US Patent 7.931

February 11, 1851

Grover & Baker

Fig. 34 - Grover and Baker’s patent model, 1851.
Fig. 34 - Grover and Baker’s patent model, 1851.

 

The machine (figs. 34 and 35) made a double chainstitch with two threads both carried on ordinary thread spools and it used a vertical eye-pointed needle for the top thread and a horizontal needle for the underthread. The cloth was placed on the horizontal platform or table, which had a hole for the entry of the vertical needle. When this needle passed through the cloth, it formed a loop on the underside. The horizontal needle passed through this loop forming another loop beyond, which was retained until the redescending vertical needle enchained it, and the process repeated. The slack in the needle thread was controlled by means of a spring guide. The cloth was fed by feeding rolls and a band.

Figure 35.—This Grover and Baker cabinet-style sewing machine of 1856 bears the serial number 5675 and the patent dates February 11, 1851, June 22, 1852, February 22, 1853, and May 27, 1856. (Smithsonian photo 45572-F.)
Figure 35.—This Grover and Baker cabinet-style sewing machine of 1856 bears the serial number 5675 and the patent dates February 11, 1851, June 22, 1852, February 22, 1853, and May 27, 1856. (Smithsonian photo 45572-F.)

 

Sources:

Grace Rogers Cooper

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