US1621061A

US1621061A - Door-mortising machine

Info

Publication number: US1621061A
Application number: US72722A
Authority: US
Inventors: Ray L Carter
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-12-02
Filing date: 1925-12-02
Publication date: 1927-03-15
Anticipated expiration: 1944-03-15

Description

- 1,621 061 March 15, 1927. R. L. CARTER DOOR MORTISING MACHINE Filed Dec, 2, 1925 2 Sheets-Sheet; 1

March 15, 1927.

. 1,621,061 R. L. CARTER v DOOR MORTISING MACHINE Filed Dec. 2. 1925 2 Sheets-Sheet 2 Patented Mar. 15, 1927.

barren srsrss RAY L. CARTER, OF PHOENIX, NEW YORK.

DOOR-MORTISING MACHINE.

Application filed December 2, 1925. Serial No. 72,722.

This invention relates to improvements in portable mortising machines, designed espe- 'cially for preparing doors for the reception of the well-known mortise locks. 7

The invention relates particularly to improvements in the mortising devices shown and described in my pending application filed April 8, 1925, Serial No. 21,601.

The object of the present invention is to provide a hand-controlled power" driven 'mortising and routing device, in which the tool is operatedby an electric motor, the motor and tool being oscillated manually in planes to suit the lay oft-he work. A further object is to provide a novel adjustable bracket thatsupports the mortising mechanism and may be readily and quickly clamped to the edge of a door or other part. A further object is to provide a novel shoe, which directly and pivot-ally supports the motor and its housing, the said shoe being --slidable measured distances upon an arm of the bracket for progressively sinking, as well. as for withdrawing the tool from a mortise. A further, object is to provide novel means for automatically jogging the motor and tool towards the work atv each stroke of the operating handle during.- the mortising operations. A further object is to provide novel and simple means for gaging theoscil-lations of the tool and motor for varying one dimension of the mortises. And a further object is to generally improve and simplify the construction, arrangement and operation of mortising machines of this class. r 1

The various features and parts of the invention will be understood from the detailed description which'follows, and by reference to the accompanyingdrawings, in which Figure 1 is a front side elevation of the complete device mounted upon a door or like part, in the act of sinking a mortise. Fig. 2 -is'-'a bottom side view of the same- ;Fig. 3 is a' top side view of the device. Fig. 4.15 a 'rear side elevation, in which the full lines show the bracket, theshoe, and the jogging ==mechanism,as when the handle is-depressed; the dotted lines showing the motor and tool, and'a lso thejoggingpartsoperated by the -.lifting of-the handle. Fig. 5 isa horizontal section, taken on line 6-6 of'Fig. 2, Fig. 6 is a similar .section,-taken on line 66 of Fig.2. I :Fig. 7- is-a rear-end elevation of the complete machines {Fig.8 is aside, elevation of the motor and holder, and Fig. 9 isa rear-end elevation of the same. a f 1 J in the'sdrawings, the motor 2 is enclosed by-the usual cylindrical casing 2.: 2 represents the armature shaiit, which extends bee yond the front end of the motorkand. supports and drivesLthetool-ES andvits tubular shank- 8". The encased motor is supported by a hollow holder 4, Whose leg. l iis pivotally mounted upon a pin or post-'4, thesaid leg being split, as atlt, and being provided with a bolt 4 bywhich the holderma y; be adjustably clamped to thepost; The .motor and its holder are rotatably supported by a shoe 5, as best seen in Figs. 2, 8, 5 and 6; the shoe being slidably mounted upon. a

guide-arm 6 of a. bracketGQandthe lateral edges of said arm being formed With1.V- shaped grooves 6 which are engaged re: spectively by a tongue 5", and by theconical end of a set-screw 5 carried "by thelshoe, .as best seen in Fig. .7. p The bracket 6 comprises a body 6, whose opposite ends are formed with si1nilar =hollow legsflfifigwhich pivotally support differential screws 7+7,

the top ends of. said screws beingfitted with handknobsp The screws :77 =each.control a' pair of clamping members, as.7 ,.the

saidmembers being formed with threaded 7 hubs or bosses 7 that receive thecorrespond- -ing screws; .the members 7 being adapted to move towards or away, from the members 7 by the rotation of the screws 7-,7, as indicated by the directions of :the threadsv (see Figs. 2, 3 and 7)." The legs 6 and also-the corresponding membersH-W- are formed with aligning perforated lugs/7 which support similar guide-rods 8, thelatteiparah leling the screws 7-7. and having-their lower ends anchored in the legs,6' .,--By-;this

construction and arrangement, the members 7 7 register with e'ach.,;other, yjandwth bracket may be readily, quickly andrigidly clamped tovdoors or other .workuof different thicknesses. A represents;awfragment ofa door, in which a partially wrough-tianortise is shown. The shaft 2*,betweeh-the, motor,

and-the toolS, is preferably supportedbya relatively longtubular shank 2, one endof which is knurled and secured,to' tl1e motor casing by any suitable-means (not Shawn). The 'motor and tool may be oscillated or rocked in the plane of the door A, as shown in Figs. 1, it, 5' andG, by meansofa handle t) which is detachably.supportedby a threaded no I boss 1 formed at one side of the holder 4. During the mortising, the handle 9 is operated like a pump-handle. The rocking movements of the motor and tool are regulated by a pair of blocksor nuts 10, which are adiustably mounted upon a differential screw the said blocks being square for conveni one end of the screw 10.

from the outer surface of the shoe.

ience and contacting with the shoe 5, for preventing their rotation, andbeingmov able'towards and away from each other simultaneously, for decreasing and increas ing their spacings, by the turning of a knurled knob 10*, which is. mounted upon The screw 10 is which rise supported by perforated lugs 5 The ' blocks 10 gage the oscillations of a finger or stud 4, which is supported by the holder 4:,

i as best seen in Figs. 3, 5 and 6,

bolts 12", to a 7 that loosely surrounds the guide 6 and the Figs. 5,6 and 7. the opposite The motor and tool, and also the shoe are jogged or moved towards the work (A), by means of a ratchet-rack12,.which is rigidly secured to the rear face of the guide 6, and

a'pair of oppositely facing toothed dogs or pawls 1212"-, the latter being pivoted by flattened collar or sleeve 13 shoe 5. The sleeve 13 is preferably pivoted .to the shoe by a bolt 13, and is rockable in one-direction in the plane of the door and guide 6, as shown in Figs. 1,5 and 6, by means of in the leg L -of the holder (see Figs. 5, 6, 8 and 9), and engages a cam 14 which is mounted upon the sleeve 13, as best seen in I Sleeve 13 is operated in direction by .apiston or bolt 15, which 'is reciprocatable in a socket formed' n a boss 5 of the shoe, the said piston being extended (see Figs. 1, 3, a

and 6)-by aspring 15., as shown in Fig. 6.

' According to this novel arrangement of the said parts, when the handle 9 is depressed,

.as'shown in Fig. 5, the roll-er it moves over the angular face 1 1 of the cam (see Fig. 5),

' and rocks the sleeve 13 on. the pivot 13,

I into the socket.

forwardly along in the direction for forcing the piston 15 This moves the dog 12" v the rack 12 the extent of one tooth; and while the dog 12 is thus being advanced, the dog'12 holds fast to the rack and causes the shoe, the motor and the tool, to be correspondingly towards the mortising position. The liftadvanced ing of the handle9, moves the roller 14 back Pinto the bight of the cam, shown at 14* in ig. 6, and allows the tension of spring 15 {to swing the sleeve 13 V in the opposite direction" (as shown in Fig. 6), which eifects the advanceof the pawl 12, while the pawl 12' holds fast. At each rocking of the sleeve 13 by theswinging of the handle 9, the pawls E -12 are alternately jogged forwardly "tooth tooth, along the rack 12. This cor- V respon'dingly moves the tool 3 for deepena roller 14, which is pivoted ing the mortise, as explained. Owing to the peculiar shape of the cam 14 the advance of the motor at the start of each rocking movement of the handle is almost imperceptible, and the initial cutting by the tool is so slight, that danger ofstalling the tool is obviated, However, as the handle continues itsswing, the roller 1% engages the angular face 14 of the cam, which rocks the lower end of the sleeve 13 rearwardly, asindicated in Fig. 6 andeifects the gradual advance, and increases the depth of the cutting by the tool to the endof the stroke, as 7 shown by the dotted lines a; in Fig. i. This provision enables the machine to effect uniform work, and permits the handle 9 to be operated rapidly without danger of jamming the tool or distorting the mortise.

The depth of the mortises may be accu rately gaged, by means of a pin 16, which is arranged to be set 111 any one of a number 7 ofhol-es 16, which are formed in the guide clamping of the device to a door or like part, the novel and simple means for gaging the oscillations of the motor and tool, and m the extremely simple and effective cam action, by which the sleeve 13 is rocked in 'one direction, for jogging the tool towards the work and the reverse movementof the sleeve being effected by the tension-controlled member15, greatly reduces the number of working parts, and facilitatesthe ready and accurate adjustment and operation of the machine.

Having thus described what I claim,is-

1. In a mortising machine, a motor, a hoider for the motor, a tool driven by the motor, a handle for oscillating the motor and tool, a roller carried by the holder, and 1 a sleeve having a cam portion in constant engagement with the roller, said cam'portion b8111 arran "ed to effect variable forward movements of the tool during'each oscillation of the motor. I, I

2; In a door mortising machine, a motor, a holder for the motor, a tool driven by the motor said tool and said motor adapted to be oscillated manually, a roller carried by the p holder, and a sleeve having a cam portion. in constant engagement with said roller adapted to be rocked by the roller foreifecting a graduated cutting by said tool.

3. In a door mortising machine, an encased motor, a tool drivein by the motor my invention, 1

adapted to be oscillated manually by a handle carried by the motor casing, a slidable shoe upon which the motor is pivoted, a roller carried by the motor casing, and a sleeve pivoted to the shoe and rocked by said roller for eii'ecting the forward movement of the motor and tool during the mortising operations. I r

4. In a mortising machine, a bracket having a guide-arm, a shoe slidable on said arm, an encased motor pivoted on the shoe adapted to be oscillated by a hand-lever, a tool driven by the motor, a jogging mechanism supported jointly by said arm and said shoe, a rockable sleeve for actuating the jogging mechanism said sleeve having a cam portion, and a member carried by the motor casing in constant engagement with the cam portion of said sleeve adapted to effect the movement of the sleeve at variable speeds during each oscillation of the motor, and means for oscillating the motor and tool.

5. A, mortising machine including a bracket having a guide-arm, a shoe slidable on said arm, an encased motor pivoted on the shoe adapted to be jogged towards the 1 work by its oscillations, a tool driven by the motor, a mechanism for jogging the motor and tool comprising a rack and a pair of dogs, a rockable sleeve for actuating the jogging mechanism, a member carried by the motor casing in constant engagement with said sleeve adapted to effect the movement of the sleeve at variable speeds during each oscillation of the motor, means for oscillating the motor and tool, and means for gaging the oscillations of the motor for varying one dimension of the mortise.

6. In a mortising machine, an enclosed oscillatable motor, a. tool driven by the motor, a handle for rocking the motor and tool in opposite directions during the sinking of a mortise, a screw adapted for gaging the eX- tent of the rocking movements of the motor, a roller adapted to eflect the jogging of the tool towards the work when the handle is swung in one direction, and tension controlled means for jogging the tool towards the work while the handle is being swung in the opposite direction.

7. A mortising machine, including an encased motor, a tool driven by the motor, a support for the motor, a pair of screws for adj ustably clamping the support to the work, means foroscillating the motor for effecting the measured jogging of the motor and tool towards the mortising position, means for gaging the oscillations of the motor for varying one dimension of the mortise, a cam mechanism for jogging the tool while the motor is being oscillated in one direction, tension-controlled means for jogging the tool while the motor is being oscillated in the opposite direction, and means for increasing the depth of the cutting by the tool during each oscillatory movement ofthe motor. I

8. In a mortising machine, a bracket adapted to be clamped to a door or other part having a guide arm provided with lateral grooves, a shoe slidable on said, guide arm and having tongues that engage said grooves, an encased motor pivoted to said shoe and supporting and driving a mortising tool, a

finger movable with the motor casing, a

screw mounted on the shoe, gage-blocks threaded to said screw between which said finger plays adapted to be moved towards and from each other for varying the sweep of said finger, means for'oscillating said motor during the mortising operations, means for jogging the motor and tool towards the mortising position, and means comprising a cam and a tension controlled device for alternately effecting the jogging work.

9. In a door mortising device, the combination with a bracket adapted to be clamped to a door and having a guide arm formed with lateral grooves extending away from the door, of a member slidable on said arm having parts that play in said grooves, a rack carried by said arm, a sleeve pivoted to said member, a pair of dogs supported by said sleeve having teeth engaging said rack adapted to alternately jog said member towards the door by the rocking of said sleeve, a motor supported by a holder pivoted on said member, a tool driven by the motor, a' roller carried by said holder adapted to rock the sleeve in one direction, means carried by said member for rocking the sleeve in the opposite direction, and means for the motor and tool.

oscillating In testimony whereof I aflix my signature.

RAY L CARTER. i