PARK AND 
CEMETERY. 
670 
fronts of the crypts or loculi are each closed by a shutter, 35, 
preferably a slab of marble or other ornamental material, and the 
upper and lower edges of the shutter engage respectively grooves, 
36 and 37, in the shelves or slabs, the upper one, 36, of which Is 
deeper and slightly wider than the lower groove, so as to permit 
the upper edge of the slab to first engage the upper groove, as 
Indicated in dotted lines in Fig. 5, and move upward in the same 
until the lower edge can drop into the lower groove, when both 
edges are held in the grooves, whereupon the shutter may be 
sealed by grouting or pointing with cement or mortar. The back 
edges of the shelves are secured in the inner faces of the walls 
and interlock with them excepting at the openings forming the 
air flues. 
THE KNIGHT PATENTED MAUSOLEUM CONSTRUCTION. 
By providing the air duct between the crypts or loculi and the 
■wall of the vault or mausoleum structure, by providing such duct 
with inlet and outlet at the lower and upper ends, and by form- 
ing the back walls of the crypts or loculi with openings at their 
top and bottom edges, communicating with such air duct, I pro- 
vide perfect circulation and ventilation from the loculi through 
the ducts, over the ceiling-slab and out to the surrounding atmos- 
phere, thereby disposing of all odors and gaseous effluvia from 
the contents of the loculi and keeping the interior of the structure 
pure. All liquid effluvia may pass out from the loculi through 
the bottom openings into the ducts and be conducted away from 
the same. By providing the transverse vestibule and the win- 
dows at the ends of the same and the corridor, the interior of 
the structure may be perfectly ventilated and lighted. The storm 
windows are preferably of clear glass and, together with the 
grilles, protect the ornamental art windows. The rod or rods de- 
pending from the ridge stone may form additional support for 
the ceiling slab or slabs besides serving as support for hoisting 
apparatus when a .casket is placed in one of the upper loculi. By 
■connecting the space under the roof and above the ceiling with the 
aid ducts, such space will be ventilated and maintained dry, even 
should moisture leak through the seams of the roof. The shut- 
ters of empty loculi will be held in place in their grooves without 
the use of cement or other fastening means and it is only necessary 
to seal the shutters as the loculi become occupied. 
Mr. Knight, in his bill of complaint, in filing suit against 
Mr. Rieger, says that he is the “true, original, first and sole 
inventor” of the improvements described above, which were 
not “known or used before his in'.ention.” He claims to 
have sold and erected mausoleums embodying this patent, 
and to have affixed to them the word “patented,” together 
with the day and year the patents were granted as required 
by law. He claims further that he submitted to Miss Laura 
Praeger, for whom Mr. Rieger built the mausoleum in 
question, plans and specifications and that the prospective 
purchaser submitted to Rieger & Co. certain material parts 
of his specifications to bid on and that Rieger & Co.’s 
plans were “in all material and substantial respects substan- 
tial duplicates” of his original plans and drawings. He asks 
for an injunction to restrain the defendants from construct- 
ing any more mausoleums embodying this construction and 
for damages. 
Rieger & Co., in their answer, filed with the court, deny 
that the alleged improvements are patentable, and deny that 
they submitted to the purchaser plans that were substan- 
tially duplicates of those of Mr. Knight. They allege on 
the other hand that they submitted their own original plans 
and drawings, and deny that there was any confederation 
between them and the prospective purchaser; in fact they 
say that Mr. Knight “kept full care and control of all 
plans, drawings or specifications submitted,” “not leaving 
them at any time in the care and keeping of the defend- 
ants,” Miss Praeger, the purchaser, being made one of the 
defendants in the suit. 
The case has not yet been completed. Up to the present 
time Mr. Rieger’s attorney, William B. Smith, of Balti- 
more, informs us, the complainant has produced only two 
witnesses. Proceedings are at present waiting for him to 
go on with his case. 
