World Library  
Flag as Inappropriate
Email this Article

Northrop Loom

Article Id: WHEBN0021258110
Reproduction Date:

Title: Northrop Loom  
Author: World Heritage Encyclopedia
Language: English
Subject: Textile manufacturing, Kissing the shuttle, Lancashire Loom, Weaving, More looms
Publisher: World Heritage Encyclopedia

Northrop Loom

A Draper loom in textile museum, Lowell, Massachusetts
A Draper loom showing a Northrop filling-changing battery (the cylinder of pirns) in Bamberg, South Carolina

The Northrop Loom was a fully automatic Hopedale, Massachusetts beginning in 1895. It was named after James Henry Northrop who invented the shuttle-charging mechanism.

The Loom

George Draper and Sons. There he invented a spooler guide. He left and tried to be a chicken farmer, but was unsuccessful. It was at that time that he invented a shuttle-charger. Otis Draper saw a model of the device on March 5, 1889. Draper was also developing the Rhoades shuttle-charger. Northrop was given a loom to test his idea.

By May 20 he concluded that his first idea was not practical, and thought of another idea, On July 5, the completed loom was running, and as it seemed to have more advantages than the Rhoades loom. The Northrop device was given a mill trial in October 1889 at the Seaconnett Mills in Fall River, Massachusetts. More looms were constructed and tested at Seaconnett later in 1889 and during 1890.[1]

Northrop Battery

Meanwhile Northrop invented a self-threading shuttle and shuttle spring jaws to hold a bobbin by means of rings on the butt. This paved the way to his filling-changing battery of 1891, the basic feature of the Northrop loom. Northrop was responsible for several hundred weaving related patents. Other members of the Draper organization had developed a workable warp stop motion which was also included. The first Northrop looms were marketed in 1894. Northrop retired to California two years later when he was 42.


The principal advantage of the Northrop loom was that it was fully automatic; when a warp thread broke, the loom stopped until it was fixed. When the shuttle ran out of thread, Northrop's mechanism ejected the depleted pirn and loaded a new full one without stopping. A loom operative could work 16 or more looms whereas previously they could only operate eight. Thus, the labour cost was halved. Mill owners had to decide whether the labour saving was worth the capital investment in a new loom. By 1900, Draper had sold over 60,000 Northrop looms and were shipping 1,500 a month, were employing 2,500 men and enlarging their Hopedale works to increase that output. In all 700,000 looms were sold. [2]

By 1914, Northrop looms made up 40% of American looms. However, in the United Kingdom labour costs were not as significant and Northrop had only 2% of the British market. Northrops were especially suitable for coarse cottons, but it was said not particular suitable for fines, thus the financial advantage in their introduction into Lancashire was not as great as it had been in the United States. Henry Philip Greg imported some of the first Northrops into Britain in 1902, for his Albert Mill in Reddish, and encouraged his brother Robert Alexander Greg to introduce Northrops into Quarry Bank Mill in 1909. Greg bought 94 looms and output increased from 2.31 lbs/man-hr in 1900, to 2.94 lbs/man-hr in 1914. Labour costs decreased from 0.9d per pound to 0.3d per lb.[3]

Draper's strategy was to standardise on a couple of models which they mass-produced. The lighter E-model of 1909 was joined in the 1930 by the heavier X-model. Continuous fibre machines, say for rayon, which was more break-prone, needed a specialist loom. This was provided by the purchase of the Stafford Loom Co. in 1932, and using their patents a third loom the XD, was added to the range. Because of their mass production techniques they were reluctant and slow to retool for new technologies such as shuttleless looms.[4]

British Northrop Loom Co. Ltd

The British Northrop Loom Co. Ltd. was established in Blackburn in 1902 to build textile looms designed by Drapers in Hopedale. New Northrop factories were built in Blackburn before and after World War I. By the 1950s British Northrop employed over 3,000 operatives, producing an average of 10,000 looms a year. These were exported across the globe and had a huge impact on developing third world economies. The worldwide success of the Northrop Automatic Loom contributed directly to the rapid post-war decline of Lancashire's own cotton industry. [5]

British Northrop Models

F Model 30" to 120" for weaving Cotton sheeting, woollens, worsteds, Blankets
D Model 30" to 70" for Dress Goods, Dobby Medium Weight Cloths, Rain Coatings
T Model 28" to 60" the standard loom for Calico, Twills, Coloured Shirtings, Brocades



  1. ^ Transactions of the National Association of Cotton Manufacturers, Issue 59, 1895
  2. ^ "Cotton Chats". 1940. Archived from the original on 2009-08-07. Retrieved 2009-01-25. 
  3. ^ Rose 1986, pp. 96, 97
  4. ^ Mass 1990
  5. ^ .Northrop 'Model T' Automatic Loom BBC History of the World 2010
  6. ^ Advertisement in Preliminary operation in weaving

External links

  • Selected Cotton Chats- Draper Corporation 1901- 1923
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.