US736647A - Bushing-expander. - Google Patents

Description

PATENTED AUG. 18, 1903.

G. STAIGER. BUSHING EXPANDER.

APPLIUATION FILED MAB. 27, 190s.

NO MODEL.

Etf/0. 2.

witnesses.-

' obviate this difficulty numerous styles of bush- GODFREY STAIGER,

Patented August 18, 1903.

PATENT Frlci.

OF TOLEDO, OHIO.

BUSHIN'G-EXPANDERI SPECIFICATION forming part of Letters Patent No. 736,647, dated August 18, 1903.

Application filed March Z7, 1903.

To all whom t may concern:

Be it known that LGODFREY STAIGER, a citizen of the United States, residing atToledo, in the county of Lucas and State of Ohio, have invented acertain new and useful Bushing-Expander; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates especially to a machine for expanding the metal bushings commonly used in the bung-holes of barrels, kegs, or other closed vessels of the class required to be perfectly air-tight to prevent the leakage or fermentation of the contents thereof.

It -is well known that in the filling of barrels, kegs, and the like with beer, vinegar, or other liquids great difficulty has been experienced in making the bung-holes of such vessels perfectly air-tight after the bungs have been inserted therein. In the endeavor to ings--both single and double-have been devised, all of which are either worthless orare so expensive of manufacture as to depreciate their utility.

The object of my invention is to provide a machine that is cheap of construction and simple of operation whereby theV single metal bushings commonly used in the bung-holes of barrels, kegs, dac., may be expanded after they have been driven or screwed therein, and thus make an absolutely air-tight vessel.

XVhile the essential features of my invention are necessarily susceptible of modifica,- tion, the preferred embodiment thereof is illustrated in the accompanying drawings, in which Figure l is a vertical longitudinal partly central sectional view of my invention, showing the position of the swaging-block when being inserted in a bung-hole. Fig. 2 is a vertical longitudinal central sectional view showing a portion of the handle and the position of the binding-nut and swaging-block during the swaging operation. Fig. 3 is a vertical central. sectional view of a bushing Serial No. 1491810. (No model.)

as it appears before it is expanded. Fig. 4L is a similar view of a bushing, showing the same expanded and a bung driven therein; and Fig. 5 is a vertical longitudinal view of a portion of the mandrel of my invention, showing the swaging-block thereof within the longitudinal slot provided for its reception.

Referring to the drawings, a represents the mandrel of my invention, which is preferably made circular in form and slightly smaller in diameter than the opening in the bushing l), which it is desired to expand. The upper portion of the mandrel a is squared, as shown at a, to adapt it to receive and be turned by the wrench or handle c. The screw-threads (l are provided on the mandrel d to receive the internally-screwthreaded binding-nut c, which has the annular flange or shoulder c provided on its under side to seat within the upper flanged portion of the bushing b, as shown in Fig. 2, and thus hold the mandrel concentric With the bushing b and prevent the threads d from coming in Contact with the inner periphery thereof.

A vertical longitudinal slot f, extending diametrically through the mandrel a, is provid'ed near its lower portion to receive and house the swaging -bloek g, which is loosely supported on the pin h and adapted to swing in said slot f. The vertical edges of the swaging-block g when in its normal position, as shown in Fig. 2, are tapered so that the lower portion of said sivaging-block extends a sufficient distance beyond the edges of the mandrel on each side to adapt it to have a wedge-like engagement with the lower inner edge of the bushing b, thus causing said edge to be forced outwardly when said swaging block is held in close engagement with said bushing and the mandrel is turned. In order to provide means for tripping or turning the swaging-block g upon its supporting-pivot 7L to the position shown in Fig. l, and thus enable the mandrel to be inserted or withdrawn from the bung-hole of the vessel, I form the horizontally-disposed longitudinal groove t' on the upper edge of said swaging-block, near one end of which is pivoted the tripping or releasing rod 7c, which rod extends to a point above the upper end of the said man-5 drel through the obliquely-disposed vertical IOO bore or channel Z. The swagingblock g is normally retained in the position shown in Fig. 2 by means of the expansion-spring fm, which rests within the enlarged upper portion of the bore l and bears against the cap or thumb-piece n, secured to the top of the rod 7c. I do not confine myself to the use of the swaging-block g for expanding the bushing b, as I am aware that other means employing either a single or double swagingblock might be used equally as well, but I prefer the form shown as being the simplest and cheapest of construction.

While I have shown an ordinary handle c for turning the mandrel a, I preferably use a right-and-left ratchet-wrench, as I find that the turning of the mandrel ais thereby made easier.

In the operation of my machine the lower end of the mandrel a is inserted in the bunghole of the vessel, the swaging-block being rst tripped to the position shown in Fig. l to enable it to be passed to the interior of the vessel, where it is released and returns to its normal position, as shown in Fig. 2. The nut c is then turned down tightly by hand against the annular-flanged portion or rim of the bushing b and the mandrel givenA several turns within the nut c, which remains stationary in its seat, thereby causing the swaging-block to gradually rise as it turns with the mandrel. The lower inner edge of the bushing is thus expanded las the swaging-block is turned therein, and any leakage around the same is prevented.

It will be apparent by reference to Fig. 4L that after a bung o has been driven into a bushing expanded by my machine the liquid within the vessel will cause said bung to swell and tightly engage the expanded portion of the bushing, and thus prevent itsbeing blown out.

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

1. A bushing-expander comprising a turnable mandrel adapted to be inserted in abushing, an elongated slot extended through and provided longitudinally of said mandrel, a swaging-block pivotally secured within said slot, spring-pressed means engaging with and adapted to trip said block, and means for causing said block to be drawn into engagement with and expand said bushing when said mandrel is turned, substantially as described.

2. A bushing-expander comprising a mandrel, a block having projecting tapered swaging edges pivot-ally secured to said mandrel, a rod extending above said mandrel and connected to said block and adapted when moved to cause said block to turn on its pivot and its projecting edges to be drawn Within said mandrel, a bearing member threaded to said mandrel, and means for turning said mandrel.

3. The combinatio n with a bushing, of amandrel having an elongated slot extending therethrough, a swaging-block pivoted within said slot, a rod connected to'and adapted to turn said block, a member longitudinally movable on said mandrel and adapted to bear against the upper side of said bushing, and means for forcing said swaging means toward said member and expanding said bushing.

4. A bushing-expander comprising a mandrel having an elongated slot therein, V- shaped swaging means pivoted within said slot and adapted to be entirely inclosed within or to have its swaging edges projected beyond the same, a member longitudinally movable on said mandrel, and means for causing said swaging means and member to approach or recede from each other.

5. A bushing-expander comprising a man- .drel having an elongated slot therein, a tapered swaging-block pivoted within said slot and having its tapered edges projecting beyond the edges of said mandrel, means provided for drawing the projecting edges of said block within said slot, an adjustable bearing member on said mandrel, and means for causing said block to approach said bearing member for the purpose specified.

6. A bushing-expander comprising a member adapted to be inserted in a bushing and having an elongated slot therein, a swagingblock pivotally secured within said slot, a nut threaded on said member and provided with an annular flange to adapt it to seat within the rim of said bushing and hold said member concentric therewith, and means for causing said swaging-block to be forced into and expand the bushing in which said member is inserted.

7 The combinationwithabushing, of amandrel adapted to be loosely inserted therein, a tapered swaging-block carried thereby, means for causing the tapered edges of said block to be inclosed within or project beyond said mandrel, a bearing member adjustably mounted on said mandrel, and means for causing said block to rotate within said bushing and approach said bearing means.

8'. A bushing-expand er comprising an elongated member adapted tobe loosely inserted in abushing and havinga slot extending through a portion thereof, swaging means secured with said slot, a vertical bore communicating with said slot and extending to the upper portion of said member, a spring-pressed rod in said bore having connection with said swaging means and adapted to trip the same, a bearing element adjustably mounted above said swaging means, and means for causing said swaging means to be turned and approach said bearing member.

9. A bushing-expander comprising a mandrel having an elongated slot therein, a block having projecting swaging edges pivotally mounted within said slot, a spring -pressed member connected with and adapt-ed to con- .trol the movement of said block, a bearing IOO IIO

736,647 element threaded to said mandrel and oar'ry- In `testrnony whereof I have hereunto ing an annular flange on its bearing-surface signed my nalne t0 this specification in the adapted to seat Within the rim of the bushpresence of two subscribing Witnesses.

ing operated upon and hold the mandrel eon- GODFREY STAIGER. 5 centric therewith, and means for causing Witnesses:

said block to lurn and approach said bearing VILBER A. OWEN,

element, substantially as described. CHAS. W'. OWEN.

Images