US566082A

US566082A - Wood-planing machine

Info

Publication number: US566082A
Authority: US
Publication date: 1896-08-18
Anticipated expiration: 1913-08-18

Description

(N0 Mudel.)

G. T. LAWRENCE & H. R. TILLISON. WOOD PLANING MAGHINB.

No. 566,082. Patented Aug. 18, 1896.

- To aZZ whom it may concern:

Be itknown that we, GEORGE T. LAWRENCE,

of New York, county of New York, State of New York, and HosEA'R. TILLISON, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in WVood-Planing Machines,of which the foll0wing description, in connection with the ac- .companying drawings, is a specification, like letters on the drawings representing like parts.

In planingmachines as at present constructed it is the common practice to builda fixed bonnet over the upper cutter to catch the chips thrown ofi by the cutter, said bonnet having an outlet connected with a pipe or spout leading to a distant point. henever it is necessary to reach the cutter-knives for adjustment, sharpening, or otherwise, the bonnet must be bodily removed, entailing much inconvenience and loss of time. To render the cutter more accessible, this present invention comprehends an inclosing bonnet, preferably formed in a single casting and supported at one side on hinges to enable it to be quickly and easily turned back to expose the cutter.

Figure 1 of the drawings represents in section a portion of a planin g-machine, sufficient to enable our invention to be understood; Fig. 2, a perspective detail of the bonnet detached; and Fig. 3, adetail view, looking at the outside of the stand, showing one man ner of supporting the cutter-bearings, chipbreaker, &c.

Referring to the drawings, A represents a bed or frame upon which, at opposite sides, are erected two like stands a, only one of which is herein shown, said stands constituting supports for the bearing-boxes b, in which is journaled the upper cutter B, all of which I are and may be of a construction common to machines of this class.

In the machine illustrated each bearingbox I) has pivoted to it at b a curved arm b reaching over the box and forked at its free end to form a guideway c for the reception of a projecting ear e on the end of the chip- UNITED STATES PATENT OFFICE.

GEORGE LAXVRENCE, OF NEW YORK, N. Y., AND HOSEA R. TILLISON,-OF

BOSTON, MASSACHUSETTS, ASSIGNORS TO THE S. A. FOODS MACHINE COMPANY, OF BOSTON, MASSACHUSETTS.

WOOD-PLANING MACHINE.

SPECIFICATION forming part of Letters Patent No. 566,082, dated August 18, 1896.

Application filed. .Tune 2, 1894. Serial No. 513,276. (No model.)

breaker C, said chip-breaker being horizontally adjustable in said guideway c, and held in adjusted position bya usual screw 0.

D is the inclosing bonnet, (shown by dotted lines, Fig. 1, in its position covering the upper cutter B and in full lines turned back to expose the cutter,) said bonnet being preferably rectangular and somewhat pyramidal in, shape, i. 6., having its sides or ends made inclined, and provided with an outlet at at or near its top adapted to be connected to a suitable pipe or spout (shown by dotted lines, Fig. 2) to convey the chips to a distant point.

The bonnet D, preferably cast in a single piece, as shown, is, in accordance with this present invention, hinged at one side (herein shown its rear side) to a suitable support (shown as the chip-breaker C) provided for that purpose with upwardly-extended ears 0 to which are jointed at c the ears d on the rear of the bonnet. ing position of the bonnet is as shown by dotted lines, Fig. 1, and in full lines in Fig. 2, the chips thrown off by the upper cutter being directed by the inclined sides or ends of the bonnet to and finding their exit through the outlet-opening d. When it becomes necessary to reach the cutter-knives, the bonnet is turned on its hinges into the full-line position, Fig. 1, leaving the cutter fully exposed .and easily accessible. The bonnet in the meantime is held by its hinges and must of necessity return to its correct adjusted position when the bonnet is turned down, as in Fig. 2.

No adjustment whatever is necessary for the bonnet when once properly set, for any adjustment of the chip-breaker, which must take place with every change in the cutterknives automatically through its hinges c d, carries the bonnet also into proper position.

So far as we know, we are the first to provide an inclosing bonnet rectangular in shape, 1'. 9., having four inclosing walls,'all of which lead to a suitable outlet-opening, which bonnetis hinged to a suitable support, preferably a chip-breaker, as shown, whereby, when in its normal position, said bonnet cov- The ordinary workers and substantially incloses the upper cutter,and which,when necessary,may be turned back on its .hinges to expose said cutter.

Heretofore it has been necessary to send for a sheet-iron worker to rig up a fixed bonnet over the cutter after the machine has been set up in working position; but with our improved bonnet nothing is necessary but to connect a simple pipe to the outlet d.

We claim 1. In a planing-machine, the combination with the upper cutter, of a chip-breaker adjustably mounted in bearings, said bearings being pivoted eccentrically to the bearings of said cutter, and a bonnet hinged to said chipbreaker having its hinge-axis parallel to the edge of said chip-breaker and also to the axis of said cutter, whereby said bonnet may be freely swung back on its hinges away fromv said cutter and whereby adjustment of said chip-breaker correspondingly adjusts said bonnet, substantially as described.

2. In a-planing-machine, the combination with the upper cutter, of a chip-breaker adjustably mounted in bearings, said bearings being pivoted eccentrica-lly to the bearings of said cutter on the opposite side of its journal from said chip-breaker, said chip-breaker being arranged for independent adjustment at either end to and from said cutter in guideways provided therefor in said bearings, and a bonnet hinged to said chip-breaker having its hinge-axis parallel to the edge of said chipbreaker and also to the axis of said cutter, whereby said bonnet may be freely swung back on its hinges away from said cutter, and whereby adjustment of said chip-breaker cor-- respondingly adjusts said bonnet, substan-' tially as described.

3. In a planing-machine, the combination with the upper cutter, of a chip-breaker adjustably mounted in bearings, said bearings being pivoted eccentrically to the bearings of said cutter, on the opposite side of its journal from said chip-breaker, and means for adjusting said bearings about said pivots, said chip-breaker being arranged for independent adjustment at either end to and from said cutter in guideways provided therefor in said bearings, and a bonnet hinged to said chipbreaker having its hinge-axis parallel to the edge of said chip-breaker and also to the axis of said cutter, whereby said bonnet may be freely swung back on its hinges away from said cutter and whereby adjustment of said 1 ing arranged for independent adjustment at either end to and from said cutter in guide ways provided therefor in said bearings,-and

a bonnet hinged to said chip-breaker at either end thereof having its hinge-axis parallel to the edge of said chip-breaker and also to the axis of said cutter, whereby said bonnet may be freely swung back on its hinges away from said cutter and whereby adjustment of said chip-breaker correspondingly adjusts said bonnet, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

GEORGE T. LANVRENOE. HOSEA R. TIIJLISON.

WVitnesses for G. T. Lawrence:

ROBERT A. PIPER, RIcHD. F. JoNEs.

Vitnesses for H. R. Tillison:

FREDERICK L. EMERY,

M. J. SHERIDAN.