baber/WOPTO huggingface dataset:
Patent GB-1341600-A (GB)
Title: Colour signal producing system utilizing spatial colour encoding and comb filtering
IPC: H04N9/07
Filed: 1971-04-19
Abstract: 1341600 Colour television camera RCA CORPORATION 19 April 1971 [11 Feb 1970] 21355/71 Heading H4F A filter assembly 24 is placed in front of a vidicon camera tube 26, the filter assembly 24 comprising two superimposed gratings, one with alternate cyan and transparent stripes and the other with alternate yellow and transparent stripes. The stripes of the two gratings are of equal widths and are at equal and opposite angles to the direction of line scan of tube 26 so that the output of tube 26 contains two carrier waves at the same frequency, one due to each grating. The angles of inclination of the gratings may be such that a phase change of 90 degrees occurs in each carrier wave between successive scanning lines in which case the circuit shown in Fig. 1 may be used to separate the carriers, a red-representative carrier (due to the cyan-transparent stripes) being produced from adder 32 and a blue-representative carrier (due to the yellow-transparent stripes) being produced from adder 35. Luminance signals are obtained from filters 27 and 29. In an alternative embodiment (Fig. 4, not shown) adder 32 receives inputs from band-pass filter 30 via an inverter (51) and from delay 31 via a 90 degree phase shifter, and adder 35 receives inputs from delay 31 and from the inverter (51) via a 90 degree phase shifter. In a further embodiment two one line delays coupled in series are used (Fig. 7, not shown), the signals from three succeeding line scans being used, the output from the first one line delay being passed to adders 32 35 via a inverting doubling amplifier and a 90 degree phase shifter, the adders 32 and 35 each also receiving inputs from filter 30 and the second one line delay either directly or via a 180 degree phase shifter. To produce directly a green - representative carrier a magenta-transparent striped grating having its stripes running at right-angles or obliquely to the line scanning direction may be included in filter assembly 24. The width of these stripes may be such that the green carrier is at a higher frequency than the red and blue carriers and may then be removed by a band-pass filter. Alternatively, when using an oblique magenta-transparent grating, the green carrier frequency may be arranged to be lower than the red and blue carrier frequencies, the green carrier interleaving with the high frequency portion of the luminance signal. The green and luminance signals may be separated using a one-line delay, a signal adder and signal subtractor (Fig. 13, not shown). The filter assembly 24 may alternatively be used to encode light to be recorded on film for subsequent scanning.
Patent GB-411315-A (GB)
Title: Improvements in and relating to packing devices for shafts and like bodies
IPC: F16C33/74
Filed: 1933-07-29
Abstract: 411,315. Stuffing - box substitutes. MURRAY, W., and WESTON & CO., Ltd., C., 2, Portsmouth Street, London. July 29, 1933, No. 21407. [Class 122 (v).] Oil seal comprises a leather ring b secured in a case a by means of a washer c and a ring d which is secured by turning over the edge a<2> of the case. The shaft-engaging portion of the ring b is bevelled at x and is pressed on to the shaft by the frusto-conoidal skirt e<1> of a ring e pressed axially by an undulated spring. The portion e<1> is extended beyond the end of the leather, and its extreme end is bevelled and bears on the shaft so as to shear the oil or dust film and so prevent the ingress of undesirable matter. Specification 270,960, [Class 122 (v)], is referred to.
Patent GB-358600-A (GB)
Title: Improvements in or relating to the construction of grinding elements for roller grinding mills
IPC: B02C4/22
Filed: 1930-07-15
Abstract: 358,600. Roller-and-breast, disc, &c. grinding or crushing mills. ROGERS, F. H., 181, Queen Victoria Street, London.- (Grinding Mixing Separating Engineering Co., Soc. Anon.; Ampsin-lez-Huy, Belgium.) July 15, 1930, No. 21430. [Class 59.] The fixed or movable grinding bar a of a roller- and-breast or a disc mill is so disposed as to make an angle greater than a rightangle to the grinding surface of the roll b at the leading edge of the bar, for the prevention of air pockets and grit accumulation. As shown, the radially inclined bar a is provided with a triangular extension c. The roll b may be reciprocated. In a modification the bar is inclined to the radius. The trailing edge of the bar may be bevelled.
Patent GB-1011722-A (GB)
Title: Improvements in or relating to the feeding of webs of material
Inventor: JACKSON DONALD RICHARD PATRICK
IPC: B29C65/22
Filed: 1961-06-14
Abstract: 1,011,722. Applying tear strips to wrappers. MOLINS ORGANISATION Ltd. June 13, 1962 [June 14, 1961; Feb. 22, 1962], Nos. 21434/61 and 6983/62. Heading B8C. [Also in Divisions B5 and B6] Tear-strips are cut transversely from a web T (Fig. 1A) and are carried into contact with a continuously moving web W by a rotary device 19. In the form shown the rotary device 29 carries a blade 13 which co-operates with a fixed blade 12 to sever the tear strips from the intermittently advanced web T. A suction head S mounted on an arm 16 oscillated about a pivot 17 on the member 19 by a fixed cam 22 then carries the severed tear strip into engagement with the web W and presses it against an electric heating device 37 which is oscillated about the shaft of the member 19 as the tear strip is secured to the web W. The securing may be by heat sealing, or by drawing a stripe of adhesive applied by a wick 2b against which the web is pressed by a projection 2a on a roller 2. The rotary device 19 may be heated. In an alternative arrangement shown in the drawings of the first Provisional Specification (not shown), the oscillating carriage 37 for the heat sealing device is replaced by an arcuate guide adjacent the rotary member 19 and separated from the web by an endless belt moving at the same speed as the web. In this arrangement two knives 13, and two suction carriers S are mounted on the rotary member 19. When the spacing of the tear strips is to be increased a pair of mutilated rollers 5, 6 may cause the portion of web which is receiving a tear strip to travel at a higher speed than the remainder of the web, thus forming loops in the web before the main feed rollers 7, 8 so that the average speed of the web may be lower than the peripheral speed of the head S carrying the tear strip. In this arrangement the web slips on the roller 2. A brake 1a on a feed roller 1 maintains the tension in the web. The heating member may include an element 36 (Fig. 3A) fed with electric current and pressed by spring-biased plungers 45 against the web. The element 36 is tensioned by a spring 42 biasing its carrier 43 about a hinge 41.
Patent GB-1464543-A (GB)
IPC: H01P9/00
Filed: 1973-05-05
Abstract: 1464543 Phase-correcting microwave circuits MARCONI CO Ltd 5 March 1974 [5 May 1973] 21480/73 Heading H1W A phase-correcting circuit 15, Fig. 4, comprises a 3 db. coupler 18 having conjugate arms terminated by stubs 20, 22 providing susceptances. The stubs are in the form of waveguides having sections which can be relatively displaced in the H-plane to provide adjustable susceptance. The circuit 15 is inserted in a waveguide 16 and is intended to produce a more nearly linear relationship between phase and frequency in the waveguide. The waveguide 16 provides phase delay in a band-separating network 10<SP>1</SP> consisting of two 3 db. couples 12, 14 connected by two paths, one of which (16) provides a phase delay equal to an odd multiple of # for one frequency and to an even multiple of # for an adjacent frequency. The two frequencies f1,f2 are separated in known fashion by the network. The linearizing network 15 improves the distribution of frequencies f1, f2, f3, &c. in a multiplexer of the kind using a number of separating circuits (Fig. 4) to form a branching network (see Fig. 2, not shown). The preferred constructional form of the phase-correcting network is shown in Fig. 6. The susceptances are provided by waveguides stubs 46 and adjustment is made by moving the block 44 relative to the 3 db. coupler in the direction of the H-plane.
Patent GB-1417167-A (GB)
Title: Cooling arrangements
IPC: H01J23/033
Filed: 1972-05-09
Abstract: 1417167 Travelling-wave tubes ENGLISH ELECTRIC VALVE CO Ltd 17 April 1973 [9 May 1972] 21484/72 Heading H1D A detachable cooling assembly for a travelling- wave tube includes a plurality of members of a material which is resilient and of good thermal conductivity, each member having an axial passage, which passages are aligned to form a cylindrical passage for the receipt of the collector electrode of the travelling-wave tube, each member having an axial slot extending from its inner to its outer surface to permit flexing to accommodate collectors of differing cross-section, and each member being positioned between a pair of cooling fins having apertures which are larger than those of the members in the unflexed state. As shown, collets 14-preferably of bronze or graphiteresiliently grip the collector 12 by virtue of the slots 21, 22 and 23, the collets being maintained in position upon withdrawal of the travelling-wave tube by the engagement of their projecting portions 20 with the cooling fins 1, 2, 3 and 4, the whole cooling assembly being clamped together and supported from the periodic permanent magnet mount 8 by rods 7 bearing springs 19 and thermally insulating washers 17. Metal bellows 16 prevents radiation of microwaves from the collector; the rings 20 on collets 14 permit lateral movement of the travelling-wave tube with respect to the mount 8 for adjustment of the focusing; and surfaces of the collector assembly which are movable relative to the collector are lubricated with graphite.
Patent GB-184793-A (GB)
Title: Improvements in wire chain making machines
IPC: B21L11/00
Filed: 1922-08-08
Abstract: 184,793. Bek, E. G., (Assignee of Bccker, E.). Aug. 16, 1921, [Convention date]. Chains.-A solder-feeding device for wirechain making machines is made as an independent structure mounted on the machine frame, and consists of a guide provided with means for feeding a solder thread therethrough and mounted so that it may be moved to insert the projecting end of the thread into the joint before the closing thereof, and then returned out of the way of the link-forming elements. The guide B is mounted on a support C<1> which is pivoted at C<2> to a slide D mounted on guides D' so that it may be removed from the machine. The support has a screw top #<1> which is pressed against an abutment by a spring # so as to place the projecting thread b of solder laterally into the joint. The guide is raised on its pivot by a cam-operated lever #<3> engaging a hooked bar #<4> so as to raise it from the rotatable and vertically moving pincers a. The solder is fed through the guide by a pair of rollers mounted therein, one of which carries a ratchet-wheel which is engaged by a pawl on a spring-pressed rod b<5>, which is pushed forwards by an arm b<7> either fixed to the frame or operated by a cam, and returned by the spring to effect the feed. After the link is closed by a succession of strokes of the die h, Fig. 5, the solder is severed by a tool m, mounted in a slotted guide in the die head and operated during the last, stroke of the die h against the action of a spring m<1> by a slotted lever n<1> engaged by a cam-operated finger n<2>. The guide B may have a rectilinear movement.
Patent GB-184468-A (GB)
Title: Improvements in or relating to the manufacture of articles of rubber sponge or the like
IPC: B29D30/06
Filed: 1922-08-08
Abstract: 184,468. Pfleumer, F. Aug. 5, 1921, [Convention date]. Spongy india-rubber india-rubber, colouring; vulcanizing-moulds. - In the process for producing rubber sponge by vulcanizing a mixing subjected to gas under pressure, the rubber is subdivided into particles, threads, plates, &c. as thin as possible to facilitate the permeation of the mass by the gas. Finelydivided rubber is placed in moulds capable of being compressed in an autoclave and gas under pressure is admitted at 6 to permeate the mass. The mass is partially vulcanized, mechanical pressure is applied to the moulds by a ram 11 to cause the rubber particles to cohere, and the vulcanization is completed. The mechanical pressure is removed and then the gas pressure whereupon the gas entrapped in the pores of the rubber expands and forms cells. In a modification, the particles are made to cohere by reducing the external gas pressure during vulcanization which causes the particles to swell and fill the interstices between them. In this modification it is necessary to press the particles lightly to give them sufficient coherence to be handled and to enclose them in a porous slightly elastic cover of papier mÔchÚ, cellulose, &c. By mixing powders, threads, &c. of different colours, variegated effects may be obtained.
Patent GB-1301123-A (GB)
Title: Parametric device
Inventor: WANLASS LESLIE KENT
IPC: H03K17/82
Filed: 1970-05-05
Abstract: 1301123 Parametrically-excited resonators; filler networks L K WANLASS 5 May 1970 [5 May 1969] 21678/70 Addition to 1206279 Headings H3B and H3U Parametrically-excited resonators, each tuned to a different frequency, are used as selective filters in a common A.C. circuit. As shown in Fig. 6, each resonator includes an input or control winding 133-136, and a tuned circuit comprising an output winding 141, 143, 144, 145 and a capacitor 142, 146, 147, 148. The control windings are connected in parallel to an A.C. input 132 and each resonator is tuned to a different input frequency component. The input and output windings of a resonator are both associated with a common core structure but are wholly decoupled, the resonator comprising either two cores 31, 32 wound as shown in Fig. 5 or using the core structure disclosed in Specification 1,153,901. No bias is used so that the core inductance is cyclically varied by the control current at twice the input frequency.
Patent GB-765204-A (GB)
Title: Improvements relating to motor vehicle bodies
Inventor: PALMER GERALD MARLEY
IPC: B60K15/04
Filed: 1954-07-24
Abstract: 765,204. Vehicle bodies. MORRIS MOTORS, Ltd. Oct. 7,1955 [July 24, 1954], No. 21680/54. Class 108(1). Beneath the trunk deck D is a spare wheel compartment B and a fuel tank A, and the boot lid F is provided with a hole 4 through which the filler spout K projects when the lid is closed.
Patent GB-359458-A (GB)
Title: Improvements in chewing gum and the methods of making the same
IPC: A23G4/04
Filed: 1930-07-17
Abstract: 359,458. Chewing gum ; moulding by rolling machines. MUSTIN, G. B., Herford Place, Lansdowne, Pennsylvania, U.S.A. July 17, 1930, No. 21687. [Class 28 (i).] A piece of chewing gum is composed of a thin ply or layer of masticatable material interposed between and pressed hard into contact with two thin plies of layers of lozenge confectionery whereby material of the inner layer penetrates slightly into the material of the outer layers and the lozenge material which is normally brittle when dry remains flexible when united to the gum ; the main flavour of the chewing gum is put in the layer of lozenge material. The lozenge material comprises a doughlike mass of powdered sugar, flavouring, and a binding gum such as gum arabic or gum tragacanth. The masticatable material may have a relatively high insoluble content. The chewing gum may be made by interposing a relatively thick sheet of masticatable material 2 between two relatively thick sheets of lozenge material 1 and rolling the composite sheet until it is reduced to the desired thickness, e.g. by passing a narrow strip from the composite sheet through sets of coacting rollers 4a, 4b, Fig. 10, one roller of each pair being provided with flanges 11 to prevent any lateral flow of the material. The rolling may take place at a temperature at which the ductility of the masticatable material, the ductility of which increases with temperature, is substantially the same as that of the lozenge material, the ductility of which is not substantially changed by variation in temperature. While the rolled sheet is still in a soft and pliable condition it is scored, e.g. by means of knives 12, Fig. 11, so that when cool, the sheet may be broken into a number of small pieces. The plastic sheet may also be obtained in the form of small pieces by passing it between a pair of coacting rollers 4c, 4d, Fig. 14, each roller having in its surface a series of recesses 14, whereby the chewing gum is obtained in the form of small " pillows " 7a, Fig. 16, or the sheet may be passed between a pair of coacting rollers 4e, 4f, Fig. 19, each roller having a series of circumferential grooves 14a substantially semicircular in cross section, whereby the chewing gum is obtained in the form of cylindrical pencils 7b, Fig. 21. In both these methods of moulding the chewing gum the lozenge material is forced over the sides and ends of the masticatable material so that the masticatable material is completely enclosed. To ensure that the masticatable material of the pencils is completely enclosed the pencil may be rolled by hand on a hard surface while the lozenge material is still plastic.
Patent GB-298327-A (GB)
Title: Improvements in or relating to change speed mechanism
IPC: F16H61/02
Filed: 1927-08-17
Abstract: 298,327. McGill, H. Aug. 17, 1927. variable-speed gearing is controlled automatically by the movement of a piston 27, Fig. 2, effected by a pump 30 driven from the driven shaft 9. A lay shaft 6 is constantly driven from driving-shaft 4 and carries gear 12, 14. Direct drive and two reduced speeds are effected by the selective clutching to shaft 9 of rings 17, 13, 15. Each clutch has radial spring-returned plungers 20, Fig. 6, which engage recesses 21, Fig. 2, in the rings. The operation is effected by the axial sliding of cam bars 23 which are coupled to the piston 27, which in this form, surrounds shaft 9. A spring 34 constantly thrusts the piston towards the lowest-gear position, and disconnection of drive is effected by sliding the gear 14 out of mesh. The pump 30 thrusts preferably oil through a pipe into annular chamber behind piston 27 so a.s to displace the piston. There are escape ports 38, 39 the effect of which is that the gear-controlling displacements of piston 27 are the proper function of the speed of the driven shaft 9. A bye-pass may be provided to enable, say, a vehicle to descend hills in low gear.
Patent GB-391809-A (GB)
Title: Improvements in or relating to knitting mechanisms
IPC: D04B23/00
Filed: 1931-11-03
Abstract: 391,809. Knitting-machines. BRITISH CELANESE, Ltd., 22, Hanover Square, London, KINSELLA, E., PRATT, J. G., and KELSALL, B., c/o British Celanese, Ltd., Spondon, near Derby. Nov. 3, 1931, No. 21766/32. Divided on 391,803. Drawings to Specification. [Class 74 (ii).] The frames of warp &c. knitting-machines include vertical triangulated members connected together by transverse stiffened plate members of girder form. The girder sections are cast in one piece, are readily removable to facilitate assembly and repairs, and to increase the general strengthening effect their joints are arranged to be staggered. A number of suitable forms are shown. Specifications 331,202, [Class 74 (ii), Knitting &c.], 391,803, 391,804, 391,806, 391,807, 391,808, 391,810, and 391,811 are referred to.
Patent GB-863982-A (GB)
Title: Improvement in or relating to rotary pumps
IPC: F04C2/46
Filed: 1957-07-09
Abstract: 863,982. Rotary pumps. HINCKLEY, J. N. July 9, 1957 [Sept. 21, 1956], No. 21785/57. Class 110 (2). A rotary pump 10, which may be used for conveying viscous foodstuffs, is removably mounted on a base 11 provided with a thrustbearing 12 and a needle bearing 13 to receive the pump shaft 14, which is driven by means of a pulley 16. The pump casing positioned by dowel pins 22, 23 on a plate 17 integral with the base 11 consists of end-plates 20, 21 and a cylindrical body 18 coaxial with the shaft 14. Pins 26, 27, 28, 29 passing through the endplates 20, 21 and body are screwed into the plate 17 and secured by means of wing-nuts 30. Grooves 31, 32 in the plates 20, 21, respectively receive O-rings to provide a seal between the body and the plates, and the plate 20 also houses an O-ring 33 as a seal around the shaft. The rotor is mounted to float axially on the shaft by means of a groove engaging a key 36, so that it can be withdrawn when the plate 21 is removed. The rotor, which is formed in one piece, comprises two impellers 39, 40 arranged side-by-side and separated by a wall 41, each impeller having two lobes out-of-phase by 90 degrees with the lobes of the other impeller. The wall 41 is circular and equal in diameter to the pumping chamber and to the major axes of the impellers. Inlet and outlet passages 42, 43 respectively in the body 18 widen to the width of the chamber 19. Abutments 47, 48 hinged on a shaft 49 journalled in the end-plates 20, 21 are pressed against the impellers by spring-stressed pins 53, 59, respectively, and each lobe is shaped to give simple harmonic motion to the abutments. The outlet communicates with the inlet 42 through a passage 62 in the body controlled by a relief valve 61, which can be adjusted by means of a tensioning-nut 64. In a modification, the end-plate 21 is replaced by a plate having a boss housing a bearing and a locking-nut for an extension of the drive-shaft. This bearing may be carbon-graphite. U.S.A. Specification 2,717,555 is referred to.
Patent GB-394503-A (GB)
Title: Improvements in jigging conveyors and/or separators
IPC: B65G27/24
Filed: 1932-08-04
Abstract: 394,503. Sifting-apparatus. WALLACE, W. J., Belmont, Tavistock Grove, West Croydon. Aug. 4, 1932, Nos. 21881 and 28464. [Class 117.] Relates to jigging conveyers or separators of the kind comprising a fixed member, a vibrating member, electromagnetic means mounted on the fixed member, a make-andbreak device operated by and arranged in circuit with said electromagnetic means, and resilient means connecting said fixed and vibrating members which opposes the action of said electromagnetic means. According to the invention one element of the electromagnetic means is secured to the fixed member and the other element to the vibrating member between the ends of said members and one element of the make-and-break device is directly mounted on the vibrating member and the other on the fixed member. As shown in the Figure, the vibrating member 5, connected to the fixed member 1 by four spring members 10, is provided with a tray or sieve 9 and a discharge opening 8 and a pair of armatures 12 co-operating with magnets 11. When the latter are energized, the member 5 is drawn forward whereby contact is broken between a spring 14 and a screw 20 and the magnets de-energized. The member 5 is retracted by members 10 so as to close the circuit the cycle of movements then being repeated.