[LM111252] Test Report, December 1888
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Title
[LM111252] Test Report, December 1888
Editor's Notes
####[page 140]####Section -####On the means that can be adopted to make the present form of meter more accurate.####As already stated the principal existing cause of error is the high transition resistance thta is set up in bottle by the hydration of the zincs during the inactive periods.####Various methods of treatment tried with the ---- of preventing the hydration by --pelling the atmosphere ----- dissolved in the solution and occluded in the amalgam. Among these were####Heating the bottle and its contained plates solution to boiling points####Heating the solution to boiling point, and heating the plates in --- to various temperatures after amalgamation. &c. &c.####If these methods only ones has met with continued practical success. It is to boil the solution and to heat the zincs -- boiling ---- ------ before amalgamating show. It has been found preferable to heat the amalgamating mercury as well by ---- under water to ---- fumes--but it may be found in practical experience that it is unnecessary to do more than heat the plates themselves. The boiling of the solution is of principal importance.####Solution made from freshly distilled water or distilled water kept for some time in closed vessels out of contact with -- need not be it seems be boiled; when made from distilled water that has been once used so that has had free access to air just raising to the boiling point has been sufficient, but solutions prepared from -- water or water known to be####[page 141]####--- -- dissolved oxygen -- --- boiled for --- half an hour before it is ------ to ---- laboratory experiments, whether -- --- that has ---- boiled and --- in for one bottle in an ordinary ---- meter bottle ---- is be boiled before using again possibly it will not be necessary to boil it till the second or third time has ----- but this can clearly be decided by [practice?] In any case [filtering?] has to be adopted --- each --- --- - ----[boiling?] --- give very little --------####It can be readily ----- ---- solution supplied by Mr Edison from ---- laboratory for the use of meter station can be poured into bottles at once without boiling - --- first session.####To boil the solution, it will be found [convenient?] to heat three or four gallons at ----- . The density will be somewhat increased by the process and by a high temph----n a it may be necessary to add a little ---- or boiled wrote to the solution as it [ends?]####A results appended show that on a light - - - meter giving an underindication of about -- with bottle made up in the usual ---- -- under similar conditions records to one - two of the ----- amount when the bottles have been subjected to the above treatment.####
Supplied year and month
Author
Date
1888-12-00
Type
Subject
Folder/Volume ID
LM111-F
Microfilm ID
109:246
Document ID
LM111252
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University