US24141A - Machine for - Google Patents

Description

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JNO. SMITH SHATTUCK, OF MALDEN, MASSACHUSETTS.

MACHINE FOR CUTTING SOLES.

Specification of Letters Patent No. 24,141, dated May 24, 1859-.

To all whom it may concern:

Be it known that I, JOHN SMITH SHAT- TUox, of Malden, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Machines for Cutting Soles; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters and figures marked thereon.

Figure I, isa perspective view of the machine. Fig. II is a side elevation. Fig. III is a plan of the yielding table and cutters.

The letters refer to the same parts in all of the figures.

The main features of my improvement herein described are the yielding gage,-the yielding table,-the double cutters placed on a segment having the heel and toe in opposite directions,-and the elastic arms and dog for turning the segment.

The frame of the machine is shown at A A the sides being connected by the cross ties B B. The rocker-bar c extends from side to side of the frame near to the bottom, and supports the end of the curved treadle D, the other end being in a suitable position to be operated by the foot. A short chain F, is fastened near the middle of the treadle D, its opposite end being attached to a collar and short arm E:-the collar is secured to the main shaft Gr by a set screw. Upon the opposite end of the same collar a fly wheel or heavy weight E is attached, so balanced and adjusted as to act as a counter-weight and give proper momentum to the cutter block M, N.

To each end of the main shaft Gr outside of the frame, the eccentrics H VI-Iv are secured and by means of the connecting rods I, give a vertical reciprocating motion to the head-block L M, the position of which is regulated by the nuts and screws K K. A cutting board N is fastened to the lower side of the head-block and affords a suitable surface to receive the edge of the cutters or knives T T. These knives are made of steel and have a beveled edge at the top, made to the required curvature of the sole, and have a projecting cutting edge v o at the heel and toe for the purpose of separating the leather from the strip from which the sole is cut, at every stroke of the cutter; the extreme length of the cutters from heel to toe including the projections o o being a little greater than the breadth of the strip of leather as prepared for cutting. This strip of leather is laid upon the horizontal table V, in which there is an aperture y of sufiicient size to allow the cutter to work through it. The table is supported upon spiral springs b working on uprlght guides,-on the side opposite the feed a spring gauge c, CZ, is attached as shown in FigII, the steel spring c being fastened by one end, to the lower side of the table V by means of the set-screw a; the opposite or free end is of about the length of the sole and is turned upward at right angles so as to project about half an inch above the level of the table. This spring-gage rises and falls with the table V, while its free end d can be depressed by the action of the headblock L, M, without moving the table, its upper edge being thus brought to the level of the table, so as not to interfere with the action of the cutters against the board N, of the head-block.

At about the middle of the frame A, and above the shafts Gr, are placed the centers R R supporting the segments Q Q which are connected by two plane faces or tables S S, extending across the machine and forming an angle of about one hundred and forty degrees. These two faces S S form the support or bearing of the two cutters T T which are screwed firmly to the plate.

The stops fw w are affixed to the frame for the purpose of stopping the segment Q when it moves back and forth from falling too far, their place upon each side being such as to hold the edge of the cutter that is uppermost, in a horizontal position parallel with the face of the cutting-block. The elastic steel arms O O are fastened at their upper ends to opposite sides of the headblock M, and rise and fall with it; a hook or catch is formed at their lower ends by turning them inward the hooks being so placed that they will take hold alternately of the dog P which is held by a pin at its center f, to the sides ofthe segment Q. The dog P, has a slight motion upon the pin f; when the arm O takes hold of one end of the dog the farther end is depressed. When the arm O takes hold the opposite end is lowered, the circle described by the ends being such as to form an escapement and prevent interference with the non-working arm. The strip of leather from which the soles are to be cut is laid upon the table one side being brought up to a guide, so that it mayY he moved forward to the cutters in a'direct line; the farther end of the strip is brought in contact with the vertical end d of the yielding gage c, d; then (by the action of the foot upon the treadle, the eccentric and connecting rods bring down the head-block which depresses the end Z of the gage and forces the leather 'in Contact with the cutters,

l the spring-table moving downward at the same time its upper 4surface falls below the level of the top of the cutters leaving them free to act upon the leather. One sole is cut at each stroke and as the pressure is removed from the treadle the counter-Weight falls; the cutting-block, table, and gage rise; the arm takes hold of the dog and turns the segment, which rests upon the stops W W and brings the other cutter into an upright position below the cutting-block, ready for the neXt stroke.Y

What I claim and desire to secure by Let l. The alternating or vibrating segment carrying the two cutters having the toe and heel inV opposite direction.V

2. I claim the yielding table which supports the leather as it is fed forward; and the yielding gage by which the leather is brought to the right position tobe operated upon by the cutters.

3. I also claim the projecting knife-edges vat the heel and toe of the cutter by which the scraps are detached from the strip of leather.

JOHN SMITH SHATTUCK. [La] In presence of J. M. BATCHELDER, SAML. BATGHELDER, r.

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