US158400A - Improvement in paper-making machines - Google Patents
Improvement in paper-making machines Download PDFInfo
- Publication number
- US158400A US158400A US158400DA US158400A US 158400 A US158400 A US 158400A US 158400D A US158400D A US 158400DA US 158400 A US158400 A US 158400A
- Authority
- US
- United States
- Prior art keywords
- apron
- paper
- rollers
- roller
- pulp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004744 fabric Substances 0.000 description 4
- 239000012634 fragment Substances 0.000 description 2
- 244000286663 Ficus elastica Species 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 208000036366 Sensation of pressure Diseases 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F2/00—Transferring continuous webs from wet ends to press sections
Definitions
- Figure 1 shows a plan of the parts of a paper-making machine involved with my invention attached, and Fig. 2 a side elevation thereof. 7
- a and B respectively, represent the upper and lower couch-rollers.
- 0 represents a portion of the endless wire-cloth apron on which the pulp is strained.
- D and E respectively, represent the upper and lower pressure-rollers.
- F represents a portion of an endless band or apron of felt, passing around a roller, G, and between the pressure-rollers E and D.
- the operation of my invention is as follows
- the pulp being precipitated on the upper side of the wire-cloth apron 0, coming in contact with the under side of the apron H, adheres to it, and is carried between the press ure-rollers D and E.
- the web or sheet of pulp passes onto the band F beyond the rollers D and E, to be dried and calendered.
- roller K In combination, the roller K, doctor L, apron H, and rollers A and D, arranged and operated as set forth.
Landscapes
- Paper (AREA)
Description
1. BUTLER. V Paper-Making Machines.
7 No 58,4001 Patentedlan.5,1875.
.Wsses; I 1
f 44. 4, A, @227, MQWMM ww THE GRAPH ,C 50 =H'JTO-LlTH.39& 4-1 PARK PLACE,N.Y.
UNITED STATES PATENT QFFIGE.
JAMES BUTLER, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN PAPER-MAKING MACHINES.
Specification forming part of Letters Patent No. 158,400, dated January 5, 1875; application filed July 28, 1874.
ber or other flexible material, passing from the couch-rollers to the endless felt apron, passing between the pressure-rollers, holding by atmospheric pressure or capillary attraction, and conveying on its under surface the pulp from the endless wire apron, on which it is precipitated and strained, to the endless felt apron passing between the pressure-rollers; and, also,.in combination therewith, a roller, by means of which the endless belt discharges automatically small fragments or broken sheets of pulp, which would other- 7 wise obstruct the operation of the machine,
and interrupt the continuity of the paper web.
The advantages derived from the use of this invention are, a diminution of waste of pulp and a saving in time and labor to the attendants of the machines.
Figure 1 shows a plan of the parts of a paper-making machine involved with my invention attached, and Fig. 2 a side elevation thereof. 7
The same letters of reference apply to the same parts in the several figures.
A and B, respectively, represent the upper and lower couch-rollers. 0 represents a portion of the endless wire-cloth apron on which the pulp is strained. D and E, respectively, represent the upper and lower pressure-rollers. F represents a portion of an endless band or apron of felt, passing around a roller, G, and between the pressure-rollers E and D.
Around the upper couch-roller, A, and upper pressure-roller, D, I place an endless baud, H, made, preferably, of india-rubber cloth. Inside of the upper part of the band H I place a roller, J, adjustable in height, to keep the band H tightly stretched. On the outside of the apron H a roller, K, is fixed so as to bear and roll'against the band H near the pressure-roller D. Against the side of the roller K is a blade of metal, L, termed a doctor, or ductor, which skims and leads off any pulp or fragments of paper from the roller K.
The direction of motion of the machine when in operation is indicated by arrows in Fig. 2.
The operation of my invention is as follows The pulp being precipitated on the upper side of the wire-cloth apron 0, coming in contact with the under side of the apron H, adheres to it, and is carried between the press ure-rollers D and E. When the web or sheet of pulp is continuous it passes onto the band F beyond the rollers D and E, to be dried and calendered.
When the web of pulp is broken it wraps upon the roller K, and is then skimmed off and discharged by the ductor L.
I am aware that an endless apron of wirecloth has been used upon the upper side of the pulp, to express the water therefrom, and conveying the web of pulp to a pair of pressure-rollers, but not overlapping the endless felt apron. This I distinctly disclaim; but
What I claim as my invention is-- 1. The endless apron H,in combination with the rollers A,B,and D,and lapping upon both the wire-cloth apron (J and felt apron F,'as and for the purpose set forth.
2. In combination, the roller K, doctor L, apron H, and rollers A and D, arranged and operated as set forth.
JAMES BUTLER.
Witnesses:
JAMES P. PETIT, W. FASSHAUER.
Publications (1)
Publication Number | Publication Date |
---|---|
US158400A true US158400A (en) | 1875-01-05 |
Family
ID=2227810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US158400D Expired - Lifetime US158400A (en) | Improvement in paper-making machines |
Country Status (1)
Country | Link |
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US (1) | US158400A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2786398A (en) * | 1952-05-01 | 1957-03-26 | Sprague Electric Co | Apparatus and process for producing an extremely thin paper web |
-
0
- US US158400D patent/US158400A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2786398A (en) * | 1952-05-01 | 1957-03-26 | Sprague Electric Co | Apparatus and process for producing an extremely thin paper web |
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