baber/WOPTO huggingface dataset:
Patent GB-782999-A (GB)
Title: Improvements in or relating to the production of bacitracin
Inventor: HODDS BRIAN WILLIAM GORDON
Filed: 1955-01-20
Abstract: Bacitracin is recovered from a fermentation broth by adsorbing the bacitracin on to a bacitracin permeable carboxylic acid group containing cation exchange resin in the hydrogen cycle at a pH of 3 to 7 and eluting the bacitracin from the resin.  The preferred pH for adsorption is 3.5 to 5.5, especially 4.5.  The resin is a cross-linked polyacrylic or polymethacrylic resin or a divinyl benzene cross-linked polyacrylic resin, e.g. "Amberlite IRC-50" (Registered Trade Mark) and B.X. (Plastics) ER 130.  The suitability of the resin is determined by test.  The resin may be prewashed with a buffer at the pH at which adsorption is to take place.  The broth may be completely or partially clarified, e.g. adjusting to pH 4.5 and filtering with kieselguhr, prior to adsorption, which may be batch or continuous.  In a preferred method, the broth is passed through two columns containing the resin in series until break through of bacitracin from the first column to the second column takes place, said first column being then taken off stream and the bacitracia eluted therefrom and a third column of resin being placed after said second column. Elution is by means of dilute acid or alkaline solutions which are not such as cause rapid destruction of bacitracia and the pH of which is not within the range 3 to 7. Examples are aqueous ammonia and dilute aqueous strong mineral acid containing a water-miscible organic solvent, e.g. aqueous hydrochloric acid containing acetone.  Bacitracin is recovered from the elutate by (a) solvent extraction with e.g. butanol at pH 7.2, or (b) precipitation as zinc bacitracin.  In the examples, the bacitracin-producing micro-organism is Bacillus subtilis var. licheniformis.
Patent GB-1043822-A (GB)
Title: Improvements relating to inductive signalling systems
IPC: H04B5/00
Filed: 1964-01-15
Abstract: 1,043,822. Inductive signalling; transistor tuned amplifiers. TELEFUNKEN PATENTVERWERTUNGSGESESELLSCHAFT. Jan. 15, 1964 [Jan. 15, 1963], No. 1885/64. Headings H3T and H4U. In an inductive communication system a loop 1, Fig. 1, extends around the service area and is coupled to a receiver 2 and a transmitter 5 which amplify and frequency convert signals f 1  induced in the loop for re-application to the loop as a frequency f 2  to enable two-way communication between portable transmitter receivers 8, 9. The loop 1 is tuned to resonance at the frequency f 1  by a capacitor 7. The portable sets may be provided with selective calling devices and transmit a carrier wave which is frequencymodulated by signals from a microphone which in the receive position operates as a loudspeaker. The receiver 2 may be coupled to the loop 1 through a pre-amplifier 23, Fig. 3 (not shown), the capacitor 7 being replaced by capacitors 20, 21. The potential across resistor 22 is applied via an adjustable resistor 24 to the resonant circuit 1, 20, 21 as regenerative feedback to reduce the damping of the loop.
Patent GB-317288-A (GB)
Title: Improvements relating to the lubrication of non-rotatable parts of machines
IPC: F16N7/22
Filed: 1929-01-19
Abstract: 317,288. Fitzpatrick, H. D., (Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen). Jan. 19, 1929. Lubricant conveyed by mechanical means. -Oil is supplied to a guide or like rod 2, other than a part of a slicing-machine, by a ring 3 carried loosely on the rod and dipping into an oil well caused to slide relatively to the rod and being held in an 8, the ring being oblique position, whereby it is caused to rotate and lift oil from the well to the rod. The ring is located between pins 6a, 6<b> projecting from a bracket 4 secured to a member 1 which reciprocates or oscillates relatively to the rod, the pins being oppositely disposed on one side of the axis of the rod, as shown in Fig. 2, whereby the ring rotates continuously in one direction during the reciprocations. The well 8 may be carried by either the fixed or the moving part. The edge cf the ring may be serrated or formed with flats, or depressions may be formed in the faces, to assist in raising the oil from the well. Specification 311,211 is referred to.
Patent GB-1166313-A (GB)
Title: Process for the Production of Triacetals
IPC: C07D317/18
Filed: 1967-01-13
Abstract: 1,166,313. Preparation of triacetals. CHEMISCHE WERKE HœLS A.G. 13 Jan., 1967 [15 Jan., 1966], No. 1926/67. Heading C2C. Compounds of the general formula where R and R<SP>1</SP> is a hydrogen atom or an unsubstituted or substituted monovalent linear or branched alkyl, aryl, haloalkyl, alkaryl, aralkyl, alkoxyaryl, haloaryl, alkenyl or cycloalkyl radical, R<SP>1</SP> can also be a cyano, chloroalkoxyalkyl, fluoroalkoxyalkyl or cyano - alkoxyalkyl radical, h and l are zero or an integer from 1 to 8 and m is zero or an integer from 1 to 14 but not more than one of h, l and m can be zero at the same time, are prepared by heating a triol of the general formula with an aldehyde of the general formula R<SP>1</SP>CHO in the molar ratio of from 1: 1À5 to 1: 10, or with paraformaldehyde in an equivalent ratio, in the presence of an acid catalyst and with the removal of the water formed in the reaction. Suitably the reaction temperature is between 40‹ and 200‹ and the catalyst is concentrated sulphuric acid. Entrainers such as benzene to remove water and solvents such as petroleum ether or methylene chloride can be used.
Patent GB-865027-A (GB)
Title: Improvements in or relating to the manufacture of inflatable balls
Inventor: EWING RONALD
IPC: B29D22/02
Filed: 1959-01-20
Abstract: 865,027. Footballs. SIMPSON, K. Jan. 15, 1960 [Jan. 20, 1959], No. 2012/59. Class 132(2). In making a football, the inside of the case or the outside of the bladder or both is or are coated with an adhesive which is non- tacky under ordinary ambient conditions, the bladder is inserted and inflated and the adhesive is activated to cause the bladder to stick to the case. If the adhesive is activated by heat, this can be done by using hot air for the inflation or by using cold air and then heating in an oven. Alternatively, the adhesive may be of the pressure-sensitive type and be activated by the pressure of the inflated bladder against the case.
Patent GB-1350556-A (GB)
Title: Pivotally mounted current collecting contact shoe assembly
IPC: B60L5/38
Filed: 1972-01-17
Abstract: 1350556 Current-collecting contact shoes  MERLIN GERIN 17 Jan 1972 [22 Jan 1971] 2065/72 Heading B7L  A current collecting assembly for use with a conductor rail 10 comprises a frame 12 on which are pivotally mounted on axles 32 a series of support arms 22 carrying conductive contact shoes 14, the pivot axles being offset in the direction of travel so that the arms 22 are in imbricated relationship and torsion springs 34 biasing the shoes into contact with the rail so that the shoes have an increased contact surface on wearing as shown in broken lines. The shoes may be copper or a mixture of copper and graphite.
Patent GB-377662-A (GB)
Title: Improvements in and relating to central lubricating installations
IPC: F16N7/38
Filed: 1931-01-22
Abstract: 377,662. Force-feed lubricating. BIJUR, J., 122, East 60th Street, New York, U.S.A. Jan. 22, 1931, No. 2208. Convention date, Jan. 22, 1930. Void [Published under Sect. 91 of the Acts]. [Class 12 (iii).] The oil pump 11 of a motorvehicle engine discharges through a pipe 12 to the engine bearings and also through a pipe 19 to a settling chamber S, whence oil passes to pipes 26, 28 through a filter disc 78 at the upper end thereof. The pipe 26 leads through a restriction R to mains m having branches b with restricted outlets leading to the chassis bearings, while the pipe 28 leads through a restriction R<1> back to the engine sump below the level of oil therein. The restriction R comprises a coiled tube 32, Fig. 5, in the bore of which is arranged a wire 33, the ends 58 of which are pointed so as to prevent clogging due to sudden changes of flow velocity, the coil being arranged adjacent the water jacket J or intake manifold so as to be maintained at a substantially uniform temperature. This restriction R is the dominating factor in the resistance of the chassis distributing system, so that the supply to the chassis bearings is substantially independent of the temperature thereof. The restriction R<1> is similar to the restriction R and is arranged within the crank case. Convection currents within the chamber S are avoided by means of an outer shield 86 spaced from the chamber and by a skirt 82 depending within the top of the chamber. Air in the space around the skirt is vented through holes 81<1> in the skirt: The restricted outlet from each branch b is provided by a drip-plug construction embodying a restriction pin 41, Fig. 4, an inlet strainer 47, and an outlet flap valve 43.
Patent GB-554763-A (GB)
Title: An improvement in or relating to gas burners
IPC: F23D14/00
Filed: 1942-02-19
Abstract: 554,763. Gas burners. CURRIER, G. E., GRIFFFITHS, G., and ANDERSON. R. H. Feb. 19, 1942, No. 2210 [Class 75 (i)] A gas burner for use in bakers' ovens and other industrial heating appliances consists of a metal or other tube a having one end flanged for attachment to the furnace wall and formed with an annular gas supply chamber f shaped to form a throat b, the conical face c on the furnace side being steeper than the opposite face d and being provided with a series of spaced gas ports g. Air supplied to the furnace through the tube a is controlled by a pivoted valve h preferably linked to the gas inlet control valve. The ports g may be fitted with adjustable jets or nozzles which may be shielded by refractory material.
Patent GB-289801-A (GB)
Title: Improvements in or relating to the removal or elimination of fatty acids, resins, and bitter and mucous substances from oils and fats
IPC: C11B3/06
Filed: 1928-01-24
Abstract: 289,801. Wilhelm, K. F. May 2, 1927, [Convention date]. Addition to 226,767. Fats and fatty oils, purifying.-In the purification of fats and oils by means of alcohol or solvent which is miscible with water and dissolves fatty acids resins and bitter mucilaginous substances, but does not readily dissolve neutral fats, with the addition of water and ammonia as described in the parent Specification. there are added a fat-solvent which will not mix with the deacidifying agent, and Glauber salt, whereby the purified oil or fat is readily and completely separated. In an example the fat is heated with a mixture of equal parts of the above ammoniated-aqueous-alcohol with benzine or methylene chloride or trichlofrethylene, about 1 per cent of Glauber salt preferably dissolved in the aqueous alcohol is mixed in, and the whole allowed to stand.
Patent GB-746227-A (GB)
Title: Improvements in automatic guns
IPC: F41A15/14
Filed: 1954-01-26
Abstract: 746,227. Automatic guns. SOC. D'EXPLOITATION DES MATERIELS HISPANO SUIZA. Jan. 26, 1954 [Jan. 28, 1953], No. 2383/54. Class 92 In an automatic gun, an ejector 5, Fig. 2, is slidably mounted in the breech block 1 and is moved forwardly relative to the breech block during recoil by striking with its rear end 6 a weight 7 pivotally mounted in the breech case 2. The arrangement of the parts is such that a substantial pivoting of the weight 7 is produced immediately it is struck by the rear end 6 of the ejector. The weight 7 pivots upwardly out of the path of the breech block and is subsequently returned by the action of a weak spring 9. The ejector 5 is normally urged within the breech block against an abutment 10 by a spring 11. In an alternative embodiment Fig. 3 the ejector 5 comprises a bar slidable in a longitudinal groove in the top of the breech block 1. In this case the head of the ejector 5 constitutes at least a portion of the surface by which the breech block, when it is returned forwardly, strikes the base of a cartridge 12 to be introduced into the cartridge chamber.
Patent GB-246845-A (GB)
Title: Improvements in cinematographic apparatus
IPC: G03B1/22
Filed: 1926-01-27
Abstract: 246,845. Giguet, J. Jan. 31, 1925, [Convention date]. Kinematograph apparatus is provided with a claw feed mechanism, a gate, and a shutter, all of which are adjustable to render the apparatus suitable for use as a camera or as a projector; the claw feed mechanism may be adjustable for film-centring, and an additional gate may be provided to enable the apparatus to be used for printing. Fig. 2 shows the apparatus arranged for projection. The feed mechanism comprises a spring-pressed claw 8 carried by a fork 10 having prongs 9, 11, and rocking about an axis 12. A spring 14, extending between the prong 9 and a hand lever 15 pivoted at 16, keeps the prong 11 in engagement with a rotating cam 17. The cam 17 has profiles 19, 20 such that the claw is caused to descend rapidly to feed the film and to rise more slowly. When the apparatus is to be used as a camera, the lever 15 is turned upwards so as to render the spring 14 inoperative, and the profile 19 then acts alternately on the prongs 9, 11 to cause a slow descent and ascent of the claw 8. The axis 12 is movable in a slot 13 so as to adjust the position of the claw and effect film-centring. The gate comprises members 5, 23, Fig. 9, shaped to provide a centrally recessed passage 21 and edge guides 22. The members 5, 23 have apertures 24, 25 somewhat larger than the image area, and a plate 28 pivoted at 29 has an aperture equal to the image area and is provided with marginal bars 30. The plate 28 is pressed by a spring 31 and is held in the position shown, during projection, by a lever 32 engaging a nose 33 on the plate. When the apparatus is used as a camera, a plate is held in the aperture 25 by a spring, and the lever is turned to allow the spring 31 to press the bars 30 against the film. The film is fed to and from the gate by a sprocket 1, and a second' gate 40 having an aperture 42 is provided for use in printing, the films being then fed directly and continuously to and from the gate 40 by the sprocket 1, and a lamp house being provided above the gate 40. The shutter comprises a blade 34 keyed on a collar 35, and a number of blades 37 rotatable on the collar and capable of being held by a helical spring so as to serve with the blade 34 as a single blade for use in photographing, or to form one or two flicker blades for use in projecting.
Patent GB-782442-A (GB)
Title: Improvements in the manufacture of electric cables
Inventor: BRAZIER LESLIE GIDDENS
IPC: H01B13/00
Filed: 1955-01-27
Abstract: An electric cable is made by continuously applying a covering of an elastomer compound to the core and subjecting the advancing covered core to high energy irradiation to vulcanize the compound.  Suitable compounds are rubber, neoprene, copolymers of butadiene and styrene, synthetic rubbers based on organopolysiloxanes and some organic polysulphide rubbers. Preferably one or more electron accelerators are used as the radiation source, the beam of high-speed electrons having a speed equivalent to not less than 1 Me V.  Alternatively, the radiation may be produced in a nuclear reactor and have an intensity of not less than 1014 thermal reactions/sq. cm./min., or the covering may be treated with X-rays or radiation emitted from radio-active isotopes of an intensity of not less than 1000 Roentgens/min.  The amount of energy needed to produce a useful change in the properties of the compound will generally exceed about 1.8 X 107 rad.  Specification 766,802 is referred to.ALSO:An electric cable is made by continuously applying a covering of an elastomer compound to the core and subjecting the advancing covered core to high energy irradiation to vulcanize the compound. Suitable compounds are rubber, neoprene, copolymers of butadiene and styrene, synthetic rubbers based on organopolysiloxanes and some organic polysulphide rubbers.  Preferably one or more electron accelerators are used as the radiation source, the beam of high speed electrons having a speed equivalent of not less than 1 MeV.  Alternatively, the radiation may be produced in a nuclear reactor and have an intensity of not less than 1014 thermal neutrons/sq. cm./min., or the covering may be treated with X-rays or radiator emitted from radio-active isotopes of an intensity of not less than 1,000 Roentgens/min.  The amount of energy needed to produce a useful change in the properties of the compound will generally exceed about 1-8 x 107 rad.  Specification 766,802 is referred to.
Patent GB-334824-A (GB)
Title: Improvements in and relating to lubricating systems
IPC: F16N25/00
Filed: 1930-01-24
Abstract: 334,824. Blanchard, F. C. Feb. 8, 1929, [Convention date]. Eccentric-actuated pumps; valves, arrangement of. - A two-cylinder lubricating pump 43 mounted in an oil tank 11 draws oil from the tank through a strainer 75 and a port 57 and discharges to a conduit 21 through a port 58, communication between the cylinder ports 56 and the ports 57, 58 being controlled by piston valves 60. The pump pistons 59 and the valves 60 are actuated from a shaft 44, driven from the machine to be lubricated, by eccentrics 62 and 65 respectively. The eccentrics 65 are fixed to the shaft while the eccentrics 62 are mounted loosely thereon and are each provided with a pin 69 having a lost-motion driving connection with a collar 70 secured to the shaft, as shown in Fig. 7, whereby the shaft may be driven in either direction. The tank is provided with a filling opening closed by a spring-pressed swinging cap 12.
Patent GB-216179-A (GB)
Title: Improvements in or relating to collapsible boxes or box lids
IPC: B65D5/22
Filed: 1923-01-27
Abstract: 216,179. Vickers, Ltd., (Mascarenhas & Co., A.). Jan. 27, 1923. Folding boxes made from special blanks. .- A collapsable cardboard or like box or box-lid is formed from a blank shaped as shown in Fig. 1, and is erected into the form shown in Fig. 3 by first folding along lines 5 5, 5<1> 5<1> to form two double walls, next turning extensions D, D<1> inwards to form parts of the ends and then folding flaps C, C<1>, about lines 3, 4 over the extension D, D<1> narrow locking tabs C<2>, B<2> being arranged to be on the bottom, the tabs B<2> engaging over the tabs C<2>. The extensions D, D<1> may be arranged to overlap, or may be cut along the dotted lines or the extension may consist only of the parts D or the parts D<1>. The locking tabs may consist of two short tabs arranged one towards each end of the part B. Thumb notches may be formed by cutting out parts E or by cutting out along the dotted lines.-
Patent GB-665125-A (GB)
Title: Addition substances for rubber
IPC: C08F36/14
Filed: 1949-01-31
Abstract: A resin suitable for admixture with synthetic rubbers and polyvinyl chloride to improve plasticity and ageing properties is obtained by polymerizing, in the presence of an alkaline catalyst, a substituted butadiene of the formula <FORM:0665125/IV (a)/1> where R1 and R2 are alkyl groups.  Alternatively the monomer or liquid partial polymer may be added and resinification effected in situ.
Patent GB-284347-A (GB)
Title: Valves
IPC: F16K15/12
Filed: 1928-01-28
Abstract: 284,347. Chicago Pneumatic Tool Co., (Assignees of Moody, J. C.). Jan. 28, 1927, [Convention date]. Check lift valves; seats; buffers. - In non-return valve units of the spring- loaded plate type for pumps, compressors, &c. comprising a seat 5, a guide keeper 15, and a loading spring 17, the opening movement of the valve is cushioned by buffer means in the form of a concentric heavy coil spring 18 enclosing the loading spring 17 and normally out of contact with the valve, as shown. The spring buffer is frictionally supported within fingers 15e depending from the radial head 15b of the keeper. The valve unit is held yieldingly in place by a heavy spring 13 enclosed by a cover 7 which carries a. central set screw 11 which may also be used to clamp the valve unit in position.
Patent GB-1170893-A (GB)
Title: Casing Constructions for Photographic Cameras.
Inventor: PETERSON DEAN MCCORMACK
IPC: G03B17/02
Filed: 1968-01-18
Abstract: 1,170,893. Camera casings. EASTMAN KODAK CO. Jan. 18, 1968 [Jan. 18, 1967], No.2817/68. Heading G2A. A casing for a camera comprises front and rear sections 31, 32, and the marginal portions 51 round the periphery are sloped inwardly, so that they engage with similarly sloped portions attached to the camera and are supported therefrom. As shown, a pair of rigid support straps 39, 41 extending round the camera itself (11, Fig. 1 not shown) are attached to the camera, as by lugs 43, or screws. Each strap is profiled, as in Fig. 3, to have a central ridge 44 and inwardly sloping adjacent areas 46. The casing sections 31, 32 are drawn or stamped as units, and the peripheral portions slope inward as at 51 to correspond with the sloping portions 46. Thus the casing sections can simply be snapped into position by being pushed on to the straps, and are retained by resilient engagement therewith. The straps and casings have shaped or cut-away portions so as to allow various camera components, such as the winding knob, lens housing, trigger, viewfinder, and flash-cube socket, to be accessible from outside the casing.
Patent GB-285241-A (GB)
Title: Improvements in, or relating to, arrangements of toothed gearwheels and casings therefor
IPC: F16H57/039
Filed: 1927-02-01
Abstract: 285,241. Rose, A. G., and Northern Manufacturing Co., Ltd. Feb. 1, 1927. Toothed gearing. - In gearing with aligned driving and driven shafts 2, 9 a worm 1 on the driving-shaft gears with a worm-wheel 10 on a shaft 11 at right-angles thereto and carrying worms 14, 15 gearing with worm-wheels 16, 17 on two shafts 18, 21, which are parallel with the main shaft and carry spur-wheels 24, 25 gearing with a wheel 8 on the shaft 9. The end of the shaft 2 enters a bearing-recess in the shaft 9. The gearing is arranged within a casing provided with a cover, bosses being provided to receive the bearings of the shafts, and except in the case of the shaft 11 each of the bearings is formed half in the body of the casing and half in the cover. Inspection covers, such as 28, are provided in the casing.
Patent GB-510251-A (GB)
Title: Multiple meter device
IPC: G01R13/00
Filed: 1938-01-29
Abstract: 510,251. Combinations of instruments; indicating-apparatus. METRAWATT AKT.- GES. FABRIK ELEKTRISCHER MESSGERATE. Jan. 29, 1938. No. 2871. Convention date, April 6, 1937. [Class 37] [Also in Group XIX] To economise space, for example, on a switchboard, a plurality of meters are disposed side by side in a single casing in the manner shown in Fig. 1, the pivots 1 of the moving systems of the meters being staggered, and alternate meters inverted, so that the ranges of deflections of the pointers of adjacent meters are coterminous and substantially coplanar. Fig. 3 shows two rows of meters as shown in Fig. 1 arranged in a single casing.
Patent GB-328670-A (GB)
Title: Improvement in dilators
IPC: A61F7/03
Filed: 1929-01-28
Abstract: 328,670. Marks, Sir G. C., (Electro Thermal Co.). Jan. 28, 1929. Heating and cooling appliances; rectal appliances.- Rectal dilators consist of a tubular body 1 having a removable stopper 5 formed with a cup 12 fitted with an adjustable extension 8, heating means comprising a permeable cartridge 11 containing a substance which generates heat on contact with water being also provided. Suitable substances are mixtures of powdered magnesium with cuprous oxide or lead suboxide. and a quantity of sand, fuller's earth or similar substance to render the mixture permeable to the aqueous treating liquid, which may be water or milk. The liquid is contained in the cup 12 the extension 8 of which is graduated so that the capacity of the cup may be varied by screwing the extension further in or out of the stopper 5. The cartridge 11 may be made of muslin or other suitable fabric, the ends being closed with plugs of cotton wool, and is preferably of tapered form as shown. A vent 10 is provided in the base portion 4 of the dilator as shown, or a vent may be formed by a. groove cut across the screw threads 6.