baber/WOPTO huggingface dataset:
Patent GB-647365-A (GB)
Title: Improvements in or relating to microscopes
Inventor: EYRE EDWARD ERNEST
IPC: G02B21/00
Filed: 1948-05-05
Abstract: 647,365. Rectilinear motion bearings. WATSON & SONS, Ltd., W. May 5,1948, No. 12436. [Class 12 (i)] [Also in Group XX] To prevent jamming of the middle slide of a microscope connected for vertical sliding movement to a supporting limb by a dove-tailed tongue and groove, due to the overhanging weight of the optical elements, a tension-spring acts between the slide and limb on the upper end of the dovetailed connection in opposition to the turning moment exerted by the said weight. As shown in plan the top of the dovetailed objective slide 11 is drawn towards the supporting limb 17 by a tension-spring 13 located in a slot 18, while the bottom of the slide may be pressed in the opposite direction by one or more compression springs 21 housed in recesses 22 in the limb and pressing balls 23 against the slide. Alternatively the springs 21 may engage recesses in the slide 11 and be free to move vertically in grooves in the limb, rods being inserted in the springs to maintain them straight.
Patent GB-577630-A (GB)
Title: Improvements in and relating to couplings for transformers
IPC: H01F17/04
Filed: 1944-06-30
Abstract: 577,630. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. June 30, 1944, No. 12463. Convention date, July 2, 1943. [Class 38 (ii)] In a radio frequency transformer which comprises windings in separate recesses of a magnetic body member, the mutual inductance is varied by the movement of a continuous conducting loop encircling the windings and outside the body member. Two, windings, a primary 13, and a secondary 14 are mounted on formers 21 inside recesses 11, 12 in a body member 10 of powdered iron. Into each winding passes a core 15, 16 the positions of which may be varied by rotation, screws 42, 43 giving longitunal movement in conjunction with nut 40 41 mounted on an insulating board 35 which carries winding terminals 38. A single turn 47 of conductive material such as copper or aluminium surrounds the outside of the body member and its position may be varied up or down. This turn acts as a coupling link to increase the mutual inductance between the windings 13, 14 which mutual inductance is varied by a change in the position of link 47, being a maximum when the link is central. In a modification, in place of the link 47 the body member is completely enclosed in a shield of copper or aluminium except for a vertical slot in one side which may be filled with solder to any extent to determine the value of mutual inductance, Fig. 3 (not shown). The mutual inductance may vary over a range of 2:1 while the self-inductances of the individual windings, which are adjusted by moving the cores 15, 16 vary by less than 10 per cent.
Patent GB-311272-A (GB)
IPC: H01M4/08
Filed: 1929-04-22
Abstract: 311,272. I. G. Farbenindustrie Akt.- Ges. May 8, 1928, [Convention date]. Electrodes.-In order to obtain a depolarizing mixture consisting of manganese dioxide and graphite in which the particles of both substances are of the same size approximately, the manganese dioxide and graphite are ground together in a mill. The constituents need not be mixed together in the final proportions, and a further quantity of either may be added after the grinding. A certain quantity of soot may be added at any stage of the, process. The manganese dioxide may be obtained from manganese carbonate residues as described in Specification 311,271, [Class 1 (iii), Oxides &c., Metallic].
Patent GB-1038985-A (GB)
Title: Method and apparatus for hot pressure forming and back extruding
IPC: B21C23/20
Filed: 1963-03-29
Abstract: 1,038,985. Extruding; forging; working at specified temperatures. BRUSH BERYLLIUM CO. March 29, 1963 [March 29, 1962], No. 12492/63. Headings B3H, B3P and B3V. In the backward extrusion of a hot metal billet, particularly of beryllium or beryllium rich alloy, the back flow is restricted. The billet 53, Fig. 12 (not shown), may be enclosed in a mild steel jacket 54 surmounted by a mild steel restraining ring 55 which is backwardly extruded with the billet and restricts its back flow. Ring 55 may be loose or welded to the jacket 54 and co-operates with the tapered nose 52 of the ram to restrict backward movement of the ring and hence of the billet metal. A vent may be provided in the jacket for release of gases and the billet may be coated with a parting agent prior to jacketing. After extrusion of the billet into a cup 59, Fig. 14 (not shown), the ring has been deformed into a flange 61 and flattened by ram face 57. A cupshaped beryllium workpieee may then be formed by washing and pickling the extruded workpieee and then machining along lines 63. The press, Fig. 1 (not shown), is actuated by a pair of hydraulic motors 5 supplied through valve V by pump P. In another embodiment, Figs. 2-4 (not shown), the billet is unsheathed, and in further embodiments, Figs. 5, 6, 10, 11 (not shown), the ring may be replaced by a disc having a depression to receive the hemispherical end of the ram; the die cavity also has a hemispherical end. The ram may have a substantially cylindrical nose with an enlarged end. Figs. 8, 9, 17, 18 (not shown), and in the latter embodiment, the restraining ring forms part of a jacket enclosing the billet. In a further embodiment, Fig. 19 (not shown), the die has a split liner 87 retained by a ring 94 and having a tapered bore which co-operates with an oppositely tapered ram 89 to restrict upward movement of the ring 91. Reference is made to the forming of beryllium at 1500 F.
Patent GB-903951-A (GB)
Title: Process for the manufacture of thiophenecarboxylic acids and their esters
Filed: 1959-04-13
Abstract: Compounds of the formula <FORM:0903951/IV (b)/1> where R1 is hydrogen or alkyl containing 1-4 carbon atoms, R2 is hydrogen, alkyl, aryl or acyl, R3 is alkyl, aryl or substituted aryl, or R2 and R3 together represent a tetramethylene chain, and R4 is hydrogen or alkyl containing 1-4 carbon atoms, are prepared by reacting the compound R1COCHR2COR3, or the acetal or a hydroxy- or alkoxymethylene derivative thereof, with thioglycolic acid or an ester thereof with an alkanol having 1-4 carbon atoms, to give a compound <FORM:0903951/IV (b)/2> or <FORM:0903951/IV (b)/3> esterifying with an alkanol having 1-4 carbon atoms if necessary, treating with an alkaline condensing agent such as an alkali metal hydroxide or alcoholate to effect ring closure, and if desired saponifying the thiophene carboxylic acid ester to the free acid. Specified dicarbonyl compounds or derivatives thereof are acetylacetone, butyrylacetone, valerylacetone, benzoylacetone, 3 - methyl acetylacetone, 3-ethyl acetylacetone, 3-butyl acetylacetone, 3-phenyl acetylacetone, a -acetyl propiophenone, a -butyryl butyrophenone, acetylacetaldehyde dimethylacetal, isovalerylacetaldehyde dimethylacetal, hydroxymethylene methyl ethyl ketone, hydroxymethylene diethyl ketone, 1-hydroxymethylene-cyclohexanone-(2), 3-hydroxymethylene heptanone-(4), hydroxymethylene propiophenone, hydroxymethylene - p - methyl - acetophenone, hydroxymethylene - p - methoxy - acetophenone, methoxymethylene acetophenone and ethoxymethylene acetylacetone. Examples prepare the following thiophene 2-carboxylic acids or esters: 3,4-dimethyl-, 3-ethyl-4-methyl-, 3:4-tetramethylene-, 3-phenyl-4-methyl-, 3-p-tolyl-, 3-p-anisyl-, 3-phenyl-, 3-methyl-, 3-isobutyl-, 3-methyl-4-acetyl-, 3,5-dimethyl-, 3,4,5-trimethyl- and 3-phenyl-5-methyl-.
Patent GB-842796-A (GB)
Title: Improvements in crates, boxes, trays or the like for containing bottles, cans or other containers
Inventor: SIM ANDREW BUCHAN
IPC: B65D85/30
Filed: 1958-04-21
Abstract: 842,796. Bottle &c. crates. FIDDES & SON Ltd., W. Oct. 1, 1958 [April 21, 1958], No. 12603/58. Class 18. A crate 1 for bottles, cans &c., is provided with a number of replaceable peg-like wooden separators 5 located within recesses formed in the bottom of the crate and which allow the bottles to be closely packed without touching each other, the separators 5 being tapered at 6 to provide a guide to facilitate the entry of the bottles and forming the sole means for supporting the bottles. The separators 5 may be formed with their lower ends of reduced diameter and which may screw into the recesses in the bottom of the crate or alternatively the lower ends may be tapered so that the separators may be inserted either upwardly or downwardly into the recesses depending on the direction of the taper. They may be secured in place by glue &c. Drainage holes may be provided in the bottom of the crate.
Patent GB-554968-A (GB)
Title: Improvements in or relating to bags for use on cycles, motor-cycles and similar vehicles
IPC: B62J9/00
Filed: 1942-09-08
Abstract: 554,968. Cycle &c. bags. MORGAN, H. V. Sept. 8, 1942, No. 12631. [Class 133] A cycle &c. bag is suspended from the saddle eyelets L or from rings N attached thereto by means of straps K, K<SP>1</SP>, adapted to be buckled together after being passed through the eyelets &c., the connected straps also affording a carrying handle. A strap F adapted to encircle the saddle pillar is provided at the back of the bag.
Patent GB-514126-A (GB)
Title: Improvements in machines for nibbling or punching metal and other sheets
IPC: B23D27/02
Filed: 1938-04-27
Abstract: 514,126. Cutting shaped holes in plates. DESOUTTER BROS., Ltd., and WEBB, G. H. April 27, 1938, No. 12638. [Class 83 (iv)] In a nibbling-machine with a punch 26 reciprocated by a crank 14 from a flexible shaft or an electric, pneumatic or other motor carried in the handle, the rear of the punch has a re-entrant portion 36 guided by a frame member 35.' The punch 26 is secured to a carrier 15 by a screw 27 and the frame member 35 is secured to a member 16 by a nut 17. When the motor is stopped by operation of a switch in the handle the punch is urged to the retracted position by a spring 24. The disc is secured to the member 35 which may carry a small receptacle for the punchings.
Patent GB-623678-A (GB)
Title: Improvements in or relating to containers for dangerous drugs
IPC: B65D55/14
Filed: 1947-05-10
Abstract: 623,678. Permutation locks. WILLIAMS, C. N. May 10, 1947, No. 12716. [Class 44] [Also in Group XVII] The cap of a container, e.g. for dangerous drugs, carries permutation rings co-operating with locking lugs on the container for preventing access to the contents. In the form of Fig. 2, the container 1 has a reduced upper portion 2 over which fits a cap 7 carrying a series of rings 6, the wall of the cap is slotted at 9 to pass a vertical row of lugs 4 projecting for engagement by inner slotted flanges on the rings 6. The rings bear markings by which they are set to the correct positions to align their slots with the row of lugs 4 to release the cap. The rings are retained between a shoulder 10 and a collar 11 pinned to the walls of the cap. In a modification the cap has a skirt extending to the bottom of the container to prevent the lock being picked by " touch." In the form of Fig. 6 the container 23 has an extension 26 with a series of locking lugs 27. The container fits inside a tubular member 30 carrying locking rings 32 having slotted flanges engaging the lugs 27. When the lock is released the container slides out under gravity allowing the contents to be removed through a side hole 29. Alternatively instead of the hole 29 the upper plug 25 may be arranged to screw out to give access to the contents.
Patent GB-659806-A (GB)
Title: Improvements in or relating to electric pulse modulators
Inventor: REEVES ALEC HARLEY
IPC: H03K7/08
Filed: 1947-05-12
Abstract: 659,806. Pulse modulating. STANDARD TELEPHONES & CABLES, Ltd. May 12, 1947, No. 12769. [Class 40 (v)] [Also in Group XL (a)] A pulse time modulator comprises a coldcathode gas discharge tube (see Group XL (a)), with a maintaining potential insufficient to initiate a discharge, applied to the main discharge gap, means for periodically firing the gap at times depending on the signal voltage and means for periodically extinguishing the discharge. In one embodiment, durationmodulated pulses are produced in transformer 6, Fig. 1, connected in series with the main anode 2 and cathode 3 of tube 1. The maintaining potential is applied to anode 2 from source 7 and negative extinguishing pulses (a), Fig. 2, through condenser 15. The firing waveform (b) is applied to an auxiliary anode 4, through circuit 16, 17, and is modified by the signal voltage applied to transformer 12 connected between the anode 4 and a tapping on voltage source 7. If the signal wave (c) is added to waveform (b) the resultant (d) causes the tube to fire at times q, r, s, corresponding to the voltage v3 and the negative going pulses of waveforms (a) and (d) extinguish the tube at the times B, D, F, giving rise to duration modulated current pulses (e) through the transformer 6. Circuit 9, 10 provides negative feed-back of the signal voltage to the signal input circuit for distortion correction. In a modification, Fig. 3 (not shown), a similar circuit produces frequency modulated pulses, the control voltage waves being omitted and both discharge paths being self-squegging, due to the provision of squeg resistances. Specification 659,805 is referred to.
Patent GB-759413-A (GB)
Title: Titanium clad steel and methods of manufacture thereof
IPC: B23K20/227
Filed: 1954-05-03
Abstract: 759,413. Making compound plates; welding by pressure; jointing by rolling. LUKENS STEEL CO. May 3, 1954 [May 7, 1953], No. 12790/54. Classes 83 (2) and 83 (4). In a method of cladding steel with titanium, steel backing plates 5, Fig. 2, formed into hermetically-sealed packs with sheets 11 of titanium having electro-plated deposits of iron or nickel in contact with the steel and the packs are heated while inert gas is pumped through and are finally reduced as by rolling to bond the sheets. The pack is formed with a cover plate 6 of steel, a parting compound 10 such as a dried acqueous suspension of graphite being provided between the cover-plate 6 and the titanium 11. Spacer bars 7 are welded around the edges as at 15 to seal the pack and pipe connections for inert gas such as argon are provided at grooves 14 in the spacer bars 7. The packs are flushed with argon and heated in the range between 1000‹ and 1550‹ F. for approximately one hour per inch of thickness while the flow of gas is maintained. After heating the packs are rolled, pressed or forged to effect a reduction of not less than 20 per cent on the original thickness. In a modification a pack may be formed with two backing plates and enclosing two sheets of titanium placed back to back with an intermediate layer of parting compound. Specifications 759,468 and 759,469 are referred to.
Patent GB-948880-A (GB)
Title: Novel aromatic phosphorus-containing esters and their use in stabilising organic materials
IPC: C08K5/51
Filed: 1962-04-03
Abstract: The invention comprises compounds of formula <FORM:0948880/C2/1> where R is hydroxyl, alkylphenoxy, (preferably C1-24), alkoxy, (preferably C13-24), phenoxy, alkylthio or phenyl; R, is alkylphenoxy, alkoxy, phenoxy or alkylthio; R2 and R3 are each independently alkyl; R4 is hydrogen or C1-6 alkyl; and n is 0,1,2 or 3.  Suitable preparative methods used include reaction of an appropriate hydroxyarylalkyl halide of formula: <FORM:0948880/C2/2> with an appropriate tertiary phosphite, sodium phosphite diester, phosphonite diester or corresponding thio compound, and in the case of compounds where R is hydroxyl, hydrolysis of a diester to give the monoester required. The colour of a number of the products in examples is improved by dissolving them in glacial acetic acid and heating with zinc.  The products are used in stabilising organic materials against oxidative deterioration.  Compounds stabilised include polyolefines, polyhaloolefines and natural and synthetic rubbers (see Division C3) and natural and synthetic lubricants and fatty materials (see Division C5).ALSO:Polymeric materials are stabilized against oxidative deterioration by means of a phosphorus-containing ester of formula: <FORM:0948880/C3/1> where R is hydroxyl, alkylphenoxy, alkoxy, phenoxy, alkylthio or phenyl; R, is alkylphenoxy, alkoxy, phenoxy or alkylthio, R2 and R3 are each independently alkyl; R4 is hydrogen or C1- 6 alkyl; and n is O, 1, 2 or 3 (see Division C2). About 0.001 to about 10% by weight of stabilizer may be used. Substances stabilized include polyolefines, polyhaloolefines, polyisopropylene oxide and the diether and diester thereof and natural and synthetic rubbers. Other additives of the usual types may be present.  In an example, polypropylene powder is blended with various stabilizers of the above formula: and milled into sheet form.ALSO:Lubricating oils, fatty oils and fuels are stabilized against oxidative deterioration by the incorporation of phosphorus-containing esters of formula <FORM:0948880/C3/1> where R is hydroxyl, alkylphenoxy, alkoxy, phenoxy, alkylthio or phenyl, R1 is alkylphenoxy, alkoxy, phenoxy or alkylthio, R2 and R3 are each independently alkyl, R4 is hydrogen or C1- 6 alkyl and n is 0, 1, 2 or 3 (see Division C2).  About 0.001 to about 10% by weight of stabilizer may be used.  Substances stabilized include aliphatic esters, polyalkylene oxides, silicones, esters of phosphoric and silicic acids, highly fluorinated hydrocarbons, gasolines, jet fuels, diesel oils, mineral oils, greases, cutting oils, and fatty materials, e.g. animal and vegetable oils. Conventional additives may also be present.  In an example, a mixture of trimethylol propane esters of acetic, n-valeric, branched C6, pelargonic, caprylic and other acids is stabilized with various esters of the above formula.
Patent GB-117530-A (GB)
Title: Improvements in Roller Blinds.
Inventor: BENNET ARCHIBALD
IPC: E06B9/90
Filed: 1917-09-07
Abstract: 117,530. Bennet, A., and Reid, T. H. Sept. 7, 1917. Roller-blinds, spring.-Overwinding of a spring- roller blind is prevented by a spring 7 compressed between one end of the roller 8 and' a non-rotating nut 4 which engages the screw-threaded part 3 of the roller end pintle. Rotation of the nut is prevented by arms 5 engaging the bracket 6.
Patent GB-603094-A (GB)
Title: Improvements in the manufacture of cartons and carton blanks
IPC: B65D5/56
Filed: 1945-05-23
Abstract: 603,094. Coated paper board. ABBEY. A. (DEWEY & ALMY CHEMICAL CO.). May 23, 1945, No. 12929. [Classes 96 and 140] [Also in Group XVII] A blank for an inside-coated moisture impervious carton is cut from stock coated on at least one entire surface with a tough. ductile, cohesive coating which is adhesive when heated so as to have flaps which are overlapped to secure the parts of the carton together. A coating compound comprising 80 parts micro-crystalline wax (10 parts butyl rubber, and 10 parts polyethylene resin is given as example. The coating is applied of a thickness of at least .001 in., and preferably not more than .004 in. The stock may comprise board of from .008 in. to .05 in. thickness. Specifications 455.641 and 481,427 are referred to.
Patent GB-1591703-A (GB)
Title: Fixation of radioactive materials in a glass matrix
IPC: G21F9/00
Filed: 1978-04-03
Abstract: The new nonporous glass composition contains a radioactive material in the form of oxides or elements which is embedded and immobilised in the glass matrix. The said composition contains at least 75 moles per cent of SiO2, in addition to a radiation activity higher than 1 millicurie per cm<3> of the composition and a high chemical durability in aqueous solution. The composition may be in the form of a glass article showing an outer enclosure or glass skin comprising at least 90 moles per cent of SiO2 and substantially free from radioactive material, and an inner core formed by the said composition. The composition is used for binding radioactive materials. The attached figure is a graphic representation of the fraction of waste released into the environment after 20,000 years' storage. <IMAGE>
Patent GB-374522-A (GB)
Title: Mechanical stokers for locomotives
IPC: F23K3/04
Filed: 1931-02-11
Abstract: 374,522. Mechanical stokers. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Lower Stoker Co. ; Wabash Building, Pittsburg, U.S.A.) Feb. 11, 1931, No. 12959/32. Divided on 372,800. [Class 51 (i).] In a mechanical stoker for a locomotive including a fuel elevating conduit containing a screw conveyer and at the forward end communicating with an opening 5 in the locomotive backhead 4, the forward portion 12 of the elevating conduit is formed as a spout whose upper and lower boundaries are each curved in the form of an upwardly convexed arch, the underside of the arch forming the lower boundary being substantially higher than the fuel distributing table 68. As the fuel falls from the outlet 67 of the conduit on to the table 68 it is distributed by steam from jets 79 in communication with passages 80 in the bottom of the conduit and supplied by pipes 81. The construction of the stoker is as described in Specification 373,800.
Patent GB-166008-A (GB)
Title: A device for use in supporting and fastening standard rose & young fruit trees to stakes
IPC: A01G17/12
Filed: 1920-05-11
Abstract: 166,008. Williamson, H. May 11, 1920. I'lants, supporting and training.-To secure young fruit trees &c. to stakes, a strip of aluminium formed at one end with a tongue and towards the other end with three transverse slots is passed round the stem of the tree and attached by passing the tongue through the most suitable slot. A nail-hole is formed in the end of the strip remote from the tongue for a nail by which the strip is secured to the stake. Reference has been directed by the Comptroller to Specification 23756/08.
Patent GB-593099-A (GB)
Title: Transmission lines
IPC: H01P7/00
Filed: 1945-05-24
Abstract: 593,099. Transmission lines. MAR CONI'S WIRELESS TELEGRAPH CO., Ltd. May 24, 1945, No. 13062. Convention date, April 20, 1944. Drawings to Specification. [Class 40 (iv)] [Also in Group XL] A high-frequency transmission line having low characteristic impedance and yet maintaining sufficient distance between wires to prevent flash-over comprises a pair of paths each including a plurality of wires in parallel. In the case of an unbalanced transmission line, the high potential path consists of two parallel wires in a horizontal plane situated above two earthed wires which constitute the return path the cross sectional configuration being an isosceles trapezoid. The lower wires are spaced further apart than the upper wires so that very few lines of force from the latter terminate on the earth's surface, whereby losses due to the earth's resistance are small. An embodiment of the invention for use in a balanced transmission system consists of four equally spaced wires in the same horizontal plane, the first and third wires in parallel constituting one path and the second and fourth wires, in parallel, constituting the other path.