baber/WOPTO huggingface dataset:
Patent GB-1317271-A (GB)
Title: Method of producing l-glutamic acid by fermentation
IPC: C12P13/14
Filed: 1970-05-27
Abstract: 1317271 L-Glutamic acid by fermentation AJINOMOTO CO Inc and SANRAKU OCEAN CO Ltd 27 May 1970 [27 May 1969] 25369/70 Heading C2C L-Glutamic acid is prepared by culturing an artifically induced mutant strain of a parent strain of the genera Brevibacterium, Corynebacterium or Arthrobacter under aerobic conditions on a fermentation medium containing, as a source of assimilable carbon, an alcohol, a hydrocarbon or a carboxylic acid derivative thereof, a source of assimilable nitrogen, minor growth-promoting nutrients and from 50 to 500 penicillin units per ml. of said medium of a substance having penicillin activity sufficient to inhibit but not prevent the growth of said mutant strain until a substantial amount of L- glutamic acid is accumulated in said medium and recovering said glutamic acid, the parent strain being capable of assimilating said carbon source and producing glutamic acid in the absence of said substance, and the mutant being capable of growth on an agar nutrient medium containing said substance in an amount corresponding to more than 5 penicillin units per milliliter. The mutant strain is preferably Brevibacterium ketoglutamicum (ATCC 21533), Corynebacterium hydrocarboclastus (ATCC 21534), or Arthrobacter paraffinens (ATCC 21535). The substance having penicillin activity is suitably benzylpenicillin, α-phenoxyethylpenicillin, phenoxymethylpenicillin, α-phenoxypropylpenicillin, 5 - methyl - 3 - phenyl - 4 - isoxazolylpenicillin or α-aminobenzylpenicillin, or a sodium, potassium or calcium salt thereof, or a mixture of said penicillin derivatives and salts thereof. The carbon source is suitably a (C 6 - C 20 ) alkane or a (C 5 -C 20 ) mono- or dicarboxylic acid.
Patent GB-205497-A (GB)
Title: Automatic securing device for hinged doors, windows, panels, or the like
IPC: E05C19/02
Filed: 1923-10-11
Abstract: 205,497. LiÞvre, G. P. Oct. 13, 1922, [Convention date]. Catches yielding to pull and pressure multiple fastenings -Cams or fingers are pivoted in the frames of doors, windows, panels, &c., and are rocked by the door, &c., in closing to hold it in the closed position until opening-pressure is applied. As shown in Fig 2, a cam 4 is pivoted in a recess 2 in the frame 1 and normally occupies the position shown in dotted lines under the action of the spring 6. When the door 7 is swung into its closing position in the direction of the arrow F, its end 8 engages the finger 5 of the cam to rock it on its pivot 3 into the position shown by the full lines, the end of the door being shaped to fit the cam. The door is opened by pushing. In the form shown in Fig. 5 a finger 11 is mounted on a pivot 12 on a resilient member 13 in the door frame. The finger is held normally by the spring 6 in the position shown in the dotted lines. On closing the door 7, the end 17 engages the finger 11 and rocks it into the position shown in the full lines when the spring 15 forces it into the recess 16 in the door edge, holding the door till pressure is applied. A number of cams or fingers may be pivoted in the door frame on separate pivots or on a common pivot. The cams or fingers may further be formed as members extending the whole length of the door frame. The pivot 3 of the cam 4 may be resiliently mounted if it is desired to provide the cam with a great degree of eccentricity.
Patent GB-296727-A (GB)
Title: Improvements in and relating to stands and like supports for drawing boards, guns, telescopes and other articles
IPC: A47B27/06
Filed: 1928-09-04
Abstract: 296,727. Mulder, C. A. H. Sept. 6, 1927, [Convention date]. Easel stands.-A support for a drawing-board and other articles comprises adjustable crossed frame members, two or more of which are connected by springs, so that the article supported remains balanced over a range of adjustments. As shown, the support comprises members 1 - - 4 carrying a drawing board 5. The members 1 are connected by pieces 6 - - 9 and a tubular distance-piece 17 is located between the members 3. Springs 10 are mounted between the members 1, 4 and are arranged so that the resultant force passes through the centre of the board 5. The springs may be adjustable or they may be provided with a counterpoise for automatic adjustment. The crossed members 1, 3 have guide slots 14, 15 engaged by a rod 16 pasing through the tubular distance-piece 17. An elbowed locking lever 21 is carried on one end of the rod 16 and a tightener 20 at the other end. The locking-lever is actuated to engage a sideplate 22 by a dead-centre lever 30 which is connected to a spring by a cable 26 over pulleys 23, 24 on the lever 21. A shelf 12 for accessories is arranged to remain horizontal in all positions of the device.
Patent GB-322498-A (GB)
Title: Improvements in web-winding machines
IPC: B65H18/20
Filed: 1928-09-06
Abstract: 322,498. Marks, Sir G. C., (Cameron Machine Co.). Sept. 6, 1928. Winding webs.-In a web-winding machine in which the winding-roll and top pressure roller rise as the material accumulates on the winding roll, means are provided to maintain parallelism of the winding-roll and pressure roller. The web C, Fig. 1, is wound by the winding-drums A, B on to the winding-roll E which is carried by bearings 10 secured to the lower ends of a pair of double faced vertically slidable racks 9. The back faces of the racks engage gears 8 fixed on a cross shaft 7 and the front faces engage pinions 20 on a shaft carried by the bearings of the top pressure roller F so that as the roll E rises, its shaft and that of the roller F remain parallel to themselves. The roll E may be. manually raised when desired by means of a hand-wheel 1. Figs 1 and 2. In a shaft rotatable in a sleeve 2 and carrying a pinion 3 meshing with a gear 4, the shaft of which carries a sprocket 5 connected by a chain to a sprocket 6 on the shaft 7. Independent raising of the pressure roller F can be effected by a second hand-wheel 12 freely mounted on the sleeve 2 and fixed to a sprocket wheel 14 connected by a chain to a sprocket wheel 15 fixed to a gear 16 engaging a gear 17 which drives by a pawl 17a and ratchet wheel 18, a sprocket wheel 19. Round the wheel 19 and round a similar wheel at the other side of the machine pass chains each connected at one end to a slidable weight 21 and at the other end to the bearing of the roll F. Ratchet wheels 11, 13 and co-operating pawls 11<a>, 13<a> prevent backward rotation of the wheels 1, 12.
Patent GB-504555-A (GB)
Title: Apparatus for producing sounds by the displacement of objects
IPC: G10H1/46
Filed: 1937-09-22
Abstract: 504,555. Electrical musical instruments; stringed instruments. DUCOUT, M. S: Sept. 22, 1937, Nos. 25702 and 25703. Convention dates, Sept. 22, 1936, and Feb. 19, 1937. [Class 88 (ii)] Two of the three qualities of sound, viz. pitch, intensity and timbre, are varied in correspondence with the visible movements of an object. Fig. 1 shows means by which the movements in two planes of a dancer affect a radio-electric oscillating valve. A cord 27 passes through a tube 28 to a pulley 24 which also carries a cord 23 whose other end is attached to a spring 26. A horizontal pull by the dancer on the cord 27 actuates magnetic material 21 varying the flux in an inductance coil thus varying pitch or timbre, while movement in a vertical plane causes the tube 28 to pivot about its cranked end and thus to actuate a volume control by a link 30. According to the Specification as open to inspection under Sect. 91, mechanism may be connected to the throttle or control lever of an aeroplane to act on the sound producing apparatus; a dancer may produce capacity effects by movements in two directions ; infrared rays and photo-electric cells may be used ; the pitch of a sonorous instrument may be determined by the variable length of a connection, and intensity by the angle of incidence; in Fig. 7 (Cancelled), the pitch of a vibrating cord B is varied by a slide 19 actuated by a wire 17 against the action of an elastic member 20 ; a compressed air device or an electric vibrator may be moved in front of a harmonium or xylophone ; electromagnets may be energized by plates fitted under the shoes of a dancer; 'pedal-keys controlling the valves of reeds may be mounted on a bellows ; the apparatus controlled by a dancer may be combined with lamps : of different. colours. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 339,225, [Class 88 (ii)].
Patent GB-798035-A (GB)
Title: Gas meters
Inventor: SMITH CHARLES HENRY
IPC: G01F3/22
Filed: 1955-09-08
Abstract: 798,035. Gas meters. SOUTH-EASTERN GAS BOARD. Aug. 30, 1956 [Sept. 8, 1955], No. 25782/55. Class 54. A dry gas meter of the type having at least one flexible diaphragm 16 bounding a measuring chamber of which the external walls of the meter casing 10 also form boundaries is provided with at least one member 29 for supporting the outer portions of the diaphragm when it is in an end position and a number of holes 24 or shallow flutes or grooves are provided in the support member to prevent trapping of gas between it and the diaphragm. As shown, two support members 27 and 29 are provided, one for each end position of the diaphragm and they interfit at 18 to clamp the periphery of the diaphragm in place. The section of the support members is preferably frusto-conical and may be straight or curved.
Patent GB-999238-A (GB)
Title: Strip rolling method and apparatus
IPC: B21B1/36
Filed: 1963-06-28
Abstract: 999,238. Rolling. T. A. FOX. June 28, 1963, No. 25789/63. Heading B3M. [Also in Division G3] In a four-high rolling mill the back-up rolls 13 are driven by main driving motors 15, the working rolls 11 being frictionally driven by the back-up rolls, but if a variation in the thickness of the issuing strip is detected across its width the work rolls are driven by smaller controlling motors at a different speed or in a different direction from normal in order that they are laterally shifted out of the plane of the back-up rolls to correct the variation in thickness. The work rolls 11 may alternatively be positively driven by the main motors, with the controlling motors determining the rotation of the back-up rolls and hence the position of the working rolls. The control of thickness may be manual, the bowing of the work rolls being indicated by a dial, or automatic, using a number of thickness detectors across the width of the strip. The detectors take the form of feeler arms which energize load cells situated immediately above them, the outputs of the load cells controlling the sense or speed of direction of the appropriate rolls. Hydraulic motors or brakes can replace the controlling electric motors.
Patent GB-1287052-A (GB)
Title: Improvements in or relating to electromagnetic relays
Inventor: SCUTT DENNIS CLIFFORD
IPC: H01H51/06
Filed: 1970-05-29
Abstract: 1287052 Electromagnetic relays PYE Ltd 28 April 1971 [29 May 1970] 25943/70 Heading HlN A "low-profile" electromagnetic relay suitable for mounting on a printed circuit board has a substantially rectangular magnetic base-plate 1 provided with a plurality of lead-through insulated sealed in terminals 2-9 and forming part of the magnetic circuit of the relay which includes two cylindrical soft iron cores 30, 31 fixed at one end to the base-plate and extending perpendicularly therefrom and an armature 20 pivotally mounted on a pivot post 21 mounted on the base-plate 1 parallel to the cores and midway between them. The armature has push rods 36, 38 at its ends with insulating sleeves 37, 39 to actuate change over spring contact sets 10-16 and 17-19 which are mounted or terminals 2-4 and 6-8. The armature 20 is biased by a torsion spring 22 with its ends in respective holes 24, 26 in the base 1 and armature 20. The end of the cores 30, 31 remote from the armature are provided with polepieces 34, 35 for co-operation with the ends of the armature and a non-magnetic spring strip mounted on the pole-piece 35 acts as an armature back stop. A pressed metal cover 40 is sealed to the base 1.
Patent GB-652234-A (GB)
Title: Improvements in or relating to fluxes for use in the treatment of light metals
Inventor: EMLEY EDWARD FREDERICK
IPC: C22B9/10
Filed: 1946-08-29
Abstract: A flux, for the treatment of light metals, consists of at least two chlorides of the group consisting of alkali chlorides and alkaline earth chlorides, including magnesium, more than 25 per cent of the chlorides being barium chloride, together with a sufficient proportion of one or more inspissating agents, other than barium fluoride and strontium fluoride, to enable the flux to form a pasty viscous covering on the surface of the molten metal at 750 DEG  C, the flux having a specific gravity of at least 2.2 at 800 DEG C.  The barium chloride may be partly or wholly replaced by strontium chloride reckoning 1 per cent of strontium chloride equivalent to 0.7 per cent of barium chloride.  A modification of the flux contains one or more of the fluorides and chlorides of barium and strontium and includes at least one of these fluorides, the total quantity of these salts being equivalent to more than 20 per cent barium chloride reckoning 1 per cent of barium chloride equivalent to 1.4 per cent of strontium chloride, 0.6 per cent barium fluoride or 1.6 per cent strontium fluoride, the flux containing also magnesium chloride, in amount at least stoichiometrically equivalent to the said fluorides, and one or more of the other chlorides of the alkali and alkaline earth metals and, if desired, one or more additional inspissating agents.  The quantity of the inspissating agents, including the barium and/or strontium fluoride may be 13-43 per cent.  The barium chloride and/or strontium chloride is preferably fused with the other chlorides used before being mixed with the inspissating agents.  The flux may be used in the treatment of magnesium, magnesium base alloys, e.g. those containing zirconium and/or rare earth metals and aluminium base alloys containing magnesium. Specifications 511,137, 539,023, 539,024, 652,224, 652,226, 542,227 and 652,235 are referred to.
Patent GB-260422-A (GB)
Abstract: 260,422. Lake, A. E., and Frost & Co. (1924), Ltd., H. Oct. 28, 1925. Mounting undercarriages; adjusting height -of body; wheels and axles, arrangement of.-In a dismountable carrier for damaged vehicles comprising longitudinal members 10 detachablv connected by tie-bars, the tie-bar at one end is constituted by a wheel carrying shaft 32 carried at each end by toggle-links 30, 31 connected to nuts 28, 29 mounted on a right- and lefthand threaded spindle 24 in a casing 23 carried by a bracket 22 detachably secured to the longitudinal member 10. The tie-bar 12 at the other end carries a single castor-wheel or a pair of such wheels. The toggle-links may be replaced by a screw or worm operated lever device.
Patent GB-808677-A (GB)
Title: Improvements in or relating to pulse translating system
IPC: H03K3/30
Filed: 1956-08-24
Abstract: 808,677. Transistor pulse amplifier circuits. SPERRY RAND CORPORATION. Aug. 24, 1956 [Aug. 24, 1955], No. 26043/56. Class 40 (6). In a pulse amplifier in which input pulses are applied periodically to an input coil of a transformer, the change of flux thus produced is built up regeneratively via a transistor amplifying stage until the core saturates output pulses being derived from the transformer when the rate of change of flux in the core exceeds a predetermined value. The Figure shows a pulse amplifier in which pulses are applied periodically from a source 27 to the input coil 11 of a transformer 10, the core of which preferably has a linear B-H curve. The core is driven only a short distance up the hysteresis loop by the input pulse, but the current flow produced in coil 12 is amplified by the transistor 17 and due to the regenerative effect of coils 13, 12 the core rapidly saturates and four. output signals are produced at lead 21 and across windings 14-16. The biased diodes 24-26 prevent the outputs from loading the system until the regenerative process is substantially advanced and the output pulses thus exceed a predetermined level. The inductor L delays the appearance of an output on its associated lead for a predetermined period. As the B-H loop is linear the circuit is self-restoring. In a modification, Fig. 2 (not shown), the core has a rectangular hysteresis loop and an additional winding is fed with re-setting pulses during the intervals being input pulses to restore the core to its initial unmagnetized state. In a modification, Fig. 4 (not shown), the transistor 17 is gated off, by switching its collector electrode to earth between input pulses thus ensuring that output pulses appear only when input pulses are present. The transistor 17 may be operated with a grounded emitter or collector connection instead of with a grounded base. By varying the circuit constants the relative durations of the input and output pulses may be controlled.
Patent GB-586505-A (GB)
Title: Improvements in textile materials having insecticidal properties
IPC: A01N25/10
Filed: 1944-12-29
Abstract: Textile fibres of an organophilic fibre-forming organic substance have incorporated therein an organic contact insecticide and optionally also an insect-repellent such as dimethyl phthalate.  The textile fibres may be of cellulose ester or ether, e.g. cellulose acetate, propionate, butyrate, acetate - propionate, or acetatebutyrate, or ethyl or benzyl cellulose. Insecticides specified are 1 : 1-di-(p-chlorophenyl)-2 : 2 : 2-trichlorethane, g -benzene hexachloride, derris or pyrethrum extracts, and rotenone.  The insecticide may be incorporated in the spinning solution from which cellulose ester or ether fibres are spun.  According to the Provisional Specification the insect repellent may be used alone and the textile fibres may be of polyamides or polyvinyl compounds, e.g. polymerized vinylidene chloride or co-polymerized vinyl chloride and vinyl acetate.
Patent GB-992303-A (GB)
Title: Improvements relating to bobbins
Inventor: STANSFIELD BRIAN
IPC: B65H75/24
Filed: 1963-07-02
Abstract: 992,303. Bobbins. JERSEY-KAPWOOD Ltd. April 28, 1964 [July 2, 1963], No. 26236/63. Heading B8M. A yarn tube 1, which is made of a strip of non- deformable inherently resilient material-for example stainless steel-so as to be radially compressible, has its edge portions 5, 9 shaped to limit expansion of the tube when an expanding mandrel is inserted therein.
Patent GB-652565-A (GB)
Title: Improvements in orifice caps or stoppers
IPC: B65D41/04
Filed: 1948-10-08
Abstract: 652,565. Stoppers. PENN, B. H. Oct. 8, 1948, No. 26320. [Class 125(iii)] An orifice cap or stopper comprises an outer locking cap of any form described in Specification 178,153, [Class 125(iii)], in combination with an inner cap which has contact with the outer cap at or near the centre to ensure self adjustment of the inner cap to provide an even pressure on a sealing medium placed between the inner cap and the vessel. The inner cap of tinplate, plastic &c. may be dented, swollen, or shaped upwards c or the shape of a segment of a sphere, cone, or piramid with a triangular, square, or multi-sided base, to co-operate with an outlet cap which is flat, as in Fig 1, or provided with a depression, as at e in Fig., 12, or a raised portion, as in Fig. 6, or the inner cap may be flat and the outer cap provided with a depression, as in Fig. 5. The caps may be strengthened by providing a depression d between the rim of the vessel and the swelling c. The inner cap may be retained in the outer cap when removed from the vessel by means of a flange b on the outer cap, see Fig. 12. The sealing medium is of rubber, cardboard, paper, cork &c. and the sealing is improved by shaping the wall of the vessel and the rim of the inner cap, e.g. as in Figs. 22, 17, 20. In one example both inner and outer caps have small conical upward projections, and the inner cap is fluted.
Patent GB-720549-A (GB)
Title: Improvements in and relating to the bonding of sponge rubber to metals
Inventor: GREGORY CHARLES HERBERT
IPC: C08J5/12
Filed: 1951-11-09
Abstract: Articles comprising moulded sponge or cellular rubber bonded to metal are produced by bonding to the metal by means of an iso-cyanate bonding agent prior to the moulding step, a film of unvulcanized rubber, which film is exposed to contact with the rubber being expanded during the moulding process, so that the rubber is expanded and vulcanized and bonded at the moulding stage.  The rubber may be natural rubber, polychloroprene, butadiene-acrylinitrile, or GR-S and the gassing agent may be sodium bicarbonate, ammonium carbonate, p-dinitro benzene, or dinitroso pentamethylene tetramine.  In an example, a metal strip of iron, steel or light metal is sandblasted or degreased with trichloroethylene and then treated with a uniform thin coat of isocyanate bonding agent and then with a coating of a composition consisting of smoked sheet rubber, zinc oxide, stearic acid, soft black and benzene.  The treated part was then baked for 1 hour at 100 DEG C. and then the sponge rubber composition applied and the whole heated at 307 DEG F. for 10 minutes.
Patent GB-633454-A (GB)
Title: Improvements in or relating to yarn-winding machinery
IPC: D01H1/36
Filed: 1947-09-30
Abstract: 633,454. Twisting and winding yarns. BRITISH CELANESE, Ltd. Sept. 30, 1947, No. 26393. Convention date, Oct. 2, 1946. [Class 120 (ii)] A twisting and winding machine for producing yarn packages having a transfer tail comprises a rotatable spindle adapted to carry a yam support, guide means, e.g. a ring and traveller, for guiding the yarn to the support to be twisted and wound thereon, means for imparting to the guide means a chaser motion with a traverse stroke of constant length, means for superimposing on the chaser motion a to-and-fro builder motion of lower frequency than the chaser motion, and means for momentarily extending the length of the downward stroke of the guide means below the combined traverse of the chaser and builder motions, so as to cause the winding of a small amount of yarn on the support at a point spaced from the main body of yarn subsequently wound thereon. Yarn 3 is twisted and spun by a ring and traveller carried by a ring rail 9 biased upwardly by an adjustable weight 72 operating through arms 71, 60, shaft 54 and lifter rods 68. The rail is positively lowered by a traverse cam 18 on a driven shaft 19 which operates to oscillate a lever 22 by a constant amount about a shaft 23. The lever 22, through a follower 27, bears on a cam 26 on another lever 24 also pivoted on the shaft 23, the cam 26 which builds the yarn up and down being rotated by the shaft 23 through gears 33, 34, 35, 38, 39. Attached to the lever 24 is a chain &c. 41 which through drums 46, 47 and chain &c. 50 moves a lever arm 53 to lower, positively, the ring rail 9. Between the lever arms 22, 24 is positioned a pneumatic cylinder and piston, the piston rod 83 bearing against the lever 22 and the cylinder, which is supplied by air pressure through a pipe 80 being attached to the lever 24. At the beginning of the wind, air is admitted to the cylinder 78 which operates to force the arm 24 downwardly below its lowest normal position so that a transfer tail is wound on the support 13. The pneumatic device 78, 83 may be replaced by mechanical or electrical means. The arm 60, through a rod 70, effects the raising and lowering of the pig-tail yarn guides 4 which are set in a bar 5.