US3632180A - Carriage, notably for laboratory table - Google Patents

Carriage, notably for laboratory table Download PDF

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Publication number
US3632180A
US3632180A US21236A US3632180DA US3632180A US 3632180 A US3632180 A US 3632180A US 21236 A US21236 A US 21236A US 3632180D A US3632180D A US 3632180DA US 3632180 A US3632180 A US 3632180A
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US
United States
Prior art keywords
carriage
train
movable
carriage according
vertical edge
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
Application number
US21236A
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English (en)
Inventor
Francois Hauville
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR6917754A external-priority patent/FR2041954A5/fr
Priority claimed from FR6941847A external-priority patent/FR2070416A6/fr
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3632180A publication Critical patent/US3632180A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/20—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for shielding the work area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L9/00—Supporting devices; Holding devices
    • B01L9/02—Laboratory benches or tables; Fittings therefor

Definitions

  • This carriage comprises two trains of wheels, rollers or Field of sml'chw 1 casters, one train rolling on the table surface and being so arranged that the other train, rolling along the vertical edge of /2 246; 308/6; 269/55, 56; the table, remains in constant engagement with said edge, thus 23/259, 1 21 /4 05/ 79, acting as a guide means, irrespective of the direction in which the carriage is propelled for changing its position on the table. 7
  • the carriage may have a constant position in relation to the table edge.
  • Hitherto known carriages of the type broadly set forth herein above are adapted to travel on the table surface with the interposition of conventional guide means such as rails, guideways, races or the like, disposed above the table, or provided on the table by construction or fitted on existing tables.
  • guide means such as rails, guideways, races or the like
  • These systems are attended by various inconveniences.
  • they not only increase the construction or equipment cost of the table proper, but they are cumbersome and interfere more or less with the handlings and operations to be performed on the work table, since they are a permanent fixture thereof.
  • the carriage constituting the subject-matter of the present invention while being easily movable on the table, remains in a constant position in relation to the table edge, without requiring any insert, accessories or guide means incorporated in or secured to the table.
  • the present invention relates to a movable carriage adapted to equip tables, benches and other work or handling surfaces, more particularly work tables of laboratories and the like.
  • This carriage is utilized for displacing on the table surface any objects, tools, accessories or other objects which may be necessary for performing the works and handling steps to be carried out on the table.
  • the carriage according to this invention may also advantageously be provided with means adapted to constitute as many devices intended for protecting the operators against possible dangers or risks.
  • this carriage comprises two trains of wheels, rollers, casters or equivalent means, one train rolling on the table surface and being so arranged that the other train, rolling against the vertical edge of the table, is constantly urged for engagement with this edge, irrespective of the direction of the impulse applied to the carriage for moving same from one position to another position, whereby the carriage preserves a constant position in relation to the table edge.
  • the rollers of the train engaging the top surface of the table are mounted on horizontal shafts pivotally mounted in turn to the carriage so that when an impulse is applied to the carriage for causing its travel in one or the other direction said rollers assume an angular position such that the carriage tends to follow an oblique and inward path in relation to the table edge, whereby, during the carriage movement, the train of rollers normally engaging the vertical edge of the table is constantly urged thereagainst.
  • the permissible angular movements, in a horizontal plane, of the trains of rollers engaging the top surface of the table is limited to its optimum value, for example by forming in the carriage elongated slots of predetermined, suitable length, which are engaged by the free ends of the shafts on which said rollers are rotatably mounted.
  • the carriage is provided with a panel of translucent or transparent material adapted to constitute a protection screen and formed with semicircular notches, this carriage being also provided with magnetic means for detachably coupling together a plurality of juxtaposed carriages on a common table.
  • advantage is taken of the mobility and independence of carriages of the type set forth hereinabove, equipped with protection screens, in relation to the surface supporting them, for constituting, by simply adding detachable lateral walls and a top suction box thereto, a safety housing or hood adapted to be set over all types of work surface in any desired position, the length of the front of this housing being variable at will; furthermore, this housing can be used in its open or closed condition, whether wholly or partly, due to the mobility of the protection-screen carriages constituting the front elements.
  • FIG. 1 is an elevational side view of a carriage according to this invention
  • FIG. 2 is a plane part sectional view from above of the carriage
  • FIG. 3 is a part-sectional front view thereof
  • FIG. 4 is a perspective view of the carriage and of the table equipped thereby;
  • FIG. 5 is a view similar to FIG. 4 showing juxtaposed, protection-screen forming carriages
  • FIG. 6 is a perspective and exploded view of a safety housing or hood comprised of carriages according to this invention.
  • FIGS. 7 to 9 are perspective views of various moduli" of such hoods.
  • the carriage 10 comprises two trains of rollers, wheels, casters or equivalent means, namely:
  • a train of rollers 11 having a horizontal axis and arranged in a manner to be described hereinafter, these rollers engaging the top surface of a table 12;
  • rollers 11 are mounted on a horizontal shaft 14 mounted in turn on the carriage so the shaft can pivot about a vertical axis or pin 15. Moreover, the inner end of shaft 14 (in relation to the edge 13 and pivot pin 15) is movable in a slot or like elongated aperture 16 formed in the proper side of the carriage.
  • This panel advantageously comprises on either side and at the prior level a pair of semicircular notches 18 enabling an operator to work or handle equipments or tools under the best possible conditions, well protected by the screen.
  • the carriage has fitted to its side faces permanent magnets such as 19.
  • permanent magnets such as 19.
  • This screen disposed just beneath a hood constitutes an economical movable hood glass panel.
  • the adjacent, registering semicircular notches 18 will thus form circular apertures permitting the intervention of an operator at any time along the protection screen consisting of the assembled carriages 10.
  • the carriage is provided on its front fact with a sliding plate 21 permitting of concealing or on the contrary displaying two inscriptions provided on the carriage, such as: Caution! Do Not Move-Shield in Service and Not in Serivce, thus avoiding any untimely displacement of the carriage and attracting the attention of unexperienced persons on the fact that a dangerous operation is taking place behind the protection screen.
  • the carriage according to this invention may act as a support to a tray on which miscellaneous articles may be placed, as may be required on all worktables or surfaces where operations, treatments and experiments of any nature may take place.
  • FIGS. 6 to 9 describe various forms of embodiment of safety housings or hoods comprising a plurality of carriages according to this invention, equipped with front protection screens and means for constructing a safety housing such as a laboratory hood or the like.
  • the front face of the hood consists of a plurality of carriages 10 according to the present invention, each equipped with a translucent or transparent screen or panel 17 formed with semicircular juxtaposed notches 18 (which are two in number in the example shown in FIGS. 6 and 7) as shown.
  • the lateral walls of the hood consist of translucent panels 22 carried by a relatively heavy or solid base member 23 having its underface advantageously provided with suction cups (not shown) for increasing the stability of the assembly.
  • the front and lateral elements of the hood have fitted thereon a suction box 24, for example by means of front and rear connecting members and 26, respectively.
  • the front member 25 connecting the suction box 24 to the carriages l0 constituting the front section of the hood comprise a groove 25a adapted to be slidably engaged by the edge of the screen equipping each carriage.
  • the rear connecting member 26 is formed with side elements 26a adapted to fit on the side panels 22.
  • the hood can readily be converted into a wholly or partially open hood by adding or removing these front elements.
  • the lateral elements are detachable and therefore adapted to be used either singly or in combination with the front elements for constituting partitions separating adjacent working stations, or isolating a particularly dangerous or delicate piece of equipment or apparatus, or constituting one or more flame-guards or the like.
  • the same lateral elements disposed within the hood or housing are adapted to constitute one or a plurality of chambers of variable, equal or unequal volume, these chambers being intended for use by several operators each disposing of a cell" adapted to be closed more or less completely by means of front elements consisting of the carriages of the type shown in FIGS. 1 to 4 which constitute a movable protection screen.
  • the safety housing such as a hood, obtained by using the elements according to the present invention is not closed completely at the rear and thus permits the use of any desired equipments or apparatus associated with or incorporated in the work surface or worktable on which this housing is in stalled.
  • a movable carriage for a worktable, surface or the like notably a laboratory table comprising two trains of roller means, one train rolling on the top surface of the table and the other train engaging the vertical edge of the table being constantly urged thereagainst, thus acting as a guide means, irrespective of the direction of the impulse applied to the carriage for displacing same along the table, whereby the carriage can remain in a constant position in relation to said vertical edge of the table.
  • Carriage according to claim 2 wherein the permissible angular movement of said train of rollers engaging the top surface of the table is limited to its optimum value by means of a slot formed in said carriage and engaged by the free ends of said shafts on which said roller means are mounted.
  • Carriage according to claim 1 which is provided with a panel of translucent or transparent material to constitute a protection screen, said panel being formed with semicircular notches.
  • Carriage according to claim 1 comprising means such as permanent magnets adapted detachably to interconnect a plurality of carriages juxtaposed on a same table.
  • a safety housing has the front elements slidably connected to said suction box.
  • suction box has a length corresponding to one multiple of the length of the front element to permit the assembling of hoods having any desired length.

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
US21236A 1969-05-30 1970-03-20 Carriage, notably for laboratory table Expired - Lifetime US3632180A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR6917754A FR2041954A5 (en) 1969-05-30 1969-05-30 Mobile sliding carriage for work tables esp - laboratory tables
FR6941847A FR2070416A6 (enrdf_load_stackoverflow) 1969-12-04 1969-12-04

Publications (1)

Publication Number Publication Date
US3632180A true US3632180A (en) 1972-01-04

Family

ID=26215054

Family Applications (1)

Application Number Title Priority Date Filing Date
US21236A Expired - Lifetime US3632180A (en) 1969-05-30 1970-03-20 Carriage, notably for laboratory table

Country Status (2)

Country Link
US (1) US3632180A (enrdf_load_stackoverflow)
DE (1) DE2025825A1 (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874754A (en) * 1972-11-27 1975-04-01 Kewaunee Scient Equipment Corp Biohazard safety cabinet
US4852500A (en) * 1987-03-18 1989-08-01 Herman Miller, Inc. Integrated computer implement work area
US5390998A (en) * 1993-04-26 1995-02-21 Charles Wolf & Sons, Inc. Display case for jewelry
US6076904A (en) * 1998-03-03 2000-06-20 Shepherd; Charles G. Dispensing cabinet
US20070236111A1 (en) * 2006-04-07 2007-10-11 Fasteners For Retail, Inc. Security case
US11624509B2 (en) * 2018-12-19 2023-04-11 The Outdoor Greatroom Company, Llc Guard and cover for outdoor fire heating appliances

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4305628B4 (de) * 1993-02-24 2006-06-14 Hohenloher Spezialmöbelwerk Schaffitzel GmbH + Co. Splitterschutzwand

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE596554C (de) * 1933-01-01 1934-05-03 William Wahrburg Fa Einrichtung zum Schutz von Ladentischen
US2964183A (en) * 1958-05-14 1960-12-13 Gene W Parard Grading table
CA737821A (en) * 1966-07-05 O. Lundqvist Harold Movable shelf structures
US3292559A (en) * 1964-02-05 1966-12-20 Albina Engine And Machine Work Rail mounted mobile jib crane apparatus
US3526938A (en) * 1966-09-13 1970-09-08 Oerlikon Buehrle Holding Ag Machine tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA737821A (en) * 1966-07-05 O. Lundqvist Harold Movable shelf structures
DE596554C (de) * 1933-01-01 1934-05-03 William Wahrburg Fa Einrichtung zum Schutz von Ladentischen
US2964183A (en) * 1958-05-14 1960-12-13 Gene W Parard Grading table
US3292559A (en) * 1964-02-05 1966-12-20 Albina Engine And Machine Work Rail mounted mobile jib crane apparatus
US3526938A (en) * 1966-09-13 1970-09-08 Oerlikon Buehrle Holding Ag Machine tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874754A (en) * 1972-11-27 1975-04-01 Kewaunee Scient Equipment Corp Biohazard safety cabinet
US4852500A (en) * 1987-03-18 1989-08-01 Herman Miller, Inc. Integrated computer implement work area
US5390998A (en) * 1993-04-26 1995-02-21 Charles Wolf & Sons, Inc. Display case for jewelry
US6076904A (en) * 1998-03-03 2000-06-20 Shepherd; Charles G. Dispensing cabinet
US20070236111A1 (en) * 2006-04-07 2007-10-11 Fasteners For Retail, Inc. Security case
US11624509B2 (en) * 2018-12-19 2023-04-11 The Outdoor Greatroom Company, Llc Guard and cover for outdoor fire heating appliances

Also Published As

Publication number Publication date
DE2025825A1 (enrdf_load_stackoverflow) 1970-12-03

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