US781112A - Pneumatic tool. - Google Patents

Description

No. 781,112., l y Y "PATBNTBD JAN. a1, 1905.

' J. P. TIPPETT & J.' D. PARKER.

PNEUMATIC TOOL.

l APPLIMTION FILED APB.e. 19n4.

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' than the frame. `of the main frame, taken on line III IIIof UNITED STATES Patented January 31, 1905.y

PATENT OEEICE.

JOHN F. TIPPETT, OF KANSAS CITY, MISSOURI, AND JAMES D. PARKER,

` OF KANSAS CITY, KANSAS.

PNEUMATIC Tool..

SPECIFICATION forming part of Letters Patent No. 781,112, dated January 31, 1905.

Application filed April 8, 1904. Serial No. 202,267. Y

To @ZZ whom, t may cov/worn:l

Be it known that we, JOHN F. TIPPETT, residing at Kansas City, in the county of Jackson and State of Missouri, and J AMES D. PARKER, residing at Kansas City, in the county of Wyandotte and State of Kansas, citizens of the lUnited States, have invented certain new and lmovably secured to the reciprocating frame for carrying saws, iles, burnishers, or other tools, and clamps adjustably secured-to the main vframe to engage .the object operated upon,and thus hold the main frame stationary while the lreciprocating frame is in motion.

The object of the invention is to provide a portable tool for sawing carcasses, metal, &c. more expeditiously than this work can be performed with ordinary hand-tools.

In order that the invention may be fully understood, referencewill now be made to the accompanying drawings, in which- A Figure 1 represents a side elevation of the improved tool in operative position upon a wooden block. Fig. 2'is abrokenside eleva-4 tion of a reciprocating frame forming part of the invention and provided with attachments for holding saws, les, and other tools shorter Fig. 3 is a transverse section Fig. 1, showing one of the clamps forming part ofthe invention secured thereto. Figs.

4 and 5 are vertical sections taken on lines 4 and 5, respectively, 'of Fig, 2, showing the adjustable attachments forming part of the invention. Fig. 6 is a modified form of one of the clamps. i

In said drawings, 1 designates a bow-shaped main frame provided at one end with a rectangular bearing 2 and at its opposite end with a loop 3, against the rear vertical side of-which a cylinder 4 is bolted.

5 designates a sleeve formed integral with the forward end of the main frame, which latter is provided near its rear terminal with handholds 6.

7 designates a fluid-supply pipe provided with a valve 8 for controlling the passage of iiuid therethrough. f

9 designates a piston-head reciprocably arranged in the cylinder and provided withl a forwardly-extending piston-rod 10., which extends through a bearing 11 on the front portion of loop 3 and is removably secured in the rear end of a reciprocating frame 12 by a locknut 13 engaging the threaded end of the piston-rod and which is screwed into contact with a boss 14, formed integral with the rear end of the reciprocating frame. Frame 12. is provided at its forward end with an integral stern 12, rectangular in cross-section for engaging rectangular bearing 2, which prevents the` stem from turning, so the latter will invturn prevent frame 12 from turning independent of the main frame.

15 designates a bolt adjustably secured in position by a thumb-nut 16 and ,v provided at its forward end with a dowel-pin 17, arranged in horizontal alinement with a dowel-pin 18, secured to the rear portion of the reciprocatj ing frame for the reception of a saw-blade 19, provided with apertures at itsY opposite -ends' for engagement with pins 17 and 18.

The horizontal portion of frame 12 is provided with marginal semicircular recesses 2O for the reception of transverse bolts 21, which carry attachments 22 23, respectively, bifurcated at their upper ends to'embra'ce the opposite sides of the frame. Attachment 22 is provided at its lower end with an integral clamping-jaw 24 and a hinged jaw25, which latter is adjustedby a set-screw 26, extending therethrough and engaging an internally- I threaded aperture 27 in jaw 24. The clamping-jaws are pointed at their lower inner terminals- 28 in order to reliably grip the end of a tool when placed therein. The lower end of attachment 23 is rendered resilient to a certain extent by avertical saw-cut 29 and provided with a tapering rectangular opening 30 for the reception of the pointed end of a tile 30a or other tool.

31 32 designate depending clamps, the former of which is pivotally secured at its upper end to main frame 1 by a bolt 33. Said clamp is secured at any angle to the frame by a transverse bolt 34, adapted to engage any one of bolt-holes 35, arranged concentrically with the axes of bolt 33. Clamp 32 is slidingly secured to the main frame by a bolt 36, extending transversely through a longitudinal slot 38 in said frame, and after said clamp has been adjusted to the desired position it is secured from accidental movement by tightening the nut on bolt 36, and thereby binding the upper ends of the clamp against the sides of the main frame. The clamps are iiared outwardly at their lower ends to give them a wide bearing-surface on the opposite sides of the object being operated upon.

In practice when sawing timber clamps 31 32 are adjusted against the opposite sides of the same, as shown in Fig. 1, so that when the piston reciprocates the main frame will be held from longitudinal vibration. Wrhen a saw is employed having teeth arranged to cut only on the forward stroke, clamp 32 may be removed as resistance on the main frame is in a backward direction, and consequently all that is necessary to overcome this resistance is to engage the object with the front clamp 3,'1. When the main frame is held upwardly at an angle in sawing a suspendedV beef or hog carcass into halves, clamp 3.1 is adjusted to the position shown by dotted line a in order to bear squarely against the back of the carcass, and when the workman stoops in sawing the carcass 'into' pieces the clamp is adjusted to the position shown by dotted line for the same purpose.

By providing sleeve 5, which is of sufficient length to prevent the forward end of stem l2 from projecting therethrough on completing its forward stroke, the end of the stem will be prevented from contacting with objects of any kind in front of the frame.

31a designates a modified form of clamp provided at its forward lower terminal with segmental portion 31h for contact with the back of the carcass when frame 1 is held at an angle to the latter. Consequently said clamp need not be adjusted like clamp 31, which it is intended to substitute when clamp 32 is not in use.

From the above description it is apparent that we have produced a tool well adapted for the purposes intended, and while we have shown the preferred construction of the several parts we of course reserve the right to make such changes as properly fall within the scope of the appended claims.

Having thus described our invention, what We claim, and desire to secure by Letters Pat-- ent, is-

1. A tool of the character described, consisting in a main frame, a cylinder secured to one end thereof, a piston reciprocably arranged therein, a piston-rod secured to the piston and extending through one end of the cylinder, a reciprocating frame attached at one end to the outer end of the piston-stein, and a stein on the opposite end of thev reciprocating frame slidingly arranged in the adjacent end of the main frame.

2. A tool of the character described, consisting in a main frame, a cylinder secured to one end thereof, a piston reciprocably arranged therein, a piston-rod secured to the piston and extending through one end of the cylii'lder, a reciprocating frame attached at one end to the outer end of the piston-stein, a stem on the opposite end of the reciprocating frame slidingly arranged in the adjacent end of the main frame, and a clamp pivotally secured to the main frame.

3. Atool of the character described, consisting in a main frame, a cylinder secured to oneI end thereof, a piston reciprocably arranged therein, a piston-rod secured to the piston and extendingthrough one end of the cylinder, a reciprocating frame attached at one end to the outer end of the piston-stem, a stem on the opposite end of the reciprocating frame slidingly arranged in the adjacent end ot' the main frame, and clamps adjustably secured to the main frame.

4. A tool of the character described, consisting in a main frame, a cylinder secured to one end thereof, a piston reciprocably arranged therein, a piston-rod secured to the piston and extending through one end of the cylinder, a reciprocating frame attached at one end to the outer end of the piston-stein, a stem on the opposite end of the reciprocating frame and slidingly arranged in the adjacent end of the main frame, and tool-carrying attachments adjustably secured to the reciprocating frame.

5. Atool of the eharacterdescribed, consisting in a bow-shaped main frame havinga reetangular bearing at oneend and an integral loop at its opposite end, the loop also having a bearing, a cylinder secured to the rear end of the loop, a piston reciprocably arranged therein, a piston-rod secured to the piston and extending through one end of the cylinder and the bearing in the loop, a reciprocating frame attached at one end to the outer end of the piston-stem, and a stem, rectangular in cross-section, on the opposite end of the reciprocating frame slidingly arranged in the adjacent bearing of the main frame.

6. A tool of the character described, consisting in a bow-shaped main frame provided with bearings at its depending ends and a longitudinal slot in its longitudinal portion, a depending clamp secured to the main frame by a bolt adjustabiy arranged in the longitudinal slot, a depending clamp pivotaliy secured to the main frame near one of its ends, means for IOO IZO

' of the main frame.

7 Atool of the character described, consisting in a bow-shaped main frame provided at its depending' ends with horizontally-alined bearings, and a forwardly-extending sleeve formed integral' with the front portion of frame in horizontal alinement with the bearings, in combination with a cylinder secured to the rear end of the main frame, a piston reciprocably arranged therein, a piston-rod secured to the piston and extending through one end of the cylinder and the adjacentbea-ring in the main frame, a tool-carrying reciprocating frame attached at one end to the outer end of the piston-stem, anda stem on the opposite endol" the reciprocating frame slidingly arranged in the adjacentloearing ofthe main frame and the sleeve.

8. Atool of the character described, consisting in a main frame provided at its opposite ends with bearings, a cylinder secured to one end of said frame,a piston reciprocably arranged in the cylinder, a piston-rod projecting forwardly from the piston through one end of the cylinder and the bearing in the rear end of the main frame, a reciprocating frame attached atone end to the forward end of the piston-stem and provided at its opposite ends with means for detachably carrying a tool, and a stem projecting from the forward end of the reciprocating frame and slidingly arranged in the front bearing of the main frame.

9. A tool of the character described, consist- Aing in a main frame, another frame reciprocably mounted thereon provided with marginal recesses in its horizontal portion, and tool-carrying attachments provided at their upper ends with means for adjustably engaging the marginal recesses.

- 10. A tool of the character described, consisting in a main frame, another frame reciprocably mounted thereon provided with marginal recesses in its horizontal portion, tool-carrying attachments provided at their upper ends with means for adjustably engaging said marginal recesses, adjustable clamping-jaws at the lower terminal of one of said attachments, and apertured spring# jaws formed integral with thelower end of the other attachment.

In testimony whereofwe aiix our signatures in the presence of two witnesses.

JOHN F. TIPPETT. JAMES DPARKER.

Witnesses:

F. G. FISCHER, J. MOORE.

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