US65080A - pmotb-uth o - Google Patents

Description

@uitrit gisten inganni @fitta GEORGE R. HAY, OF EDGERTON,` OHIO, ASSIGNOR' TO HIMSELF AND J. R. SEELY, OF SAME PLAGE.

Letters .Patent No. 65,080, dated May 28, 1867.

IMPROVEMENT IN MACHINES FOB JOINTIN G STAVES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, GEORGE R. HAY, of Edgerton, in the county of Williams, and State of Ohio, have invented certain new and useful Improvements in a Stave-Jointer 'and I do hereby declare that the following is a full and complete description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specification, in whicl1 l Figure 1 is a side view of the jointer.

Figure 2is a top view of the same.

Figure is an end view.

Figures 4 and 5 are detached sections, to which reference will be made.

Like letters of reference refer to like parte in the several -views.

This machine consists of an oblong frame, A, iig. l, in which the oscillating beam B is suspended' at the points C C, by means of Vthe dependent arms D, and to the lower ends of which is attached the counter-balanceweight E. F is a rod, tightly drawn from the centres O C, and to which each end is secured for a purpose hereafter shown. G is a lever pivoted at the point H, a section'o` the frame being broken away so that it may be seen. I is a spring attached' to the short arm of the lever, and by the means of which thc long arm is brought to the position indicated by the dotted lines I". .I is an angle-iron fixed-to the side of the frame, and to which is secured the stay K. In the arms of this stay is journalled a shaft, Ki, and between which is a pulley, L. Upon the inner end of the shaft is hung the circular saw M, and upon the outer end is a small ily-wheel, M. A corresponding arrangement of stay, pnlley,'and saw is secured to the opposite side of the frame. Their position upon the frame, and their felation to each other, are shown in fig. 2. -The beam above referred to is constructed of two side pieces, bolted or otherwise secured together at their extreme ends. Blocks are placed between the ends, thereby keeping the sidesl apart, forming, by this means, a space nearly the whole length of the beam, and in which is tted the slidingholder N, iig. 2, a longitudinal section-ot' which is shown in fig. In one end of. this slide is a deep hole or chamber, a, iig. 4, in 'which is fitted a rod, A section of the inner end of this rod is larger than the outer, forming thereby a head, On the small section of the rod is a coiled spring, c, the purpose of which is to force the rod back into the chamber when pulled out, as Willhereafter bev shown. A pin, N', passes vertically through the beam, intersecting the extreme end of the chamber, and against which the end of the rod abuts, slipping into a slight notch cnt in the side of the pin, and by which it is kept in the position shown in the drawing. The projecting end of the rod, around which the spring is coiled, is connected to a. lug, d,"by a link, e, g. 2, and by the means of which it is operated, as will be hereafter shown. O O are clamps. P is a handlevby which the holder is moved backward and forward in the beam. Q, iig. 3, is a handle,.pivoted to the side of the beam, and projects beyond the side of the frame, through a' guide, R. The lower edge of the handle -is provided with teeth, which catch upon the bottom of the guide, and on being pressed down, holds the beam in any position, as it may be required.

Having thus described the construction of the machine, the operation of the same is as follows: The size of the barrel being determined, the beam is then adjusted `by removing and changing the pivots'upon which it vibrates, so as to bring the edge of the holder a. distance from the central rod F that shall be equal to half the diameter of the barrel. By this it Will be seen that the rod forms thecentre of vibration, and hence the centre of the barrel proposed to be made; or, in other words, if the beam and holder could be made to revolve it would describe a circle whose diameter would be equal to the diameter of the barrel. This being done, the saws are then so adjusted, by means of the screw and slot, by which they and the stay are attached to the angle-iron, as to bring their plane in line with the central rod, as shown in iig. 5; F being the rod and M the saws. Thus the plane of the saws is rectilineal with the radii of the diameter of the barrel, as indicated by thevdotted linef, figs. 3 and 5. This position of the saws gives the proper bevel to the edge of the stave, in order to form a true joint and make the barrel round and in good shape. The saws, .on being properly secured in position, the stave is then placed upon the holder, with the ends under the clamps referred to. First, however, the pin is allowed to drop dow n until its head is flush with the top. The stave now lies flat upon the holder. In order to saw the stave so that it shall be wider in the middle than at the ends, and thereby obtain the necessary bilge for the barrel, the stave is y*forced upward at the middle bythe pin referred to, by rncansotl the lever G., the short arm of which is immcdiatelyunder the pin; and when raised up to the required heightthe end of the rnd is forced into the notch cut in the side of the pin, lby the coiled spring above described, and is thereby retained. When the stavo is thus properly secured in the holder, the end is then brought to the edge of the saw M', by pushing the beam to that side of the frame, more or less, according to the amount to be sawn off, in order to malte the edge-of the stave straight; and when thus in proper range with the saw, it is held in .position by the notched handle Q, above .referred to, by pressing it down upon the edge of the slot of the guide. The holder is then piished forward by the handle' P, and the side of the stave sawn off; and when thus sawn off, the beam and holder-is turned to the opposite side of the frame, and thereby the other side of the stave is brought to the edge of the saw, as in the former case, and is retained in position in the same manner. On drawing the holder' back, the edge of the stave is in the saine manner savi-n off. Immediately on the return of the holder the lower end of the link e, by which the rod b is connected to the lug d, strikes against the point y, fig.' 1, and forces lthe rod back from the pin, which then drops down, relieving the stave, which is then removed and replaced by another. By this it will be seen that the sawing is done in both directions, and bythe position of the saws'to thework both sides of thc stave are given the same bevel, and that without reference to its width or thickness, which can in nowise change the result. The stave, also, being raised at the centre, as above described, throws the raised part of the stave farther from the edge of the saw than arc the ends, or than it would be if it lay straight upon the holder; hence, by thismeans is obtained a certain and niform bilge for each barrel, which, however, may be raised more or less, as may be required, by raising the middle of the stave more or less above theface ofthe holder, hy means of thefpin and'lever above described.

l What I claim as my improvement, and desire to secure by Letters Patent, is-

1. The link e, rod (Z, spring. c, pin N', and clamps O O', in combination with the vibrating frame, substantially as and for the purpose set forth.

'2. Theadjustable vibrating frame, providedwith the .devices for curving and holding the stave and detaching said stave when finished, constructed and operating substantially as described.

' GEO.y R. HAY.

Witnesses:

W. H. BURRIDGE, J. H. BUnRInGn.

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