US1333707A - Lathe-dog and the like - Google Patents

Description

C. A. DIES.

LATHE DOG AND THE LIKE I APPLICATION FILED APR-I9. 1sfs.-

I 1,333,707. Pat ntedMa 16,-1920.

I j shaped body member. of the lathe-dom And V Lathe-Dogs and the like,

' lowing is a specification.

LATHE-DOG AND inn-Like;

To all'whom'z'tmag concern: 7 f

Bev it known that I, CHARLES, A. Dms a citizen of the'United' States of America; and a resident of Chicago, in thecou'nty of Cook, State of Illinois, have invented cer tain new and useful Improvements in ofwhich the 01- This invention relates to lathe-dogs and the like, in which a radially moving 'and;

screw impelled jaw is adapted to engage and hold cylindrical -work within the ring the present improvement has for its object to provide a simpleand eflicient structural forh mation and association of a lathe-dogparts, whereby dangerous projections on the exterior of the lathe-dog is avoided and 1 strong and substantialjawiactuating -mech-f tive of the adjusting means of the tool.

anism provided, all as'will hereinafter'more fully appear; a I o p f In the accompanying drawings: ,7

Figure 1, is an elevation of a'lathedog embodying the present invention. v Fig. 2, is a sectional elevation in perspec- Fig. 3, is a detail perspective view ofthe holding plate member. V l

Similar reference numerals indicate like parts in the severalviews. Referring. to the drawing, 1 represents the main body of'the lathe-dog having the usual IOViLlI'lIIg form shown, and provided at one Q end with a laterally extending prong 2 vbe described.- 45,

in the aforesaid circularbore of the tubular enlargement?) of the lathe-dog body,and

adapted for operative engagement with the" face plate or other like part ofalathe, At

the end opposite to the one carrying the prong 2, said main body 1 is formed'with a tubular enlargement 3, the cylindrical bore of which is disposed radially tothe center of the work receiving opening ofthe lathe 7 dog, asshown, and, adaptedto contain the movable jaw actuating 'rnechanism now to 4 designates an operating sleeve arranged having at its innerend an external annular abutment flange or collar 5, adapted tobear against the inner end of said tubular en- 7 largement 3, as shown. At its outer end, the operating sleeve 4 is formed with a- Y 7 square or like non-circular recess or orifice 6,

Specification of Letters Patent." Patented Application fi1ed Ap'ri119, 1919., Seria1No.291 205 i p a j aw member.

" for operative engagement with asuita'ble hand wrench, by which forcible adjustment Mar. 16, 1920.

of the parts; is effected. Between said orifice 6 and thelnner end of the sleeve 4, the bore thereof is screw-threaded for operative engagement with the radially the lathe-dog nowto be described.

moving jaw of r The radially moving j aw above referred r to, comprises an outer cylindrical. screw- 7 threaded head 7 having operative engage- 1 m'ent wlthothe screw-threaded bore of the sleeve 4, aforesaid,and a square or'like' non cross-sectional area than that of the head '2'.

In the present construction the non-circular a shank port1on8 has movement n: a corre v spondingly' formed orifice in a plate member circular inner shank portion 8, of a less) 9 disposed at the innerend of the operating sleeve 4, aforesaid, and fixedly held b the main body 1 of the lathe-dog, as shown.

VViththe aboveidescribed construction at '7 rotation of the operating sleeve is adapted toimpart radial movement to the gripping jaw 7, 8, aforesaid, in that the shank 8 of said jaw is held from rotation with said sleeve 4, and abutting against the main body sleeve 4, by the holding plate 9, aforesaid 10 designates a milled collar, having a drive fit on the outer end of the operating l of the lathe-dog, to hold said opera-ting.

sleeve inplace. In addition, said collar pr vldes means for an 1n1t1al operation of the] i parts byv the fingers of the operator in applying the lathe-dog'to the work, and in a final operation of removing the lathe-dog,

from said-work. r 7 Y Having thus fully described my, said in- 'vention' what I claim as new and desire :to

secure by Letters Patent, is

' 1.111 a toolof the type described and in V p which any operating sleeve is revolubly- ,mounted' in the tool body'and' isform'ed with acscrew-threaded bore, the combination of'a non-revoluble jaw member formedwith a non-circular shank and an enlarged screwthreaded end-portion engaging the bore of said operatin sleeve,"and a separate plate member attached to the tool body at an end of the operating sleeve and j'having a noncircular guideorifice for the. shankof the In a tool of the type described and in which an operating sleeve is. revolublyc mounted in theiool body and is formed with a screw-threaded: bore zindjwvith fixed abutment collars at each end, the eombination of a non-revoiuble jaw member formed. with -21 non-circular shank 411d an enlarged screw-threaded end portion engaging the bore-of said operating sleeve,' and a sepa V of the jaw member.

rateplate member attached to the tool body at an end of the operating" sleeve and having a non-circu1ar guide orifice for the shank 10 Signed at Chicago,

Illinois, this 12th day of April, 1919.

CHARLES A. DIES.

Images