US365512A - glade - Google Patents

Description

(No Model.) 5 SheCts--S'heet 1.

C. GLADE.

CIRCULAR SAWINC MACHINE..

No. 3C5,512. PatntedJune 28%1887.

(No Model.) 5 Sheets-Sheet 2. C. GLADB.

CIRCULAR SAWNGMAGHINE.

lllllllll Jl'fll PatQnteQJuwne 2%8, 1887.

NA Pneus. mnu-ummm. wnmngxm u` f 5 Sheets-Sheet 3.

(No Model.)

@.GLADB.

CIRCULAR SAWING MACHINE.

Patented Jne 28, 1887.

(No Model.) 5 sheets-sheet 4. `C. GLADE. GIRGULAR SAWI-Ner MACHINE.

Inv e n flor Illvllll jp/t ofney (No Model.) sweets-sheet 5.

'0. GLADB.

CIRCULAR SAWING MACHINE. No. 365,512. Pateted June, 28, 1887..

Witnesses. Y v i Inventor,

Y l filtern/61g.

N. PETERS, huwlipgwphtf. Washington ILC.

' UNITED STATES PATENT OFFICE.

oLAus eLAnE, or DREYE, NEAR BREMEN, reussir., GERMANY.

CIRCULAR sAwlNe MACHINE.

SPECIFICATION forming part of Letters Patent No. 365,512, dated June 29, 1887.

Application filed February 17, 1886. Serial No. 192,250. (No model.) Patented in Germany October 25, 1883, No. 27,439, July 1,

1884, N0. 29,817, and March 2Q, 1885, No. 32,725.

To all whom it may cocer:

Be it known that I, CLAUS GLADE, a subject of the King of Prussia, residing at Dreye,

near Bremen, have invented certain new'and i useful Improvements -in Sawing-Machines,`

(for which Letters Patent have been granted in Germany under dates of October 25, 1883, No. 27,439, July l, 1884, No. 29,817, and March 22, 1885, No. 32,7255) and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which 1 it appertains to make and use the same, refer- 1 ence being had to the accompanying drawings,

and to letters of reference marked thereon, which form a part of this specication.

This invention relates to that class of woodworking machines more particularly designed ,for cutting thin boards, such as are usually employed in the manufacture of cigar and other like light boxes.

The invention has for its object certain improvements in the constrnctionof the class of machines referred to; and it consists in the construction, arrangement, and cooperation of parts, substantially as hereinafter described, y

and as set forth in the claims.

Referring to the annexed drawings, in which like letters of reference indicate like parts, Figure l is a side elevation, Fig. 2 a left end elevation, partly in section, and Fig. 3 a par.

frame, showing a portion of the means for adjusting the gage-plate g'.

In the above drawings, G indicates the main frame, provided with suitable bearings for the arbor a of a circular saw, b, upon whicharbor are mounted a fastfand a loose `belt-pulley, c and d, respectively, las shown in Fig. 2. The

to'p or table-cof' the frame G is slotted or in-A has two lateral brackets, f and y, one at each end thereof, to which is secured a cheek-piece or rail, h, that is provided on its upper face with a dovetailed groove, in which is fitted a correspondiugly-shaped rail formed on the under side of a carriage, i, that has a traversing motion over the said rail h. rlhe traversing movement is imparted to th carriage by means of a screw, k,that passes n centrally along the under side of said carriage and works in a nut, m2, formed on or secured to said under side of carriage i, as shown in dotted lines in Fig. 3. The screw la has its bearings in the opposite ends of the rail h, and ish eld against longitudinal movement by a nut, mt, and a check-nut, m5, as shown in Fig. 3.

It is obvious that if the screw 7c is rotated in the proper direction the carriage z' will be moved toward the saw b, and that if this rotation of the screw is reversed the said carriage will be moved in a reverse direction, or

vaway from the said saw.

- It is also obvious that if the carriage is moved at a proper speed to feed the wood to the saw, and at a greater speed when said car' riage moves away from said saw, a material saving in time is thereby effected. To this end I have devised means not only for imparting to the carriage a greater speed in a direction away from the saw than that toward the saw,but also means whereby the reversal ofthe traversing motion is effected automatically, as follows:

On the outer end of the screw 7a is mounted a fast pulley, C', and on opposite sides thereof a loose pulley, G and CX.

A shaft, S, carries two driving-pulleys, b

52, the latter pulley having a diameter twice as great as the diameter of the pulley b; and R and R are the two driving-belts, the former belt being a straight belt, while the belt R is a crossed belt.

The carriagez' receives its traversing motion to the saw through the pulley b and belt It, and from the saw through the pulley b2 and belt R, so that the motion of the carriage i in a direction away from the saw is twice as great as that toward said saw.

The belts R and R may be automatically shifted from either of the loose pulleys C or Cx onto the fast pulley C between them, to etiect the reversal of the traversing motion of the carriage by mechanism which may be arranged and constructed in any suitable manner.

In Figs. l and 2 I have shown one convenient arrangement of such mechanism,` which is constructed and arranged for operation as follows:

m is a slideebar having at opposite ends a bracket-bearing, 1n7 m8, respectively, through which the shifting bar or rod n passesloosely.

To the bar m are secured the beltshifting forks Z and m, and on said bar is secured a pin, I?, Figs. 2 and S, that projects into avertical slot, zt, formed in a shifting-lever, e3, fulcrumed to the main frame, as shown in Fig. 1, by means of which lever the belts R and R may be shifted from the fast pulley C onto the loose pulleys C Cx, to disconnect the driving-screw k from the driving-shaft.

In the outer ends of the bracket bearings or arms m7 and ma are formed bearings in which are loosely mounted flan ged sleeves llIT and MS, respectively, so arranged that the flanges thereof will abut or bear against the inner face of the bracket-arms, as more plainly shown in Figs. 3 and S.

Through the sleeves lll7 and MYS passes a rod, a, that is secured to bracketarms a* and a5, rigidly connected with the beltshifting bar n, and on said rod between the tianges of the sleeves M7 M8 is mounted a coiled spring, q.

Near the opposite ends of the belt-shifting rod n, which slides in suitable bearings formed ou or secured to the main frame, are mounted lugs o and o', that lie in the path of an arm or lug, p, secured to the carriage z', said lugs o and o being adjustable on the rod n, so as to provide means for adjusting the amplitude of the traversing motion of said carriage The operation of the belt-shifting devices may be briefly described to be as follows: As the carriage 1I is about to reach the limit of its traversing motion toward the left or in the drection of the saw, the arm p will engage with the lug o, thereby drawing the rod n in the same direction. During this motion of the rod n its arm a will come in contact with the end of sleeve M7, while the bracket-arm at will move away from the end of sleeve M8, Figs. 3 and S, the spring q being compressed between the tiangcs of the sleeves. The pressure of the spring exerted upon sleeve MS will move the latter, the slide-bar m, and the belt-shifting forks l and m in the same direction, the belt R being moved from loose pulley CX onto fast pulley C', while belt R is moved from fast pul ley C onto the left-hand loose pulley C, this operation being reversed when the arm p engages the lug o on the ri Oht end of carriage Upon the carriage are arranged supports r for the block of wood to be cut. These supports are interchangeable to support blocks of wood of different sizes in such aposition that the cutting is always effected at the highest possible point ofthe circular saw.

The supports or bearings for the block c are secured in position by means of bolts and nuts, which bolts pass through suitable slots in the carriage t'.

The block c is secured to its supports by means of the following devices: At opposite ends of the table is secured a slotted standard, s, from the upper end of which projects an arm, S5, in which a shaft, a, has its bearings.

To the shaft a, near each end, is secured a lever or link, t, provided with a screw-threaded piu or bolt,w",that passes through the vertical Slot of a support, w, that is provided with a screw-threaded pin or bolt, s, that projects into the vertical slot of the standard s, said pinsw s4 being secured in position on the supports and standards by means of nuts,as more plainly shown in Fig. l0.

In the slotted supports w are formed bearings for a shaft, x, on which are secured adjustably the blocking-dogs y, by means of which the block of wood to be sawed is secured to the carriage i.

It will be observed that by means of the construction and arrangement of the devices above described the blocking devices may be adjusted vertically within the limit of the slots of the standards s and supports w by loosening the nuts on the pins ws and raising or lowering the supports w and shaft x on the standards s, and by means of the hand-lever t, secured to shaft a, the supports w and shaft may be tilted by hand to disengage the dogs g/ from the block of wood, the shaft a having a fixed bearing in the arms S5 of standards s, and the pin s4 serving as a fulcrum for the support w.

To save the labor of dsengaging the block of wood from the blocking-dogs y y by hand every time a board has been sawed off, I have devised means whereby this may be effected automatically.

At its left end the shaft .e carries a radial arm, c, to which is secured a screw-threaded pin, Z, that projects into a vertical slot of a link, w', to which it is pivotally connected by a nut or nuts. The lower end of the link w is pivoted to a radial arm, a, secured to a cross-shaft, b, that has its bearings at the left end of the carriage To a rock-lever, c', on the outer end of shaft b" is adjustably secured a weight, d, through which the shaft b is held in such a position that the blocking-dog y will be held in engagement with the block of wood e', as will bc readily understood.

In the side of the rail or cheek-piece h of the frame is formed a slotted guideway, h2, in which is adjustably secured a slide that has an inclined projecting ledge,f, which lies in the path of the weight d. As the carriage moves toward the saw, away from the ledge IOO IIO

" justing-Screw, o2, and hand-wheel p thereon.

or projection f', the dogs y y remain in engagement with the block of wood e andhold the same firmly on the carriage. When the traversing `motion of the latter is reversed, after a board has been sawed off, the weight d rides up the inclinef, thereby rocking the shaft b from left to right. This lilts the link w', and through the latter the shaft or is rocked to llift the dogs y y out of engagement with the block of wood e'. As the weight d reaches the highest point of the incline the carriage i has also reached the limit of its reverse traversing motion, when the block of wood may be adjusted relatively to the saw, as hereinafter described, to cut another board. A s the carriage t again moves toward the saw, the weight d slides down the incline f', and be fore the block of wood comes in contact with the saw said block will again be firmly held to the carriage by the blocking-dogs.

.Thelateral adj ustmentofthe block ofwoodz'. e., the adjustment of the block of wood toward the saw-is effected by means .of a gageplate, g', and screw k', as follows:' The gageplate g is secured to a T-shaped foot-piece or support, G3, that is pivoted at one end, as shown at c', to a carriage,i, that slides in a dovetailed guideway, h',l Fig. 2, formed in thc frame ot' the machine. The carriage has an interiorly-screw-threaded lug, 1*, in which operates the adj usting-screw k', that carries a hand-wheel, Zsaid screw k being held against endwise movement in said lug Z4, and a collar, D', hereinafter referred to, which collar bears Von the outer face of the rheek-piece or rail It the plane of motion'of the saw. When, however, an undressed block, orblock having an uneven surface, is to be operated on, it is necessary to square it trst, and to effect this means should be provided to adjust or set theblock at any desired angle to the direction of motion of the saw. To this end I pivot the gage-plate g at oneiend to thecarriage, as described, and adj ust the same to position by means of an ad- The screw oT works in a threaded bracket, a', formedon the foot-piece G3 at the end opposite to the pivot v', said screw being held against endwise motion by means of a nut and check-nut in suitable bearings formed in the frame of the machine, the gage-plate being guided in this movement by the pin m', projecting through the slot M', formed in the support or foot-piece G3 of said gageplate, as above set forth.

It will be observed that by means of the described .devices the carriage i, the plate g', and its support G3 are adjustable together in one direction, and the support G3 and its plate g are adjustable independently of the carriage t" on the pivot v.

In addition to the arrangement for setting the gage-plate at an angle to the direction of motion of the saw in dressing or squaring a block of wood, I alsoprovide means whereby a block of wood having an uneven surface may`r be squared by first cutting oft'a slab therefrom. rIhis I accomplish by means of screws q q2, having a thread of great pitch, said screws `working in threaded bosses formed on the gage-plate g. One of these screws is connected by a radial arm, r', to a link, s', which link is pivoted to a lever, R', mounted on the screw q2. The arrangement is such that when the lever is moved in one direction the end of the screws will project to a certain extent from the face-plate g', and when said lever is rotated in a reverse direction the said end of vthe screws will be withdrawn in the bosses. This arrangement is shown in Fig. 2 and in dotted lines in Fig. 1. f.

In order to more securely hold the gageplate g inthe position to which it has been adjusted, the screw lc' carries an adjustable collar, D', that bears on the outer face of the cheek-piece J1, and on said screw is mounteda spring, E, that bears upon the nut or lug on the carriage i', in which the screw operates, and on the inner face of the said cheek-piece, thus holding the carriage fi more securely in the position to which it has been adjusted, as shown in Fig. 11.

In the modified arrangement and construction of mechanism shown in Figs. 4 and 6 the carriage t' is connected by means of a rod, Z2, to the end of a lever, g2, secured to a shaft, t2, to which is also secured a toothed sector, r2, that gears with a worm, s2, on ashaft, wi, supported in brackets z' on theunder side of the cheekpiece or rail l1, and which shaft carries the belt-pulleys C, C', and Cx.

'Ihe reversal ofthe traversing motion is effected by means of an angle arm, '1 2, secured to the carriage t' and projecting intov the path of two tappets, oZ o, secured to a slide-rod, n2,

said tappets being adjustable on the rod toA regulate the amplitude ofthe traversing motion of the carriage.

G2 is a lever pivoted at a3 to the rail h, and carrying at one end an adjustable weight, G. The. other end of the lever is slotted, as at y, and said slot engages one of a series of pins, n, on the rod a2 as soon as the arm y engages one of the tappets o2 o3. The rod n is carried along, thus moving the lever on its fulcrum, until the position thereof is reversed as the lever moves from a vertical to one or the 'other side on its fulcrum. The rod n2 is carried along very rapidly under the impulse of the weight G', thus shifting the belt-forks, which are secured to rod n2 from one of the fast pulleys C or Cx to the loose pulley C', carrying the belts R and R along, and thus reversing the motion of the carriage i.

In the modifications shown in Figs. 5 and7 ICO the connecting-rod Zl is, as also shown in Fig. 4, pivoted at one end toa bracket, m, depending from the under side of carriage z', and at the other end to a disk,p. The connection between the rod l and the disk is such that the amplitude of the throw of said rod may be varied within certain limits, and to this end the disk p has a radial slot, in which is fitted a block, g3, that is adjustable within said slot by means of a setscrew, a, and said block carries the wrist-pin, to which one end of rod Z is connected. The shaft wi here also carries a worm, s, that meshes with a wheel, r, on the shaft t2, on which is also secured the disk p.

The mechanism shown in Figs. l and 3, or that shown in Fig. 4, may here be employed for reversing the traversing motion of the carriage '17.

Instead of connecting the rod Zl with the diskp3 it may be directly connected to an adj ustable wrist-pin on the toothed wheel meshing with the worm s, or with one of a set of differential gearing, whereby a slow motion in one direction and a more rapid lnotion in a reverse direction maybe imparted to the carriage Having described my invention, what I claim is- I. In a woodworking machine, the combination, substantially as described, with the traversing carriage 'i and two rock-shafts connected to rock or oscillate together, one of said shafts carrying the dogs for securing the wood to be worked to the carriage, and the other shaft a rock-lever, of a fixed stop in the path of the rock-lever to rock the same when the carriage reaches a given pointin its traversing` movement in one direction and to rock the shafts and disengage the dogs from the wood on the carriage, for the purposes specified.

2. In a wood-working machine, the combination. substantially as described, with the t-raversing` carriage i, two roclcshafts connected to rock or oseillate together, dogs for securing the wood to beworked, mounted on one of said shafts, and a weighted rock-lever mounted onthe other shaft, of a stop adjustable in the path ofthe rock-lever for rocking the same when the carriage reaches a given point in its traversing movelnent, for the purposes specified.

3. In a wood-working machine, the combination, substantially as described, with the traversing carriage i, two superposed rockshafts connected to rock or oscillate together, one of said shafts being adjustable toward and from the other, dogs for securing the wood to the carriage, mounted on the upper shaft, and a rock-lever mounted on the lower shaft, of a fixed stop in the path of the rock-lever to rock the same and the shafts when the carriage reaches a given point in its traversing motion, substantially as and for the purposes specified.

4. In a wood-working machine, the combination, substantially as described, with the traversing carriage i, two superposed rockshafts connected to rock or oscillate together,

` dogs for securing the wood to the carriage,

mounted on the upper shaft, and a rock-lever mounted on the lower shaft, of a fixed stop in the path of the traversing carriage to rock the lever when said carriage reaches a given point in its traversing motion, and a gageplate ar ranged on one side of the carriage and adjustable in a direction at right angles to the traversing motion thereof, for the purposes specified.

5. In a wood-working machine, the combination, substantially as described, with the traversing carriage t', two superposed rockshafts connected to rock or oscillare together, dogs for securing the wood to the carriage, mounted on the upper rock-shaft, and a rock lever mounted on the lower rock-shaft, of a fixed stop in the path of the rock-lever to rock the same and the shafts when the carriage reaches a given point in its traversing motion, a gage-plate arranged on one side of the carriage and adjustable in an arc of a circle on a fixed pivot, and an adjustingscrew for adjusting the gageplate in a direction at right angles to the motion of said carriage, f'or the purpose specified.

6. The combination, with the carriage tand the verticallyslotted standards s, the shaft u, mounted in said standards, and the radial arms or levers t on shaft u, said levers having pins wt, of the vertically-slotted supports in, provided with pins s, adjustable on standards s by means of said pins s, projecting into the slots of the standards, and the pins w on the radial arms or levers t, projecting into the slots of the supports tu, and the shaft m, carrying dogs i/,mounted in supports w, said parts being constructed and operatingsubstantiall y as and for the purpose specified.

7. The combination, with the carriage Iand the verticallyadjustable mechanism for seein'- ing the wood to said carriage, consisting of the standards s, shaft a, mounted thereon, radial arms or levers i, the support w, and shaft mounted thereon and provided with a radial arm or levens, ofthe vertically-slotted connect'- ing rod or link w', the shaft b, connected with the arm z through said slotted link w, and the weighted lever c' on shaft b, said parts being constructed and operating substanti all y as and for the purposes specified.

S. The combination, with the traversing carriage t', of the adjustable carriage i', arranged at right angles to carriage z', the gageplate g', its support G pivoted at one end to said carriage i', andthe ad j listing-screws k 02, operating on carriage i and support G, substantially as deseribed,for the purposes specified.

9. In a wood-working machine, the combination,with the saw, the carriage z', having a projecting lug or arm, p, at 011e end, two superposed rock-shafts mounted on said carriage and connected to rock together, dogs on the upper shaft for securing the wood to the carriage, a rock-lever on the lower shaft of the inclined planef, adjustablelengthwise of and ICO l'fO

operating on the rock-lever to rock the shafts when the carriage reaches a given point in its traversing motion, and a belt-shifter operated by the carriage to reverse the traversing mo'- 5 tion thereof, substantially -as and for the purposes specified. w

10. ln a Wood-Working machine, the combi'- nation,vvith the revolving saw 'b and the traversingkcarriage z', provided with a lug or-arm,

ro p, at each end, of the belt-shifting devices, comprising the xed rod n, the shifter-bar m6, movable endwise thereon and having bracketarms m7 ma, the sleeves M7 M, loosely mounted in said bracket arms, the rod npassing loosely through said sleeves and connected rigidly with the rod n, and the spring q, mounted on said rod and bearing on the ends of the sleeves, said parts being constructed and operating substantially as described, for the purpose specified.

In testimony whereof I aixmy signature.

in presence of two Witnesses.

` CLAUS GLADE. Witnesses:

J W. BEorrroLD, A. G. BoRoHERs.

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