Documents associated with: McEvoy, Charles A.
Record 2 of 23
System Number: 01988
Date: 13 January 1892
Author: Charles James Whistler Hanson[1]
Place: [London]
Recipient: William McNeill Whistler[2]
Place: [London]
Repository: Glasgow University Library
Call Number: MS Whistler H89
Document Type: ALd
Jan. 13. 92
Dear Dr Whistler,
I write to remind ask you to please send me the cheque as promised - as I
am have already under[made some slight?] includes gone to some expense in working at my invention. [Do send me?] Kindly send cheque to 16 Feather
Capt. McEvoy[3] thinks that Spagnolotti & Crookes[4] would light your place up as well as anybody and just as cheaply.
If you want to increase the light giving power of your storage battery you might have the incandescent lamp placed in a reading lamp thus:-
[Diagram of lamp and fixings & labelled, inscribed:] 'wood or ebonite ... section'
[p. 2] I made a mistake the other way, I find that
I find that
Th You cannot increase the candle power of your lamp i.e., have a 30 c.p. lamp for example without increasing the coupè of your storage battery. But [you?] if you want more light you can have two lamps place one lamp in a reading lamp as shown and then I dont think you will want a bull's eye or you can have two lamps placed in (connection in parallel) each the same as you have now thus:-
[Drawing[5]]
or put both inside a reading lamp[.] If you tell the man who makes the [Muater?] to connect both lamps in parallel he will understand. But Capt thinks one lamp[6] in the reading lamp, as shown, over page will give you as much light as you require - for it will concentrate the light. and[7]
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Notes:
1. Charles James Whistler Hanson
Charles James Whistler Hanson (1870-1935), engineer, son of JW and Louisa Fanny Hanson [more].
2. William McNeill Whistler
William McNeill Whistler (1836-1900), physician, JW's brother [more].
3. Capt. McEvoy
Captain Charles A. McEvoy (b. ca 1836), electrical engineer [more].
4. Spagnolotti & Crookes
A misspelling of the engineers Charles Ernest Paolo Della Diana Spagnoletti (1832-1915) and William Crookes (1832-1919), also a famous chemist and physicist.
5. Drawing
Drawing of two interconnected lamp bulbs.
6. lamp
Continued in the left margin.
7. concentrate the light
'lamp ... concentrate the light. and' is written in the left-hand margin at right-angles to the main text.