US872480A - Spool. - Google Patents

Description

PATENTBD DEG. 3, 1907.

M. TILDBN.

sPooL.

` APPLICATION FILED MAB.. 2, 1966.

. body; these modifications Aaving MARSHALL TILDEN, OF WILLIMANTIC, CONNECTICUT.

SPOOL.

Specification of Letters Patent., i

applicati@ nea March 2.1906. serial No. 303.816.

Patented Dec. 3,1907.

To all whom it ma/y concern:

Be it known that I, MARSHALL TILDEN, a citizen of the United States, residing at Willimantic, in the county of Windham and State of Connecticut,- have` invented a cer-- tain new and useful Improvement in Spools, which improvement is fully described in the following specification, reference Ybeing also made to the accom anying drawings.

Thel chiefv aim o this invention is to improve that class of spools in which the barrel or body portion is formed by rolling up a ribbon of paper, or the like material 3 said I ribbon being so pasted or glued as to form,Y when finished, a solid, and practically homogeneous structure, as is clearly described in Patent No. 611,343, issued to me September 27th 189s. My .present invention seeks to produce a spool, or the barrelportion of a spool, formed of a piece of paper wound a plural number of times upon itself, thus producing a tube, or spool body7 having slitted ends that may be readily expanded and secured by wedging, or otherwise, in separately formed heads.

In order to explain my said invention clearlyl have rovided the annexed sheet of drawings, inw ich Figure 1 is a view of a short section of a ribbon of paper suitably formed to carry into effect my present invention. Figs. 2 and 3 are, res ectively, side and end views of a spool body ormed of said ribbon, and Fig. 4 isa view of a finished spool. Fig. 5 shows said spool partly in central, longitudinal, section in order to disclose one method of securing the flanged head to the cylindrical bodyof the spool. Fig. 6 is an vend view of the spool shown in Fig. 5. In Figs. 7 and 8 I have illustrated,partly in section, modi-` fied means for securing the s ool head to the articularly in view to provide a spool inw ich theA slitted ends of the spool body will be concealed from view.

In these drawings the letter a indicates a ribbon of paper, or the like material, which is to be pasted and coiled upon itself to produce a stiff and cheap Aspool-body, and al de' notes slits in one or both of the edge portions of said ribbon, said slits Vbeing located with mathematical precision, and in such relation to each other that, when the paper is coiled upon itself two or more times, certain redetermined slits or narrow openings wil result in the finished cylindrical structure at its end portions.' lThe same result may be attained by slitting said tube or s ool body after it is formed, but Ipreferab y slit the ribbon as described. This construction provides a body portion having longitudinally extending, laminated, flexible, tonguesl at each end of the said body.

As I have already stated, the heads of the -spool of this present invention are made' separately from the body and said heads (indicated by the letter t) may be made of turned wood or ycompressed pulp, with a central opening whose inner end will just receive the spool body and whose outer end is somewhat greater in diameter, in order that the slitted end portions of said body may be securely locked in the head by wedging, as I will describe, referring now to the form of spool shown in Fig. 5 of the drawings. The body a is first sli ped into the head until the free, slitted, -en of said body is flush with the outer face of the head and,vpreferably, the body is glued before thus entering it in the head. A slightly tapering bushing c, of wood or other suitable material, is then forced into the otherwise open end of the body, thus expanding the slitted portion and clamping it vides a spool whose ends appear as seen in Fig.'6. v

If it is desired to further protect, and hide from view, the silts a1 the outer end of the bushing c may be formed with a definite enlargement or fiange c1 atits extreme outer end, as seen in Fig. 8', that fills vthe central opening in the spool head; in which case the outer end of the slittedbody would be slightly counterbored, or compressed, so as to form a knife edge at said outer end (see Fig. '8), or the bushing may be shortened, as in Fig. 7, leavingA room for the insertion of a disk d that williill the openingin the end of thej head and lthus insure a neat the spool end.

The improved method of forming spools described by me inthis present specification provides a completed structure of great strength, at very small cost, and of extreme lightness. 1

.Having thus described my invention I claim as new and wish to secure by Letters Patent Y 1. A spool body comprising a strip of aperl coiled a number of times upon itself an havappearance to firmly to the. head. This construction proing slits in the ends of each coil which register with slits in the ends of the other coils of said body. y

2. In a spool, a body portion comprising a strip of paper coiled a number of times upon itself and having slits in the ends of each coil Which register With slits in the ends of the other coils in combination with heads secured to the slitted body.

3. In a spool, a body portion comprising a strip of paper coiled a' number of times upon itself and having slits in the ends of each coil which register with slits in the ends of the other coils in combination With heads secured to the slitted ends, and means consisting of a tapered bushing for securing the said body in said heads all being substantially as speciiied.

4L. In a spool, a body portion comprising a strip of paper coiled a number of times upon itself and having slits in the ends of each coil Which register with slits in the ends of the other coils in combination with heads secured to said slitted body7 and means for covering the otherwise exposed slitted ends Y of the body.

5. In a spool7 a body portion comprising a strip of paper coiled a number of times upon itself and having slits in the ends of each coil which register With slits in the ends of the other coils incombination with a head secured to said slitted portion, a bushing` in said body, and means for covering the other- Wise exposed slitted ends oi? the body consisting of disks inserted in the said heads.

MARSHALL TILDEN.

Witnesses:

E. E. LYMAN, D. A. GRrGGs.

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