US744368A - Resawing-machine. - Google Patents

Description

No. 744,368. PATENTED NOV. 17,1903,

J. 0-. LAWHON;

RESAWING MACHINE.

APPLICATION FILED MAY 25, 1903.

N0 MODEL. 2 SHEET8-SHEET i.

27 45 jfi? 45 No.- 744.368. PATENTED NOV. 17, 1903.

J. 0. LAWHON. RBSAWING MACHINE.

APPLICATION FILED MAY 25, 1903.

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UNITED STATES Patented November 17, 1903.

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RESAWlNG-MACHINE.

SEECIEICATION forming part of Letters Patent No. 744,368, dated November 17, 1

Application filed May 25. 1903- Serial No. 158.657. (No model?) To all whom it may concern.-

Be it known that I, JAMES GARY LAWHoN, a citizen of the United States, residing at Lake City, in the county of Columbia and State of Florida, have invented a new and use-' ful Resawing-Machine; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to improven'ients in resawiug-machines; and it has for its object to improve the construction of resawing-machines and to provide a simple and com paratively inexpensive one designed to be used in connection with a planing-machine for the purpose of resawing boards or lumber and adapted to receive the material the same leaves the planing-machine.

A further object of the invention is to provide a machine of this character in which the feed-rolls of a planing-machine may be utilized for feeding the boards or lumber to it.

With these and other objects in view the invention consists of the construction and novel arrangement of parts hereinafter described and shown, and particularly pointed out in the claims hereto appended.

In the drawings forming part of this specification, and in which like numerals of reference designate corresponding parts, Figure 1 is a plan view of a resawing-machine constructed in accordance with this invention.

- Fig. 2 is a longitudinal sectional view. Fig.

cured to the door, and the ends, which have vertical openings 7, are provided on their exterior with upright ways 8 for the reception of slides 9 and 10, which carry bearing- brackets 11 and 12. The slides project into the openings 7 and are provided with threaded apcrtures for the reception of adjusting-screws 13, swiveled [0 the top of the frame and provided with hand-wheels 14, by means of which the slides and their bearing-l'n'aokets are adjusted vertically, fora purpose hereinafter described. 7 The bearing-bracket 12 is provided with alined bearings which receive a horizontal saw or shaft 16, which carries a band saw wheel 17. The other bearingbracket 11 is provided with a dovetailed way 18, receiving a dovetail slide 19, which is provided with a bearing 20 for a horizontal shaft 21, which carries a band-saw wheel 22. The slidable bearing is provided with a depending lug or portion 23, having an opening and operating in a groove 24 of the bearing-bracket. This lug 23 is engaged by an adjusting-screw 25, which is mounted on the bearing-bracket and which is adapted to force the slidable bearing outward. The slidable bearing is yield-ably engaged'by the screw, which hasa coiledspring 26 disposed on it and interposed between the lug of the slidable bearing and an adjustable slide 27. The adjustable slide 27 is dovetailed to [it the dovetailed way of the bearing-bracket 11 and is provided with a dependinglug 28, having a threaded opening to receive the screw. When the screw is rotated, the slidable member 27 is moved inward and outward, and the spring, which is engaged by the slidable member, forces the slidable bearing outward. By this construction the band-saw 29, which is arranged on the band-saw wheel, is maintainedvyieldably at the desired tension. The slidable bearing is provided with a slotted'arm which overlaps the slidable member 27 and which receives a fastening device 32 thereof. The movement of the slidable bearing independent of the slidable member is limited by this construction.

The slidable bearing has mounted upon it a plate 33, pivoted at 3% at one side of the bearing 20 and provided at the opposite side with a curved slot 35, in which is arranged the fastening device 36. This pivoted plate, whichcarries the bearing 20, is also engaged by apair of set-screws 37, mounted in threaded openings of a flange or projecting portion 38 of the slidable bearing. By this construcloo tion the bearing may be trued and the bandsaw wheel may be maintained in proper relation with the other band-saw wheel 17.

The table is provided at opposite sides with adjustable lumber-guides 39, having ad justable guide members 40 for engaging the lumber. These guide members 40, which are arranged at the inner faces of the guides 39, are slotted to receive set-screws 41 and are beveled or rounded at their inner ends to permit the lumber to pass readily beneath them and are adapted to hold the lumber whileit is being sawed. The table is also provided at its outer end with guides 42, having upwardlyextending flanges and adapted to guide the lumber as it leaves the saw. The lumberguides 39 and 42 are flanged to receive fastening devices, which operate in transverse slots of the table.

The saw operates above a transverse groove 43 of the table and is arranged in guides 44, having vertically-adjustable stems 45, secured by set-screws in guide-blocks 46. The guide-blocks 46 have vertical and horizontal openings. The vertical openings receive the shanks of the saw-guides and the horizontal stems 47 of plates 48, which are secured to the outer faces of the lumber-guides 39. The guide members or blocks 46 are adjustable longitudinally of the table and are also adapted to swing vertically.

The lumber-guides 39 are provided at their inner faces with vertical recesses 49, and the guide members 40 are provided with ribs or flanges to fit the recesses, whereby they are prevented from turning on the fastening de vices 41.

The screws 13, which adjust the'bearingbracket, move the band-saw wheels vertically and enable the upper flight or run of the saw to be adjusted in the desired position with relation to the table.

What I claim is- 1. In a machine of the class described, the combination of a frame, a table disposed transversely of the frame and provided at opposite sides with lumber-guides, lumber-engaging members located at opposite sides of the table, band saw wheels located at opposite sides of the table, a band-saw arranged on the band-saw wheels and having one of its flights extending across the table, and means for operating the band-saw, substantially as described.

2. In a machine of the class described, the combination of a frame, a table disposed transversely of the frame, band-saw wheels located at opposite sides of the table, a band-saw arranged on the band-saw wheels, inner and outer lumber guides arranged at opposite sides of the table, and spaced apart to receive the saw, and the vertically-adjustable lumher-engaging members mounted on the inner lumber-guide, substantially as described.

3. In a machine of the class described, the combination of a frame, a transverse table, lumber-guides located at opposite sides thereof, stems mounted on the lumber-guides and arranged horizontally, guide box or members having openings to receive the stem and adj ustable on the same, and vertically-adjustable sawguides depending from the guide box or members, substantially as described.

In testimony whereof I have hereto affixed my signature in the presence of two witnesses.

JAMES CARY LAWHON. Witnesses:

W. J. ROLHUCK, J. C. RELIHAN.

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