US 1641738 A
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Description (OCR text may contain errors)
Sep't. 6 1927.
J. P. CLARKE ACTUATING' DEVICE FOR DOOR AND WINDOW TRANSOMS Filed April 14. 1926 FIG.5. FIC-L59.
J'SEPH P. CLARKE A TTORNEYS.
Patented Sept. 6, 192.7.a
UNITED STATES PATENT OFFICE.
ACT'UTING DEVICE FOR DOOR ANI) WINDOW TRAN SOMS.
Application filed April 14, 1926. Serial No. 101,855.
This invention relates to improvements in actuating devices for transoms, and more particularly to those of a character adapted for mounting within door and window frames to conceal them from viewy and thereby add to an attractive finish of the frame exterior.
Heretofore the practice has been to provide a construction constituted of link-mem- Hl bers and a push-rod bearing a clutch or locking-member, these being mounted upon the facing of the frame and connected in such manner with the transom as to cause it to swing upon release 4of, the clutch and l5 exerting a push or pull upon the push-rod.
Aside from working at a mechanical disadvantage, as thus constructed and mounted, the device was both inconvenient and unsightly and, at times, its operation quite a task.
The primary object of my invention is the provision of an eiiicient device of the character described that maybe concealed within the frame work of a door or window and f' connected-up with the transom in such manner as to swing the latter about its points of support through the operation of a handwheel, or like member, carried by a plate secured exteriorly to the frame and positioned conveniently at hand for manipulation` Other objects and advantages will appear with reference to the subjoined specification, and one sheet of drawings, in which, :z5 Figure 1 is a fragmentary elevation of a door and transom, showin the preferred embodiment of my invention mounted in position for use;
Figure 2 is a vertical sectional view taken through the door-frame, and is illustrative of the method of mounting the device between the walls constituting the framing of one side of the door, with the operating shaft extending through the face-plate an bearing an operating handle mounted adjacent said plate, the section being indicated by the line 2 2, in Figure 1;
Figure 3 is a vertical section, lllustratlve of a modified form utilizing a worm and chain-drive instead of a rod and bevel gears;
Figure 4 is a vertical sectional view illustrative of another ymodified drive, in which a worm-gear and worm are employed;
Figure 5 is a vertical sectional view illustrative of another form embodying a rack and pinion construction; and
.Figure 6 is a detail 'view illustrative of the method of mounting the gear-shaft of the transom uponth'e edge of the transom.
Referring to the drawings in detail, 1 indicates in a general way a fragment of an upper left-hand portion of a door and transom frame, in which is mounted ,a door 3 and a transom 2, the transom being of the usual centrally-pivoted type adapted for swinging about its centrally aligned bearings, as hereinafter described.
In accordance with my invention, thistype of transom is hung in its frame by means of edge-plates 4 mortised into the end edges of the transom and secured thereto by screws 5, these plates being provided with integrally formed stub-shafts 6 adapted to extend through bearings 7 mounted in the frame nprights 8, the left-hand shaft 6, Figure 1, being provided on its-inner end with a'bevel= gear 9 housed `within the frame and adapted to mesh with a small beveled pinion 10 mounted upon the upper end of an operating shaft 11, the upper end being supported by suitable bearings 12 and its lower end supported in a bearing 13 and carrying a second pinion 14, the pinion 14 being adapted to mesh with a pinion 15 mounted upon a shaft 16 carried by a bearing 17 preferably mounted upon the face-platetof the door-frame and provided with an actuating means 18 mounted upon its outer endv adjacent the face-plate and within easy reach for manipulation.
In Figure 3 a modified form has been shown, in which a sprocket-wheel 19 is mounted upon the shaft 6, the sprocket being connected to a smaller sprocket-wheel 20 by a sprocket-chainl 21, said sprocketwheel 20 being mounted upon a shaft 22 carried by a bearing member 23. A wormgear 24 is mounted upon the said shaft adjacent the sprocket 20 and is adapted to mesh with a worm 25 carried by the shaft 26, which is supported in bearings 27 mounted upon the face-plate of the frame, this shaft extending through theface-plate and bearing an actuating means 28 upon its outer end similar to the means 18,shown in Figures 1 and 2.
ln Figure 4 the shaft 6 is provided with a worm-gear 29 adapted tol mesh with a worm mounted upon the ,upper-'bend of the shaft 31, the lower end of this shaft being provided with a bevel-pinion 32 adapted to mesh with a bevel-gear 33 carried by the shaft 34 and operable through the means 35, this construction being' very similar to that shown in Figures l and 2, except in that a worm-gear 29 and a Worm 30 have been substituted for the bevel-gear 9 and pinion 10 of that construction.
In Fi ure 5 a rack and pinion construction is illustrated which consists of a pinion 36 mounted upon the shaft 6 and adapted to mesh with a rack bar 37 having upper and lower rack sections 38 and 89, the said bar being mounted for vertical movement in bearings 40 and 41, with its lower end section 39 meshing with a pinion 42 borne by a shaft 43, said shaft also carrying a small worm pinion 44 adapted to mesh with a worm/15 borne by the actuating shaft 46.
It is obvious that a device of this character may be installed and concealed Within the frames of doors and Windows of buildings While under construction, with the only part remaining unconcealed being that of the means provided for the actuation of the device, thus removing from yview the unby centrally arranged stub-shafts in su porting bearings, one of said stub-sha s being provided with a gear, of an actuatin mechanism comprising a bar carrying a rac at its either extremity and adapted for limited vertical movement, the rack carried by the upper extremity of said bar being adapted to mesh with the gear borne by one of said stub-shafts and being additionally provided with means for its actuation 'comprising a shaft bearing a pair of gears of unequal diameter, a worm and a means for the actuation of said worm, the smaller of said gears being in mesh With said worm and the larger in mesh with the lower of the racks borne by said bar.
In testimony whereof I have aiixed my signature.
JOSEPH P. CLARKE.