baber/WOPTO huggingface dataset:
Patent GB-794642-A (GB)
Title: Improvements in or relating to processes for the production of pure germanium and silicon
IPC: C22B41/00
Filed: 1954-04-15
Abstract: Silicon is purified by being heated in an atmosphere, the temperature and composition of which are such that impurities in the silicon which are less noble than silicon are converted to their oxides while the silicon is not converted to its oxide. The treatment may be carried out by passing the gas through powdered silicon or in combination with a zone melting process which is performed in the required atmosphere.  The purification may be combined with a reduction of silica, the silica being treated, for example, at 1000 DEG  C. with hydrogen containing a small amount of water vapour as produced by passing dry hydrogen over water at about 0 DEG  C. Silicon is produced whereas the impurities remain as oxide.  Oxygen or carbon dioxide may also be used as the oxidizing constituent of the atmosphere.  Silicon may thus be purified to an extent beyond that required for producing desired properties, particularly electrical conductivity, whereafter impurities are added to produce the desired property. Specification 794,643, [Group II], is referred to.ALSO:Germanium is purified by being heated in an atmosphere, the temperature and composition of which are such that impurities in the germanium which are less noble than germanium are converted to their oxides while the germanium is not converted to its oxide. Treatment may be carried out by passing the gas through powdered germanium or in combination with a zone melting process which is performed in the required atmosphere.  In a particular example germanium is treated at 650 DEG C. with hydrogen containing water vapour which is obtained by passing dry hydrogen over water at about 0 DEG C.  Oxygen or carbon dioxide may also be used as the oxidizing constituent of the atmosphere.  The purification may be combined with a reduction of germanium oxide, the reducing atmosphere being such that the germanium is reduced while the impurity oxides are not reduced.  The process may form part of a multi-stage process in which germanium halide is freed from impurity halides by addition of a metal, the halide is distilled and converted to oxide, the oxide is reduced to germanium which is then further purified by the above process. Specification 794,643 also is referred to.
Patent GB-334576-A (GB)
Title: Improvements in sound recording
IPC: G03B31/00
Filed: 1929-06-04
Abstract: 334,576. Lissen, Ltd., and Oatley, C. W. June 4, 1929. Vacuum apparatus. - Sound is recorded by means of an electric discharge, impinging unaccompanied by light directly upon a moving sensitized surface contained within the evacuated chamber in which the discharge is generated. In the apparatus shown, an electronic discharge is produced between a tungsten filament 1 and an electrode 2 in an evacuated vessel 10, the electrode 2 being connected to a source 3 of E.M.F. The discharge is collimated by aligned slits in metal screens 4, 5, and after passing through an aperture 14 in the electrode 2 it falls on a moving sensitized film 13 which, as shown, is preferably wholly enclosed, together with spools 12, in an enlargement 11 of the discharge chamber. The driving motor, or the armature thereof (in the case where an induction motor is used), may also be located within the chamber. Alternatively, the film may pass through a mercury seal into and/or out of the evacuated chamber. Vacuum pumps 15, 16 are connected to the portions 11, 10 of the chamber respectively. Variations in the intensity or in the. path of the beam, which are recorded on the film, are produced by applying potential variations dependent upon the. sound to be recorded to terminals 9 connected to the filament 1 and to a grid 8 ; or such acousticallyvarying potentials may be applied to the circuit of the source 3, or may cause the discharge to be deflected bv varying an electric or magnetic field. In order to prevent light which may accompany the discharge from reaching the film, the aperture 14 is placed out of line with the openings in the screens 4, 5 and the electronic discharge is deflected from its rectilinear path, so as to pass through the aperture 14, by an electrostatic or electromagnetic field set up between plates 6 or by solenoids 7.
Patent GB-313004-A (GB)
Title: Work-holders for screwing and like machines
IPC: B23G7/00
Filed: 1928-02-06
Abstract: 313,004. Landis Machine Co., (Assignees of Mathias, S. W.). Nov. 28, 1927, [Convention date]. Divided on 301,371. Lathes ; screwing.-Work-holders for screwing &c. machines are described with particular reference to the machine for pointing and threading bolts described in Specification 301,371, which is provided with a work turret which carries three sets of spring-closed work-grippiig jaws and is rotated by a gear 79<1>, Figs. 4 and 5. meshing with a gear on a four slot Geneva wheel 84, operated by a roller on an arm 86<1> carried by a cam splined on the auxiliary shaft 85. A cam 86<2> controls the spring-controlled index bolt 91 through levers 89, 90 connected by gear segments. A second cam 86<3> acts through lever 93, rock shaft 94, lever 95, and plunger 96 to release the work jaws and maintain them open during ejection of the finished work and the supply of a fresh blank. The turret mechanism as a whole is adjusted towards and from the tool spindles on ways 83<1> formed on the framing. The jaws 99, Fig. 6, of the work-holder are interchangeably mounted on levers 73 pivoted on pins 74 parallel to the axes of the tool spindles and connected by toggles 77<1> operated by spring-controlled rods 77. The fixed abutments 78 for the springs also engage shoulders 77<4> on the rods to limit the degree of closing of the jaws. The spring pressure is adjustable at 76 and the ends 77 of the rods are engaged in turn by the plunger 96. The jaws may be such as to grip a bolt securely by its head or by its shank either close to the head or at a distance therefrom. In a modification, when a floating grip is required the jaws 99<1>, Fig. 11, do not quite grip the shank and the head is loosely engaged at 99<2> to prevent the bolt from turning, whilst stops 99<3> prevent the bolt from being pushed back.
Patent GB-529899-A (GB)
Title: Improvements in or relating to synchronous electric clocks
IPC: G04C15/00
Filed: 1939-06-10
Abstract: 529,899. Motors. LANFRANCONI, F. A., and BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd. June 10, 1939, No. 17076. [Class 35] Motors with unwound iron armatures, - A " flick-starter" for a clock motor of the type comprising a pivoted plate carrying a spring finger which can be brought into control with the rotor and is returned by a spring is arranged to be actuated either by a knob or a pull-cord. The plate 10 carrying the spring 14 is fixed to a spindle which can be turned by a detachable knob 20, and has two arms 16, 17 to either of which a cord can be attached. The movement of the plate 10 is limited by a stud 11 fixed to the frame of the motor and passing through an arcuate slot 12 in the plate.
Patent GB-1074402-A (GB)
Title: Improvements in and relating to the preparation of organoantimony compounds
IPC: C07F9/92
Filed: 1965-04-23
Abstract: Compounds of general formula R2SbZR1 in which R and R1, which may be inertly substituted, are alkyl, cycloalkyl, aryl or alkenyl; Z is -OOC- or -S-; and ZR1 contains at least 4 carbon atoms, are prepared by reacting together compounds having the general formula HZR1 and R2SbOOCR11 in which R11 is an alkyl radical containing (excluding inert substituents), less than 4 carbon atoms and fewer carbon atoms than R1.  The inert substituent groups may be nitro, halogen, ether, aryl or alkyl.  The process may be conducted in the presence of an inert liquid organic solvent such as a substituted or unsubstituted hydrocarbon. The solvent may have a boiling-point higher than that of the by-product HOOCR11 formed in the reaction or it may form a low-boiling azeotrope with the HOOCR11.  Specified solvents include cyclohexane, benzene, toluene, xylene and chlorobenzene. In order to complete the reaction the HOOCR11 formed may be removed by distillation by itself or as an azeotrope.  A list of compounds which may be prepared is included in the Specification.
Patent GB-560357-A (GB)
Title: Improvements relating to the inlet and exhaust passages in the cylinder heads of internal combustion engines
IPC: F02F1/42
Filed: 1942-12-05
Abstract: 560,357. Internal-combustion engine cylinder heads. OGILVIE, D. A. Dec. 5, 1942, No. 17340. [Class 7 (ii)] A cylinder head for an internal - combustion engine has one inlet and one exhaust valve in a semispherical combustion chamber 10 with central ignition plug at 12 and the inlet and exhaust passages 13, 16 respectively pass almost vertically from the top face 8 of the head to the combustion chamber, the inlet and exhaust ports 14, 17 being disposed at an angle of from 45-60 degrees or thereabouts to a central vertical plane aa. The head has lateral jointing faces 4 so that a multi-cylinder head may be built up by connecting together a number of sections by bolts passing through holes 5, 6. Bolt-holes 9 serve for clamping the head to the cylinder block and the inlet and exhaust connections are secured to the top face 8 by studs 21. The valves are guided at 15, 18. Cooling passages 19 communicate at 20 with cooling passages in the cylinder block.
Patent GB-890216-A (GB)
Title: Oil burner
IPC: F23C99/00
Filed: 1958-05-30
Abstract: 890,216. Liquid fuel burners. BRODLIN, W. May 30, 1958 [June 4, 1957], No. 17394/58. Class 75(1) An oil burner comprises an atomizing nozzle 3 and a convex metal plate 14 disposed above the nozzle, the central part of the plate being imperforate and the lateral portion perforated. The plate rests on a cross rod 17 having pinions 19 engaging racks 20 so that rotation of a knob 18 moves the plate vertically. The nozzle 3 extends through a perforated plate 8. The burner is mounted in a vertical boiler having an adjustable air flap 10. In another embodiment the nozzle extends horizontally through a side wall of the boiler and the convex metal plate is pivoted at its lower end to the boiler, its upper end being connected to a draw rod extending to the outside of the boiler. The convex plate may have a V-sectioned central portion.
Patent GB-436243-A (GB)
Title: Improvements in rubber manufacture
IPC: C08K5/42
Filed: 1934-04-06
Abstract: Rubber latex which has been stabilized by the addition of saturated or unsaturated aliphatic acid sulphuric esters containing not less than ten carbon atoms in the molecule, or their alkali or ammonium salts, is vulcanized by heating with vulcanizing ingredients. According to an example, to 166 parts of 60 per cent latex stabilized with 2,5 parts of a 15 per cent paste of cetyl sodium sulphate, are added 5 parts of zinc oxide, 2,5 parts of sulphur, and 1 part of sodium diethyldithiocarbamate, and the mix is heated for two hours at 90 DEG  C. to yield a smooth reversible vulcanized concentrate. Specifications 193,451 and 208,235, [both in Class 70], 395,705, and 411,478 are referred to.
Patent GB-560360-A (GB)
Title: Improvements in gimbals and mounting frames for instruments
IPC: G01C19/16
Filed: 1942-12-08
Abstract: 560,360. Gimbal frames. MILES AIRCRAFT, Ltd., (formerly Phillips & Powis Aircraft Ltd.), and DEACON, A. Dec. 8, 1942, No. 17472. [Class 113 (i)] A gimbal frame for gyroscopes or other instruments is built up from metal stampings 1 interconnected by spacers 3. The parts are preferably of light metal and may be anodised. The spacers are threaded at 4 to receive bearings, and are slit at 5 whereby the bearings may be clamped in position.
Patent GB-640019-A (GB)
Title: Improvements relating to portable lamps
IPC: F21V21/096
Filed: 1947-07-03
Abstract: 640,019. Supporting lamps. KRISTIANSEN, T. July 3, 1947, No. 17516. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 3, 1948.] [Class 75(iii)] A portable lamp is supported by a single magnetic surface of substantial area arranged approximately flush with the body of the lamp. The body 1 of an inspection lamp is formed with a recess 4 in which a square or circular magnet 5 guarded by a soft iron plate 6 is mounted so that the attractive surface of the magnet is flush with the lamp body. In a modification the magnet is secured to the wire cage 3 protecting the bulb 2. The Specification also describes a portable lamp having a permanent magnet fixed by adhesive tape within the hollow bottom of the lamp and two types of pocket lamps having magnets fitted in the casings so that a single attractive surface of each magnet is exposed. Rubber plates or rings may be fitted to the lamps to provide a friction grip.
Patent GB-696611-A (GB)
Title: A double twisting spindle with a compound spindle shaft
IPC: D01H7/86
Filed: 1951-07-24
Abstract: 696,611. Double-twist spindles. BARMER MASCHINENFABRIK AKT.-GES. July 24, 1951 [Aug. 19, 1950], No. 17517/51. Class- 120(ii) A textile double-twist spindle comprises. a shaft in two parts joined together by a sleeve wherein a thread-guiding ring is. loosely aranged inside the sleeve at the point at which the thread emerges from one of said parts, the arrangement being such that the thread can run with a single deflection to one of a number of slots in the sleeve. As shown the shaft consists of an upper part 1, a'lower part 2 and a sleeve 3 joining these two parts together. The thread 4 passes through a bore 5 in the part 1, through a thread guiding ring 6 disposed beneath the part 1 and then outwards through one of a number of slots 7 provided in the sleeve 3. The ring 6 may be made of hardened and chromed steel or of a ceramic material.
Patent GB-888170-A (GB)
Title: Sashless window structure
IPC: E06B3/44
Filed: 1960-05-18
Abstract: 888,170. Sashless sliding windows. MIGNEAULT, R., and MIGNEAULT, F. W. May 18, 1960 [March 28, 1960], No. 17534/60. Class 20(3) [Also in Group XXV] In a sashless sliding window the top panel 18 rests on shoulders 14 formed in a track 7 with the upper edge of the top panel engaging the head piece of the main frame and the peripheral portion of its outer face engaging a rear flanged edge portion 12 of the track 7 and the lower panel 20 slides in a channel formed on the track 7 and terminating at 15a below the top panel 18 so that in the absence of the bottom panel the track 7 is forwardly unobstructed to permit withdrawal of the top panel. The lower panel when closed overlaps the top panel and is resiliently urged against strips 13a and against the top panel 18 by a spring pressed roller 37. The lower panel 20 has on its lower edge a flanged member 22 with spring pressed bolts 26 engaging notches 33, 34 for locking and holding the panel 20 in adjusted position.
Patent GB-1538725-A (GB)
Title: Production of containers
IPC: B31B17/00
Filed: 1976-09-02
Abstract: A machine for transforming heat shrinkable thermoplastic material into sealed and liquid-filled containers in which the material in strip form is cut off to a suitable length then heated and transformed into a tube-shaped shell blank on a mandrel with an overlapped longitudinal heat-sealed seam. The shell is then displaced in relation to the mandrel so that its bottom end extends beyond the end of the mandrel, a base blank cut from another strip is then inserted into the end of the shell to rest against the mandrel end, and the shell and inserted base are then heated causing the shell to shrink accurately to the shape of the mandrel and the bottom edge zone of the heated shell to be folded in against the end of the mandrel and the edge of the base. The joined edge zones of the shell and base are then pressed together and heat sealed. The container is then passed to a filling machine where it is filled and closed by a lid.
Patent GB-530272-A (GB)
Title: Improvements in or relating to steel roof structures and the like
IPC: E04D3/30
Filed: 1939-06-16
Abstract: 530,272. Metal roofs. FURNESS SHIPBUILDING CO., Ltd., and BOARDMAN, R. June 16, 1939, No. 17691. [Class 20 (iv)] Steel roofs, e.g. for air-raid protection purposes, are ,formed of heavy plating with one edge flanged and disposed transversely to the main frame members, the other edge resting on the adjacent plate, so that the usual auxiliary frame members disposed across the main frame members can be dispensed with. The plates 11 have one edge flanged at 12, and are retained on the main frame members 10 by angle-stops 13 secured to these members. One end of each plate running from the flanged edge is joggled at 15 to engage under the end of the adjoining plate in the same strake, and where four plates overlap at the junctions, parts of the lower plates are cut away to allow the upper plates to seat fairly. According to the Provisional Specification both edges of the plates may be flanged and abut against each other for adjacent plates.
Patent GB-342636-A (GB)
Title: Improvements in or relating to die stamping
IPC: B21D22/02
Filed: 1930-06-07
Abstract: 342,636. Stamping. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia, U.S.A.- (Assignees of Meinel, W. J. ; 2500, Hunting Park Avenue, Philadelphia, U.S.A.)-June 7, 1930, No. 17740. Convention date, June 27, 1929. [Classes 83 (ii) and 83 (iv).] Making road vehicles.-Stampings, such as the parts 12 of a sheet metal automobile body, are formed by uniting e.g. by electrically welding two or more blanks 10, 11 at their edges 13, stamping between dies 15, 16 and then shearing off the edges, Fig. 5, to leave the separate parts 12.
Patent GB-214881-A (GB)
Title: Improvements in heat exchangers and more particularly in steam superheaters
IPC: F22G1/16
Filed: 1923-07-09
Abstract: 214,881. Herbelot, A. d', and Maiche, C. July 9,1923. Fire-tubes with superheating jackets; superheating-chambers heated by combustion gases.- A separately-fired steam superheater comprises concentric tubes 1, 2 having a large number of closely packed small tubes 3 in the annulus. Steam enters at 4 and passes through and around the small tubes 3 in each element and passes out at 5. Combustion products from a furnace 6 traverse the inner tubes 1 and flow around the outer tubes 2 before passing to the flue 7.
Patent GB-1099682-A (GB)
Title: Improvements in or relating to sacrificial anodes
Inventor: HIGGINS WILLIAM FREDERICK
IPC: C23F13/02
Filed: 1964-04-29
Abstract: <PICT:1099682/C6-C7/1> An anode device for protecting a metal structure against corrosion comprises a block of sacrificial anode metal (e.g. of Mg, Zn, Al or their various alloys) and a metal core that is embedded in the anode metal and projects from the anode metal and is so arranged that in any position of the anode device, when placed on a surface of the structure to be protected, it rests on at least three spikes, edges, corners or pointed ends on the core.  The end of each spike may be provided with a number of subsidiary spikes so aligned that the anode, in whichever position it is placed, is supported on vertical spikes.  An anode device for a domestic cold water galvanized cistern comprises a core of Fe rods 10 to 13 connected at a common joint and Mg alloy 15 cast around the joint. An anode device for marine tanker compartments comprises an Fe rod core (16) Fig.3 (not shown) with the ends in approximately spherical formation and A1 base alloy (17) cast around the rods leaving their ends exposed.  The device may have one or more ropes or chains to limit its extent of movement.
Patent GB-355406-A (GB)
Title: Improvements relating to means for locking closures on boxes or the like
IPC: B65D55/02
Filed: 1930-06-10
Abstract: 355,406. Boxes. JENKINS, R., Ruskin, Rodger Drive, Rutherglen, Lanarkshire. June 10, 1930, No. 17784. [Class 18.] A hole 15 in the lid of a box through which a spring-pressed sliding plate 6 is operated by a finger or suitable tool, is covered with a label which has to be broken before the sliding plate can be operated.
Patent GB-613169-A (GB)
Title: Improvements in clamping or securing devices
IPC: B25B1/08
Filed: 1946-06-13
Abstract: 613,169. Vices; clamps. SUTER, G. June 13, 1946, No. 17815. Convention date, July 6, 1945. [Class 61 (ii)] A clamping device or vice comprises three jaws; A the fixed jaw in which a movable jaw B slides and is moved by means of a screwed rod 19, and a separate fixed jaw C. The jaws are hollow as at 11, both horizontally and vertically and the gripping surfaces 39 may be attached as shown, or at right angles thereto. The body portion of the fixed jaw A is formed of metal of H-profile of which two of the flanges are connected by means of a plate to form a box-like.passage which accommodates the slide of the jaw B. The other two flanges of the H-profile body are used for clamping the body on to a table or bench &c.
Patent GB-573739-A (GB)
Title: Improvements in and relating to perambulators
IPC: B62B9/12
Filed: 1943-10-28
Abstract: 573,739. Perambulator bodies. GRUNDY, G. F. Oct. 28, 1943, No. 17838. [Class 108 (i)] A perambulator body 1 formed of pressed metal has a wooden framework 5, which is fastened by screws passing through holes in the top edges of the body and has suspended from it a lining 7 for the inside of the body. The lining may carry from its lower edges a base 8 to receive a mattress or removable cot. The framework 5 may have padding 6.
Patent GB-706756-A (GB)
Title: New or improved apparatus for removing tyres from wheels
Inventor: NEWMAN LESLIE CYRIL
IPC: B60C25/132
Filed: 1952-07-15
Abstract: 706,756. Tyre removing apparatus. BROCKHOUSE & CO., Ltd., J. Jan. 12, 1953 [July 15, 1952], No. 17872/52. Class 144(1) In a tyre removing machine having a plurality of angularly spaced tyre-engaging pushers 24 arranged for relative movement with respect to a wheel support 12, each pusher 24 has a guide finger 39 to engage the peripheral edge of the wheel rim flange 35 before the pusher to locate and guide the latter into its correct working position relative to the tyre and wheel rim as the pushers and wheel support are moved towards each other. As shown the wheel support 12 is guided in a stand 2 for axial movement, by a hydraulic jack or ram 15, relative to a coaxial post 8 removably secured to a top plate 4 of the stand 2. The post 8 is screw-threaded to provide for axial adjustment of a spider 18 mounted thereon, the arms 20 of the spider being of inverted T-section and each supporting a carriage 23 slidable radially therealong. Each carriage 23 pivotally supports a depending channel-section pusher 24 having a slightly upturned toe 30 and a rounded tyreengaging heel portion. Simultaneous radial adjustment of the pushers 24 for wheels of different diameters, is provided by the tie rods 47 pivotally linking the carriages 23 with a hand-operated nut 49 engaging the screw-threaded post 8 above the spider hub nut 21. A swinging jib crane 53 is mounted on the machine base 1 for removal of the post 8 and its spider assembly front the stand 2. Each pusher 24, Fig. 2, has vertical slots 42 in .its side faces slidably receiving the ends of a pivot 41 at one end of a strip-like guide finger 39, the free end of which normally hangs below the pusher toe 30. In operation, with a tyred wheel on the support 12 the spider assembly is adjusted axially and radially until the guide fingers rest on the tyre and abut the peripheral edge of the wheel flange 35. A stop projection 45 on each finger 39 limits the downward movement of the finger relative to the wheel rim. The jack or ram 15 is then operated to raise the wheel support 12 to bring the wheel tyre into engagement with the pusher heel, the guiding finger riding upwardly in the slots 42 and guiding the pusher toe to a position where subsequent movement of the support 12, due to the pusher heel engaging the tyre at a point radially inwardly of the carriage pusher pivot 25, forces the pusher toe 30 between the tyre bead and the rim flange. During this inward movement of the pusher toe the adjacent face of the finger 39, which is rounded, is engaged by the pusher toe to produce an upward thrust on the finger 39 causing it to snap to an out-of-the-way position. The finger can then be housed within the pusher by engaging its free end behind a projection 43 above the pusher toe. Specification 703,086 is referred to.