1937,130.
`
`P. F. WILLIAMS.
`GROUND PIPE GAP.
`
`, 1908.
`
`Patented Oct. 19, 1909.
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`2 BEBE
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`BET 1.
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`Natus Medical Inc., Natus Neurology Inc.,
`Embla Systems LLC and Embla Systems Ltd.
`Ex. 1003, p. 1
`
`

`
`937,130.
`
`P. I‘. WILLIAMS.
`GROUND PIPE CAP.
`APPLICATION FILED APR.15, 190s.
`
`Paténted 0911191909.
`T97:
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`2 SHEETS-SHEET 2.
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`“wk-5*
`9191/59
`
`Natus Medical Inc., Natus Neurology Inc.,
`Embla Systems LLC and Embla Systems Ltd.
`Ex. 1003, p. 2
`
`

`
`UNITED s'rn'rns PATENT OFFICE,
`
`PAUL F. WILLIAMS, 01E‘ CHICAGO, ILLINOIS.
`
`GROUND-PIPE CAP.
`
`937,130.
`
`Patented Oct. 19, 1909.
`Speci?cation of Letters Patent.
`Application filed April 15, .1908. Serial No. 427,275.
`
`a ground pipe land cap 2, serving as a
`To all whom it may concern: ~
`means for permitting or facilitating the
`Be it known that I, PAUL F. W'ILLIAMB,
`drawing of the pipe 1 into the ground, and
`citizen of the United States, residing at Chi
`a ground wire 3 connected with the ground
`cago, in the county of Cook and State of
`60
`pipe 1 by the ca 2. The pipe 1 is under
`Illinois, have invented a certain new and
`stood to be any Iorm o£ ground pipe, such
`useful Improvement in Ground-Pipe Caps, I
`as an iron or steel as‘ ipe or the like,.and
`of which the following is a full, clear, con- '
`cise, and exact description, reference being
`the cap 2 is made 0 suitable material, pref
`erably cast-iron. The wire 3 is any desired
`had to the accompanying drawings, forming‘
`form of ground wire, such as a bare con
`a. part ofthis speci?cation.
`‘
`My invention relates to ground pipe caps,
`du'ctor. The cap 2 has a suitable exterior
`form, and has a bore substantially the size
`and its object is to provide a simple, prac
`of the pipe 1, so as to ?t snugly upon the
`tical, inexpensive and durable construction
`upper end of said pipe. The cap is provided
`of ground pipe cap, by which a ground pipe
`70
`with a longitudinally extending side groove
`for overhead wire poles can be readily driven
`4, ada ted. to receive and‘ accommodate the
`into the ground, and at the same time the
`groun wire 3. _The lower edge,-or rim, 5,
`connection can be easily and efficiently made
`of the cap 2 is desirably rounded, asshown
`between the ground pipe and a ground wire
`in Figs. 2 and 3, so as to permit the pipe to
`which is to be extended up the pole to afford
`75
`be'worked as the cap descends, and the lower
`a ground connection.
`end of theL groove 4 is slightly ?ared and en-~
`In the arrangement herein set forth for
`lar ed at its lower end, as shown at 6,‘ at
`carrying out my invention, I provide a cap
`which point also the lower edge or
`of the
`of suitable material; as for example, cast
`cap: is shortened ‘or cut away, as shown at
`iron, which is. adapted to ?t the upper end
`7,
`‘igs. 1, 2 and 3, whereby the wire is pre
`of the ground pipe and so permit the cap to
`vented from being torn or out as the cap is
`be hammered to drive the pipe Into the
`driven down upon the pipe. ' The cap is
`ground. The cap is also provided with a
`also desirably provided with a transversely
`space of some sort,capable of accommodating
`extending groove 8 at its upper end, capable
`a wire when the cap is placed upon the top
`of receiving the ground wire 3. Thus the
`of the pipe, and ?tting so closely upon the
`end of the round wire can enter- this groove
`wire that a tight joint or connection 1s made
`8, should t?e'portion of the wire inside the
`between the'wire and pipe. In the accom
`cap be forced upwardly by the drivin of
`panying drawings, I have shown several dif
`the cap upon the ound pipe. This orm
`ferent forms, or types, of cap, capable of
`90
`of cap can be readi y and conveniently made
`bringing about this result. In some of them
`by casting it in the form shown, in which
`I have a strai ht groove for accommodating
`there is a slight side enlargement 9, forming
`the wire, whi e in another form I'have a
`the side groove 4.
`spiral groove for the same. In certain
`In Fig. 6 I have shown a cap 2’ of simple
`forms I have a centrally dis osed plug
`form, having a side clamp member 10, ca
`shaped member, which is capab e of ?tting
`pable of receiving the ground wire 3. This
`into the interior of the ground pipe when
`clamp member 10 is conveniently formed of
`the cap is placed on theend of the same.
`two pieces 10' 10", Fig. 10, having grooves
`Referring more particularly to these ?g
`to form a channel for the ground wire. As
`ures, Figure 1 is an elevation of a ground
`100
`the cap is driven upon the ground pipe, the
`ipe, having a cap embodying my present
`clamping member ecomes tightened, so as
`invention, together with a ground wire, con
`tho ?rmly grasp the wire between its mem
`nected with said pipe by said cap. Fig. 2 is
`a vertical section taken on line 2, 2 in Fig. 1.
`ers.
`In Fig. 7 I have shown a simple form of
`Fig. 3 is a vertical section of a cap removed
`from the pipe. Fig.4 is a top plan, and Fig.
`cap 2_", aving a spiral groove 11, ca able of
`receiying the coiled or spiraled en of the
`5 is a bottom view of the ca . Fi s. 6 7, 8
`ound wire.
`and 9 are vertical sections 0 modi ed orms
`In Fi . 8 I have shown a cap 2"’, having
`of caps, embodying the invention. Fi . 10
`e centra plug member 12, capable of enter
`is a detail of the form of cap shown in 1g. 6.
`mg the upperend of the pipe 1. Que side of
`Referring ?rst to the form of device
`I
`| the cap and the adjacent side of the plug 12
`shown in Figs. 1 to 5 inclusive, I have shown
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`65
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`80
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`85
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`95
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`105
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`110
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`10
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`20
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`25
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`45
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`50
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`55
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`1
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`Natus Medical Inc., Natus Neurology Inc.,
`Embla Systems LLC and Embla Systems Ltd.
`Ex. 1003, p. 3
`
`

`
`937,130
`
`Witnesses:
`A. MILLER BELFIELD,
`C. B. CAMPBELL.
`
`10
`
`15
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`20
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`30
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`are provided with longitudinally extending
`2. Means for connecting a conductor to a
`groove 13 and 14, ca able of receiving the
`pipe or similar device, comprising a cap
`ground wire and ma 'ng tight connection
`adapted to ?t upon and slide down the end
`with same. In Fig. 9 I have shown a quite
`portion ‘of the pipe, and having a space to
`vsimilar construction, except that there is a
`receive the conductor and bind it to the pipe
`center plug 12.’, which is slightly tapering,
`when the ca is slid upon the latter.
`Whereas the plug 12 of the device of Fig. '8
`3. Means Ifjor connecting a conductor to a
`is not taperin .
`pipe or the like, comprising a ‘cap ada ted
`Thus it wil?m seen that by my invention I
`to ?t and slide upon the end portion 0 the
`provide a device which can be applied to the
`pipe or device, and having a groove suiti
`upper end of a ground pipe, and vwhen so
`ciently large to accommodate a loop portion
`applied the pipe can be driven into the
`of the conductor.
`'
`ground without injuring it, and with more
`4. A device of the class speci?ed, compris
`convenience and effectiveness than if the
`ing a cap capable of ?tting upon the upper
`pipe itself were struck. At the same time
`‘end of a ground pipe and having a longi¢
`the connection is made between the ground
`tudinally extending side groove, the lower
`wire and the pipe, and this connection is
`edge of the cap being rounded and being cut
`tight, effective and e?icient; I‘ have shown
`away at the lower end of said side ' move.
`several styles of cap for accomplishing this,
`5. A device of the class speci?efcompris
`and itwill be understood that various other
`ing a cap adapted to ?t and slide upon the
`styles or‘types can be designed andamade
`pipe and having space to accommodate the
`w1thout_ departing from the spirit of the
`conductor to cause such conductor to be
`bound against the pipe when the cap is slid
`invention.
`'
`i
`What I claim is:
`A
`' down over the same, the cap also having a
`1. A device of the class speci?ed, compris
`tongue arranged to ?t within the interior of
`ing a cap capable of ?ttino' upon the upper
`the pipe.
`end of a ground pipe, and having a space or
`Inv witness whereof, I hereunto subscribe
`recess ‘adapted to accommodate-the end por
`my name this tenth day of A ril A. D., 1908.
`tion of a ground wire, whereby the pipe can
`PAUL F. ILLIAMS.
`be driven into the ground, and connection
`made between it and the ground wire at the
`same time.
`
`35
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`40
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`50
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`55
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`G)
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`Natus Medical Inc., Natus Neurology Inc.,
`Embla Systems LLC and Embla Systems Ltd.
`Ex. 1003, p. 4