baber/WOPTO huggingface dataset:
Patent GB-1074584-A (GB)
Title: Improvements in or relating to electrical circuits for indicating ratios
Inventor: BIRNSTINGL DAVID WILDON
IPC: G06G7/163
Filed: 1963-02-19
Abstract: 1,074,584. Electric analogue calculating. MAWDSLEY'S Ltd. Feb. 14, 1964 [Feb. 19, 1963], No. 6579/63. Heading G4G. [Also in Division G1] A circuit for indicating the ratio of two electrical currents or the current analogues of two physical quantities comprises an indirectly heated thermistor simultaneously carrying A.C. and D.C. or two A.C.'s of differing frequencies; means regulating the heater current to control the value or mean value of either component appearing across the thermistor, and means for sensing the other component as an indication of the ratio of the two components. A magnetic flowmeter has two electrodes 2 and a magnetizing coil 3 energized with A.C. in series with a current transformer 4, whose output is rectified, smoothed, and applied over resistance 5 to the base of a transistor 6; the voltage across the electrodes being differentially amplified and capacitance coupled to the transistor base in combination with the rectified current transformer output. The collector current proportional to the combination traverses thermistor 10 having heater element 11, and the direct component of the voltage across the thermistor is smoothed and differentially amplified with a reference direct voltage to energize the heater element so that the thermistor resistance rises and falls as the voltage falls and rises with respect to the reference voltage. The alternating voltage across the thermistor is capacitance coupled to a measuring instrument (not shown) indicating the ratio of the flow meter electrode voltage to the magnetizing current.
Patent GB-252490-A (GB)
Title: Improvements in and relating to the coating of metal wires
IPC: C23C2/12
Filed: 1925-03-11
Abstract: 252,490. British Thomson-Houston Co., Ltd., (General Electric Co.). March 11, 1925. Resistance furnaces. - Metal wires 14 are coated with another metal such as aluminium by passing from a spool 15 around a guide 16 mounted on a bracket 18 on a ball 11 of the coating metal contained in a crucible 10 placed in an electric furnace 12 heated by a resistance 13. To prevent the formation of deposits of dross on the coated wire, heat is applied to the surface of the bath at the point where the wire 14 emerges by a hydrogen burner 20 adjustably mounted on a bracket 21.
Patent GB-959160-A (GB)
Title: Flexible shaft assembly
IPC: F16L11/16
Filed: 1963-02-19
Abstract: 959,160. Flexible conduits; flexible shafts. STEWART-WARNER CORPORATION. Feb. 19, 1963 [Feb. 20, 1962], No. 6701/63. Headings F2P and F2U. A flexible protective outer casing 8 for a flexible shaft 24 comprises in combination a pair of continuous strip members 10, 12, each having a transverse cross-section including a web 14 and a pair of lugs or flanges 16 held spaced apart by the web and defining a channel between them, the members being formed to substantially concentric helices, staggered to overlap one another and presenting channels towards one another, the flanges of each member fitting in the channel of the other member to interlock adjacent turns of the members, each flange being in contact on its inner side with the inner side of a flange of the channel it fits in, and on the outer side with the outer side of the flange on the adjacent turn of the strip, and the inner member defining a bore 22 for the flexible shaft. As shown, the shaft 24, of known kind, has secured thereon bushings 26 of nylon, " Teflon " (Registered Trade Mark) or other plastic.
Patent GB-557526-A (GB)
Title: Improvements in or relating to power transmission
IPC: F16D33/00
Filed: 1942-05-18
Abstract: 557,526. Hydraulic power transmission. BERRISFORD, W. H. May 18, 1942, No. 6734. [Class 69 (ii)] In a hydraulic power transmission device water is fed by a pipe 8 to the centre of a hollow body 1 which is rotated about its axis by a source of power 6 and which has forwardly directed peripheral nozzles 10 providing jets for driving a preferably coaxial impulse turbine 13 from which power is taken as by means of a pulley 16. The hollow body 1 is fitted internally with guide vanes 11, 12, and a confining casing 9 serves as a reservoir.
Patent GB-265797-A (GB)
Title: Improvements in means for venting air from water mains and the like
IPC: F16K24/04
Filed: 1926-03-11
Abstract: 265,797. Edwards, G. T., Griffin, T. S., and Blakeborough, R. A. March 11, 1926. Float valves. - A float-controlled rotary sleeve valve forming part of an appliance for venting air from water mains and the like comprises a conical sleeve d which is attached to an arm e carrying a float e<1> and which has ports d<3> arranged to register with ports c<3> in the discharge pipe c when the float is in its lowest positions. The ports c<3>, d<3> may be so shaped, as shown in Fig. 2, that the closing action of the sleeve diminishes proportionately with the rising of the float. Lateral adjustment of the sleeve may be effected by a screw g bearing against an abutment h on the sleeve, and the sleeve may be fixed after adjustment by lock-nuts h<1>. To prevent irregular action of the float, the vessel a may be provided with a baffle f having an opening f<1> through which the arm e extends.
Patent GB-1090902-A (GB)
Title: A link device
Inventor: SCHERMULY WILLIAM CONRAD STEPH
IPC: F16G15/04
Filed: 1964-02-19
Abstract: 1,090,902. Chain fastenings; remotely controlled fastenings. SCHERMULY Ltd. Feb. 18, 1965 [Feb. 19, 1964], No. 6881/64. Heading E2A. [Also in Division F2] A releasable connector, e.g. for two sections of chain comprises a first member 1 having a casing 9, 10 secured thereto and slidably supporting a piston 3 having a waist portion 11, and a second member 2 having an aperture 13 spaced from one end by a slot 12 communicating with the aperture, the slot being slidable over the waist portion of the piston but not over a larger portion disposed to one side of the waist portion, the two members being linked by the larger portion being accommodated in the aperture and the second member, and the members being freed by movement of the piston to dispose the waist portion in the aperture to allow the waist portion to slide along the slot. As shown, the piston is operated to the release positon, against a spring 4, by a small explosive charge 7, or by compressed air, or electromagnetically.
Patent GB-473525-A (GB)
Title: Manufacture of disazo-dyestuffs
IPC: C09B31/06
Filed: 1937-03-09
Abstract: Disazo dyes are made by coupling a diazotized mono-sulphonic acid of p-aminodiphenylamine or a homologue thereof with a -naphthylamine, rediazotizing and coupling with 2-naphthol-4-sulphonic acid.  They dye silk in black shades which do not bronze and also have a good affinity for wool in a neutral dyebath.  In an example, p-aminodiphenylamine-o-sulphonic acid and p-aminophenyl-p<1>-tolylamine-o-sulphonic acid are specified as starting materials.  Specification 24527/97, [Class 2], is referred to.
Patent GB-557627-A (GB)
Title: Improvements relating to crepe fabrics
Filed: 1942-05-21
Abstract: 557,627. Treating cellulose derivative fabrics with liquids. BRITISH CELANESE, Ltd. May 21, 1942, No. 6922. Convention date, May 22, 1941. Addition to 540,226. [Classes 2 (ii) and 15 (ii)] A crepe fabric is obtained by subjecting a fabric containing high twist yarns of an organic derivative of cellulose to treatment with a hot aqueous scouring bath containing a swelling agent for the cellulose derivative and a substance of delayed solubility in water, i.e. a substance of colloidal nature which, though not freely soluble in water, absorbs water and swells. Examples of such substances are gelatin, egg albumin, casein, sericin, soya bean protein, proteins treated with formaldehyde or other aldehydes, gums such as tragacanth, methyl cellulose that swells in hot water, alkali-soluble cellulose ethers such as ethyl cellulose and hydroxy ethyl cellulose. The fabric may be treated in open width or in skein form. The bath may contain 2-5 per cent. of the substance of delayed solubility. The swelling agent may be pine oil or tetrahydronaphthalene or a mixture of these, or dibutyl phthalate, diethylene glycol, or mono-methyl ether of ethylene glycol. Scouring agents such as sulphonated castor oil, and sulphonated fatty alcohols may be present as well as alkaline substances such as soap. Enhanced crepe effects may be obtained by treating the fabrics containing the crepe yarn with aqueous solutions of saponifying agents such as sodium, potassium, or ammonium carbonate or hydroxide so as to saponify superficially the cellulose acetate yarns, prior to treatment with the creping bath. The fabrics may be padded with the saponifying liquid and then dried on heated cans. The high twist yarns may form part or the whole of the weft, and the warp may also contain them. The warp may contain yarns of relatively low twist and the weft may comprise alternating left and right-hand high twist yarns. The cellulose acetate or other cellulose ester or ether yarns may be associated with high or low twist yarns of other materials, e.g. silk or regenerated cellulose. Preferably high twist yarns are used which have been obtained by twisting in the presence of hot aqueous fluids such as steam or hot water. The crepe twisting may be applied in two or more stages. In examples, fabric containing high twist cellulose acetate yarns is treated in a bath containing 2-4 per cent. of isolated soya bean protein, about 0.2 per cent. each of pine oil, tetrahydronaphthalene, and Turkey red oil, and 0.5 per cent. of soap, at 98-99‹ C. Specifications 437,019, 438,589, 438,590, 438,591, 438,654, [all in Group IX], and 538,842, are referred to.
Patent GB-272980-A (GB)
Title: An improved coin freed weighing apparatus
IPC: G07F17/04
Filed: 1926-03-13
Abstract: 272,980. Avery, Ltd., W. & T., and Bradley, L. C. March 13, 1926. Indicating-mechanism. - A coin-freed weighing- apparatus is provided with mechanism to prevent fraudulent actuation. The weight of the platform of the machine, through a draw-rod 5 rocks a lever 6 against the action of an adjustable spring resistant 11, Fig. 1, the movement of the lever 6 being communicated through a link 29 and lever 30 to a vertical rack 32. The rack 32 rotates a pinion 35, Fig. 2, and a sleeve 39 keyed thereto, which are loose on the spindle 36 of an indicating pointer 38, the spindle carrying a pinion 42 meshing between toothed quadrants 43, 44. The heavier quadrant 44 is normally prevented from moving to rotate the spindle 36 by a pin 45 thereon engaging a coinbucket, lever 14. When a coin inserted through a shoot 12 drops into the bucket 13, the lever 14 is tilted and the indicating spindle 36 rotates until a stop 40 carried by a disc 41 on the spindle engages a pin 39<a> on the sleeve 39 which has been set by the weight on the platform of the machine. A disc 58 carried by the sleeve 39 has four diametrically opposed slots in which weights 59 are slidably mounted to balance the pinion 35 and its associated parts. A vertical rod 19 pivoted to and reciprocated by the lever 14 carries at the top a slotted stirrup 20 engaging a pin 22a, Fig. 4, on a pivoted depending arm 22, a pair of pivoted arms 23 held together by a spring 23<b> bearing on opposite sides of the pin 22<a>. When the lever 14 is tilted by the coin, a pawl 20<a> on the stirrup 20 rests on a spring- controlled pivoted detent 21 to hold the lever 14 in tilted position after the discharge of the coin, and a pivoted tooth 24 mounted in the stirrup engages a toothed segment 25 connected by links 27, 28 to the lever 6. If the weight on the platform is removed or varied, the corresponding movement of the lever 6 and segment 25 moves the rod 19 to one side so that the pawl 20<a> escapes the detent 21, the coin lever 14 returning to its initial position and the indicating mechanism to zero. The lever 6 is controlled by a dash-pot 61, the lever 14 by a dash-pot 56, and the quadrant 44 by a dash-pot 47 and a spring controlled lever 48.
Patent GB-730735-A (GB)
Title: Apparatus for boiling a sugar mass
IPC: C13B25/00
Filed: 1953-03-13
Abstract: <PICT:0730735/III/1> <PICT:0730735/III/2> <PICT:0730735/III/3> In apparatus for boiling sugar comprising a heater 1 which leads into an intermediate chamber 4 which is under the same pressure as the heater and has an outlet 14 which communicates with a discharge vessel 26 evacuated by vacuum pump 13, the outlet 14 is controlled by a valve 15 by means of which the discharge vessel is maintained under vacuum no matter what pressure is maintained in the intermediate chamber, and means are provided for enabling the intermediate chamber to be connected alternatively with the atmosphere or with the vacuum pump. In Fig. 1, intermediate chamber 4 is connected to a three-way cock 8 by vapour conduit 7; and cock 8 is also connected to vacuum pump 13 through pipe 9, throttle valve 10, and condenser 12.  Valve 15, which controls the flow of boiled sugar from chamber 4 to receiving vessel 26, is operated by diaphragm 18 which communicates via conduit 21 with the hood 19 of discharge vessel 26.  The amount that valve 15 may be opened is controlled by spring 22 and adjustable spindle 23. To boil sugar under vacuum, valve 15 is opened to its full extent by loosening spindle 23, cock 8 is in the position shown in Fig. 1, and valve 10 is wide open.  When it is desired to boil the sugar under atmospheric pressure, cock 8 is turned to the position shown in Fig. 2; and the extent of opening of valve 15 is so restricted that it only allows the boiled sugar to pass through, while the water vapour passes to the open air through conduit 7; and atmospheric pressure thus prevails in chamber 4. By turning cock 8 to the position shown in Fig. 1 and by throttling the valve 10, any required intermediate pressure between vacuum and atmospheric pressure can be produced in chamber 4.  Discharge vessel 26 remains in contact with hood 19 so long as the vacuum prevails therein; but when air valve 25 is opened, vessel 26 swings away from the hood, and may be substituted by empty vessel 27.  Three-way cock 8 may be replaced by a back pressure valve (Fig. 3) which automatically closes conduit 7 against the atmosphere when valve 10 is wholly or partly open.  When valve 10 is closed the water vapour is discharged to the atmosphere from chamber 4 through pipe 7 and the back pressure valve.
Patent GB-449492-A (GB)
Title: Improvements in and relating to the reconstruction of locomotives
IPC: B61C1/10
Filed: 1935-03-06
Abstract: 449,492. Steam superheaters. LENTZ, H., 74, Kurf³rstendamm, Halensee, Berlin. March 6, 1935, No. 7068. Convention date, March 6, 1934. [Class 123 (iii)] [See also Group XXVI] To convert a locomotive into one with a high degree of superheat the return ends of the superheating-tubes in the smoke tubes are cut off and replaced by welded-on ends of high-grade refractory material such as chrome-molybdenum steel or chrome-aluminium steel. The welded-on ends of the superheating-tubes may extend up to or into the firebox. The tubes may be of the Field type as shown at 4, 5 in Fig. 2, or they may be simple or twisted return tubes 7, Fig. 4. Twisted sheet-metal guides 6 between the superheating-tubes and smoke tubes guide the gases. Specifications 393,435 ; and 413,485 and 449,493, [both in Group XXVI], are referred to.
Patent GB-579903-A (GB)
Title: Improvements in blowout preventers for wells
IPC: E21B33/06
Filed: 1944-04-17
Abstract: 579,903. Wells. POLLAK, J. E. (Cameron Iron Works). April 17, 1944, No. 7104. [Class 85] [Also in Group XXIX] A blow-out preventer for wells comprises a body 2 connected to the well head and provided with chambers 5 normally closed by heads 7 provided with yokes 14 and each secured by four studs 8 and hammer lug nuts 10 ; the chambers 5 contain rams 27 connected by stems 20, cross arms 18 and rods 35 to oppositely moving pairs of double-acting pistons 41 in cylinders 38, the stroke of the pistons being such that, on disconnecting the heads 7, they may effect withdrawal of the rams from the chambers. Spindles 16 are threaded in the yokes 14 and may act through the cross arms 18 to close the rams about a well pipe, or to lock the rams. Each ram 27 is detachably and non-rotatably held to its stem 20 by means of a head 26 and a non-circular lug on the stem engaging slots in the ram ; a threaded socket 50 permits attachment of lifting means to the ram. Each ram has grooves 52 to receive lubricant, and a slot 61 in the lower part of each ram allows partial equalizing of well pressures thereon ; further, each ram has a packing 53 extending across its front face and along each side, and another packing 54, Fig. 6, of rubber &c. with a spring insert 57, packing 54 being sprung into a groove in the ram and engaging the ends of the side limbs of packing 53. U.S.A. Specification 2,194,255 is referred to.
Patent GB-1453764-A (GB)
Title: Apparatus for inscribing or embossing strips or material
IPC: B41J3/38
Filed: 1974-02-18
Abstract: 1453764 Selective embossing PRONTER-WERK ALFRED GAUTHIER GmbH 18 Feb 1974 [9 March 1973] 7310/74 Heading B6F A strip embossing tool comprises an actuating member 22 pivotally mounted in a bearing body 26 which is rotatable between a first position in which the actuating member 22 cooperates with embossing dies and a second position in which the member cooperates with cutting means 48. A strip 42 is selectively embossed by depressing an operating bar 12b with the actuating member 22 in its first position. After each operation, a pawl 62 engages a ratchet wheel 58a to advance the strip. When the embossed strip is to be severed, a lever 34 is shifted to the position S shown, whereby a slide 30 shifts the actuating member to its second position. A spring detent 36 holds the slide in its new position. Then, on depressing bar 12b, the actuating member 22 engages the cutting means. A projection 30e on the slide 30 disengages the pawl 62 from the ratchet wheel to prevent strip advance. During a cutting operation, a projection 12d disables the spring detent to allow the slide 30 to move to its initial position under bias of a spring 32.
Patent GB-434816-A (GB)
Title: Improvements in or relating to starting apparatus for electric motors
IPC: H02P1/02
Filed: 1934-03-07
Abstract: 434,816. Controllers ; protective cutout arrangements. GAS LIGHT & COKE CO., and CANNON, D. V., 84, Horseferry Road, Westminster. March 7, 1934, No. 7327. [Classes 38 (iii) and 38 (v)] Overload release.-Starting-apparatus for a motor comprises a main switch or contactor, an overload trip-switch, a short-circuiting device for the trip-switch contacts, and means initially controlled mechanically by the main switch, operating automatically with delayed action to render the short circuiting device inoperative after a predetermined interval when the initial rush of current has died away. The contacts 17 of an overload release 19 are shortcircuited by the contacts 20 of a device 21 operated under the control of escapement mechanism 27 by the closure of the main contactor 12, so that the motor circuit is maintained in spite of opening of the contacts 17 during starting, but upon opening of contacts 20 at the end of a predetermined time corresponding to the time taken for the starting current to die away, the main contactor is controlled by the overload release. The main contactor operates through a spring 24, and a ratchet device 28 allows for a quick return of the contactor to the off position. In a modification the main contactor operates, through a spring and linkwork controlled by a pendulum escapement, on a normally closed switch shortcircuiting the contacts 17. Specification 6188/11, [Class 38 (iii)], is referred to.
Patent GB-137685-A (GB)
Title: Improvements in and relating to the mudguards and forks for the fornt wheels of cycles and the like
IPC: B62K25/24
Filed: 1919-03-25
Abstract: 137,685. Millar, I. P. March 25, 1919. Forks; spring devices.-A pair of metal sheets B, with their upper edges curved over the wheel and joined together, form the mud-guard. The sheets may be ribbed radially, or may be slotted. According to the Provisional Specification, the front edge of the guard may extend horizontally, instead of being circular, as shown, in order to facilitate the removal of the wheel, the spindle A<3> of which is, in that case, held in horizontal jaws. The fork is built up from a pair of channel-shaped stampings or pressings C, C<2>, Fig. 3, with a flange C<3> or spacing-piece, welded together and to the sheets B. The fork may be connected to the steering-head, represented by the line Z, in any suitable manner; for example, by two parallel pairs of links H, G carried by spindles F mounted in the fork. A leaf-spring J is secured, as shown, between each of the links H and the spindle F. A metal mud-flap L may be welded or otherwise attached to the lower edge of the sheets B.
Patent GB-1111782-A (GB)
Title: Improvements in or relating to the production of caprolactone
Inventor: HAWKINS EDWIN GEORGE EDWARD
IPC: C07D315/00
Filed: 1965-02-20
Abstract: e -caprolactone is produced by bringing maleic anhydride into contact with hydrogen peroxide obtaining a reaction product substantially free from residual hydrogen peroxide and water, and bringing the reaction product into contact with excess cyclohexanone under substantially anhydrous conditions at a temperature below 80 DEG  C. Water may be excluded from the initial reaction product by using excess maleic anhydride and/or an inert drying agent if 85% by weight hydrogen peroxide is used, or may be removed by distillation or freeze-drying, when the hydrogen peroxide is an aqueous solution of e.g. 30% by weight.  This removal preferably takes place when the hydrogen peroxide concentration reaches a minimum. The reaction with the cyclohexanone preferably takes place in solution or suspension in an inert solvent, e.g. dichloromethane or chloroform.
Patent GB-949961-A (GB)
Title: Improvements in or relating to containers
Inventor: MURPHY JOHN DESMOND
IPC: C14C15/00
Filed: 1959-03-04
Abstract: <PICT:0949961/C3/1> A drum or vat which may be used in the leather industry for washing, tanning, stuffing, softening, or dyeing purposes comprises a pair of sectionally assembled end structures comprising a pair of end frames of spoked radial rib formation, end closure plates secured to said frames, longitudinal peripheral closure plates integral with said end plates or joined to said end structures, and axially disposed hub means from which the spoke ribs radiate.  The container may be stationary, rotated, or rocked about a longitudinal axis.  It may be cylindrical or polygonal and made from plastic material containing glass fibre, glass, concrete or metal. In a preferred embodiment a cylindrical drum includes end frames of wheel-like construction, formed of five sectors which when assembled provide five spokes 2a comprising a stiffening bottom 16 of wood in a channel 17 and these spokes radiate from an internal hub plate 3a furnished with a central hole 6a.  The drum skin comprises sectors each consisting of a peripheral plate 7a and integral or joined-on end plates 12a with integral longitudinal and radial flanges 18 and 19 to which the latter are joined by a hub flange.  Each adjacent spaced pair of longitudinal flanges 18 are located against longitudinal frame members 21 also of channel formation with filling means 22.  The drum is furnished with an opening 9a and a sliding door 10a.