Abstract: A balance of precision is provided that enables reduction of the number of auxiliary free weights required to measure the weights of objects over a selected weight range. The balance utilizes on the scale arm of the balance auxiliary free weights in conjunction with a weight that slides along the scale arm. The weight that slides along the scale arm is shaped and dimensioned to fit around an auxiliary free weight positioned on the scale arm.

Abstract: An attachment for a vending machine. The vending machine includes a chute for inserting coins in the machine and includes a lever or button for actuating the machine to dispense an item after the coin has been inserted in the coin chute. The attachment includes a coin receptacle and an attachment member attached to the receptacle. The attachment member engages the coin chute and maintains the attachment in fixed position on the vending machine.

Abstract: An improved balance of precision. The fulcrum of the balance is integrally formed in a protective housing. The housing is utilized in conjunction with the beam of assembly of the balance to determine when the balance is in equipoise. When the fulcrum and beam assembly are packaged in the housing for transport, the housing stabilizes the beam assembly to minimize the likelihood of damage to the beam assembly during transport of the balance.