US2430179A - Portable platform - Google Patents

Portable platform Download PDF

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Publication number
US2430179A
US2430179A US608984A US60898445A US2430179A US 2430179 A US2430179 A US 2430179A US 608984 A US608984 A US 608984A US 60898445 A US60898445 A US 60898445A US 2430179 A US2430179 A US 2430179A
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platforms
platform
portable platform
carry
portable
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US608984A
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Lanchester Frank
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0625—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground using rigid mechanical lifting mechanisms, e.g. levers, cams or gears

Definitions

  • This invention has for its object to provide an apparatus for use more particularly by brick layers in the construction of dwellings, but applicable also to other analogous uses.
  • the invention in brief consists in a road vehicle embodying a horizontal frame, at least two platforms thereon, one platform serving to carry the construction and another to carry building materials, means for raising and depressing said platforms independently on vertical lines normal to fixed points on the respective platforms to occupy any of an infinite number of selected positions and means for constantly maintaining the platforms in horizontal positions during said raising and depressing operations.
  • Figure 1 is a side View of one convenient construction of portable apparatus embodying the present invention.
  • Figure 2 is an end view thereof.
  • Figure 3 is a side view of a modified construction
  • Figure 4 being an end view thereof.
  • Figure 5 is a side view of a further modified construction
  • Figure 6 is an end view thereof.
  • I employ a base a which forms part of a movable vehicle furnished with a pair of wheels bb, the said base being provided with four adjustable feet c, whereby it can be supported rigidly upon the ground.
  • this base are secured four rigid upright posts 11 serving to carry a pair of separate and independently movable platforms e the latter being slidable upwardly or downwardly on the posts.
  • the length of the posts is such as will allow the platforms to be elevated to an extent convenient to the building of (for example) dwellings of one or more stories.
  • One of the platforms serves to carry the constructor, and the other to carry bricks and other building materials.
  • the platforms are independently movable, they can be moved to different levels, so that the one carrying the materials can be raised to a height above that occupied by the constructor, and thu support the materials in 5 Claims.
  • (Cl. 304-29) a position in which they can be conveniently 2 screw-threaded parts g on the platforms.
  • One of each pair of screws is rotatable by a handle it and each pair of shafts are geared together by bevel Wheels 1 and shafts 7' also furnished with handles m. Also the screw serves as an additional supporting post.
  • each platform is carried by three extensible supports n constructed in the form of lazy tongs.
  • I employ telescopic tubular supports s each adapted to co-operate in the manner of the ram and cylinder of a hydraulic jack, operating liquid being supplied to the interiors of the supports by a pump t carried on the base.
  • a road vehicle embodying a horizontal frame, at least two platforms thereon, one platform serving to carry the construction and another to carry building materials, means for raising and depressing said platforms independently on vertical lines normal to fixed points on the respective platforms to occupy any of an infinite number of selected positions and means for An actuating screw 0 is combined with one end of one of the lower links of one of the constantly maintaining the platforms in horizontal positions during said raising and depressing operations.
  • the means for elevating and depressing the platforms independently comprise a plurality of screw-threaded shafts geared together in pairs, suitably positioned operating handles being provided for operating the shafts.

Description

1947. F. LANCHESTER PORTABLE PLATFORM Fil ed Aug. 4, 1945 e Sheets-Sheet x I Ill 1 um um I NOV. 1947. F. LANCHESTER' PORTABLE PLATFORM- Filed Aug. 4; 1945 6 Sheets-Sheet 2 Nov. 4, 1947.
F, LANCHESTER PORTABLE PLATFORM 6 Shets-Sheet s Filed Aug. 4, 1945 H llillllll l l l l l l 1 ll I INH L EE? Nov. '4, 1947. F. LANcHEs E PORTABLE PLATFORM 6 Shets-Sheet 4 Fild Aug. 4, 1945 mbanzzioz jazz/cheater Nov. 4, 1947. F. I ANCHESTVIYER 6 Sheets-Sheet 5 PORTABLE PLATFORM Filed Aug. 4, 1945 Tjmqfiea'ber NW. 4, 1947. F, LANCHESTER PORTABLE PLATFORM 6 Sheets-Sheet 6 Filed Aug. 4, 1945 Lam - 1120 v elzicz I F am 0h ens-Z61 @W Patented Nov. 4, 1947 UNITED STATES TENT FFICE Application August 4, 1.945, Serial No. 608,984 In Great Britain June 20, 1944 This invention has for its object to provide an apparatus for use more particularly by brick layers in the construction of dwellings, but applicable also to other analogous uses.
The invention in brief consists in a road vehicle embodying a horizontal frame, at least two platforms thereon, one platform serving to carry the construction and another to carry building materials, means for raising and depressing said platforms independently on vertical lines normal to fixed points on the respective platforms to occupy any of an infinite number of selected positions and means for constantly maintaining the platforms in horizontal positions during said raising and depressing operations.
Referring to the accompanying diagrammatic drawings Figure 1 is a side View of one convenient construction of portable apparatus embodying the present invention.
Figure 2 is an end view thereof.
Figure 3 is a side view of a modified construction,
Figure 4 being an end view thereof.
Figure 5 is a side view of a further modified construction, and
Figure 6 is an end view thereof.
In one mode of. carryin the invention into effeet, as illustrated by way of example in Figures 1 and 2, I employ a base a which forms part of a movable vehicle furnished with a pair of wheels bb, the said base being provided with four adjustable feet c, whereby it can be supported rigidly upon the ground. On this base are secured four rigid upright posts 11 serving to carry a pair of separate and independently movable platforms e the latter being slidable upwardly or downwardly on the posts. The length of the posts is such as will allow the platforms to be elevated to an extent convenient to the building of (for example) dwellings of one or more stories. One of the platforms serves to carry the constructor, and the other to carry bricks and other building materials. As the platforms are independently movable, they can be moved to different levels, so that the one carrying the materials can be raised to a height above that occupied by the constructor, and thu support the materials in 5 Claims. (Cl. 304-29) a position in which they can be conveniently 2 screw-threaded parts g on the platforms. One of each pair of screws is rotatable by a handle it and each pair of shafts are geared together by bevel Wheels 1 and shafts 7' also furnished with handles m. Also the screw serves as an additional supporting post.
In another construction illustrated in Figures 2 and 3, each platform is carried by three extensible supports n constructed in the form of lazy tongs.
support associated with each platform for extending or contracting this support, and this screw is geared by means of bevel Wheels p and a shaft q with similar screws combined with the other extensible supports. Operating handles 1 are provided for rotating the shafts 0.
In another construction illustrated in Figures 5 and 6, I employ telescopic tubular supports s each adapted to co-operate in the manner of the ram and cylinder of a hydraulic jack, operating liquid being supplied to the interiors of the supports by a pump t carried on the base.
It will be apparent that the invention is capable of being carried out in a variety of ways, and
. is therefore not limited to such examples as those above described, but in all cases at least two independently movable platforms are provided on the one base, and the latter may conveniently form part of a trailer vehicle, though this latter feature is not essential.
By the use of two independently movable platforms, the operations involved in building of dwellings and the like can be greatly expedited and facilitated, and the need for the usual scaffolding and ladders is dispensed with. The constructor is enabled easily to adjust his position progressively to suit the increasing height of the part undergoing erection, and his mate is enabled to keep him supplied with material with a minimum of exertion.
Whilst primarily intended for use in building operations, the. invention is not limited thereto, as it may be applied to other analogous uses, and constructional details may be modified to suit different requirements.
I claim:
1. A road vehicle embodying a horizontal frame, at least two platforms thereon, one platform serving to carry the construction and another to carry building materials, means for raising and depressing said platforms independently on vertical lines normal to fixed points on the respective platforms to occupy any of an infinite number of selected positions and means for An actuating screw 0 is combined with one end of one of the lower links of one of the constantly maintaining the platforms in horizontal positions during said raising and depressing operations.
2. Portable apparatus as claimed in claim wherein the means for elevating and depressing the platforms independently comprise a plurality of screw-threaded shafts geared together in pairs, suitably positioned operating handles being provided for operating the shafts.
and is furnished with a plurality of adjustable feet.
FRANK LANCHESTER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS 10 Number Name Date 2,183,679 Hilli Dec. 19, 1939 2,370,887 Soskin Mar. 6, 1945 610,602 Doldt Sept. 13, 1898 17 Castady Dec. 20, 1939 15 1,718,979 Protzeller July 2, 1929 1,960,355 Tamini May 29, 1934 FOREIGN PATENTS Number Country Date 20 494,148 Germany Mar. 19, 1939
US608984A 1944-06-20 1945-08-04 Portable platform Expired - Lifetime US2430179A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466155A (en) * 1946-03-30 1949-04-05 Airquipment Company Adjustable workstand
US2641846A (en) * 1950-02-14 1953-06-16 Zeno Manuel Wall alignment apparatus
US2696970A (en) * 1951-03-01 1954-12-14 John V Hill Elevator table
US2906365A (en) * 1957-01-11 1959-09-29 Arthur R Howard Automatic scaffolding machine
US2970523A (en) * 1954-05-13 1961-02-07 Giddings & Lewis Operator elevator for machine tools
US2988165A (en) * 1957-02-07 1961-06-13 Thomas J Short Scaffolding arrangement
US3313554A (en) * 1964-12-09 1967-04-11 Emery L Hall Knock-down boat carrier
US4496027A (en) * 1983-01-31 1985-01-29 Spider Staging, Inc. Mobile outrigger for suspending scaffold
US4633625A (en) * 1982-09-29 1987-01-06 Man Gutehoffnungshuette Gmbh Pedestal unit having raisable and lowerable platforms
US5152370A (en) * 1991-01-14 1992-10-06 Silberman Cyril J Bridge docking structure for aircraft
US5375283A (en) * 1991-01-14 1994-12-27 Silberman; Cyril J. Bridge docking structure for aircraft
US20050284697A1 (en) * 2004-06-10 2005-12-29 Rubbermaid Commercial Products Llc Ladder cart
US20110297483A1 (en) * 2010-06-04 2011-12-08 Breithaupt Jr Justin B Adjustable scaffold base
US20160304329A1 (en) * 2013-04-12 2016-10-20 Velvision Oy Lifting device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US610602A (en) * 1898-09-13 The norris peters co
US1718979A (en) * 1929-07-02 protzeller
DE494148C (en) * 1930-03-19 Johannes Petry Work scaffolding for building walls
US1960355A (en) * 1931-01-15 1934-05-29 Tamini Mario Transportable bridge
US2140617A (en) * 1937-06-15 1938-12-20 Castady Harry Adjustable scaffold
US2183679A (en) * 1938-07-12 1939-12-19 Reconstruction Finance Corp Portable hydraulic hoist or movable scaffold
US2370887A (en) * 1943-08-03 1945-03-06 Soskin Harry Elevating scaffold

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US610602A (en) * 1898-09-13 The norris peters co
US1718979A (en) * 1929-07-02 protzeller
DE494148C (en) * 1930-03-19 Johannes Petry Work scaffolding for building walls
US1960355A (en) * 1931-01-15 1934-05-29 Tamini Mario Transportable bridge
US2140617A (en) * 1937-06-15 1938-12-20 Castady Harry Adjustable scaffold
US2183679A (en) * 1938-07-12 1939-12-19 Reconstruction Finance Corp Portable hydraulic hoist or movable scaffold
US2370887A (en) * 1943-08-03 1945-03-06 Soskin Harry Elevating scaffold

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466155A (en) * 1946-03-30 1949-04-05 Airquipment Company Adjustable workstand
US2641846A (en) * 1950-02-14 1953-06-16 Zeno Manuel Wall alignment apparatus
US2696970A (en) * 1951-03-01 1954-12-14 John V Hill Elevator table
US2970523A (en) * 1954-05-13 1961-02-07 Giddings & Lewis Operator elevator for machine tools
US2906365A (en) * 1957-01-11 1959-09-29 Arthur R Howard Automatic scaffolding machine
US2988165A (en) * 1957-02-07 1961-06-13 Thomas J Short Scaffolding arrangement
US3313554A (en) * 1964-12-09 1967-04-11 Emery L Hall Knock-down boat carrier
US4633625A (en) * 1982-09-29 1987-01-06 Man Gutehoffnungshuette Gmbh Pedestal unit having raisable and lowerable platforms
US4496027A (en) * 1983-01-31 1985-01-29 Spider Staging, Inc. Mobile outrigger for suspending scaffold
US5152370A (en) * 1991-01-14 1992-10-06 Silberman Cyril J Bridge docking structure for aircraft
US5375283A (en) * 1991-01-14 1994-12-27 Silberman; Cyril J. Bridge docking structure for aircraft
US5381575A (en) * 1991-01-14 1995-01-17 Silberman; Cyril J. Bridge docking structure for aircraft
US20050284697A1 (en) * 2004-06-10 2005-12-29 Rubbermaid Commercial Products Llc Ladder cart
WO2005123479A2 (en) * 2004-06-10 2005-12-29 Rubbermaid Commercial Products Llc Ladder cart
WO2005123479A3 (en) * 2004-06-10 2006-08-24 Rubbermaid Commercial Products Ladder cart
US7490839B2 (en) 2004-06-10 2009-02-17 Rubbermaid Commercial Products Llc Ladder cart
US20110297483A1 (en) * 2010-06-04 2011-12-08 Breithaupt Jr Justin B Adjustable scaffold base
US8640827B2 (en) * 2010-06-04 2014-02-04 Justin B. Breithaupt, JR. Adjustable scaffold base
US20160304329A1 (en) * 2013-04-12 2016-10-20 Velvision Oy Lifting device

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