Handcrafted Bows at

Gianna Violins

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Contents:

  Parts of the bow

See http://www.drbows.com/diagram.html for a nice illustration

A few terms prove useful in consistently writing and talking about bows:

Stick - the wood itself, used sometimes for the entire bow

Head - the far end of the bow

Frog - the moving ebony part

Head plate or facing - usually bone cover at the bottom of the head, generally
lined with ebony

Button or tip - the adjuster

Eye - decorative inlay usually of mother of pearl on the sides of the frog or end of tip
Mortise - holes carved in head and frog to hold hair; also hole allowing eyelet to
reach shaft

Plug - maple block wedged into mortise to hold hair in place

Slide - movable cover over mortise and hair in frog

Ferrule - D section metal band over end of frog

Wedge - thin wood piece spreading and holding hair across ferrule

Lining - metal on frog.  Half lined frogs have only the contact surface with the stick
faced with metal.  Fully lined frogs have metal continuing from the slide around the
back of the frog

Eyelet - screws into frog and holds the frog to the stick by engaging shaft in stick
mortise

Shaft - threaded steel rod extending from tip into body of stick and engaging eyelet
to hold and adjust frog

Wrap - silver or other wire, thread, leather, or imitation whalebone guarding the
stick from the fingers

Grip - the thicker leather swell the thumb rides against adjacent to the frog
Weight - in grams, of the entire bow generally

Balance point - measured several ways, in this shop by mm ahead of the
hair-edge of the frog

Stiffness - resistance to flexing, in this shop measured with a Stroup stiffness
gauge, in units of thousands of an inch
     
 
  Bow Information
Bow Observations
History of Brazilian Bowmaking
Pernambuco
Bow and Pernambuco Links
Bows at Gianna Violins
     
     
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