US462185A

US462185A - Sand polishing-machine

Info

Publication number: US462185A
Authority: US
Publication date: 1891-10-27
Anticipated expiration: 1908-10-27

Description

(No Model.) 3 Sheets-Sheet 1. J. D. WILSON & W. J. DELANO. SAND POLISHING MACHINE.

No. 462,185. Patented Oct. 27, 1891.

(No Model.)

3 Sheets-Sheet 2. J. D. WILSON & W. J. DELANO.

SAND POLISHING MACHINE. No. 462,185. Patented Oct. 27, 1891.

(No Model.) 3 Sheets-Sheet 3.

J. D. WILSON & W. J. DELANO.

SAND POLISHING MACHINE. No. 462,185. Patented 001:. 2'7, 1891.

NITED STATES PATENT Fries.

JAMES D. \VILSON AND IVILLIAM J. DELANO, OF EDWARDSVILLE, ILLINOIS, ASSIGNORS TO THE N. O. NELSON MANUFACTURING COMPANY, OF ST.

LOUIS, MISSOURI.

SAND POLISHING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 462,185, dated October 27, 1891.

Application filed May 22, 1891. Serial No. 393.774. (N model.)

T0 (11 whom, it may concern.-

Be it known that we, JAMES D. \VILSON and WILLIAM J. DELANO, of Edwardsville, Illinois, have jointly made a new and usefulImprovement in Sand Polishingfllachines, of which the following is a full, clear, and exact description.

The present improved machine is well adapted for hollow or other work having intezo rior parts to be polished.

Another feature of the machine is its adjustableness, whereby provision is made not only for operating upon objects held at a higher or lower level, but also in different parts of the room containing the machine, all, together with minor features of the construction, substantially as is hereinafter described and claimed, aided by the annexed drawings, making part of this specification, in which Figure 1 isa side elevation of the improved machine. The view includes a sample of the work operated upon by the machine; Fig. 2, aplan of the machine; Fig. 3, a side elevation of the machine, but as when reversed from its position of Fig. 1; Fig. 4, a vertical crosssection on the line A i of Fig. 1; Fig. 5,aview similar to that of Fig. 1, illustrating the vertical adjustment of the polishing-belt at the outer end thereof; and Fig. 6, a detail upon 0 an enlarged scale, illustrating the relative position of the belt and the work during the polishing operation.

The same letters of reference denote the same parts.

The machine under consideration, generally considered, comprises a base A, supporting bearings B B; a shaft O, which is journaled in said bearings and is provided with a fast andaloose pulley D D; an arm E, journaled at e 6' upon said shaft 0 and extending thence outward therefrom and carrying a small pulley F at its outer end and having a lateral offset 6 to enable said pulley Fto be in line with alarger driving-pulley G, which is mounted upon said shaft 0; a sand polishingbelt l L'which is carried around said pulleys G F, and a support I for said arm E toward the outer end thereof. Said arm E is made extensible, as indicated at 6 to enable the outer portion a to be set outward from or drawn in toward the inner portion 6 of said arm according as it may be needed to suitably tighten the belt H upon its bearing. It (the arm E) can also be turned upon the shaft 0, as indicated by the arrows y, to and from its positions shown, respectively, in Figs. 1 and 3 In either of said positions the support I serves to uphold the outer end of the arm; but said support is connected with said arm at a point "6 far enough inward from the position of the pulley F to provide ample room for operating the part which is being polished by the belt. To enable the support I to be used in either of said positions of the arm E, it is constructed substantially as follows: a" represents a block of any suitable form for supporting the arm E. In the present instance said arm extends through a notch i in the block, and a keeper r' is applied to the block 1" to confine the arm E therein. This block t" at its sides, respectively, is provided with journals upon which the legs 1' i and the support I are hung and in such a manner as to enable said legs to be turned from their position of Fig. 1 into their position of Fig. 3. Said blocks 1'' also sustain a pulley J, which is an additional support for the belt H in the vicinity of the point at which the Work to be polished is applied to the belt. Said pulley J is journaled in a bearingj, which in tnrnis secured to said block 1'. An additional feature of said support I is its vertical adjustableness. To this end the legs t 1 as indicated at 6 are adapted to be lengthened or sh ortenedthat is, if it is desired to present the work K at a higher level to the belt the legs 2'" i are lengthened, by which means the arm E is turned upward upon its bearing O, and when it is preferred to hold the work K at a lower level the legs 6 71 are shortened, by which means the arm E is turned downward upon its bearings C. These last described adjustments are indicated, respectively, by the broken and by the full lines in Fig. 5. A l

A mode of operating the present machine is indicated in Fig. l and illustrated in Fig. 6. Motion having been imparted to the belt H by means of power applied, to the pulley D, and the outer end of the arm E being ad- 100 justed as to position and height, the work say the seat Kis presented to the projecting portion of the belt, as indicated in Fig. l, and then slipped thereonto and ultimately adjusted, so that the beveled edge 70, inclosing the opening 70 therein, is applied to the belt substantially as shown in Fig. 6t-hat is, so as to bear upon the belt at a point between its supports F J. In this position of the seat that portion of the edge 7a which for the time being is being polished is pressed against the belt, so as to bend the same, substantially as shown in Fig. 6, and cause the entire bevel of said edge 76 to be subjected to the action of the belt. That portion of the edge, there fore. which is subjected to the action of the beltis readily polished, and owing to the me tension of the arm E and the manner in which the belt is carried around the extension the Work can be turned around the belt and extension and all parts of the edge surrounding the opening k be subjected to the action of the belt and the operation effectively and rapidly performed. As work of the kind un der consideration is of a more or less bulky nature, it is occasionally desirable, after operating in one part of the room containing the machine, to be able to operate in another part of the room without delaying to clear away the work which has already been operated upon. In such an event it is the practice to reverse the belt and its support from its position shown in Fig. 1 into its opposite position shown in Fig. 3 and in the last named position to proceed at once with a fresh lot of material. This described ad j ustment is also of value in handling the work into and out of bulky receptacles, such as crates, in which it is the custom oftentimes to transport such goods. In thus changing the position of the arm and belt with relation to the base A the block t" is rotated on the arm E, and the legs i t' are turned upon their journals to enable the support I to assume its position shown in Fig. 3.

\Ve claim-- 1. In a sand polishing-machine, the combination of the shaft 0, the arm E, the pulleys F G, the belt, and a support for said arm toward the outer end thereof and said arm being reversible, substantially as described.

'2. In a sand polishing-machine, the beltarm projecting outward beyond its support and having the sanding-belt carried around a bearing at the outer end of said arm, the upper and lower portions of said belt, at and in the vicinity of said bearing, being parallel or approximately parallel to adapt the same to hollow work, substantially as and for the purpose described.

3. The belt-supporting arm E, reversible upon its bearing 0 andhaving its outer end supported upon a vertically-adj nstable support, substantially as described.

Witness our hands this 9th day of May, 1891.

JAMES D. WVILSON. WILLIAM J. DELANO.

Witnesses:

T. L. GAERTNER, EDWARD GAERTNER.