US1140841A - Cutting mechanism. - Google Patents

Description

E. C. MORGAN.

CUTTING MECHANISM.

APPLICATION FILED JUNE27. 1910.

Patented May 25, 1915.

2 SHEETS-SHEET 1.

,1 MW mv mm Attorney Witnesses THE NORRIS PETERS 60.. FHOTOLITHQ. WASHINGTON, D. c

E. C. MORGANL CUTTING MECHANISM.

APPLICATION FILED JUNE 27. 1910.

Patented May 25, 1915.

2 SfiEETS-SHEET 2 Witnesses.-

THE NORRIS PETERS CO4. PHOTD-LITHO.. WASHINGTON, D. a:v

Afro whey,

EDMUND C. MORGAN, 0F MORGAN PARK, ILLINOIS.

CUTTING MECHANISM.

Application filed June 27, 1910.

To all whom it may concern Be it known that I, EDMUND C. MORGAN, a citizen of the United States, residing at Morgan Park, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Cutting Mechanism, of which the following is a specification.

This invention relates to improvements in cutting mechanisms, especially adapted for cutting metal, wood, or other materials, and has for its primary object to provide an improved construction, combination and arrangement of parts in devices of this nature.

More specifically, the main object of the present invention is to provide an improved cutting mechanism which will be rapid and eflicient in its action.

Another object is to provide improved means for sharpening the cutters which means will be operative while the machine is in motion, and without removing the cutters from the machine, as also shown by my co-pending application, Serial No. 569,172, in which the means for sharpening the cutter is mounted on the same arm as the cutter itself.

Other and further objects will appear in the specification, and be more specifically pointed out in the appended claims, reference being had to the accompanying drawings exemplifying the invention, and in which Figure 1 is a side elevation of a cutting mechanism provided with my improvements. Fig. 2 is a top plan view of the same. Fig. 3 is a section on the line IIIIII of Fig. 1.

Referring more specifically to the exemplification shown in the drawings, the base member 10 of the machine has mounted thereon in any suitable manner, but preferably by being cast integrally therewith, a standard 11, which standard is adapted at its upper end to have the material securely held in suitable position to be operated upon.

Slidably mounted upon the base member 10 is a base frame 12 of a carriage, said carriage being provided with projecting portions 18, 14 and 15. Said projecting portions 14, 15 provide a pair of overhanging bearings for rotatably mounting a shaft 16, said shaft having keyed thereto at its upper end and beneath the overhanging portion of the bearing member 15, a cutter bar 17 having a hub portion 18. The hub portion Specification of Letters Patent.

Patented May 25, 1915.

Serial No. 569,171.

18 is provided with integral lugs 0r projections 19.

A radially projecting arm or support 20 is pivoted at one end upon the shaft 16 to swing freely about said shaft, and is provided at its outer end with a laterally projecting support 21 having a vertically projecting pin 22 which is preferably rigidly secured thereto in any suitable manner. Also mounted on the outer end of the arm 20 and preferably rigidly connected thereto in any suitable manner is an upright journal or shaft 23. Rotatably mounted on said upright shaft 23 is a grinding frame or grinder supporting arm 24 provided with an elongated hub portion 25 having an eccentric portion 26 rigidly connected thereto and preferably cast integrally therewith, the lower face of said eccentric 26 being in slidable engagement with the upper face of the arm 20.

Cast integrally with the grinding frame 24 is a segmental friction wheel or cam 27, with which is rigidly connected a hand lever 28 whereby its movement may be controlled.

A flexible connection or spring 29 is connected at one end to the vertical pin 22, and at its other end to the hand lever 28 in such a way as to impart to the grinder arm 24 a tendency to rotate in a counter clock-wise direction.

A reciprocable rod or latch 80, which is slidably mounted upon the arm 20, is adapted to be engaged at its inner end by either one of the lugs 19 on the hub portion 18 of the cutter bar 17, so as to force the swinging arm 20 to travel with the cutter bar during certain periods, in which it is desired to grind the cutters.

In order to provide suitable grinding means, the grinder-bearing arm or frame 24 is provided with radially projecting arms or cheeks 31, 31, in which is mounted a spindle 32 having keyed thereto a grinder wheel 33, which, when the parts are in the posi tion shown in Fig. 2, is pressed resiliently against the outer end of the cutter bar 17 by the spring 29.

Keyed to the other end of the spindle is a friction wheel 34, which is in frictional engagement with a second friction wheel 35 journaled upon the elongated hub portion 25 of the grinder frame 24. The friction wheel 35 is provided with an offset integral wheel portion 86, which is in frictional engagement with an arcuate cam bar 58 forming the upper end of the projecting portion 13 of the base member 12 of the carriage. The outer end of the latch or bar 30 is provided with a rectangular loop (see Fig. 3),

I extends in a spiral about the bearing boss of the support 14, is connected at one end to a boss or lug 40 depending from the swinging arm 20, and at its other end is secured to the boss of said support 14. Said spring 39 is so connected as to press the arm 20 resiliently against the lug 38 on the bearing support 15 when it is not forced therefrom'by the cutter bar 17.

Keyed to the lower end of the shaft 16 is a bevel gear 41 with which meshes a bevel pinion 42 rigidly secured in any suitable manner to the shaft 43 of a motor 44.

Pivotally mounted at 45 upon the projecting portion 13 of the base member 12 is a resiliently mounted arm or lever 46, which projects substantially vertically and is provided with an inwardly projecting portion 47 for carrying a cam bar 48 with which the segmental cam 27 of the grinder arm 24 is in frictional engagement at certain portions of the movement of the swinging arm 20.

In order to provide for a resilient pressure between the segmental cam 27 and the cam bar 48, the lever 46 is forced resiliently toward the projecting portion 13 by means of a spring 49 carried by a projecting pin 50 threaded at its outer end to receive a nut 51 which holds the spring 49 in position by a washer 52 interposed therebetween. Crank arm 53 on the outer end of a screw feed 54, which is rotatably mounted in a bearing or boss 55, serves to feed the carriage to and from the work-supporting standard 11 by having its inner threaded end 56 threaded within the base member 12 of said carriage.

The operation of the device will now be understood. The swinging arm or support 20 is normally held in initial position adjacent the bearing member 15 by means of the spring 39 and with a lug 57 formed on the projection 21 of said swinging arm 20 bearing against the lug 38 on said bearing member 15. WVhen one of the lugs 19 engages the inner end of the latch or bar 30, the swinging arm 20 is forced from its'initial position around into the position shown in Fig. 2. During this swinging movement, the friction wheel portion 36 of the friction wheel 35 is brought into engagement with the segmental cam bar 58 by means of which the friction wheel 35 is rotated and drives the friction wheel 34, thus rotating the grinder wheel 33, while it is held against the cutter by the spring 29, as shown in Fig. 2. Simultaneously the eccentric cam 26 is being rotated (see Fig. 3) to reciprocate the bar or latch 30 until shortly after the parts have assumed the position shown in'Fig. 2, when said bolt or latch 30 is withdrawn from engagement with the lug 19 and permits the cutter bar 17 to rotate past the swinging arm 20. Near the end of the swinging movement of the arm 20, the segmental cam 27 of the grinder arm 24 frictionally engages the cam bar 48, which causes the grinder arm 24 to swing the grinder wheel 33 out of the pathof the cutter bar 17 Immediately thereafter, the parts resume their normal initial position under the action of the spring 39, which returns the arm 20 to initial position, and the spring 29, which returns the grinder arm 24 to initial position.

hat I claim is:

1. The combinationwith a plurality of cutters, of means for continuously operating said cutters, sharpening means for said cutters, means for automatically operating said sharpening means while a cutter of said cutting apparatus engages therewith and'is in motion, and means for automatically throwing said sharpening means out of engagement with a moving cutter and returning the sharpening means to initial position for operating on the neXt succeeding cutter while the cutter just acted on continues toward its work.

2. In acutting mechanism, the combination with a moving cutter, of an arm mov able with the cutter and carrying sharpening means movable relatively to said arm into and out of sharpening engagement with the cutter, and means operated by the movement of said arm for operating'said sharpening means.

3. In a cutting mechanism, the combination with a moving cutter, of 'a swingingly mounted arm, sharpening means carried by said arm and movable into and out of sharp ening engagement with the cutter relatively to said arm when said arm and cutter are moving in the same direction, said arm be- 1ng provlded with means for returnlng it to arm, said means being movable by said arm in a path adjacent the path of said cutter, means for moving the sharpening means into engagement with said movable cutter, and further means interposed in the path of said sharpening means for removing the last said means out of engagement with the cutter.

5. In a device of the character described, the combination with a movable cutter, of grinding means partaking of a portion of the movement of said cutter, means for holding said grinding means in engagement with the cutter during said portion of movement of the cutter, and means for removing the grinding means from the cutter at the end of said portion.

6. In adevice of the character described, the combination with a revolving cutter, of grinding means swingingly mounted to partake of a portion of each revolution of the cutter, and a stationary guide cooperating with said grinding means to operate the same during the progress of said portion of each revolution.

7. In a device of the character described, the combination with a cutter revolving about an axis, a sharpening device oscillable in an arc about said axis and adjacent the path of movement of said cutter, said de vice comprising a grinder oscillable about an axis traveling with said arm, said grinder being normally in position to grind the cutter when it travels adjacent said arm, and means for moving the grinder away from the cutter after each grinding operation.

8. In a device for the purpose described,

the combination with a cutter revolving about an axis, of an arm oscillable in an arc concentric with said axis, a second arm pivotally mounted on the first said arm, a grinder carried by the second arm, means for locking the first said arm to the cutter to travel therewith, and means for oscillating the second arm to throw the grinder into and out of grinding relation with the cutter.

9. In a device for the purpose described. the combination with a revolving cutter, of an oscillable arm, said cutter and arm being movable about the same axis, a second arm pivotally mounted on the first said arm, a grinder carried by the second arm, releasable means for locking the first said arm to the cutter to travel therewith, means for automatically operating said releasing means after a predetermined angular movement of the cutter, and means for oscillating the second arm to throw the grinder into and out of grinding engagement with said cutter.

10. In a device for the purpose described, the combination with a revolving cutter bar provided with a cutter, of an arm oscillable about the revolving axis of said bar, means for normally retaining said arm in a position of rest, means carried by the bar for engaging said arm to move it from its initial position, a second arm pivotally mounted on the first said arm, a grinder carried by the second arm, and means for oscillating the second arm to throw the grinder into and out of grinding relation with the cutter, said means for locking the first said arm to the cutter bar being releasable to permit said arm to return to initial posi tion after each grinding operation.

11. In a device for the purpose described, the combination of a stationary member, a revolving cutter bar provided with a cutter, an angularly oscillable arm, resilient means for holding the arm at rest against said stationary member, releasable means interengaging between the cutter bar and said arm for moving said arm from its initial position of rest, a second arm mounted on the first said arm and oscillatable relatively thereto, a grinder carried by the second arm and normally in grinding contact with said cutter when the cutter bar and arm are moving together, a cam rigid with the second arm, and means carried by the stationary member'for frictionally engaging said cam to move the grinder out of contact with the cutter.

12. In a devicefor the purpose described, the combination of a revolving cutter bar provided with a lug, a revoluble arm, a springretained latch carried by said arm and normally in position to be engaged by said lug as said cutter bar is revolved, a grinding device mounted on said arm, means on the arm for moving said latch out of engagement with the lug, and means for operating the last said means.

13. In a device of the character described, the combination of a revolving cutter bar provided with a lug, a revoluble arm, a spring-retained latch carried by said arm and normally in position to be engaged by said lug, as said cutter bar is revolved, a grinding device mounted on said arm, a cam movement for operating said latch to release the arm from the cutter bar, and means for operating said cam movement.

14. In a cutting mechanism the combination of a rotary shaft, a cutter bar provided with a hub portion keyed to said shaft and a lug on said hub, an arm freely pivoted on said shaft, means for resiliently holding said arm in initial position, a grinder oscillably mounted on said arm and adjacent the outer end thereof, a latch carried by said arm and normally in position to be engaged by the lug on said hub, and means for operating said latch to release said arm, said means being operated by friction with a part relative to which it moves.

15. In a cutting mechanism, the combination of a rotary shaft, a cutter bar having a hub portion provided with a lug keyed to said shaft, an arm swingingly mounted on said shaft, means for resiliently holding said arm in initial position, a grinder oscillably mounted on said arm, a latch carried by said arm normally in position to be engaged by the lugs on said cutter bar, a cam movement for withdrawing said latch from engagement with said lug, a pulley rigid with said cam, and a cam bar in frictional engagement with the pulley whereby said pulley is rotated to operate the cam movement.

16. In a cutting mechanism, the combination of a rotary shaft, a cutter bar keyed thereto, a support freely revoluble about said shaft, means for locking the arm to said cutter bar intermittently, a grindercarrying arm oscillably mounted on said support, said arm being provided with a rigid cam portion, and a cam bar engaging said cam to oscillate said arm into and out of the path of movement of said cutter bar.

17 In a cutting mechanism, the combination of a rotary shaft, a cutter bar keyed thereto, a support freely revoluble about said shaft, means for locking the arm to said cutter bar intermittently, a grindercarrying arm oscillably mounted on said support, said arm being provided with a rigid cam portion, and a cam bar engaging said cam to oscillate said arm into and out of the path of movement of said cutter bar, said cam bar being resiliently mounted.

18. In a cutting mechanism, the combination of a rotary shaft, a cutter bar keyed thereto, a support swingingly mounted on said shaft, means for locking an arm to said cutter bar intermittently, a grinder-carrying arm oscillably mounted on said support, said arm being provided with a rigid cam portion, a cam bar for engaging said cam to oscillate said arm, said cam bar being resiliently mounted, and means for adjusting a resilient tension on the cam bar.

19. In a cutting mechanism, the combination with a moving cutter, of a swingingly mounted support, sharpening means carried by said support and movable into and out of sharpening engagement with the cutter and relative to 'said support when the support and cutter are moving in the same direction, said support being provided with means rendered active by the movement of the support with the cutter for returning the support to initial position when released, and means for automatically releasing said sharpening means from engagement with the moving cutter to permit the return movement of the sharpening means.

20. In a cutting mechanism, the combination with a moving cutter, of a swingingly mounted support, sharpening means carried by the support and movable into and out of sharpening engagement, with the cutter and relative to said support when said support and cutter are moving in the same direction,

trolled by the movement of the cutter for automatically releasing said sharpening means from engagement with the moving cutter to permit the return movement of the support. p a r 21. In a device for the purpose described, the combination with a movable cutter, of grinding means partaking of a portion of the movement of the cutter, means for hold ing said grinding means in engagement with the cutter during said portion of movement of the cutter, means for removing the grinding means from the cutter at the end of said portion, and means for returning the grinding means to its original position.

22. In a device for the purpose described, the combination with a movable cutter, of

grinding means partaking of a portion of the movement of the cutter, means for holding said grinding means in engagement with the cutter during said portion of movement of the cutter,means for removing the grind ing means from the cutter at the end of said portion, and means controlled by the movement of the cutting mechanism for returning the grinding means to its original position.

28. In a cutting mechanism, the combination with a moving cutter, of a movable support carrying a sharpening means adapted to'effect a sharpening of the said moving cutter, means for causing said movable support to travel with said moving cutter,

means foriautomatically releasing said mov able support from further travel with said moving cutter, and means for returning the support when thus released.

24. In a cutting mechanism, the combination with a moving cutter, o'f'a movable sup- 7 port carrying a sharpening means adapted to engage with said moving cutter, means for causing said movable support to travel with said moving cutter whereby motion is imparted to said sharpening means, thus efiiecting the sharpening of said moving outter, and means for causing the cutter to travel independently with respect to the support. 7

25. In a cutting mechanism, the combina tion with a cutter having a constant direction of movement, of a support having an oscillating movement and carrying a sharpening means adapted to engage withsaid moving cutter, means for causing said movable support to travel with said moving cutter during a portion of theomovement of the cutter whereby motion is imparted to said sharpening means, thus effecting, the sharpening of said moving cutter, means for automatically releasing said movable support from further travel with said movin cutter, and means for returning the support when thus released.

26. In a cutting mechanism, the combination with a cutter having a constant direction of movement, of a support having an oscillating movement and carrying a sharp ening means adapted to engage with said moving cutter, means for causing said movable support to travel with said moving outter, during a portion of the movement of the cutter whereby motion is imparted to said sharpening means, thus effecting the sharpening of said moving cutter, means for automatically releasing said movable support from further travel with said moving cutter, and additional means for returning the support when thus released.

27. In a device of the class described, the combination of a cutter having a constant direction of movement, grinding means mounted to partake of a portion of such movement of the cutt r, means whereby the movement of the cutter will impart such movement to the grinding means, means for releasing the grinding means with respect to the cutter, and means for returning the grinding means when thus released.

28. In a device of the class described, the combination of a cutter having a constant direction of movement, grinding means mounted to partake of a portion of such movement of the cutter, means whereby the movement of the cutter will impart such movement to the grinding means, means for imparting grinding operation to the said grinding means during its movement with the cutter, means for releasing the grindin means with respect to the cutter, and means for returning the grinding means when thus released.

29. In a device of the class described, the combination of a cutter having a constant direction of movement, grinding means mounted to partake of a portion of such movement, means for returning the grin l ing means when released, means whereby the movement of the cutter will cause the grinding means to move therewith and to create a tension on the grinder returning means. and means for releasing the grinding means with respect to the cutter.

30. In a device of the class described, the combination of a cutter having a constant direction of movement, grinding means mounted to partake of a portion of such movement, means for returning the grind ing means when released, means whereby the movement of the cutter will cause the grinding means to move therewith and to create a tension on the grinder returning means, and means for automatically releasing the grinding means with respect to the cutter.

31. In a device of the class described, the combination of a cutter having a constant direction of movement, grinding means mounted to partake of a portion of such movement, means for returning the grinding means when released, means whereby the movement of the cutter will cause the grinding means to move therewith and to create a tension on the grinder returning means, means for imparting a grinding motion to the said grinding means during its movement with the cutter, and means for releasing the grinding means with respect to the cutter.

In a device of the class described, the combination of a cutter having a constant direction of movement, grinding means mounted to partake of a portion of such movement, means returning the grinding means when released, means whereby the movement of the cutter will cause the grind ing means to move therewith and to create a tension on the grinder returning means, means for imparting a movement of the grinding means with respect to the cutter during its movement with the cutter, and means for automatically releasing the grindmeans with respect to the cutter.

33. The combination with cutting apparatus. of sharpening mechanism therefor, and automatic means operatedintermittently by power transmitted directly from said cuttion apparatus for operating said sharpen ing mechanism.

34. The combination with cutting apparatus, of sharpening mechanism therefor, and means for operating said sharpening mechanism while the latter is traveling with the cutting; apparatus.

35. The combination with cutting apparatus, of sharpening mechanism therefor, and means for automatically operating said sharpening mechanism during a period of travel of a cutter of said cutting apparatus returning from its work back toward initial position.

86. The combination with cutting apparatus, of sharpening mechanism therefor, and means for operating said sharpening mechanism at intervals automatically and while the cutting apparatus continues to travel.

37. The combination with cutting apparatus, of sharpening mechanism therefor, and means for automatically operating said sharpening mechanism by intermittently operating same while traveling through a predetermined arc.

38. The combination with cutting apparatus, comprising a plurality of radial cutters, of sharpening mechanism therefor, and means for operating said sharpening mechanism during predetermined intervals while the cutters are traveling toward cutting position.

39. The combination with rotary cutting apparatus comprising a plurality of cutters each traveling in a circle, of sharpening mechanism for said cutters, and means for causing said sharpening mechanism to act on each of said cutters in succession while the cutting apparatus is in operation.

40. The combination with cutting apparatus comprising a plurality of cutters following one another successively in the same path, of sharpening mechanism for said outters, and means for causing said sharpening mechanism to act on each of said cutters in succession while the cutters are traveling.

41. The combination with cutting apparatus, of sharpening mechanism therefor, means for automatically operating said sharpening mechanism while traveling with said cutting apparatus, and means for automatically throwing said sharpening mechanism out of operation.

42. The combination with cutting apparatus, of sharpening mechanism therefor, an oscillatable arm carrying said sharpening mechanism, and means for automatically moving said arm to operate said sharpening mechanism while traveling with said cutting apparatus.

43. The combination with cutting apparatus, of an abutment movable thereby, sharpening mechanism for said cutting apparatus, and means engaged by said abutment for operating said sharpening mecln nism.

44%. The combination with cutting apparatus, of an abutment moving therewith, sharpening mechanism operating by being engaged by said abutment, and means for automatically restoring the sharpening mechanism to initial position.

45. The combination with cutting apparatus, of a grinding device, means comprising a fixed member for operating said grinding device, and means for establishing opera-tive relation between said cutting apparatus and said grinding device.

46. The combination with cutting apparatus comprising a cutter, of a grinding wheel, means for establishing operative relation between said cutter and said grinding wheel, a rotatable member connected to said grinding wheel, a fixed member operatively connected to said rotatable member, and means for moving said grinding wheel bodily to effect the rotation thereof.

47. The combination with cutting apparatus, of sharpening mechanism therefor, automatic means for operating said sharpen ing mechanism, and resilient means for holding said sharpening mechanism in operative position. p r i .48. The combination with cutting apparatus, of a grinding device, means for automatically operatingsaid grinding device while the same moves with a cutterof said cutting apparatus, and means for resiliently holding said grinding device against thecut ter while operating thereon.

4-9. The combination with cutting apparatus, of a grinding wheel, mechanism for automatically operating said grinding wheel, and means for resiliently holding said grinding wheel against the cutter of said cutting apparatus while said grinding wheel is being operated.

50. The combination with a traveling cutter, of yieldingly supported means for sharpening the cutter, and automatic means for operatively connecting said sharpening means with said cutter.

51. The combination with cutting apparatus, of a grinding device, gearing for operating said grinding device oscillatable means for carrying said grinding device, mechanism for effecting movement of said oscillatable means and the operation of said gearing, and additional gearing for releasing said last-named mechanism and moving said grinding device to inoperative position.

52. The combination with cutting apparatus, of a grinding wheel, means comprising latch mechanism for moving the grinding wheel bodily with the cutting apparatus, gearing for automatically operating said grinding wheel while travelingwith the cutting apparatus, additional gearing for releasing the latch mechanism andat the same time moving the grinding wheel out of the path of travel of said cutting apparatus, and means for automatically restoring the grinding wheel to initial position.

In testimony whereof I -have signed my name to this specification, in the presence of two subscribing witnesses, on this 21st day of June'A. D. 1910.

EDMUND C. MORGAN.

WVitnesses:

CHARLES WV. MILLER, G. E; MoKINLnY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patent:

' Washington, D. G.

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