Abstract: A device for use in positioning and securing a door jamb in a level condition. The device includes a spacer plate assembly having outer end portions which extend beneath the inner portion of the sides of the jamb during the leveling process. A pair of bolt shaped members are threadedly received in the spacer plate assembly, one at each end thereof, to provide a means of raising and lowering the ends of the spacer plate assembly. A suitable level indicating unit such as a carpenter's level is also mounted on the spacer plate. The device further includes a pair of anchor base plates which are mounted in the floor, one at each end of the spacer plate, adjacent the lip extensions. The bolt members are rotated until the level indicating unit shows the spacer plate to be in a level condition, at which time each side of the door jamb is fixed to the respective anchor base plate by anchor screws or similar means.

Abstract: An adjustable device for anchoring door jambs of various sizes in a fast and efficient manner. The device includes one or more frame members which receive a pair of overlapping L-shaped planar members in sliding engagement with each other. Each frame member is generally of an L-shaped configuration having vertical and horizontal planar portions, and with a lip formed along the outer edge of the horizontal portion to provide a slot for use in retaining the overlapping members. The overlapping members each have vertical and horizontal planar portions, with the horizontal portions being of sufficient length to allow the length of the overall anchor to be varied by slidably positioning the overlapping members relative to each other. The position of each frame member relative to the overlapping members can also be adjusted to correspond with the shape and construction of a particular door jamb.

Abstract: A device for use in positioning and securing a door jamb in a level condition. The device includes a spacer plate assembly having a planar member with a lip extension at each end which extends beneath the inner portion of the sides of the jamb during the leveling process. A pair of bolt shaped members are threadedly received in the planar member, one at each end thereof, to provide a means of raising and lowering the ends of the spacer plate assembly. A suitable level indicating unit such as a carpenter's level is also mounted on the spacer plate. The device further includes a pair of anchor base plates which are mounted in the floor, one at each end of the spacer plate, adjacent the lip extensions. The bolt members are rotated until the level indicating unit shows the spacer plate to be in a level condition, at which time each side of the door jamb is fixed to the respective anchor base plate by anchor screws or similar means.