US1119428A - Paper-roll-holding means. - Google Patents

Description

M. L. HIRSCH & G. W. BLAGKSTOCK. PAPER ROLL HOLDING MEANS.

APPLICATION FILED FBB.6,1U18.

1,1 19,428, Patented De0.1,1914.

WITNESSES 4 lNIfE/YfiRS M is 04 hw'ae/ev Z .7: M a7. V/lllvrney 8' UNITED STATES PATENT OFFICE.

MONTEFIOBE L. HIRSGH AND GEORGE W. BLACKSTOCK, 0F BALTIMORE, MARYLAND; SAID BLACKSTOCK ASSIGNOR T0 SAID HIRSCH.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Original application filed February 21, 1912, Serial No. 678,984. Divided and this application filed February a 6, 1913. Serial No. 746,613.

To all whom it may concern:

Be it known that we, MONTEFIORE L. HmscH and Gnoucr. W. Bmcxs'rocn, citizens of the United States, residing at Baltimore, in the State of Maryland, have invented new and useful Improvements in Paper-Roll-Holding Means, of which the following is a specification.

Our invention pertains to web roll holding means, and contemplates the provision of peculiar and practically advantageous web roll holding means designed more especially for use in the paper bag machine constituting the subject matter of our contemporary application, filed Feb. 21, 1912, Serial Number 678,984, of which this application is a division.

The novelty, utility and practical advantages of the present invention will be fully understood from the following description and claims when the same are read in connection with the drawings, accompanying and forming part of this specification, in which:

Figure 1 is a view, partly in section and partly in elevation, of the rear end of the machine referred to; the web-roll or roll of paper being shown in diametrical section. Fig. 2 is an enlarged detail section. Fig. 3 is an enlarged detail section on the line 33 of Fig. 1. Fig. 4 is a detail view taken at a right angle to Fig. 1 and showing the friction bearing for shaft 1.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

The main frame of the machine may be of any construction and design consonant with the purpose of our invention. At the rear end of the main frame is arranged a transverse shaft 1 on which is mounted a roll of paper 2; a continuous strip of paper being drawn from the said roll during the operation of the machine, and the roll 2 and shaft 1 being rotated in consequence. At one end the roll 2 being against a suitable abutment on the shaft 1, the said abutment being preferabl in the form of a plug 3 that is feathere on and adjustable endwise of the shaft and is backed by an adjusting wheel 4, threaded on the shaft. At 5 the shaft 1 has fixed thereon a friction drum which bears partly in a fixed block 6 and partly in a movable block 7, backed by a screw 8. By turning the screw 8 outward to permit of movement of the block 7 away from the block 6, the friction on the drum 5 and the retardation of the 1011 2 is lessened as the roll is diminished in diameter and the leverage exerted by the pull of the paper off the roll is decreased. In this way the paper strip or web drawn off the roll may always be kept under proper tension to assure perfect working of the machine. The paper roll 2 is tightly held against the abutment 3 and thereby fixed with respect to the shaft 1 by a plug 9, adjustable lengthwise on the shaft. This plug 9 is kerfed at 10, and in the said kerf is pivoted a pawl 11 which serves by engaging teeth 11 of the shaft 1 to hold the plug against outward movement. Obviously in positioning the plug 9, it is simply necessary for the op erator to move the same inward to the extent desired and seat the pawl 11 in one of the interdental spaces of the shaft when the plug will be strongly and safely held against outward movement. For the purpose of adjusting the shaft 1 and the paper roll 2 lengthwise and adjustably fixing the roll in proper alinement, we provide a notched and laterally movable bearing 12 in which the circumferentially-grooved portion of shaft 1 is seated, and we also provide an adjusting screw 14 that is threaded in the adjacent portion of the main frame and is journaled and held against endwise movement in the bearing 12. Obviously by turning the screw 14 in one direction, the shaft 1 and roll 2 will be moved as a unit toward the right and by turning the screw in the other direction the shaft and roll will be similarly moved toward the left. From the roll 2 the strip or web of paper is passed upwardly as shown.

It will be manifest from the foregoing that the outward pressure exerted by the roll of paper against the plug 9 will operate to securely hold the pawl 11 in one of the interdental spaces of the shaft 1, and hence there is no liability of the plug being casually released while the shaft 1 and the roll are being rotated by the drawing of paper from the latter. When, however, it is desired to position the plug 9 at a different point in the length of the shaft 1,

the same can be readily accomplished after hammer blows are imposed on the upper arm of the pawl 11 to lift the lower arm thereof out of the particular interdental space of the shaft. When the plug9 is pushed inwardly to position, the pawl 11 will obviously ride over the beveled teeth of shaft 1 and will seat in the particular interdental space presented to it when plug 9 is in the position desired.

Having described our invention, what We claim and desire to secure by Letters-Patent, is

1. The combination of supporting means, a shaft mounted therein and having a longitudinal series of teeth beveled at their outer sides, an abutment on the shaft adapted to rest at one end of a roll of paper, a plug movable lengthwise on the shaft and adapted to be positioned at the opposite end of the roll and having a kerf in the outer portion of its outer end, and a pawl pivoted at an intermediate point of its length in said kerf and to the plug and having an outer arm positioned to ride inwardly-over the teeth and to seat inthe interdental spaces of the shaft, and also having an inner arm that projects beyond the outline of the upper portion of the plug and is adapted to be inmates struck and forced downwardly by a ham mer or the like.

2. The combination of supporting means, an endwise movable shaft having a circum ferential groove adjacent one of its ends and a friction drum adjacent its opposite end, a block arranged on the supporting means and forming a bearing for the friction drum at one side of said drum, a movable block supported by the supporting means and affording a bearing for the friction drum at the opposite side thereof, a screw bearing in the supporting means and backing the movable block, a laterally movable bearing; in which the circumferentially-grooved portion of the shaft is seated, and an adjusting screw threaded in the-supporting means and journaled and held against endwise movement in said bearing for adjusting the shaft and the friction drum in the direction of the length thereof.

lin testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

MONTEFIORE L. HIRSCH. GEORGE W. BLACKSTOGK. Witnesses:

WM. D. lPonLTNnY, G. F. Smnvrz.

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