US595077A - Setts - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

T. E. & G'. T. RICH. MACHINE FOR JOINTING BARS 0F WINDOW SASHES.

No. 595,077. Patented Dec. 7, 1897.

(No Model.) 2 Sheet-Sheet 2. T. E. 81; G. T. RICH. MACHINE FOR JOIN-TING BARS OF WINDOW SASHES. No. 595,077.

Patented Deo. 7, 1897.

UNTTnT) STATES PATENT OFFICE.

THOMAS E. RICH AND CHARLES T. RICH, OF BARRE PLAINS, MASSACHU- SETTS.

MACl-HNJE FOR JOINTING BARS OF WlNDOW-SASHES.

SPECIFICATION formingpart of Letters Patent No. 595,077, dated December 7, 1897.

Application filed February 9, 1897. gerial No. 622,710. (No model.)

To (all whom/ it may concern.-

Be it known that we, THOMAs E. RICH and CHARLES T. RICH, citizens of the United States, residing at Barre Plains, in the town of Barre, county of lVorcester, and State of Massachusetts, have invented a new and use ful Improvement in a Machine for J ointing the Bars of lVindow Sashes, of which the following is a specification, reference being had to the accompanying drawings, forming a part of the same, in which- Figure 1 represents a front view of a machine embodying our invention. Fig. 2 is a side view of the same. Fig. 3 is a vertical central sectional view on line 3 3, Fig. 1. Fig. 4: represents one of the detachable bed-pieces which is attached to the tilting table on which the work is supported, and Fig. 5 represents a window-sash having diamond-shaped panes and requiring the bars of the sash to be placed at an angle to each other other than a right angle.

Similar letters refer to similar parts of the different figures.

The object of our present invention is to provide a machine for cutting the ends of sashhars at an acute angle, such as are required in building sash for diamond-shaped panes, as represented in Fig. 5, and our invention consists in the construction and arrangement of parts,as hereinafter described,and pointed out in the annexed claims.

Referring to the accompanying drawings, A denotes an upright stand on which the operating parts of the machine are supported.

B denotes a sliding head sliding in ways B on the front of the standA and carryinga pair of cutting-knives B and B The sliding head B is operated by a bellcrank lever C, pivoted in the upper portion of the stand A and arranged to carry the sliding head downward by a foot-treadle G and connecting-rod O and upward by the blade-spring C and link 0*, the above-enumerated parts being similar in their construction and operation to the corresponding parts in foot mortising-machines such as are now in common use.

In front of the stand A is a plate D, attached at its lower edge to a spindle D, which is capable of sliding in the stand A and is supported.

held in position bya set-screw D The stand A is provided with a screw-threaded hole E to receive a screw E, having a hand-wheel E at one end and a neck Eat the opposite end, journaled in the plate D, so that by loosening the set-screw D and by rotating the screw E the plate D can be moved away from or toward the upright stand A; Pivoted at F upon the front side of the plate D are bars which form tables F and F by which the work is The plate D is provided with curved slots F concentric with the pivots F, to receive tightening-screws F Which are screwed into the tables F F and serve to hold them at the desired angle. The tables F F are provided with longitudinal slots F to receive the tightening-screws F which screw into the wooden bars G G, forming the bed-pieces upon which the Work rests.

The upper faces of the bed-pieces C are channeled, as at G, Fig. 2, to accurately fit the molded side of a sash-bar.

The tables F and F are placed at the proper angle to a vertical plane, and the bed-pieces G G are moved downwardly upon the tables until the corners of their lower ends intersect the path of the knives, so that on the downward movement of the sliding head B the knives B and B will out the corners of the bed-pieces on the lines Gr G The sashbar to be cut is then laid upon one of the bedpieces Gin the proper position to have the lower end shaved off by one of the downwardly-descendin g knives and trimmed at an angle corresponding to the angular position of the table which supports the sash bar. During the cutting operation the bed-pieces G G form a solid support for the under side of the sash-bars to the cutting-line of the descending knives, as the downward path of the cutting edges of the knives B and B coincides with the lines G G. the underside of the sash-bar up to the cutting-line of the knives is necessary in order to prevent the splintering of the bar upon the under side as the knife passes through it. Whenever the angle of the tables is changed in order to cut the sash-bars at a different angle, the bed-pieces G are moved so as to be again trimmed by the knives B B so that the beveled ends of the bed-pieces will always The support of correspond with the path of the cutting edges of the knives. The sash-bar support is therefore capable of three separate and independent adjustments: first, by the movement of the plate D toward or away from the stand A; second, by the adjustment of the angle of the pivoted tables F and F and, third, by the longitudinal movement of the bed-pieces G G, by which their lower ends are brought under the knives B and 13 so as to bevel the ends of the bed-pieces on a line coinciding with the path of the cutting edges of theknives B and B WVe do not claim as new any of the operating mechanism by which the knives are moved downwardly, neither do we claim as broadly new the provision of an adjustable work-support; but in our improved machine we provide special adjustments which adapt it to the special work it is intended to perform, and we also provide means for the solid support of the sash-bar immediately next to the cutting-line whatever the angle of the tables may be, whereby we prevent the splintering of the fibers of the wood on its lower side by the edges of the cutting-knives.

By the above-described apparatus the end of the sash-bar is cut smoothly without the splintering of the wood, and the angle at which the end is cut is readily changed, and the absolute control of the work relatively to the path of the cutting edges of the knives B and B is secured. The table for supporting the work is pivoted at its lower end and at one side of the path of the descending knife, so that the angular adjustment of the table varies the lower end but little relatively to the path of the knife and allows the work to be moved downwardly into the path of the knife.

What we claim as our invention, and desire to secure by Letters Patent, is

1. An organized machine for jointing the bars of window-sash and comprising in combination the following instrumentalities a supporting-frame provided with ways for a reciprocatingknife,avertically-reciprocating knife, a vertical plate held by said frame and horizontally adjustable whereby the face of said plate is carried toward or away from the path of said knife, a table having one edge resting against the face of said plate and pivoted at one end to said plate, means for holding said table at an oblique angle to the path of the knife, a wooden bed-piece lying on the upper side of said table, means for adjusting said bed-piece longitudinally whereby its end is carried into the path of the reciprocating knife, and means for imparting a verticallyreciprocating motion to said knife, substantially as described.

2. In a machine for jointing sash-bars, the combination of an upright stand provided with vertical ways for a reciprocating knife, a reciprocating knife, a spindle held in said stand and adjustable in a horizontal plane, a vertical plate attached to said spindle, a table pivoted at one end upon the front side of said vertical plate, means for holding said table at an oblique angle to the path of said knife, a wooden bed-piece held on said table and longitudinally adjustable thereon, and means for reciprocating said knife past said wooden bedpiece, substantially as described.

3. The combination of the upright stand A provided with ways for a reciprocating knife, a spindle D held in said stand, a vertical plate D attached to said spindle and located behind the path of said knife, means for moving said plate toward or away from the path of the knife, atable F pivoted at one end to said plate, means for holding the opposite end of said table in a fixed position, said table having a longitudinal slot, a wooden bed-piece resting on said table, bolts held in said bedpiece and extending through said slotand tightening-nuts carried by said bolts and means for reciprocating said knife past said wooden bed-piece, substantially as described.

Dated this 30th day of January, 1897.

THOMAS E. RICH. CHARLES T. RICH.

Witnesses:

EDWIN J. AMES, J AMES CRAM.

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