Counterweights for Doors
A red-chalk sketch of a suspended counterweight mechanism
The note titles the sheet with a heading of figures and the caption 'counterweights of doors.' In red chalk a weight is shown hung from a vertical cord, spread by a diamond-shaped arrangement of cords down to crossed struts below — a device for counterbalancing a swinging door or gate. Fainter red-chalk sketches drift across the margins around the main drawing.
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Counterweight mechanism for a door
The caption labels the sheet 'counterweights of doors.' The red-chalk drawing shows a weight suspended from a cord that is drawn out into a diamond of cords over a pair of crossed struts. The arrangement would take up and balance the pull of a hanging door.