USRE11843E - Axd frank f - Google Patents

Description

59. LtAiHtH MANUFACTURE Reissuod July 3|, I900.

J. CRAIG G. F. F. SLUCUMB. LEATHER STAKING MACHINE.

(Appliution fllod Jim. 25, 1899.)

2 Sheats8hcet l,

311 ue n row Witness |aromb c am QM h H MR, FLYERS LC PHOTO Udl Rgissued July 3|, I900.

J. CRAIG &. F. F. SLDCUMB.

LEATHER STAKING MACHINE.

(Applicltion filed Jan. 25, 1899.)

2 Sheets-Shaet 2,

g @uueutow Sen STATES JAMES (it-\lti AND F lAlYK F. SLOCOMI, ()l WILHIXGTOX, DETnUYAlH-I.

LEATHER-STAKING MACHINE.

EPECIFICATION forming part of Reissued Letters Patent No. 1 1,843, dated July 31, 190

Original No. 604,560, dated May 24,1898- Application for reissue filed January 25,1899. erial No. 703,401.

To all whom it zit/r7 colt/101w.-

Be it known that we, JAMES Casio and FRANK F. Snoconn, citizens of the United States, residing at \Vilmington, in the county of New Castle, State of Delaware, have in vented a new and useful Improvement in Leather-Staking Machines, which improvement is fully set forth in the following specification and accompanying drawings.

Ourinvention consists of an improved construction of leather-staking machine whereby we are enabled to effect an exact and delicate adjustment of pressure on the leather which is being staked while the machine is in motion.

It also consists of a novel arrangement of staking-rolls, one of which is capable of vertical and lateral adjustment, according to requirements.

It also consists of novel means for effecting the adjustment of the staking-jaws while the machine is in motion, at the same time enabling the operator to stand on both feet, as well as to effect the adjustment with accuracy and precision not heretofore attainable, and in addition permitting him to release the adjusting device instantly instead of being compelled to hold it in position.

It also consists of means for cleaning the table or plate, which assists in effecting the desired adjustment.

It further consists of novel details of construction, all as will be hereinafter fully set forth, and specifically pointed out in the claims.

Figure 1 represents a side elevation of a leather-staking machine embodying our invention, a portion of the same being broken away. Fig. 2 represents, on an enlarged scale, a plan view of the forward extremity of the upper jaw, showing the manner of effecting the lateral and vertical adjustment of one of the rolls carried thereon. Fig. 3 represents a section on line .r r, Fig. 2. Fig. i represents a perspective view of the table or plate and the adjusting-roll employed, the same being shown in detached position. Fig. 5 represents a perspective view of a rod or shaft employed having its journals set eccen' trically to its body. Fig. C- represents, on an enlarged scale, an end elevation of the shaftsccn in Fig. 5. Fig. 7 represents a front ole vation of a portion of the housing seen in Fig. 1, showing the swiveling or retaining dcvice for. the knee-piece. Fig. 8 represents, on an enlarged scale, a perspective view of the knee-piece seen in Fig. 1. Fig. 9 r pre sents a section on line 3 Fig. 1.

Similar numerals of reference indicate cor responding parts in the figures.

Referring to the drawings, 1 designates the housing of the machine, the same being of the usual or desired construction.

2 designates the connecting-rod employed, a portion of the same being broken away, it being of course understood that said connecting-rod may be actuated or reciprocated by means of a crank or other similar device. (Not shown.) 3 designates a pin or pivot common to said connecting-rod and to the plates 5, the general contour of said plates being understood from Fig. 1, and said plates when in assembled position forming, with their adjuncts, a cross-head t, which reciprocates in suitable slides, a detailed description of the latter being deemed unnecessary, since the same is old in the art, said cross head in practice being preferably cast in one piece.

7 designates the upper jaw, which is pivoted at 6 to the plates 5, the rear portion of said jaw 7 being provided with a roller II, which is suitably supported and is adapted to contact with the cam S, which is carried by the connecting-rod 2, the lower jaw T be ing actuated in substantially the same manner and it being evident that by reason of the construction and arrangement of the cams and their adjuncts when the parts are in the position seen in Fi 1 the forward portion of the jaws will be caused to approach each other and remain in this position during the backward movement of the jaws, or, in other words, their movement to the left, said jaws opening when at their extreme left-hand portion and remaining open until at or near the end of their forward movement they reach about the position seen in Fig. 1, when they again close, the above construction and operation being old per .se and forming no part of the present invention.

11 designates rods which are located on either side of the connecting-rod 2, car-h of said rods havingone and attached lo the in or pivot in the present instance, while their upper portions pass through the 'ross-bar I washer 12, the tension being reguhited by manipulating the nuts 12", it being understood that each rod 1 l is providml t a spring.

13 designates the forward end of the upper jaw, the same having the plate 1t attached thereto and held in position by means of the bolt 15. The forward portion of said plate 1* is in the present instance widened, as at 16, and has bolts or hangers lTpassing therethrough, said bolts being held in position by means of the shoulders 17" and the nuts 18, the lower portion of each of said bolts or hangers being provided with a bearing IS, in which the journals 11' of the roller 20 revolve.

21 designates a plate, which is supported upon the plate 11L, the former plate being provided with the cross-piece 22 and the arms 23, said arms being provided with the slots 24, through which pass the cap-screws or threaded stems 25, said stems each having the head 26 and the washers 27 thereon, by means of which the arms 23 are held in juxtaposition with said plate l t, and provision is thus made for enabling said arms 23 to be shifted laterally in the manner indicated in dotted lines in Fig. 2.

28 designates threaded stems located in the forward portion of the arms 23, said stems passing through said arms and beingengaged on either side by the nuts 29 and 30, the lower portion of each of said stems being provided with a bearing 31, in which the journal 3; of the roller 3t revolves, it being thus evident that the roller 3i is capable of vertical adj ustment by manipulating the nuts 29 and 30, as well as lateral adjustment upon the manipulation of the cap serews 25.

32 designates a knife or blade which is at tached to the forward portion of the lower jaw T the latter having a pad or blade 3th, located in proximity to said blade 32%, the latter being somewhat longer than and located in advance of said pad 34*.

33 designates the hides or skin which is to be staked, the same passing over a breast beam or roller 33 which is supported on stationary hearings in the forward part of the machine.

35 designates a spring which has its free end bearing on the lower jaw 7", while its outer end is attached to any convenient portion of the machine.

36 designates a plurality of arms which are provided with the hubs 37, the latter having a bearing in the lower portion of the plates 5, said hubs having the openings 38 located eccentrically thereto, as indicated in Figs. 1, 4, and 9, and said arms, plates, and lower jaw 2 being held in proper relation to each other by means of the pin or rod .itl, the laticr being held in PZ'ULJ"?i jriil lil tinsctscrews id.

It is evident that by changing" the p sition of the eccentric-pin J5 tln= PHH'L'HHIIIL l' the lower jaw 7'' may he changed from up and down to an oblique or a lateral mov-nu-nt'. as desired.

ll designate-- a roller which is jourimled in the lower portionofthearnis l i and isa apted to travel on the plate or bed l2, which is movably supported, as will be hereinafter L".\- plained.

i designates an upright plate or scraper which is attached to the arms it, which latter are pivotally attached to the armshi, the function of said scraper being to lgeep the bed 42 always clear in advance of the roller ti.

it] designates an arm which is pivotally attached at 4:5 to the forward portion of thebed 42, said arm being pivotally mounted at l7 on a suitable portion of the housing 1.

4O designates the arm on which the rear pt)! tion of the bed 42 is supported, said bed being attached to said arm by means of the pin 4C8, while said arm is mounted on the shaft 50, which has its journals located eccentrically to said shaft, as will be understood from Figs. 1, 5, and 6, said shaft 5 being held in proper position by means of nuts 52, which latter are removed from Fig. 1 for clearness of illustration.

52-5 designates a cross-piece (bestseen in Fig. '7) which has the depending members 5i, which are attached to the front of the housing 1. 55 designates a hub or block which is adapted to be supported on said cross-piece 53, said hub having an opening 5i] therethrough, through which a portion 57 of the threaded stem 58 passes, said stem being pro vided witha head 50, which rests upon a shoulder 61 of the hub 55, the latter being thus held in the desired position and being freely rotated or oscillated, although any lateral or upward movement is prevented by reason of the nuts 59, which engage said stems 58. V

62 designates the upper inclined or cam face of the hub 55, the same being adapted to contact with the inclined cam-face 315, attached to the forward portion of the table l2. (Best seen in Figs. 1 and 4:.) Lil designates another lower cam-facelocatcd on the upper portion of the hub 55, the same being adapted to contact with the inclined or cam face US of the table l2. (Best seen in Fig. i.)

66 designates a plurality of arms extending in radial orother directions from the hub 55 and connected with the plate (57, which latter is curved in the present instance and has the rods 68 projecting therefrom, which are adapted to be engaged by the lance ot' the attendant or operator.

(39 designates a washer, preferablyof vulcanized fiber or other material, which, in conjunction with the nuts 5' and the head U of the stem 38, acts as a frictional adjusting device to prevent any slipping or motion of the l T", as will be understood from i and 1*.

hub :35 and pressure-arc 67 and rods 68, atthe extentofadjustmcnt being rcgnhited with tached thereto, whichmight be caused by the great exactness by means of the eccentric vibration or jarring of the machine. The connections. (Seen in Figs. 1 and 7o 5 nuts 59, as will be apparent, are intended to The foot-treadles heretofore in use for adadjust the tension on said hub 55. justing the pull or pressure on machines of The operation is as follows: The jaws 7 and this class while in motion have been funda- T when at or near their extreme forward pomentally imperfect and objectionable in that sition appear as seen in Fig. 1, the knife 82 theynecessitated the attendants maintaining 7 :0 assuming a position intermediate the rollers I a continual pressure. In practice the effect and 3. The hide to be staked is indiot'this has usually been so fatiguing that the eated in dotted lines at at the right of Fig. operatoris found to depress the treadle con- 1, and the same having been placed in posistantly to the door or other stop in order to tion and held between the body ot the opersupport his weight on both feet. Obviously 8o :5 ator and the beam or roll 33 the jaws 7 and the resultof this has been to make thetreadle, 7' are caused to move backwardly or to the instead of a means of regulating the pressure, left through the medium of the connectingmerely a device for applying it. With our rod '2, and the hide 33 being held stationary swivelingorlatei'allymovable devicethepresby the attendant it will be seen that the sure is not only applied, but regulated with 85 2o proper treatment will be imparted thereto great accuracy and precision, and the operduring the rearward movement of the rolls 2O ator can change the pressure with each skin, and 34. and the blades 34. and 32 the operas he should do, instantly, and without the ator or attendant shifting the hide or skin as slightest fatigue or interruption to his work, desired until every portion of the same has and the frictional adjusting device holds the go been treated or staked. swivel just where it is placed, being capable lhe thickness of hides varies-according to of adjustment, so that the swivel shall not the class of work, and by adjusting the dischange position on account of any vibration tance between the rollers 3t and 20 the maof the machine, nor, on the other hand, move chine can be regulated according to the class so stiltly as to require any exertion of force. 5 of hide under operation, while during opera- It will further be apparent that were the tion the jaw 7* can be adjusted to conform treadle motion not fatiguing it would stillbe to the varying thickness of a particular hide. objectionable on the ground that it does not The distance between the rollers 3t and 20 admit of accuracy, because it is evidently can be regulated by loosening the stems or impossible for the attendant to control the too screws 25 and moving the arms 23 toward or motion of one foot with anything approaching away from the roller 20, thereby imparting a precision even for a short time while comlateral adjustment of the roller 34. The pelled to balance his weight on the other foot. roller 34 is also enabled to be vertically ad- Having thus described our invention, what justed, when desired, by manipulating the we claim as new, and desire to secure byLet- I05 nuts 29 and 30, and thus shifting vertically ters Patent, is-

the stem 28, and consequently said roller 3i. 1. In aleather-staking machine, a plurality The upward and downward movement of of rollers mounted onajaw thereof,and means the jaw 7 can be adjusted with great exactfor enabling one of said rollers to be raised or ness during the operation of the machine lowered independently of the other roller. no without stopping the latter by the operator 2. Inaleather-stakingmacl1ine,a plurality oscillating in a lateral direction to the deof rollers mounted on a jaw thereof, means sired extent the knee-piece 66 (Seen in for enabling one of said rollers to be raised Figs. 1 and 8.) The desired lateral oscillaand lowered independently of the other, and tion is imparted by the knee of the operator, means for varying the distance between said x :5 whereby the contact of the inclined or cam rollers.

surfaces will cause the table or bed t2 to be 3. In a leather-staking machine, an upper raised or lowered, and the adjustment of the jaw, alowerjaw, a blade carried by said lower rear portion of said table can be readily efjaw, a roller mounted in bearings attached fected by rotating to the desired extent the to said upperjaw, adjustable arms carried by 120 rod or shaft 50, having the eccentric journals said upper jaw, stems adjustably supported 51 located thereon in the manner described, in said arms, means for securing said stems the-different extremes of position which the in their adjusted positions and a roller havrod 50, having its eccentric journals 51, may ing hearings in said stems. be caused to assume being indicated in Fig. 4. In a leather-staking machine, an upper 125 G, the table 4:? requiring no attention after jaw, a roller mounted in suitable bearings being pnce adjusted. The elevation or deattached to said jaw, adjustable armscarried pression of the table or bed t2 will cause a by the latter, said arms supporting adjustcorresponding movement to be imparted to able threaded stems,andarollerhavingbearthe roll 41, and consequently a slight oscillaings in said stems. r 0 tion will be imparted by reason of the eccen- 5. In a leather-staking machine, an upper tric hearings on the arms 36 to the lower jaw jaw, a roller journaled thereupon, arms adiustably mounted on said jaw, adjustable stems supported by said arms, and a roller journalcd in said stems.

U. In a leather-staking machine, an upper jaw having a plate attached thereto, a roller journaled in bearings depending from said plate, slotted arms having a cross-piece attached thereto, means for securing said arms to said plate, bearings capable of vertical adjustment depending from said arms, and a roller journaled in said bearings.

7. In a leather-staking machine, a crosshead having upper and lower mounted therein, means for reciprocating and for opening and. closing said jaws, a plurality of arms having hubs journaled in said crosshead, openings in said arms located eccentricallyin said hubs, a rod passing through said openings, means for holding said rod in position, and means for raising and lowering said arms.

8. In a leather-staking machine, a bed or table, arms pivotally attached thereto and supported from the housing of the machine, an inclined or cam-faced projection depending from said table and adapted to contact with a hub having corresponding inclines thereon, and means for actuating said hub, in combination with connections from said bed for adjusting the lower jaw of the machine.

9. In a leather-staking machine, a bed or plate movably supported, arms common to said bed and to the housing of the machine, one of said arms having a shaft passing therethrough, said shaft being provided with bearings eccentric thereto, means for raising and lowering said bed, and connections from the latter to the lowerjaw of the machine for adjusting saidjaw,

10. In a leather-staking machine, a cross piece, a hub supported thereupon, said hub having an opening therethrough and a shoulder therein, a threaded stem passing through said opening, and having a head adapted to engage said shoulder, a plurality of cam-faces on said hub, a table having a plurality of camfaces thereon, arms extending from said hub and having a plate attached thereto, and pins projecting from said plate, in combination with connections common to said plate and to the lower jaw of the machine for adjusting saidjaw without stopping the operation ofthe machine.

11. Inaleather-staking machine, upper and lo werjaws, a table, suitablysupported, means for raising and lowering said table, a roller supported upon the latter, arms common to said roller and to one of said jaws, a scraper adapted to contact with said table, said scraper being located in advance of said roller, and suitably attached to said arms,and means forreciprocating and opening and closing said jaws.

12. In a leather-staking machine, an upper and lower jaw, a cross-head therefor, a plu ralit-y of arms having hubs mounted in said jaws pivotally eross-ln2ad, openings in said hubs oe -entrieally located, a rod passing through said opeuiugs and the lower jaw of the machine, and means for raising and lowering said arms.

1 In aleather-stalcing machine, an upper and lower jaw, a roller mounted in suitable bearings attached to said upper jaw, adjust able arms carried by the latter, stems adjustably supported in said arms, and a roller hav ing bearings in said stems, in combination with a plurality of upright blades attached to said lower jaw, one of said blades occupying the space between said rollers when said jaws are in their forward position.

ll. In a leather-staking machine, a bed, arms pivotally attached thereto and supported from the housing of the machine, an inclined or cam-faced projection on said bed, adapted to contact with a hub having corresponding inclines thereon, and means for supporting and actuating said hub.

15. In a leather-staking machine, a hub suitably supported and having an opening therethrough, and a shoulder therein, a stem passing through said opening and provided with a head adapted to engage said shoulder, and hold said hub in position, a plurality of cam-faces on said hub, a table suitably supported and also provided with a plurality of cam-faces, and devices attached to said hub whereby the latter can be rotated by the knee of the attendant.

16. In a leather-staking machine, pivoted jaws, suitably supported, a movable bed, a roller carried by the lower of said jaws and bearing on said bed, a cam-face carried by said bed, and a rotatable hub having a camface adapted to register with the cam-face carried by the bed.

17. In a leather-staking machine, an upper and lowerjaw pivotally supported, a movable bed, means for supporting the latter, a roller carried by said lower jaw and bearing on said bed, a cam-face on the latter, a rotatable hub having a cam-face adapted to coaet with said first-mentioned cam-face, and means for actuating said hub, said means being controlled and actuated by the knee of the operator.

18. In a leather-staking machine, a pivoted jaw, the pivoted arms, a bed supported by said arms, a roller carried by said jaw and bearing on said bed, a cam-face carried by said bed, and a rotatable hub bearing a camface adapted to contact with the cam-face carried by said bed.

19. In a leather-staking machine, upper and lower jaws pivotally supported, a blade carried by said lower jaw, a roller mounted. in bearings attached to said upper jaw, arms car- .ried by the latter, stems adj'ustably supported in said arms, means for locking said stems in position and a second roller having bearings in said stems.

20. In a leather-staking machine, an upper and lower jaw pivotally supported, a movable bed, means for sustaining the latter, connec- IIO tions common to said bed and jaw for operating the latter, a cam-face on said bed, a rotatable element having, acain-face thereon adapted to coact with the first1m1=nti0ned camtace, and means for actuating said element, said means beingeontrolled and actuated by the knee of the operator.

:?L In a leatherstaking machine, in combination with the jaws thereof, mechanism for reciprocatingand opening and closing said jaws, and laterally-movable meansforadjnsting said jaws, said means being controlled and operated by the knee of the attendant,

22. In combination with the jaws of a leather-staking, machine, mechanism for actuating said jaws, laterallynnovable means for ad one of said jaws, and a frictional ailjnsting device forcontrolling'said jawa ljnsh l controlled by the knee of the operator jnsting mg means.

- reciprocating and opening and closing said jaws, and laterally-movable means for adjusting one of said jaws, said means being located below said jaws.

JAMES CRAIG. FRANK F. SLOC'OMB.

{leather-staking machine, of mechanism for l l l l lVitnesses:

EMMA L. BURNS, CLARENCE A. PIERCE.

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