baber/WOPTO huggingface dataset:
Patent GB-1324586-A (GB)
Title: Convergence arrangement for colour tv
IPC: H04N9/28
Filed: 1972-03-09
Abstract: 1324586 Cathode-ray tube circuits INTERNATIONAL STANDARD ELECTRIC CORP 9 March 1972 [12 March 1971 30 July 1971] 10939/72 Heading H4T  Dynamic convergence correction waveforms for a three beam colour television display cathode-ray tube are produced by suitably matrixing semi-parabolic waves of line and frame frequency. As shown in Fig. 2 parabolic waves 15 and 19, derived respectively from the line and frame deflection circuits, are supplied to similar circuits 10, 11 and 12, 13 (including a line frequency sawtooth generator 36 in circuit 11 and a frame frequency sawtooth generator in circuit 13) which operate to provide the semi-parabolic wave outputs 22, 23 and 24, 25. The latter are then supplied via impedance matching transistor amplifiers T1, T2, T3 and T4 to a matrix circuit 26 in which the various proportions required to produce the convergence correction waveform are determined by adjustment of the various potentiometers shown. Outputs for the red, green and blue beam corrections are then supplied via respective power transistors 30, 31 and 32 to the associated convergence coils. A modification of the matrix circuit in which additional transistor amplifiers are employed to make the adjustment of individual potentiometer substantially independent of one another is described with reference to Fig. 3 (not shown).
Patent GB-1518613-A (GB)
Title: Radiographic intensifying screens
IPC: G03C5/17
Filed: 1976-03-18
Abstract: 1518613 Phosphor screens AGFA-GEVAERT 4 March 1977 [18 March 1976] 10973/76 Heading C4S [Also in Division H5] A phosphor screen which includes a rare earth compound is provided with a light diffusing layer formed of light scattering volumes, of a mean size not larger than 20 Ám, and distributed at random in a binder medium, or partially embedded therein, to reduce the effect of radioactive impurities present in the phosphor on an associated silver halide film  when the screen is used as an X-ray intensifier in radiography. The diffusing layer may act as a support for the phosphor screen, and may itself be coated with silver halide solution. The light scattering volumes may be solid e.g. a rare-earthfree phosphor such as CaWO 4 ; or of TiO 3  or SiO 2 ; or gaseous-e.g. nitrogen bubbles released from a diazonium compound; or liquid. The phosphor screen itself preferably includes phosphors having the formulawhere M is at least one of Y, La, or Gd. M' is at least one of Dy, Er, Eu, Ho, Nd, Pr, Sm, Tb, Tm, and Yb X is sulphur or halogen n is 0À0002 to 0À2, and w is 1 when X is halogen, or is 2 when X is sulphur. Other preferred phosphors are of formula where X is halogen, n is from 0À006 to 0À0001, and the halogen is present from the stoichiometric amount to about 2À5 percent deviation therefrom, or of formula where X is chlorine or bromine w is from 0À0005 to 0À006 mole of the oxyhalide, and y is from 0À00005 to 0À005 per mole of the oxyhalide.  Cerium may partially replace lanthanum.
Patent GB-274950-A (GB)
Title: Improvements in or relating to rock-drills and the like
IPC: E21B19/081
Filed: 1926-04-27
Abstract: 274,950. Holman, J. L., and Holman, P. M. April 27, 1926. Percussive drills.-The feed nut of a rock drill or like tool is locked by a lock nut 15 or other retaining member which is automatically tightened by the thrust transmitted by some part of the mechanism. For example, teeth 24 on the nut 15 are arranged to gear with teeth 23 on the ratchet ring of the twist mechanism, no separate retainer for the ring being used.
Patent GB-453365-A (GB)
Title: Improvements in the manufacture and production of azo dyestuffs containing metals
IPC: C09B45/48
Filed: 1935-04-11
Abstract: Complex metal compounds of azo dyes are made by subjecting the metal-containing azo dyes derived from diazotized 2-aminophenol-4-sulphonic acids substituted in the 5-position or the corresponding alkoxy derivatives and o-hydroxy coupling components to a treatment with acids or agents supplying acids (e.g. mineral or strong organic acids such as chloror trichloracetic acids) under such conditions that the sulphonic acid group in the 4-position of the benzene nucleus is split off. The metal compounds may be prepared while splitting off simultaneously the sulphonic acid group.  Wool, silk, leather and varnish colours are obtained and also pigments.  In examples: (1) and (2) the chromium compound of the dyestuff 5-nitro-2-amino-1-methoxybenzene-4-sulphonic acid --> 2-naphthol-3 : 6-disulphonic acid or 1-naphthol-3 : 8-disulphonic acid is heated with dilute sulphuric acid under pressure (reddish blue and green-blue); (3) the dyestuff 5 - chloro - 2 - amino - 1 - methoxybenzene - 4 - sulphonic acid --> 2-naphthol-6-sulphonic acid is treated with chromium oxide and formic acid and the moist acid product is diluted with water and heated under pressure (bluish Bordeaux red on wool); (4) the chromium compound of the dyestuff 5-nitro-2-amino-1-methoxybenzene-4-sulphonic acid --> b -naphthol is heated with sulphuric acid; the product is insoluble in water but soluble in organic solvents and colours varnish lacquers reddish blue.  Samples have been furnished under Sect. 2 (5) of the products obtained by treating the dyestuffs 5-nitro-2-amino-1-methoxybenzene-4-sulphonic acid --> 2-naphthol-3 : 6-disulphonic acid and 5-chloro-2-amino-1-methoxybenzene-4-sulphonic acid --> 2-naphthol-6-sulphonic with chromium oxide and sulphuric acid and heating under pressure.  Specifications 296,819, [Class 2 (iii)], and 395,968 are referred to.
Patent GB-928651-A (GB)
Title: Bottle cleanliness inspection apparatus
IPC: B08B9/46
Filed: 1961-03-28
Abstract: 928,651. Photo-electric bottle inspection apparatus. BARRY-WEHMILLER MACHINERY CO. March 28, 1961 [April 11, 1960], No. 11269/61. Class 40 (3). Apparatus for inspecting bottles for cleanliness, e.g. dirt particles on the bottoms of the bottles, comprises a source of illumination opposite and below the bottom of a bottle to produce an illuminated image on a fixed photo-electric means positioned opposite and above the top of the bottle and arranged to receive the illuminated image and to operate to detect a change in the illuminated image, in combination with means for rotating said illuminated image relative to said photo-cell means. A bottle 10 is moved from a conveyer to the inspection position by rotatable star wheels 14A, 14B having retaining pockets 14A<SP>1</SP>, 14B<SP>1</SP> and a spring locating abutment 19. Light from a source 16 is projected through a diffusing screen 24 and axially through the bottle 10 to lenses 26, 44 between which is mounted a Dove prism 28 rotated by a motor 42. The source 16 is energized by a constant voltage source 18 and a variable transformer which can be used to vary the intensity of the light beam in accordance with the nature of the bottle material. The lenses 26, 44 which form an image of the bottom of the bottle on to the prism 28 and then on to a mask 50 carrying an arrangement of photo-cells, are mounted in rotatably adjustable plate members 27 and 45, each carrying two additional lenses, to provide different lens combinations for bottles of different sizes and heights. In the bottle-examining position a star wheel 56 engaged by the top portion of the bottle 10 rotates a slotted shutter 60 to a position in which light from a source 62 can pass to a control photo-cell 63. The examining cells are arranged in a spiral pattern and are provided with masks so that their operative portions, indicated in black in Fig. 2 (not shown), are disposed in such a way that during rotation of the prism 28 all parts of the image of the bottom of the bottle are examined by the light-sensitive surfaces. In the circuit arrangement, Fig. 3, the cells 64A ... 64E with biasing potentiometers 65A ... 65E are connected in series to a doubletride amplifier 78 coupled via a valve 80 to a thyratron valve 76. When the bottle is in position, a pulse from the photo-cell 63 operates a valve 72 to trigger a one-shot multivibrator 74 to apply to the thyratron 76 a pulse which is not of itself sufficient to render it conducting, but which in combination with a pulse derived from the valves 78, 80 in response to operation of one or more of the cells 64A ... 64E triggers the valve 76 to operate a relay 82 actuating by contact 82A a bottle-reject arrangement 84 which controls a suction valve 17, Fig. 1, to remove the bottle and pass it to a reject container. The recharging of a capacitor 86 cuts off the valve 76 and releases relay 82 in readiness for a subsequent examining operation.
Patent GB-377194-A (GB)
Title: Improvements in and connected with sweeps and like agricultural apparatus
IPC: A01D87/08
Filed: 1931-04-16
Abstract: 377,194. Tractor propelled agricultural machines. ALLMAN, E. W. J., Martins House, Birdham Road, Chichester. April 16, 1931, No. 11300. [Classes 6 (i) and 6 (iii).] A hay sweep, or other harvesting or agricultural device is secured in front of a tractor by a rearward extension of the device that lies midway between the front steering wheel of the tractor being pivoted to a bracket connected to the front axle or front end of the tractor, the agricultural device being steered about the pivoting device simultaneously with the normal steering of the tractor. In the form shown a sweep comprises a V-shaped frame 1 to which is pivoted an auxiliary frame 3 carrying forwardly projecting tines 2 the rear end of the frame 1 having journalled therein a spigot 9 extending upwardly from a fork 10 in which a steering wheel 11 carried by the spigot rotates. A plate 8 extends from the frame 1 to the front axle 22 of the tractor being connected thereto by a pivot pin 25 that passes through a fork 23 bolted to the centre of the axle. The fork 10 has lateral extensions 12 from which cables 13, 14 pass over a pulley 15 to rearward extensions 16 of the steering arms of the tractor. The axle of the wheel 11 is carried in slots in the fork 10 so that the wheel can adjust itself should the direction of movement of the machine be reversed. A helical spring 27 holds the tines yieldingly in contact with the ground. To lift the tines the fall 30 of a tackle 37, 38 connected to the frame 1 and an upwardly projecting bracket 29 on the tine frame, is carried rearwardly to a hand-operated winch on the tractor.
Patent GB-399572-A (GB)
Title: Improvements in or relating to apparatus or plant for cooking or frying foodstuffs
IPC: A47J37/12
Filed: 1932-04-20
Abstract: 399,572. Cooking in fat and oil ; heating oil by electricity. REAVELL, J. A., 5, Grosvenor Gardens, London. April 20, 1932, No. 11311. [Class 28 (i).] In apparatus or plant for cooking or frying foodstuffs in edible fats or oils, the fat or oil employed is heated by circulating it through an electric heater located externally of the cooking or frying pan, the arrangement being such that the fat or oil circulates continuously in a closed circuit comprising the heater, a circulating pump and one or more cooking or frying pans ; the circuit may also comprise one or more filtering means. The arrangement shown in Fig. 1 comprises a cooking or frying pan a having outlets i, j for the fat or oil opening into a compartment h, a circulating pump d, an electric heater b located immediately below the pan a, and a conduit c for conducting the heated fat or oil back into the pan. The compartment h contains two filters f, f<1> connected to the pump d through a three-way tap e so that either filter may be isolated. The conduit m connecting the pump to the heater b may be provided with a valve controlled drain pipe n. A weir g or other suitable means to equally distribute the fat or oil over the pan may be provided near the outlet end of the conduit c. A perforated grid or plate q may be arranged in the lower portion of the pan to support the food. The heater may comprise a number of narrowly spaced parallel resistance elements o, Fig. 3, preferably in the form of thin metallic ribbons or strips between which the oil or fat is caused to flow, mounted on a base of electrically insulating material p ; the elements are so interconnected that the current is caused to flow in opposite directions in adjacent elements. In the arrangement shown in Fig. 5 a number of cooking or frying pans A, A<1> are employed connected in a circulating system comprising filters F, F<1>, a circulating pump D and an electric heater B ; the connections may be such that either of the filters or any one of the pans may be cut out of the circuit. In both arrangements thermostatic means may be provided for controlling the supply of current to the heater or for controlling the speed of movement of the fat or oil through the heater or for controlling the effective value of the heating area employed.
Patent GB-715162-A (GB)
Title: Improvements in surface condensers
IPC: B01D5/00
Filed: 1952-05-06
Abstract: 715,162. Surface condensers. AKTIEBOLAGET DE LAVALS ANGTURBIN. May 6, 1952 [June 29, 1951]; No. 11376/52. Class 64(3) In a surface condenser, e.g. for steam, cooling liquid such as water flows in series through two or more groups of tubes arranged in diverging rows which may radiate from a common centre (see Fig. 2), the group 25-26 of tubes which the water first enters having greater angular divergence of the rows than the other group 27-28 or groups. This is said to maintain the steam velocity since the greatest divergence is of the coldest tubes 25-26 which produce the most intense condensation. Each group of tubes comprises two nests 25, 26 and 27, 28. The whole cylindrical bundle of tubes, carried by the tube plates 5, 6, is located eccentrically with its centre below that of a horizontal cylindrical container 1 having a top inlet 2 for steam and a bottom outlet 3 for condensate. Tapering steam channels 29 are thus formed at each side of the bundle and the steam flows from thence directly to the tube nest 28 and below condensate guide-plates 24 to the top of each tube nest 25, 26, 27. Air, separated from the steam, collects in two hoods extending along the middle of the tube nest 25, formed by plates 14, 18 and containing a tube nest 15. Through pipes 16 and headers 17 the air is drawn off by a pump. The cooling water, from an inlet 9, Fig. 1, passes into a header 10, through the tube-group 25-26 and nest 15 to a header 11. A header 12 with an outlet 13 is divided from the header 10 by a partition 19 and the water passes back through the tubegroup 27-28 into this outlet header. There may be extra tube-groups and partitions to give more than two passes of the cooling water and vertical partitions in the headers to divide the cooling water flow and an extra inlet and outlet so that the condenser is in two halves which can operate independently with regard to the water.
Patent GB-798760-A (GB)
Title: Improvements in or relating to positioning mechanisms for mine winder cages or the like
Inventor: FRIEDLANDER ERICH SIEGFRIED
IPC: B66B1/42
Filed: 1956-04-13
Abstract: 798,760. Mine cage apparatus. GENERAL ELECTRIC CO., Ltd. April 12, 1957 [April 13, 1956], No. 11404/56. Class 78 (3). The position of a stopped mine cage in its shaft is adjusted by deflecting the hauling cable 3 from its normal run. The deflection is effected between the winding drum 1 and the head sheave (not shown) by a guide 7 (Fig. 2), which is pivoted about an axis 9 by a pulley mechanism 10, 11, 12 and a conical winch drum 13 driven by a constant driving torque motor 14. In a modification (Fig. 3), a grooved shoe 15 is pivoted about an axis 17 by a cam mechanism 19, 20, 21, and an hydraulic servomotor 18. In a further modification (not shown), the cable is deflected by a pair of toggle links the free ends of which are pivoted to the deflecting member and a fixed point respectively and the driving force being applied at the pivot between the links to separate them against the action of a spring.
Patent GB-233142-A (GB)
Title: New or improved ladies' undergarment
IPC: A41C3/08
Filed: 1924-05-08
Abstract: 233,142. Allen, E. T. May 8, 1924. BrassiÞres and camisoles of the " slip-on " type are made with a wide extensible band 2 at the lower part.
Patent GB-452323-A (GB)
Title: Improvements in overwinding prevention gear for winding engines
IPC: B66B5/08
Filed: 1935-04-13
Abstract: 452,323. Preventing overwinding. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and RAY, A., c/o Sneyd Collieries, Ltd., Burslem, Stokeon-Trent. April 13, 1935, No. 11511. [Class 78 (v)] In overwinding-preventing gear in which the brakes are first applied and if necessary the power cut off when the cage approaches the end of the wind at excessive speed, the application of the brakes is controlled by the pressure of the fluid in a dashpot, through the agency of an auxiliary piston which is substantially smaller in cross-section than the dashpot cylinder. In the form shown, a crank 1, geared to the winding-drum so as to make less than half a revolution during the complete wind, has a pin-and-slot connection with a rod 6 thus moving the latter downwards towards the end of the run. This movement rocks the lever 11 and through the adjustable rod 13 also rocks the lever 12 on the top of the cam 17 so that the cylinder 16 of the dashpot is moved upwards relatively to the fixed piston 24. The continual variation of the fulcrum of the lever 12 during its rolling movement on the cam, speeds up the movement of the cylinder 16 as the winding speed decreases, thus maintaining an approximate constant speed of the cylinder during winding at safe speeds. Two cams 17 of varying height are employed, either of which can be set to contact with the lever 12. The use of the flatter cam causes the rod 6 to communicate a slower movement to the cylinder for a given winding speed and is used when winding materials as distinct from winding men. The movement of the cylinder transfers fluid to the annular chamber 21 first through the holes 46 and later through an adjustable needle valve (not shown). When the speed of the cylinder exceeds a predetermined value, the rising pressure raises the auxiliary piston 28. This movement rotates a shaft 33 clockwise, as viewed in Fig. 3, and thus rotates the triangular lever 34 to release the arm 35 on the links 36, thus allowing the latter to be pulled downwards by the spring 40 to rotate the shaft 38 to apply the brake. On the return or downward stroke of the cylinder 16, the liquid passes freely through the non-return valve 22. At the close of the restoring operation, a bent arm on the dashpot cylinder re-sets the arm on the shaft 33 that contacts with the auxiliary piston rod. A modified form is described for double-drum winding-machines.
Patent GB-1424814-A (GB)
Title: Machines for assembling elements
IPC: B21L9/02
Filed: 1973-03-09
Abstract: 1424814 Making chains; assembling force fits FMC CORP 9 March 1973 [20 March 1972] 11556/73 Headings B3A and B3U A chain is assembled on apparatus comprising a carrier having pockets to receive chain elements and means to assemble the elements in the pockets. The apparatus of Fig. 1 comprises a cylindrical assembly rotated in bearings 48, 50 by motor 24, and made up of a central element receiving section 34, a drum 36 of aligning elements, and a drum 38 of ram elements. The central section 34 consists of (a) a toothed wheel 74, Figs. 5 and 8, on to alternate teeth of which chain elements 60 are fed from shoot 122, (b) rings 77 and 78 defining pockets 84, 90 into which side bar links 62 are fed also from shoot 122, and pockets 86 into which rivet pins 64 are fed from shoot 120, (c) on to plates 100, 115 in which alignment, ram, and back-up elements slide, and (d) hub portions 34a, 34b. Downstream of the infeed zone of Fig. 5, the pockets are covered by hoods 118, 119 (Fig. 8). The left hand drum 36 comprises a ring of blocks 160 (some shown in Fig. 12) each reciprocable by fixed cams 138a, 140a, and each supporting four alignment rods 162 by bores 166 containing springs 162. Each rod 162 passes through a back-up member 98 (see Fig. 8) movable axially by fixed cam rings 112. The right hand drum 38 comprises a ring of blocks 170 (Fig. 12) reciprocable by fixed cams 138, 140, and each connected to four rams 116 having reduced ends 116a, Fig. 8. As the assembly rotates, the elements 60, 62, 64 are fed into their respective pockets in approximately correct relative positions, Fig. 5. Back-up elements 98 are positioned by cams 112, Fig. 8, to define side walls to confine side links 62 on the left. Downstream of the shoots, the rods 162 are moved to the right, Fig. 8, to align apertures in elements 60, 62, then the rams 116 are advanced to insert the rivet pins 64. The back up elements become unrestrained by cams 112 and are contacted by blocks 160 and moved to the right to force the left side bar links 62 on to the rivet pins. The assembled chain is stripped from wheel 74 and led to another machine where the rivet ends are peened.
Patent GB-555239-A (GB)
Title: Electrical wiring systems
IPC: H01R25/16
Filed: 1942-01-27
Abstract: 555,239. Conduits. O'BRIEN, J. F. Jan. 27, 1942, No. 11641/43. Divided out of 555,219. [Class 36] In a wiring system having a moulding 10 formed in unit lengths having male and female ends 12, 13 to fit adjacent units together, a plurality of conductors a<SP>1</SP>, b<SP>1</SP>, c' are mounted in the moulding, being supported in notches in transverse walls 23, 23a. The transverse walls are arranged in pairs having a space between each pair to receive a spacer member 27 formed with notches 25a, 26a that co-operate with the notches 25, 26 in the transverse walls to retain the conductors b<SP>1</SP>, c<SP>1</SP> therein. The moulding is open at the rear for the insertion of these elements which are enclosed by a back plate 30. The construction is described as used in conjunction with the system described in Specification 555,219.
Patent GB-686854-A (GB)
Title: Improvements in or relating to devices or appliances for use in the teaching of ballroom dancing
IPC: G09B19/00
Filed: 1950-05-11
Abstract: 686,854. Body harness. LLOYD, P. R. May 8, 1951 [May 11, 1950], No. 11716/50. Class 141. [Also in Group XV] A harness for wear by a man learning ballroom dancing includes support means whereby his left arm is correctly positioned for holding his partner's right hand and his right arm is positioned for correctly placing around his partner's back. As shown a metal or plastic support channel 11 for strapping at 11a, 11b above and below the left elbow, and a plate 15 for support of the upper part of the right arm, are mounted on slide blocks 12, 13 on a squaresection rod 10 fixed to a frame 16 strapped to the user's back by a canvas, leather, &c waist belt 17 (passing through eyes 16c, 16d) and shoulder straps 18, 19 (passing through eyes 10a., 10e and 10b, 16f); the extension rod 14 of the plate 15 is adjustably secured in the slide block 13 by a set-screw 13b, and stops such as 10d are screwed to the ends of the rod 10. The frame parts may be padded and the edges of parts 11 and 15 lipped or bevelled.