US1236826A

US1236826A - Valve-spring compressor.

Info

Publication number: US1236826A
Application number: US13442116A
Authority: US
Inventors: Ralph A Durland
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-12-01
Filing date: 1916-12-01
Publication date: 1917-08-14
Anticipated expiration: 1934-08-14

Description

R, A. DURLAND.

VALVE SPRING comrnzssoa.

APPLICATION FILED DEC. 1. 19I6.

Patented Aug. 14, 1917.

.5; min

INVENTOR DhADurland ATTORNEY provision of a valve spring compressor was. DUBLAND, or wnsnme'ronvrrmn, new YORK.

vnnvn-srnme comrnnsson.

Specification 01' Letters Patent. Patented'Aug. 14, 1917.

Application filed December 1, 1916. Serial No. 184,421.

To all whom it may concern:

Be it known that I, RALPH A. DURLAND, a citizen of the United. States, residing at Washingtonville, in the county of Orange and Statelof New. York, have invented certainnew and useful Improvements in Valve- Spring Compressors, of which the following is a specification.

This invention relates to a valve spring compressor and the primary object of the invention is to provide a device for lifting and compressing the valve springs employed to operate the valves of a gasolene'engine whereby the valves and valve stems may be removed while the springs are held in compressed position.

Another object-of the invention is to provide a valve spring compressor adapted to be employed in connection with two or more valve springs, the lifting mechanism including a handle which requires a single downward movement for forcing the-lifting plate into raised osition.

.The invention urther aims to provide a device for lifting compression springs of this character, having a pair of operating levers operating in conjunction with a lifting plate, the levers being arranged to look when the plate has been lifted to its limit of upward movement.

A further 0b]6Ct of this invention is the which consists of comparatively few parts and is simple in ,construction, but durable and well adapted to withstand the rough usage to which devices of this character are ordinarily subjected.

For a full description of the invention and the advantages and merits thereof, reference is to be had to the following description and the-accompanying drawings, wherein is illustrated the preferred form invention, in which:

- Figure 1 is a fragmentary-side elevation of my of a portionpf a gasolene motor showing my invention applied thereto.

Fig. 2 is a plan view of the device in operative position.

Fig. 3 is a View of a fragmentary port on of a gasolene motor showing the'invention applied to the'valve springs in the position it assumes immediately before thelifting 4 operation.

Fig. 4 is a similar viewfshowingthe dev1ce in operative position.

Referring to the drawmg, whereinjis illustrated. the preferred form of my invention,

and in which like numerals of reference indicate corresponding parts throughout the several views, the gasolene motors of the usual construction are provided with the valve stems 1 which are circumscribed by the coil compression springs 2. A valve spring seat 3 is slidably mounted uponthe valve stem 1 while beneath the seat 3 the stem is provided with a pin 4: against which the spring seat. 3 bears for forcing the valve stem downwardly, thus holding the valve (not shown) in closed position. The.valve x lifting rods 5 are extended upwardly,- through the casing of the motor and are pro ected through the cylindrical sleeves 6,

one of whichis provided for each rod 5.

A lifting. plate 7 is provided and is of substantially .rectangular formation and is provided with the transverse slots 8 which extend inwardly from one edge of the lifting plate and terminate adjacent the center thereof. These slots8 are spaced apart for a distance equal to the distance between the centers of the valve stems 1 so that the valve stems may be received within the slots when the device is 'to be operated. Depending from one edge of the plate is a guard plate 9 and the sideedges'of this plate are con- An operating lever ally connected to the ears 10 by the pivot pin 12 while dependingfrom. the side edges of the operating lever ,are the 'connecting ears l3. Afulcrum lever 14 has one end pivotally carried-by tlre ears 13 whichlare provided with 'a pivot pin 15 extending through ,a rolled-portion ofthffulcrum} lever 14 as clearly shown by 'Figs. 3: and 4 of the drawing;

It will be understood, of course, that the precise construction of the device may'have to-be varied to-conform to the'diflerent designs found in the various types ofgasolen'e nected to the lifting flanges 10 'upon .which the lifting power is exerted when the operat ing lovers are operated. I 1 llhas its end pivot-- new fmotors. In the present instance however, I l ave illustrated the device in connection with a motor which is provided with a lip formed by a slight extension of the valve cover 17. In, use thedevice in connection with this type of engine,.the lifting plate be first placed in position where the slots fi. will receive the stems 1, the plate gamin under the valve spring seat}.3 so

ilo'ne by forcing the platein between the pinea -and the seat 3a The back or guard plate '9 isithen contacting with the side wall ifi'the fulcrum lever 14: will be locked against any further movement and the liftmg position whereby access may be gained to the stemsl or the-rods 5.

From-"the foregoing it will befobs'erved that a very simple and durable valve spring compressor has been provided, the details of which embody the preferred form. I desire it to be understood however, that slight changes in the minor details of construction may be made without departing from the spirit of the invention claims hereunto appended.

I claim:

1. A valve spring compressor comprising plate having a guard plate integrally formed therewith and depending at right angles from one edge thereof and operating meanspivotally mounted on the guard plate and including a fulcrum lever adapted to be locked when the said operating means is actuated to maintain the said plate in raised position.

guard p formed therewith and dflp iilding at right atfthe said seat rests upon the plate. This lever 11' is forced into contact with the lip.

plate will thus be retained in raised.

or the scope of the:

2. A valve spring compressor comprising ed to have its end portion embrace two 0 angles from one edge thereof, an operating lever, pivotally carriedv by the plate, and means associated with the said lever whereby the said pl'a operating lever. is depressed.

{LQA valve spring compressor comprising, in cpmbinationTwith the valve stems and springs of a gasolene motor, of a guard plate adapted to slidably engage a portion 'aybe raised when the said of the motor between two valve stems there- ,of, means integrally formed with the guard plate for engaging two of the springs ci-rcumscribing the said'valve stems, and means associated with the said 'first mentioned means and adapted to engage'a portion of the motor for imparting a lifting motion to the said first mentioned means.

5. A valve spring compressor comprising,

in combination with the valve stems and springs of a gasolene motor, a plate provided with slots for receiving two of the valve stems, the top of the said plate adapted to support the 'ends of the said valve springs, and means pivotally carried by the said plate and adapted to be engaged by a portion of the motor for imparting a lifting motion to the said plate.

6. A valve spring compressor comprising, in combination with the valve stems and springs ofa gasolene motor, a lifting plate provided with slots extending inwardly from the edge of the plate and terminating at the center thereof for receiving a pair of the said stems, the upper surface of the plate adapted to engage the lower ends of the valve springs, ears carried by the plate and disposed directly beneath the same, the motor having a projection for providing a. lip, and means pivotally carried by the ears and adapted to engage thesaid lip and adapted for manual'operation for imparting.

a lifting motion to the said plate.

7. A valve spring compressor comprising, in combination with the valve stems and springs of a gasolene motor, a plate adapted to have its end portion embrace two of the said stems for receiving the ends of the corresponding springs, a guard plate carried by the lifting plate and adapted to engage the motor between two of the said stems, an operatinglever pivotally carried by the said plate, and means adapted to engage a portion of the motor and adapted to cooperate with the said lever for providing a fulcrum for the lever whereby a lifting motion may be imparted to the plate when the lever is manually depressed. Y

S. A valve spring compressor comprising, in combination with the valve stems and springs of a gasolene motor, a plate adaptthe said stems for receiving the ends of the corresponding springs, a guard plate carried by the lifting plate and adapted to engage the motor between two of the said the lever whereby a lifting motion may be 10 stems, an opeiating lever pivotally carried imparted to the said plate b the said plate, the said lever being pivotfjiy connected to the plate at a point miai- 5 way between the said stems, ears carried In testimony whereof I afix my signature in presence of two Witnesses.

T by'the lever at a point adjacent its pivot RALPH DURLALD' point, and means pivotally associated with Witnesses:

the ears and adapted to engage a gsortion J. BRADLEY SCOTT,

of the motor for providing a fulcrum for MARGARET A. CARROLL.