Abstract: Sheet metal convenience store shelving utilizes shelf-supporting frame-modules, each of which comprises a prefabricated frame rigidly connectable to a pair of shoes to provide free-standing units. Shelves are supportable on both sides of the frames, and the rear edges of the shelves are notched to receive the frame uprights. Each frame holds a removable backing panel, and additional backing panels extend between adjacent frames, being held in side channels of the frame uprights.The shelves are mounted on the uprights by the engagement of generally horizontally sheet metal shelf tabs with T-shaped slots in the uprights. The tabs extend laterally almost the full interior width of the uprights for optimum strength. As the shelves extend beyond the frame uprights, provision is made to prevent accidental disengagement due to excess weight on an overhanging part of a shelf.

Abstract: In a sheet metal cabinet designed for convenience store use, an L-shaped recessed shelf provides a space for horizontally extending cup dispensers which extend underneath the cabinet and present cups at locations immediately above the recessed shelf. The L-shaped recessed shelf is part of a specialized cabinet front structure which also includes a framework having access doors located underneath the front edge of the recessed shelf. This framework has a U-shaped horizontal cross section, with side panels extending downwardly from the side edges of the shelf and meeting the side panels of the main part of the cabinet.

Abstract: This outdoor telephone booth has translucent side panels which extend substantially the full height of the booth. The side panels, and front and rear header panels as well as the interior of the booth are illuminated through a diffuser by a single source of illumination. The diffuser has a horizontal panel as well as two oblique side panels disposed at 30.degree. with respect to the vertical for substantially uniform illumination of the full-height side panels of the booth. The sloping panels of the diffuser are held down by snap-in retainers, eliminating separate fasteners, and making the diffuser highly resistant to tampering. The illumination assembly depends from a bridge which extends across the upper end of the booth. The bridge is held down by a removable cover.

Abstract: In a mechanical press brake, a photoelectric sensor causes extension of an air cylinder in the linkage between the operating pedal and the clutch lever, thereby disabling the pedal whenever the operator's hand or arm is in dangerous proximity to the machine's ram. The piston of the air cylinder is connected to the pedal through a lost-motion, and the pedal is continuously urged toward its rest position by a spring. The lost-motion and spring prevent repeated extension and retraction of the cylinder from causing dangerous and annoying operation of the pedal during preparation for a forming operation.

Abstract: The vertical walls of a sheet metal cabinet comprise front and back members each having a generally U-shaped horizontal cross-section and side members connected between the U-shaped front and back members. The wall members are connected by interengaging slots and tabs on inwardly extending abutting flanges. One flange of each pair of abutting flanges is provided with a series of slots which serve to support shelves within the cabinet. Gussets located at the corners of the cabinet serve to secure legs to the cabinet and also to prevent disengagement of the wall members by locking the wall members against relative vertical movement. A counter top is secured to inwardly extending flanges at the upper edges of the cabinet walls by clamps which bear downwardly on upwardly facing surfaces secured to and spaced below the counter top. The clamps are secured to the flanges of the wall by screws the shanks of which press upwardly against the underside of the top.

Abstract: The vertical walls of a sheet metal cabinet comprise front and back members each having a generally U-shaped horizontal cross-section and side members connected between the U-shaped front and back members. The wall members are connected by interengaging slots and tabs on inwardly extending abutting flanges. One flange of each pair of abutting flanges is provided with a series of slots which serve to support shelves within the cabinet. Gussets located at the corners of the cabinet serve to secure legs to the cabinet and also to prevent disengagement of the wall members by locking the wall members against relative vertical movement. A counter top is secured to inwardly extending flanges at the upper edges of the cabinet walls by clamps which bear downwardly on upwardly facing surfaces secured to and spaced below the counter top. The clamps are secured to the flanges of the wall by screws the shanks of which press upwardly against the underside of the top.

Abstract: A free-standing shelf support of prefabricated components particularly suited for convenient store or supermarket displays is disclosed. The unit includes two sections each comprising a pair of vertically-disposed uprights mounting therebetween a panel assembly having grooved vertical edges with clips at their upper ends designed to cooperate with slotted tongue protrusions on the uprights to cause the panel assembly to be secured to the uprights simply by being slid downwardly into engagement therewith during assembly. Each upright has a base member which extends laterally from its lower end, and a lower shelf spans across the top of the base members and cooperates with a kickplate extending across the ends of the base members to tie together the lower end of the unit. The uprights are provided with a series of vertically-spaced holes designed to accommodate vertically adjustable shelf supports.