baber/WOPTO huggingface dataset:
Patent GB-1398617-A (GB)
Title: Feed system for apparatus for performing operations on sheet material
IPC: B65H3/24
Filed: 1972-06-29
Abstract: 1398617 Feeding sheets E V HENC 29 June 1972 [30 June 1971] 30482/72 Heading B8R Pile supports.-Sheets B, Figs. 1, 2, 3, are piled on a feed table 12 and aligned by means of adjustable side guides 16, 17, back stop members 18, and front stops 20 defining at the bottom a throat for passage of one sheet at a time. Sheet separators.-Sheets are separated from the bottom of the pile and fed to rollers 14 by a plurality of feed fingers 32 pivotally mounted at 52 on a feed bar 30. Each finger has an arcuate member 56 which engages the rear edge of the bottom sheet so as to separate the sheets when the bar 30 is reciprocated. The separators are only operative when a piston 64 pushes up a leaf spring 57 to raise the fingers against the bottom of the pile. Control means.-A three-way switch is settable to (a) an "off" position, which closes a solenoid valve to cut off air pressure from the piston 64 and prevent feed, (b) normal feed position wherein the valve is open, to feed a sheet on every cycle of a sheet handling machine, (c) a "slip" position wherein the valve is alternately open and closed on each reciprocation of the bar 30, so as to feed sheets on alternate cycles.
Patent GB-651113-A (GB)
Title: Process for the manufacture of aqueous solutions of riboflavin
IPC: A61K31/525
Filed: 1948-11-24
Abstract: Stable aqueous solutions of riboflavin are obtained by incorporating therein a lower aliphatic (e.g. ethyl or propyl) hydroxy amide of gentisic acid.  Additional vitamins, e.g. vitamin B1, niacinamide, pantothenic acid and vitamin C may be added.  Gentisic acid amides may be obtained by reacting a gentisic acid ester, e.g. methyl or ethyl gentisate, with a lower aliphatic hydroxy amine, e.g. monoethanolamine or isopropanolamine.ALSO:Stable aqueous solutions of riboflavin are obtained by incorporating therein a lower aliphatic (e.g. ethyl or propyl) hydroxy amide of gentisix acid.  Additional vitamins, e.g. vitamin B, niacinamide, pantothenic acid and vitamin C may be added.
Patent GB-757924-A (GB)
Title: Improvements in collapsible containers
IPC: B65D88/52
Filed: 1953-11-05
Abstract: 757,924. Box pallets for handling loads. RICHARDSON, G. S. Feb. 3, 1955 [Nov. 5, 1953], No. 30551/53. Class 78 (4). [Also in Group XVII] A collapsible box comprises flanged sides and base secured together by bolts passing through clearance holes in some components into screwed holes in others, the base having wooden bearers 28 to accommodate the forks of a lift truck.. The sides are capable of being accommodated in the base, when the box is collapsed, with each smaller side resting within a larger side. The box may have a lid 8 which is secured to parts 12 of the base when the box is collapsed. Channel members 24 stiffen the sides and the vertical corners and base are reinforced by angle pieces (not shown). The lower flanges of the smaller sides are removable.
Patent GB-358728-A (GB)
Title: Process of preparing iodides of alkali metals or alkaline earth metals
IPC: C01D3/12
Filed: 1930-10-13
Abstract: The preparation of alkali and alkaline-earth metal iodides from iodide-iodate mixtures or by the action of iodine upon the corresponding metal oxides, hydroxides, carbonates, or bicarbonates in the presence of water is effected under heat with the addition of formaldehyde, formic acid, oxalic acid, or salts of the two acids, which act as reducing agents and yield on reduction only carbon dioxide with or without water and it may be the metal for formation of the iodide.  The preparation of sodium, potassium, and calcium iodides is described.  The process may be applied to the recovery of iodides from the waste lyes obtained in the production of iodoform from alcohol, which contain formate, iodate, iodide, and alkali carbonate, by adding iodine and if necessary alkali hydroxide in quantities sufficient to oxidize all the formate present. Specification 285,915, [Class 1 (iii), Oxides &c., Metallic], is referred to.
Patent GB-1513825-A (GB)
Title: Method of detecting alterations in signals corresponding to the read-out of a data carrier and system for implementing such a method
IPC: G11B5/09
Filed: 1975-07-22
Abstract: 1513825 Threshold detector THOMSON-BRANDT 22 July 1975 [23 July 1974] 30695/75 Heading H3T An arrangement for detecting when the amplitude of an angular modulated read-out signal supplied by a reproducing system passes lower and upper threshold levels comprises: threshold circuits 3, 4 having thresholds corresponding, respectively, to the lower and upper thresholds; a monostable circuit 7 coupled to the output of the first threshold circuit 3; an OR gate 8 fed with the output of the second threshold circuit 4 and the complement ouput of the monostable 7; a second monostable circuit 9 fed with the output of the OR gate 8; and a second OR gate 10 fed with the output from the monostable 9 and the complement output from the monostable 8. As long as the input signal exceeds the lower threshold, monostable 7 is held in its unstable state producing a "0" signal at its complement output. If the input signal falls below this threshold, the output from comparator 3 ceases and monostable 7 reverts to its stable state feeding a "1" level signal to correcting circuit 11 via OR gate 10. The "1" level signal is also fed via OR gate 8 to trigger monostable 9 on its trailing edge, thus prolonging the signal to circuit 11 after the termination of the "1" level signal. If the amplitude exceeds the upper threshold the output signal from comparator 4 triggers monostable 9 to again provide a signal to correction circuit 11.
Patent GB-1002227-A (GB)
Title: Improvements in or relating to impact breakers
Inventor: PARKER FREDERICK WILLIAM
IPC: B02C13/09
Filed: 1963-08-02
Abstract: 1,002,227. Impact crushers. F. PARKER Ltd. July 28, 1964 [Aug. 2, 1963], No. 30713/63. Heading B2A. A drum-shaped rotor for an impact crusher is provided with slots 11 extending axially of the rotor, with side faces 11a, 11b of each slot inclined towards one another in the radially outwards direction to receive correspondinglyshaped hammers 12, which are urged outwards radially and wedged in the slots 11 by wedges 14. As described, the rotor is formed by sections welded together and keyed at 10 on a shaft 4, and cut away at the leading sides of the slots to expose the striking faces 12c of the hammers. Each wedge 14 has a screw-threaded adjusting rod 15, extending through an aperture 16 in the rotor to receive a nut 17 which draws the wedge into position when tightened. A circular end plate 19 at each end of the rotor has its periphery substantially flush with the outer top faces of the hammers, and to allow for axial withdrawal of the hammers one end plate has three removable bolted sections aligned with the ends of the hammers. The rotor is rotated in a steel casing lined with manganese steel plates and provided with pivoted deflecting bars and adjustable breaker bars.
Patent GB-307952-A (GB)
Title: Improvements in or relating to heels for footwear and methods of attaching the same
IPC: A43B13/34
Filed: 1927-11-16
Abstract: 307,952. Mellerio, L. P., (Shoe Form Co., Inc.). Nov. 16, 1927. Heels.-Boot and shoe heels 1, Figs. 1 and 4, are formed of non-metallic material with a cavity in the interior which does not extend so far as the heel seat 9, and fastenings 13, for attaching the heel to the boot &c., are passed through the material of the heel above the hollow. In the case of moulded heels, Fig. 1, an entrance to the cavity is provided, preferably on the breast face, and an anvil member 11 of a nailing machine may be inserted in the cavity to upset the fastenings, the entrance subsequently being closed. Alternatively, the cavity may be reinforced with a metal core 20, Fig. 4, which may be open at one side face to permit of the introduction of an anvil to clench the fastenings 13, or the metal of the core may be made sufficiently thick to clench the fastenings, and the core may in that case be closed on all sides, and at the top and bottom also. Projections or holes 26 may be formed on or in the core to increase the hold between the core 20, and the moulded material of the heel 1. The core or an anvil inserted therein may also serve as means for clenching the fastenings 23 which secure the top-lift 24 of the heel. The outer face of the heel is finished to correspond with the shoe.
Patent GB-748002-A (GB)
Title: Apparatus for thermodynamically braking steam winding engines
Inventor: HEUCKE GERHARD
IPC: F01B25/00
Filed: 1954-10-26
Abstract: 748,002. Winding engine brakes. AKT.- GES. EISENHUTTE P. RUDOLPH. Oct. 26, 1954, No. 30796/54. Class 103 (1). [Also in Group XXVI] A steam engine is braked thermodynamically by setting the control of the cylinder to back pressure and closing the control valve 4, the pressure in the live steam pipe 5 shut off by the control valve being adapted to the braking effort by an inserted regulator which governs the entry of steam from pipe 9A branched off the exhaust pipe 9 to pipe 10 leading to the shut-off inlet pipe 5. The regulator, as shown in greater detail in Fig. 2, comprises a reducing valve 11, the effect of which is varied by steam pressure acting below a piston in cylinder 17 according to the regulation of a valve 19 by control handle 12.
Patent GB-324129-A (GB)
Title: Improvements relating to the glazing of shop fronts
IPC: E06B1/38
Filed: 1928-10-24
Abstract: 324,129. Marshall, C. B., Ellis, W. B., Millican, H. C., and Marshall. C. T. Oct. 24, 1928. Shop fronts.-The glass sheets a of shop fronts are curved in a vertical plane, the concave side facing objects, lights &c. to prevent reflections in directions that would interfere with an observer's clear vision. The surfaces of the sheets may have two or more curvatures merging into each other. The projecting upper part of the shop front may be open or provided with artificial lighting means. A transom of plane or prismatic glass may be provided above the edge a<2> of the inwardly curved glass.
Patent GB-699642-A (GB)
Title: Improvements in or relating to a bathtub
IPC: A47K3/02
Filed: 1950-12-18
Abstract: 699,642. Baths. RODMAN, C. J. Dec. 18, 1950, No. 30814/50. Class 26 A bath-tub has a bottom of stepped substantially level areas 2 with a drain 4 located at the centre of the front of the tub in the lowest of the said areas which extends to at least the longitudinal centre of the tub. The tub may be drawn from sheet steel and be supported on wooden or metal wedges. The front apron of the tub may have removable panels as described in Specification 699,679, and shelves for soap or brushes may be fitted behind them.
Patent GB-754997-A (GB)
Title: Improved sanding platen
Inventor: REIDESEL RICHARD G
IPC: B24B21/08
Filed: 1954-10-26
Abstract: 754,997. Belt sanding. MINNESOTA MINING & MANUFACTURING CO. Oct. 26, 1954, No. 30883/54. Class 60 A platen in a belt sanding machine comprises a face plate 11, a layer of sponge rubber 12 and a base plate 14. Bolts 15 extend through apertures in the face plate, resilient layer and base plate, being free to turn or move axially therein. The heads 17 of the bolts are countersunk; each bolt carries a nut 18 between which and the base plate is positioned a spiral compression spring 19. Alternatively, studs may be fixed to the face plate and extend through apertures in the resilient layer and the base plate each stud having a head between which and the base plate a spring is positioned. In use, the base plate is fixed to the machine frame, e.g. a sleeve 25 secured to the base plate 14 is mounted on a supporting shaft 26 so that the platen supports the sanding belt 29 where it engages the work such as a sheet of glass 27 held by hand or resting on a support 28.
Patent GB-891994-A (GB)
Title: Improvements in and relating to dynamo-electric machines
Inventor: PERRY BRIAN LAKE
IPC: H01R39/34
Filed: 1959-09-10
Abstract: 891,994. Slip rings for dynamo-electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 9, 1960 [Sept.. 10, 1959], No.30931/59. Class So. Slip rings for a high-speed alternator rotor 2, each of which comprises an inner ring 8, 11 of comparatively ductile conducting material which is shrunk on to an insulating sleeve 4 on shaft 1 and an outer ring 12, 14 of high tensile strength which has a higher coefficient of thermal expansion, and is shrunk on to the inner ring. The mating surfaces of the rings may be plated with silver or rhodium to reduce interface resistance. The slip ring assembly including insulating spacing rings 5, 10, 13, 15 is clamped between flange 7 and nut 17 which is enclosed by dowel pin 18. Leads A, B brazed to the rings 8, 11 respectively, pass through holes in ring 5, in rings 8 (through bushing 9) and 10.
Patent GB-865909-A (GB)
Title: Improvements in or relating to indicating apparatus for measuring the pressure head or level of liquid relative to a datum level
Inventor: MORE JASPER
IPC: G01F23/16
Filed: 1957-10-03
Abstract: 865,909. Valves. DOBBIE McINNES Ltd. Dec. 29, 1958 [Oct. 3, 1957], No. 30954/57. Class 135. [Also in Group XIII] In liquid-level indicating apparatus for measuring, e.g., the liquid level 7 relative to a " zero " datum line in a tank 3 and comprising primary and secondary stand-pipes 1, 10 which can be supplied with compressed air or gas to balance respectively the overall on a fraction of the pressure-head of the liquid, and which are associated respectively with low and high sensitivity manometers 4, 11 whose readings are aggregated to give an accurate level reading (see Group XIII), the secondary stand-pipe 10 consists of a series of detachably interconnected pipes 20 having lower, downwardly-directed branch-pipes 21 which terminate in port openings 21A closable by valves 24 influenced by floats 29. Each port opening 21A is formed through a plastic sleeve 23 which is carried in a metal bushing 25 screwed into the lower end of the corresponding branch pipe 21 and has its upper end moulded to form a valve seating 23A for an associated valve member 24, the stem 25 of which extends through the sleeve 23 and is connected to a lower extension 26 passing through an opening 42 in a cross-piece 41 and carrying a weight 28. An open-bottomed cylindrical float 29 is supported for vertical reciprocating movement on a guide-rod 32 carried at its lower end by a horizontal bracket 33 clamped by a bridgepiece 34 to the branch-pipe 21 and the pipe 20. The cross-piece 41, connected by rods 38 to the float 29 and guided in sleeves 40 in the bracket 33, is engageable by a collar 43 on the stem extension 26 to effect snap opening of the valve 24 upon upward movement of the float 29. Lines 44, Fig. 7, enable the lifting of chosen floats to allow the passage of cleaning medium. Specification 865,908 is referred to.
Patent GB-154078-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F3/02
Filed: 1919-12-10
Abstract: 154,078. Powell, A. D. Dec. 10, 1919. Jacks. - Lifting- jacks, of the kind in which the raising is effected by mechanical means and the lowering by fluid-pressure, are provided with ratchet gearing, either with or without rack and pinion gearing, for raising the jack and l o c k i n g controlling- means for the lowering device. The plunger 5, Fig. 1, is formed with ratchet teeth 10 and is raised by the operation of a handle 14, the handle-socket 11 carrying a spring-pressed pawl 9. By slightly withdrawing the handle, the pawl is freed from a stop 17 which permits a cam 18 on the handle-socket to depress a plunger 19 which opens the non-return valve 21 and allows the oil to escape from under the plunger 5, which then descends.. In a modification, the pawl 30, Fig. 9, rotates a ratchet wheel 25 carrying a pinion gearing with rack teeth on the plunger 5. By. withdrawing the handle 14 from the upper socket 26 and inserting it into the lower socket 34, a cam 18 on the lower socket opens a slide valve 19 to release the oil. A separate non-return valve 21 may be provided for admitting the oil into the cylinder in either form of the invention, and the construction shown in Fig. 1 may be provided with ratchet wheel mechanism similar to that shown in Fig. 9.
Patent GB-747110-A (GB)
Title: Improvements in and relating to the production of mica splittings
Inventor: PARSONS AUBREY LACEY
IPC: C04B14/20
Filed: 1953-11-10
Abstract: 747,110. Mica. ENGLISH ELECTRIC CO., Ltd. Nov. 5, 1954 [Nov 10, 1953], No. 31087/53. Class 70 Mica splittings are purepared by heating mica to a temperature sufficient to remove the water of constitution, mixing the heated mica with a cold liquid so that the latter is absorbed along the cleavage planes of the mica, and vibrating the mixture at a supersonic frequency to cleave the mica into thin flakes. Muscovite mica is heated to about 800‹C., and phlogopite mica to about 1100‹C., for 20 to 40 minutes, and whilst, still hot is plunged into cold water. The mixture of mica and water is then placed in a vessel 2 and subjected to supersonic vibrations generated by a piezo-electric crystal 3 immersed in oil in a surrounding vessel 5. Alternatively the mixture of mica and water is subjected to supersonic vibrations whilst in flow through a pipe, piezo-electric crystals being arranged around the pipe at one or more point or points.
Patent GB-691335-A (GB)
Title: Improvements in or relating to methods of making luminescent screens
IPC: C30B13/08
Filed: 1950-12-21
Abstract: 691,335. Luminescent screens. LEITZ GES., E. Dec. 21, 1950 [Dec. 27, 1949], No. 31095/50. Class 39(i). A method of making a mono-crystal luminescent screen comprises depositing the matrix on an auxiliary plate 1 in a vacuum, and enforcing the growth of the crystal simultaneously with or subsequently to the deposition, e.g. by using a mask 2 with a narrow slot 5 which broadens towards the uncovered portion of the plate, a heated platinum 3 wire being moved along the centre line with a speed smaller than or equal to the speed of crystallization. In one example, potassium bromide is evaporated in vacuum on to a plate of orthoclase (potassium feldspar) heated to 350‹C, the deposit tempered for several hours and activated with thallium. Zinc sulphide is evaporated on to a rock salt plate, activated at 350‹C with lead or copper the plate cemented to glass and the rock salt dissolved away. Another screen is obtained by evaporating rock salt on to glass, activated with silver. Materials suitable as matrices are alkaline and alkaline earth halides and sulphides of zinc, gadolinum and manganese, the activators being Ag, Cu, Th, K, Rb, Mg, Ni, Pb, Sr, Ba, Y and other rare earth metals.
Patent GB-1081949-A (GB)
Title: Improvements in cosmetic mask
Filed: 1965-07-22
Abstract: A cosmetic mask composition comprises an aqueous alcoholic mixture comprising a film-forming hydrocolloid gum and a cellulosic fibrous material.  Specified gums are gum arabic, tragacanth, carrageenan, sodium carboxymethyl cellulose, and methyl and hydroxypropyl cellulose ethers.  The fibrous material may be wood or paper pulp. The composition may also include non-ionic and cationic surface active agents (e.g. sodium lauryl sulphate and ethoxylated fatty alcohols and acids), humectants, oils, skin bleaches, depilating agents, rubefacients, and medicaments (e.g. nicotinic acid, and liquid fraction of lanolin).
Patent GB-932558-A (GB)
Title: Improvements in or relating to electric heaters
IPC: H05B3/14
Filed: 1959-09-14
Abstract: 932,558. Electric heating elements utilizing dielectric heating. ELECTRICITY COUNCIL, and G. T. WRIGHT. Aug. 22, 1960 [Sept. 14, 1959], No. 31285/59. Class 39 (3). An electric heater comprises an element of ferro-electric material 10 arranged between electrodes 11, and power supply means (not shown) arranged to supply an alternating potential at a frequency less than 100 c.p.s. to the electrodes through leads 12 to produce an alternating electric field in the material. The material 10 may be a plate of a sodium-lead niobate ceramic or barium titanate made by pressing, casting or extrusion from powdered materials followed by sintering, and the electrodes 11 may be formed by a painted or sprayed layer of colloidal graphite or silver paint or by a coating, containing organo-metallic compounds, which is fired after drying to decompose the compounds leaving a metallic conductive layer. The external faces of the electrodes 11 and preferably the other external surfaces of the heater are coated with insulating material 13. A number of thin sheets of ferro-electric material and electrodes may be sandwiched together with alternate electrodes connected to opposite poles of the supply source, or a tubular ferro-electric member may have electrodes formed on its inner and outer surfaces (Figs. 2 and 3, not shown). The heater may be used to heat gases or liquids or for the direct heating of floors when owing to its leading power factor it may also be used for power factor compensation, e.g. in a factory.
Patent GB-1020454-A (GB)
Title: Improvements in or relating to anchors
Inventor: POMMEE LOUIS FRANCOIS JOSEPH
IPC: B63B21/44
Filed: 1962-08-16
Abstract: 1,020,454. Anchors. KONINKLIJKE NEDERLANDSCHE GROFSMEDERIJ N.V. Aug. 16, 1962, No. 31397/62. Heading B7S. A stockless anchor comprises a shank 1, Figs. 1 and 3 (not shown), and an anchor head hingedly connected thereto at one end, the anchor head comprising crown plates 10 and 11 hingedly connected to the shank and flukes 4 and 5 fixedly mounted on the crown plates, the effective area of the crown plates being substantially 75% of the effective area of the flukes, and the flukes being straight-sided.
Patent GB-168806-A (GB)
Title: A new or improved trousers press
IPC: A47G25/72
Filed: 1920-11-06
Abstract: 168,806. Heath, S. G. Nov. 6, 1920. Trouser-presses.-The upper and lower boards a, b are pressed together by cam-levers e, f. The pivot g of each cam lever is restrained by a vertical slot k<2> and, when the trousers are being pressed, is engaged by one of a series of notches v<2> in a plate v having a shank u passing through a rectangular aperture at the end of a rod t. The rod t is pressed upwards at each end by a spring w on the end of the shank u and carries cams engaging flat springs on the under surface of the bottom board. The boards a, b are hinged together by plates d pivoted to each other and to plates on the boards, so that the boards may remain parallel when several pairs of trousers are inserted in the press. Reference has been directed by the Comptroller to Specifications 10471/95 and 141,557.
Patent GB-160006-A (GB)
Title: Improvements in metal shovels with tubular metal handles
IPC: B25G3/28
Filed: 1919-12-17
Abstract: 160,006. Rayner, G. H. T., and Rayner, P. Dec. 17, 1919. Hollow handles; fixing by sockets, tangs, and the like. - Metal shovels, forks, and like tools with tubular handles are so formed that the blades can be readily detached by means of wedges when worn out, and new blades substituted. The blades a are connected directly to the tubular handle b by means of a wedge c which acts to secure a wedge-shaped shank a' of the blade in the end of the handle b, or in a reinforcing-sleeve of metal having a bore of angular, oval, or round cross-section. In a modification, a wedge e, Fig. 4, of rectangular cross-section is wedged between the flange a', and a wedge d arranged in the handle b. In modifications the blade is secured to the handle by the aid of an intermediate socket piece which is secured to the handle by riveting &c. In one form of this construction, as shown in Figs. 9 and 11, the socket member f may be formed with an inclined part f<2> to receive the tang a' and a securing-wedge c, the tang in this case being formed with chamfered edges, and the socket f<2> with inclined bottom portions f<3> as shown. To prevent loss of the wedge c it may be formed with an enlarged end c' of greater width than the socket, and with a cross pin g which is received into slots f<4> of limited length in the upper parts of the socket f<2>. Transverse wedges may be used for securing the tools in sockets as f<2>.