US1040995A - Machine for making sheet insulation. - Google Patents

Machine for making sheet insulation. Download PDF

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Publication number
US1040995A
US1040995A US51057509A US1909510575A US1040995A US 1040995 A US1040995 A US 1040995A US 51057509 A US51057509 A US 51057509A US 1909510575 A US1909510575 A US 1909510575A US 1040995 A US1040995 A US 1040995A
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United States
Prior art keywords
belt
fragments
machine
sheet
perforated
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US51057509A
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Kurt Bassler
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General Electric Co
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General Electric Co
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Priority to US51057509A priority Critical patent/US1040995A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres

Definitions

  • This invention relates to means for producing sheet insulation for electrical and other uses and has for its object the provision of a machine for making insulation of this character which will readily adapt itself to a variety of uses and which may be produced at a very low cost.
  • One of the objects of my invention is the production of sheet insulation made from small pieces or fragments of insulating material suchas mica or the like mounted upon a flexible fibrous base.
  • I employ pneumatic means for drawing the mica fragments onto the foundation sheet.
  • the arrangement is such that a continuous current of air is drawn through a movable net work or wire screen, which is so arranged that only a portion of the net work is subjected to the action of the current of air.
  • the fragments are drawn upon the screen and then pressed upon a traveling roller upon which the foundation sheet is mounted.
  • An adhesive material is then applied which holds the fragments in place and the sheet may then continue to travel and receive successive layers of the fragments.
  • the machine consists mainly of a large rotating drum A and a smaller drum B over which runs an endless belt or sheet C of fibrous material, such as cloth or paper.
  • This belt may be formed in any desired manner, as, for .instance, by securing the ends of the fibrous sheet together by adhesive.
  • This sheet is utilized as a foundation sheet.
  • This box D is a box of substantially the same width as the drum and having located at its lower end a perforated drum E.
  • This drum may be of sheet metal, if desired.
  • the perforations may be of any suitable size, dependent upon the size of the fragments to be used, and other conditions.
  • This box D is opened on the side toward the drum as shown, and the air is exhausted from the box by means of a pipe M.
  • F is an endless wire screen or perforated belt which is led over the rollers G, H and I, as well as over the perforated cylinder E. This wire screen also passes through the box D and rests at its upper end upon the drum A.
  • K represents a belt or conveyer, by which the small mica fragments are carried to the perforated cylinder.
  • L is a spraying device for spraying adhesive, such as shellac, on the sheet C.
  • the endless cords or wires N are arranged on a pulley so as to engage a portion of the sheet C to hold the mica fragments in place.
  • the mode of operation is as follows: The mica fragments are placed upon the conveyer K in any desired manner and fed to the perforated belt or roller E, a vacuum being maintained Within the box D. As the mica fragments reach the perforated belt they. are drawn upward so as to cover the perforations and a layer of mica fragments is thereby spread over the belt. These fragments adhere to the perforated belt and are then pressed against the sheet C, which is being rotated at the same speed as the perforated belt. When the fragments leave the box D there is no longer any pressure maintained upon the fragments from the vacuum. They are held on by the pressure between the two belts until they reach the upper portion, where they are sprayed with adhesive material by the spraying device L. The sheet continues around the roller 13 and the fragments are held on by the wires N. This rotation may be continued and successive layers applied. The sheet may then be cut from the rolls and, if desired, the mica separated from the foundation sheet.
  • a machine for making sheet insulation comprising a movable screen, means for producing a vacuum on one side of said screen,
  • a machine for making sheet insulation comprising a perforated endless belt, means for producing a vacuum within said belt, a device for feeding mica fragments or the like to the belt to be held thereby, and a support movable with said belt for receiving the mica fragments from the belt.
  • a machine for making sheet insulation comprising a perforated endless belt, a perforated supporting roller therefor, means for producing a vacuum within said belt and roller, a device for feeding mica fragments or the like to be held by the belt and an endless support movable with said belt 0;- receiving the mica fragments from the e t. 4:.
  • a machine for making sheet insulation comprising a perforated endless belt, means for producing a vacuum in a portion of the space within said belt, a device for feeding mica fragments or the like to the belt to be held thereby throughout the evacuated por-' tion and a support engaging the belt beyond the evacuated portion to receive the mica fragments therefrom.
  • a machine for making sheet insulation comprising a perforated endless belt, meansfor producing a vacuum in a portion of the space within said belt, a device for feeding mica fragments or the like to the belt to be held thereby throughout the evacuated portion, a support engaging the belt beyond the evacuated portion to receive the mica fragments therefrom and means for applying adhesive to the fragments on the support.
  • machine for making sheet insulation comprismg a perforated endless belt, means for producing a vacuum in the portion of the space within said belt, a device for feedmica fragments or the like to the belt H1 to be held thereby throughout the evacuated porting roller and means for applying adhesive material to the fragments after leaving the belt.
  • a machine for making sheet insulation comprising a perforated endless belt, a perforated supporting roller therefor, means for producing a vacuum within said belt and roller, an imperforate supporting roller arranged to be engaged by the perforated belt throughout a portion of its surface, means for feeding mica fragments'or the like to the belt to be held thereby and pressed ontoi the imperforate roller, and means for applying adhesive material to the fragments after leavingthe belt.
  • a machine for making sheet insulation comprising a pair of rollers mounted in parallel relation for receiving a flexible sheet, a perforated endless belt engaging one of said rollers throughout a portion of its surface, means for producing a vacuum within a portion of the space within the belt, means for feeding mica fragments or the like to the belt to be held thereby and pressed onto the roller, and means for applying ad hesive material to the fragments after leaving the belt.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Description

K. BASSLER.
MACHINE FOR MAKING SHEET INSULATION.
'lPLIOATION FILED JULY 31, 1909.
1,040,995. Patented Oct. 15, 1912.
2 I I I i q I I l a am a I l I 2 1 IAYITNESSES: JNYL ZTUH URT ASSLEH. //77 @00 7 6 4 QM a W UNITED STATES PATENT OFFICE.
KURT BASSLER, OF BERLIN, GERMANY, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.
MACHINE FOR MAKING SHEET INSULATION.
Specification of Letters Patent.
Patented Oct. 15, 1912.
To all'who'm it may concemi Be it known that I, KURT BAssLnn, a subject ofthe King of Saxony, residing at Berlin, Germany, have invented certain new and useful Improvements in Machines for Making .Sheet Insulation, of which the following is a specification.
This invention relates to means for producing sheet insulation for electrical and other uses and has for its object the provision of a machine for making insulation of this character which will readily adapt itself to a variety of uses and which may be produced at a very low cost.
One of the objects of my invention is the production of sheet insulation made from small pieces or fragments of insulating material suchas mica or the like mounted upon a flexible fibrous base. In. carrying out my invention, I employ pneumatic means for drawing the mica fragments onto the foundation sheet. The arrangement is such that a continuous current of air is drawn through a movable net work or wire screen, which is so arranged that only a portion of the net work is subjected to the action of the current of air. The fragments are drawn upon the screen and then pressed upon a traveling roller upon which the foundation sheet is mounted. An adhesive material is then applied which holds the fragments in place and the sheet may then continue to travel and receive successive layers of the fragments.
In the accompanying drawing is shown, in a somewhat diagrammatic way, a ma chine for carrying out my invention.
Referring to the drawing, the machine consists mainly of a large rotating drum A and a smaller drum B over which runs an endless belt or sheet C of fibrous material, such as cloth or paper. This belt may be formed in any desired manner, as, for .instance, by securing the ends of the fibrous sheet together by adhesive. This sheet is utilized as a foundation sheet.
D is a box of substantially the same width as the drum and having located at its lower end a perforated drum E. This drum may be of sheet metal, if desired. The perforations may be of any suitable size, dependent upon the size of the fragments to be used, and other conditions. This box D is opened on the side toward the drum as shown, and the air is exhausted from the box by means of a pipe M.
F is an endless wire screen or perforated belt which is led over the rollers G, H and I, as well as over the perforated cylinder E. This wire screen also passes through the box D and rests at its upper end upon the drum A.
K represents a belt or conveyer, by which the small mica fragments are carried to the perforated cylinder.
L is a spraying device for spraying adhesive, such as shellac, on the sheet C. The endless cords or wires N are arranged on a pulley so as to engage a portion of the sheet C to hold the mica fragments in place.
The mode of operation is as follows: The mica fragments are placed upon the conveyer K in any desired manner and fed to the perforated belt or roller E, a vacuum being maintained Within the box D. As the mica fragments reach the perforated belt they. are drawn upward so as to cover the perforations and a layer of mica fragments is thereby spread over the belt. These fragments adhere to the perforated belt and are then pressed against the sheet C, which is being rotated at the same speed as the perforated belt. When the fragments leave the box D there is no longer any pressure maintained upon the fragments from the vacuum. They are held on by the pressure between the two belts until they reach the upper portion, where they are sprayed with adhesive material by the spraying device L. The sheet continues around the roller 13 and the fragments are held on by the wires N. This rotation may be continued and successive layers applied. The sheet may then be cut from the rolls and, if desired, the mica separated from the foundation sheet.
While I have described my invention as embodied in concrete form and as operating in a specific manner, for purposes of illustration, it should be understood that I do not limit my invention thereto, since various modifications thereof will suggest themselves to those skilled in the art without departing from the spirit of my invention, the scope of which is set forth in the-annexed claims.
What I claim as new and desire to secure by Letters Patent of the United States, is,--
1. A machine for making sheet insulation comprising a movable screen, means for producing a vacuum on one side of said screen,
a device for feeding mica fragments or the like to' the screen to be held thereby, and a movable support upon which the fragments are pressed by the screens 2. A machine for making sheet insulation comprising a perforated endless belt, means for producing a vacuum within said belt, a device for feeding mica fragments or the like to the belt to be held thereby, and a support movable with said belt for receiving the mica fragments from the belt. 3
3. A machine for making sheet insulation comprising a perforated endless belt, a perforated supporting roller therefor, means for producing a vacuum within said belt and roller, a device for feeding mica fragments or the like to be held by the belt and an endless support movable with said belt 0;- receiving the mica fragments from the e t. 4:. A machine for making sheet insulation comprising a perforated endless belt, means for producing a vacuum in a portion of the space within said belt, a device for feeding mica fragments or the like to the belt to be held thereby throughout the evacuated por-' tion and a support engaging the belt beyond the evacuated portion to receive the mica fragments therefrom.
5. A machine for making sheet insulation comprising a perforated endless belt, meansfor producing a vacuum in a portion of the space within said belt, a device for feeding mica fragments or the like to the belt to be held thereby throughout the evacuated portion, a support engaging the belt beyond the evacuated portion to receive the mica fragments therefrom and means for applying adhesive to the fragments on the support.
6. machine for making sheet insulation comprismg a perforated endless belt, means for producing a vacuum in the portion of the space within said belt, a device for feedmica fragments or the like to the belt H1 to be held thereby throughout the evacuated porting roller and means for applying adhesive material to the fragments after leaving the belt.
: 8. A machine for making sheet insulation comprising a perforated endless belt, a perforated supporting roller therefor, means for producing a vacuum within said belt and roller, an imperforate supporting roller arranged to be engaged by the perforated belt throughout a portion of its surface, means for feeding mica fragments'or the like to the belt to be held thereby and pressed ontoi the imperforate roller, and means for applying adhesive material to the fragments after leavingthe belt.
9. A machine for making sheet insulation comprising a pair of rollers mounted in parallel relation for receiving a flexible sheet, a perforated endless belt engaging one of said rollers throughout a portion of its surface, means for producing a vacuum within a portion of the space within the belt, means for feeding mica fragments or the like to the belt to be held thereby and pressed onto the roller, and means for applying ad hesive material to the fragments after leaving the belt.
In Witness whereof, I have hereunto set my hand this 19th day of Lily, 1909.
KURT BASSLER.
, Witnesses:
TY EMILIO FoRnELLI, GUILIsoN MARIO.
US51057509A 1909-07-31 1909-07-31 Machine for making sheet insulation. Expired - Lifetime US1040995A (en)

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US51057509A US1040995A (en) 1909-07-31 1909-07-31 Machine for making sheet insulation.

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