Iowa

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Installed: May 7, 1922

Rattle Delivered to Minnesota: October 29, 1922

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"The pledge rattle was the outgrowth of comments at the National Convention Banquet about the 'baby chapter' which were relayed to us. Between dinner one evening and lunch the next day it had been independently suggested that there should be a baby chapter rattle by four of us. Probably Ed Wilsey, the first president of the Iowa Chapter was one of the four. At any rate, it was Ed who maneuvered the first pledge group into making the rattle. All eight of them worked evenings on it but three of them put so much effort into it that they were offered three days off of probation week. I believe this gave them among other things the privilege of eating with the active members. These were Clarence Butler, Arnold Nesheim, and I believe, Clark Barrett. Due to matching difficulties on the rattle the planned walnut base was not made and Minnesota was told they could make the base. This may have started the tradition that each chapter should add something. The plan was that the rattle should be supplied by a dime of the year of the installation of each chapter. However, a few years later the United States Treasury did not cooperate.

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"I might add informally that the Minnesota installation of the rattle was not completed and was represented by a ten-cent plastic one from Woolworth's." - Alan Rockwood
 

Minnesota

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Installed: October 29, 1922

Rattle Delivered to Armour: May 26, 1923

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The proposed Rattle wasn't ready for the installation on October 29, 1922, Brother Wilsey presented a beribboned, highly painted rattle to the Minnesota chapter.

Armour

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Installed: May 26, 1923

Rattle Delivered to Missouri: October 25, 1924

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The originally planned Rattle I was delivered at the installation of the Armour chapter on May 16, 1923. It is unknown what, if any, additions the Armour chapter made to Rattle I.

Missouri

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Installed: October 25, 1924

Rattle Delivered to Michigan: February 21, 1925

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Missouri Chapter's addition to the Rattle is unknown.

Michigan

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Installed: February 21, 1925

Rattle Delivered to Kansas: January 8, 1927

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Michigan Chapter's addition to the Rattle is unknown.

Kansas

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Installed: January 8, 1927

Rattle Delivered to Missouri Mines: December 10, 1927

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Kansas Chapter's addition to the Rattle is unknown.

Missouri Mines

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Installed: December 10, 1927

Rattle Delivered to Penn State: March 3, 1928

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Missouri Mines Chapter's addition to the rattle is unknown.

Penn State

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Installed: March 3, 1928

Rattle Delivered to South Dakota Mines: September 27, 1930

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Penn State Chapter's addition to the Rattle is unknown.

South Dakota Mines

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Installed: September 27, 1930

Rattle Delivered to Northwestern: May 25, 1935

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South Dakota Mines Chapter's addition to the Rattle is unknown.

Northwestern

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Installed: May 25, 1935

Rattle Delivered to Marquette: April 24, 1937

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The Northwestern Chapter added an eyepiece to either side of the cylinder. An inscription on the right side of the eyepiece reads "Northwestern 1935."

Marquette

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Installed: April 24, 1937

Rattle Delivered to Louisville: March 22, 1941

Object Added: Slide Rule

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The Marquette Chapter added a metal slide rule to the base of the triangle. The slider is set to 1937 (the year of installation). Inscribed on the bottom of the slide rule is "1937 Marquette Chapter."

Louisville

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Installed: March 22, 1941

Rattle Delivered to Cornell: April 18, 1942

Object Added: Gears

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The Louisville Chapter added a metal gear to the base of the rattle. A plaque on top of rotating gear reads "Louisville '41 Count 'Em."

Cornell

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Installed: April 18, 1942

Rattle Delivered to Michigan State: January 8, 1955

Object Added: Flywheel governor

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The Cornell Chapter added a flywheel governor to the top of the Rattle. At the time, it was touted as the only moving part of the Rattle. - Dan Rathmann.

Michigan State

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Installed: January 8, 1955

Rattle Delivered to Clarkson: November 16, 1957

Object Added: Conical base

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The Michigan State Chapter added a conical wooden base to the rattle. A plaque on the front center of the base reads "Michigan State Jan 8, 1955."

Clarkson

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Installed: November 16, 1957

Rattle Delivered to UCLA: December 7, 1957

Object Added: Triangular base

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The Clarkson Chapter added a large wooden triangular base to the rattle. A plaque on top of one point of the base reads "Clarson - Nov 16, 1957"

UCLA

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Installed: December 7, 1957

Rattle Delivered to Nebraska: March 16, 1963

Object Added: Blue filter

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The UCLA Chapter added a blue filter to the lens of the eyepiece. The filter reads "UCLA Dec. 7, 1957"

Nebraska

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Installed: March 16, 1963

Rattle Delivered to Iowa State: April 25, 1964

Object Added: Pair of dividers

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The following was read at the Kansas State installation banquet: "A chrome-plated pair of dividers, a basic tool of engineers, scientists, and architects, serves us as a symbol of measurement and exactness. From our past progress, it permits planning the futures of our fraternity." - Frank Vogt

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Inscribed on dividers: "Nebraska Chapter March 16, 1963"

Iowa State

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Installed: April 25, 1964

Rattle Delivered to Kansas State: September 7, 1964

Object Added: Rotating motor

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"At the Kansas State installation, Edward R. McCracken is64, Iowa State undergraduate president, stated that his chapter had motorized the Rattle to symbolize the rebirth of Triangle expansion. As the Rattle turns in all directions, we hope Triangle will expand in all directions, he asserted. Kansas State Colony President Hamleet accepted the Rattle." - Triangle REVIEW

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"An electrically powered motor rotates the 'Telescope' as in a search for new bench-marks. While hidden from view, this underlying power of motivation should remind us of the hidden power of enthusiastic members in their search for new goals which can be relied upon to carry Triangle on to greater service to its members in particular and humanity in general." - Frank Vogt

Kansas State

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Installed: September 7, 1964

Rattle Delivered to Oklahoma State: November 21, 1964

Object Added: Mechanical pencil

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"We at Kansas State have added a mechanical pencil to the history of the Rattle. It is our feeling that we should add the most important tool which the engineer uses. This we feel is the writing tool, the tool of communication. Looking further than the particular significance which a pencil may have for an engineer, the pencil emphasizes the importance of fostering the art of communication in our associations with those around us." - Kansas State Active President, February 1965

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Inscribed on pencil: "Kansas State Chapter September 7, 1964"

Oklahoma State

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Installed: November 21, 1964

Rattle Delivered to MSOE: January 23, 1965

Object Added: Lights

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"...Marty tells me you conceived and did the work on the Oklahoma State addition to the Rattle. Everyone was intrigued and impressed and those of us with Boy Scout or other Morse code training had a lot of fun reading the message. I'll mention your contribution in the next issue of The REVIEW. It won't give the message away to too many pledges, if any. The idea of having them read the message of the lights adds an extra dimension to the Oklahoma State addition to the Rattle." - Letter from Herb Scobie to Jack Allison, January 1965.

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A plaque on one side of the wooden base (added by Clarkson) reads "Oklahoma State Chapter."

MSOE

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Installed: January 23, 1965

Rattle Delivered to RIT: February 4, 1967

Object Added: Metal Attachment

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Engraving: "Jan 25 MSOE 1965"

RIT 

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Installed: February 4, 1967

Object Added: Engraved plated on a conical base

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"The RIT chapter had chosen a simple but fitting addition. Arranged in two tiers of engraved plates encircling the conical base are the name and installation date of each chapter of Triangle from its incorporation in 1907 to the installation of RIT on February 4, 1967." - George Komorowski

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After RITs additions to Rattle I, it was retired and Rattle II was constructed.

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Notes: The South Dakota Mines plaque reads "11-27-30" instead of the correct date, "9-27-30." The order of the UCLA (12-7-57) and Nebraska (3-16-63) plaques is reversed.