baber/WOPTO huggingface dataset:
Patent GB-572705-A (GB)
Title: Improvements in incinerators for the destruction of mails, documents and the like
IPC: F23G7/00
Filed: 1941-07-14
Abstract: 572,705. Incinerators. IMBER, J., and IMBER RESEARCH, Ltd. July 14, 1941, No. 8893. [Class 126] Apparatus for destroying mails, documents, etc., in an aircraft or ship, to prevent them from falling into enemy hands, comprises a receptacle 1 containing open-ended cylinders 2 in which the mails, etc., are placed and retained by cross wires 3. Among the mails, etc., are disposed combustible materials preferably in the form of paper strips to which an oxygen evolving substance such as potassium nitrate is applied by means of an adhesive. Ignition is effected by a perforated tube 4 arranged at one end of the receptacle and containing a filling of inflammable material ignited by a percussion cap and striker 5 actuated by a wire or cord 6. The other end of the receptacle has a removable cover 9 lined with an asbestos disc 11 and carrying one end of a fuse 20 which extends partly in the form of a coil 14 arranged in a housing 12 to a cartridge 17 disposed in a housing 13 on the cover. When the combustion of the mails &c. spreads to the fuse the explosive charge 18 of the cartridge is subsequently ignited and a charge of small shot is fired through the asbestos disc 11 into the receptacle to spatter the charred fragments. The percussion device may be of the kind described in Specification 551,208, [Growp XXI].
Patent GB-566803-A (GB)
Title: Improvements in distributing machines for manure or other material
IPC: A01C15/10
Filed: 1943-06-04
Abstract: 566,803. Adjustable cranks. BAMFORD, C. J., and BAMFORD, H. V. June 4, 1943, Nos.8965/43 and 1967/44. [Class 80 (iii)] [Also in Group I] Manure distributers of the type in which reciprocating grids are mounted in the base of a hopper, such grids being driven through cranks and connecting rods usually from the supporting wheels, are provided with means affording a fine adjustment of the crankmechanism. In one form a crank 11 mounted on the driving shaft 13 has pivoted to it an auxiliary crank 20 to which the grid-reciprocating connecting-rod 28 is pivoted, and the auxiliary crank is adjusted relatively to the crank 11 by worm and wheel members. The distance between the point of engagement of the worm and wheel and the pivot 19 of the auxiliary crank approximates to or is greater than that between the pivot 19 and the pivot 27 of the connecting rod 28. A scale and pointer may be provided on the two cranks, and the position of adjustment maintained by a bolt and slot engagement 25, 26. In a modification adjustment may be effected by a threaded bolt traversing openings in the two cranks. Joint adjustment of parts of such cranks at opposite ends of the main driving shaft is effected by making the latter shaft hollow to enclose a rod on which, at each end, a third crank is mounted. This crank is also pivoted to the auxiliary cranks, and acted on by the screw and nut or other adjusting means. Specification 467,174 is referred to.
Patent GB-860118-A (GB)
Title: Method and arrangement for detaching material by spark erosion
IPC: B23H1/02
Filed: 1957-03-19
Abstract: 860,118. Cutting by spark erosion. AGIE AKTIENGESELLSCHAFT FUR INDUSTRIELLE ELEKTRONIK. March 19, 1957 [March 19, 1956], No. 9022/57. Class 83 (4). In the removal of metal by spark erosion using an alternating current supply at least a part of the wave portions of one polarity are suppressed, the amount of suppression being increased in dependence upon the position of the electrode to thereby continuously widen the spark gap and thus compensate for burning-off of the electrode. The spark emission apparatus has switch means 5 for reversing the polarity of the spark gap 2 and current is supplied to the gap, which may be in a liquid dielectric, from a generator having variable voltage and frequency through a change-over switch 3. The polarity reversing switch 5 is bridged by a variable resistance 6 and half-wave rectifier 4 which suppresses at least part of one polarity. The rectifier may be a dry-plate type or a presaturated impedance coil may be used. The resistance 6 varies the amount of suppression and may be adjusted automatically with the advance of the electrode into the workpiece. An electrode 7, Fig. 2, may be used to bore a stepped hole in a blank 8 by using a positivelyconnected electrode for forming the smaller portion and a negatively-connected electrode for forming the larger portion. Another embodiment is described for forming a bore with opposed ribs, Figs. 3a, 3b (not shown). Reference has been directed by the Comptroller to Specification 773,782.
Patent GB-582018-A (GB)
Title: Improvements relating to thermionic valve circuits
IPC: G06G7/14
Filed: 1944-05-12
Abstract: 582,018. Thermionic valve circuits. COSSOR, Ltd., A. C., and JOFEH, L. May 12, 1944, No. 9054. [Class 40 (v)] [Also in Group XIX] In a thermionic valve circuit for obtaining a voltage relative to a fixed potential, equal to the voltage between two points each of varying potential, one of the points is connected to the input of a phase reversing amplifier and the other to the output of the amplifier via a resistance tapped to produce an output voltage equivalent to an amplifier gain of approximately unity. The figure shows valve amplifiers 10, 11 with cathode follower 'outputs, whose difference it is desired to obtain, connected to either side of the resistance 20, one side of which is connected to the grid of valve 12 and the other to the anode of valve 12 through the resistance 23, 24. The output is tapped off resistance 24. To set up, resistance 20 is short circuited and the grid of valve 11 earthed. An alternating supply is connected to the grid of valve 10 and the tapping on resistor 24 adjusted for minimum output. The gain of the amplifier is then approximately unity and with the short circuit removed from resistance 20, the output 25 will be proportional to the voltage across resistance 20, when input voltages are applied at terminals 15 and 16. The method is applied in Fig. 2 (not shown) to eliminate supply ripple from the output of an amplifier. The anode load of the amplifier valves takes the place of the resistance 20, one end being coupled by a condenser to the grid and the other through a tapped resistance to the anode of a second valve, the tapping again being arranged for approximately unity gain of the second valve. The time constant of the coupling is increased by the use of a negative feed-back resistor in the cathode of the second valve, so as to improve the low frequency response.
Patent GB-223529-A (GB)
Title: A process for the manufacture of metallized waterproof fabrics
IPC: D06Q1/04
Filed: 1924-04-11
Abstract: 223,529. Ioco Rubber & Waterproofing Co., Ltd., (Assignees of Grinnell, M. W.). Oct. 20, 1923, [Convention date]. Coating with adhesive and powdered materials. -Textile fabric, paper, &c. are coated with a waterproofing substance which becomes adhesive when heated, and dusted with a metallic powder while the coating is tacky, and varnished. Suitable manufactured material such as American cloth may be thus heated, dusted and varnished.
Patent GB-1253446-A (GB)
Title: X-ray intensifying screen layers
Inventor: BAYOL RAYMOND MARIUS AUGUSTIN
IPC: G01T1/08
Filed: 1969-02-20
Abstract: 1,253,446. Radiographic films. EASTMAN KODAK CO. 20 Feb., 1969 [22 Feb., 1968], No. 9295/69. Heading H5R. An X-ray intensifying screen includes a layer of binder containing a dispersion of particles of an alloy comprising bismuth and lead. Preferably, the bismuth content of the alloy is at least 50% by weight, and the lead content at least 25% by weight; the particle size is less than 20 microns diameter; the amount of alloy particles in the layer is not less than 25 % by weight; and the amount of alloy per unit area is 0À1 to 10 grams per square decimeter. The alloy preferably should also contain tin and/or cadmium, and may contain tin and mercury. The binder may be unhardened gelatin, or a thermoplastic resin, gum, or gel, and the intensifier may be either self-supporting, and used in contact with a light-sensitive radiographic film-which contains 3À6 grams or more light-sensitive silver halide emulsion per square foot-or may be integral with the film. The screen may be prepared by mixing the molten alloy with aqueous gelatin solution, stirring while the mixture is cooled to disperse the alloy as small particles, and coating on a poly(ethylene terephthalate) film support, setting the gelatin by cooling, and drying. When the screen is integral with the film, the resolution is increased by the melting of the particles to form an alloy rich layer adjacent the film; the same effect may be obtained in the case of a separate intensifying screen, by coating the layer on a temporary support, and wet-transferring it to a permanent supporting sheet with its alloy-rich side outermost, so that the latter may be placed in contact with the radiographic film.
Patent GB-322977-A (GB)
Title: Improvements in and relating to the concentration of sulphurie acid
IPC: C01B17/88
Filed: 1929-03-22
Abstract: 322,977. B³sching, W. March 22, 1929. [Convention date]. Acids, concentrating and distilling. - Impure sulphuric acid is concentrated by heating in a closed cast-iron vessel provided with a stirrer d, the acid being introduced at the lower part of the vessel by a pipe a having apertures c. Air or an equivalent oxidizing agent is blown in through a tube e. The vapours escape by a passage f and the concentrated acid and precipitated sludge are withdrawn through an outlet g.
Patent GB-682704-A (GB)
Title: Supports for show cards and the like
IPC: G09F1/04
Filed: 1950-04-17
Abstract: 682,704. Hanging supports for show-cards &c. JONES & CO., Ltd., S.. and BOSSOM, F. P. April 17, 1951 [April 17, 1950], No. 9401/50. Classes 52(iii) and 52(iv) To permit vertical hanging of a showcard B or the like fixed to a strut A, despite relative disalignment of the strut and card, the hanging aperture 11 in the strut is extended laterally to allow a choice of position of the suspension C. The top edge of the aperture may be serrated-
Patent GB-554937-A (GB)
Title: Improvement in automatic flame desurfacing machine
IPC: B23K7/06
Filed: 1942-07-08
Abstract: 554,937. Cleaning metals. LINDE AIR PRODUCTS CO. July 8, 1942, No. 9449. Convention date, July 8, 1941. [Class 82 (ii)] [Also in Group XXII] In a method of or apparatus for simultaneously desurfacing all the sides of a ferrous metal work-piece such as a billet B, a number of desurfacing heads 20-23 are symmetrically arranged to enclose an area similar to the crosssection of the work-piece, each head being adjustable to and from a central point in a direction inclined at 45 degrees to the surface engaged by the head so as to vary the size and shape of the area enclosed by the heads. The entire machine M may either be arranged on a fixed foundation or be mounted on a motordriven carriage for movement into and out of the path of billets B. The machine includes two units, a unit E with heads 20, 21 and a unit F with heads 22 23. Each head includes a nozzle block carrying nozzles N and a nozzle-protecting shoe 26, the nozzles having oxygen and heating gas connections which feed a central oxygen jet and a ring of inclined preheating jets. The oxygen, preheating gas, and preferably also cooling water are supplied by lines 28. The heads may be similar to those described in Specification 546, 733. To adjust a head such as 21, it is secured to a plate 31 carried on two pairs of links 32 pivoted to a back plate 34, the plate 31 being movable in the directions of the arrow Fig. 1, i.e. at 45 degrees to the upper surface of the billet, by means of a fluid-pressure cylinder 35. By maintaining a predetermined pressure in the cylinder 35 the head is partially balanced and the shoe engaged with the billet with the required pressure. The other heads are similarly adjustable and the pressures in the cylinders 35 are arranged to urge each head against the work with the same pressure. If a smaller billet than that shown in Fig. 1 is to be treated each head is moved inwards so that its inside corner moves along a diagonal. The back plates 34 of the two units E, F, are independently adjustable horizontally by means of cylinders 43 connected at 44 to a main plate 40 the two units being urged towards each other with predetermined pressure during operation. By this adjustment the heads may be set for treating rectangular billets of various proportions.. The plate 40 can float universally in its own plane so that the machine accommodates itself to irregularities in the work, or to billets having centres at different heights above the runway. For this purpose the plate is connected by horizontal link plates 45 to a plate 46 which is itself carried by links 48, Fig. 2, pivoted to the side pillars 48'. Valves are provided to supply only those nozzles which are adjacent the work. Flame-discharging heads may be substituted for those described. If square billets only are to be treated, the links 32 may be pivoted directly on the plate 40.
Patent GB-290420-A (GB)
Title: Improvements in cutting tools for facing, countersinking and like operations
IPC: B23C3/05
Filed: 1927-04-06
Abstract: 290,420. Tanguay, A. G. April 6, 1927. Portable turning-apparatus; cutters.-A cutting-tool for facing, countersinking and like operations comprises a circular blank 26 having radial slits 27, which divide the cutter into a number of leaves which are twisted so that the radial edges lie in different planes and provide cutting edges 30 on each side of the disc. In a modification, Fig. 6, the cutter comprises elements 32 which are bent up from the plane of the disc portion 31 and are then twisted transversely so as to provide an internal cutting-edge 35 and an external cutting-edge 36 on opposite sides of each element. In another modification, each of the elements 32 overlaps adjacent elements. The contours of the cutting-edges may be varied according to the shape of surface required. For refacing a valve seating, a member 10 is threaded at its upper portion 11 to receive the operating-handle 12. The cutter is screwed against, a shoulder 16 of the locating- member which is screwed at 14 into the member 10 and is provided with a stem 15 fitting in the valve guide. For trueing up a valve, Fig. 2, the handle is removed, the cutter is screwed over the threads 11, and the valve 20 is rotated by a suitable tool.
Patent GB-1486566-A (GB)
Title: Clamping arrangements for electrical leads
IPC: H01R4/34
Filed: 1975-02-18
Abstract: 1486566 Clamping arrangements BURGESS MICRO SWITCH CO Ltd 18 Feb 1975 [1 March 1974] 9485/74 Heading H2E A clamping arangement for an electrical lead comprises a screw with a captive washer 10 residing in a recessed opening 14 having at least one side wall portion 20 sloping as shown, the screw being threadedly engaged with a clamping surface 12. Modifications provide a ledge 28 to tilt the washer when the screw is retracted which may be integral with the body 2 or provided separately (Fig. 4, not shown). Other embodiments allow the sloping wall portion 20 to extend to the clamping surface 12 (Fig. 4, not shown) and/or a square, non-rotatable washer and/or a spacing flange 32. The flange 32 may be replaced in function by a step on the side surface 26.
Patent GB-938092-A (GB)
Title: Improvements in or relating to apparatus for positioning a workpiece in a machine
Inventor: BASSO JOSEPH CHARLES
IPC: B24B41/06
Filed: 1962-03-12
Abstract: 938,092. Lathe and like centres. DE LAVAL STEAM TURBINE CO. March 12, 1962, No. 9497/62. Class 83 (3). An adjustable male or female centre assembly has the centre portion 24, Fig. 2 (female centre), seated at 26 for slight lateral movement on a support 10 adapted to be bolted and dowelled to the work. The lateral adjustment 58 is determined by the clearance between a spigot 22 on the centre and a bore 20 in the support. A number of segmental wedges 50 are spaced circumferentially, Fig. 1, between a tapered external rim 54 of the centre portion and a similarly tapered and opposite rim 38 on the support. The wedges are adjustable axially by screws 44 with collars 28.
Patent GB-578532-A (GB)
Title: Improvements in means for feeding machines for mixing concrete or other materials
IPC: B28C7/08
Filed: 1944-05-17
Abstract: 578,532. Vehicle fittings for loading. WINGET, Ltd., and DICKSON, G. May 17, 1944, No. 9508. [Class 78 (iv)] [Also in Group XXXIII A concrete mixing machine is provided with means by which a wheeled skip may be raised and inclined about its front end to discharge its contents into the mixer. In one construction two parallel arms 1, Fig. 1, are pivoted to the mixer 4 at 3 and adjustably supported from below by screw members 9, 10. The arms are raised when ropes 5, 6 secured to them are wound on drums 7, 8. A skip 12, Fig. 3, is removably mounted in a centering device 13 arranged upon a cradle 14 which has upturned ends 15 supported by road wheels 17. When the skip is in position on the cradle, the arms 1 can take between the parts 15 and the sides of the skip, so that upon actuation of the drums 7, 8 the upward movement of the arms raises the skip bodily from the cradle and the contents are discharged through the shoot 11 on the arms into the mixer. In a modification (not shown) rollers are mounted across the arms and co-operating stops are mounted on the adjacent ends of the skip and shoot. When the skip is engaged by the arms in their lowered position, the stops are separated, but, when the arms are raised, the skip runs towards the mixer over the rollers until the stops engage. The sudden stoppage of the skip facilitates the discharge of its contents. In another modification the skip 21, Fig. 5, is fitted with road wheels 22 and has forked members 24 attached to it which engage an abutment 25 on the mixer 26. The hoisting ropes 27 are attached to the skip. The forked members may be replaced by a transverse roller which is adapted to engage a curved recess in an abutment member on the mixer. In this modification the wheels of the skip may be arranged to run on curved and inclined runways attached to the mixer. In a further modification the skip 44, Fig. 8, is run on to a framework 39, 40 which is pivoted to the mixer and carries an abutment 46 for the end of the skip. In a still further modification the skip is secured to the hoisting ropes and is fitted on its underside with a cradle having forked ends which engage an abutment on the mixer. The skip can be fitted with one or more vertical removable division plates 54, Fig. 11, to vary its capacity. Specification 548,573 is referred to.
Patent GB-622794-A (GB)
Title: Improvements in or relating to chairs or stools
IPC: A47C7/42
Filed: 1947-04-10
Abstract: 622,794. Chair backs. TALBOYS MANUFACTURING CO., Ltd., and MAY, D. E. April 10, 1947, No. 9508. [Class 52 (ii)] A back rest which may be swung to an out of use position behind a chair comprises a U- shaped frame 3 having its ends bifurcated to straddle bracket plates 4 attached to a cross tube 2 of the chair. The bifurcated ends carry pivot pins 5 passing through L-shaped slots 6 in the brackets 4. The brackets are formed with abutments 7, 8, one abutment 8 holding the back in its upright position. To move the back rest to an out of use position it is moved forward till it engages the abutment 7 when further forward movement causes the pin 5 to move to the angle of the slot 6 when the back may be raised and swung downwardly over the abutment 8
Patent GB-526850-A (GB)
Title: Improvements in processes and devices for the preparation of wrapping elements
IPC: B65C1/02
Filed: 1939-03-27
Abstract: 526,850. Making wrappers. THORNTON, A. A. (Sapal Soc. Anon. des Plieuses Automatiques). March 27, 1939, No. 9512. [Class 94 (ii)] Wrapping elements 2 piled at 16 are removed therefrom by a suction tube 18 to a table 17. A punch 11 moves to take the elements 2 to a gumming device 19. The gummed elements are then taken by the punch and placed upon a web of wrapping material 6 moved intermittently over a table 5 by grippers. An abutment 10 ensures that a tab 3 on each element 2 stands upwardly at 2 inches in order that shears 8, 9 will not cut same in separating off the individual wrappers 1, 2.
Patent GB-716030-A (GB)
Title: Improvements in or relating to heat regenerators for coke or like ovens
IPC: C10B5/12
Filed: 1951-04-24
Abstract: 716,030. Regenerators for coke ovens &c. COMPAGNIE GENERALE DE CONSTRUCTION DE FOURS, and CASSAN, J. H. F. April 24, 1951 [April 28, 1950], No. 9515/51. Class 64(1) In heat regenerators for coke ovens or other furnaces having individual cells separated from each other and from the surrounding walls in order to prevent deformation, the cells are each surmounted by a conical or pyramidal cowl, those of adjacent cells, one for air and the other for gas, acting as a burner. The individual cells, Ra, Rg for air and gas respectively, are mounted over air and gas inlets A, G, and communicate with hair-pin flues P 1 , P 2  surrounding carbonization chambers C 2  or the like. The cells are constructed of hollow blocks 7, containing refractory plates 8 arranged in checker fashion and surmounted by cowls 5, the cells being covered with a refractory metal if desired. The spaces 4 between the cells and the walls 38 of the regenerator may be left empty or they may be filled with a compressible material such as refractory mineral wool, pulverant material such as pulverized brick, or clay. A block of four cells may be built up on a metal plate 12 having recesses to accommodate the cells over apertures 14 for the admission of gas and air. The plate is supported by screwed rods 16 from an overhead beam 17 which can be lifted by an eye bolt 18. A thin sheet metal plate 19 of refractory alloy is attached to the rods 16. Blocks 21 of compressible material which will be burnt when the oven is started, e.g. cork, wood fibre, or felt, are placed against and at right angles to the plate 19 around the cells; alternatively compressible refractory material such as cellular concrete or asbestos felt may be used. After lowering the block into position, refractory concrete framing the lower masonry of the oven is poured around the blocks.
Patent GB-785683-A (GB)
Title: Cyclopentanopolyhydrophenanthrene compounds
IPC: C07J75/00
Filed: 1953-09-16
Abstract: The invention comprises compounds having the formula: <FORM:0785683/IV (a)/1> in which the 3-position is occupied either by a bivalent group convertible to keto by acid hydrolysis, e.g. a cyclic acetal or by a pair of univalent groups together convertible to a single keto group by acid hydrolysis, e.g. a non-cyclic acetal and of the formula: <FORM:0785683/IV (a)/2> in which the 3-position is occupied by a univalent group which is convertible to keto by acid hydrolysis, e.g. an enol ether and their preparation from the corresponding 3-substituted-11-keto-etienoylpyruvic acid by reaction with iodine.  The reaction may be effected by bringing a buffered aqueous solution of the starting compound, e.g. with disodium phosphate, into intimate contact with iodine.  An example discloses the production of d and dl - 3 - ethylenedioxy - 11,20 - diketo - 21 - iodopregnene.  Specifications 763,208 and 785,684 are referred to.