Wirtalla v. Hall

235 F. 306, 1916 U.S. Dist. LEXIS 1369
CourtDistrict Court, D. New Jersey
DecidedSeptember 6, 1916
DocketNo. 385
StatusPublished

This text of 235 F. 306 (Wirtalla v. Hall) is published on Counsel Stack Legal Research, covering District Court, D. New Jersey primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Wirtalla v. Hall, 235 F. 306, 1916 U.S. Dist. LEXIS 1369 (D.N.J. 1916).

Opinion

ORR, District Judge.

This is an ordinary patent suit, wherein the testimony was taken otherwise than in open court. The plaintiff Wirtalla, who is a citizen of New Jersey, is the patentee and owner of letters patent of the United States, No. 729,477, issued to him May 26, 1903, for a loom heddle-frame. The plaintiff corporation, which is a citizen of the state of Pennsylvania, is a sole and exclusive licensee under said patent to manufacture and sell the subject thereof. The defendant is a citizen of New Jersey, engaged in manufacturing and dealing in general silk mill supplies.

The bill charges the defendant with infringing the rights of the [307]*307plaintiffs by the manufacture and sale of heddle-frames which embody the important features of the heddle-frame described in the patent in suit. The answer avers that the patent is invalid for want of invention in view of the prior art, and further that, even if it were a valid patent, the heddle-frames manufactured and dealt in by the defendant, do not infringe any of plaintiff’s rights.

A loom heddle-frame is a necessary part of machinery for use in weaving. So far as appears in this case, it is a light, rectangular frame having within it, and near the top and bottom, horizontally disposed bars, called heddle-bars, which support or carry vertically disposed heddles, each of which is intended to receive a warped thread through its eye, which is midway between its ends. The heddles are, in ordinary practice, of metal, and have longitudinal slots in their ends, by means of which they are strung upon the top and bottom heddle-bars. The heddle-bars are ordinary fiat strips arranged edgewise, and have such dimensional relation to the slots of the heddles that the heddles are loose enough on the heddle-bars to permit them to slide or shift thereon. It is perhaps apparent, but at all events is made clear by the testimony, that the top and bottom heddle-bars, because of their length and otherwise small dimensions, should be supported between their ends to the heddle-frame, lest they be distorted by reason of the many heddles strung thereon, and by reason of the use of many heddle-frames in the same operation.

Before considering the means of supporting or staying the heddlebars, it is proper to consider the use to which the heddle-frame is put. As has been noted, the heddles carry through their eyes the warped threads. There must be more than one heddle-frame in use for weaving. Heddle-frames with the warped threads through the heddles are so disposed that by suitable mechanism some of the heddle-frames are caused to move upward and others downward, thus forming the “shed” for the shuttle to* pass through. There may he thousands of warped threads used in weaving. To prevent distortion of the heddle-bars, stay-hooks have been used for many years to hold the heddle-bars in more or less firm position in relation to the top and bottom parts of the heddle-frame.

[1] The patentee, in his specification, states his object to be as follows :

“My invention relates to improvements in loom heddle-frames of that class wherein a series of heddles are strung on heddle-bars, the latter being stayed in place by hooks attached to the end portions of the frame. Heretofore considerable difliculty has been experienced by operators in adjusting the heddles within the frame and in applying or removing the heddles. This is due, primarily, to the attachment of the stay-hooks to the frame in a substantially permanent way, and this makes it necessary for the operator to forcibly lift the heddle-bars over the hooks, which practice is objectionable for two reasons: First, the heddles are strained or stretched lengthwise to such an extent that they are frequently broken or made useless; and, secondly, the application of force by the hands hurts them to such an extent that operators object to changing the heddles.
“Tile object that I have in view is to provide means by which the adjustment, removal, and insertion of the heddles can be easily, quickly, and readily performed without hurting the hands of the operator, because it is not necessary to forcibly lift the heddle-bars and strain the heddles strung thereon. I [308]*308Attain these objects by the employment of a stay-hook, which is removably attached to the heddle-frame and is easily slipped from engagement with the heddle-bars.”

It is perhaps not necessary to refer at greater length to the specifications. What the patentee appears to have done has been to insert two rods through the vertical sides of the frame, and within the frame and parallel and near to the upper and lower parts of the frame respectively. These rods are bolted at their ends upon the outside of the frame, and may be removed and replaced as desired. The rods pass through the eyes of stay-hooks, which hooks tend to hold in place the heddle-bars. As many stay-hooks may be used upon the rod as is deemed proper. The rod itself is intended to be held in fixed relation to the portion of the frame with which it is parallel and more closely placed. It is braced by the employment of eyes on the frame, through which eyes it extends, as well as through the eyes of the stay-hooks., The patent, however, is not limited to the use of rods extending clear through the frame, but, as appears in Fig. 3, contemplates rods of shorter length held by eyes on the frame to which the stay-hooks are attached. The claims of the patent in suit are as follows :

“1. A loom heddle-frame having heddle-supporting bars, a rod or bolt fastened removably to said frame, and a stay-hook fitted to said rod or bolt and the heddle-supporting bar, whereby the rod or bolt may be withdrawn from the frame and the hook may be slipped from engagement with the heddlesupporting bar. i
“2. A loom heddle-frame.having heddle-supporting bars, a series of stay-hooks engaging with said bars, and a rod or bolt secured removably to the frame, said stay-hooks being threaded on the rod or bolt and adapted on the withdrawal of said rod to be easily disengaged from the heddle-supporting bar.
“3. A loom heddle-frame having heddle-supporting bars, a removable rod or bolt attached to said frame, and a stay-liook loosely and slidably fitted on said rod or bolt and engaging removably with the heddle-supporting bar.
“4. A loom heddle-frame having a heddle-supporting bar, a rod or bolt secured removably to the frame, an eye fastened to the frame and engaging said rod or bolt, and stay-hooks threaded on the rod or bolt and engaging the heddle-supporting bar.”

In view of the evidence offered by the defendant as to the state of the prior art, this court has been unable to find invention in the apparatus of the patent in suit. The plaintiff Wirtalla was, at the date of his application for the patent in suit and for some years after, superintendent of the Astoria Silk Works on Long Island. His term of service there lasted some 17 years. In his testimony he states what led him to adopt the form of heddle-frame disclosed in the patent as follows:

“Q. 6. What led to the making of the invention covered by your patent No. 729,477? A. When the flat steel heddle first was put on the market, the frames used for them were of the old style, and caused much trouble to the operator in handling them.
“Q. 7. What was this trouble? A.

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Bluebook (online)
235 F. 306, 1916 U.S. Dist. LEXIS 1369, Counsel Stack Legal Research, https://law.counselstack.com/opinion/wirtalla-v-hall-njd-1916.