US1468369A - Screen - Google Patents

Description

Sept. 18,1923. f 31,468,365?

J. T. MOLTRUP SCREEN Filed Sept. 2'7 1921 2 Sheets-Sheet 1 J. T. MOLTRUP fiept. 18, 1923.

S GREEN Filed Sept. 27.

1921 2 Sheets-Sheet 2 IV NTOR r-ilili-lllllllll iiiiliii1111liilllllliiillililmmw wlilil 2 ment is for Patented Sept. 18, 1923.

amen stares JAMES '1. MOL'IRUP, OF BEAVER FALLS, PENNSYLVANIA.

SCREEN.

Application filed September 27, 1921. Serial No. 503,597.

To all whom it may concern:

Be it known that I, JAMES T. MOLTRUP, a citizen of the United States, residing at Beaver Falls, Beaver County, Pennsylvania, have invented a new and useful Improvement in Screens, of which the following is a full, clear, and exact description.

My invention relates to screens and particularly to screens for the display of animated pictures and more particularly to screens of that type which are collapsible for convenience in handling and storage when not in use. M

An object of my invention is such a device which may be folded so as to occupy a small space and which may be easily un-. folded and erected for use.

A further object of my invention is such a device which is simple in construction and efficient in operation.

Further objects will be apparent from the reading of the following description taken in connection with the accompanying drawin forming part hereof and in which:

igure 1 is an elevation of the device as it appears in use;

Figure 2 is a view of the device when fold- Figure 3 shows a view of detail construction; a Figure 4. shows a sectional view of a winding drum igure 5 shows a view partially in section of the arrangement for holding the screen;

Figure 6 is a side elevation of the winding drum and its holding means; and

Figure. 7 is an elevation showing the socket for the mast.

Referring to Figure 1, the device comprises a mast, which may be composed of sections 1 and 2 and may be of any suitable length desired. This mast stands in a socket 3, suitably supported by the floor 4 or otherwise. The socket may take any desired form but as shown comprises a cylindrical member 3 and a floor plate 5 having an opening therein for receiving the mast.

Figure 7 shows the arrangement on an enlarged scale and it .will be noted that the floor plate 5 is provided with a projection 6 extending upwardly therefrom. The member 7 is held on the mast by set screw 8 and has an opening therein for receiving the -up-.

per end of the projection 6. This arrangepreventing the rotation of the mast.

Attached to the mast are side supporting members 9 and 10, the member 9 being pivoted at 11 and the member 10 at 12. Both of the members are pivoted to a member 13 adjustably secured to the mast as best shown in Figure 3. The pivots 11 and 12 are provided with thumb screws 14 and 15, re-

I spectively, for tightening the pivot when member 18. The function of the braces 19 and 20 is to aid in holding the members 9 and 10 in the position shown in Figure 1.

The members 9 and 10 are provided with holders 23 and 24, in which are placed the ends of the roller rod 25 carrying the screen member in the same fashion as the holders of an ordinary window shade. The screen comprises a spring roller rod 25 and a sheet 26 of any desired material. Placed in the upper end of the sheet 26, as shown in Figure 1, is a member 27 shown in dotted lines. This is for the purpose of stiffening the upper edge of the sheet member in the same fashion as the wood strip as used in the ordinary window shade. Attached to the upper end of the sheet 26 and through the member 27, are two eyes 28, to which is fastened a chain 29, or other suitable means. A'ring is placed in the chain 29 and to the ring 30 is attached a cable 31. The cable 31 passes up from the ring 30 over a sheave 32 in the top of the mast and down in the rear of the sheet 26 to the winding drum 33, which is shown in detail in Figures 4 and 6. This drum is provided with a shaft 34 which is extended and bent so as to form a crank handle 35. The drum is fastened to the shaft 34 by a set screw 36.

The flange 37 on one end of the drum 33 "is provided with a notch into which an eccentric 38 may be turned to anchor the drum against rotation. The eccentric member 38 is provided with a flat surface 39, 'as shown in Figure 6, so that when this member is turned 180 from the position shown in Figure 6, the drum is free to rotate.

Referring again to the member 13, it will be noted in Figure 5 that this member is supported by a sleeve 41 surrounding the mast and is provided with a set screw 42 for holding the same in any desired adjusted position. The member 13 is held on the member 41 by a bolt 43 and a set screw 44 is provided for more securely holding the parts in place.

In assembling the device the sections 1 and 2 are attached together and placed in .the socket 3 the opening in the member 7 being placed over the projection 6. The members 9 and 10 which have been pre viously folded into a position parallel with the mast around the pivots 11 and 12, are moved downwardly to a horizontal position, as shown in Figure 1, and the members 19 and 20 are put in the position shown in Figure 1, so as to securely hold the members 9 and 10 in position. The position of the member 13, and therefore the position of the members 9 and 10, may be adjusted by loosening the set screw 42 and placing the member 13 at any desired point on the mast. The roller rod and the sheet are now placed in position in the holders 23 and 24. The cable 31 is attached to the ring 30 and by rotating the drum 33 the cable is wound thereon and the sheet 26 is unrolled from the spring roller rod 25 to the desired height, whereupon the eccentric member 38 is rotated to lock the drum against reverse rotation. When it is desired to dismantle the device, the drum 33 is rotated in a reverse direction to allow the sheet to roll up on the roller rod 25, whereupon the rod, together with the sheet may be removed from the holders 23 and 24, and the cable 31 is disconnected from the ring 30. The members 9 and 10 may then be moved about their pivots 11 and 12 to bring them into paralleled relation with the section 1 of the mast, the members 19 and 20 having been moved into position parallel with the members 9 and 10, respectively. When thus folded, the parts assume the position shown in Figure 2, from which it will be seen that the parts are very compactly arranged so as to occupy minimum space during the time that the device is not in operation.

Many changes and modifications may be made in the various parts without de arting from the spirit of my invention and desire it to be understood that I am not to be limited to the exact arrangement and construction of the details shown.

I claim:

1. In a device of the character described, the combination of a mast, members pivotally supported by said mast, and a sheet roller carriedby said members.

2. In a device of the character described,

' the combination of a mast, sheet-holding members operatively supported by said mast and a sheet roller carried by said holding members, said holding members being mounted whereby they may be folded into a position parallel with said mast.

In a device of the character described, the combination of a mast, a member adjustably mounted thereon, holding members pivotally mounted on said adjustable memher, a spring roller carried by said holding members, and asheet on said spring roller.

4. In a device of the character described,

-the combination of a mast, a member adjustably mounted thereon, holding members pivotally mounted on said adjustable memher, a spring roller carried by said holding members, a sheet on said spring roller, and means for unrolling said sheet from said roller.

. 5. In a device of the character described, the combination of a mast, a member adjustably mounted thereon, holding members pivotally mounted on said adjustable member, a spring roller carried by said holding members, a sheet on said spring roller, means for unrolling said sheet from said roller, and means for holding said last means in any desired position.

6. In a device of the character described, the combination of a mast, a member adjustably mounted thereon, holding members pivoted to said adjustable member and brace members pivoted on said holding members, and adapted to be operatively connected to said mast.

7. In a device of the character described, the combination of a mast, a member carried by said mast, holding members pivoted at one end to said member, holders at the other end of each of said holding members, and a spring roller in said holders, a sheet on said spring roller and means for unwindlng said sheet from said roller and holding the same in any desired position.

8. In a device of the character described, the combination of a mast, a spring roller mounted thereon, a sheet on said roller, a. cable attached to said sheet for unrolling the same from said roller, a drum on which said cable may be wound, and means for holding said drum against reverse rotation.

9. In a device of the character described, the combination of a mast, a spring roller with a sheet thereon mounted on said mast and extending in a direction substantially at right angles to the axis of the mast, means for changing the angular relation of said roller with respect to the axis of the mast, and means for adjusting the position of the roller longitudinally of the mast.

10.. In a device of the character described,

the combination of a mast, a spring roller 3.

roller with respect to the axis of the mast,

\ meaaee and extending in a direction substantially at right angles to the axis of the mast, means for changing the angular relation of said roller with respect to the axis of the mast,

means for adjusting the position of the rollerlongitudinally of the mast, means for unwinding the sheet from the roller, and means for holding the sheet in any desired position.

12. In a device of the character described,

roller the combination of a mast, a spring roller with a sheet thereon mounted on said mast v and extending in a direction substantially at right angles to the axis of the mast, means for changing the angular relation of said roller with respect to the axis of the mast, means for adjusting the position of the roller longitudinally of the mast, means for unwinding the sheet from the roller, means for holding the sheet in any desired position, and means for preventing the rotation of the mast around its axis.

In testimony whereof I have hereunto set my hand.

JAMES 'l. MOLTRUP.

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