Tamid 33A

מלא וגדוש קטרת, וכסוי היה לו. וכמין מטוטלת היה עליו מלמעלן.

The vessel was filled to overflow with incense. And it had a cover to prevent spillage of the incense, and there was a type of cloth placed upon it from above, to preserve the fragrance of the incense.

ה מי שזכה במחתה, נטל מחתת הכסף ועלה לראש המזבח, ופנה את הגחלים הילך [והילך], וחתה (מן המאוכלות הפנימיות). ירד ועירן לתוך של זהב, נתפזר ממנו כקב גחלים, והיה מכבדן לאמה.

Mishnah 5:5 The priest who won the right to bring the coal pan with the coals from the outer altar to the incense altar in the Sanctuary took the silver coal pan, ascended to the top of the outer altar, and cleared the extinguished coals from the perimeter of the flame to here and to there. Then he shoveled 4 kav from the consumed inner coals, which were burned in the depths of the flame, into the coal pan. He descended from the altar and emptied the coals into the coal pan made of gold. Approximately one kav of coals from it was spilled and scattered on the courtyard floor, as the capacity of the gold pan was only 3 kav. And a priest would sweep the scattered coals into the Temple courtyard drain that passed through the courtyard to drain the waste outside the Temple.

ובשבת היה כופה עליהן פסכתר. ופסכתר היתה כלי גדול מחזקת לתך. ושתי שרשרות היו בה, אחת ⁠– שהוא מושך בה ויורד. ואחת ⁠– שהוא אוחז בה מלמעלן, בשביל שלא תתגלגל.

And on Shabbat, when it is prohibited to extinguish fire, the priest would not sweep the coals into the canal; rather, he would overturn a pesakhter upon them. And the pesakhter was a large vessel that held a half-kor. And since the pesakhter was a very heavy vessel, there were two chains on it, to facilitate its standard use, removal of ashes from the altar: One chain with which a priest would pull the vessel filled with ashes down the ramp, and one chain that another priest would grasp from above, so that the vessel would not roll down the ramp and the ashes would not spill.