US981833A - Safety appliance for centrifugal wringers. - Google Patents

Description

F. L. BAXTER.

SAFETY APPLIANCE FOR GENTRIFUGAL WRINGERS.

APPLICATION FILED 111111.21, 1910.

981,833, Patented Jan.17, 1911.

3mm g Fve dev-lc L .BaXTer' yd mam/V. 64 10611211 rod of the same.

' l "'TES ATEEN- SAFETY APPLIANCE FOR CENTRIFUGAL WRINGERS.

Specification of Letters Patent.

Patented Jan. 17, 1911.

Application filed March 21, 191). Serial No. 550,625.

To all whom it may concern:

Be it known that I, FREDERIG BAXTER, a citizen of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Safety Appliances for Centrifugal Wringers; and'l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in safety appliances for centrifugal wringers, and its object is to provide an improved hinged cover for such wringers; to provide improved means for preventing the opening of the cover when the machine is running; to simplify the device, and to provide the same with various new and usefulfeatures hereinafter more fully described and particularly pointed out in the claims.

My invention consists essentially in the improved construction of the cover, and in the combination and arrangement of the cover and belt shifter, whereby the cover will not stay opened until the belt is shifted to the loose pulley and the belt may be so shifted without opening the cover, as will more full appear by reference to the accompanying rawings, in which:"

Figure 1 is a side elevation of a centrifu al wringer with m improvement ap- -p ied thereto, shown with the cover closed, and the belt shifted to the "tight pulley; Fig. 2 a portion of the same showing the belt shifted to the loose pulley and the cover opened; Fig. 3 a plan view of my improved cover; and, Fig, 4 an enlarged detail of the same shown in vertical section.

Like numbers refer to like parts in all of the figures.

1 represents the usual form of centrifugal wringer; 2 the driving belt for the same; 3 the loose pulley; e the tight pulley; 5 the arms of the belt shifter; 6 the handle of the belt shifter; and 7 the longitudinallyslidable These parts are so arranged that the handle 6, when the belt is shifted to the tight pulley, will project over the rear of the cover 8 to such an extent that the said cover will engage the same before it is turned to a vertical position, and thus the cover will'fall back to closed position b gravity if opened. The length of the rod is such that when the belt is shifted tothe loose pulley 3, the handle ,6 will "be moved back away from over the machine sufficient distance to permit the cover to be opened slightly beyond the vertical position and rest against the handle in this i open position. The handle thus afi'ords asafety stop to prevent the cover from remaining open when the machine is running, and also a substantial support for the cover when the machine is not running and the cover is opened.

The structure is also much simplified for that no additional parts are required to be attached to either the cover or the belt shifter. Y A My improved cover as represented in Figs. 3 and 4, comprises a ring 9 preferably made of round rod or wire and provided with a straight or chordal portion 10 of the full width of the hinge part. A woven wire structure convex in form as at 8 is secured to this ring 9 by bending the ends of the wires -of said structure around the ring and forms a very satisfactory and substantial cover.

The hinge for the cover also comprises a plate 11 having a. series of arms 12 spaced apart and turned around the .chordal or straight portion 10 of the ring 9, thus forming a very substantial and simple hinge for the same.

The construction of the cover herein shown is not herein claimed but is reserved for. a separate application in accordance with a re uirement of division.

at I claim is 1. A safety appliance for centrifugal wringers, comprising a hinged cover adapted to project within the path of the belt shifter when said cover is" opened and the belt shifter movable independently of the cover projecting above the cover when shifted to running position to engage the cover and prevent the same from remaining open and supporting the cover in open position when shifted to non-running position.

2. A safety appliance for centrifugal wringers, comprising a v shifter having a slidable rod movable independently of the cover, directly cover and carrying a handle adapted to project over fore the cover is raised to a vertical position, and adapted when shifted-to engage and support the cover in open position when the same is turned beyond the vertical position.

3. A safety appliance for centrifu wringers, comprising a hinged cover'an hinged cover a belt behind the the cover and engage the same-bebelt shifter movable independently of the cover adapted when in running position to project over the cover and engage the same efore said cover is raised to a vertical Osif 5 tion, and when shifted-to stop the ma e permits the cover to pass the vertical position and also engages and supports the same in open position.

4. A safety appliance for centrifugal 10 wringers, comprising a tight and loose pulley, a driving belt, a, belt shifter having a slldable rod, a, hinged cover beneath the rod loose pulley and the cover opened up, en-

gages and supports the cover.

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

FREDERIC L. BAXTER. Witnesses:

GEORGIANAiGHACE, MINNIE THoMrsoN.

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