US410966A

US410966A - fitch

Info

Publication number: US410966A
Authority: US
Publication date: 1889-09-10
Anticipated expiration: 1906-09-10

Description

(No Model.) 3 Sheets-Sheet I. A. S. FITCH.

MAGNETO ELECTRIC MACHINE.

No. 410,966. Patented Sept. 10, 1889.

WI T NESSES I J IN VENT 0R W X Ma da r/- 0 m (No Model.) 3 showy-Sheet 2.

A. S1FITCH. v MAGNETO ELECTRIC MACHINE. No. 410,966. Patented Sept. 10, 1889.

INVENTOR WITNESSES I l I I I-(LduLu'.

u TENS, FhoIn-Lnhcgnpher, Wilmington. 04 c.

3 Sheets-Sheet 3.

A. s. PITCH. MAGNBTO ELECTRIC MAGHINE.

(No Model.)

No. 410,966. Patented Sept. 10, 1889 INVENTOR WITNESSES:

N. PETERS. Phulo-Uthcgraphnr. Waflhmglon, D: c.

UNITED STATES PATENT OFFICE.

ARDEN S. FITCH, OF NEWV YORK, N. Y.

MAGNETO-ELECTRIC MACHINE.

SPECIFICATION forming" part of Letters Patent No. 410,966, dated September 10, 1889.

Application filed August 21, 1889. Serial No. 321,482. (No model.)

To all whom it may concern:

Be it known that I, ARDEN S. FITCH, of the city, county, and State of New York, a citizen of the United States, have invented certain new and useful Improvements in Magneto- Electric Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to magneto-electric machines of the class used in generating an electric current for firing fuses in blasting operations, and more particularly to the magneto-electric machine of this class for which I filed application for Letters Patent on June 20, 1889, Serial No. 314,949.

The object of my invention is to provide an effective and convenient means of actuating the device within the inclosing-case of the machine which operates to rotate the rotary armature to generate the current.

My invention consists in the combination, with the armature-operating device adapted to swing or rotate in its movement to operate the armature, of a bar adapted to be seated in or upon the armature-operating device and to slide or move longitudinally transversely thereof or therein, whereby when the machine is inclosed in its case or box the bar, by its movement transversely of and in or upon the armature operating device, may be caused to pass within and be practically inclosed in the box, so that when the machine is not in use it is thus in convenient portable condition, and whereby when it is desired to use the machine to generate an electric current the bar may be readily moved or drawn longitudinally in or upon the armature-operating device transversely thereof and through and caused to extend or project e-Xteriorly of a wall of the box, so that it may be grasped by the operator and vibrated to effect the desired movement of the armature-operating device to rotate the armature, all as hereinafter particularly described, and as more at length recited in the claims.

Figure 1 is a plan of a magneto-electric ma chine containing my invention. Fig. 2 is a vertical central section of the armature-operating device and its connected mechanism and showing my invention, and Fi 3 is an end elevation of the machine.

M represents the magnet; N, the rotary an mature having a pinion a on its arbor.

A is the armature-operating device, which in this machine is, as shown, in the form of a toothed segment j on rnaled on a stud or shaftpin a. This segment is shown as engaging a pinion a, which in turn, by means of a clutch composed of a ratchet a and pawl a communicates motion in one direction only to a gear a which engages the armature-pinion a. on its shaft or pivot in one direction, thus operates to effect the rotation of the armature N, while during the reverse vibration of the segmentthe armature remains at rest.

B is a bar, preferably of metal and of a length to adapt it to the uses hereinafter set forth. This bar is arranged to be seated in or upon the segment A and to move or slide longitudinally transversely of said segment.

.To accomplish. this arrangement, the segment A is preferably provided with an extension or hub (0 and this hub has the transverse slot a formed in it, in which slot the bar B is fitted to slide longitudinally, as shown. The bar maybe furnished with a ringlike handle b at its upper end, and is desirably provided with a pin or projection bat its lower end to limit its movement in one direction in the slot of.

O is the inclosing-case of the machine. In arranging the machine in its said case it is desirable to provide a partition. 0 near one of the end walls 0 of the case, and to permit the hub (L to extend through an aperture in this partition, and to project into a corresponding recess 0 in the box-wall, as shown. By this means a bearing for the hub is furnished in the partition, and the bar Bmay be given play in the hub If within the space or chamber between the partition 0 and wall 0. The bar B is desirably of such a length that when it is slid downward in the slot a and its lower end rests upon the box-bottom its upper end will project but slightly above the box-lid through a slot 0 formed therein and extending transversely thereof, as shown.

Now, it is evident that by means of the bar l3, seated and adapted to move or play longitudinally transversely of the armature-operating segment A, as described, when the machine is not in use, the bar may be slid down- The segment A, by a swing or vibration v IOC . scribed longitudinal play therein may be emward into and be practically inclosed in the case or box 0, and that when it is desired to employ the machine to generate an electric current by the rotation of the armature the bar B may be readily slid upward in the segment, and thus caused to projectthrough the slot 0 in the box-lid, where it will be in position adapting it to be conveniently grasped by the hand of the operator and to serve as a lever to vibrate the segment to efiect the rotation of the armature, as illustrated in Fig. 3, bybeing swung from its limit of movement in one direction in the slot 0 to its limit of movement in the opposite direct-ion therein.

When the use of the machine is discontinued, the bar may be again slid within the box.

By means of the partition 0 and the projection through the same of the hub of", so that the bar B may play in a chamber which is distinct from that in the case which con tains the magnet and its'connected devices,

the exclusion of dust and similar'matter from the main chamber of the case, which may pass through the slot 0 in the lid, is ef= fected. g

Any known and equivalent means for giving the bar B the described seat in or upon the armature-operating device A andthe' de ployed in place of the slotted hub a without departure from the essential feature of my invention.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a magneto-electric machine, the combination, with the armature-operating device adapted to swing or rotate in it's'movement to operate the armature for the generation of an electric current, of a bar seated in or upon said armature-operating device and adapted to slide or move longitudinally therein and transversely thereof, substantially as and for the purpose set forth.

2. In a magneto-electric machine, the combination, with a journaled toothed segment for operating the rotary armature to generate an electric current, of a bar seated in or upon said segment and adapted to slide or move longitudinally therein and transversely thereof, substantially as and for the purpose set forth.

3. In a magneto-electric machine, the combination, with a journaled toothed segment for operating the rotary armature to generate an electric current and provided with 'a lateralext'ension orhub'in which is a transverse slot, of abar s'e'atedin and adapted to play longitudinally in 'said'slot "in" said hub, subof 'an inclosing-case having't'her'ein an apertured partition through which said hub extends and in which it has bearing, together with" a bar seated and having'play longitudiwith a'slotted aperture to permit the bar to project exteriorly of the inclosing case,substantially as and for the purposeset forth.

' "ARDEN" S; FITCH. Witnesses:- a

' A. G. N.- VERMILYA,

A.-T. FALES.

nally in said slotted hub outside" said parti- ;tion, and a lid or wall on said case'provided