US415015A

US415015A - pax-man

Info

Publication number: US415015A
Authority: US
Publication date: 1889-11-12
Anticipated expiration: 1906-11-12

Description

' o Model T. M. BEAR & J. PA ets Sh t 1.

SHAPING MACHINE TABLE.

No. 415,015. Patented Nov. 12, 1889.

N. PETERS, Pholo-Lilhognphon Washington, D. c.

(No Model.) 4 Sheets-Sheet 2. 'T. M. BEAR & J. FAX-MAN.

SHAPING MACHINE TABLE.

No. 415,015. Patented Nov. 12', 1889.

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'Nv PETERS, Phulwllkhographer, wnhin mn. D. c.

(No Model.) I 4 Sheets-Sheet 3.

T. M. BEAR 8v J. PAXMAN.

SHAPING MACHINE TABLE.

No. 415,015. Patented Nov. 12, 1889.

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N. PLIERS. Phalo-Ukhflgmphur, Wuhin nm. D. c.

Nb Model.) 4 Sheets-Sheet 4.

T. M. BEAR '82; J. PAXMAN.

SHAPING MAGHINB TABLE.

No. 415,015. Patented Nov. 12, 1889.

N. PETERS mwmm m, Walhingtvm n c.

UNITED STATES PATENT. QEEICE.

THOMAS MAYHEXV BEAR AND JAMES PAXMAN, OF COLCHESTER, COUNTY OF ESSEX, ENGLAND.

SHAPING-MACHINE TABLE.

SPECIFICATION fornYing part of Letters Patent N 0. 415,015, dated November 12, 1889.

Application filed July 31, 1889.

To aZZ whom, it may concern:

Be it known that we, THOMAS MAYHEW BEAR and JAMES PAxMAN, both subjects of Her Majesty the Queen of Great Britain, re-

siding at Oolchester, in the county of Essex, England, have invented a certain new and useful Improvement in Shaping-Machine Tables, of which the following is a specification.

Our invention relates to an improved construction and arrangement of the work-table for shaping-machines for holding and presenting the work to the cutting-tool, by which the table can be readily moved in a horizontal or vertical direction or have a circular I 5 motion given to same, so that the various faces of the work to be surfaced may be brought quickly and without resetting under the operation of the tool held on the ramhead in the usual manner.

To clearly explain the nature of our invention, reference is made to the accompanying drawings, in which- Figure 1 is a front elevation of our improved device with the face or actual worktable and the pinion for traversing it horizontally removed. Fig. 2 is a bottom View of Fig. 1, but with the work-table in position. Fig. 3 is an elevation, partly in section, of Fig. 1, looking from the left-hand side. Fig.

0 4. is an elevation of the same side, also partly in section, and with the apron or casting B, hereinafter referred to, removed. Fig. 5 is an elevation of our improved device in position on a shaping-machine, a part of which 3 5 only is shown. Fig. 6 is a view of same, looking from the left-hand side of Fig. 5.

To the vertical face A of a shaping-machinesuch as shown in Figs. 5 and 6we apply an apron or casting B, attached to same by means of bolt-heads a a, Figs. 3 and 6, which slide in the usual T-shaped slots of same, and which are capable of being tightened up by nuts I) b, so as to fix the apron at any desired point.

5 In the horizontal face A we secure a rack D, with which engages a pinion d, carried in brackets d d, forming part of the apron B. This pinion d is carried on a spindle (V, Fig. 3, on which it is secured by a feather e,

(shown in dotted lines,) so as to turn therewith. The spindle (Z2 terminates in a squared Serial No. 319,287. (No model.)

or nut-shaped head f, and may be held in the bracket below by a screw and washer, as shown. By applying a spanner to the head f the pinion d will be turned, and, engaging with the rack D, will allow the apron to be traversed horizontally along the face of the bed A.

The apron B has two angle-faced slides g, with which engages a casting E, carrying a circular work-table E. This casting E has two female angled slides (not shown) cast thereon, fitting the male angled slides g g on apron B, Fig. 2, and enabling the casting E to slide vertically on B. Two portions (near the top and bottom) of each slide are cut away and fitted with four short pieces h h of angled vslide or pads, which can be firmly tightened against the slides g g by nuts and bolts passing through them to fix the casting E securely in position when adjusted vertically to the required height. To perform this vertical adjustment, we employ a screwed spindle 2', carried in bearings j, Figs. 1 and 3, forming part of the 7 5 casting E. The screw of this spindle engages with a block or nut 76, having a corresponding female thread, and which forms part of the apron B. On the head of the spindle t'is secured a worm-wheel Z, which engages with a worm m upon a spindle or shaft 41, carried in suitable brackets 0. 0 0, forming part of the casting E. This shaft n terminates in a squared head, which may receive a handle n, as shown in Fig. 2. The turning of this handle will, through the worm and worm-wheel, rotate the spindle i, which by rotating in the block 70 will be raised or lowered, and with it will raise or lower the casting E and worktable E. This latter table has a circular 0 face, with the usual T-shaped slots for allow-. ing the work to be fixed to same. As shown in Fig. 3, it has a boss or projection-E which passes through an opening in the casting E, and to which is secured by screws a worm- 5 wheel pavhich engages withaworm q, secured upon a shaftr, carried in brackets s s s. This shaft may terminate in a squared head similarly to the shaft n and be operated by a handle, like or, such an arrangement being shown too in dotted lines in Fig. 1; or it may terminate in a bevel-gear t, operated by means hereinafter described. The turning of this shaft 1' will, through the worm q and worm-wheel p, allow of the circular table E being rotated so as to bring any face of the work secured on same under the action of the cutting-tool. The casting E has a projection E on the lower part of same, on which rests a bridge-shaped piece it, having its upper face curved to correspond to the radius of the table E. This bridge-piece u is capable of being raised or lowered by a wedge u as it is moved forward or backward by a screw 10 so that when the desired position of the table and work has been attained this bridge-piece may be forced up against the edge of the table to hold it firmly in position.

When it is desired to rotate the table automatically with a step-by-step motion, so that circular work afiixed thereon-such as cylinder-flanges, cross-heads, ends of connectingrods, &c.may be readily and quickly machined, we employ an arrangement such as is illustrated in Figs. 5 and 6, in which the bevel-gear t on the shaft 4' gears with a bevelgear 15' on a shaft G, which, while capable of rotating same, is allowed to move vertically by its method of attachment, which consists of afeather (not shown) on theinside of same which engages with a groove). on the shaft, Fig. 6. In this way the table may be raised or lowered vertically without disturbing the rotating gear. The shaft Ghas at its foot a bevel-gear t, which engages with another bevel 15 secured on a shaft H. This shaft has a groove h therein and carries a bevel 72.2, which has a feather engaging with said groove, so that the shaft may be capable of travel longitudinally when it is desired to move the work-table in that direction.- The gear h is driven from a ratchet-wheel K, carried on a bearing at the side of the machine through gears h h h, the latter being on the same shaft as the ratchet, which shaft, as shown, may have a squared head for operating the parts by a handle when desired. The ratchet K is operated by a pawl which is attached to a pivoted arm 71: operated by a rod L, which is secured to a slotted disk 10, in the manner shown, so that the throw of the rod, and consequently the movement of the pawl, may be adjusted as desired. The disk 20 is connected to or forms part of a pinion 20', having its bearingin a bracketat the back of the machine which pinion is driven from a second pinion 10 on the ordinary main shaft M of the machine. In this way, through the parts just described, the shaping-table E maybe given a step-by-step rotary movement, the amount of which is adjustable by the throw of the rod L, so that the face of the work affixed to the table may be presented to the cutting-tool momentarily and then moved on for a second cut parallel therewith, so that circular objects may have their radius reduced in the manner well known.

What we claim, and desire to secure by Letters Patent, is-

1. The combination, with the bed of a shaping-machine, of an apron or casting capable of longitudinal movement thereon and carrying a casting with means for giving same a vertical moi'ement, said casting carrying a work-table with ,means for rotating same, substantially as described.

2. The combination, with the bed of a shaping-machine, carrying a rack D, of an apron or casting B, carrying a pinion engaging with said rack for imparting a horizontal movement to same, and a screw block or nut K, a casting E, traveling on slides on said apron and having a screwed spindle engaging with said nut K for raising and lowering said casting and means for operating same, and a circular work-table E, carried by said casting and having a'worm-wheel, with means for operating same, by which a circular motion can be given to said work-table, substantially as described.

3. The combination, with a work-table, of means for imparting thereto longitudinal and vertical movement, shafting and gears for imparting rotary movement to the said table, a rod having an adjustable throw, and a ratchet and pawl for operating the said shafting and gears through the said rod, substantially as described.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

THOMAS MAYHEW BEAR. JAMES PAXMAN.

Witnesses.

N ATHANIEL HoLLAwAv, Solicitors Clerk, 7 Nursery Tarmac, B'm't Road, C'olchestcr, Essex.

FRANCIS HERBERT \VEATHERALL, Solicitofs Clcr7c,'No. 0 S1. John Street, Colchester, Essex.