baber/WOPTO huggingface dataset:
Patent GB-1386674-A (GB)
Title: Process for the enzymatic production of l-tryptophan
IPC: C12N11/04
Filed: 1972-04-21
Abstract: 1386674 Filaments containing enzymes SNAM PROGETTI SpA 21 April 1972 [23 April 1971] 18743/72 Heading B5B [Also in Divisions B8 C2 and C3] Enzymes encased in filaments are prepared by dispersing the enzyme in a solution of a polymer capable of producing filaments, and wet or dry spinning the dispersion. Suitable polymers are nitrated or esterified cellulose polymers, polyolefins, homopolymers and copolymers of acrylates, methacrylates, vinyl esters, vinyl chloride, vinylidene chloride and styrene, and polyamides. Enzymes for producing L-tryptophan from indole and serine in the presence of the enzyme-containing filament may be obtained from Escherichia coli, Claviceps, Neurospora, Bacillus subtilis or Saccharomyces. In examples, an enzyme derived from E. coli in a phosphate buffer solution or in aqueous glycerol was emulsified in a methylene chloride solution of cellulose triacetate, the emulsion was poured into a spinneret at 0 C., spun under a nitrogen atmosphere and coagulated in toluene to provide a filament which was then dried under vacuum.
Patent GB-1395983-A (GB)
Title: Apparatus for filtering hot ash from flue gases
IPC: B01D46/24
Filed: 1972-04-22
Abstract: 1395983 Filtering ash from flue gases STOCKDALE ENG LTD 24 April 1973 [22 April 1972] 18771/72 Heading B1T An apparatus for filtering hot ash from flue gases has a plurality of cylindrical ceramic filter cartridges in each of a plurality of filter chambers 11, and the cartirdges are cleaned by a reverse flow of compressed air from reservoir 15, down hollow shaft 8 and via rotating elbow pipe 10 to each successive duct 13a leading to the outlet side of its respective filter chamber 11. Normal filtered air flow is up ducts 13a and through rotating chambers 13 and exit parts 6 to duct 7 drawn by a suction fan. The speed of rotation of elbow pipe 10 and chamber 3 across wear plate 4 may be controlled manually or automatically by presure differential and a variable gear. As elbow pipe 10 aligns with each duct 13a, a lug 18 on gear 9 opens a diaphragm valve 10a to pass a blast of air from reservoir 15 into shaft 8 and pipe 10. Dust is removed into hopper 16 (Fig 4, not shown).
Patent GB-409927-A (GB)
Title: Electric boiling plates
IPC: H05B3/68
Filed: 1933-07-03
Abstract: 409,927. Electric hot-plates. HADDAN, R., 31, Bedford Street, Strand, London.- (Moffats, Ltd. ; Dennison Avenue, Weston, York, Ontario, Canada.) July 3, 1933, No. 18834. [Class 39 (iii).] A boiling plate comprises a top plate 2 provided with a plurality of slits 2d extending from the edge for some distance to permit expansion without buckling, and a porcelain support grooved to contain the heating resistance, the groove being positioned at opposite sides of the slits and extending around the ends of the slits beneath an unslitted portion of the top plate. The central circular plate 1 has an outwardly directed flange 1<a> formed with lips 1<b> resting on an inwardly directed and downwardly joggled flange 2h on the outer annular plate 2. The underside of the plate 1 is ribbed spirally to locate the porcelain blocks 5. The underside of the plate 2 is provided with a rib 2<g> thickened at 2f, and ribs 2d which engage recesses 6f in the porcelain blocks 6. The blocks 5, 6 rest on a refractory base mounted in a metal pan. The various parts are all secured together by studs 9 mounted in lugs 1<d> in the plate 1.
Patent GB-787682-A (GB)
Title: Improvements in or relating to brushes
Inventor: FRANSEN BERNARD FRANCIS
IPC: A46B11/00
Filed: 1955-06-29
Abstract: 787,682. Reservoir brushes. FRANSEN, Ltd., J. A. June 29, 1955, No. 18861/55. Class 19. A barbers neck brush comprises a resilient hollow handle 1 made for example of a plastic material or rubber and containing powder which by squeezing the handle may be expelled into the bristles. A fine gauze disc may be provided at the outlet of the handle to control the flow of powder and a closable opening may be provided at the opposite end so that the handle may be refilled.
Patent GB-154146-A (GB)
Title: Improvements in and relating to locomotive draught appliances
IPC: F23L17/16
Filed: 1920-07-06
Abstract: 154,146. Ferguson, Von G. July 6, 1920. Spark-arresters.-A combined blast apparatus and spark arrester for locomotives consists of a pipe 1 (Fig. 6) connected to the exhaust nozzle D and discharging into the smoke stack C, this pipe being enclosed in a perforated casing 8 and having a vertically adjustable damper ring 5, which is secured, as shown in Fig. 6, by fasteners passing through selected openings 4 in the flanges 3. A door 9 provides access to the interior of the casing, and a pipe 11 leading from a tank supplies compressed) air to induce a draught when the fire is first lighted.
Patent GB-530711-A (GB)
Title: Improvements in vehicle axles
IPC: B60B35/02
Filed: 1939-06-29
Abstract: 530,711. Vehicle wheel-axles. BROCKHOUSE & CO., Ltd., J., and DEAR, A. T. C. June 29, 1939, No. 18920. I[Class 108 (ii)] In vehicle axles, particularly axles for the carriages of light ordnance, a stub axle for a road wheel is detachably associated with each end of the main axle by means, such as a helical or cam engagement, whereby the stub axle is drawn axially in relation to the end of the main axle and tightened, which means can be released by a part-turn of the stub axle or a member associated therewith. A co-axial sleeve 11 is welded into the end of the hollow main axle 10 and is interiorly formed with a coned seating 16 at its outer end leading to a part 17 having an interrupted female thread 18, and also with cylindrical parts 19, 20 separated by a tapering part 21. The stub axle 22 is formed with corresponding parts as far as a coned shoulder 23 which contacts with the seating 16, an interrupted male thread 24 on the stub axle engaging with the sleeve thread 18. The part 28 of the stub axle external to the sleeve carries ball bearings 29 for the hub of a wheel 31 and is formed with a part 32 of non-circular section, such as hexagonal, on which an operating lever 33 is mounted. The latter may be weighted so as to tend to tighten the screw engagement. To ensure correct engagement of the axles before the lever 33 can be moved, an extension of the sleeve is provided with a circumferential groove 47 receiving a lug 46 on the lever which is only rotatable in this position the lug being offered up to a longitudinal grove in the sleeve extension communicating with the groove 47. The stub axle may be locked in position by a spring-urged tapering cotter 36, Fig. 5, bearing tangentially on the part 25 of the stub axle, the cotter being slidably mounted in a lug 38 integral with the sleeve. The helical engagement may be replaced by other co-acting means as for example by cam surfaces on the inner surface of the sleeve and on a pair of oppositely disposed lugs on the stub axle respectively, the lugs passing through slots in an inwardly projecting flange on the sleeve before being partly rotated to tighten against the cam surfaces.
Patent GB-651811-A (GB)
Title: Improvements relating to electric burglar alarm systems
Inventor: MOXLEY LEONARD JAMES
IPC: G08B13/22
Filed: 1948-07-14
Abstract: 651,811. Electrically tripped switches. RELY-A-BELL BURGLAR. & FIRE ALARM CO., Ltd. July 14, 1948, No. 18958. [Class 38(v)] [Also in Group XXXVIII] In a burglar alarm system (see Group XXXVIII) a relay 7, once operated, is held by battery 24 over a circuit including normally closed alarm contacts 23. If this circuit is broken relay 7 releases and sounds an alarm by means of its contacts 13, 14; but restoration of the circuit does not restore the conditions since battery 24 is insufficient to operate relay 7. To reset the system an alarm contact 23 is left open and relay 2 is momentarily energized from battery 18. The tongue 3 on its armature locks under a lip 5 on the armature of relay 7 and holds relay 2 in the operated condition, wherein its changeover contacts insert battery 18 in series with battery 24. On completing the alarm circuit (as on leaving the premises) relay 7 is then operated, releasing the lock on the armature of relay 2 whose contacts thereby set the circuit of relay 7 in the original " ready " condition. Specification 408,239, [Group XXXVIII], is referred to.
Patent GB-1305254-A (GB)
IPC: B60J5/06
Filed: 1967-12-18
Abstract: 1305254 Vehicle doors R BERTOLINI 15 April 1970 [24 July 1969] 18046/70 Heading B7B [Also in Division E1] In a sliding door arrangement on a motor van or trailer, two sliding panels 2, 3 for closing a loading opening are suspended from respective inner and outer tracks 6, 9 arranged along the upper edge of the opening and are located when closed within the thickness of the wall 7 of the van or trailer body 1. The inner track 6 is secured to the upper edge of the opening, and the outer track 9 is hinged at 10 to a longitudinal strip 11 which is pivotally connected to the wall 7 by a flexible strip 12 so that it can be rotated outwardly to move the track 9 upwards and outwards and position the panel 3 outside the panel 2. The tracks 6, 9 are formed by oppositely-disposed similar sections and track rollers 5 are oppositely connected to plates 4 on the panels 2, 3 so that the closed panels are aligned with one another and are flush with the outer surface of the wall 7. A longitudinal strip 17 connected along the lower edge of the opening by a hinge 9 clamps the closed panels 2, 3 against the edge of the loading floor 19. Pivoting of the strips 11, 17 is effected by means of a hand lever 14 connected to the strip 11 through a linkage 13, 15.
Patent GB-949958-A (GB)
Title: Purified ferrimycin and process for obtaining same
IPC: A61K31/445
Filed: 1960-05-30
Abstract: Crude ferrimycin, which may be obtained as described in Specification 893,880 or 912,339, may be purified by electrophoresis and/or countercurrent distribution with the use of benzyl alcohol, whereby the active substance is converted into two components ferrimycin A and ferrimycin B. Ferrimycin A may be further separated into components A1 and A2 by distribution chromatography, particularly on cellulose.  Ferrimycin A dihydrochloride has the analytical composition C=48.65%, H=7.09%, N=12.95%, Fe=4.56%, Cl=6.10%, C(CH3)=1.99%, an equivalent weight of 1106 and maxima in the ultra-violet spectrum at 228 mm , 319 mm  and 425 mm .  Ferrimycin A1 dihydrochloride has the analytical composition C=47.63%, H=6.72%, Fe=4.88%, N=12.64%, Cl=6.40%, an equivalent weight of 1078 and maxima in the ultra-violet spectrum at 229 mm , 319 mm  and 425 mm . Ferrimycin A2 dihydrochloride has the analytical composition C=48.78%, H=6.77%, Fe=5.29%, N=12.75%, Cl=6.23%, an equivalent weight of 984 and maxima in the ultra-violet spectrum at 227 mm , 319 mm and 425 mm .
Patent GB-380038-A (GB)
Title: Apparatus for discharging the distillation products from chamber ovens
IPC: C10B27/00
Filed: 1932-07-07
Abstract: 380,038. Covers for resisting fluid pressure. STILL, C., Recklinghausen, Westphalia, Germany. July 7, 1932, No. 19218. Convention date, July 10, 1931. [Class 123 (i).] A gas-collecting box 2, in the roof of a coke oven, is.closed by a flat cover 20 having a sharp edged sealing ring 22 backed by a resilient packing such as asbestos. The cover is held at one end by a bolt 27 and spring 26, and at the other by a raised inclined surface 31 on the cover which is wedged under a claw 30, a lug 32 being provided to assist this action.
Patent GB-726381-A (GB)
Title: Improvements relating to brake linings
IPC: F16D65/08
Filed: 1953-07-10
Abstract: 726,381. Brake linings. DAIMLER-BENZ AKT.-GES. July 10, 1953 [July 10, 1952], No. 19237/53. Class 103 (1) To avoid sudden locking of the brakes of a motor vehicle, the brake lining has sections R, at each end of the brake shoe B of a lower coefficient of friction than an intermediate section R 2 , characterized by the total length of the two end sections R 1 , amounting to about one-third of the total length of the lining. The sections R, at opposite ends of the shoe may have different coefficients of friction from each other and the lining is effective for both directions of relative rotation V, and V 2  between the shoe and the brake drum.
Patent GB-498846-A (GB)
Title: Improvements in and relating to valves
IPC: F16K17/196
Filed: 1938-06-29
Abstract: 498,846. Relief valves. KENNEWEG, C. H. June 29, 1938, No. 19324. [Class 135] A combined pressure and vacuum relief valve for the fuel tanks of motor vehicles comprises a cylindrical housing 1 formed with a ported nipple 2 at its closed end and with an annular shoulder 20 to accommodate an apertured closure disc 4 at its other end, and a piston 6 slidable within the housing, one end of which forms the pressure relief valve and the other end of which is formed internally with an annular seat 15 for a flat valve 16 which acts as the vacuum relief valve, both valves being urged to their seats by springs. The loading spring 9 of the pressure relief valve bears on an enlarged portion 7 of the piston 6 which is formed with vertical grooves 18. The valve disc 16 which is loaded by a spring 17 has peripheral notches 21. The end of the piston 6 opposite the seat 15 is closed by a plate 13 with a central opening 14. The complete device may be secured by the nipple 2 to the cap C of the filling spout B as shown or directly to the fuel tank A above the normal high-level therein. In the latter case, the piston 6 is reversed within the housing 1 and the seating gasket 10 lies adjacent the nipple 2 instead of near the shoulder 20.
Patent GB-332708-A (GB)
Title: Improved construction of portable machine for spraying on road and like surfaces
IPC: E01C19/17
Filed: 1929-06-24
Abstract: 332,708. Pownall, P. E., and Phoenix Engineering Co., Ltd. June 24, 1929. Direct air-pressure apparatus, non-automatic. - Relates to apparatus for spraying cold emulsions &c. on to roads &c. consisting of a wheeled vehicle A, Fig. 1, carrying a chamber B which contains the liquid to be sprayed and is connected by a valve-controlled pipe D with a chamber C which receives a supply of air from a hand or power actuated pump J. According to the invention the chamber B is adapted to be charged with emulsion &c. under pressure of air in the second vessel C from a barrel Y, Fig. 4, which is fitted with a spigot connected by piping V, b with valved outlets H, I in the upper parts of the vessels B, C. The spigot is hollow and T-shaped as shown in Fig. 2, and is arranged with a part W in the bunghole of the barrel Y, a part U connected with the pipe V, and a part Z attached to a pipe a which is connected to the pipe b and passes through the spigot into the barrel. The spigot is secured to the barrel by a chain or rope d. A valve Q, Fig. 1, at the lower part of the chamber B is arranged to permit the flow of liquid under pressure from a pipe P to the spraying nozzles.
Patent GB-127061-A (GB)
Title: Improvements in and relating to Grinding and other Machines having Magnetic Work-holders.
Inventor: ARTER WILLIAM
IPC: B23Q3/154
Filed: 1917-12-31
Abstract: 127,061. Arter, W. Dec. 31, 1917. Chucks, removing work from a n d cleaning; magnetic chucks. -In a grinding or other machine in which the work is supported by a magnetic chuck or holder that is energized during the operation of the grinding wheel or tool on the work so as to hold the work in place and is de-energized automatically when the operation is completed, means are provided that operate automatically while the chuck is de-energized to remove the work therefrom, or to clean the working surface of the chuck, or to perform both operations. In the machine shown, the grinding-wheel 4, carried on a reciprocating support 3, is moved to and fro over the work carried by a rotary chuck 5, across the surface of which an arm 50 is adapted to sweep. The arm may be faced with a pad of cleaning-material and is mounted on a vertical spindle rocked, through a pinion 60, toothed segment 61, and linkage 66, 67, by an adjustable dog 69 on the reciprocating support 3 as this approaches the right-hand end of its travel, the return stroke being effected by a spring 70. The driving-mechanism for moving the support 3 to and fro may comprise a reversing-gear as described in Specification 16213/15; the vertical shaft 18 of this mechanism is geared to a shaft 21. on which are mounted a hand-wheel 22, whereby the support may be moved to and fro by hand, and an angularly adjustable cam 45 for actuating a reversing-switch in the supply circuit of the magnetic chuck, so that the switch is operated at predetermined points in the movement of the support. The reversing-switch consists of a pair of bent metal arms 27, 28 provided with contacts at their ends, secured in a block 25 of insulating- material that is mounted to rock on a fixed stud 26, and two pairs of metal contact-arms secured upon blocks 35, 39 of insulating-material fixed to the frame of the machine. The arms 27, 28 are rocked against the action of a spring by the cam 45. In one position, the cam moves the arm to complete the circuit through the contacts on the left-hand side of the apparatus to energize the magnet; further rotation of the cam brings the arms into a neutral position, and the circuit is then broken and the magnet de-energized; still further rotation completes momentarily the circuit through the right-hand set of contacts to send a current through the magnet coil in the reverse direction for the purpose of neutralizing the residual magnetism of the chuck.
Patent GB-713089-A (GB)
Title: Improvements in or relating to stator blades for gas turbines and compressors and methods for their manufacture
IPC: F01D5/30
Filed: 1951-08-17
Abstract: 713,089. Coating with metals. HOWLETT, J. W., DEW, S. B., and WELLWORTHY PISTON RINGS, Ltd. Aug. 15, 1952 (Aug 17, 1951], No. 19427/51. Class 82 (2) [Also in Groups XXII and XXVI] In a method of making a composite stator blade for a gas turbine or compressor, a blade is embedded at the root end in a footing of aluminium or aluminium alloy by providing on it an inner coating of an alloy of aluminium and the metal of the blade and an outer coating of aluminium and then casting the footing metal around it. The root 10' of the blade 10 is immersed in a bath of molten aluminium until it reaches the temperature at which alloying action takes place between the aluminium and the metal of the blade. whereupon it is removed and quenched to below the said alloying temperature. This provides a composite coating 12, an inner coating of the alloy and an outer coating of aluminium. The root 10' is then heated until the outer aluminium coating is plastic placed in a mould, preferably projecting upwardly through the bottom of the mould and the aluminium or aluminium alloy is cast around it. Specifications 599,684 and 606,330 are referred to.
Patent GB-257084-A (GB)
Title: Improved method of enriching ore containing limestone
IPC: C01F11/18
Filed: 1925-07-31
Abstract: 257,084. Bashiloff, I. July, 31, 1925. Drawings to Specification. Treating ores to remove undesired constituents.-Polymetallic ores containing lime are first ground or calcined, and then treated with an ammonium salt such as the chloride; the resulting calcium salt is treated with the ammonia liberated and with carbon dioxide, which may be that liberated in the reaction with the ammonium salt or that obtained in calcining the ore, to recover the ammonium salt and precipitate calcium carbonate. Ammonia and carbon dioxide not taken up by the calcium chloride solution may be passed into cold water and the ammonium carbonate solution passed back to the calcium chloride solution. Copper present may pass into solution in the form of an ammonium compound.
Patent GB-672522-A (GB)
Title: Rotary pumps
IPC: F04C5/00
Filed: 1950-08-04
Abstract: 672,522. Rotary pumps. MAYUS, E., and SEE, W. G. Aug. 4,1950 [Aug. 19, 1949], No. 19578/50. Class 110(ii) The pump has a central rotor 17 provided with flexible vanes 25, two or more inlets 4, 5; two or more outlets 6, 7 and convex abutments 26, 27 arranged as shown. Manifolds connect up the inlets to a common entry port, and the outlets are similarly arranged. For replacement purposes, an abutment may be removed 'by lateral sliding. The pump body may be constructed of such materials as lead, stainless steel and "Monel" metal (Registered Trade Mark), and the rotor and vanes of neoprene or rubber. Cast-iron and natural rubber, respectively, may be used. The rotor may be driven by an electric motor or a pulley. Diagonal bars may be used to form a grid .across each port, to guide the vane tips.
Patent GB-1348557-A (GB)
Title: Wide beam forward construction for icebreaking tankers
IPC: B63B35/08
Filed: 1971-06-09
Abstract: 1348557 Icebreaking tanker ESSO RESEARCH & ENG CO 9 June 1971 [22 June 1970] 19677/71 Heading B7A  An icebreaking tanker 11 has an icebreaking bow of symmetrical shape and the ice load waterline includes the maximum beam of the tanker within the forward two-fifths of the tanker's length. The maximum beam also comprises a pair of similar blisters 12, 12<SP>1</SP> symmetrical about the tanker's centreline for facilitating the icebreaking capability and manoeuvrability of the tanker in ice.
Patent GB-660009-A (GB)
Title: Improvements in or relating to wheels for vehicles
IPC: B60B17/02
Filed: 1948-07-23
Abstract: 660,009. Vehicle wheels. BIRMINGHAM SMALL ARMS CO., Ltd., and FLETCHER, J. July 23, 1949 [July 23, 1948], No. 19688/48. Classes 144 (i) and 144 (ii). Relates to wheels particularly for use on devices such as mobile power units for moving rail vehicles, but adaptable for use on ordinary roads. The tyre, shown as a solid rubber tyre 10 vulcanized to the wheelrim 8 is formed with dual flanges 13 which are spaced by a convexsection tread-surface 11 and have cam-shaped edges 14 to avoid wedging between rail-points. The flanges 13 and tread 11 may be provided with transverse grooves 16, 12 respectively.
Patent GB-241333-A (GB)
Title: Axe for slaughtering animals
IPC: A22B3/02
Filed: 1924-08-20
Abstract: 241,333. Turton, W. Aug. 20, 1924. Slaughtering.-A pole-axe is provided with a punch at its end which is bored out to receive an extractor rod which ejects the skull wads. As shown in Fig. 2, the head a of the axe is secured to a handle g by a rivet f and is bored throughout to receive an extractor rod c which is pressed forward to eject the wads by a spring d positioned between a collar c<2>, on the rod c, and a screwed plug e. In a modification, the spring d is dispensed with and the wads are ejected by a blow on the end c', of the rod c, which projects beyond the face a<4>.
Patent GB-993048-A (GB)
Title: Improvements in or relating to drum type electric sequence switches
IPC: H01H19/62
Filed: 1961-06-01
Abstract: 993,048. Interrupters. E. K. COLE Ltd., and A. R. KNIPE. May 31, 1962 [June 1, 1961], No. 19744/61. Heading H2B. A rotatable drum a has holes e, near its periphery and extending parallel to its longitudinal axis, into which holes are slid the curved-over ends of cam elements d having extensions f projecting radially from longitudinal slots in the drum surface so as to operate switch actuating members c, when the drum is rotated, e.g. by a synchronous motor, in a sequence predetermined by the location of the elements d around the drum. The projecting ends of the spring steel cam elements d may be bent over at right-angles to prolong their period of engagement with the actuating members c (Fig. 3, not shown).