US477446A - Albert a - Google Patents

Description

(No Model.)

A. A. PAGE.

Lumi. No. 477,446. Patented'June 21, 1892.

PATENT OFFICE..`

ALBERT A. PAGE, OF NEX/V HAVEN, CONNECTICUT, ASSIGNOR TO THE `SARGENT z COMPANY, OF SAME PLACE.

LATO H SPECIFICATION forming part of Letters Patent No. 477,446, dated J' une 21, 1892. Application tiled April 11, 1892. Serial No. 428,616 (No model.)

To @ZZ whom it may concern.'

Beit known that I, ALBERT A. PAGE, of New Haven, in the county of New Haven and State of Connecticut, have invented `a new Improvement in Rim-Latches; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figumre l, a front View of the latch complete; Fig. 2, an inside view with the covering-plate removed; Fig. 3, a vertical central section cutting on line @c a; of Fig. 2 and looking to the right; Fig. 4, a transverse section of the case on line a: on of Fig. 3 and showing side View of the hub and handle. Fig. 5 illustrates the manner of introducing t-he handle and hub to place.

This invention relates to an improvement in that class of latches in which the bolt is operated by means of a hub arranged in the case, so as to receive a partial rotation, with arms projecting from the hub to engage the latch-bolt, so that by turning the hub in either direction the bolt will be drawn inward against the pressure of a spring, which spring reacting will force the bolt outward, a handle being provided by which the rotation may be imparted to the hub to operate the latch, and particularly to that class of latches which are adapted for application upon the surface of the door, commonly called rimlatches.7 InV the usual construction a spindle extends into the hub, and is provided upon its outer end with a knob or other convenient handle by which the spindle may be turned. This construction necessitates some connection between the spindle and the hub, and also necessitates the manufacture of the handle independent of the spindle and hub, and consequently some means of connection between the spindle and handle.

The object of the present invention is to construct the hub, handle, and' spindle integral; and the invention consists in" the construction as hereinafter described, and par- `ticularly recited in the claim.

A represents the case, which isprovided,

as usual, with a Iiange B, by which it maybe secured upon the surface of the door. The rear side of the case is closed by a removable plate C, also in the usual manner, as seen in Figs. 3 and 4t. D represents the hub, which is constructed at one end with a trunnion. E, which takesa bearing in the covering-plate C, and with a corresponding trunnion F at the other end, which takes a bearing in the face side of the case, as usual, for this class of latches. The hub is provided with arms G and H, by which the bolt may be operated. As here represented,the bolt I is arranged to swing upon apivot J within the case, the axis of which is parallel with the axis of the hub,

the arms G H of the hub being arranged to op erate upon corresponding points K L on "the bolt above its pivot J, and so that by turning the hub in either direction the bolt will swing, as indicated in broken lines, Fig. 2, to draw the bolt inWard,a springM being compressed as the bolt is drawn inward, and therefore operating under its reaction to force the bolt outward. This is a common construction of bolt, and for which any of the known constructions of bolt may be substituted.

Instead of constructing the hub with an angular-shaped opening for the introduction of a spindle, and to which the knob may be applied, the hub D is constructed with an L- shaped handle N, projecting from one side, and here represented as on the face side. The handle is of L-shape, and at its shank projects axially from the hub and then turned to one side to give the L-shape, as shown.

The largest diameter of the handle N is no greater than the diameter of the opening for the bearing ot' the hub through that side of the case. The handle is cast integral with the knob. It is applied as seen in Fig. 5, the end of the handle being first presented to the hub-bearing opening on the inside and then the handle passed through that opening and turned to bring the hub into its position in the case and to its bearing, as seen in Fig. t, the mechanism being introduced before or after the hub has been so introduced and then the covering-plate is applied and secured.

In operation the handle is turned up or down or right andleft, as the case may be, so

IOO

as to give the required rotative movement to; the h ub, and as usual in this classof handles. f

By this construction the hub and handle by` which the hub is operated are cast in a single piece, so that all the labor and parts for the Connection of the two are avoided, thus simplifying the construction rof the .latein-to ai very great extent.

The latch is peculiarly adapted for the smaller class or latches, such as used uponV small doors and eommonlycalled cupboard-y latches, I

In some casesitis desirable to appl ya knob upon the reverse side. This 'islaccom'p'lishedl by making an angular-shaped longitudinal@ Acentral recess in that end of the hub oppo-` site therhandle end and'asindicated in broken l lines at O, Fig.,2,and so Athat a v.knob may be, applied ,thereto intheusual manuel', theknob being lsecured ,to vthat side of the door by; meansof itsmose.

From the ,foregoing it will be understood?4 that the rconstruction of the hub and yits intej gral `handle are applicableto the various constructionsof rim-latches. The vinvention is@ therefore, not to be understood as limited to anism.

l claim-d In a latch substan tially such as described, and in combination with the mechanism of the.latch,.a hubarranged'in the case and by which the mechanismisQperated, one end of the hub projecting through an opening in the case, the hub constructed With an extension through said opening and outside the case, the projection turned to one side to form a handle, and the largest diameter of the handle no greater vthanthe diameter ofthe open- .ing :inthe case through which the projection extends, the said handle and hub being inte- ,gral and substantiallyas described.

In testimony whereof I have .signed .this specification :in ythe presenceof #two subscrib- .ing Witnesses.

,ALBERT .-A.

Witnesses:

CHAUNCEY T. fLAMB, CHARLES L. BALDWIN.

.any fparticula-r vconstruction of latch mechi

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