US952912A - Rotatable gate or door. - Google Patents

Description

F. 0. KULLANDEE. ROTATABLE GATE 0a DOOR.

, v APPLICATION FILED JULY 20, 1909. 952,9 1 Patented Mar. 22, 1910.

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F. 0. KULLANDER.

ROTATABLE GATE 0R noon.

APPLICATION FILED JULY 20, 1909.

9 5% g 1 a Patented Mar. 22, 1910.

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MM. glmkfl ROTATABLE GATE 0R DOOR.

APPLICATION FILED JULY 20, 1.909.

KULLANDER-.

PatentedMan'22, 1910.

4 SHEETSSHEET 4.

ANDREW a GRAHAM covv ounvuznamsmumcu, u c

FRANK O. KULLANDER, 0F KENSINGTON, MINNESOTA.

ROTATABLE GATE OR DOOR.

To all whom 175 may concern.-

Be it known that I, FRANK O. KULLAN- nun, citizen of the United States, residing at Kensington, in the county of Douglas and State of Minnesota, have invented certain new and useful Improvements in Rotatable Gates or Doors, of which the following is a specification.

-My invention relates to that class of entrance barriers which have the form of turnstiles and are rotatable to permit the exit of persons from one side of the pivotal point of the turnstile and prevent their passage through the opposite side.

The object of the invention is to provide a door or turnstile of this character with means whereby the door may be prevented from rotating in the opposite direction to the proper 011e, providing a particularly effective means for supporting the barrier bars upon the central rotatable post, so that the parts shall be very strongly bound together and interlocked with each other, and particularly to provide means whereby the spaces between the barrier bars shall normally be closed so as to prevent the entrance of air into the car, house, or other structure in which the door or gate is used, a further object being to provide, in connection with those valves, as they may be termed, means whereby the valves may be opened to any degree required to permit of a proper ventilation of the car, or other structure, during warm weather or when it is otherwise required.

A still further object is to provide a door or gate of this character with an upper portion of glass, which upper portion may be detached from the lower portion or sec tion containing the barrier bars, so that in summer the upper portion of the gate or door may be removed entirely to afford the least possible obstruction to the passage of the air.

For a full understanding of the invention and the merits thereof, and to acquire a knowledge of the details of construction, reference is to be had to the following description and accompanying drawing, in which:

Figure l is a side elevation of the simplest form of my gate; Fig. 2 is a fragmentary perspective view, enlarged, of a section of the post and of the barrier bars engaged therewith; Fig. 3 is a horizontal section on the line 3-3 of Fig. 1; Fig. 4 is a like sec- Specification of Letters Patent.

App1ication filed July 20, 1909.

Patented Mar. 22, 1910. Serial No. 508,613

tion on the line 4% of Fig. 1; Fig. 5 is a plan view of the means for preventing a reverse movement of the barrier; Fig. 6 is a perspective view showing the preferred form of my door or barrier; Fig. 7 is an enlarged perspective detail of the central post, barrier bars, and the valves connected thereto; Figs. 8 and 9 are fragmentary ver tical sections through the barrier bars showing the different positions of the valves; and, Fig. 10 is a fragmentary vertical section through the barrier bars, showing the means whereby the valves may be adjusted.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

In the drawings, I have shown two forms of my invention; one a simple gate structure, and the other the door or gate structure with the self-closing valves attached thereto.

Referring particularly to Figs. 1 to 4, 2 designates a base of any desired character, and 3 a cross bar, roof, or other superstruc ture between which and the base the door is pivoted. 4: designates the incasing plates on either side of the doorway, these plates having a circular form in section and being opposed to each other and forming the walls of the passageway within which the gate rotates.

Where my device is to be used as a gate simply, of course, the casing plates may be omitted, the fence wall or other structure through which the entrance is to be effected abutting upon or forming part of the circumference of the circle described by the exterior ends of the barrier arms. Mounted between the base 2 and the roof 3 is the ro tatable post 5. The upper or lower end of this post, preferably the upper end, is reduced as at 6, so as to form a bearing rotating within the roof or cross bar. Mounted upon this hearing is the ratchet wheel 7. Pivoted adjacent to the ratchet wheel is a pawl 8 which engages with the ratchet teeth on wheel 7 and is pressed into engagement by the spring 9.

As a preferable construction, I attach to the upper face of the cross bar or roof 8 a casting 10 having a central hub through which the reduced end of the post 5 passes, this casting being provided with upwardly projecting pins carrying the pawl 8 and spring 9. While I have shown this as applied to the upper end of the post 5, I wish it understood that the casting might be mounted upon the floor or base, with the same result.

The rotatable post 5 notched on its side edges as at 5 and 5 for the reception of the barrier bars 11 and 11 The two notches for each set of barrier bars are located immediately adjacent to each other and extend in opposite directions at right angles to each other. The barrier bars'll" are cut away at the middle of their lower faces, as at 12, such cut-away portion having the same length as the Width of the square post 10, so that the shoulders at the ends of the cut-away portion clamp the bars 11 in position against the post. The bars 11 are also cut away on their upper faces and hold the bars 11 in place. Thus, the two series of bars at right angles to each other form an interlocked construction, one securely holding the other in proper position relative to the post 5 and preventing any slipping of the bars. In addition, transverse bolts 13 pass through each of the bars 11 and 11 and hold them into rigid engagement with the post 5. The lowermost barrier bars 1 1 are attached to and project from the four sides of the post 5 and are held into rigid relation with each other by the angle irons 15. These angle irons fit against the outside faces of the barrier bars 1 1, and the bases of the angle irons fit against the adjacent rightangularly arranged bar 14:, all as shown in Fig. 4. Screws or bolts 15 pass through the base flange of one angle iron, through the bar 14, and into the main portion of the other angle iron. Screws 16 also pass through the main portions of these angle irons and into the post itself. It will be seen that this forms a very rigid construction, securely holding the base barrier bars 141 in position. There is particular necessity for the rigid mounting of these lowest bars, as they are most liable to be struck by the feet of those passing through the gate. There is an additional reason for their strong mounting, in that they cannot sag or become deflected in any manner as they come into contact with the base of the structure, and prevent the easy operation of the door.

There are two pairs of barrier bars 11 and 11 arranged at right angles to each other, as before remarked. The barrier bars forming each pair of bars are spaced from each other by the central post and by spacing blocks 17 at each end of the barrier bars. One end of each of these bars is reduced to form a handle 18, this handle being sufficiently spaced from its adjacent bar that the hand may be inserted between it and the adjacent bar, so that a person passing through the gate or door can support himself without danger of falling, and can also easily push the gate.

Projecting from the wall or partition into is transversely which the gate is inserted (the upright 19 shown in the drawings, being supposed to form the end of said wall or partition) are the projecting fixed bars 20 which are alternately arranged to the bars 11 and 11 so that as the gate is rotated, the bars 11 and 11 will pass the bars 20. The bars 20 extend in. toward but not quite to the rotatable post 5 and act to prevent anyone from passing through the gate in the wrong direction, in a manner usual in turnstiles.

Referring now to Figs. 6 to 9, I have illustrated a door operating on the same general principle the gate above described, but containing certain other features which fit it for use in houses, buildings, cars, or like situations where it is desired to prevent the inlet of air through the spaces between the barrier bars.

The apparatus as a whole is constructed in accordance with the description before given of the gate, the difference between the two, however, is that I provide in the latter case a series of valves or hinged plates which are hingedly supported upon the barrier bars and depend against the barrier bars just beneath, so that under normal circumstances, these flaps or valves will be closed, thus making the rotatable barrier practically a solid construction. The projecting alternately arranged fixed bars, however, are so formed as to provide a means for raising the valve as the rotatable barrier bars move past the fixed barrier bars, the valves falling down into their original position after they have passed.

In detail, 22 designates the base of any suitable structure, 25 the roof or ceiling thereof, and 25 designates the rotating post having a reduced end 26 carrying a ratchet wheel 27 and spring pawl 28.

The barrier bars 31 are formed in pairs extending at right angles to each other, the bars of each pair being reduced near one end to form a handle 32, the bars being spaced apart at their ends by the blocks The post 25 is notched on all four sides, in precisely the same manner the post 5 before described, so that the pairs of barrierbars are interlocked with the post and with each other, as before described. The lowermost sets of barrier bars 3% are held in place by angle irons 36, previously described. The barrier bars 31 extend up only part way along the post 10 for the purpose of supporting a series of window carrying frames above it, as will. be later described.

The unreduced portion of each of the bars 31 is provided with the hinged flap valve 40. This valve is hinged to the under side of this portion of the bar by means of hinges 41. The flap valves have sufficient depth to fill the space between one barrier bar 5 and the next adjacent barrier bar beneath when the flaps are closed. The upper face of the barrier bar is preferably rabbeted or formed with a strip 42 which projects upwardly from the upper face of the bar and a gainstwhich the valve 40 contacts. A strip 43 also projects out from the central post, and the inner end of the valve 40 contacts with this last named strip. It Will be seen then that all these Valves or flaps are adapted to open in one direction, that is, ina direction reverse to the movement of the door, and close against the strips 42 and 43 in the other direction, and that they are normally held closed by the springs 41. The inwardly projecting fixed bars 44 are wedgeshaped in cross section so that as the rotatable barrier bars pass the fixed bars, the beveled face of the latter will act to lift the flap valves sufliciently to permit the flap valves to pass the fixed bars.- As a means of preventing friction and of providing for a very easy operation of the flap valves, I cut away or recess the extremity of the fixed bars 44 and mount therein the antifriction rollers 45. These project slightly above the beveled face of the bars 44 and act when the valves have been initially lifted by the wedge-like edge of the bars to further raise the valves, the end of the valve moving over the friction roller and the valve as a whole not contacting with the whole surface of the bars 44.

While in winter weather or rainy weather it will be desirable to prevent the entrance of air into the car, house, or other structure, through the spaces between the fixed and rotatable barrier bars, yet it may often be desirable to have the valves raised so as to permit the entrance of air, and for this purpose I provide a rod 46, one for each set of valves, to which the valves are pivoted or otherwise connected. In the illustration, this rod 46 is shown as passing through slots .in the valves 40, the valves having a pivot pin passing through the rod 46. The upper end of this rod is provided with a set screw or peg 47, whereby it may be supported in any desired vertical position upon the post Thus, by raising the rod 46 to the limit of its movement, the valves 40 will all be raised and will not contact at all with the fixed bars 44. It will be obvious that the rods may thus be adjusted to any desired degree to give more or less entrance to air. The valves might also be individually arranged to be raised or lowered. Thus, each valve might be provided with a pin 47 which could be inserted in any one of a series of holes formed in the central post, and thus any one of the valves be individually adjusted.

As a further means of permitting ingress of air into the structure, I provide the set of four rectangular frames 50 within Which may be carried plates of glass 51. These are attached to the upper portion of the square post 25 by means of the angle irons 36 previously referred to, these angle irons acting to hold the several frames into rigid relation to each other and to the post. The outer extremities of the frames 50 are connected to the outer extremities of the uppermost barrier bars by means of the connecting plates 52. In hot Weather, these frames with their glass panels may be easily detached by disconnecting the plate 52 and the angle irons 36 and removing the screws 53 which pass through the frames and directly into the central post.

It will be seen that my invention provides a door which is peculiarly applicable to street cars, hotels and other structures wherein an outside rotatable door is likely to let in blasts of cold air, and that my in.- vention forms a rotatable door with all its advantages, to be applied to street car service and in other situations where the ordinary rotatable door is too costly to be used and is not capable of keeping out wind, rain and dust.

Having thus described the invention, what I claim is l. A rotatable barrier including a central vertical post rotatable in one direction, means for preventing the rotation of the postin a reverse direction, and pairs of barrier bars, each pair attached to the post, each pair extending transversely to the next adjacent bar on opposite sides of the post, the said post having a series of notches on opposed sides extending in one direction and a series of notches on opposed sides adjacent to but extending transversely of the first named notches to receive said barrier bars, the said pairs of barrier bars being provided, one pair with a notch on its lower side at its middle and the other with a notch on its upper side at its middle, whereby the barrier bars have interlocking engagement with each other and with the post.

2. A rotatable barrier bar including a central vertical post rotatable in one direction, means for preventing the rotation of the post in a reverse direction, and pairs of parallel barrier bars attached on opposite sides of said post, said post having a series of notches on all four sides to receive said barrier bars, the notches on opposed sides being in alinement with each other, the said pairs of barrier bars being provided, one bar with a notch on its lower side at its middle, and the other with a notch on its upper side at its middle, bolts passing transversely through the pairs of barrier bars and through the post, and spacing blocks located at the extremities of each pair of barrier bars and spacing the same from each other.

3. A rotatable barrier including a central post rotatable in one direction, means for preventing the rotation of the post in the reverse direction, and pairs of barrier bars arranged transverse to each other and projecting on both sides of the central post, the members of each pair of barrier bars being arranged on opposite sides of the post, the opposite ends of each barrier bar of a pair being rounded to form handles whereby the barrier as a whole may be rotated.

t. A rotatable barrier including a central post rotatable in one direction, means for preventing the rotation of the post in a reverse direction, barrier bars extending substantially radially outwardly from the post and attached thereto, a fixed support, fixed barrier bars extending inward from the support, and plates hinged to the rotatable barrier bars and depending therefrom, said plates being adapted to be raised by engagement with the fixed barrier bars as the bar rier is rotated.

5. A rotatable barrier including a central rotatable post, radiating barrier bars attached to the post and rotatable therewith, plates hinged to the barrier bars and depending therefrom, the lower edges of the plates contacting with the barrier bars immediately beneath, a framework, and fixed barrier bars extending inwardly from the framework toward said post and adapted to contact with the hinged plates when the barrier is rotated, said fixed barrier bars having a beveled upper face.

(3. A rotatable barrier including a central post rotatable in one direction, barrier bars attached to the post and radiating therefrom, hinged plates hinged to the barrier bars and depending therefrom into contact with the barrier bar next below, springs for l holding said plates in a closed position, a frame, fixed inwardly projecting barrier bars carried by the frame and alternating in position with the rotatable bars, and rollers carried on the fixed bars adapted to contact with the plates to raise the same.

7. A rotatable barrier including av central post rotatable in one direction, means for preventing the rotation of the post in the reverse direction, barrier bars attached to the post and radiating therefrom, plates hinged to the lower faces of the barrier bars and adapted to open in a direction reverse I l t l l i l t l 1 1 i l l i l to the movement of said bars, springs for normally forcing said plates closed, a framework, inwardly projecting barrier bars on the framework alternately arranged with respectto the rotatable bars, said fixed bars being beveled on their upper faces and'being recessed on their outer ends, and rollers carried in said recesses and adapted to contact with the inner ends of said hinged plates.

8. A rotatable barrier including a central vertical postrotatable in one direction, means for preventing the rotation of the post in a reverse direction, pairs of barrier bars attached to and extending across said post, said pairs of bars being spaced from each other and one bar of each of said pairs being reduced to form a handle, plates hinged to the under side of one bar of each pair and depending therefrom into contact with the like bar of the pair beneath, a fixed frame, inwardly projecting barrier bars carried by said frame and alternately arranged with respect to the rotatable barrier bars, said fixed bars being adapted to contact with the movable plates to raise the same as the barrier bars pass, and means for adjustably holding said plate raised to escape the fixed barrier bars.

9. In a device of the character described, a central rotatable post, a series of approximately radial barriers mounted on the post and projecting therefrom, a series of freely swinging valve plates mounted on said barriers, and means whereby the plates may be adjustably supported if desired.

10. A rotatable barrier of the kind described, including a central rotatable post, outwardly projecting barrier bars, plates hinged to the barrier bars and depending therefrom, and a series of inwardly projecting fixed barrier bars alternately arranged with respect to the rotatable barrier bars with which said valve plates contact during a rotation of the barrier.

In testimony whereof I atfix my signature in presence of two witnesses.

FRANK O. KULLANDER. [Ls] Vitnesses A. L. OSTERBERG, R. J. BAsMUssoN.

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