US1454690A - Filing machine - Google Patents

Description

May 8, 1-923. 1,454,690

F; A. REINHARD FILING MAQHINE Filed March 16 1920 2 Sheets-She'et l May 8, 1923.

F. A. REINHARD FILING MACHINE 2 Shets-Sheet 2 Filed March 16, 1920 VE/V T5 ,4

MM WW Patented May 8, 1923,

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FRANK A. REINHARD, OF WILMINGTON, MASSACHUSETTS, ASSIGNOR TO BOSTON TOOL AND MANUFACTURING COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

FILING IMACHINE.

Application filed March 16, 1920. Serial No. 366,375.

To all whom it may concern:

Be it known that I, FRANK A. REINHARD, a citizen of the United States, residing at Wilmington, in the county of Middlesex and State of l/lassachusetts,-have invented certain Improvements in Filing Machines, of which the following description, in connection with the accompanying. drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures. D

This invention relates to power driven filing machines of the character used in ma-.

chine work for the purpose of filing. cutting dies, machine parts, and the like. In the filing of many parts of the general character just mentioned it is preferable to use a rotary file for performing the greater part of the work, but a file of this character can.

not be used in the corners and consequently in such places it is necessary to use a reciprocating file. It is the chief obyect of the present invention to devise a fil ng machine of the power driven type in whlch the file can be given either a reciprocating or a rotary motion, as desired, and in which the change from one of these motions to the other can be readily made- The invention also aims to devise a machine of this character which will be of simple design and economical to manufacture, but which will be sturdy and substantial in construction and capable of giving long service.

The nature of the invention will be readily understood from the following description when read in connection with the accompanying drawings, and the novel features will be particularly pointed out in the appended claims.

Referring now to the drawings,

Figure l is a vertical, central. cross sectional view of a machine embodying the invention in the format present preferred;

Fig. 2 is a side elevation of the machine shown in Fig. 1;

Fig. 3 is a horizontal cross sectional View of the machine shown in Figs. 1 and 2, showing in plan the more important parts of the operating mechanism, and showing the relationship of the parts when they give the file a reciprocating motion;

Fig. 4: is a view similar to Fig. 3 but showing the operating mechanism adusted to rotate the file;

Fig. 5 is a vertical cross sectional view substantially on the line 55, Fig. 3;

Fig.6 is a vertical cross sectional View substantially on the line 6-6, Fig. 4:;

Fig. 7 is a vertical cross sectional view substantially on the line 77, Fig. 3, looking in the direction of the arrows; and

Fig. 8 is a vertical cross sectional view substantially on theline 88, Fig. 4, lookmg in the direction of they arrows. I The machine shown in' the drawings comprises a vertical shaft 2, (Figs. 1 and 2),

mounted to rotate in a-frame 3 and having a file holderv 4 at the upper end thereof. A file 5 of any desired shape may be mounted in the holder 4 and securedtherein by a set screw 6. a I

For the purpose of imparting arotary motion to the shaft 2 it has mounted fast thereon a bevel gear 7 whichis adapted at certain times to mesh with the bevelled teeth on a gear 8 mounted fast. on the inner end of a shaft 9 which telescopes within a sleeve or tubular shaft; 10 carrying a stepped driving pulley 11. So long as the gears 7 and 8 are held in mesh with each other and the pulley 11 is holder 4; will be rotated.

As above stated, however, it is frequently necessary or desirable to impart a reciprocatln motion to the file, and for this purpose the shaft 2 is mounted to rotate in a block or cross-head 12, the shaft and crosshead, however, being held against relative longitudinal movement by the gear 7 and a collar 13 secured to the shaft 2 above the cross-head. This cross-head carries a cylindrical block 14, Figs. to 8, which engages a groove in a cam 15 mounted eccen-.

trically on the face of a gear 16 mounted fast on a shaft 17 which is coaxial with, but independent of, the driving shaft 9. For the purpose of driving the shaft 17, a counter shaft 18 is located below and at one side of the shafts 9 and 17 and carries two pinions designated at 19 and 20, respectively, the pinion 19 being designed to mesh with radial teeth formed on the periphery of the gear 8, while the pinion 2O meshes with and drives the gear16. It is evident thatthis mechanism will impart a reciprocating vmotion to the shaft 2 In order to prevent the cross-head 12 from turning on the shaft 2, a pin 21 projects driven, the file therefrom into a vertical slot 22, Fig. 1, formed in a plate 23, Figs. 5 and 6, which is secured fast to the frame 3 of themachine.

It is obvious that when the gear 8 isbeing used to rotate the pinion 7 and consequently the shaft 2, it cannot be used also to reciprocate this shaft, and for the purpose of interrupting one of these motions and initiate the other, the gear .8 is mounted to slide out of mesh with the bevel gear 7 and into mesh with the pinion 19, or vice-versa. That is, the shaft 9 which telescopes within the hollow driving shaft 10 has a pin 2 1 extending therethrough and slidingin a slot 25, Fig. 1,'formed in the hollow Sllillt, 10.

This pin extends not only through the slot but also'into a collar 26 which rotates with the shafts'9 and 10 and has a peripheral groove 27 formed therein to receive a pin 28 projecting eccentrically from-a disk fast 'on a stud 29 which projects through a boss or bracket 30 secured to one side of the frame 3, and carries a handle 31 by means of which the stud 29 can be turned to rotate the pin 28 and thus move the collar 26 and the gear8 axiallyof the shaft 10. The handle 31 is swung through an arc of 180 and the pin 29 is spring-pressed inwardly to en gage in notches at the extremities of its throw tohold it in either of its operative positions. A collar 32 on the shaft 10 bears against the upturned'end ofa bracket 32' se cured" to the frame and cooperates with the pulley 11 to prevent any axial movement of the shaft 10. I

Assuming that the gear 8, which drives the-train of gears throughwhich the reciprocating motion of the" shaft 2 is effected, is in mesh with the pinion 19 and thus is driving this train of gears,'it obviously is desirable to have the gear 7 positioned at the proper elevation to mesh with the bevelled teeth on the gear 3 prior-to effecting this shifting movement ofthe'latter gear. For this purpose a disk or wheel 33 is mounted fast on the outer end of the shaft 1? and has a hole as drilled,therethrough to register with the end of a rod 35 which is mounted to slide in guide holes formed in the machine frame and has its inner end positioned in the groove 27 in the collar 26, as shown in Figs.

'1, 3 and 4t. Consequently, preliminary to making-the shift above described, the disk 33 is turned until the line 36,-Fig. 2, registers with the stationary pointer 37 which brings the hole 34 into alinement-with the end of the rod 35, whereupon the handle 31 is op- 'When the power is again turned on the machine the file holder will be rotated, as above "described. From the foregoing it will be seen that part of the mechanism that reciprocates the shaft is utilized to hold this shaft at the proper elevationto.-make the pinion 7 mesh with the gear 8.

The sliding movement of the rod .35 is utilized also to move a detent or catch 38 into and out of engagement with the'teeth of the bevel gear 7. This detent consists of a spring secured fast to the cross-head 12, having its lowerend turned inwardly and bevelled to engage the teeth of the gear 7, the spring being so tensioned that normally it holds its point or toe outof engagement with the gear. A notch 39 isformed in the rod 35, as shown in Figs. 3: and 4, in such a position that when-the gear 8 is in mesh with the gear 7 and rotates the shaft 2, the

detent 33 will rest in the notch and will be out of engagement with the gear, but when thisrod is moved in the opposite direction to initiate the reciprocatingmovement of the tool holder, the bevellediwallof the notch forces the detent into engagement with the gear 7 and thus prevents this gear,sand consequently the shaft 2, from rotating while the shaft is being reciprocated.

For the purpose of enablingxtheworkmanto guide the work. conveniently ,while it is being filed, a tableelO is supported by posts 41 and 42, Figs.1{and.2,a-nd is provided with a central aperture through which the file projects. The post 41 :may be adjusted vertically and held in its adjusted position by a thumb screw 43, and the table is pivoted to the upper end of this post so that:=it can be adjusted angularly. hen s0 ,adjusted it is clamped in its adjusted position by the-thumb screw 44. The post 42 merely bears against thelower face of the table. A spring e5 acts on the l0\V8l;i611Cl of this post to hold it normally in engagement withi the table and it may be clamped in this position by a thumb screw 16.

It will now-be understood that the machine provided by this invention is very simple in'construction, thatit is f18fl 0II1 delicate or fragile parts which would be liable to break or wear out rapidly, :and that the change from. a reciprocating to a rotary motion, or vice-versa, of the'ii'le maybe effected very easily and conveniently.

While I have herein shown and described the best embodiment of the 1 invention of which I am at present aware, itwill be understood that this embodiment may-be modified in many particulars without departing from the spirit or scope of'this invention.

/Vhat is claimed as new is:

1. Afiling'machine comprising, in combination, a file holder, a rotary shaft supporting said holder, a gear fast onsaid'shaft, mechanism including a train of' gears for vreciprocating said shaft, and means for relatively moving said gearand one of the gears of said train to interrupt the operation of the train and to bring said gears into mesh with each other, whereby the reciprocating motion of said shaft is interrupted and a rotary motion is transmitted to said shaft.

2. A filing machine comprising, in combination, a file holder, a rotary shaft supporting said holder, a gear fast on said shaft, mechanism including a train of gears for reciprocating said shaft, and means for moving one gear of said train to disconnect it from the part of the train that it drives and to connect it with the gear on said shaft, whereby the reciprocating motion of said shaft is stopped and a rotary motion is imparted thereto.

3. A filing machine comprising, in combination, a file holder, a rotary shaft supporting said holder, a bevel gear fast on said shaft, mechanism including a train of gears for reciprocating said shaft, said train includin a bevel gear having teeth to mesh with the aforesaid bevel gear and peripheral teeth to engage and drive another gear of said train, and means for relatively moving said bevel gears to enable them and said mechanism to impart to said shaft either a rotary or reciprocating motion, as desired.

4. A filing machine comprising, in com-' bination, a file holder, a rotary shaft supporting said holder, a bevel gear fast on said shaft, mechanism including a train of gears for reciprocating said shaft, said train including a bevel gear having teeth to mesh with the aforesaid bevel gear and peripheral teeth to engage and drive another gear of said train, means for effecting a relative shifting movement of said bevel gears to interrupt the operation of said train and to bring said bevel gears into mesh with each other, or 'vice-versa, whereby said parts are operative either to rotate or reciprocate said shaft, as desired, and connections operated by said means during the shifting to initiate the reciprocating action of said shaft to lock said shaft against rotative motion.

5. A filing machine comprising, in combination, a file holder, a rotary shaft sup porting said holder, a crosshead in whichsaid shaft rotates, gear driven mechanism adjustable at will either to rotate said shaft or to act through said crosshead to reciprocate the shaft, and means automatically operated by the adjustment of said mechanism to lock said shaft against rotation or to unlock it,,depending uponthe nature of said adjustment.

6. A filing mechanism comprisingfln com-- bination, a file holder, a rotary shaft supporting said holder, a cross-head in which said shaft rotates but fixed against'movement longitudinally of the shaft, a train of gearing connected with said cross-head to reciprocate it, and thereby reciprocating the shaft, a gear on said shaft, means for shifting one gear of said train out of mesh with its companion gear of the train and into mesh withsaid gear on the shaft, or'vioeversa, whereby said shaft is either rotated or reciprocated, as desired, means whereby a positioning movement of said shaft and the gear thereon may be made preliminary to effecting said shifting movement, a detent arranged to engage the gear on said shaft, and means for moving said detent into engagement with the latter gear upon producing said shifting movement to reciprocate said shaft, and for moving said detent out of engagement with said gear when an opposite shifting movement is produced.

7. A filing machine 'comprising,in combination, a vertical shaft, a file holder on said shaft, a horizontal driving shaft, a

bevel gear fast on said driving shaft, another bevel gear rotating withsaid driving shaft for driving the bevel gear on said vertical shaft, a counter shaft, gears on said counter shaft, -means, including a hand-operated member, for shifting the gear on said driving shaft out of mesh with the bevel gear from a reciprocating to a rotary motion of said vertical shaft.

In testimony whereof I have signed my name to this specification. i H

' FRANK A. REINHARD.

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