baber/WOPTO huggingface dataset:
Patent GB-720029-A (GB)
Title: Improvements relating to domestic fireplaces of the open fire type
IPC: F24B1/189
Filed: 1952-02-12
Abstract: 720,029. Open fireplaces. HOLMES, L. April 27, 1953 [Feb. 12, 1952], No. 3637/52. Class 126 An open fireplace having an air conduit leading from outside the space to be heated to the chimney throat is provided with a damper controlling the conduit which, in the open position, partially closes the chimney throat. Conduits 12 lead from below the floor to a conduit 121 extending across the top of the fireplace and opening into the throat 13 of the chimney. An open-ended box structure 17, Fig. 8, extending the width of the throat carries a pivoted damper 16, which is operated by a linkage and lever 18 to close the outlet from the conduit 121, or to open this outlet and reduce the chimney throat. In a modification, the conduits 12 open into an air space behind the fireplace, which may be the cavity of a cavity wall.
Patent GB-284980-A (GB)
Title: Apparatus for separating dust from gases
IPC: F16L9/14
Filed: 1928-02-06
Abstract: 284,980. Stievenart, A. Feb. 4, 1927, [Convention date]. Density separators. - Dust is separated from flowing gas in a number of compartments arranged one in the other, and terminated by a device for retaining the dust. The apparatus has an outer casing 1 with a duct 2 for the admission of the dust-laden gas, and a number of concentric compartments 3 having helical top and bottom surfaces 3b. Each compartment, except the outermost one, has a duct 4 forming a continuation of its outer side and part of the top and bottom; these ducts carry the dust from the compartments 3 to the conical wall 1<d> of the casing 1. The height of the ducts decreases and the width of their upper and lower walls 4a increases as they approach the outer wall. The clean gas passes out through the chimney 5. The dust retaining ducts may be replaced by water spray pipes 6 disposed at the exit of each compartment. The water spray crosses the compartment and holds dust to the outer wall. The ducts 4 may be used in combination with the water spray as dust collecting means.
Patent GB-483407-A (GB)
Title: Improvements in or relating to the manufacture of articles subject to corrosion or intergranular attack in steam from copper base alloys and to the heat treatment of said alloys
IPC: C22C9/05
Filed: 1937-02-08
Abstract: Corrosion-resistant copper alloys particularly for making articles for use in contact with steam such as tubes, turbine parts, tanks, valves, &c., contain 86-99,9 per cent of copper, 0,01-11 per cent of manganese, and 0,01-3 per cent of cadmium, with or without up to 0,2 per cent each, or a total of 0,5 per cent, of one or more of the elements iron, tin, phosphorus, and chromium.  Silicon may also be present as an impurity.  Heat treatment may comprise heating above about 600 DEG  C., quenching, and age hardening at 300-600 DEG  C.
Patent GB-690026-A (GB)
Title: Improvements in or relating to hot-gas reciprocating engines and engines operating on the reversed hot-gas engine principle
IPC: F02G1/053
Filed: 1948-02-09
Abstract: 690,026. Refrigerating. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 9, 1948 [Feb. 12, 1947], No. 3726/48. Class 29 [Also in Group XXVII] In a multi-cylinder cold air engine operating on the reversed hot gas reciprocating engine cycle each cylinder constitutes a separate structural element mounted on a mounting plate by means of a screw joint concentric with the axis of the cylinder and is in permanent communication with two other cylinders by means of channels in the mounting plate. In Fig. 1 a piston 3 has secured thereto a tubular member 4 which together with a member 6 forms a guide for the piston. The member 6 is secured to a mounting plate 2 by a nut 8 and also serves to retain a cylinder 1 in position. The space above the piston in the cylinder 1 communicates through a passage 22 with a space at the underside of a piston in an adjacent cylinder and the underside of the piston 3 is connected through a passage 21 with the space above the piston of another adjacent cylinder. The head 19 heater 16 and regenerator 15 are all formed in one casing fixed to the upper end of the cooler 10 by a nut 14. In a modification the casing is held to the cooler by a divided clamping ring. The screw threads and nuts may be single or multiple threaded. It is also possible to use a form of screw joint constructed like a bayonet joint. The cylinders are arranged with their axes mutually parallel and the pistons act through swash plate mechanism and drive a central shaft. The Specification as open to inspection under Sect. 91, describes a modification comprising a four cylinder engine, Fig. 4 (Cancelled), and having four cylinders 32 and a mounting plate 33. The pistons act on a centrally arranged crank shaft. Application of the invention to heat pumps is referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-470254-A (GB)
Title: Process for the manufacture of clear soap with the employment of sulphite cellulose spent lye
IPC: C11D13/02
Filed: 1936-02-07
Abstract: Transparent soap is made from sulphite cellulose spent lye by treating the latter with chloride of lime, neutralizing with an acid which precipitates the calcium, filtering, oxidizing the purified lye with ozone or hydrogen peroxide, concentrating and mixing with a liquid soap.  The treatment with chloride of lime may be effected in a colloid mill, or by heating with or without pressure.  In a modification, the crude lye is treated with calcium hydroxide and chlorine, or with chloride of lime and free chlorine.  Acids specified are sulphuric, phosphoric and oxalic. The lye may be concentrated before oxidation, by adding calcined gypsum.  During the oxidation, hydrochlorous acid may be added as catalyst.  Glycols, polyglycols, monochlorhydrins or dichlorhydrins may be added to the soap to prevent efflorescence.
Patent GB-1360384-A (GB)
Title: Alloy
IPC: G04B37/22
Filed: 1973-01-25
Abstract: 1360384 Nitride containing composition SUWA SEIKOSHA K K 25 Jan 1973 [31 Jan 1972] 3739/73 Heading C7A Alloy consists of:- and Ti up to 40% The alloy is preferably made by pressing and sintering a suitable powder mixture and may be used in watch-cases, lighters or ornaments.
Patent GB-727841-A (GB)
Title: Improvements in spraying apparatus
Inventor: MORTIMER JOHN DOUGLAS
IPC: B31F1/28
Filed: 1953-02-11
Abstract: 727,841. Corrugated paper. MANCHESTER OIL REFINERY, Ltd. Feb. 10, 1954 [Feb. 11, 1953], No. 3788/53. Class 96. [Also in Group XXIX] In machines for rolling corrugated paper, the paper is passed through pairs of fluted rollers, and each pair is sprayed at the nip with lubricant. The spraying apparatus (see Group XXIX) includes a line of nozzles C emitting fan-shaped sprays mounted on a bar F extending parallel to the nip of rollers E.
Patent GB-197040-A (GB)
Title: Improvements in vehicular head-lights, search-lights and the like
IPC: F21V7/04
Filed: 1922-02-09
Abstract: 197,040. Edison Swan Electric Co., Ltd., and Hiatt, C. E. Feb. 9, 1922. Search-lights; vehicle lamps; lantern obturators.-In a vehicle head-light, search-light, &c., the lamp bulb 13 is provided with an obturator or shield 15 at its upper portion behind the focus 12 of the reflector 10, and a similar shield or obturator 16 at its lower portion in front of the focus. The shields &c. 15, 16 may be formed by coating, blacking, silvering, enamelling, frosting, or by applying metal shields to that portion of the bulb above a horizontal plane passing through the axis of the reflector and behind a plane perpendicular to this axis through or near the focus, and by similarly treating that portion of the bulb below the horizontal plane and in front of the vertical plane, or a light obturating substance such as opal may be fused to or formed integrally with the wall of the bulb. The metal shields may be adjustable or telescopic, being made in two or more portions so that the outer portion may be moved over the other, the movement of these portions being limited by stops to limit the obturator areas as above. The lamp bulb is also applicable for flood light and sign illuminators.
Patent GB-577102-A (GB)
Title: Process for the preparation of a varnish with a basis of flexible phenol-formaldehyde resin
Filed: 1942-03-25
Abstract: Varnishes suitable for forming adherent flexible coatings on metal &c. surfaces when baked thereon at 180-450 DEG  C., are obtained by diluting with organic solvents, e.g. acetone, butanol, benzene, a mixture comprising 75-50 per cent of a phenol-formaldehyde resin prepared in an alkaline medium in presence of a catalyst comprising a salt of an organic acid having at least one hydroxyl group and 25-50 per cent of a coumarone resin obtained by the acid treatment of coal tar fractions distilling between 160 DEG  and 185 DEG  C. Hydroxyacids specified as catalysts are tartaric, citric, lactic acids.  The phenol-formaldehyde resin is obtained by adding to 250 grs. molten phenol a mixture comprising 3 grs. tartaric acid dissolved in 7 grs. water, 50 grs. 20 per cent ammonia and 200 grs. 40 per cent formaldehyde.  The mixture is refluxed at 130-140 DEG C., the upper layer is separated, dehydrated in vacuo, diluted with 125 grs. acetone and 125 grs. butanol and then mixed with a solution of 90 grs. coumarone resin in 250 grs. benzene.  The varnish may be used for coating metal containers, pylons, magnesium alloys.
Patent GB-123425-A (GB)
Title: Improvements in or appertaining to Mechanism for Reversing the Automatic Traverse of Machine Tools.
Inventor: ATKINS HARRY FREDERICK
IPC: B24B47/04
Filed: 1918-03-07
Abstract: 123,425. Atkins, H. F. March 7, 1918. Driving-devices.-The automatic traverse of a reciprocating part, such as a grinding-machine table a, driven through a worm e and wormwheel d, is reversed when the traversing part a comes against a stop t or t' by causing the worm e then to act as a screw in engagement with the stationary worm-wheel d and, by its lateral motion, to operate a sliding clutch collar p on the driving-shaft n and reverse the direction of motion of the worm-shaft. The bars u<1>, u, which contact with the stops t<1>, t, may be adjusted through pinions v', v, worm-wheels w', w, and worms x<1>, . The latter are mounted on shafts y<1>, y pivoted at y<3> y<2>, so that the worms may be raised out of contact with the worm-wheels for rapid preliminary adjustment.
Patent GB-476621-A (GB)
Title: Improvements in or relating to heating systems employing hot fluids and methods of operating same
IPC: F24D1/00
Filed: 1937-02-10
Abstract: 476,621. Automatic control systems. WARREN, WEBSTER, & CO. Feb. 10, 1937, No. 3990. Convention date, Feb. 17, 1936. [Class 38 (iv)] [Also in Group XIII] Fluid pressure.-The supply of steam to a heating system is controlled by discharging at least a part of the steam into an enclosed space at a rate which is normally fixed for a given pressure of supply, discharging the steam from said space through a variable orifice, and utilizing the pressure drop to control the supply to the system at such a rate as to maintain said pressure drop substantially constant. Steam is supplied by a boiler 20 having firebox and flue dampers 21, 22 coupled to an electric motor 23 which is reversibly controlled by means sensitive to the pressure drop. The radiator supply pipes are provided with valves 28 and restricting orifices, and the outlets with steam traps 29. Fig. 2 shows the automatic control. The steam supply is discharged through a fixed orifice 30 to a space 31 which has a variable outlet orifice 32 controlled by a slide 34 actuated by a bellows 36 which is connected to a temperature-sensitive bulb 43 which may be located outside. The bellows and bulb may be filled with turpentine. The pressures on the two sides of the orifice 32 are transmitted through pipes 47, 48 to the two sides of a diaphragm 46, the movements of which actuate a mercury switch 45 through the medium of a lever 53 having a knife-edged end, bearing against the diaphragm 46. The direction of tilting of the switch 45 determines the direction of rotation of the motor 23. An independent manuallyoperated switch 61 may be provided. The area of the orifice 32 is varied in proportion to the outdoor or other temperature changes, and a substantially constant pressure drop is maintained across it, so that the amount of steam delivered is proportioned to the temperature. Instead of controlling the boiler the motor 23 may control a valve in a steam supply main, or the fuel supply. In Fig. 7, the control operates upon a main steam valve 70 through a reversible motor 71 controlled by a relay 85. The switch 86 is controlled by a modification of the apparatus shown in Fig. 2. Steam from the main 73 passes by pipe 87 to an orifice member 88 corresponding to 30, Fig. 2, but manually variable to adapt the apparatus for various conditions of use and to enable the supply of heat to be varied at different times of day. The steam passes through a space 89 to another orifice 91 corresponding to 32, Fig. 2, but manually variable to provide for outside temperature changes. Steam from the space 92 passes through pipe 95 to the return line 77 or to a radiator. Pressure in the spaces 89, 94 is transmitted to the diaphragms 99, 101 which actuate a pivoted lever 104 controlling the switch 86.
Patent GB-666712-A (GB)
Title: Improvements in the manufacture of pre-stressed reinforced concrete members such as railway sleepers and beams
Inventor: LUDLOW JOHN HEYWOOD
IPC: B28B7/42
Filed: 1949-02-14
Abstract: 666,712. Automatic temperature control systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 13, 1950 [Feb. 14, 1949], No. 3998/49. Class 38 (iv). [Also in Group V] Prestressed reinforced concrete is heated by electricity passing through the reinforcing wires C, C1. The electrical supply is reduced or interrupted when the concrete temperature exceeds a predetermined maximum, and is increased or reconnected when the temperature falls below a predetermined minimum. This variation of electrical supply is effected through a thermostat D and a cut-out relay L and a circuit breaker OCB. Specification 641,827, [Group V], is referred to.
Patent GB-688345-A (GB)
Title: Improvements in sanitary liquid traps
IPC: E03C1/294
Filed: 1951-02-19
Abstract: 688,345. Sanitary traps. GREENWOOD & HUGHES, Ltd., and HUGHES, B. D. Oct. 4, 1951 [Feb. 19, 1951], No. 3999/51. Class 33 In a sanitary liquid trap comprising a U-shaped passage 4, Fig. 1, formed by a downwardly extending partition 3 in a central vertical chamber 1 with an upper inlet 2, an outer chamber 5 surrounding the upper end of the central chamber and forming a liquid reservoir communicates with the end of the passage remote from the inlet, and has an outlet 6 in its outer wall, so that after a fall in pressure in the outlet pipe has caused liquid in the inlet side of the passage to fall until air can be drawn through the trap, liquid from the reservoir re-forms the liquid seal. A radial partition 7 may be fitted in the outer chamber, so that liquid from the central chamber must pass round it to reach the outlet. In the modification shown in Fig. 3 a second partition 8 is fitted in the central chamber to form an air vent 9 and the trap is made as two threaded parts screwed together at 10, with ribs 12 on the lower part to facilitate screwing. A closure cap may be provided at the lower end of the trap.
Patent GB-211860-A (GB)
Title: Improvements relating to doubling and spinning spindles
IPC: D01H7/14
Filed: 1924-02-16
Abstract: 211,860. Maschinenfabrik Schweiter Akt.-Ges. Feb. 23, 1923, [Convention date]. Spindle apparatus; spindle-driving apparatus. - A spinning or doubling spindle 1 is supported in a bearing 2 and is driven by a member 5 which frictionally engages the conical part 4 of a wharl 3. The drive is transmitted through a carrier 7 which is fixed to the spindle 1 and supports the bobbin 8, while springs 10 coiled around guide-pins 11 are inserted in holes 9 in the member 5, and, being compressed between the carrier 7 and the said member, strengthen the frictional connection between the members 4, 5, the greater part of the weight of the spindle 1 and the bobbin 8 acting as a load for this purpose.
Patent GB-1502085-A (GB)
Title: Apparatus for vibrating castings to recover mould materia
IPC: B06B1/16
Filed: 1976-02-02
Abstract: 1502085 Vibratory apparatus GENERAL KINEMATICS CORP 2 Feb 1976 [18 June 1975] 04036/76 Heading F2S Apparatus for vibrating castings to recover mould material therefrom comprises a substantially horizontal bed 10 for receiving the castings supported above a base 17 by springs 18, a frame 25 suspended below the bed 10 by springs 32, a pair of parallel shafts 35, 36 mounted on the frame 25 on opposite sides of and equally spaced from the centre of the frame, eccentric weights 37, 38 on the shafts, and a motor or motors 33, 34 connected to the shafts to rotate the latter so as to vibrate the frame 25 and thus through the springs 32 to cause vibration of the bed 10.
Patent GB-904812-A (GB)
Title: Improvements relating to ladders
IPC: E06C7/44
Filed: 1961-02-03
Abstract: 904,812. Ladders. BUCKLEY, A. May 17, 1961 [Feb. 3, 1961], No. 4096/61. Class 20 (2). A ladder is constructed with two stiles 1 on each side connected by links 2 and pivoted treads 3 so as to maintain the treads horizontal in use, the stiles at one side being shorter and between them is slidably adjustable a leg 4 to allow the ladder to be vertical on an uneven surface. A fine adjustment is provided by a screw peg 7. Arms 8 which hold the top of the ladder away from the wall may be swung to either face of the ladder. An extension ladder may be slid down between the stiles at each side at the upper end until its lowest rung rests on the top tread or may be held in position by adjustable pin-and-hole means. A spare tread may be fitted to holes 1x in the lower end of the longer stiles and to the extended leg 4. A step-ladder, Fig. 6 (not shown), is made by attaching a back rest having one side adjustable in length to a tread of the ladder by means of hinges.
Patent GB-345418-A (GB)
Title: Improvements in or relating to laminated springs
IPC: B60G11/113
Filed: 1930-02-07
Abstract: 345,418. Road-vehicle springs. WOODHEAD, G. A., The Grange, Old Park Road, Roundhay, and SANDERS, T. H., 77, Cowper Street, both in Leeds. Feb. 7, 1930, No. 4113. [Class 108 (iii).] The spring is connected to the axle seating by a pivotal connection which enables it to be adjusted in a longitudinal vertical plane and then clamped in position. A pair of side-plates d are rigidly connected to the axle by screwed stems d<2> and a bridge-piece c bears against one of the upper leaves. The bridge-piece c is provided with trunnions c<1> of semicircular shape to facilitate their being placed in position through circular openings d<1> in the sideplates, the trunnions being formed with grooves which retain them in position. The angle between the leaves of the spring and the spring pad b depends upon the angle of the wedge f which is inserted between them. The wedge may be prevented from movement by engagement with a projection from the lowermost leaf. The upper leaf a<1> of the spring is divided as described in Specification 236,766, [Class 108 (iii), Springs &c.], the adjacent ends a being enlarged to engage corresponding recesses c<3> in the bridge-piece c which bears upon the second leaf a.
Patent GB-783983-A (GB)
Title: Improvements in or relating to two-colour off-set printing machines
IPC: B41F7/06
Filed: 1955-02-11
Abstract: 783,983. Printing-machines. MASCHINENFABRIK AUGSBURG - NURNBERG AKT.-GES. Feb. 11, 1955 [Feb. 13, 1954], No. 4172/55. Class 100(2) A rotary two-colour offset printing- machine comprises two sets of cylinders, each set comprising an impression cylinder 4, 10, plate cylinder 2, 8 and an offset cylinder 3, 9 all disposed to form a U with the impression cylinders inset symmetrically at the bottom of the U and connected by an interposed single transfer drum 11, the diameter of which is not greater than the diameter of the impression cylinders.
Patent GB-433302-A (GB)
Title: Improvements in or relating to machine tools for performing operations on metal or other substances
IPC: B23Q17/00
Filed: 1934-02-08
Abstract: 433,302. Controlling variable-speed gearing. MURRAY, G. L., 15, North Hill Court, Headingley, Leeds. Feb. 8, 1934, No. 4200. [Class 80 (ii)] [See also Groups XXII and XXXVIII] An arrangement for setting the control handles 2, 5 of a machine tool, Fig. 1, comprises coloured symbols 4, 5 fixed at points adjacent the various positions the handles may take, and a control indicator, Fig. 2, which is attached to the machine near the handles. The indicator comprises a stationary outer casing 11 having a slot 9 and windows 6, 7, 10 through which symbols and numbers, marked on two inner rotatable drums are observable. The disc 15 rotates the innermost drum and is set to the diameter of cutter in use, while the disc 16 is marked with serial numbers representing cutting speeds. When the discs are set the appropriate symbols adjacent which the levers have to be moved to obtain the cutting speed indicated are displayed through the windows. A modified arrangement for setting the handles of boring, turning and facing machine includes a disc indicator having a dial 21, Fig. 12, which shows a replica of the whole machine, or a part of the machine such as the control gate for a lever, and has windows 67 ..... 70 through which different indications appear according to the setting of the pointer 76, this rotates a ring 22 carrying a disc arranged behind the dial. The pointer works in conjunction with a scale on the dial indicating the serial numbers of the available cutting speeds, the latter appearing through the window 19a when the pointer is properly set. Modifications of the drum and disc type indicators for giving a large number of indications are described in which gear trains are used to revolve tapes or discs. A further modification, Fig. 16, comprises electric contacts operated by a pointer 92 on a disc, which serve to connect coloured lights 95 .... 98 to indicate the positions into which the various levers have to be moved, these may be extinguished when the levers are properly set to serve as a check.
Patent GB-362241-A (GB)
Title: Improvements in or relating to bits or augers for use with hollow chisels
IPC: B27G15/00
Filed: 1931-02-11
Abstract: 362,241. Drilling and cutting square holes. HAWKSWELL, E. G. and HOWELL, C., Campbell Works, Bridge Street, Sheffield. Feb. 11, 1931, No. 4225. [Class 83 (iii).] Augers.-In a bit or auger for use with a hollow chisel g, Fig. 1, in cutting square holes and mortices, the outside edges a are grooved or serrated at d so as to break up the chips and allow their free passage up the chisel. The cutting edges e of the auger may also be grooved. Various forms of groove are shown.
Patent GB-632202-A (GB)
Title: Improvements in or relating to warp beams
IPC: D02H13/28
Filed: 1947-02-14
Abstract: 632,202. Warp beams. GROB, W. Feb. 14, 1947, No. 4253. Convention date, May 8, 1946. [Class 142 (ii)] A warp beam comprises a cylindrical tube 1 enclosed by a jacket of wooden staves 2, 3, having a groove 8 to receive a beam bar securing the warp ends. The staves are held together by flexible metal ties 6. The staves on each side of the groove are secured to the tube 1. When silk or rayon threads are used studs 9 serve as abutments for the beam bar. When cotton or artificial woollen threads are wound on the beam these studs are removed and the beam is sprung into the groove 8. The ends of the wooden jacket can be displaced by movement of the staves 3 in the axial direction of the tube to accommodate warps of different width.