Pumping-Head. Page: 4 of 4
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1,117,772
for causing direct vertical pull on said pis-
ton rods and gearing provided with a crank
shaft and crank pins for operating said
rocker irms and causing slower upstrokes
5 of said s an (permitting faster down-
1 ke 0 1e lrms alternately.
In a pump head, piston rods adapted
to bed oppositey driven, - rocker. arms for
riifvilg si piston rods, pivoted at one
1'v' edant having the fre Pads extended to
the Line of rve f said piston rods, means
1t+'fexibly t' ihig ltsaid jistore rods to
the iue r) t:, i uLsaidf ree ends, and
leail for( diving isa rocker rimS consist-
15 ig of1 ge.t1i g oVidd with1 I rak shaft
ai0d1 lank 1)1iu o''ejati el eglagin) said
d oiis dii I ''passn1g )i) 'an 1i(1beloW the ceI-
ter)s oft te gear iees and alternately caus-
ing SowUe n1 d faster strokes of said arms.
1 i. polp id, ito) rods adapted to
be opposite dri Alen, rocker tars pivoted
it (th end and having the other ends curved
end formed into arcs relative to their piv-
ote d ends, said curved lends causing direct
25 vertical motion of said piston rods, means
for flexibly attaching said piston rods to the
upper sides of said curved rocker arms, and
means for driving said rocker arms con-
sist(ig of a crank shaft for driving the
3: central rocker ari. and gear wheels having
crank pits for driving the outer rocker
Ina 1 p)um lii head. piston i to ds adapted
to be oppositely drieniL and consisting of an
35 nn'er pisto rod and 1n OuPr piston rod, a
1)ir1 o r Cker s11,11.-otiliv motuteci at
one end an[d having their free ends: curved
and formed' into t aeS relative to their pi v
(ted i 'eCl0nds, means for flexibly1-o c ectin te
0 s outeC pI isO ) d to said 1,r -1cer ar r c s, a
til' rki r LmICiI itpitioli ot l s n15'1iitoedat
'n td nti d" tIii 11 lthe othelrendr d
:;liti for.'ied it o an ; ii:r.'t"rellCt .(1 t lit e pi -
.t .Q 1)d. n('tius For flxibly conn~ju1(eiung the
411 liner i.sL0t '{ rd tt) slit Icenitral oei:01. arm, ]i
'.he ctrved endl s o Si.+rocker ams cautsilg
Airect urciil miotion o()k Said p1;iton rods.
itnd mean s for di .I ipg si d. rocker arms 1
con' sistng of geatr w seels and . crank for
50 said gear wihee11s operatively connected tothe central rocker arm, and crank pins on
SL.id gear' wheels operatively connected to
the outer pair of rocker arms.
0. In a pump head an inner piston rod
ind an outer piston rod adapted to be op- 55
ositely driven, rocker arms consisting of a
pair of outer arms and a central arm all
pig oted 4 one end and having their free
ends ( I .iltia'U 1110 'int'o arcs relative to
th i pi\oted ends, tenS .tot flexibly COS- 60
itin the incie )tpn1p rod to the cents I
:'ockiei' 1111, mean .tot' lex1.-ily conniectin
Ine outer piilp rod to the outer rocker ar11,
the ciii ed 1ds5 of tile rocker arms au111sing
i11C1 VC -0il motio i said piston rods, l-u3
and means fot diving said rocker arms
'onisiting o' f gear<)ing~ provided with a crank
shvt operate ly connected to the central
rocker rm, and said gearing provided with
crankI 131E pins operatively connect d to the 70
OULte rocker arms, said rocker arms having -
longitddlinal slots therein for said crank
shaft aid for said crank pins. and roller
beaiing's ior said crank shaft and crank
pins to prevent friction against said rocker 75
arms.
In -1 pmnp head. piston rods, rocker
arms having a common pivotal bearing at
one end and having curved surfaces cas-
ing direct vertical motion of said piston si)
rods loiaiilttining' direct vertical pull of
said p'stun) .o(1s, means for 1. xibily cO-
nedting i U piston ' ds to said rociker ivim
a1d ilais for diving Sid rocker arms
COtiSistill U1 "g1'ar wheels and a 1'isit 1i'. I
ie 1) ci ls iidi rank shaft operatively en-
gag 'i)iig (nef s o f said i ms and crank pins
t'1I' wito said ear 1 "els and operatively
Cln ig iin the othICer 'l~'I QOmIIthe p cit "f n-
g'ent With Said :111m 1:7passingl (oWn- O'
.-diy betw'e'ln the slht1ft of said Aheels
'tid s,'d bearing and ) jxs sigI.Z upwii arily on
lie Ol)oSite side o shaft.
In ttest]ltiy whereof, I set 'lly hand in
tie presented of two witnesses, this .th day 95
tl' July l 1 '1.__
JOiN. L. BOiCOURrT.
Witness es :
A. L. JC os,
\. iR. (ChossLr.
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Boicourt, John L. Pumping-Head., patent, November 17, 1914; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth860047/m1/4/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.