baber/WOPTO huggingface dataset:
Patent GB-568421-A (GB)
Title: Improvements in or relating to cut-outs
IPC: F16D67/02
Filed: 1943-07-27
Abstract: 568,421. Preventing overwinding. KING, Ltd., G. W., and KING, D. M. July 27, 1943, Nos. 12203/43 and 69/44. [Class 78 (v)] [Also in Group XXVI] Means for stopping a driven element, e.g. a hoist, when overload occurs, or the element reaches an end position, comprises a friction clutch 18 between driving and driven elements 10, 12 and members, e.g. a screw 35 and nut 38, driven by the respective elements and adapted upon variation in relative speed to stop the driving element. In the normal driving position, the screw 35 holds open the switch 48 of an electromagnetic brake on the driven element, while a micro-switch 50 controlling the electric driving motor, or micro-switches 50, 52 in the case of a reversible motor remain closed. When speed variation occurs, clutch 18 slips and the screw 35 moves, permitting switch 48 to close, thereby applying the brake, and. subsequently opening switches 50 or 52 in the motor circuit. Two switches may be used instead of three, in which case each switch controls the motor and a relay to operate the brake. After cutting out the motor in the " raise " direction it may be necessary to prevent rotation of the nut 38 when the " lower " circuit is closed until the screw returns to its normal position. This may be accomplished by using a brake strong enough to withstand the combined torques of the load and motor. Alternatively, a non- rotatable bracket 55 is provided, having pins 59 engaging ratchet teeth in the nut, whereby rotation thereof in one direction is prevented. The sleeve is moved out of engagement with the ratchet by the screw 35 when the latter reaches its normal position. The invention may be applied to electrical, mechanical or hydraulic drives for hoists in other mechanism.
Patent GB-1494260-A (GB)
Title: Preparing ends of optical fibre bundles
IPC: C03B37/15
Filed: 1976-03-12
Abstract: 1494260 Optical fibre bundle DEFENCE SECRETARY OF STATE FOR 12 March 1976 [24 March 1975] 12236/75 Heading C1M In preparing an end portion of an optical fibre bundle, (a) a portion of the bundle 2 is inserted in a glass tube 1; (b) a section 3 of the tube 1 is heated so that the glasses of the tube I and bundle 2 are softened, and pneumatic pressure is applied externally of the tube 1; (c) the pressure is maintained so that the tube 1 is compressed in said section 3 on to the fibres 4 in the section, the fibres being pressed together; (d) the tube and bundle are allowed to cool; and (e) the bundle is then cut in the compressed section to form a new end face. The end face may be polished. Preferably the fibre claddings are removed prior to insertion in the tube. The tube 1 may be disposed for the fusion in holes 11, 12 disposed axially in blocks 8, 9, the blocks 8, 9 being screwed together to give an airtight interior zone, and seals 25, 26 being disposed around the glass tube 1. The tube is heated by electric coil 15. The pressure may be applied to the tube 1 disposed in the interior zone through tube 24 (through which leads 22 from coil 15 are passed), from an antechamber 32 (Fig. 5, not shown). The pressure applied may be 30-100 p.s.i.g.
Patent GB-580304-A (GB)
Title: Improvements in dispensing apparatus
IPC: B67D7/74
Filed: 1944-06-28
Abstract: 580,304. Delivering measured volumes of liquid. POLSEN, S. D., and NELSON, S. H. June 28, 1944, No. 12314. [Class 106 (v)] Apparatus for delivering measured volumes of liquid comprises a closed vessel fitted with a vertically reciprocating dipper the upper part of the stem of which is enclosed by an extensible seal. The vessel 10 is fitted with a part 17 having a sloping groove therein leading to a discharge spout 19, the part 17 being surmounted by a part 13 having an extension 43 in which is housed the extensible seal 49 enclosing the upper part of the stem 36 by which the dipper 30 is operated. The stem is fitted with a dasher 39 and the dipper has a re-entrant part 35 on its under side whereby it is tilted as it is moved downwards to enter the liquid. At the top of its travel the spout 31 of the dipper engages an edge 60 and discharges into the groove. The latter is fitted with a guard plate 21 and a floating seal to prevent refilling of the vessel through the spout. The seal 49, made of paper, has its lower end secured by a split ring, and the stem is guided by a spider 47.
Patent GB-1180302-A (GB)
Title: Improvements in apparatus for Winding Webs of Paper into Reels
Inventor: PALOVAARA JAAKKO SEVERI
IPC: B65H18/20
Filed: 1968-03-14
Abstract: 1,180,302. Winding webs. VALMET OY. 14 March, 1968 [14 March, 1967], No. 12371/68. Heading B8R. A beam 1 supporting rider rollers 4 in a twodrum web-winding machine (Figs. 1 and 2) has means to bend the beam about its longitudinal neutral axis to counteract deflection caused by its inherent weight. The beam 1 is supported by chains 3 via bell-crank levers 12 pivoted on pivot pins fixed to the beam. The vertical arms of the bell-crank levers react with rods 10 and 13 slidably mounted on the beam, whereby the pivot pins respectively compress and tension the beam below and above its neutral axis. The rods 10 and 13 may be fixed at their centre points to the beam. As an alternative only one rod 10 or 13 is provided above or below the neutral axis. In an alternative (Fig. 5), the beam is respectively tensioned or compressed by pneumatic or hydraulic cylinders (16, 17) reacting against the rods. In an alternative (Fig. 6), two rods (18) are pivoted together, and at their outer ends are pivoted to the ends of the beam 1 above the neutral axis, so that the rods form an angle with each other. The common pivot point of the rods is connected to an hydraulic ram mounted on the beam, which subjects the rods to a load which tends to cancel the deflection of the beam.
Patent GB-640502-A (GB)
Title: Improvements in or relating to emulsion paints
IPC: C09D5/02
Filed: 1946-04-24
Abstract: An emulsion paint comprises a disperse phase containing an air-drying oil vehicle in which is dispersed a pigment in an amount of from 20-76 per cent by weight of the disperse phase, a continuous aqueous phase, an emulsifying agent and a naturally occurring organic colloid in an amount of from 4-14 per cent by weight of the disperse phase, and wherein the ratio of the oil vehicle to the colloid is between 6 : 1 and 11.5 : 1.  Suitable oil vehicles include oleoresinous materials such as alkyd and linseed oil-modified alkyd resins, phenol-formaldehyde resins and drying-oil ester-gum compositions.  A volatile solvent, e.g. xylol and/or white spirit, may be added to increase mobility.  Preferred emulsifying agents are cation-active compounds such as quaternary ammonium compounds, ammonia or amides of long chain fatty acids. Specified pigments are titanium dioxide, lithopone and zinc oxide. The specified colloid is casein. Additional protective colloids of a synthetic nature such as methyl cellulose and sodium alginates may be added to the emulsion which may also contain preservatives for the colloids, antifoaming agents and driers. These include borax, caustic soda and cobalt and lead naphthenates.  The emulsion is made by first dispersing the pigment in the oil by means of a mill, adding if necessary the volatile solvent and dispersing the paste in the aqueous medium preferably in a homogenizer mill at an elevated temperature. Specification 555,289 is referred to.ALSO:An emulsion paint comprises a disperse phase containing an air-drying oil vehicle in which is dispersed a pigment in an amount of from 20-76 per cent by weight of the disperse phase, a continuous aqueous phase, an emulsifying agent and a naturally occurring organic colloid in an amount of from 4-14 per cent by weight of the disperse phase and wherein the ratio of the oil vehicle to the colloid is between 6:1 and 11.5:1.  A volatile solvent, e.g. xylol and/or white spirit, may be added to increase mobility. Suitable air-drying oil vehicles are stand oils and drying oils (e.g. linseed oil) which may include rosin and oleoresinous materials (see Group IV (a)).  Preferred emulsifying agents are cation-active compounds such as quaternary ammonium compounds, ammonia or amides of long chain fatty acids.  Specified pigments are titanium oxides, lithopone and zinc oxide.  The specified colloid is casein. Additional protective colloids of a synthetic nature such as methyl cellulose and sodium alginates may be added to the emulsion which may also contain preservatives for the colloids, antifoaming agents and driers.  These include borax, caustic soda and cobalt and lead naphthenates.  The emulsion is made by first dispersing the pigment in the oil by means of a mill, adding if necessary the volatile solvent and dispersing the paste in the aqueous medium preferably in a homogenizer mill at an elevated temperature.  Specification 555,289 is referred to.
Patent GB-1164253-A (GB)
Title: Universal Rollstand.
IPC: B21B13/12
Filed: 1968-03-14
Abstract: 1,164,253. Rolling. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. 14 March, 1968 [17 March, 1967], No. 12510/68. Heading B3M. A universal roll stand for rolling sections or flat bar stock is provided with a pair of horizontal rolls 4 and with a cage 3 supporting either a pair of vertical rolls 5 (Fig. 1 in plan, and Fig. 2), in the same plane as the rolls 4, or with two pairs of vertical rolls 5a, 5b, Fig. 3, which are located in planes parallel to that of the rolls 4. The cage is movable into and out of the housings 2 of the roll stand, and serves as a guide for the chocks 6 of the rolls 4. When rolling sections, the rolls 5 are used, and pairs of screw-down spindles 10a, 10b for the rolls are coupled together by clutches 12 for synchronous adjustment by transmission and servomotor units 11 a, 11b. For rolling flat bar stock, the rolls 5a, 5b are employed, and the spindles 10a, 10b are operated independently after disengaging the clutches 12. Inserts 8, together with the side walls of the cage, serve as guiding surfaces for the roll chocks.
Patent GB-347870-A (GB)
Title: Improvements in tobacco feeding mechanism for cigarettemaking machines
IPC: A24C5/39
Filed: 1930-04-23
Abstract: 347,870. Cigarette-making machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(American Machine & Foundry Co. ; 511, 5th Avenue, New York, U.S.A.) April 23, 1930, No. 12528. [Class 130.] Tobacco feeding mechanism for cigarette machines is provided with a chamber 25 having an apertured wall extending along the picker roll 16, dust and loose particles from the tobacco being carried into the chamber 25 either wholly or partly by the air current produced by the rotation of the picker roll. Tobacco from a main feed drum (not shown) is'fed by a belt 3 to a pin roller 6 rotating over a concave cross member 15, and is showered by the rapidly rotating picker roll 16 through a shoot 17 on to the cigarette paper strip P. The suction chamber 25 is provided with a rotating screw 29 serving to carry the dust to an outlet pipe 31 leading to a suction pump. The screw 29 is driven through sprocket gearing 73 from the shaft 7 of the pin roller 6, which is driven from the main shaft 14 through bevel gearing 12, 13.
Patent GB-164939-A (GB)
Title: Improvements in oil lamp burners
IPC: F21S13/00
Filed: 1920-05-06
Abstract: 164,939. Griffiths, R. W., and Griffiths, T. L., (trading as Griffiths & Sons, E.), and Wolverson, A. E. May 6, 1920. Wick burners, solid-flame.-In burners for vehicle and other lamps the upper and lower wicktube supporting members 1, 7 are secured together by providing the upper member 1 with a bead or flange 6 which is sprung into an annular recess 9 on the lower member 7. The lower part of the member 1 is made resilient by forming it with a longitudinal opening 5 in addition to the wick-operating rod opening 2. The wick tube 8 may be formed with projections 10 engaging the upper end of the member 1, and is secured to the member 7 by flanging its lower end 11 over a washer 12.
Patent GB-967200-A (GB)
Title: Apparatus for cooling granular material
Inventor: GRANATH AXEL GEORGE
IPC: B22C5/08
Filed: 1961-04-07
Abstract: 967,200. Cooling granular material. NATIONAL ENGINEERING CO. OF CANADA Ltd. April 7, 1961, No. 12685/61. Heading F4U. Apparatus for cooling granular material comprises a treating chamber 18 an inlet 23 for the material, an elevator 25 for receiving the material and elevating it upwardly within the chamber, means for introducing gas into a gas inlet 35 so that it flows over the elevator to entrain some of the material a gas outlet 38, means for separating the material from the gas and for exhausting the gas through the outlet 38, means to return the separated material to the chamber 18 and a material outlet in the chamber. Hot granular material e.g. sand, may be sprayed by water whilst being conveyed along the endless belt 11 to the hopper 23 which delivers the sand to the elevator 25. The elevator comprises an endless belt 26 carrying a plurality of angled ledges 27 which pick up and elevate the sand. Air passes over the ledges 27 thus entraining many of the sand particles and cooling them. The air is then drawn by a fan through a tortuous path 37 where the sand is separated and returned to the chamber 18 via the opening 43. Sand which remains on the ledges is thrown outwardly as it passes the edge portion 45a and strikes the damping element 48 formed of flexible material such as rubber. The sand passes to the chamber 46 connected to a discharge hopper which deposits on the belt 11. The belt 26 is placed under tension by the yoke 53 pivoted about the pin 54. The tension may be varied by altering the position of the weight 55. The front run 26a of the belt 26 may be varied in its inclination to the vertical by means of varying the position of the weight 62 along the arm 61a. This weight is pivoted about the pins 60, and the movement of this weight decides the force with which the roller 30 thrusts against the belt 26, and thus decides the inclination of the belt to the vertical. The position of the belt run 26a is also varied to compensate for the varying rates of feeding the incoming sand, and this is done by connecting the bell-crank assembly 58 to the piston 65 which is moved back and forth within a cylinder 66 in response to the load on the motor 30A. Fluid for operating the piston is supplied from a tank 67 by a pump 68. When sand is received at a normal rate then the ledges 27 experience a normal load which induces a normal load on the motor 30A. The loadsensing circuit 72 detects this normal load and causes the blockage of both conduits 70, 71 thus placing the piston 65 in the centre of the cylinder. If the load on the flights 27 is less than normal, then the piston moves to the left and the belt occupies the position shown by the solid lines, thus more sand falls back to the chamber. If the rate of incoming sand increases the belt takes up the position shown by the dotted lines, thus more sand enters the chamber 46.
Patent GB-311763-A (GB)
Title: Improvements relating to the manufacture of artificial threads
IPC: D01D4/00
Filed: 1929-04-24
Abstract: 311,763. Aceta Ges. May 16, 1928, [Convention date]. Grant of Patent opposed. Apparatus for making filaments. - The lack of thermal homogeneity and consequent variation of viscosity in solutions emerging from the spinning nozzle in the dry spinning process, is obviated by guiding the solution in symmetrically disposed streams and in as thin layers as possible along surfaces of a body of high heat capacity placed directly above the nozzle. By making the mass of such a body sufficiently large compared with the volume of solution in contact therewith a homogeneous solution giving a thread of uniform titre is obtained. In the construction shown in Figs. 1 and 2, a comparatively thin hollow cylinder a, attached to the spinning nozzle at f is almost filled by a massive coaxial cylinder b leaving a narrow passage for the flow of solution. Perforations h as shown, or peripheral grooves in the direction of flow in the cylinder b may facilitate the flow. The heat capacity of the cylinder a is increased by external fins g. Bodies of any desired form may be used in place of cylinders and there may be partial contact to minimize temperature inequalities. Or the body may be a single piece with symmetrically disposed passage ways for the flow of solution.
Patent GB-469207-A (GB)
Title: Improvements in parachutes
IPC: B64D17/72
Filed: 1936-05-06
Abstract: 469,207. Parachutes. CAPEL, L. J. M. May 6, 1936, No. 12810. Convention date, May 14, 1935. [Class 4] Relates to parachutes of the kind in which unfolding of the canopy on release from its container is effected by introducing fluid under pressure into dilatable tubes secured thereto. A peripheral chamber 4, Figs. 3 and 8, is secured adjacent the edge of a canopy 2 by cloth bands 3 or other means and a number of radial tubes 9 communicate with chamber 4 and are closed at their upper ends near the apex 22. Chamber 4 is provided with a valve connected by a flexible tube 7 to a gas receptacle 12 carried by the wearer's harness, Fig. 5. Gas is released from the receptacle 12 by a rip cord 15 terminating in a rip ring 21, Fig. 6 ; alternatively, the release valve may be operated directly. Rip ring 21 is also connected to a rip cord 24 serving to operate the pack release means which may be of the knife type. Means are provided for charging receptacle 12 and deflating chambers 4, 9 after descent.
Patent GB-184254-A (GB)
Title: Improvements in and relating to dressing tables
IPC: A47B67/00
Filed: 1921-05-05
Abstract: 184,254. Joseph, M. May 5, 1921. Looking-glasses and mirrors.-In a table provided with central and side mirrors, the side mirror 7 is hinged to one end 8 of a frame 6 pivoted at the other end 5 to cross pieces 4 connecting the uprights 2 of the central mirror to uprights 3, the frame 6 when folded lying between the cross-pieces 4.
Patent GB-550899-A (GB)
Title: Improvements in or relating to systems for modulating high-frequency oscillations with the suppression at least partially of one of the side-bands
IPC: H03C1/60
Filed: 1941-10-07
Abstract: 550,899. Modulating systems. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 7, 1941, No. 12965. [Class 40 (v)] A modulating circuit for giving partial or complete suppression of one side-band whilst permitting undistorted reception with a linear detector, comprises a network KLC to which the carrier is applied, shunted by a modulating voltage source 3 in series with a peak rectifier 2 and a condenser-shunted resistance RC1. The network KLC has high impedance for frequencies between the carrier frequency wand the upper side band limit w+p, and low impedance at other frequencies, as indicated in Fig. 4. The rectifier 4 may be a diode, and the condenser C1 effectively short-circuits the resistance R at modulation frequencies. The modulated output at the terminals 4 has one side-band partially or completely suppressed, but is of such a character that a receiver with a linear detector will give an undistorted output. The network KLC may be modified so that its high-impedance range includes a portion of the lower side-band, thus giving double-sideband transmission for the lower modulating frequencies.
Patent GB-805290-A (GB)
Title: Turn signaling arrangement
IPC: B60Q1/38
Filed: 1956-04-27
Abstract: 805,290. Momentary-contact switches. HOLLINS, J. R. April 27, 1956, No. 12970/56. Class 38 (5). [Also in Group XXXVIII] A restoring switch, for use in vehicle turn signalling equipment, consists of an operating shaft 102 bearing an arm 104 along which a collar 105 is urged against a stop 107 by a spring 108. When the shaft 102 is rotated, collar 105 lifts one of two pivoted latch dogs 110 against restoring springs and then passes beyond theo uter end of the dog if the movement of the control shaft exceeds a certain angle. When the shaft returns to normal the collar 105 rides along the top of the dog until it bridges dog 110 and contact 115. This supplies battery to the release magnet of a selector switch (not shown). In another embodiment shown in Fig. 4, a circular plate 210 is rotated by the control means and carries a bent extension 215 co-operating with spring restrained latch dogs 220. When the control means are operated beyond a certain limit, the extension 215 pushes past one arm of a dog 220 which snaps back into the position shown. If the control means is now restored to zero position, the extension 215 engages the lower arm of a dog 220 and forces the other arm to lift spring 221 and make a contact to energize the release magnet of a selector switch as in the first example. Specification 791,181 is referred to.
Patent GB-685836-A (GB)
Title: Apparatus for thread milling
IPC: B23G1/32
Filed: 1949-05-16
Abstract: 685,836. Milling screw-threads; chucks. PUREFOY, J. BAGWELL-, and COOPER, W. S. May 17, 1950 [May 16, 1949], No. 13002/49. Class 83 (iii). An attachment for milling threads on a tapered surface of a work-piece by means of a rotatable cutter X comprises a member C slidably mounted in a fixed housing A and having a bore inclined to the axis of the machine at an angle corresponding to the taper of the work-piece, a sleeve G being rotatably carried in the member C and constrained to move axially therewith and being provided with a collet R and nut S for holding the work-piece. The sleeve G is connected to the driving-shaft M by means of a universal joint N which is carried in a sleeve O so as to be free to slide axially with respect to the driving shaft.
Patent GB-1298102-A (GB)
Title: Addition products of amines with lactams
IPC: C08G59/54
Filed: 1970-03-18
Abstract: 1298102 Amine-lactam addition products INVENTA AG 18 March 1970 [20 March 1969] 13045/70 Heading C2C Compounds of the general Formula I where n is an integer from 5 to 11, R1 is a C 1-4  alkyl radical and R 2  is a bivalent aliphatic, cycloaliphatic or aromatic hydrocarbon radical which may be interrupted by ether, thioether and/or secondary or tertiary amino bridges are prepared by reacting an N-alkyl lactam of formula (or a mixture of such lactams) with a polyamine of formula H 2 N-R 2 -NH 2  (or a mixture) at above 200 C., and in which process the reaction mixture always contains at least one mol of polyamine per mol of lactam that has reacted. Compounds of Formula I are claimed per se in 1,235,805.