US1467628A - Valve-spring compressor and lifter - Google Patents

Description

Sept 11,1923;

` 11,467,62@ o. v. vANlcEK VALVE SPRING coMPREss'on AND LIFTER Filed July 5. le

Patented Sept. 11, 1923.

narran stares PATENT lilfl.

OTTO VINCE VANICEK, OF TEMPLE, TEXAS.

VALVE-SPRING COMPRESSOR AND LIFTER.

Application filed July 5, 1922. Serial No. 572,837.

To all 'whom t may cmwern:

' Be it known that O'r'ro VINCE VANICEK, a citizen of the United States of America, residing at Temple, in the county ofl Bell and State of Texas, have invented certain new and useful Improvements in ValveSpring Compressors and Lifters, of which the following is a specification.

This invention relates to certain new and useful improvements in valve spring compressors and lifters, and has particular reference to a portable device or hand tool, adapted for compressing the spring upon a valve stem to permit the easyremoval of the retaining nut for the spring that is threaded upon the lower end of the valve stem.

The primary object of the invention resides in the provision of a valve lifter and spring compressor'wherein the rod engaging the valve at the head of the stern is ad justable in length to accommodate the tool for use in connection with valves of various sizes.

Vith the above general objects in view `of the invention is better understood, the

same consists of the novel form, combination and arrangement of parts hereinafter more fully described` shown in the accompanying drawing and claimed.

In the drawing, wherein like reference characters designate corresponding parts throughout the several views, l

Figure 1 is a side elevational view of a valve spring compressor and valve lifter constructed in accordance with the present invention,

Figure 2 is a vertical sectional view taken on line Il-II of Fig. 1 showing the longitudinally adjustable and extensible valve engaging rod,

Figure 3 is a detail sectional view taken on line III-III of Fig. 2 showing the pivotal strap connection between the tensioned slidingcollar upon the valve engaging rod and the curved lever arm that engages the lower end of the valve spring,

Figure 4 is a detail sectional view taken on line IV-IV of Fig. 2 showing one section of the valve engaging rod threading into the other section thereof, and

Figure 5 is a fragmentary plan view of the lower end of the curved lever engaging the valve spring, showing the bifurcated end thereof for straddling the valve stem.

The present device being designed for compressing the spring upon a valve stem to permit the easy removal of the retaining nut threaded on the valve stem for said spring, the same embodies a valve engaging rod including an upper section 1 having a head 2 at the upper' end thereof, while the lower end thereof is threaded as at 3 to be adjustably received in the internally threaded tubular member l having a lniurled flange 5 at the upper end thereof to facilitate rotation of the tubular member, a tapering valve engaging` head 6 being carried b v the lower end of the tubular member and formed integral therewith as clearly shown in Figs. 1 and 2. The tubular member l being adjustable upon the rod section 1, the same is maintained in a set position by the jam nut 7 threaded on the portion 3 of the rod for engagement with the upper end of the tubular member as clearlr7 illustrated.

A lever arm 8 is pivotallv associated with the valve engaging rod and has a lower arched end 9 terminating in a bifurcated end l0 as shown in Fig. 5 for straddling the lower end of a valve stem to engage the lower end ot the spring upon a valve stein, The upper end 11 of the lever arm 5% is pivotally connected as at 12 to the curved end 13 of the operating handle 11h the lower face 18L of the curved end of the handle being convened and engaging the head 2 upon the upper end of the valve rod engaging section 1.

The pivotal connection between the lever arm 8 and the valve engaging rod imzludcs a sleeve or collar 15 freely slidalilc upon the rod section l. the collar 15 carijving (flianlctricallv opposite pivot pins 1G that engage the opposite sides of the looped strap bearing 17 of the lever arm 8, as clear-lv shown in Figs. 1 to 3. coil spring 1S surrounds the rod section 1 between the head 2 thereof and the upper end of the collar 15 for normallT holding the valve engaging rod in its shifted position. To prevent rotary movenient of the valve engaging rod relative to the lever arm 8, an arm carried by the head 2 ofthe rod section 1 is bifnrcated as at 19 for enclosing the upper end 11 of the lever arm 8.

From the above detail description of the CFI device, it is believed that the construction and operation thereof will at once be apparent, it being noted that the valve engaging rod is adjustable in length to accommodate the use thereof in connection with valves of different sizes, the head G upon the tubular member el of the valve engaging rod being placed in engagement with the valve, while the lower bifurcated end l() of the lever arm 8 straddles the lower end of the valve stein and engages the lower` end of the spring surrounding the same. By depressing the handle lever 14, the valve engaging rod is lowered against the tension of the spring 18 while the collar 15 also moves upwardly upon the rod section 1, thereby compressing the valve spring and permitting the easy removal of the retaining nuts therefor. TWhen the valve spring has been placed under full compression, the lower side wall 13b of the lower arched portion of the curved end 13 of the handle lever 14 is presented for engagement with the head 2 upon the rod section 1, and in this position the handle lever 14 is retained against accidental movement during the operation of removing' the retaining means for the valve spring. In a similar manner, the valve spring may be placed upon the valve stem and the retaining nut therefor properly applied.

While there is herein shown and described the preferred embodiment of the present invention, it is nevertheless to be understood that minor changes may be made in the invention without departing from the Spirit and scope thereof as claimed.

lhat is claimed as new is z 1. In a valve spring compressor7 a valve engaging rod formed of extensible sections with the lower end thereof adapted for engagement with a valve, a curved lever arm slidably and pivotally associated with the valve engaging rod with the lower end thereof adapted for engagement with the lower end of a valve spring, and ahandle lever pivotally connected to the upper end of the curved lever arm and in engagement with the upper end of the valve engaging rod.

2. In a valve spring compressor, a valve engaging rod formed of extensible sect-ions with the lower end thereof adapted for engagement with a valve7 a curved lever arm slidably and pivotally associated with the valve engaging rod with the lower end thereof adapted for engagement with the lower end of a valve spring', a handle lever pivotally connected to the upper end of the curved lever arm and in engagement with the upper end of the valve engaging rod, the sliding and pivotal connection between the lever arm and the valve engaging rod including a collar slidably mounted upon said rod7 and a strap portion carried by the lever arm pivoted to said collar.

3. In a valve spring compressor, a valve engaging rod formed of extensible sections with the lower end thereof adapted for engagement with a valve, a curved lever arm slidably and pivotally associated with theV valve engaging rod with the lower end thereof adapted for .engagement with the lower end of a valve spring, a handle lever pivotally connected to the upper end of thel curved lever arm and in engagement with the upper end of the valve engaging rod, the sliding and pivotal connection between the lever arm and the valve engaging rod including a collar slidably mounted upon said rod. a strap portion carried by the lever arm pivoted to said collar, and cooperating means carried by the valve engaging rod and the upper end of the lever arm vto prevent rotary movement of the rod relative to said arm.

4. In a valve spring compressor, a valve engaging rod formed of extensible sections with the lower end thereof adapted for engagement with a valve, a curved lever arm slidably and pivotally associated with the valve engaging rod with the lower end thereof adapted for engagement with the lower end of a valve spring, a handle lever pivotally connected to the upper end of the curved lever arm and in engagement with the upper end of the valve engaging rod, the sliding and pivotal connection between the lever arm and the valve engaging rod including a collar slidably mounted upon said rod, a strap portion carried by the lever arm pivoted to said collar, and a bifurcated member carried by the upper end of the valve engagii'ig rod straddling the upper end of the lever arm 'to prevent rotary movement of the rod relative to said arm.

In testimony whereof l aHix my signature.

orro VINCE vaNionK.

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