US480902A - Fence for wood-working machines - Google Patents

Description

(No Model.)

G. W. BUGBEE & P. BANNER. FENCE FOR WOOD WORKING MACHINES.

Patented Aug. 16, 1892.

WITNES SE8.

dzmwc mm.

FIG. 5. {1 ml INVE NTORS.

iINITED STATES PATENT OFFICE.

GEORGE W. BUGBEE, OF DELHI, AND FREDERICK DANNER, OF HOME CITY, ASSIGNORS TO THE EGAN COMPANY, OF CINCINNATI, OHIO.

FENCE FOR WOOD-WORKING MACHINES.

SPECIFICATION forming part of Letters Patent No. 480,902, dated August 16, 1892.

Application filed March 26. 1892. Serial No. 426,496. (No model.)

To all whom it may concern:

Be it known that we, GEORGE W. BUGBEE, residing in Delhi, and FREDERICK DANNER, residing in Home City, in the county of 5 Hamilton and State of Ohio, citizens of the United States, have jointly invented a certam new and useful Improvement in Fences for Wood-Working Machines, of which the following is a specification.

Our invention is adapted for use on that class of wood-working machines in which the operating-tools or the supports for the work are adjusted to and fro relatively one to the other and in which a fence is employed to force the work up to the tools-such, for instance, as the double-cut-ofi sawing-machines, in which the saws are mounted in columns adj ustable to and fro, in order to vary the distance between the saws.

It is the object of our invention to provide a fence which will accommodate itself to this adjustment of the machine; and it consists in the parts and arrangement and combinations of parts hereinafter more fully described and claimed.

In the drawings, Figure 1 is atop plan view of our improved invention. Fig. 2 is a side elevation of one of the slides. Fig. 3 is a bottom view of the same. Fig. 4 is a front elevation on an enlarged scale, and Fig. 5 is a detail in section showing the means of securing the cross-tie and the slides together.

A A represent tables or supports on which slides B B travel. by a series of bars I) 1). Near one of its ends each slide has pivotally secured to it, as at b, one end of one of the bars I). At its other end the slide is provided with a groove o in which a button C slides. The-button is provided with a shank 0, about which another of the bars b may take. The shank c is screwthreaded and has a nut taking over it, thereby clamping the bar and button at any desired point along the groove 11 The bars extending from the respective points of connection with the slide cross each other, and are pivotally secured to one another at the point of crossing. At their farther ends the bars are pivotally secured to similar bars extendo ing from the other slide. The bars are se- The slides are connected cured together at their pivotal points by means of bolts b and nuts I). Washers b may be placed between the bars at their pivotal points. The number of bars may be varied to vary the maximum distance which the slides will spread. The slides B B are provided with projections b, which take into and slide in grooves 11 a in the tables or supports A A, and may also have lugs 00 0c taking under the tables and adapted to retain the slides thereon. Each slide has at its forward end an ear or abutment b".

D is a cross-tie, against which in operation the material to be fed through the machine is placed. The cross-tie is provided with a groove d, which may have a square shoulder, as shown in the drawings. The cross-tie and slides are secured together by having a bolt 01' take into the groove dand through an aperture b in the car 19 a hand-nut 19 taking about the bolt and clamping the parts together.

Our improved device will readily accommodate itself to the adjustment of the machine. When the supports are moved toward each other, the ends of the barssecured to each slide will spread, the button C sliding in the groove 6 and when the supports are moved from each other the ends of the bars at the respective ends of the fence will approach. 8c The fence is so constructed that the slide will throughout the various adjustments remain parallel. \V hen the supports are adjusted, either or both hand-nuts and the nuts 0 are loosened suftlciently to permit either or both 8 5 bolts (1 and the buttons C to slide in their respective grooves. The fence will automatically accommodate itself to its new position. After the adjustment is made the nuts may be again drawn, thereby giving rigidity to the fence. The nuts I) are preferably drawn up sufficiently to give firmness to the fence, but allow a turning of the bars on their pivots when the supports are adjusted. The nuts 0' may be drawn up in a similar manner, if desired.

We claim 1. In a fence for wood-working machines, the combination of a pair of independent slides, a series of pivotally-connected bars, a

pivotal and a sliding connection between the bars at each end of the series and one of the slides, a cross-tie between the slides, and a hand-nut or similar means for clamping the cross-tie and the slides together, substantially as and for the purpose specified.

2. In a fence for wood-working machines, the combination of a pair of slides, a pair of supports for the slides, adjustable to vary the distance between them, with grooves and projections between the slides and supports, arranged to carry the slides with the supports in their adjustment, a series of pivotally-connected bars, a pivotal and a sliding connection between the bars at each end of the series and one of the slides, and a cross-tie between the slides, substantially as and for the purpose specified.

3. The combination of the supports A A, adjustable to vary the distance between them, the slides B B, grooves and projections between the slides and supports, the bars I), a pivotal and a sliding connection between the bars I) and each of the slides, the lugs a; at, taking under the supports, and the cross-tie lilgubstantially as and for the purpose speci- 4. The combination of the slides B B, the

bars 6, pivotally connected, as described, a pivotal and a sliding connection between the bars I) and the slides B B, the ear b on each of the slides B B, the apertures b the cross-tie D, adapted to span the distance between the slides, the groove (1 in the cross-tie, the'bolts d, taking into the groove and through the apertures, and the hand-nuts I), combined and arranged to permit an adjustment of the distance between the slides and secure the latter in their new relation, substantially as and for the purpose specified.

5. In a fence for wood-working machines, the combination of a pair of slides, grooves therein, buttons in the grooves, a series of pivotally-connected bars, a connection between one bar at each end of the series and one of the slides, a connection between the other bar at each end of the series and one of the buttons, and a projection for the material to be fed to the machine, substantially as and for the purpose specified.

GEORGE W. BUGBEE.

FREDERICK DAN NEE.

Witnesses:

ERNST REHM, HOWARD RALSTON.

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