US538434A - Winding-shaft for paper-rolls - Google Patents

Description

(No Model.)

' Patented Apr. 30

3? m MN MN mllmwlki ililwilixqfl WWFLIII NNM m 4mm. b

.. PHUYO-LITNduWASHlNGION, me.

.collars 4 having inner cam faces 5.

TED STATES PATENT Fries.

CHARLES P. SMITH, OF BELLOWS FALLS, VERMONT. Q

WlNDlNG-SHAF T FOR PAPER-ROLLS.

SPECIFICATION forming' part of Letters ZEjatent No. 538,434, dated. April 30, 1 s95.

' Application filed November so. 1894. Serial No. 530,428. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES P. SMITH, acitizen of the United States, residing at Bellows Falls, in the county of Windham and State of Vermont, have invented a new and useful Winding-Shaft for Paper-Rolls, of which the following is a specification.

My invention relates to a winding-shaft especially adapted for use in forming rolls of paper and similar material, and the objectin view is to providemeans whereby the shaft may be contracted after the formation of the roll, in order to facilitate the removal of the roll from the shaft.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be par ticularly pointed out in the appended claims. In the drawings, Figure 1 is a side view of a shaft constructed in accordance with my invention, the same being expanded. Fig. 2 is a similar view with one or more of the crosssectionaliy Q segmental sections of the roll omitted, the roll being shown expanded. Fig. 3 is a similar view showing the roll contracted. Fig. 4 is a detail cross-section on the line 4 4 of Fig. 1. Fig. 5 is a detail section of one end of the shaft, with the parts shown in positions indicated in Fig. 2; Fig. 6 is a similar view of one end of the shaft, with the parts shown in the position indicated inFig. 3. 7 1 represents a core which is cross-sectionally angular and is provided at intervals with beveled or inclined surfaces 2, the ends of the core being reduced and rounded to form spindle-portions 3 to which are secured the fixed On one of the spindle-portions is arranged a gear 6 which may be replaced by a chain-wheel or belt-pulley, or other equivalent device, said gear, chain-wheel, or pulley being the means whereby rotary motion is communicated to the core: The shell 7 of the shaft is mounted to slide upon the core, and for this purpose is provided with terminal sleeves 8, having inner angular bosses 9 to the flat sides of which are secured the extremities of the cross-sectionally segmental sections 10, the sections being provided with terminal openings 11 through which ex tend guide-pins or screws 12, the pins or screws engaging the said bosses. This construction provides for radial movement of the sections inner surfaces with beveled or cam-faces 13,

the inclination being in the opposite direction to that of the beveled or cam-faces 2 on the core, whereby when the shell is moved in one direction (namely, the direction indicated by the arrow in Fig. 2) the shell-sections are forced radially outward, thus expanding the shaft. When the shell is moved in the opposite direction to that indicated by the arrow in Fig. 2, the shell-sections are adapted to approach the center of the core and thus contract the sh aft. In order to attain this longitudinal movement of the shell, to contract and expand the shaft, I employ rotary cams 14 and 15, which are arranged, respectively, between the ends of the shell and the contiguous fixed collars 4, the cam-faces of said cams being in operative relation with the cam-faces of said collars and the smooth faces of the cams'bein g in contact with the surfaces of the sleeves 8. \Vhen the cam 14 is turned in the direction indicated by the arrow in Fig. 1, the shell is moved in the direction indicated by the arrow in Fig. 2, to expand the shaft, and when the cam 15 is turned in the direction indicated on said cam in Fig. l, the shell is moved in the opposite direction to that indicated by the arrow in Fig. 2, thus contracting the shaft.

The cams are provided with sockets 16 to receive studs or projections on a wrench. Any

suitable form of wrench may be employed.

From the above description it will be seen that when the shaft is to be used to form a roll, it should be expanded by the means provided for that purpose, and after the roll has been completed it should be contracted, thereby relieving the pressure of the surface of the shaft upon the inner surface of the roll and allowing the roll to be withdrawn by sliding the same longitudinally. The surface of the shell is preferably scored or roughened as shown clearly in Fig. 1, in order to increase the friction during the winding or formation of the roll.

It will be understood that while the im- ICO the core, and cross-sectionally segmental sections connected to said sleeves by means of radiallydisposed guide-pins or screws, said sections being provided with beveled or camfaces to co-act with those on the core, and means for sliding the shell longitudinally, substantially as specified.

2. In a winding-shaft, the combination of a cross-sectionally angular core having spaced beveled or cam faces, a shell comprising terminal sleeves mounted to slide upon the core, guide-pins or screws radiating from angular bosses on the sleeves, and shell-sections connecting said sleeves and provided at their extremities with openings mounted to slide upon the said guide-pins or screws, said'sections being provided with beveled or cam-faces to co-act with those on the core, and means for sliding the shell longitudinally, substantially as specified.

3. In a winding-shaft, the combination of a cross-sectionally angular core provided with spaced beveled or cam-faces and terminal spindles, a sectional shell having terminal sleeves mounted to slide upon the spindle-portions of the core and radially movable sections connected to the terminal sleeves and provided with cam-faces to co-act with those on the core, fixed collars spaced from the terminal sleeves of the shell and provided with inner cam-faces, and cams mounted to rotate upon the spindles between the terminal sleeves of the shell and the cam-faces of the fixed collars, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of two witnesses.

CHARLES P. SMITH.

\Vitnesses:

WARREN MOORE, FRANCIS A. BoLLns.

Images