US1706452A

US1706452A - Metal-planing machine

Info

Publication number: US1706452A
Application number: US44769A
Authority: US
Inventors: Charles G Johannesmeyer
Original assignee: LIBERTY MACHINE TOOL Co
Current assignee: LIBERTY MACHINE TOOL Co
Priority date: 1925-07-20
Filing date: 1925-07-20
Publication date: 1929-03-26
Anticipated expiration: 1946-03-26

Description

March 26 19'?9 c. G. JoHANNEsMEYr-:R 1,706,452

METAL PLANING MACHINE r Filed July 20, 1925 O ly gnvmd'ofv Charles G. Johannesmeyer @www arbol :m3

Patented Mar. 26, 1929.

j UNITED STATES PATENT-OFFICE.

CHARLES G. JoHANNRsMEYETa-or GLENDALE, onto, AssreNoR To THE LIBERTY MA- CHINE TooL COMPANY, kor HAMILTON, omo, A CORPORATION or omo.

`METAL-PLANINer MACHINE.

Application led July 20,

' n My inventionr relates particularly to mechanism for controlling the movement of and clamping the cross rail relative to thev housings. i f

Heretofore it has been customary to utilize rotatable screws, in combination with other 'suitable mechanism, for the purpose of ele- 'vating and lowering the cross rail relative to the housings. It also has been customary to provide a manuallypperative hand lever having operative connection with said mechanism, and to provide another manually operative hand lever having operative connection withl clamping mechanism fory locking and unlocking the 'cross rail relative to the housings. If by accident or mistake, the lever for elevating and lowering the cross rail is operated, previous to unclamping the cross rail from the housings, considerable damagel is occasioned the machine. Furthermore, the use of rotatable screws necessitates placing considerable mechanism vupon the top of the housings, in which position it is inaccessible for convenient oiling, repairing, cleaning and inspection, as well as causing added expenses to the assembly and kdisassembly costs of the machine. Y

The objects of my invention are to provide simple, practical and efficient mechanism .having a single manually operative lever adapted to automatically unclampthe cross rail relative to' the housings previous to forming mechanical operative connection y with the actuating driving'mechanism for elevating and lowering the cross rail ,to provide means adapted to permit a convenient and highly desirable arrangement and location of said manually operative lever and the manually operative control of the driving mechanism; to provide a convenient and easily accessible location of said driving mechanism andv to greatly simplify the machine and thereby effect considerable saving of the operators time, as well as reducing the manufacturing cost of the machine. y

My invention consists in providing a suitable shaft having spaced apart rotatable means connected therewith, said means having operative connection with vertical stationary screws rigidly fixed in tensional engagement with .the housings of the metal planing machine; in providing,`in'combina tion therewith, manually operative means having operative connection with the driving mechanism for krotating said shaftin either 1925. serial No. 44,769.

selected direction; in providing said operacross rail from said housings previous to forming operative connection with said driving mechanism for elevating and lowering l said cross rail and by the use of single manually operative control lever; to provide means whereby operation of said lever uncouples said driving mechanism yfrom said shaft simultaneously with clamping the cross rail to said housing.

My invention further consists in the construction, combination, location and arrangement of parts, as herein set forth and claimed.

In the drawing: f

F ig. -'1 is a horizontal section. taken on a line corresponding ytol-1 in Fig. 2; 1

Fig. 2 is a front elevation of a cross rail and' housings with parts broken away and showing parts in dotted lines;

` Fig'. 3 is a section taken on a line corresponding to 3-3 in Fig. 2 and showing parts broken away and showing the shaft and integral parts in plan elevation; and

Fig. 4 is a section taken on a line correspending to 4 4 in Fig. 1 and showing the shaft in side elevation and partly broken away. f

In the preferred construction of my inveni tion I provide stationary vertical screws 1 and 2, respectively, suitably fixed in longitudinal grooves 3 and r4,respectively, in housings or supporting

uprights

5 and 6 of a usual metal planing machine having cross rail 7 slidably mounted on they housings, as by

recesses

8 and 9 inthe cross rail, respectively, receiving rails 10 and 11, respectively, of

housings

5 and 6. Suitable means are providedl for retaining the rails in the recesses as by rails 10 and 1l, respectively, having

angular faces

12 and 13, respectively, receiving portions 14 and 15 of the cross rail. Retaining members 16 and 17 suitably fixed to the cross rail, respectively, engage

shouldders

18 and 19, respectively, of

housings

5 and 6 whereby the cross rail is adapted to .be elevated and lowered relative to the housings and without the possibility of the cross rail becoming disengaged from the housings. Tubular driving shaft 20, suitably mounted in bearings 21 in the cross rail, has spaced apa-

rt gears

22 and 23 fixed thereto. The

gears

22 and 23, respectively, are in meshl adapted to'be rotated. The direction of rota` tion of the motor is controlled by themovement of lever 32 whichlactuates mechanism well known in the art. f f

Circular rack 33, mounted on tubular shaft 20, is in mesh with pinion 34 keyed to shaft ,35. The pinion is maintained against horizontal movement as by being interposed between bearing 36 and nut 37 which is threaded to end 38 of shaft-.35 and screwed in en- 4gagement with washer 39 contacting pinion 34. Shaft 35 is rotatably mounted in bearing 36 fixed to web 40 of cross rail 7 by screws 4l. Thefshaft 35 is maintained against horizontal movement by nutv 37, (which retains pinion 34 in engagement with end 42 of bearing 36), and integral shaft flange 43 fitted into recess 44 in the bearing. Screw 45 integral with shaft 35 is threaded to nut 46 having rectangular base 47 fitted into rectangular recess 48 in bearing 36, whereby the nut is retained against rotary movement.

-End 49 of nut 46 is threaded to ball member 50 having rectangular projecting. end 5l adapted to be received by a usual wrench for manually sci'ewing the ball member onto the nut. Socket member 52 has concave recess 53 therein and adapted to fittingly receive convex portion 54 of the ball member having its lrectangular end A51 projecting through hole 55 in the socket member.

Inner ends

56 and 57, respectively, of clamping

arms

58 and 59 are in engagement with theouter surface of the socket member 52 whereby said socket member is free to rock on the ball member and exert an equalized pressure on

ends

56 and 57 of the clamping arms. The outer ends 60 and61, respectively, of clamping

arms

58 and 59 are adapted to be forced into frictional engagement with

shoulders

62 and 63,

respectively, of

housings

5 and 6, as by outward movement of socket member acting in

unison witharms

58 and 59 pivotally connected to web 40 by fulcrum bolts 64 and 65 threaded to the web. The bolts 64 and 65,

respectively, are received in

holes

66 and 67, respectively, adjacent the outer edges of '

y clamping arms

58 and 59 whereby the pressure exerted by ends 60 and 6l of the arms is `considerably greater than the pressure imparted to

ends

56 and 57. The bolts 64'and 65, respectively have heads 68 and 69 in engagement with convex bearings 70-and 71, respectively, having their convex portions ittingly received inconcave recesses 72 and 73, respectively, in the outer ends of

arms

58, and 59, whereby bearings l() and 7l, respectively, are vadapted to slide or rock in recesses 72 and 73 when movement is imparted to the vclamping arms. The

outer ends

60 and 61, respectively, of clamping

arms

58 and 59 are provided with detachably secured convex equalizing strips 74 aud 75 adapted to effectively engage shoulders 62 and .63, re'- spectively, of housings 5k and 6, thereby inl suring a large surface area of frictional engagement of the arms with the shoulders, and when, after a period of time, the strips are considerably worn, new strips may be substituted therefor, thereby avoiding the necessity of replacing the clamping arms at frequent intervals. Y

Clutch7 6 is mounted on projectingend 26 of tubular shaft 20 as by pin 77 extending through longitudinal slots 7 7 in the tubular shaft, and extending through hole 78` in inner shaft, whereby the tubular shaft is fixed to shaft 78 and whereby the clutch fixed to shaft 78 is adapted to be slid in and out of clutching engagement with teeth 7 9 integral with driven gear 27. V

Manually operative hand lever 8O suitably pivotally mounted in casing 81 has fork 82 received by circumferential groove 83 in clutch 76 whereby the clutch and shaft 78 is adapted to be simultaneously moved horizontally, thereby imparting horizontal motion to circular rack 33 which also is slidably mounted on tubular shaft 20 and fixed to shaft 78 as by pin 8 4 being received by longitudinal slots at 20 in the tubular shaft. Pin 84 extends through and is .fixed to shaft 78, whereby manual operation of hand lever' 80, simultaneously with the movement of clutch 76, is adapted to actuatepinion 34ixed to shaft 35, thereby locking or unlocking cross rail 7, relative to the housings, depending upon the directional movement of lever 80.

The mechanical operations of my invention are as follows:

Assume the mechanism is positioned as shown in Fig. l and that lever 32 is positioned so that motor 3l is disconnected from outside' source of electric supply.

' Hand lever 32 is manually operated for the purpose of imparting the required direction of rotation to motor 31 whereby, through pinion 28, rotary movement is imparted to Y driven gear 27 rotatably mounted on tubular l driving shaft 20. Manually operative hand lever 8O is then operated andclutch 76 (slidably splined to tubular driving shaft 2O by key 77 is slid into clutching engagementlwith teeth 79 integral with driven gear 27,

whereby previous to the engagement of clutch 76 with clutch teeth 79, circular rack 33. is moved horizontally and being in mesh-with Cil vzo

pinion 34 causes rotation of shaft. 35 having screw 45 integral therewith andthreaded to nut 46 threaded to ball member 50, whereby the ball member' is caused to mo've inwardly, thereby releasing the outward pressure of socket member 52y from

ends

56 and 57, respectively, of clamping arms' 58 and 59 and releasing the frictional engagement of

outer ends

60 and 61, respectively, of clamping

rarms

58 and 59 with

shoulders

62 and 63,

respectively, of housings and y6. Iminediately after the clamping pressure of

arms

58 and 59, respectively, with

housings

5 and 6 is released, clutch 76 enters meshing engagement with teeth 79 of driving `gear 27, and pin 7 7 imparts rotary movement to shaft 78 and to tubular shaft20jwhereby rotary movement is imparted to

gears

22 and 23, fixed to the tubular shaft, and'respectively in mesh with nut gears 24 and25, respectively, threaded to vertical screws l and 2. The nut'gears are secured against vertical movement relative to the cross rail and thereby impart a vertical directional movement to the cross rail dependent upon the direction of rotation of motor 31. When the cross l Y rail is properly positioned relative to the yer housings hand lever is manually operated for disengaging clutch 76 from clutch teeth 79 of driven gear 27 whereby immediately after disengagement of the clutch from the clutch teeth socket member 52 is forced outwardlyin engagement with ends 56 and 57 of clamping

arms

58 and 59, thereby clamping the cross rail relative to the vhousings as is positioned, as shown in Fig. 1, hand lever 32 is actuated for forming electrical connections for rotating motor 31 driven gear 27 merely rotates on tubular shaft 20 without effecting rotation of the tubular shaft or causing damage to the'mechanism, in which case, after motor 31 is rotating previous to the engagement of clutch 76 with clutch` teeth-79 of the driving gear, it is necessary to manually operate hand lever 80 forforming engagement. of the clutch with the clutch teeth and which operation of hand lever 80 lautomatically unclamps the cross rail from the housings previous to engaging the clutch with the clutch teeth ofthe driving gear.

Also, when clutch 76 is .in meshing engagement with clutch teeth'79`of driven gear'27 and hand lever 80 accidentally is operated for disengaging the clutch from the clutch teeth previous to manual operation of hand lever 32 for stopping rotation of motor 31, the cross rail is clamped to the housings and driven gear 27 is permitted to rotate harmlcssly on tubular shaft 2O until hand lever 32'is operated for disconnecting motor 31 from the outside source of electric supply'.l

It is thereforey apparent that I have in-vl` mechanism.

Another advantage of my invention is that the use `of the usual rotatable screws necessitates mechanical connections with mechanism4 positioned on the top of the vertical housings and in which position considerable rangement of the manually operative control levers whereby an operators time is saved, v

vas well. as considerably reducing the manufacturing cost ofthe machine.

While I have chosen to illustrate the form and construction of my invention by the herein drawings and explanations of the same I desire to emphasize the fact that the form and explanations as relate thereto are not intended to include all of the structures in which my invention may be incorporated. It

is, therefore, understood that my invention resides in the combination, arrangement and location of parts and in the details of construction, as hereinafter claimed, and that changes in the precise embodiment of the nivention can be made within the scope of what is claimed without departing from the spirit of the invention.

What I claim as new and desire to secure by Letters Patent is:

f1.r Inra metal planing machine havinga pair of spaced apart vertical housings, a crossv rail slidably mounted thereon, means for elevating and lowering saidrcross rail on said housings, manually operative means controlling said means, means for clamping said cross rail tosaid housings and to automatically unclamp it therefrom previous to actuation of said cross rail elevating and lowering means, and comprising a driving shaft mounted on said cross rail, a clutch fixed to said shaft and operatively connected with said manually operative means, aV circular rack slidably mounted on said shaft and operatively connected with raidv manually operative means, a pair of fulci'um arms adapted to engage said housings, respectively, and means operatively connecting said arms with said circular rack whereby said arms, respectively, are actuated in clamping engagement with said housings.

In a metal planing machine having aV pair of spaced apart supporting housings, a cross rail slidably mounted thereon, a tubular driving shaft rotatably connected with said cross rail, a pair of spaced apart gears fixed to said shaft, an inner driving shaft within said tubular shaft, a driving gear rotatably mounted on said tubular shaft and having clutch teeth integral therewith, a clutch slidably mounted on said tubular shaftl adjacent said driving'- gear and secured against rotary movement thereon. and fixed to said inner driving shaft, manually operative means adapted to slide said clutch into engagement with said teeth, a circular rack slidably mounted on said tubular shaft and secured against rotation thereon and fixed to said innerdriving shaft, a shaft rotatably mounted in said cross rail and retained against longitudinal movement, a pinion gear keyed to said last shaft and in permanent mesh with said rack, a screw integral with said last shaft, a nut threaded to said screw and retained against rotation, al convexinember threaded to said nut, a socket rockingly mounted on said convex member, a pair of arms pivotally connected to said cross rail and having their outer ends, respectively, adapted to engage said housings and having inner ends in contacting engagement with said socket member whereby longitudinal movement of said inner shaft is adapted to engage said clutch with said clutch teeth and clamp and unclamp said cross rail relative to said housings, a vertical stationary screw fixed to each Y of Ysaidv housings, means connecting said last screws and said first gears whereby rotation of said first gears is adapted to elevate and lower said cross rail and driving means having operative connection withsaid ldriving gear andl operatively connected with said manually operative means whereby operartion of said manually operative means is adapted to iinclamp said cross rail relative to said housings previous to meshing saidy clutch with said clutch teeth, substantially as and for the purposes specified.

3. In a metal planing machine having a pair of spaced apart supporting housings, a cross rail mounted thereon, a tubular driving shaft rotatably connected with said cross rail,an inner driving shaft within said tubular shaft, a driving gear rotatably mounted on said tubular shaft and having clutch teeth tliereon,'a clutchfslidably `mounted on said tubular shaft adjacent said driving gear and secured against rotary movement thereon and fixed to said inner driving shaft, operasaid inner driving shaft, a shaftrrotatfably mounted in said cross rail andretained against longitudinal movement, a pinion gear keyed to said last shaft and in permanent mesh with said rack, a screw integral with said last shaft, a nut threaded to saidscrew and retained against rotation, a convex meinber threaded to said nut, a socket rockingly mounted on said convex member, a pair of arms pivotally connected to said crossvrail and having their outer ends, respectively,y adapted to engage said housings and having inner ends ,in contacting engagement with said socket member whereby longitudinal movement of said inner shaft is adapted to engage said clutch with said clutch teeth and clamp and unclamp said cross rail relative to said housings and means to elevate and lower said cross rail.

4t. ln ak metal planing machine havingV a pair of spaced apart housings, a cross rail slidably mounted thereon, a tubular driving shaft rotatably connected with said cross rail.l a pair of spaced apart gears fixed to said shaft, an inner shaft within said tubular shaft and secured thereto, a driving gear rotatably mounted on said tubular shaft and having clutch teeth integral therewith, a

clutch slidably mounted on said tubular shaft and secured against rotary movement thereon and positioned adjacent said driving gear and fixed to said inner shaft, manually operative means adapted to slide said clutch into engagement with saidv driving gear clutch teeth, a circular rack slidably mounted on said tubular shaft and secured against rotation thereon and fixed to said inner shaft, a shaft rotatably mounted in said cross rail and retained against longitudinal movement, a

pinion keyed to said last shaft and in mesh with said rack, a rotatable screw integral with said last shaft, a nut threaded to said rotatable screw and retained against rotation Y thereon, a convex member threaded to said nut, a. socket roekably mounted on said con-V vex member, a pair of arms pivotally connected with said cross rail and having their outer ends,'respective1y, adapted to engage said housings and having their inner ends in contacting engagement with said socket niember whereby longitudinal movement of said inner shaft and said rack is adapted to clamp and unclamp said cross rail relative to said housings, a vertical stationary screw fixed to each of said housings, means connected with,

llO

to said housings, and means for rotatingsaidV driving shaft and operatively connected with said manually operative' means whereby operation of said manuaily'operative means is adapted to simultaneously lunclamp said cross rail relative to said housings and elevate and lower saidvcross rail relative to said housings.

5. In a metal planing machine having a pair of spaced apart vertical housings, a crossvrail slidably .mounted thereon, a'tubular driving shaft rotatably mounted in said cross rail, a pair of spaced apart gears fixed to said shaft, an inner shaft slidably mounted within said tubular shaft and' secured against rotation relative thereto, a driving gear rotatably mounted on said tubular shaft and having clutch teeth integral therewith, a clutch slidably mounted on said tubular shaft and secured against rotary movement thereon and positioned adjacent said driving gear clutch teeth and fixed to said inner shaft, manually operative means adapted to slide said clutch into engagement with said driving gear clutch teeth, a circular rack slidably mounted on said tubular shaft and secured against rotation thereon and fixed to said inner shaft, a shaft rotatably mounted in said cross rail and retained against longitudinal movement relative to saidycross rail, a pinion keyed to said last shaft and in permanent mesh with saidrack, a rotatable screw integral with said last shaft, a nut'threaded to said rotatable screw and retained against rotation, a pair of arms pivotally connected to said cioss rail and having their outer ends,l

respectively, adapted to engage said housings and means connected with said vrotatable screw and adapted to lengage the inner end of said arms whereby longitudinalmovement of said inner shaft is adapted to clamp and unclamp said cross rail relative to said housings, a vertical stationary screw fixed to each of said housings, means connected with said last screws and said first gears, respectively, whereby rotation of said first gears is adapted to elevate and lower said cross rail relative to said housings, and drivingmeans mounted on said cross rail and operatively connected with said driving gear whereby Voperation of said manually operative means is adapted to unclamp said crossrail relative to said housings previous to operatively connecting said driving gears for elevating and lowering said cross rail.

6. In a metal planing machine having a pair of spaced apart vertical housings, across rail slidably mounted thereon, a tubular driving shaft rotatably mounted on said cross rail, a pair of spaced apart gears fixed' to said shaft, an innerv shaft slidably mounted within said tubular shaft and secured against rotation relative to said tubular shaft, a vdriving gear-rotatably mounted on said tubular shaft and liaving'clutch teeth integral therewith, a clutch slidably mounted on said tubular shaft and secured against rotary movement thereon and positioned adjacent said driving gear teeth and fixed to said inner shaft, manually operative means adapted to slide said clutch into and out of engagement with said driving gear clutch teeth, a circular rack slidably mounted on said tubular shaft and secured against rotation thereon and fixed to said inner shaft,a

shaft rotatably mounted in said cross rail and retained against longitudinal movement relative to said cross rail, a pinion keyed to said last shaft and in mesh with said rack, a ro'- tatable screwintegral with said last shaft, a nut threaded to said rotatable screw andretained against rotation relative thereto, a pair of arms pivotally connected to said cross rail and having their outer f ends, respectively, adapted to engage said housings and means connected with said rotatable screw and adapted to engage the inner end of said arms whereby longitudinal movement of said inner shaft is adapted to clamp and unclamp said cross rail relative to said housings, a vertical stationary screw fixed to each of said housings, means connected with said last screws and said first gears, respectively, whereby rotation of said first gears is adapted' to ele.- vate and lower said cross rail relative tosaid housing, driving means mounted on said cross rail and operatively connected kwith said driving gear whereby operation of said manually operative means is adapted to unclamp said cross rail relative to said housings previous to operatively connecting said driving gear for elevating and lowering said cross rail, and a manually operative lever positioned adjacent said manually operative means whereby the directional rotation of said driving means is controlled. Y

7. In a metal planing machine having a pair of spaced apart housings, a cross rail slidably` mounted thereon, a tubular driving shaft rotatably mounted in said cross rail, a pair of spaced apart gears fixed to said shaft, an inner shaft slidably mounted in said tubular shaft and secured against rotation relaf against rotation thereon and fixed to said inner shaft,a pair Aof arms pivotally connected to said cross rail and having their outer ends, respectively, adapted to engage said housings in clamping relation and having means operatively connected with said circular rack and the inner ends of said arms whereby operation of said manually operative means is adapted to clamp and unclamp said cross rail relative to said housings, a. vertical screw fixed to each of saidhousings, a nut threaded to each of said screws and ro- -V tatably secured in said cross rail, a gear fixed to each of said nuts and in mesh with said first gears, respectively whereby rotation of said tubular shaft is adapted to elevate and lower said cross rail relative to said housings, driving means operatively connected with said driving gear whereby operation of said manually operative means is adapted to rotate said tubular shaft and said mechanism being arranged so that operation of said manually operative means is adapted to unclamp said cross rail from said housings previous to operatively connecting said driving means with said tubular shaft for elevatingand' lowering said rail.

8. In va metal planing machine, a support# ing housing, a cross rail slidably mounted thereon, a tubular driving shaft rotatably connected with said-cross rail, a plurality of spaced apart gears fixed to said shaft, an in-` ner driving shaft within said tubular shaft, av driven gear rotatably mounted on said tubular shaft and having clutch teeth integral therewith, a clutch slidably mounted on said tubular shaft adjacent said driven gear and CHARLES G. JOHANNESMEYER.