baber/WOPTO huggingface dataset:
Patent GB-516466-A (GB)
Title: Improvements in and relating to spinning machines
IPC: D01H1/00
Filed: 1938-06-26
Abstract: 516,466. Drawing apparatus for long-fibred yarns. MACKIE & SONS, Ltd., J., and MACKIE, J. P. June 26, 1938, No. 18601/39. Divided out of 509,493. [Class 120 (ii)] In machines for spinning flax, hemp, jute and other long fibre yarns direct from sliver without the use of gills, as described in Specification 407,690, the sliver on leaving the nip of the retaining rollers makes continuous contact over a length equal to at least one quarter of the reach of. the frame with a surface extending from the nip of the retaining, rollers and moving at a constant speed so that a slip draft effect is produced. The sliver may pass over a number of surfaces in succession. The surface may be constituted in part by one of the retaining rollers 2, Fig. 1, the arc of contact being adjusted by a roller 9 which, together with an adjustable conductor 10 also exercises a slip-draft effect. Other arrangements involving the use of one of the retaining rollers are described with reference to Figs. 2 and 5 (not shown). A co-operating band 18, Fig. 3, may be used in conjunction with the retaining roller 2, or a band with cooperating pressing rollers may be used, Fig. 4 (not shown). The. rollers may be grooved to restrict the spreading of the sliver as described in Specification 509,493 and, additionally, to effect a longitudinal folding.
Patent GB-406185-A (GB)
Title: Process for sealing off gas-filled vessels such as electric incandescent lamp bulbs
IPC: H01J9/40
Filed: 1933-06-30
Abstract: 406,185. Making electric incandescent lamps. VEREINIGTE GLUHLAMPEN UND ELEKTRICITATS AKT.-GES., Ujpest, near Budapest. June 30, 1933, No. 18619. Convention date, June 30, 1932. [Class 39 (ii).] In a process of sealing-off vessels such as electric incandescent lamp bulbs or the like which contain gas and are provided with a sealing tube, the vessels being made of glass or other vitreous material, or provided with a sealing tube of that material, the sealing-off is effected by heating the tube until it is plastic but not capable of being blown out by the pressure of the gas inside it, and then compressing or pinching it by means of a tool. The pinching tool may be heated, and in the form of shears with co-operating edges or faces of various shapes, or may simply produce a closed flattened portion which can be broken off subsequently, Fig. 2 shows one arrangement wherein the sealing-tube 3, heated by gas burners 6, is pinched and severed by co-operating faces of tools 7, 7<1> provided with cutting-edges 9, 9<1>, Fig. 6. The process may be modified by stopping the pinching operation before the tube is completely closed, leaving a capillary opening which is afterwards closed by reheating. Vessels containing gas at a pressure greater than atmospheric may be sealed off in this way.
Patent GB-638374-A (GB)
Title: Improvements in or relating to the treatment of aluminium oxide coatings
IPC: C23C22/83
Filed: 1947-07-14
Abstract: Oxide surfaces chemically produced on aluminium or aluminium-base alloy articles in an alkaline solution, are rendered more adsorptive (especially as respects dyes) by immersion in an aqueous solution of at least one ammonium, aluminium or magnesium salt of a monovalent acid.  The salts preferred are the chloride, nitrate, acetate, formate, sulphamate of ammonium; the chloride of aluminium; the chloride, acetate of magnesium: and are used in total amount of 0.5-10 per cent by weight.  The solution is used preferably at a temperature above 170 DEG  F, and should have a pH below 7.5 and preferably between 5 and 7.  Specification 212,504, [Class 82(ii)], is referred to.
Patent GB-730260-A (GB)
Title: Improvements relating to rocket motor and like structures
IPC: F42B15/34
Filed: 1953-07-06
Abstract: A refractory ceramic material for the combustion chamber and discharge nozzle liners of a rocket motor is formed from silicon carbide and boron carbide, and a temporary binder such as polyvinyl alcohol, dextrin, concentrated waste cellulose sulphite liquors and powders, or various resins may be added.  A further composition is silicon carbide, ferromanganese-silicon powder and dry lignone. Pore-forming material such as ground coke or carbon or sawdust may be added.  The mixtures are heated in a nitrogen atmosphere.  Other compositions are silicon carbide and boron and zirconium carbides, or boron carbide, silicon carbide and zirconium carbide.  The liner parts are mounted in a metal shell, a mass of refractory cement such as calcium aluminate, aluminium oxide-sodium silicate, or zirconia-sodium silicate compositions, being disposed therebetween. The cement may be rendered porous by adding pore-forming material such as hydrogen peroxide.  Another composition for the cement is silicon carbide, sodium silico fluoride and sodium silicate solution, this cement having a relatively high thermal conductivity.  The exact proportions of the various substances referred to are given.
Patent GB-369820-A (GB)
Title: Improvements in or relating to trusses particularly for use in aircraft structures
IPC: B64C1/06
Filed: 1931-06-27
Abstract: 369,820. Aircraft framework. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia, U.S.A.- (Assignees of Tarbox, J. P. ; 5025, Schuyler Street, Germantown, Pennsylvania, U.S.A.) June 27, 1931, No. 18673. Convention date, July 22, 1930. [Class 4.] A truss structure applicable to aircraft spars and ribs comprises chords 10, Fig. 5, of light gauge sheet material stiffened throughout its length by a triangulated system of beading or corrugation, and intervening webbing 16 whereof the portions secured to the chords are interlocked with the beading or corrugations. In the form shown the chords 10 are flanged at either side at 12 and have three longitudinal corrugations 13, 14, 15 respectively corresponding to three sets of webbing 25, 26, 27. Angularly disposed corrugations 19 cause the formation of trapezoidal raised portions 20 which are alternately disposed as regards the location of the major and minor bases. The webbing 16 is in the form of continuous Warren girders of channel section flattened at the apices 17 and provided at these points with beads 18 which interengage with the corresponding corrugation 13, 14 or 15 at the position of a minor base of one of the trapezoidal projections. Assembly is effected by progressively spot welding the sets of webbing to the inner faces of the chord members. The chord members need not be spaced apart at a constant distance but may approach one another to form a tapered structure, and the number of corrugations and hence of sets of webbing may be varied as well as the angularity of the latter.
Patent GB-1001745-A (GB)
Title: Nuclear reactors
IPC: G21C1/08
Filed: 1964-05-05
Abstract: 1,001,745. Reactors. HITACHI Ltd. May 5, 1964 [May 10, 1963], No. 18684/64. Heading G6C. A nuclear reactor has a core cooled by closed loop circulation of pressurized water, said loop containing a once through secondary coolant system which comprises boiling and superheating regions, the former being arranged adjacent the core periphery for neutron reflecting purposes. The core 1 is housed in an openended zircalloy or stainless steel tube 2 having a primary coolant (water) pump 3 at its lower end. Secondary coolant enters at 5, passes through preheating coils 6, boiling region 7 and superheater 8, leaving the reactor via valve 12 as dry superheated steam. All pipework is zircalloy or stainless steel. Periodic topping up of primary coolant is achieved through port 10, as is venting of accumulated gaseous fission products. Self-regulation is achieved to the extent that increased heat output from the core causes increased voidage in the boiling region 7.
Patent GB-671200-A (GB)
Title: Improvements in the manufacture of chocolate
IPC: A23G1/04
Filed: 1950-07-26
Abstract: 671,200. Cocoa. VERDIER, A. L. July 26, 1950, No. 18706/50. Class 129. In the manufacture of chocolate crushed cocoa beans are reduced to a pasty mass by extracting therefrom, e.g. by squeezing the liquid mass in a centrifugal machine or a filter press, most of the cocoa-butter, sugar ground to the fineness desired in the final product then being incorporated into the extracted cocoa-butter at a temperature of at least 70‹ C. and in the presence of extra cocoa-butter, so that the sugar is uniformly distributed, the resulting mass being squeezed to reduce the cocoa-butter content to the desired amount and the liquid thus obtained being added to the aforesaid pasty mass. Lecithin may be added to the cocoa-butter to aid dispersion of the sugar.
Patent GB-229935-A (GB)
Title: Improvements in or connected with collars for personal wear
IPC: A41B3/12
Filed: 1924-08-07
Abstract: 229,935. Thorp, A. Aug. 7, 1924. Collars, linen and. like.-A double collar is provided at its front edges with slits a through which the ends of the necktie are passed before being tied in front of the collar. The slits may be arranged parallel to, or at an angle to the front edges of the collar, and may be closer to the fold of the collar than is illustrated. The neck-band of a made-up tie may be similarly passed through the slits, or the latter may be engaged by a fitting, such as that shown in Fig. 4, attached to a made-up bow or tie and comprising a safety pin 3 carrying a plate 4.
Patent GB-692291-A (GB)
Title: Improvements in deck chairs
IPC: A47C7/50
Filed: 1951-08-09
Abstract: 692,291. Seats; furniture joints. O'NEILL, R. A. Aug. 9, 1951 [Aug. 12, 1950], No. 18819/51. Class 52(ii) A deck chair is constructed with a metal frame and its component parts are arranged and constructed so as to distribute the load or weight of the occupant. As shown the seat side members 1 are formed of rectangular tubular metal connected together by cross tubes 4, 5 and bent rearwardly to form rear legs 3. The back rest is also formed of rectangular tubular metal the side members 12 being connected by a top member 13 and other cross members 14, 15. A similar leg or foot rest frame 32, 33, 34 is pivoted to the front of the seat. Front legs 7 are interconnected by a cross tube 24 and are pivoted intermediately to the seat frame and to arm rests 11 which latter are also pivoted'to the back rest. The pivoted connections between the back rest and the seat comprise brackets 17, secured to the seat frame, carrying a pivot 21 and stop member 18. The lower ends of the back rest members 12 are reinforced by a plug 47 and are notched at 19 to engage the stop 18 when the back rest is in its operative position. The pivots connecting the seat and the foot rest comprise a plug 26 forked at 27, 28 to enter the side members ,1 and straddle the cross member 4. This plug 26 is apertured to take a pivot pin 29 carried by a plug 30 at each end of the cross member 31 of the foot rest frame Which, as shown, is provided with supports 34, 36. The frames are preferably provided with plastic lattice 6, 16. This lattice 41, Fig. 9, by being wrapped around such a is secured to the frame members such as member and with the end 44 engaged in a U-shaped clip 45 which is then secured to the frame member by a screw member 46.
Patent GB-357242-A (GB)
Title: Improvements relating to the picking and checking of shuttles in looms for weaving
IPC: D03D49/24
Filed: 1930-06-20
Abstract: 357,242. Loom picking and shuttle checking mechanism. PLATT BROS. & CO., Ltd., Hartford Works, Oldham, and TOYODA, K., Shirakabecho, Nagoya, Japan. June 20, 1930, No. 18825. [Class 142 (iii).] In looms in which a side lever d operated by a roller f on a disc g on the tappet shaft engages a shoe k on the picking stick j to turn it against the action of a spring l, a leather or steel band w is secured to the end of the side lever, passes around the friction surface of a fixed block m and has its other end connected to a block r oscillatable about a stud q and urged in a counterclockwise direction by a spring. When the lever d is depressed to effect the picking, the block r turns to a position limited by a stop v. When the incoming shuttle turns the picking stick, the shoe k raises the lever d against the checking action of the band w.
Patent GB-727022-A (GB)
Title: New or improved current sensitive switches and electric irons embodying such switches
Inventor: RUSSELL WILLIAM MORRIS
IPC: H05B1/02
Filed: 1951-08-13
Abstract: 727,022. Electric heating; current supply. MORPHY-RICHARDS, Ltd. Nov. 13th, 1952 [Aug. 13, 1951], No. 19012/51. Drawings to Specification. Class 39 (3). [Also in Group XXXVII] A smoothing iron adapted for operation on two voltage ranges (e.g. 100-120 or 200-250v.) and having main and ancillary heating elements (e.g. as disclosed in Specification 710,422) includes a switch (see Group XXXVII) whereby when the iron is connected to the higher voltage range only the main heating element is energized, whereas when connection is made to the lower voltage range the switch operates automatically to connect the ancillary heating element in parallel with the main element.
Patent GB-620767-A (GB)
Title: Improvements in or relating to circuits for amplifying electrical oscillations
IPC: H03G1/00
Filed: 1946-06-26
Abstract: 620,767. Thermionic valves. PHILIPS LAMPS. Ltd. June 26, 1946, No. 19084. Convention date, March 15, 1943. [Class 39 (i)] [Also in Group XL (c)] A thermionic valve amplifier comprising at least two discharge paths in parallel, one having a high average mutual conductance and a small grid control range and the other having a small mutual conductance and a large grid control range, is arranged so that only the path with a high mutual conductance operates for small input amplitudes, while only the other path is effective for high input amplitudes. As shown, Fig. 1, both discharge paths are provided in a pentode 1 having a screen grid in two parts 3, 3<1> insulated from each other. The control grid 2 has a portion wound with constant pitch, in the discharge path having high mutual conductance and a portion wound with varying pitch in the other discharge path. The part 3<1> of the screen grid, forming an auxiliary electrode in the path controlled by the variable pitch portion of the grid 2, is connected to the common anode through a high resistance 10. The portion 3 of the screen grid is connected to a potentiometer 7, 8 across the H.T. supply, the anode being supplied through a resistance 12. The input, together with a negative control voltage dependent on its amplitude, is applied to the control grid. For large amplitude inputs the high mutual conductance path' is cut off, while for low amplitude inputs (low control voltage) the voltage drop across resistance 12 causes the voltage on the auxiliary electrode 3<1> to fall and cut off the low mutual conductance discharge path. In a modification (Fig. 3, not shown), the auxiliary electrode is connected to the cathode through a resistance, while the supply to the screen grid in the high mutual conductance path is taken from the H.T. supply through a resistance. With this arrangement an exponential characteristic can be obtained. For high-frequency operation, a tuned circuit may be connected in series with the anode resistance, which is byepassed for the operating frequency.
Patent GB-705863-A (GB)
Title: Improvements in or relating to plain bearings
Inventor: FORRESTER PETER GARNETT
IPC: F16C33/14
Filed: 1951-08-14
Abstract: A steel backing strip for making bearing liners (see Group XXII) is coated with a layer of composite metallic material such as copper-lead by spreading loose or pre-alloyed or mixed copper-lead powder having a composition 70 per cent. copper, 30 per cent. lead on to the steel backing to form a layer of approximately 0.110 inch in thickness, said backing having previously been prepared as by copper plating, and then lightly sintering the copper-lead at a temperature of about 890 DEG C. for about 15 minutes to knit the particles together and bond the copper-lead structure to the backing.  A copper-lead having a composition 60 per cent. copper and 40 per cent. lead may be used and sintered at 850 DEG C.
Patent GB-398981-A (GB)
Title: Improvements in cutter bars of mowers or like machines
IPC: A01D34/16
Filed: 1932-07-06
Abstract: 398,981. Mowing &c. machines. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd., 259, City Road, London. - (International Harvester Co. ; 606, South Michigan Avenue, Chicago, U.S.A.) July 6, 1932, No. 19130. [Class 6 (iii).] To prevent knife clips 8 wearing away the surface of knife sections 6, a plate 9 is provided under each of the knife clips and on the knife sections, the plate being so proportioned that at the extreme end of the stroke of the knife in either direction one end of the plate arrives at a position at the centre of the knife clip or just beyond the centre. The plate 9 which is preferably made of hardened steel is fitted with one or more studs 10 which project downwardly through corresponding holes in the knife sections and the knife bar. The plate is provided with holes and recesses to take the heads of the securing rivets for the sections. The plate may be screwed to the knife bar instead of being loosely attached thereto and its front edge may be provided with a vertical flange or a turned over portion, the rear of which engages the nose of the knife clip.
Patent GB-771265-A (GB)
Title: A device for stripping weft from discarded bobbins in automatic bobbin change looms
IPC: B65H73/00
Filed: 1955-07-04
Abstract: 771,265. Stripping waste from bobbins. PROBETS, G. E. July 4, 1955, No. 19254/55. Addition to 708,675. Class 120 (3). In the device for stripping waste weft from a bobbin of the parent Specification, a member pivotally mounted on the device is operatively connected to the loom bobbin change mechanism and is adapted to engage with a bobbin resting on the nip rollers and discharge the bobbin when the member is caused to swing about its pivot upon operation of the loom bobbin change mechanism. In the operation of the apparatus shown, a pirn 52 discarded from the loom falls into a hopper 12 and is directed to stripping rollers 14 and 16 ; when a further bobbin change in the loom occurs, a rod 50 is moved (in the direction of the arrow " A ") by the bobbin change control rod to rock a lever 46 whereby a link 44 is moved (in the direction " B ") to rock an ejector plate 36 and cause it to push the pirn 52 against a pivoted door 30 which opens, to allow the pirn to fall out of the frame 10 of the device through a cut away portion 28, and then closes under the influence of a weight 34 or spring (not shown). The ejector plate is returned to its inoperative position by the rod 50 and another into the hopper to recommence the cycle of operations.
Patent GB-498049-A (GB)
Title: Improvements in phosphate glass
IPC: C03C3/19
Filed: 1937-07-13
Abstract: 498,049. Glass manufacture. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) July 13, 1937, No. 19393. [Class 56] Phosphate glass which is easily fusible and is not readily soluble in water is composed of 34-44 per cent of P2O5, 20-30 per cent of Al2O5, not more than 15 per cent of B2O3, and at least 25 per cent of alkali. Both Na2O and K2O are essential, the content of Na2O being from 8-21 per cent and of K2O from 5-21 per cent. Up to 3 per cent of Li2O may be present, and part of the B2O3 may be replaced by ZnO in amount not exceeding 6 per cent. Not more than 5 per cent of BaO may be included. Examples of suitable batches are given in the Specification.
Patent GB-240974-A (GB)
Title: Improvements in or relating to apparatus for humidifying and/or cleaning air
IPC: F24F6/04
Filed: 1924-08-18
Abstract: 240,974. Hall, D., Kay, J. H., and Hall & Kay, Ltd. Aug. 18, 1924. Air, moistening.-Air used in textile mills is humidified and purified from dust by being blown down a tube 5 of uniform cross-section on to a water surface surrounded by a grid 7 supported on a flange 6 of the tube 5 and extending below the water surface, the area of the spaces 8 of the grid above the surface being not less than the crosssectional area of the tube. The impact of the air on the water causes waves which are broken up by the grid to form spray through which the air passes. Baffle plates 10 are provided to intercept surplus moisture and dust not caught by the spray. The impurities settle to the bottom of the container 4 and are removed through an opening 12 having a hinged lid 13. The grid may also be supported from the sides or bottom of the container and its fingers may be of scalloped shape and bent inwards or outwards.
Patent GB-370764-A (GB)
Title: Improvements in fly wheel magnetos of internal combustion engines
IPC: H02K21/22
Filed: 1931-07-07
Abstract: 370,764. Magnetos. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. July 7, 1931, No. 19524. Convention date, July 12, 1930. [Class 35.] In a flywheel ignition magneto having the armature mounted on a stationary plate, the make-and-break device is arranged in a separate chamber about the flywheel hub which chamber is closed by a cylindrical sleeve in wiping contact with the flywheel. The rotating cam 4 on the flywheel hub 1 projects into a cylindrical chamber 5 in the baseplate 7. The interrupter mechanism 12 is located in a casing 13 forming part of the bar plate and closed by a cover 14. The casing 13 has an aperture for the passage of the sliding arm 16 of the contact-breaker lever 17. A sleeve 19 formed with an annular groove 18 containing packing 20 rubbing on the flywheel limb closes the cam space 5 and prevents the entry of dust &c. into the interrupter mechanism. The sleeve 19 is provided with an opening 21 coincident with the aperture in the casing 13 and an opening 22 covered by an oil-saturated strip of felt 24 which is pressed against the cam by a leaf spring 25 secured to one of the armature cores 8.
Patent GB-141262-A (GB)
Title: Differential feeding mechanism
IPC: D05B27/02
Filed: 1919-08-08
Abstract: 141,262. Fairweather, W., (Singer Manufacturing Co.). Aug. 8, 1919. Sewing-machines ; feed by dogs.-In a differential feeding mechanism, as described in Specification 129,897, both feed-dogs are pivotally connected to the same rock frame, but the rising and falling movement of one is, imparted to it by the other through a differentiator which causes the feed-dog to withdraw from the work before the feeding stroke is completed. The time at which this withdrawal takes place is determined by the adjustment of the differentiator. The invention consists in providing means by which it can be altered during the running of the machine. The feed-bar 11 carrying the feed-dog 5 receives an unalterable rising-and-falling movement. Pivoted at 34 upon this feed-bar is a lever 36 anchored by a link 37 to a fixed bracket 38 and having a transverse slot 39 in which slides a block 40 pivoted upon a pin 41 adjustably carried by a feed-bar 31 which carries the feed-dog 29. When the pin 41 and the pivot 34 are co-axial, the feed dogs operate together. When by the movement of a, manually-controlled lever 48 the slide 43, carrying the pin 41, is moved and the pin 41 is no longer co-axial with the pivot 34, the forward movement of the feed-bar 11 will cause the lever 36 to tilt, carrying the pin 41 upward or downward, in accordance with its position in relation to the pivot 34, and thereby the effective stroke of the feed-dog 29 is prolonged or shortened and the material stretched or crowded. Presser feet.-The presser-foot, Fig. 1, comprises a shoe 54 pivoted at 56 to a bar 57 pivoted at 58 to the rear portion 55. A spring 59 presses upon the bar 57.