DE31197C - Method and machine for making buttons - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 39: Horn, Ivory. and plastic masses.

Patented in the German Empire on October 29, 1884.

The present method for the production of buttons from mother-of-pearl, etc. is characterized by the fact that two smooth, cast-iron disks, the profiles of which together show the counter-shape of the button shape, counteract this machined raw material clamped in a clamping chuck pressed with even pressure the latter with the aid of sand or other similar material and water as desired Grind the shape, with both the discs and the piece to be machined rotating very quickly.

In the drawing, α is the clamping chuck of the machine which is arranged on an ordinary dock and which carries the raw material block b ^{1 used} to manufacture the button. The two smooth disks cc , which are profiled according to the shape of the button to be produced, act on the block b ^{1 in} such a way that, with constant rotation, they are gradually brought closer to the block and supplied to it with the aid of the tubes χ, Fig. 1 Work on sand and water. As soon as the button is completed, the disks c are removed from one another.

To regulate their position, the two disks cc are mounted in slides jj which can be adjusted on the frames kk by means of the screws ii. The frames form the upper ends of the levers dd which are rotatable about the pin ρ and which can be driven out of one another by a thumb disk.

The thumb disk f is connected to the lever g , which is loaded with a counterweight h and rests in a hook q attached to the frame ο as long as the machine is not in operation.

If a block to be machined has been clamped in the chuck α , the disks cc are brought closer to the raw material by releasing the lever g from the hook q . Under the action of the counterweight h , the lever g begins to sink and the thumb disk f to turn; the lower ends of the levers d are thereby removed from one another, but their upper ends and, as a result, also the disks cc, on the other hand, are brought closer to one another and to the block b ^1.

When the button is ready, lift the lever g and place it back on the hook q; the levers d then, because the thumb f no longer acts on them, return to their previous position under the influence of the spring r.

The rotating movement is transmitted to the pulleys c by the rollers mm ¹ from the drive roller η through a belt, to which a tension roller m " , which is mounted in a lever s influenced by the counterweight t , always provides the necessary tension during the forward or declining movement of the discs c .

The lever u rotatably mounted at y is connected to a fork movable around the pin ν in order to more or less approach the clamping ring v ^{1 of} the chuck α to the conical end of the latter, ie to be able to compress the chuck to a greater or lesser extent.

Claims (2)

Patent claims:
The process for the production of button mushrooms or similarly shaped buttons, consisting in that two rotating, suitably profiled discs are pressed against the raw material to be processed, also rotating, with even pressure from both sides, around the latter with the addition of sand or a similar body and grind water to the desired shape. 2. A machine for the production of mushroom buttons, consisting of the two smooth disks cc, profiled according to the shape of the button, the levers dd rotatable about ρ , the upper ends k of which carry the adjustable bearings j of the disks c , the thumb disk f with lever g and counterweight h and the hook q attached to the frame ο, in which machine sand or another abrasive and water is supplied to the disks c. For this purpose ι sheet of drawings.