Патент USA US2047904код для вставки
July 14, 1936. A. c. HOLLATZ 2,047,904 FLEXIBLE CONNECT I 0N Filed Nov. 21, 1934 INVENTOR. ?RTf/l/R C. HOLLHTZ BY A TTORNE Y. Patented July 14, 1936 ’ 2,047,904 ' UNITED STATES PATENT OFFICE ,1 _ _ 2,041,904 FLEXIBLE common Arthur G. Hollatz, Bloomington, Ill., assignor to Williams Oil-O-Matic Heating Corporation, Bloomington, llL, a corporation of Illinois Application November 21, 1934, Serial No. ‘154,069 6 Claims. (Cl. 285-90) This invention relates to improvements in ?ex ible connections and more particularly to a ?ex ible connection which may also be employed as a resilient support. 6 ‘ It is an object of this invention to provide a device of this character which is simple and du _'_ rable, and which may be readily used either as a supporting medium for one of the parts to which the connection is'applied, or may be employed l0 merely to ?exibly connect and form a means of the provision of a combined ?exible connection between the bottom of the crank case of the compressor l and the lubricant sump 5, and a resilient support for the compressor. In carrying out this invention, it is preferable 5 to provide the bottom of the crank case of the compressor I with a central removable closure 6, as illustrated in Figure 2, although the crank case may be formed integral so that the bottom is ofvthe same general con?guration as the 010- 10 sure plate 6, with the lowest portion thereof pro . With these and other objects in view, reference ' vided with a drain or opening 1. It is also pref communication between two conduits. > is made to the accompanying sheet of drawing which illustrates a preferred embodiment of this 15 invention with the understanding that detail erable to provide the upper portion of the lubri cant sump 5 with an upstanding exteriorly, ?anged member 8 having a passageway 9 there- 15 changes may be made without departing from through preferably similar to the aperture 1 of the scope thereof. the compressor crank case and concentric there-. In the drawing: with adapted to be placed in communication with Figure 1 is a view in side elevation with parts 20 broken away illustrating one embodiment of this invention. the interior of the crank case of the compressor I by the hereinafter described ?exible connection. 20 The improved ?exible connection includes two Figure 2 is a fragmentary enlarged detail view partly in vertical central section and partly in elevation of the ?exible connection and support 25 illustrated in Figure 1. The embodiment of this invention illustrated rated to form concentric apertures l2 and I3 of . the same diameter as the apertures l and 9 to receive the opposite ends of a cylindrical metallic 25 in Figure 1 includes a compressor I having a di rect drive 2 to an electric motor 3 which is mount ed upon a base or support 4. The particular com 30 pressor l is adapted for compressing the refrig erant gas employed in a compression type of re frigerating apparatus including a forced feed lubricating system to lubricate the moving parts of the compressor in which the lubricant collect 35 ing at the bottom of the crank casing of the com pressor l drains therefrom into a lubricant sump 5 from which it is returned to the system by a lubricant pump. Such a lubricant sump and lu bricating system are employed upon a commer 40 cial refrigerating apparatus, and as the subject matter of this invention relates to only the con nection between the compressor crank case and the lubricant sump, it is thought that theabove general description is su?icient to the under 45 standing of this invention. . , Ina device of the character above described, it iscustomary to mount the electric motor 3 upon ' some means interposed between it and the base 4 for absorbing the vibration when the motor is 50 operated, and as the compressor is connected di ? rectly to the driving shaft of the motor, as by the connection 2, it is also necessary to provide a resilient support between the compressor and the supporting base 4 to absorb the vibrations of 55 the compressor. This invention contemplates spaced-apart plates l0 and II centrally perfo expansible and contractible bellows member l4 whose ends [4a are secured to said plates as by spinning the metal of the exterior terminations over the exterior edges of the apertures I2 and I3 of the plates l0 and H, or by any other desired 30 means. It is preferable to cast caoutchouc or oth er moldable resilient composition in cylindrical form concentric with and about the exterior of the metallic bellows l4 between'the plates I0 and II to form a column l5 of resilient material 35 between the two plates, which is preferably rein forced by metallic cylindrical strap "5 of less width than the distance between the plates 10 and II to maintain the cylindrical formation of the resilient material. As shown in Figure 2, 40 the plate In is secured to the under side of the closure 6 by hexagon head cap screws H with the aperture 1 registering with the bellows [4. The base 4 is provided with a circular aperture l8 adapted to receive and be spaced apart from 45 the ?ange 19 of the member 8 carried by and communicating with the oil sump 5. The plate II is bolted to the ?ange IS with the ‘aperture 9 registering with the bellows l4. The plate Ii 50 is of greater diameter than the aperture l8 and rests upon the upper side of the base 4 and is preferably secured thereto by cap screws 20 while the ?ange I9 is secured to the plate II by bolts 2|. In the commercial device, it is customary to 55 2 ~ . , 2,047,904 support the oil sump 5 by straps 22 secured to and depending from the under side of the base 4. From the above description, it is readily seen that the bellows I4 forms a means of communi cation between the interior of the crank case of the compressor l and the lubricant sump 5 by the bellows member I 4 forming a ?exible connec tion between the two. The surrounding column ii of the resilient material being interposed between '10 the bottomof the crank case of the compressor I and the upper side of the base 4 not only strengthens the ?exible connection formed by the bellows H, but also forms a shock absorber adapted to receive and absorb the vibration 15 caused by the operation of the compressor. It is tov be noted that'the embedding‘ of the bellows member l4 entirely within the resilient material not only allows the bellows member to compress and expand, as well as to ?ex, but also 20 provides a reinforcing means for the exterior of the ?exible portions of the bellows, whereby a ?exible connection is provided which is adapted to withstand high internal pressures. Such a connection is adapted to form ?exible connec-' 25 tions in high pressure pipe lines by securing the plates l0 and II of the construction illustrated in Figure 2 to the ?anges usually provided on the ends of the pipes. What I claim is: 30 -' 1. The combination with a base having an ap erture, a hollow body rigidly supported upon the under side thereof, and a hollow vibrating body positioned thereabove, of a combined ?exible connection between the interiors of said bodies 85 and a resilient support for the vibrating body, including a cylindrical metallic bellows secured in communicating relation to the gibrating body and secured to the rigid body and base sur rounded by a reinforcing body of resilient mate rial interposed between the vibrating body and base adapted to allow the bellows to expand and contract and also absorb the vibrations of the supported body. 2. The structure of claim 1, wherein'the ends of the bellows extend through and are secured to attaching plates, one secured to the vibrating bodyand the other to the base and rigid body. 3. The structure of claim 1, wherein the resil ient material is in the form‘ of a cylindrical col— umn concentric with the bellows. 4. The structure of claim 1, wherein the ends of the bellows extend ‘through and are secured to attaching plates, one secured to the vibrating 15 body and ‘the other to the base and rigid body, and wherein the body of resilient material is in terposed between the said‘ attaching plates. 5. The structure of claim 1, wherein the ends of the bellows extend through and are secured to 20 attaching plates, one secured to the vibrating body and the other to the base and rigid body, and wherein the resilient material is in the‘form of a cylindrical column concentric with the bel lows, with the respective ends engaging the ad 25 jacent surfaces of the respective attaching plates. 6. The structure of claim 1, wherein the ends of the bellows extend through and are secured to the attaching plates with one of said plates se cured to the vibrating body and the other to the 30 base and rigid body, and wherein the resilient material is in the form of a cylindrical column concentric with the bellows, with the respective ends thereof engaging the adjacent surfaces of the respective attaching plates, and its exterior 35 surrounded by a restraining strap of less width than the distance between said plates. ‘ ARTHUR 0. HOLLATZ.