US Patent: 610,412
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| Straightway Valve
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Patentee:
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| James Powell (exact or similar names) - Cincinnati, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 25, 1897 |
| Granted: |
Sep. 06, 1898 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for William Powell Co.
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Description: |
| Abstract:
The object of this invention is to improve the construction of the peculiar form of straightway valve seen in Letters Patent No. 533,991, granted to James H. Layman February 12, 1895. In said patent two disk valves are shown having studs or pivots journaled in a longitudinally-slotted carrier traversing the free end of a vibrating lever, which lever terminates with an integral wedge that bears against the ends of said pivots and forces said valves outwardly in the act of opening and closing them; but experience has proven this construction to be deficient in strength on account of the cutting away of the metal near the free end of the lever to form the wedge. I accordingly make this portion of the vibrating lever to enclose the sliding carrier, so as to give greater strength to this part. Furthermore, the wedging device may be integral with the lever or be made separate and inserted within a longitudinal slot of said lever, which slot is traversed by a valve-carrier, and this mode of construction I much prefer. If the wedging or expanding device is made integral with the lever in my improved construction, the box-carrier in that case is preferably divided longitudinally through its center, each half, with its respective circular journal-bearing, being adapted to slide independently of the other half within the slotted sides of the vibrating lever.
Claim:
The combination, in a straightway valve; of a shell having a pair of channels, a chamber provided with a guide and a valve-seat, a longitudinally-slotted lever whose free end vibrates within said chamber, a slotted slide traversing the lever-slot and having a circular side opening; a detachable expander fitted within said slide and lever, and a valve having a pivot inserted in said side opening, and adapted to be forced outwardly by said expander. |
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