US 660022 A
Description (OCR text may contain errors)
Patnted Unt. I6, |900.
No. @mm2 H. M. MCGASKILL.
(Appiicationled Max'. 7. 1900.)
HUGH M. MCOASKILL, OF ANTLER, NORTH CAROLINA, ASSIGNOR OF ONE- HALF TO JOHN W. MCOASKILL, OF SAME PLACE.
SPECIFICATION forming` part of Letters Patent No. 660,022, dated October 16, 1900. Application led March 7, 1900. Serial No. 7.701. (No model.)
To @ZZ whom t may concern/.-
Be it known that I, HUGH M. McOAsKILL, a citizen of the United States, residing at Antler, in the county of Moore and State of North Carolina, have invented a new and useful Sawmill Attachment, of which the following is a specication.
This invention relates to indicators; and the primary object is to provide a device of 1o this character particularly adapted for use in connection with a sawing-machine, whereby the operator of such machine mayindicate to the person who receives the lumber, after it passes through, the lengths into which such i5 lumber is to be cut.
Heretofore it has been the custom of the opera-tor to call out to the assistant who receives the lumber cut by the machine the lengths into which such lumber is to be cut.
2n On account of the noise made by the machinery the instructions are often misunderstood and mistakes `made, causing serious loss. These difticulties are entirely avoided by means of this device, which is arranged conveniently to the operator of the machine and will clearly indicate to the assistant the lengths into which the operator desires the lumber to be cut.
The preferred construction of my invention 3o is described in the following specification and shown in the accompanying drawings, in which- Figure 1 is a perspective view of a portion of a sawing-machine, showing the indicator 3 5 applied thereto. Fig. 2 is an elevation of the obverse side of the indicator. Fig. 3 is an elevation of the reverse side. Fig. 4 is a vertical section on the line X X of Fig. 3. Fig. 5 is a side elevation of the reverse side of 4o the casing with the rotary indicator-disk removed. Fig. 6 is a side elevation of the obverse side of the indicator-disk.
Like reference-numerals refer to like parts throughout the several figures.
As shown in the drawings, the indicator comprises two parts-a circularcasing 10 and a rotatable indicator-disk 11. The casing 10 comprises a face-plate 12, which is fiat on its outer surface and is provided on its opposite 5o side with an annular peripheral rim or ange 13. Formed in the upper portion of the facewhich on the inner plate is an opening or window 14E, which is covered by a i glass or similar transparent substance 15. The face-plate is further provided with a central bolt-opening 16, around side is the circular de pression or socket 17. Projecting from the lower edge of the casing 10 is a supportingstaff, by means of which the device may be fastened in a vertical position to the frame 6o of a sawing-machine. As shown in Fig. 1 of the drawings, the indicator is supported by the statt in a convenient position to the operator near the operating-levers of the machine. 6
Rotatably mounted in the casing 10 is the indicatordisk l1, which fit-s loosely within the annular peripheral ange 13, the exposed side of said disk being flat and liush with the face of the flange. The disk 11 is 7o also provided with a central bolt-opening 1S, which alines with the opening 16 of the casing. Through the two openings 1G and 1S passes the headed bolt 19, by means of which the disk is rotatably mounted upon the casing 10. Upon one face of thedisk around the central opening 1S is provided the circu lar boss 20, that fits in the socket 17 of the casing, and said boss is slightly thicker than the depth of the socket 17, so that when in posi 8o tion the inner face of the disk is held away from the adjacent face of the casing. This inner face of the disk is provided near the outer edge with an annular series of indicating characters, preferably gures, arranged in such a manner that when the disk is rotated the characters will pass in succession behind the window 111, only one character being visible at a time through said window. Fastened to one side of the flange 13 is the an- 9o nular retaining-ring 21, the inner edge of which projects over the edge of the disk 11, and thereby assists in holding said disk in place and prevents its wabbling. The face of this ring is provided with a series of characters similar to that on the disk, and so arranged that When the pointer 22, which is carried on the outer face of the disk 1l, is fixed at one of the characters on the retaining-ring asimilar character will be displayed loo through the window 14 of the casing.
The pointer 22 comprises a spring-pressed ranged around the inner edge of the retain-` ing-ring, one notch being arranged directlyv under each of the indicating characters. By these means the disk is held securely at the desi red character and will not be accidentally displaced by the jar ot the machinery.
In the applied position the outer face of the casing, which is provided with the Window,
is arranged toward the assistant,who receives the lumberand cuts it intolengths. In operation if, for instance, the operator desires the lumber cut. in lengths of thirteen feet he moves the pointer 22 around until the end of the bolt engages in the notch directly under that number, whereupon the number 13 Will be displayed to the assistant through the Window 14.
It will thus be seen that this construction affords an eiiicient device that will indicate to the Workmen the length into Which the lumber is to be out. Furthermore, When adjusted the indicator-disk is not liable to be accidentally displaced by the jar of the machinery. A still further advantage lies in the construction of the indicator-disk, Whereby that portion carrying the display characters is held away from the inner face of the casing, thus preventing the rubbing or erasing of said characters by the rotation ot the indicator-disk.
It is to be understood that this invention is not to be limited to use in saWmills only, as it is evident that it maybe used with equal advantage in a variety of other Ways. Nor is the invention to 'be limited to the exact construction shown, as changes in the form, proportion, size, and minor details of construction may be resorted to Within the scope of the appended claims without departing from or sacrificing any of the advantages of the invention.
Having now fully described the invention,
vwhat I claim as new, and desire to secure by Letters Patent, is-
1. In an indicator, the combination with a stationary member having an opening, of a :movable member mounted upon the stationary member and carrying a plurality of display characters adapted to be exposed through said opening, said stationary member being also provided with a projecting rim, one vedge of which has series of locking? notches, and a locking device carried by the movable member and adapted to engage said notches, said locking device forming an operating-handle for the movable member, substantially as described.
2. In an indicator, the combination with -a casing having an opening, of an indicatordisk rotatably mounted in said casing and 'carrying a series of indicating characters adapted to be exposed through the opening in the casing, a retaining-ring arranged at one side of the easing and projecting over the edge of the indicator-disk, said ring carryinga series of indicating characters, and a pointer carried by the indicator-disk, said pointer having means for locking the indi- Gator-disk at any display character desired, substantially as described.
3. In an indicator, the combination with a casing provided with an opening having an annular ring, of a supporting-staff for said casing, an indicator-disk rotatably mounted Within said casing and carrying a series of indicating characters upon its inner face, said characters being adapted to be exposed through the casing-opening, means forholding the face of the indicator-disk carrying said display characters away from the adja- ,cent face of the casing,a retaining-ring fastened to the annular rim and projecting over the edge of theindicator-disk, said retainingring carrying a series of display characters and having aseries of notches corresponding in number to the display characters, and a spring-pressed bolt, carried by the indicatordisk and adapted to lock in the notches of `the retaining-ring, substantially as described.
In testimony that I claim the foregoing as my own I have hereto afxed my signature in the presence of two Witnesses.
HUGH M. MGCASKILL. Witnesses:
JOHN W. MCCASKILL, W. A. MILLS.