Holloway v. Dow

54 F. 511, 1893 U.S. App. LEXIS 2483
CourtU.S. Circuit Court for the District of Indiana
DecidedMarch 13, 1893
DocketNo. 8,497
StatusPublished
Cited by4 cases

This text of 54 F. 511 (Holloway v. Dow) is published on Counsel Stack Legal Research, covering U.S. Circuit Court for the District of Indiana primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Holloway v. Dow, 54 F. 511, 1893 U.S. App. LEXIS 2483 (circtdin 1893).

Opinion

BAKER, District Judge.

The bill in this case is filed by the complainant to obtain relief for an alleged infringement of letters patent Ho. 279,537, granted to James F. Carter and Thomas Seeley, June 19, 1883, to-which the complainant deraigns title by deed of assignment bearing date May 1, 1889. The invention relates to an offsetting log carriage in sawmills. The defenses are want of novelty, incomplete, combination, and noninfringement. The nature and object of the invention are set forth in the specifications as follows:

“Our invention relates to an improvement in the log carriage of a sawmill, and its object is to prevent the cut surface of the log from coming in contact with the side of the saw during the backward movement of the carriage. This object we attain by causing the carriage, with the log upon it, to have a slight transverse movement, as hereinafter fully explained. * * * A rectangular frame, a, adapted to receive and carry on its upper surface any ordinary style of head blocks, has on its under surface suitable bearings, which rest on the axles, b, b, of the trucks, c, c. The flanges of the truck fit nicely between the rails of the carriage way in the usual manner. The space between the trucks forming each pair is longer than the width of the carriage frame, a, and said frame is free to slide in the direction of its width upon the axles connecting said trucks. A beam, d, extends lengthwise beneath frame, a, having slots, e, through which the axles, b, pass, and notches, f, f, on the upper surface, through which the cross timbers of frame, a, pass. To the beam, d, the feed mechanism is connected for moving the carriage in the direction of its length towards and from the saw. Any suitable mechanism may be used for this purpose. We have here shown the ordinary rack and pinion, h, i. Beam, d, is not rigidly secured to the carriage frame, as is the case with the usual rack beam, but it rests on the axles, b, between the collars, j, j, a pair of which are rigidly secured to each of the said axles, the faces of the cohars resting against suitable friction plates on the sides of beam, d, the effect being to prevent all lateral motion of the beam on the axle, Frame, a, is connected at intervals with beam, d, by links, 1, 1, of which there may be two or more, each of which is pivoted at one end to the frame and at the other end to the beam.”

The specifications then proceed to describe, by reference to the accompanying drawings, the operation of their invention. The. claims, so far as material to this controversy, are the following:

“(1) In a sawmill, a log carriage, consisting of a series of trucks; a frame mounted on said trucks, and adapted to move transversely thereon, and to support a log; a draft beam, adapted to move longitudinally in relation to said frame at each forward and backward movement thereof; and means for connecting said draft beam with the trucks and with the frame, whereby the frame is moved transversely by the longitudinal movement of the draft beam, substantially as shown and described. (2) The combination, with a [513]*513log carriage in a sawmill, of a draft beam mounted therewith, and adapted to llave a limited longitudinal movement in relation thereto at each forward anti backward movement thereof, substantially as and for the purpose specified. (3) In a sawmill, the combination, with a saw, a fixed track by the side thereof, and a series of trucks, or their equivalent, adapted to move along said track, and occupying a fixed position transversely thereon, of a frame adapted to support a log mounted on said trucks, or their equivalent, and adapted to have a transverse movement thereon, substantially as and for the purpose set forth.”

These claims cover two distinct features of the log carriage described. The third covers a frame adapted to support a log mounted on a series of trucks, or their equivalent, having axles slightly longer than the width of the frame, adapted to move along a track by the side of the saw, and occupying a fixed position transversely on the track, the frame being adapted to have a transverse movement on the trucks without the movement of the carriage. The second covers the mechanism to effect the transverse movement of the frame of the carriage, and the first embraces these two features in combination.

The defendants admit the validity of the first and second claims, but insist that they do not infringe them, because the transverse movement of the frame on their log carriage is not effected by applying the feed which moves the carriage directly to ah independent longitudinal, reciprocating, offsetting beam, which these claims call for. In the complainant’s device the longitudinal movement of the draft beam is converted into transverse power for the offsetting and insetting the frame by means of two or more links pivoted at one end to the frame and at the other end to the draft beam, which is adapted to move longitudinally in relation to the frame at each forward and backward movement thereof, whereby the frame is moved transversely by the longitudinal movement of the draft beam. In the defendants’ mechanism the transverse movement of the frame is effected by a swinging arm, mounted loosely on the axles between two friction clutch collars fastened on the latter, so that ordinarily this friction clutch will turn the arm with the axle. At the upper end of this arm there is a pair of cam plates of spiral form, and a fixed pin depending from the frame passes in between these two cams. The turning of the cam arm by the revolution of the axle through the friction clutches moves the cams along the fixed pins on the frame, and this movement slides the frame transversely on the axles until the turning of the cam arm is stopped. Stops are fixed on the carriage frame on each side of the axles, and the upper end of the cam arm strikes one or the other of these stops, and thereby its farther rotation with the axle is arrested, while the rotation of the axle continues, the friction clutches between the arm and the axle permitting this movement. The range-of this swinging movement of the cam arm is about a quarter turn, so that the arm is free to move witli the axle in both directions about a quarter of a circle. In the defendants’ carriage the lateral movement of the frame is effected by the revolution of the axles and truck wheels while moving along the track. There is no possible way of shifting the frame unless the axles and truck wheels revolve. The defendanis’ offsetting device can operate only with the movement of the carriage along the tracks, [514]*514due to the revolution of the wheels in one direction or the other. It has no feed or draft bar, and the draft or feed mechanism is connected directly to the carriage frame, and not to that which shifts the frame transversely. It seems to me that the offsetting mechanism in the two carriages does not operate upon the same principle, and is substantially dissimilar. While each accomplishes substantially the same result, the mechanism to effect it is so unlike that the one cannot be said to be the equivalent of the other. The defendants’ device does not produce the same result as the plaintiff’s by the same principle or mode of operation. The defendants do not deny their use of the mechanism described in the third claim of complainant’s patent. They seek, however, to escape liability upon several grounds going to the validity and construction of the claim.

They earnestly contend that the third claim is void in view of the prior state of the art, and that it was anticipated by the prior patents of Fox and Stearns.

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Cite This Page — Counsel Stack

Bluebook (online)
54 F. 511, 1893 U.S. App. LEXIS 2483, Counsel Stack Legal Research, https://law.counselstack.com/opinion/holloway-v-dow-circtdin-1893.