US293370A - stedm-an - Google Patents

stedm-an Download PDF


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US293370A US293370DA US293370A US 293370 A US293370 A US 293370A US 293370D A US293370D A US 293370DA US 293370 A US293370 A US 293370A
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    • B23G1/00Thread cutting; Automatic machines specially designed therefor
    • B23G1/16Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
    • B23G1/18Machines with one working spindle
    • B23G1/185Machines with one working spindle specially adapted for making nuts


No-Model. 2 Sheets-Sheet 1.
M. STEDM-AN. cowmlm FOR NUT MACHINES. v No. 293,370. Patented Feb. 12,1884.
6L I I K PETERS. Plmlo-ljlhcgnpher. Washwgton. 0, C.
(No Model.) 2 Sheets-Sheet. 2.
GONVEYER FOR NUT MACHINES. No; 293,370." V Patented ]E & b.12,1884=.v
, UNiTnD Snares arena Prion.
SPECIFICATION forming part of Letters Patent No. 293,370, dated February 12, 1884 Application filed May 12, 1883. (No model.)
To all whom it may concern:
Be it known that I, MORTIMER D. STEDMAN, a citizenoftheUnited States, residing at Unionville, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Conveyers for Nut- Machines, of'which the following is a specification. 7
it My invention relates to improvements in conveyers or transferrers in a nut-machine for carrying the nut, after it is blanked out, to the punching and hammering mechanism; and the objects of my invention are to do this work in a simple and efficient manner, and so that the blank shall be accurately and positively seated in its proper position within the hammeringdies. I attain these objects by means of the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a plan view of my conveyer and its operating mechanism, together with a sketch of the hammering mechanism in proper relative position thereto, the same being shown with the conveyer in that position in which it is found when it receives the nut-blank from the shears or punching-dies. Fig. 2 is a like view of the same parts with the conveyer in the position in which it is found immediately after depositing the nut-blank in the hammering mechanism. Fig. 3 isa side elevation of my conveyer; and Fig. {l is another elevation of the same, looking toward the end of the conveyer-arms.
a a designate the movable hammers, and b b designate the anvils of the hammering mech* anism. These are arranged over a suitable bed in any well-known manner, except that one-of the hammers is represented as curved instead of straight; but this feature is not in tended to be incorporated in this application.
" For the purposes of my invention it is only necessary that one of the hammers shall have such a movement that when it retreats it will Extending through the same bed of the machine upon which the hammering mechanism is placed I arrange the shaft A by the side of said hammering mechanism. Upon the lower end of this shaft and under the bed I arrange the pinion B, and by the sideof the same, and
swinging movement is limited by means of the ledge 01 upon the end of the arched arm 6. The outer end of the arm 0 is providedwith a table for receiving the nutblank, and upon either side thereof are the pivoted jaws ff, having an. overhanging upper edge, as most clearly shown in Fig. 3. A small spring, 9, Fig. 8, is placed between the lower ends of these jaws, to press their upper ends inward continually. As shown, these jaws and the table between them are made of sufficient length to receive the nut-blank 71, although said jaws may not be stopped directly under the punching-die, orin case the nut-blank should not fall squarely upon them as it is fed from said die. The nutblank is pushed down from the shear or blanking-dies into and between the jaws with sufficient force to overcome the power of the spring and open the jaws. passes the overhanging upper edges of the jaws, they snap together again. After the nutblank has been thus deposited within said jaws, as shown in Fig. 1, the rack '0 moves in one direction to carry the arms 0 and D around into the position shown in Fig. 2.' In moving into this position the parts move together, as shown in Fig. 1, until the forward ends of the jaws f f come in contact with the hammering mechanism. The movement of the arm 0 is arrested by said contact; but the movement of the arm D continues for a while longer, there by carrying the end of the knock-out arm in between the jaws f f and up against the hammering mechanism, thereby pushing the nut out from between the jaws into position to be hammered, as shown in Fig. 2. The rack C then moves in the opposite direction, to carry the parts back to their former position. Just before the rack C completes its stroke, the arm 0 comes in contact with the stop m, or other suit able stop upon the bed of the machine, and ar rests the motion of the arm 0 until the arm 1) As soon as the nut-blank has been withdrawn therefrom, as shown in Fig. 1. Y
I claim as my invention 1. The combination of the conveyer-arm D, having knock-out k, said arm being rigidly secured to its driving-shaft, the arm 0, carrying holding-jaws and loosely mounted on the same driving-shaft, and mechanism for oscillating the shaft upon which said arms are mounted, substantially as described, and for the purpose specified.
2. In a conveyer, the combination of the pivoted jaws ff, the table between said jaws, the knock-out arm 70, and their operating mechanism, substantially as described, and for the purpose specified.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509123A (en) * 1944-09-18 1950-05-23 Detroit Power Screwdriver Comp Nut runner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509123A (en) * 1944-09-18 1950-05-23 Detroit Power Screwdriver Comp Nut runner

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