US532037A - Charles f - Google Patents

Description

(No Model.)

C. F. W. DOEHRING. FIRBPROOF CEILING.

No, 532,037. Patented Jan. 8, i895.

AUGRNEY .UNITED STATES PATENT -v "OFfIvCl-.

CHARLES niv. DOEURING, or NEW YORK, N. Y., AssIeNoR 'ro Tun', poEnRINo it VAN FIRE PnooFINo COMPANY, on siii-rn PLACE.,

siREPR'ooF cEiLiNe.

SPECIFICATION forming part of Letters Patent No. 532,037, dated January '85 1895."

Application filed September 14.1894. Serial lio-523,021.I (No modem I --'oiaJZ whom t ,may'concerm Be it known thatl, CHARLES F. lV. DOEH- R'ING, acitizen of Germany, andaresident of.

New York, in the county and'State of New 5` York, have inventedcertainv new andnsefnl Improvements in Fireproof Ceilings, of whichf A otheruitable material. Then a suicient fthe following is la specification. My rinvention relatesto improvements `in ,ceilngsand consists in a. ceiling'of anew'and ro .simple construction, by which 'not alone the height, aswell, as theweight of 'the ceiling is greatly diminished, but also the power of resistanceof'the saine is highly increased,

My improved ceilingV is illustrated in 'thev 15 accompanying drawings, in which Figure I' shows a cross-section and'Fig. 2 a longitudinal section of thesa'me. Figs. Sto

7 are cross-sections of .the intermediate girdj t ers in diierent constructions. Figs. 8 'and 9 zo are cross-sections of ceilings Ashowing the appliances of such girders in connection with supporting wires.

gitndinal and a cross section respectively of my ceiling without the appliance of the inz 5 termedite girders,

'Similar'letters of reference indicate corre- 1 spending parte. f

- Referring to the drawings A are iron beams with lateral bottom and top flanges Wliiclare 3c vparallelly*laid onand held by the side-walls of the buildings in the usualmanner..

B are sheet metalgirdersof .a triangularcrosssection, the Shanks of4 which may be p'rovided with inwardly or. outwardly projecting 3`5` extensions, as'shovmin Figs'. 4, 5, and 6, or may be perforated, as indicated in Figui?. These girder's are placed between jthe said beams A and held thereon by thelower ilanges-of the same, asshown in Figs. 1 and 2.' f

4o The filling mortar 'C consistsot theusual 'binding materials and is intermingled with :shortpieces of thin Wire of a length of about one inch, which' wirefpieces have the purpose ltoimpart fte the mortar a higher degree of 45 .firmness and consistency;

D are wires either drawn and stretchedA through the perforations ofithe triangular in-v termediate girders or simply placed upon the lateral` extensions of the Shanks ofthe same, y5o as illustrated in Figs. 8 and 9 respectively.

E is a bottom-layer formed of broken stones or broken castcd or burned tiles.

from each other. V v the intermediate gil-ders may come-in contact Figs. 10 and 11 are a lonvWith the beamsA with both Shanks or in any My improved ceilings are'bniltin, the fai-if v lowing. manner: Upon Vthe topsnrt`ace ofthe supporting scatioid'a'laycriof broken stones '.or tilesiis vplaced and' evenly distributed therequantity of the mortar, containing the aforesaidfWire-piecee, is placed .upon the said bot'- tom-layer to combine they broken stones or `tiles with each other and to-form thus asap.

porting bottom for the ceiling; Upon the lower flanges of the' beams A the triangular intermediategirders '13, consisting of sheetmetah as said before, are then: placed in ref quired distances from each other, and the spaces betweenl the beams and .the intermediate girders arelled up with thebefore described mortar to a certain height, which des pends ,on the distances the beams are laid lt may be understood that other Way and that the spaces between the slianksof -the'girdersmay he filled with mortar `beforefthey are attached to the beams, so that they, filled in such a manner, can be brought on the market asaspecial article of, 8p l manufacture.

Todiminish the weight of the mortar, 'it' intermediate girders, or such wires may be placed upon the lateral extensions of the girders and embedded in the mortar. Instead of the wiresany other suitable supporting mate'- rial, answering thepurpose,forinstance,bandiron or metal rods or strips of any cross-section may be used. The remaining npper'spaces fof they ceiling are finally lled up with any responding perforations of the Shanks of the f yknown filling material, as ashes, and when 1 the mortar has dried and binds, the supporting scalold underneath the ceiling is removed,

whereafter the ceiling is provided with the usual'jinishcoating'. l

press-ure upon the beams A is entirely dispensed with, the height and weight of the ceiling are greatly diminished and, in cornroo f By'niy improved construction the lateral v z 5 termediate girders, substantially as set forth. 2. 'A ceiling yconsisting of parallel fbeamsffsf,

parisonfiri tlisueh` reduced height and weight, the; most possibleresistance and strength' are claim as new andl desire to secure by Letterspassesfgf-ail other knogwn constructions in re- Y gard tto simplicity, aswell as to cheapness and v strength-"5 f Having "thus described my invention, I

Patent-- Y sheet;4 metal ygirders of triangu to the said lgirders, and a binding m''rtrlll ing the spaces betweentbe said beams andv inintermediate' sheetfmetai girders. of triangular cross-section attached crosswise to the said "beams, and a" binding 'mortarbaving small wire pieces vintermingled therewithand llingy the spaces between mediate girders, substantially as set forth.

i 3.. A ceiling consisting of a bottomlayer of mediate `sheet-metal 1. .A ceiling consisting of parallel beams, intermediate lar cross-section attached crosswise to the said beams,.wi're s`stretched between and attaohed the s aid beams and intertnolrenvy stones or til'esQnnarallel bean,naliniier-` 'girders of triangular crloss-s`action attached:crosswiseV to the said '.beams, and `al binding mortar having small y wire-piecesintermingledtherewith andjllng the spaces between-the saidbeams and intermediateigirders,'substantially as set forth.

'-4.' Aceilingconsisting of a bottom layer of broken stones or temberglSS-L. a' l i 'l 0111A.miasy F., DOEHRING. Witnesses: y y* Y ALB. vos DEN DRinscH, .g CHARLES KARP.

i tiles,.pral lel beams, interv `mediate sheet-inefal girders of triangular lforo ss-s'action ence oftwo witnesses, this' lltnday of Sep-v

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