US1569646A

US1569646A - Cloth-inspecting machine

Info

Publication number: US1569646A
Application number: US668510A
Authority: US
Inventors: Norman T Thomas
Original assignee: NASHUA Manufacturing Co
Current assignee: NASHUA MANUFACTURING Co
Priority date: 1923-10-15
Filing date: 1923-10-15
Publication date: 1926-01-12
Anticipated expiration: 1943-01-12

Description

Jam 112 9 192% N. T. THOMAS CLD'IH INSPECTING MACHINE s Shets-$heet 1 Filed Oqt. 15, 1923 Jan. 12 .4 1926.

N. T. THQMAS CLOTH INSPEGTING mourns Filed Oct. 15, 1923 3 Sheets-Sheet 2 m n M n a 1 il xliiiiFL ll| llllllL N. T. THOMAS CLOTH msrnc'rme momma Filed 001:. 15, 1923 3 Sheets-Sheet 3 //VVE/VTUR.' 77 A 252W,

Patented Jan. 12, 1926.

- UNITED: STA-res HAMPSHIRE. I

eArsNiT osrlca. j

NORMAN '1. THOMAS; oii NASHUA, new HAMPSHIRE, Assienon To NASVHUA MANU- I V FACTURING COMPANY, OF NASI'IUAj NEW HAMISHIBE,

VCLOTI-I-IVNSPECTVING MACHINE.

Appl'ication filed October 15, 1923. Serial 1T0. 668,510. r

7 '0 all whom it may concern:

Be it known that I, NORMAN T. THOMAS,

a citizen of the United States,residing at Nashua, in the county of Hillsborough and State of New Hampshire, have invented certainnew and useful Improvements inOloth- Inspecting Machines, of Which the following is a specification.

After the manufacturing operations on cloth have been substantially completed,vit

is customary to inspect the fabric for flaws and imperfections. The presentinvention relates to apparatus used in performing this inspecting operation, and it hasfor its chief object to improve such apparatus with a view especially to improving the accuracy 'of inspection, reducing' the labor nvolved, and simplifylng the introduction of a new..

web of cloth into the apparatus in readi ness for the inspecting operation.

the forms of cloth" inspection apparatus now in common use, the operation of initially threading in a new web of cloth in readiness for inspection is verydifiicult. It is the custom,therefore, to perform this threading-in operation by fastening" the trailing end of the Web which is just running out to the end of. the" new web, and

I appended claims thus use the motion" of the web' already the apparatus to draw in the new webl The fact, h owever, that the introduction of the web, unless performed in this particularmanner, is very difficult; "causes an 'inspec tortov watch the roll of cloth from which' the web is being drawn verycarefully asthe end is approached to make sure'th at the end'will'not run out before shecan piece'on the end of a new web. "This takes her attention from the clOthQwith the'result that the inspection. t becomes lnaoouratez The An especially importantgfeature of the invention resides in a" novel arrangementfor supporting websiof cloth in readiness for delivery to the 'm-achine ;and in the ar-' rangement for effecting 'such delivery.

The nature of the invention will be readi; ly understood fromthe following descrip' tion when readin connection with 'the-accolnpanying drawings, and the novel fea-' tures will be particularly pointedout in the Referring now to thedrawings,

Figure 1 is a perspective view'of. part of: a cloth lnspeictlng apparatus constructed in accordance with this invention;

Fig: 2 is a plan view partly in cross seca part of the apparatus; and 7 Fig. 4 1s a diagrammatic View of the driving roll and adjacent parts.

aoonroaa'rron or new The apparatus shown-comprises an inspeo,

tion stand which includes frame pieces 2 and 3 and an inclined board 4 supported by said frame pieces. A web of c'lothO to he i inspected in unwound from a supply roll t) which is supported in a cradle 6 mounted immediately below. theboard 4. This Web of clothpasses directly from the supply .roll 5 to a guide roll 7 i at the lower edge of the boards, thence over the board and between a driving roll 8 and a weighting roll' 9 to a guide roll 10, Fig. 3, The web-is rolled up again at 12 on the usual tube or pipe core which rotates on a shell roll 14.

The driving mechanism for the rolls 8' and 14 may be exactly like that employed in the cloth inspecting machines at present in common "use.

directly to. some convenient source is-"indicated at 16 in Fig.4, is splinedto the rollTshaft-and is slidable to connect or dis-j.

connect'the shaft with the pulley, this clutch being under the control of'a treadle 17 (Figs.

mally out, or to disconnect it from the pulley, so that the inspector must hold the treadle 17 depressed in order-to keep the cloth feeding over the stand, As soon as The shaft of the roll 8 carries a loose pulley 15','Fig.' 4, which is belted fof powen 1 A} clutch, one member of which the treadle'is' released, the rotation of the roll 8 is stopped, and'consequently the cloth feeding movement is stopped- Another mechanism which need not be described here, is provided to drive the roll 8 in a reverse direction'toe ffect aba'ckward feed of the cloth, this mechanism being un- "der the control of the treadle land 2). .7 r q r 'The shaft of the shell-roll 14: carries a pulley l9whioh is driven by a belt 20 from I tread le 17] push the 21 fast on the sha ft of the" near the front of the platform. Two rails 27-27 connected at their ends by pieces '2828 are mounted to slide l st underthe top ot the platform, therails being support-' ed on strips, one otwhieh is shoyyn at;29 (Fin 1), so thatthey n ay be moved torwardintothe dotr l line position sho-wn in Fig; with the front cross piece28 resting; on the topn'iostroll ot the cradle 6. In. this position they bridge the space between the platform and the cradle sothat itis a very easvniatter tor the inspector then to ront roll 525 over thef stop 26, after which it will roll by gravity on therails 27 37: into the cradle 6. hen this transfer oii'fidelivery of a new roll to the cradle has been completed; the inspector slides the rails 27- 27 baclquiider the plati n where they are out oiflthe way. A holeS'ZfFi'g, 2, is out in the topo tthe platform near its forward edge to atiord convenient access to the front crosspiece 28. i i j i A chair or seat 30 is provided for the in specter, and supported onfa bracket 31 which is pivoted at 32 on a vertical stand or base 33,sothat the seat can be swung from its normal position in front of the inspecting stand into an inoperative position, as" shown in dotted lines in Fig.2, at onej sideot the path of delivery of the rolls In sonic machines considerable pressure must be exerted on the treadle 17 in starting the machine into operation, and in order to enable theinspecwr to exert the desired pressure more easily and co1nt'ortabl-y,air arm 34: (Fig. 1) is secured to the seat30, and is bent doii'nwardlyso that when the seat is pushed back away ttroin the table, this bracket will enp'age the front of the plattorn, A and act as a stop; This 'arraiigemerit enables the inspector to brace ap'aiiist the back of the chair as shedcpresse's the The seat also is adjustable "verally to the requirements of different inspceto-rsJ For this purpose the seat is mounted on a screwfifi which is threadedin a hole formed in the outer end of the bracket 31, and a set screw 36 is provided to lock the screw 35 in its adjustedposition.

After the inspection of a web of cloth hasibcen completed, and the cadet the web appears on the board l, the inspector transiers a new roll-to the cradle 6 as above described, then pulls tlie end of thejwcb of cloth from this roll up on the table and pins it to the trailing endotthe web" which is just running out. This operation canbe performed very conveniently and with a minimum of veffort, for, the reason that no r r v ,l threading-in of the endus, required, it being simply necessaryto pick 'upthegend ot the web on the roll in the cradle' and pull it over the guiderolh'? and lay it on the table t. The inspector neat depresses the treadle 17 vto start, the feecli-ngtoi the web, so that the new end willbe carried through the rolls and 9 into position to be wound on a tube or: pipe 12 which, will be placed by an'atten'dant inithe properip o'sition Yon t lielshell roll:

'i'ers a new roll to the cradlein Etheina-nnerX above described. Thisapparatus, therefore,

results in a inorecaret'uli andj'accurate in- SPGOtlOlLOf the cloth, andltzehnnnatesltliei diiiiculty. in threading-in which? has been ex-: perienced in apparatus of; this type heretofore used. a

The fact; that a one; or more sparerrolls of cloth are always'von. the platform ready to be delivered to the cradle, and the ease, with which this delivery is effected are important factors in eliminatingxdelay in changing rolls, anduhence increase the; output. or the machineQ' T r i i It will also be appreciatedlthat,while; I have, herein shown andidescribed the best embodiment of my invention 1 that a I have so far. devised, the inventioni 'niay be embodied in many other: forms without departing from the spirit. or scopeithereof. Eorexaniple, the platform and'cradleinay be replaced by equivalent pieces oflapparatus performing essentially the same functions butzdiitering in minor details, and these terms areintended to include equivalent structures.

Having thus des'cribed my invention, what i I desire to. claim as new is:

1:111 a cloth inspection apparatus, the combination offan inspecting stand, l l'lQ-l l itr nisin forifeeding awebof cloth overt said stand, a cradle forisupportingia roll of cloth froniIwhichisaid-web is. unwounddn a posi+ tion uunder said stand, a platform in front of said standrfor supporting aplurality of saidrolls, rails forsupporting said rolls for delivery from, said platform torso-id, cradle, a seat normally positioned infront, of said stand, and means at one side of; the pathot delivery of saidrolls for; supporting said seat. i i

2. In a cloth inspection apparatus, the

combination of an inspecting stand, mecha nism for feeding a web of cloth over said stand, a cradle'for supporting a roll of cloth from which said web is unwound in a position under said stand, means in front of said stand for supporting a roll in readiness for delivery to said cradle, a seat normally positioned in front of said stand, a bracket supporting said seat, and a pivotal support for said bracket at one side of the path of delivery of said roll,'whereby said seat may be swung into and out of its operative position.

3. In a cloth inspection apparatus, the combination of an inspecting stand, mechanism for feeding a web ofcloth over said stand, a cradle for supporting a rollof cloth from which said web is unwound in a position under said stand, a platform in front of said stand for supporting a plurality of said rolls, rails forsupportingsaid rolls for delivery from said platform to s-aid cradle, a seat normally positioned in frontof said stand, a bracket pivotally mounted at one side of the path of delivery of said rolls and supporting said seat for swinging movement into and out of its normal position, and

a rigid arm movable with said seat and posistand,a cradle for supporting a roll of cloth from which said web is unwound, a platform in front of said stand for supporting a plurality. of said rolls in readiness for delivery to said cradle, and rails movable into i o 1 and out ofoperative position for supporting said rolls for delivery from said platform to said cradle.

' i 5. In a cloth inspection apparatus, the combination of an inspecting stand, mechanism for feedmg a web of cloth over said in front of said stand for supporting a plurality ofsa'id rolls, rails forsupporting said rolls for delivery fromsaid platform to said cradle, means for supporting said railsunposition to bridge the space between said platform and said cradle, a seat'normally positioned in front of said stand, and means at one side of the pathofdelivery of said rolls for supporting said seat.

de'r said platform for sliding movement into 6, In a cloth inspection apparatus, the, combination of an inspecting stand, mech'a-- nism for feeding a web of cloth over said stand, a cradle for supporting a roll of cloth from which said web is unwound ina posi- .tion under said stand, means in front of said stand for supporting a roll in readiness V for delivery to said cradle, a seat normally positioned in front of said stand, and means at one side of the path-of delivery of said roll for supporting said seat.

NORMAN T. THOMAS.

45 stand, a cradle for supporting a roll of cloth from which said web is unwound, a platform a