US1510777A

US1510777A - Valve-cage remover

Info

Publication number: US1510777A
Application number: US632467A
Authority: US
Inventors: James M Harrub; Homer N Tyson
Original assignee: HARRUB
Current assignee: HARRUB
Priority date: 1923-04-16
Filing date: 1923-04-16
Publication date: 1924-10-07
Anticipated expiration: 1941-10-07

Description

Patented Oct. 7, 1924.

y UNITED ST'IES PATENT OFFICE.

:rAi/Ins ivI. HARRUB AND nomen. nrvson, on HoNoLULU, TnnRIroRY or HAWAII;

` sAIzo Tyson AssIGNoR To SAID HARRUB.

VALVE-CAGE REMOVER. V

Application filed April 16, 1923. `,Serial No. 632,467.

To aZZ whom t may concer/n.:

Be it known that we, JAMES M. HARRUB and HoMnR N. TYsoN, citizens of the United States, residing at Honolulu, Territory of Hawaii, have invented certain new and useful Improvements in a. Valve-Cage Remover, of which the following is a specification. v

This invention relates to an improved tool y for `facilitating the quick rand expeditious removal ofvalve cagesfrom motors having valves ofthe overheadtype, the improved tool being `so lconstructed, that the entire valve assembly can be removed, without in jury thereto or to the cylinder head.

Another object of the invention is to provide an improved tool for pulling or removingvalve cages of overhead valves from motors, which can be readily placed in position in engagement with 'the valve for facilitating the removal of the valve assembly from the Vcylinder head, the tool being so arranged as to permit the use thereof by the layman, without the necessity of employing a skilled mechanic.

:Another object of the invention is to provide a valve cage remover, ywhich can be used to f the best 'advantage by mechanics, and vwhich will considerably simplify their work in the handling of overhead valve assemblies in Buick and other automobiles.

A still furtherl object of the invention is to provide a valve cage remover for automobile moto-rs Aemploying overhead valves which can also be used to the best advantage for temporary grinding valve seats and loosening any carbon which might be adhering to the valve and seat or cage.

A still Jfurther object of the invention is to provide an improved valve cage puller of the above character, which will be durable and efficient in use,- one which will be simple and easy to manufacture and which can be placed upon the `market at a reasonable cost. With these and other objects in view 'the invention consists in the novel construction, arrangement and vformation. of parts, as will be hereinafter more speciiically described, claimed and illustrated in the accoinpanyingl drawings, in which drawings:

Figure 1 is a side elevation of the improved valve cage puller showing thesame partly in section andin use for pulling'a valve cage, the cylinder head and valve assembly being shownin cross section.

Figure2 is a horizontal section talnanhonl the line 2-2'01" Figure 1.

Figure 3 is a horizontal section the line 3;-3 of Figure 1. y

F'gure 4 is a bottom plan view of the puller plate; v

Figure 5 is a transverse vertical section through the improved valve cage pulling tool showing the same applied to a' cylinder head. y

` Figure 6 is an enlarged fragmentary ,section through a portion of vthe tool showing taken .on

the'use of swivel seats for lifting screws in *.Referring to 4the drawings in detail,

wherein similarreference characters designate `corresponding parts throughout the several views, the letter A generallyr indi- 'categ the improved valve cagepulling tool and B a motorwith which the same can be used.

andas shown for example a Buick motor is illustrated, which includes the cylinder yhead 10 having `the usual way 11 for the valve cage 12. The valve cage 12 is held in7 position in the ordinary manner, that is by a threaded ring, fitted into the threaded end 13 of the said way 11. The valve cage 12 is of the ordinary construction and vslidably supports the stem 14 of the valve 15.v The upper end of the stem is'provided with the ordinary type of cross pin 16 which bearsagainst the upper washer'llorthe expansion spring'18, which is coiled aboutthe said valve stem 14. The lower end of this spring seats on the lower washer 19.v l

The improved tool Aembodies van upper pulling plate 20, which as shown is substantially of U-shape when viewed in plan and includes

end portions

21 and 22 and the arcuate connecting body portion-23 which is adapted to encircle the valve stem The motor BV vcan of vcoursebe of any n `preferred type embodying overhead valves 14. Now the inner edges of the

end portions

21 and 22 and the connect-ing arcuate body portion 28 are provided with a rabbeted portion 24 defining a flange 25, on which is adapted to seat the upper washer 17, when the valve cage or the complete valve essembly is to be pulled from out of the way 11. The forward end of the flange or shoulder 25 at the lower surface thereof is inclined as at 26 to define a knife edge inserting point 27 and it is obvious that when the pulling plate 20 is placed in position that these edges 26 engage between the up er end of the valve spring 18 and the was er 17 and thus facilitate the positioning of the plate in position. The valve spring being adapted to seat under the plate, while the washer is adapted to seat upon the shoulder or flange 25.

The

end portions

21 and 22 are provided with threaded ways 28 for the reception of the lifting

cap screws

28 and 29. The lower ends of these cap screws are provided with ball bearing ends 30, which are adapted to engage either removable swivel feet 31 or the Ufshaped bearing plate 32. The U-shaped bearing plate 82 is utilized where an uneven surface is encountered, while the swivel feet ,31 are utilized where flat sur faces are encountered.

The bearing plate 32 is of a flat construction and is shaped similar to the pulling plat`e'20 and also includes the end portions 33 and 34 and the connecting' arcuate body portion 35 which. is adapted to encircle the valve spring 18 and stem 14. The end portions and 84 are provided with sockets 36 which are. adapted to be positioned in the ball bearing ends 30 of the

cap lifting screws

28 and 29.

A key or wrench 40 is also used with the improved tool, and as shown this key or wrench 40 embodies a shank 41 having the diametrically extending handle 42 arranged with its upper end to facilitate the turning of said shank. The lower end of the shank 41 is provided with a head 48 for receiving the upper end of the valve stem 14 and` this head is slotted diametrically as at 44 for the reception of the valve key 16.

lhe handle 42 is preferably disposed below the upper end of the shank for a purpose, which will be hereinafter more fully described.

1n use of the improved` tool, when it is desired to pull the cage 12 or the entire valve assembly, the bearing plate 32 or the feet 31 as the case may be, are placed upon the upper surface of the cylinder head,

after lwhich, the bearing plate 2O is placed in position between the valve spring 18 and the washer 17, as heretofore described until the ball heads or bearing members 30 fit in the sockets 36 of the plate 32 or in the bearing feet 31. The key 40 can now be used and is inserted over the valve stem 14 and the stem is turned until the pin 16 comes in direct alignment with the adjusting or lifting

cap screws

28 and 29.

The

cap screws

28 and 29 are now rotated alternately for raising the puller plate 20 and it is obvious that the raising of this plate will pull the cage from the way 11.

llt is to be understood of course that prio-r to the pulling of the way that the retaining screw threaded ring is now thread ed out ofthe threaded portion 12o-f the way 11 and that the ordinary rocker and tappet arms are lifted up from out of engagement with the valve stems.

ln case it is desired to slightly grind the valve seats the tool Yis placed in position and as heretofore described the

screws

28 and 29 are adjusted slightly to lift or pull the valve 15 into tight engagement with the seat after which the wrench or lkey 40 can be rotated several 'times which will of course loosen any `carbon between the valve and its seat. If desired kerosene can lbe used for loosening 'carbonized and sticky cages when the valves are being temporarily ground, the retaining rings for the cages not being removed.

From the foregoing description, `it can be seen that an improved tool has been provided for pulling valve cages of overhead valves which is of simple and durable construction, and which will permit the convenient rand expeditious removing of the valve cage.

VChanges in details may be made without departing from the spirit or scope of this invention.

What we claim as new yis:-h

1. A valve puller comprising` a puller plate embodying end portions and aconnecting arcuate body arranged toeXtend around the valve stem and spring, means carried by the plate for engaging the ordinary valve spring washer, adjustable members carried by the plate adjacent the ends thereof, and bearing means for engaging the lower ends of said adjusting lmembers and the cylinder vadjacent to the "valve to be pulled.

2. The combination with a cylinder head having a way therein, a valve cage in said way and a valve stem and body carried by the cage, a washer and spring on said stem, of a valve cage pulling tool comprising a .puller plate adapted to encircle ythe valve stem and Vspring and arranged yto engage the lower surface of the washer and the upper edge of said spring, bearing means arranged to engage the upper end of the cylinder head and adjustable members carried by the puller plate arranged to engage said bearing means.

3. A valve cage lifter and valve grinding tool comprising a bearing device adapted to engage the upper end of `a,I cylinder head, a puller plate, means formed on the puller plate for engaging between the valve spring washer and spring, and: adjustable cap screws carried by the puller plate arranged to engage the bearing deYice. I

4. valve cage pulling tool comprising an arcuate bearing plate having sockets formed in the upper surface thereof, a puller plate, adjustable cap ffsc'rews carried by the puller plate adjacent'- to each end thereof, ball ends formed on 'the lower terminals of the cap screws for engaging in the sockets, an arcuate shoulder formed on said puller members, and inclined lower leading faces formed on the forward ends of the shoulder n at the lower surface thereof.

In testimony whereof we aix our signatures in presence of two witnesses.

JAMES M. HARRUB. HOMER N. TYSON Witnesses:

H. M. MAXAM, J oHN R. MoNIz.