baber/WOPTO huggingface dataset:
Patent GB-336674-A (GB)
Title: Improvements in and relating to purifying canisters for breathing apparatus
IPC: A62B19/00
Filed: 1929-07-19
Abstract: 336,674. Davis, R. H. July 19, 1929. Respirators.-An absorbent canister 1 mounted within the breathing bag of a respirator is of rectangular shape with rounded end walls 5 and is provided with additional walls 11 spaced from the walls 5 and extending below them, thus forming crescent-shaped channels 13, 14 serving as air-inlets. The bottom of the canister is closed by a perforated plate 9 flanged at 10 and is further provided with a sheet 'of wire gauze 16 which, with the plate 9 is secured by a bent wire spring 17 engaging lugs 18, 19 on the walls 11. The canister is also provided with a cap 7, having a connecting piece 8 for the usual flexible hose, and with a lateral tubular extension projecting through the breathing bag and carrying lock-nuts for securing the bag thereto. The extension serves as a filling aperture and may be closed by a cap or carry a valve for the admission of oxygen to the breathing bag.
Patent GB-937982-A (GB)
Title: Improvements in and relating to reversible revolution counting apparatus
Inventor: ABBINK-SPAINK PETER FRANCIS
IPC: H03K29/00
Filed: 1958-07-03
Abstract: 937,982. Electronic counting apparatus. ENGLISH ELECTRIC CO. Ltd. Sept. 22, 1959 [July 3, 1958], No. 22357/59. Divided out of 937,981. Class 106 (1). A reversible revolution counter comprises a selsyn, the rotor of which, attached to a shaft the revolutions of which are to be counted, is supplied with A.C. and connected in series with each of two of its stator windings so that as the shaft rotates the two sum A.C. voltages reach maxima 120 degrees (of the shaft rotation) apart; these voltages are rectified and applied negatively with appropriate bias to the sets G1, G2 of transfer electrodes of a multicathode glow-discharge tube V1, the glow thus resting on one of the main cathodes K when both sets G1, G2 are positive, but being transferred up or down as the shaft rotates to carry G1 and then G2, or G2 and then G1, negative. Although the tube effects counting in radix 10, it has twelve cathodes; on counting up the glow is transferred immediately from K10 to K0 without change of input to G1 and G2 by a negative pulse from V2 anode and time-spaced carry pulses are delivered to G1 and G2 of the next denomination tube V4 (by appropriate time constants in V2 anode circuit), on counting down similar immediate glow transfer, and borrow from V4, is effected by V3. Such an arrangement using two extra cathodes is described in Specification 937,981.
Patent GB-423939-A (GB)
Title: Improvements in or relating to mining machine cutter chains and links therefor
IPC: E21C25/36
Filed: 1933-08-10
Abstract: 423,939. Mining-machines. HOY, A. Y., Bush House, Aldwych, London. Aug. 10, 1933, No. 22386. [Class 68 (i)] [See also Group XXV] In a mining-machine cutter chain in which cutter-carrying links 1, comprising side plates 3 connected by bridges 4 and forming between them a sprocket tooth throat, are connected by intermediate links 2 mounted between the side plates, when the chain is approximately straight the bridges 4 overlie the links 2, or successive cutter carrying links 1 abut at their ends, or both, to prevent undesired reverse flexing of the chain. The bridges of successive links 1, or the side plates, or both may abut. Apertures 8 permit escape of dust &c. The pivot holes 7 in the links 2 may receive bushings 9, Fig. 7, or ball or roller races with projections 10 engaging recesses in the cutter links 1 to prevent rotation relative thereto. The links 2 may be flat or of T, I or other section ; adjacent links 2 may be spaced for entry of a sprocket tooth or they may meet within the sprocket tooth throat, being then recessed to receive the sprocket tooth. The links 1 may be built up of welded &c. parts and may have guide or strengthening ribs.
Patent GB-174655-A (GB)
Title: Improvements in or relating to alternating current electric motors
IPC: H02K17/30
Filed: 1920-07-27
Abstract: 174,655. Carey - Gavey Syndicate, Ltd., and Higginson, K. July 27, 1920. Alternating-current motors.-An alternating- current motor is provided with a multiphase stator winding, the sections of which are so arranged that the currents in some of the sections can be reversed by means of a controlling switch with the result that the poles are shifted round the stator, so that the torque is altered to facilitate starting; a special arrangement of rotor suitable for such a motor is also described. The sections M, O, P, Q of the stator winding are arranged in the slots of the stator A in the manner shown in Fig. 1. The section M is connected to the supply and the segment L of the switch C; the section O is connected to the segments G<1>, G and H<1>, H, the section P to the segments K, K<1> and J, J', and the section Q to the segments E, T<1> and F, F<1>, the other pole of the supply being connected to the segment D. When the switch arm R carrying the bridge pieces S<1>, S<2>, S<3>, S<4> is in the position indicated by the dotted line R<1> the current flows as indicated by the arrows. When the arm R is in the position R<2> the current in the section O is reversed, in the position R<3> the current in the section P is reversed, and in the position R<4> the currents in the sections P, Q are reversed, thus giving four positions for the centre of the pole-face. The arm R also carries a bridge-piece S, which gradually cuts out resistance T<1> in the rotor circuit as the motor is started. The rotor has a delta winding, the sections of which are connected through the resistances T<1> and slip-rings U<1>, and are also connected to the segments V of a commutator. On the commutator is arranged a brush V<1> so as to bridge two successive segments of the commutator, so that as the rotor rotates the winding sections are short-circuited in succession as indicated at v<1>, Fig. 4.
Patent GB-1365826-A (GB)
Title: Labelling machine
IPC: B65C9/18
Filed: 1972-05-12
Abstract: 1365826 Labelling PRICEMASTER Ltd 7 May 1973 [12 May 1972] 22437/72 Heading B8F In a labelling machine in which a labelbearing strip 15 is drawn from a supply reel 14, passed around a small radius label-stripping roller 34 adjacent a label applicator plate 40, and rewound on a collector reel 16 rotatably driven through a usi-directional friction clutch 17 by a reciprocable slide 27, a guide roller 38 is mounted on the slide 27 for cyclically shortening and lengthening the path of the strip between the stripping roller and collector reel such that during lengthening, a fresh length of strip is drawn from the supply reel and a label stripped by the roller 34, and, during shortening, a corresponding spent strip length is taken-up upon the collector reel. As shown, the machine is a hand-held dispenser, and the slide is moved to the right against the bias of a spring 24 on squeezing of a trigger 25 to effect shortening of the path between the roller 34 and collector reel. Simultaneously, a stud 22 on the slide rotates a lug 19 of the collector reel clutch to effect takeup of a length of spent strip whilst draw-off from the supply reel is prevented by a pawl 31 clamping the strip against a fixed plate 29. On release of the trigger, the slide is moved to the left by the spring 24 to draw off a new strip length from the supply reel and effect stripping of a label from the strip as it is drawn about the roller 34. The one-way clutch resists unwinding of strip from the collector reel during leftwards slide movement. During the rightwards movement of the slide, an inking roller 56 thereon wipes the characters of a manually-settable band printer 50, which is subsequently moved downwardly to print a label positioned on a platen 43 on continued rightwards slide movement, the printer being depressed by a slide pin 58 engaging a pivoted cranked lever 52. The printed, stripped label is received between cranked wire supports 45 and the ribbed end of the applicator plate. In modifications, (a) the machine may be power-operated. (b) The guide roller 38 and a resilient strip tensioner 35 may be replaced by a neoprene guide roller. (c) The pivoted applicator plate may be replaced by a fixed plastics plate. (d) The guide roller 38 and tensioner 35 may be replaced by a rotary member having a diametrical channel or a pair of diametrical extensions to effect shortening and lengthening of the strip path between the stripping roller and the collector reel as said member is rotatablyoscillated by a gear in engagement with a rack on the slide.
Patent GB-620415-A (GB)
Title: Process of preparing salts of streptomycin
Filed: 1946-07-29
Abstract: Complex salts of streptomycin acid salts and alkaline-earth metal halides are manufactured by reacting a streptomycin acid salt (especially a hydrohalide and preferably of an activity not less than about 300 units per mg.) with an alkaline-earth metal halide in a solvent medium in which the reactants and product are freely soluble, and separating the complex salt by diminishing its solubility (e.g. by evaporating off at least part of the solvent, preferably under reduced pressure, or by adding a miscible solvent in which the complex is only slightly soluble) and crystallizing out the substantially pure product, which may be further purified by recrystallization from the same or a different solvent or solvent mixture.  Preferred reaction media are methanol, a mixture of 5 parts thereof with 4 of ethanol, a mixture of one part of water with 2 of ethanol, or mixtures of water with other lower aliphatic alcohols such as propanol or isopropanol, whilst ethanol is a suitable precipitant for the complex salt.  In examples: (1) and (2) streptomycin hydrochloride is treated with a solution of calcium chloride in methanol and the resulting solution is evaporated and crystallized; (3), (4) and (7) streptomycin helianthate is treated with excess of calcium chloride in methanol, the precipitated calcium helianthate is filtered off, and the streptomycin hydrochloride-calcium chloride complex is isolated from the filtrate; (5) the calcium chloride in (2) is replaced by calcium bromide, and (6) by strontium chloride; (8) streptomycin acetate is treated as in (1) to produce its complex salt with calcium chloride; (9) streptomycin hydrobromide is similarly treated.  Streptomycin hydriodide is also specified as a starting material.
Patent GB-1334167-A (GB)
Title: Machine lubricating system
IPC: B23Q11/10
Filed: 1971-04-19
Abstract: 1334167 Lubricating ING C OLIVETTI & C SpA 19 April 1971 [5 March 1970] 22462/71 Heading F2A The lubricating system of a machine in which oil is pumped from a reservoir 4 through a delivery circuit to the machine and thence via a return circuit to the reservoir, has oil detecting means disposed in the return circuit. The detecting means is responsive to a drop in the pressure or rate of flow of the returning oil and effects the arresting of the machine. Oil returning from the machine via duct 3 is fed to the detector via a connection 23, and passes into a chamber 27 in which metallic particles are removed from the oil by a magnetic plug 32. The oil passes through a port 30 to a chamber 28 containing a float 33. The chamber 28 has two lubricant exits, a lower port 34 which allows a restricted flow, and an upper port 31. In normal operation the oil flow is sufficient to fill the chamber 28 and maintain the float in an upper position. On failure of the lubricant pressure the level of lubricant in the chamber 28 drops causing the float to fall thereby generating an electrical signal which operates an electric circuit to arrest the machine. The machine being lubricated is operated cyclically, and the electric circuit is adapted so that the machine is only arrested at the end of a cycle. The flow of lubricant from the chamber 28 through the restricted duet 34 is sufficient to lubricate the machine during one cycle of operation. A sight glass 18 is provided to indicate the oil level in the reservoir, and a further indicator 15 is provided to show that the pump is operating. The lubricant preferably passes through filters 5 and 11 before and after passing through the pump 6.
Patent GB-1048385-A (GB)
Title: Improvements in or relating to information recording apparatus
Inventor: LEECH ARTHUR SIDNEY
IPC: B41K3/38
Filed: 1963-06-07
Abstract: 1,048,385. Accounting machines. BELL PUNCH CO. Ltd. June 5, 1964 [June 7, 1963], No. 22765/63. Heading G4T. First information set by differential levers 10a (Fig. 2) is printed on a paper sheet by a print wheel 22 and hammer 4 on depression of a key 15, and as illustrated in Fig. 4 (not shown), through movement of a wiper 24 over a binary coded circuit board 23 with connections through rotary switches 29 for selecting each board 23 in turn, activates punch solenoids 48 for punching a tape, and second information set on press button keys is printed on the paper sheet by a further hammer and print wheel and is punched on the tape in binary code by activation of the punch solenoids 48 connected through rectifier circuits 32b to a selective rotary switch 32. The circuit boards 23 are selected in turn by a rotary switch 27 driven by a motor 33 which also rotates the punch selecting switches 29. Operation of a switch key 15 closes a clutch 34 or 35 to permit the motor to drive a shaft 36 with a cam engaged by a roller 37 which draws a framework 39 inwards until engaged by a stop 40 and the hammer 4 continues under its own inertia to the printing position and is returned by a spring 42. The paper carriage moves stepwise on guides la, 1b under action of a spring and a ratchet-and-pawl mechanism (not shown).
Patent GB-256075-A (GB)
Title: Improvements in low frequency transformers for use particularly with receiving apparatus for wireless telephony
IPC: H01F19/02
Filed: 1925-09-12
Abstract: 256,075. Godden, A. F., and Bradley, P. T. Sept. 12, 1925. Transformers.-A low frequency transformer for use with wireless receiving apparatus is provided with plug terminals to afford ready interchangeability. The windings 2 may be provided with an iron wire screen, and are enclosed in a cylindrical casing 1 provided with detachable end members 3, 9, the whole assemblage being secured together by a central screwed pin 8. The terminal pins 4 are mounted on the member 3, and may be so located as to co-operate with the usual four pin valve holder.
Patent GB-461261-A (GB)
Title: Improvements in and relating to clothes presses
IPC: D06F71/36
Filed: 1935-08-13
Abstract: 461,261. Ironing-presses. McINTYRE, A. B. Aug. 13, 1935, No. 22817. [Class 138 (ii)] The buck 12 of an ironing - press is provided 'with a pad of absorbent material between the usual cover 30 and an apertured plate 25 positioned above perforated pipes 28 and the electric heating unit 22. Water is admitted to the pipes 28 from a reservoir 31 through a pump 33 which may be of the piston type and manually actuated or, as shown, automatically operated through the lever 36 actuated by the closing of the press.
Patent GB-706579-A (GB)
Title: Improvements in vehicles
IPC: B60P3/025
Filed: 1951-10-04
Abstract: 706,579. Collapsible vehicles. HOUDART, R. Oct. 4, 1951 [Oct. 4, 1950], No. 23146/51. Class 108(1) A laterally - extensible vehicle has side parts 216, 216a and floor parts 215, 215a extendible by means of tubular members 221, 221a housed within boxframe members 207. The members 221, 221a are operated by toothed wheels 225 rotated by worm and worm, wheels 230, 231 from the shaft 232 and detachable handle 233. Separate wheels 225 may be used for each tubular member so that the side parts may be selectively extended.
Patent GB-828318-A (GB)
Title: Dispensers
IPC: B01L3/02
Filed: 1956-07-26
Abstract: 828,318. Drop dispensing devices. CASTELLI, C. July 26, 1956 [July 27, 1955], No. 23183/56. Class 125(3). A dispensing device for withdrawing drops from bottles has an outlet tube 3, a bottle cap 5 and a bulb 2, with flexible member inside to limit the inward travel of the wall when squeezed. The flexible members are two opposed pairs 7 and 7<SP>1</SP>, of upright rods attached to the top of the bottle cap inside the bulb and joined together by one or more webs 8. When the bulb is squeezed, the opposing pairs of rods are compressed against each other. The width of the rod " a " is half that of the thickness "b" so that when two are pressed together, they form a square. If the bulb is squeezed diagonally of the pairs, adjacent rods press against each other to form two squares.
Patent GB-728114-A (GB)
Title: Improvements in and relating to electrical vapour detectors
IPC: H05H1/00
Filed: 1953-08-24
Abstract: 728,114. Electric tests and measurements. GENERAL ELECTRIC CO. Aug. 24, 1953 [Aug. 22, 1952], No. 23297/53. Class 37. [Also in Group XL (a)] In a vapour detecting device of the type described in Specification 648,367, in which the presence of the vapour causes an ionic discharge between a heated electrode and a collector electrode, amplification is obtained by making the said collector electrode the cathode of a thermionic valve. The filament electrode 3 is positive with respect to tubular electrode 7, and when it is heated in the presence of halogen vapour, as described in Specification 725,515 an ionic discharge occurs. This is collected by electrode 7, which has an external coating of emissive material, and also acts as a thermionic cathode, cooperating with anode 5 and control grid 4, and heated by filament 3. Variations in cathode potential caused by the collection of the ions will cause corresponding variations in the anode current, indicated by an external instrument 21. If current gain is not important, control grid 4 may be omitted. The hollow cathode 7 extends through the tube envelope at one end, and is closed at the other end, as at 8, so that the vapour admitted is isolated from the interior of the thermionic discharge space.
Patent GB-761012-A (GB)
Title: Billet shears and the like
IPC: B23D21/00
Filed: 1954-08-12
Abstract: 761,012. Shearing. INDUSTRIE-WERKE KARLSRUHE AKT.-GES. Aug. 12, 1954 [Aug. 13, 1953], No. 23465/54. Class 83 (4). In bar shears in which a blade 2 carried by a member 1 connected by a pivot 3 to the frame co-operates with a fixed blade 10, a bar-supporting member 4 pivotally connected to the member 1 is actuated in response to shearing pressure exerted on the member 1 to clamp the bar against the moving blade 2 during shearing. The supporting member 4 is in the form of a bell-crank connected to the member 1 by a pivot 5, and an eccentric 12 exerts the clamping and shearing pressure. The fixed blade 10 is adjustable laterally by the use of shims 13. The bar is fed at an angle to ensure a perpendicular cut, and is held by a holding device 7. The bell-crank may be hydraulically or pneumatically operated.
Patent GB-1058610-A (GB)
Title: Process for the decorative enamelling of large surface areas of domestic appliances
IPC: C23D5/00
Filed: 1964-06-05
Abstract: A surface having only a base enamel layer is decoratively enamelled by the application of a polyester resin foil printed with a decorative top coat enamel layer and optionally at least one vitrifiable transparent or coloured enamel, followed by stoving during which the foil burns away without appreciable residue, the surface tension (S.T.) of the top coat enamel being appreciably less than that of the base enamel.  The enamels are embedded in the foil by a silk screen printing process.  If used, the transparent or coloured enamel forms a pattern, the spaces in which are filled by the top coat enamel; or the coloured enamel may be embedded in a closed top coat enamel layer. The top coat enamel need not contain conventional additives of clay and flotation agents. The S.T. of the base enamel is desirably greater than the sum of the top coat enamel S.T. and the top coat/base enamel boundary S.T.  If the transparent or coloured enamel S.T. is lower than the top coat S.T., the former enamel will sink into the latter during stoving to produce a desirable relief-like effect.
Patent GB-802885-A (GB)
Title: Process for the production of n-substituted n-aryl sulphonyl ureas
Filed: 1957-07-25
Abstract: The invention comprises compounds of general formula <FORM:0802885/IV (b)/1> where R is alkyl, alkenyl or a cycloalkyl radical.  The compounds may be prepared by three methods: (1) by reacting p-fluoro-benzene sulphonamide or an alkali salt thereof with an isocyanate of the general formula RNCO, or with a reactive functional derivative of a carbamic acid of general formula R-NH-COOH such as an ester nitrile amide or halide; (2) by reacting an amine of general formula R-NH2 with p-fluoro-benzene sulphonyl isocyanate or a reactive functional derivative of p-fluoro-benzene sulphonyl carbamic acid such as an ester, nitrile, amide or halide.  In both these reactions a condensing agent such as alkali alcoholates, pyridine or triethylamine may be used and in the second reaction hydrogen chloride may also be, and is preferably, used.  When a nitrile is used as one of the reactants the product is a guanidine which is then partially hydrolysed to form the corresponding urea; (3) by reacting a p-fluorobenzene sulphonylhalide of general formula <FORM:0802885/IV (b)/2> where X is chlorine or bromine, with an ether of the isoform of an alkyl, alkenyl or cycloalkyl urea, preferably methyl or ethyl ether, and partially hydrolysing the N1-substituted N - (p - fluoro - benzene) - sulphonyl isourea preferably with hydrochloric acid, to form the corresponding urea.  Examples of R specified are methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec.-butyl, n-amyl, isoamyl, n-hexyl, b -methyl pentyl, n-octyl, b -ethyl-hexyl, allyl, crotyl, methallyl, cyclopentyl, cyclohexyl, and endomethylene cyclohexylmethyl.  The compounds of the invention may be converted into stable water-soluble alkali salts.  Examples are given of the preparation of (1) N-(p-fluorobenzene sulphonyl)-N1-n-butyl urea; (2) N-(p - fluoro - benzene sulphonyl) - N1 - isobutyl urea; (3) N-(p-fluoro-benzene sulphonyl)-N1-sec.-butyl urea.  Other compounds specified are the ethyl, n-propyl, isopropyl allyl and cyclohexyl urea.