{"nrhp_refnum":"80000541","name":"Crompton Loom Works","other_names":[],"category":"building","location":{"address":"132-142 Green St.","address_restricted":false,"city":"Worcester","county":"Worcester County","state":"MA","lat":42.25665416900006,"lon":-71.79756538699996,"geom_source":"nps_gis"},"listed_date":"1980-03-05","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture","Invention"],"significance_levels":["state","local"],"summary":{"what_it_is":"A brick industrial building at 132-142 Green Street in Worcester, Massachusetts, begun in 1860 as a factory for making power looms and enlarged in several later phases.","why_significant":"The nomination argues that it is among the oldest factory buildings in Worcester and is tied to one of the city's largest industries, loom manufacturing. It is associated with William and George Crompton, whose loom inventions, including the 1857 broad loom, transformed textile machinery. The form checks the themes of architecture, commerce and industry.","narrative":"Crompton Loom Works is a brick factory complex at 132-142 Green Street in Worcester, built in stages beginning in 1860. It was erected for the manufacture of power looms and shows Italianate styling with later alterations, including arched second-storey windows and brick quoining. The earliest section was two storeys with a gabled central pavilion. Between 1881 and 1886 a tower was created on the Green Street front and the building was extended north. A third storey was added after 1888, probably around 1900. Further sections date after 1911 and 1922. The works is tied to William Crompton, who patented a fancy-goods power loom in 1836, and his son George, who designed a broad loom in 1857 that quadrupled productivity and won a medal at the 1867 Paris Exposition. The firm later merged with its chief competitor to form Crompton and Knowles. Loom production at this site ended after 1915, and the building now serves industrial and warehouse uses.","period_of_significance":null,"architect_builder":null,"architectural_style":"Italianate with alterations","criteria":[],"status_note":"Present use is industrial/warehouse; the company ceased production there after 1915 and the building was used for general industry afterward.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:55.031066-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/35/7930/63793035/content/electronic-records/rg-079/NPS_MA/80000541.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80000541/9dbc36c79a-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80000541/9dbc36c79a-1600.webp","licence":"CC BY-SA 3.0","author":"Pvmoutside","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Crompton_Loom_Works2.jpg\" rel=\"noopener\">Pvmoutside</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Crompton_Loom_Works2.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63793035","wikipedia":"https://en.wikipedia.org/wiki/Crompton_Loom_Works","wikidata":"https://www.wikidata.org/wiki/Q5187643"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/worcester-county/crompton-loom-works-80000541/"}