baber/WOPTO huggingface dataset:
Patent GB-898611-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: B29D5/08
Filed: 1959-02-05
Abstract: 898,611. Sliding clasp fasteners. OPTIHOLDING A.G. Feb. 5, 1959 [Feb. 6, 1958], No. 4151/59. Class 44. In a method for making a sliding clasp fastener from a molecularly orientable plastics material, for example polyamide threads, polyurethane threads or the like, an unstretched thread of the plastics material having any cross-section, is stretched by means of a shaping pressure exerted transversely to the length of the thread, the shaping pressure forming serially disposed teeth having tips broadened longitudinally to the length of the thread and between the teeth, curved connection pieces which curve in the opposite direction to that in which the teeth point, the thread being subsequently woven with or sewn to a textile stringer tape. As shown, unstretched polyamide thread 1, of preferably round crosssection is passed between rollers 2, 3 to produce teeth 7 the roller 2 being provided with uniformly distributed teeth 4 and the roller 3 being provided with a smooth periphery 3a having side flanges 3b which bridge the space between the rollers and also overlap the teeth 4 of the roller 2. The teeth 4 are provided with off-sets 4a, 4b or as shown in Fig. 7, with projections and recesses 4c, 4d. The roller 3 may be provided with a profiled periphery as shown in Fig. 5. The thread 1 is first passed through a second pair of rollers 9, 10 provided with grooves 11 and projections 12 respectively, to produce mushroom-shaped heads on the teeth 7 and an arcuate form to the parts 8 of the thread. Another pair of rollers 15, 16 associated with the rollers 9, 10 and moving perpendicularly thereto carries the thread forward by means of teeth and also forms by means of a disc attached to the roller 16 a groove 20 in one side of the thread, the final form of the thread being as shown in Figs. 9 and 10 or 11. The groove 20 locates a stitching thread by which the fastener thread is sewn to a stringer tape. The groove 20 may be dispensed with. The profiled fastener thread may be weaved directly with a stringer tape.
Patent GB-336917-A (GB)
Title: Improvements in devices for stropping razor blades
IPC: B24D15/08
Filed: 1930-02-07
Abstract: 336,917. Freundlich, M., and Seufert, H. Feb. 7, 1929, [Convention date]. Stropping - apparatus.-A device for sharpening razor blades consists of two rollers 3 with helical surfaces 4 mounted for rotation, by a handle and gearing in a. frame consisting of end plates 1 connected by stays 2. The blade 9 is supported by a bar 7 secured to the plates 1, and is bent about a longitudinal axis, with the concave side, towards the rollers and the blade edges contacting therewith, by means of a clamping-plate 11 having upturned margins 13 and pressed by a nut 12 on a stud carried by the bar 7 and passing through the central hole in the blade; studs 8 engage the outer holes in the blade.
Patent GB-109746-A (GB)
Title: An Improved Process for Treating Aluminium Skimmings, Screenings, Dross, Slags or analogous Materials.
Inventor: GILL HUBERT ALEXANDER
IPC: C01F7/066
Filed: 1917-03-23
Abstract: 109,746. Gill, H. A., (Jobbins, W. F.). March 23, 1917. Ammonia.-Aluminium skimmings, dross, slag &c., after optional preliminary separation of the larger metallic particles, crushing and washing with water to remove soluble salts, are treated with an alkali hydrate solution or are fused with an alkali carbonate or hydrate so as to form an aluminate any ammonia evolved being recovered, and the evolution of gas being if desired utilized to obtain pressure for the reaction. Metals such as copper, zinc and iron may be prevented from dissolving or removed from the solution by adding sulphur or a sulphide before, during or after the formation of the aluminate.
Patent GB-726896-A (GB)
Title: Improvements in and relating to closures for containers
IPC: B65D41/22
Filed: 1951-02-21
Abstract: A container closure cap is moulded from a composition consisting of 100 parts of a polyvinyl chloride, 40 parts of di-nonyl phthalate, 40 parts of di-octyl phthalate and 4 parts of calcium stearate paste, the liquid composition being placed in a mould preheated to 100-350 DEG  F. rotating about its axis to fling the composition in a thicker film on the walls of the mould than the bottom thereof.ALSO:A container closure cap is moulded from a liquid composition consisting of a polyvinyl chloride and plasticizers, which composition is fed into a mould preheated to 100-350 DEG  F. rotated about its axis to fling the composition in a thicker film on the walls than the base of the mould, the rotating mould is transferred to an oven at a temperature of 250-300 DEG  F. to set the composition, followed by further heating and then cooling to 100 DEG  F., and the complete cap is ejected from the mould.
Patent GB-165493-A (GB)
Title: Improvements in means for actuating signals on and communicating with trains
IPC: B61L3/22
Filed: 1920-10-08
Abstract: 165,493. Thompson, H. A. Oct. 8, 1920. Track apparatus actuating signals on trains.- In a modification of the system described in Specification 12228/15, the automatic switch C and the main plunger P are restored after operation by currents passing through the silent relay R<1> and the sounding relay R<2>. The controlling circuit for the relay R<2> is normally disconnected and a push-button T<1> is employed to close the contacts n so that the driver must take action to avoid unnecessary applications of the brakes. A spring contact m may control the circuit of the silent relay R<1> and be operated also by the pushbutton T<1>. Additional windings on the magnet of the switch C are energized through a pushbutton T<2> to restore the switch to its upper position. An inductance and capacity may be connected to prevent sparking, and the reeds of the relays R<1>, R<2> may have variable clamps or sliding weights to vary their rates of vibration.
Patent GB-760799-A (GB)
Title: Improvements in or relating to magnetic ceramic materials
IPC: H01F1/00
Filed: 1953-02-16
Abstract: 760,799. Magnetic compositions. PLANER, G. V. May 10, 1954 [Feb. 16, 1953], No. 4281/53. Class 38 (2). A composite body of ferromagnetic ceramic material comprising regions of different permeabilities and loss factors is made by firing the body after the different materials have been put together. Two manganese-zinc ferrites of different zinc contents may be produced in powder form from heated oxides, mixed with a binder and granulated, and then quantities are inserted in a die alternately selected from each batch. The body is compressed and sintered at above 1240‹ C. The distribution of the different materials may be cellular of laminar; and they may merge into each other gradually at their boundaries. The ferrite constituents may comprise same or different elements, and their difference may lie in the addition to one of a ceramic flux such as silica. The use of Ni Zn ferrite is also mentioned. Specifications 655,666, 661,721 and 680,320 are referred to.
Patent GB-828347-A (GB)
Title: Improvements in and relating to electric switches for high voltage
IPC: H02B13/035
Filed: 1957-02-07
Abstract: 828,347. High voltage switches. COQ N.V. Feb. 7, 1957 [Feb. 15, 1956], No. 4305/57. Class 38 (5). In a high-voltage switch of the kind having a casing with an outer metallic wall 6 and and inner insulating wall 7, a movable and removable contact rod 4 cooperating with fixed contacts 2, 3, and voltage stress control screens surrounding and connected with the fixed contacts, the length of the casing is reduced by forming the upper screen in two coaxial and axially-spaced parts 10a, 10b, both of which are connected to the rod 4 when it is in the open position. In the arrangement shown, the rod 4 is carried by an insulating rod 5 and when moved to the open position interconnects the contact 3 and a further fixed contact 14 connected to the screen part 10b. Further movement of the rod 4, 5 so as to remove it from the casing, opens contacts 3, 4 and disconnects the screen part 10b from the " live " circuit.
Patent GB-470467-A (GB)
Title: Improvements in intermittent gearing
IPC: F16H27/06
Filed: 1936-02-13
Abstract: 470,467. Intermittent gearing. SHACKLETON, J., and INDUSTRIAL MACHINERY CO., Ltd. Feb. 13, 1936, No. 4344. [Class 80 (i)] Relates to Geneva mechanism of the kind in which the driving pin 15 enters and leaves radial grooves 12 in the driven member 10 at their inner ends so that the driving phase exceeds half a revolution of the driving member. According to the invention, the locking means for the rest period comprises pairs of dowels or pins 17 located adjacent the outer ends of the grooves 12 and co-operating with a segment 16 concentrically arranged on the driving member. Specification 464,161 is referred to.
Patent GB-712780-A (GB)
Title: Improvements in/or relating to internal combustion engine cylinder heads and valves
Inventor: HUBER WILLIAM JOHN
IPC: F02B1/04
Filed: 1952-02-19
Abstract: 712,780. Valves and valve gear; cylinders; lubricating. BOLTON, M. A. Feb. 19, 1952, No. 4355/52. Classes 7(2) and 7(3) A cylindrical inlet valve 35 arranged transversely of a combustion chamber 28 seats on a coaxial exhaust poppet valve 38 having a seat 40, the valves having coaxial telescoping stems 46, 37 actuated by rockers 102, 103. The stem 46 is connected to the valve 35 by a spider 56 having openings 50 for the flow of the mixture from the intake passage 61 through the valve, which has a Venturi-shaped interior surface and is loaded by springs 60, 59, seating in a cylindrical abutment 53 which is attached 'to the valve and slides in a cylindrical recess 58 formed in the inlet manifold 13. The rocker 102 contacts the valve stem 46 to lift the valve 35 off the valve 38 for the intake stroke, leaving the valve 38 closed, and the rocker 103 contacts the end of a cylindrical tappet 88 to move the valve 38 together with the valve 35 off the seat 40 for the exhaust stroke, the inlet passage of the valve 35 remaining closed by the valve 38. The valve 35 is preferably constructed of light metal alloy having an annular ring 67 of steel forming the seating surface of the valve and carrying piston rings 66, the opposite end of the valve also being provided with piston rings 65. Lubricating oil is supplied to the valve bore through passages 73, 72, and excess oil is removed through a passage 76 connected to a return pipe 79. Lubricating oil is also supplied to the hollow rocker shaft 105 and escapes through an orifice 113 and passages 115, 118 to lubricate the upper end 95 of the push-rod and through an orifice 144 to lubricate the tappet 88 which it reaches through orifices 90, 92. A spring 121 eliminates side play from the rocker arm bosses 100, 101, and the rocker shaft is held in position on supports 106 by caps 108 bolted thereto. The combustion. chamber 28, Fig. 2, is arch-shaped and surrounds the end of the valve unit 35, 38 and the sparking plug 31 is situated at the top thereof above the valve unit. The exhaust passage 41 leads to an exhaust manifold 14 secured to the cylinder head by bolts attached to members 24 engaging cheeks 25 on adjacent cylinders.
Patent GB-246678-A (GB)
Title: Improvements in or relating to steam regenerative accumulators
IPC: F01K1/06
Filed: 1925-02-17
Abstract: 246,678. M³ller, W., and Heinrich, P. M. Feb. 17, 1925. Steam regenerative accumulators. - Superheated steam is supplied through a valve i and conduits g, h to conduits d, e arranged within a steam regenerative accumulator a. the conduit d having pipes k which open in an upward direction into open-ended tubes l, while the conduits e communicate with nozzles m. Normally, the superheated steam passes through the conduits g, d to the tubes l and the steam generated is directed on to the surface of the water in the accumulator by the nozzles l'. When the pressure in the accumulator falls, the valve i is actuated so as to by-pass a portion of the superheated steam to the. nozzles m. The conduits g, hare connected by a pipe o in which is arranged an automatic or hand-operated valve for by-passing the superheated steam to the nozzles m.
Patent GB-1111367-A (GB)
Title: Reciprocating piston pump
IPC: F04B49/12
Filed: 1967-01-30
Abstract: 1,111,367. Reciprocating pumps. MIBIS MERKANTILA INGENIÍRSBYRŠN A. B. Jan. 30, 1967 [Feb. 11, 1966], No.4400/67. Heading F1A. The suction strokes of piston 2 are limited by engagement of the flanged piston end member 14 with the surface 31 of slotted slide 28 which is adjustable in guide 27 by set screw 34. The delivery strokes of the piston 22 are produced by an electric motor driven eccentric 22 acting through tappet 18, 21, the tappet portion 18 passing through slide slot 32. The slide has a pin 29 engaging a slot 30 in the frame and pointer on the pin may co-operate with a scale. Graduations may be provided on the set screw knob 35.
Patent GB-524940-A (GB)
Title: Improvements in and relating to apparatus for cooking, digesting, sterilizing or otherwise treating edible or other goods by fluid pressure
IPC: A47J27/08
Filed: 1939-02-10
Abstract: 524,940. Closures. CROWE, G. E. W., and COLEMAN, C. J. Feb. 10, 1939, No. 4455. [Class 125 (iii)] [Also in Groups XVIII and XXIX] A pressure cooker 1 is provided with slightly inclined strips of metal 2, which may alternatively be pressed but from the body, and with projecting pins 4 on which hand-rotated sleeves 5 with pinions 8 are mounted. A cover 9 is provided with internal projections 11 which pass below the strips 2 when rotated, to draw the cover into airtight engagement with the body. The cover is grooved at 12 and the edge of the body is bevelled to fit the groove. Rotation of the cover is effected by the engagement of the pinions 8 with teeth 13 on the edge of the cover. The projections 11 are so constructed as to yield at a predetermined pressure and allow the cover to lift. The projection 11 may comprise a ball 16, pressed by a spring 15 and bearing against the inclined lower surface of the strip 2. The spring 15 may be made so that when compressed solid its inward movement in its recess is insufficient to allow the cover to lift off the body.
Patent GB-556474-A (GB)
Title: Improvements in and relating to the manufacture of metallic magnesium
IPC: C22B26/22
Filed: 1942-04-03
Abstract: 556,474. Magnesium. MAGNESIUM METAL CORPORATION, Ltd., and SPOONER, E. C. R. April 3, 1942, No. 4496. [Class 82 (i)] The condensation of magnesium by chilling a mixture of magnesium and carbon monoxide obtained by reaction of magnesium oxide with carbon is effected by means of a non- oxidizing, neutral, or reducing condensable gas used in gaseous form. The gas is preferably a hydrocarbon and has a boiling-point between -20‹C and +200‹C; or a mixture of hydrocarbons having boiling-points within the stated range may be used. A number of suitable hydrocarbons are specified. the preferred hydrocarbon being butane. In the plant diagrammatically illustrated the mixture of magnesium and carbon monoxide from the furnace a is chilled in a cone b to which butane or the like in gaseous form is admitted through holes c. The mixture then passes through a cooler f and a filter or electrostatic separator l, magnesium dust being withdrawn through outlets g, m. Hot gas passes through a pipe n to a heat exchanger o and cooling or refrigerating apparatus q from which the condensed medium is returned through the heat exchanger o to the cone b. Specifications 381,115 and 448,536 are referred to.
Patent GB-717674-A (GB)
Title: Circular knitting machine having a latch moving means, and method of operating same
IPC: D04B9/54
Filed: 1951-02-26
Abstract: 717,674. Knitting. SCOTT & WILLIAMS, Inc. Feb. 26, 1951 [March 23,1950], No. 4601/51. Class 74 (2). During the period of return to the needles of loops 12 from transfer bits T at the end of welt formation, a blade' 10, positioned ahead of the stitch cam 360 partly closes the needle latches so that the loops 12, which are comparatively slack, are prevented from riding over the ends of and so catching on the latches and getting into the needle hooks and are thus cast off with certainty. A welt transfer line of uniform appearance can thus be produced. The latches are prevented by centrifugal force from returning to the fully open position before the needles descend the cam. The blade 10 is fixed in a plate 14 pivoted at 15 to the sinker cap 300 or other stationary part of the machine, and is urged to the operative position by a spring 17, but is held inoperative by the action of a cam finger 463 on a tail 16, until a thrust rod 462, carrying the finger, and controlling also the transfer bits, mounts a drum cam 161. When the sinker cap makes its usual limited oscillation on a reverse movement of the needle cylinder, a finger 18, on the dial driving shaft post, pushes on the plate 14 and renders blade 10 inoperative during reverse knitting. The blade may be swung manually out of the operative position by pressure on a finger 20. Specification 102,711, [Class 74 (ii)], is referred to.
Patent GB-621320-A (GB)
Title: Improvements relating to methods of electrical cooking
IPC: H05B6/54
Filed: 1947-02-18
Abstract: 621,320. Dielectric heating. T. I. (GROUP SERVICES), Ltd., and REED, J. P. Feb. 18, 1947, No. 4632. [Class 39(iii)] Food is cooked by the action of high frequency dielectric heating supplemented by either or both convected and radiant heat. In one embodiment, electrode plate 3 slides on conductor rails 2, and a second electrode 5 is supported by a linkage 6, such that it may be moved towards or away from electrode 3. The rails 2 extend into an oven 8 which receives electrode 3, and has radiant heating elements 9 and hinged door 10. The food is slid into the oven following a dielectric heating period. Reference has been directed by the Comptroller to Specification 631,396.
Patent GB-1487493-A (GB)
Title: Cold shielding of infra-red radiation detectors
IPC: G01J5/08
Filed: 1975-02-04
Abstract: 1487493 Radiation detector shielding arrangements RANK ORGANISATION Ltd 21 Jan 1976 [4 Feb 1975] 4717/75 Heading G1A [Also in Division H1] A thermal radiation detector assembly comprises a detector 1 surrounded by a radiation shield 7; means 4 (e.g. liquid N 2 ) for refrigerating the detector 1 and the shield 7; an optical element 2 arranged to direct radiation through an aperture 6 in the radiation shield 7 on to the detector 1; and a reflector 9 in the vicinity of the optical element 2 and arranged to reflect radiation from the detector on its cooled surroundings on to the detector, so that substantially all radiation impinging on the detector through the shield aperture 6, other than that coming from the optical element 2, corresponds to the temperature of the detector or of its cooled surroundings. The refrigerant 4 may be contained in a doublewalled vacuum vessel 3, the detector 1 and shield 7 being attached to the wall 3 within the vacuum space, and a radiation window 5 being provided in the outer wall. The reflector 9 may be a spherical mirror centred on the detector 1.
Patent GB-255352-A (GB)
Title: Improvements in and relating to paper folding mechanism
IPC: B41F13/60
Filed: 1926-02-18
Abstract: 255,352. Hoe & Co., Ltd., R., (Hoe & Co., Inc., R.). Feb. 18, 1926. Folding paper.-In a rotary folder of the kind in which sheets cut from a web W are taken by means of pins 7, 8 on the folding-cylinder 1 and are folded by a blade 9 between rolls 10, 11, manually-operated means are provided for varying the time at which the sheet-taking devices 7, 8 take and release the sheet in relation to the action of the folding-rolls, in order to enable the sheet to be accurately folded at all speeds of running of the machine. The adjustment is effected by shifting the position of the normally stationary cam 12, which operates the pins 7, 8, by means of a hand-operated worm 20 engaging worm teeth 19 on the cam. The cam is formed with slots 25 engaged by pins for steadying it.
Patent GB-1217728-A (GB)
Title: Improvements in or relating to board games
Inventor: WAYTE DENNIS TRAVERS
IPC: A63F3/00
Filed: 1968-01-30
Abstract: 1,217,728. Board games. D. T. WAYTE. 30 April, 1969 [30 Jan., 1968], No. 4745/68. Heading A6H. A board game simulating lawn tennis comprises a board marked as shown, together with pieces representing a ball and players and means, e.g. one or more dice or packs of suitably marked instruction cards, for determining movements of the pieces. The rules given follow those of conventional lawn tennis and the numbers on the board are used in conjunction with corresponding values on the dice and/or cards.
Patent GB-993743-A (GB)
Title: Chlorinated alkenyl aryl monomers, polymers and methods of making them
Inventor: PRICE JOHN ARTHUR
IPC: C07C17/26
Filed: 1962-02-07
Abstract: Chlorophenyl-butenes of the general formula: <FORM:0993743/C2/1> wherein x is a 3-butenyl group, y is hydrogen or chlorine, and z is chlorine, are prepared by reacting allyl bromide with a halogenated toluene in dry ether in the presence of magnesium turnings (Grignard synthesis).  In an example, allyl bromide is reacted with a ,o-dichlorotoluene to produce 4-(21-chlorophenyl)-1-butene. Other specified compounds are 4-(41-chlorophenyl) - 1 - butene, 4 - (21,41 - dichlorophenyl) - 1 - butene, and 4 - (31,41 - dichlorophenyl)-1-butene. Solids, high molecular weight polymers and copolymers can be formed from these compounds (see Division C3).ALSO:Compounds of the general formula <FORM:0993743/C3/1> where x is a 3-butenyl group, y is hydrogen or chlorine, and z is chlorine, are polymerized to form normally solid compounds of high molecular weight suitable for forming fibres, films, coatings, and moulded articles.  Polymerization may be achieved by refluxing the monomer in contact with a titanium halide-aluminium trialkyl catalyst system. Titanium tri- or tetrachloride and aluminium tri-ethyl or tri-isobutyl may be used.  The monomer may be added slowly to a slurry of the catalyst in an inert solvent such as hexane and the temperature is then raised to the reflux temperature of the mixture. The monomer may be 4-(21- or 41-chlorophenyl -1-butene or 4-(21,41- or 31,41-dichlorophenyl) - 1 - butene. Homo polymers may be made or two or more of the monomers may be copolymerized, or one or more of the monomers may be polymerized with other alkenyl aryl compounds such as styrene or allyl mono- and di-chlorobenzenes.
Patent GB-229698-A (GB)
Title: Improvements in or relating to shock absorbers for vehicles
IPC: F16F7/04
Filed: 1925-02-20
Abstract: 229,698. Contri, G. D. Feb. 20, 1924, [Convention date]. Vibration - dampers.- A frictional rebound damper for laminated springs of vehicles comprises a circular casing having a cover-plate and central bearing pin, a onepiece central core mounted in the casing on the pin and rigidly connected to a rocking lever, a hollow core mounted on the central core and having frictional material secure thereto and directly engaging the interior of the casing and the cover plate, and a one-way wedge-roller drive between the two cores. The casing A secured on the vehicle frame is formed with projections B engaging recesses in the cover plate L which is adjustably pressed against the frictional material C by a cap F and nut G carried by the central pin. The central core H mounted on the pin is rigid with a lever I which is connected by a rod to the vehicle axle. When the axle and frame approach each other, the core H rotates freely in the counter-clockwise direction, but during the rebound the core H is clutched by means of rollers E and springs M to the core D. The central pin is formed with a flanged head engaging an exterior recess in the casing, and the cap F encloses the inner end of the lever I.