baber/WOPTO huggingface dataset:
Patent GB-491307-A (GB)
Title: Improvements in and relating to filters
IPC: B01D33/00
Filed: 1936-11-28
Abstract: 491,307. Filters. WIEBE, J. Nov. 28, 1936, No. 29413. [Class 46] Relates to rotary suction filters having a perforated drum, supporting a filter cloth, in which the suction is removed from certain cells as they come to the position in which the filter cake is removed by the application of pressure and in which cleansing liquid may be applied. The control of suction and pressure is effected by means applied to the inner drum surface which close the passages leading from each cell to suction as they come into the stripping position, pressure being applied to the same or other passages. In the form shown in Figs. 1 and 3, the drum comprises a vacuum chamber 6 and high-pressure chamber 7, the narrow cells 12 being formed by bars 13 supporting the filter cloth 14. Each cell 12 communicates by one or more passages 15 with the chamber 6 and by a passage 16 with chamber 7. Those passages 15 which are in the stripping position are closed by annular rubber tubes 11 carried by a rotating cylinder 10, and a fixed blade 18 forces back a rubber ring 17 to connect the same passages to the pressure chamber 7. In the form shown in Figs. 5 and 6, the cells 12 are formed as in Fig. 1, and the passages 15, normally connected to the suction chamber 6, are, in the stripping position, disconnected from suction and connected to pressure by stationary sliding members 20 engaging the inner surface of the drum. The members 20 may have cavities 22, 24, the cavities 22 being connected by pipe 23 to pressure to disengage the filter cloth from the surface of the drum, cavity 24 being subsequently connected to suction so that turbid filtrate can be drawn off before the fresh filter cake has formed. Additional cavities like 24 may pass cleansing liquid to the cells 12 and filter cloth. The members 20 are pressed against the drum by springs. Specifications 169,870, 283,876, [both in Class 46], and 436,975 are referred to.
Patent GB-171291-A (GB)
Title: Improvements in combined steam generators and engines
IPC: F01K21/02
Filed: 1920-10-18
Abstract: 171,291. Hoover, W. I. Oct, 18, 1920. Linkage gears; tappet gears.-In an oscillating- cylinder engine wherein liquid from a tube 60 is forced past a spring-controlled valve 53, through a spraying nozzle 55, against a recessed plate on the piston where it is finally atomized before conversion into steam by contact with molten lead in the cylinder, the admission valve 61 is reciprocated by an eccentric 64 through a lever 66, and rods 65, 69. The stem of the exhaust valve 80 which is mounted in the piston carries an arm 85 which engages a stationary adjustable tappet 86.
Patent GB-653595-A (GB)
Title: An improved method of manufacturing tens transfer pinions for use in counting mechanism
IPC: G06M1/14
Filed: 1948-11-12
Abstract: 653,595. Making wheels for counters. LANDIS & GYR SOC. ANON. Nov. 12, 1948, No. 29485. Convention date, Dec. 3, 1947. [Classes 83 (ii) and 83 (iv)] Drawing-dies ; forging-dies ; die-rolling axial rolling.-In making a tens-transfer actuating- pinion for use in counting-mechanism, the pinion blank 1, Fig. 1, is produced from a lightmetal rod by turning, drilling and pressing to form small bearing holes 5, 6 at each end, driving and detent teeth 11, 12 are then formed by a further pressing operation, and finally the shape of the teeth is corrected by a rolling and trimming operation. The rod is machined in an automatic lathe to form a hub part 5, drilled to provide an enlarged recess 3 and smaller bearing-hole 8, constricted at one end on a pin to form the bearing-hole 6, and then separated from the rod on the line 4. Teeth are produced on the blank by-engaging the flange thereof on a die, Fig. 2, formed with teeth-cutting edges, and locating the bearings 5, 6 on a mandrel 10a projecting from a punch 8 which has teeth-forms 9, 10, the teeth. 9 projecting in front of the punch to produce a smaller bearing area than those on the die. The teeth 9, consequently, penetrate the blank at a faster rate than the blank is advanced through the die until they have reached their maximum penetration, when the base of the punch 8 contacts the blank which is then advanced through the die at the same speed as the punch to produce the pinion shown in Fig. 4 in which alternate teeth 11 are of halflength. The teeth may be formed in two stages by the use of a second die. Axial rolls 13, Fig. 5, having edge-cutting discs 18, 19, pockets 16, 17, to receive the teeth of the blank 1, and cutting edges 17a, are provided to cut the edges of the gear to square-form and roll the flanks of the teeth. The rolls, which are interconnected by gearing (not shown), to rotate in the same direction through one complete revolution for each pinion operated upon, may have a crankhandle in the gearing to engage a releasable abutment at the end of each revolution, or may be driven automatically by power means. A mandrel 22 for delivering pinions to the roll pass is actuated against spring-pressure by a hand lever 24 pivoted at 23 and caused to separate the rolls 13 by cam action between a pin 28 on the mandrel and tracks 29 carried by the rolls. A pinion is placed on an extension 25 and located by projections 26 on the end of the mandrel, with the latter raised through the roll pass, and delivered to the roll pass through cut-away portions in the discs 18, 19, the rolls being actuated by spring-pressure to grip and retain the pinion. After the rolling operation, the mandrel 22 is raised to remove the finished pinion from the roll pass. In a modification, the axial rolls 13 may be replaced by racks sliding in parallel guides.
Patent GB-226353-A (GB)
Title: Collapsible frame aerial
IPC: H01Q7/02
Filed: 1923-11-22
Abstract: 226,353. Sterling Telephone & Electric Co., Ltd., Miller, T. D., Ward-, and Holbeach, W. M. Nov. 22, 1923. Aerials.-A collapsable frame aerial 1, Fig. 1, is wound upon a cross 2 - - 5, of which three arms 2, 3, 4 are adapted to fold relatively to the fourth arm or stem 5 about a diagonal 3, 4 of the frame, while the arms 3, 4 are arranged to fold together on to the arm 2. The upper arm 2 is rigidly secured between a cross - shaped centre-pin 9 and a semi-circular plate 15, Figs. 3 and 4. The horizontal arms 3, 4 are pivoted on pins 16, 17 and normally rest on ledges formed on the horizontal arms of the centre piece 9. A horizontal pin 18 is secured in a gap in the semi-circular plate 15, and is partially enclosed by the curled end of a plate 19 secured to the stem 5. A spring catch 20 normally holds the stem 5 and the centre-piece 9 in contact. For collapsing the frame, the catch 20 is disengaged, and the three arms 2, 3, 4 together with the plate 15 and centrepiece 9 are turned about the pivot 18, until the arm 2 lies adjacent, to the stem 5. The arms 3, 4 may then be turned about their pivots 16, 17 until they lie close to the arms 2 and 5. The turns of the conductor 1 are gripped by screws 7 between coned washers 8 and countersunk recesses in strips of ebonite 6 which are let into the outer portions of the arms 2 - - 5. The ends of the conductor are led along grooves 21 in the arm 5 to the conductive portions of a two-part plug 24, Fig. 6, which enters a supporting socket 25 having three hinged legs 26, and also makes electrical connection with the leads 29.
Patent GB-848576-A (GB)
Title: Improvements in rotary cocks and valves
IPC: F16K5/04
Filed: 1957-09-19
Abstract: 848,576. Valves. CRANG, T. F. Sept. 9, 1958 [Sept. 19, 1957], No. 29551/57. Class 135. A rotatable plugvalve is provided with two resilient gland sealing rings 23, 24 disposed in grooves in the plug 7 on opposite sides of aligned inlet and outlet ports 12, 13 of the valve body, and a third resilient sealing ring 26, which is located in a groove angled across the plug, seals the inlet from the outlet in the shut position of the valve as shown. The plug has two recesses 27, 28 on opposite sides of the third ring which constitute flow passages through the valve in the open position. The ports 12, 13 are chamfered laterally into the bore of the valve body to compensate for the presence of the third ring across these ports in the open position. A pin 20 co-operating with stops limits the rotation of the plug to 90 degrees.
Patent GB-699866-A (GB)
Title: Improvements in or relating to antiparallax mapping device
Inventor: JONES KENDALL
IPC: G01R13/20
Filed: 1950-12-04
Abstract: 699,866. Cathode-ray oscilloscopes. GILFILLAN BROS., Inc. Dec. 4, 1950, No. 29603/50. Class 37. [Also in Groups XL (a) and XL (c)] Relates to means for optically superimposing indicia, e.g. a map, on the screen of a cathoderay tube having a phosphor emitting light of one colour, e.g. green-yellow, in response to bombardment by an electron beam and by irradiation by light of a different colour, e.g. blue or ultraviolet. According to the present invention a filter transparent to said first colour, green-yellow, is mounted exterior to the cathoderay screen and the filter is made additionally transparent to light of said second colour, blue, in correspondence with the indicia, e.g. by cutting slits in the filter, light of said second colour, blue, being projected onto the upper surface of the filter so that a blue image of the indicia is projected onto the phosphor causing it to emit a corresponding green-yellow image which is coincident with the image produced by the electron beam thereby avoiding parallax errors. The invention is described as applied to a tube with a double-layer phosphor having an inner short-persistence phosphor 36, Fig. 2, emitting, in response to the electron beam, blue light which excites a long persistence phosphor 35 emitting green-yellow light. As shown in Fig. 2, the filter 11 is mounted on a transparent plastic plate 11A in contact with the viewing surface 10A of the tube envelope 10, but if the filter is displaced from the surface 10A any distortion due to the angle at which the light rays 88 pass through the filter may be corrected by distorting the pattern on the filter. The filter may comprise a photographic emulsion developed to form the required pattern or a dyed film with the dye neutralized in correspondence with the pattern and the light source may comprise an incandescent lamp 16, Fig. 1, and blue filter 17 mounted in a housing 15 attached to the tube housing 14, the light being reflected onto the filter 11 by means of a halfsilvered plate 18 which may also be a greenyellow filter. The invention is described as applied to a combined azimuth and elevation G.C.A. radar display, Fig. 3, comprising a circular filter 11 with slots 11B producing dotted elevation and azimuth calibration marks and having cut-out portions 91, 92 over which are mounted separate filters 89, 90 with transparent lines 89A, 90A, indicating the glide and approach paths, filters 89, 90 being held in position by spring clips 48, Fig. 1.
Patent GB-820098-A (GB)
Title: Improved tandem axle driving mechanism
IPC: B60K17/36
Filed: 1957-09-20
Abstract: 820,098. Ratchet clutches. EATON AXLES Ltd. Sept. 20, 1957 [Jan. 14, 1957], No. 29625/57. Class 80 (2). [Also in Group XXXI] In a tandem axle construction for a vehicle (see Group XXXI), only one of the axles is driven unless slipping occurs when a clutch automatically connects the drive to the second axle. The normally driven axle rotates at reduced speed a gear 40 having one-way clutch teeth 64 in mesh with teeth 66 on a spring- loaded member 68 slidably splined on a shaft 42 geared to the second axle. Constant overrunning between the teeth 64, 66 may be avoided by a speed-responsive device which separates them at a predetermined speed. A member 58 axially displaceable by a bifurcated yoke and splined on the shaft 42 may be conjointly operable with the reverse mechanism in the vehicle transmission to give a positive twoaxle drive.
Patent GB-445622-A (GB)
Title: Improvements in or relating to stockings and socks
IPC: A41B11/02
Filed: 1934-10-17
Abstract: 445,622. Socks and stockings. MORLEY, Ltd., I. & R., and BUTTER, H. F., 18, Wood Street, Cheapside, London. Oct. 17, 1934, No. 29661. [Class 141] A sock or stocking is provided at the upper part of the toe with an elastic band or section A of substantially uniform width. Similar bands may be provided at the back of the heel and /or underneath the foot towards the toe end. The sections may be formed during weaving by replacing the ground thread by elastic thread or they may be sewn in afterwards. According to the Provisional Specification, the sock or stocking may be provided with any of the elastic sections.
Patent GB-391372-A (GB)
Title: Mouthpiece for the production by extrusion of building stones with narrow transverse perforations
IPC: B28B3/26
Filed: 1932-10-24
Abstract: 391,372. Extruding perforated building-stones. WEIBEL, E., (trading as WEIBEL & CO.), Oberburg Burgdorf, Switzerland. Oct. 24, 1932, No. 29704. [Class 87 (ii).] An extrusion die for producing building-stones with narrow transverse perforations has the mandrel bridges f uniformly spaced on the rear of the die a and converging towards the front, the bridges being the same thickness as the mandrel shanks g at their front edges, thicker towards the rear, and rounded on their rear edges. The die a has a converging portion b and a mouth c which converges only slightly. The mandrel bridges f which are of hard steel are carried bv bars d held by screws e. The mandrel shanks g converge towards the front and carry conical heads h of any desired cross section.
Patent GB-196950-A (GB)
Title: Improved process for the manufacture of road-dressing materials
IPC: B01F3/08
Filed: 1921-11-08
Abstract: Dust-laying compositions are formed by diluting with oil or water emulsions of bituminous or highly viscous oilv substances in water formed by intensive mechanical disintegration in an apparatus such as that described in Specification 155,836, having a peripheral speed of not less than 1000 metres per minute. Preferably asphalt or hard pitch, which may be liquefied by heat or addition of a diluent, is mixed with about an equal quantity of water.  Small proportions of organic bodies containing sulpho-groups, or sodium or ammonium oleate, or an alkali or alkali salts of phenol may be added to accelerate the process.  A small quantity of a protective colloid may be added or substituted for the same purpose.  The dust-laying compositions may also be prepared by emulsifying mixtures of very dilute bituminous matter in oil and water.  Specifications 6618/05 and 185,779 are referred to.
Patent GB-629501-A (GB)
Title: Improvements in or relating to devices for forcing uncompleted shoes on to lasts
IPC: A43D9/00
Filed: 1947-11-08
Abstract: 629,501. Forcing uncompleted shoes on to lasts. BRITISH UNITED SHOE MACHINERY CO., Ltd., PRATT, J. W., and FREER, C. H. Nov. 8, 1947, Nos. 29785/47 and 351/48. Addition to 624,158. [Class 17 (i)] After the assembled upper, sock lining and platform cover have been stretched over a last by treadle-operated means as described in the parent Specification, the cover at the heel is turned down over the last to lie against the upper by operating a hand lever which causes a member shaped like a shoe horn to move the cover down over the sides of the last. In one form, operation of a rod 23 by a treadle turns a pair of levers 19 about their pivot 16 to cause two lever arms 17 to be engaged by a block 20 attached to the levers 19 and move a block 27, pivotally carried by a lever 26 pivoted on a cross bar 18 which connects the arms 17, rearwards and downwards.. The block 27 in its movement engages the inner face of the upturned heel portion 42 of a platform cover of a shoe assembly mounted on a last 15 for slip-lasting, with the toe end directed away from the operator. An upstanding portion of bracket 14 clamped on the last support 10 prevents turning of the last on its peg 13. A shoe horn member 34 is secured to a lug on a collar 32 rotatably mounted on a pin 33 passing through a pair of lever arms 31 pivoted to the lever 26, and, on movement of a hand lever 43 formed by the free ends of the arms 31, after the upper has been stretched over the last, turns down the platform cover 42; as the slip lasting operation concludes, and releases the block 27 for movement away from over the shoe bottom members to facilitate removal of the shoe on its last. A second construction is described in which, instead of the block 27, a metal plate having an outline similar to that of the heel seat portion of a last of average shape and with an upstanding flange is employed with a lost motion connection with the lever arms 17. The shoe-horn like member co-operates with a gripper element which is moved on operation of the treadle, into contact . with the outer upturned face of the heel end of the platform cover to apply a heelward pull to the cover as the plate and shoe-horn are moved rearwardly of the last.
Patent GB-792115-A (GB)
Title: Improvements in and relating to amines
IPC: C07D295/125
Filed: 1956-10-01
Abstract: The invention comprises N : N1-bis-[(1-aminocycloalkyl) - methyl] - piperazines and their production by the catalytic hydrogenation of the corresponding dinitro compounds.  The process is preferably carried out in a slurry with a solvent for the product such as a lower alkanol (with or without water), an ether or a hydrocarbon. Suitable catalysts are copper and the Group VIII metals either finely-divided or on a support; Raney nickel is preferred.  When the hydrogenation is complete the catalyst and other insoluble material is filtered off and the diamine recovered by distillation of the solvent.  The process may be carried out from 1-1000 atmospheres and at any temperature between the freezing and boiling-points of the mixture, but preferably above 20 DEG  C.  The starting materials can be made from piperazine, nitrocycloalkane and formaldehyde as in Specification 792,116, and need not be isolated before the hydrogenation.  The process of the invention can be batch-wise or continuous.  Examples show the preparation of N : N1-bis-[(1 - aminocyclohexyl) - methyl] - piperazine, N : N1 - bis - [(1 - aminocyclohexyl) - methyl]-2 - methylpiperazine, N : N1 - bis - [(1 - aminocyclohexyl) - methyl] - 2 : 5 - dimethylpiperazine and N : N1 - bis - [(1 - aminocyclopentyl)-methyl]-piperazine. The cycloalkyl group may also be cycloheptyl.  The products are useful for chelating metals, e.g. calcium, barium, copper, cobalt and nickel.ALSO:Epoxy resins are cured by means of N:N1-bis - [(1 - aminocycloalkyl) - methyl] - piperazines, suitable compounds being N:N1-bis-[(1-aminocyclohexyl) - methyl] - piperazine, N:N1-bis - [(1 - aminocyclohexyl) - methyl] - 2-methylpiperazine and N:N1 - bis - [(1 - aminocyclopentyl) - methyl] - piperazine.  Derivatives of 2:5-dimethylpiperazine may be used and the cycloalkyl group may also be cycloheptyl.
Patent GB-985329-A (GB)
Title: Improvements in and relating to draught exchluder devices
IPC: E06B7/22
Filed: 1962-08-03
Abstract: 985,329. Draught excluders. G. O. BARTON. Nov. 4, 1963 [Aug. 3, 1962], No. 29862/62. Heading E1J. A draught excluder for the bottom or sides of a door &c. comprises a strip of felt 11 sandwiched between a carrier strip 10 of wood and a capping strip 12 secured to a door by screws 14 so that the felt projects beyond the other strips at the working edge. The three elements 10, 11, 12 may be secured together by adhesive and the unit secured to the door by adhesive.
Patent GB-933112-A (GB)
Title: Means for securing rails to sleepers
IPC: E01B9/48
Filed: 1959-09-01
Abstract: 933,112. Securing railway rails to sleepers. G. W. HAMMER. Sept. 1, 1959 [Sept. 2, 1958; Sept. 3, 1958], No. 29865/59. Class 104 (2). A. railway rail is secured to a sleeper 5 by a clamp comprising a plate member having a linear part 6 extending beneath the rail flange 2 and connected to a second part 3 provided with a hole 13 for securing the plate member resiliently to the sleeper 5 by a bolt 4 and a tongue 7 formed integrally with, or provided as a separate unit co-operating with the second part 3 to bear resiliently on the upper surface of the rail flange 2. The head of the bolt 4 is accommodated in a recessed portion of the second part 3 or, Fig. 5 (not shown), the upwardly turned arms of a U-shaped member. In an alternative arrangement shown in Fig. 6, the tongue 7 is formed as a separate member and is driven through holes in the walls of the second portion 24 and held in position by the bolt 28. Clamps may be provided on the inner, outer or both flanges of the rails of a track depending on the forces transmitted to the rails, Fig. 4 (not shown).
Patent GB-636522-A (GB)
Title: Improvements in horizontal radiants for gas fires
IPC: F24C15/24
Filed: 1948-11-17
Abstract: 636,522. Radiants. TENNANT & SONS (WARRINGTON), Ltd., J., and TENNANT, D. R. Nov. 17, 1948, No. 29876. [Class 126] A horizontal radiant for gas fires comprises two spaced horizontal bars 2 joined by a plurality of arched bridge sections 1 on the inner surface of each of which is an inwardly projecting web 5. The bridge sections 1 at each end of the radiant are deeper than the intermediate bridge sections and provide an inverted U-shaped opening 4 for fitting on the gas burner. In fires in which the burner is long enough to accommodate more than one radiant holes are provided in each of the end bridge sections 1. The webs 5 are inwardly tapering and each space between adjacent bridge sections 1 serves as a combustion chamber for one orifice of the burner.
Patent GB-1466279-A (GB)
Title: Deck structure and method for building same
IPC: B63B9/06
Filed: 1974-07-05
Abstract: 1466279 Offshore structures AKERS MEK VERKSTED AS 5 July 1974 [5 July 1973] 29924/74 Heading E1H The deck of an offshore platform is fabricated, e.g. on land, while being supported at points 13 by which it will be supported when at its offshore location, to minimise distortion of the structure when in place and facilitates outfitting during construction, the deck is being transported by barges 5 which are raised (e.g. by ballasting or by the tide) to take the load of the supports 2, and subsequently the barges are lowered on site to lower the deck onto the support columns of the platform. The support columns may be supported on the sea bed, or semi-submersible. The deck may be of cellular construction, with intersecting partitions arranged at right angles to form a series of boxes into which equipment may be installed.
Patent GB-445682-A (GB)
Title: Improvements in or relating to electric conductors and methods of insulating them
IPC: H01B3/10
Filed: 1935-10-30
Abstract: 445,682. Condensers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 30, 1935, No. 29971. Convention date, Oct. 31, 1934. [Class 38 (ii)] [See also Group XXXVI] Electric condenser plates insulated by an oxide layer, for example, aluminium oxide, are impregnated with styrol. The process is preferably carried out in vacuum whereby moisture is first removed.
Patent GB-632613-A (GB)
Title: Improvements in or relating to methods of and apparatus for the continuous annealing of brass and the like alloys
IPC: C22F1/08
Filed: 1947-11-11
Abstract: 632,613. Annealing brass. GENERAL ELECTRIC CO., Ltd., and DOVEY, D. M. Nov. 11, 1947, No. 30002. [Class 51 (ii)] [Also in Group II] In a method of continuously annealing brass or like alloy containing a volatile constituent, the alloy is passed through a heating chamber of small volume and flash annealed and then through a cooling chamber, a protective gas, e.g. cracked ammonia, being supplied at the entrance end of the heating chamber and the exit end of the cooling chamber and removed at a point preferably at the junction of the heating and cooling chambers, such that none of the volatile constituent is deposited on the alloy in the cooling chamber. As shown, a brass wire or strip 3 passes through a tube 2, the heating part of which is mounted in a muffle furnace 1 which may be heated by electric elements 6. A neutral gas is led into the tube through tubes 8, one at the entrance to the heating chamber and the other at the exit end of the cooling chamber and out through a tube 9 of such a position that the temperature is above that at which the volatile constituent-zinc-is condensed. The temperature in the heating zone may be 1000‹ C.