March 19, 1929.
`
`F. A. DAVIDSON
`ADJUSTABLE COUPLING MEANS
`
`1,706,215
`
`Original Filed Jan. 26, 1926
`
`2 Sheets-Sheet
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`1
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`Yl \
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`y*
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`Inventor
`lreadericaDavidson
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`Petitioner Ensign
`Exhibit 1047 - Page 1 of 5
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`Petitioner Ensign
`Exhibit 1047 - Page 1 of 5
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`
`
`

`

`ADJUSTABLE COUPLING MEANS
`
`Original Filed Jan. 26, 1926
`
`2 Sheets-Sheet
`
`2
`
`March 19, 1929.
`
`F. A. DAVIDSON
`
`1,706,215
`
`
`
`Inventor
`Lredertt A, Davidsor
`
`Petitioner Ensign
`Exhibit 1047 - Page 2 of 5
`
`Petitioner Ensign
`Exhibit 1047 - Page 2 of 5
`
`

`

`Patented Mar. 19, 1929.
`UNITEDSTATES
`
`1,706,215
`PATENT OFFICE.
`
`a Qo
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`-_a
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`FFREDERIC A. DAVIDSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN SAFETY
`DEVICECO., OF NEW YORK, N. Y., A CORPORATION OF NEW YORE.
`. ADJUSTABLE COUPLING MEANS. —
`Original: application filed January 26, -1926, Serial No. 83,805. Divided and this. application filed
`Serial No. 250,968.
`February 1, 1928.
`3, indicate two supporting elements, which
`The invention herein pertains to coupling
`may be tubular or cylindrical, or otherwise
`devices, and particularly to means for ad-
`shaped, in a scaffold or other structure, and
`justably connecting elements thatintersect
`which are to be connected and rigidly held -
`at varying angles. The invention is espe-
`in any desired fixed angular relation.
`5 cially adapted for use with scaffolds and
`The coupling device consistsof two clamps
`similar supporting structures of a framework
`orcoupling sleeves engageable with the sup-
`t
`-
`.
`pe.
`porting elements, each of said clamps in-
`An object of my improvementsis to’ pro-
`cluding a substantially semi-cylindrical sec--
`vide a simplé coupling device with its prin-
`tion 7., -Each section 7 has spaced apart ears
`cipal members permanently bat movably
`8 and 9 at one ec.ze and ears or lugs 10 are
`united and no loose, or separate parts..
`formed upon the opposite edge of each of
`Another object of myinvention is to pro-
`the sections 7.
`,
`vide a coupling device which can be quickly
`The clamps also include each a movable .
`attached and secured firmly in the position
`“section 11 complementary in form or shape
`necessary. to hold the connecting elements
`‘to -the sections 7 and provided upon one of
`rigidly together.
`ce
`‘its-edges with ears or lugs 12 adapted to be
`Thisinvention comprises two clamps for
`assembled with the spaced ears or lugs 10
`engagement with the elementsto be coupled,
`on the sections 7. These ears 10 and 12 are
`‘said clamps having adjacent connected sec-:
`apertured to receive the pivot pin 13, where-
`tions to be.located between said elements;
`by the. section 11 of each clampis pivotally
`and a movable section connected to each of
`connected along one of its edges with the sec-
`the first named sections; together with se-
`tion 7 for swinging movementrelative there-
`- guring means for the latter sections, so as to
`’
`to: Upon the opposite longitudinal edge of
`tighten the same upon said elements whereby:
`25
`the pivoted section 11 a laterally projecting
`the device is held fast.
`lug 14 is formed, said lug being slotted or
`I also provide anadjustable connection
`bifurcated as at 15 for the reception of a
`: between the two clamps whereby said clamps
`bolt 16 having one of its ends positioned
`can be readily engaged with. the respective
`between the spaced ears 8 or 9 as the case
`30° elements to be coupled, although the planes
`may be, and loosely engaged for swinging’
`in. which said elements may
`be positioned
`movement upon the pivot pin 17 fixed in said
`may intersect each other at an angle of
`- ears.
`Each of the bolts 16 is threaded to
`greater or less than 90°.
`-
`receive a suitable clamping nut 18, which is
`_.. Further advantages and features of the
`adapted to engage against the outer side of
`improved coupling device, and the form,
`the lug 14 on the adjacent clamping section
`construction and relative arrangement of its
`11 to urge the latter and the opposed section
`several parts will be hereinafter more fully
`set forth, illustrated in the accompanying
`7 of the clamp into tight clamping engage-
`ment upon the opposite sides of one of the
`drawings and subsequently incorporated in
`supporting elements 5 or 6..
`‘the subjoined claims.
`~
`It will be apparentthat a coupling device
`_ The drawings show several embodiments
`of the above description may be very easily
`of the invention, and the same reference
`and quickly applied and adjusted so as to
`characters designate the same parts through-
`rigidly conneéct or couple the members 5 and
`out the several views,—
`6 positioned at an angle to each other, and
`Figure 1 is a perspective view showing one
`‘positively hold the same against relative
`form of my improved coupling device as ap-
`movement. Thus, it is only necessary, when
`plied in use;
`the two elements 5 and 6 are set, to engage
`Figure 2 is a top view thereof; a
`the sections 7 of the two clamps which are
`Figure 3 shows
`how another form of cou-
`open, with the opposedsides of said elements
`‘plingcan have the axes of the two principal
`at the point of
`intersection. The pivoted
`parts arranged in different angular relation
`clamp
`sections 11 are then swung to closed
`to each other. This case is a division of my
`position against the opposite sides of said
`application Ser. No. 83,805, for patent on
`_ elements, the bolts 16 swung inwardly into
`couplingdevices, filed Jan. 26, 1926.
`the slots 15 in the lugs 14. and the nuts 18.
`Reference numerals 5 and 6 on Figs. 2 and-
`
`—
`
`oo0
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`wo5
`
`100
`
`Petitioner Ensign
`Exhibit 1047 - Page 3 of 5
`
`Petitioner Ensign
`Exhibit 1047 - Page 3 of 5
`
`

`

`1,706,215
`
`2 f
`
`a
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`10
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`15
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`2.a
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`3_o
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`40
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`60
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`60
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`65
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`inally adjusted by means of a suitable
`provided at its outer edge with one or more
`short radially extendirig key lugs 35 to en-
`wrench so as to cause the two sections of
`each clamp to exert. the: desired tight fric-
`gage in selected recesses or grooves 36 ar-
`tional binding pressure upon the supporting
`ranged in suitablyspaced relation andin any
`elements. It will be noted that when the de-
`desired number upon the opposed face of
`vice is applied, all of the parts thereof are
`the plate 28.
`In this case, however, it will
`in assembled relation, and it is not neces-
`be seen that the numberof possible adjust-
`sary to carry a large riumber of separate
`ments of the two coupling parts will be lim-
`parts to be successively assembled as the
`ited by the number of the key receiving ©
`device is applied. Therefore, the necessary
`grooves or recesses 36.
`:
`adjustments may be very easily and quickly
`From the foregoing description taken in
`made, and the time consumed in the opera-
`connection with the accompanying drawings,
`tion of securely andeffectively coupling the
`it is believed that the form, construction and
`two supporting elements 5 and 6 with each
`several advantages of.
`the device will be
`other is thereby reduced to a minimum. One
`clear.
`In each case, it will be appreciated
`of the coupling sleeves has a plate 28 in-
`that the device will have maximum strength
`tegrally formed on oneside of one section
`and durability while at the same time, it is
`. 7 thereof. A similar plate 29 of the same
`of comparatively light weight and. can be
`‘diameter is spaced from one sideof the sec-
`easily handled. and quickly applied to se-
`2Ss
`tion 7 of the other coupling sleeve and at
`curely couple the two elements together.
`I
`diametrically opposite points is integrally
`have referred to certain constructions, which
`connected therewith at its outer edge by the
`I‘ believe to be thoroughly practical, but: it’
`arcuate angular flanges 30.. This plate 29
`will nevertheless be understood that the de-
`is provided with a continuous circularslot
`vice may be susceptible to embodiment
`in
`31, said plate within this slot being directly
`various other. alternative structures and I
`formed upon and integral with the body of
`accordingly reserve the privilege of resort-
`.the section 7 of the coupling sleeve. Bolts 25
`ing to all such legitimate changes in the
`are engaged through openings in the plate
`form, construction and relative arrangemient
`28 and extend: through the slot 31. The
`of the various elements as may:befairly in-
`spaces-indicated at 32 between the parts 30
`corporated within the spirit and scope of
`afford access to the bolt heads which are en-
`the invention as claimed, .
`°
`gaged upon the innerface of the plate 29 at
`I claim:
`opposite sides of the slot 31 as indicated in
`1. A device for coupling’ elements, com-
`Fig. 1 of the drawings. The nuts 26 are
`prising twoclamps each consisting of an
`threaded upon the other ends of said bolts.
`elongated sleeve having relatively movable
`In order to positively prevent rvlative
`sections to embrace one of said elements,
`bolts pivotally connected with one edge of
`turning movement of the two parts of the
`coupling after they have been adjusted, the
`each section intermediate its ends, the other
`face of the plate 28 is provided at its outer
`section of each sleeve being provided with a
`edge with a continuous annular series of
`bifurcated lug to receive one of said bolts,
`teeth or serrations 33 while the opposed face
`nuts threaded upon said bolts to cooperate
`of the outer edge portion of the plate 29 is
`with said lugs and urge the latter sections
`provided at diametrically opposite points
`into clamping engagement upon the respec-
`with a series of similar tceth or serrations
`tive elements, a plate rigidly secured to a
`- 45
`34 to interlock with the teeth 33 when the
`110
`section of each clamp, and means for «d-
`nuts 26 are tightened on the bolts 25..It
`justably securing said plates together.
`will be apparent that by reason of this in-
`2. A device for coupling elements, com-
`terlocking connection,
`the bolts 25 are. re-
`prising two clamps each consisting of an
`hevedof strains which might occur from
`elongated sleeve having relatively movable
`the tendency of the two parts of the cou-
`sections to embrace one of said elements,
`pling to rotate under pressure in relatively
`plates on adjacent sections of said sleeves,
`opposite directions.
`bolts pivotally connected with one edge of
`These plates 28 and 29 provide bearing
`each section intermediate its ends, the other
`parts for the two clamps or sleeves and.ad-
`section of each sleeve being provided with
`mit angular adjustment of the sleeves rela-
`a bifurcated lug to receive one of said bolts,
`tive to each other, and the teeth 83 and 34
`nuts threaded upon said bolts to cooperate
`provide the interlocking -portions of
`the
`with said lugs and urge the latter sections
`bearing parts. The bolts 25 provide means
`into clamping engagement upon the respec-
`for rigidly securing the sleeves from dis-
`tive elements, one of said plates having a
`placement when adjusted and retain the
`slot therein, and arcuate flanges on opposite
`_ bearing parts in interlocked engagement
`edges, and bolts passing through said plate
`with each other.
`_ between the flanges to secure the other plate
`In Fig. 1 I have showna slight modifica-
`thereto, but permitting adjustment of said
`tion of this interlocking mean: for the cou-
`plates to vary the relative positions of the
`pling parts, wherein the plate 29 may be
`clamps.
`
`100°
`
`0my
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`90
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`105
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`115
`
`120
`
`125
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`130
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`Petitioner Ensign
`Exhibit 1047 - Page 4 of 5
`
`Petitioner Ensign
`Exhibit 1047 - Page 4 of 5
`
`

`

`3. A device for coupling elements, com-
`prising two clamps each consisting of an
`elongated sleeve having relatively movable
`sections, to embrace one of said elements,
`plates on adjacent sections of said sleeves,
`olts pivotally connected with one edge of
`each section intermediate its ends, the other
`section of each sleeve being provided with
`a bifurcated lug to receive one of said bolts,
`nuts threaded upon said bolts to cooperate
`with said lugs and urge the lattersleeve sec-
`tions into clamping engagement upon the
`respective elements, one of said plates hav-
`ing a slot therein, and arcuate flanges on
`opposite edges, and bolts passing through
`sald plate between its ends to secure the
`other plate thereto, the plates being adjust-
`able when the bolts are loosened to change.
`the relative position of saidclamps, said
`20
`plates having interengaging teeth to prevent
`relative movement.
`,
`4. A device for coupling elements, com-
`prising two clamps each consisting of an.
`elongated sleeve having relatively movable:
`25.sections to embrace one of said elements,
`. plates on adjacent sections of said sleeves,
`bolts pivotally connected with one edge of
`each section intermediate its ends, the other
`section of each sleeve being provided with
`a bifurcated lug to receive one of said bolts,
`
`30
`
`ot
`
`1 oS
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`15
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`1,706,225
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`3
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`nuts threaded upon said bolts to cooperate
`with said lugs and urge the latter sleeve
`sections into clamping engagement upon the
`respective elements,“one of said plates hay-
`ing a slot
`therein, and arcuate flanges on :
`opposite edges, and bolts passing through
`said plate between its ends to secure the
`other plate thereto, the plates being adjust-
`able when the bolts are loosened to change
`the relative position of said clamps, one of
`said plates having a projection and
`the other
`one or more recesses to receive same.
`in
`5. A device for coupling together
`crossed angularly adjusted positions two.
`members, comprising two clamps one for
`each member, each clamp consisting of a’
`sleeve to engage the respective member and
`means for clamping the sleeve on the mem-
`ber, each sleeve having a bearing part for
`‘interlocking contact with the bearing part
`of the other sleeve to admit
`the relative
`angular adjustment and locking of
`the
`sleeves, and means disposed for rigidly se-
`curing said sleeves against relative displace-
`ment and retaining said bearing parts in
`interlocked engagement with each other.
`In testimony that I claim the foregoing
`as my invention, I have signed my name
`hereto.
`
`Fr, A. DAVIDSON.
`
`Petitioner Ensign
`Exhibit 1047 - Page 5 of 5
`
`Petitioner Ensign
`Exhibit 1047 - Page 5 of 5
`
`