Abstract: Lifting apparatus for lifting, conveying and/or positioning blocks or slabs, such as blocks or slabs made of concrete, masonry, stone, brick, or similar materials, and methods of lifting, conveying and/or positioning such materials. The lifting apparatus may include two spaced block supporters that are positioned or positionable to respectively mechanically engage a block or slab to support the same mechanically. Upon biasing the two spaced block supporters, the block is engaged and its weight supported, and the block may be lifted, conveyed and/or positioned at a desired location. Unbiasing the block supporters releases the block. A plurality of lifting apparatuses may be used together, including in modular form.

Abstract: A window locking system which prevents unintended opening of a window. The window locking system includes a base element which is attachable to a window and which forms a slot. Disposed within the slot is a latching member pivotally connected to the base element. The latching member includes a handle element and an oppositely disposed latching finger extending from opposite faces of the base element. A locking key which is rotatable between a locking position and an unlocking position is connected to the base element. The locking key prevents the latching member from pivoting from a closed position to an open position when oriented in its locking position.