baber/WOPTO huggingface dataset:
Patent GB-929247-A (GB)
Title: Apparatus for use in the practice of ball games such as tennis, cricket and the like
IPC: A63B69/00
Filed: 1961-04-10
Abstract: 929,247. Games practising devices. D. A. BOUGHTON-THOMAS. April 9, 1962 [April 10, 1961], No. 12753/61. Class 132 (2). A device for use in practising ball games to return balls which are projected thereat, comprises a net b preferably of nylon, lashed tautly by a rubber or other elastic cord c to a tubular frame a, the latter having props d pivotally mounted thereon so that the inclination of the device relative to the ground may be varied. In a modification, the lower edge of the framework is provided with two legs, and the props d may in this latter instance be telescopic.
Patent GB-1026430-A (GB)
Title: Improvements in or relating to the cleaning of cyclone dust collector cells
Inventor: LAXTON JOHN REGINALD
IPC: B04C7/00
Filed: 1964-03-26
Abstract: 1,026,430. Cleaning cyclone separators. W.C.HOLMES & CO Ltd. March 10, 1965 [March 26, 1964], No. 12771/64. Heading B2P. An apparatus for operating simultaneously the rotatable cleaning elements of each cell of an assembly of juxtaposed cyclone dust collector cells comprises a supporting structure 10 mounted above the assembly of cells (not shown) and a sub-structure 20, 22 carried by the structure 10 and imported a planar gyratory motion relative to the structure 10 by means of an electric motor 15 via drive connections, the sub-structure 20, 22 being connected to the cleaning elements of each cell in such a manner that its gyratory motion causes the cleaning elements to rotate. The structure 10 comprises a plate 12 and cross-stays 14 providing a platform 16 for the mounting of the motor 15. The sub-structure is formed by members 20 and 22 extending respectively, longitudinally and transversely of the plate 12, Fig. 1 (not shown), and supported thereon by means of fall castors 24, Fig. 3 (not shown) depending from each of the members 20. The motor 15 is connected through a gear box 28 to driving spindles 30, 32 each connected to gearing 34 where output shaft 36 is connected via a crank 39 to a stud shaft 38 mounted on each of the-outermost members 20 whereby gyratory motion is imparted to the structure 20, 22. Spindles 40 of the cleaning elements of the cyclone cells extend through the plate 12 and are connected to the members 22 via cranks 44 and pins 44 so that the gyratory motion of structure 20, 22 causes rotation of the spindles.
Patent GB-687324-A (GB)
Title: Smoking oven
IPC: A23B4/052
Filed: 1951-05-30
Abstract: 687,324. Smoking foods. THON, C. May 30, 1951, No. 12785/51. Class 49. In a chamber for the smoking of food there are screens arranged to guide smoke introduced into the lower part of the chamber along the wall of the chamber back to the same part. Such descent of the smoke may be facilitated by a cooling arrangement for the chamber wall. In the embodiments of the drawings, a chamber 1 has supports 5 for the food to be smoked, a cold water jacket 3 on the wall 2 of the chamber, a smoke producer 6, and screens 10 and 11, the latter being bent upwardly at their lower parts 12; the screens 11 cause the ascended smoke to follow the side walls of the chamber back to the lower part thereof, the screens 11 extending underneath the smoke producer 6 in the arrangement of Fig. 1, wherein combustion air enters the smoke producer from below through slots 13, and the screens 11 terminating above the smoke producer 6 in the arrangement of Fig. 2, wherein the smoke producer may be for the combustion of oxygen-containing fuels.
Patent GB-772796-A (GB)
Title: Improvements relating to electric vacuum cleaners
IPC: A47L9/28
Filed: 1955-05-03
Abstract: 772,796. Vacuum cleaners. GENERAL ELECTRIC CO. May 3, 1955 [May 6, 1954], No. 12839/55. Class 8(1) In a vacuum cleaner comprising a casing 10 closed at one side having a wheel 12 mounted thereon, a motor and fan. unit '24 in the casing, a guard 32 mounted within the casing with one end attached to the discharge chamber 30 and the other extending toward the open side of the casing and having a disc portion 34 to which is secured a cup-shaped cover 46. the disc portion and cover forming a chamber 56 in which is mounted a switch 78 and a socket 64 for the plug of an electric lead, the cover 46 detachably supports an assembly 92 compming a casing closure lid 94, a collar 112 and a wheel 14. The wheel 14 has a laterally displaced annular portion 120 for protecting the push-button 90 of the switch, further protection being provided by a protuberance 118 formed on the collar 112; Specifications 765,320 and 772,795 are referred to.
Patent GB-787056-A (GB)
Title: Improvements relating to the production of tetracycline by the hydrogenolysis of chlortetracycline
Filed: 1955-05-04
Abstract: Tetracycline is produced by reacting hydrogen with chlortetracycline in the presence of a palladium hydroxide catalyst, preferably distributed on a porous carrier such as activated carbon, activated alumina gel and diatomaceous earth. The catalyst is preferably prepared by precipitation from a water solution of palladium chloride by adding a water-soluble base such as sodium hydroxide, potassium hydroxide and ammonium hydroxide until the pH is 9 to 10.  In the case of the supported catalyst, the precipitation is carried out in the presence of the finely divided carrier.  The catalyst may be used wet, i.e. as separated from the reaction media, or dry.  The catalyst is used in proportions of 0.25 to 3 per cent by weight of the chlortetracycline.  The supported catalyst contains 5 to 15 parts by weight of palladium hydroxide distributed on 95 to 85 parts of the porous carrier.  The catalyst is suspended in a solution of chlortetracycline in an organic solvent and the reaction with hydrogen is carried out at a temperature of 0 DEG  to 100 DEG  C. and preferably 15 DEG  to 40 DEG  C.  Suitable solvents are the ethyl ether of ethylene glycol, beta-methoxyethanol, n-butanol, methanol, ethanol and mixtures thereof.  The reaction is preferably carried out at a pH of 7 to 9.5.  Reference has been directed by the Comptroller to Specification 747,779.
Patent GB-1164095-A (GB)
Title: A Method of Preparing Photographic Light-Sensitive Elements
IPC: G03C1/38
Filed: 1968-03-18
Abstract: 1,164,095. Photographic light-sensitive elements. FUJI SHASHIN FILM K. K. March 18, 1968 [March 17, 1967], No. 12939/68. Heading G2C. A coating aid of the general formula where R is an alkyl group of 8-20 carbon atoms, e. g. dodecyl or tetradecyl, and p and q are each positive integers, e. g. the sum of p and q is 2, 5 or 30, is added to a coating composition used in preparing a photographic light-sensitive element. The composition may be a silver halide emulsion or a gelatine coating composition each containing an oil-dispersed colour coupler.
Patent GB-1462671-A (GB)
Title: Ribbon cables
IPC: H01B7/08
Filed: 1974-03-25
Abstract: 1462671 Flat cables W L GORE & ASSOCIATES Inc 25 March 1974 [16 Aug 1973] 13074/74 Heading H1A [Also in Division B5] A method of making an easily strippable ribbon cable comprises interposing conductors 13 between elongate sheets 14, 15 of electrical insulation and passing the assembly between two rollers 10, 12 one of which has a depression 5 to periodically relieve the bonding pressure, the resulting cable, see Fig. 6, having bonded sections of insulation alternating regularly with unbonded sections. Strips 14, 15 may be coated with an adhesive or bonding may be effected by heated rollers which render the sheets of insulation tacky. When the sheets 14, 15 are of extruded unsintered polytetrafluorethylene unheated rollers are used and the assembly then passes through an oven 16 at 390‹ C. to sinter the polytetrafluorethylene. The oven may also be used to heat-set any adhesive. An illustrative example is described in which the strips 14, 15 are 2À125 inches wide by 0À006 inch thick, the rollers, unheated are 6 inches long by 4 inches in diameter and carry semicircular grooves 12, aligned with the conductors 13 with a radius of 0À038 inches at axial spacings of 0À025 inchs. One roller has a rectangular flat spot 5 1À62 inches long (in the direction of the roller axis) by 1 inch wide, and the closest distance between the rollers is 0À004 inches. The conductors 13 comprise 12 twisted pairs of AWG 26 stranded wire with primary insulation of polytetrafluorethylene 0À006 inch thick.
Patent GB-581875-A (GB)
Title: Improvements in drilling and like machines
IPC: B23B49/00
Filed: 1944-07-10
Abstract: 581,875. Drilling. POBJOY AIRMOTORS & AIRCRAFT, Ltd., and STENHOUSE, J. July 10, 1944, No. 13149. [Class 83 (iii)] The depth of feed in a drilling &c. machine, particularly a portable machine, is limited by a stop attached to the casing or other fixed part and contacting with the work. A sleeve 10, attached to the casing 11, carries a stop 14 surrounding the drill. A screw 141 engages a helical slot to adjust the amount of feed, or in a modification the parts 10, 14 have a screwed connection. A scale and vernier may be provided to indicate the setting and apertures 143 provide for the escape of cuttings.
Patent GB-947885-A (GB)
Title: Improvements in or relating to the preparation of chromanols
Inventor: GREEN JOSEPH
IPC: C07C66/00
Filed: 1961-04-12
Abstract: 2, 5, 7, 8-Tetramethyl -2-(21-carboxyethyl) chroman -6-ol is prepared by condensing g -vinyl-g -valerolactone with 2, 3, 5-trimethylquinol at a temperature between room temperature and 150 DEG C. in an inert solvent in the presence of boron trifluoride and hydrogen fluoride. Temperatures of between 80 and 120 DEG C. are preferred and di-isopropyl ether may be the solvent.  The chromanol may be oxidised with ferric chloride or ceric sulphate to 2-(3-hydroxy-3-methylcar-boxypentyl) -3, 5, 6-trimethyl benzoquinone and converted by azeotroping with benzene to the tocopheronolactone.
Patent GB-765736-A (GB)
Title: Improvements in or relating to protective coatings for preventing corrosion of iron or steel surfaces
IPC: B05D3/02
Filed: 1953-05-12
Abstract: Corrosion of iron or steel surfaces is prevented by coating the surfaces with a plastic pitch derived from coal tar, the coating process comprising contacting the surfaces with a melt of the pitch at 100 DEG -250 DEG C. until gas bubble formation ceases, draining off the pitch to leave a layer of 0.5 to 2mm. thickness adhering to the surface and allowing the layer to cool and solidify, the process being repeated when a thicker protective layer is required.  The pitch is prepared from coal tar pitch which is softened by admixture with tar oil to the required plasticity or by "blowing" coal tar or coal tar pitch with air at 200 DEG -300 DEG C. The plastic pitch may be mixed with a minor proportion of coal dust.  Specification 759,145 [Group II] is referred to.
Patent GB-322419-A (GB)
Title: An improved automatic tub axle lubricator
IPC: F16N7/18
Filed: 1929-04-30
Abstract: 322,419. Burn, E. O. April 30, 1929. Lubricant conveyed by mechanical means; force-feed lubricating.-A fixed lubricator for corve and like axles comprises a hollow externallytoothed wheel f carried by a lever c pivoted on a lubricant trough a and supported at its other end by a spring g. A toothed wheel q carried by the lever c engages internal teeth n on the wheel f corresponding to the external teeth m. Apertures p are provided between the teeth. In operation, passing axles s engage the teeth w. causing the wheel f to be rotated and depressed, with consequent rotation of the wheel q, the rebound being limited by an adjustable stop h. During this depression and rebound, lubricant is forced into the wheel f from the trough and is ejected on to the rearward side of the axle by the engagement of the teeth of the wheel q in the apertures p. A spring wiper v mounted on the stop h removes surplus lubricant from the axles, and scrapers t bearing on the rim of the wheel f clear of the teeth m return adhering lubricant to the trough.
Patent GB-200067-A (GB)
Title: Improvements in railway rail-joints
IPC: E01B11/62
Filed: 1923-05-18
Abstract: 200,067. Kourtzman, P. A. June 28, 1922, [Convention date]. Rail joints, bridge. -Rail ends 5 joined by fish-plates 7, 8 are seated upon a central raised portion 3 of a resilient base-plate 2 secured to the sleepers adjacent to the joint, the plate 2 having a jaw 11 which engages one rail base and a jaw 12 which receives two wedges 13 driven between the fishplate 8 and the jaw 12 and secured by screws 14.
Patent GB-611491-A (GB)
Title: Improvements in and relating to advertising or display devices
IPC: G09F1/04
Filed: 1946-05-02
Abstract: 611,491. Showcards. WARDLE E., JONES, H., and TODD, C. I., (trading as WARDLE & CO., E.), and CLARE, F. M. May 2, 1946, No. 13350. [Class 3(ii)] An advertising or display device comprises a background member 13, and representation-forming sheets 15, 16, 17 attached top and bottom to the background member 13, which member and the sheets each have a central score line 14, 19, so that when folded the sheets lie inside the two parts of the background member, a strut 20 being provided to hold the halves of the member 13 in line when erected. The member 13 is hingedly connected by a shelf 11 to a front piece 10, and the sheets 17 are 'hingedly connected to the sheets 15, 16 at their ends. Sheet 15 is stuck to the shelf 11 and sheet 16 is stuck by tabs to the upper part of member 13. In the erected position the strut 20, which is hinged to the front 10, supports the shelf 11 and keeps the background 13 upright by means of interlocking slots 26, 25. Sheet 16 is supported by a projection 24 on the strut 20, thus keeping the edges 17a in abutment. Further stiffening is provided. by a tongue on the strut engaging a slot at the base of the member 13.
Patent GB-495441-A (GB)
Title: Improvements in and relating to x-ray tubes
IPC: H01J35/10
Filed: 1937-05-11
Abstract: 495,441. R÷ntgen-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. May 11, 1937, No. 13389. Convention date, May 11, 1936. [Class 39 (i)] In. X-ray apparatus of the kind comprising a rotating anode 3, Fig. 3, and a cathode with a number of alternative linear filaments 28, 33, the anode has a peripherally extending target surface 18 inclined away from the cathode structure and the filaments and their focusing means are arranged side by side in the cathode structure approximately radially to the axis of rotation of the anode, the focusing means being so arranged as to cause the beams to converge to closely adjacent substantially parallel focal lines on the target. Preferably, to ensure parallelism of the focal lines, the filaments are slightly convergent in the direction of the axis of rotation of the anode as shown in Fig. 4. The alternative filaments are of different sizes to produce beams of different intensities. Preferably, provision is made for forming a beam which is of greater intensity on the side first entered by the moving target than on the leaving side. For this purpose, the focusing cup is provided with recesses in which the metal surrounding the recesses is unsymmetrically disposed with respect to the filaments. Alternatively, a symmetrical focusing cup may be used with an unsymmetrically disposed filament or with two unequal filaments disposed on opposite sides of the symmetrical plane of the recesses. The invention is described as applied to apparatus as described in Specifications 495,435 and 495,440. Specification 424,822 also is referred to.
Patent GB-1385612-A (GB)
Title: Process for preparing 7-chloro-2,3-dihydro-1-methyl-5-phenyl-1h- 1,4-benzodiazepine
IPC: C07D243/16
Filed: 1973-03-20
Abstract: 1385612 Benzodiazepine KRKA TOVARNA ZDRAVIL 20 March 1973 [31 March 1972] 13391/73 Heading C2C 7 - Chloro - 1 - methyl - 5 - phenyl - 2,3 - dihydro - 1H - 1,4 - benzodiazepine is prepared by cyclizing 2 - [2 - (chloro or bromo)ethylmethylamino] - 5 - chlorobenzophenone with dinitrosopentamethylenetetramine, and may be converted to the hydrochloride.
Patent GB-598894-A (GB)
Title: Improvements relating to the closing control of electric switches
IPC: H01H83/12
Filed: 1944-07-14
Abstract: 598,894. Protective cut - out systems. BRITISH THOMSON-HOUSTON CO., Ltd. July 14, 1944, No. 13512. Convention date, July 14, 1943. [Class 38(v)] A circuit-breaker, adapted to be closed by an electromotive device, such as a solenoid, energised from a variable-voltage source, has means for ensuring complete closure, whilst preventing slamming, by varying the impedance of its operating circuit in accordance with variations in the source-voltage. The closing solenoid 5, is supplied by a battery 7 through contacts 13 of a delayed opening relay 12 controlled by a switch 18, and through a resistance 19 adapted to be short-circuited by contacts 22 of a relay 20 in parallel with the solenoid 5. If the battery voltage is high, relay 20 picks up, preferably with a delay, and resistance 19 is brought into the closing circuit to prevent slamming of the breaker, whilst at low battery-voltages the relay 20 is inoperative and a sufficient current for successful closing is ensured even under heavy-load conditions. In a modification, the relay 20 is brought into circuit by an auxiliary switch on the breaker when the latter has partly closed, Fig 3 (not shown). The relay 20 may alternatively be seriesconnected in the closing circuit, Fig. 2 (not shown).
Patent GB-271491-A (GB)
Title: Improvements relating to the production of hydrogen from the gases obtained in the production of coke
IPC: C01B3/22
Filed: 1927-05-19
Abstract: 271,491. Battig, R. May 20, 1926, [Convention date]. Carbon ; hydrogen.-The methane obtained by fractionation of the gas mixture liquified on separating hydrogen by low temperature treatment from the gases from coking coal and other carbonaceous materials, is decomposed into carbon and hydrogen by passage over highly heated coke. The methane may be decomposed in an upright generator containing coke heated up to 1000‹ C. or more, preferably 1300-1400‹ C., the gas being passed through from top to bottom or in the reverse manner, or in both directions alternately. Coke ovens may also be used, the heat absorbed in the decomposition cooling the coke, and the carbon produced being deposited on the coke. The gas may be supplied so that it passes evenly through the whole layer of coke, and its amount may be regulated according to the temperature of the coke. The gas obtained may be subjected to compression, cooling and liquifaction to separate the hydrogen from undecomposed methane. Specifications 1842/83, 15071/09, 158,891, and 159,823 are referred to.
Patent GB-593392-A (GB)
Title: Improvements in and in the manufacture of oil control or scraper rings for the pistons or sleeve valves of engines
IPC: F16J9/06
Filed: 1945-05-31
Abstract: 593,392. Piston rings &c. SALES, W. A., and HOBOURN, P. L. May 31, 1945, No. 13637. [Class 122 (i)] An oil control ring comprises a flexible lip or skirt 3, Fig. 3, having in it slits &c. 9 which provide independent flexible parts adapted to contact the cylinder wall &c. at an acute angle. The ring may be of channel or angle section and part of it be dished to cooperate with the piston groove, after the manner of a diaphragm, to direct the resilient segments into contact with the cylinder &c. Oil holes in the ring communicate with oil holes in the piston &c. The ring may be disposed beneath a piston gas ring 12, Fig. 10.
Patent GB-727366-A (GB)
Title: Valves employing sleeve-form closure diaphragms
IPC: F16K15/14
Filed: 1953-05-15
Abstract: 727,366. Elastic valves. VEREINIGTE ARMATUREN-GES. May 15, 1953 [May 16, 1952; July 25, 1952; July 25, 1952], No 13667/53. Class 135. In valves of the kind having a sleeve-like resilient diaphragm arranged to coact with a streamlined core to close an annular passage through the valve, the diaphragm, on its inner and outer surfaces, is formed with staggered longitudinal slits or recesses permitting it to fold bellows-fashion in the circumferential direction to facilitate radial expansion and contraction. The adjacent edges of the slits or recesses are pressed together when the valve is closed. In Fig. 1 the diaphragm c is fixed at one end i and the free end g coacts with a wear-resistant seat ring f on the core e, d to function as a check valve. The longitudinal slits or recesses h may extend to the free end of diaphragm or terminate short of it as shown. The valve shown in Fig. 7 embodies a diaphragm clamped at each end il, i2 and urged towards the core by hydraulic pressure admitted through a port o. Ports p opening to the hollow interor of the downstream part d of the core may remain open when the diaphragm first engages the core but are progressively closed as the pressure admitted through the port o is increased.
Patent GB-1223902-A (GB)
Title: Column for counter-current extraction of liquids
IPC: B01D11/04
Filed: 1968-03-21
Abstract: 1,223,902. Liquid/liquid extraction. KUHNI APPARATEBAU A.G. 21 March, 1968 [23 March, 1967], No 13750/68. Headings B1C and B1F. A column for the counter-current extraction of liquids comprises extraction stages separated from each other by perforated separating plates, and impellers with "non-pitched" impeller blades as defined below, mounted for rotation in a given direction for mixing the liquids, the blades being inclined rearwardly, with respect to the said direction of rotation of each impeller, of a radial line interconnecting the axis of rotation of the impeller and the root of each blade. The blades may be straight or curved between their roots and tips. "Non-pitched" means that the blades extend, between their top and bottom edges, parallel to the axis of rotation of the impeller.
Patent GB-1455080-A (GB)
Title: Drive mechanism
IPC: F16H31/00
Filed: 1974-03-28
Abstract: 1455080 Ratchet mechanism G SCHWARTZMAN 28 March 1974 13764/74 Heading F2Q Axial movement of a contact ring 12, which is prevented from rotating, is translated into rotation of a shaft 30 by a plurality of helical springs 14, 16, 18 integrally attached to the contact ring 12 and to a resilient toothed ring 20, the shaft 30 carrying an arm 32 which becomes engaged by the toothed ring 20 when its diameter becomes reduced and it rotates under the influence of the springs 14, 16, 18.
Patent GB-637995-A (GB)
Title: Method of making flexible hose couplings
IPC: F16L33/207
Filed: 1946-05-07
Abstract: 637,995. Jointing by stamping. MELSOM, W. A., and BOWDEN (ENGINEERS), Ltd. May 7, 1946, No. 13797. [Class 83 (iv)] A method of clamping the end of a flexible hose 1 between the sleeve 3 and insert 2 of an end fitting 4 consists in arranging around the sleeve a shell 7 carrying a number of movable indenting elements 9 and pushing the assembly through a swaging ring 10 which forces the indenting elements inwardly on to the sleeve to indent it on to the hose. The shell 7 consists of two halves drilled with holes 8 to receive indenting balls 9 which may be retained by caulking the edges of the holes. If the end fitting to be passed through the swaging ring has a comparatively large member such as a flange or T-piece, a comparatively thick shell 7 would be needed and the balls could then be replaced by elongated plungers or each hole could have a number of balls, one behind the other. Specifications 553,867, 606,810, 606,873, 637,994 and 638,011, [all in Group XXVIII], are referred to.