baber/WOPTO huggingface dataset:
Patent GB-941257-A (GB)
Title: A method of and a means for reducing the yarn tension on a balloon-forming twist spindle
IPC: D01H1/42
Filed: 1960-06-14
Abstract: 941,257. Textile balloon-control means. H. NIMTZ, and K. NIMTZ, [trading as VOLKMANN & CO.]. June 14,1960 [June 20, 1959], No.20910/60. Heading D1D. The tension in a ballooning yarn in twisting- spindles, especially in double-twist spindles is reduced by interrupting the yarn in the ballooning area and imparting inward impulses to it at separate zones distributed around the periphery of the balloon, or both around its periphery and its axial length. In Fig. 1, a cylinder 20 carries one or more rings 21 of undular (as shown) or saw-tooth (Fig. 2 not shown) formation. In Fig. 3, hexagonal rings 1... 4 are arranged one above the other and in Fig. 4 a series of eccentrically-arranged rings is arranged with the ring-centres on a helix around the axis of the cylinder.
Patent GB-1272714-A (GB)
Title: Knife scabbard or holder
IPC: B24D15/08
Filed: 1970-04-30
Abstract: 1,272,714. Knife scabbard. WILTSHIRE CUTLERY CO. PTY. Ltd. 30 April, 1970 [7 May, 1969], No. 20921/70. Heading F3C. A knife scabbard in the form of a hollow housing 2 having a knife blade access opening 12 in its forward end is provided with a sharpening device 17 mounted in the housing in alignment with the opening so as to be engageable with the cutting edge of a knife blade when a blade is moved lengthwise in the housing. The scabbard also has a means for urging the knife blade towards the sharpening device or means for guiding the knife blade in its lengthwise movement in the housing. In the construction shown the knife blade urging means comprises a pivoted latch 38 which is arranged to engage the knife blade under the action of a leaf spring 35. The effective length of the leaf spring 35 and thus the applied force of the spring may be varied by a sliding ramp device (Fig. 19, not shown). A magnet may be attached to the body of the sharpening device 17 or moulded therein to provide the pressure means, Fig. 18 (not shown). The knife blade guiding means may consist of longitudinal ribs (Fig. 7, not shown), opposed pads which may be fixed (Fig. 14, not shown) or spring loaded (Fig. 15, not shown) or guide wells which form a substantial part of the side walls of the scabbard (Fig. 16, not shown). The sharpening device 17 has a pair of angled cutter plates 18 and is pivotally mounted in the housing 2. The range of the pivoting is limited by a pair of stops 24, 25. A leaf spring 48 serves to urge the cutters resiliently into engagement with the knife blade. The leaf spring 48 may be replaced by a wire spring (Fig. 21, not shown) or the body of the sharpening device 17 may be moulded from a plastics material and be provided integrally with a bifurcated projection which acts as a spring (Figs. 22, 23, not shown). The device 17 may be mounted directly on a bow-shaped spring (Fig. 24, not shown) in which case the device may not be pivoted in the housing walls or indirectly through a bracket (Fig. 25, not shown). Two pairs of cutter plates may be provided on a single body (Fig. 28, not shown) or two independently mounted pairs of cutter plates may be provided in the scabbard (Fig. 29, not shown). The scabbard may be mounted on a supporting member by a fastener-keyhole slot arrangement (Figs. 26, 27, not shown) or by flanges on the scabbard. The lower wall of the scabbard may be reinforced. A slot may be formed in the scabbard as a continuation of the access opening in the upper wall of the scabbard so that in placing a knife blade in the scabbard the sharpening device sharpens the blade. The scabbard comprises two side walls which are connected together as by screws to form the housing (Figs. 3 to 7, not shown).
Patent GB-1343237-A (GB)
Title: Apparatus for the electro-slag remelting of metals
IPC: C22B9/187
Filed: 1972-05-05
Abstract: 1343237 Apparatus for an electroslag remelting process BOHLER & CO AG Gebr 5 May 1972 [30 Aug 1971] 20998/72 Heading B3F [Also in Division H5]  Apparatus for electroslag remelting of metals comprises a mould having one or more consumable electrodes 1 arranged therein, the electrode(s) being spaced from the central portion of a mould wall 2 by a larger distance than at the end portions of said wall. Some typical arrangements are shown in Figs. 1, 6 and 10.
Patent GB-1111922-A (GB)
Title: An adjustable liquid metering device
Inventor: BARGER LLOYD DOW
IPC: G01F11/02
Filed: 1966-05-12
Abstract: 1,111,922. Delivering measured quantities of liquid. BARGER MANUFACTURING CO. Inc. 12 May, 1966, No. 21013/66. Heading B8N. An adjustable liquid metering device comprises a piston 25 movable in a cylinder 18 which is formed in a housing 16, and a spring-loaded valve 24 in a liquid supply conduit 17 leading to the cylinder, the piston being movable from a first position wherein the valve is opened and a port 34 leading from the cylinder is closed, to a second position wherein the valve is closed and the port is opened. The piston 25 is connected to a further piston 26 which faces a chamber 31 into which a pressurized fluid is fed via a pipe 32. A reservoir 42 communicates with the cylinder 18 via a passage 36, an adjustably mounted plate 38 being mounted in the reservoir in order to vary its capacity. The conduit 17 is connected via a pipe 23 to liquid 14 in a tank (10), (Fig. 1), the space in the tank above the liquid being fed by compressed air via a pipe (11); a pipe (13) communicates with the space and also with the pipe 32. An automatically or manually actuated valve (15) is fitted in the pipe 13. In operation, with the valve (15) closed, pressurized air acts via the pipe 32 on to the piston 26 which, together with the piston 25, moves so that the latter covers the port 34 and by means of a rod 33 opens the valve 24. Liquid in the tank 10 then flows via pipe 23 into the cylinder 18 and into the reservoir 42. When the pressure in the cylinder 18 balances that in the chamber 31, a spring 29 returns the piston 25 to the position shown, thereby closing the valve 24 and opening the port 34 so that the liquid is dispensed. The device may be connected in a vacuum circuit in which ease the spring 29 is fitted into the chamber 31 so as to act on the opposite face of the piston 26.
Patent GB-711503-A (GB)
Title: Improvements in the production of foamed slag
IPC: C21B3/06
Filed: 1951-09-06
Abstract: Foamed slag is produced by first foaming the slag or like smelt to the climax of foaming and then stabilizing its volume as near as possible to said climax by continuing and/or increasing the foaming and chilling medium throughout the mass to solidify it and prevent any settling of the foam.  The product is of very light weight and high porosity and may be used as a light weight aggregate and for insulating purposes.  The apparatus described in Specifications 563,655 and 608,658 can be used po carry out the method.  However any foaming bed, wheel, conveyer, or shoot can be used provided the foaming and chilling medium supply can be continued and/or increased as near as possible to the climax of foaming.
Patent GB-300566-A (GB)
Title: Improvements in or relating to electric heat radiators
IPC: F24C7/06
Filed: 1927-08-10
Abstract: 300,566. Berry, A. F. Aug. 10, 1927. Electric radiators. -Relates to apparatus employing a heating element of the kind comprising a wire strip in the form of a grid which becomes luminous on the passage of current and produces a smoke and flame effect due to the passage of air over the elements, as described in Specification 24170/14. Such an element is arranged so that it is obscured from direct view and the varying luminous effect is modified by reflection or refraction: The heating element 2, of the kind referred to, is arranged in front of a smooth, ribbed or dented reflector 3, the element and reflector being mounted in a casing or frame 1 carried on supports 9. An air opening 4 is controlled by a flap 5. A plate 8 shields the element from direct view. An auxiliary reflector 12 and a support 10 carrying plain or coloured glass may be provided. A visible electric heating element 14 may be arranged on the front of the casing. This element may operate at different temperatures in different parts thereof and additional illumination may be used therewith.
Patent GB-674047-A (GB)
Title: Air heating apparatus
IPC: F24H3/08
Filed: 1948-08-10
Abstract: 674,047. Air-heating stoves. SUGG & CO., Ltd., W., and SUGG, P. C. Aug. 10, 1949 [Aug..10, 1948], No. 21107/48. Class 64 (i). In an air heater with a casing C, combustion products flow from a gas or other burner 11 in a combustion chamber 10 through upwardly directed heat exchange tubes 8 to exhaust, and air is circulated by a fan 3 at the bottom through a vertical passage, separated from the combustion chamber, 10 by a common wall 7, and through the interior upper space 17 behind the tubes 8, and is discharged between the tubes. The tubes, which are of flattened cross-section, extend between a cast-iron tube plate 9, with spigots over which the tubes fit, to a header 20 formed by a removable lid 23 fitting into a tray 24. The header 20 opens into a flue space 21 with an outlet 22. Baffles 171, 27 are provided in the air space 17 and the flue space 21. Air can pass through apertures from the vertical air passage into the space above the header 20, and then forwardly above the main air stream. In a modification the lid 23 is replaced by a plate 23<SP>1</SP>, shown in broken lines, with a downwardly inclined elongated hot gas outlet above the main air outlets. Specification 674,048, [Group XXIX], is referred to.
Patent GB-392775-A (GB)
Title: Manufacture of mixed esters of cellulose
IPC: C08B3/16
Filed: 1932-07-27
Abstract: Mixed esters of cellulose and organic acids are made by acylating a partly hydrolysed cellulose ester of an organic acid higher than acetic acid, in particular, a hydrolysed cellulose propionate, butyrate, acetate-propionate or acetate-butyrate. More than one kind of acid radicle may be introduced during the esterification; and the mixed ester first obtained may be subjected to further hydrolysis and esterification and so on, and the several acid radicles so introduced may differ at the several stages.  The acylation bath may contain a fatty acid anhydride, or a fatty acid chloride, or a fatty acid and an impeller.  The acylation may be carried out with solution of the ester, or in suspension.  Examples are given illustrating the preparation of cellulose propionatestearate soluble in hot mineral oil to give on cooling a product resembling a heavy grease, by further esterification of hydrolysed cellulose propionate by means of stearic acid, chloracetic anhydride, chloracetic acid and magnesium perchlorate; of cellulose acetate-propionate from hydrolysed cellulose propionate and acetic anhydride, acetic acid and sulphuric acid, a buffer salt such as sodium acetate being added if the temperature is raised; of cellulose butyrate-stearate soluble in mineral and vegetable oils, from hydrolysed cellulose butyrate, stearic anhydride, ethoxyacetic acid, and magnesium perchlorate; of cellulose acetatebutyrate-laurate by first preparing a hydrolysed cellulose acetate-butyrate, and esterifying this with lauric acid, ethoxyacetic anhydride, ethylene chloride, and magnesium perchlorate; of cellulose propionate-butyrate by heating under reflux a mixture of hydrolysed cellulose butyrate, propionic anhydride, toluene, and pyridine; of cellulose acetate-propionatestearate by heating under reflux a mixture of hydrolysed cellulose acetate-propionate, stearic anhydride, p-toluenesulphochloride, and ligroin; of cellulose-butyrate-laurate by heating together hydrolysed cellulose butyrate, lauryl chloride, pyridine, and toluene; of cellulose butyrate-stearate soluble in mineral and vegetable oils, from hydrolysed cellulose butyrate, stearic anhydride, ethylene chloride, and magnesium perchlorate.  The mixed esters obtained may be used with or without plasticizers for the manufacture of films or filaments, and for the preparation of lacquers, lubricants, compositions for various uses, and for laminating glass; and they may be mixed with other cellulose esters, gums, resins, waxes and heavy metal soaps.  Specifications 300,942, 312,096, 338,201, 338,202, [all in Class 2 (ii), Cellulose &c.], 360,058, and 360,417 are referred to.ALSO:Cellulose mixed esters such as cellulose propionate-stearate and cellulose butyrate-stearate, are used in the preparation of lubricants.  These esters are soluble in mineral and vegetable oils, and in particular, cellulose propionate-stearate is soluble in hot mineral oil to give on cooling a product resembling heavy grease.
Patent GB-184190-A (GB)
Title: Improvements in or relating to power transmission apparatus
IPC: F16H1/22
Filed: 1922-08-03
Abstract: 184,190. Macalpine, J. H. Aug. 5, 1921, [Convention date]. Motors, gearing for.-In toothed or other gearing in which two or more similar electromotors drive a single member such as a pump, propeller, fan, blower, or compressor, resonance of the driving-systems R, P<1>, R<2>, P<2>, &c. is prevented by arranging that their primary, secondary, &c. natural periods of vibration differ. This is accomplished by the use of driving-shafts of different diameter. The periods should preferably vary not less than 6 per cent. Specification 178,427, [Class 80 (ii), Gearing, Variable-speed &c.] is referred to. The Specification, as open to inspection under Sect. 91 (3) (a) states also that the natural periods of vibration may be caused to differ by employing driving-shafts differing in length or by the use of rotors of different moments of inertia. This subject-matter does not appear in the Specification as accepted.
Patent GB-583563-A (GB)
Title: Safety-razor blade holder
IPC: B24D15/10
Filed: 1944-11-01
Abstract: 583,563. Razor sharpeners. WOLLACOTT, E. Nov. 1, 1944, No. 21328. [Class 60] A holder for a safety razor blade comprises two pivoted parts 1, 2 provided on one side of the pivot 3 with blade locating means, such as projections 4 and recesses 5, and on the other with a sliding locking-sleeve 10. The pivot lies in the plane of the mating surfaces 6, 7 and the handle 8 is mounted on one of the parts. The sleeve may be cylindrical or conical, the surfaces engaged thereby being similarly shaped. The locking-sleeve may be formed by a recess in a detachable handle. Packing shims may be provided.
Patent GB-854635-A (GB)
Title: Automatic frequency control system
Inventor: JNR WILLIAM EVANS MORGAN
IPC: H03J7/22
Filed: 1954-07-21
Abstract: 854,635. Automatic frequency control systems. SPERRY RAND CORPORATION. July 21, 1954, No. 21332/54. Class 40(5). In a hunting, difference frequency A.F.C. system for a pulsed radar set, a selector-relay circuit is provided to present the receiver localoscillator locking on to the image frequency. Reference is made to Section 7 of "Microwave Mixers", Vol. 16., M.I.T. Radiation Laboratory Series, for known parts of Fig. 1, wherein a sample of the output of a transmitter 11 is applied to a balanced mixer 13 together with the output of the local oscillator 14 which may be a 2K50 reflex klystron thermally tuned from e.g. 23,500 to 24,500 mc/s. by a diode-transitron slow-sweep-search-generator 79, 15, and the output of the mixer is applied through a 30 mc/s. I.F. amplifier 18 to a Weiss discriminator 19, (detailed in Fig. 2) Discriminator circuit Fig. 2. As the I.F. is swept from 34 mc/s to 26 mc/s negative pulses appear in the respective plate circuits (see Fig. 3 not shown) of anode-bend detectors 24, 25 connected to a Weiss discriminator. These pulses are applied to a cathode-coupled pair 26, 27 whereby the output of 25 only is inverted to produce a difference signal at the anode of 27 (see Fig. 4, not shown) which is a negative peak at 34 mc/s. decreasing to zero. at the cross-over frequency 30À2 mc/s and rising to a positive peak at 26 mc/s. (a corresponding image signal is produced if the local oscillator is swept through and above the transmitter frequency). In addition to the difference signal a sum signal is taken from the cathode circuit of valves 26, 27 for the selector holding circuit, and this sum signal is substantially constant as the I.F. is swept from 34 mc/s. to 26 mc/s. (Fig. 5 not shown). Relay-selector circuit Fig. I. The difference signal from the discriminator passes through a video amplifier 51 to the closing-channel-diode 53, which accepts only positive pulses (i.e. negative pulses from the discriminator) so that as the I.F. sweeps through 34 mc/s. relay 69 is operated to complete the control circuit over contact 71. Thus when the discriminator output starts to become positive, and is accepted by the control channel diode, the sweep action of the transitron oscillator is stopped, and valve acts as a normal D.C. amplifier (see sec. 7À13 microwave mixers). If the local oscillator fails to lock-on at the required point and the sweep continues above the transmitter frequency, although the control channel will accept positive pulses from the discriminator at the image lock-on point, since there are no preceding negative pulses to operate the relay-closing-circuit, the control pulses will not be passed on to the slow-sweep-searchgenerator, and the relay holding circuit remains disabled by contact 72.
Patent GB-732714-A (GB)
Title: Improvements in and relating to welding elements and methods of making welding elements
Inventor: HOWE EARL EDWARD
IPC: F16B37/06
Filed: 1952-08-25
Abstract: 732,714. Nuts and bolts; shims. OAKLEY, J. L. D. (Howe, E. E.). Aug. 25, 1952. No. 21348/52. Classes 89(1) and 89(2). [Also in Groups XIV and XXII] Nuts and bolt heads are provided with heat localizing welding projections that extend from the corners beyond the original confinee of the nut, &c. The projections are produced by dies that cause a local flow of metal at the corners only. The projections are thus widely spaced from the threads, and clogging by the welding flash is avoided. An ordinary square nut 1 is supported on a lower die 3, Fig. 6, having recesses 4 to receive and shape metal flowing from the corners under pressure of projections 6 on the upper die that press down metal from the corners forming faces 7 parallel to the axis of the nut, faces 8 perpendicular to the axis, and projections that extend at 8b beyond the original confines of the nut and project at 8c beyond the end face. In a modification the projections remain flush with the end face of the nut and the part having the faces 7 can enter a hole in a plate to serve as a pilot, welding taking place on the faces 8. In a further form metal from the corners is spread laterally to form ears 46, Fig. 18, bearing welding projections 67. One of the forging dies may be axially bored to pass the shank 51, Fig. 21 of a bolt, the die to have the hole being chosen according to whether the projections 56 are to be formed on the face 53 or that adjacent the shank. As shown the projections serve for welding the bolt to a plate 58, but when the projections are on the other face, the shank of the bolt is passed through a hole in the plate. The projections may be formed by displacing the whole of the metal of the corners either towards the shank at 84, Fig. 30 or away from it at 84a, by a quasi bending operation in dies, and nuts may be similarly treated. In other forms the whole of the head except the corners is thinned by pressure between dies, the resulting flow causing projections to form at the free corners. Round-headed bolts may be thinned by a square die with the formation of segmented projections 97, Fig. 40. Welding projections may be formed on one limb of an angle bracket, the other limb being drilled and tapped. Shims or like flat packing pieces may also be formed with welding projections on one face.
Patent GB-516327-A (GB)
Title: Improved method of, and apparatus for charging carbonising plant, such as coke-ovens and retorts
IPC: C10B31/04
Filed: 1938-07-19
Abstract: 516,327. Delivering. material from hoppers; trimining and spreading material. WOODALLDUCKHAM (1920), Ltd., KRALL, R. F., and TOWNEND, F. S. July 19, 1938, No. 21358. [Classes 78 (i) and 78 (iv)] [Also in Group XII] In a system of charging carbonizing retorts, more particularly with small-sized damp coal, quantities of coal are deposited from a storage bunker on to one or more stationary horizontal band conveyers 5 mounted on a charging car 4 and then run off from the conveyers set into motion down coacting shoot 6, all at the same end of the conveyers, into the retorts. The conveyers may be driven by pawl and ratchet mechanism 10, may be supported between their ends by rollers 9, and may be adjusted in height by screws 12 to vary the charge deposited on them. The outlets of the bunker may have rack and pinion operated sliding doors 15 having diagonally transverse levelling scrapers 17 underneath, and may be positioned slightly to one side above the conveyers whereby room may be left at one side of each conveyer for coal swept there by the scrapers on the closing of the outlet doors vertical plates-on the car being provided at each side of each conveyer to support the coal.
Patent GB-401827-A (GB)
Title: Improvements relating to hinges
IPC: E05F1/12
Filed: 1932-07-29
Abstract: 401,827. Hinges. TONKS, W. H., and SPARKS, W., 201, Moseley Street, Birming- ham. July 29, 1932, No. 21412. [Class 65 (ii)]. A spring hinge comprises a pair of members for attachment to a door and door frame respectively, provided with pivotallyconnected knuckle parts arranged to form a space between them, a spring and slide arranged in one of the parts, a slide-operating cam or cams on the other part, and means for adjusting the spring, the outer end of the adjusting means being arranged accessibly in the space between the knuckle parts and the cam or cams being arranged to act, through the agency of the slide, on the end of the spring adjacent to the outer end of the adjusting means. In the form shown, a plate a fixed to the door frame has a rectangular aperture and an extension b, c, to accommodate a box-like slide d, and, on the other face, two knuckle parts m which are connected by pins s with knuckles o on the door. The knuckles o are carried by parallel plates n on either side of the door, and are cam-shaped to operate the slide d when the door is opened ; the cam-engaging surfaces of the slide are provided with wearresisting strips r. The closing spring e is mounted between the fixed part c on the plate a and a member f screwed into the slide d ; the tension of the spring is adjusted by rotation of the member by a square rod h with a head i adapted for engagement by a screw-driver or other tool and having a grooved shoulder j for engagement by a set-screw (not shown) to lock the parts in the adjusted position. When the door is open, the adjusting means i is readily accessible in the space between the knuckles o, and the spring can thus be easily adjusted or displaced without dismounting the door.
Patent GB-140514-A (GB)
Title: Improvements in or relating to rotary kilns and method and means of heating same
IPC: F27B7/34
Filed: 1918-12-21
Abstract: 140,514. Fenton, H., and Vivian, A. W. H. Dec. 21, 1918. Rotary kilns.-A kiln of the kind having an inclined revolving cylinder A is fired alternatively by one or more liquid-fuel burners arranged at one end in openings such as Bx, or by coal fires on grates D, one on either side, with flues E opening laterally into the intermediate chamber C.