baber/WOPTO huggingface dataset:
Patent GB-400328-A (GB)
Title: Improvements in or relating to electromagnetic selectors as used in automatic or semi-automatic telephone systems
IPC: H01H67/16
Filed: 1932-06-04
Abstract: 400,328. Automatic exchange switches. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and HAMIL. TON, R. M., c/o General Electric Co., Stoke, Coventry. June 4, 1932, No. 15778. [Class 40 (iv).] In a two-co-ordinate ratchet-driven switch having two or more angularly-spaced sets of wipers, the terminal rows are inclined to the horizontal in such a way that as one wiper-set steps out of one terminal row, another wiperset steps into the next row. The wipers may therefore traverse any number of terminals by rotary stepping only. The vertical ratchet 24 is in the form of a double-helix to provide the vertical movement of the shaft as the wipers rotate. Rotary movement during vertical stepping is prevented by the engagement of a slot 31 with a fixed dog 32, which also guides the ratchet 24 upwardly during rotary stepping. A second slot 35 enables the shaft to return to normal upon withdrawal of the doubledog 33 in either of two positions to which the wipers are stepped upon release. As shown, the spacing between successive terminal rows corresponds to one vertical step, but where the outlets are arranged in groups of twenty, the spacing may correspond to half a vertical step, and the ratchet 24 is then such that the driving pawl engages alternate teeth during vertical stepping. Each wiper 10 may be connected to a ring 12 engaged by a feed brush 11 clamped to a framework 13 which is arranged to move vertically with the shaft. Alternatively, each of a pair of double-ended wipers may be connected to one half of a cylindrical commutator engaged by a pair of feed brushes. Auxiliary contact springs 40 may be operated in particular positons, e.g. on the last terminal in each row, by means of a cam 41 bearing on a bar 37 pivoted to move to and from the shaft.
Patent GB-273280-A (GB)
Title: Processes for the preparation of the cellulose compounds designated as "viscose"
IPC: D01F2/08
Filed: 1927-06-14
Abstract: 273,280. Bernard, J. M. June 24, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 25, 1927]. Cellulose xanthates.-Cellulose is treated with excess of carbon disulphide in a closed vessel, the excess of carbon disulphide is removed and recovered by means of a vacuum, and caustic soda solution is then added, the vacuum preferably being re-imposed to recover remaining carbon disulphide. The cellulose, which may be in the form of pieces of wood-pulp sheet or in other form such as cotton, is placed in a churning apparatus and excess of carbon disulphide is added, either as liquid, vapour, or both. When the cellulose is saturated, the excess of carbon disulphide is removed by drawing it off at the bottom and by applying a vacuum for a few moments. Caustic soda solution is then added in some excess, and the apparatus is rotated more slowly until the xanthate is formed. A vacuum may be applied during the whole or a part of this stage of the process. The product is placed in a mixer with the necessary quantity of water, with or without soda, to give a desired percentage of cellulose and viscosity. Alternatively a single mixing apparatus may be employed for the whole process, the speed of rotation being varied at the several stages of the process; or the saturation of the cellulose with carbon disulphide may be effected in the churning apparatus, the product being then transferred, as a whole or in portions, to the mixer containing the soda solution. The cellulose employed may have been subjected to a preliminary mercerizing treatment with caustic soda, followed by washing. The viscose produced is suitable for making films and filaments.
Patent GB-119927-A (GB)
Title: Improvements in or relating to Inking Mechanism for Printing Presses.
Inventor: MELLERSCH-JACKSON WILLIAM JOHN
IPC: B41F31/14
Filed: 1917-11-01
Abstract: 119,927. Jackson, W. J. Mellersh-, (Goss Printing Press Co.). Nov. 1, 1917. Inking - apparatus. - Relates to means for operating the swinging messenger roller by which ink is transferred from the duct roller to the ink-drum, and comprises means whereby the angular relation of the arms carrying the roller may be varied with respect to the camarm by which they are oscillated, and also means for adjusting the cam to vary the extent of and control the movement of the roller. As shown, the messenger roller 4 which moves to and fro between the duct roller 2 and ink-drum 3 is carried in arms 6 adjustably fixed, as by setscrews, on a shaft 8. On the shaft 8 is fixed also an arm having a slot 12 and adjusting-screws 15, 16 with lock-nuts 17, 18. An arm 21 loose on the shaft 8 has a stud 22 projecting into the slot 12 in which it may be adjusted by the screws 15, 16 to vary the angular relation of the arms. Formed with the arm 21 is a cam-arm 23 carrying a roller 24 engaging the cam 25. By means of the screws 15, 16, the pressure of the roller 4 against the drum 3 may be adjusted, and the varying size of the roller 4 due to wear and shrinkage may thus be compensated for. In order that roller 4 may be prevented from slamming and bearing too hard against the duct roller 2, the cam 25 is made adjustable to give a variable throw by means of a spring plate 28 attached bv screws 30, and adjustable by a screw 31, so that the movement of the roller is fully controlled by the cam under the pull of the spring 27. The position of the roller 24 ort the arm 23 may be made adjustable.
Patent GB-479183-A (GB)
Title: Improvements in or relating to boilers
IPC: F24H1/32
Filed: 1937-06-09
Abstract: 479,183. Sectional boilers. FRANKE, K., and HERTEL, F. June 9, 1937, No. 15985. [Class 123 (ii)] In a boiler consisting of elements comprising flattened tubes 1 of lenticular cross-section forming four vertical walls of a furnace shaft and adjoining at their narrow sides, the water-conducting spaces of the elements are interconnected by hollow bosses at top and bottom to transverse pipes 2, 3 opening directly into collecting pipes 4, 5 extending across the furnace shaft and ash box from front to back of the boiler, and the elements forming one or both side walls have at the top gas passages 7 leading to flues 10 between them and additional rearward elements and opening into a discharge flues. The grate consists of parts 6, 6a integral with the collecting pipe 5 and transverse pipes 3 or separate and resting thereon. The walls of the elements, which are readily detachable, have semicircular corrugations. The front and rear elements of the shaft are connected by passages 3a to the transverse pipes, and openings for fuel and ash are formed in the front elements. The grate may consist of sections, each including a section of the lower collecting pipe and a transverse pipe.
Patent GB-962093-A (GB)
Title: Improvements in carburettors for internal combustion engines
Inventor: MENNESSON ANDER LOUIS
IPC: D03D47/00
Filed: 1963-04-23
Abstract: 962,093. Spray carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES S.I.B.E. April 23, 1963 [May 2, 1962], No. 16000/63. Heading F1B. In a carburetter having a metering needle 4 actuated by a choke valve 3 which is opened in accordance with the air flow, the fuel nozzle 5 opens into a by-pass 19 leading from the space 10 between the choke valve 3 and throttle valve 2 to a point downstream of the valve 3, the by-pass 19 having a restricted outlet 21 and an unrestricted inlet 20 whereby the pressure in the by-pass is substantially the same as that in the space 10. The choke valve 3 may be an eccentric spring loaded flap valve as shown, or a suction-actuated piston. In a modification the by-pass 19 has an annular inlet extending around the chamber 10.
Patent GB-1133004-A (GB)
Title: Improvements in the heat treatment of alloys
Inventor: FLETCHER HARRY
IPC: C21D8/00
Filed: 1966-04-12
Abstract: 1,133,004. Heat-treating alloys. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. June 27, 1967 [April 12, 1966; July 15, 1966], Nos. 16016/66 and 31955/66. Headings C7A and C7N. Alloys, particularly steels and aluminium bronzes, which undergo a shear transformation to a martensitic type of structure upon cooling after austenitizing or solution treatment, are subjected to a shock wave during such cooling, the latter being arrested for a predetermined period including the instant at which the shock is applied, and the cooling then being allowed to continue to complete the transformation. The shock wave is normally applied at a temperature above that at which transformation begins but may be applied within the temperature range over which transformation occurs. The shock wave must be of high energy and is preferably generated by the detonation of an explosive charge, which may be shaped to the configuration of the article treated, although alternatively the explosive may be used to project an impact member at the workpiece with high velocity. In a particular example, a 13% chromium steel was heated to 960‹C., rapidly cooled to 500‹C. by quenching into molten metal, and held at that temperature for 25 minutes before a shock wave was applied. The steel was finally cooled to ambient temperature.
Patent GB-1382886-A (GB)
Title: Walking presser device for sewing machines
IPC: D05B29/06
Filed: 1972-04-07
Abstract: 1382886 Presser mechanism SINGER CO 7 April 1972 [14 April 1971] 16053/72 Heading D1G A presser device comprises a first presser foot 60 and a work holding foot, or dog, 70 the latter being movable alternately into and out of work engagement and between extremes of movement along the feed direction defined by abutments 79, 80, means comprising springs 77, 78 returning the foot 70, when raised, to a position intermediate the extremes. The device thus functions irrespective of the direction of feed selected by the stitch length &c, adjuster (42 Fig. 1 not shown) for the lower feed dog mechanism. The first presser foot 60 is pivoted to a bracket 62 clamped to a presser bar 15, the bracket presenting shouldered screws 74 engaging two slots 73 (one shown). On a slide plate 72 carrying dog 70 on a spring arm 71. Bracket 62 also supports the pivots 91, 97 of interengaginig levers 90, 96 the latter being operated by the needle bar clamp 18 to cause roller 93 on the first lever to press dog 70 against the work W and to lift the presser bar 15 and foot 60 when the needle rises and the feed dog (31) moves with that work. A pin 76 on slide plate 72 projects into a slot 75 in bracket 62 between the springs 77, 78 accommodated therein to allow the dog 70 to move in the feeding direction as the work moves and to return the dog to its intermediate position when the foot rises from the work.
Patent GB-1426176-A (GB)
Title: Road vehicle rear window heater circuits
IPC: H05B3/84
Filed: 1972-04-07
Abstract: 1426176 Road vehicle rear window heating LUCAS ELECTRICAL CO Ltd 15 Feb 1973 [7 April 1972] 16055/72 Heading H2H A road vehicle rear window heating system comprises capacitor means, the discharge of which determines the period during which the window heater is energized. When an ignition switch 13 is closed a rear window heater 33 is energized by closure of contacts 32 when a relay coil 29 is energized, a lamp 34 indicating energization of the heater. A Schmitt trigger circuit is normally such that transistor 19 is off and transistor 23 on, therefore transistor 28 is off and the relay coil 29 is de-energized. Momentary closure of a manually operable switch 16 causes a capacitor 17 to become charged thereby changing the states of the transistors 19, 23, 28. Relay coil 29 is now energized to close contacts 32 to energize the window heater 33. The capacitor now begins to discharge by way of variable resistor 18, resistor 26 and the baseemitter junction of transistor 19 and when the capacitor is discharged to a predetermined level in, say 5 minutes, the transistors 19, 23, 28 revert to the normal states, the relay coil 29, and hence the window heater 33, are deenergized. A diode 14 is provided for protection of the transistors against reverse polarity transients.
Patent GB-869720-A (GB)
Title: Improvements in and relating to regulators more particularly temperature regulators
Inventor: PETERMANN KARL
IPC: G05D23/19
Filed: 1959-05-11
Abstract: 869,720. Control devices utilizing elementary particles. INSTITUT FUR WARMETECHNIK UND AUTOMATISIERING DER SILIKALHUTTENINDUSTRIE (W.T.I.). May 11, 1959, No. 16124/59. Class 40(3) The pointer 4 of an indicating and measuring instrument carries a radio-active isotope, e.g. cobalt 60, which produces a control signal, related to its distance from scintillation counters 2 (Fig. 1) or to its distance from cadmium sulphide coatings 6 which co-operate with photo-conductive devices 7 (Fig. 2). The instrument may indicate temperature values and the control signal, after amplification at 5, may control temperature regulating means.
Patent GB-1007626-A (GB)
Title: Process for the production of 1,3,5-trimethyl-1,1,3,5,5-pentaphenyl-trisiloxane
Inventor: SLIWINSKI SIEGFRIED
IPC: C07F7/08
Filed: 1964-04-20
Abstract: 1,3,5 - trimethyl - 1,1,3,5,5 - pentaphenyl-trisiloxane is prepared by reacting methyldiphenylsilane in the presence of methanol, with sodium hydroxide in dilute toluene solution to give sodium methyldiphenyl silanolate, which, after the removal of water and methanol by azeotropic distillation, is then reacted with methyl-phenyl dichlorosilane.  Specification 808,613 also is referred to.
Patent GB-384667-A (GB)
Title: Improvements in or relating to a method of and apparatus for partially vaporizing and
IPC: B05B9/00
Filed: 1931-06-04
Abstract: 384,667. Cleaning masonry. HOMESTEAD VALVE MANUFACTURING CO., Coraopolis, Pennsylvania, U.S.A.-(Assignees of Ofeldt, F. W. ; 532, Locust Street, McKeesport, Pennsylvania, U.S.A.) June 4, 1931, No. 16365. Convention date, June 14, 1930. [Classes 60 and 138 (i).] Sand blast.-A jet or spray of mixed liquid and vapour is produced by supplying liquid under pressure to a heating coil, heating it to a temperature below the boiling-point at such pressure but above the boiling-point at a lower pressure, and releasing the pressure at the outlet of the coil to cause a sudden change of the liquid phase in part to the vapour phase whereby a mixture of liquid and vapour is ejected. Preferably a portable apparatus is employed which is furnished with liquid and fuel pumps so proportioned as to give the required temperature and controlled by a spring to give a predetermined pressure. As shown, a casing 2 supports a coil 3 to which liquid is supplied from a reservoir 9 through a pump 7 ; also a liquid fuel burner 4 disposed above a pilot burner 6 and supplied from a reservoir 12 through a pump 10 and preheating coil 5. The pumps 7, 10 are actuated through a lever 29 adapted to be raised by a piston 26 in a cylinder 25 supplied with steam from a superheating connection 16 from the coil 3 through a valve 20 controlled by the lever 29 which is urged downwardly by a spring 39. The coil 3 is connected through a valve 15 to a nozzle 14a fitted with a throttle valve 14b. In starting the lever 29 is operated manually until sufficient steam is generated to operate the piston 26, the pumps are then operated automatically until the pressure determined by the spring 39 is attained. A modification is described in which the pump lever is actuated by a cam roller driven by an electromotor; to ensure circulation of liquid during idling periods, the outlet end of the heating coil is connected to the liquid reservoir through a relief valve and the fuel pump is supplied through a needle valve controlled by a spring piston acted upon by the liquid supply, the fuel pump piston being connected to the lever through a lost-motion connection. The heating coil is made of gradually increasing cross-sectional area and is composed of single or multiple conduits. In a typical system, the pressure corresponds to a boiling temperature of 260‹ F. and the temperature is 250-255‹ F. The invention is applicable to agricultural spraying, disinfecting, deodorizing, cleaning and the application of a weatherproof mixture to masonry. The liquid may contain a solution or suspension of cleaning or spraying material. Sand blasting may be effected by introducing a sand stream into the jet.
Patent GB-612666-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C35/00
Filed: 1946-05-29
Abstract: 612,666. Flying boat hulls. PERCIVAL AIRCRAFT, Ltd., and BAGE, A. A. May 29, 1946, No. 16377. [Class 4] An aeroplane is convertible into a flying boat by a hull unit 10 which is detachably secured by bolts 16 to the underside of the fuselage 1. The hull is formed with a step 14 intermediate its ends, and its rear end 15 is shaped to provide a second step. Floats 12 are carried at the ends of aerofoil section sponsons 11, the leading edges of the latter being directly beneath the leading edges of the aeroplane wings 13. A water-tight seal may be provided between the hull and fuselage.
Patent GB-1210616-A (GB)
Title: Improvements relating to furnaces equipped for continual transport of charge material therethrough
IPC: F27B9/24
Filed: 1969-03-28
Abstract: 1,210,616. Conveying furnace charges. KOPPERS - WISTRA - OFENBAU G.m.b.H. 28 March, 1969 [9 April, 1968], No. 16386/69. Heading F4B. A continuous reheating furnace comprises a pair of two-part conveyer beams of circular section rolling on a flat support surface 4, part 2 of said beams being non-reciprocable and part 3 being reciprocable longitudinally. A workpiece 1 is initially supported on part 2, the beams being then rolled laterally until it is supported in part 3, whereupon this part is moved longitudinally in the direction of travel and finally the beams are rolled back into the initial position. In a modification (Figs. 2-4) the beam sections are disposed side-by-side and are water-cooled, the reciprocable section being of lipped channel section enclosing a plate supported by spaced webs from the fixed section, antifriction bearing rollers being disposed between said plate and said reciprocable beam section. The fixed beam section is formed with spaced arcuate formations resting on rollers to provide the necessary transverse oscillating movement of the two beam sections. In another modification (Fig. 5), the workcarrying reciprocable beam has a vertical longitudinal plate carrying rollers engaging rails at the bottom of a water-cooled U-shaped beam. This structure is again disposed side-byside with a non-reciprocable beam. A final modification (Fig. 6) comprises a water-cooled base of substantially rectangular configuration supporting an upper fixed beam and an upper reciprocable beam engaging one another by a tongue and groove joint of C-section.
Patent GB-458031-A (GB)
Title: Improvements in wireless receiving circuits
IPC: H03G3/22
Filed: 1935-06-06
Abstract: 458,031. Valve circuits for wireless reception. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland, and MEYER, L. W., 28, Sundorne Road, Charlton, London. June 6, 1935, No. 16476. [Class 40 (v)] The amount of retroaction in the circuit of a back-coupled amplifying valve or local oscillator is varied electrostatically in accordance with signal strength for automatic volume control. In one embodiment, the anode coil 20, Fig. 1, of the local oscillator 18 of a superheterodyne receiver is shunted by a valve 16 in series with a condenser 22, the impedance of the valve 16 being lowered as the signal strength increases by connecting its control grid to the junction of the resistances 12, 13 in the anode circuit of the leaky-grid second detector 10. In a second embodiment, Fig. 2, the anode current of a detector valve 23 is passed through a coil 29 and determines the position of the armature 30 carrying one of the electrodes 31 of a variable condenser 31, 32 shunting the reaction circuit 24, 25. Provision may be made for maintaining constant the critical reaction setting over the tuning range such as, for example, a compensating condenser operated by the tuning control. Specification 445,098 is referred to.
Patent GB-297488-A (GB)
Title: Improvements in or relating to folding hoods or tops for vehicles
IPC: B60J7/06
Filed: 1927-06-22
Abstract: 297,488. Pearson, D. A. June 22, 1927. Hoods.-In order to cause the fabric of the covering to fold correctly in folding the hood particularly of the type in which hoop sticks are arranged to run on horizontal runways short lengths of stiffening material are provided adjacent the edges of the cover between each pair of loop-sticks. As shown in Figs. 1 and 2, two lengths d of cane, rubber &c. are inserted in seams c of the cover a between each pair of hoop sticks b the inner ends of the lengths being separated as shown at e. In a modification as shown in Fig. 3, lengths of spring steel are hinged to the loop sticks at and to each other at k, a strip m of resilient material being provided to brush the hinge joint, when the hoop sticks are approached to one another. The material h of the cover is left free from the hoop sticks adjacent to the strips so that the strain of raising the hood is taken by the strip
Patent GB-529677-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C13/00
Filed: 1939-06-06
Abstract: 529,677. Controlling aircraft. TAMPIER, R. June 6, 1939, No. 16574. Convention date, June 29, 1938. [Class 4] A control surface for an aircraft comprises a part controlled through an irreversible screw mechanism and a part controlled through a reversible device the arrangement being such that the pilot is made aware of the forces acting on the surface controlled through the reversible device. As shown applied to elevators 3 with auxiliary elevators 18, operation is by pullrods 17 and bell-crank levers 15 to which are attached rods 34 and 13. The former operate reversible control transmitting means 19 which may be of the type described in Specification 499,503, and the latter irreversible controltransmitting means 5 which may be of the type described in Specification 496,875. In another embodiment the hinges are separate from the reversible or irreversible control-transmitting means, which are located in the tailplane. The amplitudes of movement of the surfaces 3 and 18 may be different, and may vary, for instance, according to the point of connection of the rods 13 on the levers 15. Each of the control surfaces 3 and 18 may comprise a plurality of movable surfaces, the amplitudes of movement of which may be equal or different. The displaceable surfaces 3 may be balanced. The application of the invention to rudders, ailerons and flaps is mentioned. According to the Specification as open to inspection under Sect. 91 the irreversibility may be obtained by an electric motor or by a valve in a hydraulic or pneumatic transmission. This subject-matter does not appear in the Specification as accepted.