US1895016A

US1895016A - Shingle sawing machine

Info

Publication number: US1895016A
Application number: US563561A
Authority: US
Inventors: Maurice T Whiting
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-08-27
Filing date: 1931-09-18
Publication date: 1933-01-24
Anticipated expiration: 1950-01-24

Description

Jan. 24, 1933. M. T. wHlTlNG SHINGLE SAWING MACHINE Filed Sept. 18, 1931 2 Sheets-Shee'b w .km

fnvenor.

hl -l l ..-Il l -lilll l G Patented Jan. 24, 1933 MAURICE T. W'HITING, OF DUXBURY, MASSACHUSETTS SHINGLE SAWI'NG MACHINE Application filed September 1S, 1931, Serial No. 563,561, and in Ganada August 27, 1931.

rlhis invention r-elates to split wooden shingles, one face of which presents a rived or natural split appearance and the other face of which is smooth and plane; 'and to a 5 machine for making such shingles.

rlhis type of shingle is made by sawing a split or rived shake into two pieces along a diagonal of the shake, thereby forming two shingles from a single shake. Since the shakes are split by hand from the log, they vary considerably in thickness and, with the usual method of sawing the shakes, the butts of the shingles also Vary considerably in thickness. This variation in thickness of the butts of the shingles is objectionable when the shingles are laid in a course on a roof since they form an irregular top surface upon which other shingles must be laid. As a consequence, there will be open spaces under the shingles through which snow can blow and collect to melt later on and leak through into the interior of the building.

llVhile shingles that are irregular in thickness may make aroof that will shed wat-er, the root will not be tight against driving rain and. snow. Hence an object of the present invention is the provision or a machine for sawing splitsha-kes into shingles of the above described type that have butts all of approxi 0 mately the same thickness.

i further object of "he invention is a shake sawing machine that is arranged automatically to hold shakes of diiierent thicknesses and to saw from such shakes shingles having butts all of the predetermined thickness.

A. further object ot the invention is the provision of a shake sawing machine arranged to receive shakes of different lengths.

llnother object of the invention isthe pro- ;on of a shake sawing machine having t Lc clamping mechanism that engages the ke at a pluraliti oit dillerent places along its length and holds the shakein any one Vr' o or several predetermined positions with respect to Vthe saw.`

fr further object is generally to improve the construction and operation of shake saw- .nechanisni D y Specifically the invention comprises a shake supporting table which moves the shake against tie saw and has devices for holding the shake in such a manner that each shake is severed into two tapered shingles, all having the same thickness of butt, regardless of variations of thickness of the various shakes.

Fig. l is a plan View of the shake sawing mechanism embodying the present invention.

Fig. 2 is an end elevation of the mechanism of Fig. l.

Fig. 3 is a section taken'along line 3 3 of Fig. l.

Fig. l is al section taken along line 4 4 of Fig. l.

Fig. 5 is a section taken along line 5 5 of Fig. l.

Fig. 6 is a section taken along line 6 6 of Fig. l,

The shake sawing machine embodying the present invention comprises a device which holds the shake in a predetermined position as it is advanced against a saw. In the present instance, the device is associated with a band saw l0, which is preferred, although the invention can be applied to other forms of saws. The shake holding and advancing device comprises a horizontal table l2 which has guideways le secured to its under face and which run on rails 16 carried by the bed i8 to guide the table toward and away from the saw. The table l2 has a longitudinal saw slot 2O therein which extends from the forward end toward the rea-r end of the table and in which the saw operates. Removable upper and lowerplates 22, the upper one of which is shown in Fig. l, rigidly connect the two parts of the table on opposite sides of the saw slot and can be removed to permit the saw to be withdrawn from the slot.

The table is provided with a vertical rest or abutment 24 that is made of wood and is located at the rear end of the saw slot and is adapted to support the rear end of the shake 26 against the pressure of the saw as the table is advanced to move lthe shake against the saw. The shake-rest 24- is provided with a vertical slot Q8 which extends inwardly from the forward edge thereof and is in line with the saw slot 2O and is adapted to receive the ing bolt 88 carried by the table is located and by which bolt the bracket and consequently' the shake-rest can be secured in any desired position in the length of the table.

The. shake 26 is of generally rectangular r cross section and has the opposite faces 40 which present a natu-ral split or rived appearance. In accordance with this invention, the shake is supported on its narrow long edge on the table above and in diagonal relation with the saw slot and in such manner that the same amount of the thickness of the ends 'of all shakes of the same length, regardless' of their thickness, extends laterally beyond the saw slot, so that the shingles from all of the shakes have the same butt-thickiiess For this purpose, the shake is located between pairs of supporting and clamping devices which are disposed ahead of the shake-rest, on opposite sides of the saw slot and near the front and rear ends, respectively, of the shake. The front supporting and clamping kdevice includes an abutment or bumper 42 which has a vertically extended rigid mem-r ber 44 provided with an arcuate vertical face 46 that is adapted to beengaged by one of the broad split faces of. the shake. Said vertical-member 44 is rigid with a horizontal leg 48 that is slidable in a guideway 50 that is extended transversely ofthe length of the table on'one side of the saw slot 20. Said leg 48 `has a longitudinally elongated slot 52 therein in which a clamping bolt 54 'carried bythe table is located so that the abutment vcan be clamped rigid with the table at any desired distance from the saw slot, thereby to determine the thickness of the butt of the shingle containing the major part of the front edge of the shake.

The associatedclamping device includes a vertical pusher member 56 that is located on the 'side of the saw slot opposite. and in confronting relation with the abutment 42. Said pusher member preferably is of 'woodand has an arcuate face 58 which engages the broad vertical face ol the shake opposite-the abutment 42.- Said pusher member is secured to theiiace of a vertical metal plate 60 which is y' loosely hinged by a pivot pin 62 tc a hori- Zontallyunovable rod 64 so that said pusher member can oscillate to a certain extent in a vertical plane and thereby adjust itself to theirregular surfaces of the various shakes. The rod 64'. is slidably received in apertures ot' upstanding ears 68 of a supporting bracket 70 that is carried by the table. The rod 64 is-preferably of square oi' other non-circular cross section and the openings in the ears 68, or at least one ear, are correspondingly formed so that the rod can not rotate in said ears and is ythereby constrained to support the pusher member in vertical position. A compression spi-ing 72 encircles said rod 64 and bears against the outer ear 68 and against a pin 74 carried by said rod intermediate its ends whereby to urge said rod constantly toward the shake and thereby to clamp the shake between the pusher member and the opposing abutment member.

The sliake-smaporting and clamping device at the rear end of the shake comprises an abutment member 76 that is similar in construction to the iront abutment member 42 but is located on the opposite side ofthe saw slot and is arranged to engage the opposite side of the shake. A pusher member 78 carried by a rod 80 and constructed similarly to the above described pusher member cooperates rwith, the abutment member 76. A spring 8201i the red 80 acts on a pin 84 of said rod and against an upstaiiding ear of a supporting bracket 86 to press said pusher member against the shake and thereby clamp the shake between said pusher member and the cooperating .abutment member 76. The

springs

72 and 82 are under initial compression and act constantly to urge they pusher members in a clamping direction.

Actuating mechanism is provided to retract both pusher members or clamping devices concurrently away from clamping engagement with the shake and to hold them in such retracted position for removing the shingles sawn from the shake and'for introducing a new shake into positions* The actuating mechanism includes a rotary circular metal actuating plate 88 which is disposed 'in the middle of the table between the pusher member 56 and the'abutment member 76. Said plate 88 is'loosely mounted upon a horizontal wear plate 90 which rests upon the upper faceV of a block or standard 92 secured to the table l2 by bolts 94. Said plate 88 is rotatable in a horizontal plane on a vertically extended pivot bolt 96 which is carried by the table and the standard 92. Said plate 88 is provided with a handle 98 by which the plate can be rotated oroscillated. Said handle is provided with a spring-pressed latch pin 100 that rides overand can engage any one of the teeth of a ratchet'segnient 102 carried by the plate 90 thereby to hold the rotatable plate 88 releasably in any set position. The latch 100 can be released bya latch-release member 104 carriedrby and pivcted to the handle. Said actuating plate 88 is connected with the pusher member 56 through a lever 106 that is pivot'ed at its forward end on a bolt 108 carried by an upstanding post 110 which is the rear end thereof overlies said plate 88 and has a longitudinally elongated slot 112 therein in which an upstanding stud bolt or pin 114, see especially Fig. 6, of said plate is located. VJith this arrangement, the oscillation of said plate can reciprocate said lever freely. Said lever is provided intermediate its ends with a longitudinally elongated slot 116 through which the rod 64 of the pusher member 56 passes loosely. Said lever is located on the side ot the pin 74 opposite the spring 2 and is adapted to bear against said pin when the lever is moved in a clockwise direction, Fig. 1, thereby to retract the pusher member from engagement with the shake.

The oscillatory movement oic the actuating plate 88 also controls the rear pusher member 8. To this end, a bell crank lever 118 is pivoted on a bolt 12() of the post 92 and has a leg 122 which overlies the plate 88 on the side opposite the lever 106. Said arm has a longitudinally elongated slot 124 in which a stud bolt or pin 126 ot said plate is located. The bell crank lever has another arm 128 which has a longitudinally-elongated slot 130 thereof an elevated horizontal lever 138 which eX- tends transversely of the table at the rear end thereof. Said lever is pivoted in the middle thereoiiv on a bolt 140 carried by an upstan'ding bracket 142, see especially lEig. 2, which straddles the guideway for the shake-rest E24-and is secured on opposite sides of said guideway to the table. v The other end orP said lever 138 is'pivotally connected by bolt 143 to the rear end of a link 144. Said link y*eX- tends forwardly in generally parallel relation with the side orA the table opposite the irst link and is pivoted on a bolt146 connected with an arm 148 of a bell'crank lever 150. Said bolt 146 is adjustably located in a slot 152 of said arm of said bell crank lever in a manner similar to the arrangement of the bolt 132 and for the same purpose. rlhe bell crank lever 150 is pivoted on an upstanding bolt 154 of a post 156 carried by the table and has a forwardly extended arm 158 that is pivotally connected by a bolt 160 to the. rear end ot an actuating lever 162 `.For the pusher member 7 8. VSaid lever entends along the length of the table and the forward end there* of is pivoted on an upstanding bolt 164mv the post 166. The pusher rod 8O passes through an intermediate portion of'said lever 162 g and said lever can bear against the spring retaining pin 84 thereof, whereby to move i said rod against the force of the spring and thereby withdraw the pusher member from engagement with the shake. The arrangement of the links and levers is suoli that both pusher members can be retracted at the same time and held in retracted position to permit a new shake to be inserted in position. The springs of the pusher members automatically move the pusher members against the shake when the latch pin ol the handle is disengaged from the ratchet.

With this arrangement, the pusher members can hold the shakes of various thicknesses against the cooperating abutment members without adjustment.Y Since the distance from the abutment members to the path of the saw remains liXed, regardless of the thickness of the shake, it follows that the thickness oi' the butts of the shingles formed from shakes oiidiflerent thicknesses is the same regardless of variationsin thickness of the shakes. Shingles having butts of different predetermined thicknesses can be made by the present apparatus by properly positioning the abutment members with respect to the path of the saw. Shakes of different lengths can be formed into shingles having the same butt thickness by a suitable adjustment of the shake rest 24. v

l claim:

1. In a shingle sawing machine, a device for holding a shake at a diagonal to the saw path so that the shake is severed intotwo tapered shingles, said device comprising a forward abutment which is located on one side of the saw path and is adapted to 'be enga-ged by the forward portionof one broad face of the shake, a rear abutment which is locatedV on the opposite side of the saw path and is adapted to be engaged by the rear portion of the opposite broad face of the shake,

yand clampingdevices which oppose said abutments on opposite ysides of the saw path and 'are normally biasedfor' holding the shake against said abutments, and means for holding said clamping devices in an inoperative position for permitting a shake to be inserted between them and said abutments and also for releasing said devices to engage the shake.

2. In a shingle sawing machine, a device Vfor holding a shake at a diagonal to the saw path so that the'shake is severed into two tapered shingles, said device comprising a forward abutment which is located on one side of the saw path and is adapted to be engaged by the, forward portion Vor the broad face of the shake, a rear abutment which is located on the opposite side of the saw ,path and is adapted to be engaged by the rear portion of the oppositebroad face of the shake,

springau'ged clamping means normally biased to :torce the shake against said abutments, and means for lockingboth clamping ce 7ices releasably in retracted position.

v3. In a shingle sawing machine,'a. device `for holding a shakeat a diagonal to the saw path so thatk the sha-ke is severed into two tapered shingles, said device comprising a forward abutment whichis located on one side ofthe saw rpath and is adapted to be engaged by the forward portion of onebroad yface of the shake, a rear abutment which is located on the opposite side of the saw path vand is adapted to be engaged by the rear portion'of the opposite broad face of the shake, spring-urged clamping means normallyV biased to force thefsliake against said abutments, and zreleasable retaining means for saidV clamping means which holds said clamp-V ing means in a shake-free position against the urge of said springs so that a shake can be inserted between said clamping means land ,abutments 4. In a shingle sawing machine, a device for holdinga shake at a diagonal to the saw path so that the shake is severed into two tapered shingles, said device comprising a forward abut-ment which is located on one side of the saw path and is adapted to be engagedby the forward portion of one broad face `of the shake, a.l rear abutment which is located on the opposite side ofthe saw path and is adapted to be engaged by the rear portion of the opposite broad face of the shake, spring-urged clamping devices which oppose said-"abutments on opposite sides of the saw path and are normally biased for holding the shake against said abutments, and releasable retaining mechanism connected with .said

clamping devices for retracting both concurrently and for holding them in a shake-free position against the action of the springs.

5. In a shingle sawing machine, a device for holding a shake at a diagonal to the saw path so that they shake is severed Vinto two tapered shingles, said device comprising al'novable sh ake-supportingtable havingyarestf which-is engaged by the end of the shake and `front and rear shakel supporting abutments disposed on opposite sides of the saw path and between and against which the shake is .adapted to be located, clamping devices which oppose said abutments onv opposite sides kof the saw path for holdingk the shake against said abutments, spring-means for ,urging said clampingdevice toward said abutment-s, a pivoted lever associated with each clamping'device for moving it positively away from its cooperating abutment, and

mechanism for retracting both of said clamping. devices l 'concurrently against the action of said spring means including a rotating handle located at one side of thesaw path and having a direct connect-ion with one lever, and link and lever mechanism connecting said ,handle wit-h said other lever.

v6. In a shingle vsawingdevice, a shake supporting table having a saw slot, a shake-rest at one end of saidl slot, means for securing said'restin any one of several positions along the length of said slot, front and rear shakesupporting abutments located on opposite sidesof said saw slot forwardly of said rest, means for securing said abutments in any one of several locations which are differently spaced from said saw slot and for positively holding them against movement lengthwise of said slot, spring-urged clamping devices confronting said abutments on opposite sides of said saw slot, an operating handle forsaidclamping devices, link and lever mechanism connecting said operatlng handle and clamping devices for retracting both of said clamping devices concurrently and for permitting them Vto bear on a shake independently ofk any pressures on said handle, and means for lockingsaid clamping devices releasably in retracted position comprising releasable locking means for said handle. p

7. In a shinglesawing device, a movable shake-supporting table having shake clamp-y ing means including a fixed abutment on one side of the saw path, a vertical clamping foot movable toward and away from said abutment on the other side of Said saw path, a horizontal supporting rod having a pivotal connection withsaid foot in the vertical middle thereof so that said foot can swing on both sides of the pivot, a bracketin which said rod is slidable, a pivoted lever engagingy rod is slidable, a pivoted lever engaging said rod for moving it positively away from said;

abutment, a spring encircling said rod for i moving it toward said abutment-independently of any actuating pressure on but under control of said lever, and a pivotedvhandle having a pin and slot connection with said lever for actuating it. n e

9. Inra shingle sawing device, a movable shake-supporting table having a saw slot and a shake-rest at one end thereof, front and rear shake-supporting abutm'ents carried by said table infront of said rest on opposite sidesofsaid slot, shake-clamping devices opposing said abutments on opposite sides of said slot and movable toward and away from V'said abutments, springk means urging said clamping devices toward said abutment's, and

actuating mechanism for retracting saidy clamping devices comprising a pivoted actuating plate having an actuating handle, a pivoted lever connected with one of said clamping devices and vhaving a pin and slot connectionwithsaid plate, a second pivoted lever connected with said other clamping `device, a pair of bell crank levers one having a pin and slot connection with said plate and the other with said second lever, a third lever pivoted intermediate its ends and lo-` cated in the rear of said rest transversely of said table, and links connecting said bell crank levers with the opposite ends of said thrustlever, and means for holding said han= dle rcleasably in an actuated position.

10. A shingle sawing device comprising a movable shake-supporting table having a saw slot, iront and rear shake-supporting abutments located in spaced relation lengthwise oit' and on opposite sides of said saw slot, shake-clamping members confronting said abutments on opposite sides of said saw slots, springs for urging said clamping members toward said abutments, pivoted levers for moving said clamping members away from said abutments and for compressing said springs, means including a rotatable member having operative connections with said levers for moving them in one direction to permit said springs to move said clamping members toward said abutments and in the opposite direction to retract said clamping members, and ratchet mechanism to hold said rotatable member in any set position corresponding to it retracted position of said clamping memers.

In testimony whereof, I have signed my name to this specification.

MAURICE T. WHITING.