US123681A

US123681A - Improvement in machines for flinting and glazing leather

Info

Publication number: US123681A
Authority: US
Publication date: 1872-02-13
Anticipated expiration: 1889-02-13

Description

GEORGE CROSSLEY.

improvement in Machines for Flinting and Glazing Leather. No. 123,681. Patented Feb.13,'1872.

UNITED STATES A'I'ENI' OFFICE.

GEORGE GROSSLEY, ()F PHILADELPHIA, PENNSYLVANIA.

Specification forming part of Letters Patent No. 123,681, dated February 13, 1872.

SPECIFICATION DESCRIBING A MACHINE Eon FLINTING AND GLAZING MoRoCCo. To whom, it may concern:

Be it known that I, GEORGE OROSSLEY, of

p the city of Philadelphia and State of Pennsylvania, have invented a certain new and useful combination of mechanic appliances or instrumentalities for imparting reciprocal horizontal rectilinear movements to a tool-bearing suspensory or vibratory bar; and do hereby declare the following to be a full, clear, and exact description thereof, due reference being had to the accompanying drawing making part of this specification, and in which verselevers attached to a fly-wheel by means of a double crank with slotted plate in such amair ner as to produce vibratory reciprocatingmovements of its lower extremity, thereby simultaneously elevating and depressing alternately the plunger or tool-bearer in its passage back and forth across an underlying plane or tablet.

In principle my invention is obviously susceptible of application to various new and useful purposes in mechanic arts; but, inasmuch as my experiments in perfecting it have been chiefly confined to the ascertainment of its peculiar adaptability for serviceable use in the fiinting and glazing of morocco, I have thought it best, for sake of certainty and definiteness,

' to limit my description to the purpose to which I have practically demonstrated it can be successfully applied.

In the drawing accompanying and makingpart of this specification, A denotes a vertical bar or vibrator suspended by a roller, 1), resting on guides B, and having attached to its lower extremity the plunger or tool-bearer holding the agate or polishing-stone c. O and- D are levers attached, by a double crank, F, to fly-wheel E, which, by its rotation, together with the combined simultaneous and reciprocal movements imparted by the double crank F to the lever D acting on the plunger 01/ by means of the fulcrum at d, causes the attached agate or polishing-stone c to be brought forcibly in contact with and to exert a downward pressure on the horizontal tablet e e e 6 while passing from H to G, and to be so lifted as to intermit such pressure while returning from G to H. The buck-horse or tablet, on which the skin to be operated upon is placed, is shown in the drawing at I. Its mechanism is so simple that an extended description is deemed needless, it being operated by a single sliding bar, K, which can be raised or lowered by setscrews 70 k, to any desired elevation suitable for the effective operation of the agate or polishing-stone on the morocco. The slotted plate, of which two views are given in Fig. 3, is attached to the wheel E by means of a stud-pin, f, serving as a shackle-pin for the lever D. It is also provided with a shackle-pin, 9, so fitted to the slot as to be movable along it at the will of the operator, this shackle-pin being for the purpose of attaching the lever G to the wheel E. The slotted plate being secured to the wheel E at a tangent to its circumference, it will readily be perceived that, by sliding the shackle-pin along the slot, its distance from the center of the wheel E-that is, from the primary point of motion-may be increased or diminished, and that such change of leverage, acting upon the vibratory bar A through lever G, will produce such movements of said vibratory bar and the various instrumentalities connected therewith, as has been described.

I claim The double crank F F and compound lever D a, or their equivalents, in combination with the fly-wheel E for the purpose of imparting reciprocating motionto a suspensory and intermittent progressive rectilinear pressure to the tool, as and for the purpose specified.

GEORGE OROSSLEY.

Witnesses:

J osEPH KENWORTHY, THEO DmDRICHs.