baber/WOPTO huggingface dataset:
Patent GB-735190-A (GB)
Title: Improvements in a hot gas turbine
IPC: F02C7/18
Filed: 1952-05-02
Abstract: 735,190. Gas turbine plant; centrifugal compressors. WIRTH, E. R. May 2, 1952 [May 10, 1951], No. 11112/52. Classes 110 (1) and 110 (3). Also in Group XII] A gas turbine engine comprises an air compressor and a turbine rotor, the first stage of the turbine being constituted by a wheel having blade passages which constitute mixing chambers. Air is discharged from the compressor to the mixing chambers through a nozzle outlet at one circumferential point and hot gas is delivered to the mixing chambers from a hot gas chamber at a second point, a stationary baffle device extending between the air nozzle outlet and the outlet from the hot gas chamber on the outlet side of the mixing chambers. The baffle device prevents air flowing out of the mixing chambers before the hot gases have been admitted and mixed with the compressed air. In Fig. 1, air enters the compressor b through the inlet b<SP>1</SP>, the air compressor containing a liquid of high boiling-point, for example oil, which circulates through the passage C<SP>1</SP> and back to the rotor through the vanes c<SP>11</SP> while the air discharges through the passage d. Some air passes straight through the passage h<SP>1</SP>, Fig. 3, and nozzle outlet h<SP>11</SP> into the mixing chambers i<SP>1</SP> comprised by vanes on the turbine rotor wheel i, while the remainder of the air passes through a port d<SP>1</SP> to a second stage compressor e. The further compressed air enters the chamber f and then into the combustion chamber h where fuel is admitted through an injector g and ignition is caused by a spark plug g<SP>11</SP>. The combustion gases discharge through a nozzle and enter the mixing chambers i<SP>1</SP> where they mix with the air admitted through the nozzle outlet h<SP>11</SP>. The baffle devices on the outlet side of the mixing chambers il is shown at k<SP>1</SP> in the fixed blade-ring k. A further row of blades ill is mounted on the wheel i and further rotor wheels l are disposed downstream of the wheel i. The compressor casing is provided with a water jacket 6<SP>11</SP>. In a second embodiment, the second stage compressor and the combustion chamber are omitted and hot waste gases are admitted through a nozzle into the mixing chambers.
Patent GB-139359-A (GB)
Title: Improvements relating to mechanical puddling in the manufacture of wrought iron
IPC: C21C3/00
Filed: 1919-05-05
Abstract: 139,359. Maplethorpe, H. May 5, 1919 Charges, agitating.-In a machine for puddling iron, a reciprocating tool is so mounted that it can turn in horizontal and vertical planes and also about its own axis. The apparatus shown comprises a carriage h, on which is mounted, in a vertical bearing g, a rotatable support f formed with trunnion bearings e for a cylinder band guideway a. The tool c, which is secured to the piston-rod, is of square section and passes through a rotatable head d. The various rotary. movements may be effected by hand or power gearing.
Patent GB-1184102-A (GB)
Title: Improvements in or relating to the Control of Aircraft
IPC: B64C9/38
Filed: 1967-03-09
Abstract: 1,184,102. Controlling aircraft. M.A.N. TURBO G.m.b.H. 9 March, 1967 [15 April, 1966], No.11252/67. Heading B7G. The exhaust gases of a gas turbine engine, may be passing through a diffuser 1 with a rectangular outlet section, are divided into two equal streams which are each turned through 90 degrees in opposite directions by an elbow 3, 4, each stream being further subdivided into two jets, so that the mass flows and velocities of the front left and rear right jets are equal, but are directed in opposite directions. In Fig. 1 the streams are split by wedges 5, 6 which are mounted on an arm 8. In Fig. 2 the streams are split by bifurcations 12, 13, 14, 15 of the elbows 3, 4 and the jet mass-flows adjusted by shutters 5, 6 mounted on an arm 8. In both cases the arm 8 is pivoted about an axis 9 to adjust the relative mass flows and thereby produce a variable yawing moment (without a free force) on an aircraft (e.g. a helicopter) in which the apparatus is mounted. The arm 8 may be moved by an actuator.
Patent GB-581573-A (GB)
Title: Improved manufacture of vinyl halides
IPC: H02K49/10
Filed: 1943-07-12
Abstract: In the manufacture of vinyl halides by passing acetylene and hydrogen halide over mercury or a mercury halide, the catalyst is disposed on a continuous body of a non-volatile support so that any catalyst vaporised in the reaction zone is condensed in another part of the support.  For example, the reaction tube may contain four grams of mercury or 15.4 grams of gas black, sandwiched between two 40 gram layers of gas black.  The direction of flow of the reactants may be periodically reversed.ALSO:In the manufacture of vinyl halides by passing acetylene and hydrogen halide over mercury or a mercury halide, the catalyst is disposed on a continuous body of a non-volatile support so that any catalyst vaporised in the reaction zone will be condensed in another part of the support.  For example, the reaction tube may contain 4 grams of mercury on 15.4 grams of gas black, sandwiched between two 40 gram layers of gas black.  The direction of flow of the reactants may be periodically reversed.
Patent GB-592678-A (GB)
Title: Improvements in the heels of shoes and like articles of footwear
IPC: A43B21/00
Filed: 1945-05-04
Abstract: 592,678. Heels for shoes. WALPER, C. O. May 4, 1945, No. 11335. Convention date, May 12, 1944. [Class 17 (ii)] The tread face of a shoe heel is evenly and upwardly inclined from the inner forward corner 13 diagonally across to the outer rear region to throw forwardly water cast from the heel in walking, and to prevent it running back on the lower inner heel rim. The tread surface is preferably extended on its inner side to form a ledge 14 to direct water from the inner side of the heel to the corner 12 and tip 13. Specifications 561,437, 570,969 and 571,260 are referred to. The Specification as open to inspection under Sect. 91 comprises also constructions wherein a cavity or grooves are provided in the forward corner of the heel to prevent the running back from the tip of the last drop. -This subjectmatter does not appear in the Specification as accepted.
Patent GB-1269574-A (GB)
Title: Fence dropper
Inventor: GOODALL MAURICE
IPC: E04H17/10
Filed: 1969-03-04
Abstract: 1,269,574. Fence droppers. SWYFTITE Ltd. 23 Feb., 1970 [4 March, 1969], No. 11342/ 69. Heading E1B. A fence dropper 10 comprises a number of spaced pairs of wire receiving loops 11, 12, the upper of which is shown locating a fence wire 13 locked in position by a locking bar 14, the locking bar and the dropper each being formed with a locking loop 16 or 15 respectively.
Patent GB-473898-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T8/32
Filed: 1936-04-21
Abstract: 473,898. Fluid-pressure brakes. TOMLINSON, A. V. April 21, 1936, No. 11386. [Class 103 (i)] Fluid-pressure brakes controlled by a train pipe 1, are also controlled by an additional train pipe 2 extending throughout the train, the pressure in which is controlled in accordance with the speed, the retardation, or the acceleration of the vehicle. The pipe 2 is supplied with fluid under pressure from a reservoir 5 through a valve 6 which comprises an inlet valve 8 and an exhaust valve 9 operated by a piston 7 subject to the opposing action of a centrifugal device 11 driven from a vehicle axle and the pressure in, the pipe 2. The fluid from the reservoir 5 also passes through a restricted passage in a choke 13 and a pressure limiting valve 14 which closes when the pressure attains a certain value in the valve 6. The brake cylinder is supplied on brake application from a reservoir 24 by a relay valve 22, which is controlled by the pressure fluid supplied from the triple valve 23 to a chamber 30 in the valve between diaphragms 26, 27, and also by the pressure fluid supplied from the triple valve 23 through a speed control valve 37 to a chamber 29 of the valve 22. The valve 37 is controlled by the pressure in the pipe 2. Valves 22, 37 are self-lapping. A modified form of the invention comprises two brake cylinders, one supplied directly by the triple valve and the other from the reservoir 24 through a relay valve controlled by fluid supplied from the triple valve under the control of the speed control valve. In a modification of this form the speed control valve supplies the second brake cylinder directly from the triple valve through an economiser valve which prevents the supply until it attains a predetermined value, and the piston of the second cylinder is connected to the rigging of the first cylinder by a clutch which allows the piston of the first cylinder to move without moving the piston of the second cylinder. In a further modification the arrangement shown in the Figure is modified by an additional smaller brake cylinder supplied directly from the triple valve through a pressure limiting valve adapted to cut off the supply at a low value, this cylinder being only adapted to apply the brake blocks to the wheels. An indicator to show when the pressure in the pipe 2 fails comprises an indicator arm connected to a stem subject to the opposing pressures of the pipe 2, and the pressure supplied by a centrifugally controlled valve similar to the valve 6 from the reservoir 5.
Patent GB-559379-A (GB)
Title: Improvements in or relating to high aperture photographic objectives
IPC: G02B9/34
Filed: 1942-08-14
Abstract: 559,379. Lenses. KODAK, Ltd. Aug. 14, 1942, No. 11416. Convention date, Oct. 8, 1941. [Class 97 (i)] In a high-aperture photographic objective comprismg four air-spaced components, the outer ones being positive and the inner ones compound menisci highly concave towards one another, the rear component is a positive doublet, preferably meniscus and concave to the front, and comprises a positive element VI cemented to the front of a negative element VII, the refractive index of element VI being greater than that of element VII by more than 0.12, and preferably by more than 0.15. The third component may be a cemented doublet IV, V of total thickness less than F/10, F being the focal length of the lens, the element V having a refractive index greater than 1.7 and greater than that of element IV by at least .05 as set out in Specification 548,255 ; the radius of R2 is then preferably greater than F/2 and less than 2F. The front surface of the rear component may have a radius R9 greater than 2F, and the rear surface R10 may be convex to the rear. Data for one example are set out. Specification 548,252 also is referred to.
Patent GB-542503-A (GB)
Title: Improvements in or relating to apparatus for the treatment of yarn packages
IPC: D06B9/06
Filed: 1940-07-10
Abstract: 542,503. Gas treatment of yarn. TAYLOR, W. I. July 10, 1940, No. 11470. [Class 15 (i)] Apparatus for blowing gas through yarn wound on bobbins comprises a clamp adapted to close the bore of the bobbin and fitted with a valve in a compressed gas supply adapted to be opened by placing the bobbin in the clamp. The clamp comprises a rubber pad 2 on to which the bobbin is clamped by a cam 6 and spindle 7 carrying a second rubber pad 8. The pad 2 has a central hole 11 in which is the valve 13 the stem 14 of which is depressed to open the valve by the flange of the bobbin. The bobbin may have peripheral grooves 19 in communication with radial perforations 18 arranged midway of the height of the bobbin. In a modification the perforations are near the top of the bobbin or are distributed over its height, the grooves in this case being omitted.
Patent GB-1506621-A (GB)
Title: Electric arc welding
IPC: B23K9/095
Filed: 1975-03-19
Abstract: 1506621 Electric arc welding KONGSBERG VAPENFABRIKK A/S 19 March 1975 [21 March 1974] 11474/75 Heading B3R [Also in Division G3] In a method of are welding, e.g. submerged arc MIG and MAG welding, a dimension of the area to be welded, such as the root gap d, Fig. 3, or a dimension equal to the distance of said area from a reference frame, e.g. dimension x and y in surface welding Fig. 1c is continually measured in front of the arc as it proceeds along the area to be welded. A consumable control wire 6, Fig. 2, is position in the column of the are 4 to influence the size and shape of the arc, and (a) the position, e.g. height u or angle of the tip of the wire with respect to the workpiece is controlled, or (b) the feed rate of the control wire into the, arc is adjusted, in accordance with the measurements made in order to produce in said area a weld with a predetermined cross-sectional dimension, e.g. penetration depth h 1 . Fig. 1a or with b, Fig. lc. In the case where the rate of feed of the wire is adjusted, the average value of the root gap d along the weld may first be determined and the control wire is positioned according to this value and then, during welding, the measured deviation of the root gap from this value is used to control the feed of the wire. The method may be combined with conventional regulation of the welding current, rate of electrode travel, the electrical potential on or current through the control wire &c. An apparatus for performing the method may comprise a measurement unit 13, e.g. a TV camera as described in Specification 1,449,044 for measuring the root gap, a processor unit 12, a computer 11, an interface unit 10 and a control unit 7 for controlling the control wire 6 and possibly also its electrical potential or the current passing through it. The control signals may also be fed to the automatic welding set 8 through interface unit 9 for further control of welding parameters in conventional manner.
Patent GB-114775-A (GB)
IPC: G01G13/00
Abstract: 114,775. Marks, E. C. R., (Adam, H. V.). Oct. 18, 1917. Automatic-feed weighers.-Relates to automatic weighing-apparatus in which a tilting receptacle is employed, and consists in providing the receptacle with one or more partitions provided with narrow passages to prevent the too rapid discharge of the contents. In the arrangement shown, the receptacle is fitted with a partition 4 movable in guides 5 and locked by a screw 6 so that the opening 7 between the partition and the bottom of the receptacle can be adjusted. A fixed partition with adjustable openings may be employed.
Patent GB-167232-A (GB)
Title: Improvements in impregnating paper and the like with insulating compounds and the like for electrical purposes
IPC: H01B3/48
Filed: 1920-04-27
Abstract: 167,232. Claremont, E. A., and Beaver, C. J. April 27, 1920. impregnating fabrics and other materials in long lengths; single coatings; treatment prior to coating.-Paper or textile material is impregnated with electrical insulating-materials by immersing it in a weak solution of the insulating-material in a volatile solvent, for example ethylene trichloride and then immersing it in a molten bath of the insulating-material at a temperature far in excess of the boiling-point of the solvent, for example 150‹ C. An apparatus for carrying out the process comprises a tank a for the molten material arranged adjacent to a tank b for the solution and a heating-device e by which the fabric, drawn from a roll f, can be heated either at or below atmospheric pressure before passing into the solution. Between the two immersions the fabric passes through a chamber c in which some of the volatile solvent can be expelled from the fabric, and the remaining solvent is expelled in the bath a, the vapour rising into a chamber d. The vapour from the chambers c, d is withdrawn through a pipe d<1> and condensed. Excess of impregnating-material is removed from the fabric by scrapers f<2>, and the web is allowed to cool before being wound on a roll h.
Patent GB-1224148-A (GB)
Title: Triorganosiloxy endblocked polyoxyalkylene siloxane polymers
IPC: C09K23/54
Filed: 1969-03-05
Abstract: 1,224,148. Polysiloxane polyoxyalkylene esters. DOW CORNING CORP. 5 March, 1969 [1 April, 1968], No. 11670/69. Headings C3R and C3T. A polyoxyalkylene siloxane of the general formula wherein R is a C 1-6  monovalent hydrocarbon or halohydrocarbon radical free of aliphatic unsaturation, R<SP>1</SP> is a C 1-12  divalent hydrocarbon radical, R<SP>11</SP> is a C 2-4  divalent hydrocarbon radical free of aliphatic unsaturation, R<SP>111</SP> is a C 2-6  divalent or trivalent hydrocarbon radical, A is a hydrogen atom, an alkali or alkaline earth metal atom, or an ammonium or substituted ammonium radical, x is 0-100, y is 1-100, z is 1-50, arid w is 1 or 2, may be prepared by reaction of the corresponding hydroxy compound with the cyclic anhydride, followed by neutralization with the appropriate base if required. In examples there are prepared compounds of the formulµ The first three of these are neutralized with NaOMe, Et 3 N and PhNH 2  respectively.
Patent GB-1049939-A (GB)
Title: Method of fracturing a permeable subsurface formation
Inventor: GEERTSMA JAN
IPC: E21B43/26
Filed: 1964-03-19
Abstract: 1,049,939. Wells &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. March 19, 1964, No. 11717/64. Heading E1F. A formation 2 is fractured in a substantially horizontal plane 1 by injecting fracturing fluid through a passage 6 from a middle zone 9 which is at higher pressure than the lower and upper zones 8, 11, the height of the zone 9 being not greater than its diameter. The zones are formed by radially extensible packers 7, 10 set in a casing 3 fixed to the formation by cement 5. Liquid may be removed from the zones 8, 11 and the casing may be thinner than usual. The passage comprises an annular slot extending through the casing and cement. The slot may be formed by a cutter or by an explosive after the casing is cemented, or a casing having a ring of slots may be cemented and the slots extended to form the slot by the pressure of the fracturing fluid. The fracturing fluid which has gel properties which diminish after a time may be followed by a fluid having a low penetration into the formation. The fluids may contain propping agents. In a modification the packers are combined with radially extensible cutters and may be rotated by the supporting string or by an hydraulic turbine.
Patent GB-959138-A (GB)
Title: Improvements in or relating to master cylinders for liquid pressure operating systems
Inventor: JUTSUN FREDERICK NETHERCLIFFE
IPC: B60T11/16
Filed: 1962-03-27
Abstract: 959,138. Master cylinders. AUTOMOTIVE PRODUCTS CO. Ltd. March 14, 1963 [March 27, 1962], No. 11725/62. Headings F2F and F2L. The axial retractive movement of a spring-loaded piston 16 towards the open end of a master cylinder 10 in a hydraulic brake or clutch control for a motor-vehicle, is limited by a stop formed by an internal flange 27 at one end of a resilient metal sleeve 28 which is split longitudinally from its other end to provide a number of fingers 29, each being bent to form an external, or internal, projection 32 to engage in an internal, or external, groove 34 in the master cylinder, the fingers being inwardly, or outwardly, deformable to enable the projections 32 to pass into, or over, the master cylinder and snap into the groove 34 therein. As shown, the projections 32 also serve to locate a piston bush 21 and seal 19 and the sleeve 28 is additionally formed with a second set of shorter fingers 31 outwardly bent to provide projections 33 which retain a flexible sealing boot 35 over the open end of the master cylinder 10, a liquid reservoir 12 being secured to the cylinder by a spring clip (Fig. 2, not shown). In Fig. 6 (not shown) a similar arrangement is provided except that all the stop sleeve fingers are of equal length and bent outwardly for engagement in the common internal retaining groove in the cylinder, the flexible boot being snapped directly into an external groove at the open end of the cylinder. In Figs. 4 and 5 (not shown), the stop sleeve is formed with inwardly bent fingers which engage in a common external retaining groove on the cylinder with the flexible boot engaging over the sleeve, the piston bush and seal being retained by a snap-ring in the cylinder on which is brazed a sheet-metal liquid reservoir can. In all the above arrangements, a push-rod 25 is retained in a bore 24 in the outer end of the piston 16 by a second resilient metal sleeve 37 (Figs. 7 and 8, not shown) which has an internal flange engaged behind the part-spherical pushrod head 26 and is split longitudinally to form two arcuate fingers which are outwardly deformed to locate and retain the sleeve in a groove 43 in the piston bore 24.
Patent GB-513752-A (GB)
Title: Improved process for the production of connectors intended for welding on to fire orsmoke tubes of steam boilers
IPC: B21C37/18
Filed: 1938-04-19
Abstract: 513,752. Making tube fittings. GROMUS, K. April 19, 1938, No. 11778. Convention date, April 17, 1937. [Classes 83 (ii) and 83 (iv)] Cupping.-Connectors for attaching tubes to smoke boxes are shown in section in Fig. 1 and are formed by first axially pressing a tube 1, Fig. 2 into a ring shaped die 2,-and subsequently forcing it out, heating it, and forcing a shaped mandrel into it. Thereafter the grooves are turned in the conical surface.
Patent GB-166380-A (GB)
Title: Improvements relating to duplex and multiplex telegraphy
IPC: H04L5/14
Filed: 1920-04-29
Abstract: 166,380. Davies, B., and Eastern Telegraph Co., Ltd. April 29, 1920. Resistances, measuring; inductances.-In a magnetic bridge used in duplex and multiplex telegraphy, in order to avoid disturbance of incoming by outgoing signals due to the effect of the latter, when a slight want of balance exists, on the hysteresis cycle through which the former take the iron of the bridge, the two arms of the bridge consist of inductances L1, L2 separately wound so that their mutual inductance is considerably less than the geometric mean of their inductances. A balance is effected by a small iron core I. This core may be moved along the axis of the bridge, or may be mounted for adjustment by rotation, Fig. 5. The width of the core I is not less than a quarter of its length so that its demagnetizing force is great. The final balance adjustments may be made on a small auxiliary bridge l1, l2, Fig. 6, joined in series with the main bridge L1, L2.
Patent GB-479106-A (GB)
Title: Improvements in or relating to distillation
IPC: B01D3/14
Filed: 1936-04-27
Abstract: <PICT:0479106/III/1> In order to separate the major portion of a low-boiling material from a mixture containing a large proportion of the said material and a small proportion of a considerably higher boiling material, the mixture is heated in an exchanger 4 before being introduced into a low-pressure evaporator 6, the liquid residue from which passes through a pipe still 12 which heats it to a high temperature and delivers it to a high-pressure evaporator 10, the vapours from which serve to heat the exchanger 4.  A small proportion, for example one per cent, of the liquid leaving through pipe 16 may be returned to the evaporators through pipes 20 and 22. The process may be used in the recovery of solvent from the mixture obtained in the solvent extraction of oils.  This mixture will, for example, be composed of a large proportion of solvent boiling at about 300 DEG  F., and a small proportion of oil boiling at about 700 DEG  F.  The pressures in the evaporators 6 and 10 may be 17 and 60 pounds absolute respectively.