---
publication_id: "OT-2026-000001589"
title: "Roller-and-rail cargo handling system with pallet-moving trolley"
published_at: "2026-09-15T19:06:51.649586Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001589"
categories:
  - "material-handling/conveying-systems"
keywords:
  - "b64d9/00"
  - "b65g35/06"
  - "b65g35/06"
  - "b64d2009/006"
  - "b65g13/11"
  - "b65g13/11"
---

# Roller-and-rail cargo handling system with pallet-moving trolley

## Abstract

A roller-and-rail cargo handling system that includes tracked rollers and side rails for receiving cargo pallets. A trolley system is used to move the pallets along the tracked rollers, which includes a trolley movable along a trolley track by one or more cables. The trolley includes (1) a body sized and configured for sliding beneath the pallet located on the tracked rollers, and (2) a pawl in a cavity of the body which is mounted for rotation between closed and open positions. In the open position the pawl extends above an upper surface of the body to engage a cutout of a pallet and exert a moving force thereto, and in the closed position the pawl is sufficiently within the cavity to permit the trolley to slide beneath the pallet without engagement thereof.