US1639516A

US1639516A - Shoring device

Info

Publication number: US1639516A
Application number: US29812A
Authority: US
Inventors: Ernest J Langham
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-05-12
Filing date: 1925-05-12
Publication date: 1927-08-16
Anticipated expiration: 1944-08-16

Description

Filed May 12 1925 2 Sheets-Sheer. 1

ZJZWM 1927" E. J. LANGHAM SHORING DEVICE Patented Aug. 16, 1927s I i w manner a. LANGHAMZ, or Jornvsrown, PENNSYLVANIA.

SHORING DEVICE.

Application filed ma 12, 1925. seriarm. 29,812.

The principal object of this invention is sunk recess 8 being provided at the back to provide a novel and improved shoring of the section for the correspondingly shaped device including means whereby the device head 9 of said bolt. A locking member 10 may be collapsed for removal and re-use at also is provided with a central opening 11 5 a different point. for the bolt 7, and this member preferably Another object of the invention is to prois no greater in width than the smaller side vide an extremely durable and easily manuof the wedge-shaped intermediate member 4, factured shoring device particularly adaptand the member 10'further is preferably taed for use in mines for supporting the ceilperedoutwardly so that in one position it 10 ing during excavating operations, the deconstitutes in effect aprolongation of the vice having means facilitating its removal said wedge 4, as illustrated in Fig. 1. The after the mining operation has been commember 10 further is of greater length than pleted for use in further operations width so that when turned so as to lie lonll'n the attached drawings: gitudinally of the assembled post, as shown m Figure 1 is a side elevation of a device in Fig. 1, it overlies the top and bottom made in accordance with my invention; sections, and thereby, when the nut 12is Fig. 2 is a view in perspective of one of tightened in back of the member, prevents e main parts of the device; withdrawal of the intermediate section. Fig. 3 is a view in perspective of the in- With this construction, it will be apparent cerrnediate or wedge section; that the bolt 7 also provides, by turning of Fig. 4 is a detached perspective of the the nut 12, for forcing the intermediate bolt or holding means forthe intermediate wedge-shaped member 4 between the outer section, and

sections

1 and 3 whereby the latter are Fig. 5 is a view in perspective of the bearforced apart. 25 ing'plate. It is preferable-to tie all the elements of With reference to the drawings, the device the shoring post together when not in use, comprises a base a. section 1 flanged at the in order that none of the parts will be missbottom to provide a suitable'base 2 and a ing when it is desired to r e-assemble the like top section 3 similarly flanged atthe shoring post; for this purpose the sections 1 38 top to provide a suitable extended bearin and 3 are each provided at each of their surface at that end. The upper end of the sides with an eye bolt 15 and 16 respectivebottom section Land the lower end of the ly, to which are connected the opposite ends upper section 3 are oppositely inclined, as of a chain 17. The intermediate section 4 clearly illustrated, and an intermediate is provided at each side with an elongated r wedge-shaped member 4 is provided for ineye 18 through which the chain 17 passes. sertion between the bottom and top sections. The bolt 7 remains in the intermediate secand adapted to form with said sections a tion i and the locking element 10 and nut substantially straight-sided post having the 12 remain on the bolt'7; thus all the elements aforedesoribed flanges at top and bottom. of the shoring post are retained in a group.

40 As clearly illustrated, both the top and In setting up this device, the small end of 95 lowersections are provided on their inclined the intermediate section 4 is inserted be- 7 "aces with a central .channel or groove 5 of tween the

sections

1 and 3, with the locking uniform depth, said channel extending from member 10 turned horizontally and having one side of the section to the other, and its tapered sides contiguous with the tapered 6, 6-, on the opposite inclined faces of the positioned adjacent thefront'or narrow edge intermediate section4. As will be apparent, thereof when it is inserted between the elethese'coacting tongues and grooves prevent

ments

1 and 3, and when the member 10 is transverse displacement of the intermediate turned into the position illustrated in Fig.

section with respect to the others. 1, the nut 12 is turned inwardly on the belt In order tov secure the wedge-shaped inter- 7 to thereby force the intermediate section mediate section 4 in the assembled position, between the others and to spread thel'a'tter.

as shown in the drawings, I provide a. bolt Where the device is employed to shore the 7 which extends completely through the inroof of a mine digging, the flange 2 may rest 55 termediate section 4, a rectangular counterupon the floor or upon any suitable pedestal no these channels 5 form guideways for tongues sides of the section 4, the element 10 being ,100,

built up on the floor and the upper end brought to bear against the roof or against beams underlying the roof. The nut 12 is -The wedge-shaped intermediate part may then be easily displaced and the device removedvfor a further operation.

Obviously there may be considerable modification without departure from the essential features of the invention.

I claim: I

1. A shoring device comprising upper and lower sections having oppositely inclined adjacent ends, a substantially wedge-shaped intermediate element adapted for insertion between the upper and lower sections and to form therewith a rigid post, and means ineluding a bolt extending through said intermediate section and'supporting a member at the narrow edge of the latter adapted to be passed between the upper and lower sections when in one position and when turned at right angles thereto to overlap the said upper and lower sections for detachably retaining the intermediate section in position between the said upper and lower sections.

2. A shoring device comprising upper and lower sections having their adjacent faces oppositely inclined, an intermediate substant'a ly wedge-shaped section adapted for insertion between the said upper and lower sections to form therewith a rigid post, a

retaining bolt extending through said intermediate section and having at the narrow side of said section a retaining member whose width is no greater than the width of the said narrow end of'the intermediate section when in a position adapted .for passage therewith between said upper and lower Seutions and whose length'is sufficient to overlap the upper and lower sections when in a position longitudinally of the post, and a nut on the bolt adapted to bear against said member to retain the intermediate section in position between the upper and lower sections.

3. A shoring device comprising upper and lower sections having their adjacent faces op ositely inclined, an intermediate substantia ly wedge-shaped member adapted for insertion between the inclined faces of the upper and lower sections to form with the latter a rigid. post, a bolt extending through the intermediate section from the small side to the large and supporting on said small side a member whose maximum width is no greater than the width of the small side of said wedge-shaped intermediate section, said member being tapered outwardly in conformity to the taper of said wedge-shaped section so as to constitute in effect an extension of the latter for passage therewith between said upper and lower section, and said member also being of suflicient length to overlap the upper and lower sections when in a position longitudinally of the device. and a nut on said bolt adapted to bear against the said member to retain the intermediate section in position between the others.

4. A shoring device comprising upper and lower sections having their adjacent faces op ositely inclined, an intermediate substantia ly wedge-shaped member adapted for insertion between the inclined faces of the upper and lower sections to form with the latter a rigid post, a bolt extending through the intermediate section from the small side to the large and supporting on said small side a member whose maximum width is no greater than the width of the small side of said wedge-shaped intermediate section, said member being tapered' outwardly in conformity to the taper of said wedge-shaped section so as to constitute in effect an extension of the latter forpassage therewith between said upper and lower sections, and said member also being of sufficient length to overlap the upper and lower sections when in a p 'tion longitudinally of the device, and a n t on said bolt adapted to bear against th said member to retain the intermediate ection in position between the others nd means for tying all the elements of'the shoring device together when saidv is not 1n use.

shoring device ERNEST,- J. LANGHAM.