baber/WOPTO huggingface dataset:
Patent GB-817243-A (GB)
Title: Improvements in the production of tetracycline
Filed: 1957-08-26
Abstract: Tetracycline in high yield (i.e. at least 90 per cent of the formed antibiotics) is produced by growing under submerged aerobic conditions a culture of a chlortetracycline producing species of streptomyces especially S. aureofaciens in an aqueous nutrient medium containing a source of nitrogen and carbon and chloride ion, in the presence of a heterocyclic compound consisting of 2-mercapto-4,5-dimethylthiazole, 2,5-dimercapto-1,3, 4-thiadiazole or 2-benzoxazolethiol until substantial antibacterial activity comprising at least 2000 mcg/ml. tetracycline is imparted to the solution.  0.001 to 0.10, and preferably 0.005, per cent of the heterocyclic compound is used in the medium.  Complete suppression of chlortetracycline production is obtained by the addition to the culture medium of 0.003 to 2.0 per cent of a water-soluble non-toxic bromide in addition to the heterocyclic compound but this leads to the formation of bromtetracycline.  The bromide ion may conveniently be added as an alkali metal salt such as sodium or potassium bromide, an alkaline earth metal salt such as calcium bromide, ammonium bromide or hydrobromic acid.  In the examples, the medium contains sucrose, ammonium sulphate, calcium carbonate, cottonseed endosperm flour, dechlorinated corn steep liquor, sodium chloride and zinc sulphate and is inoculated with S. aureofaciens. Specifications 690,381, 744,965, 775,115 and 787,368 are referred to.  Reference has been directed by the Comptroller to Specification 782,125.
Patent GB-255803-A (GB)
Title: Improvements in methods for varnishing leather
IPC: C14C11/00
Filed: 1925-10-27
Abstract: 255,803. Paisseau, J. July 23, 1925, [Convention date]. Preparing for enamelling.-Before varnishing with a cellulose varnish the surface of leather is gelatinized so that it adheres to the nitro-cellulose or cellulose acetate in the varnish. The surface may be gelatinized by an acid, for example formic, lactic, tartaric, or oxalic acid, diluted in a solvent. Alternatively the varnishing is performed in one operation by incorporating acetic acid in the cellulose varnish to which a substance conferring plasticity has been added, for example castor oil or its derivatives. Pearl essence may be added to the varnish.
Patent GB-922713-A (GB)
Title: A method of manufacturing a metallic loop for bolts, for leather bag tuck ties and the like
IPC: E05B65/52
Filed: 1959-08-06
Abstract: 922,713. Making fasteners. S. S. BELA, B. ERMINIA, and M. GUILIO, [trading as A C F A. A. STEINBERG & CO.]. Aug. 6, 1959 [Aug. 8, 1958 ; June 1, 1959], No. 26970/59. Class 83 (2). [Also in Group XXV] A method of manufacturing metallic loops for belts, leather articles and the like comprises blanking out from a metal strip, e.g. of brass, a piece having a longitudinal extension larger than its transverse extension and having a central portion 1 of increased width and longitudinal end portions 4, 5 at least partly of decreased width with respect to the central portion, subjecting said piece to a plurality of bending along lines 6, 7 and 8 perpendicular to said longitudinal extension, lying at least a portion 7<SP>1</SP> of the piece which is substantially parallel to said central portion thereof against a leather article 10, engaging said longitudinal end portions with said leather article, e.g. through slots 9 and bending said longitudinal end portions projecting beyond said leather article on the face thereof opposite to that where the metallic loop is provided. Limbs 2 and 3 provided on the central portion are bent underneath the central portion to improve its stiffness and prevent sharp edges on the loop. In another embodiment for forming a loop for a tuck tie (Fig. 8) the piece has an apertured central portion 1a and pointed longitudinal end portion 11a (Fig. 7). In the embodiment shown in Fig. 10, a metal sheet 1b is provided for assisting in supporting the central-portion on the leather article.
Patent GB-1280926-A (GB)
Title: Improvements in or relating to door closers
IPC: E05F3/12
Filed: 1970-06-04
Abstract: 1280926 Door check EATON GmbH 4 June 1970 [26 June 1969] 27035/70 Heading E2M A door closer, e.g. for a trap or loft door, comprises a piston 6 having a rod 8 hinged to a door closer axle rotatable against a spring and a cylinder 5 pivotally connected inside a housing 1 filled with a damping fluid, e.g. oil, and provided with a throttle through which fluid passes on closing the door, the throttle having an adjustment member operable from outside the housing. As shown, a bore 19 in the cylinder connects with a conically-ended throttle bore 12 in the cylinder pivot pin 4, a throttle bolt 13 having a conical restrictor 13' is axially displaceable in the bore and is threadedly engaged in the adjustment member 14. A pin 15 in the pivot pin 4, engaged in a slot 4', prevents the throttle bolt rotating; the slat 4' permitting oil from the throttle to enter the housing space 1'. The adjustment member may alternatively be a push-button formed off the axis of rotation of the cylinder 5. A non- return valve 6' is provided in the piston 6. The piston rod 8 may be coupled to a closer axle (11') Figs. 2 and 3 (not shown) either by a rocker arm (9) having a cam follower (10) engaging a cam (11) on the axle or by a crank rod.
Patent GB-629449-A (GB)
Title: Apparatus for handling rim-equipped tires
IPC: B60C25/132
Filed: 1947-10-08
Abstract: 629,449. Wheel tyre manipulators. DEHN, S. G. (Branick Manufacturing Co.). Oct. 8, 1947, No. 27066. [Class 144 (i)] An arrangement for handling rim-equipped tyres comprises an L-shaped frame horizontally pivoted at one end to a support base and having horizontally pivoted at its free end portion an expanding spider device to hold the rim, means being provided for adjustably raising or lowering the free end portion about the horizontal base pivot and to adjust the expanding spider device about the free end pivot. As shown, an L-shaped frame 1 comprises a channel-sectioned arm 2 pivoted horizontally at one end to a support base 5 and carrying at its other end an outwardly extending tubular arm 3. A screw-jack arrangement 12, 13 pivoted at its ends to the top of arm 2 and a support base projection 8 respectively and operated manually through a crank arm 28 and bevel gears 31, 37, controls the movement of arm 2 about its pivot to raise or lower the free end portion of arm 3. A shaft 39 rotatable by a hand wheel 42 and carrying a worm gear 46 at its outer end is journalled inside the tubular arm 3. The worm 46 engages a horizontally mounted spur gear 48 fixed to an arm 51 carrying a cylindrical sleeve 52 from which project two fixed rimengaging dogs 53. Secured within the sleeve 52 is a cylinder 53b housing a spring-pressed plunger 61 to which is fixed a rim-engaging dog 59. The three dogs form the expanding spider device. In operation, pressure air controlled by a valve 65 is admitted to the cylinder 53b via an inlet 67, causing the dog 59 to project into engagement with a wheel rim 71, until said wheel rim is firmly engaged by the three dogs 53, 59. By means of the screwjack 12, 13, the rim 71 carrying a tyre 69 may be raised from the ground to a convenient working height and then rotated to any position within a 180 degree arc by means of the hand wheel 42.
Patent GB-207324-A (GB)
Title: Improved electric switch
IPC: H01H19/11
Filed: 1922-10-07
Abstract: 207,324. Whitaker, J. E. J., and Richardson, M. C., (trading as Richardson & Whitaker). Oct. 7, 1922. Switches, quick-action; bases, boxes, and cases. -Switches for use on motor-cycles &c. comprise upper and lower insulating discs 10, 8, a diametrical groove or recess being formed in the lower disc to accommodate a pair of fixed contacts 14, 15 with rear terminal sockets. The upper disc 10 carries in a diametrical groove 19, Fig. 5, a spring-pressed metal bar 20 of half-round section, the disc and bar rotating on a stud 21 screwed into the lower disc 8, a spring 23 being interposed between the flat upper face of the bar 20 and the head of the stud 21. On rotation of the disc 10 in successive quarter-turns the bar 20 snaps into the groove 17 bridging contacts 14, 15 and into a second groove 24 at right angles corresponding to the " off " position. An annular extension of the upper disc fits over the reduced neck portion 9 of the lever disc 8 which may have a central cup-shaped recess 18 in its upper face. The switch may be clamped to a bar by a clip 11, Fig. 1. In a modified two-way form, Figs. 6 and 7, the switch has three positions indicated by a pointer 26 on the scale 27 corresponding to three recesses 17. 24, 28 in the disc 8, two of such recesses 17, 28 carrying contacts 14, 15 and 29, 30, respectively of which contacts 15, 30 may be interconnected by a lead 31.
Patent GB-257445-A (GB)
Title: Anti-vibration device for electric lamps
IPC: F21V15/04
Filed: 1925-10-29
Abstract: 257,445. White, S. D., and Saunders, C. W. Oct. 29, 1925. Mounting electric lamps in lanterns.-An antivibration device for use with electric lamps mounted inside shades comprises slightly resilient radial arms 2 of substantially U- or V-shape arranged to extend downwardly from the lampholder and then upwardly into contact with the shade x. The lead-in tube a, which is connected non-rigidly through the top of the shade x, may be fitted with a spiral spring b carrying a screwthreaded tubular member c for the attachment of the lamp-holder, the arms 2 being fixed to a ring 1 soldered in position. The inner portions of the arms 2 may be attached to a ring 4, the' outer portions being bent to fit shades of different' diameter, or the ring 4 may be dispensed with and an ordinary shade ring may be screwed along' the member c between the lamp-holder and the ring 1 so as to press against the inner portions of the arms 2 to bring the outer portions into contact with the shade.
Patent GB-892747-A (GB)
Title: Improvements relating to electric heating elements
Inventor: HAWORTH ROBERT
IPC: H05B3/16
Filed: 1959-08-10
Abstract: 892,747. Electric heating elements. SANTON Ltd. Nov. 10, 1960 [Aug. 10, 1959], No. 27204/59. Class 39(3) In an electric heating element of type comprising a cylindrical refractory form 6 having a plurality of undercut grooves 7 located in its generators which contain coiled heating resistance wires 9, a refractory disc 11 having a plurality of apertures 12 in'alignment with the grooves 7, has screw-threaded terminal rods 13 passing through it into the grooves 7 where they are connected to free ends of wires 9. In this manner relative movement between the supply terminals and the heating coils, and members 6 and 11, is prevented. Each of a plurality of heating wires preferably extend through two of the grooves 7, Fig. 2, by being divided at their midpoints as shown. The refractory former 6 preferably comprises a number of interlocking sections mounted on a central rod 10 which holds them together.
Patent GB-1502047-A (GB)
Title: Fluid control means in a vehicle having fluid actuated clutch means
IPC: B60W10/18
Filed: 1976-06-30
Abstract: 1502047 Reverse gear control CLARK EQUIPMENT CO 30 June 1976 [30 June 1975] 27256/76 Heading F2D An inching valve 62, controlling apply pressure in hydraulically engaged clutch means such as forward and reverse clutches 22, 24 on a fork-lift truck, is arranged in parallel with a restrictor 60 in the supply conduit 46, and is actuated by the service brake pedal 76 from a first, normal, position, Fig. 3, in which it bypasses the restrictor 60 to provide full pressurization of the selected clutch, to a second position in which the by-pass is blocked and the clutch is supplied solely through the restrictor. The inching valve 62 comprises an innermost flanged regulating spool 130 biased rightwards, for its flange to abut the end of a stationary outer sleeve 108, by a spring 174 reacting against the end of a bore in a control rod 72 actuated by the service brake pedal 76. In the normal position, shown, with the outer sleeve 108 held stationary by a spring 126, pressure fluid passes from the upstream side 64 of the restrictor 60, through a body-port 98, outer sleeve apertures 112, registering groove 144, apertures 146 and bore of the regulator spool 130, and body-port 104 direct to the downstream side 66 of the restrictor, by-passing the latter for full pressure supply through an FNR selector valve 44 to the selected clutch 22 or 24, which have continuous restricted drain to exhuast 40. Depression of the service brake pedal 76 withdraws the control rod 72, against a spring 172, which permits internal pressure to move the regulator spool 130 left, its initial movement blocking the pressure inlet 98, 112, whereby the clutch line is supplied only through the restrictor 60 which produces a rapid reduction in clutch pressure from its normal value (185 p.s.i.) to a value (30 p.s.i.) sufficiently low to permit clutch slip. Further pedal depression causes the end edge 154 of the regulating spool 130 to begin regulating clutch pressure 66 to exhaust at a port 100 under leftward pressure loading and rightward loading by the spring 174, between maximum and minimum values of 30 and 5 p.s.i. respectively depending on the extent of brake pedal depression. A line 84, fed through a cut-off valve 86, provides an independent cooling and lubricating supply to the clutches, the pressure to which increases as the restrictor 60 becomes effective during inching, to increase the flow under that condition.
Patent GB-1002753-A (GB)
Title: Method and apparatus for producing regenerated cellulose film
IPC: B29C48/10
Filed: 1962-07-16
Abstract: 1,002,753. Producing regenerated cellulose films. E. I. DU PONT DE NEMOURS & CO. July 16, 1962 [July 17, 1961], No. 27292/62. Heading B5B. Regenerated cellulose film is produced by extruding an aqueous solution from which cellulose can be regenerated, such as viscose, in the form of a tubular film of substantially uniform wall thickness into a coagulating bath. advancing the tubular film through the bath to provide a gel tubular film in such a manner as to provide at least one longitudinal lane in the film where the wall is thinner than over the remainder of the film, and subsequently regenerating the cellulose. The expanded tubular film may be slit along the or each of the longitudinal lanes, and the resulting flat film may be treated to regenerate the cellulose. The tubular film may be expanded in the coagulating bath. The film may be stretched longitudinally simultaneously with its being expanded and substantially to the same degree. The expansion may be effected by applying fluid pressure within the tubular film and simultaneously imposing restraining pressure over part of the outside surface of the tubular film so as to form the longitudinal lane or lanes of reduced wall thickness. The restraining pressure may be provided by means of one or more moving endless belts that partially surround and contact the film and move in the same direction while contacting the film, the pressure within the film and the location of the belt or belts being arranged to provide the longitudinal lane or lanes at the unconfined portion of the film. A portion of the outside surface of the tubular film may be heated during the expansion of the film so as to provide the longitudinal lane or lanes of reduced wall thickness. The lips of the annular extrusion orifice of the extrusion die are preferably rotatable or oscillatable relatively to one another about the extrusion axis to reduce the effect of irregularities in the shape of the lips of the die.
Patent GB-363627-A (GB)
Title: Improvements in or relating to apparatus for the interconversion of electrical and mechanical energy such as used in sound recording and reproducing apparatus
IPC: H04R9/12
Filed: 1930-09-12
Abstract: 363,627. Sound recording and reproducing apparatus. BLUMLEIN, A. D., 57, Earl's Court Square, London. Sept. 12, 1930, No. 27325. [Class 40 (ii).] The stylus shaft a of a moving-coil phonographic recorder or reproducer is formed with a fork k in which the stylus-arm h is clamped by screws with two pieces of cork, rubber &c. 1, 1 inserted between the arm and the shaft, the clamping screws not touching the stylus-arm. The cork &c. serves to damp oscillations of the stylus shaft and arm in unauthorized modes but has no damping effect on the movement thereof in their authorized mode.
Patent GB-1156223-A (GB)
Title: Improvements relating to Mowers
Inventor: TURNER ANTHONY LEONARD
IPC: A01D34/535
Filed: 1966-06-18
Abstract: 1,156,223. Rotary-flail mowers. TURNER ENG. CO. (COUGHTON) Ltd. 5 Sept., 1967 [18 June, 1966], No. 27334/66. Heading A1F. A pedestrian-controlled flail-mower comprises a frame 10, a motor 11 mounted on the frame and coupled both to the groundwheels 16 and to a flail-cutter shaft assembly (Fig. 3), the latter including a shaft 27 mounting a set of rings 36, each pair of adjacent rings carrying a pivot pin 40, parallel to the shaft, for a pair of flailblades 45, all the flail-blades being arranged along the shaft in a substantially helical formation. The machine has handlebars 13 which carry clutch-levers 15 for the two power-drives and a throttle-control lever 19 for the motor. The flail assembly is mounted within a hood 25 carried by skids 22 at its ends and a castor-wheel 24 in the middle. The rings 36 are oval and each pair is spaced 90 degrees from its neighbours.
Patent GB-465652-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/00
Filed: 1936-04-03
Abstract: 465,652. Golf clubs. EVANS, T. G. April 3, 1936, No. 27357. Divided out of 465,643. [Class 132 (ii)] The shaft socket 1 of a golf club is con. nected to the head 6 by a neck 4 at rightangles to the socket and to the head. The head 6 may be of any known form or of the form described in Specification 465,643.
Patent GB-1272391-A (GB)
Title: Improvements in or relating to metal surfaces
Inventor: TYLKO JOZEF KAZIMIERZ
IPC: B21C47/04
Filed: 1968-06-08
Abstract: 1,272,391. Winding strip; cleaving mandrel. TETRONICS RESEARCH & DEVELOPMENT CO. Ltd. 5 June, 1969 [8 June, 1968], No. 27370/68. Heading B3E. A coiler for a steel strip rolling mill comprises a rotatable mandrel, a source of superatmospheric high current density arc plasma and means for directing gaseous effluents from said source on to the mandrel surface for controlling the coefficient of friction thereof. In an embodiment two plasma sources 1 and 2 are carried on a cradle 3 mounted on a reciprocable arm 4 and effluent is directed on to a rotating mandrel 11 to clean any greasy film from surface areas 9 and 10. The coiler comprises driven runout rollers 13 which feed the strip between pinch rolls 14, 15 and through a guide to the collapsible mandrel 16. Top and bottom wrapper rolls 27 and 19 and guide plates 18 and 20 ensure a smooth coiling of the strip on the mandrel. Plasma jet effluent is directed from guns where indicated at 21, 22 and 23 for 20 or 30 seconds to clean the strip and improve the frictional forces between successive layers of the strip on the mandrel. The plasma generation apparatus produces a jet of circular or elliptical cross-section as disclosed in Specification 1,177,941.
Patent GB-880151-A (GB)
Title: Improvements in or relating to multi-leaf laminated springs
Inventor: PLINT MICHAEL ALEXANDER
IPC: F16F1/20
Filed: 1959-08-12
Abstract: 880,151. Laminated springs. TOLEDO WOODHEAD SPRINGS Ltd. Aug. 4, 1960 [Aug. 12, 1959], No. 27526/59. Class 108(3). In a multi-leaf spring the overhung lengths of each leaf are tapered to such an extent that the stiffness is substantially two-thirds of equal lengths of untapered overhanging portions. In an example the ends X<SP>1</SP>, Fig. 5, may be tapered uniformly between the effective points of contact d<SP>1</SP> to a thickness of f which is approximately 0.56 of the initial thickness e. In another example the thickness is similarly tapered to two-thirds of the initial thickness e and the leaf is also tapered in width at 35, Fig. 11, to two-thirds of the full leaf width 34. A method of testing the stress distribution is described in which the spring is arranged under a press plunger 24, Fig. 9, and has spacers 22 at the ends of the leaves to permit the insertion of strain gauges. 25.
Patent GB-1217936-A (GB)
Title: Water-soluble sulfonamide and tetracycline acid salt compositions
Inventor: FORTENBAUGH ROBERT BERENDT
IPC: C07D277/52
Filed: 1968-06-10
Abstract: 1,217,936. Inorganic acid salts of sulphonamides. AMERICAN CYANAMID CO. 10 June, 1968 [20 July, 1967], No. 27535/68. Heading C2C. [Also in Division A5] Novel, stable, solid crystalline water-soluble hydrochloric and sulphuric acid salts (includes bisulphate, sulphate and disulphate salts) of sulphamethazine, sulphaethoxypyridazine, sulphamethoxypyridazine, sulphamerazine and sulphathiazole are obtained by a process which comprises forming a mixture of the sulphonamide and HCl or H 2 SO 4  dissolved in a polar solvent, heating the mixture until at least some sulphonamide is dissolved and cooling to effect crystallization.
Patent GB-260994-A (GB)
Title: Improvements in steam generators
IPC: F23M5/08
Filed: 1926-11-03
Abstract: 260,994. International Combustion Engineering Corporation, (Assignees of Brunt, J. van). Nov. 3, 1925, [Convention date]. Pulverulent-fuel furnaces.-A watertube boiler fired by pulverized fuel burners comprises upper and lower drums 9, 12 connected bv tubes Fat the rear of the combustion chamber, tube walls A, C. D at the sides, front and top of the combustion chamber, a covering 13 on the top wall, and a framework 19 supporting the side and front walls. The ribbed tubes 14 forming the side walls are connected to upper and lower headers 15, 16 arranged outside the combustion chamber. The headers are connected to the upper and lower drums by tubes 18. 17. The ribbed tubes 7 forming the front wall are connected to upper and lower headers 8, 10. The upper headers are suspended from the framework by rods 20. The tubes forming the roof are supported between the header 8 and the drum 9. Air is supplied to the . combustion chamber from an a.ir-heating casing 25 through openings in the ribs on the tubes forming the front wall. Some of the rear tubes are formed with ribs serving as baffles.
Patent GB-324383-A (GB)
Title: Improvements in or relating to packing cases, boxes and similar containers
IPC: B65D5/465
Filed: 1928-09-27
Abstract: 324,383. Robin, J. T. Sept. 27, 1928. Boxes made by bending sheet material; handles; lids; joints between box bottoms and bodies.-A packing case &c. having a tubular body A and ends B provided with flaps B<1> which co-operate with flaps A<1> at the ends of the body to form a thickened rim, is provided with a carrying handle or strap D. As shown, the handle is constructed of a strip of fabric or webbing having end loops which are inserted in slots E in the thickened rim. and held in position by transverse pieces D<1> inserted through the loops to bear against the outer surfaces of the box body; the pieces D<1> may be bent to fit within the slots E or may be arranged within slots in the upper edges of the flaps B<1>. The ends of the strap may be secured to the inner surface of the end B so as to pass over the exterior of the flaps B<1>.