baber/WOPTO huggingface dataset:
Patent GB-1071805-A (GB)
Title: Halogenated pyrazolo steroids and their preparation
Inventor: HIRSCHMANN RALPH FRANZ
IPC: C07J71/00
Filed: 1964-07-09
Abstract: Novel steroids of the formulae <FORM:1071805/C2/1> <FORM:1071805/C2/2> (wherein X is a halogen or CF3; R is H or methyl; R1 is H, alkyl, cycloalkyl, aryl, aralkyl, acyl, hydroxyalkyl, or heterocyclic, or halo-, alkyl-, alkoxy- or nitro-substituted aryl; and R11 is hydrogen, alkyl or alkanoyl) are prepared by reacting the corresponding 2-hydroxymethylene- or 2-alkoxymethylene-D 4-3-keto-steroids with hydrazine or an appropriately substituted hydrazine.  The N-acyl compounds are prepared by subsequent acylation.  Whether the product is a 11- or 21-isomer or a mixture thereof depends on whether the starting steroid is a 2-hydroxymethylene or a 2-alkoxymethylene compound and on the nature of the hydrazine substitution.  N-alkyl products may also be prepared by direct N-alkylation. 17b -ols may be converted to their ester by standard procedures.  2 - Hydroxymethylene - D 4 - 3 - ones used as starting materials are prepared from the corresponding 2-unsubstituted steroids and alkyl formates in the presence of sodium hydride. With alkanols they give the 2-alkoxymethylene compounds. 17a  - Haloethynyl - 4 - androsten - 17b  - ol - 3-ones are prepared by halogenating 17a -ethynyl-5 - androstene - 3b ,17b  - diol - bis - tetrahydropyranyl ether (from the diol and dihydropyran) to give 17a -haloethynyl-5-androstene-3b ,17b -diol-bis -tetrahydropyranyl ethers, hydrolysing these to the corresponding free diols and oxidizing these.  17a  - Haloethynyl - 17b  - hydroxy - 19 - nor-4-androsten-3-ones are prepared by hydrolysis of the corresponding 17a -haloethynyl-17b -hydroxy - 3 - methoxy - 2,5(10) - androstadienes (prepared from the 17-ones and 1,2-dichloroethylene; 1,2-dibromoethylene; and 1-chloro-2-fluoroethylene, the last-named reagent giving a mixture of chloro- and fluoro-ethynyl products which are separated by chromatography). The corresponding 17a -trifluoropropynyl compounds are prepared similarly, using trifluoropropynyl magnesium bromide.  17a  - Trifluoropropynyl - 17b - hydroxy - 4-androsten-3-one is prepared by oxidizing 3-ethylenedioxy - 5 - androsten - 17b  - ol (prepared from the D 4-3-one) to the 17-one, converting this to the 17a -trifluoropropynyl-17b -ol and hydrolysing this.  The pyrazolo-steroids of the invention, which are stated to be orally and parenterally active progestational and estrogenic agents and agents which reduce the level of blood cholesterol, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1261120-A (GB)
Title: Improvements in pile cutting knives in looms
Inventor: WRIGHT REGINALD JAMES
IPC: D03D39/02
Filed: 1969-06-05
Abstract: 1,261,120. Pile fabric looms. R. J. WRIGHT. 5 June, 1970 [5 June, 1969], No. 28539/69. Heading D1E. A knife 13 is held in the knife box 10 of an Axminster loom by a spring plate 18 tensioned by quick-release means comprising a manually operable cam lever 32. The lever 32 has a cam face 36 engaging the top of plate 18 and engages at one end 36 under the head of an adjustable screw 25 and at the other end under the end of a U-shaped bracket 27, the ends 21, 16, of the spring resting respectively on the base of box 10 and the portion 12 of the knife 13. To release the knife, the end of lever 32 is depressed and moved sideways from beneath the bracket 27. In a modification, Fig. 7 (not shown) the spring 18 is held at its mid portion beneath a clamp 45 and tensioned by a cam 42 actuated by a lever 43.
Patent GB-665045-A (GB)
Title: An improved cigarette extinguisher and receptacle
IPC: A24F13/18
Filed: 1949-11-08
Abstract: 665,045. Attaching articles to wearing apparel. BENNETT, D. Nov. 8, 1949, No. 28552/49. Drawings to Specification. Class 43. [Also in Groups VI and XVII] A cigarette extinguisher and container (see Groups VI and XVII) may have a clip, pin or other suitable fastening for securing it to wearing apparel.
Patent GB-1110585-A (GB)
Title: Improvements in or relating to cartons
IPC: B65D5/42
Filed: 1965-07-06
Abstract: 1,110,585. Cartons. FINN INDUSTRIES. 6 July, 1965 [16 Nov., 1964], No. 28596/65. Headings B8F and B8P. An easily removable strip 12 carrying advertizing matter etc. is fastened at one end to a tear flap 30 and at its other end to the sealing flap 28, the intermediate portion of the strip remaining unattached to the carton wall. The strip is removed without marring the carton by tearing off the flap 30 to detach one of the ends of the strip, the other end being torn, preferably along perforations, along the corner of the carton at the sealing flap fold line 16. In a modification, Figs. 6-9 (not shown) the strip is secured at the ends only to top and bottom closure flaps, passing across the top and down one side of the carton.
Patent GB-732526-A (GB)
Title: Improvements in or relating to means for cleaning and sterilizing dental instruments
IPC: A61L2/26
Filed: 1953-10-16
Abstract: 732,526. Sterilizers. HUBER, K. Oct. 16, 1953, No. 28642/53. Class 81(1). In a device for cleaning and sterilizing hand and angle tools for dental drilling machines, the vessel 1 containing the cleaning and sterilizing solutions is provided with a readily removable closure cover 2, with a housing 3 thereon in which a gear system 6 is arranged capable of being coupled with a driving device 4, preferably with the drilling machine, through which gear system the mechanism of one or more hand and angle tools immersed in the solution is driven.
Patent GB-282020-A (GB)
Title: High voltage system and apparatus for use particularly with x-ray tubes
IPC: H05G1/12
Filed: 1927-10-27
Abstract: 282,020. Smith, F. S. Oct. 27, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 8, 1927]. R÷ntgen-ray apparatus.-In supplying a R÷ntgen-ray tube with high tension unidirectional current from an alternating current source by means of condensers charged during alternate half cycles through a valve means are provided for ensuring that the valve is not subjected to the combined voltage of the source and the charged condenser during the half cycle in which that condenser is not being charged. The raytube 10, the cathode 11 of which is heated by current from a transformer 13, is supplied with current at twice the voltage of the source from a pair of series-connected condensers 14, 15 which are alternately charged during opposite half cycles, each to the voltage of the supply source. Supply is effected through a transformer 20, a synchronously-rotated switch 21, and a thermionic valve 22 the cathode of which is heated bv current from a transformer 36. The switch 21 comprises fixed spherical contacts 28 - - 31, and rotating contacts 23, 24 mounted on insulating shafts 26, 27 driven by a synchronous motor 25. The radially-projecting switch arms are of stream-line section to reduce noise, and their extremities are arcuate in the plane of rotation and are so dimensioned in relation to the fixed contacts as to ensure that the condensers 14, 15 are charged to substantially the voltage of the supply transformer 20. The radii of curvature of the contacts is so chosen as to avoid corona, and to provide such capacity in relation to that of the valve 22 as to cause sufficient potential drop to ensure that the valve is not subjected to excess voltage during either half cycle due to the combined voltage of the supply transformer and the condenser charged during the previous half cycle.
Patent GB-900093-A (GB)
Title: Improvements in processes of photographic reproduction
Inventor: WILLIAMS LESLIE ALFRED
IPC: G03C8/24
Filed: 1958-09-05
Abstract: 900,093. Photographic transfer-reversal procedures. KODAK Ltd. Sept. 2, 1959 [Sept. 5, 1958], No. 28664/58. Class 98 (2). A 5 : 6 - dihydro - 4 - oxo - 1 : 3 - thiazine - 2 - thiol of formula where R 1 , R 2 , R 3 , R 4  may each be hydrogen or an alkyl group is used in either developer or receiving layer to result in a positive image of increased blackness. If used in the emulsion layer it is likely to produce fog although still improving the tone of the positive image. Six examples describe use of the above thiazine and its 6-methyl and 5-methyl derivatives, three of them having the thiazines in nuclei- and hypo-containing receiving layers and three in the developers for use with such receiving layers.
Patent GB-1237709-A (GB)
Title: Coupling device
Inventor: CULVER PERRIN C
IPC: H01R13/623
Filed: 1968-06-17
Abstract: 1,237,709. Stud and socket fastenings. BOWTHORPE-HELLERMAN Ltd. 17 June, 1968 [19 June, 1967], No. 28739/68. Heading E2B. [Also in Divisions F2 and H2] The two parts of a two-part coupling device are engaged in bayonet fashion, only axial relative movement between the parts being employed. As shown, Fig. 6, when a male part 10 is pushed into a female part 14, bayonet pins 20 on the former enter boomerang-shaped slots 35 in a rotatable sleeve 34 captive on the female part. Continued axial pressure on male part 10 causes oblique edges 38 of slots 35 to ride along pins 20, so rotating sleeve 34 to the position shown in Fig. 7. At the same time, further pins 51, which extend inwardly from an outer cylindrical actuating member 50 on female part 14 to engage further boomerangshaped slots 36 in sleeve 34, ride along edges 45 of slots 36. Actuating member 50 is biased by an undulate spring 55 towards the forward mating end of female part 14. While pins 51 abut edges 45 of slots 36, spring 55 is held in compression. When pins 51 reach the inner ends of edges 45 (Fig. 7), spring 55 is released and pushes the actuating member 50 forward into the position shown in Fig. 8; this, by the action of pins 51 on oblique edges 48 of slots 36, continues the rotation of sleeve 34, and completes the bayonet-locking of pins 20 in slots 35. To release the coupling, actuating member 50 is first pulled back to release the bayonet-lock. The invention is described with particular reference to an electrical plug and socket connector (Fig. 2, not shown), and may also be used in fasteners. An axial ridge on male part 10 enters a complementary slot in female part 14 to polarize the parts.
Patent GB-919530-A (GB)
Title: A process for the production of an amino acid complex
Inventor: CASTAIGNE ALBERT
IPC: C07K1/32
Filed: 1959-08-21
Abstract: In a process for preparing an a -amino monocarboxylic acid complex a solution of a mixture of a -amino monocarboxylic acids in an inert solvent therefor is heated at 50 DEG -100 DEG C. in the presence of an alkali metal salt of a monobasic acid, especially sodium chloride or sodium gluconate.  A solid product is isolated by removing all the water from the mixture.  The a -amino monocarboxylic acid used may be obtained by hydrolysis of a protein and the mixture preferably contains at least two of the following: glycine, alanine, leucine, iso-leucine and serine.
Patent GB-964577-A (GB)
Title: Process for working up thermoplastic masses of chlorinecontaining polymers
IPC: C08L27/06
Filed: 1960-08-19
Abstract: In the working up of thermoplastic masses comprising polymers or copolymers of vinyl chloride, there is used as lubricant a product obtainable by oxidising a high molecular paraffinic hydrocarbon having a melting point above 60 DEG C. with oxygen or an oxygen-containing gas in known manner to an acid number in the range 20 to 120 and wholly or partially saponifying the carboxylic acid groups of the oxidation product with at least one compound of at least one metal of Group II and/or Group III of the Periodic Table, the metal component or components being present in the saponified product in a proportion of at least 0.5% by weight, calculated as metal hydroxide. Calcium is the preferred metal; magnesium, aluminium and cadmium are also specified. Preferably 2-10%, e.g. 4-6% of metal, as hydroxide, is present and preferably not less than one third of the carboxylic groups are saponified. The vinyl chloride may be copolymerized with vinylidene chloride or vinyl esters. Specification 315,813 is referred to.
Patent GB-500938-A (GB)
Title: Method of cleaning out slag or cinder pockets of open hearth combustion furnaces
IPC: F27D25/00
Filed: 1938-10-05
Abstract: 500,938. Removing slag. CARDOX (GREAT BRITAIN), Ltd. Oct. 5, 1938, No. 28881. Convention date, Oct. 5, 1937. [Class 51 (ii)] Expanding highly compressed gas obtained from cartridges 18 containing liquid. CO2 inserted in drill holes 17 is liberated into the cracks of and used to break up the slag deposit 15 in an open hearth furnace slag pocket. Removal of a false brick lining surrounding the deposit gives room for expansion of the slag on breaking up. Water in the drill holes produces the desirable minute cracks in the hot slag and keeps the cartridge cool before its blowing out by the gasefication caused by an electrically ignited chemical heater unit, the gas escaping from lateral base holes.
Patent GB-162017-A (GB)
Title: Improvements in printing machines
IPC: B41F5/02
Filed: 1919-11-21
Abstract: 162,017. Hoe & Co., Ltd., R., (Hoe & Co., R.). Nov. 21, 1919. Creasing or scoring.-In a printing-machine, cutting, creasing, or scoring devices, carried by a movable support, co-operate with the delivery mechanism to cut, crease, or score the printed sheets and means are provided for throwing the support out of operation without interrupting the drive of the printing couple. As shown, the cutting or scoring devices 9 are mounted on a reciprocating bed 10 co-operating with a sheet delivery cylinder 11. The main shaft 16 driven by a belt 18 from an electric motor 20, carries a gear 21 engaging a spur gear 22 loose on a short shaft 23. A spur gear 27 secured to the gear 22 drives the cylinder 11 through the gears 28, 29 and the gear 29 drives the transfer cylinder 14 and impression cylinder 6 through the gears 30, 31. The gear 22 is formed with a clutch 22<1> to drive the shaft 23 when desired through a slidable clutch 24 fast on the shaft 23 and the shaft 23 is connected by a universal joint 39 to a shaft 37 carrying a gear 36 engaging a rack 33 on a bracket 34 secured to the bed 10. The gear 36 alternately engages the upper and lower surface of the rack 33, the shaft 37 oscillating in a guide 40. A bearer disc 44 on the gear 36 may run on a guide 43.
Patent GB-387295-A (GB)
Title: Improvements in malleable tubes and similar receptacles adapted to contain thick or semi-liquid materials
IPC: B65D35/20
Filed: 1932-10-17
Abstract: 387,295. Collapsable tubes or containers. LAURENT, A., Villa Beau-Bitt- Parame, Ile et Vilaine, France. Oct. 17, 1932, No. 29043. Convention date, Oct. 22, 1931. [Class 11.] A spring is inserted into a collapsable tube or container, either before or after filling, so as to exert pressure on the walls and to expand the tube again after the finger pressure has been relaxed. Any excess of material expressed is thereby drawn back into the tube. The spring may consist of a folded elastic blade 3, Fig. 1, of metal, celluloid, &c., or two blades connected by a rivet, or a folded blade 3<1>, Fig. 5, between the arms of which is interposed a second elastic blade 8. A spiral or coiled spring may be used.
Patent GB-752434-A (GB)
Title: Improvements in or relating to devices for responding selectively to energy levels of modulated pulses in electrical pulse trains
IPC: H04B1/16
Filed: 1954-10-08
Abstract: 752,434. Pulse discriminating circuits. TELEFONAKTIEBOLAGET L. M. ERICSSON. Oct. 8, 1954 [Oct. 8, 1953], No. 29075/54. Class 40 (6). Fig. 1 shows a pulse width discriminating circuit in which the pulses applied at input 1, 2 comprise positive-going duration modulated pulses 11, Fig. 2, such as are used in a. pulse communication system interspersed with signal pulses 13, such as calling or dialling pulses, which are of longer duration. Diode D2 is normally held conductive by a negative bias applied at terminal 3 so that on application of a pulse such as 11, capacitor C1 is charged for the duration of the pulse and subsequently discharges via resistor R1 and diode D2 as shown at 12, Fig. 2. When however a signal pulse 13 of longer duration is applied capacitor C1 charges via diode D1 to a higher voltage E2 which exceeds the negative bias voltage at terminal 3 so that at the termination of the charging cycle diode D2 is non-conductive and capacitor C1 discharges through resistors R1 and R2. As the time constant of this discharge path is longer than that of the path via resistor R1 and diode D2 a waveform such as 14 is produced at time t5 diode D2 conducts again. The average current flow through tube 4 is considerably greater during the longer signal pulses 13 and relay 6 operates only during this higher average current condition. Intelligence in the shorter pulses 11 is extracted via low-pass filter 8 at terminals 9, 10. In a modification, Fig. 3 (not shown), diode D1 is replaced by an inductor which functions as a storage element in place of capacitor C1 which is omitted.
Patent GB-470311-A (GB)
Title: Improvements in or relating to gyroscopic apparatus
IPC: G01C19/38
Filed: 1936-10-26
Abstract: 470,311. Gyroscopic apparatus. ASKANIA WERKE AKT.-GES. VORM. CENTRAL WERKSTATT DESSAU UND C. BAMBERGFRIEDENAU. Oct. 26, 1936, No. 29111. Convention date, Oct. 26, 1935. [Class 97 (iii)] Precession of a gyroscope with three degrees of freedom is effected by a field of force extending symmetrically round and parallel to the axis of precession and acting on a member which transmits the turning moment to the appropriate axis of the gyro. The field of force may be provided by the electric current in a coil or by a stream of fluid. Fig. 4 shows a rotor 202 spinning on a horizontal axis 201 in a ring 203 pivoting on a horizontal axis 206 in a ring 208 pivoting in turn on the vertical axis 209, 210. Precession about the axis 209, 210, is effected by energizing a coil 211, which is concentric with the axis 209, 210, and exerts a torque on a magnet 204 fixed to the ring 203. A second oppositely directed magnet 205 may be secured to the other side of the ring 203 to counteract external influences. In a modification two magnets are fixed parallel to the spin axis to the rotor casing of a gyro-vertical and two vertical coils at right angles to each other are provided around the gyro to effect precession about one or other of the two horizontal axes about which the rotor casing pivots. Fig. 5 shows a rotor 302 spinning about a horizontal axis 301 in a ring 303 which pivots about a horizontal axis 306, 307 in a vertical ring 308. To cause precession about the vertical axis 309 of the ring 308, fluid under pressure is supplied to one or other of two concentric rings of nozzles 320, 321 and impinges on one or other of two vanes 304, 305 fixed to the ring 303, causing the required torque about the axis 306, 307.
Patent GB-728042-A (GB)
Title: Telescopic shock absorber
IPC: F16F9/19
Filed: 1950-11-29
Abstract: 728,042. Hydraulic shock-absorbers. GAUNT, J. G. (Procedo Ges.). Nov. 29, 1950, No. 29279/50. Class 108 (3). A telescopic shock-absorber comprises a cylinder divided into chambers 1, 28 by a piston 2 having valve-controlled openings e24, 25, the chamber 28 being resiliently bounded, and the chamber 1 being connected with a space 22 coaxial with the cylinder and traversed by the piston rod 3. As shown, the chamber 28 is bounded by a spring-loaded piston 29. The openings 24 are controlled by a low-pressure valve 31, and the openings 25 are controlled by a high pressure valve 26. The space 22 is bounded by a packing 21, having lips which are pressed against the piston rod 3 by the action of a spring 23 and a washer 20. A spring (not shown) of greater stiffness than the spring 23 may act on the other side of the packing 21.
Patent GB-464827-A (GB)
Title: The manufacture of poly-azodyestuffs
IPC: C09B35/36
Filed: 1935-10-23
Abstract: Polyazo dyes are made by diazotizing aminoazo dyes of the type <FORM:0464827/IV/1> (B = the residue of a coupling component which may be alkylated), coupling with a middle component which contains in o-position to the further diazotizable amino group a group capable of being metallized, further diazotizing and finally coupling with a component which contains in o-position to the coupling position a group capable of being metallized and which may be further diazotizable and capable of further combination.  The following dyestuffs are described in examples: (1) the methylated and reduced monoazo dye, 4-nitro-2 : 2<1>-disulphostilbene-4<1>-azophenol --> 1-amino-2-naphtholethylether - 6 - sulphonic acid --> N - m - carboxyphenyl J acid (bluish green on cotton, fast yellowish green when coppered); (2) 1-acetylamino-8-naphthol-4-sulphonic acid is used as final component in (1).  Other starting aminoazo dyes are those obtained by reducing 4-nitro-4<1>-aminostilbene-2 : 2<1>-disulphonic acid --> salicylic acid, arylamides of acetoacetic acid or pyrazolones. Specifications 403,105 and 404,613 are referred to.
Patent GB-464776-A (GB)
Title: Improvements in or relating to insecticidal compositions
IPC: A01N47/46
Filed: 1935-10-23
Abstract: Fly spray compositions consist of kerosene or like solutions, or aqueous emulsions, of decyl thiocyanate or isothiocyanate or of mixtures of alkyl thiocyanates or isothiocyanates having a mean molecular weight above 185 but below 213 and wherein the alkyl radicals contain at least 6 carbon atoms.  Reference is made to Specification 431,064 which describes the use of various higher alkyl thiocyanates and isothiocyanates as insecticides, but it is stated that the decyl compound, or the equivalent mixtures, used according to the present invention combine high paralytic effect with high killing effect.  According to examples the spray may consist of a three per cent solution of decyl thiocyanate in a specified kerosene fraction; of an aqueous emulsion prepared by adding a solution of oleic acid in decyl thiocyanate to a mixture of water and triethanolamine, and homozenizing the resulting emulsion; or of an homogenized emulsion of decyl thiocyanate in an aqueous solution of gum tragacanth.  In these examples the decyl compound may be replaced by an equimolecular mixture of octyl and lauryl thiocyanates.
Patent GB-646168-A (GB)
Title: Improvements in domestic cookers
IPC: F24C15/12
Filed: 1947-11-05
Abstract: 646,168. Plate racks. TURLEY & WILLIAMS, Ltd., SMITH, C. D., and OTTON, D. H. Nov. 5, 1947, No. 29452. [Class 126] A domestic cooker is provided with a slotted plate rack supported by an inverted U-shaped tubular member so that it forms a back plate when in vertical position, a plate-supporting rod being mounted on the slotted back plate by inwardly directed deformations, the sides of the supporting frame having inwardly directed fixed pegs which may be selectively engaged by a pair of notched gravity catches which are interconnected by a manipulative wire rod and pivoted directly to the slotted back plate. Portions 11a of the rod 11 provided beneath the slotted rack 9 are held by deformations 9b in the side flanges 9a of the plate rack 9 and end portions 11b of the rod 11 form pivots about which the plate rack may be turned. The rack is held in horizontal or vertical position by gravity catches 12, the notches of which engage pegs 13 on the U-shaped tubular supporting member 8. A manipulative rod 14 connects the free ends of the gravity catches 12. Specification 646,169, [Group VI], is referred to.