baber/WOPTO huggingface dataset:
Patent GB-817794-A (GB)
Title: Polychlorofluoroketones
Filed: 1956-05-08
Abstract: The invention comprises ketones containing at least one polychlorofluoroalkyl radical affixed to a carbonyl group, said radical being free from hydrogen or having a hydrogen atom only in b -position to the carbonyl group, and especially those of the formula ZCF2.CO.R in which Z is Cl(CF2CFCl)n-1-, Cl(CF2CFCl)m-1CF2CHF- or R.CO.CFCl(CF2CFCl)p-2-, n is 2-10, m is 1-9, p is 2-8, and R is an unsubstituted or substituted alkyl, aryl, aralkyl, alkenyl, cycloalkyl, cycloalkenyl or heterocyclic radical, of not more than 20 carbon atoms; also methods of making these products by the reaction of a polychlorofluoro-carboxylic acid halide with an organo-metallic compound, or of a polychlorofluorocarboxylic acid halide or anhydride with an aromatic compound in presence of a Lewis acid catalyst, or of the nitrile of the acid with a Grignard reagent, or of an ester of the acid with a compound containing active hydrogen and an alkaline reagent, or by additive reaction of a perchlorfluoro-olefine with an aldehyde, or by the oxidation of a secondary polychlorofluoro alcohol.  In examples, the ketones Cl(CF2CFCl)3CF2COC6H5 (which yields a surface-active agent by reduction and sulphonation), Cl(CF2CFCl)3CF2COC4H9 (the semicarbazone of which is described), Cl(CF2CFCl)3CF2-CO.CH(C3H7) CO.CF2(CFClCF2)3Cl, propy 2 : 4 : 5 - trichloro - octafluoropentyl ketone, Cl(CF2CFCl)2CF2CHFCF2COCH3, ethyl 2 : 4 : 6 : 7 - tetrachloroundecafluoroheptyl ketone, methyl 2-hydro-4 : 5-dichloro-octafluoropentyl ketone, Cl(CF2CFCl)3CF2COC6H5, C6H5CO-(CFClCF2)3COC6H5, 21 - furoyl - 2 - hydro - 4 : 6 : 7 - trichloroundecafluoroheptane, cyclohexyl 2 : 4 : 6 : 7 - tetrachloroundecafluoroheptyl ketone, Cl(CF2CFCl)3CF2.CO.CH2CH = CH2 and a cyclopentenyl compound similar to the latter are obtained, each by one of the methods given above from the corresponding perchlorofluorocarboxylic chlorides, ester, olefine, nitrile, carbinol, anhydride, and dicarboxylic chloride, with the required reagents of the kind specified above.  All the above-described methods are described in detail and exemplified.  3 : 5 : 7 : 8 - Tetrachloroundecafluoro-octanoic anhydride is prepared by refluxing the corresponding acid (2 mols.) with sulphur trioxide (1 mol.), extracting the sulphuric acid layer with chloroform, and fractionally distilling the combined organic layers.
Patent GB-727489-A (GB)
Title: Process and apparatus for the continuous extraction of solid substances with solvents in basket conveyor extractors
IPC: C11B1/10
Filed: 1952-06-06
Abstract: In a process for the solvent extraction of fatty oils from solids containing them in basket-conveyer extractors, all the ascending baskets are vertical and are used for counter-current extraction only, the following baskets form an independent draining zone with the baskets horizontal or inclined, some of the p  descending baskets are vertical, and the remainder of the descending baskets are led in a horizontal or downwardly inclined direction.  The arrangement of the last group of baskets allows of a free discharge from each of them of the miscella or solution, which may be enriched by selective pumping into the inclined or horizontal part in counter-current.  In the form shown, an endless chain of extraction baskets 1-30 are arranged in a housing 31 and are continuously moving in the direction of the arrows, the housing being provided with a supply device 32 for the solids, a supply conduit 33 for fresh solvent and a supply conduit 34 for miscella of various concentrations.  The baskets 1-8 form the vertical descending section, baskets 9-14 the downwardly inclined section, baskets 15-26 the ascending vertical section, and baskets 27-29 the horizontal or inclined draining section with the basket 30 at the emptying position.  The baskets are disposed in the above arrangement by means of four deflecting wheels 50-53.  The baskets 1-8 only are used for the filtration of the miscella. Chambers 38-41 are provided in the lower part of the housing, chambers 38-40 collecting the draining solution of the baskets descending in the inclined section and chamber 41 collecting the miscella draining from the baskets descending in the vertical section.  Overflows 42 connect the chambers 38-40, and pumps 43-45 re-circulate the miscella to the baskets in the inclined section to flow in counter-current therethrough, the miscella being supplied in <PICT:0727489/III/1> the form shown to pairs of baskets.  Pump 46 pumps the miscella from chamber 41 through pipe 47 to a distillation apparatus or partly to the supply conduit 34.  The pump 45 can selectively pump the miscella from chamber 10 to the supply conduit 34.  A trough 37 is arranged beneath the baskets 27-29 of the draining section and directs the miscella therefrom into the vertical ascending baskets.  An intermediate space may be provided between the emptying station and the filling station for washing the screens at the bottom of the baskets with miscella or solvent, the washing liquid being re-introduced into other sections of the apparatus.
Patent GB-241519-A (GB)
Title: Improvements relating to brakes with internal shoes
IPC: F16D65/22
Filed: 1925-06-04
Abstract: 241,519. Schuricht, O. Oct. 15, 1924, [Convention date]. Blocks acting on drums; compensating for wear. - Compensation for wear of the shoes of an internal expanding brake is effected by an adjustment of the operating- cam from the outside of the brake drum. The cam spindle a, which is in screwthreaded engagement with a rotatable sleeve c on which is secured a lock nut d, is provided with a wedgeshaped heads s engaging correspondingly shaped wedge members b, in recesses r of which the ends t of the brake shoes rest in the release position of the brake. Adjustment is effected by rotating the nut d and aleeve c, whereby the spindle a and wedge s are retracted, and the wedges b and ends t of the brake shoes thereby separated to a greater extent.
Patent GB-935805-A (GB)
Title: Magnetic core shift register
IPC: G11C19/06
Filed: 1962-04-16
Abstract: 935,805. Circuits employing bi-stable magnetic elements. AMP Inc. April 16, 1962 [May 10, 1961], No. 14538/62. Class 40 (9). [Also in Group XIX] The magnetic core shifting register described in Specification 899,366 is modified by the provision in each core of two transmit apertures, each linked by transfer windings with receive apertures in the adjacent cores, shifting of stored information in one direction or the other through the register being determined by selectively priming one or other of the transmit apertures. A complete shifting register is shown in parts in Figs. 1a to 1c, in which Fig. 1a illustrates the arrangement of transfer windings 16, 34, 22, 30, Fig. 1b the odd and even core clear and hold windings 50, 52, 54, and Fig. 2c the forward and reverse priming windings 60, 62, the two priming windings being connected in series with a winding 64 passed through all the main apertures to offset the effects of excessive priming currents. The cores 11-13 are triplicated in the Figures and each have four minor apertures only three of which are wound. In operation, the flux in the inner and outer core limbs adjacent each transmit minor aperture are in the same direction when a core is cleared, the flux in the inner limb is reversed when the core is set by an input pulse, and the flux in the outer limb is reversed and that in the inner limb restored to its original direction when the priming winding through a transmit aperture is pulsed. As the transfer windings are each coupled with an outer limb of respective transmit apertures, the operation of clearing a core produces a reversal of flux in an outer limb, and hence induces a voltage in a transfer winding, only if the associated priming winding was previously energized. The direction of shift through the register is determined by the arrangement of the advance windings which have double the number of turns through a transmit aperture as through a receive aperture. Consequently, for a left-to-right shift by way of transfer windings 16 and 22, the priming winding 60 is energized intermediate odd and even clear pulses in windings 50 and 52. Similarly for right-to-left shift through windings 30 and 34, prime winding 62 is energized. A modified circuit is shown in Fig. 2, all windings being shown except for input windings which would be threaded through the upper minor aperture of core 101 and the lower minor aperture of core 106. The transfer windings 114-120 in this embodiment are common to three successive cores, and circulating feedback loops 136, 142 are provided for each direction of shift. In view of the transfer winding arrangement, the setting by one core of the next core but one is prevented by a clearing operation on alternate cores after data is advanced from one even or odd group of cores to the other group.
Patent GB-425396-A (GB)
Title: An improved process for making high molecular acetals
Filed: 1934-05-14
Abstract: High molecular acetals suitable for use in the treatment of textiles, in printing inks, in cosmetic products &c., are obtained by causing high molecular alcohols to interact with aldehydes in monomeric or polymeric form at temperatures above 50 DEG  C., advantageously in presence of dehydrating agents such as sulphuric and hydrochloric acids.  The products are suitable for making emulsions of mineral oil hydrocarbons, paraffin wax, and neutral fats and oils, which may be used for making dressing, sizing lustering and softening agents, wax masses, leather dressings and pastes for cosmetics.  In the non-emulsified form the solid or liquid products may be used for superfatting soaps, making printing inks mordanting, polishing and as lubricants.  According to examples: (1) cetyl alcohol is condensed with paraformaldehyde in concentrated sulphuric acid and the product separated; it may be made into an emulsion with potash soap and water, for scrooping artificial silk; (2) lauric alcohol is condensed with paraldehyde in hydrochloric acid; the product, a liquid wax, may be used as a lubricant and addition to printing inks, and with linseed oil, beeswax and ammonium linoleate yields a size for artificial silk.  The Specification as open to inspection under Sect. 91 specifies the preparation of acetals also from fat and wax alcohols in general, naphthene alcohols, sterines, benzyl alcohol, terpene alcohols, and ricinoleic acid and its derivatives and gives further examples of the condensation of methyl hexaline with formalin and ricinoleic acid and its methyl ester with paraformaldehyde.  The use of the products in soap emulsions for lustering velvet, in mixtures for lustering paper and in a mixture for a nitrocellulose lacquer, is also described.  This subject-matter does not appear in the Specification as accepted.ALSO:High molecular acetals suitable for use in making emulsions of mineral oil hydrocarbons, paraffin wax, neutral fats and oils, as lubricants and for superfatting soaps, are obtained by causing high molecular alcohols to interact with aldehydes in monomeric or polymeric form at temperatures above 50 DEG C., advantageously in presence of dehydrating agents such as sulphuric and hydrochloric acids.  In one example the product obtained by condensing cetyl alcohol with paraformaldehyde in presence of concentrated sulphuric acid is used for making an emulsion of potash soap and water for scrooping artificial silk.  The product obtained similarly from lauryl alcohol is used as a lubricant.  The Specification as open to inspection under Sect. 91 specifies among other products, the use of the materials in soap emulsions generally.  This subject-matter does not appear in the Specification as accepted.
Patent GB-518116-A (GB)
Title: Improvements in or relating to electromagnetic switching devices for change gear
IPC: G05G9/047
Filed: 1938-05-16
Abstract: 518,116. Change - over switches. SOC. DES ENGRENAGES DE PRECISION PROCEDES MAAG. May 16, 1938, Nos. 14583 and 14584. Convention dates, May 15, 1937 and Sept. 16, 1937. [Class 38 (v)] A switching device for use in connection with electromagnetic gear-changing apparatus for motor cars comprising a lever moving in a ball- and-socket joint the lower end of the lever being guided in grooves forming a polygon, the sides of which may be curved; the contacts are arranged at the corners of the polygon and operated by the lever. Fig. 3, shows an arrangement which the lever. 3 turns in a ball-and-socket joint 2 in a casing 1 and carries at its lower end a spring-pressed member 6 the point in which engages grooves in a plate 5. These grooves are arranged in a square at the corners of which are arranged the contacts 8. The groove connecting the contacts corresponding to the highest and lowest speeds is preferably curved inwards so as t) pass through the centre of the plate, which corresponds to the neutral position. Depressions in the plate 5 retain the member 6 in the neutral or contact-making positions until positively moved by the lever 3. The contacts 8 consist of spring blades; when the device is used with gear-changing means of the Cotal type three blades are employed two of which are first brought into contact with other and then with the third; by connecting the blades appropriately it can be ensured that the connections occurring in operating such gears are made in the proper order. Several forms of groove forming irregular polygons with re-entrant sides for use for the different numbers of speeds are described. The member 6 may be replaced by a conducting shoe which bridges contacts fixed to the plate 5. If more than three contacts are to be bridged at once those in excess of three are resilient so that the shoe can rest on the three fixed contacts and make contact with the remainder. The casing is connected to its base 14 in such a way as to be adjustable about its axis.
Patent GB-770250-A (GB)
Title: Improvements in or relating to machines for treating textiles in liquids
IPC: D06B3/34
Filed: 1955-05-20
Abstract: 770,250. Feeding webs. COMERIO ERCOLE SOC. PER AZIONI. May 20, 1955 [May 21, 1954], No. 14592/55. Class 100(1) [Also in Group XXIV] A machine treating textile material by passing it through washing tanks comprises a common input shaft, driving each of a number of cylinders, through worms and worm gears 1, 2, each worm gear being formed as an internally toothed annulus meshing planet gears D on a driven planet carrier C connected to a cylinder, the planet gears also meshing a reaction sun gear B whose rotation is restrained by a slipping band brake 3, 4 automatically applied more or less strongly according to the tension in the textile material, which tension is accordingly kept constant. The end of the brake band 4 is connected through links 6, and through linkwork (not shown), to a roller E engaging the textile material t. As the material t stretches, so the roller E moves and applies the brake band 4 to the brake drum 3
Patent GB-925983-A (GB)
Title: Rotor for beater mills
IPC: B02C13/28
Filed: 1961-04-21
Abstract: 925,983. Beater mills. BUTTNER-WERKE A.G. April 21, 1961 [April 23, 1960], No. 14606/61. Class 59. In a rotor for beater mills comprising discs 2 arranged at intervals on a driving shaft 1 and between which are situated beaters 3, each having on one longitudinal edge a recess through which a pin 4 is guided, the recess is situated in or substantially in the middle of the longitudinal edge of the beater while the opposite longitudinal edge of the beater partially masks a slot 5 in the adjoining disc 2 in such a manner that the longitudinal beater edges and the opposite boundary edges 8 of the slots approach one another slightly towards the periphery of the discs whereby, as viewed in the axial direction, a space which narrows towards the periphery is provided for accommodating a wedge 6. The rotor is subdivided into sections A, B, the pins 4 in section A being situated in front of the beaters and the pins in section B being situated behind the beaters, in the direction of the rotation of the rotor. The beaters of sections A, B are offset relatively to one another.
Patent GB-752845-A (GB)
Title: Improvements in or relating to articles having metallic members soldered together
IPC: H01J5/28
Filed: 1954-05-19
Abstract: 752,845. Soldered joints. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. May 19, 1954 [May 19, 1953], No. 14633/54. Class 83(4). In a method of soldering together two annular members 1, 4 of different coefficients of expansion, the abutting surfaces 3 are inclined and one of the members 1 has its wall 7 weakened to neutralize the stresses set up during heating and cooling. In joining an ironnickel-cobalt alloy seal 4 of a glass body 6 to the copper anode 1 of an electron discharge device, the ends of the parts have annular abutments 8, 9 which engage one another on heating so that the parts are held in alignment during the soldering process.
Patent GB-1118322-A (GB)
Title: Improved pick breaking apparatus
IPC: B29D30/38
Filed: 1966-04-01
Abstract: 1,118,322. Finishing fabrics. GOODYEAR TIRE & RUBBER CO. 1 April, 1966 [1 April, 1965; 10 Dec., 1965], No. 14661/66. Heading D1S. Apparatus for breaking picks in a tyre cord fabric comprises a pair of parallel rolls 20, 21 each having annular radially outwardly extending flanges 22, 23 spaced axially along the periphery thereof, the flanges 22 being adapted to extend into the spaces between the flanges 23, and means to effect relative axial shifting between the rolls 20, 21 thereby to change the spacing between the flanges 22, 23. The end 20a of the roll 21 is journalled in a bearing 25 connected to a slide 25a reciprocable on a column 25b. Arms 26, 29 are pivoted to the slide 52a and abutment 30, respectively, and to each other and are movable between the full and chain-dotted line positions of Fig. 2 by a piston rod 28 to raise and lower, respectively, the roll 21. The rod 28 may be actuated to lower the roll 21 if the feed of the fabric (F), Fig. 1 (not shown), from calender rolls (15), (16) is arrested. The roll 20 is adjustable vertically by a mechanism 30a which comprises a worm 35 on a shaft 36 pinned to a shaft 37 rotatable by a hand wheel 38. The worm 35 meshes with a worm (45), Fig. 3 (not shown), supported against axial movement and threaded onto a lifting rod 46 received in a slide 49 which is reciprocably mounted on the column 25b. A pin 48 fixes the rod 46 against rotation relative to the slide 49. Rotation of the hand wheel 38 results in raising or lowering of the shaft 46 and hence the roll 20. The amount of vertical movement of the shaft 46 is indicated on a scale 42 by a pointer 41 on a block 40 threaded on a screw 39 pinned to the shaft 36.  The roll 20 is adjustable horizontally by a mechanism 31 which comprises a plate 50 capable of being locked to or released from a plug 56 threaded on a portion 52a of the shaft 52 and welded to the roll 20. A pin 51 is provided to lock the plate 50 to the shaft 52 to rotate therewith. Rotation of a nut 62 shifts a pin 60 into or out of engagement with an aligned aperture 58 in the plug 56 so as to permit or prevent rotation between the plate 50 and the plug 56. Rotation of the plate 50 in its unlocked position with respect to the plug 56 causes axial shifting of the roll 20. The amount of axial movement of the roll 20 is indicated by a pointer 53 on the plate 50 overlying a scale 54a on the plug 56. The apparatus is used to break transverse pick threads of a fabric (F), Fig. 1 (not shown), after a rubbery coating (R) has been applied thereon by calender rolls (15), (16) to form a tyre cord fabric. A second calender (not shown) may be employed as described in Specification No. 480,134. In a modification (not shown), the mechanisms 30a. 31 are applied additionally to the lower roll 21.
Patent GB-1438270-A (GB)
Title: Adjustable bases notably for topographical apparatus
IPC: G01B5/00
Filed: 1975-04-09
Abstract: 1438270 Levelling head ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE) 9 April 1975 [11 April 1974] 14706/75 Heading G1F An adjustable base for a theodolite, alidade or level, comprises a case 1 having a base 1b and an open top, a movable member 3 on which is mounted, in use, the theodolite &c., and which bears upon the base 1b via balls 7, 17, 18, ball 7 having a centre which defines a fixed swivel point for the member 3, whilst balls 17, 18 are movable by means of screws 11, 12 respectively within passages, so as to move the member 3 so as to achieve the desired alignment thereof. The balls 17, 18, passages and screws 11, 12 lie in perpendicular vertical planes whose intersection coincides with the centre of the swivel ball 7. At least one spring 24 biases the member 3 into abutment with the balls. The passages are each defined partly in the base 1b and partly in the opposite face of the member 3, a first passage comprising a flat surface 22 and a V-sectioned groove 23 which converge towards ball 7 whilst the other comprises similarly converging V-sectioned grooves 21, (19), Fig. 3 (not shown). Thus movement of either ball 17, 18 causes tilting of the member 3 about the axis defined by the other two. The ball 7 may, as shown, be eccentric in relation to the vertical axis of the movable member 3. A plate 6 on base 1b may be provided with an internal thread to allow mounting on a tripod.
Patent GB-1127709-A (GB)
Title: Cyclone purifier
IPC: B04C5/14
Filed: 1966-04-04
Abstract: 1,127,709. Cyclone separators. R. W. ROBINSON. 4 April, 1966 [1 Nov., 1965], No. 14893/66. Heading B2P. A cyclone purifier for cleaning liquid or gas suspensions comprises a conically tapering casing 10, Fig. 3, which is arranged with its base inlet opening into a pressure chamber 34 into which the suspension to be purified is introduced and flows freely into the cyclone casing, and which is provided with a reject outlet 14 at the apex and with an accept outlet in the form of a pipe 16 at the base, a directing and circulation initiating element 28 being mounted in the casing and arranged to impart a tangential velocity component to the inflowing suspension, the element 28 comprising a helical blade with a right or left hand pitch arranged between the casing 10 and the pipe 16 and extending over substantially 360‹. As shown, a battery of cyclones 10 is arranged in two parallel rows and the base of each cyclone is secured to the bottom of the pressure chamber 34 to which the suspension is fed via a pipe 11. The accept outlet pipes 16 open into a common upper outlet chamber 36 separated from the lower chamber 34 by a partition wall 3 8and having an accept discharge pipe 46. The apex ends 14 of the cyclones open into a common reject box 40. The helical elements 28 in one row may be of opposite hand pitch to those of the other row. A number of such batteries may be connected in series or parallel. The cyclones may be used as hydrocyclones for the purification of paper pulp. As shown in Fig. 2a, the helical element 28a fills up completely the annular space between the casing 10 and the pipe 16. In alternative constructions, Figs. 2b-2d (not shown), the helical element is spaced from the casing 10 and/or the pipe 16.