US1597871A

US1597871A - Fan-motor mounting

Info

Publication number: US1597871A
Application number: US731943A
Authority: US
Inventors: Arthur B Reynders
Original assignee: Westinghouse Electric and Manufacturing Co
Current assignee: CBS Corp
Priority date: 1924-08-14
Filing date: 1924-08-14
Publication date: 1926-08-31
Anticipated expiration: 1943-08-31

Description

Aug. 31, 1926. 1,597,871

B. REYNDERS FAN MOTOR MOUNTING Filed August 14, 1924 WITNESSES: INVENTOR I flrzfiunBReyrzders.

BY W ATTORNEY Patented Aug. 31, 1926. a I

anrnun n. nnrnnnns, or srnmermrn MASSACHUSETTS, ASSIGNOR TO WESTING- HOUSE ELECTRIC & MANUFACTURING COMPANY, A CORPORATION, OF PENNSYL FANJIOTOB MOUNTING.

Applloation filed August 14, 1924. Serial at. 731,943.

My invention relates generally to. improvements in fans and more particularly o fan-motor mountings. The object of the invention, generally stated, is the rovision of a fan-motor mounting that shall be .simple and eificient in operation and readily manufactured.

' A more specific object of the invention is the 1provision of a fan-motor mounting whic will ermit the setting of the fan motor in diiibrent positions on the base to adapt the fan for attachment to vertical, horizontal and oblique supports. It is also an object of the invention to provide a fan-motor mounting, parts of which may be forced to conform in shape to other parts-to give a proper fitting of all the parts.

Other objects of the invention will, in

and economically part, be-obvious and, in part, appear here-- inafter.

The invention, accordingly, is disclosed in the embodiment thereof shown'in the accompanying drawing and comprises the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the [claims For a fuller understanding of the objects of the-invention, reference may be had to the following detailed description, taken in connection with the accompanying drawing in which:

Figure 1 is a perspective view of a fan showing an embodiment-of the fan-motor mounting in accordance with this invention;

Fi 2 isa side elevation of the fan showing t e fan-motor mounting, parts being broken away to showits construction;

Fig. 3 is an end view of a band forming a art of the motor mounting; and

ig. 4 is a side elevational view with parts I broken away to show the mountingapplied to 'a fan motor casin Regerring now to the drawing, 10 desig- .nates a fan motor provided with a shaft 11 that extends beyond the casing, presentin an end for the reception of the fan whee or blades 12. As shown in Fig. 2, the fan provided with a sectional blades are fixed on the extended end of the ably less than 90.

shaft 11 by a set screw 24 and are enclosed by'a fan guard 13, carried by the motor casmg. In mounting the fan guard 13, a plurality of radially extending 'arms 14 are attached to the motor casin and have slots formed in their outer ends to receive the base member of the fan guard.

In order that the motor may be mounted on supports extending in different planes, a basediaj having a vertical shank 25, is pro-, vide As will be observed, a flange 16 is formed on the base and has a plurality. of openings drilled therein so that. the base may be attached to such supports as a vertical wall or'a ceiling.

Since the base 15 may be mounted on a wall or suspended from a ceiling, the motor is attached thereto in such a manner that it may be set in different positions relative to the base so as to deliver a current of air 7 in the desired direction. Accordingly, an open band 18, having its endsturned outwardly, forming dependin lugs'19, is provided. As will be observe the lugs 19 extend substantially parallel to one another and are spaced apart to permit'the projection of the up er end of shank 25 between them. Forms .on opposite sides of the shank are faces 20, great enough in area to receive the lugs 19.

In order to secure the lugs in position on the shank, openings, which may be set in register with one another, are drilled in these members, and a bolt is projected through them. Mounted on the bolt 21 is a wing nut 26 which may be adjusted to clamp together the lugs and shank to establish frictional engagement and to fix them in any predetermined relative positions.

As shown in Fig. 2, the faces 20 are de-- fined on two sides by shoulders 22, which serve to restrict the rotation of the band 18 about the bolt 21. The drawing shows that these shoulders permit the backward movement of the motor through an angle of sub stantially from the vertical, while the forward movement permitted is consider- By thus providing for adjustment of the motor on the base, the fan is adapted for mounting on a desk, a wall, or a ceiling.

With a view to holding the motor against rotation during operation, it is necessary to ing provide for the engagement of the motor casby the band 18. In order to provide for such engagement, an annular bed 17 is formed on the casing for the reception of the band 18. Accordingly, when the band is placed in position, it engages frictionally the bed, and the motor is held against rotation. It will be readily understood that the frictional grip of the band may be varied to meet conditions by altering the gripping area, the coefiicient of friction of the contacting surfaces or the pressure forcing the surfaces into engagement. Since the band is attached to the base'by means of a bolt and a wing nut which serve to draw together the lugs, the gripping pressure of the band is effected by the adjustment of the nut.

It is preferable to make the band from a resilient metal plate and, when such a resilient band is used, it permits the drawing of the band to the exact shape of the annular bed, so that possible inaccuracies in construction do not affect the frictional engagement. Further, the band, or account of its resilience, may be continually urged toward the bed by spring pressure when the wing nut is operated to force the lugs 19 together.

Since there is a possibility of the band moving axially on the motor casing, due to the forces exerted during the operation of the motor, a plurality of projections or lugs 23 are formed integrally with the casing and disposed in circumferential rows along each side of the bed 17.

In mounting a motor of this type, when it is required to adapt it for suspension fromv a ceiling, the wing nut 21 is released and the band rotated about the bolt to the position shown in Fig. 1, when the wing nut is tightened, establishing the frictional grip of the band on the motor casing, and of the lugs 19 on the base 15. When the fan motor is set as shown in Fig. 1, and mounted on a ceiling, the fan blades are positioned to deliver a current of air downward. The setting of the motor as described above also adapts the fan for attachment to a vertical support.

In some cases, it may be desirable to obtain a more positive engagement between the band and bed or the lugs 19 and faces 20. Such engagement may be accomplished by theserration of the contacting faces. When such a practice is adopted, the tightening of the wing nut 26 draws the opposite serrated faces firmly into engagement with each other.

Sometimes, in order to meet certain commercial and manufacturing conditions, the fan motors may be provided with pressedsteel casings. When such practice is adopted, the assemblage of the casing is facilitated by making it in two sections. each of which is shaped to enclose an end of the motor.

women It will be readily understood that, when such construction is adopted,'the inner edges of the casing sections may be so shaped that,

when they abut, they form the bed 17. Then, since the bed is enclosed by the band 18, the joint in the casing is covered, giving the structure a finished appearance.

It is also pointed out that the date us-ally stamped on name plates which are attached to motor casings may be marked ontheband-18.

I would state, in conclusion, that, while the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to the exact details hereinillustrated, since modifications of the same may be considerably varied without departing from the spirit of the invention, as defined in the appended claims.

Having described my invention, what- I desire to claim as new and secure by Letters Patent is: I

1. A fan-motor mountin comprising, in combination, a band shape to encircle and grip the motor, a support ada ted to receive the band, and means for attac ing the band to the sup ort and to effect the gripping of the motor y the band, said attaching means being adjustable topermit the setting of the grotor in difi'erent positions realtive to the ass.

2. In a fan-motor mounting, in combination, a band adapted to grip the motor, a

friction face formed on said motor to receive the band, a base to carry the band, and means adapted to attach the band to the base, said means being ada ted to effect the grippling of the motor by t e band.

3. n a fan-motor mounting, in combination, an open band adapted to grip the motor,an annular bed formed on the motor to receive the band, a base to support the band, and means for attaching the band to the base, said means being adapted to contract the band to cause it to grip the motor.

4. In a fan-motor mounting, in combination, an open band adapted to gripl the motor, an annular; bed formed on e motor to receive the band, a base to support the band, and means to attach the band to the base, said means being adapted to develop a spring pressure to urge the hand against the bed.

5. In a fan-motor mounting, in combination, an open band adapted to grip the motor, an annular bed formed on the motor to receive the band, a base to carry said band, lugs formed on the ends of the band to be seated on the base, and means operable to attach said lugs to the base in different positions.

6. In a fan-motor mounting, in combination, an open band adapted to grip the motor,

formed on the ends of the band to be seated on the base, and means operable to attach said lugs to the base in different positions, said base being provided with friction faces to receive the lugs.

7. In a fan-motor mounting, in combination, an open band adapted to grip the motor, an annular bed formed on the motor to receive the band, a base to carry said band, lugs formed on the ends of the band to be seated-on the base, means operable .to attach said lugs to the base in different positions, said base bein provided with friction faces to receive the ugs, and shoulders formed on the base to limit the movement of the lugs.

8. In a fan-motor mounting, in combination, an open band ada ted'to encircle the motor, an annular friction face formed on the motor to receive the band, a base rovided with a shank to carry the band, ugs

depending from the ends of the band to be seated on opposite sides of the shank, said shank being rovided wlthfrictlon faces to receive the ugs, and means to draw the lugs into engagement with said faces to fix the band in different positions relative to the'base and to effect the gripping of the motor by the band.

9. In a fan-motor mounting, in combination, an open band adapted to encircle the motor, an annular .frict onface formed on the motor to receive the band, a base rovided with a shank to carry the band, lh 5 depending from the ends of the .band to fie seated on opposite sides of the shank, said shank being rovided with friction faces to receive the n s, means to draw the lugs into engagement with said faces to fix the band in different positions relative to the base and to eflect the gripping of the motor by the band, and circumferential rows of projections formed on the motor adjacent said friction face to retain the band in position.

In testimony whereof, I have hereunto subscribed my name this fourth day of August, 1924.

ARTHUR B. REYNDERS.