US3150420A - Spring wiping device for windows - Google Patents

Description

SePt- 29, 1964 A. BRENNER 3,150,420

SPRING wIPING DEVICE FOR wINnows Filed Deo. l0, 1962 'Il'li m 'Il' Il 'lle qMf// wwf/N5 y 7 Q 4 se 55 "5e 'F V A w il a F IG. 2

* al l 2O INVENTOR. le// AL BRENNER BY v www w @l mgm@ United States Patent O 3,150,420 SPRING WIIING DEVICE FOR WINDOWS Al Brenner, 701 N. Shore Drive, Miami Beach, Fla. Filed Dec. 10, 1962, Ser. No. 243,228 1 Claim. (Cl. 20-52) This invention relates to window structures and is more particularly directed to a spring wiping device for vertical sliding sash windows.

A principal object of the present invention is to provide a vertically sliding sash window with spring wiping devices for maintaining the flat spiral coil counter-bal lancing springs in a clean and expurgated condition.

Another object of the present invention is to provide the flat spiral coil counter-balancing springs of a vertically sliding sash window with wiping devices which clean both sides of the spring simultaneously upon sliding movement of the sashes.

A further object of the present invention is to prevent the mal-functioning of the flat spiral coil counter-balancing springs of :a vertically sliding sash window by maintaining the springs free of dirt, moisture `and other foreign matter.

A still further object of the present invention is to provide the flat spiral coil counter-balancing springs of a vertically sliding sash wind-ow with an elongated cleaning device having fabric pile thereon which supports the rotatably positioned springs and wipes the dirt on both sides of the spring as the sash is slid to its open or closed position.

With these land other objects i-n view, the invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawing forming .a part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing of the drawing but may be changed or modified so long as such changes or modifications mark no material departure from the salient features of the invention as expressed in the appended claim.

In the drawing:

FIGURE 1 is an inside or rear elevational view of a single hung window.

FIGURE 2 is `a fragmentary view of the window at the position of the spring wiping device shown partially in section taken along the line 2-2 of FIGURE 3.

FIGURE 3 is a cross sectional View taken along the line 3-3 of FIGURE 2.

FIGURE 4 is a perspective view of my spring wiping device.

Referring to the drawing wherein like numerals are used to designate similar parts throughout the several views, the numeral v refers to a vertical sliding sash window, a single hung window, which is shown by way of illustration only consisting of a conventional window frame 11 in which ya fixed sash 12 is positioned at the upper half and a sash or vent 13 is slidably positioned in a slot 14 of the frame 11. The slidable sash 13 is normally positioned in the lower half of the frame 11 when in a closed position and when slid upwardly to overlap the upper vent 12, the vent 13 is in its open position.

Means are provided to counter-balance the weight of the slidable vent 13 in order to require a minimum of eifort to open and close the sash 13 comprising a flat spiral spring 15 wound in a coil 28 and positioned in a receptacle 16 `at both of the upper corners of the frame 11. The receptacle 16 consists of a bottom wall 17, end wall 18, side walls 19 and 20 and intermediate wall 21. The top portion of the receptacle 16 is open being removably covered by a cap 22 as shown by FIGURES 2 3,150,420 Patented Sept. Z9, 1964 and 3 and the edge portion opposite the wall 18 is likewise open. The receptacle is fastened to the frame 11 by a bolt 23 which extends through a bore in the lower wall 17 between the walls 20 and 21 and is threaded into a window frame wall 24 of the slot 14. An opening 25 is formed in the wall 24 adjacent the upper inside corners of the frame 11 to permit 'access to the elongated at coil spring 15 which reposes in the chamber 26 formed by the side walls 19, 21, bottom wall 17 and end wall 18. The bottom wall 17 is provided with an upwardly extending lug portion 27 which in combination with the bottom wall 17 supports a wiping member 30.

The wiping member 30 consists of .a fabric pile material 31 glued or otherwise -secured to a support member 32. The support member 32 is preferably a fiat strip of metal having a hump or elevated portion 33 for rotatably supporting the coil of flat spring 15. A screw bolt 34 extending through the bottom wall 17 of the receptacle 16 secures the wiper member 30 within the receptacle 16.

Secured by a screw 35 to the top edge of the vent 13 at each side thereof in proximity of the slotted portion 14 of the frame 11 is a bracket 36 provided with a hook member 37.

The free end of the spring 15 which extends downwardly along the slotted portion 14 of the frame 11 is fastened by a screw 38 to a catch member 4l) which releasably engages the hook member 37. The flat spiral coil spring 15 exerts a force in an upward direction to cause the coil portion 28 of the spring 15 to rotate and wind upon itself the downwardly extending spring 15. This force of the two coil springs 15 which yieldingly urges the vent 13 in an upward direction is slightly less than the force necessary to slide the vent 13 in an upward or downward direction.

As the vent 13 slides upwardly and downwardly both of the coils 28 of the spring 15 will rotate on the wiping members 30 whereby the outer surface of the spring 15 becomes clean by being wiped'by the pile 31. At the same time the pile 31 at the free end of each of the support members 32 beyond the elevated portion 33 wipes the inner surface of the spring 15 as the latter slides along the slotted portion 14 in either upward or downward direction. Any dust, grime or other foreign matter which may settle on the springs 15 will be wiped off, thereby maintaining the coils 28 and springs 15 clean of all foreign matter at all times. If dust, grime or other foreign matter is permitted to adhere to the springs 15 and become wedged between the various layers of coils 28 of the springs 15, the return forces of the springs 15 will become diminished `and also unbalanced on each side of the vent 13. Eventually suicient grime and dust positioned between the coils 28 of the springs 15 will reduce the return or upward force of the springs 15 to zero `and will instead of counter-balancing the vent 13 be an added resistance that must be overcome in the opening and closing of the vent 13. During movement of the vent 13, the wiping members 3i) wipe oif any dust or other foreign deposits on both sides of the springs 15 so that the force exerted by the springs 15 will be the same and equal at all times. Also without the wiping action of my wiping device 30 if one of the coil springs 15 should become fouled with dirt and grime while the other does not, then the upward forces exerted at each edge of the vent 13 will become unbalanced to render it difficult to slide the vent 13 properly.

As indicated hereinabove, the single hung window 10 is shown by way of illustrating my spring wiping device 30. My spring wiping device 30 may be used in connection with any vertical sliding sash windows utilizing at spiral coil springs 15 for Counterbalancing the vertically slidable 4sash or Vent 13.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

A vertical 4sliding sash window comprising a frame, a sash slidably mounted in said frame, a receptacle mounted on said frame above Vsaid sash, said receptacle 'having an opening, a at 'coil spring positioned in said receptacle, `said flat coil Vspring having an end portion extending through said opening in ysaid `receptacle and downwardly along said 'frame to said sash, releasable means securing said end portion of said at coil spring to said sash, a cleaning member mounted 'in said receptacle and supporting said fiat coil spring, said cleaning member having a substantially at portion beneath said 'at coil spring and an elevated portion extending outwardly of said opening in said receptacle, said cleaning member having pile means engaging said at coil spring positioned in said receptacle and said end portion whereby sliding movement loE-said Vsash causes said spring to Imove along said cleaning member to be cleaned on both sides.

References Cited in the file of this patent AUNITED STATES 4PATENTS 1,745,578 Kreissig Feb. 4, 1930 2,035,379 Stewart Mar. 24, 1936 2,635,282 Trainmel et al Apr. 21, 1953 2,876,471 Kraemer Mar. 10, 1959

Images