US1910895A - Shingle-planing machine - Google Patents

Description

May 23, 1933. E. E. GILMER 1,910,895

SHINGLE PLANING MACHINE Filed Oct. 19, 1951 2 Sheets-Sheet l l f0 "1 4 5mm? 15. G/LME/B,

" g l1 INVENTOR,

15w ATTORNEY.

May 23, 1933. E. E. GILMER SHINGLE PLANING MACHINE Filed Oct. 19, 1931 2 Sheets-Sheet .2

4 mmzsn, INVENTOR,

% 1 5 ATTORNEY.

Patented May 23, 1933 warren sra'rss PATENT CFFECE E. GZLMER, OF

TO B. W.

SHINGLE-IELAHIHG MACHINE Application filed October 19, 1931. Serial a. 569,644.

This invention relates to improvements in ,machinos for planing or processing shingles to form superficial grooves upon one side thereof.

The object of the invention isto provide a machine of the class described of simple and practicable construction which will plane or groove tapered shingles at a uniform depth throughout their lengths or at progressively increasing depths from or near their thinner edges until a predetermined depth of groove is attained whereupon the grooves will be maintained at a uniform depth for the remainder of the length of the shingle.

Thus a shingle of the usual form may be provided with longitudinally directed grooves upon its outer or weather side for all or a. major part of its length. Such an grooves may be individually of irregular configuration and depth to afford an exposed surface of pleasing appearance and 1mproved wearing qualities simulating a split shingle or shake in its uneven surface outline,

and is further characterized, as in split shingles, by the individual grooves being of uniform depths throughout their lengths in'the portions thereof exposed to View or weather, the thinner portions of the shingle being of progressively shallower depths, if so desired, as the shingle narrows in thickness in order not to unnecessarily weaken the shingle.

Other objects and advantages residing in my invention, and objects relating to details of construction and arrangements of parts, will be readily apparent in the course of the detailed description to follow.

The accompanying drawings illustrate by 49 way of example a representative form of my invention, in which:

Figure 1 is a partial View in side elevation of a machine embodying my invention.

Fig. 2 is a View in vertical section of the same taken on line 22 of Fig. 1. I i

Fig. 3 is a top plan view of Fig. 1, partly broken away.

Fig. 4 is a view in vertical section of one of the cutter-head supporting frames, taken C on line 41-4 of Fig. 5.

Fig. 5 is a view in section on line 55 of Fig. 4 showing a portion of the cutter-head and contact-roller in side elevation.

Fig. 6 is a detached view in end elevation of the cutter-head.

Fig. 7 is a view in side elevation of a shin gle indicating in broken lines the form of out made by the machine thereon.

Fig. 8 is a fragmentary perspective view of the shingle. I

Referring to said views, the reference numeral 1 indicates generally the horizontally arranged body-frame of my improved shingle-processing machine mounted upon leg-supports 2. Each of the side rails of said frame is formed compositely of aligned terminal channel-bars 3 and 4E disposed with their flanges directed outwardly and spaced apart at their inner ends to form a gap 5, which gap is bridged by a relatively short section of similar channel-bar 6, rigidly secured to the opposite ends of the bars 3 and 1 by bolts 7, and with its flanges directed inwardly.

The body-frame includes a plurality of transversely disposed beams, indicated at 8, upon which bed-plate sections 9, 10, 11 and 12 are supported in a common horizontal plane. Gaps may be provided between bed-plates 9 and 10 and between 11 and 12 within which the upper peripheries of idler-rollers 13 and 14 may protrude slightly. Said rollers are rotatively mounted in transversely directed parallel relation in boxes 15 bolted to the side rails 3 and 4 of the frame. Immediately above each of said idler-roller a power-actu ated roller 16, 17 is respectively mounted in parallel alignment and in yielding contact therewith. The axially directed mandrels of said driven rollers are rotatively mounted in journal-boxes 19 of standards 20 rigidly securedto the side rails. Said boxes are slidably mounted in slots in said standards and are yieldably seated upon the lower ends of the slots and in Contact with the respective rollers 13 and 14 by means of springs 21 in an obvious manner.

A pair of rigidly projecting lugs 22 rectangular in cross section extend outwardly from the bar 6 in symmetrically spaced relation within the gap 5 at each side of the frame. A similar lug 23 is positioned intermediate the lugs 22 and at a higher elevation. A chambered box-frame is slid ably mounted for vertical movements at each of the opposite sides of the machine and within the respective gaps 5 of the side rails in which the cutter-head 25 and its upper contacting roller 26 are operably mounted. Said frame comprises front and rear walls 27 and 28 integrally or otherwise connected together by transverse walls 29 to provide an interior chamber 30 therein. The lower, broader portion of each of the frames at is formed with vertically disposed oblong slots 31 in its front and rear walls correspondingly positioned to l'GCGlVO the respective lugs 22 and 23 and admitting of vertical reciprocative movements of the frames thereon While in close sliding engagement with the side surfaces of the lugs to resist the torsion of the cutter-head.

The cutter-head 25 is provided with a mandrel 32 which protrudes at each end through slots not shown, in the respective bars 6 and is journaled in suitable bearings 33 rigidly mounted in the frame 2-l intermediate the lower slots 31. At the upper, narrowed portion of each of said frames vertically directed guide-slots 3e are formed in the front and rear walls in which bearings are slidably engaged. The mandrel 36 of' said contacting-roller 26 is rotatably mounted in the bearings at its opposite endsand is yieldingly urged to seat upon the lower end of the respective slot 34' by coilsprings 37 engaging the respective bearing at one end and the top wall of the slot at its other end. A tie-bar 38 is rigidly connected at its opposite ends to the box-frames 24 adjacent their upper ends wherebythe frames and the cutter-head with its contact-roller may move in unison.

The upper rollers may be rotatively actuated in any suitable manner. As shown, the

- mandrel 39 of the roller 17 is provided with a sprocket-wheel T0 keyed thereon which is driven by a sprocket-chain 41 actuated from a motor or other source of power,.not shown. Power is then taken from the mandrel 39 to drive the contact-roller 26 through a sprocketcl1ain 4-2 and the roller 16 isdriven in like manner from the mandrel 36 by a sprocket-chain 43. Therespective sprocketwheel elements with which said chains are operative are desirably of the same diameters to actuate said rollers at the same rate of speed and in the-same rotary direction as a feeding means for the shingles being operated upon. Said rollers may be grooved or provided with roughened surfaces, not shown, to aid in their function of advancing the shingles along the machine-bed.

A pair of set-screws 4A are received in screw-threaded apertures in the bottom wall l5-of each of the frames 24 directly in vertical line beneath the respective lower lugs 22. Coil-springs 46 are mounted about each said set-screw under tension between the respective lug 22 and the bottom wall whereby the box-frame in its entirety is yieldingly maintained together with-the assistance of its gravity in supported position upon the lugs 22 and 23 and with the cutting-edges of the cutter-head protruding slightly through the gap between the bed-plates 10 and 11 The upper extremities of the set-screws M are spaced below the respective lugs 22 for a predetermined distance to limit the upward travel of the box-frames and consequently the depth of cut of the cutter-head to such set amount so that upon the engagement of' the set-screws with the lugs the cutter-head will score or groove the shingles to a constant depth while the increasing thickness of the shingle towards the butt end will be compensated for by the yielding of the contactroller 26 in opposition to the springs 37.

In the cutter-head of my invention the mandrel 32 is formed with a longitudinal groove 47' and is screw-threaded, as at 48, adjacent its opposite ends. A plurality of cutter-knives 49 are mounted upon said mandrel through a medial circular aperture in each into' which an integral tongue 50 protrudes which is entered into the mandrelgroove l? to maintain the cutting-edges 51 n 1 ofsaid knives 1n alignment. Said cutterlnnves are desirably formed with opposite sides in. parallel. planes and with two cuttingedges 51 disposed upon diametrically opposite sides of then'iandrel. VJhen' mounted in close order upon the mandrel the knives are clamped together-thereon by means of a nut at each end engageable with the screwthreads 48 upon the mandrel. cutting-edges 51 of the respective knives are ground with substantially identical irregular contours and the cuttingedge of the cutter-head as a whole comprises a jagged, irregularly serrated edge upon each of its sides of th same conformation adapted to score the surface of the shingle acted upon with irregular longitudinal grooves in simulation of a split shingle- The cutter-head 25 may be independently driven by means of a belt 53 engaged about the grooved pulley 4e keyed upon the mandrel 32 and actuated by a suitable motor, not shown.

The operation of my improved machine may be briefly described follows: With the machine in inoperative condition the boxframes and associated elements will appear substantiallyas indicated in Figs. 1 and 5. That is to say, that the frames will be supported upon the lugs 22' and 23 at each side and the periphery of the contact-roller 26 will approach the rotary path. of the cutting edges of th cutter-head 25 to an extent determined by the bottoms of the slot-s 34 in The opposite 4 cutter-head 25.;and the .roller26 whereupon it will be attacked on its underside (by the butting-edges 51. of the rotating cutter-head toformlongitudinal grooves or scorings therein according to the pattern formed on said cutting-edge. Said grooves maybegin at the extreme end of the shingle if the roller 26 andthe cutter-head are spaced sufliciently closeltogetheror they may begin at a predetermined distance from the advance end of the shingle according to the. distance apart at which the roller and cutter-head are initially spaced. Y

In the prinia rystages of such cutting operations thetapering shingle in its advance will hav a tendencyto forcethe roller and cutter-head apart but the pressureof the roller 26 stiffened by the resistance of its springs 37, superinduced by the Weight of the box-frames and the tension of the springs 46se1've tomaintain the shingle in operative contact with the bed-plateswhile the cntterhead is in effect drawn upwardly with the frames .by the increasing thickness of the shingle and the reaction of the roller thereon i to score the grooves 56 therein of gradually increasing depths until the set screws 44: en-

gage the lugsQQ, see Fig. 1, whereuponthe cutter-head is restrained from cutting to a greater depth and will continue to cut to sucl'rdepth uniformly for the remainder of the lengthef the shingle. In. such latter stages of the shingles progress the roller 26. yields upwardly through the compression of the: springs 37ers determined by the increasing thickness towards the butt of the shingle. In Fig. 7 the grooves formed by thecutterhead are indicated bybroken lines wherein the increasing depth of the grooves at the thin end of the shingleareindicated by the numeral 57,- andthe point at which th depth of grooveis cheekedis indicated at 58, whereas theuniformdepth ofrgroovetowards the butt end of the shingle is. shown at 59.

It will be seen that either immediately upon theentrance of; the thinedge of the shingle between the cutter-head and the roller 26 or at a predetermined distance from such end according to the distance apartat which the cutter-head and roller are set that the weight of the box-frame assembly is taken off of the lugs 22 and 23 and carried by the roller 26 in its support upon the shingle and that the increasing thickness of the shingle causesthe cutting-edges 51 to. cutthe scorings in the lower side of the shingle at progressivelyincreasing depths 1 approximately in parallel with the uppersurface of the shingle and that upon thewengagement of the set-screws 44 a with the lugs22 the framez as a whole will remain stationarywhile. the roller26 will yield upwardly causing the cutting-edges to score the shingle for the balance of its length at a uniform depth in parallel with the lower face of the shingle.

The machine is simple in construction and entlrely practleable in its operation to produce-an originally sawed shingle having the altogether commercially desirable surface ornamental flutings simulating the old-fashioned split shingle or shake. The product of the present machinephowever, in addition to its attractive appearance is characterized by practically unimpaired strength and endurlng qualities due to the shallow depth of the grooving at the thin edge of the shingle and confining the depth of surface out throughout the greaterpart of its length to a desired uniform maximum, or by leaving the thin edge of the shingleuntouchcd and scoring the remainder at a uniformdepth. Such processed shlngle will be more resistant to rot than the usual sawed shingle of commerce owing to its planed side exposed to the weather and will not check nor warp as readily due to the longitudinal flutings affording a greatly increased dispersion of the shrinking and expansion strains than the raw, unprocessed variety of shingle.

.Having described my invention, what I claim,is: a y l .1

1. Ina shingle-planing machine, a. body having a plane bed,a-fra1ne mounted transversely of said body and movable in vertical directions, a cutter-head journaled in said frame and operable upon the underside of a tapered shingle advanced along said bed, a roller journaled in saidframe and engaging the upper side of the shingle to determine the 3 depth of cutinade by the cutterhead.

2.111 a shingle-planing machine, a body having a plane bed, means to progressively advance a taperedshingle along'said bed, a frame mounted transversely of said body and movable in vertical directions, a cutter-head journaled in said frameand operable upon the underside of the shingle, a roller journaled in said frame and engagingthe upper cut made by the cutter-head. i

In a shingle-planing machine, a hotly having a plane bed, a frame mounted on said body and movable in vertical directions, a cutter-head journaled in said .l'ranie and arranged to surface-cut the underside of a tapered shingle advanced alongsaid bed, a

side ofthe shingle to determine the depth of i engaged upon said supports and movable therefrom in vertical directions, a cutterhead' journaled in said frame and arranged tosurface-cut the underside of a tapered shingle advanced along said bed, a roller journaled in said frame in bearing relation upon the shingle being cut and arranged to support the weight of said frame as the frame is lifted from said support by the increasing thickness of the advancing shingle below said roller.

5. In a shingle-planing machine, a body having a plane bed, a frame supported on said body, a cutter-head journaled in said frame and arranged to surface'cut the underside of a tapered shingle advanced along said bed, a roller journaled in said frame and adapted to engage the advancing shingle being out to lift the frame from its support upon the machine-body and to bear the weight thereof during the cutting operations.

6. In a shingle-planing machine, a body having a plane bed, a frame supported on i said body and guided for vertical movements, a cutter-head ournaled in said frame and arranged to surface-cut the underside of a tapered shingle advanced along said bed, and means mounted in said frame contacting with the upper surface of the advancing shingle being cut to support the weight of the frame upon theshingle and to serve as a gauge to determine the depth of cut of the cutter-head.

7. In a shingle-planing machine arranged to surface-cut a tapered shingle upon its under side, a cutter-head operatively mounted in said machine and bodily movable during its operation relatively to the shingle being cut, means to advance a shingle over said cutter-head, means actuated by the shingle in its progress over the cutter-head to cause the cutter-head to out said shingle in parallel with the plane of the upper side of the shin gle to a predetermined depth of out, and stop devices limiting the depth of cut of said cutter-head to cut and the remainder of the length of the shingle in parallel with the means to cause the shingle in its progress:

past said cutter-head to actuate the cutterhead to make progressively deeper grooves into the shingle to a predetermined depth, and means to maintain a uniform depth of grooves cut by the cutter-head for the remainder of the length of the shingle.

9. In a shingle-planing machine, a body having a plane bed, a plurality of guide-lugs upon opposite sides of said body, a frame supported in its initial position upon said lugs and guided thereby in its later vertical movements, a cutter-head journaled in said frame and arranged to form superficial grooves longitudinally upon the underside of a tapered shingle, means mounted in said frame and engaging the upper side of the shingle as it is advanced over the cutter-head to lift the cutter-head progressively as the thickness of the shingle increases to form its out therein at a depth in parallel with the upper surface of the shingle, and means to check the progress of the cutter-head in its depth of cut at a prearranged point in the length of the shingle and maintain an even depth of cut for the remainder of the length of the shingle.

10. In a shingle-planing machine, consisting of a body having a plane bed, a frame mounted transversely of said body and arranged for vertical movements thereon, means for supporting said frame and guiding it in vertical relation with the body, a cutter-head journaled in the frame and 0perable therewith to protrude to a varying extent through said bed, and a roller yieldingly journaled in said frame in superposed relation with said cutter-head and adapted to engage a tapered shingle being acted upon by the cutter-head to cause the cutter-head to form its cut therein in parallel with the upper surface of the shingle.

11. In a shingle-planing machine, a body having a plane bed, a frame mounted trans versely of said body and arranged for vertical movements thereon, means for supporting said frame and guiding it in vertical relation with the body, a cutter-head journaled in the frameand; operable therewith to protrude to a varying extent through said bed, a roller yieldingly journaled in said frame in superposed relation with said cutter-head and adapted to engage a tapered shingle being acted upon by the cutter-head to cause the cutter-head to'form its out therein in parallel with the upper surface of the shingle, and adustable stop means to check the further depth of cut of the cutter-head at a desired point in the length of the shingle and to maintain a uniform'depth of cut for the remainder of its length.

'12; A. shingle-planing machine, consisting of a body having a plane bed, a frame mounted transversely of said body and arranged for vertical movements thereon, means for supporting said frame and guiding it in vertical relation with the-body, a cutter-headjournaled in the frame and operable therewith to protrude to a varying extent abovethe plane of said bed, a roller yieldingly ournaled in said frame in superposed relation with said cutter-head, and adapted to engage a tapered shingle being acted upon by the cutter-head to cause the frame to rise vertically in accordance with the increasing thickness of the shingle as it is advanced between the cutter-head ingly journaled in the frame in superposed i'ipWardly in accordance With and the roller, andmeans to check the rise of the frameat a predetermined point in the length of the shingle and thereby cause the roller to yield to accommodate the further in crease in thickness of theshingle.

13. In a shingle-pIaning machine a body having a plane bed, a frame mounted transversely of said body, means foryguiding said frame in vertical directions; a cutter-head journaled in the frame and extending above the plane of said bed to act upon the underside of a tapered shingle, and a roller yieldrelation to said cutter-head and arranged to bearupon the upper surface ofsald shingle to cause the frame and cutter-head to move thickness of the shingle. a

14. A shingle-planing mach ne, conslsting of abody having a plane bed, a frame m0unted transversely OfSZLlCl body, means for gulding said frame in vertical directions, a cutterhead journaledj in the frame and extending above the plane of said bed to act upon the undersideof a tapered shingle, a roller yielda ingly ]ournaled 1n the frame 111 superposed relation to the cutter-head and arranged to bear upon the upper surface of said shingle to cause said frame and cutter-head to move up Wardly in accordance with the increase in thickness of the sh1ngle, and stop means to check the upward movement of the frame and cutter-head at a desired point in the length of the shingle and thereby cause the roller to yield upwardly to accommodate for the fur ther increasein the thickness in the shingle,

ERNEST E. GILMER.

the increase in

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