US548225A - Shank—Stiffener Machine - Google Patents

Shank—Stiffener Machine Download PDF

Info

Publication number
US548225A
US548225A US548225DA US548225A US 548225 A US548225 A US 548225A US 548225D A US548225D A US 548225DA US 548225 A US548225 A US 548225A
Authority
US
United States
Prior art keywords
shank
strip
machine
shaft
shanks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Other languages
English (en)
Inventor
Nelson C Ruberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of US548225A publication Critical patent/US548225A/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers

Definitions

  • NELSON O. RUBERG, OF EAST BRIDGEWATER, MASSACHUSETTS.
  • My invention has for its object to provide an improved machine for manufacturing metal shank-stiffeners for boots or shoes.
  • Metal shank-stiffeners, or shanks, as they are commonly called, are formed from astrip of metal which is curved lengthwise and which is usually provided near each end with a hole, by means of which the shank may be secured in place.
  • These shanks have been produced by machines; but the machines employed so far as known to me are either slow in operation or difficult to keep inadjustment and repair.
  • my improved machine the operation of manufacture is continuous and shanks are produced with greater rapidity and more continuously than on any machine now known to me and at less cost.
  • Figure 1 is a side elevation of a machine embodying my invention.
  • Fig. 2 is a plan view of the same.
  • Fig. 3 is a detail hereinafter referred to.
  • Fig. 4 is a view of the machine in transverse section.
  • Fig. 5 is a detail of the knives.
  • A is the frame of the machine, which may be of any suitable form.
  • B is a shaft which is journaled in the upper part of the frame, and which is provided with belt-pulleys O and a balance-wheel D.
  • the hub of the balance-wheel D is provided with a slot, (shown atf, Fig. 1,) in which is placed a sliding block, which may be set and secured at any point in the slot.
  • the sliding block is provided with a crank-pin, to which is pivoted aconnecting-rod g, which at its lower end is pivoted to an arm h, which is loosely mounted on the end of the shaft 3'.
  • the shaft j is provided with a ratchet-wheel k, which is fast thereon, and is also 'provided with a gear I, which is in mesh with an intermediate gear m, set on a stud on the side of the frame.
  • the intermediate gear 111. is in mesh with the gear 11. on the shaft of the lower feed-roll n, which is journaled in the frame of the machine and which is connected with the shaft of the upper feed-roll n by gears, one of which is shown at p.
  • the shaft j carries the lower bending or forming roll (1 and the shaft of the upper forming-roll d is geared thereto by means of gears, one of which is shown at q.
  • the arm h is reciprocated and the ratchet k is turned at each reciprocation by means of the pawl 0", which is mounted on the arm h and which is held in the usual manner in contact with the ratchet-teeth.
  • Thisintermittent ro tary movement of the'shaftj is communicated through the connectinggears to the feed-rolls, and the strip of metal t, from which the shanks are cut, is therefore fed forward intermittently.
  • the strip 15 is of a width equal to the length of the shank desired, and the shanks are formed therefrom by transverse cuts in the well-known manner.
  • the strip t leaves the feed-rolls it passes under punches t, which are mounted in a cross-head 2?, arranged to slide vertically asthe shaft w rocks by means of eccentrics w on said shaft in the wellknown manner.
  • the shaft w is caused to rock by means of an eccentric a on the main shaft B, with which the said shaft to is connected by means of a connecting-rod b, which is pivoted between arms 0', which are rigidly secured to said shaft w.
  • the strip of metal from which the shanks are cut is comparatively thin, the necessary vertical movement of the punches is small.
  • the punches 15' are so set with reference to the strip t as to form holes in the strip at any point desired.
  • the holes are usually placed near the sides of the strip 25, so that they will be near the ends of the finished shanks, and are so spaced that they will be in the center of each shank formed.
  • the strip t is supported underneath the punches by asuitable bed or cross-piece i secured in the frame.
  • the feed-rolls are so timed as to feed forward the strip at each movement a distance equal to the width of the shank which is being cut.
  • the punch-operatingmechanism is to timed that when the strip has been fed forward and has stopped the punches descend and out the holes. After the strip has passed the punches it passes between the forming-rolls, the upper of which is shown at (1'.
  • One of the forming-rolls is a convex roll and the other thereof is a concave roll, as shown, and the lengthwise curve of these rolls may be varied and will depend, as will be obvious, upon the amount of lengthwise curve desired in the shank.
  • a vertically-reciprocating knife of the usual construction having acurved cutting-edge, as shown in Fig. 5, is provided and is mounted on a cross-head i which slides vertically between the upright portions of the frame and which is given its vertical reciprocating movement from eccentrics, which are shown atf, Fig. 2.
  • the knife 25 co-operates with the stationary straight-edged lower knife 15.
  • I knife is so timed as to sever the shanks from the strip ziwhile the strip is at restthat is, at each forward feed movement a shank is cut, and at the same time the punches are operated to punch asucceeding shank.
  • the shafts of the feedrolls may be journaled in movable blocks a Fig. 3, which are pivoted to studs secured to the frame, as shown, and which may be swung back and down by unloosening a securing device, (indicated at b and which serves to hold the blocks a in position when the machine is in use.
  • the punches are located in front of the forming or bendingdies. This is an important feature of the machine, since it allows the punches to be set at any distance from the edge of the strip t and yet do their work etfectively, and consequently permits the securing-holes to be cut at any desired distance from the end of the shank.
  • the punches should strike it at right angles to its surface or substantially so. If they were located behind the bending-rolls and were set in from the edges of the strip, they would strike the surface of the bent strip obliquely and would not perform their work effectively or well.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
US548225D Shank—Stiffener Machine Expired - Lifetime US548225A (de)

Publications (1)

Publication Number Publication Date
US548225A true US548225A (de) 1895-10-22

Family

ID=2616968

Family Applications (1)

Application Number Title Priority Date Filing Date
US548225D Expired - Lifetime US548225A (de) Shank—Stiffener Machine

Country Status (1)

Country Link
US (1) US548225A (de)

Similar Documents

Publication Publication Date Title
US1925034A (en) Prick punching machine
US548225A (de) Shank—Stiffener Machine
US524501A (en) Gore-cutting machine
US296288A (en) jaeg-er
US1000144A (en) Fin-forming machine.
US373943A (en) parker
US700141A (en) Button-fly-scalloping machine.
US641177A (en) Machine for forming and driving staples.
US373458A (en) Machine for making spur-wheel fencing
US1410785A (en) Weather-strip-forming machine
US367397A (en) Machine for staying paper boxes
US390975A (en) jordan
USRE8163E (en) Improvement in machines for making metallic shoe-shanks
US222023A (en) Improvement in paper-collar machines
USRE5197E (en) Improvement in machines for making metallic shoe-shanks
US452076A (en) Machine for making and printing tags
US138264A (en) Improvement in machines for cutting out planchets of sheet metal
US1201308A (en) Machine for making partitions for boxes.
US382357A (en) gennebt
US300379A (en) Machine foe making shane stiffeiers
US803080A (en) Welt-cutting machine.
US1375935A (en) Leather-working machine
US570088A (en) Veneer-dish machine
US504311A (en) Pegging-machine
US599952A (en) Machine for making toe-calks for horseshoes