US1051594A - Planing-machine. - Google Patents

Description

A. A. HUSEBY.

PLANING MACHINE.

APPLICATION FILED SEPT. 2s. 1012.

Patented J an. 28, 1913.

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Patented Jan. 28, 1913.

A. A. HUSEBY.

PLANING MACHINE.

APPLICATION FILED SEPT. 2e, 1912.

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ALBERT A. HUSEBY, OF CHICAGO, ILLINOIS.

PLANING-MACHINE.

Specification of Letters Iatent. Patnbed J an. 28, 1913.

Application filed September 26, 1912. Serial No. 722,384.

1. Fig. 3 is a front elevation. Fig. 4; is a side elevation.

Referring to the drawings, 5 designates the front wall, G the rear wall, and 7 and 8 the side walls, respectively, of a rectangular housing that contains the feed mechanism, and is supported, preferably by wheels or rollers 9, upon a table or platform, the upper surface of which is indicated at 10, and within which table is journaled the To alt whom t may concern Be it known that I, ALBERT A. HUsnnY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Planing-Machines, of which the following is a specification.

This invention relates to the general art of wood planing machines, and has reference more particularly to that type of planing machine employed to effect a prelimiusual revolving planing cylinder (not nary leveling and flattening of more or less shown), the working edges of which eX- tend a slight distance above the surface 10 through a transverse slot in the latter, all as well understood in machines of this type.

Beneath ythe front wall 5 is a feed opening 11 through which the work, such as the timbei 12 (Fig. 2), is passed through the machine. Said opening is guarded by a vertically adjustable cover plate or gate 13 that is slidable over' the outer surface of the front wall 5, and may be secured at any adjusted height by clamps 14 extending through slots 14 in said gate.

Journalcd in and between the side walls 7 and 8 is a drive shaft 15. Loose on this shaft are a series of levers 16 arranged in mating pairs. The forwardly projecting arms of the levers of each pair are connected at their forward ends by a shortshaft 17, on which is journaled a pair of feed-rolls 18 that are rigidly united laterally by an interposed spur gear 19 The rearward 1y extending arms of said levers are connected by a rod' 20.

Fast on the drive shaft 15, between the hubs of the two levers of each pair, is a spur gear 21 that meshes with and drives the spur gear 19. Journaled in and between the side walls 7 and 8 above the rearwardly extending arms of the several levers 1G is a cam shaft 22, fast on which are a series of cams Q3 that overlie and are adapted to depressingly engage the rear ends of adjacent levers of adjacent pairs, as clearly shown in Fig. l, each cam thus operating the right-hand lever of one pair and the left-hand lever of the adjacent pair. One end of the cam shaft 22 projects beyond its bearing in the side wall 7 and has keyed thereto an operating lever 24 provide with a sliding detent 25 cooperating with a segment rack 26 secured to the side wall 7. By the means last described the several cams 23 can be forced downwardly to rock the feed-roll levers 16 so as to raise irregular surfaces of boards or timbers which, in drying out, may have become somewhat warped or bent. These machines comprise, essentially, a platform or table in which is mounted a rotary planing tool, and a series of rolls mounted thereabove between which and the surface of the table the stock to be operated upon passes, said rolls both feeding the stock over the planing tool and holding it down into engagement with the latter and the table.

My present invention has to do more particularly with the feed mechanism of such machines; and the main objects of the invention are to provide a feed mechanism which will be more certain and reliable in action, which object I accomplish mainly through an improved driving mechanism for such feed rolls; to provide a machine wherein the feed rolls shall be independently forced against the work by spring pressure which can be regulated as desired; to provide a construction wherein the feed rollsV can be quickly and easily adjusted to suit the thickness of the particular work being operated upon; and, generally, to simplify and improve both the 'structure and operation of machines of this character.

'Io these and other minor ends my invention consists in the novel parts and com-r bination of parts in a planing machine of the character specified all as hereinafter described and pointed out in the claims.

My invention, its mode of operation, and the advantages secured thereby will all be readily understood when considered in connection with the accompanying drawings, in which- 4 Figure 1 is a top plan view of my improved machine partly in horizontal section, and with the top cover of the housing removed to disclose interior parts. Fig. 2 is a transverse section on the line 2--2 of Fig.

kproj ecting from the that the spi'iiig' actuating lever 30 is in an rolls to the height required by the thickness of the work to be passed through the machine. Journaled in and between the side walls 7 and 3 parallel with the shafts 15 and 22 is a third shaft 27, fast on which are collars 28, to which are rig'idly secured downwardly extending spring arms 29, free ends of which bear of the forwardly extending arms of the levers 16, each spring arm engaging adjacent levers of adjacent pairs in the same way that each of t-he cams 23 engages adjacent levers of adjacent pairs. One end of the shaft 27 projects beyond its bearing in the side wall 7, and has keyed thereon an operating lever 30 provided with a sliding detent 31 engaging a segment rack 32 secured to the side wall 7. By this means, after the several feed-rolls 18 have been raised to the required height to accommodate the work 12, by' actuating the lever'30 the springs 29 are forced downwardly so as to exert spring' pressure upon the feed-rolls and cause the latter to grip or bite the work the work to be operated upon,

same time, gate 13, to a. sufficient height to admit the work. 14 are then tightened, and the tuating lever 30 is then thrown forward to force the springs 29 hard down upon the outer ends of the feed roll levers, as shown in F ig'. 2. As the work is then pushed forward, such of the feed rolls as engage the work ride up over the upper' surface of the latter, bearing' thereon under the action of the springs 29, with sufiicient force to feed the work through the machine.

12 with sufficient force to feed the latter I claimover the planing cylinder. Pivoted to thev 1. A feed mechanism for wood planing inner sides of the side walls 7 and 8 are gatemachines, comprising, in combination, a

raising levers 33, the forwardly extending arms of which project through holes 33 in the gate 13, and the rearwardly extending arms of which underlie at their free ends the outermost cams 23. By this means, assuming that the -clamps 14 have been loosened, the actuation of the lever 24 in a direction to Swing the cams 23 downwardly, raises the gate 13 substantially in proportion to the elevation of the feed-rolls, so that the` operator has only to tighten up the clamps 14 after setting the feed-rolls for operation upon a given size of work.

Power may be applied to the drive shaft 15 in any suitable way; Figs. 1 and 3 showing one practical form of power transmission. 34 designates a bracket casting rigidly bolted to the outer side drive shaft, a series' of levers pivoted side by side between their ends, feed-rolls journaled on the forwardly extending arms of ends of said levers to effect a raising movement of said feed-rolls, driving connections between said drive shaft and feed-rolls, and spring' mechanism for forcing said feed-rolls into gripping' engagement with the work.

2. A feed mechanism for wood planing machines, comprising, in combination, a drive shaft, a series of levers pivoted on said drive shaft between their ends, feedrolls journaled between the forwardly extending arms of adjacent levers, cam mechanism engaging' the rear ends of said levers to effect a raising movement of said feedrolls, driving connections between said drive shaft and feed-rolls, and spring mechanism for forcing said feed-rolls into gripping engagement with the work.

feed mechanism for wood planing machines, comprising, in combination, a drive shaft, a series of levers pivoted o-n said drive shaft between their ends, feed-rolls journaled between the forwardly extending The drives a spur gear 39 keyed on a sleeve 4 (Fig. 1), which, in turn, is journaled on a bearing stud 41 secured in and intermediate portion of the bracket casting 34. On the sleeve 40,

' engaging the rear ends of said levers to effect a raising' movement of said feed-rolls, coperating spur gears on said drive shaft and feed-rolls, respectively, for driving the latter from said drive shaft, and spring mechanism for forcing' said feed-rolls into gripping' engagement with the work.

4. A feed mechanism for wood planing machines, comprising, in combination, a drive shaft, a series of levers pivot-ed on said drive shaft between their ends, feed-rolls To protect the mechanism contained within the housing' or casing, as well as to cover plate 44 removably secured to the side and end walls of the casing as by screws 45. The housing and mechanism contained therein and car- The clamps 9 cam mechanism engaging the rear arms of adjacent levers, cam mechanism I journaled between the forwardly extending arms of adjacent levers, a cam shaft disposed above and parallel with said drive shaft, a series of cams fast on said cam shaft adapted to depress the rear ends of said levers, a hand lever on said cam shaft, driving connections between said drive shaft and feed-rolls, and spring mechanism for foreing said feed-rolls into gripping engagement with the work.

5. A feed mechanism for wood planing machines, comprising, in combination, a drive shaft, a series of levers pivoted on said drive shaft between their ends, feed-rolls journaled between the forwardly extending arms of adjacent levers, a cam shaft disposed above and parallel with said drive shaft, a series of cams fast on said cam shaft adapted to depress the rear ends of said levers, an operating lever on said cam shaft, coperating spur gears on said drive shaft and feed-rolls, respectively, for driving the latter from said drive shaft, and spring mechanism for forcing said feed-rolls into gripping engagement with the work.

6. A feed mechanism for wood planing machines, comprising, in combination, a drive shaft, a series of levers pivoted side by side between their ends, feed-rolls journaled on the forwardly extending arms of said levers, cam mechanism engaging the rear ends of said levers to effect a raising movement of said feed-rolls, driving connections between said driving shaft Vand feedrolls, a shaft disposed above and parallel with said driving shaft, a series of spring arms fast on said last named shaft and at their free ends engaging the forwardly eX- tending arms of said levers between adjacent feed-rolls, and a hand lever on said last named shaft for forcing said springs downwardly.

7. A feed mechanism foi` wood planing machines, comprising, in combination, a housing having a feed opening in its front wall, a vertically slidable gate guarding said feed opening, a series of feed-rolls and driving mechanism therefor in said housing, cam mechanism for elevating said feed1olls to working height, and mechanism also operated by said cam mechanism for elevating said gate simultaneously with the elevation of said feed-rolls.

8. A feed mechanism for wood planing machines, comprising, in combination, a housing having a feed opening in its front wall, a vertically slidable gate guarding said feed opening, a series of feed-rolls and driving mechanism therefor in said housing, cam mechanism for elevating said feed-rolls to working height, and a pair of pivoted gate-raising levers engaging said gate at their forward ends and at their rear ends engaged and actuated by said cam mechamsm.

ALBERT A. HUSEBY.

lVitnesses:

SAMUEL N. POND, HARRIET A. CRANNELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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