baber/WOPTO huggingface dataset:
Patent GB-750477-A (GB)
Title: Improvements in or relating to control apparatus for jet engines
IPC: F02K1/16
Filed: 1952-05-14
Abstract: 750,477. Gas turbine jet propulsion plant. BENDIX AVIATION CORPORATION. May 14, 1952 [June 6. 1951], No. 12244/52. Class 110(3) [Also in Group XXXV] In a control system for a gas turbine engine having an exhaust jet of variable area, and afterburner ports, the pilot's control lever is arranged to effect control of the turbine fuel, jet area, and afterburner fuel in sequence. The jet area is controlled by a reversible two phase motor 54 which adjusts a hydraulic valve 52 to move a bullet valve 46 by means of a ram 34. The valve is biased by a spring 68 so as to hold the jet area at a maximum (or alternatively at a minimum) when the electrical control is inoperative. A centrifugal switch connects the motor 54 to the, aircraft supply when the engine speed is below a predetermined value, and the motor holds the valve 52 in the maximum jet area position. Above this speed the motor 54 is controlled according to engine temperature by a thermocouple, bridge and amplifier as disclosed in Specification 750,476 modified in that the variable resistor which was preset to control the bridge balance point is now resistor 108 and is coupled to the pilot's control lever so that a variable temperature datum is obtained. In operation, during the first 30 degrees of movement of the control lever the setting of a main governor 20 is progressively increased by a cam 98. The engine accelerates with the jet area held at maximum until at about 70 per cent of full speed the centrifugal switch connects the motor 54 to the amplifier. At this point also the adjustable slider 106 first contacts the resistor 108, and each new throttle position thereafter up to the aforesaid 30 degree position also selects a temperature which will cause the optimum jet area for the corresponding engine speed which reaches its maximum at the end of this range. During the next 30 degrees further fuel is supplied but the speed is held at its maximum by the main governor, and the thrust is increased by further reducing the jet area as progressively higher temperatures are selected by adjustment of resistor 108. During the final 30 degrees of movement, the main governor remains at its maximum setting, jet area corresponds to maximum temperature and cam 100 starts and increases the supply of fuel to the afterburner jets. Specification 626,045 also is referred to.
Patent GB-591753-A (GB)
Title: Improvements relating to fastening devices
IPC: F16B2/24
Filed: 1945-05-16
Abstract: 591,753. Securing end closures to instrument cases &c. SWEET, L. May 16, 1945, No. 12262. [Class 18] [Also in Group XXV] For securing a glass pane or other end closure member in an instrument case or housing or for general purposes, a fastener 10 is provided comprising a body portion 11, a leg portion 12 and a head 13 which seat in grooves 5, 2 as shown, a spring tongue 14 being formed in the part 11 to provide a cam surface part which the pane 6 can be pushed to come into engagement with abutment surface 17 and either the edge of groove 2 or the edge of head 13.
Patent GB-681396-A (GB)
Title: An improvement in or relating to driving belts
Inventor: POLLARD ERNEST
IPC: F16G9/00
Filed: 1950-05-17
Abstract: 681,396. Driving belts. FEXICON, Ltd. May 17, 1951 [May 17, 1950; July 6, 1950] , Nos. 12268/50 and 16865/50. Class 80 (i). A driving belt for engagement with cylindrical surfaced pulleys and comprising a circular sectioned belt formed of a core of threads of rubber, synthetic rubber, or a rubber-like plastic, or other suitable material coated with rubber, synthetic rubber, or a rubber-like plastic and wrapped about spirally with a covering of cotton or other threads coated with rubber, synthetic rubber or a rubber-like plastic, is moulded under suitable heat and pressure to a shape a so as to present at least one flat or substantially flat surface a<SP>1</SP> so as to prevent the belt " rolling " in use. Synthetic rubbers which can be used are neoprene, polystyrene or butadiene whilst a suitable rubber-like plastic is polyvinyl chloride.
Patent GB-775103-A (GB)
Title: Improvements in or relating to the manufacture of play balls
Inventor: CRAVEN GEORGE WILLIAM EDWARD
IPC: A63B39/06
Filed: 1954-04-29
Abstract: 775,103. Finishing fabrics. SLAZENGERS, Ltd. April 19, 1955 [April 29, 1954], No. 12445/54. Class 42 (1). [Also in Group XV] A tennis or like ball consists of a resilient core to which is adhesively secured a knitted, braided or crocheted yarn which is then raised and felted to have the appearance of a seamless cover. The yarn may include up to 75 per cent of fibres of a polyamide such as nylon or a polyester such as that known under the Registered Trade Mark " Terylene," these fibres being straight or crimped. The yarn may be treated with a gum which is washed out after the cover has been stuck to the core. The cover may be formed of two knitted hemispherical cups, two knitted discs moulded to hemispherical shape or a knitted bag into which the core can be inserted through a slit. Several of these bags can be knitted as a unit, the cores being inserted and then the bags separated. Alternatively, a cover may be knitted around a core or several may be knitted around several cores, the balls being then separated. When a join in the cover is necessary, it is effected by a feltable strand. The cover parts can have a backing of non-feltable material to improve the adhesion to the core.
Patent GB-976487-A (GB)
Title: Hydrant for installation underground
IPC: F16K27/02
Filed: 1961-04-06
Abstract: 976,487. Pipe connections. RHEINISCHES METALLWERK G.m.b.H. April 6, 1961 [April 6, 1960], No. 12452/61. Heading F2G. [Also in Division F1] A hydrant (see Division F1) has a plastic riser 3, whose flanged ends 20 are held by plastic sleeves 21 secured to cast-iron or plastic members 1 and 19 by bayonet joints 28. The ends of the riser are sealed by soft-rubber U-rings 22 which are compressed against annular projections 26 on the members 1 and 19 and are urged against the walls of the riser and the sleeve by fluid pressure admitted into spaces 23.
Patent GB-1006327-A (GB)
Title: Improvements in and relating to a thrust bearing for a rotatable shaft
IPC: F04D29/06
Filed: 1962-04-02
Abstract: 1,006,327. Bearings. SCHWITZER CORPORATION. April 2, 1962 [April 28, 1961], No. 12541/62. Heading F2A. A thrust-bearing assembly for a rotatable shaft 14 comprises a stationary annular thrust member 56 (Figs. 2 and 3) having a bore 67 in which it is freely accommodated into which an outlet from a passage 63 opens, one ring or two rings 51, 52 rotatable with the shaft located adjacent the member 56 to form one or two pairs of thrust surfaces resisting axial movement of the shaft in one direction, and means for introducing a lubricating and cooling fluid into the passage 63 from the outlet axially along the bore and radially outward between the opposed thrust surfaces. Oil-deflecting members 39, 66 form a hood adjacent the member 56, which has surfaces grooved at 60 (Fig. 4) to assist flow away of the fluid. In this form shown the fluid passage extends between an inlet 49 in the central portion 24 of an intermediate casting 21, attached to a turbine housing 10, through the passages 47 and 63 to the outlet, the shaft 14 being that of a turbocharger. The turbine housing 10 has an inlet passage 18 transmitting high-pressure engine exhaust gases through the turbine wheel, to rotate it by their expansion, and then to be discharged through the passage 19. Specification 929,456 is referred to.
Patent GB-513709-A (GB)
Title: Adjustable chair for sitting and reclining purposes
IPC: A47C4/16
Filed: 1938-04-27
Abstract: 513,709. Adjustable folding chairs. LUCKHARDT, H., and LORENZ. A. April 27, 1938, No. 12597. Convention date, April 29, 1937. [Class 52 (ii)] The movable seating parts of a chair which is adjustable for sitting and reclining purposes are formed of a polygon of unequal links, pivotally suspended about a pivot in a fixed upright, characterised in that one of the pivot points of the movable polygon is displaceable in one of its links in such a manner that the links of the polygon and the fixed upright can be folded into two parallel planes. The polygon consists of links 4, 7, 11, 8, pivoted at three points and joined by a pin 19 in the slot 9. The supporting frame consists of struts 1, 2, pivoted at 3, the back rest 4 being pivoted to 1 at 5 and the slot in the arm rest 8 serving as a sliding surface on the front end of the upright 1 provided with a locking device 10. The chair may be moved into a reclining position as indicated by the dotted lines and further backward movement may be prevented by the clamping screw 10 which operates against a wedge-shaped sideface of the arm rest. Forward movement to the sitting position will not be,prevented due to the slope of the wedge. The chair may be folded as shown by lifting the back rest at 18 and the seat at 15. Alternatively it may be folded by lifting together the back rest 4 and foot rest 11, Fig. 5 (not shown). Specification 469,313 is referred to.
Patent GB-1237371-A (GB)
Title: Improvements in or relating to a process and apparatus for twisting yarn, and to yarn twisted according to the process and apparatus
Inventor: RUIG JAN ROBERT DE
IPC: D01H1/30
Filed: 1967-03-17
Abstract: 1,237,371. Spinning yarns. ALGEMENE KUNSTZIJDE UNIE N.V. 17 March, 1967 [18 March, 1966], No. 12600/67. Headings DID and D1F. [Also in Divisions G2 and G3] In a process for twisting e.g. drawtwisting, yarn by means of a device having at least one winding spindle around which a twisting member e.g. a traveller, rotates and on which twisted yarn is wound to form a package, during the winding a programming unit continuously imparts a value to the speed of the winding spindle as a function of a progress variable, such as yarn package diameter, representing the progress of the package buildup, such that the speed of the twisting member satisfies the equation n t (v)/n t (v b ) = f(v), where   nt(v) is the desired speed of the twisting member corresponding to the value v, n t (v b ) is the desired speed of the twisting member at the beginning of the build (the variable v having the initial value v b ) and f(v) is a programmed function value, dependant on the variable v, defined by the object to be attained by means of the values of the speed n t (v). In the embodiment shown, feed roller 1 (one of several corresponding to the number of stations of a drawtwisting machine) draft roller 4 and a winding spindle (not shown but receiving yarn which has passed through a traveller) are driven respectively by electric motors 3, 6 and 7 the speeds and relative speeds of which are controlled, by a system incorporating control units 10 and 27, programming unit 18 and automatic controller 22, forming parts of interconnected automatic control loops, in accordance with predetermined size and form of package. Thus, electric pulses having a repetition frequency proportional to the speed of roller 1 and emitted by source 8 are applied through unit 10, which also receives signal pulses from a pulse divider 11 (in turn receiving signal pulses through line 12 from a source 13 the emission of which is proportional to the speed of roller 4) and exercises control over the speed of motor 3. The latter pulses are applied to pulse dividers 15 and 16 which apply an adjustable proportion of the input pulses to a slipping motor 17 coupled to and operating the unit 18 which so sets the frequency division of the pulse divider 16 that the repetition frequency of its outgoing pulses is proportional to v/#d (where d is the prevailing yarn package diameter, V is the draw' rate). A pulse generator 30 develops a train of frequency-adjustable pulses applied to a pulse divider 20 so set by an additional control programmer in unit 18 that the repetition frequency of its emitted pulses is proportional to traveller speed or twist. The pulses emitted by dividers 16, 20, are applied to securing device 21 the output of which is compared at 25 with the pulses emitted from source 24 mechanically coupled to motor 7 and control is effected by element 26 through correcting element 23.
Patent GB-539767-A (GB)
Title: Improvements in or relating to shear legs
IPC: B66D3/12
Filed: 1940-08-06
Abstract: 539,767. Shear legs. M. E. ENGINEERING, Ltd., and JUDDELL, O. Aug. 6, 1940, No. 12659. [Class 78 (iv)] The three legs are united at the top by a joint which permits universal movement while enabling the legs to be locked in any position by a single bolt. Distortion of the legs under load is prevented by adjustable stays. One leg 2 is pivoted to the locking bolt 4 while the other legs 1, 3 are pivoted by pins 7 to intermediate members 6 inserted on the bolt 4. A distance piece 11 prevents clamping of the pulley 10. When the handle nut 5 is tightened, brackets 8 grip the ends of the legs 1, 3, clamp the intermediate member 6 to the bolt 4 and grip the leg 2. To prevent distortion of the legs, under load, they may be connected bv three tubular stays each connected to two legs by divided clamping cylinders adjustable to any position.
Patent GB-806292-A (GB)
Title: Improvements relating to insulating oil compositions
Inventor: ORDELT HERMANN
IPC: H01B3/20
Filed: 1956-04-25
Abstract: An insulating oil, having good resistance to ageing and gassing and suitable for use in transformers, condensers and cables, comprises (a) a mineral oil, and (b) 0.1-10 per cent by weight of a hydrocarbon fraction which is substantially free from olefins and contains at least 20 per cent by weight of monocyclic aromatics, the fraction having a 10 per cent distillation point of at least 160 DEG  C. and a 90 per cent distillation point of not more than 300 DEG  C. Ingredient (b) may be platformer bottoms or products obtained by the solvent extraction of platformer bottoms (e.g. with diethylene glycol), hydrogenated polymerization gasoline, hydrogenated catalytically cracked gas oil, or alkylate.  In examples, insulating oils are described consisting of mineral transformer oil and platformer bottoms.
Patent GB-130748-A (GB)
Title: Sewing Machine.
Inventor: FAIRWEATHER WALLACE
IPC: D05B71/00
Filed: 1918-08-03
Abstract: 130,748. Fairweather, W., (Singer Manufacturing Co.). Aug. 3, 1918. Sewing-machines ; feed by dogs; frames.-Sewing-machine frames consist of an open-topped trough-shaped supporting-bed 1 and a standard and bracket arm 2, 3 fixed directly to one end thereof. The complete structure may be cast in one piece. The bed is formed. with inwardly projecting lugs to provide bearings for the feeding and loop-taker mechanisms, and with outwardly projectings lugs 5, 6 serving to support the frame in the usual aperture table top. The rear lugs 5 are entered by swivel pin 7 pivoted at 8 to metal blocks 9 secured to the table, and the front lugs rest on a ledge 10 disposed below the surface of the table. The open side of the trough is closed by a detachable cloth-plate 70 recessed at 72 to embrace the base of the standard, and at 74 to take a sliding cover-plate 75. A rectangular aperture 76 is provided for the throat-plate, which is screwed directly to inwardly projecting lugs on the bed. The cloth-plate is sufficiently wide to conceal the supporting-lugs and is secured by suitable screws, The sewing- mechanism described comprises a rotary looptaker carried by a shaft 26 mounted in the bearing-lug 28 and driven through a two-to-one multiplying-gear from an actuating-shaft 21 mounted in the lugs 22, 23. The shaft 21 is driven from the main shaft 14 through a vertical shaft 17 mounted in lugs 18. The feed-mechanism comprises a dog f secured to a bar 30 which receives rising and falling movements from an eccentric on the looper-actuating shaft 21, a pitman 52, and a bell-crank-lever 54 carrying a. roller 53 which is held in engagement with the feed-bar by a spring 59. The feed and return movements are imparted by a feed-roller 34 having arms 33 between which the end of the feed-bar is mounted on pintle screws. The rocker is also mounted on pintle screws and is driven by a arm 37 and adjustable link connected @@ from a rocker 47 pivoted in the lug 22 and driven by an eccentric on the looperactuating shaft. A feed-adjusting rocker 43 has an arm 42 connected by a link 41 to the link 39, and also carries another arm 64 with a projecting pin 63 traversing the thread of an adjusting-screw 61, which may be locked in any position by a spring catch 65. The Specification also describes means for lubricating the lower mechanisms, comprising an oil reservoir 80 which is supported by two delivery tubes 81', 82 which fit into corresponding oil-holes drilled in the bearing-lug 22 and leading to the shafts 48 of the rocker 47 and the looper-actuating shaft 21. Various other delivery tubes 85 radiating from the reservoir in various directions carry oil to the different bearings requiring it. The reservoir and delivery tubes are filled with wicking, and the supply of oil may be introduced through registering holes in the clothplate and top of the reservoir.
Patent GB-658447-A (GB)
Title: Arrangement for the speedy clamping of cycle and the like hubs
IPC: B62K25/02
Filed: 1949-05-12
Abstract: 658,447. Detachable wheel mountings for cycles. JUY, L. C. H. May 12, 1949, No. 12709. Convention date, May 18, 1948. [Class 136 (ii)] A device for rapid clamping of cycle and the like hubs wherein The hub carrier 2 is axially bored for the reception of a spindle 3 having a threaded end for screwing and locking a nut 4 thereon which is held rigid with the carrier 2 by a stud 9 secured to the nut 4 and engaging a groove in the carrier while the other end of the spindle carries a lever operated locking means for the simultaneous clamping of the hub carrier between two lugs 6 and 10 on the cycle frame. The end nuts have flanges 5 and 19. Washers 13 and 14 and collars 11 and 12 engage the hub carrier. End. springs 17 are provided in the nut 4 engaging the hub carrier. In a modified form more rapid clamping is obtained by the lever 8 having a sloping surface engaging another sloping surface which is clamped by a stud to the hub carrier, a spring being inserted at the end.
Patent GB-1415076-A (GB)
Title: Oxidation catalysts
IPC: C07C51/00
Filed: 1973-03-16
Abstract: 1415076 Phthalic anhydride BADISCHE ANILIN- & SODA-FABRIK AG 16 March 1973 [17 March 1972] 12766/73 Heading C2C [Also in Division B1] Phthalic anhydride is made by oxidizing o-xylene or naphthalene with air in the presence of a catalyst comprising an active material containing 60-99 wt. per cent TiO 2  and/or ZrO 2  and 1-40 wt. per cent V 2 O 5 , and based on the total weight of TiO 2  + ZrO 2  + V 2 O 5  up to 6 wt. per cent of phosphorus as a phosphorus compound, wherein the catalytically active material in the outer layer contains 0-0À3 wt. per cent phosphorus and the remainder of the catalytically actiev material contains more than 0À3 up to 6 wt. per cent phosphorus.
Patent GB-667454-A (GB)
Title: Improvements in and relating to a universal gimbal support
IPC: H01Q1/18
Filed: 1950-05-22
Abstract: 667,454. Self levelling arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. May 22, 1950, No. 12767/50. Class 113 (i). A gimbal support comprises an arcuate yoke 7 pivotally supporting the gimbal 1 at two diametrically opposed points 2, 3, defining an axis of rotation for the gimbal, the yoke 7 being slidingly mounted in a shoe 13 fixed on a shaft 18 which is driven by a selsyn motor 23 to rotate the shoe, yoke, and gimbal about the axis of the shaft: a continuous flexible driving member 9 extends over driving and idling wheels 8. 11. adjacent to the points 2, 3, and sprockets 14, 15 splined to shafts 16, 17 driven by selsyn motors 24, 25 to actuate the driving member 9 through the wheel to rotate the gimbal 1 about said axis of rotation ; by rotating one of the sprocket wheels 14 or 15 faster than the other the driving member 9 will pull the yoke 7 through the shoe 13 thus rotating said axis of rotation of the gimbal 1 in the plane of the yoke.
Patent GB-601063-A (GB)
Title: Process for separating solid materials of different specific gravity and different grain size
IPC: B04C5/00
Filed: 1945-05-22
Abstract: In the separation of solid particles of different specific gravity and grain size from a mixture, a quantity of fine material of a specific gravity higher than the desired specific gravity of separation is added to the mixture which is then treated in a cyclone separator.
Patent GB-162193-A (GB)
Title: Improvements in apparatus for the manufacture of hollow glass articles
IPC: C03B9/18
Filed: 1920-05-08
Abstract: 162,193. Meunier, M. May 8, 1920. Glass furnaces.-A glory hole 75, forming part of a bottle-making machine, is heated by gas burners, the air supply of which is preheated by circulating through a, recuperator 81 surrounding the flue 82. An inspection window is provided to enable the operator to watch the parison, and counterweighted doors are provided to close the inlet and exit of the glory hole.
Patent GB-402763-A (GB)
Title: An improved choke control for carburettors of internal combustion engines
IPC: F02M1/10
Filed: 1932-05-04
Abstract: 402,763. Spray carburetters ; valves. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. May 4. 1932, No. 12827. Convention date, May 4, 1931. [Class 7 (iii).] The choke valve of a carburetter is held in its closed position until a vacuum in the inlet manifold is sufficient to release the valve and allow it to be opened. The choke valve 24 of a down-draught carburetter is connected by a link 28, Fig. 2, to an arm 30 pivoted at 32 and arranged in the lower end of a cylinder 34 the upper end of which contains a spring- loaded piston 40 and is connected through ducts 36, 38 with the intake manifold. The piston is slotted at 43, Fig. 4, to clear the arm 30 and is formed with an inclined face 46, Fig. 4, in which is a groove 48 which normally engages a pin 47 on the arm 30 to depress the arm and maintain the choke valve closed. The spindle 26 of this valve is connected by a spring 67 to an arm 62 the free end of which has a pin adapted to follow the contour of a cam 58, Figs. 1, 3 mounted on a spindle 57 connected by a bi-metallic strip 54 to a casing 52 arranged close to the exhaust pipe 53, Fig. 1. When the engine commences to fire, the vacuum soon becomes sufficient to raise piston 40 and release valve 24 which may then be opened to some extent by suction. The flow of exhaust heats pipe 53, and the bimetallic strip moves the cam 58 to open the choke valve still further. A circular contour 60 of the cam in conjunction with the spring 67 prevents straining of the valve-actuating mechanism. In a modification, a toggle, actuated by suction transmitted to a bellows, serves to hold the choke valve closed. The Specification as open to inspection under Sect. 91 described also a suction-actuated bellows attached to a piston bearing on a pin on an arm similar to that described in connection with Fig. 1, but the free-end of the arm engaged the contour of the cam. This subjectmatter does not appear in the Specification as accepted.