Pneumatic Roof Scraper

Abstract

A pneumatic shingle removing machine, actuated by a linear cylinder, for the purpose of removing shingles from a roof. The machine includes a pneumatic cylinder connected to the deflector shield which moves the attached ripper teeth forward under the shingles while the operator immobilizes the frame by standing on the foot hold down with ratchet teeth on the bottom. On the reverse stroke of the cylinder, the operator removes his foot from the hold down allowing the frame to ratchet forward for the next stroke. An air valve is attached to the T-Handle and hoses are connected to the pneumatic cylinder for the purpose of directing air pressure for forward and reverse motion. The deflector shield rolls the shingles up and forward as the machine is manipulated forward down the roof. The ripper teeth are angled down to stay under the shingles, and two stabilizer rods held in the tubes, permanently affixed to the frame, with linear bearings, maintain level stability.

1 . A pneumatic shingle removing machine, actuated by a linear cylinder [ 1 ], for the purpose of stripping off old shingles from building roof to be re-roofed. 
   
   
       2 . The machine includes a pneumatic cylinder [ 1 ] connected to the deflector shield [ 2 ] which moves the attached ripper teeth [ 3 ] forward under the shingles while the operator immobilizes the frame by standing on the foot hold down [ 4 ] with ratchet teeth [ 5 ] on the bottom. 
   
   
       3 . On the reverse stroke of the cylinder [ 1 ], the operator removes his foot from the hold down [ 4 ] allowing the frame to ratchet forward for the next stroke. 
   
   
       4 . An air valve [ 6 ] is attached to the T-Handle [ 7 ] and hoses are connected to the pneumatic cylinder [ 1 ] for the purpose of directing air pressure for forward and reverse motion. The deflector shield [ 2 ] rolls the shingles up and forward as the machine is manipulated forward down the roof. 
   
   
       5 . The ripper teeth [ 3 ] are angled down to stay under the shingles, and two stabilizer rods [ 8 ] held in the tubes [ 9 ], permanently affixed to the frame, with linear bearings [ 10 ], maintain level stability. 
   
   
       6 . Shingle removal will occur in a timely and efficient manner compared to current hand removal methods.