Celebrating 20 Years on the Web
TODAY IN SCIENCE HISTORY ®
Find science on or your birthday

Today in Science History - Quickie Quiz
Who said: “I believe that this Nation should commit itself to achieving the goal, before this decade is out, of landing a man on the moon and returning him safely to earth.”
more quiz questions >>
Thumbnail of Luther Crowell (source)
Luther Crowell
(7 Sep 1840 - 16 Sep 1903)

American inventor whose best-known invention is a machine for making the square-bottomed paper bag. He obtained over 280 patents in his lifetime. His first patent was for an Aerial Machine.


UNITED STATES PATENT OFFICE.
LUTHER C. CROWELL, OF WEST DENNIS, MASSACHUSETTS.
IMPROVMENT IN AERIAL MACHINES.

Specification forming part of Letters Patent No. 35,437, dated June 3, 1862.

To all whom it may concern:

Be it known that I, Luther C. Crowell, of West Dennis, in the county of Barnstable and State of Massachusetts, have invented a new and Improved Aerial Machine; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the accompanying drawings, forming a part of this specification, in which—

Figure 1 for Luther Crowell patent 35437 Aerial Machine
Patent Fig. 1. - Side Elevation
image enhancement © todayinsci (Terms of Use) (source)

Please respect the colorization artist’s wishes and do not copy this image for ONLINE use anywhere else.

Thank you.

For offline use, click Terms of Use tab on top menu.

Figure 1 represents a side elevation of my invention. Fig. 2 is a plan or top view of the same. Fig. 3 is a front elevation of the same.

Similar letters of reference in the three views indicate corresponding parts.

This invention consists in the arrangement of two or more flat sharp-pointed hinged wings capable of being turned up into a horizontal position or down into a vertical position and of one or more rotary hinged propellers the shafts of which can be brought in a horizontal or in a vertical position or to any desired inclination, in combination with a pyramidal winged steering apparatus or rudder and with a suitable car, in such a manner that from said car the motion of the whole machine can be controlled by the position given to the propellers, to the wings, and to the rudder.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation with reference to the drawings.

The wings A are composed of a light substantial frame work of wood or any other suitable material covered with oiled cloth or silk or other material impervious to air or gas, and they are so arranged that there will be a space of two or three feet between the top and bottom coverings. When the machine is to be used, this space is filled with hydrogen or other suitable gas. The wings are hinged to the frame work B' by means of loops and eyes or in other convenient manner, so that they can lie turned down into a vertical position, as shown in Fig. 3, or up into a horizontal position, as shown in Figs. 1 and 2, their position being adjusted by means of ropes a b, which are firmly attached to the outer edges of the wings, the ropes a passing through arms c, that are fastened to the frame work B', and over a standard, d, down to the car B, and the ropes b passing from the edge of the wings direct to a standard, e, and thence to the interior of the car.

Figure 2 for Luther Crowell patent 35437 Aerial Machine
Patent Fig. 2. - Plan or Top View
image enhancement © todayinsci (Terms of Use) (source)

Please respect the colorization artist’s wishes and do not copy this image for ONLINE use anywhere else.

Thank you.

For offline use, click Terms of Use tab on top menu.

The car B is connected to the frame-work B' by means of hinges or pendants f', and it contains the engine, the operators, and, in fact, everything intended to be carried up in the aerial machine. It is constructed of such material as combines strength with lightness and its size is in proportion to the size of the wings. The standard d, which supports the ropes a for turning, the wings up into a horizontal position, rises from the upper surface of car B, and the standard c, which supports the ropes b for turning the wings down in a vertical position, projects from the lower surface of said car, and the ropes a b are attached to a suitable windlass or windlasses in the interior of the car for the purpose of adjusting the position of the wings.

C C are the propellers, which are intended to revolve in opposite directions, and which are attached to the outer ends of shafts D. A rotary motion is imparted to these shafts by means of linked bands or chains f, passing from the main wheel in the interior of the car over a drum, g, that has its bearings in suitable cross-bars in the frame-work B', and from that drum over pulleys or chain-wheels h at the inner ends of the propeller-shafts. The bearings of said shafts are so arranged that the shafts can be turned down in a horizontal or up in a vertical position without interrupting their rotary motion. This object is effected by making the bearings near to their inner ends in boxes i, which are hinged to one of the cross-bars of the frame work B', and the other bearings of said shafts are in the ends of an arm or cross-bar, j, which forms a portion of a derrick or lever frame, j k, that serves also to raise or lower the propeller shafts with the propellers. The inner end, k of the derrick j k connects by a rope, l, with a suitable windlass in the interior of the ear in such a manner that by the action of said windlass and rope the propeller-shafts can be raised or lowered at pleasure.

For the purpose of steering the machine a winged pyramidal rudder, F, is suspended from the rear end of the frame-work B', and said, rudder is provided with four cross-shaped arms, m, from which cords or lines extend to the interior of the car for the purpose of adjusting the position of the rudder.

Figure 3 for Luther Crowell patent 35437 Aerial Machine
Patent Fig. 3. - Front Elevation
image enhancement © todayinsci (Terms of Use) (source)

Please respect the colorization artist’s wishes and do not copy this image for ONLINE use anywhere else.

Thank you.

For offline use, click Terms of Use tab on top menu.

In order to preserve the water, the exhaust-steam from the interior of the car maybe carried through a longed curved pipe outside the car, so that the same condenses readily either in the pipe or in the feed-water tank, or it may be condensed in any other desirable manner. When it is desired to ascend with this machine and to carry up a certain load or weight, the wings are turned down to the position shown in Fig. 3 of the drawings, and the propeller-shafts are turned up in a vertical direction, and when the desired height is attained and it is desired to progress in a horizontal direction the wings are raised and the propellers lowered to the position shown in Figs. 1 and 2.

When it is desired to employ this aerial machine as an engine of war, it could be elevated, loaded with shell, and when arrived over the desired spot the shell could be discharged.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is—

The arrangement of the hinged wings A, car B, and pyramidal winged steering apparatus or rudder E, in combination with the adjustable hinged propellers C, constructed and operating substantially in the manner and for the purpose herein shown and described.

LUTHER C. CROWELL.
Witnesses:
Ored Baker, 2d,
Zadak Crowell.

Images based on figures with patent record. Image enhancements © todayinsci.com. Text from U.S. Patent Office. (source)


See also:
  • 7 Sep - short biography, births, deaths and events on date of Crowell's birth.
  • Luther Childs Crowell - Biography of the Cape Cod Inventor of the Square-Bottom Paper Bag Machine.

Nature bears long with those who wrong her. She is patient under abuse. But when abuse has gone too far, when the time of reckoning finally comes, she is equally slow to be appeased and to turn away her wrath. (1882) -- Nathaniel Egleston, who was writing then about deforestation, but speaks equally well about the danger of climate change today.
Carl Sagan Thumbnail Carl Sagan: In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) ...(more by Sagan)

Albert Einstein: I used to wonder how it comes about that the electron is negative. Negative-positive—these are perfectly symmetric in physics. There is no reason whatever to prefer one to the other. Then why is the electron negative? I thought about this for a long time and at last all I could think was “It won the fight!” ...(more by Einstein)

Richard Feynman: It is the facts that matter, not the proofs. Physics can progress without the proofs, but we can't go on without the facts ... if the facts are right, then the proofs are a matter of playing around with the algebra correctly. ...(more by Feynman)
Quotations by: • Albert Einstein • Isaac Newton • Lord Kelvin • Charles Darwin • Srinivasa Ramanujan • Carl Sagan • Florence Nightingale • Thomas Edison • Aristotle • Marie Curie • Benjamin Franklin • Winston Churchill • Galileo Galilei • Sigmund Freud • Robert Bunsen • Louis Pasteur • Theodore Roosevelt • Abraham Lincoln • Ronald Reagan • Leonardo DaVinci • Michio Kaku • Karl Popper • Johann Goethe • Robert Oppenheimer • Charles Kettering  ... (more people)

Quotations about: • Atomic  Bomb • Biology • Chemistry • Deforestation • Engineering • Anatomy • Astronomy • Bacteria • Biochemistry • Botany • Conservation • Dinosaur • Environment • Fractal • Genetics • Geology • History of Science • Invention • Jupiter • Knowledge • Love • Mathematics • Measurement • Medicine • Natural Resource • Organic Chemistry • Physics • Physician • Quantum Theory • Research • Science and Art • Teacher • Technology • Universe • Volcano • Virus • Wind Power • Women Scientists • X-Rays • Youth • Zoology  ... (more topics)

- 100 -
Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
Ibn Khaldun
Euclid
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Bible
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
Wilhelm Roentgen
Louis Pasteur
Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
Nicolaus Copernicus
Robert Fulton
Pierre Laplace
Humphry Davy
Thomas Edison
Lord Kelvin
Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
Linus Pauling
Immanuel Kant
Martin Fischer
Robert Boyle
Karl Popper
Paul Dirac
Avicenna
James Watson
William Shakespeare
- 50 -
Stephen Hawking
Niels Bohr
Nikola Tesla
Rachel Carson
Max Planck
Henry Adams
Richard Dawkins
Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
Edward Wilson
Johannes Kepler
Gustave Eiffel
Giordano Bruno
JJ Thomson
Thomas Kuhn
Leonardo DaVinci
Archimedes
David Hume
- 30 -
Andreas Vesalius
Rudolf Virchow
Richard Feynman
James Hutton
Alexander Fleming
Emile Durkheim
Benjamin Franklin
Robert Oppenheimer
Robert Hooke
Charles Kettering
- 20 -
Carl Sagan
James Maxwell
Marie Curie
Rene Descartes
Francis Crick
Hippocrates
Michael Faraday
Srinivasa Ramanujan
Francis Bacon
Galileo Galilei
- 10 -
Aristotle
John Watson
Rosalind Franklin
Michio Kaku
Isaac Asimov
Charles Darwin
Sigmund Freud
Albert Einstein
Florence Nightingale
Isaac Newton


by Ian Ellis
who invites your feedback
Thank you for sharing.
Today in Science History
Sign up for Newsletter
with quiz, quotes and more.