US533451A - Expanding plug for arbors of paper-rolls - Google Patents

Description

(No Model.)

W. R. FARNSWORTH. EXPANDING PLUG FOR ARBOBS 0]? PAPER ROLLS. No. 683,451. Patented Feb. 5, 1895.

N 1 4 A 1 f s w Q w Zw W UNlTED STATES PATENT @rrrcn.

W'ILLIAM R. FARNSWORTH, OF TURNER/S FALLS, MASSACHUSETTS.

EXPANDING PLUG FOR ARBORS OF PAPER-ROLLS.

' SPECIFICATION forming part of Letters Patent No. 533,451, dated February 5, 1895.

Application filed June 5, 1894. Serial No. 513,534- (No model.)

T0 at whom it may concern:

Be it known that 1, WILLIAM R. FARNS- WORTH, a citizen of the United States, residing at Turners Falls, in the county of Franklin and State of Massachusetts, have invented new and useful Improvements in Expansible Plugs for the Arbors of Paper-Rolls, of which the following is a specification.

This invention relates to improvements in shafts having expanding devices whereby the shaft may be readily setwithin the tubular core of a roll of paper so that the shaft temporarily becomes the journal or arbor for the roll as desired while the roll is being made up at the mill, or while the paper is being used on a printing press.

, The purpose of the present improved device is to accomplish more efiectually, and by simpler and less expensive means, the results in a manner attained by the employment of the expansible shaft set forth in Letters Patout of the United States granted to me September S, 1891, No. 459,200, for improvements in expansible shafts, and the invention consists in constructions and combinations of parts all substantially as will he hereinafter fully set forth and pointed out in the claims.

Referenceis to be had to the accompanying drawings which form part of this specification, and in which- Figure 1 is a longitudinal sectional view through a tubular cored paper roll andin part through the arbor and one of the expansible plugs or devices which surround the arbor, said view being also in part a side view of the shaft and the other plug of the pair of plugs usedin conjunction therewith. Figs.2 and 8 are cross sectional views on lines 2-2 and 3-3, Fig. 1. Fig. 4 is a perspective view of one of the segments, and Fig. 5 is a perspective View of one of the sliding tapered bars.

Similar characters of referenceindicate corresponding parts in all of the views.

In the drawings :rrepresents the relief pa per having the tubular core 00 A represents the tubular body of the plug which is adapted to be rcmovably fixed to the shaft 0. The said cylindrical tubular body A has at its inner end the external flange 0, and the several longitudinal grooves or ways,

able in said ways b. Each bar comprises at one-half, or other suitable portion, of its length the transversely dovetailed and longitudinally tapered outstanding member at,

while its shank or other half has at its outer side the series of screw-thread-sections f, f.

D, D represent the segments which along theirinner sides have dovetail Ways 9 therein, within which the outstanding dovetailed portions of the bars B engage. The segments have their opposite sides curved approximately corresponding to the inner peripheral contourof the opening through the roll, or the core thereof.

The aforesaid tubular body, A, of the plug has intermediate between its ends the outstanding separated wings or flanges a, which are arranged between the aforesaid longitudinal ways 6. These prevent the segments from having any outward endwise motion while they may have no inward endwise motion by reason of the abutment of their flangesj,

against the end of the roll or by the contact of their inner ends against the annular flange, c, of the tube A. Next outside of the said wings, a, a of the tubular body, A, and concentrically surrounding the latter is the circular nut G, the teeth of which screw engage the sections of threads f of the slide bars, B, B, and this nut is provided-with spanner holes or is otherwise adapted to be conveniently turned by any suitable implement. Next outside of the nut G is a collar, on, which tits about the tubular body, A, being secured thereto, preferably removably as by the set screw n. This set screw also projects radially inwardly through the tubular body, A, to temporarily hold the plug as a whole in its place upon the shaft.

The nut lying between the wings, a, of the tubular body, A, and the collar, m, thereof, of course can have no endwise movement, while its rotational movement will effect the end- Wise movement of the tapered slide-bars, B. The nut holds the slide bars to the body and the slide bars, by reason of the dovetail engagements which they have with the segments, keep the latter from radial displacement. The said collar has longitudinal apertures internally, one of which is seen at m to accommodate and permit the outward movement of the slide bars.

tiallyas described; may'he readily utiiizedas i he journal fora; rolls-t" papen forinstanee:

rthe followirig manfnefiitbeing understoodthat one efthe plugsmaybemove; eudwise eieegaee rift frem the siiaftw The plugs'are contracted arid the T rightf hand; message; wardly alongfiai id 'ofii the 'i'shaft so that the *shaft may he 3 brought eudwiseinto and to through the rollftoplaee its plug iwhiehis at f its-other endipertioe and which hasnot u-ee 7 essa-rily' been i lo ""ened within the: matter Q 5 tiieireiirepehi nge Il -he -;sesond--plug is new:

- f brought ra iaee y '{Lmeutliot theopening at the other ends-t the i rel i I g -two pl-ugs are now-expanded hy iorcingethe segments ratiiaily outward through the ma? -ri"piilatioii errata reader portions; and tapered portions, ta "erefd segineatshaving dovetaiiwaysiawhieh am ere-e portions eti the sate barsjhave slid.

113g" ehgagernenta the hrrtisurroua ding; and iewieegagtegestimates parts'ef tlie slidie are andmeansforpreventing endwise' more hientiiefthei'iuut substautially;asdeseriioeda 3 I The combinatioh with the tubular bedy .r, haeing zextereauy' the longitudinal ways,.e the slide bars guided in said ways having the beveled portions, and the threaded portions, the segments having the dovetail slide ongagement with the beveled portions of said bars and the nut surrounding the threaded portions of the bars and holding the bars against radial displacement, While said bars by their dovetail engagement with thesegments, prevent the latter from radial displacement, substantially as described.

3. The combination with the tubular body having externally therein the longitudinal ways and the bars B sliding longitudinally in said ways which have the outstanding tapered and dovetail portions,d, and the threaded portions,f, of the wedge-formed segments having the dovetail grooves in which the portions, d, ofthe said bars fit, and with which segmental if A shaft equi-ppedwithatheplegs-euhstam.-

engagedrtor preventing: their. cutwardeud, a =55 r I i -;itl1reafted extremities otthe' bars and mea g; I

on the a shaft and within the I I I I screw: threads, the segments D ha r-tug esecured by its set serew; ahhe;

r niits sefiieiently far and. 1

g I I y;the len gitudiuaiways, iof: ide bjars guided ia said ways i whieh 'have prejeetions which;are providedjoh the tubes z wise movement the-nut surrounding-the at, andsharia; f,haying;the,1-seetionsof i the dovetaii;engagemeutsawit the; saidbai the;nutzsurrouudingau n eiggalgemgng the; threaded -sh:ah k e bars andat; one edge t shearing againstsaidjwiegs,and the eeliarse j ,e I "eureduporrtheeutere id:ei-thetubeandeon ;f l V stituting the other side beariugtarsaidput;- m:

:suhstautiallyasdescribed; 5. ilhe combination withrthe' tubular core i is! E 1 i and thgersha fthaviag thereon; I f i e as" hngteeittreae rid serewjenga mg ethegthr'eadect ertiens; otjthe Qhars, fan

WILLIAM R. FARNSWVORTH.

Witnesses:

O. W. HOSMER, W. L. SALMON.

e; The eombinatioa withfthe tube Ahatingi intermediatebetween its endsthe separated WllIgSiQl. tlaugeajmand the external lougi; a l 2 g 1 a :T tudinaliwayseh,rangingbetweeu said win gs r a j[ cit-the bars-B setjtogslideiasaidgways 3 nd, .i havingtheeutstandinglongitudinallywedge i :fcrmeaani trausversely detet tileii stame 1 its; [11

Images