US3363871A

US3363871A - Mount for chalkboard and the like

Info

Publication number: US3363871A
Application number: US499156A
Authority: US
Inventors: Walter G Slazik; Ladislaus J Kostrzewski
Original assignee: Individual
Current assignee: Individual
Priority date: 1965-10-21
Filing date: 1965-10-21
Publication date: 1968-01-16
Anticipated expiration: 1985-01-16

Description

Jan.l6, 1968 w, SLAZ|K ET AL 3,363,871

MOUNT FOR CHALKBOARD AND THE LIKE Filed Oct. 21, 1965 2 Sheets-$heet 1.

INVENTORS WALTER G .SLAZ'IK- LADISLAUS J.KOSTRZEWSKI;

H, ATTORNEY Jan. 16, 1968 'w. e. SLAZIK ET L 3,

MOUNT FOP. CHALKBOARD AND THE LIKE Filed 06.1,. 21, 1965 F IG. 6

FIG. 7

IN VE'NTORS WALTER G SLAZIK- LADIS LAUS .T. HOSTRZEWSH l.

FIG. 9

United States Patent 3,363,871 MOUNT FOR CHALKBOARD AND THE LIKE Walter G. Slazik, 1002 W. High Terrace, Westvale, NJ]. 13219, and Ladislaus J. Kostrzewski, 126 Hopkins Road, Williamsville, N.Y. 14221 Filed Oct. 21, 1965, Ser. No. 499,156 6 Claims. (Cl. 248-451) ABSTRACT OF THE DISCLOSURE Rectangular chalkboard support having an upper and a lower support rail of like channel section configuration, each having a web, a rear flange, and a forward flange of lesser height than the rear flange, a key slot in each web on the opposite side from said flanges, brackets for mounting the rails in parallel channel facing relation, and secured to said rails by bolts, the heads of which are disposed in the key slots of said rails, a spacer for partially filling the channel of the lower support rail to support the lower edge of the panel board in spaced relation between the web, and the upper edge of the forward flange, the board being of a vertical width approximately the spaced between opposed rail webs less the height of a front flange, the forward flanges of the rails have a forwardly extending hook like portion facing oppositely to the channel for securing a tray having an upstanding flange projecting in the hook like portion of the lower tray, and a reanwardly extending flange secured to the underside of said rail to said key slot, and a trim strip attachable in a like manner to the upper rail.

This invention relates to chalkboards, display boards and the like, and more particularly to a mounting structure for such boards when in rectangular unframed sections.

It has been the usual practice in regard to the supply of chalk boards, cork boards and the like for use in educational institutions and the like, to provide such boards in accordance with specifications as to size, the board and mounting material being prepared at a factory and shipped ready for mounting at the designation. Such practice results in delays, unwarranted expense, and the structure thus applied, is incapable of ready variation, in accordance with future changes in requirements.

The present invention is directed to a system and assembly of support material for panels in the form of chalk boards, peg boards, flannel boards, projection screens, easels and the like, which is flexible, and can be assembled on the spot from a minimum number of parts to fulfill specifications and requirements without delay incident to the preparation of parts according to a specification at a distant factory or supply center.

More particularly the invention has to do with a novel support rail which may be supplied in standard lengths, and out to meet on the spot, and used for supporting both the upper and lower edges of a series of panels, of the type referred to, without the necessity of prefabrication according to specifications away from the job.

Furthermore, the invention has to do with the structure of such rails in a specific channel like form by extrusion, and the adaptability thereof to interfit with other members, to provide a Wide variety oi? panel support combinations adapted for assembly Where installation is being efiected.

The above and other novel features of the invention will appear more fully hereinafter from the following detailed description when taken in conjunction with the accompanying drawings. It is expressly understood that the drawings are employed for purposes of illustration only and are not designed as a definition of the limits of the invention, reference being had for this purpose to the appended claims.

In the drawings, wherein like reference characters indicate like parts:

FIGURE 1 is an elevational view showing a section of chalkboard supported on a pair of wall standards;

FIGURE 2 is a sectional view taken through a stand ard and substantially on the line 2- 2 of FIGURE 1;

FIGURE 3 are perspective views of upper and lower support brackets;

FIGURE 4 is a sectional view showing an application of a second sliding chalkboard;

FIGURE 5 is a perspective exploded view to illustrate the method of joining rails;

FIGURE 6 is a sectional view showing an application of a tack board to the rail;

FIGURE 7 is a sectional view showing a map rail for application to the tack board of FIGURE 2;

FIGURE 8 is a sectional view showing a lower rail extension for providing a roller track for a second chalkboard; and

FIGURE 9 is a sectional View showing a further method of applying a tack board.

Referring to FIGURES 1 and 2, there is shown spaced

channel section standards

20, 20, usually located on four foot centers and secured to the wall by screws 22. Each of these rails have two rows of equally

spaced slots

24 and 26 extending along their length, for receiving mounting brackets. The channels of the standards may be 1 /4 wide, with /2 flanges, and the two rows of slots spaced /8". The slots of each row may be about long, with one slot to each inch. The standards may extend from floor to ceiling, or be of lesser length. To the standards are attached, upper and lower brackets 30 and 32 (see FIG. 3) each of which comprises a plate portion 34 with

integral hooks

36 and 38, having inclined slots 40, the hooks being on a one inch spacing and adapted to lock into any two adjacent slots of either row in the channel member. Integral with the plate portion is a flange 42.

The upper bracket 30 is provided with an angle member having a vertical portion 43, and a lateral projection 44 provided with an aperture 46, and the lower bracket is reversely provided with an angle member having a vertical portion 48 and a lateral projection 50 and aperture 52. The angle members may be welded or otherwise secured to the flanges 42. The lateral spacing of the apertures 46 and 52 of the upper and

lower angle members

30 and 32 from the flanges 42 of the brackets are identical and adapted to align with the center line of the back of a support rail 60 in the form of an extrusion, which are attached to and supported by the upper and lower brackets 39 and 32.

The support rail extiusion 60 is of channel configuration, having one flange 62 wider than the other flange 64. The flange 62 has an internal lip 66, rounded as at 68, and the other flange 64 has an outwardly extending hook section 7t The spacing between the lip 66, and the inside face of the flange 64 may approximate 1 inches.

On the backside of the Web 72, and cent-rally thereof is a rectangular block C slot or keyway 74, for receiving the flat heads 76 of bolts 78. The width of the web 72 is double the lateral spacing of the apertures 46 and 52 of the brackets 3d and 32 from the flanges 42 thereof.

The extrusions oil may be formed in any suitable length and one or more sections joined end for end, or a single section cut to the overall length to be used, as desired. Two sections may be joined in butt relation through the use of tie plates it having two or more set screws 82. Such tie plates are of a Width corresponding closely to the width of the key slot, and of a thickness somewhat less than the depth of the key slot, and of a length such that with one half of the tie plate projected into the key {9 slot of one extrusion, and the other half projected into the key slot of an abutting extrusion, a rigid connection is afforded, upon tightening the set screws 82 so as to bear against the web wall of the key slot, to cause the tie plate ends to bear against the lips 86 of the key slots.

The extruded support rail 60 serves either as an upper rail, or a lower rail, by mere inversion as will appear in FIGURE 2. The upper and lower rails are secured to

brackets

30 and 32 respectively by bolts '78. By suitably spacing the upper and lower rails so that the bottoms 91 of their respective facing channels are spaced a distance equal to the vertical dimension of a rectangular panel 92, plus the depth of the flange 64, a panel, for example a chalk board, can be inserted upwardly into the upper channel to its full depth, and swung into alignment with the lower channel, and by providing a filler member 96, of about half the depth of the flange 64, the board drops so as to rest centered between, and spaced from the bottoms 91 of both upper and lower channel rails 60.

A chalk tray 1%, in the form of an extrusion, having a tray portion 1&2, an upstanding rib 1M and rearwardly extending attachment flange 1136, is adapted to interengage in the slot 108 formed by the hook 70 of the channel extrusion 60, and be attached to the underside of the bracket arms 50, by the same bolts 78. Additional bolts may be provided to support the tray inbetween standards, by employing spacers (not shown) of the thickness of the bracket arms 50. To the top rail 64}, may be applied an angle section extrusion 110, adapted to extend into the slot 108 of the extrusion, and fit over a portion of the bracket arms 44. The lateral flange 112 of the extrusion 110 may have semi-circular slots 114 disposed at one inch intervals to partially embrace the bolts 78, and such other bolts as may be applied inbetween spaced standards. The depending portion of the extrusion 11% may have threaded apertures at spaced intervals to receive screws 119, to hold a hat-shaped section extrusion 120 to the assembly, the channel portion of which is provided with a cork insert 122 to receive thumb tacks.

If a wider thumb tack strip be desired, an extrusion as shown in FIGURE 6 or FIGURE 9 may be provided. In FIGURE 6, the extrusion 130 has a lip 132 adapted to lock into groove 108 and a shoulder hook 134 adapted to seat over the web of the channel member 60. The extrusion may be secured in place by a channel sectioned key member 136, also secured by the bolts 78. Such extrusion may be provided with a cork board insert 138. In FIGURE 9, the extrusion 140 has a narrower channel 142 to receive the cork insert 144, a lip 146 to engage the groove 108 of the member 60. Additionally the member has an upwardly extending flange 148 with a shallow groove 150 forming a bead 152, and the member 140 is held in place by extruded C section members 154, suitable lengths of which are snapped in place in the manner illustrated. The members 154 may be of such length as to be applied in the spaces between standards 211 and bolts 78.

If it be desired to provide a second trackway for a panel 182, forward of the panel 92, an upper extension member 170, in the form of an angle extrusion may be provided, the lateral portion of which may be recessed at four foot intervals as at 171 to clear the bracket arms 44, but provided with suitable apertures for aflixing to the channel members 60 by bolts at such intervals as desired. If a rolling panel is desired, an upstanding rail 176 on the chalk tray may be provided, to engage rollers 178 disposed in a deep groove 180 in the underside of the rolling board 182. It will be seen that the panel 182 is insertable or removable from the assembly by lifting the panel into the space 173 formed by the extension 170 and swinging the lower end of the panel into alignment with or out of alignment with the lower groove, in substantially the same manner as described in connection with panel 92.

2 or 4 may be applied.

It will be seen from the foregoing, that by supplying standards, brackets and channels of the sectional configuration described, the requirements of any specific schoolroom or the like can be satisfied, expanded, contracted, and altered at will to suit the actual need at any given time. The channels may be moved up or down to provide the desired height, and the resulting assembly has both rigidity and flexibility as well as good appearance. Any combination of chalkboard sections, or other sections may be instantaneously placed in position or removed as desired.

While a single form of the invention with variations has been illustrated and described, it is to be understood that the invention is not limited thereto. As various changes in the construction and arrangement may be made without departing from the spirit of the invention, as will be apparent to those skilled in the art, reference will be had to the appended claims for a definition of the limits of the invention.

What is claimed is:

1. A board combination comprising a rectangular board panel, an upper and a lower support rail, each of like channel section configuration, and having a web, a rear flange, and a forward flange of lesser height than the rear flange, a key slot in each web on the opposite side from said flanges, means for mounting said rails in parallel channel facing relation, and secured to said rails by bolts, the heads of which are disposed in key slots of said rails, means for partially filling the channel of the lower support rail to support the lower edge of the panel board in spaced relation between the Web, and the upper edge of the forward flange, and said board being of a vertical width approximately the spacing between opposed ail webs less the height of a front flange.

2. A board combination as set forth in claim 1 wherein each of the forward flanges of said rails have a forwardly extending hook like portion facing oppositely to said channel, a tray member having an upstanding flange projecting in the hook like portion of the lower tray, and a rearwardly extending flange secured to the underside of said rail to said key slot.

3. A board as set forth in claim 2 wherein a right angle section member has a flange seated in the hook like portion of the upper rail, and a rearwardly extending flange overlying the keyslot of the web of said upper rail, and a trim strip aflixed to the seated flange of said angle section member.

4. A board combination as set forth in claim 1 wherein each of said rails have a forwardly extending hook like portion facing oppositely to said channel, and wherein a second upwardly facing channel member is disposed adjacent the lower rail with a flange projecting upward into the hook like portion of said lower rail, and a second laterally extending flange projects beneath the web of said lower rail and is secured thereto, and wherein a right angle sectioned member is provided having a laterally extending flange is disposed over and secured to the web of the upper rail, and having its other flange depending forwardly spaced from the front flange of the upper rail to provide a channel way and a second rectangular panel having its lower edge disposed in the second channel member and its upper edge disposed between the upper rail and the depending flange, and roller means for supporting said second panel in said second channel for lateral movement along said second channel.

5. A board combination comprising a rectangular board panel, an upper and a lower support rail, each of like channel section configuration, means for mounting said rails upon a Wall in parallel channel facing relation, each of said rails comprising a web, a rear flange and a front flange forwardly spaced from and of lesser height than the rear flange, separate spacer means independent of the lower rail lying in the lower channel and of a height approximately one half the height of the front flange for supporting the lower edge of the rectangular panel, said panel being of a height substantially the spacing between the Webs of the oppositely facing channels, less the height of the front flange of one of the channel members.

6. A supportrail for chalkboards and the like comprising a channel member having a Web and spaced side flanges, one of said flanges being Wider than the other References (Zited UNITED STATES PATENTS 2,872,744- 2/1959 Dallen 35-67 X 2,987,832 6/1961 Urbain et a1. 248477 X 3,178,834 4/1965 Dyer et al 35-63 CHANCELLOR E. HARRIS, Primary Examiner. J. F. FOSS, Assistant Examiner.