Abstract: A safety bolt device comprising: a drop down bolt, the drop down bolt comprising: a cross-member; a first vertical pin attached to a first end of the cross-member; a second vertical pin attached to a second end of the cross-member; a door receiver configured to receive the first vertical pin, the door receiver comprising: a bolt; a jamb receiver configured to receive the second vertical pin, the jamb receiver comprising: a pin; where the door receiver is configured to attach to a door, and the jamb receiver is configured to attach to the door jamb of the door, and where the safety bolt device is configured to prevent the door from being opened when the drop down bolt has been dropped into the door receiver and the jamb receiver.

Abstract: A safety bolt device comprising: a drop down bolt, the drop down bolt comprising: a cross-member; a first vertical pin attached to a first end of the cross-member; a second vertical pin attached to a second end of the cross-member, the second vertical pin parallel to the first vertical pin, and a fixed distance from the first vertical pin; a door receiver configured to receive the first vertical pin, the door receiver comprising: a bolt; a bolt vertical pin hole located on the bolt, the bolt vertical pin hole being a through hole, and the bolt vertical pin hole oriented generally perpendicular to the length of the bolt, and the bolt vertical pin hole configured to accept the first vertical pin; a jamb receiver configured to receive the second vertical pin, the jamb receiver comprising: a pin; a pin vertical pin hole located on the pin, the pin vertical pin hole being a through hole, and the pin vertical pin hole oriented generally perpendicular to the length of the pin, and the pin vertical pin hole configure

Abstract: A protective, front apron with adjustable straps at the neck, waist, thigh and ankle, as well as under-foot straps. The apron covers and protects the chest, legs, and feet. The fabric is commercial grade canvas or vinyl and is reversible. The apron may also be disposable. The apron may have additional features such as a pocket, tool loops, and, a pencil holder. The apron may support logos or advertising.