US443314A - Thavek - Google Patents

Description

(No Model.)

0. E. BRUNTHAVER. INDICATOR.

No. 443,814. Patented Dec. 26 1890.

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UNITED STATES PATENT .OFFICE.

CHARLES E.'BRUNTHAVER, OF \VASHINGTON, DISTRICT OF COLUMBIA.

INDICATOR.

SPECIFICATION forming part of Letters Patent No. 443,314, dated December 23, 1890.

Application filed March 20, 1890.

To all whom it may concern.-

Be it, known that 1, CHARLES E. BRUN- THAVER, a citizen of the United States, residing at Washington, in'the District of Col umbia, have invented certain new and useful Improvements in Indicators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates in general to that class of instruments of precision termed indicators, and particularly to that class of indicators which are adapted to show by successive steps a series of objects, such as the names of stations ona railroad or of streetcrossings on a street-ear line, or to show a series of parts occurring in the same object, such as the lines of a proof-sheet or of copy, or such as the names of periods of time on a calendar, (he. and the object of the invention is, first, to provide means for exhibiting at once any desired portion of a sheet of paper orsimilarflexible material; second, to provide means for advancing the said paper the required distance, whatever that maybe, at each step, and, third, to provide means for operating upon or using copy-sheets of varying lengths or calendars or railway-lists of any length, or even in belt form on the same instrument.

To this end my invention consists in the construction and combination of parts forming an indicator, hereinafter described and claimed, reference being had to the accompanying drawings, in which Figure I is a front view,-Fig. II is an end View, and Fig. III is a longitudinal vertical section, of a form of my indicator adapted to exhibit copy for proof-reading or for typewriters, copyists, or any similar use. Fig. 1V represents a transverse vertical section of a modification of my indicator adapted for indicating the names of stations or streets or the periods of time on a calendar or any similar device, wherein a continuous series of events is likely to be repeated in a cycle or belt. Fig. V represents a transverse vertical section at X of either the feed or detent drum.

6 represents a frame of any suitable material-such, for example, as sheet-brass provided with two posts 7 at each end, form- Serial No. 344,622. (No model.)

ing open bearings, in which two rollers 8 9 are journaled, one to rest or roll upon the other.

' 10 11 are gear-wheels fixed upon the rollers 8 9, respectively, and engaging each other to insure both rollers turning together with cer tainty.

12 represents a ratchet-wheel fixed upon the shaft 13 of the roller 9.

14 is a drum provided with a hub 15, fitted to revolve freely upon the shaft 13 outside of the ratchet-wheel 12, the drum incasing the said wheel.

16 17 18 19 arespring-pawls secured within the drum 1%, and 'adapted at their free ends to engage the teeth of the ratchet 12. The pawl 16 has just sprung over a tooth, the pawl 17 rests upon one-quarterof a tooth, the pawl 18 rests twice as far on another, and the pawl 19 rests three times as far on yet another tooth. There may be any desired number of pawls thus graduated, so that however little or much the drum may be moved some pawl may be ready to engage a tooth.

38 represents a drum, inside of which there are a ratchet-wheel and pawls exactly corresponding to the wheel 14 and pawls 16 17 18 19; but the drum 38 is fixed to the frame 6, so that its pawls serve as detents to prevent the roller being revolved backward by the return action of the aforesaid pawls.

Fig. Vrepresents either drum let or 38 with its contents.

20 is a spacing or operating key pivoted to theframe at 21 and provided with two arms 22 23, to which acord 24 is attached. This cord :is wound around the hub 15, whereby any movement of the key 20 will be transmitted to the drum 14 to rotate it and with it the ratchet wheel and rollers. A stop 25 fixed to the frame, limits the upward move-.

.31, through which binding-screws 30 pass into the frame 6 to bind the shield in anyposition to which it has been adjusted. 32 is another shield, also fixed to the frame by means of ICO screws 33. This shield might also be slotted similarly to shield 29 to suit some situations.

34: represents a sheet of paper passing between the rollers and behind the shields with a line at 39 exposed to View. By means of the adjustable shield 29 one or more lines of space on the copy may be exposed at once, and the view may be adjusted to lines of different widths, and by means of the adjusting-screw 26 the key 20 may be permitted to move so far as to rotate the rollers 8 9 far enough to feed the paper to correspond with the said view or opening between the shields, and the various pawls 16 17 18 1S) enable the key to operate with the greatest exactness, so that the ruling of any paper or the spacing of lines maybe matched. \Vere it not for this means of accurate adjustment any slight variation between the spacings and the lines would cause the lines to gradually creep behind the shield. The paper may be of any length.

35 represents springs adapted to bear on the shaftof the upper roller or to press it upon the paper in case the weight of the roll is notsutficient to draw the paper through.

Fig. IV-shows the manner in which a long belt of paper would be folded by the machine in a small box adapted for car indicators or calendars.

The shield in adjustable parts accomplishes anyfirst object, the ratchet-wheels and the series of pawls with graduated lengths accomplish the second, and the feed-rollers geared one above the other, with the connected parts described, accomplish the third.

Having thus fully described my invention, what I believe to be new, and desire to secure by Letters Patent, is the following:

1. The combination, in indicators, of. a roller journaled in a frame, a second roller journaled freely in its bearings to rest upon the first roller, springs fitted to bear upon the journals of the second roller, gear-wheels upon the two rollers adapted to engage each other, and two shields in front of the rollers having an open space between them, substantially as shown and described.

2 The combination,inindicators, of afeedroller having a ratchet-wheel fixed to it, a drum surrounding the ratchet-wheel and having a hub freely journaled on the shaft there of, a series of spring-pawls fixed in the drum to engage the teeth of the ratchet-wheel, a key-lcver having two arms and pivoted to the frame, and a cord wound upon the said hub and connected with the two arms, substantiall y as shown and described.

3. The combination of a feed-roller having a ratchet-wheel fixed to it, a key-lever pivoted to the frame, means connecting the lever with the ratchet-wheel, whereby movements of the lever will revolve the wheel, stops to limit the motion of the lever, one of the said stops being adjustable, substantially as shown and described.

4. The combination, in indicators, of a frame, rollers jonrnaled therein, and two shields in front of the rollers, one of the said shields being adjustable, substantially as shown and described.

5. The combination, in indicators, of a feedroller having a ratehetavheel fixed to it, a drum surrounding the roller, and a series of spring-pawls secured to the drum and located around the ratchet to engage the teeth at short intervals apart, substantially as shown and described, whereby the movements of the ratchet-wheel maybe graded to spaces shorter than spaces between teeth, as set forth.

6. The combination,in indicators,of a feedroller having two ratchet-wheels upon it, the teeth of both facing in the same direction around the wheels, a drum around one ratchet-wheel mounted on a shaft to revolve therewith,another drum around the other ratchetwheel fixed not to revolve, and a series of spring-pawls fixed in each of the drums, so located as to engage the teeth of the ratchets in successive order, substantially as-shown and described, whereby the amount of rotation of the ratchets byone drum maybe regulated tospaces shorter than the spaces between teeth and whereby the retention of the ratchets at any stopping-place is secured.

In testimony whereof I afiix my signature in presence of two witnesses.

Witnesses:

P. E. S'rEvENs, W. X. STEVENS.

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