US1361223A

US1361223A - Cover-support for phonographs

Info

Publication number: US1361223A
Application number: US381827A
Authority: US
Inventors: Martin C Bersted
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-05-17
Filing date: 1920-05-17
Publication date: 1920-12-07
Anticipated expiration: 1937-12-07

Description

' Patented Dec. 7

. M. c. BERSTED. I COVER SUPPORT FOR PHONOGRAPHS.

APPLICATION FILED MAY 17. 1920.

UNITED S A S MARTIN C. IBERSTED, OF CHICAGO, ILLINOIS.

COVER-SUPPORT FOR PHONOG-RAPHS.

Specification of Letters Patent.

Patented Dec. 7, 1920.

Application filed May 17, 1920. Serial No. 381,827.

To aZZ whom it may concern:

Be it known that I, MARTIN C. BERSTED, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Cover-Supports for lhonographs, of which the following is a specification.

This invention relates to a cover support for phonographs or the like and has for its object the provision of simple and compact means for securely holding the cover in closed or open position, the cover being readily adjustable by simply grasping the same and moving it to the desired position.

Another object of the invention is to pro vide a cover support which can be easily and quickly secured in place with the spring detached within the phonograph or other cabinet and the spring thereafter arranged in place and tensioned to operate the cover in the desired manner.-

A further object of the invention is to enable the use of a comparatively short spring and to prevent the spring from pulling sidewise when it is stretched during the closing of the cover.

Further objects of the invention are to enable the device to be made principally by stamping the parts out of sheet metal; to make the parts of comparatively small size so that the whole device will be compact and light in weight; to construct and arrange the parts so that the spring will be arranged to operate substantially within the device but without interfering with or interference from any of the parts thereof: to provide enlarged pivot bearings for the plvotal connections thereby to reduce wear and insure noiseless operation; to provide a novel form of pivot struck up from the sheet metal and. of comparatively. large diameter to form an integral substantial and noiseless pivot hearing.

Other objects and advantages of my invention will be apparent as it is better understood by reference to the following specification when read in. connection with the accompanying drawings illustrating the preferred embodiment thereof, in which,

Figure 1 is a side elevation of the device applied to a phonograph, the parts being in their closed position.

Fig. 2 is a similar View showing the parts in the opened position.

Figs. 3 and 4.- are enlarged detail sectional views on the lines 8-'-3 and 44 of Figs. 1 and 2 respectively.

Figs. 5 and 6 are enlarged detail views illustrating the method of forming one of the pivots as will be fully described herein after, and

Fig. 7 is an enlarged detail sectional View on the line 7-7 of Fig. 2.

Fig. 8 is a plan view of a portion of a blank plate showing in broken lines where the plate is severed in striking up the lugs.

Fig. 9 is a top plan view of the plate shown in Fig. 8 afterthe first operation of striking up the lugs.

.Fig. 10 is a side elevation of the plate as shown in Fig. 9.

Referring to the drawings 8 indicates the body of a phonograph cabinet to which the cover 9 is connected by the usual hinge 10.

A base plate 11 is secured to the side wall 12 of the cabinet by screws 13 passing through lugs 13 which are preferably of]?- set with respect to the base plate to support the plate free of the cabinet. A pivot support 14-, preferably integral with the base, has a member 15. which extends parallel with the base and is spaced therefrom as best shown in Fig. 7. This support member is provided with a hollow boss 16 to form a pivot for the lever 17 intermediate its ends. A washer 18 fits over the boss 16 outside of the lever 17 and the outer rim of the boss is spun in the manner shown to re tain the washer and the lever thereon, but permitting free rotation of the lever relative to the base.

A link 19 is pivotally connected at one end to the long arm 17 of the lever 17 at 20. I have found it particularly advantageous to form this pivot by striking up two lugs 21 and bending them together in a circular shape to form a pivot stud as shown in Figs. 5 and 6. When first struck up the lugs have outwardly projecting

prongs

23 and 24 thereon, and the shorter prongs 24 are bent around to meet as shown in Fig. 6.

In Fig. 8 I have shown a portion of a plate 17 and broken lines thereon where the plate is severed in forming the lugs. In the first operation the lugs 21 are struck up as shown in plan in Fig. 9 and in elevation in Fig. 10, the dies being preferably so formed that in striking up the lugs the shorter prongs 24}: will be slightly inclined inwardly as shown in Fig. 10. Then pressure is applied to the lugs to straighten out the longer prongs 23 and to bend the shorter prongs 24: inwardly and in substantial engagement to form the circular pivot as shown in Figs. 5 and 6. When the lower end of the link 20 is engaged with the pivot, the longer prongs 23 are bent outwardly, as shown in Fig. 4, to firmlv retain the lever arm 17 and the link in engagement while permitting free relative swinging movement of these parts. This pivot stud is easily made, it forms a substantial bearing for the link connection which will not wear loose in usual service, and it enables the parts to be quickly assembled and securely connected.

The upper end of the link 19 is pivotally connected to the cover in the present embodiment by the pivot plate 26 which is screwed or otherwise fastened thereto. A section 27 is struck up from the plate 26 and is bent over and down upon the link 20, and a rivet or other suitable fastener 28 is put through the section, the link, and the plate to secure these parts together.

An adjusting arm 29 is pivoted at one end to the base plate 11 at 30, and this adjusting arm isprovided with an arcuate slot 31 through which passes the locking bolt 32 which has the washer 33 thereon. A spring 34 is fastened at one end to a projection 35 on the short arm 17 of lever 17 and at its other end to a projection 36 on the adjustin arm.

TV hen the bolt 32 is tightened to lock the arm 29 rigidly to the base, 11 there is ample frictional surface between them to prevent any possibility of shifting of the arm when the cover is lifted and the'spring is extended. The

projections

35 and 36 extend in opposite directions so that the spring will always be held parallel with the side of the cabinet and when the lever 17 swings upon its pivot 16, the axis of the spring will move in a plane substantially parallel to the side wall of the casing and thus a straight pull will be provided and the strain on the parts equalized. An extension 11 is preferably provided on the base plate 11 beneath the adjusting arm 29 to form a guide and support therefor.

The cover may be raised by applying slight lifting pressure hereto which permits the spring to contract and causes the link 20 to move upwardly from the position shown in Fig. 1 to thatshown in Fi 2, and push the cover to open position. The tension on the spring should be sufiicient to balance the weight of the cover in any positlon.

The adjustment of the tension on the 32 is tightened to ri idly lock the arm in its adjusted position. hus it will be seen that the tension may be quickly and accurately adjusted in a very simple way.

The arrangement of the

projections

35 and 36 extending in opposite directions not only provides for properly alining the spring to secure the straight pull mentioned and to prevent any sidewise distortion of the spring action, but it also permits the spring to operate within, so to speak, the device between the base and the overhanging support member 15. ing the pivot for the lever 17 materially facilitates this construction and arrangement and permits the device to be compactly made because it lies entirelyon the outer The boss 16 formno bolt or rivet head on the inner face of said member which might hinder the action of the spring or necessitate an enlargement of the parts.

My invention provides an efiicient and compact device which can be easily applied to a cabinet and which will insure the operation of the cover easily and noiselessly. In practice the device will be fastened in place with the spring detached, which greatly facilitates the operation, and the spring then applied and its tension adj usted as required.

While the invention has been described as applied to a phonograph cabinet it will be readily appreciated that it is equally adaptable for use in chests, trunks and articles of a similar nature and the language of the claims will therefore be understood and construed accordingly.

Various changes may be made in the form, construction, and arrangement of the parts without departing from the spirit or scope of the invention or sacrificing any of its material advantages, the form hereinbefore described being merely the preferred embodiment thereof and I reserve the right to make all such changes as fall within the sco e of the following claims. 7

claimi i 1. In a device of the class described, a base adapted to be secured to the wall of a cabinet, a lever pivotally mounted on said base between its ends, a link connecting one end of said lever to the hinged cover of the cabinet, an adjusting arm mounted on the base, and a spring engaged with said adj ustadapted to be secured to the wall of a cabinet, a lever pivotally mounted on said base between its ends, a link connecting one'end of said lever to the hinged cover of said cabinet, an adj ustingarm pivotally mounted on the base, means for locking said arm rigidly in adjusted position on the base, and a spring engaged with said adjusting arm and with the other end of said lever. I

3. In a device of the class described, a base adapted to be secured to the wall of a cabinet, a lever pivotally mounted on said base between its ends, a link connecting one end of said lever to the hinged cover of the cabinet, an adjusting arm pivotally mounted at one end on said base and having an arouate slot, a locking bolt engaging said slot and the base, and a spring engaged with said adjusting arm and with the other end of said lever.

4:. In a device of the class described, a base adapted to be secured to the wall of a cabinet and having an outstanding pivot support open to receive the spring, a lever pivotally mounted on said support between I its ends, a link connecting one end of said lever to the hinged cover of the cabinet, and a spring engaged with the other end of said lever and with a relatively fixed part of the device and operating within the pivot support.

In a device of the class described, a

base adapted to be secured to the wall of a cabinet and having an outstanding pivot support comprising a support member spaced from the base, a lever pivotally mounted on said support between its ends, a link connecting one end of said lever to the hinged cover of the cabinet, and a spring engaged with the other end of'said lever above the plane of said pivot and with a relatively fixed part of the device below the plane of said pivot and arranged to operate between the pivot support member and the base.

6. In a device of the class described, a base adapted to be secured to the wall of a cabinet and having an outstanding pivot support provided with a member parallel with the base, a lever pivotally mounted between its ends on said member, a link connectingone end of said lever to the hinged cover of the cabinet, and a spring engaged with the other end of said lever and with a relatively fixed part of the device and ar ranged to operate between the pivot support member and the base.

7. In a device of the class described, a

base adapted to be secured to the wall of a cabinet and having an outstanding pivot support provided with a hollow boss to form a pivot, a lever pivotally mounted between its ends on said boss, a link connecting one end of said lever to the hinged cover of said cabinet, and a spring engaged'with the other end of said lever and with a relatively fixed part of the device to operate between the support and the base.

8 In' a device of the class described, a base adapted to be secured to the wall of a cabinet and having an outstanding pivot support comprising a member substantially parallel with the base, a hollow boss struck up from said member onthe outer face thereof to form a pivot, a lever mounted between its ends on said boss, the edges of said boss being outpressed to retain the lever in place thereon, a link connecting onehend of said lever to the hinged cover of the cabinet and a spring engaged with the other end of said lever and with a relatively fixed part of the device and operating between said member and the base.

9. In a device of the class described, a base adapted to be secured to the wall of a cabinet and having an outstanding pivot support, a lever pivotally mounted between its ends on said support, a link connecting one end of said lever to the hinged cover of the cabinet, the other end of said lever having an inturned project-ion, an adjusting arm mounted on the base and having an outturned projection, and a spring engaged with said projections and arranged to operate between the pivot of said lever and the base.

10. In a device of the class described, a' base having offset lugs adapted to be fastened to the wall of a cabinet, said base having an integral outstanding pivot support, a lever pivotally mounted between its ends on said support, a link connecting one end of said lever to the hinged cover of said cabinet, an adjusting arm pivotally mounted at one end on the base, means for locking said arm in adjusted position, and a spring engaged with the other end of said lever and with said adjusting arm and adapted to operate between the pivot support and the base.

11. In a device of the class described, a base adapted to be secured to the wall of a cabinet and having an integral outstanding support comprising a member substantially parallel with the base, a hollow boss proj ecting from the outer face of said member, a lever pivoted between its ends on said boss, a link connecting one end of said lever to the hinged cover of the cabinet, the other end of said lever having an inturned projection at its end, an adjusting plate pivotally mounted at one end on the base and having an arcuate slot, a bolt passing through said slot and the base to lock the arm to the base, an outward projection on said arm, and a spring engaged with said projections and arranged to operate between the member and the base.

12. A metal plate having an integral pivot formed thereon and comprising a pair of oppositely disposed lugs struck up from the plate and bent to circular form.

13. A metal plate having an integral pivot formed thereon and comprising oppositely disposed lugs struck up from the plate and having a plurality of outstanding securing prongs, said lugs being bent to form a circular pivot stud. 1 1. A metal plate having an integra pivot formed thereon and comprising oppositely disposed lugs struck up from the plate and having a plurality of outstanding spaced prongs, said lugsbeing bent to circular form With the ends of the prongs substantially in engagement to form a pivot stu r 15'. A metal plate having an integral pivot formed thereon and comprising oppositely disposed lugs struck up from the plate and having outstanding spaced prongs and intermediate securing prongs, said lugs being bent to circular form Withthe spaced lugs substantially in engagement to form a pivot stud.

16. The combination of a link, a device pivotally engaging the link and comprising a plate, a section struck up from the plate and bent over the link and in a position parallel With the plate, and a pivot pin passing through the plate, the link and said section to connect the parts to ether.

MARTIN o.- B l ERSTED;