US1473169A - Address-printing machine - Google Patents

Description

Nov. 6, 1923.

E. D. BELKNAP ADDRESS PRINTING MACHINE Filed March 22. 1922 4 Sheets-Sheet 1 E. D. BELKNAP ADDRESS PRINTING MACHINE Nov. 6 1923.

Filed March 22, 1922 4 Sheets-Sheet2 HHHHHHIHIHD EI E. D. BELKNAP ADDRES S PRINTING MACHINE Nov, 6 1923.

Filed March 22 1922 Tim \\\\w '4 Sheets-Sheet 5 Q Q R.

I Patented Nov. 3, 1923.

, entrain snares 11.47am PATENT @FFHQE.

D. BELKNAP, 0F SPRING LAKE, NEW JERSEY.

ADDRESS-PRINTING MACEINE.

. Application filed March 22, 1922. Serial No. 545,659.

To all whom, it may concern:

Be it known that I, EDWIN D. BELKNAI, a citizen of the United States of America, residing at Spring Lake, in the county of Monmouth and State otNew Jersey, and having a post-office address at 46 West 23rd Street, New York city, N. Y., have invented certain new and useful Improvements in Ad: dress-Printing Machines, of which the following is a specification.

My invention relates generallyfto printing apparatus employing a series of stencilling address bearing strips as an element ofthe printing mechanism, and more particularly comprises a portable. machine designed to cooperate. with a series of stencilling cards of the type such as are described, for instance in Patent No. 1,256,509, granted to me February 19, 1918. While particularly adapted to print a series of names and addresses on envelopes or other mail matter, my invention may be employed in other classes of printing-operations. The best form of appa-ratus embodying my invention at present known to me is illustrated in'the accompanying four sheets of drawings in which- Fig. 1 is a planview of the machine ad-,

justed to handle the type of cards such as described in my above-mentioned prior patout having an extension on one side of the frame. or non-stencilling portion, on-which is written or printed various data relating to the person whose .name and address is to he stencilled by the stencilling portion of the card. a series of such, cards being shown in operative positions in the machine in this. figure of drawing and one of said cards being partly broken away.

Fig. 2 is a similar view of the machine (with part of the feed table broken away) adjusted to operate with the narrower cards having no frame extension, and provided with an attachment for carrying a roll of paper onwhich the names and addresses may be printed, in list form, if desired.

Fig. 3, is a side elevation of the machine shown in Fig. 2.

Fig. 4..is a longitudinal section on a vertical I plane on line 4-4 of Fig. 1, parts being broken away and others omitted to show the inking and card-feeding mechanism more clearly.

Fig. 5 is av cross-section, on an enlarged. scale. on line 5-5 of Fig. 3, with part of the feed table broken away.

Fig. 6 is a view similar to Fig. 4, except that the inking and card feeding mecha- Fig. 9 is a detail of a. portion of the cardhandling mechanism, partly in plan view. and partly in horizontal sect-ion on line 9-9 of Fig; 4.

Fig. 10 is a vertical cross-section on line 10-10 of Fig. 3, showing the cylindrical ink fountain and its driving gear. i

Fig. 11 is a side elevation of said ink fountain on an enlarged scale. I

Fig. 12 is a cross-section of the same tak en on line 12-12 of Fig. 11.

Fig. 13 is a detail axial cross-section of the ink fountain wall on a still larger scale.

Fig. 14. is a detail cross-section on line 11-11 of Fig. 10. showing theadjustable eccentric bearing for the ink fountain.

Fig. 15 is a detail side view of the operating hand crank of the machine, and a cross- -.section through the driving shaft taken on the line 15-15 of Fig. 5.

' Fig. 1 6 is a detail of the driving pawl car ried by said handle, and

Fig. 17 is another detail of the same, being an edge view'thereof.

Fig. 18 is an enlarged sectional view of the friction stop for the cards, located in the card guides.

Fig. 19 is a detail end view of the adjustable card guide rail showing-the two mountings for the same, and

Fig. 20 is a perspective view of the card feeding slide. a

Throughout the drawings like reference characters indicate like parts. 1 is the main frame having supporting legs preferably provided with'rubher tips 2.2, so that it may rest on a desk or table without scratching the surface thereof. 3 is the card holding magazine at one end of the frame and 4 the card receiving magazine at the other end. Cards 5, 5, placed in magazine 3 are fed in succession out from the bottom of the magazine, by a reciprocating claw feed comprising claws 6, G, on a plate or slide 7 (see Fig. 20), along card guides 8, 8 (see Figs. 1. 2. 4-. 5, 8, 10. 18 and 19) to receiving magazine 1. f

hiking and impressionmechanism. I

its

- to the envelope and so print the address ,opposite directions as indicated rows m Fig. 4 and at the same speed, and the thereon.

13 is the ink fountain of cylindrical form and peculiar construction hereinafter to be more fully described. This is mounted on a shaft 20 'ournaled in the eccentric sleeve 56 which s'feeve is mounted with easy friction fit in the lugs 58, 58, extending upward from the coverplate 76 which rests upon the upper portion of the main frame and is fastened thereto by suitable screws, as

shown. On the other end of shaft 20 is keyed the gear-wheel 19 which meshes with a corresponding gear wheel 18 (see Fig. 3) which is fast on shaft 16 journaled in swing ing frame 22 which faineis hinged on shaft 20. At the other end of shaft 16 is the inking sector 9 which has its curved suface 9 formed of any suitable partially absorbent material adapted to pick up ink from the circumferential surface .of the ink fountain.

One end of the eccentric sleeve 56 is provided with a capstan head 57' by which the sleeve may be slightly rotated so as to cause its eccentricity to regulate the pressure between the ink fountain 13 and the inking platen sector surface 9. It is evident that the above described inking -mechanism is removable'as a unit by removing .the plate 76 on which it is mounted. The inking mechanism is driven by means of the pinion 17 also fast upon the shaft 16 and meshing with the gear 15 which is mounted upon shaft 14 and has a projecting hub on which is mounted the crank arm 26, these parts being held to gether'by any suitable device such as cap screw 25 (see Fig. 5), the crank arm 26 bein: rotatable upon the hub of the gear 15 unless locked to said gear by a ratchet mechanism hereinafter to be described. The gear 15 is also freely rotatable upon the shaft 14, but back of said gear 15 is a gear 21 of a diameter less than that of the gear 15, but the same as that of the gear 18, which gear 21 is in mesh with the gear 18 and is ast upon the shaft 14. Upon the other end of the shaft 14 is mounted the impression platen sector 10 whichcooperates with the rotating in inking platen sector 9. the two by the ,ar-'

two sectors. being angularly disposed upon their respectiveshafts 14 and 16 so that their surfaces will be in contact during the half of each revolution. Upon the surface of an inwardly projecting hub of the gear 21 is a slight depression into which fits the springvheel 15, it is evident pressed locking roller 37 shown in Figs. 3 and 5, which impression-sectors in the positions shown in acts to hold the inkingand Fig. 4 with their surfaces out of contact whenever the driving ratchetmechanism is out of operation. The swinging frame 22 rests by gravityon the supporting spring 24 and is forced down upon the same so as to crank and pivoted thereto, as is clearly shown in Figs. 15 and 16, and engaging notches 27, 27, in gear wheel 15. These notches'27, 27, being disposed 180 degrees apart around the circumference of the gear that every vibration of the crank 26 through- 180 degrees will produce a half-revolution of gear 15 and a complete revolution of the above described inking mechanism as the number ofteeth in gear 15 is double that of the teeth in the pinion 17, which pinion 17 is the driving member of the gearing operating the ink fountain, ink platen and impression sector. The extentof oscillation of crank 26 is limited by the stops 40, 40, mounted on main frame 1. t

. Card feed and handli'ltp mechanism.

The slide 7 carrying the claws'6, 6, for engaging the bottom card in magazine is connected by connectin rod 38 equipped with adjusting turn buc le 39 to crank 26. one end of the connecting rod being pivoted to said crank and the other end to the lug 41 projecting from slide plate 7. evident, therefore, that every complete oscillation of the crank 26 which produces a complete cycle of operation of the inking and impression mechanism will also produ-e a complete reciprocation in and out. of the claw feed so that the bottom card will be pulled out from magazine 3 and started on its travel through the guideways 8. 8. to the inking and impression mechanism. It then at each complete oscillation of the crank an envelope or other article is slipped .in on feed table 12 and between the inking and impression sectors when they are in the position shown in Fig. 4. the complete cycle of the inking and impression mechanisms will press'the ink platen down upon the card within its field of operationsand drive some of the ink through the. stencil card upon the envelope and thereafter push the card along-loward the receiving magazine 4 and expel theprintcd envelope. "Repetitions of this operation will result in the printing or addressing of a series of envelopes, each one bearing the name and address borne by one of a series of the stencil cards. If, however, itis desired to print upon the same sheet of paper or other article the legend borne by one of the stencil cards in two or more places, or to print a series of envelopes or sheets with the same legend, I employ a repeating or duplicating attachment which consists essentially of a retaining claw 62 mounted on theouter end of a lever 61 which lever is pivoted at 71 upon an arm adjustably attached to the sliding plate 7 by means of the pin and slot connection 7 3. During the normal operation of the machine as before described the re taining claw 62 is held up in the position shown in Fig. 6 so as not to engage the cards passing under it. It is so held by the spring 69 which is under tension between the rear end'of the lever 61 and the tail of the pawl 67, which pawl is pivoted on the arm 60 and engages a notch in the under edge of the lever 61. If, however, the projecting end of the lever 61 and the retaining claw 62 carried thereby are forced downward by pressure ,on the projecting" lug 72, the spring 69 swings pawl 67 out of. line with the notch 70 and under the full-faced portion of the under edge. of the rear end of lever 61 so that on releasing the pressure of the hand from lug 72 the retaining claw 62 is held down in the position shown in Fig. 4 in which it rests upon the stencilling portion of the card and engages an inner edge of the rear portion of the frame of said card. Thereupon during the return oscillation of the actuating crank 26 the card which is within thefield of operations of the inking mechanism instead of being driven forward by the advancing movement of the cards behind it coming from the magazine 3 is pulled back by said retaining claw, and on its backward travel also drives back the card behind it which is in the grasp of the feed claws, 6, 6, into the magazine'under the stack of cards in the magazine, -which stack is held up clear of said returning card by the raised, curved extensions 77 77 of the feed claws 6, 6. Continued oscillations of the driving crank 26 will, therefore, cause these two cards to reciprocate back and forth, the forward card again and again cooperating with the inking mechanism and duplicate printing therefrom resulting. The stack of cards in the magazine are not otherwise operated upon by the feed claws 6, 6,

because theyiare held up abovev the plane of 65 68 projecting upward the upper surface of the card held by the feed claws andv the working faces of said claws do not extend above said upper surface of the card upon which the claws are operating; -When the normaloperation of the machine is to be resumed, this is accomplished by pressin down upon the lug Trom the tail of pawl 67 until said pawl is swung into line with the notch 70, whereupon the spring 69 pulls the lever 61 back into'the position shown in Fig. 6 and the parts remain locked in this position until the operator again presses upon the lug 72 to set the apparatus in the duplicating position as before described.

During the normal operation of the machine each card fed out into the field of operations of the inking apparatus is held there, until' it is seized by the inking and impression sectors, by the action of the friction stop 59 shown in detail in Fig. 18. When the duplicating attachment is operatingas last above described, however, the friction of this stop 59 is not sufficient to prevent the reciprocation ot' the card back and forth along the guideways as previouslyv Each card: after being forced described. out'from the card magazine 3 rests, during the return movement of the feed claws 6, 6, exposed to the view of the operator, and if for. any reason he does not wish to print from that card he can skip it by disabling the train of gearing which drives the inking mechanism. The next operation of the card feeding mechanism will then drive said cards beyond the field of operations of the inking mechanism onward to the receiving magazine 4. The disabling of the gearing for the inking mechanism is accomplished by throwing pawl 28 out of--operative position so that thev will no longer en'- gage the notches 27, 27, on the gear 15. This is done by pressing down on the lug or thumb piece 36 on the end of a cam lever 33 pivoted at 34to the operating lever 26 and having at its inner end a cam surface which cooperates with pin 30 carried by the arm 29 made rigid with pawl 28, as indicated in broken lines in Fig. 15. The motion ofcam lever 33 is limited by the pin and slot mechanism 35 as shown in Fig. 15. The lever is normally held in the position indicated in full lines in Fig. 15 by the spring 32 which is under tension between its point of attachment to the pawl arm 29 at 31 at one end and its point of attachment to cam lever 33 at its other end. That spring servesthe double purpose of tending to force the pawl 28 into operative position and to hold cam lever 33 in corresponding normal position shown in full and dotted lines in Fig. 15. And this normally keeps the cam surface of lever 33 out of engagement with pin 30 as shown in Fig. 16 so that the pawl is operative. It is only while the operator keeps his thumb upon the thumb piece 36 while operating the crank 26 that the pawl is disabled and this card-skipping operation is possible. As soon as the operator re the return movement of pawl 28.

&

backward movement of said gear during 74 is a cut-away portion on ,the inside of the card guides to permit the envelope to be forced up against the inking sector 9. To render the apparatus usable with cards of different widths. the card magazine 23 is formed of two portions. one of which 42, is stationary, being mounted upon the fixed guide-rail 44, while the other half. 43, of the magazine, is adjustable toward and from the first half by reason of the fact that it is mounted on the adjustable guide-rail which may be supported either upon a pillow block 46 at one end and at theeother by set screws passing thru holes 78, 78, in plate 76, or

" maintained in anotherposition further removed from the rail 44 by the supporting bracket 47 (see Figs. 1

and 19) and by set 1 screws 79. 7!), passing through other holes in plate 76 as shown in Fig. 1. \Vhen the parts are in position last described and shown in Figs. 1, and in full lines'in Fig. 1.). the apparatus will handle the card having the extension frame shown in Fig. l on which extension frame any desired data may be written orprinted. \Vhen the parts are in the position shown in Fig. 2. and in broken lines in Fig. 19, the apparatus will handle the narrower cards without the extension t'rame shown inoperative positions in Fig. 2. v

The particular Construction of the cylin drical ink .t'ounta'in 1.3 is illustrated in detail in Figs. 11, 12 and 13. A portion of the circumferential wall of the fountain is provided with perforations 48, 48, and around this portion is stretched one or more layers of absorbent material, such as layers 'of ehamois 4-9, 49. which are permeable by and absorbentot the ink contained in the fountain interior. As this material is apt to be of low tensile strength and subject to warping and distortion. l preferably place a layer of stronger fabric 50, such as linen. between the two layers of the chamois. One end of this composite fabric is fastened to'a stationary rod 51 set in slots in the end walls of the fountain. opposite a depression in the circum't'erential outer surface of the foun; tain wall. and the other end is fastened to a swinging rod 52 pivoted in slots 53, in the end walls of the fountain and designed to normally rest in a depression 54 in the circumferential wall. \Vhen the swinging rod :72 is snapped down into position shown in Fig. 12. it places the fabric. covering of the ink fountain under tension and holds it securely in position. \Vhen the fabric. is to be removed for cleaning or renewing an outwardmovement of the rod 52 will liberate the entire covering from engagement with the fountain. 57, represent filling openings in one of the end walls of the fountain which may be closed by the cap screws 80.

To fill the fountain it is rotated into a position such that these'two openings are in the same horizontal plane and the cap screws removed. The ink can then be poured in at one opening and the air can escape from the other. The screws are then replaced and the fountain put into service.

81 represents a bracket which may be attached to one end of the machine to support a roll of paper ribbon 82. This-ribboncan be threaded under'the machine over the table 12 and through the inking mechanism. If then the machine is operated in the normal mannerall the legends borne by the.entire series of stencil cards in the magazine will be printed in list form 0 the paper ribbon 82. i The notch in the hub of the'gear 21 coopcrating. with the spring locking roller 37 shown in Figs. 2, 3 and 5 is so located that 85 when the roller rests in this depression the parts of the inking mechanism will be in the position shown in Fig. 4 with the surfaces of the ink ,platen and impression platen out of contact one with another so that no inequality in the ink films may be produced, as otherwise might happen if they were left standing in contact one with another when the machine was not in use.

The purpose of the yielding spring mounting of retaining claw 62, shown in detail in Fig. 9 is to allow for the over running of 1 said claw relative tothe inking sector 9 dur-J' ing the outward movement of said claw. This claw must reach out far enoughto seize the card which is within the grasp of the inking machanism and, when so. extended, it will, at the extremity of its forward motion, strike the rear face of the cutaway part of inking sector 9, especially when in its raised, non-operative adjustment, as shown in Fig. 6. To allow for this and prevent stoppage of the machine, or breakage of the parts by such collision the-.elaw 62 has a sliding connection with lever 61 by meansof pin 63 set in the lever and passing through a slot in the shank of the claw, and pin 64 set in the shank of the claw and passink through slot 65 in the le 'er 61. Tension spring 66 connected to, and under tension between. the two pins holds the claw 62 normally extended as shown in Fig. 4. When, however, the claw runs against the platen 9. during the ,latter 1 part of each outward stroke. the spring yields and the parts assume the position shown in Fig. 6. -& The general mode of use of my invention is as follows: The stencilling cards. which have been writtenon by an ordinary typewriting machine. are kept in suitable 125. repositories and when it is desired to send out a circular or other matter to some or all of the cusomers whose names and addresses are recorded onsaid cards, they are taken out and placed in magazine 3 and the D emma 5 machine set in operation by a person graspoperation, the combination of a magazine ing the handle of oscillating crank 26 with for the cards, an inkin mechanism, guideone hand and oscillating it back and forth ways for the cards lea ing from the maga from contact with one of the stops zine through they inking mechanism, a thru 180 degrees to contact with the reciprocating mechanism adapted to feed other stop 40, thus feeding out the cards the cards successively from the magazine from the bottom of the magazine 3 in along the guideways through the inking succession. If the operator desires to mechanism, and means for retaining any address an envelope to each one of the particular card in said feed mechanism and persons whose names appear on! as they pass from magazine to inking field of operation of the inking mechanism mechanism, he feeds in an envelope on table during a plurality of cycles of said mecha- 12 to the inking mechanism with the other nism, whereby a plurality of impressions hand. If he desires to skip a customer from said stencilling card may be obtained. whose name and .address appears upon a 3. In an address printing machine cmthe cards guideways and reciprocating itwithin the cardvisible between the magazine and the ploying stencilling cards 'in the printing inkin mechanism he presses thumb piece operation, the combination of a magazine 36 with the thumb of the hand grasplng for the cards, a rotary inking mechanism,

the handle of the crank 26, thereby. disa reciprocating mechanism adapted to feed.

ablingthe mechanism for driving the inking the cards successively from the magazine and impression apparatus, leaving the parts thru the inking mechanism, and means for of the latter in the position shown in Fig. 4, retaining any particular card in control of and as a result that card is pissed on without said feed mechanism and in reciprocation any printing operation ing performed within the field of operations of the inking in cooperation therewith. v mechanism during a plurality of cycles of If the machine is being used to address a said mechanism, whereby a' plurality of bill, which may require printing of the name impressions from said stencillingcard may of the person being billed at two points, he obtained. 7

the retaining claw'of the card handling 4. In an address printing machine emapparatus is' thrown in on each alternate ploying stencilling cards in the printing op operation so that each card iS h in erat-ion the combination of a magazine for field of the printing mechanism during two the cards, an inking mechanism, guideways cycles thereof, and the operator adjusts the adapted to conduct the cards from the magbill on the table 12 so that the successive azine through the inking mechanism, arepr ntings are produced at the proper points ciprocating claw adapted to grasp the bot-. on the bill.

While it have described my invention as along the guideways to the inking mechaoperating upon stencilling'cards, obviously nism, and retaining claw connected to could be used with other stencilhng address said reciprocating claw and adapted, when bearing strips and certain portions f it properly adjusted,'to grasp the card in the tom card in the magazine and force it out could be employed with other forms of field of operations of the inking mechanismp i gb sh details of mechanism and cause it to reciprocate within said field of the various parts could als be vari d y of operations during a plurality of cycles an ordinarily skilled mechanic without wh f, departing from the rinciple of my in- 5. A structure such as set forth in claim vention so long as t e general mode of at combined with friction means located in operation and cooperation of the parts is th guideways adapted to grasp and hold the preserved in substance. 'cards against return movement when the re- Having described my inventionfll claim: taining claw is out of operation, but not cf- 1. In a card feeding apparat s f r fective to so hold them when the said re-, address-printing machines employing stentai-ning claw is in operation. cilling cards, the combination of a card 6. A combination such as set forth in magazine, a set of sliding claws adapted to claim 4, in which the retaining claw has an pull out the bottom card in the magazine, elastic, yielding connection with the feeding and means for reciprocating said claws, claw, whereby if the retaining clawover;

said claws being provided with raisedproruns. and comes into collision with, an ele- 'ections on their outer ends serving to hold ment of the inking mechanism, the necesthe forward edge of the next card in th sary flexibility to prevent rupture is secure stack slightly above the horizontal plane 7. A combination such as setforth in of the upper surface. of the card. in the claim l in which the retaining claw is pivcontrol of the claws while the claws are otally mounted, provided with a spring norperforming the final half of their feeding mally swinging it out of operative. position stroke. I V i and a pawl adapted to hold it in operative 2. In an address printing machine emposition. v ploying ="-=cil ing Cards 1 h P g 8. In an address printing machine or like 7 hold the nextcard mechanism employing stencilling cards in the printing operation the combination of a magazine for the cards, a periodically operating inking device, guideways adaptedto conduct the cards from the magazine through theinking device, a reciprocating feed plate located below the magazine and provided with claws adapted to grasp "the bottom card in the magazine and force it out along the guidewaystoward the inking device, extensions on said claws, adapted to in the magazine up above the horizontal plane of the 'uppersurface of the card 'being fed during the motion of the plate, and a retaining claw carried by the plate and adjustable to engage or not the ments of the crank and card disabling the pawl card which is within the field of operations of the inking device, whereby when sald retaining claw is out of operative ad ustment a card may be fed-through the inking device at each cycle ofoperation thereof, but when said claw is in operative adjustment the card in the inking field is recipro cated indefinitely therein, while the bottom card "in the magazine is back into said magazine during each cycle of operations. v a

9. In an address printing machine employing stencilling' cards in the printing operation the combination of a rotating inking sector, a cooperating rotating platen sector.

means for feeding the stencilling cards between the two, a vibrating crank for operating said feeding means, gearing for rotatlng the inking and platen sectors and a pawl and ratchet connection to said gearing from said crank, wherebythe reciprocating movefeeding means are transformed into one-way rotary movements for the inking apparatus.

10. A claim 10 in which the inking sector and platen sector gearing has a two-to-one ratio with the ratchet gear, whereby each; reciprocation of the card feeding means corresponding to a half revolution of the ratchet said sectors. Q11. A structure such as set forth in claim 10. combined .with means for temporarily and ratchet mechanism, whereby one or more of the stencilling cards may be fed through the machine without printing therefrom.

' 12. In an address printing machine or like mechanism employing stencilling cards in the printing operation the combination of a rotating inkingseetor, a cooperating rotating platen sector, acard magazine, means for feeding the cards from,the magazine gear produces a complete rotation of each of to and between the inking and platen sec-- tors along a line lying inthe plane of rotatlon thereof, a source of power foroperatrecip'rocated out, of and combination such as set forth in I mechanism while maintaining its connection v with the card-feeding means.

13. In a printing apparatus the combination of a rotating ink fountain havingcir cumferential walls permeable to the ink body contained in said fountain and an inking sector, said two elements being mounted on parallel shafts at a distance apart equal to the sum of the radii of fountain and sector, and gearing for rotating'said elements in opposite, directions at equal speeds together with reciprocating mechanism for driving said gearing, and a stop for said mechanism located at a point such that when the mechanism is left at rest engaging said stop the inking sector will beout'of conwhereby the pressure of the sector on thefountain circumference may be adjusted. 15.In a printing mechanlsm employing stencils an inking and impression device comprising the combination of a rotating ink fountain mounted on a shaft, a, main frame in which swinging frame also mounted on said shaft, an inking sector journaled in said swinging frame and adaptedto rotate in contactwith said fountain, a platen sector.-

adapted to cooperate with the inking sector mounted on a shaft parallel to the fountain shaft and'journaled adjustable pressure means forcing the swinging frame toward the platen sector.

16. In a stencil printing machine the combination with the mainframe and stencil feeding mechanism, of; means for holding and handling stencils of different sizes which means comprises a pair of grooved guide rails, means for fastening one of these rails on the main frame at different distances from the other rail and a two-part card magazine, one magazine part being attached to and supported by one guide rail, and the other magazine part being attached to and supported by the other guide rail.

17. The combination with stencil feeding apparatus of inking mechanism therefor comprising a cylindrical-ink fountain havmga perforated circumferential wall and an outer wrapping therefor comprising a stretching said wrappings circumferentially' around .a

of said circumferential walls.

, EDWIN 1). BELKNAP,

portion said shaft'is journaled, a

in the main frame, and i

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