Montgomery County sentinel. [volume] (Rockville, Md.) 1855-1974, 1877-09-07
CAUTION TO THE PUBLIC.


H6GERsTowN, Mp, September 3, 1871.
There are to my certain knowledge, Drills
being manufactured and offered Tor SAFE IN
this and other sections Of the country on
which are used some of my patents in whole
or in part, and hereby give notice that Inc
Hagerstown Agricultural Implement Manu-
featuring Company have the exclusive right
to use in manufacturing Grain, Seed aud
Fertilizing Drills my patents on grain and
fertilizine drills. Aud any one else making
using or selling Drill or Drills on which are
used amy Of the claims of my patents are IN
fringeing and are liable to prosecution tor
damages. The following are my claims that
are being infringed
In my patent "A, O98 dated Sept 9th, 1864,
the claims read thus: First--The cOmbiha-
ZION Of the rubber spring D, with the caps
E. & G. Tor rhcir equifalentsl the central rod
l., and the shovel or share substantially In
the manner and for the purpose set forth
Second-l claim the arrangement aud com't-
nation Of the lever C, stirrup H. provided
with caps g. with the rod l., and cap Z, sub-
stautially in the manner and for the purpose
set forth
In my patent No 50 40 dated Sept Goth
1865, my claims read thus First-The
above described check link for the purpose Of
| limiting the motion Of lever or bar g, sub
stantially ms set forth. Spcond--The arrange
ment and combination Of the link II the bar
or lever G, and the boot A, with the spring
for giving fexibility to the boot and shovel
substantially in the manner and for the pur-
pose set forth. In my patent No 81 545 dated
Jahuary Goth, 1861, my claims read ihus;-
First in the arrangement Of Il flexible boot or
| shovel plough with lever and a spring.
claim placing the fucrum of the lever be-
tween the boot and the spring substantially in
the manner ard for the purpose set forth.
Secoud-l claim the vibrating seat for sup
porting the spring in combination with lever
substantially as set forth. Third also claim
the use Of the washer w, or its equivalent in
combination with the cap S. and spring l..
substantially rs described. FOURTH claim
The above described arrangement Of the
thumb-screw T and guide pin p for coul-
pressing the spring aud thus increasing the
tension Of the same substantially as specified
The substance Of the first claim Of my
patent No. "A 098 is the combination OF the
rubber springs with the caps or washers AT the
upper and lower end Of the spring with iianges
to hold the spring to its place or the equiYa-
lent to prevent the wearing Of the hole in the
rubber spring.
The substance of the first claim Of my
patent No. 30, lao is the link holding the
spring bar flexible and limiting the motion Of
same.
The substance of The first claim of my
| patent No. 6 ,545 is placing the central hear
ing OF the spring bar between lhe boot and
! the spring.
The substance of the second claim on my
patent No. 81 ,545 is making the SCAT on which
he gum spring rests TO vibrate, so AS 10 press
straight against the spring as the end OF the
spring bar works up and down.
| have already notified the manufacturers
Of the Farmer Friend. the Buckeye priI and
other manufacturers Of spring hoe Drlis to di,-
! coulinue the use OF any of the above patents,
and any agent or farmer selling or uscing ANY
| Drills vita any OF my patents attached will
4 be dealt with according to the Patent Laws
| made aud provided for in such cases. The
/ following are few decisions on infringe
Henis JOHN F. KELLER
/ AN Infringement takes place Whenever a
| party ayails himself OF the invention Of the
| patentcc without such variations as viii CON
stiiute new discovery. (Rich vs. Lippincott,
/ Grier, J Pa, 50
See Curtis on Patents, Part ". Sec 202
/ at is therefore IN Infringement 10 make q
! patented machine for use or for sale, though
in fact il is neither used nor sold il is au in
/ fringemeut TO use it, though made by another;
/ it is infringement TO sell it, whether made by
one s selfor by another because thesa ves,s
! the exclusive right Of doing all these things IN
/ the pateniee." Same part ", 2uS.
/ Making, using or selling patented machine
/ is an Infringement BROOKS vs.. Bickuell-
! Mclean j. Ohio. 1913
! TO infringe patent right, is not necessary
| that The Thing patented should be adopted in
every particular, ii the patent is adopted sub
siaulially by the defendants, they are guilty
/ Of an Infringement (iiOot vs.. Bali; Mclean,
| j., Ohio, 1867
| lfa person uses the invention Of ratentee,
| he iufringes whatever rev Invention he con-
meets it. Brooks vs. Fiske, Spruguc. J
| Mass, 1851 Mere formal changes OF ma
| chinery do not evade a patent (Sickles VS..
Borden, Aelson, J I, N. Y, 1860