baber/WOPTO huggingface dataset:
Patent GB-1414773-A (GB)
Title: Hue control circuit for colour television receivers
IPC: H04N9/64
Filed: 1974-04-23
Abstract: 1414773 Colour television VICTOR CO OF JAPAN Ltd 23 April 1974 [25 April 1973] 17663/74 Heading H4F The red content of an image displayed on a cathode-ray tube 10 is reduced when a detector 17 detects that the amplitude of the luminance signal or the red primary signal exceeds a predetermined level relative to the luminance signal amplitude for reference white. The red intensity may be reduced or the blue or green intensity may be increased in response to such detection. This is stated to remove undesirable redish cast in white areas and, when it is the red primary signal which is detected, in red areas, without affecting flesh tones. The detector output may control a luminance amplifier 16 connected to the red cathode of tube 10, or a red colour signal amplifier (14, Figs. 3, 4, not shown). The detector 17 may include a diode (Figs. 5-8, not shown). The detected predetermined level may be 50% of the luminance signal amplitude for reference white.
Patent GB-1325381-A (GB)
Title: Automatic doffing apparatus
IPC: B65H67/04
Filed: 1971-05-27
Abstract: 1325381 Doffing and donning; continuous winding; supplying bobbins DAIWA BOSEKI K K and TOYODA JIDOSHOKKI SEISAKUSHO K K 27 May 1971 [1 June 1970 20 June 1970] 17689/71 Headings D1F and D1J A travelling apparatus for doffing full packages from a plurality of side-by-side winding machines comprises a rotary doffer having means for releasing a completed package from its holder, a package receiving plate for receiving the doffed package, and a catcher for feeding an empty bobbin to said holder, said doffer making one complete revolution about a horizontal shaft during a doffing operation, there being means for cutting the yarn supply to the completed package and suction means for taking up the cut yarn from the supply source. The drum driven package 6, Fig. 12a, is held between a pair of arms 5 pivotally mounted at 5a. When the winding is complete the rotary doffer 30 makes one complete revolution to cause:- (a) a curved package receiving plate 24 to scoop up the package 6 and raise it off the driving drum 3, (b) a cam plate 23 to move between the arms 5 and move them apart Fig. 12b to release the wound package, (c) the doffed package to roll down a guide plate 25 of the doffer 30 and onto a conveyor 8, Fig. 12d; (d) a catcher 26 on the doffer 30 to approach and pick up an empty bobbin 10, Fig. 13a, and (e) the catcher 26 to swing about a pivot so as to face away from the arms 5, Fig. 13c, and then deliver the empty bobbin into the arms 5 just as the cam plate 23 moves away from the arms 5 to permit them to close on the empty bobbin 10. When a doffing operation is to take place at a winding station an arm 15 swings down to the full line setting, Fig. 3a, to cut the yarn supply to the completed package 6. A suction nozzle on the arm 15 takes up the yarn issuing from a spinning unit 1 and the arm 15 then moves to the setting shown in broken lines. An empty bobbin 10 is moved towards the rotational locus B of the catcher 26 so as to cause the empty bobbin 10 to engage the yarn being drawn out of the spinning unit 1. When the catcher 26 has moved the empty bobbin 10, with yarn passing over it, into the arms 5, the cutting means on the arm 15 again severs the running yarn and a lower on the arm 15 causes the free yarn end to lap around the empty bobbin so that winding can recommence. Conveying empty bobbins to catcher 26 The conveyor 51, Fig. 2, includes a plurality of spaced blocks continuously roated by a chain. The bobbins in the hopper 50 are carried upwardly by the blocks 51 and dropped into a groove 52 from whence they are shifted axially to a nipper mechanism. The nipper mechanism transfers the empty bobbin to a position on the locut of rotation B of the aforesaid catcher 26.
Patent GB-733173-A (GB)
Title: Improvements in or relating to window-raisers for automotive vehicles
Inventor: VARGAS RAFAEL
IPC: E05F11/48
Filed: 1952-07-15
Abstract: 733,173. Window regulators. STANDARD PRODUCTS (FRANCE). July 15, 1952, No. 17800/52. Class 20 (3).  A window raiser of the cable-operated type has both ends 6, 7 of a cable 1 winding in a helical groove 3 extending from the respective lateral edges 5, 4 of a common rotary drum 2 which is rotatable about a fixed axis 8 without being biased by a spring, so that one cable side is wound whilst the other is unwound to the same amount when the drum is rotated by a control handle 12 on a pinion 10 meshing with a concentric toothed wheel 9 fast on the drum 2.
Patent GB-887331-A (GB)
Title: Improvements in or relating to foot corrective pad with toe loop
IPC: A61F13/06
Filed: 1958-06-04
Abstract: 887,331. Foot cushioning pads. SCHOLL MFG. CO. Ltd. June 4, 1958 [Nov. 27, 1957], No. 17921/58. Class 81 (2). A foot cushioning pad is made from a blank comprising two broad crescent-shaped body parts joined by a narrow strip and the body parts are superimposed on each other and secured together so that the strip forms a toe loop. In its simplest form the two body parts 11, 12 are joined by the strip 14 and are made from synthetic foam material having a perforated coating of plastic film on one side. The parts 11, 12 are bent round so that one lies over the other and they are secured together by adhesive, leaving the strip 14 in an approximately circular form as the toe loop. In other forms, the body parts may have holes to accommodate a corn or an additional pad may be formed at an intermediate point along the connecting strip. Specification 887,330 is referred to.
Patent GB-689797-A (GB)
Title: Improvements in or relating to type-high numbering machines
IPC: B41K3/10
Filed: 1950-07-18
Abstract: 689,797. Number-printing apparatus. BILSKY, H. July 2, 1951 [July 18, J950], No. 17944/50. Class 100(ii) [Also in Group XIX] In a numbering-machine as described in Specification 430,858 in which the numbering discs are advanced by a stepped pawl and overthrow of the discs is prevented by a straightedged member caused by a movable part of the mechanism to enter one of the spaces on each disc formed between the adjacent numbers thereon, the straight-edged member 22 has a small integral projection 24 at each end whereby it is pivoted in the machine. The projections 24 may be held in saw cuts in the side edges of the machine frame ends by a removable side plate. A leaf spring 26 riveted at 27 to a central lug 28 (or, according to the Provisional Specification, one or more integral resilient lugs acting as springs) moves the edge 23 away from the numbering wheels except when the movable pawl-carrying member engages two limbs 29.
Patent GB-596015-A (GB)
Title: Improvements in apparatus for use in playing games
IPC: A63F9/08
Filed: 1945-07-13
Abstract: 596,015. Puzzles. MACLENNAN, G. W. C. July 13, 1945, No. 17969. [Class 132 (iii)] A game or puzzle comprises a playing surface having, for each player, a set of four or more contiguous stations and a separate station connected with the two end stations and at least one other station by separate tracks, and a set of movable pieces. As shown, the playing surface 1 is a plastic disc containing shallow depressions 2, a depression 5 being connected by grooves 6 to the end depressions and an intermediate depression. Balls 4 are moved from station to station according to rules in order to obtain a predetermined arrangement. A form of apparatus for one player and different markings which can be put on the stations and pieces are described.
Patent GB-179772-A (GB)
Abstract: 179,772. Ball, W. March 29, 1921. Tyres, elastic, and tyre covers, tools for removing and replacing.-A Y-shaped device for manipulating split rims consists of three limbs a, c' connected by a pivot pin a'. Hooks a<2> on the limbs a engage the rim b. The limb c<l> is screw - threaded and connects with an oppositely-threaded limb c<2> by a hollow nut c to form a turn-buckle. The limb c<2> is formed with a hook c<3> to engage the rim, and may have a second hook c<4>. In a modification the limbs a are rigidly connected.
Patent GB-606252-A (GB)
Title: Improvements in or relating to liquid fuel supply systems for internal combustion engines
IPC: F02M69/00
Filed: 1946-06-14
Abstract: 606,252. Regulating. BENDIX AVIATION CORPORATION. June 14, 1946, No. 17983. Convention date, June 21, 1945. [Classes 7 (iii) and 7 (vi)] In a fuel supply system a pump 20 supplies fuel past a regulating valve 90 maintaining a constant pressure at A to an engine driven centrifugal impeller 48 producing a metering pressure at B proportional to the square of engine speed, the fuel passing through a metering orifice 56 and a diaphragm actuated regulating valve 68 to a nozzle 61 in the air intake pipe 10. The orifice 56 is controlled through a needle valve 14 by a capsule 124 subject to air intake pressure in the casing 126, the needle 114 being contoured to produce an enrichment at high power output. The springs 100, 76 acting on the regulating valves 90, 68 are adjusted so that the pressures at A and C are approximately equal, the valve 68 preferably opening at a pressure at C slightly lower than that at A to produce an idling enrichment. A pipe 64 facing the air flow introduces emulsifying air through passage 65, 63a into the fuel emerging from nozzle 61. The metering orifice may also be controlled by other engine variables such as temperature and exhaust back pressure, or by charging pressure in supercharged engines.
Patent GB-600720-A (GB)
Title: Improvements in roof and framework construction for buildings
IPC: E04B1/24
Filed: 1945-09-21
Abstract: 600,720. Roof and framework constructions. HITCHINS, W. G. Sept. 21, 1945, No. 18061/44. [Classes 20(ii) and 20(iv)] In a building having a framework of post members consisting of metal cores surrounded by timber cladding, a roof construction is provided in which the roof trusses have end shoes formed of twin gusset plates 18 carrying collar plates 19, which clamp on the tops of the cores 1 of the posts. The cores 1 of the posts of the building, which, as shown, is of the type described in Specification 5 5 4,2 7 1, are encased by timber pieces 2, 3 secured together as described in Specification 5 7 1,0 8 4. At first floor level short sheet metal members 10 of inverted channel section are threaded over and extend on both sides of the core and are straddled by members 12 of similar section extending between the posts to act as plates to carry the floor joists 14. The roof truss is formed by channel-sectioned rafters 15, housing battens 17, and tie-members 16 of inverted channel section. The twin gusset plates 18, of pentagonal shape, are secured to the ends of the rafters and the tiemembers, and the collar members 19 are riveted thereto at 21. Clamping bolts pass through sleeves 20 which pass through the plates 18 and are fixed to the members 19. Precast outer wall slabs 6 are secured to the post by sheet metal clips 7, the securing-screws engaging screwed sockets cast into the slabs. Inner wall slabs 9 are screwed to the inner cladding 2.
Patent GB-613204-A (GB)
Title: An improved press suitable for the extrusion of lead
IPC: B21C25/06
Filed: 1946-06-15
Abstract: 613,204. Extruding. BRITISH INSULATED CALLENDER'S CABLES, Ltd., HAMILTON, G. M., and LATIN, A. June 15, 1946, No. 18079. [Class 83 (iv)] In a lead press of the kind in which molton lead is poured into a cylindrical container, allowed to cool and then pressed by a ram through a die-box having an extrusion orifice, the plastic lead is subjected in the die-box to a stirring or mixing action exerted by a rotating member. Lead in the plastic state in the container 2, Fig. 1, is pressed by a ram 4 into a die-box 1 from which it is extruded between a point 8 and a die 9 to produce a sheath or tube. The point holder 7 is rotated and at its front end is formed with vanes or projections 14 which exert a stirring action on the lead. Escape of lead to the rear is prevented by helical grooves 19, 20 of steep pitch and opposite hands in the holder 7 and a bushing 5. The rear part of the die-box around the bushing may be cooled by liquid circulating through passages 21 and around the vanes 14 and point 8, the die-box may be heated, as by heating means within the space 13. In a modification, the diameter of the rotatable point holder is locally increased and that of the wall of the forming chamber locally decreased and slots 26, 27, Fig. 7, are cut in the annular projecting portions. The slots are inclined and are of opposite hand to effect mixing of the lead. In another form, Fig. 9, the point is of larger diameter at the rear and carries helicoidal blades 44 which decrease in height towards the front end of the point. In a further modification, the front end of the point holder is enlarged and cut to form a twostart thread. The blades 44 on the point as shown in Fig. 9 may be combined with the other stirring or mixing devices described.
Patent GB-145781-A (GB)
Title: Improvements in the method of discharging ammonium sulphate from saturater baths
IPC: C01C1/242
Filed: 1920-07-02
Abstract: The air employed to operate the siphons for discharging ammonium sulphate from saturators is heated so as to raise the temperature in the saturator liquor around the siphon, thus avoiding incrustation around the outlet.  The heating of the air may be sufficient to raise the temperature of the whole liquor appreciably.
Patent GB-708789-A (GB)
Title: Improvements in or relating to wardrobes
IPC: A47B61/00
Filed: 1952-07-18
Abstract: 708,789. Wardrobes. GOLDBERG, S. June 18, 1953 [July 18, 1952]; No. 18181/52. Class 52(1) An upper shelf or compartment in a wardrobe is accessible through separate doors 6, the main doors 2 being cut away 2a to' clear the upper doors.
Patent GB-1187493-A (GB)
Title: Printer
IPC: B41B17/10
Filed: 1967-04-20
Abstract: 1,187,493. Photographic type-composing apparatus. ITEK CORP. 20 April, 1967 [2 May, 1966], No. 18225/67. Heading B6W. A printer comprises a symbol storage medium (e.g. character belt 4) carrying a plurality of radiation transmissive symbols 14 and a separate symbol identification code 16 for each symbol, a plurality of sources 29 of electromagnetic radiation arranged to permit reproduction of a symbol on belt 4 on radiationsensitive recording medium 1, means for moving the storage medium to bring each of the symbols in turn into recording positions relative to each radiation source 29, means for detecting the codes of selected symbols and means for actuating a selected one of the radiation sources to cause the selected symbol to be reproduced in the selected position. Sensing devices 24 indicate the position of each character on continuously moving belt 4, to comporator 23 which also receives information regarding the required characters from a keyboard encoder 17 on a computer input. This information is used to trigger a selected flasher 29 and so build up a line of characters. The film is transported in a direction perpendicular to that of the belt to provide line spacing.
Patent GB-424999-A (GB)
Title: Improvements in, and relating to, tool holding chucks
IPC: B25D17/08
Filed: 1934-06-20
Abstract: 424,999. Sockets. HARDYPICK, Ltd., and RAYNER, P. T., Mining Tool & Mining Engineering Works, Heeley, Sheffield. June 20, 1934, No. 18272. [Class 83 (iii)] A tool-holding socket, more particularly for rock-drills, comprises a body a screwed at u to the driving shaft b and having a recess to receive the tapered end c of the drill d. A sleeve g screws at f on the body a and has an end flange providing a recess h through which an elongated collar e on the drill may be inserted and webs j behind which the collar may lodge, on rotation of the drill after insertion, to prevent axial withdrawal thereof. One edge of the collar engages a screw n in the sleeve g and is held in engagement therewith by means of a pawl m pivoted at k to the sleeve g behind one of the webs j. In the dotted line position in Fig. 2 the pawl m allows rotation and release of the drill and in the full line position forms a driving connection together with the screw n, between the sleeve and the collar e. The pawl may be locked in the inner position by means of an outer sleeve o screwing at p on the sleeve g. Tommy-bar holes r, s, t are provided in the body a and sleeves o, g respectively, and the screw threads u, f are lefthanded whilst the thread p is right-handed.
Patent GB-227744-A (GB)
Title: Improvements in spectacles and eyeglasses
IPC: G02C1/06
Filed: 1924-07-31
Abstract: 227,744. Preston, C. T. July 31, 1924. Spectacles and eyeglasses.-The frames of spectacles and eyeglasses are fitted with a screw a or projection e, for the purpose of engaging a notch c in the periphery of the lens, preventing axial rotation of the lens. The projection e may consist of a continuation of the bridge d.
Patent GB-448066-A (GB)
Title: Improvements in or relating to synchronising means for television and like purposes
IPC: H04N5/067
Filed: 1934-08-31
Abstract: 448,066. Television. CORK, E. C., 53, Stoneleigh Drive, Worcester Park, and MANIFOLD, M. BOWMAN-, Heathcot, Worplesdon Station, both in Surrey. Aug. 31, 1934, No. 18348/35. Divided out of 448,031. [Class 40 (iii)] Parts of long framing-signals are suppressed to form leading edges which occur at the same frequency as, and in phase with, the leading edges of the strip-synchronizing signals. Each mirror on a drum 7 sweeps an image of an illuminated slit 4 over photo-electric cells 8, 9 in immediate succession. The cell 8 is connected to supply suppressing-impulses in one sense, and the cell 9 supplies stripsynchronizing impulses in the opposite sense. Long framing impulses are applied to terminals 12 in the same sense as the strip impulses. A valve 11 has a grid bias 13, which cuts off the suppressing-impulses, except during the framing-impulse, and grid current, through a resistance 14, cuts off the strip impulse during the framing-impulse. In interlaced scanning the suppressing impulses are produced at a multiple of the strip frequency which is equal to the number of partial scans in a complete scan. Specifications 425,220, 443,699, and 448,031 are referred to.
Patent GB-341389-A (GB)
Title: Improvements in and relating to the production and use of benzanthrone derivatives
IPC: C09B3/26
Filed: 1929-07-05
Abstract: Benzanthrone derivatives.-Amino-dibenzanthrones are obtained on subjecting nitrodibenzanthronyls to acid reduction; aminodibenzanthronyls may be formed as by-products.  In examples (1) mono- and di-nitro-Bzl : Bzl1-dibenzanthronyls, obtained by nitration in sulphuric acid, are heated with aniline sulphate, aniline and zinc dust, the aniline may be replaced by bases, such as pyridine or quinoline, or by solvents, such as di- or tri-chlorbenzene, and the aniline sulphate by aniline hydrochloride, acetic acid or pyridine hydrochloride; the product from the dinitro derivative dyes cotton from the vat in reddish-violet shades, oxidized to dull green and changing in shade with acid to blueish-violet, and may be converted to another dyestuff, dyeing blue shades changing to green on oxidation, by diazotizing and boiling, and (2) nitro - 2 : 21 - dibenzanthronyl, obtained by nitrating in nitrobenzene, is heated with aniline hydrochloride, aniline and zinc dust ; the product dyes cotton blue shades oxidizing to blue green in the air, and converted to black by bleaching.
Patent GB-1175407-A (GB)
Title: Improvements in and relating to the Control of Direct Current Motors
Inventor: GOODRIDGE RICHARD JAMES
IPC: B65H23/198
Filed: 1967-04-21
Abstract: 1,175,407. Control of D.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 20 March, 1968 [21 April, 1967], No. 18444/67. Heading H2J. [Also in Division G3] A D.C. motor coupled to a reel of flexible material is controlled during a first period by varying the armature current in dependence upon the diameter of the coil and a desired tension in the material while keeping the field constant, and thereafter by varying the armature current according to the linear speed of and the desired tension in the material while varying the field to keep the back e.m.f. substantially constant. The armature current is measured at 14 and is compared with a reference at 13 to control a static converter or Ward-Leonard generator 3 supplying the armature 1. Two reference signals are produced and whichever is the greater is selected by a discriminator 14a. The first, which is effective up to full-speed at full field, is the product of T representing desired strip tension and a signal R representing the actual radius of the coil, which is deduced from measurements of the reel speed v and the strip speed f. The second reference is effective during field control and is the product of T and f. The signal T may be modified by a signal FS which is a function of reel speed to represent the effect of friction and windage, and also by an " extra torque signal " produced by multiplying an " accelerating signal " AS by a signal INS representing the inertia of the system, from a unit 23 responsive to the computed radius R. The product Tf may be modified by units 19 and 25 which introduce a value X representative of the slight change in back e.m. while it is held nominally constant. The back e.m. is measured at 6 and is shaped by a unit 9 to control a field amplifier 12 which has a feedback loop through a regulator 10.
Patent GB-979886-A (GB)
Title: Apparatus for forming a tobacco rod in tobacco manipulating machines
Inventor: KOERBER KURT
IPC: A24C5/39
Filed: 1962-05-14
Abstract: 979,886. Cigarette-making machines. K. KÍRBER. May 14, 1962, No. 18460/62. Heading A2C. In apparatus for producing a continuous tobacco rod, tobacco fibres 22 are showered on to a conveyer belt 3 by a distributer 1 which includes a worm 2 for aligning and deflecting the tobacco fibres. The aligned fibres are removed from the belt 3 by a spiked drum 7 and, after passing over a guide roller 8 and guide 9, are showered by a roll 10 on to a strip 11 of wrapper material, which is supported on an endless belt 13, for formation into a continuous rod. The belt 3 is arranged at least partially below the distributer 1 and may be perforated as at 6a, for co-operation with a suction chamber 5 or may be provided with spikes.
Patent GB-1255439-A (GB)
Title: Method of making vacuum-tight glass-to-metal seals
IPC: C03C23/00
Filed: 1970-04-17
Abstract: 1,255,439. Sealing metal to glass. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 17 April, 1970 [21 April, 1969 ; 25 Oct., 1969], No. 18505/70. Heading C1M. A method of sealing articles together in a vacuum-tight manner wherein the welding surfaces consist of a metal and a glass, comprising the steps of pressing together and heating the welding surfaces at a temperature which is lower than the softening temperature of the glass and lies between the temperature at which the vapour pressure of the metal is 10<SP>-10</SP> Torr and the melting point of the metal. The sealing pressure should be between 5 and 150 kg./sq. cm. and at least 50 kg./cm. when the metal welding surface is not free of oxide. The method is preferably carried out in an inert or reducing atmosphere. If the metal used is not aluminium a sealing temperature of not more than 90% of the melting point in C. of the metal is used. Examples are given of seals in which the metal is aluminium, lead, platinum, zinc, iron and nickel, and the glasses may be quartz, lead glass or borosilicates. The joining of two glass tubes by a metal ring is described. The method may be used for forming vacuumtight joints in electron valves.