US906125A - Mitering-machine. - Google Patents

Description

W. R. POX (2M. LUND.

MITEBING MACHINE. APPLICATION FILED PEB.11, 1907.

Patented Dec. 8, 1908.

Ily /QQEOWS, iT w I lbl a I v Witnesses:

-UNITED STATES PATENT OFFICE.

WILLIAM R. FOX AND MATTHEW LUN D, OF GRAND RAPIDS, MICHIGAN, ASSIGNORS TO FOX TYPEWRITER COMPANY, OF GRAND RAPIDS, MICHIGAN.

MITERING-MACHINE.

Specification of Letters Patent.

Application filed February 11, 1907.

Patented Dec. '8, 1908.

Serial No. 356,933.

To all whom it may concern:

Be it known that we, WILLIAM R. Fox and MATTHEW LUND, citizens of the United States, residing at Grand Rapids, in the county, of Kent, State of Michigan, have invented certain new and useful Improvements in Mitering-Machines, of which the following is a specification.

This invention relates to improvements in miter-cutting machines, particularly to the style known as the Fox trimmers.

The objects of this invention are: to provide improved supports or gages for crown and other irregular shaped moldings or parts,

:5 whereby they may be properly and securely supported and trimmed by the usual knife of the Fox trimmer, such as illustrated in Patent No. 893,790, dated December 4:, 1888, which we have herein styled the FoX trimmer, or Fox mitering machine.

Objects pertaining to details of construction will definitely appear from the detailed description to follow.

We accomplish the objects of our invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of our invention is fully illustrated in the accompanying drawing forming a part of this specification, in which: I

Figure 1 is a transverse detail sectional view through a Fox mitering machine, embodying our improvements, taken on a line corresponding to line 11 of Fig. 2; Fig. 2 is a plan view of the right-hand end of a Fox trimmer, embodying the features of our invention; Fig. 3 is an enlarged detail transverse sectional plan view taken on line 44 of Fig. 1, showing the details of the adjustable clamp on the triangular block; and Fig. 4 is an enlarged detail sectional elevation view, taken on line 44 of Fig. 2.

In the drawing, the sectional views are taken looking in the direction of the little arrows at the ends of the section lines, and

similar letters of reference refer to similarvided at the top which is supported by the arm F secured to the table A'by the screws f and is adjusted nicely in position by the set screw f.

The knife carriage is actuated by any wellknown means to carry the knife against the block or material to be cut. Besides the usual swinging gage C which is adjustable to different positions on the table A, by the usual means, we provide a triangular gage block G which is clamped in place on the table by a suitable clamp I which is secured to the top rail F by the clamping screw 2', and a clamping screw i engages the. top of the triangular gage block G and holds it securely against the table A.

A suitable groove is provided on the table for effectively locating. the triangular gage block G by en aging a key in a groove in said gage-block. vertical slot g is in both faces of the triangular gage block G and a clamping block G is provided that is adjustable up and down on each of said faces of the triangular block G.

A lug 9 extends from this clamping block G into the slot q in the face of the block. A vertical rock shaft H with eccentric journals H at its opposite ends which is supported by bushing bearings h at its opposite ends, extends through a round'hole in the lug g. The upper end of the rock shaft H is slotted so that it can be turned by a screw-driver and, owing to the eccentric bearing, the rotation by a screw-driver causes it to draw the clamping block G securely against the face of the triangular gage block G, positively locating it at any desired elevation.

Inuse, when it is desired to cut, a crown molding as J, to a miter, the adjustable swinging gage O is swung into the proper position, the moldingplacedagainstit, as indicated in Fig. 2, the triangular gage block G is carried against the molding at the proper position and is clamped in position by the clamp I. The clamping piece G is then forced against the'upper side of the molding and locked in position by turning the vertical rock shaft H in its eccentric bearings, when the knife will trim the molding effectively, cutting it to a proper miter.

We desire to remark that our invention pertains to the means here described broadly considered as well as to the specific details.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is:

1. In a mitering machine, the combination of a table A; a top guide rail F secured thereto by suitable means: a knife carriage B an adjustable ga e C; a triangular block G with a clamp I on t e top rail F for clampin said block upon the table A; an adjustable 0 amping block G on the face of the triangular block G, with a lug g thereon extending into a slot g in the face of said triangular block, and a Vertical rock shaft H with eccentric journals H in suitable bearings, extending through a hole in said lug g, for drawing the clamping block G securely against the face of the triangular block, all co-acting substan- 1l liaglly as described and for the purpose speci- 2. In a mitering machine, the combination of a suitable table; a knife with suitable guides at one side of the same; an adjustable gage C therefor; ,a triangular block with suitable means for securing the same to said table an adjustable clamping block on the face of said triangular block with means for securing it in place on the face of said triangullar block, coacting for the purpose specifiec 3. In a mitering machine, the combination of a suitable table; a knife with a suitable guide at one side of the same; an adjustable gage C therefor; a triangular block with suitable means for securing the same on said table with one of the faces of the triangle in proximity to the path thereof; an adjustable clamping block on each of the faces of said triangular block which are at an angle to the path of the knife, coacting for the purpose specified.

4. In a mitering machine, the combination of a table; a knife suitably actuated in proximity thereto; a triangular block with means for securing it upon said table; a clamping member on the face of the said triangular block, having a lug g projecting into a slot in the same; and a vertical rock shaft H with eccentric journals H in suitable bearings extending in the lug g for securing the clamping block in the face of the triangular block, for the purpose specified.

In witness whereof, we have hereunto set our hands and seals in the presence of two witnesses.

WILLIAM R. FOX. [L. s.] MATTHEWV LUND. [L. s.] Witnesses:

J. DE VLIEG, Jos. B. WARE.

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