# Engineering and Technology History Wiki — EIMCO Rocker Shovel Loader

**Type:** source
**Status:** Useful
**Confidence:** High
**Source Type:** Reference / Encyclopedia
**URL:** https://ethw.org/ASME-Landmark%3AEIMCO_Rocker_Shovel_Loader%2C_Model_12B
**Publisher:** Engineering and Technology History Wiki (IEEE and partner societies)
**Accessed:** 2026-06-25
**Updated:** 2026-06-25

## Summary

ETHW entry on the EIMCO Rocker Shovel Loader Model 12B as an ASME landmark, covering its mechanical design, Utah origins, and international manufacturing spread.

## Useful Claims

- Documents the model's origin from Utah mining practice at the North Lilly Mine in Eureka
- Credits Edwin Burt Royle and John Spence Finlay as early developers
- Notes EIMCO's Salt Lake City manufacturing and international licensing
- Confirms the ASME landmark designation and Park City location of the example unit

## Reliability Notes

ETHW is a professionally maintained engineering history reference. Content draws on ASME landmark documentation and is reliable for technical and historical claims.

## Related Pages

- [EIMCO Rocker Shovel Loader](eimco-rocker-shovel-loader.md)