US466783A - Power-fan - Google Patents

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US466783A
US466783A US466783DA US466783A US 466783 A US466783 A US 466783A US 466783D A US466783D A US 466783DA US 466783 A US466783 A US 466783A
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fans
fan
power
shaft
green
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US case filed in New Jersey District Court litigation Critical https://portal.unifiedpatents.com/litigation/New%20Jersey%20District%20Court/case/2%3A12-cv-04582 Source: District Court Jurisdiction: New Jersey District Court "Unified Patents Litigation Data" by Unified Patents is licensed under a Creative Commons Attribution 4.0 International License.
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
    • B64C11/48—Units of two or more coaxial propellers

Definitions

  • My invention relates to a power-fan designed to create a current of air or to supply air under moderate pressure where large quantities are required. It consists in certain improvements fully described and claimed below, by which greater efficiency is obtained and also the manufacture of such fans rendered simple and easy.
  • A is an encircling cylinder ierving to confine the air within reach of the ans.
  • B is a shaft mounted in suitable bearings in said cylinder and provided with means for rotating it.
  • fans C and O are collars upon the shaft, made rigid therewith by means of set-screws c c, which collars serve as hubs upon which fans D D are mounted and adjusted to the proper angle.
  • the fans D are arranged midway between the fans 1) and cut into the columns of air coming from said fans. It is possible to thus arrange thefans by the use of a single hub; but it is much preferable to have separate hubs, as shown, and to adjust the two wheels after they are made. This enables the fans to be adapted to various uses and saves much care and painstaking'in the manufacture of the wheels.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

(No Model.)
B. D. GREEN. POWER FAN.
No. 466,783. Patented Jan. 12, 1892.
wa es.- Mea an UNITED STATES PATENT OFFICE.
EDWARD D. GREEN, OF CHICAGO, ILLINOIS.
POWER-FAN.
SPECIFICATION forming part of Letters Patent No. 466,783, dated January 12,1892.
Application filed February 27, 1891- Serial No. 383,043. (No model.)
To aZZ whom it may concern.-
Be it known that I, EDWARD D. GREEN, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Power-Fans, of which the following is a specification.
My invention relates to a power-fan designed to create a current of air or to supply air under moderate pressure where large quantities are required. It consists in certain improvements fully described and claimed below, by which greater efficiency is obtained and also the manufacture of such fans rendered simple and easy.
While my improvements are made with especial reference to fans, they may also be utilized in propellers or wind or Water motors by removing the encircling cylinder.
My invention is illustrated by means of two figures upon the opposite page, in which Figure 1 is an end View of my improved fan in its preferred form, and Fig. 2 is an axial section of the same.
In the figures, A is an encircling cylinder ierving to confine the air within reach of the ans.
B is a shaft mounted in suitable bearings in said cylinder and provided with means for rotating it.
C and O are collars upon the shaft, made rigid therewith by means of set-screws c c, which collars serve as hubs upon which fans D D are mounted and adjusted to the proper angle. The fans D are arranged midway between the fans 1) and cut into the columns of air coming from said fans. It is possible to thus arrange thefans by the use of a single hub; but it is much preferable to have separate hubs, as shown, and to adjust the two wheels after they are made. This enables the fans to be adapted to various uses and saves much care and painstaking'in the manufacture of the wheels.
I claim as new and desire to secure by Letters Patent-- The combination, with a shaft, of two fanwheels, each having a series of fans arranged in planes oblique to the axis of the shaft and adapted to drive the air in the same direction, said fan-wheels being adj ustably mounted upon the shaft, whereby the relative positions of the fans on one wheel with respect to those on the other may be varied as desired, substantially as described.
EDWARD D. GREEN. Witnesses:
GEO. A. J ACKSON, H. BITNERJ
US466783D Power-fan Expired - Lifetime US466783A (en)

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