baber/WOPTO huggingface dataset:
Patent GB-733449-A (GB)
Title: Steroid alkali-metal enolates
IPC: C07J75/00
Filed: 1953-01-21
Abstract: The invention comprises 21-alkoxyoxalyl-3-hydroxypregnane-11,20-dione alkali metal enolates of the general formula <FORM:0733449/IV (b)/1> wherein M represents an alkali metal and R represents an alkyl radical, and a process for the preparation thereof by mixing a 3-hydroxypregnone-11,20-dione with an alkyl diester of oxalic acid in the presence of a catalyst consisting of an alkali metal or an alkali metal base and maintaining the reaction mixture at a temperature between about 0 DEG  C. and the boiling point of the reaction mixture.  The preferred compounds are those in which the alkyl radical of the alkoxy group contains from 1 to 8 carbon atoms, and those in which M represents sodium or potassium.  The alkyl radicals of the diester of oxalic acid may each contain from 1 to 8 carbon atoms.  The catalyst may be an alkali metal alkoxide, e.g. containing from 1 to 8 carbon atoms, on alkali metal hydride, sodium amide or triphenylmethyl sodium.  The reaction may be carried out in an alkanol corresponding to the ester of the oxalic acid, or in an inert solvent such as benzene or ether.  In the examples the following compounds are prepared: the sodium enolates of 21-ethoxyoxalyl-3a  - (and 3b  -) - hydroxypregnane - 11,20 - dione and the corresponding 21-methoxyoxalyl compounds and the potassium enolate of 21-ethoxyoxalyl - 3a  - hydroxypregnane - 11,20 - dione, the catalysts used being sodium methoxide, sodium in ethanol and methanol, potassium in tertiary butyl alcohol and sodium amide in benzene.  Additional compounds referred to are the sodium and potassium enolates of 3a - and 3b -hydroxypregnane - 11,20 - dione containing at the 21-position the propoxyoxalyl, butoxyoxalyl, amyloxyoxalyl, hexyloxyoxalyl, heptyloxyoxalyl and octyloxyoxalyl radicals.  21 - Glyoxalic acid of 3a  - (and 3b  -) hydroxypregnone - 11,20 - dione are prepared by heating the above enolates with potassium hydroxide in water and alcohol and then acidifying the reaction mixture.  3a  - (and 3b  -) hydroxy - 21 - acetoxypregnane 11,20-dione are prepared by reacting iodine in methanol with an enolate of the above general formula and then adding sodium methoxide in methanol to form  3a  - (and 3b  -) hydroxy - 21 - iodo - pregnane-11,20 - dione and the resulting iodo compound is reacted with glacial acetic acid in the presence of potassium bicarbonate to form the 21-acetoxy radical.
Patent GB-864867-A (GB)
Title: Mechanism for adjusting photographic cameras in terms of exposure values
IPC: G03B7/00
Filed: 1958-01-20
Abstract: 864,867. Photographic cameras. DECKEL, H., and DECKEL F., W. Jan. 20, 1958 [Jan. 25, 1957], No. 1838/58. Class 98(1) In a photographic camera, an exposure meter pointer follower 102a on an exposure value indicator is operated by an arm 76a rotatable about an axis parallel to the optical axis by means of a centrally pivoted member 68 co-operating with edge cams 64 and 66 on rings 54 and 58 rotatably mounted in a lens mount and coaxial with the optical axis. Compensating adjustments of the shutter speed and diaphragm aperture, which do not vary the amount of light received by the film, rotate cams 64 and 66, respectively, so that member 68 turns about the pivotal axis 74 while the position of arm 76a remains unchanged. Cams 64, 66 may be stamped from pre-hardened material and more than one cam may be provided on each ring 54, 58. An additional cam may, for example, be used to allow for film sensitivity. As shown in Fig. 2, an exposure value scale 90 is viewed through a window in the lens mount and the scale ring 88 is driven by arm 76 through pinion 84. The shutter and diaphragm are constructed so that equiangular displacement of their adjusting rings 28 and 34, respectively, bring about compensating adjustments of shutter and diaphragm. To adjust the exposure value scale the rings 28 and 34 are moved separately and a catch holding ring 28 stationary is less easily over ridden than the engagement of spring catch 48 with notches 52 in ring 34 so that ring 34 may be turned alone without holding ring 28 stationary. Catch 48 may alternatively be omitted or replaced by a coupling which is only operative to lock rings 34 and 28 together when the latter is turned. In another form (Figs. 7 and 8, not shown) the scale carrying part of the diaphragm adjusting ring 34 is displaceable relatively to the remainder of the ring in accordance with the speed of the film and engaged therewith by means of a spring-pressed ball-catch. The lens mount may be interchangeable. Specification 798,038 and Austrian Specification 200,910 are referred to.
Patent GB-751026-A (GB)
Title: Improvements relating to couplings for tubes and rods
IPC: F16L19/10
Filed: 1954-01-22
Abstract: 751,026. Pipe and rod joints. WURZBURGER, P. D. Jan. 22, 1954 [Jan. 23, 1953], No. 2010/54. Class 99(1). In a joint of the kind in which a securing and sealing ring E is deformed to grip a pipe or rod T by compression between coupling members such as a fitting B and nut N, the ring E, shown undeformed in Fig. 4, comprises a main body 10 having an internal, frontal cutting edge 12, and a tapered bore 13 diverging rearwardly, and comprises also a yieldable, forward extension 11 having a bore of greater diameter than the cutting edge, and adapted to engage the end face 2 of the fitting B. The ring has a conical surface 7 inclined at 25 to 35 degrees to the joint axis which is engaged by a correspondingly inclined shoulder 6 of the nut. The bore 13 is inclined at 10 to 20 degrees, and is surface hardened at 16. The front face 14 of the ring has a 2 degree rearward rake from the cutting edge. The extension 11 has a thickened forward end 8, its length is 3 to 6 times its thickness, and, when buckled by compression, engages the ridge R forced up by the cutting edge. A frontal shoulder 4 fits within a shoulder 3 on the fitting. The mean length of the ring body 10 is equal to its thickness. In a modification the tapered bore 13a, Fig. 7, is terminated by a cylindrical portion 13b which engages the pipe when the joint is tightened. The extension 11a is of uniform thickness, and its end is bevelled to form a cutting edge 20. Specification 737,556 is referred to.
Patent GB-301370-A (GB)
Title: Improvements in or relating to means for propelling vessels
IPC: B63H1/38
Filed: 1928-01-21
Abstract: 301,370. Broeck, B. J. van den, and Broeck, J. B. van den. Nov. 28, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Screw propellers; driving arrangements for screw propellers.-Ships are supported on propelling floats or submarines and torpedoes have rotary skin sections carrying propeller blades. The hull a, Fig. 1, is supported on floats b, c, through struts d or end brackets e. The floats have a helical rib f, g of opposite hand and are rotated by gearing such as a chain j and sprockets k. More than one pair of floats may be employed. The power plant may be placed inside the floats. For submarines n, Fig. 5, rotatable skin sections n', n<2>, have opposite pitched blades o, p.
Patent GB-197898-A (GB)
Title: Improved manufacture of alkali thiosulphate
IPC: C01B17/64
Filed: 1923-01-23
Abstract: Sulphuretted hydrogen is obtained by treating a solution of barium sulphide with an acid such as hydrochloric or carbonic acid or a similarly-acting substance, or by treating crude barium sulphide, mixed with water, with an acid such as dilute hydrochloric or nitric acid or a similarly-acting substance such as magnesium chloride.ALSO:Alkali thiosulphates are obtained by passing sulphuretted hydrogen into a solution of alkali bisulphite and sulphite.  The sulphuretted hydrogen is advantageously obtained by lixiviating crude barium sulphide and treating the solution with an acid such as carbonic or hydrochloric acid, or similarly acting substance; or by treating crude barium sulphide mixed with water with an acid such as dilute hydrochloric or nitric acid or a similarly acting substance such as magnesium chloride; the corresponding barium salts being obtained in either case.
Patent GB-1335874-A (GB)
Title: Vector generator
IPC: G09G1/08
Filed: 1971-01-15
Abstract: 1335874 Cathode-ray tube displays RCA CORPORATION 15 Jan 1971 [23 Jan 1970] 2093/71 Heading H4T An arrangement for producing a sequence of pairs of ramp voltages for use as X, Y deflection signals in the writing of vectors on a CRT display comprises as shown in Fig. 1 a generator 10 producing reference voltages and also positive- and negative-going ramp voltages of fixed amplitude, and deflection circuits 12, 14 which each receive two binary numbers representing end points of successive X or Y components of the vectors, and by use of comparison circuits combine the outputs of 10, suitably weighted, to produce the required deflection signal. Fig. 2 illustrates in more detail the units 6, 10 and 14. Successive X-values are passed on lines 30a-30f to bi-stables A-F, whence they are transferred on completion of the scan voltage changes, to A<SP>1</SP>-F<SP>1</SP>. The completion signal is obtained from comparator 88 which receives the ramp voltage derived by integrating amplifier 52 with CR network 62, 66. The ramp voltages + ST, - ST applied to D/A converter elements 44a &c. are also derived from 52; the AND gates 42a &c. provide on line 46 a ramp signal proportional to the difference between the X values held in A and A<SP>1</SP> combined with a static signal derived from their sum (the resistances in the connections to line 46 being inversely proportional to the weights of the binary orders). Fig. 4 illustrates an arrangement for producing, from the changes in X and Y, an approximation to the vector length as a signal S which may be used to obtain "constant velocity" line-drawing by applying it through switch 50 to the integrating network (this arrangement being indicated schematically in Fig. 1).
Patent GB-662776-A (GB)
Title: Improvements in or relating to dyestuff intermediates
Inventor: DOYLE FRANK PETER
IPC: C07D277/36
Filed: 1949-01-26
Abstract: The invention comprises substituted 2-thio5 - keto - tetrahydrothiazoles of the general formula <FORM:0662776/IV (b)/1> in which R is an alkyl, e.g. methyl, ethyl, propyl, butyl or stearyl group, a cyclohexyl group, or an aralkyl, e.g. benzyl or naphthylmethyl group.  They may be prepared by reacting an alkyl, cyclohexyl or aralkyl aminoacetamide with carbon disulphide, preferably at room temperature and in an aqueous medium in the presence of mild alkali.  Examples are given in which the 3-methyl-, 3-ethyl-, 3-cyclohexyl-, 3-stearyl-, 3-benzyl-, and 3-butyl-2-thio-5-keto-tetrahydrothiazoles are prepared in the presence of aqueous potassium carbonate.  Specification 662,775, [Group IV (c)], is referred to.
Patent GB-473942-A (GB)
Title: Improvements in and relating to ice-cream freezers
IPC: A23G9/10
Filed: 1937-01-25
Abstract: 473,942. Mixing-machines. KUNZI, H. Jan. 25, 1937, No. 2198. Convention date, Jan. 23, 1936. [Class 86] [Also in Group XIII] An ice-cream freezer having a rotary can embedded in ice and driven through gearing from a motor 6 is provided with a worm 11 having two threads one of which 12, Fig. 3a, makes point contact with the can and serves as a scraper, while the other 14, which is spaced from the can, presses the cream against the can. The worm is mounted on a shaft 16 rotated in the opposite direction to, and at a much lower speed than, the can through gearing 25 and a universal joint 23. The shaft 16 is supported in a holder 19 mounted on an horizontal axis 20, the movement of the holder being limited by a stop 22. The scraper thread is provided with an insert 13, Fig. 5, of cellulose or wood and maintained in contact with the can by a spring 21.
Patent GB-222369-A (GB)
Title: Improvements relating to arrangements for indicating the presence of conducting bodies
IPC: G01V3/10
Filed: 1924-01-28
Abstract: 222,369. Richter, R. H., Wetzel, M. H., and Wetzel, M. K..fan. 28, 1924. Locating conductors; inductances.-In a system for locating conductors in which the presence of conductors cause changes in the inductance of a coil with considerable magnetic leakage and thereby causes changes of frequency in a valve generator system, capacity effects are minimized by conductively enclosing or directly or capacitively earthing the inductance coil or by capacitively connecting its winding. The inductance coil L may be covered inside or outsid'e with a preferably divided strip of tin S, Fig. 1, which is earthed at one point. This tin strip may be replaced by a number of wire loops S, Fig. 3, which are connected together and to earth. The coil L may be earthed directly or through a condenser. The windings of the coil L may be connected by condensers C, Fig. 7, which may be capacitively earthed. Windings of an earthed wire subdivided so as not to consume energy may be wound between the windings of the coil L.
Patent GB-731975-A (GB)
Title: Improvements in and relating to typebar mechanism for typewriters, accounting or like machines
IPC: B41J7/02
Filed: 1953-01-26
Abstract: 731,975. Typewriters. RHEINMETALL. AKT.-GES. Jan. 26, 1953 [May 16, 1952], No. 2265/53. Class 100 (4). Type-actions.-A type-action for a typewriter, accounting or like machine includes an intermediate lever 15 which is guided in slots 20 in a comb-like sector 18, the slots 20 being arranged to form radii of a circle. The ends of the levers 15 are bent into planes parallel to each other and at right angles to the axis of the platen. Each key-lever 1 is mounted on parallel links 2, 3 pivoted on rods 4, 5 and, by an extension 12 and short link 13, is connected to its corresponding intermediate lever 15.
Patent GB-417908-A (GB)
Title: Methods and devices for forming a plurality of warp threads
IPC: D04B17/00
Filed: 1934-01-23
Abstract: 417,908. Darning. MARGULIES, (nÚe LOMNITZ), A., 39, Avenue de Friedland, Paris. Jan. 23, 1934, No. 2298. Convention date, Jan. 23, 1933. [Class 112.] The warp threads for darning a hole are formed by threading a yarn d through two series of hooks or eyes b<1>, b<2> and then pulling apart the supports a.
Patent GB-648788-A (GB)
Title: Means for controlling the operation of a diecasting machine for the mass production of diecastings
IPC: G05B19/07
Filed: 1948-01-26
Abstract: 648,788. Casting-machines. LANDIS & GYR SOC. ANON. Jan. 26, 1948, No. 2350. Convention date, Jan. 27, 1947. Drawings to Specification. [Class 83 (i)] An electrically-controlled die-casting machine has its electric control system arranged so that, instead of the normal continuous automatic production of castings, another sequence can be introduced whereby at least some control is left to the operator. In the example described the die is opened and closed and the metal-injecting plunger advanced and returned by solenoids and the pauses between these movements is determined by two time-switches of known type. A press-button switch is provided for starting the sequence and a two-way switch, which in one position gives continuous operation and in the other stops the machine after one casting has been ejected. A multi-pole switch is provided which, when thrown over, stops the sequence after each movement of the machine, the sequence being restarted by press-buttons. A second multiple switch is provided such that, when this also is thrown over, the various movements of the machine may be effected in any order desired by pressing the appropriate switch. The machine is also provided with a protective cover connected to a switch to stop the machine if the cover is raised. Another switch stops the machine if the ejector fails to remove the casting. A hand-operated switch is also provided to bring the machine to rest with the dies open and the plunger in withdrawn position.
Patent GB-874877-A (GB)
Title: Metal salts of organic dithiophosphates and lubricating compositions containing them
Inventor: BURNOP VICTOR CHARLES ERNEST
IPC: C10M137/10
Filed: 1959-01-22
Abstract: The invention comprises compounds having the general formula:- <FORM:0874877/IV (b)/1> wherein R1 is a C2-C24 alkyl radical, R2 is a C2-C24 alkyl radical in which one or more of the hydrogen atoms are replaced by chlorine atoms and M is zinc or cadmium.  They may be obtained by reacting equimolar proportions of a C2-C24 alkanol and a C2-C24 chlorine-containing alkanol with phosphorus pentasulphide at elevated temperature and reacting the product thus obtained with the oxide, hydroxide or carbonate of zinc or cadmium.  Suitable chlorine-containing alkanols are ethylene chlorhydrin, di- or trichlorethanol, 2-chloropropanol-1, 2,2,3-trichlorobutanol-1 and 5-chloro-pentanol-1.  The products may be complexed with amines, preferably with tertiary alkyl primary amines.  Examples are given for the production of (1) zinc chloroethyloctyl dithiophosphate, and (2) zinc chloroethyl ceto-stearyl dithiophosphate and of the complex of (1) with a mixture of isomeric tertiary alkyl primary amines in which the alkyl groups contain from 16 to 24 carbon atoms.  The products are useful as additives for lubricating oils (see Group III).ALSO:A lubricating composition comprises a major proportion by weight of a lubricating oil containing a minor proportion by weight of a dithiophosphate of the formula:- <FORM:0874877/III/1> where R1 is a C2-C24 alkyl radical, R2 is a C2-C24 alkyl radical in which one or more of the hydrogen atoms are replaced by chlorine atoms and M is zinc or cadmium (see Group IV(b)) or of a complex of said dithiophosphate with an amine, especially a tertiary alkyl primary amine.  The lubricating oil may be a mineral oil or a synthetic oil which may be a polymer oil or an ester oil, e.g. a dicarboxylic ester or ester of a phosphorus acid.  Other aditives such as antioxidants, and detergent or viscosity improving additives may also be present. Specified additives are (1) zinc chloroethyl dithiophosphate and a complex thereof with a mixture of isomeric tertiary C16-C24 alkyl primary amines and (2) zinc chloroethyl ceto-stearyl dithiophosphate.
Patent GB-883752-A (GB)
Title: Nuclear reactors
IPC: G21C1/12
Filed: 1946-01-25
Abstract: 883,752. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 25, 1946 [Jan. 23, 1945], No. 2590/46. Drawings to Specification. Class 39(4) The subject-matter of this Specification is contained in Specification 833,623 but the claims differ.
Patent GB-1011782-A (GB)
Title: Improvements in or relating to bottle capping apparatus
Inventor: ARBER ROWLAND SACKVILLE PRESTO
IPC: B67B3/00
Filed: 1963-01-21
Abstract: 1,011,782. Applying sterilized closures. U.D.E.C. Ltd. March 12, 1964 [Jan. 21, 1963], No. 2610/63. Heading B8T. In a bottle capping apparatus the caps are sterilized by heat before entering the capapplying mechanism, the cap-applying mechanism, the cap applying mechanism and the bottle - supporting mechanism being disposed within an air-tight casing containing a sterile atmosphere. A mechanical feeding device 40 feeds crown caps singly and successively from a hopper 36 into a metal shoot 38. A rotatable burner tube 58 is arranged so that its burner orifices normally are directed towards said shoot, but should the caps become jammed in the shoot rotation is imparted to the tube through a linkage 61, Fig. 2, from a solenoid motor 63. The motor is controlled by a switch mechanism actuated by a sensing device comprising a light source 70 which shines a beam of light through the shoot so that a photo-electric cell receives a fluttering light signal as long as the caps are travelling through the shoot. In addition to the burner tube, sterilizing liquid may be introduced into the shoot so that the caps are flooded before reaching the heating zone. Alternatively, sterilizing liquid may be used without the burner. To prevent a cap from being fed by the shoot to the cap-applying mechanism should no bottle be on a bottle support 22, the curved portion 54 of each shoot is pivotally connected at 97 to the portion above it and means are provided for swinging the extremity of the portion 55 out of the path of a finger 81 which normally sweep through a groove in a scoop 64 and pushes caps successively up into holders 82. The means are conditioned by a sensing button arranged in a star-wheel which feeds previously filled bottles on to the rotating supports 22, the button being depressed against the action of a spring when a bottle is present. A bottle is centralized with respect to the cap applying mechanism by means of two half collars 9a. On the bottle being raised by the support 22 the cap is forced upwards against a spring 83 into a multisegment ring 84 having an internal conical face which contracts the corrugated cap rim inwardly over the bottle neck. The burner and greater part of the shoot are disposed outside the air-tight casing, the lower part of the shoot extending in air-tight manner through the casing wall.
Patent GB-673389-A (GB)
Title: Improvements in or relating to friction wheel lighters
IPC: F23Q2/46
Filed: 1950-02-01
Abstract: 673,389. Friction lighters. RACEK, A., and RAGANITSCH, J. Feb. 1, 1950 [Feb. 2, 1949], No. 2631/50. Class 75(iii) The friction wheel of a lighter has a protecting wall 9 which covers that part of the friction wheel circumference adjacent the flame 8 leaving the remainder uncovered for actuation of the wheel. The protecting wall 9 is secured to two side walls 10 attached to the flint tube 3 or alternatively, Fig. 2 (not shown), is secured only to a single side wall which though rotatable relatively to the spindle 2 is provided with lugs which embrace the flint tube 3 to hold the protecting wall stationary. The lugs may be attached to the lighter body and the spark passage 11 may be formed as a convergent nozzle.
Patent GB-1515493-A (GB)
Title: Superconductive excitation winding
IPC: H02K55/04
Filed: 1977-01-21
Abstract: 1515493 Windings for dynamo-electric machines KRAFTWERK UNION AG 21 Jan 1977 [12 Feb 1976] 02634/77 Heading H2A An electrical machine motor somewhat similar to that disclosed in Patent Specification No. 1,477,104 includes a superconductive excitation winding disposed in longitudinal slots separated by teeth 6, the conductors 4 at the bottom of the slot having a greater cross-section than those conductors 5 at the top. As shown two layers of conductors are separated by insulating plates 7, 8, and a wedge 9, the plates having channels 10 for the passage of liquid helium. In manufacture the windings are vacuum impregnated and cured, and during this process a steel plate, subsequently removed, takes the place of the members 7, 8, 9.
Patent GB-940780-A (GB)
Title: Process for the manufacture of quinacridone dyestuffs
IPC: C08K5/00
Filed: 1960-01-25
Abstract: Linear quinacridones are made by condensing a 2:5-diarylamino-terephthalic acid which may be substituted in the aromatic nucleus of the arylamino radicals, or an ester thereof, with anhydrous aluminium chloride or anhydrous titanium chloride at a temperature within the range of about 130 DEG C. and about 200 DEG C. in the presence or absence of an inert diluent, such as mono-, di- or tri-chlorobenzene or tetrachlorethane. Fluxing agents such as sodium or potassium chlorides or sodium fluoride may be used and melt additives such as sulphur dioxide, pyridine, dimethylformamide or urea may be present.  Examples are given.