baber/WOPTO huggingface dataset:
Patent GB-827413-A (GB)
Title: An improved method and apparatus for printing a colour transparency
IPC: G03B27/72
Filed: 1957-06-25
Abstract: 827,413. Colour photography. KODAK Ltd. June 25, 1957 [June 25, 1956], No. 19999/57. Class 98(2) [Also in Group- XL(b)] A method of printing a colour transparency originally made either by daylight or artificial light exposure and avoiding, in the printing, residual colour errors in the transparency due to the presence of relatively more blue or red energyrespectively in these lights, comprises determining the type of light which was. used for making the transparency and then focusing it on to material sensitive to the three regions of the spectrum with light corresponding accordingly either to a warm (red-yellow) aim point or a cold (blue-cyan) aim point located on the indigo-orange axis of a chromaticity diagram at equal distances on opposite sides of the gray point on such axis. Determination of the original type of light may bemade visually as by assuming a beach scene to have been by daylight and an indoor scene by artificial light, or by the apparatus of Fig. 2 wherein light LD containing the three primary colours passes through the full area of a colour transparency T on to red- and blue-filtered photodetectors Cr, Cb and signals Er, Eb therefrom are subtracted from one another to give difference signal E1 which is amplified at A to give voltage signal E2 to operate a memory circuit 125 for one sign of E2 but not for the other, and this can be used to give the operator an appropriate signal designating the type of illuminant to be used for the printing, such as either W (warm) or C (cold) on the line X equidistant from the gray point G of the ICI chromaticity diagram of Fig. 1; or may be connected to automatically charge the red, green and blue printing lights at 39r, 39g and 39b. Such connections, and also the printer, are represented diagrammatically in Figs. 3, 4 (not shown), respectively. Specification 660,099 is referred to.
Patent GB-572655-A (GB)
Title: Improvements relating to band clips
IPC: F16L33/04
Filed: 1944-06-03
Abstract: 572,655. Fastenings. FAN DISC, Ltd., and KILLEEN, L. W. June 3, 1944, No. 20111/43. [Class 44] A band clip h, has dished formations e formed on opposite sides of the clip so that, after bending up, in the closed position of the clip they may meet together. The dishing e<1> is provided with slots c, and the edge of the hole is deformed in known manner to engage the threads of the screw. The dishing c for the head is unslotted.
Patent GB-314233-A (GB)
Title: Improvements in feed mechanism for multi-ply roll stationery in typewriting and likemachines
IPC: B41J15/18
Filed: 1928-07-11
Abstract: 314,233. Carter-Davis, Ltd., and Harries, A. W. July 11, 1928. Registering webs. - In flat-platen typewriters and like machines employing a multiple-ply web, the plies 1 - - 6, Fig. 1, are guided and tensioned to ensure register by means of grating-like sets o, p of rollers mounted in stationary and movable frames m, m<1> at the rear of the platen, the movable frame being connected to springs t which normally cause the rollers p to tension the plies, and being connected also to the pedal for releasing the web-clamp so that on release of the clamp the frame is moved forwards to relieve the tension on the plies and permit them to be drawn forwards. The frame m may have slots d<1>, d<2> for engaging cross-rods on the framework of the machine. The frame m<1> preferably rests on the rollers o and is held down by means of pegs u, rearward movement being limited by pegs v. The frame m may be provided with a pivoted strut w for holding the frame m<1> in forward position to relieve the plies from tension. Adjustable guides x for the plies may be mounted on a cross-rod on the frame, m. The frame m may be provided with a support for the web-roll. A chain q passing over a pulley s may be employed for connecting the pedal to the frame m<1>. Specification 297,512 is referred to.
Patent GB-721880-A (GB)
Title: Device for perspective drawing
IPC: B43L13/14
Filed: 1951-08-27
Abstract: 721,880. Mathematical drawing appliances. PRESNA MECHANIKA, NARODNI PODNIK, and SALNER, A. Aug. 27, 1951 [Sept. 7, 1950], No. 20194/51. Class 97 (3). A device for drawing a perspective view from a plan and elevation of an object comprises a drawing base having thereon a horizontal axis Z representing the intersection of the picture plane with the ground plane the ground plan of the object being arranged above said axis and the elevation below said axis, parallel straight lines 11 normal to the axis Z being formed on the elevation side and straight lines 8 on the plan side of the-axis converging to a point which is the plan projection of the viewpoint, said lines 11 and 8 forming the perspective projections and the plan projections of the lines of sight from the viewing point, a ruler 10 perpendicular to lines 11 displaceable parallel to itself as by sliding along the blade 13 of a T-square, a second ruler 9 intersecting the lines 8 and inclined to the ruler 10 and adapted to be displaceable therewith in a direction normal to the lines 11 as by supporting the ruler between the stock and blade of the T-square and a thread 12 stretched between a point on the effective edge of the ruler 10 which is located vertically beneath the point of intersection of the line Z and the edge of ruler 9 and a point 7 in the drawings base representing a vanishing point. The point 7 may consist'of a pulley or needle over which the thread 12 passes and may be kept taut by means of a weight 14 or by spring means. The rulers 9 and 10 may be strips of transparent material provided with straight-line markings used in place of the ruler edges. The thread 12 may be replaced by a ruler pivoted at point 7 and having a pivotal and slidable connection with the ruler 10.
Patent GB-598387-A (GB)
Title: Improvements in or relating to door or window bolting devices
IPC: E05C9/04
Filed: 1945-08-08
Abstract: 598,387. Bolt fastenings. KEARNEY, A. R. Aug. 8, 1945, No. 20271. [Class 44] In a bolting device of the espagnolette type in which the bolts are connected to a pair of slides 9, 10, adapted to be moved in opposite directions in a casing by rotation of a member 5 carrying pins 6, 7 which engage in transverse slots 20 in the slides, the latter are provided with looking recesses which receive the pins or part of the same so as to lock the bolts in shot position. Locking recesses may also be arranged to co - operate with the pins to lock the bolts in the withdrawn position. For this purpose the slides, shaped as shown in Fig. 4, are provided with recesses 23, 25 at the ends, which receive the pins when the bolts are shot, (Fig. 2), and with recesses 22, 24 in which the pins engage when the bolts are withdrawn, (Fig. 1). The slides are made of half the inside width of the casing, so that guides are not necessary, and a cover plate 28 retains them in the casing.
Patent GB-629708-A (GB)
Title: Improvements in or relating to wool or like bale ties
IPC: B65D63/16
Filed: 1947-07-28
Abstract: 629,708. Bale tie fasteners. SHACKLES PROPRIETARY, Ltd. July 28, 1947, No. 20290. Convention date, Aug. 1, 1946. [Class 43] In a bale tie comprising a metal plate 5 with a central flexible tongue 7 depending from one end 6a of an aperture 6 therein, one end of a metal bale band being looped round the tongue 7 and associated end of the plate, and the free end of the band being passed down through the aperture 6 to lie beneath the fixed end of the band, the free end bar 8 of the plate 5 is initially inclined upwards, and a transverse weakened section 13 is provided in the plate in alignment with the root of the tongue 7 so that the parts 15 bordering the tongue, together with the free end bar 8 of the plate, can be deflected. As shown, the weakened section 13 is formed by making recesses 11, 12 on opposite edges 5a of the plate 5, the centres of the recesses being slightly in advance of the root 14 of the tongue 7. In another form, Fig. 5 (not shown), the sides of the aperture 6 diverge towards the edges of the plate 5 in the direction of the root of the tongue 7, so that narrow portions of metal, at which the deflectable parts 15 of the plate may bend, are formed between said edges and root. When the plate is in position and the band is tensioned, on expansion of the bale, the parts 15 bend at the weakened section 13 and the tongue 7 is deflected, so that the tongue 7 and portion 15 approach one another to grip the ends of the band, the inclined end bar 8 of the plate finally lying parallel to the bale. Specification 393,063, [Group XVII], is referred to.
Patent GB-148383-A (GB)
Title: A divided jaw for chucks
IPC: B23B31/16
Filed: 1920-07-09
Abstract: 148,383. Friedmann, D. T. Nov. 17, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Chucks.-A two-part jaw for a chuck comprises a work-holding portion 2, which is pivotally mounted on a base portion 1 adapted to be radially adjusted in the chuck body. The base portion has a a dovetail projection 3 engaging a corresponding recess in the work-holding member. A spring-pressed pin 7 coacts with one of two recesses 6 so that the work-holding member may be quickly turned. on a pivot 4 from one working position to the other. When the work is to be chucked eccentrically the jaws may be turned so that their full gripping surfaces are operative. A modification is described in which any tendency-due to wear-of the work to turn on an axis at right-angles to the pivot 4 is resisted by curved projections on the base portion which engage corresponding slots in the work-holding member.
Patent GB-942239-A (GB)
Title: Tee pipe fitting
IPC: F16L41/08
Filed: 1962-05-28
Abstract: 942,239. Junction pieces. G. E. MORRISON. May 28, 1962, No. 20395/62. Heading F2G. A saddle-type Tee fitting for a pipeline comprises a hollow body provided with a mouth portion having a cylindrical bore 10, and with a flared flange 11 of elongated form, e.g. elliptical, at one end of the bore, the wall of the body being thicker in the area of the junction of the flange with the mouth portion than it is at the edge of the flange and at the outer end of the mouth portion; the said thicker portion varies in thickness in a circumferential direction from a maximum thickness on the longitudinal axis of the fitting to a minimum thickness on the transverse axis of the fitting. The length of the bore may be greater in the transverse than in the longitudinal direction of the fitting, and there may be integral strengthening ribs 12.
Patent GB-1435717-A (GB)
Title: Open-end spinning machine including a device for the interim  storage of a surplus length of yarn
IPC: D01H4/48
Filed: 1973-04-30
Abstract: 1435717 Open end spinning; storing surplus yarn SKF KUGELLAGERFABRIKEN GmbH 30 April 1973 [29 April 1972] 20429/73 Heading D1D In an open-end spinning machine, upon starting, for example after yarn repair, a yarn reserve is created by a movable lever, and surplus yarn is sucked as a loop into a chamber, 'the loop diminishing as the yarn reaches a predetermined tension. Reserveforming lever 11, Fig. 1, is located between draw-off rollers 4a, 4b and bobbin 21, as is suction tube 40 forming temporary loop 42 of surplus yarn. Tube 40 is connected to means 32 which exhausts spinning chamber 9. The tube end may be flared, Fig. 2. Repairing yarn break. When a break is detected by detector 2, rollers 4a, 4b are moved from drive roller 5 and stopped, the feeding of sliver 27 is stopped, device 7 parts the yarn, and the cover of chamber 9 is pivoted open. The cut yarn and remaining fibre is sucked into chamber 32. The spinning chamber reserves spinning, and roller 4b is moved to engage roller 5 to back feed the yarn, whose movement is detected by detector 2. After a measured time interval roller 4a engages roller 5 to forward the yarn.
Patent GB-914605-A (GB)
Title: Improvements relating to colour television receivers
Inventor: OXENHAM JOHN KENNETH
IPC: H04N9/24
Filed: 1959-06-15
Abstract: 914,605. Colour television. SYLVANIA-THORN COLOUR TELEVISION LABORATORIES Ltd. May 20, 1960 [June 15, 1959], No. 20500/59. Class 40 (3). In an arrangement for transferring the modulation from a chrominance sub-carrier signal to an index-frequency carrier derived from the traversal of colour stripes on a cathode-ray tube screen, the sub-carrier is demodulated at three different phase angles by means of demodulators V1(a V2(a) and V3(a) and the resulting modulation signals remodulated on to the index-frequency carrier by means of modulators V1(b), V2(b) and V3(b). Each demodulator is connected to the associated modulator to form a cascade stage, a filter F1 and a sub-carrier trap circuit 77 being included between the stages to ensure that only the modulation signals are transferred. Earthed-base transistor stages may replace the valve stages shown, the collectors of the demodulators being connected to the emitters of the modulators. The chrominance sub-carrier is applied to the anodes of the demodulators by transformer LL, L1, L2, L3 and sub-carrier reference signals are applied in appropriate phases to the grids. In a modified arrangement, Fig. 3 (not shown), the sub-carrier is applied to the grids and the reference signals to the cathodes. The invention is described as applied to the N.T.S.C. system. The demodulators are operated at phase angles of 121‹, 219‹ and 353‹ to give the signals 0.90(R-M), 0.83(G-M) and 0.67(B-M), where M = <SP>1</SP>/ 3 (R+G+B). In the modulators the signals are modulated on to the index-frequency carrier at phase angles of 0‹, 120‹ and 240‹. The signals are made equal in amplitude by making the gains of demodulators or modulator different or by selecting appropriate proportions of the signals as they appear across resistors R1 in the couplings between the stages. The gains of the demodulators may be made different by choice of ratios in transformer LL, L1, L2, L3. The modulators receive the index frequency carrier on the grids and may be arranged to operate with signals which are either at 120‹ phase intervals or all in phase. In the latter case delay lines are associated with the combining circuit EF in the anode circuits to bring the modulator outputs into the desired 120‹  phase relationship. A signal of the form Y-M may be derived from the signals R-M, B-M and G-M by means not shown. Reference is made to an arrangement in which the demodulators are operated at more convenient phase-angles (e.g. 0‹, 120‹ and 240‹) and the resulting signals are matrixed to give suitable signals to apply to the modulators. Specification 895,772 is referred to.
Patent GB-336276-A (GB)
Title: Improvements in the manufacture and production of esters
IPC: C11C3/02
Filed: 1929-07-04
Abstract: 336,276. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 4, 1929. Fats and fatty oils, purifying.-Fats and fatty oils are freed from fatty acids by treatment with polyhydric alcohols e.g. at 150-300‹ C. and reduced pressure. The component of lower boiling point is led in vapour or mist form, if desired in admixture with an inert carrier gas or vapour such as hydrogen, nitrogen or water vapour, into the liquid or liquefied component of higher boiling point, kept at a temperature above the boiling point of the lower boiling component, the latter being introduced, if desired in the presence of catalysts or fillers and in a cycle, in such a rapid stream and in such an excess that the whole or greater part of the higher boiling com. ponent is converted into foam. Catalysts mentioned are metal soaps e.g. magnesium oleate, phosphoric acid and zinc chloride. Specification 163,352 is referred to.
Patent GB-910985-A (GB)
Title: A method of finely dividing higher alcohols
IPC: C09K23/00
Filed: 1961-06-07
Abstract: An alcohol which is solid at room temperatures is finely divided by adding from 2 to 25 parts by weight of the alcohol to 100 parts of a solvent consisting of a water-soluble oxygen-containing organic compound either alone or in admixture with water, heating the resulting mixture to temperature above the melting point of the alcohol, cooling the mixture with agitation to below the melting point of the alcohol and recovering the finely divided particles of the alcohol so produced.  Suitable alcohols are saturated and unsaturated aliphatic alcohols, ether alcohols and alky substituted cycloparaffinic alcohols having from 14 to 30 carbon atoms in the molecule, e.g. hexadecanol, octadecanol, nonadecanol, eicosanol, docasanol, pentacosanol, pentadecanol, trans-octadecenol, 2-hexadecyloxyethanol, hexadecyloxyethoxyethanol and branched C12-alkylcyclohexanol.  Suitable solvents are aliphatic alcohols containing 1-4 carbon atoms, glycols, ethylene glycol monoethers, glycerol, and ketnes.  The solvent may be added to the alcohol after it has been melted.
Patent GB-1044515-A (GB)
Title: Improvements relating to current monitoring arrangements
Inventor: WHITE GEOFFREY
IPC: G01R15/20
Filed: 1963-05-23
Abstract: 1,044,515. Automatic current control. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 10, 1964 [May 23,1963], No. 20658/63. Heading G3R. [Also in Divisions G4, H2 and H3] A direct current comparator, more particularly for controlling an electric motor, comprises a Hall plate located in a gap in a magnetic core carrying a flux which is dependent upon a D.C. reference current and which is opposed by a flux dependent upon a D.C. signal current so that the output from the Hall plate depends in magnitude and sense upon the relative values of the reference and signal currents. In Fig. 1 (not shown) the reference D.C. current is applied to winding 3 and the D.C. motor supply lead is looped through the core at 4<SP>1</SP>. The Hall plate 5 is supplied with input current which is preferably in the form of D.C.pulses so that the peak amplitude may be larger than the maximum permissible steady value. The resulting Hall output at transformer T is in the form of pulses whose amplitude and sense depends upon the difference between the reference and motor current. These pulses are amplified and rectified and then applied to a Schmitt trigger so that its state depends on whether the motor current is larger or smaller than the reference. The control circuit of Fig. 1 may replace the units 3, 4 10 and 19 of the motor control circuit illustrated in Fig. 2 (not shown) and described in Specification 1, 044, 514. To start the motor the reference current is increased until the trigger changes over and this causes pulses to be applied to a silicon controlled rectifier 12 to cause the motor IF, 1a to be energized. The motor runs and increases in speed until until the current exceeds the reference value when the trigger circuit changes over, ceasing the supply of pulses to the controlled rectifier 12 and transferring them to a controlled rectifier 14 so that rectifier 12 is extinguished. The motor continues to be energized by discharge of the series inductor 2 until the motor current drops to a value that causes the trigger circuit to change over again, whereupon the rectifier 12 is again energized.
Patent GB-1531398-A (GB)
Title: Tractor step
IPC: B60R3/00
Filed: 1977-05-17
Abstract: 1531398 Tractor steps GENERAL MOTORS CORP 17 May 1977 [4 June 1976] 20674/77 Heading B7B In a tractor step designed to avoid damage on encountering an obstacle, a foot supporting plate 36 is connected to flexible cable 42, 44 by members 46 which permit limited pivotal movement at the connections, and brackets 54 secured to the upper ends of the cables are pivotally mounted on a tractor frame 32 to permit pivotal movement of the foot supporting plate in a vertical plane.
Patent GB-738389-A (GB)
Title: Improvements in the manufacture of hosiery with french feet
Inventor: BAHNER JOHANNES
IPC: D04B9/46
Filed: 1952-08-19
Abstract: 738,389. Knitting. ELBEO-WERKE GES. Aug. 19, 1952, No. 20774/52. Class 74 (2). Before beginning the toe reinforcement, a French foot blank is so widened from width b to width e, on both sides, that the outermost lines of fashioning marks c are formed where, in the seamed condition of the article, the sides of the foot will be disposed and the toe narrowing begins in a course lying between a third and a half of the way along the reinforced part f. The widening is effected by an outer large fashioning box which transfers loops outwardly two needle spaces, and an inner small box, which transfers further loops outwardly one needle space, the large box being racked inwardly, one needle space, free of loops, to close up the boxes, before knitting of the next course; this cycle is repeated as often as desired to produce the fashioning of Fig. 3. Toe fashioning is effected by narrowing simultaneously with both boxes by two needle spaces and then racking the large box outwardly, free of loops, by two needle spaces and making a further two needle narrowing by means of it, thus narrowing by four loops at each side, in the course as in Fig. 4.
Patent GB-510294-A (GB)
Title: Improvements in and relating to percolator devices
IPC: A47J31/30
Filed: 1938-07-13
Abstract: 510,294. Coffee &c. percolators. SCHNITZLER, K. July 13, 1938, No. 20796. Convention date, Sept. 14, 1937. [Class 129] A percolator device consists of a dip tube 6 adapted to be inserted through the neck of a water heating vessel 14 such dip tube having the lower half 1 of the percolator chamber permanently fixed thereto while the upper half 2 of the chamber is releasably secured by a nut 9 which is provided on the underside of a hand grip 10 and engages a screw thread at the top of the tube 6, a sieve 5 being held at the junction of the two halves of toe chamber. In operation the pressure generated in the heating vessel forces water up the. tube to pass through holes 8 to the material 13 to be infused and out through a discharge tube 3. Spring clips 16 hold the percolator device but yield if the pressure is excessive. In a modification the water is discharged at the top of the dip tube on to a basket-like sieve depending into the lower half of the percolator head which then has the discharge tube 3.