the Philadelphia Centennial Exhibition. 
23 
lecting of the sheaf at the Illustrations of McPlterson's Binder 
moment when the needle (continued). 
comes down, and the proper 
twisting and cutting off of 
the wire; hut, in order to 
remove any obscurity, I 
reproduce the designer's 
words : — " The cut grain is 
delivered from the elevator 
A (Fig. 14) into thegaveller 
concave CP. When the 
binder-bar B, to which the 
wire-carrier or needle is at- 
tached, is in its upward posi- 
tion, the wire is stretched 
from between the lower 
clamping jaws h and h l 
(Figs. 15 and 16) to the 
point of said needle or wire- 
carrier N. The gavcller- 
arms C are then revolved, 
taking in what grain may 
have been deposited in the 
concave, and forcing it 
against the wire. The gavel 
or bundle is thereby car- 
ried beyond the vertical 
line of travel of the wire- 
carrier N (reeling off the 
necessary amount of wire 
to form the band), and, as it 
descends, the wire is made 
to encircle the sheaf, and 
that end or portion of the 
wire is also delivered to 
the grasp of the head d and 
jaw b l (Fig. 16), by which 
they are firmly clamped, 
cut off, and twisted together. 
While this is being done, 
and before the bar B rises, 
the lower clamping jaw h 1 
(Figs. 15 and 16) opens, 
and discharges the end or 
cutting just formed, and 
closing immediately upon 
the end just presented to 
its grasp by the last descent 
of the needle N. The bar 
B and needle now rise again, 
and deliver the bundle just 
bound, and the operation is complete." 
Mc Cor mick's Automatic Binder combines some novel and ingenious features, 
which may be briefly described. It is quite impossible to attempt a mechanical 
account, which would necessitate a series of illustrations quite beyond my 
limits. The chief peculiarity of the invention consists in the mountings of the 
binding-apparatus upon a traversing carriage so that the binding-arm moves 
up to that part of the table which receives the grain from the elevating apron, 
Fig. 17. — Fhont Sectional Elevation of the 
Gavelled Binder-needle and Twister-wheel. 
