US3342537A

US3342537A - Liquid dispensing apparatus

Info

Publication number: US3342537A
Application number: US446169A
Authority: US
Inventors: Lowell F Nelson; Hanson Louis
Original assignee: John Wood Co
Current assignee: John Wood Co
Priority date: 1965-04-07
Filing date: 1965-04-07
Publication date: 1967-09-19
Anticipated expiration: 1984-09-19

Description

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LIQUID DISPENSING APPARATUS Sheeia-Sheex 1 Filed April '7, 1965 W Go UWH MHIHHI ll mmmm-mwmmmwunmal Inn IIIIIHHHI LOWELL F. NELSON LOUiES HANSON M T'GRNE'Y 19, 1967 F. NELSON ETAL 3,342 337 LIQUID DI SPENS ING APPARATUS Filed April 7, 1965 3 Sheets-Sheet 2 ,INVENTORS LOWELL F. NELSON LOUIS HANSON v ATTORNEY SQWL 19, 1967 L. F. NELSON E L LIQUID DISPENSING APPARATUS 3 Sheets-Sheet 3 Filed April 7, 1965 INVENTORS LOWELL F NELSON UIS HANSON D ATTORNEY United States Patent ()filice 3,342,537 Patented Sept. 19, 1967 3,342,537 LIQUID DISPENSING APPARATUS Lowell F. Nelson and Louis Hanson, Muskegon, Mich, assignors to John Wood Company, East Orange, N.J., a corporation of Delaware Filed Apr. 7, 1965, Ser. No. 446,169 5 Claims. (Cl. 312100) ABSTRACT OF THE DISQLOSURE A housing for gasoline dispensing apparatus having an upper and a lower closure member on both the front and rear side. The upper closure members contain a glass panel and a dial face secured in position by a multiplicity of spring clips. Positioning pins are mounted on a support frame in a manner whereby an upper and a lower closure member are aligned with and commonly secured to a pair of positioning pins.

Our invention relates to liquid dispensing apparatus, such as gasoline dispensing apparatus, and more particularly to what is commonly known as the housing of such apparatus.

Heretofore, housing for such liquid dispensing apparatus ordinarily included panels or doors at the front and back of the apparatus, or only at the front of the apparatus, which are hingedly connected, so that such hinged panels or doors, may be opened, or removed, to permit access to the components of the apparatus within the housing. Such hinged panels or doors have been uniformly used for a long number of years, and all manufacturers of gasoline dispensing apparatus have had problems in assuring that the doors are properly aligned and positioned so that they will open, or be removed, readily and can be maintained closed in weathertight condition.

All of such gasoline dispensing apparatus which are in common use in service stations include an upper portion provided with a glass portion through which a dial face may be observed by the customer, the dial face including a multiplicity of openings through which the computer numbered indicating dial wheels for the volume, total sales value, and price per gallon may be observed. Such glass enclosed portion may be formed as the upper part of the panel or door, or may be comprised of a separate panel or door element. Such glass portion, or door, including the glass, is formed as a sub-assembly, with retainin-g means around the peripheral edge of the glass, which retaining means is secured by a multiplicity of screws which require a relatively considerable amount of time to assemble, and also to disassemble in the event the glass becomes broken and has to be removed, and a new glass installed, and then reassembled.

Summary of the invention Our invention is to provide a housing construction in which a bottom flange formed in the lower door closure may be readily positioned on pin positioning means which are adapted to extend through coinciding openings formed in said flange of the lower door closure. The upper portion of the lower door closure also is provided with a horizontal flange having similar openings therethrough which are adapted to be positioned over spaced apart positioning pins rigidly connected to a cross member of the frame of the unit. The upper door closure includes an outer frame and the glass member through which the dial may be observed. Said upper door closure includes spaced apart openings through a bottom flange of said door, which openings coincide with the spaced apart upper pin members which extend through the upper flange of the lower door member. The uppermost portion of the upper door is adapted to engage a trough-like cross member rigidly connected to the fixed portion of the top of the housing.

An object of our invention is to provide means by which said upper and lower doors or panelsmay be facilely locked together by a single locking member to prevent any unauthorized access to the interior of the housing.

Another object of our invention is: to provide means by which the glass portion of the upper panel or door may be readily secured to the door frame by means of quick acting spring clips which are readily snapped into locked position, and, accordingly, which may be readily and quickly removed to permit the removal of the glass.

Our invention may be more fully understood and further objects and advantages may become apparent when reference is made to the more detailed description of the invention with respect to the accompanying drawings.

Referring to said drawings,

FIG. 1 is a front elevation of a liquid dispensing apparatus embodying our invention.

FIG. 2 is a righthand side elevation, showing the means to which the commonly used dispensing hose is connected; the nozzle boot in which the nozzle at the distal end of the dispensing hose is positioned when the apparatus is not in use; and the handle of a switch means which is adapted to cover the nozzle boot opening when the nozzle has been removed and the handle of the switch means turned to ON position. Such switch operating means is disclosed and claimed in Lowell F. Nelson application, Ser. No. 350,982.

FIG. 3 is an enlarged fragmentary vertical sectional view, taken on the line 33 in FIG. 1.

FIG. 4 is an enlarged fragmentary rear elevation view of the inside of the upper member shown in FIG. 3.

FIG. 5 is an enlarged fragmentary plan sectional view of the lower front panel member shown in FIGS. 1 and 2, taken on the line 5-5 in FIG. 3.

FIG. 6 is an enlarged elevation of the lock member indicated in FIG. 1, with said lock member when turned to unlocked position shown in dash and dot lines.

FIG. 7 is an exploded perspective view of the liquid dispensing apparatus shown in FIG. 1, with the upper and lower door closures, and elements of the lock member, shown separated from the apparatus.

FIG. 8 is an enlarged fragmentary sectional view of the lock member in locked position, so that the lower and upper doors may not be raised off the positioning pins, and showing the manner in which the lower and upper doors are locked in position on the positioning pins.

Referring more particularly to FIGS. 1, 2, and 3; the outer housing indicated generally at 1 includes a lower front door closure 2 and an upper door closure 3. The rear of the pump is provided with corresponding upper and lower door closures. The housing includes a righthand side panel member 4 which is provided at its upper portion with an outlet connection 5 to which a commonly used dispensing hose (not shown) is connected in fluid tight relationship. The hose is provided at its distal end with a valve controlled dispensing nozzle (not shown) of the ordinarily well-known construction.

The side panel 4 is provided with a nozzle boot 6 into which said nozzle may be positioned with the lower end of the nozzle handle positioned on the nozzle support 7. The handle of the switch operating means for the usual electric motor is indicated at 8. The opposite side panel on the left-hand side of the pum as in FIG. 1, is similar to the panel 4, except that it does not include a nozzle support, nozzle boot, switch operating handle, etc. The top of the housing is provided with a top closure portion 9.

The liquid dispensing apparatus includes support frame members within the housing, said support frame including vertical members 10, 11, etc. and horizontal bracing members such as indicated at 12, 13, etc. The support frame is rigidly mounted on a base support member 15.

The base member has an inwardly turned horizontal flange portion 16 which is provided with a multiplicity of positioning pin members 18 which extend through openings formed in the flange 16 of the base member 15 and are rigidly connected to said flange 16. The rear side of the base member 15 has a corresponding flange 16, pins 18, etc.

The bottom of the lower door 2 is provided with an inwardly turned flange portion 20 provided with spaced apart openings 21 coinciding with the spaced apart positioning pin members 18. Each of the openings 21 is provided with a grommet 22 formed of resilient material and provided with a peripheral slot portion through which the metal of the bottom flange surrounding the opening 21 is engaged to retain the grommet in position. The grommet, of course, is provided with a central opening therethrough of a diameter which will fit snugly around its pin 18.

The supporting frame includes a horizontal rigidly fixed frame member 25 which has rigidly connected thereto spaced apart positioning pins 26.

The top of the lower door closure 2 is provided with an inwardly turned flange which is provided with openings 31 therethrough which are in spaced apart matching relationship with the spaced apart positioning pins 26.

The lower edge of the upper door closure 3 has an inwardly turned horizontal flange portion 32 which is provided with openings 34 therethrough in matching spaced apart relationship with the spaced apart pins 26 rigidly positioned in the horizontal frame member 25. As best shown in FIG. 3, the top portion 9 of the housing includes a formed U-shaped channel member 36 which is adapted to receive the downwardly and inwardly turned upper edge 37 of the upper door member 3.

It is to be particularly noted that the positioning pin members 18 rigidly connected to the flange 16 of the base member 15, are of greater length than the positioning pins 26 rigidly connected to the frame member 25, so that the lower door closure 2 may be first positioned on the longer pins 18 and then the door raised so that the pins 26 may be positioned through the openings 31 in the inwardly turned flange 30 at the top of the door member 2.

Referring more particularly to FIGS. 7 and 8; the upper portion of the lower door 2 is provided with an opening 40, with flattened sides 41, through which the barrel 42 of the lock member indicated generally at 43 is inserted. The barrel portion 42 of the lock member 43 is provided with flattened sides of a congruent configuration similar to that of the opening 40, so as to prevent turning movement of the lock barrel 42 in the opening 40. After the barrel 42 of the lock member 43 is inserted through the opening 40, the latch member 45 provided with opening of a con-figuration congruent to the inner end of the barrel 42 is positioned on the inner end 46 of the barrel 42, and conveniently rigidly aflixed thereto by means of the nut 47. The latch member 45 is provided with a cam-like surface 50, as best shown in FIG. 8.

The inwardly turned flange portions '30 and 32 of the lower door member 2 and the upper door member 3 are provided, respectively, with matching

openings

51 and 52, and the horizontal frame member 25 is provided with a notched out portion 53, so that when the lock 43 and its rigidly aflixed locking member 45 are turned counterclockwise from the position shown in dash and dotted lines in FIG. 8 to the position shown in full lines in FIG. 8, the cam surface 50 of the locking member 45 causes the cam 50 to wedge against the frame cross member 25, thereby forcing the lower door 2 downwardly. The lock member 45 also hooks over the opening 52 of the flange portion 32 of the upper door 3, thereby preventing the upper door 3 from being raised off its positioning pins 26, to thereby lock both the lower and upper doors in position on the

pin members

18 and 26.

Referring more particularly to FIGS. 3 and 4; the upper door member 3 includes an outer frame portion provided with a rectangular peripheral flange 56 forming an enlarged opening 57 in the upper door member 3. A rectangular glass 58 is provided with protective resilient means 60 around its periphery, the resilient means 60 resting tightly against the flange portion 56 of the upper door 3, as best shown in FIG. 3. A dial member 62 of a configuration substantially congruent with that of the resilient protective means 60, is positioned against the inner side of the resilient protective means 60. The dial member 62 is provided with a series of openings 65 through which the figures on the dial wheels 66 of the computer 67 will appear. The computer 67 is operatively connected to the output drive shaft of the meter 68 in the well-known manner.

The glass 58, with its peripheral resilient protective means 60, and the dial member 62 are secured in tight engaging contact with the flange 56 of the upper door member 3 by means of a multiplicity of spring clips 70, one end of each of said clips 70 bears against the perimeter of the dial 62, and the inner end of each clip being outwardly turned to bear against the inwardly turned portion 37 of the upper door member 3.

Assembly and disassembly of the lower door closure 2 and the upper door closure 3 The lower front (or rear) door closure 2 is fitted over the positioning pins 18. The pins 18 being of greater length than the pins 26, the pins 18 act as a pilot for the lower flange 20 of the lower door 2, while the upper flange 31) of the lower door 2 is being positioned over the pins 26. The openings 34 in the lower flange 32 of the upper door 3 are positioned over the pins 26 and the upper inwardly turned flange portion 37 of the door 3 is hooked into the U-channel member 36 of the top portion of the housing.

With the lower door 2 and upper door 3 positioned in place on the positioning pins 18 and 26, a key (not shown) is inserted in the lock 43 and the key, barrel 42, and latch member 45 are turned counterclockwise approximately Such 90 counterclockwise movement of the latch member 45 causes the cam surface 50 of the lock member 45 to wedge against the frame rail 25, forcing the lower door 2 downwardly. The latch member 45 also hooks over the lower flange 32 of the upper door 3, as best shown in FIG. 8, so that the upper door 3 is prevented from being raised off the positioning pins 26, thereby locking both the lower door 2 and the upper door 3 in position on the

pins

18 and 26.

When it is desired to have access to the mechanism within the interior of the housing, the lock 43 is turned 90 clockwise to the position shown in dotted lines in FIG. 8, to thereby permit the upper door 3 to be lifted out of the U-channel member 36 and otf the positioning pins 26. With the upper door removed from the positioning pins 26, the lower door 2 may be moved upwardly from engaging contact with the positioning pins 26 and then tilted slightly forwardly to permit removal of the lower door 2 from the positioning pins 18 rigidly secured in the flange 16 of the base member 15.

If the glass 58 of the upper door needs to be replaced for any reason, the upper door 3 is removed as heretofore described and the spring clips 70 may be quickly removed thereby permitting removal of the dial 62 and the glass 58. A new glass replacement is then inserted, the dial again placed in contact as heretofore described, and the multiplicity of spring clips 70 quickly snapped into tight holding position.

We do not desire to limit ourselves to the precise details of construction and arrangement heretofore described, as it is obvious that various modifications in our invention may be made without departing from the essential features thereof as defined in the appended claims.

We claim:

1. In liquid dispensing apparatus which includes abase member, a support frame comprised of spaced apart vertical members rigidly connected at their bottom ends to said base member and spaced apart horizontal members rigidly connected to said vertical members, and at least one meter adapted to be connected at its inlet by suitable conduit means to a source of liquid supply, said meter having an outlet connected to an outlet conduit adapted to be connected to dispensing means, and said meter having an output drive shaft operatively connected to a number wheel counter mechanism, all of the aforesaid meter, conduit means, counter mechanism elements being well-known and rigidly mounted within said support frame in a manner old and well-known in the art; a housing surrounding said support frame, said housing comprising:

(a) side and top members rigidly connected to said support frame;

(b) a removable lower front door closure having a bottom inwardly turned flange portion and a top inwardly turned flange portion;

(c) vertically upwardly extending spaced apart positioning pin members rigidly mounted in said base member;

(d) spaced apart openings through said bottom inwardly turned flange portion of said lower front door closure, said openings being adapted to receive therethrough said vertical spaced apart positioning pin members in said base member;

(e) spaced apart openings through said top inwardly turned flange portion of said lower front door closure;

(f) a rigidly fixed horizontal frame member having spaced apart vertical positioning pin members adapted to extend through said spaced apart openings in said top inwardly turned flange portion of said lower front door closure;

(g) a removable upper front door closure having a bottom inwardly turned flange portion;

(h) spaced apart openings through said bottom inwardly turned flange portion of said upper door closure, said last named spaced apart openings being adapted to receive therethrough said spaced apart vertical positioning pin members extending through said openings in said top inwardly turned flange portion of said lower front door closure, wherein said upperfront door closure and said lower front door closure are commonly secured to said horizontal frame member; and

(i) means at top portion of said upper door closure for removably maintaining said upper door closure in closed position.

2. In liquid dispensing apparatus which includes a base member, a support frame comprised of spaced apart vertical members rigidly connected at their bottom ends to said base member and spaced apart horizontal members rigidly connected to said vertical members, and at least one meter adapted to be connected at its inlet by suitable conduit means to a source of liquid supply, said meter having an outlet connected to an outlet conduit adapted to be connected to dispensing means, and said meter having an output drive shaft operatively connected to -a number wheel counter mechanism, all of the aforesaid meter, conduit means, counter mechanism elements being well-known and rigidly mounted within said support frame in 'a manner old and well-known in the art; a housing surrounding said support frame, said housing comprising:

(a) side and top members rigidly connected to said support frame;

(d) spaced apart openings through said bottom inwardly turned flange portion of said lower front door closure, said openings being adapted to receive therethrough said vertical spaced. apart positioning pin members in said base member;

(f) a rigidly fixed horizontal frame member having spaced apart vertical positioning pin members, of shorter height than said first-mentioned pin members, adapted to extend through said spaced apart openings in said top inwardly turned flange portion of said lower front door closure;

(h) spaced apart openings through said bottom inwardly turned flange portion of said upper door closure, said last named spacedapart openings being adapted to receive therethrough said spaced apart vertical positioning pin members extending through said openings in said top inwardly turned flange portion of said lower front door closure; and

(i) means at the top portion of said upper door closure for removably maintaining said upper door closure in closed position.

3. In liquid dispensing apparatus which includes a base member, a support frame comprised of spaced apart vertical members rigidly connected at their bottom ends to said base member and spaced apart horizontal members rigidly connected to said vertical members, and at least one meter adapted to be connected at its inlet by suit-able conduit means to a source of liquid supply, said meter having an outlet connected to an outlet conduit adapted to be connected to dispensing means, and said meter having an output drive shaft operatively connected to a number wheel counter mechanism, all of the aforesaid meter, conduit means, counter mechanism elements being well-known and rigidly mounted within said support frame in a manner old and well-known in the art; a housing surrounding said support frame, said housing comprising:

(a) side and top members rigidly connected to said support frame;

(f) a rigidly fixed horizontal frame member having vertical spaced apart positioning pin members, of shorter length than said first mentioned pin members adapted to extend through said spaced apart openings in said top inwardly turned flange portion of said lower front door closure;

(h) spaced apart openings through said bottom inwardly turned flange portion of said upper door closure, said last named spaced apart openings being adapted to receive therethrough said vertical spaced apart positioning pin members extending through said openings in said top inwardly turned flange portion of said lower front door closure, wherein said upper front door closure and said lower front door closure are commonly secured to said horizontal frame member;

(i) means at the top portion of said upper door closure for removably maintaining said upper door closure in closed position; and

(j) lock means at the upper part of said lower door closure, said lock means including a locking member adapted to lock together said upper inwardly turned flange portion of said lower door closure and said lower inwardly turned flange portion of said upper door closure with said horizontal frame member, to thereby prevent removal of said lower and upper door closures when said locking member is turned to locked position.

4. A structure as in claim 3; wherein the top portion of said upper door closure includes an inwardly and downwardly turned flange portion adapted to be fitted into a U-shaped channel at the front portion of said top member.

5. In liquid dispensing apparatus which includes a base.

member, a support frame comprised of spaced apart vertical members rigidly connected at their bottom ends to said base member and spaced apart horizontal members rigidly connected to said vertical members, and at least one meter adapted to be connected at its inlet by suitable conduit means to a source of liquid supply, said meter including an outlet connected to an outlet conduit adapted to be connected to dispensing means, and said meter having an output drive shaft operatively connected to a number wheel counter mechanism, all of the aforesaid meter, conduit means, counter mechanism elements being well-known and rigidly mounted within said support frame in a manner old and well-known in the art; a housing surrounding said support frame, wherein said housing comprising:

(a) side and top members rigidly connected to said support frame;

(f) a rigidly fixed horizontal frame member having 8 vertical adapted to extend through said spaced apart openings in said top inwardly turned flange portion of said lower front door closure;

(g) a removable upper front door closure comprising a rectangular frame having top, side, and bottom inwardly and front and rear turned flange portions forming a generally rectangular opening;

(h) spaced apart openings through said bottom inwardly turned flange portion of said upper door closure; said last named spaced apart openings being adapted to receive therethrough said vertical spaced apart positioning pin members extending through said openings in said top inwardly turned flange portion of said lower front door closure, wherein said upper front door closure and said lower front door closure are commonly secured to said horizontal frame member;

(i) means at the top portion of said upper door closure for removably maintaining said upper door closure in closed postion;

(j) a transparent member of greater width and length dimensions than said opening in said upper door frame, the perimeter of said transparent member being adapted to be sealingly engaged with the rearward side of said front flange portion of said upper door frame;

(k) a dial member, having openings therein through which said number wheels of said counter mechanism may be observed, adapted to be sealingly engaged at its perimeter with the perimeter of the rearward side of said transparent member; and

(l) a multiplicity of spaced apart spring clips, one end of each of which is engaged with the rearward perimeter of said dial member and the opposite end of each of said spring clips engaging the said inwardly turned flange portion of said frame of said upper! door closure; said spring clips being of the type which may be facilely and quickly snapped into holding position to maintain said dial and transparent member firmly against said upper door closure frame and which may be quickly removed to permit removal of said dial and transparent member from said frame.

References Cited UNITED STATES PATENTS 2,528,691 11/1950 Grimmelsen 312--287 XR 2,692,810 10/1954 Winger 312-277 X 2,738,211 3/ 1956 Schlueter 292--365 3,027,211 3/1962 Wright 312- 3,028,206 4/1962 Smith 312-229 X 3,139,215 6/1964 Sasnett 222182 X DAVID J. WILLIAMOWSKY, Primary Examiner.

JAMES L. KOHNEN, Assistant Examiner.

spaced apart positioning pin members

Claims

5. IN LIQUID DISPENSING APPARATUS WHICH INCLUDES A BASE MEMBER, A SUPPORT FRAME COMPRISED OF SPACED APART VERTICAL MEMBERS RIGIDLY CONNECTED AT THEIR BOTTOM ENDS TO SAID BASE MEMBER AND SPACED APART HORIZONTAL MEMBERS RIGIDLY CONNECTED TO SAID VERTICAL MEMBERS, AND AT LEAST ONE METER ADAPTED TO BE CONNECTED AT ITS INLET BY SUITABLE CONDUIT MEANS TO A SOURCE OF LIQUID SUPPLY, SAID METER INCLUDING AN OUTLET CONNECTED TO AN OUTLET CONDUIT ADAPTED TO BE CONNECTED TO DISPENSING MEANS, AND SAID METER HAVING AN OUTPUT DRIVE SHAFT OPERATIVELY CONNECTED TO A NUMBER WHEEL COUNTER MECHANISM, ALL OF THE AFORESAID METER, CONDUIT MEANS, COUNTER MECHANISM ELEMENTS BEING WELL-KNOWN AND RIGIDLY MOUNTED WITHIN SAID SUPPORT FRAME IN A MANNER OLD AND WELL-KNOWN IN THE ART; A HOUSING SURROUNDING SAID SUPPORT FRAME, WHEREIN SAID HOUSING COMPRISING: (A) SIDE AND TOP MEMBERS RIGIDLY CONNECTED TO SAID SUPPORT FRAME; (B) A REMOVABLE LOWER FRONT DOOR CLOSURE HAVING A BOTTOM INWARDLY TURNED FLANGE PORTION AND A TOP INWARDLY TURNED FLANGE PORTION; (C) VERTICALLY UPWARDLY EXTENDING SPACED APART POSITIONING PIN MEMBERS RIGIDLY MOUNTED IN SAID BASE MEMBER; (D) SPACED APART OPENINGS THROUGH SAID BOTTOM INWARDLY TURNED FLANGE PORTION OF SAID LOWER FRONT DOOR CLOSURE, SAID OPENINGS BEING ADAPTED TO RECEIVE THERETHROUGH SAID VERTICAL SPACED APART POSITIONING PIN MEMBERS IN SAID BASE MEMBER; (E) SPACED APART OPENINGS THROUGH SAID TOP INWARDLY TURNED FLANGE PORTION OF SAID LOWER FRONT DOOR CLOSURE; (F) A RIGIDLY FIXED HORIZONTAL FRAME MEMBER HAVING VERTICAL SPACED APART POSITIONING PIN MEMBERS ADAPTED TO EXTEND THROUGH SAID SPACED APART OPENINGS IN SAID TOP INWARDLY TURNED FLANGE PORTION OF SAID LOWER FRONT DOOR CLOSURE; (G) A REMOVABLE UPPER FRONT DOOR CLOSURE COMPRISING A RECTANGULAR FRAME HAVING TOP, SIDE, AND BOTTOM INWARDLY AND FRONT AND REAR TURNED FLANGE PORTIONS FORMING A GENERALLY RECTANGULAR OPENING; (H) SPACED APART OPENINGS THROUGH SAID BOTTOM INWARDLY TURNED FLANGE PORTION OF SAID UPPER DOOR CLOSURE; SAID LAST NAMED SPACED APART OPENINGS BEING ADAPTED TO RECEIVE THERETHROUGH SAID VERTICAL SPACED APART POSITIONING PIN MEMBERS EXTENDING THROUGH SAID OPENINGS IN SAID TOP INWARDLY TURNED FLANGE PORTION OF SAID LOWER FRONT DOOR CLOSURE, WHEREIN SAID UPPER FRONT DOOR CLOSURE AND SAID LOWER FRONT DOOR CLOSURE ARE COMMONLY SECURED TO SAID HORIZONTAL FRAME MEMBER; (I) MEANS AT THE TOP PORTION OF SAID UPPER DOOR CLOSURE FOR REMOVABLY MAINTAINING SAID UPPER DOOR CLOSURE IN CLOSED POSITION; (J) A TRANSPARENT MEMBER OF GREATER WIDTH AND LENGTH DIMENSIONS THAN SAID OPENING IN SAID UPPER DOOR FRAME, THE PERIMETER OF SAID TRANSPARENT MEMBER BEING ADAPTED TO BE SEALINGLY ENGAGED WITH THE REARWARD SIDE OF SAID FRONT FLANGE PORTION OF SAID UPPER DOOR FRAME; (K) A DIAL MEMBER, HAVING OPENINGS THEREIN THROUGH WHICH SAID NUMBER WHEELS OF SAID COUNTER MECHANISM MAY BE OBSERVED, ADAPTED TO BE SEALINGLY ENGAGED AT ITS PERIMETER WITH THE PERIMETER OF THE REARWARD SIDE OF SAID TRANSPARENT MEMBER; AND (L) A MULTIPLICITY OF SPACED APART SPRING CLIPS, ONE END OF EACH OF WHICH IS ENGAGED WITH THE REARWARD PERIMETER OF SAID DIAL MEMBER AND THE OPPOSITE END OF EACH OF SAID SPRING CLIPS ENGAGING THE SAID INWARDLY TURNED FLANGE PORTION OF SAID FRAME OF SAID UPPER DOOR CLOSURE; SAID SPRING CLIPS BEING OF THE TYPE WHICH MAY BE FACILELY AND QUICKLY SNAPPED INTO HOLDING POSITION TO MAINTAIN SAID DIAL AND TRANSPARENT MEMBER FIRMLY AGAINST SAID UPPER DOOR CLOSURE FRAME AND WHICH MAY BE QUICKLY REMOVED TO PERMIT REMOVAL OF SAID DIAL AND TRANSPARENT MEMBER FROM SAID FRAME.