US1548847A - Sealing machine - Google Patents

Description

Aug. M, 1925. 11,548,847

H. H. METCALF A SEALING MACHINE Fil ed Jan. 26, 1925 2 Sheets-Sheet 1 11V I ENTOR Howard h. Metca/f ATTORNEYS Aug. M, 1925. I 1,548,471 H. H. METCALF SEALING MACHINE Filed Jan. 26. 1925 2' Sheets-Sheet 2 0/3// N GNQ 11V V5 N T 0R Haward H .Met calf A TTORNEY Patented Aug. 11, 1925.

UNITED STATES- 1,548,847 PATENT OFFICE.

HOWARD H. METCALF, 0F BATTLE GREEK, MICHIGAN, ASSIGNOR TO BATTLE CREEK BREAD WRAPPING MACHINE CO'., 0F BATTLE CREEK, MICHIGAN.

SEALING MACHINE.

Application filed January 26, 1925. Serial No. 4,777.

To all whom it may concern;

Be it known that I, HOWARD I-I. ME'roALF, a citizen of the United States, residing at Battle Creek, county of Calhoun, State of Michigan, have invented certain new and useful Improvements in SealingMachines, of which the following is a specification.

This invention relates to improvements in sealing machines.

My improved scaling machine is especially designed by me for sealing waxed paper around irregular objects such as loaves of bread, although desirable for use in sealing waxed paper wrappings of other articles or packages.

The main objects of my invention are:

First, to provide an improved sealing machine which is well adapted for the sealing of the waxed wrapping of irregularly shaped loaves of bread such as rye bread, French rolls and the like.-

Second, to provide an improved sealing machine for articles of this class which is very efficient.

Third, to provide an improved sealing machine which may be readily adjusted to articles of various sizes.

Objects pertaining to details and economies of construction and operation of my invention will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification. The invention is clearly defined and pointed out in the claims. A structure embodying the features of my invention is clearly illustrated in the accompanying drawing forming a part of this application, in which:

Fig. I .is a fragmentary plan View of a sealing machine embodying the features of my invention.

Fig. II is a side elevation thereof.

Fig. III is a detail View partially in vertical section on a line corresponding to line 3-3 of Fig. I.

Fig. IV isa detail view partially in vertical longitudinal section on a line corresponding to line 4-4 of Fig. I.

In the drawing the sectional views are taken looking in the direction of the little arrows at the ends of the section lines'and similar numerals of reference indicate similar parts in all of the views.

Referring to the drawing, I provide a frame comprising a pair of longitudinal base members 1, side members 2 and end cross members 3. Toward the front of the machine I mount a sealing plate 4. The

plate illustrated is electrically heated, the heating unit being indicated at 5 in Fig. IV.

The heating plate is provided with laterally projecting brackets 6 which form supports for the inner ends of the fixed intermediate way members 7 and 8, the outer ends of these members being supported by the frame cross members 3.

The way further comprises adjustable front way members 9 and adjustable rear 7 way members 10, there being in the structure illustrated removable way members 11 and 12 'carried'by the rods 13 on the adjustable way members. The adjustable.

way members 10 are supported at their .7

front ends on the carriages 14 which are supported by the front slide-rods 15 and. the adjusting and supporting rods 16 arranged at the rear of the heating plate. This adjusting rod 16 has right and left hand threads engaging the carriages so that they are simultaneously adjusted to and from each other. The rear ends of the rear adjustable way members 10 are carried by slides 17 on the rear slide rods 18. With this arrangement the width of the way can be readily adjusted.

The way side members 19 are carried by the brackets 20 on the front and rear adjustable way members, these side members having pins 21 slidable through the bracket and yieldingly supported by the coiled springs 22. The pressure bars 23 are supported above the 'way for yielding and rocking movement so that they readily adjust themselves to irregularly shaped loaves and loaves of varying sizes. These pressure bars 23'are carried by hanger rods 24 reciprocatingly mounted in the supporting brackets 25, the pivots 26 which connect the bars to the rods being disposed longitudinally of the bars, thus allowing for lateral adjustment of the bars to the articles wrapped and also for the vertical movement ofthe bars to accommodate articles of varying height;

of the springs. The stop collars 30 on the upper ends of the rods engage the brackets to limit the downward movement of the pressure rods.

The brackets 25 are adjustably mounted on the cross rods 31 carried by the uprights 32 disposed on the adjustable way members 10 at the outside of the way side members 16. To permit adjustment of the way members the rods are adjustably secured to the uprights 32 by means of thumb screws 33. The brackets 25 are adjustably secured to the rods 31 by means of thumb screws 34. I thus provide for rapid adjustment to meet the requirements of the particular style of loaf being wrapped.

Loaves of rye bread, French rolls and the like are not of a shape which makes it practical for automatic or machine wrapping, at least, for the small producer. My present machine is designed for the rapid and eifective sealing of loaves of this character which have been wrapped by hand, the wrapper being arranged so that the fold is at the bottom of the loaf, the loaf is placed upon the way and pushed under the pressure bars which project over the heating plate, the loaf being pushed on to the way at the rear of the heating plate. The wax has suflicient time to set as the loaf is carried on through the machine by succeeding loaves fed into the machine.

I have illustrated and described my improvements in an embodiment which I have found very practical. I have not attempted to illustrate or describe certain modifications and adaptations which I contemplate as it is believed that this disclosure will enable those skilled in the art to embody or adapt my improvements as may be desired.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a sealing machine, the combination with a frame, a bottom heating plate, transversely disposed front and rear slide rods, a carriage supporting and adjusting rod disposed at the rear of said heating plate and provided with right and left hand threads, carriages mounted on said adjusting rod and slidable on said front slide rod, front and rear way members mounted on said carriages, the rear way members being provided with slides on said rear slide rod, way side members yieldingly mounted on said way members, longitudinally disposed top pressure bars, supporting means therefor comprising uprights mounted on said rear way members at the outside of said side members, cross rods carried by said uprights, brackets adjustably mounted on said cross rods, vertically disposed hanger rods reciprocatingly mounted on said brackets and to which said pressure bars are secured by pivots disposed longitudinally of the meme? pressure bars, pressure springs arranged on said hanger rods with their upper ends in engagement with said brackets, thrust collars for said springs adjustable on said hanger rods, and adjustable stop collars mounted on said hanger rods above said brackets.

2. In a sealing machine, the combination with a frameQa bottom heating plate, transversely disposed front and rear slide rods, a carriage supporting and adjusting rod disposed at the rear of said heating plate and provided with right and left hand threads, carriages mounted on said adjusting rod and slidable on said front slide rod, front and rear way members mounted on said carriages, the rear way members being provided with slides on said rear slide rod, way side members yieldingly mounted on said way members, longitudinally disposed top pressure bars, supporting means there for comprising uprights mounted on said rear way members at the outside of said side members, cross rods carried by said uprights, brackets adjustably mounted on said cross rods, vertically disposed hanger rods reciprocatingly mounted on said brackets and to which said pressure bars are secured by pivots disposed longitudinally of the pressure bars, and pressure springs arranged on said hanger rods.

3. In a sealing machine, the combination with a frame, a bottom heating plate, transversely disposed front and rear slide rods, a carriage supporting and adjusting rod dis posed at the rear ofsaid heating plate and provided with right and left hand threads, carriages mounted on said adjusting rod and slidable on said front slide rod, front and rear way members mounted on said carriages, the rear way members being provided with slides on said rear slide rod, way side membersyieldingly mounted on said way members, longitudinally disposed top pressure bars, supporting means therefor comprising brackets supported for lateral adjustment above said ways, vertically disposed hanger rods reciprocatingly mounted on said brackets and to which said pressure bars are secured by pivots disposed longitudinally of the pressure bars, pressure springs arranged on said hanger rods with their upper ends in engagement with said brackets, thrust collars for said springs adjustable on said hanger rods, and adjustable stop collars mounted on said hanger rods above said brackets.

4. In a sealing machine, the combination with a frame, a bottom heating plate, transversely disposed front and rear slide rods, a carriage supporting and adjusting rod disposed at the rear of said heating plate and provided with right and left hand threads, carriages mounted on said adjusting rod and slidable on said frontslide rod, front and rear way members mounted on said carmesses? vided with slides on said rear slide rod, way

side members yieldingly mounted on said Way members, longitudinally disposed top pressure bars, supporting means therefor comprising brackets supported for lateral adjustment above said Ways, vertically disposed hanger rods reciprocatingly mounted on said brackets and to. which said pressure bars are secured by pivots disposed longitudinally of the pressure bars, and pressure springs arranged on said hanger rods.

5. In a sealing machine, the combination of a bottom heating plate, ways operatively associated therewith, top pressure bars dis posed longitudinally above said ways, supporting means thereforcomprising uprights mounted on said way members at the outside of said side members, cross rods carried by said uprights, brackets adjustably mounted on said cross rods, vertically disposed hanger rods reciprocatingly mounted on' said brackets and to which said pressure bars are secured by pivots disposed longi-' tudinally' of the pressure bars, pressure springs arranged on said hanger rods with their upper ends'in en agement with said brackets, thrust collars or said springs adjustable on said hanger rods, and adjustable stop collars mounted on said hanger-rods above said brackets. v 6. In a sealing machine, the combination of a bottom heating plate, ways operatively associated therewith, top pressure bars disposed longitudinally above said ways, supporting means therefor com rising uprights mounted on said way members at the outside of said side members, cross rods carried by said uprights, brackets adjustably mounted on said cross rods, vertically disposed hanger rods reciprocatingly mounted on said brackets and to which said pressure bars are secured by pivots disposed longitudinally of the pressure bars, and pressure springs arranged on said hanger rods.

7. In a sealing machine, the combination of abottom heating plate, ways operatively associated therewith, top pressure bars disposed longitudinally above said ways, sup-,

porting brackets therefor mounted for lateral adjustment above said ways, reciprocating hanger rods carried by said" brackets,

- pressure springs for said pressure bars, ad-

justable means for limiting the downward movement of said pressure bars, and means for adjusting the pressure of said springs.

8.. In a sealing machine, the combination with a frame, a bottom'heating plate, laterally adjustable way members, longitudinally disposed top pressure bars, supporting means therefor comprising brackets supported for lateral adjustment above said ways, vertically disposed hanger rods recipsaid bars are pivotally mounted for lateral rocking movement, and pressure springs for said pressure bars.

10. In a sealing machine, the combination of a way, a heatingplate operatively associated therewith, top pressure bars, and sup ports for said pressure bars mounted for a justment laterally of said way, said pressure bars being mounted for lateral rocking and for yielding vertical movement on said supports. 7 I

11. In a sealing machine, the combination with a frame, a bottom heating plate, laterally adjustable way members, a longitudinally disposed top pressure bar, supporting means therefor comprising a bracket supported for lateral adjustment above said way, and vertically disposed hanger rods reciprocatingly mounted on said brackets and to which said pressure bar is pivotally secured. 12. In a sealing machine, the combination of a way, a heating plate operatively asso* ciated with said way, a top pressure bar disposed longitudinally above said way,

vertically reciprocating, hanger rods on.

which said .bar is pivotally mounted for 1 rocking movement transversely of the way, and a pressure spring for said pressure bar.

13. In a sealingmachine, the combination of a way, a heating plate operatively associated therewith, a top'pressure bar, and a support for said pressure bar mounted for adjustment laterally of said way,'s aid pressure bars being mounted for rocking movement transversely of the way and for yielding vertical movement on said support.

In witness whereof I have hereunto set In hand.

y HOWARD METCALF.

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