baber/WOPTO huggingface dataset:
Patent GB-560041-A (GB)
Title: A method of and means for attaining constant yield point in the strain hardening of steel by twisting
IPC: C21D7/10
Filed: 1942-09-14
Abstract: 560,041. Hardening steel by twisting. SQUARE GRIP REINFORCEMENT CO. (LONDON), Ltd., and GLEGG, G. L. Sept. 14, 1942, No. 12923. [Class 83 (iv)] To obtain a constant yield point in bars for reinforcing concrete &c., hardened by twisting, the torque reaction, during twisting is used to determine the extent of twist. When this reaction reaches a desired value it may automatically cut out the motor, cause a clutch arranged between motor and work to slip, or otherwise cut off power transmission. For instance the normally stationary end of the bar 10 may be secured to a lever 11 and twist thereof be resisted by a spring 12 or the like. When the other end is twisted by motor-driven gearing until the requisite torque is reached movement of the lever 11 operates a switch S in the circuit of the electric motor drive or of an electrical transmission device interposed between any power unit and the work. In modifications the current operating the prime motor or the motor of an electric transmission device is arranged to open said switch S at a given amperage or this is indicated by an ammeter and the attendant opens the switch. In other modifications a power unit is chosen having a load/speed characteristic such that, when operated for a' definite period to twist the bar, speed reduction suffered through torque reaction results in the bar being twisted only the desired amount to attain the desired yield point. An electric motor for this purpose is a slip-ring alternating current motor having a selected external resistance in the rotor circuit. In another modification the rod is twisted by gearing 17, Fig. 2, and a fluid pressure motor 15 which is driven by fluid in a reservoir 20 which is kept at a constant pressure by a pump 19 and adjustable relief valve 21 so that when the resistance to twisting reaches the desired value the pressure in the reservoir 20 has risen to the. point at which it opens the valve 21.
Patent GB-1145605-A (GB)
Title: Machine for cleaning railbed ballast
IPC: E01B27/10
Filed: 1967-03-20
Abstract: 1,145,605. Rail bed ballast-cleaning machine. V. SEIDL. 20 March, 1967 [4 April, 1966], No. 12942/67. Heading E1F. In a rail bed ballast-cleaning machine cleaned ballast on being discharged from a rotatable, screening drum 1 is delivered back to a rail bed by a belt conveyer oscillating above the bed after the cleaned ballast has been transferred from the drum up on to the conveyer by a vaned rotor functioning within a cylindrical shell 11 mounted at the discharge end of the drum to be co-axial of the drum. The vanes 17 of the rotor are caused to circulate about a stationary central core 10 of the shell and are, as they approach a discharge opening in the shell, pivoted by cam means about axes parallel to the axis of rotation of the rotor to eject the ballast pushed by the blades around the core through the opening in the shell onto the conveyer.
Patent GB-295444-A (GB)
Title: Improvements in or relating to high resistances and processes for the manufacture thereof
IPC: H01C17/07
Filed: 1927-05-13
Abstract: 295,444. Parkin, T. D. May 13, 1927. Moulding electric resistances.-A film of conducting material is affixed by printing or a similar pressure process to the surface of a moulded piece of conductive material. In one form the mould comprises a base plate, Fig. 2, and a slotted plate, Fig. 4, for forming a number of strip shaped resistance units. The slotted plate is placed on the base plate and the slots filled with powdered mouldable insulating material. For this purpose an ejecting-device consisting of a cylinder and plunger may be employed. A top plate is then covered with a layer of conducting material and pressed down on the mould and the material compacted. Pins M, M1 - - U, U1, projecting upwards from the base plate form holes in the strips by which terminals can be attached by means of screws. The value of the resistance is adjusted by cutting away portions of the film. By covering the bottom plate with conducting material both sides of the unit can be coated. To make a rheostat a mould is formed of three pieces as shown in Figs. 14, 17 and 19 to make a piece of the form shown in Figs. 21 and 22. The surface WV of the piece shown in Fig. 19 is covered with conducting material so as to produce a conducting coating on the surface RV of the moulded piece. Contact is made with this conducting coating by means of a metallic disc MV, Fig. 23, threaded on a rotary stem DV, but kept from rotating by a pin EV. The disc MV is tilted against the action of a spring QV so as to press against the metallized surface RV by means of a peg NV projecting from a disc AV rotating with the spindle DV. The moulded portions may be made of a phenol-aldehyde product. The conducting material may be graphite, preferably of the kind known as "Dag," suspended in a liquid which is brushed or sprayed on to the pressure plate, which is of metal. In coating the piece shown in Fig. 19 it may be rotated so as to give a greater thickness at the outer edge. To give a very high resistance the graphite may be suspended in an insulating varnish or mixed with colloidal clay. Metallic films of silver or platinum deposited in a known way on the pressure plate may be employed. In this case the pressure plate should be faced with silica, glass, or, preferably, mica.
Patent GB-474782-A (GB)
Title: Improvements in and relating to cutting, or cutting and embossing, machines for biscuit doughs and the like
IPC: A21C11/10
Filed: 1936-05-07
Abstract: 474,782. Cutting and embossing biscuits &c. BAKER, G. R., PATERSON, J. C., and BAKER PERKINS, Ltd. May 7, 1936, No. 12962. [Class 87 (ii)] A machine for cutting or cutting and embossing biscuit dough &c., in which the reciprocating cutters are also rocked longitudinally with the continuously moving dough sheet, has the frame carrying the cutter bar pivoted below the cutting table on the side of the driving means remote from the table. The table 10, over which runs a belt 11, is resiliently mounted on the cross-bar 15 of an H-frame which is pivoted at 19 near the floor level. The side members 12 of the frame are of channel shape, facing inwards to provide a housing for the driving mechanism and a guide for the cutter bar. The main drive shaft 20 is mounted above the pivot 19 and carries eccentrics 21 which actuate the cutter bar 13 through rods 22. Cams 23 are also provided on the shaft 20 to actuate the embosser bar 14 through rollers 24 and rods 42. The bar 14 is resiliently supported on the cutter bar 13 by springs 30. The bar 13 is adjustably connected to the rods 22 by eccentrics 33 which may be rotated by a hand wheel 38 to adjust the height of the bar. The bar 14 is adjustably connected in a similar manner to the rods 42. The H-frame is rocked by a crank disc 46 on the shaft 20 which is connected by links 50, 49, 47 to the frame. The connection between the links 49, 47 is adjustable to vary the throw. In a modification, Fig. 8, as applied to a cutting machine the channelled side members 51 of the frame face outwardly and are slotted at the top 56 to provide guides for the cutter bar 57 which is reciprocated by eccentrics 68 through rods 69. A scrap bar 60 from which a scrap plate is suspended by rods 61 is mounted on pins 59 on the frame and is resiliently coupled to the cutter bar by bolts 62 and springs 64. The frame is rocked in the manner previously described from one of the eccentrics 68.
Patent GB-1528614-A (GB)
Title: Desks
IPC: A47B17/00
Filed: 1976-03-26
Abstract: 1528614 Desks H CAPLAN (FURNITURE) Ltd 26 March 1976 [27 March 1975] 12987/75 Heading A4H A "knock down" desk comprises a top 1, end support members 2, 3 secured to the top, and a pedestal 18 providing drawer or suspension filing space pendant from top 1, the top 1 and pedestal 18 each having a pair of parallel elongate brackets 7 or 8 and 19 that co-operate by sliding engagement. The end support members 2, 3 are connected by a transverse bracing member 4. The pedestal is locked in its operative position by spring clips 35.
Patent GB-646008-A (GB)
Title: Improvements in or relating to apparatus for incorporating air or other gas into soap
IPC: C11D17/02
Filed: 1946-04-30
Abstract: An apparatus for incorporating air or other gas into soap comprises a plodder barrel, means to inject air or other gas into the soap and incorporate it therein in finely-divided state at the exit end of the plodder barrel and to form the air or gas-containing soap into small particles, and means to consolidate the particles under pressure. The apparatus is particularly adapted for the treatment of milled soap to produce air- or gas-containing floating milled soap.  Figs. 1-4 show a three-stage cooled plodder, the soap being taken in turn through plodder barrels 2, 21 and 32, and air being injected into the soap as it leaves barrels 2 and 21.  The soap is progressed through the barrels by rotating worms 1, 11 and 1a, the soap entering barrel 2 at 3, barrel 21 at 30 and barrel 32 at 31.  A foraminous plate 22 with numerous small holes 23 therethrough and a thick pressure plate 25 having conically shaped openings 26 therethrough, both stationary, are anchored in contact with each other at the exit end of barrel 2. Anchored to worm 1 and rotating therewith are comminuting head 16 and cutting blades 27.  Head 16 is provided with radial blades 20 and 21 which force the soap through holes 23 and into openings 26 where the conical shape of the latter causes compaction of the soap.  Soap extruded from openings 26 is cut off in pellet form by blades 27. Compressed air from storage 9 is supplied through lines 10 both to the exit of barrel 2 and to a longitudinal central opening 14 in worm 1.  Radial channels 18 communicating with the central opening 14 are provided in head 16 and these channels also communicate with axially extending branches 19.  Thus, at the same time as soap is forced through holes 23, air entering through branches 19 is pocketed as small bubbles in the soap.  The exit end of barrel 21 is similarly arranged for injecting air into the soap while the exit end of barrel 32 is provided with an orifice plate 34 so that the soap is extruded with the desired cross-section. Cooling jackets surround barrels 2, 21 and 32 while a heater 35 is provided immediately before orifice <PICT:0646008/III/1> <PICT:0646008/III/2> <PICT:0646008/III/3> <PICT:0646008/III/4> plate 34.  Specification 646,060 is referred to. The Specification as open to inspection under Sect. 91 refers to a device for milling soap which comprises a plodder and means to inject air into the soap at the exit end of said plodder.  It also refers to the subject-matter of Specification 646,060 (both as accepted and as open to inspection under Sect. 91).  This subject-matter does not appear in the Specification as accepted.
Patent GB-309325-A (GB)
Title: Improvements in collapsible portable shelters or structures
IPC: E04H15/00
Filed: 1928-05-03
Abstract: 309,325. Smith & Co. (London, E.), Ltd., J., and Smith, W. E. May 3, 1928. Portable huts; tent frames. - Portable shelters of the kind formed of semi-arches joined together to form complete arches, which are also joined by longitudinal bars, have spigot and socket joints f, a for the ends of the half-arches with surrounding T-junction pieces d to receive and support the longitudinal connecting bars c on lugs e. The spigots and tubes may also be provided with apertures i to receive projections g, and the longitudinal bars may also be joined by pins j on one entering corresponding apertures in the adjacent bar. The upright portions b of the arch tubes are also provided with lateral projections l which may have heads to enter bayonet slots in adjacent tubes and be locked therein by means of straps. These projections also prevent the rubbing of the canvas on the tubes in the event of the frames being dragged along the ground. The opposite vertical members of the arches are also joined by a connector tube n provided with hooked extremities o for engaging the longitudinal connectors c at their junctions with the arch tubes.
Patent GB-419294-A (GB)
Title: Improvements in or relating to hydraulic couplings
IPC: F16D31/02
Filed: 1933-05-04
Abstract: 419,294. Hydraulic transmission of power. SMALL, H. P., 39, Sunningfields Road, Hendon, London. May 4, 1933, No. 13071. [Class 69 (ii).] In hydraulic transmission mechanism, a flywheel 10 secured to the crank shaft 12 operates within a casing 13 on the driven shaft 14. A number of radial cylinders 21 containing plungers 22 are provided within the flywheel and communicate by means of one-way valves 24 with a chamber 19 formed by a lateral boss 17 on the flywheel. An annular slide-valve 27 is movable axially to control the connection between exhaust ports 26 and the chamber 19. Each plunger carries at its outer end an antifriction roller 30 which runs on the inner face of a cam-member 16 carried by the casing 13. A depending rim 34 on the member 16 serves as a guide for the plungers, which are preferably pointed and provided with a recess 36. Reference has been directed by the Comptroller to Specifications 2607/90, [Class 80], 14300/14, and 172,518, [both in Class 69 (ii)].
Patent GB-198543-A (GB)
Title: Improvements in or relating to the transmission gearing of automobiles
IPC: F16H37/08
Filed: 1922-05-09
Abstract: 198,543. Marchand, H. May 9, 1922. Variable-speed toothed gearing.- Comprises double reduction gearing between the driving-shaft 1 and a vehicle axle 2, in which an internally-toothed wheel 3 driving the differential gear is driven from the shaft through either of two trains comprising worms 4, 5, worm-wheels 8, 9, and spur pinions 6, 7 integral with their respective wormwheels. The worms 4, 5 are clutched one at a time to the shaft 1 bv a sliding double clutch 12.
Patent GB-774944-A (GB)
Title: Carbon black pellets for ink compounds and process of manufacture
IPC: C09C1/58
Filed: 1955-05-06
Abstract: Pellets are produced from furnace carbon black in which is incorporated 2-15 per cent of a non-aqueous, non-polymerizable, non-volatile organic liquid having a mid-boiling point of at least ca. 350 DEG F.  The black is gently stirred while the organic liquid is sprayed, preferably in atomized form over its surface.  The liquid may be incorporated in the black before or in the initial stage of pelleting and may be preheated to 120-200 DEG F.  It may be mineral oil, or modified mineral oil, of the type used as oil vehicle and may contain additives such as resin, asphalt or gilsonite.  Specification 718,771 is referred to.
Patent GB-131506-A (GB)
IPC: B65B11/22
Abstract: 131,506. Ney, A. F. Oct. 22, 1918. Sheet-separators. - In a packaging-machine, wrappers are transferred from a box 26 to a wrapping station X by an adhesive picker 29 which can slide vertically in a horizontally movable carriage 35 and is provided at the bottom with studs or projections 30, 31 for receiving adhesive. The picker is secured to rods 32 which are guided in the carriage and are connected by a bar 36, provided with a spring-cushioned plunger 39 adapted to be depressed by an arm 40. The picker is raised by means of springs on the rods 32. Adhesive, contained in a vessel 42, is transferred by a driven roller 43 to a roller 47 which is mounted on a cam-lever 48 and can gear with the roller 43. When the picker is returning to the box 26, the roller 47 rises and transfers adhesive to the projections 30, 31. The wrapper transferred tb the station X by the picker is retained by means of a gripping-lever 88.
Patent GB-700712-A (GB)
Title: Improvement in and relating to pressure cookers
IPC: A47J27/212
Filed: 1951-06-04
Abstract: 700,712. Pressure cooker covers. HAUTIER, C. June 4, 1951 [June 5, 1950; Feb. 20,1951], No. 13198/51. Class 123(1) A cover B is secured to a pressure cooker A by the engagement of, say, four internally projecting lugs such as 5, 6, 8 on the cover with a corresponding number of helical threads 1, 2, 3, 4 around the upper part of the cooker, fluid tightness being secured by a rubber &c. packing ring D projecting from a recess C within said cover. Preferably the beginning of each thread overlaps the end of the adjacent one. The cooker may be provided with a member G having a tooth or cam adapted to engage one of several notches F on the flange of the cover when the latter is in position, rotation of said member effecting movement of the cover in the opening direction sufficient to permit release of the pressure within the cooker prior to removal of the cover. The cover is fitted with a hand grip E and associated pressure and temperature indicator H, pressure alarm I and an automatic escape and safety valve J. In a modification the cooker has opposed handles, one of which is adapted to be rotatable and is formed with the pressure-releasing cam G.
Patent GB-179945-A (GB)
Title: Improvements relating to railway signalling
IPC: B61L3/04
Filed: 1922-05-10
Abstract: 179,945. Saxby & Farmer (India), Ltd., and Roe, N. P. May 12, 1921, [Convention date]. Track apparatus actuating signals on trains.-A pendulum contact-breaker for signal circuits is attached by a bracket to a locomotive so that the contact-breaker can be placed at varying heights and distances from the rails or can be completely reversed. The metal pendulum 11 is carried by a hollow shaft 19 oscillating on the spindle 12 and carries at its lower end the rod 13 to engage brushes of the type decribed in Specification 155,516. The pendulum also carries a cam 14, Fig. 6, which in its normal position bridges the spring contacts 15, 16 but breaks the circuit when the pendulum moves forwards or backwards. The pendulum is supported in a frame formed by two angle-irons 20, 21 bolted together and provided with slots 24, 25 by which it can be attached to either of the bars 29, 30 on the bracket 28, Fig. 8, bolted to the locomotive. The bracket 28 may be built up of angle-irons and plates, or may be made in one piece with bent-up portions to which the bars 29, 30 are secured. The pendulum frame may be reversed in position on the bracket so as to be carried away from the track during shunting operations. The frame is held in position on the bracket by a spring catch 33. Specifications 155,517, 155,518, and 155,519 are referred to.
Patent GB-492063-A (GB)
Title: Improvements in or relating to apparatus for heating or boiling water
IPC: F24H1/12
Filed: 1937-05-10
Abstract: 492,063. Geysers. MASON, J. F. May 10, 1937, No. 13245. [Class 64 (i)] A boiler has a number of annular water-heating troughs 14 assembled around a vertical flue 11 and provided with outlets 12 which are oppositely arranged in successive troughs in order to direct the water in a horizontal as well as a vertical course in its passage from an upper inlet 10 to a bottom outlet 19.
Patent GB-437948-A (GB)
Title: Improvements relating to electric secondary batteries
IPC: H01M4/64
Filed: 1934-05-02
Abstract: 437,948. Batteries. HAZLEHURST, A. N., Four Winds, Iver Heath, Buckinghamshire. May 2, 1934, No. 13287. [Class 53] An accumulator plate 1 of lead or lead alloy is covered on both sides with an integral casting 2 of ebonite or other unattackable material which is provided with openings 4 which are larger than the openings in the lead plate. The openings 4 are formed during the casting of the ebonite by steel blocks which are subsequently removed. The plate 1 is provided with small holes 6 through which the ebonite flows to secure it to the plate 1. The edges of the openings in the lead plate 1 may be provided with teeth, as shown in Fig. 3, for holding the active material securely. Fig. 5 shows a modification in which the edges of the openings in the ebonite covering are provided with tongues 12 which pass through the openings in the lead plate and hold together the parts of the covering on the two sides of the plate. The plate may be surrounded with a lead strip 13 connected to the lug 11.
Patent GB-883585-A (GB)
Title: Improvements in or relating to the thermo-forming of thermoplastic materials
Inventor: SMITH ALEXANDER FALCONER
IPC: B29C51/10
Filed: 1960-04-14
Abstract: Thermoplastic covers are formed on rigid articles by a thermoforming process comprising disposing the article in an evacuable enclosure partly defined by a sheet of thermoplastic material, heat-softening the thermoplastic, moving the article relative to the enclosure to cause the article to become surrounded by the heat-softened thermoplastic, evacuating the enclosure to draw the thermoplastic into conformity with the article, coding the thus covered article to harden the thermoplastic and removing any excess from the article. Suitable thermoplastic materials include non-inflammable cellulose esters such as cellulose acetate and cellulose butyrate, polyethylene and polypropylene, polyvinyl chloride, polymethyl methacrylate and polystyrene.  As shown, Fig. 4, there is provided an evacuable chamber 24 formed with an integral flange 27 provided with grooves 28 in its upper surface for the reception of sealing rings 29. The <PICT:0883585/III/1> <PICT:0883585/III/2> <PICT:0883585/III/3> chamber is provided with a compressed air inlet 31 and a vacuum take-off pipe 32.  A bushing 34 is provided centrally of the base and receives a ram 35 formed at its lower end with a piston 36 p  moving in a cylindrical pot 37 secured to the base of the chamber. The pot is provided with compressed air inlets 41 above and below the piston. The ram 35 carries on its upper end a rigid horizontal platform 42 which is in its turn provided with an accurately centred well for receiving the base 46 of a mandrel 45, which supports the bobbin or other article to be coated.  Both the cylindrical portion 48 and the base 46 of the mandrel are grooved to allow evacuation of air from inside the bobbin.  The chamber 24 is closed by a plate 30 having a hole 51 (of the same cross-section as that of the article to be coated) accurately disposed above the mandrel.  A sealing gasket 52 is placed on the upper surface of plate 30 and the sheet of thermoplastic material 56 placed thereon, and clamped in position by clamping frame 54. Above the clamping frame there is mounted a movable heater 57 running on guide rails 58.  A sealing member 67 for sealing and shaping the thermoplastic is also provided above the heater.  In operation the piston 36 is raised and a waisted bobbin 49, which has been heated approximately to the softening point of the thermoplastic to be used, placed on platform 42.  The platform is lowered, a sheet of polystyrene clamped in position and the sheet heated.  When the sheet is soft enough, the heater is removed and the piston raised until the whole of the article to be covered is above the clamping frame 54 (see Fig. 6).  The sealing member 67 is lowered until it fits into the top of the bobbin and air is exhausted from chamber 24 to cause the stretched sheet to conform to the bobbin (Fig. 7).  The sealing member is raised, the ram lowered and cooling air directed on to the bobbin, which is removed when cool and suitably trimmed.