US35550A - Improved sawing-machine - Google Patents

Description

"shown clearly inFigrl. i

BB are two vertical guides, which are at- PATENT QFFICE.

B. soUTHGArE, oF BRiDeEwArna vnaMoNT'.

. IMPRQVED sAwlNe-MAfsl-lme.

i i Specification forming 0f Letters 1:'atei1t'N.` 35,550, dated June 10, 1862.

To all whom,` it may concern:

Be it known that I, B. F. SOUTHGATE, of

Bridgewater, in thecounty of Windsor and State of Vermont, have `invented Ia new and Improved `sawing-Machine; and I do hereby declare that thefollowing is a full, clear,Y and feXact description of the same, reference being had to the accompanyingdr'awings, making a part of this specification, in 'which- Figure 1` is atransverse vertical section of i my invention, taken1 on Ythe line a: m, Fig. 2;

Fig.\2, a longitudinal` vertical section of the same, taken on thedline y y, Fig. `2; Fig. 3, a horizontal section .of `ai portion of the same, taken on theline z z, Fig. 2.

Similar letters of reference indicate', corresponding parts inthe several iigures.-

This invention' relates to a new and im-4 i proved sawing-machine of that classfdesigned y moreespecially for sawingsmall stuff or work,i i as,forinstance, fellies for wheels, scroll-work,

andthe like@ To enable those skilled in the art to fully understand and construct my invention, I will proceed todescribeit.

A represents the framing of thel machine,

` which may be constructed in any proper manner to support the working parts, and a. a are two uprights, one at each side of the framing, and projectinga considerable distance above it, and `connected by horizontal bars b, as

tached` centrally to the bars 12 and between which a slide, @,is fitted and allowed to work up anddown freely. i

DD are two bars, which arerattached centrally and horizontally to the slide C, one nearits vupper and theother near its lower l end. (See more particularly Fig. `1.) These bars D D are secured .in proper position by diagonal bracesc, attached to, them `and the Aslide C, and fbetweenthe ends. of said bars sawsE E are securedand strained inthe ordinary or anyproper way. The saws E may be of thekind usually employed for sawing scroll- `work, fellies, A8vo.` The slide O and bars D D y form the saw gate' or sash, andit may be driven by connecting-rods F F from a crankshaft, G, as shown clearly in Fig. 1.

` i A II H are parallel ways, which areplaced longitudinally on the framing A, and o'n each i pair o 4ways there is placed a carriage, I, to or on which the stuff J to be sawed is placed and secured in any proper way, There is a carriage, I, for each saw E, and each'carriage has two cords or chains, K, attached to it, one

at each end, and these lcords or chains pass r around shafts L, on the inner ends ofwhich ratchet-wheels M are placed.-

Thepshafts L L are placed transversely on the framing A, and in line with each other,

and to the back side of the slide C there is atlevers N N, as shown in Fig., 2. Eachlever N has a pawl, O, attached to it by a pivot, i, and said pawls, when at work, engage with the ratchets iM M.

P P are arms, which are attached one to the outer side of each guide `B by pivots. The outer ends of these arms are connected by wireslc k to the back ends of levers Q Q, the fulcrum-pins Zof which pass throughuprights m, between the upper bars, b b, which connect the two uprights a c. The front ends of the levers Q Q are connected to vertical rods R B, which are at the outer sides of the guides B B, and are notched at their lower parts, and catch over guides n by means of springs o. (See Fig. 2.) ,.Ihe arms P P project underneath the pawls O O, and by raising said arms through the medium of the levers Q and rods B the pawls O may be disengaged from the ratchets M when desired.

The operation is as follows: When the pawls O are engaged with the ratchets M and power applied to the shaft G, a reciprocating motion Willbe imparted to the slide C, and consequently to the saws E E, the latter operating on the stuff in the carriages I I. Each time the slide G and the saws E E rise the frictionroller e acts against the blocks g g, and shoves them and the levers N N outward, and thereby actuates the pawls O, which move the ratchets M, the latter turning the shafts L L, and the cords or chains K move the carriages I and feed the stuff J to the saws. In sawing straight work the stuff is secured to the carriages; but in sawing scroll or any curved Work the latter is held on the carriages and turned by the operator. In case of one saw only requiring t0 be used, a rod or bar may be placed at one end of the bars B. The carriages may be gigged back by hand, or any suitable mechanism employed for the purpose.

I do not claim a' reciprocating saw gate or sash provided with a saw at each end irrespective of the construction herein shown and described, for such device has been previously used; but

I do claim as new and desire to secure by Letters Patent- The levers N N, provided with the pawls O, and operated from the sav:r gate or sash, as shown, in combination with the ratchets M M, shafts L, and the cords or chains K, or their equivalents, all arranged substantially as shown, for giving the feed-movement to the carriages I, as set forth.

. B. F. SOUTHGATE.

Witnesses:

CH. S. RAYMOND, SOLOMON WARREN.

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