US11582A - Machine - Google Patents

Description

UNITED ysTATEs PATENT OEEIOE.

soLoMoNseRar, uoEsoUTI-I BosTON, MAssAoHUsETTs AssIGNoR To s. s. GRAY AND 1" l 1 js.*a.woonsw` I i l MACHINE FORPLANINGQLUMBER OUT or WIND.

O Specification formingpart of Letters Patent No. 11,582, dated `August 22, 1854; Reissued April 1'?,`

1860, No. 945. O

To `all whom Z5 concern.:

Be it knownthat I, S. S. GRAY, of South Boston, in the county of Suffolk and State and useful Improvements in Planing-Machines, of which the following]` isa full,I clear, and accurate description, reference being had to the annexed drawings, making part of this specification, in which- Figure l is a perspective View of a planing machine with my improvements attached. Fig. 2 is a section through the cutter cylinder and the parts immediately connected therewith. F ig.` 3 is'a View Vof the bar which prevents the board from being raised by the action of the cylinder cutters. Fig. 4 is a front view of the cutter head and cutter. Fig. 5 `a plan of the traveling bed with the clamps for securing the lumber.

Planing machines may be divided into two classes-those in whichpressure is applied to the plank, before and behind the cutter, and which reduce boards to a uniform thickness, and those which are calculated to plane out of wind, and in which consequently no pressure can be applied to the board. In machines of the latter class, of which the Daniells planer is an instance, it has not been found practicable to make use of cylinder cutters as these require that the board be held firmly upon its bed, or at least that it be prevented from rising therefrom; the necessity has therefore existed in machines for planing out of wind, of using cutters which revolve horizontally across the board, the operation of which is very slow.

The first part of my invention consists in a peculiar' construction of cutter head for the purpose of more eectually turning and breaking the shavings,-the duty of the cap being performed by a portion of the cutter head which is peculiarly formed for the purpose as will be hereafter more fully eX- plained.

My second improvement consists ina peculiar form of clamp which is especially applicable to planing machines of this class, by which boards with inclined ends may be instantaneously and securely dogged or pieces of different lengths may be planed at the same time.

To enable others skilled in the art to make and use my invention I will proceed to describe the method which I have adopted of O carrying it out.

The general features, of the machine as they do not differ from those of others `of i. this class need not be here described. of Massachusetts7 have invented certain new A is thecut'ter head, of the formgrepresecuredto it by the screws working in slots in the planing irons. Immediately back of the cutting edge of the planing iron the cutter head is made concave as seen at 0 Fig. 2 for the purpose of bending over and breaking the shaving. The cutter head itself is `thus made to form the cap of the iron, itsconcave form immediately behind the cutting edge adapting it peculiarly to this purpose.

The cutter head is'raised and lowered in the usual manner in its frame B by means of the screw C and is clamped rmly to its ways by the thumb nuts f. f

E is the clamp seen in plan in Fig. 5. The body of the clamp is pivoted at its center Z upon the end of the screw F which works in the nut g and is operated` by the hand wheel G. The dogs 7L are pivoted to the body of the `clamp and may be secured by `means of the thumb nuts 7c in any position required for the purpose of holding pieces of different lengths or of dogging boards with oblique ends. One end of the board being secured to the movable dog I-I the dogs L are made to bear upon the other end of it the thumb nuts 70 are then tightended and the clamp `which is forced up by turning the screw G adjusts `itself by swivelling upon the point d until both its Vdogs have an equal bearing upon the end of the board. Both t-he dog I-I, and the clamp E are secured` to the movable bed I which carries the lumber through the machine.

For the purpose of holding the dog H securely to the bed of the machine, and also to enable itto be readily and quickly moved to accommodate it to the different lengths of boards to be planed I make useV .y the bed of the machine, the body of the clamp being pivoted at d and forced up by the screw F or its "equivalent, thedogs h being adjustable therein in the manner and 15 for the purpose set forth.

8. I claimthe Within described method of securing the dog H tothe bed of the machine7 by means of the teeth or cogs Z and the mortises in the side pieces m for the 20 purpose set forth.

SOLOMON S. GRAY.

Witnesses:

SAM. COOPER, JOHN S. GLOW.

[FIRST PRINTED 1913.]

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