---
publication_id: "OT-2026-000002149"
title: "Trolley mid-brake"
published_at: "2026-09-15T19:11:06.587103Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000002149"
categories:
  - "lifting-positioning-manipulation/hoists-and-cranes"
keywords:
  - "b61b3/00"
  - "b66c9/18"
  - "b66c9/18"
  - "b61b3/00"
  - "b61b3/00"
  - "b61b3/00"
---

# Trolley mid-brake

## Abstract

Disclosed is trolley brake and an assembly including a trolley brake. In some embodiments, the assembly may include a channel member, and a trolley body having a first portion positioned within an interior of the channel member and a second portion extending from the channel member. The assembly may further include a locking device coupled to the trolley body, the locking device including a main body coupled to the second portion of the trolley body, a bar extending through the main body, wherein the bar is rotatable about a central axis, and a stopper coupled to a first end of the bar, wherein the stopper comprises a magnetic material. In a first position of the bar and the stopper, the stopper is in direct physical contact with the channel member, and in a second position of the bar and the stopper, a gap is present between the stopper and the channel member.