Eickemeyer Hat-Blocking Mach. Co. v. Pearce

8 F. Cas. 376, 10 Blatchf. 403, 6 Fish. Pat. Cas. 219, 1873 U.S. App. LEXIS 1722
CourtU.S. Circuit Court for the District of Southern New York
DecidedJanuary 31, 1873
DocketCase No. 4,312
StatusPublished
Cited by3 cases

This text of 8 F. Cas. 376 (Eickemeyer Hat-Blocking Mach. Co. v. Pearce) is published on Counsel Stack Legal Research, covering U.S. Circuit Court for the District of Southern New York primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Eickemeyer Hat-Blocking Mach. Co. v. Pearce, 8 F. Cas. 376, 10 Blatchf. 403, 6 Fish. Pat. Cas. 219, 1873 U.S. App. LEXIS 1722 (circtsdny 1873).

Opinion

BLATCHFORD, District Judge.

This suit is brought on reissued letters patent granted to the plaintiffs, as assignees of Rudolph Eickemeyer, December 1st, 1868, for an “improvement in machines for stretching hat-bodies,” the original letters patent having been granted to said Eickemeyer, February 28th. 1865. The specification, which is signed by Eickemeyer, says: “In the manufacture of felt hats, the bodies, having been formed of a conical shape, and subjected to the process of felting, termed by hatters “sizing,” retain their conical form, and require to be stretched in the tip and crown, and also at the brim, to enable the hats to receive and maintain the form subsequently given to them by the operation of blocking. The hat-body being of a conical form, rounded at the tip, is nevertheless made with reference to the hat to be produced, and the different parts of it which are afterwards to be developed into the “tip,” “square,” “side-crown,” “band,” and “brim,” of the finished hat, are distinguished by imaginary lines or zones around the hat-body,- and the same names applied to them, the lower part of the sides being termed the “brim,” the upper part of the sides the “side-crown,” the line of division between the side-crown and brim the “band,” the rounded upper part the “tip,” and the dividing line between the tip and side-crown the “square.” In stretching hat-bodies for blocking, the band is not generally stretched circumfer-entially, or but slightly stretched, the stretching being required in the crown and tip, to produce the square or angular corner of the cylindrical or bell-crowned hat, and at the brim, in order that the latter may lie flat, or at right angles, or nearly so. to the side-crown, when blocked; and it is necessary that the body shall be stretched more, in those parts which require stretching, than would be sufficient to conform it to the shape of the hat-block, because, if not overstretched before blocking, the hat will shrink, when, in wear, it is exposed to-moisture, and tend to resume its conical shape, but, if over stretched, and suffered to shrink to the block, will retain its figure afterwards, under ordinary wear and exposure. In stretching a hat-body for square-crowned hats, the upper part of the hat-body is circumferentially stretched, most at the square, or angle of intersection between the side-crown and tip, beginning to stretch gradually from the centre of the tip and from the band, and increasing towards the square. The lower part of the body is stretched circumferentially, most at the edge of the brim, beginning to stretch gradually from the band. This stretching operation has hitherto been commonly performed by hand, notwithstanding the attempts that have been made to use expanding blocks, or expanding devices, inside of the bodies, for stretching the tips or crowns. Hat-bodies are generally made of unequal thickness from tip to brim, but of equal thickness, as near as may be, in the direction of the circumference, and the operation of stretching, sometimes called “wet-blocking,” by hand, requires great skill and care to stretch the parts requiring to be stretched, and preserve the requisite circumferential equality of thickness of the body, without over-straining or tearing the hat. The object of my invention is to perform this operation of stretching hat-bodies by machinery, and to [379]*379this end I have invented the new and improved machine hereinafter described, whereby both tip and brim, or either, may be properly stretched by the operation of the machine. My said invention of a new and improved machine for stretching hat-bodies consists generally of a radially ribbed or skeleton former, whereon the hat-body is placed to be stretched, and the ribs of which act as internal supporting and stretching surfaces, and a series of external stretching devices, which act upon the outside portions of the hat-body that are to be. stretched, in opposition to the internal action of the ribs of the skeleton former, and between the lines of support of the same, the internal and external supporting and stretching devices being so combined and arranged, with relation to each other, and to the work to be done, that, when they are brought together with force, they operate to stretch the hat-body embraced. between them, in the required places to develop the desired shape of the hat; and, for the purpose of holding the hat-body in place upon the former, so that the proper portions will be stretched, a clamping ring is also combined with the machine. I have also made the exterior pressing or stretching devices radially adjustable in position relatively to the axis of the ribbed skeleton former, to accommodate the variations of form required, and, in order to vary the degree of stretching of either the tip or brim at pleasure, I have made the external pressing or stretching devices independent of each other, and independently adjustable. It will be observed, upon inspection of the machine as illustrated in the drawings, that, although the general principle and mode of operation of the parts of the machine which act to stretch the tip are the same as in those parts that act to stretch the brim, the adaptation and arrangement of the parts for the two operations are different. The ribs which support the tip have curved, or otherwise inclined, surfaces, to conform to the rounded tip of the hat-body, and the ribs themselves are arranged so that the recesses between them extend inwards to the axis, or nearly so, in order to give room for the portions of the tip and side-crown that are pressed in by the external stretching devices, and the external stretching devices converge closely together, to act upon the upper surface of the tip to be stretched. The ribs which support the brim have straight surfaces radiating from a circle or cylinder of the diameter of the band, and the recesses do not necessarily extend inside of that circle or cylinder, which may be the hub or support of the ribs of the former. The ribs are more in number than the ribs which support the tip, because of the greater surface of the brim to be stretched by them, and the external stretching or pressing devices are not converged together so closely as those which act upon the tip; and it will also be observed, that the construction and arrangement, respectively, of the parts for stretching the tip and brim of the hat-body, differ so much, that neither will perform the office of the other, although both will perform them offices at the same time upon the same hat-body. For the purpose of seeming circumferential equality of action of the stretching devices upon the portions of the hat-body to be stretched, and for convenience and accuracy of adjustment, and facility of operating the stretching devices in a practical machine, I have mounted the internal stretching devices which constitute the skeleton or ribbed former, concentrically, upon the upper end of a vertical sliding spindle, which is moved up and down in guides, in a frame, by a lever, and have attached the exterior stretching devices to the frame, in positions concentric with the axis of the ribbed former, so that the latter may be lowered, to put on and take off the hat-body, and lifted, when the hat-body is put on, to bring the parts together, so as to-stretch all the parts operated upon equably in the direction of the circumference of the hat-body.

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Cite This Page — Counsel Stack

Bluebook (online)
8 F. Cas. 376, 10 Blatchf. 403, 6 Fish. Pat. Cas. 219, 1873 U.S. App. LEXIS 1722, Counsel Stack Legal Research, https://law.counselstack.com/opinion/eickemeyer-hat-blocking-mach-co-v-pearce-circtsdny-1873.