baber/WOPTO huggingface dataset:
Patent GB-371162-A (GB)
Title: An improved carding machine for jute and like fibres
IPC: D01G15/18
Filed: 1931-04-18
Abstract: 371,162. Carding-engines for jute &c. BURGESS, S., 41, St. Vincent Place, Glasgow.-(Angus Co., Ltd. ; 3, Clive Row, Calcutta, India.) April 18, 1931, No. 11539. [Class 120 (i).] The card-covered roller 12, Fig. 1, which functions as a combined doffer, feeder and worker between the oppositely-rotated cylinders 7, 14 in a combined breaking and finishing carding-engine for jute and like long bast fibres, is provided with an angle feed-plate or bar 13 arranged in the angle between the roller 12 and the cylinder 14 and in close proximity thereto. The machine comprises a feed-lattice 3, a lickerin 4 having a guard 5 and feed-plate 6, workers 9, 9a, strippers 10, 10a and roller guards 11, 11a associated with the first cylinder 7, workers 15 and strippers 16 associated with the cylinder 14 and doffing and delivery mechanism 17, 22. The angle plate or bar 13 co-operates with both the roller 12 and the swift 14 and forms part of the housing 5a for the roller 12. In a modification, the casing 5a is extended to accommodate auxiliary rollers 25, 26, Fig. 2, the roller 25 serving to strip fibre from the swift 7 and return it to the roller 12 while the roller 26 acts as a worker on the roller 12.
Patent GB-623334-A (GB)
Title: Hose couplings
IPC: F16L37/23
Filed: 1947-04-30
Abstract: 623,334. Hose couplings. EASTMAN, 1. LE C. April 30, 1947, No. 11637. Convention date, Nov. 15, 1943. [Class 99(i)] In a hose coupling in which a spigot 3 is locked in a socket 8 when it is pushed into it, balls 16 are mounted in a spring- loaded, axially movable cage 15, and engage a groove 4 in the spigot and the tapered end 30 of the bore of the socket. The spigot opens a valve 18, and a releasing sleeve 23 engaging the ball cage is provided on the socket.
Patent GB-494109-A (GB)
Title: Improvements in aircraft gun mountings
IPC: F41A27/30
Filed: 1937-04-23
Abstract: 494,109. Aircraft gun mountings. VICKERS (AVIATION), Ltd., and WALLIS, B. N. April 23, 1937, No. 11642. [Class 92 (i)] Relates to gun mountings of the type described in Specification 478,955 in which the gun is pivotally carried at g<2> on an arm a which can be moved about trunnions b to the position shown in Fig. 1 for stowing the gun, or to the upright position shown in Fig. 3, in which latter position the arm can be slewed about the axis of a barrel support e against the action of a centralizing spring system to positions as shown in Fig. 6 ensuring a wide field of fire. According to the present invention, a crank arm g<3> for the gun sight socket at the outer end of the arm a is provided with mechanism, such as opposed racks within the arm, for maintaining the plane of rotation of the crank horizontal notwithstanding the slewing movements of the arm, the arm being centralized and balanced by springs h, h<1> housed within the arm. The lower end of the arm carries a pinion g<10> having projections g<11> which, on uprighting the arm, engage teeth e<2> on the fixed support e. Opposed racks g8, g9, Fig. 6, engage the fixed pinion g<10> during the slewing movement and act through outer racks g<6>, g<7> on a pinion g supporting the crank g<3>. Further, the racks carry abutments g<12>, g<13>, g<14>, g<15> for engaging the springs h, h<1> that centralize and balance the arm as the arm support c moves round the axis of the barrel e. The support c carries a pivoted catch engaging fixed teeth f<3> to lock the arm in its slewing movement, the catch being released by a cam lever k<5> actuating a rod k in the arm. The arm is retained in the erected position by a releasable catch d2.
Patent GB-245715-A (GB)
Title: Improvements in or relating to steel
Filed: 1925-05-05
Abstract: 245,715. Wills, C. H., (Assignee of Smith, J. K.). Jan. 10, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Extracting. - Steel is made from solid produced iron in an open-hearth furnace, preferably by the process described in Specification 245,717.
Patent GB-1087744-A (GB)
Title: Polyurethanes
IPC: C08K5/103
Filed: 1966-03-17
Abstract: A polyurethane based composition comprises a mixture of (1) 100 parts by weight of a thermoplastic polyurethane which is (A) a polyester-urethane prepared by reacting (a) 1 mol of an essentially linear hydroxyl terminated polyester of (i) a saturated aliphatic glycol containing 2 to 10 carbon atoms and (ii) a dicarboxylic acid of the formula HOOC-R-COOH, where R is an alkylene radical having 2 to 8 carbon atoms, or the anhydride of said acid, the polyester having a M.W. of 600 to 2000, a hydroxyl number of 50 to 180 and an acid number of less than 10 (b) from 1.3 to 3 mols. of aromatic diisocyanate and (c) from 0.3 to 2 mols of a saturated alkylene glycol containing 2 to 6 carbon atoms, the molar amount of (a) and (c) being essentially equivalent to the molar amount of (b) or (B) a polyetherurethane prepared by reacting (1) 1 mol of a compound of the formula HO[(CH2)nO]xH wherein n is an integer from 3 to 6 and x is an integer greater than 7 and the M.W. is from 500 to 4000; (2) from 1.5 to 3 mols of aromatic diisocyanate and (3) from 0.5 to 2.0 mols of a saturated alkylene glycol containing 2 to 6 carbon atoms, the molar amount of (1) and (3) being essentially equivalent to the molar amount of (2) and (II) a diester of triethylene glycol and an aliphatic, saturated, monocarboxylic acid having 8 to 10 carbon atoms, the amount of diester combined with the polyester urethane (A) being 1 to 10 parts by weight and the amount combined with the polyetherurethane (B) being from 1 to 35 parts by weight.  The polyester (a) is suitably prepared by reacting more than one mol of glycol per mol of acid.  Suitable glycols for polyester formation are ethylene glycol, 1,2-propanediol, 1,4-butanediol, 1,5-pentanediol and 1,6-hexanediol and suitable acids are adipic, succinic, pimelic, suberic, azelaic and sebacic or their anhydrides.  The preferred polyether (1) is a hydroxy poly(tetramethylene oxide) having a M.W. of 900 to 3000.  Suitable alkylene glycol chain extenders (C) and (3) are ethylene glycol and 1,4-butane diol.  The preferred aromatic diisocyanates are diphenyl diisocyanates having an isocyanate group on each phenyl nucleus, e.g. diphenylmethane - p,p1 - diisocyanate. The diester (II) may be triethylene glycol dicaprylate, triethylene glycol di-2-ethylhexoate, triethylene glycol caprylate-caprate and triethylene glycol dipelargonate.  In general, the compositions are prepared by blending the polyurethane and the triethylene glycol diester at a temperature of 100 DEG  to 185 DEG  C.
Patent GB-1066662-A (GB)
Title: Improvements in or relating to controllers for machines
IPC: F16P3/20
Filed: 1964-03-20
Abstract: 1,066,662. Machinery safety devices. F. P. McKELLEN. April 8, 1965 [March 20, 1964], No. 11843/64. Heading F2J. [Also in Division H2] A two-handed safety operating device for a machine, comprises two separate starting switches 10, 11 closure of which closes for a predetermined interval switches RL12A, RL13A in series with a starting relay RL14 which is thus only energized when both switches 10, 11 are closed simultaneously, or substantially so. Closure of switches 10, 11 respectively energizes relays RL10, RL11 to change over switches RL10A; RL10B; RL11A; RL11B. Change over of switches RL10A, RL11A permits condensers C10, C11 to discharge through and energize for a predetermined interval relays RL12, RL13 which close switches RL12A, RL13A. When both switches 10, 11 are closed simultaneously to energize the starting relay RL14, the latter closes a holding switch RL14A in series with the switches RL10B; RL11B so that the relay RL14 remains energized whilst both switches 10, 11 are closed. The relay RL14 is de-energized when either switch 10 or 11 is opened and remains so until the other switch is opened and both switches are reclosed simultaneously. The relay RL14 may, as shown, operate a switch RL14B in the circuit of a driving electric motor or may control an hydraulic or pneumatic valve or a clutch which effects starting a machine.
Patent GB-543329-A (GB)
Title: Improvements in and relating to electric measuring or detecting apparatus for indicating and recording movements
IPC: G01B3/00
Filed: 1940-07-18
Abstract: 543,329. Measuring displacements. DAVIS, N. R., WETHERILT, J. N., and SUN-VIC CONTROLS, Ltd. July 18, 1940, No. 11862. [Class 40 (i)] [Also in Group XXXVII] Apparatus for indicating or recording small displacements comprises a pair of contacts or other control elements such as condenser plates or inductances, the constant pressure or relative position of which is controlled by a mechanical connection of one of them to a piezo-electric crystal to which voltage is applied over a circuit including the elements, the contact pressure or relative position being also controlled mechanically by the member subject to displacement so that the voltage applied to the crystal is a measure of such displacement. As shown, the crystal comprises two strips 1, 2 with conductive coatings 3-5, voltage being applied across 3, 4 and 2, 5 and the strips being so cut that 1 lengthens and 2 shortens on application of voltage. Strip 2 carries a contact 7 insulated from coating 5 and co-operating with a spring-controlled contact 8 the position of which is determined by the member (not shown) subject to displacement. The applied voltage is derived from the output resistance 24 of a valve having alternating voltages applied to its anode and grid from inductors 22, 23. When contacts 7, 8 are open, the grid voltage is derived from transformer secondary 30 and is such that the valve passes current whereupon the voltage built up over resistance 24 and applied to the crystal causes closure of the contacts so that secondary 33 is brought into circuit, the valve ceases to conduct and the contacts 7, 8 tend to re-open. The arrangement may be such that the contacts definitely open and close or that the contact or arc resistance varies, and the contact 7 assumes or vibrates about a particular position for each position of contact 8 controlled by the displacement member, but for any given position of that member, the anode current has a corresponding average value which is measured by instrument 21. The contacts may alternatively control directly the voltage applied to the crystal and measuring instrument. The displacements may be due to temperature or pressure variations.
Patent GB-316121-A (GB)
Title: Improved method of influencing an electric current by means of radiation
IPC: H01J40/00
Filed: 1928-04-23
Abstract: 316,121. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). April 23, 1928. Vacuum tubes. - The current or voltage in a circuit is influenced by means of radiation which is caused to strike a discharge tube included in the circuit and containing a filling of a main gas or vapour the atoms of which can be brought into a metastable condition, and a small quantity of another gas the atoms of which can be ionized by metastabl,e atoms of the main gas. The filling may consist of neon mixed with about 0.001 per cent of argon. In the circuit shown, a tube 1 having the described filling is energized by a battery 2 and the current due to ionization of the argon by the metastable neon atoms is measured by a meter 4. Radiation is then caused to fall upon the tube 1 from a luminous neon tube 6 coiled about it, with the effect that some of the neon atoms revert to the stable condition and the ionization of the argon is diminished and the current passing through the tube decreased. If alternating current be used to energize the tube 6 its variations may be recorded bv an instrument in the circuit of the tube 1.
Patent GB-878455-A (GB)
Title: Panty with hygienic band
IPC: A61L15/16
Filed: 1960-04-05
Abstract: 878,455. Sanitary knickers. MUTO, M. April 5, 1960 [Nov. 19, 1959], No. 11966/60. Class 81 (2). Sanitary knickers 1 have the crotch part 2 lined with waterproof material 4, such as nylon, and, under front and rear flaps 3 there are buttons 6 to which may be attached a band 7 comprising a strip of foamed synthetic resin, such as polyurethane. The ends of this band are suitably reinforced in the vicinity of the button holes.
Patent GB-436885-A (GB)
Title: Improved process for the production of mixed esters of polyhydric alcohols and of carbohydrates
IPC: C08B3/16
Filed: 1934-04-20
Abstract: Mixed esters of polyhydric alcohols, for example cellulose, are prepared by reacting the polyhydric alcohol with ketene in the presence of one or more organic carboxylic acids in amount substantially in excess of the polyhydric alcohol.  Examples of suitable polyhydric alcohols are cotton, wood pulp, low esterified or etherified celluloses, sorbitol, glycerol, glucamine, penta-erythritol, inositol, quebrachitol, starches, and sugars. Organic acids specified are formic, propionic, butyric, valeric, caproic, heptoic, lauric, stearic, oleic, palmitic, erucic, linoleic, pyrivic, levulinic, acrylic, crotonic, isovaleric, benzoic, naphthoic, toluic, furoic, chlorobenzoic, picolinic, phenylacetic, cinnamic, linseed oil acids, chinawood oil acids, cottonseed oil acids, and fatty oil acids generally.  The following examples are given: (1) Cotton linters are esterified by means of propionic acid and ketene in presence of sulphuric acid. The primary acetate-propionate may be partially hydrolyzed.  (2) Cotton linters are mixed with hydrofluoric acid and n-butyric acid, and ketene is passed into the mixture.  The cellulose acetate-n-butyrate may be subjected to hydrolysis.  (3) Cotton linters are esterified in a mixture containing hydrofluoric acid, pyruvic acid, and ketene.  (4) Cotton linters are esterified by means of propionic acid, coconut oil acids, and ketene in the presence of sulphuric acid.  The product may be partially hydrolyzed.  (5) Monoethyl cellulose is esterified by means of propionic acid and ketene in the presence of sulphuric acid. (6) Cotton linters are pretreated with formic acid and esterified as in the first example.  The reaction may be carried out in the presence of solvent or non-solvent diluents.  The cellulose esters may be used in the preparation of coating compositions, films, fibres, and plastics, while the products obtained from polyhydric alcohols are suitable for adhesives and plasticizers, and for use in coating and impregnating compositions.  The Specification as open to inspection under Sect. 91 refers also to the treatment of cellulose with a mixture of ketene and nitric acid which has been dehydrated by means of acetic anhydride.  This subject-matter does not appear in the Specification as accepted.
Patent GB-353062-A (GB)
Title: Improvements in and relating to methods of operating furnaces for brazing, annealing, and the like
IPC: C21D1/74
Filed: 1930-04-16
Abstract: 353,062. Annealing. BRITISHTHOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of McFarland, J. L.; 1268, Parkwood Boulevard, Schenectady, New York, U.S.A.) April 16, 1930, No. 12070. Convention date, April 19, 1929. [Class 72.] In a method of operating a furnace such as a brazing or annealing furnace in which a working medium of explosive character such as hydrogen is used, the furnace chamber is heated substantially to its operating temperature while filled with air and the working medium then introduced, a non- explosive gas such as nitrogen being used either to purge the furnace of air or to form a non-explosive mixture while the furnace is purged of air by the working medium. Similarly when rapidly cooling the furnace a non-explosive medium is used either to purge the chamber of the working medium or to form a non-explosive mixture before admitting the cooling air. The furnace may be of the kind described in Specification 301,431, [Class 51 (ii), Furnaces and kilns for applying &c.], comprising a cylindrical gas-tight steel casing 10 part of which forms a heating chamber 13 lined with top, bottom, and side walls 12 of refractory bricks and having relatively small inlet and outlet passages 13a, 13b. Heating means such as electric resistors 15 are supported within the chamber 13 on supports 16. The remaining portion of the casing forms a cooling chamber provided with a water-jacket 22. The metal articles 27 to be treated are fed to the heating chamber through an opening 18 by an elevator 35, pushed through the furnace on tracks 25, 26 by means of a hydraulic motor 40 and removed from an opening 19 at the end of the cooling chamber by an elevator 36. Doors 43 seal the openings 18, 19 when the elevator trays are lowered and the articles 27 and their supports practically close the passages 13a, 13b or the heating chamber. To ensure that the pressure in the chamber is above atmospheric, gas is allowed to escape through a small tube 44a when it is ignited to serve as an indicator. Pipes 44, 45 are used for the introduction of the working medium and for the escape of the air diluted with the purging gas, the character of the issuing gas being continually tested. If pure hydrogen is used as the working medium it is admitted in sufficient quantity to purge the furnace of the purging gas. If, however, a mixture of hydrogen and nitrogen forms the working medium, pure hydrogen may be added to the non-explosive air-purging gas to bring its hydrogen content to the required value. Reference has been directed by the Comptroller to Specifications 14063/90, [Class 72, Iron &c.], and 11103/14, [Class 51 (ii), Furnaces and kilns for applying &c.].
Patent GB-514058-A (GB)
Title: A process for the manufacture of water-soluble urea-formaldehydepolyhydric alcohol condensation products
IPC: C08G12/42
Filed: 1938-04-22
Abstract: 514,058. Urea-formaldehyde-polyhydric alcohol condensation products. BECK, KOLLER & CO. (ENGLAND), Ltd. (Beck, Koller & Co., Inc.). April 22, 1938, Nos. 12143 and 32565. [Class 2 (iii)] Stable water-soluble products, for use in aqueous solution for film-forming, impregnating fabrics &c., are obtained by heating in the presence of an alkaline catalyst urea, formaldehyde and ethylene glycol in molecular ratios of 1:3-5:1-5 respectively. Ammonia is the preferred catalyst but other volatile alkaline catalysts may be employed. To augment speed of baking and to improve .water and alcohol resistance of the film 0.004-0.005 mols. of phosphoric acid per mol. of urea may be added. Examples are given with different, molecular ratios of the starting materials using ammonia as catalyst also of the addition of phosphoric acid and of baking.. The products may be employed for sizing paper, for making laminated articles and for rendering fabrics greaseproof and creaseproof.
Patent GB-272023-A (GB)
Title: Device for testing the radiations emanating from organisms
IPC: A61B10/00
Filed: 1926-05-12
Abstract: 272,023. Holzheimer, A. May 12, 1926. Diseases, diagnosing by pendulum apparatus. -Apparatus for testing the radiations from an organic structure, such as a hand, feather, or plant leaf, for determining the state of health of the individual to which the structure belongs and the kind of nourishment required, comprises a blackened chamber 2 to receive the structure and fitted with a lateral inlet 3 and a lid 4 having a blue or other dark coloured glass plate 5. A glass pendulum 26 ground to a rose is suspended over the plate 5 by a silk thread held by the person making the test and indicates the nature of the radiations by its movements, which may be interpreted by reference to a chart. A compartment 7 adjacent the chamber 2 is fitted with a false bottom 12 with apertures to receive 16 dished cardboard plates 13 each filled or painted with a different colour, and is closed by a glass plate 15 having cavities 16 and apertures 17 located over the coloured plates. A metal handle 21 which may be held by the tester is connected by wires 23 to plugs 24 for insertion in the apertures 17. The plugs 24 are covered by insulating sleeves 25. A second chart is provided for use when the coloured plates are used. A third compartment 8 is provided for the reception of instruments.
Patent GB-1345386-A (GB)
Title: Collet
IPC: B23B31/14
Filed: 1971-04-20
Abstract: 1345386 Chucks DIGITAL SYSTEMS Inc 29 April 1971 [1 May 1970] 12231/71 Heading B3B [Also in Division H2] A collet for insertion in a rotatable spindle of a machine tool comprises an end for receiving a tool, e.g. a drill 11, in a bore 13, and an end for inserting into a bore in the spindle the said latter end comprising a plurality of segments 18 connected resiliently at a reduced section 17 of the body of the collet to enable the collet to resiliently grip and hold in the bore of the spindle while it is stationary without any other fastening device, and when the spindle rotates centrifugal force acting on the segments 18 grips the collet to the spindle.  The collet is mounted in the spindle of a machine tool head (Fig. 2, not shown) which comprises a motor stator mounted in a housing and a rotor mounted on the spindle. The spindle is mounted at each end on air bearings supplied with pressurized air, which also passes through the air gap between the rotor and stator to form an air bearing thereat.
Patent GB-484435-A (GB)
Title: Vending machines
IPC: G07F11/60
Filed: 1937-04-30
Abstract: 484,435. Coin - freed article - delivery apparatus. HAERSOLTE, W. VAN. April 30, 1937, No. 12363. Convention date, April 30, 1936. [Class 27] Articles are stored in compartments arranged in pairs of columns 2, 3, Fig. 1, which are coupled together to move up and down in opposite directions past doors 8, 9 in a casing 1, means being provided for unlocking each of these doors by the insertion of coins of predetermined value so as to obtain the articles in the selected compartments. The columns are connected by a chain 7 passing over pulleys 4 and a chain wheel connected to a hand wheel 5. Coin-action, weight.-The doors 8, 9, Fig. 4, are hinged vertically and have extensions 10, 11 respectively which are normally engaged by the front ends of levers 12, 13 to hold the doors closed, these levers being pivoted at 15, 16 and passing respectively through holes in vertical levers 18, 19, Fig. 3, pivoted at 17 and forming the armatures of electromagnets 20, 21. Rails 32, 33 having notches 34 move with the columns and, when a compartment is correctly positioned in front of a door, a spring-pressed roll 35, carrying a mercury switch 36, enters a pair of notches in the rails thereby closing an electric circuit at the switch. The switch 36 is in series with mercury switches 37 associated with the magnets 20, 21, these switches 37 being carried by levers 38 which normally enter respectively the coin shoots 25, 26 corresponding to the columns. If the purchaser desires an article selected from column 2, he inserts a coin through a tester 24 into the shoot 25 for that column. The coin engages a pin 40 on the lever 38 of the switch 37 provided for that column and rocks the switch to close the circuit of magnet 20, the coin being detained in the shoot by resting on a pin 30 carried by lever 18. The magnet 20 pushes the lever 18 causing the pin 30 to leave the shoot and allow the coin to drop to a monev-box 27. The movement of the lever 18 also rocks the lever 12, which frees the door 8. The door extension 10 is connected to the lever 12 by a spring 14 so that the door is thereby opened. The rear end of the lever 12, when it is rocked, enters one of the notches 34 in the rail 32, thereby preventing the columns 2, 3 from being moved while a door is open. Indicators.-The switch 36 controls a circuit of a lamp or bell which indicates when a compartment is correctly located in front of a door.
Patent GB-256690-A (GB)
Title: Improvements in or relating to cabinets for electrical apparatus
IPC: H04B1/08
Filed: 1925-05-12
Abstract: 256,690. Benstead, A. G., and Rotax (Motor Accessories), Ltd. May 12, 1925. Receiving sets, construction of.-A cabinet for electric apparatus, such as wireless receiving sets, having a panel 10 carrying controls and a lid or other closure member 14 has an inner lid 15 of transparent or translucent material to prevent the access of dust or the like to the panel. The panel is inset and supported on a ledge 12.