baber/WOPTO huggingface dataset:
Patent GB-762702-A (GB)
Title: Improvements in or relating to the production of erythromycin
Filed: 1954-06-01
Abstract: Erythromycin is produced in increased yield by growing an erythromycin-producing-microorganism especially a suitable strain of Streptomyces erythreus in a culture medium containing an ester of a long-chain fatty acid having at least 12 carbon atoms in an amount of at least 0.25 per cent by volume of the nutrient medium. The ester may be added prior to inoculation with the micro-organism or intermittently during the fermentation.  The ester may be a triglyceride, e.g. glyceryl trioleate, or a naturally occurring animal or vegetable fat or oil, e.g. lard oil, corn oil, soybean oil, cottonseed oil, sesame oil, olive oil, coconut oil and margarine oil. It is preferred to add 0.25 to 6.0 per cent ester based on the volume of the culture medium.  The methods of cultivation and the composition of the culture medium are according to those disclosed in Specification 708,159.
Patent GB-113106-A (GB)
Title: Improvements relating to the Treatment of Liquids with Gases.
Inventor: WALLACE CHARLES FREDERICK
IPC: C02F1/76
Filed: 1916-11-14
Abstract: 113,106. Wallace, C. F., and Tiernan, M. F. Nov. 14, 1916. Fluid-actuated valves; lift valves.-In treating liquids with gases, and particularly in purifying water with chlorine, the rate of flow of the gas into the liquid is controlled by maintaining automatically a constant drop in its pressure across an adjustable resistance independently of variations in the static pressure. Gas is fed from cylinders through a pipe 13, a meter 23 as described in Specification 113,197, and a pipe 35, and passes a control valve 15 across which a constant drop in pressure is maintained automatically by a device 14, Figs. 1 and 4. This comprises a casing divided into two chambers 18, 21 by a diaphragm 19 acted upon by a spring 22 which determines a drop in pressure. The chambers 18, 21 are connected to a pipe 13 upon opposite sides of the valve 15 by a valve 17 and a pipe 16 respectively, the valve 17 being controlled by the diaphragm 19 and the spring 22. The adjustable resistance is provided by a needle valve 50, Fig. 6, having a screw-threaded engagement in an operating. sleeve 57 which, by a screw thread of opposite hand, engages in a gland nut 55. Thus when the sleeve 57 is turned a fine differential adjustment of the valve is obtained.
Patent GB-286138-A (GB)
Title: Improvements in or relating to search lights
IPC: F21V14/04
Filed: 1927-06-20
Abstract: 286,138. Siemens - Schuckertwerke Ges., and Krell, O. June 20, 1927. Search-lights, directing. - A search-light 1 is carried by two pairs of runners 2, connected together by crescent-shaped intermediate parts 3 so that it can be given any desired elevation within an angle of, at least, 180‹. The runners are mounted on rollers 5 carried by transverse runners 6, which are movable on rollers 7 for adjusting the lateral inclination of the plane of elevation. The rollers 7 are mounted on a turntable 8. The parts 3 are hinged to the runners 2 so that they can be moved aside to enable the reflector to be removed and are held in the operative position by means of detachable distance pieces. The runners 2, 3 are operated by rotating the rollers 5 by means of rods 12, 13 connected with a hand-wheel 15 on a folding support 14, and the transverse runners 6 by varying the length of a rod 11 as by means of a toothed wheel gearing connected with a hand-wheel 16. The rods 12, 13 may be adjustable in length.
Patent GB-1426448-A (GB)
Title: Process for preparing chloramphenicol analogues
IPC: C12P13/02
Filed: 1973-04-05
Abstract: 1426448 Preparing chloramphenicol analogues KYOWA HAKKO KOGYO CO Ltd 5 April 1973 [5 April 1972] 16360/73 Heading C2C The following chloramphenicol analogues: (i) D - threo - 2 - amino - 1 - p - nitrophenyl- 1,3 - propanediol, (ii) the N-acetyl, N-propionyl and N-isobutyryl derivatives of (1), and (iii) the mono- and di-acetyl esters of the compounds (ii), are prepared by aerobically cultivating a bacterium of the genus Corynebacterium or Nocardia capable of producing said analogues in a nutrient medium containing a source of assimilable carbon and nitrogen and recovering one or more of said analogues from the culture medium, the bacterium being a mutant strain of Corynebacterium or Nocardia which is capable of growing in the presence of at least 50 Ág./ml. of any of chloramphenicol, or D- threo - 2 - amino - 1 - p - nitrophenyl - 1,3 - propanediol or its N-acetyl, N-propionyl or N-isobutyryl derivative. The mutant strains used in the examples are Corynebacterium hydrocarboclastus ATCC 21923 and 21784 (mutants of Corynebacterium hydrocarboclastus ATCC 21628), and Nocardia paraffinica ATCC 21788 and 21924 (mutants of Nocardia paraffinica ATCC 21198).
Patent GB-557479-A (GB)
Title: Improvement in clutch control mechanism
IPC: F02D29/00
Filed: 1941-12-18
Abstract: 557,479. Clutch control mechanism. BENDIXWESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Dec. 18, 1941, No. 16361. Convention date, Dec. 18, 1940. [Class 135] [Also in Group XXVI] In control mechanism for an automobile, an element 31, operating a valve 23 controlling the supply of fluid pressure to a clutch-actuating fluid motor 6, is connected to a speed responsive mechanism 10, an accelerator pedal 48, and the engine throttle valve 44, so that (i) both the speed responsive mechanism 10 and the accelerator can control the valve member 23 and (ii) the speed responsive mechanism 10 can control the engine speed. As shown, the valve member 23, which is under the action of a spring 26, has a portion 24 coacting with a fixed seating 21 between compartments 18, 19, and a portion 25 coacting with a seating 33 on the end of the element 31. Seating 33 leads to the atmosphere via ducts 32, 35. The fluid motor 6, pressure fluid reservoir 8, and compartment 19 are connected to a valve 16 of a gear-shift mechanism of the type described in Specification 485,101, the reservoir 8 being also connected to the chamber 18. A lever 50 is pivoted at 51 to the element 31 and its ends co-operate with stops 54, 55, 56, and are connected to the accelerator pedal 48 and to the throttle valve 44. The element 31 is urged to the right by a spring 36 in opposition to the centrifugal effort of weights 39 carried by a member 40 driven from the engine 11 substantially as shown in Specification 520,596. When the engine is stationary or idling, the parts are in the position shown, pressure fluid from the reservoir 8 being led'through the parts 27, 18, 19, 29, 30 to the motor 6 to hold the clutch connected to the link 5, disengaged. Depression of the accelerator pedal speeds up the engine, and, at a predetermined speed, the speed responsive member moves the element 31 to the left to connect the motor 6 to atmosphere through the pipes 30, 29, and ducts 32, 33, whereupon the engine clutch will disengage. With a fixed position of the accelerator pedal 48 excess speed of the engine is prevented, particularly when low gear is engaged, by the speed responsive member 10 acting through the lever 50 to control the throttle valve 44. When running on high gear, with full throttle opening, the engine speed may be insufficient to effect full deenergization of the motor 6. The lever 50 at this time engages the abutment 56. Further depression of the pedal 48 will therefore cause further movement of the element 31 to the left and ensure full clutch engagement. The Specification, as open to inspection under Sect. 91 comprises also a construction in which the speed responsive member 10 acts only on the valve 23 and in which clutch engagement may be obtained by depression of the accelerator pedal beyond full throttle opening. This subject-matter does not appear in the Specification as accepted.
Patent GB-516523-A (GB)
Title: Improvements in and connected with masking devices for use in printing photographs
IPC: G03B27/28
Filed: 1938-06-01
Abstract: 516,523. Photographic contact-printing and enlarging apparatus. MOSS, J. M. June 1, 1938, No. 16396. [Classes 98 (i) and 98 (ii)] A paper-holding frame for the production of photographic prints or enlargements having a border design or for combination printing, comprises a base for holding the sensitive paper and frames attached at different points thereto, for holding complementary masks, which may be selectively disposed over the paper in register. In contact printing the picture negatives may be clipped under the appropriate mask frames. As shown in Fig. 1, the base 1 has successive recesses 2, 3, 4, and to it are detachably hinged, on opposite sides, mask frames each comprising an outer part 10 provided with stops 17 adapted to engage the recesses 4, and a relatively-adjustable inner part 11 provided with strips 15 and spring hinges 16 for holding the mask. The sensitive paper is held by spring hinges 19, Fig. 4. adjustably mounted in a plate 18 adaptedto rest in the recess 4. To facilitate preliminary registration of the masks, an alignment plate having an opaque area corresponding to the picture area is first placed on the base 1 and illuminated from behind, the mask frames are turned over separately on to the base, and each mask is registered with the opaque area on the plate by adjusting the frame part 11 in the part 10. It is suggested. that a similar apparatus may be used for holding negatives and ornamental margins or other supplementary matter for projection printing, and that such a negative holder may be used in conjunction with a sensitive material holder as above described.
Patent GB-1100002-A (GB)
Title: Improvements in or relating to blank or practice cartridges
IPC: F42B5/30
Filed: 1965-04-15
Abstract: 1,100,002. Practice cartridges. DYNAMIT NOBEL A.G. 15 April, 1965 [18 April, 1964], No. 16417/65. Heading F3A. A practice cartridge which may be made of a thermoplastic synthetic material has a cylindrical body 1, a reduced hollow neck portion 2 having a cylindrical internal surface and a bullet portion 3, the neck portion being provided with longitudinally extending external ribs 5 around its periphery. A shoulder 9 between the body 1 and neck 2 has a flat annular surface 10 in which is a groove 12 to increase the area exposed to the rearward thrust of the propellent gases and thus facilitate ejection of a spent cartridge. Shallow grooves 13 may extend along part or all of the body 1. The cartridge base 14, and bullet portion 3 may be integral with the body 1 or separate therefrom. In the latter ease, base 14 and bullet 3 are made of different material from the body 1.
Patent GB-464546-A (GB)
Title: Improvements in or relating to closures for containers for medicaments
IPC: A61J1/00
Filed: 1936-06-12
Abstract: 464,546. Closures for use with hypodermic syringes. WINTHROP CHEMICAL CO., Inc. June 12, 1936, No. 16486. Convention date, April 3. [Class 81 (ii)] [Also in Group XVII] A closure for use with medicaments which are used in conjunction with a hypodermic syringe, comprises a tube 2 having a sharp pointed end. The tube is filled with an airfiltering medium and pierces the part 9 of the closure when pressed inwards. A small depression 11 locates a hole 7 suitable for the needle 15. In a modification, a screw cap is provided for the device and in a further modification, a simple rubber cap is pierced by both the tube 2 and the needle. The tube 2 may be of various types of metal, hard rubber, or synthetic resin.
Patent GB-1350253-A (GB)
Title: Process for arylating aromatic compounds with molecular sieve catalyst
IPC: C07C37/11
Filed: 1971-05-24
Abstract: 1350253 Arylating aromatic compounds ASHLAND OIL Inc 24 May 1971 [3 June 1970] 16540/71 Heading C2C [Also in Division C5] Polyaryl compounds are produced by heating one or more aromatic compounds (at least one of which b.p. 170-1000‹ F.) to 1125-1375‹ F. in the presence of a molecular sieve of pore size 8-15 Š, e.g. zeolite X or Y. The feed may contain a carbon oxide or N 2  as diluent gas. Examples are described where the feeds are: phenol and benzene (Example 36); aniline (42, 43); phenol (44, 45); and pyridine (46), but the only clearly identified non-hydrocarbon product is paraphenyl-phenol in Example 36.
Patent GB-376451-A (GB)
Title: Improvements in flat wick oil burners
IPC: F23D3/00
Filed: 1931-06-06
Abstract: 376,451. Wick burners. SHERWOOD, S. H., 44, Granville Street, Birmingham. June 6, 1931, No. 16546. [Class 75 (i).] To enable the use of a broader wick in a flat wick burner, a circular tube e of slightly larger diameter than the breadth of the wick tube a is secured to the imperforate slightly domed surface c of the burner base d. The burner base d is extended to form a perforated frame g provided with a flange g<2> on which the perforated burner cone f fits frictionally. The tube e is provided near its lower end with a number of air inlets e<2> and is either open at its upper end or covered with a freely perforated baffle plate through which the wick tube projects. An inner cone f<5> is preferably provided within the cone f. The provisional Specification states that the burner may be provided with two wick tubes.
Patent GB-1245919-A (GB)
Title: Wear-resistant toothed belt
IPC: B29D29/08
Filed: 1970-04-08
Abstract: 1,245,919. Driving belts. PIRELLI S.p.A. 8 April, 1970 [14 April, 1969], No. 16597/70. Heading F2Q. A toothed driving belt of elastomeric material 1, 3, e.g. chloroprene rubber, with longitudinal reinforcing strands 2 of wire, glass fibre, or other non-metallic material of high elastic modulus, has the toothed face covered by a rubberized fabric 4 which is self-lubricating to minimize tooth wear. The impregnating rubber for the fabric contains 5% to 40% of graphite or molybdenum disulphide, an example comprising 45% chloroprene rubber, 2% zinc oxide, 1À8% magnesium oxide, 6À2% mineral oil, 15% conductive black, and 30% graphite. The fabric has a twill weave to give grooves 7 inclined to the longitudinal axis of the belt.
Patent GB-236381-A (GB)
Title: Improvements in straw hat sewing machines
IPC: D05B23/00
Filed: 1924-07-11
Abstract: 236,381. Goodwin, H. July 11, 1924. Straw-plait sewing-machines; cords and the like, attaching.-Silk or other material is waved on to a straw or like hat simultaneously with the sewing up thereof. A standard a, fitted to the machine, carries a cam-cylinder c, which is driven from the main-shaft 2 and which oscillates through a lever h and an adjustable link j a guide-arm 5. The arm 5 may be pivoted in front or in rear of the needle.
Patent GB-561654-A (GB)
Title: Building blocks
IPC: E04B2/14
Filed: 1942-11-24
Abstract: 561,654. Building blocks. RIGBY, A. C. Nov. 24, 1942, No. 16652. [Class 87 (i)] A building block of the kind having two rectangular cavities passing therethrough and interengaging projections and recesses on the top and bottom has a continuous recess on one side and on the other side projections 3, 4 at the edges of the cavities 2 with openings 5 therebetween at the centre and at quarter and three-quarter points of the length of the block which may be of size 18" x 9" x 6" or of half width 18" x 4¢" x 6" or half length blocks 9" x 9" x 6" may be employed for various bondings. Specifications 518,448 and 540,745 are referred to.
Patent GB-1125933-A (GB)
Title: Sealing device for pharmaceutical containers and the like
Inventor: SCHOFIELD HUBERT PERCIVAL
IPC: B65D51/00
Filed: 1965-04-20
Abstract: 1,125,933. Stoppers; attaching articles to strips etc.; pharmaceutical containers. FISONS PHARMACEUTICALS Ltd. 7 April, 1966 [20 April, 1965], No. 16664/65. Headings B8C and B8T. A sealing device for a small pharmaceutical container comprises a pair of stoppers adapted to engage in holes in the ends of the container, the stoppers being connected by a resilient bridge which urges them into contact with the ends of the container. The stoppers may be conical, truncated conical or hemi-spherical in shape and the resilient bridge may have a T-shaped crosssection, the top of the T facing towards the container. The whole device may be moulded from a resilient thermoplastic material, and a number of such devices may be connected to a strip of material, for example in the form of a circle either moulded into shape or bent from a straight strip, the containers being spaced around the outside of the circle when sealed by the stoppers attached to the strip.
Patent GB-694071-A (GB)
Title: Improvements in or relating to machine frames
Inventor: BECKER EMIL
IPC: F16M1/00
Filed: 1951-07-13
Abstract: 694,071. Machinery frames. PRANGE, K. July 13, 1951, No. 16682/51. Class 80 (iv). Machinery frames, for machine tools, for example, are constructed of sheet metal pillars 1 spaced apart by thin distance tubes 2a which are secured to the pillars 1 by means of bolts 4 attached to their ends. The bolts 4 may be hooked to engage in openings in the tubes 2a or they may be otherwise secured as by welding or riveting. The tubes 2a may be of plain sheet metal with or without channel-shaped stiffeners, into which the ends of the bolts are secured, or they may be of corrugated sheet metal with a single or double wall. Distance tubes of different diameters may be employed for the same machine frame so that they may be fitted one into another for transport purposes before final assembly.
Patent GB-581537-A (GB)
Title: Improvements relating to guards for presses and like machines
IPC: F16P3/04
Filed: 1944-09-01
Abstract: 581,537. Machinery guards. UDAL, J. D., and HERBERT, W. J. Sept. 1, 1944, No. 16706. [Class 80 (iv)] A machine, e.g., a press, is provided with a pivotal guard q which must be closed before the press can be started and which cannot be opened whilst the press is in motion. The power driven flywheel c, Fig. 1, of a machine is clutched to and declutched from the crank-shaft a by a key d; normally urged to the clutched position by a spring and held in the declutched position by the inclined face of an extractor g, pivoted at h, and maintained in its operative position by a spring i. The extractor is controlled by the machine operator through a link p and has in association with it a lever z, secured at one end to a pivotal spindle 2, and carrying at its other end a roller 4 to engage the underside of the extractor. Also secured on the spindle 2 is a lever 5, carrying at its free end a roller 6 adapted to engage a notch y in a disc x mounted on the crankshaft a. The levers z, 5, are held in their operative positions, Fig. 1 by a spring-loaded plunger 7 which acts on the underside of lever z, and which, at its lower end is engaged by a spring-loaded catch 9, connected by a link 10 to the pivotal guard q. To start the machine the extractor is disengaged from the key d by depression of link p by the operator, but, before this can happen, the guard q must be closed in order that the lever z, under the action of the extractor, may displace the plunger 7. At the same time the roller 6 is disengaged from the notch y. The machine performs its operation and the roller 6 then engages the peripheral edge of the disc x i.e., the levers 5 and z cannot be displaced. Also, at the same time, the guard q may not be moved since the lower end of the depressed plunger 7 engages the radial edge of the catch 9. The guard is thus completely locked. Meanwhile, the extractor g has returned to its original position under the action of spring i. Hence at the end of the revolution, the key d again contacts the extractor and thus disconnects the crank-shaft from the flywheel. Levers 5 and z are returned to their original positions by the spring-loaded plunger 7. Fig. 2, shows an alternative construction in which the lever 5 is dispensed with and the lever z carries a roller 6 which coacts with the notched disc x, and at its free end is formed with a cam face adapted to be engaged by an oscillatory spindle 11, controlled by the operator through a link p. In a modification, the catch 9 is replaced by a second plunger disposed at 90 degrees to the plunger 7 and linked to the guard q. In a further modification, Fig. 4, a double armed lever 19, pivoted at 20, bears with one end against the extractor g, and is engaged at the other end by a pivotal catch 22 connected to the guard q by a link 23.
Patent GB-577950-A (GB)
Title: Improvements relating to jet-propelled aircraft
IPC: B64D39/00
Filed: 1941-12-31
Abstract: 577,950. Aeroplanes. ARMSTRONG SIDDELEY MOTORS, Ltd., and HEPPNER, F. A. M. Dec. 31, 1941, No. 16833. [Class 4] An aeroplane is driven by a compact jetpropulsion unit mounted at the trailing end of a wing or other streamlined surface. Each unit 11 comprises a compressor 12, combustion chamber 13 and turbine 14, air being taken in at 15 and discharged as a jet through the nozzle 16. Two such units may be mounted at the rear edge of each plane, a streamlined buttress 18 being disposed between the front end of each unit and the top of the plane. Fig. 4 shows an aeroplane in which a single unit 11 is disposed at the rear end of a nacelle 19, the tail planes being supported by parallel struts 22. A flying-boat also is described with a single unit at the rear end of the body from which the tail plane is supported by parallel booms forming continuations of the buttresses 18. Specification 439,805 is referred to.
Patent GB-952178-A (GB)
Title: Hose clamp
IPC: F16L33/04
Filed: 1960-05-12
Abstract: 952,178. Band clips. W. HENNING. May 12, 1960 [May 12, 1959; May 14, 1959], No. 16833/60. Heading E2B. In a hose clamp comprising a band 63 having lugs 64, 65 in the form of flanges located in the region of a tensioning bolt and nut, and in which each lug is provided with an extension 66, 67, the extensions are so formed that when the bolt is tightened, both extensions bear against abutment means forming part of the clamp so as to reduce the tendency of the lugs to tilt towards one another. As shown in Figs. 1 and 2, the abutment means is constituted by a web 11 welded to the band 63 upon which bent-away portions 68, 69 of the extensions 66, 67 slide as the band is tightened towards the positions shown in Fig. 2. In another arrangement, Fig. 3 (not shown) in which the length of the band is adjustable, the web is constituted by a free end portion of the band and one flange is provided on a portion which engages one of a number of slots towards the free end of the band. In a further arrangement, Fig. 5 lugs 23, 24 are apertured for the bolt and include extension 26, 27 which are rolled inwardly towards the bolt, such that as the clamp is tightened, the extensions are displaced away from the bolt into engagement with one another. In another arrangement, the Fig. 8, extensions 48, 49 are bent down over the bolt apertures and bear at their extremities on the part 50.
Patent GB-554537-A (GB)
Title: Improvements in boilers
IPC: F22B7/06
Filed: 1941-12-31
Abstract: 554,537. Return-tube steam boilers. FARRAR BOILERWORKS, Ltd., and PALMER, J. E. Dec. 31, 1941, No. 16835. [Class 123 (ii)] Cross water tubes 17a extend upwardly across the furnace flue 10 of a return-tube boiler, and manholes 19 are provided in the boiler shell to afford access to the lower ends of the tubes. The cross tube nearest the combustion chamber 14 is inclined upwardly towards the tube plate 18. The return tubes 15 are reduced in external and internal diameter at their ends near the tube plate 18. A firebrick ring 20 fitted in the rear end of the furnace flue extends into the combustion chamber.
Patent GB-691906-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: G01G23/36
Filed: 1949-06-24
Abstract: 691,906. Electric follow-up systems. LINDARS, H. June 21, 1950 [June 24, 1949], No. 16857/49. Class 40 (i) The rotary element 2 of a weighing machine 1 is connected to a remote indicator 7 through a follow-up system, e.g. a selsyn system, 4, 5, the receiver rotor 5 being damped by an eddy current disc 10 rotatable between the poles of a permanent or electromagnet 11a or 11b or 11c adjustable magnetically, mechanically or electrically to vary the braking torque and hence the damping of the receiver.