US809104A - Window-crane. - Google Patents

Description

PATENTED JAN. 2, 1906.

" T. E. FRENCH. WINDOW CRANE.

APPLIOATION FILED NOV 28 1904 UNITED STATES TOMSON E. FRENCH, OF DAVENPORT, IOWA.

WINDOW-CRANE.

Specification of Letters Patent.

Patented Jan. 2, 1906.

Application filed November 28, 1904:. Serial No. 234,596.

To all whom it may concern:

Be it known that I, ToMsoN E. FRENoH, a citizen of the United States, residing at Davenport, in the county of Scott and State of Iowa, have invented a new and useful Window-Crane, of which the following is a specification.

The present invention relates to cranes adapted to be secured at a. window or other analogous elevated position for the purpose of raising thereto and lowering therefrom heavy objects, such as pianos and the like.

One of the principal objects is to provide a crane of this character that is very simple in structure, is adapted to be placed at one side of a window, so that it will not materially obstruct the same, and at the same time is at a very suitable position to permit the free ingress or egress of the article to be moved.

A further object is to provide means of a novel and simple nature for securely maintaining and holding the crane in place, said means being furthermore adjustable to permit its proper engagement with frames of different sizes and shapes.

The preferred embodiment of the invention is illustrated in the the accompanying drawings and is described in the following specification.

In said drawings, Figure 1 is a perspective view showing a Window and the new crane in place thereon. Fig. 2 is a side elevation of a portion of the crane, showing more clearly the retaining means. Fig. 3 is a sectional view taken on the line 3 3 of Fig. 2. Fig. 4 is another sectional view taken on the line 4 4 of Fig. 2. Fig. 5 is a detail section on the Fig. 6 is a top plan view '-which is spaced from said mast, forming a ring 10, from which is adapted to be suspended the hoisting-tackle 11, that may be of any desired construction. The lower end of the mast is adapted to rest flat upon the windowsill, as shown in Fig. 1, with said mast at an inclination thereto, and conse uently said lower end is beveled, and the s 0e 8 is arranged at an inclination thereto. The corner of the wall adjacent to the window-frame is arranged to be received in the angle formed by the flanges of the mast, as will be apparent. For the purpose of securing the mast in the desired position at one side of the window-frame an arm 12 is employed, the outer end of which is arranged to be adjustably secured longitudinally along the mast, said mast being provided with a longitudinal series ofopenings 13, adaptedto receive a fastening-bolt 14, that passes through the arm. This arm is furthermore provided along one edge with a rack 15, and its inner end portion has a longitudinal series of openings 16.

A carrier slidably mounted on the arm consists of side plates 17, connected by tie-bolts or rivets 18, one'of which is provided with a spacing-sleeve 19. The other is adapted to interlock with the teeth of the rack, and thus normally hold the carrier against movement on the arm. A frame-engaging jaw 20 is pivoted, as shown at 21, to and between the side plates of the carrier, the free end of said jaw having an offset bill 22, arranged to bear against the outer edge of one side of the frame. Another jaw 23 is adapted to bear against the inside of the frame and is provided with an oflset terminal portion 24, that lies alongside the arm. Through this portion are passed suitable holding devices, as bolts 25, which are also arranged to be passed through the different openings 16. Thus the jaws 20 and 23 are arranged to embrace one side of the window-frame, as illustrated, and are both adjustable upon the arm 12, as well as respectively adjustable toward and from each other.

For the purpose of preventing the accidental disengagement of the jaws from the frame retaining means are employed in the form of an extensible bar consisting of sections 26 and 27, adjustable longitudinally of each other and normally held against such adjustment by a bolt 28, that is adapted to be passed through any of a series of openings 29, formed in the sections 26 and 27. The section 26 has a downturned outer portion 30, terminating in an offset foot 31, adapted to bear against the opposite side of the win dow-frame to that engaged by the jaws, as shown in Fig. 2. The opposite end portion of the other section 27 is downturned, as

shown at 32, and is provided with a depending pin 33, which detachably engages in an eye 34, formed'in the free terminal of the jaw 23. The sections are arranged to be held against pivotal movement by a fastening-bolt 35, passing through certain of the openings 29, and the section 26 is preferably provided with a handle 36, by means of which said sections may be relatively swung.

In applying the device to a window the mast is first placed in position and the inner jaw 23 adjusted and secured at the proper point upon the arm, so that when it is abutted against the inside of the frame the mast will be located at the desired inclination. The carrier 17 is then adjusted along the arm and afterward the jaw 20 is forced outwardly, so as to clamp against the outer edge of the frame, thus securely fastening the arm in place. The retaining-bar is then extended or retracted to the width of the window, the pin 33 is engaged in the eye 34, after which the section 26 is swung to alinement with the section 27, and said sections arelocked against movement to thereby secure the jaw against detachment. It will of course be understood that those arts bearing against the frame may be pad ded in order to prevent marring of the woodwork and varnlsh. The tackle having been suspended from the mast, as illustrated in Fig. 1, the crane is ready for operation, and heavy articles may be raised or lowered and passed through the window with ease, expedition, and without danger of falling. It will be apparent from the drawin s that the structure is simple, can be readi y and cheaply manufactured, constitutes no material obstruction to the window, and can be quickly placed in position and removed.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention will be a parent to those skilled in the art without rther description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the'spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a window-crane, the combination with a single supporting-mast having a sillengaging foot at its lower end, of means connected to the mast above its lower end for attaching the same to a Window-frame and holding it against movement with respect thereto, and means for suspending elevating mechanism from the mast.

2. In a windowcrane, the combination with a single supporting-mast formed of angle iron, the flanges of which form at their lower ends a corner receiving seat, one of said flanges being longer than the other and outturned to form a foot, of means for attaching the mast against movement to a windowframe, and means for suspending elevating mechanism from the upper end of the mast.

3. In a windowcrane, the combination with a support having its lower end arranged to rest upon a sill, of an arm connected to and adjustable longitudinally of the support between the ends thereof, and means fol securing the arm to a window or analogous frame. I

4. In a window-crane, the combination with a supporting-mast having a sill-engaging lower end and having a longitudinal series of openings, of an arm, a fastening device for the arm arranged to be passed through any of said openings, and means for detachably securing the arm to a window or analogous frame.

5. In a window-crane, the combination with a support, of an arm connected to the support, and means for securing the arm to a frame, said means including a carrier slidable upon the arm, and a jaw pivoted to the carrier and movable therewith.

6. In a window crane, the combination with a support, of an arm connected to the support and having a rack, and means for securing the arm to a frame, said means including a carrier slidable upon the arm and having a device engaging the rack to hold the carrier against movement, and a jaw carried by the carrier.

7. In a window-crane, the combination with a supporting-mast, of an arm connected thereto and having a rack, a carrier comprising side plates that embrace the arm, and connections between the plates, one of said connections adjustably engaging the {rack, and a jaw pivoted to the carrier'and arran ed to bear against a window or other ana ogous frame. v c

8. In a window-crane, the combination with a support, of an arm connected thereto and having a longitudinal series of openings therethrough, a jaw having a portion that lies alongside the arm, and fastening means for the jaw arranged to be passed through said portion and the openings in the arms.

9. In a window-crane, the combination with a support, of an arm connected thereto, and coacting frame-embracing jaws both adjustable longitudinally on the arm and movable toward and from each other.

10. In a window-crane, the combination with a mast, of an arm pivoted to the mast and having a rack and a longitudinally-disposed series of openings, a carrier slidably mounted on the arm and having an element that engages the rack, a jaw mounted on the carrier, another jaw, and means for adjustably securing the latter jaw to the arm, said means being arranged to be passed through the different openings in the arm.

11. In a window-crane, the combination with a support, of means for attaching the same to and holding it upon the side of a window-frame, and retainin means detachably connected to said attacfiiing means and arranged to engage the opposite side of the frame.

12. In a window-crane, the combination with a support, of means for attaching the same to the side of a window-frame, said means including a frame-engaging jaw, and a retaining-bar having one end adapted to interlock with the jaw and its other end adapted to bear against the opposite side of the frame to that engaged by the jaw.

13. In a window-crane, the combination with a support, of means for attaching the same to the side of a window-frame, said means including a frame-engaging jaw, and a retaining-bar having one end to interlock with the jaw and'having a frame-engaging foot at its other end that is adapted to bear against the opposite side of the frame to that engaged by the jaw.

14. In a window-crane, the combination with a support, of means for attaching the same to the side of a window-frame, said means including a frame-engaging jaw having an eye, and a sectional extensible retaining-bar having a pin at one end that engages the eye and a foot at its other end that is arranged to bear against the opposite side of the frame to that engaged by the jaw.

15. In a window-crane, the combination with a supporting-mast formed of angle-iron and having a tackle-engaging ring at its upper end and a sill-engaging foot at its lower end, of an arm pivotally and adjustably connected to the mast, frame-embracing jaws engaging the arm and relatively adjustable, the inner of said jaws having an eye, a retainingbar comprising pivotally-connected sections, one of said sections having a pin that en ages in the eye, the other having a foot that ears against the side of the frame opposite to that engaged by the jaws, and means for holding the sections against pivotal movement.

'16. In a window-crane, the combination with a support, of an arm connected thereto, coacting frame-embracing jaws both adjustable longitudinally on the frame and movable toward and from each other, and means for securing both jaws in different positions upon the arm.

In testimony that I claim the foregoing as my own I have hereto afhxed my signature in the presence of two witnesses.

TOMSON E. FRENCH.

Witnesses:

WM. H. WILSON, ELLA GRILK.

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