baber/WOPTO huggingface dataset:
Patent GB-580339-A (GB)
Title: Improvements in or relating to linear dimension gauges
IPC: G01B3/38
Filed: 1944-07-03
Abstract: 580,339. Linear - dimension gauges. NEWALL ENGINEERING CO., Ltd., and SUMMERS, K. E. July 3, 1944, No. 12660. [Class 106 (ii)] In a linear-dimension gauge of the type having roller contact elements, the rollers are freely rotatable and are supported by the engagement of their outer surfaces with recesses in the frame. In the form described, two rollers 7, 8 are journalled in part-cylindrical recesses 5, 6 in a jaw 3 held by a frame 1 while two co-operating rollers 12, 13 are journalled in similar recesses 14, 15 in blocks 16, 17 formed with shanks, adjustably and independently supported in a second jaw 4 in a known manner. The outer rollers 7, 12 are screw-threaded throughout while the inner rollers 8, 13 are screw-threaded for only a few turns near one end and the remainder forms a cylindrical stem of reduced diameter, the bearing surfaces 6, 15 being formed with diameters appropriate to receive the rollers. One end of each of the four rollers is formed with reduced diameter so that it can be located longitudinally by a retaining plate 21 abutting against the shoulder so formed and being held in contact against a light spring washer 24 by a circlip 23 or by a retaining cap. The invention may be embodied in gauges having only one gap and also in gauges with rollers in the form of plain cylinders. Specifications 193,227 and 214,081, [both in Class 116 (ii)], are referred to:
Patent GB-439278-A (GB)
Title: Improvements in and relating to exhalation valves for gas protection masks
IPC: F16K15/14
Filed: 1935-04-27
Abstract: 439,278. Non-return valves. HORAK, J., 6, Pevnostni, Stresovice, Prague. April 27, 1935, No. 12679. Convention date, April 27, 1934. [Class 135] An exhalation valve for gas protection masks comprising a rubber or other elastic diaphragm 3 secured at its periphery and restrained at its middle part has the edge 10 of the valve seat located out of the plane of the peripheral securing point and the middle restraining point so that in the closed position the diaphragm is positively bent under tension. The diaphragm 3, is clamped between two members 2, 4. The member 2 is formed with the exhaling tube 21 against the end 10 of which the diaphragm seats, and also with air outlet apertures 6. The upper member 4 has a vent aperture 5 and a peg 4<1> restraining the diaphragm centrally. In a modification, air holes are formed in the diaphragm outside the tube 2<1> and the holes 6 are then located in the member 4. A further modification has an annular diaphragm and an annular passage for the exhaled air. The diaphragm is clamped at its inner and outer edges between annular members, into the upper of which a filter is screwed, and the lower of which has a seat projecting above the plane of the inner and outer securing points of the diaphragm.
Patent GB-353932-A (GB)
Title: Manufacture of anthraquinone derivatives
IPC: C09B1/503
Filed: 1930-04-24
Abstract: Anthraquinone derivatives are made by heating a leuco-derivative of an a -oxyanthraquinone or an a -oxyaminoanthraquinone, or a sulphonic acid thereof, or a derivative of any of these compounds, in aqueous solution or suspension and in presence of boric acid, with ammonia or a primary aliphatic or araliphatic amine and, if required, oxidizing the product.  The production of the leuco-anthraquinone and the condensation may be combined into one operation and any sulphonic groups in the b -position may be wholly or partially eliminated. Oxidation may also take place simultaneously with the condensation. In examples, (1) sodium 1 : 5-dioxy-4 : 8-diaminoanthraquinone-2 : 6-disulphonate, hydrosulphite, and boric acid are heated with aqueous ammonia; the product, probably 1-oxy-4 : 5 : 8-triaminoanthraquinone in sulphite cellulose dispersion (cf. Specification 263,579, [Class 2 (iii), Dyes &c.],) dyes acetate silk in blue tints; (2) sodium 1 : 8-dioxy-4 : 5-diaminoanthraquinone-2 : 7-disulphonate is similarly condensed with dimethylamine; the 1 : 8-diamino-4-oxy-5-methylaminoanthraquinone obtained dyes acetate silk greenish-blue; b -oxyethylamine, ethylenediamine, ammonia or benzylamine may be similarly used; (3) leuco-1 : 4 : 5 : 8-tetraoxyanthraquinone is heated with b -oxyethylamine and boric acid with access of air; the product dyes acetate silk in blue-green tints; (4) leuco-1 : 5-dioxy-4 : 8-diaminoanthraquinone is heated in a closed vessel with aqueous methylamine and boric acid; the product dyes acetate silk green-blue.  Specification 338,412, [Class 2 (iii), Dyes &c.], also is referred to.
Patent GB-1075233-A (GB)
Title: Improvements in or relating to the production of uranyl fluoride
Inventor: GRANT ALBERT EDGAR
IPC: G21C19/44
Filed: 1964-03-26
Abstract: Uranyl fluoride powder is prepared by introducing gaseous UF6 into a mixture of liquid HF and water of composition such that substantially all the uranium is precipitated as uranyl fluoride, e.g. at least 80% HF.  The UF6 vapour may be dispersed with nitrogen in counter flow to the HF solution in a packed tower, or contacted with the acid in a stirred vessel. After removal of UO2F2.xH2O crystals the residual acid of strength 100% is combined with HF/water azeotrope to reform the starting acid.  The uranyl fluoride may be reacted (a) with steam to form uranium trioxide, (b) with steam and hydrogen in a fluidized bed to form uranium dioxide.
Patent GB-1350401-A (GB)
Title: Power hammers
IPC: B25D16/00
Filed: 1971-05-04
Abstract: 1350401 Percussive tools ROCKWELL INTERNATIONAL CORP 4 May 1971 [5 May 1970] 12862/71 Heading B4C A percussive device includes a tool holder 32 intermittently and unidirectionally rotated and impacted in use by an impacting mechanism 26 reciprocated by a motor 22 via a crank arrangement. Reciprocation of the mechanism 26 effects via meshing helical splines oscillation of a sleeve 90<SP>1</SP> having secured thereto an annulus 144<SP>1</SP> and having mounted thereon Belville washers 150A, 150B and a collar 148<SP>1</SP>. Ratchet teeth on the collar engage with ratchet teeth on a rotatable member 129<SP>1</SP> connected by splines to the tool holder. Rotation of the collar in one direction causes rotation of the member 129<SP>1</SP> and the holder 32, and rotation of the collar in the other direction effects displacement of the sleeve 90<SP>1</SP> against bias of spring 180. If rotation of the holder in the one direction is prevented by jamming of a tool bit, the collar will slip relative to the annulus 144<SP>1</SP>. Rotation of the tool holder may occur on either the impact stroke or the return stroke of mechanism 26, although rotation on the impact stroke is preferred. The mechanism 26 includes a sleeve 104 and a hammer piston 30. Cushioning of the piston is achieved by air trapped in spaces 112, 113 on the piston head 102 passing respectively the rearmost and forwardmost edges of the openings 110. Excessive forward travel of the tool holder is cushioned by a resilient ring 126. Selection of one of two forms of tool bit (Figs. 2 and 3, not shown) can without modification of the device condition the latter for rotary/percussion or pure percussion.
Patent GB-276417-A (GB)
Title: Liquid coating compositions
IPC: C08L61/10
Filed: 1926-05-20
Abstract: 276,417. Marks, E. C. R., (Bakelite Corporation). May 20, 1926. Coating-compositions capable of being hardened by heating comprise a phenolic resin, an aqueous alkaline solvent, and an aldehydic hardening agent which is either a liquid capable of acting as a diluent or a substance of higher molecular weight than formaldehyde and less reactive than either formaldehyde or hexamethylenetetramine. An example of a hardening-agent fulfilling both these conditions is furfural, which may be used with or without other known hardening agents.
Patent GB-550736-A (GB)
Title: Controlling the temperature of superheated steam or other vapour
IPC: F22G5/16
Filed: 1941-10-10
Abstract: 550,736. Steam superheaters. FOSTER WHEELER, Ltd. Oct. 10, 1941, No. 13084. Convention date, Oct. 11, 1940. [Classes 123 (ii) and 123 (iii)] Steam from a boiler drum 10 passes on its way to a superheater 19 through a chamber 20 containing a condensing coil 23 through which circulates feedwater under the control of a valve 49 operated in accordance with the temperature of the steam in the outlet pipe 28 of the superheater. The condensate flows into the superheater. The valve 49 is actuated through a sylphon controlled fluid-pressure relay 40, and the main feed supply is controlled by a valve 32 operated in accordance with steam output and by a valve 51 operated in accordance with the boiler water level.
Patent GB-479722-A (GB)
Title: Improvements in or relating to lamps for illuminating and irradiating surgical operating tables
IPC: F21S8/00
Filed: 1937-05-07
Abstract: 479,722. Radiation-treatment apparatus. PASCHOUD, H. May 7, 1937, No. 13140. Convention date, May 9, 1936. [Class 81 (ii)] [Also in Group XI] In a lamp for irradiating an operating table comprising reflecting elements, a source of illumination, and a source of irradiation, the rays from the source of irradiation are reflected only from a pair of oppositely disposed arcuate elements each subtending an angle of less than 180‹, the area irradiated also being illuminated. In the form shown, a light source 1 co-operates with a complete ring of reflecting elements 5, whilst a source 3 of ultra-violet rays and a source 4 of infra-red rays co-operate, respectively, with diametrically opposed reflecting elements 6, 7. Screens 8, 9, 11 prevent undesirable rays from falling on the reflecting elements or on the operator. In modifications : (i) a single source of ultra-violet and infra-red rays is employed ; (ii) the light source co-operates only with diametrically opposed reflecting elements, which may or may not be those which co-operate with the irradiation sources ; and (iii) screens may be provided which permit rays to fall only on diametrically opposed portions of a complete reflecting crown.
Patent GB-111836-A (GB)
Title: Improvements in or relating to Fireplaces for Ordinary Heating, and Steam or Hot Water Heating in Combination.
Inventor: EMILE SAPANET
IPC: F24D19/06
Filed: 1917-09-13
Abstract: 111,836. Sapanet, E. Dec. 2, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Heat-radiators.-Hot-water or steam heated radiators f forming part of a central heating system are arranged at the sides of a fire-plaoe a burning solid fuel or gas, so that either or both methods of heating may be employed as desired.
Patent GB-205769-A (GB)
Title: Improvements in or relating to spectacle, goggle or like optical frames
IPC: G02C9/02
Filed: 1923-05-17
Abstract: 205,769. Barnes, E. May 17, 1923. Spectacles and eyeglasses.-Frames for spectacles &c. in which auxiliary lens holders are pivoted adjacent to the ordinary lens frames have the hinge axis of the auxiliary frame in front of the spectacle frame and the auxiliary frame cranked from its axis so as to lie close to the spectacle frame when in use and clear of the forehead when out of use. Spring devices are used to enable the auxiliary frames to be retained in various positions. To the ordinary frame 1 is pivoted a bar 4 consisting of two wires 5, 6 connected by blocks 11. The wire 5 comprises the axis of rotation of the auxiliary frame. The auxiliary lens holders 12 are of channel section reinforced at the ends by wire by which they are secured to the bar 4 enclosing the wires 5, 6. Brackets 8 on the eye-frames carry rods 10 in the ends of the wire 5 is mounted, spring-controlled blocks 9 engaging faces on the block 11 to enable the auxiliary lens holders 12 to be held in any one of three positions, Fig. 2. The. lens holders 12 may be set by a knob 14 at the end of the bar 4. In place of this arrangement a spring catch or bolt 20. Fig. 9, engaging a disc 22 concentric with the wire 5 may be used. In a modification. the auxiliary lens holders are pivoted vertically and simultaneously operated by a horizontal rod to which links on the axes of the holders are connected or by rack-and-pinion gear. The link or rack crosses a line joining the hinges so that the lens holders move in opposite directions.
Patent GB-140107-A (GB)
Title: Improvements in or relating to servo-motor apparatus
IPC: B64C13/00
Filed: 1916-09-18
Abstract: 140,107. Soc. Anon. Astra, and Kapferer, H. Sept. 18, 1916. Steering, balancing, and regulating altitude.- Relates to a servo-motor device for operating parts subjected to considerable resistance, such as the ailerons of aircraft, and comprises a screw motor having reversible blades, so as to 'be driven in either direction by the movement of the vehicle through the air, and adapted to transmit the travel of a control member, such as a hand wheel or lever, and as soon as the desired travel has been effected to restore automatically the blades of the motor to the inoperative position. The blades 1 of the screw motor have trunnions 2 rotatable in sleeves 3 by the axial movements of a spindle 13, arranged in a hub 4 and engaging crank pins 14 on the trunnions 2. These axial movements, which are produced by the control operating through a worm wheel 16 and' worm 15, shift the blades 1 from an inoperative position, and the motor is rotated by the air in a direction corresponding to the direction of movement of the control. The rotation is transmitted by a worm 8 and worm-wheel 9 to a spindle 10 carrying a pulley, to which are attached the cables for operating the ailerons or the like, and during this operation the rotating worm 15, engaging the stationary wheel 16, moves the spindle 13 axially back until the blades 1 are restored to the inoperative position, when the motor stops, To prolong the movement transmitted by the servomotor beyond that corresponding to the maximum axial movement of the spindle 13, an elastic device may be inserted between the wheel 16 and the control. For example, two springs 18, 19 are inserted in the chain 20 connecting the wheel 16 to a wheel 21 on the spindle of the control part. The elastic device may be arranged on the spindle of the wheel 16 or on the spindle of the control lever or hand wheel. In a modification, Fig. 5, the control spindle a is arranged to control either the chain 20 of the servo-motor b, connected to the parts to be operated by cables c or the transmission d connected to the same parts.
Patent GB-862732-A (GB)
Title: Manufacturing methed of polarizers
IPC: G02B27/28
Filed: 1959-04-17
Abstract: 862,732. Light polarisers. YAMAGUTI, T. April 17, 1959 [April 18, 1958]. No. 13258/59. Class 97(1) In order to form a polarization prism a thin film 9 of sodium nitrate melt is formed by capillary action between the prisms 7 and 8 arranged on a mica sheet 10 and a brass plate 11 by placing a small quantity of sodium nitrate between the prisms and sheet 10 and then melting it. After setting the entry and exit faces of the assembled prism in parallel relation, the assembly is cooled so that the film 9 of sodium nitrate crystallises and so connects the two prisms 7 and 8 together. The prisms 7 and 8 may be of glass, fused silica or a transparent crystal as of sodium chloride. The method may also be applied to the manufacture of a polarizing plate of the scattering type, this plate being formed by two glass plates having at least one of their adjacent surfaces roughened.
Patent GB-1271703-A (GB)
Title: Improvements in or relating to the manufacture of copper-clad aluminium conductors
Inventor: HAINES ERNEST MARTIN
IPC: H01B1/02
Filed: 1970-03-19
Abstract: 1,271,703. Making conductors; rolling. GENERAL ELECTRIC CO. Ltd. 12 Oct., 1970 [10 Oct., 1969; 19 March, 1970], Nos. 49915/69 and 13271/70. Headings B3A and B3M. [Also in Division H1] A copper-clad aluminium conductor is made by forming copper strip into a tube around an aluminium conductor having an external diameter smaller than the internal diameter of the copper tube formed, reducing the internal diameter of the copper tube by ring rolling and subjecting the conductor so formed to a further reduction so as to form an intimate solid-phase bond between the copper and aluminium. Aluminium strip is fed from spool 13, through guide and edge shear rolls 15 and then, after scratch brushing, through forming rolls 16 which bend the strip into a tube 32 whose edges are welded at head 23. Prior to the edges being welded core conductors 33 together with magnesium oxide powder are introduced into the tube. The welded aluminium tube 32 is passed through a ring roll 19 which reduces the tube and compresses the magnesium oxide powder within it, to form an aluminium-sheathed powder insulated cable 34. A copper strip 25 is passed through edge shearing rolls 26 and then, together with the cable 34, passed through a scratch brush. The copper strip is formed into a tube around the cable 34 by rolls 27 and welded at head 28. The copper-sheathed cable 36 is reduced by a ring roll 29 and finally the cable 36 is passed through a die 31 for effecting a solidphase bonding of the copper cladding to the aluminium sheath. Instead of passing the cable through a die 31 it may be rolled into strip form.
Patent GB-571500-A (GB)
Title: Universal joints
IPC: F16D3/20
Filed: 1943-08-16
Abstract: 571,500. Universal joints; variablespeed gearing. GRAHAM TRANSMISSIONS, Inc. Aug. 16, 1943, No. 13298. Convention date, April 1. [Class 80 (ii)] A universal joint comprises a spherical head 39 integral with a shaft section 40 and carried by a spherical cavity 26<1> in a socket 37. The latter has slots 27<1> and the head 39 has flat portions to permit assembly after which the parts are relatively rotated 90 degrees and a pin 41 is pressed into a hole in the head. The head of the pin 41 engages in one of the slots 27<1> to transmit torque. The pin may be a press fit in the hole or it may be retained in position by a band 42 clipped round the socket 37. A flexible grease retainer 50, Fig. 13 (not shown), may enclose the joint. The joint may be embodied in a variable speed friction gear described in Specification 557,970. In this case the head 39 is integral with a planetary roller 11, Fig. 1 (not shown), and the socket is integral with a stub shaft 16 to which a planetary gear 17 is attached.. Specification 571,499 also is referred to.
Patent GB-133209-A (GB)
IPC: F24H3/00
Abstract: 133,209. Creasey, H. H., and Adams, S. Nov. 19, 1918. Heating buildings etc.; radiators.-Relates to hot-water heating systems of the kind employing a number of radiators which can be heated either by the circulation of hot water or locally by means of gas, electric, or other heating elements, or by both methods in conjunction. With the object of preventing the local heat applied to one radiator being communicated rapidly to the other radiators of the system, the radiators are constructed or arranged with respect to the heating elements i, Fig. 1, and the circulating connexions g, h so as to provide an upper zone of fluid, consisting essentially of the main body of water within the radiator, above the heating elements and a lower or cooler zone or zones s located below the heating elements and between the latter and the connexions g, h, which are both provided at the lower portion of the raditor. In the construction shown in Fig. 1, the zones s are obtained by extending the end loops b, c of the radiator below the level of the other loops e, the connexions g, h communicating with the extensions. In a modified arrangement as shown in Fig. 3, the loops of the radiator are all of the same length, and the zones s are provided in vertical drop pipes p which communicate between the main circulating pipe o and the end loops b<1>, c' of the radiator.
Patent GB-572237-A (GB)
Title: Improvements in or relating to free-wheel hubs for cycles and the like
IPC: F16D41/30
Filed: 1943-08-17
Abstract: 572,237. Cycle driving-mechanism. BIRMINGHAM SMALL ARMS CO., Ltd., and URRY, W. C. Aug. 17, 1943, No. 13334. [Class 136 (ii)] To enable the driving wheel of a bicycle to be removed from the frame 11 without detaching the chain froin the sprocket a separate axle unit 9 secured to the frame carries rotatably chain sprockets 3 of different sizes on a member 1. provided with clutch teeth 15, and the ratchet free-wheel mechanism on a sleeve 31 extending through the hub 21 has clutch teeth 17 adapted to engage the teeth 15, an axle member 43 being screwed to the axle unit 9 to maintain the clutch parts in engagement. The three sprockets 3 of a change-speed gear are mounted on the sleeve 1 rotatable by ball bearings 5, 7 on the short axle 9 fixed to one of the rear forks 11 of the bicycle by nuts 13, and the clutch teeth 15 are formed on the inner face of the sleeve. The driving member 19 of the free-wheel mechanism has facial clutch teeth 17 and drives the hub 21 through spring- pressed pawls 23. The hub 21 is supported on a hollow sleeve 31 through which passes the bolt 43 of which the outer end is received in the other fork 11 and the inner end is threaded to engage a central tapped hole 41 in the fixed axle unit 9. Between the end of the hub 21 and the fork 11 is a distance piece 45 of a width slightly larger than the depth of the clutch teeth 17 so that when the bolt 43 and the distance piece 45 have been removed the clutch may be disengaged and the wheel readily removed without forcing open the forks, leaving the chain sprockets 3 and the chain undisturbed. Shields 37, 39 exclude grit &c. from the mechanism.
Patent GB-253507-A (GB)
Title: Process for obtaining light hydrocarbons from heavy cyclic hydrocarbons or derivatives
Filed: 1926-05-26
Abstract: 253,507. Kling, A. J., and Florentin, J. M. F. D. June 12, 1925, [Convention date]. Hydrogenation, destructive. - Light hydrocarbons are obtained from heavy cyclic hydrocarbons or their derivatives by heating at 350-460‹ C. with hydrogen under an initial pressure of at least 50 atmospheres in presence of a non-hydrogenating catalyst acting as a substitution agent, whereby the cracking temperature is reduced and no coke or tar is formed. Bodies specified for treatment are naphthalene, anthracene, and their derivatives, heavy tar oils, pitch, coal, and colophony. Catalysts specified are the chlorides and other halogenides of the alkaline earth and earth metals. Carbon monoxide or hydrocarbon gas may be mixed with the hydrogen. In an example commercial naphthalene is heated in an autoclave for 1¢ hours with 5 per cent of a mixture of ferric and aluminium chlorides and with hydrogen at an initial pressure of 90 kilograms per sq. cm., 60 per cent of the naphthalene is converted into light oil distilling mostly at 100- 200‹ C. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the treatment of cyclohexane and its derivatives, asphalt, and petroleum residues, and the use of bromides, iodides, and fluorides and " nitrated hydroxylated, and hke derivatives " as catalysts. This subject-matter does not appear in the Specification as accepted.