US1047267A - Anchor. - Google Patents

Description

E. R. MERRILL.

ANCHOR. APPLIOTION FILED 11111221, 1911.

I Patented Dec. 17., 1,912.

@mm1/Moz @7M Hof/11mg anchored.' Previously these cables have vbeen anchored by means of screw jacks extending room iny which the machine isto be op- ,Which tlie following is a specification, ref- 'bers within the hole will be separated from -view of t-he top section of the expandingl UNrilED srA'rEs rarnnrnicn.

EDWIN R. MERRILL, OF COLUMBUS, OHIO, ASSIGNOR T0 THE JEFFREY MANUFACTUR- ING COMPANY, A CORPORATION OF OHIO.

ANCHOR.

To @Zlio/icm it may concern.' y

Be it known that I, EDWIN R. MERRILL, a citizen of the United vStates, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful ImprovementsV in Anchors, of

erence being had therein to the accompanying drawing.

This invention relates to improvements in anchors and in particular to an expansion type adapted to be placed within a hole and retained therein by pressure exerted on its outer end.

'The device is composed of two members connected at their outer ends by a link, one end of which is formed into a hook. The two membersare placed within a previously formed hole, and when pressure is brought to bearupon the hook portion, the two memeach other thus securely gripping the walls and preventing removal of the anchor.

A furtheradvantage of t-he device is the provision of means by which it may be easily withdrawn from the hole when pressure is removed from the hook.

This anchor is 'desi ed particularly for use with short'wall mining machines where the haul and guide cables must be rigidly from the Hoor to the roof of t-he erated.

This invention provides a device which may be used to anchor the cables securely with much less eX enditure of labor than is necessary in placing the old type of jacks and, furthermore, may... be used in rooms where theroof is too highv to allow they use of such jacks.

Figure l is a partial sectional view through the wall in a room in a coal mine showing the anchor in its expanded position- Fig.' 2 is a side elevation showing theanchor in its 'unex andenl position as it is placed within,y a ho e. Fig. 3 a plan.A

members. Fig. 4 is a plan view .of th( lower section of the expanding members, and Fig. 5 is an end elevation of t-he connecting link and hook.

Specification of Letters Patent.

Application led June 21, 1911.

Referring to the drawing by charactersJ `Pettelite Dec. 1'7, 1912. serial No. 634,520.,

of reference, the numerals 1 and 2 represent, respectively, the upper and lower sectionsvor members, of an anchor connected at their outer ends by fork link 3. The inner ends 4 and 5 cfg-the twomembers when placed together fornil an approximate. cylinder, the juncture of the -two members being an incline. plane asat-{extendin'g from the` upper inner end of the cylinder downward to approximately one-third the length oi the member. The outer ends of the two members are tapered inward in' a horizontal plane from the lower end of the inclined surface to approximate square cross sections at 7 and 8. The two sect-ions are Joined near their outer ends by means of the ,fork link 3 vwhich straddles the twoends and is connected to them' by means of the .'pins 9. The lower end of the fork link is formed into a .hook 10 to which may be attached a cable 11. From this it will be seen that when the ancho-r is placed within a vhole of approximately the same size as the cylinder formed by the two ends 4 and 5 of the members 1 and '2, and a pressure is ex- 1 erted on the.. hook 10 away from the surface in which t-he anchor is inserted, the tendency" will be to swing the outer end of the member 1 about the lower pin 9 :is an axis. This will force the upper sectionl 1 .inward and upward on the inclined plane represented by the` numeral `The consequent` separation vof the two parts will result-in a rigid gripping of the wallsv ot the hole, thus preventing the removal ofthe anchor. Corrugations or ribs 12 are provided to 'further aid thewedsrinfr'action in seciireliv gripping the walls ofthe hole?- To aid in the insertion as well as the removal of the jack from a hole. the end of the lower section 2 -is extended in a. iiub 12% which projects slight] y beyond the fork link 3, the end of the upper section 1 being turnedupward at'right angles to the section thereby forming a. projection 14.

To place the anchor within a hole, the

hook on lthe fork line i3 is swung inwardly, y

i' sisting of two members adapted to extendy* eisting of'two members-'adaptedfto' :extend 4said members.

` sisting' of two members adapted to extend 4the-two sections within the hole and securely retain the anehor within the hole. It

1s evident that the Harder the pull upon.

and release its hold upon the material. A pinch bar or other suitablelever Ais' then inserted between the upturned projection 14 Y'and the wall iri which the anchor is located.

.trated in Fig. 2.

"I .desire torotect by LettersfPatent'.is:--`

within an aperture, alink to which the outerl ends of the members are in an inclined plane.

lthe hook; force. .l

To withdraw the device,rit isrst necessary to remove all tension upon the hook, after which a sharp blow uponthe nub 13 will drive the lower section 1n, consequent-ly allowing` the upper section :to-'drop down the greater `will be thegripping Outward pressure upon this projection will then materially aid in removing the anchor' as it not only tends to draw theentire device out ofthe hole, but also tends tp -force the two 'sectionsl l and 2 togetherfas illus# Having thus described myvinvention, 1. An yanc orof the class described con'-v within an aperture, a liiikr'pivotedfto: the

outer ends of the members-,a hook formed on one end of thel link, the adjaeentsurfacesj' of the inner ends ofthe section p v ber havingan inclined surface. in vengageinclined planes, substantiallyl as set I forth,

2. Anv anchor ofAv the classfdesr'z'rilied conwithin an apertureg'alink towhichA the outer ends ofthe membersarepiVoted, a hookmeansl for separating the 'endsL oltfhelf An anchor of the class described 'coi-isn sisting ofv two members adaptedto extend..

ivoted, a. hook formed on one end of the'jl nk, and the sur-fface of the inner end of one of ythe members which is-adiacent the other member formed 4.' An anchorof the class described con'-l within an aperture, a link to which the outer endsof these menfbe'rs are pivoted, a hook formed on one` end of the link, means for separating the innerends of the members,

1 ber, andi a :lever ivoted to oiie end of and a nub extendingifrom the outer end the member adjacent the hook. v -5. An anchor of the class described con'- Sisting of .two members adapted to extend -1 within an aperture, a link to which the outer ends of the members are. pivoted, a hook formed on one end of the link, means for separating the inner ends of the members, and an upward extension. formed on the end of the member farthest removed from the hook. I,

6. vAn anchor of the class ldescribed consisting of two members adapted to extend v 'within an aperture, a forked link within which thel outer ,ends otl the members are pivted, ya hook formedl on one end of the' link, the surface-of theinner end offene of v the members l,adjacent the other l,member formed in an inclined plane, transverse cor- Arulgfations on the inner ends of the members,' 7o

the` outer end ofthe kmember farthest from the hook-formed upward in anl extension, and the end ofthe' member adiacent the-shook extended in the formi da nub, substantially Vassetjorth. i

7. An ancherofiiie" 'dass dsrib'ea eenin an aperture, the inner part oi one mem-l" mentvwith the inner-end of the other mem .80

members for' sli ing o ne member inward .uponthe other. 1

. '8.jInan anchorjofzthe class described, the .combination of two members adapted to be 85 ,positionedjsubstantially-parallel within an aperture',- the innerfpartof one of the membeis having' an inclined 'surface in engage-v' meritv with the inner end 'ofthe ot1fie1f-1uem `ber, and connectingmeansbetween the mem- 9'0 bers automaticallytendingto cause substan-v v tial-movement'ef one 'of the members lon itudi'nally relative tothe ther, and means' or securing a (leuk-:eteVv be anchored.

.In testimon whereof I affix. my Signatme v WIN R.. VVitnessesj.i

H. B. ALEXANDER, Denier T.,F1sHER.

inpresenee o 'tw lwitnesses. v I n. v MERRLL' Ubpi'es oi this patent may vbeobtanecl for five cents each, by addressing theit Oomnilssioiier o Patente Washing-ton, -D. G.

sisting ofmembers-adaptedto extend. with. i

said j

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