Abstract: An apparatus for analyzing the performance of wheeled, land vehicle brake systems is described wherein means are provided for driving the vehicle wheels at a predetermined speed and the operator or computer controlled brake actuator selectively applies the brakes in a series of simple successive steps comprising the test sequence. The pedal force, or other actuating force, the brake effort exerted by each wheel, and the imbalance between the braking effort of opposite wheels is measured and recorded on a strip chart or fed to a computer, to determine if the measured values fall outside of a predetermined range of values representing acceptable deviations from standard values. Any deviation of the brake effort from the acceptable values, or excessive imbalance between opposite wheels at any point in the test sequence, may be used as a basis for diagnosing and identifying a specific brake malfunction. The system can be enlarged to simultaneously test the brakes on all wheels of a land vehicle.

Abstract: A vehicle cab includes a window designed to be removed from its framework so as to permit the egress of an operator in the event that the vehicle is involved in an accident and other cab exits are blocked. The inside of the window is provided with a latch comprising a bar mounted in the cab for movement between a stored position adjacent the window and out of engagement with a latch pin fixed to framework within the cab and a latched position wherein a notch located in the bar receives the pin, the latching bar then extending to a position requiring the back of the operator's seat to be pivoted forwardly to remind the operator to unlatch the window once he enters the cab to operate the vehicle.

Abstract: A vehicle cab is provided with a structure which includes a pivotal rod that serves as a grab handle for aiding an operator in mounting the vehicle and cooperates with a guide bracket fixed to the cab door so as to resist movement of the door from an open position toward a closed position.

Abstract: An apparatus for analyzing the performance of wheeled, land vehicle brake systems is described wherein means are provided for driving the vehicle wheels at a predetermined speed and the operator or computer controlled brake actuator selectively applies the brakes in a series of simple successive steps comprising the test sequence. The pedal force, or other actuating force, the brake effort exerted by each wheel, and the imbalance between the braking effort of opposite wheels is measured and recorded on a strip chart or fed to a computer, to determine if the measured values fall outside of a predetermined range of values representing acceptable deviations from standard values. Any deviation of the brake effort from the acceptable values, or excessive imbalance between opposite wheels at any point in the test sequence, may be used as a basis for diagnosing and identifying a specific brake malfunction. The system can be enlarged to simultaneously test the brakes on all wheels of a land vehicle.