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Publication numberUS1098770 A
Publication typeGrant
Publication dateJun 2, 1914
Filing dateNov 1, 1913
Priority dateNov 1, 1913
Publication numberUS 1098770 A, US 1098770A, US-A-1098770, US1098770 A, US1098770A
InventorsJacob Thomas
Original AssigneeJacob Thomas
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Wall-paper-trimming machine.
US 1098770 A
Abstract  available in
Images(7)
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Claims  available in
Description  (OCR text may contain errors)

J. THOMAS.

WALL PAPER TRIMMING MACHINE.

APPLICATION FILED NOV. 1, 1913.

. Patented June 2, 1914 I 7 SHEETS-SHEET I.

NNN NWN WNN J. THOMAS. WALL PAPER TRIMMING MAGHINE. v APPLICATION IILED NOV.1,1913. 199 8- 77113 Patented June 2, 1914.

7 SHEETSSHEET 2.

. T I v 05x J THOMAS WALL PAPER TRIMMING MACHINE.

APPLICATION FILED NOV. 1, 1913. 1 9 770 Patented June 2, 1914,

7 SHEETS-SHEET 3.

J. THOMAS. WALL PAPER TRIMMING'MAGHINE.

APPLICATION FILED NOV. 1, I913.

late ted'mnez; 19m

' 7 SHEETS-SHEET 4.

" JwZ.1%amz ATTORNEY J. THOMAS. WALL PAPER TRIMMING MACHINE.

APPLIGATJION FILED NOV.1-, 1913, Patented June 2,

TSHEETS-SHEET 5.

J THOMAS WALL PAPER TRIMMING MACHINE.

APPLICATION FILED NOV. 1, 1913- r Patented June 2, 13 14;".

Fungi-MILL J. THOMAS. WALL PAPER TRIMMING MACHINE.

5 i APPLIG'ATTION FILED NOV. 121913.. 2,

7 SHEETS-SHEET 7.

z I" J6 he advise STATES-BATE OFFICE.

JACOB THOMAS, own-swam, DELAW RE.

thesis-7o; I

it'mziylconagm ei"z en of the United States, ,7 Newa k; eount q l1'ei'finmijre,have vented certain new and. useful, Improvements in Wall-Paper-Trmr residing at- Yhiifg'Maehines, of which the following is a ficifiation. v i v Y' invention relates -tothe manufacture fl of fancy borders. i r 1 is 'jasbeerrthe usual'practice'to trim the. irr gnnr ages ofborder-patterns' by hand. Sf "ha dtrimming-eonsumedailarge por the time of the paper v increasingthe cost of paper-ing a room when such designs as required irregular tr'i n n' ig were" 'eniployed. It is therefore trade witli tlie ed strimmed, audit-is the nrg object,

gnfinaehine particularly. adapted for such work. Efi'orts have-I been made to prov de 2 5 for.- mechanically trimming borders,

v 40 the trade; whereby.the'- unt1'immed.paper may kept in stock the manufacturer 'and trimmed in the desired quantities as necessary I for the market.

" A further object of my invention is to,

a provide a'paper trimming machine of the character mentioned upon. which the printed paper may lee-"placed inflarge rolls, triinmed. andrewound. into. the size rolls required for the trade.

fn'irther and particular object of my intention is to class mentione rnea'ns for" initially registeiiing'the cutting device with the vdesign on ae a e still further and particular ibbject ofmyinvention' is to provide means '111 .a dey Suecification'of Letters iatent Application filed mwemberi, 1913. rial no. 198,684.. r: I

' itlkhownthgrt I -JACOB: Tennis, '3;

Newcastle, and State of- Pap said roll to said platen and kni e roller, re-.

hanger thereekto'. fu-rnish"such borders tothe o my invention to" provlde anism as desired.

"for. normally drivin freshly printedrovide in a machine of-the 'wm-rarnn-'ramitme taemn.

, Patented an 2, 19.14;

ting device maybe .varidat the will of the operator to maintain proper registry. be

-tween -the.-cuttingdevice and the design or for bringing the same "the machine is. running,

into register while should they become out of register. 1. z 3 i j 1 Other objects will appear hei'einafter;

',;W it h these objects in view my invention consists'gen'erally'in a, papertrimming mat-- ehinecoinprising 'a rotary platen and. a ro tary knife rollercooperating therewith, means for supporting a ,roll of printed means for feeding the aper from winding mechanism and 'the trimmed paper-from mechanism,

My invention further Consists in a trim ming macbine as mentioned equipped with means under the control of the operator for starting and'stopping the rewinding mechineans for feeding My invention further and more particuvice Lot the grass mentioned; whereby I relat ve speeds of the paperand= of the cut the platen to said larly consists in a trimming machinej as mentioned further characterized by means the; platen and the knife roller at uni orm peripheral speed and means for varying the 'rel'ativ griphoral-speeds, of the-same V My invention further consists :in; a wall paper trimming. machine 'comprismg the platen andkni-fe' roller as-jabove mentioned in combination with means ior shifting the knife roller toward or from. the platen,

means for shifting the same-transversely of theplaten and means for shifting the same peripherally of the platen.

My invention further consists in a paper trimming machine comprising the platen and knife rollers together with the shifting means above mentioned incombination-with means for driving said platen and, knife rollers, and means for initially rotating the knife roller to hringthe knife pattern initially into proper registry with the design longitudinally of the. paper.

' My invention furthe'r'consists in a wall paper features above stated and further'equipped "with improved tension devices :for main- .taining-"a proper lte'nsion' on the webof .chine.

paper at its various ipositions in't-helmatrimming machine. embodying the nMy invention further consists in various. 7

' changing mechanism for the knife roller,

- Fig. 6 is a plan viewof the same, Fig. 7 is the same u on the opposite side from that comprising two similar upri ht portions 1- drawin .tion an m which- Figure 1 is a front elevation of a wall paper border trimmingimachine embodying my invention in its preferred form. Fig. 2 is a side elevation of the forward portion of the same, Fig.3 is a side elevation partially in section of the rear portion of the machine, Fig. 4 is a front elevation upon an enlarged scale of the driving and speed Fig. 5 is a longitudinal section of the same,

a-vertical section taken on substantially the line :v-a: of'Figs. 4 and 5 and illustrating the bearing and driving gear for the platen, Fig. 8 is a side elevation of the knife roller supporting device and adjacent portion of the frame, Fig. 9 is a transverse section of the same on the line y-y of Fig. 8, Fig. 10 is a longitudinal section of: the same on the line z-z'of Fig. 8, Fig. 11 is an elevation of shown in i 8 and with a portion of the supporting device removed, Fig, 12 is an elevation, partially in section of the mechanism for initially rotating the knife roller to bri the design of the knife into registry wit the pattern of the paper, Fig. 13 is an end elevation of the same, and Fig. 14 is a detail view illustrating the means for returning the speed changing clutch operatingz lever to initial osition.

eferring now to t e'd'ra'wings 1 indicates the frame at the forward end of the device and 1" connecting at their vower ends by transverse members 2 and at the u per end by a transverse arch bar 3. Exten ing rearwardly from the arch bar 3 are a air of longitudinally disposed frame mem rs 4 supported at their rear ends by uprights 5. The uprights 5 are provided with brackets 6 to support the arbor '4' of a roll 8 of the printed paper which is to be trimmed. Arranged upon a shaft 9 above the roll 8 is a drum 1O forl feeding the web A of paper from the rol v 11 indicates a small roller mounted above the drum 10 and coiiperating with the same.

Mounted upon the shaft 9 is a driven pulley 12 which is coupled to said shaft 9 by an ordinary clutch, not shown, 13 indicating the lever for operating the clutch. By this arrangement the feeding of the paper from the roll 8 may be regulated as desired. As the web of paper passes from the drum 10 it is received upon the floor or other support 1 IS a driven shaft 14. and arran d above the shaft 14 is a parallelly dispose shaft 15 upon which is mounted the platen 16. The

platen 16 comprises a large cylindrical drum having its outer face 17 covered or prepared with suitable material for coiiperation with the knife or knives of the knife roller. The shaft 15 is mounted in suitable. bearing blocks 18 and is provided adjacent one side of the machinewith a large gear 19 meshing with a pinion 20 on the driven or power shaft 14. By this arrangement, when the machine is in operation, the drum 1 driven at a constant speed. Q a

The bearing blocks 18 are mounted in suitable guides orways 21 arranged on the frame of the device, and suitable means are provided for raising and lowering the blocks to raise and lower the platen. To this end an oscillatory shaft 22 is mounted tramversely'of the frame in brackets 23 extending upwardly from the frame members 1 and 1". A pair of short arms 24 are fixed to the shaft 22 and are connected by links 25 with the blocks 18, whereby rotary movement of the shaft 22 will raise or lower said blocks. 26 indicates an operating lever fixed to one end of the shaft 22, and 27 indicates it quadrant adjacent with a stop 28 under which the lever 26 is adapted to be engaged for intaining the platen in raised position whiz? desired. The g'uadrant 27 is connected at one end to-the rame member 1' as shown and a brace 29 is provided for steadying the opposite end 105,

thereof.

30 indicates the knife roller provided with a shaft 31 mounted in adjustable bearings 32. Provision is made for moving the knife roller toward and from the platen in a path substantially radially thereto, for adjusting the same vertically with relation to its path of travel toward and from the platen, and for adjustingthe same transve'rsely across the face of the platen. To this end the frame members 1 and 1' are provided with forwardly and downwardly projecting extensions 33 which are substantially U-shaped forming parallel arms 34 and 35 equipped with ways 36 and 37 respectively, and connected by a transverse lower portion 38. Slidably mounted in the ways: 36 and -37 is a slide comprising parallel guide portions 39 connected by a pair of parallel portions -10 adjacent their lower outer ends. The members 39 aresubstantially co-extensive in width with the ad'acent portion of the frame and are provi ed i-ng-t-h'e adjacent'edges of theframe or upon the inner edges with flanges 41 engag as shown clearly in 'Figs. 9 andll. ,The

connecting P ns. 40 are preferably co extensive in-width with that of the members 39am fianges tl [so that the inner faces of "the flanges portions 40 form a plane siirface as shown clearly in Fig. 11.

, 42 indicates a pair of .alined notches or ways formed in the opposite flanges 4-1.

Bearing against the flanges 11v and coplanar faces of the portions-dtl'is a plate 43 proa transversely extending arm 45 terminating. in an enlarged portion 46- having its outer 1 may vided with a vertically disposed rib 44:, engaging-in the-ways &2 whereby said plate moveyertically with slide. The .plate 43 is provided with a face in the plane with the. outer edges of the ways 36 and 37 and adjacent framepcn tions. Secured to the port-iontfi, as by tap screws 47 is a plate 48, preferably coextensive in'length and breadth with the plate 43 and serving to hold said plate and arm 45in position. v

The bearing blocks 32 aresecured to the arms 45 upon opposite sides of the ma-- chine and the bearing-block upon the right 7 hand side is transversely adjustable thereon.

' :slidetcgether with the knife roller will be To this emi'said blockis'provided-with a ingly formed ways in the respective arm and-a screw- 50 is threaded into the dovetailed portion and swiveled into the member formed-by the plates 33 and 38. By'turning the spectiveblock 32 will be adjusted laterally; The shaft 31 isprovided with annular ribs or collars 51 engaging upon opposite sides of gthe adjustable bearing block. 32 wherewhen said block is adjusted the knife y roller will be. shifted transyersely of the platen. Threaded thronghthe portion 38 of the-frame exten'sion'is a screw 52 provided with a hand wheel 53 for turn'hig the same. The opposite' end of the screw 52 is reduced in diameter as at 54 and provided with an enlargedhead' 55 .arranged between the transverse portions c tof the slide, forming a swiveled connection. It is obvious that by turning the screw .52 the moved toward or from the platen and the arrangement is, preferably such that the. screw 52 is substantially radially disposed withrelation to .the platen when, in op-' era'tive position so that the movement ofthe knife roller toward and from the platen willbeina substantially radial path. One

.of the portions 40 of the slide is with a- -:la'teral extension-55 and the plate provided 48- is 'fdrmedxwith .ahousing 56 to receive the-same; Swiveled through the housin 56 is' a screw 57 'which is threaded through per.

relation to the dovetailed portion dQfitting in correspondscrew 50 it is" obvious that the re'-- the extension '55, By turning the screw. 57 the plates 43 and 18 together with the arm 45 and block 32 are raised or lowered. By the-three separate adjustments above described the' knife roller may be brought into proper relation-with the platen to produce a perfectly clean sharp cut and by means o'fthe screw 50 theknife roller may be shifted to bring the knife into proper lateral registry with-the design of the .pa-

The means for bringing ,the knife into proper registry with the design longit-udinally of the web of paper will be-described fully hereinafter. The drive shaft 14 is extended a considerable distance beyond the frame 1 and upon this extended portion of .theshaft is arranged the dr'ivin'g mechanism for the lmife roller and the means for varying the speed of the same. 58 indicates a bracket extending from one side of the frame 1 and provided with a suitable brace 59. Fixed to the shaft l t'as by a set screw 66 is a substantially cylindrical member 61 provided with a;worm gear 62 preferably formed integrally therewith. Lcosely. mounted on the shaft adjacent the member 61 is a member 63 having an annular flange 64 thereon and a gear 65- keyed thereto. The gear 65 meshes with an idler 66 which in turn .nzeshes with the gear 67 on the knife shaft 31. Fixed to the flanged is a bracket '68 provided with bearings 69 for a. short shaft 70. The shaftfTOis provided-with a worm '71 arranged between the bearings 69 and with a worm wheel 72 which in turn meshes with a-worm 73 on a shaft'7 t. p ro' jecting perpendicularly from the flange '64 I or parallel with the shaft 14. It is obvious that the motionof the member '61 is transmitted through the gearing462, '71-, 72,73 and shaft 74 to the-member- 63' and the gear 65, the gear 65 thereby normally rotating at the same speed as the shaft 14; and the gears 19 and-20, 67 and 65 are so proportioned as to normally give the same peripheral speeds to the platen 16 and knife e roller 36. The idler 66 is mounted upon a slotted arm 7 5 which is adiustably mounted on a bracket 7 6 on the frame 1 in order that said idler may be brought into proper relation with the gears 65 and 67 after the shaft 31 has been-adjusted. y

Loosely mounted on the shaft 14 adjacent the member 6l'is a clutch member 77 provided with a fixed gear 78 meshing with-a gear 79 on the end of shaft "74:. It is obvious that normally the clutch member 7'7 travels with the members 61 and Y63 and at Y the same speed therewith. A. second clutch member, 80, is loosely mounted on thevshaft 14:, and is provided .with "a 'fixe'd gear- 81 83, said jack Shaft being provided with a which meshes witha gear 82 'on a jack shaft;

second gear 84 meshing with a gear 85 keyed as at 80 to the shaft 14. The ears 81, 82, 84 and 85 are proportioned to rive the clutch member 80 at a greater angular velocity than the shaft 14.

87 indicates a lever for shifting the clutch member 80, the same being provided with a yoke 88 engaging a peripheral groove 89 in said member. The lever 87'extends forwardly and rests upon a horizontal bar 90 projecting from the sideof the frame and is provided with an upwardly extending ear 91. Fixed to the-bar 90 is a pair of U- shaped members 92, one upon each side of l the lever 87, and slidably mounted'on each of said members is a rod 93, the inner ends I of which impinge against the ear 91. The l spring 94 is interposed between a stop 95 on each of said rods and the outer portion of the respective member 92 for projecting I the rods inwardly against the car 91, and

heads 96 are formed on theouter ends of the rods to limit the inward movement thereof. By this construction the lever may be moved either to the right' or left for the 'purpose hereinafter'described, and when released will be immediately returned to normal position.

' Should the-operator notice that thepaper has lagged or that the knife is in advance of the pattern on the paper he at once moves i thelever on the left to throw the clutch member 80 into engagement with the clutch member 7 7 causing the latter to travel at the same speed therewith or at a greater speed than its normal speed when traveling with the members 61' and '63. gear 78 to travel faster than the member 61 thereby turning the shaft 74 through the medium of the gear 79, and, through the train of worm gearing, slows down the speed of the member 63 and gear 65. thereby slowing down. the speed (if the knife. As

soon as the knife is in proper register with the pattern the lever 87 is released and returns to normal position disengaging the clutch mmberlsjand the platen and knife continue to travel at a uniform peripheral speed.

Should it be necessary to increase the speed of the knife the lever 87 is moved to the right. Fixed to the lever is a depending arm 97 provided with a friction face 98 which engages a peripheral flange 99 on the clutch member 77. This stops the rotary movement of the member 77 and gears- 78 i causing the gear 79 to revolve about the gear 78 with a planetary movement, causing the gear 7 9 to rotatein an opposite direction from that in which it rotates when. the

clutch members 77 and 80 are in engagement. thereby increasing the rotary speed of the knife roller. From this position the lever is returned to normal position by the mecha nismabovedescribed on the arm 90.

This causes the The knife. roller 30 is equipped with knives 30 which conform to the outline of 1 the platen to be trimmed and it is therefore necessary, before starting the machine into operation to insure proper registry of the knife with the pattern. The adjustment of the knife roller transversely of the web has been described hereinbefore, and I will now i describe the means for initially re 'ste the knife with the design longitudinally of l the web.

Fixed to the end of the knife roller shaft 31 is a collar 100 provided in its periphery with a worm 'gear 101. Loosely mounted upon the shaft 31, adjacent said collar, is a member 102 to which the gear 67 is secured as by a key 103. The member 102 is pro- F vided with an arm 104 upon which is mounted a bracket 105 carrying a worm 106 which E meshes with'the worm gear 101, thus locking the gear 67 against relative rotation on the shaft except when said worm is 0 rated. j The shaft 107 of the worm is profit- :1 with 5 a head 108 equipped with apertures 109 to receive a pin or other instrument for turn- 1 ing the same. 110 indicates a weighted arm ron the member 102 to balance the arm 104, {and the parts carried thereby. The r 67 being in mesh with the gear 66 is ield f firmly against movement except when the machine in operation, therefore, after the web of paper is in position on the drum, the knives may be brought into proper registry therewith, longitudinally of the web, by turning the worm 106 which turns the shaft and the knife roller carried thereby.

Suitable means must be provided for feedg ing the web of paper through the machine to the rewinding mechanism, to be described hereinafter, and for maintaining a 1'0 r tension on the same. -I have herein hefli; j described how the web is fed from the roll to the oint a. From here the web passes upwarcly and through a suitable guide and tension device. Located upon the frame members 4 are a plurality of transversely extending bars 111, preferably formed of 7 wood and in practice I find three to be sulficient. Adjustably supported on the bars 111 is a pair of longitudinally disposed guide members 112 which are arranger] with their inner faces spaced apart a distance equal to the width of the paper web. The paper passes upwardly over the first bar 111, un- I der the middle bar and over the last bar as indicated in Fig. 2. Depending from the forward ends of the members 4 are angula rl v disposed brackets 113 upon which are secured bearing members 114. Mounted between the members 114 are a plurality of rollers 115. Hingedly connected to the members 114 is a frame 116 provided with a plurality of rollers 117 which are tioned intermediate the rollers 115.

The web A of paper passes between the two sets of rollers, 115, 117

t-ached-at one end ftO and the opposite end'extending through an 1 as shown clearly in Fig. 2', and the tenm'onon the web may be i readilyadjusted by means of the screw 118 .and'hand wheel .119, thejform'er being atthe bearing frame 11 aperture in the free end ofthe frame 116,

I .last'mentionedrollers the web passes 'o'n to onthe' belt.

hers/1' and directly 4 pressing the lever 1'36fby means of the pedal is provided adjacentthe spindle at thefrear endof 5, sufiicient paper has-been wound on the i;

.fIclaimfcombination with men its the'belt 124 i an'inclined member or chute "endless belt 130;. Located to the rear of and adjacent anism'.

ing the, bottom of the box129 and'the' last w'the's'paper deposited in the, rewinding mechanism as indicated by the I v "1.131 indicates the rewinding table above '35 rewindlng spindle 132 upon which is mount.

134 indicates-a power driven pulley coniiec'ted by a loose belt 135 withthe pulley 133.

40' '1 Jtable -131.is a lever "arni 137 for maintaining the same in raised position. The ,lever --with :1 depending -135iwhich tightens spindle 132 to be driven. The 'web is fed to 7 .clineMQ and a pivotally mounted knife 1 1 3 -From the last roller 115 the web passes over? ,a roller'120'adjacent the'iplaten drum and in. I .thepaper-passes upwardly over aroller 121 thence to said platen." After being trimmed at the top of'the-machineand-thence between power drivenrollers 1.22am 123. From the ail-[endless .belt 124a arranged on suitable rollers-mounted in brackets125 and 126 on the'frame member. 127 indicates. a'tension device for maintaining a proper tension Located at the'rear end of the frame membeneath-the rear end of 1-28 leading to a box 129, the bottom of said box being formed of the upper lap of an the-box 129 is the rewinding mech- The paper from the belt 121 passes down the incline 128 onto the belt 130 formmentioned belt is slowly driven so as to move box toward the arrow in Flg. 2.

which'is supported in suitable brackets the ed azpillley 133.

. Pivotally-mounted-upon the stand of the 136 having a weighted 136' is also provided arm 138 carrying a roller 139- which engages the belt-.135. 'By 416'.

140'the roller 139 is forced against the belt the same causing the the spindle 132 over a roller 14:1 and an in j the incline 142 to severthe web when spindle.

peripheral speed and. means for varying the connecting v means, means 1.111 a. wall paper-trimming machine, platen" and a cooperating knife roller in as for supporting "a.

paper, rewinding' mechanism, delivering the'trimmedpaper acent said rewinding niecharoll/of printed a conveyor for to a point; adj

nism and manually operable means-adjacent a said rewlndln mechanlsm :i'or severing the sided with a worm web of-paper,-substantially as described;

2;]111 a'wall paper trimming machine, a platen and a rotary knife roller cooperating therewith, rewinding mechanism, a supporting member adjacent said rewinding mechanisin, means for delivering the trimmed paper to. said supporting member and a manually operable knife extending tran versely across said member, substantially as described. 1

3. In; a wall paper trimming machine, a power shaft and two driven shafts'in combination with gearihg connecting one of said speed of one of said rollers, substantially as described. y 1

5. In a wall paper trimming machine, a plat-en roller'and a knife roller in combine.- ion with a power shaft, gearing connecting said power shaft and saidrollers for the latter at a normal uniform peripheral speed and means interposed in the gearing to one of said rollers for varying the speed of the same, substantially as described.

of the class described, 'a, power shaft and. two driven shafts in com- 6. In a device binationwith gearing connecting said power shaft and one of said driven shafts, a fixed member on said power shaft, a loosely mounted member on said power shafngean ing connecting said loosely mounted 131M114 driving her and the second driven shaft, means-con 'necting said fixed member andsaid loosely mounted member, a pair of clutch members loosely mounted on said power shaft, one of said clutch members being geared to said for driving the other clutch member at a difierent angular velocity from that of the power shaft an means for throwing-said clutch members into described, a

and out of engagement.

'7. in a device oft-he class power shaft and a pair of driven shafts in combination with gearing connecting one of said: driven shafts and said power she-it a.

member fixed to said power shaft and. "progear, a second member loosely mounted on said" power shaft, a worm carried by said loosely snounted meniber and meshing with said worm gear, a'pair of olntch'members loosely mounted on said power shaft, gearing connecting the of said clutch. members and woien,,gemzig connecting other clutch we member and mentioned. shaft,

power shaft for clutch member I member and said power shaft for 80 at a different from said} saidclutch member at a difierent. 7 lat shaft and meansfor said lutch velocity from said shafg'thje first mid ullch members into-and out of em g member pro with 8. In a wall a j a. .la'lev 1w" 'n-mo'ied in one later: shaftand a ig ije'roller aftyin' diregaon into a dl'iV I e y n mid layer I in}; saidjdriveshaft and sa d-platen sha adapted, to; ,said when said a. fixed member on ssidkni f roller '11- lever'cisfmoved m y opposite 'r'ection, subgear wheel rotatably 1nonntedon saidilast, stanti'all'y'asdes'erihed. an adjustable connection it 10.- Iii a w between; saidfixdmember and said gear j,rot$l 'y platen wheel. wherebysaid shaft may be. initially therewith, meansgforf adjusting said kni e rotated to set-trheflm'ife, and caring eonl roller radial] .witl1 -relation tosaid platen, necting'said gearwheel and sai drive-shaft, l means for arfinsting" the sanie trmsversely substantially as described. I I ofsaid-platen, means for normallydriving 9; In a 'device of the class described, a 'said platen and'said roller at a uniform power shaft and a pair of driven shafts in ripheral'speed, means for varying the speed combination with gearing connecting one of of said roller, and; means for initially ros'aid, d1;i\ enshafts and said power shaft, a; tati said knife r, substantially as and member. fixed to said power shaft and "fort e purpose'sgecified. rovided with-a. worm gear, a second menial I "Invtestimony w ereof I have signed my her loosely mounted on said power shaft,' :15 name to this specification int'ne presence of a worm" carriedby. said loosely mount {two subscribing witnesses. ed member "and meshing with said worm JACOB THOMfiI,

trimming. machine, a 40 tnK mi-fe roller coiiperatin members loosely 1 gear a pair of clutch Witnesses:

mounted on said power shaft, gearing conz necting' one of said clutch members and said Anonrn THOMAS, worm, gearingconnecting the other clutch A. 0. 'RYAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3289518 *May 26, 1964Dec 6, 1966Davy & United Eng Co LtdShearing mechanisms
US5635007 *Apr 11, 1995Jun 3, 1997D.W. Wallcovering, Inc.Wallcovering border and method
US5885396 *Dec 16, 1996Mar 23, 1999D.W. Wallcovering, Inc.Wallcovering border and method
Classifications
U.S. Classification83/109, 83/504, 101/248, 83/493, 242/524.1, 83/482, 242/525.7, 83/495
Cooperative ClassificationC14B5/00, B26D7/18