초록 ▼

An improved banner holder and method for exchangeable signs, flags, and other banners with extreme structural simplicity and a minimum moving parts. The banner holder comprises a support, at least one mounting members, an interchangeable brace to hold the banner, and an apparatus to automatically re

An improved banner holder and method for exchangeable signs, flags, and other banners with extreme structural simplicity and a minimum moving parts. The banner holder comprises a support, at least one mounting members, an interchangeable brace to hold the banner, and an apparatus to automatically reduce wind loads on the banner. The banner is mounted on a brace. The brace engages one or more unique mounting members in such fashion as to make the brace, and the banner mounted on it, easily mountable, removable, and replaceable. The apparatus further protects the banner and banner holder from wind damage by automatically reducing the effective area of a banner in response to wind loading.

대표청구항 ▼

An improved banner holder and method for exchangeable signs, flags, and other banners with extreme structural simplicity and a minimum moving parts. The banner holder comprises a support, at least one mounting members, an interchangeable brace to hold the banner, and an apparatus to automatically re

An improved banner holder and method for exchangeable signs, flags, and other banners with extreme structural simplicity and a minimum moving parts. The banner holder comprises a support, at least one mounting members, an interchangeable brace to hold the banner, and an apparatus to automatically reduce wind loads on the banner. The banner is mounted on a brace. The brace engages one or more unique mounting members in such fashion as to make the brace, and the banner mounted on it, easily mountable, removable, and replaceable. The apparatus further protects the banner and banner holder from wind damage by automatically reducing the effective area of a banner in response to wind loading. centered between the flanged rollers. 4. The track maintenance machine of claim 3, wherein the scanning target is a ruler and the reference point is a peg projecting from the ruler. 5. The track maintenance machine of claim 1, wherein an optical center of the measuring device relative to the longitudinal extension of the machine frame is arranged on an underside of the machine frame above the track scanning unit. 6. The track maintenance machine of claim 1, wherein the track scanning unit comprises a measuring axle connected to a laser receiver for generating a measuring line, and the measuring axle is pivotally linked to the machine frame forwardly of a front undercarriage with respect to the operating direction. 7. The track maintenance machine of claim 1, wherein the antenna of the satellite receiver is connected to the machine frame above the track scanning unit. 8. A method of monitoring a track position by scanning the track, which comprises the steps of (a) determining the position an antenna center of an antenna of a satellite receiver receiving extraterrestrial position signals relative to a reference point on a track scanning unit adjustably connected to a machine frame of a track maintenance machine and having flanged rollers for moving the machine frame in an operating direction along the track, the satellite receiver also being connected to the machine frame, and (b) automatically recording the absolute track position coordinates in the range of the track scanning unit by determining the coordinate position of the antenna center by means of the position signals. tions assembled by at least one of angle, curvature and surface structures. 20. The device according to claim 17, further including rotating clearing blades disposed in front of the diverting surfaces to free the diverting surfaces from particle deposits. 21. The device according to claim 20, wherein the cleaning blades are mounted to the centrifuge drum. 22. The device according to claim 17, further including gas-aspirating and gas-discharging blower blades which cooperate with the diverting surfaces, and are mounted to the centrifuge drum. 23. The device according to claim 22, wherein the blower blades convey dust-laden hot gas a out of the drier chamber and into the discharge zone, with the surfaces of the discharged solid particles being coated with dry, fine dust. 24. The device according to claim 22, wherein the blower blades have at least one of aspiration openings to the drier chamber, inclined aspiration edges and inclined side walls. 25. The device according to claim 22, wherein the blower blades comprise at least one of forward-curved, radial blades and forward-curved axial blades. 26. The device according to claim 22, wherein the blower blades comprise backward-curved blades. 27. The device according to claim 17, wherein the rotating turbulence blades are arranged in the drier chamber so as to cooperate with the diverting surfaces. 28. The device according to claim 17, wherein the turbulence blades are such arranged so that at lease one of the drying gas and dust blows against at least one of the diverting surfaces and the drier end walls. 29. The device according to claim 12, wherein the rotating turbulence blades are adapted to aspirate and convey dust-laden gas out of the drier chamber. 30. The device according to claim 12, wherein the rotating turbulence blades are adapted to convey dispersed particles. 31. The device according to claim 12, further including conical or bowl-shaped perforated sheets comprising at least one sections built into the drier chamber for better gas distribution. 32. The device according to claim 31, wherein the perforated sheets are spatially curved at least one time in the manner, of a corrugated sheet. 33. The device according to claim 31, wherein the holes of the perforated sheets for the passage of gas are circular or slot-shaped, and the have a free aperture ratio in t radial or peripheral sections that varies greatly from 0 to 100%. 34. The device according to claim 31, wherein the perforated sheets include radial or peripheral sections that partially comprise solid sheets or slot openings. 35. The device according to claim 12, further including directing sheets dispose