US332164A - Device for holding circular saws - Google Patents

Description

(No Model.) 2 Shets-Sheet 1. J. PRICKETT.

DEVICE FOR HOLDING GIRGULAR SAWS.

No. 332,164. Patented Dec. 8, 1885.

WITNESSES IJV VE-N TOR g) 5 fo skww v I 11129 Attorneys.

(No Model.) 2 Sheets-Sheet 2.

J. PRIGKETT.

I DEVICE FOR HOLDING CIRCULAR SAWS. No. 332,164. Patented Dec. 8, 1885.

'III 110 IJV'VEJV'TOR I (I l/ I a a I a E Zzs .dttorneys.

N4 PEYERS PhoimLilhognph-r. wuhinnm. .6.

UNITED STATES PATENT OFFICE.

JOSHUA PRIOKETT, OF MARINETTE, l /VISOONSI N.

DEVICE FOR HOLDING CIRCULAR SAWS.

SPECIFICATION forming part of Letters Patent No.332,l64.-, dated December 8,1885.

Application filed September 28, 1885. Serial No. 178, 400. (No model.)

To all whom, it may concern:

Be it known that I, JOSHUA PRIOKETT, a citizen of the United States, residing at Mari- ,nette, in the county of Marinette and State of Wisconsin, have invented a new and useful Improvement in Machines for Holding Gircular Saws, of which the following is aspecification, reference being had to the accompanying drawings.

My invention has relation to a machine for holding circular saws while being hammered on an anvil; and the novelty consists in the construction, combination, and arrangement of parts, substantially as hereinafter fully set forth, andspecifically pointed outin the claims.

The object of my invention is to provide a machine for holding saws,which can be easily and conveniently operated to hold the saw which it carries at any angle to the anvil on which it is to rest, to be operated on by the hammer in the hands of the workman, which can be revolved in the arc of a circle to suit various requirements, which can be adjusted vertically to accommodate anvils of varying heights, and also adjusted laterally or sidewise to bring the outer and inner edges of the saw to bear or rest on the anvil, to provide means which shall provide a support for the outer edges of thesaw while the inner portions thereof are resting on the anvil and being manipulated by hand, and which can be adj usted vertically and laterally independently of the mechanism for supporting the saw and a further object of my invention is to combine simplicity and strength of construction with thorough effectiveness of operation and ease of manipulation in adjusting thevarious parts of the machine to suit various requirements.

I have illustrated an embodiment of my invention in the accompanying drawings, in which Figure 1 is a side elevation of a sawholding machine constructed in accordance with my invention. Fig. 2 is a plan View. Fig. 3 is a rear elevation. Fig. 4 is an enlarged detail sectional view of the crank-arm-carrying sleeve and its adjusting devices, and Fig. 5 is a detail sectional view of one form of de vice for adjusting the carrying-sleeve. Fig. 6 is a modification of the sleeve adjusting device.

Like letters of reference denote corresponding parts in all the figures of the drawings, referring to which- A designates a base on which is mounted a standard or supporting upright, A, preferably cast integral with the said base, and having a screw-threaded socket, a, at its upper end for the reception of the adjusting screw of the saw-carrying arm.

0 designates a tubular sleeve, fitted over the outer vertical face of the standard A and free to rotate around and slide vertically thereon, for a purpose which will more fully presently appear, the upper end of said sleeve being connected to or secured on an adj usting-screw, D, working in the threaded socket a of the standard, and having ahand-wheel, D, for ts convenient manipulation, whereby when said screw is adjusted up or down it will carry with it the sleeve and its attached devices, and thus accommodate them to anvils of different elevations.

E designatesajhollow bearing or sleeve arranged at the upper end of the sleeve 0 and the standard A, and having a perforated lug, 6, through which passes a pin, E, to suspend said sleeve or hollow bearing from the sleeve 0 and permit the same to have a vert cal oscillating movement, said sleeve E being arranged at one side of the sleeve 0, as shown.

E designates a curved arm or bracket formed or cast integral with the sleeve E and the supporting-lug E, and having a curved slot, 6, through which pass ad usting-screws F, that take into threaded seats or sockets 1n the tubular sleeve 0, and serve to hold the curved arm E and; the hollow bearing or sleeve E to any desired adjustment ina vertical plane, said sleeve or bearing E beingfree to oscillate vertically in its suspending p n or pivot E, and held in position by the ad usting-screws working through the slot in the curved arm E, as described.

G designates the saw-supporting arm or shaft normally held in a horizontal positlon at the upper end of the standard A and tubular sleeve 0, one end of said shaft having a crankarm, f, which extends through and bears in the hollow bearing or sleeve E, and is free to rotate therein in a complete circle or in the are of a circle, said crank-armf being held in the sleeve E by a transverse pin, f, passing through the outer end thereof, projecting beyond the sleeve E and bearing on the outer vertical face thereof. On the outer end of the crank shaft or arm G the saw to be operated on is mounted, and I will now proceed to describe the particular means which I employ to detachably connect said saw to the arm.

H designates a shaft or arbor having a threaded portion, h,which screws or works in a threaded socket in the outer. end of the crank-arm G for supporting the saw, said shaft also being provided with a cylindrical plain portion, h, separated from the threadedportion by an abutment or collar, h, an outer reduced end, 7?, which is exteriorly threaded,for a purpose presently described. The extreme outer ends of said shaft are squared, as at h*, to provide convenient means for adjusting the shaft by a wrench or other suitable device.

I designates a roller which has a sleeve, t, and which fits over the plane portion 71/ of the shaft II, and is held in place by the abutment h and a nut, P, which is preferably of cylindrical form and works or takes into the thread of the reduced portion h of said shaft or arbor H, and bears against the outer vertical face of the sleeve 1', and thus prevents its displacement, while at the same time said sleevet' and collar I are free to rotate on the plane portion h. The outer end of the sleeve 1; is provided with screw-threads on its outer face for a portion of its length, as at i and the portion thereof adjacent the collar I is left plane'or straight, as at i for the reception of the arborhole of the circular saw which fits thereon,and is held in place by a collar, J, which has an interior screw-threaded portion that takes on the outer threaded end of the sleeve *5, said collar J sliding freely over the nut 6 that holds said sleeve in place.

It will be observed that the crank-arm G is free to rotate in its bearing in the sleeve E,to cause the outer end, on which is mounted the saw to be operated on, to describe a complete circle, or to move in the arc of a circle,

thus presenting the saw at any required:

angle to the anvil for hammering out inequalities in the surfaces thereof, and it will be further observed that the saw is detachably and rotatively mounted on the sleeve of the collar I, so that all the faces thereof can be brought under the hammer and on the anvil for operation.

To detach the saw it is only necessary to disengage the nut or collar J and slide the same from engagement with the sleeve i of the collar I. Aspace is left between said collars to permit inequalities in the surfaces of said saw near the arbor-hole thereof to be readily detected and subjected to the action of the hammer in the hands of the workman. The shaft or arbor H is detachably secured to the crank-arm and can be readily removed in case of breakage and can be adjusted, the lower end being threaded.

K designates a collar loosely fitted over and I free to slide laterally or vertically on the tubular sleeve 0, and carrying an adjusting-screw,

k, bearing against the outer vertical face of said sleeve 0 to hold the said collar at any desired adjustment on said sleeve 0.

L designates a collar, also loosely fitted over and free to slide on the sleeve 0, and arranged above and resting on the collar K, and sliding or moving therewith when it is adjusted, said collar L having a bearing or sleeve, Z, cast therewith and arranged at right angles thereto in a horizontal plane to receive a shaft or arm, M, which passes therethrough and is held in position therein by an adjusting bolt or screw, Z. The shaft M is thus free to be adjusted back and forth in said sleeve or bearing Z to project at different lengths, and is arranged below the plane and out of a vertical line of the saw-supporting arm or shaft, and carries a vertically adjustable rotating supporting device for the outer edge or periphery of the saw blade, the'particular construction of which I will now proceed to de- Scribe.

N designates a vertical shaft having a hand wheel or lever, n, rigidly secured thereon for its convenient manipulation, a lower screwthreaded end, n,which works in a correspondingly-threaded socket, 14?, formed in the outer end of the shaft M, and an upper reduced end or pintle, M, which provides a bearing for a hollow socket-piece, 0, adapted to fit said pintle, and rigidly secured to a horizontal crossbar, 0', having vertical standards 0 at its outer end, in which are secured brackets 12 at their upper ends, and carrying friction rolls or wheels P,which are mounted on pins or shafts bearing in said brackets, and are free to rotate thereon and bear against the lower face of the saw mounted in the crank-arm G.

It will be observed from the foregoing description, taken in connection with the drawings, that the shaft M is adjustable vertically when the sleeve 0 is adjusted, that it is adjustable independently of said sleeve 0 when the collar K is adjusted, that it is free to move around the standard and sleeve, or, in other words, to rotate in a horizontal plane around said standard, and that it can be adjusted 1aterally in and out of the sleeve Z to bring the friction-rollers P nearer the outer edge or periphery of the saw, and that the shaft N is capable of adj ustment vertically, and the crossbar 0 is free to rotate in a, horizontal plane thereon.

The operation of my invention is obvious.

from the foregoing description, taken in connection with the drawings.

The saw is secured on the sleeve zof the collar I, and the collarJ is fitted on said sleeve to prevent the saw from displacement. quired, the sleeve 0 is adjusted so that the saw will be onthe plane of the anvil, and the supporting device N O P and shaft M arcadjusted so that the saw is supported at its periphery or outer edge when the device is ready for use. The inequalities in the saw-surface If reare successively brought onto the anvil (to be hammered) by means of the several adjustments of the crank-arm, and when one surface of the saw has been finished it is turned over by revolving the crank-arm or causing the outer end thereof to describe a complete circle or revolving said shaft in its bearing in the tubular bearing or sleeve E, which is also capable of adj ustment, as described hereinbefore, to enable the saw to be presented at varying angles to the anvil.

Various slight changes in the form and proportions of parts and details of construction may be made without departing from the principle or sacrificing the advantages of my invention, the essential features of which have been fully pointed out and will be readily understood from the foregoing description, taken in connection with'the drawings.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a machine of the class described, the combination of a fixed standard, A, a sleeve, 0, mounted thereon, and a saw-supporting arm, G, mounted in a bearing secured to the sleeve, and adapted to be rotated in a vertical plane to present the saw at different angles to an anvil, substantially as described.

2. In a machine of the class described, the combination of a fixed standard, A, a sleeve, C, mounted thereon, and a saw-supporting arm, G, rotatably mounted in a tubular bearing adjustably secured to the sleeve, substantially as described.

3. In a machine of the class described, the combination, with a fixed standard, A, a vertically-adjustable sleeve, 0, mounted thereon, a tubular bearing, E, pivoted to the sleeve, and a saw-supporting arm, G, rotatably mounted in said tubular bearing, substantially as described.

4. In a machine of the class described, the combination of a standard, A, a verticallyadjustable sleeve, 0, mounted thereon, a supporting-sleeve, E, pivotally connected to said adjustable sleeve, and a saw-supporting arm, G, mounted and free to rotate in said supporting-sleeve, substantially as described.

5. In a machine of the class described, the combination of a fixed standard, A, a sleeve, 0, mounted thereon, a bearing-sleeve, E, pivotally and adjustably connected to said sleeve 0, and a saw-supporting arm journaled in said pivoted sleeve E and free to rotate therein, substantially as described.

6. In a machine of the class described, the combination of a standard, a vertieallyadjust able sleeve mounted thereon, a hollow bearing or sleeve pivotally and adj ustably connected to said adjustable sleeve, and a saw-supporting shaft or arm mounted in said pivoted sleeve or hearing and adapted to be rotated in a Vertical plane therein, substantially as described.

7. The combination of a fixed standard, a vertically-adj ustable sleeve thereon, a bearing pivotally connected to the sleeve, a saw supporting crank-arm rotatably mounted in the bearing, and devices for detachably connecting the saw to the supporting-arm, substantially as described.

8. In a machine of the class described, the I in said pivoted tubular bearing or sleeve, substantially as described.

9. In a machine of the class described, the combination of a standard, A, a verticallyadjustable sleeve, 0, mounted thereon, a sawcarrying arm, G, mounted in a bearing secured to the sleeve 0, and a supporting-arm, M, mounted on a bearing secured to the sleeve 0 below the plane of the saw-carrying arm G, and having devices for supporting the saw at its edges, substantially as described.

10. In a machine of the class described, the combination of a supporting-standard, a vertically-adjustable sleeve, 0, mounted thereon, a saw-supporting arm. G, mounted in a bearing secured to said sleeve 0, and a vertically-adj ustable independent supporting-arm mounted in a bearing secured to the adjustable sleeve 0, below the plane of the saw-supporting arm, substantially as described.

11. In a machine of the class described, the combination of a standard, A, a sleeve, 0, mounted thereon, a bearing, E, pivotally connected to the sleeve 0, a saw-supporting arm, G, rotatably mounted in the bearing, asupporting-arm, M, arranged below the arm G, and a bearing, L, for said arm M, whereby the latter arm may be adjusted vertically and horizontally independently of the saw-supporting arm, as set forth.

12. In a machine of the class described, the combination of a standard, A, an adjustable sleeve, 0, a tubular bearing, E, pivoted to the sleeve 0, a saw-supporting arm journaled in the bearing E, a supporting-arm, M, mounted in a bearing adj ustably secured on the sleeve O, and a vertically-adj ustable standard, N, carrying frictional rolls and mounted in the arm M, substantially as described.

13. The combination of a standard, a vertically-adj ustable sleeve mounted thereon, a hollow bearing or sleeve pivotally and adj ustably connected to said sleeve 0, a saw-supporting crank-arm rotatably mounted in said hollow sleeve E, a vertically-adjustable supportingarm arranged out of the plane of the crank arm, a bearing, L, for the said supportingarm, and an adjustable standard, N, carrying independent friction-rolls, substantially as described.

14. The combination of a standard, a vertically-adjustable sleeve mounted thereon, an adjustable bearing, E, pivotally secured to the adjustable sleeve 0, a crank-arm journaled in said bearing E, a vertically and laterally adjustable supporting-arm arranged below the plane and out of, the vertical line of the crankarm, and a bearing, L, in which the supporting-arm is mounted, substantially as described.

15. The combination of a fixed standard, A,

v a sleeve, G, mounted thereon, crank-arm G, a

a reduced threaded end, a'collar, I, having a sleeve loosely mounted on said shaft, and bearing against the abutment thereof, a nut, i fitting the threaded end of the shaft and bearing against the sleeve, and a collar, J, fitting a thread on the sleeve, substantially as described.

17. The combination of a standard, A, an

adjustable sleeve, 0, mounted thereon, an adjustable bearing, E, secured to the sleeve, a saw-supporting arm, G, journaled in the bearing, the supporting-arm M, a vertically-adjustable shaft, N, mounted thereon, and a horizontal cross-bar rotatably mounted on the shaft and carrying independent friction-rolls, substantially as described.

' 18. The combination of a fixed standard, A, a sleeve, 0, a crank-arm, G, journaled in a bearing secured to the sleeve, thesupportingarm M, a shaft, N, having a threaded portion and a band-wheel adj ustably mounted in said arm, a horizontally-rotatable bar, 0, loosely mounted on a pintle of said adjustable shaft, and standards 0 carrying frictional rolls and secured to said rotatable bar, sub-

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