US1976173A - Barrel stave - Google Patents

Description

Oct. 9, 1934. E. w. HUTCHINGS I BARREL STAVE! Filed Sept. 25, 1933 2 Sheets-Sheet l Patented Get. 9, 1934 warren srarss PATEhlT @FFEE 3 Claims.

This invention relates to the manufacture of staves for barrels and other containers and the object is to utilize thoroughly seasoned and dried lumber which is now available and which will render unnecessary steaming of the stave in order to bring it into the desired shape. Staves for barrels and kegs, especially for beer kegs, have heretofore been cut from white oak and then subjected to steaming in order to be bent into the required curvature. White oak, however, at the present time, is very scarce and the steaming process is expensive and timeconsuming, while there is available a plentiful supply of thoroughly dried and seasoned lumber which may be utilized for the production of staves. It is an object of the present invention to utilize available lumber, and especially lumber which would otherwise be treated as waste, for the produc tion of staves by a method which is expeditious and inexpensive. The invention will be herein fully described in connection with the accompanying drawings and resides in certain novel features which will be particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a view partly in side elevation and partly in section of a keg including staves produced according to the present invention.

Figure 2 is a perspective view of a block from which a stave is to be made.

Figure 3 is an elevation of a stave produced from the block shown in Figure 2.

Figure 4 is an edge view of the stave.

Figure 5 is an enlarged detail section on the line 5-5 of Figure 4.

Figure 6 is a perspective view of one end of the stave.

Figure 7 is a View similar to a slightly different form of keg.

Figure 8 is a perspective View of a block from which is to be produced a stave, such as are employed in the keg shown in Figure 7.

Figure 9 is an enlarged section showing a slight modification of the stave.

Figure 10 is a section corresponding to Figure 5 but showing a further modification of the stave.

According to the present invention, a block of wood, the length of which is equal to the height of the container, which is ultimately to be produced, is utilized as a blank from which staves are to be made. The block may be a single unit, as indicated at 1 in Figure 8, or it may be composed of laminations or strips, as shown at 2 in Figure 2. When the block is formed from a plu- Figure 1 showing rality of laminations, the several laminations are joined together until their combined width is equal to the width decided upon for the stave, and the stave is then formed from the block. The several strips or laminations are provided with mating tongues and grooves, as indicated at 5 and 4, whereby they will be held in proper alinement and the opposed surfaces of adjacent strips are coated with cement or glue or other adhesive so that they will be permanently and rigidly united in the blank. The intermediate strips may have their sides formed on parallel lines, as shown in Figure 5, while the outermost strips, which form the sides of the completed stave will be disposed on radial lines, also as shown in Figure 5. If preferred, however, the several strips may have their side faces disposed on radial or converging lines, as shown in Figures 9 and 10. When the strips have been secured together, a longitudinal rib 5 is formed on one side of the blank and a corre- 7 spending groove 6 is formed on the opposite side of the blank so that when two staves are fitted together the rib on one stave will engage in the groove on the other stave and the staves will thereby be maintained in fixed relation. The blank or block is then placed in a shaping machine and one side thereof is cut away at the ends so as to produce the outer convex surface '7, which is shown in Figure 4, and is indicated by the dotted lines in Figures 2 and 8. The opposite side of the block may be cut away to produce the concave surface 8 which will form the inner surface of the keg or barrel, but it may be preferred in many instances to have the inside of the keg or barrel a true cylinder, in which event the inner edges 0f the stave will be left straight, as will be understood upon reference to Figures 7 and 8. The corners of the inner faces of the staves are then beveled, as shown at 9, to produce the usual finish and notches 10 are cut in the inner faces of the staves to form the crozes 11. The staves are assembled in cylindrical form in the usual manner and hoops 12 are placed around the keg or barrel to retain the staves in proper engagement, the heads 13 being fitted in the crozes in the usual manner.

From the foregoing description, taken in connection with the accompanying drawings, it will be seen that I have devised a method whereby staves may be expeditiously produced from thoroughly seasoned lumber without any recourse to steaming and whereby lumber which would otherwise be treated as waste may be utilized commercially. If there is available a single block of the proper width for a stave, as indicated in Fig ure 8, such block may be used, but if such a block is not available narrower blocks may be assembled, as shown in Figures 1 to 6, and secured together, and the manufactured block may be sawed and cut to the desired shape. The several blocks or laminations of the staves will present their grain longitudinally of the stave so that the completed keg will be strong and durable and fully adapted to withstand rough usage. The ribs 5, fitting in the grooves 6, are formed longitudinally of the blank parallel with the sides of the blank and when the blank is cut into the shape of the stave the rib will extend from the outer side of the stave at the ends thereof to the inner side of the stave adjacent the center and consequently, will resist any tendency of adjacent staves to separate in a highly efiicient manner. A stave produced in accordance with the present invention will be very inexpensive, and may be produced more rapidly than staves made according to the process heretofore most generally followed.

Staves are generally four inches wide but it has been found that, by following the process herein set forth, staves can be made from a block three and one-fourth inches wide, thereby using less wood and incurring less waste without any sacrifice of strength. By forming a block of laminations very narrow strips may be used and by cementing the strips together a plurality of strips may be run through the shaping machine at one time which will cost less than running the strips through singly. The stock for the staves may be ripped from low grade boards which will constistute a very cheap and plentiful source of supply.

Having thus described the invention, I claim:

1. A stave for barrels and kegs consisting of a wooden strip having a convex surface from end to end and provided on one side with a longitudinal rib extending on a straight line between the opposite ends of the stave at the outer corners thereof and provided on its opposite side with a correspondingly located groove adapted to receive the rib on an adjacent stave.

2. A stave for barrels and kegs consisting of larninations united side by side to form a block, one side of the block being concave and the opposite side being convex and concentric with the concave surface and the meeting sides of the block being disposed on radial lines, one of the last-mentioned sides having a rib extending on -a straight line between its outer corners and the other meeting side being provided with a correspondingly located groove.

3. A stave for barrels and kegs consisting of laminations united side by side to form a block, with the mating sides of the block disposed on radial lines, one of the last-mentioned sides having a longitudinal rib extending on a straight line between the opposite ends of the stave at the outer corners thereof and the other mating side being provided with a correspondingly located groove.

EDWARD W. HUTCHINGS. [L. SJ

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