To the front entrance door slammed I equipped them with shock Bicycle pump. Now they close almost silently. The pump is mounted pivotally in brackets. mounted on the door and the doorframe. One swivel axis passes through the M6 screws, screwed into the outlet hole for the pump hose, the second through a steel rod with a diameter of 10 mm, inserted epoxy into the hole in the stock pump (handle removed it). The door closes smoothly because the air from the pump is discharged slowly through the cuff of the stock. Adjustment is made by changing the attachment bracket on the door. A. KUZNETSOV, Saint-Petersburg
Recommend to read
PROPELLER -THE PROPELLER UNIVERSAL
The driving force of the engine during the flight of model airplanes, aerovision or aeromobile is the thrust of the propeller. The quality of the workmanship and clarity of the selection...
DOUBLE PENCIL
If a wooden bar and drill two holes the diameter of pencils or flomasterom — get a new handy tool for drawing or sketching: one motion will be two parallel lines. Instead of a single bar...
