baber/WOPTO huggingface dataset:
Patent GB-931699-A (GB)
Title: Vulcanisable organopolysiloxane compositions
Filed: 1960-10-25
Abstract: A composition which is moisture-free, is stable in storage and is vulcanizable in the presence of moisture, comprises a mixture of a liquid diorganopolysiloxane and an organotriacyloxysilane, as claimed in the parent Specification, together with a tin carboxylate or organotin carboxylate which is present in a proportion, calculated as tin, of 0,001 to 1% of the weight of the siloxane.  Fillers and/or solvents may be added.  Tin salts specified are the naphthenates, 2-ethylhexoates and benzoates and dibutyl-tin-dilaurate and -diacetate.  In Example (1) silica, diatomaceous earth and iron oxide were added with stirring to anhydrous dimethylpolvsiloxane oil under an atmosphere of nitrogen; further siloxane was added and the mixture was heated to 135 DEG -140 DEG C. under a current of dry nitrogen, cooled, triturated with methyltriacetoxysilane and divided into two parts, dibutyl-tin-dilaurate being added to one part and stannous octoate to the other.
Patent GB-302359-A (GB)
Title: Process of and apparatus for the production of solid carbon dioxide
IPC: C01B32/55
Filed: 1928-12-12
Abstract: 302,359. Hessling, W. Dec. 15, 1927, [Convention date]. Solidifying.-Solid carbon dioxide is produced by expansion of the compressed liquid, which is cooled by evaporation of an external cooling agent circulated in a closed cycle and producing a temperature below that obtained by water-cooling. The gas to be solidified may be similarly lique fied. Carbon dioxide is compressed in a stage compressor 2, 3, 4, Fig. 1, and cooled, and so liquefied in a water-cooled condenser 5. The liquid is further cooled in a refrigerator 6 through which ammonia &c. circulates in a cycle comprising a compressor 12, expander 14, and cooler 13. The liquid oxide expands into a vessed 8, where it partly solidifies, the remainder passing to the compressor 2 in gaseous form. In a modified apparatus, Fig. 2, the compressed gas is cooled, liquefied, and further cooled before expansion in vessels 19, 22, 23, in which ammonia &c. is evaporated at successively lower 'pressures, the evaporate being withdrawn and compressed for delivery to the next vessel or to the condenser 34 by compressors 28, 32. Water &c. is condensed out in the vessel 19, and is removed by a separator 20. Two such vessels 19, 39 may be used alternately to provide for thawing out of solid deposits.
Patent GB-1197984-A (GB)
Title: Frequency-Controlled A.C. Drive
Inventor: SHTEIN ISAAK MAXIMOVICH
IPC: H02P27/04
Filed: 1967-08-10
Abstract: 1,197,984. Control of A.C. motors. GOSUDARSTVENNY PROEKTNY INSTITUT "TYAZHPROMELEKTROPOEKT." 10 Aug., 1967, No. 36686/67. Heading H2J. [Also in Division H3] An induction motor is energized via magnetic amplifiers, one for each phase, supplied from A.C. mains but whose outputs are modulated by an auxiliary, variable-frequency source, each amplifier having two such outputs which are undirectional but are connected to respective halves of the phase windings in bridge formation across the diagonals of which are connected non- contact switches energized in succession so as to provide alternating current in the phase windings. Fig. 1 shows the arrangement for one motor phase; the amplifier has two-phase mains energized input windings 6, 6 and 7, 8, and control windings 25 . . . 28 energized from the auxiliary source 29. Two second-harmonic outputs are each comprised of four secondary windings 9 . . . 12 and 17. . . 20 connected through diodes 13, 14 and 21, 22 to output terminals 15, 16 and 23, 24, and these form a bridge network with motor half windings 30, 31 with thyristor switches 32, 33 across the diagonals. These are triggered in succession at current zero, e.g. by Schmitt triggers 38, 39 whose inputs are connected to resistors 36, 37 or transformers. The output waveform (Fig. 2B, not shown) has a component which is the second harmonic of mains frequency but this is smoothed out by capacitors 34, 35. The diodes 13, 14 and 21, 22 also provide internal feedback, the effect of which can be varied by a D.C. bias winding (not shown); this produces a current zero band of variable width between each half-cycle. In the arrangement shown the output frequency is always less than that of the main, but in an alternative (Fig. 3, not shown) an output at 60 c.p.s. is obtained with 50 c.p.s. mains; in this each amplifier has six phases arranged on twelve cores and energized from three phase mains using a Scott connection arrangement of the input windings.
Patent GB-365259-A (GB)
Title: Improvements in apparatus for textile testing
IPC: G01N3/16
Filed: 1930-12-05
Abstract: 365,259. Testing strength of textile threads. BOYCE, R. C. and BOYCE, B. A. M., 147, Ashby Road, Loughborough, Leicestershire. Dec. 5, 1930, No. 36693. [Class 106 (ii).] The test sample is initially positioned without any special precision in grips between which relative motion is to take place this motion being then produced and the sample positively loaded only when the grips have been separated by a predetermined distance when temporary and automatic connection is established between one travelling grip and one element of a two-part indicator the other element of which is controlled by the position of the second grip. A tubular carriage 2 is adapted to slide on a tubular bed 1 by means of a screwed spindle 3 driven by a motor 4 the screw being held against axial movement by a thrust bearing 5 and motion being transmitted to the carriage through a nut 6 formed in one with a key 7 extending through a slot in the bed 1. One end of a length of yarn 9 is held in a manually operated or spring grip 10 mounted on a base 12 slidable on a fixed seat 13, a loose pointer 11 being arranged as shown. The base 12 is loaded by a weight 14 on the arm of a wheel 15 attached by a flexible member 16 to the base 12. The yarn passes through an initially open grip 18 and through a tensioning device 20 on the carriage. After movement of the carriage has drawn the yarn through the tension device 20 until a predetermined length exists between the grips, a key 21 urged downwards by a spring 22 to bear on a bar 23 meets a gap 24 in the bar, and a pin releases a spring catch 26 normally holding up a lever 28 which then falls allowing the spring 29 to close the grip 18. The yarn is then placed under load measured by the lever 14 until breakage occurs, whereupon a catch 32 resting on the yarn falls and releases a lever 31 which is turned by a spring 33 to lift the key 21 out of the slot 24. The rod 23 then remains stationary and the extension of the yarn may be obtained by reading off the relative movement between the bar 23 and the pointer 11 on the scale 13 on the bar. The screw keeps on rotating until a collar 38 on the carriage engages a spring 40 abutting against a collar on a rod 34 which is moved to throw over a quick reversing switch 35. On return of the carriage the collar 38 engages the spring 39 abutting against a second collar on the shaft and the rod 34 is slid to engage a fixed stop 37 in which position the switch 35 stops the motor. The quick reversing toggle mechanism 36 at this time is just over the dead centre ready to reverse the switch when the stop 37 is moved by hand out of the path of the rod 34. The tensioning device 20 may be combined with the grip 18.
Patent GB-1237157-A (GB)
Title: Methylene dianilines
IPC: C08G18/10
Filed: 1969-07-22
Abstract: 1,237,157. Methylene dianilines. UPJOHN CO. 22 July, 1969 [29 July, 1968], No. 36726/69. Heading C2C. A process for the crystallization of methylene dianilines rich in the 4,4<SP>1</SP>-isomer from a mixture of methylene-bridged polyphenyl polyamines containing 35-85% by weight of methylene dianilines, the remainder being polyamines of higher molecular weight, comprises the steps of (a) cooling with agitation a molten mixture of the methylene-bridged polyphenyl polyamines to an operating temperature above the setting point and below the point of nucleation, and maintaining the operating temperature of the resulting slurry substantially constant while (b) removing an aliquot from the polyamine mixture, (c) adding to the main batch of the polyamine, in an amount corresponding to the volume of the aliquot removed, a homogeneous liquid polyamine mixture corresponding substantially in overall composition to the main batch, (d) repeating steps (b) and (c) until such time that a visual increase in crystal size is observed and the decrease in viscosity of the polyamine mixture substantially ceases and, (e) separating the crystalline product from the mother liquor. The mixture of starting polyamines can be obtained by condensation of aniline and formaldehyde.
Patent GB-1084759-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1965-08-26
Abstract: Novel compounds of the general Formula I are obtained by contacting a compound of the general Formula II with a chlorosilane of the general formula Cl-Si(alkyl)3 <FORM:1084759/C3/1> <FORM:1084759/C3/2> wherein R is H or OH3; R1 is H or alkyl (1-8 carbon atoms); z is 0 or two hydrogen atoms, the dotted line designates the optional presence of a D 1 double bond; and wherein the remaining alkyl radicals in the formula can be the same or different.  The yield may be enhanced by the addition of the corresponding hexaalkyldisilazane of the formula (alkyl)3SiNHSi(alkyl)3.ALSO:Novel compounds of the general Formula I are obtained by contacting a compound of the general Formula II with a chlorosilane of the general formula Cl-Si(alkyl)3 <F\1> wherein R is H or CH3, R1 is H or alkyl (1-8 carbons), Z is an oxygen atom or two hydrogen atoms, the dotted line designates the optional presence of a D 1 double bond; and wherein the remaining alkyl radicals in the formula can be the same or different.
Patent GB-1149244-A (GB)
Title: Improvements in or relating to the surface treatment of workpieces
Inventor: BONIFACE FREDERICK GEORGE
IPC: B24B31/06
Filed: 1965-08-26
Abstract: 1,149,244. Vibratory finishing. ROTOFINISH Ltd. 17 Aug., 1966 [26 Aug., 1965], No. 36791/65. Heading B3D. Apparatus for deburring, polishing or other surface treatment of workpieces comprises an elongated tub 1 for receiving the workpieces together with abrasive media and rotary means for so vibrating the tub that the material in the tub is given an orbital cascading movement about an axis extending longitudinally of the tub with the material piled higher against one side of the tub than against the opposite side, the tub having adjacent one end thereof an outlet opening 5 through which the material can progressively discharge as additional material is introduced into the opposite end of the tub; the apparatus is characterized in that the means for vibrating the tub can be driven in either direction and that the outlet opening is disposed in one side wall of the tub with its lower edge at a level intermediate the levels of the surface of the material adjacent the two side walls of the tub, whereby with the vibratory means operating in one direction the material is retained in the tub, while with the vibratory means operating in the reverse direction the material is discharged through the outlet opening. The tub has secured to its underside a vibrator (4) comprising an eccentrically weighted shaft and a reversible electric motor. The outlet opening 5 communicates with a discharge shoot 6 beneath which is the lower end of a shallow trough 7 extending alongside the tub and sloping upwardly at about 10 degrees to the horizontal. At the upper end of the trough a gravity shoot 8 leads back into the other end of the tub. The trough is supported on springs (9) and coupled to two contra-rotating electric motors (10) which vibrate it so that material therein is conveyed to its upper end. A screen 11 mounted above the lower end of the trough so as to partake of its vibration retains discharged workpieces which are picked off by hand or discharged through a shoot, the media passing into the trough and being returned to the tub. The screen 11 may be omitted; the workpieces may then be picked out of the trough by hand or removed by a magnetic separator.
Patent GB-360235-A (GB)
Title: Improvements in or relating to the mounting or supporting of electric motors for vacuum cleaners or the like
IPC: A47L9/22
Filed: 1930-12-08
Abstract: 360,235. Motor supports. MAUZ, W., PFEIFFER, P., FABER, E., and HAHN, L., (trading as MAUZ & PEIFFER), Botnang, Stuttgart, Germany. Dec. 8, 1930, No. 313915. Convention date, Dec. 16, 1929. [Class 35.] A motor which is to be supported in an outer casing, more particularly for a vacuum cleaner, is arranged in an intermediate casing against which it is pressed by resilient means, a resilient ring being interposed between the intermediate casing and the abutting end of the motor. In the form shown,. the motor-fan unit b is pressed by the spring p against the resilient ring k which is carried by the intermediate casing m. The intermediate casing m has a flange m<2> which presses against or is embedded in the resilient ring n and is secured to the end of the outer casing a. The springs p may be replaced by a compression spring arranged between the outer end of the motor-fan unit b and a resilient pad attached to the end cover e.
Patent GB-805363-A (GB)
Title: A method of applying a sound absorbent lining to a surface
IPC: B32B27/00
Filed: 1954-12-24
Abstract: 805,363. Coating with pre-formed sheets. ZIEGLER, W. Dec. 24, 1954 [Dec. 24, 1953], No. 37331/54. Class 93 [Also in Groups VIII and XIII] A sound-absorbing covering consisting of a sheet of wool felt 5 impregnated with bitumen and having fibrous, sound-porous major surfaces has applied thereto a layer of bitument 7 which is allowed to become non-adhesive; the sheet is then shaped and the bitumen layer or a surface 6 to which it is to be applied is heated, the sheet is placed over a surface with the soundporous surface visible, and the bitumen allowed to cool. The sheet 5 may be corrugated and may enclose air cushions 8, or it may be plain.
Patent GB-368787-A (GB)
Title: Improvements in or relating to automatic switching apparatus
IPC: H01H67/16
Filed: 1930-12-11
Abstract: 368,787. Automatic exchange switches. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.- (Assignees of Vereinigte Telephon und Telegraphenfabriks Akt.-Ges. C. Nissl & Co. ; 75, Dresdnerstrasse, Vienna.) Dec. 11, 1930, No. 37363. Convention date, Dec. 24, 1929. [Class 40 (iv).] Change over from one motion to the other in a switch with a single stepping magnet is controlled by a sluggish armature. In response to the first impulse train, the pawl 3, Fig. 2, co-operating with a ratchet 4, Fig. 1, drives a drum 5 with helical teeth engaging a rack 8 carrying the wipers 24 and sliding in a guide 14. When the drum is in its normal position, a spring-pressed member 11 pivoted to the guide is in the position shown at a, Fig. 6, against the toothed rim of the drum. When the drum moves off normal, member 11 assumes position b, being prevented from further movement by the sluggish armature 13 as shown in Fig. 4a. In this position member 11 acts as a detent for the drum. Rotation of the guide is prevented by engagement of the member 11 with the latch 20 and during the first movement of the drum therefore the wipers are lifted. At the end of the train, the sluggish armature allows the member 11 to move to position c, Fig. 6, locking the drum to the guide and freeing itself from the latch 20. The next digit therefore rotates the wipers, back rotation being prevented by a detent 15 on the guide and a fixed ratchet 16. At the end of the call the magnet receives further impulses. During the forward movement a pin 18 on the guide flexes a spring 17. When the wipers move clear of the bank this spring is released and disengages member 11 from the drum which is then restored by spring 9, lowering the wipers, until the stop 12 engages the member 11 as shown at a, Fig. 6. In this position a pin 19 on the drum lifts the detent 15 clear of the ratchet 16 and drum and wipers are then returned together to normal. As shown in Fig. 7, the quick armature 2 is U-shaped and projects within the windings 37. At the other end, the cores are divided and one portion of each is fitted with a copper block 40 to make the armature 13 sluggish.
Patent GB-1016773-A (GB)
Title: A process for treating the surface of aluminium or aluminium alloy
IPC: C25D11/18
Filed: 1962-10-02
Abstract: A process for treating the surface of Al or an Al alloy, e.g. a refrigerator ice tray or a refrigerator evaporator, to reduce the tendency of ice to adhere to it and improve its corrosion resistance and abrasion resistance comprises electrolytically anodizing the surface to form a porous film of aluminium oxide thereon, washing with cold water and immediately thereafter applying an organo hydrogen polysiloxane to the porous surface and heating the surface to a sufficiently high temperature to cause dehydrogenation of the organo hydrogen polysiloxane so that it becomes chemically bonded to the anodized surface of the Al or Al alloy.  For anodizing, oxalic or sulphuric acid may be used to produce oxide films, 15, 20 or 25 microns thick. Methyl, ethyl or phenyl hydrogen polysiloxanes may be used, the methyl compound being in solution with benzene, xylene or toluene, the ethyl compound with benzene-butanol and the phenyl compound with benzene.  The polysiloxanes may be applied by painting, immersion, or by impregnated cotton wool.  The heating may be at 140 DEG C. by steam at 4 atmospheres, by boiling water at 100  DEG C. or by an air drying furnace at 120  DEG C.ALSO:A process for treating the surface of Al or an Al alloy, e.g. a refrigerator ice tray or a refrigerator evaporator, to reduce the tendency of ice to adhere to it and improve its corrosion resistance and abrasion resistance comprises electrolytically anodizing the surface to form a porous film of aluminium oxide thereon, washing with cold water and immediately thereafter applying an organo hydrogen polysiloxane to the porous surface and heating the surface to a sufficiently high temperature to cause dehydrogenation of the organo hydrogen polysiloxane so that it becomes chemically bonded to the anodized surface of the Al or Al alloy.  For anodizing, oxalic or sulphuric acid may be used to produce oxide films 15, 20 or 25 microns thick. Methyl, ethyl or phenyl hydrogen polysiloxanes may be used, the methyl compound being in solution with benzene, xylene or toluene, the ethyl compound with benzene-butanol and the phenyl compound with benzene.  The polysiloxanes may be applied by painting, immersion, or by impregnated cotton wool.  The heating may be at 140  DEG C. by steam at 4 atmospheres, by boiling water at 100  DEG C. or by an air drying furnace at 120  DEG C.
Patent GB-524018-A (GB)
Title: Improvements in or relating to folders or the like for holding papers
IPC: B42F7/02
Filed: 1938-12-23
Abstract: 524,018. Folders. WRIGLEY, H. W. Dec. 23, 1938. No. 37401. [Class 146 (i)] A folder for holding papers has its covers stiffened by corrugations or embossings 8. These extend from or from near the folded edge or side 10 to or to near the free edges 6, 7. Plain margins 11-14 may be left along any of the edges and may be bordered by a corrugation or embossing 15, 16 at the ends of the main corrugations 8. The corrugations may alsc be inclined and may be formed before the folding. Rollers or dies are used to produce the corrugations or embossings. Specification 14398/99, [Class 146], is referred to.
Patent GB-822068-A (GB)
Title: Shampoo compositions containing the gamma isomer of benzene hexachloride
IPC: C11D1/00
Filed: 1956-12-07
Abstract: A medicinal shampoo comprises the gamma isomer of benzene hexachloride and a shampoo vehicle which comprises one or more detergents and an opacifying and/or thickening agent.  Specified detergents are sodium lauryl sulphate, triethanolamine lauryl sulphate, cetrimide, the condensate of octyl cresol and 8-10 molecular proportions of ethylene oxide, and lauric acid diethanolamide.  Specified opacifying and/or thickening agents are spermaceti, cetanol, cetostearyl alcohol, stearic acid, sodium stearate and carboxymethylcellulose.  Glycerol, propylene glycol, diacetone alcohol, arachis oil, liquid paraffin, and terpineol may also be present.  The shampoo may be in the form of a cream, paste, gel or liquid cream.ALSO:Pharmaceutical compositions comprise the gamma isomer of benzene hexachloride and a shampoo vehicle which comprises one or more detergents and an opacifying and/or thickening agent. Specified detergents are sodium lauryl sulphate, triethanolamine lauryl sulphate, cetrimide, the condensate of octyl cresol and 8-10 molecular proportions of ethylene oxide, lauric acid diethanolamide.  Specified thickening and/or opacifying agents are spermaceti, cetanol, cetosterayl alcohol, stearic acid, sodium stearate and carboxymethyl cellulose.  Glycerol, propylene glycol, diacetone alcohol, arachis oil, liquid paraffin and terpineol may also be present.  The composition may be in the form of a cream, paste, gel or liquid cream.
Patent GB-831358-A (GB)
Title: Catalyzed halogenation of polyolefines
IPC: C08F8/20
Filed: 1957-12-02
Abstract: High molecular weight polyolefins are halogenated by forming an aqueous suspension of the polyolefin in a finely divided particulate form, incorporating in the aqueous suspension between 0.005 and 1.0%, based on the polyolefin, of a hydroperoxide catalyst of general formula XYZCOOH, where X, Y and Z are either hydrogen or an alkyl radical of one to eight carbon atoms, only one of X, Y and Z being hydrogen, and subjecting the suspension to the action of a halogenating agent.  Specified polyolefins are polyethylene, polypropylene, polybutylene, olefin copolymers, polystyrene and polyvinyl toluene, specified hydroperoxides are tertiary - butylhydroperoxide (preferred), secondary - butylhydroperoxide, triethylmethyl hydroperoxide, 1 - methyl - cyclohexyl-1-hydroperoxide and pentamethylethylhydroperoxide while specified halogenating agents are chlorine, bromine and their mixtures.  Low- or high-pressure type polyolefins may be used, and the preferred reaction temperature is between 80 DEG  and 95 DEG  C.  Specifications 471,590, 481,515, 530,617, 533,362 and U.S.A. Specification 2,503,252 are referred to.
Patent GB-753009-A (GB)
Title: Improvements relating to road surfaces, pipe linings and similar structures and to reinforcement for use therein
IPC: E01C9/00
Filed: 1953-10-29
Abstract: 753,009. Reinforced concrete. MARSDEN, A. Oct. 29, 1953, No. 37588/54. Divided out of 752,874. Class 20(4). In a lattice reinforcement, bent strips, connected together to form a honeycomb structure, differ in depth at their abutting faces so that the edge of only one of each pair of abutting faces lies in the surface. In the form shown in Fig. 2, the strips are bent into lengths 1, each alternate length having faces 5A shallower than the corresponding faces 5B of the adjacent lengths. In the form shown in Fig. 7, each strip is bent into a regular hexagon having three sides of reduced depth. Holes 6 are provided for split pins 7 and holes 8 key the concrete or like to the reinforcement. When the reinforcement is used for lining a pipe or, for any other reason it faces downwards, the strips are preferably provided with slots 24 for additional keying.