US1543769A - Resilient support - Google Patents

Description

June 30, 1925. 1,543,769

E. M. HEWLETT ET AL RESILIENT SUPPORT Filed May 21, 1924 Fig; l.

v In\/ tors:

Edward Hewlett WaldO W. Willard;

3. 5 fi M Z' Their A-t-torneg P atented June 30, 1925.

UNITED STATE-I8 PATENT OFFICE,"

nnwa an MQHEWLETT AND wALDo w. wiLLAnn, or SCHENECTADY, mew YORK, AS-

' SIGNORS T esnnnannnncrmc comm, a CORPORATION or new YORK.-

n'nsnmnr snrron r.

Application aim as 21, 1924. Serial No. 714,e44.'

To all whom it mag concern:

Be it known that we, EDWARD M. HEW LETT and WALDO W. WILLARD, citizens of the United States, residing at Schenectady,

j is protected from shocks from all directions and-,.while being maintained normally ina definite positio More specifically our invention relates to a resilient support particularly adapted for instrumentsof precision by means of which the instrument is resiliently supported to rovided for independent movement'of the instrument with relation to its mount as a protection fronr shocks, v v-hilebeing returned thereafter accurately to a definite position of initial adjustment. In carrying out ourinventio'n we provide a cone-shaped position defining member and a member resiliently seated on this cone-shaped memher. 'One of these' membersis attached to the mount while the other is attached to the supported body; v

For a more complete understanding of v our invention, reference should be had to g the accompanying drawing in which Fig.1

is an I elevation view in section -of a resilint support embodying our invention, While Fig. 2 is anelevation view on a redueed scale showing the application of our invention to an instrumentvof recision,

Referring to Fig. 1 of the rawing, in carrying out our invention in one form as applied to the hanging of asupported body 10 on a supporting body or mount 11, we

provide a pin or rod 12 which is suitably secured to the supporting body 11 so 'to-extend downward therefrom and normally be in a substantially vertical position. The pin 12.1naybe and is shown as secured .to the body 11 by threading it and screwing it' into cooperating threads in the support peened over into at 16. e

The lower end of the enlarged portion 13 is provided with a suitably shaped position defining surface 17, shown as bemg pone-shaped, having its axis coincident with the longitudinal axis of pin .12. On the these grooves 15, as shown cone-shaped surface 17 is seated a sleeve 18, the upper end of the sleeve 18 being shaped in conformity. with the surface 17.

The. sleeve 18; when properly seated, is concentric with the pm 12. On the upper end of the sleeve 18 is a flange 19 which has a close sliding fit in an outer sleeve 20 secured to the supported body 10. An internal flange 21 is provided in the upper end of sleeve 20,against which flan e 19 is held by a' helical 'spring'22, the ower end of which rests on an internal flange 25 secured to the lower end of sleeve 20. As shown, the flange 25 is inthe form of a screw plug which is screwed into the lower end of sleeve 20, suitable threads being'provided. A central aperture 26 is provided in the plug 25 through which the sleeve 18 extends and in which the sleeve has-a close sliding fit. Bearing against the lowera face of plug 25 is alhelical spring 27,the lower end of which is seated on a washer 28 which in turn restsagainst nuts 29 on the lower end of pin 12. As shown, wthexplug 25 may be provided with suitable recessor depression 30, to receive the end' of spring 27 and to provide a seat for it.

The spring 27 is slightly larger in diameter than the sleeve 18 so that the sleeve is free to move axially of the spring 27 without touching it." It will observed that the spring 27 acts a ainst the spring 22 tending to compress it,

springj 27 and hence is not compressed thereby. g a

As shown, the sleeve 20 may be provided with external threads 31 and secured to the supported, member 10 by screwing it into cooperatin threads 32 on the supported member, set screw 33 ma, be provided a I but thespring 22 is made considerably stronger than thein a depression 14 formed for it in the body ingbodyu-"The pin* is provided with an enlarged base portion 13 which is seated justd' position. 7' The supported member 10'- may' be leveled or otherwise adjusted by floosening screw 33 and turning sleeve 20 in the proper direction. a

It is contemplated that a plurality of 11. To. prevent turning and consequently loosening of .the pin, grooves15 extending lengthwise of the pin are provided sin the portion 13 and the metal ofthe body 11 is spring supports of the type shown in Fig.

, in membel lll to lock the sleeve 20 in ad- 1. will be used in supporting an instrument of precision. As. applied to a periscopic sighting instrument 35 hung from an over- 7 head supporting-wall 36 (Fig. 2), three 6 spring supports 37, 38 and 39 may be used,

these supports bein spaced at equal distances about the device 35. I

In the event that sudden shocks are applied to the supporting body 11, the springs 1 22 and 27 will yield to. absorb the shocks and thus prevent injury of the instrument 35,

the spring 22 absorbing shocks applied to, the supporting body in a downward direction and the spring 27 absorbing shocks applied to the supporting body in an upward direction. One of the functions of the cone-shaped seat 17 is to cause a com- -ponent of shocks-having a lateral direction L to .be applied to the spring 22 and thereby 20 be absorbed. Thus, in case a lateral shock, or any lateral component of a shock, is applied to the slipportingbody 11, the in 12 {will be displaced laterally with relation to if the sleeve 18 due to the inertia of the sup- 3 ported body-'10. As this displacementtakesplace, it be observed that the sleeve 18 will be forced downward by reason of the inclined conic bearing surfaces between the sleeve and pin, whereby spring 22 will be 5 compressed. After the energy'of the shock has been dissipated'the sleeve 18 returns to its original position which is defined by its one-shaped seat. The osition of the sup- P ported body is thus do itely defined ina -lateral direction. In a vertical direction the position of the supported body is defined by the seating. of sleeve 18 on flange 21-.

" k While we have described our invention as embodied in concrete form' and as operating '40 in a specific manner in accordance with the rdvisionsof the patent statutes, itrshould E understood that we do notlimit our in-' v ntion thereto. since various modifications thereof will suggest themselves to those 5 skilled in theart without departing, fromthe spirit "of our invention, the scope of which isset forth in the annexed claims. ,What'we claim as new and "desire to secure by Letters Patent of the United States, 1s,-

Y 1. A resilient support comprising two members carried by the supported and sup- .inemberv encircling said pin cooperating porting bodies respective and resilient means for holding said members in engage- 5 ment, the coopgrating bearing surfaces of said members in inclined w1th respect to the direction of t e iorce applied by said resilient means, whereby lateral shocks are applied -to said resilient means.

1 2. A resilient suplport comprising two ufiembers carried .by t e supported and supporting. bodies 3 respectively, and resilient means for holding said members in engage ment, the cgoperating bearing surfaces of said members being beveled, whereby lateral shocks are applied to said resilient .means.

3. A resi ient support comprising two members ,carriedby the su ported and su porting bodies respective one of sing members being provided with a cone-sha sea-t for the other member, and resilient means for holding saidmembers in engagement, whereby lateral shocks are applied to said resilient'means.

v 4. Av resilient support comprising two members provided with inclined cooperating bearing surfaces, a connectionbetweenone of said members and the supporting body, a

ieldable connection betweenthe other memer and the supported body,- and resilient means carried by said first member acting on the supported body so as to hold said inclined surfaces in engagement and absorb shock-causing lateral displacement thereof.

5. A resillent support comprising two members provided with cone shaped cooperating bearing surfaces, a connection between one of said members and the supporting body, a-seat on the supported body for the other member, a spring for holding said second member to said seat, and a second spring carried bysaid first member actin on said supported bod in opposition to sai first spring so as to, old said members in engagement.

'6. A resilientsupport comprising a pin depending from the supporting body pro.- vided'with a cone-shaped portion, a sleeve carried by the supported body cooperating with said cone-shaped portion, and a spring on said pin acting on said supported body so as to hold saidsleeve seated on said coneshaped portion.

7. A resilient support comprising a pin depending from the sup orting body pro-- vi ed with acone-shape portion, a sleeve on said pin cooperating with said coneshaped portion resiliently mounted on the supported body, and a spring on said pin acting on the supported body so as to hold k i said sleeve seated on said cone-shaped p.0r-"

tiont 8. A resilient support comprising a pin de ndingfrom the sup oftin body providfd with a cone-shaped porti on, a sleeve inengagement with ,said cone-shaped portion. Y

f In witness whereof, we have hereunto set our hands this 20th day of May, 1924.

a EDWARD M. HEWLETT.

WALDO W- WILLARD.

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