US1112895A - Numeral-wheel-resetting device. - Google Patents

Description

H. E. DBLVIN. NUMERAL WHEEL RESETTING DEVICE. APPLICATION FILED JULY 22, 1912.

1,1 12,895. 'Patentad m. 6, 1m.

DELVIN, or New YORK, N. Y.

NU'MERLL-NHEBLJtESLETTING DEVISE.

Specification of Letters Patent.

Patented Oct. 6, 1914.

Application filed July 22, 1912. Serial No. 710.349.

To all i071 out it may concern le it l(l1OWIl that l, llyvu'r E. DnLvIX, a citizen of the United States, and a resident of New York. in the county of New York and State of New York, have invented certain new and usetul Improvements in Numeralll heehllesettiug Devices, of which the following is a specification.

This invention relates to improvements in registering devices and particularly to hat class in which a row of numeral wheels are displayed showingthe sum total arrived at by adding or subtracting mechanisms combined therewith.

The objectv ol? the invention to enable an operator to set at zero or initial posh tiou. the numeral wheels in such mechanisms. by novel and convenient means, exi'ieditiously and positively.

This object is attained by the instrumentation hereinafter described and shown in the accompanyiiur drawings. in which l in'ure 1 is z partial plan view of a registering mechanism, the cover being removed. Fig. 2 an end view oi the same, the side plate being removed to show the general arrangement and relation of parts.

"in. 8 is a pcrspcctiw view oi the cam washtaoperating the engaging means. Fig. -l is a similar perspe tive view of a numeral wheel and its drive gear. Fig. 5 is a like perspective view oi the ratchet and its shaft. Fig. (i a perspective view or the sleeve and shatt upon which the numeral wl'zeels are mountcth Fig. 7 a similar view sluuvingr the arrannemtuils of the operative parts involved. and. hip. 8 is a transverse sectional view, ltiliti'l on line 8 8 ot Fig. 7.

'l 'he. uun'icral wheels or disks it). which are free to revolve in either direction. have on their periphery the numerals 0 to t) inclu. sive and are arranged side by side with a gear wheel 11 secured as; a unit to each numeral disk, the near wheel transmitting motion trom a tuating mechanism not being: shown. These. numeral wheels are mounted so as to revolve treely upon the sleeve 20, partially ei'ivclopingr the shaft 12 near one end of which is a fixed collar 13, having groove 14 adapted to act as the bearing for the rod l5. which is rigidly connected with the. curved plate 16 normally resting on the shaft 12 and provided at its outer front edge with a series of projections 17 arranged so that each projection is in register with an internal tooth lS torrned in the enlarged bore 18' )f the gear 11. The teeth lo are arranged with respect to the numerals so that when the entire row of ciphers appear in alinement the several teeth 18 will also be in alineinent and will be in position to engage with the projections 17 of the plate. The opposite end of the plate 16 is revolubly secured in the gear it) which transmits motion to it. The plate 16 is adapted to operate within an open space or groove 21 formed in the sleeve 20 and is driven by the gear 19 rotatable within a recess formed in the inner side of the irai'ie plate at the opposite side and in the corresponding frame 26 is rigidly serurcd a thin collar or washer 27 through which the shatt 12 extends and which is provided with an annular opening 28 havinna recess or depression 25) acting as an internal cam adapted to receive the end of a lever 30 pressed against the said recess by means at the spring 31 and so arranged that when the lever is disposed within the recess the numeral wheels and gears are tree to revolve ou the surface of the sleeve over the plate 16 and clear of the teeth t7. the gears being): rotated as is usual.

illcshiug; with the gearlflis a spur gear 36 ecured to the shaft 35 which has rigidly upon it the ratchet 3T actuated by the pawl :38 having the s n-inn; 39 and being pivotedto the plate 40 secured to the side of the. pinion -ll. both pinion and plate being freely mounted on the sha'tt 33. en the step 40,

while-.thc ste )8 3(3' and ll) respectivel 1 receive the spur ejcar and pawl plate.

hl otion is conveyed to the pinion ll by means of the rat-l: 42 when pressure is applied to the button head 43 ot' the latter and the resistance of the return spring ll overcome; the rack bar has a bearing in the cover plate (not shownl and also a foot bearing -15.

ll hcucvcr it may be desired to set :11 of the numeral wheels to their initial position the numeral wheel driving: mechanism is disengaged and the button if; depressed whereupon-pinion l l is caused to rotate, transmitting motion to the gear 13' through the pawl and ratchet wheel -37 which caused the near '19 to revolve, acting to turn the plate It; around the shaft the projections 17 picking up the. teeth 18 in the numeral wheel gears ll at any point where they may chance to be, moving them all into alinemeiit so that a row of liliegeharacters appear at the opening, Where vist'ial registration is obtained. Obviously the first efi'ectsof rotating the gear 19 is to raise the projections above the concentric surface of the sleeve 20 by reason of oscillati-ngthe lever so as to cause it to leave the recess 29 and travel in;

"fetid disks, en'gagn'ip means combined With an annular path one complete revolution around the interior of the Washer 27. Upon releasing the button it will return to its orig-inalnormal position at which time the lever 30 is in the depression 29 and the projeetion 1! removed out of engagement with the teeth 19 so that the gears and the numoral wheels can revolve 'as"i"equire'd for corn utation. I

aving thus described my invention and the manne ryof its l1$e,'-Whai I claim as new and desire to secure by Letters Patent is:

I. Ina device of the class described, the Icoinbination with a'plurality' of independent Qindicating disks,'-of a fixed shaft, a sleeve rotatable on said shaft and on Which'said disks are revolublymounted, a toothed flijnember,

lon itudinally disposed in a slot formed in" sai sleeve, means for engaging said toothed 'member with the interior of said disks means for turning them to a predetermined point uniformly and means for disengaging said disks when so turned, all of said means being combined with and dependent upon the rotation of said sleeve.

' 2. In a device of the class described, the combination with a plurality of numeral disks and a housing therefor, of a shaft for said disks, a sleeve revolubly mounted thereon having a longitudinal groove therethrough, a pawl plate carried in said groove pivoted at each end near the edge, a plural-= ity of projections, corresponding to the numeral disks formed uponits outer opposite edge, means for causing said projections to.

engage internally with the numeral disks and means combined therewith whereby said disks may be rotated to a uniform position relative to the numerals thereon.

3. In a device of the class described, the combination with a shaft, a sleeve rotatable thereon, .a frame therefor and a plurality of numeral disks mounted on said sleeve, of a plate fitted in a longitudinal slot in said sleeve and pivoted to oscillate in the slot, at

lever attached to said plate at one end thereof, a spring adapted to force said plate inwardly, a camset in the frame engaging said lever adapted, to force said plate'outwardly, a projection in a recessed portion of ntercepting said projections qrhe turned to register a unierals, and means for acsaidplate fo whereby the uniform row 0 tuating said pla z a. Ina device of the class described, the

combination ivitha shaft and a plurality of,

5. In a device of the class described, the combination with a pluralit of independently, rotatable indicating disks, of a tooth formed in an annular-recess in each of said disks concentric fv'vith, their bore, a sleeve upon which said disks are freely mounted to turn in either direction, said sleeve having alongitudinal opening, a shaft within said sleeve, a curved plate pivotally disposed in said opening, a. gear at one end of said shaft, connections between said plate and said gear grhereby the plate may be revolved around fthe shaft, a lever attached to the other end 'ai d platefan internal cam operatively .cn iging said lover whereby said plate maybe raised from said shaft and caused to engage with the teeth formed in the disks,

and meansfor revolving said gear whereby the numeral disks are revolved.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HART E. DELVIN. Witnesses i lvanmm E. 'WiLLIs, AUous'rA 1W inss.

ement except when re setting 'sid' and a rack and pinion mechanism or I 'operiflnt g said plate

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