US1000183A - Electric ceiling-fan. - Google Patents
Electric ceiling-fan. Download PDFInfo
- Publication number
- US1000183A US1000183A US42283008A US1908422830A US1000183A US 1000183 A US1000183 A US 1000183A US 42283008 A US42283008 A US 42283008A US 1908422830 A US1908422830 A US 1908422830A US 1000183 A US1000183 A US 1000183A
- Authority
- US
- United States
- Prior art keywords
- shaft
- fan
- magnet
- electric ceiling
- stationary
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
- H02K7/16—Structural association with mechanical loads, e.g. with hand-held machine tools or fans for operation above the critical speed of vibration of the rotating parts
Definitions
- the present invention relates to improvements in electric ceiling fans, and particularly to fans of the type specified adapted to be actuated by an alternating current, the invention residing primarily in the production of a ceiling fan wherein the blades are attached to a combined casing and armature mounted on a stationary hollow shaft.
- This construction differs materially from the ordinary type of fan in which the casing is stationary, the blades being secured to the projecting lower end of the armature shaft.
- Such arrangement is defective in that a relatively large air-gap exists between the armature and magnet, that a perfect adjustment of the armature and magnet is ordinarily impossible and that the shaft re quires constant lubrication, with the consequent danger of the oil rising and being sprinkled about the room in which the fan is located.
- A designates in a general manner the field magnet, B the vertical shaft to which the latter is secured, and G the combined casing and armature.
- the magnet A which may have either triphase or single phase windings, is completely inclosed by the casing, the latter be ing suitably subdivided, (in three parts according to the present construction), in
- the armature proper being connected to the central part, as shown.
- the element O termed hereinafter the rotor is formed with a pair of collars E, E through which shaft B loosely passes, the lower collar E resting upon a step bearing G with which an oil cup F is provided, said cup being fitted upon the threaded lower end of the shaft.
- the upper collar E has a portion thereof extending within the interior of the rotor and projecting into a second oil-cup F carried by the shaft. Both collars are notched, as indicated by the letter f, the notches on the lower collar preventing the oil within cup F from rising along the outer surface thereof and from being sprinkled outside of said cup from centrifugal force.
- Shaft B which is hollow as well as stationary, provides a passage through which and through an opening communicating therewith, the conducting wires a and b are led to the magnet, the wires, during their passage being connected to the binding posts a and Z).
- these wires are completely protected, and since they are stationary, will thus be maintained for a long period in a state of perfect insulation.
- the magnetic fields are likewise stationary, and for this reason, the current supply is facilitated.
- the employment of a hollow stationary shaft further permits the attachment of either an are light or cluster to the lower end thereof, the conducting wires (Z and e passing through the shaft bore. Illustration of such attachment has, however, been omitted for the reason that itmay be of any conventional type.
- the rotor as above stated, is constructed in sections removably connected together for the purpose of obtaining an accurate adjust-- ment or positioning of the armature and magnet.
- the central section is formed with a series of radial openings in which the inner ends of the fan blades D are fitted.
- An electric ceiling fan comprising in combination, a stationary shaft; a magnet secured thereto; a casing rotatably mounted on said shaft and completely inclosing said magnet; a pair of oil-cups secured to said shaft, one of said cups being arranged em teriorly and the other interiorly of the cas- In testimony whereof I have signed my mg; a pair of collars formed upon said casname to this speclfication 1n the presence mg and pro ecting into sald cups, one cup of two subscribing Witnesses.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
E. MARELLI'.
1,000,183. Patented Aug. 8, 1511.
h N a Q 1' z is m 70Z$ze 58 3f jizflnzar z'rcoze inarazz W ELECTRIC CEILING PAN;
AYPLIUATION FILED MAR. 23, 1908.
PATENT @FFTCE.
ER-COLE MARELLI,
OF MILAN, ITALY.
ELECTRIC CEILING-FAN.
To all whom it may concern;
Be it known that T, EnooLn MARELLI, a subject of the King of Italy, residing at No. 10 Via S. Radegonda, Milan, in the Kingdom of Italy, have invented new and useful Improvements in Electric Ceiling- Fans, of which the following is a specification.
The present invention relates to improvements in electric ceiling fans, and particularly to fans of the type specified adapted to be actuated by an alternating current, the invention residing primarily in the production of a ceiling fan wherein the blades are attached to a combined casing and armature mounted on a stationary hollow shaft. This construction differs materially from the ordinary type of fan in which the casing is stationary, the blades being secured to the projecting lower end of the armature shaft. Such arrangement, however, is defective in that a relatively large air-gap exists between the armature and magnet, that a perfect adjustment of the armature and magnet is ordinarily impossible and that the shaft re quires constant lubrication, with the consequent danger of the oil rising and being sprinkled about the room in which the fan is located. These defects are avoided in the present construction in which the magnet is completely inclosed by the casing, and the electrical connections and the magnetic fields are stationary, and in which a hollow stationary shaft is employed, such shaft enabling either an are light or cluster to be attached to the lower end thereof, the conducting wires passing through its interior or bore.
The figure appearing in the accompanying drawing represents a sectional elevation of the preferred embodiment of the in- Vention.
Reference being had to said drawing, and to the characters marked thereon, A designates in a general manner the field magnet, B the vertical shaft to which the latter is secured, and G the combined casing and armature.
The magnet A, which may have either triphase or single phase windings, is completely inclosed by the casing, the latter be ing suitably subdivided, (in three parts according to the present construction), in
Specification of Letters Patent.
Application filed March 23, 1908.
Patented An 8, 1911.
Serial No. 422,830.
' order to facilitate the mounting of the magnet, the armature proper being connected to the central part, as shown.
The element O, termed hereinafter the rotor is formed with a pair of collars E, E through which shaft B loosely passes, the lower collar E resting upon a step bearing G with which an oil cup F is provided, said cup being fitted upon the threaded lower end of the shaft. The upper collar E has a portion thereof extending within the interior of the rotor and projecting into a second oil-cup F carried by the shaft. Both collars are notched, as indicated by the letter f, the notches on the lower collar preventing the oil within cup F from rising along the outer surface thereof and from being sprinkled outside of said cup from centrifugal force.
Shaft B, which is hollow as well as stationary, provides a passage through which and through an opening communicating therewith, the conducting wires a and b are led to the magnet, the wires, during their passage being connected to the binding posts a and Z). Hence, these wires are completely protected, and since they are stationary, will thus be maintained for a long period in a state of perfect insulation. The magnetic fields are likewise stationary, and for this reason, the current supply is facilitated. The employment of a hollow stationary shaft further permits the attachment of either an are light or cluster to the lower end thereof, the conducting wires (Z and e passing through the shaft bore. Illustration of such attachment has, however, been omitted for the reason that itmay be of any conventional type.
The rotor, as above stated, is constructed in sections removably connected together for the purpose of obtaining an accurate adjust-- ment or positioning of the armature and magnet. The central section is formed with a series of radial openings in which the inner ends of the fan blades D are fitted.
What is claimed is:
An electric ceiling fan comprising in combination, a stationary shaft; a magnet secured thereto; a casing rotatably mounted on said shaft and completely inclosing said magnet; a pair of oil-cups secured to said shaft, one of said cups being arranged em teriorly and the other interiorly of the cas- In testimony whereof I have signed my mg; a pair of collars formed upon said casname to this speclfication 1n the presence mg and pro ecting into sald cups, one cup of two subscribing Witnesses.
being provided with a bearing noon Which ERCOLE MARELLI. 5 the adjacent collar rests; an armature lo- Vitnesses:
cated Within said casing; and a series of B. CARLO SAINOTER,
blades secured to said casing. I l M. SEARSDORFER, J r.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42283008A US1000183A (en) | 1908-03-23 | 1908-03-23 | Electric ceiling-fan. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42283008A US1000183A (en) | 1908-03-23 | 1908-03-23 | Electric ceiling-fan. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1000183A true US1000183A (en) | 1911-08-08 |
Family
ID=3068510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US42283008A Expired - Lifetime US1000183A (en) | 1908-03-23 | 1908-03-23 | Electric ceiling-fan. |
Country Status (1)
Country | Link |
---|---|
US (1) | US1000183A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2473281A (en) * | 1945-03-15 | 1949-06-14 | Eaton Mfg Co | Ventilating and heating apparatus for vehicles |
-
1908
- 1908-03-23 US US42283008A patent/US1000183A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2473281A (en) * | 1945-03-15 | 1949-06-14 | Eaton Mfg Co | Ventilating and heating apparatus for vehicles |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1000183A (en) | Electric ceiling-fan. | |
US768593A (en) | Turbine-generator. | |
DE102013226543A1 (en) | Electric machine | |
US707842A (en) | Electric fan. | |
US636087A (en) | Electric motor for fans. | |
US595571A (en) | Rotary fan | |
US765936A (en) | Shaft-bearing. | |
US726259A (en) | Pump. | |
US1278865A (en) | Dynamo-electric machine. | |
US1302060A (en) | Turbine-driven electric-generator set. | |
US599918A (en) | Motor-casing | |
US994810A (en) | Electrical apparatus. | |
US241242A (en) | Armature for dynamo-electric machines | |
US751191A (en) | Electric motor | |
US465361A (en) | diehl | |
US727686A (en) | Means for cooling dynamo-electric machines. | |
US1777852A (en) | Motor-driven pump | |
US1507462A (en) | Ventilator | |
US495547A (en) | Combined electric motor and driven machine | |
US633478A (en) | Combined electric motor and pump-head. | |
US849706A (en) | Cooling dynamo-electric machines. | |
US880428A (en) | Self-oiling bearing. | |
US925272A (en) | Dynamo-electric machine. | |
US908686A (en) | Dynamo-electric machine of the inclosed type. | |
US1135656A (en) | Dynamo-electric machine. |