US537708A - Machine for manufacture of lumber - Google Patents

Description

2 Sheets-Sheet 1.

' (No Model.)

P OGONNOR 8: W DONOVAN MAGHINE 'POR MANUFACTURE-O]? LUMBER.

No. 537,708. Patented Apr. 16, 1895.

mmwmaes WITNESSES NITED STATES PATE T MACHINE FOR MANUFACTURE OF LUMBER.

SPECIFICATION forming part of Letters Patent No. 537,708, dated April 16, 1895.

Application filed October 1, 1894:- Serial No. 524| (N0 modem United States, residing at Menominee, in the county of Menominee, State of Michigan, have invented certain new and useful Improvements in Machines for the Manufacture of Lumber; and we do 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, reference being hadlto the accompanying drawings, and to the letters of reference marked thereomwhich form apartof this specification.

This invention relates to an improved device for the manufacture of lumber, and con-1 sists in the construction and arrangement of parts, as hereinafter fully set forth and} securely to the knees, when the wings B are The object of the invention is to provide. means whereby the log or timber, when being sawed, may be so supported upon the carriage as to enable it to be sawed entirely into lumpointed out particularly in the claims.

ber leaving but a thin board orplank dogged to the knees which, by suitable devices, is held from springing, resulting in the production of perfect lumber; and a further provision for withdrawing the supports within the line of the face of the knees so as to be out of the way when turning the log or timber upon the carriage. This obj eat is attained by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a general perspective View showing a saw-mill carriage provided with our ad-" justable supporting wings hinged to the knees of the carriage. Fig. 2 is an enlarged detail in elevation of the end of the carriage. Fig. 3 is an enlarged plan view of same, showing by dotted lines the movement of the support ing wings.

Referring to the lettersof reference, A designates the knees of a saw-mill carriagewhich are mounted thereon to be operated in the ordinary way.

B designates the supportingwings consisting of rectangular frames, which are hinged or pivoted, by means of the vertical bolts 1), to the brackets (3, secured to the opposite sides of said knees, whereby the free ends of said Win gs may be swung horizontally. J ournaled in the frame of the wings is a vertical cross bar D, to which the forward bifurcated ends a of the actuating rods E are coupled, which rods extend rearward on each side of said knees, and are journaled at their rear ends, by means of a cross bolt e, to the free end of a swinging bail or frame F. This bail is in turn hinged to the extreme end of the knee by the transverse rod or bolt (2, so as to enable its free end carrying the rods E to swing in the arc of avertical circle; by which motion of said bail said rods are actuated to swing the supporting wings outward into alignment 'withthe face of the knee, or to retract them, as clearly shown by solid and stipple lines in Figs. 2 and 3. the wings are moved back out of line with the face of the knee, and the log to be sawed .is'rolled onto the carriage, faced, and dogged swung forward, by the operation of the bail F, so that they bear against said log in line with the face of the knees, thereby supporting the log or lumber being sawed on each side of the knees and preventing any undue springing or vibration thereof, enabling the log to be sawed into perfect lumber and leaving a board or plank but one inch in thick- ,ness if desired, upon the carriage after the last cut.

By. making the wings adjustable they may be swung backward out of line with the face of the knees, so as to be out of the way when rolling logs onto the carriage or turning the timberthereon, preventing a knot or other projection from coming in contact with the wingand holding the log away'from the knee, so that it cannot be properly dogged, as would be the case were said wings stationary, also preventing the accumulation of loose bark between the wing and log or timber. The hinged end of said wings is provided with a shoulder, as at e' in Fig. 3, which engages the side of the knee and arrests the wing when PATRICK OCONNOR AND WILLIAM DONOVAN, OF MENOMINEE, MICHIGAN In the operation of this device, 7

the face thereof is in line with the face of the knee.

The actuating or connecting rods E are provided with turn buckles h, whereby said rods may be adjusted longitudinally to bring said wings into proper alignment and to take up all lost motion in the parts.

It is not necessary that the supporting i do wings be thrown into alignment with the face of the knees to bear against the log or timber on the carriage until said log shall have been nearly sawed into lumber, as it is only when the timber has been so reduced by sawing as to render it unstable and springy that the supporting wings are required. Therefore, in order to operate said wings automatically, at the proper time, a sweep G is made fast to the set shaft H and adapted to swing in the path of a finger I pivotally depending from the rod E and confined between two projecting studs 0 which permit a limited vibration thereof. This set shaft is provided with a pinion J which meshes with a rack K attached to the under side of the knee, and is operated by a lever L (see Fig. 1) suitaby attached to said shaft, by means of which the shaft is rotated to carry the knees forward to feed the log to the saw, the motion of said shaft being reversed to cause said knees to run backward on the carriage when the log shall have been sawed into lumber. The position of the parts is such, that, when the knees are run back upon the carriage and the wings B are swung inward from a line with the face of the knees, the sweep G will extend in the rear of the depending finger I, and, as said knees are moved forward by the rotation of the shaft H, the sweep will engage said finger and raise and carry forward the bail F until itshall have passed its vertical center, when it will fall by gravity and swing the wings B forward in line with the face of the knees at the time when they are required to support the timber upon the carriage. The vibration provided for in the finger allows the sweep to swing past it as the shaft H-continues to rotate to carry the knees forward, until they reach the saw line or the log has been entirely sawed into lumber, when the parts will be in the position shown by solid lines in Fig. 2, so that a backward rotation of the shaft H will cause the sweep to again engage the depending finger and swing the bail F back to the position shown by dotted lines andretract the wings B, as will be well understood.

It will be seen, on referring to Fig. 2, that when the actuating bail F is thrown forward,

and the wings B are extended in line with the face of the knees, the point e of attachment of the rods E to the free end of said bail is below a right line through the points of attachment of said rods with the Wings and the hinge point '0 of the bail, thereby locking said wings in said extended position until said bail is raised. The extended ends of the pivotal rod 0, on which the bail is mounted, serve to support the connecting rods E when the bail F is thrown back to retract the wings, as shown in Figs. 2 and 3, and prevent said bail from dropping too far.

While we have shown the wings hinged to the sides of the knees, they may be otherwise mounted so as to be adj ustable for the pursat-nos ter of the claims contained in the said application of John Dumoulin.

Having thus fully set forth our invention,v

what we claim as new, and desire to secure by Letters Patent, is-

1. The combination with the carriage and knee, of the supporting wing hinged to the side of the knee in such manner as to swing horizontally into line with the face thereof to support the lumber at a point remote from the knee and the actuating brace rod pivoted at one end to said wing and movably attached at the other end to said knee.

- 2. The combination of the carriage and knee, of the movable supporting wings mounted on the knee to swing horizontally, and means for actuating said wings to simultaneously project their outer ends into line with the face of said knee remote therefrom and to retract'said wings from the plane of said line.

3. The combination with the carriage and knee, of the adjustable wings movable into line with the knee, the hinged bail, and the rods attached to said bail and to said wings.

4. The combination with the carriage and knee, of the adjustable wings, hinged to the sides of said knee at a point remote from the face of the plane thereof, and adapted to swing horizontally the hinged end of said wings being provided with a shoulder which engages with the side of said knee to stop or arrest the wings when the free end thereof is projected into line with the face of the knee.

5. In a saw-mill set works, the combination with the head blocks and knees, and means for retiring the said knees, of wings hinged to each side of the said knees, a frame pivoted to the rear end of the said knees, connecting rods pivoted at one end to the said frame and at the other end to the said wings, and means for turning the said frame about its pivots, to move the said wings to or from the log, substantially as described.

6. The combination with the carriage, of the movable knee having a rack on its under side, the movable wings, the set shaft having a pinion engaging said rack, and means connecting said shaft and wings for moving them simultaneously into and out of line with the face of said knee with the movement of said knee.

7. The combination of the movable knee having a rack, the set shaft carrying a pinion engaging said rack, the movable wings, the hinged bail, the coupling rods connecting said Wings and bail, the sweep on said shaft, and

- the finger on said rod depending in the path of said sweep.

8. The combination with the carriage and knee, of the wings consisting of rectangular frames hinged to the sides of said knee at a point remote from the plane of its face, their free ends adapted to swing horizontally out-t ward into line with the face of the kneein which position said wings stand at an angle to the plane of the face of the knee and recede from said plane to their point of attachment to the sides of the knee, and means for actuating said wings, substantially as specified.

9. The combination with the carriage and knee, of the supporting wing hinged to the W. H. BALL, W. F. WAITE.

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