US Patent: 2,138,117
|
| Belt Tighener
|
|
Patentees:
|
| John J. O'Brien (exact or similar names) - South Bend, IN |
| Miles W. O'Brien, estate of (deceased) (exact or similar names) - South Bend, IN |
|
|
Patent Dates:
|
| Applied: |
Nov. 27, 1935 |
| Granted: |
Nov. 29, 1938 |
|
Patent Pictures:
[
1 | 2
]
|
|
|
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
South Bend Lathe History
"Vintage Machinery" entry for South Bend Lathe Works
|
|
Description: |
| Oltsch & Knoblock - patent attorneys
John J, O'Brien and The Northern Trust Co. executors of said Miles W. O'Brien (deceased).
This invention relates to belt tighteners, and more particularly to belt tighteners for lathes, which are preferably provided with a horizontal, drive belt actuated by an independently mounted countershaft assembly. The primary object of the invention is to provide a simple device of this character by which a shiftable countershaft mechanism may be locked in either belt tensioning or belt releasing position. A further object is to provide a device of this character constructed whereby the tension applied thereby to a drive belt may be accurately adjusted. A further object is to provide a device of this character in the nature of a toggle provided with a stop to limit pivoting thereof in one direction at substantially dead center. A further object is to provide a substantially upright pivoted countershaft mechanism shiftable by a foldable member either against the tension of a drive belt to substantially balanced position upon extension of said member, or oppositely to unbalanced position in the direction of a driven member whereby the weight of said countershaft mechanism assists in locking or maintaining said foldable member in folded position. A further object is to provide a device of this character comprising pivotally interconnected parts, the pivot end of one of said parts having a jaw in which the other part is received to limit the degree of relative pivoting of said parts. A further object is to provide a device for selectively applying or releasing tension of a drive belt comprised of pivotally interconnected parts, one of which affords a hand grip for operating the device and is provided with stop members which limit actuation thereof and assist in locking the device in either tension applying or tension releasing position. A further object is to provide a device 'of this character which is simple in construction, readily assembled and applied, and comparatively inexpensive.
|
|
){kind=link}
){kind=link}