US1951970A

US1951970A - Valve keeper inserting tool

Info

Publication number: US1951970A
Application number: US668115A
Authority: US
Inventors: Howard R Elliott
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-04-26
Filing date: 1933-04-26
Publication date: 1934-03-20
Anticipated expiration: 1951-03-20

Description

Mmh 2o, 1934. H R, ELUQTT 1,951,970

VALVE KEEPER INSERTING TOOL Filed April 25. 1933 mln:

'INVENTOR ATTOR N EY WITNESS:

Patented Mar. 20, 1934 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to a tool especially adapted for facilitating the application of a valve key to the stern of a valve before the releasing of the spring of the valve and has for the pri- 5 mary object, the provision of a device of the above stated character which will permit a person to easily and quickly insert a valve key to a valve stem and release the valve key when properly positioned without the danger of dropping or losing the key and also permits the key to be readily positioned on a valve stem when located in an inaccessible place.

With these and other objects in View this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a top plan view illustrating a valve key or keeper inserting tool constructed in accordance with my invention.

Figure 2 is a side elevation partly in section illustrating the same.

Figure 3 is a transverse sectional View taken on the line 3-3 of Figure 1.

Figure 4 is a similar view taken on the line 4-4 of Figure 1.

Figure 5 is a fragmentary sectional view illustrating the mounting of one of the spring pressed retaining plungers.

Referring in detail to the drawing, the numeral 1 indicates tubular handles connected together by a spring member 2. Shanks 3 are formed integrally with the handles 1 and have their free ends arcuately curved to form jaws 4. Formed integrally with the jaws 4 are plates or seats 5. Inwardly extending projections 6 are formed on the free ends of the jaws and cooperate with plungers 'l in removably securing a sectional valve key 8 to the jaws, veach jaw carrying a section of the key. The plungers are notched, as shown at 9, to engage one edge of the sections of the key, while the opposite edge of the sections is engaged by the projections 6 and the jaws 4. The plungers 7 are normally urged towards the free ends of the jaws or the projections 6 by coil springs l0 mounted in the handles l. The plungers 7 are slidably received in the handles and carry finger pieces or pins 1l which operate in slots 12 formed in the handles. A yoke or guide 13 is carried by one of the handles and has the other handle extending therethrough. The purpose of the yoke 13 is to retain the handles in parallelism and permit a limited separation of the handles by the tension members 2 for the purpose of parting the jaws 4 so that the sections of the key may be placed about a valve stem 14, as shown in Figures 1 and 2. After the positioning of the key about the valve stem, the plungers are moved against the action of the springs l0 by the linger pieces 11, releasing the key and on relaxing the grip upon the handles, the tension members 2 will separate the jaws so that they may be withdrawn from the key without disturbing the latter on the valve stem. Keepers can also be held in place and the valve spring let down which will force the tool oli the keepers, leaving the keepers in place on the valve stem. After the release of the key on the valve stem, the usual spring seat 15 held against the valve spring, not sho-wn, may be released to assume its position over the key.

While I have shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement of parts may be made without departing from the spirit and scope of my invention, as claimed.

Having described the invention, I claim:

l. A tool comprising yieldably connected tubular handles, arcuate-shaped jaws carried by the handles, projections on said jaws, spring pressed plungers slidable in the handles and having notched ends cooperating with the jaws and projections in gripping the sections of a valve key, linger pieces connected to the plungers for releasing the plungers from the key, plates on the jaws cooperating with the latter and the plungers in supporting the sections of the key, and a yoke carried by one of the handles with the other handle extending therethrough for the purpose of retaining the handle in parallelism and for limiting the movement of the handles away from each other.

2. A tool comprising a pair of tubular handles, spring means connecting the handles and permitting the latter to pivot relative to each other, means for limiting the pivotal movement of said handles and guiding the latter during their pivotal movement, jaws carried by said handles, and spring-pressed plungers slidable in the handles and cooperating with the jaws to grip a key.

3. A tool comprising a pair of tubular handles, spring means connecting the handles and permitting the latter to 'pivot relative to each other, a combined stop and guide means for the handles, Shanks integral with the handles and terminating in arcuately curved portions to form jaws to engage ends of sections of a valve key, plates on the jaws to underlie the key, and spring-pressed plungers slidably mounted in the handles and overlying the plates and having their ends notched to engage ends of the sections of the key opposite to said jaws.

HOWARD R. ELLIOTT.