US2870804A - Butt hinge and tenon mortiser - Google Patents

Description

Jan. 27, 1959 w. s.- HlETT BUTT HINGE AND TENoN MORTISER 2 Sheets-Sheefl 1 Filed March 26, 1956 INVENTR. l'llim/Yie ATTO R N EYB Jan. 27, 1959 w. s. HIETT BUTT HINGE AND TENON MORTISER Filed March 2e, 1956 2 Sheets-Sheet 2 IN VEN TOR.

-W//im Maw' A'ITD R N EYS United States atent O BUTT HINGE AND TENON MQRTISER William S. Hiett, Eastaboga, Ala.

Application March 26, 1956, Serial No. 573,934

This invention relates to tools used by carpenters in hanging doors, and in particular a cutting blade having sharp cutting edges on one side and on both edges slidably mounted in a clamp adapted to be mounted on the edge of a door and a hand lever for actuating the blade whereby with the clamp temporarily secured on the edge of a door the blade is actuated by the hand lever to remove material from the door to provide a recess for receiving a hinge plate.

The purpose of this invention is to facilitate hanging doors by providing a tool for cutting recesses for plates of conventional hinges whereby a recess is formed with a single stroke of a hand lever and wherein recesses for plates of butt hinges may be accurately positioned on doors and door jambs.

In the conventional method of hanging doors it is necessary to tit a door to a door jamb and after marking locations for hinges of the door relatively thin layers of material are removed with a hammer and chisel to provide means for mounting the hinge plates on both the door and jamb with the surfaces of the plates ilush with the end surface of the door and face of the door jamb. In numerous instances the hinge plates extend a considerable distance across the edge of the door, leaving only a comparatively narrow strip, and where a hammer and chisel are used to remove the material from the recess the remaining strips are often damaged and, in some cases, accidently removed. HangingI doors with a hammer and chisel requires skill as the depth of the recess must be exactly the same as the thickness of the hinge plate to prevent leaving an air space between the door and jamb or tov prevent springing the hinges.

With these thoughts in mind this invention contemplates a cutting blade, in the form of a chisel and having sharp cutting surfaces aty the ends, a frame including a clamp. for, temporarily securing the blade in position at one side of a door and ahand lever pivotally mounted on the frame and connected to the yblade for actuating the blade to remove the material from the door or jamb.

The object of this invention is, therefore, to provide a cutting blade and means for mounting the blade on one side of a door wherebythe blade's adapted to be actuated to remove material from an edge of a door to provide a hinge plate receiving recess in the edge of the door.

Another object of theinvention is to providea hinge plate recess forming tool with which hinge plate receiv-y ing recesses may be accurately formed in doors and door jambs by unskilled operators.

Another important object of the invention is to provide a tool for cutting recesses for hinge plates in doors and door jambs in which the tool is adjustable to correspond with hinges of different sizes.

A further object of the invention is to provide a mortise and tenon tool for removing material from edges of doors and door jambs to provide recesses for hinge plates in which the tool is of a simple and economical construction.

With these and other objects and advantages in view the invention embodies a substantially channel-shaped lii 2,870,804 Pftented Jan. 27, 1959 frame having a stationary -bar extended transversely across one end, a movable bar slidably mounted on the frame and adapted to be actuated by a threaded rod for clamping the door against the stationary bar, a knife blade having a sharp cutting edge on one side and similar cutting edges on the edges slidably mounted in one end of the frame, and a hand lever pivotally mounted on the frame and connected to the cutting blade for manually actuating the blade.

Other features and advantages of the invention will appear from the following description taken in connection with the drawings, wherein: y v

Figure l is a plan view of the improved hinge plate mortise and tenon mounting tool with parts broken away and with a hand lever for actuating the cutting blade shown in full lines with the'blade withdrawn and in broken lines with thel blade extended into the hinge -plate receiving recess.

Figure 2 isa longitudinal section through the mortise and tenori cutting toolv taken on line 2 2 of Fig, l and showing the device clamped on an edge of a door.

Figurey 3 is a view looking upwardly toward the under surface of the tool showing the tool with parts broken away and with the door upon which the tool is clamped shown in section.

Figure 4 is a cross' section through the movable bar of the tool taken on line 4 4 of Fig; 3.'

Figure 5 is a similar cross section through the tool taken on line 5 5 of Fig. 3 showing the movable bar mounting. J

Figure 6 is a cross section through the outer end of the frame taken on line 6 6 of Fig. 3 showing the mounting of the threaded rod on the end of which a hand wheel is-positioned.

Figure 7 is a perspective view illustrating the' cutting blade of the tool.

Figure 8 is a longitudinal section through'the intermediate part of the hand lever taken on line 8 8 of Fig. l showing a pin for retaining the hand lever in an extended position, the said pin also permitting the hand lever to fold to a nested position for packing and shipping.

Figure 9 is a perspective view showing a severingv knife for trimming surfaces of a door against which the metal parts of the frame are to be positioned to facilitate accurate positioning of the tool on the door.

Figure l0 is a longitudinal section through the severing knife taken on line 10 10 of Fig. 9.

Referring now to the drawings wherein like reference characters denote corresponding parts the improved' moi'- tise'and tenon butt hinge recess forming tool of this invention includes a cutting blade`10 having a cutting edge 11 onv one side with shortl cutting blades 12 and 13 at theY edges, a mounting frame having spaced parallel angle bars 14 and 15 connected at one end of the frame with a transversely disposed angle bar 16 and at the other with Va similarly positioned angle or end bar 17, a' threaded rod 18 threaded in a hub'19 in a flange 20 of the angle bar 17 and havinga hand wheel 21 on the extended end, the opposite end of the threaded rod being rotatably mounted in a collar 22 secured bya boltV 23 in a flange 24 of the collar to a movable cross bar 25' the angle and cross bar having horizontally disposed webs with vertically positioned legs, a hand lever 26 pivotally mounted on one end of the transversely positioned angle bar 16 with a bracket or'link 27 and pivotally connected to the knife blade 10 with a pin 28, a handle 29 pivotally mounted on an offset end 30 of the lever 26 with a pin 31, andv a stop 32 adjustably mounted on the bar 16 and positioned to be engaged by the hand lever 26 to limit movement of the handV lever and cutting blade.

The blade 10 is provided with a continuous cutting edge 11 that shaves material from a recess in an edge of 4a blade are formed of which the cutting blades 12 and 13 are positioned and as the blade is forced into the edge of a piece of material, such as a door or jamb'the'edg'eV 11 cuts the base of a recess and the sharp edges 12 and 13 cut across the grain at the ends of the recess providing relatively smooth end surfaces. By this means it is possible to `cut the material from -the edge of a door or door jamb in a single operation and a recess cut by the blade is provided with square corners and right angularly positioned side and end surfaces. A butt hinge plate is, therefore, readily positioned in the recess. The opposite end of the blade 1t) is provided with spaced openings 3S and 36 which are positioned to receive the pin 28 of the hand lever 26 whereby the position of the cutting blade in relation to the strokeV or hand leverl is adjustable.

` The cutting blade is positioned to rest upon a horizontally disposed flange 37 of the angle bar 16 and the blade is positioned to slide between vertically disposed legs 38 and 39 of the angle bars 14 and 15. The depth of a recess cut by the blade 10 is determined by the thickness of angularly shaped shims 40 and 41 which are secured between horizontally disposed arms of the angle bars 14 and 15 and the horizontally disposed section 37 of the angle bar 16, by bolts 42. The blade is retained in position upon the section 37 of the angle bars 16 with spacing plates 43 and 44 that are secured in position with cap screws 45.`

`The hand lever 26 is pivotally mounted by a pin 46 on the bracket 27 and the bracket is pivotally mounted by Ya cap screw 47 on the section 37 of the angle bar 16.

The bracket 27 is provided with a plurality of spaced openings 48 in which the-pinV 46 may be positioned to provide adjustment and with the bracket 27 free to swing about the cap screw 47 the pin 28 is adapted to travel in a straight line in alignment with the movement of the blade 10. The outer portion of the hand lever 26 is provided with an opening 49 that is positioned to register with a similar opening 50 in the end 51 of the handle 29 whereby the handle may be retained in an outwardly eX- tended position by the pin 54. The pin 54 is secured to the lever 26 with a chain 52 and the `chain is secured to th'e lever with a keeper 53. With the handle mounted in f this manner the pin 54 carried by the chain 52 is inserted through the openings 49 and 50 to retain the handle 29 in an extended position Vand when it is desired to fold the handle the pin 54 is removed and the handle folded against the lever.

The frame is provided with a bed plate 55 having elongated slots 56 and 57 therein and the cross bar 25, which is slidably mounted on the angle bars 14 and 15 is secured in adjusted positions by a cap screw 58 which extends through the slot 56 of the bed plate. An end 59 of the horizontally disposed flange of the cross bar 25 {is'jbent over so that it rests upon the upper surface of the horizontally disposed section of the cross bar and the 'opposite end of the cross bar is provided with a clip 60 which is secured to the cross bar with a cap screw 61 and the clip 60 is provided with an upwardly extended tongue 62 that is positioned to slide longitudinally on the horizontally disposed arm of the angle bar 14.

The cross bar 25 is adapted to be actuated by the threaded rod 18 and upon rotation of the rod in one ldirection the cross bar 25 clamps an object, such as a 4 tioned with inner surfaces thereof corresponding with ends of the hinge plate recess'the blade 10 is driven inwardly by the hand leverf and handle 29 whereby the material from the edge of the door is shaved from the door providing a recess which, as shown in Fig. l extends between the inner surfaces of the legs 38 and 39 of the bars 14 and l5 and from the side of the door from which the blade 10 extends inwardly to a line64 indicating the surface of the door and to the point 64. The position of Y the bed plate is such that the end surface corresponds with the line 64, providing means for protecting the material of the door at the end of the cut. The inward movement of the blade is controlled by the clip angle 32, which forms a stop, the clip angle being mounted with a bolt or cap screw 65 in the section 37 of the bar 16, and the cap screw extending through a slot 66 in a ange 67 of the stop.

The thickness of the recess or slot cut in the material of the door is controlled by the guides or gauge plates 43 and 44 which are mounted with the cap screws 45, the cap screws extending through slots 68 in the gauge plates and permitting the plates to be moved to correspond with the thickness of the cutting blade or depth of the recess or' mortiser, which is indicated by the numeral 6)A In the design shown the width of the hinge plate extends across the door, leaving a relatively narrow strip ,70 at the edge of the door, as shown in Fig. 2.

The tool may include a severing blade 71 secured by rivets 72 in a sheath or holder 73 and the extended end of the blade is provided with a sharp beveled edge 74 providing means for shaving or trimming surfaces of a door -or door jamb to facilitate accurate positioning of the tool on a door or jamb before cutting the recess.

The tool is designed to cut a mortise and tenon or hinge plate receiving recesses in the edge of a door or in a door jamb and the parts are adapted to be reversed to cut from either side of the door or jamb. The position of the hand lever and handle is also adapted to be reversed with the ends pivoted on the opposite side and the stop 32 moved to the side of the tool upon which the n handle was formerly pivotally mounted, the bar being provided with an'opening 75 that is positioned to receive a cap screw 65.

The tool is also ladapted for use in cutting recesses and the like in other devices and for Iother purposes.

It will be understood that modiiications, within the scope of the 'appended claims, may be'made in the design and arrangement of the parts without departing from the spirit of the invention.

What is claimed is:

l. A mortise and tenon forming tool comprising spaced parallel angle bars connected at one end with a transversely disposed stationary angle bar, an angle bar connecting the opposite ends of the parallel angle bars, a bed plate extended between the parallel angle bars, a movable Iangle bar slidably mounted on the spaced parallel angle bars, an elongated threaded rod rotatably mounted in the movable angle bar and extended through a threaded element carried by said parallel angle bars', a handle on the extended end of the threaded rod for rotating the rod to move the movable angle bar, selectively, against an object positioned against the stationary angle bar or away from said object, a knife having cutting edges on one side andboth edges slidably mounted on the stationary angle bar and positioned between the parallel angle bars, a bracket pivotally mounted on the stationary angle bar, a folding handle pivotally connected to said bracket and also pivotally connected to the knife ,for actuating the knife to shave material from Vthe edge of a door clamped between the stationary and movable handle.

2. In a butt hinge and tenon mortiser, the combination which comprises a pair of spaced angle bars having horizontally disposed webs with vertically positioned legs, the legs extended upwardly from the webs, a transversely disposed stationary angle bar extended across and secured to the ends of the pair of angle bars, the stationary angle bar having a horizontally disposed web positioned against the webs of the parallel langle bars and a vertically disposed leg depending from one edge and formed to be positioned against one side of a door, a movable angle bar positioned parallel to the stationary angle bar and also having a horizontally disposed web positioned against lower surfaces of the webs of the parallel angle bars and a leg extended downwardly and positioned to coact with the leg of the stationary angle bar for clamping the mortiser on a door, clips extended from the web of the movable angle bar and overlapping the Webs of the parallel angle bars for supporting the movable angle bar upon the parallel angle bars, an end bar connecting ends of the parallel angle bars opposite to the ends 4connected by the stationary angle bar, a screw threaded in the end bar and rotatably mounted in the movable angle bar, a hand wheel on the extended end of the screw for manually rotating the screw to adjust the position of the movable angle bar, a cutting blade having a sharp beveled cutting edge with short cutting edges at the sides slidably mounted on the web of the stationary angle bar and positioned between the legs of the parallel angle bars, a link pivotally mounted on the web of the stationary angle bar, yand a hand lever having a pivotal connection therein pivotally mounted on the link and pivotally connected to the cutting blade for actuating the blade to cut a recess in the edge of a door upon which the mortiser is positioned.

3. In a butt hinge and tenon mortiser, the combination which comprises a pair of spaced bars, a transversely disposed stationary bar extended across and secured to the ends of the pair of bars, the stationary bar being secured to the parallel bars and having an element depending from one edge and formed to be positioned against one side of a door, a movable bar positioned parallel to the stationary bar and also having an element extended downwardly and positioned to Coact with the depending element of the stationary bar, for clamping the mortiser on a door, clips extended from the movable bar and overlapping edges of the parallel bars for supporting the movable bar upon the parallel bars, an end bar connecting ends of the parallel bars opposite to the ends connected to the stationary bar, a screw threaded in the end bar and rotatably mounted in the movable bar, a hand wheel on the extended end of the screw for manually rotating the screw to adjust the position of the movable bar in relation to the stationary bar, a cutting blade having a sharp beveled cutting edge with short cutting edges at the sides slidably mounted on the stationary bar and positioned between the parallel bars, a link pivotally mounted on the stationary bar, a hand lever having a pivotal connection therein pivotally mounted on the link and pivotallyvconnected to the cutting blade for actuating the blade to cut a recess in the edge of a door upon which the mortiser is positioned, and a stop adjustably mounted on the stationary bar and positioned to be en` gaged by the hand lever for stopping the lever to limit the movement of the cutting blade into the edge of the door.

References Cited in the le of this patent UNITED STATES PATENTS 483,677 Scott Oct. 4, 1892 724,966 Strubel Apr. 7, 1903 944,047 Peterman Dec. 21, 1909 1,005,336 Sherwood Oct. l0, 1911 1,715,902 Countryman June 4, 1929 2,663,333 Brown Dec. 22, 1953 2,763,300 Comer Sept. 18, 1956 2,794,460 Grathwol June 4, 1957

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