US364726A

US364726A - muiahead

Info

Publication number: US364726A
Authority: US
Publication date: 1887-06-14
Anticipated expiration: 1904-06-14

Description

(No Model.) 2 Sheets-Sheet 1.

R. B. MUIRHEAD.

STOPPING MECHANISM FOR GIRGULARKNITTING MAGHINES. No. 364,726. Patented June 14, 1887.

N. PETERS, Photvlilhcgnpher, Wahlngm h DC.

(No Model.) 2 Sheets-Sheet 2.

R. B. MUIRHEAD. STOPPING MECHANISM FOR CIRCULAR KNITTING MACHINES. N0. 362,26. Patented June 14, 1887.

N4 PETERS. vhmmmnmr. Wabhinglon, n a

UNITED STATES.

PATENT OF ICE.

RICHARD B. MUIRHEAD, OF OATSKILL, NEW YORK.

STOPPING MECHANISM 'FOR CIRCULAR-KNITTING MACHINES.

SPECIFICATION forming part of Letters Patent No. 364,726, dat'edd'une 14, 1887. Application filed September 14, 1886. Serial No. 213,5l0. (No model.)

To aZZ whom it may concern:

Be it known that I, RICHARD B. MUIRHEAD, a citizen of the United States, residing at Catskill, in the county of Greene and State of NewYork,haveinvented certain newand useful Improvements in Knitting-Machines; and I do declare thefollowing to be a full, clear,and exact description of theinvention,snch as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

The special object of the invention is to connect the stop-motion and quarter-saving mechanism of a knitting-machine, so that the former will be indirectly operated by the latter, through intervening mechanism, substantially as hereinafter described.

Figure 1 of the drawings is an elevation in perspective of a circularknitting machine provided with my invention. Fig. 2 isaplan view partly in section. Fig. 3 is a bottom view with the pulleys in section, and Fig. 4 a section on line at m of Fig. 2.

In the drawings, A represents the cylinder of a circular-knitting machine, B the post which supports the quarter-saver, and G the hollow post in which the stop-motion shaft d turns, said shaft being stepped-in a bed, (1. This shaft (Z has an arm,cZ, under which is held trip-lever E, whose bent end cholds out the arm F against the spring f, said arm being made fast at one end to a shaft, G, which turns in the bed H and carries on the under side thereof the beltshifter I. .J is the fast pulley and J the loose pulley, by one or the other of which the belt is always carried. This stop-motion is not of my invention. Krepresentsa thread which passes through the guide-eyes 70 7c and over an intermediate rest 7c on its wa to the knitting-machine, andas long as the feed progrosses without any break in the thread the other arm n cannot touch the cylinder A; but when the thread breaks the wire L drops, the catch-pin ceases to support the arm n, and the arm n is swung, by the action of spring a upon pin 71/ on the shaftN, into frictional contact with the cylinder. The arm n is then carried by the cylinder, so as to turn theshaft N. This quarter'saver mechanism is no part of my invention; hence it will be perceived that I admit that the feed, quarter-saver, and stop-motion are all old and well-known to those acquainted with this branch of art. What I have done,and believe to be essentially new, is as follows: On the stop-motion shaft (Z I make fast a cylinder, D, and provideit with the right-angled arm (Z which is jointed atp to a rod, P. O is a second rod, connected with the rod]? by a block, Q, in which both are made adj nstable by set-screws Q, so as to suit knitting-cylinders of different diameters. On the quartersaver shaft N,I make a right-angled hook-arm, n", which is jointed to the arm 0. As soon as the shaft N .of the quarter-saver is turned the arm a through the rods 0 P, turns the arm d and with it the stop-motion shaft (Z, so as to occasion the throwing of the driving-belt upon the loose pulley. This stops the machine.

\Vhat I claim as new, and desire to protect by Letters Patent, is- 4 The combination, with the needle'cylinder and the shaft carrying the stop-motion cylinder D, and having the arms d" (Z of the beltshifting mechanism E F G I, the frame having guideeyes k and restk',the wire L, having the journaled T-head Z, with its catch-pin Z, the shaft N, having the arms at n and rightangled hook-arm a", the spring which rocks said shaft, the rod 0, having the loop 0, the rod 1?, having the end hook, p, and the e011- necting-piece Q, said hook connecting with the eye of the rightangled arm (Z as shown and described.

, In testimony whereof Iaffix mysignature in presence of two witnesses.

' r RICHARD B. MUIRHEA'D. Witnesses:

' ALFRED COX,

vW. H. FULLER.