baber/WOPTO huggingface dataset:
Patent GB-545084-A (GB)
Title: A process for the recovery of sulphur from homogeneous solutions
IPC: C01B17/033
Filed: 1940-11-06
Abstract: 545,084. Recovery of sulphur from solution. SYERS, R., and BERK & CO., Ltd., F. W. Nov. 6, 1940, No. 16139. [Class 90] Sulphur is recovered from a solution of sulphur and tar in tetrachlorethane obtained e.g. from spent iron oxide used in purifying coal gas by the process described in Specification 545,083 by introducing the boiling solution into a crystallizer 1 and adding tetrachlorethane through valve 3 and line 2 till the sulphur content is about 30 per cent. The liquid is then cooled by a jacket into which cooling liquid is introduced from a tank 4 through lines 5, 6, the cooling liquid emerging through valve 8 and lines 9, 10. On cooling to about 115‹C. the solution separates into two layers, the lower of which, consisting of a solution of about 10 per cent. tetrachlorethane in molten sulphur contaminated with tar is run into crystallizer 11 via valves 12 and 14 and line 13. The upper layer, consisting of a solution of sulphur in tetrachlorethane is cooled to 60‹C. when sulphur crystallizes out and the mother liquor is run to a storage tank via valve 15 and lines 16, 17. Closed and open steam coils 18, 18A in crystallizer 1 are now utilized to steam out the residue of tetraclorethane and melt the sulphur which is run to a tank 20 via valves 12, 19 and lines 13 and thence to a flaking machine 23 via valve 21 and line 22. Alternatively the sulphur from tank 20 may be cast into blocks. This process is repeated until crystallizer 11 contains enough bottom layer sulphur to allow of crystallization. For this purpose tetrachlorethane is run in through valves 24 and line 25 and the solution boiled by means of closed steam coil 26. The bottom layer consisting of very contaminated sulphur is run off to tank 29 via valve 14, line 13. valve 27 and line 28. Crystallizer 11 is also cooled by fluid in a cooling jacket, entering via lines 5, 30 and valves 31 and leaving via valve 32 and line 9. The bottom liquors leave through valve 33 and lines 34, 17 and the sulphur is recovered as in the case of crystallizer 11 steaming out being effected by closed and open coils 26, 26a.
Patent GB-612642-A (GB)
Title: Improvements in and relating to electric plug and socket connectors
IPC: H01R13/68
Filed: 1946-05-28
Abstract: 612,642. Two-part couplings. DORMAN & SMITH, Ltd., and LUND, J. May 28, 1946, No. 16149. [Class 38 (i)] To ensure the correct insertion of a three-pin plug 12, provided with a pin fuse 14 of the construction described and claimed in Specifications 566,384 and 574,125, in a shuttered socket 6, the earth pin 13 is a close fit in its socket contact 10 of which the entrance is in the face 7 of the socket which is provided with holes 9 for the live pins to pass to their socket contacts 11 positioned behind the earth pin socket, the arrangement being that the fuse pin 14 is firmly secured and all the pins parallel and at right angles to the faces of the plug and socket. The fuse pin is preferably fitted with a locking washer having two projections to engage the plug body if the spring lock of Specification 574,125 should fail. The earth pin has a groove 17 to coincide with a projection in the earth socket.
Patent GB-948924-A (GB)
Title: Hydraulic laundry press
Inventor: NECKEL EDMUND NICHOLAS
IPC: D06F71/06
Filed: 1960-05-06
Abstract: 948,924. Ironing presses. McGRAWEDISON CO. May 6,1960, No. 16201/60. Heading D1A. A laundry press is closed under light pressure by an air-operated cylinder-piston unit 17 and under heavy pressure by a booster unit 13 comprising a hydraulic cylinder 28 (Fig. 2) and piston 16a, and a pneumatic cylinder 24 and piston 23a carrying a ram 23 adapted to exert hydrostatic pressure on the piston 16a. As the press approaches fully open and fully closed positions a snubbing action is exerted by a part 16c of piston rod 16 entering a small clearance bore 31a. In operation, by manually opening valves 50, 51, air from line 48 is passed to line 54 to open a valve 56 and allow air through line 57 to operate the unit 17 to lower the press head 21. During the first half of the press closing movement, the piston rod 16 is pushed down and liquid is displaced from one side of piston 16a to the other through a bore 29a, ports (59 in Fig. 5, not shown) in a casting 26, a reservoir 35, ports 60, and a check valve 58, and also through bore 31a after part 16c has been withdrawn. In the second half of the press closing movement the piston 16a is pulled upwardly, the liquid flow is reversed, and valve 58 is closed. The bore 31a however allows substantial flow until closed by the part 16c to produce the snubbing action. Flow is now through an adjustable needle valve 61. When the press reaches lightly closed position, the piston of unit 17 opens a port to allow air to flow through a line 62 to operate a slide valve 46. This supplies air through line 63 to the lower side of piston 23a and cuts off the supply through 45 to the upper side. The ram 23 now advances and cuts off liquid flow at a seal 30 and produces an increased pressure on the piston 16a and press head 21. The reservoir 35 has a flexible wall 33 to accommodate slight liquid displacement during the final high pressure piston stroke. By operating a release valve 64, valve 46 is restored to the position shown, thereby reversing air supply to the booster unit 13. This allows piston 16a to descend and springs 49 to reopen the press. Specification 944,558 is referred to.
Patent GB-707512-A (GB)
Title: Improvements in or relating to methods of making articles from refractory metals by cutting operations and to articles made by means of these methods
IPC: B22F3/26
Filed: 1952-06-27
Abstract: 707,512. Electrode materials. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 27, 1952 [June 30, 1951; June 30, 1951], No. 16244/52. Class 39(1) [Also in Group XXII] A storage type cathode comprises a molybdenum cylinder 1, Fig. 1, having a chamber 3, containing barium and strontium oxide or carbonate. A porous, sintered, machined tungsten disc 4, (see Group XXII), is welded on to close the chamber. In another form, a chamber 12, Fig. 2, containing alkaline earth compounds is contained between a tungsten cylinder 9, and a molybdenum tube 10. In a directly heated cathode, the compounds 14, Fig. 3, are enclosed in a tungsten tube closed by a molybdenum plug 15. Sintered tungsten parts may also be used in the manufacture of cathodes for X-ray tubes or focusing electrodes. Specifications 700,053 and 701,871 are referred to.
Patent GB-223178-A (GB)
Title: Improvements in gravity dumping vehicles
IPC: B60P1/24
Filed: 1924-07-07
Abstract: 223,178. Rogers, F. H., (Wood Hydraulic Hoist & Body Co.). July 7, 1924. Tipping-wagons.-In a tipping-vehicle in which the body is tipped about two spaced pivots which come into action successively, each of a number of brackets mounted on the vehicle supports the two spaced pivots, the pins being disposed one in the rear of the other on each of the brackets. The chassis is provided with a number of brackets 8 having two pivotal pins 11, 12 in spaced relation to one another which take into slots 17, 18 in another bracket 16 secured to the body. The body at first tips about the pivot 12 which is at the top of its respective slot and is Immediately below the centre of gravity of the body when the latter is in its normal position. Meanwhile the slot 17 rides over the pin 11 until the top of the slot contacts .with the pin 11 whereupon tipping takes place about the pin 11, the slot 18 riding over the pin 12. In restoring the body to normal position, the reverse action takes place. The body is locked in normal position and released by means of a spring-controlled bolt 25 through the aid of a cam 28 and a, handle 26 operable from the driver's seat.
Patent GB-1001889-A (GB)
Title: Improvements in or relating to hydraulic pumps and motors
Inventor: BROWN CHARLES
IPC: F01B3/10
Filed: 1962-04-30
Abstract: 1,001,889. Reciprocating pumps and motors. CATERPILLAR TRACTOR CO. April 30, 1962, No. 16350/62. Heading F1A. In a pump or motor having cylinders alternately communicating with an inlet port and an outlet port, said ports being disposed asymmetrically with respect to the line passing through the cylinder positions at which the piston is at its top and bottom dead centres, a bleed passage communicates between the outlet port and a point between the inlet and outlet ports for registration with the cylinders prior to their registration with the outlet port, a check valve being provided in the passage to permit flow from the cylinders into the outlet port. In the embodiment shown the pump or motor comprises a rotatable cylinder block 13 coupled to a drive shaft 18 and urged against a valve face by a spring 32, the housing and block being tiltable to vary the output and reverse the flow. For a reversible flow pump, a bleed passage 49, Fig. 5, is provided for the inlet port and the outlet port. The check valve 44 controlling the bleed passage of the acting inlet port 34 is held closed by a piston 51 actuated by the outlet port pressure. When the port functions are reversed, piston 51 is moved back by a spring 50 to permit operation of the check valve. Cylinders 37 simultaneously overlap the bleed port and the acting outlet port before losing communication with the bleed port. For a reversible motor, Fig. 11, bleed passages 54a are provided for the inlet port and the exhaust port, only that associated with the acting exhaust port being effective. Check valves 44 are held in bores in the cylinder head, Fig. 1, by threaded plugs.
Patent GB-1176995-A (GB)
Title: Ventilation Means for the Rooms of a Building
Inventor: LOHMANN HEINZ
IPC: F24F13/06
Filed: 1967-04-11
Abstract: 1,176,995. Ventilating. H. LOHMANN [trading as LOHMANN-APPARATEBAU K.G.] 11 April, 1967 [20 Dec., 1966; 15 Feb., 1967], No. 16415/67. Heading F4V. Ventilation means for a building, particularly an animal house, comprises an axial flow motor driven fan 11 which draws in stale air via a duct 7 and expels it through an outlet 14, fresh air being drawn in through two inlets 16, one on each side of the outlet 14, and passing into the stable through an inlet nozzle 9. The nozzle is controlled by a spring or weight operated flap 24 which is forced open by the incoming air. A flap 20 is set to keep the incoming and outgoing air streams separate (Fig. 1) or can be adjusted to close the inlet and outlet thereby causing recirculation (Fig. 2, not shown). The ventilator is made of several sheet metal, synthetic resin, or glass fibre reinforced synthetic resin parts assembled together.
Patent GB-1076312-A (GB)
Title: Improvements in or relating to pressure gauges
Inventor: FIRTH DONALD
IPC: G01L7/02
Filed: 1964-04-21
Abstract: 1,076,312. Pressure gauges. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 19, 1965 [April 21, 1964], No.16416/64. Headings G1J and G1L. In a pressure gauge a fluid is fed to a chamber 10 to stress such chamber within its elastic limit and to move a plate 14, having an inclined upper edge, in front of a slit 16 to vary the obturation of the slit through which light is passed from a lamp 17 through an optical system 18 on to a moving film 19.
Patent GB-545261-A (GB)
Title: Improvements relating to hollow bodies made from cellulose products and other plastic substances
IPC: B65D35/10
Filed: 1940-11-15
Abstract: 545,261. Capsules. TREVOR, K., and INTERNATIONAL CONTAINERS, Ltd. Nov. 15, 1940, No. 16549. Drawings to Specification. [Class 81 (i)] [Also in Group XVII] A capsule made from cellulose derivatives and other plastic substances is produced by dipping a core into a solution of thermoplastic material to form a tube open at one end with a closed neck at the other, a closure of the same material as the container being provided secured by application of solvent after the contents have been inserted. Welded seams may be used in the closure. Specification 495,318, [Group V], is referred to.
Patent GB-718375-A (GB)
Title: An automatic web tension controlling device for a web fed printing press
IPC: B65H23/188
Filed: 1951-07-13
Abstract: 718,375. Feeding webs. HALLEY & SONS, Ltd., J., and HALLEY, A. M. Oct. 7, 1952 [July 13, 1951], No. 16610/51. Drawings to Specification. Class 100 (1). [Also in Group XXXV] In an automatic tension control system (see Group XXXV) a rubber roll is selectively operated to hold the web in driving engagement with one of two metal surfaced rollers driven at speeds, e.g. 5 per cent greater and 5 per cent less than the required rate of feed.
Patent GB-477078-A (GB)
Title: Improvements in and relating to electric contact devices
IPC: H01J5/08
Filed: 1937-06-15
Abstract: 477,078. Couplings. BRITISH THOMSON-HOUSTON CO., Ltd. June 15, 1937, No. 16625. Convention date, June 15, 1936. [Class 38 (i)] Connection between a metal lized surface 2 and a lead 4 is made by means of a conductive body 3 of wire gauze having a large surface for attachment t( the metallized surface by a metal spraying process. When the metallized surface is sprayed or to the glass body 1, high resist ance element, &c., the body 3 may be attached by an adhesive before the spraying, the lead 4 being attached either before or after securing the body 3. The body 3 may be attached in the same way to a preformed metallized surface. The lead 4 may be attached to a tag formed on the body 3 and not itself attached to the metallized surface.
Patent GB-910069-A (GB)
Title: Apparatus for loading railway wagons
IPC: E21F13/02
Filed: 1961-05-08
Abstract: 910,069. Loading moving wagons. STAMICARBON N.V. May 8, 1961 [May 10, 1960], No. 16667/61. Class 78 (4). When a shoot 3, Fig. 1, through which loose solid material descends into a wagon 1 becomes blocked by material due to the wagon filling up, a detector device 11 senses the presence of the material and brings into operation mechanism which automatically advances the wagon until material begins to flow through the shoot again. As described the material is fed to the shoot by a conveyer belt 9, Fig. 2, and spring-loaded fingers 40 are provided on the shoot to shape the top of the loaded material. The wagons are moved in one embodiment by pawls 5, 6, Fig. 1, on hydraulic rams 7, 8 which are coupled together by a rope 31 which passes round a pulley 32. When sufficient material has accumulated in the shoot to influence the capacitive electrode 11, compressed air is fed to the control system via a valve 16 to cause the rams 7, 8, which are operated by water under pressure, to move the wagons. As the level of material in the shoot drops the electrode 11 closes the valve 16 and the wagons stop moving. A valve 36 ensures that the rams move the wagons at the same speed whether they are loaded or unloaded and a valve 37, operated by a weighing device on the feed conveyer, regulates the speed of movement of the wagons in relation to the rate of supply of material. A further capacitive sensing device 12 can stop the conveyer 9. In the embodiment shown in Fig. 4, a flap 43 suspended in a shoot 44 controls a ram 47 which moves the wagons when accumulated material pushes the flap to one side. This embodiment may also be provided with controls responsive to the rate of supply of material and the amount of material in the wagons. Both embodiments have provision for manual control in the event of a breakdown. Material is prevented from falling between the wagons by shields 14, Fig. 1, which are moved round by an endless belt 13 as the wagons move under the shoot.
Patent GB-310697-A (GB)
Title: Improvements in or relating to plate racks
IPC: A47J47/16
Filed: 1928-06-08
Abstract: 310,697. Wortley, G. W., and Main, Ltd., R. & A. June 8, 1928. Plate racks.-A plate rack of the kind in which the plates are supported on their edges side by side and spaced apart comprises in combination a slotted sheet metal plate support 5 and a slotted sheet metal spacing member 6, both detachably secured to a rigid frame member 1, which is so formed that it can be secured in a vertical position to an upright, or to the upright members extending from the hot plate of a gas cooker in which case it also serves as a plate warmer. The plate spacing member has a number of slots 7 of varying width while the plate support, has a number of corresponding slots 8, the edges of these slots being bent downwards and turned over. The edges of the plate spacing member and the plate support are turned over at 9 to form an upstanding beading and along the sides at 11 the upstanding beading has inserted within it metal rods 12 which project rearwardly therefrom and then bend downwards. Sockets 14 at the corners of the frame member 1 are provided with vertical bores 15 to receive the bent portions of the rods 12. Beneath the sockets 14 are located projections 18 serving to engage the rear sides of the bent-over rods and permitting a loose fit between the bores and rods. The sheet metal parts 5 and 6 are preferably porcelain-enamelled.
Patent GB-1131873-A (GB)
Title: Improvements in or relating to coated yarn and method for its production
IPC: D06M15/244
Filed: 1966-04-15
Abstract: 1,131,873. P.V.C. composition. ENGINEERED YARNS Inc. 15 April, 1966 [26 April, 1965], No. 16738/66. Heading C3P. [Also in Division D1] A composition suitable for use in coating yarn comprises polyvinyl chloride resin, antimony trioxide, diisodecyl phthalate, a high molecular weight oil epoxide, a complex organic barium cadmium stabilizer, tri-2- ethylhexyl phosphate, a fungicide, a polyethylene glycol monolaurate and a hydrocarbon diluent having a boiling point of 225‹-400‹ F.
Patent GB-699929-A (GB)
Title: Improvements in fastenings for cases, boxes, trunks, bags and like portable articles
IPC: E05C19/14
Filed: 1951-07-14
Abstract: 699,929. Hasp fastenings; locks. BEDDOES, Ltd., J. G., and PADMORE, J. L. July 14, 1952 [July 14, 1951], No. 16751/51. Class 44 In a hasp fastening of the type described in Specification 600,427 with keylocking mechanism as described in Specification 411,621, the sheet metal locking member is provided with a co-planar extension and the sheet metal lever with a tongue adapted to enter a slot in the attachment plate, the extension being adapted in the locking position to effect latching engagement with the tongue to lock the lever to the attachment plate. The lock comprises a sheet metal plate 1 carrying a body 2. A sheet metal lever 4 is pivoted to the body 2 and is connected to a hook-ended sheet metal link 7 by a coupling member 6 the connecting pivot working in cam slots 10 in the body. One of the flanged sides ofthe latch lever 4 has a tongue 15 lying in the plane thereof, and the plate 1 has a slot to accommodate this tongue in the fastened position of the mechanism. The key-operated locking mechanism shown in Fig. 3 comprises a metal plate 20 provided with a co-planar extension 23 adapted in the locked position to latch the tongue 15 and prevent the raising of the lever 4. Specification 343,222 also is referred to.
Patent GB-1502686-A (GB)
Title: Swivel chairs
IPC: A47C3/18
Filed: 1976-04-01
Abstract: 1502686 Swivel chairs PLEDGE OFFICE CHAIRS Ltd 1 April 1976 [23 April 1975] 16860/75 Heading A4J A swivel chair comprises a spindle 7 provided with an upper end portion 6 snap fitted into a bush 9 secured to the underside of the seat frame 3. The upper end of the bush is slotted to form four resilient tongues 13 which are separated by a cap-like extremity 8 on the spindle during assembly of the chair and which then snap back into engagement with a recess formed in the spindle immediately below the extremity.
Patent GB-313517-A (GB)
Title: Improvements in or relating to abrasive wheels
IPC: B24D5/16
Filed: 1929-05-31
Abstract: 313,517. Perks Co., G. W., (Assignees of Gammeter, J. R.). June 13, 1928, [Convention date]. Wheels.-A grinding-wheel 10 having side plates 11 secured thereto by intermediate layers of rubber or the like 12, and adapted to be held on a spindle 14 by clamping-plates 13, has the plates 11 formed with scorings 15, so that as the wheel wears, strips of the plates can be torn off to reduce the diameter thereof, for example by wrapping the torn strip on a. slotted key 18. Specification 286,683 is referred to.
Patent GB-315544-A (GB)
Title: Improvements in or relating to power driven vehicles
IPC: B61D13/00
Filed: 1928-06-11
Abstract: 315,544. Tatra Works, Ltd., and Florian, O. June 11, 1928. Carts and wagons; wagons; general design of.-A central shaft d arranged above the engine a is fitted with steps k leading to the driver's seat f, affords access to the engine, and serves as a ventilating shaft for the body h, air being drawn through louvres i by a fan g. Radiators are located on the roof at the sides of the shaft, with which they communicate.
Patent GB-530328-A (GB)
Title: Improvements in sound-absorbing structures
IPC: E04B1/84
Filed: 1939-06-09
Abstract: 530,328. Non-conducting coverings for sound. WERNER GENEST GES. June 9, 1939, No. 16978. Convention date, July 9, 1938. [Class 64 (ii)] In the transition from the sound transmission medium 1 to the sound absorbing medium 3, the transition space is occupied by sound absorbing material 2 arranged as elements having a linear or concave profile, e.g. in the form of cones, pyramids, or projections with walls of exponential form. The materials may comprise slag wool, glass wool, wadding, gas concrete, or foam concrete. A depth of 1m. is exemplified. The insulation may be covered with wire netting. In the Specification as open to inspection under Sect 91, the material may take the form of wedges with straight or stepped or concave sides, or a conical spiral. This subject-matter does not appear in the Specification as accepted.
Patent GB-876899-A (GB)
Title: Indicator board
IPC: G09F7/00
Filed: 1960-05-13
Abstract: 876,899. Indicators. WASSELL ORGANIZATION Inc. May 13, 1960 [May 13, 1959], No. 17033/60. Class 3(2) An indicator board has a number of strips 22, each having a groove 26 to receive flexible tape 31 and mounted in a frame 11 which has at least one closure member 18 or 18a, Fig. 3 (not shown) for positioning the strips. Each strip has a tongue and a groove on its respective sides to key adjacent strips to each other. In a modification each strip has in addition a longtitudinal slot 24 and a groove 25 to receive a flexible display tape 27, also Fig. 3 (not shown), and display insert, Fig. 7 (not shown) respectively. As an alternative to the pivoted gate closure member 18, the end of the frame is bent back 29, Fig. 9 (not shown), and the strip is slotted 28 to fit therein. Specification 876,900 is referred to.
Patent GB-258033-A (GB)
Title: Improvements in brake slack adjusters for vehicles
IPC: B61H15/00
Filed: 1925-07-02
Abstract: 258,033. Mitchell, J., and Cossey, J. C. G. July 2, 1925. Compensating for wear.-In an automatic slackadjuster for railway brakes &c., comprising a slotted and internally toothed segment a interposed between two parts of a brake gear the teeth of the segment being engaged by a pin b on the brake rod d, the correct action of the mechanism is ensured by means allowing first free movement and then retarded movement of the brake rod d. In one arrangement, a pad l is pressed against the rod d by a roller m mounted on a bracket o fixed to the vehicle chassis. The pad moves freely with the rod till lugs p on the pad abut against the roller or the bracket, when the friction between the stationary pad and the rod retards the latter. The pad may be pivoted to a lever which is pivoted to the bracket o, stops being provided on the pad. The pad p may be provided with an upward extension to which is pivoted a cam having a balance weight and adapted to press on a second pad above the rod d, the brake rod being gripped between the two pads. Specification 105,629 is referred to.