US833331A - Window-lift. - Google Patents

Description

No. 833,331. 4 PATENTED 0GT.'16,'1906.

C. MIGHAELIS.

WINDOW LIFT.

yAPPLICATION PILE-D Nov. 24, 1905.

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CLYDE MICHAELIS, OF OMAHA, NEBRASKA.

WINDOW-LIFT.

Specification of Letters Patent.

Paented oct. 16,1906.

Application led November 24, 1905. Serial No. 288,894.

To all whom t may concern:

Be it known that I, CLYDE MICHAELis, a citizen of the United States, residing at Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in VVindow-Lifts, of which the following is a specification.

My invention relates to improvements in window-lifts; and it consists of the construction and arrangement of parts described herein, and illustrated by the drawings, wherein- Figure 1 represents a vertical side view of the invention and a sectional view of a window-sash and window-sill. Fig. 2 represents a front view of the invention; and Fig. 3 is a sectional view of the lifting-lever, bisected on the line c t of Fig. 1. Fig. 4 is a perspective view of one of the two side pieces employed in the construction, showing the inner wall thereof to illustrate Jformation of sleeves. Fig. 5 is a front viewof the liftingblock to illustrate formof arms thereof. Fig. 6 is a perspective view of the lifting-block.

The object of the invention is to provide an implement adapted for raising windows which may have become adhesive from presence of paint or varnish at contacting points of the window-sash with the frame or other causes, which may be effective, and by reason of the particular manner of construction may be very'cheaply constructed.

The parts consist principally of actuatinglevers and a frame therefor, the frame being provided with a hand-rest for sustaining the frame in operative position, to ether with other parts now to be fully descri ed.

I construct a framework consisting of the side pieces 1 and 2, the base 3, and headpiece 4. The side pieces are held together by rivets therethrough at 5, 6, and 7 and are firmly sustained in their positions by sleeves 9, 10, and 11, constructed, preferably, integral with one of the sides, as side 1. The rivets pass through the sleeves, and upon each of the inner faces of sides 1 and 2 near their front edges I construct the longitudinally-extending groove 13, each groove being formed between flanges 32 and 33. I provide a fulcrum-lever 14, having arms 15 and 16, and between these arms is pivotally mounted at 18 the lifting-lever 17. The base of the fulcrum-lever is pivotally mounted at 8, and the pivot which furnishes this mounting is preferably formed integral with the base of the fulcrum-lever, and since said pivot has bearings through side pieces 1 and 2 thel support is adequate to sustain the strain coming thereon when the levers are operated.

I provide the lifting-block 19, having the arms 20 and 21, and between these arms one end of lifting-lever 17 is pivotally mounted. The lifting-block is provided with the angularly-extending contact-lug 22, reinforced by the bracket 23, integrally constructed therewith. I provide the ball 24, formed, preferably, as a part of the head-piece 4. The side pieces 1 and 2 are provided with the supporting- plates 26, 27, 28, and 29, adapted to support the side pieces 1 and 2 firmly in their relative positions.

In constructing the device economy of labor and material has been observed, and since the sleeves are constructed integral with one of the side pieces said side pieces are sustained relatively parallel in a substantial manner. ,The lifting-block 19 is provided with lugs 30 and 31, adapted to travel in grooves 13 of sides 1 and 2, the arms 2O and 21 being formed convergingly from their bases to their outer ends in a manner to lessen frictional contact with the adjacent fianges 32 and 33 during such travel. I provide the reinforcing- plates 34 and 35 upon the sides, respectively, of side pieces 1 and 2, to furnish additional bearings for the base of the fulcrum-lever pivotally mounted therein.

It will be noted that the construction permits-a dropping of the contact-lug to an altitude substantially level with the base 3 and that the fulcrum-lever 14 is adapted to have a movement in common with lever 17, thereby allowing a smooth sliding` movement of the parts when raising the block.

Fig. 1 shows a window-sill 36, upon which the invention maybe operativelyplaced adj acent to the lower part of the wind ow-sash 37. The sash is generally provided with a metallined recess 38,' but in the use of the invention where no such provision has been made a recess is to be angularly formed, as indicated, for engagement therein of contact-lug 22, and as thus arranged the invention may operate as a convenient and effective means for raising windows when the sash has become adhesive.

What I claim as my invention is- 1. A device for the purpose described, having a frame consisting of a base, headpiece, and two adjacently-disposed longitudinally-grooved and rigidly-connected side IOO IIO

pieces; a lifting-block having an angularlydisposed contact-lug formed on its outer face and having a lug formed on each of its ends adapted to have a bearing within the longitudinal grooves of said side pieces; a liftinglever between said'side pieces having oneend pivotally connected with said `lifting-block; a fulcrurn-lever having one end pivotally connected with said lifting-leverthe opposite.

yangularly-disposed Sleeves; said side pieces 'being adjacently disposed, longitudinally lgrooved and rigidly connected by rivets passing within said angularly-disposed sleeves; a

lifting-block having an angularly-disposed contact-lug formed on its outer face and having lengthwise-extending lugs formed on each of its ends adapted to have a seating within the longitudinal grooves of said side pieces; a lifting -lever between said side pieces having one end pivotally connected wi th said lifting-block; a fulcruIn-lever having one end pivotally connected with said lifting-lever, the opposite end of said fulorurnlever being pivotally mounted upon the side pieces of said frame.

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

CLYDE, MICHAELIS. Witnesses:

ARTHUR STURGEs, HIRAM A. STURGES.

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