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Technical information sheet, job No. 18:

Block-BL-III-11, type job a: Technical information relating to the
setting and anchoring of stone trim in a mullioned window opening-

Job outline sheet, job No. 19:

Block-BL-V, type job 11: Memorial gateway, a combination of brick
and cut stone--

SECTION II.-GENERAL VOCATIONAL INFORMATION

General vocational information relating to the setting of cut-stone trim__
III. Materials of the trade‒‒‒‒‒‒

Cut stone__.

Modern methods of quarrying stone_.

The formation and composition of sedimentary stone..
Sandstones and limestones___

[blocks in formation]

Hand and machine cutting and finishing of stone---
Composition stone and its method of manufacture_.

85

87

[blocks in formation]

2. Drawings showing combinations of two or more struc-
tural steel shapes-----

99

[blocks in formation]

1. Estimating the heights of quoins in the corner of a brick
building___

104

2. Checking over-all dimensions on drawings-

105

3. Estimating cubical content of rough quarry blocks used
for cutting different pieces of stone--.

105

FOREWORD

The manuscript for this bulletin, consisting of an analysis of the jobs in stone setting which the bricklayer is called upon to do in setting stone trim in brick buildings, together with suggestive courses of training for apprentices and journeymen workers, was prepared under the direction of Frank Cushman, chief of the trade and industrial education service, by G. A. McGarvey, regional agent for trade and industrial education. Acknowledgment is made of the valuable assistance given by H. S. Brightly, director architects' service bureau, Indiana Limestone Co., Bedford, Ind., without whose assistance this bulletin could not have been prepared.

Acknowledgment is also made of the help received from various trade associations representing the producers of cut stone, from national employers' organizations, including general contractors and mason contractors; and from the Bricklayers, Masons, and Plasterers International Union for valuable suggestions given by individuals. and members of these organizations.

Acknowledgment is also made of information furnished on trade practice by David Angus, cut-stone contractor, New York City; the Vermont Marble Co., Proctor, Vt.; the Indiana Limestone Co., Bedford, Ind.; National Association of Marble Dealers, Cleveland, Ohio; Briar Hills Stone Co., Glenmont, Ohio; and others for the loan of photographs, drawings, and cuts used in illustrating this

bulletin.

J. C. WRIGHT, Director.

IX

INTRODUCTION

It is the purpose of this bulletin to outline in the various sections the instructional material, both of a manipulative and technical nature which a bricklayer apprentice or journeyman worker should possess as the part of his trade relating to the setting of cut-stone trim in brick buildings. No attempt is made to tell how to do the various jobs of stone setting, but there is given with each job outlined a list of the operations and technical information necessary to carry out the completed work. The bulletin is intended not as a selfinstructor, but as a manual to be placed in the hands of competent bricklayer instructors to assist them in better organizing their apprentice training programs.

An analysis of the bricklayer's trade appeared in bulletin form1 as a trade and industrial education publication of the Federal Board for Vocational Education, in which a complete analysis of the jobs making up the bricklayer's trade were included. This analysis was based on the materials that a bricklayer uses. Among these materials were common, face, and enamel brick, terra cotta and cut stone, and fire brick and hollow tile. One block in this bulletin included a list of type jobs which a bricklayer is called upon to do in the setting of cut-stone trim. This block, headed "Block-BL-III" and entitled "Jobs calling for the setting of architectural terra-cotta and cut-stone trim," has been used as a basis for organizing the material in this bulletin. In fact, this bulletin is intended to supplement bulletin No. 95, thus giving to the trade instructor, in outline form, a complete list of the cut-stone trim jobs mentioned in the analysis of the bricklayer's trade.

BRICK AND CUT STONE IN COMBINATION

In the design of any brick building where the architect wishes to employ ornamental detail as an architectural treatment he must use a medium in which this detail can easily be executed, and stone or architectural terra cotta is usually used for such work. The softer and more readily worked stones, such as marble, limestone, and sandstone, which are adaptable to machine production, are naturally preferred for this purpose. It is the setting of this stone trim with

1 Bulletin No. 95, Trade and Industrial Series, No. 27, Federal Board for Vocational Education, Washington, D. C.

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