US1291456A - Pneumatic apparatus for taking off single sheets from piles. - Google Patents

Pneumatic apparatus for taking off single sheets from piles. Download PDF

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Publication number
US1291456A
US1291456A US25280818A US25280818A US1291456A US 1291456 A US1291456 A US 1291456A US 25280818 A US25280818 A US 25280818A US 25280818 A US25280818 A US 25280818A US 1291456 A US1291456 A US 1291456A
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United States
Prior art keywords
single sheets
taking
piles
piston
pneumatic apparatus
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Expired - Lifetime
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US25280818A
Inventor
Shimon Feldman
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J M AIVAZ PAR ACTION POUR CONSTRUCTION DE MACHINES Ste
J M AIVAZ SOC PAR ACTION POUR CONSTRUCTION DE MACHINES
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J M AIVAZ SOC PAR ACTION POUR CONSTRUCTION DE MACHINES
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Priority to US25280818A priority Critical patent/US1291456A/en
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Publication of US1291456A publication Critical patent/US1291456A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/085—Suction grippers separating from the bottom of pile
    • B65H3/0858—Suction grippers separating from the bottom of pile this action resulting merely in a curvature of each article being separated
    • B65H3/0866—Suction grippers separating from the bottom of pile this action resulting merely in a curvature of each article being separated the final separation being performed between rollers

Definitions

  • the present invention relates to a pump by the aid of which a vacuum is produced for sucking off the single sheets to be separated.
  • Fig. 2 is a plan view of the apparatus.
  • Fig. 3 is a similar view to Fig. 1 when a sheet is being taken from the pile.
  • the apparatus consists of a pneumatic pump 1, the bottom end 2 of which is provided with a pipe 3 leading to the sucking device 4 arranged beneath the pile of sheets 5 and mounted on the hinge 6.
  • the rod 7 of the piston 8 is connected with the crank 9 by means of the connecting rod 10, forming the chief part of the invention.
  • the described apparatus enables each sheet to be kept separated from the pile during the desired period of time, when this sheet may be subjected to all operations, pulling, etc.
  • a cylinder In an apparatus for separating single sheets from a pile, a cylinder, a suction device connected to the cylinder and communicating with the interior of the same, a piston mounted in the cylinder, a drive shaft, a crank mounted on the shaft, an extensible connecting rod having one of its ends connected to the piston and its other end connected to the crank, and springs for normally holding said rod in unextended position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Description

S. FELDMAN.
PNEUMATIC APPARATUS FOR TAKING OFF SINGLE SHEETS FROM FILES. APPLICATION FILED SEPT. 5. 1912.
1,291,456. Patented Jan. 14,1919.
iigmi INVENTUR 5.1 eZd/mwn,
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UNITED STATES PATENT OFFICE.
SHIMON FEIIDMAN, OF PETROGRAD, RUSSIA, ASSIGNOR T0 J. M. AIVAZ SOCIETE PAR ACTION POUR CONSTRUCTION DE MACHINES, OF PETROGRAD, RUSSIA.
PNEUMATIC APPARATUS FOR TAKING OFF SINGLE SHEETS FROM PILES.
Specification of Letters Patent.
Patented Jan. 14, 1919.
Application filed September 5, 1918. Serial No. 252,808.
To all whom it may concern Be it known that I, SHIMON FELDMAN, a citizen of Russia, and residing at Petrograd, Russia, have invented certain new and useful Improvements in Pneumatic Apparatus for Taking Off Single Sheets from Piles. of which the following is a specification.
The present invention relates to a pump by the aid of which a vacuum is produced for sucking off the single sheets to be separated.
The accompanying drawing shows one mode of carrying out the invention, in which Figure 1 is a longitudinal section through the pump.
Fig. 2 is a plan view of the apparatus; and
Fig. 3 is a similar view to Fig. 1 when a sheet is being taken from the pile.
The apparatus consists of a pneumatic pump 1, the bottom end 2 of which is provided with a pipe 3 leading to the sucking device 4 arranged beneath the pile of sheets 5 and mounted on the hinge 6. The rod 7 of the piston 8 is connected with the crank 9 by means of the connecting rod 10, forming the chief part of the invention. When the piston .8 moves to the left a moment arises when the rarefaction in the chamber 11 arrives at the maximum value permitted by the connecting rod. In order that the sucking device 4 work successfully, it is necessary that this state of the maximum rarefaction lasts as long as possible, and for this purpose the connecting rod 10 is made extensible (Figs. 1 and 3). At the moment when the rarefaction in the chamber 11 arrives at its maximum, the connecting rod 10 on the further rotation of the crank 9 on the axle 12 is extended, thus stretching the springs 13. The piston 8 remains in the position as shown in Fig. 8 during the period of time until the piston attains the position when the shoulder 14. of the solid portion of the rod engages the end of the tubular portion of said rod and then the piston begins to move back. At the back movements of the piston the rarefaction in the chamber 11 is diminished to permit the separation of the sheet from the sucking device 4.
The described apparatus enables each sheet to be kept separated from the pile during the desired period of time, when this sheet may be subjected to all operations, pulling, etc.
Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. In an apparatus for separating single sheets from a pile, a cylinder, a suction device connected to one end of the cylinder and communicating with the interior of the same, a piston movably mounted in the cylinder, a drive shaft, an extensible connecting rod having one of its ends connected to the piston, means for connecting the other end of the rod to the shaft, and a resilient member mounted on the connecting rod for normally holding the same in unextended position.
2. In an apparatus for separating single sheets from a pile, a cylinder, a suction device connected to the cylinder and communicating with the interior of the same, a piston mounted in the cylinder, a drive shaft, a crank mounted on the shaft, an extensible connecting rod having one of its ends connected to the piston and its other end connected to the crank, and springs for normally holding said rod in unextended position.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. v
SHIMON FELDMAN.
Witnesses:
Boers MOFEIK, Moses SUISARANKA.
copiel of this patent may be obtainedv for five cents each, by addressing the "Commissioner of Patents.
Washington, D. 0.
US25280818A 1918-09-05 1918-09-05 Pneumatic apparatus for taking off single sheets from piles. Expired - Lifetime US1291456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US25280818A US1291456A (en) 1918-09-05 1918-09-05 Pneumatic apparatus for taking off single sheets from piles.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25280818A US1291456A (en) 1918-09-05 1918-09-05 Pneumatic apparatus for taking off single sheets from piles.

Publications (1)

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US1291456A true US1291456A (en) 1919-01-14

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