US82816A - peters - Google Patents

Description

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To ALL WHOM 1T MAY coNonn'n:

JAeoB FEK'LBnnoFsT. Louis., MISSOURI.

LettersPatent iNo. 82,816, dated October 6, A1868.

IMPROVEMENT IN'llllAGHI'llE-S1v MOltTISING, SLOTTING, AND DOVE-IAILI'NG'nV ttt-tlgetnle referrer tu in ttte'tttters mit acting mi tf tige zum. I j

Be it known that I, JAG FELBlER, of'St. Louis, in the county of )St.Louis, and State of Missouri, have made certain new and useful Improvements inYLMa'chines for Mortising, Slotting, and Dove-Tailing; and I 'do hereby declare that the following is a full andclear description thereof, A reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This machine is especially adapted tcoperating the clotting-tool covered by patent of William Zimmerman.

It consists of afra'me, Von which bearings are provided for two rotating arbors, one of which carries the tool in its end, and has a eompoiihd motion, which consists of a rotary motion about its axis, anda pendulous motion of its tool-end, thel latter mot-ionbeing imparted to it by means of an adjustable crank-wrist, attached to the other arbor, and a connecting-rod. The pendulous motion of the said Atool-arbor is for the purpose of giving the required length to the slot or mortise,`and the length of the stroke may be adjusted to a great nicety by means of the adjustable wrist, which imparts the motion to it. The` line of motion given to the pendulous end ofthe arbor may be straight, either in a horizontal, vertical, or diagonal plane, or it may be in a curved line, described from any desirable radius.

The article which is to be mortised, slotted, or dove-tailed,'is to be securedto .an adjustable table, which is capable .of an adjustable vertical or lateral motion. The' clauip, by means of which the stuff'isto be secured t'o the said table, is to-be capable of securing the stuif thereto, either in a horizontal plane, or at any angle of inclination desired. The screws, by means of which the stuff is .secured to the table, have 'a compound right- Y and-left motion, so as to operate expeditiously.

To enablethose skilled inthe art to make and use my improved machine, I will proceed to describe'its construction and operation. i

Figure 1 of the drawings is a front elevation of themachine.

Figure 2 is a planr Figure 3 is an end elevation. v l

Figure 4 'is a sectional elevation, showing the arrangement for changing the direction of-the slot or mortise.

Figure 5 is affront elevation of-'table and clamp used for diagonal mortising. l

jFigure 6 is an end elevation of the table and clamp-.shown in g. 5. Y

The frame A, which supports the operativeparts of the machine, furnishes bearings in itsl top facefor the two rotating arbors B and@ The arborB carries in its forward end the tool which c uts the mor-tise or slot.

Thistool is a peculiarv deviceofitself. -Itconsists of a grocved cylinder, constructed in such a manneras to present serrated cutting-edges, that-cut the chips up .into very fine particles, thatmay4 thenl be very easily removed from the 'mortise. The forward end of the tool is provided with cuttingedges,uthat enable-it toibore y directly intothe piece to be mortised, and-then the cutting-edges, which are providedbn the sides' of the tool,

enable it tocut its wayla-terally into the wood in whateven direction may be desirable. l

The arbor B shouldhave a very rapid motion about its axisand the tool-end of'it should also have a pendulous motion, either in a straight or curvedline, forv the purposeof giving theproper length, directiomand form to the mortise, as will be hereinafter. more fully explained. This pendull'ou 'mption is4 imparted to the.

arbor B by means of the-crankc and pitman C7 attached to the arbor C'.- Thecanli c maybe regulated, by

means of vthe screw c', to any required length o sliding box D, which carries the tool-end of the arbor B. The arborB has globe-beari'ngslinboth of its bearingboxes, D and D1, and Vthis enables it to Vrevolve freely on its axis at the same timefthatit has a p'endulousmotion. The box D is fitted to a sliding rail, d, whichforms the top edge of the segmental plate D?, and this plate is secured by means of the screw-bolts d to the top edge or end o'f the pendulum-guide D3. This 'pendulum-guide consists of a vertical arm anda T-shaped head. l l y A. slot, cl2, in the vertical arm,` extends nearly'its entire length, and permits 'the pivot-pin d3 to be moved up or down, as occasion may require, to lengthen or contract the strokeof the said pendulum-guide. A.l similar f stroke. The inner" end of ,thel pitman 'Clis coupled to the vertical slot is provided in the post a, which is a portion of the'frame A, for the operationiand vertical adjustment of the piu cl3. A collar in the centre of the said pin, and anut on the vba'clt end of it, afford the means of securing it rigidly to the post a at any required-elevation, while the nut on the front end servesto keep the pendu-lum in theproper place on the pin. There is a separate'ferrulefor each of the pieces a and D37 and the bolt or pin d passes through both of them, which thus furnish bushings for it.

When the tool b is desired to travel in a straight line, in a horizontal plane, so as to eut astraight mortisc, the pin di is to be passed through thelg a2 on top of lthe frame A, as shown in fig. 3, and'into a hole made in the pendulum-guide D3 for its reception. This secures the said pendulum-guide in a fixed position, and allows the box D to slideback and forth on the rail d, as it is operated by the crank c and pitmau C', thus enabling the tool b to travel in a reciprocating horizontal motion, and thereby cutting a straight horizontal mortise or slot.

Should it be desirable to cut a diagonal mortise, the segmental p late D2, which carries the rail d, may be adjusted to the pendulum, (nowbecomea fixed support,) at any required angle of inclination, by means of the adjusting-bolts dl, as is clearly indicated bydotted lines in fig. 4.

Should it be desirable to ganse the tool .Il to travel in a curved line, so as to out acurved mortise, as is frequently required in furniture or cabinet-work,'the Apin d* is to be removed-frgm the lug az, and inserted through holes prepared for it in the box D and plateDz, as is most clearly shown at d5 in iig. 3. The box D then becomes securelyxed to the pendulous guide :D2-D3, and as itis moved forward and backward by means of the crank c, as clearly described, the tool b will describe an arc of a circle, the radius of which will be equal to the distance between the axes'of the arbor B and pin d3, and this distance may be increased or diminished, as'eircumstances may require, by thevertical adjustment of the pin cl3, as has already been explained.

The 'stuif to bemortised is to'be placed on the.- table E, and there clamped fast by either the clamp F or G, aswill be presently explained'. The table E rests on the bed-plate El, and this bed-plate in turn is sustained by the face-plate EVwhich issecured'to the face ofthe machine-'frame A. The face-plate 'E2 is adjustable in a.

diagonal direction', by'means of the screw-bolts e, as shown by the dotted lines in fig, 1. The bed-plate Elie attached to the face-plate E by means of dove-tailed ways placed between them and the cogged sector el, which is provided with a leveror handle, e, and has its axle provided with bearings in the said bed-plate, gears vinto i a'cogged rack, (notshowlh) on theV face of the plate E2, and affords a means of raising or lowering the table E by simply raising or depressing the lever or handle e2. This arrangement may be useful when the width ofthe mortise being cut .is to bel increased beyond the size of the tool cutting it.

A set-screw, e3, attached to `the frame A, below the said bed-plate'El, will be convenient'for adjusting and i regulating the verticalposition of the table. The table E rests en the bed-plate El by means of the'intervening dove-tailed'waysle, and on theseways the said table has an adjustable lateral feed-motion. This motion is imparted to it by means of the cogg'ed sector e5, which is provided with a lever or handle,`e5. This sector, like the one marked e, has thebearings of its axle providedin the bed-plate El. It gears into a. cogged rack, the end of which is seen at el'in fig. 1, 'and which-is attached to the bottom ofthe tabl-e E. By raising or lowering the outer end of the lever es, the sector el Vactuates the table E, which is advanced toward or retreated from the tool b in this manner, so as to cause it to feed into'the stuff, in the desired manner, until the desireddepth of the mortises is reached. l

The clamp F, by means of which the stui'l is to be Ysecured to the table E, consists of tbe lmetallic framef d and the screw fl. This clamp is o nlyr to be used when the mortise or slot is to be ont into the stuifin a direc-y tion parallel with one of its faces. The screw is operated by a crank on its upper lend, and it has a washer, f, on its lower end, into which washer screw-threads are cut for the reception of the small threads cut on the lower end of the screws, which are made at au op'posite angle from those threads of the screw which find their bearings in the framef.- By means of Vthese compound threadsof the screw f1, a quick .motion isgiven theclamp, the same as the motion is given in most letter-presses.

When diagonal mortising is required, the clamp G is to be used, and the clampl` is then to be removed. The arrangement ofthe clamp G is best seen in figs. 5 and 6. It consists of a metallic stan'd,g, which isbolted to the table E, and a diagonally adjustable clamp-frame, gl, which is`to be adjusted at any required angle of inclination, and then fixed in position' bymeans of the screw-bolt g2, which passes through both it and the frame g. The clamp-screw g3 and its washer g are similar in every' respect to the above-described scrwf. i i i Having thus described my invention, what I claim, is i i i The combination of the arbor B, pivoted 'by ball-and-socket bearing at D1, and guided by ball-and-socket bearing in the sliding head D, with said head D, the segmental plate D, pendulum D3, its slotdz, and the pivot-pin d3, when operating substantially as and for the. purpose set forth.. j

` JACOB EELBER.

Witnesses M, RANDOLPH, i Gno. W. .'HERBERT.

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