US1378127A

US1378127A - Adjustable-link door

Info

Publication number: US1378127A
Application number: US379221A
Authority: US
Inventors: Ogden John Edward
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-05-06
Filing date: 1920-05-06
Publication date: 1921-05-17
Anticipated expiration: 1938-05-17

Description

J. E. OGDEN.

ADJUSTABLE LINK DOOR.

APPLlCATION FILED MAY6.1920.

IOOOOO OOQOCKO J3 i? m J/Jr g V {EM/07:31

Patented May 17, 1921;

' JOHN EDWARD OGDEN, OFIMOUNIAINVILLE, NEW YORK.

- ADJUSTABLE-LINK noon.-

Application filed May 6,

. To all whom it may concern: 7

Be it known that I, JOHN EDWARD OGDEN, a citizen of the United States of America, and a resident of Mountainville, county of Orange, and State of New York, have invented certain new and useful Improvements in Adjustable-Link Doors, of which the following is a specification, reference being had to the accompanying drawings,

forming a part hereof.

This invention relates to improvements in doors of-the type used in warehouses, pier sheds and similar places where large openings are to be covered and where the space through whichthe doors are'moved to open is valuable and limited.

It relates more particularly to doors of which a section at least is suspended by links which swing such section of the door into a substantially horizontal position when it is open. It is common practice to have another section of the door slidable up onto the link suspended section before the latter is moved. Such doors are necessarily heavy and the problem of counter-balancing them becomesquite complex.

The specific object of this invention'isto provide links of adjustable length and connections between the link suspended door section and the links which are adjustable in position for the purpose of simplifying the counter-balancing adjustment of the installation.

Incidentally, other advantages are attained by this invention, which will appear in the following. specification, in which I will fully describe the invention, the novel features of which willbe set forth inap-v pended claims. Referring to. the drawings:

Figure 1 is an end elevation of a door of this general character with an embodiment of this invention applied thereto.

Fig. 2 is an elevation of a two-part link of adjustable length.

Figs. 3, A and 5, are elevatlons of parts of links of other constructions, which are also adjustable in length and which may be used in carrying out this invention.

Fig. 6 is a sectional plan view of a part of the mechanism shown in Fig. 1, the section being taken on the line 6-6 of the latter figure.

Fig. 7 is a side elevation of an ad ustable link pin plate of different construction than that shown Figs. 1 and 6.

Specification of LettersPatent. PatenijedMay 1'7, 1921,

1920. Serial No. 379,221.

Fig. 8 is-a side elevation of another modification of a link pin plate. 7

Like characters of. reference designate corresponding parts in all the figures of'the drawings. i

1O designates a ating shaft and 12 a counterweight sheave door-header,"11 actuaffixed to theshaft. 13 is a. link support affixed to-the door header in desired posi tion as by bolts 13 passing through desired holes 13 ina flange whereby its'pok sition may be adjusted. The side posts of the door openingare designated by 14, and 15 is a guide parallel with these side posts.

The upper door section, designated by 20, is of sufficient width to enable it to overlap the opening and rest' upon the side posts 14 when it," is closed. Thisjuppe'r door section is suspended from the super-structure by a two-part link '21, 22rotatably connected with the support 13 and by link pin Q plates 23 with the edges of this door section f about'mid-way between thetop and bottom thereof. These plates projecti'nwardly beyond, the side posts 14:.

According to thisinvention, the distance of the pivotal connections between the lower 1 ends of the links and the door posts is adjustable for reasons which will be fully de scribed hereinafter.

At the sides of the upperdoor section are channels 24: which protect the sides and outer edges of this door section and form guides for the reception of "the lower door section. 1'

The lower'door section 30 has rollers 31 near itslower corners, which run in th'e guides 15. The vertical edges of the'upp'er I part of the lower door section enter the space between the inner surface-of the upper door section and'the inner flanges of the channels 24:.

l 32 designates one of the hoisting'ch'ains or cables of which there are two,alocated one at e'achof the opposite sides ofthedoor.

These run over the sheaves; 12 onflthe actuating shaft 11 and down to counterweights 33. j I r 7 Before describing thenovel features of the present invention, the operation of doors per door section. This will uncover a"sub-' stantial part of the door opening, enough in r fact, to make it usable. Projections, such as those formed by brackets 34 afiixed to the lower part of the lower door section limit the movement of this section relative to the upper door section, by coming in contact ,with the lower'edge of the latter.

Continued upward movement of the chains will cause the lower edge of the lower door section to move upwardly, guided by the rollers 31 in thetrack orguides 15, but this. continued upward movement of the lower edge of the lower door section will carry the lower edge of the upper door section with it. The other parts of both door sections, however, will swing inwardly, as permitted by the

links

21, 22. This movement may be continued until the door sections reach a horizontal position, or as far as desired. v

In closing the door, the rotation of the shaft 11 in the opposite direction will permit the rollers 31 to move downwardly in the guides 15 and this will cause the links to swing back into their initial position until the upper door section comes in contact with the door posts 14 at which time the guides on the upper door section formed by the channels 24: will be in alineinent with the guides 15 below said door section, whereby the lower door section may now be lowered until the door opening is completely closed. c

To obtain a proper balance of doors of this type for the part of the operation during which the'links and door sections swing, the length of the links and the distance of their connections with the upper door section from the door posts, must be taken into consideratlon as well as the weights of the door sectlons. Heretofore-it has been necessar to make a wei ht dia ram for each iny e: b

horizontal position of their connections with stallation to determine the distance of the lower link pins from the door posts and to determine the center of gravity of the door sections in all of their positions. By this tedious process a distance may be found which with a given counterweight will cause the door sections to stand in any of their operative positions;

With this distance established the determination of the lengthof the links and the also possible to carry doors in stock ready for quick delivery. Such links varyin some instances as much as three feet in length.

The distance of the lower link pins from the door posts also has to be changed on the field in many cases and so provision is made according to this invention for making this distance adjustable.

In Figsfl and 2, the links are shown as made of two parts 21 and 2-2 with holes 25 drilled in them, by which they may be connected by bolts or rivets 26 after the distance between their pivoted ends has been determined, or temporarily in difierent positions for the purpose of experimentally finding the desired length.

The link plate 28 is bolted to the edges of the upper door section as at '27. The link 7,

pin 10 projects from a flanged member 41 which. is slidable within a larger circle 42 in plate 23. Its position therein may be adjusted radially in every direction by means of set screws 43.

Itmay be seen that with these expedients 7 both the length. of the links and the distance of the lower link pins from the door posts is made adjustable. 1

Another way of makingthe links adjustable in length is shown in Fig. '3'in which the part 22 telescopes into the part 21 and is held against longitudinal movement therein by set screws 28.

Another way of constructlng' the links so j that they will be adjustable in "length is shown in Fig. 4, in which the parts21 and 22 are provided near their adjacent ends with right and left hand screw threads which fit into a rotatable adjuster 29. This I arrangement provides for comparatively short adjustments.

The device shown in Fig. 5 is a .turn buckle comprising right and left hand threaded eye-

bolts

50 and 51 fitted into a shackle 52. An arrangement of this kind can be used with chain links or other forms of suspension links which are always under tension, as is the case in some of the doors of this type.

The link pin late shown in Fig. 7 is designated by the numeral 45. 46 is the pin which projects therefrom. i Thisplate is afiixed to the edge of the door by a bolt 47 about which it canswing to vary the distance of P 46 fF0111 the door post and after the proper distance has been determinedit can be aflixed to the door section by another bolt through a hole 48 in the plate 45.

trically from a circular member 5 6 rotatably supported in a plate 57 affixed to the door section 20 by bolts 58. A set screw 59 is In Fig. 8 the link pin 55 projects eccen- 1 provided which passes through a threaded aperture in the plate 57 into engagement with the member 56 in order to hold it It is not necessary that the doors stand vertically when closed or that the lower edges of the door sections move vertically. These edges have an up and down movement, how- 7 ever, and the section or sections-are counterbalanced in some way either by the counterweight shown or an equivalent device.

What I claim is: 1

1. The combination with adoor section, a counterbalance therefor, a hoisting element operatively connected between the lower edge of the door and the counterbalance, and means for guiding the lower edge ofthe door section in a direction other than horizontal, of adjustable links pivoted to points above the door section and to the sides of the door section intermediate the upper and lower edges thereof, and means for adjusting the length of said links.-

2. The combination with a door section, a counterbalance therefor, a hoisting element operatively connected between the lower edge of the door and the counterbalance, and means for guiding the lower edge of the door section in a direction other than horizontal, of adjustable link supports above the door section, and adjustable linkshung from said supports and pivoted to the sides of the door section intermediate the upper and lower edges thereof.

3. The combination with a door section, a counterbalance therefor, a hoisting element operatively connected between the lower edge of the door and the counterbalance, and means for guiding the lower edge of the door section in a direction other than horizontal, of adjustable pivots on the sides of the door section intermediate the upper and lower edges thereof, and links pivoted to points above the door section and connected with said adjustable pivots.

4. The combination with a door section, a counterbalance therefor, a hoisting element operatively connected between the lower edge of the door and the counterbalance, and means for guiding the lower edge of the door section in a direction other than horizontal, of adjustable pivots on the sides of the door section intermediate the upper and lower edges thereof, and adjustable links pivoted to points above the door section and connected with said adjust-able pivots.

5. The combination with a door section, a counterbalance therefor, a hoisting element operatively connected between the lower edge of the door and the counterbalance, and means for guiding the lower edge of the door section in a direction other than horizontal, of adjustable link supports above.

the door section, adjustable pivots on the ,sides. of the door section intermediateltheupper and lowerv edges thereof, and adjustable links between the link-supports and said pivots.

' The combination with door comprising'an upper section and a lower section, a counterbalance therefor, a hoisting element operatively connected between the lower door section and the counterbalance, means for guiding the lower door section ina direction other thanhorizontal, means for guid ing the lower door section upwardly in relation-tothe upper door section, and meansfor limiting the relative movement of the door sections and thereafter causing parts of both sections to move upwardly together, of adjustable links pivoted to points above the door sections-andto the sides-of the upper door section intermediate its upper and lower edges.

I 7 The combination with a door comprising an upper section and a lower'sectioma counterbalance therefor, a hoisting element operatively connected between the lower door section and the counterbalance, means for guiding the lower door section in a directionv other than horizontal, means for guiding the lower door section upwardly in relation to the upper door section, and means for limiting the relative movement of the door sections and thereafter causing parts of both sections to move upwardly together, of adjustable link supports above the door' sections, and adjustable linkshung from said supports and pivoted to the sides of the upper door section intermediate'the upper and lower edges thereof.

8. The combination with a door comprising an upper section and a lower section, a counterbalance therefor, a hoisting element operatively connected between the lower door section and the counterbalance, means for guiding the lower door section in a direction other than horizontahmeans for guiding the lower door section upwardly in relation to the upper door section, and means for limiting the relative movement ofthe door sections and thereafter causing parts of both sections to'move upwardly together, of adjustable pivots on the sides of the upper door section intermediate the upper and lower edges thereof, and links pivoted to points above the door sections and connected with said adjustable pivots.

V 9. The combination with a door'comprising an upper section and a lower section, a

counterbalance therefor, a hoisting element operatively connected between the lower door section and the counterbalance, means for guiding the lower door section in a direction other than horizontal, means for guiding he l wer oo section upwardly in relation to the upper door section, and means door sections and thereafter causing parts'of both sections to move upwardly together,

of adjustable pivots on the sides of the upper door section intermediate the upper' and lower edges thereof, and adjustable links pivoted to points above the door sections and connected with said adjustable pivots.

10. The combination with a door comprising an upper section and a lower section, a

counterbalance therefor, a hoisting element my hand this 30th day of A ril, 1920. V

operatively connected between the lower ;door section and the counterbalance, means for guiding the lower door section in a direction other than horizontal, means for guidof adjustable link supports above the door sections, adjustable pivots on the sides of the upper door section intermediate the upper and lower edges thereof, and adjustable links between the linksupports and said pivots.

In witness whereof, I have hereunto 'set "JOHN EDWA D OGDEN. Witness: v I

I. B. Moon r