baber/WOPTO huggingface dataset:
Patent GB-868918-A (GB)
Title: Sewing machine with thread tension device
IPC: D05B47/00
Filed: 1959-08-17
Abstract: 868,918. Sewing machines. SINGER MANUFACTURING CO. Aug. 17, 1959 [Sept. 18, 1958], No. 27979/59. Class 112 A thread tensioning device in a sewing machine comprises a screw-threaded arbor 3 fixed in the frame 1 of the machine and having a head 9 at its free end, a finger-operable tension-adjusting nut 10 screwed on the arbor, co-operating tension discs 20 located on the arbor adjacent the head, a spring 24 interposed between the nut and the discs to bias the latter together, a tensionrelease element 21 interposed between the spring and discs, and a lever 27 operable to move the element 21 lengthwise of the arbor for compressing the spring to release the thread tension. The arbor is fixed in a wall 4 at the open top of the frame 1. The top is closed by a removable cover 2 formed with an opening 11 through which the upper part of the adjusting nut projects. The inner end of spring 24 bears against a disc 12 slidably but non-rotatably mounted on the arbor. A disc 17, interposed between disc 12 and nut 10 is releasably secured to the latter by a pin-and-hole connection to permit of relative angular adjustment between nut 10 and disc 17. Radial lugs on the respective discs 12 and 17 co-operate to limit turning of nut 10 to one revolution. The element 21, which is cupshaped, has an outwardly flanged rim 26, and its side portion co-operates with a sleeve portion 16 integral with disc 17 to close the opening 11 in front of nut 10. A non-rotatable disc 35, biased against the rear face of nut 10 by a spring 38, has a flange 36 which closes the opening 11 behind nut 10. A double-armed lever 27 has a forked arm 27 which embraces the cup 21 and is biased away from flange 26 by a spring 31 acting on the other arm. A bell crank lever 32 is engaged by a pin 33 on the presser lifter lever 34 which the latter is actuated to raise the presser foot, whereby lever 27 is rocked to engage fork 29 with flange 26 for releasing the spring pressure from the discs 20.
Patent GB-858361-A (GB)
Title: Improvements in or relating to disc or drum brake units
Inventor: LANE ARTHUR HAMPTON
IPC: B64D35/00
Filed: 1956-09-13
Abstract: 858,361. Aircraft engine brakes. ROTOL Ltd. Dec. 3, 1957 [Sept. 13, 1956], No. 28073/56. Class 103(1). A brake unit, particularly for preventing the rotation of a propeller turbine for a parked aircraft comprises a casing 18, a brake shaft 11 and bearing means 12 between the casing 18 and shaft 11 adapted to support the shaft 11 and locate it against axial movement relative to the casing, a brake disc or drum 14 disposed within the casing 18 and mounted on the brake shaft, and brake operating means 16 detacbably mounted on the casing and operable to engage with and disengage from the disc or drum 14, wherein the brake shaft 11 is accessible from the exterior of the casing and is adapted to make a positive drive connection with shaft 28 by relative movement between the brake shaft 11 and other shaft 28 in the direction of the axis of the brake shaft. Specification 734,271 is referred to.
Patent GB-1484249-A (GB)
Title: Key operated lock mechanisms and keys therefor
IPC: E05B47/00
Filed: 1974-09-10
Abstract: 1484249 Magnetic locks LOWE & FLETCHER Ltd 10 Sept 1974 [13 June 1973] 28075/73 Heading E2A A magnetic lock has tumblers 10a, 11a made of a non-magnetic material and provided with a plurality of formations for receiving a magnet 31, at least one of these formations actually containing one. The key 33 has a shank 35 provided with a number of blind bores 39 corresponding in position to the formations 28, 29, 30 in the tumblers with the bore corresponding to the one in the tumbler which contains a magnet also containing one 42. The poles of these magnets are so arranged that the tumblers are retracted to the position shown in Fig. 2, that is out of engagement with the outer cylinder 16 of the lock by mutual attraction on insertion of the key. In this position the key-receiving member 12 may be rotated to actuate the unlocking mechanism. The tumblers are raised to the engaged position by a weaker repulsion between like poles of the magnets 26 in the key-receiving member 12 and 25 in the tumbler. The key 33 is provided with shoulders 42 which engage with the key plate 43 to prevent the key being withdrawn when the tumblers have been rotated out of the position in which they are aligned with the corresponding recesses 20 in the outer cylinder 16. In an alternative arrangement the polarity of the magnets is altered so that the tumblers are biased to the disengaged position. Insertion of the correct key causes them to engage so that rotation of the key rotates the outer cylinder 16 to which the lock drive is linked.
Patent GB-1000295-A (GB)
Title: Cooling apparatus for the waste gases of a steel-making converter
IPC: C21C5/40
Filed: 1961-08-03
Abstract: 1,000,295. Heating steam boilers by waste gases; converter chimneys; charging hoppers for converters. WAAGNER-BIRO A.G., and VEREINIGTE OSTERREICHISCHE EISEN-UND STRAHLWERKE A.G. Aug. 3, 1961 [Aug, 11, 1960], No. 28181/61. Headings F4A, F4B and F4J. In a plant for manufacturing steel by a converter process heat is recovered from the converter blow gas by passing it horizontally over tubulous surfaces through which flows a fluid, e.g. water to be evaporated, the tubes forming the surfaces being vertically disposed and the gases transmitting their heat to the tubes firstly by radiation and subsequently by convection as their temperature falls. In the apparatus shown the blow gases discharge from the converter 1 into a double-walled, water-cooled hood 4 which has an insertion opening 5 for the oxygen lance and a feed hopper 6 for flux materials which are delivered from a bin 7 above a weighing and metering device 8, the hood diverting the gases for horizontal flow through a slag screen 9 of suspended Field tubes, a chamber 35 into which secondary air and possibly supplementary fuel is injected at 34 and which may contain a superheater, a radiation chamber 10 and two lateral chambers 11, whence the gases discharge through purifying plants and exhaust fans to a stack. The chamber 10, which is bounded on each side by contacting double tubes 21, 22 of large diameter which serve to support steam and water drums 15, contains rows of widely-spaced radiant evaporating tubes 19, whilst the side chambers 11 contain banks of narrowly-spaced convection heated tubes, the latter and the tubes 19 extending between a grid of distributing and collecting headers 16, 17 which, with the double tubes 21, 22, form a self-supporting framework for the boiler. The inner tubes 22 of the double tubes form downcomers conveying water from the drums to the headers 16, a semi-cylindrical baffle 23 preventing admixture of the water entering the downcomers with the steam-water mixture entering the drum from the outer tubes 21. The outer tubes shield the downcomers from heat. To promote circulation feedwater is injected downwardly into each downcomer, Figs. 9 and 10 (not shown). In a modification, Figs. 6 to 8 (not shown), designed for operation at lower pressure, the central and lateral chambers are each divided by a longitudinal partition and the grids of headers are omitted, the generating tubes extending from a pair of lower headers directly to the drum. The waste gas cooling apparatus may also supply hot water or hot air instead of steam.
Patent GB-392816-A (GB)
Title: Improvements in and relating to automatic multi-spindle turret-lathes
IPC: B23B9/00
Filed: 1932-10-10
Abstract: 392,816. Turret-lathes. SCHTTE, A. H., 76, Rheinallee, Deutz, Cologne, Germany. Oct. 10, 1932, No. 28226. Convention date, Oct. 24, 1931. [Class 83 (iii).] The tool or work spindle drum of an automatic multiple-spindle turret lathe is provided with means for clamping both in the radial and axial directions, the clamping in the radial direction being effected by means independent of and operating subsequently to the means effecting the axial clamping. The control of such a device is by hydraulic means comprising a cylinder k, containing pressure fluid, opened or closed by cam pieces on the drum h thereby admitting fluid to pistons m, n.; the former operate levers and eccentric pins t which carry blocks t<1> adapted to bear against a collar u on the turret to clamp it in an axial direction while the latter rotates, through a lever, a double threaded screw w, the threads being of opposite hand and serving to draw together a pair of arcuate clamping blocks which bear against the top of the drum and secure it in correct radial position after each indexing movement. Springs are used to balance the pressure on the pistons and return them to the inoperative position, that used for the radial clamps being stronger than those for the axial clamping pistons, thus resulting in the latter coming into operation first.
Patent GB-534870-A (GB)
Title: Improvements in and relating to gyro-verticals and artificial horizons
IPC: G01C19/44
Filed: 1939-10-19
Abstract: 534,870. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. Oct. 19, 1939, No. 28262. Convention date, Oct. 21, 1938. [Class 97 (iii)] In an artificial horizon or vertical indicator, the gyroscopic element is maintained vertical by a gravitationally unstable body; the body may control the escape of air from symmetrically arranged apertures in a casing carried by the gyro casing. As shown, the gyro casing 3 in an artificial horizon as described in Specifications 393,695 and 417,185 carries a casing 7 from which air, entering through openings 11 from the casing 3, escapes by equally-spaced passages 12 having tangentially-arranged exits. A top-like body 9 rests freely in a conical depression 10 and leans in the direction of tilt, if the gyro axis is not vertical, to impede the escape of air from one or more passages ; the air escaping from the other passages then exerts a torque round a horizontal axis and erects the gyroscope. The body 9 may contain a circular recess within which a ball may roll to increase the tilt. Alternatively, its point may be replaced by a recess into which a supporting pin may project from below, or it may consist of a disc formed with a supporting pin and controlling orifices by its under surface. The casing 7 may be replaced by a casing below the casing 3, the stud 18 and balancing weights 21 being then above the casing 3. A construction of the casing 7 comprising inserted tubular elements is described.
Patent GB-916870-A (GB)
Title: Improvements in shaped explosive charges
IPC: E21B43/117
Filed: 1959-08-18
Abstract: 916,870. Blasting devices. SOC. DE PROSPECTION ELECTRIQUE SCHLUMBERGER. Aug. 18, 1959 [Oct. 20, 1958], No. 28268/59. Class 9 (1). A shaped explosive charge 2, for use in well bores, has a liner 5 which consists of or includes at least one alloyed or unalloyed metal, e.g. cerium or lanthanum, of the rare earth group. In Fig. 7, the charge is located in a case 1 by the conical lines 5 and is fired by a detonator 3. A stack of charges, in a cylindrical hollow body 8 in a well 9, is retained in an opening in the forward wall of the body by centrally recessed plugs 10, screwed into the opening, and in a recess 11 in the rear wall of the body. The liner may be of copper, or other neutral substance, coated or partially coated on either surface with a substance including at least one metal of the rare earth group, and may also include another metal of the titanium group. In another embodiment, Fig. 8, the case 1 is provided with a tightly fitting stopper 12 and may be lowered directly into a bore-hole, without being first placed inside a hollow body. Liners produced by casting or stamping, or by sintering with or without a binder, are referred to.
Patent GB-480885-A (GB)
Title: Improvements in high vacuum distillation of oily materials
IPC: B01D3/34
Filed: 1936-10-17
Abstract: In the high-vacuum distillation of oils, fats, waxes and the like containing easily oxidizable materials such as vitamins A, D and E, oxidation of these vitamins, as by absorbed oxygen or peroxides, is prevented by effecting the distillation in the presence of an antioxidant having a volatility approximating to that of the desired distillate; 0,001-1,0 per cent is suitable.  The antioxidant may be left in or removed from the collected fraction.  Short-path high-vacuum distillation is preferably employed with distilling temperatures of 70-250 DEG  C.  A mixture of antioxidants may be used each having a volatility near that of the fractions to be collected. Antioxidants specified p  comprise hydroquinone, pyrogallol, furfurol, pyrocatechol, hydroxyhydroquinone, p-amino-phenol, 1-2-4-trihydroxybenzene, 2-amino-5-hydroxytoluene, benzyl - p - aminophenol, p - hydroxy - phenylmorpholine, dibenzyl-p-aminophenol, 1-5-dihydroxynaphthalene, 2-4 and p-p1-diaminodiphenylamines.  Fish liver and body oils to which the process may be applied comprise tuna, jaw, ling, cod, halibut, salmon, herring, mackerel, sardine and menhaden.  In one example 100 litres of cod liver oil and 1 to 10 grams of 1 : 2 : 4-trihydroxy-benzene are distilled under short-path conditions at ,001 mm. of mercury.  The chief vitamin constituent of the respective fractions collected at 120 DEG , 150 DEG , 170 DEG and 200 DEG  C., is vitamin A, vitamin D, vitamin A esters and vitamin D esters respectively.  The trihydroxy-benzene collects mainly in the early and middle fractions.ALSO:In the high vacuum distillation of oils and fats containing vitamins A, D and E, which may also contain absorbed oxygen or peroxides, oxidation of the former by the latter is prevented by effecting the distillation in the presence of an antioxidant having a volatility approximating to that of the desired distillate, and collecting a fraction containing the vitamins and antioxidant in admixture.  Short-path high vacuum distillation is preferably employed with distilling temperatures of 70-250 DEG  C.  A mixture of antioxidants may be used each having a volatility near that of the fractions to be collected.  Antioxidants specified comprise hydroquinone, pyrogallol, furfurol, pyrocatechol, hydroxyhydroquinone, p-aminophenol, 1.2.4-trihydroxybenzene, 2-amino-5-hydroxytoluene, benzyl-p-aminophenol, p-hydroxy - phenylmorpholine, dibenzyl - p-aminophenol, 1.5-dihydroxynaphthalene, 2.4 and p-p1-diaminodiphenylamine. Fish liver and body oils to which the process may be applied comprise tuna, jaw, ling cod, halibut, salmon, herring, mackerel, sardine and menhaden.  In an example, 100 litres of cod liver oil and 1 to 10 grams of 1 : 2 : 4-trihydroxybenzene are distilled under short path conditions at ,001 mm. of mercury.  The chief constituent of each of the fractions collected at 120 DEG , 150 DEG , 170 DEG  and 200 DEG  C., comprises vitamin A, vitamin D, vitamin A esters and vitamin D esters respectively.
Patent GB-791451-A (GB)
Title: An improved spray gun
IPC: B05B11/06
Filed: 1954-10-01
Abstract: 791,451. Spray-producers. MUNSTER DEVELOPMENTS CO. (FULHAM), Ltd., and RAWLINS, B. H. A. D. Sept. 30, 1955 [Oct. 1, 1954], No. 28304/54. Class 69 (3). A.spray gun of the kind in which an air stream delivered through a passage 2 in a spray head 1 draws up liquid from a container through a tube 6 and sprays it, is connected via a flexible rubber tube 4 and a one-way ball valve 5 to a tyre pump. In operation, the tube 4 provides a reservoir for the air supplied by the pump and a continuous spray is produced.
Patent GB-228977-A (GB)
Title: Improved construction of bib or like cock or valve
IPC: F16K27/02
Filed: 1923-11-10
Abstract: 228,977. Sherratt, J. T. Nov. 10, 1923. Seats and valve members.-A tubular cagelike member 6 provided with the valve seating 20 is screwed to a sleeve 10 which is internally threaded to receive the screwed spindle 12. This removable unit, in which the valve is mounted, is secured in position by a cap 15 which screws into the outer casing 1 a,t 17 and, with a smaller threaded part 16, into the sleeve 10, in which it compresses packing 19. A modified form is described in which the outlet 5 is brought round into a position coaxial with the valve.
Patent GB-707041-A (GB)
Title: Improvements in or relating to railings
IPC: A01K1/00
Filed: 1949-11-05
Abstract: 707,041. Handrails. POWER UTILITIES, Ltd., and HOLLANDS, H. W. Nov. 6, 1950 (Nov. 5, 1949; Feb. 17, 1950], Nos. 28367/49 and 4063/50. Class 45. [Also in Groups XXII and XXVIII] The stanchions 10 of a railing structure are connected to at least one line of longitudinal tubular rails 18 by means of spigots 22 on the stanchions, the spigots extending inside the rails and each being tormed on or secured to a wider base element 13 abutting the end of the rail and whose cross-sectional shape and dimensions conform at the position where it meets the rail to those of the outer surface of the rail, the base element merging smoothly into the upright portion of the stanchion, the rails being retained in position by welding portions of them to the base elements or spigots. The plane of the abutting faces of the rail and element 13 may either be perpendicular to the longitudinal axis of the rail or if it is desired to fit the rail after the stanchions are in position the element 13 at one end of the rail may have an oblique end face 24 from which part of a cylindrical spigot 23 projects. The end 2 of the rail is formed in a corresponding oblique manner and consequently the rail may be positioned by a lateral movement. After assembly the rails are tack welded at four points at each end to the elements 13, any roughness being subsequently ground away. Instead of the spigot being integral with the fitting it may be in the form of a tube. The top rail may be secured by similar spigot joints or alternatively the top of the 'stanchion may have a cradle 16 which is attached to the rail by a bead or fillet of welding along the edges 30 and 31. The stanchions comprise tubes 11, 12 to which the fittings 13, 16 and a footing 14 are attached by flash-butt welding. The fittings and footing are recessed as indicated at 25 and 27 to facilitate the welding. The second Provisional Specification states that the intermediate rails may be flash-butt welded to the stanchions. Specification 707,129 is referred to.
Patent GB-359157-A (GB)
Title: Improvements in or relating to strainers for sink pipes and the like
IPC: E03C1/264
Filed: 1930-09-23
Abstract: 359,157. Strainers. DOWLER, H. B., Lawden Works, Lawden Road, Small Heath, Birmingham. Sept. 23, 1930, No. 28368. [Class 46.] A strainer for use in connection with the discharge pipes of kitchen sinks, baths, &c., consists of an elongated wire coil or cage a, Fig. 2, supported by an annular flange d which is preferably in the form of a sheet-metal ring. The upper turn c of the coil is secured by the down-turned rim e of the part d which is formed with a gap f to facilitate the insertion of the turn c. An alternative form for use with a sink pipe having a cross-grid j, Fig. 4, is provided with a slightly convex flange d. A single piece device may be made by extending and enlarging the upper turns of the coil to form a flat wire collar.
Patent GB-959916-A (GB)
Title: Improvements in or relating to electrically operated points
Inventor: PRUSA BOHUMIL
IPC: B65G47/48
Filed: 1962-07-24
Abstract: 959,916. Electrically operated points in a conveyer system. KOVOTECHNA, NARODNI PODNIK. July 24, 1962, No. 28498/62. Heading B7L. Electrically - operated points for a conveyer system has a friction clutch 2 on the driven shaft of a reversible electric motor 1, the driven part of the clutch carrying a cam disc 8 for operating a limit switch 5 and also carrying stops 9 which co-operate with stop 15 on a fixed yoke 6 to define limit positions for rotation of the disc 8, a crank-pin 10 on the disc being connected to the points 4 by a resilient element 3. The rod 11 of element 3 is centred relative to its casing by springs 12, pins 13 in slots in the casing defining the limits of the movement of rod 11 in the casing. Energization of motor 1 through switch 5 causes rotation of disc 8 until a stop 9 engages stop 15, the points 4 being moved over against a stop on the main track and pins 13 move to abut the other end of the slots. Switch 5 has three positions, two end positions when stops 9 and 15 engage wherein current can be passed to the motor for rotation in opposite directions, and a central position allowing current to flow in either direction to the motor. A cable 7 enables the clutch to be manually operated.
Patent GB-399319-A (GB)
Title: Improvements in processes of bleaching by means of hypochlorites
IPC: D06L4/23
Filed: 1932-10-13
Abstract: Materials of vegetable origin are bleached by means of a hypochlorite bleaching liquor containing an ester derived on the one hand from a sulphonated aromatic dicarboxylic acid and on the other hand from an alcohol containing more than two carbon atoms, or a salt of such an ester.  The process is applicable to the bleaching, by means of solutions of sodium or calcium hypochlorite, of various materials of vegetable origin, e.g. vegetable fibres such as cotton, ramie, jute, flax or hemp, also other materials such as paper, straw, sulphite cellulose or ground wood, or artificial materials such as regenerated cellulose, e.g. viscose or cuprammonium artificial silk, or cellulose esters, e.g. acetate artificial silk.  It may also be applied to the cold bleaching of vegetable materials which have not been boiled, e.g. loose raw cotton.  In examples: (1) raw cotton is treated with a chlorine bleaching liquor containing the sodium salt of the amyl ester of sulphophthalic acid, and is then rinsed and passed through a bisulphite bath; (2) cotton piece goods desized by means of "Diastafor" or in some other manner are boiled under pressure with sodium hydroxide solution and then treated with a chlorine bleaching liquor containing the sodium salt of the ester of sulphophthalic acid with amyl alcohol or with a hydrogenated cresol.  Specifications 370,845, 371,144, 372,855, and 399,320 are referred to.  The Specification as open to inspection under Sect. 91 comprises the use of esters from sulphonated aromatic dicarboxylic acids and organic hydroxy compounds in general containing more than two carbon atoms. This subject-matter does not appear in the Specification as accepted.