Paving crack sealer machine

摘要: Apparatus for delivering a fluid material to crack in surface when the ambient temperature drops level which would otherwise preclude satisfactory flow of utilizes heated delivery valve and heat sink maintain an elevated temperature. A source such as gas burner is direct exchange relationship with raise desired radiating from well maintains sufficiently high assure adequate material. depending follower structure has projection extending into mounted pivotal movement about both horizontal vertical axes. This allows follow irregular avoid being damaged by unyielding object crack. Yieldable biasing means normally holds perpendicular but will yield under force accommodate movement. Also, axes are disposed spaced thus precluding any form ''''universal'''' or planes other than two