US1658403A

US1658403A - Valve-spring retainer

Info

Publication number: US1658403A
Application number: US195703A
Authority: US
Inventors: Boyer Asberry
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-06-01
Filing date: 1927-06-01
Publication date: 1928-02-07
Anticipated expiration: 1945-02-07

Description

VALVE SPRING RETAINER Filed June 1, 1927 ln'uentor wgzwlwam Attorng' Patented Feb. 7, 1928.

UNITEDSTATES ASBERRY Bevan, or CANTON, MISSOURI.

VALVE-SFIRING RETAINER.

Application filed June 1,

This invention relates to new and useful improvements in combustion engine valves of the poppet type and has more particular reference to a retainer for the usual com- 5 pression springs thereof. In carrying out the present invention there is provided a highly novel, simple, and extremely inexpensive retainer that is so constructed as to permit of its ready association with or removal from 10 the valve stem, and that will not prevent the passage of the 'oil up the stem which is the great disadvantage of the cup and washer retainers now in use. It is well known that such cups and washers now provided for retaining valve springs will positively prevent the free flow of oil up the valve stems resulting in the same sticking withinthe usual guides.

In the drawing wherein like reference characters lndicate corresponding parts throughout the several views:

Figure 1 is'a side'elevation of a poppet valve over the lower end of whiclris disposed the conventional spring which spring r is retained at its lower end by my improved retainer.

Figure 2 is a section throughthe lower end of the valve stem disclosing my retaine in side elevation.

Figure 3' is an elevation of the lower end maintaining the valve 5 normally closed is designated by the reference character 9 and consists of a single length of steel wire so bent as to provide il'llOIlZOlliitLl central portion 10, the bottom surface of which is 1927. seriai'iv'o. 195,703Q

channeledto provide'a plano surface 11. At the opposite ends ofthis horizontal portion the wire is then bent. downwardly as at 1212 and'thence upwardly at direct right angles to provide hooks 13 13. In actual practicethis retainer 91is arranged through The plano surface this pin 9 is then seated upon the lower end of the valve stem. slot 7 the particular forplano surface 11 providing shoulders at opposite ends thereof toengage the opposite ends of the lower edge of the slot to prevent the movement of the pin therein. Furthermore the hooks 1313 serve as meansfor supporting the lower end of the spring 8in an obvious manner.

PATENT OFFICE.

' the slot 7 in the valve stem 6 after the spring 8 has been compressed.

11 of the horizontal "central portion of .mation of the slot in the pin forming said I It will thus be seen that I have'provided a highly novel, simple, and useful valve spring retainer that iswell adapted for all" the purposes heretofore Zdesignated, even though Ihave herein shown and described the inventlon as consistlng of a' certa1ndetail structural element it is nevertheless tof be understood that some changes may be made therein without affecting the spirit and scope of the appended claim. 7

i Having thus described my invention, what I claim as new is Inf av valve spring retainer wherein the stem of the valve is formed adjacent its lower endwith' a, cross slot, an elongated wire pin bent to provide a horizontal central portion for disposition through the slot, the

bottom surface of the horizontal portion heing cutout to form shoulders for engage ment with the opposite sides of the slots at the lower edge thereof, the outer ends of the wire pinbeing bent downwardly and thence upwardly to form opposed hooks for en-,

gaging the opposite sides of the lower end of a valve spring surrounding the stem;

In testimony whereof I afiix my signature.

ASBERRY some.