baber/WOPTO huggingface dataset:
Patent GB-1026079-A (GB)
Title: Improvements in or relating to four-way rotary valves
IPC: F15B9/14
Filed: 1963-08-01
Abstract: 1,026,079. Fluid pressure servomotor systems. FUJITSU Ltd. Aug. 1,1963 [Aug. 1,1962], No. 30617/63. Heading G3P. A servomotor system has a control valve comprising a housing 26, having connections to a fluid pressure supply, exhaust and the supply and exhaust ports of a motor 29. A valve seating 25 is rotatable by the motor 29 and has at least one rotary valve member 24 arranged eccentrically with respect to the sleeve. The valve member is rotated by an electric motor 27 through gears 22, 23 to cause rotation of the motor 29 which rotates the sleeve to provide a feedback, the sleeve causing rotation of the valve member 24 relative to the sleeve through the gearing 23, 22. The specification also describes a known system in which the valve member and sleeve are coaxial.
Patent GB-644927-A (GB)
Title: Improvements in or relating to methods and apparatus for finishing flush-riveted plate work, more particularly for aircraft
Inventor: PARKER FREDERICK HERBERT
IPC: B21J15/50
Filed: 1947-11-18
Abstract: 644,927. Portable turning apparatus. BRISTOL AEROPLANE CO., Ltd. Nov. 18, 1947, No. 30624. [Class 83 (iii)] A jig for an end-cutting tool for removing the projecting heads of rivets or similar fastenings comprises a guide bush 13 having a locating hole 15 adapted to receive the end-cutting tool and the head of the rivet and having a resilient pad 12 which is pressed against the surface from which the rivet projects by the cutting pressure on the tool. The end-cutting tool 6 is fitted to a drill 5 comprising a casing 22 and a flange 23 to which is screwed an outer sleeve 24 and within which an inner sleeve 11 slides against the action of a spring 26. An end cap 9 is adjustable on the sleeve 11 and has a step 10 which is a predetermined distance from the end of the tool 6; the cap may be adjustable on the sleeve or may have a lock-nut constituting the step 10. The metal bush 13 of the jig has a stepped hole 15 and a rubber pad 12 with a roughened lower surface is bonded to it, the lower face of the bush being slightly set back from the lower surface of the pad. In use, the jig is placed over the head of a rivet 20 and the cap 9 on the drill is engaged in the hole 15, the end of the tool just entering the smaller part of the hole 15. Axial pressure on the drill then causes the inner sleeve to retract, allowing the tool to advance until lock-nuts 25 contact the outer sleeve 24, at which time the rivet head has been cut down flush with the plate surface. The spring is compressed during the cutting operation and holds the jig against the plate surface.
Patent GB-1177517-A (GB)
Title: Method of Securing a Connecting Wire to a Microcircuit.
IPC: H01R12/57
Filed: 1967-07-04
Abstract: 1,177,517. Welding by pressure; soldering. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 July, 1967 [7 July, 1966], No. 30680/67. Heading B3R. [Also in Division H2] In securing a connecting wire 13 to a microcircuit comprising an insulating plate 10 having parallel conductive strips 11 secured thereto, solder is applied to each strip, a clamp having a first limb 12c, a second limb 12a connected to a metal sheet 14 by narrow webs and a connecting bridge portion 12b is fitted on to the plate 10 so that the limb 12a engages a strip 11, a first split electrode 34 is applied to a connecting wire to hold the wire against the bridge 12b, and a second electrode 35 is applied to the sheet 14, or to another connecting wire held against another clamp, a first current pulse of short duration is supplied to the electrodes to resistance weld the wire to the bridge, a second current pulse of longer duration and lower amplitude is supplied to the electrodes to melt the solder and solder the clamp to the strip and a third current pulse of short duration is supplied to melt the narrow webs. A number of clamps are formed by punching tongues from a sheet 14, forming slits where the tongues are joined to the sheet to form webs and bending the tongues into U-shape. The whole assembly of clamps is fitted the plate 10 after the strips 11 are coated with tin-lead solder and flux and the plate is fixed in a two part ceramic block 30, 31 beneath electrodes 34, 35. The part 30 has a cavity 33 in which diodes or transistors forming parts of the microcircuit can be accommodated. After the cycle of operation the electrodes are removed, the required length of wire 13 is cut off by a pair of blades and the ceramic block is moved to bring another clamp under the electrodes. Two electrodes 34 may be used alone or a plurality of electrodes with a return electrode 35. There may be as many electrodes 34 as clamps and current may be applied to them as simultaneously or in succession.
Patent GB-292016-A (GB)
Title: Cylindrical marine boiler with superheater
IPC: F22G7/14
Filed: 1927-11-15
Abstract: 292,016. Superheater Co., Ltd., (Schmidt- 'sche Heissdampf Ges.). Nov. 15, 1927. Sinuous-tube superheaters; dampers for controlling superheaters.-In a cylindrical marine boiler having one or more return flue tubes d, Figs. 1 and 4, leading into a front smokebox f, and smoke-tubes b connecting the smoke box to the chimney c, superheating tubes g, g<1> are arranged in the return flue tubes and in the smokebox. The steam passes first through the superheater g<1> in the smokebox and then through the superheater g in the return tubes. The passage of the gases through the supperheater g<1> is controlled by dampers h. The legs of the superheater g<1> connected to the outlet header g<3> are placed against the back wall of the smokebox and the distance of the wall from the boiler tubeplate may be adjusted by insertion pieces in the side walls of the smokebox.
Patent GB-852683-A (GB)
Title: 6-methyl steroid compounds and process for the preparation thereof
Inventor: PETROW VLADIMIR
IPC: C07J75/00
Filed: 1957-10-02
Abstract: The invention comprises (1) steroids of the general formula: <FORM:0852683/IV(b)/1> (wherein R is hydrogen or an acyl group of at most 10 carbon atoms) ; (2) 3b :17a -dihydroxy-6-methyl-pregn-5-en-20-one and the 17-acetyl, 17-propionyl, 17-hexanoyl, 17-decanoyl, 3-acetyl and 3:17-diacetyl derivatives thereof; and (3) a process for the preparation of steroids of the above general formula by oxidising 3b -hydroxy-or a 3b -acyloxy-6-methyl-pregna-5:16-dien-20-one to the 16a :17a -epoxide, acylating this if desired and then treating it with a hydrogen halide to give the 16b -halogeno-17a -hydroxyderivative and reductively dehalogenating this to give 3b :17a -dihydroxy- or a 3b -acyloxy-17a -hydroxy-6-methyl-pregn-5-en-20-one, acylating this to give a 3b -acyloxy-17a -acyloxy-6-methylpregn-5-en-20-one, preferentially hydrolysing this at the 3-position and oxidising the 3-ol to give a 17a -acyloxy-6a -methyl-pregn-4-ene-3:20-dione which may subsequently be saponified to the 17a -ol.  The first oxidation (during which partial or complete saponification of the 3b -acyloxy group may occur) may be effected with hydrogen peroxide in alkaline alcoholic solution, the epoxide so formed treated with hydrogen halide in a solvent at 25 DEG C. or below, the dehalogenation effected with Raney nickel in ethanol at room temperature, the acylation of the 17a -hydroxyl group performed by treatment with an acid anhydride and toluene p-sulphonic acid catalyst, the preferential hydrolysis carried out with hot ethanolic or methanolic hydrochloric acid, the second oxidation effected by the Oppenauer method and the final saponification brought about with alcoholic alkali.  Examples are given. Specifications 851,742 and 852,684 are referred to.
Patent GB-673381-A (GB)
Title: Improvements in or relating to vehicle brakes
Inventor: PRATT JAMES HENRY
IPC: F16D51/30
Filed: 1949-12-01
Abstract: 673,381. Internal expanding brakes. GIRLING, Ltd. Nov. 23, 1950 [Dec. 1, 1949], No. 30927/49. Class 103 (i). A brake having two opposed arcuate shoes mounted within a rotatable drum has means provided between the shoes at each end for separating them to apply the brake and for taking the torque on the shoes, and the shoe separating and the torque taking means, which may be combined, are so arranged that in the off position of the brake both shoes lightly contact the drum and act as trailing shoes and when the brake is applied both shoes act as leading shoes. Fig. 1 shows one embodiment of the invention with the brake in the off position. Pressure liquid is supplied via pipes 19, 20 to cylinders 12, 13. In the off position a slight residual pressure is maintained in the system and this pressure tends to move pistons 14, 15 at each end of the cylinders, outwardly. Springs 21 anchored to the back-plate at one end and to the shoes 10, 11 at the other maintain the pistons 14, 15 in cylinders 12, 13 respectively with their enlarged heads 16 abutting the cylinder ends. The pistons 15, 14, however, in cylinders 12, 13, respectively, are free to apply the adjacent shoe ends lightly to the drum (not shown). Both shoes then act as trailing shoes, the frictional torque being a minimum and there being no danger of the shoes being picked up by the drum. When the brakes are applied the pistons 15, 14 recede into cylinders 12, 13, respectively, until their heads 16 abut the cylinder whereupon they act as abutments and the shoes act as leading shoes. A connection 17 between the ends of each cylinder includes a restriction 18 which ensures that violent contact between the piston heads 16 and the cylinder ends, and the consequent noise, is avoided. In a further embodiment (Fig. 3, not shown) a spring is inserted behind each piston, no residual liquid pressure being required in the system when the brakes are off. A still further embodiment, Fig. 4 (not shown), has a single cylinder in place of each doubleended cylinder and has a piston at each end. Noise is avoided in that construction by placing a fibre washer beneath the piston head which acts as an abutment in the on position. Specification 519,787 is referred to.
Patent GB-651116-A (GB)
Title: Improvements in and relating to apparatus for machining contour or like curved surfaces
IPC: B23Q35/08
Filed: 1948-11-29
Abstract: 651,116. Copying lathes. BAKER, S. E. Nov. 29, 1948, No. 30931. [Class 83 (iii)] A copying machine-tool, such as a lathe, has a tool 3 movable in two directions at an angle to each other, the feed in one direction being effected by a shaft 6 driven through a differential 10 and the feed in the other direction effected by a separate motor which is controlled by a tracer 19b moving over a templet 20 and is also connected to the sun wheel 9 of the differential so as to rotate it and reduce the feed in the first direction when the tool is being fed in the second direction. The tool 3 is mounted on a slide 2 vertically movable by a feed screw 5 on a carriage 1 which is horizontally movable by a feed screw 11. The tracer 19b, Fig. 4, is mounted on the slide 2 to contact the templet 20 and comprises a pair of spring blades 19, 18a having contacts which are normally closed to complete the circuit of a motor 13 geared to the horizontal feed screw 11. Through irreversible worm gearing, the motor 13 is also connected to the sun wheel 9 of the differential. When the lathe is first started, the work 21, such as a railway wheel tyre, is rotated and, through a shaft 8, the differential and the screw 5, the tool is fed vertically downwards. The motor 13 is then switched on to drive the horizontal feed screw 11 and the sun wheel until, when the motor reaches maximum speed, the feed is entirely horizontal. When the tracer engages the templet, its contacts are forced apart and the motor circuit is opened so that the feed again becomes vertical until the tracer ceases to engage the pattern. In a modified drive shown in Fig. 2, the horizontal feed screw 11 and a shaft 22 driving the vertical feed screw 5 each have a pair of worm wheels of different diameter. The drive from the motor 13 is connected to the sun wheel 9 and the worm wheel 33 on the shaft 11 by a shaft 36 carrying worms 38 and 35 and the differential pinion 27 is connected to the worm wheel 23 on the shaft 22 by a shaft 26. If it is desired to machine the upper horizontal face of the railway wheel, the shafts 26 and 36 are swivelled to mesh the worm 25 with the wheel 34 and the worm 35 with the wheel 24 and the tracer is adjusted to engage the top of the templet.
Patent GB-858550-A (GB)
Title: Centrifugal pumps
IPC: F04D29/62
Filed: 1957-10-04
Abstract: 858,550. Lubricating bearings. SULZER FRERES S.A. Oct. 4, 1957 [Oct. 22, 1956], No. 31198/57. Classes 12 (1) and 12 (3). [Also in Group XXVI] In a centrifugal pump having a mounting for the rotor shaft at the side of the rotor remote from the pump drive, the mounting forms a unit removable as a whole from the pump casing and comprises a bearing housing which is detachably secured to the pump casing and carries the stationary parts of separate journal and thrust bearings and encloses the rotatable parts of the bearings, the rotatable parts being removable together with the housing. A sleeve 2 mounted on the end of a centrifugal pump shaft 1 remote from the drive co-operates with a stationary flanged bush 11 to form a journal bearing and carries a disc 3 which co-operates with a stationary rubbing-ring 7 to form a thrustbearing. Lubricant is raised from a collecting chamber 14 to an upper distributing chamber 15 by means of a scoop-ring 3a carried by the disc 3, and flows through a passage 16 to the bearings. Disc 3 is retained against a shoulder on the sleeve 2 by a ring nut 4, and the sleeve 2 is retained on the shaft 1 by a nut 5. A detachable cover 19 gives access to the nut 5. After removal of nut 5 and bolts 21, the entire bearing and lubrication assembly, including the sleeve 4, can be detached as a unit in its housing 10. If necessary, screws 24 can be used to ease the housing 10 away from the pump casing. The entire unit can then be replaced by a new one. The lubricant can be cooled by a cooling medium circulated through a pipe coil situated in one or both of the chambers 14, 15. The scoop ring 3a may be omitted, lubricant then being introduced under pressure into chamber 15 and withdrawn from chamber 14. Inlet and outlet pipes for coolant or lubricant must be detached before removal of the unit.
Patent GB-202563-A (GB)
Title: Improved manufacture of impregnated leather, paste-board or the like
IPC: C14C9/00
Filed: 1922-11-16
Abstract: 202,563. G÷ransson, O. G. Nov. 16, 1922. Coating-compositions applied melted.-In a process for impregnating leather, paste-board, and the like with impregnating agents containing 6-22 per cent of indiarubber dissolved in resins, waxes, oils, or fat substances, the impregnating agent (about 70 parts) is mixed with a liquid or a mixture of liquids (about 30 parts) having a boiling point lower than 100‹ C. to yield a product having a melting point of 30-40‹ C. The leather or the like is treated at a temperature not exceeding 80‹ C. and the low-boiling liquid finally removed by heating at about 70‹ C. Preferably, a mixture in equal parts of benzine and trichlorethylene is added to the impregnating agent. The removal of the low-boiling liquid may take place in the same vessel as is used for the impregnation. Caoutchouc or substitutes for caoutchouc such as factice or oxidized oils or mixtures of these may replace indiarubber. Suitable proportions of resins, waxes, &c. are indicated.
Patent GB-1590141-A (GB)
Title: Container racks and containers for vehicles
IPC: B62J11/00
Filed: 1977-07-26
Abstract: The side wall (3) of the item of luggage, for example a case, has a projecting part (10). Said part (10) forms together with the side wall (3) a groove (9) which is received in the lower part of a triangular frame (6) of the luggage carrier. The projecting part (10) has a plate (11) with an opening (28), engaging in which, in order to bring the frame (6) into a locking position with the item of luggage, is a pin (15) of a catch (14) fastened to the frame (6). Said construction permits a considerably more secure fastening of the items of luggage to the luggage carrier. <IMAGE>
Patent GB-1193482-A (GB)
Title: Improvements in or relating to Coupling Devices
Inventor: PAULSEN JEAN FELIX
IPC: F16D3/68
Filed: 1967-07-07
Abstract: 1,193,482. Universal joints. LUXEMBOURGEOISE DE BREVETS & DE PARTICIPATIONS. 7 July, 1967 [8 July, 1966; 11 Jan., 1967], No. 31380/67. Heading F2U. A resilient coupling for pumps, fans, compressors, lines of shafts &c. comprises an intermediate cross the four arms 10 of which are connected via prestressed rubber or other elastomer pads 11 to plates 6, 7 fixed to respective shaft ends. The coupling may be of a form acting like an Oldham coupling (as shown and in Figs. 2-8, not shown) or as a double joint (Figs. 9-12, not shown). As shown, the cross has two opposite arms 10 co-operating via respective pairs of pads 11 with abutments 13 of the plate 6 and the other two opposite arms 10 co-operating via respective pairs of pads 11 with abutments 13 of the plate 7. The arms 10 preferably have increasing cross-section towards the cross hub 9. The plates 6, 7 have shaft receiving hubs 3, 4. Each pad 11 is adhered on the one hand to an arm 10, directly or through a plate fixed to the arm, and on the other hand to a rigid plate 12 which is arranged to co-operate with a corresponding abutment 13 and may have out-turned positioning edges 21. In assembly, the pads 11 are compressed, as by tongs, for introduction between the abutments 13, thereby providing pad pre-compression. In Fig. 2 (not shown), the abutments 13 are independently bolted to the plates 6, 7 and the pad positioning means comprises corresponding crossed projections (130) and grooves (130a) respectively of the plates 12 and the abutments 13. In Fig. 3 (not shown), abutments 13 are formed by branches of U- shaped members (140) bolted to the plates 6, 7, these branches and branches of U-shaped plates 12 diverging towards the coupling axis so that by radial assembly a pre-stressing (in compression and shear) of the pads is effected. In Fig. 4 (not shown) the arrangement is similar to that of Fig. 3 (not shown) except that the abutments are independent and the plates 12 have curved edges (150) bearing on the radially inward ends of the abutments 13. In Fig. 5 (not shown), wherein pairs of abutments are bolted to the plates 6, 7, the spacing between the abutments of each pair is such as to effect pad prestressing. In Figs. 6-8 (not shown), the plates 6, 7, cross and pads are pre-assembled as a unit, the plates 6, 7 being flat-faced for bolting to flat-faced discs (1), (2) keyed on shafts (A), (B). The abutments 13 diverge for the abovementioned pre-stressing of the pads. The pads are kept in position by arcuate strips (14) linking pairs of the plates 12 co-operating with notches (15) on the inner peripheries of the plates 6, 7, the latter being moulded and/or machined. The Figs. 9-12 (not shown) embodiment comprises a unit pre-assembled in the manner of Figs. 6-8 (not shown), but the opposite axial ends of each of all four arms are respectively connected by pad pairs to the plates 6, 7. The abutments are parallel, pad precompression being effected before assembly.
Patent GB-1009485-A (GB)
Title: Improvements in or relating to the preparation of esters
IPC: C07C69/76
Filed: 1964-08-04
Abstract: Aryl esters of di- or poly-carboxylic acids are prepared by a process in which (1) an alkyl ester of the acid is reacted with at least an equivalent amount of a monohydric phenol in the presence of a transesterification catalyst at a temperature above 160 DEG  C. until at least about 50% of the alkyl groups have been liberated from the ester, whereafter (2) an aliphatic acid anhydride in an amount at least equivalent to the remaining alkyl groups in the ester is added to the reaction mixture.  The treatment of esters of carbocyclic acids having carboxylic groups in adjacent nuclear positions is excluded. Specified transesterification catalysts are polyphosphoric acids, alkali-metal hydrogen phosphates, toluenesulphonic acids, alkali or alkaline-earth metal hydroxides, tertiary amines, compounds of antimony or tin, titanic acid esters, and metallic magnesium or aluminium. In a typical example, dimethyl terephthalate and phenol are heated to 230-250 DEG  C. in the presence of magnesium, tin stearate and butyl titanate and later acetic anhydride and additional phenol are added; diphenyl terephthalate is obtained.  Other examples describe the preparation of diphenyl isophthalate, di-m-cresyl monochloroterephthalate and diphenyl 5-nitroisophthalate. Other acids from which aryl esters may be prepared by the method described are oxalic acid, succinic acid, sebacic acid, hexahydrophthalic acid, dichloroterephthalic acid, diphenyldicarboxylic acids, diphenylmethanedicarboxylic acids, benzophenonedicarboxylic acids, trimesic acid and naphthalenedicarboxylic acids.  Other phenols which may be used are the cresols and xylenols, butyl phenols, octyl phenols, benzyl phenols and b -naphthol.  Specification 1,009,484 is referred to.
Patent GB-267231-A (GB)
Title: Improvements in or relating to the feeding of cigarettes
IPC: B65B19/10
Filed: 1925-12-14
Abstract: 267,231. Molins, W. E. Dec. 14, 1925. Packeting cigarettes and like articles.-Relates to apparatus, for feeding cigarettes and like articles, and of the type in which the cigarettes are fed between fixed vertically disposed vanes adapted to arrange them in superimposed rows. According to the invention, the mouth of the channel between each pair of vanes is inclined to the subsequent vertical channel separating the vanes so that the longest axes of oval cigarettes are disposed in parallelism. As shown, cigarettes of oval cross-section rest on the vibrating base plate 1 of a hopper and pass beneath oscillating baffle plates 3 between vanes 2. Knurled or fluted rollers 4, such as are described in Specification 263,521, extend along the upper edge of each vane, and are rotated by gearing 5 - - 7 to prevent jamming. The upper portion of each vane is inclined so that the cigarettes takes up positions between the vanes with the longer cross-sectional axes parallel. Strips 8 are secured on each side of the vanes, the thickness being equal to the diameter of the rollers 4. The upper portion of the strips are recessed at 13 so that the trailing end of the longer axis of the cigarette falls into the recess and is correctly positioned. The upper ends of the strips coincide with reduced portions 9, 10 of the rollers 4, and, when cork-tipped cigarettes are to be fed, an extended reduced portion of the roller permits the cork to pass without contact. The Provisional Specification refers to Specifications 216,326 and 238,355.
Patent GB-211557-A (GB)
Title: Improvements in apparatus for breaking up bar or block chocolate and the like
IPC: B02C1/12
Filed: 1922-11-18
Abstract: 211,557. Hobson, A. H., and Mitchell, R. S. Nov. 18, 1922. Sugar cutters.-Block chocolate is cut or broken by a number of blades or spikes 13 fixed to a plate 12 bolted to a second plate 15 sliding on guides 16 and operated by a lever 8 and link 10. Pieces of chocolate adhering to the blades &c. 13 are removed by a perforated plate 19. The spikes may be chiselended and arranged in three rows, the spikes in the middle row being longer than the others, as shown in Fig. 2. The chocolate is contained in a box 20 provided with partitions 23 sliding in slots in the ends of the box and pressed inwards by blade springs 21. In a modification the springs and partitions are made in one piece.