baber/WOPTO huggingface dataset:
Patent GB-1037654-A (GB)
Title: Acetyl diketones and their production
IPC: C07C49/67
Filed: 1964-05-14
Abstract: Polyketones containing the grouping <FORM:1037654/C2/1> are obtained by reacting isopropenyl acetate with an anhydride or a halide of a carboxylic acid in the presence of a Lewis acid catalyst. Reaction of isopropenyl acetate with an anhydride or halide of a monocarboxylic acid yields acyclic products, but cyclic products are obtained from an anhydride or halide of a dicarboxylic acid, provided that the latter can be cyclisized. The preferred catalyst is aluminium chloride, but the use of titanium tetrachloride is also mentioned. Examples are given in which isopropenyl acetate yields (1) 2-acetylcyclopentane-1,3-dione by reaction with succinic anhydride or succinyl chloride, (2) 2-acetylcyclohexane-1,3-dione by reaction with glutaric anhydride, (3) 2-acetyl-4-methylcyclopent-4-ene-1,3-dion by reaction with citraconic anhydride, (4) 2-acetyl-indane-1,3-dione by reaction with phthalic anhydride, (5) triacetylmethane by reaction with acetic anhydride, (6) 2-acetylcycloheptane-1,3-dione by reaction with polymerized adipic acid anhydride, (7) 2 - acetyl - 4 - methylcyclopentane - 1,3 - dione by reaction with methylsuccinic anhydride, (8) 2-acetyl-4,4-dimethylcyclopentane-1,3-dione by reaction with a ,a -dimethylsuccinic anhydride, (9) 2-acetylcyclopent-4-ene-1,3-dione by reaction with maleic anhydride, (10) 2-acetyl-4-chlorocyclopent-4-ene-1,3-dione by reaction with chloromaleic anhydride, and (11) 2-acetyl-4,5-dimethylcyclopent-4-ene-1,3-dione by reaction with dimethylmaleic anhydride.  In Example 2, some cyclohexane-1,3-dione is obtained as a by-product.  The products of Examples 3,9 and 11 are purified by way of their copper salts. The products of Examples 3, 6, 7, 8, 9, 10 and 11 are claimed as new compounds.
Patent GB-916370-A (GB)
Title: Improved anti-splash accumulator plug
IPC: H01M2/12
Filed: 1960-06-08
Abstract: 916,370. Battery screw plugs. COMPAGNIE GENERALE D'ELECTRICITE. June 8, 1960 [June 8, 1959], No. 20218/60. Class 53. A helical channel is created by a central core 6, the plug 1 and a helical bridging piece 8 and the gases leaving the accumulator escape via this channel, depositing entrained electrolyte. If desired, the plug 1 may be porous to absorb the electrolyte drops. A sealing-ring 3 is provided.
Patent GB-353660-A (GB)
Title: Improved connector or sleeve for electric cables
IPC: H01R4/18
Filed: 1930-07-04
Abstract: 353,660. Sleeve couplings. DUNN, H. A., 32, Newington Causeway, London. July 4, 1930, No. 20297. [Class 38 (i).] A jointing connector for cables is constructed from a metal blank by making parallel slits 12 in two opposite edges, bending the blank to U-form and, after inserting the cable ends 14, bending over the fingers 13 in pairs in turn. The slits may be at an angle to the edges, or may be staggered on opposite sides of the U-shaped bank. The fingers formed by the slits may have saw-tooth edges or may be alternately long and short on each side.
Patent GB-159236-A (GB)
Title: Improvements in methods of and means for delivering substances in a fine or loose state of division or of the nature of flour and the like
IPC: B65G65/44
Filed: 1919-08-19
Abstract: 159,236. Redler, A. Aug. 12, 1919. Storage chambers, emptying from below.-In delivering flour or other substance in a granular, flocculent or fine state of division from the bottom of a bin in which it is stored in bulk, the flour is detached by chain-like members which act on the undersurface of the bulk. In the form shown, an inclined false bottom formed by spaced cross-members d is supported by metal plates c within a bin having sides a and bottom b. On the inclined false bottom d and bottom b a continuous flexible chain-like grid f moves passing over sprocket wheels g, h, driven in any manner. A dead plate m rests on the lower reach of the grid f and a trough p with a discharge worm q is provided to receive the detached flour. The rate of discharge from the bin is controlled by a hand regulator n. The chain-like grid may be provided with teeth, spikes or cutting edges which disturb the bottom of the bulk of the material so that portions are detached and fall in a fine state of division between the bars d on to the lower run of the grid by which the material is carried along the bottom of the bin to the trough p. Live lands k may be provided to assist in supporting the mass. The bottom of the bin may be apertured so that the detached material may fall directly into the receptacle. In a modification an endless grid travels on a false bottom provided with apertures adapted to be closed by a reciprocating hit-and-miss regulator. In another modification the chain-like grid is supported on rollers instead of beams. The discharging apparatus may be formed integral with the bin or may be selfcontained and adapted to be fitted into the bottom of existing bins. In one Provisional Specification it is stated that the device may be applied to delivering coal, lime, sawdust and the like.
Patent GB-1409330-A (GB)
Title: Electric light-emitting apparatus
IPC: G09F9/33
Filed: 1973-04-30
Abstract: 1409330 Light-emitting arrangements MATSUSHITA ELECTRONICS CORP 30 April 1973 [2 May 1972] 20471/73 Heading F4R [Also in Division G5] A light-emitting apparatus, e.g. a sevenelement numeral indicator for electronic calculators, comprises an electrically conductive substrate 2 having a number of recesses 3 therein each having a flat floor 31, smooth reflecting sidewalls 32 perpendicular to the floor and an oblique roughened surface 6 which is diffusely reflecting disposed at an obtuseangle α to the floor 31, alight-emitting diode 4 being secured and electrically connected to the floor of each recess with a wire 10 connecting the second electrode of each diode to a connecting tab 9 on an insulating substrate 1 and wherein a transparent resin 5 surrounds each diode and fills the recesses 3. The P-N junction 11 of the diode is preferably parallel to the recess floor and the resin layer 5 acts as a light guide so that with the sidewalls 32 being reflecting the only light emitted is that diffusely reflected from the surface 6 which is preferably at an angle of 135-145 to the recess floor. The recesses may be formed by pressing an aluminium substrate, alternatively the conductive substrate may be formed by vapour-depositing an aluminium layer on an appropriately recessed insulating board. An opaque resin mask with slots corresponding to the oblique surfaces 6 may be disposed over the device to enhance the definition of the light emitted.
Patent GB-663084-A (GB)
Title: Side tipping trailer structure
IPC: B60P1/06
Filed: 1948-08-03
Abstract: 663,084. Tip wagons. ATHEY PRODUCTS CORPORATION. Aug. 3, 1948 [Aug. 27, 1947], No. 20474/48. Class 108(i) [Also in Group XXV] A side tipping trailer comprises an underframe including longitudinally extending side beams, supporting wheels at one end of the under-frame and carried by an axle secured to said side beams, an open top body of a width greater than that of the under-frame, said body having ribs extending along the bottom thereof and spaced for alignment with said side beams through which the load of the body is normally carried on the side beams, selectively operable hinges having fixed portions or parts connected to the sides of the body in alignment for engagement with the fixed portions or parts so that the body may be tipped to either side relative to the underframe. said hinges having a clearance between the inter-engaging surfaces thereof when the body rests in the normal horizontal position. The trailer comprises an underframe 12 supported at one end by a pair of wheels 13 and at its other end by a gooseneck element 14 formed with a tractor conmeting swivel attachment 15. The frame 12 comprises channel-section beams 23, 24 connected at the rear end by a cross beam 25 and at the forward end by the gooseneck 14 and a series of intermediate polygonal section tubes 26, 27, 28, 29. The wheels 13 are mounted on an axle 30 which penetrates the webs of the beams 23, 24. Plate pedestal fittings 44, 45 welded to the outer faces of each channel 23, 24 respectively each support a hinge bracket 79 formed on its upper surface with a U-shaped opening to provide a seating surface for a hinge roller freely mounted on a shaft 107 secured in a pair of spaced plates 78, each welded to a side of one of a plurality of rectangular section hollow reinforcements 69, 70 welded to the side plates 53, 54 of the body. The floor of the body comprises a plate 52 welded to the lower extremity of side plates 53, 54 the inner margins of which are flanged down at 58, 59 to form with longitudinally extending angle section members 60, 62 a pair of tubular ribs. The outer edges of each plate 53. 54 are reinforced by ribs 65, 66 and each end plate 72 is similarly reinforced by members 74. 76. In the position shown by 17 in Fig. 3 the body is supported on the frame 12 by resilient pads 63, 64 so that the hinge rollers are not in contact with the brackets 79. To tip the body to either side of the frame as shown at 17a in Fig. 3 cam action locking catches, manually operated by levers 94, urge the hinge rollers into contact with the brackets 79 on the side to which the body is to be tipped and similar catches on the opposite side of the body are operated to release the appropriate rollers so that the body may be raised on that side by means of an external lifting cable arranged to engage hook bars 114, 115 secured to the under-surface of the side plates 53, 54. Chains 116, secured respectively to the body and a frame cross member limit the tipping movement on either side.
Patent GB-345596-A (GB)
IPC: C10G17/02
Filed: 1930-07-07
Abstract: To remove sulphur as completely as possible from hydrocarbon oils or petroleum fractions without loss of the constituents valuable in motor fuels, the oil, e.g. a pressure distillate, is treated first at atmospheric temperature with a dilute acid, such as sulphuric acid containing 31 per cent H2SO4, and then at a substantially lower temperature such as 15 DEG -20 DEG  F. with a concentrated acid, such as sulphuric acid containing 97,4 per cent H2SO4.  The oil may be further treated with the concentrated acid at a higher temperature such as atmospheric temperature.  The refined oil is distilled with steam and fractionated.
Patent GB-918230-A (GB)
Title: Improvements relating to pressure vessels
Inventor: WORLEY NORMAN GEORGE
IPC: F22G3/00
Filed: 1958-06-26
Abstract: 918,230. Nuclear reactors. BABCOCK & WILCOX Ltd. June 26, 1959 [June 26, 1958], No. 20516/58. Class 39 (4). In a pressure vessel adapted to operate at elevated temperature and supported from below by a skirt rigidly united with the pressure vessel, provision is made for maintaining, through heat derived by the skirt from the vessel including heat derived by the skirt by conduction and additional to that derived by conduction through the joint between them, a relatively low temperature gradient along a length of skirt extending from the joint to reduce stresses caused by temperature gradients. In one arrangement, Fig. 2, six series of aluminium plates 31-36 are bolted at each end to the plates 4, 5 of the pressure vessel and the skirt 27 to conduct heat to the skirt. The outer series of plates 31, 34 may be lagged with heat insulating material as far as the dotted lines 41, 42. According to the Provisional Specification a series of metal plates may be secured to the pressure vessel by lugs welded to the plates and to the vessel, and extend close to the skirt to form an enclosed radiation space so that the skirt is heated by radiation from the vessel.
Patent GB-881479-A (GB)
Title: Method and apparatus for finishing gears
IPC: B23F19/05
Filed: 1958-03-28
Abstract: 881,479. Gear finishing. NATIONAL BROACH & MACHINE CO. March 28, 1958 [May 27, 1957], No. 20523/61. Divided out of 881,478. Drawings to Specification. Class 83 (3). A method of honing a gear comprises rotating the gear in mesh with a gear-like honing tool, applying a substantially constant force acting between the gear and tool in a direction to urge radial approach therebetween and opposing radial separation between the gear and tool with a force substantially greater than the force urging radial approach thereto. The machine used is as described in Specification 881,478.
Patent GB-1040690-A (GB)
Title: Emulsion polymerization in the presence of selected mercaptan modifier
Inventor: URANECK CARL ADAM
IPC: C08F36/04
Filed: 1965-05-14
Abstract: A process for producing elastomeric polymers which comprises polymerizing in an aqueous emulsion at least one conjugated diene containing four to twelve carbon atoms, or mixtures of at least one such conjugated diene and at least one monomer containing a vinylidene group in the presence of an open-chain saturated mercaptan containing 8 to 10 carbon atoms or an unsaturated cyclic mercaptan containing from 10 to 12 carbon atoms and one or more olefinic bonds in non-conjugated arrangement and separated by at least two carbon atoms, the mercaptan having a solubilization rate, in an aqueous soap solution of 2.5 to 3.0 weight per cent, of at least 19 x 10-4 g./cm.2/hr. and a depletion rate during polymerization such that not more than 15 weight per cent of the total mercaptan is unreacted at 40% monomer conversion, at least 60% of the mercaptan being introduced at the beginning of the reaction and the remainder being added in one or more increments after about 7% monomer conversion and before 40% conversion.  Specified mercaptans are tert.-octyl, tert.-nonyl, 2-nonyl, 4-nonyl, tert.-decyl, 2-decyl, 5-decyl, 4-cyclodecenyl and cyclododecadienyl mercaptans.  The elastomers may be polymers of butadiene, isoprene, 2,3-dimethyl butadiene, piperylene, 2-methyl-hexadiene, chloropene, methoxy butadiene and cyanobutadiene or their copolymers with styrene, 3-vinyl toluene 1- or 2-vinylnaphthalene, 3-methylstyrene, 2-methyl-5-vinyl-pyridine, acrylonitrile, methylacrylate or methyl vinyl ether.  The usual emulsifiers, catalysts &c. may also be present.
Patent GB-133537-A (GB)
Title: Collapsible Box.
Inventor: MAIR ROBERT BEVERIDGE
IPC: B65D6/00
Filed: 1918-12-11
Abstract: 133,537. Mair, R. B. Dec. 11, 1918. Prizing-tools; pliers.-In order to facilitate the application of clamps A to the edges of boxes during their manufacture, the clamps are sprung open slightly by levers L engaging holes in the clamps. In another arrangement, a number of hooks &c. are inserted in holes formed at intervals in the sides of the clamping-members A, the hooks being connected together so that they are all operated at the same time by a pair of levers.
Patent GB-1034037-A (GB)
Title: Fluorescent glass spheres
Inventor: BROWN CARL FREDERICK
IPC: C03C12/00
Filed: 1964-05-19
Abstract: Transparent, luminescent, glass spheres less than 50 mil diameter, preferably having a refractive index greater than 1.9, are made by incorporating 0.1-0.4 w/o.  UO3 is the glass. The spheres may be embedded in a reflective binder to form highway markers, the retention of spheres in the marker after use being readily detected by exciting and measuring their fluorescence. Glass compositions given are (weight per cent):  SiO2 71-73, Na2O 12-15, CaO 8-10, MgO 1.5-3.5, Al2O3 0.5-1.5, UO3 0.1-0.4; TiO2 27-46.2, BaO 33.2-62.2, B2O3 3.7-19.1, ZnO 0-16.5, Na2O 0-0.1, UO3 0.1-0.4; and a glass prepared from the following mix (parts by weight):  TiO2 35.0, Ba(NO3)2 96.7, H3BO3 Na2UO4 0.5.ALSO:Transparent luminescent glass spheres less than 50 mil diameter, preferably having a refractive index greater than 1.9, are made by incorporating 0.1-0.4 w/o UO3 in the glass. The spheres may be embedded in a reflactive binder to form highway markers, the retention of the spheres after use being readily detected by exciting and measuring their fluorescence. Glass composition given are (weight per cent): SiO2 71-73, Na2O 12-15, CaO 8-10, MgO 1.5-3.5, Al2O3 0.5-1.5, UO3 0.1-0.4; TiO2 27-46.2, BaO 33.2-66.2, B2O3 3.7-19.1, ZnO 0-16.5, Na2O 0-0.1, UO3 0.1-0.4; and a glass prepared from the following mix (parts by weight) TiO2 35.0, Ba(NO3)2 96.7, H3BO3 11.6, ZnO 1.5, Na2UO4 0.5.
Patent GB-137774-A (GB)
Title: Improvements in and applicable to twist lace machines
IPC: D04C5/04
Filed: 1919-08-22
Abstract: 137,774. Stroud, A. E. Aug. 22, 1919. Weft threads, inserting.-Weft threads 5, 6 are introduced between the warp threads 3 and the bobbin threads 2 by means of tubes or needles 8, 9 traversed in an approximately horizontal direction by a jacquard &c. The weft carries 8, 9 extend beyond or up to the top of the bobbins 1 and draw threads from spools 7. The carriers are mounted in sliding bars 11 connected to a jacquard either directly or through a multiplying linkage. In a modified form, carriers 18 pivoted at 19 are connected at 21 to a jacquard-controlled rod 20. The carriers S, 9 may be worked in alternation. The wefts may be laid in position continuously or at intervals.
Patent GB-320625-A (GB)
Title: Improvements in or relating to liquid-delivery apparatus
IPC: G01F11/28
Filed: 1928-07-16
Abstract: 320,625. Appleby. J. A., and Wakefield & Co., Ltd., C. C. July 16, 1928. Direct air and gas pressure apparatus, non-automatic. - Lubricating-oil or other liquid contained in a drum 1 is fed by gravity to a measuring-vessel 3, and is forced from there by fluid pressure to a plurality of receiving-chambers 7, 70 at a higher level, the liquid being then dispensed by means of cocks 9, 90. The fluid under pressure is supplied by connections 10, 11 to the top of the vessel 3, cocks 12, 13 being provided for controlling the supply of fluid or opening the vessel 3 to atmosphere. A separate vessel 3 is preferably connected to each receiving-chamber 7, 70 by pipes 6, 60. Also the vessels 3 may be fed from separate drums, as by pipes 2, 20, and preferably with oil of different grades. The connection 110 is intended to supply fluid pressure to a second vessel 3 (not shown). Specifications 9358/08, 116,388, and 236,655 are referred to.
Patent GB-1505379-A (GB)
Title: Blade sharpener
IPC: B24D15/08
Filed: 1975-05-15
Abstract: 1505379 Sharpening blades IMPERIAL KNIFE ASSOCIATED COMPANIES Inc 15 May 1975 20660/75 Heading B3D A sharpener for the blades of knives and scissors comprises a unit rotatably connected to a support 11 and including an abrasive wheel 13 and supporting means 17, 18 engageable by the side of a knife blade and inclined towards the axis of the unit to enable a side of the knife blade to be in contact with the wheel, and a guide 32 movable between a first position in which the wheel is exposed to enable sharpening of a knife blade and a second position overlying the unit, the guide having a portion 35, when in the second position, engageable by a scissor blade to present the blade to the periphery of the wheel, and the guide being manually movable to hold the unit against rotation while the scissor blade is manually reciprocated. The support 11 is in the form of a flatbottomed holder having a handle portion 12 and spaced walls 28, 29 which together with side walls 30 define a recess for receiving the wheel unit. The wheel has a flat periphery and inwardly tapering recesses 14 forming a web 15 having a square hole. The blade supports 17, 18 have frusto-conical surfaces 21 and are received in the recesses 14. The supports also have square holes and the surfaces 21 of one or other or both of the supports may be formed with ribs 22 to impart vertical movements to a knife as the unit rotates. The wheel and supports are mounted between end caps 26 on a square hub 26 mounted so as to be free to wobble on an axle 31 engaging the walls 27, 28. The guide 32 is arcuate and resiliently flexible and is mounted by arms 33 on the axle 31. A digitally extending tab 34 on the guide is provided for moving the guide from the first position in which the tab engages one of the side walls 30 and the guide underlies the unit to expose the unit during sharpening of a knife, to the second position with the tab engaging the other side wall 30, the guide overlying the unit so that a scissor blade guided by the slot 35 engages the periphery of the wheel, the wheel being held against rotation by manual pressure on the guide pressing the guide against the unit.
Patent GB-504110-A (GB)
Title: Improvements in and connected with hay sweeps and the like
IPC: A01D87/08
Filed: 1938-05-24
Abstract: 504,110. Hay-sweeps &c. DARVILL, A. B. May 24, 1938, No. 20764/37. [Class 6 (iii)] To provide independent displacement rearwardly of the tines of a hay sweep or like device each tine is individually connected at its rear end to a frame member in such manner that it can move rearwa,rdly and also preferably vertically relatively thereto when an obstruction is met, spring means engaging the tine in advance of the frame member to cushion the movement of the tine. Each tine 1 is pivoted at its rear end to a link 22 pivoted to a transverse frame member 2 and is provided with a stop member 25 connected by a spring 23 with a forward transverse frame member 6 this member being provided with an apertured lug or saddle 21 for each tine. A plate 21a is provided to take the wear of the saddle 21 and a rubber buffer 30 for each tine is provided on the member 2. The links may be provided on the front frame member and the saddle on the rear member. Instead of the tines being individually vieldable they may be combined in sets of two or three.
Patent GB-1234693-A (GB)
Title: Liquid dispensing containers
IPC: B65D83/14
Filed: 1969-04-23
Abstract: 1,234,693. Pressurized dispensing containers. ETABS. VALOIS. April 23, 1969 [April 25, 1968], No. 20771/69. Heading F1R. The free end of a flexible dip tube 6 has a cupshaped element 8, e. g. of polyethylene, holding a marble 10 therein. Passages 12 in the element 8 provide communication between the container interior and the dip tube 6 which is of a length greater than and up to twice the height of the container 1. The dip tube between the dispensing valve 4 and the element 8 is flattened, Fig. 3 (not shown).
Patent GB-148988-A (GB)
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,988. Signal Ges. May 19, 1917, [Convention date]. Addition to 1995/13. Subaqueous audible signals.-Relates to receiving-apparatus in which the damping of the system due to work done on the microphone or other detector is made equal to the damping due to radiation of energy from the diaphragm, as in the parent Specification, and consists in designing the system so that it comprises only one, or at most two, resonant structures, the other parts of the apparatus being made aperiodic, or with natural frequencies far removed from the working frequencies. A tuned diaphragm 1; Fig. 1, may carry an aperiodic microphone 2, consisting of a casing 4, acting as one electrode, and an insulated inner electrode 5, the two electrodes forming a rigid system. Or an aperiodic diaphragm 1, Fig. 2, may carry a tuned microphone 2, consisting of electrodes 7, 8 connected by spring bows 9, 10, the granules being kept in place by a ring 11 of soft material, such as silk. Or a tuned microphone, as in Fig. 2, may be mounted on a tuned diaphragm, as in Fig. 1, by an adjustable coupling consisting of a pin 5, Fig. 3, engaging a friction collar 14. Or the tuned structure 7, 8, 9, 10, Fig. 3, instead of acting itself as a microphone, may carry a separate aperiodic microphone of the kind shown in Fig. 1.