baber/WOPTO huggingface dataset:
Patent GB-760261-A (GB)
Title: Improvements in and relating to false twisting devices for uptwisters and other textile twisting machines
Inventor: FINDLOW ERIC
IPC: D02G1/06
Filed: 1954-03-19
Abstract: 760,261. Twist tubes. SCRAGG & SONS, Ltd., E. March 15, 1955 [March 19, 1954], No. 7995/54. Class 120 (2). A false twisting device for an uptwister or other twisting machine has a base 10 that forms a lubricant reservoir and supports a tube 11, a second tube 15 mounted in bearings in the base 10 which are enclosed by a screw head 19, a driving wharf 16 mounted on the tube 15 and a guide eye, pin, rollers or the like carried on the tube 15 for contact with the yarn. A flange 21 may be formed on the tube 15 to prevent loss of lubricant supplied to the base 10 through an opening 23.
Patent GB-205435-A (GB)
Title: A method of and apparatus for separating seeds, and more particularly cotton seeds
IPC: B07B4/02
Filed: 1923-03-20
Abstract: 205,435. Wilbushewich, M. March 20, 1923. Feeding articles from hoppers and shoots; pneumatic separating.-A method of selecting seeds of the type having lint or fuzz adhering, such as cotton seeds, consists in removing the greater part of the adhering lint, sieving the seeds according to size and feeding them one at a time in front of a jet of air under sufficient pressure to carry them varying distances according to specific gravity and the amount of lint still adhering. The apparatus described comprises a hopper A to which the seeds previously treated to remove superfluous lint and sorted by sieves according to size are supplied and from which they are fed one at a time by a rotating toothed wheel C, into a pipe F. A jet of air is supplied by a nozzle h making an angle of less than 90‹ with the pipe F and carries the seeds into receptacles I .. VI arranged in a casing M with openings J for releasing the air. The sorted seeds are discharged through openings K<1> . . K<6>.
Patent GB-192958-A (GB)
Title: Improvements in lubricating devices
IPC: B63H23/36
Filed: 1922-03-21
Abstract: 192,958. Plummer, W. E., Kermode, W. M. B., Plummer, C., and Howard, J. March 21, 1922. Force-feed lubricating.-In a lubricating-system for the parts of a ship in which the supply is subjected to the static head of the ship's draught, the circulation of lubricant is controlled by an adjustable valve in the outlet from the parts to be lubricated. The bottom of a vessel 2 containing lubricant is connected by a pipe 3 with the tunnel service pipe 4 or other means of communication with the water outside the ship, the lubricant being displaced by the static head of water down a stand-pipe 6 to the stern-tube 8. From the tube 8 the lubricant passes to a pipe 9 which discharges through an adjustable valve 12 and an outlet 11 into a vessel 1. The pipe 9 may have an outlet 10 to the atmosphere above the water-line 5. When the vessel 2 is exhausted of lubricant, the water valve 13 is closed, the water is drained through a valve 14, and the vessel 2 is refilled from the vessel 1 through a valve 15.
Patent GB-1397511-A (GB)
Title: Apparatus for and method of processing wet strand-like material
IPC: B65H57/16
Filed: 1973-02-19
Abstract: 1397511 Microwave or dielectric drying OWENS - CORNING FIBERGLAS CORP 19 Feb 1973 [27 March 1972] 8130/73 Heading F4G Wet primary aggregated filament units, e.g. strands 22 having a tendency to where upon contact are advanced in separated relationship towards a collection zone and are subjected to microwave or dielectric heating in a confined space to dry them to a noncoherent state, the moisture therefrom being removed by gas flow through the space the dried units being gathered into multiple or aggregate units. Glass filaments 20 are extruded from a plurality of orifices in a molten state from a container 10 which maintains contained glass in a molten state. These filaments are combined into strands 22 by a comb-like gathering shoe 23, an applicator just above the shoe 23 applies a sizing or other coating liquid, e.g. an aqueous dispersion of a resorcinol formaldehyde resin, to the filaments 20, so that they cohere. The strands are then dried in a microwave, or dielectric unit 23 so that when the strands 22 are gathered they do not cohere. The strands 22 are gathered inside the unit 23, or just below it, or when they are at a final wound package stage. Hot or cold air or an inert gas enters a cylindrical resonant cavity 72 via an inlet 96 to control humidity therein, the cavity being excited by a magnetron 45 via a waveguide 46. Alternatively a coaxial cable with a loop coupling is used for the energy input. The air or gas may enter by the waveguide 46. The entering strands are guided by an insert 92, of nicarta or a ceramic as an electrically non-conducting material compatible with glass (although brass or graphite may be used), protected from the inside by lips 94. A similar insert, also protected, guides the emerging strands or bundle. The strands are then wound on to a collet 54 on a winding machine 40. If they are previously bundled, a traversing member 48 mounted for reciprocating motion on a support 50 guides the advancing bundle. The support 50 includes a rearward unit 56, a forward unit 58, and a cam housing 60. If the strands 22 are still separate, the traversing member has a row of teeth of incrementally increasing length to successively engage strands at varying distance from the support, so that each strand is separatively guided on to the collet for winding. The strands may be sliced into discrete lengths by a rotary cutter after leaving the collet, or they may be subsequently wound on to respective bobbins.
Patent GB-161426-A (GB)
Title: Means and apparatus for the collection of spare ends in looms for weaving
IPC: D03J3/00
Filed: 1920-03-19
Abstract: 161,426. Brown, S., and Wade, G. March 19, 1920. Yarns, warping and beaming.-The spare warp ends in looms are collected by winding them on a bobbin B loosely mounted on the tube of a ratchetwheel R driven by a pawl P on a lever L and a jack J. Drag-washers are interposed between the ratchet-wheel R and the bobbin, which is pressed on by a spring C and is thus frictionally driven so as to wind up the ends when any slack occurs. The tube is mounted on a shaft S on an arm A carrying a stop-pawl P<1>. The spare ends may be guided by a notched plate G reciprocated in a member G<1> by a link G<2> and wheel G<3> provided with teeth G<4> engaged by an arm or arms G<5> on the ratchet-wheel, so as to give an even wind. According to the Provisional Specification, the ratchet-wheel may be operated from the jack rod, " press-rod," or dobby shaft.
Patent GB-581917-A (GB)
Title: Improvements relating to hypodermic injectors
IPC: A61M5/28
Filed: 1944-05-01
Abstract: 581,917. Hypodermic injectors. UNIVERSAL METAL PRODUCTS, Ltd., and WERTHEIMER, E. G. May 1, 1944, No. 8161. [Class 81 (ii)] In a hypodermic injector comprising a collapsable tube or container a having a thin diaphragm b in its neck, the injection needle c is secured rigidly in a cap d which screws on to the tube neck, and the inner end of the needle projects into the cap, so that when the latter is screwed fully home to make a fluid-tight joint with the neck of the tube, the projecting end of the needle pierces the diaphragm. Prior to use, a washer g may prevent puncturing of the diaphragm and a packing washer may also be provided to make the fluid-tight joint. Specification 546,444 is referred to.
Patent GB-1076045-A (GB)
Title: Web winding apparatus
IPC: B65H18/20
Filed: 1964-10-02
Abstract: 1,076,045. Feeding webs. DIAMOND INTERNATIONAL CORPORATION. Oct. 2, 1964 [Dec. 5, 1963], No. 8231/67. Divided out of 1,076,044. Heading B6B. The subject-matter is the same as that of Specification 1,076,044.
Patent GB-669845-A (GB)
Title: Improvements in or relating to coaxially mounted crystals
Inventor: HOULDING NORMAN
IPC: H01P1/00
Filed: 1949-03-25
Abstract: 669,845. Crystal detectors. MINISTER OF SUPPLY. March 20, 1950 [March 25, 1949], No. 8251/49. Class 40 (v). A crystal rectifier of the type which is mounted coaxially within an outer conductor so as to form part of a coaxial transmission line comprises an outer conductor, a first inner conductor and a second inner conductor insulatedly supported coaxially within the outer conductor, a rectifying crystal mounted on a conducting stem which forms an integral part of the first inner conductor, and a cats whisker attached to the second inner conductor, the rectifying crystal and cats whisker being so mounted that a non-linear impedance contact is maintained between them, and the elements being arranged to give substantial electrical symmetry about said crystal in that the characteristic impedance and/or the electrical lengths of the coaxial transmission line constituted by said conducting stem and said outer conductor are arranged to be substantially the same as that of the coaxial transmission line constituted by said cats whisker and the outer conductor. As shown, the hollow cylindrical conductor 1 carries two insulating disc spacers 2 and 3. The spacer 2 carries a cylindrical conductor 4 which is coaxial with the conductor 1 and has a stem 5 upon which is mounted a crystal 6, a cylindrical conductor 7 which is coaxial with the conductor 1 being carried by the spacer 3 and having a cats whisker 8 mounted on it so that one end makes contact with the crystal. The conductor 1 is in two parts which are sweated together at 11 so that the correct contact pressure on the crystal is obtained during manufacture. The electrical lengths of the parts of the rectifier are made short compared with the wavelength in the transmission line at the highest radio frequency used and impedance discontinuities within the arrangement are kept to a minimum by suitable dimensioning of the parts in relation to each other. For connection in a transmission line each end may be provided with a plug or socket. In a modification the characteristic impedance of the transmission line formed by the stem' and the outer conductor is made the same as that of the line comprising the cats whisker by making the stem of as small a diameter as possible and the electrical length of the stem equal to that of the cats whisker. A plurality of cats whiskers may be employed. In this way the rectifier can be used in the reverse sense without disturbing the external impedance matching. The Provisional Specification describes also an arrangement in which a crystal is included in the inner conductor of a coaxial line and an electrical short circuit is placed across the line at such a distance from the crystal that the reactances at the working frequency presented by the crystal and short circuit respectively are substantially equal and opposite to each other.
Patent GB-276584-A (GB)
Title: Improvements in or relating to super-regenerative circuits for wireless receivers and the like
IPC: H03D11/02
Filed: 1927-03-25
Abstract: 276,584. Clausnitzer, R. A. Jan. 18, 1927, [Convention date]. Thermionic amplifiers and generators.-A plurality of superregenerative stages are provided in a wireless or like receiver, and the quenching oscillation is applied to successive valves in phase opposition, each valve being trigged into oscillation at the moment when the preceding and following valves are quenched. As shown in the Figure, four stages are provided, each stage comprising a valve a<1> - - a' back-coupled to the verge of oscillation. The tuned grid circuits of the first three stages are damped by resistances c<1> - - c<3>, and the back-coupling is provided by separate plate coils d<1> - - d<3>, and is regulated by series condensers e<1> - - e<3>. The first grid circuit is connected to an aerial r and is tuned to the frequency to be received. The grid circuits of the following valves may be tuned to multiples of this frequency. Amplified energy is passed from the plate circuit of each stage to the grid circuit of the following stage by coils f<1> - - f<3>. The fourth valve a<4> has its tuned circuit d<4>, b<4> connected at opposite ends to the grid and plate, the plate connection including an adjustable condenser e'; and an intermediate point of the coil d<4> is connected through a block condenser to the filament. The detector valve is connected across the terminals 1, 2 of a coil c<4> coupled to the coil d'. The quenching-oscillation is generated by the valves a<1> - - a' operating as a double pushpull pair. For this purpose the grid circuits of the valves a<1>, a<3> are connected in parallel to a coil i<1>, and the grid circuits of valves a<2>, a<4> to a coil i<2>, the junction point of the two coils i<1>, i<2> being connected to the filaments through a gridbias potentiometer. The coils i<1>, i<2> are shunted by a condenser k which determines the quenching-frequency. Similarly, the plate circuits of valves a<1>, a<3> include a coil m<1>, and the plate circuits of valves a<2>, a<4> a coil m<2>. The coils m<1>, m<2> are back-coupled to the grid coils i<1>, i<2> and their junction is connected to a high-tension source n. In this way the quenching oscillations bring the valves a<1>, a<3> into an oscillatory condition whilst the valves a<2>, a<4> are non-oscillatory and vice versa. The super-regenerative amplifier may be used as an intermediate frequency amplifier in a super-heterodyne receiver.
Patent GB-682015-A (GB)
Title: Centrifugal pumps
IPC: F04D29/14
Filed: 1950-04-04
Abstract: 682,015. Centrifugal pumps; stuffing-box substitutes. WILFLEY & SONS, Inc., A. R. April 4, 1950 [Dec. 16, 1949], No. 8414/50. Classes 110(i) and 122(v) A centrifugal pump comprising an auxiliary impeller disc mounted on the shaft of the pumping impeller and formed with blades on each face of the disc, and an annular chamber surrounding the auxiliary impeller and having an ingress opening around the shaft through which suspended solids can flow from the pump, is characterized by the provision of an egress duct spaced radially outward of the ingress opening and leading back from the annular chamber to the inlet side of the pump housing, the ingress opening being restricted so as to prevent oversize suspended solids from entering the chamber. When the pump is stationary, it is sealed against leakage by an annular member 37 which closes an annular gap 38 between the impeller shaft 10 and a wall P. When the pump is working, centrifugal weights 44 move the member 37 axially against the action of a spring 46 to open the gap 38. Leakage is now prevented by a sealing impeller 49, having long vanes 54 and short vanes 56. Intercalated with the vanes 54 are flow-splitting lugs (not shown). Liquid enters a sealing chamber 47 from the pump intake chamber 12a by way of a duct 51 and leaves by way of ducts 52. The liquid may contain solid particles, as of sand or pulp, the larger particles 60 being excluded by the restricted widths W<SP>1</SP> and W<SP>2</SP> of the duct 51 and of a passage 58 respectively. To prevent clogging of the ducts 52, their width W<SP>3</SP> is greater than W<SP>1</SP> or W<SP>2</SP>. The hubs of the pump impeller 16 and the sealing impeller 49 are formed with wave-like scallops S<SP>1</SP>, S<SP>2</SP>, between which is interposed a resilient coupling member 50 of rubber or the like. Bearings 33, 34 are housed in a tubular member 32 which is supported at one end by a pedestal 13 and is bolted at the other end to a cage 35 which extends into the pump housing and is sealed against it by a gland 22 secured by lugs 23. The member 32 is adjustably secured against longitudinal movement by a bifurcated lug 26 which is secured. between nuts 27, 28 on a stud 25 screwed into the pedestal 13. Specifications 153,783, [Class 110(i)], and 432,838 are referred to.
Patent GB-558161-A (GB)
Title: Improvements in or relating to ball and socket type joints
IPC: F16C11/04
Filed: 1942-06-19
Abstract: 558,161. Ball and socket joints. SILENTBLOC, Ltd. (Thiry, L.). June 19, 1942, No. 8423. [Class 65 (ii) ] In a ball and socket joint having a rubber &c. element 18 between ball 17 and socket 11, the rubber in the free state, Fig. 3, is thicker than in the assembled joint; and has a through opening which is smaller at the end 24 adjacent the stem end of the ball than at the other end. The top of the ball and rubber is covered by a rubber pad 19 which, in the free state, is of smaller diameter than the socket, so that when it is compressed by the cover plate 20, it flattens out to fill the socket above the ball and member 18. Fig. 1 shows two such joints for a shock absorber connected by a bar 10 forming part of the sockets and flanged over at 21 to hold the cover plate 20 on the pads 19.
Patent GB-944126-A (GB)
Title: Process for the preparation of printing plates
IPC: G03G5/06
Filed: 1960-03-10
Abstract: 944,126. Electrophotographic production of printing plates. KALLE A.G. March 10, 1960 [March 18, 1959), No. 8460/60. Headings G2H and G2M. [Also in Division H1] In the preparation of printing plates, a conductive support e.g. an aluminium foil, paper coated to resist penetration by a coating solution of a copper or zinc plate, is coated with an insulating coating comprising at least one organic photoconductive substance and a compound of high molecular weight containing groups conferring solubility in alkaline or basic liquids, electrostatically charged, exposed, developed and fixed to form a resist image on the coating, and then treated with an alkaline liquid to dissolve away the coating where it is not protected by the resist. The photoconductive substance may be an oxazole, a thiazole, an oxadiazole, e.g. as in Specification 851, 218, an imidazolone, an imidazolthione, a triazole, a triazine, a hydrazide, or a hydrazone. The alkaline-soluble compound may be vinyl polymers and interpolymers containing carboxylic acid, carboxylic anhydride, sulphonic acid, sulphonamide or sulphonimide groups such as polystyrene sulphonic acid; interpolymers of styrene with maleic anhydride, resins containing acid groups such as phthalic acid partial ester resins; polycarbonate resins, maleic acid resins, alkyd resins, or colophony resins;or highly polymeric polyacrylic acid sensitizers, e.g. dyestuffs, pigments and fillers may also be included. The developer may be a pigmented resin powder comprising a glass ball or iron powder carrier and a toner such as a polystyrene-colophony mixture of low melting point containing carbon black and spirit nigrosin fixed by heating or a similar toner in an insulating liquid. The alkaline liquid may comprise a solution in water or aliphatic ethers, lower ketones and esters, or solvents containing alcohol groups, of ammonia, alkali and alkaline earth metal hydroxides, alkaline phosphates and polyphosphates, lower alkyl (up to C 8 ) amines, ethylene diamines and polyamines, ethanolamines, piperidine and its N- methyl or N- ethyl derivatives, morpholine or acid amides such as dimethyl formamide or in some cases the liquid bases may be used undiluted. Thickeners such as polyvinyl alcohol, carboxymethyl or alkyl cellulose, or soluble starch may be added. To improve the hydrophilic qualities of the image-free non-printing parts of aluminium planographic plates water-soluble silicates may be included in the alkaline liquid. After treatment with the alkaline liquid, these plates are rinsed with water and may then be wiped over with diluted phosphoric acid to ready them for ink-reception. Examples are also given of producing a zinc relief printing plate and an intaglio copper printing plate.
Patent GB-883756-A (GB)
Title: Improvements in or relating to a unitary liquid pump and motor unit
IPC: F04D13/06
Filed: 1958-03-17
Abstract: 883,756. Pump motors. RUTSCHI, K. March 17, 1958 [June 3, 1957], No. 8505/58. Class 35. [Also in Group XXVI] A motor and pump are mounted on a common shaft 16 within a common housing throughout which the liquid being pumped circulates to lubricate the bearings 20, 28, the stator winding 24 being mounted in a waterproof insulating epoxy resin. An end cap 21 for the housing has a chamber 31 formed in one end, accessible from the exterior of the housing through an opening closed by a transparent plate 32 and sealed by fibrous rings 33, 34 venting air from the chamber but swelling to prevent the liquid escaping, on contact therewith. In order to maintain the bearing 28 adequately lubricated at all times, a groove 30 is formed in the inner peripheral surface. This groove stops short of the rear end of the bearing, thus restricting the fins of liquid into the chamber 31 to permit the fibrous rings to swell and seal the closure plate 32 before the liquid leaks from the chamber. In the event of the impeller becoming blocked, it may be freed by removing the plate 32 and turning the shaft manually by means of a screw driver engaging a slot 29 in the end of the shaft.
Patent GB-553530-A (GB)
Title: Methods and means of automatically controlling electron beam of electron beam valve devices
IPC: H01J31/04
Filed: 1941-07-07
Abstract: 553,530. Electron beam valves and circuits therefor. INTERNATIONAL TELEVISION CORPORATION, Ltd., NAGY, P., and GODDARD, M. J. July 7, 1941, No. 8557. [Class 40 (v)] In a circuit including an electron beam valve means are provided for feeding on to the deflection means an electrical signal produced by the electron beam on an electrode of the valve due to any disturbance which tends to deflect the beam from its mean position, whereby the undesired deflection is eliminated. Fig. 1 shows a highfrequency amplifier circuit using a beam valve of the kind described in Specification 539,661 in which signals from a tuned input circuit 11 are fed to a deflection plate 12 to cause a beam produced by cathode 13, grid 14, first anode 15 and focusing second anode 16, to oscillate across output electrode 17 to produce signals across the output circuit 18. Anode 17 comprises a part 17a adjacent a suppressor grid 20 at a lower potential, and a part 17b near a grid 21 at a higher potential, so that oscillation of the electron beam causes anode 17 to go alternatively positive and negative. Output circuit 18 is connected by a resistance 19 to the supply potential tapping for second anode 16 and by resistance 23 to deflection plate 12, a condenser 22 serving for decoupling both as regards input and output signals. The receipt of a disturbance which deflects the beam from its central position causes a direct current to flow in the anode circuit and the voltage drop across 19 is fed through 23 to 12 to supply a correcting voltage which maintains the beam in the optimum mean position which may or may not be a position for zero direct current in the anode circuit. An audio-frequency amplifier using a beam valve of the kind described in Specification 553,532 also is described, Fig. 2 (not shown). In this case there may be connected in series with the decoupling condenser a circuit tuned to the microphone frequency which is thus not decoupled but is fed back to the deflection plate to eliminate the microphone effect. In a further modification, Fig. 3 (not shown), the beam control potential is taken from an extra auxiliary electrode instead of from the output circuit.