US Patent: 590,385
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Vise
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Patentee:
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John A. Blake (exact or similar names) - Watertown, Jefferson County, NY |
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Patent Dates:
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Applied: |
Mar. 27, 1897 |
Granted: |
Sep. 21, 1897 |
Patent Pictures:
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Joel Havens "Vintage Machinery" entry for Prentiss Vise Co.
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Description: |
Abstract:
My invention has to do with vises for holding pipes or rods, and has been designed with to more particular reference to the needs of a vise for holding bicycle or other tubes or finished round bars. Under my invention the movable jaw of the vise-that is to say, that jaw which moves to and from the other-is actuated to move in a direction to clamp the work by means of what may conveniently be termed a "latch," adapted to engage the bar or stem which carries said jaw and capable both of an oscillatory or swinging movement by which it can be brought into and out of engagement with said stem and of a bodily movement lengthwise or in a direction to force the jaw to close tightly upon the work, in combination with means by which these several movements may be imparted to the latch. While I do not desire to be understood as limiting myself to the precise means hereinafter described for this purpose, yet I prefer to employ a pivoted lever-handle having an eccentric hub, upon which the latch is freely hung, the eccentricity of the hub determining the extent of longitudinal movement of the latch, while a pin or shoulder on the latch, against which the lever-handle brings up at a certain point in its movement, serves as a means by which the tilting or swinging of the latch is effected in a direction to disengage it from the stem, the latch being normally pressed by a spring in a direction to cause it to engage the stem.
Claim:
In a vise the combination with the movable jaw and the notched bar or stem carrying the same, of a lever-handle pivoted to the vise-body and provided with an eccentric hub, and a latch mounted freely upon said eccentric hub and adapted to engage and operate the notched stem. |
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