摘要:
A dispenser (100), a flexible sheet material roll (12), and a dispensing system for dispensing flexible meterial from the sheet material rolls. The system includes a rolled products dispenser and sheet material rolls. The dispenser includes opposing lateral side wall surfaces (104, 114), and a guide track (110, 111) located in each of the lateral side wall surfaces. At least one of the two guide tracks includes an elongated guide projection (124). Each sheet material roll includes flexible sheet material wound around a hollow center core having first and second ends, and first (118) and second (119) end caps positioned in respective ends of the hollow center core (116). Both end caps have an inwardly projecting portion located side the hollow centre core, and an outwardly projecting cylindrical spindle (120, 121) extending outwardly past their respective end of the hollow center core. The spindles guide the roll within the guide tracks of the dispenser. The spindle of one of the end caps includes at least one annular groove (126) in its circumference which interfaces with the elongated guide projection of the guide track, to provide a system where the roll is keyed to fit the dispenser. This assures proper orientation of the rolls in the dispenser, and provides an arrangement for coordinating the quality of the rolls being dispensed from specific dispensers.
摘要:
A door frame (10) having excellent fire-resistance, flexural strength and screw holding properties is fabricated from gypsum fiberboard, specifically a gypsum fiberboard having a density of at least 60 lbs./cu ft., a flexural strength of at least 30 lbs. (1/2' thick material), and a screw holding capability of at least about 400 lbs. A preferred gypsum fiberboard material for fabrication of the door frame (10) comprises a composition containing a substantially uniform dispersion of solids including by weight about 65 % to 90 % set gypsum, about 7 % to about 30 % pulped paper, up to about 9 % binder, and about 8 % to 2 % inorganic fiber. A wood veneer (28) is preferably applied to the visible faces of the gypsum fiberboard door frame members by means of adhesive (30).
摘要:
A dispenser (1) for rolls (14) of flexible sheet material wound on cores is disclosed. The dispenser (1) holds multiple rolls (14) and includes guide tracks (7, 8) for guiding the rolls (14) through the dispenser (1). A holding lever (16) pivotably connected to each side of the dispenser (1) selectively holds the rolls (14) in position in the dispenser (1) and has its pivoting motion controlled by a sensing plate (26) which contacts a lower dispensing roll (14a) to sense when the sheet material is substantially depleted. The lower dispensing roll (14a) is always held out of contact with rollers (50, 52, 54, 56) of a dispensing mechanism (70). A shield (58) is located between the roll surface of the lower dispensing roll (14a) and the rollers (50, 52, 54, 56) of the dispensing mechanism (70).
摘要:
An exterior finishing system for a building, including particularly an exterior insulation system, which includes a fibrous mat-faced gypsum board, preferably a board in which the set gypsum core thereof is water resistant, and preferably one in which the set gypsum is sandwiched between two sheets of porous gfass mat, with the outer surface of at least one of said mats being substantially free of set gypsum, and means for preparing the board, inlcuding control of the viscosity of the aqueous gypsum slurry from which the set gypsum core of the board is formed. Also, the use of florous mat-faced gypsum board as the shaft liner in a shaft wall assembly.
摘要:
A dispenser for rolls of flexible sheet material has a feed roller (30) with a pair of pinch rollers (74,76) spaced around the feed roller periphery to guide a web (W) of the material from a supply roll (R) to the dispenser exit (20). A cutting blade (40) is slidably mounted within the feed roller to move in a path parallel to and offset from a radius of the feed roller with cam followers (62) movable with the blade and extending beyond the ends of the feed roller disposed to reciprocate along this radius. Stationary cams are mounted adjacent the ends of the feed roller engaged with the cam followers, respectively, to positively project the blade cutting edge beyond the feed roller periphery to cut the web and retract such edge as the feed roller is rotated by drawing on the web at the dispenser exit.
摘要:
Shaft wall assemblies (100) comprise fire-resistant framework (101, 103) and gypsum board (110) which is faced with fibrous mat supported by the framework. The gypsum board (110) has a core containing mineral fibres in an amount sufficient to improve the fire-resistant properties of the board.
摘要:
Dispensing flexible sheet material involves mounting at least one roll R on dispensing arm means 48 pivotally connected at 54 to a dispenser 12 near the lower end of the chassis so that as material on the roll is depleted the concomitant diminishing diameter roll R will swing down on the dispensing arm means 48 for the roll axis to move through an arc spaced from the axis of the feed roller 24 to wedge the roll surface firmly against the surface of a feed roller as the axis of the roll R moves toward a line extending through the feed roller axis and the pivotal axis where the dispensing arm means 48 is connected to the chassis. When the roll R is essentially depleted it swings past the line and the feed roller 24 into a discard area 60. Dispensing from multiple rolls in succession utilizes an initial roll R mounted as above described and a reserve arm means 66 connected to the chassis through means 76 which permits the reserve arm means 66 to move down vertically relative to the chassis as the initial roll R is depleted to a lower position where the reserve arm means 66 thereupon pivots relative to the chassis and the reserve roll RR engages with the feed roller 24 when the essentially depleted initial roll R swings into the discard area 60 to swing through an arc similar to that which the initial roll R moved through as its diameter diminished.
摘要:
Dispensing flexible sheet material involves mounting at least one roll R on dispensing arm means 48 pivotally connected at 54 to a dispenser 12 near the lower end of the chassis so that as material on the roll is depleted the concomitant diminishing diameter roll R will swing down on the dispensing arm means 48 for the roll axis to move through an arc spaced from the axis of the feed roller 24 to wedge the roll surface firmly against the surface of a feed roller as the axis of the roll R moves toward a line extending through the feed roller axis and the pivotal axis where the dispensing arm means 48 is connected to the chassis. When the roll R is essentially depleted it swings past the line and the feed roller 24 into a discard area 60. Dispensing from multiple rolls in succession utilizes an initial roll R mounted as above described and a reserve arm means 66 connected to the chassis through means 76 which permits the reserve arm means 66 to move down vertically relative to the chassis as the initial roll R is depleted to a lower position where the reserve arm means 66 thereupon pivots relative to the chassis and the reserve roll RR engages with the feed roller 24 when the essentially depleted initial roll R swings into the discard area 60 to swing through an arc similar to that which the initial roll R moved through as its diameter diminished.