US603187A - grommann - Google Patents

Description

(No Model.) 8 SheetsSheet 1.

H. GROMMAN N. WORK EOLDER FOR BRUSH MACHINES. .No. 603,187. Pat'entedApr. 26. 1898.

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's sheets-sheet 2.

(NqMod eld 11. GROMMANN; WORK HOLDER FOR BRUSH MAUHINES. 1

No; 603,187. Patented Apr. 26,1898.

WWHVENTUR WITNESSES ATTHRNEVYE Y nonms PETERS cam .wAsummuu n c 8 Sheets-Sheet 3.

(No Model.)

H GROMMANN v WORK HOLDER FOR BRUSH MACHINES. No. 603,187.

PatentedApl 26, 1898.

WINv NmH WITNESSES AUUHNEYS WASHINGYD (No Model.) 8 Sheets-Sheet 4. H. GROMMANN.

WORK HOLDER FOR BRUSH MAGHINES.

Patented Apr. 26, 1898.

WITNESSES ,MMMINVENTBH G ARTTDRNEYS ('No Model.) 8 Sheets-Sheet 5.

.H..JGR OMMANN. WORK HOLDER-FOR BRUSH MACHINES.

o. 603,187. 'PaJ tentedAprQ26/l898.

67M v JWMM} I I ATTDHNEYE 8 Sheets-Sheet 6 (No Model.)

H GROMMANN WORK HOLDER FOR- BRUSH MACHINES.

Patented Apr, 26, 1898.

WITNESSES 1 WMWINVENTUR I ATTORNEYS (No Model.) s Sheets-Shet 7.

H. GROMMANN. WORK HOLDER FOR BRUSH MACHINES.

No. 603,187. Patented Apr. 26, 1898.

WITNESSES, j ME M MNVENIUH ATTURNEYE' (No Model.) s Sheets-Sheet s.

H. GROMMANN,

WORK HOLDER FOR BRUSH MACHINES. No. 603,187. Patented Apr. 26, 1898.

WITNESSES )MWM/m'vEN-m I WATTURNEYEI UNITED" STATES PATENT OFFICE- I HUGO GROMMANN, OF SOHOENHEIDE, GERMANY, ASSIGNOR TO CARL EDUARD FLEMMING, OF SAME PLACE.

WORK-HOLDER FOR BRUSH-MACHINES.

SPECIFICATION forming part of Letters latent No. 603,187, dated April 26, 1898.

Application filed December 10, 1896. Serial No. 615,225. (No model.) Patented in England August 7, 1896, No. 17,491, and

V in Luxemburg August 8, 1896, No. 2,585.

To all whom it may concern: I I

Beit known that LHUGO GROMMANN, a subject of the King of Saxony, residing at Schoenheide, Kingdom of Saxony, German Empire, have invented an Improvement in Work- Holders for Drilling Brush-Backs, (patented in England, No. 17,491, dated August 7, 1896, and in Luxemburg, No. 2,585, dated August 8, 1896,) of which the following is a specification.

My invention relates to machines for drilling brush-boards and binding the bristles in the holes drilled therein; and it consists in the special features of construction and arrangement hereinafter fully shown and described.

In the drawings, Figure 1' is a side View of the machine; Fig. 2, a top view of the lower or table portion of the machine. Fig. 3 is a front View of Fig. 2. Fig. 4: is a detail side view of a work-table and its attached mech-v anism. Fig. 4 is a detail sectional view on line 4 4 of Fig. 4. Figs. 5, 6, and 7 are views of details of the supporting means for the work-tables. Fig. 8 is a side view of the grooved driving-disk. Fig. 9 is an edgeview of the same with its' attached mechanism; Fig. 10, a plan view of the same. a side view showing a modification of the driving mechanism. Fig. 12 is an end view thereof, and Fig. 13 is a plan view of this modification.

The work-tables a'are similarly screwed to their supporting-brackets b, one of said tables being intended to hold the brush-board in which holes are to be drilled. The other holds the board in which the brush-bristles are to be inserted. The vertical arms 0 of the brackets move through guides d, which are pivoted to a main block or guide-standard f by the screw 6, Figs. 2, 3, and 4, and from this construction the work-table a may have Vertical movement through the guides d and a tilting movement from'the screw 6 as a center. The lower ends of the bracket-arms c carry'bolts g, the inner ends 72 of which have antifriction-rollers, which slide in the slots is of the plates t', which are screwed to the guideblock f. This plate i may be. removed and replaced by another plate having a different form of slot, whereby a brush-board of any Fig. 11 is desired form may be operated upon, and its surface will by the appropriate slotted plate be caused to move in proper proximity to the tool. The plates '6 are of the same shape as to their slots for both tables, as of course the same block is removed from one table and placed upon another.

The guide block orstandard f is adapted to slide in a block m, which may turn about a pin Z in the-plate r, and thus swing the guide, with the worlbtable, laterally. The lower end f of this guide-block f has a roller 0, entering a slot (1 in a plate 19, which is also removable and may be replaced by another plate having a differently-shaped slot, so as to give the work-table any desired lateral I movement to suit the longitudinal surface form of the brush-board. The plates 19 are secured to the cross-plate '1', which is vertically adjustable on the frame 8 and adapted to be held by the screws S. An adjustingscrew S, Fig. 3, engages the plate 0', and by this arrangement the work-tables may be adjusted to, suit different thicknesses of boards, both tables being adjusted simultaneously through their standards f from the crossplate r.

i The automatic movements of the work-ta blesand the main standards are effected as follows: A piece 2 is fitted to the standard f below the work-table to slide from front to rear, a pivot-pin 3 passing through the sliding piece and having a nut 4 to hold the sliding piece on the pin. A block 6, Figs. 5, 6, and 7, is carried pivotally by a pin extending between the upper parts of the piece 2. A second block 6' is arranged above the block 6, said block 6 being carried on a pin extending between the sides of the standard f. Over the blocks 6 and 6 a sliding block 6 is placed, the forks of which embrace the blocks,

.while the sole portion 6 is screwed to the side engaging a pinion ,2 on a shaft 10, supported in hearings to of the frame 8, Fig. 2. The shaft to carries at its rear end a pinion .2 engaged by a vertically-sliding rack 71, Figs. 2, 9, and 10, having a roller y extending into a groove in the face of a disk 25. This disk is rotated step by step by a pawl t engaging the teeth of the disk, the said pawl being carried by a block t, which moves in a way in a standard 25", the block, being connected with a pitman t, thus imparts motion to the rack 31 and thence to the pinion .2 and the shaft u, which operates the slide (I and with it the table a, which is thus moved in the direction of the length of the brush-board, this movement being permitted by the swinging of the support or standard f. The movement in the forward and backward direction of the worktable or in the direction of the width of the brush-board is performed by the movement of the slide (2, which is effected from a second groove in the disk 15, (see full lines in Fig. 8,) into which a roller 1f extends, this roller being carried by a sliding piece 1', moving in a slotted frame and being fixed to the end of the rod 0;, the other end of which is connected to the slide (P. A spring-box f is fixed to the cover of the pivoted guide-block m, the springbolt of said box being arranged to press upon the standard f, and thus force the same upwardly to relieve the frictional contact between the pivot of the standard and the walls of the slot q.

The means for operating the drills and the binding device for the bristles form no part of my invention and are not described herein.

Figs. 11, 12, and 13 show a modification of the machine whereby the amount of movement of the work-tables may be varied both lengthwise and laterally. The rack y in this modification, which is driven by the grooved disk 2, drives the pinion .2 on the shaft a Fig. 13, which shaft is supported in bearings V Z. The pinion z engages the gear T on a shaft B, which is adjustably held in a slot of the frame S, said slot being concentric to the shaft to. Gear T drives the shaft a through an exchangeable gear .2 thereon, which shaft also carries a gear .2, driving the gear .2 on the shaft u. This shaft in the main form carries the gear .2, which moves the work-table transversely of the machine. As the gear .2 is exchangeable, the movemnt of the slide (Z may be varied to change the length of movement of the work-table. The motion of the lower slide d crosswise of the brush-board to move the table forward and backward longitudinally of the machine is also effected by the disk 6, which, through the slide 1* and rod 02, is connected with a swinging lever K by a pin 0' and slot, the end of the rod working in a hearing 10. This lever is connected with the lower slide (1 by a rod connected at b b to the slide and lever, respectively, and the fulcrum Z1 of the leveris adjustable in a loop 76, so that the length of the lever-arm may be changed.

The machine is driven by a crank t through a pinion 25 and a gear 6 as shown in Figs. 1, 2, S, and 12, the latter gear being on the shaft of the disk 25.

I claim 1. In combination the frame, the standard f having a forked upper end, the transverse slide, the pin 3 and block 2 forming the connection between the slide and the upper forked end of the standard, the work-table, the forked block (3 depending therefrom into the forked end of the standard and engaging a portion of the block 2, the brackets Z) depending from the work-table alongside the standard, the slotted guides engaging the said brackets, the pivoted guide-block, the slotted guide for the standard f, and a second slide carrying the transverse slide with means for operating said slides, substantially as described.

2. In combination the work table, the swinging standard, the connection between the standard and table comprising the sliding block 2 in the standard, the table pi votally connected to the standard and engaging the block, the pin 3 engaging the block 2 and means for moving the pin longitudinally and laterally, substantially as described.

In combination, the standard carrying the work-table, the sliding and pivotal c011- nection m for the standard to allow it to have vertical movement as it swings, the slotted guide-plate receiving a roller from the standard, and a vertically-adjustable support for the slotted guide-plate, said adjustable support carrying also the pivotal connection 171, substantially as described.

4. In combination the work-t able,the standard f carrying the same, the pivoted guideblock 711 through which the standard may slide, the slotted guide to cause the standard to have vertical sliding movement as it swings, and the spring-box having a bolt forprcssing the standard upwardly to relieve pressure on the slotted guide-plate, the said spring-box being suspended from the pivoted guide-block to oscillate with the standard, substantially as described.

5. In combination the pivoted worlotable, the pivoted standard carrying the same, the slides d and 01 for moving the said parts 011 their pivots, the grooved disk 25, the gearing operated thereby and connected to the slide (1, for operating the same, said gearing comprising an exchangeable portion, and the connections from the disk to the slide (Z comprising an adjustable lever whereby the traverse of the slides may be changed to suit different brush boards, substantially as decribed.

In testimony whereof I have hereunto set my hand, at Schoenheide, this 25th day of August, 1800, in the presence of two subscribing witnesses.

HUGO GROMMANN.

\Vitnesses:

THEo. M. STEPHAN, EUGEN KLEMENZ.

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