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    • 31. 发明专利
    • Improvements in apparatus for manufacturing newspaper wrappers and the like
    • GB298755A
    • 1928-10-18
    • GB2486927
    • 1927-09-21
    • ERNEST WILLIAM CLARKFRANK ANTHONY GARRETTR T TANNER & COMPANY LTD
    • B41F13/44
    • 298,755. Clark, E. W., Garrett, F. A., and Tanner & Co., Ltd., R. T. Sept. 21, 1927. Envelopes and the like, making.-A machine, such as that described in Specification 2677/08, for making boxpleated wrappers comprises a rotary printing device adapted to print on the successive lengths of the paper strip which are subsequently severed to form wrappers whilst the strip is being fed through the machine. Paper from a roll 12 passes beneath a gummer 20, associated with a pleating device 18 supported by the framing 10 of the machine, and slitting knives 22 to a printing device comprising a printing roller 44 and a blanket roller 49. These rollers are mounted on spindles 42, 46 journaled at each side of the machine in blocks displaceable along vertical slideways 34, 36 by screw and nut mechanisms operated by vertical shafts 78 geared to a transverse shaft 92 adapted to be rotated by a handwheel on a shaft 100 connected to it by a chain 96. The arrangement allows the spindles to be drawn together or separated to accommodate rollers of different sizes, each roller being formed in identical halves adapted to be secured together on square portions of the spindles. The rollers carry intermeshing gear wheels 104, 106 having a pitch diameter equal to the diameter of the cylinders, the gear wheel 106 on the blanket roller 49 being driven by a gear 114 on a shaft 108 through an idler gear 116 mounted on a frame 118 pivoted about the shaft 108 and adapted to be secured in its operative position by a bolt 120. The speed of the printing roller is thus in inverse ratio to its diameter. The paper is fed forward by pairs of rollers 122, 124 and 138 interconnected by chain gearing, the rollers 124 being driven by the gear 106 on the blanket roller through an adjustable idler roller 130 which engages a gear 128 on the lower roller 124. This ensures that the peripheral speed of the feed rollers is the same as that of the blanket and printing rollers. Each half of the printing roller carries a complete impression to be printed and the shaft 28 of a rotary guillotine knife 24, which cuts the strips into lengths, is therefore driven from the printing rollers at twice the speed thereof. A cam on the shaft 28 operates the slitting knives 22. The inking rollers are driven by a second gear wheel on the printing roller 44 and are mounted in an adjustable frame 144 to adapt them to co-operate with different sizes of printing rollers and to be moved aside to give access thereto. Ink is supplied by a trough 158 and roller 156 mounted on a displaceable bar 160 to a transfer roller 162 mounted on a frame 164 adapted to be oscillated by a slotted link 172 adjustably connected to a link actuated by a cam on the shaft 108.
    • 35. 发明专利
    • A method of and means for registering telephone calls
    • GB184202A
    • 1922-08-04
    • GB417821
    • 1921-02-04
    • EDWARD HENRY KINNARDWILLIAM CLARK
    • H04M15/30
    • 184,202. Kinnard, E. H., and Clark, W. Feb. 4, 1921. Coin-freed systems; meters and metering systems.-In means for registering telephone calls, mechanism working in conjunction with a subscriber's instrument is advanced a number of steps by the exchange, the zeroizing of this mechanism by the calling subscriber serving to effect registration of the call and also to establish the speaking connection. In one arrangement, Figs. 1, 3 and 4, the exchange operator, after making the connection, sends a number of booster impulses corresponding to the character of the called line, which cause the armature 3 of a marginal relay 2, in series with the calling subscriber's transmitter, to step round a ratchet wheel 8 loosely mounted on a spindle 10. A bevel wheel 9 fast with the wheel 8 is geared to a second bevel wheel 13 fast with a second ratchet wheel 14 by means of a bevel pinion 11 carried on a member 12 mounted on the shaft 10. The member 12 also carries a light drum 31 which shows through a window in the casing the number of units of charge to be registered. The subscriber then zeroizes the instrument step by step by depressing the lever 25 on the rock shaft 24 a number of times until the drum 31 has returned to zero, each depression causing a pawl 27 on the arm 26 to step round the ratchet wheel 14,. thus registering the call on a counter 30 operated through gearing 28, 29. A contact member 15 on the shaft 10 normally closing contacts 16 in the receiver circuit, allows them to separate when the mechanism is operated by exchange, only closing them again to complete the speaking circuit when the instrument has been zeroized and the call registered. Means at the exchange for sending the booster impulses comprises a key 46, Fig. 4, which short-circuits the impedance coils 41, to connect the battery 40 directly to the subscriber's line 42, 43. A pilot lamp relay 47 may indicate to the operator when the registration has been effected, and the key 46 may also be in circuit with an exchange recording instrument. A condenser is shunted across the electromagnet 2 to prevent its operation by ringing currents. If the subscriber replaces his receiver without zeroizing his instrument, this operation may be effected and the call registered, by means of a heart-shaped cam 17 mounted on the spindle 10 and operated by a lever 18 linked with the receiver hook. A stop on the lever 18 engaging with a pin on an arm 23 on the shaft 24, normally prevents the operation of the lever 25. To prevent more than the required number of operations of the lever 25, a cam 118 spring-pressed against a stop 119 on the contact member 15 engages with an arm 120 on the shaft 24 when the member 15 is in its zero position. In a second arrangement, Figs. 7, 10 and 11, a charge wheel 70, Fig. 7, at the exchange, having finger holes 72, an index ring 73 bearing consecutive numbers, and a finger stop 96, is set by the operator to a position corresponding to the number of units of charge for the called line, and is held set by spring pawls 97. The wheel carried on a sleeve loosely mounted on a spindle is connected through a spiral spring to a disc fixed to the same spindle, this disc having attached to it an escapement wheel 83 and an annular plate 89 provided with an inwardly-directed flange in which is an insulating segment 92, the plate 89 being insulated from the other parts by a circular washer. When the wheel 70 is set, the spiral spring is tensioned, but is prevented from driving the escapement wheel 83 by the pawl 84 which is connected by a link 88 to the armature 77 of an electromagnet 76. Brushes 93 fixed to the wheel 70 engage with the insulating segment 92 when the instrument is at zero, but are in conducting connection when the wheel is set. The wheel also carries slip rings 94, with which brushes 95 on the index ring 73 continually engage. Fig. 11 shows the exchange connections. When the called subscriber replies, a supervisory relay 109 is energized to complete a circuit from the central battery 101 through the brushes 95, slip rings 94 and brushes 93 now in conducting connection to operate a reversing relay 108. The reversal of the current in the subscriber's induction coil 65 causes a pivoted consequent-pole permanent magnet 66 to move over, thus causing an attached cam to close a contact 69. A circuit is now completed from earth through battery 101, electromagn et 76, line 102 , coil 65, contact 69, electromagnet 55 to earth. The energization of the magnet 55 at the subscriber's apparatus, Fig. 10, causes a rotatable flag member 53, normally held up by a bell-crank lever 61a engaging the armature 56, to drop into visible position before a window in the casing to notify the subscriber that registration must be effected, whilst at the same time the springs 55 short-circuit the receiver 110. The subscriber then depresses a spring-pressed lever, thereby operating a counter 52, opening normally-closed contacts 117 in the earth-circuit of the magnet 55, and, by means of a pin 62 on a disc 63, restoring the flag 53 to invisible position. De-energization of the magnet 76 by the opening of the contacts 117 allows the wheel 83 to move round one step under the control of its spring and the pawl 84. If the charge wheel has been set for more than one unit, the magnet 55 is again energized, the flag 53 reappears, and the subscriber continues operating his lever until the charge wheel 70 is zeroized, the circuit o:' the reversing relay being then permanently broken at the insulation 92, and the call fully reg stered on the counter 52. In order to prevent the registration of a call when the called line is engaged, the casing 75 containing the electromagnet 76, its armature 77 and the pawl 84, may be pivoted to the main casing 74, being held in position by the leaf spring 116. The withdrawal of the cord plug 105 from the wanted line may, by its weight, cause the casing 75 to rock about its pivots 114, thus freeing the pawl 84 and allowing the number wheel to be zeroized. Alternatively the casing 75 may be mounted on a cover which overlaps the charge-wheel rim, the removal of the cover causing the zeroizing of the wheel. In telephone call boxes, the hand lever may be actuated by coins instead of by hand. One Provisional Specification describes a modification of the arrangement shown in Figs. 1 and 3 in which the marginal relay operates a spring-retarded ratchet wheel having a contact arm which closes the line circuit when in its zero position, but opens it when otherwise; the subscriber's press-stud operates an anchor or like escapement for restoring the ratchet wheel, the stud at the same time operating an adjacent counter. After a predetermined time, the exchange may again break in, operating the marginal relay and causing a further registration. In an alternative arrangement, the ratchet wheel may rotate the counter. To avoid ringing a subscriber who has left his call and not replaced his receiver, the ratchet wheel may be provided with a second contact arm which requires several impulses to bring it into circuit for restoring the line. Another Provisional Specification describes a modification in which the charge wheel consists of a pivoted wheel provided with figures, and having a metal contact sector near its periphery, whilst adjacent to the wheel and on the same axis is a switch arm having a pointer attached, moving over the sector.
    • 36. 发明专利
    • Improvements in and relating to electrical resistances
    • GB171451A
    • 1921-11-09
    • GB2332920
    • 1920-08-09
    • WILLIAM CLARKCLARK S NEO ELECTRIC DEVICES L
    • H01C10/46
    • 171,451. Clark, W., and Clark's Neo- Electric Devices, Ltd. Aug. 9, 1920. Regulating-switches.-Relates to the construction of variable resistances for use in Wheatstone bridge and like apparatus. Superposed concentrically-mounted members are independently rotatable about their common axis for varying the resistance and giving a direct visual indication of its value. Superposed hand-setting wheels 5, 6, 7, 8 are mounted on concentric tubular spindles 43, 44, 45, 46 respectively carrying resistances movable over stationary brushes as shown in Fig. 1, or alternatively brushes movable over stationary resistances. In the construction shown, the spindles 43, 44, 45, 46 carry drums 11, 12, 13, 14 respectively, and each drum is formed with a contact ring 15 between which and each of a series of circular contact plates 16 are disposed resistances of known value. A standard 17 carries a brush 19 connecting a lead 18 to the ring 15 of the drum 14, brushes 39, 40 connecting the contacts 16 of the drum 13 with the ring 15 of the drum 12, and a brush 22 connecting the contacts 16 of the drum 11 to a lead 23. A second similar standard carries brushes 20, 21 connecting the contacts 16 of the drum 14 with the ring 15 of the drum 13, and brushes 41, 42 connecting the contacts 16 of the drum 12 with the ring 15 of the drum 11. Each drum 11, 12, 13 carries an arm 24 to which is secured an upright 25. To the top of each upright and directly to the drum 14 is secured a circularly-curved plate 38 bearing numerals corresponding to the resistance in circuit on the corresponding drum. By making the resistance carried by the drums 11, 12, 13, 14 suitable for adjustments in thousands, hundreds, tens, and units respectively, a direct indication of the total resistance is given by the passage of the plate 38 beneath openings 9 in the cover 10.
    • 37. 发明专利
    • Improvements in core boxes for foundry use
    • GB168375A
    • 1921-08-26
    • GB1438620
    • 1920-05-26
    • EDWARD WILLIAM CLARK
    • B22C9/10
    • 168,375. Clark, E. W. May 26, 1920. Core-boxes; cores.-An adjustable core-box is described with particular reference to the production of a core such as is shown in Fig. 8 for use in casting the piston shown in Fig. 9. The body W, Figs. 1 and 2, of the core-box is connected to the point-forming member P by screws 6 passing through an interchangeable annular distancepiece E. Rings 11 provide for varying the amount of metal in which grooves 10, Fig. 9, may be turned. Flanged discs 15 carry-members 20 according to the gudgeon pin bosses required. The members W, E, P are in halves, dowelled lugs 2, 3 providing for registration. Clamps 50 secure the assembly and at the same time hold the discs 15 in position. The member H slides in the upper part of the body and the position of the annular portion 25, Fig. 3, determines the amount of metal for the reception of the packing- ring grooves on the piston head. The position is adjustable by the flange 26 sliding on rods 23 and engaged by screws 24 provided with lock-nuts. The distance of the piston head from the gudgeon pin is determined by the adjustment of the member H at 36, 37, 39, When the.catch 40 has been engaged in the groove 44, relative movement of the members H , H is prevented. The member H has a central boss 30 and ribs 29 to produce the parts 30 , 29 , Fig. 9, and blades 45, 46 independently adjusted in slots in the member H provide for producing continuation ribs along the piston shirt. The blades in the plane of section, Fig. 2, are arranged to abut against the members 20. Flanges 48 provide a support for the box in inverted position for ramming.
    • 39. 发明专利
    • Improvements in folding handles
    • GB161046A
    • 1921-04-07
    • GB517920
    • 1920-02-20
    • WILLIAM CLARKCLARK S NEO ELECTRIC DEVICES L
    • F02N1/00
    • 161,046. Clark, W., and Clark's Neo- Electric Devices, Ltd. Feb. 20, 1920. Hand driving-mechanism.-Relates to cranked handles for imparting rotation to mechanism of various kinds and of the type which are hinged so that they can be folded flat against the cover, base, or other part of the mechanism, and comprises a handle capable of turning about the axis of the crank between an operative and an inoperative position in either of which it may be secured by yieldable means, the arrangement being such that the force required to drive the mechanism is applied in the same direction as the force required to maintain the handle in operative position on the arm. In the form shown, the crank b of a shaft a passes through an aperture in the end of the arm d carrying the handle f. The arm d is formed on its lower face surrounding the crank b with two ratchet teeth g, Fig. 2, adapted to engage a pair of similar teeth on a collar h fixed to the crank b, the teeth being so disposed that the driving-force on the handle acts to maintain it in operative position. A spring i secured by a screw j holds the members d and h in resilient engagement. Notches m, Fig. 4, are provided on the collar h in a position at right-angles to the ratchet teeth q so as to engage the teeth on the handle arm d when the handle is folded flat against the cover.