US73031A - Improvement in saw-mills - Google Patents

Description

` r'. ige of the same by means of-a suitable cross-head and muley.

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IMPROVEMENT IN SAW-MILLS.

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TO ALL W'HOM IT MAY CONGE-RN:

Be it known'that I, C. D. OLMSTED, of' Williamsport, Lycoming county, and State of Pennsylvania, have invented a new and improved Muley-Saw Hanging; and I do hereby declarel that the following is a full and exact description thereof, reference being hadto the accompanying drawings, and to the letters of reference marked thereon. I I

The nature of my invention 'consists in a simple means of adjusting perfectly a saw, and regulating th To enable others skilled in the art to make and use my invention, I willproceed to describe its construc- 'tion and operation.

A A, Figure 1, show stationary framework,` of an ordinary character, seen in all saw-mills, for the purpose of' restraining the machinery used, and which is constructed as may be `required. B is a stationary column, firmly fastened to the framework A. G is a plank, convex on its posterior surface, and held fast to the stationary column B by suitable screws or bolts. c c are wedges placed under the edges of the convex plank, of sufficient size to make the surface straight, and which wedges can be driven on either side, changing the range of the saw as may be deemed important. l, d d are hooks, iirmly fastened to the convex plank C, to hold the muley to its place, and, extending into a step, made for the purpose, allows the-muley'to slide up and down. D is the back part of-the muley proper, and in which the stop or rabbet is cut, to receive the hooks el.v E is the front guide, attached by lugs P P to the back part D, as shown clearly in Figure 5, in' lwhich figure the opening to receive the saw is also seen. F F, Figures 3 and 4, are the shuttle-blocks, fastened to the saw by a single bolt.' The shuttle plays in the space between the front guide E and theback part of the muley D,

which space is denoted by r, iig. 5. e is a steady-plate, attached t'c the fr ont guide E, and extending also to the back part D,and protects the lower end ofthe muley. G-is an ordinary handwheel,having a. rack and pinion,

in the usual manner in which such appliances are constructed, for the purpose of elevating or depressing the muley as desired. 'lhe lugs P P, by which the front guide is fastened, are slotted, as seen in gs. 1, 2, and v5, for the purpose of adjusting the front guide E to the rear of the shuttle-blocks F F. The station-ary column I is attached to the framework A A at its lower part, and to it arc fastened, on steps S S, the 'guides J J", on

l which the cross-head K slides. The cross-head is made in two parts. The back part, t, g. 1, is made of wood,

and the platee of iron, having a slot 2, Figure 6, for the pitman to enter. To the iron plate 'v arecast the lubricating boxes LL, iig; 6, and also one half of the stirrup, indicated by m, in which is a depression to receive a section of a ball, N. The otllcrhalf of the stirrup o is loose, and kept to its place on the iron plate v'bymeans of a lug, cast upon the same, or any other convenient method. A box, rv,- passes through the ball, or section of ball, and through the stirrup, which keeps the saw held in said stirrup.' In Athe side ofthe stirrup mare also inserted two sctscrcws y g, figs. 2 and 7, by which means thc range of the saw at its lower extremity is regulated. By tightening theA screw or bolt fr, the saw is pressed firmly upon the section of the ball N, and thiis al resting-surface is given,tl1e saw keeping it steady constantly, audentirely obviating the diiculty of binding.

Haring thus described my invention, what I claim, and desire to procure by Letters Patent, isl. The stirrup, with its fast and loose sides, holding in one. side the section of a ball, and provided with set-screws for adjustingpurposcs, all arranged and constructed as shown and described, and for the purposes indicated.

2. In connection with the stirrup, as shown,' I claim the construction and arrangement of the various parts which constitute my muley-block, as described and for the uses indicated.

c. D. oLMsTEAD.

Witnesses WM. C. DOANE, M. J. DOANE,

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