US1734172A

US1734172A - Phonograph

Info

Publication number: US1734172A
Application number: US208518A
Authority: US
Inventors: Charles P Madsen
Original assignee: WILLIAM W VARNEY
Current assignee: WILLIAM W VARNEY
Priority date: 1925-05-01
Filing date: 1927-07-26
Publication date: 1929-11-05
Anticipated expiration: 1946-11-05

Description

Nov. 5, 1929.

c. P. MApsEN PRONOGRAPH Original Filed May 1. lss

4 Sheets-Sheet 1 IN VEN TOR.

A TORNEY.

Nov; 5', 1929.

c. P. MADS EN I 'PRONOGRAPH 4 Sheets-Sheet 2 Original Filed May 1, 1925 INVENTOR.

M Q MM (54 av WW AFTORNEY.

C. P. MADSEN Nov. 5; 1929.

PRONOGRAPH 4 Sheets-Sheet Original Filed May 1 1925 INVENTOR.

TORNEY.

Nov. 5, 1929. c. P. Mik-DSEN 3 PRONOGRAPH Original Filed May 1 1925 Shegts-Sheet 4 AT; ORNEY.

Patented Nov. 5, 1929 UNITED STATES PATENT OFFICE CHARLES P. HADSEN, OF RAMON, NEW YORK, A SSIGNOR, BY MESNE ASSIGNMENTS, TO WILLIAM W. VABNEY, OF BALTIMORE, MARYLAND IPHONOGRAPE Original application filed Kay 1, 1925, Serial No. 27,206. Divided and this application filed July 26, 1927.

Serial no. 208,518.

This application is a division of application filed May 1st, 1925, Serial No. 27,206.

The object of my invention is the construction of an improved portable phonograph.

A further object of my invention is the providing in a phonograph an improved support for the reproducing means.

A further object of my invention is the providing in a phonograph means for folding the support for the reproducing mechanism.

A further object of my invention is the providing in a phonograph improved means for storing records carried therein.

A further object of my invention is the providing in a phonograph an improved means for covering receptacles therein for containing the needles.

A further object of my invention is the providing in a phonograph an improved construction whereby stamped operations may be used in its manufacture, including the top motor plate. I

A further object of my invention is the providing of a portable phonograph of minimum thickness and dimensions, to accomplish which many novel features have been introduced.

With the foregoing. and other objects in view, my invention consists of the novel construction, combination and arrangement of parts as hereinafter specifically described and illustrated in the accompanying drawing, wherein is shown the preferred embodiment of my invention, but it is understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In the drawing of the herein described embodiment of my invention I have odhered to the various figures set forth in my original application; Figure 1 shows my improved phonograph in perspective, open, assembled, and in playin condition, the record in place on the turn-ta 1e, and a spare vibrating member stored in the cover; Fig. 2 is a sectional view showing the phonograph in closed position, taken on line 22 of Fig. 3; Fig. 3 is a plan view on a reduced scale of the phonograph shown with the cover in open position,

but the various movable parts stored or in inoperative position excepting as to the function performed in storing the records, the records which may have been stored in the machine having been removed; Fig. 4 is a plan View of the phonograph without the case or cover in condition for playing, a record bemg shown on the turn-table partially broken away; Fig. 5 is a sectional view in elevation showing the crank in closed or folded position for transportation, also showing the crank dotted in'open position, view also shows the support for the storage of records; Fig. 6 is an enlarged section view taken on line 6-6 of v Fig. 3. Y

Referring to Fig. 4 which shows the cover 30 and the pointer 105, in Fig. 7 a modification of these two elements is shown whereby the same become more foolproof in that cover 30 must be moved out of the way of the record to be played before the pointer 105 can release the brake 107 from the turn-table cover 30 being provided with projection 32 which bears against the pointer wedging the same into closed or locked position, 32 being the handle in Fig. 7. In the modified form the cover 30 must be open when playing, thus uncovering the needle receptacles 33, and while playing pointer 105 partially covers said receptacle, but when the machine is stopped and needles are required the pointer is out of the way, as indicated. Lanced stop 29' as shown in the modified form in Fig. 7 forms the double function of limiting the movement of cover 30 in both its inner and outer movements. on cover 30 see Fig. 7 is extension 30' which extends to the limit of the motor plate 18 so that the cover, when in closed position, locks said cover 30 against pointer arm 105 and prevents backlash or movement of either.

Fig. 8 shows a modification of the means of carrying the vibrating members whereby the same are carried on the turntable spindle 23 on top of the stored records and means 3' provided in the center of the cover to hold the same in position when the case is closed.

Fig. 9 shows a detached plan view of 3.

Similar numerals refer to similar parts throughout the several views.

1 is the case. 2 is the cover of the case which is operabl'y-hinged,-;to;the.case 1. 3 are the retainin s rings or members inthe under w ic" are carried-1.0: secured the b inkedvibrating member 4. 5"is-the'sepr portions 6 and 7.

Referring to Fig. 4, 18 is the tpfpplate of -fi the phonograph proper. I have und' that 10 a very satisfactory result is obtained b stam This ena les me to provide therein various raised portions stops, etc. 19 is an annular bead. lhis stiilens the top plate and further has a tendency to. prevent any possible vibration of same or warping which might occur from the variousstrains exerted upon said top plate, see Fig. 2.

Near one corner of the top plate 18 is a 20 formed-up portion 24 formin a bearing for the winding shaft 25. 26 an 27 are lanced projections forming'stops to limit the movement of supporting means 28. 31 are marks in the top plate 18' indicating the correct position 0 control handle 105. Cover is provided with raised projectionv 32, which, when the cover is in closed position, acts as a support for stored records, keeping the same from the tum-table, in connection with the 30 other plrojections described later.

especia y shown in Figs. 2, 3, 4, and 7, said cover being pivotally mounted on top plate 18. 33, 34 and 35 are needle receptacles. 36 is a receptacle in'which-the reproducer head fits when in closed position, thus protecting the needle and operating parts.

Supporting means 28 is fulcrumed to top plate 18 by bolt 37. On supporting arm 28 1S projection 40 forming one of the supports for the records stored over the turn-table, keeping the same clear of said turn-table when said supporting means 28 is in housed or closed position; cover 42, which covers needle receptacles 34 and 35 when said arm is housed, is secured to said supporting means by lan'ced projections from said cover em bracing sai supporting means.

.59 is the turn-table which is secured to turn-table spindle 23 by screws or other suitable means. On the edge ofthe turn-table 59 is formed a flange 61.

78 is the' winding crank provided with handle 79, and en aging supporting pin 80, which pin form's t e double function of supporting the crank while winding, and also engaging the windin bracket in recess 81, thus increasin the rigidity of the winding crank, the sai winding crank 78 bein fulcrumed to winding bracket 77 at 82-1n an oflsetposition to ermit the playing of 12" records. The fu crumed end of winding crank 78 is extended beyond the fulcrum within the jaws of the bracket to provide a stiffening means.

Winding crank 78, when in closed or in- 5 curing pin for securing the vibrating mem Y .ber to ether and operates in raised and dethe top plate out of sheet meta This is operative position, is of such a height in such a position to support n con unction with the other record supporting means, the records which may be stored overthe turntable parallel therewith but not touchmg the same, which is clearly shown n Fig. 5. In top plate-18 is cup 83 in which handle 79 ts. when in an. in-operative or stored position, thus. insuring the proper location for the same'to support the said records and being within the limit of the box when the cover is placed thereon.

Control handle 105 is. also provided w1th file brake 107 for stopping the turn-table. w ich rubs on top plate 18, tending to maintain the handle and ppinter in setlposltlon. Having thus descri (I my invention, what I claim and desire to secure by Letters Patent 1. In a phonograph containing a top plate, means for swinginglg mounting, a means of support for a repro ucer on said top plate, raised stops lanced from said top plate to limit the movement of said support ng means, so swingingly mounted on sa1d top plate.

2. In a phonograph having a case, a top plate and a reproducer, means for supporting said reproducer consisting of a plurallty of members mutuall pivoted one of which is fulcrumed on said top plate and another of which carrying the reproducer is fulcrumed to one of said members.

3. In a phonogra h having a case and a ducer on a fulcrum located without said case,

dle 105 is provided with a friction spring,

and means for moving said fulcrum within said case for encased position, comprisin arms having a common fulcrum one of sai arms supporting said reproducer the other of said arms being mounted within the case whereby said arms may be folded to encasing position within the case.

4. In a honograph having a case, a reproducer an a top plate, means for swinging said reproducer on a fulcrum located without said case, and means for moving said fulcrum within said case, comprising arms having a common fulcrum, one of sa1d arms supporting said reproducer, the other of said arms constituting a supporting member and being mounted on said top plate whereby said arm may be folded to encasing' position within the case, said top plate having a recess, means mounted on one of said arms to cover said recess when the arms are in encased position within the case.

5. In a portable phonograph having a turntable, a top plate and a carrying case, means for supporting a record carried in said case free of said turn-table over the same and parallel therewith, consisting of movable means mounted on said top plate for supporting the recordoutof contact of the turntable thus forming a pluralit of supporting members on the turn-table si e thereof.

6. In a portable phonograph having a turn-table and a carrying case, means for supporting a record carried in said case free of said turn-table over the same paralleltherewith, consisting of a plurality of swinging stops'supporting said record over said turn-table, said stops being mounted within said case to fold out of the way of the record when playing.

7. In a phonograph, a casing, a reproducer, means for supporting the reproducer comprising an arm, a second arm similar to the first mentioned arm said second named arm being pivoted on said casing, a top plate in the casing provided with a recess for needles and a cover on said second mentioned arm to cover said recess in encased position.

, CHARLES P. MADSEN.