ERNEST JOSEPH MERZ
Engineers in Chambersburg, PA
License number
Pennsylvania PE008765E
Category
Engineers
Type
Professional Engineer
Address
Address
Chambersburg, PA 17201
Professional information
Safeload Indicator For Aerial Lift Platform Apparatus
US Patent:
4359137, Nov 16, 1982
Filed:
May 30, 1980
Appl. No.:
6/154757
Inventors:
Ernest J. Merz - Chambersburg PA
Charles W. Walters - Waynesboro PA
Charles W. Walters - Waynesboro PA
Assignee:
JLG Industries Inc.
International Classification:
B66F 1104, G01D 1312
US Classification:
182 2
Abstract:
A workman's lift platform apparatus has a vertically swingable and extensible boom with a workman's platform at the outer end. A color coding indicating the amount of boom extension is provided on the fly section of the boom, visible to the workman in the platform, and an indicator plate having corresponding color coding is provided adjacent the controls on the platform. The indicator plate in the form of a drum is driven proportionately to the angular movement of the boom by a pair of sheathed, push-pull cables, or by a sheathed torsion cable. In other embodiments, the indicator plate is tilted in proportion to the angular movement of the boom by a sheathed push-pull cable or by a parallel bar linkage. A cursor is provided adjacent the indicator plate, and is part of a gravity-operated pendulum.
Controls For Aerial Lift Platform Apparatus
US Patent:
4331215, May 25, 1982
Filed:
Feb 12, 1980
Appl. No.:
6/120882
Inventors:
John L. Grove - Greencastle PA
Ernest J. Merz - Chambersburg PA
Charles W. Walters - Waynesboro PA
Ernest J. Merz - Chambersburg PA
Charles W. Walters - Waynesboro PA
Assignee:
JLG Industries, Inc. - McConnellsburg PA
International Classification:
B66F 1104, G05G 100
US Classification:
182 2
Abstract:
Controls for an aerial lift platform apparatus which has a steerable mobile chassis, a rotatable upper works, and an extensible boom pivoted on the upper works for luffing movement. The controls are grouped to provide a first group of control members in physical proximity to each other for controlling upper works movement and a second group of control members for controlling movement of the chassis. Each of these control members is mounted for movement substantially to simulate the movement which is controlled. A third group of control members is for controlling the engine, and are in physical proximity to each other. The control members are mounted on a control console having near-horizontal and near-vertical surfaces from which the control members extend, the vehicle control member for drive and steering extending upwardly from the near-horizontal surface.