US1445617A - Electric-motor support - Google Patents

Description

Fdo., 33, E923,

JIEHU ELECTRIC MOTOR SUPPORT Filedmar.

atente heb. I, llfl WALTER. I. IIEHU, OI CHICAGO, ILLINOIS., ASSIGNOR, BY MESNE ASSIGNMENTS, TO CHICGO PUMP COIIIINNY, OF CHICAGO, ILLINOIS, A CORPORATION OJE ILLINOIS.

ELECTRIC-MOTOR SUPPORT.

Application filed March 7, 1922. Serial N0. 541,349.

To all 'wim/)tit may con-cern Be it known that I. WALTER I. Julio, a subject of the Kingdom of Great Britain, and a resident of Chicago` Cook County. and State of Illinois, have invented certain new and useful Improvements in Electric-Motor Supports, of which the following is declared to be a full,` clear, and exact description.

This invention relates to electric motor supports. and its principal object is to provide silencing means whereby the noise usually occasioned by electric motors may be reduced to a minimum. alinother object is to provide a resilient cushion between the electric motor and a metal base plate, whereby vibration in the motor may be absorbed and not transmitted to the base plate. With these objects in view, this invention consists in the several novel features hereinafter fully set forth and claimed.

The invention is clearly illustrated in the accompanying drawing, in which:

Fig. 1 is a side elevation of an electric motor and pump, illustrating one form of the invent-ion in connection with the motor; IF ig. 2 is a plan of the motor base and the support; Fig. 3 is a detail vertical section taken on line 3-3 of Fig. 2; and -F ig. 4 is a plan of a socket member forming part of the support.

Referring to said drawing, which illustrates a simple embodiment of the present invention, the reference character 5 designates an electric motor of ordinary form, 6 its motor shaft and 7 a flexible shaft coupling by which it is coupled to the shaftl 8 of a pump 9 or other motor driven apparatus. The motor and pump are mounted on a base plate 10, preferably in the form of -a channelI iron, the pump being ,rigidly fastened thereto by bolts or otherwise, and the electric motor being loosely supported thereon, as will be presently described.

'llhe motor base 11 is rigidly secured to the motor body by bolts or otherwise, and it is here shown as formed with laterally extending lugs 12, to give it a wider spread or base. Projecting down from the four corner portions of the motor base are pins 13 which extend part way into resilient blocks of material 14, which may comprise cylindrical rubber blocks having vertical holes 15 for the reception of the pins 13.

The base plate 10 is formed with holes at the places where the resilient blocks are to stand, and in said holes are placed socket members 16 that receive the resilient blocks 14. rIhe socket members are preferably formed of sheet metal and are of thimblelike formation. At the upper edge of each socket member is an annular flange 17 which rests upon the top of the base plate 10, and from said flange projects a slightly tape-ring annular wall 18, which terminates in a bottom wall 19 in which is an aperture for theescape of oil or water that may find its way into the socket member. l

The rubber blocks 14C stand on the bottom walls of the socket members, and may sway back and forth in the socket members between the slightly inclined walls thereof. Moreover, on account of the flexible shaft coupling between the motor shaft and driven shaft, no such precision and accuracy is required in locating the position of the socket members aswould be essential in locating a motor unprovided with a flexible shaft coupling. Consequently, when the holes for the socket members are made in the base plate at approximately the right places, the motor provided with the cushion blocks may be placed on the socket members, and its shaft coupled up with the driven shaft, without lining up the shafts as is customary. It has been found from actual experience that the 4confined cushion blocks practically silence the noise of the motor, and, because of the resilient support and flexible connections, the wear and tear on the motor is minimized, and the unpleasant noise is practically eliminated. More or less variation of the exact de tails of construction is possible without departing from the spirit of this invention; I desire, therefore, not to limit myself to the exact form o-f the construction shown and described, but intend in the following claims to point out all of the invention disclosed herein.

'I claim as new and desire to secure b Letters Patent:

1. Electric motor mounting comprising a motor base, resilient blocks secured thereto on its lower side and projecting down therefrom, fianged socket members ,for the reception of said resilient blocks, the side walls of said socket members inclining upwardly from the bottom thereof, and a base plate formed with holes in which said socket members are placed with their flanges resting on said base plate. n

2. Electric motor mounting, comprising a motor base, pins secured to t-he bottom of said base at the four corners thereof. cylindrical rubber blocks secured upon said pins, flanged thimblelike socket members in which said rubber blocks are located, the side Walls of said socket members inclining upwardly from the bot-toms thereof, and a base plate formed with holes located at places to correspond with the location of the socket members, the latter being let into said holes with their flanges resting on the top of the base plate.

3. Electric motor mounting, comprising a bers the latter being let into said holes with their llanges resting on the top of the buse plate,

WALTER I. JEHU.

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