US106701A - leilioh - Google Patents

Description

P. T. LEILIOH.

ADDING MACHINE.

No. 106,701. Patented Aug. 23, 1870 dlnitrd slam @H Will FRANK '1. LELLICH. O F FREDERICK, MARYLAND, ASSIGNOR TO HIMSELF AND MIOHAL LEILIOH, OF SAME PLACE.

Letters Patent No. 106,701, dated August 23,1870.

IMPROVEMENT II ADDING-MACHINES.

The Schedule referred to in than Letters Patent and ranking part of the lame.

Z'u all whom it may concern:

llc it known that FRANK T. Lsrmcu, of Frederick, in the county of Frederick and State of Maryland have -invented certain -Improvements in vAdding-Machines; mid I, do hereby declare thstt-he following is a full, clear, and exact, description there-oi, reference being bad to the annexed drawing making part of this specification, in which- Figure -1 is a. plan view of my improved rrrachirre complete.

Figure 2 is a plan view with the numbered rims and dial-plate removed to show the carrying nrecharrism. Figure 3 isa plan view, thediai-plate being removed to show the construction and arrangement of the numbered rims.

Figure 4 is a central vertical section.

I The same letters are used in all the figures to indicute identical parts.

This invention relates to a machine for adding up one, two, three, four, or more columns of figures; and

My improvements consist in the construction, combination, and arrangement of various parts thereof, as

ln'the present instance, a metallic plate, a, is secured in its upper surliwe across the center, in which to form a suitable support for the center-pin A.

, The units and tens wlreci B is arranged upon the center-pin in such a manner that it may require the application of some little force to turn it thereon. It is a circular plate with the numbers 0 0 to 9 ilengraved or stamped uponit near its edge, increasing from left to right, and arranged at regular distanccsapart.

Opposite tceach rrrurrber a pin-hole, b,.is bored in the disk, asshown. Directly under the figures 9 9 a short stud, B, is secured in the under surface of this disk, which, during every cut-ire revolution thereof,

comes once in' contact with a projection on the lever E, and carries the latter forward or enough to cause its pawl to move the hundrcdsaud thousands rim i'orwardone number.

0 is an annular rim or ring arranged upon the base plate around the disk or wheel B, and may be held in position by threeor rrrore pins set around its inner periphery, or an ann'uhrr ridgeon the base-plate, or both, as'shown. It is, near its inner periphery,numbered and provided with pin-holes, 0', like the disk B, and has a projection, 0-, upon its under side for acting, by means of an intermediate lever/and pawl, uponthe ten thousands and hundred thousands rim. Its outer periphcry has one hundred ratchet-teeth pointing from rightto left, onc'being opposite each number and pin-hole.

The pawl 0*, arranged upon a metallic plate in the recess in the base-plate, engages with every ratchettooth in succession as the rim is revolved from left to right, and prevents it from turning in the opposite direction, a spring, 0, being enrployed hi the usual manner to hold the pawl to its work.

I) is the ten thousands and hundred thousands rim, arranged upon the base-plate around and in the same manner as the rim (J, to which it is in all respects similar, except that it is larger, and that, it being the outermost rim in this instance, the stud upon its rurder side is omitted, and instead of the number 0 0 the number 100 is stamped u n it. A pawl, D, with actuating spring D, serves hold this rim in position.

E is a bar or lever pivoted at its iunerend at 0 upon the metallic plate which covers the recess in the baseplate, shown in fig. 2. It is arranged to lie under the disk and ring, and extends from its pivotal point outward some distance beyond the ratchet periphery of the rim 0. Near its outer end a pawl, E, is pivoted upon it, said pawl being throwuinto the recesses betwcenthe ratchet-teeth of the rim 0 by a spring; E.

Another and stronger spring, E", acts upon the lever itself, causing it to abut against a stop, (I, when not acted upon by the stud of disk B.

A projection, E, is formed upon the upper surface of the lever, which is so constructed and arranged with reference to the stud B that, on the latter corning in contact with the former in revolving the disk B, it shall oscillate the lever suiiiciently to cause its pawl E to move the-rim 0 forward one number, and then release the projection upon which the spring E will return the lever to its original position. Another stop, a, may he used to control the movement of the lever, so that on its projection being struck, the force of the concussion may not turn it too far.

A similar lever, F, with pawl F, springs F and F, projection F, and stops is used for operating through the stud 0' upon the rim 1).

It will be observed that the independent pawls C and D are necessary in order that the pawls E and ii may not carry the rims back with them when the levers to which they are attached are returned.

G represents the dial-plate, which is an annular rim oi suificient width to cover the rim D and a portion of the rim 0, as shown, upon which it is superimposed, and then screwed to the bed-plate. It is numbered from 00 to 92), from right to left. Opposite the number 50 square openings G and G are cut in it large enough to expose each, respectively, one number on the under-lying rims 1) and U, and a sectoral slot, G, running from its number 00 to 25, or further, exposes a number of the pin-holes in the rim D.

H is a bar, pivoted upon the center-pin, and extending acrossthe disk B. One end of it terminates near the pin-holes in' such disk, and has asquure opening, Hi, cut in it to expose a number thereon. Its other end extends to just beyond the pin-holes in rim 0, and serves as a stop. A short stop, 7:, secured in posit-ion 'is such that every timeit stops the move-- ment'ot' the pin by which the disk and rim may be revolved, such pin is direetlyopposite the number 00 on p the dial-plates: It wili be seen that this arrangement also brings its'opening Hin the same radial line with the openings G and G in the dial-plate. To addup a column of figures the disks are first setsothat the numbers exposed in the qlwuiugs G- G and H correspond with the first or upper row of figures. The next row is added by-puttiug a: pin in-the' plate B opposite the number on the dial-plate, which eorrespondswith the units and tens of the ro\v, and turnini, the disk until the. pin comes in 'eontactwith the bar H. it is then withdrawn and inserted in the rim 0 opposite the number'on' the dial-plate which corresponds with the hundreds and thousands 'of the row'to be adderhand said rlm'isturned like disk B. The ten thousands and hundred thousands'of the row ate added by using the pin for turning therim D in the same manner-as rim 0. it the sectoral slot in the dial-plate does not extend to as high a figure as is to be added, the rim is m'ored'twiee, or oltener, until it hasbeen forward the required number of divisions.

The result, after all the succeeding rows of figures have been added inthe same manuen'cnn then be read oif in the openings G, G, and H. Every time each inner wheel or rinr counts-up one hundred, lt mores its next outer rim one number forward, and

' thus carries. the bed-plate, holds itin position at this end, which This particular maehine enables the operator to count-up six columns of figures, but by multiplying the rims its'capaeit-y may be-inereused indefinltely.-

Having thus described my invention,

-\Vhat I claim, and desire to secure by Letters Patout, is---- 1. The combination of the stationarylmr H, disk and ratehet-rims B '01), revolving independently of each other aud stationary dial plateG, all armnged and operating substantially in the'mauner set forth.

'2. The combination of the stud .B, lever ,hf with projection E, pawl E, and spring E, substantially and for the purpose set forth.

3. The arrangement of the stationary bar H H upon the disk B, with reference tothe openingsG and G in the dialrplate, substantially as and for. the .purp'ose set forth.

lip-testimony whereof I have signed my name to this specification in the presence ot two subscribing

Images