The Sewing Machine: Its History, Construction, and ApplicationE. & F.N. Spon, 1864 - 112 pages |
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Page 20
... descent . Another has introduced an eye- pointed needle on the one side , and a hook - pointed needle , by which the thread is caught and retained till the descent of the upper needle , on the lower side . Machines constructed on this ...
... descent . Another has introduced an eye- pointed needle on the one side , and a hook - pointed needle , by which the thread is caught and retained till the descent of the upper needle , on the lower side . Machines constructed on this ...
Page 21
... descent penetrates through into the loop E. To ensure this the hook , after reaching its extreme po- sition on the left , moves in a direction perpendicular to its former one as indicated by the arrow , Fig . 21 , A. The loop held by ...
... descent penetrates through into the loop E. To ensure this the hook , after reaching its extreme po- sition on the left , moves in a direction perpendicular to its former one as indicated by the arrow , Fig . 21 , A. The loop held by ...
Page 23
... descent passed through the old loop , has commenced to rise at the moment of this being released , but is still in a position to catch and retain it . Were the old loop to be released before the entrance of the catch into the new one ...
... descent passed through the old loop , has commenced to rise at the moment of this being released , but is still in a position to catch and retain it . Were the old loop to be released before the entrance of the catch into the new one ...
Page 25
... descent reaches the loop of the lower thread below the ma- terial ( E ) , but without in this case passing through the loop of the upper thread . It is on this account that the hook is made longer and thinner , so as to allow of its ...
... descent reaches the loop of the lower thread below the ma- terial ( E ) , but without in this case passing through the loop of the upper thread . It is on this account that the hook is made longer and thinner , so as to allow of its ...
Page 27
... descent of the needle , the eye has again reached the material . The loop of the upper thread is drawn somewhat on one side of the hook , so that the needle in its descent penetrates the loop , m n o p , Fig . 14 , F , of the lower ...
... descent of the needle , the eye has again reached the material . The loop of the upper thread is drawn somewhat on one side of the hook , so that the needle in its descent penetrates the loop , m n o p , Fig . 14 , F , of the lower ...
Autres éditions - Tout afficher
The Sewing Machine: Its History, Construction, and Application (1864) Rudolph Herzberg Aucun aperçu disponible - 2014 |
The Sewing MacHine: Its History, Construction, and Application (1864) Rudolph Herzberg Aucun aperçu disponible - 2008 |
The Sewing Machine: Its History, Construction, and Application, Tr. by U ... Rudolph Herzberg Aucun aperçu disponible - 2015 |
Expressions et termes fréquents
affixed allow angle arc of oscillation ARTHUR PHILLIPS ascent axis bobbin bracket catches the loop caught centre chain-stitch machine chord cloth commences connecting rod connecting-rod constructed crank curve cylinder deepest point descent descent passed described diameter direction disc distance double-thread chain-stitch driver eccentric groove edge employed Engineers F. N. SPON feed eccentric feed motion feeder flange formation formed friction fulcrum Grover and Baker hinder end hollow hook latter length looper point lower end lower mechanism lower side lower thread main shaft lies material motion is transmitted needle carrier needle hole needle lever needle-carrier needle-hole oscillation and motion parallel passing piece plane of oscillation Plate II Plate VII position quilting-stitch radius return motion rise roughened round set screw sewing plate sewing-plate sewn shown in Fig shuttle point single-thread chain-stitch spindle spiral spring spool steel stud surface tension apparatus thickness tion treadle universal joint upper thread Walter Hunt wheel Zerah Colburn