baber/WOPTO huggingface dataset:
Patent GB-346870-A (GB)
Title: Improvements in and relating to doctoring on paper-making and like machines
IPC: D21G3/00
Filed: 1930-01-25
Abstract: 346,870. Paper-machines. VICKERY, F. W., 4, Lambeth Palace Road, London. Jan. 25, 1930, No. 2664. [Class 96.] A tray located beneath the edge of a doctor of a paper-machine &c. is moved, by hand from one place or by the pressure of accumulating broken web, to a position well away from the roll ; such movement may be accelerated by gravitation, the tray moving down inclined guides. The tray 1 with a cylindrical receptacle 2 and a sheet 3 extending beneath the doctor 5 is stiffened with an angle-bar support 6 turning on a shaft 7 carrying pinions 8 engaging racks 9 on the guides 10 and having a hand-lever 11 on one or on each end. From bearings 12 carrying the bar 6 project crank 13 formed with hooked ends 17 engaging lugs 18 and having pins 14 engaging slots 15 in pivoted bars 16. The tray is normally retained by the hooks 17 and is removed by pressure of the hand anywhere on its rear part or by material accumulated when the web breaks pressing against the part 3, whereupon the tray moves away from the rolls, and is tilted owing to the cranks 13 and bars 16 material .on the part 3 being tipped into the receptacle 2, and the part 3 being rapidly removed from the roll 4. The hooks 17 may be disengaged electromagnetically, by rollers making contact when the paper web fed between them breaks. The tray may also be restored when the web is again fed through the rollers, in which case grooved contact rollers are used so that on breakage the upper roller falls through a distance equal to the thickness of the paper plus the depth of the grooves and breaks the contact of one circuit and makes that of another, a common core being used for an electromagnet in each circuit. A spring drawn over a dead-centre by the magnetic pull may be used ; and the contacts may actuate alarms. A device depending on movement of bellows when the web, which passes over a suction opening, breaks, or a device having a balanced vane moved by a compressed air jet, the paper web normally intervening, may be used. The Provisional Specification describes a tray reinforced by a sheet tangential to the cylindrical receptacle and rim and states that the rack may be curved or a cam may be used in guiding the tray.
Patent GB-214740-A (GB)
Title: Improvements in loose leaf ledgers and the like
IPC: B42F13/04
Filed: 1923-01-29
Abstract: 214,740. Knight & Co., Ltd., C., and King, J. S. Jan. 29, 1923. Flexible-band files; fastenings.--In a loose-leaf binder in which the thongs B are operated by a strap C attached to a cross-bar A holding the ends of the thongs, the strap is clamped in position by turning one arm of each of a pair of L-sbaped members G arranged back to back so that the other arm, which is serrated, bites into the strap. A flat plate may be pushed under a bridge K between the members G to hold them in position. Specifications 170,507 and 190,549 are referred to.
Patent GB-547461-A (GB)
Title: Improvements in electric cables
IPC: H01B7/04
Filed: 1941-02-27
Abstract: 547,461. Electric cables. HENLY'S TELEGRAPH WORKS CO., Ltd., W. T., and WATKINS, W. W. Feb. 27, 1941, No. 2678. [Class 36] A flexible electric power cable has one or more cores round one or more of which, and between two layers of rubber, is disposed a tubular braid formed wholly or in part of strips or cords of non-fibrous material of the non-hygroscopic synthetic plastic type which are flexible, have tensile strength with little extensibility, and do not adhere to the rubber, so that braid has limited freedom of movement. In Fig. 1, the cable has four cores each comprising a flexible conductor 1, a rubber cover 2, a tubular braid 3, and a covering 4, the cores being laid helically around a rubber centre and enclosed in a sheath 5. In Fig. 3, four cores, each comprising a flexible conductor 1 and rubber covering 2, are laid helically around a rubber centre 6 and embedded in a sheath 9 and tubular braid 3 in an outer sheath 5. The covering 4 and sheaths 5, 9, may be of tough rubber, involving heat treatment for vulcanization. In each case, the braid comprises sets of metal wires 7 and sets of strips or cords 8 of synthetic plastic material running in opposite senses round the parts of the cable, and the braids may serve as conductive screens. The synthetic material may comprise polyvinyl esters such as polyvinyl chloride or acetate, or co-polymers thereof, and may be plasticized &c. and are not affected by the temperature required for vulcanizing adjacent rubber layers.
Patent GB-254989-A (GB)
Title: Improvements in or relating to gramophones or like sound reproducing instruments
IPC: G11B33/06
Filed: 1926-01-29
Abstract: 254,989. Goldberg, J. Jan. 29, 1926. Drawings to Specification. Cases.-The casing of a gramophone or like sound reproducing instrument is detachably mounted on the inner side of the opening flap or door of an enclosing cabinet bv means of a hook, stud-and-slot or other separable fastening.
Patent GB-972813-A (GB)
Title: Improvements in or relating to spring catch devices for hinged closures
Inventor: DUNKEL GUNTER
IPC: E05D5/12
Filed: 1961-01-24
Abstract: 972,813. Catch fastenings; hinges and pivots. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Jan. 24, 1961, No. 2810/61. Headings E2A and E2F. A spring catch means comprises a plunger 3 acting as a hinge pin of a detachable closure member 1, the plunger being spring loaded and supported by the closure member for axial sliding movement and having a head 4 urged by the spring 5 into a recess 10 in a frame 2, the head and the recess being so shaped as to prevent relative rotation and the spring being under a torsional stress tending to keep the closure member in the closed position in the frame. The head of the plunger and the recess are of polygonal shape in cross-section and the spring plunger is held in the retracted position by a detachable bolt 9 engaging a neck portion 6 of the plunger. The bolt 9 passes through a hole 7 in the closure member 1. When the plunger is in the retracted position it is held against rotation by the torsion of the spring by means of a stop 8 on the closure member which engages one of the faces of the head.
Patent GB-659175-A (GB)
Title: Dispenser for pressure sensitive adhesive tape
IPC: B65H35/00
Filed: 1949-02-02
Abstract: 659.175. Adhesive tape dispensers. KRUEGER, T. H. Feb. 2, 1949, No. 2899. Convention date, Feb. 11, 1948. [Class 18] The tape from a roll of pressure sensitive adhesive tape has a marginal portion 38 which extends beyond the edge of a tape feeding drum 30 or disc to enable the end of the tape to be readily gripped and removed from the drum or disc. The roll of tape 20 is mounted on a support 40 and retained in abutment with shoulders 48 in each of four arms 44 of the support by a plate 42. The support is mounted on a threaded sleeve 52, revolvable about a stationary spindle 54 so as to permit endwise adjustment of the roll to enable various width tapes to be accommodated thereon whilst retaining the required alignment with the feeding drum to provide the necessary marginal overlaps. The support is locked in position on the sleeve by a nut 72 screwed on the sleeve 52 pressing the plate 42 into contact with the roll and thereby preventing rotation between the sleeve and support. The tape extends from the roll round a. guide roller 26 and adheres to the surface of the drum 30. A handle 80 operating through a one way drive mechanism rotates the drum 30 and a second mechanism prevents reverse rotation of the drum 30 when the handle is returned to its original position. A stop 112 adjustably mounted in a slot 114 limits the movement of the handle, a graduated scale being provided adjacent the slot to indicate the amount of tape delivered for the various positions of the stop. A cutter 120 is positioned adjacent of top of the drum 30, against which the tape is severed after a length has been delivered. Alternatively the tape may be delivered-by a disc which engages the tape centrally so that it extends on either side of the disc. Also the guide roller 26 may be modified to accommodate two adjustable guide elements between which the tape is guided to the disc, this arrangement obviating the necessity to provide an adjustable support for the supply roll to align it with the disc. Specification 565,923 is referred to.
Patent GB-714523-A (GB)
Title: Improvements in or relating to the production of thermal insulation sections
IPC: C04B26/28
Filed: 1952-02-04
Abstract: 714,523. Moulding thermal insulation sections; fibrous compositions. DU COUEDIC, C. L. Feb. 4, 1952 [Feb. 2, 1951], No. 2909/52. Classes 70 and 87 (2) A method for the production of thermal insulation sections made of fibrous or pulverulent material which is coated with a mucilaginous binding agent comprises packing the coated material into a mould, subjecting the material in the mould to the action of heat and humidity. so as to soften it and then, whilst applying pressure to the material in the mould, hardening , by injecting warm air or gases. The binding agent should be such that initial application of heat softens it by lowering its viscosity and further heating dries and hardens it. A suitable material is mineral fibre obtained, e.g. from slag and a suitable binding agent is a starch gel which may contain an aqueous emulsion of a waterproofing agent, e.g. bituminous or paraffin wax emulsion. The coated material is placed in a mould suitable, e.g. for an insulating section to half cover a pipe, Fig. 5, and a former 7, by which pressure may be applied by hand, is placed on top of it. Low pressure steam is supplied to a perforated pipe 5, Fig. 3, and enters the mould through the joint between the mould and an ejector 3 for removing the section when the process is finished. The heat softens the material and the pressure on the former 7 conforms it to the shape of the mould. After this operation. which takes about one minute, the mould is placed in apparatus as shown in Fig. 6. This comprises a distributer 12, semi-cylindrical to apply pressure to the pipe section and perforated for the passage of hot air. Pressure is exerted on the distributer by a pipe 15 fixed to a plate 11 which slides on a pillar 13 and is forced downwards by a lever 14, slidably connected to the plate 11 at 20, hinged at 21 and pivoted on a clamp 22 at 23. Air at 100 to 150C. is introduced through a pipe 25 inside the pipe 15 and, reaching the material through the perforations, dries and hardens it. After this operation, which takes from one to three minutes, the plate 11 is raised and swung clear about the pillar 13 and rods 4 are actuated to cause the ejectors 3 to push the hardened section out of the mould. It is desirable to spray the surface of the mould with lubricant, e.g. petroleum. The binding agent may be introduced to untreated fibre by injecting it with the steam.
Patent GB-1212173-A (GB)
Title: Optical encoder and photocell assembly therefor
IPC: H01L27/144
Filed: 1969-01-17
Abstract: 1,212,173. Encoders. D. H. BALDWIN CO. 17 Jan., 1969 [18 Jan., 1968], No. 2944/69. Heading G4H. [Also in Division H1]  An analogue to digital encoder for encoding shaft angle positions comprises a code disc 12 mechanically affixed to the shaft 10 whose rotational position is to be encoded, this disc having unique combinations of opaque and transparent sectors disposed on spaced radii, a fixed light source 20 being positioned on one side of the disc and a photo-cell assembly 22 on the other side. The light source projects light through the transparent sectors 16 of the disc in combinations depending upon the rotational position of the shaft and disc to actuate corresponding photo-voltaic cells in the photo-cell assembly. The light source may be periodically actuated or continuous, and the photo-cells themselves may be periodically sampled.
Patent GB-285479-A (GB)
Title: Improvements in apparatus for closing packets provided with a closure flap
IPC: B65B19/14
Filed: 1928-01-31
Abstract: 285,479. Universelle Cigarettenmaschinen-Fabrik J. C. M³ller & Co. Feb. 19, 1927, [Convention date]. Packcting by wrapping-up.-Apparatus for closing down the closure flap b, Figs. 3 and 7, of a packet and inserting the tip thereof in a slit d in the surface of the packet, comprises a slotted mandrel 6, Fig. 1, adapted to receive the upturned flap b and perform an arcuate movement from the position shown in Fig. 3 to that shown in Fig. 7. The mandrel 6 is carried by a lever 7 actuated by a cam 9 to swing in the plane of the flap b to cause the mandrel to grip the flap. The mandrel is secured to a carrier 26 rotatably mounted on a swinging plate 13 and geared to a fixed pinion 29 on the pivot of the plate 13. In operation a cam operated lever 17 engages a roller 15 on the lower part of the plate 13 to move the mandrel along its arcuate path, the pinion 29 compelling it simultaneously to turn about its own axis. The lever 7 then removes the mandrel in the direction of its own length and a presser acting on the back part c of the flap completes the closure.
Patent GB-910892-A (GB)
Title: Improvements in or relating to protective end pieces for aerial feeder lines of mobile radar apparatus
IPC: H01P1/26
Filed: 1960-01-28
Abstract: 910,892. Transmission line terminations. ALBISWERK ZURICH A.G. Jan. 28, 1960 [Feb. 17, 1959], No. 3115/60. Class 40 (8). A dummy load, intended to take the place of the aerial of a transmitter during transit, is attached by a union nut to the feeder line of the transmitter. The waveguide feeder 14, Fig. 2, is provided with a tubular extension 13 within which is secured a cylindrical member 11 having a collar 11a and a longitudinal bore 11b. The cylinder is secured in position by means of a union nut 15 and a key 16. The bore is terminated by a wedge 17 of dissipative material e.g. graphite, iron or iron oxide in a suitable binder. A gas-tight seal 19 may be used to maintain a desired pressure in the guide 14. The coaxial termination 21, 24, Fig. 3, incorporates a dissipative load member 22 and is attached to the coaxial feeder 27, 31 by a union nut 23. Perforations in ceramic spacing members 26, 28 allow equalization of gas pressures in the feeder and the termination. A gas-tight seal 30 is inserted between the two parts.
Patent GB-746979-A (GB)
Title: Improvements in or relating to electrical conductors
Inventor: PORTER FRANK
IPC: H01B5/02
Filed: 1954-02-03
Abstract: 746,979. Conductors. PORTER ELEC. TRICAL 'PRODUCTS, Ltd. Jan. 26, 1955 [Feb. 3, 1954], No. 3160/54. Addition to 576,491. Class 36. The conductor disclosed in the parent Specification and comprising a body 10 and an integral fin 11 is provided with a second fin 11a which is spaced from the first. The fin 11a may be integral with the main conductor and arranged so that the two fins protrude from the body 10, which may be of flattened form, at opposed locations and the fin 11a may carry some of the data referred to in the parent Specification. The conductor may be made by extrusion or rolling, or by folding a strip of sheet metal as shown in Fig. 3.
Patent GB-1349208-A (GB)
Title: Method and apparatus for dividing stone blocks into flags
IPC: B28D7/04
Filed: 1972-01-24
Abstract: 1349208 Severing P O FRANSSON 24 Jan 1972 [27 Jan 1971] 3276/72 Heading B3D [Also in Divisions B4-B5] A method of dividing stone blocks into flags comprises dividing the flags off one by one from the bottom part of the block, the block being supported at a fixed height during dividing off of a flag. In one embodiment of apparatus for performing the method the block 1 is supported by jaws 21, 22 in a frame 15A whilst it is cut by a pair of rotary saw blades 2, 3 preferably diamond saw blades, moved relative to the block by the movement of carriages 10 supporting them. The flag 4 being cut from the block is supported by a vertically adjustable bed 28 which is also used to position the block between the jaws 21, 22 prior to cutting and also to remove a cut flag. The block is lowered between successive cuts by screws 26 which lower slides 24 carrying the jaws 21, 22. In a second embodiment the jaws 21, 22 are vertically immovable and the block is lowered using the bed 28. In an alternative embodiment the saw supports are fixed and the frame 15A is movable along tracks to feed the block relative to the saws. The bed 28 may have its upper surface covered by a resilient or elastic pad.
Patent GB-432218-A (GB)
Title: Improvements in or relating to electric heating appliances
IPC: D06F75/28
Filed: 1934-02-02
Abstract: 432,218. Plug-and-socket couplings. COLLINS, G. H., and COLLINS, H. F., Premier Works, Keeley Street, Birmingham. Feb. 2, 1934, No. 3454. [Class 38 (i)] A coupling or adapter for use with heating appliances and particularly electric irons comprises end parts for connection respectively to the heating appliance and to the coupling on the supply leads, spaced apart by body portions adapted to dissipate heat. The conductors between the two end parts of the adapter are of comparatively small cross-section to minimize the transmission of heat through them. As shown, sockets 17 and pins 25 are mounted in the two ends of a metal casing 10 which may be separable at a longitudinal joint or may be provided with a removable coverplate to give access to the wire or strip conductors 27. These conductors may be of stiff material and bare to promote cooling or they may be protected by insulating beads. The casing 10, 11 may be of copper, and may be formed with external depressions, perforations, or slots with bent edges. For earthing the adapter, metal tongues on the casing engage the metal guard which surrounds the connecting pins on the iron, and the other end part 21 of the adapter may make contact with an earthing terminal on the supply fitting.
Patent GB-822291-A (GB)
Title: Improvements in combing machines
IPC: D01G19/26
Filed: 1956-02-04
Abstract: 822,291. Combing machines. MORTON, W. E., and T.M.M. (RESEARCH) Ltd.  April 5, 1957 [Feb. 4, 1956; March 22, 1956],  Nos. 3560/56 and 8931/56. Class 120(1) In a rectilinear textile combing machine, means are provided whereby the draft imposed by the detaching rollers on the combed fibre fringe is substantially constant during substantially the whole of the period between engagement of the foremost fringe fibres by the detaching rollers and the moment when the distance between the detaching rollers and the nippers has decreased to within a predetermined angle of the cylinder shaft revolution of its minimum value. In Fig. 3, the displacement of the top comb of a rectilinear cotton comb during the drafting period from time t<SP>2</SP> to time t<SP>3</SP> is shown by the curve f, b; during this period the detaching roller is under the control of a cam so shaped that the slope at any point of the roller displacement curve h, d bears a constant ratio to that at the corresponding time point of curve f, b so that a constant draft is maintained during the drafting period. The detaching roller comes to rest at time t<SP>3</SP> and then moves forwardly again, still under cam control, until time t<SP>4</SP> to effect detaching of the drafted web. From t<SP>5</SP> to t<SP>6</SP> the roller is reversed for piecing under the control of an eccentric which is adjustable to vary the net advance of the roller during each cycle; desirably this net advance should equal the displacement h, j of the roller during drafting. In another arrangement, Fig. 2, the detaching roller shaft 14 is driven from a shaft 2 (an-extension of or geared to the combing cylinder shaft) through epicyclic gearing the sun wheel 8 of which is given an oscillatory motion through a gear 6 engaging a toothed sector 3 pivoted at 4 and carrying a cam follower 5 engaging a groove in a cam 1; the planet carrier 9 is driven at a constant forward speed via gears 10, 17 (not shown), 16 and 15, 17 being a change gear which can be altered to vary the constant drive component. Fig. 1 shows the displacement curve A one to the cam drive, and the curve B1 one to the constant drive; together these give the desired net displacement curve C1 for constant drafting. By altering the constant component from B1 to B2, the displacement curve is altered to C2 with a resultant change in the net advance. Constant draft may alternatively be obtained by rotating the detaching rollers at a constant speed, and providing a cam control for the motion of the top comb so that the distance between the rollers and the top comb diminshes at a constant rate. In a rectilinear worsted comb, the surface speed of the detaching rollers is similarly arranged to bear a fixed relation to the rate of approach of the rollers to the nippers; this may be effected by driving the rollers through a suitably shaped cam which controls the motion of a toothed quadrant engaging with a pinion on the end of the bottom detaching roller shaft.
Patent GB-1080449-A (GB)
Title: Method of separating plutonium from uranium
IPC: G21C19/46
Filed: 1966-01-26
Abstract: 1,080,449. Plutonium separation. UNITED STATES ATOMIC ENERGY COMMISSION. Jan. 26, 1966 [March 10, 1965], No. 3573/66. Heading G6R. Plutonium is separated from uranium by contacting an aqueous solution containing these elements with an organic solution of tributyl phosphate, separating the organic solution, and contacting it with an aqueous solution in the presence of gaseous hydrogen and a hydrogenation catalyst. Plutonium is reduced to the trivalent state and transfers selectively into the aqueous solution, the uranium remaining substantially unreduced in the organic solution. In examples, a tributyl phosphate-dodecane solution containing uranium and plutonium is contacted with a nitric acid solution and introduced concurrently with 4% by volume of hydrogen in argon, or with pure hydrogen, into a packed column of platinized alumina pellet catalyst. Reference has been directed by the Comptroller to Specification 801,743.
Patent GB-189692-A (GB)
Title: Improvements in or relating to crucibles, retorts and the like
IPC: C04B35/42
Filed: 1922-02-07
Abstract: 189,692. Ferolite, Ltd., and Clapp, H. B. Feb. 7, 1922. Refractory substances containing chromite and ferro-silicon.-Grucibles, retorts, and other vessels for high temperature work are moulded from a mixture of chromite and ferro-silicon with a binding-agent such as sodium silicate solution. Specification 183,219 is referred to.
Patent GB-310837-A (GB)
Title: A process for cementing and hardening iron, iron alloys and steel
IPC: C23C8/46
Filed: 1929-02-04
Abstract: 310,837. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler. May 1, 1928, [Convention date]. Addition. to 304,209. Case-hardening.-In a process as described in Specification 304,209 as improved upon by Specification 308,963, the carbon is introduced into the bath in combination with salts such as common salt or with caustic alkalies such as caustic soda or both. The materials may be fused together and introduced into the bath whilst hot or after cooling. In an example 250- 300 gms. of wood charcoal are mixed with 1000 gms. of caustic soda and are added to a melt consisting of potassium and sodium chlorides in such quantities that a carbon concentration of 1-3 per cent and a caustic soda concentration of 3-5 per cent is maintained.