US Patent: 335,871
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| Lever Cotton Press
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Patentee:
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| William P. Abell (exact or similar names) - Hinckley, Leicester County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 11, 1885 |
| Granted: |
Feb. 09, 1886 |
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Joel Havens
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Description: |
| Abstract:
In pressing cotton and other materials into o bales it is well known that to work economically the pressure should in crease inversely with the size of the bale. This varying pressure has been most effectively realized by lever-presses involving the one-sided toggle-joint principle, having the varying pressure resulting from their contraction at the center, produced by either a fixed or oscillating cylinder and piston, which does not rise and fall bodily with the toggle-levers. This arrangement necessarily gives rise to great waste of power by the friction produced by the side thrust of the follower against the side nearest the cylinder, and also necessitating a heavy and strong box and column to withstand this side thrust.
Claim:
In a cotton-press, the combination of double toggle-levers with the cylinders and plungers, arranged to rise and fall, as described, whereby the direction of the applied force always coincides with a straight line passing through the centers of the cylinders and the intersection of the levers with one another at the sides, substantially as hereinbefore described. The rising and falling cylinders, braced together and having their pistons severally connected to a pair of toggle-levers. |
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