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Publication numberUS752694 A
Publication typeGrant
Publication dateFeb 23, 1904
Filing dateOct 13, 1903
Publication numberUS 752694 A, US 752694A, US-A-752694, US752694 A, US752694A
InventorsJens Gabeiel Feedeik Lund
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Jens gabeiel feedeik lund
US 752694 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

' PATENTED FEB, 23, 1904.

J. G. P. LUND. WALL 0R VAULT. APPLICATION FILED 00'r.13. 1903.

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PATENT OFFICE.

WALL OR VAULT.

SPECIFICATION forming part of Letters Patent No. 752,694, dated February 23, 1904. Application filed October 13, 1903. Serial No. 176,910. (No model.)

To all whom it may concern:

Be it known that I, J ENs GABRIEL FREDRIK LUND, engineer, a citizen of the Kingdom of Norway, and a resident of Drammen, Norway,

. have invented certain new and useful Improvements in Walls or Vaults, of which the following is a specification.

This invention relates to improvements in the construction of arches for walls, vaults, and other arched buildings.

In the construction and erection of vaults or arches with separate artificial stones, (tiles, pressed stones, bricks, &c.,) as hitherto employed, it was necessary either to abstain from the utilization of the strength of the stone against the simultaneous tension, pressure, and cutting effect, or else the-builder was obliged to take refuge in the use of mortar or the cramping together by means of metal order to obtain between the stones a close and firm connection, whereby both the pressure resistance, tension resistance, and cutting resistance of the stones are alike utilized. The invention is illustrated in the accompanying drawings, in which Figure 1 illustrates an arch in side elevation; Fig. 2, a portion thereof in plan. Fig. 3 is a side elevation similar to Fig. 1, showing a modification. Fig. A is a cross-section of the vault. Figs. 5 and 6 illustrate how the practical execution of the close and firm connection of the stones is obtained.

As will be seen from the drawings, the stones 8 are parallelepipedons; but on the two sides which run parallel with the plane of the section they are provided with a wedge-shaped feather or tongue 2 and a corresponding groove or mortise 3. The two other sides form fiat next row, and,'as illustrated in Fig. 4, the said feather 2 of the one block fits directly into the groove 3 of the next block Without interposd mortar or cement, whereby a close and firm connection is obtained. The space 5 may be filled up with any kind of material which is not required to have binding or supporting e fi'ect. It results from this construction that each block is held up, first, by the tongue 2 i of two of the adjacent blocks lying in bond one with another, and, second, by means of the projecting edges 4 of the groove of the blocks abutting thereupon. A block consequently can only fall down if it be broken along the line a b or be cut off along the line 0 d in Fig.

2, or the feathers 2 or the projections 4 must be either cut off or broken by bending. The

' vaulting therefore operates as an elastic arch,

the strength of which depends entirely upon the natural strength of the blocks and the absolute rigid binding, which binding is formed by the engaging tongues and grooves, which firmly engage with each other.

As will be understood, the most important feature of my invention is the firm and close connection of the blocks. In order to obtain this in a secure manner, the tongues 2 and grooves 3 are wedge-shaped, as above mentioned.

Fig. 5 shows a form of construction of the blocks. The construction shown in this figure is based upon the fact that the inclination of the lateral faces of the tongues corresponds accurately to the inclination of the lateral faces of the grooves; further, that the distance it is greater than the distance 72, and that the length Z is greater than Z Hereby the inclined faces must engage each other on all 3 secured. The blocks may also be formed with a double tongue and corresponding double groove, as shown in Fig. 6.

Besides the above-named constructional requirements the following ones must be added:

- Z is greater than Z and k is greater than it.

structed for experimental purposes in this manner are very strong and satisfy every practical requirement.

Havingnow described my invention, What I claim as new, and desire to secure by Letters Patent, is

1. A stone arch composed of a plurality of stones arranged in rows, the stones of each row having interlocking tongues and grooves, breaking joints with the lines of division between each adjoining row, and each row having a tongue extending throughout the length of the row and engaging directly a groove in the adjoining row, the tongues being wedgeshaped and the grooves correspondingly formed in such a manner, that the side surfaces cannot come together and that the top of the tongues cannot reach the bottom of the grooves, the inclination of the lateral faces of the tongues and grooves corresponding whereby the connection between grooves and tongues is secured close and firm without interposed mortar, metal or other material.

2, A stone arch composed of a plurality of stones arranged in rows, the stones of each row having interlocking tongues and grooves,

breaking joints with the lines of division be- 4 tween each adjoining row, and each row having a tongue extending throughout the length of the row and engaging directly a groove in the adjoining row, the adjoining surfaces Zof the blocks being sloped, the tongues of each block being wedge-shaped and the grooves correspondingly formed in such a manner, that the side surfaces cannot come together and that the top of the tongues cannot reach the bottom of the grooves, the inclination of the lateral faces of the tongues and grooves corresponding whereby the connection between grooves and tongues is secured close and firm Without interposed mortar, metal or other material. v

3. A stone arch composed of a plurality of stones arranged in rows, the stones of each row having interlocking tongues and grooves, breaking joints with the lines of division between each adjoining row, and each row having a tongue extending throughout the length of the row and engaging directlya groove in the adjoining row, the tongues being formed as a double wedge and the grooves correspondingly formed, so that the side surfaces cannot come together and that the top of the tongues cannot reach the bottom of the grooves, whereby the connection between grooves and tongues is secured close and firm without interposed mortar, metal or other material.

In testimony whereof I have hereunto affixed my signature, this 17th day of August, 1903, in the presence of two witnesses.

JENS GABRIEL FREDRIK LUND.

Witnesses A. LIEBERKNEoH'r, TH. EDEL.

Referenced by
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US2645115 *Jun 26, 1947Jul 14, 1953William Abeles PaulComposite structural member and in the manufacture thereof
US3529394 *Sep 30, 1968Sep 22, 1970Comstruct IncModular wall corner connector
US5024035 *Apr 28, 1981Jun 18, 1991Insulock CorporationBuilding block and structures formed therefrom
US6497079Nov 14, 2000Dec 24, 2002E.F.P. Floor Products GmbhMechanical panel connection
US6526719Mar 7, 2001Mar 4, 2003E.F.P. Floor Products GmbhMechanical panel connection
US6647689Jul 26, 2002Nov 18, 2003E.F.P. Floor Products GmbhPanel, particularly a flooring panel
US6681820Jan 30, 2002Jan 27, 2004Pergo (Europe) AbMolding substantial part of profile cross-section by milling with milling tool, fine molding undercuts in at least groove of board by broaching utilizing at least one broaching tool
US6682254Sep 13, 2000Jan 27, 2004Pergo (Europe) AbGuiding means at a joint
US7341099 *Jun 6, 2002Mar 11, 2008Showa Denko K.K.Metal plate for producing flat tube, flat tube and process for producing the flat tube
US7380383Jan 12, 2004Jun 3, 2008Pergo (Europe) AbGuiding means at a joint
US7644556 *Nov 15, 2007Jan 12, 2010Correct Building Products, L.L.C.Planking system and method
US7749609Dec 26, 2007Jul 6, 2010Showa Denko K.K.Metal plate for producing flat tube, flat tube and process for producing the flat tube
US7992358Jul 24, 2001Aug 9, 2011Pergo AGGuiding means at a joint
US8312686Jan 22, 2004Nov 20, 2012Pergo (Europe) AbProcess for the manufacturing of joining profiles
US8544233Apr 2, 2012Oct 1, 2013Pergo (Europe) AbBuilding panels
US8578675Jan 28, 2008Nov 12, 2013Pergo (Europe) AbProcess for sealing of a joint
US8615952Dec 13, 2010Dec 31, 2013Pergo (Europe) AbSet of panels comprising retaining profiles with a separate clip and method for inserting the clip
US8627631May 14, 2013Jan 14, 2014Flooring Industries Limited, SarlFloor covering
US8631623Jul 26, 2012Jan 21, 2014Pergo (Europe) AbSet of panels comprising retaining profiles with a separate clip and method for inserting the clip
US8631625May 14, 2013Jan 21, 2014Flooring Industries Limited, SarlFloor covering
US8661762Nov 13, 2012Mar 4, 2014Pergo (Europe) AbFlooring panel or wall panel and use thereof
US8793958Dec 2, 2013Aug 5, 2014Flooring Industries Limited, SarlFloor covering
US8875465Sep 14, 2012Nov 4, 2014Pergo (Europe) AbFlooring panel or wall panel and use thereof
US8904729Jul 1, 2014Dec 9, 2014Flooring Industries Limited, SarlFloor covering
WO1999040273A1 *Feb 1, 1999Aug 12, 1999Ola OlofssonGuiding means at a joint
Classifications
Cooperative ClassificationE04F15/04