baber/WOPTO huggingface dataset:
Patent GB-1192389-A (GB)
Title: Electroplating Method and Apparatus
IPC: C25D5/02
Filed: 1967-06-20
Abstract: 1,192,389. Electro-plating apparatus. PHOTOCIRCUITS CORP. June 20, 1967 [June 21, 1966], No.28316/67. Heading C7B. Electro-plating apparatus which is slidable over a surface to be plated comprises cathodes 3a, Fig. 1, spring-loaded at 3c into contact with the surface, an anode 4 and a channel 8 through which electrolyte is supplied to the surface. By this means segments 10, 10a of a workpiece 9, e.g. a printed circuit can be plated. Each cathode comprises a linear array of tubes 3a, each tube having individually insulated work-contacting conducting bristles 3b. The tubes 3a are insulated by sleeves 3e which also serve to confine the electrolyte. The apparatus is slidably supported over the work surface by guide rods or tracks 13. Fig. 2 (not shown) illustrates in more detail a similar apparatus wherein an anode (39) is of lead construction and cathodes are metal tubes having at their lower ends copper bristles which are covered with insulation except at their work contacting ends. Electrical connections to the electrodes are illustrated. Fig. 3 shows apparatus comprising a pair of stainless steel anodes 66, covered by an insulated layer 67, and an array of metallic tube cathodes 76a having work-contacting means 76b at their ends. Electrolyte is supplied at at 65. An auxiliary or substitute anode may be located in recess 61.
Patent GB-616677-A (GB)
Title: Improvements in or connected with potato lifting machines
IPC: A01D17/10
Filed: 1946-09-23
Abstract: 616,677. Potato harvesters. AVELING-BARFORD, Ltd., LEVERETT, E. G., and KNOTT, L. Sept. 23, 1946. No. 28364. [Class 6 (iii)] In a potato harvester embodying a flanged conveyer trough consisting of a moving conveyer h of spaced bars and side vertical flanges, positively oscillatory or reciprocating members b are provided forward of and in substantial alignment with the leading edges of the side flanges r, and they are connected to reciprocating mechanism and have cutting edges. The members b are reciprocated by a crank c, rods d, rocking levers e, and links f ; both links and. rods can be adjusted with respect to the levers. In operation, the crops and earth are lifted by a blade g, the haulms are severed by the edges of the members b, the mass agitated by said members and ultimately passed onto the sifting conveyer h to a delivery shoot or other receptacle. According to the Provisional Specification the members b may also be formed as horizontally moving slides.
Patent GB-1173606-A (GB)
Title: Charge Diffusion Systems.
IPC: H01J45/00
Filed: 1966-11-03
Abstract: 1,173,606. Utilizing energy of radiators. GOURDINE SYSTEMS Inc. 3 Nov., 1966 [8 Nov., 1965], No. 28381/69. Divided out of 1,173,605. Heading G6P. [Also in Division H1] A plasma formed by thermal ionization of a static medium is used to produce an electric current through a load 59 by producing an asymmetry in the space-charge sheaths surrounding the two electrodes 52, 56 immersed in it; the asymmetry is produced by arranging the electrodes so that they have mutually orthogonal surfaces, e.g. cylinder 52 and endplates 56, and subjecting the medium to a magnetic field in a direction such as to inhibit the diffusion of charge carriers in a direction normal to only one of them, i.e. 52. It is shown that the difference between the random electron current density parallel and perpendicular to the magnetic field causes a difference in the depths of the sheaths at the respective electrodes and causes a net current to flow. The whole device is isothermal, the filling being, e.g. caesium, and the the temperature range 800-1300‹ C. Contact ionization need not be present and the thermionic emission of the electrodes plays no part in the mechanism. The envelope 50 is of refractory material such as boron nitride, beryllia or alumina, and the electrodes are screwed into the ends as shown. The source of heat may be external, e.g. rocket or turbo-jet exhaust, or solar rays introduced through a lens aperture in the envelope; or internal, e.g. radio-active PO<SP>210</SP>. The magnet 62 may be superconductive or permanent. A number of cells may be connected in parallel by forming a number of bores in a slab and closing the ends by insulated sheets, Fig. 3 (not shown). Semi-conductor devices.-It is stated that the plasma may be replaced by an n-type semiconductor such as germanium, the mechanism remaining the same. The working temperature in this case may be 600‹ C.
Patent GB-935446-A (GB)
Title: Clothes washer machine
IPC: D06F13/04
Filed: 1962-07-24
Abstract: 935,446. Washing-machines. GENERAL MOTORS CORPORATION. July 24, 1962 [July 31, 1961], No. 28396/62. Addition to 898,296 Class 138 (2). [Also in Groups XXIV and XXXIV] A clothes washing machine has an agitator and rotatable tub alternatively drivable through agitator and spin drums 86, 140 driven by one or two motor-driven friction rollers, with different speed ratios in the case of two rollers, the agitator drum 86 supporting at an angle an arm 97 which is connected to the agitator through a spherical bearing 102 and a flexible connection 120. The flexible connection 120 consists of rubber bonded to each of two plates, one fixed to a shaft 62 and the other to the spherical bearing 102. The agitator is fixed on the shaft 62 and is reciprocated as the agitate drum 86 rotates. The rotatable tub is driven through a tubular shaft 64 screwed at its lower end into the spin drum 140. An octagonal well 160 in the upper end of the spin drum 140 contains an octagonal brake pad 162 supported on a spring washer 163. A spiral spring 170 with one end connected to the shaft 64 and the other to the spin drum 140 tends, when wound up, to screw the spin drum 140 up the shaft 64 to bring the brake pad 162 into effective contact with a stationary brake plate 180. When the spin drum 140 is driven from the motor, it screws itself down the shaft 64, until it contacts a stop 152, thus winding up the spring 170 and leaving the brake 162, 180 only lightly engaged. When motor drive is stopped, inertia and the spring 170 screw the drum 140 up the shaft 64 to apply the brake 162, 180. Specification 935,447 also is referred to.
Patent GB-480517-A (GB)
Title: Improvements in or relating to hook adapters for bolts, set-screws, or screw-threaded rods
IPC: F16B37/00
Filed: 1937-10-19
Abstract: 480,517. Nuts &c. for bolts &c. LINDSAY, Ltd., H., and LINDSAY, H. Oct. 19, 1937, No. 28415. [Class 89 (i)] A nut or threaded collar 4 for a bolt or the like 3 is formed with a laterally projecting abutment or hook portion 4x for clamping engagement with the flange 1 of a girder or the like, and with one or more auxiliary abutments 4z for engagement with the edge of the flange 1 to prevent the nut or collar 4 from turning with the bolt or the like 3. The nut or collar 4 may also be formed with one or more bendable supporting spurs 4a to engage the member 2 to which the girder flange or the like is to be clamped, and the lower surface of the abutment 4x may be ridged or serrated transversely as at 4y to increase its grip on the flange.
Patent GB-1148898-A (GB)
Title: Improvements in or relating to b-homo-steroids
IPC: C07J63/00
Filed: 1966-06-24
Abstract: 1,148,898. B-homo-steroids. SYNTEX CORP. 24 June, 1966 [19 July, 1965], No. 28433/66. Heading C2C. Novel B-homo-steroids of the formula (wherein R is H, OH or Oacyl; T is H, α-OH, α-Oacyl, or α- or #-CH 3 ; or R and T together are α,α-methylenedioxy which may be substituted by a C 1-6  alkyl group alone or together with a C 1-6  alkyl group or an aryl, alkaryl or aralkyl group of up to 8 carbon atoms; and there is a #<SP>4</SP> or #<SP>5(10)</SP> double bond) are prepared by the processes wherein R<SP>3</SP> is acyl.
Patent GB-691401-A (GB)
Title: Improvements relating to the manufacture of bread
IPC: A21D2/16
Filed: 1950-11-21
Abstract: For increasing the softness and volume of bread and for improving its texture, there is incorporated in the dough mix from which the bread is baked 0.02-0.40 per cent, based on the weight of the flour, of G.M.S., or 0.10-0.50 per cent of a triglyceride fat and 0.02-0.20 per cent, based on the weight of the flour, of G.M.S.  G.M.S. is a solid product obtained by the reaction of glycerol with predominantly saturated fatty acid or fat of chain length 16 carbon atoms or more to the molecule, as in stearic or palmitic acid, which product may contain some alkali soap from neutralizing unreacted fatty acid at the end of the reaction, and may contain up to 100 per cent monoglycerides, but usually contains 15-50 per cent monoglycerides, 75-45 per cent diglycerides and up to 10 per cent triglycerides. Specification 517,319 is referred to.
Patent GB-1490061-A (GB)
Title: Scarves
IPC: A41D23/00
Filed: 1974-10-11
Abstract: 1490061 Scarves MERCHANT INVENTORS INTERNATIONAL Ltd 11 Oct 1974 28574/77 Divided out of 1489740 Addition to 1489740 Heading A3V The scarf of application Parent Specification carries readable matter and is modified in that the pockets are replaced by loops which open at both longitudinal edges of the scarf.
Patent GB-519756-A (GB)
Title: Electrical make and break switches with sparking preventing arrangements
IPC: H01H50/68
Filed: 1938-10-01
Abstract: 519,756. Electromagnetic interrupters. DIXON, J. B. Oct. 1, 1938, No.'28598 [Class 38 (v)] The operating-coil of an interrupter is shunted through a "sparkabsorbing" circuit which is established as long as the main contacts are opened and interrupted when they are closed. The diaphragm A of a pump for supplying fuel to the carburettor of an internal - combustion engine, is adapted to be raised, against the action of spring A<4>, by the armature A<1> of a solenoid coil A<3>. The upper end of A' is threaded in a block B pinned to an arm B' which is pivoted at B<2>. An arm C. also pivoted at B<2>, is connected to B' by a spring D the ends of which engage over pins D<2>, D<3> on the two-arms. The spring D functions as a dead-centre toggle spring, so that when B' is raised by the armature A<1> the spring snaps C downwards, and when B' is lowered again, the spring snaps C upwards. Arm C carries a contact C<2> on which bears a contact E on a leaf-spring E' which also carries a contact F<2> adapted, in the lowered position of C, to engage a contact F<1>, the arrangement being such that the latter arrests the movement of spring E' and ensures that F', F<2> engage before C<2>, E separate. The former make a closed circuit for the solenoid coil through resistance F', whereas the latter are in the main solenoid circuit. Instead of a simple resistance, a condenser or a winding of opposite magnetic effect to the main winding may be employed with a resistance.
Patent GB-323058-A (GB)
Title: Manufacture of corrugated tubes
IPC: B21D15/06
Filed: 1928-10-05
Abstract: 323,058. Bromford Tube Co., Ltd., Hackett, W. W., and Reimann, J. J. Oct. 5, 1928. Corrugating.-A plain tube is corrugated by supporting the tube 2 internally on a plain mandrel 3 and externally in zones 6 between the positions of the desired corrugations by split dies 7 accurately spaced as by pivoted spacers 19, and then subjecting the tube to endwise pressure, the external supports moving together as the tube shortens and slides over the mandrel. Each pair of split dies 7 is encircled by a holder in halves 9, Fig. 2, hinged together at 11 about a bush 12 freely engaging a rod 13 and clamped together by a link 15 and eccentric 16, or the split dies may be tapered as at 17, Fig. 4, and clamped together by coned rings 18. The edges of the split dies are recessed at 21 to the shape of the corrugations 23 required. The spacers 19 are pivoted about a rod 20 parallel to rod 13. One end 4 of the tube abuts a ring 5 which may be screwed on the mandrel, whilst the other end enters an abutment member 24 and bears against a shoulder 28 on the press member 25.
Patent GB-1190556-A (GB)
Title: Process for the Production of Metal Strips and Sheets.
IPC: B22F3/18
Filed: 1967-06-21
Abstract: 1,190,556. Moulding metal powder; granulating. INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION Inc. 21 June, 1967 [22 June, 1966], No. 28670/67. Heading B5A. In a method of producing metal strip or sheet consisting of more than 50% by weight of zinc, lead, copper or a mixture thereof, or an alloy thereof containing more than 50% by weight of said metals, granules of such metal having a particle size of at least 200 microns are produced by centrifugal ejection and are then compacted into sheet or strip by rolling. Said granules may be in admixture with other particulate materials. The metal may be melted in a furnace 1 and fed to a rotary perforated basket 3 whereby the droplets thrown therefrom become solidified and pass on a belt 8 through a preheater 7 and fall between rolls 10. The green strip leaving the rolls passes to finishing rolls 11 and a coiling device 12.
Patent GB-376577-A (GB)
Title: Improvements in or relating to valves electrically operated through planet gearing
IPC: F16K31/05
Filed: 1931-10-15
Abstract: 376,577. Motor-actuated valves. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 15, 1931, No. 28700. Convention date, Nov. 20, 1930. [Class 135.] Valves are actuated alternately by a motor driven worm 7 or a hand-driven worm 9 both acting upon members of a common differential gear, excessive resistance to rotation of the valve spindle 10, such as at the ends of its travel, producing axial movement of the worm 9 to break the motor circuit. Planet pinions 1, 2 are secured on a common spindle 5 turning in the motor worm wheel 6 and gear respectively with an annulus 3 on the hand worm wheel 8 and an annulus 4 splined to the valve spindle 10. The worm 9 is secured to a spindle 13 held against axial movement in both directions by a spring 29. A fork 11 engaging the worm carries a cam 12 engaged by rollers 18, 19 on levers 22, 21 actuating switches 26, 25 for breaking the motor circuit. The worm gearing being irreversible, during motor-drive the annulus 3 remains stationary and the spindle 10 is driven slowly in reverse direction, and during hand drive the worm wheel 6 remains stationary and the spindle 10 is drawn forwardly at increased speed. Excessive resistance to either drive moves the worm 9 axially against the spring 29 and breaks the motor circuit.
Patent GB-198287-A (GB)
Title: Method of manufacturing fulminate of mercury
IPC: C01B21/08
Filed: 1922-10-23
Abstract: In a process for the production of mercury fulminate by feeding controlled quantities of alcohol and a nitric acid solution of mercury into a reaction vessel, the residual liquor after the separation of the fulminate consists of glycollic acid with some excess nitric acid.  It is converted into oxalic acid by evaporating to about an eighth of its bulk and cooling, when the oxalic acid crystallizes.
Patent GB-899265-A (GB)
Title: Case shift mechanism for keyboard perforator and counter
IPC: B41B25/00
Filed: 1958-09-09
Abstract: 899,265. Strip perforating machines. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. Sept. 9, 1958 [Dec. 27, 1957], No. 28853/58. Class 100(3) . Keyboards. A case shaft mechanism for a keyboard apparatus controlling a permutation selector mechanism of a perforating mechanism, comprises a shiftable unit 41 which enables keys 23 to operate a different series of permutation bars and which unit is shifted via linkage 81, 79, 63 by a cam element 66, Fig. 3, carrying two pawls 88, 89, these pawls being positioned by case shaft keys 103, 104, so that the cyclic power operation of a vane 62 causes fingers 85 to engage one of the pawls 88, 89 to rock the cam 66 and effect shifting of the unit 41. Upon depression of a case shift key, e.g. 103, a link 112 rocks a bell crank 107 to engage an adjustment stud 111 of a slide 97, which, in moving rightwardly,' moves the pawl 88 below left-hand finger 85 and moves the pawl 89 clear. Cyclic operation of the vane 62, initiated by a clutch control associated with the case shaft key, thereby causes a finger 85 to engage pawl 88 and rock the cam 66 counterclockwise which is held in its new position by indents 77, 78 and spring follower rollers 75, 76. The movement of cam 66 gives a longitudinal motion to the link 63 to effect shift of the unit 41: the link 63 contains a resilient connection 83 to protect the mechanism if any mechanical obstruction is present. In a modification (Figs. 5, 6, not shown) the single pawl operating slide 95 is replaced by individual slides. Specification 899,264 is referred to.
Patent GB-648024-A (GB)
Title: Improvements in or relating to rotary liquid meters
IPC: G01F3/06
Filed: 1948-11-08
Abstract: 648,024. Rotary meters. AVERY-HARDOLL, Ltd., and FRASER, J. Nov. 8, 1948, No. 28978. [Class 110(ii)] A liquid meter comprises an eccentric rotor 22 in a casing 10 constructed of concentric arcs 16, 17 and connecting curves 18, 19 which form cam surfaces to guide vanes 24. The vanes are connected in pairs by rods 25 which pass through holes in a shaft 28 and sealing glands 29 comprising a pair of washers 32. 33, a spacing tube 34 and a packing ring 35. Each gland is located in a recess 36 in the bottom of a slot 23 by one end of a clamping member 37 having forked ends which engage the outer washers 32 of the two glands in one slot. The vanes 24 are formed of carbon, on other material, and cemented to thimbles 39 secured on the rods 25 by clamps 40, 41. The rotor is secured to the shaft 28 by a peg 45 giving the rotor axial freedom and allowing it to align itself with the casing. Liquid is supplied through an inlet 20 and discharged by way of an outlet 21, both ports having bars on which the vane tips ride. The weight of a pair of vanes, acting vertically when metering starts, by bearing on the arc 17, aids sealing. Liquid is supplied from an axially-displaced chamber 46 with an inlet 47, the liquid entering the meter through a filter 48. A float 53, when the liquid level falls, closes a valve 49 to prevent the metering of air and at the same time opens a gas release valve 55. The Provisional Specification states that the rods 25 may be hollow.
Patent GB-665582-A (GB)
Title: Improvements relating to the production of precision screws
IPC: B23Q23/00
Filed: 1949-11-12
Abstract: 665,582. Lathes. CRAVEN BROS. (MANCHESTER), Ltd., and OWEN, W. Nov. 1, 1950 [Nov. 12, 1949], No. 29043/49. Class 83 (iii). [Also in Group XIX] A machine for cutting and measuring precision screws comprises a headstock a and a tailstock b, a slide i carrying a clasp nut h engaging a main guide-screw e journalled in the machine-bed, a main-spindle c geared to the screw e, means f, g for ensuring accurate rotation of the spindle, a tool-slide k, and a corrector bar r having a face contour adjustable to correct for inaccuracies in the main guide screw by imparting longitudinal movement to the tool-slide. The slide i carries the toolslide k which is moved against a spring k<SP>1</SP> during cutting by face-cams o, p. The cam p is attached to a lever g carrying a follower which bears against the corrector bar r. The tool is adjusted to-and-from the work by a precision screw n, as also is a feeler y co-operating with dial gauges x. Initially, the contour of the corrector bar is set by checking the accuracy of the guide-screw e by an optical square f and an autocollimator g used in conjunction with a microscope u on the slide k and a line standard on the machine bed. The screw z is then cut, the corrections due to the bar r modifying the movement of the slide k due to the screw e. With the lever q then disengaged from the bar r and the nut h from the screw e, the work is checked by means of the gauges x and the feeler y. If necessary, the bar r is then re-adjusted and a final cut taken.
Patent GB-960003-A (GB)
Title: Process for condensing an aldehyde with a compound containing at least two active hydrogen atoms on the same carbon atom
IPC: C07C47/20
Filed: 1960-08-23
Abstract: An a ,b  unsaturated compound is obtained by condensing an aldehyde with a compound containing at least two active hydrogen atoms on the same carbon atom in the presence of an organic magnesium salt soluble in the reaction mixture. Active hydrogen atoms are defined as hydrogen atoms attached to carbon atoms adjacent to or in conjunction with electron withdrawing groups such as aldehyde, keto, nitro, nitrile, carboxylic acid or carboxylic ester groups. The aldehyde may be aliphatic or aromatic and may contain alkoxy, amino, halogen, nitro or nitrile substituents. The magnesium salt may be derived from an organic, e.g. carboxylic acid, a phenol, a thiophenol or a chelating agent and may be used in proportions of about 0.001 to about 0.05 mole per mole of total reactants. Temperatures of about 50-400 DEG C. are mentioned. In examples, a -isoamyl-b -isohexyl acrolein is obtained from the condensation of isoheptaldehyde (acting as both reactants), a -isohexyl-b -isoheptyl acrolein from isooctaldehyde, a -n-amyl-b -n-hexyl acrolein from n-heptaldehyde, and styryl hexyl ketone by condensing benzaldehyde with 2-octanone.
Patent GB-299802-A (GB)
Title: Improvements in loaded transmission systems for telephony and the like
IPC: H01B11/16
Filed: 1928-10-10
Abstract: 299,802. Standard Telephones & Cables, Ltd., (Assignees of Shaw. T.). Nov. 1, 1927, [Convention (late]. Loading circuits to improve transmission.-In a loaded phantom line, with carrier frequencies in the side circuits and ordinary frequencies in the phantom, if the carrier frequencies do not exceed 13000 cycles it is sufficient to have' twice as many loading points in the side circuits as in the phantom. In such a case each phantom loading unit 4<1> is divided and connected symmetrically with respect to a side-circuit loading unit A, so that the capacities of the side-circuit loading sections A-B and B-C may be equal. This is achieved without the necessity for using different side-circuit loading units at A and B, or using phantom loading units different from what would be employed if the side circuits carried ordinary frequencies.
Patent GB-490182-A (GB)
Title: Improvements in or relating to gun barrels
IPC: F41A21/04
Filed: 1937-10-26
Abstract: 490,182. Ordnance. TRAVERSI, R. A. Oct. 26, 1937, No. 29216. Convention date, Oct. 26, 1936. [Class 92 (ii)] Relates to gun barrels having an inner tube 2 removable when cold and separated from the outer tube 1 by an annular chamber 6 divided by packing rings 7 into sections, each section being connected at 5 to the bore to equalize the internal and external pressure of the gun gases on the tube. According to the invention, the liner is of stepped formation, the packing rings being placed at the shoulders of the steps and segmental distance-pieces 3 being provided between the steps. The passages 5 for the gun gases are arranged at an inclination to the gun's axis. Specification 13552/15, [Class 92 (ii)], is referred to.