US309316A - Schmidt geb - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1.

I'. A. SCHMIDT.

PROFILE CUTTING MACHINE.

No. 309.316. Patented Deo. I6, 1884.

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I 7i l (No Model.) 4 Sheets-Shet 2.

P. A. SCHMIDT.

PRUFILB CUTTING MACHINE.

No. 3095316. YPatented Deo. 16, 1884.

(No Model.) 4 Sheets- Sheet 3.

P. A. SCHMIDT.

PROFILI.' CUTTING MACHINE.

No. 309,816. Patented Dec. 16, 1884.

4 Sheets-Sheet 4.

(N0 Model.)

RA. SCHMIDT.

PROFILE CUTTING MACHINE.

Patented'Deo. 16, 1884.l

lll/lll PETERS, Pham-Linwgmnmr, wnshingwn. n c,

Unir-nn trarne Partnr einen.

FRIEDRICH `AUGUST SCHMIDT, OF LEIPSIC, GERMANY, ASSIGNCR TO ALBIN FISCHER AND JOHANNE CAROLINE SCHMIDT GEB. BECKER, OF' SAME PLACE.

PROFILE-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 309,316, dated December 16,1884.

Application filed July 30, iSS. Renewed May QG, 1884. (No model.) Patented in Germany January 31, 1882, No. 20,499.

To LZZ whom it may concern.-

Be it known that I, FRIEDRICH AUGUST SCHMIDT, a citizen of Germany, and a resident of the city of Leipsic, Germany, have in vented new and useful Improvements in Proiile-Cutting Machines(patented in Germany by Letters Patent dated January 81, 1882, No. 20,49%) of which the following is a speciiication.

Io In the accompanying drawings, Figure I represents one half a front view and one half a vertical section, at line B B, Fig. III, of the machine embodying my improvements. Fig. II shows a back view of the machine. Fig. III is a crosssection at line A A, Fig. I. Fig. IV is a cross-section of part of the machine with some of the parts removed. Fig. V is a horizontal section at line C C, Fig. IV.

Similar letters represent similar parts in all 2o the figures.` i

In the lower part of the frames D-D the driving-shaft W' is arranged, provided with suitable pulleys, Z, and carrying at its ends the ily-wheels K, which act at the same time as cranks having the pinsz attached, to which connecting-rods L are attached, the upper ends of which connect with the cross-bar E, guided in suitable guides, F, in the upper ends of the frames. This cross-bar Eis connected through 3o the rods G G with a cross-bar, H, attached to the box or fra-me M, into which the articles to be operated upon are fastened, thus giving to said box M the required up-aud-down motion.

To the inner sides of the frames D D plates or (as shown in the drawings) skeleton frames J are arranged, fixed and turning on bolts O, attached to the frames, and secured in any desired concentric position by suitable bolts 4o passing through the concentric slotsor openings o n c, provided in the main frames D D, Figs. III and IV. In these skeleton frames J J guide-frames N N are arranged, capable of moving horizontally in suitable grooves pro- .i 5 vided at the upper and lower part of the frames J J, and at the same time supported by the same. In these guiding-frames N N the box or frame M is guided in its upward and downward motion, communicated to the 5o same in the manner above described, either perpendicular when the skeleton frames J J are fixed iu a perpendicular position or at a slight inclination, corresponding with the position given to said frames J J when fixed and turned on the bolts O O, and secured in the concentric slots or openings t n o by suitable bolts. This arrangementofmovingthefrontof the box M, either perpendicularly or at a slight inclination, past the cutting-tool T, and consequently the articles fastened in said box M, enables a greater variety of work to be done than would be the case if this motion were always the same. The cutting-tool T, which may be of any desired construction, is, as represented in the drawings, xed on a shaft provided with a suitable pulley, td, and receives its motion from a cord or band passing over said pulley w and a corresponding pulley, w, attached to the main shaft W. The cutting-tool T, with its shaft and pulley, is attached to a suitable support, Q, moving on a crossframe, D", attached to the frames D D, capable of being moved inward and outward, as well as longitudinally, as may be required.

For the purpose of securing annmber of articles, as well as articles of various size and shape, into the frame M, the same is constructed with movable back' and top plates as well as side braces. So

To regulate the back plate, P, and also to brace the same, straps P are attached to the back of thc same, the ends u u of which form hubs provided with suitable screw-threads and work and screw shafts, S S, arranged at the top and bottom of the frame M. At the ends of these screw-shafts S S miter or bevel wheels :n are attached, meshing into corre sponding wheels attached to shafts q, which latter are connected together through the 1ni go ter-wheels as and receive motion from a hand-wheel, 7c, attached to one of the shafts q, (see II,) whereby a simultaneous motion is communicated to the screwshafts S S, and consequently to the straps P and back P of the frame M. The top plate, Y, is screwed down by means of suitable screws, t t, and in case the range of motion of this plate Y should not be sufficient, suitable blocks must be placed upon the top of the articles. The arroo ticles are secured sidewise in the frame M by bars R R, (see Fig. L) fixed in their places by suitable bolts.

The cutting operation upon the face of the article exposed to the action of the tool T is performed during the downward motion of the frame M, to which the articles are secured, as above described. To prevent, during the upward motion of said frame M, any damage to the cutting-tool, this frame M, and consequently the articles contained therein, are, during this upward movement of said i'ranic M, moved slightly backward to clear the cutA ting-tool, i'or which purpose the guide-frames N N, in which the frame M is guided, are arranged capable of moving horizontally in the frames J J, as above described. This horizontally-backward motion during the upward movement of the frame M is produced by the toggle-levers a b and rod d. (See Figs.V IV and V.) One end ol' the lever a turns on a fixed center or stud, f, attached to the main frame,'and the outer cnd ot' the lever b is attached to a center, c, fast on the guided rame N, and situated in the same plane with the bolt O, around which the frames J can be moved. To the connecting-joint g of these levers c and I) a rod, d, is attached, the lower end of which is provided with a suitable pin or roller, a, working in a suitable eccentric cam or groove, V, made in the ily-wheel K. (See Figs. I and IV.) This groove V is so shaped that during the downward movement of the frame M the fixed center, c, will bc retained exactly in a line with the bolt O, while during the upward movement of this frame M said groove V will be caused through the rod d to act upon the levers a Z1, so that their relative position and action will cause the frames N, and consequently the frame M, to move some distance backward, so as to clear the edge of the cutting-tool T.

\Vhat I claim as my invention, and desire' to secure by Letters Patent, is*

l. The combination of a wheel having a cam-groove, V, formed therein with a rod, d, which is vertically reciprocated by the rotation of said cam-grooved wheel, the togglelcvers b d, which are connected to said rod at their joint, the outer end or" one of said levers turning on a iixed stud, a box or frame, M, which contains the material to be operated on, and is connected to the free end of theI other toggle-lever, so that it may be moved backward thereb f and 0uide-frames which allow the backward movement of said frame N therein, substantially as and Afor the purrscrew-threaded hubs formed thereon, which receive the screw-threaded rods aforesaid, substantially as described.

FRIEDRICH AUGUST SCHMIDT.

Witnesses:

HERM. Lnrrnnr, OSWALD SCHMIDT.

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