US583882A - Excelsior-cutting machine - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

P. ABEL. EXCELSIOR CUTTING MAGHINB.

No. 588,882. Patented June 8, 1897.l

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(No Model.) 3 Sheets- Sheet 2. E. ABEL. EXCELSIOR CUTTING MACHINE.

' No. 583,882. Patented June 8,1897.

3 Sheets-Sheet 3` F. ABEL.

Patented June C, 1897.

EXCELSIOR CUTTING MACHINE.

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UNITED STATES PATENT OEEICE.

FRANCIS ABEL, OF ROSEDALE, KANSAS, ASSIGNOR TO THE KANSAS CITY EXCELSIOR MANUFACTURING COMPANY, OF KANSAS CITY, MISSOURI.

EXCELSIOR-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 583,882, dated June 8, 1897. Application filed September 22, 1896. Serial No. 66,634. (No model.)

To all whom t may concern.:

Be it known thatI, FRANCIS ABEL, of Rosedale, IVyandotte county, Kansas, have' invented certain new and useful Improvements in Excelsior-Cutting Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to excelsior-l'nachines; and it consists in certain novel and peculiar features of construction and combinations of parts hereinafter described, and pointed out in appended claim.

The object of the invention is to produce a machine of this character which is positive and reliable in operation and. comparatively simple and inexpensive of construction.

In order that the invention may be fullyv understood, reference is to be had to the said accompanying drawings, in which- Figure 1 represents afront View of an excelsior-machine embodying my invention. Fig. 2 represents a section taken on the line II II of Fig. 1. Fig. 3 represents, on an enlarged scale, a cross-section on the line III III of Fig. 1. Fig. 4represents, on an enlarged scale and in plan view, one of the switch-wheels and its engaging worm-wheel. Fig. 5 represents a rear view of the planing or cutting mechanism at one side of the machine, the guide-standardsbeingshowninsection. Fig. 6 represents a vertical central section of the same. Fig. 7 represents a horizontal section taken on the line VII VII of Fig. 5.

Referring to said drawings in detail, 1 designates the bottom, 2 the top, 3 the outer, and 4 the inner, standards of a strong and durable vertically-arranged framework, said parts being constructed, preferably, of channeliron. Journaled horizontally in the standards 4, near their upper ends, is a shaft 5, and mounted rigidly upon said shaft at its middle is a belt-wheel 6 and at its ends disks or wheels 7 and 8, provided at their outer sides and at diametrically opposite points with wrist-pins 9, to which are pivotally connected at their upper ends in the customary manner the pitmen 10. Said pitinen are bolted at their lower ends to the metallic straps 11.

12 designates vertical plates, of sheet metal,

having their faces adjacent to and paralleli with the front sides of the channel- bars 3 and 4 and bent so as to provide the vertical iianges 13, which fit slidingly and snugly between the guide-blocks 14, bolted to said channelbars, as shown clearly on Sheet 3.

At a suitable distance apart each plate 12 is provided with openings 15, and projecting downwardly and forwardly through the upper opening is a plane or cutting-plate 16 and upwardly and forwardly through the lower openin g a plane or cutting-plate 17. The stationary frame of the upper plane is provided with extended ears 18, which carry the pin 19, upon which the lower end of the corresponding strap 11 is pivotally mounted. Said planes are set to cut at the required depth in the customary manner by the clamping-bolts 20, extending through notches or slots of the plane or cutting-blade.

Arranged below the plane 16 is a transverse slotted frame 21, and a similar-frame is arranged just above the plane 17. Each of said planes is clamped reliably and immovablybetween the angle-plates 22, bolted to the plate 12, and the transverse plates 23. A setof scoring-knives 24 of the customary form project outwardly from each frame 21 and through the opening 15 of its corresponding plate, and they are held reliablyin the positionrequired by means of the clamping-bolts 25. By this arrangement and disposition of the parts it is obvious that as the plate 12 is moved downward the plane 16 operates, and that as it -is moved upward the plane 17 operates, this alternate operation of said planes continuing as long as the machine is in operation.

26 designates stationary bearings which are bolted or otherwise suitably secured to the front anges of the channel-bars or st- andards 3 and 4, one set of said bearings, being located at a point opposite the lowest limit of travel of the planes 16and the other opposite the upper limit of travel of the planes 17, and j ournaled in said bearings are corrugated or toothed rollers. The roller at the lower limit of movement of the plane 16 at one side of the machine is numbered 27, and diagonallyopposite is the roller 27 f, located at the upper end of the limit of movement of the plane 17 at the opposite side of the machine. Above said roller is the roller 28, located at IOO the lower end or limit of movement of the plane 1G at the corresponding side of the machine, and diagonally opposite and below the roller 27 is the roller 28, located at the upper limit of movement of the plane 17 at the corresponding side of the machine.

As will hereinafter appear, the rollers 27 and 27 work together and alternately with respect to the rollers 2S and 2S. Mounted rigidly upon the extensions of the rollers 27, 27, 2S, and 2S are worm-wheels 27', 27', 2S', and 2S', respectively. Arranged vertically above the rollers 27 and 28, respectively, are similar rollers 27b and 28h, and said rollers are journaled in bearings 29, fitting snugly against the face of the framework and provided with longitudinal slots 30, which engage guide and retaining bolts 31, projecting from said framework. Said bearings are also provided with upwardly-extending rack-bars 32, engaging cog-wheels 33, mounted rigidly upon shafts 34, journaled in bearing brackets or bars 35, bolted or otherwise suitably secured to the standards 3 and 4 of the framework, and said shafts are provided also with handles or levers 3G, by which they may be operated, for a purpose which will hereinafter appear.

Vertically below the rollers 27n and 2S are the rollers 27" and 28M', respectively, and said rollers are journaled in bearings 29, provided with slots 30, engaged by clamping and steering bolts 3l, projecting, as above eX- plained, from the framework. These bearings are also provided with rack-bar extensions 32, engaged by cog-wheels 33, mounted rigidly on shafts Said shafts are also journaled in bearing brackets or bars 35, secured to the framework, and are provided with handles 3G. Each pair of superposed or vertically-alined bearing-boxes are held toward each other with a yielding force by means of the retractile springs 37, which are attached at their opposite ends to said bearings and tend, therefore, to move the rollers 27b and 28" down toward the stationary `rollers 27 and 2S, respectively, and the movable rollers 27 and 28' upwardly toward the rollers 27 n and 2S, respectively, so as to hold the blocks of wood 38 firmly and reliablyin position, one of said blocks being arranged between each pair of rollers, the latter impinging firmly against the ends of the block, as shown clearly in Fig. 1, and holding it adjacent to and parallel with the vertically-reciprocating knife or plane-carrying plate 12.

Mounted upon the inward]y-extending end of the rollers 27h, 28h, 27", and 28a" are wormwheels 27', 28h', 27"', and 28W', respectively, these worm-wheels being of the same size and located in the same vertical plane as the worm-wheels hereinbefore described.

3S) and 40 designate a pair of verticallyalined shafts which together exceed the distance between the upper and lower sliding bearings 29 and are journaled at their upper and lower ends in bearings 41. At a point opposite the middle of Jthe space between the rollers 27 and 2S the meeting ends of said shafts are journaled in a bearing 42.

The shaft 39 is provided with a worm-th read 43, engaging the worm-wheel 27', and with a worm-thread 44, engaging the worm-wheel 27'.

The shaft 40 is provid ed with a worm-thread 45, engaging the worm-wl1eel2S', and with a worm-thread 4G, engaging the worm-wheel 283,!!!-

At the opposite sido of the machine are arranged a similar pair of vertically-alined shafts 47 and 4S, and said shafts are also journaled in bearings 41 and the middle bearing 42, as before described.

The shaft 47, at its upper end, is provided with a worm-thread 49, engaging a wormwheel 28h', and near its lower end with the worm-thread 50,engagin g the worm-wheel 2S The shaft 4S is provided with a wormthread 51, engaging the worm-wheel 27f", and with a worm-thread 52, engaging the wormwheel 27"'.

At a suitable point the inner standards 4 are connected by a brace-bar 53, and secured thereon are bearings 54 for a pair of vertical shafts 55 and 56. Said shafts, at their upper ends, are journaled in brackets 57, secured to the framework, and carry worin-'wheels 5S, engaging the cam or switch-wheels 59, secured rigidly upon the shaft 5 at opposite sides of the belt-wheel 6, said switch-wheels being preferably constructed in two parts and bolted together, as shown, and having peripheries in the form of a spiral fla'nge, the convolutions of which for the greater part of the circumference of each wheel extend parallel and have their comparatively abrupt inclined portions (S arranged at diametrically opposite points, in order that when the inclined or cam portion of one wheel is acting upon its corresponding worm-wheel S the parallel portions of the spiral fiange of the other wheel will be in engagement with the corresponding worm-wheel 5S, so as not to operate it, as will be readily understood.

A sprocket chain (31 connects sprocketwheels G2 and G3 on the shafts 55 and 39, respectively, and a similar sprocket-chain 64 connects sprocket-wheels 65 and 15G on the shafts 5G and 47, respectively.

A sprocket chain 67 connects sprocketwheel GS on the shaft with the sprocketwheel on the shaft 4S, and a similar sprocket-chain 70 connects `sprock( t-wheel 7l on the shaft 5G with sprocket-wheel 72 `on shaft 40. i

The general operation is as follows: It being assumed that the parts are in the relative positions shown in Fig. 1, with one set of planes or knives depressed and the other elevated and the lower knife or plane 17 at the left-hand side of the machine and the upper knife or plane 16 at the right-hand side of the machine about to perform synchronously their functionsthat is, to act upon their respective blocks of wood 558- TOO IlO

and, in conjunction with their precedent scoring-knives, produce eXcelsior as the resultant product. Vhile the parts are in the positions shownthat is, while the pitmen 10 are passing the dead-center and the planes are for a moment inoperativethe cam or inclined portion of the switch-wheel at the right-hand side of the machine rotatably adjusts the shaft 56 through the medium of its worm-wheel 5S. This slight rotatable movement of the shaft 56, through the medium of the gearing hereinbefore described-that is, the sprocket-chains 64 and 70 and the engaged sprocket-wheels-operates the shafts 47 and 40, and through the medium of the worm-gearing rotatably adjusts the toothed rollers 28 and 28b and 28 and 28M', so as to move their respective blocks of wood bodily inward about the distance of one one-hundredth of an inch, though this distance of course may be varied as circumstances direct. Immediately this adjustment of the blocks is made the continued movement of the belt-wheel causes the pitmen to reverse the position shown in Fig. l, and consequently causes the u pwardly-moving planel7 and the downwardly-moving plane 18 to shave from said inwardly-adjusted blocks excelsior of therequired thickness. By the time said planes have reached the limit of their movement the other pair of planes 1G and 17 have assumed positions at the upper and lower ends of their respective blocks, and as they take such position said blocks are adjusted inwardly one one-hundredth of an inch by reason of the fact that the cam or inclined surface of their switch-wheel engages and operates rotatably the worm-wheel 58 of the shaft 55, and said shaft imparts movement, through the medium of the chains 6l and 67 and their engaged sprocket-wheels, to the shafts 39 and 48, and therefore rotatably adjust the toothed rollers 27 and 27b and 27a and 2W through the lmedium of the worm-gearing hereinbefore described. Thus it will be seen that with each complete revolution of the belt-wheel 26 all four of the wood blocks are operated upon, two of them at diagonally opposite points being simultaneously planed at each half-revolution and alternately adjusted to accommodate the knives which reciprocate continuously in the same vertical planes.

To secure blocks of wood in position, it is necessary to grasp and operate the handles or levers 36 and, thereby rotating the cog-wheels 33, move the rack-bars 32 and the sliding bearings 29 farther away from the companion l the stationary rollers. After a block has been planed sufliciently and a new one is required the old one is removed by simply grasping the lever and moving the movable roller out of engagement with the block, as will be readily understood,

It will be understood, of course, that the capacity of this machine may be increased by duplicatin g the mechanism or parts herein shown and described and that various changes may be resorted to without departing from the spirit and scope or sacrificing any of the advantages of my invention.

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

A11 eXcelsior-cutting machine, comprising a suitable framework, a rotating drive-shaft' mounted thereon, wheels upon said driveshaft, pitmen connected to said wheels at diametrically opposite points, sliding or reciprocating plates guided in the framework and operated by said pitmen, oppositely-disposed planes carried by said plate, a pair of toothed feed-rollers j ournaled upon the framework opposite each plate, a companion toothed roller above and below each pair of said first-named toothed rollers, vertical shafts geared to each pair of companion toothed rollers,a pair of vertical shafts suitably supported, each geared to a pair of the diagonally oppositeshafts rst named, worm-wheels upon said last-named pair of shafts, and switch wheels rigidly mounted upon the drive-shaft, and adapted once in each revolution of said shaft to opcrate its respective worm-gear, substantially as described.

In testimony whereof I aiX my signature in presence of two witnesses.

FRANCIS ABEL. IVitnesses:

E. WRIGHT TAYLOR, G. Y. THORPE.

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