US252299A - Self and howard finger - Google Patents
Self and howard finger Download PDFInfo
- Publication number
- US252299A US252299A US252299DA US252299A US 252299 A US252299 A US 252299A US 252299D A US252299D A US 252299DA US 252299 A US252299 A US 252299A
- Authority
- US
- United States
- Prior art keywords
- lugs
- grate
- sockets
- bars
- howard
- 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
- 210000002832 Shoulder Anatomy 0.000 description 8
- 241000282941 Rangifer tarandus Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49575—Assemblies of semiconductor devices on lead frames
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- This invention relates to ventilating interro locking grate-bars.
- Figurel is a plan view, partly in section, of a grate composed ot' these improved interlock'- ing vent-ilating grate-bars.
- Fig. 2 is a side view ot' the socket side of one of these gratebars.
- the grate-bar A is provided on one side with end and intermediate ⁇ lugs, c, which may-be square, round, or oval in cross-section, and on the opposite sides with sockets b, into which zo the lugs of the next adjacent grate-bar lit. Shoulders c are formed around the lugs a and rims d around the sockets b.
- the lugs et are tapered outward, and the sockets b tapered iuward, and when the bars are placcdtogether the former tit into the latter, and the shoulders c and rims d abut against each other.
- the tapering ot' the lugs and sockets facilitates the insertion of the bars and admits of the eXpansion and contraction of the lugs.
- the lugs a are provided with holes c, whch form, with the sockets, a continuous'ventilating-tube through te grate from side to side.
- the sockets b are provided with groovcsff, which permit the passage of air on the outside of the lugs.
- the grate-bars are locked together, so that an even grate-surface is secured, and spaces being left between the upper and lower edges of the grate bars and the meeting shoulders and rims of the lugs and sockets, there are free passages for air from end to end of the grate-bars.
- a grate-bar constructed with a lug on one side having a ventilating-passage and with a socket on the opposite side adapted to receive a corresponding lug of another grate-har, the
- a grate bar provided with tubular ventilating-lugs and with sockets having ventilating-passages, the lugs and sockets being tapered and adapted to interlock respectively with the Ventilating lugs and sockets of acor- ⁇ responding grate-bar, substantially as described.
- a grate-bar constructed with lugs a, having shoulders c and Ventilating-passages e, and with, sockets b, rims cl, and ventilatinggrooves f, substantially as described.
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Incineration Of Waste (AREA)
Description
Unimet) 1 STATES PATENT OFFICE.
THOMAS F. VAN KEUREN, OF SAUGERTIES, NEW YORK, ASSIGNOR TO HIM- SELF AND HOWARD FINGER, OF SAME. PLACE.
cRATE-BAR.
SPECIFICATION forming part of Letters Patent No. 252,299, dated January 10, 1862.
4 Application led November 9,1881. (Model.)
t, To all 'whom it may concern: i
Be it known thatI, THOMAS F. VAN KEU- REN, a citizen of the United States, residing at Saugerties', in the county of Ulster and State 5 of New York, have invented certain new and useful Improvements iu Grate-Bars, of which the following is a specification, reference being had therein to the accompanying drawings.
This invention relates to ventilating interro locking grate-bars.
Figurel is a plan view, partly in section, of a grate composed ot' these improved interlock'- ing vent-ilating grate-bars. Fig. 2 is a side view ot' the socket side of one of these gratebars. r The grate-bar A is provided on one side with end and intermediate` lugs, c, which may-be square, round, or oval in cross-section, and on the opposite sides with sockets b, into which zo the lugs of the next adjacent grate-bar lit. Shoulders c are formed around the lugs a and rims d around the sockets b. The lugs et are tapered outward, and the sockets b tapered iuward, and when the bars are placcdtogether the former tit into the latter, and the shoulders c and rims d abut against each other. The tapering ot' the lugs and sockets facilitates the insertion of the bars and admits of the eXpansion and contraction of the lugs. y
The lugs a are provided with holes c, whch form, with the sockets, a continuous'ventilating-tube through te grate from side to side.
The sockets b are provided with groovcsff, which permit the passage of air on the outside of the lugs. When the grate bars are placed together, the lugs being shorter than the sockets, there is a space between the ends of the lugs and the ends of the sockets, and the venti latin g-grooves f fcommunicate with this space, .to and thence with the central openings through the lugs.
rlhe last two bars B B ot' the series may be made without the projecting lug, to facilitate the placing of the same in position.
By means of the interlocking lugs and sockets the grate-bars are locked together, so that an even grate-surface is secured, and spaces being left between the upper and lower edges of the grate bars and the meeting shoulders and rims of the lugs and sockets, there are free passages for air from end to end of the grate-bars. These passa ges, in connection with the transverse passages through and around the lugs, afford ample circulation of air. and prevent melting of the grate-bars.
What is claimed as the invention is- 1. A grate-bar constructed with a lug on one side having a ventilating-passage and with a socket on the opposite side adapted to receive a corresponding lug of another grate-har, the
sides of the socket having ventilating-grooves which communicate with the ventilatiug-passage of the lug, substantially as described.A
2. A grate bar provided with tubular ventilating-lugs and with sockets having ventilating-passages, the lugs and sockets being tapered and adapted to interlock respectively with the Ventilating lugs and sockets of acor-` responding grate-bar, substantially as described.
3. A grate-bar constructed with lugs a, having shoulders c and Ventilating-passages e, and with, sockets b, rims cl, and ventilatinggrooves f, substantially as described.
In testimony whereof I aftix my signature in presence ot' two witnesses.
THOMAS F. VAN KEUKEN.
Witnesses:
HOWARD FINGER., JOHN C. DAVIS.
Publications (1)
Publication Number | Publication Date |
---|---|
US252299A true US252299A (en) | 1882-01-10 |
Family
ID=2321598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US252299D Expired - Lifetime US252299A (en) | Self and howard finger |
Country Status (1)
Country | Link |
---|---|
US (1) | US252299A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5048773A (en) * | 1990-06-08 | 1991-09-17 | The United States Of America As Represented By The Secretary Of The Army | Curved grid fin |
-
0
- US US252299D patent/US252299A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5048773A (en) * | 1990-06-08 | 1991-09-17 | The United States Of America As Represented By The Secretary Of The Army | Curved grid fin |
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