USRE5568E - Improvement in machines for boring and mortising blind-stiles - Google Patents
Improvement in machines for boring and mortising blind-stiles Download PDFInfo
- Publication number
- USRE5568E USRE5568E US RE5568 E USRE5568 E US RE5568E
- Authority
- US
- United States
- Prior art keywords
- stiles
- boring
- blind
- mortising
- carriage
- Prior art date
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- 238000010276 construction Methods 0.000 description 4
- 230000036633 rest Effects 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
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Definitions
- My said invention relates to the boring and mortising of window-blind stiles, into which the shade-slats are inserted; and the invention consists in a certain novel construction and arrangement of parts, which have for their object an automatically-acting machine, capable of rapid work and ease of operation, as herein after more fully described.
- Figure 1 is a top view of the machine.
- Fig. 2 is a side elevation thereof Fig. 3, a section in the line 3 y of Fig. 1.
- the remaining figures represent detached portions of the machine.
- the frame of the machine is constructed of any material so as to be strong and substantial, cast-iron usually being employed, the parts being bolted together, and of such shape as to readily support the operative parts of the machine.
- the machine is so constructed and arranged that two stiles can be simultaneously operated upon. The position of the stiles, when placed in the machine to be acted upon, is shown in Figs. 1, 2, and 3.
- Each stile is secured to a notched or pattern feeding-plate, N, by means of a curved strap, a, and setscrew, t, or by other suitable means, and each feeding-plate N rests upon the transverselymovable carriage A.
- the carriages A A are supported and guided in their movements by the transverse plates B, which are secured to the upper side pieces of the frame of the machine.
- the lug g which rises from the inner end of each carriage A, and the opposite ledge c, which rises from the upper face of said carriage, form a guiding-way for the pattern feeding-plate N, which rests upon the same.
- a stile When a stile is placed in position upon the carriage A its outer surface is acted upon by a spring, t, at the inner end of the slotted plate h, which plate can be secured in any desired position upon the carriage by means of the screw o.
- the shaft G which has sockets in each of its ends for the reception of required mortising or boring bits d or 8, works in journal-boxes that are secured to the upper end of the reciprocating carriage O, which is supported and guided in its movements byinclined ways M M that are secured to the frame of the machine in the manner shown in Fig. 3, or supported in any other similar way.
- Fig. 6 is a representation of a full-sized bit generally used for boring pivot-holes in blindstiles
- Fig. 11 shows a bit for forming mortises in blind-stiles by adding an obliquelyreciprocating movement to the rotary movement of said bit or cutter.
- the blind-stiles g g are held in the proper position during the operation of boring or mortising them, and are then released and moved outward and forward to the next position of the bore or mortise, and successive operations, as follows:
- An up right, 4 which is cast in one piece with or is otherwise secured to one of the inner angles of each carriage A, rises above and descends below the carriage, as shown in Fig. 9.
- each lever f is jointed, as shown in the drawings.
- the short end of each lever f curves outward a sufficient distance to bring the vertical aperture therein, which receives the adjustable holder w over the center of the stile g on that side of the machine.
- the two levers E E which are pivoted to the transverse pieces F of the frame of the machine, serve to connect the descending projections 'r r of the carriages A A with cam-grooves n can a" in the cylinders L L, in the manner represented in the drawin gs-namely, the downward projection r from each carriage A is received into a concavity in the left-hand end of its lever E, and a descending tooth from the opposite end of said lever fits into its actuating cam-groove a a" in one of the cylinders L.
- the cam-grooves a a: in the cylinders L L are of such oblique shape that the rotation of the said cylinders will gradually force the tooth ends of the levers asunder, and thereby cause the opposite ends of said levers to draw the carriages and the stiles gg inwardly during the time that the teeth of the levers are passing from the points a; to the points a in said grooves, and then the abrupt inclination in the grooves will suddenly draw the outer of said grooves inwardly for the purpose of causing the opposite ends of the same to suddenly force outwardly the stiles g 9 beyond the reach of the bits in the ends of the shaft G.
- a reciprocating movement is imparted to the carriage (3, which carries shaft G, by means of the adjustable crank a on the shaft D, pitman I), which connects the former with the latter, 'as shown in the drawings.
- the shaft G is secured in a permanent position by the screw 6 in the cross-piece f being turned up into a notch or recess in the pitm an I), or other suitable means.
- the pivots of the pawls k k are located near the centers of the lengths of the same.
- the outer ends of said pawls are connected to each other by means of spring j of any proper construction.
- the actuating ends of the pawls 70 k can be simultaneously drawn inwardly and secured in such a position that they will not act upon the teeth of the feeding-plates N N by means of the pivoted hand-piece I, in the manner-shown in Fig. 10.
- a small pulley on one end of the drivingshaft H is banded to a large pulleyon the crank-shaft D, and a large central pulley on the said driving-shaft is banded to a small rulley on the center of the bit-carrying shaft Motion is imparted to the cylinders L L by means of a band, which connects a small pulley on the crank-shaft D with a large pulley on the shaft K.
- I claim 1 The combination of the following elements or instrumentalities, namely: A reciprocating carriage for holding and presenting the stile to the cutter, a pattern for spacing the mortises to be cut, a reciprocating cutter for cutting the lnortises, and a feeing mechanism for automatically feeding the stiles for the successive mortises, all acting in co-operative relation with each other, substantially in the manner described and specified.
- a reciprocating carriage for holding and presenting the stile to the cutter, a pattern for spacing the mortises to be cut, a reciprocating cutter for cutting the mortises, an automatic feed for feeding the stiles, and an automatic clamp for clamping and releasin g the stile for the operations of feeding and cutting, substantially in the manner described and specified.
- a rotary cutter-head carrying cutters at both ends combined with an inclined reciprocating frame, and so arranged as to automatically'and simultaneously cut mortises in or bore a pair of blind-stiles as they are presented to the cutters, substantially in the manner described and specified.
- An organized machine for automatically mortising and boring blind-stiles constructed and operating substantially as described and specified.
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