US1398881A - Wiggler - Google Patents

Description

ALPHA E. MOORE, OF THORNTOWN, IND-IANA.

WIGGLER.

Spccfication of Letters Patent.

Paten teol Nov. 29, 1921.

Application filed October 9, 1920. Serial No. 415,922.

To all whom it may conccrn:

Be it known that L. ALPHA E. Moore, a citizen of the United States of America, and resident of Thorntown in the county of Boone and State of Indiana, have invented certain new and useful Improvements in VVigglers, of which the following is a specification.

This invention relates to wigglers, the said invention having for its object the prov1- sion of a device for the uses of these instruments comprising comparatively few parts, capable of being folded one with relation to the other and being convenient for transportation by carrying the same on the person.

A further object of this invention is to produce a device of the character indicatedin which a ball and socket connection is effected and in which the ball is held frictionally against movement except when power is applied to overcome the frction.

A still further object of this invention s to produce a stock and socket member, the said socket member having a slot and the said stock having a coinciding recess to form a clearance for the pin or spindle so that the device can be' folded for convenient storage or transportation; the said invention fur-- thermore being of inexpensive Construction while at the same time it is efficient and satisfactory in use.

With the foregoing and other objects in View, the invention consists in the details of Construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to accompanying drawings forming part of this specification wherein like characters denote corresponding parts in the several views, and in which- Figure 1 illustrates a View in elevation of the complete device with the pin or spindle extended;

Fig. 2 illustrates a similar view with the parts nested or folded;

Fig. 3 illustrates a longitudinal seotonal view through the socket member and shank;

Fig. 4: illustrates a sectional view on the line corresponding with the line 4-4 of Fig. 3;

Fig. 5 illustrates a sectional view on the line corresponding with the line 5-5 of Fig. 3, and

Fig. 6 illustrates a View of the ball and spindle detached.

In these drawings 7 denotes a shank and 8 a split socket member, the said socket member being preferably provided with slits such as 9 and ll which divides the socket member into a. series of segmental sections which are resiliently held with relaton to each other by reason of the fact that the socket member merges with the shank and is an integral structure therewith.

The socket member is further provided with a longitudinally extending slot 10 consttuting a clearance in which the pin or spindle 12 may be inserted to bring the parts into the nested relation shown in Fig. 2. The element 12 has a friction ball or boss 13 which fits in the socket and is held thei-ein by reason of the pressure of the segmente of the socket thereagainst, but, of course it is free to move or rotate so that the parts may be caused to operate while the device is being used for determining locations of Centers and the likeas is usually done with a device of this character. The shank has a longitudinally extending recess 14 which is in line with the slot 10 of the shank and this recess forms a clearance in which the pin or shank lies and in which it is practcally embedded so that the pointed end thereof will not come in contact with objects which would tend to move the parts with relation to one another. The shank is further provided with a transversely disposed recess 15 forming a clearance for the insertion of the finger nail of a person who would insert the nail under the shank fo'r the purpose of manipulating the same and moving it from onepositon to another.

The fact that the shank is formed with the resilient segments makes it unnecessary to employ other instrumentalities for frictionally retaining the parts in different positions of adjustment and it serves to retain the ball in the socket when the device is not in use.

I claim:

l. In a wiggler, a shank terminatng in a socket, the said socket having slits formng segmental bearing members, a ball frictionally held by the said members in the socket, a shank rigid with the said ball and extending therefrom, the said shank having a long tudnally extending recess, and the said socket having a slot formng a continuaton of the recess to receive the shank when the parte are in folded positions.

2. In a wggler, a shank having a socket, the said socket having slts :t'ormng integral hearing members, a ball frictonally held by the said members in the socket, a shank rigd With the said hall and extending therefrom, the said shank having a' longitudinally eX- tendng recess,' and the soeket having :L slot fornng contnuaton of the recess to receive the shank When the parte are in folded positions, and the said shank having a transve sely dsposed recess me'gng With the longtudinaly extendn recess.

ALP .A E. MOORE.

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