(19) |
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(11) |
EP 0 153 071 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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14.05.1986 Bulletin 1986/20 |
(43) |
Date of publication A2: |
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28.08.1985 Bulletin 1985/35 |
(22) |
Date of filing: 04.02.1985 |
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(84) |
Designated Contracting States: |
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AT BE CH DE FR GB IT LI LU NL SE |
(30) |
Priority: |
03.02.1984 GB 8402867
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(71) |
Applicant: Jones, Alan Lewis |
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(57) 57 A machine for spraying cement or plastic based materials for building purposes
comprises two separate portions. A hopper portion comprises a frame 10 with a hopper
11 and pump 26 driven via a flexible coupling and shaft 25 from an air motor 20 controlled
via a control unit 21 from the end (not shown) of the spray pipe. A mixing portion
comprises a frame 40 with a mixing chamber 60 mounted thereon, the mixing chamber
containing mixing paddles driven by a second air motor mounted on the frame 40 (Figure
4). The base of the frame 40 fits into one end of the hopper 12 and can be bolted
thereto by bolts through the holes 15,41. The two portions can be separated quickly
for servicing if either breaks down, and a conventional mixer can be used temporarily
with the hopper portion (Figure 1).