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Publication numberUS2658241 A
Publication typeGrant
Publication dateNov 10, 1953
Filing dateJul 10, 1950
Priority dateJul 10, 1950
Publication numberUS 2658241 A, US 2658241A, US-A-2658241, US2658241 A, US2658241A
InventorsHoughton Dale B, Houghton Jr Dale B
Original AssigneeHoughton Dale B, Houghton Jr Dale B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 2658241 A
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Description  (OCR text may contain errors)

Nov. 10, 1953 o. B. HOUGHTON, JR., Emu.-

BRIDGING Filed July 10, 1950 IIII IIIIIIIIIII Dale 8. Hauglrlomdr. Dale 8. Haugh/on INVENTORS 4 BY wear-3'".

Patented Nov. 10,, 1953 OFFICE- BRIDGING Dale B. Houghton, Jr., Frankfort, and Dale B. Houghton, Beulah, Mich.

Application July 10, 1950, Serial No. 172,924

1 Claim. 1

This invention relates to improvements in structural bridging.

An object of this invention is to provide an improved bridging to be used in building construction between floor and ceiling joists, said bridging construction being extensibly adjustable and being arranged in assembly so as to be sturdy and durable.

A further object of this invention is to provide an improved latching device for use in the bridging as well as an improved guide assembly for the two extensibly arranged members, illustrated as being of channel shape.

Other objects and features of importance will become apparent in following the description of the illustrated form of the invention.

In the drawings:

Figure 1 is a perspective view of the device, portions being broken away in section to illustrate detail of construction;

Figure 2 is a transverse sectional view taken substantially on the line 2-2 of Figure l and in the direction of the arrows, and in enlarged scale;

Figure 3 is a sectional view taken substantially on the line 3-3 of Figure 2 and in the direction of the arrows; and

Figure 4. is a sectional view taken substantially on the line 4-4 of Figure 1 and in the direction of the arrows, this view being in enlarged scale.

In the instant invention, we have endeavored to improve known and existing forms of extensible, metallic bridging to be used wherever found desirable, as in bracing floor or ceiling joists. To this end, there is a pair of telescopic male and female bars or channels I and [2, the male channel being slightly smaller in crosssection than the female channel l2. The channel I0 is provided with a pair of opposed side walls or legs I4 and it connected by a web or bight portion I8 (Figure 2). The channel I2 has opposed side walls or legs 20 and 22 connected by the web or bight portion 24. The channel In being of slightly smaller size in crosssection is nested in the channel l2 and is capable of sliding through one end thereof, thereby causing the brace to be extensible.

The legs l4 and [-6 are each provided with a substantially louver-shaped dog or stop 26 which is adapted to be disposed in a series of correspondingly shaped recesses 28 in the legs 20 and 22 of the channel [2. The series of recesses 28 in the leg 20 are dished outwardly of said leg '20 and the front wall 30 of each acts as an abutment for t e ront al of he d g 26 so that the necessary stop is provided. Each recess 28 has a crimp 32 which communicates therewith and opens through the upper edge of the leg 20.

The series of recesses 34 which are formed in the leg 22 cooperate with the stop 36 in the leg 14 of the channel l0. Accordingly, the channels Ill and [2 may be slid together in the nested relation as disclosed in Figure 1 until the stops 36 and 26 rest in the two opposed stopforming recesses, one being of the series 28 while the other is of the series 34, so that the effective length of the two channels is arrived at. The dogs 26 and 36 may be forced between the walls of the female member l2 for engagement in the desired depressions 28 and 34, respectively, or for disengagement therefrom through the channels 32.

For the specific construction of the recesses, attention is invited to Figure 3 which shows that they are pressed in the metal of the legs of the channels and that the metal is sheared so as to provide a more effective stop.

A vertically rising guide 40 is formed in the web 24, while a similarly shaped guide 42 is formed in the web l8. These guides are disposed in contacting relationship with each other to interlock the channels at the webs thereof. A screw or nail receiving opening or aperture 44 is formed in the guide 42 (Figure 1) so as to hold the bridging in place properly. The ends 46 and 48' of each channel are beveled to fit properly against the rafters and floor of a buildmg.

In order to help lock the inner channel l0 within the outer channel I2, guiding protuberances or guides 4-6 and 48 are punched or pressed into the legs 20 and 22 and are adapted to form a means of prescribing the movement of the inner channel with respect to the outer channel. The upper edges of the legs I 4 and I6 are adapted to slide on the lower surface of each guide.

In operation, the necessary length of the bridging is selected by sliding the inner channel in the outer channel with the stop members 26 riding over the various stop recesses 28 and 30. When the desired length of the composite device is obtained, the bridging is simply nailed or screwed in place.

Having described the claimed as new is:

A bridging unit comprising a pair of telescopically adjustable bars of substantially U-shaped cross-section, the female bar including a lonitudinal guide rib in its bight portion and further including longitudinally spaced, outwardly invention, what is pressed substantially louver-shaped projections defining depressions in its opposed side walls spaced from the free longitudinal edges thereof, said female bar still further having channels in said side walls extending from the depressions to said longitudinal edges, substantially louver-shaped dogs struck out from the side walls of the male section and engageable selectively in and disengageable from the depressions through the channels for releasably securing the bars in adjusted position, said male section having a longitudinal groove in its bight portion slidably accommodating the rib, and guides struck inwardly from said side walls of said 1e- Number 4 male bar adjacent one end thereof and engaged with the longitudinal edges 0! the male bar for slidably securing same in said one end of the female bar.


References Cited in the file of this patent UNITED STATES PATENTS Name Date 1,245,354 Kirsch Nov. 6, 1917 2,247,024 Hurley June 24, 1941

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1245354 *Jul 24, 1916Nov 6, 1917Kirsch Mfg CoCurtain-rod.
US2247024 *Apr 30, 1940Jun 24, 1941Hurley Earl HPortable support
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2803045 *Nov 12, 1953Aug 20, 1957Horner Harlow EJoist brace
US2990921 *Jun 18, 1957Jul 4, 1961Wilde William VSuspended ceiling grid construction
US3009183 *Feb 28, 1956Nov 21, 1961Lay Carlton EVariable length portable ramp
US3077009 *Jan 9, 1956Feb 12, 1963Herman O McpheetersBracing
US3197823 *Dec 17, 1962Aug 3, 1965Ennis James WClip for securing door jambs
US3221466 *Feb 13, 1964Dec 7, 1965Donn Prod IncDual purpose interlocking beam connectors
US3284103 *Mar 19, 1965Nov 8, 1966Falk CorpTorque arm
US3399916 *Nov 7, 1966Sep 3, 1968John Ensor ArthurInterlocking building elements
US3451182 *Oct 4, 1965Jun 24, 1969Lodrick Lawrence EdwardCollapsible poles
US3466072 *Dec 9, 1966Sep 9, 1969Andrews Harold JohnBuilding constructions and fasteners therefor
US4018020 *Apr 16, 1975Apr 19, 1977Roblin Industries, Inc.Modular wall construction
US4038710 *Nov 26, 1975Aug 2, 1977Rusco Industries, Inc.Cross rail and support for bed frames
US4717101 *Dec 9, 1986Jan 5, 1988Harrod Andrew SAdjustable backing board bracket
US5228251 *Jan 16, 1992Jul 20, 1993Modern Technology Corp.Extendable pole
US6076788 *Jun 22, 1998Jun 20, 2000Cooper IndustriesReinforced hanger bar
US6308591Sep 2, 1999Oct 30, 2001The Boler CompanyControl rod
US6378349Mar 2, 2001Apr 30, 2002Billy B. WaldropTool and use thereof for forming a sheet metal tube end
US6516993 *Sep 27, 2001Feb 11, 2003The Boler Company.Control rod
US7047703Apr 18, 2003May 23, 2006Waldrop Billy BA cylinder having a plurality of contiguous sidewalls, terminal ends with a coiled spiral, providing high strength at its ends; building construction
US7673841Mar 25, 2005Mar 9, 2010Cooper Technologies CompanyHangar bar for recessed luminaires with integral nail
US7735795May 19, 2008Jun 15, 2010Cooper Technologies CompanyHangar bar for recessed luminaires with integral nail
US8240630Apr 28, 2010Aug 14, 2012Cooper Technologies CompanyHanger bar for recessed luminaires with integral nail
US8622361Jul 27, 2012Jan 7, 2014Cooper Technologies CompanyHanger bar for recessed luminaires with integral nail
US20130161468 *Dec 22, 2011Jun 27, 2013King Slide Technology Co., Ltd.Support device for bracket and rail of slide assembly
EP0351243A1 *Jul 14, 1989Jan 17, 1990Kentek LimitedAn extendible structural beam
U.S. Classification52/632
International ClassificationE04C3/00
Cooperative ClassificationE04C3/005
European ClassificationE04C3/00B