US1192949A - Suction-sweeper. - Google Patents

Description

J. M. SPANGLER.

SUCTION SWEEPER.

APPLxcATIoN FILED SEPT. 3, 1914.

1,1 92,949. PatentedAug. 1,1916.

a specification.

-UNITED STATES PATENT OFFICE. i

JAMES M. SPAN GLER, 0F CANTON, OHIO, ASSIGNOR .TO THE HOOVER SUCTION" SWEEPEB u COMPANY, OF NEW BEIBLIN, OHIO, A CORPORATION OF OHIO.

SUCTIONSWEEPER.

Specification of Letters Patent.

Patented Aug. 1, 1916.

Application led September 3, 1914. Serial No. 859,949.

To all Ywhom 'it may concern:

lle itknown that I, JAMES M. SPANGLER, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented a new and useful Suction-Sweeper, of which the following is My invention relates to suction sweepers and more particularly to means for controlling the motor which operates the fan in the sweeper.

The object of my invention is to ,provide a suction sweeper in which the fan motor is controlled by the operating handle.

A further object is to provide a suction sweeper in which the fan motor is caused to operate when the handle is moved into the operative position and in which the motor is automatically stopped when the handle is raised into the inoperative position.

A stillfurther object is to provide a suction sweeper of the character referred to in which the handle is normally held in the inoperative position.

A still further object is to provide means whereby the circuit through the fan motor is completed when the operative handle is moved into the operative position and in which the circuit is broken when the handle is moved out of the operative position.

lV ith these objects in view the invention consists in the novel construction and arrangement of parts, hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the' form, proportions, size and minor details of'construction may be made without departing from the spiritor sacriicing any of the advantages of the invention.

In the accompanying drawings: Figure l is a perspective view showingthe operating handle in the inoperative position. Fig. 2 is a similar View showing the .operi ating handle in the operative position. Fig. 3 is a perspective View of the portion of` the switch which is carried upon the casing of the sweeper. Fig. 4 is a perspective View of `the portion of the switch which is carried upon the operating handlea Fig. 5 is a transverse vertical section through the portion of the switch shown in Fig. 3. Fig.

6 is a similar section showing the two switch members in engagement. Fig. 7 is an initerior face View., of one 'of the insulating showing the contact plate carried thereby. Fig. S is a similar view of the other insulating block and contact plate. Fig. 9 is a transverse vertical sectional view showing a means for normally holding the operating handle in inoperative position. Fig. 10 is a bottom plan view of the switch blades and insulating block bywhich they are attached to the handle. i

Similar numerals of reference indicate corresponding parts throughout the several figures of the drawing.

In the ordinary form of electrically operated suction sweeper it is necessary to provide some form of electrical switch upon the sweeper in order to turn on thev current provided means whereby the motor is started when the handle of the sweeper is lowered into the operative position and stopped when the handle is raised into the inoperative position and means for holding the handle in the inoperative positionwhen the sweeper is not -in use.

Referring more specifically to the construction illustrated Yin the 'accompanying drawings, the numeral 1,indic'ates generally the casing of a suction sweeper provided with the fan housing 2, motor 3 and dust receptacle 4 all of which. are-ofthe usual construction and need no further description here. The operating handle 5 of the sweeper, is provided withfthe bifurcated fork 6, the arms 7 of which are pivotally connected at `8 upon either side of the sweeper casing.

Two segments 9 and 10, formed of fiber segments 9 and 10 respectively. It should be noticed that the Contact plates 14 and l5 are located in an arc,l the center of which would be on a line connecting the two pivotal points 8 of the fork 6, the reason for this construction being hereinafter dcscribed and pointed out.

A cable 16, connected to any suitable source of electricity contains the wires 17 and 18 which are properly insulated apart. rIhe wire 17 leads to the motor 3 and the wire 18 is connected to the Contact plate 15 at 19. A wire 20 leads from the motor and is connected to the contact plate la at 2l.

The switch blade is formed `of a strip of conducting metal bent back upon itseli for a portion of its length, said portion'22 being located within a slot in the insulating bloc 23, said insulating block being formed of fiber or other suitable material. The switch blade is permanently held in position within the fiber bloclr 23 by means of a set screw or the like 24 and the switch block is connected to one of the arms 7 of the fork 6 which carries the operating handle by screws 25 and 26. The screw 26 passes through an enlarged aperture in the portion 22 of the switch blade in order that the screw does not contact with any portion ot the switch blade, for the purpose of preventing the arms 7 and other portions of the casing from becoming electrically charged. The ends of the strip which forms the switch blades are separated at the point where they emerge from the insulating block 23 and are slightly inclined toward each other as shown in Fig. 10, thus forming two integral spring blades 27.

A substantially triangular plate 28 is connected at its base to the casing 1 at a point adjacent the pivotal point of one of the arms 7 of the handle, preferabl by one of the screws 8 and a screw 29. n aperture 8O is located near the apex of the plate 28 and is adapted to accommodate a screw head 31 or other suitable lug provided upon the arm 7 when the handle 5 is raised into the inoperative position, thus holding the handle in the inoperative position. The upper rear edge of the plate 28 is turned outward at 32 to allow the screw head 3l to pass the plate 28 whenthe handle is raised in the position shown in Fig. l, the screw head 31 springing the upper end of theplate 28 outwardly until the aperture 30 in the plate registers with the screw head at which time the plate will spring bacll:v causing the screw head to enter the aperture 30 as best shown in Fig. 9 thus holding the handle in the upright position.

It will be seen that one end of the electrical circuit passes through the motor and connects with the contact plate 14 and the other end of the circuit connects with the contact plate l5 thus leaving the circuit open. When it desired to operate the sweeper the handle 5 is lowered into the position shown in lfig. 20E the drawing, the spring switch blade 27 contacting with the contact plates Fig. G of the drawing thus completing the electrical circuit and. starting the motor. As long as the machine is in operation, that is, as long as the handle 5 is held in operative position as shown in Fig. 2 which is the natural position when operating the sweeper the circuit will remain unbroken andthe motor will continue to revolve. When it is desired to discontinue the use ol the sweeper it is only necessary to raise the handle 5 into the position shown in Fig. l, at which time the switch blades 27 will be drawn out ot' contact with the contact plates 1J: and l5 breaking the circuit and stopping the motor,

the spring plate 28 holding the handle in this position and preventing the motor from being started until it is again desired to use the sweeper.

Although the drawings and above specification disclose the best mode in which I have contemplated embodying my invention I desire to be not limited to the details ot such disclosure, for, in the further practical application of my invention, many changes in form and construction may be made, as circumstances require or experience suggests, without departing from the spirit oi' the invention, within the scope of the appended claims.

1. In a suction sweeper, the combination of a motor casing and a fan casing, a motor, avhandle pivoted upon said fan casing, con tact plates carried upon said motor casing, an electrical circuit, one wire of said circuit passing through said motor and con nected to one of said contact plates, the other wire of said circuit connected to the other of Said contact plates and means upon said pivoted handle for completing said circuit, and means for normally holding said pivoted handle in the inoperative position.

2. In a suction sweeper, the combination of a casing, a motor pivoted upon said casing, a bracket carried upon said casing contact plates carried by said bracket, sai contact plates insulated from said bracket and from each other, an electrical circuit, one wire of Said circuit passing through said motor and connected to one of said contact plates, the other wire of said circuit connected to the other of said contact plates, an insulated block carried by said handle and a bifurcated switch blade carried by said insulated block and adapted to contact with i both of said contact plates when said handle is moved into the operative position.

3. In a suction sweeper, the combination of a motor casing and a fan casin a handle H and l5 as best shown in pivoted to the fan casing, a brac et carried of said Contact plates, an insulating block carried by said pivoted'handle, a bifurcated switch blade carried by said insulated block and adapted to contact with both of said contact plates when said pivoted handle is moved into the operative position.

4. In a suctlon sweeper, the comblnation of a motor casing and a fan casin a handle pivoted to the fan casing, a brac et carried upon said motor casing, contact plates car-` ried by said bracket, said contact plates insulated from said. bracket and from each other, an electrical circuit, one wire of said circuit passing through said motor and connected to one of said contact plates, the other wire of said circuit connected to the other of said Contact plates, an insulating block carriedby said pivoted handle, a bifurcated switch blade carried by said insulated block and adaptedl to contact Lwith both of said contact plates lwhen Said pivoted lhandle is moved into the operative position, and means for normally holding said pivoted handle in the inoperative position.

` 5. In a suction sweeper, the combination of a vfan casing and a motor casing',l a motor located within said motor casing, a handle pivoted upon said fan casing, a bracket carried by said motor easing, a segmental insulating block provided with a vertical slot, an electrical circuit, one wire of said circuit passingthrough said motor and connected to oneof said contact plates and the other wire of said circuit connected to the 'i other of said contact plates, a switch blade carried upon said pivoted handle and insulated therefrom andadapted to contact with said contact plateswhen the pivoted handle is moved into the operative position and means for normally holding'- said handle in inoperative position.

6. In a suction sweeper, the combination of a motor casing and a fan casing, a motor, a handle pivoted upon said fan casing, contact plates carried uponsaid motor casing,

an electrical circuit, one wire of said circuit v passing through said motor and connected to one of said contact plates, the other wire of said circuit connected to the other of said handle adapted to contact with both of said contact plates when said handle is moved into the operative position.

7. In a suction sweeper, the combination of a motor casing and a fan casing, a motor, a handle pivoted upon said fan casing, contact lates .carried upon said motor casing, an e ectrical circuit, one wire of said circuit passing through said motor and connected to one of said contact plates and the other wire of said circuit connected to the other of said contact plates, a switch plate upon said handle adapted to contact with both'of said contact plates when said handle is moved into the operative position and means for normally holding said handle in the inoperative position.

-In testimony that I claim the above, I have hereunto subscribedl my name. in the presence of two witnesses. v

JAMES M. SPANGLER.

Witnesses F. W. BOND, l' WILLIAM H. MILLER.

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