Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS430708 A
Publication typeGrant
Publication dateJun 24, 1890
Filing dateJan 31, 1890
Publication numberUS 430708 A, US 430708A, US-A-430708, US430708 A, US430708A
InventorsPrank Sweet
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mechanical counter
US 430708 A
Previous page
Next page
Description  (OCR text may contain errors)

fu du e h S s t e e h S 2 ml E uuv S nr. u. d 0 M 0 w MECHANICAL COUNTER.

No. 430,708.v Patented June 24, 1890.


wel?? me News uns co., wom-urna., msnmnrou, u, c,

(No Model.) 2 Sheets-Sheet 2.


MECHANICAL COUNTER. No. 430,708. Patented June 24, 1890.

Fly. 4 f@ l E* il l the hundreds.



SPECIFICATION forming part of Letters Patent No. 430,708, dated June 24, 1890.

Application filed January 31, 1390.

To aZZ whom it may concern:

Be it known that l, FRANK SWEET, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a new and useful Counter, of which the following is a description of its construction and operation.

My invention consists, essentially, of a series of two or three wheels or disks,numbered 1 to 100, made to revolve on a common central pivot by a ratchet-lever for the purpose of counting when applied to any suitable machinery.

The following drawings illustrate my invention:

Figure 1 is a plan view of the complete counter. Fig. 2 is a side elevation of the same. Fig. 3 Is an end elevation. Fig. 4 is a rear View of the counter. Fig. 5 is a sectional view through u u, Fig. l.

Similar letters refer to similar parts.

Each disk is numbered, as shown on the plan view, with figures 1 to 100, arranged at regular distances round the lentire disk. The lever b may be operated at either end by a wedge-shaped piece of metal, or its equivalent, or by a cord, wire, or chain, whichever may be preferable, according to the construction or use of the machine to which the counter is applied.

The counter is set for operation by moving the large disk f round on the central pivot s till the two ciphers on the disk fare opposite the latch r, that holds the hammer Z away from the bell lo, and the small disk g moved round till the cipher thereon is in line with the two ciphers of the large disk f, in the position shown on Fig. 1. When the disks are thus arranged, the counter may be set to count any desired number by moving the adjustingarm j round and placing its catch e in the inside hole of the smaller disk g opposite the required number. Thus, if it is desired to count lifteen hundred, place the catch a' of the adj usting-arm j in the inside hole of the smaller disk g opposite 15, as this disk counts lf it is desired to count five hundred and fifty, move the larger disk f round till 50 is opposite the latch r, thus deducting the number less than one hundred. Then move the smaller disk g round till the cipher thereon is opposite 50 on the large Serial No. 339,112. (Nomcdel.)

disk f. Then place the catch z of the adjusting-arm j in the inside hole of the smaller disk g opposite 6. Any other number Inay be counted on the same principle.

The ratchet c is connected with the lever b through the circular slot p in the foundation a. The spring d holds the ratchet c in a notch of the large disk f until the lever b is moved backward inthe guide t, when the ratchet c is disengaged by the governing-pin e, which allows the' ratchet c to drop into another notch ofthe disk f, when the lever b is released. Then by the force of the leverspring n, the lever b and the disk fare moved forward to the next ligure-space, thus registering the count, and so on indefinitely.

When the counter is set for operation, as described, the tigu res in line opposite the latch r will show at any time the number counted. The smaller disk g revolves only once to the larger disk f one hundred times, for the catch y in the end of the latchz' rests in a notch of the smaller disk g and does not allow it to turn until the larger disk f has made a revolution. l/Vhen the raised point 'c on the larger disk fin connection with the point 0c on the under side of the latch z' raises the latch and allows the smaller disk g to be carried forward by the large disk f by pressure of the disk-spring h, which is convex, with its points bearing on the disk f, the distance of one figure-space, thus counting the hundreds on the smaller disk g.

The bell-hammerl is held away from the bell 7c by the latch r until the adj Listing-arm j is moved round by the regular working of the counter and strikes the latch r and disengages it, thus allowing the hammer Z to strike the bell lo by the force of the hammer-spring q, giving notice that the number is counted. The counter may be used without the bell attachment, if desired. n

Vhen the counter is not needed, the lever Inay be held out of adjustment by an eccentric o or other suitable device, allowing the machine to which it is attached to work independent of the counter.

The foundation on which the counter is constructed may be made of wood or metal, and varied in form to suit the form of any machine to whichl it is applied.

For counting up to ten thousand, only two IOO ing-arm j, with the bell-hammer Z, and the bell 7o, all operated by a ratchet-lever b, having the spring In, eccentric o, and ratchet c, with its spring (l and gmferning-pin e, substantially as shown and for the purpose specified.




Cooperative ClassificationG06M1/045