US 381100 A
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Description (OCR text may contain errors)
(ModeL) I I TH.
SPRING HINGE. 3
bro- 381,100., f 8.-
IN. PETERS, Plwwumomplwn Wilhlngtun, 0.0.
7 UNIT D STATES WILLIAM BEATH,
f PATENT Orricn.
SPECIFICATION forming part of Letters Patent 110.381.100, dated April 17; 1888.
Application filed November 17, 1887. Serial N0. 255,481. (Modem:
To all whom it may concern.- 7 I .Be it known that 1, WILLIAM H. BEATH, a citizen of the United: States, residing in the city of Rockford, in the county of Winnebago and Stateof Illinois, have invented certain new and useful Improvements in Spring-Hinges, of
which the following is a specification. V
The object of this invention is to improve this class of spring-hinges, to simplify their construction, toproduce a durable and efficient hinge at a reduced cost, and at the same time embody all the advantages of the more complicated hinges.
To this end I have designed and constructed ,the spring-hinge represented in the accompanying drawings, in which K Figure 1 is a front elevation. of a springhinge embodying my improvements. Fig. 2 is avertical central section of the same on dotted line a on Fig. 1. Fig. 3 is a transverse section on dotted line b on Fig. 1, showing the pawl engaging the teeth of the ratchet. Figs. 4 and 5 are isometrical representations of the plates of the hinge. :Fig. 6 is an isometrical representation of the pintle-key. Fig. 7 is an isometrical representation of the combined clutch-head and ratchet.
The plate'l of my improved hinge is com- I posed of the usual base portion, which is pro- 0' vided with holes for the reception of screws to fix it in place. Ears 2 and 3 project from the base portion. The upper ear, 2, is bored for the reception of a pintle-key. A pintle-stud,-
4, rises from the upper face of the lower ear, 3, for a purpose to appear hereinafter. Between the ears 2 and 3 is formed a pawl, 5, as shown, projecting from the'base portion.
The plate 6 is substantially like plate 1, with holes for the reception of screws. Ears 7 and 8 project from the base portion. The upper ear, 7, is bored to receive a pintle-key., A boss, 9, with'a central opening rises from the upper face of 'the ear 8. The opening is of such size as to admit the stud 4, rising from the ear 3. A combined clutch-head and ratchet, 10, is made with a central opening, .11, preferably of a square form, (shown in Fig. 7,) and with a depending flange to engage'the end of the spring. A pintle-key, 12, consists of a j 5o head and shank portion. The upper portion the ears 2 and 7, while the remainder is of the square form shown in Fig. 6 to enter the opening in the combinedclutch-head andiratchet. A spring, 13, surrounds the pintle;key, the upper end engaging the clutch-head and the lower end surrounding the boss- 9.
with the clutch-head, is placed between the ears 7 and 8, so that the lower end. of the To put my improved springrhinge together, the ears of plate 6 are placed between the ears of plate 1, so that the stud 4 on 68.113 Will'ent'er, the opening in the ear 8, and so thatthe open The spring'will surround the boss 9' on the ear 8 V and the end of the spring will rest against the plate 6, and the opening in the combined clutch-head and ratchet will coincide with the openings in ears 2 and"7. The pintle-k'ey is then inserted downward through the opening in the ears 2 and 7 and combined clutch-head and ratchet 10. The lower end of the pintle will enter the opening in the boss 9, which will prevent the spring flying out, and also guide the pi'ntle-key in. its endwise movement;
When the parts are in this position, a portion i of the pintle-key projects above the ear 2', and the end of its rounded portion will come in contact with the combined clutch-head; and
ratchet, for a purpose to appear hereinafter.
To increase the tension of the spring to hold the door closed with more or less force, the operatorwill push downward on the pintlekey, which will consequently disengage the ratchet from its connection with'the pawl 5. A Thenby turning the pintle-key to the left the tension of thespring will be increased,
and by lessening "the downward pressure on the pintle-key the, action of the springwill force the. ratchet into engagement with the pawl and hold the spring as adjusted.
It will be seen by the foregoingde'scription and an inspection of the drawings that I have produced a singleacting spring-hinge of but few pieces. 1 do not'employ the usual-clutchhead at the bottom of the'spring, as the ear'8 of plate 6 is of suchform as to serve the double y purpose of a clutch-head and connection ofthe Ioo plates 1 and 6, and my spring-hinge, constructed as herein set forth and shown, embodies but two pieces over the ordinary loose butt-to wit, a spring and combined clutchhead and ratchet. Therefore it will be seen that I am able to make a spring-hinge embodying all the elements necessary for a complete single-acting spring-hinge at a reduced cost.
I claim as my invention The herein-described single-acting spring hinge, consisting, essentially, of the two secnring plates orleaves, the combined clutch-head and ratchet, the spring and the pintle-key, the
securing-plate being provided with cars per- I 5 forated to registerwith one another, the spring seated at one end directly on one of the ears and at the opposite end on the combined clutch-head and ratchet, the pintle-key extending through the axial center of the hinge 20 and combined clutch-head and ratchet, and one of the plates being further provided with a pawl to engage the teeth on the ratchet, substantially as set forth.
WILLIAM H. BEATH. Witnesses:
A. O. BEHEL, J A0013 BEHEL.