepted.
Patent GB-748420-A (GB)
Title: Improvements in or relating to machine tools
IPC: B23Q39/04
Filed: 1953-07-29
Abstract: 748,420. Multiple - spindle drilling &c. machines. LINSTEDT, B.. July 29, 1953 [Aug. 1, 1952], No. 21001/53. Class 83 (3). A vertical multi-station machine-tool comprises a rotatably indexable turret 3, Fig. 1, carrying work-holders 4 for the workpieces 15, the holders projecting from the turret periphery and each being rotatably-adjustable about an axis radiating from the turret axis. Toolspindles 5 are located around a bed 2 at the work stations, one station being free for the loading and unloading of work, and are movable upwardly to operate on the work, each spindle being driven by a motor 6 through feed-means 20. Each holder has a disc 8, Fig. 2, with peripheral locking-notches 8a engageable by a spring-loaded plunger 9, and a toothed disc 7 meshing with pinions 14 driven by racks 10. Follower-rollers 10a on the racks, and rollers 11a on levers 11 for operating plungers 9, coact with cams 12, 13, respectively, fixed to the bed, so that as the turret is indexed from one station to the next, the plungers are withdrawn, the holders are angularly adjusted and the plungers re-engaged. The workpieces are clamped by jaws 23 actuated by hydraulic piston-and-cylinder mechanism controlled by levers 24. A protective hood 22 prevents the scattering of swarf and cooling liquid.
Patent GB-294216-A (GB)
Title: An improved method of and machine for drawing glass tubes or rods
IPC: C03B15/14
Filed: 1928-07-20
Abstract: 294,216. Salomon, R. July 20, 1927, [Convention date]. Glass furnaces.-Relates to a method of, and apparatus for, making glass tubing or rod by drawing the glass vertically upwards from a pot or container. The drawing pot 2, Fig. 1, has an annular cover 3 formed with a cylindrical sleeve 4 that dips into the glass 5. The pot is kept charged with glass from a tank furnace by means of a spout inserted through an opening 10, and the temperature of the glass is maintained by a gas flame which is directed along the space 14 within the cover 3. Alternatively, batch may be melted in the pot. A heat insulated metal casing 1 encloses, the pot, and the cover 19 of the casing supports a ball race 31 on which a toothed ring 29 rotates. The ring carries a number of tubes 33 which extend downwards and support a refractory sleeve 6 that dips into the glass 5, both ring and .sleeve being coaxial with the pot 2. A motor 22 rotates the ring 29 and the sleeve 6, and the rotation of the sleeve stirs and mixes the glass 5. A hollow boss 8 extends upwards from the bottom of the pot 2 and is formed with an axial hole 9. The space in the interior of the boss is connected by a pipe 43 with a blower 35. When tubing is being made, the glass is drawn upwards from the top of the boss 8 and air from the blower 35 passes through the axial hole 9 into the interior of the tubing. When making rod, the hole 9 is not required. The rotating sleeve 6 surrounds the boss 8 and allows only the undersurface glass to reach the boss. Jets of air, supplied through the tubes 33, may be used to cool the surface of the glass within the sleeve 6, and a water-cooled cylinder 78 may be placed within the cylinder 4 to assist in cooling the glass. In the Specification as open to inspection under Sect. 91 (3) (a), modified constructions of the drawing pot are described in which the lower part is rotated to stir the glass and in which the boss 8 is dispensed with, the tubing being drawn from a floating forming-block. This subjectmatter does not appear in the Specification as accepted.
Patent GB-738805-A (GB)
Title: Improvements in or relating to optical projection screens
Inventor: WHATLING FREDERICK WILLIAM
IPC: G03B21/60
Filed: 1953-07-31
Abstract: Optical projections screens are made by deforming a sheet, e.g. of methyl methacrylate, into a multiplicity of cavities in a former on which the sheet is laid, the deformation being effected in the parent Specification by difference of fluid, e.g. steam, pressure between the sides of the sheet.  In this modification the deformation is produced mechanically by a roller having a soft resilient surface which causes the thermoplastic sheet to deform into the recesses of the former, which may also be a roller, with a multiplicity of cavities in its surface.  The sheet is silvered or aluminized after cooling and may be given a protective coating of lacquer.
Patent GB-1210439-A (GB)
Title: Improvements in or relating to d.c. voltage supply circuit arrangements
Inventor: FREEMAN JOHN ANDREW ESCOURT
IPC: H02M3/07
Filed: 1968-05-06
Abstract: 1,210,439. Converting. MARCONI CO. Ltd. 14 March, 1969 [6 May, 1968], No. 21259/68. Heading H2F. A D.C. voltage supply unit utilizes an integrated circuit comprising a series arrangement of MOS transistor M1 and capacitor C1 connected across a square-wave source biased by a D.C. voltage V DD  and a further series arrangement of a second MOS transistor M2 and second capacitor C2 connected across the first MOS transistor M1 The peak-peak value of the square-wave should be approximately equal to the D.C. supply V DD . As described, a squarewave at 1 is coupled to the gate of MOST M1 and, after inversion at M5 to the gate of M2. M1 and M2 are thus made conductive alternately so that capacitor C1 is first charged from one half-cycle of the square-wave at the drain of M5 and during subsequent half-cycle discharged by M2 into C2 which is connected across supply V DD  across the output. The output voltage may thus be twice the value of V DD . The invention is applicable to provision of gate bias for MOST's used as resistor in a logic circuit. The capacitors can be integrated as metal-Si02-P +.
Patent GB-882946-A (GB)
Title: Refining of alcohols
IPC: C07C29/74
Filed: 1958-07-03
Abstract: Alcohols, obtained by the oxonation of olefines to give aldehydes which are then reduced or alternatively aldolised with dehydration and hydrogenation of the product, are purified by treatment in the liquid phase with a dry silicaalumina gel in which the proportion of silica is from 40% to 98% by weight.  The process is particularly applicable to alcohols derived from olefines having from 2 to 12 carbon atoms in the molecule.  The preferred temperatures for carrying out the process are in the range 40 DEG C.-200 DEG C.  The process may be carried out directly on the crude alcohol or upon a product which has undergone some preliminary purification, e.g. distillation or treatment with a solution of caustic soda or sodium bicarbonate.  Examples are given of the treatment of crude isodecyl alcohol, butyl alcohol and 2-ethyl hexanol.
Patent GB-206572-A (GB)
Title: Improvements in or relating to production of alkali silicate solutions
IPC: C01B33/32
Filed: 1922-08-05
Abstract: 206,572. Codd, L. W. Aug. 5, 1922. Water-glass and caustic soda, preparing.-The ratio of silica to soda in water-glass solutions is increased by limited electrolytic removal of soda, the conditions being chosen so that substantial separation of gelatinous or precipitated silica is avoided. The process is not carried so far that the solution sets to a jelly on standing. In an example a solution of sodium silicate containing 7 per cent SiO2 and having a ratio SiO2 to Na2O of 3.3 is electrolysed in a two-compartment cell between a rotating platinum anode and a mercury cathode, the anode current density being 4.0 amps. per sq. dem. The anode or the liquid surrounding it should be rotated. The silica ratio of the solution may be increased to 4.2 in this way; the product may be concentrated to a specific gravity of 1.225 beyond which the viscosity increases rapidly with further concentration. A silica ratio as high as 6 may be obtained. A higher initial concentration than 7 per cent SiO2 conduces to separation of silica. Caustic soda is formed in the catholyte and may be withdrawn for use. The sodium silicate used may be made by fusion of sodium carbonate and sand.
Patent GB-1438892-A (GB)
Title: Rotary-turret device for holding tools in machine-tools
IPC: B23Q16/06
Filed: 1974-05-15
Abstract: 1438892 Turret tool posts V T DAUGE and K V BUZNYAKOV 15 May 1974 21486/74 Heading B3T  A swivel tool post turret comprises a conical base member 3 securabble to a machine tool slide 2, a rotatable tool carrier 8 mounted thereon for rotation about the axis of the conical member, spring means for locating the tool carrier in any one of a plurality of predetermined positions with respect to the member 3, the locating means comprising a roller 12 located between the conical surfaces of the tool carrier and member 3 and being biased by a spring plunger 15, 14 into a detent 16 in either the carrier or member 3 a recess 13 being correspondingly provided in either the carrier or member 3 to receive the roller 12 during rotation of the carrier between successive detents 16. The roller permits rotation in one direction of the carrier and locks the carrier against rotation in the other direction. Rotation of the carrier about the central member 3 is effected manually by handle 23 which is conveyed to the head 17 and-by way of a friction clutch means 18 to the carrier 3. The anticlockwise movement of the handle rotates the head 17 to release the screw relationship 17, 7 which in turn removes pressure between the conical surfaces of member 3 and carrier 8, The friction clutch then entrains the carrier to overcome the spring detent means 12, 15, 16 to rotate the carrier to its next position. The handle 23 is then rotated clockwise to reclamp the assembly. A thrust bearing 25 is provided between the head 17 and carrier 8 to reduce friction between the head and carrier.
Patent GB-674247-A (GB)
Title: Process for improving the properties of ceramic materials
IPC: C04B33/13
Filed: 1949-08-19
Abstract: 674,247. Silica refractories. MAXPLANCK-INSTITUT FUR EISENFORSCHUNG, and TROMEL, G. Aug. 19, 1949, No. 21645/49. Class 22 Silica refractories are prepared by adding to a mass consisting mainly of quartzite sufficient, but not an excess, of phosphoric acid so that all the contained alumina is converted to orthophosphate. Ammonium phosphate may also be used.
Patent GB-625827-A (GB)
Title: Pest control compositions
IPC: C07C29/00
Filed: 1946-07-19
Abstract: A carbinol of the general formula <FORM:0625827/IV (b)/1> wherein X and Y represent hydrogen or halogen and R is alkyl, is prepared from the appropriate Grignard and a dichlorobenzophenone.  In the examples 4, 41-dichlorobenzophenone is used with methyl, ethyl, n-butyl and lauryl magnesium bromides.ALSO:A pesticide comprises a carbinol of the general formula <FORM:0625827/VI/1> wherein X and Y represent hydrogen or halogen and R is alkyl, and a carrier.  The composition may also include a bis (halophenyl) polychlorethane, in particular D.D.T.  The proportion of the solid carbinol to chlorinated ethane may vary from 1 : 10 to 1 : 1 parts by weight.  The carrier should be non-acidic and may be magnesium carbonate and/or magnesium silicate. The particle size of the carrier and active principle should be approximately 1 to 2 microns.  An anti-bonding agent, such as talc may also be included.  If applied as a spray a wetting agent such as lauryl sulphate or morpholine may be added.  Solvents such as naphtha, or oil may be added to the composition or it may form an emulsion with water.  The composition may be atomized by the addition of a solvent such as difluoro dichloromethane or methyl chloride.
Patent GB-632606-A (GB)
Title: Improvements in or relating to control systems for rotary wing aircraft
IPC: B64C27/54
Filed: 1947-08-07
Abstract: 632,606. Helicopters. SPERRY GYROSCOPE CO., Inc. Aug. 7, 1947, No. 21718. Convention date, May 15, 1945. [Class 4] In a helicopter rotor provided with cyclic pitch control mechanism, a controller carries the pitch-determining member and tilts the latter from a reference plane which is parallel to the tip-path plane and does not take part in pendulous swinging movements of the rotor drive shaft, whereby changes in the inclination of the tip path produced by the controller are also independent of such swinging movements. In the construction shown the pitch-determining member 30, 31 is mounted on a partspherical member 28 carrying a saturn ring 26 connected to a further part-spherical member 20 within the rotor drive shaft 14 and connected by links 27 to the rotor flapping links 17, so that the plane of the ring 26 is always parallel to that of the rotor-tip path. The ring 28 has a downward extension 33 to which is attached a ring 63 carrying the pitch-change mechanism. Collective pitch control is effected by a shaft 44<SP>1</SP>, the end of which carries a pinion 50 meshing with internal teeth on a ring 43, rotation of the latter causing vertical movement of blocks 41 engaging helical slots 42, resulting in vertical sliding movement of splined members 37 in sleeves 34 to operate the pitch-determining member 30, 31. For fore-and-aft cyclic pitch variation, a toothed ring 36 is rotated by a shaft 44<SP>11</SP> through gearing 65<SP>1</SP>, thereby rotating the sleeves 34 to cause relative axial movement of threaded members 37, 37<SP>1</SP>, one member being lengthened and the opposite one shortened to tilt the member 30, 31. Transverse cyclic pitch control is effected by a shaft 44 acting on two transversely-disposed threaded members similar to 37, 37<SP>1</SP>. The upper ends of the members 37 are connected to the pitch-determining member 30, 31 by Hooke's joints 39 and ball joints 46. Tilting of the members 20, 26, 28 and of the pitch control mechanism relative to the fuselage and rotor drive shaft is permitted by splined sections 144<SP>1</SP> and universal joints 145 in the shafts 44, 44<SP>1</SP>, 44". The pitchdetermining member 30, 31 may be connected by cables 45 to mechanism controlled automatically by a gyroscopic artificial horizon.
Patent GB-816292-A (GB)
Title: Improvements in or relating to a process for treating alkylene polymers
Inventor: HOOG HAN
IPC: C08F6/00
Filed: 1955-07-27
Abstract: Water is removed from a polyalkylene obtained by a Ziegler low pressure polymerization process, the polymer being in the form of a wet particulate mass, by passing through a continuously operating screw-press of the oil-expeller type (described in the Specification), at a temperature, pressure and duration of pressing such that a coherent mass of increased bulk density is formed.  The wet polyalkylene may be obtained by the polymerization of ethylene and/or propylene using a wide variety of specified Ziegler type catalysts, e.g. as in Specifications 799,392, 799,823 and 801,031, and in conjunction with the conventional solvents, followed by either centrifuging, or by treatment of the polymer slurry obtained, with oxygen, chlorine, an alcohol, or an acid, subsequently washing with water optionally containing a surface-active substance, and then centrifuging.  By the process of the invention the moisture content of the polyalkylenes may be reduced from about 50 per cent to about 10 per cent and the bulk density may be correspondingly increased from about 0.13 to about 0.35.  A further reduction of moisture content to about 0.2 per cent may be obtained by grinding the coherent mass, optionally in a heated atmosphere, to particles of average size of from 0.01 to 2 mm.
Patent GB-319104-A (GB)
Title: Improvements in and relating to sign displaying apparatus
IPC: G09F19/18
Filed: 1928-07-27
Abstract: 319,104. Jarmer, B. F. H. C., and Rogge, C. F. July 27, 1928. Reel and non-endless web apparatus; optical-projection apparatus, applications of; actuating. - An optical-projection sign for advertising or stationindicating purposes has identical legends &c. on two non-endlees bands 4, 5 mounted side by side on the same roller shafts 28, 29 so as to display simultaneously similar images on two screens arranged on opposite, sides of the bands. Two optical-projectors are located at 8, 9. The bands are moved electromagnetically by a manual switch 51, 52. The armature 13 of the magnet 12 is mounted on a shaft 14 cranked at 15 to carry a pawl 16 engaging a ratchet 17 coupled to the pin member 19 of a Geneva stop. A similar member 34 is connected thereto by reversing gear 32, and the members 19, 34 engage one of two slot members 20, 35 fixed on a sleeve 36 sliding on but rotatable with a shaft 21. The shaft 21 is geared with the shafts 28, 29 and with spindles 26, 27 carrying drums 30, 31 having teeth which engage perforations in the edges of the bands 4, 5. The members 20, 35, may be replaced by a single member, are moved sideways by the armature 40 of two electro-magnets 37, 38 controlled by the switches 10, 11 respectively. The step-by-step movement of the band by the pawl 16 is controlled by a snap switch 43 which alternately energizes the magnet 12 and retracting magnet 46, the switch being operated by the shaft 14. A switch 55 allows for adjustment of the bands 4, 5 when passing intermediate stations. Several apparatus located in different vehicles may be simultaneously operated by connecting cables, and a tell-tale indicator may be provided.
Patent GB-1038967-A (GB)
Title: Improvements in water-tube boilers
IPC: F22B21/22
Filed: 1962-06-06
Abstract: 1,038,967. Hot-water boilers. J. McNEIL. June 5, 1963 [June 6, 1962], No. 21796/62. Addition to 874,310. Heading F4A. The water-tube boiler described in the parent Specification is modified in that both end portions of at least some of the tubes are of smaller diameter than the middle portions; the tubes being pitched so that whilst the middle portions are close together, the end portions, which may be coaxial with or offset with respect to the middle portions, are spaced apart sufficiently to allow them to be secured into the associated tube plates of the boiler and are only of sufficient length to allow the securing process to be carried out. In Figs. 1 and 2 (not shown), tubes 4 above the combustion chamber are arranged close together and have short end portions 5 of reduced diameter which are fitted into tube plates 3, 6. Combustion gases can flow upwardly between the tubes 4 and come into contact with nested U-tubes 1 which again are arranged close together but have short reduced diameter end portions 2 which are fitted into the tube plate 3.
Patent GB-677802-A (GB)
Title: Improvements in optical eye-pieces, particularly for wide angles
IPC: G02B25/00
Filed: 1950-09-05
Abstract: 677,802. Optical systems. VERKAUFSAKT. - GES. H. WILD'S GEODATISCHE, INSTRUMENTE. Sept. 5, 1950 [Sept. 20. 1949], No. 21893/50. Class 97 (i). An eye-piece consisting of at least four airseparated lens components of which the last (nearest the eye) is a meniscus concave towards the eye and the first component (next to the field diaphragm) contains a diverging cemented surface convex towards the eye and with a radius of curvature not exceeding 0.75 of the diameter of the field diaphragm is characterized in that the last component has a diverging cemented surface concave towards the eye of which the radius of curvature is between 0.35 and 0.8 times the radius of curvature of the first surface of this component. The refractive index of the glass in front of the cemented surface of the last component may be greater than that behind the surface (towards the eye) by at least 0.04. Numerical data are given for three examples of the eye-piece shown; the objective is shown by dotted lines, and forms a real image at B where the field diaphragm is located.