DE400C - Planer for chair wickerwork - Google Patents

Description

1877.

O. MARR in HAMBURG.
Planing machine for chair wickerwork.

Patented in the German Empire on August 25, 1877.

This machine serves to level the threads split from the raw tube, i.e. H. she. to plan the width and thickness and at the same time the resulting from the leaf roots To take shots.

It consists essentially of a cast-iron frame in which two pairs of rollers are mounted, which receive their rotating movement by means of gears from a main shaft O and the various knives and knife holders.

Of the two pairs of rollers, the front, smaller one pushes the thread through the knife, which planes it thick, while the larger, rear it by the knife, which equalize the edges, drives. Of the four rollers, the two lower ones are firmly mounted and the top two run in pierced levers, which are loaded at the end, so that it is the rollers are allowed to raise and lower as needed.

But before the thread to be planed reaches the first pair of rollers, it has a horizontal thread To pass a knife, on which he is pressed by a lever, which is also loaded by weight. This device is used for launching.

The whole process of hobein is now a very simple one. After the main shaft O, on which a flywheel, a pulley, or a crank for foot operation can be attached, has been brought into rotating motion, the lever above the shooting knife is raised a little and the thread is inserted between the two into the first pair of rollers so that the shiny side is down and the knives go against the gun. As long as the smooth thread is pressed onto the knife below when turning forward, it remains untouched; but as soon as there is an approach, it is removed.

The upper roller of the first pair of rollers into which the thread now arrives is corrugated and made of wrought iron, but the lower one made of glass-hard steel and with a flat but sharp-edged groove, which has a depth, exactly the same as that of the finished planed Thread and a somewhat greater width than that of the latter. Due to the load on the rollers If the inserted pipe is now pressed wide, at the point of the channel but into this, so that it fills them; the pressure is so strong that it is sufficient for this purpose without particularly squeezing the part lying in the groove, whereby the structure of the Rohrs would suffer. - The one, lying hard on the lower roller, as far forward as possible Messer now separates the part lying in the groove from the rest, and the former goes through a narrow groove in the knife stand under the knife itself through into the second pair of rollers, while the other through a small, roof-shaped sheet metal over the knife from the machine is discharged.

The rear rollers that now grasp the thread are made of unhardened steel and are accurate as thick as the width of the finished planed thread, so that the knives lay hard on it with the cutting edge a little behind the middle of the rollers. The burden is here not larger than is just necessary to push through.

Thus, once the thread is caught by the front rollers, it passes without it Any further help, all knives, and the worker in question has nothing more to do than afterwards to put in a new one and at times the ones that did not disappear by themselves To sweep down spindles.

If you want to plan other dimensions, you have to use the corresponding shafts on the relevant shafts Rollers are stuck, which, by the way, as can be easily seen from the drawing, can be done easily is. Incidentally, this is hardly necessary for larger farms, since you then have several Can set up machines and produce one, at most two numbers on each.

For this purpose ι sheet of drawings.