US171815A - Improvement in chisels - Google Patents
Improvement in chisels Download PDFInfo
- Publication number
- US171815A US171815A US171815DA US171815A US 171815 A US171815 A US 171815A US 171815D A US171815D A US 171815DA US 171815 A US171815 A US 171815A
- Authority
- US
- United States
- Prior art keywords
- bit
- blade
- shank
- chisel
- cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000001699 lower leg Anatomy 0.000 description 20
- 102100000672 SMPX Human genes 0.000 description 14
- 108060007673 SMPX Proteins 0.000 description 14
- 210000001503 Joints Anatomy 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 102100007105 PARVB Human genes 0.000 description 2
- 101700074913 PARVB Proteins 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17761—Side detent
- Y10T279/17769—Pivoted or rotary
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/59—Manually releaseable latch type
- Y10T403/599—Spring biased manipulator
Definitions
- My invention consists. in-certain improvements in chisels,whereby the chisel blade or shank is adapted to receive and hold ill-sue .cession different widths and shapes of bits,
- Figs. 5 and 6 represent bottom sectional and side. views of'a chisel "blade or shank, A, and cutting-bit B, having the dovetail or scarf joints K K milled out or othervdise formed lengthwise therewith, this latter form being equally simple, and I believe to be an equivalent mode of fastening the cutting-bit to the chisel blade or shank to the one heretofore described; but I prefer the former, as shown in Figs. 1, 2, 3, 4, the cutting-bit being more easily handled and adjusted thereon when in use.
- This arrangement admits ofithe easy-anri informs of cutting-bit as widths and fqrmsof cut are required.
- the bit B in combination With the shankA BtanLaneOnsadjustment imd detachment: from and the spring-catch G, substantiallyas and the chisel blade or shank of as many sizes and for the purposes set forth.
Description
C. E. L. JELLIFFE.
CHISEL. No. 171,815. Patented Ja n.4,18'7 6.
N. FITERB. FHOTO-LITNOGRAPHER, WAEHINBTON. D G.
UNITED CHARLES JELL 'FFE', or ieavfonnn, new JERSEY.
IMPROVEMENT IN CHISELS.
Specification forming part of Letters Patent No. 1715815, dated January 4, 1876; application filed June 21, 1875. v
To all whom it may concern:
Be it known that I, CHARLES E. L. JEL- LIFFE, of the city of Bayonne, county ofHudson and State of New Jersey, have invented, certain new and useful Improvements'in Chisels; and I do hereby declare that the followin g is a full, clear, and exact description thereof, reference being had to the accompanying drawings making part of the same, in which- Figure 1 represents aside view. Fig. 2 represents a sectional view. Figs. 3 and 5 represent bottom views. Fig. 4 represents thecutting-bit and chisel-blade detached. Fig. 6 represents a sectional view out through line as a. Fig. 5. I
Like letters in all the figures refer to the same parts.
My invention consists. in-certain improvements in chisels,whereby the chisel blade or shank is adapted to receive and hold ill-sue .cession different widths and shapes of bits,
for the purpose of making different widths and shapes of cuts, as will be hereafter more fully explained.
The manner of constructing andpperating said improvements is as follows: I take a chisel-blade, shank, or other strip of suitable metal, to which a tang or socket is forged or formed, for the purpose of affixin g the handle or holder, similar to an ordinary chisel, (see Figs. 1, 2, 3, 4, 5, and 6,-:A,) and on its outer end, and on one side thereof, which I herein designate the top side, mill out or otherwise form a dovetail, scarf-joiiit, or other suitable device, K, and on one side of another piece or pieces of suitable metal, B, mill out or otherwise form a similar joint, K, so that the joint on the one, when slipped laterally or otherwise placed together, will fit into the space or spaces on the other, and brace or hold against pressure applied at the end of the instrument, (this latter piece B being the cutting-bit,) and when so placed together to keep them from working apart when the instrument is in use, and also of allouing the cutting-bit B to be attached to, and detached from, thechisel blade or shank A readily and instantaneously. On one side of the aforesaid shank 01 blade A, which I herein designate the bottom side, I mill out or otherwise form a groove or slot, F, running lengthwise therewith nearly .upperend, under which there is a spring or other suitable device, and on its outer end form one or more prongs, S S, said prongs extending through and working in holes or indentures'lhflformed in the outer end of the chisel blade 01" :Slltl1k A, so that when the cutting-bit is slipped laterally or otherwise placed thereon, the prongs catch into the holes I or indentures T, formed therein, thereby keeping the cutting-bit firmly in place, ,andf om working loose or oil its seat when the instrument is in use.
Itwill also be seen, in the aforesaid described form or mode of securing the cutting-bit to the chisel blade or shank, that if the dovetail, or scarf joints K K are cut or formed at right angles with thecntting-bit and chisel blade or shank it would require a nicety of adjustment when placed together, that the prongs might instantaneouslycatch into the holes or indentures T in the cutting-bit; but to obviate this I cut or form the said joints K K, both on the bit and shank, (either on the right or left side thereof, as deemed convenient in using,) diagonally therewith, (see Fig. 4, R 1%,) or, in other words,one. s ide I make slightly wider than the other, so that when placed together it fitsaccurately in its proper position at once.
Figs. 5 and 6 represent bottom sectional and side. views of'a chisel "blade or shank, A, and cutting-bit B, having the dovetail or scarf joints K K milled out or othervdise formed lengthwise therewith, this latter form being equally simple, and I believe to be an equivalent mode of fastening the cutting-bit to the chisel blade or shank to the one heretofore described; but I prefer the former, as shown in Figs. 1, 2, 3, 4, the cutting-bit being more easily handled and adjusted thereon when in use.
The operation is as follows: When the cuttin g-bit is adjusted on the chisel-blade (the spring-catch, to allow of such adjustment, having previously had its prongs withdrawn by means of pressure on the thumb-piece) the upward pressure of the spring forces the prongs into the holes or indentures in the cutting-bit, and holds it therefirmly on the blade or shank in place for use.
This arrangement admits ofithe easy-anri informs of cutting-bit as widths and fqrmsof cut are required.
Now, having. fully described my invention, what I desire to claim and secure by Letters Patent is Witnesses: 4
JOEN'MCMA'JION,
GEORGE F. SPENCER.
The bit B, in combination With the shankA BtanLaneOnsadjustment imd detachment: from and the spring-catch G, substantiallyas and the chisel blade or shank of as many sizes and for the purposes set forth. CHAS. L. JELLIFFE.
Publications (1)
Publication Number | Publication Date |
---|---|
US171815A true US171815A (en) | 1876-01-04 |
Family
ID=2241222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US171815D Expired - Lifetime US171815A (en) | Improvement in chisels |
Country Status (1)
Country | Link |
---|---|
US (1) | US171815A (en) |
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0
- US US171815D patent/US171815A/en not_active Expired - Lifetime
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