baber/WOPTO huggingface dataset:
Patent GB-623469-A (GB)
Title: Machine for grooving gear shaving cutters with helical displacement of grooves
IPC: B23P15/34
Filed: 1947-04-23
Abstract: 623,469. Shaping gear shaving cutters. FELLOWS GEAR SHAPER CO. April 23, 1947, No. 10833. Convention date, May 28, 1946. [Classes 83 (ii) and 83 (iii)] In a machine for cutting grooves in the teeth of a gear-like work-piece comprising means for effecting relative rolling and cutting movements between the work-piece and a grooving tool so as to cut grooves in one face of a tooth of the work-piece, means are provided for effecting a relative displacement between the work-piece and the grooving tool axially of the work-piece after grooving of one tooth and prior to the grooving of the next tooth so that corresponding bounding edges of the grooves of the several teeth may be located in different planes perpendicular to the axis of the workpiece. In the form shown, helically-displaced grooves g are cut in the teeth t of a work-piece w, e.g. a gear shaving cutter, by means of a reciprocable tool C. The work-piece is mounted on a rotatable spindle 28 which is supported in a reciprocable carriage 31, the spindle 28 having coupled thereto a worm gear 48 which engages a worm 49 on a rotatable shaft 61, the worm gear 48 carrying a gear 64 which. engages a pinion 65 loose on a shaft 66, the latter carrying a pinion 68 in driving connection with a gear 70 splined to a screw element 71 which is engaged by a nut 72 fixed to the carriage 31. When the grooving operation has been completed on one tooth, a screw element 73 is turned to clutch the pinion 65 to the shaft 66, and a plunger 56 is disconnected from a dividing head 54 and rotated to index the work-piece and at the same time to impart axial movement to the work spindle 28. The latter has secured thereto a sleeve 81 provided with a projecting arm 63 which is movable lengthwise of the spindle 28 in a guide member 62 secured to the worm gear 48, the guide member 62 being angularly adjustable so that its guiding portion may be located either parallel to the spindle 28 or at an inclination thereto according as the work-piece is one having spur teeth or one having helical teeth. The grooving tool, the means for mounting and reciprocating it, and the means for reciprocating the carriage 31 are the same as described in Specification 613,262. Specification 611,542 also is referred to. The Specification as open to inspection under Sect. 91 states also that the operations of indexing and of coupling and uncoupling the clutch 67 may be performed automatically in association with automatic mechanism for effecting the grooving operation. This subject-matter does not appear in the Specification as accepted.
Patent GB-1269622-A (GB)
Title: Preparation of self-supporting films
Inventor: HALE WILLIAM HENRY
IPC: C08L1/28
Filed: 1968-03-06
Abstract: 1,269,622. Confetti. W. H. HALE. 2 April, 1969 [6 March, 1968], No. 10848/68. Heading A6H. [Also in Division C3] Water-soluble or water-dispersible confetti is prepared by blobbing a film-forming composition comprising a water-soluble or waterdispersible cellulose ether, a finely divided mineral filler or extender, water and a wetting agent onto a substrate and drying the so formed particulate film.
Patent GB-1467273-A (GB)
Title: Fluid powered telescopic leg
IPC: E21B19/086
Filed: 1974-03-25
Abstract: 1467273 Hydraulic actuators AUSTRALIAN IRON & STEEL PTY Ltd 25 March 1974 [2 April 1973] 10873/75 Divided out of 1467272 Heading F1D Two hydraulically-operated devices, such as an extendible leg 8, Fig. 1, and a chuck 63 for a drill are independently controlled by valves 24, Fig. 7 and 22, Fig. 4, respectively, supplied from a common inlet 9 through a pressure responsive valve 13 which throttles the flow to one valve to compensate for pressure changes in the flow to the other valve. The valve 22 is adjusted axially against a spring 58 by a handle 62 to regulate the flow to a motor 7 driving the chuck while the valve 24 is rotated through gearing 52, 53 by a hand lever 55 on which the handle 62 is pivoted, the valve 24 having a first position in which fluid is supplied to a passage 29 to extend the leg, a second position in which the leg is locked and the fluid supply is returned to tank and a third position in which fluid is supplied to a passage 30 to retract the leg. Excessive pressure in the supply to the leg is prevented by a pilot operated relief valve in a passage 23 leading from a chamber 19 to the valve 24. The relief valve may be designed to provide progressive relief. The chamber 19 contains a spring 15 for the pressure responsive valve 13 and communicates with the common inlet 9 through a throttle 17 which may be pre-set. The leg 8, Fig. 2 may have a first portion 69 extended by the application of fluid-pressure through the passage 29 to a piston 71. until a stop 74 engages a cap 68 when a second portion 77 is similarly extended by a piston 80 until a stop 83 engages a cap 76. Fluid from the spacers below the pistons is returned to a line 30 through apertures 91, 92 passages 87 and a tube 88. To retract the leg, the flow of fluid is reversed by the valve 24 to enter the leg through the tube 88.
Patent GB-128310-A (GB)
Title: Improvements in the Manufacture of Propellers and other Parts of Aircraft.
Inventor: WOOD WILLIAM HENRY
IPC: B64C11/20
Filed: 1917-07-30
Abstract: 128,310. Wood, W. H. July 30, 1917. Frameworks.-Propellers, spars or stanchions of aeroplanes, or other parts of aircraft, are constructed with metal frames filled in with or embedded in a plastic mass such as wood pulp or papier mÔchÚ mixed with a cement or binding material or materials known as " Doloment " or " Decolite," which set hard without being brittle. The application to aeroplane propellers is described. Transverse plates a - - f are connected by stays g - - n in the manner shown in Fig. 1, and the framework so formed is embedded in a plastic material o of the kind indicated, with or without a layer q, Fig. 4, of expanded metal. The hub is formed from side plates l having holes w for bolts and stayed strips u. The longitudinal stays for the blades generally pass through this hub, as shown. When the blades are to be hollow, between the transverse members and in the spaces surrounded by the stays are introduced hollow bodies r, Fig. 4, of thin sheet metal which form a backing against which the plastic material can rest.
Patent GB-527396-A (GB)
Title: Process for the manufacture of condensation products from trimethyl-hydroquinone andalkylene halides
IPC: C07D311/72
Filed: 1939-04-11
Abstract: 527,396. Vitamins. HOFFMAN-LA ROCHE & CO., AKT.-GES., F. April 11, 1939, No. 10973. Convention date, April 12, 1938. Samples furnished. [Class 2 (iii)] Compounds corresponding to the general formulae are prepared by condensing trimethylhydroquinone with alkylene halides, other than phytyl halides, of the general formula X CH 2 - CH =CR<SP>1</SP>R<SP>11</SP>, in which X stands for halogen, and R<SP>1</SP> and R<SP>11</SP> for hydrogen or alkyl or alkyline groups in an indifferent solvent in the presence of acid condensing agents. If R<SP>1</SP> and R<SP>11</SP> represent hydrogen, a compound of formula I is obtained. If R<SP>1</SP> and R<SP>11</SP> represent alkyl or alkylene groups, compounds of formula II are obtained. Zinc chloride or aluminium chloride may be used as condensing agents. The products are useful medicinally. In the examples (1) trimethyl-hydroquinone condensed with geramyl bromide in the presence of anhydrous zinc chloride yields a compound of the formula It is purified by transformation into its allophanate ; (2) trimethyl-hydroquinone is condensed with alkyl bromide in the presence of anhydrous zinc chloride yielding 2.4.6.7.- tetramethyl-5-oxy-cumarane of the formula The samples furnished under Sect. 2 (5) of the Acts comprise (1) the allophanate of the compound from trimethylhydroquinone and geramyl bromide, obtained according to example 1 , (2) 2.4.6.7-tetramethyl-5-oxy-cumarane obtained in accordance with example (2) ; (3) 2.5.7.8-tetramethyl-6-oxy-chromane prepared by condensing crotyl bromide with trimethylhydroquinone.
Patent GB-830773-A (GB)
Title: Improvements in or relating to electric fuzes
IPC: F42C19/12
Filed: 1958-04-08
Abstract: 830,773. Electric fuzes. WASAGCHEMIE A. G. April 8, 1958 [April 4, 1957], No. 11107/58. Class 9(1) An electric fuze for igniting explosives comprises a cylindrical ceramic insulator 1 having a tapered axial bore 8 housing a tubular electrode 10 and surrounded by a cylindrical electrode 14 having inturned flanges 15, 17 at each end. A protuberance 1b which is preferably conical extends from one end face of the insulator and is covered with a metal layer 5 which extends over the annular ridge 6 and part way along the bore 8 to terminate at a line 7. The layer 5 may be thicker on the ridge 6 and within the bore than on the conical surface. One or more pointed contacts 16 extend from the flange 15, Fig. 2, over the layer 5. Preferably the contacts 16 are shaped as isosceles triangles joined by a rectangular portion to the flange 15 to facilitate bending. The electrode 10 has a taper corresponding to that of the bore 8, the taper of the bore being greater between the ridge 6 and a line 11 and after the section 11-12, the bore becomes cylindrical. A palladium-silver alloy may be used for the layer and the electrode 10 may be of silver. To prevent displacement of the electrode 10, a cylindrical locking sleeve may be secured to its exposed surface, e.g. by soldering or glue. Otherwise the electrode 10 may be secured to the end face 1c of the insulator by glue e.g. synthetic resin or by a tensioning ring. Specification 752,724 is referred to.
Patent GB-241471-A (GB)
Title: Improvements in and relating to furnaces
IPC: F23M20/00
Filed: 1925-04-29
Abstract: 241,471. Brown Bayley's Steel Works, Ltd., Bell, F. G., and Harrod, W. April 29, 1925. Regenerators; air s u p p l y , moistening. - In furnaces having a regenerator extending along a return passage for the waste gases, a distributor is arranged exterior to the setting to lead the preheated air to points below and above the fire. the preheated primary air being attemperated by a water spray. As shown applied to a reheating furnace the hearth 4 is covered by a roof 9 upon which rest transverse rows of tubular blocks 11 supporting tiles 10 which form a second airtight roof enclosing the regenerator. The gases after passing the hearth pass through outlets 5 and a. passage 6 to the space 7 above the regenerator whence they flow downwards through passages 8 to the flue, while air is admitted at 12 and passes to the distributor 13, being spread evenly in the regenerator by the tubular blocks 11. Two branches 14, 17 extend from the distributor 13 to the ashpit 1 and tuyeres 16 above the fire respectively, the supply to the ashpit being attemperated by a water spray at 20. The tuyeres 16 are of convergent-divergent formation and are arranged in staggered relationship, and valves 17, 18 regulate the primary and secondary air supplies. Extending down to the front portions of the fire-bars 2 is a, screen 19 causing the primary air to flow beneath the fire-bars. The regenerator may be divided into two superposed passages giving a double path for the air. The tiles 10 may be formed with transverse corrugations upon their under surfaces.
Patent GB-414623-A (GB)
Title: Improvements in radio tube shields
IPC: H01J5/08
Filed: 1934-04-13
Abstract: 414,623. Wireless receiving - - apparatus. GOAT RADIO TUBE PARTS, Inc., 314, Dean Street, Brooklyn, U.S.A. April 13, 1934, No. 11243. Convention date, April 14, 1933. [Class 40 (v).] A removable screening case for a valve has an inner contour conforming substantially to the outer contour of the valve. As shown in Fig. 3 the case comprises separate halves held together by a spring ring 8. In a modification, Fig. 5, the halves are held together by a resilient member 9. The casing is grounded by a connection to the cathode pin or a special pin.
Patent GB-699515-A (GB)
Title: Improvements in or relating to offset printing presses
Inventor: KOELLNER WALTER
IPC: B41F31/00
Filed: 1950-05-06
Abstract: 699,515. Printing machines. HUNTER-PENROSE, Ltd. May 4, 1951 [May 6, 1950], No. 11292/50. Class 100(ii) Inking apparatass.- A distributer roller in an inking apparatus for an offset printing press is arranged for axial oscillation with respect to a fixed shaft 9 and comprises a hollow cylinder 8 having rotatable therewith a member 11 effecting a spline and slot connection with a driving element 14 freely rotatable on the shaft, the cylinder housing a guide element 17 engaging helical threads 19 on the shaft 9 to effect axial movement of the cylinder. The distributer roller engages the periphery of a transfer roller 5 which is connected to a driving sprocket 20 through a friction clutch 23 whereby owing to frictional engagement between the transfer and distributer rollers, the angular velocity of the transfer roller is varied to compensate for axial movement of the distributer roller. The rollers are driven from an electric motor 24 through chain and sprocket gearing and a ductor roller 2 is driven from the motor through a reduction gear 29. Specification 699,517 is referred to in the Provisional Specification.
Patent GB-935000-A (GB)
Title: Linear accelerators
IPC: H05H9/02
Filed: 1962-03-23
Abstract: 935,000. Linear particle accelerators. C.S.F.- COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 23, 1962 [March 24, 1961], No. 11293/62. Class 39 (1). A linear particle accelerator includes a waveguide having a geometrically periodic structure formed by transverse irises periodically distributed along the length of the waveguide, the irises having central coupling apertures between cavities between adjacent irises, and the size of the apertures varies in an undulating manner passing through a number of successive maxima and minima along the waveguide. This arrangement suppresses parasitic modes, such as the TM 210  mode, which would otherwise take energy from the normal mode causing pulse shortening or other distortion. Dimensions and spacings are given in an example.
Patent GB-275563-A (GB)
Title: Flotation processes
IPC: B03D1/012
Filed: 1927-04-29
Abstract: 275,563. Guggenheim, D., Guggenheim, M., Guggenheim, S. R., Guggenheim, S., Macgowan, J. K., and Smith, E. A. C., (trading as Guggenheim Bros), (Assignees of Fischer, A. H.). Aug. 3, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Xantho compounds.-Ethyl xanthic anhydride may be made by adding ethyl chloroformate to a mixture of potassium ethyl xanthate and ethyl alcohol and allowing to stand; on diluting with a large volume of cold water, the anhydride separates. Propyl and butyl xanthic anhydrides may be similarly prepared.
Patent GB-681905-A (GB)
Title: Solutions of thiosemicarbazones
IPC: A61K47/10
Filed: 1949-04-29
Abstract: Thiosemicarbazones are used therapeutically in solution in a glycol or glycol ether, with which may be admixed an acid amide or a limited amount of water.  Specified thiosemicarbazones are 4-acetylaminobenzal-, 4-aminobenzal- and its phosphoric acid derivative (see Specification 680,142, [Group IV (b)], 4-propionylaminobenzal-, 4-benzoylaminobenzal-, 4-anisal-, 4-alloxybenzal-, and anisal-4-aminobenzal-.  Specified solvents are ethylene and propylene glycols, and glycol and diglycol monomethyl ethers.  Specification 681,904 also is referred to.
Patent GB-610747-A (GB)
Title: Machines for measuring plain rings, screw ring gauges and like articles
IPC: G01B5/12
Filed: 1946-04-15
Abstract: 610,747. Gauging-apparatus. MOLLART ENGINEERING CO., Ltd., MOLLART, K. A., and HARRIS, S. E. April 15, 1946, No. 11551. [Class 106 (ii)] Apparatus for measuring plain or screwthread diameters comprises a base 1 on which a work table 2 and a fixed anvil 13 are mounted, a carriage 9 slidable on the base carrying a micrometer head 12 which co-operates with the anvil 13, a measuring point 20 (not shown) mounted on the carriage to engage the work as a result of operation of the micrometer head, and means on the work table to align the axis of the work with a particular fixed axis set perpendicularly to the direction of travel of the carriage. The table 2 is rotatably mounted about a vertical axis, and to enable the axis of the work placed thereon to coincide with this vertical axis, the table is carried by two cross slides adjustable by screws 7, 8. The work may be retained on the table by clips, or permanent or electro-magnets. The carriage 9 and base 1 are formed with oppositely arranged grooves in which are mounted steel balls. A support 11 on the carriage carries the micrometer head 12 which abuts the anvil 13 carried by a support fixed on the base 1. The carriage is cut away at 15 surrounding the supports for the table and micrometer. A support 16 on the carriage supports the tubular extension 17 of a light alloy housing 18 carrying a lever 19 housing a downwardly depending measuring stylus 20 (not shown) adapted to enter the bore, or engage the outside, of the work on the table 2. The lever 19 is fulcrummed to the housing at 21, and its opposite end 22 engages a fixed cam 23. The housing 18, together with the lever 19 can be angularly adjusted in the support 16, and the fixed cam 23 compensates the angular movement of the stylus 20 over a small movement. The housing is counterbalanced at 24. The compensating cam 23 is carried by a spindle 25 terminating in a fiducial head 26 of known construction which ensures that the stylus 20 engages the work being measured with a predetermined force. Operation of the micrometer 12 contacting the fixed anvil 13 moves the carriage 9 relatively to the base 1 and the table 2, and contact of the stylus with the work is indicated by the pointer 27 in the head 26. The single measuring stylus 20 is suitable for measuring internal diameters of small dimensions, and the compensating cam 23 enables measurements at different depths (or heights) to be made. For screwthread measurements the stylus has a ballpoint. In a modification, the work table 2 can be adjusted vertically, and the measuring stylus merely mounted for sliding movement in the direction of the axis of the spindle 25.
Patent GB-234270-A (GB)
Title: Improvements in electrical wave-filters
IPC: H03H7/075
Filed: 1924-05-12
Abstract: 234,270. Western Electric Co., Ltd., (Western Electric Co., Inc.). May 12, 1924. Wave filters.-The invention provides a wave filter which mav be inserted in a transmission line without altering the impedance. Such a filter is also adapted for use in phantom and side circuits. Fig. 3 shows a line with high-pass and low-pass filters in parallel, for the purpose for example of inserting a repeater in the high-pass branch. The filters are of the recurrent section type and are complementary, and each acts approximately as a reactance-annulling shunt for the other if the terminal elements are modified as indicated. In order to simulate the line impedance more accurately at low frequencies, a series resistance of suitable value is introduced in each section of the low-pass filter. Fig. 4 shows side circuits l, P, each with high-pass and lowpass branches, with modifications for guarding against reflection effects in the phantom circuits. A repeater RP in each high-pass branch, and on each side of it is a high-pass filter with modified terminal elements. The series elements are inserted in both sides of the line, and :ha series inductances in the low-pass filter are wound on the same core. The junction points 1, 2 of the lowpass filter mav be cpened for testing purposes. The added series resistances of the low-pass filters increase the resistance of each side of the phantom circuit, and this is corrected for by a shunt resistance R4 connected up as indicated, the value of which may be calculated.
Patent GB-316163-A (GB)
Title: Improvements in or relating to superheater elements
IPC: F22G7/02
Filed: 1928-04-20
Abstract: 316,163. Tschusoff, S. April 20, 1928. Smoke-tube superheaters.-An element consists of two double tubes 3, 6 connected at their ends to inlet and outlet pipes 1, 9 respectively, and connected at their outer ends to the. legs of a looped tube 5 placed between the double tubes and having a cross-sectional area larger than that of the straight parts of the double tubes. The tubes may be of elliptical cross-section for the greater portion of their length, and may be arranged with the longer axes of the cross sections vertically, or radially or concentrically with respect to the smoke-tube in which the element is inserted.
Patent GB-370665-A (GB)
Title: Improvements in rotary apparatus for sedimentation tanks
IPC: B01D21/00
Filed: 1931-04-20
Abstract: 370,665. Gravityseparation apparatus. HARTLEY, J. W., Drysdale House, Stone, Staffordshire, and HARTLEY, E., 3, Dartmouth Avenue, Westlands, Newcastle. April 20, 1931, No. 11691. [Class 111.] In apparatus for removing sediment from a settling tank having scrapers or sweepers carried by a central shaft or other rotary support driven by a tractor running around the tank, the tractor drives the support by means of an arm separate from the scraper and pivotally connected to the support. As shown in Fig. 1, a tractor 15 driven by an electric motor 23<1> travels on the outer wall of the effluent channel 3 of the tank 1 and by means of an arm 19 rotates a central shaft 9 to which arms 12 carrying scrapers 14 are attached. In order to avoid tilting stresses the arm 19 is pivoted on the shaft 9 or to a sleeve keyed on the shaft. Liquid is supplied to the tank through a pipe 29 and a central distributing chamber 30 having a deflector plate 31 at its lower end. A girder or bridge 6 spans the upper end of the tank and has bearings for the shaft 9. Current is supplied to the motor 231 by cables 26, 27 on the arm 19 and bridge 6 respectively, a ring and brush contact being arranged on the shaft 9. The wheels of the tractor may be provided with rubber tyres. Fig. 6 shows an arrangement in which the pipe 29 is carried by the bridge 6 and a floating scum collector 34 is drawn round the tank by chains 36 connected to uprights 35 on the scraper arms 12. The scum collector may consist of a light plate 37<1> of wood or metal, supported by braced planks, Fig. 8, or a sealed tube, Fig. 9. It is arranged at such an angle that the scum is collected towards the periphery where it can be removed periodically through a suitable outlet. A further modification is described in which the tractor travels on the inner wall of the channel 3, the bridge 6 being supported at a higher level on the outer wall and the chamber 30 supported on the shaft 9. With this arrangement the scum collector 34 is drawn round by chains attached to the arm 19.