US61688A - James f - Google Patents

Description

@with faire 'stent .ritira JAMES F. SAYER, OF MACOMB, NEW-- ORK.

Letters Patent No. 61,688, dated January 29, 1867.

IMPROVEMENT IN STAVE JOINTERS.

T0 ALL WHOM IT MAY CONCERN:

Be 'it known that I, JAMES F. SAYEn, of Macomb, in the county oi' St. Lawrence, and State of New York,l

have invented a new and useful Improvement in Stave Jointers; and I do hereby declare that the followingis s full and exacto description thereof, reference being had to the accompanying drawings making part of this specication:

Figure l is a perspective view of my improved apparatus.

Figure 2-is a4 cross-section of the knife stock.

Like letters of reference indicate corresponding parts in both gin'es.

My invention is an improvementl onthatpatented by me August 21, 1866, (No. 57,387.) In that device I employed, in connection with the curved bed to which the stave is cl`amped,'a swnginghnife o r shave, and a v disconnectedplane, which moved in a slot or groove, to joint the edges of the staves. My present` .improvement consists in a swinging plane instead of a disconnected one. employed in combination withthe swinging knife :ind curved bed.

In the accompanying drawings, A indicates a bed, having a curved side, a, for fitting the' stave tp, and' level surface, b, for the sweep of `the knife and plano. The bed isprovided, nidway on the back side, with a right-angled extension, D, and to this is pivoted,-at l, the stock or handle m` of the shave-knifeB. Thus far the construction is the same as invmy patent before alluded to. ,Instead of making my plane Cy independent and disconnected, and running in a slot or groove in the top of the bed, as-in4 my-rst invention, I provide it with a stock or handle, P, pivoted at q. It thus forms a swing plane.-

rIhe operation will be readily understood. When the stave is secured in place on the bed, Ithe knife B is swept over it from the centre each way to cnt-oh' the rough edge. When this is accomplished'it is swung` out of the way, as indicated by red lines, lglx1, and the plane C is then swept over the edge of the stave from end to end, to ,joint it smooth. By thusfollowing the curve of the sta-ve, the swinging piane will not only cut much easier than the disconnect-ed plane, but 'will l also do its work better, by preventing splintering .when running across the grain. It can also beheld to its work much more readily than'the disconnected plane, and there is no danger of its running from its work). This combination of tle swing plane and knife with the curved clampingbed reduces the apparatus to a very simplel and' convenient form, vand admirably adapts it to use vin small shops where power is not available. In my former invention the cutting edges of the knife were formed as a part of the stock by simply thinning the same down in double-bevelled form., In thus forming the` knife and stock of metal, it is very expensive. In my 'present invention I make the stock m of wood, simply cutting a throat, r, at the proper position on the under side, and across this throat I screw the donble-edgedlrnife B. This arrangement is very cheap, and is as e'ective in operation as if made entirely of metal.

What I claim as my invention, 4and desire to secure by Letters Patent, is

The arrangement of the swinging plane C, double-acting knife.B, and bed A, operating substantially in the manner and for the purposes specified,

In witness whereof I have-.hereunto signed my name in the presence 'of two subscribing witnesses.

.JAMES F. 'sAYEn Witnesses Fon'rmsmus Suma, JOHN STACEY.

Images