baber/WOPTO huggingface dataset:
Patent GB-475922-A (GB)
Title: Improvements in or relating to machines for cutting, embossing and printing sheets of paper and cardboard
IPC: B26D7/18
Filed: 1936-10-30
Abstract: 475,922. Cutting paper sheets. LEVIN, S. Oct. 30, 1936, Nos. 29540 and 29541. Convention dates, Oct. 31, 1935 and May 16, 1936. [Class 31 (i)] [Also in Group XVI] In a manually or power operated machine for cutting and embossing sheets of paper, e.g. paper sheets used in photography, means operated by a lever are provided for successively holding the sheet in position, cutting it, embossing it and finally ejecting it, the holding means being formed to serve also as a device for registering the sheet before the operations are performed. As shown, the embossing member 7 is fixed to the machine base 1 and has ridges 15 co-operating with recesses in a member 8 carried by a lever 6 in order to form a frame-like indentation of square, oval or other shape on the sheet. The edges of the member 7 form a counter-blade to co-operate with blades 13 fixed to the lever 6 for cutting the sheet to the required shape. A lever 11, Fig. 1, freely mounted on the shaft 3 carrying the lever 6 and under the control of a spring 18 passes through an opening in the member 8, a clamping and sheet-registering plate or grid 12 being fixed to its free end. The sheet-ejecting device comprises a pivoted finger or fingers 31 adapted to be projected upwardly through openings 9 in the member 7 and connected by a pin-and-slot arrangement to a lever 27. When the lever 6 is released after an operation on a sheet, it moves upwardly under the action of springs, but the sheet remains pressed on the member 7 by the plate 12. After the lever 6 has travelled a certain distance, a bar 20 fixed to arms 21 integral with the lever engages a spring-arm 23 fixed to the lever 11 so that further movement of the lever 6 causes the clamping-plate 12 to be raised. Also, during this movement other arms 24 integral with the lever 6 subsequently engage the springy ends 26 of the levers 27 so as to actuate the sheetejecting fingers 31. Before the upward movement of the lever 6 is completed, the arms 24 pass over the springs 26 and allow the fingers 31 to drop to inoperative position. To initiate an operation of the machine, the arm 11 is first depressed so that the arm 23 passes over the bar 20 and the plate 12 comes into contact with the member 7 under the action of the spring 18. A sheet to be cut &c. is now placed under the plate 12 and correctly positioned, and the lever 6 is then operated so as to cause the cutting, embossing and ejecting devices to operate successively on the sheet.
Patent GB-600694-A (GB)
Title: Improvements in or relating to circuits for the conversion of saw-tooth voltages into saw-tooth currents
IPC: H03K4/39
Filed: 1945-11-06
Abstract: 600,694. Sawtooth amplifying circuits. PHILIPS LAMPS, Ltd. Nov. 6, 1945, No. 29548. Convention date, July 13, 1940. [Class 40 (vi)] In a circuit for converting saw-tooth voltage on the grid of a high-resistance tube V into saw-tooth current through deflecting-coils L in the anode circuit, a resistance R is connected in parallel with the coils having a value equal to the square root of L/2C(1 - Cr<2>/2L), where L represents the inductance and r the resistance of the coils, and C represents the capacity, inherent or otherwise, across the coils. In some cases r may be neglected. In Fig. 1, the coils are transformer-coupled to the tube V, but the transformer may be omitted, and the anode current supplied through the resistance R with a blocking-condenser interposed between the resistance R and the coils L. A lower value of resistance R may be used if a negative feed-back resistance R1, Fig. 3, interposed between the coils L and the cathode is also included in the grid circuit. The value of R may then be reduced by the factor 1+SR1, where S is the mutual conductance of the value.
Patent GB-803283-A (GB)
Title: Improvements in or relating to electroacoustic transducers
IPC: H04R11/02
Filed: 1955-10-17
Abstract: 803,283. Loud-speakers. BAERMANN, M. Oct. 17, 1955 [Oct. 28, 1954], No. 29603/55. Class 40 (4). In an electro-acoustic transducer, a perinanent magnet attached to the mechanicallyvibrating elements is disposed in an air gap formed by the parallel pole faces of an electro magnetic circuit so that it is free to vibrate ina direction at right angles to the gap field, and is magnetized at right angles to the direction of motion. The permanent magnet is mounted to have a. position of rest displaced from the centre of the gap field and may be a bar magnet magnetized transversely of its length or annular with radial magnetization. A number of bar magnets in parallel gaps may act simultaneously on the same diaphragm of a loud-speaker or microphone. In the loudspeaker, Fig. 2, two annular magnets 4, 5, joined by a ring of polystyrene, are mounted and spaced to overhang the pole faces and are magnetized in opposite directions. The coil 2 may be connected directly in the anode circuit of an output valve and the effect of the D.C. component is counteracted by a magnet 11 and an adjustable shurit 12. A further modification in which two magnetic circuits act simultaneously on a single permanent magnet is described with reference to Fig. 3 (not shown).
Patent GB-1191685-A (GB)
Title: Bearing Seal
IPC: F16J15/32
Filed: 1967-06-27
Abstract: 1,191,685. Bearings; valves; shaft seals. TIMKEN ROLLER BEARING CO. 27 June, 1967 [7 Nov., 1966], No. 29690/67. Headings F2A, F2B and F2V. A bearing has a vent 35 comprising a body of elastic material with a wall divided by slits into flexible segments, the material being seared at the slits so that it does not rebond across the slits. The vent is positioned in a seal case 22 which carries a seal 29 encircled by a spring 31. The wall of the vent is conical so that the segments flex outwardly to release air and lubricant on heating of the bearing but inward flexing is resisted. In Fig. 4 (not shown), the seal and vent are integral and the vent wall is planar.
Patent GB-832333-A (GB)
Title: Improvements in methods of producing silane of high purity
Inventor: RADLEY JACK AUGUSTUS
IPC: C01B33/04
Filed: 1956-09-28
Abstract: Silane is produced by reacting silicon tetrachloride with calcium aluminium hydride, magnesium aluminium hydride, or aluminium hydride in a carrier of tetrahydrofuran. Ca(AlH4)2, Mg(AlH4)2, or AlH3 are prepared by reacting 2 mols. AlCl3 with 4 or 3 mols. CaH2 or MgH2.AlCl3 is refluxed in 1 in THF while CaH2 is slurried in THF in 2.  Requisite proportions of slurry and solution are mixed in 3 at, or close <FORM:0832333/III/1> to, the boiling point of THF, 66 DEG C., in a dry, oxygen-free, atmosphere, e.g. H2 or N2.  The resulting solution is filtered, or decanted, off and reacted in 4 with SiCl4 as liquid, or in solution in THF at 10-66 DEG  C., while an O2-free gas, e.g. A, N2, or H2, sweeps out the SiH4.  After filtering off CaCl2, the THF solution of AlCl3 from 4 may be reused.  As a modification of the process where AlH3 is the reactant, SiCl4 may be added at 3 to react with the AlH3 as it is formed, and the gas used to sweep out silane provides the O2-free atmosphere. Specification 745,698 is referred to.
Patent GB-520162-A (GB)
Title: Improvements in or relating to the working up of cellulose derivatives
IPC: C08K5/43
Filed: 1938-10-13
Abstract: 520,162. Cellulose derivative compositions. DEUTSCHE HYDRIERWERKE AKT.-GESOct. 13, 1938, Nos. 29713 and 29714. Conven. tion dates, Oct. 13, 1937, and Oct. 7, 1938. [Class 2 (ii)] An aliphatic or cycloaliphatic sulphonamide containing at least 3 carbon atoms in the molecule and having at the nitrogen atom at least one substituted or unsubstituted hydrocarbon residue, the chain of which is not interrupted by an oxygen atom, is employed as solvent, softening, gelatinizing or swelling agent in the working up of cellulose derivatives to manufactured or partly manufactured products. The sulphonamide may be substituted at the nitrogen atom by one or more aliphatic, cycloaliphatic, or aliphatic-cycloaliphatic residues. Atoms other than carbon or hydrogen or groups containing such atoms may be present in the hydrocarbon residues. Halogen, oxygen, or sulphur atoms, or groups containing oxygen, sulphur, or nitrogen may be present. The hydrocarbon residue may be a methyl, butyl, octyl, dodecyl, octadecyl, oleyl, cyclohexyl, methylcyclohexyl, decahydronaphthyl, alkyl substituted cycloalkyl, naphthenyl, or abietyl group. Butyl-sulpho-N-octadecylamide, octylsulpho-N-cyclohexylamide, methyl sulpho-N- methyl-N-octadecylamide, methyl sulpho-N- dodecyloxyethylamide, ethoxyethane-sulpho-N- diethylamide, and ethyl-sulpho-N-oleylamide, may be used. The sulphonamides may be used alone or in admixture with one another or with other solvent or softening agents for the production of lacquers, films, and other shaped structures, plastic masses and the like from cellulose ethers such as ethyl or benzyl cellulose, or cellulose esters such as the acetate, formate, or nitrate. In an example, a cellulose nitrate lacquer is obtained by dissolving cellulose nitrate in butyl acetate, butyl alcohol, and xylene mixture, and then adding to the solution butyl-sulpho-N-octadecylamide and cyclohexyl-sulpho-N-dibutylamide. The Specification as open to inspection under Sect. 91 refers also to the use of sulphonamides which are unsubstituted at the nitrogen atom. In an example, cellulose acetate is dissolved in acetone, methyl alcohol, methyl acetate, ethyl acetate, benzene, and methylene chloride and n-butyl sulphonamide is added as plasticiser. The solution is used as a lacquer for cables. In another example, cellulose acetate is dissolved in tetrahydrofurfuryl alcohol, ethyl alcohol, and acetone, and a mixture of n-butyl-, and ndodecyl sulphonamide is added, the solution being used as a painting lacquer. In another example, a cellulose nitrate lacquer containing methylcyclohexyl sulphonamide is obtained. This subject-matter does not appear in the Specification as accepted
Patent GB-229749-A (GB)
Title: Improvements in or relating to a method and means for forming spherical bodies
IPC: B21H1/14
Filed: 1923-11-26
Abstract: 229,749. Logan, H. T. Nov. 26, 1923. Balls are made by feeding wire, &c. to shearing cutters which sever the wire into non-spherical blanks, the latter then passing in single file through a channel whose effective cross-sectional area continually decreases. The wire 27 is fed against a stop 29 by a lever 36 carrying a spring- pressed pawl 38 for gripping the wire and oscillated by a cam 43 and spring 39. A stationary spring-pressed pawl 34 prevents retrograde movement of the wire. A knife 30 secured to the ' upper end of the shaft 14 coacts with a cutter 28 to sever the wire, the blanks falling into a channel 20 which is formed as a helix on a cylinder 21 rotating with the shaft 14 within a concentric shell 17. The internal wall of the shell tapers slightly for about two thirds of its length to reduce the effective cross-section of the channel, the remaining part of the wall being cylindrical to polish the balls. Longitudinal flutes 26 may be formed in the shell. The finished balls fall into the lower part of the shell from whence they are swept into a delivery shoot 25 by an arm 22 on the roll shaft. Several knives 30 may be arranged so as to sever more than one blank at each rotation of the roll shaft.
Patent GB-1533944-A (GB)
Title: Continuous casting mould employing a copper alloy
IPC: C22C9/00
Filed: 1977-07-15
Abstract: The material consists of a copper alloy containing from 1.5% to 4% of iron and up to 0.04% of a deoxidant. Advantageously, said alloy contains from 2% to 2.5% of iron, from 0.005% to 0.02% of phosphorus as a deoxidant and from 0.05% to 0.25% of zirconium. In addition, the material may be age-hardened.
Patent GB-827851-A (GB)
Title: Improvements in or relating to scanning devices
Inventor: CALDER NIGEL DAVID RITCHIE
IPC: H04N3/10
Filed: 1955-10-19
Abstract: 827,851. Television. MULLARD Ltd. Sept. 18, 1956 [Oct. 19, 1955], No. 29851/55. Class 40 (3). In a television display, a cathode-ray tube T modulated in accordance with image detail is scanned in the line direction only over a narrow screen S whilst the frame component of scan is introduced by a rotatable carrier C carrying a plurality of cylindrical lenses L and formed of an opaque material for preventing viewing of the cathode-ray tube screen except through the lenses. The carrier is disposed with its axis parallel to the direction of line scan, and the lenses are mounted with their axes parallel to the axis of rotation. The carrier is rotated synchronously with the incoming signals, the speed being one quarter of frame frequency for the arrangement shown using four lenses. The cathode-ray tube screen is disposed eccentrically within the carrier on the side of the axis of rotation remote from the operative lens, the light which emerges rearwardly from the screen passing through the lens to the viewer. The image produced by the display is curved, although it is stated that this may be corrected. Lenses of circular, elliptical, double-convex and planeconvex form are referred to, although lenses of completely circular cross section are preferred for convenience of manufacture. The length of the lenses exceeds the length of a line scan whilst the distance between adjacent lenses is equal to the length of a frame scan. The display may be applied to the colour television by employing a cathode-ray tube formed with a screen having red, green and blue phosphors in adjacent parallel bands. The colour component line images are then produced on the respective bands, either by means of three electron beams scanning the bands separately, or by means of a single electron beam subjected to spot wobble so as to impinge all the bands. Reference is made to a method of frame-sequential colour operation in which the cathode-ray tube reproduces a black-and-white image and the lenses are coloured or have associated filters to effect the colour component solution. Progressive reductions in the width of the lines towards the upper and lower edges of the image due to the cathode-ray tube screen being viewed at an increasingly oblique angle may be corrected either by the use of lenses of elliptical cross-section or by forming the cathode-ray tube phosphor on a curved wall associated with a cylindrical correcting lens. The image reproduced by the rotating carrier may be magnified by a lens or mirror.
Patent GB-1469385-A (GB)
Title: Stabilising device particularly for ships
IPC: B63B39/00
Filed: 1975-07-16
Abstract: 1469385 Stabilizing ships HOWALDTSWERKE-DEUTSCHE WERFT AG HAMBURG UND KIEL 16 July 1975 [17 July 1974] 29917/75 Heading B7M A ship is stabilized by at least one pair of cylindrical rotors 12, 13, Fig. 2, which project laterally and are controllably rotatable in directions which are opposite to one another. More than one pair of rotors may be provided and they may be retractable into the ship. Each side of the ship may be provided with inner and outer rotors 20, 19, Fig. 4, which are rotatable in opposite directions. The outer rotors may be retracted into the ship. Guide elements 21, Fig. 5, may be provided to reduce drag. Adjustable covers may be used to render the rotors inoperative. Disc-shaped end covers 25, Fig. 6 (not shown), may be provided.
Patent GB-1120207-A (GB)
Title: Improvements in and relating to fluid control valves
IPC: F16K31/122
Filed: 1965-07-14
Abstract: 1,120,207. Valves. RANSBURG ELECTRO-COATING CORP. 14 July, 1965 [15 July, 1964], No. 29938/65. Heading F2V. Application of a fluid pressure to a conduit 56, Fig. 3, causes leftward movement of a free piston 58 thereby translating an adjustably spring- loaded stem 26 to unseat an obturator 27 having a tapered metering portion 25. The valve seat 23 is removable and leads to a chamber 16 into which open two conduits 21, 22. A stem packing 39 is provided with a screw 42 having a head 44 with tool holes 43 which are accessible through openings in the casing. The latter is in two parts 10, 12 the relative positions of which are adjustable to vary the distance the piston can move the stem 26 in an obturator opening direction, which distance is indicated on a scale 65 on the part 10. The casing part 14 may be removed for cleaning purposes without disturbing the obturator. The valve may be employed in a circulating paint system for metering paint to a spray gun. The valve seat is connected to the circulating system (76, Fig. 5, not shown), a conduit (21) leads to the spray gun (86) and a conduit (22) is connected to a solvent source via a valve (85). The valve is cleaned upon opening the solvent valve and seating the obturator.
Patent GB-393175-A (GB)
Title: Improvements relating to letter-spacing mechanism for combined typewriting and computing machines
IPC: B41J19/18
Filed: 1932-10-27
Abstract: 393,175. Typewriters &c. REMING- TON TYPEWRITER CO., Ilion, New York, U.S.A.-(Assignees of Hart, F. A. ; Sagamore Road, Shippan, Stamford; Connecticut, U.S.A.) Oct. 27, 1932, No. 30107. Convention date, Nov. 19, 1931. [Class 100 (iv).] Relay type-lever machines ; letter-spacing mechanism.-In a power-actuated computing- typewriter, means for operating the letterspacing escapement is so arranged that release of the paper-carriage occurs earlier in the stroke of the numeral-type levers than in the stroke of the letter-type levers. As applied to machines in which operation of the numeraltype levers follows operation of the computing- mechanism, the means ensures operation of the escapement in the limited time available for the stroke of the numeral-type levers, particularly when the machine is operated rapidly or a heavy paper-carriage is employed. In the machine shown in the Figure, typelevers 11, 50 and computing-mechanism 68 .. 73 are actuated by the relay-mechanism described in Specification 374,109 and comprising (i) lettertype levers 11 connected to levers 21 provided with pawls 17 which co-operate with a driving- shaft 20 on depression of the letter-key levers 10, (ii) numeral-type levers 50 connected to levers 80 co-operating with levers 61 which are connected to the computing-mechanism and co-operate with one-revolution cams 52 controlled by the letter-key levers 59, the computing-mechanism and the type-levers being operated during the first and second halfrevolutions of the cams respectively, and (iii) a universal bail 26, operated by cams 25 on the type-levers and connected to a rocking arm 30 having a pin 31 engaging the forked end of a link 32 which is connected to a rocker 34 having fast and loose dogs 36, 37 co-operating with an escapement wheel 38. For operating the escapement at an early period in the stroke of the numeral-type levers, the levers 80 are now provided with dogs 87 cooperating with a universal bar 92 secured to a rock-shaft 97 having an arm 98 connected to a rocking arm 110 which abuts on a lug 112 on the link 32. At the commencement of the stroke of a numeral-type lever, the associated dog 87 depresses the universal bar 92, and the escapement is operated. The dog is tripped by a flange 113 on the universal bar. Fingers 101, 102 co-operate with a rod 103 to limit movement of the universal bar. The cams 25 may be omitted from the numeral-type levers, but are preferably retained to ensure return of these type-levers by the universal bail.
Patent GB-1313662-A (GB)
Title: Process for deoxidizing rimming steel
IPC: C21C7/06
Filed: 1970-06-22
Abstract: 1313662 Deoxidising steel KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN NV 22 June 1970 [23 June 1969] 30142/70 Heading C7D Rimming steel is deoxidised by introducing a powder deoxidant into the pouring stream, at least 50% of the powder passing through a 150 micron sieve but not through a 75 micron sieve and there being substantially no powder of grain size less than 40 micron or greater than 200 microns, the powder being substantially uniformly metered into the stream during at least 70% of the time of filling of the mould. The deoxidant may be aluminium in a stream of air at a rate of 1À9 to 2À2 gm/litre and 700-1200 gm of powder per minute, the gas speed being 40-60 metres/second.
Patent GB-838589-A (GB)
Title: Electric primary cell
IPC: H01M6/06
Filed: 1958-09-22
Abstract: 838,589. Batteries. MALLORY & CO. Inc., P. R. Sept. 22, 1958 [Oct. 3, 1957; Oct. 14, 1957], No. 30166/58. Class 53. A primary cell has an electrolyte consisting of a solution of a sulfamate, and an anode which may be magnesium, cadmium, or zinc. The depolarizer may be the hydroxide or an oxide of copper. The Figure shows a cell having a magnesium container 1 lined with paper 2 imprenated with carboxymethyl cellulose, glycerine and water, and surrounding a mixture 3 of copper oxide and carbon moistened with a solution of magnesium sulfamate and potassium dichromate. The mixture is first compressed into a bobbin, after which a carbon rod 4 with a brass terminal 5 is forced into position and the bobbin inserted in the lined container and again compressed. A vent hole 9 may be provided in the terminal. The top of the lining 2 is folded over the bobbin and held in position by cardboard discs 6, 7. The top of the container is rolled over as shown at 10 and the cell sealed by a layer of wax 8.
Patent GB-955390-A (GB)
Title: Improvements in pneumatic controller
Inventor: PUSTER LOUIS MEDART
IPC: F15B5/00
Filed: 1960-09-01
Abstract: 955,390. Fluid-pressure servomotors. ROBERTSHAW-FULTON CONTROLS CO. Sept. 1, 1960 [Sept. 3, 1959], No. 30169/60. Heading G3P. In a pneumatic controller a spring loaded pilot valve 46, Fig. 4, co-operates with a moving seat 41 connected to the free end of a bellows 10 to determine the pressure in a chamber 20 having an inlet 18 connected to a pressure source via a restriction 84 and to a control member e.g. a valve, via an output line 86 which is also connected to a pressure gauge 90. As described, a temperature detecting element 14, 72, 74, Fig. 1 moves an adjustable rod 76 which through an actuating arm 82 moves a lever 68 which abuts an extension 50 of the valve 46, the leverage being variable to set the proportional band.
Patent GB-308161-A (GB)
Title: Improvements in combination brush devices
IPC: A46B15/00
Filed: 1928-12-12
Abstract: 308,161. Whitehouse, J. S. Dec. 12, 1928. Boots and shoes, appliances for putting on.-A brush has a stock formed with a slotted stub projection 2 into which is fixedly secured a shoe-horn 3.