US368490A

US368490A - Geoege philion

Info

Publication number: US368490A
Authority: US
Publication date: 1887-08-16
Anticipated expiration: 1904-08-16

Description

(No Model.) 2 Sheets-Sheet 1.

G. PHI LION.

MANUFACTURE OF WOODEN PULLEYS.

No. 368,490. Patented Aug. 16, 1887.

PETERS, Photo-Lithographer, Wishingiofl, D Q

(No Model.) 2 Sheets-Sheet 2 G. PHILION.

MANUFACTURE OF WOODEN PULLEYS. No. 368,490. Patented Aug. 16, 1887.

PETERS. Phm-Lkho ra her, Washinglnn. D. c.

UNITED STATES ATENT Fries.

GEORGE PHILION, OF MISIIAIVAKA, INDIANA, ASSIGNOR TO THE DODGE MANUFACTURING COMPANY, OF SAME PLACE.

MANUFACTURE OF WOODEN PULLEYS.

SPECIFICATION forming part of Letters Patent No. 368,490, dated August 16, 1887. Application filed June ewe/semi No. 206,231. No model.)

To all whom it may concern:

Be it known that I, GEORGE PI-IILION, of Mishawaka, in the county of St. Joseph and State of Indiana, have invented new and useful Improvements in the Manufacture of Wooden Pulleys; and I do hereby declare that the following is a full and accurate description of the same.

In the manufacture ofwooden pulleys it has been customary to build up the pulley-rim from narrow segments having the curvature of the perimeter of the intended pulley and a length equal to one-quarter or a less equal division of said perimeter. These segments are cut from planks or boards of thickness proper to constitute the desired width of pulley-face, with a considerable number of said segments fastened side by side, and with the end joints breaking or lapped. In the process of putting said segments together heretofore they have been secured to each other by glue and nails. This method isinconvenient, defective, and costly. It is inconvenient and costly because it takes much time and many nails, and it is defective because nailing does not secure sound and good joints, especially at the abutting ends of the segments. The nails, being unequally distributed, disturb the balance of the pulley, and are liable to be encountered by the turning-tool, to: the mutual disadvantage of workman, tool, and pulley. My improvement in the process of building wooden pulleys obviates these practical objections to the method of construction practiced before my improvement. I first unite a proper number of said segments at their ends to constitute a complete ring capable of being handled as an entirety. This secures sound and close joints at the abutting ends of said segments, which is a matter of importance with reference to the strength and balance of the pulley, and afterward said rings I arepiled one upon another,with glue between,

and subjected to heavy pressure until the glue has become set and hard. To efficiently unite the abutting ends indicated, I apply glue and press them firmly together until the same has become set and hard. Rings ofsmall diameter for small pulleys do not require the application of any power greater than that of the workmanshands. They may be glued, pressed together, and then carefully lifted and laid aside until the glue hardens. Larger rings for larger pulleys require to be clamped together, because they cannot be supported in position in the hands alone while being transferred from the assemblingtable to the drying place. For this purpose a great variety of clamping devices may be employed, ranging from the string to an elaborate scroll or screw-chuck. Therefore I do not limit myself to the use of' any clamping device whatever.

Figure 1 represents the manner of laying out and cutting the segments from the plank. Fig. 2 represents the manner of uniting the segments by nailing, as heretofore practiced. Fig. 3 represents the perspective of one of my rings completed, with ends glued together. Fig. 4 represents in perspective one of my blank rims composed of a number of my rims fastened together with glue without nails. Fig. 5 represents the clamp-rings, whereby the sections are cramped while being glued.

My segments A are cut from suitable boards in the usual way. Their ends are then coated with glue, and they are laid upon a fiat table in proper end contact with each other and the ends firmly pressed together. If the rings so constituted are of small diameter, they maybe lifted by the hands while still firmly pressed together and held in position and laid away upon another fiat table or shelf, there to remain until the glue shall have hardened and set. This requires about half an hour, after which they may be piled or otherwise packed away until wanted. If therings are too large in diameter, or composed of too many seg ments to permit the handling of them by the hands unaided, then, after being properly glued and assembled, as above stated, a circumferential clamp of some convenient kind is to be applied. This clamp may consist of a hoop, B, of wire or sheet metal, its ends being provided with a device for drawing them together to tighten the strap around the ring-t'or instance, such a device as is shown in Fig. 5 or it may be constructed in some other known and suitable way.

Vhen the rings are assembled to constitute the pulley, the rings are first coated with glue, and are then piled one upon another, with the segments arranged to break joints, and the whole subject to the action of a press, to force constitute individual rings I capable of being the rings into close contact over all their conhandled as entireties, and, second, in assemtiguous surfaces. This secures solid joints bling a proper number of said rings with glue throughout without the use of nails. between and subjecting the whole to heavy 5 Having described my invention, I claim as pressure until the adhesive hassolidified, sub- I 5 newstantially as and for the purpose set forth.

The herein-described improvement in the GEORGE PHILION. process of constructing wooden pulleys, which Witnesses: consists, essentially, first, in uniting a proper W. B. HosFoRD, IO number of segments at their abutting ends to M. W. MIX.