US335312A - Speed and time recorder - Google Patents

Description

(No Model.)

0. H. SGHARAR.

SPEED AND TIME RECORDER.

UNITED STATES PATENT (Enrica.

CHRlSTIAN H. SCHARAR, OF SORANTON, PENNSYLVAYIA.

SPEED AND TiME RECGRDER.

Application filed October (3, 1895.

To all 1071,0722, it may concern:

Be it known that LCHRISTTAN H. SCHARAR, a citizen ofthe United States, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in Speed and Time Recorders, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to an improvement in a combined speed and time recorder.

The proper ventilation of mines is a matter of such importance that the law requires that there should be some means of recording the speed of the fan or the fan-driving engine, in order that the engineer or person in charge of the fan-driving engine may not, either through carelessness or negligence, allow the gases to accumulate in the mines, and thereby endanger the lives of the miners.

The object of my present invention is to provide a simple, effective, and economical recording device which shall show at the same time the speed at which the fan or engine has been run, and also the length of time it has been run.

With these ends in view my invention consists in certain features of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in side elevation of the recording mechanism in connection with a governor, and Fig. 2 is a top plan view of the flexible belt which shows the record.

A represents a suitable supporting frame or casing provided with an upright post or partition, a. A bent bracketarm, B, is secured to the upright a, as shown, the arm and the upright being provided with horizontal bearings I), in which the rod G is allowed a limited longitudinally-sliding movement. A sleeve, D, is loosely mounted on the portion of the rod 0 which extends beyond the end of the bracketarm, the end of the sleeve adjacent to the end of the arm 13 being provided with a band-pulley, 1 and the outer end with a pair ofdiametrically-opposite branches, d, to the ends ot' which the angle-levers e are pivotall y secured. The approaching ends of the levers e engage the sides of an annular groove, F, at the end of the rod 0, and the opposite ends :EECIFICATION forming part of Letters Patent No. 835,312, dated February 2, 1856,

Serial No. 1711132. (Yo mmh-l.)

are each provided with a ballweight, f. The groove h may be formed by a pair of collars secured on the rod (J at the proper distance apart, or it may be formed by plowing out a portion of the rod. The opposite end of the rod 0 projects a short distance beyond the upright a and rests in contact with the weighted end G of an angle-lever, G g. The lever, being provided with the weighted arm, is thereby caused to automatically return to its normal position when thepressure of the rod (l against the same is removed. The said lever G is fulcrumcd in a suitable bearing, 71 secured to a supportingbracket, H, and its arm 9 preferably extends at right angles to the weighted arm G. A vertical rod, 1, is secured to the end of the arm 1/ by a loose joint, and has an easy sliding movement in the sleeve-guide 1', formed integral with or secured to the end of the bracket-arm K. The lower end of the rod I is provided with a horizontal socket, 711, in which the pencil L fits. A spiral spring, Z, inserted within the socketbetwcen theheadot' the pencil and the end of the socket, forces the pencil outwardly into constant contact with the recording sheet. A11 upright spool or drum, M, adapted to be rotated by an ordinary system olclock-work, (not shown,) is located within reach 01' the point of the pencil L. A corresponding spool or drum, N, is loosely mounted on a spindle, a, at a convenient distance from the spool M. 0n the spools M and N is mounted a strip of paper or other flexible material, 0, provided with a series of parallel lines, 0, running lengthwise ofthestrip, and a series of pa rallel transverse lines. p. The latter are located at such a distance apart that a determined interval o'l'time, preferably one hour, shall elapse between the passage of two successivelines past thepoint of the pencil.

The operatioinwhich will be readily understood from the foregoing description, isbrieiiy as follows: The revolutions ofthe engincshatt or fan are communicated to the pulley E by means of a suitable band, and as the sleeve D revolves the balls f separate, thereby forcing the PM ti against the arm G of the lever G g, and hence elevating the pencil. The more rapid the revolutions thehigher will the pencil markon the strip 0, its height being conveniently read by means of the number of the horizontal line which it reaches. Thus, by

knowing the height at which it should stand to give the fan the proper number of revolutions, the engineer is enabled to put on or shut off steam to keep it at the predetermined 5 height, while the pencil-mark will tell the tale of his diligence. Again, since the time is known between the passage of two successive transverse lines, ,it can be seen at a glance how many hours the fan has been run, and hence IO whether it has been allowed to stop for any length of time.

It is evident that governors of various constructions other than that shown and described might be employed to operate the lever G g,

r 5 andthat many slight changes might be resorted to in the form and arrangement of the several parts Without departing from the spirit and scope of my invention. It is also evident that my device can be used in connection with engines of various constructions; hence Ido not wish to limit myself strictly to the construction herein set forth; but,

Having'fully described my invention,what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with the angle-leverG 9, provided with the weighted arm,-as shown, a reciprocating rod,O, and means for operating the same, and a pencil attached to the outer 0 end of the lever, of a recording-blank in contact with the point of the pencil, substantially as described.

2. The combination, with the reciprocating rod 0, actuated by means of a governor, and the angle-lever G 9, provided with a weighted 3 5 arm, and pivoted in bracket H and adapted to be rocked by means of the rod 0, of the sliding rod I, loosely secured to one arm of the rocking lever, and the pencilL, secured in the outer end of the sliding rod I,substantially as 40 set forth.

3. The combination, with the recordingblank 0, provided with the speed-lines o and the time-lines p, and adapted to be moved at a uniform rate of speed, of the pencil L, se- 5 cured in the outer end of the sliding rod land held in constant contact therewith, and adapted to be moved transversely to the movement of the recording-blank by the governor connected with the engine or fan Whose speed is to be indicated, and the weighted lever G 9, whereby when pressure is removed the pencil will automatically return to its normal position, substantially as shown.

In testimony whereof I affix my signature 5 in presence of two witnesses. v

CHRISTIAN H. SCHARAR.

Vitnesses:

W. S. PARSONS, J AMES M. BUTTER.

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