baber/WOPTO huggingface dataset:
Patent GB-832800-A (GB)
Title: Mechanical appliances for earth moving
Inventor: STEPHENSON LOUIS JOHN
IPC: E02F3/34
Filed: 1957-02-21
Abstract: 832,800. Shovelling machines. ANTHONYHOISTS Ltd. Feb. 17, 1958 [Feb. 21, 1957], No. 5936/57. Class 68(1) A control mechanism for ensuring that the scoop of an overthrow shovel attachment maintains a predetermined angle to the horizontal as it is swung up and over the supporting means by an arm or arms pivotably supporting the scoop and rotatably mounted on the supporting means for movement in a vertical plane. The scoop 11 is rotated relative to the arms 10 by an hydraulically actuated ram 16 of a servomotor system consisting of the jack 16, a valve 21, 27, and linkage 30, 31, 34, 35, the valve being operated by the linkage which causes the ram to maintain the scoop at the required angle to the horizontal as the linkage takes account of the swinging of the arms. The angle of the scoop to the horizontal can be varied by a hand lever 37 associated with the linkage by a link 36. The scoop may be replaced by other tools appropriate for association with the arms and control mechanism.
Patent GB-994091-A (GB)
Title: Continuous production of acrylic esters
Inventor: CHRIST B UNO
IPC: C07C69/54
Filed: 1963-02-14
Abstract: Acrylate esters of C2- 4 alcohols are made by continuously contacting b -propiolactone with a C2- 4 olefine in the presence of sulphuric acid at a concentration of 70% to 100% by weight and at a temperature of 65 DEG  to 130 DEG  C., the olefine being introduced into the reaction vessel at such a rate that the ratio of the amount thereof reacted to supplied is between 1: 10 and 1: 100, and may be supplied in admixture with an inert gas.  The by-products are acrylic acid, dialkyl sulphates, ethers and alkanols.  The examples describe the conversion of ethylene and propylene to ethyl acrylate and isopropyl acrylate respectively.
Patent GB-285259-A (GB)
Title: Improvements relating to artificial teeth
IPC: A61C13/00
Filed: 1927-03-03
Abstract: 285,259. Fogg, E. March 3, 1927. Teeth artificial.-Wing pieces for artificial dentures comprise a projecting portion to engage the front of the natural gum and a retaining portion adapted to be detachably received in a socket or the like formed in the denture during or subsequent to manufacture. The wings are formed of metal or other material permitting of manipula. tion to fit the gums. In the form shown in Fig. 2 the gum-engaging part a is offset from the retaining part b fitting in the denture c. In modifications the part b may be formed as a split-pin fitting a socket in the denture, or may be bevelled to fit an undercut groove and may be further secured by screws or, according to the Provisional Specification, by cement or pins. Fig. 5 shows a form in which the part b passes through an aperture in the flange f<1> of a metal plate f embedded in the vulcanite denture, and the part a is formed with a bridge-piece a<1> removably engaging the part b. In another modification, Fig. 6, a threaded retaining portion b, integral with or engaging a tapped socket a<2> on the gum engaging portion a, engages a threaded socket f<3> embedded in the denture.
Patent GB-1244144-A (GB)
Title: Fluorocarbon isocyanurates
Filed: 1970-02-09
Abstract: 1,244,144. 1,3,5-Triazines. ALLIED CHEMICAL CORP. 9 Feb., 1970 [19 March, 1969], No. 6176/70. Heading C2C. Compounds of formula wherein X is -COOR 1  or -OR 2 , in which each R 1  is hydrogen, -CH(CF 3 ) 2 , -CF(CF 3 ) 2 , -(CH 2 ) m (CF 2 ) n CF 2 Y or -(CH 2 ) m (CF 2 ) p CF 2 OCF(CF 3 ) 2 , each R 2  is hydrogen or -CO(CH 2 ) q (CF 2 ) n CF 2 Y or-CO(CH 2 ) q ,(CF 2 ) p CF 2 OCF(CF 3 )2; Y is hydro-, gen, fluorine, chlorine or bromine, m is 1 to 10, n is 1 to 16, p is 1 to 13 and q is 0 to 10, provided that not more than two of the radicals R 1  and R 2  are hydrogen and that the number of carbon atoms in each radical R 1  or R 2  does not exceed 20, are prepared by esterification. Products containing one or two -COOH groups may be separated in the form of their salts. The products are oil and dirt repellents for textiles.
Patent GB-277234-A (GB)
Title: Lifting jack
IPC: B66F5/02
Filed: 1927-03-05
Abstract: 277,234. Nilson, L. D. March 5, 1927. Jacks. -A ratchet and rack and pinion jack having an extended lift combined with a minimum height when lowered, has a lifting member comprising a toothed sector which can be moved from its lowered horizontal position within the jack frame to a vertical lifting position. The frame has spaced beams 11 and is mounted on wheels 15 at one end and has a cross member 17 at the other end carrying castor wheels 18. The lifting member comprises a double toothed sector 19 having pivoted thereto a socket 27 carrying the crutch 28, adjustable by a ratchet device 29. The socket is fitted with guide rods 31 secured to the frame by pin and slot connections 33. The rack teeth 21 on the sector are engaged by pinions 22, Fig. 8, having lateral flanges 25 engaging with the edges of the sector to take the load and also having between them a ratchet wheel 23. The lifting pawl 36 is carried by a pair of plates 38 loosely mounted on a shaft 13 and the plates are connected by links 42<a> to a toothed quadrant 43 on a, shaft 32. The operating lever 44 is adjustably connected to the quadrant 43 by means of a toothed block 40, the quadrant also having a pedal 74 for foot operation when raising the jack to the load. The holding pawl 51 is mounted on a shaft 52. A tension spring 48 connected to the frame and to the linkage 42<a> normally holds the lifting pawl in its starting position. In operation, the lever 44 is rocked and through the lifting pawl rotates the ratchet wheel and pinions. and raises the sector and crutch, the holding pawl functioning in the usual way. To lower the jack, a bent lever 73 is rocked and through its spring-pressed connecting linkage 68 engages a notched head 59 with a pin 62 on an extension arm of the holding pawl. The head 59 forms an extension of a rod 58 sliding in a block 57 mounted on an extension arm of the lifting pawl and positioned on the rod by opposed springs 66. With the parts in this position the pawls are interconnected and by rocking the lerer 44 the opposed springs 66 are alternately compressed and expanded, the arrangement being such that the pawls are engaged and disengaged alternately and so lower the load step by step.
Patent GB-1422293-A (GB)
Title: Supports for the active material of lead accumulator electrodes
IPC: H01M4/16
Filed: 1974-02-11
Abstract: 1422293 Electrode plates for lead-acid batteries BATTELLE MEMORIAL INSTITUTE 11 Feb 1974 [12 Feb 1973 18 June 1973] 06194/74 Heading H1B An electrode is made by a method similar to that disclosed in Specification 1,422,292 except for the forming of the contact lug. As shown, the band 1 of glass fibre felt acting as a support for the lead-based active material is unwound from a drum 2 and is moved stepwise through the process stages A, B, C in sections corresponding to the individual electrodes which are formed by making transverse cuts across the band in stage C. A lug 3 is formed on the band 1 at intervals, corresponding to the successive electrodes, in the stage A by apparatus comprising a mould having shells 4, 5 which are clamped against opposite faces of the band. The mould is maintained at 50‹ C. by a heater 6 and has a nozzle 11 into which lead is injected from a molten lead ejector (Fig. 3, not shown). On solidification, the lead is formed by the mould to provide a lug 3 with anchoring fingers 3a-3f extending over both faces of the band. In stage B active material in powder form comprising a mixture of PbO and Pb is introduced into the interstices of the band. The powder mixture in the form of a suspension in deionized water is contained in a reservoir 12 and introduced into the band by a suction and filtration unit 13. The individual electrodes are obtained from the band by a cutting unit 14 and stored in a tank 15. In a modified method, the fibres of the band are metallized with molten lead-antimony alloy before stage A.
Patent GB-781693-A (GB)
Title: Improvements in resilient shaft coupling
IPC: F16D3/54
Filed: 1956-02-29
Abstract: 781,693. Universal couplings. UNITED STATES RUBBER CO. Feb. 29,1956 [May 17, 1955], No. 6286/56. Class 80 (2). Hubs 11, 12, on aligned shafts 13, 14, have axial grooves 18 engaged by ribs 17 on a coupling sleeve 15. The sleeve 15 has a thin flexible load carrying band 20 made of one or more woven fabric layers 21, 22. The ribs 17 are of rubber and are bonded to the band 20 and to a protective cover 25. The band 20 may also include a layer of rubber. The yarns of the woven fabric layers 21 may extend circumferentially and axially of the sleeve 15 or at an angle thereto. In one construction the band 20 includes a closely helically wound cord. The sleeve 15 may be made by building up the parts on a grooved cylindrical mound and then vulcanizing it under pressure,
Patent GB-804946-A (GB)
Title: Improvements relating to slidable tappet devices of internal combustion engine fuel injection pumps
IPC: F01L1/14
Filed: 1957-02-25
Abstract: 804,946. Fuel injection pumps. DAIMLERBENZ A.G. Feb. 25, 1957 [April 4, 1956], No. 6308/57. Class 102(1). [Also in Group XXVI] In a fuel injection pump of an internal combustion engine a wall 1 separates the pump space 2 from the camshaft space 3. A tappet 5 slides in a bore of the wall 1 and carries a cam follower roller 6. A cylindrical rubber spring 12, surrounding the lower end of the pump plunger 7, bears at one end against the tappet or is sealed to a plate 13 and bears against a cover plate 10 or is sealed to a plate 14 at the other end, thus forming an effective seal between the pump space 2 and the camshaft space 3. The plate 14 may be additionally sealed at its periphery by packing 16 and the pump plunger 7 may be fitted with a gland at the point 11 where it passes through the plate 10. In a modified form the rubber spring 12 may be stiffened and strengthened by a coil spring embedded and vulcanised in the rubber spring.
Patent GB-540231-A (GB)
Title: Improvements in and relating to the casting of metals
IPC: B22D19/02
Filed: 1940-04-08
Abstract: 540,231. Ammunition projectiles. STANTON IRONWORKS CO., Ltd., and WILSON, P. H. April 8, 1940, No. 6329. [Class 9 (i)] [Also in Group XXII] A cast iron shell case is strengthened against propelling thrust, without reducing the bursting-charge space or satisfactory fragmentation, by inserting in the mould reinforcing members of higher melting point at positions to produce the desired result. The base 1 of an explosive shell 2 may be strengthened by partly embedding in the bottom of the mould 4 a disc 3 of steel having varying diameters so that it becomes dove-tailed to the casting. The disc may be riveted over prior to machining. A steel basket 6 may be arranged in the mould to become embedded in the shell and ensure satisfactory fragmentation on explosion. The reinforcement may be used with the centrifugal process described in Specifications 540,229 and 540,230, [both in Group XXII].
Patent GB-140891-A (GB)
Title: Improvements in apparatus for agitating the fuel in gas generators or the like and means for operating the same
IPC: C10J3/34
Filed: 1919-03-13
Abstract: 140,891. Bentley, G. H., and Appleby, E. G. March 13, 1919. Charges, agitating.-A poker for agitating the fuel in a gas-generator is balanced by a weight so that it rises in accordance with the height of the fuel. In the apparatus shown, water-cooled pokers 12, having bases formed so as to cause them to rise in conformity with the top of the fuel, are carried in a revolving. frame 10 mounted on ball bearings 101. They are counterbalanced by weights 141 on levers 14 having at the other end toothed segments 13 gearing with racks 123 on the pokers. The levers 14 may be fixed, so that the poker does not rise or fall, by means of a pin inserted through a hole 144 in the lever bracket 143 into one of the holes 145 in the segment 13. The frame 10 is rotated by a pinion 103 gearing with a circular rack 102 on it. Fuel is fed by a drum 16 rotated by the rotation of the frame 10 through an epicyclic train gearing with a fixed rack 167, as described in Specification 135,272.
Patent GB-252328-A (GB)
Title: Process for treating cellulose derivatives
IPC: C08K5/12
Filed: 1926-03-08
Abstract: 252,328. I. G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister, Lucius, & Br³ning). May 20, 1925, [Convention date]. Addition to 245,469. Void [Published under Sect. 91 of the Acts]. Plastic compositions containing cellulose esters and ethers.-The process of the parent case is modified by employing for the solution of the cellulose ether or other cellulose derivative excluding nitrocellulose, a di-amyl ester of phthalic acid, or a mixture of such esters, for example, as is produced by the esterification of commercial amyl alcohol. The products may be used in the manufacture of films, threads, plastic bodies and artificial leather.
Patent GB-570583-A (GB)
Title: Improvements relating to metal vapour electric discharge lamps
IPC: H01J61/10
Filed: 1941-05-20
Abstract: 570,583. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. May 20, 1941, No. 6467. [Class 39 (i)] In high - pressure metal vapour lamps of the compact source type where there is a tendency to produce a flame 6, Fig. 4, at an angle to the arc 5 due to ions carried by convection currents, a magnetic field is provided strong enough to disperse this flame or direct it along the arc, but not strong enough to disturb the arc. The harmful effect of the flame is obtained only with the electrodes 2, 3 at an angle to the vertical and with an electromagnet supplying the field this may be switched on only as the electrodes leave the vertical position; or a resistance may be cut out of the magnet circuit to increase the field on displacement. A horseshoe or bar magnet may be used. The faces of the electrodes may be at an angle to each other, with their nearest points uppermost with the lamp out of the vertical. The lamp may have an auxiliary electrode 4 and a filling of mercury and a starting gas such as neon and/or argon.
Patent GB-608825-A (GB)
Title: Improvements relating to stands for motor-cycles
IPC: B66F7/06
Filed: 1946-03-01
Abstract: 608,825. Stands for motor-cycles. AERONAUTICAL & GENERAL INSTRUMENTS, Ltd., and LONG, C. E. March 1, 1946, No. 6481. [Class 136 (i)] [Also in Group XXX] A lifting appliance and stand for motorcycles comprises a hinged structure constituted by a frame 1, a load platform 6 and hinged legs at both ends arranged for the legs 3 to be turned fully to lower that end and the legs 5 at the trailing end to be limited in their movement so that by turning one of the hinged legs 3 by means of a lever bar the platform can be raised from a position sloping down from the trailing end and in which a motor-cycle can be wheeled on to the platform to a position in which the motor-cycle is raised and rests on the platform which is then substantially horizontal. Platform 6 is made of flat sheet metal with angle iron edge stiffeners 7 and has cross-pieces 8, a removable section 9, a front stop 10, a fixed strip 34 and an adjustable cross-strip 35. The legs 3 are fixed to a transverse angle bar 11 which can turn on front pins 12 fixed in blocks 2 and similarly trailing legs 5 are secured to an angle bar 13 turning on pivot pins 14 fixed in block 4. A lead-on plate 15 fixed to an end member 16 of the frame rests on the bar 11. The legs 3 are fixed at their upper ends to a transverse angle bar 18 formed with flat ears 19 from which project inwardly pins on which a plate 20 can turn. The platform can be lifted off the pins for storage purposes. The platform can rest on a transverse angle bar 21 secured to the trailing legs 5, the movement of which is limited by a stop bracket consisting of a pair of struts or props 22 connected by a rod engaged by a transverse angle bar 24. The legs 3 are raised, by inserting a lever bar 17 into the open end of one leg, until the stand is in a horizontal position, further raising lifts the end until the legs are upright, meanwhile projections 25 on the platform 6 contact the transverse angle bar 21, the legs 5 are turned until they are upright and the trailing end is lifted. A locking arm is provided with a notch to engage a frame cross-bar. The legs 5 are locked in an upright position when a notch in the arm engages the bar 24. The platform is lowered by the reverse rotation of legs 3.
Patent GB-719331-A (GB)
Title: Improvements in or relating to the cleaning of dust recovery air filters
Inventor: UMNEY LAURIE EDWARD RICHARD
IPC: B01D46/04
Filed: 1952-03-13
Abstract: 719,331. Gas filters. VOKES, Ltd. March 3, 1953 [March 13, 1952], No. 6592/62. Class 8 (2). An air filter, comprises a filter bag 13, Fig. 1, of flattened cross-section stretched over a rigid frame 17, Fig. 2, having coil springs 19 stretched between opposite sides so as to contact the interior of the bag and is cleaned by reciprocating the frame 17 thereby inducing lateral vibration of the springs 19. A plurality of such bags have their open ends secured around suitable apertures of a plate 5 which is resiliently mounted within a casing 1 so as to separate an inlet 2 and an outlet 3 thereof by rubber strips 6 and is displaced upwardly by abutment of a cam 9 against a pad 11 secured to the plate; the return stroke under gravity being arrested by abutment of a guide bracket 7 against a casing plate 12. Each frame 17 is constructed of channelling having pressed out legs 18 to which the ends of the coil springs 19 are attached.
Patent GB-252813-A (GB)
Title: Improvements in or relating to curtain suspension devices
IPC: A47H15/00
Filed: 1925-03-11
Abstract: 252,813. Allen, A. J. March 11, 1925. Curtains, suspending. - A runway for curtain runners is formed of two parallel strips b spaced apart by rigid transverse members d certain of which constitute attaching brackets. The runners each comprise a wire suspending loop or hook k the lower end of which is cranked inwardly and bent to form a loop or hook k<1>, the upper end being bent upwardly to carry an apertured grooved roller c or a grooved sliding block. For the master runners the upper end of the wire is extended inwardly and formed with an eye to receive the operating cord or to accommodate a small wire clip to grip the cord. In a modified master runner a pair of rollers are carried by a suspension loop or frame having a rearward extension formed with two spaced eyelets, through which the cord is passed, and an intermediate prong to afford a secure grip on the cord. Attachments carrying cord guiding rollers are provided at the ends of the runway and at bents.
Patent GB-382847-A (GB)
Title: Improvements in or relating to sheet feeding devices
IPC: B65H3/08
Filed: 1932-03-05
Abstract: 382,847. Feeding sheets. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Continental Can Co., Inc. ; 100, East 42nd Street, New York, U.S.A.) March 5, 1932, No. 6660. [Class 100 (i).] In connection with a machine for feeding metal &c. sheets from a stack S to a slitting or like machine, in which the rear edge of the top sheet is raised by vertically reciprocating suction devices 5 and is advanced to the slitting- machine by means of a reciprocating pusher 13, the separation of the sheets is effected by means of a suction separator 28 which acts on the front edge of the sheet and after it engages the top sheet by suction is retracted and lifted so as to buckle the top sheet to ensure its separation from the sheet beneath it. The separation 28 is also vibrated after it is raised so as to prevent the adhesion of the underlying sheet to the top sheet. The separator 28 is pivoted in one of several holes 32 in a lever 31 which is oscillated by a cam 38 on a shaft 10. The cam 38 is formed with a series of recesses 42 for vibrating the sucker 28 after it has raised the front edge of the top sheet. The suction devices 5 are vertically reciprocated by cams 9 on the shaft 10, and act to raise the rear edge of the sheet after the separator 28 has completed its action. Pressing devices 27 are arranged near the devices 5 and cause the sheet to be buckled by the devices 5 to prevent double feed, and the devices 5 are lifted quickly by a radial part 9a of the lifting cams 9 for the same purpose. The finger 13 is connected to a crosshead which is reciprocated by a link 17 and a lever 20 oscillated by an eccentric. The suction in the devices 5, 28 is controlled by valves.
Patent GB-176784-A (GB)
Title: Valve gear for steam engines
IPC: F01L31/16
Filed: 1922-03-07
Abstract: 176,784. Lentz, H. March 9, 1921, [Convention date]. Cam gears; valve-spindle guides ; beat or lift valves. -In a locomotive cylinder, lift inlet and exhaust valves 5, 6 are arranged coaxially at each end of the valve- .chest, and are operated by oscillating, central inlet and exhaust cams 9, 16. One of the seats of each doublebeat inlet valve is arranged on the valve-spindle guide. Each pair of valves has a common closing pressure so that when one valve is opened the other is closed more tightly. The valves to the left have a spring 13; those to the right, fluidpressure means comprising a differential piston 25 acting on the inlet valve and housed in the hollow exhaust-valve spindle. The cam-levers 17, 19 are connected by links 18, and are simultaneously rocked by a compound linkage gear.
Patent GB-835548-A (GB)
Title: Manufacture of phenol-aldehyde resins, condensation resins derived solely from furfuryl alcohol and condensation resins of furfural with another aldehyde
IPC: C08G8/28
Filed: 1956-03-02
Abstract: Phenol-aldehyde resins or condensation resins of furfuryl alcohol, or of furfural with another aldehyde may be prepared in two stages: (i) 10-50% by weight of the constituents to be condensed (including catalyst, if any) is precondensed without carrying the condensation to completion; (ii) the remaining portion is added gradually to the precondensate without the nature of the catalyst, if any, being changed, and is condensed in the pre-condensate while the latter is still at about the condensation temperature and the condensation is completed at about the same temperature or a higher temperature.  By gradual addition it is meant that care is taken that only a small portion of the added quantity is reacted at a time and that this small portion is highly diluted in the precondensed resin which enables the heat evolved in the reaction to be readily controlled and dissipated. In the case of phenol-aldehyde resins, the reaction may be terminated by vacuum distillation of the water formed: specified reagents are phenol, cresol, xylenol, resorcinol, formaldehyde, acetaldehyde, propionaldehyde, and, as catalyst in Example (2), cyclohexylamine.  In Example (1) furfuryl alcohol is polymerized in the presence of 1% H2SO4 and the reaction is terminated by adding NaOH.  In Example (3) furfural and acetaldehyde are reacted in the presence of aqueous NaOH.