baber/WOPTO huggingface dataset:
Patent GB-682212-A (GB)
Title: Power-driven mechanism for operating type bars and other instrumentalities of typewriter or like machines
IPC: B41J7/92
Filed: 1950-05-25
Abstract: 682,212. Typewriters &c. ROYAL TYPEWRITER CO., Inc. May 25, 1950 [July 1, 1949], No. 13208/50. Class 100 (iv). A power operated typewriter or like machine comprises a rotating snatch roll 9, Fig. 3, and a driving pulley 69 whose effective diameter on which a driving belt 68 engages can be varied to adjust the speed of the pulley and snatch roll 9 to vary the face transmitted to the various operated parts e.g. a typelever mechanism as shown in Fig. 9. The key-lever mechanism is similar to that described in Specification 674,941, but means are provided whereby the force of the impression of individual type-levers may be adjusted, and comprises an extension 46 of the actuator 10 which can be bent into various positions as indicated at 46a and 46b so that the extent to which the actuator pawl nose 23a enters a tooth space on the snatch roll 9 is controlled. If the extension 46 is moved into position 46b the pawl 23 makes a greater clockwise movement and the drive of the snatch roll on the nose 23a is accordingly greater.' The means whereby the power to actuate the type levers or other mechanisms is collectively adjusted, comprises a drive to the variable diameter driving pulley 69, driven from a constant speed source D, Fig. 6, geared down by belt and pulley drives 50-60 driving a shaft 61 carrying a V-groove pulley 67 around which is trained a belt 68 rotating the variable diameter pulley 69. This pulley comprises an axially fixed flange 84, Fig. 3, and an axially slidable flange 90 rotatably secured to a pin 80 secured to the snatch roll 9. To adjust the effective diameter of the pulley the distance between the two flanges 84, 90 is adjusted, the slack in the belt 68 being taken up by a pair of spring loaded jockey pulleys. Flange 90 transmits rotation to the flange 84 through a slotted collar 93, keyed to the pin 80 and engaging a pin 96 extending from the flange 84. Axial movement imparted to the flange 90 is derived from a knob 108 carrying markings on a surface M which are aligned with a pointer 113 formed in the framework 114. The knob is rotatable between fixed limits to turn a screw 104 in a bushing 100 to transmit, through a ball 102 and a pin 79, an axial movement to the snatch roll 9 and pin 80 against the pressure of a return spring 107. Carriage-returning mechanism. - Carriagereturn movement is effected by a mechanism actuated from the snatch roll 9 as described in Specification 674,943 operating a fork 132, Fig. 6, which axially moves a cone 130 leftwardly spreading clutch-engaging fingers 131 which operate to expand a ring 129 to transmit the drive from the motor driven shaft 61 to a drum 128 on which is wound a carriage-pulling band 125.
Patent GB-132420-A (GB)
IPC: F16H61/02
Abstract: 132,420. Huart, A. Dec. 24, 1918. Variable-speed and reversing gearing, of the kind in which the changes are effected by means of rods such as s, s<1> sliding in shafts and carrying adjustable means for operating friction clutches, comprises a special form of clutch. A shaft u drives through gears v, v<1> a shaft x, which drives a shaft b in either of two directions through reversing-gear w, w<2>, w<1>and gears e<3>, e<6>, The. shaft b carries loose gears a' - - a<4> meshing with gears c<1> - - c<4> secured to a driven shaft d. The clutches are constructed as shown in Fig. 3. Transversely of the operating-rods s, s<1> are adjustable screws i adapted to engage the ends of radial plungers k, which pass through holes in the shaft b into holes l in gripping-members pot the clutches. The other gripping-members o are carried round with the shaft b by connecting- members q. Levers m, n engage the plungers k and pass between the members o, p, so as to thrust them asunder into clutch engagement when the plungers k are operated. The plunger k of each clutch slides in a different longitudinal grooves h<1>--h<4>in the rod s.
Patent GB-471993-A (GB)
Title: Improvements in and relating to back-to-back grates
IPC: F24B1/28
Filed: 1936-05-11
Abstract: 471,993. Double - fronted stoves; doors. URE, A. F. May 11, 1936, No. 13247. [Class 126] In a double-fronted stove with a single fireplace heating a living-room on one side of a partition wall and cooking apparatus on the other side of the wall, a heating chamber B which forms a hatchway between the two rooms is proportioned and located so that the width of the back wall H of the hot-plate E on each side of the hatchway is approximately one- - quarter of the width of the opening of the hatchway, and the doors of the hatchway on the cooking side slide horizontally and are divided into four portions D, D<1>, two portions sliding to one side and two to the other, each two portions overlapping so as to occupy the space between the side wall G of the hatchway and the side wall F of the hot-plate and leave the opening to the hatchway completely uncovered. Grooves or rails in the hot-plate and the lintel of the chamber guide the doors, which may have projections or feet for engagement with the grooves. Flanges J, L, M coact to cause the parts of the doors to move together. Specification 396,839, [Group X], is referred to.
Patent GB-592692-A (GB)
Title: Apparatus for cutting grass, hedges, hay or the like
IPC: A01D34/412
Filed: 1945-05-28
Abstract: 592,692. Reapers; lawn-mowers; hedge-cutters. SMYTH, H. W. S. May 28, 1945, No. 13262. [Classes 6 (ii) and 6 (iii)] Apparatus for cutting grass and the like is characterised by one or more rigidly-mounted bars or similar unsharpened members arranged to be moved in a direction transversely of the longitudinal axis thereof so as to engage the stems at such speed, of the lower order of about 100 ft. per second, that such stems are parted by failure in mechanical shear. In the lawnmower shown, a cage comprising a pair of spaced-apart discs 5, a number of cutting bars 6 each extending between a pair of arms 8 slidable radially in guides on the discs 5 and clamped in position, and a shaft 4, is mounted on the frame 1. The cage is driven by a belt pulley 12 from an electric motor 11 at a high speed and on impact of said bars 6 on the stems to be cut the latter are parted by mechanical shear. In a modification, Fig. 3, the cage unit is applied to a hedge cutter, the cage 4, 5, 6 being driven by a flexible shaft 16 and being mounted in a casing fitted with a pair of handles 15. In a further modification, Figs. 5 and 6, not shown, a number of discs are arranged to rotate about a vertical axis in line across the front edge of the machine, each disc carrying two bars situated diametrically opposite each other, and displaced at right angles with respect to those of the adjacent disc. Drive taken from the power take-off shaft of a tractor pulling the machine. The Provisional Specification also describes constructions incorporating modified cutting elements and supports therefor, and states that the drive may be taken from the ground wheels.
Patent GB-169952-A (GB)
Title: Improvements in the process of dry distillation and coking of raw peat and the like
IPC: C10B53/02
Filed: 1921-05-10
Abstract: 169,952. Haddan, A. J. H., (Torfverwertungsges Dr. Pohl und von Dewitz). May 10, 1921. Addition to 158,513, [Class 55 (i),. Coking &c.]. Multi-stage processes.-Water is liberated from the peat mass by the heat and pressure developed by heating the peat zones in apparatus of the type described in the parent Specification. Either the inner zones alone are heated or they are heated more strongly in order that the steam works outwards. The steam pressure, for example about eight atmospheres, developed when the inner heating-tube b is heated, propels the liberated water to the discharge pipe f, the cock g being closed until sufficient water has accumulated. Mechanical pressure may also be applied or the two processes may be successive. According to the Specification as open to inspection under Sect. 91 (3) (a) of the Act, the peat mass and water may alternatively be pushed out of the pressure vessel and subsequently further treated. This subject-matter does not appear in the Specification as accepted.
Patent GB-569785-A (GB)
Title: Process of refining stainless steel scrap having a high chronium content
IPC: C21C7/00
Filed: 1943-08-16
Abstract: 569,785. Refining alloys. SANDVIKENS JERNVERKS AKTIEBOLAG. Aug. 16, 1943, No. 13278. Convention date, Aug. 12, 1942. [Class 82 (i)] Stainless steel scrap containing chromium and/or chromium and nickel or molybdenum is refined by melting the scrap and blowing air through the molten bath for such a time that the chromium content of the bath is reduced to below 10 per cent, preferably below 5 per cent, and the carbon content to approximately onehundredth of the chromium content, the molybdenum content remaining unchanged. The melting may be carried out in an electric furnace, preferably a high-frequency furnace and the blowing in a converter.
Patent GB-632364-A (GB)
Title: Screw press for mixing and extruding synthetic plastic materials, more particularly thermoplastic materials
IPC: B29B7/48
Filed: 1946-05-02
Abstract: 632,364. Extrusion machines. SOC. P. A. LAVORAZIONE MATERIE PLASTICHE. May 2, 1946, No. 13337. Convention date, March 29, 1944. [Class 87 (ii)] [Also in Groups II, XXVI and XXX] An extrusion press comprises two or more screws with intermeshing threads and rotating in the same direction, having one or more conical sections M-N in which the taper of the cone is opposite to that of the edges of the screw threads The screws also have a cylindrical section N-P. The plastic material is compressed in the conical section in which the clearance between the casing and the screw diminishes progressively and is mixed in the cylindrical section. A modification comprises two conical sections the first having a thread of greater taper and pitch.
Patent GB-928928-A (GB)
Title: Improvements relating to liners for grinding mills
Inventor: DIXON RONALD HERBERT THOMAS
IPC: B02C17/22
Filed: 1961-04-13
Abstract: A composite liner for grinding mills, e.g. ball and rod mills, comprises a carbidic cast iron face layer metallurgically bonded to a backing of softer and tougher metal or alloy.  Preferably, the face is of nickel-chromium white cast iron and the backing spheroidal graphite cast iron.  In an example, molten cast iron for the face layer having the composition: C 3.0%, Si 0.4%, Mn 0.4%, S 0.08%, P 0.02%, Ni 3.8%, Cr 2.0%, the balance being iron, is poured at 1450 DEG  C. and when the surface is partially solidified, molten cast iron for the backing layer having the composition: C 3.5%, Si 2.4%, Mn 0.2%, S 0.02%, P 0.03%, Mg 0.06%, the balance being iron, is then poured on top.  To prevent oxidation of the surface of the first metal a flux such as borax may be placed in the mould or added in liquid form with the first metal.  The composite casting may be heated at 275 DEG  C. for 8-24 hours to relieve internal stresses, temper any martensite and transform austenite to bainite.  This heat treatment may be preceded by heating at about 450 DEG  C. for 4-8 hours to precipitate carbon from austenite, thus causing further martensite to be formed on cooling below the Ms temperature.
Patent GB-578873-A (GB)
Title: Improvements in or relating to copper base alloys
IPC: C22C9/04
Filed: 1941-10-17
Abstract: 578,873. Alloys ; heat-treating and working. COOK, M., ALEXANDER, W. O., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 17, 1941, No. 13376. [Classes 72 and 82 (i)] [Also in Group XXII] Condenser tubes, ferrules, &c. are made from copper zinc aluminum alloys covered by the triangle A, B, C, in the Figure, the alloys being retained completely in the alpha phase by effecting all necessary hot-working and annealing treatments at 500-650‹ C., preferably at 600‹ C. The alloys may also contain a small proportion of an agent to reduce or prevent zincification, e.g. 0.02-0.06 per cent of arsenic and may also contain up to 0.5 per cent of each of one or more of iron, silicon, phosphorus, cadmium, silver, tin, lead and nickel, the total amount of these elements not exceeding 2 per cent.
Patent GB-273259-A (GB)
Title: Improvements in means for operating loud speakers
IPC: H03C1/10
Filed: 1927-05-18
Abstract: 273,259. K÷nemann, H. June 25, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Repeating and amplifying systems. - In a public address system, the sound frequency is arranged to modulate a high frequency generator of the kind used in wireless broadcasting. The Figure shows a magnetic modulator D and a h i g h frequency generator G driven from the mains. The loud-speaker S is fed through a rectifier H and the filter circuit X, Y, Z. The system dispenses with the use of high continuous current voltages.
Patent GB-437745-A (GB)
Title: Manufacture of new monoazo dyestuffs
IPC: C09B29/08
Filed: 1934-05-03
Abstract: Water-soluble monoazo dyes are made by coupling a diazotized p-nitroaniline with an N-sulphatoethyl or propyl-N-b -alkoxyethylaniline, the resulting dyestuffs being devoid of water-solubilizing groups other than the sulphato groups. Alternatively, the insoluble azo dyes from diazotized p - nitroanilines (no SO3H or COOH groups) and N-hydroxyethyl- or propyl-N-b -alkoxyethylanilines are converted into their sulphuric esters.  They are suitable for dyeing or colouring acetate artificial silk, wool, silk, leather, nitrocellulose lacquers, spirit stains, varnishes and quickdrying inks.  In examples, dyes from the following components are specified: (1)--(8) p-nitroaniline, 6-chloro-2 : 4-dinitroaniline, ochloro-p-nitroaniline, 2 : 4-dinitroaniline; Nsulphatoethyl - N - b  - ethoxyethyl - m - toluidine, N - sulphatoethyl - N - b  - methoxyethyl - aniline or m-amino-p-cresolmethylether; (9) the dyestuff 2 : 4-dinitroaniline --> N - b -hydroxyethyl-N - b -ethoxyethyl-m-toluidine is treated with sulphuric acid monohydrate.  Samples have been furnished under Sect. 2 (5) of dyestuffs (1) and (3) p-nitroaniline or 2 : 4-dinitroaniline --> N - b  - ethoxyethyl - N - g  - sulphatopropyl - m - toluidine; (2) and (4) o-chloro-p-nitroaniline or 6 - chloro - 2 : 4 - dinitroaniline --> 3 - N - b -ethoxyethyl - N - g  - sulphatopropylamino - 4 - methoxytoluene.  N-sulphatoethyl- or propyl-N-b -alkoxyethyl anilines mentioned above are made by treating the corresponding N-hydroxyalkyl-N-b -alkoxyethyl derivatives with chlorosulphonic acid in a solvent.  N-hydroxyethyl- or propyl-N-b -alkoxyethyl anilines may be made by condensing an N-b -alkoxyethylaniline with ethylene or propylene chlorhydrin or with an alkylene oxide or by condensing an N-monohydroxyethyl- or propylaniline with a b -chloroethylalkylether or a toluene-p-sulphonic-b -alkoxyethylester.  The Provisional Specification refers to N-sulphatoalkyl-N-b -alkoxyethylanilines as coupling components. Specification 237,739, [Class 15 (ii)], is referred to.
Patent GB-258636-A (GB)
Title: Improvements in and relating to buffers for doors, windows and the like
IPC: E05F5/06
Filed: 1925-05-22
Abstract: 258,636. Johnston, G. W. P. May 22, 1925. Stops.-A roller is resiliently mounted in a slotted and flanged U - shaped bracket a secured in a recess in a door &c., and adapted to engage the post or a plate m suitably bevelled and grooved to prevent slamming and rattling when closed. The spindle of the roller is housed in reduced parts of the slots b and recessed at each end for engagement by the shaped ends of a spring e which is supported on a part i of the bracket between the slots. The roller may be made of resilient material protected at the ends by washers k. In a modification the limbs of the bracket are connected to one member of an angle plate and the base is connected to the other member by a bar on which the spring is supported. The roller in this modification engages the post &c. through an opening in the angle plate.
Patent GB-130491-A (GB)
Title: Improved Form of Portable Electric Lamp.
Inventor: UPWARD ALFRED RENE
IPC: F21V33/00
Filed: 1918-08-21
Abstract: 130,491. Upward, A. R. Aug. 21, 1918. Combined with illuminating- appliances.-A walking-stick or umbrella is fitted with a lamp m near the bottom end of the stick, the battery g and switch h being situated in the handle. A second manuallyoperated switch may be provided near the middle of the stick, and a mercury switch m<1> may be included in the circuit so that the lamp can be illuminated only in certain positions of the stick. The stick may be made of metal and form a part of the circuit, or it may be of millboard or similar fibrous substance impregnated with shellac and hardened under -pressure. In the latter construction the stick is formed in two parts a<1>, a<2>, connected by a detachable metal sleeve m<4> having an aperture m<3>. An existing stick may be fitted with a lamp by removing the bottom end of the stick and substituting a hollow sheath containing the lamp bulb, 'battery, and mercury switch.
Patent GB-1202625-A (GB)
Title: Vehicle door structure
IPC: B60J5/04
Filed: 1968-03-21
Abstract: 1,202,625. Vehicle doors. FORD MOTOR CO. Ltd. 21 March, 1968 [24 March, 1967], No. 13612/68. Heading B7J. A vehicle door structure 12 adapted to close a vehicle body aperture defined by body panels 18-21 comprises an outer panel 13 connected in spaced relationship to flanges 15 and 16 of an inner panel 14, the flanges 15 and 16 being formed with stepped recesses 22 and 23 which are occupied by flanges 33 and 34 of a trim panel 3] adjustably connected to inner panel 14 by bolts 35 such that adjustment of the trim panel relative to the inner panel may provide optimum sealing of the door structure in the body aperture by weatherstrip 24. The bolts 35 pass through the trim panel and are fixed thereto by a collar 37, said bolts having a threaded end 36 which engages a nut 39 fixed to inner panel 14. Rotation of the bolt by a tool adapted to be inserted into an end aperture will cause the trim panel to move in or out with respect to panel 14.
Patent GB-701169-A (GB)
Title: Improvements in or relating to maize and the like shellers
IPC: B02B3/08
Filed: 1951-06-08
Abstract: 701,169. Thrashing machines; hulling grain, seeds. COLLINS & SON (PTY), Ltd., A. June 8, 1951 [June 15, 1950], No. 13639/51. Class 58 A maize sheller for shelling maize and other crops such as sunflower heads, beans, kaffir; corn, in which the grain or seed is enclosed in a shell or seed-bearing receptacle, comprises a rotatable horizontally disposed sheller drum 3, a co-acting fixed casing 2 containing the drum and having a perforated bottom 2b for discharge of shell grain therethrough, and an exhauster and blower fan 7 associated close to a spent cob and trash discharge end 6 of the sheller casing for direct reception therein of spent cobs and trash from the drum, the fan being arranged so as to effect discharge of the spent cobs, trash and dust by a combined blowing, projecting and slinging action to a dumping position removed from the vicinity of the sheller and to create in addition a draught within and below the sheller casing 2 for evacuation of fine particles and dust by creating a draught through the grain escaping through the perforations 5 of the casing thereby to enable the grain cleaned by the winnowing action provided by the draught to be collected free from dust and fine particles. As shown the casing 2 formed into two horizontally parted portions 2a, 2b surrounds the toothed drum 3 mounted on a shaft 4 on which also is mounted the rotor of the fan 7 comprising radial blades 7a operating in the usual volute of its casing 7 and supported on one side of a rotor disc 7b on the end 4a of the shaft so that the cobs fed from the end 6 of the casing 2 pass directly through apertures 7f which may be valve controlled into the central part of the fan casing and the path of the fan blades for projection from outlet 7c which may connect with a discharge pipe, an aperture 7g which may be valve controlled on the lower part of the fan casing opening into the grain delivery hopper 8 which collects the grain falling from the perforations 5, the generated air current at the same time causing the dust and trash with it to be extracted from the interior of the apparatus and also causes a winnowing draught effect on the falling shelled grain in the hopper 8. Grain leaving the discharge hopper 8 via a spout 8a falls on to an inclined chute 9 and gravitates into the inlet of a further extractor fan 10 for delivery through a conduit 11 for bagging at any convenient point.
Patent GB-1028620-A (GB)
Title: Process for the production of self-extinguishing synthetic resins
Inventor: BREDERECK HELMUT
IPC: C08G63/60
Filed: 1965-03-31
Abstract: Self-extinguishing synthetic resins are obtained by polymerizing at least one monomeric polymerizable compound, if desired in the presence of at least one polymer of these compounds and/or of at least unsaturated polyester, in the presence of at least one polymerization-initiating agent and in the presence of a phosphorus compound <FORM:1028620/C3/1> wherein R is a hydrogen atom or methyl group and R1 is an allyl group or an alkyl group with 1 to 4 carbon atoms which may be substituted by chlorine or bromine.  In the examples: (1) methyl methacrylate is polymerized with 1 - methacrylylethane - 1,1-bis-(phosphonic acid dimethyl ester) as phosphorus compound; (2) styrene is polymerized with the phosphorus compound of Example (1) and (3) an unsaturated polyester is polymerized with styrene and the phosphorus compound of Example (1).
Patent GB-1154886-A (GB)
Title: Improvements in or relating to Telecommunication Cables
Inventor: FORBER CHARLES DAVID
IPC: H01B7/285
Filed: 1967-03-23
Abstract: 1,154,886. Cable sheathing. BRITISH INSULATED CALLENDER'S CABLES Ltd. 22 March, 1968 [23 March, 1967], No. 13660/67. Heading H1A. In a cable similar to that of Specification 995,582, which has a plurality of conductors, each with a cellular plastics dielectric, enclosed in a waterproof sheath and having the interstices between their conductors filled with a water-impermeable medium, a separating layer impervious to such medium is arranged between the core and the sheath, the layer bonding to the sheath at or below the extrusion temperature of the sheath. Preferably, the separating layer is a tape of a laminate consisting of a layer of cellulose acetate carrying on one face a coating of polyvinyl diethylene copolymer with coatings of low density polyethylene being placed on the other or both faces of the laminated tape. Reference has been directed by the Comptroller to Specification 995,582.