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Publication numberUS1143491 A
Publication typeGrant
Publication dateJun 15, 1915
Filing dateJun 17, 1914
Priority dateJun 17, 1914
Publication numberUS 1143491 A, US 1143491A, US-A-1143491, US1143491 A, US1143491A
InventorsEdward P Bidwell
Original AssigneeEdward P Bidwell
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1143491 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



1,143,491. I PatentedJune 15, 1915.




Specification of Letters Patent. Patented J 119 15, 1 915,

- Application filed June 17, 1914'. Serial No. 845,649;

To all whom it may concern:

Be it known that I, EDWARD P. BIDWELL, a citizen of the United States, residing at Monrovia, in the county of Los Angeles and State of California, have invented certain new and useful Improvements in Wind- Shields, of which the following is a specification.

My invention relates to new and useful improvements in wind shields, automobiles, boats and other vehicles and resides in the provision of a wind shield that is so constructedand arranged as to prevent the accumulation of moisture thereon'so that the operator of the vehicle may clearly see through the shield and thus avert possible accidents which often result through failure of the operator to see through a 'moist shield.

Another and more specific object is to provide a ,shield that consists of a double pane mounted within a frame, said panes being spaced to provide an air space and a heating element being arranged at the bottom of the space between the panes so that the panes will be heated and moisture prevented accumulating thereon.

Another object is to provide a device of the character described that is of extremely simple construction, may be easily assembled and disassembled and a so attached and detached to the vehicle, and which is inexpensive to manufacture.

The'above and additional objects are accomplished by such means as are illustrated in the accompanying drawings, described in the following specification and then more particularly pointed out as claimed.

With reference to the drawings, wherein I have illustrated the preferred embodiment of my invention as it 1s reduced to practice, and throughout the several views of which similar reference numerals designate corresponding parts, Figure 1 is a front elevation of my wind shleld, Fig. 2 is a horizontal sectional view showing the heatin element in the bottom of the shield, an Fig. 3 is a vertical sectional view taken through myimproved wind shield.

Referring to the drawings by characters of reference, the numeral 1 designates as an entiretya rectangular frame which consists of vertical end bars 2 and horizontal top and bottom bars 3 and 4. The bars 2 are provided at their longitudinal edges with 5 right angularly extending flanges 5. Theflanges 5 on one of the bars 2 are arranged in pairs so 'as to provide window pane receiving grooves, while the flanges 5 on the other of the bars 2 are arranged to c06perate with flanges 6 formed on the longitudinal edges of a rectan ular strip 7 that are secured in any suitab e manner upon the inner face of said last nained side bar. The last named of the side bars 2 is removable and said removable baris provided with buttons 8 to be grasped to effect the removal. Mounted between the flanges 5 and '6 are panes of glass 9 and 10 which are spaced considerably and at their upper and lower edges engage within channel-shaped bars 11 and 12 which bars are carried-by the bars 3 and 4 or may be formed by bending said bars 3 and 4 along their longitudinal edges into such channel shape.

The bars 3 and 4 are approximately semicircular in cross section and mounted within the lower bar 4: is a heating element designated 13 as an entirety which comprises a suitable cylindrical core in which is mounted a wire which is given a number of turns or in other words is coiled about the core.

The wire is designated 14 and is connected I with a suitable source of current 15 at its free end. A one point switch 16 is connected in one side of the circuit from the battery or other suitable source of current 15 and is preferably arranged adjacent to the operators seat of a vehicle, n0t shown, so that should the glass panes 9 and 10 become moist the operator can readily close the circuit through the medium of the switch 16 and the heating element 13 will heat the panes 9 and 10 thus preventing moisture accumulating on the shield. V

, It isto be understood that any desirable form of electrical heating element may be employed and that the lower bar may be insulated after a manner not shown, in any suitable manner so as to support orrhouse the heating element. a

In practice, I have found that the form of my invention, illustratedrin the drawings and referred to in the above description, as the preferred embodiment, is the most efficient and practical; yet realizin that the conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be recarried by the opposed bars, panes carried by the supporting loars and spaced from one another and a heating element carried by the lower of the bars and disposed below 10 the lower edges of the panes.

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


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2933024 *Feb 7, 1955Apr 19, 1960Baggs Albert JApparatus for photographing the interior of a pipeline
US5166497 *Jun 21, 1991Nov 24, 1992Raychem GmbhFacade heating
U.S. Classification219/203, 219/522, 296/96.14, 296/96.15
Cooperative ClassificationH05B3/84