US2547532A - Jointed bracket - Google Patents

Jointed bracket Download PDF

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Publication number
US2547532A
US2547532A US99668A US9966849A US2547532A US 2547532 A US2547532 A US 2547532A US 99668 A US99668 A US 99668A US 9966849 A US9966849 A US 9966849A US 2547532 A US2547532 A US 2547532A
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United States
Prior art keywords
arm
leaves
provided
arms
apertures
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Expired - Lifetime
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US99668A
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William A Mendelsohn
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Burton Mfg Company
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Priority to US99668A priority Critical patent/US2547532A/en
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Publication of US2547532A publication Critical patent/US2547532A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES OR APPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES OR APPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/2007Undercarriages with or without wheels comprising means allowing pivoting adjustment
    • F16M11/2021Undercarriages with or without wheels comprising means allowing pivoting adjustment around a horizontal axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14Adjustable mountings
    • F21V21/26Pivoted arms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES OR APPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS
    • F16M2200/00Details of stands or supports
    • F16M2200/04Balancing means
    • F16M2200/044Balancing means for balancing rotational movement of the undercarriage

Description

April 3, 1951 w. A; MENDELSOHN JOINTED BRACKET Filed June 17, 1949 AT TO RNEY Patented Apr. 3, 1951 UNITED STATE OFFiCE JOINTED BRACKET William A. Mendelsohn, Chicago, 111., assignor to Burton Manufacturing Company, Chicago, 111.,

a corporation of Illinois Application June 17, 1949, Serial No. 99,668

bers under ver slight pressure, and at the same time maintain the members securely and firmly in any position to which they have been moved.

A further object of the present invention is to provide tension means for counter-balancing swingable members, which means may be regulated to provide varying degrees of tension, and is hence easily adapted for a marked variety of uses.

An additional object of the present invention is to provide tension means for counter-balancing swingable members which is reliable in operation and is economical in construction.

With the above and other objects in View, my invention resides in the novel features of form, construction, arrangement, and combination of parts presently described and pointed out in the claims.

In the accompanying drawing Figure 1 is a fragmentary perspective view of an adjustable counter-balanced bracket constructed in accordance with and embodying the present invention and adapted for use as a lamp standard;

Figured is a vertical sectional view of the swivel joint;

Figures 3 and 4 are transverse sectional views taken along lines 3-3, l i, respectively, of Figure 2;

Figure 5 is a transverse sectional Vlew'taken along line 5-5 of Figure 3; and a Figure 6 is a transverse sectional view taken along line 5-6 of Figure 2. I

Broadly speaking, the present. invention resides in providing a jointed supporting bracket comprising two arms swingably connected by a joint having self-contained counter-balancing means whereby the jointed arms may be moved by slight or finger tip pressure intoa selected position, and be maintained securely at any position at which movement is stopped.

Referring now in more detail and by reference characters to the accompanying drawing which illustrates a preferred embodiment of the present invention, A designates a supporting bracket comprising two arms I, 2, pivotally connected by a rocking joint 3. At its outer end the arm 2 is bifurcated and provided with a conventional swivel for supporting a vertical leg I provided at its upper end with a lamp B. The arm i is of general rectangular cross section having front and back walls 5, 5', and side walls 5, 6', and being open at its lower end for receiving the reduced upper end l of a connecting member 8 to which it is secured by screws 9 extending through suitable apertures in the walls 5', 6, E.

The connecting member 8 is provided with an internally threaded collar portion it for suitable attachment to a conventional floor standard 3. At their upper ends the side walls 6,5, of the arm 9 project forwardly beyond the plane of the front wall 5 in the formation of somewhat semicircular joint leaves li provided with axially aligned concentric apertures E2, the rearward portions of which are peripherally enlarged to form cam slots 3. The upper transverse margin of the front wall 5 is located just below the point of intersection between the arcuate margin of the leaves i! and the forward vertical margin of the side wall 6 and the back wall 5' at its upper end is curved upwardly and forwardly along the rearwardly presented portion of the arcuate margins of the leaves H, terminating substantia ly above the upper margin of the front wall 5 in the provision of an opening it between the arouate portions of the side walls t, 5, and the top and forward margins of the walls 5, 5', respectively.

Provided within the arm I and extending transversely thereacross is a swivel block 15 supported at its ends by shoulder screws it which project through suitable apertures in the sides 6, G. Centrally provided in the swivel block 55 is a vertical passage it for slidable projection there- ;through of an elongated screw member i8 which extends slidably through a bore is in a spring retainer member is disposed beneath the block I5 and having a diametrally reduced lower portion in the provision of an abutment shoulder 2 i, against which bears the upper end of a compression spring 22. At its lower end the compression spring 22 bearsagainst the shoulder 23 of a sec- .ond spring-retainer member 24 of similar construction to the member 2a but having a central bore 25 internally threaded fo engagement with the threaded lower end 260i the tension screw i8. The upper end of the screw i8 is formed in the provision of an eyelet 2'! through which transversely extends a stop pin 28, the ends of which project through the cam slots it of the apertures 52, respectively. The arm 2, like the arm I, is rectangular in cross section having a top wall 29, a bottom wall 30, and side walls 3|, which are provided at their rearward ends with substantially circular joint leaves 32 spaced apart in such a manner as to snugly overlie and abut facewise against the leaves I I, and are provided with radially inwardly extending arcuate recesses 33 for embracingly fitting around 'andeng'aging the stop pin '28. Forwardly of said recesses 33 the leaves 32 are respectively provided with apertures 34, concentrically aligned with the apertures I2 of the leaves I I.

Positioned in facewise abutment against the outer faces of the leaves H {are cover bea rings 35, 3E. The cover-bearing '35 is provided with a central aperture 37 concentrically aligned with the apertures l2 and the apertures t hand-a oncentric boss 31 adapted to fit snugly within and ride peripherally against the margins of'theaperture l2. The bearing 35 is integrally provided with'a stem 38 projecting inwardlyandconcentrically through said aligned apertures 12, 34, into the aperture -37 the bearing 35 is also provided with a circular boss 38 adaptedtofit snugly within, and rideperipherally against, the margins of the other aperture i2. At its outer'e'ndfthe stem "38 is axially drilled and tapped i for I receivingascrew 39 having a fiared head"*39 which is seated in a countersunkenlargement-swat the outer end of the aperture '37.

En'eircling the stem SB-and bearingat-'its-end against the inner faces of the end portions of the joint leaves 32 isaspacingsleeve member H. The cover-bearings '35, 436, are iirro'vided on their inner faces with-axially aligned-recesses '42,?3,

respectively, for receiving the ends of the-stop :pin 28. Disposed between the joint leaves ll, 32,

-respe'ctively, are phosphor bronze washerstid, 45,

respectively, and suitably wedged in circular recesses 46, '47, provided in the inner faces of the -cove"r be'a'rings 35, 36, respectively, and concentric with-the stem 38, areannulanfelt-wicks 48,

ingelectricity to the-lamp B.

p ation it will I be seen that downward tilting movement may be imparted t'o the adjusting arm 2 by exercising slightpressure-which lifts the stop pin 28 to cause the stem-member 18 to'b'e carried upwardly through the-passage '9 of the member 25 and the bore H of 'theswiva block 25, bringingtheretainer membe z i' therealong to effect compression-of the spring 22. 'Thusit "will be seen that any gravitational effect upon thearm "2 will-be counter-balanced by the spring 22 whereupon the arm 2 will' remain fixed in theselected'position. Conversely,-if thearm 2 is swung upwardly the stop pin '28 will be car- 'ried downwardly and the spring 22 will expand exerting a substantial lifting force so that only very light manual pressure is required. Since the joint leavesl'l'are stationary,'thecam slots 1 -|"3 therein, by restraining engagement with'the stop pin'28, serve tolimit-the' arcthrough which the arm 2 may be moved. Thus, when the stop pin 28 is in contact with the lower end of the cam slots I3 the upper limit of movement of the arm 2 will have been reached, and, correspondingly, the upper end of the cam slots l3 determine the extent of downward movement of the arm 3.

Adjustment-may be made by-threading the retainer member 241 upwardly or downwardly along the end 26 of the screw la in order to regulate "the resisting force of the spring 22 so that it will be just a slight bit less than enough to overcome the friction between the leaves i l, 32 under .the particular load resulting from the weight of the arm 2 'and'thelamp B carried thereby.

It s'hould'be understood that changes and modiifica-tio'ns in the form, construction, arrangement and combination of the several parts of the jointed "brackets may be made and substituted for those herein shown and described without departing from the nature and principle of my invention.

Having thus described my invention what I claim and desire to secure by Letters Patent'is:

1. A jointed bracket comprising a first arm, a second-arm, said arms being rectangularin cross section with the central portion hollow, joint leaves provided on one end ofeach of said first and second arms, bearing members engaging said fjoint leaves of the first and second arms for pivotally securing said arms, an elongated screw swivell mounted in said first arm and integrally their extremities, bearing members engaging said jointleaves of the first'and second arms foripivotally securing said arms, an elongated screw swivelly mounted in said first armand integrally provided at its upper end with a tubular -eye,

shouldereproviding ,members mounted space'dly on said screw, a spring encircling said crew and bearing'at its ends against the shoulder-providing members, a pin rotatably extending through ,said -tubular eye and inserted at its ends through the aligned slots in the first and second arms.

WILLIAM- A. MENDELSOHN.

REFERENCES CITED 'The following references are of record inthe file of this patent:

UNITED STATES PATENTS Number Name Date Re. 17,845 Bosworth Oct. 28,1930 1,642,367 Hand. et al Sept. 13, 1927 1,708,047 ,Bosworth Apr 9, 1 929 2,416,910 Crosby'et al -QMar. 4, 1947

US99668A 1949-06-17 1949-06-17 Jointed bracket Expired - Lifetime US2547532A (en)

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665102A (en) * 1950-06-26 1954-01-05 Albert C Perbal Adjustable bracket structure
US2712425A (en) * 1953-01-07 1955-07-05 Ruemelin Richard Hose support for fume and dust collectors
US2833504A (en) * 1954-05-17 1958-05-06 Gen Lamps Mfg Corp Adjustable weight supporting mechanism
US3856251A (en) * 1972-10-24 1974-12-24 Nouveau Prod Corp Self-compensating extensible beam
FR2355198A1 (en) * 1976-06-18 1978-01-13 Original Hanau Quarzlampen Joint
US4501557A (en) * 1982-07-26 1985-02-26 Kabushiki Kaisha Morita Seisakusho Balancing device for dental arm
US4577819A (en) * 1984-05-14 1986-03-25 Bennett Richard C Self-balancing boom apparatus
US4598601A (en) * 1982-09-17 1986-07-08 Ole Molaug Means for counterbalancing mass in mechanisms such as a robot arm
US4744019A (en) * 1986-09-12 1988-05-10 Jac Jacobsen A/S Counterbalanced arm assembly
US4753128A (en) * 1987-03-09 1988-06-28 Gmf Robotics Corporation Robot with spring pivot balancing mechanism
US4756204A (en) * 1987-02-11 1988-07-12 Cincinnati Milacron Inc. Counterbalance assembly for rotatable robotic arm and the like
US6012821A (en) * 1998-03-30 2000-01-11 Hill-Rom, Inc. Support arm for surgical light apparatus
US6480613B1 (en) * 1999-12-27 2002-11-12 Tony Tzi Chan Choi Loudspeaker stand
DE10237081A1 (en) * 2002-08-09 2004-02-19 Gutjahr Gmbh Mechanism for locking ball of ball-and-socket joint between fixed and mobile sockets comprises e.g. pneumatic cylinder producing force to for torque on ball
US20040188578A1 (en) * 2001-09-14 2004-09-30 Turner Jonathan D Support arm for a surgical theater system
US20040199996A1 (en) * 2003-03-18 2004-10-14 Newkirk David C. Radial arm system for patient care equipment
US20060073713A1 (en) * 2004-09-22 2006-04-06 Chance Richard W Patient flatwall system
US20060151125A1 (en) * 2003-08-05 2006-07-13 Joan Llagostera Forns Articulated arm for awnings, with improved elastic effect
US20070156122A1 (en) * 2005-01-24 2007-07-05 Cooper Thomas G Compact counter balance for robotic surgical systems
US20090314131A1 (en) * 2008-06-23 2009-12-24 Intuitive Surgical, Inc. Spring Counterbalance for Rotating Load
US20100008854A1 (en) * 2008-07-11 2010-01-14 Seung Joo Haam Metal nanocomposite, preparation method and use thereof
US7913341B1 (en) 2009-10-16 2011-03-29 Lift-U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US7913342B1 (en) * 2009-10-16 2011-03-29 Lift-U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US7913343B1 (en) * 2009-10-16 2011-03-29 Lift-U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US20110088177A1 (en) * 2009-10-16 2011-04-21 Lift- U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US20120267497A1 (en) * 2010-06-09 2012-10-25 Innovative Office Products, Inc. Articulating monitor arm with cable and spring
US8834489B2 (en) 2005-01-24 2014-09-16 Intuitive Surgical Operations, Inc. Modular manipulator support for robotic surgery
EP3495709A1 (en) * 2017-12-06 2019-06-12 Syncmold Enterprise Corp. Supporting frame

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642367A (en) * 1925-07-15 1927-09-13 Pelton & Crane Company Dental light
US1708047A (en) * 1926-12-01 1929-04-09 Harry J Bosworth Company Light fixture
USRE17845E (en) * 1930-10-28 Hakey j
US2416910A (en) * 1944-08-11 1947-03-04 Signode Steel Strapping Co Package-binding tool support

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE17845E (en) * 1930-10-28 Hakey j
US1642367A (en) * 1925-07-15 1927-09-13 Pelton & Crane Company Dental light
US1708047A (en) * 1926-12-01 1929-04-09 Harry J Bosworth Company Light fixture
US2416910A (en) * 1944-08-11 1947-03-04 Signode Steel Strapping Co Package-binding tool support

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665102A (en) * 1950-06-26 1954-01-05 Albert C Perbal Adjustable bracket structure
US2712425A (en) * 1953-01-07 1955-07-05 Ruemelin Richard Hose support for fume and dust collectors
US2833504A (en) * 1954-05-17 1958-05-06 Gen Lamps Mfg Corp Adjustable weight supporting mechanism
US3856251A (en) * 1972-10-24 1974-12-24 Nouveau Prod Corp Self-compensating extensible beam
FR2355198A1 (en) * 1976-06-18 1978-01-13 Original Hanau Quarzlampen Joint
US4139883A (en) * 1976-06-18 1979-02-13 Original Hanau Quarzlampen Gmbh Rotary joint, particularly to suspend heavy metal weights from a ceiling, such as an operating room light
US4501557A (en) * 1982-07-26 1985-02-26 Kabushiki Kaisha Morita Seisakusho Balancing device for dental arm
US4598601A (en) * 1982-09-17 1986-07-08 Ole Molaug Means for counterbalancing mass in mechanisms such as a robot arm
US4577819A (en) * 1984-05-14 1986-03-25 Bennett Richard C Self-balancing boom apparatus
US4744019A (en) * 1986-09-12 1988-05-10 Jac Jacobsen A/S Counterbalanced arm assembly
US4756204A (en) * 1987-02-11 1988-07-12 Cincinnati Milacron Inc. Counterbalance assembly for rotatable robotic arm and the like
US4753128A (en) * 1987-03-09 1988-06-28 Gmf Robotics Corporation Robot with spring pivot balancing mechanism
US6012821A (en) * 1998-03-30 2000-01-11 Hill-Rom, Inc. Support arm for surgical light apparatus
US6480613B1 (en) * 1999-12-27 2002-11-12 Tony Tzi Chan Choi Loudspeaker stand
US20040188578A1 (en) * 2001-09-14 2004-09-30 Turner Jonathan D Support arm for a surgical theater system
US7097145B2 (en) 2001-09-14 2006-08-29 Hill-Rom Services, Inc. Support arm for a surgical theater system
DE10237081A1 (en) * 2002-08-09 2004-02-19 Gutjahr Gmbh Mechanism for locking ball of ball-and-socket joint between fixed and mobile sockets comprises e.g. pneumatic cylinder producing force to for torque on ball
DE10237081B4 (en) * 2002-08-09 2004-07-22 Gutjahr Gmbh Ball tensioner with weight relief
US7921489B2 (en) 2003-03-18 2011-04-12 Hill-Rom Services, Inc. Radial arm system for patient care equipment
US7065811B2 (en) 2003-03-18 2006-06-27 Hill-Rom Services, Inc. Radial arm system for patient care equipment
US8336138B2 (en) 2003-03-18 2012-12-25 Hill-Rom Services, Inc. Radial arm system for patient care equipment
US20040199996A1 (en) * 2003-03-18 2004-10-14 Newkirk David C. Radial arm system for patient care equipment
US7254850B2 (en) 2003-03-18 2007-08-14 Hill-Rom Services, Inc. Radial arm system for patient care equipment
US7367376B2 (en) * 2003-08-05 2008-05-06 Llaza, S.A. Articulated arm for awnings, with improved elastic effect
US20060151125A1 (en) * 2003-08-05 2006-07-13 Joan Llagostera Forns Articulated arm for awnings, with improved elastic effect
US8678334B2 (en) 2004-09-22 2014-03-25 Hill-Rom Services, Inc. Patient flatwall system
US8051610B2 (en) 2004-09-22 2011-11-08 Hill-Rom Services, Inc. Patient flatwall system
US20060073713A1 (en) * 2004-09-22 2006-04-06 Chance Richard W Patient flatwall system
US20110023285A1 (en) * 2005-01-24 2011-02-03 Intuitive Surgical Operations, Inc. Methods for compact counter balance arms
US20110023651A1 (en) * 2005-01-24 2011-02-03 Intuitive Surgical Operations, Inc. Apparatus for compact counter balance arms
US9877792B2 (en) 2005-01-24 2018-01-30 Intuitive Surgical Operations, Inc. Compact counter balanced arms
US9291793B2 (en) 2005-01-24 2016-03-22 Intuitive Surgical Operations, Inc. Apparatus for compact counter balance arms
US9023060B2 (en) 2005-01-24 2015-05-05 Intuitive Surgical Operations, Inc. Modular manipulator support for robotic surgery
US7837674B2 (en) 2005-01-24 2010-11-23 Intuitive Surgical Operations, Inc. Compact counter balance for robotic surgical systems
US9968405B2 (en) 2005-01-24 2018-05-15 Intuitive Surgical Operations, Inc. Modular manipulator support for robotic surgery
US20070156122A1 (en) * 2005-01-24 2007-07-05 Cooper Thomas G Compact counter balance for robotic surgical systems
US8500722B2 (en) 2005-01-24 2013-08-06 Intuitive Surgical Operations, Inc. Methods for compact counter balance arms
US8834489B2 (en) 2005-01-24 2014-09-16 Intuitive Surgical Operations, Inc. Modular manipulator support for robotic surgery
US20090314131A1 (en) * 2008-06-23 2009-12-24 Intuitive Surgical, Inc. Spring Counterbalance for Rotating Load
US8220765B2 (en) 2008-06-23 2012-07-17 Intuitive Surgical Operations, Inc. Spring counterbalance for rotating load
US20100008854A1 (en) * 2008-07-11 2010-01-14 Seung Joo Haam Metal nanocomposite, preparation method and use thereof
US20110088175A1 (en) * 2009-10-16 2011-04-21 Lift- U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US20110088177A1 (en) * 2009-10-16 2011-04-21 Lift- U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US20110088174A1 (en) * 2009-10-16 2011-04-21 Lift- U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US20110088176A1 (en) * 2009-10-16 2011-04-21 Lift- U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US7913341B1 (en) 2009-10-16 2011-03-29 Lift-U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US7913342B1 (en) * 2009-10-16 2011-03-29 Lift-U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US7913343B1 (en) * 2009-10-16 2011-03-29 Lift-U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US8020234B2 (en) 2009-10-16 2011-09-20 Lift-U, A Division Of Hogan Mfg., Inc. Counterbalance mechanism for fold out ramp
US8931748B2 (en) * 2010-06-09 2015-01-13 Innovative Office Products, Llc Articulating monitor arm with cable and spring
US20120267497A1 (en) * 2010-06-09 2012-10-25 Innovative Office Products, Inc. Articulating monitor arm with cable and spring
EP3495709A1 (en) * 2017-12-06 2019-06-12 Syncmold Enterprise Corp. Supporting frame

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