93-09.13
Object Name
Plane, Sash
Materials
Wood --Metal
Catalogue Number
93-09.13
Dimensions

L: 24.2cm W: 2.8cm H: 12.7cm
a- L: 24.2cm W: 2.8cm H: 8.1cm
b- L: 15.9cm W: 2.0cm H: 0.9cm
c- L: 18.6cm W: 1.5cm H: 0.2cm

Description

A wooden sash coping plane consisting of 3 parts.
a- The body is rectangular and made of a brown hardwood. A cheek protrudes from the bottom 13 of the front body and extends down past the sole. The sole is curved convexly with the apex pointing in toward the back fence. The back fence is removable, secured by three slotted screws. Stamps on the toe read: "(J) FORB(ES)?"; "I BLOWER". A stamp on the heel reads "I BLOWER".
b- The wedge is made of the same hardwood as the body. It tapers to a blunt point on one end and is rounded in an elliptical form on the other. The top edge is chamfered. A shallow cut-out below the head allows for easy handling.
c- The iron is a narrow strip of dark grey metal. It abruptly wides near the cutting edge. The cutting edge is longer than it is wide and is rounded convexly in an ovolo, or quarter-round profile.

History

Sash coping planes are a variety of molding plane used in windowmaking. Sash windowpanes are framed by decorative wood slats. This model is used to shape corner joins and creates a tight finish. The term 'ovolo' refers to the quarter-round shape of the cutting iron.