US813681A - Combined tachometer and cyclometer. - Google Patents

Description

PATENTED FEB. 27, 1906.

C. H. WARNER. COMBINED TACHOMETER AND GYGLOMETER.

APPLICATION TILED BEPT.6, 1904. v

2 SHBETSSHEET 1.

2 SHEETS-SHEET 2.

PATENTED FEB. 27 1906..

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C. H. WARNER. COMBINED TAGHOMETER AND CYGLOMETBR.

APPLICATION FILED SEPT.6. 1904.

UNITED STATES PATENT OFFICE.

CHARLES H. WARNER, OF BELOIT. WISCONSIN. COMBINED TACHOMETER AND OYCLOMETER.

Specification of Letters Patent.

Patented Feb. 27, 1906.

Application filed September 6, 1904. Serial No. 223,342.

To all whom it may concern:

Be it known that-I, CHARLES H. WARNER, acitizen of the United States, residing at Beloit, in the county of Rock and State of Wisconsin, have invented a new and useful Combined Tachometer andCyclometer, of which the following is a s ecification.

This invention re ates to combined tachometers and cyclometers.

The object of the invention is to rovide a device which is simple and eflicient or simultaneously measurin V the speed rate and number of rotations of s afts.

A further object of the invention is to provide in a single structure or device means whereby the speed of rotation of a shaft, as

' well as the number of revolutions made thereby within a given time, may be simultaneously measured, recorded, and indicated at a glance.

Other objects of the invention will appea more fully hereinafter.

The invention consists substantially in the construction, combination, location, and relative arrangement of arts, all as will be more fully hereinafter set orth, as shown in the accomp anying drawings, and finallypointed out in the appended claims.

Referring to the accompanying drawings, and to the various views and reference-signs a pearing thereon, Figure 1 is a view in top plan of a combined tachometer and cyclometer embodying the principles of my invention. Fig. 2 is a view in side elevation of the same. Fig. 3 is an end view. Fig. 4 is a view in central longitudinal section on the line 4 4, Fig. 1, looking in the direction of the arrows. Fi 5 is a view in transverse section on thehne 5 5, Fig. 4, looking in the dircction of the arrows. Fig. 6 is a detail view in section on the line 6 6, Fig. 4, looking in the direction of the arrows. Fig. 7 is a 'detached detail view of the cyclometer, the supporting-clamp therefor being shown in section. Fig. 8 is a view similar to Fig. 3 with the end cap removed. Fig. 9 is a broken detail view in section, showing a modified form of gearing for actuating the cyclometer and embracedzwithin the spirit and scope of my invention. n; .1:

.The same .p'arinis designated by the same reference-sign wherever it occurs throughout the several views.

In Patent No. 745,468, issued December 1,

1903, to A. P. and C. H. Warner, is shown, described, and claimed a magnetic tachometer for measuring and indicatmg the speed of rotation of shafts, and wherein is employed a magnet and a magnetic mass, one of these parts adapted to be connected to rotate with the shaft the speed of which is to be measured, and a graduated disk is interposed be tween the magnet and mass and is j ournaled to freely rotate under the influence of'the magnetic field created by the relative rotation of the magnet and magnetic mass, being yieldingly restrained from such free rotation by a spring. The present invention cornj l bmes wlth an instrument of this nature a cy- 1 Y clometer, whereb not only the speed of -ro tation of the sha t may be measured and indicated at a glance, but also and simultaneously therewith the number of rotations which bearing-block is journalod to rotate,

preferably on ball-bearings, a sleeve 1), to which is connected the instrument-shaft E. The shaft E is designed to be connected in any suitable or convenient manner with a. shaft F, the rotations of which are to be measured, indicated, and recorded. As above indicated, any suitable or convenient form of connection between the instrument-shaft E and the shaft F may be employcli. I have shown a form of connection which I have found in ractice to well answer the purpose,

but to w oh my invention is not to be limited or restricted, wherein the instrumentshaft E is rovided with a flexible portion G, which is o the usual form of flexible shafts and which, if desired, may be inclosed in a flexible tubing or covering H. The portion G of the instrument-shaft terminates 1n a nib J for attachment to the shaft F, as clearlyshown in Fig. 2.

From the foregoing it will be seen that when shaft F is rotated the rotations thereof are transmitted to the rotating part D of the instrument and which is journaled, as above described, in the bearing-block C. Suitably 5.

supported on to rotate with the rotating part D is a circular or ring-shaped magnet K" .inclosed within casing A, and stationaril" mounted within casing A is a cooperating magnetic mass L. A disk M, journaled to freely rotate within casing A and interposed between the relatively rotating magnet K and magnetic mass L, is provided with an annular flange N, suitably graduated, the graduations thereon being disclosed through an opening in the side of casing A, a stationary pointer O cooperating therewith, as indicatedin the drawings. The rotation of disk M may be yieldin ly opposed in any convenient manneras, for instance, by a spring R.

Suitably mounted upon the hub B is a sleeve or drum P, through which the instrumentshaft E extends. This sleeve or drum is formed or provided with a flange S. A casting A is secured at one end by a bolt B or otherwise to casing A and at its other end by a bolt C or otherwise to the flange S. A bracket D is connected pivotally or otherwise, as indicated at E, to casting A to afford means for attaching the instrument in convenient position with reference to the shaft the rotations of which are to be measured, recorded, and indicated. I do not desire, however, to be limited in respect of these details of construction for mounting and supporting the instrument, as the same may be altered and varied throughout a wide range without departure from the spirit and scope of my invention.

The casting A is provided with a split portion forming spring-jaws F G, in which are fromed dovetailed seats H J to receive the cooperatingly-shaped shank K of the casing L of the cyclometer. This cyclometer may be of the usual or any well-known type and construction. I have found in practice that a cyclometer of the well-known Veeder type is well adapted to my purposes and em bodies two sets of registering wheels, the members of each set forming with themselves, respectively, registers or recorders for units, tens, hundreds, and the like and actuated the one from the other in the ordinary manner. The units-wheels of both sets may berimarily actuated from the instrumentsha t E in any convenient manner. For instance, and in the form shown in Figs. 4, 6, and 7, the cyclometer is provided with a starwheel M, with which engages an arm N, mounted upon to rotate with the instrumentshaft E. As shown, this arm forms the end of a spring 0, coiled upon a hub P, carried by shaft E and arranged within sleeve or drum P.

In Fig. 9 I have shown another arrangement for operating the cyclometer registerwheels, winch arrangement I prefer to employ, and wherein the shaft A of the instrument is provided with a worm-gear B, with which meshes a worm-gear C carried upon the shaft of the cyclometer.

The operation of the device will be readily understood from the foregoing description and is as follows: Rotation being imparted to the instrument-shaft, the speed of such rotations is measured b the tachometer, while the number of revo utions made by such shaft are registered by the cyclometer, the tachometer being operated by the magnetic action of the relatively rotating magnet and magnetic field, which relative rotation is effected by the rotations of the instrument-- shaft, while the cyclometer is operated by the arm N periodically engaging the arms of the star-wheel M, in the one case, or by the intermeshing worm-gears B C, inithenother case, and in either case the rotations beingimparted from the instrument-shaft,- .thereby -en abling the speed of rotation of such shaft to be measured and simultaneously therewith the number of such rotations to be recorded. and such measurements and registers to be indicated at a glance.

A device embodying myinvention, while well adapted for use in measuring, register ing, and indicating. the rotations. of shafts generally, is speciallyuseful inconnection with automobiles, enabling, the driver or chauffeur to see at a glance not' only how'fasthe is traveling, but also how far; he has-gone on a trip, and how far he hastraveled during; the season or within a given-space of-time;

It is obvious that changes and-variationsv 5 may be readily made in the details of .construction and arrangement-ofthetachometer, as well as of the cyclometer, and stillifalle within the spirit and scopeof my-invention, which resides more particularly in the broad combination of these elements and their con-. joint and cooperative relation in effecting the objects and purposes had in view.

Having now set forth the object and natureof my invention and a construction embody ing the principles thereof, what I claim as new and useful and ofmy own invention, and desire to secure by Letters Patent, is-

1. The combination with: a shaft and means for rotating the same,-of a tachometer. no having a hub, a sleeve connected tosaid hub and a cyclometer, and means actuated by the-- rotations of said shaft for operatingsaidtacho meter and cylometer, the cyclometeraetu-. ating means being inclosed within saidsleeve: I r 5 2. The combination with a casing.;:and .a sleeve ordrurn carried thereby, a-rnagnetic tachometer arranged Within said casing, .a: cyclometer supported respectively, by-said casing and sleeve or drum, a shaft extending-qr 2a through said drumv or sleeve, and :means op'-- erated by the rotations of said shaft for .actue ating both said tachometer and said cyclom eter, the cyclometer-operating: means being: arranged within said sleeve or drum. 125

3. The combination with a magnetic .tacheometer having a rotating .part,.an inclosing casing therefor, a sleeve carried by.said-.cas-- ing, a casting connected at one end to said casing and at the-otheraend to said sleeve, a 13o cyclometer supported by said casting, a shaft extending through said sleeve and connected to the rotating part of said tachometer, connections between said shaft and cyclometer for actuating the latter, closed within said sleeve tating said shaft.

said connections inand means for ro- HARLES H. WARNER.

Witnesses:

CLAYTON E. UDELL, MARY C. WHELAN.

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