US 1238854 A
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Description (OCR text may contain errors)
w. w. wusom. SHEET METAL WINDOW SCREEN FOR RAILWAY CARS.
APPuc'Anou mwjun. 26. I911.
Patented bupt. 4, 191?,
2 SHEETS SHEET 1.
W. W. WMS JIR. SHEET METAL wmnow SCREEN FOR RAILWAY CARS.
APPLICATION FILED MAR. 26. I911- 1,238,854. v PntvntedSept. 4, 191?.
*WILLIAM W. WATSON, OF
JAMESTOWN, NEW YORK.
SHEET-METAL WINDOW-SCREEN FOR RAILWAY-CARS.
Specification of Letters Patent.
Patented Sept. 4, 19197.
Application filed March as, 1917. serial No. 151,353.
I" 20 all whom it may concern:
l e it known that I, lViLmAM W. VVAT- a citizen of the United States, residing at the city of Jamestown, in the county of (hautauqua and State of New York, have invented certain new and useful Improvements in Sheet-Metal Window-Screens for Railway-Cars, of which the following, taken in connection with the accompanying drawings, is a specification.
The invention relates to sheet metal window screens for railway cars and similar uses and is an improvement upon the window screen construction shown in Letters' Patent Nos. 836,475 and 956,239; and the object of the improvement is to provide a tubular screen frame-w th inner and outer corner braces which g atly strengthen the corners of the screen frame, and to provide other improvements and conveniences, as shown in this specification and the accompanying drawingsand pointed out in the claims.
In the drawings, Figure 1 is a plan view of the screen frame with the improved con struction, parts of the screen frame bring shown in section. Fig. 2 is a sectional view oiithe combined corner bracc and spring holt holder at linr X-X in Fig. 4 showing the constriutiou and arrangement of the parts with the spring bolt in the barrel of the holder; and Fig. l is a top plan new f the corner mice and bolt harrcl; and Fig. 4. is an end elevation of the same showing the end of the holt. barrel with the holt stem therein; and Fig. 5 is a plan view of the flat pattern for the combination corner brace and bolt ha rrcl before it is shaped in the angular tabular form by the forming dies. Fig. 6 is an elevation of one of the upper corners of the frame; and Fig. 7 is an elevation of one of the lower corners of the frame, showing the construction of the same; and Fig. 8 is a perspective view of one of the upper corners of the scrccn showing the grooved edge and bolt therein with one of the side lugs which holds the screen upon the slide, the frame side being shown in sectional perspective. Fig. 9 is a perspective view of a portion of the opposite lateral sides of the screen frame showing one of' the holding springs in the deep groove therein. Fig. 10 is a perspective view of a portion of the lower side of the screen frame with the screen wire therein along t and showing the downwardly projcrting weather strip. Fig. 11. is a detail perspective view of the channel-piece with the crosswise bar or roll turned therein for cngagw went by a hook in order to pull down the window screen, which channel piece forms a reinforcement for the central portion of the lower screen side, as shown in Fig. 1. Fig. 12 is a perspective view of one of ill, tubular sheet metal corner braces for the lower screen corners wherein the spring bolts are not used; and Fig. 13 is a plan view of the flat pattern fOI'tfUI'llllIlg the corner brace shown in Fig. 12. Fig. 14 is an edgewise elevation of a portion of the grooved edge of the lateral frame Sldl. show ing one of the lugs'or holding plates attached to the edge of said screen side. Fig.
15 is a perspective view of a portion of one of the upper screen sides showing the construction and arrangement for the operating lever for the spring bolt, the opening for joining the operating lever to the bolt stem and the plate for closing said opening he- I ing shown, as well as the covered opening in the groove and flange for-tho insertion of the operating lever; Fig. 16 is a sectional view of the frame side at line Y-Y in Fig. 15 showing the lever inserted therein and the openings on the opposite sides. Fig. 17 is a perspective view of a portion of one of the frame sides showing the sunken hand grip therein and the guide lug on the side thereof.
Like characters of reference refer to corresponding parts in the several views.
The numeral 10 designates the tubular sheet metal frame 'side which is cut and bent from the Hat sheet metal strip by means of suitable dies so as to form the lengthwise groove 11 along the inner edges of the frame side. i
The numeral 12 designates the top rail whi h is preferably formed of one or more strips of sheet metal shaped so as to form a lengtl vise groove 11 which opens sidewisc l ic inner edge and a lengthwise groove 13 which also opens idewise along the outer edge, both of said grooves enlarging inwardly. The inner groove 11 enlarges inwardly to receive the spline or M holding strip 14 for attaching the screen fabric 15 within the groove 11. The outer groove 13 'enlarges inwardly to receive therein the weather stripping 16 which fits strips 17 andlS, the two lengthwise contacting edge portions of which are pressed together and bent into the lengthwise channel groove along each of the edges, both of the 'edges of the sheet 18 being left short and both edges of the sheet 17 on the outer side extending over the edges of the sheet 18 into each ofsthe grooves 11 and 13, thereby narrowing the mouths of each of the grooves 11 and 13 the thickness of theiriturned sheet metal edges sothat said grooves may be said to enlarge inwardly to hold the'spl'ne 14 and'the weather stripping 16. The contacting cdges of the plates 17 and 18 are preferably welded or soldered or otherwise attached together so that they cannot'turn or move upon one another.
The lower cross rail or tubular frame side 19 is preferably made of two sheet metal strips 20 and 21in somewhat the same form as the upper frame side or cross rail 12, the exceptions being that the groove 11 is made slightly different, the strip 21 being bent at as inclined angle 22 to prevent the use of ked instruments upon the screen or frame side in lowering the same as is necessary in our screens, and the lengthwise groove 23 for the weather strip 16 is preferably formed on the outer side of the lower edge of the rail. 19 sothat said groove opens downward and said weather strip'lfi may be pressed downward onto the window sill.
The corners of the screen frame are preferably 'mitered and united by soldering or welding though they may be united by any other suitable means, for example, sweating. riveting or screwing. The inner corners of the frame sides are braced by extending the ends of the folded inner flanges 24 so that the extensions of said flanges 24 interlap one another. as shown at 25. the flanges 24 being .bent suilicientlv to accommodate one another and the intro-lapped ends are soldered or welded together so as to firmly hold and brace one another, thereby making on exceedingly strong attachment for the inner corners of the frame side. On account of the inclined or beveled inner edge 22 of the lower cross rail. the fold T and of the flange 24 is lapped within sai edge 22am! at- -tarhed thereto thereby strengthening the lower corners of the frame. The op osite corners, preferably of the "upper frame side, are provided with the spring bolts 26, and the oppositepnter. edges of the lateral frame sides have the grooves 27 and 28' therein for slidably mounting upon slidingways on the window frame.
The shallower groove 27 is provided with the lugs 29 on their outer edge to assist in holding the grooved edge upon the sliding way, and the deeper groove 28 has the springs 30 therein for holding the grooved edges upon the sliding waysand making it possible to insert the screen frame upon the sliding ways, a handheld 31 being provided on the shallower grooved edge of the frame side b? soldering or otherwise attaching a strip of metal around the opening in the hollow frame side for the hand-hold 31, as shown in Fig. 17, thereby making a convenient sunken hand-grip in the frame side which is strong and durable and which does not permit moisture to enter the frame side.
It is apparent that the mitered ends of the hollow sheet metal frame sides must be strongly attached to one another; For this purpose I prefer a simple interior sheet metal tubular corner brace 32 for those corners in which there are no spring bolts and 33 for the .corners in which a spring bolt is inserted. a p
The tubular corner braces 32 and 33 are made from the flat sheet metal in the following manner: The corner brace 33 which holds the spring bolt 26 is a combination corner brace and bolt barrel. having the bolt barrel 34 in one of its angular portions. T the flat sheet metal blank as shown in Fig. 5.. the central portion 35 is formed into the tubular barrel 34 for the spring bolt 26 and has'thc outwardly extending edges 38 which brace against the inner wall of the frame.
the portion 35 to permit of the folding of the wings 36 Mid 37. i
The end 39 of the barrel 34 is closed shill-J (-icntly to hold one end of the spring 0 around the stem 41 of the bolt 26so'that said coil spring 40 works freely around the stem 41 within the barrel 34. The inner end of thestem' tl is attached to the lever 42 which lever is pivotally mounted in the frame sides so as to withdraw the bolts 26 by pressing t levers 42, thus forming a convenient spring belt for each of the upper corners which support and lock the screen frame firmly in position ways.
upon the sliding In order that the lever 42 may extend within the, sheetmetal frame side, said lever rnust extend through the groove 11 on the inner edge of the tubular-frame side. Ac c'ordingly a tube 43 is provided in the bottom of the groove 11 which enlarges inwardly to permit the required pivotal action of the lever 42 in operatingthe bolt 26, and
a hole 57 15 provided through the flange 24 i opposite the end of the tube'43 so that the operating lever 42 may be inserted and pivotally attached within the frame'side. In
order to attain the pivotal attachment'of the stem 41 to the inner end of the operating lever 42, a countersunk opening 44 is provided in the frame side on both sides of said inner cndof thelever 42 and plates'45 are soldered, into the counter sunk opening 44 so that after being so soldered they may be polished and finished with the remain of the frame side, yet providing a means by which the joint between the inner end of the stem 41 and lever 42 is easily accessible, it only being necessary to unsolder the plate 45 and remove the same.
For the lower corners or corners where the spring bolts :26 are not needed, the simple tubular corner brace 42 is provided which is made as shown in Figs. 12 and 13, a central portion 46 'folding into one of the angular tubular ortions and the wings 47 and 48 folding into the other, much the same as in corner brace 33. The notches 49 and 50 are provided to form the drip hole 51 in the lower side so that should moisture enter thefrnnic side it will drip out through the drip hole 51, a drainage opening 52 being provided in the lower cross 'rail opposite the drip hole 51 so that the water may drain out of the frame side through the holes 51 and-52.
As hereinbefore stated, the ed e 22 of the lower frame side is preferably ormed with an incline or bevel, as shown in Fig. 10, to prevent injury to the sheet metal frame side iy the use of a hook in drawing down or pushing up the screen within the car side. In order to provide for the correct usage of the hook, upon the frame side, a short chan nel strip 53 is attached within the lower sheet metal tubular frame side 19',v being welded or soldered or [otherwise attached therein and the bottom of the channel strip is slotted at .55 each side of its central POICIOHHDII the cutaway parts are bent over one another so as to-form a strong crosswise roll 54 to receive the book 56 through the openings 55, as shown in dotted oiitline in Fig. 1. The sheet metal frame side 19 is correspondingly slotted so as to register with the slot and the sheet metal cutaway portion for said slot is also not severed at the opposite innersides, the same as in slots 55, said sheet metal portions being bent over one another in the crosswise inet'al roll 54, therebv forming a strong crosswise bar or roll of the intercurved metal from the slots 55', said slots forming openings through which the book 56 can be easily inserted in order to engage the roll 54 and draw down the screen frame. The channel strip 53 is placed midway of the length of the, lower tubular frame side so that the hook-56draws true on said frame.
' metal plate,
I claim as new 1. In a window screen, a sheet metal frame comprising tubular side and end pieces, said side'and end pieces mitcred at the corners and attached to one-another, c rtensions on said side and end pieces at the Inner corners to intcrlnppingly attach them to one another and brace said inner corners, screen wire, and means for attaching said screen wire to said frame.
2. In a window screen, a sheet metal frame with tubular side and end pieces having a. groove along their inner edges, extensions of said inner edges at each of the corners inter- -lapped and welded to brace said corners,
screen wire, and a filling strip for attaching said screen wire in said groove.
3. In a window screen, a sheet metal frame comprising tubular side and end pieces, a flange along the inner edges of said side and end pieces to form a groo\'e,'screcn fabric, a filling strip for atta'ching said fabric in said groove, and interlapping extensions on the ends of said flanges welded to one another at each corner to brace and strengthen the inner corners of said frame.
4. In a window screen, a sheet metal frame comprising tubular side and end pieces, a flangealong the. inner edges of said side and end pieces to form a groove, screen fabric, a filling strip for attaching said fabric in said groove: and an extension on one of said flanges at each corner turned at an angle and welded to the end of the adjacent flanged chd, to strengthen and brace said corner. A
5. In combination with a tubular frame corner, a corner brace comprising a T-shapcd metal plate, the central portion of said T- forming a corner brace and fitting within the ends of the adjacent tubular frame sides.
' 6. In having hul'ar side and end pieces with mitered Joints at the corners, an interior cor- 'ner brace for each corner of said frame comprising an angular tube formed from a sheet ortions of said sheet metal pla e being fo ded'to fit within the adjacent side and end pieces at each of said mitercd corners, said mitered corners being soldered to said tubular corner braces.
7. In a window screen, a'hollow tubular sheet metal frame, the lower frame side having a beveled upper edge to prevent hooking thereon, said lower frame side having spaced openings in the lower edge thereof. and a crosswise. brace between said spaced openings to receive an operating hook over said brace to draw down the screen.
8. In a window screen, a sneet metal frame window screen, a sheet metal frame 'lar frame side having an opening therein,
and a crosswise brace in said lower frame side adjacent said opening to receive an operating hook over said brace to draw down the screen.
9. In a window screen, a sheet metal frame having tubular frame sides, a channel strip 'within the lower tubular frame side,.par-
tially cutaway strips cut from said channel stri 1 and. the adjacent frame side interfolded to orm a crosswise brace having openings on each side thereof to receive an operating hoolcover said brace through said openings.
10. In a window 'screen, a sheet metal frame having a tubular bottom rail, said rail having strip-like arts displaced therefrom 1 with one end attac ed to the rail, said strips oeing bent to interengage and provide a window-lowering hook engaging means, and't he openin s provided by the displacing of said strip-1i e parts receiving sald hook therethrough.
11. I In a window screen, a sheet metal frame comprising tubular side and end pieces, a hand-grip in the tubular frame comprising a lengthwise opening in the frame 35 side, and a strip of metal soldered to 'the oposite inner sides of said sheet metal tubular rame slde around said lengthwise opening to form an inclosed hand-grip the depth 0 the-tubular frame. H
12. In a wifidow screen, a sheet metal frame havin a tubular bottom rail, a part of said rail eing displaced and shaped to form a means to engage a window lowering hook and. the opening provided by the displacing of saidpart receiving said book therethrough.
13.' In a window screen, a sheet -metal screen covered frame having sides and ends connected atthe corners thereof; the adjav cent portions of the sides and ends having 0 overlapping substantially right angular ego tensions,'and means to secure said extensions to one another in" superimposed relation to brace the corners of the frame.
In testimony whereof I have allixed my signature in the presence of two witnesses.-
WILLIAM W. WATSON.
L. M. GoULnmo, H O. SANDBERG.