US1552723A - Cellar door - Google Patents

Description

Sept. 8, 1925. l v 1,552,723

l oA w. MIELENZ GELLAR DOOR Filed Oct. 8, 1925 2 SheetsSheet 1 IN V EN TOR.

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Sept. 8, 1925.. 1,552,723

o. w. MIELEN'Z GELLAR Doo Filed Oct. 8, 1923 2 Sheets-Sheet 2 C ly' T f billig-Q55 Patented Sept. 8, `1925.v

' UNITEDSTATES ocr'ro. W. MIELnNz'-, or PHILADELPHIA, PENNsYLvANrA.

f i 1,552,723l PATENT-' OFFICE.

i GELLAR Doon.

Y Application filed octber s, 1923. seria; No. 667,338.

To all 'whom t may concern.' Y Be it known that lI, O'r'ro'VV. MIELENZ, a citizen of the` United States, residing at Philadelphia, in the county of Philadelphia and State of'Pennsylvania, have invented certain new and Vuseful Improvements in Cellar Doors, ofwhich the following is a speciiication.

This invention relates to improvements in cellar' doors and particularly that type of dpor which'is positioned in a sidewalk or the li te. 'l

' An important object of the invention is to provide adoor which is compact and durable of construction and rests flush with the sidewalk when Closed. l f r:

Another obj ect'of the invention is 'theprovision of adoorw'hich will-,efliciently drain rain water or the like therefrom. v'

Other objects and advantages of'this in vention will be apparent during the course ofy the following description. y y n In the accompanying-,drawings forming va part of this specification and in which like numerals are employed to designate .like part-s throughoutfthey same: f y

Figure 1 is a plan view of the 'device in position,

Figure 2 is an enlarged view of one of the details, Y v

Figure 3 is a vertical sectional view taken on the line 3 3 of Figure 1, Y

Figure 4 is an enlarged sectional view of the door hinges in closed position, and

Figure 5 is a similar view showing the door hinge in an open position.

In the dra-wings, wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 10 designates the door frame as a whole, said frame consisting of four channel members 11 which constitute the longitudinal and transverse bracing members. The ends of the channel members 11 are united at the corners of the frame by the channel braces 12 which are of special form and adapted to receive the channels therein and may be bolted or riveted as desired. In order to prevent movement of the special channel braces l2 they are provided with anchor straps 13, said anchor straps extending beyond the braces and being embedded' in the concrete or the like.

Door hinges denoted as a whole by the numeral 14 are fastened to the inner corners of the channel braces 12. The constructionr'of the hinges lt'comprises a bracket 15 which lis provided withopenings for the reception of screws 16 or the like, and a trans'- verseplate 17which is securedto the bracket by means of rivets 1,8 or thelike. A like plate 19lis secured' to va door and 'adaptedto lrest upon: the first mentioned plate 17in the closed position of thehinge.V A lever 20 Y whichfis bent at the desired angle is `pivoted to the plate 19' as at 21, the pivot 21 being stationaryin` the plate and permitting the lever 20 toV swing thereon. The-opposite end Aof the lever 20,'carries a pin 22 .which is slidably mounted in an elongatedv slot 23 in theplate 17, thereby perniittingtransverse -move-ment of the pin along said plate. A

similar lever 2.4 is likewise secured yt0 the Aplates 17 and 19 but in inverse'd relation,

this Iarrangement rof levers permitting 75 swingingpmovement'being imparted to the plates 19 carrying a pair of doors 25 and 26.

The rswinging door'25 carries 'the transverse channel 27 secured tothe outer edge thereofgsaid channel beingstrengthened by an 30 angle iron 28 fastened beneath same and extending along its outer edge. -A slidingbolt 29 is positioned at one end of the door and secured thereto vby. ther strap 30 which-controls'the'tmovement of said bolt.l A com- 85 monly used type of sliding ycatch. lock Slis fastened to the door 26 and so positioned as to allow the Alatch to slide under the channel 27 and preventing upward movement of they I doors.

the doors. n

It is obvious from the preceding descrip- In some instances it may be advisable to provide a weatherstrip 32to prevent accumulation of rain water or the like over n n tion that a compact and durable door for cellars and the like is provided, and advantages over like devices now'in use are apparent. In closed position the transverse center channel 27 and its reinforcing angle iron 28 are tted into special openings in the cross channels l1 and rest thereon, there- Vby supporting one of the doors. The other doorrests upon one edge of the channel and is locked beneath same by the sliding catch lock 31. In an open position a guard rail may be inserted by providing suitable apertures. in the angle iron 28y and securing a clip or the like to the opposite door, the rail being inserted and thereby held in position.

It is to be understood that the form of my invention herewith shown and described is to be taken as the preferred eXampleo the same, and that various changes in the shape, size, and arrangement of parts may be resorted to Without departing from the spirit of my invention or the scope of the subjoined claims.

Having thus described my invention, I claim:

l. A device of the character described, comprising a frame, a pair of doors arranged upon said frame, a series of plates carried by saidframe adjacent the corners thereof, plates carried by said doors and arranged adjacent said ltirst mentioned plates vso as to provide .a plate carried by said door and a plate carried byvsaid frame adjacent each corner of said frame, a pair of levers -at each: corner ofsaid `frame, said levers being pivotally connected :together and each having one end pivotally connected to one otsaid plates, and `means for connecting `the opposite endsvof said levers to said plates to permit ia flimited sliding movement of one endvo'f said levers Withirelation to said plates.

2. A `device of the character described, comprising a frame, `a pairoi' doors arranged upon said frame, a `series of-plates carried by said frame adjacent the corners thereof, .plates carried by said doors -one arranged adjacent each of said lirstzmentioned plates, each o-saidplates havinga longitudinal slot therein, a =pair of llevers at each corner ot said frame, said'levers being pivotally connectedy together land `each having one end pivotally connected :to one of said plates, and'pins carried by theopposite ends of said levers and slidably `receivedin said slots.

3. A device of the character described, comprising-a fra-mma pair of doors ar ranged upon said frame, a series of plates carried by said frame adjacent the corners.

A:tndinal slot therein, a pair of levers at each corner of said frame, said levers being pivotally connected together and each having one end pivotally connected to one oft-said plates, and .pins carrie-d by the opposite ends off said levers'andwslidably received in said slots, said slots being of. avlength sucient to permit said doors'to besivung past a dead center tol hold the same in: an open or raised position.

vil. A `device `of 4the character described, comprising ay frame, ya pair of f doors -arrangedfuponsaidframe, a series ofxplates carried by said frame adjacent the corners thereof, plates carried bysaidk doors and arranged to lie above -said first mentioned plates `when said ,doors are lin a closed position so as to provide a .pair of parallel plates at leach ,cornerof said lframe, each or said plates having a longitudinal slot therein, a pair .of levers `lat reach corner 'of said frame, .said'levers'being arranged uponthe opposite sides of said plates 'and beingpivotally connected together and reachthaving one Iend pivotally connected to one of :said plates, and pins carried by the opposite ends of v said levers `and arranged' toA slide `in said slots when said doors are opened and closed.

In testimony whereof, "I have aiiiXetl my signature.

OTTO W. MIELENZ.

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