baber/WOPTO huggingface dataset:
Patent GB-1328051-A (GB)
Title: Coin handling apparatus having an alternating feed for coins or the like
IPC: G07F5/24
Filed: 1972-01-27
Abstract: 1328051 Coin handling apparatus VENDO CO 27 Jan 1972 [14 June 1971] 3808/72 Headings G4V and G4X Coin handling apparatus includes a mechanism 10 for directing successive coins from a delivery passage 16 alternately into each of a pair of coin channels 20, 22 (which constitute for example change supply storage tubes). The mechanism comprises a deflector 34 movable into and out of a position for blocking entry of a coin into channel 20 and thereby directing the coin to channel 22, means 36 responsive to the entry of a coin into channel 20 to move the deflector into the blocking position and latching means 46 for releasable holding the deflector in this position; and means 39 responsive to the entry of a coin into channel 22 for releasing the latching means. In the embodiment described the deflector 34 and coin responsive finger 36 are comprised by an assembly 28 pivoted on shaft 32, and the coin responsive finger 39 is part of an assembly 30, which includes a second deflector 38, also pivoted on shaft 32. The assemblies 28, 30 are biased by weights 42, 43 into their non- blocking positions. The latch for assembly 28 comprises a spring blade 46 which engages a shouldered notch on the assembly and is released on rotation of the assembly 30 caused by a coin entering channel 22 by a cam 52 on the assembly 20 (see also Figs. 4 and 6, not shown). The second deflector 38 is provided so that when both channels 20, 22 are full (Fig. 5, not shown) the coins are directed to a third channel 24 leading to a coin box.
Patent GB-328688-A (GB)
Title: Process for the manufacture of aluminium fluoride
IPC: C01F7/50
Filed: 1929-02-05
Abstract: 328,688. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Feb. 5, 1929. Aluminium fluoride, anhydrous or hydrated, is prepared by treating alumina, or hydrated alumina with gaseous hydrofluoric acid, obtained, for instance, from fluor spar and sulphuric acid. In place of gaseous hydrofluoric acid, a mixture of gaseous hydrofluoric acid and gaseous hydrochloric acid, such as obtained in the process of Specification 328,211 may be employed, only aluminium fluoride being formed. The amount of water in the product depends on the temperature at which the reaction is carried out, which in any case should not be higher than about 400‹ C. At 100‹ C., the water content is about 6 per cent, decreasing to practically zero at 200‹ C. and higher. Similar results are obtained when the reaction is carried out at room temperature, and the temperature raised towards the end of the operation.
Patent GB-231629-A (GB)
Title: An improved method of and means for indicating the position of sunken submarines and other vessels
IPC: B63B22/14
Filed: 1924-02-18
Abstract: 231,629. Milne, T. F. Feb. 18, 1924. Sunken objects, indicating position of.-A buoy c comprising a metal or glass sphere is attached by a line c<1> to a submarine or other vessel, the slack being wound on a reel d. The buoy is normally held down by a cage e carried by an air cylinder a which is pivoted on trunnions at a', but at a predetermined depth the cylinder turns over and releases the buoy, which then floats to the surface. To this end the upper end of the cylinder is weighted as at c<2>. Fig. 3. but is normally held against rotation by engagement of the stopper f<2> with a fixed loop g. When the water pressure reaches a predetermined value the stopper is driven in and the cylinder turns over. The stopper may comprise a cork sleeve f held between washers f<1> by a nut f<2> and bolt f<3>, and in order to increase the depth at which the buoy will be released the inward movement of the stopper may be resisted by a bow spring h the legs of which are held together by a helical spring h<1>.
Patent GB-585315-A (GB)
Title: Improvements in or relating to the production of oxidation products from fatty materials
IPC: C11C3/00
Filed: 1945-02-20
Abstract: A mixture of carboxylic acids is obtained by treating a sulphated fatty acid or a sulphated fatty acid ester with nitric acid in the presence of an oxidation catalyst.  In the examples, methyl oleate and oleic acid respectively are treated with sulphuric acid in the cold, the product washed with sodium chloride solution and then heated with manganese dioxide.  Nitric acid is added, the mixture heated and then steam distilled. Pelargonic acid is extracted from the distillate, by solvent extraction and azelaic acid from the residue by making alkaline with caustic soda, separating the aqueous layer, acidifying and cooling.  The dibasic acid may also be removed from the residue by extracting first with a non-polar solvent such as a petroleum fraction, ethylene dichloride, chloroform, cold benzene or cold ether to remove the unreacted oil and by-products; and then with a relatively more highly polar solvent such as ethyl acetate, butanol, hot water, hot methanol, hot ethanol or hot ether to remove the acid.  An alternative method of separating the mono- and dicarboxylic acids comprises extraction of the mixture with caustic soda to remove the monosodium salt of the dicarboxylic acid leaving the monocarboxylic acid in the residue. Other oxydation catalysts may be employed such as a manganous or manganic salt or manganese oxide or a salt of a manganese containing acid radical, examples being manganese chloride, nitrate, stearate, oxide, trioxide, heptoxide, manganic oxide, potassium permanganate and sodium manganite. Compounds of other metals of groups I (b), V (a), VI (a), VII (a) and VIII of the periodic table such as the soaps, oxides and salts (e.g. halides, sulphates, nitrates and phosphates) of chromium, cobalt, iron, copper, molybdenum, rhodium, palladium, silver, tantalum, tungsten, iridium, platinum and gold.  Other compounds in which the metal is in the acid radical, such as chromates, dichromates, vanadates, permanganates, manganates, manganites and molybdenites and complex salts such as the chloroplatinates and aurichlorides may be used.  The starting material may be obtained by sulphation of any unsaturated fatty acid or ester, e.g. brassidic, erucic, linoleic, eleostearic, linolenic and clupanodonic acid and ethyl oleate and methyl palmitoleate.  Mixed acids may be employed such as those derived from castor oil, olive oil or sardine oil.
Patent GB-627537-A (GB)
Title: Improvements in adjustable gripping apparatus
IPC: B25B13/24
Filed: 1947-02-14
Abstract: 627,537. Spanners; clamps. HAMILTON, R. H. Feb. 14, 1947, No. 4296. Convention date, Feb. 21, 1946. [Classes 61(ii) and 61(iii)] [Also in Group XXIV] A spanner, clamp, &c. comprises a shank or guide 10 and a sliding jaw 13 with two pairs of spaced bearing surfaces adapted to engage the shank, one pair 14, 17 being so disposed obliquely as to bind on the shank in the normal reaction of gripping the nut and the other pair 15, 16 being disposed farther apart so as not to bind on the shank when the jaw is pressed in the opposite direction, thus permitting free sliding adjustment. The clearance between the shank and the bearing surfaces is so small that all of the latter may simultaneously be disposed substantially in contact with the shank. The bearing surfaces may be constituted by the ends of relatively offset elongated projections in the jaw, and may be formed on a slide movable along a channel-like guideway in the shank.
Patent GB-457574-A (GB)
Title: Improvements in bearings for air circulating fans
IPC: F16C33/10
Filed: 1936-02-13
Abstract: 457,574. Elastic - fluid turbines. TRICO PRODUCTS CORPORATION, 817, Washingon Street, Buffalo, New York, U.S.A. Feb. 13, 1936, No. 4350. Convention date, Dec. 9, 1935. [Class 110 (iii)] [See also Group XXXIV] The housing of a fluid-pressure motor driving a fan is connected at 15 to a source of lowpressure, e.g. the intake manifold of an internalcombustion engine, whereby a flow of air is induced through a jet orifice in the periphery of the housing on to the blades 17 of the rotor 2.
Patent GB-354701-A (GB)
Title: Improvements in or relating to scaffolding
IPC: E06C7/12
Filed: 1930-02-10
Abstract: 354,701. Ladder brackets. URLACHER, J. C., 24, Avenue de l'Opera, Paris. Feb. 10, 1930, No. 4445. Convention date, June27,1929. Void [Published under Sect. 91 of the Acts]. [Class 20 (ii).] A sliding ladder-bracket is formed of L and T bearers with a sliding floor 6 the bearers being supported by double triangular stiffeners 7 terminating in bearings 19 which carry a roller 35 to bear on the fronts of the ladder sides and which is adjustable to and from the ladder face by a toothed sector 33 pivoted at 341 in the bearing. The bearing 19 and upper bearings 11, 12 fixed to the platform carry adjustable sprags 10, 9 respectively to bear upon the surface of the wall against which the ladder is resting, the upper sprag being adjusted by toothed rack 15 and oscillating lever 13. The platform is supported automatically in raised position by means of spring grips 8<1> operated through levers, 8, 8<111> from the platform. Integral with the platform is a crane structure 24, 25 carrying a hauling rope 27 which passes over a pulley 29 on the top of the ladder to a winch 30 fixed to the lower part of the ladder, this winch being provided with collapsable handles 31 which serve as stops for the winch by engagement with the ladder rungs. The platform is raised to position by attaching the hook on the hauling rope to the platform and after the platform is secured the hook is released so that the crane may be used for raising material.
Patent GB-1372434-A (GB)
Title: Gamma correction bandpass amplifier circuits
IPC: H04N9/69
Filed: 1972-02-01
Abstract: 1372434 Automatic gain control; colour television RCA CORPORATION 1 Feb 1972 [8 Feb 1971] 4564/72 Headings H4R and H4F In an amplifier providing variable gain dependent on the direct current component of an input carrier signal, e.g. for amplitude correction of a colour signal from a television camera with a spatial light filter in which the gamma coefficient of the pickup tube causes luminance dependent amplitude variations of the colour carrier signals, a gain determining device is coupled to a circuit portion common to both input and output circuits and is responsive to a direct current component of the input carrier signal to provide a higher gain value when the the D.C. component exceeds a predetermined value. As described a diode 36 is connected in the emitter circuit of a transistor amplifier stage and biased, by potentiometer 38, so that an increase in the D.C. level of the input signal causes diode 36 to conduct shunting a portion 35 of the emitter resistance so reducing the negative feedback on the stage and increasing the gain of the amplifier.
Patent GB-1091465-A (GB)
Title: Dye-receptive polyester fibres
IPC: D06P3/52
Filed: 1965-02-03
Abstract: Fibres or fabrics comprising a mixture of a major proportion of a linear polyester and a minor proportion, of a linear polyester and a minor proportion, e.g. up to 10%, of a polymer of a nitrogen containing basic monomer are treated with an acidic reagent capable of diffusing into the fibres or fabrics.  It may be (a) a mineral acid, or (b) an anhydrous acid gas corresponding to a mineral acid, or (c) an organic-carboxylic acid, or (d) a halide compound capable of liberating a hydrohalic acid on contact with water at the temperature of the acid treatment, water being present during the treatment, or (e) a compound capable of forming a complex with the nitrogen containing polymer.  This polymer may be unextractable by water at a pH of 3, e.g. a vinyl pyridine polymer, a polyamide or an amine polymer.  The polyester may be a linear condensation product of a dihydric alcohol and a dicarboxylic acid, such as polyethylene terephthalate or poly 1,4-cyclo-hexylenedimethylene terephthalate. The nitrogen containing polymer may be a homo polymer of monovinyl pyridene or a copolymer of monovinyl pyridene with up to 50% by weight of a copolymerisable monomer.  The mineral acid used in the treatment may be hydrochloric acid, hydrobromic acid, sulphuric acid, sulphurous acid, nitric acid, phosphoric acid or perchloric acid.  A source of hydrogen ions such as water in or on the polyester fibres is used in those cases where none is present in the reagent.  The organic acids used in the treatment may be in the liquid or molten state or in solution in volatile organic solvent such as benzene, or in water provided that the acid is used as no less than 20% concentration.  The halide reagent (d) may be a halide of phosphorus or sulphur, or of zinc, tin or aluminium.  It may be an organo-sulphonyl halide. The treatment time and temperature may be 0.5 to 15 minutes at 80 DEG C to 200 DEG C when the reagent is a liquid or in solution.  The treatment may be effected either before or after the yarn is drawn.  The treatment renders the fibres dyeable with water-soluble, ionized dyes, comprising the large classes of acid dyes, which includes milling or strong acid dyes, direct dyes, metallized dyes and reactive dyes.
Patent GB-1044806-A (GB)
Title: Production of non-dusting and non-agglomerating solid fertilizers having good storage properties
Inventor: DETMER OTTHEINRICH
IPC: C05B19/00
Filed: 1964-02-04
Abstract: A fertilizer is rendered non-dusting and non-caking by coating with 0.01-0.6% of an isomerized drying polyene polymer.  The polymer may be obtained from isoprene, piperylene, cyclopentadiene, cyclohexadiene-1,3, butadiene, 3 - methylheptatriene - 1,4,6, or n - decatriene-1, 5,9.  It may be copolymerized with up to 50% of ethylene, propylene, butylene, isobutylene, vinyl-acetylene, styrene, a -methylstyrene, or acrylonitrile.  It may also contain up to 50% of a polymer which is incapable of further polymerization, e.g. polystyrene or polyacrylonitrile. It may have a molecular weight of 500-40,000. Isomerization may be effected before, during or after coating. The fertilizer may contain ammonium, potassium, calcium, copper, manganese, zinc, phosphate, nitrate, chloride, sulphate, carbonate, or urea.  It may be in granules having a diameter of 2-4 mm.
Patent GB-287297-A (GB)
Title: Improvements in tables and easels for school studios, schools or art, and other uses
IPC: A47B41/04
Filed: 1927-02-19
Abstract: 287,297. Saunders, I. D., and Ritchie, H. Feb. 19, 1927. Stays.-In a art school desk, the hinged top k is upheld by a a flap o, which has two hookended catches r engaging with a series of apertures s' in strips s on the underside of the top k.
Patent GB-270032-A (GB)
Title: Improvements in generators for electric arc-welding
IPC: H02K23/10
Filed: 1926-02-19
Abstract: 270,032. Irvine, M. M. Feb. 19, 1926. Exciting; yokes and carcass structures; windings.-An are-welding generator has in combination a magnet of split-pole type, a lap-wound armature with a coil span of about one half of the normal (unsplit) pole pitch and a shunt or compound excitation. Fig. 1 shows a two-pole machine with main and auxiliary portions MN, Ms and AN, As of its poles ninety degrees apart and an armature pitch of about ninety degrees also, the yoke Y being preferably of restricted section at the parts Y<1>, Y<2> separating the whole North pole MN, AN from the whole South one Ms, As. The main poles carry a shunt winding and a series winding E, F is placed on all polar parts between the loading arc I and the brushes B<1>, B<2> which are situated under the main poles only. The shunt and series coils are additive on the main poles. It is shown in the Specification that such a machine gives a drooping load characteristic, the droop of which may be increased by making the gaps under the main polar parts smaller than those under the auxiliary parts. The current may be varied to suit different electrodes by means of a shunt regulator J or a diverter across the series coils on the main polar parts. The auxiliary polar parts AN, As may be unwound and derive their excitation from the armature field alone.
Patent GB-113179-A (GB)
Title: Improvements in Vehicle Wheels.
Inventor: SANGSTER CHARLES THOMAS BROCK
IPC: B60B3/00
Filed: 1917-04-04
Abstract: 113,179. Sangster, C. T. B. April 4, 1917. Disk wheels are built up of a series of sheet metal sectors a' formed with stiffening spoke-like parts a<3> which are radial. The flanges a<2> are slotted at the centre to clear the hub flange c<1> to the built-up disk is secured as by rivets a<6>. To obtain a positive driving-connexion, the flanges a<2> may be recessed into the flange c<1>. The joints at the outer periphery are preferably covered by metal pieces g which may be formed with plugs to enter the tubular formations a<3>, a<3>. The pieces g may also serve to take the bolts j<3> by which the disks are connected and, in some cases, a detachable tyre-carrying rim k is secured between the flared edges of the disks. At the centre, some or all of the sectors may be reinforced by means of flanged wedges f positioned to engage screwed studs c<2> by which the disk a with its hub sleeve c is detachably secured to the flange d<1> of the permanent hub d. A thin onepiece disk h may be brazed &c. to the outer face of the built-up disk. The disk b, which may be in one piece or otherwise, is fitted with a coned bush i adapted to receive a coned nut j threaded on to the outer end of the hub sleeve c.
Patent GB-731984-A (GB)
Title: Apparatus for gripping a moulding flask during the separation of the mould from the pattern
IPC: B22C15/30
Filed: 1953-02-20
Abstract: 731,984. Moulding-machines. BUHRER, E. Feb. 20, 1953 [Feb. 25, 1952], No. 4854/53. Class 83 (1). In apparatus for gripping a moulding flask during the separation of the mould from a pattern, surfaces are provided on the moulding flask and on the clamps of a gripping device such that when the surfaces make contact with each other they become holding surfaces without causing any change in position of the flask, the clamps being controlled by a common source of power and the gripping action taking place only after all the clamps have made contact with the holding surfaces on the flask. When a mould F or F1, Fig. 2, is completed, a presser plate 3 is swung aside and mould-draw mechanism swung over the mould until it encounters a stop 6, Fig. 1. Air is then allowed to escape from a cylinder 12 allowing the piston 14 and the associated mechanism to fall until clamping levers 27, 28, are located opposite clamping surfaces 9, 10, on projections 8 of the flask. Clamping cylinders 31 are connected to a common air supply through pipes 32 and through the cylinder housings and piston-rods 30 : the pressure acts equally on both levers at each end of the flask. As soon as all the levers encounter resistance the pressure in the cylinders is increased. The piston 14 is then raised to strip the mould from the pattern, the mould platform 2 being vibrated during the stripping movement. On completion of the stroke the mould-draw apparatus, together with the clamped mould F, is swung outwards into position 40, Fig. 2. If the drag half of a mould is concerned a looking pin 38 may be depressed and the mould turned over through 180 degrees before removal. In a modified arrangement for withdrawing a mould on a relatively large jolting table the undermost flask has machined gripping faces in parallel opposed pairs to be engaged by pistons moving in cylinders connected to a common air line.
Patent GB-625182-A (GB)
Title: Improvements relating to electronic timing circuits
IPC: H03K17/288
Filed: 1947-02-19
Abstract: 625,182. Valve relay circuits. SCOLES, G. J., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Feb. 19, 1947, No. 4855. [Class 40 (vi)] An electronic timing circuit is arranged to control the time delays between the operation of a sequence of relays, the relays being adapted to reset the timing circuit and to preset the delay periods so that the relays operate in succession with different delays. Fig. 2:shows the timing circuit and Fig. 3 the associated sequence of relays. The timing unit comprises two valves V1, V2 with feed-back capacitors C1, C2 between their anode and control, grids and relays A, B connected in the screen-grid circuits via switch contacts so that when the switches are made the relays operate after a time delay dependent upon the value of the potential to which the feed-back capacitors are returned. When push-button P. is depressed relay D operates and is held operated by hold on contact D3 when the push-button is released. The delay period of relay A is initiated by closure of contact D1 in the screen grid circuit of valve V1 and is determined by the value of potential to which the grid of valve V1 is connected via contact D2. When relay A operates relay E then operates via contacts A1, D4. The operation of relay E prepares relay B for operation via valve V2 and simultaneously releases relay D and thus relay A. When relay B operates, relay F then operates and initiates the operation of relay A which operates after a different delay period determined by the potential to which the grid of V1 is returned via contact F2. Similarly, relay B operates via contacts G1 and G2. Thus relays A and B operate alternately with different delay periods the range of values of which may be extended by the provision of additional contacts controlled by further sequence relays and connected in parallel with contacts F2 and G2. Specification 602,642 is referred to.
Patent GB-740264-A (GB)
Title: Electromagnets
Inventor: JENKINSON ROBERT ARTHUR
IPC: G10K9/13
Filed: 1953-02-21
Abstract: 740,264. Electromagnets. LUCAS (INDUSTRIES), Ltd., J. Feb. 17, 1954 [Feb. 21, 1953], No. 4908/53. Class 35. [Also in Groups XXXVIII and XXXIX] An electromagnet for a sound-producing horn comprises a pair of straight iron parts a separate from and arranged parallel with each other, each being made from sheet metal bent longitudinally to a trough-like section throughout its entire length and being positioned to receive one of the two sides b of a quadrilateral form energizing winding, and a rectangular form iron armature d extending over the open sides of the iron parts and supported to vibrate rectilinearly. Each part a comprises one or more pieces secured to the horn body f to which also the winding ends are attached by clips g. The horn comprises a flexible metal diaphragm e clamped to the body f by a ring i and vibrated by the armature d which may be laminated and is adjustably attached to a stem h secured to the diaphragm and supported and biased by a spring blade j.
Patent GB-104771-A (GB)
Title: Improvements in Explosive Projectiles.
Inventor: BEVER AUGUSTUS
IPC: F42B12/66
Filed: 1916-04-04
Abstract: 104,771. Bever, A. April 4, 1916. Projectiles.-Consists in loading shrapnel shells A with chains H attached at one end directly to the nose-piece E, for example by means of lugs F and pins G, and provided at the other end with weights or hooks I.
Patent GB-266132-A (GB)
Title: Improvements relating to wind screens for motor and other cycles
IPC: B60J1/02
Filed: 1926-02-20
Abstract: 266,132. Brookes, F. A., and Beesley, J. A. Feb. 20, 1926. Weather-screens. - A wind-screen for motor and other cycles comprises a rigid frame d carrying the transparent portion e of the screen, and a pair of parallel rods a, which are arranged in a plane inclined to, or parallel with, that of the frame d and are attached to the upper and lower members of the frame, the latter and the rods forming a light but rigid skeleton structure. The rods a are rigidly connected to the upper horizontal member of the frame d by clips f, or, when the rods are parallel with the frame, by distance pieces. The lower ends of the rods a are formed with upwardly-bent portions c rigidly connected by clips g to the lower horizontal member of the frame d, and are provided with clips l whereby the screen is mounted on the handlebar k. The rods a may be formed integrally at the top with a cross-bar b, on which is hinged a transparent screen h, adapted to be secured in any desired angular position by clips &c. i. The portions of the frame d which extend laterally beyond the rods a may be bent backwards to form side wings.