baber/WOPTO huggingface dataset:
Patent GB-876569-A (GB)
Title: Improvements in and relating to xerographic plates
IPC: G03G5/082
Filed: 1957-08-20
Abstract: In the manufacture of a xerographic plate comprising a conductive backing member having on at least one surface a photo-conductive insulating coating consisting of a mixture of selenium and arsenic, the proportion of arsenic being between 0.5% and 20%, preferably between 1% and 10% by weight, the mixture may be placed in a film-forming binder and applied in the form of a lacquer, or molten selenium-arsenic may be applied, as by spraying, the backing member being pre-heated, preferably to at least 70 DEG C.  The backing member may be of brass, aluminium, steel, stainless steel, nickel, chromium, zinc, conductive plastic, or conductively coated glass or paper.  If amorphous selenium prepared from selenium oxide reduced in quartz is not used, the selenium is purified before use by distilling out copper, lead, iron and bismuth impurities and then heating to 250 DEG C. and dropping, while molten, into water to form pellets which are subsequently treated with petroleum ether and air-dried.  The pellets may be remelted and cast into sticks or ground or micro-pulverised.  Reference has been directed by the Comptroller to Specification 778,459.ALSO:A process for manufacturing a xerographic plate comprises the step of pre-heating a conductive backing, preferably to at least 70 DEG C., prior to disposing thereon a layer of selenium having high dark resistivity and containing from 0.5% to 20%, preferably between 1% and 10%, by weight of arsenic.  The presence of arsenic is said to increase the spectral range and photographic speed of the plate and to inhibit crystallization of the selenium during regenerative heating.  As described, a brass plate, having been polished, rinsed, and de-greased, is pre-heated to 70 DEG C. in an evacuated bell jar 6 inches above a crucible containing a mixture of selenium and arsenic which is heated to cause it to evaporate on to the plate.  The charge for evaporation is prepared by heating a mixture of selenium and approximately 2% by weight of arsenic for 2 hours in air, and then decanting the undissolved arsenic.  If selenium other than that ammonia reduced in quartz is used, it should be purifised (see Group III) before use. Alternatively, the evaporation of selenium and arsenic may be from separate sources, or molten selenium-arsenic may be applied, as by spraying, to the conductive backing member which may, instead of brass, be made of aluminium, stainless steel, nickel, chromium, zinc, steel, conductive plastic, or conductively coated glass, paper &c., in the form of a flat plate, cylinder, or flexible sheet.  A protective transparent insulating coating, as of vinyl resin, a cellulose ether or ester, a sillicone resin &c., may be provided on the sensitive layer.  Reference has been directed by the Comptroller to Specification 778,459.
Patent GB-485143-A (GB)
Title: Improvements in or relating to alloys for permanent magnets
IPC: C22C9/06
Filed: 1937-09-28
Abstract: An alloy for permanent magnets consists of 1,4-35 per cent of iron, 10-45 per cent of nickel, 16-68,6 per cent of cobalt, and 20-72,6 per cent of copper, the ratio of iron to nickel being always between 1 : 7 and 1 : 0,28.  Up to a total of 1 per cent of other elements such as manganese, silicon, magnesium, p  aluminium, and beryllium may also be present.  The alloy may be heated above 1000 DEG  C., quenched, and tempered at 500-750 DEG  C.
Patent GB-209147-A (GB)
Title: An automatic stopping mechanism for yarn and thread twisting machines
IPC: D01H13/16
Filed: 1922-09-29
Abstract: 209,147. Field, M. F. Sept. 29, 1922. Stop-motions; thread-guides.-The groups of threads 5, 6, Fig. 2, in a creel twister are led from the creel 2 round guide cylinders 25, which are fitted with members 26, 27, Figs. 5 and 6, arranged to provide a longitudinal slot 50. The member 27 is of insulating material and carries a metallic plate 30, while the members 26, 27 are both provided with metallic plates 29, 31 adjacent the slot 50. A detector member 35, formed with a hook 36 at its upper end, is pro. vided for each thread, the threads passing in spaced relation through slots 37, Fig. 3. On breakage of a thread its detector 35 drops, the head 36 makes contact with the strip 30, and bearing against the plate 31 completes the circuit of an indicator 40 and an electrical stop-motion. In a modification, the tube 25, Fig. 7, is provided with a bar 55, and the detectors 60, which slide thereon, are formed with fork arms 61, 62 straddling the threads 5. The bar 55 carries a conducting-bar 66 and the detector 60 drops thereon when a thread breaks, thus completing the electric circuit. Spacing-washers 65 are provided.
Patent GB-389027-A (GB)
Title: Improvements in combination furniture
IPC: A47B83/00
Filed: 1932-09-22
Abstract: 389,027. Combination bookcases and wardrobes. T H 0 M P - S 0 N, L., 1, Seacote, Ventnor, Isle of Wight. Sept. 22, 1932, No. 26308. [Class 52 (i).] An article of furniture comprises in combination a bookcase 1 having doors 3 that open to the front and a wardrobe 4 having doors 5 that open to the side.
Patent GB-364584-A (GB)
Title: Improvements in turning lathes and like machines
IPC: B23B17/00
Filed: 1930-09-03
Abstract: 364,584. Lathes. POTTER, W. W., Pawtucket, Rhode Island, U.S.A. Sept. 3, 1930, No. 26353. Convention date, Oct. 11, 1929. [Class 83 (iii).] In a lathe the work-spindle is carried by antifriction bearings arranged at points along the spindle so that the distance of the workengaging member from the farthest bearing is less than the diameter of said bearing. As applied to a vertical spindle lathe, the headstock centre 13 is mounted in the sleeve of a face-plate 12 which is attached to the spindle 11. The lathe bed 10 carries outer races 14, 18 for ball or roller bearings 16, 21, the inner races 15, 20, being mounted on flanged sleeves 22, 23 on the spindle. A worm 25 drives the spindle 11 through a worm wheel 24 located between the flanges 22, 23 and between the bearings 14, 18. The tailstock centre 44 is mounted in a spindle 30 to which is keyed a disc 39, inner races 33, 36 being secured to the spindle and disc respectively and outer races 32, 35 for the ball or roller bearings 34, 37 being carried by the tailstock 26. The bearings 34, 37 are arranged on a conical surface of substantially the same angle as the centre 44 and said surface may be a continuation of the conical surface of the centre or may lie outside thereof as shown. The disc 39 has a toothed periphery engaging a pinion 39<1> on a shaft 40 driven at 41 from a gear 42 on the headstock spindle 11. The tailstock 26 is slidable as a whole, to position the centre 44, on guide-rods 27 which connect the base 10 to a bracing member 28, adjustment being effected by a screw 29. The work w is driven by a dog 45 on the face-plate 12 and the turning tools 47 are carried by a slide rest 46 slidable on one of the rods 27 and are given the rectangular feed movements shown diagrammatically in Fig. 2. In a modified headstock the outer race 140, Fig. 3, is held in place by a ring 141 provided with a number of layers of cork 48 which rub against the inner race 200. Two rows of balls 210 are located close together axially between the races and a face-plate 120, which carries the centre 130, is secured to the inner race, the latter being toothed at 49 for the drive from a pinion 50. In a further modification which is similar to that shown in Fig. 3, the inner race is stationary and the face-plate is secured to the outer race which carries worm teeth for engagement with a driving worm. In each case the bearings are constructed and assembled so that they have an initial compression.
Patent GB-175325-A (GB)
Title: An improved lifting and dumping or ring discharge grab
IPC: B66C3/06
Filed: 1920-09-14
Abstract: 175,325. Cooper, H. M., and Willmott, H. B. Sept. 14, 1920. Grab-buckets.-In a grab of the type comprising, as shown, a bucket cross-head g and a hook-carrying crosshead k mounted to slide vertically in a guide-frame n, the cress-heads are coupled or uncoupled by a pivoted hook o adapted to turn mouth downwards when free, an eye h on the bucket cross-head being adapted to turn the hook into coupling position. Levers p, q, Fig. 5, retain the hook in coupled position or release, it therefrom, and the opening movement of the bucket jaws d is steadied by screws t, Fig. 8, working in nuts mounted on bars i of the bucket cross-head, the bars being slidable in the frame and capable of being lowered below the frame. The bucket jaws are pivoted on wings of the frame c and are connected to the cross-head g by pivoted links f. As shown in Fig. 5, the lever q pivoted on the lever p permits a shoulder p<3> thereon to remain in engagement with a shoulder o<3> on the hook o while passing upwards through the releasing-ring, but when passing downwards through the ring the lever q is raised and raises the lever p about its pivot p<1>, permitting the hook to turn by gravity into the position shown in broken lines. The lever p may be operated by a vertically guided weight v when the grab is resting on the ground. Hauling on the rope passing round pulleys l, m in the cross-head and frame closes the jaws when in the position, shown in Fig. 1, and the grab is raised. On lowering, the ring operates the levers and the jaws are opened to discharge the grab. The cross-head g carries nuts s, which are either rotatable on the screws t and geared with pinions braked by spring washers, or the nuts are fixed, the screws being then rotatable and braked.
Patent GB-1107204-A (GB)
Title: Tracer control apparatus for copying machine tools
IPC: B23Q35/36
Filed: 1965-06-22
Abstract: 1,107,204. Copy-milling. NASSOVIA WERKZEUGMASCHINENFABRIK G.m.b.H. 22 June, 1965 [24 June, 1964], No. 26367/65. Heading B3K. In a copying machine tool, a tracer 2 is biased by means comprising a rotatable head 6 surrounding a ball 5 rigidly mounted on the tracer, an hydraulic valve 22 being movable by the ball for controlling rotation of the head to change the direction of bias, the head being mounted for adjustment angularly about horizontal (12) and vertical axes passing through the centre of the ball. The tracer actuates means (not shown) for operating a tool and tracer carriage in any two of three co-ordinate directions of movement. The ball 5 engages a recess 16 in a block 6 having a shaft 14 connected to an hydraulic motor 15. The block is carried by a housing 7 supported on pivots 12 in a mounting 8 which is adjustable angularly in a housing 1. A stop 20 is adjustable to vary the control force of a spring 23 and a screw 24 on a lever 18 varies the direction of the control force, the lever carrying a roller 19 engaging the ball. In operation, with the parts set as in the Figure, for making a series of parallel traverses of the work, the motor 15 will be rotated to turn the block 6 by pressure supplied by pumps 30, 31 associated with low and high pressure relief valves 32, 33. If the tracer is moved down on to the pattern by hand the ball 5 will raise the lever 18 to depress the valve 22. Feed then commences along the pattern. When the tracer reaches a depression lowering of the ball 5 allows the spring 23 to raise the valve 22. The motor 15 rotates and the head descends until equilibrium is again reached. Limit switches 36, 37, 38 limit travel of the carriage of the machine in the co-ordinate directions and operate through a switch 39 to reverse the hydraulic connections in valve 34 to the motor 15 and through a time relay (not shown) to rotate the block 6 through 120 degrees in preparation for movement in the return direction. Manual control of the biasing device is provided for by means of handwheel 44. Contour milling is made possible by adjusting the housing 7 with the block 6 through 90 degrees. Adjustment through an angle less than 90 degrees may facilitate the negotiation by the tracer of sharply angular portions of the pattern.
Patent GB-174120-A (GB)
Title: Improvements relating to double-acting internal-combustion engines
IPC: F02B75/00
Filed: 1920-09-15
Abstract: 174,120. Vijgeboom, W., and relies, J. F. Sept. 15, 1920. Two-stroke and four-stroke cycle engines.-In a double-acting engine a piston e, f of two diameters works on a guide c for the piston-rod j. Air passes up through the guide into the interior of the piston, and thence between the trunk d and a sheet-metal outer casing n to a chamber q in the cylinder wall, whence it is directed by a valve r and passages s or t into the cylinder, and finally escapes by the exhaust ports u, v. A twostroke-cycle engine is shown. In a four-strokecycle engine, the air enters the cylinder at the end of the suction stroke.
Patent GB-463263-A (GB)
Title: Improvements in the wet purification of gases, especially coal distillation gases
IPC: C10K1/00
Filed: 1935-09-26
Abstract: 463,263. Gas-purifying materials and processes. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) Sept. 26, 1935, No. 26624. [Class 55 (ii)] In the wet purification of gases, such as coal gas, in which after a preliminary washing stage with an acid thionate or sulphite-bisulphite solution to remove the ammonia and part of the hydrogen sulphide therefrom, the gas is subjected to catalysis with air or treatment with concentrated sulphuric acid whereby the remaining hydrogen sulphide is oxidised to sulphur dioxide which is absorbed in a main washing stage by sulphite liquor which continuously circulates between the latter and the preliminary washing stage, the remaining impurities comprising benzene and similar hydrocarbons are removed in a final purification stage. Whichever method of oxidation is used the gas is first of all preheated, preferably to 380‹ C. before catalysis or 125‹ C. before washing with sulphuric acid. The hydrocarbons may be removed by washing oil or adsorbents such as activated carbon. The acidity of the acid washing liquor used in the main and preliminary washing stages may be increased by the addition of sulphuric, nitric, phosphoric, or boric acids or salts of organic acids. Specification 367,343 is referred to.
Patent GB-482715-A (GB)
Title: Improvements in or relating to electric steam generators or superheaters for high pressures and temperatures
IPC: F22B1/28
Filed: 1936-10-01
Abstract: 482,715. Electric heating. SIEMENSSCHUCKERTWERKE AKT.-GES. Oct. 1, 1936, No. 26670. Convention date, Oct. 1, 1935. [Class 39 (iii)] A steam generator or superheater for high pressures consists of a pipe b constituting a heating resistance and a fluid conduit which is connected to a polyphase supply system g so that the inlet h and outlet i are at the same potential. In both arrangements shown, the inlet and outlet may be earthed. Reference has been directedby theComptroller to Specifications16214/13, 339,649, [both in Class 39 (iii)], and395,709.
Patent GB-430952-A (GB)
Title: Improvements in or relating to filters for liquids
IPC: B01D35/18
Filed: 1934-09-17
Abstract: 430,952. Filters. MANUFACTURE DE MACHINES AUXILIARES POUR L'ELECTRICITE ET L'INDUSTRIE, 25, Boulevard de Courbevoie, Neuilly-sur-Seine, France. Sept. 17, 1934, Nos. 26714 and 26715. Convention dates, May 9 and July 28. [Class 46] Apparatus, especially suitable for the treatment of lubricating-oil, comprises filter elements 3 in a casing 2 arranged in a heated outer casing 1 to which a quantity of the liquid under treatment is supplied and from which it is forced into the casing 2. A layer of filtering-agent is deposited on the elements 3 from an auxiliary liquid drawn from a receptacle 14 by a pump 13 which supplies it to a tubular lower portion 11 of the casing 2. The auxiliary liquid after passing through the elements is returned to the receptacle 14 through a pipe 16. The liquid in the casing 1 is heated therein and may be treated with a decolourizing agent while agitated by air forced in through a pipe 8. The air collects above the liquid and, when a valve connecting the drain outlet 10 of the casing 1 with the part 11 is opened, serves to force the liquid into the casing 2 and through the filter elements. The filtered liquid is delivered by the pipe 16 to the receptacle 14 and discharged through a valve 15. A thermostat 19 controls an electric heating element 18. Lifting gear is provided to facilitate the removal of the cap 21 of the casing 2 and the filter elements attached thereto, when the latter require cleansing. Fig. 5 shows modified apparatus in which the liquid is forced from the casing 1 to the casing 2 through a ball valve 30 in the bottom of the casing 2. To form the filtering layer on the elements the necessary material is introduced in an auxiliary liquid into the casing 2 and the auxiliary liquid is forced through the elements by air supplied through a valve 26. The elements have impermeable upper portions 27. Gas collecting in the upper portion of the casing 2 during filtration is discharged through a valve 31.
Patent GB-1463847-A (GB)
Title: Core press
IPC: B22C9/10
Filed: 1974-06-17
Abstract: 1463847 Moulding a core of granular material CATERPILLAR TRACTOR CO 17 June 1974 [15 June 1973] 26747/74 Heading B5A A press for forming one half of a sand core on which a tube-tyre is formed comprises an annular mould body 48, 50, 54 defining an annular recessed portion 66 whereby sand and a binder located in the mould is pressed to shape by an inflatable bladder 32. A hoop 72, which is to be incorporated in the tyre, is supported in the mould by manually operated plungers 74. After tyre formation the core, which comprises two such halves, is disintegrated and removed from the tyre interior. The mould body comprises a base 16, rings 48, 50 and a closure ring 54. The latter is carried by radical members 56 of a structure 58 which is lowered on to the rings 48, 50 and attached to the base. The structure 58 is connected to rings 48, 50 by latches 60, and the bladder is supported by posts 40, a circular pipe 42 and members 44. The lower edges of the bladder are gripped between members 30, 36, and bladder inflation is effected via a valve 70. Curing of the sand core portion is effected by injecting CO 2  into it via annular manifolds 24, 26. (For Figure 2 see next page.)
Patent GB-847975-A (GB)
Title: Improved resilient support
Inventor: STOTT CHARLES FELIX
IPC: B60G11/12
Filed: 1958-08-20
Abstract: 847,975. Resilient bushes. VAUXHALL MOTORS Ltd. April 9, 1959 [Aug. 20, 1958], No. 26773/58. Class 108(3). The eye A of a leaf spring is supported on brackets D, E, by a pin H. Interposed between the eye A and the pin H are the two parts B, C, of an annular elastomeric bush. A cupshaped member F is welded to one end of the pin H and its tapering outer surface fits in a complementary hole in the bracket E. A shoulder on the opposite end of the pin H is clamped against the bracket D by a nut J. As the nut J is tightened the cup member F is drawn partly through the hole in the bracket E and the resilient bush is compressed axially. The hole in the bracket E which accommodates the cup member F is cylindrical.
Patent GB-883197-A (GB)
Title: Improvements in or relating to the jointing of electric cables
Inventor: NEWMAN WALTER
IPC: H01R4/50
Filed: 1959-08-06
Abstract: 883,197. Cable and sleeve couplings. HEPWORTH IRON CO. Ltd. April 4, 1960 [Aug. 6, 1959], No. 26849/59. Class 38 (1). Two conductors placed side-by-side in a metallic yoke 5 are compressed together and electrically connected by forcing a tapered pin 26, Fig. 6, through holes 12 in the arms of the yoke and between one conductor 13 and a bridging member 10 which bears against the inturned ends 8 of the yoke. The pin has a recess 27 to receive a spigot 28, Fig. 9, on an untapered pin 29 which is then forced through holes 12 to exert the final compression. The strands 13 of one conductor may be spread over the surface of the other conductor 2 and covered by a metal packing piece 15, or the strands may be formed into one or two bunches 39, Fig. 22, and held in a metal tag 37 folded to provide several thicknesses of metal alongside each bunch, e.g. as in Fig. 24. A straight joint between two end-to-end cables or cable cores may be made by enveloping the ends in a metal sleeve 41, Fig. 25, or a tube of metallic braid, which constitutes the second conductor, and compressing the sleeve on to the ends of the cables by means of yokes 42 and locking pins 29. The arms of the yoke may be bent inwardly and downwardly at their ends to form hooks for engagement with grooves in a corresponding bridging member.
Patent GB-735457-A (GB)
Title: Improvements in or relating to dashpots
IPC: G04F1/00
Filed: 1952-10-27
Abstract: 735,457. Dashpots. GENERAL ELECTRIC CO., Ltd., and PICKERING, 1. J. Oct. 16, 1953 [Oct. 27, 1952], No. 26954/52. Class 108 (3). [Also in Group XXXVII] A dashpot piston 10 has a leak valve 6 having a push-rod or stem 9 which is operated by a bimetallic strip 12, so as to vary the valve opening in response to temperature changes. The valve 6 may be adjusted by a fine-pitch screw 6 having a calibrated head (Fig. 2, not shown). In Fig. 2 (Prov.), a plunger 10 of a switch gear solenoid (see Group XXXVII) carries by means of three steel strips 33, a piston 18 which operates in a cylinder 41. Other strips 33a extending radially from the plunger 10, abut a ring 34. Ports through the piston 18 are controlled by a valve 37 having a stem 39 which engages a bimetallic strip 20. The stroke of the dashpot may be adjusted by screwing the cylinder 41 in or out upon its mounting 6. In Figs. 1 and 2 of the Provisional Specification (not described in the Complete Specification) the piston operates within a ported sleeve disposed in the cylinder. The dashpot effect depends upon the degree of entry of the piston into the sleeve. The initial position of the piston relative to the ported sleeve depends on the flexure of a bimetallic strip.
Patent GB-641492-A (GB)
Title: Improvements in horticultural cloches
IPC: A01G9/20
Filed: 1947-10-07
Abstract: 641,492. Cloches; composite bars. JEFFORD, J. A. W. Oct. 7, 1947, No. 26975. [Classes 20(i) and 20(ii)] A single or multiple barn or lean-to cloche has ridge, eaves or valley bars of a section consisting of a vertical web 13 spot-welded to a strip bent over to form two opposed angular flanges 14A branching from the sides of the web 13 at an intermediate point in its height, the flanges supporting glass roofing sheets and the bars being supported by posts 10, 11 provided at their upper ends with U-section lugs 17, 18 engaging the webs 13 or the strip bent over the webs 13. Roof ties 19, 20 overlie the roofing sheets and hook over the bars. The ends 23 of the ties 19 bear on the wall sheets 24 and hold them against the webs of the eaves bars, while the ends 20A of the ties 20 engage notches 15 in the flanges of the valley bars. Wall sheets at their butt junctions may be secured by means of metal clips 27, Figs. 2, 3 (not shown).
Patent GB-319005-A (GB)
Title: Softening agent for nitro-cellulose lacquer
IPC: C09D101/18
Filed: 1929-09-05
Abstract: 319,005. Masa Ges. zur Herstellung Kunstlicher Overflõchen. Sept. 15, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Lacquers.-A softening agent for nitrocellulose lacquers or solutions consists of a solution, which may be saturated, of rubber in benzine, benzol or other solvents, which is added to the lacquer.
Patent GB-257126-A (GB)
Title: Improvements in or relating to guide cards for the control of games of progression
IPC: A63F1/06
Filed: 1925-10-28
Abstract: 257,126. Clark, C. S. Oct. 28, 1925. Indicators, partner and like.-A set of guide cards for allotting players in the successive games of a progressive tournament comprises a co-ordinated series of cards each bearing on one face a distinctive play-name, such as the name of a flower, animal, person, or place, and an illustration of the name. and on the reverse face C<1> a schedule of directions D involving all the other names of the series, for determining the partners and places for the successive games. The cards may be single or folded, and may have provision for scoring, for example on the inside face E of a folded card opposite the face C' bearing the directions.