US2535135A - Parting strip assembly for highways and the like - Google Patents

Description

Dec. 26, 1950 J. H. JACOBSON 2,535,135

PARTING STRIP ASSEMBLY FOR HIGHWAYS AND THE LIKE Filed April 17, 1948 Why INVENTOR:

JAMES H. JACOBSON these several points of improvement.

Patented Dec. 26, 1950 UNITED STATES PATENT OFFICE PARTING STRIP ASSEMBLY FOR HIGHWAYS AND THELIKE 6 Claims.

of a highway is usually extended lengthwise of its "center.

It is important that a parting strip assembly for this purpose be produced at small expense, and lend itself to installation with a maximum of dependability and minimum of effort. The parting strip assembly herein to be disclosed embodies Also the improvements herein to be described are concerned in part with the provision of simple and efiective means whereby to grip a tie bar which is extended transversely through the parting strip 'so that the relative positions of these parts will Fig. 2 is a vertical section therethrough taken on line 2-2 of Fig. i;

Fig. 3 is a front elevation, enlarged, of one of the clip plates; and

'Fig. 4 is a fragmentary vertical section, taken on line 44 of Fig. 1.

As shown in Figs. 1 and 2, a subgrade S is prepared to support thereupon a monolithic highway or the like through which, usually longitudinally thereof, is extended a plurality of end-to-end parting strips P which, with the transverse joints serve to define rectangular units into each of which concrete or the like is poured to provide slabs which remain mutually separated. This invention is concerned with the parting strips P and the parts assembled therewith which extend between and cooperate with transverse joints such as those above noted.

Referring now to Figs. 2-4, the parting strip P here shown consists essentially of a sheet of metal, composition or other suitable material. In its center region the strip body II] is offset to provide a short vertical wall I l which is connected thereto by upper and lower oblique walls l2 and 13 which diverge as they approach the strip body to join therewith. In the completed concur-notion, adjacent slabs A and B of concrete or the like will present their confronting faces on opposite sides olthe parting strip so as to be substantially completely separated thereby.

As indicated in Fig. 2, the material of the slab B will occupy the space defined by the oblique walls l2 and i3 and their connecting vertical wall ll, whereby to interlock this slab with the adjacent slab A so that relative vertical movement therehetwcen is prevented. In this construction I use stake pins i l each of channeled cross sectional form with parallel flanges'ili extending opposite sides. Slots is of like contour are provided in the oblique walls i2 and it for reception of the stake pin l i which when passed therethrough will lie adjacent the body of the parting strip.

To maintain each stake pin in assembled relation with the strip, I employ a spring clip plate C a form which closely'corresponds with the outset walls of the strip. It comprises a lower wall 58 and an upper wall l9, both diverged outwardly as best shown in Fig. 4.

an openingil of proper size and shape to receive the channeled stake pin i. A similar tongue 22 and slot 23 are provided in the lower wall id of the plate C. The free end of the upper tongue rill may be bent toward the pin it (See Fig-fl) and likewise the free end or" the lower tongue 22 may be bent away from the pin for resilient engagement therewith. The clip plate isadapted to enter through a slot 25 at the top of the outset wall it so that the upper oblique wall E8 of the clip plate'may lie oppositely of the parting strip to the under side of its oblique wall 52; the clip plate near its lower end is also entered through a slot '26 in the parting strip body close to its juncture with the lower oblique wall i3. The free end portions 2? and 28 of the clip plate at its top and bottom, respectively, may be bent upwardly and downwardly (see Fig. l) so as to closely engage the parting strip upon its side which is opposite that whereon the stake pin is carried. The width of the tongues 2t and 22 is such that each may enter between the two flanges 15 of the stake pin M, the down-turned free edge of each tongue being adapted for pressure engagement therewith.

It will be manifest that a channeled stake pin, when assembled with the parting strip P and retained therewith with a spring clip plate C of the kind described, will tend to remain immovably in place against the body of the strip. The stake pin and. strip are engaged with frictional Struck out from the upper wall it is a tongue 2i] surrounded by pressure by a plurality of spaced means, viz. the tongue 20 and edge of the opening 2| at an upper point, and the tongue 22 and edge of the opening 23 at a lower point. The connection, however, is such that the stake pin may readily be moved endwise of itself relative to the parting strip in response to the impact delivered from a hammer or other percussion instrument.

In the installation of such a strip, the stake pins are preassembled therewith with the aid of the clip plates, and the parting strip is then placed upon the subgrade in position for installation. At this point the stake pins are driven downwardly so that their pointed lower ends 29 will enter into the subgrade, and in this movement the stake pins will advance lengthwise of themselves and transversely of the parting strip to reach their final anchoring positions. After the concrete is poured, a filler F of mastic or other material may be placed between the slabs above the parting strip, if there be a gap at this point.

In the construction herein described the stake pins are movable relative to the parting strip. Because of this fact, the stake pins may initially occupy positions where their pointed lower ends are depressed below the bottom edge of the parting strip. with the parts thus related, the bottom edge of the parting strip may then be rested directly upon the subgrade S following which each stake pin is driven downwardly to become anchored in the subgrade thereby to provide vertical support for the parting strip.

I claim:

1. In combination, a parting strip having its body offset to provide upper and lower oblique walls in connection with a vertical wall therebetween, there being formed two slots opposite each other, one each in the upper and lower oblique walls close to the strip body and other slots extending lengthwise of the strip, one through the offset vertical wall adjacent the upper oblique 'wall and the other through the strip bod adjacent the lower oblique wall, a spring clip plate contoured in general conformity with the offset portion of the strip body and entered through the two slots last named to lie in part adjacent the under face of the upper oblique wall of the strip, in part upon the opposite side of the strip adjacent the ofiset vertical wall, and in part adjacent the under face of the lower oblique wall of the strip, the clip plate being formed therethrough with two spaced slots each adjacent the strip body, a stake pin entered through the two first named slots of the oblique walls and through the two slots of the clip plate to lie adjacent the strip body while disposed transversely of its length, and means integral with the clip engaging the stake pin with pressure at spaced points, one adjacent each slot in the parting strip through which the stake pin is passed.

2. A parting strip according to claim 1 in which the stake pin is cross-sectionally channeled with side flanges extending away from the strip body, and in which the clip plate engages the stake pin at points between the flanges thereof.

3. A parting strip according to claim 1 in which the stake pin is cross-sectionally channeled with side flanges extending away from the strip body, in which the width of the clip plate exceeds that of the stake pin, and in which the clip plate is slotted at upper and lower ends to accommodate the stake pin flanges and also to provide therebetween tongues adapted to enter between the pin flanges for engagement with the body of the stake pin.

4. A parting strip according to claim 1 in which the clip plate width exceeds that of the stake pin, the clip plate being provided at opposite ends with narrow spring tongues opposite the stake pin and in engagement therewith.

5. A parting strip according to claim 1 in which the diverging ends of the clip plate are turned to engage with the strip body upon the side thereof which is opposite that whereupon the stake pin is carried 6. In combination, a parting strip having its body offset to provide converging upper and lower oblique walls in connection with a vertical wall therebetween, the ofiset portion of the parting strip being formed with upper and lower vertically aligned slots adjacent its body and with an intermediate slot, in alignment with the other two slots, formed through the vertical wall of the parting strip between the oblique walls thereof, there being also in the body of the parting strip adjacent the lower slot in its oifset portion a lowermost slot in alignment with the other three slots, a spring clip plate contoured in general conformity with that of the ofiset portion of the strip body entered through the intermediate slot of the parting strip and through the lowermost slot in its body, the clip plate being provided at spaced points adjacent the strip body with slots each having an associated tongue, and a stake pin entered through the upper and lower slots of the parting strip adjacent its body and through the two slots of the clip plate to receive pressure engagement from the tongues thereof, the clip plate at points beyond the tongues being engaged with the parting strip body upon the face thereof which is opposite the stake pin.

JAMES H. JACOBSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS

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