US6521A - Machine for cutting out fellies - Google Patents

Description

back part of ditto.

UNITED STATES PATENT OFFICE. f

J. ADAMS A ND L. ADAMS, OF HADLEY, AND Lf: H. MOORE, OF LEVERETT;MASSACHUSETTS.

MACHINE FOR CUTTING OUT FELLIES.

Specification of Letters Patent No. 6,521, dated June 12, 1849.

T0 all whom z't may Concern Be it known that we, JOSEPH ADAMS, LEVI ADAMS, of Hadley, Hampshire-county, and State of Massachusetts, and LUTHER H. MOORE, of Leverett, county of Franklin and State of Massachusetts, have invented a new and useful Improvement in Machine for Cutting Fellies for Wheels, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure l is a vertical longitudinal section vof the machine at the line m of Fig. 2.

Fig. 2, is a top or birds-eye view of ditto, with the friction wheels or pulleys removed, their relative positions being represented by dotted lines. Fig. 3, is an elevation of the Fig. 4, is a side view of the lever or treadle for clamping the timbers from'which the fellies are cut.

Similar letters in the figures refer to corresponding parts.

The nature of this invention and improvement consists in securing to the upper end of a vertical shaft turning in boxes in a suit-able frame, a horizontal beam having adjustable cutters attached near its extremities at the required relative distance from the center of the shaft to correspond with the inner and outer curvative of the felly to be cut and causing said cutters to revolve over the timber fro-m which the fellies are to be cut, and gradually descend during their revolutions by means of bands, pulleys, friction wheels, screw shaft, levers, &c.; and cut the felly, and by means of the movementof a lever to reverse the movement of the screw shaft, and cause the cutters to ascend to their original positions to allow the operator to bring the timber forward for another cut.

To enable persons skilled in the art to make and use our invention we will proceed to describe its construction and operation.

A is the frame 'made of suitable size strength and material to contain and support the several parts for which it is designed.

B is an upright shaft, resting in a movable step at its lower end, and having a horizontal circular plate a, secured to its upper end, immediately below which is formed a hub b turning in a corresponding sized bo-x, for st-eadying the upper end of the axle during its revolution.

C is a horizontal beam secured betweenl projections formed on the upper surface of ythe circular plate. l D are angular metallic boxes having flanges on their sides, and secured to near the extremities of the beam, on opposite sides of the same, by means of oblong iron straps c passing around the beam and pressed against said flanges by screws d,

passing through female screws in the straps and resting, against oblong plates on the sides of the beam, opposite the boxes, in such a manner as to allow of the boxes being moved either farther from or nearer to the jupright shaft to accommodate them to the justed by screws e.

F is an upright shaft resting in a. step 4in the frame, and turning in a box secured to a vibrating beam or timber at it-s upper end and provided with a friction wheel or pulley f' at top and a series of unequal sized pulleys g below around one of which is passed a band l1, leading around a pulley z' on the vertical shaft B.

G is a lever having a step on its upper surface in which the shaft B rests, arranged below the frame and secured at one end to the front part of the same by a pin upon which it moves, and resting at its opposite end upon a similar lever j placed at right angles to the same, moving on a pin at one end, and connected to a cross head 7c moving between upright slides-or ways at the opposite end by a connecting rod Z, iron straps m, and oblong plates.

H is a vertical screw shaft passing through a female screw formed in the cross head, being rounded at its lower end, which turns in a corresponding formed opening or step, formed in a permanent iron block n, secured to the frame and supported near its upper end by a suitable box in the frame, and provided with a friction wheel or pulley 0 of smaller diameter than the wheel f, from which it derives its motion during the ascent of the cross head and parts attached.

I is an upright shaft resting in a step at its lower end, and turning in a box secured to a vibrating timber or beam above, and provided at top with a friction wheel or pulley p of smaller diameter than the last 'the end of the lever j, below the frame, andv having a weightt, suspended on its opposite end of suiiicient gravity to counterbalance the weight of the vertical shaft of cutters, and levers Gr, y', combined, and thus relieve the screw 0f part of the pressure bearing on the same, and prevent its too sudden wear.

K is the horizontal beam containing the boXes in which the upper ends of the upright shafts F, I, turn, resting on the upper horizontal timber of the frame and provided with tenons at each end which are inserted loosely into correspnding formed mortises, in the vertical posts of the frame and having cords attached to its ends, one of which u, passes over a pulley on one side of the frame, and sustains aV weight e, while the other passes over a similar pulley on the opposite side, and is attached to a lever w arranged on the side of an upright post, and moving on a fulcrum at one end in such a manner that by lowering said lever, the cross head containing the female screw, and the several parts attached to the same will be caused to ascend, and by raising the same, l

the weight will cause the friction wheels or pulleys to so engage together as to reverse the motion of the screw and force the cross head, &c., down.

Operation: When it is desired to cut a felly with this machine, the timber from which itis to be cut is placed on the table and is firmly secured by placing one end against the dog and clamping the opposite end by pressing it between the clamp and table, and the cutters are adjusted in such relative positions to each other, as to cause one to pass over the timber, in its revolution, outside the curvature of the intended felly, and the other 0n the inside curve of the same. Motion is then communicated to the machine by any convenient power, and the to below the pin 2, which will cause the W beam K and friction pulleys f, p, to be drawn back to their original positions, and the two larger pulleys f, o, to engage, and the motion of the screw to be reversed, so as to raise the cross head and its attachments, together with the vertical shaft of cutters, t0 the point from which they started, when the motion of thermachine is stopped, and the timber brought forward for another cut. In this manner the operation, is continued.

When it is desired to cut a larger sized felly, the dog and clamp may be placed in the openings in the table corresponding with the size wanted, and the cutters moved on the beam to adapt them to the purpose.

What we claim as our invention and desire to secure by Letters Patent is- The combination of the cutter-head and beam O, with the levers G, j; cross head c moving between upright slides and attached to the lever y' .by the connecting rod Z, iron straps m, and oblong plate; screw shaft H, passing through the cross-head, and provided with the friction wheel o, which is alternately thrown into gear with the fric.

tion wheels f, p, on the upper ends of the shafts F, I, by means of the horizontal beam-

Images