baber/WOPTO huggingface dataset:
Patent GB-220840-A (GB)
Title: Improvements in and relating to alternating current arc welding apparatus
IPC: H01F29/12
Filed: 1923-10-10
Abstract: 220,840. Schmidt, F. Oct. 10, 1923. Transformers. - The primary and secondary coils of a transformer supplying current to arc welding apparatus are mounted on the same limb of the core, and are adapted to be moved positively towards or away from one another for the purpose of varying the strength of the current supplied to the electrode. In the single-phase core type transformer shown in Fig. 1, the primary coil 2 is fixed, while the secondary coil 3 is adjustably mounted on a screw-threaded spindle 7 provided with a hand-wheel 8. Both limbs of the core may carry windings, and the secondary windings may be separately adjustable for supplying two separate welding places with currents of different strength. In applying the invention to three-phase transformers, the secondary windings 19 - - 21 may be simultaneously adjustable and connected to electrodes 27 - - 29 mounted in a common handle 30, as shown in Fig. 5, or the secondary windings may be connected to independent electrodes and adjusted separately. The transformer may be mounted in a sheet-metal casing 43, Fig. 7, provided with ventilating slots, the casing being supported on wheels 36.
Patent GB-158950-A (GB)
Title: Improvements in boot protectors
IPC: A43B21/47
Filed: 1919-10-16
Abstract: 158,950. Lulham, T. R. Oct. 16, 1919. Protectors, construction of. - Protectors b, Fig. 3, of resilient material have undercut recesses c into which plugs e also of resilient material but of larger dimensions are inserted in the known manner so that the pad takes up the shape shown before it is applied to a shoe. After application, the base of the protector is flat but the stresses ensure that the edges are held close to the heel. In a modification, Fig. 5, for a toe-piece, insertions h<1>, i' may be used together or separately. In another modification, Fig. 9, for a revoluble heel the edges of a recess j, adapted to receive a plug k, are undercut at j<1> only.
Patent GB-796865-A (GB)
Title: Mixing valve device for cold water and hot water
IPC: F16K11/044
Filed: 1953-09-15
Abstract: 796,865. Valves. COOPER, F. C. Dec. 15, 1954 [Sept. 15, 1953], No. 25431/53. Class 135. A hot and cold water mixing valve comprises a mixing chamber 17 to which the hot and cold water admitted through inlets 15, 13 respectively is fed via a pressure-responsive piston valve assembly, the mixing chamber containing an axially movable sleeve 30 which controls the ports by which the hot and cold water enter the chamber 17 whilst communication of the chamber 17 with the outlet 35 is controlled by a closure member 33 which is adjustable simultaneously with the sleeve 30 by a hand lever 32 carried by a screwed stem 31. The piston valve assembly consists of a central piston 20 with extensions 21, 22 on which are mounted plungers 23, 24, the plunger 23 being loosely mounted on the extension 21 and the plunger 24 rigidly fixed to the extension 22. The inlet 15 communicates with the mixing chamber 17 through an opening 16a and a bore 19 whilst the inlet 13 communicates with the mixing chamber 25. On operation of the lever 32 the valve member 33 allows cold water to flow from the mixing chamber to the outlet 35 owing to the fact that the cold water inlet to the mixing chamber (not shown) lies to the left of the sleeve 30, as seen in Fig. 1. Further operation of the lever 32 opens the hot water passage to the chamber 17 and at the same time closes the cold water passage to a corresponding extent so as to regulate the temperature of the mixture. As soon as the valve member 33 is opened the pressure of water in the bore 25 to the right of the piston 20 falls and the hot water pressure moves the piston to the right, as seen in Fig. 2, to permit the passage of cold water. The piston 20 then takes up such a position that the plungers 23, 24 control the ports 29, 15 to maintain substantial equality of hot and cold water pressures. Should the cold water pressure fail the pressure of hot water causes the piston 20 to be moved to the right to cause the plunger 24 to seat at 16a and seal off the hot water supply from the outlet. On closure of the mixing valve the cold water, which can seep past a clearance around the plunger 23 and whose pressure exceeds that of the hot water, urges the piston valve assembly to the left (Fig. 2) to seat the end 20a of the piston 20 at 16a. The hot water passage 19 is provided with a regulating screw 36. Specification 757,985 is referred to.
Patent GB-502398-A (GB)
Title: Improved means for removing flashings from moulded rubber and like articles
IPC: B29C37/02
Filed: 1938-08-31
Abstract: 502,398. Trimming moulded articles. COHEN, R. P. Aug. 31, 1938, No. 25481. [Class 87 (ii)] The flashings r are removed from moulded rubber and like articles such as hand grips by means of a device having a fixed die a, a movable die b having rods j passing through holes in the flange k of a press head g, and a punch n carried by the head.' Apertures c corresponding to the body of the article are formed in the dies. In use, the article is supported by its flashings on the lower die and the press head is lowered. The upper die, normally supported by nuts m on the rods j, is forced by springs h to grip the flashing. The punch n then forces the articles between the dies. For removing the circular flashing r<1>, fingers w are moved inwardly between parts s hollowed out of the dies, a mandrel t is then inserted, and the fingers are withdrawn to the position shown in full lines. When the dies are closed, the circular flashing r<1> is gripped between the mandrel and the parts s of the dies, and is removed along. with the lateral flashing r.
Patent GB-301989-A (GB)
Title: Improvements in loud speaking telephones
IPC: H04R13/00
Filed: 1927-09-27
Abstract: 301,989. Sterling Telephone & Electric Co., Ltd., Blades, N., and Beard, J. R. Sept. 27, 1927. Loud-speakers; magnetic instruments.-A loud speaker comprises a magnetic system carried by a frame 4 which is a. sliding fit in a one-piece casing 1 closed at one end save for a small opening 3 for the attachment of a horn. The diaphragm 15 as shown is clamped by the frame and casing with the interposition of rubber, cork or like washers. The magnetic system 10 is mounted on a tongue 11 carried by a spring 12 and is adjustable by means of the pointed screw 14. Two of the screws clamping the pole-piece laminations may be insulated and extended to form the terminals 21 of the winding.
Patent GB-1062436-A (GB)
Title: Improvements in or relating to the packaging of products for dispensing machines
IPC: B65D85/816
Filed: 1964-06-19
Abstract: 1,062,436. Dispensing articles. COMPACT INDUSTRIES Inc. June 19, 1964 [July 8, 1963], No. 25525/64. Heading A4T. [Also in Division B8] A substance 18 (Fig. 7) such as instant coffee is packed between adjacent cups of a stack (11) (Fig. 1 not shown) which are used in automatic vending machines. In the method described the stack is made by putting a measure of the substance (18) (Fig. 3 not shown) on an inverted cup (21), and then placing a second cup (10) over it, and so on. The bottom cup (21) may be a dummy cup i.e. it has no flange (17) and so will not register in the machine. The completed stack (Fig. 1) may be placed in a transparent bag (25) which is provided with a tear strip (22) secured to a false bottom (25) in the bottom cup, and the ends of the bag may be sealed by a clip (20) or a rubber band. The air may be evacuated from the bag to preserve the coffee or the like and the bag may be heat shrunk about the stack so as to retain endwise pressure on the cups.
Patent GB-966713-A (GB)
Title: Improvements in or relating to devices for measuring forces causing distortion in a rotary shaft
IPC: G01L3/10
Filed: 1961-07-14
Abstract: 966,713. Measuring electrically. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 14, 1961 [July 18, 1960], No. 25604/61. Heading G1N. A device for measuring forces causing distortion in a rotary shaft 1, comprises a pair of collars 2, 3 rigidly attached to the shaft, one or more rods 4, 5, parallel to the shaft and secured at one end in one collar 3, and connected at the other end to a strain sensitive element 6 lying at right angles to the axis of the shaft and carried by the other collar 2, and strain gauges attached to element 6 for measuring the stresses therein. Element 6 preferably consists of a hollow tube on which four strain gauges 8 are mounted in diametric pairs. The gauges form the arms of a Wheatstone bridge circuit and it is shown that forces other than the axial force P can be eliminated from the electrical output by suitable connection of the strain gauges. As shown, a second strain sensitive element 7 is connected to rod 5 and carries strain gauges connected in a second bridge circuit connected in series with the first. The bridge outputs are taken off through slip rings. A further bridge circuit is provided to measure torque.
Patent GB-425093-A (GB)
Title: Improvements in and relating to spools for plaster
IPC: A61F15/00
Filed: 1934-09-06
Abstract: 425,093. Bobbins &c. VORWERK, W., 33, Adolf-Vorwerkstrasse, Barmen, Wuppertal, Germany. Sept. 6, 1934, No. 25667. Convention date, Sept. 27, 1933. [Class 120 (iii)] A spool for plaster has end discs a of polygonal shape, preferably hexagonal or octagonal. The end discs are preferably of metal and have their corners rounded and their edges turned over. The core may be of wood or metal, and it may be provided over its whole length or at its ends only with flat portions c, or with projections, which engage in suitably shaped openings in the end discs to prevent relative rotation. The sides of the spool discs may be straight, or they may curve inwardly or have projections.
Patent GB-1508851-A (GB)
Title: Process and apparatus for the extrusion of plastics material
IPC: B29C48/07
Filed: 1975-06-17
Abstract: 1508851 Heating and distributing material to dies MONTEDISON SpA 17 June 1975 [17 June 1974] 25747/75 Heading B5A Thermoplastics material, which may comprise PVC, or may be foamable, is delivered from an annular extrusion head outlet to the inlet of a laterally elongate extrusion passage of a die 10, via a plurality of pipes 7 connected at spaced intervals around the outlet and extending through a heating means 11 to discharge into the inlet at laterally spaced apart locations. The pipes 7 may be employed to control the material pressure or temperature, or to obtain the same or different flow rates of the material to different parts of the inlet, and may extend rectilinearly and be of uniform cross-section, or may be tapered and of different lengths and/or diameters to obtain the same pressures at the outlets of the pipes. The extrusion passage may define an extrudate of a section which is curved, or branched or, as in the embodiment, may comprise a flat sheet. In the embodiment, the heating means comprises a jacket 11 of circulating heating fluid and the pipes 7 are of equal length and section and discharge across the width of a flat sheet extrusion passage of the die 10. The pipes 7 may be detachably connected, individually or in groups.
Patent GB-998461-A (GB)
Title: A flow apparatus for separating granular particles
IPC: B07B7/083
Filed: 1961-07-18
Abstract: 998,461. Centrifugal separators; beater mills. ALPINE A.G. MASCHINENFABRIK UND EISENGIESSEREI. July 18, 1961 [Aug. 6, 1960], No. 25935/61. Headings B2A and B2P. Granular material is separated into particles of different sizes by means of an apparatus comprising a centrifugal-type separator wheel 1, Fig. 6, through which a fluid carrier medium flows along substantially radially directed separating channels 2 of cascade shape formation, Fig. 1, means being provided for feeding the carrier medium and the material to the circumference of the wheel. The channels 2 are separated from one another by thin zig-zag shaped metal strips 3 enclosed by cover plates 4, 5. The width and height of each channel respectively decreases and increases towards the wheel axis. Alternatively, the channels are machined in a solid wheel. The granular material 14 is fed at 7 on to the wheel 1 and is centrifuged towards the wall 9 of the apparatus housing. The carrier medium is sucked through the feed pipe 10 and, after being set into rotation by blades 12 on the underside of wheel 1, is guided by stationary blades 13, 16 to enter the wheel 1 at its outer periphery entraining the material 14. Inside the wheel the material is subjected to the opposite actions of centrifugal force and of the inwardly directed radial flow of the carrier medium. The coarse particles are flung out of the wheel and fall below into a channel 15 and the fine particles are carried away by the carrier medium through a channel 18 provided with a throttle 17. See Fig. 7, the separator wheel 1 is shown mounted in the upper part of a beater mill. Granular material fed with air at 21 is reduced in size by the beater mechanism 19 and enters the separator wheel. The fine particles are led away with the air through a pipe 22 whilst the coarse particles are returned in the beater for further reduction. Scavenging air is led in through a pipe 23 to prevent material escaping through the slits 24.
Patent GB-423056-A (GB)
Title: Improvements in and relating to bearings and their lubrication
IPC: F16N39/02
Filed: 1933-09-20
Abstract: 423,056. Bearings. ARMSTRONG SIDDELEY MOTORS, Ltd., and OLIVER, C. S., Parkside, Coventry. Sept. 20, 1933, No. 25963. [Classes 12 (i), 12 (ii), and 12 (iii)] A shaft or other rotary element 15, which is supported with exceedingly small clearance in a bush 16 is externally heated to a small extent, so that the rotation of the element may be started and means are provided to cool the element 15 internally or to cool the lubricant which is supplied under pressure between the element and the bush. The Figure shows the application of the invention to a machine tool, the sleeve or rotary element 15 being slidably keyed to a tool carrier 13 and driven by means of a pulley 28. The bush 16 is mounted in a head 17 having a space 18 in which heating liquid is circulated and has on its inner surface axial and circumferential lubricant receiving grooves 19, 20. The sleeve 15 is provided with grooves or with flats 21 having radiused trailing edges. Lubricant is supplied to a groove 23 and passes out again into a closed circuit at 24. The circuit may comprise a reservoir containing the bulk of the lubricant or a coiled copper pipe located near a cooling fan brought into operation manually or automatically in accordance with the temperature. The temperature of the heating fluid may be controlled by manual adjustment of the heating element or automatically by means of a thermostat. The sleeve 15 is oscillated to distribute the lubricant by means of a cam 30 moving a fork 29 engaging a collar 31.
Patent GB-590349-A (GB)
Title: Manufacture of "solid-forged" chain
IPC: B21L11/14
Filed: 1944-12-28
Abstract: 590,349. Making chains. ST. PIERRE, H. Dec. 28, 1944, 25984. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-In making forged plain or stud chain links, a joiner link blank with a pair of spaced opposed ends has the ends brought into juxtaposition, and then welded by supplying molten weld metal, the joint being then hot forged in a die conforming to the finished link. Links of this form may alternate with solid links in the chain. The links 10 may be formed with depressions 20, 18, either during or subsequent to manufacture, the depressions penetrating the entire thickness of the link or leaving a fin. The thickness of the link at 24 and at 26 is greater than the rest of the link. The ends are now separated by twisting hot on spaced'axes parallel to the minor axis, the solid links inserted, the ends returned and welding then effected by deposit of welding metal after preliminary heating of the joint parts. After welding the whole link is heated or only the central part, whereupon the link is placed in a die of dimensions equal to that of the solid links and rather larger than the split links and the joint is hammered to refine the weld metal and to forge the links to the same size as the solid links. The chain may then be heat treated. The ends may be bevelled as shown at 32, Fig. (i, instead of double-bevelled as in the first example.
Patent GB-264252-A (GB)
Title: Improvements relating to draw-out type electric switchgear
IPC: H02B11/18
Filed: 1925-10-17
Abstract: 264,252. Pailin, G., and Pailin, Ltd., F. Oct. 17, 1925. Sliding switch-carriage arrangements. - In draw-out electrical switchgear the control handle or equivalent for the circuit-breaker is mounted on the fixed switchgear structure and a mechanical coupling is provided between the handle and the circuit-breaker operating shaft which permits of operation of the circuit-breaker only when the movable switchgear member is moved into position. As shown in Fig. 1, in which the drawout member moves in a vertical direction, the operating handle a and shaft c are mounted in a casing b forming part of the fixed switchgear structure, the shaft c carrying a crank arm d to which is pivotally secured a member e the forked end f of which detachably engages a pin on the arm m carried by the circuit-breaker shaft. The member e comprises two telescoping parts with limited motion between them which are pressed apart by a spring k. This arrangement permits the fork f to remain in engagement with the pin on the arm during the throw-off movement of the circuit-breaker even if the circuit-breaker parts lag behind the actuating parts due to their greater inertia and also removes the need for accurate adjustment of the length of the member e. To prevent the circuit-breaker being lowered while in the closed position a projection q<1> on the tank q normally engages and raises a pivoted weighted lever r as shown in Fig. 6, this lever carrying an adjustable screw t which moves a tripping catch u immediately the lowering commences. The lever r at the same time engages a notch in the end of the crank arm d as shown in Fig. 5, to prevent any movement of the actuating mechanism until the circuit-breaker is again raised into position. The lever d carries an adjustable stop on which the arm e rests so that the fork f automatically re-engages the pin on the arm m as the circuit-breaker is moved into position. The arrangement described allows the trip coils and auxiliary contacts of the circuitbreaker to be located in the fixed switchgear structure.
Patent GB-297226-A (GB)
Title: Improvements relating to sliver coiling mechanism for use with drawing frames and like machines
IPC: B65H54/80
Filed: 1927-10-03
Abstract: 297,226. Mackie & Sons, Ltd., J., and Mackie, J. P. Oct 3, 1927. Coilers.-In an arrangement for rotating the sliver cans as used on drawing-frames, &c., in which the cans are rotated alternately in opposite directions, the plate 2, Fig. 2, carrying the can 1, is provided with a tappet 26, adapted, after the can has rotated a predetermined amount, to actuate a lever 24 and operate through a bell-crank lever 20 a reversing-device in the gear train driving the plate 2. The shaft 7, which drives the plate 2 through a worm 6 and gears 5, 3, 3<a>, is driven through a shaft 10 by a chain 8. A bracket 14 centred on the shaft 10 carries gears 12, 17, Fig. 3, and is swung into position to drive the shaft 7, either through the gear 12 or through the gears 12, 17, by the operation of the lever 24. The shaft 10 is carried by a bracket 27 and is provided with a projection 29, which is engaged by a lug 30 on a spring-controlled arm 31 to ensure full movement of the bracket to change the gears.
Patent GB-1508156-A (GB)
Title: Membrane separator
IPC: B01D61/08
Filed: 1975-06-19
Abstract: 1508156 Membrane separator DAICEL Ltd 19 June 1975 [20 June 1974] 26075/75 Heading B1X A reverse osmosis separating apparatus comprises a pressure vessel with an osmosis separator cartridge disposed within its chamber the cartridge comprising a centrally located collecting pipe 1 for discharging permeated liquid, a flexible envelope comprising a semipermeable membrane 5 defining an internal sealed compartment having a liner 3 therein, the compartment being in fluid-flow communication with the collecting pipe so that the flow of feed liquid in contact with the external surface of the membrane will cause liquid to permeate into the compartment and thence flow into the collecting pipe for discharge from the vessel, a flexible corrugated spacer 7 extending along the envelope and having alternating ridges and grooves defining channels 10 that extend parallel to the collecting pipe, the spacer having inclined wall portions extending between the crests of the ridges and grooves, the inclined wall portions adjacent one edge of spacer having a first set of notches 8 therein and the corresponding oppositely inclined wall portions adjacent the other edge having a second set of notches 8 with the first and second sets of notches opening in opposite directions to provide communication between adjacent channels, the envelope and spacer being spirally wound around the collecting pipe so that the spacer is positioned between adjacent turns of the envelope and the crests of the ridges and grooves of the spacer sealingly contacting the membrane whereby the channels define flow passages for the feed liquids, resiliently compressible gaskets sealingly contacting and closing the opposite ends of the channels so that the feed liquid flows through the flow passages in series and flows through the notches when moving from one flow passage to the next, means for feeding the feed liquid into a flow passage adjacent one end of the spacer and means for removing concentrated liquid from a flow passage adjacent the opposite end of the spacer.
Patent GB-1131734-A (GB)
Title: Improvements in or relating to the photographic copying of documents
Inventor: NORTON RAYMOND EDWARD
IPC: G03B27/62
Filed: 1966-06-10
Abstract: 1,131,734. Checking receipts. SECURITY TIME REGISTERS Ltd. 8 Sept., 1967 [10 June, 1966], No. 26077/66. Heading G4T. [Also in Division G2] Apparatus for checking receipts, e.g. betting slips, comprises a cash register 1 with an infeed shoot 2 built into it, the receipts to be checked being inserted by hand into a slot 3. The receipts are gripped by a pair of pressure rollers 4, 5 after being arrested on a paper stop 6 and are then printed by wheels 7. They are then fed by a conveyer 18 to a copying station 11 at which they are stopped and photographed together with a clock 12 adjacent the station. The photographed receipts are then fed to a receptacle 31. The 16 mm. film in the camera is wound on automatically and an exposure counter 32 and a warning buzzer are provided. The station 11 may be horizontal.
Patent GB-571271-A (GB)
Title: Electrolytic process for the protection of magnesium and its alloys
IPC: C25D9/04
Filed: 1939-09-19
Abstract: 571,271. Electrolysis. FRASCH, J. Sept. 19, 1939, No. 26169. Convention date, Sept. 22, 1938. [Class 41] [Also in Group II] Articles of magnesium and its alloys are protected against corrosion by means of a layer of manganese oxide electro-deposited in an A.C. bath with the articles as electrodes and using chromium and manganese compounds, the cations of manganese being between 30 per cent and 50 per cent by weight of the anions containing chromium. Preferably. 10 per cent chromic, acid solution and 6-10 per cent manganese carbonate are employed, but other manganese compounds may be used, such as the peroxide, or manganese dichromate may provide both kinds. of ions. The pH of the bath is lower than 7, the current-density is 2-12 amps./dm.<2>, the voltage 4-40, and the time 5-15 minutes, at room temperature. The oxide-layer can be treated afterwards in alkaline solution or boiling water, or ca,n be painted, or given a final treatment in a silicate solution. The Specification as open to inspection under Sect. 91 states also that the protective layer can be imparted chemically and refers to manganese anions and to solutions containing 10 per cent chromic acid and 1-5 per cent manganese carbonate. This subject-matter does not appear in the Specification as accepted.