US474586A

US474586A - Safety apparatus for window-cleaners

Info

Publication number: US474586A
Authority: US
Publication date: 1892-05-10
Anticipated expiration: 1909-05-10

Description

(No Model.) 2 Sheets-Sheet 1.

H. K. WHITNER. SAFETY APPARATUS FOR WINDOW CLEANERS.

N0. 474,586. Patented May 10,1892

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2 Sheets-Sheet 2.-

um E N T T H W K H (No Model.)

SAFETY APPARATUS FOR WINDOW CLEANERS.

No. 474,586. Patented May 10, 1892.

HIRAM K. IVHITNER, OF CHICAGO, ILLINOIS.

SAFETY APPARATUS FOR WINDOW-CLEANERS.

SPECIFICATION forming part of Letters Patent N0. 474,586, dated May 10, 1892. Application filed September 28, 1891- Serial No. 407,082. (N6 model.)

To all whom it may concern:

Be it known that I, HIRAM K. WHITNER, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Safety Apparatus for Window-Cleaners; and I do hereby declarethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in safety apparatus, and is generally adapted to the safety of window-cleaners and portable fire-escape purposes.

The object of my invention is to produce a cheap foot-rest and anchorage for persons engaged in cleaning windows and like occupations or for use in connection with a portable fire-escape.

My invention consists in the construction and arrangement of parts, as hereinafter set forth, and also in the combinations, as described, and shown in the accompanying drawings, in the several Views of which similar letters of reference indicate like parts.

Figure 1 shows my safety apparatus attached to one side of a window-frame, giving in full view its detail. Fig. 2 shows an anchorage formed in the window-frame when the outer casing is formed of iron or covered by terra-cotta, &c. Fig. 3 shows a balcony or foot-rest to be attached to the window-frame and sill and to be used in combination with the apparatus shown in Fig. 1 Fig. 4 is a sectional View of Fig. 3 through the line 2 a. Fig. 5 is an enlarged View of a portion of the front of Fig. l as it appears when laced about the person of a window-cleaner. Fig. 6 shows bushings driven into the window perforations. Fig. 7 shows the detached bushing as an article of manufacture.

In said accompanying drawings, Fig. 1 shows a safety apparatus as preferably constructed. A and B are rope-terminal irons. a is a bolt or shank about four and one-half inches long, to be inserted into hole a, bored into the so-called outer casing of the window-frame. Arm 1) projects horizontally outward beyond the outer face of the hangingstile b, then bent perpendicularly downward, forming a short shank c, and ending in a thimbled ring cl, to which latter stay-rope O is spliced. WVhile said rope-terminal iron is but an element of this invention, its shank 0 immediately above the thimbled ring is the key-point in each modification.

In Fig. 1 key-snap e is mounted upon or is a continuation of a cross-bolt e, placed into the Window-frame relatively to bolt a of the rope-terminal iron. The hole bored for said key-snap bolt 6 passes, as shown, from without inward through hanging-stile b, and next through the outer easing into and partially through the pulley-stile, as nearly as possible at right angles to and about one inch below rope-terminal-iron hole a and a total depth about equal to the latter. It will readily be observed that when said cross-bolts a and e are inserted in their respective holes a. and e and the key-snap e of the one is made to interlock with shank c of the other an anchorage of absolute safety and simplicity is effected.

A and B in Fig. 1 show, respectively, right and left terminal irons. In anchorage B is shown pail-hook f.

Various forms of belts have been suggested in combination with so-called permanent Window-fixturesthat is, eyebolts and staples; but for the purpose of this invention I use a jacket D, made of two folds of strong canvas or ducking.

g and g are slits in the outer canvas, forming a ropeway at the back between the two layers of canvas, through which the stay-rope 0 passes freely. Said ropeway is reinforced by leather strips, rivets, do; also by extending the shoulderstraps h and h down the back of said jacket. At the front the shoulderstraps form loops or pockets 7' and j for cloths and sponges. Rings 00 and 00 are keysnap holders while moving from window to window. Grommets k 76 713 and 7c 70, with the lacing-cord Z, afford a means for securing the jacket about any-sized body.

Fig. 5 shows the pocket j holding the cleaners cloth when not in use. From the keysnap holder so is seen suspended a key-snap withits pail-hooky. Fig. 5 furthermore shows the method of lacing said jacket when placed about the person of the window'cleaner.

Itwill not be a departure from the spirit of this invention to mount key-snap e upon shank c of the rope-terminal iron, as shown in Fig. 2. Here key-snap 6, through the medium of its swivel connections with shank 0, 1S made to readily engage with eyebolt m. The latter is screwed into the outer casing about two inches below the rope-terminal hole a. This anchorage is an admirable substitute for the anchorage hereinbefore described, when, as is sometimes found in practice, that terra-cotta, bricks, or stone trimmings supplant the so-called hanging-stile b. In any event this latter anchorage is best adapted to the purposes of a portable fire-escape, inasmuch as there are no detached parts to be lost in the excitement naturally attending such practical application of this invention. In every modification in practice the strain will fall upon the rope-terminal iron. Very little force is exerted upon the retaining keysnap. Another fact should be noted in this connection. In every instance of mishap, as when the operator loses his footing and in making a descent in escaping from a burning building, the strain upon the bored outer casing is not such as would tend to split said bored outer casing, because the lever force exerted upon the rope-terminal iron is in the direction of the grain of the wood and not across it.

Fig. 3 is another modification embodying but a single improved anchorage, as above. The opposite terminal of the rope C is a simple snap-hook a, made to engage with a link or ring a in aself-adjusting portable balcony, preferably constructed as follows: 0 is a footrest or platform having an iron guard or back 19, supported ata suitable height by the braces q q q and p, the latter being a termination of the back carried downward in a curve and ending in a foot q. The opposite termination of said back 19 is a bolt for insertion into a hole bored at a proper height into the outer casing. Near the foot g is a slotted plate r, adapted to engage with a strong wood-screw permanently screwed into the sill of each window. The enlargement 0" will admit the head of said screw r while slot r engages with the shank of said screw. Hinged to the under side of the foot-rest or platform of the balcony properis a clamping-board 8. To the free edge of the latter is attached a notched bar If. Catch-platen is fitted to the back edge of said foot-rest under the back with reference to its proper engagement with notched bar If.

The method of using this self-adj usting balcony combination is as follows: Bolt p is inserted into the hole formed in the outer casing, (forming an admirable brace because of its height,)' with the clamping board .9 in close contact (parallel) with the platform proper. The enlargement r is slipped over the head of the permanent screw 1*. This end of the platform is now swung outward until the shank of the screw reaches the end of the slot. The clamping-board sis now released and allowed to drop into contact with the stone sill of the window. The notched bar is made to engage automatically with catchplate a, and thewhole is immovably clamped into position, no matter what height or shape the stone bears to the wooden sill of the wlndow. The window-cleaner, with the jacket above described laced about his body, secures the anchorage as in Fig.1, now steps upon the platform, and fastens the opposite terminal (the simple snap) a into the link or r ng a.

In every modification of this invention involving the jacket, as itdoes, it is of the utmost importance that the ropeway be so constructed that when but one anchorage 1s effected (which must be done before the operator emerges from the window) the rope will permit the lateral movement of said operator in wide windows,but will not disengage itself should the operator lose his footing before the second (the final) anchorage is effected. Knots made upon the rope G will adjust sa1d\ rope to the narrower windows.

It will be found in practice that bushings consisting of tubes to, trumpet-bell shaped to, shown in Fig. 7 as an article of manufacture, are adapted to be driven snugly 1n to window-frame perforations, as shown in Fig. 6. Not only do such bushings embellish the window-frames. but they add to the endurance of the said perforations in sustaining the so-called window-guards, and, furthermore, by means of the bushings of the type herein shown, old perforations that may have become treacherous in appearance may be restored by reaming out the decayed surface and then fitted with said bushings.

What I claim, and desire to secure by Letters Patent, is-

1. In a safety apparatus, the combination, with a rope sliding freely in a ropeway secured about the body of a window-cleaner, of the rope-terminal irons, and key-snap bolts adapted to interlock with a window-frame bored substantially as and for the purpose set forth.

2. In a safety apparatus for window-clean ers as herein shown and described, the body jacket or belt, the rope and its terminal irons, and the bolts and snaps, in combination with the balcony or foot-rest adapted to log secured to the window-frame and sill and connected to the opposite side of the window-frame by means of the sliding rope and its anchorage attachments, as set forth.

3. In a safety apparatus, the combination of a window-frame provided with a hole adapted to receive a rope-terminal iron, and a screweyebolt attached to the window-frame, adapted to engage with a key-snap mounted upon the shorter shank of said terminal iron, substantially as shown and described, as a means of anchorage for window-cleaners and portable fire-escapes.

4. In a safety apparatus, a stay-rope and means to secure said rope about the person of the window-cleaner, a rope-terminal iron, a key-snap and its bolt, anda foot-rest, in combination with a window-frame bored and its sill provided with a screw or screws, substantially as and for the purpose set forth.

5. In a safety apparatus, the combination, with a rope-terminal iron, at key-snap and its bolt, a pail-hookf, jacket D, and stay-rope C, of a Window-frame having holes a and e substantially as and for the purpose set forth.

6. In asafety apparatus, rope-terminal iron B, a key-snap e, mounted upon bolt e, and a jacket having pockets, in combination with a window-frame having holes a and 6 substantially as and for the purpose set forth.

7. In a safety apparatus, a jacket having the following elements: a body D, ropeway g and g, shoulder-straps h and h, pockets j andj, grommets 7t 7c 70 and 7t it It, lacing-cord Z, and key-snap holders wand m, a stay-rope O, and rope-terminal irons A and B, and key-snaps,

in combination with a window-frame having holes ct and 6 substantially as and for the purpose set forth.

8 In a safety apparatus, a portable balcony having the following elements: a platform or foot-rest o, guard p and 1), bolt 1 back braces q q q, foot q, slot-plate r, clamping-board s, notched bar t, catch-plate u, and anchoragelink n, rope 0, jacket D, snap n, rope-terminal iron B, and key-snap e, in combination with a window-frame having holes and a screw 0*, substantially as and for the purpose set forth.

In testimony whereof I have affixed n1ysignature in presence of two witnesses.

HIRAM K. IVI-IITNER.

WVitnesses:

A. H. ROSENGARTEN, F. P. ROSENGARTEN.