baber/WOPTO huggingface dataset:
Patent GB-1095715-A (GB)
Title: 16-fluoro-androstene and estrene compounds
IPC: C07J75/00
Filed: 1965-03-01
Abstract: Novel steroids of the formulae <FORM:1095715/C2/1> <FORM:1095715/C2/2> <FORM:1095715/C2/3> (wherein R is H or CH3; R1 and R2 are H or acyl; R3 is acyl or a hydrocarbon; Y is trifluorovinyl, trifluoropropynyl or haloethynyl; and X is H, F or Cl) are prepared from 1 6a -fluoro-3b  - hydroxy - androst - 5 - en - 17 - one (or the corresponding estrene) as follows: reaction with a haloethyne (preferably formed in situ from methyl lithium and a 1,2-dihaloethylene), trifluoropropyne previously treated with ethyl magnesium bromide, or trifluorovinyl magnesium bromide gives a mixture of the 17a - and 17b  - isomers of 16a  - fluoro - 17 - Y - androst-5-ene-3b ,17-diol (which isomers may be separated if desired, or further processed as a mixture), these are oxidized to the 3-keto-D 5-compounds, these are isomerized to the 3-keto-D 4-compounds and these, when required, are subjected to the following processes: (1) the 3-keto compounds are converted to 3-enol ethers, which may be transetherified, the enol ethers are reacted with perchloryl fluoride and the products are epimerized with acid to give 6a  - fluoro - 3 - keto - D 4 - compounds; (2) the 3-enol ethers, prepared as in (1), are acylated in the 17-position and the products are reacted with N-chlorosuccinimide and isomerized to give 6a  - chloro - 3 - keto - D 4 - compounds; (3) the products of (1) and (2) may be converted to enol ethers; (4) the 17-acylates of (2) may be hydrolysed to 17-ols; (5) the 3-enol ethers are reacted with N-bromo-succinimide to give 6b -bromo-D 4-3-ones, these are dehydrobrominated to D 4,6-3-ones, and these can be converted to 6a ,7a -epoxides and these treated with HCl to give 6-chloro-D 4,6-3-ones; (6) the D 4-3-ones are treated with a quinone to give D 4,6-3-ones; (7) D 4-17b -ol-3-ones are acylated to give a mixture of 17-acylates and their 3-enol acylates which may be separated chromatographically; (8) D 4- and D 4,6-3-ones are stereospecifically reduced to 3b -ols which may be acylated preferentially. An alternative method for the preparation of the 6-dehalo-compounds of the invention involves protecting the 3-keto group in 17b -hydroxy-androst-4-en-3-one or the 19-nor compound, e.g. by conversion to 3-ethylene-dioxy - androst - 5 - en - 17b  - ol or 3 - ethylene-dioxy - 19 - nor - androst - 5 or 5(10) - en - 17b -ol, converting to the 17-ones, reacting with a dialkyloxalate to give the 16-alkoxalyl compounds reacting these with perchloryl fluoride to give the 16a  - fluoro - 16b  - alkoxalyl compounds, treating with an alkaline reagent to give the 16a -fluoro compounds (with some 16b -fluoro which may be isomerized with a base), converting these to the 17a -Y-17b -OH compounds by the methods indicated above, and removing the 3-keto protecting group.  The steroids of the invention, which are progestational agents, may be made up into pharmaceutical or veterinary compositions.
Patent GB-804340-A (GB)
Title: Tape controlling gate mechanism for use in sound recording and reproducing apparatus
Inventor: LYON WILLIAM HENRY
IPC: G11B15/29
Filed: 1957-03-15
Abstract: 804,340. Magnetic recording and reproducing apparatus. SOUND SCRIBER CORPORATION. March 15, 1957, No. 8659/57. Class 40 (2). In magnetic recording-reproducing apparatus wherein a movable block presses an advancing wide tape on to transducer heads spaced round a rotating turntable, e.g. as in Specification 789,554, resilient metallic means is provided on the block to ensure a substantially constant tape-to-head pressure. As shown, pillars 41, 42 depending from the block carry a rigid plate (not shown) from which a plate 22 is suspended by hooks 33, 35 and pressed downwardly by a pair of leaf springs; the plate 22 consists of two rectangular flat sections 23, 24 cemented to a laminated reinforced rubber strip 25, to the under side of which, are cemented stainless steel segments 26 ... 29 spaced to allow a cross gap 32 (permitting central flexing so that equal pressures will be applied to three recording heads simultaneously) and longitudinal curved gaps 30, 31 following the path of the heads (so that the tape is held in intimate contact with the heads without a solid backing opposite their track. Specifications 797,619 and 801,639 also are referred to.
Patent GB-912389-A (GB)
Title: Improvements relating to cleaning compositions
Inventor: HENLEY ERIC DOUGLAS
IPC: C11D7/08
Filed: 1960-03-11
Abstract: A cleaning composition which is especially useful for cleaning railway carriages comprises (a) sulphamic acid, and (b) a C10-14-kerylbenzene sulphonate.  A preferred composition, which is used as a 5% w/v solution in water, consists of 92,2% sulphamic acid, 7,25% kerylbenzene sulphonate, 0,3% of a nonylphenolethylene oxide condensate, and 0,25% nonanol. Specification 832,105 is referred to.ALSO:A composition which is useful for removing rust and scale from steel sheet comprises (a) sulphamic acid, and (b) a C10-14-kerylbenzene sulphonate.  A preferred composition, which is used as a 5% w/v. solution in water, consists of 92.2% sulphamic acid, 7.25% kerylbenzene sulphonate, 0.3% of a nonylphenol-ethylene oxide condensate, and 0.25% nonanol. Specification 832,105 is referred to.
Patent GB-180133-A (GB)
Title: Improvements in buffing and polishing wheels
IPC: B24D13/08
Filed: 1921-03-22
Abstract: 180,133. Levett, A. March 22, 1921. Wheels.-A polishing or buffing wheel comprises one or more units each made from a single strip of cloth &c. wound up spirally and mounted on a hub. The strip 10 has along its median line a number of spaced openings 11, preferably of lozenge shape, which form, when the strip is folded widthways, cut-out portions in the folded edge. The strip is then wound spirally to form a number of superimposed layers, which are held in position by a cord 15, Fig. 4, lying in the fold of the strip; each unit thus presents portions 13, the peripheral edges of which perform the polishing. The cutting-out of the strip prevents the formation of unduly thick portions at the gathered inner periphery of the unit. The unit or units are mounted on a hub 14 and held in position between discs 20, 21 connected together by rivets. bolts, stitches, &c. 22. When a stiff wheel is required, the strip is reinforced on one or both sides by the use of fibres, bristles, fine wires, &c. 25 held side by side across the strip by stitching, glue, or cement, the edges of the bristles &c. forming with the raw edges of the strip the polishing-surface. In a modification, as shown in Fig. 5, the doubled strip of cloth &c. 30 is wound helically and gathered round the core by a cord. Specification 132,185 is referred to.
Patent GB-140607-A (GB)
Title: Improvements in electric switches
IPC: H01H15/10
Filed: 1919-04-08
Abstract: 140,607. Damey, R. K., and Damey, C. A. April 8, 1919. No Patent granted (Sealing fee not paid). Switches, quick - break; contacts. - A switch comprises a base 1 carrying a pair of fixed contact pins 2 connected to the circuit bv the terminals 4, and a bridging contact member 7 resiliently carried, as shown, on an insulating-block 5 adapted to reciprocateon the contact pins. A double-ended operating-rod 10 is carried in brackets on the switch base and has a bevelled enlargement 12, which, when pushed or pulled through a circular hole 9 in the insulating-block, depresses the block against the action of the spring 8, or of springs coiled round the contact pins, and brings the bridging-contact into resilient and self-adjusting engagement with the contact pins. Instead of mounting the bridging-contact resiliently, the contact pins may be spring pins as commonly found in lamp sockets. A number of blocks carrying bridging-contacts may be mounted in line to be operated by the bevelled enlargement on the operating-rod.
Patent GB-351456-A (GB)
Title: Improvements in or relating to wetting, penetrating, foaming and dispersing agents
IPC: C07C309/62
Filed: 1930-03-20
Abstract: Alkyloxyalkylesters of sulphonated aromatic carboxylic acids and of aliphatic sulphonated carboxylic acids containing at least nine carbon atoms, which are wetting, penetrating and dispersing agents are prepared by adding an alkyl ether of a polyhydric alcohol containing at least one free hydroxy group, before, during or after treatment of the said carboxylic acids with sulphonating agents.  In examples: (1) ricinoleic acid is sulphonated with oleum and glycolmonomethylether added: (2) 12-oxystearic acid and glycolmonoethylether are mixed and then treated with chlorsulphonic acid; (3) b -naphthoic acid is sulphonated with chlorsulphonic acid and treated with glycol monomethylether.  The products may be used in association with sulphonated oils, aromatic sulphonic acids or their salts, hydrocarbons, halogenhydrocarbons, alcohols or ketones.ALSO:Alkyloxyalkylesters of sulphonated aromatic carboxylic acids and of higher aliphatic sulphonated carboxylic acids, containing at least nine carbon atoms, which are wetting, penetrating, foaming and dispersing agents are prepared by adding an alkyl ether of a polyhydric alcohol containing at least one free hydroxy group, before, during or after treatment of the said carboxylic acids with sulphonating agents.  Sulphuric acid, oleum, sulphurtrioxide, or chlorsulphonic acid may be used as the sulphonating agent, and organic or inorganic dehydrating compounds may be added.  The use of alkyl sulphuric acids and alkylchlorsulphonic acids is also mentioned.  In examples: (1) ricinoleic acid is sulphonated with oleum and glycolmonomethylether added; (2) 12-oxystearic acid and glycolmonoethylether are mixed and then treated with chlorsulphonic acid; (3) b -naphthoic acid is sulphonated with chlorsulphonic acid and treated with glycol monomethylether.  The products may be used in association with sulphonated oils, aromatic sulphonic acids or their salts, hydrocarbons, halogenhydrocarbons, alcohols or ketones. Specifications 315,832, [Class 2 (iii), Dyes &c.], and 350,425 are referred to.
Patent GB-821102-A (GB)
Title: Production of improved silica gel-type catalysts
IPC: B01J21/12
Filed: 1956-03-22
Abstract: Silica-gel type catalysts of high pore diameter, and resistant to attrition, are made by acidifying an aqueous solution of an alkali metal silicate at a temperature of at least 60 DEG  C., and preferably at 60 DEG  to 90 DEG  C., to form a hydrated silica gel, which is then impregnated with an active metal oxide, and dried, e.g. at 600 DEG  to 1200 DEG  F.  Dilute sulphuric, nitric or hydrochloric acid may be used, and aluminium or magnesium oxide as the activator, preferably used in an hydrated form, e.g. by adding to the silica gel suspension an aluminium salt and ammonia.  The dried catalyst may be leached with water to remove soluble salts.  U.S.A. Specifications 2,469,314 and 2,478,519 are referred to.
Patent GB-456265-A (GB)
Title: An improved reaper and binder
IPC: A01D37/04
Filed: 1936-03-26
Abstract: 456,265. Harvesting-machines; sheafing or binding apparatus. BRENNER, F., 220, Bahnhofstrasse, Herrieden, Germany. March 26, 1936, No. 9002. Convention date, April 2, 1935. [Class 6 (iii)] In a reaper and binder having a transverse conveyer inclined upwardly towards the rear at an angle of not less than 15‹ the binding table is arranged substantially horizontally and the cut crop is lifted on to it by packer needles. The under frame is mounted on two rear wheels 2 and two front castor wheels 10. It consists of an axle tube 3, a central longitudinal beam 5, two shorter side beams 6, a rear cross-beam 7, and a longer cross-beam 8. The cutting, conveying and binding mechanism, as well as the outside divider 28 and an ear supporting platform or table 27, are carried by a frame pivoted on pins 17 at the ends of the cross-beam 7, and consisting of upper and lower longitudinal side beams, a cross-beam 13, two shorter crossbeams 14, and side supports 15. A projecting frame 16 carries the draught gear &c. The carrier frame is supported at the front by a V-shaped lever pivoted on pins 19 on the crossbeam 8 and adjustably secured, near the driver's seat 21, by a depending member 23 engaging a fixed notched bar. Parallel to the inner conveyer-band roller 25 is mounted a grooved transfer roller 29 from which a binding deck 30 rises to a substantially horizontal binding table 31, which is displaceable in a longitudinal direction. Projections on the deck 30 engage in some of the grooves 32 in the roller 29 and in the others operate packer needles 34 which engage the cut crop principally at its stubble ends. A packer needle is also located in front of the front end of the roller 29. The length of the packer needles 34 decreases from the front of the machine towards the rear. These needles are pivoted in a shaft 36 and supported at their rear ends by hanging links 35. The shaft 36 is pivoted at its rear end to the ear table 27 and connected at its front end to a crank disc 38, so as to move in a conical path, the crank disc being driven from the cutter-driving shaft 41 by a chain 40. The shaft 41 is driven from the axle 4 of the rear wheels 2 by bevel and chain gearing 42, 45, &c.
Patent GB-1037999-A (GB)
Title: Improvements in or relating to grinding machines
IPC: B24B9/00
Filed: 1964-03-04
Abstract: 1,037,999. Grinding. T. CALDWELL. June 1, 1965 [March 4, 1964], No. 9113/64. Heading B3D. A chamfer grinding machine comprises a grinding disc 2 driven by a motor 5 carried by a base 1 on which is a guide support 3 having a slideway 3A with sidewalls mutually convergent in the direction of the grinding disc for receiving the corner of a workpiece, and a slot 13 in the slideway through which the corner of the workpiece can project into engagement with the peripheral face of the grinding disc. The guide support 3 is supported at opposite ends on blocks 8 on the base and is formed with a recess 10 having an arcuate shape 10A, Fig. 3 (not shown), for cleaning the grinding disc 2. The sidewalls 11, which may be at 90 degrees or some other angle to each other, converge on a channel 12, and the slot 13 is wider than the channel. The grinding disc is carried by the electric motor 5 which is mounted on a plate 15 at one end carried by a pivot 16, Fig. 1 (not shown), on a wad of the base, and at the other end having a ball-and-socket connection with a screw 18 rotatable by a hand wheel 19 to adjust the vertical position of the grinding disc and thus the size of the chamfer ground on a workpiece moved along the slideways. Dressing.-The support 3 may carry a tool for dressing the grinding disc, the tool being moved across the disc by moving the support about a pivot 24, Fig. 3, by which one end of the support is secured to the base, an amount determined by movement of a pin 26 secured to the support along an arcuate slot 28 in the base, the support being movable against the friction of a washer 29 urged by a spring 30 into engagement with the base. In other embodiments, the guide support 3 is movable bodily across the disc, and the motor 5 may be mounted for vertical adjustment in a slide. The grinding may be driven by a flexible drive and only the disc, and not the motor, be vertical adjustable. Flash or burr may be removed by the machine.
Patent GB-943577-A (GB)
Title: Method and apparatus for winding strands
IPC: D02G3/18
Filed: 1962-03-09
Abstract: 943,577. Winding strands. PITTSBURGH PLATE GLASS CO. March 9,1962 [March 10, 1961], No. 9116/62. Heading D1J. Glass filaments 16 are grouped into separate strands 19 as they pass over gathering shoes 20 prior to being traversed on to a rotating tube 17 by a rotating traverse 30, there being a guide 36 intermediate the shoes 20 and the traverse 30 to bring the points of tangency of the strands on the tube 17 close together but distinctly separated during the central portion of their traverse in each direction. The strands overlap each other at the ends of each traverse as the lead strand crosses over the other strand. The rollers 25 apply a liquid binder and a lubricant to the filaments 16. Belgian Specification 570,587 and U. S. A. Specifications 2,386,158 and 2,391,870 are referred to
Patent GB-1485924-A (GB)
Title: Fluid flow transfer apparatus with folded membrane having mechanically sealed edges
IPC: B01D63/14
Filed: 1976-03-08
Abstract: 1485924 Folded membrane apparatus UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 8 March 1976 [9 April 1975] 09152/76 Heading B1X A fluid flow transfer apparatus comprises a case enclosing a semipermeable membrane sheet folded into a stack of very closely spaced pleats 32 a-c, the folded membrane having end edges 35, 37 and serpentine side edges, means for sealingly separating one surface of the membrane from the opposite surface comprising a solidified plastics material surrounding and embedding the side edges (not shown) and clamping means 17, 18 engaging the opposite surfaces of the membrane near each of the end edges in sealed relation thereto and means for passing a first fluid through the pleats in contact with one surface of the membrane and a second fluid in contact with one opposite surface. The apparatus is for use as a portable haemodialysis unit.
Patent GB-643005-A (GB)
Title: Improvements relating to electrical apparatus
IPC: G01S13/76
Filed: 1944-05-12
Abstract: 643,005. Detonating fuses by radio beam. COSSOR, Ltd., A. C., BEDFORD, L. H., and JOFEH, L. May 12, 1944, No. 9173. Drawings to Specification. [Class 9 (i)] [Also in Group XL (c)] An artificial echo in a radar system is produced by a responding receiver-transmitter apparatus (see Group XL (c)) which produces a delayed repeated signal. The artificial echo, delayed a predetermined time behind the true echo, may be used to identify a body in flight which is carrying the apparatus, or it may be used to provide the echo from a body such as a projectile which is not large enough to produce a true echo of adequate strength. If it is desired to compare the ranges of a projectile and its target and transmit a detonating signal a predetermined time before range coincidence, the echo signal may be delayed by the required time interval and the signal transmitted when apparent range coincidence occurs.
Patent GB-146618-A (GB)
Title: Improvements in or relating to apparatus for forming electric battery elements
IPC: H01M4/10
Filed: 1919-04-10
Abstract: 146,618. Wade, H., (National Carbon Co.). April 10, 1919. Feeding carbon rods.-In a machine for making dry battery electrodes, carbon rods x<1> are supplied from a hopper S by means of a feed wheel s' mounted on a shaft s<2> which is rotated intermittingly by ratchet mechanism, the wheel delivering the rods singly to an inclined way s'‹ leading to pocket g. Broken or defective rods drop through an aperture s<11> in the member s<10> into a receptacle s<13>.
Patent GB-581556-A (GB)
Title: Improvements relating to electric tumbler switches
IPC: H01H23/14
Filed: 1945-04-16
Abstract: 581,556. Switch handles. WALSALL CONDUITS, Ltd., and GOUGH, E. April 16, 1945, No. 9429. [Class 38 (v)] The dolly and tumbler mechanism of a tumbler switch are pivoted on a pin, the ends of which are gripped in slots 22 in the heads or nuts of the bolts 14 which secure the bridge-piece to the switch base, these slots being slightly narrower than the diameter of the pivot-pin so that the pin becomes slightly flattened and angular as well as endwise movement thereof is prevented. Each bolt head or nut may be recessed at one side only, as shown, or open slots 22 may be formed on diametrically opposite sides, Fig. 5 (not shown), the slots remote from the pin being used during assembly in a jig. The slots may be formed by a pressing operation. Specification 568,106 is referred to.
Patent GB-400844-A (GB)
Title: Improvements in the treatment of carbonaceous materials with hydrogenating gases
IPC: B01J37/00
Filed: 1933-03-29
Abstract: The heat treatment of carbonaceous materials containing asphaltic impurities with hydrogen preferably under pressure is performed in the presence of a catalyst suspended in an oil which is free from asphalt, e.g. does not contain more than 5 per cent asphalt and does not cause flocculation of the asphalt in the material treated.  Brown coal small coke which has been activated with steam at 900 DEG  C. and neutralized with sulphuric acid is impregnated with an ammoniacal solution of molybdic acid so that the coke contains 2 per cent of molybdic acid.  This catalyst is then ground to colloidal dimensions and mixed with a heavy oil free from asphalt so that a suspension containing 30 per cent of catalyst is obtained and the suspension is added to an asphaltic German petroleum boiling above 325 DEG  C.  The mixture is heated with hydrogen to 475 DEG  C. under 200 atmospheres pressure, 1650 cubic metres of hydrogen being used per metric ton of oil and the products are led into a separating vessel from the bottom of which 6 per cent of the high boiling point products containing catalyst are withdrawn while the remainder is fractionated in a column giving a product 55 per cent of which boils below 325 DEG  C. and 45 per cent above 325 DEG  C., the latter being free from asphalt and being used to mix with the catalyst.  Specifications 328,586, [Class 1 (i), Chemical processes &c.], 360,387, 364,785, 377,452, and 381,367 are referred to.ALSO:The heat treatment of carbonaceous materials containing asphaltic impurities with hydrogen to obtain cyclic hydrocarbons, preferably under pressure, is performed in the presence of a catalyst suspended in an oil which is free from asphalt, e.g. does not contain more than 5 per cent asphalt and does not cause flocculation of the asphalt in the material treated.  Brown coal small coke which has been activated with steam at 900 DEG  C. and neutralized with sulphuric acid is impregnated with an ammoniacal solution of molybdic acid so that the coke contains 2 per cent of molybdic acid.  This catalyst is then ground to colloidal dimensions and mixed with a heavy oil free from asphalt so that a suspension containing 30 per cent of catalyst is obtained and the suspension is added to an asphaltic German petroleum boiling above 325 DEG  C.  The mixture is heated with hydrogen, to 475 DEG  C, under 200 atmospheres pressure, 1650 cubic metres of hydrogen being used per metric ton of oil and the products are led into a separating vessel from the bottom of which 6 per cent of the high boiling point products containing catalyst are withdrawn while the remainder is fractionated in a column giving a product 55 per cent of which boils below 325 DEG  C. and 45 per cent above 325 DEG  C.  The latter fraction is free from asphalt and is used to mix with the catalyst.  Specifications 328,586, [Class 2 (iii), Dyes &c.], 360,387, 364,785, 377,452, and 381,367, [all in Group III], are referred to.
Patent GB-911994-A (GB)
Title: Self-scavenging motor fuel composition
IPC: C10L1/10
Filed: 1960-03-17
Abstract: A self-scavenging motor fuel composition comprises a gasoline having an aromatic content between 10 and 60% by volume, and from 1,20 to 4,25 grams of lead per U.S. gallon as an alkyl lead compound; optionally, a triaryl phosphate may be added.  Suitable phosphates are triphenyl, diphenyl-tolyl, phenyditolyl, tritolyl, phenyl-dixylyl, ditolyl-xylyl, trixylyl and phenyl-tolyl-xylyl phosphates.  The phosphorus-to-lead atom ratio is preferably from 0,4:3 to 1,6:3.  The preferred lead compound is tetraethyl lead.