US1004689A

US1004689A - Window-scaffold.

Info

Publication number: US1004689A
Application number: US59286710A
Authority: US
Inventors: Levi L Raymer
Original assignee: JOHN S HUNTER
Current assignee: JOHN S HUNTER
Priority date: 1910-11-17
Filing date: 1910-11-17
Publication date: 1911-10-03
Anticipated expiration: 1928-10-03

Description

L. L. RAYMBR. WINDOW SOAFPOLD.

APPLICATION FILED NOV. 17, 1910. 1,004,689, Patented Oct. 3, 1911.

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APPLICATION FILED NOV. 17, 1910. 1,004,689.

Patented Oct. 3,1911.

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LEVI L. RAYMER, OF LIMA, OHIO, ASSIGNOR OF ONE-THIRD TO JOHN S. HUNTER, OF LIMA, OHIO.

WINDOWSCAFFOLD.

Application filed November 17, 1910.

To all whom it may concern:

Be it known that I, LEVI L. RAYMER, a citizen of the United States, residing at Lima, in the county of Allen and State of Ohio, have invented certain new and useful Improvements in 'Windowscaffolds, of which the following is a specification.

This invention relates to improvements in window scaffolds, more particularly to devices of this character employed by persons when cleaning windows and for like purposes, and has for one of its objects to improve the construction and increase the efliciency and utility of devices of this character.

Another object of the invention is to provide a simply construct-ed device of this character which is capable of adjustment to enable the operator to reach all parts of the window from the exterior of the buildmg.

Another object of the invention is to provide a device of this character which may beadjusted to windows of various sizes and to buildings having walls of various thicknesses.

Another object of the invention is to provide a device of this character which may be folded when not in use to occupy a relatively small space.

With these and other objects in view the invention consists in certain novel features of construction as hereafter shown and described and then specifically pointed out in the claims; and, in the drawings illustrative of the preferred embodiment of the invention, Figure 1 is a perspective view of the improved device applied, with portions of a building including a window opening and frame; Fig. 2 is a side elevation of the improved device applied with the window sill in section; Fig. 3 is a detail plan view of portions of the improved device illust-rating the construction of the window frame and sill clamping mechanism; Fig. at is a section on the line 1-4 of Fig. 3.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The improved device is constructed wholly of metal, preferably of gas or steam piping where y the maximum of strength Specification of Letters Patent.

Patented Oct. 3, 1911.

Serial No. 592,867.

with the minimum of weight is secured, and comprises a supporting base frame formed with spaced side members 1011 and a transverse outer end member 12. The base frame may be of any required size, but the side members 10-11 will be spaced apart at a distance equal to the smallest window in connection with which the device is liable to be employed, and will thusbe adapted to windows of any size.

Means are provided in the improved device for detachably coupling the side members 1011 to a window, and as these securing devices are precisely alike, the descrip tion of one will suffice for both. Each of the securing devices comprises a section of piping 13 having a rod 14 slidable in one end and secured in position by a set screw 15 and each rod provided with an inwardly directed toe 16 for engaging against one edge of a window casing, indicated at 17 adjacent to the window stool, indicated at 18. Slidable upon each rod 14: is a sleeve 19 having a bearing foot 20 and secured adjustably to the member 13 by a set screw 21. The foot 20 is designed to bear against the inner face of the window frame, indicated at 22, and operates in opposition to the toe 16 of the rod 1 1. By this simple means it will be obvious that the member 13 may be firmly clamped to a window frame and its casing. The side members 1011 are provided, respectively, with collars 23, through which the members 13 pass, the collars 23 being provided with set screws 24 so that they may be adjustably connected to the members 13. Engaging over the member 13 at each side of the collar 23 is a double hook device having a forked and hooked upper portion 25 and a single hooked lower portion 26. The two hooks 25 engage over the member 13, while the single hook bears beneath the window stool 18 and against the facer member 27 By this simple means the frame 10-11 12, together with the structure supported thereby, is firmly clamped to the window stool, and readily detachable therefrom when required.

Connected to the members 1011, preferably near their outer ends, are sleeves 28-29, the sleeves being provided, respec tively, with perforated ears 3031, between which the lower ends of upright members 32-33 are pivotally supported. The members 32-33 extend normally vertically and are connected at their upper ends by a transverse member 34. Slidably engaging, respectively, upon the members 10-11, are sleeves 35 36, and secured adj ustably to the members 10-11 by set screws 37-38. The sleeves 35-36 are provided, respectively, with upwardly directed ears 39-40 to receive the lower ends of brace members 41-2. At their upper ends the brace members are swingingly connected at 43-44: to the members 32-33. By this means it will be obvious that the members 32-33, together with their braces, all-42, may be folded into parallel relations with the members 10-11, the object to be hereafter explained. Mounted to swing upon the transverse member 12 of the base frame is a brace frame comprising spaced side members IS-46 and a transverse end member 47. The member 47 is provided with bearing toes or feet 48 adapted to engage against a building beneath the window opening. Slidable upon the side members 10-11 of the base frame are sleeves 49-50, and slidable upon the brace members 45-46 are other sleeves 51-52. The sleeves 49-50 are provided with perforated cars 53 54, while the sleeves 51-52 are provided with similar perforated ears 55-56, the ears just described being utilized to swingingly support braces 57-58. By this means the brace frame 45-6-47 may be adjusted to any required extent to control the relative position between the brace members and the frame members, and thus adapt the device to walls of various thicknesses, as will be obvious.

Slidably engaging upon the vertical members 32-33 are other sleeves 59-60, while still other sleeve devices 61-62 are slidably engaged with the members 32-33 at a higher point than the sleeves 59-60. The sleeve devices 59-61 are united by a vertical member 63, while a similar vertical member 64: unites the sleeves 60-62. Swingingly connected to the sleeves 59-60 is a platform, represented as a whole at 65, the platform being preferably formed, like the remaining portions of the device, of sections of gas piping. The member 65 is oblong in,

outline and covered by a suitable foot support, indicated at 66. Secured upon the side members of the platform are sleeves 67-68, the latter sleeves being provided with perforated ears to receive the folding brace sections 69-70, while similar folding brace sections 71-72 are swingingly coupled to the sleeves 61-62. The brace members 69-71 are hingedly united at their free ends, as shown at 73, while the brace members 69-70 are similarly jointed, as shown at 74;. By this arrangement it will be obvious that the platform 65 is firmly supported in horizontal position from the sleeves 61-62, but is foldable therewith when required. By this means the platform 65 may befolded against the members 63-64 and in parallel relations to the vertical members 32-33.

A Windlass 75, of suitable material and proportions is mounted for rotation between the sleeves 61-62 and provided with an operating crank 76 and a stop ratchet and pawl 77-78. Connected at 79-80 to the transverse member 34 of the vertical frame are cables 81-82 which are connected at their ends to the windlass 75. rangement it will be obvious that when the crank 76 is rotated in one direction the cables 81-82 will be wound upon the drum and thus elevate the platform 65 to any required extent within the range of the members 32-33, and held at any point by the operation of the ratchet and its stop pawl.

The improved device is simple in construction, can be inexpensively manufactured of material that is readily procured in the open market, and does not require any expensive attachments to complete the structure. It will thus be noted that a simply constructed window scaffold is produced which may be readily connected to the window and will support aperson in safety and in convenient position to clean, paint, or otherwise work upon the exterior ,of windows, and by simply actuating the crank 76 the supporting platform 65 may be adjusted to enable a person to conveniently reach any part of the window when required. hen required the improved device may be readily folded into a comparatively small space for transportation or storage.

Having thus described my invention, what is claimed as new is:

1. In a device of the class described, a supporting frame including horizontal members and vertical members, means for detachably connecting said supporting frame to a window, a platform slidable upon said vertical frame members, and means carried by said vertical members for moving said platform toward and away from the horizontal members of said frame.

2. In a device of the class described a supporting frame including horizontal side members and vertical members spaced apart and rising from the horizontal members,

means for coupling said horizontal frame members to a window, braces connected to said horizontal frame members and adapted to engage against a building, a platform, and means carried by said vertical frame members for moving said platform toward and away from said horizontal frame members.

3. In a device of the class described a horizontal base frame, means for detachably connecting said base frame to a window, a

By this arvertical guide frame swingingly connected to said base frame, a platform mounted for movement upon said vertical frame and foldable into parallel relations therewith, and means for moving said platform upon said guide frame.

4. In a device of the class described a horizontal base frame, means for detachably connecting said base frame to a window, a vertical guide frame swingingly connected to said base frame, another frame slidable upon said guide frame, a platform mounted to swing upon said slidable frame and foldable into parallel relations therewith, and means for moving said slidable frame and platform upon said guide frame.

5. In a device of the class described a horizontal base frame, means for detachably connecting said base frame to a window, a vertical guide frame swingingly connected to said base frame, another frame slidable upon said guide frame, a platform swinging upon said slidable frame, jointed braces connecting said platform and slidable frame and foldable together with the platform into parallel relations to the slidable frame and guide frame, and means for moving said platform and slidable frame upon said guide frame.

6. In a device of the class described horizontal base frame, means for detachably connecting said base frame to a window, a vertical guide frame swingingly connected to said base frame, braces swinging at one end to said guide frame and slidable at their other ends upon said base frame, another frame slidable upon said guide frame, a platform swinging upon said slidable frame, jointed braces connecting said platform and slidable frame and foldable together with the platform into parallel relations to the slidable frame and guide frame, and means for moving said platform and slidable frame upon said guide frame.

7. In a device of the class described a horizontal base frame, means for detachably connecting said base frame to a window, a vertical guide frame swingingly connected to said base frame, braces swinging at one end to said guide frame and slidable at their other ends upon said base frame, another frame slidable upon said guide frame, a platform swinging upon said slidable frame, jointed braces connecting said platform and slidable frame and foldable together with the platform into parallel relations to the slidable frame, a Windlass carried by said slidable frame, and connecting means between said windlass and said guide frame.

8. In a-device of the class described a supporting frame including spaced side members having collars at their inner ends, holding members adjustably engaging in said collars, clamping means carried by said holding members and adapted to engage the casing members of a window, a yoke engaging the holding members at each side of the frame collars, each of said yokes having a hook adapted to engage with the sill of a window, and means for clamping said yokes to said frame.

9. In a device of the class described a supporting frame including a base portion and a vertical portion, means for detachably connecting said base portion to a window, a platform, and means for supporting sald platform upon said vertical portion and spaced above the base portion.

In testimony whereof, I affix my signature in presence of two witnesses.

LEVI L. RAYIWIER. [n s.]

Witnesses:

A. C. CUNNINGHAM, DANIEL I-I. WHITE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.