John J. Brogley, a blacksmith employed by Jones & Laughlin Steel Corporation, was injured in an industrial accident on December 12, 1973, when a die flew off the ram of a steam hammer. The steam hammer had been manufactured by Chambersburg Engineering Company and sold to Jones & Laughlin in May, 1930, more than forth-three years before the accident. An action in trespass was commenced *319 against Chambersburg Engineering on the grounds that the tapered key assembly by which the die was attached to the ram had been defectively designed. Chambersburg Engineering caused Jones & Laughlin to be joined as an additional defendant 1 on the grounds that the steam hammer had been negligently maintained and the original design altered. The case was tried before a jury which returned a verdict in favor of Brogley for $25,000 against Jones & Laughlin alone. Because Brogley could not recover damages against his employer, the trial court molded the verdict in favor of defendant. Post-verdict motions were denied, judgment was entered on the verdict, and Brogley appealed. 2 We affirm.
Brogley had the burden of establishing at trial that the steam hammer was defective, that the defect was the cause of his injuries, and that the defect had existed at the time the product entered the market. See:
Berkebile v. Brantly Helicopter Corporation,
Although the courts of this state have not had occasion to rule on the admissibility of OSHA regulations as evidence of negligence, they have uniformly held admissible other safety codes and regulations intended to enhance safety. See:
Groh
v.
Philadelphia Electric Company,
Appellant also contends that it was error to permit Eugene Clarke, Jr., Chambersburg’s expert witness and employee, to testify that an improperly fitted key had been substituted by Jones & Laughlin and was the direct cause of the accident. This, he contends, was an opinion not contained in a pre-trial report submitted to appellants during a pre-trial conference held pursuant to Pa.R.C.P. 212. The admission of expert testimony is a matter within the sound discretion of the trial court, whose rulings thereon will not be reversed absent a manifest abuse of discretion.
Laubach v. Haigh,
The report prepared by Clarke and furnished to appellant reviewed technical data regarding the interference joint between the ram and die as originally designed and manufactured by Chambersburg and as the joint appeared on August 25, 1976 and July 26, 1978 when Clarke examined the steam hammer. He summarized his findings and conclusions as follows: “It is concluded that the ram-to-die joint originally employed by Chambersburg was a proper and safe arrangement; that the addition of a bolt and nut to the key does not enhance the safety of this arrangement; and that at the time of the accident an improper key and shims were being employed to secure the die to the ram which became the proximate cause of the accident.” The trial court concluded, and we agree, that Clarke’s trial testimony ws consistent with the conclusions contained in his report. There was no error in permitting the witness to testify that the improperly fitted key substituted by Jones & Laughlin for the one originally inserted by the manufacturer had been the direct cause of the accident. The decision in Gill v. McGraw Electric Company, supra, upon which appellant *322 relies, is not apposite. In that case the party seeking to call the expert witness at trial had not provided opposing counsel with either the name of the witness or a copy of his report despite a pre-trial order directing such disclosure.
Appellant’s averment that the trial court’s jury instructions contained error is equally without merit. When reviewing an allegation of error in the court’s charge, we must “look to the charge in its entirety, against the background of the evidence in each case, in order to determine whether an error was committed and whether any prejudice resulted.”
Jacob Kline Cooperage, Inc. v. George W. Kistler, Inc.,
The trial court charged generally that it was for the jury to determine whether the design had been defective. It also charged that the jury could consider evidence of wide use of the same design by other manufacturers at the time of manufacture of the steam hammer as evidence that the design had not been defective. This was a correct instruction. It was not error to fail to charge, as appellant requested, that general use of a certain design in an industry does not excuse a manufacturer from liability.
Also, it was not error to refuse an instruction that the jury should not calculate damages if they found Jones & Laughlin alone liable. Prior to the 1974 amendment to the Workmen’s Compensation Act, “[A]ny non-employer defendant who [was] the joining party [might] allege the sole liability of the additional defendant employer, and ha[d] the
concomitant right to an instruction to that effect,
if the evidence he. produce[d] justifie[d] such instruction. This [was] equally as true in the situation . . . where the addi
*323
tional defendant ha[d] the defense of workmen’s compensation but [could]
not raise it at trial
against the original plaintiff.”
Burke v. Duquesne Light Company, supra
231 Pa.Super, at 419-420,
The trial was fairly and correctly conducted, and the judgment, therefore, is affirmed.
Notes
. The joinder of an employer is barred by Section 303(b) of the Workmen’s Compensation Act of December 5, 1974, P.L. 782, No. 263, 77 P.S. § 481(b), only where the accident occurred after February 5, 1975, the effective date of the Act.
. Jones & Laughlin appealed also, but solely to protect its rights in the event Brogley were to be awarded a new trial.
