US576242A - Henry g - Google Patents

Description

(No Model.)

H. G. VOIGHT. LATCH.

No. 576,242.V

Patented Feb. Z, 1897.

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IIENRLT G. VOIGIIT, OF NEV BRITAIN, CONNECTICUT, ASSIGNOR TO 'IHE RUSSELL da ERVVIN MANUFACTURING COMPANY, OF SAME PLACE.

LATCH.

SPECIFICATION forming part of Letters Patent No. 576,242, dated February 2, 189'?.

Application filed October 15, 1896. Serial'llo. 608,937. (No model.)

To all whom it may concern:

Beit known that I, HENRY G. VoiGHT, a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Latehes, ot' which the following is a specification.

My invention relates to improvements in latches; and the objects of my improvement are simplicity and economy in construction and efficiency and ease of operation, and in particular with reference to the ease of forcing in the end of the latch-bolt on closing the door.

In the accompanying drawings, Figure 1 is a perspective view of my latch. Fig. 2 is a rear elevation of the same. Fig. 3 is a like view with the parts in a different position. Fig. 4L is an enlarged horizontal section on the line x of Fig. 2. Fig. 5 is a detached plan view of the latch-bolt, and Fig. 6 is a rear elevation of the same.

A designates the case, having suitable guides for the latch-bolt and a bearingorsupport for the thumb-turn B. On the inner end of the thumb-turn is the hub or plate 7 having ordinary latch-operating arms 8 and also the stop-arms 9.

The latch-bolt is formed of two partsthe slide 10 and the beveled nose 1l,pivoted within the outer end of said slide. The slide 10 is provided with shoulders or wings 12 for the latch-operating arms 8 to act upon in the ordinary manner for drawing the complete latch-bolt into the case by turning the thumbturn or knob in either direction. The beveled nose 1l of the latch-bolt is pivoted to the slide by the pin 13, Figs. 4L and 5, which pin constitutes the axis upon which the said beveled nose swings. The sides of said slide are provided with projections 14, which engage the shoulders 15 to limit the outward movement of said bevel-nose, as shown in Fig. 5, the sides of said slide being cut away in the path of said projections 14 to permit the said beveled nose to swing inwardly on the pivot 13 to bring its beveled or front face 16 hush with the outer end of said slide. A spring 17 is interposed between the inner side of the beveled nose 11 and a part of the case, whereby said spring exerts a constant tendency to force the complete latch-bolt outwardly, as shown in all the figures with the exception of Fig. 3. The ends of this spring may be held in any proper manner, as, for example, by the stud 1S, Figs. 4 and G, on the beveled nose and a similar stud 19 on the case. The slide is also provided with stop-shoulders 2O for engagement with the ends of the stoparms f) of the hub or' plate 7 to prevent the slide of the latch-bolt from being moved inwardly so long as the latch hub or plate 7 stands in its normal position, as best shown in Fig. 2. With the latch mounted upon a door and its parts in this normal position the beveled nose upon closing the door will engage the keeper and be forced back into the slide, while the slide itself remains with its outer end about even with that edge of the case from which the beveled nose projects. In thus swinging the beveled nose inwardly but little resistance is oered by the spring, which is only slightly compressed in an endwise direction and is mainly deflected sidewise, whereby the door is closed very easily. Any pressure on the holding-face 21 of the beveled nose or other endwise pressure which tends to force the slide inwardly is resisted by means of the stop-shoulders and stop-arms before described. To open the door, it is only necessary to operate the thumb-turn and the stop-arms are removed from behind the stop-shoulders, so that the latch-operating arms may draw the complete latch-bolt (the slide and the pivoted beveled nose, together with the axis on which said nose swings) bodily inward in the ordinary manner of the thumb-turns or knob-latches.

I have shown my latch as arranged. for a thumb-turn or knob and with stops specially adapted for such a latch, butmy peculiar latch-bolt, consisting of a slide and beveled nose pivoted to said slide, may be employed with dierent mechanism for drawing the complete latch-bolt inwardly and with different stop mechanism.

In a companion application of even date herewith, October 15,1896, Serial No. 608,936,

I have shown and described stop and opel ating mechanism which for the purposes of the combination of my peculiar latch-bolt therewith I consider the equivalent of the stop and operatin g mechanism herein shown.

I claim as my invention* l. The combination of the latch-bolt slide, and beveled nose pivoted thereto, with devices for moving the complete latch-bolt inwardly, stop devices for preventing the slide from moving inwardly under endwise pressure, means for withdrawing said stop devices upon attempting to draw the said slide inwardly by its operating-handle and a spring substantially as described.

2. The combination of a case, the latch-bolt slide having stop-shoulders, the beveled nose pvoted to said slide,a spring, a knob or thumbturn, a hub operated by said thumb-t urn and having latch-operating arms and stop-arms acting in connection with said slide substantially as described.

3. In a latch, a latch-bolt consisting of a slide and a beveled nose having the axis on which the said nose swings mounted on said slide, the said slide, nose and aXis being arranged to move together bodily for withdrawing the latch-bolt from the keeper substantially as described.

4. In a latch the combination of the case, a latch-bolt slide, a beveled nose having the axis on which it swings mo unt-ed on said slide, and a spring exerting its pressure between said case and the inner face of said beveled nose substantially as described.

HENRY G. VOIGHT. Witnesses:

T. S. BISHOP, M. S. WIARD.

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