baber/WOPTO huggingface dataset:
Patent GB-575529-A (GB)
Title: Novel or improved machine for use in forming a radius or radii on the outer end of a drill or like tool
IPC: B24B3/24
Filed: 1944-03-22
Abstract: 575,529. Sharpening drills. SEARCHLIGHT, Ltd., and DARBY, A. March 22, 1944, No. 5301. [Class 60] An appliance for use with a grinding machine for grinding radii on the cutting end of a drill comprises a cradle in which the drill is clamped, and which can be rocked about a horizontal axis, and is mounted in a carriage which can be swung about a vertical axis coincident with the centre of the desired radius. The appliance comprises a bed 10 which can be clamped to the cross slide of a grinding-machine and is furnished with a stud 11 engaging a bush 12 in the carriage 13. A pillar 14 extends from one side of the bed having an arm 15 in which is a sleeve 16 on which is a bush 19 on a pillar 17 on the carriage; by these means the carriage can be swung about the axis of the stud 11 and sleeve 16. The cradle 20, of half round section, is mounted on the carriage in bearings 19 and is formed with a recess to receive a bar 46 having a groove 21 in which the tool 22 is clamped by a pivoted screw-operated bearing piece 25, an arm 27 carrying the screw being provided with a lug 28 engaging a tooth 30 on an arm 31 pivoted to the cradle ; the arm 31 can be disengaged by means of a finger 31b. The drill is rocked about its axis as the radius is being formed to preserve the cutting angle at the tool edge, by means of a bar 34 bearing down on one side of the cradle against a spring 35 attached to a lever 37, the bar being pivoted to a lever 38 pivoted to a fixed pillar 39 and having a pin 40 engaging a fixed cam slot 41. The cradle is connected at its ends to links 43 pivoted to arms 44 on a rod 45 movable endwise through the bearings 19. The inner end of the lever 37 turns on the rod 45 and has an upward extension which engages in a slot 20a on the underside of the cradle and moves therewith. The lever engages a notch 47 in a plate 48 supported from the carriage at one end by a pin 49 engaging a slot 50, and at the other by an eccentric 51 by means of which the cradle can be adjusted endwise. The tool -is adjusted lengthwise by a poppet 54 operated by a screw 55 passing through a screwed sleeve 55a clamped by a screw 58. The swinging movement of the carriage is limited by a screwed rod 65, with an adjustable stop 67, pivoted to the pillar 14 and passing through a post 66 on the pillar 17. In order to form radial portions at the two sides of a flat portion, the front of the carriage is offset in relation to the pivot axis. For this purpose the carriage is divided and the upper part 13a has two screwed studs the rear stud 68a passing through a clearance hole in the lower part 13b while the forward stud 68 passes through a transverse slot whereby the parts may be swung relatively to one another about the stud 68a. The wheel is trued by a diamond 58 carried by a cranked member 60 mounted in the sleeve 16 and retained in an inoperative position by a handle 61 engaging a lateral projection 62.
Patent GB-608339-A (GB)
Title: Attachment for a sine-bar
IPC: G01B5/24
Filed: 1946-02-20
Abstract: 608,339. Sine bars. MOORE, G. E., and BRISCOE, E. Feb. 20, 1946, No. 5325. [Class 97 (iii)] An accurately machined block b with two parallel faces c, d, a third face e at right angles to the parallel faces, and a fourth face f at an acute angle, e.g. 45 degrees, to the parallel may be clamped to a sine bar a with any one of its faces in contact with the upper face of the sine bar. The clamp j may have claws, engaging grooves g in each side of the block b and a bandle l for operating a clamping cam. An auxiliary straight edge of substantial length may be clamped against any of the free faces of the block b. The cylindrical rollers of the sine bar are secured by studs u and spherical nuts v, the ends of the cylinders being then closed by dished discs.
Patent GB-497897-A (GB)
Title: A plotting instrument and scales for use in navigation
Filed: 1938-02-21
Abstract: 497,897. Navigational plotting-instruments. FREYNE, H. Feb. 21, 1938, No. 5352. Convention date, Dec. 15, 1937. [Class 97 (iii)] For determining the centre of a circle at the circumference of which a given chord subtends a given angle, the triangular upper portion of the instrument shown is provided with a series of equally spaced lines parallel to the base MN. The lines are in groups marked A, B, &c. and each group contains a set of differently coloured lines a, b, &c. In use, the instrument is moved until one of the lines, identifiable by its group marking and colour coincides with the chord on a chart between two observed objects. A tabular scale is provided from which may be read off for each line and for any given angle, e.g. the angle between the objects as observed by a sextant, the distance of the centre of the desired circle along the right bisector 1, 2 of the chord. A set of scales in book form is described.
Patent GB-213397-A (GB)
Title: Improvements in oil burner
IPC: F23D11/04
Filed: 1923-02-24
Abstract: 213,397. Hurd, B. W. Feb. 24, 1923. Spray burners. - The hub 10 of a rotary atomizer cup 5 is mounted in ball bearings 11, 12 in a frame 6 which is formed with fingers removably secured by screws 8 to the intermediate section 2 of the burner nozzle A. The nozzle A comprises a base section 1, an intermediate section 2, and a top section 3, all detachably secured together. Air under pressure supplied to the base section 1 passes through a stationary radially slotted air deflector 25 and strikes against the radially slotted periphery 24 of a rotor 22 secured to the hub 10 and thereby rotates the cup 5. The fuel oil is fed to the cup 5 by a pipe 27 passing through the hub 10. A conical deflector plate 28 secured to the cup 5 by bending over its legs 31 has an inturned portion 29 projecting into the discharge end of the pipe 27 to cause the fuel to be distributed uniformly over the wall of the cup. The bearings 10, 11 are separated by a spacer 17 and are supplied with lubricant through a hole 34 in one of the fingers 7.
Patent GB-1030401-A (GB)
Title: Improvements in or relating to safety razor blades
Inventor: HANSOM BERNARD STEPHEN
IPC: B21D53/64
Filed: 1962-02-13
Abstract: 1,030,401. Producing razor blades; grinding blades. WILKINSON SWORD Ltd. Feb. 5, 1963 [Feb. 13, 1962], No. 5433/62. Headings B3A and B3D. Wafer type razor blades, each having a cutting edge formed by a single bevelled surface, are provided with cutting edges by clamping a number of blades together in a pack with their faces at an angle to the longitudinal axis of the pack, and their removing metal from the outer surface of the pack. The angle of inclination is between 15 and 75 degrees, but preferably is close to 45 degrees. The metal can be removed by grinding and/or honing, or by electro-etching, spark erosion, or electrolytic action.
Patent GB-1260748-A (GB)
Title: Buffing member
Inventor: HALL ELISHA WINTHROP JR
IPC: B24D13/08
Filed: 1969-01-31
Abstract: 1,260,748. Buffing member. F. L. and J. C. CODMAN CO. 31 Jan., 1969, No. 5468/69. Heading B3D. [Also in Divisions C4-C5] A buffing member, Fig. 1, comprises a multiplicity of thin flexible elements 12, adapted to wipe across a workpiece, each element comprising a sheet member consisting of a fibrous mesh, a synthetic resinous elastomeric substance permanently bonded in and to the mesh, and a distribution of a fine abrasive substance permanently bonded to the mesh by the elastomeric substance. As shown, the elements 12 are annular and have pleats 18. The fibrous mesh may be a flexible fibreglass mesh and the synthetic resinous substance preferably comprises a mixture of preformed elastomeric foam particles, e.g. polyurethane foam, and an unfoamed elastomeric bonding agent, e.g. a polyurethane resin optionally mixed with an epoxy formulation. In one method of making the material for the elements 12, a fibrous mesh 24, Fig. 5, is coated with a synthetic resinous elastomeric bonding agent 29 by a roller 36. An abrasive substance 41 comprising resilient foam members with abrasive grains bonded thereto is applied to the coated mesh 24 from a hopper 45, and excess abrasive substance removed by a blower 42. The coated mesh is then compressed between rollers 48, 49, cured and compressed between belt 51 and heated drum 50, and fully cured by heated drum 52.
Patent GB-582251-A (GB)
Title: Improvements relating to the measurement of power losses in electrical insulating materials
IPC: G01R21/00
Filed: 1944-03-24
Abstract: 582,251. Power-factor measurements. FLEMING, J. M. March 24, 1844, No. 5505. [Class 37] Apparatus for the measurement of power loss in electrical insulating materials comprises a dynatron oscillator provided with a pair of test electrodes in its anode circuit and a current meter in the cathode circuit. Means are provided for adjustment to the point of oscillation, which is indicated by a neon discharge tube in the output circuit of a gas discharge relay connected across the test electrodes. The test piece is placed between electrodes 1, 2 connected across the inductance L and adjustable condenser C in the anode circuit of the dynatron valve D. Adjustable grid bias is derived from a potentiometer 5 and battery 4, the cathode current being measured by a meter MA provided with shunts 10. Commencement of oscillations in the circuit L, C, causes the gas discharge relay T to strike and energise the neon indicator tube N, the cathode bias of the relay T being adjustable by means of a potentiometer 16 in series with a resistance 15 across the H.T. supply. A wavemeter comprising the inductance L1 coupled to the inductance L, the condensers C1, C2, and cathode-ray indicator tube E is provided for adjustment of the test circuit L, C, to a standard frequency. The apparatus may be re-set by means of a push-button switch 19 which detunes the wavemeter by opening the contacts 19 and also opens contacts 18 in the anode circuit of the tube T. The meter MA may be calibrated in terms of the power-factor of the test piece, and may be provided with an adjustable scale to allow of the zero being re-set. It may be protected by a short-circuiting switch (not shown). When testing material of constant dielectric constant, the dial of the condenser C may be calibrated in terms of the thickness of the material, or with a correction factor for the power-factor to allow for varying thickness of the test pieces. Specifications 15,555/15 and 150,359, [both in Class 39 (i)], are referred to.
Patent GB-511690-A (GB)
Title: Process for making coloured photographic material
IPC: G03C1/825
Filed: 1938-02-22
Abstract: 511,690. Coloured photographic materials. SOC. OF CHEMICAL INDUSTRY IN BASLE. Feb. 22, 1938, Nos. 5552 and 5553. Convention dates, Feb. 23, 1937 and Feb. 3, 1938. [Class 98 (ii)] Photographic material, e.g., light sensitive silver halide emulsions, filter layers, or antihalation layers are coloured by incorporating therein a water-soluble and hydrolyzable derivative of a water-insoluble dye which contains at least one salt-forming group but which does not form salts stable to water with either hydrochloric and or caustic soda lye, the derivative having attached to the salt forming group an acyl radical containing a substituent promoting water solubility, and treating the material with a saponifying agent which splits the water soluble derivative. Suitable dyes are azo dyes and hydroxyl derivatives of insoluble anthraquinone, azine, oxazine, thiazine, arylmethane and pyrone dyes. The salt forming group may also be an NH2 or NH group, e.g., the condensation products of cyanuric chloride with amine which contain chromophoric groups. The derivatives may be formed by reaction with halides of alpihatic, cyclo-aliphatic, aliphaticaromatic or aromatic di- or poly-carboxlic acid halides or -sulphonic acid halides such as sulphoacetyl chloride, sulpho furane-carboxylic acid chloride, sulphobenzoyl chloride, benzoic acid sulphochlorides, benzenehexacarboxylic acid di- and trichloride, naphthalene trisulphochloride and reaction products of sulphur trioxide on benzoyl chloride or chlorosulphonic acid on benzoic acid. The substituent promoting watersolubility may be a carbonyl or sulphonic acid group or hydroxyl groups in organic acids or polyhydric phenols. The saponifying agent may be an acid or alkaline solution of salts or an acid or base and may be effected at any stage in the preparation or treatment of the material. The resulting material may be used for colour photography especially for the processes in which dye is destroyed at the places of the silver image. Seven examples of the use of suitable dyestuffs are given. Specifications 480,358, 496,463 and 505,504, [all in Group IV], are referred to.
Patent GB-124212-A (GB)
Title: Improvements in Sparking Plugs for Internal Combustion Engines.
Inventor: GINO REDINI
IPC: H01T13/16
Filed: 1919-03-07
Abstract: 124,212. Redini, G. March 7, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Sparking-plugs.-The plug casing is provided with apertures 1<a>, 1<b> to allow air to circulate about the central electrode. The inner part 5 of the. insulation is of refractory material such as porcelain or steatite, but the outer portion 7 may be of any material. The two parts are conically seated in the casing, and are drawn together by the nut 3. A nickel terminal 2<1> may be screwed into the end of the central electrode.
Patent GB-813102-A (GB)
Title: Improvements in or relating to a heating apparatus
IPC: F24H3/00
Filed: 1955-07-27
Abstract: 813,102. Generating combustion products under pressure. HI-RO HEATING CORPORATION. July 27, 1955 [Aug. 4, 1954], No. 5724/57. Divided out of 813,101. Class 51 (1). [Also in Groups XIII and XL (b)] An air or other heater, Fig. 1, comprises a combustion chamber 140 which has a burner 142 at one end and at the other an air discharge passage 167 which directs combustion air along the inside of the thin heat-transmitting wall of the combustion chamber as an envelope which surrounds and is concentric with the flame from the burner. The combustion chamber wall has an extension 141 which surrounds two walls 148, 152 forming the air passage 167, which is annular, inside an annular flue. The air escapes through outlets 153, and the flue gases through intermediate gaps 154. The end of the inner wall 152 has a window 193 associated with a photo-electric cell 157 which operates a shutdown device if the flame fails. The walls 141, 148, 152 have longitudinal corrugations. The combustion chamber and its extension are supported by yokes 160, 162 in an outer cylindrical casing 159 which encloses an annular air passage (see Group XIII). In a modification (Fig. 20, not shown) the extension of the combustion chamber wall has a smaller diameter than the latter, and both the extension and the outer wall of the combustion air passage are spirally corrugated while the inner wall of that passage is uncorrugated. Another form of heater, Fig. 26, comprises a combustion chamber 314 of crescent-shaped cross-section located within an air conduit 324. A flue 313 of similar but smaller cross-section extends into the open end of the chamber 314, and air for combustion flows between them from the conduit. One or more burners such as 316 at the other end receive liquid fuel from a pipe 319 in a conduit 320 supplying coolant air to the burners. In an infra-red heater, Fig. 28, a fan 345 supplies combustion air to an annular passage 342 surrounding an annular flue 344 at the end of the combustion chamber 340 opposite to the spray burner 348. An insulated reflector hood 341 is provided. The heater may use pulverized or gaseous fuel.
Patent GB-525243-A (GB)
Title: Radio frequency multipactor amplifier
IPC: H01J25/76
Filed: 1939-02-21
Abstract: 525,243. Electron multipliers; cathode ray tubes; photo-electric cells ; and modulating circuits therefor. FARNSWORTH TELEVISION, Inc. Feb. 21, 1939, No. 5738. Convention date, Feb. 21, 1938. [Classes 39 (i) and 40 (v)] Apparatus for amplifying a carrier wave by means of secondary emission comprises a perforated secondarily-emissive electrode 27 enclosing an accelerating anode 30, which is formed as a helical grid or is otherwise permeable to electrons, and enclosed in a collecting anode 25. The electrodes 27, 30 are connected to the terminals of the secondary 36 of a transformer, the primary 35 of which is traversed by the carrier wave current, the electrode 30 being given a positive bias by a battery 40, a blocking condenser 39 being provided between the battery and the transformer and a tuning condenser 37 being provided. When the electrode 30 is' at its lowest potential electrons liberated from the electrode 27 pass direct to the anode 25, but when the electrode is at a higher potential the electrons pass through it and return to the electrode 27 to a further multiplier. The carrier wave is modulated by regulating the number of primary electrons inside the electrode 27. This can be effected by means of an electron gun having a cathode 7, a ring- shaped electron 12 to which the modulating potentials are applied, and an anode 17. Alternatively, the surface of the electrode 27 may be photo sensitive and electrons be liberated therefrom by a modulated light signal.
Patent GB-417760-A (GB)
Title: Improvements in or relating to flexible shaft couplings
IPC: F16D3/56
Filed: 1934-02-21
Abstract: 417,760. Flexible shaft - couplings. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES., 7, Stadtbachstrasse, Augsburg, Germany. Feb. 21, 1934, Nos. 5760 and 5761. Convention dates, Feb. 27, 1933 and March 24, 1933. [Class 80 (ii).] In a flexible shaft-coupling in which a sleeve 2 that surrounds a driving shaft 1 is connected to a driven shaft and in which sleeve springs 5 are inserted in common longitudinal borings 4, the compression of the springs is limited by a core 7 fixed in each boring and having an inwardly directed rib 8 which is secured in a recess 9 in a cover 10 fixed to the sleeve 2. The flexibility of the coupling may be altered either by varying the number of sleeve springs in each boring, by varying the number of sleeves in each spring, or by inserting between the driving and driven shafts one or more concentric sleeves, which are connected with each other and with the driving and driven shafts by sleeve springs. The coupling may be enclosed so that the sleeve springs work in an oil bath.
Patent GB-854329-A (GB)
Title: Improvements in or relating to coolant distributors for turret and like rotatable tool holders for machine tools
IPC: B23Q11/10
Filed: 1958-02-21
Abstract: 854,329. Machine-tool details. MEK-ELEK ENGINEERING Ltd., and COOPER, H. C. May 20, 1959 [Feb. 21, 1958; Dec. 16, 1958], Nos. 5783/58 and 40578/58. Class 83 (3). A coolant-distributer for a rotatable tool - holder for a machine-tool, such as an indexible lathe tool-turret 10, Fig. 1, comprises a distributerbody 32 rotatable with the toolholder, and from which pipes direct coolant on to the tools near their cutting ends. In one arrangement a channelmember 16, Fig. 1, is secured to pneumatic clamping-covers 11, 12, for the work-holder, which are non-rotatable. A pillar 17 integral with the channel-member has a boss with a collar 31 around which the distributer body rotates. The distributer is divided by partitions 33 into a number of containers corresponding to the number of toolstations, and from the base of each container a pipe is secured in a tapped hole 39 or over a short extension 9, and carried to a tool on the work-holder. The distributer is rotated in unison with the tool turret 10 by a member 38 secured to the latter engaging a projection 36 from the distributer. A main coolant supply is delivered through a nozzle 47, which is supported in a ring-member 44 rotatable through a limited angle. The container-sections of the distributer are brought successively under the nozzle 47, so that fluid is supplied to the required tool. A handle 121, Fig. 2, and latchdevice 119 enables the nozzle 47 to be turned to an adjacent container when the operator wishes to examine the working-tool. A transverse member 51 secured to the retaining-sleeve 48 is anchored to a part of the machine, such as the turret slide, to prevent inadvertent rotation of this part. A union 30 connected to the top of the pillar 17 conveys pressure-air to the turret-clamping member 12. In a second arrangement, the distributer 76, Fig. 4, is carried by a pillar 17, similar to the first arrangement, but the containers are omitted, and a series of holes 78 communicate with supply-unions 84 for the tool-stations. The holes 78 are brought successively into register with a single supply-orifice 79 in a closure-plate 75. The latter is capable of limited rotation as above, to switch the supply. A further embodiment is described for turrets with a hand clamping arrangement.
Patent GB-212569-A (GB)
Title: Manufacture of 4-oxynaphthalene-1-arylketones
IPC: C07C45/00
Filed: 1924-03-06
Abstract: 4-Oxynaphthalene-1-arylketones are obtained by the interaction of at least one molecular proportion of an arylchloroform (such as phenylchloroform) and one molecular proportion of a-naphthol in presence of a diluent such as sulphuric acid, nitrobenzene, or an excess of the arylchloroform; condensing agents such as metals, metal salts or oxides, or non-metals, such as phosphorus, or their oxides, oxyhalides and halides may be present.  In some cases a keto-chloride is first formed and is then converted to the ketone.  In examples 4-oxynaphthalene-1-phenylketone is obtained by condensing phenylchloroform with a -naphthol, either in sulphuric acid, or in nitrobenzene in the presence of zinc oxide; the ketone is isolated by boiling with sodium carbonate, filtering, and acidifying.  Other arylchloroforms specified are o-, m-, and p-chlorphenylchloroform and 1-chlor-2-naphthylchloroform.
Patent GB-846089-A (GB)
Title: Improvements in or relating to cash registers and other adding machines
IPC: G06C11/02
Filed: 1956-02-24
Abstract: 846,089. Cash registers. GROSS, H., and GROSS, S. Jan. 18, 1957 [Feb. 24, 1956], No. 5802/56. Class 106 (1). In a key-set-and-operated cash register, a member is provided to arrest any operated key levers before the completion of their operative and return movement, thereby indicating to the operator which keys were operated, and release means are manually operable to permit the completion of the movement. In one arrangement, Fig. 1, a pawl 20 engages over one of the arms 15 carrying the key-coupler bar 14 to prevent its full restoration, and a release key 26 or push-button withdraws the pawl to an ineffective position. In another arrangement, Fig. 2, the key-coupler bar is arrested during its downward movement by a pawl 201 and depression of the release key 26 first, by its end 33, cams the pawl 20<SP>1</SP> to an ineffective position and then, whilst maintaining the pawl ineffective, engages the keycoupler bar 14 to complete its movement. A pawl 31 and notched plate 30 ensure a full stroke. Alternatively, a push-button may render the pawl 20<SP>1</SP> ineffective and may be latched down until the keys are fully depressed. The release of the partially depressed keys may be effected by closure of a cash drawer instead of by a special key.