baber/WOPTO huggingface dataset:
Patent GB-1452878-A (GB)
Title: Derivative of n- 3,4,5-trimethoxy cinnamoyl- piperazine its acid addition salts is process of preparation and its therapeutic app lication
IPC: C07D207/26
Filed: 1975-06-30
Abstract: 1452878 2 - Oxo - 1 - [4 - (3,4,5 - trimethoxycinnamoyl)piperazin - 1 - ylacetyl]pyrrolidine DELALANDE SA 30 June 1975 [17 July 1974] 27502/75 Heading C2C The invention comprises the title compound and its acid addition salts, and a process for making it by reacting 1-(3,4,5-trimethoxycinnamoyl)piperazine with 1-chloroacetyl-2-oxypyrrolidine in presence of Na 2 CO 3 , in EtOAc medium under reflux. Therapeutic compositions having vasodilatory (peripheral and coronary), hypotensive and antihypertensive activity, comprise the title compound, and may be administered orally, parenterally or rectally.
Patent GB-1470736-A (GB)
Title: Amplifier circuit
IPC: H03F1/22
Filed: 1975-06-30
Abstract: 1470736 Transistor amplifiers MOTOROLA Inc 30 June 1975 [19 Aug 1974] 27524/75 Heading H3T An amplifier requiring relatively low supply voltage, e.g. an integrated IF amplifier, comprises three stages 25, 30, 35 having their signal paths 26, 28, 31, 33, 36, 38 in series, and having the supply path of 30 in parallel with that of 25 and 35 in series, a transistor 47 with its emitter-collector path connected between the respective supply return terminals 27, 32 of 25 and 30, and a constant D.C. source 49, whereby 49 determines the total current of the amplifier and 47 determines the division of current between the stages. If 29 and 37 are directly connected as shown the relation B = A + C applies, where A, B and C are the potential differences between return terminal 27 and input 26, input 26 and output 28, and output 28 and receiving terminal 29 respectively assuming the three stages are identical; the relation B>A + C applies if 29 and 37 are connected by a load. Each stage, e.g. 25 is a cascade circuit comprising a common emitter transistor 40 feeding a common base transistor 41 having a load 42, the base of 41 being earthed for the signal via diode 55 and capacitor 54. An adjustable resistor 46 equalizes the D.C. through 40 and 47. Stages 30 and 35 are similar to 25, the elements 62, 63 in 35 being adjustable to vary the output impedance of the amplifier. A current mirror biasing circuit which produces a constant current through transistor 49 and constant potentials at terminals 100, 101 includes a transistor 90 with a split ring collector 93, 94 the currents I through the portions of which are equal. Transistor 95 has twice the junction area of 96, and at equilibrium the lower base-emitter P.D. across 95 is compensated by the drop due to I flowing through 97, 98. The magnitude of I, and hence the gain of the amplifier, is variable by adjusting 98, and the temperature coefficient of 98 is chosen so that the change of its resistance with temperature stabilizes the gain of the amplifier. The diode chain 81-84 also carries a current I, so that 3I passes through diodeconnected transistor 99. Transistor 49 has 4 times the junction area of 99, so that a constant current of 12I flows through 49. The baseemitter P.D. of 49 or 99 provides the stable potential of terminal 100. The potential of terminal 101 is higher than that of 100 by the base-emitter P.D.'s of 75, 81-84 plus the drop across resistor 80 carrying the stabilized current I. Transistor 75 provides a low impedance A.C. path to earth from terminal 101 while maintaining the D.C. offset. Transistors 40, 47 have more base metallization than usual ("double striped base") giving them a low noise figure; the noise voltage produced by transistor 49 is eliminated by A.C. by-pass capacitor 48.
Patent GB-649426-A (GB)
Title: Improvements in weighting motions for looms for weaving
IPC: D03D49/08
Filed: 1948-10-23
Abstract: 649,426. Let-off motion for looms. POLLARD, E., ROBINSON, A. W., PATE, H., and WHITTAKER, G. Oct. 23, 1948, No. 27605. [Class 142(ii)] In a let-off motion levers 14 by which chains 10 are tightened around the warp beam ruffles are attached to a floating link 15. The link 15 is secured by a link 21 to a lever 17 pivoted at 18 to the loom frame and carrying a weight 20.
Patent GB-643656-A (GB)
Title: Improvements in or relating to cathodes for electron discharge devices
IPC: H01J1/20
Filed: 1946-09-14
Abstract: 643,656. Cathode materials. GITTINS, J. F., WILSON, C. P. LEA-, and BUCKINGHAM, J. Sept. 14, 1946, Nos. 27642/46 and 5524/47. [Class 39 (i)] A thermionic cathode or cathode support comprises a main body 1 of thoria, zirconia or other refractory oxide bonded to a support 6 of molybdenum, tungsten or tantalum by a zone or zones of material consisting of a mixture of a refractory oxide and one of these metals. The body 1 may be of thoria, zone 3 a mixture of 75 per cent thoria and 25 per cent molybdenum, zone 4 50 per cent thoria and 50 per cent molybdenum, zone 5 25 per cent thoria and 75 per cent molybdenum, and 6 may be molybdenum. A metal extension 8, which may be of tungsten, may be provided by joining the cathode to a former and depositing a tungsten film about five-thousandths of an inch thick on the whole by known processes. The former is then dissolved by acid and the tungsten covering the cathode surface is removed by grinding. Specification 643,655 is referred to.
Patent GB-675639-A (GB)
Title: Nozzle box for a gas turbine engine
IPC: F01D9/02
Filed: 1950-11-13
Abstract: 675,639. Gas turbine plant. SACHS, R. M., SECORD, L. C., and ROE CANADA, Ltd. A. V. Nov. 13, 1950, No. 27660/50. Class 110 (iii) A nozzle-box for a gas turbine engine comprises apertured inner and outer casings 21, 20 interconnected by hollow struts 30 and an annular cover 35 having a cylindrical outer wall and inwardly directed flanges secured as by welding to the outer casing to define an annular passage therewith which communicates, through the apertures and struts, with a source of cooling air surrounded by the inner casing and has an air discharge outlet therefor. The nozzle box is connected to the gas turbine and the jet pipe by flanges 22, 24 respectively. Each port 23 has a liner 27 with an outlet 28 in the form of annulus sector to form with the other outlets 28' an annulus facing the nozzle guide vanes 26. The cooling air is exhausted through pipes (not shown) which are attached to pads 36 in the cover 35. Each strut is fixed to or formed integral with the casing 20 and comprises a tubular portion 30a and a U-shaped portion 30b, the legs of which are closed by a part of the wall of the casing 20. A fin 30c is secured to each port of the strut and to the casing 20. In a modification wherein the nozzle-box carries mounting pads for the main engine supports, the cooling air is discharged through two or more manifolds which are separated by the mounting pads and, if desired, interconnected.
Patent GB-206513-A (GB)
Title: Improvements relating to chimneys for lighting lamps
IPC: F21V37/00
Filed: 1923-11-03
Abstract: 206,513. Rostaing, P. Nov. 6, 1922, [Convention date]. Chimneys; securing chimneys to galleries; chimney galleries. - A chimney for paraffin and like lamps comprises a cylindrical glass portion 1 and an upper metallic portion 2 corrugated at 2<1> to support a shade. The glass portion 1, provided with heat insulating packing 6, is wedged between the metallic portion 2 and a mounting 3 fitting over a burner 7, and is held in position by rods 4 and nuts 5. For use with a straight flame a removable horizontal partition 9, having a central aperture, is arranged at a suitable level relative to the flame. The partition 9 is made of a material which is a bad conductor of heat, such as asbestos or fibre, strengthened by internal and external metallic sheathing, and is supported on theinner wall of the portion 1, or by a frame, or otherwise. In the form shown in the Figure, projections 14 on the partition 9 rest on an inner circular ledge 13 formed on the glass portion 1.
Patent GB-964104-A (GB)
Title: Improved brake valve device
Inventor: MOORE IVAN GEOFFREY
IPC: B60T15/04
Filed: 1960-08-11
Abstract: 964,104. Fluid-pressure braking. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. July 21, 1961 [Aug. 11, 1960], No. 27803/60. Heading F2F. A fluid pressure braking apparatus comprises a brake pipe 12 and a brake valve device 11 which includes a variable choke 23 arranged to regulate the pressure in an equalising reservoir 20 under the control of the device 11 and thereby vary the pressure in the brake pipe 12 and effect brake application on release, the variable choke comprising a graduated obturator 24, suitably tapered or stepped, which is arranged to be displaceable within a port 25 connectible with the equalising reservoir 20. In the construction shown, the obturator possesses valve seats 30, 34 and is secured to the armature of a lock-out electromagnet 32 so that, in normal use, the electromagnet is energized and valve seat 34 seals aperture 25 by seating ring 33. Spindle 28 of brake handle 29 carries a switch 15 which controls an exhauster choke magnetic valve 14 and a contactor unit 16 which provides an appropriate braking code. A cam 27 is also attached to spindle 28 which, if the electromagnet is de-energized, is engaged by end 40 of obturator 24 thus opening port 25 and allowing air to leak into brake pipe 12 and thus apply the brakes. A further cam 43 carried by spindle 28 normally closes a poppet valve 42 which, when the brake handle 29 is thrown into the emergency brake position is opened. The pneumatic system also comprises an exhauster pump 13, a snifter valve 41, an air admittance valve 21, a code unit 17 for detecting the degree of braking required from a three-wire system, a change-over valve 19 and brake cylinder 18. Specification 917,390 is referred to.
Patent GB-788314-A (GB)
Title: Improvements in jet-propelled aircraft
IPC: B64C25/42
Filed: 1954-09-27
Abstract: 788,314. Jet propelled aircraft. HOWARD, H. A. Nov. 23, 1955 [Sept. 27, 1954], No. 27826/54. Class 4. A jet propelled aircraft having a main engine 1 housed in the fuselage 2, has an auxiliary engine 4 mounted on each wing-tip for rotation about an axis transverse to the wing and engine to facilitate directional control, landing and takeoff. Each engine 4 is secured to a shaft 9 mounted in bearings 7, 10 and 11 in the respective wing and is adapted to carry fuel and ignition lines 15. The inner end of each shaft carries a toothed gear 12 engaged by a pinion 13 driven by a motor 14 which may be electric or hydraulic. The engines 4 may be moved in unison or differentially by the interposition of a differential gear between pinions 13 or two motors may be used. To assist in the angular deflection of the engines 4 deflector vanes or the like may be provided to divert part of the jet and give it a component in the direction of rotation required. It is stated that angularly dajustable engines may be mounted in recesses in the trailing edges of the wings or above or below the wings. The main engine 1 may be pivoted.
Patent GB-1207504-A (GB)
Title: Diode assemblies
Inventor: ALLSO PHILIP WILLIAM
IPC: B23K35/30
Filed: 1967-06-16
Abstract: 1,207,504. Semi-conductor devices. JOSEPH LUCAS /INDUSTRIES) Ltd. 24 May, 1968 [16 June, 1967], No. 27895/67. Heading H1K. [Also in Division C7] A semi-conductor diode wafer 19 is enclosed in a container comprising a conductive baseplate 12 carrying the wafer 19, an insulating cylinder 11 secured thereto, and a washer 14 and conductive cap 24 sealing the top of the cylinder 11. A lead 22 extends through the cap 24 in sealing engagement therewith. In the embodiment the Ni-plated Cu base-plate 12 and Ni-plated mild steel washer 14 are first brazed to the alumina cylinder 11 using a 35% Pb, 18% Cu, 42% Ag, 5 % Ti alloy or a eutectic Ag/Cu mixture on a Ti core, in an atmosphere of argan cracked ammonia or forming gas. After cooling, the remainder of the device is assembled by soldering in cracked ammonia or forming gas using shims 18, 21, 26 of Sn/Pb/Ag alloy and a solder ring 27 which sits initially in a conical recess 28 at the outer end of a bore through the cap 24 accomodating the lead 22. The cap 24 and lead 22 both comprise Ni-plated Cu.
Patent GB-1042626-A (GB)
Title: Unit for the preparation of storable instant beverages
IPC: B65D51/28
Filed: 1964-07-07
Abstract: 1,042,626. Compartmented containers; container closures. A. MANARESI. July 7, 1964, No. 27911/64. Headings B8D and B8T. A beverage is stored in separated powder and liquid form, the powder being contained in a capsule 1, Fig. 2 (not shown), of a hollower stopper T and the liquid in a bottle B, Fig. 1 (not shown), to which the stopper is fitted. The bottom of the capsule is removable by means of a cylindrical hollow metal cutter 2 slidable within the capsule and having an out-turned flange 22 at its upper end spaced from a flange 12 on the capsule by means of a removable ring 3. A pulltab and weakened areas are provided on the ring, Fig. 3 (not shown). The stopper is initially protected by a capsule C which is torn off before the tab on the ring can be pulled, Figs. 5-6 (not shown). The stopper may be of synthetic resin, e.g. polyethylene or polyvinyl.
Patent GB-388470-A (GB)
Title: Improvements in reinforced concrete girders
IPC: E04C5/065
Filed: 1931-10-08
Abstract: 388,470. Girders ; floors. BAUER, F., 19, Johannesstrasse, Stuttgart, Germany. Oct. 8, 1931, No. 27927. [Class 20 (iv).] A reinforced-concrete girder constructed as a finished article of manufacture comprises a hollow sheet-metal body a capable of supporting the desired load provided that its shape remains unaltered, and a concrete covering r at least partly surrounding the body a and adapted to prevent deformation thereof. As shown, the body a comprises an inverted channel member curved at the top and provided with inturned flanges e at the bottom in which tension members f are located, strengthening ties g being provided and the whole being embedded in the concrete r. In place of the individual members g, a base may be provided consisting of a continuous sheet of metal or a sheet metal or wire network. In a modification, the top part of the concrete mass is replaced by projecting webs or hoop-shaped members for engagement with a mass of concrete which is applied when the girders are in position. In simpler forms, the girder comprises a metal tube of any desired cross-section, strengthened in the maximum compression and tension zones if desired, and entirely embedded in concrete. End members of concrete may be provided, also transverse strengthening members of metal. Suitable dimensions are :-thickness of metal, 1 per cent of depth of girder with 10 per cent tolerance ; cross section of hollow body, at least ten times the depth (when expressed in corresponding superficial and linear units) ; length of girder, up to 25 times depth. In the form shown, the radius of the upper curved part is kept the same for different depths in order to facilitate production. In use, the girders may be assembled side by side to form a floor, or may be separated by hollow blocks p. as shown in Fig. 16.
Patent GB-778278-A (GB)
Title: An improved device for digging and moving soil and other loose material
IPC: E02F3/76
Filed: 1955-09-30
Abstract: 778,278. Earth-scraping apparatus. BATENBURG, L. VON. Sept. 30, 1955 [Oct. 13, 1954], No. 27947/55. Class 68 (1). A scraper blade attachment for a tractor comprises a beam 1 to the ends of which are secured the upper parts 2, 21 of front and rear turntables, the lower parts 3, 22 which can be rotated with respect to the upper parts being pivotally connected to the hydraulically actuated lift linkage of the tractor and supporting a blade 19, 20 respectively. Bolts 34 passing through a slot 36 in a channel at the back of the blade 19, 20 and slots 33 in brackets 30 mounted on a pair or arms 27 for rotation about the axis of a cross member 28 and securable by bolts 29a to said arms on the lower part 22 of the rear turntable permits of vertical and lateral adjustment of the blade relative to the brackets 30 and of the securing of the blade thereto and angular adjustment about the axis of the member 27 and about the axis of rotation of the rear turntable. The linkage is connected to trunnions 4 on the lower part 3 of the front turntable and to a goose neck yoke secured to a cylinder 8 passing through the part 3 to rest on an angle 9 secured thereto. The upper part 2 of the turntable rotates about the cylinder 8. Pins 7, 18 passing through bosses 6, 17 on the beam 1 and the part 21 can engage in holes in the parts 3 and 22 to lock the turntables against rotation.
Patent GB-630111-A (GB)
Title: Improvements relating to turret lathes and like machine tools
IPC: B23B3/18
Filed: 1945-03-28
Abstract: 630,111. Turret lathes. POTTER & JOHNSTON MACHINE CO. March 28, 1945, No. 28059/47. Convention date, May 26, 1944. Divided out of 630,068. [Class 83 (iii)] A turret lathe or like machine-tool comprising a rotatable spindle and a tool-carrying slide reciprocable towards and away from the spindle has means for reciprocating the slide including a cam disc rotatably mounted on a vertical axis and operatively connected with the slide, the cam disc being positioned between and above the guides carrying the slide and within the depth thereof. The cam disc 135 is carried on the upper end of a shaft 154 driven by worm-gearing from a feed-shaft 30, Fig. 1. The shaft is carried in anti-friction bearings 157 between the guideways 136, 137, for a turret slide 23. The cam disc is arranged within the depth of the turret slide which is of box-like form, and a cam groove 135a therein engages a follower 147, Fig. 4, secured to the turret slide in a removable anti-friction mounting 163. For a more complete abridgment of the turret lathe and the locking and clamping device for the turret, Specifications. 630,068, 630,107 and 630,109 are referred to.
Patent GB-530672-A (GB)
Title: Improvements in or relating to finish-cutting metal surfaces
IPC: B23D79/00
Filed: 1939-10-18
Abstract: 530,672. Milling ; cutters. NATIONAL BROACH & MACHINE CO. Oct. 18, 1939, No. 28094. Convention date, Dec. 19, 1938. [Class 83 (iii)] In a method of finish-cutting metal surfaces of revolution by means of a rotary tool 16 with inclined cutting teeth the work 11 and tool are rotated in line contact, the work having a surface speed of 7¢-90 feet per minute and the cutter a surface speed of 150-450 feet per minute, the speeds being selected according to the inclination of the cutter teeth to cause the line of cut to be nearly parallel to the work axis while the cutter is fed by a plunge cut. The feed may be gradually reduced as full depth is approached, being interrupted while the operation is continued for a short time to finish the work. In some cases the feed may be tangential to the work. The angle of cut, defined as the angle between the path of removal of metal by a single cutting edge and a plane passing through the work axis is shown at a, Fig. 6, and is increased by increasing the work surface speed or by increasing the inclination of the cutter teeth, and is preferably between 30 minutes and 20 degrees, being best maintained at about 1 degree 30 minutes. The ratio between surface speed of cutter and surface speed of work is preferably about ten to one. The inclination of the cutter teeth is generally between 3 degrees and 30 degrees preferably between 20 and 25 degrees. The cutter and work speeds may be different for different materials but for steel the cutter surface speed may be 150-450 feet, preferably 300-350 feet per minute and the work surface speed is 7¢-90 feet, preferably 30 feet per minute. The pitch of the cutter teeth is about inch at the small end. Fig. 2 shows a set-up for shaving a cylindrical surface 21 with a conical cutter 25 on an inclined axis 27. The spiral teeth on the cutter are arranged so that the cut of each tooth begins at the small end. The feed may be either plunge-cut or tangential and in the latter case the full depth is preferably reached when the tool and work axes are co-planar. In modifications a conical surface may be shaved by a conical cutter or by a cylindrical cutter. In another modification. Fig. 5, a flat radiallyextending surface 51 is shaved by a cutter 56, the line of contact being along a radius. In all cases the feed is preferably at an angle to the work surface in order to obtain a firmer control of the feed. The relationship between the surface speeds of tool and work, helix angle of tool and angle of cut are shown in Fig. 9. In the triangle ABC, H is the helix angle of the cutter, BC the surface speed of the tool (St) AD or AD<SP>1</SP> the surface speed (in either direction) of the work (Sw) then DC or D<SP>1</SP>C gives the angle of cut a or a<SP>1</SP> and tan a The teeth 93 have narrow unrelieved lands 92 of about .002 to .010 inches width immediately behind the cutting edge and spaces 96 provide for chip disposal.
Patent GB-1276676-A (GB)
Title: Liquid storage tanks support means
IPC: B60P3/22
Filed: 1969-06-03
Abstract: 1276676 Carrying liquefied gas TECHNIGAZ 3 June 1969 [28 June 1968 24 Dec 1968] 28101/69 Heading B7A [Also in Divisions F2 and F4]  The self-supporting spherical or horizontal cylindrical wall 1, Fig. 1, of a cold liquefied gas storage container has a plurality of outwardly horizontal extending brackets 4 rigidly secured thereto at spaced intervals in the mean horizontal plane 3 of the container and each bracket 4 is pivotally coupled at two outwardly spaced points 10, 12 to fixed support means 15 whereby thermal movement of the container is accommodated. The coupling means may comprise links 8, 9 pivoted at 10, 12 to bracket 4 and at 11, 13 to a bar 7 which in turn is pivotal at 14 to the bracket 15 which is secured to a foundation 16. Links 8, 9 are thus under compression and tension respectively. In a modification spaced idler rollers 22, 23, Fig. 4, carried by and on lower and upper sides of bracket 4 bear on fixed tracks 24, 25. The tracks may form horizontal arms of a downwardly inclined beam (31), Fig. 5 (not shown), pivoted at its lower end to the foundation bracket (15<SP>1</SP>). In a further modification the links 8, 9, Fig. 12, extend upwardly from arm 4 to the bar 7 which in turn is pivotally suspended from the bracket 15 secured to a ship's plate 116. The lower half of the container bears on powdered heat insulation material 142 whereas the upper half is sheathed by polyurethane 142<SP>1</SP>. Fig. 6, shows a horizontal cylindrical container 32 supported lengthwise in a ship by supports 2 the brackets 4 of which lie in the mean horizontal plane of the cylinder and the linkages of which are as shown in Fig. 1. Further supports 2a, 2b support the cylinder during rolling and pitching of the ship and stops 40 engage recesses in the ships structure.
Patent GB-1499646-A (GB)
Title: Process for the addition of organic acids to acetylenic compounds
IPC: C07C7/152
Filed: 1976-07-06
Abstract: 1499646 Removing acetylenic compounds from hydrocarbons SNAMPROGETTI SpA 6 July 1976 [8 July 1975] 28110/76 Heading C5E Acetylenic compounds are removed from hydrocarbon mixtures containing them by contacting the mixtures with an organic acid in the presence of an acidic ion-exchange resin, the acidic groups of which have been substantially totally exchanged with both mercuric ions and alkali metal or alkaline earth metal ions, the acetylenes forming an addition compound with the organic acid. The esters formed may be removed by rectification. The preferred acid is acetic acid. The process may be carried out at 20-120 C. in the liquid or gaseous phases. The process may be used to purify ethylene, propylene, butadiene or mixtures thereof.
Patent GB-460315-A (GB)
Title: Improvements in or relating to coupling devices for use in connection with scaffolding and the like
IPC: E04G7/18
Filed: 1935-10-11
Abstract: 460,315. Scaffold clamps. BRITISH STEEL PILING CO., Ltd., and BEATTIE, R. C. Oct. 11, 1935, No. 28118. [Class 20 (ii)] A scaffold clamp of the type comprising a U-shaped sleeve adapted to embrace one scaffold member A, and a bridge 4 with clamping screw 5 disposed on the arms 1 of the sleeve to effect clamping of the other scaffold member B in pockets 3 provided in the arms, has the bridgepiece 4 rigidly and permanently attached to the arms 1.