Construction of an arch

A frame for retaining one or more masonry slips, the one or more masonry slips each having at least two slots formed on at least two sides thereof, respectively, the frame comprising:

• a supporting structure comprising a back plate, wherein the supporting structure is configured to house two or more masonry slips;
• two or more face rails positioned on the back plate of the supporting structure, wherein each face rail is configured to house at least one masonry slip, each face rail comprising a projection directed away from the back plate of the supporting structure, and a retaining element positioned at the end of the projection and so that the retaining element is approximately parallel to the back plate of the supporting structure, wherein the retaining element is configured to be positioned within one of the two slots formed on the sides of the masonry slip.

An archway comprising:

• a frame for retaining one or more masonry slips, the one or more masonry slips each having at least two slots formed on at least two sides thereof, the frame comprising:
• a supporting structure comprising a back plate, wherein the supporting structure is configured to house two or more masonry slips;
• two or more face rails positioned on the back plate of the supporting structure, wherein each face rail is configured to house at least one masonry slip, each face rail comprising a projection directed away from the back plate of the supporting structure, and a retaining element positioned at the end of the projection and so that the retaining element is approximately parallel to the back plate of the supporting structure, and wherein the retaining element is configured to be positioned within one of the two slots formed on the sides of the masonry slip.

A building comprising:

• a frame for retaining one or more masonry slips, the one or more masonry slips each having at least two slots formed on at least two sides thereof, respectively, the frame comprising:
• a supporting structure comprising a back plate, wherein the supporting structure is configured to house two or more masonry slips;
• two or more face rails positioned on the back plate of the supporting structure, wherein each face rail is configured to house at least one masonry slip, each face rail comprising a projection directed away from the back plate of the supporting structure, and further comprising a retaining element positioned at the end of the projection and so that the retaining element is approximately parallel to the back plate of the supporting structure, and wherein the retaining element is configured to be positioned within one of the two slots formed on the sides of the masonry slip.