US3741512A - Self-leveling dispenser - Google Patents

Self-leveling dispenser Download PDF

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Publication number
US3741512A
US3741512A US00195648A US3741512DA US3741512A US 3741512 A US3741512 A US 3741512A US 00195648 A US00195648 A US 00195648A US 3741512D A US3741512D A US 3741512DA US 3741512 A US3741512 A US 3741512A
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United States
Prior art keywords
tongs
frames
frame
torsion
spring
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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
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US00195648A
Inventor
F Olsson
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AMERICAN WYOTT CORP
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AMF Inc
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Publication date
Application filed by AMF Inc filed Critical AMF Inc
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Publication of US3741512A publication Critical patent/US3741512A/en
Assigned to AMF WYOTT, INC., A CORP. OF WYOMING reassignment AMF WYOTT, INC., A CORP. OF WYOMING ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMF INCORPORATED
Assigned to EGMC, INC., A CORP. OF TX reassignment EGMC, INC., A CORP. OF TX ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMF WYOTT, INC., A WY CORP
Assigned to AMERICAN WYOTT CORPORATION reassignment AMERICAN WYOTT CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JUNE 13, 1986 Assignors: EGMC, INC.,
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02—Storage devices
    • B65G1/04—Storage devices mechanical
    • B65G1/06—Storage devices mechanical with means for presenting articles for removal at predetermined position or level
    • B65G1/07—Storage devices mechanical with means for presenting articles for removal at predetermined position or level the upper article of a pile being always presented at the same predetermined level

Definitions

  • This invention relates to a self-leveling dispenser, and more particularly, to a tongs type self-leveling dispenser provided with releasable torsion springs for each of its tongs to provide additional rates of resistance.
  • FIG. 1 is a perspective view of a preferred form of the invention.
  • FIG. 2 is an enlarged broken away view of one of the torsion springs.
  • a tongs type self-leveling dis USB having a base frame 10 and a table frame 11.
  • Table frame 11 is spaced above base frame 10 and the two frames are interconnected by tongs 12.
  • the frames are generally rectangular in shape and tongs are provided for each of its sides.
  • a main coiled compression spring 13 is positioned between the frames and acts directly against their central portions to bias the table frame away from the base frame.
  • the table frame 11 is conventionally provided with a table top, the device can be enclosed on its sides, and wheels or castors can be provided on the base frame to make the device portable.
  • the device can also be used in a fixed installation, as in a serving counter.
  • the main spring 13 provides one rate of resistance or travel per unit load.
  • I provide a torsion spring 14 for each of the fourtongs so that the dispenser has from 1 to rates of resistance or travel per unit load.
  • the torsion springs are positioned in the plane of the top frame ll at the corners thereof in a direction perpendicular to their respective tongs.
  • the torsion springs could be positioned at the bottom, or at the top and bottom.
  • the torsion springs have a central coiled part and at their outer opposite ends have integral radially extending arms 14" and 14".
  • the outer arms 14' are aligned with the extremity 12 of one of the arms of the tongs of the table frame so that its arm 14" extends along the table frame part 11'.
  • An L-shaped block 16 is mounted on the table frame part 11' by a winged thumb bolt 17 which passes through a slot 18 formed in table frame part 11'.
  • the block 16 In operation of the device, in order to make torsion spring 14 effective the block 16 is moved to the left when considering FIG. 2, so as to cause the tab 16 of the block to move beneath the arm 14" to prevent it from turning clockwise. After the bolt 17 is tightened the inner end 14" of the torsion spring is releasably connected to the table frame 11 by being trapped between the tab 16' and the overhanging top of the L- shaped part 1 l In order to release the inner end of the torsion spring the bolt 17 is loosened and the block 16 is slid to the right so that the arm 14" clears the tab 16.
  • the invention provides a low cost and uncomplicated multiple rate self-leveling dispenser.
  • the invention can be readily incorporated into existing tong type self-leveling dispensers, and the device can be readily manually adjusted.
  • a self-leveling dispenser comprising a base frame, a table frame positioned above said base frame, a plurality of tongs interconnecting said frames, and a main spring positioned between said frames for biasing said frames away from each other, the improvement of a releasable torsion spring positioned in the plane of one of said frames, one end of said torsion spring being connected to one of said tongs and the other end of said torsion spring being connected to said one frame, wherein said frames are generally rectangular in shape and there are four of said tongs interconnecting the respective sides of said frames, said main spring comprising a coiled spring acting directly against the central portion of said frames; and there arefour of said torsion springs, one for each of said tongs; said torsion springs comprising coiled springs having integral radially extending arms formed at the opposite outer ends thereof, said torsion springs being positioned in the four corners of said one frame in a direction perpendicular to the plane of its respective tongs and

Abstract

A tongs type self-leveling dispenser having a main compression spring has releasable torsion springs for each of its tongs to provide additional rates of resistance.

Description

United States Patent 1191 111 3,741,512 Olsson June 26, 1973 [5 SELF-LEVELING DISPENSER 2,170,098 8/1939 Stephenson 108/136 2,334,922 11/1943 Gustafson 248/399 [751 Frank East Lyme 2,357,825 9/1944 Hickman et al. 248/399 73] Assignee: AMF Incorporated, white Plains 2,440,096 4/1948 Jury 248/421 N.Y 2,645,538 7/1953 Segal 248/421 3,080,066 3/1963 Berridge et a]. 108/136 [22] Filed: Nov. 4, 1971 3,198,473 8/1965 Holz 248/42! [21] Appl. No.: 195,648
Primary Examiner-Marion Parsons, Jr. [521' U S Cl 248/399 248/421 108/136 Attorney-George W. Price and Walter Lewis 312/319 [51] Int. Cl'...... A47b 9/00 58 Field of Search 248/373, 386, 399, [571 ABSTRACT 248/421; 211/49 D; 108/136 145; 312/319 I A tongs type selfleveling dispenser having a main compression spring has releasable torsion springs for each 6 References C'ted of its tongs to provide additional rates of resistance. UNITED STATES PATENTS 655,598 8/1900 Borchert .L 248/399 1 Claim, 2 Drawing Figures PATENTEDJUIZS ma 3.?41512 sum & w 2
INVENTOR NK C. SSON ATTOR PATENIEnJum mm 3.741. 512
SHEEF 2 0F 2 INVENTOR FRANK C. OLSSON BY "ATTORNEY SELF-LEVELING DISPENSER This invention relates to a self-leveling dispenser, and more particularly, to a tongs type self-leveling dispenser provided with releasable torsion springs for each of its tongs to provide additional rates of resistance.
In the drawings,
FIG. 1 is a perspective view of a preferred form of the invention, and
FIG. 2 is an enlarged broken away view of one of the torsion springs.
In the drawings is shown a tongs type self-leveling dis penser having a base frame 10 and a table frame 11. Table frame 11 is spaced above base frame 10 and the two frames are interconnected by tongs 12. The frames are generally rectangular in shape and tongs are provided for each of its sides.
A main coiled compression spring 13 is positioned between the frames and acts directly against their central portions to bias the table frame away from the base frame.
As will be obvious to those skilled in the art, the table frame 11 is conventionally provided with a table top, the device can be enclosed on its sides, and wheels or castors can be provided on the base frame to make the device portable. However, the device can also be used in a fixed installation, as in a serving counter.
The main spring 13 provides one rate of resistance or travel per unit load. In my invention I provide a torsion spring 14 for each of the fourtongs so that the dispenser has from 1 to rates of resistance or travel per unit load.
As shown in FIG. 1, the torsion springs are positioned in the plane of the top frame ll at the corners thereof in a direction perpendicular to their respective tongs. However, it should be appreciated that the torsion springs could be positioned at the bottom, or at the top and bottom.
The torsion springs have a central coiled part and at their outer opposite ends have integral radially extending arms 14" and 14". The outer arms 14' are aligned with the extremity 12 of one of the arms of the tongs of the table frame so that its arm 14" extends along the table frame part 11'. An L-shaped block 16 is mounted on the table frame part 11' by a winged thumb bolt 17 which passes through a slot 18 formed in table frame part 11'.
In operation of the device, in order to make torsion spring 14 effective the block 16 is moved to the left when considering FIG. 2, so as to cause the tab 16 of the block to move beneath the arm 14" to prevent it from turning clockwise. After the bolt 17 is tightened the inner end 14" of the torsion spring is releasably connected to the table frame 11 by being trapped between the tab 16' and the overhanging top of the L- shaped part 1 l In order to release the inner end of the torsion spring the bolt 17 is loosened and the block 16 is slid to the right so that the arm 14" clears the tab 16.
It will now be seen that the invention provides a low cost and uncomplicated multiple rate self-leveling dispenser. The invention can be readily incorporated into existing tong type self-leveling dispensers, and the device can be readily manually adjusted.
What is claimed as new and desired to be secured by Letters Patent of the United States is:
1. In a self-leveling dispenser comprising a base frame, a table frame positioned above said base frame, a plurality of tongs interconnecting said frames, and a main spring positioned between said frames for biasing said frames away from each other, the improvement of a releasable torsion spring positioned in the plane of one of said frames, one end of said torsion spring being connected to one of said tongs and the other end of said torsion spring being connected to said one frame, wherein said frames are generally rectangular in shape and there are four of said tongs interconnecting the respective sides of said frames, said main spring comprising a coiled spring acting directly against the central portion of said frames; and there arefour of said torsion springs, one for each of said tongs; said torsion springs comprising coiled springs having integral radially extending arms formed at the opposite outer ends thereof, said torsion springs being positioned in the four corners of said one frame in a direction perpendicular to the plane of its respective tongs and having one of its arms fixed to the extremity of its respective tongs and its other arm releasably connected to said one

Claims (1)

1. In a self-leveling dispenser comprising a base frame, a table frame positioned above said base frame, a plurality of tongs interconnecting said frames, and a main spring positioned between said frames for biasing said frames away from each other, the improvement of a releasable torsion spring positioned in the plane of one of said frames, one end of said torsion spring being connected to one of said tongs and the other end of said torsion spring being connected to said one frame, wherein said frames are generally rectangular in shape and there are four of said tongs interconnecting the respective sides of said frames, said main spring comprising a coiled spring acting directly against the central portion of said frames; and there are four of said torsion springs, one for each of said tongs; said torsion springs comprising coiled springs having integral radially extending arms formed at the opposite outer ends thereof, said torsion springs being positioned in the four corners of said one frame in a direction perpendicular to the plane of its respective tongs and having one of its arms fixed to the extremity of its respective tongs and its other arm releasably connected to said one frame.
US00195648A 1971-11-04 1971-11-04 Self-leveling dispenser Expired - Lifetime US3741512A (en)

Applications Claiming Priority (1)

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US19564871A 1971-11-04 1971-11-04

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US3741512A true US3741512A (en) 1973-06-26

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US00195648A Expired - Lifetime US3741512A (en) 1971-11-04 1971-11-04 Self-leveling dispenser

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US (1) US3741512A (en)
JP (1) JPS4854659A (en)
CA (1) CA956359A (en)
CH (1) CH563942A5 (en)
DE (1) DE2253784A1 (en)
FR (1) FR2159924A5 (en)
GB (1) GB1372598A (en)
NL (1) NL7214222A (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032103A (en) * 1976-03-17 1977-06-28 Ehrichs Manufacturing Company Adjustable stand
US4161146A (en) * 1977-08-25 1979-07-17 Avedko B.V. Stacking device
US4433225A (en) * 1983-02-22 1984-02-21 General Instrument Corporation Keytop levelling mechanism
US4497466A (en) * 1981-09-04 1985-02-05 Stein Industrie Spring support device for pipework
US4583707A (en) * 1984-09-18 1986-04-22 Assembled Components Company, Inc. Storage holder for a container
US4589621A (en) * 1984-01-03 1986-05-20 International Business Machines Corporation Ergonomic monitor stand
US4883249A (en) * 1987-02-04 1989-11-28 Garland Thomas A Counterbalancing
US4926760A (en) * 1989-01-27 1990-05-22 Sack Allen J Self leveling tables
US4981215A (en) * 1988-06-08 1991-01-01 Zoran Ilic Flexible device for packing or support
US5488210A (en) * 1992-06-11 1996-01-30 Alps Electric Co., Ltd. Push button switch
US5722513A (en) * 1995-06-20 1998-03-03 Pentalift Equipment Corporation Scissor lift
US5799922A (en) * 1996-10-15 1998-09-01 Seating Technologies, Inc. Low profile seat suspension
US20110309228A1 (en) * 2010-06-17 2011-12-22 Trinity, Llc Product-Lifting Display and Merchandising System
US20120223540A1 (en) * 2011-03-01 2012-09-06 L&W Engineering, Inc. Recreational Vehicle Lift Mechanism
DE102012020264A1 (en) * 2012-10-12 2014-04-17 EXPERT-TÜNKERS GmbH Motorized vertically adjustable lifting table, for example for use in the bodywork of the automotive industry
US8944398B1 (en) * 2013-07-11 2015-02-03 Carol D. Miller Portable lift facilitating assembly
US20150345543A1 (en) * 2014-05-28 2015-12-03 Southco, Inc. Device for positioning an object at a user-adjusted postion
US9316282B1 (en) * 2014-05-16 2016-04-19 Angel 7 Industries, Llc Energy absorbing apparatuses, systems and methods of making and using the same
EP3219436A1 (en) 2016-03-19 2017-09-20 Expert-Tünkers GmbH Device for the motorized rotating a rigid work piece support in opposing directions of rotation
US10965287B2 (en) * 2018-12-20 2021-03-30 Dexin Electronic Ltd. Replaceable key structure
EP3814250A4 (en) * 2018-06-27 2022-03-30 Flex1One A/S An automatic lifting device and use thereof

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427003Y2 (en) * 1975-09-12 1979-09-04
JPS5767500A (en) * 1980-10-11 1982-04-24 Mac Gregor Far East Scissors-lift
FR2594085B1 (en) * 1986-02-11 1991-09-13 Ind Sport MOBILE-BASED TRANSPORT TROLLEY FOR CHANGING LAUNDRY
JPS6322498A (en) * 1986-04-22 1988-01-29 サフエテッチ　プロプライエタリー　リミテッド Freight lifting gear
JPH0729112Y2 (en) * 1986-04-22 1995-07-05 株式会社コムラ製作所 lift device
DE8630748U1 (en) * 1986-11-14 1987-02-19 Francotyp - Postalia Gmbh, 1000 Berlin, De
JP2008222348A (en) * 2007-03-09 2008-09-25 Hiroshima Univ Lifting device
DE102009004301A1 (en) * 2008-07-26 2010-02-04 Der Greifer Ltd. Device for holding components, particularly motor vehicles, particularly for painting, has crossbeam on upper side of frame, where holding unit is projected from crossbeam, and scissor arm is provided for height adjustment of crossbeam

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US655598A (en) * 1899-12-29 1900-08-07 William Borchert Spring-seat.
US2170098A (en) * 1936-09-18 1939-08-22 Om Edwards Co Inc Desk construction
US2334922A (en) * 1941-02-04 1943-11-23 Caterpillar Tractor Co Vehicle seat
US2357825A (en) * 1941-10-16 1944-09-12 Hickman Pneumatic Seat Co Inc Seat
US2440096A (en) * 1945-06-07 1948-04-20 Webster W Jury Extensible support
US2645538A (en) * 1948-12-30 1953-07-14 Wilson Jones Co Posting stand
US3080066A (en) * 1960-11-07 1963-03-05 Joseph Robb & Company Ltd Floating spring loaded riser device
US3198473A (en) * 1962-06-18 1965-08-03 Massey Ferguson Inc Multiple position seat

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US655598A (en) * 1899-12-29 1900-08-07 William Borchert Spring-seat.
US2170098A (en) * 1936-09-18 1939-08-22 Om Edwards Co Inc Desk construction
US2334922A (en) * 1941-02-04 1943-11-23 Caterpillar Tractor Co Vehicle seat
US2357825A (en) * 1941-10-16 1944-09-12 Hickman Pneumatic Seat Co Inc Seat
US2440096A (en) * 1945-06-07 1948-04-20 Webster W Jury Extensible support
US2645538A (en) * 1948-12-30 1953-07-14 Wilson Jones Co Posting stand
US3080066A (en) * 1960-11-07 1963-03-05 Joseph Robb & Company Ltd Floating spring loaded riser device
US3198473A (en) * 1962-06-18 1965-08-03 Massey Ferguson Inc Multiple position seat

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032103A (en) * 1976-03-17 1977-06-28 Ehrichs Manufacturing Company Adjustable stand
US4161146A (en) * 1977-08-25 1979-07-17 Avedko B.V. Stacking device
US4497466A (en) * 1981-09-04 1985-02-05 Stein Industrie Spring support device for pipework
US4433225A (en) * 1983-02-22 1984-02-21 General Instrument Corporation Keytop levelling mechanism
US4589621A (en) * 1984-01-03 1986-05-20 International Business Machines Corporation Ergonomic monitor stand
US4583707A (en) * 1984-09-18 1986-04-22 Assembled Components Company, Inc. Storage holder for a container
US4883249A (en) * 1987-02-04 1989-11-28 Garland Thomas A Counterbalancing
US4981215A (en) * 1988-06-08 1991-01-01 Zoran Ilic Flexible device for packing or support
US4926760A (en) * 1989-01-27 1990-05-22 Sack Allen J Self leveling tables
US5488210A (en) * 1992-06-11 1996-01-30 Alps Electric Co., Ltd. Push button switch
US5722513A (en) * 1995-06-20 1998-03-03 Pentalift Equipment Corporation Scissor lift
US5799922A (en) * 1996-10-15 1998-09-01 Seating Technologies, Inc. Low profile seat suspension
US20110309228A1 (en) * 2010-06-17 2011-12-22 Trinity, Llc Product-Lifting Display and Merchandising System
US20120223540A1 (en) * 2011-03-01 2012-09-06 L&W Engineering, Inc. Recreational Vehicle Lift Mechanism
DE102012020264A1 (en) * 2012-10-12 2014-04-17 EXPERT-TÜNKERS GmbH Motorized vertically adjustable lifting table, for example for use in the bodywork of the automotive industry
DE102012020264B4 (en) * 2012-10-12 2018-11-15 EXPERT-TÜNKERS GmbH Motorized height-adjustable lift table in vertical direction, for use in the bodywork of the automotive industry
US8944398B1 (en) * 2013-07-11 2015-02-03 Carol D. Miller Portable lift facilitating assembly
US9316282B1 (en) * 2014-05-16 2016-04-19 Angel 7 Industries, Llc Energy absorbing apparatuses, systems and methods of making and using the same
US20150345543A1 (en) * 2014-05-28 2015-12-03 Southco, Inc. Device for positioning an object at a user-adjusted postion
US9624967B2 (en) * 2014-05-28 2017-04-18 Southco, Inc. Device for positioning an object at a user-adjusted position
EP3219436A1 (en) 2016-03-19 2017-09-20 Expert-Tünkers GmbH Device for the motorized rotating a rigid work piece support in opposing directions of rotation
EP3814250A4 (en) * 2018-06-27 2022-03-30 Flex1One A/S An automatic lifting device and use thereof
US10965287B2 (en) * 2018-12-20 2021-03-30 Dexin Electronic Ltd. Replaceable key structure

Also Published As

Publication number Publication date
GB1372598A (en) 1974-10-30
CH563942A5 (en) 1975-07-15
CA956359A (en) 1974-10-15
NL7214222A (en) 1973-05-08
JPS4854659A (en) 1973-08-01
DE2253784A1 (en) 1973-05-10
FR2159924A5 (en) 1973-06-22

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AMF WYOTT, INC., 1938 WYOTT DRIVE CHEYENNE, WY. 8

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMF INCORPORATED;REEL/FRAME:004484/0351

Effective date: 19851112

AS Assignment

Owner name: AMERICAN WYOTT CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:EGMC, INC.,;REEL/FRAME:004966/0381

Effective date: 19860612

Owner name: EGMC, INC., A CORP. OF TX

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMF WYOTT, INC., A WY CORP;REEL/FRAME:004760/0288

Effective date: 19860611