baber/WOPTO huggingface dataset:
Patent GB-814877-A (GB)
Title: Steroid compounds and the preparation thereof
IPC: C12P33/00
Filed: 1956-01-20
Abstract: The invention comprises compounds having the formula <FORM:0814877/IV (b)/1> wherein R is a carboxylic acid group preferably having 1-10 carbon atoms or a hydrogen atom and X is bromine, fluorine, or chlorine, a process for the preparation of the 9-bromo derivative thereof by reacting D 4,9(11)-pregnadiene-14a , 17a ,21 - triol - 3,20 - dione - 21 - ester with an N-brom lower alkyl amide or N-bromo dicarboxylic acid amide and specifically N-bromacetamide, N - brompropionamide or N - bromsuccinimide so as to introduce selectively the elements of hypobromous acid at the isolated double bond present at the 9(11)-position of the molecule; and a process for the preparation of the corresponding 9-chloro and 9-fluoro derivatives by contacting D 4 - 9a  - halo - 15b -bromopregnene - 11b ,14a ,17a ,21 - tetrol - 3,20-dione-21-ester with Raney nickel.  The reaction to obtain the 9-bromo derivative may be effected in the presence of an oxidizing acid such as perchloric acid and a medium consisting of water and a stable water-miscible organic solvent, e.g. dioxane. The dehydrobromination reaction to obtain the 9-chloro and 9-fluoro compounds may be effected in the presence of an inert solvent such as ether, ethyl acetate or dioxane and similar solvents. The products may be hydrolysed to provide the 21-alcohols if desired. Examples described the preparation of D 4-9a  bromo and 9a -fluoro-11b ,14a ,17a ,21-tetrol-3,20-dione 21-acetate. Specifications 769,998, 770,000, 814,878, 814,879 and 814,880 are referred to.ALSO:D 4 - 9a  - Halo - (especially fluoro) pregnene-11BETA,14a ,17a ,21 - tetrol - 3,20 - dione - 21 - esters, which are highly active as anti-inflammatory agents, may be administered by intra-articular injection, or as an ointment or finely divided suspension to the eyes and other body tissues. Antibiotics may also be incorporated.  Specifications 769,998, 770,000, 814,878, 814,879 and 814,880, [all in Group IV (b)], are referred to.
Patent GB-1482307-A (GB)
Title: Method of and apparatus for producing pigmented thermoplastic film
IPC: B29C48/395
Filed: 1975-01-16
Abstract: 1482307 Controlling pigmentation of extruded thermoplastics film MOBIL OIL CORP 16 Jan 1975 [21 Feb 1974] 01969/75 Heading B5A [Also in Division G3] A pigmented thermoplastic material is extruded in the form of a hollow tube from an annular die 61, which may or may not rotate, its apparent thickness is measured by a radiation gauge 68, e.g. a backscatter gauge, and its weight per unit area is measured, a comparison of the two measurements being used to control the amount of pigment added to the material in extruder 60. The control is effected automatically, although reference is made to manual control. Weighing may be effected continuously by a roller scale (as shown) or after cutting off areas of material (Fig. 4, not shown). Preferred thermoplastic materials and pigments are given.
Patent GB-914955-A (GB)
Title: Improvements relating to the extraction of gas from caking coal
IPC: C10B49/08
Filed: 1959-01-19
Abstract: 914,955. Coking coal. STEINMULLER G.m.b.H., L. & C., and STEINKOHLENELEKTRIGITAT A.G. Jan. 19, 1959 [Jan. 18, 1958], No. 1990/59. Class 55 (1). In a process for coking finely divided coking coal and wherein the coal is suspended in a carrier gas in a proportion of at least 1 kg./ s.c.m. of gas, the coal is in a first stage suspended in a carrier gas containing free oxygen for a time not exceeding 4 seconds at a mean temperature between 320‹ and 420‹ C. to remove at least a major part of the coking properties of the coal and then coked suspended in a carrier gas containing a combustible gas. The coal is ground to a fineness such that not more than 25% has a particle size exceeding 90Á or not more than 5% exceeds 120 Á. In the first stage or oxidation zone the coal is preferably fed into the carrier gas at a number of points and the amount of coal suspended therein may be between 4 and 8 kg./s.c.m. The oxidized coal may be separated from the carrier gas after leaving the oxidation zone or a combustible gas, e.g. coal gas produced during the process, may be added to the mixture of carrier gas and oxidized coal as it enters the second stage or coking zone. In the former case coarse particles may be separated from the oxidized coal and fed separately to the coking zone as an annular stream surrounding a jet of finer coal particles. The amount of coal in the carrier gas in the coking zone is preferably greater than that in the oxidation zone and may be between 6 and 8 kg./s.c.m. In the apparatus shown in Fig. 1 the ground coal is fed into the bottom of an oxidation zone 5 together with a carrier gas containing free oxygen preheated to a temperature of 450‹ C. The lower portion of the zone 5 comprises a series of externally heated tubes 10 and the upper part of the zone consists of a tube 11. Additional carrier gas containing free oxygen may be added at 13 and the mixture of carrier gas and oxidized coal withdrawn through line 15 is passed to separator 16 or if the coal contains a substantial amount of particles having a grain size greater than 90 Á to separator 17. Fine coal particles are fed to the coking zone through line 22 and the coarser particles (if any) through line 30. Air for combustion and combustible gas are supplied to the coking zone through lines 34 and 32, respectively. The coking zone has three sections 25, 37 and 38, sections 37 and 38 comprising nests of externally heated tubes, the tubes of section 38 being of greater diameter than those of section 37. The tubes of sections 37 and 38 may be suspended in the shell of the coking zone and may be vibrated. Any residual coking capacity of the coal is removed in the section 25 and the final coking temperature in section 38 may be 800 ‹ C. and the time of residence of the material being coked therein may be 6 seconds.
Patent GB-536347-A (GB)
Title: Improvements in metal scaffold boards
IPC: E04G9/06
Filed: 1940-02-03
Abstract: 536,347. Scaffold boards ; trench linings. SCAFFOLDING (GREAT BRITAIN), Ltd., and JONES, D. H. Feb. 3, 1940, Nos. 2147 and 17011. [Class 20 (ii)] [Also in Group XXI] Scaffold boards which may also be used as poling boards 10 for trenches are formed of outer-opposed metal channel sections 13 with their edges brought close together, and inner metal bar sections 15 disposed with their flanges 151 across the joint spaces which are filled with welding metal. The inner bar sections may be of channel, tubular, elliptical or other crosssection. The channel sections may have different widths of flanges so that the joints on opposed sides are staggered. In a modification, Fig. 3, the inner member 161 may be formed of box section with depressed portions at the edges to receive the edges of the flanges of the outer channel section members. The boards may be coated with bitumastic paint and sand dressing. Boards may be connected lengthwise by shaped spigot portions on one length engaging the ends of the inner members of the adjacent board or by resilient connectors 22, Fig. 9 secured to the end of one board engaging in the hollow spaces at the ends of the adjacent board.
Patent GB-607039-A (GB)
Title: Improvements in or relating to manifoldly interleaved resilient tubular metal bodies
IPC: B21C37/09
Filed: 1946-01-23
Abstract: 607,039. Making tubes. METALLSCHLAUCHFABRIK AKT.-GES. Jan. 23, 1946, No. 2281. Convention date, Feb. 2, 1945. [Classes 83 (ii) and 83 (iv)] [Also in Group XXVIII] Welding.-A manifoldly interleaved resilient metal tube for bellows-like bodies is formed from a metal band wound into several layers at least the outer margin of the band being secured. The band may be of rustless steel. The first layer .2 may be wound on a core and marked at the position to be welded and then placed between roller electrodes 4, 5 and first spot-welded and then seam-welded at 2<SP>1</SP>. A series of layers 6 are then wound round the layer 2 and the place on the outer end of the band which registers with the inner welded seam is marked on the band and surplus material cut off. All the inner windings are folded inwardly, Fig. 2, and held down by screws while seam-welding is effected between electrodes 4, 5 on the outer margin. The folded layers are then allowed to return to normal position. If desired, one margin may be seam-welded and the other spot-welded, or the inner margin may be left unwelded. A tube for a pipe line compensator may have ten windings each of 0.2 mm. in thickness, and the inner diameter of the tube may be 200 mms. The Specification as open to inspection under Sect. 91 states that the inner and outer seams may be welded simultaneously throughout the length and thickness of the tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-1017961-A (GB)
Title: Improvements relating to rotary elastic-fluid and hydraulic machine installations
Inventor: PLATTS DOUGLAS JOHN
IPC: G21C15/24
Filed: 1962-01-22
Abstract: 1,017,961. Reactors. ENGLISH ELECTRIC CO. Ltd. Jan. 18, 1963 [Jan. 22, 1962], No. 2287/62. Heading G6C. A blower for a gas-cooled reactor is removably mounted within the pressure vessel in a housing extending through the vessel wall, valve means on the housing serving to isolate the vessel interior from the exterior atmosphere when the blower is withdrawn from the housing. As shown, a housing 15 extends from the exterior 11 through the wall of a concrete pressure vessel 10 into the pressurized interior divided into two parts 12, 14 by a bulkhead 13, the gas blower 20 serving to circulate the gas from the part 12 into the part 14. The housing comprises a fixed tube 16 and a sleeve 17 axially movable on a sleeve 32 constituting the stator of the blower. The sleeve 17 is slidable in the bulkhead 13 and supported at its other end by a pivoted link 54 carried by an arm 52 pivoted at 53 and having a counterweight 51. The blower rotor 21 has variable-pitch blades 24 which draw the gas through an inlet 35, over the outside of a conical diffuser 39 fixed by vanes 40 to the stator 32 and expel the gas through the end 17a of the sleeve 17. A ram 60 slidably mounted in the diffuser is subjected to a control gas pressure by gas supplied by pipe 63 to a chamber 61, the ram 60 carrying a cap 55 which may seal the sleeve end 17a. The cap 55 is connected through links 57, 58 to vanes 59 fixed to the sleeve 17, Fig. 4. Normally, the parts have the positions shown in Fig. 1 and in order to remove the blower the control gas pressure in chamber 61 is reduced so that differential pressure acting on the cap 55 causes the latter to move to the Fig. 4 position in which the end 17a is sealed. Locking dowels 18 are released (described in detail with reference to Fig. 2, not shown) whereby the sleeve 17 may slide on the stator 32 so that the differential pressure on the cap 55 causes the latter to push the sleeve and the inlet 35 is closed, the end of the sleeve 17 making sealing engagement with the opposed end of the tube 16. The blower 20 may now be withdrawn.
Patent GB-553041-A (GB)
Title: Improved method of and means for effecting dimpling operations
IPC: B21D22/04
Filed: 1942-02-21
Abstract: 553,041. Jointing by stamping. TURTLE, R. C., and BRISTOW & HALDANE, Ltd. Feb. 1 21, 1942, No. 2311. [Class 83 (iv)] A tool for connecting a sleeve to a cam by dimpling comprises levers 1, 2 pivoted at 3. Work supports 17, 18 are also pivoted at 3 independently from the levers but straddling them. When the levers are in the open position the supports are maintained closed by springs 23, 24 engaging recesses in the levers and supports. Work may be introduced either endways or, when collars or projections prevent this, laterally assisted by flared ends 17, 18 and as permitted by the springs. The dimpling tools 10, 11 are secured in recesses in the levers by screws 15 engaging flats on the tools, and operate through openings 30 in the supports when the levers are closed by means such as a right and left-hand screw 8. The depth of dimpling may be controlled by contact of the bifurcated ends of the levers that receive the trunnion nuts 6, 7 or the plain central part of the screw may be fitted with a collar for this purpose. The levers may be operated by toggle mechanism. The tool may be used for securing sleeves, tubular fittings &c. to multispaced flexible cables.
Patent GB-371449-A (GB)
Title: Manufacture of new chromiferous azo-dyestuffs
IPC: C09B45/16
Filed: 1931-01-23
Abstract: Azo dyes, soluble chromium compounds of; regenerated cellulose, dyeing.--Azo dyestuffs containing chromium are obtained by treating with agents yielding chromium the dyestuffs obtained by coupling diazotized 5-nitro-2-aminophenol in acid solution with a component of the formula <FORM:0371449/IV/1> in which Pv is an aryl residue.  The products dye regenerated celluloses, such as viscose and copper silks, fast green tints.  In an example the dyestuff 5-nitro-2-aminophenol --> (acid) O-p-toluenesulphonyl-2 : 5 : 7-acid is boiled for 15 hours with an aqueous solution of chromium fluoride, formate, or sulphate; the product gives on regenerated cellulose uniform green dyeings fast to light.  An example of the dyeing process for viscose is given.  O-p-Toluenesulphonyl-2 : 5 : 7-acid is obtained by treating 2 : 5 : 7-acid with p-toluenesulphonic chloride in presence of free alkali.
Patent GB-1025458-A (GB)
Title: Automatic release mechanism for milking apparatus
Inventor: LIPPKE DONALD EUGENE
IPC: A01J7/00
Filed: 1965-01-19
Abstract: 1,025,458. Milking machines. STARITE PRODUCTS Inc. Jan. 19, 1965, No. 2365/65. Heading A1M. A milk-receiving vessel subjected to vacuum is provided with a lid assembly 2 supporting four milk receptacles 7 each having a cover 13 with an inlet port connected to a teat cup and a vent 15 to atmosphere, an outlet being provided by a tube 8 upstanding from the base of the receptacle and having its opening 17 controlled by a spherical valve member 18. A valve-acuating member 20 extends into the receptacle and has an enlarged head 23 positioned so that upward movement of member 20 dislodges the sphere 18 from the opening 17 thereby subjecting the teat cups to vacuum so that milk flows into receptacle 7. An annular float 16 located around tube 8 rises with the inflow of milk and prongs 19 carried thereby hold the valve 18 raised so that milk flows into the receiving vessel through tube 8 and also through opening 9 formed in the base of the receptacle. When the milk flow ceases float 16 falls so that sphere 18 seats against the opening.17 and float 16 seals opening 9. The teat cups are then cut-off from vacuum, air enters through vent 15 and the teat cups fall or are removed from the cow. The cover 13 is provided with a depending spirt 24 which ensures that sphere 18 reseats on opening 17. The member 20 is detachably secured to a plate 25 located above a handle slidable on a post on the lid assembly so that upward movement of the handle raises member 20. The post is extended to project through a part of the handle, the position of its upper end indicating whether the member 20 is raised or lowered. In a modification downward movement of the members 20 unseats the valves 18. The lid assembly may be used on a milk pail or a container connected in a pipe-line milking system.
Patent GB-802980-A (GB)
Title: Improvements in or relating to poppet valves for internal combustion engines
IPC: F01L3/08
Filed: 1957-01-23
Abstract: 802,980. Valves and valveguides. GENERAL MOTORS CORPORATION. Jan. 23, 1957 [Feb, 20, 1956], No. 2429/57. Addition to 801,776. Classes 7(2) and 7(6) The stem 24 of an intake poppet valve 20 is provided with an annular recess 50 of sufficient length to remain in communication througout the motion of the valve with an air vent passage 46 leading to atmosphere, thereby preventing lubricating oil being drawn down the valve guide by the suction in the intake passage.
Patent GB-679866-A (GB)
Title: Improvements in or relating to tubulous vapour generators
IPC: F28F9/02
Filed: 1950-01-31
Abstract: 679.866. Water-tube steam &c. boilers: superheaters. BABCOCK & WILCOX, Ltd. Jan. 31, 1950 [Feb. 1, 1949], No. 2482/50. Classes 123(ii) and 123(iii) A steam &c. boiler comprises an upper steam-and-water drum 10 and a lower water chamber 12 which are integrally connected by an axial downcomer 14 of large diameter, a bank 18 of steamgenerating tubes, a superheater 20, and a surrounding wall 16 which includes a pressure-resistant metal shell 180, having inner and outer layers 182, 184 of thermal insulation, and is provided with one or more openings, for example two, 50, 62 for burners discharging into furnace chambers 22, 60 and one or more gas outlets 30. As shown the tube bank 18 and superheater 20 are screened from the respective furnaces by team-generating tubes 32, 94, the wall 16 by tubes 40...44 and 70...74, and the downcomer 14 by tubes 110... 113, all these tubes extending between the upper drum 10 and lower chamber 12; moreover the superheater 20 is screened from the furnace 22 by a baffle or tube wall 34, of the kind described, for example, in Specification 433,834, and similar walls 80 and 90, 92 define the furnace 60. The arrangement is such that gases from the furnace 60 will flow in the direction of the arrows 64... 67 through the superheater 20 and then above, below and around the baffle 34 to the furnace 22 where they will mix with the gases therein and flow in the direction 26, 27, through the tube bank 18 to the outlet 30. The superheater 20 comprises banks of tubes 160...163 formed by reversely-bent tubes connected between an inlet header 154, having inlet ducts 144, 146 leading from the steam space of the drum 10, and an outlet header, not shown, with steam take - off 168. Feedwater is supplied to the .chamber 12 through an inlet 200, and the drum 10 is preferably fitted with the steam-and-water separator 130 described in Specification 679,867, [Group II] and a vortex inhibitor 126. The boiler is supported by elemnts 204, 206 associated with the chamber 12 and other elements 208 secured around the shell 180, the lower end of the latter being fixed to the chamber 12 at 179 and its upper end 222 having sliding contact, through a sealing gasket 230, with the drum 10. Several modifications are described, including one, Fig. 7, in which there is provided a single furnace 300, the gases therefrom being divided by a partition 302 to flow through two passes 306. 308 respectively to damper-controlled outlets 328, 312. The pass 306 locates a superheater 324 followed by steam-generating tubes, and the pass 308 a bank of steam-generating tubes only.
Patent GB-121398-A (GB)
Title: Improvements in Starting Devices for Internal-combustion Engines.
Inventor: ALLISON FRED
IPC: F02N99/00
Filed: 1918-02-12
Abstract: 121,398. Allison, F. Feb. 12, 1918. Turning-gear.-A compressed-air motor is slidably mounted near the engine to be started and comprises a heavy friction wheel M which is set in rotation by the motor and then brought into engagement with the engine fly-wheel N by means of a hand-controlled screw device Q. The motor comprises a compressed-air reservoir B slidable on a grooved base-plate and carrying a motor cylinder C and a pump cylinder E, both pistons being connected to a crank-shaft K. The pump cylinder is driven from the main engine to recharge the reservoir B, and the motor is moved away from the engine when the reservoir is sufficiently charged. The cylinder E and the valve chamber of the cylinder C are connected to the reservoir B by pipes having valves conjointly controlled by a hand-wheel X.
Patent GB-371824-A (GB)
Title: Improvements in and relating to methods of and means for guiding vessels
IPC: G01S1/02
Filed: 1931-01-26
Abstract: 371,824. Intermittent light signals. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Langmuir. I.; 6, Stratford Road, Schenectady, New York, U.S.A.) Jan. 26, 1931, No. 2533. Convention date, Jan. 27, 1930. [Class 118 (ii).] To facilitate the navigation of aircraft or other vessels, advantage is taken of the characteristic periodicity of the local electric light supply to enable the navigator to distinguish between the diffused light above a town and beacon lights, or other sources of modulated light, from an airport or landing field. The Figure shows the installation on board the craft to be navigated. Two photo-sensitive cells 2, 3 preferably of the type described in Specification 303,476, [Class 39 (i), Electric lamps, Arc &c.], are balanced across a battery 5 by a variable resistance 6. The cells are coupled to push-pull amplifiers 9, 10 through condensers 11, 12 which pass only the alternating component from the cells due to the electric lights, as distinct from the steady content of natural light in the sky. The output is passed through further amplifiers 15, and rectifiers 13<1>, 14<1> to actuate two indicator meters 7, 8. The coils 16, 18 of the meter 7 are additive in effect, whilst the coils 17, 19 are in opposition. Each meter preferably comprises two vibrating reeds, one tuned, say, to the normal frequency of the electric light supply, and the other to a special modulative frequency from the beacon or signal lights at the aerodrome. The pilot is guided as to the respective location of the town and aerodrome by the vibration of the corresponding reed of the meter 8, whilst the closeness of his destination is shown by the amplitude of vibration of the corresponding reed in the meter 7. The amplifying circuits can be tuned at will to one or other of the two frequencies by a changeover switch 22. The differential windings of the meter 8 cause the reed to indicate the direction to port or starboard of the source of the light falling on the cells 2, 3. For daytime operation the value of the resistance 6 in the external circuit of the cells is reduced. In a modified arrangement, a single photosensitive cell is arranged in the tail of the aircraft and is illuminated successively from alternate sides by means of a revolving mirror driven by a wind turbine. The output from the amplifier is fed through a distributer to the indicating meters which are mounted on the instrument board near the pilot. Morse messages to the pilot may be superposed on the electric-light frequency supplied to the navigational beacon lights. Infra-red or ultraviolet light may be used for signalling instead of visible lights.
Patent GB-973929-A (GB)
Title: 1-aroylpropyl-4-acylpiperidines
IPC: C07D211/58
Filed: 1963-01-21
Abstract: The invention comprises compounds of the formula <FORM:0973929/C1/1> wherein Ar is fluorophenyl or thienyl; R is C1- 6-alkyl or phenyl and NR1R11 is dimethylamino, morpholino, piperidino or 1-pyrrolidinyl. The compounds form salts with acids and quaternary ammonium salts with organic esters of sulphuric hydrohalic and aromatic sulphonic acids.  The compounds are prepared by condensing an aroylpropyl halide ArCOCH2CH2CH2-Halogen with a 4-acylpiperidine of the formula <FORM:0973929/C1/2> 4-Acylpiperidines are prepared by reacting a 1-benzyl-4-cyanopiperidine of the formula <FORM:0973929/C1/3> with an appropriate organo lithium compound followed by catalytic hydrogenation to remove the benzoyl group.
Patent GB-880098-A (GB)
Title: Improvements in or relating to cooking utensils
Inventor: LANG ERNST
IPC: A47J37/10
Filed: 1958-01-28
Abstract: 880,098. Grilling-utensils. RITTER, H. Jan. 28, 1958, No. 2778/58. Class 28 (1). [Also in Group XVII] A bowl-shaped grilling-pan 10 has a bottom plate 11 with a ribbed upper surface wherein radial ribs 14 divide the surface into sectors each containing a number of V-shaped rib pairs 16, 17 located one within the other and forming V-shaped grooves 15, 18, 19 open at the edge of the plate. A weighting plate 21 may be provided with similar ribs and grooves or may have concentric ribs and vent holes connecting the grooves to the upper surface, Fig. 5 (not shown).