Improvements in Apparatus for Stopping and Starting Wheeled Vehicles.
Year: 1888

page_text: Date of Application, 18th Jan., 1888
Complete Specification Left, 18th Oct., 1888
Complete Specification Accepted, 30th Nov., 1888
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Stopping and Starting Wheeled
Vehicles.
I, HERBERT JOHN HADDAN, of the firm of Herbert & Co. Patent. Agents of
18, Buckingham Street, Strand, W.C. London in the County of Middlesex, Civil
Engineer do hereby declare the nature of this invention a communication to me from
abroad by Johann Friedrich Reimer, Friedrich Conrad Reimer and Paul Koenecke of
Berlin, in the Empire of Germany, Manufacturers, to be as follows:-
This invention consists in an improved power-storing brake for wheeled vehicles.
On one of the wheel axles are two or more toothed wheels and above and below said
toothed wheels pass the horns of a bifurcated rod supporting in a framing so as to be
movable longitudinally towards the respective axle and slightly in a direction to either
side thereof. The horns of said rod are provided with teeth adapted to be engaged by
raising or lowering the rod, with the teeth of the toothed wheels above or below the
axle respectively. To the rod are attached spiral springs adapted to be distended
by the drawing of the rod towards the axle and consequently to exert power to draw
said rod from the axle. When it is desired to stop the vehicle the rack is set in
engagement (by suitable lever connection) with the respective toothed wheel on the
side thereof below the axle by raising the rod; and the movement of the vehicle draws
the rod toward the axle, the vehicle being impeded and arrested by the power
exercised by the distension of the springs aforesaid, a pawl engaging in ratchet teeth
on the rod prevents the return of the latter until desired.
When the vehicle is again started, the opposite rack on the rod is set in engage-
ment with the respective tooth wheel or wheels on the part above the axle and the
power in the distended springs operates to propel the vehicle.
In case the vehicle should not be arrested before the toothed wheel has drawn the
rack fully up, an automatic disengagement of rack takes place, at this point the rack
being however restrained against withdrawal by the springs.
Dated this 18th day of January 1888.

page_text: Improvements in Apparatus for Stopping and Starting Wheeled
Vehicles.
I, HERBERT JOHN HADDAN, of the Firm of Herbert & Co., Patent Agents, of
18 Buckingham Street, Strand, London, in the County of Middlesex, Civil Engineer,
do hereby declare the nature of this invention, a communication to me from abroad
by Johann Friedrich Reimer Friedrich Conrad Reimer and Paul Koenecke of Berlin
in the Empire of Germany, Manufacturers and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
This invention consists in an improved power storing brake for tram cars or other
wheeled vehicles, capable of utilizing the power stored during the stopping of the
vehicle for assistance in setting the vehicle again in motion. The improved apparatus
is represented in the annexed drawings.
Figs. 1, 2 and 3 show the mechanism in front elevation in different positions, two
of the wheels of the vehicle being omitted.
Figs. 4 and 5 are rear elevations of the said mechanism. Fig. 6 is an end view of
one of the driving wheels with axle provided with cogged wheels and racks, and
Fig. 7 is a detail view of the eccentric pin for raising or lowering the racks. There
is a similar device arranged on each side under the frame of the vehicle, the two
devices being suitably connected and working in contrary direction. On the axles of
the vehicle is supported a frame A carrying at one end the supplement or upwardly
extending part B. Outside the latter are fixed upon the axle the toothed wheels a a¹
and a which may be formed together as an integral whole the last mentioned toothed
wheel a² being situated between the two others and having a smaller diameter. On
the bar A is an eye e in which is guided with sufficient play the bar b one end of
which is bifurcated to form two parallel arms provided on their inner edges
with rack teeth and situated respectively below and above the aforesaid toothed wheels
so as to be alternately geared therewith, the arm 62 of the bar b is provided with the
slot d and in the latter is guided the pin f eccentrically fixed on the disc e the shaft of
which is journalled in the extension B so that the said pin therefore raises or lowers
the bifurcated rod on the revolution of the disc e. The movement of the disc e is
effected through the lever system g h i k by the drivers hand lever or equivalent
device. The upper surface of the rack 62 is provided with ratchet teeth into which
falls at a suitable time the pawl m influenced by the spring and pivoted on the
part B so as to prevent unintentional or premature receding of the mechanism. To
the forked rod bare secured two spiral springs n n¹ or other suitable springs connected
at the other end by bolts or other suitable means to lugs on the bar B. On the rear
side of the bar B is arranged a disengaging device for the mechanism. This device
consists of a recessed block o connected with the sliding rod i and a pawl p engaging
in the recesses in the same. The rear side of the forked rod b is also provided with a
projection 9 and the lever arm / with an abutting pin the purpose of which is
hereinafter shown.
The above described mechanism acts as follows:
Figs. 1 and 4 show the apparatus in the position occupied when the vehicle is
running freely. When the vehicle moves in the direction of the arrow and the brake
is to be applied for stopping the same, the driver brings the hand lever into the
position shown in Fig. 2 and in dotted lines in Fig. 4. The bar is thus raised by

page_text: the revolution of the disc e so that on the one hand the lower rack b₁ gears with the
small toothed wheel a² and on the other hand the pawl m falls into the ratchet teeth
on 62 and the pawl p of the disengaging device engages in the last recess (on the
right hand Fig. 4) in the block o displaced with the lever system and prevents the
former from receding. On further movement of the car the small toothed wheel a²
draws the rack 6 outward (Fig. 3) so that the springs n n² are strained and act at the
same time as a brake by their power of tension, suitable known brake contrivances
being added if necessary. The pawl m prevents the mechanism from receding. To
re-impel the vehicle, the driver places the hand lever again in the position shown in
full lines in Figs. 1 and 4. The pawl p of the disengaging device leaves the recess in
the block o by the movement of the lever system ghik, the rod bis lowered by the
revolution of the disc e, the toothed wheel a² is disengaged from the rack b¹ of the
rod b the pawl m is left suspended out of action and the tensioned spiral springs n n¹
draw back the rod 6 the upper rack 2 of which has been brought into gear with the
teeth of the wheels a and a¹ so that the latter are now rotated and with them the
respective axle and the vehicle is impelled by the power exerted by the tension of
the spring. If the vehicle has not been perfectly brought to rest when the rod & has
arrived at the end of its course and the springs n n are in full tension the lever
system is automatically displaced by the abutment of the projection 9, the rod b
against the pin secured to the lever arm whereby the racks are disengaged from
the toothed wheels and the vehicle is no longer impeded in its progress although the
springs remain in tension and the vehicle can be impelled after stoppage by reversing
the hand lever z in the manner before described.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed 1 declare that what
I claim is,
In power storing brakes for wheeled vehicles,
1. The combination of the loosely guided bifurcated bar having the racks the
spiral or other suitable springs n n¹ operating on said bar as set forth and a toothed
wheel or wheels on one of the rotary axles of the vehicle adapted to be geared with
said racks alternately in the manner and for the purpose specified.
a
2. The combination of a loosely bifurcated bar 6 having the racks b₁ 62 spiral or
other suitable springs n n operating on said bar as set forth, toothed wheels à a' and
a smaller toothed wheel a² on one of the rotary axles of the vehicle adapted to be
geared with said racks in the manner and for the purpose specified.
3. The combination of the bar b, springs n n¹ and toothed wheel or wheels sub-
stantially as specified with ratchet teeth on said bar and a pawl m for engagement
therewith in the manner and for the purpose set forth.
4. The combination substantially as set forth of the har springs n n¹ and toothed
wheel or wheels substantially as specified with a slot in said bar and a rotary disc e
having an eccentrically placed pin f engaging in said slot for the purpose described.
5. The combination of the rotary disc e operating as specified with the lever
system g h i k z for controlling the same, the recessed block o and the pawl p for the
purpose set forth.
6. The combination with the power storing brake system substantially as described
of the abutments and operating to disengage the mechanism when stored to the
full extent of its capacity without loss of power stored.
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