US2263685A - Display device - Google Patents

Description

Nov. .25, 1941. L. w. SE. Em 2,263,685

DISPLAY DEVICE.

Filed Dec. .4, 1959 w fzz/eim; fwb'szaaz mm/Z 0X60 Patented Nov. 25, 1941 Lewis W. SeiLiChicago, andtwald emar Olson, Brookfiel d, Ill.,- .as igno rs to Reynolds-Electric nois Companyighicaglq, 111., a corporation oflllilppnammeaba 4, 1939, Serial No. 302,486 5 claims. (01. 60 -62) Tlie iinverition relates to improvements L display devices especially adaptd for use in co'r'ijunction with fans; the primary ob'ject of the invention being the provision of an improved construction ofthe character indicatedwhich is capable of economical production and highly elfig cientinuse. Q

"Another object of the invention isthe provision of an improved construction of the character indicated, so constructed and arranged as to operate at substantially constant speed, notwithstanding'variations in the speed of the operating 'Other objects will appear hereinafter.

The inventionconsists of the combinations and arrangements of parts hereinafter described and claimed I 'The invention willbe best understood by ref erence to the accompanying drawing forming a part of this specification and in which:

Fig. 1 is a top plan view ofa display device embodying the invention; i J

Fig. 2 a side view thereof;

Fig. 3 an enlarged section taken on line 33 of Fig.1; 1 4

Fig. 4Ian enlarged sectiontaken substantially on line 4-4 of Fig. 2;

Fig. 5 an enlarged section taken substantially on line 5--5 of Fig. 2;

Fig. 6 a perspective view illustrating a modified form of construction embodying the invention.

The embodiment of the invention illustrated in Figs. 1, 2, 3, 4 and 5, comprises a suitable post or pedestal l having a supporting fork I l at its top, adjustably supporting a fan motor l2, which in turn supports a fan l3 as indicated. The guard l4 of usual form is arranged around the fan l3 and is provided at its top with a center plate l supporting a vertical stud l6 having a ball-like head H on which a ball-bearing I8 is mounted to provide for free rocking movement in any direction and rotating thereon. A center plate of a display frame is secured to the ball-bearing I8, as best shown in Fig. 3, so as to be free to rock and rotate freely on the axis of the ball-bearing. Radiating frame bars 2| are secured as shown to the center plate 20 and project outwardly and curve downwardly over and around the fan guard M as shown. An annular channel member 22 is secured as indicated to the lower ends of the arms 2| and depending arms 23 are secured to the channel member 22. Tension springs 24 are secured as shown to the lower ends of the arms 23 and yieldingly support lugs 25 on another annular channel member 26 as indicated. By this substantially arrangement a 'dis'playframe is provided which isfree' to rotate horizontally about the fan l3 and is also free to adjust itself into level position in case the supporting post I0 is slightly out of vertical'position'. When desired,the channel member '26 may be'moved downwardly against the resistance of 'thesprings 24 to permit of the insertion of advertising cards or other display material in the channels of the members 22 and 26. When released the channel member 26 will be drawn upwardly by the springs 24 to clamp the inserted matter securely between said channels,

as will be readily understood. 7

A supporting bracket 21 is arranged as shown on the centerplate 20 of the'display frame and anbp'erating arm 28 is provided at its inner end with a coil 29 constituting a pivot sleeve," which, in turn,is pivotally mounted on a stud screw 30 projecting laterallyfrom the bracket 21. At its inner end the operating arm 28 is provided with an angular stop finger 3| arranged to contact with the plate 20 to limit the upward swing of the arm 28, as will be readily understood. A propulsion vane 32 is provided with a spring clamping bracket 33, the sides of which are perforated, as indicated, to permit the free passage of the rod 28 and whereby the vane 32 is rendered longitudinally and angularly adjustable on the rod 28, as will be readily understood. By this arrangement when the fan I3 is operated by the motor l2 to project an upward blast of air through the display frame and against the vane 32, a propulsive effect will be exerted on the vane 32 if the said vane is adjusted to a proper angle with reference to the direction of said blast as indicated in Fig. 2. The upward blast from the fan will also exert an upward thrust on the arm 28, tending to swing the same upwardly, depending upon the intensity of the blast and the angle at which the vane 32 is positioned. Obviously, as the arm 28 thus swings upwardly it alters the angular relation of the vane 32 to the blast and also moves said vane closer to the vertical rotation axis of the display frame so as to lessen the propulsive effect on the vane due to the increase in the intensity of the air blast. Obviously, by properly adjusting the vane 32 on the rod 28 the effect due to any increase in the intensity of the blast may be substantially nullified so that the rotation of the display frame will be held automatically substantially constant notwithstanding variations in speed of the fan 30. Thus a variable speed fan may be employed without materially varying the speed of rotation of the display frame. In this way an attractive and effective rotate on a vertical axis; a fan mounted on said support and arranged to project a blast of air upwardly through said frame; a propulsion vane so mounted on said frame as to cause rotation thereof by said blast; and means also operable by said blast for automatically regulating the effect of said blast to maintain the same substantially constant.

2. A device of the class described comprising a support; a frame mounted on said support to rotate on a vertical axis; a fan mounted on said as that already disclosed. By this arrangement the air blast from the fan l3 will impart a sub stantially constant propulsive effect-or thrust to the vane 34, tending to rotate the display frame support and arranged to project a blast of air arm mounted on said frame to swing upwardly;

in one direction. At the same time a propulsive effect will be imparted to the other vane 36,

which will either assist or oppose the effect of vane 34. When the vane 36 is hanging at a downward angle, as indicated by dotted lines in Fig. 6, the propulsive effect thereof will be such as to assist that of the vane 34. However, when the intensity of the air blast is such as to swing the vane 35 upwardly into the full line position indicated in Fig. 6, the effect of the vane 36 will be to resist that of the vane 34, so that the re sultant total propulsive effect of the air blast will remain substantially constant. By this arrangement and by radially adjusting the vanes 34 and 36 on their supporting bars, the speed of rota,

tion of the display frame may be again rendered substantially constant, notwithstanding variations of the speed of the fan and the intensity of the air blast.

While we have illustrated and described the preferred forms of construction for carrying the invention into effect, these are capable of variation and modification without departing from the spirit of the invention. We therefore do not wish to be limited to th precise details disclosed,

but desire to avail ourselves of such variations and modifications as fall within the scope. of the appended claims.

We claim:

l. A device of the class described comprising a support; a frame mounted on said support to and a propulsion vane on said arm.

3. A device of the class described comprising a support; a frame mounted on said support to rotate on a vertical axis; a fan mounted on said support and arranged to project a blast of air upwardly through said frame; an operating arm mountedon said frame to swing upwardly; and a propulsion vane angularly and longitudinally adjustable on said arm.

4. A device of the class described comprising a support; a frame mounted on said support to rotate on a vertical axis; a fan mounted on said support and arranged to project a blast of air upwardly through said frame; a propulsion vane mounted on said frame at a definite angle to the direction of said blast; and another vane hinged to said frame to be swung automatically byincrease in intensity of said blast to diminish the propulsive effect of said first mentioned vane.

5. A device of the class described comprising a support; a frame mounted on said support to rotateon a vertical axis; a fan mounted on said support and arranged to project a blast of air upwardly through said frame; a radially adjustable propulsion vane mounted on said frame at a definite angle to the direction of said blast; and another radially adjustable vane hinged to said frame to be swung automatically by increase in intensity of said blast to diminish the propulsive effect of said first mentioned vane.

LEWIS W. SEIL. WALDEMAR. N. OLSON.

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