SU20303A1 - Hand saw - Google Patents

Description

The proposed machine is designated for the transverse cutting of logs, timbers, etc. of timber by hand with a circular or sector saw.

In FIG. 1 shows in perspective the main type of the proposed - machine; FIG. 2-modifying it.

In both modifications, the machine consists of a fork 1-2 and a roller 11 moving in slots 10 jdTpocTKOB forks with tips 12 at the ends. , The ends of the 5 rollers are rigidly set. ... Round or sector-like saws are given, and the rollers 11 themselves are provided with handles 9 for driving the roller and - saw into the swing movement. ; In both modifications, the machine is screwed with the tips 12 into the part to be cut, but to hold the machine on it and to press the saw with the hand in the first case, the rod 3 (Fig. 1), and in the second, the screw 3 (Fig. 2). through the nut in the upper crossbar 2 forks and resting against the clip 4, which itself bears the roller 11.

The subject of the patent.

1. A manual saw, characterized by the use of a fork-like frame 1-2 (Fig. 1) with tips 12 on the free ends of the forks of a fork for mounting it on the sawn part and with a stem 3 to press on this part and hold it during operation. provided with guide grooves 10 for roller 11 with handle 9 for hand rocking movements and ends 5 for rigidly attaching one or several saw-round or sector-shaped to them.

2. Alteration of the machine described in Clause 1, characterized in that instead of rods n 3 (Fig. 1) a screw 3 (Fig. 2) with a nut in the crossbar 2 forks is used, connected loosely with a clamp-shaped frame 4, guided in grooves 10 and carrier roller 11 for mounting saws on it, which screw serves both to hold the fork in operation and to feed the saw by turning it.