US2376832A - Material applying apparatus - Google Patents

Description

FIG. I

FIG. 2

M. L. SVIKHART 2,376,832

MATERIAL APPLYING APPARATUS May 22, 1945.

Filed Dec. 5, 1942 HVVEWITOR M. L. SW/(HART es mm A r-ro/a/u'r the tank.

Patented May 22, 1945 2,376,832 I MATERIAL'APPLYING armnaros Miles L. Svikhart, Garden City Park, N. Y., as-

signor to Western Electric Company, Incorporated, New York, N. Y., a corporation of New.

York

Application December 5, 1942, Serial No. 467,962

7 Claims.

This invention relates to material applying apparatus, and more particularly to apparatus for applying glue to lock box joints in wooden parts for assembly. I i

In the assembly of wooden parts through the gluing of their joints, the speed of the assembly of such parts and the strength of their joints depend largely upon the speed and efficiency of the application of glue at the proper locations.

An object of the invention is to provide a material applying apparatus, and more particularly a simple, efficient and highly practical apparatus 7 for applying material to the walls of apertures in sidered inconjunction with the accompanying drawing, wherein Fig. 1 is a top plan view of the apparatus, portions thereof being broken away;

Fig. 2 is an enlargedfragmentary sectional view taken along the line 22 of Fig. 1;

Fig, 3 is a fragmentary detail View taken substantially along the line 3-3 of Fig. 1; g

Fig. 4 is an enlarged fragmentary top plan view of a portion of the apparatus illustrating two of the material applying elements, and I Fig. 5 is a fragmentary sectional view taken along the line 55 of Fig. 4.

Referring now to the drawing, attention is first directed to Figs. 1 and 2, which illustrate a sup port Ill, which in the present instance is mounted upon a bench II, the latter being provided with an aperture l2 therein. The support in may be of any size depending upon the size of article [4 which is to be. treated. A pairof brackets [5, se-

- the sides of the support to receive and support a tank I If The tank 11 extends the full width of'the support l and is substantially semi-cylindrical in cross-section. The inner portion of the tank is formed into a lip l8 which lies upon angular portions of the brackets l to catch any excess material 20 during the operation of the apparatus and cause this excess material to drain back into It will now be observed that the purpose of the aperture I2 is to receive the lower portions of the brackets 15 and the tank IT. The material in the present instance is a liquid glue of the type desired to join wooden articles or parts. Consid ering for the moment the article [4, it will be observed that the forward edge thereof is provided with a plurality of apertures or notches 2| which are of the type used in forming lock box joints. To secure two similar parts or articles together merely by gluing of the projections of each part in the notches of the other, his 1121- portant'that all surfaces of the notches orapertures be completely covered with glue. To accomplish' this purpose material or glue applying elements, indicated generally at 23, are employed. These elements are identical in structureand a description of one will apply to them all.

Consider, for example, the element shown in Fig. 2. This element in the present embodiment is formed of wood, it being understood, however, that it could be formed of any desired material. The width of the element, as illustrated in Fig. 4, is slightly less than the width of the apertures 2|, allowing a sufiicient clearance for the passage of the element into the aperture with whichit is registered and the passage of the glue on the element therewith. This clearance is sufficiently small, however, to cause wiping of the glue or material. onto the walls of. the aperture during move& ment of the element into and out of the aperture. This same clearance exists between the end of the element and the inner wall of the aperture. The element, however, is beveled, at 25, at its forward or leading edge, to allow entering of this portion of the element into'the aperture through an arcuatemovement of the element and to position the major portion of the'forward surface of the element adjacent the inner wall of the aperture as illustrated in Fig. 5. The forward portion of the element is also beveled at each side, as indi: cated at 26, to further assist in the entering of the element into the aperture. In the forward portion of the element is disposed a pocket 21, to receive an additional amount of material to. be

carried into the aperture, outlets 28 being providedto direct this quantity of material. to the or between the element tures. The plate 30 performs twofunctions, its, main function beingto serve as a stop for the movement of the elements and to locate the forthe element '23 is provided with a slot 32 and an aperture 33, the latter being adapted to receive a shaft 34 while the former provides the element at this portion into two halves which may. be drawn together through the aid of a bolt 35 for the rigid mounting of the element upon the shaft.

In the present embodiment there are eighteen elements of the type described, these elements being mounted at spaced positions upon the shaft 34 so that they will respectively register with the apertures 2! in the article l4. The shaft 34 is supported in suitable bearings of brackets 40., the latter being secured, as at 4!, to the sides of the support ID. A suitable crank 42 is mounted upon one end of the shaft 34, which has a connecting portion 43 adapted to hold the shaft against'movement in one direction, a collar 44 mounted upon the opposite end of the shaft. holding the shaft against movement in the opposite direction. 1

Attention at this time is directed to locating elements 45, three of which are employed in the presentembodiment, these elements being identi-- cal in structure. By viewing Fig. 2, it will be noted that the elements are mounted upon selected bolts 35 of certain of the elements 23, assisted by the aid of screws 45. The elements exitend at right angles from their respective elej ments. 23"and have their forward ends curved as at 41, to provide rounded ends for the elements to engage the inner walls of their respective apertures 2L locating elements 45 are beveled, as at 48, to assure entering of the locating elements in their respective 'aperatures and lateral adjustment of the article if such is found necessary.

There is one feature of the tank which has not been previously'described, reference being made to a' 'forward'cover portion 50 which has a down;- wardly bent lip 5|, this portion extending'over a'given area-tank and for the full length thereof toeli'niina'te the possibility of splashing any of the material 20 out of the tank, to serve as-a stop when abutted by the plate 30 of the elements in one direction and to serve as a stop when; adapted by the locating elements 45 during their movement in the opposite direction.

- Upon considering the operation of the apparatus, let it beassumed that the tank I! is sup.- plied with a desired material 20 to a given level, as illustrated, and that the elements 23 and 45 are in the positions shown in Fig. 2. When in these positions an article I4 may be placed upon the support In and moved toward the elements 45 uritilstopped bythese elements, with the ends ofthe elements positioned in given apertures 2| of the article. In this manner the article is accuratelylocated to receive the materialapplyjing'elements. If, during the movement of the article into position, it should not be in direct alignment with the preferred position,- the locat- The sides of the leading ends of the 1 41 of the locating elements give the article adesired longitudinal location with respect to the material applying elements 23. It is not found necessary to provide any clamping orv holding means for the article once it is located. It is moved into position by one hand of the operator and is advisably held in this position in the same manner during the rotation of the shaft 34 through the aid of the crank or handle 42, to

bring the elements 23 from the position shown in Fig. 2 to the position shown in Figs. 4-. and 5. During this. movement of the shaft and the elements, the forward portions of all of the elements'will transfer on theirsurfaces given quantities of the material to further transfer these a quantities to thewalls of their respective apertures 2 I The previously described clearances between the elements and the walls of the apertures will be sufiicient for the passage of given quantities of the material into the aperturesthe pockets 21 carrying additional quantities of the.

material which will be allowed to pass through their outlets 28 at the upper portions of the walls of the apertures. Thus it is apparent that during the upward swing of an element into its aperture, all portions of walls of'the aperture will 7 be covered with the material. 'However, due to the fact that the elements enter the bottomsof th apertures, there may be more material'a'pplied there than'at the tops. 'Themovement of 7 out of the aperture, thus providing a double aD- plying means, first, the application of the ma terialon the outer walls of the element 23, and second, the application of the material brought in the pocket to the applying position and then applied in a reverse order to the walls'of the aperture. This assures a'clearer coveringof all portions of the walls of the aperture." I

Although'specific improvements of the invention have been shown and'described, it willbe understood that they are, but illustrative and that various modifications may be made therein with out departing from the scope andspirit of this invention as defined by the appended claims,

What is claimed is:

l. A material applyingapparatus comprising 3 a support for an article having apertures therein, a tank for a supply of materiaL'material applying elements having contours adapted to substantially fill the apertures, means to cause the elements toremove quantities of the material from the supply and cover the walls'o fthe apertures therewithpand means receivable in certain of the apertures to locate the article'relative to the elements.

ing elements 45, through their bevelled surfaces 48. will effect a shifting of the article to bring it into the desired position. Thus through the sides 2. A material handling apparatus comprising a support for an article having a notch therein, a tank for a supply of material, an element hav ing an end portion with walls substantially con forming to respective walls of the notch, a pivotal support for the element, 'means'to move the respective walls of the notch, and means mounted to be supported by and be moved with the'piv'otal support to enter the notch to relative to the element. s

3. -A material handling apparatus comprising a support for an article having a notch therein, a tank for a supply of material, an element having an end portion with Walls substantially conforming to respective walls of the notch, a pivotal support for the element, means to move the pivotal support to move the element and cause the walls of the end portion to transport quantities locate the article of the material from the supply to their respective-walls of the notch, and means mounted to -be supported by the pivotal support and receivable in the notch to locate the article relative to the element.

4. A material handling apparatus comprising a support for an article having a notch therein,

' port the elements for rotation about a given axis a tank for a supply of material, an element hav- 7 ing an end portion with walls substantially conforming to respective Walls of the notch, a pivotal support for the element, means to move the pivotal support to move the element and cause the walls of the end portion to transport quantities of the material from the supply to their respective walls of the notch, and a member mounted to be supported and moved by the pivotal support so that an end thereof is receivable in the notch when the end portion of the element is in the supply to locate'the article relative to the element.

5. A material handling apparatus comprising a support for an article having a notch therein, a tank for a supply of material, an element having an end portion with walls substantially conforming to respective walls of the notch, a pivotal support for the element, means to move the pivotal support to move the element and cause the walls of the end portion to transport quantities of the material from the supply to their respective walls of the notch, and a member carfor movement of like ends of the elements from the supply to move quantities of the material therefrom through arcuate paths into their respective apertures to cover the walls thereof with the material, and a member secured at the ends of the elements to engage the article and stop movement of the said ends through the apertures.

7. A material handling. apparatus comprising a support for an article having spaced apertures therein, a tank. for a supply of material, material applying elements having contours adapted to substantially fill the apertures, means to support the elements forrotation about a given axis for movement of like ends of the elements from the supply to move quantities of the material therefrom through arcuate paths into their respective apertures to cover the walls thereof with the material, and a member mounted to be supported by the supporting means and having its outer end spaced from the said ends of the ele-' ments and positioned to enter one of the apertures when the ends of the element are in the supply to locate the article relative to the elev

Images