baber/WOPTO huggingface dataset:
Patent GB-1044907-A (GB)
Title: Improvements in or relating to mine roof supports
Inventor: LEE ROGER DEMANT
IPC: E21D23/00
Filed: 1963-08-08
Abstract: 1,044,907. Mine roof supports. ELECTROHYDRAULICS Ltd. Sept. 14, 1964 [Aug. 8, 1963], No. 31435/63. Heading E1E. In a mine roof support 2, 3 or 4 (Fig. I) comprising two support frames which are guided for relative longitudinal sliding movement, at least one frame has a bowed guide 6 (Fig. 2) which is convex in the direction of the downward gradient (shown by the arrow) when the roof support is used in a sloping seam to counteract the tendency of the support to head down the slope upon advance. The guide is bowed so that the included angle 0 between the tangent to its neutral axis, at its rear end, and the longitudinal axis of the support, is equal to the angle through which a frame can turn due to the tolerances between the guide connecting means 5 and the guide 6. Both frames may have a bowed guide 6 the convexities of which face in the said direction, the said angle # for each guide being then equal to half the angle through which a frame can turn due to the said tolerances to give the same result. With a level seam the guides 6 of a support are convex in opposite directions to obtain the desired movement. To compensate for wear of the bearing of the guide connecting means 5, the guide(s) is or are bowed to compensate for the tolerances and the wear, and it is/they are initially inclined to the mine floor in the plane of the bowing to compensate for the bowing only, and then less so to compensate for wear also as it occurs.
Patent GB-906807-A (GB)
Title: New dyestuff compositions
Inventor: DAWSON FRED
IPC: C09B67/24
Filed: 1959-09-16
Abstract: A dyestuff composition suitable for dyeing nitrogenous fibres, such as those of wool or polyamides, from aqueous baths comprises a 1 : 2-chromium or -cobalt complex compound of an azo dyestuff which is free from sulphonic acid groups but may contain a b -substituted alkylsulphone or an acylamino group, an alkali or alkaline salt, a non-ionic dispersing agent and an amine of the formula:- <FORM:0906807/IV (b)/1> in which M represents a sodium or potassium atom, R1 represents a hydrogen atom or a substituted or unsubstituted hydrocarbon radical and R2 represents a substituted or unsubstituted hydrocarbon radical, or R1 and R2 together with the nitrogen atom form a 5- or 6-membered heterocyclic ring, e.g. a piperidyl or morpholino ring.  Specified alkalis or alkaline salts are sodium hydroxide, carbonate or bicarbonate and trisodium phosphate. Specified non-ionic dispersants are the condensates of ethylene oxide with alcohols or phenols.  Specified amines are the sodium or potassium salts of N-benzyl- or N : N-dibenzyl-sulphanilic acid. Numerous metal complex azo dyestuffs are specified.  Specifications 667,168, 681,653, 687,253, 701,140, 709,401, 726,342, 727,528, 730,036, 731,114, 740,272, 797,046, 798,746, 876,718, 899,714 and 906,806 are referred to.
Patent GB-1005696-A (GB)
Title: Improvements in or relating to colour television transmitters
Inventor: FREEMAN KENNETH GEORGE
IPC: H04N11/16
Filed: 1963-08-09
Abstract: 1,005,696. Colour television transmitters. MULLARD Ltd. April 28, 1964 [Aug. 9, 1963], No. 31584/63. Heading H4F. A colour television transmitter has means for modulating first and second colour information components in quadrature on a sub-carrier and means for reversing the phase of the second of said components on succession transmitted lines of the televised picture, the first of the components comprising substantially equal proportions of two colour signals of either sign and the second of the components comprising substantially equal proportions of the same two colour signals, the sign of one of the two colour signals in the second component being reversed with respect to the sign of that signal in the first component. Thus, when the two signals are R - Y and B - Y, the first component may be a (R - Y) + a (B - Y) and the second component may be b (R - Y) - b (B - Y). It is not necessary that a equals b. Fig. 1 illustrates an arrangement in which a=b. ÁN denotes the first component and # the second component which alternates between the phase positions #N and #R. The components are shown in relation to the normal I and Q components. It is not necessary that the component # should be the component which is periodically reversed. Other arrangements are possible. For example component #R may be transmitted in each line and component Á reversed in successive lines between positions Á N  and Á R . The invention is said to be of particular value with the receiver demodulator circuit described in Specification 1,005,290. When the particular arrangement shown in Fig. 1 is employed the two synchronous detectors of the demodulator circuit may operate at the R - Y and B - Y phase angles to produce these signals directly. A simple matrix may thus be used to obtain the third colour signal G - Y. The components may be transmitted with different bandwidth, that for Á N  being narrower than that for #N. A suitable circuit for the transmitter is illustrated in Fig. 2 where the first and second components are formed by matrix circuits 1 and 2 and applied to modulators 1 and 2. The phase reversal of the second component is brought about either by reversing the phase of the subcarrier signal by a phase reverser 1 or by reversing the phase of the modulating signal by a phase reverser 2. The subcarrier signal from modulators 1 and 2 are combined and modulated in a modulator 3 on a main carrier wave which carries luminance and sub-carrier synchronizing " bursts."
Patent GB-465880-A (GB)
Title: Improvements in or relating to valves for high pressure hydraulic transmission
IPC: F16K17/06
Filed: 1935-11-15
Abstract: 465,880. Valves. VICKERS (AVIATION), Ltd., and EASTES, J. C. Nov. 15, 1935, No. 31665. [Class 135] A valve for high pressure hydraulic systems comprises a rotary disc member c with transfer passages in its seating surface co-operating with inlet and outlet ports and passages b<3>, b<4>, b<5> in the seating surface of the valve body b. The valve member is actuated by a toothed rack m and is held against its seating when the pressure ports are closed by a spring i which acts through a thrust bearing e. When the pressure ports are open the lifting pressure on the valve disc is increased, and to compensate for this increase the outlet pressure is taken to a cylinder a<1> and acts upon a ram j to increase the loading on the valve. The passages b<3>, b<4>, b<5> comprise pressure outlet, exhaust, and pressure inlet passage, respectively, of the hydraulic system.
Patent GB-342289-A (GB)
Title: Improvements in elastic fluid turbines
IPC: F01D11/02
Filed: 1929-10-18
Abstract: 342,289. Steam turbines. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and POCHOBRADSKY, B., Goodwood, Lansdown Road, Sidcup, Kent. Oct. 18, 1929, No. 31717. Drawings to Specification. [Class 110 (iii).] The clearances between adjacent rows of turbine blades are arranged so that the variation in the fluid velocity from point to point along the receiving face of one row is substantially less than the variation in velocity from point to point along the outlet face of the preceding row. The blades have extended shrouding. Reference has been directed by the Comptroller to Specifications 214,985, 226,504, 236,962, and 237,287, [all in Class 110 (iii), Turbines &c.].
Patent GB-397160-A (GB)
Title: Improvements in or relating to abrading or surfacing
IPC: B24D13/14
Filed: 1931-11-16
Abstract: 397,160. Abrasive wheels. STRATFORD, H. R., 1986, East 107th Street, Cleveland, Ohio, U.S.A. Nov. 16, 1931, No. 31744. [Class 60.] In a yieldable abrasive tool consisting of an abrasive pad supported on a flexible rotatable disc, the pad consists of bonded abrasive material having its operative surface regularly subdivided. In rubbing down a panel 1 of a motor vehicle body particularly when coated with paint, varnish, lacquer, &c. the motor 2 mounted on a transportable stand 3 drives through a flexible shaft 5 and bevel or other gearing in a casing 6 a shaft 10 carrying a removable hub 11 to which the abrading disc is screwed. The disc may comprise a flexible backing plate 12 of metal or other material covered with a thick abrasive layer consisting of a mixture of sand, silicon carbide, or like material held in a binder together with filling material such as sawdust, shredded wood, &c. Various binders such as rubber, balata, gutta percha, polymerized oil, or certain glues or waxes may be used. The composition is vulcanized or treated to obtain a relatively hard composition which is sufficiently friable to disintegrate during the abrading operation and so prevent gumming of the abrading surface. In some cases the abrasive composition may be applied to a canvas backing or to a disc of a cellulose product such as vulcanized fibre, parchment paper, kraft paper, or similar material. The backing sheet may be secured to the disc 12. The surface of the pad is formed with recesses 21, 22 to allow the pad to bend as shown in Fig. 1 and to serve as clearance spaces for the material worn from the surface and the pad. In a modification, Fig. 5, a metal plate 25 is covered by a flexible pad 26 of rubber, felt, or similar material to which is applied an abrasive layer having grooves 27, which may extend into the pad 26. In another modification, Fig. 6, a backing 30 of cellulose product, cloth, or metal is covered with a pad 31 of rubber or similar material formed with separate inserts 32 of abrasive material.
Patent GB-924609-A (GB)
Title: Cable identification sleeves and the like
IPC: G09F23/00
Filed: 1960-09-15
Abstract: 924,609. Supports for signs. L. BLANCHET. Sept. 15, 1960 [Sept. 25, 1959; Jan. 14, 1960; Jan. 15, 1960], No. 31831/60. Class 3 (2). [Also in Group XXV] A cable identification sleeve having a slot for holding a replaceable label is made from a resilient plastics material such that the sleeve will resiliently grip a cable. In Fig. 1, is shown a sleeve having a label 9 in the slot 3 and including ribbed legs 5 and a barbed projection 7 for locking the sleeve under a terminal sleeve, for instance. The embodiment of Fig. 3 includes axial slots 15 and 16 and a circumferential slot 17, while Fig. 10 shows a sleeve having cylindrical portions 22 and 23, each having a rib 24, to allow cables of different diameters to be accommodated.
Patent GB-1279297-A (GB)
Title: Ceramic gang mold
Inventor: FEAGIN ROY CHESTER
IPC: B22C9/20
Filed: 1969-06-24
Abstract: 1279297 Moulding plastic substances. HOWMET CORP 24 June 1969 31844/69 Heading B5A [Also in Division B3] Moulded sections of a plurality of shapes are produced from a die by locating one or more inserts in the die cavity to block off a portion or portions thereof, moulding a section in the remainder of the die cavity, removing the insert or inserts from the cavity and moulding another section in the cavity having the same shape as the first but with additional parts. A plurality of differently shaped sections may thus be produced, e.g. by transfer moulding, and are combined to produce a gang mould for metal casting. The mould sections may be made of alumina, zirconia, zircon, mullite, clay, graphite, alphaquartz, fused silica, high melting glass and other fused refractories, iron chromite, chromic oxide, titanium carbide, titanium beryllide, silicon carbide or other suitable carbides, beryllides and borides.
Patent GB-481683-A (GB)
Title: Improved method of and means for depositing one metal or alloy upon another
IPC: B23K5/18
Filed: 1936-11-21
Abstract: 481,683. Making coated poppet valves &c. OUBRIDGE, W. A., and CARPENTER, E. Nov. 21, 1936, No. 31897. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-In a method of depositing one metal or alloy on the rectilinear, circular or annular surface of another, particularly for coating the seats or faces of poppet valves with an alloy such as that sold under the Registered Trade Mark " Stellite," the molten metal is deposited on the surface from opposite directions simultaneously so that after the surface is covered the ends of the deposited metal meet one another at the same temperature. The preheated work and the deposit are thus prevented from cooling unduly before the coating is completed, and the tendency to crack is thus prevented. The article is subsequently allowed to cool slowly. The heated valve v is placed in a heated copper block x mounted on an insulating washer t in a support e carried by a spindle b fixed to a base a. Around the spindle is mounted a table c which is rotated on ball bearings c<1> by a belt and carries a holder f provided with a torch g and stick h of the metal to be deposited. A second table d mounted on ball bearings d<1> on the table c and connected thereto by crown gear j, j<1> and pinions k so that it rotates in the opposite direction to the table c, carries a similar holder f<1> with torch g<1> and metal rod h<1>. The metal rods are adjustably secured by screws s, s<1>, in slidable blocks m, m<1> which are retracted by springs and fed forward as consumed by wires or cables o, o<1> secured thereto and to-grooved collars p, p<1> on the spindle b. The operation is started with both holders at the point A and is completed when they both reach the point B. A pair of holders may be mounted at the opposite ends of a diameter of each table so that the four holders may complete the operation by rotating the tables in opposite directions through 90‹. The return movement of the tables may be effected by springs or reversing gear. For operating on rectilinear surfaces the holders may be mounted on slides moving simultaneously in opposite directions.
Patent GB-142417-A (GB)
Title: Improvements in or relating to lasts for boots, shoes and the like
IPC: A43D3/02
Filed: 1919-12-19
Abstract: 142,417. Wilson, W. A. Dec. 19, 1919. Lasts. - In a last which is adjustable vertically and horizontally for different sizes, ineluding very highbeeled -wear, the adjustment is made by a threaded bar c working in a threaded nut d abutting against a heel piece b. The forward end of the bar is adjustable by using a screw h in a slotted bearing g provided with holes g<1> at varying heights and attached to 'the toe piece a. The heel piece b may carry a bent support k for plac. ing on the operator's knees, or the last may be supported in an attachment which can be screwed to a bench. Holes m in the toe piece serve to accommodate mushroom-shaped bunion appliances. The space between toe and heel pieces is closed by a waist-piece o. Heel-stretching pieces p, q may be used.
Patent GB-618371-A (GB)
Title: Improvements in or relating to sliding brackets, particularly for photographic enlargers and like optical projection apparatus
IPC: G03B27/56
Filed: 1946-10-28
Abstract: 618,371. Brackets. REID, G. H. Oct. 28, 1946, No. 39172. [Class 52 (v)] [Also in Group XX] In an arm-like bracket slidably mounted on a supporting column and provided with frictional locking means which hold it at any desired position on the colum, the locking means is released by a lever pivoted adjacent the column and extending outwards along the arm so that its outer end is moved by gripping the arm in the hand to slide the bracket along the column. As shown the locking means consists of a lever 22 pivoted in the bracket at 23 and carrying at one end a cam 25 having an anticlastic surface adapted to fit closely around a vertical column 11 at the locking position, and at the other a pin 18 which is depressed against a spring 26 by gripping the bracket to release the locking means. The line joining the centre 30 of the cam periphery to the axis of the pivot pin 23 is approximately vertical and subtends a small angle at the periphery. The locking means may include a ratchet permitting the bracket to be raised freely without operating the leasing means. The Provisional Specification refers to the spring which urges the cam-ended lever to the locking position being adjustable by screw means and to the bracket surfaces engaging the column being self-lubricating material such as lubricantimpregnated bearing metal.
Patent GB-466116-A (GB)
Title: Improvements in or relating to motion picture cameras and film magazines
IPC: G03B19/18
Filed: 1935-11-19
Abstract: 466,116. Kinematograph cameras. KODAK, Ltd. Nov. 19, 1935, No. 32023. Convention date, Nov. 20, 1934. [Class 97 (i)] In film magazines fitting into a camera in two positions for exposing successively the two halves of the film, exposures being effected through two different apertures in the magazine, a single shutter, capable of closing both apertures or of opening them alternatively, is provided; means may also be provided for opening the shutter after the magazine has been inserted in the camera and the camera has been closed, and such means may be operated by movement of the locking device for the camera cover. As shown in Fig. 1, the magazine B has exposure openings B<1>, B<2>, and a flexible shutter, having extremities C<1>, C<2>, held between the magazine walls and a fixed strip D. The shutter carries a stud C<5> engaging between prongs E<4> on a slidable strip E having lugs E<1> to engage hooks E<2> in the camera cover A<2>; when the cover is closed, movement of the strip E by a knob E<3>, to lock the cover, also moves the magazine shutter to open the apertures B<1>. The magazine shutter closes, simultaneously with the apertures B, B<1>, film feed slots in the magazine walls, and recesses, which are provided in the shutter, free the feed slot corresponding to the opened exposure aperture, so that a feed claw F may enter it. For exposure through the second aperture B<2>, the magazine is removed from the camera, turned about a vertical axis, and replaced. Fig. 4 shows a front view of a magazine which is inverted for exposure through the second aperture, the two apertures G <1>, G<2> being in the front wall and being covered by a rigid strip H having two apertures H<1>, H<2>. The front wall of the magazine is also provided with feed slots G<3>, G<4>, and with slots G<5>, G<6> through which studs H<5>, H<6> on the shutter extend. Movement of the shutter upwards or downwards, by one of the studs, can register the apertures G<1>, H<1>, or the apertures G2, H<2> and at the same time, owing to the provision of recesses H<3>, H<4> in the shutter, free the corresponding feed slot. Sliding means for moving the shutter simultaneously with the locking means for the camera cover is described.. The two exposure apertures may be constituted by a single opening L<1>, Fig. 6, which is opened in halves by apertures M<1>, M<2> in a shutter M moved upwards by a knob M<5>. The shutter has ratchet teeth M<6> engaged by a spring pawl L<5> to hold it in adjusted position against the pull of a spring L<6>. Movement of the shutter so as to engage the pawl successively with the teeth, first opens one half of the opening L<1> and frees the feed slot L<3>, then opens the other half and frees the slot L<4>, and finally completely closes the opening L<1> and the feed slots.
Patent GB-485925-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/10
Filed: 1936-11-23
Abstract: 485,925. Knitting-machines. CLARKE, A. V. Nov. 23, 1936, No. 32027. [Class 74 (ii)] To enable greater variation to be made in patterning non-ribbed fabrics knitted upon a double cylinder machine, means are provided for moving one cylinder out of register with the other cylinder while permitting knitting to be performed on the undisplaced cylinder. The displacement of the upper cylinder may be effected by hand, or as applied to a rotary needle cylinder machine, mechanism, comprising means for restraining the upper cylinder from rotation within its cam box, may be provided for effecting the displacement by power. The cam box 12 is supported upon a plate 13 supported in turn upon a ring 17 concentric with the vertical drive shaft 16 for the upper cylinder 10. Upon a sleeve 24 secured to the upper cylinder 10 are mounted two members 25, 26, each of which can move around the sleeve 24. The upper member 26, which normally rotates with the sleeve carries diametrically disposed projections 28 engaging springs 29, 30 mounted within annular slots in a member 27 socured to the upper end ot the sleeve. the lower member 25 has a forked end 25<1> embracing the shaft 16 and carries a tongue 31 which by means of a pattern controlled cam 34 can be moved into a slot 33 in the member 26. The member 26, and therefore the sleeve 24 and cylinder 10 are therefore locked to the member 25 and rotate about the gear 15 and shaft 16. Resilient stops 38, 39 serve to bring the cylinder to rest in either of its two positions, any delay in withdrawing the tongue 31 serving to compress the springs 29, 30. Alternative means for putting restraint upon the normal rotation of the upper cylinder may be provided for displacing the cylinder. The yarn fed to the needles during rib knitting is supplied by a feeder plate 20 associated with the upper cylinder. Upon the upper cylinder being displaced, the yarn supplied by the feeder plate 20 is trapped and cut by mechanism contained within the top cylinder, and a feeder or a battery 43 of feeders is brought into position to feed yarns to the lower cylinder needles. Sun and planet and other toothed gearing may be provided for obtaining a reduced driving speed for moving the top cylinder to the displaced position. The machine is provided with outside sinkers 21. Specification 486,001 is referred to.