page_title: Chinese siege weapons
section_title: Mounted crossbow
hierarchical_section_title: Chinese siege weapons / Mounted crossbow
caption_attribution_description: English: Wujing Zongyao illustration
context_page_description: This is an overview of Chinese siege weapons.
context_section_description: Large crossbows called "bed crossbows" were mounted on rectangular frameworks, often wheeled. Bowstaves were also sometimes combined together to increase tension and initial velocity of the bolt.
caption: A double bed crossbow
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