US1256404A - Door-operating means. - Google Patents

Description

1. e. wms. DOOR OPERATING MEANS.

1 APPLICATION -F|LED MAY l7| I916 1,%56,40%. Patented Feb.12, 1918.

3 SHEETS-SHEET 1.

I. G. WAITS.

DOOR OPERATING MEANS.

APPLICATION min MAY 17, l9l6.

s SHEETSSHEET 2.

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Patented Feb.12,1918..

.l. G. WATTS.

DOOR OPERATING MEANS. APPLICATION FILED MAYII. 1916.

1,256,404. Patented Feb. 12,1918. e 3 SHEETS-SHEET 3- JAY GOULD WATTS, OF CBICHTON, LOUISIANA.

DOOR-OPERATING MEANS.

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. Specification of Letters Patent.

Patented Feb. 12, 1918.

Application filed may 17, 1916. Serial No. 98,158.

To all whom it may concern:

Be it known that I, Jar G. WATTS, a citizen of the United States, residing at Crichton, in the county of Red River and State of Louisiana, have invented new and useful Improvements in Door-Operating Means, of which the following is a specification.

This invention relates to a door operating mechanism primarily designed for use in connection with a sliding door or the like.

The invention aims to providea mechanism of the above mentioned character, embodying among other features a platform or the like disposed in close proximit to the door and associated therewith in t e manner, to cause the said door to assume an open (position when the platform is depresse together with means for automatically returning the door and the various parts of the mechanism to normal position, upon release of said platform.

With these and other objects in view which will appear from the following description, as the latter is read in connection with the accompanying drawings, the invention resides in the construction, combination and arrangement of parts as defined in the claims.

In the drawings forming part of this s ecification like numerals of reference indicate similar parts in the several views and wherein I Figure 1 is a front elevation partly in section showing the door in closed position.

Fig. 2 is a similar view showing the door in its open position.

Fig. 3 is a vertical transverse sectional view.

Fig. 4 is a horizontal sectional view.

Fig. 5 is a detail sectional view of the drum.

Fig. 6 is a detail view of the platform.

Before entering into a detail description of what is herein shown, I desire to have it understood that I do not limit myself to this particular construction, and that such changes may be resorted to when desired as fall within the scope of what is claimed. It might further be stated that a door controlled by means of the invention may be used either up or downstairs in a building, and is also susceptible for use as a drive: way ate of the like, but in any instance the doorps automatically controlled in its movements in a manner to be hereinabove described.

Upon reference to the drawin in detail A indicates the floor of a building, and B the wall provided with the usual door open- 1n C. During the construction of the building, or in other words the wall B, a door frame indicated at 10 is built between the partitions of the wall, and includes parallel side members 11 and a connecting top piece 12. The door 13 is supported upon the frame for sliding movement, for which purpose the top piece 12 is rovided with a guideway 14 through whic the upper portion of the door projects, the latter being provided with suitable hangers 15 upon which is journaled a plurality of rollers 16 adapted to rest upon and move from the upper surface of the top piece 12. Of course one of the side members 11 is also slotted to permit of the door being opened, during wh1ch time the latter is moved within the space between the partitions of the wall B. When the door is moved in an opposite direction the jamb thereof engages the opposite member 11 and not only serves to limit the closing movement of the door but also provides a tight joint between the parts. The frame 10 may be constructed to accommodate one or more doors, one of which may be a screen door, the doors being1 arranged one in advance of the other. W en two doors are employed as herein illustrated, the to piece 12 of the frame is of course provi ed with spaced parallel guideways 14:.

: The floor A at a point in close proximity to the door, is provided with an opening 17, which may be of any suitable dimensions, having the edges thereof beveled as at 18. Fitted within this opening and adapted to lie flush with the surface of the floor is a platform, preferably in the nature of an enlarged block 19. Depending fromthe block 19 is a rod 20 slidably fitted in a bearing 21, and having its lower end operatively asso ciated with the adjacent end of a horizontally disposed arm 22 pivoted adjacent the end connected with the rod 20 upon the hearing 21. Dispomd a requisite distance to one side of the rod 20 is a base 23, from which rises spaced parallel standards 24 having journaled therein a horizontally disposed shaft 25. Fixed upon the shaft 25 for rotation therewith is a drum 26, and interposed between the heads 27 thereof is a circumferential series of spaced parallel pins 28 adapted to be engaged by the'teeth 29 of 7 one end of the arm 22, for the purpose of imparting a rotary movement to the drum in one direction when the arm 22 is elevated simultaneously with the depression of the platform 19. While it is herein specifically stated that the drum is provided with pins 28, it may be provided with a toothed surface or otherwise constructed to cooperate with the arcuate shaped member 30 for the purpose mentioned. Secured to theouter side of each of the heads 27 of the drum, is

a pulley 31 over which is trained a continuous cable 32, the latter being secured to the drum. The cable has a portion thereof ex tended transversely above the frame 10, and is trained over a plurality of guide pulleys 33 suitably arranged upon the frame, one lead of the cable being secured to the upper edge of the door so as to move the latter in opposite directions to either opened or closed position, when the drum is rotated in one or the other direction. The cable has its opposite ends connected by suitable detachable fastening means indicated at 34, to permit of the cable being used in connection with either of the pulleys 31 and connected with either one or the other of the doors shown, It is to be understood of course that but one door is operated at a time, and the door not in use is moved to an opened position out of the way. The door is provided with any suitable form of lock or latch mechanism,

preferably key operated, which is mounted upon the frame 10.

In practice, when weight is placed upon the platform 19 thereby depressing thelatter, the arm 22 is moved about its fulcrum elevating the arcuate shaped member 30, which as above stated cotiperates with the drum to partially rotate the latter, and through the medium of the cable 32 the door is slid to an opened position. A suitable weight 35 is secured to one ofthe pulleys adjacent the periphery thereof, thus unbalancing the drum, so that when the pressure or weight is removed from the platform 19, the movement of the drum is automatically reversed through the medium of the weight 34, and the weight of the arm 22, whereupon the drum, arm 22, and platform 19 return to their normal position. During this movement of the parts a pull on the cable is exerted in an opposite direction from that exerted during the opening of the door, thereby sliding the door in the reverse direction to its closed position. The base 23 is provided with a recess or pocket 36 adapted to receive the lower end of the arcuate shaped member 30. and this pocket is filled with sand or other suitable material to eliminate noise which would otherwise result from the drop of the arcuate shaped member 30 to normal position. lit will be manifest that by reason of this construction naaaeoa opening in the floor A, which serves to limit the return movement of the block 19, and also provides for a proper fit'between these parts. The block also has one of its sides inclined as at 38 to provide a clearance for the movement of the arm 22, as well as to permit the rod 20 to be arranged as far as possible toward the adjacent end of the arm 22, with the saving of space, and also allowing the arm to have a maximum degree of leverage to operate the door with a very slight depression of the platform 19, It might here be stated that in constructing the wall B means should be provided to permit the doors to be quickly and easily removed or positioned in place as the occasion mayrequire.

It is believed that from the foregoin description the nature and advantages 0% the invention will be readily apparent without requiring a'more extended explanation and therefore the same has been omitted.

What is claimed is y 1. A door operating means comprising in combination with a sliding door, a. drum mounted for rotation, a cable connected with the door and trained over the drum for opening the door upon rotation of the drum in one direction and closing the door'upon reverse rotation of said drum, a movable member normally lying flush with the surface and adapted to be depressed when Weight is brought to bear thereon, a horizontally disposed rod pivoted beneath said member for vertical swinging movement,

combination with a sliding door, a drummounted for rotation, a cable connected with the door and trained over the drum whereby said door is opened upon rotation of the drum in one direction and closed upon reverse rotation of said drum, a movable member operating through an opening in the floor or surface and adapted to be depressed when weight is brought to bear thereon, a horizontally disposed pivot rod arranged beneath the member and connected therewith to be moved about its pivot when said member is depressed, a plurality of spaced transverse pins forming part of said drum, an

arcuate shaped rack bar carried by one end of the rod and cooperatin with said pins to rotate the drum when t 0 member is depressed in a direction to open the door, a

Weight carried by the drum for reversing the movement of the latter and returning 10 the same and the aforementioned parts to In testimony whereof I afl x my signature 15 in presence of two witnesses.

JAY GOULD WATTS. Witnesses R. L. RHons, W. R. Powrms.

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