Lindbladh Corp. v. C. E. Sheppard Co.

7 F. Supp. 446, 1933 U.S. Dist. LEXIS 1008
CourtDistrict Court, E.D. New York
DecidedJuly 24, 1933
DocketNo. 5950
StatusPublished
Cited by1 cases

This text of 7 F. Supp. 446 (Lindbladh Corp. v. C. E. Sheppard Co.) is published on Counsel Stack Legal Research, covering District Court, E.D. New York primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Lindbladh Corp. v. C. E. Sheppard Co., 7 F. Supp. 446, 1933 U.S. Dist. LEXIS 1008 (E.D.N.Y. 1933).

Opinion

GALSTON, District Judge.

This is a patent infringement suit in which infringement is alleged of letters patent No. 1,813,940 for a ruling machine granted July 14,1931, on an application filed on September 17, 1921, and of patent No. 1,609,648 for a ruling apparatus granted December 7, 1926, on an application filed August 3, 1923. The inventor of these devices is Harmon E. Lind-bladh, plaintiff’s assignor.

The inventions covered by these patents relate to improvements in duplex ruling machines, in which sheets, after having parallel [447]*447lines drawn, parallel to one another and to the edges of the sheets, are delivered to a second apparatus to produce intersecting-lines upon the sheets.

- The novelty of letters patent No. 1,813,940 is said to consist in the device which enables lines ruled by the second-acting apparatus to begin or terminate in definite controlled relation to the lines of the first-acting apparatus.

The specification is very detailed. Two ruling machines are arranged in the form of an L, having their frames extending substantially at right angles to each other and joined by an intermediate mechanism referred to as the transferring mechanism. This mechanism is so organized as to receive the sheets ruled by the first-acting apparatus and to deliver them to the second-acting apparatus, so that they are thereby provided on the same side with lines intersecting those produced by the first apparatus. Feed rolls journaled upon the frame of the first apparatus form a part of the sheet-advancing system by which the sheets are carried to pens or other ruling devices, movably mounted and governed through levers from actuating cams. .The time of delivery of the sheets to the ruling devices is controlled by an oscillatory gate member and a cam. Cams governing the pens and gates are carried upon a shaft journaled transversely of the frame and are driven through change-speed gearing from one of the rolls rotated by a motor mounted upon the frame. An endless conveyor or cloth operates at its forward extremity upon a roll rotatable in bearings at opposite sides of the lower portion of the frame. This conveyor delivers sheets to a second endless conveyor.

As the sheets travel forward, they are received by the transferring devices. The devices of the transferring mechanism are driven at a constant speed through equal ratio gearing from the cam shaft of the first machine. The specification says:

“As a result of this connection, the pen and gate-controlling cams of apparatus A and the transferring devices 50 operate in never-ehanging synchronism.”

The second machine is provided with the same sort of apparatus as the first. There is a cam shaft which carries the cams that govern the operation of the gate and which also govern the operation of the pens which are set down on the sheet in the second machine. The specification describing the second apparatus sets forth:

“This apparatus, like that already briefly described, has mounted upon its frame 146 feed-rolls 148, over the lower of which operates a cloth 150, which is a portion of the conveying system. Its movable ruling devices or pens 152 and its gate 154 (Fig. 1) are controlled by cams 156 and 158, respectively, upon a shaft 160 arranged in a similar position to that in apparatus A. Levers 159 actuate the pens in accordance with the contour of the cams 156. A definite time relation is maintained between this cam-shaft and the shaft 54 of the transferring mechanism by constant-speed gearing 162, which may be of the sprocket type, directly connecting said shafts. The consequence of this is that the transferring devices 50 and the cam-shaft 160 operate synchronously, so there is also syn-chronism existing between the cam-shafts of the two ruling apparatus, since, as already pointed out, the transferring shaft 54 is rotated in definite and unvarying time-relation with the cam-shaft 24. * * * To allow the rate of advance of the conveying system of apparatus- B to be altered to provide for the operation of the ruling devices upon sheets of different dimensions, there is interposed between this shaft 172 and the shaft of the lower roll 148 change-speed gearing 174.”

This patent has been referred to throughout the trial as the synchronizing drive patent; and it is contended that for the first time in the art a system of driving connections between the two 'halves of an L ruling machine makes double striking practicable, that is, striking in two directions, horizontal and vertical, on the same side of a sheet of paper at one operation and with one feeding of the sheets.

'As known in the art, the term “striking” refers to ruling lines so that the lines begin and end at predetermined points on the sheet. “Feint-lining” means the ruling of lines which extend continuously from one end of the sheet to the other.

Claims 6, 8, 10’ 32, 40, 44, 47, and 81 of this patent are in issue.

The alleged infringing device is one used by this defendant, having been purchased from, and manufactured by, W. O. Hickok Manufacturing Company. It may be noted that the manufacturer has controlled the defense of this suit.

Invalidity of the patent arising from want of invention and alleged inoperativeness and lack of novelty is the defense urged. It is also contended that the claims of the patent are obscure and vague and that they do not comply with the patent statutes.

A very clear and concise statement of the [448]*448structure and operation of these ruling1 machines led the defendant’s expert, Boyle, to say that five major instrumentalities are involved in machines of this kind:

“There is the speed of the first cloth roller, the speed of the second cloth roller, the rotation of the first cam-shaft, the rotation of the second cam-shaft, and the operation in proper timed relationship of the transfer dog. And so the question is, how will these different instrumentalities be hooked up so that they will operate with precision, because these ruling machines are precision instruments. The pen-beam must strike on a certain definite line, and if it either over-strikes or understrikes one might say a hair’s breadth, it affects the accuracy of the machine, and hence the appearance of the fined product.”

These five instrumentalities are disclosed in the Lindbladh patent. The two cam shafts operate in synchronism as do the gates and pen beams which they control, as well as the transfer shaft. Each shaft revolves once for each revolution of each of the other shafts. The two cloth rolls rotate in predetermined relationship with each other and with the cam shafts. Provision is made for varying the speeds of the two cloth rolls with suitable changes in the change-speed gears. All of this is sufficiently set forth in the quotations heretofore made from the specification, patent in suit, page 2, lines 67-70, page 2, lines 77-85, page 4, lines 82-104, page 4, lines 113-119', and, in addition, page 6, fine 49, and page 7, line 5.

In considering the attack made upon the patent, it will be helpful first to discuss the prior uses.

The Knapp Machine of the George D. Barnard Company.

The construction of this machine was described by the witness Kli’ppel, a paper ruler by trade, employed over fifty years by the George D. Barnard Company:

“First, it was constructed with two shafts on the off side of the ruler, with two long drives to the end of the maphine.

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Related

Lindbladh Corp. v. C. E. Shepard Co.
72 F.2d 1015 (Second Circuit, 1934)

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7 F. Supp. 446, 1933 U.S. Dist. LEXIS 1008, Counsel Stack Legal Research, https://law.counselstack.com/opinion/lindbladh-corp-v-c-e-sheppard-co-nyed-1933.