US1634789A

US1634789A - Shingle-planing machine

Info

Publication number: US1634789A
Application number: US114616A
Authority: US
Inventors: Charles J Melby
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-06-09
Filing date: 1926-06-09
Publication date: 1927-07-05
Anticipated expiration: 1944-07-05

Description

July

C. J. MELBY SHINGLE PLANING MACHINE Filed June 9, 1926 ATTORNEY 'PATENT OFFICE,

omnes .1. mamy, or nvnnnnrrr, WASHINGTON.

sHINeIJs-rLANrNe' MAcHINn.

Appiioamn ma .rune a, 192e. semi No. 114,616. i

This invention relates to a machine for planing taper-sawed shingles and, more especially, for surface grooving the same to produce what is known asshake-shingles..

5 The object ofthe invention is the 1mprovement of machines of the character above referred to.

In the accompanying drawing,-

Figure 1 is a plan View, with parts broken i away, of a shingle planing machine embodying my invention; Fig. 2 is a longitudinal vertical section of Fig. 1 and illustrating a shingle a plied; and Fig. 3 1s a transverse section on line 3-3 of Fig. 2. Fig. 4 is a l5 plan view of the shingle-grooving cutter knife, shown detached. Fig. 5 is a perspective view of a grooved `shingle as produced by the shake-shingle machine illustrated 1n the preceding views.

The machine frame may be of any suitableY construction and, as illustrated-.1ncludes longitudinal side rails 11, supporting legs 12, and spaced apart bed plates 13 an 14 which are rigid with said side rails at 25 the respective ends of the frame.

15 represents a horizontallydisposed cutter head whose arbor `151 is `iournaled in bearing boxes 152 secured to said side rails 11 in proximity of the inner edge 141. of the 3 bed plate 14. Upon one of its peripheral surfaces said head has secured thereto a cutter knife 16' which, as shown in Fig. 4, 1s

provided in its outer surface with a series of alternatingr ridges and grooves 18, parallel with .each other and in rectangular relation to the axis of their revolution.

Said knife is beveled at its front, or leading side, to afford a cutting edge 19 at the intersection of the plane of suoli front side 40 with the corrugated surface of the knife. In practice, the weight of the knife 16 is balanced by a `counterweight or, as shown,

- by means of a second knife 20 which 1s not provided with corrugations and has a straight cutting edge.

By adjusting the knives with respect to each other and to the work, either knife may be utilized for cutting separately but not together, such for instance, as when planing a plane surface, the knife 2O would be regulated to have its strai ht cut-ting edge travel in an orbit of larger iameter than the orbit to which the irregular cutting edge 19 of the knife 16 is positioned; and, vice versa, when the knife 16 is to be employed for -grooving a shingle.

The cutter head 15 is driven by means of a belt 22 passing about a pulley 23 which is mounted upon the arbor 151. Positioned in the opening between the cutter head 15 and the bed plate 13 and constituting, in effect, a continuation of the latter, is a plate 24, hereinafter designated as the lifting plate which is hingediy connected at 11s front emi to the machine frame as by means of a pivot rod 25 extending through apertured lugs, such as 26, of the lifting plate.

27 represent springs interposed between a bridge member 28 of the machine frame and the free end of the lifting plate, said springs tending to yieldingly retain the lift-v ing plate in its u ermost position. The elevation of the li ting plate is limited by the provision of stops 29, such as nuts, taking upon threaded bolts 30 depending from the lifting plate through holes provided in the bridge member 28 and arranged to engage against the latter.

Supplementary to and located above the lifting plate 24 is a pressure plate 31 of a length to extend above the bed late 14 to the rear of the cutter head. Sai pressure plate is formed or provided with transversely arranged reinforcing bar elements 311 having at each side of the plate proper apertures through which respectively extend vertical guide rods 32 rigid with the frame.

These rods are screw threaded to receive nuts 33 below the presser plate barelements to limit the downward movement of the same.

Threaded upon these guide rods above the presser plate are nuts 34 for confinin springs 35 which are mounted upon the ro s and act to yieldingly retain the presser plate against the stops 33.

37 represent endless chains, one at each side of the machine, passing about

sprocket wheels

38 and 39 and through guiding channels 40 mounted upon the respective side rails 11 of the machine frame.

The

sprocket wheels

38 and 39 are respectively mounted upon shafts 381 and 391 which arejournaled in bracket boxes 48 or an equivalent provided on the frame.

Transversely arranged attachments 41 are connected to said chains to effect the feeding of the work when the chains are driven as by means of a power belt 42 passing about a pulley 43 provided therefor on the shaft 391.

The character of the work performed in the machine by the fluted cutter knife 19 is illustrated in Fig. 5 and is known in the art as a shake-shingle. This type of shingle is produced from ata er-sawed shin le having upper andi lovver p ane surfaces y'cutting grooves 44 longitudinally of the shingle' 1n one of its surfaces, said grooves extending from the butt end of the shingle to within a short distance of, the shingle point 45, the ungrooved plane portion 1.1.6 of such surface being intended to underlie the butt end of the shingle in a course next above 1n the shingling of a roof.

In operation, a shingle, as indicated by 5,'

placed with its point in front u on the bed plate 13 will be engaged at its utt end by an attachment 41 of the feed chains 37 to be propelled thereby.

The shingle is thus fed point first upon the lifter plate 24 keeping the shin le above the cutting circle of the cutter an against the under surface of the presser plate 3l.

When in its continued travel the thickness of the shingle abovel the cutter head exceeds the space between the presser plate and the cutting circle, the planing of the shingle occurs and continues until the butt end of the shingle has passed beyond the cutter head. When a plane cutting knife, as explained with reference to the knife 20, is employed the surface of the shingle acted upon will be finished to a plane; but When the fluted cutter knife 16 is employed the shingle surface acted upon Will be grooved 'as represented in Fig. 5.

By regulating the operating cutter knife to have its cutting edge revolve in a cutting circle of more or less diameter, the extent of the protrusion'of the cutting circle above the plane of the upper surface of the frameplate la- Will determine the depth cut into a shingle.

It is to be noted that the presser plate 3l is supported by the stops 33 (Fig. 3), and

- that the presser plate is yieldingly held in operable position by means of springs 35 located at both sides and in proximity with both ends of the presser plate. The springs 35 which actuate the presser plate are-of greater ower than the springs 27 Which actuat-e tie lifter plate. In practice a shield plate is desirably provided to' protect the springs 27 from shavings projected by the cutter knife. l

1. In a shingle-planing machine, a rotary lcutter-head, a grooved planer knife mounted upon said cutter-head, means to progressively feed a shingle upon the machine, spring pressed lifting means acting to elevate a shingle out" of the cutting re ion of said planer knife until after an en portion of the shingle has traveled beyond said cutting region, and a spring pressed means engageable by the shingle to effect movement of the shingle into said cutting region for grooving the shingle from said portion to the other end of the shingle.

2. In a shingle-planing machine, a' cutterhead, a planer knife therefor, said planer knife being grooved upon its outer side With respect to the cutter-head, shingle feeding means, means to elevate the point end of a shingle out of cutting relation with said planer knife, and means acting subsequently to the aforesaid means to regulate the shingle to have its under-surface grooved by the planer knife.

3. In a shingle-planing machine, the combination with the machine frame including a top comprising two horizontally spaced apart bed elements, and a rotary cutter located between said bed elements, of a presser plate located above the cutter and provided with guideways, posts extending upwardly from said frame through said Ways for guiding the presser plate, means adjustable upon the respective posts to limit the. downward movement of said plate, sprlngs mounted upon said posts for yieldably retaining the plate in its lowermost position, a lifter plate hingedly connected to said frame and having its free end extend into the space beneath said -presser plate, resilient means tending to ret-ain the free end of the lifter plate in its uppermost position, said presser plate and lifting plate being arranged to be influenced by the feeding of a shingle therebetween to raise and lower the same into cutting relation with said cutter, and means to effect the feeding of the shingle.

Signed at Seattle, day of April, 1926.

CHARLES J. MELBY.

Washington, this 20th