REFLECTIONS

1 / 4
20/7/1
2 / 4
20/7/15
3 / 4
The Oliver Hart-Parr Tractor
4 / 4
20/1/19

With the machinery in full motion for a coming history of the
Allis-Chalmers and Rumely operations, the Reflector finds himself
coming and going at breakneck speed this summer. As this copy is
being prepared (early July), it seems impossible that we are well
into summer, and rapidly heading for autumn! Old-timers used to
tell us that time seemed to go by more and more quickly as we got
older. At age 20, we didn’t pay a whole lot of attention to
that idea, but now it seems to make a lot more sense!

Although the correspondence is down slightly this issue, the
coming of many major engine shows and other summer activities makes
this very understandable.

The Reflector is happy to announce that we will be representing
both Gas Engine Magazine and the Iron Men Album
at this year’s Midwest Old Threshers Reunion, Mt. Pleasant,
Iowa. We look forward to meeting all of you and will be happy to
enter or renew your subscriptions to these magazines.

In the course of answering various queries for engine parts
etc., the comment has been made that the Reflector was
‘plugging’ the goods of a certain firm or individual. Such
has not been our intent. To better define this problem, please do
not send requests for engine or tractor parts to this columnrather,
we ask that you place these in the Classified Section. Many hobby
magazines publish an Annual Directory Issue or Buyers’ Guide,
wherein various vendors may advertise their wares. Stemgas is
studying this possibility now, and it may be forthcoming before too
long.

20/7/1  Jake Zilverburg, L. P. Route #4,
Aitkin, MN 56431 sends us a photo of a tractor he built during the
winter of 78-79. Using a 9 HP Briggs & Stratton engine, it has
a 1952 International ton steering sector, transmission, and
differential. The rear end has been cut down to 38 inches. Top
speed is 6 mph. In addition, Mr. Zilverburg has equipped it with a
number of attachments. Current plans are to restore an Alamo Type
A, 4 horse power engine. Needed are the proper colors, catalog
illustrations, and other information.

20/7/2  Q. We have an engine with the
following nameplate information: The T. L. Smith Company,
Milwaukee, Wis., U. S. A. Engine No. 63778, 475 r.p.m., 3 h.p. If
anyone in engine land has such an engine or information on same,
please let us know. Terry Warner, RR1, Mackville, KY 40040.

A.American Gas Engines doesn’t
even list this one in the Master Directory, so the Reflector
can’t provide any daylight on this one at all.

20/7/3  From Ray Rylander, 805 E. San
Rafael St., Colorado Springs, CO 80903 comes this comment:
‘It’s been my experience that the balancing of a lot of our
antique one-lung engines leaves something to be desired. Those
early engine designers just seemed to either ignore shake or
minimize it by incorporation of a large mass of stationary
iron.

‘Theoretically I know all the rotating and reciprocating
masses should be dynamically balanced on a machine at the design
speed of the engine; even so it is impossible to balance out
exactly the secondary inertia forces due to the angularity swing of
the connecting rod in one-cylinder engines.

‘But for us shade-tree flunkies out here in the sticks who
might desire a somewhat smoother running engine, just how should we
go about better balancing of our little toys?

‘Given two level steel parallels for the crankshaft assembly
to roll on, should everything be in exact static balance regardless
of the crankpin position, or should either the counterweights of
the piston-connecting rod assembly be the heavier? And
why?’

A.  First of all, the Reflector is no
engineer, and would guess to be only about half a mechanic. Given
this parameter, we’ll try to answer your questions.

1. We do not agree that the early engine designers ignored the
vibration problem of one-cylinder engines, nor do we fully
subscribe to the idea that adding mass was the final solution. A
great many of the early engines were designed and built by people
who had almost no formal education, but designed and built
primarily from images in their mind. A great many of these men
simply were unprepared for the complicated mathematics required to
get precise engine balance. In visiting some years ago with a
former engineer involved with the Associated engines from Waterloo,
Iowa, we found that shop balancing was accomplished by the use of
clamp-on weights which varied in size and could be situated
anywhere on the flywheel. By this trial and error method, the
balance was attained insofar as possible, and at that point the
flywheels were drilled exactly opposite from the weights,
or lead weight was poured into pockets designed especially for the
purpose.

2. Due primarily to the production cost, the great majority of
engines used a counterbalanced flywheel instead of butterfly
weights mounted directly to the crank cheeks. From the academic
viewpoint this was poor design, but it substantially reduced
production costs. To further complicate the problem, any engine
with a single crankpin, or in which the crankpins are not at 180
degrees is at best a compromise. If one was to balance the rotating
parts on parallels in exact static balance, without accounting for
the reciprocating parts, then the engine would be out of balance
horizontally. Likewise, if all the reciprocating and rotating parts
were balanced horizontally, the engine would be out of balance
vertically.

Roberts’ Gas Engine Handbook gives the following
criteria and formula:

The rotating weight consists of the crank arm, the crankpin, and
a portion of the connecting rod. The reciprocating weight includes
the remaining portion of the connecting rod, the piston, crosshead,
and any other reciprocating parts. To find the rotating portion of
the connecting rod weight, support the piston end of the rod on a
knife edge opposite the center of the bearing in a horizontal
position with the other end supported on a scale. The scale weight
is considered to be the rotating weight. Simply, five-eighths of
the total rod weight can be considered as rotating. The formula
will be as follows:

B = weight of both balance weights
M = weight of crankpin + rotating part of rod
K = weight of reciprocating parts + remainder of rod weight
J = weight of both crank arms
m = crank radius (half the stroke)
j = distance from the center of gravity of the crank arm to the
center of the shaft
q =distance of the center of gravity of the balance weight from
the center of the shaft
THEN,

                   
K
         ( M +  2 ) m
+ Jj
B  =   —–
                   
q

In many cases, the Reflector honestly doubts that the running
balance can be substantially improved over the original design,
although it is conceded that some engines have horrendously poor
balance. Although we know of no reprints on the subject at this
time, Roberts’ Gas Engine Handbook is an excellent
reference, as are several other early titles. Perhaps some of these
articles might be fully reprinted in future issues of GEM.

20/7/4  Q.What is the year of an old
Oliver Cletrac Crawler, s/n 18694? Donovan T. Carson, Box 249,
Lesage, WV 25537.

A.  Serial numbers for the Cletrac line
were received recently and are reproduced on the next page for your
information.

20/7/5  Q.We have recently acquired a
Fairmont engine and need some information. It is a Type QHB, 6 HP,
s/n 26956. Need the color, year built, etc. Brian Flatmoe, Star
Route, Box 510, Meadow, SD 57644.

A.  See March/April 1985 GEM, page page
16, in the ‘Readers Write’ section for information on
getting Fairmont information directly from the company.

20/7/6  Q. Can anyone supply information
on a Lalley Light Plant, Model HU44232, 32 volts. It uses a single
cylinder, 2-cycle Ferro engine and Atwater-Kent Type CC ignition.
Kenneth J. Wells, Jr., 419 Jerome Avenue, Burlington, CT 06013.

A.  All we have found is an old magazine
advertisement of about 1920 stating that this unit sold for $625.
This, plus an illustration of the engine appears on page 272 of
American Gas Engines.

20/7/7  Q.Joe B. Dill, RR 1, Box 26,
Lascassas, TN 37085 asks whether anyone has run across an old
warehouse scale built into a two-wheel warehouse cart.

A.  We recall seeing one of these years
ago in an old grain elevator. The cart did double duty, either to
haul feed or to weigh same. Except for that one instance, we never
saw another, and would guess these to be very elusive today!

20/7/8  Q. Dennis Silva, 10 Arrowhead
Drive, Griswold, CT 06351 is looking for information on a Kinkade
garden tractor, s/n 13615.

A.  Due to the great interest in old
garden tractors, the Reflector has been actively acquiring early
advertising materials, instruction manuals, etc. on these machines.
Hopefully, enough material can be gathered to make several
presentations in future issues of GEM.

20/7/9  Q. R. F. Durig, 1364 Eileen Drive,
Xenia, OH 45385 writes that he has been assured by an auto parts
distributor that DuPont Dulux colors are headed for obsolescence in
favor of the DuPont Centari line of acrylics.

A.  The Reflector hasn’t yet had an
opportunity to check this out, either with a local dealer or with
DuPont directly. More on this in future issues. Meanwhile, the
Dulux color codes easily translate into Centari numbers.

20/7/10  Robert A. Johnson, Route 2, Box
358, Canyon, TX 79015 writes that he has had reasonably good luck
finding original paint colors beneath the nameplate. Also, to
remove the plate, usually a small pin punch, or even a nail will
suffice to drive the brass pins out backwards in some cases.

20/7/11  Ralph R. Look, Wichita, KS writes
that in restoring a 1939 Allis-Chalmers B tractor, the front rims
were rusted out, although the center disc was OK. Early Volkswagen
car rims will press fit these discs, although they are an inch
wider than the original 4.00-15 AC tires. By narrowing these to the
original width, one can be back in business.

Oliver Crawler Tractor Production 1917-1957

TRACTOR MODEL

YEARS BUILT

SERIAL # START

SERIAL # EXTENT

ENGINE MAKE

TYPE OF ENGINE

R

1916-1917

1

1000

Buda

Gas

H

1917-1919

1001

13755

Weidley

Gas

W (12)

1919-1932

13756

30971

Weidley

Gas

Cletrac

Gas

F

1920-1922

1

3000

Cletrac

Gas

20K

1925-1932

101

10207

Cletrac

Gas

30A

1926-1928

6

1421

Wisconsin

Gas

30B (B30)

1929-1930

1601

3057

Wisconsin

Gas

40

1928-1931

101

1833

Wisconsin

Gas

55-40

1931-1932

1835

1889

Wisconsin

Gas

55

1932-1936

1890

3852

Wisconsin

Gas

100

1927-1930

50

158

Wisconsin

Gas

15

1931-1933

76

11999

Hercules

Gas

20C

1933-1936

12000

14547

Hercules

Gas

AG

1936-1937

14548

20201

Hercules

Gas

AG

1937-1942

2X0202

2X3398

Hercules

Gas

AD2

1937-1940

1N00

5N80

Buda

Diesel

BD Four Speed

1936-1939

1D00

4D236

Hercules

Diesel

BD Six Speed

1939-Up

5D000

20D387

Hercules

Diesel

BD2

1937-1938

1P00

1P16

Buda

Diesel

25

1932-1935

76

1372

Hercules

Gas

30G

1935-1936

1C00

2C79

Hercules

Gas

BG Four Speed

1937-1939

2C80

2C798

Hercules

Gas

BG Six Speed

1939-1944

3C000

4C718

Hercules

Gas

BGS

1944-Up

6C000

12C986

Hercules

Gas

40-30

1930-1931

76

399

Hercules

Gas

35

1932-1936

400

2835

Hercules

Gas

CG

1936-1942

2836

3246

Hercules

Gas

5M000′

5M608

Hercules

Gas

35D

1934-1935

10000

10217

Hercules

Diesel

40D

1935-1936

10218

10831

Hercules

Diesel

DD Four Speed

1936-1939

10832

11581

Hercules

Diesel

1L3000

1L4460

Hercules

Diesel

DG Four Speed

1936-1939

1E00

5E86

Hercules

Gas

EN (E31)

1934-1939

1B00

1B946

Hercules

Gas

E38 Pre-Streamlined

1934-1936

7B30

1B318

Hercules

Gas

E38 Streamlined

1936-1938

2H000

3H168

Hercules

Gas

E42

1938-1942

5H000

5H604

Hercules

Gas

E-62-68-76

1934-1941

1A00

5A330

Hercules

Gas

EHG-62-68-76

1937-1941

1R00

8R52

Hercules

Gas

ED-38-42

1938-1941

1AA00

9AA00

Hercules

Diesel

ED2-38

1937-1941

1S00

1S52

Buda

Diesel

ED2-42

1937-1941

5S00

6S80

Buda

Diesel

ED2-62-68-76

1937-1940

1T00

1T84

Buda

Diesel

EHD2-62-68-76

1938-1941

1V00

4V13

Buda

Diesel

80D

1933-1936

6000

6321

Hercules

Diesel

FD Four Speed

1936-1938

6322

6699

Hercules

Diesel

FD Six Speed

1938-1944

8Y000

9Y124

Hercules

Diesel

FDLC

1941-1945

1HA000

1HA272

Cummins

Diesel

FDE

1945-1952

10Y000

12Y376

Hercules

Diesel

80-60

1930-1932

113

409

Wisconsin

Gas

80

1932-1932

420

499

Wisconsin

Gas

80G

1932-1936

500

849

Hercules

Gas

FG Four Speed

1936-1938

1CA046

1CA054

Hercules

Gas

FG Six Speed

1938-Up

1CA500

1CA880

Hercules

Gas

GG (Twin Row)

1939-1942

1FA000

1FA0164

Hercules

Gas

(Co-op) (General)

1FA1000

1FA6886

Hercules

Gas

HG-31-42-60-68

1939-1951

1GA000

4GA998

Hercules

Gas

5GA000

51GA998

Hercules

Gas

52GA000

59GA858

Hercules

Gas

OC-3; 31-42-60-68*

1951-1957

1WH000

19WH448

Hercules

Gas

OC-3 Kerosene Distillate*

1951-1957

1WH000

19WH448

Hercules

Gas

OC-3-31 Cane*

1952-1957

1WC000

1WC312

Hercules

Gas

AG-6*

1944-Up

3X000

3X8829

Continental

Gas

3X8830

Up

Continental

Gas

AD*

1937-Up

1Z00

Up

Hercules

Diesel

DG Six Speed*

1939-Up

7E00

Up

Hercules

Gas

DD Six Speed*

1939-Up

1L5000

Up

Hercules

Diesel

0C-4-G

1956-Up

1TG000

Up

Hercules

Gas

OC-6-G*

1954-Up

1RM000

Up

Waukesha

Gas

0C-6-D*

1954-UP

1RCOOO

Up

Waukesha

Diesel

0C-12-G

1954-Up

1JR000

Up

Hercules

Gas

OC-12-D

1954-Up

1JXO0O

Up

Hercules

Diesel

OC-15-D

1956-Up

1VL000

Up

Hercules

Diesel

OC-18*

1952-Up

1KS000

Up

Hercules

Diesel

‘During years 1953 and 1954, these tractors were numbered
consecutively in the 3500000 and 4500000 series.

‘During years 1953 and 1954, these tractors were numbered
consecutively in the 3500000 and 4500000 series.

20/7/12  Q. Marvin E. Ruebush, Route 5,
Box 187-C, Staunton, VA 24401 is looking for information on an
Ellis 3 HP, 2-cycle engine. Also, the question is raised of an
article on page 17 of the May /June, 1971 issue of GEM regarding
Ellis.

A.  This catalog was supplied by Broken
Kettle Books, RR 1, Akron, IA 51001.

20/7/13  Q. Clayton Brimmer, 17430 Yankee
Road, Motley, MI 49336 asks for information on a Sears Farmaster
enginepaint colors, ignition, etc.

A.  You are probably referring to the
Cushman Cub engine sold by Sears as the Farmaster. These are not
especially rare, so finding information should not be too
difficult.

20/7/14  Q. I have a wrench marked
Independent on one side, and SP 116 with the IHC logo on the other
side. Where does Independent fit into the IHC picture? Gilbert
Irps, 3156 Waldron Road, Kankakee, IL 60901.

A.  As we recall, Independent was another
of the IHC acquisitions sometime around 1910-1912. Our files are
rather thin on this point, so some deeper research will be
necessary. With the big anti-trust suit that plunged IHC into
problems for several years, each acquired company functioned as a
separate entity under the IHC umbrella. Thus, the Deering and
McCormick lines operated more or less independently, and in direct
competition with each other for several years until the suit was
finally resolved.

20/7/I5  Q. Need information on the
Gladden garden tractor of which a photo is shown. It is a Model BB,
sn BB24711, 2 x 3 inch bore and stroke. Built by Gladden Products,
Glendale 4, CA. John D. Stoltzfus, Rt 41 & 10, Box 295,
Cochranville, PA 19330.

20/7/16  Q. Need information such as
color, etc. on a 4 HP Woodpecker, sn 7918, Type KBB. John K.
Rinehart, Box 267, Oldwick, NJ 08858.

A.  Pages 304 and 305 of American Gas
Engines illustrate several Woodpecker styles, but we have no color
information at present.

20/7/17  Q.Butch McAuliffe, Box 305, Wye
Mills, MD 21679 needs information and proper colors for a 2 HP
Jaeger engine.

READERS WRITE

20/3/41Ignitor Points Dennis
Miller, Ricanton, MN 55922 writes that he has successfully used
nail heads to make ignitor points.

Stuck Pistons Regarding the stuck piston dilemma, Dale
Nickerson, 8670 Glasgow Road, Cassadaga, NY 14718 writes that he
resorted to building a fire under, around, and over the water
jacket, getting the whole works red hot. After letting it cool down
slowly, penetrating oil was liberally applied to the piston. A
little persuasion with a hardwood block and a sledge usually brings
the piston out easily. CAUTION: Be sure to first remove the
nameplate and any other small or loose parts before starting this
operation! If the parts are badly rusted, soaking in water
overnight after the heat treatment seems to help immensely.

20/4/10Middlings Mill  Jim
Jones, 200 S. Spruce St., Centerville, IN 47330 writes concerning
wheat middlings. This is the coarse wheat particles sifted or
bolted out of the flour and with the bran flakes removed. In a
multiple stage roller mill, these middlings are processed in
succeeding roller stages. The middling mill mentioned in Joe
Morris’ letter would probably have been a secondary mill,
grinding the middlings after the first break. It would not have
accepted whole wheat grains, but the sittings from the first
grinding.

20/3/12Schebler Floats 
Jan van der Gugten, 2633 Ware Street, Abbotsford, BC V2S 3E2,
Canada writes that he uses cork such as is found with a woodburning
set, laminating the pieces together with ‘plastic resin
glue’ then finishing to the proper shape. Also requested is
information on color, etc. for the Fairbanks-Morse #2 Eclipse.

20/2/17Tiny Tim Power Plant The
Reflector inadvertently omitted the writer’s name for this one.
Our apologies! Should you have any information on the Tiny Tim,
please contact: William R. Hembly, RR 3, Macomb, IL 61455.

20/2/17Sieverkropp Engines Owen
W. Hawkins Jr., 11415 Colfax Road, Glen Allen, VA 23060 has
forwarded photo copies of some extensive Sieverkropp material which
appeared in the Nov./Dec., 1978 issue of Antique Gas Engine
& Tractor Magazine
. This Canadian journal is no longer
published, and copies are tough to locate. Perhaps we might be able
to reproduce some of this data in a future issue of GEM.

McCormick-Deering Hoods Nick Jonkman, RR2, Wyoming,
Ontario NON 1TO Canada sent a letter to Reflections sometime ago
noting that they were contemplating limited production of hoods and
side sheets for the 10-20 and 15-30 McCormick-Deering tractors. For
further information, please write to the above address.

20/1/19Jacobsen Lawn Mowers
John A. Ecker, 1870 Wallace Lake Rd., West Bend, WI 53095 writes
that he had a Jacobsen mower and encloses a photo of same. He also
has the original manual for his machine.

Norbert Keeley Castings Several people wrote concerning
the model Fairbanks-Morse Eclipse on page 12 of the June issue. All
were interested in knowing where these castings might be found.
Please let us know!

20/4/14A-C WC Serial Numbers WC
20941935, WC248101936, WC560061937. This information was submitted
by Milton W. Fox, RR 1, Bicknell, IN 47512. Further information on
AC serial numbers will follow.

20/2/26John Deere Serial
Numbers
Jamie Arnold, 6510 Panton St., Kilbride, Ontario LOP
1G0 Canada sends us this list of serial numbers for John Deere
‘E’, ‘EK’, and ‘EP’ engines.

Year

Serial # Run

# Built

1923

235001-235520

519

1924

235521-239584

4063

1925

239585-251330

15345

1926

251331-267415

16084

1927

267416-278809

11393

1928

278810-293418

14608

1929

293419-309640

16221

1930

309641-320082

10441

1931

320083-324624

4541

1932

324625-326377

1752

1933

326378-327780

1402

1934

327781-330830

3049

1935

330831-336008

5177

1936

336009-340879

4870

1937

340880-346131

5251

1938

346132-348081

1949

1939

348082-349924

1842

1940

349925-352434

2509

1941

352435-354899

2464

1942

354900-355866

966

1943

355867-356600

733

1944

356601-360791

4190

1945

360792-365478

4686

1946

365479-367985

2506

Note that this list also appears on page g as part of an article
on the John Deere Model E.

CORRECTIONS

On Page 9 of the June, 1985 issue, the Reflector incorrectly
attributed the receipt of some Delco materials to Mr. Gene L
Brandt, Nashua, MT 59248. Interested Delco collectors have of
course written to Mr. Brandt to discover the error. Because of the
large amount of mail, the Reflector knows not whence this material
came, so will the sender kindly let us know? This way we can refer
other Delco collectors your way. Our apologies!

A CLOSING WORD

As we noted at the beginning, we will be representing Stemgas
Publishing Company at the Midwest Old Threshers Reunion this year.
We look forward to seeing many of you, and hope we can spend a few
minutes visiting about ‘old engines.’

Editor’s note: Many of you have had the pleasure of
dealing with Durward and Koletta Steinmetz who for years
represented Stemgas at Mt. Pleasant. The Steinmetz’s are
retiring from this endeavor and Mr. Wendel will continue to serve
you on behalf of Stemgas.

The purpose of the Reflections column is to provide a forum
for the exchange of all useful information among subscribers
to
GEM. Inquiries or responses should be addressed
to:
REFLECTIONS, Gas Engine Magazine, P.O. Box 328, Lancaster,
PA 17603.

W. E. Neal of 613 8th Avenue, Charles City, Iowa 50616 recently
wrote to say he thought a lot of people would like to know when
Hart Parr and Oliver tractors were made. Below is a portion of an
official list which Neal got from the Oliver Company. We ended the
list at 1935, when the Hart Parr name was dropped. A complete list
of Oliver serial numbers is published by Alan King.

OLIVER TRACTOR SERIAL NUMBERS-FROM YEAR 1898 Years built-Tractor
or Unit Series-Serial Number Range

HART-PARR (1898-1929)

YEARS

SERIES

SERIAL #8

1898-

Stationary

1-1 305

YEARS

SERIES

SERIAL #8

1904

Engines

1924

Washer ‘A’

1 001-2 000

1901

17-30

1 205 (No. 1)

10-20 C

35 761-35 922

1902

17-30

1 206 (No. 2)

15-30 C

21 899-22 500

1903

18-30

1 207 (No. 3)

22-40

70 021-70 113

17-30

1 208-1 219

30-60

Special (4)

22-45

1 220-1 245

12-24 E

36 001-36 074

1904

22-45

1 306-1 345

16-30 E

22 501-22 601

1905

17-30

1 346-1 347

1925

22-40

70 114-70 250

22-45

1 364-1 393

12-24 E

36 075-36 600

22-45

1 415-1 434

16-30 E

22 601-24 000

1906

17-30

1 435-1 454

Washer ‘A’

2 001-2 700

22-45

1 445 (Canada)

1926

22-40

70 251-70 493

22-45

1 455-1 604

12-24 E

36 601-37 194

1907

30-60

1 605-1 810

16-30 F

24 001-25 650

1908

30-60

1 811-2 014

18-36 G

26 001-26 359

40-80

2 015-2 018

Washer ‘A’

2 701-3 300

1909

40-80

2 019-2 024

Washer ‘B’

3 301-4 571

30-60

2 325-2 331

1927

22-40

70 494-70 500

1910

15-30

2 332-2 352

12-24 E

37 195-38 118

30-60

2 432-3 310

18-36 G

26 360-28 850

40-80

2 025-2 100

18-36 H

28 851-29 635

1911

30-60

3 311-3 999

28-50

70 501-70 718

15-30

2 353-2 382

Washer ‘B’

4 572-5 571

40-80

2 0101-2 200

1928

12-24 E

38 119-39 601

60-100

4 000-4 100

12-24 H

39 602-39 686

1912

20-40

4 112-4 211

28-50

70 719-70 967

15-30

2 383-2 431

18-36 H

29 636-34 566

30-60

4 212-4 711

1929

40-80

2 200-2 275

60-100

4 101-4 111

Hart-Parr Co. merged with Oliver Farm Equipment Co. See
following charts.

1913

20-40

4 714-4 763

30-60 40-80

4 814-5 261 2 276-2 300

1929

12-24 H

39 687-42 277

1914

20-40

4 764-4 813

18-36 H

34 567-35 000

30-60

5 262-5 440

18-36 H

85 001-89 158

40-80

2 300-2 324

28-50

70 968-71 400

12-27

5 816-5 992

1930

12-24 H

42 278-43 253

Red Devil

6 219-6 244

18-36 H

89 159-90 698

1915

30-60

5 441-5 521

28-50

71 401-71 707

12-27

5 993-6 039

18-35

6 040-6 153

Note: Horizontal engines were discontinued, only vertical
engines used from here on.

Red Devil

6 245-6 743

1916

30-60

5 522-5 551

18-35

6 154-6 199

Row Crop Single

100 001-102 648

Red Devil

6 744-6 943

18-28

800 001-800 459

1917

30-60

5 486-5 640

’28’ P. Unit

Same

18-35

6 200-6 215

28-44

500 001-503 599

18-35

8 201-8 358

’44’ P. Unit

Same

1918

18-35

8 359-8 400

1931

Row Crop Single

102 649-103 300

30-60

5 641-5 715

18-28

800 460-800 963

12-25

’18’ Ind

900 001-900 006

15-30 A

8 401 -9 383

28-44

503 600-506 184

New Hart-Parr

Row Crop Dual

103 301-103 318

1919

15-30 A

9 384-13 025

1932

Row Crop

103 319-103 617

’35’ R. King

20 001 -20 050

18-28

800 964-800 984

1920

15-30 A

13 026-17 915

’80’ Ind.

900 007-900 018

1921

15-30 A

18 470-18 850

28-44

506 185-506 211

10-20 B

35 001-35 216

’99’ Ind.

700 001 -700 004

30 & 36 S.E.

55 001-55 235

1933

Row Crop

103 618-104 038

20 & 24 S.E.

60 001-60 084

18-28

800 985-801 050

40 & 50 S.E.

80 001-80 240

’80’ Ind.

900 019-900 021

1922

15-30 A

18 851-19 125

28-44

506 212-506 254

10-20 B

35 217-35 319

’99’ Ind.

700 005-700 033

10-20 C

35 501-35 527

1934

Row Crop

104 039-104 850

15-30 C

21 001-21 392

18-28

801 051-801 240

1923

’55’ Compr.

75 001-75 039

’80’ Ind.

900 022-900 036

’90’ Compr.

65 001-65 237

28-44

506 255-506 400

10-20 C

35 528-35 760

’99’ Ind.

700 034-700 141

15-30 C

21 393-21 898

22-40

70 001-70 020

From 1935 to 1937 on Oliver dropped the Hart-Parr name.

Gas Engine Magazine
Gas Engine Magazine
Preserving the History of Internal Combustion Engines