[D8123R], Letter from Francis Robbins Upton to Thomas Alva Edison, March 7th, 1881

Item

Abstract

Long, detailed letter on lamp mfg. Now testing lamps with copper plated ends in silver clamps. Plated clamps take 2-3Xs longer to get off than silver clamps; seem to contain large amounts of gas. Now getting the best vacuums we've had. Can get good quick vac without heating lamp before putting on pump. "Clean mercury acts promptly and upsets all rules of working with mercury that was not good." Leveled feed line from pump to boiler. Campbell got coal shed built faster than expected. Having pattern made for a cover to take under it 100 forms at once; Campbell says he can handle that many. By slightly changing furnace can get 600 A carbons, 1200 B carbons at a heat, twice that per day. Lawson showing ingenuity & more industry than ever; waiting for corks with medium holes. Discusses parts [for pumps?] Can't judge offer from Brooklyn without seeing the place; "I am thoroughly convinced by my experience here that we must move. We never can make the lamp cheap until we can have plenty of boys and girls at low wages. These can neve be had except where there are other manufacturing establishments employing men;" maybe Newark outskirts. Sooner we decide the better. Will need open room to expand; know it'll have to be large but dare not write up figures.

Date

1881-03-07

Decade

1880-1889

Type

Identifier

D8123R

Folder Set

D8123

Title

[D8123R], Letter from Francis Robbins Upton to Thomas Alva Edison, March 7th, 1881

Microfilm ID

57:789

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University

Timestamp

March 7, 1881