US1730465A - Windshield wiper - Google Patents

Description

' Oct. 8, 1929. T. LocHRlE wINDsHIELD wiPER vFiled Nov. 30, 1927 Patented ocr. s, 1929 UNITED STATES PATENTy oFFlca THOMAS LOCHBIE, OF WINDBER, PENNSYLVANIA, ASSIGNOB, BY DIRECT AND MESNE v ASSIGNMENTS, TO WINDBER MANUFACTURING CO., OF WINDBER, PENNSYLVANIA,

A CORPORATION OF DELAWARE WINDSHIELD WIPER Application :Bled November 30, 1927. Serial No. 236,771?.

This invention provides an article designed I chiefly for cleaning windshields of motor vehicles and includes a body, a flexible wiper l f and a heater for melting frost in cold weather.

The invention contemplates the provision of a wiper which is light, neat, and composed of a few number of parts which may be readily assembled and replaced should occasion arise.

While the drawing illust-rates a preferred embodiment of the invention, it is to be understood that in adapting the means to meet specific needs and requirements the design may be varied and such other changes in the minor details of construction may be resorted to within the scope of the invention as claimed, without departing from the spirit thereof.

For a full understanding of the invention and the merits thereof,reference is to be had to the following description and the drawing hereto attached, in which,

Figure 1 is a side view of a windshield wiper embodying the invention.

Figure 2 is a front view thereof.

Figure 3 is a central, longitudinal, sectional view of the device.

Figure 4 is a transverse sectional View on the line 4-4 of Figure 3.

Figure 5 is a perspective View of an end portion of the body and the cap plate, the latter being detached and set ofi' from the bod Figure 6 is a front view of a modification.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawing by like reference characters.

The numeral 1 denotes the body of the device which is alongated and molded in the required shape of suitable insulating material capable of resisting heat and moisture. The front of the body is flat and its rear is contracted and of rounding form, as illustrated most clearly in Figure 4 of the drawings. Grooves 2 are formed in the face of the body 1 adjacent the sides thereof, and

Vextend substantially the entire length of the body and are adapted to receive flexible strips 3, preferably of rubber, which may be retained in place in any determinate way, as byl means of a suitable cement. A longitudinal recess 4 is formed in the face of the body 1 intermediate the grooves 2 and is `of a i depth and width to snugly receive an electric heating element 5 consisting of a coil of wire of suitable gage. The heating element 5 1s attached at its ends to the bodyl by means of screws 6. An end of the body 1 is cut. away and is `fitted with a cap plate 7 which is -retained in place by means of screws 8. The meeting faces of the cap plate 7 and the cut away portion of the body are grooved as shown most clearly in Figure 5 of the drawings to provide an opening for the pas sage of an electric cord 9, by means of vwhich the heating element 5 is connected with the source of current supply. One of the strands, as 10, of the electric cord 9, is connected to an end of the heating element 5 by ineans of a screw 6. The other strand 11 of the electric cord 9 passes through an opening 12 formed in the body 1 adjacent the cut away end thereof and is received .in a channel 13, formed in the body and in communication with the recess 4. The channel 13 is of a depth to space the strand 11 from the heating element 5 to prevent interference. The strand 11 is connected to the opposite end of the heating element 5 by means of la screw 6. The opening 12 communicates with the opening formed by the matching grooves formed in the meeting faces of the cap plate 7 and the cut away end portion of the body 1.

A metal ear 14 is molded to the body 1 and.i receives the arm 15 which forms connecting` means between the wiper and the motor, not shown. Threaded `socketsare molded within the body in position to receive the several screws 6 and 8. v e g,v By having the heating element 5 disposed vof the parts being readily replaced should it become necessary for any reason.

In the modification shown in Figure 6 the heating coil receives a core 16 which passes therethrough. Thisv core may be of any suitable insulating and heat resisting material and forms a support for the coil and prevents any sagging thereof. The fastening means for securing the heater to the body may include the screws 6 and eyes 17 formed at the ends of the core 16. The screws or fastening elements 6 admit of ready attachment and detachment of the heater and form electric connectors between the resistance and the conductors 10 and 11.

Having thus described the invention, I claim:

1. A windshield wiper comprising an elongated body of insulating material having a recess formed in a side thereof and terminating a short distance from the ends of the body, and having a channel paralleling and in vcommunication throughout its length with the said recess, a conductor at one end of the body, a companion conductor in the channel and terminating at the opposite end ofthe body, a heating element readily insertiblein and freely removable from the said recess, and fastenings connecting the terminals of the heating element and the ends of the conductors to one another and to the body.

2. A windshield wiper comprising an elongated body having a flat face, in which are formed spaced longitudinal grooves and an intermediate longitudinal recess and channel, and having a portion of the flat face cut away at one end, flexible strips secured within the longitudinal grooves, a heating ele.- ment disposed Within the longitudinal recess,

an electric cord having one st-rand connectedwith one end of the heating element and having the other strand housed within the said channel and connected with the opposite end of the heating element, and a cap plate fitting ythe-cut away end of the body and secured thereto and serving to confine the electric cord.

3. A windshield wiper comprising an elongated body having a flat face in which are formed longitudinal grooves and an intermediate longitudinal recess and channel, and having an end portion cut away and depressed in its face adjacent the cut away end,

securing the ends of the heating element and strands of the electric cord to each other and to the ends of the body in line with and beyond the longitudinal recess.

4. A windshield wiper comprising an elongated body having a fiat face in which are formed longitudinal grooves and an intermediate longitudinal recess and channel, and having an end portion cut away and depressed in its face adjacent the cut away end, .and having an opening formed in the depressed end leading into said channel, flexible strips secured inthe longitudinal grooves, a heating element disposed in the said longitudinal recess, an electric cord having its strands engaging the ends of the heating element, one of the strands passing through the opening in the end of the body adjacent the cut away portion thereof and housed in the channel, a cap plate secured to the cut away end of the body and confronting the end of the electric cord, and screws securing the ends of the heating element and strands of the electriccord to each other and to the ends of the body in line with and beyond the longitudinal recess, said ends of the body being depressed to accommodate the heads of the screws and prevent their projection, and the meeting faces of the cap plate and cut away end of the body being formed with matching grooves 'to form an opening to receive the end of the electric cord. l

5. A windshield wiper comprising an elongated body of insulating material, a wiper element carried by the body, a heater consisting of a resistance element in the length of the body and paralleling the wiper element, electric conductors, and fastening elements detachably connecting the conductors and resistance4 element to the body andl forming electric connectors between the said conductors and resistance'element.

In testimony whereof I affix my signature.

' THOMAS LOCHRIE. [La]V and having an opening .formed in the depressed end leading into the said channel, flexible strips secured in the longitudinal grooves, a heating element disposed in the said longitudinal recess, an electric cord having its strands engaging the ends of the heating element, one of` the strands passing through the opening yin the end of the body adjacent the cut away` portion thereof and housed in the channel, a cap plate secured to .'lflfftha cutaway end of the body and confronting the yend of the electric cord, and screws

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