The Weinstein & Holtzman School / Glossary

G L O S S A R Y O F T E R M S

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Sash Balance

A spring device used to counterbalance the weight of a window sash or other vertical sliding part.

Sash Center

A pivoted support for transom or sash and comprised of two parts, one of which contains a pivot, the other a socket for the pivot.

Sash Chain

A metal chain adapted for use with sliding sash, attached to the sash and to the counterbalancing sash weight.

Sash Cord

Cord or rope used similarly to sash chain and in place of chain.

Sash Cord Iron

A small metal holder inserted in the edge of the sash, to which sash cord or sash chain is attached.

Sash Fast

A fastener attached to the meeting rail of double-hung windows.

Sash Lock

A sash fast with a locking device controlled by a key

Sash Pole

A wood or metal pole to which a sash pole hook is attached.

Sash Pole Hook

A metal hook attached to a wooden or metal pole used to lower or raise a transom or sash beyond hand reach.

Sash Pulley

A pulley mortised into the frame of a double-hung sash frame over which the sash cord or sash chain passes.

Sash Socket

A metal plate containing a hole or cup to receive a sash pole hook.

Sash Weight

A weight used to balance sliding sash, usually of cast iron or, if conditions require, of lead.

Screen Door Latch

A small locking or latching device used on screen doors and operated by a knob or a lever handle.

Screwless Knob

A knob attached to a spindle by means of a special wrench as distinguished from the more commonly used side knob screw

Screwless Rose

A rose with concealed method of attachment.

Secret Gate Latch

A surface-applied latch operated by a concealed button or other device; usually used on office gates.

Shank(of a knob)

The projecting stem of a knob into which the spindle is fastened.

Shelf Pin

A pin for supporting a shelf; also called a shelf support or shelf rest.

Shutter Operator (also called a Shutter Worker)

A device incorporating a hinge and a method of opening or closing a shutter by means of a crank or turn from inside without opening window.

Side Knob Screw

A set screw used to fasten a knob to a spindle.

Signal Sash Fastener

A sash-fastening device to lock double-hung windows that are beyond reach from the floor. It has a ring for a sash pole hook. When locked, the ring lever is down; when the ring lever is up, it signals by its upright position that the window is unlocked.

Spindle (of a knob)

The bar or tube connected with the knob or lever handle that passes through the hub of the lock or otherwise engages the mechanism to transmit the knob action to the bolt(s).

Split Astragal

An astragal that is split through the middle, allowing each door leaf to operate independently

Spring Hinge

A hinge containing one or more springs to move the door into the desired position. It may be either single or double acting.

Stile (of a door)

A vertical member of the door structure; each door has two, a lock stile and a hinge stile.

Stop (of a lock)

The button, or other small device, that serves to lock the latch bolt against the outside knob or thumb piece or unlock it if locked. Another type holds the bolt retracted.

Store Door Handle

A heavy grip or pull mounted on sectional or elongated plates and provided with a thumb piece to operate the latch trip of a store door lock.

Strap Hinge

A surface hinge of which one or both leaves are of considerable length.

Strike

A metal plate or box that is pierced or recessed to receive the bolt or latch when projected. Sometimes called Keeper.

Surface Hinge

One having both leaves surface applied.

Swinging Latch Bolt

A bolt that is hinged to a lock front and is retracted with a swinging rather than a sliding action. Sometimes called Hinged Latch Bolt.

Swivel Spindle

A spindle having a joint midway in its length to permit the knob at one end to be made rigid by the stop works while the other end is free to operate.