baber/WOPTO huggingface dataset:
Patent GB-831934-A (GB)
Title: Esters of substituted benzilic acids and methods for producing same
Inventor: CAVALLA JOHN FREDERICK
IPC: C07D207/12
Filed: 1958-05-28
Abstract: The invention comprises benzilic acid esters of formula <FORM:0831934/IV (b)/1> where the lower alkyl group has 1-3 carbon atoms and where X represents halogen or C1-3 alkyl, and acid-addition products thereof such as those with hydrohalic, sulphuric, acetic, benzoic, citric, maleic, malic, gluconic and ascorbic acid.  They act as nervous system drugs.  They may be prepared by: (a) esterinterchange between an alkyl X-substitutedbenzilate and a 1-alkyl-3-pyrrolidinol, preferably under anhydrous conditions in the presence of an alkaline catalyst in an inert solvent; the starting material esters may be prepared by conventional esterification of the acids or by the addition of an X-substituted phenylmagnesium halide to an alkylphenyl-glyoxylate followed by hydrolysis; (b) an X-substituted benzilic acid is converted to the acid halide, e.g. by thionyl chloride in methylene chloride, and this esterified with a 1-alkyl-3-pyrrolidinol followed by mild hydrolysis, e.g. with water; (c) an X-substituted 3-pyrrolidinyl benzilate is N-alkylated by conventional methods; the required 3-pyrrolidinyl benzilate may be obtained by catalytic hydrogenation of the N-benzyl benzilate.  In examples: 1 - ethyl - 3 - pyrrolidinyl o-, m- and p-methylbenzilates, and their hydrochlorides, p-bromobenzilate and its hydrochloride, p-chlorobenzilate and its hydrochloride, hydrobromide and citrate, and o- and m-chlorobenzilate hydrochlorides, 1-methyl-3-pyrrolidinyl m-chlorobenzilate hydrochloride, and 1 - propyl - and 1 - isopropyl - o - chlorobenzilate hydrochlorides are prepared by method (a) using sodium in benzene as catalyst; 1-ethyl-3-pyrrolidinyl p-chlorobenzilate hydrochloride is prepared by method (b); and 1-ethyl-3-pyrrolidinyl p-methylbenzilate hydrochloride is prepared by method (c).  Starting materials prepared are: 1-ethyl-, 1-propyl-, 1-isopropyl-, 1-benzyl- and 1-methyl-3-pyrrolidinol by reacting the appropriate amine with 1,4-dichlorobutan-3-ol; ethyl o-, and m-methylbenzilate by esterification of the acids with ethanol/HCl; ethyl p-bromo- and o-, m- and p-chlorobenzilates from p-bromophenylmagnesium bromide and o-, m- and p-chlorophenylmagnesium bromide, respectively, and ethyl phenylglyoxylate followed by hydrolysis, e.g. with HCl; a  - chloro - a  - phenyl - a  - p - chlorophenylacetyl chloride by the action of thionyl chloride on p-chlorobenzylic acid; 1-benzyl-3-pyrrolidinyl-p-methylbenzilate as in Example (1).  Specification 821,436 is referred to.
Patent GB-1292092-A (GB)
Title: Improvements in or relating to cages for rolling bearings
IPC: F16C33/54
Filed: 1971-05-25
Abstract: 1292092 Bearings SKF KUGELLAGERFABRIKEN GmbH 25 May 1971 [27 May 1970] 17058/71 Heading F2A A rolling bearing cage comprises pockets, each of which has at least one abutment surface 6 at one side thereof and a plurality of projections 4, 5 at spaced locations along the opposite side thereof, adjacent projections extending on opposite sides of the pitch circle, thereby to retain the rolling elements 2. The side flanges 11  may extend inwards or outwards, and may be bent back upon themselves.
Patent GB-834242-A (GB)
Title: Process for the removal of paraffin waxeí¡í¡ lubricating oils
Filed: 1956-06-01
Abstract: A process for removing paraffin waxes from mineral lubricating oils comprises treating the oil with solid urea moistened with 4 to 6 wt. per cent of methanol to form "inclusion compounds" of urea and wax; separating the "inclusion compounds" and washing and extracting them with a solvent for the wax which is a non-solvent for urea at a temperature below the melting-point of urea; and reusing the thus-regenerated urea in the process until it becomes insufficiently active; the whole process being effected in the absence of water. The extraction of the wax from the "inclusion compound" may be effected with xylene at 90 DEG  to 100 DEG  C. and atmospheric pressure.  Very viscous oils may be diluted with liquid low molecular weight branched chain hydrocarbons, e.g. iso-octane.  The urea usually becomes insufficiently active after 7 to 10 cycles of the above process.  It is reactivated by melting it into 2 to 4 parts by weight of the oil being treated at 130 DEG  to 135 DEG  C.; separating the melted urea and dissolving it in water at 40 DEG  to 60 DEG  C.; adjusting the pH of the resulting solution to break the emulsion into an oil layer and an aqueous layer; and crystallizing pure urea from the aqueous layer.
Patent GB-891517-A (GB)
Title: Oil burner
IPC: F23D11/00
Filed: 1960-05-16
Abstract: 891,517. Liquid fuel burners. LENNOX INDUSTRIES Inc. May 16, 1960 [Feb. 9, 1960], No. 17183/60. Class 75(1) An oil burner comprises a draft tube 10 supplied with air from a scroll housing 26 containing a blower 36 driven by an electric motor 38, and a fuel pump P rigidly secured to the burner housing H by a bracket 68 and driven from the electric motor 38 by a belt 94. The scroll housing has a tubular inlet 42 covered by an air control cover 44 mounted on a bolt 46 threaded through a boss 50 for adjustment of the cover. A curved side wall 24 of the scroll deflects the air from the blower into a chamber 22 at the inlet end of the draft tube 10. The chamber 22 contains a baffle 29 which imparts a vortex effect to the air. A projection 66 of the pump P is received in a tubular boss 70 on the bracket 68 and is retained therein by a set screw 72. The fuel pipe 60 from the pump is connected to a pipe 64 leading to the burner nozzle 34 and supported by a fitting 63 secured by a screw 65 to the burner housing. The pipe 64 passes through a slot 67 in the housing enabling the pipe 64, the nozzle 34, an air deflector 30 mounted on the nozzle and ignition electrodes 116 to be removed from the draft tube 10. The belt 94 passes over a pulley 92 on the motor shaft, a pulley 90 on the pump shaft and an idler pulley 96 mounted on a spring loaded pivoted lever. An ignition transformer 104 is pivoted by a hinge 106 to the burner housing H and serves as a closure therefor and is retained in closed position by a captive screw 124 engaging a threaded hole 126 in the housing. A pair of high tension terminals 110 on the transformer contact a pair of contact springs 112 connected with the ignition electrodes 116. A sheet metal cover 118 for the electric motor is secured at one side by screws 120 to the burner housing and its other side has a flange 122 which is retained in position by the transformer when in closed position. A starter switch 132 and a terminal block 128 are housed in the chamber 22 at the inlet end of the draft tube 10.
Patent GB-204125-A (GB)
Title: Improved means for cleaning bricks, paving blocks & setts, & the like
IPC: B28D1/00
Filed: 1922-06-22
Abstract: 204,125. Fenney, T. F. June 22, 1922. Finishing building and paving blocks.-A machine for cleaning and trimming bricks and paving blocks consists of a pivoted hand-lever B, Figs. 1 and 2, with teeth or cutters which may be fixed or relatively adjustable to act on opposite sides of a block simultaneously, and a sliding table L set by a rack and pinion and carrying a clamping claw N operated by a foot lever O. The lever B may end at the pivot F and may be vertical and oscillated from side to side. Fig. 4 shows a modification in which the toothed jaws C are adjusted by a U-shaped member A sliding on the lever B and with pins J' engaging inclined slots in extensions D on the jaws; alternatively, the portions D may be operated by a right-and-left handed screw E<2>, as shown on the left of Fig. 4. The cutters, Fig. 6, either single or double ended, are spikes C<1> and blades C bolted on the lever B and adjusted by set-screws S, and used together or singly.
Patent GB-201711-A (GB)
Title: Improvements in and relating to football, tyre and similar pumps or inflators
IPC: F04B33/00
Filed: 1922-06-22
Abstract: 201,711. Hill, H., and Hill, Ltd., E. H. June 22, 1922. Actuating pumps by foot power.-A pump for inflating tyres, footballs &c., of the kind in which the barrel is mounted verticallv on a base and a spring-pressed piston working in the barrel is connected by a crosshead to pivotal links which are connected' to a foot operated lever has its piston-rod guided entirely by the connections between the cross-head and the lever. The pump may be, simple or compound. The pump shower comprises a vertical barrel e on a base which carries also lugs b to which levers c carrying a foot-plate d are pivoted, these levers being connected by links to the cross-head h of the pump pistonrod, the up-stroke of which is effected by springs f. External inlet and outlet valves m, n are provided on the barrel, the air being delivered through a flexible connection to a nozzle p mounted on a portable base q which may be fastened to a bench &c. According to the Provisional Specification, the upstroke is effected by a spring within the barrel.
Patent GB-453721-A (GB)
Title: Improvements in radiators for heating buildings
IPC: F28D1/02
Filed: 1935-06-17
Abstract: 453,721. Radiators for heating buildings. BEESTON BOILER CO., Ltd., and SMITH, G., Beeston, Nottinghamshire. June 17, 1935, No. 17363. [Class 64 (ii)] In a heat radia. tor of the panel type, a flat unbroken radiating surface 1 is backed by triangular waterways 2 which may have corrugated walls. Lugs or brackets 7 are provided at the back of the radiator to receive bolts 8 which secure the radiator to a wall 9. The area of the surface 2 which is backed by waterways, including the thickness of their side walls, is <1>/3 to ¢ that of the total area, and the inside width of each waterway is at least 1“ times as great as the inside depth. Specification 297,043, [Class 64 (ii)], is referred to.
Patent GB-123502-A (GB)
Title: Improvements in and relating to Textile Belting.
IPC: D06M13/525
Filed: 1918-10-25
Abstract: 123,502. Marks, E. C. R., (Aktieselskabet Roulunds Fabriker). Oct. 25, 1918. Belts.-Textile belting is impregnated with linseed oil, asphalt, balata, &c., freed from hygroscopic substances, and dried by a continuous operation. The belts are placed in a boiler and impregnated in a known manner by material contained in a solvent introduced after air has been exhausted. The superfluous fluid is then exhausted and steam is introduced. This causes the evaporation of the solvent and the exudation of hygroscopic substances from the texture of the belts, the spaces left being filled by the impregnating-material. In this way, the impregnating process is only finished when the fibres of the belts have assumed their final form. Liquid hydrocarbons and turpentine may be added to keep the impregnating-material in a liquid state during the steaming. These are removed by raising the temperature of the steam. The belts are then dried bv heating under a reduced pressure. The solvent is passed with the steam into a condenser and recovered.
Patent GB-802963-A (GB)
Title: Improvements relating to hydraulic or pneumatic rams
Inventor: REYNOLDS LIONEL ARTHUR
IPC: F15B15/26
Filed: 1956-06-07
Abstract: 802,963. Pneumatic rams. TANGYES, Ltd. June 3, 1957 [June 7, 1956], No. 17577/56. Class 8(2). [Also in Groups XXII, XXIV, XXIX and XXX] A pneumatic ram 5 and cylinder 4 has means for locking the ram relative to the cylinder comprising a screw threaded spigot 3, axially extending from the base of the cylinder, a tapped socket formed axially in the ram for the reception of the spigot 3, whose threads 3a co-operate reversibly with threads 5a cut in the neck 5b of the socket, and a locking ring 6 at the upper end of the cylinder 4, with screw threads 6a which co-operate non-reversibly with screw threads 5c formed externally on the ram. When locking is required, the locking ring 6 is rotated so as to bring the load supporting flanks of the threads 5c and 6a into contact. The locking ring 6 may be biased towards its locked position.
Patent GB-1172765-A (GB)
Title: Improvements in or relating to Electroplating Aluminium with Copper or Chromium
Inventor: LEVINOS STEVEN
IPC: C09D133/08
Filed: 1967-04-17
Abstract: 1,172,765. Electro-plating. GAF CORP. April 17, 1967 [April 18, 1966; July 5, 1966], No.17588/67. Heading C7B. One side of an Al sheet or plate, the surfaces of which have been rendered oxide-free e.g. by dipping in NaOH solution, is provided with a Cu or Cr coating, e.g. to serve as a support for a light-sensitive, resist-forming layer for photomechanical printing plates, by flow-coating the other side with a protective alkaline-soluble, adhesive acrylic resin layer, immersing the coated sheet or plate as the cathode in an acid Cu or Cr plating bath, e.g. of the copper cyanide, sulphate, fluoborate or pyrophosphate type, and after withdrawal and preferably rinsing, removing the resin layer with an alkaline medium (pH at least 7À5) e.g. by swabbing with a pad soaked in ammonium or alkali metal hydroxide or Na 3  PO 4  solution. The resin contains on a molar basis 80-99% acrylate units, e.g. a mixture of methyl, ethyl and butyl acrylate, and 1-20% (meth) acrylic acid units, and may be applied as a solution in isopropyl alcohol, methanol, ethanol, acetone, diacetone alcohol, dioxane, cyclohexanol or ethyl acetate, with oleic acid and a surface-active agent.
Patent GB-656136-A (GB)
Title: Improvements in or relating to reversible toothed gears
IPC: F16H55/08
Filed: 1947-07-04
Abstract: 656,136. Toothed gearing. ROANO, A. July 4. 1947, No. 17690. Convention date, July 8. 1946. [Class 80(i)] In order to obtain increased contact area between the teeth in reversible gear pairs of the type described in Specifications 321,672, [Class 80(ii)], and 376,791, in which the pinion and wheel have helicoidal or bihelicoidal teeth with different inclinations the tops of the flanks of the wheel teeth, Fig 8, are cut away towards the pitch circle along a curve of radius R<SP>1</SP> corresponding to the curvature of the medium zone of the flanks of the pinion teeth and the tops of the flanks of the pinion teeth, Fig. 7, are cut away along a curve of radius R corresponding to the curvature of the medium zone of the flanks of the wheel teeth. The flanks of the wheel teeth are also cut back at their base at g.
Patent GB-543279-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/255
Filed: 1940-12-18
Abstract: 543,279. Condensers. SPORING, P. A., and TELEGRAPH CONDENSER CO., Ltd. Dec. 18, 1940, No. 17832. [Class 37] To enable condensers to be manufactured within close tolerances of the desired capacity, a tubular condenser 1 is made with definitely less capacity and, after measurement, is permanently associated with a second condenser 4 chosen from a batch of much smaller capacities to bring the combined condenser to standard. In the example, the smaller condenser is slipped into the larger condenser, and after encasing in a paper &c. tube, spiral terminal wires are crushed, at each end, on to the projecting lugs or foils 3, 5 to connect the condensers in parallel.
Patent GB-145633-A (GB)
Title: Improvements relating to a pressure regulator for compressed gas, blow-pipes and so forth
IPC: F23D14/46
Filed: 1920-06-30
Abstract: 145,633. Sacharelo, M. Dec. 1, 1913, [Convention date]. No Patent granted (Sealing fee not paid). Fluids, regulating pressure of.-A pressure-reducing device particularly applicable for use with blowpipes for decarbonising the cylinders of internal-combustion engines, comprises a series of baffles and a series of slightly compressed washers. The baffles 7 are formed in a tube 5 having one end closed by a perforated plate 6 and housed in the part 2 of the casing which is connected to the gas inlet. The outlet is formed on a member 3 screwed to the part 2 and adapted to contain a series of washers 9 arranged between a pair of perforated plates 8, 10. The washers 9 are preferably of chamois leather, doe skin, or sheep skin, but they may be of asbestos or cloth.
Patent GB-823341-A (GB)
Title: Improvements in or relating to wheel rims
IPC: B60B25/22
Filed: 1957-06-05
Abstract: 823,341. Tubeless tyre wheel rims. KELSEY-HAYES CO. June 5,1957 [Aug. 13, 1956], No. 17900/57. Class 144 (2). In a tubeless tyre wheel rim 1 comprising a rim base 4 with a detachable tyre retaining ring 2 at one edge retained against axially outward displacement by a clamping member 3, and sealed to the rim base by a sealing member 28, means 18, 29, 30 are provided, which in one circumferential position of the ring on the base, limits axially inward movement of the ring 2 to prevent breaking of the seal, and which, in another circumferential position of the ring 2, permits axially inward movement thereof sufficient to permit assembly or removal of the sealing member 28 and the clamping member 3. As shown, the rim base 4 has an integral tyre-retaining flange 5 at one edge and a V-sectioned gutter 6 at the other terminating in a radial flange 9 of smaller outer diameter than the cylindrical portion 8 of the base 4. The detachable ring 2, comprises a tapered bead seat 15 and a tyre-retaining flange 16 which present respectively a sloping radially inner surface 19 and a radial axially outer surface 17 connected by a convex surface 20. The clamping member 3 comprises an endless ring having sloping and radial surfaces 26, 25 to engage respectively the sloping surface 13 of the gutter wall 10, and the radial flange 9, and concave and radial surfaces 24, 23 to engage respectively the convex and radial surfaces 20, 17 of the detachable ring 2. The sealing member 28 comprises a rubber circularaction ring which seats in the well 12 of the gutter in sealing engagement with the sloping surfaces 14, 13 of the gutter walls 11, 10 respectively and with the sloping surface 19 of the detachable ring 2. The surface 9 is of lesser slope than the gutter wall surface 13 so that in the fully assembled position of the rim the sealing member 28 is wedged firmly therebetween. The cylindrical portion 8 of the rim base 4 is provided with three circumferentially equi-spaced radially outward projections 29 which form abutments for the axially inner edge 18 of the detachable ring 2 to limit axially inward movement thereof; to permit assembly of the sealing member 28 and the clamping ring 3, notches 30, Fig. 6, are provided in the bead seat portion 15 of the detachable ring 2 which, on rotation of the ring 2, may be aligned with the projections 29, Fig. 5. This portion is indicated by alignment of arrows marked on the external surfaces of the ring 2 and the gutter wall 10. The endless clamping ring 3 is buttoned into the gutter 6, being provided with diametrically-opposed recesses 27 to facilitate such operation. Additionally, a recess 31 is provided to receive a prying tool for removal purposes.
Patent GB-433908-A (GB)
Title: Improvements in runner boxes for downpouring metal for forming ingots and the like
IPC: B22D7/00
Filed: 1934-06-18
Abstract: 433,908. Casting composite articles. GOURLEY, J. H., 30, Kenwood Park Road, Sheffield. June 18, 1934, No. 17934. [Class 83 (i)] A runner for an ingot mould has longitudinal bars 2 of mild or wrought steel cast in. The runner may be divided into two or more parts longitudinally and the mating edges have corresponding recesses and projections 7.
Patent GB-355855-A (GB)
Title: Improvements in machines for sorting or cleaning raw cotton prior to ginning
IPC: D01G9/00
Filed: 1930-06-11
Abstract: 355,855. Sorting and cleaning raw cotton prior to ginning. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES, Mulhouse, Haut-Rhin, France.-(Assignees of Mieg, C.; 1, Rue du Barrage, Mulhouse, Haut-Rhin, France.) June 11, 1930, No. 17981. Convention date, June 11, 1929. [Classes 120 (i) and 120 (iii).] Raw cotton is cleaned and sorted prior to ginning by being subjected to the action of a beater 1, Fig. 1, rotating in a drum or casing 6 which is rotated oppositely to the beater. The cotton bolls are fed axially through the casing 6 from the inlet 9 by the inclined beater-blades 5, unripened or undeveloped bolls being projected through the bars 13 of the casing 6 while well-developed bolls drop through bars 11 into a hopper 14 and conduit 15, Fig. 2, where the cotton is loosened by beaters 19a .. 19d, sand, leaves, &c., being expelled through the grating 21. The beater 1 is keyed to the shaft 2, the end members 7, 8 of the casing 6 being loose thereon. The drum 6 for the length of the bars 13 is enclosed by an undercasing 17. The beater 1 is driven through pulleys 23, 24 from the main shaft 22 and the casing 6 therefrom through the pulleys 25 .. 28. The beaters 19a .. 19d are also driven therefrom.
Patent GB-448659-A (GB)
Title: A process for the production of halogenated alcohols and halogenated ethers
IPC: C07C43/12
Filed: 1935-06-22
Abstract: Halogenated alcohols and ethers are produced by reacting an unsaturated halogen-hydrocarbon containing an olefinic linkage and at least four carbon atoms with a strong mineral oxyacid (other than hypohalogen acids) such as sulphuric, phosphoric, nitric, perchloric, and benzenesulphonic acid, and then reacting the product preferably without isolating the ester, with water or an organic hydroxy compound such as saturated or unsaturated alcohols, glycols, polyglycols, glycerol, phenol and cresol.  A large number of unsaturated halides are mentioned as suitable initial materials including normal and iso halogen-olefines and halogen-diolefines and 1-phenyl 1-chlorphenyl ethylene.  When a polybasic acid is employed, the ester first formed may contain one or more halogen-alkyl radicles.  When an excess of the unsaturated halogen hydrocarbon is used, the excess may be converted into an isomer.  In examples: (1) isocrotyl chloride is reacted with 90 per cent sulphuric acid in the cold and the reaction mixture is poured on ice, the chlor alcohol (CH3)2C(OH).CH2Cl being distilled off as an azeotropic mixture with water and the distillate stratified; some of the excess isocrotyl chloride was isomerized into isobutenyl chloride; (2) isobutenyl chloride is reacted with 80 per cent sulphuric acid in the cold and the reaction mixture is poured into ice-water, a -isobutylene chlorhydrin being obtained; (3) dichlor-di-isobutenyl, CHCl = C(CH3).CH2.CH2.C(CH3)=CHCl, is reacted wit 80 per cent sulphuric acid in the cold, the reaction mixture is poured into ice-water, and the di-isobutenyl - dichlorhydrin extracted with ether; (4) 1-phenyl-1-bromphenyl ethylene is reacted with 77 per cent sulphuric acid, the 1-phenyl-1-bromphenyl ethanol = 1 being extracted with ether.  The products may be used as solvents for solvent and extraction processes, as for the refining of mineral and vegetable oils.  The Specification as open to inspection under Sect. 91 states that the intermediate esters may be isolated and stabilized by suitable stabilizing agents.  This subject-matter does not appear in the Specification as accepted.
Patent GB-222959-A (GB)
Title: Improvements in and relating to combined washing-machines and wash-boilers
IPC: D06F11/00
Filed: 1923-07-11
Abstract: 222,959. Allin, J. M. July 11, 1923. Washing-machines with rotary stirrers.- Comprises an internally corrugated cylinder 1, a water chamber 2 of reduced diameter and adapted to be lowered into a pot-hole in a kitchen range, water circulation passages 3 being arranged between the cylinder and water chamber, a four-vaned rotary stirrer 6, and a perforated sheet 13 supporting the clothes to be washed.