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 20 y Foreword 1 ' - ‘ , . ' :- , -<
k ' It is significant that the . 1 v . -, j: a .
mortality rate has declined'in ' . . ‘ I, I 3 3
the United States almOstvin direct I. ' ~ " :
prOportion to the applicatiOn . , ' E. , ‘ 1
. - ‘ of sanitation measuresr We are , 7‘
proud of the important . _ ,. ' 1 . i 1
.I" E '. developments of P.F.T. which _ I, ‘ ' E 1
‘ \E‘v" , have been no small factor in . 1 ‘ 1 , ’ ’ V‘ E3
‘3; «lV‘GaEL bringing about safe sanitation f ,V j :
31-21;? fl , ' for the nation- ' 1 > " . . 1
.13 gill-gufi EL};- A 1 t E}; n Since man began'to dwell ~ 1 '
hf». \1,§\WK%. ~. “a together in communities, wastes " f i. 1 ‘
”if“; i; .1 1‘}, '3' E disposal has been a problem. ' ' ‘ ' 7
, 5c. {1) ’11:??? a”; While some wastes are more readily ‘ .. , ‘
~ ill 1&51177‘AT77 " disposed of, sewage, by its very ., ‘.-
it. i "’ nature, has baffled man; and ‘ . 5 I
_' . , ‘ not until the beginning of this . 1 E -
i l": ‘ «""“? , E . century was real progress, made in " . .1 _
3% EE ’ Whig“ _, ‘ - its scientific treatment- _. 1 _ ‘ ' * l
”’6 E, “>»‘” {‘E “ - We point with pride to many , - '. 1 '
tilt“ \ljg‘ew a sewage treatment plants, a . l_ * ,1
'5' “El! gag \“f 1*: large andsmall, whlch stand as , * .
a: ‘Mmiéw ~' the experimenters who had the 1 _ 1 . 1
til-fir: f; If?“ ‘11 {w _1,‘ . foresight to set up means of * z E
f If; X l \‘i ' restoring our streams and . s E 1. .‘ 1
2" M 3. protecting the health of our * " . V..?
f I % . ©Pucnf|c FlushATank Co. 1964:. . V. 1 j ;1
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a,

 P.F. T. ’8 Background, .
As early as 1890, Sidney W. Miller, . '
f founder of the Pacific Flush Tank Com-.
; ‘ pany, was actively engaged in the devel-
," opment of equipment with which to , ‘
j 7 as 3 cope with the sewage; problem. In 1891 f ' '
lkfi ~—' he formed the P.F.T. organization at '
.:. iilfi‘kf‘ " ’ ”h"L .'§' -. Pasadena, California, to manufacture
l (1334 = . the Miller Automatic Siphon for flush- j-
" . g *1 -.‘”; /r..T~r1 .” . ”“.» é - ing sewers—the first of a series of equip-V ‘
) fil 'l‘é ’,,/£4” ment developments. To be more cen-. ‘ , '
4:31;? /’,f«-’ ' > _, "T ‘ trally located,the firm, already enjoying ' ‘ T .
K, 11'; fl‘; ll 1': ’/“fi”“"l‘” ' ‘ T considerable success, moved to Chicago .‘ ‘
7231313 l}! m1; 3 ‘ in 1893 at the time of .'the World’s "
5;“; -;_, :_ :1,“ ‘ :-‘ { Columbian Exposition at which awards ; ”
1'” f5 ' 11m «:1; n- ;_- I; were receivedfor the development of "I
.5;: ‘3,” 5 ~_.- -. .:.». "'T j P.F.T. Flush Tank Siphons. W '
“Vi. 7‘21 , .1117 m” . 3T2: 3* * . T . ‘ . , ,
111.32%; 333% a: I; :2. , - .. , “ - ' . , .
«:3 as“ Ta“: 1 ' P.F. T. ’8 Leadership ' _' 1
“ML- 5 rag\::‘ \Jh‘r‘k Tk—F‘l Fromthe very first, P.F.T.’s growth ‘ I ,
k @FQ fir/up “rm , 7 _ has been continuous. Early in its career, ' , y - -.
§‘f W%§\‘-\ \ 53‘ “T P.F.T. assumed the leadership of the _. , ‘ ‘ T _
%_§\ _, R- \\.__,.L sewage equipmentindustry which it has ‘ .’ ,
if}: vilifg‘T‘.\‘\ ’8‘}; {SW-31 rightfully maintained. Qualified sewage ‘- , \_ 2‘
1 _ 2 iii: “if 8%,. :T.‘ treatment engineers gravitatedto P.F.T. » ,'
«.11 “I "_f —.~L; E__‘LELQJ “i; in its early history—menwho through ' " '
..‘:\,_3 \J‘fifiw—gx _ :l , their researchactivities and field studies I T
_;T\<§~-jr~q~ 5""; ‘ have made important c0ntributions to . ‘_
7 ‘* is lot? “55? ' ‘ ' safe sanitation. ‘ ' _ f
f¥__\m 6:1,; /’ 3/ P.F.T. development of siphons and , ' ‘ .
r 3,.. :, “T” " siphon controls for Sand Filters, Con-3
'5 , ' f ._ tact Filters and Fixed Nozzle Filters led‘ -
” f ' to the widespread use of their secondary , ‘ T
i 3” treatment devices. P.F.T.- designed and ‘_ - ‘ "
5' X manufactured the first American built “
g , Rotary Distributor. ‘ ‘ 'i ' , ' - ‘

 IIJ‘.‘ If , ,, ‘_ .

«I I.

III-I I I If I” I": In 1911 we introduced from Germany

I I I ., 3:‘; the Imhoff Tank which for many years

. 5? ' " I - H was widely used and, in fact, is still in

guy-iiéi'v-‘av I. ' ,.- 14'" 1’ use in many installations.

I‘;, 3; a: 3g With the introduction of separate

fi£gfixft sludge digestion, we developed the I

~ ,1.” (\ \dggr’ I“: Floating Cover type of Digester which

II“ ‘7’ (;;;/“:45 44v"; is now the most widely used of all types

@IIII::* f/ of .digesters. To insure safe, effective

, . 1%; ’“jf'f'i utilization and disposal of gas produced .-

I; \ Mil/fl“ “SIC-W WI in the digestion process, the P.F.T.

: ' , 3:54,} I Company pioneered in developing the

”ff; [II/_;:* 15‘ complete line of. P.F.T. Gas Safety .I

: ’, in .f ..I: I! I I 'I’-{L Equipment excluSively for sewage treat— I

I ,: ”31$ ' h l I..I ment plants.

, I . If £12: I "‘I., As an aid in the proper control of I

I .-’ I, ,;;; I '.II} _I_ digesters and to increase the effective- I

’ If ‘I' ,_\ fame; I95“ I‘ I)“; A, I ness of these units, P.F.T. developed I

I;{ ' ”qr/2:25;; «I ' 7 the external Heater and Heat Exchanger I

I ' ”fig/{i and the first automatic dual fuel burners

- I _:5:vi”:_';i f L, ,5 $3 in the field of wastes treatment. The I
5*; /€ , ',"{fJ‘/'f/“'I*“\_;Il I) process of external sludge heating and I
'.,i‘x‘.~';m.“m"+_“" II ”Jig; i the deVice for accomplishing it repre— ,,

'_ -' I}; 1'2;"!§_{ sents one of the major forward steps in ‘
5L" ,1 4 . ‘I' I' ;‘E,’ ‘-§‘;‘&‘II‘;LZ:-.2,I? . _. 1 I

egg 3 4:“ ’7 ”:25; a II: the digestion process. The most iecent I

: “IT III Igpf I51: deVice for the effective use and control
2 I‘M- ‘ IL?” E‘tIlr‘Ili.” ;‘ of separate sludge digesters is the P.F.T. I
;;; r\;‘ . / 17:1 5“; III, 1"- ? Pearth Gas Recirculation Process which I‘
Ila: _fifiéfi/ I eliminates scum and increases digester

”I, 4,., $~ ' 4,411 effectiveness. Widespread acceptance of I
I' _ “i ' ’I‘.?! I' P.F.T. Pearth indicates its usefulness in

I. I/ ,- jn. IKIIAI MI the “Controlled Digestion” process.

5" . 2:?» Ix": VIII, IIIIIIIII I; As a supplement to the baSic tools of ;

:I:\\\‘~I-f3=,:I 45.1; "V1,;4I; I “Controlled Sludge Digestion” consist— III

III ‘~ I" I , I ' I”: ing of the Floating Cover, Gas Safety II

It? I WT gig; Equipment and the Heater and Heat 2‘
I: I‘Ifia“ ;Q"41‘.".J: Exchanger, P.F.T. has developed and -,
3..“. :’AII'IIIyr marketed Supernatant Selector and I

IILIfiI/II I jI; 'I, {II 'I Gauge Units, Cover Position Indicators [I

III ;;;-II I I I; f m and P.F.T. Duo-Deck Floating Covers .
> v " I i '5' f0? dlgesterS- I
.:: I.I;Etir v ;,
~J .II I I

“m; '_3‘ _ ~I .. I! , 1..

‘2 ’1 " ‘ »- Magnetism lasm‘ , v"; .4 '
M
.‘.:3"’I‘I.Y’.”’£:I§n—zt.;.~»- :.I I.

 The achievements and developments of P.F.T. are not limited
to the separate sludge digestion portion of the sewage treatment
process. The introduction of" a Rotary Distributor with a long—
body, non-clogging spre