US836006A - Adjustable fence for saws. - Google Patents

Description

No. 836,006. PATENTBD NOV. 13, 1906.

T. BEMIS.

ADJUSTABLE FENCE FOR SAW S. APPLICATION-FILED mm: s. 1906'.

Altm ney 'THE NcRRIs PETERS co., wAsumcToN, r v c.

THOMAS BEMIS, OF INDIANAPOLIS, INDIANA.

ADJUSTABLE FENCE FOR SAWS.

Specification of Letters Patent.

Patented Nov. 13, 1906.

Application filed Tune 8, 1906. Serial No. 320,888.

To all whom it may concern.-

Be it known that I, THOMAS BEMIS, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Adjustable Fences for Saws, &c., of which the following is a specification.

My said invention consists in an improved construction of gages for measuring distances which may be used as an adjustable v fence for saws or for other purposes for which it may be found suitable, all as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings, which are made a part hereof and on which similar reference characters indicate similar parts, Figure 1 is a top or plan view of a saw-table having one of my improved gages mounted thereon to be used as a fence, the same being illustrated as a modification of the structure shown in my Patent N o. 816 ,424 of March 27, 1906 Fig. 2, a cross-section on the dotted line 2 2 in Fig. 1, and Fig. 3 a detail perspective.

In said drawings the portions marked A represent the saw-table, B, the frame of the gage C, the gage-bar, and D the positionfinding device.

The saw-table is or may be of any approved construction, preferably having a frame A set into its surface having sockets a. Said table and the frame B, as shown, are of substantially the construction and arrange- 1nent illustrated in my above-mentioned Letters Patent, said frame B being provided with lugs b 6, adapted to engage with said sockets a, and thus secure it in position on the sawtable.

The gage-bar C is arranged parallel with the side of the saw S and is provided with a shank C, which extends at right angles therewith, and is mounted to slide in a way formed between flanges on the upper side of the frame B. A series of holes 0 are formed in the shank C, arranged a unit distance, as one inch, apart.

The distance-finding device D comprises a cylinder formed with its forward end open and with a head in its opposite end journaled upon a horizontal stud-shaft d, mounted, preferably, in the center of a yoke D, which is preferably secured centrally on the top of frame B by means of screws d. Said yoke serves also to prevent the shankC of.the gage C from being accidentally lifted out of the way in which it is mounted to slide. Said cylinder D, as shown, is provided with a series of sixteen perforations arranged at graduated distances from a given point in a spiral direction around its circumference. While round holes are shown, it will be understood, of-course, that any operative form may be used. The first perforation is numbered 0 and the last 1, and the spacebetween 0 and 1 in a longitudinal direction is one inch, indicating that the longitudinal distancebetween the centers of any two adjacent holes is one-sixteenth of an inch. An indicator D is mounted upon the shaft d and points downwardly. A pin d is adapted to be inserted through one of the perforations in the cylinder D and engage with one of perforations c in the shank C of the gage.

In operation the gage-bar C may be fixed any number of inches from the saw S or any other desired point by inserting the pin d through the perforation 0 in cylinder D and into engagement with, that hole 0 in shank C, which will measure the number of inches desired. It being desired to vary the distance a fractional part of an inch the pin is removed from perforation O and the cylinder D turned until the indicator D registers with the perforation indicating that fraction of an inch which is desired, when the pin (1 is inserted and the shank C slid in its bearings until the perforation which was engaged by the pin again comes to position to be engaged thereby, when said pin is slid 'into said perforation and the parts locked in the desired adjustment.

It will be understood, of course, that modifications such as would result from a reversal of parts may be substituted without departing from my said invention.

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

1. A gage comprising a base or frame, a gage-bar mounted to slide transversely on said frame and having a shank with a row of perforations, a hollow cylinder having a diagonally-arranged series of perforations rotatably mounted over said shank, and a locking-pin interchangeably engaging a hole in both the cylinder and said shank, substantially as set forth.

2. In a gage, the combination of the base or frame, a sliding part carrying the gage-bar mounted on said base or frame and having a row of perforations to adjust the gage, a hol- IIO low cylinder formed with one end open and the other end closed, the closed end being journaled on a suitable bearing above said sliding part, said cylinder having a diago-.

IO shank with a row of perforations and slidably mounted to adjust the gage, a hollow cylinden-haying a diagonally-arranged ser es of perforations rotatably mounted over said shank, and a locking-pin interchangeably engaging a hole in both the cylinder and said I 5 shank, substantially as set forth.

In witness whereof I have hereunto set my hand and seal, at New York, N. Y., this 2d day of June, A. D. 1906.

THOMAS BEMIS. [L. s.]

Witnesses:

WILLIAM H. KOEHLER, JOHN B. PARKER.

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