Nova Patents
US1995338A

Door latching mechanism

Abstract

This record has no abstract on file.

US1995338A, drawing sheet 1
Sheet 1 of 8

Term

Term ended

Expired 17 April 1954, 72.4 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

10 claims: 10 independent, 0 dependent

  1. 1
    Having thus described my invention, what I claim is:1. A latch mechanism for a door comprising a slidable bolt having one end adapted in one posi25 tion to extend through the edge of said door and in another to be withdrawn into said door, resilient means urging said bolt to extended position, a pivoted detent carried by said bolt, a handle member pivoted to said door and provided 30 with a bolt operating projection adapted to move said bolt upon pivotal motion of the handle member beyond a certain point, and means causing said detent to engage said projection when said handle is swung a predetermined amount. 35
  2. 2
    A latch mechanism for a door comprising a slidable bolt having one end adapted in one position to extend through the edge of said door and in another to be withdrawn into said door, resilient means urging said bolt to extended position, a slot in said bolt, a pivoted detent carried by said bolt within said slot, a handle member pivoted to said door and provided with a bolt operating projection adapted to move said bolt upon Pivotal motion of the handle member beyond a 45 certain point, and means causing said detent to engage said projection when said handle is swung a predetermined amount.
  3. 3
    A latch mechanism for a door comprising a slidable bolt having one end adapted in one posi 60 tion to extend through the edge of said door and in another to be withdrawn into said door, resilient means urging said bolt to extended position, a pivoted detent carried by said bolt, a handle member pivoted to said door and normally 55 lying within said door and having its outer surface flush therewith, means carried by said handle adapted to be engaged by said detent upon the swinging of the handle a predetermined distance outwardly whereby said handle may be held 6U in such position for grasping, means carried by said handle adapted upon the swinging of the handle beyond the grasping position to actuate said bolt to withdraw the same.
  4. 4
    A latch mechanism for a door comprising, a 65 sliding bolt and a pivoted handle lying in one position within said door and with one surface flush with the surface of said door, means for moving said handle to grasping position, means comprising a detent pivotally carried by said bolt ‘° for holding said handle in such grasping position, and means actuated by motion of said handle beyond said grasping position for actuating said bolt.
  5. 5
    5· A latch mechanism for a door comprising, a 75 sliding bolt and a pivoted handle lying in one position within said door and with one surface flush with the surface of said door, means comprising an integral thumb-piece for moving said handle to grasping position, means comprising a detent pivotally carried by said bolt for holding 5 said handle in such grasping position, and means comprising an integral cam actuated by motion of said handle beyond said grasping position for actuating said bolt.
  6. 6
    A latch mechanism for a door comprising, 10 a sliding bolt and a pivoted handle lying in one position within said door and with one surface flush with the surface of said door, means for moving said handle to grasping position, means for holding said handle in such grasping posi- 15 tion, and means actuated by motion of said handle beyond said grasping position for actuating said bolt, said handle being T-shaped, and means operable by a single control for locking both ends of the cross bar to said door. 20
  7. 7
    A latch mechanism for a door comprising, a sliding bolt and a pivoted handle lying in one position within said door and with one surface flush with the surface of said door, means comprising an integral thumb-piece for moving said 25 handle to grasping position, means comprising a detent pivotally carried by said bolt for holding said handle in such grasping position, and means comprising an integral cam actuated by motion of said handle beyond said grasping posi- 30 tion for actuating said bolt, said handle being T-shaped, and means operable by a single control for locking both ends of the cross bar to said door.
  8. 8
    A latching mechanism for doors comprising a handle pivotally mounted on the door inter- 35 mediate its ends, a sliding bolt adapted to be engaged by said handle, said handle when in the closed position having the outer surface thereof disposed substantially flush with the outer surface of the door, means disposed adjacent one 40 end of said handle for moving the opposite end thereof to a position to be grasped by the hand, means for holding said handle in such grasping position and means actuated by the movement of the handle beyond the grasping position to ac- 45 tuate said bolt to open the door.
  9. 9
    A latching mechanism for doors comprising a handle pivotally mounted on the door intermediate its ends, a sliding bolt adapted to be engaged by said handle, said handle when in 50 the closed position having the outer surface thereof disposed substantially flush with the outer surface of the door, means disposed adjacent one end of said handle for moving the opposite end thereof to a position to be grasped by 55 the hand, said means including a spring pressed detent pivotally mounted within the door and a cam carried by and disposed adjacent one end of said handle for holding the handle in such grasping position and means actuated by the 80 movement Of the handle beyond such grasping position to actuate said bolt to open the door.
  10. 10
    A latching mechanism for doors comprising a handle pivotally mounted on the door intermediate its ends, a latching bolt adapted to 65 be engaged by said handle, said handle when in the closed position having the outer surface thereof disposed substantially flush with the outer surface of the door, means for moving one end of the handle to a position to be grasped 70 by the hand, means for holding said handle in such grasping position and means actuated by the movement of the handle beyond the grasping position to actuate said bolt to open the door. W. C. ANDREWS. 7·
Independent claims10