US1573669A

US1573669A - Package-sealing device

Info

Publication number: US1573669A
Application number: US693913A
Authority: US
Inventors: Charles W H Bolingbroke
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-02-19
Filing date: 1924-02-19
Publication date: 1926-02-16
Anticipated expiration: 1943-02-16

Description

Feb. 16 ,1926. 1,573,669

C. W. H. BOLINGBROKE PACKAGE sEALI-NG DEVICE v Filed Feb. 19, 1924 v 4 sheets-sheet 1 I @QQ/009 if eo/ceocaoooe'oe if Mylan @#Wwww gi Feb. 16 ,1926.

c. w. H. BQLINGBROKE PACKAGE SEALIING DEVICE 4 Sheets-Sheet 2 Filed Feb. 19 1.924

Feb. 16 ,1926. y 1,573,669

C. W. H. BOLINGBROKE PACKAGE SEALING DEVICE Filed Feb. 19, 1924 4 sheetssheet 6 PACKAGE SEALING DEVICE Filed Feb. 19 1924? 4 Sheets-Sheet 4 Patented Feb. 16, 1926.

m W. H. BLINGBROKE, OFLOSSANGELES, CALIFORNIA.

ramen-ammo navxcn.

Application mea mmm-y 19, 1924'. bsoma No. 693,913.

To all `whom it may concern.'

Be it known that I, CHARLES-W. H. Bor.-

INGBROKE, a subject of the King of Great device to assist in the rapid handling. of

Britain, residing at Los Angeles, in the county of Los Angeles andState of Call; fornia, have invented new and useful lmprovements in Package-Scali Devices, of which the following is a speci cation.

)My invention relates to package sealing devices, and consists of the novel features herein shown, described and claimed.

An object of my invention is to make a packagesA to be wrapped and' sealed lwith para'in paper.

Another object of` my invention is to make I a device having heaters adapted to soften or melt the `wax or. parailin pa er so that when a package is wrap ed an applied to' the heaters the wax will orm a bond to hold the edges ofthe paper in a sealed position.

Further objects and advantages will appear from the drawings and specifications.

The drawings illustrate the invention.

l Figure 1 is a top plan view of a ackage wrapping and seali machine em lying the principles of my invention, the view being taken looking downwardly in Figs. 2 and 3.

Fig. 2 is a sidev eleva 'ion looking in the 1 .direction indicated by the arrow 2 1n Figs.

1 and' 3. y

Fig. 3 is a vertical line 3 3 of Fig. 1. l

Fi 4 is a fragmentary vertical sectional deta onthe lines of Figs, land 3..

Fig. 5 is a fragmentary sectionaldetarl on the lines-5 5 of Figs. 1 and' 7.

Fig. 6 is a fra entary sectionaldetail on thelinesfo Figs. 1 and 7. Fig. 7 is a fragmentary end elevation cross section on the looking in .the direction indicated by the arrows 7 in Figs. 1 and 2.

Figs. .8, 9,' 10, 11, 124and 13, are diagrammatic views illustrating the operation of wra ping and .sealing a package. von the mac meA shown in Figs. 1 to 7.

The details of the package wrapping and sealing device are as follows:

` brackets having parallel ots 16 through The machine is` adapted to be mounted upon a flat table top boards 2 and 3'are rigidly secured together by cross pieces 4 and a cooling top 5. An-

brackets

6, 7, 8 and 9 are mounted upon the top 5, the horizontal rtions of the or bench 1, the side which screws 11 are inserted intothe top 5 so that the brackets may be moved 'inwardly or outwardly.

Adjustable side boards

12 and 13 having

sheet metal linings

14 and 15 are secured to the vertical arms of the '

brackets

6, 7, 8 and 9. The forwlard end of the lining 14 extends beyond the board 12 and is curved outwardl to make a guide 16. The forward end o the lining 15 is curved 'outwardly to make a support 17 for the leaf springs 18, said springs being secured to the support are bowed inwardly and the rear ends of the springs are bent outwardly to form the guides 20 extending loosely through holes in the linin within the

llnings

14 and 15 forms a cool? in table 21. y

he end

heaters

22 and 23 are mounted in front of the cooling table 21. The Work table 24 is mounted in front of the

heaters

22 and 23 andthe side heater 25 is mounted in front of the vwork table 24 and at the extreme forward end of the machine.

The details of the

heaters

22 and 23 are as follows: Plates 26 and 27 overlap the side boards 2 and are secured to the side boards 2 by -bolts 28, said plates being inside of the ends Cross

bars

29 and 30 of the side boards. connect the plates 26 and 27 and have in- 'wardly extendi

ribs

31 and 32 and 33 and 34 forming sli eways 35 and 36 for the

boards

37 and 38. Bearing blocks 39 and extend downwardly from the boards 37 and38 and a lscrew 41 has right and 'left threads extending through the

bearing blocks

39 and 40 and the-screw is held from endwise movement by set collars 42 and 43, one end of the screw being mounted in the plate v27 and the other end of the screw extending through the plate 26 anda handle 44 is fixed u on the screw 41 outside of the -plate 26 so t at bymanipulating the handle 44 the

boards

37 and 38 may be moved to or from each other. Blocks 45 and 46 of heat insulation, such as fibre, are secured to the boards 37n and 38 and extend outwardly beyond the outer edges ofI the boards.

Castings 47 and 48 form housings for the heating elements 49. The casting 48 has a flan e 50 resting upon the heat insulation 45 an connected to the board 37 by screws 51. The castings 47. and 48 are secured together by screws 52 and form chambers 53 17 by rivets or small bolts 19 and the springs 15 and board 13. .The lspace A in which the heating elements 49 are mounted. The blocks 54 of heating insulation material is placed in the chambers outside of the heating elements 49 to reduce the radiation of the heat outwardly.

The castings 47 and 48 of the heatei 22 are mounted upon the heating insulation material 46 and secured to the board 38 by screws 55.

The heating plates 56 and 57 are mounted inside of the castings 48. Rods 58 and 59 are secured to the plates 56 and 57 and cxtend through openings in the castings 47 and 48 and have nuts 60 upon their inner ends to limit the inward movements of the plates. T he outer ends of the rods 58 and 59 bear -againstleaf springs 6l and 62 so as to yieldingly mount the hea-ting plates 56 and 57, the tensions of the springs being exerted to move the plates inwardly away from the castings 48. The springs 61 and 62 are secured to the ends of a cross bar 63 and the cross bar 63 is mounted upon a stud bolt 64 fixed in the casting 47 and having a nut 65 on its outer end so that by manipulating the nut 65 the tensions of the springs may be regulated.

Sleeves 66 are placed against the upper ends of 'the castings 48, cover plates 67 of heating insulation are vplaced upon the sleeves 66 and extend outwardly and the covers are held in place by cap screws 68 inserted through the plates 67 and through the sleeves 66. Sleeves 69 of heat insulation material fit against the outer sides and lower ends of the castings 47 and housings 70 fit against the sleeves 69 and are held in place by screws 71 inserted through the housings and through the sleeves and tapped into the castings 47, said housings having vertical plates extending upwardly and then horizontal portions extending inwardly and resting upon the plates 67 so as to completely enclose the heating elements.

The lower edges of the plates 26 and 27 are cut away to form air inlets 72 for cooling parts. Boards 73 and 74 are laid crosswise of the plates 26 and 27 and spaced apart and rigidly secured in place, a spacing board fits between the boards 73 and 74 and rabbet joints 76 and 77 are formed, said board 75 fitting between the castings 48 of the heaters 22 yand 23 and the length of the board 75 determines the length of package the machine is set to handle. If a dif-` ferent package is to be handled the handle 44 is manipulated to move the heaters apart to release the board 75 andthe boardv75 is rclnoved and a longer or shorter board inserted. The switch transformers 78 and 79 are mounted against the out-er face of the plate 27. A guard 80 is secured tothe frame and extends outwardly and alongside of the switches to protect the switches.

The

side boards

81 and 82 are lapped upon the

boards

81 and 82 against the board '0 over the forward ends of the plates 26 and 27 and secured in place by bolts 83, said

boards

81 and 82 being substantially llke the boards 2. The working board 24 fits '74 and has front small perforations 84 and rear larger pcrforations 85. A heat insulating board 86 of fibre or the like is mounted upon the

boards

81 and 82 against the working board 24. The upper and lower edges of the boards 8l and 82 are cut away to

forni openings

86 and 87 for 'the circulation of all'.

The details of the heater 25 are as follows:

The forward ends of the

boards

81 and 82 are cut down halt way from their to s, the cut extending soniedistance from t e extreme forward ends to form notches for mounting the heaters. A substantial board 88 is mounted crosswise in the notches and connects the

boards

81 and 82. A second board 89 extends upwardly from the inner end of the board 88. A casting 90 `fits upon the board88 yagainst the board 89, a heat insulation board of fibre or the like 91 rests upon the casting 90 and

flanges

92 and 93 extend upwardly from the edges of the casting 90. The heating element 99 is mounted upon the fibre board 91 within the

flanges

92 and 93, the casting 100 covers the heating element 99 and has downwardly extending flanges'` to match the

flanges

92 and 93.

A finished working plate 101 is lmounted upon the casting 100 and screws 102 extend 100 downwardly through plate 101 through the flanges of the casting 100 and are tapped into the flanges 92- and 93. An end board 103 fits against t-he ends Aof the

boards

81 and 82 and extends as high as the platev 101. A 4105 small roller 104 is mounted with its pintles in the board 103 and the board 89 to form a finished end for the heater 25.

Clamps 105 have attaching plates 106 secured to the

boards

81 and 82 and the clamp- 110 ingarms 107 extend downwardly from the plates 106 against the end of the table top 1 and the bearing 108 has a screw 109 to engage under the table top and clamp the machine firmly in place upon the table top. 115 A housing 110 is secured to the right hand clamp 105 andl extends outwardly and upwardly and inwardly to cover the electrical connections 111 leading to the heater.

The elements of the

heaters

22, 23 and 25 120 may be electrically connected to andv from the switches 78 and 79 in the usualway.

Referring to Figs. 8 to 13, the operation is as followsz.

Assuming that the package 112 to be 125 wrapped and sealed is a rectangular prism, such as a pound of butter in a box or carton, sheet 113 of araiiined wax paper is held in the hand with one edge of the pa )er upon the heater 25 and almost instantly t e pack- 13 age is placed upon the edge of the parafined wax pa er lying upon the heater, then the parafline wax paper with the box superimpsed thereon is drawn `backwardly and.

with a rolling backward motion the paper is wrapped around the package, as shown in Figs. 9 and 10. The package is then drawn forward over the working board and onto the heater and drawn across-the heater with a sideways motion, which sealsA the parafiined wax paper completely around the box or carton.

Then the operator folds the paper against the ends of the box, as shown in Fig. 12, and places the package upon the board 74 and` presses it backwardly between the yielding heating plates 56 and 57 of the

heaters

23 and 22 and the'box .remains in thisv osition long enough to melt the wax'upon t e various overlapping portions vat theends of the package. If' the heat is high enough the package may move right `through the ver-` tical heaters.

Then the packagey is moved backwardly between the lining 'p14 and springs 18 upon the cooling board 21 and the tension of the springs 18 willpress the folded ends tight enoughto form a good seal and as the work goes onvthe sealed packages will pass backwardly vupon the board 21 between the lates 14v and 15 and cool. The rear ends the plates l4ja'nd 15 may be' wider apart than the forwardends so that the stack of packages move backward easily.

It will thus ly manual and partly mechanical. As'shown in Fig. 8, one. end of the yparaliinv paper is slightly heated, and as shown inFig. 9, the package is gummed thereto. After rolling .the package so as ,to encase it inthe paper asshown in Fig. 10, the outsidel end is gummed by application tothe hot late 25 as shown in Fig. 11. The sides of t e package are then folded inward, as indicated in Fig. 12 and the complete package pressed through thehot plates 56 and 57, aszshown in Fig. 13, to seal the sides, and subsequently are pressed to the cooling ltable at the right hand end of Fig. 13. p

In working from the heater 25 to the

heaters

22 and 23 over the board 24 rubbing the sealed portions of thepackage over ^the board 24 andover the holes 84 and 85 will remove any lumps or surplusage ofyparaffin from the package.y

Thus I have produced a package wrapping and sealing device comprising a frame, means forming 'a flat hot'plate at-the forward end of the frame, a" working board Aname to this specification.

extending backwardly from the .hot late,

two hot plates back ofthe working be seen that I.have'inventedv a method of sealing packages which kis partard vertically and yieldingly mounted and facing each other, means for adjustingthe dis'- tance between the vertical hot lates, a 'cooling table extending backwar ly from the vertical hot plates and having sides adjustably mounted, and a series of bowed springs attached to the forward end of one side to press against the ends of a package as it passes to the cooling table.

In the specification and claims where I .partin from the spirit of my invention as claime I claim:

i 1. A package wrappingland sealing de- .vice comprising a frame, means forming -a l fiat hot plate at the forward end of the frame, al working board extending backwardly from the hot late, two hot plates- 'aback of the working oard vertically and yieldinglymounted and facing each other, means for adjusting the distance between the vertical hot lates, a cooling table extending backwar y fromthe verticalv hot plates and havingv sides adjustably mount.

ed, and a series of bowed springs attached to\ the forward end of one side .to press against the Vl-ends of a package as it passes to the cooling table.

2. A ackage sealingV device fcomprising a frame having a substantially continuous flat upper surface extending from the front to the rear end of the frame, having means forming a Hat hot plate at the forward end of the frame, a working board extending i backwardly from the hot plate, two vertical hot plates on the back of the working board facing each other, a ooling table extending backwardly from the vertical hot plates having vertical sides extending substantially parallel and a series of bowed springs attached to the forward end of one of the sides of theA cooling table to press against the ends of a package as it passes to the ysaid cooling table.

3. In a wrapping device, a frame, a hot plate at the forward end of the frame, said hot plate being constructed with boards extending crossways of the frame from a box like structure, lower and upper castings in 'the box, heating elements mounted in ythe castings, means to insulate the heating elements from the castings and a finished working plate'on top of the uppercasting.

lIn testimony whereo'I have signed my CHARLES w. H. BOLINGBROKE.