baber/WOPTO huggingface dataset:
Patent GB-403560-A (GB)
Title: Improvements in or relating to the anodic coating of aluminium
IPC: C25D11/08
Filed: 1933-04-24
Abstract: 403,560. Electrolytic surface-treatment of aluminium and its alloys. ALUMINUM COLORS, Inc., 537, East Washington Street, Indianapolis, Indiana, U.S.A.-(Assignees of Haueisen, B. R. ; Indianapolis, Indiana, U.S.A.) April 24, 1933, No. 11964. Convention date, July 26, 1932. [Class 41.] Aluminimn or an alloy thereof is anodically coated in a bath containing 35-60 per cent of sulphuric acid under conditions maintaining the anode at a low temperature ; this is effected by the use of low current densities by cooling of the electrolyte and by agitation, e.g. by cooled air introduced near the anode. The bath is preferably maintained at 20-30‹ C. and the anode not more than 5‹ C. above the bath. Under these conditions the acid strength of the bath remains substantially constant. The bath may contain 5 per cent of glycerine as a corrosion inhibiting agent ; this may be replaced by ethylene glycol, a cresol, or a phenol, preferably sulphonated. The electrolyte is preferably withdrawn continuously, passed through a cooling coil to a cool reservoir and filtered for removal of aluminium sulphate crystals. The bath is replenished by addition of sulphuric acid of the same concentration. Voltages of 2-9 may be employed. An alloy containing 10-12 per cent of silicon and one containing up to 12 per cent of copper may be treated. The coatings may be dyed, varnished, polished or otherwise treated.
Patent GB-1443380-A (GB)
Title: Toner distributor for use in an electrophotographic copying machin
IPC: G03G15/08
Filed: 1974-03-18
Abstract: 1443380 Toner distributer FUJI XEROX CO Ltd 18 March 1974 [24 March 1973] 11986/74 Heading G2H A resilient and deformable apertured plate 12 in the bottom of a toner storage container 15 is flexed downwardly from the position 18 on insertion of a rotatable brush 11, so that the brush 11 contacts the plate 12 over a substantial part of its surface and rotation of the brush 11 will supply toner 13 to a developing apparatus in a substantially uniform manner. The plate 12 may be formed of cellulose ester material.
Patent GB-828917-A (GB)
Title: Improvements in or relating to well logging apparatus
Inventor: DEWAN JOHN T
IPC: G01V5/10
Filed: 1956-04-19
Abstract: 828,917. Heavy-ion-beam tubes. SCHLUMBERGER WELL SURVEYING CORPORATION. April 19, 1956, No. 12020/56. Class 39(1). [Also in Group XL(b)] A source of neutrons for well-logging apparatus (see Group XL(b)) comprises a conventional source of accelerated deuteriumoins and a target of either tritium or deuterium to give neutrons of 14 mev and 2À5-3À0 mev energy levels respectively. In order to be able to obtain neutrons of either energy level at will from the same source targets 70 and 71 of tritium and deuterium may be mounted in the same generator and deflection plates 72 provided to enable the ion beam to be directed to the required source. The beam may be automatically controlled to alternate between the targets. A similar effect to that resulting from alternating the beam can be achieved by using a rotating target on the face of which is deposited semicircular sections of deuterium and tritium.
Patent GB-591612-A (GB)
Title: Improvements in or relating to door and like latches or catches
IPC: E05C3/12
Filed: 1945-05-14
Abstract: 591,612. Handles. LEER, W. VAN. May 14, 1945, No. 12090. [Class 52 (i)] [Also in Group XXV] A latch or catch for a door is operable by push rod which passes through a hole in the door, and is slidably inserted in a door handle comprising a grip part having at least one attachment portion secured to the door, and having a heel-piece detachably engaged therewith through which the push rod passes. The heel-piece is preferably different in material and colour from the grip part, e.g. the grip part may be of strip metal and be manufactured by extrusion to give dt a ribbed or other ornamental finish, and the heel-piece may be of moulded synthetic resin, glass or ceramic material, or die-cast metal. The handle comprises a wide U-shaped grip part 25, each end having an inturned lug 26 through which is a hole for a screw 27 which also passes through the door. Two heel-pieces 30, in the form of blocks of quadrant or such shape, pass through longitudinal slots 29 near each end of the grip part 25, so that part of each block is inside the handle grip and part outside. About half way up the inner edge 32 of each block there is a recess 33 for the part 34 of the attachment part of the handle lying below the slot 29, so that the handle and blocks interlock, the latter being held against transverse movement by the side edges of the slots 29. Each block has a recess: 35 for the metal of the grip part adjacent the outer end of the slot 29, and each has, on either side, an arcuate lateral flange or shoulder 36 which fits against the grip part on both sides of the slots 29. Each block has a recess 37 registering with the screw hole in the lug 26. these recesses may be internally screw-threaded or may contain a screw-threaded bush. The blocks: may support the grip part 25 with its lugs 26 slightly spaced from the door so that the metal handle does not contact and is insulated from the door.
Patent GB-251109-A (GB)
Title: A device or appliance for coring grape fruit and the like
IPC: A47J25/00
Filed: 1925-05-09
Abstract: 251,109. Webster, H. May 9, 1925. Removing cores from grape fruit and the like. - A device for removing the cores from grape fruit and the like comprises a cylindrical cutter a which is pressed into the fruit, and a pair or curved knives c which are pivoted to the cutter a and are movable transversely by handles g to sever the core, which is then withdrawn. The knives c may have common pivots d or independent pivots, and the cutter a is slotted at h to permit the knives c to move outwardly. The handles g may be integral with, or attached to, the knives c.
Patent GB-1299692-A (GB)
Title: Improvements to bypass gas turbine engines
IPC: F04D27/02
Filed: 1971-04-29
Abstract: 1299692 By-pass gas turbine jet engines J SZYDLOWSKI 29 April 1971 [29 June 1970] 12188/71 Heading F1J By-pass gas turbine jet engine has variablepitch fan blades so that the engine can be run at constant speed with a constant gas temperature ahead of the turbine, and the thrust is adjusted by altering the blade angle, by means of a servomechanism responsive to the thermal load on the engine, the fuel flow also being adjusted according to the thermal load on the engine. The engine comprises a gas turbine unit 4 assembled to a single-stage ducted fan unit 1, which it drives through reduction gearing 4a. The pitch of the fan blades 1a is altered by a rock and pinion mechanism 9,10. The air flow from the fan is discharged partly as a jet, the remainder flowing through the compressor 5 of the gas turbine unit. The turbine speed is kept constant at a value selected by a lever 12, by control of the fuel flow by a metering device 11b which is actuated by a regulator 11 receiving pressure fluid from an engine-driven pump 11c. The fuel flow is also controlled by a diaphragm 14 responsive to the pressures P 1  and P 2  at the inlet and exit of the high pressure compressor 5. The difference in pressure across this diaphragm is applied to a further diaphragm 15 mechanically connected to a slide valve 21, the position of which controls the position of a piston 22 connected to the rack 10. The position of the diaphragm 15 is also controlled by a cam 18, which is rotated by a lever 13, movable from a start position to an intermediate position between positions corresponding to minimum and maximum gas temperatures ahead of the turbine. The engine includes a starting device consisting of a diaphragm 12a co-ordinated with a device 12b responsive to the pressures P 1  and P 2 .
Patent GB-1010386-A (GB)
Title: Internal combustion engine ignition systems
IPC: F02P3/04
Filed: 1963-03-28
Abstract: 1,010,386. Ignition systems. GENERAL MOTORS CORPORATION. March 28, 1963 [April 5, 1962], No. 12311/63. Heading F1B. A controlled rectifier 40 is employed to control current flow through a primary winding 34 and the potential of the gate electrode 46 of the controlled rectifier is varied with the aid of a pair of interrupter contacts 16, 18. In Fig. 1 the interrupter contacts are associated with a potential divider comprising resistances 56, 58. In Fig. 2 the firing of the spark plug takes place upon opening of the breaker contacts when the breaker contacts open the energy stored in the choke coil 76 discharges into the capacitor 80 and the potential of the junction 72 becomes negative with respect to earth. The values of the resistor 70, choke coil 76 and capacitor 80 are chosen so that it will be possible to turn the controlled rectifier completely off.
Patent GB-129828-A (GB)
Title: Improvements in or relating to the Control of Dynamo Electric Machinery.
Inventor: WILSON JAMES COOPER
IPC: H02P9/12
Filed: 1918-07-29
Abstract: 129,828. Wilson, J. C. July 29, 1918. Exciting.-To minimize the lag or delay in regulation due to the self-induction of the fieldmagnet circuit of dynamo-electric machines, an additional winding a<x>, Fig. 1, is arranged on the field-magnet system of the main machine a and is connected in circuit with an additional winding d<2> on the exciter d, the windings a<x>, d<2> being connected also to a constant-potential source l. When the current flowing through the main field winding a<1> of the machine a is being increased by a manipulation of a regulating-resistance b in the circuit of the exciter main field winding d<1>, an electromotive force is induced in the current containing the coils a<x>, d<2> by transformer action of the winding a<1> on the winding a<x>, and the consequent alteration of the current through the winding d<2> has the effect of causing the exciter d to increase its voltage, producing an increased current in the winding a<1>. Similarly, decrease of current in the winding a<1> causes an automatic further decrease of voltage in the exciter d. In a modification, Fig. 2, the main machine a has one field-magnet winding a<x> connected to a source of exciting-current in series with an auxiliary machine f which may oppose or assist the voltage of the source l by suitable adjustment of the field regulator b ; additional windings a<1>, f<2> on the main and auxiliary machines are also connected together and to the source l. The invention is applicable to dynamo-electric machines employed in the driving of rolling-mills.
Patent GB-214471-A (GB)
Title: Improvements in or relating to apparatus for drilling wells
IPC: E21B10/32
Filed: 1923-05-08
Abstract: 214,471. Stewart, V. A. May 8, 1923. Bore-hole apparatus. -A well-boring device, adapted to clear a path for the casing 15 comprises a tubular drive shaft 16 and a tool consisting of a stock 18 having a slot 21 within which two blades 19, 20 are mounted on a common pivot 22; the blades are folded upwardly, Fig. 1, to permit the tool to be lowered through the shaft 16 and fall into operative position, Fig. 3, on emerging from the shaft which is then lowered into driving engagement with the blades; on raising the shaft 16, the tool may be lifted therethrough, the blades then folding downwardly by gravity. The shaft 16 has recesses 35 fitting over the blades, preferably within recesses 28, 29, to give the driving engagement; wings 34 are preferably provided on the shaft to engage the back faces of the blades. The tool stock 18 is fluted to permit the passage of water, and a swivel may be provided between the tool stock and the lifting cable 24.
Patent GB-277403-A (GB)
Title: Improved hand-signalling lamp
IPC: G09F21/02
Filed: 1926-05-14
Abstract: 277,403. Nielsen, A. F. May 14, 1926. No Patent granted (Sealing fee not paid). Holders.-In a signalling lamp, adapted to be attached to the wrist of a motorist or policeman, an electric; lamp bulb is hinged in a casing so as to be in circuit to illuminate the hand when the wrist is raised, and out of circuit when the wrist is lowered. In the form shown, a bulb 2 is carried by a holder 1 having a projecting lug 3 through which passes a pintle 4 threaded on to a pin 5 supported by a bracket 6 connected to one pole 7 of a battery 14. The holder 1 also has a contact pin 1<a> which can be swung into or out of contact with an insulated terminal 10 connected to the other pole 9 of the battery according to whether the wrist is raised or lowered.
Patent GB-936192-A (GB)
Title: Stacking machine
Inventor: HEDEGAARD ARNE MARIUS
IPC: D05B41/00
Filed: 1960-04-08
Abstract: 936,192. Sewing machines. ROTHENBORG SPECIALMASKINER FOR SY - INDUSTRIES A.S. April 6, 1961 [April 8, 1960], No. 12498/60. Class 112. [Also in Groups VIII and XVII] A frame structure, positioned adjacent a sewing machine, has a slidably-mounted workreceiving member which is movable from a position adjacent the edge of the work-supporting surface of the sewing machine to a position remote from the sewing machine, whereby a sewn article is able to pass over the member in the first position, and is folded over the member so as to hang on each side of it as the member moves to the second position. A stand 24, located at the rear of a sewing machine 10, has two upright tubular members 26, 28 which telescopically receive bars 23, 25 fixable in vertical adjustment by clamps 27, 29. Rigidly fixed to the upper ends of bars 23, 25 are the lower ends of bars 18, 20 which slope upwardly at an angle of 45 degrees and are connected together at their upper ends by a bar 19. Bars 18, 20 slidably receive the ends of a bar 16 adapted to be moved upwardly by a motor 32 and a chain drive mounted on bar 20. When bar 16 is in its lowermost position, a sewn article leaving machine 10 moves downwardly over the curved rear edge of the work-supporting table 14 and passes over bar 16. Motor 32 is then operated, and the article becomes folded over and hangs down on each side of bar 16 during the upward movement of the latter. A downwardlyprojecting apron may be fixed to bar 16. A limit switch 38 is operated by bar 16 in its uppermost position to de-energize motor 32, when bar 16 descends under gravity to its lowermost position. Fingers 110, 112 pivoted on bar 16 are spring-biased to hold the article thereon, and are arranged to be moved away from bar 16, when the latter approaches its lowermost position, by engaging abutments 113, 115 provided on arms 114, 116 fixed to bars 18, 20. Bars 18, 20 may, alternatively, be pivoted to bars 23, 25 and be adjustable to slope upwards between angles of 30 degrees and 75 degrees. Motor 32 is started automatically when a knife blade 98 is operated manually to sever the thread chain between a pair of sewn articles. Blade 98 is carried by a plunger 96 biased upwardly by a spring 104, and adapted to be moved downwardly by a solenoid 92 when a switch 90 is closed manually by an actuating member 91. When plunger 96 moves downwardly, a pin 100 thereon operates an actuating member 51 for a switch 50 to energize the motor 32.
Patent GB-1449182-A (GB)
Title: Anti-skid assembly for rolling machines
IPC: B21H5/02
Filed: 1975-03-26
Abstract: 1449182 Rolling tools CATERPILLAR TRACTOR CO 26 March 1975 [24 April 1974] 12685/75 Heading B3M The reciprocable tools 18 and 19 of a machine suitable for rolling teeth or splines on a cylindrical workpiece 21 are provided at their leading ends with resilient pads 28 and 29 for initially engaging and rotating the workpiece before rolling commences. Each pad is of an abrasive, resilient, and oil-resistant material such as a synthetic rubber, and is secured mechanically or by adhesive in a corresponding recess in the tool.
Patent GB-505863-A (GB)
Title: Improvements in inhaling apparatus
IPC: A61M11/00
Filed: 1938-04-28
Abstract: 505,863. Dustinhaling apparatus. BAZOIN, R. V. A. F. J. April 28, 1938, No. 12738. [Class 81 (ii)] Dust-inhaling apparatus, particularly apparatus for inhaling lime dust, wherein lime or other dust-generating material is stirred by revolving rigid paddles which allow the material to fall at the top of their path, is characterized in that an air-stream, arranged to.convey the dust particles, is passed above the chamber containmg the paddles and out of the path of the paddles themselves whereby only the finest, particles are entrained. As shown, air is drawn by a fan 38, Fig. 3, through an annular perforated screen 31, and over an electric heating coil 41, and supplied to a chamber 7 through a grid 51. Revolving paddles 24 in the lower part of the chamber out of the path of the air lift lime contained in a semicylindrical removable base 9, and allow it to fall at the top of their path. The lime-laden air passes through a variable number of reticulated screens 65 to a mouthpiece 67, Fig. 4, fitted over a flange 66. The parts of the apparatus are contained in a casing 1 having hinged lids 5, 6, and a central transverse partition 3. The paddle shaft 16 and the fan-shaft 29 are driven through belts 60, 58, from an electric motor 53, housed in an upper compartment and controlled by a rheostat on the outside of the casing. The heating coil 41 is wound upon a cruciform former and is connected with a rheostat coil 43 controlled by an external switch. The grid 51 comprises horizontal partitions bent upwardly as shown to prevent the passage of lime dust into the fan chamber. The chamber 7 has a filling hole closed by a screw-held plug 68.
Patent GB-297129-A (GB)
Title: The manufacture of derivatives and condensation products of anthraquinone
IPC: C09B3/04
Filed: 1927-05-12
Abstract: 297,129. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). May 12, 1927. Cinnamylideneanthrone or its derivatives are obtained by heating anthrone or its derivatives with cinnamic aldehyde or its addition products, such as the bisulphite compound, with or without an acid condensing-agent, such as sulphuric acid, zinc chloride, or phosphorus oxychloride. In an example, anthrone and cinnamic aldehyde are condensed in sulphuric acid solution; a-oxyanthrone or #-chloranthrone react similarly. Benzanthrotte or its derivatives are obtained by heating the cinnamylideneanthrones with aluminium chloride, the phenyl residue being split off; an example is given of the production of benzanthrone. Bz-1-Phenylbenzanthrone or its derivatives are obtained bv heating the cinnamylideneanthrones - to about 250-300‹ C., alone or in suspension or solution, e.g. in fused potassium bisulphate, or - a mixture of sodium and potassium acetates; according to examples, Bz-1-phenylbenzanthrone is obtained by heating' cinnamylideneanthrone alone, or in solution in alpha-chlornaphthalene, pphenetidine, or a molten mixture of potassium and sodium acetates; Bz-1-phenyl-alpha-oxybenzanthrone and Bz-1-phenyl-#-chlorbenzanthrone are prepared similarly. Alternatively, cinnamic aldehyde may be condensed with anthrone or its derivatives and the condensation products converted without isolation into the Bz-1-phenylbenzanthrones by further heating, with or without acid condensing-agents or solvents; according to examples, Bz-1-phenylbenzanthrone is obtained by heating anthrone with cinnamic aldehyde, then adding phosphorus oxychloride and heating further, or by heating anthrone and cinnamic aldehyde in a-chlornaphthalene or with potassium acetate and acetic anhydride, Bz-1-phenyl-a-oxybenzanthrone is obtained by heating a-oxyanthrone and cinnamic aldehyde with zinc chloride and Bz-1-phenyl-#-chlorbenzanthrone by heating #.chloranthrone and cinnamic aldehyde with achlornaphthalene and phosphorus oxychloride. Bz-2-Phenylbenzanthrone or its derivatives are obtained by isomerizing the Bz-1-phenylbenzanthrones by heating with aluminium chloride, or aluminium chloride and common salt; the melts containing the Bz-1-phenyl compounds may without isolation of the products be subjected to this further treatment; examples are given of the treatment of Bz-1-phenylbenzanthrone or the cinnamylideneanthrone melt containing it, and of Bz-1-phenyl-a-oxybenzanthrone and Bz-1-phenyl- #-chlorbenzanthrone. alpha-Oxyanthrone referred to above is prepared by reduction of a-oxyanthraquinone by means of copper or aluminium in sulphuric acid. #-Chloranthrone is prepared similarly from #- chloranthraquinone. Specification 1817/05 is referred to.
Patent GB-1420493-A (GB)
Title: Shaped articles of isotropic carbon
IPC: C01B31/00
Filed: 1973-03-16
Abstract: 1420493 Isotropic carbon KOPPERS CO Inc 16 March 1973 [26 April 1972] 12898/73 Heading C1A [Also in Division C5] In preparing a shaped article of isotropic carbon, a substance obtained from hydrocarbon material, i.e. a petroleum or coal tar distillate, by passing elemental oxygen through the material until at least 0À5 s.c.f. of oxygen have reacted per pound of the material is treated to remove its lower boiling constituents and produce a residue having a specified coking value, the residue is then shaped under pressure and carbonized at a temperature in excess of 800‹ C. to produce isotropic carbon. The shaping step may be at a pressure of 10,000 p.s.i. and at an elevated temperature. The lower boiling constituents may be removed by vacuum distillation or solvent extraction. The elemental oxygen may be supplied as air, and the treatment with oxygen may be at a temperature in the range 250‹ to 420‹ C. and at a pressure in the range 80 to 100 p.s.i. Particular petroleum and coal-tar distillates are specified, and the carbonizing and shaping steps may be carried out simultaneously. Graphite may be mixed with residue before shaping. Physical properties of the product are given. The graphite filled material may be used as an anode.
Patent GB-1115742-A (GB)
Title: An improved power supply control circuit
IPC: F02P15/12
Filed: 1965-03-26
Abstract: 1,115,742. Starting I.C. engines. MAR-LIN SAFETY DEVICES Inc. 26 March, 1965 [28 April, 1964], No. 12969/65. Heading H2H. [Also in Division F1] Generally the means for providing increased output from the battery 14 comprises an oscillator 20, a coupling 21 and a rectifier circuit 22 for transferring the oscillator output added to that of the battery to the ignition coil. The delivery of energy to the coil is controlled in response to changes in the engine's cranking speed and a greater quantity of energy is added to that of the battery when the engine speed is low. The oscillator 20 includes a capacitor 19. To produce oscillations a feedback circuit couples the output circuit to the input electrodeof the transistor.When the oscillator 20 is supplying energy to the ignition coil circuit the secondary 35 of the transformer 21 may be considered as an auxiliary or second source whose output is added to that being supplied by the battery 14. The circuit includes a switch which is closed only during starting operations of the engine. For purposes of illustration this switch is shown as part of a manual switch 15 which in the start position completes one circuit through the battery and ignition coil 10 and another circuit through the battery and the starter solenoid 17.