US650020A

US650020A - File-cutting machine.

Info

Publication number: US650020A
Application number: US73515699A
Authority: US
Inventors: William Mcclellan
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-10-30
Filing date: 1899-10-30
Publication date: 1900-05-22
Anticipated expiration: 1917-05-22

Description

No. 650,020. Patented May 22, I900.

W MGCLELLAN FILE CUTTING MACHINE.

(Apphcat 51 d Oct 30 1899) (No Model.)

HQ C min 'Miness s,

m: noRms mans c0. mo'rmlmm WA NITED STATES PATENT OFFICE.

WILLIAM MOOLELLAN, or CLEVELAND, orno.

FILE-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 650,020, dated lVIay 22, 1900.

Application filed October 30,1899. SerialNn.' Z35,156. on as.)

T0 aZZ whom, it may concern:

Be it known that I, WILLIAM MOCLELLAN, a

citizen of the United States of America, and a resident of Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in File- Cutting Machines, of which the following is a specification.

This invention relates to file-cutting machines; and it consists in certain new and useful improvements upon my former machine for which a patent was granted me May 1, 1883, and numbered 276,698. l

The objects of these improvements are to increase the adj ustability'of the several working parts and to greatly increase and facilitate the working and productions of the machine.

These improvements are enumerated as follows: first, theimproved construction of the guideways on the standard, in which the cutting-tool is supported and operated, whereby greater rigidity and precision of the cutting-tool are attained; second, in the addition of a presser-foot for holding down the blanks while being out; third, in the construction of the blank-holding bed, whereby two or more files may be cut at one and the same time; fourth, in providing, an eccentric pin or bolt for attaching the standard to the base-plate, whereby the standard may be readily and nicely adjusted relative to the work-holding bed; fifth, in providing a roller-.

bearing cam-pin in the tool-holding plunger for reducing friction and facilitating the operations of the cutting-tool.

The nature and operations of these improvements will fully appear from the subjoined description when considered in connection with the accompanying drawings, in which-- Figure 1 is a perspective view of my new file-cutting machine. Fig. 2 is a vertical sec tion through the center of the standard and bed of the machine. Fig. 3 is a detached View of 1 the standard, showing its rear side. Fig. 4 is a front side view of the standard, showing the new guideways. Fig. 5 is a detached View of the tool -holding plunger, showing its rear side and having the rollerbearing cam-pin and cam located in its chamher. foot.

. tric-pin Z).

Fig. 6 is a detached view of the presserh A is the base or bedplate of themachine, which supports all the working parts and which is secured upon a suitable foundation To the rear side of said base-plate is attached a standard B by means of aneccen- (Seen in Fig. 2.) Said pin consists of a screw having a long head oifset from the center line of the screw, upon which the standard is put, having its 'outer' end screw-threaded for the nut 11. This pin is screwed into the base and may be turned to change the position of its head to slightly raise or lower the standard for adjustingit relative to the base. Other bolts are also fixed in the base, which protrude through the segmental slots a a in the standard, by means of which the standard is adjusted and secured at the required angle to said base.

' O is a carriage which rides upon the bevel ways 0 c of the bed-plate and upon which the blanks are held for cutting. In the top sur face of the carriage is provided a semicircular plate D, resting in a semicircular groove, and d d are two smaller semicircular plates resting in grooves in the said plate D. Upon the small plates the blanks are laid for cutting. By this arrangement two or more blanks may be out at one and the same time.

On the side of the standard is provided a presser-foot, consisting of. a box E, in which the stem F of the foot is held. Between the ears 8 e on the lower end of the stem F is placed a block f, through which and the said ears is placed the stem of the presser-bar G, said bar being secured in the block f by setscrew g. On the side of the stem F is also made a lug F, through which is placed a setscrew g, which screws into the block f, by means of which the presser-bar G may be adj usted for equal bearing on the blanks.

H is a lever fulcrumed at the side of the base A and attached to the stem F of the presser- A in place by screws j .7 and they, together with the p ge areh ld n y the s de. platesK K, secured by nuts la la. By this construction a great advantage is gained over the old. As will appear, by removal of plates K K the plunger and gibs are easily taken, out of the box guides I I for replacement by others or otherpurposes without disturbing any of the other parts of the machine.

On the back of the standard is placed a shaft-bearing plate M, secured by meansof screws m m, throughslots, which permit said plate to be adjusted up or'down and screwed into the standard. At the lower end,of* plate M is formed a lug L, into which is screwed the set-screw Z, that is held int-he lug L. on

the; standard.

N is a shaft journaled in the beari-n g of the plate M, on the outer end of which are fixed the tight anda loose pulley nn'. On the in nerend of said shaft N is fixed a three.

pointed cam 0, having its revolutions, in the chamber of the plunger J, and by means of which said plunger receives its reciprocal the base plate A, having its bearings in brackets M" at the front cornersof said plate." Omthefright-hand end of said" feed-screwis put a bevel-gear S. On end ofplate A' are bearings for-a counter-shaft having a bevel- 5 pinion (notshown) meshing with the ears for operating the feed-screw. Ontheopposite end: of said counter-shaft is a grooved" pulley T, connected by belt 25 with a grooved. pulleyQ on the shaft N, by meansof which motion is transmitted to the feed-screw; f

U is a drop-nut pivotedin a bracket V on the ,frontside oi the carriage, whichengages with the feed-screw R and which in the operations of the machine automatically feeds the carriage, with the blanks, to the cuttingtool X in the lower endof the plunger J. At any time that the operator may desire he may release the drop-nut from its engagement with the feed-screw B, when a weight attached to the lower end of a rope Y, the opposite end of which is secured to the carriage, will quickly draw the carriage back to its original pqsition readyto receive new blanks for repeating the cutting operations.

Having described my invention, what I claim is- I t In a file-cuttingmachine thecombination 3 with the' file-blank' carriage, of the presserfoot mounted on the side of the standard B, and consisting of the stem F slidingly held =i-n the'box E, the ears e e on the lower end of said stem F, the block f between. saidiears, the presser-bar G inserted through said ears land. block, the set-screw g in the sideof the iblock for fastening. the bar GI therein, the lug @F on the stem F above the block 7, and the {adjusting screw 9' through said lug and iscrewed into thevbloclgand the lever H fulgcrumed to the side of the base A and pivotfally attachedto said stem F, as a means for E lifting thepresser-foot, alli arranged and comibi'ned' to operate asdescribedj.

Signed by me at Cleveland, Ohio, this- 27th ;day of October, 1899-.

v WILLIAM. MCCLELLAN.

'i NVitnesses:

GEO. W. TIBBITTS,

- CHARLES L. STOOKER.