Mechanism for adjustably positioning an embroidering frame

Details Mechanism for adjustably positioning an embroidering frame Mechanism for adjustably positioning an embroidering frame

1975-11-05

1976-11-16

Guest, Alfred R.

Sewing

Special machines

Embroidering

112 90, D05C 500

Patent

active

039916910

ABSTRACT:
Stepping mechanisms are used to move an embroidering frame in both the vertical and horizontal directions on a machine frame. Each stepping mechanism includes a hydraulic cylinder-piston rod assembly, a multi-way valve for directing the flow of hydraulic fluid to the assembly, and an electric stepping motor connected to the valve for regulating the flow to the assembly. To effect movement a signal is transmitted to the stepping motor which positions the valve to operate the hydraulic cylinder-piston rod assembly. The piston rod is in direct contact with the frame and its movement provides the desired movement of the embroidering frame. The piston rod is connected to the stepping motor for closing the valve when the desired position of the embroidering frame has been reached.

REFERENCES:
patent: 3183866 (1965-05-01), Walbert et al.
patent: 3468268 (1969-09-01), Rolauffs
patent: 3802360 (1974-04-01), Rolauffs et al.

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