US126292A - Improvement in automatic fans - Google Patents
Improvement in automatic fans Download PDFInfo
- Publication number
- US126292A US126292A US126292DA US126292A US 126292 A US126292 A US 126292A US 126292D A US126292D A US 126292DA US 126292 A US126292 A US 126292A
- Authority
- US
- United States
- Prior art keywords
- improvement
- fans
- automatic
- automatic fans
- hall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWERÂ PLANTSÂ OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D35/00—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
Definitions
- My invention relates to an improvement on an automatic fan, patented by me September 26, 1871; apd consists in attaching a base instead of the screw-clamp to the lower end of hollow tube I, reference being had to the accompanyin g drawing, and to the letters marked thereon, in which is shown a side elevation of the fan with my improvement attached.
- the purpose of the base is to sustain the machine in an upright position, so that it can be set on any level surface.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
W. DE LANCEY HALL.
Improvement in Automatic Fans. No. 126,292, PatentedApril30,1872.
'Witnesses: lnventor' 144% 744% y; $65M iM MOWWL UNITED STATES PATENT OFFICE.
WILLIS DE LANOEY HALL, OF MEMPHIS, TENNESSEE.
IMPROVEMENT IN AUTOMATlC FANS.
Specification forming part of Letters Patent No. 126,292, dated April 30, 1872.
SPEomIoATIoN.
I, WILLIs DE LANGEY HALL, of the city of Memphis, county of Shelby, and State of Tennessee, have invented certain Improvements in Automatic Fans, of which the following is a specification:
My invention relates to an improvement on an automatic fan, patented by me September 26, 1871; apd consists in attaching a base instead of the screw-clamp to the lower end of hollow tube I, reference being had to the accompanyin g drawing, and to the letters marked thereon, in which is shown a side elevation of the fan with my improvement attached.
The purpose of the base is to sustain the machine in an upright position, so that it can be set on any level surface.
Claim.
Publications (1)
Publication Number | Publication Date |
---|---|
US126292A true US126292A (en) | 1872-04-30 |
Family
ID=2195717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US126292D Expired - Lifetime US126292A (en) | Improvement in automatic fans |
Country Status (1)
Country | Link |
---|---|
US (1) | US126292A (en) |
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0
- US US126292D patent/US126292A/en not_active Expired - Lifetime
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