US1550053A - Garage-door opening and closing device - Google Patents

Description

Patented ug. i8, 1925.

rpt

GARAGE-DOOR O'PENING-AND CLOSING DEVICE.

Application filed November G, 1924. Serial No. 748,239.

To al? 107mm t may concern.'

Be it known that l, Hanny WILLIAM DUDLEY ARMSTRONG, a subject ot' the King' of Great Britain` and a resident of thecity of Toronto, in the county of York, in the Province oil Ontario, Canada, have invented certain new and use-ful Improvements in Garage-Door Opening and Closing Devices, of which the following` is the specification.

My invention relates to improvements in garage door opening` and closing devices,

and the object ot the invention is to devise.

simple means which is operated by the weight of an automobile, t'O-r automatically ope-ning the garage doors as the automolfiile approaches them when entering the `garage, and automatically closing;- such doors hehind the automobile as it passes into the garage, and it consists essentially ot the arangement and construction ot parts hereinafter more particularly explained.

Fig. 1 is a sectional perspective view of av fragmentary portion of a garage showing the run-way there-into, garage doors, and my operating' mechanism therefor, looking' towards the inside oi the doors.

Fig. 2 is a longitudinal sectional view through my device.

Fig. 3 is a sectional plan vie-w on line 3 3, Fig. 2.

Fig. 4 is an enlarged detail view of my garage door operating` mechanism.

In the drawings like characters ot reference indicate corresponding parts in each figure.

1 indi fates a portion ota garante` tloor. 2 and 3 are ruu-\\.'ays approaching,l the garae'e, and l is an inclined run-way portion which inclines upwardly as indicated at -'l from the ends ot' the run- ways 2 and 3 to the hottom of the `garage doors, and from thence inclines downward inwardly of the garage, as indicated at 4, to the level ot' the Hoor 1, as indicated.

5 is the frame of the door, provided with a top plate or lintel 6. p

7 is a transverse channel-way formed in the run-Way 4 at each side ot' the door frame 5.

8 and 9 are channel-ways formed in the inclined portion 4X of the run-way portion 4, Such channel-ways extending from the ends of the run- ways 2 and 3 to the transverse channel 7, as clearly indicated in Fig. 2.

10 andll are channel-Ways extending` in- `clined port-ion et* of the run-way portion fl wardly from the transverse channel 7 to the end Ot' the inclined portion Ll@ of the run-way portion 4. "Hiwit" 12 and 13 are the doors of. ,tlwigarage which are formed integral at ,ttl outer edges with cylindricalmpost members 14, which are suitably jouriialled in their upper and lower ends respectively in theI top plate G and in the run-way portion 4. t

15 is a transverse bar located in the transverse channel 7 and preferably invertedT shaped in cross section and provided at each end with an upward extension .16.

The vertical-flange 15X of the T-shapeddiar is provided at each side wth` a pair of luejs 17 and 18 respectively loca-ted in proXiu'iit- `\',v to each end ot the bar, and in align with the channel-ways 8 and 9, and 10 and 11.

19 and 2O are long tread plates which rest at their outer ends on the bottom of the channel-ways S and 9 and normally incline up ward on a level with the upper edge ot' such channel-ways or with the surface ot' the inand are. pivotally mounted at their opposite ends between the lugs 18.

21 and 22- are short tread pla-tes which rest at one end on the bottom of the run ways 10 and 11, that is, at the ends remote from the garage doors,` and arel pivotally` mounted at their oppositel ends between the. lugs 17 of the bar 15.

23 ar y pulleys which are mounted upon the vertical members oi the. door frame 15 at each side of the door.

as indicated at 25, in proximity tothe tree.

edge of the door, the opposite end-ot the rope passing over the pulley 23 and downward,- the lower end being;` connected by a suitable link connection 26 to each upwart.- ly extending portion A16 `fof the bar 15.

27 is a pulley'mounted upon the plate 6 at each side o the door frame.

y28 is a cord extending over each pulley 27 one end of which. depends freely and carries a Weight 29.

The opposite` end of the cord depends downward and is connected at 30 to the oord 24. v

v31 is a pulley which is mounted upon each vertical member; of the door frame 5. 32 is a cord connected at its upper end to the cord 28, as indicated at 33. The opposite end of ne co1 d und i f` i nuerinernutcly ot its width :is

"iucpul ports inbrieliy dey, y `urbesthe. grunge, gevel upon tne run-Wore @l 1T A, me inclined tread platee n ere gludimlly depressed of ih.; automobile the "el long iitiulinullyof the tlu depreeeion of the und 2() the transverse bnr Lrd, the ends ot the bur bnr horizontal position or p .ulinnl :alignment with rn'c'seed trend olntc-S l) and 20,. porton this operation u downward pull exeiuxd upon the cords 24e, which rte pull round the door ,post M, round el) they' have p d to the front Side ,ot door, end therefore exert an outward pull upon the free portion of the door, rswuggiiig it outward to the open position indicate by dotted lines in Fig. 3. The 'tion 'or pull. upon th corde :2. pull upon the cords 28 ee, 'rying tl "lits 29 upward, the weight being at the. lin" or its upward movement when tre-ud tes i9 und 2O and 21 und 22 depressed :o the ullest extent. it will elec be. nude od the.L when the weights 2 effe carrie/.l upward, theotlier oi? the onine cord .'28 to which the is Glied depending troni 'the op Y the pulley 2?' to the Weight, i und therefore pern'lits u to occur in t c coi-:l 32, permitting f evi/'ing ot 'the doors fre before .nobile 'travels into the t" the l eed plates 2l and 22, t, s :ire relieved of the weight 'tie automobile, :allowing the bar l5 to be carried iqnvurtl. again to its normal position by the weights 28 which descend Aand at the eznne tin/ie exert e pullupon the cords F32, pulling the doors to the 'closed position, the cords Q4 being slackened olf by Ineens ol the cross bar l ascending during` thisoperetion. lt will olf course be understood that the of this operation takes place when the automobile is leaving the lli-oni 'this description it will be seen that I have devised n very simple device tor opening und closing garage doo s, which 'fill lie. absolutely automatic, being` operable by the weight olI the :uitoinobile as it travels into thel garage.

Whut ,l cluiin my invention is:

In a` garage door opening` and closing device, the combination with the door frame conuln'ising` vertical Side Inen'ibers and horizontal iop ineinbersand 'substructure upon which the irznne is supported, o1 :i parir ol cylindrical door posts journalled at their upper ends in the iii-unie und at their lower endsin the substructure, a door carried by euch of vsaid cylindrical door posts, n cross bar 'guided vertically in the substructure beneath the level of the doors, a pulley mounted on euch vertical of the door trame, :L cord connected to each end of the cross bnr and pzissiivbupward over the aforesaid pulleys around the cylindrical door posts und connected et their opposite ends to the outer 'lince ot' euch door, a4 Weight holding;r cord also connected at each end of the cross bur, a pulley mounted upon the horizontal ineniber of the door freine at 'each end thereof over each of which one ol' the Weight holding cords pass, e Weight secured :it the free depending end of each of 'such eord's, und e, cord connected to the Weight holding cord intermediate its connection to the cross nur und itscerrying' pulley, e guide pulley oleo carried by each vertical of the door traine und around which the last mentioned cord posees to it's pointJ of attach infanttothe inner face of each garage door,

und tread plates hingedly connected to each ot the cross bur over which the Wheels ont the ziiutoniobile are adapted to travel as the automobile passes into and out of the garage.

HARRY WILLIAM DUDLEY ARMSTRONG.

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