US857465A - Seam for uniting materials. - Google Patents

Description

PATENTED JUNE-.18, 190'?.

APPLICATION FILED 0012-2?, 1905.

UNrTEn sTATns PATENT OFFICE.

JOHN-o. rvoRY, or NEWTON, New HAinsHmE, AssieNoR- To DANIEL n 'ronrrsfrinr, TRUSTEE, or BOSTON, MASSACHUSETTS.

SEAM FR UNTlNG MATERIALS.

To @ZZ whom Wawy concern:

Be it known that I, JOHN C. IVORY, of N ew` very e'xible connection or seam beta/een the parts, to reduce the amount, as well as the cost of the'material used in forming the seam, and; to produce a level surface on the sole when hn'ished The `invention consists in the use of two.l threads, one a continuous thread or cord having bights or loops Jformed at intervals in its length which bights or loops are placed or drawn through a series of perforations in the arts to be united thereby, one bight or loop or each perforation, combined with another and preferably cheaper thread cut into seetions, each section forming a nd or toggle inser-ted through each bight or loop of the oontinuousthread on the opposite side oi the maf terial or the between substance, to that ofthe .continuous thread, said inserted iids or toggles being independent and detached from each other between each two bights or loops on the'continuou's thread, thus forming an independent locking member for each bight or loop.

The invention is' carried out substantially as illustrated on the accompanying drawing,

which forms an essential par/t of this speciiilcation, and whereon like characters of reference refer to like parts whereverthey occur on the different parts of the drawing.

. 0n the drawing: lvFigure l represents aseoH tional view of twovpieces which are to be united, showing the same connected 'bymyimproved seam whena singleY cord isused as ther locking member. Fig. 2 represents a similar view toythat shownin Fig. l, but

showingmy improved seam when 4a-.loop'of thread or cord is used asv/a locking means. Fig. 3 represents a-detail'sectionof theseamused as a. connection vbetween the upperl and 'thesole of a turn-shoe. ,'Fig. 4Irepresents a sirrular...detail section, my improved Specification of Letters Patent. Application and october 27,1905. serai No.l 284,659.

Patented .Tune 18, 190.7'.

seam .used to connect the upper and welt to the inner sole of a Welt-shoe. f Fig. 5 represents a detail plan view of a portion of the sole of a vboot or shoe in which my improved seam is used in forming the fair-seam'to unite the outer and the inner soles, or to unite the outer sole to the Welt of a weltboot or shoe. F ig. 6 represents a sectional sideelevation of 'that portion of la boot or shoe shown inFig./5.

in forming the seamsl which connect the upper to the soles of boots or shoes, or the outer soles to the inner soles, -or to the welt, and more Aespecially in connecting the uppers to the soles of turn-shoes'it is very desirable that the seam should be made as flexible as is possible, so as so'add to the iiexibility of the boot or shoe and to the comfort and ease of the wearer. It is also desirable that `the amount of the more expensive threads or cords used in making the seam should be reduced as much as possible by the introduction of a less expensive but equally serviceable material in the parts of the seam which will admit of such an introduction, as a suband thus keep the surface of the sole as level as possible'ai'ter theseam has been covered by the finishing lip. YIt isl the object of my present invention to produce a very flexible seam, and also to reduce the' amount of the Jrine uavlity or expensive'thread used, by the use o locking members which are made from less expensive` material and to so arrange the locking members or ids, as to occupy as little space as possible. within the channel made to retain such locking members.'

The seam consists of a continuous thread 1, which is usually a Wax-thread or other strong and expensive thread. Y thread 1s formed. into a series of bights or loops 2, which are drawn, inserted, or other- ;Wise placed Within a. series of perforations 3, rvmade in the 'pieces vor layers 4 and 5 ofthe f This continuous IOO material to be united bythe seam and so that y ktheen'ds of'thebights or loops extend through said perorations and 'proiilct on the: opposite side-thereof'to thaton `thread is:l The intermediate portions of the .continuous thread, -which -is nc'tweenv Kthe bights or loops thereof, efst against the sur-l ch the continuous tace of the layerg of the material being united by the seam. On the opposite' side .of the material, resting-against thesuriace of the layer 4 thereof, and inserted Within each rojecting end oi the bights or loops 2, is a s ort cross orlocking member which forms a id or toggle and which may consist of a single cord or thread 7 ofV cheaperv material than the Vthread 1, and substantially as shown in Fig. 1; or said loc members may onsist--of a bigjht or loop 8 o such cheaper material and su stantiallyv as shown in Fig. 2. use a cheap gradcgcf cord ortwine informing these locking members, as the same is suiiiciently, bulky and flexible to perform the function of such .locking members.

or loops 2, prevent such bi hts or loops fro l111g `drawn backward ough 'the perforations in the material, when the thread 1 of 'the seam is being drawn tight to hold the parts firmly in` their proper places: 1

Each of the .lockingl members is detached. and inde endentoft bershan therefore does notrcause any rigid.- ity in the seam, or in t e parts which are .united by the seam, but eaves the parts as well as the seam perfectly free to move, as the locking members are free to move with-the surface of the part .of thematerial against which the locking members rest. l l

As the tensile' strength of the locking mem` bers is notnecessary to enable them to, perand as theirbulk is the it will be seen that the these locking members form their function, only thine' necessar material from whic are formed may be any kind of cheap cord or twine, such as 'utetwine, while the thread 1, which retains t e layers or parts of the materi `l in their roper united positions by its tensile strengt must be of some stronger and 'more expensive material, .such as a waxed linen or other thread. y l `My im'proved seam is designed for use 1n the Manufacture of Vboots and shoes, and

more especially in uniting the `solesa'nd upers. V1t maybeused informing the seam etweenthe u perQand the sole 10 of a` -tlirxi-slioeg as-shown in Fi 3, or it may be used as the seam between t e upper 11, inner sole 12, and the Welt 13, of a welt-shoe, as shown in Fig. 4, or it may form the fairstitch seam 14, which connects the outer sole h5 to the Welt 16 and upper `17 of a welt-boot or shoe, as shown in Fi f'. 6 and in either lcase the locking member or Klie`"lorlgitudinally within the channe formed on the artsto be united by the seam, and'in line wit the seam formed in said channel so as to occu as little space as is possible therein. stitch seam, the thread may be'drawn suiii-` ciently tight to cause the locking members to be drawn into the perforati f the bightsfor loops are located,I and to such I preierfto This series of lds orltoggles Within the `be5 e other locking meme' d is s o arran ed as to ven the seam forms the fair-' ns withinwhich an extent as to cause them to double uponv themselves and to become U-shaped, as shown in Fig. 46. This 'is more partlcularly the case when the locking members are made from less bulky.. and very flexible material, such as a small soft twine or cord. After the seam has been formed, it is covered by a lip as is usual insuch cases, and as zthe iids are arranged so asv to occupy as little space as possible within the channel formed to receive ,the seam,.the surfacewhich is exposed after the seam has been covered by the lip will remain substantially level. l

I am aware that it is not new to unite material by aseam formed froma continuous thread having loops [therein which lpass throu l1 perforations in vthe material being unite combined with independent locking"- membersor ds inserted within Vsaid loops, and therefore I do not claimf such a construct tion broadly, but I believe that I am the first one toform a seam oi' this class, in *which two threads are used, one being severed so as to' form anindependent locking member or d foreach loop on' a continuous thread, which locking' members or iicls will be, arranged so as to extend longitndinallyin line with the series (of loops on the continuousthread, Wherebya veryneat and exible seam is produced; Which Will.v occupy very littlespace 'withini the channel formed upon the surface of -thematerial for the reception of the seam, and which seam can therefore becovered by the flnishin lip of the channel leaving substantially a evel surface on thematerial with the seam completely covered.

Having thus fully described the' nature, construction, and the operation of my invention, I` Wish lto secure by Letters Patent andy to claim: -1

A seam consistin of pieces `of over-lapped, erforated materia one piece of material havinga channel and a lip over hanging the, channel, a continuous thread having a series of loops formed. throughout its length and passed through alining perforations of the pieces of material, and -a locking member disposed between the bi ht portion of each loop EOS and the'` outer face o the channeled piece ofy material with the bight ends vof the loops formed Jfor disposition in the? channel beneath saidlip which overlaps the channel,

eachlocking memberbeing arranged longitud inally in line'with the series of perorations oi the material and with the portions of the 'continuous thread intermediate the loops of the. latter, the locking `members being spaced and independent of one another.

In testimony whereof I have valixed my signature, inpresence of two witnesses. l 1

'p JOHN c. ivoRY. VVitnes'ses: l

"J'oHN JIRYAN, V 'J1-E. KEMPSTE'B..

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