baber/WOPTO huggingface dataset:
Patent GB-624551-A (GB)
Title: A process for the manufacture of organo-silicon compounds
IPC: C07F7/18
Filed: 1947-07-01
Abstract: Organo-silicon polymers containing -CH2 SiR2- units are obtained by contacting a compound of the type XCH2.SiR2Y with an alkali metal or alkali metal amide in the presence of a compound of the type R2SiY2. In the formul , X is a halogen, preferably chlorine or bromine; Y is a halogen, preferably chlorine or bromine, or an alkoxy radical, preferably chlorine or bromine, or an alkoxy radical, preferably ethoxy; and the R's are the same or different and are alkyl, e.g. methyl to octadecyl, or monocyclic aryl, e.g. phenyl or tolyl. Sodium, sodium-potassium eutectic, and sodium amide are specified. The products may be used as water-proofing agents and foam-preventing agents.  In examples: (1) a mixture of dimethyl ethoxy chlorsilane and dimethyl chloromethyl ethoxysilane was added to a refluxing mixture of toluene and liquid sodium and the product separated by distillation into C2H5OSi(CH3)2.CH2.Si (CH3)2OC2H5, C2H5OSi (CH3)2.[CH2.Si(CH3)2]2OC2\t H5, and higher analogues thereof; similar results were obtained from mixtures of (2) dimethyl diethoxysilane and dimethyl chloromethyl ethoxysilane; (3) dimethyl diethoxysilane and dimethyl chloromethyl chlorsilane; (4) dimethyl dichlorsilane and dimethyl chloromethyl ethoxysilane; and (5) dimethyl chloromethyl chlorsilane, methyl buty dichlorsilane, methyl phenyl chloromethyl chlorsilane and methyl octadecyl dichlorsilane.ALSO:Organo-silicon polymers containing -CH2 SiR2- units are obtained by contacting a compound of the type XCH2.SiR2Y with an alkali metal or alkali metal amide in the presence of a compound of the type R2SiY2.  In the formul , X is a halogen, preferably chlorine or bromine; Y is a halogen, preferably chlorine or bromine, or an alkoxy radical, preferably ethoxy; and the R's are the same or different and are alkyl, e.g. methyl to octadecyl, or monocyclic aryl, e.g. phenyl or tolyl.  Sodium, sodium-potassium eutectic, and sodium amide are specified.  The products may be used as water-proofing agents and as foam-preventing agents.  In examples: (1) a mixture of dimethyl ethoxychlorsilane and dimethyl chloromethyl ethoxysilane was added to a refluxing mixture of toluene and liquid sodium and the product separated by distillation into <FORM:0624551/IV (b)/1> C2H5OSi <FORM:0624551/IV (b)/2> , and higher analogues thereof; similar results were obtained from mixtures of (2) dimethyl diethoxysilane and dimethyl chloromethyl ethoxysilane; (3) dimethyl diethoxysilane and dimethyl chloromethyl chlorsilane; (4) dimethyl dichlorsilane and dimethyl chloromethyl ethoxysilane; and (5) dimethyl chloromethyl chlorsilane, methyl butyl dichlorsilane, methyl phenyl chloromethyl chlorsilane, and methyl octadecyl dichlorsilane.
Patent GB-309779-A (GB)
Title: Improvements in the mountings for the top rollers of drawing heads for spinning machinery
IPC: D01H5/44
Filed: 1928-06-16
Abstract: 309,779. Nigrin, R., and Vereenigde Textiel Maatschappij en Mautner Naamlooze Vennootschap. June 16, 1928. Roller heads.-The upper rollers of a drawing-head for a spinning frame are mounted in bearing blocks formed of sheet metal bent into U-shape to form guides 8, Fig. 4, for the roller spindles, and slotted to embrace a double rail 6. A flap 10 is bent over from one side to accommodate a hoolding bolt 11 to secure the block in its adjusted position. The block may be in the form of a U-shaped stamping the cross piece having a hole 14, Fig. 5, to accommodate the holding bolt and the limbs 13 having bent over edges 15 to form the guides.
Patent GB-996985-A (GB)
Title: Improvements in or relating to pumps
IPC: F04D13/08
Filed: 1962-05-07
Abstract: 996,985. Centrifugal and screw pumps. E. HUSTINSE. May 7, 1962 [May 9, 1961], No. 17543/62. Heading F1C. [Also in Division F2] In a liquid pump 1 driven by a vertical shaft 2 from an electric motor 3 above the pump leakage of pumped liquid into the motor housing 15 is prevented by a buffer of air or gas 18 formed in the upper part of a frusto-conical chamber 14 which surrounds the shaft and communicates with the pump chamber 5. The closed motor housing 15 is hermetically sealed by a flange 15a to a casing 13 containing the chamber 14. The liquid level 17 in the chamber 14 is indicated by a gauge 19 having a float 22. If the level rises above a predetermined height due to leakage of gas from the housing 15, the float 22 operates a switch 23 which, by electrical means, supplies make-up pressure gas to the space 18 through the pipe 21 or switches off the motor 3. In a modification, Fig. 2 (not shown), applied to a screw pump the pipe 21 is connected to a make-up source of compressed air via a stop cock operable either by hand or automatically in dependence on the liquid level 17.
Patent GB-720265-A (GB)
Title: Improvements relating to hop-separating apparatus
Inventor: HARRISON ROBERT VEALE
IPC: A01D46/02
Filed: 1950-07-14
Abstract: 720,265. Hop separating apparatus. HARVESTEX HOP-PICKERS, Ltd. Oct. 15, 1951. [July 14, 1950] No. 17637/50. Class 58. [Also in Group II] Hop-separating apparatus comprises a rotatable foraminous drum on the outside of which hops accompanied by leaves are delivered at a point spaced above the drum and in a generally tangential substantially horizontal direction and to the inside of which suction is applied under whose differential action, with respect to hops and hop leaves, the leaves fall upon and are entrained by the drum, whereas the hops are not so entrained but tend to continue in the direction of such delivery and fall to one side of the drum, to a discharging point for hops, the drum being rotated so that its surface adjacent to the delivery point is moving oppositely to the direction of delivery and that it carries the leaves to a discharging point for leaves on the other side of the drum. As shown hops and leaves delivered by a conveyer 1 fall on to the rotatable drum 5 provided with a cylindrical surface composed of fine wire mesh extending between a disc 6 which closes its one end and a flat ring 37 (not shown) which surrounds its other open end to which end suction is applied, the hops continuing in the direction of delivery (arrow A) onto one half of an endless conveyer 22 whereas the leaves held by suction against the mesh rotate therewith until they come opposite the edge 19 of a mask 8 of approximately half-cylindrical shape arranged in the lower half of the drum when the suction becomes ineffective and they fall away and onto the other half of the conveyer 22, the detachment being ensured by blowing small jets 211 of compressed air through orifices in a tube 20 arranged along the edge 19 out through the passing drum walls. Alternatively a rotating roller brush may be provided. Specification 673;833 is referred to.
Patent GB-165835-A (GB)
Title: Improvements in or relating to phonographs
IPC: G11B17/16
Filed: 1919-07-15
Abstract: 165,835. Vere, C. de. July 15, 1919. Phonographs.-Relates to multiple phonographs of the kind in which the records are superposed in the shelves of a magazine, the selected record being moved in a horizontal plane to bring it over the turntable, and consists primarily in arranging the turntable so that it may be displaced vertically through a distance equal to the height of the magazine, thereby enabling it to pick up any record which has been withdrawn from the magazine. The operation of the machine is as follows. The pointer of the selecting-mechanism is moved opposite a number corresponding to the desired record, and a crank-handle is turned a certain number of times, this handle being freed by inserting a coin. The crank-handle serves to wind up two spring motors, one for rotating the turntable and its motor; and also removes the selected record from the magazine. The turntable then rises and begins to rotate, picks up the record and carries it upward until it engages the needle of the sound-box. After the playing of the record, the turntable is lowered and the tone-arm when free of the record returns to starting position. The record is deposited on its carrier and is returned therewith by a spring into the magazine. Means are provided for preventing operation of the record selecting mechanism when a record has been removed from the magazine, and for preventing the withdrawal of a record from the magazine when the selecting pointer is in an indeterminate position. Coin action, thrust.-The inserted coin falls into a slot in a disc 17 fixed to a shaft 18, carrying a crank-handle 19. Rotation of this shaft is limited to the clockwise direction by a ratchet and pawl, and normally the disc is locked by a hook 15 lying in the path of a pin 16. The coin, however, acts as a cam. on the lever 21, 22, and withdraws the hook 15, which is kept withdrawn by a cam 24 acting on a roller 26 on a link 27. The shaft 25 of the cam 24 is arranged to make a single revolution during the complete winding operation of the crank-handle, say eight turns, whereupon the roller 26 falls into the cam recess and the hook 15 again locks the handle 19.
Patent GB-1081338-A (GB)
Title: A peroxide composition and a method of preparing the same
IPC: C07C409/00
Filed: 1965-04-27
Abstract: A peroxide composition of reduced shock sensitivity comprises benzoyl peroxide and at least one organic peroxide selected from: Type I having a ten hour half life at 110-175 DEG F., Type II having a ten hour half life at 175-250 DEG F. and Type III having a ten hour half life at 250-350 DEG F., said composition having been prepared by recrystallization.  The composition finds application in the polymerization of ethylene or styrene, e.g. in a long tubular reactor with hexane or propylene as modifier. Specified peroxides are: (I) lauryl, caproyl, decanoyl and p-chlorobenzoyl peroxides and t-butyl peroxybivalate; (II) t-butyl peracetate and perbenzoate, and dicumyl peroxide; and (III) di-t-butyl peroxide.
Patent GB-652448-A (GB)
Title: Process for the preparation of vivid acid dyestuffs of the anthraquinone series
Filed: 1948-07-02
Abstract: Anthraquinone derivatives of the following formul  are sulphonated: <FORM:0652448/IV (c)/1> <FORM:0652448/IV (c)/2> wherein R1 is hydrogen or alkyl, X is hydrogen or halogen, Y is hydrogen or sulpho if X is hydrogen, and is hydrogen or halogen if X is halogen, Z is hydrogen, acetyl, or carbalkoxy, and R2 is phenylcyclohexyl-, benzylcyclohexyl-, or 1.2.3.4-tetrahydronaphthyl.  The products dye wool, e.g. felt, silk or nylon in a sulphuric acid bath blue shades. In examples, the following substances are sulphonated in sulphuric acid monohydrate, oleum or chlorsulphonic acid: (1) 1 - amino - 4 - (11.21.31.41 - tetrahydro - 21 - naphthylamino) anthraquinone-2-sulphonic acid or by its 6.7-dichlor, 6- or 7-chlor or brom, 2.6-, 2.5-, 2.7- or 2.8-disulpho derivatives; (2) 1-amino-4-(41-phenylhexahydroanilido) -anthraquinone-2-sulphonic acid or its 6- or 7-chlor- or brom-derivatives; (3) 1-amino-4-(21-, 31- or 41 - phenylhexahydroanilido) anthraquinone - 2.5-, 2.6-, 2.7- or 2.8-disulphonic acids; (4) 1-amino-4-(11.21.31.41-tetrahydro-11 -naphthylamino) - anthraquinone - 2 - sulphonic acid; (5) 1-amino-4-(21- or 31- or 41-benzylhexahydroanilido) anthraquinone-2-sulphonic acid; (6) 4 - (11.21.31.41 - tetrahydro - 21 - naphthylamino) - 1.9-C-carboethoxyanthrapyridone-2-sulphonic acid or its 6- or 7-halo or 6.7-dihalo derivatives; (6) 4-(11.21.31.41-tetrahydro-11 -naphthylamino)-1.9-C-carboethoxy-anthrapyridone-2-sulphonic acid; (7) 4-(21- or 31- or 41-phenyl or benzylhexahydroanilido)-1.9-C-acetyl or carbethoxyanthrapyridone-2-sulphonic acid or one of its salts; (8) N-methyl- or ethyl-4-(41-phenylhexahydroanilido) - 1.9 - anthrapyridone - 2 - sulphonic acid.
Patent GB-1402184-A (GB)
Title: Anodic treatment of chromium-containing alloys
IPC: C25D21/18
Filed: 1972-04-18
Abstract: 1402184 Anodic treatment of Cr alloys INTERNATIONAL NICKEL Ltd 16 April 1973 [18 April 1972] 17941/72 Heading C7B A chromium containing alloy is coloured by immersion as the anode in an aqueous solution of H 2 SO 4  with chromic acid, or a chromate or a dichromate. The D.C. current may be interrupted when the anode potential with respect to a reference electrode reaches a predetermined value corresponding to a film of given colour. Alternatively the anode potential may be set at this value and the current allowed to fall to zero. The alloy may be stainless steel or chromium alloys based on Fe, Co, or N: The solution may also contain manganous sulphate. The cathode may be lead or platinum. The reference electrode may be calomel or an inert metal or alloy. The film may be subsequently hardened by cathodic polarization.
Patent GB-107161-A (GB)
Title: Improvements in Springs.
Inventor: RIGBY GEORGE EDWIN
IPC: B60G11/12
Filed: 1916-12-15
Abstract: 107,161. Rigby, G. E. Dec. 15, 1916. Laminar springs. - T h e eyes at the ends of elliptic, semi-elliptic, and other laminated springs are fitted with bearing bushes, having an annular lubricating channel, for the axle or shackle pin. Two bushes B may be forced into the eye from opposite sides or into a steel tube a<2> previously inserted, a space b between the bushes being left for lubricant. In a modification, a single bush is used having one fixed flange and another flange screwed on to it after insertion in the eye, an annular channel being cut for lubricant. The side cheeks f of the shackles or connecting links have integral steel bushes f<1> through which the bolt passes, or a shackle-bolt passing directly through the bushes B may be used. The device is specially applicable to the springs described in Specifications 10936/15, 16881/15 and 102,165, [all in Class 136 (iii), Velocipedes &c., Kinds &c. of].
Patent GB-1263324-A (GB)
Title: Circular dichroism measurement system
IPC: G01N21/19
Filed: 1969-04-09
Abstract: 1,263,324. Measurement of circular dichroism. CARY INSTRUMENTS. April 9, 1969 [April 22, 1968], No. 18117/69. Heading G1A. Circular dichroism measurement apparatus utilizes detector circuitry arranged to provide a logarithmic output. In the arrangement of Fig. 1, radiation from a source of ultraviolet, visible or infrared radiation, is passed through a monochromator which is scanned through a particular range of narrow wavelength bands. Radiation then passes through a polarizer 15, either the ordinary or extraordinary beam from which only being used and passed to polarisation modulator 17 which produces an output ranging alternately between left- and right-circularly polarized radiation. The modulation may be sinusoidal or square-wave. After passage through sample 19 the radiation is detected by photo-tube 21. This is followed by a preamplifier 24. The signal is then acted on by a logarithmic inverter 26. This may be an operational amplifier (29) Fig. 2 (not shown) with a diode or transister in its feedback loop, in which case preamplifier 24 is an inverter, or may be a feedback control to the voltages applied to the dynodes of a photo-multiplier when this is used as the detector 21, Fig.2a (not shown). The signal from 26 is an A.C. signal (sinusoidal or square wave) of amplitude depending on the logarithms of the transmitted right and left circularly polarized components of the radiation beam. The signal may be applied directly to indicator device 41, in which case the device 41 performs isolation of the A. C, portion of the signal and may comprise a capacitor, or an inductor (e. g. forming part of a transformer) but is preferably first of all shaped into a true square wave form (in synchronism with the modulations of device 17) and filtered by a long or short time constant circuit in filter circuit 40, detailed in Fig. 3 (not shown). The signal arriving at indicator 41, which is a potentiometer bridge arrangement, detailed in Fig. 4 (not shown), is compared with a square -wave reference source, the potentiometer slider being connected to the pen of the recording chart 60, which is moved in synchronism with the monochromator scan, so that a record of circular dichroism versus wavelength is obtained. The order of devices 26 and 40 (when present) may be reversed, in an alternative system. In another alternative set-up, the sample is mounted between the monochromator and polariser, Fig. 7 (not shown). The filter 40 may be replaced by a synchronous rectifier driven in synchronism with the polarisation modulator. The resulting D. C. signal is compared with a D.C. reference signal at 41.
Patent GB-1205083-A (GB)
Title: Improvements in or relating to lineomycin derivatives and the manufacture thereof
IPC: C07H15/16
Filed: 1968-04-17
Abstract: 1,205,083. Lincomycin derivatives. UPJOHN CO. 17 April, 1968 [10 May, 1967], No. 18148/68. Heading C2C. Novel compounds of the Formula (I) are prepared by condensing compounds of the Formula (II) with appropriate aldehydes to give compounds of the Formula (III), acylating these to give compounds of the Formula (IV) and removing the acetal and, when necessary, the N-protecting groups. R 2 CO is an optionally substituted hydrocarbon carboxylic acyl radical of up to 18 carbon atoms or an alkoxycarbonyl group; X is Cl or Br; R and HR 1  are each C 1-20  alkyl, C 3-8  cycloalkyl or C 7-12  aralkyl; R 3  is H, C 1-20  alkyl, C 3-8  cycloalkyl or optionally substituted C 7-12  aralkyl; and Q is a protecting group, such as one removable by hydrogenolysis, e.g. hydrocarbonoxycarbonyl, benzyl or nitrobenzyl, or is R 3  other than H. Also claimed as novel are (IV), where Q is R 3  other than H or is hydrocarbonoxycarbonyl, (III) where Q is hydrocarbonoxycarbonyl, benzyl or nitrobenzyl and (I) where R 3  is additionally hydrocarbonoxycarbonyl. The lincomycin derivatives (I) have essentially the same antibacterial activity as lincomycin and can be made up into pharmaceutical compositions with suitable carriers. Thus, aqueous formulations can be used in pediatrics. Specifications 1,140,663 and 1,140,833 are referred to.
Patent GB-613292-A (GB)
Title: Improvements in gas turbine power plants
IPC: F02C3/00
Filed: 1946-06-17
Abstract: 613,292. Gas turbine plant. LYSHOLM, A, June 17, 1946, No. 18180. Convention date. June 22, 1945. [Classes 110 (i) and 110 (iii)] A gas turbine plant has at least one centrifugal compressor provided with pivoted guide vanes or throttle valves at the inlet and/or the outlet which are operated in conjunction with the fuel valve. In a plant for driving an airscrew 3, Fig. 3, and providing gases for a propulsion jet through pipe 16, two centrifugal stages 2a, 2b have pivoted outlet guide blades 6a, 6b operated from a shaft 11 through gearwheels. The shaft 11 is operated by a hand lever 22 and, at the same time, a spring 24 alters the loading of a governor 19 which controls the fuel valve 21. The gear-wheels are such that the guide blades 6a will be moved less than the blades 6b. In another form, the guide blades 6b will be moved less than the blades 6a, but in the opposite direction. In a plant for driving an electric generator, sets of pivoted guide blades are provided at the inlet and the outlet of the low-pressure stage and the sets of guide blades are moved in opposite directions. In a plant for driving a ship's propeller 64, Fig. 5, a centrifugal compressor 53 precedes a displacement compressor 54 and is provided with pivoted outlet guide blades. The two compressors are driven by the two turbine stages 51, 52 and the latter drives the propeller 64. The compressor 54 can be byepassed at 56 and the turbine 51 can discharge to atmosphere through a valve 82. The fuel valves 81, 83 for the two combustion chambers 59, 61 and the valves 57, 82 are controlled by cams 71-74 on a shaft 70 geared to the shaft 11 for controlling the outlet guide blades and both shafts are operated by a hand lever 67. Fig. 6 shows a centrifugal compressor diffuser in which alternate passages 91 can be closed by parts 92 of a rotary valve sleeve.
Patent GB-242330-A (GB)
Title: Method of and machine for manufacturing paper bands for tubes for forming bags
IPC: B31D1/00
Filed: 1924-07-30
Abstract: 242,330. Kirchhof, W. July 30, 1924. Materials, special, for bags; paper bags. - A tube is formed by winding a strip or strips, composed of a number of smaller strips of paper overlapped and stuck together, on to a former n in helical manner, lengths cut off from the tube so formed being made into bags. A number of such composite strips m<1> - - m<4> may be employed, each being off-set, as shown in Fig. 7. In a modification, a single strip may be strengthened by the addition of a number of narrow strips applied to it, or several strips P<1>, P<2>, P<4> may be joined and strengthened by the application of broad or narrow strips P<3>, P<5>. Fig. 8 shows a block-bottom bag made in accordance with the invention. A small opening p for filling purposes is afterwards closed by means of an adhesive sheet, or closure may be effected in the ordinary way by tying.
Patent GB-219990-A (GB)
Title: Improvements in and connected with inkwells
IPC: B43L25/00
Filed: 1924-07-31
Abstract: 219,990. Hunt, N. July 31, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Inkstands.-The dipping aperture of an inkwell is normally closed by a stopper displaced by dipping a pen into the well and restored on removal of the pen, dust .and flies being thus excluded and evaporation of the ink prevented. The stopper may be controlled by gravity in a gradient at the top of the inkwell sloping towards the aperture and serving to return displaced ink into the well. A porcelain, china, or other inkwell a, Figs. 2, 5, and 7, with or without a flange e to retain the well on a desk &c., may be provided at the top with a dish-shaped recess f, Fig. 2, having curved sides sloping from a central aperture d, with an inverted conical recess having straight sides and the aperture at the vortex, with radial grooves n, Fig. 5, intersecting at and increasing in depth towards a central aperture, for example, two diametricallyopposite or three symmetrically-arranged grooves, or with holes o, Fig. 7, intersecting at and sloping up from a dipping aperture d<1> in a downward extension c of the top of the well, so that a pen inserted in one hole displaces the stopper g up the other hole. The stopper g may be spherical or may have any of the forms shown in Fig. 10. Removal of the stopper from the inkwell or throwing off of the stopper by rapid insertion of the pen may be prevented by a vertical peripheral flange l, Fig. 5, with or without openings m facilitating dipping, by a chamber h, Fig. 2, mounted on and fitting the top of the inkwell and having an aperture sufficiently large to admit the stopper but arranged with its upper edge i<1> spaced from the edge of the aperture d a distance less than the diameter of the stopper, by a dome-shaped cover engaging over the flange e with an aperture at one side of less height than the diameter of the stopper, by corks inserted in the outer ends of the holes o, Fig. 7, or by a perforated, conical, or dome-shaped cover integral with the well, a cork &c. being used to close the apertures if they are larger than the stopper. The top of the interior of the inkwell may be shaped as shown in Fig. 2 or may be sloped towards the aperture d to facilitate emptying the well.