baber/WOPTO huggingface dataset:
Patent GB-414633-A (GB)
Title: Improvements in screw-thread cutting mandrels
IPC: B23G1/32
Filed: 1932-10-31
Abstract: 414,633. Milling screws. DECORET, A., Villefranche-sur-Sa¶ne, Rhone, France. Oct. 31, 1932, No. 30575. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 29, 1933]. [Class 83 (iii).] Portable apparatus for milling threads on pipe-ends carries a nut which fits over a threaded rod anchored to the pipe, the pitch being the same as that to be cut and the centre of the nut variable with respect to the cutter axis to adjust the depth of out and allow for operation on different pipe diameters. The cutterrotating gear which may be electric, pneumatic or driven from a flexible shaft is carried by a casing 1, the lower end 4 of which is circular and adjustably supported in a split collar 5 which can be tightened around the part 4 by a screw 6. An extension of the collar carries a tube 7, the lower end of which is split and may be contracted chuck-fashion by a screwed sleeve 8, the upper end being slotted to receive a pair of threaded chaps 10 ; the latter are provided with projecting pins 11 which engage cam-slots 12 in a rotatable latch 13 enabling them to be quickly forced centrewards or retracted. A split sleeve 18 normally held together between two oppositely tapered cones 16, 17 by spring rings 19 is fitted inside the pipe and tightened by a nut 20 on a rod 9, the upper end of this rod is screwed with threads of the same pitch as those to be cut and supports the cutter-spindle casing through the threaded chaps 10 and the sleeve 7, the epicyclic movement of the cutter 2 about the work being effected by hand. The disc 4 is graduated to indicate the setting required for the diameter of pipe to be operated upon, this being easily effected by unclamping the screw 6 and rotating the cutter-spindle housing. The apparatus may be used for milling inside threads on large diameter pipes.
Patent GB-533758-A (GB)
Title: A new or improved four-stroke internal combustion engine
IPC: F02B53/00
Filed: 1939-11-23
Abstract: 533,758. Rotary engines. STEVENS. H. W. Nov. 23, 1939, No. 30652. [Class 110 (ii)] Working chambers are formed within a stationary casing 6, rotary valve discs 13, 14 oppositely oscillating rims 8 and vanes 10 carried by the rims. The rims 8 with the vanes 10 are oscillated by means of slots in the arms 9 carrying the rims and crank pins 23 on pinions 21, the pinions being carried by a fixed frame 25 and gearing with wheels 24 fast on the shaft 7. The disc 13 is fixed directly on the shaft 7 and the disc 14 rotates with it, being mounted on a sleeve 32 and driven from the shaft by a gear train 31, 30, 29. The engine may be a four stroke I.C. engine or a steam engine and the forces applied to the vanes and transmitted to the shaft through the pinions 21 and through ratchet pawls 35 on the rims 8 which engage teeth on the valve discs 13, 14.
Patent GB-482705-A (GB)
Title: Improvements in the projection of lantern slides
IPC: G03B21/20
Filed: 1937-11-09
Abstract: 482,705. Optical-projection apparatus. MASON A. G., and MILLS BROS. (MODEL ENGINEERS), Ltd. Nov. 9, 1937, No. 30740. [Class 97 (i)] In the projection of lantern' slides, colour films. &c. a lamp having a small thick filament is used, and is supplied with current at a substantially higher voltage than that for which the lamp is rated. The lamp may be a 36 or 48 watt automobile head lamp rated at substantially 12 volts, and may be supplied with current at substantially 20 volts. A pure white light is stated to be obtained without overheating of the slide &c.
Patent GB-1384059-A (GB)
Title: Method and apparatus for manufacturing oxide-containing lead  powder
IPC: C22C1/10
Filed: 1971-07-01
Abstract: 1384059 Making lead oxide powder JOSEPH LUCAS (INDUSTRIES) Ltd 13 June 1972 [1 July 1971] 30820/71 Heading B3A [Also in Divisions B2 C1 and G3] A method of manufacturing oxide-containing lead powder comprises rotating a mill 11 using an electric motor 13, feeding lead pieces into the mill for grinding, passing a controlled quantity of oxygen-containing gas into the mill during grinding to oxidize the lead and produce lead oxide within the lead powder, removing the oxide-containing lead powder as it is produced, monitoring the power consumed by the motor during operation of the mill with a watt meter 15, and controlling the feeding of the lead pieces into the mill using the watt meter output to allow a constant amount of. lead to be contained in the mill. The gas may be air and the watt meter is preferably arranged to produce an output; e.g. optical output, which is used to operate an actuator 16 to automatically control the feeding from feeding mechanism 12. It is desirable to damp the watt meter so as to allow for transient fluctuations in the power required by the motor, e.g. an A.C. induction motor, due to surging of the mill in operation. The amount of lead contained in the mill is kept constant and powder leaving through outlet 14 has a consistent lead-oxide content.
Patent GB-299398-A (GB)
Title: Improvements in or relating to enamelling furnaces or the like
IPC: C23D9/08
Filed: 1928-10-25
Abstract: 299,398. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Oct. 25, 1927, Convention date]. Resistance furnaces. - In an enamelling &c. furnace, heated by electric resistance elements 2, the charges are supported on members 4 the stems 12 of which project upwardly from a movable carriage 7 through longitudinal slots 3 in the furnace floor,. these slots being sealed by metal plates 9 secured to the stems 12. The carriage 7 is mounted on rollers 8 and the chamber below the furnace floor in which it is located is shut off from the atmosphere. The stems 12 'of the supports 4 are detachably mounted on members 5 of heatinsulating material, these members being carried by pins 6 secured to the carriage.
Patent GB-958285-A (GB)
Title: Improvements in sealing strips
Inventor: FORRESTER KINGSLEY HENSHAW
IPC: B60J10/08
Filed: 1961-08-28
Abstract: 958,285. Seal strips; clips. BRIGHT MANUFACTURING CO. Ltd. May 25, 1962 [Aug. 28, 1961], No. 30975/61. Headings E1J and E2B. A buffer sealing strip for a door comprises a tube 1 of sponge rubber or foamed plastic with a protruberance 3 on one side and contains therewithin a continuous U-section clip 2 e.g. of mild steel or aluminium. The tube 1 entering the. interior of the clip and the extremities 10 of the arms of the clip being turned inwardly and towards the base of the U so that they directly or indirectly grip a supporting flange 4 on which the strip is mounted. Part of the strip may have a pile or other ornamental surface 5. The clip is formed from sheet metal by stamping out alternate portions as indicated in Fig. 4 and bent to U-form.
Patent GB-734361-A (GB)
Title: Improvements in and relating to agricultural spraying machines
IPC: A01M7/00
Filed: 1952-12-05
Abstract: 734,361. Crop sprayer. CHAFER, Ltd., J. W., and CHAFER, C. L. Dec. 7, 1953 [Dec. 5, 1952], No. 30996/52. Class 69 (3). The operating.lever 15 of a cock connecting the spray medium pipe-line to a delivery pipe is secured at one end to the valve operating spindle 16 and at its other end by a pin 17 to the inner member 18 of a telescopic link mechanism 18, 19. The latter is pivotally secured at 20 to a fixed bracket 21 and a tension spring 22 is connected between the bracket and the pin. The spring holds the lever 15 in the valve closed position and a rope 24 secured to an eye 25 on the pin is pulled to extend the linkage and open the valve. The linkage is locked in the valve open position by a mechanism which includes a toothed member 26 rotatably mounted on the outer link which is engaged by a latch 27 on the inner link when the linkage is extended so that the member 26 is partly rotated. Slots in the links enable such rotation which causes the inner link to be locked, Fig. 6. A further pull on the rope disengages the inner link from the member 26 which is turned slightly by the latch 27 to allow the spring 22 to retract the inner link and close the cock.
Patent GB-1120408-A (GB)
Title: Lighting fitting with channel-section spine
Inventor: BARNES JOHN SIDNEY
IPC: F21V21/02
Filed: 1967-07-05
Abstract: 1,120,408. Lighting fittings. BRITISH LIGHTING INDUSTRIES Ltd. 5 July, 1967, No. 31038/67. Heading F4R. A lighting fitting comprising a channelsection spine 10 having inturned flanges 13 at the free edges of the sides of the channel is suspended by a bracket 15 having two pairs of hook-shaped supports 14 over which the respective flanges engage, the sides of the channel being sufficiently flexible to allow either of them to be pulled outwardly to disengage the corresponding flange from its supports, and the supports being so shaped that the fitting will then hang freely from the other flange to allow access to the circuit elements within the spine.
Patent GB-281870-A (GB)
Title: Improvements in or relating to spanners
IPC: B25B23/00
Filed: 1926-12-08
Abstract: 281,870. Jacobs, C. J. Dec. 8, 1926. Wrenches.-A spanner for holding one portion of an object such as a valve tappet so that the hands of the operator are left free to manipulate another portion of the object comprises a head portion adapted to grip the member to be held, and a tool portion connected to the head portion by a shank and adapted to engage with any suitable support. The device shown in Fig. 1 comprises jaws a for engaging the tappet body b and a tail portion e with feet d at the end of the shank c adapted to bear, against a suitable support such as the wall of the oil trough. The tail portion may have a flange fitted with an adjustment screw, and the shank may be extensible. Another construction of the device shown in Fig. 2 is adapted for use when there, is no support against which the tail part could engage and consists of a body portion g with jaws h adapted to engage adjacent tappets.
Patent GB-1034488-A (GB)
Title: Selective halogenation of ketones
IPC: C07C49/16
Filed: 1964-08-04
Abstract: Hypohalites may be produced by the reaction of a metal oxide with a halogen in the presence of water, the metal oxide being magnesium oxide, zinc oxide, calcium oxide, silver oxide or copper oxide.ALSO:1,1,1-Trihalo-2-ketones are prepared by reacting a 1-halo-2-ketone or a 1,1-dihalo-2-ketone with a hypohalite in a liquid medium in which hypohalite ions can be formed at a temperature of from 0 DEG  to 70 DEG  C. while maintaining the pH of the reaction mixture from 6 to 10. The medium is preferably aqueous. The hypohalite may be present as such or may be produced in situ. Examples are given. Ketones of various degrees of halogenation are obtained as by-products.  Chloroform is obtained as a by-product when 1-chloroacetone or 1,1-dichloroacetone is chlorinated. Bromodichloromethane is obtained as a by-product when 1,1-dichloroacetone is brominated.
Patent GB-900793-A (GB)
Title: Improvements in or relating to paint spraying booths
IPC: B05B14/462
Filed: 1958-10-01
Abstract: <PICT:0900793/III/1> A wet back paint spraying booth is provided with a filter into which the water forming the curtain falls, the filter having a conveyer shaped to provide a trough in which the filtering medium is supported, which conveyer may be traversed periodically or continuously so that, as the filtering medium becomes clogged with paint, a fresh portion is drawn into the trough.  As shown, an endless chain conveyer 11 is shaped to provide a trough-like upper surface which supports a filter medium such as filter-paper 12, over a water tank 14.  Above the tank 14 is a paint spraying booth, having a header tank 15 from which water overflows down a panel 18, forming the back of the booth, washes over deflector plates 21 and 22, passes through the filter 12 into the tank 14, and is returned by a pump 16 to the header tank 15, a portion being drawn off by a pipe 36 to supply spraying nozzles 35.  Air is drawn through the falling water curtain below the panel 18 by a fan 25, and is washed by the spray from the nozzles 35.  The conveyer 11 may be advanced to move on the filtering medium either manually or by a motor, which may be controlled automatically by a float in the trough formed by the conveyer.ALSO:A wet-back paint spraying booth is provided with a filter into which the water forming the curtain falls, the filter having a conveyer shaped to provide a trough in which the filtering medium is supported, which conveyer may be traversed peridically or continuously so that, as the filtering medium becomes clogged with paint, a fresh portion is drawn into the trough.  The conveyer may be advanced either manually or by a motor, which may be controlled automatically by a float in the trough formed by the conveyer. The filter medium is preferably paper.
Patent GB-1440239-A (GB)
Title: Apparatus for winding wire onto a bobbin power supply apparatus
IPC: B21C47/02
Filed: 1973-07-03
Abstract: 1440239 Supporting wind-up bobbins BEKAERT S.A. N.V. 3 July 1973 31629/73 Heading D1J A bobbin 4 is mounted on a shaft 3 that is supported at one end in a bearing 2, there being a centre 6 that is movable into and out of engagement with the other end of the shaft 3 and locating means 21, 21, situated at at least two positions spaced from one another around the shaft axis, to securely locate the centre against displacement transversely of its axis when the centre 6 is in engagement with the shaft 3. The centre 6 is itself rotatable in a cylinder 9 and is axially displaceable therein, for example by hydraulic fluid, a worm drive or a hand wheel and plunger assembly. The centre 6 is on a frame 8 that can be swung about pivots 21 to move it clear of a bobbin 4. A hoist 12 is provided for lifting a bobbin into alignment with the shaft 3. The shaft 3 has keys in its surface that can be expanded radially to grip the bobbin 4.
Patent GB-401111-A (GB)
Title: Improvements in and relating to methods of and apparatus for rolling metal, particularly strip metal
IPC: B21B37/54
Filed: 1932-11-09
Abstract: 401,111. Maintaining proportional speeds of motors. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(General Electric Co. ; Schenectady, New York, U.S.A.) Nov. 9, 1932, No. 31680. [Class 38 (iii).] Metal, particularly strip metal, is elongated by subjecting it to a compressive force between rolls rotated at substantially constant speed and withdrawing the metal from the rolls at substantially constant speed, so that the tension increases when the rate of elongation tends to decrease. Shunt wound motors with an almost negligibly drooping speed characteristic may be employed for driving the rolls, but preferably a master speed controlling device is used. In the preferred embodiment of the invention direct current is supplied to the armatures of the rolldriving motors 16, 17 by a Ward-Leonard generator 21, the field windings of the generator and of the motors being supplied from an exciter 29. The field windings 36, 37 of the roll-driving motors are in series with variable resistances (e.g. carbon plates) 41, 42 which are automatically controlled in response to variations in the load on the rolling mills 11, 12, 13, 14, Fig. 1. Each roll motor drives through a variable speed gear such as a belt 56 and cone pulleys 54, 55, a rotor 46b connected to a single phase circuit 49 and having a single phase winding inductively disposed relatively to a polyphase winding on a stator 46a, a similar stator 43a being coupled to the stator 46a. A rotor 43b has a polyphase winding supplied from a machine 45. In operation, the field strengths and belt 56 having been adjusted to suit the roll speed required, any subsequent departure from the selected speed owing to variation in the load, results in a disturbance of the balance between the voltages applied to the windings of the rotor 43b and to the windings of the stator 43a whereupon the freely rotatable rotor turns relatively to the stator, driving a worm gear 60 and cam 59 to actuate a lever 58 thus varying the resistance of the field winding 36 to restore the speed of the roll motor to normal. The system is duplicated for the other roll motors.
Patent GB-300400-A (GB)
Title: Improvements in and relating to fountain pens
IPC: B43K5/06
Filed: 1927-11-24
Abstract: 300,400. Cutler, R. F. Nov. 24, 1927. Reservoir pens for solid ink.-In a reservoir pen of the type having a barrel divided into two compartments separated by a valve and adapted to contain, respectively, water and concentrated ink solution or the like, a separately-constructed valve disc or seat is mounted against a shoulder in the barrel and co-operates with a valve member associated with a map movable on the end of the barrel. In the form shown in Fig. 2, an apertured disc 21 is seated on an annular shoulder 13 in the barrel 10 and serves to separate the water compartment 14 from the ink compartment 17 in a cap member 16 screwing into the rear end of the barrel and provided with an aperture 19 at the lower end. In use, the compartment 14 is filled with water, the member 16 withdrawn slightly, and the pen shaken to mix the contents of the two compartments. When the member 16 is screwed home, communication between the two compartments is interrupted. In order to prevent leakage round the nib-section, the water compartment may be constituted by a flexible member 25, Fig. 4, secured at its inner end to an apertured member 23 screwed into the shoulder 13. To fill the member 25, the member 16 is withdrawn from the barrel, and in order to prevent leakage of ink therefrom, the lower end is provided' with a housing 26 having an aperture communicating with the interior of the ink compartment and enclosing a reciprocable valve member 27 normally closing the aperture 19, In a further modification, the solid ink compartment is closed by a member 33, Fig. 11, formed. with a valve seat engaged by a valve 35 on the end of a rod 36 passing through the end of the compartment and under the control of a spring 38 and a cap 16 screwing on the end of the barrel.
Patent GB-191245-A (GB)
Title: Trouser press
IPC: A47G25/72
Filed: 1921-11-26
Abstract: 191,245. Ross, J. S. Nov. 26, 1921. Trouser presses.-In trouser presses, in which an arched spring acts on the upper board and, when compressed, disengages catches from racks carried by the lower board, the pressure is obtained by means of pressure bars 6 fixed centrally to springs 7 arranged between the pressure bars and the upper boards 4. The springs are held in compression by pawls 8 engaging racks 9 attached to the lower board. The pawls are preferably in the form of links and the racks are U-shaped to embrace tongues 11 on bars 5 which are attached to the upper boards and have pin and slot connections at 12 with the springs. The press is supported by rubber or like feet 24.
Patent GB-755604-A (GB)
Title: Improvements in dust extractors for grinding wheels
Inventor: DOWNING ROBERT ERNEST
IPC: B24B55/06
Filed: 1952-12-15
Abstract: 755,604. Confining dust generated by grinding wheels; injectors. HOLMAN BROS., Ltd. March 15, 1954 [Dec. 15, 1952], No. 31721/52. Classes 8(2) and 71. A suction duct 7, Fig. 1, extending adjacent to and around part of the circumference of a grinding wheel 1 has an open end 11 directed towards and located forwardly of the working portion of the wheel, a closed end 10, a suction outlet 14 and is in open communication with the wheel at a point or points e.g., slots 12, 13, intermediate the ends 10, 11. The duct is formed as part of a circumferential wall 6 of a wheel guard 4 having side'walls 5. A flange 15 and lips 16, 17 serve to direct dust into the duct 7. The suction outlet 14 is connected by a duct 22, Fig. 2, to a chamber 21 of an injector having a working nozzle 20 fed with the exhaust from a motor driving the wheel and which discharges into a convergent tube 23 leading to a throat B and an outlet 24.
Patent GB-451746-A (GB)
Title: Manufacture of carboxylic acids or derivatives thereof containing the pyridine nucleus
IPC: C07D213/79
Filed: 1935-11-16
Abstract: Carboxylic acids containing the pyridine nucleus, or derivatives, e.g. esters or amides, thereof, are manufactured by treating the corresponding a -halogenated compounds with catalytically activated hydrogen at ordinary or raised temperature without hydrogenation of the nucleus, preferably in the presence of an acid binding agent, e.g. an alkali, an alkaline-earth, magnesium oxide or an organic base.  As catalysts may be employed metals of the platinum group or non-noble metals such as nickel or cobalt or mixtures thereof.  In examples: (1) a solution of 2-chloroquinoline-4-carboxylic acid in aqueous potassium hydroxide is treated with hydrogen in the presence of active nickel, and mineral acid is added to precipitate quinoline-4-carboxylic acid; the potassium hydroxide may be replaced by magnesium oxide; (2) a solution of 2-chloro-3-phenylquinoline-4-carboxylic acid in aqueous sodium hydroxide is treated with hydrogen in the presence of a cobalt-nickel catalyst or platinum black, to produce 3-phenylquinoline-4-carboxylic acid; (3) a solution of 6-phenyl-2-chloropyridine-4-carboxylic acid in aqueous sodium hydroxide is treated with hydrogen in the presence of active nickel, yielding 2-phenyl-pyridine-4-carboxylic acid; (4) 6-phenyl-2-chloropyridine-3-carboxylic acid similarly yields 6-phenylpyridine-3-carboxylic acid; (5) a solution of 2-chloroquinoline-4-carboxylic acid dimethylamide in dioxane and caustic soda lye is treated with hydrogen in the presence of active nickel to produce quinoline-4-carboxylic acid dimethylamide; the dioxane may be replaced by an aliphatic alcohol and the caustic soda by an aliphatic amine or pyridine; (6) 2-chloroquinoline-4-carboxylic acid 2<1>-diethylaminoethylamide is treated with hydrogen in the presence of platinum black in alcoholic solution, producing quinoline-4-carboxylic acid 2<1>-diethylaminoethylamide hydrochloride.  6-Phenyl-2-chloropyridine-3- and 4-carboxylic acids are obtainable by saponifying the corresponding acid chlorides, produced by the action of phosphorus pentachloride on 6-phenyl-2-oxypyridine-3- and 4-carboxylic acids.
Patent GB-655968-A (GB)
Title: Improvements in or relating to the production of aldehydes
IPC: C07C45/54
Filed: 1948-12-10
Abstract: Aldehydes having from three to twenty carbon atoms in the molecule are prepared by thermally decomposing an alkane diol monoacyl ester in the vapour phase in the presence of an alumina catalyst.  The preferred acyl ester is the monoformate but other esters such as a butyrate or benzoate may be used.  The temperature at which the catalytic conversion takes place is preferably in the range 250-475 DEG  C.  The pressure is such that the products are maintained in the vapour state.  Thus, atmospheric pressure may be used for the decomposition of the lower esters but reduced pressures are required for the conversion of octanediol monoformate.  It is desirable to use an inert gas as diluent.  The catalyst used may be any of the anhydrous or hydrated forms of aluminium oxide.  "Activated aluminas" are the preferred catalysts.  The catalyst may be used with any known activator and may be deposited on an inert carrier.  Water may be present in the reaction mixture and the monoacyl ester may be contaminated with diacyl ester.  The mixture of esters obtained by treating olefines residues from cracked petroleum products with formic acid and a peroxide is a suitable starting material.  In the examples: (a) monoformate ester of octanediol, contaminated with some of the diformate ester is heated in the presence of an alumina catalyst to give octanal; (b) undecandiol monoformate contaminated with some of the diformates is converted to undecanaldehyde; (c) propandiol monoformate contaminated with some of the diformate is converted to propionaldehyde; (d) octandiol monoacetate is converted to octanol or acetic acid; (e) octandiol monobenzoate is converted to octanol and benzoic acid. The formic acid formed in the cases where a formic ester is used as the starting material may be concentrated by azeotropic distillation with isopropyl ether or propyl formate.  Some glycol may be recovered by the hydrolysis of residual products with water and hydrochloric acid.  Specification 634,118 is referred to.