US2508972A - Door carrier - Google Patents

Description

y 1950 D. w. SHATTUCKQ 2,508,972

DOOR CARRIER Filed July 9, 1948 2 Sheets-Sheet 1 2 Sheets-Sheet 2 INVENTOR. DAN/4 14 5fifi7'71/c'k.

D. w. SHATTUCK DOOR CARRIER [gay May 23, 1950 Filed July 9, 1948 Patented May 23, 1950 DOOR CARRIER Daniel W. Shattuck, Indianapolis, Ind., assignor to Universal Door Carrier, 1110., Indianapolis,

Ind., a corporation Application July 9, 1948, Serial No. 37,873

7 Claims. 1

This invention relates to a door carrier.

The chief object of the present invention is to provide a door carrier that can be operated by one or more operators simultaneously and applied to a door for moving same from closing position to open position with a minimum of effort and practically regardless of door size and vice versa.

This invention is peculiarly applicable to handling of large doors for airplane hangars and the like although not necessarily restricted thereto. Such doors for example may be some thirty or more feet high and twenty or more feet wide so obviously are too large and too heavy for one man handling in an emergency. Such a hangar may be some hundred or so feet wide requiring the requisite number of door units.

A single carrier, as herein contemplated, is interchangeably associated with such doors for moving same from storage to closing position and vice versa. This carrier can be selectively associated with any one or a group of doors as desired and regardless of the position of the desired door in the complete closure comprised of a plurality of doors regardless of width.

The chief feature of the present invention resides in the construction of the basic unit of the door carrier.

A further feature resides in the door carrier comprising, when desired, a plurality of connected carrier units.

Still a further feature of the invention resides in the balanced construction of each carrier unit.

Other objects and features of the invention will be set forth more fully hereinafter.

The full nature of the invention will be understood from the accompanying drawings and the following description and claims:

In the drawings, Fig. 1 is a front elevation of a wide door with a triple unit carrier applied thereto.

Fig. 2 is a similar view of a narrower door with a dual unit carrier applied thereto.

Fig. 3 is a similar view of a dual door forma tion with a single unit carrier applied to one of the doors.

Fig. 4 is a vertical sectional view through a door, a frame therefor and the carrier applied thereto, the parts being shown in full lines as disposed just prior to door movement from the opening or just after the door has been moved into closing position, dotted lines indicating the position of certain of said parts when the door is free from its normal support and carried by the 'ber of suitable construction depending upon the use of the structure to which it is to be supplied. I5 indicates the entrance or threshold. I6 indicates a door frame carried bracket including the upwardly and outwardly directed notch I! there'- in. The side of the door may include the locking pin 18 for holding the door closed when lowered and applied to the opening.

The upper end of the door l4 mounts supports [9 which support in offset relation relative to the door the hanger member 20. These are arranged in pairs, although not necessary so to do, but there are at least two to each door. Each hangenin the plate portion which is of inverted keystone outline, see Figs. 1 to 3, includes in its lower edge a notch 2|. The upper portion 22 of plate 20 is turned upwardly and inwardly toward the door, see Fig. 4 and is slotted at 23 to take the hook portion l3.

The door carrier to which this invention is directed is rollably supported upon track l2 and has portions 3i! adapted to hook under the plates 20 and seat in notches 2| thereof. Then when said portions are elevated and moved outwardly from the door opening the door is elevated and moved outwardly. This frees the pins 18 of notches I1 and the tongues 22 of the hooks 13. When so freed, the door is carrier supported and can be moved with the carrier along the rail to where desired. Reverse movement is effected for door closing. In this instance gravity assists in looking the door in closed position at the hook l3 and notch ll of plate It.

Reference will now be had to Figs. 1 to 3 more particularly, wherein is illustrated several of the possible door and carrier combinations. In Fig. 1, 3A indicates a'door with which is associated a three unit carrier designated 30, each carrier unit being designated by the letter C and connected together by bar 3B as shown.

In Fig. 2, 2A designates a door with which is associated a two unit carrier 2C each carrier unit being designated by the letter C and connected by the common bar 213. In Fig. 3 there are two 3 individual doors A disclosed and the single carrier unit C, selectively associated with either, is shown applied to the left hand door.

Having thus briefly described and illustrated several of the many combinations possible reference will again be had more particularly to Figs. 4 and 5, it being understood that each for the length of bar-B or-its omission, the carrier in each instance includes 'N like carrier units "where N is a whole number. The door in each instance has applied thereto 2N plates 20 and each pair "of plates is spaced apart as determined by theun'it carrier and the pairs of plates are spaced apart as determined by the spacing between units "of the carrier where N is greater than unity.

In said Figs. 4 and the carrier unit is shown comprised of spaced end brackets! which' pivot ally support at 25 the roller or trolley frame 26 mounting one or more grooved wheels 21 which roll, at all times upon rail 12. The spaced end brackets each 'may comprise 'a box frame jor the like and same are connected by member 28.

Depending from each :bOX 'fra'me-or the like is the'rigid member 29. 'These'at their lower e'ni'is are-connected bymemb'er 3!]. Also at suitable-interv'al's at one or more places the members 2 9 may 'b'e'cro'ss connected as indicated at 3|. The result is a comparatively rigid base frame 'thatis'rollably supported by the track I 2.

'To 'each depending frame member 29 and at a predetermined distance from the top -thereispivoted at 32 a "link 33. I Adjacenl' thereto and slightly lower thereon there is pivoted at 34 a strut member 35. These two are'directed upwa'rdly and oppositely from member 29. A link 36 "is "pivotally connected at opposite"ends 'to the upper end of link 33 at 3-1 and to strut member 35 near its upper end at 38. Member 35 terminates in the hook 39 that engages innotc'h 21 of pIate'Z'U.

Depending from the pivotal connection and pivoted thereto is a depending actuating member or arm 50. Its lower end is angled inwardly as indicated at 49c and "is pivoted at 4 1 to an 'arm lZ'pivoted at 53 in bracket "44 carried by member 29 near the lower end as 'at 45. as herein shown .tlfiepivot'edend of arm-His connected as by'm'e'inber 46*tothe corresponding endof the other arm of the unit. Also the free ends -bf arms flare eo'nnecte'd togethe'ras 'at flfi'n fact armstejmeniber 46 and member 41 comprise a rectangular type actuating arm for a pair of spa'cedlifters.

The cross-bar portion 41 and arms 42 =may cornpr iseasingle bar bent into U-s'haped and welded 'at the ends to the tube 46. Bar WI is suitably punched to provide spaced bolt holes whereby the cross-bars B between carrier units can be bblt'ed thereto.

Hence one man can simultaneously "operate light weightunwieldy doors are pluralityof'o'perators can'simultaneousl'y operate the's'everal units of a carrier.

sp e'cificc'ar'rier unit operation is 'as follows: Thecarrieris rolled'in'to place in-fi'o'nt'bi meager to be moved. The cross ba'r or handle -4'l is then raised t slightly abov'e'the position shown in full 4 to building structure restraint. When free of hooks l3 the door is further elevated and as handle 41 passes downwardly over center to the dotted line position the door is fully elevated, free of the building structure and its lower portion can bear against cross member 30. The carrier now can be moved with the carrier supported door along the track lz to'the desired l'position and the doorthen lowered into storage position in a manner the reverse of the aforesaid. To close the opening the door is picked up from the storage f'positi'on, transported to the opening to be closed and deposited upon hooks I3 with pin I8 in slots v l1. when lowered'a'nd released the door by its w fyw st t iresinwardly to seal the opening.

While the invention has been illustrated and described ih g-ieat detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character.

The several modifications descr nied herein as we'll -as others which will readily suggest themselves to persons skilled inthis art, all are cons'idered to "be within 'the"br'oa'd scope of the invention, reference-beinghad to the appended claims.

The invention claimed is:

-1. In 1a,-free-doorclosable structure having at least one free door witlrat least afpairof hanger plates thereon, a similar number of hooks dis- .posed above the opening to be closed by that door, and an overhead rail, the combination therewith of a door carrier comprised of a pair of spaced trolleys rollable upon the =rail, a pair of spaced depending supports "disposed in a plane offset from the plane of "troney and "rail, cross connections 'betwe'en'tne -depending supports, a hook ihemberpivoted upon each support,"alink member fpivo't'ed thereon -in offset relation 'to the first pivot, "a 's'e'condlin-k' piv'otally connected to each of "the 'hook 'me'mbersmearthehook portion thereof and to *the respective link members, 'a'lever arm pivoted upon each of the support members near thelower-'end thereof; and "a tie rod pivotally'-'conn'ected at opposite ends to the lever 'arrns in spaced relation to the pivotal axis *1. erect and to the -pivotai connection between the links.

2. -sti' -uctu're as defined by claim :1, wherein 'there is pro'vi'ded'a cross-bar handle between the lever arms.

'3. A structure as defined by "claim 2' wherein the cross bar handle and lever ca' rms :comprise {a U=shaped member.

4. A structure as defined lay claim 2 wherein a rectangular open type membercomprises -'the said lever arms; the said cross-bar handle therebetween and a'migid connection between =s'aid lever -a;rms' sub'stantially =c'oincident with the pivotal axis of the arms.

5. A door carrier unit comprised of a rectangul'a'r' elongated fra'me rolla blysupported at ='='the upper end, a U 'sha'ped handle 'lever arm structure pivotally supported by l the frame near the lowr l'id, a 'lfid extendingiupwarmy from each arm and pivoted thereto in spaced relation to the ends cinthe arr'ris, atriple link "pivotally interconnected structure for each rod and dleposed below the "top of the ira'me and arranged gen erally in triangular positiomion'e pivotalrconnection being coincident with the rodwdnnee- "tion,- the adjaceritends of the-end links having 'iiidepe'hde'nt'piviitar connection to the mama-ans upwardly and outwardly directed hook-formed extension.

6. A door carrier comprised of a plurality of substantially identical units, each being as defined by claim 5, and means rigidly connecting the handle-lever arm structures together for simultaneous movement.

7. A door carrier as defined by claim 6 wherein means is provided connecting the frames together.

DANIEL W. SHATTUCK.

REFERENCES CITED UNITED STATES PATENTS Number Name Date Shattuck Apr. 20, 1926

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