US14223A - brown and a - Google Patents

Description

F. BROWN AND A. BROWN, OF NEW YORK,

MACHINE FOR BORING AND TURNING WOOD.

Specification of Letters Patent No. 14,223, dated February 12, 1856.

To all whom it may concern.'

Be it known that we, FELIX BROWN and ADoLPH BROWN, of New York, in the county and State of New York, have made a new and useful Improvement in Machines for Turning and Boring Vood; and we hereby declare that the following is a full and exact description of the construction and operation of the same, reference being had to the accompanying drawings and 'to the letters of reference marked thereon.

Figure I is a longitudinal elevation, and Fig. II a top view of the machine. Fig. III is a View of the fixed support (C) with the friction rollers and the different tools attached, and Fig. IV represents a different arrangement for cutting off the finished work.

The nature of this invention consists in certain improvements made on the machine for turning and boring wood, for which a patent was granted to us on the third day of July, 1855.

(A) is the bedplate to which the supports (D D and C) are firmly attached.

(L) is t-he driving pulley running between the supports (D D) and guided by the same. This pulley has a square hole through the center through which the wood passes.

(T) is a support, capable of sliding upon the bedplate (A) and worked by the screw (R) situated at the side of the bedplate, and extending nearly the whole length of the same. To this support (T) a long center bit (g) is attached to carry the after end of the wood.

(E) is a support to which the bearer (b) for boring out the wood is attached. This support is capable of a backward and forward motion on the bedplate (A) and is acted upon by the cam (N) as well as by a suitable spring (5) or weights.

(F) is a support likewise movable on the bed plate and acted upon by the cam (M) in connection with a spring 7 or weights. This support has a suitable projection, through which the borer (b) passes and by which the same is kept steady and guided.

(n, n, n) are the friction rollers attached to the bars (a, a, a), which lat-ter are fastened to the fixed support (C) by the screws (8 and 9) in such a manner as to be able to regulate by said screws the distance between the friction-rollers to suit dierent sizes of wood.

(L) Fig. I is a knife attached to the fixed support (C) on the side next the driving pulley, by which said knife the square wood, after passing through the driving pulley (L) is turned around.

(10 and 12) are tools fastened to slides (11 and 13), attached to the support (C) and acted upon by their respective cams (H and H). By those tools the required shape and figure is given to the outside of the wood.

(m) is the cutting ofil knife fastened to the slide (14), attached to the fixed support (C) and acted upon, through the lever (X) by the cam (IV). The slides (11, 13 and 14) are attached to the fixed support (C) in such a manner as to allow the same and consequently the tools attached to them, to be moved inward and outward by the action of their respective cams and springs or weights. Instead of the above described cutting off knife a circular saw (G) may be attached to the slide (14) (Fig. IV). The saw being in that case worked by a separate belt from a pulley on the countershaft overhead, while the slide is worked as before described, for the purpose of cutting off the finished work.

(O, O) are shafts upon which the different cams are placed. These shafts are worked through the gearing (r, s and u) and the pulleys (l, 2, 3, 4) or by any other similar arrangement. The pulley (4) is at tached to the driving pulley (L).

(B) is a support for a slide to which the finishing knife is attached, and is acted upon by the cam (K). On the end of the shaft (O) a tooth wheel (P) is attached, working into the tooth wheel (A) fast on the end of the screw This wheel (P) has on a part of its circumference the teeth cut ofi", (Fig. V), by which arrangement the screw (R) will remain stationary during part of the revolution of the wheel (P) when consequently no wood will be fed up to the tools, giving them the knife or saw (G) time cut off the finished work.

The operation of the machine is as follows: The wood of the required size and length is put through the hole in the driving pulley (L) and then fastened on the centerbit (g) and the machine set in motion. The wood fitt-ing in the hole of t-he driving pulley is by said pulley (L) turned around, and is at the same time pressed through the same and fed up against the .the wheel (Q).

tools by the action of the screw upon the support (T). The wood comes then rst in contact with the knife (7L) by which it is turned around and passes then through the fixed support (C) and between the friction pulleys (a, a, n) by which the same is guided. The advantage and purpose of those friction pulleys are to prevent the heating of the wood, which invariably takes place, if the wood passes through and is guided in a hole made for that purpose in the fixed support The support (F) is then in such a position as to support the eX- treme end of the boring tool (b) and remains in that posit-ion, until the boring tool (b) has entered some little distance into the Wood when the shape of the cam (M) allows a spring or weight to act upon this support (F) in such a manner as to pull said support backward, as fast as the wood is pressed forward against the boring tool (b). While the wood is being bored out the cams (H and H) act upon the slides (1l.A and 13) and consequently upon the tools (10 and l2) giving thereby, according to the shape of said cams, to the outside of the wood the required form. When the outside of the wood has been turned the required shape or form and the same has been bored out sufliciently far, the wheel (P) has turned so far around as to bring that part of its circumference where the teeth have been cut off, opposite to the wheel (Q) Fig. V, which will then, together with the screw (R), remain stationary until the teeth of the wheel (P) come again into the teeth of During the time the screw (R) is made to remain stationary there will `consequently no wood be fed up against the tools and the same will only revolve through the action of the driving pulley (L). The slide (B) with the finishing tool attached is then acted upon by the cam (K) and will polish the outside of the Wood while at the same time a recess shown in dotted lines in Fig. I on the cam (N) al- 'lows a spring 5 or weight to pull the support (E) with the boring tool (ZJ) out of the wood, and the cam acting through the lever (X) upon the slide (14C) forces the knife (m) (Fig. IH), or the circular saw (G) (Fig. IV) on the revolving wood, and thereby cut-ting the finished work off.

The wheel (P) comes now again in gearing with the wheel (Q) and the wood will therefore be again fed in, while the cam (N and M) will act upon t-he supports (E and F) and move the same forward again in the above mentioned position, and the described operation will be repeated.

From the above description and operation of the machine it will readily be understood that almost any shape and gure may be turned as well as bored out, by the change of only some few parts and the size of the work as regards outside diameter depends only upon the size of the hole through the driving pulley (L), while the depth the wood is bored out, and turned on the outside depends upon the speed of the screw (R) by whichthe quantity of wood fed in, in a certain time, is regulated, and this said speed of the screw (R) may easily be increased or diminished by the relative diameters of the wheels (P and Q), and the outside form to which t-he wood is to be turned is varied and regulated by the shape of the cams (H and H).

)Vhat we claim as our invention and desire to secure by Letters Patent isl. The support (F) guiding the eXtreme end of the boring tool, said support being acted upon by a cam in connection with springs or weights in such a manner as to remain stationary until the boring tool has some little distance entered the wood, and is then made to go backward in proportion as the wood is pressed forward, substantially as described.

2. )Ve claim the Aarrangement and manner of working either the fixed knife or the revolving saw for the purpose of cutting off the finished work, in the manner as specified.

3. We claim the arrangement and manner of working the tools (1() and l2) in connection with the movable slides (11 and 13) attached to the fixed support (C) acted upon by their respective cams H and H for the purpose and in the manner substantially as described.

FELIX BROWN. ADOLPH BROWN.

Witnesses Y HENRY E. ROEDER, J. D. MENSING.

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