US1620884A - Method of repairing torn fabric - Google Patents

Description

March 15 1927.

. e. GALLOPIN METHOD OF REPAIRING T0 RN FABR I 0 Filed A112. 13, 1924 INVENTOR' 6 A v a 5 f ATTORNEYS drawing reinstated without. pairing the translucency o f it may sat si'actorily be used fol-the purpose Patented Mar. 15, 1927. v

. mees'r ensrevo eALLorIN, or CHICAGO, rrimnorsnssmnon rowns'rn nn nLnornIc coir-- PANY, INCORPORATED, or' nnw yonx, 1\T.-Y.,v A coaronn'rron or new YORK.

ivrnriron or REPAIRING roanraenrc.

Application filed August 13,. 1924. Serial are. "731,858..

This invention relates to a method of repairing torn fabric and, more.particularly,

to a method of rcpairing'tracing cloth upon which drawings, such. as factory working drawings. are commonly made.

The invention also contemplates a novel element em ployed in carryijng'out: the method. 5 An object otthe invention is to provide such a method whereby torn, mutilated or defaced material having a drawing: thereonmay be repaired and the injured part 'ot the substantially imthe sheet 50- that of obtaining prints therefrom. p

"Ainother object consists 111-. obtaining the first named object in a very simple and expeditious manner.

A further object consists in providing a novel repair element for the purpose stated. A further ob ect consists in providing certain improvements; in the material, construction and steps followedin carrying out. the

metho.d" whereby the above; named and other.

objects may effectively be attained.

A practical embodiment of the invention is represented inpthe accompanyingdrawinns, in which- Fig- 1 represents a: detail, practically diagrammati'c, view showing a portion of draw-' ing'fabric with a performed as-a step in the method being represented in dot and dashv lines.

Fig. 2' represents a plan view of an inset employed in carrying out the. method;

Fig. 3 represents a view similar to Fig- 1 but showing the sheetrepaire d; Fig. 4 represents an enlarged section taken inthe plane of the line IV-IV of Fig. 3,

' running a; sharp edge around. tollowingffor in the plane or the line VI-VI of Fig. 5,

looking in the direction of the arrows;

As is well I known, mechanical working drawings in general are commonly made upon a form of brown paper and then traced onto oiled linen sheets which are used for a permanentrecord. From these linen sheets. blue prints are made from time to time for use by p ttern makers, machinists, et cetera.

These permanent tracings are a very valuable part of factory equipment and it is imrequires tear therein; an operation portant to keep them in good-condition[and fit for use in-making accurate prints for: the manufacturing operations: l t "frequently happens that the said: trac inns become torn, mutilated or defaced; and such injury quite frequently tak-esthe term otan actual tearing out of a portion: o t-the tracing cloth. Such injury very frequently the retracing ot' the entire sheet (ante-anew sheet ottracing Clot-h! so that: facilities for producing, prints may be maini tained. This last step entails delay and subs sta'ntizelexpense, and invention .is v de signed, to obviate the same. I

carrying out invention, a small piece of the: same-kind placedpunder the. torn portion and a linecut around the torn portion so as to cut completely through the tracing; cloth containingthe drawing and the extra piece. The latter ot tracing cloth is s is their fitted in the-opening in the tracing; I cloth drawing and secured in place by over- 4,. and it will be noted that it has eliminated parts of'the figure 210i the design drawn thereon, in addition to: mutilating the sheet 1..

With atraeing cloth drawingin this; con-: dition. the operator jlaysa similar piece-of tracing-cloth over the torn portion and cuts out the mutilated part of the sheet 1. by.

example, the dot and; dash.- line '5. ,This up piece that exactly fits the. cut out portion of the tracing. I v j s This makes an inset. .which is represented. in Fig. 2 and marked 6. This inset, it will be understood, is composed of the same ma terial as the sheet 1 and it is now placed in the cut out portion in the, sheet 1 so as to eration also: cuts out a section from the extraby the saw tooth line clearly shown in Figs.

1, 2 and 3.

With the inset 6 in place in the sheet 1, the operator makes an application of some translucent adhesive, such, for example, as collodion, to the back ofthe insert 6 and to the portions. of the back of the pressed into firm adherence with the sheet 1 and inset 6 by suitable manual or mechanical pressure in any approved manner.

Finally, the operator re-draws, on the inset, the cut out portion of the drawing.

The mutilated sheet and its torn design have now been completely repaired and the sheet is fit for permanent record and for use in the production'of prints therefrom,

it being clear that the translucent nature of the patch 7 and adhesive'will permit accurate and legible reproduction of the drawing on the prints.

Instead of securing the inset in place, before redrawing the cut out part of the drawing, the latter may be traced onto the inset before the cutting operation.

If desired, the patch 7 may have a coating of translucent glue applied thereto, after the manner of an ordinary postage stamp, and it then maybe fixed to the inset 6 and sheet 1 by moistening the glue and applying the patch in an obvious manner.

Such a-form of patch is represented in Figs. 5 and 6,'in which the fabric of the patch is represented by 8 and the glue coating thereon by 9. Such a patching material might be manufactured in ribbons or tape formation and dispensed in a roll or in any other suitable package, and in various widths. It is plain that, from such a roll or package, a suitable amount of the desired width'could be cut oil and applied to the inset 6 and sheet 1,1as' just explained. I

believe this form of repair material for this purpose to be novel, and it constitutes a feature of my invention. I

It will be understood that various changes may be resorted to in the material, form,

construction and steps followed without departing from the spirit and scope of my 111- vention, and hence, I do not intend to be limited to the details herein ShOWVlI and be included in drawing and securing said piece in position by applying to the ba'ckof said piece and said sheet a'patch of translucent-fabric with the intermediation of translucent adhesive, thereby leaving the front of the repaired sheet as a substantially smooth surface upon which may be redrawn cut out portions of the drawing, v

2. A'method of repairing mutilated drawing sheets of translucent material which includes the following steps: removing a portion of the sheetincluding the mutilated portion of the drawing, preparing a piece of translucent material having an outline iden tical with that of the removed portion of the drawing sheet, inserting the prepared piece of translucent material inplace of such removed portion, and securing said piece in position by'fixedly applying to the back of said piece and said sheet a patch of translucent material to produce a substantially uniformly translucent sheet having a substantially smooth-front surface upon which may be redrawn cut out portions of the drawing.

In testimony, 'thatI claim the foregoing as my invention, I have signed my name this 29th day of July, 192$. I

' GUSTAVO GALLOPIN.

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