US2071092A

US2071092A - Lock

Info

Publication number: US2071092A
Authority: US
Inventors: Troy Max
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-11-05
Filing date: 1935-11-05
Publication date: 1937-02-16
Anticipated expiration: 1954-02-16

Description

M. TROY 2,071,092

LOCK

Filed Nov. 5, 1955 s sheets-'sheet 1 Feb. 16, 1937.

INVENTOR Maf/c Troy BY- ATTORN EY WITN ESSES ZM M. TROY Feb. 16, 1937.

LOCK

, 1935 3 Sheets-Sheet 2 Filed Nov. 5

INVENTOR a/r ,7d/ay BY www! www@ wlTNEssEs MW ATTORNEYS M. TROY Feb. 16, 1937.

LOCK

3 Sheets-Sheet 3 Filed NOV. 5, 1935 elm. f

WITN ESSES ZW l ATTORNEYS Patented Feb. 16, 1937 UNITED STATES PATENT OFFICE 4 Claims.

This invention relates to a lock which is designed and adapted to be used on the doors of the inner cylinder of a laundry washer.

The principal object of the invention is to incorporate means in connection with each door of an inner cylinder of a laundry washer in such manner that there will not be any projecting portions or sharp edges on the inside to tear or otherwise damage the articles being washed within the cylinder.

A further object of the invention is the provision oaf improved means of the indicated character which may be readily operated to tightly clamp or hold a door closed against its frame to avoid damage to the articles being washed, and also to be readily operated to release the door so that it may be opened to remove the `.washed articles.

A further object of the invention is the provision of means of the indicated character adapted to exert clamping pressure at a plurality of spaced points so as to tightly clamp a cross sectionally curved door against its frame for the purposes stated hereinabove.

With the foregoing and other objects in viewV the invention resides in the combinations, constructions and functions of the parts hereinafter fully described and illustrated in the accompanying drawings, in which- Figure 1 is an outside View oi an inner cylinder unit of a washer embodying the invention, and showing a door in closed position and its locking mechanism released.

Figure 2 is a View similar to Figure 1, but showing the locking mechanism locked to exert clamping pressure on-the door.

Figure 3 is an enlarged section taken on the line 3-3 of Figure l and looking in the direction indicated by the arrows.

Figure 4 is an enlarged section taken on the line 4--4 of Figure l and looking in the direction indicated by the arrows.

Figure 5 is an enlarged section showing one of the latch members engaged and how it exerts clamping pressure to press the door against its frame.

Figure 6 is an enlarged section taken on the line 6-6 of Figure 2 showing another one of the latch members engaged for the purpose of exerting pressure to press the door against its frame.

Figure 7 is an enlarged view of the gear set and its crank spindle for operating the locking mechanism.

Figure 8 is a section taken on the line 8-8 of Figure 7 and looking in the direction 'indicated by the arrows.

In the illustrated embodiment of the invention there is shown a single unit of an inner cylinder of a washer used in laundries for Washing various articles. This inner cylinder is made up of a plurality of similar units which are bolted together end to end, and each of said units is subdivided into a plurality of sector-shaped compartments, each of which has a door and door opening for the introduction of the articles to be washed into the compartment and for their removal therefrom. The cylinder Il) is perforated in order to allow the Washing solution to percolate through the articles being washed as the cylinder is being rotated. The cylinder unit has a plurality of inwardly projecting hollow ribs` |I which are also perforated.y One rib I I is adjacent one side of the door opening. A door frame surrounds the'door opening which is rectangular. The door frame consists of a flange I2 on one of the radial walls of the cylinder, a strip I3 secured to a flange I4 of the rib II, and rings I5. The ange I2 and the strip I3 are disposed at opposite ends of the door opening and the rings I5 are disposed, respectively, at opposite sides of said opening. 'I'he door opening is controlled by a door I6 which fits the frame surrounding the opening, said door being arcuate or circumferentially curved. The door has a plurality of hand holds I'I at' one end thereot` for sliding the door to opened and closed positions. A rabbeted strip I8 is secured to the flange I2 and serves as a stop to limit the sliding movement of the door I6 to its closed position. Parting rings or spacers I9 are secured, respectively, to the rings I5, and guide rings surround the rings I9 and are secured thereto. The rings I5, I9 and 20 constitute guides for the door I6.

The door locking, releasing and clamping mechanism consists of the following parts. Four latch members 2| are mounted on the outside of the door I6. A pair of the latch members 2| is arranged near each end of the door. Each latch member 2| is held in place for axial movement by a bearing 22 secured to the door I6 on the outside. Each latch member 2| has a conical outer end 23. The latch members 2| are engageable, respectively, with keepers 24 secured to the rings 20. A pair of the keepers 24 are arranged at each end of the door opening so as to receive the outer ends 23 of the latch members 2|, respectively, when the door I6 is in its closed position against the stop I8. Each keeper 24 has a conical hole therein slightly larger than the conical end 23V Links 2l each have one end pivotallyv Y Vreverse rotation of the disk 26 because the gearV and63. A'forced under'the strip I8 thereby tightly pressing l"saidend against the frame.

adjustments to compensate for wear or other variations. The disc 26 has a radial arm 3|. Linkage is provided consisting of

members

32, 33 and 34, respectively. The member 32 has one end pivotally connected with the arm 3| as at 35, and its other end is pivotally connected with one end of the member 33, as at 36. The other end of the member 33 has a bolt and slot connection 3l with one end of the member 34. The member 33 has sliding movement in a guide 38 secured to the door. Turnable parts or discs 39 are mounted on studs 4). respectively, secured to the door i3. Each disc 39 Ahas an arm 4|, and there being a bolt and slot connection 42 between each arm 4| and the link member 34. Each disc 33 has an arm 43 pivotally connected with one end of a link 44 as at 45, and the other end of said link 44 being pivotally connected with a latch member 2|, as at 46. Ea-ch link 44 has a turn-buckle 41 to increase or decrease the length thereof. A gear set or equivalent means is employed `for turning the disc 26 to actuate the latch' members 2| through the intervention of the linkage and the discs 39. The gear set consists of va crank `'spindle 50 which is mounted transversely of theA door i6 and has an outer nonc'irc'ular end 5| to accommodate a suitable crank. A beveled gear 52 on the spindle 50 meshes with a beveled gear 53 on a worm 54 which meshes with Va Worm gear 55 'fast on a shaft 5B. The shaft'E extends'transversely with respect to the door and has (an outer non-circular end 51 which isfdi'sposed 'in a similarly shaped hole in the disc-a` to cause the latter to rotate in response to the rotation of the shaft 56. The disc 25 is held on the shaft 56 by a nut and Washer 58 on the shaft 55. The gear set is' enclosed in a casing or housing 59 secured to the inside of the door i6 as at 61B. The shaft v585 of the 'gear 55 being directly connected to the disk 26 prevents 55 can not turn the Worm 54; hence unintentional release of Ithe latch members Will be prevented.

lfk desired, Vas shown in the present instance, another latch member 6i of a somewhat dierent typafrom the latch members 2| may be employed. The latch member 6| is'pivotally connected as at $2 with one end of a link member 53h-Whose other end is connected With the link Y.memberr34by a bolt and slot connection 64. The

link member 63 is guided by a guide bearing 65 ,secured to the door I6. `A keeper block 56 is sefured Within the rib- Il in line with the latch member ill. The block 6B has an oblique notch 5l .therein Which receives the oblique'bill 68 of the latch member 6| When the door I6 is in 3l' setting up a camming action and thus forcefully' press the adjacent end of the door |6 tightly against the frame strip |3, by manipulating the'spindle`53, and through the intervention of the'disc 126, arm 3|, and

link members

32, 33, 34 The other end of the door I6 Will be 'From the foregoing it will be obvious that the door IB may be readily slid into its opened and closed-positions by means of the hand hold -When the door |'6 is in its closed position it may be effectively secured or locked by manually operating the spindle 50 by a suitable crank which will cause all of the latch members to be engaged with their keepers or disengaged therefrom. It will be obvious that by reason o-f the provision and arrangement of parts set forth the door I6 Will be clamped tightly all around against its frame; that there are no sharp edges projecting inside of the cylinder compartment to damage any of the articles being Washed; and that the locking and releasing of the door I6 may be conveniently done.

I claim:

1. A lock for a door including latch mechanism adapted to be used with keepers, comprising primary latch"mem-bers slidab'ly mounted on said door at opposite sides thereof engageab-le Vwith and disengageable from said keepers respectively when said door is in its closed position, said primary latch Vmembers embodying camming means cooperating With said keepers yto exert pressure on the sides of the door vwhen the primary 'latch members [are engaged with the keepers in such manner that the sides-of the door vvvill be forced tightly closed, an auxiliary latch mechanism at one .end of said door, a llink mounted for move- -ment-.on'saidzdoor longitudinallyathereof and having one end vpivotally connected with said auxiliary 'latch 'memben vmeans connected with said link'and saidlfprimary latch members forv causing the primary latch .members and the auxiliary latch member to function simultaneously, said means causing said primary latch members to be forced outwardly into said keepers While pulling said auxiliary latch member into functioning position, and power means connected vwith the rst mentioned means for actuating said rst lmentioned means, said power means including a Worm gear set which prevents unintentional release of- Ythe'variofus latch members.

2. In a locking mechanism of the character described, latch mechanism adapted to be used with keepers, comprising latch members for securing a closure in closed position, there being one of said keepers for 'each ofsaid latch members, and means connected'with said latch members which is operable gto ,move said latch members simultaneously into and out of engagement With their keepers, said means including a gear set which functions to prevent unintentional operation of said means and consequent releaseof the latch members.

3. vIn a locking mechanism yof the character described, a latch mechanism'adapted to be used With keepers, comprising latch members for securing a'closureinclosed position, there being one of said keepers for each of said latch mem'- vbers, a rotary part,'means connecting the'latch members with -said Ipart, and gearing including a worm and gear for-actuatinglsaid means.

4. In a locking mechanism of the character described, va latch 'mechanism ladapted to`be `used withkeeperscomprising a` plurality o-f cam latch mernbersmounted for movement 'with respect to said keepers respectively, and means connected With said latch members which is operable to including a gear set which prevents unintentional release of the latch members.

' MAX TROY.