US1470641A

US1470641A - Surface-dressing machine

Info

Publication number: US1470641A
Application number: US475973A
Authority: US
Inventors: Pochila Franz
Original assignee: STEVEN BABIC
Current assignee: STEVEN BABIC
Priority date: 1921-06-08
Filing date: 1921-06-08
Publication date: 1923-10-16
Anticipated expiration: 1940-10-16

Description

F. POCHILA SURFACE DRESSING MACHINE Oct. 16 1923.

Filed June 8, 1921 2 Sheets-Sheet 1 Oct. 16, 1923.

' F. POCHILA suRr AcE DRESSING MACHINE Filed June 8. 1921 2 Sheets-Sheet 2 V 50' terior end of which is threaded at 8f Patented on. 16, 1923.1

,UNITED STATES 1,470,641" ATENT OFFICE.

FRANZ roonILA, or nuoUEsNE, PENNSYLVANIA, ASSIGNOR or cits-Herr BABIG, or nuounsNn, PENNSYLVANIA.

TO' STEVEN sUnrrron-niinssme MACHINE.

Application filed June 8,

T all wkomit may concern '7 V I Be it known that I, F nA z POOHILA,'8, citizen of the"United States," residing at Duquesne, in'thecounty ofAllegheny and.

State of Pennsylvania, have'invented certain new and useful lmprjovements inSur face-Dressing Machines, of which the fol V lowing is a specification.

This invention is foratool designed partic'ularly for dressing the manhole seats of water tube boilers and for dressing the portions'of the, manhole covers which-engage said seats, but which may also be useful for I surface rather than by the useIof anabrasive device, as has heretofore beenthe common practice, and to providea machine which "may be interchangeably used on boilers or.

Son the manhole covers.

My invention is illustrated in the accent panying drawings, in which:

the machine; n h r M Fig; 2 is a section on line 11-11 of Fig. 1', l h Fig. is a perspecti eview of the cutter feeding mechanism Fig. 4 isa side elevation showing the maa part of chine supported in a vise for finishing mans hole covers, and showing the cutter turned toa different position; and

' line VI-VI of Fig. 6 is a section on Fig.1. p In the drawings, 5, indicates a supporting member having an offset portion 6 on which is formed an integral sleeve 7 ,the up er inn the inside of'thesleevemay be providedja bearing surface Rotatable within the sleeve is a shaftlO having its upper end shouldered at 11 and threaded at 12. Surround.

66 ing the upper end of the shaft lOis an exor out of the sleeve.

In a water tubeboiler, the boiler plates of the cut. in which a cutter is used for machining the Fig. l is a longitudinal section through '15 and the inner face of the offset portion chine attached to the front plate of a-boiler; F ig; 5 is a similar view showing the ma- 1921. seria1No.475,e7a Y ternally threaded bushing13, the threads of which engage the threaded portion 8 of the sleeve. The. lower end .of the bushing-f1?) .bears'against shoulder 11 on the shaft 10. A spanner nut 1e on the bushing provides a locking means therefor. A nut 12' is provided. on the threaded end 125 'By proper adjustment of the lock nut 14:, thebush if lng '13'may be turned to. move. the shaft in.

On the lower end of the shafts1Q' is a base" or. arm 15 havingguide membersld (see f Fig. 6')"on the outer face thereof, forming a dove-tail channel; :The outer end of'arm. 15 is bent to provide the laterally extending portionl'l. I '1 Guided in the dove tail channel between 7 members 16 is adovetailed block 18 which has a socket atll9 for removably holding a i metal cuttingtoolQO. 'It will befseen that the supporting member to regulatethe depth Extending into the end'rof the blo ck 18 opposite the end which carriesthe-cutter, is a threaded bore' 21. Journaled in the "laterally extending portion 17 'of'arm 15 is a threaded end adapted a shaft 22 havin p v to projectinto tlie threaded bore 21: On the outer end of shaft22 is a star wheel 23. By turning thestar wheel 23, shaft 22may be rotated to reciprocate the'cutter' block '18..

Carried by the shaft 10 between the arm the outer'faceof the gear wheel 24 and near the periphery thereof, is a pin 28 adapted toengage against the side of" arm 15 to re y tate said am and the shaft 10 when the gear wheel is rotated; 3

, For rotating the gear :wheel 2 1" there is provided ashaft 3O journaled in and passing through the portion 6 of supporting.

.. member '5, and journaled in bearing 31 supported in the sleeve- 7... 'A crank 32 is secured to'the outer end of shaftSO. To the which engages a. second pinion'ilt carried on' stub shaft 35' and which-meshes with gear wheel 2%. Thus, the gearwheel and inner end of the shaft-is fixedapinionl33 f J 'llt) a cutter', a gear wheel surrounding the spin-. dle havingan abutment for turning the head,

intermeshing gearing rotatably mounted in the oifset portion and a driving shaft for one of said gears extendingoutwardly par and provided with a,

' at each revolutionrof the head to move the cutter holder. is

allel with the spindle crank handle. I

8. In a finishing tool of the class described, the combination of a base member having a 10 fiat clamping portion and an integral ofiset portion having a spindle sleeve at right angles thereto, a spindle therein provided with a revolving head, a cutter holder slidably. I

mounted in the head and provided with a cutter, an adjusting screw therefor mounted in the revolving head and having'a terminal star Wheel, and an abutment on thebase member adapted to engage the star wheel FRA Z rooinLA.