| 摘要 |
<p>The elevator can vertically adjust a horizontal platform to selected heights at which the platform serves for loading and discharging prod. to and from oven shelves. The elevator is of the type in which the lifting mechanism and platform are carried on and above a rectangular base frame, pref. mobile on ground wheels. The base frame now has a pair of vertical pillars rising from corners at one end of the rectangular frame. Each pillar serves as a guide for the vertical displacement of one of a pair of parallel, cantilever arms extending over the frame at right angles to the pillars. Each arm is fixed to an endless, drive transmission chain running on sprockets top and bottom of the pillars. This design is simpler, more robust and easier to service than previous elevators of this type. It can be readily adapted for work with a wide variety of bakery ovens.</p> |
