Signal mastarm bracket assembly

Claim 2

A mastarm bracket assembly comprising: an elongated mounting member adapted to supportingly receive a structure for providing a visual display of indicia; track means on said elongated member; track engaging means slidingly engaging said track means for sliding movement longitudinally along said elongated mounting member; means for clamping the track means to the track engaging means to arrest the sliding movement of the track engaging means along the track means at a selected location therealong; movable joint means secured to said track engaging means and projecting from the track engaging means in a direction substantially normal to the longitudinal axis of said elongated mounting member, said joint means including; a first tubular section; and a second tubular section telescopingly engaging the first tubular section for rotation on the first tubular section about an axis extending through, and common to, the first and second tubular sections; means for selectively securing the second tubular section against rotation on the first tubular section at a desired point in the course of one complete rotation about said first tubular section; a clamp plate secured to the end of said second tubular section opposite its end telescopingly engaged with the first tubular section; at least one elongated flexible element having one end secured to said clamp plate; and means for detachably securing the other end of said elongated flexible element to said clamp plate.

Claim 3

A mastarm bracket assembly as defined in claim 1 wherein said clamp plate has one side of dished, arcuate configuration and further is provided with a plurality of spaced, bifurcated ears for securing said flexible element to said plate.

Claim 4

A mastarm bracket assembly as defined in claim 1 wherein said elongated mounting member is of I-shaped cross-sectional configuration and includes a web section having said track means on opposite sides thereof.

Claim 5

A mastarm bracket assembly as defined in claim 1 wherein said elongated mounting member further includes; a facing flange extending normal to said web section along one edge thereof; and a C-shaped edge channel extending along the opposite edge of said web section from said facing flange.

Claim 6

A mastarm bracket assembly as defined in claim 1 wherein said track engaging means is an elongated member of C-shaped cross-sectional configuration having; a base plate bearing against said elongated mounting member; and a pair of Side plates projecting on opposite sides of said elongated mounting member for sliding movement therealong.

Claim 7

A mastarm bracket assembly as defined in claim 2 wherein said clamp plate is generally rectangular in configuration and has one of said bifurcated ears at each corner thereof, two of said ears along one edge of said plate each having a concavity on the rear side thereof; and wherein there are two of said flexible elements, and said means for detachably securing the other end of each of said elongated flexible elements to said clamp plate comprises; a securing bolt secured to said other end of each of said flexible elements; a friction block slidingly receiving therethrough, the shank of one of said securing bolts and mating with, and positioned in, the concavity of the rear side of one of said bifurcated ears; and a nut threaded on the shank of each of said securing bolts and bearing against said friction block.

Claim 8

A mastarm bracket assembly as defined in claim 5 wherein said track engaging means elongated member is further characterized in having a pair of spaced, opposed flanges projecting toward each other from said side plates, and defining therebetween a slot extending along the length of said elongated member of C-shaped cross-sectional configuration, said spaced opposed flanges further having a plurality of spaced, generally circular openings formed through the flanges and bisected by said slot; and wherein said base plate has a plurality of spaced openings therein aligned with said generally circular openings whereby bolts having a greater length than the distance between said base plate and said spaced, opposed flanges can be extended through said generally circular openings, and through the aligned openings in said base plate to position the head of the bolts within the interior of said elongated member of C-shaped cross-sectional configuration constituting said track engaging means.

Claim 9

A mastarm bracket assembly as defined in claim 7 wherein said C-shaped edge channel is further characterized in having spaced, opposed projecting toward each other and extending substantially parallel to the base plate of the elongated member of said track engaging means and parallel to the spaced, opposed flanges of the elongated member of such track engaging means; and wherein said mastarm bracket assembly is further characterized in having a plurality of bolts having heads positioned within said C-shaped edge channel, with the shank of said bolts projecting between said spaced, opposed flanges of said C-shaped edged channel and through the spaced openings in the base plate of said elongated member forming said track engaging means; and nuts threaded on the shanks of said bolts to releasably retain said track engaging means in engagement with said C-shaped edge channel.

Claim 10

A mastarm bracket assembly as defined in claim 8 wherein said clamp plate is generally rectangular in configuration and has one of said bifurcated ears at each corner thereof, two of said ears along one edge of said plate each having a concavity on the rear side thereof; and wherein there are two of said flexible elements, and said means for detachably securing the other end of each of said elongated flexible elements to said clamp plate comprises; a securing bolt secured to said other end of each of said flexible elements; a friction block slidingly receiving therethrough, the shank of one of said securing bolts and mating with, and positioned in, the concavity on the rear side of one of said bifurcated ears; and a nut threaded on the shank of each of said securing bolts and bearing against said friction block.

Claim 11

A universal mastarm bracket assembly comprising: an elongated mounting member mounted to supportingly receive a structure for providing a visual display of indicia; engaging means slidingly engaging said elongated mounting member for sliding movement longitudinally along said elongateD mounting member; means for selectively securing said engaging means to said mounting member at a selected location along the length thereof; moveable joint means secured to said engaging means and projecting from the engaging means in a direction substantially normal to the longitudinal axis of said elongated mounting member, said joint means including: a first tubular section; and a second tubular section telescopingly engaging the second tubular section for rotation on the first tubular section about an axis extending through, and common to, the first and second tubular sections; means for selectively securing the second tubular section against rotation on the first tubular section at a desired point in the course of one complete rotation about said first tubular section; a clamp plate secured to the end of said second tubular section opposite its end telescopingly engaged with said first tubular section, said clamp having a concave side disposed on the opposite side thereof from its side secured to said second tubular section for general mating engagement with the cylindrical surface of a mast arm; and means detachably secured to said clamp plate and extendable around a mast arm for drawing said clamp plate into engagement with said mast arm.

Claim 12

A universal mastarm bracket assembly comprising: an elongated mounting member mounted to supportingly receive a structure for providing a visual display of indicia; engaging means slidingly engaging said elongated mounting member for sliding movement longitudinally along said elongateD mounting member; means for selectively securing said engaging means to said mounting member at a selected location along the length thereof; moveable joint means secured to said engaging means and projecting from the engaging means in a direction substantially normal to the longitudinal axis of said elongated mounting member, said joint means including: a first tubular section; and a second tubular section telescopingly engaging the second tubular section for rotation on the first tubular section about an axis extending through, and common to, the first and second tubular sections; means for selectively securing the second tubular section against rotation on the first tubular section at a desired point in the course of one complete rotation about said first tubular section; a clamp plate secured to the end of said second tubular section opposite its end telescopingly engaged with said first tubular section, said clamp having a concave side disposed on the opposite side thereof from its side secured to said second tubular section for general mating engagement with the cylindrical surface of a mast arm; and means detachably secured to said clamp plate and extendable around a mast arm for drawing said clamp plate into engagement with said mast arm.

Claim 13

A universal mastarm bracket assembly as defined in claim 10 wherein said engaging means comprises an elongated member of C-shaped cross sectional configuration including: a base plate; and a pair of side plates extending along opposite sides of said elongated mounting member for tracking along said elongated mounting member during the sliding movement of said engaging means on said elongated mounted member.

Claim 14

A universal mastarm bracket assembly as defined in claim 10 wherein said clamp plate is configured to provide a surface of generally semi-cylindrical configuration for mating with a portion of a cylindrical mastarm; and wherein said means detachably secured to said clampplate comprises: first means extendable around a mastarm and having one end detachably connected to one side edge of said clamp plate, and a second end detachably connected to a second side edge of said clamp plate; and second means extendable around a mastarm and having one end detachably connected to said one side edge of said clamp plate and a second end detachably connected to a second side edge of said clamp plate.

Claim 15

A universal mastarm bracket assembly as defined in claim 12 wherein said clamp plate is rectangular in configuration and said mastarm bracket assembly is further characterized in including means at each corner of the plate facilitating detachable connection to the clamp plate of the ends of the first and second means extendable around a mastarm.