US1574970A - Suction sweeper - Google Patents

Description

March 2 1926. 1,574,970 H. c. HETTELSATER SUCTION SWEEPER Filed Feb. 5. 1923 Willi] HC Patented Mar. 2, 1926.

UNITED STATES PATENT orrics.

HENRY O. HETTELBATEB, F CANTON, OEIOrASBIGNOB 1'0 THE HOOVER (MIRA NY, A.

qonromnon or 0310.

semen SWEEPEB- Application filed February a, 1m. Serial in. 016,053.

' To all whom it may concem:

v Be it known that I, HENRY C. Hrrrrnn- I ,sn'rns, a citizen of the United States, and a resident of'Canton, in the county of Stark and State of Ohio, have invented new and useful Improvements in Suction Sweepers of which the following is a full, clear, and exact description.

This invention relates particularly to meanefor adjusting thenozzle of a suction sweeper by raising and lowering the same with relation to the surface to beoperated upon.

It is common practice in the manufacture of swee' ers'to provide at the front part of the mac ine a pair of axially arranged supporting rollers or wheels adjacent the nozzle,

' and to provide one or more supporting 7 supporting member, a v

' front of the machine, the U-shaped wheels positioned toward the rear of the machine. a

To raise or lower the nozzle with relation to the car st or object! to be cleaned, means are embo ied to'rai'se or lower the axis of either the front or rear wheels. 7 An olject of this invention is to devise means 0 improved construction for ad'usting the axis of one of the supports of device and which shall be positive in its operation and sim Is in its construction.

Another object is to make the adjusting device quickly and-lea'sily operable to secure the desired adjustment, and toso construct the same that 1t will bravery-securely locked in the adjust'ed position to.ma'intain the nozzle in any position given it with relation to the surface to be cleaned.

Theabove and other objects will become taken in connection with the accom an drawings in the diiferent. res 0 w the same p e In'the drawings :-v

,gFigure 1 is a side elevation of a suction sweeper showing the application of my invention,

f Figure 2 is substantially an elevation of the adjusting mechanism viewed fromthe "supporting member being shown in section, Figure 3 is a pla'n view of the U-shaped the reference 'numera s indicate like Figure 4 is a side elevation of the member shown in Fi 3, a

Figure 5 is an edge elevation of the adjustlng strap, and

Figure 6 1s a face elevation of Fig. 5.

Fig. 7 is a rear elevation of the machine with detail omitted.

Designating the arts by reference characters, 10 indicates t e motor-housing and 11" the fan-chamber, 12 the intake nozzle, 13 the discharge-mouth. v

The above elements are essential parts of practicall all suction cleaners manufactured. e fan-chamber 11, intake-nozzle 12, and discharge-nozzle 13 are usually cast as an integral unit or so connected together as to form a rigid frame which is supported adjacent the intake nozzle by separated wheels 14 mounted 'on axle member 15 suitably connected to the cleaner frame.

Rearwardly of the wheels. 14 and preferably positioned to run between the path of the wheels 14 are a air of separated wheels 16. To raise and ower the intake nozzle with relation to the surface to be operated upon,means are provided for vertically adjusting the axis of the rear'wheels 16. a

My invention is concerned with anovel mechanism forraising and-lowering the rear portion of the frame of a cleaner and with means for locking the adjusting mechanism' securely in adjustedposition."

' A articular structure for accomplishing the o gects of myinvention will now be describe;

' The rear portion of'the frame of a cleaner is an Elorted on wheels 16 which are secured hence the dischargemouth 13 by means of a bracket 17 Whidhilfi suitably. secured to the underside of thegdischargemouth bymeans; not shown. The 'lowerend of the bracket 17 carriesa pivot 18 on which are mounted links 19 carrying at the other end thereof anaxle 20 on' which the rear wheels 16 are 'ournalled, Secured to one end of axle 20 1s the adjusting strap 21 which isa substantially-flat sheet-metal strap meznber having one end turned at right angles as at'22. The bent end 22' of he ad usting strap'member 21 is provided with a slot ggsignated at 23, the purpose of which will ascribed and become apparent as the having one leg thereof 29,

number 26.

specification proceeds. The longer, substantially-straight part of the ad usting-strap 21 is provided with a longitudinal slot 24.

and has provided on its face adjustment indicating numerals indicated as a whole by .The lower end of the strap is rovided with a circular opening 27.

or the purpose of supporting the ad usting mechanism and for securing the same to the frame of the cleaner, there is provided a substantially U-shaped stra" member 28 ormed of a greater length than the other one 30. The end of the leg 29 is bent at right angles and is provided with a hole designated 31, the purpose of which is to; receive a 'bolt for securing the U-shaped member 28 to the frame of the cleaner. The other leg 300i this member has the end portion thereof bent at an acute angle and is provided with an opening 32 whereby this end of the support member may be secured to the frame of the cleaner by means'of a rivetor otherwise. The leg 29 of the U-shaped piece is provided with a relatively large aperture 32 and the leg 30 with a screw-threaded aperture 33, the purposes of which will become apparent as the descri tion proceeds.

There is further provide a stamped member 34 provided with two legs 35 and 36 directed at right angles to one another. Leg 35 of this member is rovi-ded with a screwthreaded aperture 3 and leg 36. is provided with an a erture 38. The remaining portions of t e structure comprise two screws, one 39 having preferably a quickacting thread, and provided "near the u per end with a recess 40 which receives t e slotted end 23 and the strap 21. The other screw comprises a short threaded member 41 provided with a head 42 and a'flange-like portion 43. v

For the adjustment of the nozzle of the cleaner,, the 'members mentioned are assembled in the following manner. U-shaped member 23 is attached at 31, 32, to the main frame of the cleaner. 'Member 21 is inserted between the legs of the U-shaped member and member 34 isalso inserted between the legs of the U-shaped member tothe rear of member 21. The screw 39 is entered sljghtl intoscrew-threaded aperture 37 and the Us a ed recess 23 of member 21 is seated in the neo red or recessed portion 40 .of screw 39. Screw 41 with wing-head 42 is then inserted through aperture 32 in the U-shaped member, slot 24 in the adjusting strap member, aperture 38 inthe member 34, and the end threaded into screw-threaded aperture 33 in the rear leg 30 of the U-shaped member. The adjusting strap is then positioned so that the aperture 27 in the lower end fits on the end of axle 20 and is secured thereon by springring, spring-washer, cotter, or other similar securing means.

To adjust the nozzle of the cleaner, winghead 42 is loosened and screw 39 turned either clockwise or counterclockwise depending upon whether it is desired that the adjustment should be lower or higher. When the proper adjustment has been obtained, wing head 42 is tightened, clamping adjusting member in position. The change in angular position of the strap 21 is taken care of when adjustment is being made due to the fact that when wing screw 41 is loosened, the angle member 34 is not held securely in position but may also have angular movement; thus as the strap 21 pivots about the screw-threaded portion of wing screw 41, it takes care of the eifect of the change in angularity of strap 21 by pivotin about its supporting member 41.

It will be seen that I have provided a very simple at easily operable means where by the nozz e of a suction sweeper may be adjusted by an adjustment of the rear wheels ithereof and one which when the adjustment is made is securely locked in such adjusted position.

I claim:

1. In a suction cleaner, a main body casting, front and rear supports therefor, the

rear support bein mounted on a member pivotall mounte on the body casting, means or adjusting the rear support relatively to the main casting comprising a pivot on the main casting, a strap pivotally connected to the rear support and slidably and pivotally mounted on the pivot, a iv oted member mounted on the pivot, anlfan adjusting member connecting the strap and pivoted member. 2. The combination with a suction cleaner, having a nozzle of means for adjusting the nozzle height comprising a pivoted su port member, an adjusting strap secured 51ersto, a second pivotally mounted member, adjusting means connectin said adjustin strap and said second pivotally moun member and separate means for securing said adjusting strap and said second ivotally mounted means in adjusted position.

3. In a suction cleaner having a nozzle, means for varying the height of the nozzle comprisin a pivot, a support pivotally mounted thereon, a second pivot comprising a clamping screw, an" ad usting -strap secured to the support and pivoted on the second pivot, an angle member mounted on said second pivot, an adjusting screw mounted inthe adjusting strap and screw threadedly connecting with the angle member and means associated with said clampingscrew to clamp the adjusting stra and angle member at any particular ad usted position. I

4. In a suction cleaner comprising a rigid frame havin a forwardly extending suction mouth, forward support mcans'lnounted adjacent said suction mouth and rear support means mounted upon a movable axle pivotally mounted in relation to said frame, a link comprising the member connecting the axle to the frame, an adjusting device comprisin a bracket secured to said frame, two mem ers pivotally mounted on said bracket, one of said members being capable of sliding relative thereto and pivotally secured to said movable axle, means 10 co-acting with said two members to produce a relative motion between them and means co-acting with said bracket to lock said sliding member in any desired" position.

WILLIAM D. HAMERSTADT.

ed adjacent said suction mouth and rear capable of sliding relative thereto and pivsupport means mounted upon a movable axle otally secured to said movable axle, means 1 pivotally mounted in relation to said co-acting with said two members to produce frame, a link comprising the member (1011- a relative motion between them and means necting the axle to the frame, an adjusting co-acting with said bracket to lock said device comprising a bracket secured to said sliding member 1n any desired position. frame, two members pivetally mounted on said bracket, one of said members being VILLIAM D. HAMERSTADT.

CERTIFI GATE 0F CORRECTION.

Patent No. 1,574,970. 7 March 2, I926.

HENRY C. HE'I'IELSATER.

It is hereby certified that the signature of the patentee at the end of the specification in the above numbered patent was erroneously printed as William D. Hamerstadt whereas said name should have been printed as Henry C. Hettelsater; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of October, A. D. 1932.

M. J- Moore, (Seal) Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

Patent No. 1,574,970. March 2, 1926.

HENRY C. HET'IELSATER.

it is hereby certified that the signature of the patentee at the end of the specification in the above numbered patent was erroneously printed as William D. Hamerstadt whereas said name should have been printed as Henry C. Hettelsater; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of October, A. D. 1932.

M. J. Moore, (Seal) Acting Commissioner of Patents.

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