US1710108A - Mill-type door - Google Patents

Description

April23, 1-929. J. w. ORRocK 1,710,108

MILL TYPE DOOR Filed Dec'. 18, 1926 f5 Sheets-Sheet I gwventoz April 23, 1929, 1 W, ORRQCK 1,710,108

MILL TYPE DOOR Filed Dec. 18, 192e 3 sheets-sheet 2 l gwuentoz Patented Apr. 233, 1929.

UNITE- omas,

JOHN WILSON ORROCK, or MONTREAL, QUEBEC, CANADA.

MILLTYPE noon."

Appncatien med/December 18,1926. seriai iva-155,616.

This inventionl relates to doors, andlmore particularly' toa heavy dutyfdoor adapted for use in' mills,fwarehouses and other pla'ces requiring largedoors; y

A primary object of the invention is to provide a door of the character set 4forth including a metal frame carrying therewith a non-metallic lller` the said frame being a rigid rse'lf-sustaining structure and-serving asv a base' for attachment of hinges,

hangers and door supports.y In that connection it is proposed to provide a construction wherein the door and its' supports provide `av metal toimeta'l Contactv whenfh-ung, in contrast with the usual metal towood construction.

Another object ofthe invention is to provide a constructioii wherein no' strain whatever is imposed on any of' the wood members, the weight being carriedby the metal frame to which the hangers or hinges are attached, and therefore the door', when hung, will not sag, warp' and pull` apart as is frequently the ease with ordinary doors'.

A further object of the invention is to* provide a mill-type metal frame door that is niuch stronger than the ordinary wood door of the same sizev andconsequent-ly does not require as heavyy hardware or supports; takes up less room; is easier to handle, and can be housed snugge'r than the ordinary door.

Vith the above'and other objects in view which ywill more readily appear' as the nature of the invention;l is better understood, the

same 'consists in the novel'construction; combination and arrangement of: parts hereina-ttor morefully described, illustrated' and claimed.

A preferred and'prac'tical embodiment'of the invention is shown in the accompanyin g drawings in which Figure l" is a. perspective view of a door constructed in accordance' witli tliepr'e'sent invention:

Figure 2 is a horizontal sectional view taken on the line Z-Qof Figurel.

Figure 3 is a detail perspective view of the metallic frame ofthe door.

Figure 4 is a view illustrating a modified typefof door mounted on hinges.`

Figure 5 is an enlarged detail sectional view taken `onthe line 5*-5 of Figureit.

Figure'G'is a detail sectional view taken on the lineG-'G 'of Figure 3.

Figure 7 is an enlargedfragmentary sectional viiew showing a modified form of' ver-r tical frame member.

`Similar reference characters designate corresponding parts throughout rthe several figures of the'fdrawings. i f i 1 As heretofore indicated, a distinctive feature of the invention is to provide an all metal door framing'which carries the entire weight ofthe door and thus` relieves the non-metallictiller of an'ystrain or pressure. Accordingly, aswill be observed from Fig` ures 1 and'rit is' proposedy to provide a door including the rigid rectangular metal frame worlrA and the `non-metallic liller B which ispreferably of stout wood strips of suitable cross-sectional form;

Themetallic frame A includes in its organization, the'side trame members 1 and substantially triangular formation and have an offset flange portion 5a for engaging with the' top and bottom edges of the. channel frame members 3 and 4 respectively at the saine time providing additional stitr'ening and i'eint'orcen'ient because of their flanged formation; f j

Iti willthus be apparent that the frame A consists of structural metal shapes heldy rigidly in position by the'reinforeing gusset or corner plates 5 thereby providing a' rigid and stablerectangular frame for receiving the lille'r or panel Bv whichV preferabtT is made of interlocking tongue and groove strips Gjnailed as' indicated' atm (Fig.y l) or otherwise fastenedv each to the other as they are put in the frame. As shown in the drawings, the heads of the nails for securing one strip in place are covered by the neXt adjacent strip so that all of the fastenings for the strips are completely concealed. The upper and lower cut edgesof the wooden panel strips 6 Vsnugly lit within the channel members 3 and4 so as to be firmly secured at their ends as well as protected against the weather, and the shank or web portion n of the vertical members 1 and 2 is clamped between the end members 6 arranged at the vertical marginal edges of the panel, as best seen in Figure 2. y i

Figure 7 of the drawings illustrates .a

ymodified form of vertical frame member la which also is of'channel formation like the `members 3 and 4. In this forni of construction the wooden strips may seat in the channel and are therefore secured and concealed at their edges. f

Figures 4 and 5 of the drawings illustrate an embodiment of the invention as applied to doors of the hinged type. In Vthis form of the invention, each door includes a metallic self-sustaining frame A and the non-metallic filler or panel B. The frame A includes the vertical metal frame members l and 2d which are connected by the horizontal top and bottom lframe members 3 and 4a as well as the intermediate rail 7. In order to add stability to theframe, diagonal braces 8 are used at the inside of the panel or filler A. Also, the horizontal and vertical frame members of the door are'y connected by the c triangular gusset plates 9 which reinforce the junctions of the horizontal and vertical frame members. Inaddition to reinforcing these vframe members, as just indicated, the gusset plates afford meansV for attaching the strip portions of the hingesv 10 so that the door is adequately supported at the door opening.

The wooden panel or filler B of the type of door shown in Figures 4 and 5 of the drawings preferably corresponds to the Ypanel or filler of the door construction shown in Figures l and 2 0f the drawings. That is to say, the panel or filler BYpreferably is `of the mill-type construction, the same conit is preferable to provide a substantial marginal wooden framing 'surrounding the metal door frame, the said vwooden framing consisting of a plurality of relatively wide wooden strips l1 secured each to the other by nailing or otherwise as indicated at w, and fitted in the outer angles and against the -webs of the frame irons or members l and 2.

In the form of invention shown in Figure 4.of the drawings there is suggested the featureof a wicket IV which maybe utilized for access through the large door when it is not necessary nor desired to employ the full door-opening for entrance or exit.

It will be readily apparent that both of the foregoing described constructions fulfill the distinctive object of providing the selfsustaining metallic frame (A or A) for carrying the `full load or weight of the door without imposing any of the stress or strain on the wooden fillers. rlhus the rigid frame aifords convenient means for supporting the entire door through the medium ofthe hangers rH in Figure l which shows a sliding Atype* of door or on the Vhinges l() in the swinging type of door in Figures 4 and 5. This construction results in a inuch stronger door than an ordinary wooden door of the same size and also provides a slow burning structure which for all ordinary purposes is practically fire safe. Furthermore, due to the combination of the metal frame and the hinges or hangers, an all-metal Vsupport is providedwhich does not sag or wear like the ordinary door whereinr the hinges or hangers are secured to the wood part of the door by bolts or screws. Thus, the present construction is to be distinguished from wooden or yother non-metallic doors which merely have metallicy edge guards or the like and which depend for their anchorage and support upon the, wooden or non-metallic part of the door itself.

From the foregoing now will have been observed that the door hanger members or the door hinge members are riveted or fastened directly to the metal frame work of the door, and particularly to the strong and well reinforced corner parts thereof. Thus, the door hanger or door hinge members are in effect an integral and rigid part of the fra-me, and where the'said hangers or Vdoor hinge members are located, the metal frame is well and strongly reinforced. Consequently, t-he use of bolts is entirely dispensed with in securing the hangers or hinge parts to the door frame, and thefcombination provides hangers and hinges which are a part of the metal frame, being rigid therewith so that an all-metal support for rthe door is provided which does not sag or wear like the ordinary door where the hanger parts or the hinge parts are secured to wood ,by bolts or screws.

lil)

may be resorted to Without departing from the spirit oi the invention and scope of the appended claim.

I elaimz-f n i A heavy-duty mill-type door Comprising two component parts, namely, a self-'sustaining rectangular metallic frame 'fabricated with Structural metallic shapes having Het outer faces and gusset plates Secured to seid y faces and having offset flanges for engaging the youter edges of the 'frame members at the top and bottom ofthe door, and a Wooden filler arrangedfwithin and supported by said frame. l

In testimony whereof I hereunto aix my Signature.

JOHN WILSON ORROCK.

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