US1887617A - Heel-seat forming machine for off-the-last work - Google Patents

Description

Nov. 15, 1932. I AZBESSOM Y L 1,887,617

HEEL SEAT FORMING MACHINE FOR OFF-THE-LAST WORK Filed A ril 27. 1929 INVENTUR 8M1 m.&w

' while the shoes are mounted upon lasts.

Patented Nov. 15, 1932 UNITED STATES,

PATENT OFFICE EARL A. IBESSOM, 0F MARBLEHEAD, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, .NEW JERSEY, A CORPORATION OF- NEW JERSEY f HEEL-SEAT FORMING MACHINE FOR OFF-THE-IJAST WORK Application filed April 27,

This invention relates to machines for use in the manufacture of shoes and is herein et al., and in United States Letters Patent No. 1,706,278, granted March 19, 1929, upon application of Rene E. Duplessis, it-has been the practice to mold the heel-seat portions of shoes, thereby to shape them for receiving the'conca-ved attaching faces of'wood hee%s,

n machines of the. type above, mentioned the last is supported upon a block carried by-a jack which is movable into and out of position under the die to position the shoe in operative relation to the die and to place it in a position to facilitate the removal of a shoe from the jack and the placing of anforming operation, the block being provided with a last pin to enter the thimble of the last.

In the manufacture of some types of shoes, for example McKay shoes, after a shoe has been lasted and an'outsole laid thereon the last is removed in order to permit attachment of the sole by through-and-through stitching through the upper and insole, and the shoe is then leveled by direct pressure while the shoe is supported by a heavy iron form which accurately fits the inside sole portion of the shoe. At this stage in the manufacture of the shoe, in order to facilitate holding of the shoe during the edge trimming and edge setting operations which are next performed, the shoe is removed from the iron form and a second last has to be placed in the shoe but the second last used in these operations is not usually of a character to enable the heel-seat forming operation to be carried out, since, for the edge trimming and edge setting operations, it is not necessary that the last fit the shoe accurately. Hence this last is removed before the heel-seat forming operation.

In order that the heel-seat forming oper- 1929. Serial No. 358,655.

ation may be performed satisfactorily While the shoe is off the last, it is necessary that.

the rear part of the sole portion of the shoe be rigidly supported inside the shoe to op pose the action of the heel-seat forming die,

and that the shoe be held from lateral and Y longitudinal movement with respect tosuch internal support.

Objects of this invention are to provide a machine of the type disclosed in the abovementioned patents which will be universal so that it may be used in both on-the-last and oif-the-last work, and to provide novel shoe supporting and holding means to enable the heel-seat forming operation to be effectively and expeditiously carried out upon shoes which have had their lasts removed. Accordingly, with these objects in view, the illustrated machine, which is of the type above referred to, is provided with a jack which is constructed and arranged to be used with a plurality of heel plates'of different sizes in 1 terchangeably, one being selected, and mounted upon the jack, which approximately fits the heel-seatportion of the'interior of a given shoe thereby providing for firmly supporting the shoe during the heel-seat forming op'era tion and at the same time holding it from v lateral movement relatively to the jack. In

order to prevent rearward movement of the shoe relatively to'the plate during the heelseat forming operation, the illustrated maerally of the plate out of the way of the shoe positioned upon the plate so that the opera tor may, without interference of the clamp ing member and while the heel-seat portion of the shoe is under pressure, employ a hammer to pound up and shape the shoe around the heel-seat portion thereof. Movement of the clamping member out of the way of the shoe also facilitates the removal of the'shoe after the forming operation and the placing of another shoe upon the jack. In the illusno I trated machine the clamping member is normally urged toward the supporting plate by a spring, and a stop is provided for limiting the movement of the clamping member toward the plate.

On the other hand, when it is desired to use the illustrated machine for operating on.

shoes on the last, it is only necessary to remove ablock carrying theplate'and to substitute therefor a block carrying a last pin.

lVith the above and other objects and features in view, the invention will now be described with reference to the accompanying drawing and pointed out in the claims.

Referring to the drawing:

Fi 1 shows the top ortion of a heel-seat forming machine illustrating a jack having a shoe supporting plateand a die which cooperate with one another to form or mold a heel-seat portion of a shoe positioned upon the plate,' together with a member for coopcrating with the plate to clamp the shoe in position upon the plate during the'heel-seat forming operation;

Fig. 2 is a side view of the top portion of the jack and its shoe supporting plate, the plate having a shoe positioned thereon and the jack being provided with the member which cooperates with the plate to clamp the" Letters Patent which'ma'y beconsulted for a better understanding of such features that are not hereinaf er described. The illus-' trated machine, like those set forth in the Letters Patent referred to, comprises a shoe sup porting jack 1O pivoted to a shaft 12 1) which'is mounted for reciprocation in the frame 14 of the machine toward and away from a die 16 of the desired shape secured to the frame 14 in any convenient manner. The jack comprises a post 18 having-an upper bifurcated portion 20 arranged to receive a tongue portion 22 of a carrier 24, the lower surface 26 (Fig. 2) of the tongue portion 22 being curved and serrated to engage a curved, serrated surface 28 of the post 18 so that the carrier 24 may be canted at a desired angle to the post 18 for properly reacting against the molding pressure of the die 16. The tongue portion 22 of the carrier 24 is also provided with a slot 30 throughwhich e tends a screw 82 8 carried by the post for clamping the carrier 24 in adjustedposition to the post 18, the slot 30 being wider than the screw 32 which passes through it so that the carrier 24 may be slightly raised away from the serrated surface 28 of the post 18 for setting the carrier at different positions upon the post 18.

When it is desired to operate upon shoes off the last, a block 84 is substituted for the corresponding block disclosed in the abovementioned Letters Patent. The block 34 is supported upon the carrier 24 and is provided with '2. dove-tail flange 36 arranged to lide in a correspondingly shaped recess 38 in the top surface of the carrier 24 to permit an amount of rectilinear sliding movement of the block 34 relatively to the carrier 24 transversely of the shoe to be supported. 8

This sliding movement is limited by a stud 40 (Fi g. 3) slidable in a recess 42 in the carrier 24, the stud being arranged to enter an elongated recess 43 in the bottom surface of is provided with a fiat upper surface 48 3) constructedand arranged to receive a series of supporting plates 50 of different sizes and shapes which serveas 'supports'for the heehseat portions of shoes mounted upon the jack, each of the plates 50 being similar in shape to the heel-seat portion of the last upon which a shoe is made. Each of the plates 50 is rigidly held in correct position upon the block 34 by a stud 52 of considerable length which fits into a recess 54 in the upper I surface-48of'the block 34 and by a short pin 56 dependin fromeach of the plates and arranged to nt into a recess 58 in the upper surface 48 of the block 84 to assist in positioning the plate upon the block and prevent rotation of the plate about its stud 52.

Each of the plates 50 is locked upon the block 34 by a catch 60 which engages a notch 62 in the stud 52. When it is desired to re-' move the plate 50 from the block 34, the'catch 60 is released by manually pushing a rod 64 connected to the catch and extending beyond a side of the block against pressure of a spring 65'carried by the rod 64.

In order to cooperate with the plate 50 for clamping the shoe in positlon thereon as shown in Fig. 2 so that the operator will not' be required to hold the shoe against displacement relatively to the plate as the jack 10 is moved toward the die 16, there is provided a finger 66 mounted for movement toward and away from the plate 50.

The mechanism for supporting the finger 66 and for controlling the operation thereof arm 7 0 having a. downwardly extending portion 72 provided with a cylindrical recess 74 arranged to receive a stud, 76 i (Fig. 2) secured to a, finger supporting member 7 8 about which stud the finger 66may be rocked for purposes later to be described.

In order that the finger 66 may be supported for movement toward and away from the plate 50 for engaging the rear portion of a shoe mounted upon the plate, the finger-supporting member 7 8 is provided with a pin 80 extending therethrough,-upon the end portions of which pin projecting legs 82v of the finger 66 are mounted -tostraddle opposite sides of the finger-supporting member 78.

The lower portions of the finger 66 and the finger-supporting member 78 are. provided with hand grips 84, 86 respectively, supporting between them a spring 88 which tends to rotate the finger 66in a counterclockwise di rection (Fig. 2) about the pin 80 thus normally urging the shoe-engaging portion 90 of the finger 66 downwardly and to the left against the rear portion of the shoe near its sole-when the finger-supporting portion 7 8 is in itsvertical position as shown in Fig. 2.

When it is desirable to move the finger 66 away. from the shoe during the period in which the shoe is under pressure in order that the operator may hammer the rear portion ofthe shoe to shape properly the portions of the shoe surrounding the heel-seat portion of the, sole, or where the block 34 has been removed and a block such'as shown in the above referred to Letters Patent is to-be substituted therefor to ec uip the machine. to operate upon shoes on t e last, the finger 66 together with the finger-supportingmember 78 swung or rocked. about the stud '56 to a position shown in Fig. 3.

In order correctly to locate and set the finger 66 in upright position (Figs. 1 andQ) forclamping the shoeand to permit it to be swung convenientlylaterally of thejacl; as above. described, the: upper end of thede pending portion 72 of the arm '50 is provided with a pair ofslideways 92 (Fig. 3) and a socket94 which cooperates with a spring pressed ball plunger 96 (Fig. 2) mounted in a cylindrical'recess 98 of thetinger-supporu ing. member 78, the plunger 96 being released by positivelyswinging the finger-support-.

ing member 78 together with the finger 66 laterally of the jack about the stud 76. The lateral displacement of the finger 66 about the stud 7 6 at opposite sides of the jack is limited, by shoulders 100 (Fig 2) located upon opposite sides of the depending portion 72 ot-the arm 70, one of which shoulders engages a protruding lug 102 of the fingersupporting member 78 as the finger is displaced from its upright operative position.

The minimum distance between the finger 66 and theshoe supporting plate 50 may conveniently be regulated hy a screw. lOh-the I inner end. 106 of whichisarrangedto engage theupper portion of aface 108 of thefingersupporting member :7 8, which screw extends hold of the handigrips, the finger .66-coming 7 into contact with the;rear end of the shoe .to force itagainst the adjacent portions of the plate for positioning theshoe uponthe plate 5 0 longitudinally relatively to the die, with-. out risk of'contact of the finger with the die as the shoe is pressed between the jack and thedie;.-

' It will be noted thatsince the arm 70 lis attached to the carrier2t that the hand grips 84, 86 may be used to effect angular adjustment of the carrier 2 L relatively to the post 18. Should it-be found desirable to operate upon a shoe upon a last, it isonly necessary to remove. the block 3i and to substitute a. block carrying a; last pin; such as described the above-mentioned Letters Patent, the

finger 66-being swung laterally to a position such; as indicated in Figgfiso that it will not interfere with :the operation of the machine equipped-for on-.thelast work; 5

.. Having thus des'cribedimy invention, lwhat I claim as newanddesire to secureQbyLet: ters Patentof the United States is i r 1. A heel-seat formingm'achine having, in

combination, a heeleseat' forming die and-a j ack mountedzior relativemovement to ram the heel-seat portion of ashoerfor therecepy' tion of a wood heel}; said jackcomprising a plate constructedand arranged to vsupporta limited area on theinside of the shoecorrespending to the; area to which pressureijs ap :plied by the die, said plate corresponding in Width.substantiallyto the lateral width of the inside of the shoe to prevent lateralmovement of the shoe; relatively to-the-jack, and a member mounted for movement with the j ck 1 and for movement toward'and away from the rear end of theplateand constructed "and arranged to-engage the shoe to clamp it against the plate and prevent rearward movement of the shoerelatively to the jack. f' 7 v 2. A heel-seat forming machine-having, in combination, ayheel-seat forming die and a jackmounted for relative'movementto'form the heel-seat portion of a shoe for the reception of a wood heel, said jack comprising a plate constructed and arranged to support 7 a limited area on the inside of the shoe corresponding to' the-area to-which pressure is applied; by a the; die, said plate corresponding inwidth substantiallyto the lateral width of the {inside of the shoe to prevent lateral movement of the shoe relatively' to the jack,

and a lever pivotally mounted for swinging j movement toward and away from the rear end of the plate and arranged to engage a shoe at a point substantiallyin the planeof the plate to clamp the shoe against the plate and prevent rearward movement of the shoe relatively to the plate while the die and jack are being relatively moved to form the heelseat. I .7 V

3 A heel-seat'forming machine having, in combination, a heel-seat forming'die and a jack mounted for relative movement to form the heel-seat portion of a shoe for thereception of awood heel, said jack comprising, a plate constructed and arranged to'support a limited area on the inside of the shoe corresponding to the area to which pressure is applied by the die, said plate corresponding in width substantiallyto the lateral'width of the inside of the shoe to-prevent lateral movement of the shoe relatively to the jack, a lever pivotally mounted upon the jack for swinging movement toward and away from the rear end of the plate, and means for normally swinging the lever toward the plate to clamp the shoe againstthe plate. 7

4. A heel-seat forming machine having,'in combination, a heel-seat forming die and a jack mounted for relative movement to form the heel-seat portion of ashoefor the reception of a wood heel, said jack comprising a plate constructed andarranged to support a limited area on the inside of the shoe corresponding to the area towhich pressure is applied by the die, a member mounted on the jack and having a projecting handle portion, a lever pivotally mounted on said member for swinging movement toward and from the rear end ofthe plate, and a spring for forcing the lever toward the plate to engage the shoe and clampit against theplate, said lever having a handle extending beyond its pivot in cooperative relation to said handle portion, said handle and handle portion being relatively perable to release theclamping pressure on the shoe.

5. A heel-seat forming machine having, in combination, a heel-seat forming die and a jack mounted for relative movement to form the heel-seat portion ofa shoe for the reception of a wood heel, said jack comprising a plate constructed'and arranged to support a limited-area insideof the shoe corresponding to the area to which pressure is applied by the die, said plate corresponding in width substantially to the lateral width of the inside of theshoe to prevent'lateral movement of the shoe relatively to the jack, a membermounted upon the jack for movement toward and away from the rear end of'th'e plate to engage the rear end of the shoe, and means normally urgingthe mem ber toward theshoe to clamp the shoeagainst the plate and prevent rearwardmovement of the shoe relatively to the jack.

6. A heel-seat forming machine having, in combination, a die, a jack mounted for movement relatively to the die to form a heel-seat portion of a shoe upon the jack, said jack comprising 'a plate constructed and arranged to support the shoeby engagement with a limited area of the inside of the shoe for facilitating the mounting of theshoe upon the'jack and the removal of'the shoe therefrom, and a member constructed and arranged for movement to engage and disengage the 'rearportion of the shoe for clamping it against the plate, said member also being mounted for movement at an angle to the direction of said movement to position it out of contact with the shoe and in an inoperativeposition.

7 A heel-seat forming machine having, in combination, a die and a jack mountedfor relative movement to form a heel-seat portion of a shoe positioned upon the jack, said jack being constructed and arranged to receive either a plate or a last pin carrying member to adapt the machine for off-the'last or onthelast work respectively, and a member constructed and arranged to engage the rear portion of the shoe to clamp it against the plate when the machine is operating on offthe-last work, said member also being, constructed and arranged to be ,swung outof contact with the shoe on the plate and into inoperative position when the machine is operating upon on-the-last work.

8. A heel-seat forming machine having,in combination, a die, a jack mounted for movement relatively to the die to form a heelseat portion of a shoe upon the jack, said jack comprising a plateconstructed and arranged to support, the shoe by engagement with a limited area of the inside of the shoe for facilitating the mounting of the shoe upon the jack and the removal of the shoe therefrom and to position the shoe upon the jack, and a spring-pressed member constructed and arranged yieldingly to engage-the rear portion of the shoe forclamping it against the plate during a portion of the heel-seat forming opera-tion, said member also being mounted for movement at an angle to the direction of said yielding movement forpositioning it out of contact with the shoe upon the plate during another portion of said operation.

9. A heel-seat forming machine, having, in combination, a die, a jack mounted for movement relatively to the die to form a heel-seat portion of a shoe upon the jack, said jack comprising a plate constructed and arranged to sup-port the shoe by engagement with a limited area of the inside of the shoe for facilitating the mounting of the shoe upon the jack and the removal of the shoe therefrom and to position the shoe upon the jack, a member mounted for movement toward and away from the plate and arranged to engage the shoe positioned on the-plate for clamping it against the same, and an adjustable stop between the member and the H jack, a'member mounted upon the jack and arranged for movement toward and away from the plate for engaging the rear portion of the shoe to clamp it against the plate, and a spring normally to urge the member toward the plate.

l1. A-heel-seat movement .relatively to the die to form a heel-seat portion of a shoe upon the jack, said jack including a plate constructed-and arranged to support the shoe by engagement with a limited area of the inside of the shoe for facilitating the mounting of the shoe upon the jack and the removal ofthe'shoe therefrom and to position the-shoe upon-the jack, amember mounted upon the jack and arranged for movement toward and away from the plate for engaging the rear' portion of the shoe to clamp it against the plate, and adjustable means to vary the extent of movement of the member toward the plate.

12. A heel-seat forming machine having, in' combination, a die and a jack mounted for relative movement to form a heel-seat portion of a shoe positioned upon the jack, said jack including a plateconstructed and arranged to serve as a support forthe' shoe against the forming pressure of the die, and a member mounted for movement toward and away from the plate substantially longitudinally of the jack and arranged for engaging the rear portion of the shoe positioned upon' the'plate to clamp it against the plate, said member also being mounted for movement laterally. of the jack to swing the member away from the plate. I

13. A heel-seat forming machine having, in combination, a die and a jack mounted for relative movement to form a heel-seat portion ofa shoe positioned upon'the jack, said jack including a plate constructed and arranged to serve as a support for the shoe against the forming pressure of the die, and a member mounted upon the jack and arranged for pivotal movementsubstantially. longitudinally of the jack toward and away from'the'plate for engaging the rear porforming machine having, in combination, a die, a ack mounted for tion of the shoeto clampit against the plate, said member also being mounted for movement substantiallytransversely of the jack to move the member away from the plate.

141A heel-seat forming machine having, in combination, a heel-seat forming die and a jack mounted for relative movement to'form theheel-seat portionoi a shoe for the recep-,

tion of a Wood heel and constructed and arranged to render the counter portion of the shoe, the heel seat portion of which isbeing subjected to pressure to form the'heelseat, readily'ac'ce'ssible for a pounding operation, said jack comprising a detachable plate con structed and arranged to support a limited area inside of the shoe corresponding to-the area to which pressure is applied by the die, said plate. corresponding in width substantially to the lateral width of the inside of the shoe to prevent lateral movement of the shoe relatively to the jack, the limited longitudinal extent of said plate facilitatingth-emounting of theshoe on the jackand its removal therefrom. i

'15. A heel-seat forming machine having, in combination, a die and a jack mounted for relative movement to" form aheel-seat portion of the sole upon the jack, saidjack comprising a plate similar tothe heel portion of I the inside of a shoe constructed and arranged to support the shoe by engagement with only the rear portion of the" inside of the shoe for facilitating the mounting of the shoe upon the jack and the removal of the shoe-therefromand" to position the shoe relatively to the jack, a member movable with the j ack and also mountedtor movement toward and away from the rear end of the plateand arranged for engaging'the shoe to clamp itagainst the plate to prevent lengthwise movement'ofthe shoe relatively to the jack, and-a spring arranged to urge the member toward theplate.

16-. A heel-seat forming machine having, in combination, a die, a jack mounted for movement relatively to the die to form a heel seat portion of the shoe upon the jack, said jack comprisinga plate constructed and arranged to support the shoe by engagement with only the rear portion of the inside of the shoe for facilitating the 1 mounting of the shoe upon the jack and the removal of the shoe therefrom, and a member mounted upon the jack and arranged for movement toward and away from the plat'e'for engaging the i A posiits 7 structed and arranged to'support the shoe by engagement with a limited area of'the inside of the shoe for facilitating the mounting of the shoe upon the jackand the-removal of the shoetherefrom and also to position the shoe upon the jack, said plate having a notched pin to enter the jack and a spring latch to engage the notch in the pin to hold the plate in place. V

18. A heel-seat forming machine having, in combination, a die and a jack mounted for relative movement to'form a heel-seat portion of a shoe positioned upon the jack, saidjack being adapted to receive interchangeably one of a plurality of plates for fitting the heel portions of'insoles of shoes of differentsizes and shapes, each of the plates being constructed and arranged substantially to fitthe heel portion of the inside of the shoe and to support the-shoe byengagement with only the rear portion ofthe inside ofthe shoe for facilitating the mounting of the shoe upon the jack and theremoval of 'theshoe therefrom and each of said plates having-a plurality of pins for entering holes in the jack, the jack having pressure released means engaging one of the pins for retaining the plate upon the jack.

19. A heel-seat forming machine having, in combinatiorna die and a jackmounted for relative movement to form a heel-seat portion of a shoe ofi the last and positioned upon the jack,said' jack being constructed and arranged to receive either aplate or a last-pincarrying member toadapt the machine for oil-the-last or on-the-last work, respectively, and a member mounted for movement lengthwise ofthe shoe for engaging the'rear portionof the shoe to clamp it against-the plate when the machine is operating on ofi-the-last work, said member also being mounted for movement laterally of the shoe for swinging the member away from the shoe and into inoperative position when the machine is operating on on-thedast work.

20. A heel-seat formingmachine having, in combination, a die and a jack mounted for relative move-ment to form a heel-seat portion of a shoe ofi the last and positionedupon-the jack, said ack being adapted to receive interchangeably one of a plurality of-plates, each of the plates being constructed and arranged to serve as a support for the shoe against the pressure of the die and to prevent lateral movement of the shoe relatively to the jack,

' and a member mounted for movement with the jack and also mounted for movement toward and away from the jackfor engaging the rear portion of the shoe and also mounted for movement laterally of the shoe tomove the member into inoperative position during a portion of the heel-seat forming operation.

21. A heel-seat forming machine having, in combination, a die, a jack mountedfor movement relatively to the die for forming the heel-seat port-ion of a shoe positioned upon thej-ack, said jack being adapted to receive interchangeably one of a plurality of'pla-tes each of which is constructed and arranged to support the shoe against the pressure of the die and prevent lateral movement of the shoe relatively to the jack and also being con structed andqarranged to receive alaste-pincarrying member to adapt the machine for on-the-last work, and a clamp member mounted for movement for engaging the shoe to hold it against the plate when the machine is operating on off-thelast work, said member also being mounted for movement later- .ally of the shoe upon the jack to swing the memberinto inoperative position when the machine is operating upon on-the-last work.

*22. A heel-seat forming machine having, in combination, a die for forming the heel seat of a shoe for the reception of the cup of a 'WOOd heel anda-jack mounted for relative movement to form the heel-seat of the shoe positioned upon the jack, said die and said jack being constructed and arranged to render the counter portion of the shoe, the heel seat portion of which is being subjected to pressure to form the heel seat, readily accessible for a pounding operation, said jack comprising a block constructed and arranged to be positioned upon the jack and to be removed therefrom, and a plate carried by the'block and constructed and arranged to correspond tothe peripheral dimensions of the heel portion of the inside of the shoe, said block being constructed and arranged to receive interchangeably plates of difl'erent" sizes and shapes. 7

' 23. A heel-seat forming machine having, in combination, a heel-seat forming die and a jack mounted'for relative movement to form a heel-seat of a shoe positioned upon the jack, said jack comprising a block constructed and arranged to be positioned upon the jack and to be removed therefrom, a plate carried by the block and constructed and arranged to engage the heel portion of'the inside of the shoe, and a member carried by the jack and constructed and arranged to engage the rear end of the shoe for retaining the shoe in position upon said plate. A s

a '24. Aheel-seat forming machine having, in combination, a heel-seat forming die and a jack mounted for relative movement to-form a heel portion of a shoe positioned upon the jack, said jack being constructed and arranged toreceive either a plate or a last-pin carrying member to adapt the machine for ofii-the-last or on-the-last work, respectively, and a member constructed and arranged to engage the rear portion of the shoe to clamp it against the plate when the machine is operating on ofi-the-last work, saidmember being constructed and arranged for movement widthwise of the shoe out of contact with the rear portion of the shoe and into in operative position.

25; A heel-seat forming machine having, in combination, a heel-seat forming die and a jack mounted for relative movement to form the heel-seat portion of a shoe for the recep= tion of a Wood heel, said jack comprising a plate constructed and arranged to supporta limited area inside of the shoe corresponding to the area to which pressure is applied by the die, said plate corresponding in width substantially to the lateral Width of the inside of the shoe to prevent lateral movement of the shoe relatively to the jack, a member pivotally mounted on the jack for movement about an axis extending lengthwise of the plate, and a lever pivoted to the member for swinging movement toward and away from the rear end of the plate to clamp the rear end of the shoe against the plate and prevent rearward movement of the shoe relatively to the plate While the die and jack are being relatively moved to form the heeLseat,

the member and lever being movable about the axis of the member to dispose the lever in an inoperative position.

In testimony whereof I have signed my name to this specification.

EARL A. BESSOM.

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