US1117291A - Dust-guard. - Google Patents

Description

L. Y. WILLIAMS.

DUST GUARD.

APPLICATION FILED 0019,1913.

Patented Nov. 17, 1914.

LAGEY Y. WILLIAMS, OF TOLEDO, OHIO.

DUST-GUARD.

Specification of Letters Patent.

' Patented Nov. 1t, 1914.

Application filed October 9, 1913. Serial Ne. 794,292. H v I To all whom it may concern Be it known that I, LACEY Y. 'Wnmus, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Dust-Guards, of which the following is a specification.

The invention appertains to dust guards,

such as generically disclosed in Letters Patent issued to me on October 18, 1910, Nos. 973,462 and 973,463, and on February 13, 1912, No. 1,017,277, the object being to improve the guard so the wood will not split and to render the same more durable" and efiicient in operation. I

The invention consists in certain novelties of construction and combinations of parts as herein set forth and claimed.

The accompanying drawing illustrates a guard with the improvements embodied therein and constructed according to the best mode of procedure I have so far devised for the purpose.

Figure 1 is a vertical sectional view of a journal box and my improved dust guard in the chamber at the back end ofthe box and a journal in elevation view. Fig. 2 is a perspective view of the guard removed from the chamber. Fig. 3 is a view of one reinforcing bar and one spring removed from the guard.

The guard comprises two complemental L-shaped sections A, A, each having a long arm B and a short arm C, and fashioned at one edge to have a semicircular surface D, the edges of both halves of the guard be ing adapted to bear against and fit the dust guard bearing surface E back of the journal end F when the said halves are united and inserted within the chamber G at the rear end of the journal box H, as shown by Fig. 1.

To prevent the wood of the guard splitting on the lines ww, where the grain is straight and the guard relatively weak,

when the same is subjected to strains by the movements of the journal, I cut a shallow channel I in the body of the wood of each half of the guard and insert a bar J within each channel and secure them in place by rivets K passed through the wood and the bars, as shown. The ends of the said bars L, L are extended far enough to pass through slots M formed in the long arms of each half of the guard, which slots are each of greater length than the width of I a bar end L so' the halves of the guard can.

move toward and away. from each other to take up wear and alsb toallow the passage of the journal collar when the journal is inserted in the box.

The spring means of the guard against the bearing .at the rear of the. journal comprises two helical springs N, N of relatively high capacity, each seated within a groove 0 formed in the outer edge of a long arm, one end of each spring being fastened to the long arm by a nail or screw P and the other end secured to the projecting 'end L of a reinforcing bar by passing the free end of the spring around the bar, as shown, or otherwise attached thereto.

for forcing each-half i Obviously, I have produced an improved guard which is very durable and will not split and become inoperative, owing to the presence of the reinforcing bars, which lat ter perform the additional function of holding the two halves of the guardin the same plane so the edges will engage the dust guard bearing under all conditions of service. I

What I claim is:

A dust guard consisting of two complemental L-shaped sections, each sectionv having a long arm B with a closed slot M, a short arm C, a semicircular bearing edge D, and a reinforcing bar J secured within a slot in the end of the section opposite the semicircular edge D, and said bar provided with a projecting end; said sections being oppositely disposed to each other to form a circular opening and the projecting end of each bar J being located and movable within the closed slot M in an adjacent long arm B; and helical springs, each spring secured at one end to a section and the opposite end secured to the projecting end of the reinforcing bar of the opposite section; the said bars J J strengthening the sections against splitting on lines 00,-a2, and should splitting take place holding the parts in their proper relative positions and preventing displacement thereof.

In testimony whereof I aflix my signature in presence of two witnesses.

LACEY Y. WILLIAMS.

' Witnesses:

M. H. LOUGHLIN, ANNETTA B. WYLIE.

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