Method and machine for sewing together mattress covers

Details Method and machine for sewing together mattress covers Method and machine for sewing together mattress covers

1975-12-23

1977-03-29

Larkin, G. V.

Sewing

Special machines

Mattress sewing

D05B 1100

Patent

active

040142744

ABSTRACT:
A mattress covering sewing machine includes a pair of upper and lower support plates for supportingly sandwiching therebetween a cushion wrapped with a pair of box-like outer covers. The support plates have outer peripheral portions extending in a manner to correspond to the shape of the outer peripheral portion of the cushion and coming into contact with the outer peripheral portion of the cushion through the box-like outer cover. The upper plate is mounted to be vertically movable so that the cushion is automatically and uniformly compressed in a direction of thickness of a cushion to permit the outer marginal edge portions of the adjacent box-like covers to be projected outward. The outer marginal edge portions of the adjacent box-like covers are sewn together to provide a mattress. The sewing device can be moved around the entire outer marginal edge portions of the adjacent box-like outer covers.

REFERENCES:
patent: 2646013 (1953-07-01), Haas
patent: 3641954 (1972-02-01), Redman et al.
patent: 3664280 (1972-05-01), Redman et al.

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