|Publication number||US2486764 A|
|Publication date||1 Nov 1949|
|Filing date||24 Dec 1946|
|Priority date||24 Dec 1946|
|Publication number||US 2486764 A, US 2486764A, US-A-2486764, US2486764 A, US2486764A|
|Original Assignee||Rca Corp|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (9), Referenced by (67), Classifications (9)|
|External Links: USPTO, USPTO Assignment, Espacenet|
K. SINGER Nov. 1, 1949 MOUNTING RACK 3 Sheets-Sheet 1 Filed Dec. 24, 1946 V INVENTCR. 1 1/27 qS'm/aae.
Nov. 1, 1949 K. SINGER IIOUNTING RACK Filed Dec. 24, 1946 3 Sheets-Sheet 2 1 10 12 4 L 0 5 MI 6 1! W56 I J4 1; ,7 a z: /b@ iz m GD Q Q o O 0 INVENTOR. Auer J/vase.
Nov. 1, 1949 K. SINGER 2,486,764
MOUNTING RACK Filed Dec. 24, 1946 3 Shee'ts-Sheet 3 I N V EN TOR. Kz/Ar ,J'avsez Patented Nov. 1, 1949 MOUNTING Rack Kurt Singer, North Hollywood, Calii'., assignor to Radio Corporation of America,
a corporation Application December 24, 1946, Serial No. 718,195
3' Claims. 1
This invention relates to mounting racks for equipment units such as electrical apparatus and is particularly suited to the mounting of vacuum tube circuit equipment which may be readily inspected and removed from the rack for repair.
. 'vide a file drawer mounting for an electrical unit 9 It is well-known that the modern type of installation of electrical equipment, such as that employed in broadcasting stations and motion picture studios, is in the form of units arranged in vertical panels or relay racks. These units may be oscillators, audio and high frequency ampliiiers, noise reduction amplifiers and compressors. They may occupy one or more racks positioned adjacent one another depending on the requirements of the installation. To service these units various arrangements have been employed for making the elements of the units and the terminals thereof readily accessible for both inspection and repair. A unit of this general -type is disclosed and claimed inNielson U. 8.
Patent No. 2,185,562 of January 2, 1940. The mounting shown in this patent is hinged whereby the front panel drops forwardly and downwardly to expose the terminals of the various elements in the units. A sliding type of unit is disclosed in U. S. Patent No. 1,527,896 of February 24, 1925, this unit being of the drawer type sliding in and out of a radio cabinet.
This present invention is a mounting construction which is of the drawer type whereby the unit may be easily and quickly withdrawn from the rack for inspection not only of the elements themselves, such as the tubes, condensers and transformers, but also the terminals of these elements by the rotation of the unit to make the wiring side of the unit accessible. Animportant feature of this arrangement is that the unit need not be electrically disconnected during inspection which permits access to the terminals for measurements during operating of the unit. Furthermore, the entire unit may be quickly and readily detached from the panel rack and also replaced as quickly and readily.
The principal object of the invention, therefore, is to facilitate the mounting, dismounting, inspection and repair of apparatus, particularly electrical units.
Another object of the invention is to provide an improved method of and means for mounting electrical units.
A. further object of the invention is to provide an improved mounting construction for electrical units arranged on panel or relay racks.
A still further object of the invention is to prowhich may be readily attached and detached from the panel and rotated for inspection and repair.
Although the novel features which are believed to be characteristic of this invention will be pointed out with particularity in the appended claims, the manner of its organization and the mode of its operation will be better understood by referring to the following description read in conjunction with the accompanying drawings forming a part hereof, in which:
Fig. 1 is a perspective view of the mounting embodying the invention.
Fig. 2 is a plan view of the mounting with the electrical unit in open position.
Fig. 3 is a cross-sectional view taken along the line 3-3 of Fig. 2.
Fig. 3a is a detailed view taken along the line Fig. 4 is an elevational view of the mounting with electrical unit removed.
Figs. 5 and 6 are detailed cross-sectional views of the side runners taken along the lines 5-5 and 6-6 respectively, of Fig. 4. P
Fig. 7 is an elevational view showing the electrical unit in operating position and its position when withdrawn for inspection, and
Fig. 8 is an elevational view showing the electrical unit in rotated position for inspection or repair of the wiring side of the unit.
Referring now to the drawings in which the same numerals identify like elements, a panel or relay rack consists of U-shaped vertical side members 5 and 6. These members may be the standard relay rack uprights which are connected together at the bottom. Attached to the members 5 and 6 by screws 20 is a supporting member 1 having a bottom IS, the member 1 having an opening 8 therein through which an electrical unit I0 is inserted and withdrawn. When the unit I0 is in an operative position a front panel H fits into and closes the opening 8 although it is to be understood that the side members 5 and ,6 may have slots or crossmembers or a combination of both to support the unit and thus eliminate the member 1. To the rear ofthe bottom It! there is attached by screws, such as IS, a pair or terminal blocks l6 and IT. A dust cover may surround the unit if desired although it is not required. It is understood, of course, that similar units and terminal blocks I6 may be provided for other electrical units similar to unit l0 above and below the unit Ill or the unit may be inserted between other units mounted in the old manner.
nected into the unit either above or below the mounting surface of the box chassis 25. Mounted on the front panel ii is a potentiometer or gain control knob 21, a meter 28 and a selector switch 29 for connecting different vacuum tubes to the meter. A pair of pull knobs 30 are used to facilitate sliding the unit into and out of the panel while a pair of cables 3| are connected between the stationary terminal blocks l5 and H and to multiple pin plugs 34 and 35. The plugs 34 and 35 may be removed from their sockets 36 when it is desired to remove the unit Ill from the rack.
As shown in Fig. 7 the elements are so positioned that the cables 3| do-not contact any element as they loop and unloop during movement of the unit into and out of the drawer 9. Other types of units mayhave appropriate control elements on the front panel.
Referring now to Fig. 8, the portion constituting the unit I is shown supported solely on a'pair of pivot pins 31 and 38 on the sides of the chassis 25 (see Fig. 3), the pins being accommodated in the slanting notches 40 of a pair of runners 42 and 43. Thus, with the multiple pin plugs 34 and 35 disconnected from their sockets, the unit It may be lifted from the runners 42 and 43 and placed on a bench for inspection and repair. When the unit I0 is in the position shown in Figs. 1 and 2, the rear corners of the unit are held locked to the runners by beveled catches 44 mounted on right-angled spring members 45 having one end of each spring attached to the sides of chassis 25. The catches 44 are accommodated in openings 46 in the runners 42 and 43. When it decided to release and rotate the unit ID to the position shownin Fig. 8, the springs 45 are pushed inwardly by pressure on buttons 4'! as shown in detail in Fig. 3a.
The unit H) is thus supported by the pair of runners 42 and 43, these runners being movable on intermediate runners and 5|, the intermediate runners 50 and 5| beingmovable on the fixed track members 53 and 54, these latter members being attached to the sides of drawer 9 in any suitable. manner such as by rivets. The runners 42 and 43 are connected together at their rear ends by a bar 52 which may be integral with the runners 42 and 43. This U-shaped construction provides rigidity to the mounting. Thus, the unit ||l may be moved into and out of the panel by means of the knobs 36, the unit being held in its open position by a pair of springs 56 which abut a pair of stops 51. When it is desired to slide the unit into the panel, pressure is brought to bear on the sides of the springs 56 so they will clear the ends of the stops 51. To hold the unit in operative position within the panel springs 60 are adapted to clamp the arrowheads 6| on the front panel.
Although it is understood that any type of easily moving runner system may be employed, a preferred type is illustrated in the drawings wherein the outer double U-shaped fixed tracks 53 and 54 have mounted therein the intermediate double U-shaped runners 5|! and 5| which have rear wheels 62, intermediate wheels 63 and 66 and front wheels 64. The runners 42 and 43,
' thereto (see Figs. 5 and 6).
bearing the notches 46 and thereby supporting the unit II, are mounted within the intermediate runners 56 and II on angle straps 65 attached These straps ride between the wheels of the runners 50 and 5|, the wheels also carryin the runners 50 and 5| within the stationary tracks 53 and 54. In this manner the weight of the unit I0 is supported on wheels and may be easily moved into and out of the panel regardless of its weight.
Latches 69 pivoted at 10 to the intermediate runners 50 and 5| limit the outer position of the intermediate runners while the latches 12 attached to the intermediate runners 50 and 5| hook into latches 13 on the outer runners 42 and 43 to limit the outer position of these runners. The latches 12 are accessible through openings 15 (see Fig. 1) in case it is desired to remove the runners 42 and 43 from the intermediate runners. The latches 69 may be depressed to remove the runners 56 and 5| from the fixed tracks.
The above m'ounting construction, therefore,
' involves the unit l6, and supporting member I,
which has front flanges for attachment to the vertical members 5 and 6, and the fixed track members 53 and 54. These members together with the movable runners 42, 43, 50 and 5| provide the support for the unit being mounted. The front panel I may be used with the type side members as shown or may be incorporated as a part of the side members. This structure thus permits a heavy unit, electrical or otherwise, to be constructed and built separate fromits mounting rack and quickly placed in position by simply placing the pins 31 and 38 in the respective notches of the outer runners 42 and 43 and rotating the unit into the horizontal position so that the latches 44 lock in position. If the unit is electrical, the multiple pin plugs 34 and 35 are then inserted in their respective sockets, the springs 56 depressed and the unit rolled into operative position. By reversing the above procedure the unit is readily removed for inspection and repairs. The unit may simply be withdrawn from the rack and rotated as shown in Fig. 8 wherein the wiring between the elements of the unit is readily available for inspection, testing and any necessary repairs. Although, the unit ID has been shown as an electrical unit, mechanical units could also be mounted in the same manner.
1. A mounting construction forelectrical units, comprising a rack having vertical side members, track members attached to said vertical side members, runners movably mounted on said track members and adapted to be moved in and out of said rack, said runners having notches therein, a rectangularly shaped electrical unit insertable between said side members, said unit having a front panel, electrical control elements on said panel, a fixed terminal block, electrical conductors between said block and, said unit, and pivot means on the sides of said unit substantially mid-way between the ends thereof and positioned in said notches of said runners, the front end of said unit being rotatably upwardly on said pivot means approximately ninety degrees to expose the bottom of said unit while maintaining said conductors connected and said electrical control elements in operative and observable position.
2. A mounting construction in accordance with claim 1, in which said pivot means are positioned between said panel and the center of gravity of said unit, the bottom of said unit being main- 5 6 tained substantially vertical and said panel 8191- UNITED STATES PA'I'ENI'S stantiaiiy horizontal by gravity. m Date 3. A mounting construction in accordance with g Nov. 21' 1911 claim 2, in which means are provided for locking 1:718:37 oberst June 25, 1929 said unit to said runners when said panel is ver- 5 2.031251 Clark Feb. 18. 1936 can? Wsmmed- 2,077,160 Wilson Apr. 13, 193': KURT SINGER 2,130,250 Reed Sept. 13, 1938 2,152,589 Haas et ai. Mar. 28, 1939 REFERENCES CITED 2,173,101 Fielder Sept. 19, 1939 The following references are or record in the 10 2,185,562 Nielsen Jan. 2, 1940 flie 01' this patent: 2,337,159 Fried! Dec. 21, 1943 Certificate of Correction Patent N 0. 2,486,764 November 1, 1949 KURT SINGER It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows:
Column 4, line 66, for the word rotatably read rotatable;
and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.
Signed and sealed this 21st day of February, A. D. 1950 THOMAS F. MURPHY,
Assistant Gommz'qsioner of Patents.
Certificate of Correction Patent No. 2,486,764 November 1, 1949 KURT SINGER It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: -r
Column 4, line 66, for the word rotatably read rotatable;
and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofiice.
Signed and sealed this 21st day of February, A. D. 1950 THOMAS F. MURPHY,
Assistant Gommiqsioner of Patents.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1009141 *||12 May 1911||21 Nov 1911||Casper Faust||Cabinet.|
|US1718374 *||11 Jul 1925||25 Jun 1929||Sonora Phonograph Company Inc||Radio apparatus|
|US2031251 *||12 May 1934||18 Feb 1936||Yawman & Erbe Mfg Co||Drawer stop for cabinets and the like|
|US2077160 *||14 Jul 1934||13 Apr 1937||Bell Telephone Labor Inc||Radio transmitter|
|US2130250 *||1 Aug 1936||13 Sep 1938||Gen Electric||Electric switch gear|
|US2152589 *||14 Nov 1935||28 Mar 1939||Rca Corp||Electrical apparatus|
|US2173101 *||7 Sep 1935||19 Sep 1939||Fiedler Lionel R||Flameproof switchboard|
|US2185562 *||11 Aug 1936||2 Jan 1940||Rca Corp||Mounting for electrical apparatus|
|US2337159 *||22 May 1940||21 Dec 1943||Int Projector Corp||Cabinet|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2566186 *||24 Apr 1947||28 Aug 1951||Gillett Glenn D||Rotatably mounted drawer|
|US2572617 *||11 Feb 1950||23 Oct 1951||Bell Telephone Labor Inc||Maintenance bracket|
|US2572618 *||11 Feb 1950||23 Oct 1951||Bell Telephone Labor Inc||Maintenance bracket|
|US2627554 *||25 Oct 1949||3 Feb 1953||Kellogg Switchboard & Supply||Crossbar system switchboard construction|
|US2636929 *||8 Aug 1950||28 Apr 1953||Reyrolle A & Co Ltd||Housing for electrical components|
|US2650789 *||26 Nov 1949||1 Sep 1953||Bell Telephone Labor Inc||Mounting for telephone apparatus|
|US2655422 *||24 Apr 1951||13 Oct 1953||Grant Pulley & Hardware Corp||Pivotally movable sliding bracket for drawers or shelves and locking means therefor|
|US2670262 *||5 Nov 1952||23 Feb 1954||Westinghouse Air Brake Co||Desk enclosure for automatic recorders|
|US2715560 *||25 May 1954||16 Aug 1955||Felburg Robert A||Housing for electronic chassis|
|US2717188 *||6 Aug 1954||6 Sep 1955||Ferdinand Kuss||Mounting for chassis and the like|
|US2726905 *||17 Jan 1952||13 Dec 1955||Watson Mfg Company Inc||Suspension for a drawer or shelf|
|US2731555 *||5 Oct 1950||17 Jan 1956||Motorola Inc||Radio set housing and mounting|
|US2749201 *||20 Jul 1953||5 Jun 1956||Brubaker Mfg Company Inc||Slide structure|
|US2789024 *||7 Jun 1951||16 Apr 1957||Tele Dynamics Inc||Rack-mount arrangement|
|US2793091 *||2 Jul 1954||21 May 1957||Christians Perce R||Means to facilitate repairs to television and radio receiving sets|
|US2795639 *||16 Nov 1951||11 Jun 1957||Alexander Rawson||Built-in radio refrigerator doors|
|US2820875 *||23 Jun 1954||21 Jan 1958||Ind Electronic Engineering Cor||High frequency dielectric heating apparatus|
|US2852197 *||31 Dec 1953||16 Sep 1958||Bristol Company||Controlling and exhibiting apparatus|
|US2862772 *||17 Dec 1956||2 Dec 1958||Graut Pulley & Hardware Corp||Mounting slide for electronic chassis|
|US2865979 *||14 Oct 1955||23 Dec 1958||Teletype Corp||Extensible cable structure|
|US2898585 *||20 Jul 1956||4 Aug 1959||Stephen Bauman||Easy service tv set|
|US2945989 *||15 Aug 1957||19 Jul 1960||Electronic Eng Co||Plug-in circuit units|
|US2947249 *||6 Feb 1953||2 Aug 1960||Semon Howard W||Mine case and instrument mounting system|
|US2950947 *||17 Aug 1956||30 Aug 1960||Ronzio Anthony R||Chassis|
|US3014160 *||1 Oct 1958||19 Dec 1961||Brogden Morris H||Plug-in chassis assembly|
|US3054022 *||3 Nov 1958||11 Sep 1962||Baker Mfg Co||Motor controls for well pumps|
|US3057672 *||7 Sep 1960||9 Oct 1962||Nippon Electric Co||Cabinet mounting system|
|US3088054 *||4 Dec 1958||30 Apr 1963||Honeywell Regulator Co||Electrical apparatus|
|US3101388 *||29 Feb 1960||20 Aug 1963||Semon Howard W||Mine case and instrument mounting system|
|US3182805 *||11 Apr 1962||11 May 1965||Telephone officemounting plate|
|US3572865 *||21 May 1969||30 Mar 1971||Sylvania Electric Prod||Television chassis slide mounting|
|US3711053 *||18 Nov 1970||16 Jan 1973||Dracon Ind||Telescoping wall mounting bracket for electrical racks|
|US3728662 *||7 Feb 1972||17 Apr 1973||Ampex||Hinged slide mechanism|
|US3782800 *||22 Jun 1972||1 Jan 1974||Stanley Works||Latch mechanism|
|US3967164 *||10 May 1974||29 Jun 1976||Chambers Corporation||Service access control panel having electrical component array, interlock switch and fuse block|
|US4000475 *||19 Jun 1975||28 Dec 1976||Nippon Gakki Seizo Kabushiki Kaisha||Audio amplifier arrangement|
|US4004841 *||12 Jun 1975||25 Jan 1977||Leslie Metal Arts Company, Inc.||Full extension drawer guide|
|US4250865 *||16 Jan 1978||17 Feb 1981||Chambers Corporation||Easy access oven control panel and panel seal|
|US4260208 *||26 Jan 1979||7 Apr 1981||Priam||Manufacturing fixture and support for magnetic disc|
|US4441772 *||11 Feb 1982||10 Apr 1984||Hardware Designers, Inc.||Separable bottom mounted drawer slide|
|US4448465 *||2 Apr 1982||15 May 1984||Ampex Corporation||Electrical cable protector|
|US4487461 *||23 Mar 1983||11 Dec 1984||Vg Instruments Group Limited||Rack mounting system|
|US4742429 *||16 Dec 1986||3 May 1988||Arrendiell Robert W||Bathroom electrical appliance caddy|
|US4919072 *||6 Feb 1989||24 Apr 1990||Nordson Corporation||Device for applying a flowable coating mass|
|US5654870 *||8 Dec 1995||5 Aug 1997||Lucent Technologies Inc.||Battery drawer|
|US7271335||17 Sep 2004||18 Sep 2007||Thomas & Betts International, Inc.||Combination mounting bracket and adapter plate for mounting electrical boxes|
|US7271336||31 Aug 2006||18 Sep 2007||Thomas & Betts International, Inc.||Adjustable mounting bracket assembly for mounting an electrical box|
|US7521631||3 Apr 2007||21 Apr 2009||Thomas & Betts International, Inc.||Far-side support for brackets|
|US7715681||6 Mar 2009||11 May 2010||Adc Telecommunications, Inc.||Rear latch arrangement for sliding drawer|
|US7956285||3 Jul 2008||7 Jun 2011||Cooper Technologies Company||Floor stand for mounting an electrical box|
|US7957624||1 Apr 2010||7 Jun 2011||Adc Telecommunications, Inc.||Rear latch arrangement for sliding drawer|
|US8229268||2 May 2011||24 Jul 2012||Adc Telecommunications, Inc.||Rear latch arrangement for sliding drawer|
|US8727456 *||7 Mar 2012||20 May 2014||Electro-Mechanical Corporation||Draw out control compartment|
|US9095045||22 Feb 2013||28 Jul 2015||Centurylink Intellectual Property Llc||Protective telecommunications enclosure systems and methods|
|US9124956||14 Sep 2012||1 Sep 2015||Qwest Communications International Inc.||Method of producing a high-altitude electromagnetic pulse protected enclosure|
|US20050067180 *||17 Sep 2004||31 Mar 2005||Cong Dinh||Combination mounting bracket and adapter plate for mounting electrical boxes|
|US20050067546 *||17 Sep 2004||31 Mar 2005||Cong Dinh||Mounting bracket for an electrical box|
|US20070084617 *||31 Aug 2006||19 Apr 2007||Thomas & Betts International, Inc.||Adjustable mounting bracket assembly for mounting an electrical box|
|US20110210654 *||1 Sep 2011||Qwest Communications International Inc.||Tippable shelf for telecommunications rack|
|DE3037509A1 *||3 Oct 1980||22 Apr 1982||Siemens Ag||Elektrisches geraet in einschubtechnik|
|DE3043928A1 *||21 Nov 1980||2 Jul 1981||Italtel Spa||Halterung fuer fernmeldeeinrichtungen|
|DE3426102A1 *||16 Jul 1984||16 Jan 1986||Siemens Ag||Holder for a mounting rack|
|DE3506636C1 *||26 Feb 1985||24 Apr 1986||Loh Kg Rittal Werk||Vorrichtung zum seitlichen Fuehren eines in eine Aufnahme einschiebbaren Baugruppentraegers|
|DE8711462U1 *||24 Aug 1987||22 Sep 1988||Siemens Ag, 1000 Berlin Und 8000 Muenchen, De||Title not available|
|EP0271653A2 *||30 Sep 1987||22 Jun 1988||Robert Warren Arrendiell||Bathroom electrical appliance caddy|
|WO1997044992A1 *||17 Apr 1997||27 Nov 1997||Siemon Co||Rack mountable cable distribution enclosure|
|WO2009120535A1 *||17 Mar 2009||1 Oct 2009||Adc Telecommunications, Inc.||Rear latch arrangement for sliding drawer|
|U.S. Classification||361/726, 312/323, 361/724, 174/DIG.900, 174/542|
|Cooperative Classification||H05K7/16, Y10S174/09|