US2538404A - Grommet forming machine - Google Patents

Grommet forming machine Download PDF

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Publication number
US2538404A
US2538404A US84801A US8480149A US2538404A US 2538404 A US2538404 A US 2538404A US 84801 A US84801 A US 84801A US 8480149 A US8480149 A US 8480149A US 2538404 A US2538404 A US 2538404A
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United States
Prior art keywords
mandrel
grommet
forming machine
lever
grommet forming
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Expired - Lifetime
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US84801A
Inventor
William M Young
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ECHO GASKET Manufacturing CORP
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ECHO GASKET Manufacturing CORP
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Publication date
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Priority to US84801A priority Critical patent/US2538404A/en
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Publication of US2538404A publication Critical patent/US2538404A/en
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Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation

Definitions

  • a lever 85 Pivoted on the front of the table is a lever 85 which is connected to a chain 35.
  • This chain 86 is connected to the foot lever l1 whereby as the foot lever I1 is depressed the lever 85 will be pivoted in a counter-clockwise direction as shown in Fig. 2 so as to elevate a rod El having a wheel 83 thereon.
  • the rod 81 when released, will be returned to an adjustable stop 89.
  • the wheel 88 can engage with the mandrel 3i and by connection with the roller 29 cause the mandrel to be withdrawn after it has been extended forwardly to form the grommet.
  • the twisted strands of rope material can be placed upon the spindle in the manner as shown in Fig.
  • the mandrel will be drawn along with the rope material so as to cause the rope material to be passed between the rollers which will effect a twisting action upon the same and eventually form the grommet as shown in Fig. 7.
  • the operator will step upon the 4 flexibility to permit the easy formation of a grommet of rope material and that such a machine has a simple control arrangement whereby the hands can be made free while the various devices are operated by the feet.
  • controls the electric motor [8.
  • a grommet forming machine comprising a table, ,a constantly driven shaft, operating rollers spaced one above the other and pulley belt means connecting said rollers with said shaft to effect the reverse operation of the rollers, a mandrel operable between the rollers, a member fixed to the table and having a square opening therein, said mandrel having a spiral extension thereon adapted upon engagement with the square opening in the member to cause the mandrel to be turned, guide rods on the opposite side of the mandrel, a slide connected to the mandrel and to the guide rods to slide over the guide rods, releasable means connected to the slide and to the constantly driven shaft for effecting the movement of the mandrel, said mandrel being rotatable in the slide and a lever arrangement connecting with the releasable means for controlling its operation.
  • a grommet forming machine as defined in claim 1 and a return device for the mandrel comprising a vertically adjustable member having a roller thereupon and adapted when elevated to engage with the mandrel to cause its a return movement and with one of the twisting rollers to be powered therefrom.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insulating Bodies (AREA)

Description

Jan. 16, 1951 w. M. YOUNG GROMMET FORMING MACHINE 2 SheetsSheet 1 Filed April 1, 1949 INVENTOR.
Jan. 16, 1951 w YOUNG 2,538,404
GROMMET FORMING MACHINE Filed April 1, 1949 2 Sheets-Sheet 2 INVENTOR. Maxi/WM WHO/6 'erly prepared for the forming of the grommet, there is provided a spindle ll mounted on a bracket 12 and adapted to be operated by a belt '13 connected with a large pulley wheel Is on the driving shaft I5. This spindle H has a transverse member 15 to which the rope material is connected and while retaining the free ends of the rope material in the manner illustrated in Fig. 1, the material will be twisted and preformed. The rotation of the spindle H is controlled by a foot lever I! pivoted on the shaft 58 and is connected by a chain T8 to a pivoted lever 19, Fig. 2, which will normally keep a clutch element 8! out of engagement with the pulley belt 13 due to the action of the spring 82. When the lever H is depressed, the action of the spring is overcome and a spring 83 on the spindle shaft "H will urge the clutch element 81 into engagement with the pulley.
Pivoted on the front of the table is a lever 85 which is connected to a chain 35. This chain 86 is connected to the foot lever l1 whereby as the foot lever I1 is depressed the lever 85 will be pivoted in a counter-clockwise direction as shown in Fig. 2 so as to elevate a rod El having a wheel 83 thereon. The rod 81, when released, will be returned to an adjustable stop 89. The wheel 88 can engage with the mandrel 3i and by connection with the roller 29 cause the mandrel to be withdrawn after it has been extended forwardly to form the grommet. The twisted strands of rope material can be placed upon the spindle in the manner as shown in Fig. 3, and as the operator steps on the foot lever ll, the mandrel will be drawn along with the rope material so as to cause the rope material to be passed between the rollers which will effect a twisting action upon the same and eventually form the grommet as shown in Fig. 7. Once the grommet has been formed, the operator will step upon the 4 flexibility to permit the easy formation of a grommet of rope material and that such a machine has a simple control arrangement whereby the hands can be made free while the various devices are operated by the feet. An electric switch 9| controls the electric motor [8.
While various changes may be made in the detail construction, it shall be understood that such changes shall be within the spirit and scope of the present invention as defined by the appended claims.
Having thus set forth and disclosed the nature of my invention, what is claimed is:'
lever 11 and cause the roller 88 to be elevated for l. A grommet forming machine comprising a table, ,a constantly driven shaft, operating rollers spaced one above the other and pulley belt means connecting said rollers with said shaft to effect the reverse operation of the rollers, a mandrel operable between the rollers, a member fixed to the table and having a square opening therein, said mandrel having a spiral extension thereon adapted upon engagement with the square opening in the member to cause the mandrel to be turned, guide rods on the opposite side of the mandrel, a slide connected to the mandrel and to the guide rods to slide over the guide rods, releasable means connected to the slide and to the constantly driven shaft for effecting the movement of the mandrel, said mandrel being rotatable in the slide and a lever arrangement connecting with the releasable means for controlling its operation.
2. A grommet forming machine as defined in claim 1 and a return device for the mandrel comprising a vertically adjustable member having a roller thereupon and adapted when elevated to engage with the mandrel to cause its a return movement and with one of the twisting rollers to be powered therefrom.
r WILLIAM YOUNG.
7 REFERENCES CITED The following references are of record in the file of this patent:
. UNITED STATES PATENTS Number Name Date 1,714,339 Young et al May 21, 1929 2,224,754 Young Dec. 10, 1940
US84801A 1949-04-01 1949-04-01 Grommet forming machine Expired - Lifetime US2538404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US84801A US2538404A (en) 1949-04-01 1949-04-01 Grommet forming machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84801A US2538404A (en) 1949-04-01 1949-04-01 Grommet forming machine

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US2538404A true US2538404A (en) 1951-01-16

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US84801A Expired - Lifetime US2538404A (en) 1949-04-01 1949-04-01 Grommet forming machine

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1714339A (en) * 1928-07-25 1929-05-21 William A Young Grommet-making machine
US2224754A (en) * 1939-11-02 1940-12-10 William A Young Grommet making machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1714339A (en) * 1928-07-25 1929-05-21 William A Young Grommet-making machine
US2224754A (en) * 1939-11-02 1940-12-10 William A Young Grommet making machine

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