What is the purpose of the canning ring? The purpose of the ring is not to create any kind of seal in any way: the ring only has a very temporary function, and that is to hold the actual flat lid in place during processing. Without a canning ring, the lid would almost certainly just flap about until it got carried off in the canner. How tightly should the canning ring be screwed on? Linda Ziedrich says, Screw on the metal ring firmly, but not as tight as possible.
NICE AND EASY: When is “finger tight” tight enough?
What the heck does fingertip tight actually mean? - Healthy Canning
Mahmood, M. A common complaint of patients who are referred to a hand specialist is loss of mobility and motion of the fingers. Most often these complaints are gradual in onset, rather than starting abruptly. The stiffness and loss of mobility may or may not be associated with pain. Usually, patients complain of the inability to do activities they enjoy because of loss of gripping ability or fine dexterity. Fortunately, there are treatments available for these conditions.
Books relating to finger tight and brief extracts from same to provide context of its use in English literature. Tighten nut finger-tight. Install T-bar guide 66 on forward housing and secure with four bolts 59 and four washers Tighten bolts finger-tight. Place stripper sprocket assembly 64 in forward housing and secure with nut
J Orthop Trauma. Measuring Torque and Reproducibility in a Simulated Model. This study seeks to quantify and describe two-finger tightness and to assess the variability of its application by residents in training. METHODS: Cortical bone was simulated using a polyurethane foam block pcf density that was prepared with predrilled holes for tightening 3.