US1487082A - Spring-retaining device - Google Patents

Description

I R. E. WOLTKAMP 1 SPRING RETAINING DEVICE Filed Jan. s, 1923 Wl'l'NE S: A'ITORNEY Patented Mar. 18, 1924. I I I I ,437,082 i warren STATES PATENT caries. I

ROY E. WOLTKAMP, OF KANSAS CITY, KANSAS.

SPRING-RETAINING DEVICE.

Application filed January 3, 1923. Serial No. 610,480.

To all whomrz't may concern: inner edge which forms a central opening Be it known that I, RoY E. WOLTKAMP, a for receiving the valve stem. The upper citizen of the United States, residing at half of the opening is of less diameter than Kansas City, in the county of Wyandotte the lower half so that this upper part will a and State of Kansas, have invented new and engage the circular groove 9 in the valve 50 useful Improvements in Spring-Retaining stem. A seat is formed on the under face Devices, of which the following is a specifiof the device for the upper end of the spring. cation. I This device is particularly designed for This invention relates to a spring retainuse on tractors and motors which use very ing device, the general object of the invenstrong valve springs. The stem looks or 55 tion being to provide means whereby the dewashers of these springs soon wear out but vice can be easily and quickly placed upon a with my device the wear is evenly distributvalve stem or removed therefrom and the ed so that the device lasts for a longtime. parts of which are permanently fastened to- By making the device of two pieces hinged gether so that there is no danger of losing together it can be easily and quicklyplaced Q or misplacing a part. I on the valve stem and removed therefrom. Another object of the invention is to so The spring holds it in place. I form the device that the wear of the spring It is thought from the foregoing descripis equalized. tion that the advantages andnovel features 29. This invention also consists in certain of my invention will be readily apparent. 65

other features of construction and in the I desire it to be understood that I may combination and arrangement of the several make changes in the constructionand in the parts, to be hereinafter fully described, ilcombination and arrangement of the several lustrated in the accompanying drawings and parts, provided that such changes fall specifically pointed out in the appended within the scope of the appended claims. 7

claims. What I claim is In describing my invention in detail, ref- 1. A spring retaining 'devicecomprising erence will be had to the accompanying a pair of members hingedly connected todrawings wherein like characters denote gether and each member having a semi-cirlike or corresponding parts throughout th cular notch in its inner edge for receiving 75 several views, and in which Y I the valve stem, said notches -having semi- Figure 1 is a fragmentary sectional view annular shoulders for engaging the groove through part of'an internal combustion moin the stem.

tor showing the invention in use. 2. A valve stem lock comprising a pair of Figures 2 and 3 are detail views of the demembers hingedly connected together and 80 vice itself. each member having a semi-circular notch in In these views 1 indicates a part of the its inner edge for receiving the valve stem, cylinder head, 2 the valve stem, 3 the guide said notches having semi-annular shoulders of the same and 4 the spring. The improved for engagingthe groove in the stem and a device is shown at 5 and consists of a circuspring seat formed on the lower face of said 8 lar member composed of two halves, each members so that the pressure of the spring half having a pair of ears 6 thereon which will hold said members on the stem. are pivoted together by the pins 7 so that the In testimony whereof I aflix my signature. two halves are hingedly connected together. I i Each half has a semi-circular notch 8 in its ROY E. WOLTKAMP.

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