Machine element or mechanism – Mechanical movements – Rotary to alternating rotary
Patent
1975-06-05
1978-01-31
Scott, Samuel
Machine element or mechanism
Mechanical movements
Rotary to alternating rotary
139449, F16H 2140
Patent
active
040709183
ABSTRACT:
A shuttleless loom including a pair of lance bands operative to insert weft threads through a shed of warp threads is constructed with a driving crankshaft which operates to synchronously drive both the lance bands and the reciprocating sley of the loom. A sector gear is mounted upon the sley for reciprocal pivotal movement whereby the lance bands are driven through a gear train meshing with the sector gear. The sector gear is driven through a connecting rod mounted eccentrically upon a drive wheel which is driven by the crankshaft. Because of the eccentric mounting of the connecting rod upon the crankshaft, the reciprocating pivotal motion of the sector gear imparts increased acceleration to the lance bands midway through their travel and a decreased acceleration at the ends of the lance band stroke. Furthermore, inasmuch as the sector gear is pivotally mounted upon the sley, reciprocal movement of the sley will cause a certain degree of sector gear rotation thereby imparting some degree of movement to the lance bands.
REFERENCES:
patent: 3192958 (1965-07-01), Birmans et al.
patent: 3678968 (1972-07-01), Juillard
Ingeniera Aplicada, S.A. (INAPSA)
Ratliff, Jr. Wesley S.
Scott Samuel
LandOfFree
Gripper holder bands driving mechanism for shuttleless looms does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gripper holder bands driving mechanism for shuttleless looms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gripper holder bands driving mechanism for shuttleless looms will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2071692