Cutting – By tool reciprocable along elongated edge – With work-support and means to vary relationship between...
Patent
1992-08-12
1993-07-20
Yost, Frank T.
Cutting
By tool reciprocable along elongated edge
With work-support and means to vary relationship between...
83786, 83662, B27B 1902
Patent
active
052283763
ABSTRACT:
A scroll saw includes a hollow elongated base having a vertical sleeve portion at the rear end portion of the base. A hollow shaft is slidably inserted in the sleeve portion. An L-shaped arm member is fixed to the hollow shaft and has a suspending bracket which hangs over the base. A worktable is horizontally above and has a lengthwise extending elongated slot. A guide screw rod has a first end connected to a hand wheel, and a second end vertically passing through the L-shaped arm member and a horizontal plate fixed to the base. Therefore, the L-shaped arm member can be moved up and down by rotating the hand wheel. Parallel driven and driving levers are respectively pivoted to the suspending bracket and the base. An elongated linking member has a first end pivoted to the driven lever and a second end extending into the hollow shaft. A longitudinal hole is formed near the second end of the linking member and has transverse positioning holes connected to the longitudinal hole. A locking pin of the driving lever detachably engages one of the positioning holes. A saw blade is vertically connected to the free ends of the driven and driving levers and passes through the slot of the worktable. A driving device is provided for driving the driving lever to move up and down, to and fro.
REFERENCES:
patent: 1116640 (1914-11-01), Sporleder
patent: 4841823 (1989-06-01), Brundage
patent: 4949616 (1990-08-01), Chang
patent: 5016512 (1991-05-01), Huang
patent: 5065652 (1991-11-01), Legler et al.
Rada Rinaldi
Yost Frank T.
LandOfFree
Scroll saw does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scroll saw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scroll saw will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1753803