Spencer Pulley Spencer Pulley Spencer Kyle Pulley (born April 3, 1993) is an American football center for the New York Giants of the National Football League (NFL). He played college football at Vanderbilt. He was signed by the San Diego Chargers as an undrafted free agent in 2016. Pulley attended Evangelical Christian School in Cordova, Tennessee. While there, he was a three-year starter at offensive tackle and defensive end on the football team as well as lettering three times in shot put and discus throw in track & field. As a defensive end he recorded 29 tackles and 11 quarterback sacks. As
Fly system used for spot rigging, where they are often equipped with swivel-pivots to divert lines across a large range of angles. Tension blocks are single-sheave blocks located at the lower end of the arbor guide track, beneath the arbor. The operating line is reeved through the tension block from the bottom of the arbor through the rope lock. Tension blocks typically ride vertically along the arbor guide system tracks, instead of being fixed, to allow for variation in the length of the operating line. Counterweights are heavy objects that are used to balance the lineset loads in a fly system. In