baber/WOPTO huggingface dataset:
Patent GB-921967-A (GB)
Title: Catalytic hydrocarbon conversion process
IPC: C10G47/00
Filed: 1960-04-11
Abstract: Hydrocarbon distillates boiling in the range 320 DEG -850 DEG F. having a total nitrogen content of less than 10 p.p.m. are subjected to isocracking in the presence of at least 1500 SCF of hydrogen per barrel at a partial pressure of at least 350 p.s.i.g. and in the presence of hydrogenating catalyst which is nickel or cobalt sulphide supported on an active cracking catalyst acidic support at 350-700 DEG F and in a manner such that at least 500 SCF of hydrogen is absorbed per barrel of product boiling below the initial boiling point of the feed and that the zone is maintained for a period of not less than 100 hours at temperatures below 620 DEG F. while obtaining conversions of at least 20% per pass.  The feed is preferably catalytically hydrofined and is then isocracked at a LHSV of 0,2-5 and pressure up to 2,000 p.s.i.g.  The catalyst may contain 0,1-35% of the hydrogenating component calculated as metal; the support is preferably silica-alumina or may be silica-magnesia, silica-alumina-zirconia, acid-treated clay or a synthetic chabazite. This is impregnated with nickel or cobalt and sulphided, during the isocracking if desired; fluorine may also be added.  The product may be catalytically reformed in which case the product is separated into hydrogen, light hydrocarbon gases, a high octane fraction boiling in the range 80 DEG -180 DEG F. and a reformer feed boiling in the range 180 DEG -360 DEG F.  Bottoms may be recycled or recovered as jet fuels or fuel oil.  The reformer feed may be treated over a platinum catalyst at 750 DEG -1050 DEG F., 100-1000 p.s.i.g., LHSV of 0,2-5 and a hydrogen to hydrocarbon mol. ratio of at least 3.  The product may be blended with the 80 DEG -180 DEG F. isocracked fraction.
Patent GB-733358-A (GB)
Title: Improvements in or relating to noise and interference reducing feedback arrangementsin modulated radio transmitters
Inventor: BARTLETT HUGH FREDERIC
IPC: H03F1/28
Filed: 1952-05-21
Abstract: 733,358. Modulating systems; valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 5, 1953 [May 21, 1952], No. 12893/52. Classes 40 (5) and 40 (6). Hum is reduced by feeding back a voltage derived from the output of the apparatus 2 to a mixing circuit 6 whose other input is derived from a point preceding the apparatus 2, and applying the differential resultant to the circuit at a point between those from which these two inputs are taken. The apparatus 2 comprises the modulator and radio-frequency amplifier of a radio transmitter to which modulating signals from a pre-amplifier 1 are applied over a resistive attenuator 8. A- feedback signal is picked off the output feeder by a pick-up coil or plate 4 and is rectified by a rectifier 5. The mixing circuit 6 comprises R, C filters responding to hum frequencies and an amplifier 7 is interposed between its output and the input to the modulator 2.
Patent GB-623368-A (GB)
Title: Improvements in and relating to electron compasses
IPC: H01J25/34
Filed: 1945-05-23
Abstract: 623,368. Magnetic measurements. JACK & HEINTZ, Inc. May 23, 1945, No. 12906. Convention date, March 30, 1944. [Class 37] [Also in Groups XXXVIII and XL (a)] A compass or other magnetic field direction indicator comprises a magnetron valve having a cylindrical anode and concentric cathode, the radial electron stream being subjected to the magnetic field under test and also to a polarizing magnetic field aligned with the anode axis, the valve and polarizing field being rotatable together, relative to the test field, substantial cut-off of anode current resulting when the polarizing and test fields assist one another, and maximum anode current flowing when these fields are opposed. As shown, Fig. 1, the radial electron stream between the indirectly heated cathode 3 and concentric cylindrical non- magnetic anode 2 is subjected to the polarizing influence of permanent magnets 6 which are adjustable along the tube axis 5 as at 26, 27 so as to cancel out the effect of the horizontal component of the earth's field on the electron stream when the axis of the tube points due north. In this position maximum current flows in the tube to light a lamp 8 illuminating the north position on a compass card 10 rigid with the tube 1 and magnets 6. For all other angular positions of the card the resultant magnetic flux through the tube reduces the anode current sufficiently to extinguish or reduce the brightness of the lamp 6, and the bearing is measured by the angular rotation of the card necessary to bring it to the maximum current flow, i.e. N-S position. The lamp 6 may be replaced by a micro or milliammeter 11, Fig. 2, and the cathode indirectly heated and connected to the negative end of the heater battery 12 so that the latter may be used also as anode supply. A separate anodebattery may be used and both batteries mounted to rotate with the compass card 10. The filament and anode supplies may be A.C. and the polarizing magnets may be tapered to concentrate the polarizing field, Fig. 5 (not shown). The polarizing field may be produced electromagnetically by coils coaxial with the tube, Figs. 4, 7 (not shown), or by the cathode heater coil, Fig. 6 (not shown). The cathode may alternatively surround the anode, Fig. 8 (not shown). The anode current may be amplified electronically to operate repeater indicators. The compass card 10 may be rotated until maximum anode current flow operates a relay to operate a light which indicates the north position relative to a stationary pointer, this rotation being manually or automatically effected. Specification 367,426 is referred to. The Specification as open to inspection under Sect. 91 states that two or more compass tubes arranged astatically may be used for automatic steering. A further embodiment is also described which now forms the subject-matter of Specification 32945/48, as open to inspection under Sect. 91. This subject-matter does not appear in the Specification as accepted.
Patent GB-996870-A (GB)
Title: Postal card
IPC: B42D15/08
Filed: 1962-04-04
Abstract: 996,870. Envelopes. R. O. GLYNN. April 4, 1962, No. 12962/62. Addition to 993,416. Heading B6A. The postal card in the parent Specification, which comprises three panels connected in series so that the second and third panels may be folded to make a wrapper for the first panel and the third panel having an aperture for exposure of an address, is provided on the first and/or second panel with an adhesive so that the panels may be stuck together to form a reply letter-card on detachment of the third panel. In another embodiment, in Fig. 1, the postal card comprises four panels 1, 2, 3 and 4, connected in series so that the fourth and third panels may be folded about the first and second panels to form a wrapper which may be secured by a tab 11 engaging a slot 12 in the panel 3. The panel 4 is provided with a window 10 to expose an address on the panel 1. Panels 1 and 2 are provided along their exterior edges with an adhesive to form a reply letter-card on detachment of panels 3 and 4, a fold line 6 being perforated for this purpose.
Patent GB-547999-A (GB)
Title: Means for use in the rolling of metal bars
IPC: B21B39/28
Filed: 1941-10-09
Abstract: 547,999. Rolling. STEWARTS & LLOYDS, Ltd., and HENDRY, D. C. Oct. 8, 1941, No: 12999. [Class 83 (iv)] In rolling bars the necessary rotation of the bars between successive passes is effected by driven guide rollers e<SP>1</SP>, Fig. 1, fixed in position close to the line rollers by which the bars are fed. Fig. 2 shows the shape of a roller pass between a square bar from the position in which it rests on the rollers c by one side to rest on one comer. The cylindrical part of the roller e crowds the bar into the V of the roller e<SP>1</SP>. Fig. 3 shows the bar half turned and contact with the upper surface of the roller e completes the action. Rollers for turning diamond and oval sections are illustrated. Fixed guides may be employed in front of the rollers e, e<SP>1</SP> to prevent a bar from being improperly presented.
Patent GB-668038-A (GB)
Title: Improvements in and relating to resistance welding apparatus
IPC: B23K11/30
Filed: 1950-05-24
Abstract: 668,038. Welding by pressure. MALLORY METALLURGICAL PRODUCTS, Ltd. May 24, 1950 [June 15, 1949], No. 13031/50. Class 83 (iv). A resistance welding electrode comprises a body 14 and a cap 11 having an outer working face 12 the cap being rotatably and detachably pressure-mounted on the body 14 and coolant fluid sealing means interposed between said cap and body portions. The cap 11 has an arcuately-shaped inside surface 13 which embraces a ball end 15 on the body 14 for universal movement. The body 14 has a central bore 24 and a tapered end portion 18 which fits into an electrode holder 22. A tube 22a in the bore 25 conducts a coolant fluid to the inside surface 13 of the cap. A recess 30 may be formed in the cap 11 to assist cooling and leakage of the coolant is prevented by a rubber or fibre washer 32 housed in a groove 31 cut either in the ball end 15 or in the cap 11. This seal may also in the form shown in Fig. 1, assist in retaining the ball-engaging portion of the cap which has a crimped or corrugated collar portion to enable the cap to be readily placed on, and removed from, the ball end 15.
Patent GB-267757-A (GB)
Title: Improvements in or relating to orthop?dic footwear
IPC: A43B7/00
Filed: 1926-05-21
Abstract: 267,757. Schuhfabrik E. Wallerstein Akt.-Ges., and Oestreicher, H. May 21, 1926. Boots and shoes ; foot-arch supports. - A foot-arch support comprises strips of flexible fabric d, e which are inextensible in the direction of pull but are rendered yieldable in a transverse direction by the incorporation into them of rubber or other elastic threads. The strips are fastened to a boat or shoe b at c and are provided at their upper ends with hooks h, i adapted to project through lace-holes k, l and to receive the boot &c. lace. Alternatively, the strips d, e may be fastened to the centre of the sole, passing through an opening in the welt, and be made to form part of the lace-up portion of the upper by passing through slots therein. In a further modification the strips are formed with longitudinally slitted ends which are passed one through the other and are provided with leather cross-pieces have hooks or lace holes registering with the normal lace-holes of a shoe.
Patent GB-604763-A (GB)
Title: Improvements in or relating to deflection circuits for cathode ray oscilloscopes or the like
IPC: H03K4/12
Filed: 1945-05-25
Abstract: 604,763. Saw-tooth generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 25, 1945, No. 13072. Convention date, May 25, 1944. [Class 40 (vi)] A single stroke saw-tooth generating circuit comprises a cathode coupled flip-flop with a capacitor between the anode of the normally conducting valve to earth. The anode of valve 10 is coupled over one of a series of capacitors 36 to a normally conducting valve 12 having a capacitor 54 connected between the anode and earth, the back coupling being effected over the common cathode load 16. A positive triggering signal, applied to the grid of valve 10 causes the valves to reverse their state, capacitor 54 charging over the anode resistor 64 until the valves revert to normal, the capacitor then discharging through valve 12. The diode 68 causes the effective gain of valve 10 to be low in the normal state so that while conducting to a small extent, it is insufficient to cause valve 12 to be rendered non-conducting, the circuit being sensitive to small amplitude triggering signals. Diode 70 ensures that in the normal state valve 12 passes sufficient current to provide the necessary bias potential across resistor 16. A coarse adjustment of the duration and slope of the sawtooth may be made by the ganged switches controlling capacitors 36, 54, fine adjustment being made by ganged resistors 48, 64.
Patent GB-149099-A (GB)
Title: Improvements in means for connecting one pipe to another and in automatic valves therein
IPC: F16L37/32
Filed: 1919-05-24
Abstract: 149,099. Stanton, T. May 24, 1919. Couplings, disconnectible; with valves and cocks.-A coupling for flexible tubing consists of two members each containing a valve such that making the coupling unseats it and uncoupling causes it to stop the flow of fluid. Figs. 1 and 1A show the two halves of the coupling and Figs. 2 and 3 are end views in the directions shown by the arrows F, G respectively. A flexible pipe is fixed on the spigot a, Fig. 1A. The other end is screw-threaded at a<2> and intermediate are two other portions a<4> and a<3>. On the part a<2> is screwed a tubular portion, whose end forms a tubular spigot b. A valve c is held by an annular projection b' and a ring c<3> of soft material and has a stem c<6> of triangular cross-section, Fig. 3. The stem is reduced at c<8> to form a spigot which screws into the valve and holds the ring c<3> in position on the valve. A sleeve having lugs d<3> is adapted to fit over the end of the other member of the coupling, the lugs d<3> passing through recesses e<8> into an annular groove e<9> and locking by turning against a shoulder e<10>, Fig. 5. The other member of the coupling consists of a tubular member e to receive the spigot b, which is held by a packing-ring f, which is itself held by a ring g screwed into e. The other end of the member e has another tubular member i<1> screwed on to it, and this member contains a valve h whose tube h<4> passes into e. The other end of i<1> screws on to the spigot of a branch pipe. When coupling is made the tubes c<6> and h<4> of the valves c and h unseat the valves and allow fluid to pass. The valves in either portion of the coupling may be omitted and replaced by a bridge-piece to unseat the valve in the opposite portion.
Patent GB-655252-A (GB)
Title: Improvements in or relating to weft-supplying arrangements in looms
IPC: D03J5/00
Filed: 1947-05-15
Abstract: 655,252. Stopping looms ; weft feelers : change boxes. MASCHINENFABRIK BENNINGER AKT.-GES. May 15, 1947, No. 13157. Convention date. May 18, 1946. [Classes 142(i) and 142(iii)] Concerns control mechanism for stopping a single or multi-shuttle loom with the shed open when an active shuttle is depleted, and at front centre when a warp thread breaks. Cop feelers, Fig 4. A headed feeler 23 and a probe 22 carry contacts 24, 25 normally kept separated by a collar 27 and by the probe being pushed inwards when it encounters a cop; but when the feeler 23 is pushed inwards by the shuttle and a depleted cop leaves the probe undisturbed, the contacts touch and so cause stoppage as described below. In looms having a single box at one end, the cop feeler is mounted on the loom frame; in looms having change boxes at both ends, the feelers (one for each cell) are mounted on one change box and are simultaneously given feeling movements towards the cell by a lever rolling on a fixed cam, switches operated by the change box motion coupling only the feeler for the active cell into the stop circuit. Timing mechanism, Fig. 17. A cam 62 rotating at half crankshaft speed oscillates a lever 66 about the end 67 of a lever 70 pivoted at 69. When a cop feeler or the warp stop motion operates, an electromagnet (not shown) attracts an armature 78 to engage a pawl 74 with a shoulder 73 on the lever 66; the lever is thereby locked to the lever 70 which is then turned by the cam to stop the loom through a connection 71. Two lobes 62a, 62b of the cam cause stoppage with the shed open on weft exhaustion, and a lobe 62c causes stoppage at front centre on warp breakage. A second cam (not shown) operates a switch which couples the cop feelers and the warp stop motion to the electromagnet on alternate revolutions of the crankshaft.
Patent GB-917134-A (GB)
Title: Improvements in or relating to permanent magnetic chucks
IPC: B23Q3/154
Filed: 1959-04-17
Abstract: 917,134. Magnetic clutches. HAGOU METAALWARENFABRIEKEN N.V. April 17, 1959 [April 19, 1958], No. 13163/59. Class 35. A magnetic chuck comprises relativelymovable upper and lower plate members 1, 2, each incorporating a number of parallel spacerbars 6 of high permeability material, held rigidly in a rectangular frame of non-magnetic material to form a grid, there being fixed in the slots of at least one plate member between the spacer bar permanent magnet bodies 8. The polepieces which are less deep than the spacerbars, are secured by an adhesive which also serves as a filler for the spaces 9 at the top and bottom of the slots to provide each plate with flat surfaces. Alternatively strips of ceramic magnetic material, magnetized in the direction of their smallest dimension, i.e. parallel to the work-holding surface of the chuck, may be used for the polepieces 8, which closely fit the slots between the spacer bars. The bars 3, 4 of the frame, of non-magnetic material such as brass or stainless steel, are welded together and the side bars 4, which may be semi-circular, and one or more intermediate bars 5 are slotted at their outer edges to receive the correspondingly recessed spacer-bars 6, the latter also being welded in the slots to form a rigid grid wherein the ceramic magnetic elements may be carried without mechanical stress. In a modification, Fig. 4, the side members of the frame are rods, 10, of non-magnetic material, the spaces between the spacer bars and around the rods at the ends of the polepieces being filled with a plastic material 12, and strips 13 of non-magnetic material cover the polepieces 8 between the top edges of the spacer-bars.
Patent GB-165620-A (GB)
Title: An improved construction of foot-propelled vehicle for children
IPC: B62M1/00
Filed: 1920-05-12
Abstract: 165,620. Rouse, A. E. May 12, 1920. Quadricycles. - A foot-propelled vehicle for children comprises a platform 1 mounted on front and rear pairs of wheels, a longitudinal bar 8 supported on standards 9 and carrying an adjustable saddle 10, pedal cranks 13 mounted in a pair of suspended brackets 16 and connected by a chain 18 to the rear axle, and a steering-column 6 secured to the swivelling front axle. In a modification, Fig. 3, suitable for girls, the bar 8 is cut short in front, and the steering-column 6 passes through a bearing on an inclined support 21. An additional seat 22 may be mounted on the support 21 and on a leg 23, the lower end of which engages in a socket 24. A band or other brake on the rear axle is operated by a hand-lever 25 through a rod 26, a bell-crank lever, and a rod or cord 29.
Patent GB-131823-A (GB)
IPC: B43L13/00
Abstract: 131,823. Bogaert, J. P. van. Jan. 30, 1919. Differentiating-calculators ; outline-tracing apparatus.-Relates to apparatus whereby the integral or the differential of a given curve can be plotted or drawn according as a tracing point or a tracing wheel, both carried by one shaft, is moved over the curve. The tracing point is carried on a slide on the shaft and its movement is transferred by a series of cords and pulleys to a slide bearing the tracing wheel moving on a truck mounted on the shaft. To prevent slip, positive movement is imparted to the tracing wheel through a flexible connexion from a reversible clockwork. The shaft 1 having roughened disks 2, 3 secured to its ends is provided with spindles 4, 5 on which are loosely mounted weights 6, 7 connected by a scale 14. Mounted on the shaft are a slide 45 and a truck 15, the former bearing an arm 47 provided with a recording point 47<1>, and the latter being carried by inclined rollers 16, 17, 18, 19. Secured to the truck is a horizontal guide-rod 25 bearing a slide 26 to which is pivoted a second slide 27 moving on a rod 28. Mounted on the truck 15 by screws is a frame 31 bearing a scale 33 and a guide 34 on which moves a slide 35 bearing a vernier 44. Fixed on a spindle 37 loose in the slide 35 are a fitting 37<1>, carrying the guide 28, and a bracket 38 carrying the tracing wheel 39 provided with an inking-roller. To prevent slip, the tracing wheel is driven positively through a flexible connexion 39<11> from a reversible clockwork 39<1>. Connexion between the various guides is effected by a cord 11 the ends of which are secured to spring drums 9, 10 on the weight 7. From the drum 10 the cord passes over pulleys 23, 29, 24, 8 to the drum 9, the pulleys 23, 24 being coaxially mounted on the truck, the pulley 29 on the pivot of the parts 26, 27 and the pulley 8 on the weight 6. A clamp 46 is provided on the slide 45 for securing it to either branch of the cord 11, and the slide 26 is connected to a spring drum 30 on the end of the guide 25 by a cord 30<a>. In operation, one of the cords 11 is clamped to the carriage 45, and the tracing points 47, 37 describe curves' which are respectively the differential and integral one of the other, the reference line of the curve described by the point 37 being the line obtained by causing the point 47<1> to follow the axis parallel to the rod 47.
Patent GB-549943-A (GB)
Title: Improvements in and relating to methods of and means for attaching wall boards and the like to structures
IPC: E04B9/10
Filed: 1941-10-15
Abstract: 549,943. Wall and ceiling coverings. ANDERSON & SONS, Ltd., C. F., and DUNKERLEY, V. Oct. 15, 1941, No. 13270. [Class 20 (iv)] Beams 9 supporting wall boards are secured to purlins or other part of a structure by brackets 7 with stamped out tongues 6 which are passed through holes in the webs of the beams and clinched over. Similarly a splicing plate 16 connecting to beam lengths is secured by tongues passed through holes in the beam and bent over. The tongues may be stamped out from the webs and passed through holes in the brackets and splicing plates. Specification 519,406 is referred to.
Patent GB-766310-A (GB)
Title: Improvements in or relating to ramjet power plants
Inventor: MULREADY RICHARD CRANLEIGH
IPC: F02K7/10
Filed: 1953-05-12
Abstract: 766,310. Jet propulsion plant. UNITED AIRCRAFT CORPORATION. May 12, 1953, No. 13302/53. Class 110 (3). [Also in Group XII] A ramjet power plant comprises a mixing section, a combustion section receiving mixed fuel and air from the mixing section, one of the sections comprising a plurality of individual units, means for introducing fuel into the mixing section, means for igniting the fuel including pilot flame mechanism in the combustion section, and flame-holder means in the path of flow and located adjacent the pilot flame mechanism. In Fig. 1 the supersonic diffusion sections 40 each comprise a converging duct having perforations in the walls to provide bleeds to ensure swallowing of the shock-waves and each section 40 leads to a mixing section 44 provided with upstream and downstream fuel injection means, preferably in the form of peripherally-spaced nozzles flush with the wall of the duct. Vanes 48 of airfoil shape may be provided to improve the mixing of the fuel with the air and a hot wire sensing element 50 may be provided to sense the weight rate of air flowing through the duct and so to control the fuel supply. The flame-holder section includes a plate-like member 70 which includes a plurality of openings to receive and support the downstream ends of the mixing ducts 44; pilot nozzles 74 are supported by the plate 70 and are fed either with a fuel-air mixture, which may be bled from the mixing chamber, or with a gaseous fuel and a combustion supporting gas. A sparking plug (not shown) may be provided for igniting the pilot jets, all of which are situated in shielded areas; the pilot jets co-operate to form an interconnected flame area for igniting the main fuel. It has been found that more efficient combustion can be maintained if the flame-holding areas between the individual duct units 44 are substantially identical in dimensions, for example by forming the inwardly directed lips at the downstream end of the ducts 44 in the form of a polygon 90, Fig. 6. Fig. 15 shows a ramjet having a single diffuser 144, a single mixing section 146, and a combustion chamber comprising a plurality of individual units 148. Fig. 16 shows a ramjet having a single diffuser 150 with a plurality of mixing sections 152 and a plurality of combustion chambers 154. The power output can be varied by operating all or just a limited number of the individual units comprising a portion of the engine.