US1129074A - Holddown. - Google Patents

Description

C. B. COUNCIL.

HOLDDOWN.

APPLIOA'HON FILED MAY 17, 191s.

LMQMM. Patented Feb. 23, 1915.

MTA/5555- rana rrr.

GONNIE B. COUNCIL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO UNITED SHOE lVACl-IINERY-COMPANY, OF PATERSON, NEW JERSEY, Ak CORPORATION 0F NEW JERSEY.

HOLDDOWN.

Application flied May 17, 1913.

T0 all whom ,it may concern: j

Be it known that I, CoNNIn B. COUNCIL, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain Improvements in Holddowns, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to lasting machines of the bed type and particularly to work holding mechanism for such machines. In these machines in which the shoe is supported in inverted position it has been found necessary to provide means to engage the shoe bottom for clamping it down upon the toe rest and it is also important to hold the toe end of the innersole down upon the last bottom to prevent it from being displaced during the toe lasting operation. For these purposes there has been provided a hold-down mechanism comprising a clamping member adapted to engage the shoe unyieldinglv over the ball portion of the last and a finger extending forwardly therefrom into position to hold the toe end of the innersole down upon the last bottom.

The spring of the last, that is the longitudinal inclination of the forep'art of the last (see Figures 3 and 4 of the annexed drawing) causes a wide variation in the relative vertical positions of the last bottom at the ball of the last and at the toe and therefore the toe holding fingers have been made of resilient metal in order to `adapt them to hold ldown an innersole on a last that has considerable spring and yet yield sufficiently to perform that function on a last having less spring. In has proven diicult so to construct and mount the innersole holding fingers that they will yield suiiiciently for the purposes above pointed vout and yet hold the innersole down firmly, and, as a result, the fingers in common use break frequently and such breakage is a source of considerable expense.

It is an object of this invention so to improve hold-downs as to reduce or eliminate this breakage of ingers and also to provide a hold-down by means of which a substantially uniform holding pressure 'can be obtained at the toes of lasts having different degrees oit-spring.

Specification of Letters Patent.

Patented Feb. 23, 1915. Serial No. 768,265.

An important feature of the invention `construction for securing this adjustment.

As herein shown the carrier and the connector are provided with interlocking teeth and said carrier and connector are relatively movable against the resistance of a holding spring for disconnecting the teeth to permit the adjustment after which the holding spring draws the teeth into locking engagement and holds them against accidental disengagement.

Fig. 1 is a perspective view of so much of a lasting machine and hold-down mechanism equipped with this invention as is necessary for an understanding of the new features;` Fig. 2 is a longitudinal vertical section through the hold-down carrier and the connector; FigsB and 4 are end elevations and show different positions of ad-v justment of the hold-down foot to fit lasts having different degrees of spring.

The hold-down supporting and operating means is substantially that shown and described in British Patent No. 19,512/11 and comprises a post 2 carrying a block 4: upon which is mounted for sliding adjustment transversely of the shoe a carrier arm 6. The block can turn and the carrier 6 swing about the longitudinal axis of the post 2 to bring the hold-down into and out of operative position over the shoe.

j The hold-down foot, which comprises the clamping member 28 adapted to engage the slice over the ball of the last and the forwardly projecting finger 8, is adjustably secured to the carrier 6 by a connector 10 having a stem 12, Fig. 2, extending longitudinally through the carrier 6, the right-hand end portion 14 of the stem being reduced in diameter and extending into a spring chamber 16 at the right-hand end of the carrier. In the chamber 16 is a spring 20 which, encirclingvthe stem 14 and abutting against the end wall of its chamber,

is maintained under compression by a washer 22 and pin 24 so that it holds the connector yieldably pressed endwise toward the carrier.

The connector 10 and the adjacent end of the carrier 6 are provided with teeth 4Q held in interlocking engagement by the spring 20 which, however, permits the connector to be forced toward the left in Figs. 1 and 2 and turned in a vertical plane to adjust the inclination of the finger for adapting it to the spring of the last upon which it is to be used, see Figs. 3 and Ll.

The last clamping member 28 of the holddown is the enlarged lower end of a stud 26 which extends upwardly into the connector 10 and is retained in place therein by a plunger 30 backed by a spring' 32. The reduced forward end 3l of the plunger` constitutes a locking pin extending into the stud 26 and accessible through an opening 3G in the end of the connector where it may be engaged by a small instrument to unlock the stud. A spring washer 38 assists in retaining the finger 8 against loose turning movement on the stud 2G and said washer has a lforward extension provided with upwardly turned lips 40 to embrace the finger.

Anv other mechanical construction suitable for securing the general or the specific objects of this invention may be employed in place of the construction above described.

In the contemplated use of the machine equipped with this invention an operator will observe the amount of spring of the last with which he is to deal and if readjustment lis reouired he will seize the connector 10 and draw it toward him, thereby compressing the spring 20 until the teeth 42 on the connector are disengaged from the teeth on the carrier 6, after which he will turn the connector in a vertical plane to raise or lower the front end of the finger 8. 1f the finger is a resilient one he will so adjust the finger that when the hold-down is lowered into engagement with the shoe the finger will contact with the toe portion of the inner-sole a little before the clamping member 28 engages the ball ot' the shoe. Vhen the desired position of the finger has been obtained the spring 20 is allowed to draw the teeth of the connector into looking engagement with the teethof the carrier 6 thereby securing the hold-down foot in adjusted position.

Having explained the nature of this invention and described a preferred construction embodying the same. 1 claim as new and desire tosecure by Letters Patent of the United States l. A hold-down for lasting machines having, in combination, a carrier adapted to extend transversely over the shoe bottom, a holddown foot comprising a clamping member to engage the shoe bottom over the ball of the last and a forwardly extending inger to hold the toe portion of the innersole down upon the last bottom, a connector having a stem extending into the carrier, a spring in said carrier acting through said stem to hold the connector yieldingly against the end face of the carrier, and interlocking substantially rectangular teeth on the butting faces of the carrier and the connector to hold the connector in angular adjustments about the axis of its stem.

2. A hold-down for lasting machines having, in combination, a carrier adapted to extend transversely over the shoe bottom. a hold-down foot comprising a clamping member to engage the shoebottom over the ball of the last and a forwardly extending finger to hold the toe portion of the innersole down upon the last bottom, a connector adjustable on the carrier about an axis extending lengthwise of the carrier, interlocking teeth formed on the adjacent end faces of the carrier and connector, and a spring normally holding the connector with its teeth in interlocking engagement with the teeth of the carrier and permitting movement of the connector away from the carrier for disengaging said teeth.

3. A hold-down for lasting machines having. in combination, a carrier adapted to extend transversely over the shoe bottom, a support for said carrier located entirely on the rear side of the machine, a holddown foot attached to the front end of the carrier and comprising a clamping member to engage the shoe bottom over the ball of the last and a forwardly extending linger to hold the toe portion of the innersole down upon the last bottom, said finger being attached to the carrier for rotation on the carrier about an axis extending transversely of the shoe, and means for fastening the finger in different positions of angular adjustment about the said axis to accommodate lasts of different spring.

4. A hold-down for lasting machines having, in combination, a carrier adapted to extend transversely over the shoe bottom, a support for said carrier located entirely on the rear side of the machine, a holddown foot attached to the front end of the carrier and comprising a clamping member to engage the shoe bottom over the ball of the last and a forwardly extending finger to hold the toe portion of the innersole down upon the last bottom, and means permitting adjustment of the hold-down foot angularly in a vertical plane to position the iinger for the spring of the last. said means having provision for fixing the finger in definite positions of adjustment.

5. A hold-down for lasting machines having, in combination, a carrier adapted to extend transversely over the shoe bottom, a support for said carrier located entirely on the rear side of the machine, a hold-down foot attached to the front end of the carrier and comprising a clamping member to engage the shoe bottom over the ball of the last and a forwardly extending finger to hold the toe portion of the innersole down upon the last bottom, and a connection between said foot and the carrier constructed and arranged to permit turning movement of the foot in a vertical plane Jfor positioning the inger for the spring of different styles of lasts. v 6. A hold-down for lasting machines having, in combination, a carrier adapted to extend transversely over the shoe bottom, a support for said carrier located entirely on the rear side of the machine, a holddown foot attached to the front end oi the carrier and comprising a clamping member toy engage the shoe bottom over the ball of the last and a forwardly extending finger to hold the toe portion of the inner sole down upon the last bottom, said foot being connected adjacent to said clamping member to the carrier to permit angular movement of the finger relatively to the carrier in a vertical plane to adapt the position of the foot to the spring of the last.

7. A hold-down for lasting machines having, in combination, a carrier extending over the shoe bottom, a connector mounted yfor rotation upon the carrier, a finger adjusted positions oi' rotation relatively to the carrier.

8. A hold-down for lasting machines comprising a carrier 6, a connector 10 having a stem 14 journaled in the carrier, teeth 16 formed respectively on the carrier and the connector, means maintaining the teeth normally in holding engagement with each other, and a finger 8 mounted on said mnnector.

9. A hold-down for lasting machines having, in combination, a hold-down foot pivoted upon the carrier for angular ad- .iustment in a vertical plane and having a bearing upon the ball of the shoe beneath said pivot and a separate bearing upon the toe of the innersole near the front end of" the foot, and means for adjusting the foot as a whole to equalize the pressure applied to the shoe by said separated bearings.

In testimony whereof I have signed my .name to this specification in the presence of two subscribing witnesses.

CONNE B. COUNCIL.

/Vitnesses:

ALEX. `WALTER, GEORGE H. HoaNsY.

Copies of this patent may be obtained for ve centseach. by addressing the Commissioner of Patents,

Washington, ID. C.

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