US1912071A

US1912071A - Auxiliary valve stem guide

Info

Publication number: US1912071A
Application number: US639513A
Authority: US
Inventors: Fred G Eisenhuth
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-10-25
Filing date: 1932-10-25
Publication date: 1933-05-30
Anticipated expiration: 1950-05-30

Description

May 30, 1933. F. c. EISENHUTH AUXILIARY VALVE STEM GUIDE Original Filed Feb. 27, 1930 2 Sheets-Sheet l May 30, 1933.

F. e. EISENHUTH AUXILIARY VALVE STEM GUIDE Original Filed Feb. 27, 1950 2 Sheets-Sheet 2 [n ventor 'jzsezaZ/wfb FQl valve guide in its final posi Patented May 30, 1933 r ArNr FRED G. EISENHUTH, OF UTICA, NEW YORK AUXILIARY VALVE STEM GUIDE Refiled for abandoned application Serial No. 431,893, filed February 27, 1930. This application filed October 25, 1932.,

This application is a substitute for my application Serial Number 431,898, filed February 27, 1980, which was allowed June 18, 1931, and become forfeited and aban- 1 doned. This invention relates broadly to in- Heretofore, the auxiliary valve stem guide used in the operation of grinding valves preferably consisted of a pair of sections engaging the valve stem and held in place by the valve spring which spring in turn was locked by a washer having a tapered hole to prevent the washer from slipping over the enlarged end of the valve stem.

As comprehended by the present invention, the auxiliary valve stem is formed of one piece, is of simple construction, can be readily engaged with the valve stem and readily disposed in the valve stem guide bore of the engine block for retaining the valve in position during the grinding operation. v

Other objects and advantages of the in- 4 vention will become apparent during a study of the following description, taken in connection with the accompanying drawings wherein: Figure 1 is a fragmentary detail sectional 3 view taken through the cylinderblock, the valve shown in seated position, the guide stem not shown. 7

Figure 2 is a similar View of my improved auxiliary stem guide being illustrated as to its use.

. Figure 3 is a perspective view of the auxilary guide per se.

Figure 4 is an elevational view of a barrel, and the auxiliary guide illustrating the 7 first step in engaging the guide with the valve stem.

Figure 5 is a similar View illustrative of the second step in the operation.

Figure 6 is a similar view showing the Serial No. 639,513. 1

Figure 7 is a side elevational view of the guide with partsbrokcn away for showing the spring actuated valve stem engaging member for retaining the uide in position shown in Figure 6.

Figure 8 is a top plan view of the auxiliary guide.

With reference more in detail to the drawings, it will be seen that I have designated the cylinder block of the internal combustion engine by the reference character 1, the .valve seat by the reference character 5, the valve push rod being designated at 6 and the push rod guide designated general ly by the reference character 7 and the guide receiving bore by the. reference character 8.

The valve is designated generally by the reference character 9 and thestem of the valve by'the reference character 10. In regard to the valve, it is to be noted that the stem 10 atthe lower free end thereof engageable by the push rod 6 is enlarged. At this time it may be well .to mention that the type of valve illustrated is now common to the new Model A Ford engine and, in providing a guide for the valve stem for grinding of the valve, these auxiliary guides have, as set forth in the statement of the invention, heretofore been constructed of sections embracing the stem and clamped together about the stem through the medium of the valve spring which spring, in turn, is locked by a washer having a tapered hole corresponding to the tapered or enlarged end of the valve stem whereby thewasher is retained against slipping oif the lower end of the stem.

Asshown to advantage in Figures 2 to 8, inclusive, the auxiliary valve stem guide comprehended by the present invention is formed in one piece and may be formed of any suitable metal. Thus it will be seen that the auxiliary valve stem guide comprises a cylindrical body ll formed at one end with an enlarged annular head 12, the body 11 adapted to fit snugly within the bore 8 with the head 12 supported at the upper end of the bore as clearly suggested in Figure 2. I r

The body 11 has a longitudinally extending valve stem receiving bore 13 extending therethrough and through the head 12. Intermediate its ends, the body 11 is provided with a transverse opening 14 opening into the bore 13 and adapted to initially receive the valve stem, as shown to advantage in Figure 4.

Further, the body is provided with diametrically opposite

lateral openings

15 and 16, respectively, opening to the bore, as

clearly suggested in Figure 3. The enlarged head 12 is also provided with a radial notch or opening 17 communicating with the bore and in longitudinal alinement with the opening 16.

As shown to advantage in Figure '7, the head 12 is also provided with a horizontal bore 18 opening at one end into the notch or opening 17. Threaded in the other end of the bore 18 is a plug or nut 19 and a spring 20 is arranged in the bore 18 and has one end impinging against the plug 19 and the other end is secured to the ball 21 for normally urging the ball outwardly of the adjacent end of the bore 18 into the opening 17 for a purpose hereinafter fully made manifest.

As shown to advantage in Figures 4 to 6, inclusive, when using the auxiliary valve stem guide comprehended by the present invention for use in grinding valves, it will be seen that an intermediate portion of the valve stem 10 is disposed first, as shown in Figure ifinto the transverse opening 14 to be received in the valve stem receiving bore 13 after which the auxiliary guide is rotated on an axis perpendicular to the axis of the valve stem as clearly suggested in Figure 5 so that the upper portion of the valve stem will enter the bore 13 through the lateral opening la in the body 11 and lateral opening 17 in the head 12, while a lower portion of the stem will enter into the lower end of the bore 13 through the lateral opening 15 until the stem 10 and auxiliary guide are in that position shown in Figure 6. When in this last-referred to position, it is obvious that the ball 21 under action of the spring 20 will bear against an adjacent portion of the stem 10 for retaining the stem and guide in said position.

Without some such means as a springpressed ball '21, it is obvious that due to the weight of the headed end of the body the guide would have the tendency to assume that position shown in Figure 5.

The auxiliary valve stem guide being arranged on the stem in the manner suggested in Figure 6, the stem may be then inserted through the bore 8 and the valve 9 then seated as clearly suggested in Figure 2. Obviously, when in this position, the guide will drop downwardly through the bore 8 so that the head 12 will rest in the recess at the upper end of the bore.

From the foregoing, taken in connection with the accompanying drawings, it will be seen that I have provided a thoroughly reliable, practical and eflicient auxiliary valve stem guide fully capable of retaining the valve in suitable position during grinding operation, and that the valve stem guide is complete in one piece.

Even though I have herein shown and described the preferred embodiment of the invention, it is to be understood that the same is susceptible to changes fully comprehended by the spirit of the invention as herein described, also the appended claims.

What is claimed is:

1. An auxiliary valve stem guide comprising a body having a longitudinalvalve stem receiving bore and a transverse opening through which the valve stem is initially introduced into the bore, said body being further provided with oppositely disposed lateral openings through which the stem enters the bore as the guide is rotated about an axis perpendicular to the axis of the valve stem.

2. An auxiliary valve stem guide comprising a body having a longitudinal valve stem receiving bore and a transverse opening through which the valve stem is initially introduced into the bore, said body being further provided with oppositely disposed lateral openings through which the stem enters the bore as the guide is rotated about an axis perpendicular to the axis of the valve stem, said body having an enlarged head on one end thereof, said head having a pocket therein, and a spring pressed ball normally urged outwardly of the pocket for engagement with the valve stem.

3. An auxiliary valve stem guide for use in the grinding of valves, and comprising a headed cylindrical body having'a longi-' tudinal stem receiving bore, said body on diametrically opposite sides thereof provided with lateral openings respectively extending for a portion of the length of the body, said body being further provided with a transverse opening connecting said lateral openings.

4. A valve stem guide comprising a cylindrical body having a longitudinal stem accommodating bore opening laterally of the body longitudinally on opposite sides of the body and transversely on a third side of the body, said body being insertable into the bore of the engine block, and a spring pressed element mounted in the body and normally projected into the stem receiving bore of the body for frictional engagement with the stem of the valve.

In testimony whereof I afiix my signature.

FRED G. EISENHUTH.