US76740A - f u r m a n - Google Patents

Description

@when 15125 get/cnt @ffice Liam Patna N0. 76,740, .Maz April 14, 186s.

IMPROVEMENT IN WOOD-PLANING MACHINES.

dige .tlgemle wenn tu in tigen ihnen izitcut mit making niet nt tige sans.

'IO ALL Wl-IOM IT MAY CONCERN:

Be it known that I,'O. P. FURMAN, of Addison, in the county of Steuben, and State of New York, have invented a new and useful Improvement in Planing-Machinesl and I do hereby declare that the following is a full,-clear, and exact description thereof, which will enable others skilled in the art to make end use the same, reference being had to the accompanying drawings forming part of this specification, in which- Figure 1 is atop view vof my improved machine. u

Figure 2 is a front view of the same.

Figure 3 is a cross-section of the same, taken through the line x, fig. 2.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnish an improved machine, by means of which the plane surfaces of turned work may be accurately and conveniently planed, whether said plane parts bc square or polygonal'in their. cross-section; and it consists inthe construction andecombination of the compound slide, by means of which the work is held and fed forward to the cutters, with the frame ofthe machine, as hereinafter. more fully described.

A is the frame of the machine. B is a shaft, to which motion may be given byva band passing around the pulley C, formed upon or attached to said shaft. D is the cutter-head, which is attached to the end of the shaft B, and to which-cutters are attached in the ordinary manner.

To the side of the frame A, below the cutterhead D,` is attached a stationary table, E, which has one or more cleats or slats attached to it for the `slide F to move back and forth upon -when feeding the 'work to the cutter. F is a slide, having a groove or grooves formed in its under side, todfit upon the way formed upon the tableiE. f are arms, projecting-upward from the ends of the fslide F, to which are attached centres for holding the work to be planed in the same manner as the work is held in a lathe, so that it may be turned to plane one side after another, without detaching it from the' machine.

The central part of the slide F is slotted longitudinally, and in the yslot thus formed is placed a slide, G,

which may be raised up against the under side of the work, to hold itsccurely-and steadily while being operated upon by the cutters.

To the sides of the s lide G are attached inclined cleats or slats, which enter and work in inclined grooves formed in the slide F, as shown in fig. 2. H is a shaft working in bearings in the slide F, andto the outer end of which is attached, or upon it is formed, a crank, I, for convenience in operating it. To the middle partof the shaft H is attached a. short arm, t, which works in a recess in the under side of the slide Gr, and'which actsas a lever to raise and lower the said slide, G.

If desired, the arm it may be replaced by a small gear-wheel, the teeth of which meshinto the teeth of a rack, attached to the slide Gr, to raise and lower the said slide.

.I are guide-blocks, attached to the frame A in such positions as to hold the slide F down upon the table while being moved back and forth. i l

In using the machine, the work is adjusted upon the centres' of. the slide F. '.lhe slide G is then raised, tov

hold the said work securely while being operated upon by the cutters. v The slides F and G are then moved forward to thecutters. When one' side or face ofthe work is finished, the slide Cr is lowered, and the work 4turned upon the centres, so as to present an'other side or' face to befacted upon by the cutters, andthe slide G for the purpose specified.

is again raised, to hold it steady and firm. This is continued until all the sides or faces of the work have been operated upon. Y

I claim as new, and desire to secure by Letters Patent I The slide G, having inclined ways upon its sides, working verticlallyin inclined grooves in the sides of the slide F, in combination with the crank-shaft and-lever h ,'all constructed -and operating as herein described,

o. Pf FURMAN.

Witnesses M. W. DARRIN, J. W. Damm.

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