US2769A - Improvement in the construction of toggle-joint presses for cotton, hay - Google Patents

Description

EEreE@ ArENr ROBERT HARDING, OF SOUTH BERWIOK, MAINE.

IMPROVEMENT IN THE CONSTRUCTION 0F TOGGLE-IOINT PRESSES FOR COTTON, II-IAY, do.

Specification forming part of Letters Patent No. 2,769, dated September 3, 1842.

T0 @ZZ whom it may concern,.-

Be it known that I, ROBERT I-IAEDING, of South Berwick, in the county of York and State of Maine, have invented a new and useful machine for compressing cotton on shipboard, called aneonipound double-elbow-lever press 5 and I ldo hereby declare that the following is a full, clear, and exact description of the construction and operation 'of the same, reference being had to the annexed drawings,

making a part of this specification, in which- Figure l is a perspective View of the whole press. Figs. 2 and 3 are the different parts of the machine, separated from the frame of thepress.

The frame of the press. A A, is made in a portable manner of timber sufficiently strong to sustain a pressure of two hundred tons, the top and bottom being securred together by rods and bars of iron and nuts B B. On the sills is laid a movable platform, C, with crosspieces and spaces between them according to the number of ropes on a bale of cotton, and to the bottom of the follower D is a corresponding platform.

The follower is made of timber, the center pieces being separated from each other sufficiently wide'to admit of the ends of the horizontal pitman G, which are secured to the vertical center piece, E, to descend to the platl form, which is secured to the bottoni ofthe follower.- 'Ihe center piece, E., is made of cast iron, with a space in the center to allow the screw to pass through, and sufficiently low to admit of its own rise and fall. A place is also cast in the center piece at L to allow the 11pper end of the vertical toggle-joints K K to be connected with it. The lower ends of the same toggle-joints are connected with stands J J, which are secured to the follower. These toggle-j oints are connected together with nu-ts or female screws M, through which and the center piece passes a double inverted screw, N,on one end of which is a windlass-wheel, O. One end of the horizontal pitman G being secured to the lower end of the center piece, the other ends act against the vertical toggle-joint H H at each end of the press, which are secured to the top frame of the press and the follower by stands I I. On each side of the center piece are guiding-planks F F, which are secured to the follower, and pass through the top frame of the press, an-

swering the double purpose of keeping the follower square and the center piece in a cen- `man'G G to operate with double power against the vertical toggle-joints H I-I at each end of the press, thus making a gain of threefold power without loss of time or speed. It is evident that the same power applied to a double inverted screw and toggle-j oint alone would produce twothirds less pressure after they open beyond an angle of forty-five degress, and in both cases the follower moves the same space in about the same time, and yet by the arrangement of the screw and toggle-j oints acting directly against the follower, as well as against the other toggle-joints, no more power is lost below a right angle than what is lost in a screw and toggle-joint alone.

This press is made portable and for ships use, for the purpose oi'repressing cotton, and can also be used for other purposes for pressing where a great pressure is required. For most purposes the dimensions would be eight feet high, sixwide, and two deep, and it can be put up or taken down in an hour.

y I do not claim the application of the right and left handed screw to operate the two pairs of toggle-joints, as above described; nor do I claimzthe manner of operating two pairs of toggle-joints by a horizontal pitrnan connecting to a central movable piece 5 but What I do claim, and desire to secure by Letters Patent as my invention, is

Ihe manner of combining the toggle-joints moved by a right and left handed screw operating on the movable center piece, E, with the toggle-joints'moved by the horizontal pitman G, constructed and operating as above described.

In testimony whereof I, the said ROBERT HAEDINmvhereto subscribe :my namein the presence of the witnesses whose names are hereunto subscribed, on the 19th day of August, A. D. 1842.

' It. HARDING.

Witnesses:

.TOEN HUBBAED, SAMUEL HAEDrNe.

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