US1261581A - Shingle-machine. - Google Patents

Description

A. M. MARSHALL.

SHINGLE MACHINE.

APPLICATION FILED OCT. 20. me.

Patented Apr. 2, 1918.

2 SHEETS-SHEET! ("luau W01 A. M. MARSHALL.

SHINGLE MACHINE. APPLICATION FILED OCT. 20. 1916.

1,261,581. P1101161 Apr. 2, 1918.

2 SHEETS-SHEET 2- a7 a2 & 6

atto'auw To. allwhom it may concern:

AnLIson M. MARSHALL, or STIGLER, OKLAHQMA.

SHINGLE-MACHINE.

Specification of Letters Patent.

Patented Apr. 2, 1918.

Application fiIedOctober 20,1916. Seria1'NoH126fl38.

Beit known that I, ALLISON M. MARSHALL, a citizen of the United States, residing at Stigler, in thecounty of Haskell and State of Oklahoma, have invented new and useful Improvements in Shingle-Machines, of which the-following is a specification.

Thisinvention relatesto shingle machines ofthatgeneral class or type in which a reciprocatory carriage is utilized to carry the shingleblocks across a circular saw which is. set ormounted for rotation in an approximately horizontal plane, means being employed whereby the blocks will betilted at thelimitof themovement in each direction, shingles being cut from the blocks as the carriage moves in either direction.

One. object of the invention is to simplify and improve the construction of the carriage and the block tilting means.

A further object of the invention is to provide; stationary supports for the shingle blocks whereby the shingle blocks will. be oppositely tilted at opposite sides of the saw, means being also provided whereby the shingle blocksare properly clamped and retainedwith respectto the carriage.

"With these and other ends in view which willreadily appear as the nature of the inventionis better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claim.

'Inthe accompanying drawings has been illustrated a simple and preferred form of theinvention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the claim may be resorted to when desired.

Inthe drawings,-

Figure 1 is a top plan view of a shingle machine constructed in accordance with. the

- invention, the carriage being shown positioned at one limit of its movement.

Fig, 2 ,is a longitudinal sectional view taken on the line 22 in Fig. 1.

.Fig.,3 isa transversesectional view taken on the line-3+3 in Fig.1,through the saw and looking inthe directionof the carriage. ;Fig.. 1 isa transverse sectional view taken 91% the lineAw-inllig. 1 throughthemain fr i eendth c r ia e- 1 .is; 3% perspective ,view showing the carriage detached from the frame of the machine.

iCorresponding.partsin the several figures aredenoted by like characters of reference. The bed frame A of the machine is ,of rectangular form, being composed of side members 15 and endmembers 16. The bed frame may be mountedon legs or supports, portions of which appear at l7,-and thev side members 15 are provided. ontheirinner faces with track members 18 which are interrupted midway betweenthe ends of the frame, the side members l5lbeing provided at the points where the track members are interrupted with slots 19 forming outlets through which the greater portion of the sawdust may escape, ,fl-ues .20 being provided to carrythe sawdust'to a point of deposit, not shown. The circular saw 21 ismountedfor rotation about -midway between the sides of the frame. 1

Supported on cross bars22 and extending longitudinally of the frame are gage strips 23, 23, said strips being vertically adjustable by means ofscrews24. Two such gage strips are arrangedat each end of the machine at diametrically opposite. sides of the saw arbor, and-the gage strips are so arranged, by means of the adjusting screws, that two diagonally opposite strips, designated by23, will be relatively high, and the remaining two gage strips, 23', which are also diagonally opposite with respect to each other, will be relatively low; that is to say, the gage strips 23 will be arranged in ,an approximately horizontal plane which is above the approximately horizontal plane in. which the gage strips 23 are disposed. The-top faces of all the gage strips are disposed in planes below the plane of the circular saw 21. The carriage C which moves along the tracks 18 is of mainlyrectangular construction, consistingof a frame comprisingside members 25 and end members. 26, the latter being connected together by longitudinal frame bars 27. 'Secured on the under faces of the side members 25a the guide flanges 28 which extend beyond the outermost faces of the side members, and are adapted to ride on the track members 18. Secured on the under faces of the guide flanges and-spaced thereby from thelend members 26 beneath which theylextend are-supportingbars 29,

one ,at each end of the carriage frame, said s ppo in bar being 's i ient paced irem' -th lore face .o Jh endi-menh reto admit the slides 30, said slides constituting clamping members whereby the shingle blocks are clamped and held between the longitudinal frame bars 27. The slides or clamping members 30 are arranged substantially beneath the longitudinal frame bars 27 and each slide serves to clamp the blocks between one of said, bars and itself,'as will be presently seen.

Means are provided for projecting and retracting the slides or clamping members 30 with respect to the inner faces of the longitudinal frame bars, said means comprising longitudinal rock shafts 31 which are supported in bearings on the outer faces of the side members 25 of the carriage, said rock shafts extending terminally slightly beyond the'end members of the carriage, where said'rock shafts are provided with upwardly extending arms or levers 32 having laterally extendingarms 33. Y The ends of the slides 30 are connected with the carriage by means of toggles composed of links 34, 35 which are flexibly joined together at 36, the links 34 being pivotally connected with the slides, and the links 35 being pivotally connected with the carriage at the ends and near the sides of said carriage. A link rod 36 connects the arm 33 of each lever 32 with a toggle link 34, said toggle link being provided intermediate the ends thereof with an eye 37 with which the link rod 36 is flexibly connected.

It will be observed from the foregoing that either rock shaft 31 may be rocked by means of either one of the levers 32 at the two ends thereof and that by such movement the slides 30 may be projected or retracted with respect to the inner faces of the longitudinal frame bars 27 beneath which they slide. Stop members 38 are preferably provided on the ends of the carriage to limit the movement in one direction of the levers 32 to prevent the toggle joints from passing a dead center and thus prevent the retraction of the slides by the pressure of the shingle blocks clamped therey.

For the purpose of actuating the levers 32 and the parts controlled thereby cam members 38 are provided at-the two ends of the frame, said cam members being so disposed that when the carriage approaches the limit of its movement in one direction,

the respective levers and rock shafts will be actuated in opposite directions, while whenthe other limit of the movement of the carriage is approached, the respective rock shafts and levers will be actuated in the opposite directions, so that one slide will be moved into clamping position at one end "of the frame and into retracted position ,at

the other end. The parts of the machine are, moreover, so arranged that the slide 30 WhlCh is pro ected to clamping position at each limit of the movement of the'carriage slides'30 may both be retracted, thus permitting the shingle blocks to rest on the gage strips 23, 23 in a slightly tilted position, the extent of the tilt being governed by the adjusting screws '24. When the carriage is now moved to the limit of its movement, one of the slides will be projected by its actuating means in connection with one of the cams 38, thus causing the high ends of the shingle blocks to be clamped between one of the longitudinal frame bars and the slide 30. When the carriage is now moved to the other end of the frame, shingles will be cut from each of the blocks, said shingles dropping below the saw while the shingle blocks remain in position until the position of the slides 30 is reversed by engagement of some of the levers 32 with the cam members 38. The reversal of the slides or clamping mem; here will permit the shingle blocks'to drop gravitationally until they rest on the gage strips 23, 23 at that end of the machine,

the blocks being thus tilted and supported 7 charged.

For the purpose of imparting reciprocatory movement to the carriage any suitable and well known mechanism may be employed, but such mechanism being no part of the present invention, it has not been illustrated and it does not require to be particularly described.

The levers 32 may be provided at the points where they engage the cam members 38 with anti-friction elements, such as rollers 32, as illustrated at the right hand end of Fig. 5 of the drawings. The presence of these anti-friction rollers will to some degree facilitate the operation of the device, but such anti-friction elements may be used or dispensed with as may be desired. 1

Having thus described the invention, what is claimed as new, is

In a shingle machine, abed cular saw mounted about centrally of the frame, longitudinal gages between the saw and'the ends of the frame, said gages-being arranged in pairs at the two ends of the frame, means for supporting the gagesv of frame, a cireach pair at unequal heights, diagonally op 13 posite gages being supported at substantially the blocks between itself and one of the bars, 10 the same height, a reciprocatory carriage and cam means at the ends of the frame for on said frame having a pair of guide bars engaging with said levers for retracting one thereon spaced apart and adapted to receive of said slides and projecting the other, said 5 the shingle blocks between them, the space cams acting to move the slides in opposite between said bars being slightly greater than directions at the end of the machine. 15 the width of the blocks, a slide located below In testimony whereof I aflix my signature. each bar, a lever connected with each slide for moving the same horizontally to grip ALLISON M. MARSHALL.

Gopie: of this patent maybe obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. 0."

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