US90005A - Improvement in feed-device for saw-mill - Google Patents

Description

y i v HLemrsPamt No,v9o,oo5, dazezMay 11,1369.

I IMPnovnMnN-r Penn-Dramen ron :saw-1mm..y

ThcBchedulefefen-ed toin these Letter-@Patent and making part 0f the same *To all 'whomv 'it ma/y concern: y i

Be it knownthatI, JOHN EQKEYT, in the city of Louisville, `county of Jefferson, in the State of Keir tucky, have invented anew and improved Metliodof Gigging or Running Back the Log-Carriage of `Cireular-Saw Mills, of which the following is an, exact description, letters or numbers below referring to similailetters or' figures on drawings hereto annexed. A is ,the sawfshaft, havingvou "it a cone-pulley, K,

" which drivesthe feed-shaft B by cross-belt from cone- `pulley K to cone-pulley L, on shaft B. 4 Y

-Qrr shaft B is also'a friction-pulley, G, which drives a larger friction-pulley, F, on shaft O, which transmits motion to shaft D, through the two toothed wheels,

H, on shaft O, 'and I on shaftl), thereby'moving the `log-carriagetoward the saw by pinion J ou shaft D,

and the usual rack onthe `log-carriage. Y

y The method of reversing" the motion of the log-carriage orgigging as follows: I A

0n' shaft A isa friction-pulley,-E, as much larger in diameter than pulley G on shaft B, as is necessaryto4 increase the backing-motion of the log-carriage faster than the forward or feeding-motion of the same.

` 0n shaft Gis a connecting-rod or link, M, attached or coupled to the `end of shaft 0 at M7 the other end of which ias-connected bya loose joint with a pin, a, to

` 1everrlfwith itsfulcrum-pin `b. By moving-the lever back, as y it istechhically termed, isv

'N in the direction of the arrow' from c to d, the connecting-rod M forces the large friction-pulley, and also the end of shaft G, over in contact with the surface ofthe friction-pulleyEon shaft A, the journal-box O having the bolt-holes slotted, as shown at e e` in Figures end of shaft C, thereby reversing the motion of the log-carriage.

feeding the log-carriage to the saw. l

The dotted circle f, Figure II, shows-the position of the friction-pulley F when. backing the log-carriage. The friction-pulley F is made with iron` arms and friction. y

What I claim as my invention, and desire to secure by Letters Patent, is

1. rIhe arrangement of the cone-pulleys K and L, friction-pulleys F and G, and gear-wheels' H, I, and J, for feeding the carriage and logtoward the saw, -substantially in the manner shown and described.

2. The arrangement of friction-wheels E and F, and

and thelog, lsubstantially-as shownand described;

` JOHN E. KEYT. Witnesses:

J AMES W. AJNsLm',

J As. Mnmon III and IV, to allow of the aforesaid motion of the )Y The drawings represent the machine in the of rim of wood, or other suitable material, for increasedl gear-wheels H, I, and J, for gigging back the carriage y

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