baber/WOPTO huggingface dataset:
Patent GB-340851-A (GB)
Title: Improvements in feed mechanisms for mills
IPC: B02C4/28
Filed: 1930-02-22
Abstract: 340,851. Grinding, crushing, &c. mills. NISOG, O., 9, Cellerstrasse, Brunswick, Germany. Feb. 22, 1930, No. 5927. Addition to 339,801, [Class 59, Grinding, crushing, &c.]. [Class 59.] Roller mills.-In the means for regulating the feed in roller mills having driving gear controlled by fluid pressure as described in the parent Specification, the means for rotating the second feed roller or worm is made dependent upon the quantity of feed material flowing to the mill and is controlled by the fluid pressure. The wheel 45 driving the second feed roller or worm is fixed to a shaft 44 on which slides a part 51 of a dog-clutch, the other part 52 of which is fixed to a shaft 44a driven at constant speed by the gear wheels 42, 43. The fluid pressure pipe 20 is connected to a cylinder 46 provided with a piston 47, piston rod 49 and return spring 48. One end of the piston rod is connected by an arm 50 to the sliding clutch 52 and the other is provided with an arm 53 adapted to rock a two-armed switch 54, 56. When the feed is being delivered to the mill the fluid in the pipe 20 is under pressure from the pump 10 and the piston 47 compresses the spring 48 and moves the part 51 into engagement with the part 52 of the dog-clutch so that the gear-wheel 45 is revolved. When the feed and the pressure in the pipe 20 ceases the spring 48 moves the piston and disengages the clutch. When the arm 53 is moved with the piston 47 one or other of the coloured lamps 57, 58 is switched on to indicate whether the feed is flowing or stopped.
Patent GB-1376247-A (GB)
Title: Amine treatment of sulphonated phthalocyanines
IPC: C09B67/22
Filed: 1972-02-09
Abstract: 1376247 Polyamide-based ink; nitrocellulosebased ink AMERICAN CYANAMID CO 9 Feb 1972 [1 March 1971] 5995/72 Headings C3F and C3R [Also in Division C4] Solvent ink systems contain a novel aminetreated copper phthalocyanine pigment containing an average of 0À03-0À18 SO 3 H groups per molecule and prepared by treating a copper phthalocyanine containing 0À03-1À5 SO 3 H groups per molecule which has no phenyl groups attached to the phthalocyanine nucleus with a C 4-12  mono-, di- or tri-alkylamine or corresponding cycloalkylamine or a mixture of such amines in an aqueous medium at 20-100 C., and, if the product has a too high SO 3 H content, blending it with sufficient unsulphonated or low sulphonated phthalocyanine to give the required SO 3 H content product. One ink system specified contains polyamide resin, isopropanol and mineral spirits; and another contains dibutyl phthalate, nitrocotton, ethanol, isopropanol and ethyl acetate. The amine is physically and/or chemically combined with the pigment and imparts superior properties to it.
Patent GB-722437-A (GB)
Title: Improvements in buffers
IPC: B61G11/12
Filed: 1952-03-07
Abstract: 722,437. Hydraulic buffers. FITZJOHN, A. P., and PLATTS & CO., G. T. Feb. 27, 1953 [March 7, 1952], No. 5997/52. Class 103 (5). A hydraulic buffer comprises a casing 10 having a stationary hollow piston 15 forming an axial hydraulic cylinder 17 and an annular hydraulic cylinder 16 interconnected by restricted ports 18. A floating piston 28 separates the annular hydraulic cylinder 16 from an annular air chamber 27 which is connected by a non-return valve 35 to the main air chamber 23 in the buffer head 11. The cylinder 17 is closed by a piston 19 having a stem 20 which is engaged in buff by the buffer head to displace hydraulic fluid into the annular chamber 16 via ports 18, thus compressing the air in the chamber 27 and providing a restoring -force.
Patent GB-886580-A (GB)
Title: Improvements relating to tap and die holders
IPC: B23B31/38
Filed: 1960-02-20
Abstract: 886,580. Screw-cutting and -tapping attachments. RAYMOND, H. F. Feb. 20, 1960, No. 6053/60. Class 83 (3). A tap and die holder 12, Fig. 2, has a shank 13 rotatable in a body 9 fixed in a chuck 10. Holder 12 has diametrically opposed longitudinal bores 21, housing pins 20 and an annular groove 22 cuts into the bores. The enlarged end 6 of body 9 has radial holes 24b, Fig. 4, containing dogs 23 which are movable through the groove to engage the pins by a sleeve 26 slidable on body 9 between two positions determined by a spring-pressed detent ball 28. The dogs have chamfered faces 24a co-operating with a chamfered surface at the mouth of the sleeve. Specification 688,678 is referred to.
Patent GB-348733-A (GB)
Title: Improvements in a strap watch
IPC: G04B37/14
Filed: 1930-02-24
Abstract: 348,733. Wrist-watch strap attachments. MANHEIMER, A. E., 31, North State Street, Chicago, U.S.A. Feb. 24, 1930, No. 6125. [Class 43.] In wrist-watches wherein the case is provided at opposite sides with recesses 22, beneath a removable cover 15, to receive enlarged end portions or loops 20 of straps 11, and the cover 15 is adapted to close the recesses 22 and retain the loops 20 in position, the recesses 22 open towards a flat side of the case and the cover is provided with a lip 27 for closing the top of the recesses. Pins 21 are passed through the loops 20, which are then fitted into the recesses 22, and the cover is snapped into position thereby retaining the loops l:y an upwardly extending lip 23 on the case, and a margin 26 and the lip 27 on the cover. A back cover 14 may be similarly used instead of the front cover. If the strap is made of metal, the pins may be dispensed with. In a modification the pin and loop are slidably received in a key-hole slot in a removable end-piece which is inserted in the recess, and retained in position by the cover, the open ends of the slots being closed by the end walls of the recess. Specification 319,106, [Class 43, Fastenings, Dress], is referred to.
Patent GB-564144-A (GB)
Title: Improvements in and relating to transportable glass-houses
IPC: A01G9/16
Filed: 1943-04-19
Abstract: 564,144. Glasshouses. BEAN, A. W. April 19, 1943, No. 6234. [Class 20 (i)] Portable glasshouses constructed of precast concrete members as described in Specification 564,143 have the outer lines of uprights 3 stayed to the adjacent inner lines by means of precast concrete stays 1 extending from the upper ends of the outer uprights to the lower ends of the inner uprights and half-lapped at their ends to fit against the sides of the uprights, to which they are bolted by bolts 2.
Patent GB-394931-A (GB)
Title: Improvements relating to letter-sheets and the like
IPC: B42D15/08
Filed: 1933-03-01
Abstract: 394,931. Letter-sheets &c. LINDGREN, A. G. S., 14, Rosenlundsgatan, Gothenberg, Sweden. March 1, 1933, No. 6238. Addition to 394,256. [Class 146 (ii).] A letter-sheet or the like is provided with marginal adhesive coatings according to the parent Specification, and comprises a sheet 6 of paper, cardboard, fabric, &c. adapted to be folded along a line 9 and maintained closed by the marginal coatings applied along one or more of its edges. Where an address is written on the inner face of the sheet, for example, within an outlined space 10, a window 11 may be cut out, or a portion of the sheet may be treated with oil to render it transparent, so that when the sheet is folded the address is exposed. One of the edges of the sheet may be uncoated so that the matter written on the sheet may be inspected, and the sheet sent through the post .at the cheap rate.
Patent GB-791465-A (GB)
Title: Improvements in or relating to electric condenser
IPC: H01G13/00
Filed: 1956-03-01
Abstract: 791,465. Soldering. RADIO MATERIALS CORPORATION. March 1, 1956 [April 29, 1955], No. 6444/56. Class 83 (4). [Also in Group XXXVI] A method of soldering connections to a batch of capacitors. The connectors, which are in the form of bifurcated clips 14 (Fig. 3) straddling the capacitors 12, are clamped between two strips 26. The batch is first fluxed by dipping in tank 30, then soldered by passing through the slot 33a into,the solder bath 33 before being stood on the rack 34 to cool; any surplus flux being directed by shoot 37 into the tank 30. A hood 35 with a fume extractor pipe 36 covers the whole bench.
Patent GB-214788-A (GB)
Title: Improvements in poultry trap nests
IPC: A01K31/16
Filed: 1923-03-06
Abstract: 214,788. Wedgwood, T. W. March 6, 1923. Trap nests.-A trap nest made. of timber com. prises a nest-platform f with a dished seating g of leather or other material pivoted at f<1> and having its front end projecting over the inner end of the entrance door d which normally forms a platform pivoted at d'. The exit door m which is telescopic is held closed by a catch k pivoted at k' which catch would fall down but is held up in engaging position by a counter-weighted trigger j which coacts with a lever i normally resting on a projection u. The hen on entering the nest depresses the platform f thus raising the entrance door d. The egg when it is laid falls through a hole g<1> on to an inclined way h of, or covered with, felt, oil-cloth, or the like and then on to the lever i<1> pivoted at i<2>. This is rotated clockwise, thus rotating the trigger j counterclockwise and allowing the catch k to fall and release the door m. On leaving the nest the hen raises the door m which afterwards swings down again and tips the projection j<2> on the trigger j so that the catch k is raised to hold the door m closed. Meanwhile the platform f and door d have resumed their normal positions due to gravity in which action the inner end of the door d may help to restore the platform f. To adapt the nest to different sizes poultry laths q may be inserted in the exit c. The egg-drawer p is removable including the way h, is accessible by a door s, and has preferably a sloping floor p<1>.
Patent GB-137431-A (GB)
Title: Improvements in connection with mules for spinning
IPC: D01H3/06
Filed: 1919-03-17
Abstract: 137,431. Smith, S. C. March 17, 1919. Creel arrangements.-In a mule, the surface drum which causes the bobbins to rotate comprises a plain cylinder 2 provided on its outer surface with a series of wires 3 spaced apart. The wires are passed through the block end 1 and are secured by splitting the ends and clinching them tightly against the block ends. The wires are also soldered to the cylinder.
Patent GB-512478-A (GB)
Title: Thermoplastic binders for flooring materials and road materials
IPC: C08L57/00
Filed: 1938-03-02
Abstract: 512,478. Synthetic resin compositions. BRITISH ASPHALT & BITUMEN, Ltd., and CAPPER, N. S. March 2, 1938, No. 6574. [Class 2 (iii)] Thermoplastic bindings for flooring or road materials comprise a mixture of a tough synthetic resin with a natural resin or derivative thereof or a brittle synthetic resin together with a plasticizer. Suitable tough resins include vinyl resins especially a polyvinyl acetal ; brittle resins include rosin, ester gum or calcium resinate ; plasticizers include tricresyl phosphate or dibutyl phthalate.
Patent GB-1183210-A (GB)
Title: Lapping Apparatus
IPC: B24B37/34
Filed: 1967-03-15
Abstract: 1,183,210. Lapping. CRANE PACKING CO. 15 March, 1967 [21 March, 1966], No. 6597/69. Divided out of 1,183,209. Heading B3D. Apparatus for loading a plurality of substantially identical workpieces having a flat surface to be lapped on an annular lap plate, comprises: (i) a wear ring adapted to rest on the lap plate and defining a circular workpiecereceiving space on the lap plate, (ii) a disc-shaped pressure plate disposed loosely within the wear ring and adapted to rest upon the workpieces within the wear ring, (iii) a vertically disposed pressure plate guide, (iv) means on the lower end of the guide mounting the pressure plate on the guide for rotation thereon, (v) a fixed frame disposed over the annular lap plate, (vi) a vertically disposed shaft rotatably mounted in the frame in concentric relation to the annular lap plate, (vii) a horizontal guide having a part fixed to the lower end of the shaft, (viii) a crosshead slidable in the horizontal guide part, (ix) means securing the pressure plate guide in the crosshead for movement therewith, and (x) means on the frame and co-operating with the crosshead to prevent movement of the crosshead in the horizontal guide part except at a predetermined angular location of the horizontal guide part with respect to the frame. A lapping machine embodying the invention is as described in Specification 1,183,209.
Patent GB-100451-A (GB)
Title: Improved Heel and Sole for Footwear.
Inventor: THOMAS HOLKAR ROBINSON
IPC: A43B21/04
Filed: 1916-05-08
Abstract: 100,451. Robinson, T. H. May 6, 1915, [Convention date]. Void [Published under Sect. 91 of the Actl. Drawings to Specification. Paints and coating-compositions.-The edges of boot soles and heels in which rubber layers are arranged between the leather lifts are coloured with a mixture of " Stockholm tar " and " Paraffine," the quantity of the latter being just sufficient to moisten the tar. This gives the edges a uniform dark colour, waterproofs the joints, and is capable of being polished.
Patent GB-739845-A (GB)
Title: Improvements in or relating to a leaf or book binding device
IPC: B42F9/00
Filed: 1954-03-08
Abstract: 739,845. Spring clips. KODAK, Ltd. March 8, 1954 [March 6, 1953], No. 6624/54. Class 44. [Also in Group XV] A clip for binding together an assembly of sheets 6, comprises a circumferentially resilient plastic tube 1 of circular crosssection having a slit extending from end to end, one or both longitudinal edges, 13, Fig. 5, or 2, Fig. 2, of the slit having a number of spaced projections 12 or 3 extending in the direction of curvature of the tube. The sheets 6 and covers 4, 5 are provided with perforations 10 into which the perforations 3, or 12, engage as shown, the resilience of the tube holding the inner sheets in position. The longitudinal edges 2 or 13, 14 are outwardly curved as at 11 to facilitate sideways entry of the sheets. The length of the projections 3, which engage each other when no or few sheets lie in the slits, is preferably slightly greater than the thickness of the tube 1. The projections 12, which engage the edge 14 with no or few sheets, have straight sides 15 joined by a curve 16, the distance between the sides 15 being approximately equal to the diameter of the perforations 10.
Patent GB-674208-A (GB)
Title: Improvements in guard control mechanism for power presses
IPC: F16P3/04
Filed: 1950-03-17
Abstract: 674,208. Machinery safety devices. MATCHETT & MARTINEAU, Ltd., and TIBENHAM, E. A: Dec. 6, 1950 [March 17, 1950], No. 6676/50. Class 80 (iv). In a power press safety device in which a rod' member 5 is adapted to be operated by a cam 6 on the press shaft to co-operate with a member 7 coupled to the guard 1, 2 so that the guard cannot be opened whilst the machine is in motion, the rod member 5 is formed in two parts 27, 28 forced apart by a spring 29 which is adapted to give should the rod member 5 be actuated by the cam 6 before the member 7 is completely clear of the end of the rod and the guard completely closed. A blocking member 18 is also coupled to the guard 1, 2 so as to prevent the press clutch being engaged through the usual pedal mechanism until the guard 1, 2 is closed.
Patent GB-589645-A (GB)
Title: Improved method of applying surfaces or coatings by spraying
IPC: C23C4/02
Filed: 1944-04-11
Abstract: Metal surfaces are first coated with a bonding cement of synthetic resin and then sprayed with metal.  Finely divided metal may be sprayed on by a spraying gun or apparatus using compressed gas and may be fused by heating as it issues from the nozzle.  The resin may be applied in solution or sprayed in powdered form through flame. The Provisional Specification refers to a coating of rubber or synthetic rubber replacing the metal coating.  Specification 538,203 is referred to.ALSO:Metal surfaces are first coated with a bonding cement of synthetic resin and then sprayed with metal.  Finely divided metal may be sprayed on by a gun or apparatus using compressed gases, and may be fused by heating it as it issues from the nozzle.  The resin may be applied in solution or sprayed in a powdered form through flame.  Specification 538,203, [Group III], is referred to.
Patent GB-768190-A (GB)
Title: Improvements in flying machines for vertical and horizontal flight
Inventor: FOCKE HEINRICH CARL JOHANN
IPC: B64C29/00
Filed: 1955-03-07
Abstract: 768,190. Combined helicopters and aeroplanes: variable pitch propellers. MINISTERIO DA AERONAUTICA. March 7, 1955, No. 6682/55. Classes 4 and 114. An aircraft is equipped with one or more adjustable pitch propellers adapted to be swung in usion with the wings about an axis transverse to the propeller axis and to the longitudinal axis of the aircraft between positions suitable for action as propellers and as rotary wings, an element of the pitch changing mechanism being coupled to an element stationary relative to the aircraft so that on swing- ing the system about the transverse axis, the blade pitch is adjusted to that suitable for propulsion or rotary wing lift as the case may be. In Fig. 2, a spar 14 is secured to the airframe 17, and supports two sleeves 18, 19 each welded to a rib 10, one of the latter being rotatable on the spar by an eccentric 21 and jack 25. The engine 13 is mounted at four points 30 on forward extensions 31 of two ribs and drives a three-bladed hub 34. Links 41 control the pitch of the blades, and are attached to a ring member 44 applied to the propeller shaft. A further ring member is rotatably mounted on member 44, and is coupled by links 54 to a lever 56 linked to the engine block at one end by a rod 59, and to a lug 64 on the spar at its other end by a rod 12. As the wing is tilted, lever 56 tilts relative to the engine block, moving ring member 44 axially, and changing the blade pitch. Specification 757,279 is referred to.
Patent GB-1261559-A (GB)
Title: Control circuits
IPC: G05F1/445
Filed: 1969-02-07
Abstract: 1,261,559. Switching circuits; control of A.C. motors. R.C.A. CORPORATION. 7 Feb., 1969 [19 Feb., 1968], No. 6683/69. Headings H2H and H2J. [Also in Division G3] An A.C. switching circuit includes a bidirectional thyristor or triac, the triggering of which is controlled by a D.C. signal applied to a variable impedance coupled to a timing circuit. As shown in Fig. 3, a load 315 is connected in series with a triac 320 across A.C. supply terminals 310, 312. The triggering circuit 325 for the triac contains an energy storage device such as a capacitor, and supplies a signal to the triac after a time delay determined by the setting of a variable resistor 330. The timing is further controlled by a circuit including a transistor 360 to the base of which a D.C. signal is applied by way of a terminal 343. This signal effectively varies the impedance of the circuit and so adjusts the current drain from the A.C. supply. The circuit may be used to control the speed of a tape recorder motor by feeding an error signal to the terminal 343, or for controlling studio lighting.
Patent GB-471540-A (GB)
Title: Improvements in or relating to motor operated valves
IPC: F16K31/122
Filed: 1936-03-05
Abstract: 471,540. Hydraulic transmission apparatus; valves. PAYNE, M., and BRITISH THERMOSTAT CO., Ltd. March 5, 1936, No. 6703. [Classes 69 (ii) and 135] The invention relates to apparatus for operating a spring or weight-loaded main valve 3 by the hydrostatic pressure produced by a motor-driven pump 5 in a working chamber 1, in which a floating piston or diaphragm 7 is interposed between the pump and the working chamber and controls a release valve 9 which opens to allow fluid to escape from the working chamber when the pump motor is switched off. According to the invention an auxiliary valve 14 connected to the valve 9 controls a passage 15 through the floating piston or diaphragm, the passage being open to allow fluid to pass from the pump to the working chamber after the release valve is closed. As shown, the valve 3 is opened against a spring 4 by hydraulic pressure on a piston 2. However, the valve may be closed by the hydrostatic pressure and the piston 2 may be replaced by an equivalent device such as a bellows. A spring 8 tends to maintain the piston 7 at the upper end of its chamber 6 and a further spring 16 maintains the auxiliary valve 14 seated on the piston until the latter has descended far enough for the release valve 9, which is on the same stem 13 as the auxiliary valve, to close a conduit 11 leading back to the pump supply 12. The pump is fitted with a relief valve (not shown) to protect its motor from overload.
Patent GB-289220-A (GB)
Title: Treatment of ores containing platinum
IPC: C22B11/06
Filed: 1927-03-10
Abstract: 289,220. Smith, S. C. March 10, 1927. Right to Patent relinquished. Dry processes of extracting precious metals; precipitating.-A liquor containing platinum and other precious metals such as palladium, rhodium, iridium, gold, and silver obtained from a platinum ore, concentrate. or residue by treatment thereof with hydrochloric acid in conjunction with chlorine or. with a substance other than nitric acid which evolves chlorine or an oxide of chlorine during the treatment, is treated with zinc dust to precipitate the precious metals. The residue from the treatment of the ore &c. may comprise a concentrate of rhodium and iridium and may be treated, as by fusion with lead, for recovery of these metals.
Patent GB-755608-A (GB)
Title: Improvements in and relating to hinges
IPC: E05D3/02
Filed: 1953-03-11
Abstract: 755,608. Hinges. BUTLER, E. H., and PRICE, A. N. March 10, 1954 [March 11, 1953], No. 6754/53. Class 65 (2). The socket element of a take-off hinge comprises a cup 1 adapted to be packed with grease, and a bar 2 which is provided with projections adapted to key with a cement mix, the cup being at one end of the bar and the cup axis being in the median plane Y-Y of the bar.
Patent GB-513634-A (GB)
Title: Improvements in or relating to nickel plating
IPC: C25D3/12
Filed: 1938-03-04
Abstract: 513,634. Electrodeposition of nickel. PARKER -WOLVERINE CO. March 4, 1938, No. 6755. Convention date, April 14, 1937. [Class 41] A nickel-depositing bath contains a soluble nickel salt, a soluble benzene disulphonte (e.g. nickel benzenedisulphonate) and a soluble zinc salt. Nickel benzene m-disulphonate may be used or the nickel, sodium or calcium salts of a technical mixture of benzenedisulphonic acids. The zinc salt may be formed in situ by dissolving metallic zinc in the acid bath. An example of a bath comprises nickel sulphate and chloride, boric acid, technical nickel benzenedisulphonate and zinc sulphate. The concentration of benzene disulphonate preferably corresponds to a concentration of 6-15 gms. per litre of nickel benzene disulphonate, and the concentration of zinc salt is 0.5 to 1.0 gm. per litre as metallic zinc. The pH of the bath is preferably 3.5 or less.