baber/WOPTO huggingface dataset:
Patent GB-1025906-A (GB)
Title: New amino-steroid compounds and processes for their preparation
IPC: C07D207/28
Filed: 1963-08-27
Abstract: The invention comprises 20-amino-pregnanes having the general formula <FORM:1025906/C2/1> wherein X is the oxygen atom of a keto group or is a group a -H(OR3), R3 being a hydrogen atom or an acyl radical Ac derived from a substituted or unsubstituted lower organic carboxylic acid having from 2-18 carbon atoms; R and R1 are the same or different, and each is alkyl, aryl or aralkyl group or together they form a heterocyclic ring system and R3 is a lower alkyl group having from 1-4 carbon atoms), and acid addition salts thereof and processes for the preparation thereof wherein an 11b -hydroxy-20-amino-pregnane of the partial general formula <FORM:1025906/C2/2> (wherein only the C and D rings of the pregnane nucleus are shown and R, R1 and R2 are as defined above) or an acid addition salt thereof, is reacted with a strong oxidizing agent so as to form the corresponding 11-keto-20-amino-pregnane or acid addition salt thereof.  As oxidizing agent there may be used sulphochromic mixture.  The preferred starting compound is 3a -acyloxy-11b -hydroxy-20-amino-5b -pregnane or an acid addition salt thereof and the product obtained therefrom may be saponified to obtain the corresponding 3a -hydroxy compound.  Dehydrogenation of the products to form 3,11-diketo-20-amino-pregn-4-enes may be effected by sequential bromination and dehydrobromination.  The pregnane base may be converted to an acid addition salt by treatment with an acid, e.g. hydrochloric or oxalic acid.  Pharmaceutical compositions having vasodilative spasmolytic action and containing compounds of the first of the above formul\SA or acid addition salts thereof, are administered orally as tablets, powders, solutions or suspension, by injection in sterile aqueous and non-aqueous solutions, via the body cavities in the forms of suppositories or pessaries, or externally as a powder, lotion, cream or ointment.
Patent GB-839407-A (GB)
Title: Detergent compositions
Inventor: BRUNT KENNETH ARTHUR
IPC: C11D1/62
Filed: 1957-10-31
Abstract: A process for the manufacture of detergent compositions comprises mixing an alcoholic, aqueous, or aqueous-alcoholic solution of a cationic surface-active agent with such an amount of a powdered water-soluble alkaline- or neutral-reacting inorganic salt that the weight of salt remaining undissolved is not less than the weight of cationic surface active agent, drying if necessary to remove any visible liquid, and then intimately mixing with an amount of anionic surface-active agent which is 2-1000 times, preferably 10-200 times, the weight of the cationic surface-active agent present.  The cationic surface-active agent is a quaternary ammonium, including morpholinium or pyridinium, or phosphonium salt; of several examples given, a mixture of octadecadienyl- and octadecenyl-trimethylammonium chlorides is preferred.  The salts used are generally sodium carbonate (hydrated or anhydrous), bicarbonate, ortho-, meta-, pyro-, or tripoly-phosphate, sulphate, borate or perborate or mixtures thereof.  The anionic surface-active agent may be soap, a sodium alkyl sulphate, sodium or triethanolammonium p-dodecylbenzene sulphonate, sodium isopropyl naphthalene sulphonate or dioctyl monosulphosuccinate, or oleoyl methyl taurine.  China clay, and sodium or magnesium silicate may also be incorporated. Specifications 753,848 and 759,837 are referred to.ALSO:Textile materials of cellulose acetate or triacetate, polyethylene terephthalate, and particularly nylon are rendered antistatic by washing in a detergent composition comprising (a) a cationic surface-active agent, (b) an anionic surface-active agent present in an amount which is 2-1000 tines, preferably 10-200 times, the weight of (a), and (c) a powdered water-soluble W  alkaline- or neutralreacting inorganic salt. Component (a) is a quaternary ammonium, including morpholinium or pyridinium, or phosphonium salt; of several examples given, a mixture of octadecadienyl- and octadecenyl-trimethylammonium chlorides is preferred.  Component (b) may be soap, a sodium alkyl sulphate, sodium or triethanolammonium p - dodecylbenzene sulphonate, sodium isopropyl naphthalene sulphonate or dioctyl monosulphosuccinate, or oleoyl methyl taurine.  Component (c) is generally sodium carbonate (hydrated or anhydrous), bicarbonate, ortho-, meta-, pyro- or tripoly-phosphate, sulphate, borate or perborate, or mixtures thereof.  China clay, and sodium or magnesium silicates may also be incorporated.  Specifications 753,848 and 759,837 are referred to.
Patent GB-1392929-A (GB)
Title: Electrophotographic material
IPC: G03G5/087
Filed: 1971-07-20
Abstract: 1392929 Photo-conductive compositions AGFA-GEVAERT 7 July 1972 [20 July 1971] 34046/71 Heading G2C An electro-photographic recording member comprises a photo-conductive layer comprising 50 to 97 wt per cent of a mixture of ZnO particles and positively chargeable particles of substances selected from BaSO 4 , SiO 2  and polyethylene in a weight ratio between 10:90 and 50:50 dispersed in a binder. The photo-conductive composition may include other positively chargeable particles, e.g. MgO, TiO 2 , CaCO 3 , zinc monobutylphosphate, maize starch, hydrophobized starch, albumin, anthracene, napthalene, benzophenone and diphenyl. The positively chargeable particles may have a grain size of 10<SP>-2</SP> to 50 microns and the ZnO 0.1 to 15 microns. The dark resistivity of the ZnO may be reduced by the use of substances as described in Specifications 1256888, 1020506 and 1020504. The binder may be polyurethane, polyester, polycarbonate, polystyrene, chlorinated rubber, acrylic resin, styrolated alkyd resin, vinyl acetate copolymer, e.g. with vinyl chloride or a copolymer of ethylene, vinyl sulphenyl chloride and vinyl chloride. The composition may include spectral sensitizers and dyes. The conductive support may be metal, condictive paper, metallized plastics, paper-metal or paper-conductive plastics laminate.
Patent GB-1298059-A (GB)
Title: Improvements in semiconductor devices
Inventor: WIEDMANN SIEGFRIED K
IPC: H01L27/00
Filed: 1971-07-21
Abstract: 1298059 Semi-conductor devices INTERNA. TIONAL BUSINESS MACHINES CORP 21 July 1971 [5 Aug 1970] 34096/71 Heading H1K An isolated low-beta transistor is produced by forming a highly doped base region simultaneously with a similarly doped isolation wall which surrounds the transistor. The resulting structure may be utilized as a self-isolated diode in the same isolated region as other such diodes or high-beta transistors. As shown, Fig. 1, a buried N<SP>+</SP> type subcollector region 2 is formed between a P- type Si substrate 1 and an N type epitaxial layer 3. Conventional masking steps are utilized for the diffusion of a P + type isolation wall 4 and simultaneously two P<SP>+</SP> type base regions 5, 6 are diffused-in above the subcollector region 2 which prevents them contacting the substrate. A common P type base region 9 is then diffusedin surrounding both P<SP>+</SP> type regions 5, 6 into which are subsequently diffused N + type emitter regions 10, 11. The resulting structure is similar to a conventional double-emitter transistor but the additional P<SP>+</SP> type base regions 5, 6 reduce the beta to such an extent that the emitter-base junctions may be utilized as diodes 7<SP>1</SP>, 8<SP>1</SP> as illustrated in Fig. 1A, the base region providing the common anode connection. In a modification, Fig. 2 (not shown), a P+ type base region is formed round only one of the emitter regions so that the other emitter forms part of a high beta transistor the base of which is connected to a diode provided by the emitter-base junction of the low beta transistor. The device should be operated so that the basecollector junction of the low beta transistor is always reverse biased and this may be achieved by arranging that the high beta transistor operates in a non-saturating mode. In another modification, Fig. 3 (not shown), two separate P type base regions are provided surrounding the two P<SP>+</SP> type base regions. This structure provides two mutually isolated diodes. In some of the structures the P type base region performs no significant electrical function and may be omitted. It is, however, preferable to perform this base diffusion since the formation of a thin oxide layer in place of the thick oxide resulting from the isolation diffusion during the conventional processing facilitates the opening of the emitter diffusion windows.
Patent GB-948390-A (GB)
Title: Improvements in or relating to by-pass gas turbine engines
Inventor: OLDFIELD THOMAS ALFRED
IPC: B64C9/38
Filed: 1961-09-22
Abstract: 948,390. Controlling aircraft. ROLLS-ROYCE Ltd. Sept. 17, 1962 [Sept. 22, 1961], No. 34121/61. Heading B7G. [Also in Division F1] A gas turbine jet engine of the by-pass type comprises a by-pass passage, an ancillary air conduit, and valve means which controls mixing of air from the by-pass passage with the jet gases before their discharge from the jet nozzle, the valve means being movable between a first position in which air from the by-pass passage is directed into the ancillary air conduit and into the jet gases, and a second position in which the supply of by-pass air to the ancillary air conduit is cut off. The valve means is so designed that in both positions, the delivery of by-pass air by the engine compressor is substantially the same under given engine operating conditions. The valve means may be so designed that the velocity ratio of the by-pass air to the jet gases at the point of mixing thereof is maintained substantially constant in both positions of the valve means. In the engine shown, the by-pass passage 15 is divided into a series of small passages 23 by means of radially-extending fairings 24 and a hollow duct member 25 pivotally mounted at 26 is associated with each passage 23. Each duct member 25 is provided with a transverselyextending vane 32 which divides the duet into passages 34, 33. In the first position of the duct member 25 shown in dash lines, by-pass air from the passage 15 is divided into two streams, one stream flowing through the passage 34 into the ancillary air conduit 37 and the second stream flowing through the passage 33 to mix with the exhaust gases flowing through the jet pipe 20. The ancillary air duct 37 is formed between vanes, see Fig. 5, and terminates in a volute 39 having an outlet 40 which communicates with control nozzles situated at the forward and rearward ends of the fuselage and at the wing tips of an aircraft on which the engine is mounted. The second position of the duct member 25 is shown in full lines in Fig. 4, the air supply to the ancillary duct 37 being cut off, and the whole of the air in the by-pass passage 15 passing into the jet pipe 20. The effective area of the passage 32 is reduced in this position by reason of the annular member 43 disposed at the upstream end of the jet pipe 20. Sealing devices 30 are provided between the walls of the hollow duct member 25 and the adjacent stationary parts. Specification 900,603 is referred to.
Patent GB-406110-A (GB)
Title: Improvements in laundry ironing machines
IPC: D06F69/04
Filed: 1932-12-02
Abstract: 406,110. Ironing-machines. KNOTT, J. S., 19, St. Agnes' Place, Kennington, London. Dec. 2, 1932, No. 34157. [Class 138 (ii).] The convex work support 5, Fig. 1, of an ironing-machine is oscillated in an arcuate path about a point 3 by means of a crank 10 and connecting rod 11 driven through worm gear from one of two oppositely rotated pulleys 12, 13. The iron 16 is universally jointed to a counterweighted arm 15, Fig. 3, pivoted to the machine frame and lowered by means of a pedal 18. Springs 22 also connect the iron to the frame and a lock 20 is provided to hold the iron in the depressed position. The rod 19 connecting the pedal to the arm 15 is provided with a yielding portion 24 and with a plate 26, Fig. 1, having three cam surfaces which coact with a projection 27 on the striker shaft 28 of the clutch 14 which is pressed by a spring 29 into engagement with the pulley 13 when the pedal is depressed to the normal extent and projection 27 coacts with the cam surface 26<a>. When the look 20 and pedal are released to raise the iron, the portion 26b of the cam coacts with the projection 27 and moves the clutch to neutral position. When it is desired to vary the length of stroke of the support, the treadle is moved to and from its fully depressed position, wherein the cam surface 26<c> coacts with the projection 27 to move the clutch into engagement with the pulley 12. A shaper 23 with which the iron coacts to nip the upstanding collar band is provided at one or both ends of the work support and such shapers may be adjustable in size and adjustably mounted.
Patent GB-880992-A (GB)
Title: Compounds of kanamycin and tetracycline type antibiotic
IPC: C07H15/234
Filed: 1959-10-08
Abstract: Compounds of kanamycin and a tetracycline are produced by reacting 1 mol of kanamycin with one to four moles of (a) formaldehyde or a polymer thereof and (b) one to four mols of tetracycline, 5-oxytetracycline, 7-chlorotetracycline, anhydrotetracycline, 7-bromotetracycline, 6-deoxytetracycline or 6-demethyldeoxytetracycline.  The compounds are prepared by adding an aqueous solution of kanamycin to a solution of the tetracycline and formaldehyde in a water-miscible organic solvent such as methanol or ethylene glycol monomethyl ether.  The kanamycin may be kanamycin A or B, a naturally produced mixture of A and B or a prepared mixture of A and B.  The compounds are monoditri- or tetra- N1-tetracyclylmethyl kanamycins wherein, in the case of tetracycline, the N1-tetracyclylmethyl radical has the formula <FORM:0880992/IV (b)/1> a kanamycin molecule being bound to one to four tetracycline molecules through one to four methylene groups, which are attached both to the nitrogen atom of a primary amino group of kanamycin and to the nitrogen atom of the carboxamido group of the tetracycline. The non-toxic acid addition salts may be prepared from these compounds by conventional means.  Specification 817,385 is referred to.
Patent GB-492332-A (GB)
Title: Improvements in and relating to electric condensers
IPC: H01G4/38
Filed: 1937-12-10
Abstract: 492,332. Condensers. BRYCE, Ltd. Dec. 10, 1937, No. 34214. Convention date, Jan. 21. [Class 37] In condensers having wound electrodes 4, 5 the edges of which overlap those of adjacent units to form a series, the metal foils are perforated as at 18, Fig. 2, between the overlapping portions, to facilitate impregnation. The dielectric material may be interrupted at these points for the same purpose. At the ends the outwardly extending foils may be clamped around a terminal bolt as at 6. The casing 12 of insulating-material may be metal sprayed at its ends and have a metal cover 13 soldered thereto. With an oil immersed condenser an expansion accommodating device connected to an air vent may comprise an oil resistant rubber tube 14 one end of which is closed.
Patent GB-507176-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/30
Filed: 1937-12-10
Abstract: 507,176. Windings for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 10, 1937, No. 34278. Convention date, Dec. 11, 1936. [Class 35] The armature coils of a commutator type machine consist of two or more series connected sections, and corresponding coil sides of each of the sections are arranged in adjacent slots, the slots also containing a coil side of a different section of an adjacent coil. In the form shown, coil sections 1A, 1B are in series between segments 6, 7, sections 2A, 2B between segments 7, 8 and sections 3A, 3B are in series between segments 8, 9, and corresponding coil sides 1a 1b, 2a, 2b, 3a 3b, occupy adjacent slots also occupied by coil sides of a different section of an adjacent coil. Reference has been directed by the Comptroller to Specification 13532/97, [Class 35].
Patent GB-1515554-A (GB)
Title: Sound recording and reproducing apparatus
IPC: G11B15/08
Filed: 1975-08-19
Abstract: 1515554 Tape cassette COMPUR-WERK GmbH 19 Aug 1975 [25 Sept 1974] 34343/75 Headings B8M and B8B A sound recording and reproducing apparatus comprising a magnetic tape cassette, has an arrangement for detecting a particular position of the tape, comprising a light beam emitter and receiver installed in the apparatus and a reflecting surface integral with the cassette casing which is positioned relative to the tape and the emitter so as to deflect the light beam into the receiver when the requisite position of the tape has been reached. The surface may be flat or concave and may be arranged to deflect light from an aperture in or a reflective coating on the tape, or from an aperture uncovered by the depletion of windings on a tape spool, or by a pivoted obturating member movable in response to such depletion. Symmetrically offset pairs of surfaces may be provided when the tape has two tracks. The receiver may be a photoelectric resistance providing a pulse to operate a tape drive stop device on receipt of the light beam, e.g. when the end of the tape is reached.
Patent GB-1419934-A (GB)
Title: Bottom unloading means for silo
IPC: B65D88/68
Filed: 1974-08-05
Abstract: 1419934 Discharging silos FLYING DUTCHMAN Inc 5 Aug 1974 [6 Aug 1973 6 June 1974] 34379/74 Heading B8E Flexible silage dislodging members 34 are carried by a rotatable shaft 22 adapted for mounting adjacent an outlet 24 in the bottom 12 of a silo 10, an upper member 34<SP>1</SP> being shorter than a lower member 34L of maximum length so as to form a domed cavity 46 in the silage on rotation of the shaft. The members 34, e.g. chains, below the member 34L are progressively shorter, and all the members carry digging elements 38. Silage is discharged through the outlet 24 to a conveyer 26 by an auger 28 on the shaft 22. The silo bottom 12 includes an access hatch 16.
Patent GB-1464271-A (GB)
Title: Pressure gauge
IPC: G01L7/08
Filed: 1975-09-15
Abstract: 1464271 Pressure gauges BOC INTERNATIONAL Ltd 15 Sept 1975 [5 Aug 1974] 34384/74 Heading G1L A device to indicate whether a vessel e.g. a gas cylinder is filled to a predetermined amount comprises a transparent body 10 having a conical surface 16 on the pressure-facing side which normally reflects totally all light entering from the viewing side surface 12. Pressure from the vessel is applied to the undersurface of a resilient conical disc 18 containing reinforcing elements 22, 24 and when pressure is above a certain value indicating a satisfactory charge, it presses the disc against the surface 16, obliterating the internal reflective capacity and giving a visual indication. A leak in the disc is signalled by gas escaping through a passage 28 to cause whistling.
Patent GB-383449-A (GB)
Title: Improvements relating to masts, poles, or like supports and their manufacture
IPC: E04H12/10
Filed: 1931-12-12
Abstract: 383,449. Lattice posts. BARTON, P. C., Granville Iron Works, Ruston Street, Birmingham. Dec. 12, 1931, No. 34453. [Class 20 (i).] A lattice-post is formed of three anglesection uprights c disposed at the corners of a triangle and connected together by means of obliquely disposed connecting strips d assembled in the form of a triangulated bracing helix and bolted or welded to the upright or to some of the uprights. One end of a strip may be edge welded to the edge of one upright and the other end bolted in an overlapping joint to another upright, or one end of a bracing bar may be integral with the upright and formed by splitting the flange of the upright and bending a portion out at an angle, as shown in Fig. 4.
Patent GB-359251-A (GB)
Title: Improvements in or relating to stoppers for bottles, flasks and the like
IPC: B65D55/14
Filed: 1930-11-17
Abstract: 359,251. Bottle &c. stoppers ; permutation locks. HUGHES, L. W., 18, Southfields Road, Eastbourne, Sussex. Nov. 17, 1930, No. 34594. [Class 125 (iii).] In a bottle &c. closure of the kind in which the normal bottle opening is disposed within a cover provided with a plurality of rings which together form a permutation &c. lock, there is provided a tubular sleeve to be passed over the lip of the bottle and secured to the upper portion of the neck by clamping means, the sleeve being arranged to engage the locking device on the cover independently of the lip of the bottle. The tubular sleeve member 10 is adapted to be attached to the bottle neck by a screw 17 which passes through the resilient lugs 12, 13. The top portion of the member 10 is screwthreaded at 19 for engagement with a screwed cap 20 fitted with a washer 21. The lower portion of the member 10 is formed with a flanged projection 24 above which is a shoulder upon which seats the member 26 of a combination or permutation lock. The flange 31 of the member 26 supports channel shaped ring 28 and an angle shaped ring 32 separately rotatable, which are held against motion in an axial direction by the member 34 riveted to the member 26 at-35. The members 26, 28, 32 are each slotted at one side to pass over the projecting lugs 12, 13, and on separate partial revolution are each locked by the same. In a modification, the member 10 is formed as a resilient ring, a stud at one end being adapted to engage with one of a series of holes in the other end, to allow of fitting to different sized bottles, a set screw and guard keeping the member in place and replacing the members 12, 13, above. The inner flange of the ring 28 and the inner portion 33 of the ring 32 are preferably formed in one plane, so that it is impossible to feel the position of the gap by separate revolution of those rings.
Patent GB-507440-A (GB)
Title: Resilient support for radio valves
IPC: H01R33/975
Filed: 1937-12-15
Abstract: 507,440. Electric - lamp holders; thermionic valves. LONG, E. S. Dec. 15, 1937, No. 34689. [Class 38 (i)] [Also in Group XL] In order to retain a radio valve 1 or the like in position in the holder, a flexible resilient retaining band 6 is used. The band is apertured at 7 to engage hooks 5 on the chassis 3, and is slotted at 8 to accommodate the reduced part of the valve. Alternatively, the central part of the band may be shaped.
Patent GB-1134733-A (GB)
Title: Improvements in or relating to methods and arrangements for automatically regenerating ion exchangers
IPC: B01J49/80
Filed: 1966-08-03
Abstract: 1,134,733. Ion-exchange. PHILIPS GLOEILAMPENFABRIEKEN N.V. 3 Aug., 1966 [6 Aug., 1965], No. 34786/66. Addition to 1,119,796. Heading B1J. In the water softener and washing machine apparatus of Specification 1,119,796 the conductivity of the salt solution on. its way to the softener is monitored to indicate a decrease in salt concentration and the need to replenish the regenerating liquid.
Patent GB-1057330-A (GB)
Title: Centrifuge receptacle
IPC: B04B11/04
Filed: 1965-09-09
Abstract: 1,057,330. Plastics containers. G. N. HEIN. Sept. 9, 1965, No. 34833/66. Divided out of 1,057,329. Heading B8D. A receptacle for holding a sample of blood to be treated in a centrifuge 5, 6 is made of plastics material and has a flexible lower portion 21 which is united by fusion to a substantially rigid upper portion 22. The upper portion is transparent and has a central opening 24 which is surrounded by an upstanding divergent wall portion 25. The lower portion is opaque, translucent or transparent and in its undeformed state has a downwardly projecting truncated conical part, Fig. 2 (not shown). with a flat top, this part being displaced upwardly when placed on a cone 9 in the centrifuge bowl. When after centrifugation it is desired to discharge the blood constituents through the opening 24 separately, fluid is introduced in the required amount through a tube 12 and passages 14 to deform the portion 21 of the receptacle in the manner shown in dotted lines on the right-hand side of the Figure. Predetermined quantities of the constituents may be discharged by introducing the fluid in controlled amounts.