US1507406A - Device for melting solids - Google Patents

Description

Sept. 2 1924.

.1. s: vvlLLcox DEVICE FOR MEL'IING SOLIDS 1922 2 Sheets-Shea'` l Filed Dec. 22,

Sept. 2, 11924.`

J. S. WILLCO X DEVICE FOR MELTING SOLIDS 2 Sheets-Sheet 2 anne/Wto@ le Sarei/ea [7l/lidar Filed Deo. 22.

panying drawings means for carrying t Patented sega. ai 192e.

UNlTF@ TATES ATENT Fliilhl.

,JLE SCREVEN "WILLCOX, OF SAVANNAH, GEGRGA.

DEVC] FR- MLTNG SOLDS.

Application .tiled December 22, 1922. .SeriaI No.62550'?.

vices for Melting Solids, of which the fol` lowing is a specification.

My invention relates to devices for meltm0 solids and more Jarticularl 1 to that class s l l Aof devices used 'for melting sealing wai: and

similar materials.

An object of my invention is to provide a device which will quickly and easily heat a charge of sealing wasr and permit a portion of said charOe to loe evacuated while at L23 the same time the device may he held steady .hy supports attached to the device.-

Another object of my invention to pro vide efficient manually controlled means whereby the flow of melted material from 'the discharge opening may he prevented or regulated.

A still further object of my invention is to provide a device having a removable handle which may he readily detached to Dpermit the insertion of a charge in the oven.

Another object ot my invention is to provide a device carrying a sealing stamp which is continually s d automatically kept clean and which, when not in use, operates to cause the stoppage of the 'flow of melted material which there are few parts to get'out of order.

lilith these and other c Vects in view which may he incident to my improvements, the invention consists in the parts and com hinations to loe hereinafter set forth and claimed, with the understanding that the several necessary elements comprising my invention, may he varied in construction, proportions and arrngement7 without de parting from the spirit and scope of the appended claims.

ln order to malte my invention more clearly understood' l have shown in the accomhe ting same into practical effect7 without the improvements in Atheir useful applica" tions to the particular constructions.which forthe purpose 'of explanation. have been made the suhjectfof illustration.

In the drawings:

Figure lis a view in side elevation of my device;

' is a viewpartially in longitudinal section taken through the axisof my device.

Fig'. 3 isa view in longitudinal section taken onlinee-B of Fig. l;

Fig. Ll is a cross-sectional view taken on the line 4 4 of l. looking in the direction of the arrows;

Fig. 5 is a `cross-sectional view taken on the line 5 5 of Fig. il, looking in the direction of the arrows;

Fig. 6 is a cross-sectional view talren on the line 6 6 of Fig. Blocking in the direction of the arrows;

Fig. '7 is an end view of my device; y

Fig. 8 Vis a detail of the oven construction showing the ,distribution of the resistance element.

My device comprises a heating vessel formed of electrical insulating material and having at one end a discharge opening. ln proximity to the discharge opening is located an electrical resistance element wound in doulole spirals in grooves on the lit-:ating` vessel. `Over the resistance material is a layer of heat and electric insulating material; which latter is covered by a shell. A detachable handle forms the lease of the heat ingchamloer; and exterior and interior plugs closing a discharge opening are controlled by Ya mechanism in the handle. il sealing stamp mechanism-is rotatively mounted near the discharge opening ata point adjacent short supporting legs; and a cam on the mounting for the sealing stamp cooperates with mechanism to shut olf the flow of melted material from the discharge opening dur- 3 is removably placed at one vend for the .purpose of making adyastments Aand tor moving ,the parte.

ing vessel in place.

Within the non-conducting layer 3 is a heating vessel 5, preferably of electrically non-conducting material and having at one end, which I designate the oven, aheavy double spiral groove 6 within which is placed an electric resistance element 7. The element is wound in the double spiral grooves so that the conductors 8, which lead up from one end of the heating vessel to the portion which has the spiral grooves 6 therein, are of even length. Y

Nearr the outer extremity of the oven end of the heating vessel 5 I have provided screw-threads 9 which coact with screwthreads 11 of the casing 1 to hold the heatvI have provided the oven Aend of the heating vessel lwith a comcally tapered portion 12 and a discharge opening 13. Through the walls of the heating vessel 5, the annular portion -4 ci the insulating layer and the outer shell 1, I have drilled a holewhich is screw-threaded and provided with a screw-threaded tap 14,

having an opening 15 therein. This opening acts as a vent for the escape of gases produced in melting the substance placed in the heating vessel. By imscrewing the tap 14 the heating and insulating material may be readily removed from the outer shell 1.

The handle 2 its within the casing 1 and its upper portion 16 fits against the lower end of the short annular portion 4 of the non-conducting layer 3,k and against the lower end oit' the heating vessel 5. The upper portion 16 of the handle 2, therefore, forms a base for the heating vessel. A

protecting tube 17 is screwed'at 18 intoy the portion 16 of the handle 2.

Adapted to reciprocate within the protecting tube 17 is a stem 19 upon `which is mounted a ball or plug 21 which may be used to close from the inside the discharge opening 13 of the oven. Belowthe portion 16 of the handle 2 and on the stem 19 is a lug 22 against the upper side of which bears a compression spring 23 whose upper end bears against the heating vessel base 16. This compression s ring normally keeps the plug 21 in t e position shown inFig. 3, that is, withdrawn from the discharge opening 13. Should the plug 21 be in a positon to block up the discharge opening 13, upon heating of the material` within the. oven the material will soon become soft enough to permit the compression spring v23 to withdrawl the plug 21 from the discharge opening. tube 17 prevents injury to the stem 19 in its reciprocating movement within the oven.

Below the lug 22 on the stem 19 is located another compression spring 24. A stop` button 25 prevents the compression spring 24 from slipping off the stem 19. A lever 26 includes between its forked ends 27 the stem 'Ihe protecting 19, and the compression spring 24 is adaptf ed to bear at its lower end against the forked ends 27 or' this lever. The lever is pivoted on ay supportmember 28 by means of a. rocking pin 29. The support member 23 is firmly held within a. tubular guide 31 whose lower end rests against shoulders 32 formed on an annular opening in the handle 2. The upper end of the lever 26 is pivotally connected through a rocker pin 33 to a thumb button 34.- A hole 34 in the thumb button in the down posit-ionof the button is adapted to lie opposite a hole 35 in the tubular guide. By inserting a'. suitable pin through holes 34 and 35 the thumb button 34 may be held in the down position. n

Preferably integrally formed with the thumb button y34 is a lever arm 35 which is pivoted by means of a. rocker pin 36 to an upstanding support 37 iirmly seated within an aperture 38 in the handle 2. The lever a rocker pin 41, rod 42, adapted to reciprocate in a direction substantially parallel 'to the` longitudinal axis of the kheating vessel.

Ihe reciprocating rod 42 is bent at 43 and provided at its upperV extremity with a plug 44 which is adapted to seat against the' eX- terior 'of `the discharge opening 13 to shut .olil the flow of melted material. The rod 42 reciprocates freely through an outstanding support arm 45 which may be integrally' 'formed with the casing l. Mounted on the rod 42 at a point slightly below the support arm 45 is a cam member 46 through which the rod may be reciprocated, in a manner tobe described, irrespective of any manual pressure on the. thumb button 34.v Adapted to iit around the casing lis a holder *meins- 35 is provided with an upstanding arm 39 to which is pivotally connected. by means of l GO ber 47 One side of the holder member passes through a slot 48 in the support arm" 45, and the other part of the holder member 47 passes down under the other side of the casing 1 and is adaptedto i'it over an outstanding lug 49, which passes through an aperture 51 m the holder member 47 *AtJ its lower' extremity the holder member 47 terminates in two short legs 52. The upper part oi lthe holder member 47 is provided vwith carriers and a clamping mechanism 53 in which is held a cleansing sponge 54.

nvthe outstanding'lug 49 is pivoted an arm 55 and pivoted on a lug 56 of the supn port arm 47 is an arm 58. Ihe arm 58 is to cooperate with thel cam member 46 of the reciprocating rod 42. Thearms 55 and 58 arefastened at their upper extremities to a handle 61 by means'ot a pivot pin 62 upon which the handle 61 is rotatively mounted. The handle 61 is provided with a sealing stamp 63.

provided with a cam 59 which is adapted Y 1n order to lead the current into the leads 8 of the heating vessel, the leads 8 are provided at their termini with contact members 64. The handle 2 is provided with two an` bers 64. The lower ends of the conductor .springs 66 contact at their lower ends with conductor vterminals 67.

The conductor terminals 67 constitute the ends of conductors 68 which are consolidated into the lead-in wire 69, that lies within an aperture 71 within the center of `the handle This aperture 71 acts also as a housing tor the end of the stem 19.

The lead-in wire passes through a central aperture 'T2 within a screw 'plug T3 placed at the lower end of the aperture 71. The screw plug 73 is formed with a sup-v porting member or ring 74 by which the device may be hung ona suitable hookwhen not in use. 4The lead-in wire G9 is provided with a screw socket 7 5. A snap` switch T6 may be located near v.the handle 2 for convenience in turning the current on or o.

In use the heating vessel 5 is lilled with a suitable quantity oi' sealing wax or any other material by removing the handle 2. The handle 2 is then slipped into place and the conductor compression springs close the circuit through the screw socket 75, the snap switch 76, the conductors '68 and the resistance coils 7. Should the interior lplug .21 be stuck fast within the discharge apere ture 13 in the oven, the melting of the material in proximity to the Vaperture 13 will permit the'compressionspring23 to withdraw the plug 21 from the aperture. Should it be found desirable to 'close the aperture 13, a pressure on the thumb button 34 will act through the lever 26 to cause thearms 27 to press on the compression spring 24, whichy will overcome the pressure of the compresf sion spring 23 and cause the longitudinal plug 21 to close the discharge aperture 13. Ey reason of the'fact that the-pressure of the thumb button l34 is exerted through a spring 24, damage caused by undue strains and sticking of the plug in the material within the oven, is avoided. At the saine time lever arm 39 is rocked to 'cause -cam member 46 of the .rod/42 to reciprocate the rod in a backward direction. This operates through arm 39, through arm 35 and through lever 26 to transmit motion to the stem 19 to close the discharge aperture 13 from the interior. The backward reciprocation 01": the rod 42 causes the exterior plug 44 to close the discharge aperture 1'3 trom lthe exterior. Therefore, in eachstamping .operation the aperture 13 is closed both from the exterior and'the interior. As has been pre viously explained, this sealing ot the discharge aperture 13 may be accomplished by pressure on the thumb button 34, irrespec- 'tive of the sealing operation.

T have described a device in which the operation of closing the discharge vent may be accomplished either automatically or .at will. Though I have shown the closing of the discharge aperture as accomplished both Atrom the exterior and the interior simultaneously, either of these mechanisms toraccomplishing the exterior and the interior it tobe understood that T do not confine my# self tothe precise details of construction herein set forth, by way of illustration, as it is apparent that many changes vand variations may be made therein, bv those skilled in the art, without departing from the spirit of the invention, or exceeding the scope of 'the appended claims.

T claim:

1. A device of the class specified comprising a heating vessel having a discharge opening therein, an exterior plug for the discharge opening, means to operate said plug, an'interior plug Jfor the discharge is mounted extending through the heating vessel, and means coacting with the stem vto 'normally keep the plug unseated.

4. A device ot the' class specitiedcomprising a heating vessel having a discharge opening therein, an interior plug kfor the Y on the steinwithout the heating vessel, a

f ineansacting'V on said rod a guide on the a lug on the stemy without the heating vessel, and a compression spring between the heating vessel base and the lug for normally keeping vthe plug unseated.

6. A device of .he class-specified comprising a heating vessel having a discharge vopening therein, an interior plug for the discharge opening, a stem on which the plug is mounted extending through the heating vessel, a base ,for the heating vessel, a lug compression spring operating on said lug, and Vresilient means for exerting a compression contra, to that of the' compression spring for seating the plug inthe discharge opening.

7. A device of the class specified comprising a heating vessel having a discharge opening therein, an interior plug for thefdis-v charge opening,.a stem on which the plug is mounted extending through the heating vessel, a base :tor the heating vessel, a lug on the stem below the base, a compression spring on the stem between the lugand the base of vessel, a second compression spring on the stem below the lug, and lever means for exerting compression through the second mentioned compression spring to 'overcome the tirst mentioned spring and seat the plug in the discharge opening. f

8. A device of theclass specified comprising a heating vessel having a. discharge opening therein, an interior plug forv said opening, a'rod carrying said plug, resilient device in which the rod is adapted to reciprocate, and a manually contro-lled lever on the device for reciprocating the rod to seat the plug in the discharge opening.

9. A device of the class specified comprising a heating vessel having 'a discharge opening therein, an exterior plug forsaid.,

opening, a rod carrying vsaid plug, a guide on the device in which the rod is adapted to reciprocate, a cam member on the rod,

y a sealing stamp mechanism pivoted on the device, a cam on the sealing stamp mechanism cooperating with ythe cam member whereby the rod is reciprocated to seat the l plug in the discharge opening during a stamping operation.

l0. A device of the class specified comprising a heating vessel of electrically nonconducting vmaterial having al discharge opening, double spiral grooves on the exterior thereof in proximity to the vdischarge end, an electrical resistance element wound in the double spiralgrooves, anda detachable handle forming the base of the heating. vessel.

11. A device of the class specified comprising a heating vessel of electrically nonconductive material having a -discharge opening, double spiral grooves in the exterior thereof in proximity to the discharge end, an electrical resistance element wound in the double spiral grooves, a detachable handle forming the base of the'heating vessel, a heating insulating cover vover the heating vessel, and anouteir casing, said device having located near the back a vent throughl the outer casing, the heat insulating cover and the heating vessel wall.

l2. A' device of the class specified-'comprising a heating vessel having a discharge outlet, double spiral grooves in the exterior thereof, an outer casing, heat insulating materia-l around said doublefspiral grooves and within the outer casing, and a vent extending through the outer casing, ythe. heat insulating cover and the heating vessel wall.

13. A device of the class specified com-V prising a heating vessel having a discharge outlet therein', a handle on said vessel an outer casing, heat insulatingmaterial between the casing and vessel, means operable from the handle to control the flow of heating material from the vessel, a detachable handle forming a base for the vessel and short legs located' in proximityv to the discharge opening whereby7 the device may be supported and steadied in pouring.

14. A devicev of the class speci-fied comprising a heating vessel having a discharge opening therein, a holder for cleansing inaterial attached to the device near the discharge opening, and a sealing stamp rotatively mounted above the holder and normally in `cont-act with the 'cleansing mate-Y rial whereby the stamp'may be kept constantly-cleansed for instant use.

l5. A device of the class specilied'comprising a heating vessel having adischarge opening therein, a holder for cleansing inaterial attached to the device near the discharge opening, a sealing stamp rotatively mounted above the holder whereby the stamp may be kept constantly cleansedA for instant use, a'plugy vfor the inside of the discharge opening, ya lplug' for the outside ot the discharge opening, a cam carried by the rotatively` mounted sealing stamp mechanism` means cooperating with said cam whereby the exterior and interior plugs will be seated during .the stamping operation.

'16; A device of the class'speciied kcomprising a heating vessel, an electrical resistance heating elementtor theheating vessel, a detachable handle Jfor the heating ves sel havinf` a passageway therein for electrical conductors, a screw-plug for the exterior end of the passageway for guiding the con ductors, and a supporting member integrally formed with the screw-plug for hanging up the device.

17. A device of the class specified comprising a heating vessel having a discharge opening therein, an interior plug for the discharge opening, a stem on which the plug is mounted extending through the heating vessel, means coacting with the stem to normally keep the plug unseated, an exteriorl plug for said opening, a rod carrying said plug, a guide on the device in which the rod is adapted to reciprocate, and a manually controlled thumb lever on the device whereby the rod and stem may be reciprocated to close the discharge opening from both the exterior and the interior.

18. A device of' the class speciiied comprising a` heating vessel having a discharge opening therein, an interior plug for the discharge opening, a stem on which the plug is mounted extending through the heating vessel, a protecting tube through which the stem is adapted to reciprocate, an exterior plug for said opening, a rod carrying said plug, a guide on the device in which the rod is adapted to reciprocate, a cam member on the rod, a sealing stamp mechanism cooperating with the cam member whereby the rod is reciprocated to seat the exterior plug, and means cooperating with the rod to cause the interior plug to seat.

19. A device of the class speciiied comprising a heating vessel having a discharge opening therein., an interior plug 'for the discharge opening, a stem on which the plug is mounted extending through the heating vessel, a protecting tube through which the stem is adapted to reciprocate, a base for the heating vessel, a lug on the stem below the base, a compression spring on the stem between the lug and the base, a second compression spring on the stem below the lug, an exterior plug for said opening, a rod carryinU said plug, a guide on the device in whicih the rod is adapted to reciprocate, a cam member on the rod, a sealing stamp mechanism pivoted on the device, a cam on the sealing stamp mechanism cooperating with the cam member whereby the rod may be reciprocated to seat the plug, a lever means for exerting the pressure on the second mentioned compression spring to overcome the irst mentioned compression spring and seat the interior plug simultaneously with the seating of the exterior plug.

20. A device of the class specified, comprising a heating vessel having a discharge opening therein, a holder for cleansing Inaterial attached to the device near the discharge opening, short legs integrally formed with the holder, and a sealing stamp rotatively mounted above therholder and normally in contact with the cleansing material whereby the stamp may be kept constantly cleansed for instant use.

2l. A device of the class specified comprising a heating vessel having a discharge opening therein, a holder for cleansing materials attached to the device near the discharge opening, a sealing stamp rotatively mounted above the holder and normally in Contact with the cleansing material, a plug for the inside of the discharge opening, and means cooperating with the movement of the stamp to operative position to plug up the discharge opening.

22. A device of t-he class specilied comprising a heating vessel, an electrical resistance element for heating said vessel, a detachable handle for the heating vessel having a passage-way therein, electrical lead-in conductors in said passage-way, and conductor compression springs in said handie connecting the electrical resistance element to the lead-in conductors.

23. A device of the class specified com prising a heating vessel having a discharge opening therein, double spiral grooves on the exterior of the vessel in proximity to the discharge end, an electrical resistance element wound in the double spiral grooves, electrical insulating material wrap ed around the heating vessel and the electrical resistance mounted thereon, an interior plug for the discharge o ening, a stem on which the plug is mounted extending through the heating vessel, a protecting tube through which t-he stem is adapted to reciprocate, an exterior plug for said opening, a rod carrying said plug, a guide on the device in which the rod is adapted to reciprocate, a cam member on the rod, a sealing stamp mechanism cooperating with the cam member whereby the rod is reciprocated to seat the exterior plug, means cooperating with the rod to cause the interior plug to seat, an outer casing, a heat insulating material placed between the outer casing and the electrical resistance andfelectrical insulation, a vent near the back of the device extending through the outer casing, the heat insulating cover and the heating wall, a detachable handle for the heating vessel having a passageway therein l:tor the electrical conductors, a screw plug for the exterior end of the passageway for guiding the conductors, and a support-ing member integrally formed with the screw plug for hanging up the device.

In testimony whereof I aiix my signature.

JULE SCREVEN WILLCOX.

Images