US820352A - Dividers. - Google Patents

Description

PATENTED MAY 8, 1906.

H. DUNDAS. DIVIDBRS.

APPLICATION FILED JULY 8, 1906.

wyundmls UNITED STATES PATENT OFFICE.

HARRY DUNDAS, OF OIL CITY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO S. O. ALLERBAOH, OF OIL CITY, PENNSYLVANIA.

DIVIDERS.

Specification of Letters Patent.

Patented May 8, 1906.

To all whom it may concern.-

Be it known that I, HARRY DUNDAS, a citizen of the United States of America, residing at Oil City, in the county of Venango and State of Pennsylvania, have invented certain new and useful Improvements in Dividers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in dividers; and the ob ject of the invention is to provide a pair of dividers particularly adapted for use by bookfinishers, layers-out, and rulers and such persons connected with book-binding or jobprinting.

Another object of the invention is to provide a tool of the above-described character which will facilitate the work of persons engaged in book-binding, also draftsmen.

Another object of the invention is to provide a tool of the above-described character which will be extremely simple in construction, strong and durable, comparatively inexpensive to manufacture, and highly efficient for the purposes for which it is intended.

With the above and other objects in view the invention consists in the novel construc tion, combination, and arrangement of parts, which will be hereinafter more fully described and then specifically pointed out in the claims, and, referring to the drawings accompanying this application, like numerals of reference designate corresponding parts throughout the several views, in which Figure 1 is a plan view of my improved dividers. Fig. 2 is an edge view of the same. Fig. 3 is an enlarged detail sectional View of the dividers, and Fig. 4 is a plan view of the dividers in a closed position.

As heretofore stated, my improved dividers are particularly adapted for bookbinders and finishers, and in this art a tool or instrument is used for lifting gold-leaf to be applied to the binding of a book, this instrument being technically known as pallets. The dividers are also used for measuring off various spaces upon the binding of a book, especially when an ornamental cover or binding is being placed upon a book. The primary object of my invention is to provide a tool wherein a finisher can use two pallets for his type and putting on the gold and at the same operation mark off spaces with the dividers for the next application of gold.

To put my invention into practice, I construct a pair of dividers of two legs 1 and 2, which are tapering in form and are pivotally connected together by a conventional form of rivet or screw 3. This construction conforms to the ordinary type of dividers commonly used by bookbinders and draftsmen, and my invention resides in providing each leg with an additional auxiliary leg 4. These additional or auxiliary legs are adjustably secured to the legs 1 and 2 by providing each auxiliary leg with an elongated slot 5, through which passes a set-screw 6, that engages in a screw-threaded aperture 7, formed in the legs 1 and 2.

. The auxiliary legs are substantially the same shape as the main legs 1 and 2, with the exception that they are constructed upon a smaller scale, whereby when it is desired to use the instrument or tool as a divider the auxiliary legs can be locked in engagement with the main legs, whereby they will aline or coincide with said legs and not interfere with the general operation of the same.

By referring to Fig. 3 of the drawings it will be observed that the set-screws 6 extend outwardly from opposite sides of the instru ment when the latter is in a closed position, consequently not interfering with the move ment of the legs when it is desired to close the instrument.

en my improved instrument is employed by draftsmen, it can be readily used for dividing a line or space into four equal parts by setting the points of the legs'an equal distance apart. When my improved instrument is used as an ordinary pair of dividers is commonly used by draftsmen, the main legs can be lengthened by the auxiliary legs.

It is thought from the foregoing that the construction, operation, and advantages of the herein-described dividers will be apparent without further description, and various changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit of the invention or sacrificing any of the advantages thereof.

What I claim, and desire to secure by Letters Patent, is-

1. A pair of dividers consisting of main said main legs, said auxiliary legs being adjustable longitudinally upon said main legs, and movable in substantially the plane of movement of said main legs, and means for fixing the auxiliary legs at adjusted positions.

In testimony whereof I affix my signature in the presence oftwo Witnesses.

HARRY DUNDAS. Witnesses:

FRANK M. BYERS, GEO. W. MORGAN.

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