baber/WOPTO huggingface dataset:
Patent GB-591969-A (GB)
Title: Pencil sharpeners
IPC: B43L23/08
Filed: 1945-04-11
Abstract: 591,969. Pencil sharpeners. MAIDITCH, R. De. April 11, 1945, No. 9019. Convention date, March 10, 1944. [Class 146 (iii)] A pencil sharpener comprises a cylindrical body having a substantially flat top, a knife, and a cap threaded on to the body for clamping the knife thereon. As shown a conical opening 3 extends through the body 1 and a knife 8 seated on dowel pins 9 in a recess 7 in the flat top 2 of the body extends into the conical opening 3 through a slot 6. The cap 13 has projections 15 to engage spiral grooves 14 in a recessed part 12 of the body 1 and a flat portion 17 to hold the knife 8 on the pins 9 shaped as in Fig. 2 to provide for inaccuracy in the adjustment; for the same reason an opening in the cap to coincide with 'the conical opening 3 in the body is elongated.
Patent GB-1103203-A (GB)
Title: 6,13- and 7,13-dialkylgonapentaene compounds
Inventor: SMITH HERCHEL
IPC: C07J5/00
Filed: 1964-03-03
Abstract: Novel steroids of the formula <FORM:1103203/C2/1> (wherein one R is methyl or ethyl and the other H; R1 is C1- 4 n-alkyl; R2 is H, alkyl or acyl; and Y is carbonyl which may be ketalized or hydroxymethylene which may be O-acylated) are prepared by acid cyclodehydration of compounds of the formulae <FORM:1103203/C2/2> and <FORM:1103203/C2/3> The products may be reduced to 17b -ols or ketalized and the ols may be esterified.  The above structure includes all states of resolution except the resolved 13a -enantiomers.  2 - (61 - m - Methoxyphenyl - 31 - oxoheptyl) - 2 - methyl and ethyl-cylopentane-1,3-diones are prepared by reacting m-methoyxacetophenone and methyl bromoacetate in presence of zinc to give methyl 3 - hydroxy - 3 - (m - methoxyphenyl) - butanoate, reducing this to methyl 3-(m - methoxyphenyl) - butanoate by catalytic hydrogenation, reducing this with LiAlH4 to 3- (m - methoxyphenyl) - butan - 1 - ol, brominating this to 3-(m-methoxyphenyl)-n-butyl bromide, reacting this with acetylene to give 5-(m - methoxyphenyl) - hex - 1 - yne, reacting this with formalin and diethylamine to give 1-di-ethylamino - 6 - (m - methoxyphenyl) - hept - 2 - yne, reacting this with mercuric sulphate and sulphuric acid to give 1-diethylamino-6-(m-methoxyphenyl) - heptan - 3 - one, slowly distilling this to give 6-(m-methoxyphenyl)-hept-1-en-3-one, and reacting this with 2-methyl-cyclopentane - 1, 3 - dione or the 2 - ethyl compound.
Patent GB-375249-A (GB)
Title: An improved method of and apparatus for manufacturing covered arc welding electrodes
IPC: B23K35/40
Filed: 1932-03-29
Abstract: 375,249. Extrusion machines. E.M.F. ELECTRIC CO. PROPRIETARY, Ltd., 1059, Rathdown Street, North Carlton, Victoria, Australia. March 29, 1932, No. 9049. Convention date, April 23, 1931. [Class 87 (ii).] In making coated arc welding electrodes by automatically feeding wire 1 through a flux container 3, then severing them into lengths and then transferring them to a drying apparatus, the flux in a plastic state is extruded on to the wire by a plunger 11 operated by fluid pressure, a coiled spring 9a adjacent to or surrounding the inner end of the die 9 serving as a mechanical agitator to prevent the separation of the fluid constituents of the flux mixture from the solids thereof.
Patent GB-594600-A (GB)
Title: Moulding method and apparatus
IPC: B22C9/10
Filed: 1945-04-12
Abstract: 594,600. Casting. FORD MOTOR CO., Ltd. April 12, 1945, No. 9163. Convention date, May 29, 1944. [Class 83 (i)] Moulding-machines.-A method of making a mould comprises wrapping a flexible pattern around a positioning post in a mould box, tamping sand into the space in the box surrounding the flexible pattern, inverting the box, removing the box, coiling the flexible pattern inwardly to extract it from the moulded sand and then lifting the coiled pattern from the sand mould. Pattern.-The pattern comprises a series of flexibly connected elements having outer surfaces conforming with the shape of the inner surface of the cavity to be moulded. A flexible pattern for a hob comprises eight elements 7 conne'cted together by parallel hinge pins 8 and having outer surfaces formed with projections 11 arranged to form a spiral series of cutter-shaped teeth when the pattern is in expanded position. The mould box comprises a floor 1, a vertical wall 2 and a vertical post 3 of general octagonal cross-section with vertical grooves 4 at the junction of the flat surfaces 5 into which nest the hinge portions of the patterns. A dowel pin 6 upstanding from the floor 1 enters a locating hole 15 in one of the pattern elements. After the space between the wall 2 and the pattern has been packed with sand; a cover 17 is placed over the mould box which is then inverted and withdrawn, leaving a mould 16 with the flexible pattern embedded in the sand. Moulders' tools.-A tool comprising a screw 12 with loop handle 13 is screwed into a tapped hole 14 of the pattern and the pattern is then coiled and withdrawn. Centrifugal casting-machines.-In Fig. 8, the finished mould 16 is shown arranged for centrifugal casting between a base mould 18 and an upper mould part T9 between which is supported a core 22. Molten metal from a pouring cup 21 passes through sprues 20a and 25 to gates 26 in the base mould. In a modified form the molten metal passes from the cup 21 to the gates by way of a central riser passing through the core. Specifications 579,097 and 582,819 are referred to.
Patent GB-214617-A (GB)
Title: A pressure regulator for steam, compressed air or liquid brakes, presses, clutches and the like
IPC: B60T15/06
Filed: 1924-04-10
Abstract: 214,617. Iversen, J. April 18, 1923, [Convention date]. Gearing for stopping and startin machinery. - The application and release of steam, compressed-air or liquid brakes, and the braking pressure are governed by a slide valve e connected through a spring k to a balancing piston f of the same diameter as the slide valve and adapted to be operated by a lever h mounted on a spindle i. The valve may also be used for regulating the supply of pressure fluid to clutch-actuating mechanism. In apparatus in which the brakes are applied by releasing fluid from one side of the brake piston, the inlet for pressure fluid is connected at c and communicates through a boring l with the chamber 1 and by a pipe m with the chamber 2, so that the outer ends of the members e, f are always subject to the same pressure, whilst their inner ends are subject to brake cylinder pressure supplied to the chamber 3 through the passages b, n. If the piston f is raised, the slide valve also rises and pressure fluid is supplied from c to the brake cylinder until the consequent rise in pressure in the chamber 3 returns the slide valve to the neutral position shown, whilst when the slide valve is lowered, the brake cylinder exhausts through d until the fall in pressure in the chamber 3 allows the slide valve to rise to its normal position. In apparatus in which the brakes are applied by supplying pressure fluid to the brake cylinder, the chamber 3 is connected to atmosphere, the passages l, n are dispensed with, the pipe m is connected to the passage o, and the recess of the slide valve is bored through, so that the chambers 1, 2 are both connected to the brake cylinder. In this case also the inlet and outlet passages c, d are interchanged.
Patent GB-1394591-A (GB)
Title: Adaptor for machine tools
IPC: B23B39/20
Filed: 1972-02-29
Abstract: 1394591 Turrets S L MARTYN and R G MARTIN 23 Feb 1973 [29 Feb 1972] 9200/72 Heading B3C An adapter by which a single spindle machine may be converted to perform a sequence of operations with different tools comprises a rotatably mounted turret 10 housing a number of spindles 15, 16, 17, 18 and a mounting by which it can be positioned on a machine so that each spindle can be aligned with the machine spindle, each spindle having a release coupling by which it may be coupled to the machine spindle and uncoupled therefrom. The turret is rotatable on plate 12 about a pin 14. The plate is connected to a mounting 20 on a bar 22. In turn the bar is attached to a clamp 24 on a column C of a machine. A drive adapter 30 is connected to the machine spindle and has dogs 32 for engagement with similar teeth on a spindle. Also it has a pintle 38 for engagement with and axial movement of a retainer 42. This releases balls 40 and thus drive unit 34 and allows the spindle to move with adapter 30. During reverse movement rib 50 on the pintle moves balls 40 into grooves in bearing tube 36 and the spindle is looked in the turret.
Patent GB-1048870-A (GB)
Title: New reactive dyes containing thiadiazolyl groups
Inventor: BALL WERNER
IPC: C09B62/343
Filed: 1965-03-04
Abstract: The invention comprises reactive dyes, e.g. of the azo, anthraquinone and phthalocyanine series of the formula <FORM:1048870/C4-C5/1> wherein F is a dye radical which may contain -SO3H, -COOH or -CH2CH2OSO3H groups, Y is phenylene which may bear Cl and/or Br, Hal is Cl or Br and m is 1, 2 or 3, which may be obtained by condensation of a dye (or intermediate) containing 1-3 acylatable amino groups with a compound of the formula <FORM:1048870/C4-C5/2> wherein Z is a sulphonyl or carboxylic acid halide or an isocyanate radical and, when an intermediate has been used, completing the formation of the dye in the usual way.  The dyes are suitable for dyeing and printing textile materials of natural or regenerated cellulose, wool, silk, synthetic polyamides and polyurethanes and leather.  Examples are given and a number of water-soluble dyes are specified.
Patent GB-306738-A (GB)
Title: An improved process for the separation of the acid constituents from low temperaturetar or its fractions
IPC: C07C37/72
Filed: 1928-03-27
Abstract: 306,738. Bunge, C. March 27, 1928. Tar.-Acid constituents are separated from low temperature tar or its fractions by emulsification with water or gas liquor and treatment with a solvent, which, in the presence of a large amount of water, dissolves the acid constituents. Suitable solvents are alkali solutions, alcohol, acetone or mixtures of the two latter. The process may be carried out in two or more stages, and the formation of the emulsion is assisted by the addition of soap solution.
Patent GB-551496-A (GB)
Title: Improvements relating to screw-thread mechanisms and particularly vehicle steering mechanisms
IPC: B62D3/08
Filed: 1941-07-23
Abstract: 551,496. Screw-and-nut gearing. BURMAN & SONS, Ltd., BRIGGS, T. H., and BRIGGS, W. H. July 23, 1941, No. 9313. [Class 80 (iii)] Relates to screw-and-nut gearing and particularly to vehicle steering mechanism embodying such gearing which is of the kind wherein balls engage the threads of the screw and nut. A short shaft a secured to the steering shaft has a helical V-groove b. At one side.of this shaft is mounted a nut member d which subtends about one-half of the shaft and slides along a rod f. The nut member also has a helical groove e and opposite it is arranged a ball-retaining member g which subtends the remainder of the shaft, is secured by screws I to the member d, and is formed with an inclined groove h. The grooves e, h accommodate a ring of balls i. The groove h has its ends located immediately 'opposite the ends of the groove e and therefore crosses over the helix of the shaft a where its depth is increased to enable the balls to pass over the outer surface of the shaft. A lever j connected to the nut by a ball m and groove n actuates the rockshaft k. In a modification, two or more rings of balls are used, the nut member having two or more widely spaced grooves e. Specification 490,938 is referred to.
Patent GB-473183-A (GB)
Title: Improvements in light ray converters
IPC: H01J31/50
Filed: 1936-03-30
Abstract: 473,183. Image converters. AKAY ELECTRON CO. March 30, 1936, No. 9386. Convention date, March 30, 1935. [Classes 39 (i) and 40 (iii)] Relates to an image converter of the type comprising a photo-electric cell which includes a cathode having a coating capable under the action of light rays of emitting electrons, which by reason of a difference of potential between said cathode and an anode will be accelerated towards said anode to cause an emission of light rays from a coating on a face of said anode. According to the invention, the cathode and anode are arranged with the coated faces presented to each other in such spaced relationship that light rays may fall directly on the coated surface of the cathode to cause a first surface emission of electrons from said coated face. The device may be adapted for converting infrared or ultra-violet rays into visible rays and may be used in photography, automobile driving in fog, piloting aeroplanes in or above clouds and in protection against aeroplanes in war time. As shown, the device comprises a two part casing 10a, 10b in which the transparent bulb 11 of a photo -electric cell is mounted on rubber buffers 12. Within the bulb are mounted in parallel and symmetrical relationship, a cathode 14 and anode 13 with a grid 15 preferably interposed as shown. The casing is provided with a front lens 16, having an infra-red or other filter 18 disposed in front thereof, and an adjustable rear lens 21 surrounded by a hood 22 provided with a cushioning ring 23 adapted to fit the face of an observer around his eyes. The cathode 14 on the side facing the lens 16 is coated with a layer of material, e.g. caesium, responsive to the light rays focussed on it by the lens 16, the electrons emitted from this layer activating a layer of fluorescent material, e.g. zinc silicate, on the anode 13 so as to form an optical image thereon which can be viewed through the lens 21. If desired, two casings 10 may be mounted adjacent to one another in the form of a pair of spectacles, Fig. 2 (not shown). Reference has been directed by the Comptroller to Specification 444,998.
Patent GB-238269-A (GB)
Title: Improvements in talking machines and the like
IPC: G11B25/04
Filed: 1924-04-14
Abstract: 238,269. Columbia Graphophone Co., Ltd., and Mitchell, F. A. April 14, 1924. Cases.-In a talking machine of the type which can be partly collapsed to a smaller bulk when closed, the horn a forms a complete unit free from the motor board f and is pivoted at m to the case, below the motor board, so that the horn and the tone-arm b can be lowered to the position shown in Fig. 2 without changing the shape of the horn. The horn may be connected by a link g<1> to the lid of the case so that it is raised and lowered by movement of the lid, and a spring catch l or other device holds the horn in raised position. Shutters k, pivoted at the opening in the case, are linked to the horn and are closed, when the horn is lowered, by a pin a<1> on the horn acting on a pivoted lever i. The lever may be returned by a spring i<2> to open the shutters. The horn is curved to pass round the motor d without touching it at any point.
Patent GB-590432-A (GB)
Title: Improvements in the production of chlorine dioxide
IPC: C01B11/02
Filed: 1945-04-16
Abstract: In the production of chlorine dioxide by passing, under pressure, chlorine gas and an inert diluent gas to a mixing zone and passing the mixture in contact with a chlorite, the chlorine supply line is maintained open to the flow of chlorine by means of pressure of the diluent exerted in opposition to a constantly applied mechanical force tending to close the supply line, the force being such as to stop the supply of chlorine should the pressure of the diluent fall below a predetermined value.  In the apparatus shown in Fig. 1 chlorine gas under pressure is passed through filters and control valves to a meter device, such as a capillary flow meter (see Group XX) indicated at 30, and thence through a flow-control valve 37 (see Group XXIX) which is connected through lines 47 and 49 to a high pressure air line 43 and a chlorine-air mixing line 17 leading to the reaction chambers.  Air, preferably dry and under high pressure, is supplied by way of line 39, driers 41, control valves 44 and 46 to mix with the chlorine in line 17.  The flow of both air and chlorine may be automatically regulated by valves 46 and 46a.  Two reaction chambers 1 and 2 are provided with valve controlled inlets 3 and 4, exist lines 5 and 6 and lines 11 and 12 connecting alternate inlet and exit lines.  The chlorine dioxide and air mixture issuing from the reaction chambers passes through line 18 to a gas manifold 51, where it is led through a plurality of valve controlled lines 52, flow meters 53 and lines 54 to the various treating operations.  When it is desired to further dilute the chlorine dioxide-air mixture prior to use, air is led from line 43 through a by-pass comprising valve controlled lines to a manifold 62, where it is directed <PICT:0590432/III/1> through valve-controlled lines 63 to the gaseous mixture in lines 54.  All parts of the apparatus that come in contact with chlorine and chlorine dioxide are desirably constructed of non-corrosive material, such as silver, corrosion resistant alloy e.g. "Hastelloy-C" (Registered Trade Mark), glass, stoneware or plastics e.g. "Saran."  The Specification describes the use of a reaction chamber which is the subject-matter of Specification 590,450.  Specification 564,162 also is referred to.
Patent GB-788514-A (GB)
Title: Improvements relating to electro-magnetic vibrators
IPC: B06B1/14
Filed: 1955-03-31
Abstract: 788,514. Screw fastenings. CARTER A. C., and PLOWMAN, J. M. March 29, 1956 [March 31, 1955], No. 9455/55. Class 44 [Also in Groups V, X and XXXV] An electromagnetic vibrator for concrete shuttering 26 has a tube 3 secured to its armatures 11 and arranged to be secured on any one of a number of pins 29 projecting from the shuttering by means of a lock-nut 33. The two E-shaped magnet cones 12 and, coil are secured to the casing around the tube, which is sealed to the casing by disc-springs 5, 6. A plurality of U-shaped electromagnets, arranged radially. may be used.
Patent GB-493200-A (GB)
Title: Method of and means for ventilating toilet fixtures
IPC: E03D9/052
Filed: 1937-04-03
Abstract: 493,200. Retractive switches ; mercury switches. FRANCIS, E. L. (Churchill, S. H.) April 3, 1937, No. 9510. [Class 38 (v)] [Also in Group X] The fan motor of a fan extracting air from a toilet fixture is in a circuit including a switch which is closed by the weight of a person sitting on the seat 12. The switch comprises a shell 32 of insulating material having a flange 33 screwed to the seat, the shell being embedded in the seat, and having two electrodes 34 connected by leads 35 with the fan motor. An annular plunger 36 is pressed upwardly against a coiled spring 38 by a block 47, when weight is applied to the seat 12, and a contact bar 37 presses the electrodes 34 and completes the fan motor circuit, the coiled spring breaking the circuit when the seat is unloaded. A metal cover plate 41 connected to an earth wire, encloses the assembly which includes a rubber diaphragm 40 to exclude moisture. A switch operating with a time lag to cut off the fan motor a certain time after the closet is used, comprises a tiltable tube 70, Fig. 9a, containing mercury, and provided with contacts 71 for making and breaking the motor circuit. A flap 74 with a byepass part 75 is pivotally mounted across the tube, and swings freely when the tube is tilted to the " on " position, but is held when the tube is tilted to the " off " position, the mercury returning slowly through the port 75. The tube is fitted in a rectangular recess 73 in the seat which is carried by springs 77, which normally lift the seat away from the bowl, a finger 81 rigidly secured to a fixed hinge pin 78 tilting the tube 70 when the seat is occupied to complete the fan circuit. In a modification, a light-sensitive cell 92, Fig. 3, is influenced by a beam 93 from a light source 94 so that when the beam is interrupted by the body of a person on the seat, the air fan 29 will be operated.
Patent GB-236676-A (GB)
Title: Improvements in or relating to blowpipe machines for cutting metal
IPC: B23K7/00
Filed: 1924-04-15
Abstract: 236,676. Hancock, L. J., and Hancock & Co. (Engineers), Ltd. April 15, 1924. Perforating and dividing by fusion. - In a blow-pipe machine for cutting metal of a type such as is described in Specification 226,846, in which the speed and direction of movement of the blowpipe are determined by a tracer wheel free to move in a plane, the direction of the tracer wheel axis is determined automatically instead of by hand. The tracer wheel 1, which is driven by gearing from a motor 8 carried by one arm 3 of a jointed bifurcated lever, the other arm of which carries the blowpipe, is mounted in a forked bearing 13 rotatably mounted in a member 4 which is slidable in a member 5 movable on a fixed pivot 6. The member 4 carries a cam 9 which is of shape corresponding to the design to be cut and is rotated by worm gear 18 and telescopic shaft 17 or flexible shaft and bevel and spiral gear 16, 15 from the motor 8. The cam operates a rack 10 engaging a pinion 12 on the bearing so as to control the direction of the wheel 1. Chain and sprocket gear may be used for this purpose. The member 4 is moved relatively to the member 5 by a cam 19, which is mounted on the member 5 and is driven by bevel gear 23, 20 and telescopic-shaft 21 from the shaft of the cam 9. Alternatively the members 4 and 5 as a whole may be moved, th.e cam 19 in this case being mounted on a spindle fixed relatively to the pivot 6 and the cam roll 24 being carried by the member 5.
Patent GB-560839-A (GB)
Title: Improvements in the desulphurisation of mineral oils
IPC: C10G17/02
Filed: 1941-07-28
Abstract: 560,839. Purifying mineral oils. STANDARD OIL DEVELOPMENT CO. July 28, 1941, No. 9551. Convention date, Aug. 4, 1940. [Class 91] In the sweetening of mineral oils by means of a copper reagent to precipitate the harmful sulphur compounds or to render them innocuous, the bulk of the copper solution being thereafter removed, the remaining smallquantity of copper. compounds is removed or rendered harmless by treating the oil with a relatively, small quantity of an organic aminoacid having the nitrogen atom of an amino group linked to the carbon atom of a carboxyl group through one or two intervening carbon atoms. Deterioration of the stored oil due to copper catalysis is thus obviated. Compounds specified comprise anthranilic acid, glycine, and oxanilic acid. The copper complex formed may be soluble or insoluble in the oil, and in the latter case may be removed. The oils treated are preferably petroleum oils boiling in the motor fuel, kerosene, and gas oil boiling range. In example, an acid treated, re-distilled and doctor sweetened, cracked naphtha is treated with copper napnthenates and thereafter with anthranilic acid in crystalline form or dissolved, in benzene or in isopropyl alcohol.