US1415636A - Clock frame - Google Patents

Description

W. F. HANSON.

CLOCK FRAME. APPLICATION FILI-:D MAY a. 1919,

Patented May 9,1922.

IPATENT OFFICE.

WILLIAM r. HANsoN, or SAN FRANCISCO, CALIFORNIA..

CLOCK FRAME.

Specification of Letters Patent.

Patented May e, 1922.

Application filed May 8, 1919. `Serial No. 295,653.

To all whom it may concern:

Be it known that I, WILLIAM F. HANsoN, a citizen of the United States, and a resident of the city and county of San Francisco and State of California, have invented a nevi7 and useful Clock Frame, of Which thel following is a specification. b

My invention relates to clock frames and means for mounting spring arbors therein.

An object of the invention is to provide a clock frame and mounting for the spring arbor's such that the spring and arbor are readily disengaged from theJ frame Without disturbing the rest of the mechanism.

Another object ofthe invention is to provide a clock frame in Whichone of the posts holding the parts of the frame together, and to which the end ofthe spring is attached, is releasable from the frame Without disturbing other parts.

The invention possesses otherobjects and features of advantage, some of which, with the foregoing, Will beset forth in the following description of the preferred form of my invention which is illustrated in the drawings accompanying and forming part of the specification. It lis to be understood that I do not limit myself to the showing made by the said drawings and description, als I may adopt variations of the ypreferred form Within'the scope of my invention as set forth in the claims.

Referring to the drawings:

,Figure 1 is a plan view of a portion of a clock frame embodying my invention. Fig-- ure 2 is a vertical` section through a portion of av clock embodying my invention. The

planes of section are indicatec by the line 2-2 of Figure 1. Figures 3 and 11 are perspective views showing details' of the construction. Figure 5 is a plan view of a portion of a clock frame and mounting embodying a modified form of my invention. Figure 6 is a vertical sectional View taken in the plane indicated by line 6-6 of Figure 5. Figure 7 is a plan view of a portion of a clock frame and mounting embodying another modification of my invention. Figure 8l is a vertical sectionalview of the structure shown in Figure 7 and taken in the plane indicated by line 8-8 of that figure.

As clocks are usually :constructed it is necessary to disassemble the entire structure to remove any givenshaft Vor arbor. It is broadly an object of my invention to provide a structure, such that the main or alarm formed With a socket 12 spring arbor for instance, may be removed `The corner post 2, one end of which is shown in Figure 4L is formed to provide a cylindrical neck 3 connecting the head l with the body of the post. The neck is flattened on opposite sides, as at 6, to permit its insertion into the socket 7, formed in the frame 8, through the slot 9 connecting the socket with the edge of the frame. Both ends of the post are alike and so are the rear and front frames 8 and 11, respectively. The post is pushed through the slots into the sockets and then turned 90 to tightly seat the post in the frames. rEhe frame 8 is in which the bushing 13 Figure 3 is adapted to be seated to form a bearing for and position the arbor 141 upon which the spring 16 is mounted. The socket 12 comprises a circular aperture and is connected to the edge of the plate by a .slot 1 the Width of which is greaterthan the diameterof that portion of the arbor le which passes' through it Wlen the parts are assembled, and spans preferably about one-sixth of the circumference of the aperture. Two other slots 1S of the sameyvidth as slot 17 are .extended from the aperture into the frame and spaced 120O from the slot 17 thus providing three evenly spaced segments 19 which are preferably raised somewhat above the plane of the surrounding frame as shown best in F igureQ'. Thebushing is cylindrical in form having a diameter such as to tightly seat Within the segments 19. A complete annular flange 21 forms ahead for the bushing, and at 'the lower end are formed three evenly spaced segmental flanges 22 of size to permit passing' through the slots 17 and 18. The

bushing is seateddn the socket by inserting the iiang'es 22 through the slots and turning the bushing through about 600 or until the stop pin 23 engages the recess 241 formed at the inner end of the slot 17 in one of the segments 19. The segmental flanges are then securely held under the segments 19 flush with the inner face of the frame, the tight frictional engagement of the bushing with the segments preventing accidental turning of the bushing. The front trame 1.1 is also pro-1 llO vided with a similaibushing 'l-3. The arbor lei which carries the spring` 16 and the usual driving gear 27 is journaled in the bushings 13, and is provided with a threaded end 2E to which is aliixed the winding lrey in the usual manner.

Assuming that the spring 16 is to be replaced, the parts are disassembled as follows: rlhe winding lrey is first removed and the bushings are turned about (30o, by means of a suitable 'tool engaging the holes 29, to permit them to be liited out of their soclrets and slipped oil of the end of the arbor. The arbor, together with the spring, is then moved transversely through the slots 17. The post 2 is turned 900 and disengaged 'lroni the frames by transverse movement through the slots 9. rl`he spring may now be readily detached from both arbor and post, a new spring placed thereon and the parts reassembled, no other portions of the clock mechanism being disturbed. li desired the 'liront frame ll is formed with a plain bearing for the arbor and the slot 17 is 'formed wider than the body of the arbor. The arbor is then disengaged by removing the bushing in the rear trame, moving the arbor axially out ol its bearing in the front trame and 'then transversely through the slot.

ln the construction shown in Figures 5 and 6, the bushings 3l which form bearings for the arbor 32 are threaded below the head 33 in which spanner wrench sockets Sil are formed. The bushings screw into suitably threaded apertures in the trames 35, the apertures being` connected by slots 36 with the edges of the iframes. The slots are wide enough to permit the transverse movement o'lt the arbor therethrough after turning` out the bushings, and are curved concentric with the axis ot the post 37. The construction of post 37 and arbor 32 is the same as that of post 2 and arbor 14; except that each is formed to receive links 38 on the ends. These links form additional bearing surilace for the arbor, and when the arbor is swung outwardly from the frames, the links pivot on the post. lith the arbor in place the linlrs lie dat against the inner surfaces oii the plates. The links thus comprise a pivoted 'trame For holding the arbor, and the bushings position the 'lranie and arbm` and 'term b arings lor the latter.

To remove the spring, the bushings are unscrewed and the arbor swung free olf the trames 35. The post 3i is then turned 9W and slipped out olf its sockets, when the links and spring 1G may be taken oil.

lfn Figures 'l' and 8, l have shown a con-- struction in which the bushings 4l are held friction tight at one end in a bar 412. The other end ot' the bushings are adapted to seat snugly in suitably spaced and sized apertures 44 in the frame l 9 One of the bush-.

it). ings is tor the main spring arbor the laisses other 'for the alarm spring arbor, and with the bushings seated in the frame, the bar is secured ther t by screw 46. `liach oli the apertures lll is connected to the edge ol the Atrame by a slot di, through which the arbors may be removed when the bushings are taken oli' by li'ting the bar. The structure of the posts 2, and the associated 'trame structure is the same as that already described. lit desired a similar bar and bushings may be used on the 'liront frame, or that trame may provide plain bearings 'for the arbors. ln this case the arbors are lifted axially to free the ends from the plain hearings and then disengaged 'lrom the rear l'rame by transverse movement through the slots.

l claim:

l. ln a cloclr, a 'trame lorined with an apcrture and a slot connecting the aperture to the edge of the frame, an arbor adapted to be moved transversely through said. slot, and a bearing bushing for said arbor seating in said aperture, said aperture being formed with inwardly extending segments and said bushing with segmental flanges whereby said bushing is movable axially into said aperture and turnable therein to aline the flanges with the segments.

2. ln a clocir, a 'liraxne lormed with an aperture and. a slot connecting the aperture to the et ot the trame, an arbor adapted to be moved transversely through said slot, a bearing bushing for said arbor seating in said aperture, said aperture being formed with inwardly extending segments and said bushingwith segmental tlanges whereby said bushing is movable axially into said aperture an d turnable therein to aline the flanges with the segments, and means for limiting the turning movement of said bushing in said aperture.

In a clock, a front and rear trame each 'formed with two apertures each aperture being connected by a slot with the edge of the frame, a spring arbor adapted to be moved transversely through one pair of said slots, a spring secured to said arbor, bearing bushings :for said arbor seating in the associated apertures, and apost to which the end oit said spring is attached and adapted to be moved. transversely through the other pair of s' :l slots to seat in the associated aperture without longitudinal movement.

ft. ln a cloclr, a frame formed with an aperture and slot connecting the aperture to the edge of the trame, an arbor adapted to be moved transversely through said slot, and a bearing bushing for said arbor seating in said aperture, said aperture being `lorined with inwardly extending segments and said bushing with segmental flanges at one end and a flange at the opposite end whereby said bushing is movable axially into said aperture and 'turnable therein to engage said segments between the segmental. flanges and the flange at the opposite end of the bushing. i

5. In a clock, a front and rear frame each formed with an aperture therein and a slot connecting the aperture with the edge of the frame, and a post for connecting said frames having a flattened neck at each end whereby the post is adapted to be moved transversely through said slots and rotated in said apertures to secure it in said frames.

6. In a clock, a front and rear frame formed with alined apertures and slots con-- necting the apertureswith the edges of the trainee, a post having a attened neck at each end whereby the post is adapted to be moved transversely through the slots and ro- WILLIAM F. HANSON.

In presence of- I C. S; EVANS.

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