US1030987A - Extensible electric-light bracket. - Google Patents

Description

F. L. ELLIS.

EXTENSIBLE ELECTRIC LIGHT BRACKET.

APPLICATION FILED JULY 17,1911.

v Patenfied July 2, 1912.

UNITED STATES PATENT OFFICE.

EXTENSIBLE ELECTRIC-LIGHT BRACKET.

Specification of Letters Patent.

Patented July 2, 1912.

Application filed July 17, 1911., Serial No. 638.811.

' -.To all whom it may concern:

Be it known that I, FREDERICK L. .ELLIS, a citizen of the United States, residing at lllilldale, in the county of Hartford and it appertains to make and use the same.

My inventionrelates to'improvements in extensible electric light brackets, and it consists in certain detailsofconstruction to be' morefully set forth in the following specification. 1 I

Referring to the drawings wherein simi lar letters and. figures of reference indicate like parts throughout the several-views:

Figure 1 represents the bracket arms fully extended showing .the second arm reversed so as to fold into the first arm; Fig. 2 is. a side elevation of Fig. 1; Fig. 3 is an enlarged view representingthe arms folded; Fig. 4 is a cross-sectional view on line a a, of Fig. 3; Fig. 5 is a broken modifiedconstruetion; Fig-6 is a cross-sectional View on lineof'Fig. 5; Fig. 7 is an enlarged folded side elevation of the bracket shown at Fig. 5; Fig. 8 is a cross-sectional view on line 0 c of Fig. 7.; Fig. 9 is an enlarged broken view of the first ands-econtl arms of the construction shown at Figs. 1 and 2, and a sectional View of the first joint on line d of Fig. 2;

and Fig. 10 is an enlarged broken View of the second and third arms and the joint connecting them.

In all the views the first arm 1 is alike in construction, being made of sheet metal U- shape in cross-section, and is adapted to be pivotally supported on the pintle 2 of the bench clamp 3, through the medium of the block 4 embraced by the sides of the arm 1 and the retaining bolt 5, said block having a hole (notshown) therethrough adapted to rotatably embrace the pintle. The next arm extension 6 is also of sheet metal U-shape in cross-section similar to the first arm, but

' smaller. The joint connecting these arms the screws 8 journaled therein.

mits a movement of the second arm exten-v comprises the cylindrical. block I embraced by the forked end of the arm 1. This block is rotatably-held within such forked end by ThlS per sion in the direction of arrows 6, Fig. 2. This second arm extension also has a rotativev movement in the block 7, Fig. -9, by means of its folded tubularendb being ournaled in acentral hole extending through said block .at right angles-to the axis on which said block rotates. Theiouter end of'this tubular portion'is headed'over as shown to maintain the arm 6 in working relation with the block 7 The third armextension 9 is a tube whose outer endis rotatably journaled in the tubular end of the forked head 10 shown more clearly at: Fig. 10. The forked end 10 of-this head is embraced by the forked end 6 of the arm 6, each having a rotative movement" on. the bolt 11in the direction of arrows f, Fig. 2, and are held in working relation by the nut 12. The outer endof arm 9; is secured to the lamp socket 13 in the usual manner of bracket of this kind. The cord conductor 14 enters through the opening '15,.FigJ-1, at the rear end of arm 1 andis carried along said arm and through the tubular end 6 of arm 6, and along said latter arm over the grooved pulley 16-, Figs. 1 and 2, "and through the tubular arm extension 9 to the lamp socket. The channel orU-shaped construction of the arms 1 and 6 enables the latter to be folded into the former, as shown at Figs. 3 and 4, and the major part of the small third extension will also lie within the embrace of the other U-shaped' arm eXten-' sions. The outer ends of the arms 1- and 6 cord conductor when'the ar 'nsare extended, and avoid pinching said cord when the arms are folded. of the arm extensions could i be made U- my improved bracket that the first arm extension must be of this construction to -'refolded. The construction above describedis rections, viz.; laterally on the pintle 2, whether the bracket is closed orextended, and at right angles to such lateral movement on t-hepart of the second and third arm extensions, and a rotatable movement-bf said second and third extensions;

The construction shown at Fig.

same U-arm 1, while theextensions 1.9 and 20 are of tubular or pipe construction. The

cut away at 17 and 18 to give-freedom to-the' It will be understood that allshape in cross-section, but it is essential to ceive the other extensions when the device is 5 has the not only capable of movement in several di' first joint piv'otally connecting arm l with arm 19 being the same as that shown at Fig.

will be designated by the same figuresof reference. The arm 19 is journaled to have a rotary movement the same as arm 9 shown 1 in the other views, 21 is a head on the forward end of arm 19 jointed -on the underside'tothe head22 on the arm 20. 23 is a curved tongue projecting from the-interior of the head 21' and overlyin the cord-eonductor to act as a shield an guide to pre-" vent the-cord getting caught between the meeting faces of the joint when the arms are unfolded or extended. To facilitate folding of-the tubular extensions 19 *and The bulge 1, Fig. 1', in the sides of the arm 1 serves a similar purpose for the reception of the second joint of the extension bracket.

I Having thus described my inmtiem what I claim is 1. A bracket of the (inmate!- desgwibed comprising a pivotally sm rte arm U- shape in cross-section, arm extensions haw in a rotatable jointed connection the initial or U-shape arm and adapted to be folded therein. a v

2; A jointed bracket of the-charmer described comprising an arm U-shape ingresssection, tubular sections jointed thereto and adapted to fold therein, and a cord shield between the tubular joint to. protect and guide the cord when the tubular sections are opened.

' In testimony whereof I aflix my signature in presence of twowitnesses. I FREDERICK L. ELLIS. Witnesses: V

Honnnr J. HURD, m

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