US1440650A

US1440650A - Power setworks

Info

Publication number: US1440650A
Application number: US503829A
Authority: US
Inventors: Walton John
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-09-28
Filing date: 1921-09-28
Publication date: 1923-01-02
Anticipated expiration: 1940-01-02

Description

3 SHEETS'SHEET 1 INVENTOR,

ATTORNEYS" 1! 2 '9 s .l .m. 8 m m2 TT M W S 9 .HS J w OD m H Jan. 2, 1923.

3 SHEETS-SHEET 2 Jo H N We L- To 14 I INVEAITOR I ATTORNEYS.

" 7 BY M... rw Kama,

Jan. 2, 1923. 1,440,650

Poja n lv xs I I FILED SEPT, 28, 1921 l 3 SHEETS'SHEET 3 INVENTOR, JOHN WRL TOM BY fi m- 6 7c 14 x. Mn.

' ATTORNEYS den. 2, 1923.

earner JDHN 1V ALTON, F TEILWAUKEE, WISCONSIN.

POW/ER SETWORKS.

Application filed. September 28, 1921. Serial No. 503,829.

To 0 r/"u/m. it may concern it known that l" Jenn W Zen of the United States res at hi'iilwaukee, in the coun-; of Mile. wee and State of lVisconsin. have invented certain new and useful improvements u Power Setwo lrs, of which the following is a specification reference being had to the accompanying drawing, forming a part thereof.

This invention relates to power set works in which a home stop cooperates with a setting arm and ratchet wheel to arrest the advance of the knees at predetermined points independently of the power connection with the set shaft. I

its main objects are with a ratchet wheel of pract ble size for setting at one revolution thereof for lumber within cert-aindimensions say from one to six inches, to provide for setting for larger dimensions say over six inchs. requiring more than one revolution of the ratchet wheel, by a continuous movement of the set shaft and knees. and generally to simplify and improve the construction and operation of set works of this class.

it consists in the construction, arrangement and combination of parts as hereinafter particularly described and pointed out in the claims.

the accompanying drawing like char cters designate the same parts in the severa figures.

Figure l a. vertical. section of set works embodying the invention as applied to a sa vmill carriage, which shown in cross section. Fig. 2 is a reduced vertical section on the line f22, Fig. 1, of a power driving con nection for advancing and receding the knees; Fig. 3 is an enlarged horizontal section on the line Fig. 1, of the hand-operating lever, showing a spring clip for holding it in central position; Fig. a is a plan view on an enlarged scale of the stationary gage plate or ring and the rotary lumber scale dial; Fig. 5 is a plan view of the ratchet wheel, setting arm and home stop, with the gage plate and dial removed; Fig. 6 is a side elevation of the plat-c and dial and a cross section on the line 66,

5, of the setting arm; Fig. 71s a plan Fitz. view of a contact or abutment member pivotally mounted on the setting arm to cooperate with a gage stop on the gage plate Figs. 8 and 9 are a plan VlGW and side elevaresp etively. of candid: form home stop; Figs. 10 and llare' like views of another modification of the home stop; and Figs. 12 and 13 are like views of still another modification of the home stopl Referring to Fig.1., 1 designates a set shaft mounted in the usual manner lengthwise 011a carriage frame 2, and provided with a bevel gear 3. l

The carriage is provided with truck wheels 4% and 5, of the usual or any suitable construction.

For the operation of the set works by power, a driving shaft 9 is mounted in bearings on the under side of the carriage frame below and transversely to the set shaft, and provided with a rope or cable sheave 10, and with a paper or drivingfriction wheel 11, The driving friction wheel 11 is arranged to cooperate with concentric cylindrical rims 13 andl of a metal friction wheel 15, which is mounted on the rear end of a shaft 16 above and parallel with the shaft 9 and provided at its front end with a bevel pinion 17,'1neshing vvitl1 the gear 3.

As'shown in Figs. 1 and 2, the driving shaft 9 adjacent the friction wheel 11, is mounted in an eccentric bearing 19, provided with an arm 20., which is connected by a rod 21- witli a lateral arm of a'hand operated lever 22. The driving friction wheel 11 is movable by the lever 22 from a mid head blocks 6 and knees 7,

die neutral position into engagement with the. rim 13 or the rim 14 of the driven friction wheel, for advancing or receding the knees 7. The lever 22, as shown in Figs. 1 and 3, is held normally byengagement with a. seator depression in a spring clip or support 2e in a central or neutral position with the driving friction wheel 11, which is con.- stantly rotated when the carriage is in use, out of contact with both rims 13 and 14t A hollow stand or colunm 26, is mounted on the carriage frame 2 over the bevel gear 8 on the set shaft, and'is provided in the upper and lower parts thereof with removable aligned bearings 27 and 28, which are fastened in place in the column by bolts or screws 29 and 30. f

A tubular shaft 32, mounted in said bearings, is provided at its lower end with a bevel pinion33, meshing with the gear 3. A ratchet wheel 35, said shaft above the column, and a pawl carrier or setting arm 36 is journaled on the hub of the ratchet wheel coaxially therewith.

is keyed orfixed on more pawls 38, pivotally mounted therein adjacent the toothed rim of the ratchet wheel by a pin 39, which is provided at its upper end with a crank handle l0, i manually throwing the pawl out of enga e rent with the ratchet wheel and turning he setting arm on the ratchet wheel. Spring i9:

tends to hold the pawl in engagement with the teeth of the ratchet wheel.

in annular or circular plate 4-- lreyed or fixed to the upper end ot' a tulm- 1211' post to, extending downwardly through the tubular shaft 32 and provided at its lower end with collar which is releasably fastened by a bolt- 1? to the base of the column, to hold the gage plate from turning.

As shown in l, at and t3, the page plate t l is provided with one or more pins or stops 49. removably fitting any of a circular series oi holes 50, shown in Fig". i, corresponding in numb-e" and arrangement with the teeth oi the ratchet wheel.

in abutment or contact member 51, pivotally connected by the pawl pivot pin 35 with the setting arm 36, is yieldingly held by a spring against a shoulder 53 on the setting; arm, as shown in Figs. 1. 5'3, 6 and 7.

Directly over the plate ell, a dial 5'" is mounted on the upper end oi? a. shaft 56. passing' downwardly througlji the tubular post 45 and provided at its lower end with a oevel g'ear 57, which meshes with a similar gear 58 mounted on the set shaft 1. or attached concentrically therewith, to the gear 3.

The dial is provided as usual. with a number of concentric scales for sawing lumber of different dimensions the width of the saw ke'rf being taken into account in these scales. except in the outer scale which shows the distance of the knees "from the saw plane ii dicated by a stationary index or pointer 59, flattened to the n e plate "2'? and ex; tending}; umvardly therefrom and inwardly over the dial, as shown in Fi l and 4 The gear 5'? is detachably fastened. as by a pin 61, to the shaft 5-6, so that by removing the pin and the bolts or screws 29, 30 and 45:", the ratchet wheel 35. setting; arm 36, gage plate 4 1 and dial 555, with the shafts and 56, post 45 and bearings 2'? and 28., nev be with drawn bodily upward from the stand or column 26.

. The set works is provided with a home stop for exactly limiting the advance movement of the knees by the set-ting mechanism at different points determined by the ad justment of the gage stop 49 on the green plate ddflvhifih in turn determines the startine; point of the settino; arm, 36 for setting? lumber of any given dimension. This home stop is movable into and out operative position in the path of the settinn; arm 36 to permit more than one revolution of the ratchet wheel at a time, for saih oi? any dimension exceeding the i revolution of the ratchet wheel and setting arm.

shown in r 1 mg .L. 00 11 ler at outer vertical shaft ro ainst th'.

lly pro is the plunger nor iner o pen end 0 n The cylti'tute an air cushion inal advance movement oi? the setting; arm 36 and preventin recoil. and shock or jar in the operation o he setti mechanism when the setting a. 1-"! is hrou to its final position against the home stop. Tie shatt- (i l on which the home stop swings is extended below its hearing' in the column extension and is provided with a spring 7 which tends to swing the arm 63 inwardly and to the plunger 68 into and hold it in the path oi: the setting arm 36 with a stop lug on the hub of the arm in engagement with av stop pin or lug 76 on the extension 55 as shown in Fig. 5.

for checking by screw or adjustable valve 77, controlling avent passage in the closed end of the cylinder.

The cylinder extension 70 serves as a handle for turning: the home stop outwardly into inoperative position as shown in L its o'iovemt-int in this directioi'r being; limited by the oi a stop lug 78 on the hub of the arm 63 with the stop pin or lug T6.

Referring to Figs. 8 and f) in place of the air cushion cylinder and ilunger shown in Figs. 1 and 5. the arr'i 6?: of the home stop may he provided with an upwardly projectine abutment b0 having a handle 8. and movable into and out of operative position in the path of the setting arm.

ieterring to F 10 and 11, the home step may consist simply of post 83, which may be fitted to slide up and down inthe column extension 65 into and out of opera-- tive position in the path ot the setting arm 36. A compression spring 84, interposed hetween the lower end of the post and a stationary support below it, tends to thrust the post upwardly and hold it in operative position. it is moved downwardly out of operative position by a hand lever 85.

Referring to Figs. 12 and 13, the home l l (l t consist of an arm or post 87, pro v ded 21' its upper end wi h a handle 88, and pivoted its lower end to the column 26 or other convenient stationary support, so as to be swung into and out of operative position in engagement with a shoulder or seat formed in an extension 65 on the column A spring detent 89, vieldingly holds the arm or post 87 in operative iosition.

In the operation of the set works. knees advanced by swi ing the leve n2 'li'orward, thereby carrying the constaiwy rotated driving :triction wheel 11 gementwith the rim 13 ot the driven wheel 15. and the knees are receded pull nthe lever backward, therel be driving wheel 11 into emgageh the rim l4: oi the driven wheel. .I neutral position, as shown 1:. .3. i iving wheel 11 is out of enasement with both rims 13 and 1d of the seting mechanism.

with )Oi'll the advance and recediuc' moverents of the lrnees the ratchet wheel. and the dial 55 are turned in corresponding directions by their connections hereinbetore descrited, with the set shaft 1, the movement of the lcnees in setting and receding being effected by a direct connection through the shat l6 andiriction wheels with the driving sh aft 9, independently of the operation of the ratchet wheel 35, settingarm 36 and dial 55, which simply determine the extent of the advance movement of the knees for cutting lumber of different dimensions.

For cutting lumber of any dimension within the limits of asingle revolution of the ratchet wheel and setting arm 36, say from one to six inches, the setting mechanism operates in a manner similar to that 0'? power set works of this type. It, for example, an inch board is to be sawed from a twelve inch piece of timber which is set up with the lrnees to the saw plane, as .indicated on the outer scale of the dial 55,

the e pin or stop d9 is-placed in the hole 50 of t e gage plate l i, corresponding with that dimension. The setting arm 36 is then swung backward with the handle 40 by which the pawl 38 is turned, and held out of engagement with the teeth of the ratchet wheel, till the abutment or contact member 51 on the setting arm, engages the gage pin or stop 49, as shown in Figs. 5 and 6. The handle e0 being released, allows the pawl 38 to be thrown by the spring 42'into engagement with the ratchet wheel, locking the setting arm thereto in its initial position for setting. The setter then throws the lever 22 forward, carryingthe driving triction into engagement with the rim 13 of the driven friction, which thereupon through the connections hereinbetore described,

moves the knees 7 forward on the head hlochs 6 till the setting" arm 36 is brought into engagement with the home stop, and the advance movementof the knees controlled thereby is arrested at the exact limit in setting}; for lumber of any dimension.

exceeding the limit of a single revolution of the ratchet wheel 35 and setting arm 36, at the end of a'complete revolution ofthe setting arm from its initial position, the abutment or contact member 51 striking the op-'.

posite side of the gage pin or stop e9, yields backward against the tension otthe spring 52 till it passes the gage pin or stop, whereupon it instantly returned to its normal position against the shoulder by said sprin This avoids he necessityht care and attention on the part. of the setter to withdraw the gage pin or stop in order to permit the setting arm to make more than one complete revolution, and in case heneg lects to dose, prevents breaking ing the setting mechanism,

In case a piece of lumber is to be cut of a dimension above the limit of a single revolution of the ratchet wheel 35, say apiece eight inches thick, 2. single revolution ot the ratchet wheel representingisix inches, the gage pin or stop 4:9'is placed in'a hole corresponding with .two inches, the setting arm 36 is t'urnedbaclr betoie against the gage pin or stop, the home stop is swung out of operative position with the stop lugfid against the stoppin or lug- 76,. andpowcr is applied to the set works asbelfoi'e; As soon as the setting arm passes-toe home stopthc home stop. is released and returned by the spring 74L to operative position in the path of said arm, the setting arm continuing to turn with the ratchet wheel till it has completed a full revolution 'atter'passing the home stop, whereupon it is broughtinto engagement with. the home stop-and its further advance arrested as betore' The .kneesare thus advanced by" continuous operation, a distance represented by one complete revolution of the ratchet wheel and setting arm, plus the traction oi a revolution represented by the adjustment of the gage pin or stop 49, as above explained. I; V

For cutting a piece 01"- lumberot still greater dimension, requiring two or. more revolutions of the ratchet wheel and setting arm, the procedure is the. same, except that the hcune stop is held by the setter out of operative position till the setting arm passes it two or more times.

The operation of the set works with the home stops illustrated in Figs. 8 and 9, and 11 or 12 and 13, is exactly the same that hereinbefore described connection with the cushion stop, except t at the movement of the setting and ratchet wheel is instantly and abrtuptly arrested without the check afforded by the form of stop shown in Figs. 1 and 5. v

Various changes in the deails of cons tion and arrangement of parts of tie mechanism other than those described, may be made, without departure from the principle and scope of the invention as defined in the following claims.

I claim:

1. In power set works the combination of a set shaft, 21 power connection. with the set shaft, a ratchet wheel having a constant actuating connection with the set she: a setting arm coaxial with the ratchet wheel, means for locking the sett' "1g arm to the ratchet wheel in predetermined. angular relation thereto, and a home stop movable into and out of the path of the setting 2. In power set works the combination of a set shaft, a power connection with the set shaft, a ratchet wheel having constant actuating connection with the set shaft, a setting arm co-axial with the ratchet wheel, means for locking the setting arm to the ratchet wheel in predetermined an lar re lation thereto, a home stop movable into i out of the path of the setting arm, and means tending to shift said stop into and retain it in the path of said arm.

3. In power set works the combination of a set shaft, a power connection with thc'set shaft, a ratchet wheel having a constant ac tuatinp; connection with the set shaft, a setting arm coaxial with the ratchet wheel, means for locking the setting arm to the ratchet wheel in predetermined angular relation thereto, and a home stop movable into am;L out of the path of the setting; arm and comprising; a yielding contact member adapted to check the final advance movement of said arm as it comes to rest.

4. In power set works the combination of a set shaft, a power connection with the set shaft, a ratchet wheel having a constant ac tuating connection with the set shaft, a setting arm coaxial with the ratchet wheel, means for locking the setting arm to the ratchet wheel in predetermined angular relation thereto, and a home stop movable into and out of the path of the setting; arm and comprising a yielding contact member adapt ed to oppose increasing resistance to the ad Vance of the said arm as it approaches its final position. s 1

5. 111 power set Works the combination of a set shart, a power connection with the set snafu, a ratchet w ieel having a constant actuating connection with the set shaft, a set t H arm co. l with the ratchet wheel, means for locking the setting arm to the ratchet wheel in predetermined angular reation thereto, a home stop movable into and out of the path of the setting arm and coma yielding member opposing in its 'e position increafl resistance to (-e movement of said arm as it so is final position, and means tendi shift said stop into operative position. 6. in power set works the combination of raft, a po ner connection for actuating); et shaf a ratchet wheel having a con actuating connection with the set shaft, a settino arm rotatably mounted coaxiallv with the'ratchet wheel, means for releasably engaging the setting arm with the ratchet wheel, a stationary gage plate coaxial with the ratchet wheel and setting arm, a gage stop adjustable on the plate for deter mining the initial position of the setting arm, a contact member mounted on the set ting arm and movable into and out of oper ative position to be arrested by the gage stop in one direction and permitted to pass it in the other direction, and a home stop movable into and out of the path of the setting arn 7. in power set works the combination of set shaft, a power connection for actuating the set shaft, a ratchet wneel having a constant actuating connection with the set shaft, a setting; arm rotatably mounted coaxially' with the ratchet wheel, a stationary gage plate coariial'with the ratchet wheel and setting arm, a stop adjustable on the gage plate for determining the initial position of the setting arm, a contact mem ber mounted on the setting arm and movable into and out of operative position to be arrested by the gage stop in one direction and permitted to pass it in the other direc tion, means tending to shift the contact member into and to hold it in operative position, and a home stop movable into and out of the path of the setting arm.

8. In power set works the combination with a set shaft, a hollow supporting column located over the set shaft, bearings removably mounted in the upper and lower parts of the column, tubular shaft mounted in said bearings and geared with the set shaft, a ratchet wheel fixed on said shaft above the column, and a rotary setting arm, a stationary gage plate and a rotary lumber scale dial mounted coaxially with the ratchet wheel on thecolumn, and removablethera with and with said tubular shaft and bearings bodily from the column.

in witness whereof 1 hereto afix my signa;

ture, 1

JOHN i/VALlON.