US1630791A - Spool and method of making the same - Google Patents

Description

May 31, 1927.

- 1,630,791 v s. R. GLEASON SPOOL AND METHOD OF MAKING THE SAME Fil ed Dec. 1926 Patented May 31, 1927.

UNITED STATES PA ENT. o F1c STEPHEN R. GLEASON, OF LOWELL, MASSACHUSETTS, ASSIGlSI'OR T WALTER L. 1

PARKER COMPANY, A. COPARTNERSHIP CONSISTING OF TH. HUTCHINSPABKER AND ALLAN :o. PARKER, or LOWELL, msseonusnrrs.

sroor. 'AND itn'rnon or MAKING-THE sum.

' Application filed December 8,1926. Serial No. 158,824.

The present invention relates to an improved spool and method of making the same.

v The object of the invention'is to produce an improved construction of spool which will be strong, durable and inexpensive. To

these ends theinvention consists in the spool hereinafter described and particularly defined in the claims.

In the drawings illustrating the preferred form of the invention, Fig. 1 is an elevation of a spool, showingone end in longitudinal, medial section; Figs. 2 and 3 illustrate de tails of construction; Fig. 4 is an end view of a spool, the outer portion of the head be-. ing broken away; and Fig. 5 is a longitudinal, medial section like that illustrated in Fig. 1, of a modified form of the invention.

The illustrated embodiment of the invention is described as follows: The barrel 1 is made of wood, and has a longitudinal central hole 2. The end of the-barrel is provided with an annular extension or projection 3, which is received in an annular vgroove in the inside of the vulcanized fibre head4. The head is provided with a central hole which is cylindrical about half the thickness of the head and tapered .or f rusto-conicaled for the remainder of the thickness of the head on the outside. A reinforcing ferrule 5 is made of brass or other metal and has a frusto-conical head portion 6, which is received in'the hole in the head. The barrel of the ferrule is tapered at 7, 5 and provided on its inner end with a ragged edge 8 which forms tooth-like projections.

A bushing or plug 9 of dog-wood is employed'inside of the ferrule and barrel ofthe spool, which. has ahead 10 of frusto-comcal 40 form which fits the frusto-conical head of the ferrule. The plug is provided at its center with a spindle hole 11, The parts are assembled as follows: The head is fitted to the barrel, and the ferrule 5 is inserted in the hole in the head. The head and ferrule are then associated with the barrel in the position shown in Fig. 1, but

it will be observed that the'tapered portion 7 of the ferrule will then extend,a conical surface inwardly into-th'ehole in the barrel. Then the plug 9 will be forced in, and the act of being forced intothe hole in the ferrule and barrel it will expand the tapered portion 7 of the ferrule to a. cylinhave strongly adhesive .drical form, as shown in Fig. 1', therebyv forcing the projections ofthe ragged e e of the ferrule into the wood of the barrel 1. Inasmuch as the ferrule is made of thin,

metal, its inner end will be cracked, perhaps,

in places, and thus irregularly shaped p0r-' t'ions of the inner end of the ferrule will be forced into the wood of the barrel, firmly bonding them together. The parts are covered with cement when they are assembled, and' heavy pressure is exerted upon the parts in order-to force them tightly together, and then they are held underpressure until the cement sets.

' The tapered end of the bushing is weakest to perform its function of holding the head of the spool in place at its head 10,

which, in the absence of the reinforcing ferrule, would be liable to be sheared off by the endwise pressure of the materiahwound on the spool, or by blows against thehead from one side or the other. l Thus, if a blow were given the lower edge of the left hand end of the spool, as shown in Fig. 1, it would tend to shear off the upper portion of the head of the bushing or plug 9; if a blow were given the inside of the head near the top, as shown in said figure, it would tend to shear off the same portion of the plug. The bushing, therefore, serves auseful purpose in conferring strength upon the. spool at the point where the fracture in use is most likely to occur in theabsence of the bushin It is preferred to use a cement which w' the purpose of uniting e wooden and fibre parts together, but which also has the quality qlllialities not only fort of forming a strong adhesive union with metal so that by its use all of the strongly and 'adhesively united.

In the modification shown in Fig. 5, the

ferrule 12 is provided on its outer end with parts are an outwardly extended flange having a por-.

tion at its extreme edge bent back and rovided with a ragged edge which forms toothlike projections to engage and enter the mai'oo I terial of the head. The-ferrule in this modi fication has tooth-like projections at both ends. which lock the head and barrel firmly I to each other to prevent rotation of the one on the other.

the method of making spools above dem5 The present invention also contemplates 5 united by means of a plug or bushing and a reinforcing ferrule, according to which the ferrule is expanded in the assembling process. It is apparent that if the ferrule had a cylindrical body portion which Was forced into the inside of the barrel, it would plow its Way through the wood if larger than the hole in the barrel, and therefore be more or less free to pull out upon slight provocation, or, if the reinforcing ferrule were only the exact size of the hole in the ferrule, it would only be united to it by the cement. In accordance with the present method, not only be possible.

Having thus described the invention, What is claimed is:

1. A spool having a barrel with a cylindrical hole in its end, a head provided with a frusto-coni'cal hole, a reinforcing ferrule having its outer endfrusto-conical to fit the hole in the head and its inner end preliminarily frusto-conical and provided with out- 'wardly extended projections, and a plug having its outer end frusto-conical to fit the inside of the ferrule and its inner end cylindricalto expand the inner end of the ferrule to fit the hole in the barrel and to force the projections on the inner end of the forrule into the Wall of the barrel hole, the barrel, head and plug being glued together.

2. The method of making the spool de scribed in claim 1, which consists in making the inner end of the barrel of the ferrule frusto conical and expanding it to-cylindrical form by forcing the bushing or plug into the ferrule while in position in the barrel,

in the act of assembling the parts, thereby causing the tooth-like projections on the inner end of the ferrule to penetrate the inner surface of the barrel.

In testimony whereof I have signed 'my name to this specification.

STEPHEN R. GLEASON.

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