US 810430 A
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Description (OCR text may contain errors)
PATENTED JAN. 23, 1906. IE. PPLUGER & E. OHRISTENSBN.
APPLIUATION FILED FEB.11,1*904.
' BUNG HOLE BUSHING.
i .wu f
the bung-hole an permanent .UNITED f sTATEs PATENT OFFIOE.
FRANK FFLUGER AND EMIL cHRIsTENsEN, OF PORTLAND, OREGON.
BYUNG-HOLE BUSHING- Specification of Letters Patent.
Patented Jan. 23, 1906.
- Application filed February 11,1904. Serial No. 193,156.
To @ZZ whom it may concern,.-
Be it known that we,A FRANK PFLUGER and EMIL CHRISTENSEN, cltlzens of the Umted States, residing at Portland, in the county of Multnomah and State of Oregon, have i'n-l vented a new and usefulBung-Hole Bushing, of which the following is a specification.
This invention relates to bunghole\bush ings, and the principal object thereof is to pro-l vide a bung-hole bushing of inexpensive character which may be quickly applied to al bunghole formed in a stave and which when applied will be permanently secured in posi" tion and will formsuch a perfect fit within the bung-hole that any leakage between the bushing and the side of the bung-hole will be completely prevented.
A further object of the invention is to pro-l vide a bung-hole bushing especially adapted* for use in counterbored bung-holes and hav ing provision for the insertion between the; bushing and the wall of the bung-hole of a layer of packing material to assist in preventing leakage between the bushing and the Wall of the bung-hole. l
With the objects above mentioned in view the invention consists in the novel form of bung-hole bushing hereinafter fully described and claimed, and illustrated in a preferred form of embodiment in the accompanying drawings, in whichj Y Figure 1 is a sectional view of the bunghole bushing introduced into a bung-hole, but not permanently secured therein. Fig. 2 is a sectional view throu h the bushing applied to y secured therein by expanding and flanging the lower edge of the bushing. Fig. 3 is a plan view of the bushing before insertion into a bung-hole.
Referring to the drawings, in which corresponding .parts are designated by similar characters of reference, B designates generally the entire bushing, and S designates a `stave having a bung-hole formed therein.
i flared slightly outward at its inner end. r-lhe portion of the body of the bushing adjacent to the liange 1 is considerably thicker than the inner portion of the body and is intended to fit tightly within the bung-hole. The in'- ner portion of the body of the bushing is reduced considerably in external diameter to form a 'space between the bushing and the wall of the bung-hole to receive packing material, as shown at 3. The slipping of the packing material upon the outer surface of the bushing as the bushing is being inserted into the bung-hole is prevented by a shoulder 4, which defines the cut-away portion of the body of the bushing.
In order to prevent the rotation of the bushing during the operation of expanding of the flange, by which the bushing was secured in position in the bung-hole, we preferably provide upon the outer surface of the bushing adjacent to the flange one or :more spurs 5 v their inner ends, as shown at '6, and when the bushing is permanently secured in the bunghole the inner end of the body portion thereof is flanged, as shown in'Fig. 2, the flange 7 formed thereon, conforming closely to the counterbored surface. The inner end of the 'bushing is formed with an' initial flare, as `clearly shown in Fig. 1, whereby the operation of bending the flange '7 will be greatly facilitated.
In connection with the bushing, as above described, the packing material which we l prefer to use is flag or bulrushes, but other fibrous compressible materials maybe employed instead.
In applying the bushing, as above described, to a bung-hole the bushing is first Wrapped arounde with the packing material at the inner "end and is then driven into the bung-hole to the position shown in Fig. 1', the contact of the packing material with the wall of the bung-hole being effective to compress the material between the said wall and the outer surface -of the bushing, as wel] as to force the packing into close contact with the shoulder 4 upon the outer surface of the body 2 of the bushing. The bushing having been introduced into the bung-hole, as shown in Fig. 1, it is then secured therein by being out-A wardly expanded and flanged at its inner `Serial No. 134,612, is pre erred, as it is especially adapted for the rapid expansion and flanging of the bushing in the manner desired.
While the bushing has been shown in a counterbored bung-hole and it is intended that it shall be employed in such bung-holes by preference, it is of course obvious that it may be applied to bung-holes unprovided with counterbores and that when so applied the bushing will give satisfactory results in use.
Having thus described the nature and use .of our invention, what we claim as new, and
desire to secure by Letters Patent, is*
1. The combination with a stave having a counterb'ored bung-hole, of a bushing of ductile metal reduced in external diameter at its inner end and having flanges at both ends, the flange at the inner end conforming to the counterbore of the bun -hole, `and a Wrapping of packing materia about the reduced portion of the bushing and confined between the shoulder formed by said reduced portion and the inner flange. l
2. The combination with a stave having a counterbored bung-hole, of a bushing of ductile metal provided with an external shoulopposing flange.
4. A bung-hole bushing having a bendable flange at one end and having its body portion reduced adjacent to said flange to form a depressed exterior packing-seat bounded by an exterior shoulder opposing the fiange.
5. A bung-hole bushing having a tapered body initially flared at its inner end and reduced in external diameter adjacent to the inner end with the formation of an external shoulder intermediate of the outer and inner FRANK PFLUGER. EMIL CHRISTENSEN.
R. L. STEVENS, E. G. BURKE.`