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Double-pawl lever: fulcrum, two pawl pivots and an 80 mm handle

What is a double-pawl lever? · Modern device · basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance

Also called: double pawl lever, two pawl lever, palanca de dos trinquetes, Doppelklinkenhebel

Exact dimensions. True size, with no printing tolerance added.

length
97.0 mm
width
47.0 mm
height
5.0 mm

Notes

  • 5 mm plate pivoted on a Ø3 fulcrum pin with two Ø3 pawl pivots, one 23.32 mm out above the fulcrum and one 20.81 mm out below it, and an 80 mm handle: rocking it drives the ratchet with one pawl on the up stroke and the other on the down stroke.
  • Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

Double-pawl lever: fulcrum, two pawl pivots and an 80 mm handle size chart

dimensionvalue
fulcrumØ3
pawl pivots2 × Ø3
handle80 mm
thickness5 mm

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Henry T. Brown (1868, public domain)Five Hundred and Seven Mechanical Movements — scan on archive.orgwebPublisher's page; dimensions are facts
507movements.comBrown's movement No. 206: figure, his text and an animationwebPublisher's page; dimensions are facts
Xem StudiodrawingwebPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

double-pawl-leverlever in the wheel's frame (wheel axis at the origin), z 6..11STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=double-pawl-lever-fulcrum-handle-80

Double-pawl lever: fulcrum, two pawl pivots and an 80 mm handle, isometric render of a generated part
Render of double-pawl-lever from the free STEP; not to scale.

Fits with

Lever with two pawls driving a ratchet on both strokes, isometric render of a generated part
Lever with two pawls driving a ratchet on both strokes3 sizes★ 1 file

Questions

What is a double-pawl lever?

5 mm plate pivoted on a Ø3 fulcrum pin with two Ø3 pawl pivots, one 23.32 mm out above the fulcrum and one 20.81 mm out below it, and an 80 mm handle: rocking it drives the ratchet with one pawl on the up stroke and the other on the down stroke.