Thursday, June 21, 2018

Line Mar Match Box Construction 092 - Trip Hammer

I found a Line Mar Match Box Construction Set from the 1930s, complete and with instructions. The box claimed the set made 100 different toys. I decided to test that claim -- one toy at a time. You can read all the posts for the Line Mar construction project at 100 Toys.

092. Trip Hammer

What you see below is only an approximation of the illustrated trip hammer. As with many of the more complex constructions, there aren't enough pieces.

Plus, the illustration wasn't all that clear -- certainly not enough for me to build this with any confidence.

Here's what I think was the intent. When the crank is turned, it rotates the 3-hole girder (1). The shaft attached to it would rotate in a circle, pulling the 5-hole girder up and down.

That girder is attached to a 3-hole girder (2). The motion causes the 3-hole girder to move out and down. This girder is attached to the box that represents the hammerhead.

The other 3-hole girder (3) pivots on the other girder (4), attached to the inside of the frame. Thus, the hammer extends out and down to the surface.

The critical part of the machine, (2) isn't shown. I'm not quite sure how that 3-hole girder attaches to the frame, the 5-hole girder, and the hammer.

In a way, it doesn't matter. This toy requires three 3-hole girders. Only two come with the set. Plus, the dowel and collar construction is too flimsy to actually turn anything.

Since this was a non-working model, I just fudged the connections to the 5-hole girder at (2). So below is about as close as I could get with the material at hand.

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