US485251A

US485251A - Mathias miller

Info

Publication number: US485251A
Authority: US
Publication date: 1892-11-01
Anticipated expiration: 1909-11-01

Description

(No Model.)

M. M. APPLEMAN.

SAWMILL DOG.

No, 485,251. Patented Nov.1,.189,2.

UNITED STATES PATENT OFFICE.

MATHIAS MILLER APPLEMAN, OF ROI-IRSBURG, PENNSYLVANIA.

SAWMlLL-DOG.

SPECIFICATION forming part of Letters Patent No. 485,251, dated November 1, 1892.

Application ledlebrnary 20, 1892. Serial No. 422,309. (No model.)

.To all whom it may concern:

Be it known that I, MATHIAS MILLER APPLE- MAN, a citizen of the United States, residing at Rohrsburg, in the county of Columbia and State of Pennsylvania, have invented certain :new and -useful Improvements in Sawmill- Dogs; 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.

This invention relates to sawmill-dogs, and aims to provide means for securely holding round logs and which when not required will turn out of the way.

The improvement consists of the novel features which will be hereinafter more fully described and claimed, and which are shown in the accompanying drawings, in which- Figure lis a side elevation of a dog embodying my invention. Fig. 2 is a front view of the log-hook. Fig. 3 is a detail perspective view of the log-hook. Fig. 4 is a detail view of the upper end of the turn-post, showing the spring for turning it on its journals. Fig. 5 is a cross-section on the line X X of Fig. l, showing the springs for holding the operating-lever in an elevated position.

The standard A, which supports the operating devices of ordinary construction, and the sliding plate B, having prongs C, is secured to standard A in the usual way-. e.,

j by bolts a, which pass through oblique slots 0, in the said plate B and which are secured at their inner ends in the said standard. This plate B is operated by the. bell-cranklever D and the link d, the latter connecting the plate B and the lever D. The springarmsE hold the lever D in a vertical position by embracing the sides thereof and springing over its front edge.

The plate B projects above the standard to obtain the requisite height necessary to adapt the device for large-sized timber without adding to the cost of construction or materially increasing its weight.

The turn-post F is journaled at its ends in ,the lugs G and H, which are projected from the side of the sliding plate B. The upper journal f is extended above the lug G, and the spring I, mounted thereon, has one end let into lug G and the other end secured to the said journal f, preferably by being inserted in an opening therein. The log-hook J is adjustable on the turn-post, being held thereon by the sleeve K, which embraces the said post. The lip k, projecting from one side of the loghook, is adapted to engage with one of the series of teeth of the rackbar L, which is secured to the plate B. The operation of the dog with reference to standard A and pronged plate B is well understood, and when it is desired to further secure the log when slabbing' the log-hook .I is adjusted to the proper elevation on the turn-post and held in the located position by swinging it around until the lip 7c thereof engages with the rack-barL. Then theleverD is depressed, it will force the log-hook, as well as the prongs C, into the log, as will be readily understood. The swinging of the log-hook into an operative position turns post F against the tension of spring I, and when the lever is elevated and the log-hook disengaged it will be carried back out of the way by the reaction of the spring I on the turn-post, as will be readily comprehended.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. In a sawmill-dog, the combination, with the sliding pronged plate, of the turn-post provided with a log-hook and the spring for turning said post so as to carry the log-hook back out of the way, substantially as described.

2. In a sawmill-dog, the combination, with the sliding pronged plate, of the turn-post and the log-hook adjustable on the said post and held in the located position by engaging with the said plate, substantially as set forth.

3. In a sawmill-dog, the combination, with the sliding pronged plate, of the turn-post, the spring for turning the post back, the loghook adjustable on the turn-post and having a lip, and the rack-bar to be engaged by the said lip and hold the log-hook in the located position, substantially as set forth.

In testimony whereof I afx my signature in presence of two witnesses.

MATI-IIAS MILLER APPLEMAN.

Vtfitnesses:

G. F. QUICK, MILTON E. COX.