US1790035A - Propelling screw for motor sleighs - Google Patents
Propelling screw for motor sleighs Download PDFInfo
- Publication number
- US1790035A US1790035A US293713A US29371328A US1790035A US 1790035 A US1790035 A US 1790035A US 293713 A US293713 A US 293713A US 29371328 A US29371328 A US 29371328A US 1790035 A US1790035 A US 1790035A
- Authority
- US
- United States
- Prior art keywords
- screw
- sleighs
- motor
- thread
- propelling screw
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M27/00—Propulsion devices for sledges or the like
Definitions
- PROPELLING SCREW FOR MOTOR SLEIGHS Filed July 18, 1928 I I I I b az / VGNTa I? Patented Jan; 27, 1931 FRnNz wELs, 'or HOHENELBE, ozrcHosLovAKIA; Assreivoaor ⁇ ONE HALF TO C RIS- v TIAN KENIG, or HARTER, NEAR rrorrnvnrnn, CZECHOSLOVAKIA EROPELLING SCREW FOR MOTOR sLEIGHs
- This invention relates to improvements in propellingscrews for vehicles, suchas sleighs' or'sledges, motor cars andthe like..
- Fig. la sledge screw constructed according to the present nventon.
- a sledge-screwin which 'the pressure side ofthe screw-thread is inclned with respect to the body of the screw.
- the most favonrable an le of incination is %5 de'rees.
- the thrust-trajectores'of the whole screw which preferably-is-made of a single piece v and is forced down onto the ground by its weight or by a spring or the'like, pass in the direction of the arrow c, so that the snow, ice
- Theiend of the screw-face maybe sharp edged.
- the screw-drive according to the present inventon is suited for road-sledges, s1eighs,'
- Figz illustratesdiagrammatcally a sledge K according to the present invention, 'in which the screw'shaft s unversally connected to the drivingshaft by a universal joint d in order teper-:nit the siedge tojtravel over ronghor' nneven' surfaces.
- e Iclaimza v body and' a screw-thread on the body and the rearand frontiaces ofthe screw-thread.
- a propel'lng* screw for Operating on snow and ice incrusted surfaces comprising a v body, a screws-thread on the body the effective i screw surface of the thread being inclined with respect to thebody and thescrew thread also being ;undercut, snbstantially as descrbed.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Description
Jan. ;27, 1931. F w l,790,035
PROPELLING SCREW FOR MOTOR SLEIGHS Filed July 18, 1928 I I I b az / VGNTa I? Patented Jan; 27, 1931 FRnNz wELs, 'or HOHENELBE, ozrcHosLovAKIA; Assreivoaor {ONE HALF TO C RIS- v TIAN KENIG, or HARTER, NEAR rrorrnvnrnn, CZECHOSLOVAKIA EROPELLING SCREW FOR MOTOR sLEIGHs This invention relates to improvements in propellingscrews for vehicles, suchas sleighs' or'sledges, motor cars andthe like..
*It has already been proposed to drive motor-sledges or sleighsby means of screws pro- Vided with a square thread or with a' thread disposed vertically with respect of the bodyof the screw. However sledges or sleighs furnished with a screw ;of this kind have not proved satisfactory for the reason hereinafter set forth. v d i According to' the present invention the sieigh-or sledge screw is proviaed ,With
'screw-thread, in which 'the efi'ective screw surface is inclined 'with respect tofthe body v I of the -screw,` preferabiy at degreem In the accompanyingv drawingsis shown A diagrammatically and by way ofexample, in
Fig. la sledge screw constructed according to the present nventon.
Fg. 2 llustrates n sde vew a motor sledge provided with an Operating screw according to Fig. l.
According to the present invention, there is provided a sledge-screwin which 'the pressure side ofthe screw-thread is inclned with respect to the body of the screw. The most favonrable an le of incination is %5 de'rees.
The thrust-trajectores'of the whole screw, which preferably-is-made of a single piece v and is forced down onto the ground by its weight or by a spring or the'like, pass in the direction of the arrow c, so that the snow, ice
293313', and' in A stria August e, -1927. wardand backward, thethread may be undercut as shown; in dotted hn'es in Fg. "1.
Theiend of the screw-face maybe sharp edged.
The screw-drive according to the present inventon: is suited for road-sledges, s1eighs,'
and sledges or ;sleighs ofany kind used for traveliing on sledgy or sandy gronnd.
Figz illustratesdiagrammatcally a sledge K according to the present invention, 'in which the screw'shaft s unversally connected to the drivingshaft by a universal joint d in order teper-:nit the siedge tojtravel over ronghor' nneven' surfaces.- e Iclaimza v body and' a screw-thread on the body and the rearand frontiaces ofthe screw-thread. be-
inginclined;downwardly in the direction of r travel. i
2; A propel'lng* screw for Operating on snow and ice incrusted surfaces comprising a v body, a screws-thread on the body the effective i screw surface of the thread being inclined with respect to thebody and thescrew thread also being ;undercut, snbstantially as descrbed. V I t In testnnony whereo'f I afix my signature RANZ WELS.: e
or the like is not pushed away or scraped ofi?,
but is compressed and forms an inclined surface of tghtened or compressed snow or'ce',
which acts as a bear-'ing orrest for the screw for moving forward the vehicle without any' slip worth mentioning. i v i The ground or the lateral parts of the ground are not pushed away or scraped off 'neither on starting nor during drving, be-
cause at its forward ,end or at both of its ends the diameter of the screw is gradually reduced and thus gradually forms' a screw-` threaded track, which is subsequently engaged and deepened bythe not reduced part v of the screw, whereby the sledge is driven forward.
In order that the 'vehicle can travel for- 1. A "propelling iscrew for Operating on snoW and -ice 'incrusted-surfaces including a
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1790035X | 1927-08-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1790035A true US1790035A (en) | 1931-01-27 |
Family
ID=3688956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US293713A Expired - Lifetime US1790035A (en) | 1927-08-19 | 1928-07-18 | Propelling screw for motor sleighs |
Country Status (1)
Country | Link |
---|---|
US (1) | US1790035A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3059711A (en) * | 1960-10-07 | 1962-10-23 | Alvin C Becker | Snow traction unit |
-
1928
- 1928-07-18 US US293713A patent/US1790035A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3059711A (en) * | 1960-10-07 | 1962-10-23 | Alvin C Becker | Snow traction unit |
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