US1946527A

US1946527A - Packing

Info

Publication number: US1946527A
Application number: US493201A
Authority: US
Inventors: Fletcher H Field
Original assignee: RHODES METALLIC PACKING COMPAN
Current assignee: RHODES METALLIC PACKING Co; RHODES METALLIC PACKING COMPAN
Priority date: 1930-11-03
Filing date: 1930-11-03
Publication date: 1934-02-13
Anticipated expiration: 1951-02-13

Description

F. H. FIELD Feb. 13, 1934,

PACKING Filed Nov. 3, 1930 Patented Fell). 13, 1934 PATE'r PACKING 1. Fletcher H. Field, Detroit, Mich., assignor to Rhodes Metallic Packing Company, Detroit, Mich., a corporation of Michigan Application November 3, 1930. Serial No. 493,201

4 Claims. (Cl. 154-455) This invention relates to packing and more particularly to improvement in core constructions for metallic shaft and rod packings and the like.

The invention has as one o its primary objects to provide a metallic core which is capable of being flexed longitudinally and compressed radially.

Another object of the invention is to provide a substantially tubular metallic core inside of which a lubricating substance may be placed if desired.

The several objects, advantages and novel details of construction of several forms of my invention will be made more apparent as this description proceeds, especially when considered in connection with the accompanying drawing, wherein Figure l is a sectional elevational view of a packing having a core constructed in accordance with my invention;

Figure 2 is a transverse sectional View taken substantially on the plane indicated by line 2 2 in Figure 1;

Figure 3 is a sectional elevational View of a packing showing a modified iorm of core;

Figure 4 is a transverse sectional view taken substantially on the plane indicated by line 4 4 in Figure 3;

Figure 5 is a sectional elevational View of a length of packing showing still another modified form of core construction;

Figure 6 is a transverse sectional view taken substantially on the plane indicated by line 6 6 .35i in Figure 5;

Figure 7 is a sectional elevational view of a length of packing showing another modified form of core construction, and

Figure 8 is a transverse sectional View taken substantially on the plane indicated by line 8 8 in Figure 7.

In Figure l there is illustrated a packing l0 having a core 1l extending longitudinally therethrough. The body or the packing l0 may have an outer protecting cover of exible material if desired. The body 10 may be made of any preferred or desired material and in any preferred or desired manner although advantageous results are obtained from a packing constructed of metallic strips longitudinally interfolded and compressed in interlocking position. Such a packing has inherent resiliency and if the metallic strips are coated with oil or graphite or both,.

or some other lubricant, the packing becomes substantiauy se1r1ubricatmg- In accordance with the present invention, I propose forming the core 11 in the form of a hollow tubular member produced by braiding wire or ribbon in the manner clearly illustrated in Figures l and 2. This produces a core which is longitudinally flexible and radially compressible, and the hollow interior of the core may if desired be supplied with graphite or oil or any other highly viscous or semi-lubricant substance which will assist in making the packing self-lubricating. 35 The wire or ribbon from which the tubular core is braided may be of magnesium, magnesium alloy, an alloy of copper and lead or of some other nonabrasive alloy having high heat resisting properties.

In Figures 3 and 4 another form of construction is illustrated in which the core 12 is also in the form of a hollow tubular member constructed of a helically Wound ribbon of metal with the adjacent edges of the ribbon interlocked in the form of the conventional electric wire conduit. As in the previously disclosed construction, this core member may be made of any of the materials therein suggested, or of any suitable material.

In Figures 5 and 6 the body 10 is shown as provided with a core 13 in the form of a metallic bellows-like member or a tubular member provided with successively arranged circumferential flutes. As in the previously described construction, this core member may be made of magnesium, magnesium alloy, an alloy of copper and lead or any other non-abrasive alloy capable of withstanding high temperature. The thickness of the wall of the core member will be such that the core member will be capable of being longitudinally flexed and slightly radially compressed.

In Figures 7 and 8 still another form of construction is illustrated in which the core comprises a plurality of metal Wires lll which extend longitudinally of the core member and are arrangedv in a substantially cylindrical group. These Wires may be embedded in graphite or oil, or any other highly viscous or semi-solid lubricant. The wires may be of any of the alloys or material heretofore mentioned and will be spaced 100 apart suiciently to permit of radial compression so that the resiliency of the packing will not be impaired.

Having thus described the several forms of my invention, what I claim is,-

l. A flexible metallic packing comprising a body and a tubular braided core extending longitudinally therethrough and constituting a lubricant reservoir.

2. A exble metallic packing comprising a 119 metallic strips longitudinally interfolded and compressed in interlocking engagement with each other, and a hollow core disposed substantially centrally of said body and constituting a lubricant reservoir, said core being formed of metallic strips braided together.

FLETCHER H. FIELD.