US1469683A - Door attachement - Google Patents

Description

' Oct. 2 1923. A. OLSON ET AL DOOR ATTACHMENT Filed April. 17. 1922" Fi 1 l li J22 r/eie/Zvm,

A26! 011012 A Z/T d flaw-Z- and are pivotally connected b means of surround the pipe 12, said extension having a bifurcation 15'. of proper width to freely receive the intermediate keeper 7 as shown in Figure 1. The plate is heldpositioned on the pipe by the central notch 15" which lat ter loosely receives the regular screw 14' of the keeper.

The end of the shaft which extends beyond the edge of the door is of reduced diameter to form the shoulder 16 and the stub 16", said shoulder being flush with the edge of the door. Jour'naled at its lower extremity on said st'ub,'is the upwardly extending "collapsible knee 17, said knee comprising the lower shaft engaging member 17, pivoted on said s"tub,.and the upper member 17,,

pivoted onthe stub 18 whichlatter is parallel with the shaft 9. The stud is carried by a bracket 19 which is secured to the door as by means of'the screws 19' The mom-- hereof th knee converge toward the door the pivot pin 20, so that when the closure plate is moved upward the knee will bend and "cause the joint thereof to pass an appreciable distance inwarchy over the edge of the door (see Fig. 2) As the stub 16 and the's'tud 18 extend beyond the edge offthe door, the'joint offhe knee u on closing the door, will engage with theouter face of the ja'mb member 1 (Fi 6) wherebythe knee members will straighten out as hown in dotted lines in Fig'. 2, and thereby cause the closure plate to seat upon the floor as shown at the right in Figure 1. V

For the purpose of holding the plate normally in raised position, the 'extensile coil spring 21 is provided, the latter being connected under stress to opposite ends of the knee f In operation, a closing movement of the door will straighten the kne'e in opposition to the spring as stated in the foregoing, the

door-being held closed by the lock barl Upon releasing the lock bar the knee 17,un-

7 der the influence of the spring 21, will an- ,toinaticall'y assist in opening'the door in" its bendlng ut movement, e'aii'slng the gears to simultaneously roll upwardly on their "respective racks and thus ra se the closure being guided by the @We claim: Y.

keepers :7;

' 1. lnga structure of the class described, a

combination with a door and the door frame therefor h aving'a rabbetto'recei'v'e the door,

of vertically.disposed toothed racks fixed in horizontal alinement on the door,fa shaft, gears fixedly carried by said shaft in mesh respectively with said racks, a closure plate supported by said shaft, keepers for guiding said shaft to hold said gears in mesh with said racks, said keepers mounted to slide to a predetermined degree to limit then'pward movement of said plate, and a collapsible the plate knee havingmeans whereby to be yieldingly held in normal collapsed state, said knee being pivotally connected at its upper end to the door and at its lower end to said shaft, the joint of said knee being normally ,lo cated over the outer edge of the door to engage with the door frame in a closing movement ofthe door to cause said knee to straighten out when the door is seated in the rabbet of the frame.

[2. In a device of the class described, the combination with a door and door/frame, said frame having a rab'bet to receive the door, of a closure plate slidable upwardly from'the floor, keepers loosely overlapping said plate and mounted on the door toslide vertically thereon, a horizontal shaft rotatably supported on sa'id'k'eepers and connectof the door, totliereby straighten out said knee when the door isseated in said rabbet, V and means including gears and racks in coacting relation, operatively' connecting the door to said shaft whereby thelatter will move vertically in parallelism with the floor when said knee is actuated. V

'3. In a device of the class described, the combination with a door and door frame of a closure plate adapted to extend below the door and engage the floor when the door is closed, supporting means carried by t-he door operatively connected to said plate,

said supporting means including a plurality of racks secured to the door and a horizontal shaft projecting at one end beyond the door and carrying gears in mesh with said racks,

said shaft .being effective responsive to an upward pull thereon to raise said plate in parallelism from the floor, and spring actumovement of the door to impart alowering movementto said closure plate.

I ated means ,operatively connected to the pro v ect1ng end of'said shaft and door, said 4. Ina device of the classd'escribed to be attached to the face of a door, .the combination of a shaft adapted to be 'arranged 'parallel to the floor, a closure plate 'hung on' said shaft adapted to extend to the floor,

-mechanism adapted "to connect said shaft to c the face of the door for rendering said shaft vertically movable in parallelism with the 1 floor, a'link adapted'tobe pivoted on the door and to extend downwardly and in wardly beyond the face of the door, adjacent the edge thereof, a link pivoted to the lower end of saidlink adapted to extend downwardly to said shaft and having pi'v- 5. In a device'of the class described tobe 7 attached to a door, the combination of a hinged knee adapted to bend in a vertical plane at right angles to the face of the door and adapted to be pivoted at its upper end to the door adjacent the outer vertical edge thereof, the joint of the knee being normally located'adjacently opposite the outer edge of the door, a spring adapted to yieldingly hold said knee bent, a shaft pivoted to 15 the lower end of said knee and adapted to be arranged parallel to the floor, and norand tubing and revolubly mally extending from: side to side ofthe I door, a closure plate adapted tofextend from the floor to said shaftand having loose con: nection with the latter, a gear carried by said shaft adjacent each end thereof','a rack for each gear normally secured to the door,

a tubeloosely surrounding said shaft be-" tween said gears, and keepers normally slidably mounted on the door to slide vertically thereover while extending over said plate latter.

supporting the V In testimony whereof we affix our signa 1 AXEL oLsoN. ALFRED HAST.

tures.

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