USRE24312E - Li ppm an - Google Patents

Description

May 7, 195 7 J. LIPPMAN ErAL SOAP DISPENSER ori inal Filed March 4. 1952 4 Sheets-Sheet 1 a E mm TME NPW mm L 5 w. w E 6 W m Y F X R. n Y 4 4 B 8 4 )6 mum, 4 I 7 4 2 3 3 /3 Y 9 4 w I .0 8 3 W. 2 I 5 5 r 5 6 5 I 3 5 4 5 2 5 5 o 3 a y B ATTORNEY May 7, 1957 J. LIPPMAN EI'AL SOAP DISPENSER Original Filed March 4. 1952 4 Sheets-Sheet 2 Q 69 /'!I I3 ea FIG. 2

INVENTORS JEROME LIPPMAN a BY RAYMOND w. LORENGE ATTORNEY y 1957 J. LIPPMAN EI'AL Re. 24,312

SOAP DISPENSER Original Filed March 4, 1952 4 Shee'ts-Sheet 3 33 IN VEN TORS -JEROME LIPPMAN 5 By RAYMOND W. LORENGE ATTORNEY May 7, 1957 J. LIPPMAN EIAL SOAP DISPENSER 4 Sheets-Sheet 4 Original Filed March 4, 1952 FIG. 4

INVENTOR$ JEROME LIPPMAN 8 y RAYMOND W- LORENOE ATTORNEY made United States Patent Cfiice SOAP DISPENSER Jerome Lippman and Raymond WiLorence, Akron, Ohio,

assig'nors of one-hal'f'to Jerome Lippman-and one-half to Aaron HeLippman 'orliinal No. 2,700,490, dated January 25, 1955, Serial g I 274,713, March 4, 1952. Application for reissue Dctoberl, 1956, Serial N0.613,358

typo soap.

One-object of the present invention is to provide -a nriachinefordispensing paste-type material, such as hand soap, including simple,;eiiicient means for quickly replaceablymounting containers of the material in the machine as a part thereof.

Another object of theinvention is to provide a leakproof paste-type dispenserof the character described which is substantially fool-proof to dispense accurately predeterminedamounts of the material.

.Another object of the invention is to provide a dis- .penser of the character described, including simple, effective means for varying the predetermined amounts of the dispensed material.

Still another object is'to provide an improved dispenser including a screw-pressure operated piston having means self-operating as pressure is applied to paste in the dispenser to prevent rotation of the piston.

Other objects of the invention willbe manifest from the following brief description and the I accompanying drawings.

Of the accompanying drawings:

Figure lis a top plan view of a soap dispenser embodying the features of the invention, attached to a wall.

Figure 2 is aside elevation thereof .ias viewed from the front of Figure 1.

Figure 3 is an enlarged vertical cross-section, partly broken away, taken substantially on the line 3-:3'0f Figure 1, and showing the dispenser filled and readyfor operation.

Figure -4 is a horizontal cross-section taken substantially on the line 44 of Figure 3, on thesame scale, but

with the portions including the soap container removed and-with the'soap removed from the base.

Figure 5 is a vertical cross-section,;partly broken away, and on the same scale, taken substantially on the line .5-5 of Figure 4.

Figure 6 is a fragmentary cross-section taken substantially on the line 6--6 of Figure 4, and illustrating ratchet means for preventing rotationof aportion of the mechanism in one direction.

.base 13, a rigid shaft 15 is threaded at i-t-s lowerwend i Reissued May 7, 1957 into a boss 16 in the bottom of the base to extend vertically upward, and ,a neck portion .17 of a turningmember 18 is threaded onto the upper end of shaft 1'5, said neck portion being rota-tably retained through a central aperture 19 in a'cl'osure cap 2!] having a recessed "annular seat 21 in which the open upper end of container 10 is received. Clamping pressure is applied by manually turning a nut 22, on *a threaded portion 23 of member 18, against the outer side-of the cap. Member 18: is retained on the cap by a spring collar 24 enibacing'a grooved portion 25 of neck l7 inwardly of the cap. A

rod 26 slidably received through a corner portion of nut 22 facilitates application of requisite clamping pressure as described.

Valve means'ZS is provided for extruding predetermined amounts ofsoap 8 (Figure 3) throughan extrusion'orifice 29 onto the hand of a user of the machine, in synchronism with mlanualoperation of a control-mechanism 30' applying pressure to a'pist on 3'1 slidably received in't'he-con tainer .10.

As best shown in Figures 3, 4 and 5, the valve means .may comprise a ring 32 notatably retained in an annular bore. The ring is rotatable a small fraction of a revolution tomove the valve plate'35 out of yielding seating relation with tubes37, from the full line position shown in Figure 3 and 4 to the chain-dotted line position of Figure 4, a limited by engagement of the leading edge of the plate with a stop clip '41 circumferentially adjust ably secured to the base. The trailing edge of the plate 35 is chamfered as indicated at 42 in Figure 4, to facilitate smooth return thereof to said seating engagement with the inner rim or seat 37a.of tube 37.

The ring 32 may be yieldingly turned said-partial revolution as by turning a handle 43 fixed on an outward extension 44 of a stem 45 journalled through the base'l3, such turning :action being against the yielding resistance of a coilsspr'ing 46 within abore 47 surrounding the stem and shaving opposite ends suitably anchored in-the hub 480i thehandleand'the base 13 at the inner end of the bore-respectively- (see Figures 4 and 5). A clutch part 49 of aclutch 50 is keyed on the stem 45 and serves assa collar retaining'the stem against axial movement with respect to the base, and this clutchpart hasa protuberancetoripin 51 extending upwardly therefrom'at an angle to'theaxis of the stem to position between circumferentially spaced'shoulder portions or lugs 52, "'52 extcnding inwardly from the ring in the plane'thereof. The arrangement is such that by swinging the handle forwardly approximately ninety degrees to the left as viewed in Figure 2, and as indicated in full and chaindotted lines inFigure 4, the ring 32 is turned in clockwise direction to said stopposition in which the valve is fully open, whereby pressure applied to the paste S'in the container'forces a predetermined amount of paste outwardly through the tube 37 and extrusion orifice 29 into the hand of'the'user oroperator of the machine. Release of the :haridleat the stop or valve opened position permits the handle spring .46' to'swing pin 51 back to starting position and thereby return the ring 32- back to the normal :full-line, valve-c1osed position shown in Figure :4, in which:pin' 51 prevents tur'ther spring-wound rotation: of :stem 45 :by the pin engaging downwardly 'against' the inner edge of the ring. Thus, the pin 51 acts as a positive stop for the normal position of the valve ring and associated movable parts.

For applying predetermined pressure to the paste S simultaneously with opening of the valve 28, the piston 31 is threaded on a sleeve 53 rotatably received on the fixed shaft 15, and retained against axial movement by the upper end of the sleeve engaging the inner end of neck portion 17 of turning member 18 (see Figure 3) and the opposite end of a bevel gear 54, secured to corresponding end of the sleeve, engaging the inner end of boss 16. Thus, the turning member 18 serves a double purpose, namely for retaining the sleeve against axial movement on the shaft, and for applying clamping pressure to the container through cap 20. It is inherent within the structure of the dispenser, however, that even if cap 20 is omitted the pressure forces set up in the paste body S alone are sufiicient to hold the container firmly against the seat portion 12. Said rotation of sleeve 53 is accomplished by rotation of stem [49] 45, through oneway clutch 50, a clutch part 55 of which is rotatably mounted on said stem and includes as an integral part thereof a bevel gear 56 in constant mesh with gear 54. Clutch part 49 (fixed on the stem) has a spring-pressed detent 57 extended in the path of a series of peripherally spaced, V-shaped teeth 58 on the outer end of clutch part 55, the teeth having straight faces 59 engageable by the detent in one direction of rotation of member 49, and inclined faces 60 for yieldingly depressing the detent in the opposite direction of rotation of member 49. Thus, upon turning handle 43, yieldingly to rotate stem 45 a fraction of a revolution to open the valve 28, as described above, the clutch 59 is engaged to rotate gear 54 and sleeve 53 approximately one-seventh of a revolution, and because the piston 31 is held against rotation by engagement of the same with the top of the paste S, the piston is by screw action between the same and the sleeve moved downwardly a distance sufiicient to force a predetermined quantity of paste through the extrusion orifice 29.

A portion 53a of the sleeve 53 at the lower end thereof is relieved or unthreaded to receive the piston 31 freely at the end of its stroke, to avoid continued screw pressure which would damage the dispenser.

To assure that downward pressure on the paste S will prevent rotation of the piston 31 on the threaded portion of sleeve 53, the piston is made cup-shaped, and has circumferentially spaced radial ribs 62 on the underside adapted to embed in the paste, as shown in Figure 3.

Release of handle 43 allowing spring 46 to return the movable parts of valve means 28 and of clutch 50 to normal positions thereof may, by frictional resistance in .the clutch, tend to reverse the rotation of gear 54 and thereby tend to move the piston 31 up to a certain extent, which would aflEect the accuracy of the pressure applying means. To obviate this difficulty Figures 4 and 6 show a leaf spring 63 extending upright from the bottom of base 13 and having an inturned lip 64 engaging between two adjacent teeth of bevel gear 56. The spring 63 serves as a ratchet which passes over the teeth of gear 56 upon forward motion thereof, but engages between two adjacent teeth to prevent reverse rotation of the gear.

As shown in Figures 1, 2, 3 and 4 the dispenser attaching means 14 may include a rearward projection 65 of base 13 providing a fiat face 66 against which a wall 67 of a channel-shaped bracket 68 fits flatly with opposite side flanges 69 embracing opposite side portions 70 of said rearward projection. The bracket is secured to a wall or other structure W, as by means of screws 71, 71 received through apertures in the bracket wall, at least one of these screws having its head 72 concealed by the abutting portion of the base projection 65. Base 13 is removably attached to the bracket 68, after it is attached to wall W, as by screws 73, 73 received through apertures in the base 13, from the interior thereof, and threaded into the bracket wall 67. Thus, the dispenser can only be removed from wall W by removal of the cap 20, receptacle 10 and any material S which may be in the dispenser.

For a cycle of operation of the improved machine to dispense paste-type hand soap S, for example, it is only necessary for the operator, standing in front of the machine, to turn the handle 43 a quarter turn forwardly, with one hand, while cupping the other hand under the extrusion orifice 29, and then releasing the handle immediately upon the same reaching a positive stop, that is, by the valve plate 35 engaging stop clip 41 (see Figure 4), thereby allowing the spring 46 to return the valving and pressure-applying parts to the normal posi tions thereof. Said forward movement of the handle is etfective by rearward swinging movement of pin 51, engaging the rearmost lug 52, to rotate ring 32 and move the valve plate 35 out of yielding sealing engagement with the tube 37, that is from the full line position shown in Figures 3 and 4 to the chain-dotted position shown in Figure 4. Simultaneously with opening of valve 28, the clutch 50 is actuated to turn gear 56 (Figures 4 and 5) and meshing gear 54, and by consequent rotation of the threaded sleeve 53 to apply a downward screw force to the non-rotatable piston 31, the slight downward movement of the piston being suflicient to eject a predeterminately small amount of the soap S into the cupped band (see chain-dotted lines in Figure 3). Conversely, said spring-pressed return movement of the handle is eifective to swing pin 51 rearwardly to move the valve plate 35 into engagement with the seat portion 37a of tube 37, the spring-pressure of said tube against said plate assuring a complete seal against leakage of soap due to residual pressure in the container of soap S. Because the one-way clutch 50 is effective only in forward direction of operation, the sleeve 53 is turned in pressureapplying direction only and hence repeated operation of the dispenser is effective to move the piston steadily downward until it reaches the unthreaded portion 62 of the sleeve.

When the container 10 is empty it is only necessary to remove the cap 22 and piston 31, and after replacing the empty container with a full one from which covers (not shown) have been removed from both ends (see Figure 3), replacing the piston on the sleeve and clamping the cover 20 on the upper end of the full container, as described above. This replaceable feature greatly facilitates convenient and economical maintenance of soap supply to dispensers in garages, service stations, machine shops and the like, because the containers in'which the soap is shipped or stored become integral parts of the dispensers.

Modifications of the invention may be resorted to without departing from the spirit thereof or the scope of the appended claims.

What is claimed is:

l. A soap or like dispenser, comprising a relatively fixed part having an extrusion opening from an inner portion thereof to the exterior, valve means in said part including a peripheral seat at the inner end of said opening and an annular clement rotatably mounted on said relatively fixed part, said element having a closure member rotatable therewith from and toward closed complemental seating position on the seat, control means for rotating said element and closure member to open and close said valve, a paste container mounted on said part and having its interior in communication with said inner end of said extrusion opening to supply paste therefrom to said valve means, and means operable by said control means in-synchronism with operation of said valve means for forcing paste from the container toward said extrusion opening, said valve opening including a recess opening inwardly of said part and terminating outwardly in an outer extrusion orifice, and a depressible spring-pressed tubular element in said recess, said valve seat being a freely protruding rim of said tubular element at the inner end thereof against which said closure member normally seats in yielding sealing relation, said annular element providing .free passage therethrough of paste from said container to said valve means,

2. A soap or like paste dispenser, comprising a relatively fixed base having a seat portion, .a shaft fixed to said base to extend axially outwardly of said seat portion, a sleeve rotatably received on said shaft,la container for the paste having an open end received in said seat, a cap havingv a seat portion receiving the other end of said container, clamping means connected to the outer end of said shaft including a member adjustable against said cap to clamp the container between the cap and said base, a piston threaded on said sleeve to be slidable Within the container and adapted to be held against rotation therein by pressure against paste in the container, control means operable to rotate said sleeve progressively in one direction and thereby by screw action [on said shaft] between said sleeve and said piston progressively move said piston axially against the paste to apply pressure thereto, said base having a wall portion provided with an extrusion opening extending from the interior to the exterior thereof, and valve means synchronized with operation of said control means to open said extrusion opening for a predetermined length of time to dispense paste from the container, said sleeve having an unthreaded reducted portion at the inner end thereof adjacent said seat portion in which reduced portion said piston is freely rotatable at the inner end of the stroke thereof.

3. A soap or like paste dispenser, comprising a base having a seat portion, a shaft-fixed to said base to extend outwardly of said seat, a sleeve rotatably received on said shaft, a container for the paste having an open end received in said seat, a cap having a seat portion receiving the other end of said container, clamping means connected to the outer end of said shaft including a member adjustable against said cap to clamp the container between the cap and said base, a piston threaded on said sleeve to be slidable within the container and adapted to beheld against rotation therein by pressure against paste in the container, control means manually operable to rotate said sleeve progressively in one direction .and thereby by screw action [on said shaft] between said sleeve and said piston progressively move said piston axially against the paste to apply pressure thereto, and valve means synchronized with operation of said control means to open for a predetermined length of time to dispense paste from the container, said control means comprising a stem-rotatably mounted in said base, an operating-handle mounted on said stem outwardly of said base, a one-direction clutch having a part in said base rotatable with said stem and a part rotatable independently thereof in operatively disengaged condition of the clutch parts, driving means between said independently rotatable part and said sleeve for rotating the sleeve on said shaft, movement of said handle in said one-direction thereby engaging said clutch parts to rotate said sleeve through said driving means.

4. .A soap or like dispenser as set forth in claim 3, said control means including stop means for limiting the stroke of said handle from a normal inoperative position thereof, and spring means for returning said handle to said normal position.

'5. A soap or like dispenser as set forth in claim'4,

:said stop means being adjustable to vary said stroke and thereby vary the amount of paste dispensed.

6. A-soap or like paste dispenser, comprising a base having a seat portion, a shaft fixed to said base to extend outwardlyof said seat, a sleeve rotatably received on said shaft, a container for the paste having an open end received in said seat, a cap having a seat portion receiving the other end of said container, clamping means connected to the outer end of said shaft including a member adjust- .able against said cap to clamp the container between the ,cap and said base, a piston threaded on said sleeve to [on said shaft] befween said sleeve and said piston progressively move said piston axially against .the paste to apply pressure thereto, and valvemeans synchronized with operation of said control means to open fora .predetermined length of time to dispense paste from the container, said clamping means comprising a turning member having a neckpor'tion rotatably extended through said cap and adjustablythread'ed onto the-outer endtof said' shaft, the inner end of said neck-portion providing a stop shoulder retaining said sleeve against outward axial movement thereof on the shaft, said turning member having a nut threaded thereon to apply clamping pressure inwardly against the cap.

7. A soap or like paste dispenser, comprising a base having a seat portion, a shaft fixed to said base to extend outwardly of said seat, a sleeve rotatably received .on said shaft, a container for the paste having an open end received in said seat, aicap' having a seat portion receiving the other end of said container, clamping meansconnected to the outer end of said shaft including ameniber adjust-able against said cap to clamp the container betweentthe cap and said base, a pis'ton threaded on said sleeve to be slidable within the container and adapted to be held against rotation therein by pressure against paste in the container, control means operable to rotate said piston progressively move said piston ,axiallyagainst the paste to apply pressure thereto, and valve means-synchronized with operation of said controlmeans to open "fora predetermined length of time to dispense pastefrom the container, said clamping means comprising a"turning member having a neck portion rotatably extended through said cap and adjustably.threadedtonto theouter end of said shaft, the inner end of said neck portion providing a stop shoulder retaining said sleeve against outward axial movement thereof on the shaft, said turning member having'a nut threaded thereon to apply clamping pressure inwardly against the cap, the inner end of said .neck portion extending through said cap and having means thereon for retaining the turning member on the cap.

8. A soap or'likepaste dispenser, comprising a base having a seatportion, a shaft fixed to said base to extend outwardly of said seat, a sleeve rotatably received, on said shaft, a container for the paste having'an open end received in said seat, a cap having a seat portion receiving the other end of said container, clamping means connected to the outer end of said shaft including a member adjustable against saidcap to clamp the container .between the cap and said base, a piston threaded on.said sleeve to be slidable within the container and adaptedto be held against rotation therein by pressure againstpaste in the container, control means operable to rotate said sleeve progressively in one direction and thereby by screw action [on said shaft] between said sleeve and said piston progressively move said piston axially against the paste to apply pressure thereto, and valve means synchronized with operation of said control means to open'for a-predetermined length of time to dispense paste from the container, said valve means comprising an extrusion orifice, a valve seat at the inner end. of said orifice, an'annulus rotatably mounted in said base and having a closure element normally seating on said seat, spaced shoulder portions on said annulus, a protrusion also movable by said control means and engaging between said shoulder portions, movement of said protrusion by said control means thereby rotating said annulus in synchronism with said axial movement of the piston to rotate said annulus and correspondingly to move said closure element from and toward said seating position on said valve seat.

9. A soap or like paste dispenser, comprising a base having a seat portion, a shaft fixed to said base to extend outwardly of said seat, a sleeve rotatably received on said shaft, a container for the paste having an open end received in said seat, a cap having a seat portion receiving the other end of said container, clamping means connected to the outer end of said shaft including a member adjustable against said cap to clamp the container between the cap and said base, a piston threaded on said sleeve to be slidable within the container and adapted to be held against rotation therein by pressure against paste in the container, control means manually operable to rotate said sleeve progressively in one direction and thereby by screw action [on said shaft] between said sleeve and said piston progressively move said piston axially against the paste to apply pressure thereto, and valve means synchronized with operation of said control means to open for a predetermined length of time to dispense paste from the container, said control means comprising a stem rotatably mounted in said base, an operating handle mounted on said stem outwardly of said base, a one-direction clutch having a part in said base rotatable with said stem and a part rotatable independently thereof in disengaged condition of the clutch parts, driving means between said independently rotatable part and said sleeve for rotating the sleeve on said shaft, movement of said handle in said one-direction thereby engaging said clutch parts to rotate said sleeve through said driving means, said valve means comprising an extrusion orifice, a valve seat at the inner end of said orifice,

. an annulus rotatably mounted in said base and having a closure element normally seating on said seat, spaced shoulder portions on said ring, a protrusion movable with rotation of said stem and engaging between said shoulder portions, movement of said protrusion upon turning said handle operating in synchronism with said axial movement of the piston to rotate said annulus and correspondingly move said closure element from and toward said seating position on the seat.

10. A soap or like paste dispenser, comprising a relatively fixed base having an upwardly presented peripheral seat portion, a container for the paste having an opening at one end, means for releasably securing said container with said one end thereof downwardly seated on said seat portion of the base, pressure means operable against paste in said container, control means for actuating said pressure means progressively to apply pressure to the paste, said base having a wall portion provided with an extrusion opening extending from the interior to the exterior of the base, valve means in said base including a seat at the inner end of said extrusion opening and an 7 element continuously in contact with and movable relamined length of time to dispense paste from the container.

11. A soap or like paste dispenser, comprising a relatively fixed base having a seat portion, a shaft fixed to said base to extend outwardly of said seat, a sleeve rotatably received on said shaft, a container for the paste having an opening at one end, said one end of the container being received in said seat, a cap having a seat portion receiving the other end of said container, clamping means connected to the outer end of said shaft and including a member adjustable against said cap to clamp the container between the cap and said base, a piston threaded on said sleeve to be slidable within the container and adapted to he held against rotation therein as by pressure against paste in the container, control means operable to rotate said sleeve progressively in one direction and thereby by screw action [on said shaft] between said sleeve "and said piston progressively move said piston axially against the paste to apply pressure thereto, said base having an extrustion opening from an inner portion thereof to the exterior, valve means in said base ineluding a seat at the inner end of said extrusion open ing and an element shiftably mounted on said base, said element having a closure member shiftable therewith from and toward closed complemental seating position on said extrusion opening seat, said element being shiftable by operation of said control means in synchronism with said axial movement of said piston to move said closure member from said seat for a predetermined length of time to dispense paste from the container.

12. A soap or like material dispenser, comprising a relatively fixed base and a separate cap having opposed peripheral seat portions, said base and cap being adapted to have opposite peripheral ends of a container of said material received in said seat portions, a post atfixed to said base to extend centrally through the container, releasable clamping means on the outer end of said post for clamping the container in seated relation between said base and cap, said base having a Wall portion provided with an extrusion orifice extending from the interior of said base to the exterior thereof, valve means in said base adapted to open and close said extrusion orifice with respect to the interior of the container, a piston operable in the container, manually operable control means, and means actuated by said control means for urging said piston to apply pressure against material in the container and simultaneously opening said valve means, thereby to dispense a predetermined amount of the material through said extrusion orifice.

13. A soap or like paste dispenser, comprising a relatively fixed base having an upwardly presented peripheral seat portion, a container for the paste having an opening in at least one end, means for releasably securing said container with said one end thereof downwardly and nonrotatably seated on said seat portion of the base, pressure means operable against paste in said container, control means including a shiftable member for actuating said pressure means progressively to apply pressure to the paste, said base having an extrusion opening means therein for passage therethrough of paste exteriorly from the container and received through said one opening thereof, valve means including relatively movable closure parts for opening and closing aid extrusion opening means to said passage of paste exteriorly, seat means in said base and an element shiftdble in said seat means by operation of said control means in synchronism with shifting of said shiftable member, means actuated by said relative movement of said element for relatively moving said relatively movable closure parts between valve-opening and valveclosing positions thereof, said element thereby being shiftable by said control means in synchronism with application of said pressure to the paste to actuate said movable closure parts to valve-opening position thereof for a predetermined length of time to dispense paste from the container.

14. A soap or like paste dispenser, comprising a relatively fixed base having a seat portion, a shaft fixed to said base to extend outwardly of said seat portion, a sleeve rotatably received on said shaft, means for retaining said sleeve against axial movement on said shaft, a container for the paste having an opening atone end, said one end of the container being received in said seat portion, a piston threaded on said sleeve to be slidable within the container and adapted to be held against rotation therein as by pressure against paste in the container, control means operable to rotate said sleeve progressively in one direction and thereby by screw action between said sleeve and said piston progressively move said piston axially against the paste to apply pressure thereto, said base having an extrusion opening means therein for passage therethrough of paste exteriorly from the container, valve means including relatively movable closure parts for opening and closing said extrusion opening means to said passage of paste exteriorly, seat means in said base and an element operable in said seat means by operation of said control means when said pressure is applied, means actuated by said relative movement of said element for relatively moving said relatively movable closure parts between valveopening and valve-closing positions thereof, said element thereby being shiftable by said control means in synchronism with application of said pressure to the paste to actuate said movable closure parts to valve-opening position thereof for a predetermined length of time to dispense paste from the container.

15. A soap or like material dispenser, comprising a relatively fixed base having a peripheral seat portion, said base being adapted to have a peripheral end of a container of said material received in said seat portion, a post aflixed to said base to extend centrally through the container, said base having extrusion opening means for passage therethrough of material exteriorly of the container, valve means in said base adapted to open and close said extrusion opening means with respect to the interior of the container, a piston operable in the container, manually operable control means for urging said piston to apply pressure against material in the container and simultaneously opening said valve means, thereby to dispense a predetermined amount of the material through said extrusion opening means, a threaded sleeve rotatably received on said post, and means on said post for retaining said sleeve against axial movement thereon, said sleeve being rotatable on said post and said piston being in threaded connection on said threaded sleeve, said control means being operable to rotate said sleeve whereby through said threaded connection said piston is urged to apply said pressure to the material.

16. A soap or like material dispenser, comprising a relatively fixed base having a peripheral seat portion, said base being adapted to have a peripheral end of a container of said material received in said seat portion, a

post affixed to said base to extend centrally through the container, said base having extrusion opening means for passage therethrough of material exteriorly of the container, valve means in said base adapted to open and close said extrusion opening means with respect to the interior of the container, a piston operable in the container, manually operable control means for urging said piston to apply pressure against material in the container and simultaneously opening said valve means, thereby to dispense a predetermined amount of the material through said extrusion opening means, a threaded sleeve rotatably received on said post, and means on said post for retaining said sleeve against axial movement thereon, said sleeve being rotatable on said post and said piston being in threaded connection on said threaded sleeve, said control means being operable to rotate said sleeve, whereby through said threaded connection said piston is urged to apply said pressure to the material, said sleeve having an unthreaded reduced portion at the inner end thereof in which said piston is disengaged from the threaded portion of the sleeve and thereby to relieve the pressure of the piston.

References Cited in the file of this patent or the original patent UNITED STATES PATENTS 825,136 Kurrell July 3, 1906 1,075,099 Gruenttner Oct. 7, 1913 1,084,537 Clark Jan. 13, 1914 1,300,183 McLaughlin Apr. 8, 1919 1,359,116 Skelly Nov. 16, 1920 1,598,970 Kasper Sept. 7, 1926 1,761,875 Cordell et al. June 3, 1930 2,080,343 Smith May 11, 1937 2,349,726 Holler May 23, 1944 2,404,119 Zanolli July 16, 1946

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