US1793907A

US1793907A - Lubricating bar

Info

Publication number: US1793907A
Application number: US386864A
Authority: US
Inventors: Benjamin F Clarke; William J Mcdonald
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-08-19
Filing date: 1929-08-19
Publication date: 1931-02-24
Anticipated expiration: 1948-02-24

Description

Feb. 24, 1931. a. F. CLARKE ET AL LUBRICAT ING BAR Filed Aug. 19. 1929 y Patented Feb( 24, 1931 AuNrrEDsra'ras PATENToFFIcE i BENJAMIN r. CLARKE AND WILLLAMJVMCDONALD, or uns MOINES, Iowa LUBRICATING BAR' Application led August 19, 1929. Serial No. 386,864.

j The object of this invention is to provide -an improved construction for a tool 1n the nature of a `pry bar which is particularly useful `in the operation of lubricating vehicle 5 springs.

A further object ofthe invention is to pro- 'beinfr used in such manner as to relieve the :a j i pressure on the spring shackles and spring ic snspensionbolts in `such mannerthat lubricant may be readily introduced to the parts which ordinarily receive the greatest `pres- `1 v sure andthe greatest amount of wear 1n use.

`Stillanother` object of the invention `is to i5 provide an improved pry bar having an arcu ate fulcrum member adjacent to one end to facilitate the operation of separating two j yieldably connected members.

Another and further object of the invention is to provide a tool of the class described which is simple and economical in construction and capableof use in a variety of ways and in many diierent positions for facilitating lubricating operations. lith theseA and other obj invention consists in the construction, arrangement andcombination ot' the various parts of our device, whereby the objectscontemplated are attained, as hereinafter more fully set forth, pointed outI in our claims,and illustrated in the accompanying drawings, in which: j v

Figure 1 is a planviewof our improved tool.

Figure 2 is a side elevationof the same.

Figure 3 is an elevation partly in section illustrating the method of using the tool with relationto vehicle spring constructions in j which spring shackles are employed. Figure 4 is an elevation showing the tool in section and in positionfor use with a dil` ferent type of spring construction wherein the spring is connected directly to a boltcar-` riedby the horn of theframe member.

'Figure 5 is a section on the line 5 5 ot Figure 4, showing the tool in elevation` and in position for use.` u

Figure 6 is an elevation showing the tool as employed for use with aV still different type of spring construction in which the spring is ects in view, our

arranged transversely above the vehicle axle.

`Figure 7 is a sectional elevation illustrating a modied form of tool in position for use with a vehicle construction having spring shackles and a bumper arranged closeto the W i N `end ol the spring and frame member. vide an improved tool which 1s capable of l The `toolor lubricating bar as `shown in- `cludes a relatively straight body `portionl() which is flattened, slightly curved and attenuated at one end to form ablade 12. It will be noted from Figure 2 that the blade does not extend laterally beyond the lon- 1 extends substantially at right angles thereto and is attenuated atits end. i i

A fulcrum member 18is formed or mount- TS ed on the shank 14. As shown in Figures 1 and 2, the fulcrum member is separately formed and is of channel shape and is secured to the shank 14 by rivets or the like 20;

. The `ulcrum member 18 preferably is of "5 substantially right angled construction, having its longer leg extending along the shank 14 and its shorter leg extending therefrom at a point near the juncture of the shank and body 10, The hypotenuse of the fulcrum se member is formed on a convex arc and is designated bythe numeral 18. This arcuate surface is provided to permit a rolling or j easy sliding contact with an object as hereinafter set Jforth. j a5 le have illustrated several dilierent methods of using the bar or tool `for causing a rel-- ative shiftingof vehicle springs and `their.

`suspension means whereby the strain on the parts maybe temporarily relieved to facilie" tate the introduction of lubricant thereto.

In Figure 3 there is shown a vehicle spring i construction in which the side frame member including at its upper end a bolt 34 which is Vreceived rather loosely in the bore 26 of the horn and at its lower end a similar bolt 36 which is received rather' loosely in the eye 30V othejspring.

Each

shackle bolt

34 and 36 is vtormed with yalongitudinal recess vo r passage 38 having radially extending discharge ports 40 opening` to the circumference'of the bolt. These passagesy and discharge ports are employed for-forcing grease to those parts of the shackle bolts which contact frictionally with the members in which they are mounted.l

The method ot lubricating these shackleboltsusually involves the use oi well known pressure devices. v Y

Itis well known., however, that on account 'of the weight which rests on 'the shackle'bolts,

whereby those parts which receive the greatestfwear are causedtoforcibly contactfwith the surfaces of the members inwhich they are received, such for instance as the upper part of thebore 26 and the lower part of the eye 30, it is diiiicult to cause the grease to reach the parts which are' mostly in'needof e lubrication. .Y

` By the use of our'tool this strain may be Vtemporarily relieved and this is accomthe respective members.

plished, with respect to this particular construction; as yindicated in Figure 3;

The hooked end of the bar is insertedbe- Y tween the side members of theshackl'e 32 with the hook portion 16 facing upwardly and the curved face 18 contacting with the inner part of the periphery of the eye 3v()v of the spring. I

Pressure is then applied to the tool by bearingv down on the outer end of the body 10 in the direction of' the 4arrow a, whereby they to separate the members as shown in Fig-k ure 3.

This separation moves the horn 24 and springy 28 away from those parts of; the shackle bolts'which are ordinarily in contact Vand permits the grease to be extruded from the discharge passages 4() to those points which receive the greatest wear and are, therefore.,Y in most need of receivinglubrication.

Then the tool is removed by upward and outward movement and the operation' is'repeated at other points" on the vehicle'. y

` In the construction according' to Figures 4 and 5 no shackles are employed but the eye 420i thespring 44 isl received direjetlyon a member 50.

y bolt 46 carriedby the horn 48 of thel frame' the use of the cation Nith respect to this spring construction,

the tool may be inserted laterally between the rear ends of the spring andY frame membenor its horn, in substantially the same position as previously referred to. The pressure is then applied in the direction of the arrow b in Figure. n. 'Y

' The shank portion 14 is causedtoengage beneath or against the lower face of the frame member 150 and the `curved ulcrum face 18f is ca usedtoY engage againstt'he Vupper surface vof the spring '44, thu-s facilitating Vthe operation of slightly spreading these members for a purpose similar to that 'al-Y ready described. v j l n In Figure 6 therey is illustrateda type of spring construct-ionin which the spring 52is mountedfabove the'axle member 54 and parallel therewith. rheend's of the spring 52- are supported by spring shackles 56 suspended Vfrom posts 58V carried'bv theaxle4;

In.` using the tool with respect to thistype ot' spring construction, the flat blade 12 is yemployed and isr inserted between the axle- 54 and the end of thespring and shackle as shown in Figure 6( Dmvnward pressure is exerted in the direction of the arrow c tolift the weight carried bythe spring andv permit a lmovement of the spring andfsh-ackle bolts 60 whereby the insertion of the lubricant is permitted in the required points. In this operation the curved outcrface of the VAblade, which we have designa-ted by the numeral .12', is caused to ride on the'nppe'r face of the axle 54.

In the construction according to Figure 7 there is shown a spring arrangement similar to that of Figure 3 and in which the same numerals are employed todesignatc corresponding parts. The construction includes also a bumper member 62which is placedV so close to the ends of the frame member and spring as to cause .some interference with tool in the lubricating operation. I v f Y For this reason we have shown a modified form of tool in which the handle or body portion 10 is formed with a downward oit'set 10 near that endv carrying the fulcrum member. This offset permits the insertion of theftool behind the bumper 62' as clearly shown. The pressure is applied to the outer end oi the toolin the direction of the arrow 0l' for separating the members to permit y proper lubrication'.

Through the use of our improved tool,v in any or all of the methods illustrated and described, we have great-ly facilitated the. operationof introducing lubricant to4 the spring suspending members which receive the great`- est wear.' in use. This tool greatly reduces the amount of labor requiredfor this; operation and insures th'atxthei lubricantY willl feach the 'pontswhiehz are most-lyfn medion-lubril We claim as our invention:

` l. A tool for use in relieving the weight i s on a vehicle spring, comprising aV body por tion, said body portion terminating in a shank having a flat blade at its end, said blade having its point curved laterally and hooked, a fulcrum member on said blade having a convex fulcrum surface on its forward side, said convex surface being adapted to ride on one object as pressure is applied to the body portion of the tool to cause the blade to forcibly Contact with another object spaced from the first object, said body portion being offset rearwardly of said fulcrum member in the same general direction as the projection oi said fulcrum surface from the blade, to permit insertion of said tool between a bumper and a vehicle spring.

2. A tool for use in relieving the normal weight on a vehicle s rino' com )rising a bod 23 C D portion, a shank having a curved blade, and a fulcrum member on the opposite side of the shank from the direction of curvature of its blade, said fulcrum member being of substantially right-angled form having one leg extending along said shank and the other leg extending away therefrom, the ends of said legs being connected adjacent said blade by