Document 06oQdapXV3Q8zNJ46kbKpwJKn

J O H KF S - Lj, A K V! LLE ' SALES CORPORATION AND FRICTION iviATHXIALS . DIVISION PHILADELPHIA 6, PA. PHONE; WALNUT 2-5000 AREA CODE 215 1 ; ..yx'sj Tfte Moll fiufWir.g tvuvsn^. September 10 th 1963 General Electric Company Salem, Virginia ATT ,; tlr, P. J, Esperci, Buyer Gentlemen: R3. : JGlli-LAkVlLLS 02D3D BRAKE BLOCK ASSEI-SLIES TO YOUR BUG. 151 L-7932, RSV. 3 AND ALT. KOIMC3 DATED 11/21/62 Since writi-..;: you. under date of September 3xd 1963, sre are advised by ov,' nuukegan Rectory that they are experiencing considerable difficulty in attempting to produce assemblies to your bvi.wing 7532 Laving shear test forces in accordance with the figures tabulated in my letter of September 3rd. Waukegan advises us that the 24 pcs. of part #2 to Drawing 7932 on your order 06&-XJX.-5226S5, onr order BP-50063, that they calculated shear load forces based on the ratio of the Brake Block surface area. These are the forces as tabulated in our letter of September 3rd 1963. However,when Waukegan attempted to shear test these 7932-2 Blocks;, they experienced high rejects due to .crushing the edge of the block but in no case did they experience a bond line failure. A r6-e;;si.iaatioB "of their data disclosed that although the surface urea of 7932-2 was approximately 507. greater than the surface ^rea of part 2 er your Drawing 7931, the cross section, area at the edge of the Block which bears, the entire force was about ICY. less. Bused on a test force of 6,500 lbs, for 7511-2 this works out to be approximately 2,240 lbs, per square inch on the edge. Efsing 9,000 lbs. for 7932-2, the force on the -dgo is 3,500 lbs. per square inch. This is more force then our Style #1202 Friction material can reasonably be expected to withstand and as would be expected, the edge of the Block crushed uv-e mushroomed. o PLAINTIFFS EXHIBIT Ivy- 62/5/9 GEWVOCT04-011748 WV-21519 Part numbers 79.3.2-1* 4* 5 ar,i o arc reasonably close in area to their corresponding counterpart numbers on Drawing; 7931% Part ruiabets 7932-2 and 3 are ^oaewfcafc larger in area. '.Subjec to your approvals we propose to use the carte test force? for the 7932 series &s arc currently being used for 7931. These test forces are as follows and they supersede and cancel those given in ray letter of September 3rd. 7932 - 1 -2 -3 -4 4*000 6*003 13*o00 15*000 18*000 25*000 lbs. lbs. Its. lbs. lbs. lbs.,. Will you kindly advise me promptly if the foregoing does not meet with your approval. J Very truly yours 0 BS3GE, District Sales Hanager Packings and Textile Department J GEWVOCT04-011749