US4936A

US4936A - Mobtising-machine

Info

Publication number: US4936A
Authority: US
Publication date: 1847-01-21
Anticipated expiration: 1864-01-21

Description

U'Nirn srarns PATENT cerros.

JOS. W. INGLE, OF UPPERVILLE, VIRGINIA.

IVIORTISINGr-IVIACHINE.

Speccation of Letters Patent No. 4,936, dated January 21, 1847.

To all whom t may concern:

Be it known that I, JOSEPH W. INGLE., of Upperville, in the county of Fauquier and State of Virginia, have invent/ed a new and useful Improvement in Machines for Mortising WindowBlinds, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure 1 is a perspective view of the machine in the act o-f mortising a pair of stiles simultaneously. Fig. 2 is a sectional view showing the cutters, slides, and lever detached from the frame. Fig. 3 is a sectional view showing the notched gage bar and spring dog for determining the distance apart of the mortises. Fig. Il is a perspective view of a portion of ditto. Figs. 5 and 6 are plans of the cutters for cutting the mortises for the slats.

The nature of my invention and improvement consists in securing two stiles of a window blind to the sides of a notched gage bar by means of arms extending from the sides of said bar' and a key which. enters mortises in the stiles-the teeth on the side of the gage bar being made as far apart as the required distance apart of the slats of the blinds said teeth being brought in contact with the spring dog attached to the frame for holding the gage bar and stiles in the required position during the operation of 1nortising;-the stiles being then moved by the operator between two cutters having a simultaneous action by means of a vibrating lever moved by the operator to which the cutters are attached by slides straps o-r pins or other more suitable contrivances by which arrangement and mode of operation two mortises are cut one in each stile at each movement of the lever. The operator holding the stiles in his left hand and the lever in his right hand and moving the stiles forward toward the cutters one notch for every movement of the lever.

Similar letters in the several figures ref-er to corresponding parts.

E is the spring dog attached to the frame.

F F are the cutters for cutting mortises in the stiles for the slats made in the usual manner in the form of the slat and set in the slides at the angle of the required mortises to be cut,-as shown in Figs. 5 and.

Gr are the slides to which the cutters are attached having tongues G on their sides which move in grooves in the two front parallel posts of the frame.

H are the iron straps or links by which the slides are connected to the lever.

I is the lever composed of a bar of wood and two iron straps I.

J is the fulcrum of the lever inserted into 1qne vof the front posts of the frame. K the The operation is simply as above statednamely bringing the notched gage bar B in contact with the spring dog E with the left hand and with the right hand depressing the lever I which drives the 2 cutters F simultaneously into the two stiles D-o-ne cutter descending and the other ascendingthen raising the lever which recedes the cutters lfrom the stiles-then moving the stiles forward the distance of a notch of the gage bar and repeating the o-peration and so on until all the mortises are made.

I do not claim the use of a notched bar for regulating the movement of the stiles to determine the distance apart `of the mortises to be cut therein; nor do I claim cutting on opposite sides of a piece of timber simultalroieously by the movement of a single lever;

lVha-t I do claim as my invention and desire to secure by Letters Patent is- The before described mode of mortising the stiles for window blinds by securing two st-iles to a notched gage bar and bringing the teeth of said gage bar in contact with a spring dog fixed to the frame between the two oblique cutters attached by slides to a lever, which cutters aremade to cut two mortises simultaneously at each movement of the lever one on each stile and on opposite sides.

In testimony whereof I have hereunto subscribed my name before two subscribing witnesses.

JOS. W. INGLE. Witnesses: l

J. F RANoIs MAHER, ALBERT E. H. JOHNSON.