US1152786A

US1152786A - Process for affixing covering material to frames.

Info

Publication number: US1152786A
Application number: US80980113A
Authority: US
Inventors: Louis E Brown
Original assignee: Farrington Manufacturing Co
Current assignee: Farrington Manufacturing Co
Priority date: 1913-12-31
Filing date: 1913-12-31
Publication date: 1915-09-07
Anticipated expiration: 1932-09-07

Description

L. E. BROWN.

PROCESS FOR AFFIXING COVERING MATERIAL T0 FRAMES. APPLICATION FILED 050.31.1913.

1 152,?86 I Patented Sept. 7, 1915.

Witnesses. ifmtvgntor.

Wk LOUiS rcwn, A m zw YMWfiW llldl llllllh STATES PATENT @Fl llfihi.

LOUIS E. BROWN, BOX-BURY, MASSACHUSETTS, ASSIGNOR TO FABRINGTON MANU- FACTURING COMPANY, OF ROXBURY, MASSACHUSETTS, A CORPORATION OF MAINE.

PROCESS FOR AFFIXING COVERING MATERIAL TO FRAMES.

Specification of Letters Patent.

Paten-tedSept. '7 1915.

Application. filed December 31, 1913. Serial No. SUI-801.

To all whom, it may concern Be it known that I, LOUIS E. BROWN, a citizen of the United States, residing at Roxbury, county of Suffolk, State of Massachusetts, have invented an Improvement in Processes for Afiixlng Covering Material to afiixing covering material suc'lr as satimvel Vet or'other textile material ormaterial of a similar characterto frames of various char acter such for example asthe cardboard frames of the satin pufis used in jewelry boxes;

The invention has for an object to provide a process of this characterwhi'ch may be conveniently employed in the manufacture of certain auxiliary parts" of jewelry boxes such as pufls, pads and similar parts.

Theinvention provides a process by which the covering material is drawn to the desired shape and while held in this shape is cemented to the frame thus securing the thorough and permanent adherence of the covering material thereto, while in the exact shape desired.

The invention also provides aprocess. in which the adhesive agent may be handled and applied preferably to the frame in such a manner as notto injureor mar in any way the covering material; 7

The invention also provides a process in which the adhesive is handled and applied without danger to the operator and without spreading beyond its natural field of application so as tog-um up'or adhere to the. article being manufacturedat other pointsthan those desired or to the machines or t'ools'employed in the manufacture of the article.

This process is particularly useful in the manufacture of such articles as jewelry boxes in which the appearance of the finished article is of prime importance and in which materials'of considerable value are employed.

The nature and object of the invention will appear more fully fromthe accompanying specification and drawing.

Referring to the drawing in which I have illustrated, somewhat diagrammatically, one form of machine suitable for applying covering material to a frame to form a satinpuff in accordance with my invention Figure 1 is a sectional view showing the dies with the frame and covering material in position, and Fig. 2 is a perspective view of the finished satin pufi.

In accordance with my invention a coat ing of liquid shellac is applied to one of the elements to be connected together and the shellac is then allowed to'harden. When the shellac is dry the element may be freely handled without danger of thei'shellac spreading or soiling the article, the hands, or toolsused. The elements are then assembled, shaped to the desired form and firmly pressed together especially at such points as it is desired that the elements-should be secured together, heat being simultaneously applied to the contacting surfaces to soften the shellac. The elements are thus securely cemented together while held in shaped condition a perfectly formed and permanently shaped article therefore resulting.

The process of my invention is preferably carried out by means of instrumentalities such as heated dies and accordingly I have illustrated herein one form of machine for so practising my invention and for the purpose of illustrating my invention shall describe'the method of making satin puffs.

A frameof cardboard or similar material is provided on its outer surface with a coating ofshellac. This may conveniently be applied to the cardboard before it is cut to form frames, since the shellac does not in any manner interfere with the working of the material. I prefer to apply the shellac dissolved in a'volatile solvent which is then allowed" to evaporate. The prepared frame is placed upon one of a pair of dies and a piece of covering material such as satinv is placed over this die. The other die which is heated is then depressed, drawing the covering material to shape over the lower die and frame, simultaneously pressing it firmly into'contact with the she'llacked surface of the frame. As the heated upper die presses the fabric down upon the lower die, it stretches the fabric and, by reason of the heating of the fabric, changes its condition destroying the elasticity of its fibers so that when its margin is affixed to the frame it maintains the form of the die over which it is placed. lhe heat of the die softens the shellac and, therefore, the covering material is firmly affixed to the frame by the same operation that draws it to shape over the die and frame. 7

Referring to the drawings in detail, the machine illustrated comprises a support 1, an expansible lower die 2, a vertically movable upper die 3 and a yieldable tensioning member 4. i

The lower die is of a shape to receive the frame 5 and to presenta mold over which the covering material 6 is shaped. The upper die is of a shape and size to fit closely around the frame and is arranged to descend,.engaging the edge of the covering material 6 lying on the yieldable tensioning member 4 and to draw said covering mate- I rial down over the lower die and press the edge thereof firmly against the outer face of the frame. The upper die is heated, a gas supply pipe 7 being provided for this purpose wherefore the shellac .on the frame is softened and thus causes the covering material to be. securely cemented to the frame while it is still held in shape between the dies.

The lower die is made in two parts, the fixed part 8 being rigidly secured to the base of the support, and the movable part 9 being so mounted as to permit a limited movement toward and from the fixedpart as by means of screw bolts 10 extending through slots 11 in the base. A spring 12 mounted in a slot in the movable part is connected to move said movable part toward thefi'xed part and a foot lever 13 connected to a bell crank lever 14 by a link 15 serves to move the movable part from thefixed part against the action of the spring 12 thu expanding the die. A shoulder '16 extends around the edge of this die and serves to determine the position of the frame 5 when placed thereon.

The upper die is mounted to slide vertically in the support 1 and an operating lever 17 is provided to depress it. This die is heated as by means of gas jets 18 connected to the gas supply pipe 7.

The yieldable member is illustrated as a i plate removably mounted on two yieldable posts 19. Springs 20 pressing against collars21 tend to hold the plate in elevated position. The tension of these springs is suflicient to cause the edge of the material to be held quite firmly between the plate 4 and the descending upper die so that the material may be drawn smoothly to shape over the lower die. A guide 22 is provided on the plate toenable the operator to properly position the covering material in the machine.

In operation, the frame is placed on the lower die and the die expanded. Covering material is placed on the yieldable tension member. The plate 4 may conveniently be removed to give better access to the lower die for positioning the frame and then replaced. The upper die is then depressed whereupon the covering material is drawn to shape between the dies and afiixed to the frame, a slight dwell being sufficient to permit the heat of the upper dieto soften the shellac. The upper die may then be raised f and the finished article removed leaving the covering material to one type of frame but" the invention is not limited to such use.

It will be obvious that my process may be employed in a variety of ways for applying covering material to frames of various kinds, and is especially advantageous for applying covering material to frames or forms in which accurate shaping of the parts is desired. 1 s 1 Having fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. The process of aflixing fabric to a-frame which comprises coating one of the elements with an adhesive substance neutral when cold, shapin the fabric by the application of heat and simultaneously pressing the edges of the fabric to the frame and applying heat thereto which causes the fabric to assume a desired contour and its ends and sides to be secured to the frame.

2. The process of aflixing fabric to a frame which comprises coating the frame with an adhesive substance neutral when cold, shaping the fabric by the application of heat and simultaneously pressing the edges of the fabric tothe coated frame and applying heat thereto which causes the fabric to assume a desired contour and its ends and sides to be secured to the frame.

3. The process'of forming pufis for boxes which comprises forming a frame of narrow strips, securing the sides and ends of a piece of fabric of greater area than the area of the frame to the sides thereof and simulplailigously shaping the piece of fabric thus 4:- The process of forming puffs for boxes which comprises coating a rim with an adhesive substance which is neutral when cold, placing the rim around a die having a portlon prO ectmg through the rim, stretching a piece of fabric upon said die and pressing o the first-mentioned die.

6. The process of forming pufls for boxes which comprises coating the outer sides of a box-frame with an adhesive substance neutral when cold, placing the frame around a die having a portion projecting through the frame, pressing a heated hollow complementary die upon said box-frame and die which causes the fabric simultaneously to adhere to the box-frame and to be shaped in the form of the projecting dieportion.

7. A process of making pufis for boxes which comprises coating a rim with an ad- 15 hesi've substance which is neutral when cold, placing the rim around a convexed die, stretching a piece of fabric symmetrically over the die and affixing the same to the rim by a complementary heated die which engages only the margin of the fabric.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

LOUIS E. BROWN.

Witnesses:

H. J. BARRINGTON, E. JORDAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, I). 0.