" MACHINE TYING OF LETTER-SIZE MAIL " 1950s U.S. POSTAL SERVICE TRAINING FILM GG45585

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Dating to the late 1940s or early 1950s, this U.S. Postal Service training film "Machine Tying of Letter-Size Mail" explains the proper use and operation of a two-wrap twine tying machine designed for post office needs. The machine could easily bundle mail and would automatically create knots to hold the twine together. The film explains how the machine can efficiently tie bundles of letters and circulars, reducing the effort and fatigue associated with hand tying. The narration emphasizes the importance of threading the machine correctly, checking the knots to ensure they are secure, and tying the bundles properly to prevent mail from becoming loose and causing delays. It provides detailed instructions and demonstrations for tying both normal-sized and thin bundles, highlighting the need for operator skill and knowledge to ensure the bundles are compact and firmly tied. Note: according to the B.H. Bunn Co. website, the world's first automatic package tying machine was invented by Benjamin H. Bunn in 1907.

0:28 - 0:47: Introduction to the two-wrap twine tying machine, designed for post office needs, which ties bundles of letters securely.

0:50 - 1:25: The machine saves effort and fatigue compared to hand tying, but incorrect use can lead to loose bundles and mail delays.

1:28 - 1:44: The film will demonstrate the correct operation of the twine tying machine.

1:46 - 1:58: Key points for using the machine: thread it correctly, check the knots, and tie correctly.

2:01 - 2:25: Detailed instructions on threading the machine properly, following the chart and using the specified twine.

2:30 - 3:08: Importance of checking knots to ensure bundles stay tied, and notifying a supervisor if the machine makes poor knots.

3:19 - 4:12: Instructions for tying a normal-sized bundle: tie the long way first, then the short way, ensuring a tight, compact bundle.

4:15 - 5:13: Slow-motion demonstration of tying a bundle both the long way and the short way to ensure it stays tied during transit.

5:16 - 5:31: Instructions for tying thin bundles (about 10 letters) by holding the bundle on edge and pressing the trip lever.

5:55 - 6:29: Slow-motion demonstration of tying thin bundles by machine.

6:33 - 6:39: Alternate method for tying thin bundles with or without facing slips.

6:42 - 7:19: Emphasis on the importance of operator skill and knowledge for efficient machine use, ensuring bundles are compact and firmly tied.

7:22 - 7:31: Correct procedure saves effort and ensures bundles arrive in good condition.

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This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit www.PeriscopeFilm.com/