USRE4310E - Improvement in grindstone-journal boxes - Google Patents

Description

` UINIITRD-r STATES PATENT OFFIOI?.

THOMAS W. BROWN, OFBOSTON, MASS., ASSIGNOR, BY MRSNR ASSIGNMENTS,

To HARBSTRR BROTHERS a COMPANY, OF READING, PA.

IMPROVEMENT IN GR|NDSTONEJOURNALB-oxues.

l ,Spe'ch'cntoi forming part of Letters Patent N 58,768, dated October 16, 1866,' Reissue No. 4,3l0, dated March 2S, 187i.

.To all z ohoml t may concern; connection withl the box, completely to inclose y Whereas Letters Patent N 0.58,? 68, .dated the wheels. The cover also extends partially October 16, A.. D. 1866, have been -granted to around the grindstOne-shaft, so' that, with the THOMAS W.` BROWN for an Improvement in sides of thebox, it embracesv the grindstonet Grindstone-Journal Boxes, and such patent shaft so as nearly to touch it on all sides.

has been duly assigned' to the undersigned, c c c e are projections formed soasto extend HABBS'TER BROTHERS & COMPANY, of Readover the bearings ofthe friction-wheels. These. ing, 0f the State of Pennsylvania; and whereas projections may also be extended so as to hang theN said HARBSTRR BROTHERS Sr COMPANY down'over andvassist in protecting the ends of have duly applied or petitioned for a new patthe journals of the friction-wheels in manner ent to be issued toI them to correct one or more as shown in Fig. 2. This latter extension forms defects or insuiciencies of the aforesaid patlips, which serve as guards to the ends of the ent, now, therefore, we, THOMAS W. BROWN, journals to protect them from the dust and grit,

0f the city of Boston and'State of Massachw and, besides, operate as Scrapers to-remove setta, andthe said HARBSTRR BROTHERS & from the journal ends while in revolution any COMPANY, do hereby declarethesaid invention I sand or grit that. may accumulate or fall ,there- ..19.bepertignlarlrdeliheilfas,ibllowsrrcfer; j. onsandpwhiclr.were it. not vfor. the lip or lips,

' l with them.-

ence being had to the accompanying drawwould be likely to settle on the journals and ings, which are to be considered as making thence work into their bearings. Thus the part of our speciiication. l journals, by meansofthelips, will be protected Theinventio'n relates to grindstone-journal,| to better advantage than by `the projection boxes, and its purposes and utility will be perover the journals alone. ceived from the following specication. The cover C at its free end is provided with The shafts ofgrindstones are ordinarily sup- I an adjustable catch or fastening, a convenient ported at each end upon the peripheries of form of which is shown'in thedrawings. At-

two friction-wheels placed in close proximity, tached tothe cover are projections c Z d, extend bythe revolution of which, in conjunction finding from it and between thetwo sides of the from contact with the grindstone-shaft, a large box, and so as togo underneath the bent arms amountof friction is obviated. These wheels, of a fastener or catch, E, which is arranged at however, are, if unprotected, liable to 4very the end of the box, and springs over the progreat injury from' the water, sand, and grit jections and into holes made in the box-sides. from the stone, and are apt to become un- The said fastener serves to hold the cover C equally Worn both vupon their peripheries and down upon the box A. f By turning the catchv journals. The'improvement in question is inup into a horizontal position and compressing tended to secure .a more perfect and convenit together, so as to separate it from the box, ient protection for these wheels and their jourwe shall be able to turn the cover upward. nals and the shaft of the grindstone in contact By the use of au adjustable fastening the cover In the drawings,-Figure 1 is a top view of cleaning or oiling the wheels than it would be the improved journal-box; Fig. 2, a side elevation; Fig. 3, a longitudinal section, and Fig. to the box or fram'e ot' the machine. 4 an end view. We do not claim the friction-rollers, nor the In the drawings, .A is the box in which the box, nor cover for the same in themselves, as two friction-wheelsB B are arranged in manarticles resembling them in some respects ner as represented, their journals being sup# have been used separately before,- but ported in bearings a a'a a, east or formed Yat What we do claim is as follows:` the sides of the box. With this box is a close 1. The close protecting-box A, ,in combina cover, C, which' may be hinged at one end, as tion with` the friction-wheels B B and a cover, shown at b. It extends over the peripheries C, constructed so as to fit closely upon the of thewheels and down att-he sides, so as, in said box, and with it completely inclosc the is more readily removed for the purpose of if screwed or otherwise permanently fastened friction-wheels and the grindstone-shaa, sub- -B B, and cover C, when said coverjis provided stantially as and for the purposes se't forth. with an adjustable' catcher fastener, by which 2. The combination ofthe said box A,wheels the said cover may besecured to or released B B, cover C, and projections extending over from the box at pleasure, 'substantially as and and protecting from above the journals of said for the purposes set forth. 2 v friction-wheels, substantially as and for 'the 6. The arrangement f' the' spring-catch E purposes set forth. l with vthe projectiongdd-from' the cover and 3. The combination of the said box A, with the sides of the boxfas specified;Y wheels B B, cover C, and projections c cc c. exn 7. The close protecting box,` and cover C, tending ofer and about and prptectingfrom' `substantially asandfor the purposes speciied.- a ove an at the ends the journalsof said fricl Y T'IIS f. tion-wheels substantial] as and for the r poses Set form Y `P f WILLIAM M. GUsooM,

4. The combination of the said box A,\vh`eels '4 HARBST'ER BROS' B B, and cover C, with or without either of Witnesses:` l the above described and claimed projections, i A. T.Y,0UNAG, when said cover is provided with a hinge at ff- CLB. DREW. v, Y, oueend, substantially as and for the purposes Witnesses"as;to.W.M. G.:

set forth. 5. The combination ofthe said box Al,wl1celsv

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