—Lancaster Farming. Saturday, May 9, 1959
14
USDA Engineer Devises
Tractor Auto-Pilot'
Precision cultivation o f
row crops is possible with an
automatic pilot ior farm
tractors designed and labor
atory tested by U. S. Dept,
of Agriculture engineer
Louis A Liljedahl, stationed
at the University of Minne
sota, St Paul
This new device is expect
ed to increase the effective
ness of cultivation as a
means of weed control.
The steering control sys
tem enables operators to
guide tractors more accurate
ly, thereby making possible
finer adjustment of cultiva
tion machinery for control of
weeds without damage to
the crops.
The automatic control is
intended for use in conjunc
tion with power steering
hookups which are featured
on modern tractors
Lightweight feelers, capa
ble of sensing the position of
the crop row- in relation to
the tractor’s front tires, are
used in the automatic pilot
to close switches when the
tractor moves too close or
too far from the row.
The microswitches, in turn
open valves that permit hy
draulic pressure to turn the
front wheels into ahgment
with the .row A linkage sys
tem between the front
wheels and the switches * au
tomaticaLy straightens the
front wheels as soon as the
tractor returns to the cor
rect position.
Main problem overcome -in
developing this device in
volved finding a way to use
fairly simple equipment low
enough in cost to be a profit
able investment for fvmers
seeking to do a better job of
cultivation
Mr. Liljedahl began his
search for such a device with
mathematical studies, first
deriving basic equations for
the design of simple on-off
type steering controls.
DEAD ANIMALS
REMOVED PROMPTLY
Will Pay Full Value
For Dead Animals
Dealers in Bones, Tallow
and Hides
FRY'S RENDERING
WORKS
Prop., John Fry
2114 Hollinger RD.
Lancaster
Ph. EX 2-4815 If No Answer
Phoß* EX 7-0472
STANDARL
Equipment, Inc.
Announces Its
6</o
BIG
Spring Discount
issALfe
ON
All-New
Bam Cleaner
Easy-All Comfort
Stalls
SALE CLOSES
TMY 31
Cope & Weaver
WILLOW-STREET
Ph. Lane. EX 3-2824
REVIEWS
A total of 46 registered
Holstein daughters and grand
daughters of SPABC sires,
were sold April 30 at the sec
1
\ 'Lit
XBpp-- IMT
R.D. 1, MOUNT JOY;PA. .
MAY SPECIALS
(■Warehouse Clearance Sale!
WTCMUHM**
MMUm
ON NEW and USED FARM EQUIPMENT
54 VE-BARGADMS GALORE-54 VE
McCormick Farm Equip. Store
1054 S. STATE ST.
When Yout Electric Is Off
Make Your Own Power
ELECTRALL 12 Kw.
GENERATORS
On Wheels
$539.00
Original List $1025.00
55 PTO
McCormick Baler
Hydraulic Tension
$1540.00
Save $B5O 00
C-72 BLADES
For
Super C and 200 Tractor
A STEAL AT
$145.00
No. 36-7'3" FAST
RE-CONDITIONED USED TRACT
200 FARMALL TRACTOR .
FARMALL CUBS TRACTOR
FARMALL M.D. DIESEL ....
FORD FERGUSON TRACTOR .
34F 3-16" FAST HITCH PLOW .
C-200 DISK PLOW F. H.
45T McCORMICK PTO BALER .
SOT BALER with Engine
N. H. 66 BALER with Engine ...
MASSEY HARRIS 7' PTO COMBINE
10-7 GRAIN DRILL .
* 40 McCORMICK PTO SPREADER
ond “Progeny Sale” sponso
red by the breeding coopera
tive, in Willow Street. The
Sale grossed $28,135 for an
average of $612 per head.
Top individual was a “Luci
fer” heifer selling for $1,625
bought by Irvin and Levi
Weaver, former Lancaster
Countians frojn Bath, NY.,
from Charles Stroh, Suffield,
Conn Paul Hess, Lititz, paid
$1,350 for “Tum-A-Lum Iv
anhoe Gay”, consigned byAl
do Panciera, and a daughter
of Osborndale Ivanhoe, Nine-
NEW EQUIPMENT
230 FARMALL TRACTOR $1875.00
330 INTERNATIONAL TRACTOR $2600.00
350 INTERNATIONAL TRACTOR $2675.00
350 FARMALL TRACTOR $2875.00
450 FARMALL TRACTOR $3200.00
Serve Up To $1240.00
HURRY, HURRY, HURRY
No. 245 THAIL-BEHIND TRACTOR
CORN PLANTERS
With Fertilizer Attachment, Deep Disk Applicators
Save $lOO.OO $295.00
2-C-10 1-Row Mounted Com Picker
For Farmall Super C and 200 Tractor
YES, IT’S NEW . . . ONLY
ITCH DISK HARROWS .... $ 139.
Used One Season
YOUR INTERNATIONAL
teen animals surpassed the control of '
$6OO mark, going to seven highly destructiv
states. The majority were T . , 4 ve 4,
purchased for herds in the ~, ' . *; sts at
SPABC area, however. Md each of th es J
was applied t 0
fccted foliage 0 l j
USDA research scientists as of a r oinbin?
report that two new fungi- eithe r C °of bl fh atloll
cides, Phaltan and Cyprex, Aramite or Ai a v ( , t 'i
will provide almost complete both DDT and r
„ _ n \
PHONE RE 3-2283
$650.00
ORS AND FARM EQUIPMENT
r McCORMICE DISK HARROW
WOODS 1-ROW PULL TYPE
CORN PICKER - Like New .... 84P
3-SECTION SPRING HARROW .... s? '
OLIVER 8' SPRING HARROW ....
FARMALL H CULTIVATOR 50,t
EARTH MASTER WHEEL
CONTROLLED DISK HARROW ..
25V McOORMICK MOWER ..... l2 °\
C-21 MOWER ■ 7 ft.
16L - 3-14" REMOTE CONTROL 3S^
Like New
HARVESTER DEALER
. $1250,00
5 C 0.00 up
1380.00
425.00
230.00
160.00
495 up
550.00
840.00 I
850.00
85.00
625.00 |
♦ V *
$1175.00
34 HM MANURE
LOADERS
For Farmall H and M
300 or 400 Tractors
O Save $200.00
EPHHATA, Pi
McCORMICK
BALER TWINE
Only $7.70 P er
SUPPLY LIMITED
45T McCORMICK
PTO BALERS
A REAL VALUE AT
$375.00