baber/WOPTO huggingface dataset:
Patent GB-1236071-A (GB)
Title: Magnetic flux-activated control
Inventor: ZINKE OTTO HENRY
IPC: G01K7/36
Filed: 1968-03-14
Abstract: 1,236,071. Magnetic tests; measuring non- electric variables; radiation detectors. O. H. ZINKE. March 14, 1968, No. 12566/68. Headings G1A and G1N, A magnetic flux bridge comprises two ferromagnetic circuit members arranged to provide two magnetically parallel flux circuits with a section of one member being common to both flux circuits and coupled with an A.C. energizing winding and a section of the other member forming a connection between the parallel flux circuits and being coupled with a pick up winding or other flux detection means. As shown in Fig. 1, two H-shaped members of soft iron or ferrite are arranged with their centre sections at right angles and four flux impedance elements C12-15 are disposed in respective airgaps between the members. In Fig. 7, one member is C-shaped and the other is a folded H. In another arrangement Fig. 5 (not shown) two X-shaped members are used. Applications. The magnetic and electric properties of specimen in one air-gap may be compared with those of a standard in the other air-gap of the same flux circuit or an air-gap in the other flux circuit. To measure temperature, any material having an electrical conductivity or magnetic permeability that changes with temperature may be used as one of the flux impedance elements. To measure fluid-pressure or flowrate, the element may be heated, the rate of cooling and hence the temperature and resistance of the element depending on the pressure and/or flowrate of the fluid. A radiation detector may be formed using a detector element of blackened aluminium foil. Strain may be measured using a flux impedance element which changes its electric or magnetic properties in response to strain. The thickness of conductive material may be measured by comparing its impedance with that of a standard in another arm of the bridge. Movements of one of the flux impedance elements may be measured. Normally, operation would be below saturation, but the possibility of saturating the magnetic material is mentioned. A D. C. flux may be superposed on the A. C. flux. Amplitude and phase measurements may be made. Instead of a pick up coil, an attraction armature may be used to sense bridge unbalance.
Patent GB-841946-A (GB)
Title: Halogenation of polymeric hydrocarbons
Inventor: STEINER HERBERT MAX EMIL
IPC: C08F8/20
Filed: 1956-04-24
Abstract: Polymers of mono vinyl aromatic compounds such as styrene, vinyl toluene, - a  methyl styrene, vinyl naphthalene or mixtures thereof and acenaphthylene are halogenated at between -20 DEG C. and 50 DEG C. by the introduction of liquid or gaseous chlorine or bromine into a suspension or slurry of the polymer in a liquid which is not a solvent for the polymer or copolymer.  The polymer, e.g. polystyrene or expandable polystyrene beads is preferably suspended in water or a light petroleum fraction.  Small amounts of swelling agents such as methylene chloride, chloroform, carbon tetrachloride and acetic acid, and suspension stabilisers such as polyvinyl alcohol, alkyl or aryl substituted sodium sulphates or sulphonates may also be included. Mildly alkaline compounds such as calcium carbonate, and nuclear halogenation catalysts e.g. iodine, may also be included.  The halogenated product may be separated, washed, and purified and mechanically treated to improve the processing properties, and shaped articles may formed therefrom.  Specifications 778,761 and 807,237 are referred to.
Patent GB-492976-A (GB)
Title: New or improved means for locating a member axially along a shaft with which it turns
IPC: F16D1/06
Filed: 1937-05-04
Abstract: 492,976. Securing worm wheels on shafts. BROWN & SONS (HUDDERSFIELD), Ltd., D., and SYKES, A. May 4, 1937, No. 12655. [Class 80 (ii)] Means for securing a member such as a worm wheel b to a shaft a so that it is adjustable along the shaft but cannot rotate on it, comprise a nut c screwed on a reduced end a<2> of the shaft and secured to the wheel b by screws e passing through a flange on the nut, the wheel b being slidably secured against rotation on the shaft by keys d. The nut c is screwed tightly against a shoulder a<1> on the shaft, and the wheel b is drawn tightly against the flange of the nut, adjustment of the position of the wheel being obtained by the use of shims between the nut and the shoulder a<1> or the nut and the wheel b.
Patent GB-713587-A (GB)
Title: Improvements in and relating to double toothed wheels, more particularly slide wheels, for change speed gears
IPC: B21K1/30
Filed: 1952-05-20
Abstract: 713,587. Toothed gearing. PORSCHE, F. May 20, 1952 [Aug. 8, 1951], No. 12708/52. Class 80 (1) A double toothed sliding gear wheel for variable speed gears is fabricated from t w c wheels 4<SP>1</SP>, 5<SP>1</SP> and a connecting member 6. The member 6 may be made of tubing or of rolled sheet metal and is pressed into annular recesses 7, 8 of conical form. This construction facilitates the formation of teeth on the wheel 5<SP>1</SP> and results in a saving of material by reducing the machining necessary.
Patent GB-645332-A (GB)
Title: Improvements in gyroscopic apparatus
IPC: G01C19/38
Filed: 1944-07-04
Abstract: 645,332. Induction motors. SPERRY GYROSCOPE CO., Inc. July 4, 1944, No. 12734. Convention date, Nov. 10, 1942. [Class 35] [Also in Groups XX, XXXVIII and XL (a)] In a two-phase motor for use as a torque motor in the erection of a gyroscope the stator is in the form of a squirrel cage, the inductor bars of which are shown at 57. One phase of the twophase supply is connected to windings 55, 55<SP>1</SP> acting differentially and the other phase to a winding 56 electrically spaced 90 degrees from the first phase windings. With an even number of rotor winding slots there are provided an odd number of inductor bars 57 or vice versa to minimize slot lock.
Patent GB-672151-A (GB)
Title: Improvements in or relating to rolling or smoothing devices
IPC: A61H15/00
Filed: 1949-05-13
Abstract: 672,151. Massage appliances. PEARCE, H. May 9, 1950 [May 13, 1949; June 1, 1949; Sept. 28, 1949; Oct. 13, 1949], Nos. 12785/49, 14671/49, 24914/49, and 26301/49. Class 81 (ii). [Also in Group XI] A massage device comprises a holder having a ball freely mounted and retained therein so that a part is exposed, heating means being dispersed externally of, but in thermally conducting relation to, said ball. A ball 3 is held within a cup 2 at one end of a holder 1. At the base of the cup 2 an electrically insulated heating element 8'is provided which element may be supplied with electricity through leads 11 or a battery contained within the holder 1. Another ball or a roller 3b may be held at the other end of the holder. The holder may be provided with a mushroom-shaped or T-shaped handle. The ball 3 may be heated by an electric element 8 round the sides of the cup 2 (Fig. 6) and may seat against a small ball 38 held at the base of the cup 2. The holder 1 (Fig. 7) may be constructed to hold a plurality of balls 53 lying in a plane or curved surface, one or all the balls 53 being heated by an electric element 8 arranged behind them.
Patent GB-791687-A (GB)
Title: Improvements in and relating to horizontal flat bed printing machines
IPC: B65H5/00
Filed: 1955-05-03
Abstract: 791,687. Cylinder printing machines. EDWARDS, A., PECK, H., and LINOTYPE & MACHINERY, Ltd. April 27, 1956 [May 3, 1955], No. 12796/55. Class 100(2) A horizontal flat bed printing machine having a sheet feeder which can be rolled away therefrom, has automatic means for effecting synchronization of the feeder drive with the drive of the machine when the feeder is moved into working position, there being a driving shaft on the machine connectible with a driven shaft on the feeder, both shafts being arranged to rotate once while the machine completes a single printing cycle. As shown, the machine 11 has a roll back feeder 10, and a delivery end 12 fed by a chain delivery device 23. The machine has a main motor 13, and a pump 15 driven by a motor 14 provides the usual air supply. The feeder 10 is adapted to be driven from the machine, but it has a motor 16 and pump 17 for supplying air. The driving shaft 24 of the machine drives the feeder through bevel gears 25, 26, a short shaft 71, a semi-circular half-dog clutch 27 and an Oldham coupling. The other half of the clutch is on the feeder 10, and is slidably but non- rotatably mounted on a cylindrical part 28 secured to a shaft 60 carrying a bevel gear 29 in mesh with a gear 30 on a shaft 31 which drives the feeder through a gear box 32. The shafts 60, 71 are arranged to rotate once while the machine completes a single printing cycle. Thus when the feeder is moved into working position there is only one position in which the clutch parts 27, 28 can be engaged, and the machine and feeder are then in synchronism. The feeder has a pair of rear wheels 18 which run on the floor, and a pair of front wheels 8 which run on rails 19, and can be driven by a hand-wheel 22, through a sprocket and chain means, a friction clutch, and a further sprocket and chain means. As the feeder 10 is moved along the rails 19 on. turning the wheel 22, it is guided laterally by valances on the base of the feeder engaging rollers on ramps to which the rails 19 are hinged. Spring-urged buffer pistons 21 on the machine 11 cushion the two parts when they meet, and spring-controlled latches retain them together. An electrical circuit is described and shown which ensures that when the feeder 10 is withdrawn, electrical connection between the feeder and machine 11 is broken, and the machine can then be operated by push button but only at a speed which is a fraction of its normal running speed. With the feeder in working position, a plug on one part engages a socket in the other to establish electrical connection. When the feeder is withdrawn, resistances are automatically connected to the rotor windings of the motor 13 of the machine 11.
Patent GB-859105-A (GB)
Title: Improvements in or relating to voltage converters
IPC: H02M7/53846
Filed: 1959-04-15
Abstract: 859,105. Transistor inverter circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 15, 1959 [April 18, 1958], No. 12807/59. Class 40(6). [Also in Group XXXV] In the push-pull transistor oscillator circuit of a D.C. converter building up of the oscillations is promoted by applying forward voltages to the bases of the main transistors 3, 4 (Fig. 2) through auxiliary transistors 14, 15 respectively and loaddependent control voltages are supplied to bases of transistors 14, 15 by feed-back windings 8, 8<SP>1</SP>. Thus, when the load becomes excessive and oscillation is stopped or reduced to a small amplitude the forward bias on transistors 3 and 4 is reduced and excessive dissipation avoided. At starting a forward bias is momentarily applied to the base of transistor 15 from battery 1 through resistance 17 and electrolytic capacitor 16. This forward bias disappears as 16 is charged up, transistors 14, 15 being then driven by the voltage across the entire feed-back windings 8, 8<SP>1</SP>. A resistor with a negative temperature coefficient or a transistor 21 with a floating base which carries only a temperature-dependent leakage current is connected between the collectors of 14, 15 and the positive terminal of battery 1 and is mounted on the same cooling plate as the main transistors. Increase of temperature then causes a decrease of potential at the collectors of transistors 14, 15, so that the current supplied to the bases of the main transistors is approximately temperature dependent and a high value of resistance 18, which facilitates build-up of the oscillations is permissible. The base resistor 9<SP>1</SP> may be shunted by a diode. Fig. 3 shows an arrangement incorporating four main transistors in two series connected pairs 3, 3<SP>1</SP> and 4, 4<SP>1</SP>. A satisfactory division of alternating and direct voltages over the emitter collector circuits of 3, 3<SP>1</SP> and 4, 4<SP>1</SP> is obtained by the voltage dividers 29, 30 and 29<SP>1</SP>, 30<SP>1</SP>, in association respectively with the series circuit 22, 23, 24 and resistor 25 and the series circuit 22<SP>1</SP>, 23<SP>1</SP>, 24<SP>1</SP> and resistor 25<SP>1</SP>.
Patent GB-820953-A (GB)
Title: A process for the production of salts of phosphorus anhydride acids
IPC: C01B25/39
Filed: 1956-04-27
Abstract: The process for the production of salts of a phosphorus anhydride acid of the formula <FORM:0820953/III/1> comprises reacting a halogen compound of trivalent phosphorus with a salt of an acid of pentavalent phosphorus, in the presence of water, separating orthophosphates from the reaction mixture and isolating the salts of the anhydride acid in known manner, preferably by crystallization or by fractional precipitation by means of an organic solvent.  The same salts as those of the parent Specification are specified, e.g. lithium, sodium, potassium and ammonium.ALSO:The process for the production of salts of a phosphorus anhydride acid of the formula <FORM:0820953/IV (a)/1> comprises reacting a halogen compound of trivalent phosphorus, e.g. phosphorus trichloride or tribromide with a salt of an acid of pentavalent phosphorus in the presence of water, separating orthophosphates from the reaction mixture and isolating the salts of the anhydride acid in known manner, preferably by crystallization or by fractional precipitation by means of an organic solvent.  The same salts as those of the parent Specification are specified, e.g. gaseous or liquid amine salts, especially salts of amines containing at most six carbon atoms such as mono-, di- and tri-ethanolamines.
Patent GB-926069-A (GB)
Title: Apparatus for metallizing synthetic plastic material
IPC: H01B1/00
Filed: 1961-04-11
Abstract: 926,069. Apparatus for coating plastic webs by vapour deposition. WESTERN ELECTRIC CO. Inc. April 11, 1961 [April 15, 1960], No. 12958/61. Class 82. In an apparatus for metallizing synthetic plastic material by vapour deposition the base web is supplied at the same speed as it is taken up to avoid stretching it. The base strip 16 (Fig. 1) is fed from reel 14 via rollers 26, 27 and 28 to pass through the metallizing chamber 30 and thence to the takeup roll 37 which is driven by a variable speed motor 38 (Fig. 2, not shown). Roller 35 is actuated in response to the speed of take-up roll 37 and is connected to guide roll 33 and arbour 58, which latter is connected to rolls 26, 27 and 28, all the connections being by means of chains and sprockets or preferably belts and pulleys with intermeshing teeth thereon. Hence the feed from 14 is at the same speed as the lay down on 37 and stretching of the base when hot in the deposition means 30 is avoided. The coating of polyethylene terephthalate polystyrene, or cellulose acetate with zinc or aluminium is referred to.
Patent GB-367636-A (GB)
Title: Improvements in axle boxes for railway rolling stock and particularly in axle-boxes with mechanical lubrication
IPC: B61F15/20
Filed: 1931-05-01
Abstract: 367,636. Axle-boxes. LEONARD, N., Feignies, Nord, France. May 1, 1931, No. 12959. Convention date, Sept. 22, 1930. [Classes 12 (i) and 12 (ii).] In a railwayvehicle axle-box, excessive lift of the box with respect to the axle is prevented by the arrangement below the journal 2 of a stop member 10 pivoted about an axis at right-angles to the journal so as to be capable of being tilted into a horiz o n t a l position. The member 10 is pivoted about a pin 9 mounted in a part 8 of a partitioned member 6 removably mounted in the box, the member 6 serving to prevent surging of the oil and to clarify the latter. The member 10 is adapted to be maintained vertical by balls 15 arranged in a hole therein and pressed by a spring 16 into recesses in the member.
Patent GB-582421-A (GB)
Title: Improvements in or relating to couplings for pipes, tubes and the like
IPC: F16L37/12
Filed: 1943-08-11
Abstract: 582,421. Stuffing-boxes &c. THOMPSON PRODUCTS, Inc. Aug. 11, 1943, No. 12994. Convention date, Aug. 5, 1942. Addition to 552,932, [Group XXVIII]. [Class 122 (v)] [Also in. Groups XXVIII and XXIX] A modification of the pipe coupling of the parent Specification comprises a pair of coupling boxes together defining a valve chamber with open top and closed bottom each port having a passageway to the chamber and one part of a split plug valve, the valve parts being sealed by dished or cylindrically concave sealing rings 37 which may be formed of hard rubber backed by soft rubber urged by springs 70 and having internal retaining rings flanged to prevent outward axial expansion.
Patent GB-358413-A (GB)
Title: Improvements in screw-cutting chasers
IPC: B23G5/12
Filed: 1931-05-02
Abstract: 358,413. Chasers; screwing dieheads. JONES & LAMSON MACHINE CO., Springfield, Vermont, U.S.A.-(Assignees of Bysshe, E. T.; 91, Summer Street, and Finn, R. R. ; 98, Wall Street, both in Springfield, Vermont, U.S.A.) May 2, 1931, No. 13037. Convention date, Jan. 21, 1930. [Class 83 (iii).] In a screw-cutting chaser of the tangent type having the cutting ridges chamfered off to distribute the cutting between successive teeth, the chamfered ridges are cut back for clearance at successive points along the ridges. The chasers 2, Fig. 1, which may be provided with transverse serrations 10 for co-operating with locking plungers 8 as described in Specification 356,223, are cut back as at 25, Fig. 5 ; along the chamfered cutting ridges a, b, Fig. 2, to provide a series of cutting edges 26 which may be used in succession after grinding of the outermost cutting edge, the spacing of the edges 26 being the same as the pitch of the serrations 10 to facilitate re-setting in the die-head. The surfaces 25 may also be concaved, as described in Specification 356,186, to enable the flank faces of the chaser teeth to conform substantially with the curvature of the flanks of the completed thread on the work w. The concavities are co-extensive with the cut-back surfaces 25 and may be formed on the cutting ridges a, b only or on the guiding ridges b, c also. When formed on the cutting ridges only, these are offset from the remaining ridges as set out in Specification 356,186. These forms of stepped cutting ridges may also be used in circular tangent chasers, as shown in Fig. 8. Set positions, indicating and determining.-Instead of being positioned by the gauging serrations 10, each chaser may be provided with transverse ribs 35, Fig. 7, for co-operation with circular ribs 36 on a micrometer adjusting screw 37 rotatable in the holder.
Patent GB-238829-A (GB)
Title: Device for restoring fatigued facial muscles to their original position
IPC: A45D44/22
Filed: 1925-05-19
Abstract: 238,829. Whitney, D. May 19, 1925. Face and features, improvtng appearance of.-A device for restoring facial muscles to their original position comprises curved lateral members a, Fig. 1, secured by members c, f to a band b on a cap of rubber or like material, additional fastening cords n, h being provided. A modified form of supporting cap is shown in Fig. 5, the members a being suspended from the loops c<1>, g. The members a are carried on a deformable metallic frame whereby the form of the said members may be modified as desired, while all the securing members c<1>, g &c. are adjustable in length. The chin cord h may be replaced by a central member q, q<1> connecting the side members o, o', p, p<1> of the wire frame, Fig. 7, the said member q, q<1> serving to support drooping chin muscles and being formed with loops q<2> giving elasticity and permitting variations in length. The supporting-cap may be arranged to be mounted, on a hat so that the device may be worn while on a journey.
Patent GB-611397-A (GB)
Title: Window channel
IPC: B60J10/04
Filed: 1946-04-30
Abstract: 611,397. Window channel guides. TRIGGS, W. W. (Standard Products Co.). April 30, 1946, No. 13074. [Class 20(iii)] In a guide for window-panes, e.g. in vehicles, having a channel section core A, in which the side walls of the channel have transverse slots extending to their free longitudinal edges, the parts on opposite side of the slots are out of alignment to allow them to overlap when the channel is longitudinally bent. In the form shown, the core A is of sheet metal and is strengthened by corrugations 10 and the transverse slots are formed in the sides of alternate corrugations, in the front sides 18 in one side wall of the channel and in the rear sides 19 in the other. The other corrugations have base slots 22 to further facilitate the bending of the channel. These slots 22 may be omitted in which case all the corrugations have transverse side slots 18, 19. In either case, the necessary elongation of the core covering B when the channel is bent, is reduced so that ordinary woven fabric may be used therefor.
Patent GB-1111556-A (GB)
Title: Improved gas burner
IPC: F23D14/46
Filed: 1967-03-21
Abstract: 1,111,556. Burners. R. GUEREL. 21 March, 1967 [22 March, 1966], No. 13112/67. Heading F4T. [Also in Division B3] A burner is made by stamping out a blank and perforating it with outlet apertures 4, the blank being then folded about an axis (6) passing through the outlet apertures and the contacting surfaces being joined by welding, clamping or riveting &c. A tapering gas inlet passage 2 leads into an elbow form mixing chamber 1 which in turn leads into an outlet head 3 of decreasing width.
Patent GB-131594-A (GB)
IPC: F28B1/00
Abstract: 131,594. Ehrhart, R. N. Aug. 21, 1918, [Convention date]. Straight tubes between headers; longitudinal partititions and baffles.-The nest of tubes 3 is arranged in a rectangular casing 2 so as to leave a steam-space 8 above the tubes and a steam space 9 at one side converging to one of the lower edges. The condensate outlet 5 and airdischarge port 6 are arranged at the opposite lower edge. The nest of tubes is divided into two sections by an inclined partition 12.
Patent GB-1277565-A (GB)
Title: Process for the manufacture of a pigment
Inventor: TWIST WALTER
IPC: C09C1/36
Filed: 1970-03-18
Abstract: 1277565 Coated TiO 2  BRITISH TITAN Ltd 19 April 1971 [18 March 1970] 13168/70 Heading C1N TiO 2  particles are coated first with hydrous Al oxide and then with an alkyd resin. The resin coating is produced by mixing the TiO 2  with a solution of the resin, e.g. in xylene, toluene or white spirit, and then, without separation, drying the mixture, e.g. in a band or spray drier. The product may contain 0À5-20% resin and 0À01-10% Al oxide, by wt. of TiO 2 . The first coating may also contain a hydrous oxide of Zr, Ti, Ce, Zn or Si, and/or a phosphate. The TiO 2  may be anatase or rutile and may be made by the sulphate or chloride process. The resin is preferably non-drying. The product may be fluid energy milled.