US65217A - Improvement in sawing machines - Google Patents

Description

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@Intim tetes strnt @fitta HENRY HASSENPFLUG, OF HUNTINGDON, IENNSYLVANIA, ASSIGNOR TO HIMSELF AND EDWARD HA-SSENPFLUG.

Letters .Patent No.A 65,217, dated Vey 28, 1867f IMPROVEMENT IN SAWING MACHINES.

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TO' ALL WHOM IT M A-Y CONOERN:

Be it known that I, HENRY HASSENPFLUG, of Huntingdon, in the county of Huntingdon, and' State of Pennsylvania, have invented a new and improved Sewing Machine; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to ineke and use the same, referencelbeing had to the accompanying drawings, forming part of this speciiication, in which- Figure l is avertical longitudinal section of my improved sawing machine, taken on the line :e x, iig. il.

Figure 2 is a plan or top vieiv of the same,

Similar letters ot' reference indicate like parts.

This invention relates'to a portable sawing machine, which is to be chiefly used for cross-cutting and for cutting cord-woodkand for scroll-work, but which may also he changed so as to be used for ripping. i

The invention consists ,chiefly in the self-feeding apparatus, whereby the Wood is gradually fed to the vertical reciprocating saw. The invention also consists in such av construction ot' the parts that the distance between the ends and the fulerurn of the. lever by which the saw is operated can he changed at 1will, so :is to increase or diminish the power or the speed of the machine, as may he desired.

A represent-s an oblongframe, made of wood or other suitable material, and supported by posts, B B, of suitable construction. The same is provided with suitable braces for strengthening, and has tivo handles, a a, at one end, and a wheel, 11, at the other end, so that the whole machine may be moved from place to place like awheelharrow by raising the ends a. An upright pest, C, is arranged in the frame A, and extends above the same, as shownl Tivo levers, D and E, are pivoted to the post C, the pins c and d forming their respective fulcra. To the front end of each of these levers is secured the end of an upright saw, F, and the rear ends of the levers are pulled together by a piece of cord, e, that is provided with a lever, e, in the usual style for straining or stretching the saw-blade. G is the carriage, upon which the block to be saired is placed. A crossK head or rest, f, is provided thereon for the block-to rest against, and a curved lever, g, which is provided Wies. teeth at its under side, and which is pivotedto the rear or inner endo'f the carriage. G serves to held the said block in place; the front end of said lever g being held down by a chain, 7L, which is tted over a pin, z', that is secured to the front edge of the carriage, asis clearly shown in iig. 1. The carriage is placed upon rests or iauges, y', which are arranged stationary on the frame A, so-that the carriage can freely slide to and from the saw; and the carriage is slotted so as to let the saw pass freely up and down. A cord or chain, Z, is attached to the rear or inner end ef the carrige G, and passes over a roller, m, that is secured to the rear end of the frame A, and is provided at its end with aweight, n. Before the wood is secured upon the carriage the latter is prevented from slidingl hack towards the saw by a pin, o, or other suitable stop. When the Wood is secured this stop is removed, and the Weight n instantly pulls the carriage back until the front or cutting edge of the saw strikes against the wood. Then the motion is imparted to the levers D and E, or to onevof them only, and the saw is moved up anddown, and the carriage is gradually fed back by a Weighted pawl, p, that is pivoted to the lev'ei D, and engages a ratchet-bar, g, which is fixed in the upper surface of the carriage G, as shown. During the vibrating motion ofthe lever D the end ofthe lever); is moved back and forth, and during itsback move it carries the carriage and block back with it.

Motion is imparted te the lever D by a connecting-rod, H, which is secured to a crank-shaft, I, the latter receiving motion from any suitable mechanism. The upper end of the rod H is hinged to a small pin, r, which passes through the lever D. It will be observed that the levers D and E are provided with a series of holes, 8 s', whereby their respective fulera can he changed when desired, which is obvious, as is also the object of the holes t in the rear end of the lever D, whereby the position of the rod H eanbe changed. It will be scen that a great change of speed and power can thus 4he obtained for this machine, and the same can consequently be adapted for diiierent kinds of work. The front end ofthe lever E is connected with the end of a spring, u, or provided with a Weight, e, or both, which-have the tendency to depress the front end of this lever. The object of this spring and weight is to force the saw through the Wood during the downward stroke ofthe fermer,- while the upward stroke is notaffected. By having tivo posts,.C, and connecting two ksets of levers, D and E,-

by cross-bars, to which the saiw is attached, this sanne machine may he aapted for ripping,`a.nd for doing all other kinds of work that can be done on a, sawing machine. In this case the perfoated levers,'the feed motion, and the Weight v or spring u would operate as described for the cross-cut saw.

What I claim as new, and desire to secure by Letters Patent, is- The feed device, consisting of the weighted cord l, arranged in relation with the pawlp end ratchet-bar q, all made as described, and operating so that the carriage shall be moved toward the saw, as herein set forth for the purpose specified.

HENRY HASSENPFLUG.

Witnesses JAMES SCHOULER, 1 o WM. ScHoULEn.

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