US3092868A

US3092868A - Suction cleaner

Info

Publication number: US3092868A
Application number: US725725A
Authority: US
Inventors: Descarries Raymond
Original assignee: Electrolux AB
Current assignee: Electrolux AB
Priority date: 1958-04-01
Filing date: 1958-04-01
Publication date: 1963-06-11
Anticipated expiration: 1980-06-11

Description

June 11, 1963 R. DEscARRlEs sUcTIoN CLEANER 2 Sheets-Sheet l Filed April l, 1958 M ww m E o 3fm M2M @am vll V ,/f 5 M2 f 6, VIM 6 d] Y G. F /m l\ I M F 4 Z w MM June 11, 1963 R. DEscARRlEs SUCTION CLEANER 2 Sheets-Sheet 2 Filed April l, 1958 lNvE TOR BY f/M M ,a

/ATTORNEY Unite States Patent O 3,092,868 SUCTION CLEANER Raymond Descarries, Montreal, Quebec, Canada, assignor to Aktiebolaget Electrolux, Stockholm, Sweden, a corporation of Sweden Filed Apr. 1, 1958, Ser. No. 725,725 7 Claims. (Cl. 15-327) My invention relates to suction cleaners and is especially concerned with elongated suction cleaners of the horizontal type.

An object of the invention is to provide an improved suction cleaner of the horizontal type which is of simplied construction and can lbe readily assembled.

Another object is to provide an improved horizontal type suction cleaner, having a casing provided with two top portions at different levels which are joined by a sloping wall portion, which is constructed in such a manner that the carrying handle of the cleaner is anchored at one end to the top portion at the higher level and at the other end to the top portion at the lower level and extends substantially horizontally from the higher portion over the lower portion.

Further objects and advantages of the invention will. become apparent as the following description proceeds, and the features of novelty which characterize the invention will be pointed out with particularity in the claims annexed to and forming a part of this specification.

For a better understanding of the invention, reference may be had to the following description taken in connection with the accompanying drawings, in which:

FIG. 1 is a side elevational -view of a suction cleaner embodying the invention;

FIG. 2 is a top plan view of the cleaner illustrated in FIG. l;

FIG. 3 is an enlarged side elevational view of the cleaner shown in FIG. l, partly broken away and in section, to illustrate parts more clearly;

FIG. 4 is a fragmentary top plan view, partly broken away and in section, of the cleaner shown in FIG. 3;

FIG. 5 is a fragmentary sectional view taken at line 5 5 of FIG. 4;

FIG. 6 is a sectional view taken at line 6 6 of FIG. 5;

FIG. 7 is an enlarged vertical sectional view taken at line 7--7 of FIG. 4;

FIG. 8 isa bottom plan view of parts shownin FIG. 7 looking upward from the top of the'cleaner casing;

FIGS. 9 and 10 are vertical sectional views taken at lines 9-9 and 10-10 of FIG. 7;

FIG. 11 is an enlarged Vertical sectional view taken at line 11-11 of FIG. 4 to illustrate parts more clearly; and

FIG. l2 is a vertical sectional view taken at line 12--12 of FIG. 11.

Referring to the drawings, I have shown my invention embodied in a horizontal tank-type suction cleaner comprising a casing 11, a front end cover 12 and rear end cover 14. The casing 11 is provided with a handle 15 and wheels 16 and 17 to facilitate movement thereof On a supporting surface, the wheels 17 being at opposing side walls of the casing and the single caster Wheel 16 at the Ifront end of the casing being disposed between the side walls of the cleaner.

.The front end cover 12, Which is removably secured to the casing 11 in any suitable manner, is formed with an inlet 1S to which a suction hose (not shown) is adapted to be removably connected. Suitable cleaning appliances may be connected to a -wand which in turn is connected to the outer free end of the suction hose and through which air flows into the front end of the casing by a suitable motor-fan unit 19 disposed therein. Dirt entrained 3,092,868 Patented June 11, 1963 "ice in air drawn into the inlet 18 is separated from the air when it passes through a dust collecting member 20, and air from which dirt has been removed is discharged from the casing 11 through an opening 21 in the rear end cover 14.

An electrical switch 22 is provided at the top of the casing 11 for controlling the supply of electrical energy through

conductors

23 and 24 to the motor-fan unit 19, as shown in FIG. 1l. The switch 22 comprises a part 25 formed of insulating material, the extreme left-hand and right-hand ends of which are indicated at 26 and 27, respectively, in FIG. 11. The left-hand portion of the part 25 provides an open-top receptacle 28 of rectangular shape having a bottom 29 and upstanding side and end walls 3) and 31, respectively, for housing suitable switch contacts (not shown) which are controlled by a manually operable member 32 having a top wall 4formed of two sections which slope upward from a central region of the member.

lI'he side walls 30 of the receptacle 28 are formed with semi-circular notches 33 in which rest outwardly extending lugs 34 of similar shape provided at the side walls of the switch operating member 32. yWith this construction, the member 32 is movable within the receptacle 28 about an axis coinciding with that of the lugs 34, the opposite ends of the member 32 striking the bottom 29 to limit ydownward movement of each half thereof. n

Over the right-hand portion of the switch part` 25 rests an apertured element 35, the latter and extreme righthand end of the part 25 -being formed to provide a cavity 36 into which extend electrical contact fingers (not shown).

.These contact fingers are connected by the

conductors

23 and 24 and other conductors, indicated at 37 and 38 in FIGS. 11 and 12, for example, to complete a circuit across the contact lingers for the motor-fan unit 19 when the switch operating member 32 is operated to close the switch 22.

As best shown in FIG. 11, a short lever arm 39, which is formed integrally with the switch operating member 32, extends downward from one of the lugs 34 and moves over the outer surface of a side wall 30 of the switch receptacle 28. The bottom pointed end of the lever arm 39is adapted to ride over a bump 40 formed in a leaf spring 41 whose ends are held in notches 42 formed in a side of the switch part 25. After the lever arm 39 rides over and depresses the bump 40 in the leaf spring, the latter rises suiliciently to hold the switch operating member 32 to the position to which it has just been moved.

If desired, the switch 22 may be arranged to open and disconnect the motor-fan unit 19 from the source of electrical supply when the front end cover 12, which may be hinged to the casing 11 in any suitable manner (not shown), moves from its closed position. Mechanism for opening switch 22 in this manner may Vinclude an elongated rod 43 which extends lengthwise of the casing 11 and is connected at one end at 44 to the outer end of the lever arm'39. The rod 43 extends to the vicinity of the front end cover 12 at which region suitable mechanism (not shown) may be provided to impart movement to the rod 43 toward the left in FIGS. 3 and 11 when the front end cover 12 moves from its closed posi. tion, such movement of the rod being effective to move the switch operating member 32 to open the switch 22.

Suitable mechanismof this type, which is constructed so that normal operation of the switch 22 by member 32 will not be affected when the front end cover 12 is closed, is described and illustrated in my copending application Serial No. 725,726, iiled April 1, 1958, now patent No. 2,921,153, granted January 12, 1960.

VIn accordance with my invention, a horizontally extending one-piece trim strip 45 i-s provided at the'top of l the casing 11 for mounting 4both the handle 15 and switch 22 on the casing 11. 'Ihe trim strip 45 is rigid and extends from one end to the opposite end ofthe casing 11, In the preferred embodiment illustrated, the trim strip 45 is of inverted U-shape and includes two sections at dilferent levels and a sloping portion therebetween. The trim strip section at the higher level is provided withv an elongated slot 46 at the region Iof 'the switch 22 and an opening47 at its juncture with the sloping portion. The opening 47 has -a iirst horizontally extending part extending lengthwise of the trim strip from i-ts sloping wall portion yalong the section at the higher level, and a second part extending vertically downward fronrthe forward end of the rst horizontal part -at the vicinity of the sloping wall portion, the two parts of opening 47 being disposed in planes intersecting one another. The outer end of the lower trim strip section is provided with an opening 48 at the vicinity of the front end cover.

Between the

openings

47 and 48 in the trim strip 45 lthe top surface thereof is depressed zand of concave shape to form a smooth-walled pocket 49 directly opposite the handle 15 which slopes downward from side edges of the trim strip to provide ample space for the back of a hand grasping the handle.

The handle 15 desirably is formed of a material, such as a suitable plastic, for example, to provide a hand grip Ywhich essentially keeps its shape and yet is slightly flexible and resilient in character to facilitate its connection to the rtrim strip 45; It ywill tbe seen that the forward part ofthe handle 15 -is almost perpendicular to the trim strip 45. The upper end, of the Yforwardpart of the handle is formed with a pronounced curve to provide a hand grip portion from which the handle slopes gradually downward to the higher trim strip section. The curvature of the handle =15 is greatest at the yforward hand grip portion having an average or mean Velevation substantially the same as that Vof the higher trim snip section.

The forward end 50 of the handle .15, which is essentially square, is Vformed with a shoulder 51 which lits snugly about the underside of the periphery of the trim strip opening 48. As seen in FIGS. 7 and 8, the forward end 50 of the handle 15- is recessed at 52 at the under- -side thereof and provided with intersecting ribs 53. One

l-wall 54 of the forward handle end 59 is longer than the others and rests against the top of lthe casing 11, as

shown in FIGS. 7 and 9. Y

The rear end portion 55 of the handle 15, which is generally rectangular and of the shape shown in FIGS. 7 and 8, is formed with a cavity or recess 56 at the underside thereof provided Vwith an elongated rib 57 dividing the recess into two parts. The pant `58 of the handle 15 immediately in front of the recess 56 rests against the forward peripheral edge at the bottom of the second vertically extending part of the trim strip opening 47 and is shaped to merge with the sloping wall portion of the trim strip.

The rear end portion 55 of the handle 15 is formed f with a shoulder 59 atthe top thereof which tits snugly against the rear peripheral edge of the tirst horizontally extending part of the opening 47, at the trim strip section at the higher-level, and the remaining `part of the rear end portion for-ms a lip 60 which is concealed from view and positioned between the underside of the trimr strip 45 and the top of the casing 11. The opposing sides of the rear end portion 55 of the handle 15 are formed with ledges 61 which serve as kguides when the handle is mounted on the trim strip and also function to hold the rear end portionof the handle :15 in position. As seen in FIGS. 8 and 10, the ledges 61 are locked against the peripheral side edges of the opening 47 at the underside of the trim strip V45. ,Furthen the forward edges of the ledges 61 hear against vertically extending shoulders 61b formed between the higher trim strip portion and a 'lower region 47a of the sloping wall portion of the trim strip, such lower region defining the forward edge of the opening 47. Y

The rear end portion 55 of the handle 15 is of such size that it can pass upwardly through the opening 48 in the trim strip 45 to position and locate the front portion 50 of the handle in its locked position at the underside 'of the trim strip, 'as shown in FIGS. 7 and 9. Since the opening 47 in the trim strip 45 includes a horizontal part at the higher level portion whichextends forward from the shoulder 59 in FIG. 7 and also a vertical part extending upward from region 47aVV in FIG. 7, as just explained, the rear rectangular-shaped por-tion 55 of the handle, the shape :of which is best seen in FIG. 8, canbe Y pushed rearward through the opening 47 so that the rear lip 60 will be positioned at the underside of the trim strip with the shoulder 59 engaging the rear edge ofthe opening 47. The width of the vertical part of the opening 47 is best illustrated in FIGS. 8 and l0 and is the same as the distance x between the exterior surfaces of the outside vertical walls of the rear portion 55 of the handle at the vicinity of the cavity 56 therein. Hence, the rear portion 55 of the handle 15 must be suciently resilient to -allow the ledges 61 to be squeezed and moved through the vertical part of the opening 47 in the sloping wall portion of the trim strip. This resiliency is obtained =by providing the cavity 56. To yfacilitate insertion of the rear portion 55 within the trim strip, the rear edges of the ledges 61 are 4beveled lat 61a, as seen in FIG. 8. After the ledges 61 move past the vertical part of the trim strip opening 47, the-forward ends of the ledges are held against the shoulders 61b at the immediate vicinity of the vertical part of the trim strip; opening 47. It will now be understood that the four-sided opening 47 has a portion of its periphery horizontally disposed and forming la lU at one level at the higher level top wall section, as best seen in FIGS. 2 and 10. In FIG. 10 the U part ofthe opening 47 in the trim strip 45 is disposed at 61e immediately -above the shoulders or lugs 61. Another portion of the periphery of the opening 47 in the trim strip 45 forms a side at a lower level at the sloping top wall section, as indicated at 47a in FIGS. 7 and 10. The side yof the opening 47 formed by the closed end of the U, Y

viills the opening 47 and extends lengthwise of and lbeneath the trim strip 45 past the side 47d, as seen inYFIG. 7. The side 47a of the opening 47 provides a support or'platform upon which the bottom of the Aend 55 of the handle 15 p rests.

The sides of the opening 47 extending lengthwise of the trim strip 45- Iand connecting the side 47d formed by the closed end of the U and the side 47a at the lower level `include that portion of the periphery of the opening 47 which is horizontally disposed at the one Alevel above the ledges `61 in FIG. 10 land formed by the spaced arms of the U, and that portion of the periphery of the opening which is vertically disposed and extends upward from the ends of the side 47a at the lower level, asY indicated at 61C in FIG. 10, the peripheral edges 61e merging with the spaced arms of the U horizontally disposed atv the level above the top of the Iledges 61. As seen in FIGS. 8 and l0, the shoulders or lugs 61 at the end 55 of the handle engage the underside of the ridge of the trim strip 45 at both the horizontally and vertically disposed por- `rtions of the periphery of the opening at 61e and 61h,

any suitable manner (not shown). However, the front end ring 62 may be fitted on the casing |11 in a manner similar to the rear end cring 63, as shown in FIG. 11 The rear end ring, which is suitably fastened to the interior of .the casing 11, is provided with a U-shaped groove 64 about the periphery thereof which receives the rear edge of the casing, the latter being embedded in suitable sealing material y65 to provide an air-tight joint.

At the top of the casing 11 the lfront end ring 62 is provided with a raised part 62a of inverted U-shape defining a lip which receives an undercut portion 45a provided at the extreme front edge of the trim strip, as best seen in FIGS.` 5 and 6. After the forward edge portion 45a of the trim strip is positioned at the under-side of the inver-ted U-shaped part 62a of the front end ring 62, the trim strip 45 can be moved downward toward the top of the casing 11 and fastened thereto by

screws

66 and 67, respectively. Ihe screw 66 passes through an opening in the lip 60 on the rear end portion 55 of the handle to secure it to the top of the casing. Further, the screw 66 also functions to press the handle part 58 against the region 47a of the trim strip to firmly anchor the handle to the -top of the casing, as best seen in FIG. 7.

The switch 22 is clamped tightly between the top of the casing 11 `and the runderside of the trim strip 45 by tightening the

screws

66 and 67. 'Ihe switch operating member 32 projects upward through -Jthe elongated slot 46 in the Itrim strip, the underside thereof at .the peripheral edge of the slot having an undercut portion 68 engaged by the top edges of the

walls

30 and 31 of the switch receptacle 28. This leaves a slight clearance for the lugs 34 in the notches 33 at the sides of the receptacle 23, so that the switch operating member 32 will move freely when it is moved to close and open the switch 22.

As best shown in FIG. l1, the screw 67 passes through apertured parts of the element 35 and the right-hand portion of the -switch part 25 which together provide the cavity 36 vfor the contact ngers (not shown). A part of the element 3S, Which is formed of suitable insulating material, projects beyond the end of the trim strip 45 While a particular embodiment of the invention has been shown and described, such variations and modifications fare contemplated as fall within the true spirit and scope ofthe invention, as pointed fou-t in the following claims. Y

I claim:

1. In a suction cleaner, a casing, the top wall of the casing having adjoining horizontal sections at different levels and an inclined sloping top wall section therebetween, a handle for the casing having one end terminating at a rst region which is at the higher level top wall section and at the immediate vicinity of the higher end of the inclined sloping wall section and the other end terminating at -a second region which is at the lower level top wall section `and removed from the lower end of the inclined sloping wall section, an elongated member fixed to the casing which is disposed over the top wall sections and the sloping wall section therebetween, the member being formed with 'a founsided opening having a portion of its periphery horizontally disposed and forming a U at one level at the higher level top wall section and fan-other portion of its periphery for-ming `a side at a lower level at the sloping top wall section, a side formed by the closed end of the U 'and the side at the lower level being transverse to the length of the member and opposite one another, the one end of the handle projecting through and lh'ng the opening and extending lengthwise of and beneath the member past the side of the opening formed by the closed end of the U, the side at the lower level providing ya support npon which the bottom of the one end of the handle rests, and means including the member yfor securing the one end of the handle to the top wall of the casing at the first region.

2. In a suction cleaner, a casing, the -tcp wall of the casing having radjoining horizontal sections at different levels and an inclined sloping top wall section therebetween, a handle for the casing having one end terminating at a first region which is at the higher level top wall section and at Ilthe immediate vicinity of the higher end of the inclined sloping wall section and the other end terminating at a second region which is at the lower level top wall section and removed from the lower end of the inclined sloping wall section, an elongated member fixed to the casing which `conforms to the shape of the top wall land is disposed over the top wall sections and the sloping wall section therebetween, the member being of inverted U-shape with its sides extending upward from the top wall of the casing and its closed end providing a horizontally disposed ridge, the ridge being formed with a four-sided opening having a portion of its periphery horizontally disposed :and forming a U at one level at the higher level top Wall section and another portion of its periphery forming ya side at a lower level at the sloping top wall section, a side formed by the closed end of the U and the side at the lower level being transverse to the length of the member and opposite one another, the Vone end of the handle projecting through and filling the opening and extending lengthwise of and beneath the member past the side of the opening formed by the closed end of 4the U, the side at :the lower level providing ya support upon which the bottom of the one end of the handle rests, and means including said member for securing lthe :one end of the handle between the underside of the member and the top wall of the casing. f

A3. A suction cleaner ,as set forth in claim 2 in which sides of the opening extend lengthwise of the member and connect the side formed by the `closed end of the U and the side rat the lower level, the last-mentioned connecting sides including that portion of the periphery of the opening which is horizontally disposed at the one level and formed by the spaced arms of the U and that portion of the periphery of the opening which is vertically disposed land extends upward from the ends of the side lat the lower level and merges Iwith the spaced arms of the U at the one level, the one end `of fthe handle projecting through the opening having shoulders -which engage the underside of the ridge at both the horizontally and vertically disposed portions of the periphery of the opening storming the connecting sides.

4. A suction cleaner as set forth in claim 2 in which sides of the opening extend lengthwise of the member 'and connect the side :formed lby the closed end of the U and the side at the lower level, the last-mentioned connecting sides including that portion of the periphery of the opening which is horizontally disposed -at the one level and formed by the spaced arms of the U and thiat portion of fthe periphery of the opening which is vertically disposed and extends upward from. the ends of the side at the lower level and merges lwith the spaced arms of the U at .the one level, the one end of the handle projecting through the opening being provided with opposing outwardly projecting -lu-gs which engage the underside of the ridge `at the vertically disposed portion of the periphery of the opening, the lugs being yieldingly movable toward one another when the one end -of the handle is withdrawn through the opening in 'a horizontal direction from the first region =at the higher level top wall section.

5. In a horizontal-type suction cleaner, a casing having an inlet 'and outlet for air Iat opposite ends thereof land electrically operable means for moving air therethrough, the top wall of the casing having ,adjoining sections at different levels which extend lfrom the opposite ends of the casing toward a region intermediate the ends thereof and an inclined sloping top wall section therebetween, a handle extending lengthwise of the casing between the opposing sides thereof, one end of the handle terminating at a first region which is at the higher level top wa'll section and at the immediate vicinity of the higher end of the inclined sloping wall section, the other end of the 7 handle terminating Yat ya second region which is at the lower level top, wall section and removed lengthwise of the casing from the lower end of the inclined sloping wall section, means includingya `switch having la manually movable control member for controlling the electrically operable means, the switch being disposed .in lan opentop receptacle'positioned at the top wall of the casing between the opposing sides thereof, lan ielongated member which conforms to the shape of the top wall and is disposed over both top wall sections iat the different levels and fthe inclined sloping wall section therebetween, the elongated member bein-g Iof inverted ,-U-shaipe with its sides extending npward .from the top wall of the casing and its closed end forming -a horizontally disposed ridge between the opposing sides of the casing, the ridge having openings iat the lirst and second regions of lthe top wall of the casing and at the switch receptacle, the ends of the handle projecting through two of the ridge openings yand having parts engaging lthe .underside of the ridge iat the peripheral edges of the openings, the topi edge of the Kopen-top switch receptacle engaging the underside 'of Y-the ridge at the peripheral edge of a third ridge opening, me'ans including the elongated member for fanchorn ing the ends of the Ihandle and the switch receptacle to the top wall of the casing, the movable control member projecting upward through the third ridge opening and being movable from -a region above the ridge, the elongated member being less resilient than the ends of the handle, said anchoring means .clamping the ends oft the handle and Jthe switch receptacle between the underside ofthe ridge and the .top wall of the casing, the control 'member having outwardly projecting parts at opposing sides thereof at the vicinity of its axis, yand the ridge at -the vicinity of the third opening having portions thereof overlying the outwardly projecting pants for retaining the control member in position at the third opening in the ridge. t

6.'A suction cleaner as set forth Vin claim 5 in which the outwardly projecting [parts `of the control member comprise ya pair of lugs, opposing walls of the open-top receptacle being notched lat the top edges to receive the lugs, portions of the ridge overlying the lugs to retain the movable control member in position.

7.' In la `horizontal-type suction cleaner, a casing, a handle extending lengthwise of the top of fthe casing between the opposing 'sides thereof; the ends of the handle termina/ting at spaced apart regions lat the top of the casing, an elongated member which is disposed lengthwise of the casing between the opposing sides thereof, the member being of inverted U-shape lwith its sides extending upward from the top Iwall of the casing yand lits closed end providing -a horizontally disposed ridge between the opposing sides lof the casing, the ridge having spaced `apart openings, -the ends of the' handle projectingV through theridge openings and lhaving parts engaging Vt-he underside of the ridge at Ythe peripheral edges of the openings, means including the elongated member for 'anchoring the ends of the handle tto fthe top| wall of thecasing -at the spaced iapart regions, the elongated member being less resilient than the ends of the bandle,'said anchoring means clamping the ends of the handle between the underside of the ridge/and the ytop wall of the casing, electrically operable means for moving air through the casing, means for controlling the [electrically operable means comprising a movable control member which is disposed -at the top of the casing between the opposing sides thereof and angularly movable about a horizontal taxis, the ridge having a third opening therein ,through which Ithe control member projects to be accessible froma region above the elongiatedmember, the control Vmember havin-gout- Wardly projecting parts at opposing sides thereof 'at the vicinity of its axis, and the ridgeat'fthe vicinitynf the third yopening having portions thereof overlying the outwardly projecting pants for retaining the control member in position within the elongated member Vwhen the ends of the handle are anchored at the top wall of the casing'.

Refe'rencesrCited in the le of this patent UNITED STATES PATENTS 1,691,988 Olson L- Nov. 2.0, 1928 2,008,067 Faber July 16, '1935 2,086,489' Bowersox July 6, 1937 2,122,632 Baxter July 5, 1938 2,142,953 Raymond Ian. 3, 1939 2,241,785 Loligren Q May 13, 1941 2,335,031 Stevens Nov. 23, 1943 2,464,401 Kelly Mar. 15, 1949 2,554,509' Y Sparklin May 29', 1951 2,591,305 Segesman Apr. 1, 1952 2,605,927 Segesmlan Ang. 5, 1952 2,616,114 Kroenlein Nov. 4,'1952 2,811,737 Hayba Nov. 5, 1957 2,814,358 Beede etrlal Nov. 26, 1957 2,975,391

Bead@ et e1 Maf. 14, `1961 A OTHER VREFERENCES Y Germany (printed appl), 1,024,870, Feb. 20, 1958.`

Claims

1. IN A SUCTION CLEANER, A CASING, THE TOP WALL OF THE CASING HAVING ADJOINING HORIZONTAL SECTIONS AT DIFFERENT LEVELS AND AN INCLINED SLOPING TOP WALL SECTION THEREBETWEEN, A HANDLE FOR THE CASING HAVING ONE END TERMINATING AT A FIRST REGION WHICH IS AT THE HIGHER LEVEL TOP WALL SECTION AND AT THE IMMEDIATE VICINITY OF THE HIGHER END OF THE INCLINED SLOPING WALL SECTION AND THE OTHER END TERMINATING AT A SECOND REGION WHICH IS AT THE LOWER LEVEL TOP WALL SECTION AND REMOVED FROM THE LOWER END OF THE INCLINED SLOPING WALL SECTION, AN ELONGATED MEMBER FIXED TO THE CASING WHICH IS DISPOSED OVER THE TOP WALL SECTIONS AND THE SLOPING WALL SECTION THEREBETWEEN, THE MEMBER BEING FORMED WITH A FOUR-SIDED OPENING HAVING A PORTION OF ITS PERIPHERY HORIZONTALLY DISPOSED AND FORMING A U AT ONE LEVEL AT THE HIGHER LEVEL TOP WALL SECTION AND ANOTHER PORTION OF ITS PERIPHERY FORMING A SIDE AT A LOWER LEVEL AT THE SLOPING TOP WALL SECTION, A SIDE FORMED BY THE CLOSED END OF THE U AND THE SIDE AT THE LOWER LEVEL BEING TRANSVERSE TO THE LENGTH OF THE MEMBER AND OPPOSITE ONE ANOTHER, THE ONE END OF THE HANDLE PROJECTING THROUGH AND FILLING THE OPENING AND EXTENDING LENGTHWISE OF AND BENEATH THE MEMBER PAST THE SIDE OF THE OPENING FORMED BY THE CLOSED END OF THE U THE SIDE AT THE LOWER LEVEL PROVIDING A SUPPORT UPON WHICH THE BOTTOM OF THE ONE END OF THE HANDLE RESTS, AND MEANS INCLUDING THE MEMBER FOR SECURING THE ONE END OF THE HANDLE TO THE TOP WALL OF THE CASING AT THE FIRST REGION.