US1083684A - Measuring device. - Google Patents

Description

J. A. IFKOWITSCH.. MBASUBING DEVICE. nrmculon FILED un. 24, 1913.

1,083,684. Patented .1m 6,1914.

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J. A. IFKWITSCH.

MEASURING DEVICE.

APPLIUATION FILED un. 24. 1913.

1,083,684. Patented Jam 6, 1914.

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JoHN A. IEKoWITscH, or cnIcaGo, ILLINOIS.

MEASURING DEVICE.

Specification of Letters Patent.

Patented Jan. 6, 1,914.

Application filed January 24, 1913. Serial No. 743,933.

To all whom it may concern;

Be it known that I', JOHN A. IrIrowrrsoH, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Measuring Devices, of which the following is a specification.

My invention relates to improvements in measuring devices and has for its object the production of a measuring device through the medium of which measurements may be taken with ease and expedition.

A further object is the production of a measuring device which will be durable and economical in construction, easily operated, and'one which will be eiiicient in use.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which,

Figure 1 is a front elevation of a measuring device embodying my invention, Fig. 2 is' a side elevation thereof, Fig. 3 is a view similar to Fig. 1, a portion of the casing being broken away to expose underlying parts, and Fig. 4 is an enlarged section taken on substantially line :v4-,x4 of Fig. 3.

rThe preferred form of construction as illustrated in the drawings comprises a segmental casing 1 which is secured by means of a rivet 1 to a frame member 2. Arranged in the casing 1 is a main disk 3 which is ixed upon a shaft 4 the respective extremities of which are rotatably mounted in the front and rear walls of the casing 1 as well as in the outer extremity of an extension-5 of the member 2. Also arranged in the casing 1 is a disk 6 fixed to a shaft 7 which is rotatably mounted at its respective ends in the rear wall of said casing and the extension 5 as clearly shown in Fig. 4. The periphery of the disr 6 is serrated as shown to form a gear 8 why'ch meshes with a pinion 9 formed at the rear end of the shaft 4, the arrangement being such that when disk 3 is rotated disk 6 will be simultaneously rotated but at a reduced speed.

Rotat-ably mounted upon the shaft 4 is a disk /10 the periphery of which is also serrated to form a gear 11 which meshes with a pinion 12formed at the inner end of the shaft 7. The arrangement is such, as will be observed, that upon rotation of the disk 6 as above mentioned the disk 10 will be simultaneously rotated but ata reduced speed. In other words the arrangement is such that upon rotation of the disk 3 the disks 6 and 10 will be driven thereby but at reduced speeds, the disk 6 being turned through one complete rotation upon twenty turns of the disk 3 and the disk 10 being turned through one complete rotation upon twenty rotations of the disk 6.

The circumference of the disk 3 is preferably one foot or twelve inches, the front side thereof being graduated as shown to indicate inches. Consequently upon each rotation of the disk 3 one foot will be measured, and so that disks 6 and 10 which are graduated to register the number of rotations of said disk 3, also register the number of feet which are measured. The casing 1 is cut away at 13 in order to expose the graduations of the disks 6 and 10 as shown in Fig. 1.

The casing 1 is segmental in form in order to expose aportion of the periphery of the disk 3 for contact with the article to be measured in the manner hereinafter described. A segmental sheath 14 is rockingly mounted upon said casing for covering said exposed portion of disk 3 when the device is not'in use. A spring lip 15 is provided at one extremity of the sheath 14 for engagement with a recess 16 provided upon an extension 17 of the casing 1 in order to releasably lock the sheath 14 in operative or closing posit-ion, the'closing position of the sheath 14 being shown in dotted lines in The outer edge of the extension 17 serves as a stop in'using the device for properly positioning the same at the lcommencement of themeasuring operation, said edge of said stop being disposed in a line tangent with the disk 3 and which extends parallel with the handle of the device hereinafter mentioned. The extremity 18 of the casing,

-when the sheath is in uncovering position ing hingedly connected at l.21 so,as to' permit of the non-folding of the sections 19.

Said sections 19 and 19"together withthe edge 17 of the extension 17 are graduated as shown for use in measuring in the usual manner. lhe edge 17 is disposed at right angles to the adjoining edges of the sections 19 and 19 so that said edges constitute a square which may be used in the ordinary manner.

In using the device the sheath 14 is first rocked back to expose a portion of the peri phery of disk 3, as shown in Fig. 1. The

periphery of the disk 3 is then placed against the surface which it isdesired to measure and the device is'drawn along said surface with the periphery of disk 3 contacting therewith. rlhe measurement of the surface engaged will evidently he measured since upon each rotation of the disk 3 one foot will have been measured, the number of rotations of said disk and hence the number of feet measured being indicated by disks 6 and 10. In the commencement of the measuring the device is positioned with the handle 19 extending perpendicular t0 the surface which it is desired to measure, the stop 18 as Well as theperiphery of the disk 3 heilig in contact With the surface with the handle in this position. '.lhe disk 3 is positioned with the numeral l2 registering with the point of tangency of the disk 3 and the surface engaged at the end of such surface, and thus the friction of a foot or inch will be shown at this point when the extremity of the surface measured is reached.

Where it is desired to measure from an internal corner the disk is turned to the left a distance corresponding to the difference between one fourth the circumference and the radius of disk 3, which in this instance is approximately one and three thirty-sec ond inches. The outer edge of the stop 18 together with the adjacent periphery of the disk are then placed in contact With the surface it is desired to measure, the kperiphery of the disk being pressed into contact with the other surface of the corner. The operation from this point on is the same as before described in the measuring operation.

A measuring device of the construction set forth will be found accurate and through its employment measurements may be taken with ease and expedition. 4

While I have illustrated and described `rying.; my invention into effect, this is capable of variation and modification Without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations vand modifications as come withinpthe scope of the appended claims.

Having described my inventiony what I clailn as new and desire to secure by Letters Patent is:

1. A measuring device comprising a easing; a graduated disk rotatively mounted in said casing and having a portion extending therefrom; and a stop on said casing in a Iline tangent to a point in the periphery of said disk, said stop being adaptedA to facili'- tate positioning the device in operative condition, substantially as described'.

ing; a graduated disk rotativel mounted in said casing and having a portlon extending therefrom; and a stop on said casing in a line tangent to a point in the periphery of said disk, said stop being adapted to facilitate positioning the device in .operative condition when the casing is in one p0- sition; a second sto on said casing in a line tangent to a secon point of the periphery of said disk adapted to facilitate positioning the device in operative condition when said casing is in a second position, substantially as described.

3. A measuring device comprising a graduated disk; a casing in which said disk'is rotatably mounted so as to expose a portion of the periphery of said disk; a handle secured to and projecting from said casing; and stops on said casing disposed one in a line tangent to. said disk extending parallel with said handle and the other disposed in a line tangent. With said disk extending at right angles to said handle, said stops facilitating positioning the device vin operative positions substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

v JOHN A.,IFKOWITSCH. Witnesses:

JOSHUA R. I-I. Po'r'rs, B. G. RICHARDS.

75 2. A measurmg device eomprlsmg a cas--

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